CNBC | Oil extends gains, US crude stocks up 2.3M barrels CNBC The freeze idea emerged after prices fell below $30 a barrel in January from as high as $115 in June 2014 on global oversupply spurred by U.S. production growth and rising output from oil exporter group OPEC. The International Energy Agency, which ... Oil Prices Bolstered by Weaker Dollar Oil prices rebound on less than expected build in stocks What Low Oil Prices Really Mean |