Exhibit 23.4

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the reference to our firm under the caption “Experts” in Amendment No. 5 to the Registration Statement (Form S-4 No. 333-166964) and related Prospectus of Apache Corporation for the registration of its common stock and to the incorporation by reference therein of our reports dated February 26, 2010, with respect to the consolidated financial statements of Apache Corporation, and the effectiveness of internal control over financial reporting of Apache Corporation, included in its Annual Report (Form 10-K), as amended, for the year ended December 31, 2009, filed with the Securities and Exchange Commission.

/s/ Ernst & Young LLP

Houston, Texas
September 30, 2010