{"id":43407,"date":"2015-09-17T11:25:58","date_gmt":"2015-09-17T16:25:58","guid":{"rendered":"https:\/\/content.findlaw-admin.com\/ability-legal\/contracts\/uncategorized\/exchange-agreement-presidio-oil-co-presidio-exploration-inc6.html"},"modified":"2015-09-17T11:25:58","modified_gmt":"2015-09-17T16:25:58","slug":"exchange-agreement-presidio-oil-co-presidio-exploration-inc6","status":"publish","type":"corporate_contracts","link":"https:\/\/corporate.findlaw.com\/contracts\/planning\/exchange-agreement-presidio-oil-co-presidio-exploration-inc6.html","title":{"rendered":"Exchange Agreement &#8211; Presidio Oil Co., Presidio Exploration Inc., Presidio West Virginia Inc., Palisade Oil inc and Tom Brown Inc."},"content":{"rendered":"<pre>\n\n                               EXCHANGE AGREEMENT\n\n\n\n                                  BY AND AMONG\n\n\n\n                             PRESIDIO OIL COMPANY,\n\n                          PRESIDIO EXPLORATION, INC.,\n\n                         PRESIDIO WEST VIRGINIA, INC.,\n\n                              PALISADE OIL, INC.,\n\n                                      AND\n\n                                TOM BROWN, INC.\n\n\n\n\n\n                              Dated August 5, 1996\n\n\n\n================================================================================\n   35\n                               TABLE OF CONTENTS\n\n<\/pre>\n<table>\n<caption>\n                                                                                                                     Page<br \/>\n         <s>     <c>                                                                                                   <c><br \/>\n                                                        ARTICLE I<\/p>\n<p>                                                       DEFINITIONS<br \/>\n                                                       &#8212;&#8212;&#8212;&#8211;<\/p>\n<p>         1.1     Defined Terms  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1<br \/>\n                                                                                                                        &#8211;<br \/>\n         1.2     References and Titles  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13<br \/>\n                                                                                                                       &#8212;<\/p>\n<p>                                                        ARTICLE II<\/p>\n<p>                                                       THE EXCHANGE<br \/>\n                                                       &#8212;&#8212;&#8212;&#8212;<\/p>\n<p>         2.1     Exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13<br \/>\n                                                                                                                       &#8212;<br \/>\n         2.2     Directors and Officers of the Presidio Parties . . . . . . . . . . . . . . . . . . . . . . . . . . .  14<br \/>\n                                                                                                                       &#8212;<br \/>\n         2.3     Exchange Consideration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14<br \/>\n                                                                                                                       &#8212;<br \/>\n         2.4     Exchange Fund  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14<br \/>\n                                                                                                                       &#8212;<br \/>\n         2.5     Tom Brown Distributions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14<br \/>\n                                                                                                                       &#8212;<br \/>\n         2.6     No Further Ownership Rights in Presidio Securities . . . . . . . . . . . . . . . . . . . . . . . . .  14<br \/>\n                                                                                                                       &#8212;<br \/>\n         2.7     No Fractional Shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14<br \/>\n                                                                                                                       &#8212;<br \/>\n         2.9     No Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15<br \/>\n                                                                                                                       &#8212;<br \/>\n         2.10    Lost, Stolen, or Destroyed Certificates  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15<br \/>\n                                                                                                                       &#8212;<br \/>\n         2.11    Merger Alternative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15<br \/>\n                                                                                                                       &#8212;<\/p>\n<p>                                                       ARTICLE III<\/p>\n<p>                                             CLOSING AND PRE-CLOSING ACTIONS<br \/>\n                                             &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>         3.1     Time and Place of Closing  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15<br \/>\n                                                                                                                       &#8212;<br \/>\n         3.2     Adjustment to Common Share Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16<br \/>\n                                                                                                                       &#8212;<\/p>\n<p>                                                        ARTICLE IV<\/p>\n<p>                                                        COVENANTS<br \/>\n                                                        &#8212;&#8212;&#8212;<\/p>\n<p>         4.1     Access to Assets, Personnel, and Information . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.2     Confidentiality Obligations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.3     Indemnity Regarding Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.4     Tom Brown to Vote for Plan of Reorganization . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.5     Petition Under the Bankruptcy Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.6     Preparation of Disclosure Statement  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  18<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.7     Disclosure Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  19<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.8     Solicitation of Presidio Securityholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  19<br \/>\n                                                                                                                       &#8212;<br \/>\n<\/c><\/c><\/s><\/caption>\n<\/table>\n<p>                                      -i-<br \/>\n   36<br \/>\n                          TABLE OF CONTENTS, CONTINUED<\/p>\n<table>\n<caption>\n                                                                                                                     PAGE<br \/>\n                                                                                                                     &#8212;-<br \/>\n         <s>     <c>                                                                                                   <c><br \/>\n         4.9     Cooperation; Notification of Certain Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.10    Listing Application  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.11    Third Party Consents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.12    Agreements of Affiliates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.13    Amendment to Plan  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.14    Costs and Expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.15    New D&amp;O Insurance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.16    Information Kept Confidential  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.17    Pre-Closing Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.18    Public Announcements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.19    Conduct of Presidio&#8217;s Business Pending Closing . . . . . . . . . . . . . . . . . . . . . . . . . . .  22<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.20    No Solicitation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.21    Employees  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.22    Severance Plan and Agreements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.23    Presidio ESOP  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.24    Presidio 401K  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.25    Other Plans  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.26    Letters of Credit  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27<br \/>\n                                                                                                                       &#8212;<br \/>\n         4.27    Certain Tom Brown Transactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27<br \/>\n                                                                                                                       &#8212;<\/p>\n<p>                                                        ARTICLE V<\/p>\n<p>                                        REPRESENTATIONS AND WARRANTIES OF PRESIDIO<br \/>\n                                        &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>         5.1     Disclaimers  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.2     Existence  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.3     Authorization and Enforceability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.4     No Violations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.5     Claims and Litigation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.6     Consents and Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.7     Presidio SEC Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.8     Taxes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.9     Employee Benefit Plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.10    Financial Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.11    Capital Structure  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.12    No Undisclosed Liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.13    Absence of Certain Changes or Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.14    Governmental Regulation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.15    Labor Matters  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.16    Accounts Receivable  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.17    Intangible Property  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37<br \/>\n                                                                                                                       &#8212;<br \/>\n<\/c><\/c><\/s><\/caption>\n<\/table>\n<p>                                      -ii-<br \/>\n   37<br \/>\n                          TABLE OF CONTENTS, CONTINUED<\/p>\n<table>\n<caption>\n                                                                                                                     PAGE<br \/>\n                                                                                                                     &#8212;-<br \/>\n         <s>     <c>                                                                                                   <c><br \/>\n         5.18    Presidio&#8217;s Title . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.19    Reserve Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.20    Oil and Gas Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.21    Environmental Matters  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.22    Brokers  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.23    Compliance with Law; Governmental Authorizations . . . . . . . . . . . . . . . . . . . . . . . . . .  40<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.24    Insurance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.25    Contracts, Agreements, Commitments and Other Matters . . . . . . . . . . . . . . . . . . . . . . . .  40<br \/>\n                                                                                                                       &#8212;<br \/>\n         5.26    Fairness Opinion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42<br \/>\n                                                                                                                       &#8212;<\/p>\n<p>                                                        ARTICLE VI<\/p>\n<p>                                       REPRESENTATIONS AND WARRANTIES OF TOM BROWN<br \/>\n                                       &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>         6.1     Existence  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43<br \/>\n                                                                                                                       &#8212;<br \/>\n         6.2     Authorization and Enforceability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43<br \/>\n                                                                                                                       &#8212;<br \/>\n         6.3     No Violations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43<br \/>\n                                                                                                                       &#8212;<br \/>\n         6.4     Consents and Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43<br \/>\n                                                                                                                       &#8212;<br \/>\n         6.5     Tom Brown SEC Documents  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43<br \/>\n                                                                                                                       &#8212;<br \/>\n         6.6     Financial Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43<br \/>\n                                                                                                                       &#8212;<br \/>\n         6.7     Capital Structure  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44<br \/>\n                                                                                                                       &#8212;<br \/>\n         6.8     Claims and Litigation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44<br \/>\n                                                                                                                       &#8212;<br \/>\n         6.9     Financing  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  45<br \/>\n                                                                                                                       &#8212;<\/p>\n<p>                                                       ARTICLE VII<\/p>\n<p>                                         NATURE OF REPRESENTATIONS AND WARRANTIES<br \/>\n                                         &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>         7.1     Limited Recourse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  45<br \/>\n                                                                                                                       &#8212;<br \/>\n         7.2     Nonsurvival of Representations, Warranties, Covenants, and Agreements  . . . . . . . . . . . . . . .  45<br \/>\n                                                                                                                       &#8212;<\/p>\n<p>                                                       ARTICLE VIII<\/p>\n<p>                                                  CONDITIONS TO CLOSING<br \/>\n                                                  &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>         8.1     Conditions Precedent to the Obligations of Presidio  . . . . . . . . . . . . . . . . . . . . . . . .  45<br \/>\n                                                                                                                       &#8212;<br \/>\n         8.2     Conditions Precedent to the Obligations of Tom Brown . . . . . . . . . . . . . . . . . . . . . . . .  46<br \/>\n                                                                                                                       &#8212;<br \/>\n<\/c><\/c><\/s><\/caption>\n<\/table>\n<p>                                     -iii-<br \/>\n   38<br \/>\n                          TABLE OF CONTENTS, CONTINUED<\/p>\n<table>\n<caption>\n                                                                                                                     PAGE<br \/>\n                                                                                                                     &#8212;-<br \/>\n         <s>                                                                                                           <c><br \/>\n                                                        ARTICLE IX<\/p>\n<p>                                                       TERMINATION<br \/>\n                                                       &#8212;&#8212;&#8212;&#8211;<\/p>\n<p>         9.1     Termination Rights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  48<br \/>\n                                                                                                                       &#8212;<br \/>\n         9.2     Payment of Termination Expenses and Fee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51<br \/>\n                                                                                                                       &#8212;<br \/>\n         9.3     Effect of Termination  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  52<br \/>\n                                                                                                                       &#8212;<\/p>\n<p>                                                        ARTICLE X<\/p>\n<p>                                                      MISCELLANEOUS<br \/>\n                                                      &#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>         10.1    Counterparts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  52<br \/>\n                                                                                                                       &#8212;<br \/>\n         10.2    Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  52<br \/>\n                                                                                                                       &#8212;<br \/>\n         10.3    Governing Law  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  53<br \/>\n                                                                                                                       &#8212;<br \/>\n         10.4    Captions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  53<br \/>\n                                                                                                                       &#8212;<br \/>\n         10.5    Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  53<br \/>\n                                                                                                                       &#8212;<br \/>\n         10.6    Entire Agreement; Third Party Beneficiaries  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  53<br \/>\n                                                                                                                       &#8212;<br \/>\n         10.7    Amendment  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  53<br \/>\n                                                                                                                       &#8212;<br \/>\n         10.8    Exhibits and Schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54<br \/>\n                                                                                                                       &#8212;<br \/>\n         10.9    Severability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54<br \/>\n                                                                                                                       &#8212;<\/p>\n<p>                                                     LIST OF EXHIBITS<\/p>\n<p>         Exhibit A        &#8212;      Leases<br \/>\n         Exhibit B        &#8212;      Wells<br \/>\n         Exhibit C        &#8212;      Form of Plan of Reorganization<br \/>\n         Exhibit D        &#8212;      Form of Disclosure Statement<br \/>\n         Exhibit E        &#8212;      Form of Affiliate Letter<br \/>\n<\/c><\/s><\/caption>\n<\/table>\n<p>                                      -iv-<br \/>\n   39<br \/>\n                             LIST OF DEFINED TERMS<\/p>\n<table>\n<caption>\n                                                                                                                     PAGE<br \/>\n                                                                                                                     &#8212;-<br \/>\n<s>                                                                                                                    <c><br \/>\n1933 Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1<br \/>\n                                                                                                                        &#8211;<br \/>\n1934 Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1<br \/>\n                                                                                                                        &#8211;<br \/>\n401k Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27<br \/>\n                                                                                                                       &#8212;<br \/>\nAcreage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1<br \/>\n                                                                                                                        &#8211;<br \/>\nAffiliate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1<br \/>\n                                                                                                                        &#8211;<br \/>\naffiliates  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20<br \/>\n                                                                                                                       &#8212;<br \/>\nAggregate Common Share Value  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2<br \/>\n                                                                                                                        &#8211;<br \/>\nAggregate Consideration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2<br \/>\n                                                                                                                        &#8211;<br \/>\nAgreement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2<br \/>\n                                                                                                                        &#8211;<br \/>\nAllocated Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2<br \/>\n                                                                                                                        &#8211;<br \/>\nAlternative Transaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25<br \/>\n                                                                                                                       &#8212;<br \/>\nBank Obligations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2<br \/>\n                                                                                                                        &#8211;<br \/>\nBankruptcy Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2<br \/>\n                                                                                                                        &#8211;<br \/>\nBankruptcy Court  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2<br \/>\n                                                                                                                        &#8211;<br \/>\nBankruptcy Event  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17<br \/>\n                                                                                                                       &#8212;<br \/>\nBar Date Order  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  18<br \/>\n                                                                                                                       &#8212;<br \/>\nCash Consideration  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2<br \/>\n                                                                                                                        &#8211;<br \/>\nCERCLA  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2<br \/>\n                                                                                                                        &#8211;<br \/>\nCERCLIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2<br \/>\n                                                                                                                        &#8211;<br \/>\nClosing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15<br \/>\n                                                                                                                       &#8212;<br \/>\nClosing Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16<br \/>\n                                                                                                                       &#8212;<br \/>\nCode  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3<br \/>\n                                                                                                                        &#8211;<br \/>\nCommon Share Value  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3<br \/>\n                                                                                                                        &#8211;<br \/>\nConfidentiality Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3<br \/>\n                                                                                                                        &#8211;<br \/>\nConfirmation Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3<br \/>\n                                                                                                                        &#8211;<br \/>\nConfirmation Order  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3<br \/>\n                                                                                                                        &#8211;<br \/>\nContract  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30<br \/>\n                                                                                                                       &#8212;<br \/>\nDebt Obligations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3<br \/>\n                                                                                                                        &#8211;<br \/>\nDefensible Title  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3<br \/>\n                                                                                                                        &#8211;<br \/>\nDesignated Contracts  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4<br \/>\n                                                                                                                        &#8211;<br \/>\nDirectors and Officers  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4<br \/>\n                                                                                                                        &#8211;<br \/>\nDisclosure Statement  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4<br \/>\n                                                                                                                        &#8211;<br \/>\nDistributee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4<br \/>\n                                                                                                                        &#8211;<br \/>\nEmployee Benefit Plans  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32<br \/>\n                                                                                                                       &#8212;<br \/>\nEnvironmental Laws  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4<br \/>\n                                                                                                                        &#8211;<br \/>\nEnvironmental Material  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5<br \/>\n                                                                                                                        &#8211;<br \/>\nEnvironmental Response Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5<br \/>\n                                                                                                                        &#8211;<br \/>\nERISA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5<br \/>\n                                                                                                                        &#8211;<br \/>\nESOP  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27<br \/>\n                                                                                                                       &#8212;<br \/>\nExchange Agent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5<br \/>\n                                                                                                                        &#8211;<br \/>\nExchange Common Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5<br \/>\n                                                                                                                        &#8211;<br \/>\n<\/c><\/s><\/caption>\n<\/table>\n<p>                                      -v-<br \/>\n   40<br \/>\n                            DEFINED TERMS, CONTINUED<\/p>\n<table>\n<caption>\n                                                                                                                     PAGE<br \/>\n                                                                                                                     &#8212;-<br \/>\n<s>                                                                                                                    <c><br \/>\nExchange Consideration  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5<br \/>\n                                                                                                                        &#8211;<br \/>\nExisting Plans  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5<br \/>\n                                                                                                                        &#8211;<br \/>\nFinal Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6<br \/>\n                                                                                                                        &#8211;<br \/>\nGAAP  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6<br \/>\n                                                                                                                        &#8211;<br \/>\nGovernmental Authority  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6<br \/>\n                                                                                                                        &#8211;<br \/>\nHart Scott Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20<br \/>\n                                                                                                                       &#8212;<br \/>\nInitial Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17<br \/>\n                                                                                                                       &#8212;<br \/>\nKnowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6<br \/>\n                                                                                                                        &#8211;<br \/>\nLeases  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7<br \/>\n                                                                                                                        &#8211;<br \/>\nLiabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34<br \/>\n                                                                                                                       &#8212;<br \/>\nLien  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6<br \/>\n                                                                                                                        &#8211;<br \/>\nMajor Assets  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6<br \/>\n                                                                                                                        &#8211;<br \/>\nMaterial Contracts  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40<br \/>\n                                                                                                                       &#8212;<br \/>\nMerger  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15<br \/>\n                                                                                                                       &#8212;<br \/>\nNASDAQ  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6<br \/>\n                                                                                                                        &#8211;<br \/>\nNew D&amp;O Insurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21<br \/>\n                                                                                                                       &#8212;<br \/>\nNRI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4<br \/>\n                                                                                                                        &#8211;<br \/>\nOil and Gas Assets  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7<br \/>\n                                                                                                                        &#8211;<br \/>\nPalisade Oil  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8<br \/>\n                                                                                                                        &#8211;<br \/>\nPermitted Claims  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8<br \/>\n                                                                                                                        &#8211;<br \/>\nPermitted Encumbrances  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8<br \/>\n                                                                                                                        &#8211;<br \/>\nperson  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10<br \/>\n                                                                                                                       &#8212;<br \/>\nPlan of Reorganization  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10<br \/>\n                                                                                                                       &#8212;<br \/>\nPlan Proponents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10<br \/>\n                                                                                                                       &#8212;<br \/>\nPresidio  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10<br \/>\n                                                                                                                       &#8212;<br \/>\nPresidio Class A Common Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10<br \/>\n                                                                                                                       &#8212;<br \/>\nPresidio Class B Common Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10<br \/>\n                                                                                                                       &#8212;<br \/>\nPresidio Common Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10<br \/>\n                                                                                                                       &#8212;<br \/>\nPresidio Common Stock Cash Consideration  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11<br \/>\n                                                                                                                       &#8212;<br \/>\nPresidio Exploration  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11<br \/>\n                                                                                                                       &#8212;<br \/>\nPresidio Financial Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11<br \/>\n                                                                                                                       &#8212;<br \/>\nPresidio Options or Warrants  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33<br \/>\n                                                                                                                       &#8212;<br \/>\nPresidio Parties  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11<br \/>\n                                                                                                                       &#8212;<br \/>\nPresidio Representative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11<br \/>\n                                                                                                                       &#8212;<br \/>\nPresidio SEC Documents  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11<br \/>\n                                                                                                                       &#8212;<br \/>\nPresidio Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11<br \/>\n                                                                                                                       &#8212;<br \/>\nPresidio Securityholders  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  18<br \/>\n                                                                                                                       &#8212;<br \/>\nPresidio Tax Affiliates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30<br \/>\n                                                                                                                       &#8212;<br \/>\nPresidio West Virginia  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11<br \/>\n                                                                                                                       &#8212;<br \/>\nReleased Claims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47<br \/>\n                                                                                                                       &#8212;<br \/>\n<\/c><\/s><\/caption>\n<\/table>\n<p>                                      -vi-<br \/>\n   41<br \/>\n                            DEFINED TERMS, CONTINUED<\/p>\n<table>\n<caption>\n                                                                                                                     PAGE<br \/>\n                                                                                                                     &#8212;-<br \/>\n<s>                                                                                                                    <c><br \/>\nReleasing Parties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47<br \/>\n                                                                                                                       &#8212;<br \/>\nReorganization Cases  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17<br \/>\n                                                                                                                       &#8212;<br \/>\nReserve Report  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule and Exhibit Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11<br \/>\n                                                                                                                       &#8212;<br \/>\nSEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12<br \/>\n                                                                                                                       &#8212;<br \/>\nSEC Case  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12<br \/>\n                                                                                                                       &#8212;<br \/>\nSenior Gas Indexed Notes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12<br \/>\n                                                                                                                       &#8212;<br \/>\nSenior Gas Indexed Notes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3<br \/>\n                                                                                                                        &#8211;<br \/>\nSenior Secured Notes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3<br \/>\n                                                                                                                        &#8211;<br \/>\nSenior Secured Notes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12<br \/>\n                                                                                                                       &#8212;<br \/>\nSeverance Plan and Agreements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26<br \/>\n                                                                                                                       &#8212;<br \/>\nSubordinated Gas Indexed Notes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3<br \/>\n                                                                                                                        &#8211;<br \/>\nSubordinated Gas Indexed Notes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12<br \/>\n                                                                                                                       &#8212;<br \/>\nTax Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12<br \/>\n                                                                                                                       &#8212;<br \/>\nTaxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12<br \/>\n                                                                                                                       &#8212;<br \/>\nTermination Expenses  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51<br \/>\n                                                                                                                       &#8212;<br \/>\nTermination Fee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51<br \/>\n                                                                                                                       &#8212;<br \/>\nThird Party Consent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20<br \/>\n                                                                                                                       &#8212;<br \/>\nTom Brown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12<br \/>\n                                                                                                                       &#8212;<br \/>\nTom Brown Common Stock  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12<br \/>\n                                                                                                                       &#8212;<br \/>\nTom Brown Financial Statements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13<br \/>\n                                                                                                                       &#8212;<br \/>\nTom Brown SEC Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13<br \/>\n                                                                                                                       &#8212;<br \/>\nTom Brown Trading Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13<br \/>\n                                                                                                                       &#8212;<br \/>\nUS Trust  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3<br \/>\n                                                                                                                        &#8211;<br \/>\nWells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7<br \/>\n                                                                                                                        &#8211;<br \/>\nWI  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4<br \/>\n                                                                                                                        &#8211;<br \/>\n<\/c><\/s><\/caption>\n<\/table>\n<p>                                     -vii-<br \/>\n   42<br \/>\n                               LIST OF SCHEDULES<\/p>\n<table>\n<caption>\n                                                                                                                     PAGE<br \/>\n                                                                                                                     &#8212;-<br \/>\n<s>                                                                                                                    <c><br \/>\nSchedule 5.25.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4<br \/>\n                                                                                                                        &#8211;<br \/>\nSchedule 4.22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6<br \/>\n                                                                                                                        &#8211;<br \/>\nSchedule 4.19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 4.19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  24<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 4.22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 4.22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 4.26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.5  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.5  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.8  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.8  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.9  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.9  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 5.25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 6.7  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 6.7  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 6.7  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44<br \/>\n                                                                                                                       &#8212;<br \/>\nSchedule 6.8  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44<br \/>\n                                                                                                                       &#8212;<br \/>\n<\/c><\/s><\/caption>\n<\/table>\n<p>                                     -viii-<br \/>\n   43<br \/>\n                               EXCHANGE AGREEMENT<\/p>\n<p>         This Exchange Agreement dated August 5, 1996, is entered into by and<br \/>\namong Presidio Oil Company, a Delaware corporation, Presidio Exploration, Inc.,<br \/>\na Colorado corporation, Presidio West Virginia, Inc., a Delaware corporation,<br \/>\nPalisade Oil, Inc., a Colorado corporation, and Tom Brown, Inc., a Delaware<br \/>\ncorporation.<\/p>\n<p>                                   RECITALS:<\/p>\n<p>         A.      The boards of directors of Presidio and Tom Brown have each<br \/>\ndetermined that it is in the best interests of their respective constituencies<br \/>\nfor Tom Brown to acquire Presidio upon the terms and subject to the conditions<br \/>\nset forth in this Agreement.<\/p>\n<p>         B.      Presidio and Tom Brown desire to make certain representations,<br \/>\nwarranties, covenants, and agreements in connection with such acquisition and<br \/>\nalso to prescribe various conditions to such acquisition.<\/p>\n<p>         Now, therefore, for and in consideration of the mutual covenants and<br \/>\nagreements set forth in this Agreement and for other good and valuable<br \/>\nconsideration, the receipt and sufficiency of which are hereby acknowledged,<br \/>\nthe parties to this Agreement hereby agree as follows:<\/p>\n<p>                                   ARTICLE I<\/p>\n<p>                                  DEFINITIONS<\/p>\n<p>         1.1     Defined Terms.  The following terms, as used herein, have the<br \/>\nfollowing meanings:<\/p>\n<p>         &#8220;1933 Act&#8221; means the Securities Act of 1933, as amended, and the rules<br \/>\nand regulations thereunder.<\/p>\n<p>         &#8220;1934 Act&#8221; means the Securities Exchange Act of 1934, as amended, and<br \/>\nthe rules and regulations thereunder.<\/p>\n<p>         &#8220;Acreage&#8221; means the Leases set forth on Appendix A-1 to Exhibit A<br \/>\nattached hereto.<\/p>\n<p>         &#8220;Affiliate&#8221; of a person means any person which, directly or<br \/>\nindirectly, controls, is controlled by, or is under common control with, such<br \/>\nperson.  The term &#8220;control&#8221; including, with correlative meaning, the terms<br \/>\n&#8220;controlled by&#8221; and &#8220;under common control with&#8221; as used with respect to any<br \/>\nperson, means the possession, directly or indirectly, of the power to direct or<br \/>\ncause the direction of the management and policies of such person, whether<br \/>\nthrough the ownership of voting securities, by contract or otherwise.<\/p>\n<p>                                      -1-<br \/>\n   44<br \/>\n         &#8220;Aggregate Common Share Value&#8221; means a dollar amount equal to the<br \/>\ndifference between the Aggregate Consideration and the Cash Consideration, as<br \/>\nadjusted pursuant to Section 5.09 of the Plan of Reorganization.<\/p>\n<p>         &#8220;Aggregate Consideration&#8221; means $183,000,000 except as such may be<br \/>\nadjusted pursuant to Section 5.09 of the Plan of Reorganization.<\/p>\n<p>         &#8220;Agreement&#8221; means this Exchange Agreement and all Schedules and<br \/>\nExhibits attached hereto.<\/p>\n<p>         &#8220;Allocated Value&#8221; means (a) the net present value allocated to the<br \/>\ninterest of the Presidio Parties in and to each Oil and Gas Asset that is<br \/>\nseparately valued on the Reserve Report or (b) the amounts set forth on<br \/>\nAppendix A-1 to Exhibit A in respect of the Leases comprising the Acreage.<\/p>\n<p>         &#8220;Alternative Transaction&#8221; has the meaning set forth in Section<br \/>\n4.20(a).<\/p>\n<p>         &#8220;Bank Obligations&#8221; means the obligations of Presidio and its<br \/>\nAffiliates pursuant to the Amendment and Restatement of Amendment, Restatement<br \/>\nand Consolidation of Credit Agreement dated August 6, 1993, as amended, between<br \/>\nPresidio, Presidio Exploration, each bank which is a signatory thereto or<br \/>\nsuccessor or assign thereof and The Chase Manhattan Bank, N.A., as agent.<\/p>\n<p>         &#8220;Bankruptcy Code&#8221; means Title 11 of the United States Code, as amended<br \/>\nfrom time to time.<\/p>\n<p>         &#8220;Bankruptcy Court&#8221; means the Bankruptcy Court presiding over the<br \/>\nPresidio Parties&#8217; Chapter 11 cases.<\/p>\n<p>         &#8220;Bankruptcy Event&#8221; has the meaning set forth in Section 4.5(a).<\/p>\n<p>         &#8220;Bar Date Order&#8221; has the meaning set forth in Section 4.5(d).<\/p>\n<p>         &#8220;Cash Consideration&#8221; means a cash payment in an amount equal to the<br \/>\nsum of (a) the Presidio Common Stock Cash Consideration, plus (b) the excess of<br \/>\n(i) the sum of (x) $100,193,267, plus (y) the amount of accrued and unpaid<br \/>\ninterest on the Bank Obligations allowed by an order of the Bankruptcy Court,<br \/>\nover (ii) all amounts, if any, paid by a Presidio Party in respect of the Bank<br \/>\nObligations (other than interest paid in respect thereof) or the Senior Secured<br \/>\nNotes from the date of this Agreement through and including the Closing.<\/p>\n<p>         &#8220;CERCLA&#8221; means the Comprehensive Environmental Response, Compensation<br \/>\nand Liability Act of 1980, as amended.<\/p>\n<p>         &#8220;CERCLIS&#8221; means the Comprehensive Environmental Response, Compensation<br \/>\nand Liability Information System List.<\/p>\n<p>         &#8220;Closing&#8221; has the meaning set forth in Section 3.1(a).<\/p>\n<p>                                      -2-<br \/>\n   45<br \/>\n         &#8220;Closing Date&#8221; has the meaning set forth in Section 3.1(b).<\/p>\n<p>         &#8220;Code&#8221; means the Internal Revenue Code of 1986, as amended from time<br \/>\nto time.<\/p>\n<p>         &#8220;Common Share Value&#8221; means a value per share of Tom Brown Common Stock<br \/>\nequal to $16.50, as adjusted pursuant to Section 3.2.<\/p>\n<p>         &#8220;Confidentiality Agreement&#8221; means that certain letter agreement dated<br \/>\nAugust 15, 1995 between Tom Brown and Presidio, as amended by letters dated<br \/>\nOctober 30, 1995 and November 10, 1995 and as such may be hereafter amended.<\/p>\n<p>         &#8220;Confirmation Date&#8221; means the date upon which the Confirmation Order<br \/>\nis entered.<\/p>\n<p>         &#8220;Confirmation Order&#8221; means the order of the Bankruptcy Court<br \/>\nconfirming the Plan of Reorganization pursuant to Sections 1129 and 1141 of the<br \/>\nBankruptcy Code.<\/p>\n<p>         &#8220;Contract&#8221; has the meaning set forth in Section 5.4.<\/p>\n<p>         &#8220;Debt Obligations&#8221; means the obligations of Presidio pursuant to the<br \/>\nfollowing:<\/p>\n<p>                 (a)      Indenture dated as of August 6, 1993 among Presidio,<br \/>\n         various of its subsidiaries and U.S. Trust Company of New York (&#8220;US<br \/>\n         Trust&#8221;) relating to $75,000,000 original aggregate principal amount of<br \/>\n         11.5% Senior Secured Notes due 2000 (the &#8220;Senior Secured Notes&#8221;);<\/p>\n<p>                 (b)      Indenture dated as of August 6, 1993 among Presidio,<br \/>\n         various of its subsidiaries and US Trust relating to $100,000,000<br \/>\n         original aggregate principal amount of Senior Gas Indexed Notes due<br \/>\n         2002 (the &#8220;Senior Gas Indexed Notes&#8221;);<\/p>\n<p>                 (c)      Indenture dated as of February 16, 1989 among<br \/>\n         Presidio, various of its subsidiaries and US Trust, as amended,<br \/>\n         relating to $100,000,000 original aggregate principal amount of Senior<br \/>\n         Subordinated Gas Indexed Notes due 1999 (the &#8220;Subordinated Gas Indexed<br \/>\n         Notes&#8221;); and<\/p>\n<p>                 (d)      Indenture dated as of February 14, 1990 among<br \/>\n         Presidio and Bank of Montreal Trust Company relating to $50,000,000<br \/>\n         original aggregate principal amount of 9% Convertible Subordinated<br \/>\n         Debentures Due 2015.<\/p>\n<p>         &#8220;Defensible Title&#8221; with respect to the Major Assets means that title<br \/>\nof a Presidio Party which, subject to Permitted Encumbrances:<\/p>\n<p>                 (a)      is deducible of record (either from the records of<br \/>\n         the applicable county clerk and recorder or, in the case of federal<br \/>\n         leases, from the records of the applicable office of the Bureau of<br \/>\n         Land Management, or in the case of Indian leases, from the applicable<br \/>\n         offices of the Bureau of Indian Affairs, or in the case of state<br \/>\n         leases, from<\/p>\n<p>                                      -3-<br \/>\n   46<br \/>\n         the records of the applicable state land office, or from some<br \/>\n         combination of the foregoing official records), and is free from<br \/>\n         reasonable doubt such that a prudent person with knowledge of all the<br \/>\n         facts and their legal bearing would be willing to accept the same;<\/p>\n<p>                 (b)      entitles a Presidio Party to receive not less than<br \/>\n         the net revenue interest (indicated by the letters &#8220;NRI&#8221;) set forth in<br \/>\n         Exhibit B attached hereto of all oil, gas and associated liquid and<br \/>\n         gaseous hydrocarbons produced, saved and marketed from each of the<br \/>\n         Major Assets throughout the life of such Major Asset, provided, that<br \/>\n         the provisions of this clause (b) shall not be applicable to the<br \/>\n         Leases comprising the Acreage;<\/p>\n<p>                 (c)      obligates a Presidio Party to bear costs and expenses<br \/>\n         relating to the maintenance, development, and operation of each of the<br \/>\n         Major Assets in an amount not greater than the working interest<br \/>\n         (indicated by the letters &#8220;WI&#8221;) set forth in Exhibit B attached hereto<br \/>\n         throughout the life of such Major Asset except to the extent such<br \/>\n         increase in working interest is accompanied by a proportionate<br \/>\n         increase in the net revenue interest attributable to such Major Asset,<br \/>\n         provided, that the provisions of this clause (c) shall not be<br \/>\n         applicable to the Leases comprising the Acreage; and<\/p>\n<p>                 (d)      is free and clear of Liens.<\/p>\n<p>         &#8220;Designated Contracts&#8221; shall mean each of the operating agreements set<br \/>\nforth on Schedule 5.25.<\/p>\n<p>         &#8220;Directors and Officers&#8221;shall have the meaning given such terms in the<br \/>\nNew D&amp;O Insurance.<\/p>\n<p>         &#8220;Disclosure Statement&#8221; means the disclosure statement in the form<br \/>\nattached hereto as Exhibit D as such may be amended or supplemented after the<br \/>\ndate of this Agreement, together with such other solicitation materials that<br \/>\nmay be jointly prepared by the Plan Proponents and filed by Presidio pursuant<br \/>\nto Section 1125 of the Bankruptcy Code in connection with the Plan of<br \/>\nReorganization.<\/p>\n<p>         &#8220;Distributee&#8221; means a person who is a holder of Bank Obligations, Debt<br \/>\nObligations or Presidio Common Stock.<\/p>\n<p>         &#8220;Employee Benefit Plans&#8221; has the meaning set forth in Section 5.9(a).<\/p>\n<p>         &#8220;Environmental Laws&#8221; means any and all applicable laws (including, but<br \/>\nnot limited to, CERCLA and corresponding state or local acts), statutes,<br \/>\nordinances, rules, regulations, policies, guidelines, consents, approvals,<br \/>\nlicenses, judgments, memoranda of understanding, orders, judicial decrees, or<br \/>\nadministrative decrees, treaties, permit conditions, or injunctions of any<br \/>\nGovernmental Authority or court of competent jurisdiction pertaining to the<br \/>\nprotection of the environment.<\/p>\n<p>                                      -4-<br \/>\n   47<br \/>\n         &#8220;Environmental Material&#8221; means (a) any hazardous substance, as defined<br \/>\nby CERCLA, (b) any &#8220;hazardous waste,&#8221; as defined by the Resource Conservation<br \/>\nand Recovery Act, as amended through the date of this Agreement, (c) any<br \/>\nhazardous, dangerous, or toxic chemical, material, waste, or substance, within<br \/>\nthe meaning of and regulated by any Environmental Law, (d) any material<br \/>\nemitting radiation in excess of ordinary background conditions, including any<br \/>\nnaturally occurring radioactive material, and any source, special, or byproduct<br \/>\nmaterial as defined in 42 U.S.C. Section 2011 et seq. and any amendments or<br \/>\nauthorizations thereof, (e) any asbestos-containing materials in any form or<br \/>\ncondition, or (f) any polychlorinated biphenyls in any form or condition.<\/p>\n<p>         &#8220;Environmental Response Action&#8221; means any remedial action, removal<br \/>\naction, remedial investigation and feasibility study, site characterization,<br \/>\nNatural Resource Damage Matters, Brownfield Agreements, or other investigations<br \/>\nwhatsoever relating to the presence or suspected presence of Environmental<br \/>\nMaterials on or originating from operations of Presidio.  The term<br \/>\nEnvironmental Response Action shall not include customary well plugging,<br \/>\nabandonment, and drill site restoration requirements.<\/p>\n<p>         &#8220;ERISA&#8221; means the Employee Retirement Income Security Act of 1974, as<br \/>\namended from time to time.<\/p>\n<p>         &#8220;ESOP&#8221; has the meaning set forth in Section 4.23.<\/p>\n<p>         &#8220;Exchange&#8221; means the transactions contemplated in Section 2.1.<\/p>\n<p>         &#8220;Exchange Agent&#8221; means a person appointed by Tom Brown and Presidio to<br \/>\nserve as Exchange Agent hereunder or absent such appointment a person appointed<br \/>\npursuant to the Plan of Reorganization.<\/p>\n<p>         &#8220;Exchange Common Stock&#8221; means a number of shares of Tom Brown Common<br \/>\nStock (or other securities as may be required under Section 3.2) obtained by<br \/>\ndividing (a) the Aggregate Common Share Value by (b) the Common Share Value,<br \/>\nless the number of shares of Tom Brown Common Stock to which Tom Brown<br \/>\notherwise would have been entitled pursuant to Section 2.1 in respect of its<br \/>\nownership of Senior Gas Indexed Notes or any other Presidio Securities it may<br \/>\nacquire hereafter.  As of the date of this Agreement, the Exchange Common Stock<br \/>\nis initially established hereunder at 5,003,438 shares of Tom Brown Common<br \/>\nStock (with such number of shares being calculated without any reduction<br \/>\nthereof in respect of the shares of Tom Brown Common Stock to which Tom Brown<br \/>\notherwise would be entitled to receive in respect of its ownership of Senior<br \/>\nGas Indexed Notes).