Petróleo Brasileiro S.A. - Petrobras (BOVESPA:PETR4) has rejected the most recent bid by an EIG Global Energy partners, Ouro Preto Óleo e Gás S.A. to purchase a pair of shallow-water oil clusters, two sources with direct knowledge of the matter said, potentially derailing a major divestment late in the process. Ouro Preto Óleo. Petrobras, unhappy with Ouro Preto's price cut, has rejected the consortium's updated bid, according to the sources, who requested anonymity to discuss confidential matters.

EIG and Ouro Preto declined to comment. Petrobras did not respond to a request for comment. The next steps in the Pampo and Enchova divestiture are unclear.

One of the sources said the Ouro Preto consortium may try to come back to the table to resume bilateral negotiations with Petrobras. Should Petrobras re-open the process to other potential buyers or open a fresh bidding round, it could create an opportunity for firms like Trident Energy Limited, backed by Warburg Pincus International LLC. Trident did not respond to a request for comment.