The flag of the Organization of Petroleum Exporting Countries (OPEC) stands on a desk ahead of a news conference at the 175th Organization Of Petroleum Exporting Countries (OPEC) meeting in Vienna, Austria. (Photographer: Stefan Wermuth/Bloomberg)

Face it, OPEC. Russia Is No Longer Your Friend

(Bloomberg Opinion) -- Has OPEC reached the point where the benefit of bringing in outsiders to achieve its goals is outweighed by the difficulty of managing the expanded group? It certainly seems ...