<\/p>\n<p>         &#8220;Exchange Consideration&#8221; means the Cash Consideration and the Exchange<br \/>\nCommon Stock and shall also include the net proceeds received from the sale of<br \/>\nfractional shares of Exchange Common Stock pursuant to Section 2.7.<\/p>\n<p>         &#8220;Existing Plans&#8221; means the Employee Benefit Plans and the Severance<br \/>\nPlan and Agreements.<\/p>\n<p>                                      -5-<br \/>\n   48<br \/>\n         &#8220;Final Order&#8221; means an order or judgment of the Bankruptcy Court which<br \/>\nshall not have been reversed, stayed, modified, or amended and as to which (a)<br \/>\nthe time to appeal from or to seek review, rehearing or certiorari shall have<br \/>\nexpired and (b) no appeal or petition for review, rehearing, or certiorari is<br \/>\npending or if appealed shall have been affirmed, or the appeal dismissed by the<br \/>\nhighest court to which such order was appealed, or if review, rehearing or<br \/>\ncertiorari was sought, such review, rehearing, or certiorari has been denied<br \/>\nand no further hearing, appeal or petition for review, rehearing, or certiorari<br \/>\ncan be taken or granted or as to which any right to appeal or to seek a review,<br \/>\nrehearing, or certiorari has been waived.<\/p>\n<p>         &#8220;401k Plan&#8221; has the meaning set forth in Section 4.24.<\/p>\n<p>         &#8220;GAAP&#8221; means those generally accepted accounting principles and<br \/>\npractices that are recognized as such by the Financial Accounting Standards<br \/>\nBoard (or any generally recognized successor).<\/p>\n<p>         &#8220;Governmental Authority&#8221; means any federal, state, local, foreign<br \/>\ngovernment, or political subdivision thereof, exercising competent<br \/>\njurisdiction.<\/p>\n<p>         &#8220;Hart Scott Act&#8221; has the meaning set forth in Section 4.9.<\/p>\n<p>         &#8220;Initial Order&#8221; has the meaning set forth in Section 4.5(c).<\/p>\n<p>         &#8220;Knowledge&#8221; means actual knowledge as of the date of this Agreement of<br \/>\neach of the officers and employees named in Schedule 4.22 and for the purposes<br \/>\nof Section 5.21, the term Knowledge shall also include the actual knowledge as<br \/>\nof the date of this Agreement of Brant Gimmeson.<\/p>\n<p>         &#8220;Leases&#8221; has the meaning set forth in the definition of Oil and Gas<br \/>\nAssets.<\/p>\n<p>         &#8220;Liabilities&#8221; has the meaning set forth in Section 5.12.<\/p>\n<p>         &#8220;Lien&#8221; means any mortgage, pledge, hypothecation, security interest,<br \/>\nencumbrance, charge or lien (statutory or otherwise) or assignment, deposit<br \/>\narrangement or other preferential arrangement in respect of an interest in<br \/>\nproperty intended to secure, support or otherwise assure payment of an<br \/>\nobligation (including any conditional sale or other title retention agreement<br \/>\nand any lease having substantially the same economic effects as any of the<br \/>\nforegoing).<\/p>\n<p>         &#8220;Major Assets&#8221; means (a) each Oil and Gas Asset that is separately<br \/>\nvalued on the Reserve Report as having an Allocated Value individually in<br \/>\nexcess of $50,000 and (b) the Acreage.<\/p>\n<p>         &#8220;Material Contracts&#8221; has the meaning set forth in Section 5.25.<\/p>\n<p>         &#8220;Merger&#8221; has the meaning set forth in Section 2.11.<\/p>\n<p>         &#8220;NASDAQ&#8221; means the Nasdaq National Market of The Nasdaq Stock Market.<\/p>\n<p>                                      -6-<br \/>\n   49<br \/>\n         &#8220;New D&amp;O Insurance&#8221; has the meaning set forth in Section 4.15(a).<\/p>\n<p>         &#8220;Oil and Gas Assets&#8221; means the following:<\/p>\n<p>                 (a)      All right, title, and interest of the Presidio<br \/>\n         Parties in and to (i) all oil and gas leases, all oil, gas and mineral<br \/>\n         leases or other similar leases, mineral interests, fee estates,<br \/>\n         production payments, net profits interests, carried interests,<br \/>\n         royalties, and overriding royalties and all lands subject thereto,<br \/>\n         whether producing or non-producing (the &#8220;Leases&#8221;), including the<br \/>\n         leases, mineral interests, overriding royalties and royalties set<br \/>\n         forth on Exhibit A attached hereto, and any other oil, gas or other<br \/>\n         mineral interests of any type of a Presidio Party wherever situated<br \/>\n         and including any and all right, title and interest of a Presidio<br \/>\n         Party in and to the oil, gas and other hydrocarbons in, on or under<br \/>\n         any of the foregoing, and (ii) all oil and gas wells and injection and<br \/>\n         disposal wells located on any of the foregoing, or used or useful in<br \/>\n         connection therewith, or on lands pooled or unitized therewith (the<br \/>\n         &#8220;Wells&#8221;), including the wells set forth on Exhibit B attached hereto;<\/p>\n<p>                 (b)      All right, title, and interest of the Presidio<br \/>\n         Parties in, to and under or derived from all presently existing or<br \/>\n         proposed unitization, pooling and communitization agreements,<br \/>\n         declarations and orders, and the properties covered and the units<br \/>\n         created or to be created thereby (including all units formed or to be<br \/>\n         formed under orders, regulations, rules or other official actions of<br \/>\n         any federal, state or other governmental agency having jurisdiction)<br \/>\n         to the extent that they relate to or affect the Leases or the Wells;<\/p>\n<p>                 (c)      All right, title, and interest of the Presidio<br \/>\n         Parties in, to and under or derived from all presently existing and<br \/>\n         effective oil, gas liquids, condensate, casinghead gas and gas sales,<br \/>\n         purchase, marketing, exchange, gathering, transportation and<br \/>\n         processing contracts, operating agreements, farmout agreements,<br \/>\n         exploration agreements, option agreements, joint venture agreements,<br \/>\n         partnership agreements, settlement agreements and all other agreements<br \/>\n         and instruments to the extent that they relate to the Leases or the<br \/>\n         Wells;<\/p>\n<p>                 (d)      All right, title, and interest of the Presidio<br \/>\n         Parties in or to all personal property, fixtures, equipment,<br \/>\n         improvements and other personal property, whether real, personal or<br \/>\n         mixed (including well equipment, casing, tubing, tanks, pumping units,<br \/>\n         rods, tank batteries, natural gas, crude oil, condensate or products<br \/>\n         placed into storage or into pipelines, buildings, pumps, motors,<br \/>\n         machinery, injection facilities, disposal facilities, field separators<br \/>\n         and liquid extractors, compressors, pipelines, gathering and flow<br \/>\n         lines, roads, field treating facilities, field offices and office<br \/>\n         furnishings related thereto, field office leases, storage yards and<br \/>\n         off-site inventories, equipment leases, vehicles, trailers, operating<br \/>\n         supplies, inventories and all other appurtenances thereunto<br \/>\n         belonging), and in and to all easements, permits, licenses,<br \/>\n         servitudes, rights-of-way, surface leases and other surface rights to<br \/>\n         the extent any of the foregoing is now being used or proposed to be<br \/>\n         used in connection with the exploration, development, operation or<br \/>\n         maintenance of the Leases or Wells or now being used or proposed to be<br \/>\n         used in connection with the producing, treating, processing, storing,<br \/>\n         gathering, transporting or marketing of oil and gas attributable to<br \/>\n         such properties or interests<\/p>\n<p>                                      -7-<br \/>\n   50<br \/>\n         and other hydrocarbons and products in association therewith, and all<br \/>\n         contract rights (including rights under leases to third parties)<br \/>\n         related to any of the foregoing; and<\/p>\n<p>                 (e)      All right, title, and interest of the Presidio<br \/>\n         Parties in and to all oil, gas, and other minerals owned by a Presidio<br \/>\n         Party or any interests credited to the account of a Presidio Party<br \/>\n         pursuant to any production imbalances or balancing agreements relating<br \/>\n         to any interests owned by a Presidio Party in the Leases or the Wells<br \/>\n         or otherwise arising by virtue of the fact that a Presidio Party may<br \/>\n         not have taken or marketed its full share of oil, gas or other<br \/>\n         minerals attributable to its ownership in the Leases or the Wells<br \/>\n         prior to the Closing Date.<\/p>\n<p>         &#8220;Palisade Oil&#8221; means Palisade Oil, Inc., a Colorado corporation.<\/p>\n<p>         &#8220;Permitted Claims&#8221; means any Liens, Liabilities, claims, or causes of<br \/>\naction arising from any defect adversely affecting a Presidio Party&#8217;s title to<br \/>\nany Oil and Gas Asset, which defect arises from or is attributable to any<br \/>\nfacts, events, or circumstances in existence on or before June 19, 1996.  The<br \/>\nterm Permitted Claims shall also include all Title Defects in existence on or<br \/>\nbefore June 19, 1996.<\/p>\n<p>         &#8220;Permitted Encumbrances&#8221; means:<\/p>\n<p>                 (a)      Lessors&#8217; royalties, overriding royalties,<br \/>\n         reversionary interests and similar burdens as of the date of this<br \/>\n         Agreement to the extent that (i) they burden the Leases comprising the<br \/>\n         Acreage, or (ii) they do not prevent the Presidio Parties from<br \/>\n         receiving the proceeds of production from each of the Major Assets<br \/>\n         attributable to the net revenue interests reflected in Exhibit B;<\/p>\n<p>                 (b)      preferential rights to purchase;<\/p>\n<p>                 (c)      Third Party Consents with respect to which on or<br \/>\n         before the Closing a waiver, consent or a judicial order or<br \/>\n         determination is obtained as contemplated in Section 4.11;<\/p>\n<p>                 (d)      Liens for Taxes not yet delinquent or, if delinquent,<br \/>\n         that are being contested in good faith in the normal course of<br \/>\n         business;<\/p>\n<p>                 (e)      Materialman&#8217;s, mechanic&#8217;s, repairman&#8217;s, employee&#8217;s,<br \/>\n         contractor&#8217;s, operator&#8217;s, and other similar Liens or charges arising<br \/>\n         in the ordinary course of business (i) if they have not been filed<br \/>\n         pursuant to law, (ii) if so filed, they have not yet become due and<br \/>\n         payable or payment is being withheld as provided by law, or (iii) if<br \/>\n         their validity is being contested in good faith by appropriate action;<\/p>\n<p>                 (f)      All rights to consent by, required notices to,<br \/>\n         filings with, or other actions by Governmental Authorities in<br \/>\n         connection with the sale or conveyance of oil and<\/p>\n<p>                                      -8-<br \/>\n   51<br \/>\n         gas leases or interests therein if they are customarily obtained<br \/>\n         subsequent to the sale or conveyance;<\/p>\n<p>                 (g)      Conventional rights of reassignment upon the<br \/>\n         surrender or expiration of any Lease;<\/p>\n<p>                 (h)      Easements, rights-of-way, servitudes, permits,<br \/>\n         surface leases, and other rights in respect of surface operations;<\/p>\n<p>                 (i)      All other Liens, charges, contracts, agreements,<br \/>\n         instruments, obligations, defects, and irregularities affecting<br \/>\n         the Leases or Wells which taken individually or together (i) do not<br \/>\n         interfere materially with the operation, value or use of any of the Oil<br \/>\n         and Gas Assets, (ii) do not prevent a Presidio Party from receiving the<br \/>\n         proceeds of production from any of the Major Assets attributable to the<br \/>\n         net revenue interests reflected in Exhibit B or the ownership interests<br \/>\n         of the Presidio Parties in the Acreage, as may be applicable, (iii) do<br \/>\n         not adversely affect the net revenue interest of a Presidio Party as<br \/>\n         reflected in Exhibit B or the ownership interests of the Presidio<br \/>\n         Parties in the Acreage, as may be applicable, with respect to its share<br \/>\n         of the oil and gas produced from any such Major Asset, or (iv) do not<br \/>\n         increase the portion of the costs and expenses that a Presidio Party is<br \/>\n         obligated to pay above the working interests reflected in Exhibit B or<br \/>\n         the ownership interests of the Presidio Parties in the Acreage, as may<br \/>\n         be applicable; such Liens, charges, contracts, agreements, instruments,<br \/>\n         obligations, defects, and irregularities include the following:<\/p>\n<p>                          (A)     those created by the terms and conditions of<br \/>\n                 division orders, sales contracts, and other existing contracts<br \/>\n                 burdening the Oil and Gas Assets, including any and all terms<br \/>\n                 and conditions affecting or relating to production imbalances;<\/p>\n<p>                          (B)     those which have not prevented the receipt of<br \/>\n                 production proceeds by a Presidio Party or its predecessors in<br \/>\n                 title without suspense by a production purchaser and as to<br \/>\n                 which no challenge to title has been raised on the basis of<br \/>\n                 such defect, so long as it can reasonably be concluded either<br \/>\n                 that such challenge is highly unlikely or that such challenge<br \/>\n                 would be unsuccessful by reason of statutes of limitation,<br \/>\n                 waiver, estoppel, or other defenses;<\/p>\n<p>                          (C)     those described by an attorney&#8217;s title<br \/>\n                 opinion as advisory or waivable as a matter of business<br \/>\n                 judgment; or<\/p>\n<p>                          (D)     those in the nature of customary defects<br \/>\n                 expected to be encountered in the area involved and<br \/>\n                 customarily acceptable to prudent operators and interest<br \/>\n                 owners in that area, including defects that have been cured by<br \/>\n                 possession under applicable statutes of limitation, defects in<br \/>\n                 the early chain of title such as failure to recite marital<br \/>\n                 status in documents, omission of heirship or succession<br \/>\n                 proceedings, lack of survey and failure to record releases of<br \/>\n                 liens, production payments, or mortgages that have expired of<br \/>\n                 their own terms or which through the<\/p>\n<p>                                      -9-<br \/>\n   52<br \/>\n                 passage of time or statute are no longer enforceable or other<br \/>\n                 defects that either as a practical matter have not resulted or<br \/>\n                 are not likely to result in a material claim or are considered<br \/>\n                 waivable under local bar association-approved title standards<br \/>\n                 or customary title practices in the area;<\/p>\n<p>                 (j)      All rights reserved to or vested in any Governmental<br \/>\n         Authority to control or regulate any of the Leases or Wells in any<br \/>\n         manner, and all applicable laws, rules, and orders of governmental<br \/>\n         authorities;<\/p>\n<p>                 (k)      Any Title Defects, Liens or other defects affecting<br \/>\n         the Oil and Gas Assets which are to be discharged at or prior to<br \/>\n         Closing pursuant to the Plan of Reorganization;<\/p>\n<p>                 (l)      Permitted Claims; and<\/p>\n<p>                 (m)      The Liens securing the Bank Obligations and certain<br \/>\n         Debt Obligations which are discharged at or prior to Closing pursuant<br \/>\n         to the Plan of Reorganization.<\/p>\n<p>         &#8220;person&#8221; means an individual, a corporation, a partnership, an<br \/>\nassociation, a trust, an estate or other entity or organization, including a<br \/>\ngovernment or political subdivision or an agency or instrumentality thereof.<\/p>\n<p>         &#8220;Plan Documents&#8221; means all documents and exhibits that aid in<br \/>\neffecting the Plan of Reorganization.<\/p>\n<p>         &#8220;Plan of Reorganization&#8221; means the plan of reorganization in the form<br \/>\nattached hereto as Exhibit C as such may be amended after the date of this<br \/>\nAgreement, which is to be proposed by the Plan Proponents and filed by the<br \/>\nPresidio Parties in accordance with the Bankruptcy Code as a part of the<br \/>\nReorganization Cases of the Presidio Parties and which upon confirmation<br \/>\nimplements the transactions contemplated by this Agreement.<\/p>\n<p>         &#8220;Plan Proponents&#8221; means the Presidio Parties and Tom Brown as the<br \/>\njoint plan proponents of the Plan of Reorganization.<\/p>\n<p>         &#8220;Presidio&#8221; means Presidio Oil Company, a Delaware corporation.<\/p>\n<p>         &#8220;Presidio Class A Common Stock&#8221; means the Class A Common Stock of<br \/>\nPresidio, par value $.10 per share.<\/p>\n<p>         &#8220;Presidio Class B Common Stock&#8221; means the Class B Common Stock of<br \/>\nPresidio, par value $.10 per share.<\/p>\n<p>         &#8220;Presidio Common Stock&#8221; means the Presidio Class A Common Stock and<br \/>\nthe Presidio Class B Common Stock.<\/p>\n<p>                                      -10-<br \/>\n   53<br \/>\n         &#8220;Presidio Common Stock Cash Consideration&#8221; means a cash payment to be<br \/>\nmade pursuant to the Plan of Reorganization in an amount of $250,000 to the<br \/>\nholders of the Presidio Common Stock, as adjusted pursuant to Section 5.09 of<br \/>\nthe Plan of Reorganization.<\/p>\n<p>         &#8220;Presidio Exploration&#8221; means Presidio Exploration, Inc., a Colorado<br \/>\ncorporation.<\/p>\n<p>         &#8220;Presidio Financial Statements&#8221; means the audited and unaudited<br \/>\nconsolidated financial statements of Presidio and its consolidated subsidiaries<br \/>\n(including the related notes) included (or incorporated by reference) in<br \/>\nPresidio&#8217;s Annual Report on Form 10-K for the year ended December 31, 1995.<\/p>\n<p>         &#8220;Presidio Options or Warrants&#8221; has the meaning set forth in Section<br \/>\n5.11(b).<\/p>\n<p>         &#8220;Presidio Parties&#8221; means Presidio, Presidio Exploration, Presidio West<br \/>\nVirginia, and Palisade Oil.<\/p>\n<p>         &#8220;Presidio Representative&#8221; means any director, officer, employee,<br \/>\nagent, advisor (including legal, accounting, and financial advisors), or other<br \/>\nrepresentative of a Presidio Party.<\/p>\n<p>         &#8220;Presidio SEC Documents&#8221; means each report, schedule, registration<br \/>\nstatement and definitive proxy statement filed by Presidio with the SEC since<br \/>\nJanuary 1, 1995 and prior to the date of this Agreement.<\/p>\n<p>         &#8220;Presidio Security&#8221; means the Presidio Common Stock, the promissory<br \/>\nnotes evidencing the Bank Obligations, the Debt Obligations and the Presidio<br \/>\nOptions or Warrants.<\/p>\n<p>         &#8220;Presidio Securityholders&#8221; has the meaning set forth in Section<br \/>\n4.6(a).<\/p>\n<p>         &#8220;Presidio Tax Affiliates&#8221; has the meaning set forth in Section 5.8(a).<\/p>\n<p>         &#8220;Presidio West Virginia&#8221; means Presidio West Virginia, Inc., a<br \/>\nDelaware corporation.<\/p>\n<p>         &#8220;Released Claims&#8221; has the meaning set forth in Section 8.2(i).<\/p>\n<p>         &#8220;Releasing Parties&#8221; has the meaning set forth in Section 8.2(i).<\/p>\n<p>         &#8220;Reorganization Cases&#8221; has the meaning set forth in Section 4.5(a).<\/p>\n<p>         &#8220;Reserve Report&#8221; means the engineering report prepared by Presidio<br \/>\nbased on an SEC Case as of December 31, 1995 and reviewed by Huddleston &amp; Co.,<br \/>\nInc. on behalf of Presidio concerning certain of the Oil and Gas Assets.<\/p>\n<p>         &#8220;Schedule and Exhibit Volume&#8221; means the volume containing the<br \/>\nSchedules and Exhibits A and B to this Agreement to which has been attached a<br \/>\ncover page executed by the parties hereto for identification with this<br \/>\nAgreement.<\/p>\n<p>                                      -11-<br \/>\n   54<br \/>\n         &#8220;SEC&#8221; means the Securities and Exchange Commission.<\/p>\n<p>         &#8220;SEC Case&#8221; means the present value of estimated future net revenues<br \/>\nfrom oil and gas properties discounted at ten percent (10%) before taxes and<br \/>\ndetermined in all material respects in accordance with the rules and<br \/>\nregulations of the SEC using prices and costs in effect on the valuation date.<\/p>\n<p>         &#8220;Senior Gas Indexed Notes&#8221; has the meaning set forth in the definition<br \/>\nof Debt Obligations.<\/p>\n<p>         &#8220;Senior Secured Notes&#8221; has the meaning set forth in the definition of<br \/>\nDebt Obligations.<\/p>\n<p>         &#8220;Severance Plan and Agreements&#8221; has the meaning set forth in Section<br \/>\n4.22.<\/p>\n<p>         &#8220;Subordinated Gas Indexed Notes&#8221; has the meaning set forth in the<br \/>\ndefinition of Debt Obligations.<\/p>\n<p>         &#8220;Tax Returns&#8221; means all federal and all material state, local, and<br \/>\nforeign returns, claims for refund, declarations, reports, estimates,<br \/>\ninformation returns and statements required to be filed with respect to any<br \/>\nTaxes.<\/p>\n<p>         &#8220;Taxes&#8221; means taxes of any kind, levies, or other like assessments,<br \/>\ncustoms, duties, imposts, charges, or fees, including income, gross receipts,<br \/>\nad valorem, value added, excise, stamp, environmental (including taxes under<br \/>\nCode Section 59A), alternative or add-on minimum, real or personal property,<br \/>\nasset, sales, use, license, payroll, transaction, capital, net worth and<br \/>\nfranchise taxes, estimated taxes, withholding, employment, social security,<br \/>\nworkers compensation, utility, severance, production, unemployment<br \/>\ncompensation, occupation, premium, windfall profits, transfer and gains taxes,<br \/>\nor other governmental taxes imposed or payable to the United States or any<br \/>\nstate, local, or foreign governmental subdivision or agency thereof, and in<br \/>\neach instance such term shall include any interest, penalties, or additions to<br \/>\ntax attributable to any such Tax, including penalties for the failure to file<br \/>\nany Tax Return or report.<\/p>\n<p>         &#8220;Termination Expenses&#8221; has the meaning set forth in Section 9.2(b).<\/p>\n<p>         &#8220;Termination Fee&#8221; has the meaning set forth in Section 9.2(a).<\/p>\n<p>         &#8220;Third Party Consent&#8221; has the meaning set forth in Section 4.11.<\/p>\n<p>         &#8220;Title Defects&#8221; means any defect adversely affecting any Major Asset<br \/>\nwhich causes a Presidio Party not to have Defensible Title to such Major Asset.<\/p>\n<p>         &#8220;Tom Brown&#8221; means Tom Brown, Inc., a Delaware corporation.<\/p>\n<p>         &#8220;Tom Brown Common Stock&#8221; means the common stock of Tom Brown, par<br \/>\nvalue $.10 per share.<\/p>\n<p>                                      -12-<br \/>\n   55<br \/>\n         &#8220;Tom Brown Financial Statements&#8221; means the audited and unaudited<br \/>\nconsolidated financial statements of Tom Brown and its consolidated<br \/>\nsubsidiaries (including the related notes) included (or incorporated by<br \/>\nreference) in Tom Brown&#8217;s Annual Report on Form 10-K for the year ended<br \/>\nDecember 31, 1995.<\/p>\n<p>         &#8220;Tom Brown SEC Documents&#8221; means each report, schedule, registration<br \/>\nstatement, and definitive proxy statement filed by Tom Brown with the SEC since<br \/>\nJanuary 1, 1995 and prior to the date of this Agreement.<\/p>\n<p>         &#8220;Tom Brown Trading Value&#8221; means the average of the closing sales<br \/>\nprices of the Tom Brown Common Stock on the NASDAQ (as reported by The Wall<br \/>\nStreet Journal or, if not reported thereby, by another authoritative source)<br \/>\nover the twenty (20) trading days immediately preceding the date that is five<br \/>\ntrading days prior to the Confirmation Date.<\/p>\n<p>         &#8220;Wells&#8221; has the meaning set forth in the definition of Oil and Gas<br \/>\nAssets.<\/p>\n<p>         1.2     References and Titles.  All references in this Agreement to<br \/>\nExhibits, Schedules, Articles, Sections, subsections, and other subdivisions<br \/>\nrefer to the corresponding Exhibits, Schedules, Articles, Sections,<br \/>\nsubsections, and other subdivisions of this Agreement unless expressly provided<br \/>\notherwise.  Each of the Schedules referenced in this Agreement together with<br \/>\nExhibits A and B are contained in the Schedule Volume.  Titles appearing at the<br \/>\nbeginning of any Articles, Sections, subsections, or other subdivisions of this<br \/>\nAgreement are for convenience only, do not constitute any part of such<br \/>\nArticles, Sections, subsections, or other subdivisions, and shall be<br \/>\ndisregarded in construing the language contained therein.  The words &#8220;this<br \/>\nAgreement,&#8221; &#8220;herein,&#8221; &#8220;hereby,&#8221; &#8220;hereunder,&#8221; and &#8220;hereof,&#8221; and words of similar<br \/>\nimport, refer to this Agreement as a whole and not to any particular<br \/>\nsubdivision unless expressly so limited.  The words &#8220;this Section&#8221; and &#8220;this<br \/>\nsubsection,&#8221; and words of similar import, refer only to the Sections or<br \/>\nsubsections hereof in which such words occur.  The word &#8220;or&#8221; is not exclusive,<br \/>\nand the word &#8220;including&#8221; (in its various forms) means &#8220;including without<br \/>\nlimitation.&#8221;  Pronouns in masculine, feminine, or neuter genders shall be<br \/>\nconstrued to state and include any other gender, and words, terms, and titles<br \/>\n(including terms defined herein) in the singular form shall be construed to<br \/>\ninclude the plural and vice versa, unless the context otherwise expressly<br \/>\nrequires.<\/p>\n<p>                                   ARTICLE II<\/p>\n<p>                                  THE EXCHANGE<\/p>\n<p>         2.1     Exchange.  Pursuant to this Agreement and the Plan of<br \/>\nReorganization as confirmed by the Bankruptcy Court, on the Closing Date,<br \/>\nexcept to the extent already owned by Tom Brown or cancelled pursuant to the<br \/>\nPlan of Reorganization, all of (a) the Bank Obligations, (b) the Debt<br \/>\nObligations and (c) the Presidio Common Stock shall be transferred absolutely<br \/>\nand unconditionally to Tom Brown in exchange for that portion and amount of the<br \/>\nExchange Consideration (if any) allocated to the existing holders of such<br \/>\nclaims and interests pursuant to the Plan of Reorganization.  No Exchange<br \/>\nConsideration shall be issued or paid to Tom Brown in respect of its ownership<br \/>\nof (i) Senior Gas Indexed Notes or (ii) any other Presidio Securities which it<br \/>\nmay acquire hereafter to<\/p>\n<p>                                      -13-<br \/>\n   56<br \/>\nthe extent it would be entitled to receive Exchange Common Stock in exchange<br \/>\ntherefor.  Upon delivery of the Exchange Consideration to the Exchange Agent as<br \/>\nprovided in Section 2.4 hereof, Tom Brown shall be deemed the sole equity<br \/>\nholder, and the sole holder of the Bank Obligations and Debt Obligations of<br \/>\nPresidio, and Presidio&#8217;s obligations to the holders of the (a) Bank<br \/>\nObligations, (b) the Debt Obligations and (c) the Presidio Common Stock under<br \/>\nthe Plan of Reorganization shall be deemed to be satisfied in full and<br \/>\ndischarged.  As of the Closing Date, the Presidio Options and Warrants shall be<br \/>\ncancelled pursuant to the Plan of Reorganization.  Tom Brown, as the sole<br \/>\nequity owner of Presidio, shall, immediately following the Exchange described<br \/>\nin this Section 2.1, contribute to Presidio all of the Bank Obligations and<br \/>\nDebt Obligations.  No additional shares of Presidio capital stock shall be<br \/>\nissued to Tom Brown in exchange therefor.  The Bank Obligations and Debt<br \/>\nObligations shall thereupon be cancelled, terminated, and discharged.<\/p>\n<p>         2.2     Directors and Officers of the Presidio Parties.  The directors<br \/>\nand officers of each of the Presidio Parties shall resign as of the Closing.<\/p>\n<p>         2.3     Exchange Consideration.  At the Closing, Tom Brown shall pay<br \/>\nor issue (in accordance with Section 2.4 hereof) the Exchange Consideration.<\/p>\n<p>         2.4     Exchange Fund.  At the Closing, Tom Brown shall deposit with<br \/>\nthe Exchange Agent, for the benefit of each of the Distributees, the Exchange<br \/>\nConsideration including certificates representing the Exchange Common Stock.<br \/>\nThe Cash Consideration shall be tendered and paid to the Exchange Agent in<br \/>\nimmediately available funds.  The Exchange Agent will distribute to the<br \/>\nDistributees the Exchange Consideration (together with any interest earned<br \/>\nthereon) in accordance with the Plan of Reorganization.  The Exchange Agent<br \/>\nshall receive and hold all dividends or other distributions paid or distributed<br \/>\nwith respect to the Exchange Common Stock held by it for the account of the<br \/>\nDistributees entitled thereto.<\/p>\n<p>         2.5     Tom Brown Distributions.  A Distributee shall be entitled to<br \/>\nreceive dividends and other distributions with respect to the Exchange Common<br \/>\nStock to which such Distributee is entitled pursuant to the Plan of<br \/>\nReorganization.<\/p>\n<p>         2.6     No Further Ownership Rights in Presidio Securities.  Except<br \/>\nfor the contribution to be made by Tom Brown pursuant to Section 2.1, if, after<br \/>\nthe Closing, a certificate representing a Presidio Security registered in the<br \/>\nname of a Distributee (other than Tom Brown) is presented to Presidio or the<br \/>\nExchange Agent for any reason, it shall be cancelled and exchanged for that<br \/>\nportion and amount, if any, of the Exchange Consideration allocated thereto<br \/>\npursuant to the Plan of Reorganization.