Oil and gas have been found in a field in the deepwater Sergipe-Alagoas basin in the Atlantic, Brazilian state-controlled oil giant Petrobras said.
Tests confirmed the presence of petroleum and "good quality" gas at the Moita Bonita well, which is at a depth of 2,775 meters (9,098 feet).
The well is about 85 kilometers (53 miles) off the coast of Aracaju, the capital of Alagoas state, Petrobras said in a statement posted on its Web site.
The Moita Bonita well is in block BM-SeAl-10, which Petrobras is operating without the participation of foreign oil companies.
"The company plans to continue studies in the area, including an analysis of rock and fluid data obtained at the well, with the goal of filing the Discovery Evaluation Plan" required by the National Petroleum, Natural Gas and Biofuels Agency, or ANP, the company said.
Petrobras, Brazil's largest corporation, is one of the world's fastest-growing oil companies. EFE