The 4.84bn-peso (US$440mn) contract involves works for development, infrastructure and maintenance of non-associated gas fields, according to Mexico's federal procurement website Compranet.
Works are scheduled to begin in May and will be carried out over 15 years.
Earlier this month, PEP awarded a similar contract to Spain's Cobra for the Nejo block in the Burgos basin and declared the bidding process for the Euro block void.
Pemex did not immediately respond to a BNamericas request asking why the Euro tender was declared void or if bidding would be re-launched.
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