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Exhibit 23.1
DEGOLYER AND MACNAUGHTON
5001 SPRING VALLEY ROAD
SUITE 800 EAST
DALLAS, TEXAS 75244
March 14, 2014
Mr. Daniel Gonzalez
YPFS.A.
Macacha Guemes 515
C1106BKK Buenos Aires
Argentina
Ladies and Gentlemen:
We hereby consent to the reference to DeGolyer and MacNaughton as set forth under the section “Internal Controls on Reserves and Reserves Audits,” and to the inclusion of our third-party letter report dated August 30, 2013, and as an exhibit in YPF S.A.’s report on Form 20-F for the year ended December 31, 2013, to be filed with the United States Securities and Exchange Commission (SEC).
Our third-party letter report contains our independent estimates of the proved crude oil, condensate, natural gas liquids, gasoline, marketable gas, and oil equivalent reserves as of October 1, 2013, of certain selected properties in the Gulf of Mexico, the Texas Panhandle region, and western Oklahoma in which YPF S.A. holds interests.
Very truly yours, |
DeGOLYER and MacNAUGHTON |
Texas Registered Engineering Firm F-716 |