Exhibit 23.8
DEGOLYERAND MACNAUGHTON
5001 SPRING VALLEY ROAD
SUITE 800 EAST
DALLAS, TEXAS 75244
August 27, 2010
Dr. Juan José Súarez Coppel
Director General
Petróleos Mexicanos
Avenida Marina Nacional No. 329
Colonia Petróleos Mexicanos C.P. 11311
México
Dear Dr. Súarez Coppel:
We hereby consent to all references to DeGolyer and MacNaughton as set forth under the heading “Experts” in this Amendment No. 1 to the Registration Statement on Form F-4 filed by Petróleos Mexicanos (Form F-4). Form F-4 incorporates by reference our report dated June 22, 2010, which describes our review of the estimates made by Petróleos Mexicanos of proved oil, condensate, natural gas, and oil equivalent reserves owned by the United Mexican States (Mexico) as of January 1, 2010, for 68 fields located offshore of Mexico in the Southwest Marine Region (our Report). Our Report was originally filed as Exhibit 10.6 to the Annual Report on Form 20-F of Petróleos Mexicanos for the year ended December 31, 2009. Petróleos Mexicanos has represented that the estimates included in our Report were prepared in accordance with the reserves definitions of Rules 4-10(a) (1)-(32) of Regulation S-X of the United States Securities and Exchange Commission.
Very truly yours, |
/S/ DEGOLYERAND MACNAUGHTON |
DeGOLYER and MacNAUGHTON Texas Registered Engineering Firm F-716 |