UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:	August 31, 2011 9:30 A.M.

Form:	F-4
CIK: 0000932782 Company Name: MEXICAN PETROLEUM File Number: 333-175821
CIK: 0000932785 Company Name: PEMEX GAS & BASIC PETROCHEMICALS File Number: 333-175821-03
CIK: 0000932784 Company Name: PEMEX REFINING File Number: 333-175821-02
CIK: 0000932783 Company Name: PEMEX EXPLORATION & PRODUCTION File Number: 333-175821-01