X0303 4 2010-08-14 0 0000006769 APACHE CORP APA 0001196213 MERELLI F H 1700 LINCOLN STREET SUITE 1800 DENVER CO 80203 1 0 0 0 Director Common Stock 2010-08-14 4 M 0 647. 0 A 12446. D Common Stock 15886. I By IRA Restricted Stock / Units 0 2010-08-14 4 M 0 647. 0 D Common Stock 647. 0 D Restricted Stock / Units 0 2010-08-14 4 M 0 1818. 0 A Common Stock 1818. 1818. D The shares of common stock of Apache are deemed to also represent certain preferred stock purchase rights ('Rights'). The Rights are not currently exercisable or separately tradable and presently are evidenced by certificates for shares of the common stock. Value attributable to such Rights, if any, is reflected in the market price of the common stock. Vesting on 08/14/2010 of restricted stock units granted to each of Apache's non-employee directors under 2007 Omnibus Equity Compensation Plan. With tandem tax withholding right Restricted stock units granted to each of Apache's non-employee directors under 2007 Omnibus Equity Compensation Plan, which plan was approved by stockholders in May 2007. The units vest 50% thirty days after grant date and 50% twelve months after grant date. Cheri L. Peper, Attorney-in-Fact 2010-08-17