Oil prices surge 15% after attack on Saudi facilities hits global supply

NEW YORK (Reuters) - Oil prices surged more than 15% to their highest level in nearly four months at the open on Sunday after an attack on Saudi Arabia's oil facilities on Saturday that knocked out more than 5% of global oil supply.Brent crude futures jumped more than 19% to a session high of $71.95 a barrel at the opening, while U.S. crude futures surged more than 15% to a session high of $63.34 a barrel. Both benchmarks rose to the highest since May. Prices were up about 12% by 6:29 p.m. (2229..