ENERGY & ENVIRONMENT

Chevron Says Tengiz Operations to Start April 1: The Republic of Kazakhstan and Chevron Corp. have reached agreement “on all significant issues,” the oil company announced, and will begin full-scale operations in early 1993. Some industry observers had begun to speculate that the deal was bogging down in various demands made by the former Soviet republic. The joint venture to develop the Tengiz and Korolev oil fields, near the Caspian Sea, is the biggest deal yet involving a large U.S.-based oil company and a major republic of the Commonwealth of Independent States. The Tengiz field produces about 65,000 barrels a day. Expected peak production of the project, by 2010, is 700,000 barrels a day.