Occidental Petroleum Corp. Business Contract

Occidental Petroleum Corp.

• Acknowledgment Letter - Effect of Write-Down on Return on Equity Incentive Award - Occidental Petroleum Corp. (Feb 21, 2012)
• Employment Agreement - President - Occidental Petroleum Corp. (Feb 21, 2012)
• Long-Term Incentive Award Agreement - Occidental Petroleum Corp. (Feb 21, 2012)
• Officers' Certificate - Occidental Petroleum Corp. (Feb 21, 2012)
• Certificate of Incorporation - Occidental Petroleum Corp. (Oct 17, 2009)
• Purchase and Sale Agreement - Amoco D.T. Co., Amoco X.T. Co, Amoco Y.T. Co, SWEPI LP, Shell Land & Energy Co, Shell Onshore Ventures Inc., Shell K2 Inc., Shell Everest Inc. and Occidental Petroleum Corp. (Oct 17, 2009)
• Note - Occidental Petroleum Corp. (Feb 21, 2012)
• Underwriting Agreement - Occidental Petroleum Corp. (Feb 21, 2012)