Talk of incorporating private participation into the Peru NOC goes back to at least 2001.
Mexico's state oil company has disclosed four contracts it signed with the disgraced Brazilian engineering firm as it assists the attorney general's office with its investigations.
The selection of a company to partner with NOC Pemex is now due to take place on October 4.
Authorities to hold quarterly bid rounds for acreage in the Neuquén basin, home to the Vaca Muerta shale, and Mulichinco and Lajas tight sand, formations.
The deal hands Brookfield and its partners control of a 2,500km pipeline network connecting Rio de Janeiro, São Paulo and Minas Gerais with Brazil's offshore oil and gas fields and the Gasbol pipeline from Bolivia.
Officials present projects designed to help deepen and diversify Mexico's pool of oil and gas industry professionals.
State-run oil company GyP del Neuquén seeks to award seven blocks.