Oil prices fell on Wednesday after data from an industry group showed a larger-than-expected build in U.S. crude inventories last week, fanning worries over global oversupply, even as a slightly weaker dollar provided some support. Brent crude for December delivery had fallen 14 cents to $48.57 a barrel by 1.03 a.m. ET after settling up 10 cents in the previous session. U.S. crude for December delivery dropped 27 cents at $46.02 a barrel after settling up one cent at $46.29.