Oil refiners across the U.S. are being forced to throttle back operations amid a historic plunge in gasoline demand and prices. Plants representing more than 10% of U.S. fuel-making capacity have cut back. Exxon Mobil Corp. has slowed rates at facilities in Texas and Louisiana, while others around Los Angeles and Philadelphia are taking similar action to stem a growing glut of gasoline, diesel and jet fuel. Phillips 66 said Tuesday many of its refineries are processing minimum amounts of crude. Refiners are acutely exposed to the financial impact of the spreading coronavirus. Orders to shelter at home are grounding flights and keeping drivers off the roads, crushing fuel demand and profit margins. Companies delayed planned maintenance to stem the outbreak, adding to the fuel glut, and now are left with little choice but to […]