X0202 4 2008-05-08 0 0000006769 APACHE CORP APA 0001276257 OLSON W KREGG 2000 POST OAK BLVD, SUITE 100 HOUSTON TX 77056-4400 0 1 0 0 Sr. Vice President Phantom Stock Units 0.00 2008-05-08 4 M 0 600. 0.00 A Common Stock 600. 8602.9198 D Phantom Stock Units 0.00 2008-05-08 4 F 0 8.7 137.66 D Common Stock 8.7 8594.2198 D Restricted Stock Units 0.00 2008-05-08 4 M 0 600. 0.00 D Common Stock 600. 9725. D One share of Apache common stock for each phantom stock unit. Exempt acquisition pursuant to Rule 16b-3(d). Accrued under the deferred compensation provisions of Apache's Deferred Delivery Plan - data provided by the plan administrator on 05/08/08. 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. Stock units (each deemed to be equivalent to one share of Apache common stock) used to cover required tax withholding related to deferral upon 05/06/08 vesting of restricted stock - data provided by plan administrator on 05/08/08. With tandem tax withholding right One share of Apache common stock for each restricted stock unit. Vesting on 05/06/08 of restricted stock units under employer plan - data provided by plan administrator on 05/08/08. Vesting occurs 25% per year over four years. Cheri L. Peper, Attorney-in-Fact 2008-05-09