PRIO is one of Brazil's largest independent oil and natural gas producers, focusing on the exploration, development, and production of oil and gas properties, primarily in the Campos Basin, Rio de Janeiro. The company operates significant oil fields, including the Polvo Field, Frade Field, and Albacora Leste Field. PRIO employs advanced reservoir management techniques to enhance production efficiency and extend the life of its fields.

The company specializes in acquiring producing assets and optimizing their performance through cost reduction and efficient management. PRIO's product portfolio includes crude oil and natural gas, which support various sectors such as energy, power, and transportation. It utilizes Floating Production Storage and Offloading (FPSO) platforms for its offshore operations.

PRIO is publicly traded on the Novo Mercado segment of BM&FBOVESPA, reflecting its commitment to high corporate governance standards. Its Global Depositary Shares are also traded on the TSX Venture Exchange in Canada, aligning with international regulatory standards.