On April 16, Petrobras (NYSE: PBR) discovered oil in the Espírito Santo Basin, onshore Brazil.

The wildcat well 1-BRSA-1302-ES (ANP nomenclature), known as Guayacan, found oil in reservoirs 711 m deep after well drilling reached 1,312 m. This well is part of the Tabebuia discovery evaluation plan and is about 120 km from the city of Vitória.

Brazil’s Petrobras is the operator and detains 100% of exploratory block ES-T-495. The discovery will be evaluated by formation tests, as part of the evaluation plan’s exploratory program.

Petrobras also said that day that it completed the formation test on well 3-BRSA-1286-SES (ANP nomenclature), in concession BM-SEAL-11, in ultradeep waters of Sergipe-Alagoas Basin.

Drilling confirmed two light oil- and gas-bearing compartments. The upper one is 44 m thick while the lower one is 11 m. The second represents a new discovery for the area. The well is 102.7 km from the city of Aracaju and 10.3 km from the discovery well, at a water depth of 2,467 m. Formation test results confirmed the 37 degree API light oil good reservoir productivity.

This is the third extension well at Farfan, which was discovered in October 2012. An announcement regarding the well’s initial drilling results was made on February 2 of this year.

The consortium, operated by Petrobras (60%) in partnership with IBV-Brasil (40%), will proceed with the discovery evaluation plan.