Bloomberg | Russia's Top Oil Producer Sees Risk of Shale Neutering OPEC Deal Bloomberg Russia's most powerful oil boss said the deal between OPEC and its partners to curb output won't stabilize the crude market over the long term as U.S. shale fills the supply shortfall. “A decrease in production under an agreement between OPEC and ... Russian oil CEO: US oil output likely to offset OPEC cut Russia's Sechin questions oil cuts deal as US ups output |