<\/p>\n<p>         2.7     No Fractional Shares.  No fractional shares of the Exchange<br \/>\nCommon Stock shall be issued to a Distributee.  The Exchange Agent shall, on<br \/>\nbehalf of all Distributees otherwise entitled to receive fractional shares of<br \/>\nExchange Common Stock, promptly following the Closing, aggregate such<br \/>\nfractional shares of Exchange Common Stock and sell the resulting whole shares<br \/>\nof Exchange Common Stock for the account of such Distributees, and such<br \/>\nDistributees shall be entitled to receive their allocable portion of the net<br \/>\nproceeds of the sale thereof.<\/p>\n<p>                                      -14-<br \/>\n   57<br \/>\n         2.8     Termination of Exchange Fund.  Any portion of the Exchange<br \/>\nConsideration held by the Exchange Agent that is not distributed pursuant to<br \/>\nthe Plan of Reorganization within ninety (90) days after the Closing shall,<br \/>\nupon Presidio&#8217;s request, be delivered to Tom Brown.  Thereafter, a Distributee<br \/>\nshall look only to Presidio for distribution of that portion and amount of the<br \/>\nExchange Consideration (including any dividends or distributions made in<br \/>\nrespect of Exchange Common Stock) that such Distributee is entitled to receive<br \/>\npursuant to the Plan of Reorganization.  Such amounts shall bear no interest.<\/p>\n<p>         2.9     No Liability.  None of Presidio, Tom Brown, the Exchange<br \/>\nAgent, or any other person shall be liable to any Distributee for any amount<br \/>\nproperly delivered to any public official pursuant to any applicable abandoned<br \/>\nproperty, escheat, or similar law.  Any amounts remaining unclaimed by a<br \/>\nDistributee for a period of two years following the Closing (or such earlier<br \/>\ndate immediately prior to the time at which such amounts would otherwise<br \/>\nescheat to or become the property of any governmental entity) shall, to the<br \/>\nextent permitted by applicable law, become the property of Tom Brown free and<br \/>\nclear of any claims or interest of any such Distributee or his successors,<br \/>\nassigns, or personal representative previously entitled thereto.<\/p>\n<p>         2.10    Lost, Stolen, or Destroyed Certificates.  If any certificate<br \/>\nrepresenting a Presidio Security shall have been lost, stolen, or destroyed,<br \/>\nupon the making of an affidavit of that fact by the Distributee claiming such<br \/>\ncertificate to be lost, stolen, or destroyed and, if required by Tom Brown, the<br \/>\nissuance by such Distributee of such reasonable indemnity as Tom Brown may<br \/>\nrequire against any claim that may be made against it with respect to such<br \/>\ncertificate, the Exchange Agent or Tom Brown, as applicable, shall issue in<br \/>\nexchange for such lost, stolen, or destroyed certificate that portion and<br \/>\namount of the Exchange Consideration allocated to such Presidio Security in<br \/>\naccordance with the Plan of Reorganization.<\/p>\n<p>         2.11    Merger Alternative.  If Tom Brown shall determine that the<br \/>\ntransaction described in this Article II will not have the legal effects<br \/>\ndescribed in the third sentence of Section 2.1, then the Exchange shall be<br \/>\nrecast as a merger to be effected under the laws of the State of Delaware (the<br \/>\n&#8220;Merger&#8221;), pursuant to which a subsidiary of Tom Brown shall be merged with and<br \/>\ninto Presidio, with Presidio to be the surviving corporation and a wholly-owned<br \/>\nsubsidiary of Tom Brown.  In such event, this Agreement shall constitute an<br \/>\nAgreement and Plan of Merger and the parties shall prepare and file all such<br \/>\ndocuments (including any Certificate of Merger) necessary to effect the Merger.<\/p>\n<p>                                  ARTICLE III<\/p>\n<p>                        CLOSING AND PRE-CLOSING ACTIONS<\/p>\n<p>         3.1     Time and Place of Closing.<\/p>\n<p>                 (a)      Consummation of the Exchange as contemplated by this<br \/>\n         Agreement (the &#8220;Closing&#8221;), shall, unless otherwise agreed to in<br \/>\n         writing by Tom Brown and Presidio, take place at the offices of<br \/>\n         Andrews &amp; Kurth L.L.P., located at 425 Lexington Avenue, New York, New<br \/>\n         York 10017 at 10:00 a.m., New York City time, on the fifth business<br \/>\n         day<\/p>\n<p>                                      -15-<br \/>\n   58<br \/>\n         following the date that the conditions specified in Article VIII have<br \/>\n         been satisfied, unless another time, date and place is agreed to by<br \/>\n         the parties.<\/p>\n<p>                 (b)      The date on which the Closing occurs is herein<br \/>\n         referred to as the &#8220;Closing Date&#8221;.<\/p>\n<p>         3.2     Adjustment to Common Share Value.  If at any time or from time<br \/>\nto time after the date of this Agreement and on or before the Closing Date, Tom<br \/>\nBrown shall (a) pay a dividend in Tom Brown Common Stock or make a distribution<br \/>\nin Tom Brown Common Stock (or in securities convertible into Tom Brown Common<br \/>\nStock), (b) subdivide the outstanding Tom Brown Common Stock, (c) combine the<br \/>\noutstanding Tom Brown Common Stock into a smaller number of shares of Tom Brown<br \/>\nCommon Stock, or (d) issue any shares of its capital stock or other securities<br \/>\nby reclassification of the Tom Brown Common Stock, then the Common Share Value<br \/>\n(or if necessary the securities comprising the Exchange Common Stock) in effect<br \/>\nat the time of the record date for such dividend or distribution or as of the<br \/>\neffective date of such subdivision, combination, or reclassification shall be<br \/>\nproportionately adjusted so that the aggregate number and kind of shares of<br \/>\nExchange Common Stock shall be the aggregate number and kind of shares of Tom<br \/>\nBrown Common Stock or other securities of Tom Brown which, if the Exchange<br \/>\nCommon Stock had been outstanding immediately prior to such time, the Exchange<br \/>\nCommon Stock would represent by virtue of such dividend, distribution,<br \/>\nsubdivision, combination or reclassification.<\/p>\n<p>                                   ARTICLE IV<\/p>\n<p>                                   COVENANTS<\/p>\n<p>         4.1     Access to Assets, Personnel, and Information.  From the date<br \/>\nof this Agreement until the Closing, Presidio shall afford to Tom Brown and its<br \/>\nrepresentatives, at Tom Brown&#8217;s sole risk and expense, full access to any of<br \/>\nthe assets, books, records (including files, Tax Returns, and accountants&#8217;<br \/>\nworkpapers), contracts, employees, representatives, and agents (including<br \/>\nattorneys, accountants, and independent engineers) and facilities (including<br \/>\noffice facilities) of the Presidio Parties, during normal business hours and<br \/>\nprovided that such access does not unreasonably interfere with the ongoing<br \/>\nbusiness or operations of any of the Presidio Parties.  Presidio shall upon<br \/>\nrequest furnish promptly to Tom Brown (at Tom Brown&#8217;s expense) a copy of any<br \/>\nfile, book, record, contract, or other written information concerning a<br \/>\nPresidio Party (or any of their respective assets) that is within the<br \/>\npossession or control of a Presidio Party.  During such period, Presidio will<br \/>\nmake available to a reasonable number of Tom Brown representatives adequate<br \/>\noffice space and facilities at the principal office facility of Presidio in<br \/>\nDenver, Colorado.<\/p>\n<p>         4.2     Confidentiality Obligations.  Notwithstanding anything in this<br \/>\nArticle IV to the contrary, Presidio shall not be obligated under the terms of<br \/>\nthis Article IV to disclose to Tom Brown or its representatives, or grant Tom<br \/>\nBrown or its representatives access to, information that is within Presidio&#8217;s<br \/>\npossession or control but subject to a valid and binding confidentiality<br \/>\nagreement with a third party without first obtaining the consent of such third<br \/>\nparty, and Presidio, to the extent reasonably requested by Tom Brown, will use<br \/>\nits reasonable efforts to obtain any such consent.<\/p>\n<p>                                      -16-<br \/>\n   59<br \/>\n          4.3      Indemnity Regarding Access.   Tom Brown agrees to indemnify,<br \/>\ndefend, and hold harmless each Presidio Party, their respective directors,<br \/>\nofficers, employees, agents, and representatives from and against any and all<br \/>\nclaims, liabilities, losses, costs, and expenses (including court costs,<br \/>\nexpenses of litigation and reasonable attorneys&#8217; fees) in connection with<br \/>\npersonal injuries to personnel of Tom Brown or its representatives, including<br \/>\ndeath or property damage arising out of or relating to the access to the<br \/>\nbusiness, property, and records afforded to Tom Brown.<\/p>\n<p>         4.4     Tom Brown to Vote for Plan of Reorganization.  Tom Brown shall<br \/>\nvote, or shall cause to be voted, all Presidio Securities beneficially owned by<br \/>\nTom Brown or any Affiliate thereof in favor of the Plan of Reorganization.<\/p>\n<p>         4.5     Petition Under the Bankruptcy Code.<\/p>\n<p>                 (a)      Each of the Presidio Parties (other than Presidio<br \/>\nWest Virginia) shall, on or before August 1, 1996, commence their respective<br \/>\nChapter 11 cases (together with Presidio West Virginia&#8217;s pending Chapter 11<br \/>\ncase, collectively, the &#8220;Reorganization Cases&#8221;).  If prior to the voluntary<br \/>\ncommencement of the Reorganization Cases by the Presidio Parties (other than<br \/>\nPresidio West Virginia) there should be commenced an involuntary case against<br \/>\nPresidio or Presidio Exploration, and such Presidio Party consents to the entry<br \/>\nof an order for relief in such involuntary case, then each of the Presidio<br \/>\nParties that are not subject to the involuntary case shall promptly commence a<br \/>\nReorganization Case.  Each of the foregoing voluntary filings or consents by<br \/>\nthe Presidio Parties (other than Presidio West Virginia) is hereinafter<br \/>\nreferred to as a &#8220;Bankruptcy Event&#8221;.<\/p>\n<p>                 (b)      Upon the occurrence of a Bankruptcy Event, the<br \/>\nPresidio Parties will file, or will cause to be filed, all pleadings, requests,<br \/>\nand other items and information required to be filed with the Bankruptcy Court<br \/>\nin a form reasonably acceptable to Tom Brown.  The Presidio Parties will use<br \/>\ntheir reasonable efforts to file the Plan of Reorganization and a Disclosure<br \/>\nStatement by no later than thirty (30) days following the occurrence of a<br \/>\nBankruptcy Event.  The Presidio Parties hereto shall use their reasonable<br \/>\nefforts to cause the Bankruptcy Court to confirm the Plan of Reorganization and<br \/>\napprove the Disclosure Statement and approve, authorize, and order assumption<br \/>\nof this Agreement and all other agreements contemplated by, or related to, this<br \/>\nAgreement.<\/p>\n<p>                 (c)      Not later than three (3) business days after the<br \/>\noccurrence of a Bankruptcy Event, Presidio shall file a motion in form and<br \/>\nsubstance reasonably acceptable to Tom Brown and seek a prompt hearing thereon<br \/>\nbefore the Bankruptcy Court for an order reasonably satisfactory in form and<br \/>\nsubstance to Tom Brown approving the provisions of Section 9.2 of this<br \/>\nAgreement (the &#8220;Initial Order&#8221;).<\/p>\n<p>                 (d)      Not later than three (3) business days after the<br \/>\noccurrence of a Bankruptcy Event, Presidio shall file a motion in form and<br \/>\nsubstance reasonably acceptable to Tom Brown and seek a prompt hearing thereon<br \/>\nbefore the Bankruptcy Court for an order establishing a claims bar date setting<br \/>\nthe last date for filing prepetition claims and administration claims (in each<br \/>\ncase, other than claims in respect of trade obligations for services,<br \/>\nmaterials, or goods incurred or arising in the ordinary course of business, the<br \/>\nBank Obligations, the Debt Obligations, or the Presidio Securities),<\/p>\n<p>                                      -17-<br \/>\n   60<br \/>\nincluding claims described in Section 510(b) of the Bankruptcy Code, which date<br \/>\nshall not be less than twenty (20) days prior to the Confirmation Date (the<br \/>\n&#8220;Bar Date Order&#8221;).<\/p>\n<p>                 (e)      The parties acknowledge that Presidio West Virginia<br \/>\ncurrently has its Reorganization Case pending and that notwithstanding the<br \/>\nexecution and delivery of this Agreement by Presidio West Virginia or any<br \/>\nprovision contained herein to the contrary, this Agreement shall not be<br \/>\neffective as to Presidio West Virginia until such time as the Bankruptcy Court<br \/>\nshall have entered an order authorizing Presidio West Virginia to execute and<br \/>\ndeliver this Agreement.  After the date of this Agreement, Presidio shall cause<br \/>\nPresidio West Virginia to promptly seek entry of an order of the Bankruptcy<br \/>\nCourt in Presidio West Virginia&#8217;s Reorganization Case approving Presidio West<br \/>\nVirginia&#8217;s execution and delivery of this Agreement.<\/p>\n<p>         4.6     Preparation of Disclosure Statement.<\/p>\n<p>                 (a)      Prior to the date of this Agreement, the parties<br \/>\n         hereto have prepared the Disclosure Statement in a form necessary to<br \/>\n         obtain lawful and enforceable acceptances or rejections of the Plan of<br \/>\n         Reorganization from the appropriate impaired classes of creditors and<br \/>\n         equity securityholders (the &#8220;Presidio Securityholders&#8221;) and to<br \/>\n         implement and to obtain a Final Order confirming the Plan of<br \/>\n         Reorganization and to cause the issuance and distribution of the<br \/>\n         Exchange Common Stock in accordance with the Plan of Reorganization to<br \/>\n         be effected in compliance with all applicable provisions of the<br \/>\n         Bankruptcy Code, the 1933 Act, the 1934 Act, and any other federal or<br \/>\n         state law relating to the transactions contemplated by this Agreement.<\/p>\n<p>                 (b)      The solicitation of acceptances or rejections of the<br \/>\n         Plan of Reorganization shall be conducted in accordance with the<br \/>\n         requirements of Chapter 11 of the Bankruptcy Code (including Sections<br \/>\n         1125 and 1145 thereof), the attendant bankruptcy rules of practice,<br \/>\n         and those federal or state securities laws which are not preempted or<br \/>\n         rendered moot by the applicability of the Bankruptcy Code and<br \/>\n         attendant bankruptcy rules of practice.<\/p>\n<p>                 (c)      The parties heretofore have furnished and will<br \/>\n         continue to furnish to each other such information with respect to<br \/>\n         themselves, their respective associates and Affiliates and their<br \/>\n         respective assets and businesses (including such separate financial<br \/>\n         information of or relating to each party hereto) as shall be required<br \/>\n         for the Disclosure Statement and all additional filings as required by<br \/>\n         the Bankruptcy Code, the 1933 Act, the 1934 Act, state securities<br \/>\n         laws, the rules and regulations under such laws, and the rules and<br \/>\n         regulations of any applicable securities exchanges.  All information<br \/>\n         that may be hereafter included in the Disclosure Statement and such<br \/>\n         additional filings, as applicable, relating to Tom Brown shall be<br \/>\n         approved by Tom Brown and all information that may be hereafter<br \/>\n         included in the Disclosure Statement and such additional filings, as<br \/>\n         applicable, relating to the Presidio Parties shall be approved by<br \/>\n         Presidio.<\/p>\n<p>                                      -18-<br \/>\n   61<br \/>\n         4.7      Disclosure Statement.<\/p>\n<p>                 (a)      Presidio hereby covenants and agrees with Tom Brown<br \/>\n         that the Disclosure Statement (at the time it is first mailed to the<br \/>\n         Presidio Securityholders and at the Closing) will not contain an<br \/>\n         untrue statement of a material fact or omit to state a material fact<br \/>\n         required to be stated therein or necessary in order to make the<br \/>\n         statements therein in light of the circumstances under which they are<br \/>\n         made, not misleading (provided, however, that this clause shall only<br \/>\n         apply to information contained in the Disclosure Statement that was<br \/>\n         supplied by Presidio specifically for inclusion therein).  If, at any<br \/>\n         time prior to the Closing, any event with respect to Presidio, or with<br \/>\n         respect to other information supplied by Presidio specifically for<br \/>\n         inclusion in the Disclosure Statement occurs and such event is<br \/>\n         required by the Bankruptcy Code to be described in an amendment or<br \/>\n         supplement to the Disclosure Statement, then Presidio shall promptly<br \/>\n         notify Tom Brown of such occurrence and the parties shall cooperate<br \/>\n         with each other in the preparation and filing and obtaining Bankruptcy<br \/>\n         Court approval of such amendment or supplement, and, after obtaining<br \/>\n         Bankruptcy Court approval thereof, its dissemination.<\/p>\n<p>                 (b)      Tom Brown hereby covenants and agrees with Presidio<br \/>\n         that the Disclosure Statement (at the time it is first mailed to the<br \/>\n         Presidio Securityholders, and at the Closing) will not contain an<br \/>\n         untrue statement of a material fact or omit to state a material fact<br \/>\n         required to be stated therein or necessary in order to make the<br \/>\n         statements therein, in light of the circumstances under which they are<br \/>\n         made, not misleading (provided, however, that this clause shall only<br \/>\n         apply to information contained in the Disclosure Statement that was<br \/>\n         supplied by Tom Brown specifically for inclusion therein).  If, at any<br \/>\n         time prior to the Closing, any event with respect to Tom Brown, or<br \/>\n         with respect to other information supplied by Tom Brown specifically<br \/>\n         for inclusion in the Disclosure Statement occurs and such event is<br \/>\n         required by the Bankruptcy Code to be described in an amendment or<br \/>\n         supplement to the Disclosure Statement, then Tom Brown shall promptly<br \/>\n         notify Presidio of such occurrence and the parties shall cooperate<br \/>\n         with each other in the preparation and filing and obtaining Bankruptcy<br \/>\n         Court approval of such amendment or supplement, and, after obtaining<br \/>\n         Bankruptcy Court approval thereof, its dissemination.<\/p>\n<p>                 (c)      No amendment or supplement to the Disclosure<br \/>\n         Statement will be filed or otherwise disseminated to the Presidio<br \/>\n         Securityholders without the approval of both Tom Brown and Presidio.<\/p>\n<p>         4.8     Solicitation of Presidio Securityholders.  Presidio will use<br \/>\nits good faith efforts to cause to be solicited from the Presidio<br \/>\nSecurityholders their acceptance of the Plan of Reorganization, and except as<br \/>\nthe board of directors of Presidio may otherwise determine appropriate in order<br \/>\nto properly discharge its fiduciary duties, Presidio will recommend acceptance<br \/>\nof the Plan of Reorganization to the Presidio Securityholders; provided,<br \/>\nhowever, that no solicitation of the Presidio Securityholders with respect to<br \/>\nthe Plan of Reorganization shall be made until:<\/p>\n<p>                 (a)      The Bankruptcy Court has entered an order determining<br \/>\n         and finding that (i) the Disclosure Statement complies with the<br \/>\n         provisions of Section 1125 of the Bankruptcy<\/p>\n<p>                                      -19-<br \/>\n   62<br \/>\n         Code, (ii) the solicitation of the Presidio Securityholders with<br \/>\n         respect to their approval of the Plan of Reorganization may be made by<br \/>\n         means of the Disclosure Statement pursuant to Section 1125 of the<br \/>\n         Bankruptcy Code, and (iii) each of Tom Brown and Presidio will be<br \/>\n         afforded the protection granted by Section 1125(e) of the Bankruptcy<br \/>\n         Code with respect to such solicitation; and<\/p>\n<p>                 (b)      The written opinion of Presidio&#8217;s investment bankers<br \/>\n         or financial advisors referred to in Section 5.18 shall have been<br \/>\n         reconfirmed and shall not have been withdrawn or revised in any<br \/>\n         material respect.<\/p>\n<p>         4.9     Cooperation; Notification of Certain Changes.  The parties<br \/>\nhereto will cooperate and use their reasonable efforts to (a) obtain (and will<br \/>\nprepare all registrations, filings, applications, requests, and notices<br \/>\nrequired to obtain) all permits, approvals, and consents of governmental bodies<br \/>\nor third parties which may be necessary to consummate the transactions<br \/>\ncontemplated by this Agreement, including but not limited to all filings<br \/>\nrequired under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as<br \/>\namended from time to time (the &#8220;Hart Scott Act&#8221;), and the rules and regulations<br \/>\npromulgated thereunder and (b) to cure existing title defects.  The parties<br \/>\nhereto will otherwise cooperate and provide each other with such assistance as<br \/>\nmay reasonably be required to perform or satisfy all covenants and conditions<br \/>\nrequired to be performed or satisfied hereunder.  Each party will promptly<br \/>\nnotify the other parties hereto of any event of which they obtain knowledge<br \/>\nwhich has or might reasonably be expected to have a material adverse effect on<br \/>\ntheir respective businesses or which, if known on the date of this Agreement,<br \/>\nwould have been required to be disclosed pursuant to this Agreement.<\/p>\n<p>         4.10    Listing Application.  On or before the date of filing of the<br \/>\nDisclosure Statement, Tom Brown will file a listing application with NASDAQ for<br \/>\nthe approval of the listing thereon of the Exchange Common Stock.<\/p>\n<p>         4.11    Third Party Consents.  Promptly after the commencement of a<br \/>\ncase under the Bankruptcy Code as contemplated herein, Presidio will use its<br \/>\nreasonable efforts to obtain each Third Party Consent, or if not otherwise<br \/>\nobtained, to file, or cause to be filed, all pleadings, requests, and other<br \/>\nitems and information required to be filed with, the Bankruptcy Court (to the<br \/>\nextent applicable), seeking to obtain a Final Order or determination from the<br \/>\nBankruptcy Court establishing that such Third Party Consent is not applicable<br \/>\nto or necessary in connection with the transactions contemplated by this<br \/>\nAgreement.  As used in this Agreement, &#8220;Third Party Consent&#8221; means any<br \/>\nthird-party consents relating to the Oil and Gas Assets that would be required<br \/>\nin respect of the transactions contemplated by this Agreement.<\/p>\n<p>         4.12    Agreements of Affiliates.  At least thirty (30) days prior to<br \/>\nthe Closing Date, Presidio shall cause to be prepared (and updated from time to<br \/>\ntime as may be necessary) and delivered to Tom Brown a list identifying all<br \/>\npersons who, at that time, may be deemed to be &#8220;affiliates&#8221; of Presidio as that<br \/>\nterm is used in paragraph (a) of Section 1145 of the Bankruptcy Code and<br \/>\nparagraphs (c) and (d) of Rule 145 under the 1933 Act.  Presidio shall use its<br \/>\nreasonable efforts to cause each person who is identified as an affiliate of<br \/>\nPresidio in such list to execute and deliver to Tom Brown, on or prior to the<br \/>\nClosing Date, a written agreement, in the form attached hereto as Exhibit E.<br \/>\nTom Brown<\/p>\n<p>                                      -20-<br \/>\n   63<br \/>\nshall be entitled to place legends as specified in such agreements on the<br \/>\ncertificates representing any Exchange Common Stock to be distributed to such<br \/>\npersons in the Exchange.<\/p>\n<p>         4.13    Amendment to Plan.  Without the prior consent of Tom Brown,<br \/>\nwhich shall not be unreasonably withheld, no Presidio Party shall amend the<br \/>\nterms and provisions of the Plan of Reorganization.<\/p>\n<p>         4.14    Costs and Expenses.  Except as set forth in Section 9.2(b),<br \/>\neach party to this Agreement will be responsible for and will pay all costs,<br \/>\nfees, and expenses incurred by such party in connection with the preparation,<br \/>\nnegotiation, and execution of this Agreement, the Plan of Reorganization, the<br \/>\nDisclosure Statement and all other documents and instruments contemplated<br \/>\nherein, including:<\/p>\n<p>                 (a)      all fees, costs, and expenses of its counsel,<br \/>\n         engineers, accountants, financial advisors, and others engaged by such<br \/>\n         party; and<\/p>\n<p>                 (b)      all fees, costs and expenses incurred by such party<br \/>\n         in connection with filings made by it relating to the transactions<br \/>\n         contemplated by this Agreement under the Hart Scott Act, the 1933 Act,<br \/>\n         the 1934 Act, the Bankruptcy Code, or any other federal or state laws,<br \/>\n         rules, and regulations.<\/p>\n<p>         4.15    New D&amp;O Insurance.<\/p>\n<p>                 (a)      At the Closing, Tom Brown shall take all reasonable<br \/>\n         actions necessary to acquire or to cause (which shall include the<br \/>\n         payment of the required premium in the amount described in the policy<br \/>\n         attached to the letter identified below to the extent not previously<br \/>\n         paid) Presidio to acquire for the benefit of each of the Directors and<br \/>\n         Officers the policy of directors and officers liability insurance in<br \/>\n         the form attached to that certain letter of even date herewith from<br \/>\n         Presidio to Tom Brown and identified therein as being provided<br \/>\n         pursuant to this Section 4.15 (the &#8220;New D&amp;O Insurance&#8221;).  For the time<br \/>\n         period commencing as of the Closing Date and ending as of the sixth<br \/>\n         anniversary of the Closing Date, Tom Brown shall take all reasonable<br \/>\n         actions required by the terms of the New D&amp;O Insurance policy<br \/>\n         necessary to keep in full force and effect the New D&amp;O Insurance.<\/p>\n<p>                 (b)      From and after the Closing neither Tom Brown nor any<br \/>\n         Presidio Party shall take any action to modify any provision contained<br \/>\n         in the certificate of incorporation or bylaws of any Presidio Party or<br \/>\n         any contract or agreement which exculpates, limits, or restricts the<br \/>\n         liability of any of the Directors and Officers to any Presidio Party;<br \/>\n         any Presidio Securityholder or any other person arising out of or<br \/>\n         pertaining to acts or omissions, by such person in his capacity as a<br \/>\n         director, officer, employee or agent of a Presidio Party.<\/p>\n<p>                 (c)      On or before the Closing, Presidio shall (i) use its<br \/>\n         reasonable efforts to obtain waivers and releases effective as of the<br \/>\n         Closing, in form and substance reasonably satisfactory to Tom Brown,<br \/>\n         of all rights to indemnity which may exist in favor of any officers or<br \/>\n         directors of any of the Presidio Parties (and from any other persons<br \/>\n         who may be<\/p>\n<p>                                      -21-<br \/>\n   64<br \/>\n         entitled to indemnity from any of the Presidio Parties) under the<br \/>\n         respective charters, by-laws or agreements of any of the Presidio<br \/>\n         Parties or under applicable law or (ii) obtain a Final Order of the<br \/>\n         Bankruptcy Court which discharges all such obligations of indemnity.<\/p>\n<p>                 (d)      From and after the Closing, Tom Brown shall use its<br \/>\n         best efforts or shall take all actions necessary to cause Presidio to<br \/>\n         use its best efforts to give each Director and Officer notice (within<br \/>\n         five (5) business days) of the assertion or threatened (in writing)<br \/>\n         assertion of any claims, actions, suits, or proceedings that name or<br \/>\n         threaten (in writing) to name any Director or Officer as a party or<br \/>\n         which relates to acts or omissions by any such person in his capacity<br \/>\n         as a director, officer, employee or agent of a Presidio Party.<\/p>\n<p>                 (e)      The provisions of this Section 4.15 are intended to<br \/>\n         be for the benefit of, and shall be enforceable by, the parties hereto<br \/>\n         and each of the Directors and Officers and their respective heirs and<br \/>\n         representatives.<\/p>\n<p>         4.16    Information Kept Confidential.  Except as otherwise<br \/>\ncontemplated in this Agreement, Tom Brown shall hold in strict confidence all<br \/>\naspects of the transactions contemplated by this Agreement and all information<br \/>\nand data concerning the Oil and Gas Assets which has been obtained from<br \/>\nPresidio in connection with the transactions contemplated by this Agreement in<br \/>\naccordance with the terms and provisions of the Confidentiality Agreement,<br \/>\nwhich Confidentiality Agreement is hereby ratified and adopted by the parties<br \/>\nhereto and incorporated by reference herein.<\/p>\n<p>         4.17    Pre-Closing Action.   Presidio and Tom Brown shall use all<br \/>\nreasonable efforts to cause all of the conditions precedent to the consummation<br \/>\nof the transactions contemplated by this Agreement applicable to each of them<br \/>\nto be met as promptly as possible and to take all such other actions as may be<br \/>\nreasonably necessary to effect the consummation of the transactions<br \/>\ncontemplated by this Agreement.<\/p>\n<p>         4.18    Public Announcements.   Each party hereto shall consult with<br \/>\nthe other party hereto prior to any public announcement by such party regarding<br \/>\nthe existence of this Agreement, the contents hereof or the transactions<br \/>\ncontemplated hereby; provided, however, the foregoing shall not restrict<br \/>\ndisclosures by Tom Brown or Presidio made in order to comply with applicable<br \/>\nsecurities or other laws or made in order to comply with judicial decrees or<br \/>\norders or existing loan or other agreements binding such party (or its<br \/>\nAffiliates), as determined in such party&#8217;s discretion.