Petrobras will sign a memorandum of understanding with Mexico's state-owned Pemex in June.
The technical cooperation agreement focuses on deepwater hydrocarbon exploration.
The partnership also targets production increases in mature oil fields.
Petrobras leverages its expertise to support these initiatives.
Mexican President Claudia Sheinbaum confirmed the agreement.
Petrobras representatives have already held working meetings with Mexican officials.
Brazilian President Luiz Inácio Lula da Silva proposed the alliance earlier in 2026.
The deal strengthens energy sector ties between the two nations.