CNBC | S&P closes lower after oil drops more than 2% again CNBC U.S. stocks closed mostly lower on Wednesday as oil prices failed to rebound from a sharp fall during the previous session. "It just seems to be a fair amount of uncertainty as to where the bottom is," said Daniel Deming, managing director at KKM ... Global stocks fall as supply worry hits oil; US dollar climbs Stocks hold steady as oil's slide halts |