X0202 4 2005-12-20 0 0000006769 APACHE CORP APA 0001240210 BENSON MICHAEL J ONE POST OAK CENTRAL 2000 POST OAK BLVD., SUITE 100 HOUSTON TX 77056-4400 0 1 0 0 Vice President Common Stock 2005-12-20 4 M 0 682. 0.00 A 3862.435 D Common Stock 2005-12-20 4 F 0 249. 69.50 D 3613.435 D Common Stock 6.181 I Held by Trustee of 401(k) Plan Restricted Stock Units 0.00 2005-12-20 4 M 0 682. 0.00 D Common Stock 682. 6133. 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 12/18/05 of restricted stock units under employer plan - data provided by plan administrator on 12/20/05. Vesting occurs 25% per year over four years. Shares withheld to cover required tax withholding on vesting of restricted stock. With tandem tax withholding right One share of Apache common stock for each phantom stock unit. Cheri L. Peper, Attorney-in-Fact 2005-12-21