<\/p>\n<p>         4.19    Conduct of Presidio&#8217;s Business Pending Closing.  Except as<br \/>\notherwise contemplated by this Agreement, Presidio covenants and agrees with<br \/>\nTom Brown that, from the date of this Agreement until the Closing, each<br \/>\nPresidio Party will conduct its business only in the ordinary and usual course<br \/>\nconsistent with past practices.  Notwithstanding the preceding sentence,<br \/>\nPresidio covenants and agrees with Tom Brown that, except as otherwise<br \/>\ncontemplated in this Agreement or the Plan of Reorganization, from the date of<br \/>\nthis Agreement until the Closing, without the prior written consent of Tom<br \/>\nBrown:<\/p>\n<p>                 (a)      No Presidio Party will engage in any type of business<br \/>\n         in which it is not engaged as of the date of this Agreement;<\/p>\n<p>                                      -22-<br \/>\n   65<br \/>\n                 (b)      No Presidio Party will (i) amend its certificate or<br \/>\n         articles of incorporation or bylaws, (ii) split, combine, or<br \/>\n         reclassify any of its outstanding capital stock or other securities or<br \/>\n         make any other changes in its capital structure, (iii) except for<br \/>\n         dividends or distributions made to another Presidio Party, declare,<br \/>\n         set aside, or pay any dividends or other distributions (whether<br \/>\n         payable in cash, property, or securities) with respect to its capital<br \/>\n         stock, (iv) issue, sell, or agree to issue or sell any securities,<br \/>\n         including its capital stock, any rights, options, or warrants to<br \/>\n         acquire its capital stock, or securities convertible into or<br \/>\n         exchangeable or exercisable for its capital stock (other than shares<br \/>\n         of Presidio Common Stock issued pursuant to the exercise of any<br \/>\n         Presidio Options or Warrants), (v) purchase, cancel, retire, redeem,<br \/>\n         or otherwise acquire any of its outstanding capital stock or other<br \/>\n         securities, (vi) merge or consolidate with, or transfer all or<br \/>\n         substantially all of its assets to, another corporation or other<br \/>\n         business entity, (vii) liquidate, wind-up, or dissolve (or suffer any<br \/>\n         liquidation or dissolution), or (viii) enter into any contract,<br \/>\n         agreement, commitment, or arrangement with respect to any of the<br \/>\n         foregoing;<\/p>\n<p>                 (c)      Except as set forth in Schedule 4.19, no Presidio<br \/>\n         Party will (i) acquire any corporation, partnership, or other business<br \/>\n         entity or any interest therein (other than interests in joint<br \/>\n         ventures, joint operation or ownership arrangements, or tax<br \/>\n         partnerships acquired in the ordinary course of business), (ii) sell,<br \/>\n         lease or sublease, transfer, or otherwise dispose of or mortgage,<br \/>\n         pledge, or otherwise encumber or grant any rights or interests with<br \/>\n         respect to any Oil and Gas Assets that, individually or in the<br \/>\n         aggregate, were assigned a value in the Reserve Report of $100,000 or<br \/>\n         more or any other assets that, individually or in the aggregate, have<br \/>\n         a value at the time of such sale, lease, sublease, transfer, or<br \/>\n         disposition of $100,000 or more (except that this clause shall not<br \/>\n         apply to the sale of severed oil, gas and other minerals produced and<br \/>\n         sold in the ordinary course of business or the expenditure of the<br \/>\n         Presidio Parties&#8217; cash and cash items in the ordinary course of<br \/>\n         business), (iii) farm-out any Oil and Gas Assets or interest therein,<br \/>\n         (iv) sell, transfer, or otherwise dispose of or mortgage, pledge, or<br \/>\n         otherwise encumber any securities of any other person, (v) enter into<br \/>\n         any agreement requiring a payment or expenditure thereunder by a<br \/>\n         Presidio Party in excess of $100,000 and not terminable by a Presidio<br \/>\n         Party upon notice of thirty (30) days or less and without penalty or<br \/>\n         other obligation, (vi) enter into any transaction (x) pursuant to<br \/>\n         which a Presidio Party will make a payment or incur an expenditure in<br \/>\n         excess of $100,000 or (y) not in the ordinary course of business and<br \/>\n         not contemplated by this Agreement, (vii) agree with any person to<br \/>\n         limit or otherwise restrict in any manner the ability of a Presidio<br \/>\n         Party to compete or otherwise conduct its business, or (viii) enter<br \/>\n         into any contract, agreement, commitment, or arrangement with respect<br \/>\n         to any of the foregoing;<\/p>\n<p>                 (d)      No Presidio Party shall make any payments in respect<br \/>\n         of the Debt Obligations; provided, however, that the Presidio Parties<br \/>\n         may make interest payments accruing on the Subordinated Gas Indexed<br \/>\n         Notes not to exceed $8,000 per quarter;<\/p>\n<p>                 (e)      No Presidio Party will (i) except for loans extended<br \/>\n         by another Presidio Party, incur any additional indebtedness for<br \/>\n         borrowed money or any other obligation or liability (other than<br \/>\n         interest accruing on existing indebtedness and liabilities incurred in<br \/>\n         the ordinary course of business and consistent with past practices),<br \/>\n         (ii) assume, endorse (other than<\/p>\n<p>                                      -23-<br \/>\n   66<br \/>\n         endorsements of negotiable instruments in the ordinary course of<br \/>\n         business), guarantee, or otherwise become liable or responsible<br \/>\n         (whether directly, contingently, or otherwise) for the liabilities or<br \/>\n         obligations of any person not a Presidio Party, (iii) make any<br \/>\n         material loans, advances or capital contributions to, or investments<br \/>\n         in any person (other than loans or advances in the ordinary course of<br \/>\n         business and consistent with past practices, advances for business<br \/>\n         expenses made to officers and employees of such Presidio Party,<br \/>\n         short-term investments made pursuant to customary cash management<br \/>\n         systems of such Presidio Party in the ordinary course and consistent<br \/>\n         with past practices and loans, advances, capital contributions to, or<br \/>\n         investments in, another Presidio Party) or (iv) enter into any<br \/>\n         contract, agreement, commitment, or arrangement with respect to any of<br \/>\n         the foregoing;<\/p>\n<p>                 (f)      Each Presidio Party will operate, maintain, and<br \/>\n         otherwise deal with the Oil and Gas Assets in accordance with good and<br \/>\n         prudent oil and gas field practices (including the making of all<br \/>\n         appropriate repairs, renewals, and replacements of equipment<br \/>\n         associated therewith) and in material compliance with all applicable<br \/>\n         oil and gas leases and other contracts or agreements and all<br \/>\n         applicable laws, rules, and regulations;<\/p>\n<p>                 (g)      No Presidio Party will pay or incur drilling or other<br \/>\n         capital expenditures in excess of $100,000 with respect to any well<br \/>\n         (other than in accordance with the expenditures listed in Schedule<br \/>\n         4.19 or, under emergency circumstances, expenditures necessary for the<br \/>\n         preservation or protection of a Presidio Party&#8217;s assets or the<br \/>\n         preservation or protection of the public safety or health);<\/p>\n<p>                 (h)      No Presidio Party shall voluntarily resign, transfer<br \/>\n         or otherwise relinquish any right it has as of the date of this<br \/>\n         Agreement, as operator of any of the Oil and Gas Assets;<\/p>\n<p>                 (i)      No Presidio Party will (i) enter into, or otherwise<br \/>\n         become liable or obligated under or pursuant to (x) any employee<br \/>\n         benefit, pension, or other plan (whether or nor subject to ERISA), (y)<br \/>\n         any stock option, stock purchase, incentive, or deferred compensation<br \/>\n         plans or arrangements or fringe benefit plan, or (z) any consulting,<br \/>\n         employment, severance, termination, or similar agreement with any<br \/>\n         person, except for the Existing Plans, (ii) hire any key employee,<br \/>\n         (iii) grant, or otherwise become liable for or obligated to pay, any<br \/>\n         severance or termination payments, bonuses, or increases in<br \/>\n         compensation or benefits to, or forgive any indebtedness of, any<br \/>\n         director, officer, employee, or consultant (other than payments,<br \/>\n         bonuses or increases in compensation or benefits or forgiveness of<br \/>\n         indebtedness that are required by the terms of the Existing Plans as<br \/>\n         in effect as of the date of this Agreement), or (iv) enter into any<br \/>\n         contract, agreement, commitment, or arrangement to do any of the<br \/>\n         foregoing;<\/p>\n<p>                 (j)      Presidio will keep and maintain accurate consolidated<br \/>\n         books, records, and accounts in accordance with GAAP;<\/p>\n<p>                 (k)      Each Presidio Party, as appropriate, will (i) pay all<br \/>\n         Taxes, assessments, and other governmental charges imposed upon any of<br \/>\n         its assets or with respect to its franchises, business, income, or<br \/>\n         assets before any penalty or interest accrues thereon, (ii) pay all<br \/>\n         claims (including claims for labor, services, materials, and supplies)<br \/>\n         that have become due and<\/p>\n<p>                                      -24-<br \/>\n   67<br \/>\n         payable and which by law have or may become a Lien upon any of its<br \/>\n         assets prior to the time when any penalty or fine shall be incurred<br \/>\n         with respect thereto or any such Lien shall be imposed thereon, and<br \/>\n         (iii) comply in all material respects with the requirements of all<br \/>\n         applicable laws, rules, regulations, and orders of any Governmental<br \/>\n         Authority (provided, however, that a Presidio Party may contest the<br \/>\n         imposition of any Taxes, assessments, and other governmental charges,<br \/>\n         any such claim, or the requirements of any applicable law, rule,<br \/>\n         regulation, or order if done so in good faith by appropriate<br \/>\n         proceedings and if adequate reserves are established in accordance<br \/>\n         with GAAP or as may be determined as sufficient by Presidio&#8217;s board of<br \/>\n         directors);<\/p>\n<p>                 (l)      Each Presidio Party will use its reasonable efforts<br \/>\n         to maintain in full force and effect the policies or binders of<br \/>\n         insurance currently maintained by it and shall promptly notify Tom<br \/>\n         Brown if any are not so maintained;<\/p>\n<p>                 (m)      Each Presidio Party will use its reasonable efforts<br \/>\n         to preserve intact its assets and business organization and to<br \/>\n         preserve the goodwill of those having business relationships with it;<br \/>\n         provided, however, that a Presidio Party shall not be required to make<br \/>\n         any payments (other than as may be contractually committed and due) or<br \/>\n         enter into or amend any contractual arrangements to satisfy the<br \/>\n         foregoing obligation; and<\/p>\n<p>                 (n)      Each Presidio Party will at all times preserve and<br \/>\n         keep in full force and effect its corporate existence and rights and<br \/>\n         franchises material to its performance under this Agreement.<\/p>\n<p>         4.20    No Solicitation.<\/p>\n<p>                 (a)      From and after the date of this Agreement, no<br \/>\n         Presidio Party will (and each Presidio Party will use its reasonable<br \/>\n         efforts to cause the Presidio Representatives not to), directly or<br \/>\n         indirectly, make, solicit, initiate, engage or participate in<br \/>\n         discussions or negotiations with or provide information to, any person<br \/>\n         (other than Tom Brown or any of its representatives) or enter into any<br \/>\n         agreement or agreement in principle, or announce any intention to do<br \/>\n         any of the foregoing, with respect to any offer or proposal to acquire<br \/>\n         all or any part of the outstanding capital securities of any Presidio<br \/>\n         Party or all or any material portion of the assets or business of a<br \/>\n         Presidio Party, whether by merger, purchase of assets, tender offer,<br \/>\n         exchange offer, business combination, sale of substantial assets, sale<br \/>\n         of securities, liquidation, dissolution, or otherwise (an &#8220;Alternative<br \/>\n         Transaction&#8221;), other than the transactions contemplated by this<br \/>\n         Agreement.<\/p>\n<p>                 (b)      Promptly following the execution of this Agreement,<br \/>\n         each Presidio Party will (and will cause the Presidio Representatives<br \/>\n         to) terminate any existing activities, discussions, or negotiations<br \/>\n         with third parties (other than Tom Brown) with respect to any possible<br \/>\n         Alternative Transaction.<\/p>\n<p>                 (c)      Notwithstanding the provisions of Section 4.20(a) and<br \/>\n         Section 4.20(b), (i) a Presidio Party and the Presidio Representatives<br \/>\n         may furnish information to and negotiate and<\/p>\n<p>                                      -25-<br \/>\n   68<br \/>\n         have discussions with any person who has made an unsolicited bona fide<br \/>\n         proposal in regard to an Alternative Transaction if the board of<br \/>\n         directors of Presidio determines, after consultation with its outside<br \/>\n         legal counsel, that the failure to furnish such information to or<br \/>\n         negotiate or have discussions with such person conflicts with the<br \/>\n         proper discharge of their fiduciary duties and (ii) the board of<br \/>\n         directors of Presidio shall not be prohibited from taking and publicly<br \/>\n         disclosing a position with respect to an Alternative Transaction if<br \/>\n         required to do so pursuant to Rule 14d-9 and Rule 14e-2 under the 1934<br \/>\n         Act or from making such disclosure which, in the judgment of the board<br \/>\n         of directors of Presidio, may be required under applicable law.<br \/>\n         Presidio will promptly notify Tom Brown in the event of any<br \/>\n         discussion, negotiation, proposal or offer of the type referred to<br \/>\n         above or any decision to furnish information or take any other action<br \/>\n         referred to in this Section 4.20(c).<\/p>\n<p>         4.21    Employees.  Within sixty (60) days of the date of this<br \/>\nAgreement, Tom Brown shall provide Presidio with a list of the employees of the<br \/>\nPresidio Parties who as of that date, Tom Brown intends not to be employed<br \/>\nafter the Closing by either Tom Brown, Presidio, or an Affiliate thereof,<br \/>\ntogether with the proposed date that each such employee&#8217;s employment will be<br \/>\nterminated.  From and after such date, Tom Brown shall use its reasonable<br \/>\nefforts to provide Presidio with one or more supplements to such list and, at<br \/>\nleast thirty (30) days prior to the Closing, Tom Brown shall use its reasonable<br \/>\nefforts to provide Presidio with a final supplement to such list.  The<br \/>\nprovisions of this Section 4.21 are not intended to create and shall not be<br \/>\nconstrued as creating any right in favor of any such employee of the Presidio<br \/>\nParties, including any continuing right of employment on the part of any<br \/>\nemployee who is not named on such list or supplement thereto.<\/p>\n<p>         4.22    Severance Plan and Agreements.  Tom Brown shall take all<br \/>\nactions necessary to cause (which, if necessary, shall include making<br \/>\nadditional capital contributions to Presidio consisting of cash or shares of<br \/>\nTom Brown Common Stock, as appropriate) Presidio to pay at the Closing to all<br \/>\nemployees who are either named in the list or any supplement thereto to be<br \/>\nprovided pursuant to Section 4.21 or whose employment is otherwise terminated<br \/>\nat Closing, all amounts which such employees would be due (at or within thirty<br \/>\n(30) days of the time of their termination of employment) under the Severance<br \/>\nPlan and Key Employee Severance Agreements set forth in Schedule 4.22,<br \/>\nincluding all amendments and modifications thereto (collectively, the<br \/>\n&#8220;Severance Plan and Agreements&#8221;).  From and after the Closing, Tom Brown shall<br \/>\ntake all actions necessary to cause (which, if necessary, shall include making<br \/>\nadditional capital contributions to Presidio consisting of cash or shares of<br \/>\nTom Brown Common Stock, as appropriate) Presidio to assume and make all other<br \/>\npayments, and to assume and provide all benefits, required to be paid or<br \/>\nprovided to the employees and officers of the Presidio Parties in accordance<br \/>\nwith the provisions of the Severance Plan and Agreements.  Tom Brown hereby<br \/>\nacknowledges that the obligations under the Key Employee Severance Agreements<br \/>\nset forth in Schedule 4.22 include the obligation arising under Section 2<br \/>\nthereof to provide the rights and benefits described in Section 3 thereof to<br \/>\nany such employee whose employment is terminated at any time within two years<br \/>\nfollowing the Closing Date.  Tom Brown shall take all actions necessary to<br \/>\ncause Presidio to not amend or modify the terms and provisions of the Severance<br \/>\nPlan and Agreements without the prior consent of the beneficiaries or<br \/>\nbeneficiary, as applicable, of such Severance Plan and Agreements.  Tom Brown<br \/>\nshall take all actions necessary to cause (which, if necessary, shall include<br \/>\nmaking additional cash capital contributions to Presidio) Presidio to provide<br \/>\ninsurance coverage for the time period required under<\/p>\n<p>                                      -26-<br \/>\n   69<br \/>\nthe Severance Plan and Agreements, under one or more insurance plans providing<br \/>\nsubstantially comparable benefits to those provided under Presidio&#8217;s current<br \/>\ninsurance plans and at no employee cost, to all employees of Presidio who are<br \/>\nentitled to such benefits under the Severance Plan and Agreements.  Nothing in<br \/>\nthis Section 4.22 shall be construed to limit the right of any employee to any<br \/>\nbenefits under the Consolidated Omnibus Budget Reconciliation Act of 1985, as<br \/>\namended.<\/p>\n<p>         4.23    Presidio ESOP.  Prior to the Closing, Presidio shall terminate<br \/>\nthe Employee Stock Ownership Plan of Presidio Oil Company (the &#8220;ESOP&#8221;), cause<br \/>\nall current participants in the ESOP to become 100% vested in their accounts<br \/>\nunder the ESOP, and file an application for a favorable determination letter<br \/>\nwith the Internal Revenue Service that the termination of the ESOP does not<br \/>\nadversely affect the qualification of the ESOP.  At the Closing, Presidio shall<br \/>\ncause the ESOP accounts (then consisting of Exchange Common Stock) to be<br \/>\ndistributed to the participants and beneficiaries pursuant to the terms of the<br \/>\nESOP.<\/p>\n<p>         4.24    Presidio 401K.  Subsequent to the Closing, Tom Brown may cause<br \/>\nPresidio to terminate the Presidio Oil Company 401k Plan (the &#8220;401k Plan&#8221;) or<br \/>\nmerge the 401k Plan into another qualified plan of Tom Brown.  From and after<br \/>\nthe Closing, Tom Brown shall take all actions necessary to cause Presidio to<br \/>\ncause each employee of a Presidio Party who is not employed by Tom Brown or an<br \/>\nAffiliate thereof after the Closing or any such employee who is employed by Tom<br \/>\nBrown or an Affiliate thereof after the Closing but whose employment is<br \/>\nsubsequently terminated to receive a distribution of all benefits under the<br \/>\n401k Plan of such person as soon after such termination of employment as is<br \/>\nadministratively possible.<\/p>\n<p>         4.25    Other Plans.  Except to the extent already provided in Section<br \/>\n4.22, at the Closing, Tom Brown shall take all actions necessary to cause<br \/>\n(which, if necessary, shall include making additional cash contributions to<br \/>\nPresidio) Presidio to pay at the Closing to the employees and officers of the<br \/>\nPresidio Parties all amounts which such employees and officers would be due (at<br \/>\nor within thirty (30) days of the time of their termination of employment) in<br \/>\naccordance with the provisions of the Employee Benefit Plans.  Except to the<br \/>\nextent already provided in Sections 4.22, 4.23 and 4.24, from and after the<br \/>\nClosing, Tom Brown shall take all actions necessary to cause (which, if<br \/>\nnecessary, shall include making additional cash capital contributions to<br \/>\nPresidio) Presidio to assume and make all vested payments, and provide all<br \/>\nbenefits, required to be paid or provided to the employees and officers of the<br \/>\nPresidio Parties in accordance with the provisions of the Employee Benefit<br \/>\nPlans.<\/p>\n<p>         4.26    Letters of Credit.  At the Closing, Tom Brown shall or shall<br \/>\ncause Presidio to have issued by a commercial bank or banks a substitute letter<br \/>\nof credit for each of the letters of credit set forth in Schedule 4.26 in form<br \/>\nand substance acceptable to each of the beneficiaries of each such letter of<br \/>\ncredit.<\/p>\n<p>         4.27    Certain Tom Brown Transactions.  Except as otherwise<br \/>\ncontemplated by this Agreement, Tom Brown covenants and agrees with Presidio<br \/>\nthat, from the date of this Agreement until the Closing, Tom Brown and its<br \/>\nAffiliates who are controlled by it will, taken as a whole, remain primarily<br \/>\nengaged in the businesses relating to the exploration and production of oil,<br \/>\ngas and other minerals and the treatment, processing, storage, transportation<br \/>\nand marketing of oil, gas and<\/p>\n<p>                                      -27-<br \/>\n   70<br \/>\nother minerals.  Prior to the Exchange and until the Closing or termination of<br \/>\nthis Agreement, Tom Brown shall not and it shall not allow any Affiliate<br \/>\nthereof to directly or indirectly sell, transfer, or otherwise dispose of<br \/>\n(except to an Affiliate) any Presidio Securities beneficially owned as of the<br \/>\ndate of this Agreement by Tom Brown or any Affiliate thereof or any Presidio<br \/>\nSecurities hereafter acquired by Tom Brown or any Affiliate thereof.<\/p>\n<p>                                   ARTICLE V<\/p>\n<p>                   REPRESENTATIONS AND WARRANTIES OF PRESIDIO<\/p>\n<p>         5.1     Disclaimers.<\/p>\n<p>                 (a)      Prior to the execution of this Agreement, Tom Brown<br \/>\n         has been afforded the opportunity to inspect the Oil and Gas Assets<br \/>\n         and to examine the records of Presidio at Presidio&#8217;s offices with<br \/>\n         respect to the Oil and Gas Assets, and has been afforded access to all<br \/>\n         information in Presidio&#8217;s possession with respect to the Oil and Gas<br \/>\n         Assets.  TOM BROWN ACKNOWLEDGES THAT, EXCEPT AS EXPRESSLY PROVIDED IN<br \/>\n         THIS ARTICLE V, PRESIDIO, ITS OFFICERS, DIRECTORS, EMPLOYEES,<br \/>\n         REPRESENTATIVES AND AGENTS HAVE MADE NO, AND PRESIDIO HEREBY EXPRESSLY<br \/>\n         DISCLAIMS ANY, REPRESENTATIONS OR WARRANTIES AS TO THE ACCURACY OR<br \/>\n         COMPLETENESS OF SUCH INFORMATION, AS TO A PRESIDIO PARTY&#8217;S TITLE TO<br \/>\n         THE OIL AND GAS ASSETS, OR AS TO ANY OTHER INFORMATION, DATA OR OTHER<br \/>\n         MATERIALS (WRITTEN OR ORAL) FURNISHED TO TOM BROWN BY OR ON BEHALF OF<br \/>\n         PRESIDIO (INCLUDING THE EXISTENCE OR EXTENT OF OIL, GAS OR OTHER<br \/>\n         MINERAL RESERVES, THE RECOVERABILITY OF OR THE COST OF RECOVERING ANY<br \/>\n         SUCH RESERVES, THE VALUE OF SUCH RESERVES, ANY PRODUCTION PRICING<br \/>\n         ASSUMPTIONS, PRESENT OR PAST PRODUCTION RATES, COMPLIANCE WITH LEASE<br \/>\n         TERMS, THE CONDITION OF ANY WELL, AND THE ABILITY TO SELL OIL OR GAS<br \/>\n         PRODUCTION AFTER CLOSING).<\/p>\n<p>                 (b)      PRESIDIO EXPRESSLY DISCLAIMS ANY WARRANTY AS TO THE<br \/>\n         CONDITION OF ANY PERSONAL PROPERTY, FIXTURES AND ITEMS OF MOVABLE<br \/>\n         PROPERTY COMPRISING ANY PART OF THE OIL AND GAS ASSETS INCLUDING (i)<br \/>\n         ANY IMPLIED OR EXPRESS WARRANTY OF MERCHANTABILITY, (ii) ANY IMPLIED<br \/>\n         OR EXPRESS WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, (iii) ANY<br \/>\n         IMPLIED OR EXPRESS WARRANTY OF CONFORMITY TO MODELS OR SAMPLES OF<br \/>\n         MATERIALS, (iv) ANY RIGHTS OF TOM BROWN UNDER APPLICABLE STATUTES TO<br \/>\n         CLAIM DIMINUTION OF CONSIDERATION, AND (v) ANY CLAIM BY TOM BROWN FOR<br \/>\n         DAMAGES BECAUSE OF DEFECTS, WHETHER KNOWN OR UNKNOWN, IT BEING<br \/>\n         EXPRESSLY UNDERSTOOD BY TOM BROWN THAT THE PERSONAL PROPERTY, FIXTURES<br \/>\n         AND ITEMS ARE TO BE ACCEPTED AS IS, WHERE IS, WITH ALL FAULTS, AND IN<br \/>\n         THEIR PRESENT CONDITION AND STATE OF REPAIR AND THAT TOM BROWN HAS<br \/>\n         MADE OR CAUSED TO BE MADE SUCH INSPECTIONS AS TOM BROWN DEEMS<br \/>\n         APPROPRIATE.<\/p>\n<p>                                      -28-<br \/>\n   71<br \/>\n                 (c)      NOTWITHSTANDING ANY PROVISIONS CONTAINED HEREIN TO<br \/>\n         THE CONTRARY, NO REPRESENTATION AND WARRANTY CONTAINED IN THIS ARTICLE<br \/>\n         V MAY BE BREACHED BY REASON OF ANY PERMITTED CLAIM.<\/p>\n<p>                 (d)      All information and data set forth in each of the<br \/>\n         separately numbered Schedules hereto shall be deemed by this reference<br \/>\n         to be set forth in all such other Schedules delivered pursuant to this<br \/>\n         Agreement; provided, that the information and data set forth in<br \/>\n         Schedule 5.25 shall not be deemed pursuant to this Section 5.1(d) to<br \/>\n         be set forth in Schedule 5.12.  Except as otherwise provided in this<br \/>\n         Section 5.1(d), it is the intent of the parties that once particular<br \/>\n         information and data is disclosed in a Schedule hereto, that the same<br \/>\n         information and data need not be contained in another Schedule hereto.<\/p>\n<p>                 (e)      Subject to this Section 5.1, and the information and<br \/>\n         data disclosed on any Schedule hereto, Presidio hereby makes the<br \/>\n         representations and warranties contained in the remaining Sections of<br \/>\n         this Article V.<\/p>\n<p>         5.2     Existence.  Each of Presidio Exploration and Palisade Oil is a<br \/>\ncorporation duly organized, validly existing, and in good standing under the<br \/>\nlaws of the State of Colorado and each of Presidio and Presidio West Virginia<br \/>\nis a corporation duly organized, validly existing, and in good standing under<br \/>\nthe laws of the State of Delaware.  Each Presidio Party is duly qualified to do<br \/>\nbusiness as a foreign corporation in the state(s) where the character of the<br \/>\nproperties owned or leased by such Presidio Party or the nature of its<br \/>\nactivities make such qualification necessary.  Each of the Presidio Parties has<br \/>\nfull corporate power and authority to own its properties and assets and to<br \/>\ncarry on its business as now being conducted.<\/p>\n<p>         5.3     Authorization and Enforceability.  Each Presidio Party has the<br \/>\ncorporate power and authority to enter into and, subject to the requisite<br \/>\napproval of the Bankruptcy Court and the Presidio Securityholders and the<br \/>\nissuance of the Confirmation Order, perform this Agreement and the transactions<br \/>\ncontemplated by this Agreement.  The execution, delivery, and performance of<br \/>\nthis Agreement, and the transactions contemplated hereby, have been duly and<br \/>\nvalidly authorized by all necessary corporate action on the part of each<br \/>\nPresidio Party except for the requisite approval of the Presidio<br \/>\nSecurityholders.  This Agreement constitutes the valid and binding obligation<br \/>\nof Presidio enforceable in accordance with its terms.<\/p>\n<p>         5.4     No Violations.  Subject to the requisite approval of the<br \/>\nPresidio Securityholders and the issuance of the Confirmation Order, the<br \/>\nexecution, delivery and performance of this Agreement by each Presidio Party<br \/>\nand the consummation of the transactions contemplated by this Agreement, will<br \/>\nnot (a) violate, conflict with or result in a breach of any provision of the<br \/>\ncertificates of incorporation or bylaws of any Presidio Party, (b) violate,<br \/>\nconflict with or result in a breach of any provisions of, or constitute a<br \/>\ndefault (or an event which, with notice or lapse of time or both, would<br \/>\nconstitute a default) under, or result in the creation of any Lien upon any of<br \/>\nthe assets of any Presidio Party under, any contract, agreement, note, bond,<br \/>\nmortgage, indenture, deed of trust, license, franchise, permit, lease, plan,<br \/>\ninstrument or other document (&#8220;Contract&#8221;) binding on any Presidio Party, (c)<br \/>\nviolate any judgment, injunction, order, ruling, or decree applicable to any<br \/>\nPresidio Party<\/p>\n<p>                                      -29-<br \/>\n   72<br \/>\nas a party in interest, or the assets of any Presidio Party, or (d) violate any<br \/>\nlaw, rule, or regulation applicable to any Presidio Party or relating to its<br \/>\nassets.<\/p>\n<p>         5.5     Claims and Litigation.  Except for the claims, actions, suits,<br \/>\nor proceedings expressly set forth in the Presidio SEC Documents or in Schedule<br \/>\n5.5, there are no claims, actions, suits, or proceedings pending (including<br \/>\nclaims described in Section 510(b) of the Bankruptcy Code and new claims<br \/>\nasserted or new actions arising after the date of this Agreement that form a<br \/>\npart of suits or proceedings set forth in Schedule 5.5), or to the Knowledge of<br \/>\nPresidio, threatened against a Presidio Party.