ENERGY

Chevron Switching to Reformulated Gasoline: The San Francisco-based oil company said it will spend about $370 million at its Richmond refinery, near San Francisco, and another $580 million at its El Segundo refinery to equip them to produce the new fuels required by tougher environmental standards set by the federal Clean Air Act and the California Air Resources Board. A Chevron executive noted that a National Petroleum Council study predicts that the federal law could increase costs to consumers by about 10 cents a gallon in 1995 and another 3 cents by 2000. Increases in California could be an additional 8 cents under the state’s even tighter laws.