Oil prices eased on Wednesday after government data showed U.S. crude oil stockpiles rose unexpectedly last week, prompting investor concerns of excess supplies. Brent crude futures settled 54 cents,

U.S. crude oil inventories posted an unexpected build last week, while product stocks fell amid higher demand, according to data from the U.S. Energy Information Administration

World shares were mostly lower Thursday while oil prices fell more than $2 as traders bet on a possible U.S.-Iran nuclear deal. U.S. benchmark crude oil lost $2.37 to $60.78 per barrel. Brent crude, the international standard,