CNBC | Oil cracks $40 on global supply glut, may go to $30 CNBC The latest U.S. government data show that oil supplies continue to build, though at a slower pace in the past week than in the prior week. But the figures reinforced that the global oil supply glut — with some 3 billion barrels stockpiled worldwide ... Oil Prices Dip Below $40 a Barrel, Then Erase Losses Oil sinks back below $40 Oil down as US stockpiles edge up to near record highs |