U.S. oil futures fell to a new three-month low Thursday on fresh indications of a supply surplus, while global benchmark Brent ticked higher on production concerns. Light, sweet crude for August delivery settled down 50 cents, or 1%, at $50.91 a barrel on the New York Mercantile Exchange, the lowest settlement since April 9. Brent, the global benchmark, rose 46 cents, or 0.8%, to $57.51 a barrel on ICE Futures Europe. On Thursday, data provider Genscape Inc. reported that stockpiles in the key hub of Cushing, Okla., rose by nearly a million barrels between July 10 and 14, according to three market participants. U.S. oil prices erased early gains on the news. The U.S. benchmark slid Wednesday after inventory data showed total U.S. inventories of crude oil and petroleum products at a record high, even as refineries processed more crude than ever before into gasoline and other fuels. […]