Bloomberg China National Petroleum Corp plans to help complete a refinery in Rio de Janeiro that already cost Brazil’s state-controlled oil company Petrobras $14 billion before it was halted amid a widespread graft investigation. CNPC, as the Chinese producer is known, signed a letter of intent adding the Comperj refinery to a partnership the two companies signed last year. The …

Bloomberg Saudi Arabia’s sovereign wealth fund is considering a plan to inject up to $300 million into a troubled steel pipe factory co-owned by ArcelorMittal, according to people familiar with the matter. The Public Investment Fund is looking at doubling its stake in ArcelorMittal Tubular Products Jubail to 40 percent by buying new shares and converting debt to equity, the …

Bloomberg BP Plc has emerged as the front-runner to buy BHP Billiton Ltd.’s onshore oil and gas operations in the US, acco- rding to a person familiar with the matter. The London-based oil major has made the highest offer for the assets, which BHP prefers selling in a single package, said the person, who asked to not be identified because …