Exhibit 23.5

DeGolyer and MacNaughton
5001 Spring Valley Road
Suite 800 East
Dallas, Texas 75244

Telephone

(214) 368-6391

FAX

(214) 369-4061

WWW.DEMAC.COM

November 12, 2010

Hess Corporation
1185 Avenue of the Americas
New York, New York 10036

Ladies and Gentlemen:

     We hereby consent to the incorporation by reference in this Amendment No. 2 to the Registration Statement on Form S-4 (including any amendments thereto) and the related prospectus to be filed by Hess Corporation with the United States Securities and Exchange Commission on or about November 12, 2010, with respect to issuance of shares of common stock of Hess Corporation, of the name DeGolyer and MacNaughton and of references to DeGolyer and MacNaughton as an independent petroleum engineering consulting firm, under the heading “Oil and Gas Reserves-Reserves Audit” and “Oil and Gas Reserves-Proved undeveloped reserves” in Hess Corporation’s Annual Report on Form 10-K for the year ended December 31, 2009 and of our third party letter report dated November 5, 2010, containing our opinion on the proved reserves attributable to certain properties owned by Hess Corporation, as of December 31, 2009, included as an exhibit to Amendment No. 1 to Hess Corporation’s Annual Report on Form 10-K/A for the year ended December 31, 2009. We further consent to the reference to this firm under the heading “Experts” in this Amendment No. 2 to the Registration Statement and the related prospectus.

Very truly yours,
 

/s/ DeGOLYER and MacNAUGHTON  

DeGOLYER and MacNAUGHTON
Texas Registered Engineering Firm F-716