X0202 4 2005-12-20 0 0000006769 APACHE CORP APA 0001242234 PRICE FLOYD R ONE POST OAK CENTRAL 2000 POST OAK BOULEVARD, SUITE 100 HOUSTON TX 77056-4400 0 1 0 0 Exec. Vice President Phantom Stock Units 0.00 2005-12-20 4 M 0 1102. 0.00 A Common Stock 1102. 12568.9779 D Phantom Stock Units 0.00 2005-12-20 4 F 0 15.979 69.50 D Common Stock 15.979 12552.9989 D Restricted Stock Units 0.00 2005-12-20 4 M 0 1102. 0.00 D Common Stock 1102. 12458. D One share of Apache common stock for each phantom stock unit. Exempt acquisition pursuant to Rule 16b-3(d) - accrued as of 12/18/05 under the deferred compensation provisions of Apache's Deferred Delivery Plan. Data provided by plan administrator on 12/20/05. 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 used to cover required tax withholding related to deferral upon 12/18/05 vesting of restricted stock. Data provided by plan administrator on 12/20/05. With tandem tax withholding right 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. Cheri L. Peper, Attorney-in-Fact 2005-12-21