<\/p>\n<p>         5.6     Consents and Approvals.  No consent, approval, order, or<br \/>\nauthorization of, registration, declaration, or filing with, or permit (other<br \/>\nthan filings required under the 1933 Act, the 1934 Act, the Hart Scott Act and<br \/>\nfilings required by and the approval of the Bankruptcy Court) from any<br \/>\nGovernmental Authority is required by or with respect to the Presidio Parties<br \/>\nin connection with the execution and delivery of this Agreement by the Presidio<br \/>\nParties or the consummation by the Presidio Parties of the transactions<br \/>\ncontemplated hereby, except for the approval of the Presidio Securityholders<br \/>\nand those otherwise expressly contemplated herein.<\/p>\n<p>         5.7     Presidio SEC Documents.  Presidio has made available to Tom<br \/>\nBrown a true and complete copy of the Presidio SEC Documents, which are all the<br \/>\ndocuments (other than preliminary material) that Presidio was required to file<br \/>\nwith the SEC since January 1, 1995.  As of their respective dates, the Presidio<br \/>\nSEC Documents complied in all material respects with the requirements of the<br \/>\n1933 Act or the 1934 Act, as the case may be, and the rules and regulations of<br \/>\nthe SEC promulgated thereunder applicable to such Presidio SEC Documents, and<br \/>\nnone of the Presidio SEC Documents contained any untrue statement of a material<br \/>\nfact or omitted to state a material fact required to be stated therein or<br \/>\nnecessary to make the statements therein, in light of the circumstances under<br \/>\nwhich they were made, not misleading.<\/p>\n<p>         5.8     Taxes.<\/p>\n<p>                 (a)      Each Presidio Party and any affiliated, combined, or<br \/>\n         unitary group of which any such corporation is or was a member<br \/>\n         (&#8220;Presidio Tax Affiliates&#8221;) has timely filed all Tax Returns that are<br \/>\n         required to be filed by it.  All such Tax Returns were correct and<br \/>\n         complete in all material respects.<\/p>\n<p>                 (b)      Each Presidio Party and each Presidio Tax Affiliate<br \/>\n         has timely paid all Taxes that are due and payable (except for Taxes<br \/>\n         that are being contested in good faith by appropriate proceedings as<br \/>\n         of the date of this Agreement and for which reserves, which are<br \/>\n         adequate under GAAP, have been established in the Presidio Financial<br \/>\n         Statements).<\/p>\n<p>                 (c)      Each Presidio Party and each Presidio Tax Affiliate<br \/>\n         has complied in all material respects with all applicable laws, rules,<br \/>\n         and regulations relating to the withholding and payment of Taxes and<br \/>\n         has in all material respects timely withheld and paid to the proper<br \/>\n         governmental authorities all amounts required to have been withheld<br \/>\n         and paid in connection<\/p>\n<p>                                      -30-<br \/>\n   73<br \/>\n         with amounts paid or owing to any employee, independent contractor,<br \/>\n         creditor, or stockholder.<\/p>\n<p>                 (d)      Except as set forth in Schedule 5.8, (i) no audits or<br \/>\n         other administrative or court proceedings are currently pending<br \/>\n         against a Presidio Party with regard to any Taxes for which a Presidio<br \/>\n         Party could be liable, (ii) no dispute or claim concerning any Taxes<br \/>\n         for which a Presidio Party could be liable either (A) has been claimed<br \/>\n         or raised by any taxing authority in writing or (B) is known by the<br \/>\n         directors and officers (and employees responsible for Tax matters) of<br \/>\n         a Presidio Party, (iii) with respect to each Presidio Party, there are<br \/>\n         no pending requests for rulings from any taxing authority with respect<br \/>\n         to any Taxes, (iv) with respect to each Presidio Party, there are no<br \/>\n         proposed reassessments by any taxing authority of any of the assets of<br \/>\n         a Presidio Party, (v) with respect to each Presidio Party, there are<br \/>\n         no agreements in effect to extend the time to file any material Tax<br \/>\n         Return or to extend or waive the period of limitations for the<br \/>\n         assessment or collection of any Taxes for which a Presidio Party may<br \/>\n         be liable, and (vi) to the Knowledge of each Presidio Party, no claim<br \/>\n         has been made by any taxing authority in a jurisdiction where a<br \/>\n         Presidio Party does not file Tax Returns that it is or may be subject<br \/>\n         to taxation by that jurisdiction.<\/p>\n<p>                 (e)      Except as set forth in Schedule 5.8, none of the<br \/>\n         Presidio Parties has made any payments, is obligated to make any<br \/>\n         payments or is a party to any agreement that under certain<br \/>\n         circumstances could obligate it to make any payments that will not be<br \/>\n         deductible under Code Section 280G.<\/p>\n<p>                 (f)      Each of the Presidio Parties has disclosed on its<br \/>\n         federal income Tax Returns all positions taken therein that could give<br \/>\n         rise to a substantial understatement of federal income Tax within the<br \/>\n         meaning of Code Section 6662.<\/p>\n<p>                 (g)      No Presidio Party (i) is a party to any Tax<br \/>\n         allocation or sharing agreement with any member of an Affiliated Group<br \/>\n         filing a consolidated federal income Tax Return with such Presidio<br \/>\n         Party, (ii) has been a member of an Affiliated Group filing a<br \/>\n         consolidated federal income Tax Return other than the group of which<br \/>\n         Presidio is the parent or (iii) has liability for the federal income<br \/>\n         taxes of any Person under Treas. Reg.  Section 1.1502-6, as a<br \/>\n         transferee or successor, by contract, or otherwise.<\/p>\n<p>                 (h)      Prior to the Closing, no material election with<br \/>\n         respect to future Taxes will be made after the date of this Agreement<br \/>\n         without the written consent of Tom Brown.<\/p>\n<p>                 (i)      The Presidio Parties have not filed a consent<br \/>\n         pursuant to the collapsible corporation provisions of Section 341(f)<br \/>\n         of the Code (or any corresponding provisions of state, local, or<br \/>\n         foreign income tax law) or agreed to have Section 341(f)(2) of the<br \/>\n         Code (or any corresponding provision of state, local, or foreign<br \/>\n         income tax law) apply to any disposition of any asset owned by it.<\/p>\n<p>                                      -31-<br \/>\n   74<br \/>\n                 (j)      None of the Major Assets is property that the<br \/>\n         Presidio Parties are required to treat as being owned by any other<br \/>\n         person pursuant to the &#8220;safe harbor lease&#8221; provisions of former<br \/>\n         Section 168(f)(8) of the Code.<\/p>\n<p>                 (k)      None of the Major Assets directly or indirectly<br \/>\n         secures any debt the interest on which is tax- exempt under Section<br \/>\n         103(a) of the Code.<\/p>\n<p>                 (l)      None of the Major Assets is &#8220;tax-exempt use property&#8221;<br \/>\n         within the meaning of Section 168(h) of the Code.<\/p>\n<p>                 (m)      No Presidio Party has agreed to make nor to the<br \/>\n         Knowledge of any of the Presidio Parties is it required to make any<br \/>\n         adjustment under Section 481(a) of the Code by reason of a change in<br \/>\n         accounting method or otherwise.<\/p>\n<p>                 (n)      The Presidio Parties have not participated in and<br \/>\n         will not participate in any international boycott within the meaning<br \/>\n         of Section 999 of the Code.<\/p>\n<p>                 (o)      The Presidio Parties are not and have not been a<br \/>\n         United States real property holding corporation as defined in Section<br \/>\n         897(c)(2) of the Code during the applicable period specified in<br \/>\n         Section 897(c)(1)(A)(ii) of the Code.<\/p>\n<p>                 (p)      The Presidio Parties do not have and have not had a<br \/>\n         permanent establishment in any foreign country, as defined in any<br \/>\n         applicable tax treaty or convention between the United States and such<br \/>\n         foreign country.<\/p>\n<p>                 (q)      The Presidio Parties have not made or will not make a<br \/>\n         consent dividend election under Section 565 of the Code.<\/p>\n<p>         5.9     Employee Benefit Plans.<\/p>\n<p>                 (a)      Notwithstanding any other provision of this Agreement<br \/>\n         to the contrary, this Section 5.9 contains the exclusive<br \/>\n         representations and warranties of Presidio with respect to matters<br \/>\n         governed by ERISA.  Except for the Severance Plan and Agreements,<br \/>\n         Schedule 5.9 sets forth a complete and accurate list of all &#8220;employee<br \/>\n         benefit plans,&#8221; as defined in Section 3(3) of ERISA, and any other<br \/>\n         material employee compensation or benefit arrangement, including<br \/>\n         severance pay, sick leave, vacation pay, salary continuation for<br \/>\n         disability, consulting, or other compensation agreements, retirement,<br \/>\n         supplemental executive retirement agreements, deferred compensation,<br \/>\n         bonus, long-term incentive, stock option, stock purchase,<br \/>\n         hospitalization, medical insurance, dental insurance, life insurance,<br \/>\n         and educational assistance programs maintained by a Presidio Party or<br \/>\n         to which a Presidio Party is obligated to contribute, or with respect<br \/>\n         to which any Presidio Party has any liability, and each employment<br \/>\n         related agreement under which a Presidio Party is obligated (the<br \/>\n         &#8220;Employee Benefit Plans&#8221;).  Except for the Employee Benefit Plans and<br \/>\n         the Severance Plan and Agreements, no Presidio Party maintains or has<br \/>\n         any obligation under any other compensation<\/p>\n<p>                                      -32-<br \/>\n   75<br \/>\n         based or related arrangement.  Copies of each Employee Benefit Plan<br \/>\n         have been furnished to Tom Brown.<\/p>\n<p>                 (b)      There is no material violation of ERISA with respect<br \/>\n         to any of the Employee Benefit Plans.<\/p>\n<p>                 (c)      The Employee Benefit Plans have been maintained, in<br \/>\n         all material respects, in accordance with their terms and with all<br \/>\n         applicable federal and state law, each Employee Benefit Plan intended<br \/>\n         to be qualified under Section 401(a) of the Code is so qualified, and<br \/>\n         no Presidio Party nor any &#8220;party in interest&#8221; or &#8220;disqualified person&#8221;<br \/>\n         with respect to the Employee Benefit Plans has engaged in any<br \/>\n         &#8220;prohibited transaction&#8221; within the meaning of Section 4975 of the<br \/>\n         Code or Section 406 of ERISA for which there is no exemption.<\/p>\n<p>                 (d)      No Employee Benefit Plan is subject to Title IV of<br \/>\n         ERISA and no Presidio Party has any obligation, including any<br \/>\n         contingent liability, to contribute to a &#8220;multiemployer plan&#8221; within<br \/>\n         the meaning of Section 3(37) of ERISA.<\/p>\n<p>                 (e)      Except as set forth in Schedule 5.9, no Presidio<br \/>\n         Party has any liability under any group health plan with respect to<br \/>\n         any current or former employees beyond their termination of<br \/>\n         employment, other than as required by Section 4980B of the Code or<br \/>\n         pursuant to the Severance Plan and Agreements.<\/p>\n<p>         5.10    Financial Statements.  The Presidio Financial Statements were<br \/>\nprepared in accordance with GAAP applied on a consistent basis during the<br \/>\nperiods involved (except as may be indicated in the notes thereto or, in the<br \/>\ncase of unaudited statements, as permitted by Rule 10-01 of Regulation S-X of<br \/>\nthe SEC) and fairly present in accordance with applicable requirements of GAAP<br \/>\n(subject, in the case of the unaudited statements, to normal, recurring<br \/>\nadjustments, none or which will be material) the consolidated financial<br \/>\nposition of Presidio and its consolidated subsidiaries as of their respective<br \/>\ndates and the consolidated results of operations and the consolidated cash<br \/>\nflows of Presidio and its consolidated subsidiaries for the periods presented<br \/>\ntherein.<\/p>\n<p>         5.11    Capital Structure.<\/p>\n<p>                 (a)      As of the date of this Agreement, the authorized<br \/>\n         capital stock of each Presidio Party is as set forth in Schedule 5.11.<\/p>\n<p>                 (b)      As of the close of business on June 30, 1996, there<br \/>\n         were issued and outstanding (i) 25,318,085 shares of Presidio Class A<br \/>\n         Common Stock and 3,216,585 shares of Presidio Class B Common Stock and<br \/>\n         (ii) options and warrants relating to 1,268,000 shares of Presidio<br \/>\n         Class A Common Stock and 1,025,981 shares of Presidio Class B Common<br \/>\n         Stock as set forth in Schedule 5.11 (the &#8220;Presidio Options or<br \/>\n         Warrants&#8221;).  Except as set forth in this Section 5.11(b) or as<br \/>\n         otherwise disclosed in the Presidio SEC Documents, there are<br \/>\n         outstanding as of the date of this Agreement (i) no shares of capital<br \/>\n         stock or other equity securities of Presidio, (ii) no securities of<br \/>\n         Presidio or any other person convertible into or exchangeable or<br \/>\n         exercisable for shares of capital stock or other equity securities of<br \/>\n         Presidio,<\/p>\n<p>                                      -33-<br \/>\n   76<br \/>\n         and (iii) no subscriptions, options, warrants, calls, rights<br \/>\n         (including preemptive rights), commitments, understandings, or<br \/>\n         agreements to which Presidio is a party or by which it is bound<br \/>\n         obligating Presidio to issue, deliver, sell, purchase, redeem, or<br \/>\n         acquire shares of capital stock or other equity securities of Presidio<br \/>\n         (or securities convertible into or exchangeable or exercisable for<br \/>\n         shares of capital stock or other equity securities of Presidio) or<br \/>\n         obligating Presidio to grant, extend, or enter into any such<br \/>\n         subscription, option, warrant, call, right, commitment, understanding,<br \/>\n         or agreement.<\/p>\n<p>                 (c)      All outstanding shares of Presidio Common Stock are<br \/>\n         validly issued, fully paid, and nonassessable and not subject to any<br \/>\n         preemptive right.<\/p>\n<p>                 (d)      Presidio directly or indirectly owns all outstanding<br \/>\n         shares of capital stock and other equity securities of each of the<br \/>\n         other Presidio Parties, free and clear of all liens, claims, and<br \/>\n         options of any nature (except for Permitted Encumbrances set forth in<br \/>\n         clause (m) of the definition thereof).  Except as set forth in<br \/>\n         Schedule 5.11, there are outstanding as of the date of this Agreement<br \/>\n         (i) no securities of a Presidio Party, or any other person convertible<br \/>\n         into or exchangeable or exercisable for shares of capital stock or<br \/>\n         other equity securities of a Presidio Party and (ii) no subscriptions,<br \/>\n         options, warrants, calls, rights (including preemptive rights),<br \/>\n         commitments, understandings, or agreements to which either a Presidio<br \/>\n         Party is a party or by which it is bound obligating a Presidio Party<br \/>\n         to issue, deliver, sell, purchase, redeem, or acquire shares of<br \/>\n         capital stock or other equity securities of a Presidio Party or<br \/>\n         securities convertible into or exchangeable or exercisable for shares<br \/>\n         of capital stock or other equity securities of a Presidio Party or<br \/>\n         obligating a Presidio Party to grant, extend, or enter into any such<br \/>\n         subscription, option, warrant, call, right, commitment, understanding,<br \/>\n         or agreement.<\/p>\n<p>         5.12    No Undisclosed Liabilities.  No Presidio Party has any direct<br \/>\nor indirect liabilities, indebtedness, obligations, expenses, claims (including<br \/>\nclaims as defined in Section 101(5) of the Bankruptcy Code, and disputed<br \/>\nclaims, obligations or liens as defined in Section 101(37) of the Bankruptcy<br \/>\nCode), deficiencies, guarantees or endorsements of or by any person (other than<br \/>\nendorsements of notes, bills and checks presented to banks for collection or<br \/>\ndeposit in the ordinary course of business) of any kind whatsoever, whether<br \/>\naccrued, contingent, absolute, determined, determinable, or otherwise<br \/>\n(&#8220;Liabilities&#8221;), other than (a) Liabilities reflected in the Presidio Financial<br \/>\nStatements in accordance with GAAP or disclosed in the Presidio SEC Documents,<br \/>\n(b) Liabilities incurred in the ordinary course of business subsequent to<br \/>\nDecember 31, 1995, (c) Liabilities arising under or otherwise disclosed in this<br \/>\nAgreement (except for disclosures made pursuant to Section 5.25), (d)<br \/>\nLiabilities set forth in Schedule 5.12, (e) Liabilities that have been<br \/>\nreimbursed or paid under insurance coverage maintained by the Presidio Parties<br \/>\nor any other person or as to which an insurance company or other insuring<br \/>\nentity has acknowledged its obligation to reimburse or pay such Liabilities,<br \/>\nand (f) Liabilities arising from any agreement, fact, event, or action that is<br \/>\nthe subject matter of any other representation and warranty contained in this<br \/>\nArticle V (other than Section 5.25).<\/p>\n<p>         5.13    Absence of Certain Changes or Events.  Except as otherwise set<br \/>\nforth in either Schedule 5.13, or the Presidio SEC Documents, or as<br \/>\ncontemplated by this Agreement, since<\/p>\n<p>                                      -34-<br \/>\n   77<br \/>\nDecember 31, 1995, the Presidio Parties have used all reasonable efforts to<br \/>\npreserve and retain the business, employees, properties, suppliers, and<br \/>\ngoodwill of the Presidio Parties and have operated their respective operations<br \/>\nand conducted business generally only in the ordinary and usual course<br \/>\nconsistent with past practice, and no Presidio Party has done any of the<br \/>\nfollowing:<\/p>\n<p>                 (a)      Discharged or satisfied any Lien or paid any<br \/>\n         obligation or liability, absolute or contingent, other than current<br \/>\n         liabilities incurred and paid in the ordinary course of business and<br \/>\n         consistent with past practices;<\/p>\n<p>                 (b)      Except for transactions between the Presidio Parties,<br \/>\n         paid or declared any dividends or distributions, purchased, redeemed,<br \/>\n         acquired, or retired any indebtedness, stock, or other securities from<br \/>\n         its stockholders or other securityholders, made any loans or advances<br \/>\n         or guaranteed any loans or advances to any person, or otherwise<br \/>\n         incurred any liabilities (other than current liabilities incurred in<br \/>\n         the ordinary course of business and consistent with past practices);<\/p>\n<p>                 (c)      Except for Permitted Encumbrances and Permitted<br \/>\n         Claims, suffered or permitted any Lien to arise or be granted or<br \/>\n         created against or upon any of its assets;<\/p>\n<p>                 (d)      Cancelled, waived, or released any rights or claims<br \/>\n         against, or indebtedness owed by, third parties;<\/p>\n<p>                 (e)      Amended its certificate or articles of incorporation<br \/>\n         or by-laws;<\/p>\n<p>                 (f)      Made or permitted any amendment, supplement,<br \/>\n         modification, or termination of any material agreement;<\/p>\n<p>                 (g)      Paid or made any agreement to pay any bonuses,<br \/>\n         severance or termination payment to any employee or consultant;<\/p>\n<p>                 (h)      (i) Sold, leased or subleased, transferred, or<br \/>\n         otherwise disposed of or mortgaged, pledged, or otherwise encumbered<br \/>\n         or granted any rights or interests with respect to any Oil and Gas<br \/>\n         Assets that, individually or in the aggregate, were assigned a value<br \/>\n         in the Reserve Report of $100,000 or more or any other assets that,<br \/>\n         individually or in the aggregate, have a value at the time of such<br \/>\n         sale, lease, sublease, transfer, or disposition of $100,000 or more<br \/>\n         (except that this clause shall not apply to the sale of severed oil,<br \/>\n         gas and other minerals produced and sold in the ordinary course of<br \/>\n         business or the expenditure of the Presidio Parties&#8217; cash and cash<br \/>\n         items in the ordinary course of business), (ii) farmed-out any Oil and<br \/>\n         Gas Assets or interest therein, (iii) sold, transferred, or otherwise<br \/>\n         disposed of or mortgaged, pledged, or otherwise encumbered any<br \/>\n         securities of any other person, (iv) made any material loans,<br \/>\n         advances, or capital contributions to, or investments in, any person<br \/>\n         (other than loans or advances in the ordinary course of business and<br \/>\n         consistent with past practices or loans, advances or capital<br \/>\n         contributions to, or investments in, another Presidio Party), (v)<br \/>\n         entered into any agreement requiring a payment or expenditure<br \/>\n         thereunder by a Presidio Party in excess of $100,000 and not<br \/>\n         terminable upon notice of thirty (30) days or less and without<\/p>\n<p>                                      -35-<br \/>\n   78<br \/>\n         penalty or other obligation (other than agreements entered into in the<br \/>\n         ordinary course of business and consistent with past practices), (vi)<br \/>\n         entered into any transaction (x) pursuant to which a Presidio Party<br \/>\n         will make a payment or incur an expenditure in excess of $100,000 or<br \/>\n         (y) which is not in the ordinary course of business and not<br \/>\n         contemplated by this Agreement, (vii) other than areas of mutual<br \/>\n         interest commonly set forth in operating agreements, agreed with any<br \/>\n         person to limit or otherwise restrict in any manner the ability of a<br \/>\n         Presidio Party to compete or otherwise conduct its business, or (viii)<br \/>\n         entered into any contract, agreement, commitment, or arrangement with<br \/>\n         respect to any of the foregoing;<\/p>\n<p>                 (i)      Made any investment in or contribution, payment, or<br \/>\n         advance to any person (other than investments, contributions,<br \/>\n         payments, or advances made in the ordinary course of business and<br \/>\n         consistent with past practices);<\/p>\n<p>                 (j)      (i) entered into or amended any material employment,<br \/>\n         compensation or severance agreements, (ii) changed or established any<br \/>\n         new bonuses, (iii) increased the level of compensation or benefits,<br \/>\n         including under any Employee Benefit Plans, of any officer, director,<br \/>\n         or other executive personnel or any consultant, (iv) established,<br \/>\n         entered into or amended in any material respect any pension, employee<br \/>\n         benefit or health plans or any other plans, policies, programs,<br \/>\n         practices, or arrangements relating to employee benefits or<br \/>\n         compensation other than to maintain compliance with any applicable law<br \/>\n         or regulation or (v) paid any bonuses to any officer, director, or<br \/>\n         other executive personnel or any consultant; provided, however,<br \/>\n         Presidio shall terminate its Employee Stock Ownership Plan as provided<br \/>\n         in Section 4.23; or<\/p>\n<p>                 (k)      Made any change in any of the accounting principles<br \/>\n         followed by it or the method of applying such principles other than in<br \/>\n         accordance with GAAP.<\/p>\n<p>         5.14    Governmental Regulation.  No Presidio Party is subject to<br \/>\nregulation under the Public Utility Holding Company Act of 1935 or the<br \/>\nInvestment Company Act of 1940.<\/p>\n<p>         5.15    Labor Matters.<\/p>\n<p>                 (a)      No employees of a Presidio Party are represented by<br \/>\n         any labor organization.  To the Knowledge of Presidio, there are no<br \/>\n         organizing activities involving a Presidio Party pending with any<br \/>\n         labor organization or group of employees of a Presidio Party.<\/p>\n<p>                 (b)      Except as set forth in Schedule 5.15, each Presidio<br \/>\n         Party is in material compliance with all laws, rules, regulations, and<br \/>\n         orders relating to the employment of labor, including all such laws,<br \/>\n         rules, regulations, and orders relating to wages, hours, collective<br \/>\n         bargaining, discrimination, civil rights, safety and health, workers&#8217;<br \/>\n         compensation, and the collection and payment of withholding or Social<br \/>\n         Security Taxes and similar Taxes.<\/p>\n<p>         5.16    Accounts Receivable.  Except as otherwise set forth in<br \/>\nSchedule 5.16, all of the accounts, notes, and loans receivable that have been<br \/>\nrecorded on the Presidio Financial Statements are bona fide and represent<br \/>\naccounts, notes, and loans receivable validly due for goods sold or<\/p>\n<p>                                      -36-<br \/>\n   79<br \/>\nservices rendered and are reasonably expected to be collected in full within<br \/>\nninety (90) days after the applicable invoice or note maturity date (other than<br \/>\nto the extent of the allowance or reserve for uncollectible accounts, notes,<br \/>\nand loan receivables contained in the Presidio Financial Statements).  Except<br \/>\nfor Permitted Encumbrances set forth in clause (m) of the definition thereof,<br \/>\nall of such accounts, notes, and loans receivable are free and clear of any and<br \/>\nall Liens.  None of the obligors on such accounts, notes, or loans receivable<br \/>\nhas given notice to a Presidio Party that it will or may refuse to pay the full<br \/>\namount or any portion thereof.<\/p>\n<p>         5.17    Intangible Property.  There are no material trademarks, trade<br \/>\nnames, patents, service marks, brand marks, brand names, computer programs,<br \/>\ndatabases, industrial designs, copyrights, or other intangible property that<br \/>\nare necessary for the operation, or continued operation, of the business of a<br \/>\nPresidio Party or the ownership and operation, or continued ownership and<br \/>\noperation, of any of their assets, for which such Presidio Party does not hold<br \/>\nvalid and continuing authority and consent in connection with the use thereof.<\/p>\n<p>         5.18    Presidio&#8217;s Title.  The Presidio Parties have Defensible Title<br \/>\nto the Major Assets.<\/p>\n<p>         5.19    Reserve Report.  The historical production and operating cost<br \/>\ndata in respect of the Wells provided in the lease operating statements and<br \/>\nhistorical oil and gas price information provided in the data room were true<br \/>\nand correct in all material respects.  To the Knowledge of Presidio, the<br \/>\nReserve Report was prepared in accordance with generally accepted engineering<br \/>\nand evaluation principles and is true and correct as of such date in all<br \/>\nrespects to the extent applicable to the business of the Presidio Parties.<br \/>\nExcept as set forth in Schedule 5.19, to the Knowledge of Presidio, no fact or<br \/>\ncircumstance has occurred since the date of the Reserve Report that results in<br \/>\nany material adverse change, determined in the aggregate and after<br \/>\nconsideration of all favorable changes, in the reserves of Presidio as set<br \/>\nforth in the Reserve Report, other than  changes attributable to normal<br \/>\ndepletion by subsequent production, general economic conditions in the oil and<br \/>\ngas industry or subsequent drilling, reworking or recompletion activities.<br \/>\nExcept as set forth in Schedule 5.19, in all respects, the net revenue<br \/>\ninterests and the working interests of the Presidio Parties shown on Exhibit B<br \/>\nhereto are the same net revenue interests and working interests used in the<br \/>\npreparation of the Reserve Report, and the information contained in Exhibit B<br \/>\nregarding payout and similar events that cause adjustments to said net revenue<br \/>\ninterests and working interests is the information used in the preparation of<br \/>\nthe Reserve Report.  OTHER THAN AS EXPRESSLY SET FORTH ABOVE IN THIS SECTION<br \/>\n5.19, PRESIDIO MAKES NO WARRANTY AND HEREBY DISCLAIMS ANY WARRANTY THAT THE<br \/>\nRESERVE ESTIMATES, CASH FLOW ESTIMATES, PRICE ESTIMATES, OR PRODUCTION OR FLOW<br \/>\nRATE ESTIMATES CONTAINED IN THE RESERVE REPORT OR IN ANY SUPPLEMENT THERETO OR<br \/>\nUPDATE THEREOF ARE IN ANY WAY COMPLETE, ACCURATE OR NOT MISLEADING, THE SAME<br \/>\nBEING PREDICTIONS AS TO FUTURE EVENTS WHICH ARE INHERENTLY SUBJECT TO<br \/>\nINCOMPLETENESS AND INACCURACY.<\/p>\n<p>         5.20    Oil and Gas Operations.  