Oil prices eked out a gain Monday as investors weighed concerns about ample crude-oil supplies against hopes that Greek debt negotiations would succeed. Light, sweet crude for July delivery settled up 7 cents, or 0.1%, at $59.68 a barrel on the New York Mercantile Exchange. The July contract expired at settlement Monday. The more-actively traded August contract settled up 41 cents, or 0.7%, at $60.38 a barrel. Brent, the global benchmark, rose 32 cents, or 0.5%, to $63.34 a barrel on ICE Futures Europe. U.S. oil prices have hovered near $60 a barrel for weeks as investors weigh the currently oversupplied market against growing demand and cutbacks in new drilling. The physical market for crude oil remains weaker than many analysts expected, damping some investors’ hopes that prices would recover quickly this summer. “The second quarter of 2015 is winding down […]