CNBC | US oil closes below $40 on big stockpile build CNBC Oil prices were down more than 3 percent on Wednesday after the U.S. government reported a crude build three times above analysts expectations. The increase marked the sixth straight week of record high inventories, rekindling worries of a glut that ... Oil Slides Further on Inventory Addition Oil extends losses after big stockbuild in US crude Oil extends losses with US crude supply up a 6th week |