Except as otherwise set forth in<br \/>\nSchedule 5.20:<\/p>\n<p>                 (a)      None of the Wells has been overproduced such that it<br \/>\n         is subject or liable to being shut-in or to any other overproduction<br \/>\n         penalty;<\/p>\n<p>                                      -37-<br \/>\n   80<br \/>\n                 (b)      There have been no changes proposed in the production<br \/>\n         allowables for any Wells;<\/p>\n<p>                 (c)      All Wells have been drilled and (if completed)<br \/>\n         completed, operated, and produced in accordance with good oil and gas<br \/>\n         field practices and in compliance in all material respects with<br \/>\n         applicable oil and gas leases and applicable laws, rules, and<br \/>\n         regulations except where permit applications or requests for<br \/>\n         exceptions are pending;<\/p>\n<p>                 (d)      Proceeds from the sale of oil, gas and other minerals<br \/>\n         produced from the Oil and Gas Assets are being received by the<br \/>\n         applicable Presidio Party in a timely manner and are not being held in<br \/>\n         suspense for any reason, except for (i) amounts held in suspense as of<br \/>\n         the date of this Agreement that individually or in the aggregate are<br \/>\n         not in excess of $100,000, (ii) amounts held in suspense in the<br \/>\n         ordinary course of business after the date of this Agreement, and<br \/>\n         (iii) amounts held in suspense after the date of this Agreement<br \/>\n         because of the occurrence of a Bankruptcy Event or because of concerns<br \/>\n         regarding the financial condition of a Presidio Party;<\/p>\n<p>                 (e)      Except as may be required under any &#8220;non-consent&#8221;<br \/>\n         penalty, none of the Leases or Wells is subject to any production<br \/>\n         payment or prepayment arrangement arising under any contract for the<br \/>\n         purchase or sale of oil, gas or other minerals to deliver, or to<br \/>\n         suffer the delivery of, any oil, gas or other minerals at some future<br \/>\n         time without then or thereafter receiving full payment therefor;<\/p>\n<p>                 (f)      No person has any call upon, option to purchase or<br \/>\n         similar right to obtain oil, gas or other hydrocarbons production from<br \/>\n         the Oil and Gas Assets other than rights contained in existing<br \/>\n         production sales contracts, call contracts, farmouts, assignments or<br \/>\n         similar contracts;<\/p>\n<p>                 (g)      None of the Presidio Parties are obligated to deliver<br \/>\n         a material quantity of gas to any pipeline or other party as make-up<br \/>\n         for any net under-deliveries of gas from the Oil and Gas Assets for<br \/>\n         transportation, nor is any Presidio Party liable for any material<br \/>\n         scheduling or imbalance penalties or charges imposed by any pipeline<br \/>\n         or other party for transportation of gas produced from any of the Oil<br \/>\n         and Gas Assets;<\/p>\n<p>                 (h)      Subject to Permitted Encumbrances, each of the<br \/>\n         Presidio Parties has the necessary easements and rights-of-way to<br \/>\n         install, maintain, and operate the gathering systems that are owned by<br \/>\n         such Presidio Party as of the date of this Agreement;<\/p>\n<p>                 (i)      As of June 30, 1996, none of the Presidio Parties is<br \/>\n         obligated to deliver any quantity of gas or make any payment by virtue<br \/>\n         of any common law, statutory or contractual balancing arrangement with<br \/>\n         respect to the Oil and Gas Assets; and<\/p>\n<p>                 (j)      Except for monies properly held in suspense, paid<br \/>\n         into escrow, or paid to a Governmental Authority in accordance with<br \/>\n         applicable laws, all royalties, shut-in royalties and similar payments<br \/>\n         payable in connection with the Oil and Gas Assets have been timely<\/p>\n<p>                                      -38-<br \/>\n   81<br \/>\n         paid and in the correct amount.  All delay rental payments payable in<br \/>\n         connection with the Leases have been timely paid and in the correct<br \/>\n         amount, except to the extent that a Presidio Party has determined, in<br \/>\n         the ordinary course of business, not to make such payment.<\/p>\n<p>         5.21    Environmental Matters.  Notwithstanding any other provision of<br \/>\nthis Agreement to the contrary, this Section 5.21 contains the exclusive<br \/>\nrepresentations and warranties of Presidio with respect to &#8220;Environmental<br \/>\nMatters.&#8221; Except as set forth in Schedule 5.21:<\/p>\n<p>                 (a)      Each Presidio Party has conducted its business and<br \/>\n         operated its assets, and is conducting its business and operating its<br \/>\n         assets, in material compliance with all applicable Environmental Laws;<\/p>\n<p>                 (b)      To the Knowledge of Presidio, no Presidio Party and<br \/>\n         none of the operations or assets of any Presidio Party are the subject<br \/>\n         of any pending investigation or inquiry by any governmental authority<br \/>\n         evaluating whether any material Environmental Response Action is<br \/>\n         needed to respond to a release of any Environmental Material or to the<br \/>\n         improper storage, generation, transportation, treatment, or disposal<br \/>\n         of any Environmental Material;<\/p>\n<p>                 (c)      No Presidio Party has filed any notice under federal,<br \/>\n         state, or local law indicating that a Presidio Party is responsible<br \/>\n         for the improper release into the environment or the improper storage,<br \/>\n         generation, transportation, treatment, or disposal of any<br \/>\n         Environmental Material;<\/p>\n<p>                 (d)      No Presidio Party has received any claim, complaint,<br \/>\n         notice, inquiry, or request for information, which remains unresolved,<br \/>\n         with respect to any alleged violation of any applicable Environmental<br \/>\n         Law or regarding potential liability under any applicable<br \/>\n         Environmental Law or under any common law theories relating to<br \/>\n         operations or conditions of any facilities or property owned, leased,<br \/>\n         or operated by a Presidio Party;<\/p>\n<p>                 (e)      To the Knowledge of Presidio, no property now or<br \/>\n         previously owned, leased, or operated by a Presidio Party is listed on<br \/>\n         the National Priorities List pursuant to CERCLA or on the CERCLIS or<br \/>\n         on any other similar federal or state list as a site requiring an<br \/>\n         Environmental Response Action;<\/p>\n<p>                 (f)      To the Knowledge of Presidio, there are no sites,<br \/>\n         locations, or operations at which a Presidio Party is now required to<br \/>\n         undertake any material Environmental Response Action under any<br \/>\n         applicable Environmental Law;<\/p>\n<p>                 (g)      To the Knowledge of Presidio, all underground and<br \/>\n         aboveground storage tanks and solid waste disposal facilities owned or<br \/>\n         operated by a Presidio Party are used and operated in material<br \/>\n         compliance with applicable Environmental Laws;<\/p>\n<p>                 (h)      To the Knowledge of Presidio, there are no existing<br \/>\n         financial assurances given by any Presidio Party under any<br \/>\n         Environmental Law that would require monetary funding by a Presidio<br \/>\n         Party after the date of Closing; and<\/p>\n<p>                                      -39-<br \/>\n   82<br \/>\n                 (i)      To the Knowledge of Presidio, there are no claims,<br \/>\n         complaints, notices, inquiries, requests for information, or<br \/>\n         Environmental Response Actions for which the Presidio Parties may be<br \/>\n         responsible that relate to properties, assets, or entities previously<br \/>\n         owned by the Presidio Parties.<\/p>\n<p>         5.22    Brokers.  Except as set forth in Schedule 5.22, no broker,<br \/>\nfinder, investment banker, or other similar person is or will be, in connection<br \/>\nwith the transactions contemplated by this Agreement, entitled to any<br \/>\nbrokerage, finder&#8217;s, or other similar fee or compensation based on any<br \/>\narrangement or agreement made by or on behalf of a Presidio Party.<\/p>\n<p>         5.23    Compliance with Law; Governmental Authorizations.  Except as<br \/>\nset forth in Schedule 5.23, the Presidio Parties are not in violation of any<br \/>\norder, injunction, judgment, ruling, law, or regulation of any Governmental<br \/>\nAuthority applicable to the property or business of the Presidio Parties.  The<br \/>\nlicenses, permits, and other governmental authorizations held by the Presidio<br \/>\nParties are valid and sufficient for the conduct of the Presidio Parties&#8217;<br \/>\nbusinesses as currently conducted.<\/p>\n<p>         5.24    Insurance.  Schedule 5.24 lists all material insurance<br \/>\npolicies covering the Oil and Gas Assets, employees and operations of the<br \/>\nPresidio Parties as of the date of this Agreement.  Such policies are in full<br \/>\nforce and effect and except for the bankruptcy proceeding contemplated herein,<br \/>\nto the Knowledge of Presidio, as of the date of this Agreement, there does not<br \/>\nexist any event that, with the giving of notice or the lapse of time, or both,<br \/>\nwould constitute a default by a Presidio Party under any such policies.<\/p>\n<p>         5.25    Contracts, Agreements, Commitments and Other Matters.<\/p>\n<p>                 (a)      Schedule 5.25 is a true, correct, and complete list<br \/>\n         of all of the following described items (whether written or oral),<br \/>\n         including all amendments thereto, existing as of the date of this<br \/>\n         Agreement to which any Presidio Party is a party (&#8220;Material<br \/>\n         Contracts&#8221;):<\/p>\n<p>                          (i)     any note, agreement, mortgage, indenture,<br \/>\n                 security agreement, and other instruments relating to the<br \/>\n                 borrowing of money or evidence of credit for the deferred<br \/>\n                 purchase price of property, or the direct or indirect<br \/>\n                 guarantee by a Presidio Party of any such indebtedness or<br \/>\n                 deferred purchase price in excess of $50,000, in each case<br \/>\n                 other than the Bank Obligations and the Debt Obligations;<\/p>\n<p>                          (ii)    any lease of real property and material<br \/>\n                 personal property providing for annual payments by a Presidio<br \/>\n                 Party under any such lease or group of related leases in<br \/>\n                 excess of $25,000, other than the Oil and Gas Assets;<\/p>\n<p>                          (iii)   any partnership agreement requiring a<br \/>\n                 Presidio Party to make capital contributions or expenditures<br \/>\n                 at an annual rate in excess of $100,000;<\/p>\n<p>                          (iv)    any management, employment, and consulting<br \/>\n                 agreement or other contract for personal services that is not<br \/>\n                 terminable on not more than one month&#8217;s notice without<br \/>\n                 penalty, in each case other than the Severance Plan and<br \/>\n                 Agreements;<\/p>\n<p>                                      -40-<br \/>\n   83<br \/>\n                          (v)     any agreement providing for severance pay,<br \/>\n                 collective bargaining agreements, labor contracts, or labor or<br \/>\n                 personnel policies, in each case other than the Employee<br \/>\n                 Benefit Plans and the Severance Plan and Agreements;<\/p>\n<p>                          (vi)    any surety, performance and maintenance bond<br \/>\n                 in excess of $50,000;<\/p>\n<p>                          (vii)   any agreement or commitment requiring a<br \/>\n                 Presidio Party to make capital expenditures in excess of<br \/>\n                 $100,000 for any single project, other than customary<br \/>\n                 operating agreements;<\/p>\n<p>                          (viii)  any plan, contract, or arrangement providing<br \/>\n                 for bonuses, pensions, deferred compensation, retirement plan<br \/>\n                 payments, profit sharing, incentive pay, or for any other<br \/>\n                 employee benefit plan, in each case other than the Employee<br \/>\n                 Benefit Plans and the Severance Plan and Agreements;<\/p>\n<p>                          (ix)    other than as set forth in Schedule 5.22, any<br \/>\n                 brokerage or finder&#8217;s agreement obligating a Presidio Party to<br \/>\n                 make a payment thereunder in excess of $50,000;<\/p>\n<p>                          (x)     any noncompetition agreement (other than<br \/>\n                 areas of mutual interest commonly set forth in operating<br \/>\n                 agreements) that restricts the right of any Presidio Party to<br \/>\n                 engage in any place in any line of business;<\/p>\n<p>                          (xi)    any contract, commitment, or agreement<br \/>\n                 between any of the Presidio Parties or between any  Presidio<br \/>\n                 Party and any Affiliate thereof involving a payment thereunder<br \/>\n                 in excess of $100,000, in each case other than the Bank<br \/>\n                 Obligations, the Debt Obligations, the Employee Benefit Plans<br \/>\n                 and Severance Plan and Agreements;<\/p>\n<p>                          (xii)   any contract (x) for the sale of oil or other<br \/>\n                 liquid hydrocarbons produced or to be produced from the Oil<br \/>\n                 and Gas Assets that is not terminable by a Presidio Party<br \/>\n                 thereto or its respective successor without penalty on no more<br \/>\n                 than ninety (90) days&#8217; notice or (y) for the sale of gas<br \/>\n                 produced or to be produced from the Oil and Gas Assets that<br \/>\n                 has a term exceeding six (6) months;<\/p>\n<p>                          (xiii)  any advance payment agreement or any oil and<br \/>\n                 gas balancing agreement, or any other similar agreements,<br \/>\n                 under which a Presidio Party has a net obligation, as of the<br \/>\n                 most recent date available, which shall be no more than ninety<br \/>\n                 (90) days prior to the date of this Agreement, in excess of<br \/>\n                 $50,000 in cash or market value in oil or gas;<\/p>\n<p>                          (xiv)   other than the Bank Obligations and the Debt<br \/>\n                 Obligations, any contract or agreement relating to the Oil and<br \/>\n                 Gas Assets under which a Presidio Party has outstanding<br \/>\n                 indebtedness, obligations or liability for borrowed money, or<br \/>\n                 liability for the deferred purchase price of property,<br \/>\n                 excluding normal trade payables due in<\/p>\n<p>                                      -41-<br \/>\n   84<br \/>\n                 less than ninety (90) days, or has the obligation to incur any<br \/>\n                 such indebtedness, obligation or liability;<\/p>\n<p>                          (xv)    any contract, commitment, or agreement that<br \/>\n                 involves commodity or interest rate swaps, floors, caps,<br \/>\n                 collars, futures, options, or other similar transactions; and<\/p>\n<p>                          (xvi)   any contract, commitment or agreement that<br \/>\n                 involves the disposition of any assets of any Presidio Party<br \/>\n                 having a value of $50,000 or more not entered into in the<br \/>\n                 ordinary course of business consistent with past practice.<\/p>\n<p>                 (b)      Presidio has provided Tom Brown with access to true,<br \/>\n         correct and complete copies of all written Material Contracts and has<br \/>\n         provided Tom Brown with accurate descriptions of all oral Material<br \/>\n         Contracts.<\/p>\n<p>                 (c)      Except with respect to past due accounts payable or<br \/>\n         outstanding indebtedness to the suppliers disclosed in Schedule 5.25<br \/>\n         and as such may be affected by the Reorganization Cases, to the<br \/>\n         Knowledge of Presidio, as of the date of this Agreement, the Presidio<br \/>\n         Parties&#8217; relationships are generally satisfactory with their<br \/>\n         respective suppliers who are material to the conducting of their<br \/>\n         respective businesses.<\/p>\n<p>                 (d)      Other than as set forth in Schedule 5.25, as of the<br \/>\n         date of this Agreement, the Presidio Parties do not have outstanding<br \/>\n         any powers of attorney with any person who is not as of the date of<br \/>\n         this Agreement an employee of a Presidio Party, including powers of<br \/>\n         attorney with respect to representation before Governmental Agencies,<br \/>\n         customers, agents, and brokers or given in connection with<br \/>\n         qualification to conduct business in any jurisdiction.<\/p>\n<p>                 (e)      Except as set forth in Schedule 5.25  and as such may<br \/>\n         be affected by the Reorganization Cases, each of the Material<br \/>\n         Contracts to which a Presidio Party is a signatory thereto has been<br \/>\n         duly executed by the applicable Presidio Party thereto and is in full<br \/>\n         force and effect and to the Knowledge of Presidio, as of the date of<br \/>\n         this Agreement, except in respect of the Bank Obligations and the Debt<br \/>\n         Obligations, no Presidio Party is in breach of any such Material<br \/>\n         Contract.<\/p>\n<p>         5.26    Fairness Opinion.  Presidio has received a written opinion<br \/>\nfrom Jefferies &amp; Company, Inc., a financial advisor to Presidio, to the effect<br \/>\nthat the Exchange Consideration to be received pursuant to the Plan of<br \/>\nReorganization is fair to the Presidio Securityholders, in the aggregate, from<br \/>\na financial point of view and as of the date of this Agreement such opinion has<br \/>\nnot been withdrawn, revoked, or modified.<\/p>\n<p>                                      -42-<br \/>\n   85<br \/>\n                                   ARTICLE VI<\/p>\n<p>                  REPRESENTATIONS AND WARRANTIES OF TOM BROWN<\/p>\n<p>         Tom Brown represents and warrants to Presidio the following:<\/p>\n<p>         6.1     Existence.  Tom Brown is a corporation duly organized, validly<br \/>\nexisting and in good standing under the laws of the State of Delaware, and is<br \/>\nduly qualified to do business as a foreign corporation in the states where the<br \/>\nproperties owned or leased by it or the nature of its activities make such<br \/>\nqualification necessary.<\/p>\n<p>         6.2     Authorization and Enforceability.   Tom Brown has the<br \/>\ncorporate power to enter into and perform this Agreement and the transactions<br \/>\ncontemplated by this Agreement, including the necessary corporate power<br \/>\nregarding the issuance and payment of the Exchange Consideration as<br \/>\ncontemplated herein.  The execution, delivery and performance of this<br \/>\nAgreement, and the transactions contemplated hereby, have been duly and validly<br \/>\nauthorized by all necessary corporate action on the part of Tom Brown.  This<br \/>\nAgreement constitutes the valid and binding obligations of Tom Brown,<br \/>\nenforceable in accordance with its terms.<\/p>\n<p>         6.3     No Violations.  The execution, delivery and performance of<br \/>\nthis Agreement by Tom Brown, and the transactions contemplated by this<br \/>\nAgreement, will not violate (a) any provision of the certificate of<br \/>\nincorporation or bylaws of Tom Brown, (b) any material agreement or instrument<br \/>\nto which Tom Brown is a party or by which Tom Brown or any of its properties<br \/>\nare bound, (c) any judgment, order, ruling, or decree applicable to Tom Brown<br \/>\nas a party in interest, or (d) any law, rule, or regulation applicable to Tom<br \/>\nBrown.<\/p>\n<p>         6.4     Consents and Approvals.  No consent, approval, order, or<br \/>\nauthorization of, registration, declaration, or filing with, or permit (other<br \/>\nthan any filings required under the 1933 Act, the 1934 Act or the Hart Scott<br \/>\nAct) from any Governmental Authority is required other than Bankruptcy Court<br \/>\napproval by or with respect to Tom Brown in connection with the execution and<br \/>\ndelivery of this Agreement by Tom Brown or the consummation by Tom Brown of the<br \/>\ntransactions contemplated hereby, except for those expressly contemplated<br \/>\nherein.<\/p>\n<p>         6.5     Tom Brown SEC Documents.  Tom Brown has made available to<br \/>\nPresidio a true and complete copy of the Tom Brown SEC Documents, which are all<br \/>\nthe documents (other than preliminary material) that Tom Brown was required to<br \/>\nfile with the SEC since January 1, 1995.  As of their respective dates, the Tom<br \/>\nBrown SEC Documents complied in all material respects with the requirements of<br \/>\nthe 1933 Act or the 1934 Act, as the case may be, and the rules and regulations<br \/>\nof the SEC promulgated thereunder applicable to such Tom Brown SEC Documents,<br \/>\nand none of the Tom Brown SEC Documents contained any untrue statement of a<br \/>\nmaterial fact or omitted to state a material fact required to be stated therein<br \/>\nor necessary to make the statements therein, in light of the circumstances<br \/>\nunder which they were made, not misleading.<\/p>\n<p>         6.6     Financial Statements.  The Tom Brown Financial Statements were<br \/>\nprepared in accordance with GAAP applied on a consistent basis during the<br \/>\nperiods involved (except as may be<\/p>\n<p>                                      -43-<br \/>\n   86<br \/>\nindicated in the notes thereto or, in the case of unaudited statements, as<br \/>\npermitted by Rule 10-01 of Regulation S-X of the SEC) and fairly present in<br \/>\naccordance with applicable requirements of GAAP (subject, in the case of the<br \/>\nunaudited statements, to normal, recurring adjustments, none of which will be<br \/>\nmaterial) the consolidated financial position of Tom Brown and its consolidated<br \/>\nsubsidiaries as of their respective dates and the consolidated results of<br \/>\noperations and the consolidated cash flows of Tom Brown and its consolidated<br \/>\nsubsidiaries for the periods presented therein.<\/p>\n<p>         6.7     Capital Structure.<\/p>\n<p>                 (a)      The authorized capital stock of Tom Brown is as set<br \/>\n         forth in Schedule 6.7.<\/p>\n<p>                 (b)      At the close of business on June 30, 1996, (i) there<br \/>\n         were issued and outstanding 21,124,694 shares of Tom Brown Common<br \/>\n         Stock and (ii) no shares of Tom Brown Common Stock were held by Tom<br \/>\n         Brown as treasury stock.  Except as set forth in this Section 6.7(b)<br \/>\n         or as otherwise disclosed in the Tom Brown SEC Documents or set forth<br \/>\n         in Schedule 6.7, and except for 1,000,000 issued and outstanding<br \/>\n         shares of preferred stock of Tom Brown and options to acquire shares<br \/>\n         of common stock of Tom Brown issued to officers, directors and<br \/>\n         employees of Tom Brown or its subsidiaries (covering not more than<br \/>\n         1,924,800 shares of Tom Brown Common Stock), there are outstanding as<br \/>\n         of the date of this Agreement (i) no shares of capital stock or other<br \/>\n         equity securities of Tom Brown, (ii) no securities of Tom Brown or any<br \/>\n         other person convertible into or exchangeable or exercisable for<br \/>\n         shares of capital stock or other equity securities of Tom Brown, and<br \/>\n         (iii) no subscriptions, options, warrants, calls, or rights (including<br \/>\n         preemptive rights, commitments, understandings, or agreements) to<br \/>\n         which Tom Brown is a party or by which it is bound obligating Tom<br \/>\n         Brown to issue, deliver, sell, purchase, redeem, or acquire shares of<br \/>\n         capital stock or other equity securities of Tom Brown (or securities<br \/>\n         convertible into or exchangeable or exercisable for shares of capital<br \/>\n         stock or other equity securities of Tom Brown) or obligating Tom Brown<br \/>\n         to grant, extend, or enter into any such subscription, option,<br \/>\n         warrant, call, right, commitment, understanding, or agreement.<\/p>\n<p>                 (c)      All outstanding shares of Tom Brown capital stock<br \/>\n         are, and (when issued) the Exchange Common Stock will be, validly<br \/>\n         issued, fully paid, and nonassessable and not subject to any<br \/>\n         preemptive right.<\/p>\n<p>                 (d)      As of the date of this Agreement, there is no<br \/>\n         stockholder agreement, voting trust, or other agreement or<br \/>\n         understanding to which Tom Brown is a party or by which it is bound<br \/>\n         relating to the voting of any shares of the capital stock of Tom Brown<br \/>\n         except as set forth in Schedule 6.7.<\/p>\n<p>         6.8     Claims and Litigation.   Except as set forth in the Tom Brown<br \/>\nSEC Documents or in Schedule 6.8, there is no suit, action, claim, or inquiry<br \/>\nby any person or entity or by any administrative agency or governmental body<br \/>\nand no legal, administrative or arbitration proceeding pending or, to Tom<br \/>\nBrown&#8217;s knowledge, threatened against Tom Brown or any affiliate of Tom Brown<br \/>\nwhich has or will materially affect Tom Brown&#8217;s ability to consummate the<br \/>\ntransactions contemplated by this Agreement.<\/p>\n<p>                                      -44-<br \/>\n   87<br \/>\n         6.9     Financing.  Tom Brown has, or has obtained commitments to<br \/>\nobtain, funds or other consideration, as required, sufficient to pay the Cash<br \/>\nConsideration in accordance with this Agreement.  True and complete copies of<br \/>\nsuch commitments have been furnished to Presidio.<\/p>\n<p>                                  ARTICLE VII<\/p>\n<p>                    NATURE OF REPRESENTATIONS AND WARRANTIES<\/p>\n<p>         7.1     Limited Recourse.  If prior to the Closing, there is<br \/>\ndiscovered a breach of any of the representations and warranties contained in<br \/>\nArticles V and VI of this Agreement, then the only recourse that a party shall<br \/>\nhave for such breach is an exercise of the rights provided in Article X.<\/p>\n<p>         7.2     Nonsurvival of Representations, Warranties, Covenants, and<br \/>\nAgreements.  None of the representations, warranties, covenants, and agreements<br \/>\ncontained in this Agreement or in any instrument delivered pursuant to this<br \/>\nAgreement shall survive the Closing, except for the agreements contained in<br \/>\nSections 4.15, 4.22, 4.23, 4.24, and 4.25 and the agreements delivered pursuant<br \/>\nto Section 4.12.<\/p>\n<p>                                  ARTICLE VIII<\/p>\n<p>                             CONDITIONS TO CLOSING<\/p>\n<p>         8.1     Conditions Precedent to the Obligations of Presidio.  The<br \/>\nobligations of Presidio to consummate the transactions contemplated by this<br \/>\nAgreement are subject to satisfaction at or prior to Closing of each of the<br \/>\nfollowing conditions (any one or more of which may be waived in writing by<br \/>\nPresidio):<\/p>\n<p>                 (a)      The Confirmation Order, in form and substance<br \/>\n         reasonably acceptable to Presidio, confirming the Plan of<br \/>\n         Reorganization shall have been entered by the Bankruptcy Court and the<br \/>\n         Confirmation Order shall have become a Final Order.<\/p>\n<p>                 (b)      The Confirmation Order shall recognize and declare<br \/>\n         Tom Brown as a &#8220;successor&#8221; to Presidio pursuant to Sections 1125(e)<br \/>\n         and 1145(a)(1) of the Bankruptcy Code.<\/p>\n<p>                 (c)      All Plan Documents and other applicable corporate<br \/>\n         documents necessary or appropriate to the implementation of the Plan<br \/>\n         of Reorganization shall have been executed, delivered, and where<br \/>\n         applicable, filed with the appropriate Governmental Authorities.<\/p>\n<p>                 (d)      On the Closing Date, each of the representations and<br \/>\n         warranties of Tom Brown contained in this Agreement shall be true and<br \/>\n         correct in all material respects at and as of such time; and on the<br \/>\n         Closing Date Tom Brown shall deliver to Presidio a certificate to such<br \/>\n         effect signed by an authorized officer of Tom Brown, except that such<br \/>\n         certificate may<\/p>\n<p>                                      -45-<br \/>\n   88<br \/>\n         state that the information provided therein is given to the best<br \/>\n         information, knowledge, and belief of the authorized representative<br \/>\n         signing the same.<\/p>\n<p>                 (e)      Each of the obligations of Tom Brown to be performed<br \/>\n         on or before the Closing Date pursuant to the terms of this Agreement<br \/>\n         shall have been duly performed in all material respects on the Closing<br \/>\n         Date; and on the Closing Date Tom Brown shall have delivered to<br \/>\n         Presidio a certificate to such effect signed by an authorized officer<br \/>\n         of Tom Brown, except that such certificate may state that the<br \/>\n         information provided therein is given to the best information,<br \/>\n         knowledge, and belief of the authorized representative signing the<br \/>\n         same.<\/p>\n<p>                 (f)      The necessary and material consents and approvals of<br \/>\n         all Governmental Authorities and others shall have been obtained and<br \/>\n         remain in effect, and all required waiting periods under the Hart<br \/>\n         Scott Act and the rules and regulations promulgated thereunder<br \/>\n         relating to this Agreement and the transactions contemplated hereby<br \/>\n         shall have expired.<\/p>\n<p>                 (g)      No Governmental Authority shall have issued an<br \/>\n         injunction, order, decree, or ruling or taken any other action<br \/>\n         restraining or preventing the consummation of the transactions<br \/>\n         contemplated hereby that shall not have been vacated, withdrawn,<br \/>\n         cancelled, or otherwise voided.<\/p>\n<p>                 (h)      The Exchange Common Stock shall have been authorized<br \/>\n         for listing on NASDAQ, subject only to official notice of issuance.<\/p>\n<p>                 (i)      The written opinion of Presidio&#8217;s financial advisors<br \/>\n         referred to in Section 5.26 shall have been reconfirmed in writing as<br \/>\n         of the Closing Date as if given as of such date and shall not have<br \/>\n         been withdrawn or revoked or modified in any material respect.