Big Oil may have to play a part in cutting supply after the landmark agreement between OPEC and non-OPEC producers last week. BP Plc has the highest exposure in the 13 countries that have so far said they will cut output, according to Rystad Energy AS data. The likely participation by Russia, where BP holds a 20 percent stake in Rosneft PJSC, puts it ahead of rivals Total SA, Royal Dutch Shell Plc, Exxon Mobil Corp., Eni SpA and Chevron Corp., according to the data. The Organization of Petroleum Exporting Countries, which controls about 40 percent of the world’s oil, took it on itself to boost prices and revive the industry with the first production cuts in eight years. Oil companies, which have seen profits smashed and projects delayed or canceled in the downturn, are headed for their best annual share performance since 2009. But even as the deal […]