3R Petroleum Óleo e Gás S.A. engages in the exploration and production of oil and natural gas in Brazil. The company holds 100% interest in the BAR-M-387 that is located in the Barreirinhas basin in the Northeast State of Maranhão. It also holds portfolio of assets that includes the Macau, Salina Cristal, Lagoa Aroeira, Porto Carão, Sanhaçu and Carcará fields located in the Potiguar Basin; Água Grande, Bonsucesso, Fazenda Alto das Pedras, Pedrinhas, Pojuca, Rio Pojuca, and Tapiranga and Tapiranga Norte located in the Recôncavo Basin; and Polo Papa-Terra in the Campos Basin. The company was founded in 2010 and is headquartered in Rio De Janeiro, Brazil.