January 20, 2006



United States Securities and Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549



Attn: Ms. April Sifford                       Mr. Yong Choi
      Branch Chief                            Division of Corporation Finance
      Division of Corporation Finance         (mail stop 7010)
      (mail stop 7010)


      Re:      Apache Corporation
               Form 10-K for the year ended December 31, 2004
               Definitive 14A filed on March 28, 2005
               File No. 1-4300


Ladies and Gentlemen:

This letter provides our response to the comment contained in your letter of
January 5, 2006. We believe that this response should answer the issues
raised in you comment. Please let me know if you have follow up questions or
need further clarification. My phone number is (713-296-6615).


                                        Respectfully,

                                        /s/ THOMAS L. MITCHELL

                                        Thomas L. Mitchell
                                        Vice President and Controller





Apache Corporation
January 20, 2006
page 2


Form 10-K for the year ended December 31, 2004

Statement of Consolidated Cash Flows, page F-5

2.       We note your response to the prior comment number two from our letter
         dated November 9, 2005. We believe a VPP obligation assumed in a
         business combination should be valued at fair value pursuant to
         paragraphs 35 and B99 of FASB Statement 141. The fair value would be
         the price a third party would require to assume that obligation alone,
         which would be the estimated cost to produce the VPP reserves plus a
         normal profit margin. Also, it is our view that the VPP is an
         obligation to provide the lifting "service". Therefore, as production
         occurs, or the service is provided, the reversal of the VPP liability
         should be to revenue and the cost of providing the service along with
         your share of the production costs should be reflected as lease
         operating expense on a gross basis. Please provide SAB 99 analysis to
         determine if any corrections would be material to years 2003, 2004 and
         2005 and to future periods for the VPP obligations related to the BP
         and Shell acquisitions in 2003 and the Anadarko acquisition in 2004.

         SUPPLEMENTAL RESPONSE

         We agree with the staff's view that the VPP obligation assumed should
         be established at fair value pursuant to paragraphs 35 and B99 of
         Statement 141. As such, we recorded an obligation at fair value for the
         future lifting costs associated with delivering the VPP volumes and
         recorded that amount as a portion of the purchase price for the net
         properties acquired.

         Paragraphs 35 and B99, however, do not deal with accounting for
         settlement of the fair value obligation established. Based on the
         comment, it appears that the staff views the performance of our
         obligation as a revenue generating service. However, paying a portion
         of our purchase price by incurring costs to lift the VPP owner's
         volumes does not, in our opinion, represent a revenue generating
         service with an offset to lease operating expense. We are not in the
         business of providing such a service to generate revenue. We are in the
         business of acquiring properties, which properties in this instance
         were burdened by an obligation to lift the VPP volumes. The fair value
         of the lifting obligation was consideration in our transaction, was
         treated as such in our economic evaluation and was reflected as such in
         our property balance. We never held title to the VPP volumes and do not
         take title to them during the sales process. We simply deliver them to
         the VPP owner who sells them for their own account. The only income
         statement effect of this transaction relates to the depletion of the
         consideration in our property balance against the acquired volumes as
         they are produced.

         We believe that this situation is understood by analogy to the
         settlement of an asset retirement obligation assumed in a business
         combination. In the case of an abandonment obligation, for example, we
         have a legal requirement to abandon oil and gas properties at the end
         of their life. When we settle the obligation by abandoning the
         property, the costs incurred are simply a reduction of the asset
         retirement obligation previously recorded. It would be inappropriate to
         recognize revenue for this activity. Just as an asset retirement






Apache Corporation
January 20, 2006
page 3


         obligation assumed in an acquisition is a legal requirement to abandon
         oil and gas properties, a VPP assumed in an acquisition is a
         contractual legal obligation settled by incurring lifting costs. It
         would be equally inappropriate to recognize revenue for the activity of
         settling either of these similar obligations.

         At a recent SEC staff meeting in December 2005, the staff discussed the
         classification in the income statement of previously deferred revenue.
         The staff specifically referred to legal obligations to be performed
         that were assumed in connection with a business combination, as
         discussed in EITF Issue No. 01-3, "Accounting in a Business Combination
         for Deferred Revenue of an Acquiree." The staff reminded registrants to
         consider the characteristics of the ongoing activity to which the
         obligation relates in determining the appropriateness of the
         classification as either revenue or contra expense. The specific
         example cited was a registrant assuming an obligation to sell inventory
         of an acquired company. The guidance provided in this example was to
         reflect the sale of inventory as revenue. In the staff's example, the
         company has title to the inventory and must perform a service to
         transfer ownership to another party. We would agree that this
         represents a revenue generating activity. The key difference between
         this example and the VPP obligation is that we do not own title to the
         mineral rights or reserves in the ground. We are not turning an
         inventory item into a sale. The VPP obligation is a commitment to lift
         the volumes, and as stated above, the fundamental basis of this
         obligation is to incur a cost, not to perform a separate service.

         Under the staff's proposed accounting treatment, both our revenues and
         our operating expenses would be inflated and misleading to investors.

         As indicated in our previous response, there is considerable accounting
         literature supporting our accounting for this transaction. By grossing
         up the lifting costs in revenue, we would be in direct conflict with
         FASB Statement 19 which "establishes standards of financial accounting
         and reporting for the oil and gas producing activities of a business
         enterprise." This statement along with guidance in EITF 00-01 directs
         companies in the extractive industry to present only their
         proportionate share of the revenues and expenses associated with
         producing the oil and gas reserves. Settling the assumed liability
         through lease operating costs effectively prevents the income statement
         from being inflated with revenues and costs that are not related to our
         proportionate share of the services. Under our accounting treatment,
         lease operating expenses and oil and gas revenues relate only to our
         proportionate share of the oil and gas producing activity from the
         properties in which we own a mineral interest.

         Although we do not view this activity as a "service" generating
         revenue, nor are we aware of any accounting guidance supporting this
         view, if the staff's proposed treatment were adopted, the accounting
         treatment for such a service activity would be net under EITF 99-19.
         EITF 99-19, "Reporting Revenues Gross as a Principal versus Net as an
         Agent", provides that if a company performs a service as an agent or
         broker without assuming the risks and rewards of ownership of the
         goods, sales should be reported on a net basis. As stated above, Apache






Apache Corporation
January 20, 2006
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         never owned these reserves nor do we ever take title to them. We are an
         agent in the terms of EITF 99-19, so even if this was reflected as a
         "service", the activities would be reported on a net basis. Further,
         Rule 4-10 (c)(6)(iv) of Regulation S-X, prohibits full cost companies
         from recognizing income associated with contractual services performed
         on behalf of investors in oil and gas producing activities managed by
         the registrant or an affiliate. This would result in any "market
         premium" being reflected as an adjustment to the full cost pool, which
         effectively results in the same accounting presentation we are
         currently using.

         We understand your "lifting service" view. However, the economic
         substance of the transaction and authoritative literature (FASB
         Statement 141, FASB Statement 19, EITF 00-1, EITF 95-03 and by analogy
         FASB Statement 143) support our accounting treatment of this
         transaction. It is further clear to us under the authoritative guidance
         of EITF 99-19 that should you request that we reflect this transaction
         as a "lifting service," the accounting would not deviate from its
         current presentation in our public reporting. Finally, the past and
         future amortization of the obligation related to our Shell and Anadarko
         transactions (the BP transaction did not involve assumption of a VPP)
         is not significant as indicated below:

                  $5 million in 2003
                  $28 million in 2004
                  $49 million in 2005
                  $37 million in 2006
                  $25 million in 2007
                  $8 million in 2008