CNBC | Oil plunges 11% in just 2 weeks, shrugging off Iran sanctions and Saudi tension CNBC First, the supply of oil held in U.S. storage tanks has risen sharply over the last four weeks. U.S. crude stockpiles are up by 22.3 million barrels through last week. That's the biggest increase over that four-week period since 2015, when storage ... Oil tallies a two session decline of more than 4% Oil Prices Could Fall Further on Rising US Oil Supplies, OPEC Report Says How High Can Oil Prices Go? |