CNBC | Oil falls below $50 for the first time in a year, heads for biggest monthly slide since 2008 CNBC Oil fell on Thursday, bringing losses for the month so far to 23 percent, marking its largest one-month fall since the depths of the financial crisis in 2008. A seemingly relentless rise in U.S. crude supply, together with Saudi Arabia's insistence ... Crude Oil Slides Below $50 for First Time in Over a Year Oil falls, heading for biggest monthly slide since 2008 Oil Prices Drop Like a Stone: Winners & Losers |