The Brazilian independent is also moving forward with work in the Atlanta field, having spud a horizontal well there on Sunday, Renato Bertani said on the sidelines of OTC Brasil in Rio de Janeiro.

Barra has a 30% stake in that project alongside operator Queiroz Galvao Exploration & Production (QGEP) on 30%, while OGX has 40%.

Barra has a 10% stake in the Petrobras-operated BM-S-8 block, home of the Carcara prospect, believed to be one of the largest pre-salt finds in Brazil yet.

The