ENERGY

Pay Freeze at Chevron: Chevron Corp. Chairman Kenneth T. Derr announced in a New York meeting with 100 industry analysts that his salary and those of other officers and personnel of the San Francisco-based oil company were frozen as of April 1 at 1991 levels for three months. The freeze is part of extensive cost-cutting measures that, like those at many other oil companies, are aimed at cutting operating expenses. If the overall program is successful, a Chevron spokesman said, operating costs should be reduced by $600 million.