MarketWatch | Oil under $47 a barrel as US supply hits 80-year high MarketWatch SAN FRANCISCO (MarketWatch) — Oil futures dropped under $47 a barrel Thursday after a weekly supply report showed an increase in crude inventories that was four times larger than Wall Street expected, sending U.S. crude stockpiles to their highest in ... Oil slips on high supplies Oil Prices Slide as Supplies Grow Oil Slips as U.S. Crude Stockpiles Surge Most in 14 Years |