Oil dropped over 2% on Thursday as a potential U.S.-Iran nuclear deal raised the prospect of increased global crude supply, and Wall Street indexes were mixed in choppy trading. European shares reversed losses to end higher,

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,

Wall Street is veering lower before the opening bell while oil prices are down more than $2 a barrel as traders bet on a possible U.S.-Iran nuclear deal. Futures for