EXHIBIT 23.1



            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


We consent to the incorporation by reference in the Registration Statements
(Form S-3 Nos. 333-57785, 333-75633, 333-32580, and 333-105536 and Form S-4 No.
333-107934 and Form S-8 Nos. 33-31407, 33-37402, 33-53442, 33-59721, 33-59723,
33-63817, 333-04059, 333-25201, 333-26255, 333-32557, 333-36131, 333-53961,
333-31092, 333-48758, 333-97403, 333-102330, 333-103758, 333-105871, and
333-106213) of Apache Corporation and in the related Prospectuses, of our report
dated March 11, 2005, with respect to the consolidated financial statements of
Apache Corporation, Apache Corporation management's assessment of the
effectiveness of internal control over financial reporting, and the
effectiveness of internal control over financial reporting of Apache
Corporation, included in this Annual Report (Form 10-K) for the year ended
December 31, 2004.





                                                /s/ Ernst & Young LLP

                                                ERNST & YOUNG LLP



Houston, Texas
March 11, 2005