Brazilian state-owned oil giant Petrobras (NYSE: PBR), Latin America's largest energy company, announced on Friday, April 17, that it is expanding its offshore exploration into West Africa.
The company has signed an agreement to acquire a working interest in and assume operatorship of Block 3, located offshore São Tomé and Príncipe. Petrobras is partnering on the venture with Oranto Petroleum, Africa's largest privately held exploration and production company, owned by Nigerian billionaire Arthur Eze.
Petrobras Strategic Play in West Africa
Petrobras positions itself as a strategic player, having shown interest in investing in offshore exploration using its expertise in deep-water oil drilling. This is the first official announcement of an acquisition agreement since 2024, when the company initially expressed interest in investing in the African continent.
São Tomé and Príncipe has emerged as a highly promising frontier for new oil discoveries. Its Exclusive Economic Zone (EEZ) is strategically situated among three major regional producers: the Niger Delta to the north, the Douala and Rio Muni basins (Equatorial Guinea and Cameroon) to the east, and the salt basins of Gabon. Notably, the Gabonese basins share geological characteristics with the pre-salt fields off Brazil’s eastern coast, currently the largest and most prolific oil-producing region for both Petrobras and Brazil.
The Block 3 agreement aligns closely with Petrobras’s 2026-2030 Business Plan. The transaction remains subject to customary conditions precedent, including governmental and regulatory approvals in São Tomé and Príncipe.
