3R Petroleum in talks to buy Petrobras' Polo Potiguar for over $1bn

Brazil's Petrobras is in talks with 3R Petroleum Oleo e Gas SA to sell a refinery and dozens of oil fields for more than $1 billion - a deal that would prove transformational for 3R if completed.In a securities filing, Petroleo Brasileiro SA, as the state-run company is formally known, said 3R...