Pemex production was down by 24,000b/d between July and August.
The crisis-riven South American nation was a hot-button topic during talks between US President Donald Trump and his Colombian counterpart Iván Duque on Tuesday.
Mexico's upstream regulator also approved the exploration plans for area 11 and area 15.
The general director of Pemex, Carlos Treviño, launched the Management Evaluation System in the Cangrejera Petrochemical Complex
The subjects up for comment include direct and indirect sale of fuels from producers and importers to sellers.
Mexico Pacific Limited has obtained an permit to export natural gas from the US to Mexico and re-export it or sell it in Mexico as LNG.
Cofece will look into competition on railway lines leading to and from Mexico's petrochemical heartland in the southern part of Veracruz state.
Some US$5bn will be invested in local exploration and production projects aimed at meeting demand from Chinese importers, according to Venezuelan state media.