Brazilian state-owned oil firm Petróleo Brasileiro (Petrobras) has made a hydrocarbon discovery in the wildcat well of block C-M-411 in the pre-salt Campos Basin offshore in Brazil’s Rio de Janeiro state.

The hydrocarbon discovery was made at the well 1-BRSA-1377-RJS, informally known as Urissanê. It is located approximately 200km from the coast and at a water depth of 2,950m.

Petrobras said it will analyse the well data to better assess the potential and undertake exploratory activities in the area.

The firm acquired the block in the 14th Bidding Round of the National Agency of Petroleum, Natural Gas and Biofuels (ANP), under the concession regime, in September 2017.

It was acquired together with blocks C-M-210, C-M-277, C-M-344, C-M-346, and C-M-413.

Petrobras operates the block C-M-411 with a 50% stake while the remaining 50% interest is held by ExxonMobil Exploração Brasil.

Last year, Petrobras made a hydrocarbons discovery in Block C-M-657, in the ultra-deep waters of the Campos Basin.

The 1-BRSA-1376D-RJS (Naru) exploration well is located 308km from Rio de Janeiro, and in a water depth of 2,892m.

Petrobras is the operator of the C-M-657 block and owns a 30% stake in it. Other partners include ExxonMobil (40%) and Equinor (30%).