<\/p>\n<p>                 (j)      The New D&amp;O Insurance shall be in full force and<br \/>\n         effect.<\/p>\n<p>         8.2     Conditions Precedent to the Obligations of Tom Brown.  The<br \/>\nobligations of Tom Brown to consummate the transactions contemplated by this<br \/>\nAgreement are subject to satisfaction at or prior to Closing of the following<br \/>\nconditions (any one or more of which may be waived in writing by Tom Brown):<\/p>\n<p>                 (a)      The Confirmation Order, in form and substance<br \/>\n         reasonably acceptable to Tom Brown, confirming the Plan of<br \/>\n         Reorganization shall have been entered by the Bankruptcy Court and the<br \/>\n         Confirmation Order shall have become a Final Order.<\/p>\n<p>                 (b)      The Confirmation Order shall recognize and declare<br \/>\n         Tom Brown as a &#8220;successor&#8221; to Presidio pursuant to Sections 1125(e)<br \/>\n         and 1145(a)(1) of the Bankruptcy Code.<\/p>\n<p>                 (c)      All Plan Documents and other applicable corporate<br \/>\n         documents necessary or appropriate to the implementation of the Plan<br \/>\n         of Reorganization shall have been executed, delivered, and where<br \/>\n         applicable, filed with the appropriate Governmental Authorities.<\/p>\n<p>                                      -46-<br \/>\n   89<br \/>\n                 (d)      On the Closing Date, each of the representations and<br \/>\n         warranties of Presidio contained in this Agreement shall be true and<br \/>\n         correct in all material respects at and as of such time and each of<br \/>\n         the obligations of Presidio to be performed on or before the Closing<br \/>\n         Date pursuant to the terms of this Agreement shall have been duly<br \/>\n         performed in all material respects on the Closing Date, except to the<br \/>\n         extent that any such breach or failure to perform does not give rise<br \/>\n         to the right of Tom Brown to terminate this Agreement pursuant to<br \/>\n         clause (iii) of Section 9.1(c).  On the Closing Date Presidio shall<br \/>\n         have delivered to Tom Brown a certificate regarding such<br \/>\n         representations, warranties and obligations signed by an authorized<br \/>\n         representative of Presidio, except that such certificate may state<br \/>\n         that the information provided therein is given to the best<br \/>\n         information, knowledge, and belief of the authorized representative<br \/>\n         signing the same.<\/p>\n<p>                 (e)      The necessary and material consents and approvals of<br \/>\n         all Governmental Authorities, the Presidio Securityholders (to the<br \/>\n         extent required under the Plan of Reorganization or applicable law)<br \/>\n         and others shall have been obtained and remain in effect, and all<br \/>\n         required waiting periods under the Hart Scott Act and the rules and<br \/>\n         regulations promulgated thereunder relating to this Agreement and the<br \/>\n         transactions contemplated hereby shall have expired.<\/p>\n<p>                 (f)      No Governmental Authority shall have issued an<br \/>\n         injunction, order, decree, or ruling or taken any other action<br \/>\n         restraining or preventing the consummation of the transactions<br \/>\n         contemplated hereby, that shall not have been vacated, withdrawn,<br \/>\n         cancelled, or otherwise voided.<\/p>\n<p>                 (g)      This Agreement and all other agreements and letter<br \/>\n         agreements contemplated under this Agreement or otherwise entered into<br \/>\n         between Tom Brown or any Affiliate of Tom Brown and Presidio or any<br \/>\n         Affiliate of Presidio in connection with the transactions contemplated<br \/>\n         by this Agreement shall have been assumed in their entirety and<br \/>\n         without modification thereto (except to the extent such modification<br \/>\n         shall have been consented to in writing by Tom Brown) pursuant to<br \/>\n         Section 365 or Section 1123(b)(2), as applicable, of the Bankruptcy<br \/>\n         Code on or before the Confirmation Date.<\/p>\n<p>                 (h)      On the Closing Date, none of the Major Assets shall<br \/>\n         be subject to any Liens other than (i) Permitted Encumbrances and (ii)<br \/>\n         Liens arising through Tom Brown or as a result of Tom Brown&#8217;s actions.<\/p>\n<p>                 (i)      The Plan of Reorganization and the Confirmation Order<br \/>\n         shall provide that as of the Closing Date each of the Presidio Parties<br \/>\n         and their respective creditors and holders of equity interests (the<br \/>\n         &#8220;Releasing Parties&#8221;) will be deemed to forever release, waive and<br \/>\n         discharge, and to be enjoined from asserting, to the fullest extent<br \/>\n         permitted under applicable law, all claims (as defined in Section<br \/>\n         101(5) of the Bankruptcy Code), demands, debts, rights, causes of<br \/>\n         action, and liabilities (collectively, the &#8220;Released Claims&#8221;) in<br \/>\n         connection with or related to this Agreement, the Reorganization<br \/>\n         Cases, the Presidio Parties, or the Plan of Reorganization whether<br \/>\n         such Released Claims are liquidated or unliquidated, fixed or<br \/>\n         contingent, matured or unmatured, known or unknown, foreseen or<br \/>\n         unforeseen, then existing<\/p>\n<p>                                      -47-<br \/>\n   90<br \/>\n         or thereafter arising, that are based in whole or in part on any act,<br \/>\n         omission, or other occurrence taking place on or prior to the Closing<br \/>\n         Date and that may be asserted by or on behalf of the Releasing Parties<br \/>\n         against Tom Brown or its respective agents, advisors, attorneys and<br \/>\n         representatives (including current and former directors, officers,<br \/>\n         employees, members and professionals) acting in such capacity.<\/p>\n<p>                 (j)      Presidio shall, upon application or motion therefor<br \/>\n         filed with the Bankruptcy Court, have obtained a Final Order (which<br \/>\n         may be a part of the Confirmation Order) authorizing the assumption by<br \/>\n         the applicable Presidio Party under Section 365 or Section 1123(b)(2)<br \/>\n         of the Bankruptcy Code of the Designated Contracts and such Final<br \/>\n         Order shall provide (as contemplated in the Plan of Reorganization)<br \/>\n         that (i) the mere occurrence of a Bankruptcy Event (which for purposes<br \/>\n         of this Section 8.2(j) shall include Presidio West Virginia) and (ii)<br \/>\n         the insolvency or financial condition of a Presidio Party prior to the<br \/>\n         Closing, shall not constitute a basis for the removal of a Presidio<br \/>\n         Party as operator under any of the Designated Contracts.<\/p>\n<p>                 (k)      The Bar Date Order, in a form and substance<br \/>\n         reasonably acceptable to Tom Brown, shall have been entered by the<br \/>\n         Bankruptcy Court and shall have become a Final Order.<\/p>\n<p>                                   ARTICLE IX<\/p>\n<p>                                  TERMINATION<\/p>\n<p>         9.1     Termination Rights.  This Agreement may be terminated and the<br \/>\nExchange may be abandoned at any time prior to the Closing (provided that the<br \/>\nright of Tom Brown to terminate pursuant to clause (iii) of Section 9.1(c)<br \/>\nshall not be exercisable by Tom Brown subsequent to the fifth day following the<br \/>\ndate on which the Confirmation Order becomes a Final Order), whether before or<br \/>\nafter the approval of the Exchange or Plan of Reorganization by the Presidio<br \/>\nSecurityholders as follows:<\/p>\n<p>                 (a)      By mutual written consent of Tom Brown and Presidio;<\/p>\n<p>                 (b)      By either Tom Brown or Presidio if:<\/p>\n<p>                          (i)     the Closing has not occurred on or before the<br \/>\n                 first anniversary of the commencement of Presidio&#8217;s<br \/>\n                 Reorganization Case (provided, however, that the right to<br \/>\n                 terminate this Agreement pursuant to this clause (i) shall not<br \/>\n                 be available to any party whose breach of this Agreement has<br \/>\n                 been the cause of or resulted in the failure of the Closing to<br \/>\n                 occur on or before such date); or<\/p>\n<p>                          (ii)    any Governmental Authority shall have issued<br \/>\n                 an injunction, order, decree, or ruling or taken any other<br \/>\n                 action restraining or preventing the<\/p>\n<p>                                      -48-<br \/>\n   91<br \/>\n                 consummation of the transactions contemplated by this<br \/>\n                 Agreement and such order, decree, ruling, or other action<br \/>\n                 shall have become final and non-appealable;<\/p>\n<p>                 (c)      By Tom Brown if:<\/p>\n<p>                          (i)     the board of directors of Presidio shall fail<br \/>\n                 to recommend approval of the Exchange at the time the<br \/>\n                 Disclosure Statement is first mailed to the Presidio<br \/>\n                 Securityholders or if such recommendation of approval, if<br \/>\n                 made, is amended in a manner adverse to Tom Brown or withdrawn<br \/>\n                 thereafter or if Presidio elects not to consummate the<br \/>\n                 Exchange as a result of the condition set forth in Section<br \/>\n                 8.1(i) not having been satisfied;<\/p>\n<p>                          (ii)    Presidio has notified Tom Brown that it is<br \/>\n                 prepared to enter into a binding agreement to effect an<br \/>\n                 Alternative Transaction described in Section 4.20(c);<\/p>\n<p>                          (iii)   (x) there has been one or more breaches of<br \/>\n                 the representations and warranties made by Presidio in Article<br \/>\n                 V of this Agreement or a failure of Presidio to perform or<br \/>\n                 comply with one or more covenants or agreements contained in<br \/>\n                 this Agreement, (y) Tom Brown has given Presidio written<br \/>\n                 notice of the existence of each such breach or failure at<br \/>\n                 least ten (10) business days prior to the then scheduled<br \/>\n                 Confirmation Date and such breach or failure is not resolved<br \/>\n                 or cured on or before the Confirmation Date and (z) if the<br \/>\n                 Exchange were to be consummated without such breaches or<br \/>\n                 failures (individually or together with any other breaches or<br \/>\n                 failures) being so resolved or cured and, as a result thereof,<br \/>\n                 such breach or failure would cause Tom Brown to suffer or<br \/>\n                 sustain damages in an amount greater than $3,000,000, (for<br \/>\n                 purposes of this clause (iii), the amount of damages that<br \/>\n                 would be suffered or sustained by Tom Brown shall be<br \/>\n                 calculated (1) after taking into consideration and reducing<br \/>\n                 (to the extent that such have not previously been considered<br \/>\n                 in determining the existence of such breach or failure) such<br \/>\n                 damages for (A) amounts that have been reimbursed or paid<br \/>\n                 under insurance coverage maintained by the Presidio Parties or<br \/>\n                 any other person or amounts as to which an insurance company<br \/>\n                 or other insuring entity has acknowledged its obligation to<br \/>\n                 reimburse or pay and (B) the amount of any reserves<br \/>\n                 established in the Presidio Financial Statements for the<br \/>\n                 Liability or event giving rise to damages and (2) by netting<br \/>\n                 against the aggregate of all such damages (A) the amount by<br \/>\n                 which (I) the actual recovery (through the date of any such<br \/>\n                 determination of aggregate damages) of accounts receivable<br \/>\n                 reflected on the balance sheet forming a part of the Presidio<br \/>\n                 Financial Statements exceeds (II) the stated value of such<br \/>\n                 accounts receivable on such balance sheet, and (B) the amount<br \/>\n                 by which (I) any Liability reflected on such balance sheet<br \/>\n                 exceeds (II) the amount for which such Liability is liquidated<br \/>\n                 prior to the date of any such determination of aggregate<br \/>\n                 damages);<\/p>\n<p>                          (iv)    INTENTIONALLY LEFT BLANK;<\/p>\n<p>                                      -49-<br \/>\n   92<br \/>\n                          (v)     the Tom Brown Trading Value is more than 120%<br \/>\n                 of the Common Share Value; provided, however, Tom Brown shall<br \/>\n                 not have the right to terminate this Agreement pursuant to<br \/>\n                 this clause (v) if prior to the Closing Date Presidio elects<br \/>\n                 to reduce the number of shares of Exchange Common Stock to a<br \/>\n                 number of shares equal to the quotient obtained by dividing<br \/>\n                 (A) the Aggregate Common Share Value by (B) 120% of the Common<br \/>\n                 Share Value;<\/p>\n<p>                          (vi)    the Initial Order (A) shall not have been<br \/>\n                 entered within fifteen (15) business days after the occurrence<br \/>\n                 of a Bankruptcy Event and (B) shall not have become a Final<br \/>\n                 Order within twenty-five (25) business days after a Bankruptcy<br \/>\n                 Event; or<\/p>\n<p>                          (vii)   the Confirmation Order, in form and substance<br \/>\n                 reasonably acceptable to Tom Brown and confirming the Plan of<br \/>\n                 Reorganization, shall not have been entered by the Bankruptcy<br \/>\n                 Court on or before November 15, 1996 or the Confirmation Order<br \/>\n                 shall not have become a Final Order on or before December 13,<br \/>\n                 1996 (as either of such dates shall be extended by the number<br \/>\n                 of days, if any, that Presidio&#8217;s solicitation of the<br \/>\n                 acceptance by the Presidio Securityholders of the Plan of<br \/>\n                 Reorganization may be delayed or extended by reason of (x) any<br \/>\n                 material change in or material events regarding Tom Brown and<br \/>\n                 which occur after the date of this Agreement and which are<br \/>\n                 required to be disclosed in the Disclosure Statement or in any<br \/>\n                 amendment or supplement to the Disclosure Statement or (y) the<br \/>\n                 providing of any additional disclosure concerning Tom Brown or<br \/>\n                 concerning the post-Closing business or financial condition of<br \/>\n                 any Presidio Party); provided, that Tom Brown shall not be<br \/>\n                 entitled to terminate this Agreement pursuant to this clause<br \/>\n                 (vii) unless Tom Brown has given Presidio prior written notice<br \/>\n                 of its intention to terminate this Agreement pursuant to this<br \/>\n                 clause (vii) within thirty (30) days after the above<br \/>\n                 applicable described date; or<\/p>\n<p>                          (viii)  the Reorganization Cases shall not have been<br \/>\n                 commenced on or before August 6, 1996.<\/p>\n<p>                          (d)     By Presidio if:<\/p>\n<p>                          (i)     there has been a breach of the<br \/>\n                 representations and warranties made by Tom Brown in Article VI<br \/>\n                 of this Agreement which is material to the financial condition<br \/>\n                 of Tom Brown or its ability to perform its obligations under<br \/>\n                 this Agreement or which adversely affects the benefits to be<br \/>\n                 received by Presidio under this Agreement at Closing or a<br \/>\n                 failure to perform or comply with any covenant or agreement<br \/>\n                 contained in this Agreement which adversely affects Presidio<br \/>\n                 or its ability to obtain the benefits contemplated by this<br \/>\n                 Agreement or which adversely affects the benefits to be<br \/>\n                 received by Presidio under this Agreement at Closing; provided<br \/>\n                 that Presidio shall not be entitled to terminate this<br \/>\n                 Agreement pursuant to this clause (i) unless (A) Presidio has<br \/>\n                 given Tom Brown written notice of the existence of such<\/p>\n<p>                                      -50-<br \/>\n   93<br \/>\n                 breach or failure and (B) Tom Brown has not resolved or cured<br \/>\n                 such breach or failure within ten (10) days of such notice;<\/p>\n<p>                          (ii)    Presidio has notified Tom Brown that Presidio<br \/>\n                 is prepared to enter into a binding definitive agreement to<br \/>\n                 effect an Alternative Transaction described in Section<br \/>\n                 4.20(c);<\/p>\n<p>                          (iii)   the Tom Brown Trading Value is less than 80%<br \/>\n                 of the Common Share Value; provided, however, Presidio shall<br \/>\n                 not have the right to terminate this Agreement pursuant to<br \/>\n                 this clause (iii) if prior to the Closing Date Tom Brown<br \/>\n                 elects to increase the number of shares of Exchange Common<br \/>\n                 Stock to a number of shares equal to the quotient obtained by<br \/>\n                 dividing (A) the Aggregate Common Share Value by (B) 80% of<br \/>\n                 the Common Share Value; or<\/p>\n<p>                          (iv)    Presidio has notified Tom Brown that the<br \/>\n                 board of directors of Presidio, in the exercise of their<br \/>\n                 fiduciary duties, has determined not to recommend or to<br \/>\n                 withdraw their prior recommendation of the Exchange to the<br \/>\n                 Presidio Securityholders or if Presidio elects not to<br \/>\n                 consummate the Exchange as a result of the condition set forth<br \/>\n                 in Section 8.1(i) not having been satisfied.<\/p>\n<p>         9.2     Payment of Termination Expenses and Fee.<\/p>\n<p>                 (a)      If this Agreement is terminated pursuant to either<br \/>\n         clause (i) or (ii) of Section 9.1(c) or clauses (ii) or (iv) of<br \/>\n         Section 9.1(d), then Presidio shall pay Tom Brown an amount equal to<br \/>\n         $6,000,000 (the &#8220;Termination Fee&#8221;).<\/p>\n<p>                 (b)      If this Agreement is terminated pursuant to either<br \/>\n         clauses (i), (ii), (iii) or (vi) of Section 9.1(c) or clauses (ii) or<br \/>\n         (iv) of Section 9.1(d), then Presidio shall pay Tom Brown an amount<br \/>\n         equal to the documented out-of-pocket costs and expenses (including<br \/>\n         attorneys&#8217;, financial advisors&#8217;, accountants&#8217;, engineers&#8217; and other<br \/>\n         consultants&#8217; fees) incurred by Tom Brown from and after November 15,<br \/>\n         1995 (the &#8220;Termination Expenses&#8221;) in connection with (x) the<br \/>\n         preparation, negotiation of the Plan of Reorganization, the Disclosure<br \/>\n         Statement and this Agreement, (y) the due diligence efforts of Tom<br \/>\n         Brown and their professionals and advisors in connection with the<br \/>\n         contemplated transactions and (z) the pursuit of the transactions<br \/>\n         contemplated hereby and thereby; provided, however, that the<br \/>\n         aggregated amount of Termination Expenses that Tom Brown shall be<br \/>\n         entitled to recoup herein shall not exceed $3,000,000.<\/p>\n<p>                 (c)      Subject to the approval of the Bankruptcy Court, the<br \/>\n         Termination Expenses and Termination Fee shall constitute first<br \/>\n         priority administrative expenses of Presidio pursuant to section<br \/>\n         364(c)(1) of the Bankruptcy Code and shall be secured by a lien on<br \/>\n         property of the Presidio estate pursuant to section 364(c)(2) of the<br \/>\n         Bankruptcy Code and shall be paid upon the earlier of (i) the closing<br \/>\n         of the transactions contemplated by an accepted Alternative<br \/>\n         Transaction and (ii) entry of any order of the Bankruptcy Court<br \/>\n         directing payment by Presidio of such amounts.  From and after a<br \/>\n         termination by Presidio<\/p>\n<p>                                      -51-<br \/>\n   94<br \/>\n         pursuant to Section 9.1(d)(ii) until payment in full of the<br \/>\n         Termination Fee and the Termination Expenses, interest shall accrue on<br \/>\n         any unpaid portion of the Termination Fee and the Termination Expenses<br \/>\n         at a rate per annum equal to the prime commercial lending rate<br \/>\n         announced from time to time by the Chase Manhattan Bank, N.A.<\/p>\n<p>                 (d)      If the Initial Order has not been entered by the<br \/>\n         Bankruptcy Court as contemplated in Section 4.5(c), then Tom Brown<br \/>\n         shall be entitled to assert as liquidated damages the Termination Fee<br \/>\n         and the Termination Expenses as a claim under section 502 and\/or<br \/>\n         503(b) of the Bankruptcy Code.<\/p>\n<p>         9.3     Effect of Termination.   If this Agreement is terminated<br \/>\npursuant to Section 9.1, this Agreement shall become void and of no further<br \/>\nforce or effect (except for the provisions of Sections 4.14 and 9.2 which shall<br \/>\ncontinue in full force and effect).<\/p>\n<p>                                   ARTICLE X<\/p>\n<p>                                 MISCELLANEOUS<\/p>\n<p>         10.1    Counterparts.  This Agreement may be executed in one or more<br \/>\ncounterparts, each of which shall be deemed an original instrument, but all<br \/>\nsuch counterparts together shall constitute but one agreement.<\/p>\n<p>         10.2    Notice.  All notices which are required or may be given<br \/>\npursuant to this Agreement shall be sufficient in all respects if given in<br \/>\nwriting and delivered personally, by telecopy or by registered or certified<br \/>\nmail, postage prepaid, as follows:<\/p>\n<p>         IF TO PRESIDIO PARTIES:<\/p>\n<p>                 Presidio Oil Company<br \/>\n                 5613 DTC Parkway, Suite 750<br \/>\n                 P.O. Box 6525<br \/>\n                 Englewood, Colorado 80155-6525<br \/>\n                 Attention: Robert L. Smith<br \/>\n                 Telephone:       (303) 773-0100<br \/>\n                 Fax:             (303) 850-1111<\/p>\n<p>                                      -52-<br \/>\n   95<br \/>\n                 IF TO TOM BROWN:<\/p>\n<p>                 Tom Brown, Inc.<br \/>\n                 508 West Wall, Suite 500<br \/>\n                 Midland, Texas 79702<br \/>\n                 Attention:       Donald L. Evans<br \/>\n                 Telephone:       (915) 682-9715<br \/>\n                 Fax:             (915) 683-9327<\/p>\n<p>All notices shall be deemed to have been duly given at the time of receipt by<br \/>\nthe party to which such notice is addressed.<\/p>\n<p>         10.3    Governing Law.   THIS AGREEMENT AND THE LEGAL RELATIONS<br \/>\nBETWEEN THE PARTIES SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE<br \/>\nLAWS OF THE STATE OF TEXAS WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAWS<br \/>\nOTHERWISE APPLICABLE TO SUCH DETERMINATIONS.<\/p>\n<p>         10.4    Captions.  The captions in this Agreement are for convenience<br \/>\nonly and shall not be considered a part of or affect the construction or<br \/>\ninterpretation of any provision of this Agreement.<\/p>\n<p>         10.5    Assignment.  No party shall assign all or any part of this<br \/>\nAgreement, nor shall any party assign or delegate any of its rights or duties<br \/>\nhereunder, without the prior written consent of the other party and any<br \/>\nassignment made without such consent shall be void.  Subject to the preceding<br \/>\nsentence, this Agreement shall be binding upon and inure to the benefit of the<br \/>\nparties hereto and their respective successors and assigns.<\/p>\n<p>         10.6    Entire Agreement; Third Party Beneficiaries.  This Agreement<br \/>\n(together with the Confidentiality Agreement and the documents and instruments<br \/>\ndelivered by the parties in connection with this Agreement) (a) constitutes the<br \/>\nentire agreement and supersedes all other prior agreements and understandings,<br \/>\nboth written or oral, among the parties with respect to the subject matter<br \/>\nhereof and (b) except for Sections 4.15, 4.22, 4.24 and 4.25, is solely for the<br \/>\nbenefit of the parties hereto and their respective successors, legal<br \/>\nrepresentatives, and assigns and does not confer on any other person any rights<br \/>\nor remedies hereunder.  The provisions of Sections 4.15, 4.22, 4.24 and 4.25<br \/>\nare intended to be for the benefit of, and shall be enforceable by, the parties<br \/>\nhereto and each of the other parties who are beneficiaries of the rights and<br \/>\nobligations arising thereunder and their respective heirs and representatives.<\/p>\n<p>         10.7    Amendment.<\/p>\n<p>                 (a)      At any time prior to the Closing Date this Agreement<br \/>\n         may be amended or modified in any respect by the parties by an<br \/>\n         agreement in writing executed in the same manner as this Agreement.<\/p>\n<p>                                      -53-<br \/>\n   96<br \/>\n                 (b)      No supplement, modification, waiver or termination of<br \/>\n         this Agreement shall be binding unless executed in writing by the<br \/>\n         party to be bound thereby.<\/p>\n<p>         10.8    Exhibits and Schedules.  All Exhibits and Schedules attached<br \/>\nto or referred to in this Agreement are incorporated into and made a part of<br \/>\nthis Agreement.<\/p>\n<p>         10.9    Severability.  Any term or provision of this Agreement that is<br \/>\ninvalid or unenforceable in any jurisdiction shall, as to such jurisdiction, be<br \/>\nineffective to the extent of such invalidity or unenforceability without<br \/>\nrendering invalid or unenforceable the remaining terms and provisions of this<br \/>\nAgreement or affecting the validity or enforceability of any of the terms or<br \/>\nprovisions of this Agreement in any other jurisdiction.  If any provision of<br \/>\nthis Agreement is so broad as to be unenforceable, such provision shall be<br \/>\ninterpreted to be only so broad as is enforceable.<\/p>\n<p>                                      -54-<br \/>\n   97<br \/>\n         IN WITNESS WHEREO, this Agreement has been signed by each of the<br \/>\nparties hereto, all as of the date above written.<\/p>\n<table>\n<s>                                                      <c><br \/>\n                                                         PRESIDIO OIL COMPANY<\/p>\n<p>                                                         By:<br \/>\n                                                            &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\n                                                         Name:<br \/>\n                                                              &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\n                                                         Title:<br \/>\n                                                               &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>                                                         PRESIDIO EXPLORATION, INC.<\/p>\n<p>                                                         By:<br \/>\n                                                            &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\n                                                         Name:<br \/>\n                                                              &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\n                                                         Title:<br \/>\n                                                         &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>                                                         PRESIDIO WEST VIRGINIA, INC.<\/p>\n<p>                                                         By:<br \/>\n                                                            &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\n                                                         Name:<br \/>\n                                                              &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\n                                                         Title:<br \/>\n                                                               &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>                                                         PALISADE OIL, INC.<\/p>\n<p>                                                         By:<br \/>\n                                                            &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\n                                                         Name:<br \/>\n                                                              &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\n                                                         Title:<br \/>\n                                                               &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>                                                         TOM BROWN, INC.<\/p>\n<p>                                                         By:<br \/>\n                                                            &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\n                                                         Name:<br \/>\n                                                              &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\n                                                         Title:<br \/>\n                                                               &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\n<\/c><\/s><\/table>\n<p>                                      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