U.S. oil prices barely held to small gains and global prices fell Tuesday as a revived dollar, a growing glut and pessimistic signs for demand all weighed on the market. Light, sweet crude for May delivery settled up six cents, or 0.1%, to $47.51 a barrel on the New York Mercantile Exchange. It had been as up as much as $1.11 to $48.56 a barrel Tuesday morning. Brent, the global benchmark, lost 81 cents, or 1.5%, to $55.11 a barrel on ICE Futures Europe. It had been up as much as much as 87 cents to $56.79 a barrel Tuesday morning. Oil prices moved in tandem with the dollar, a common phenomenon, especially in the past four months, analysts said. Dollar-priced commodities like oil become more expensive for holders of other currencies as the dollar appreciates. And a […]