Brazil's energy and petroleum sector features several prominent domestic and international oil corporations operating deep-water offshore exploration blocks and domestic refining facilities. The undisputed market leader is the state-controlled multinational Petrobras (Petróleo Brasileiro S.A.), which dominates deep-water pre-salt oil production. Major international energy giants—commonly known as supermajors—also maintain massive operational footprints in Brazil, including Shell, TotalEnergies, Equinor, Repsol Sinopec, and BP, partnering closely in joint ventures to extract vast hydrocarbon reserves off the Brazilian coast.