Chevron said it expects to report lower profits.

The company said its first-quarter earnings will probably be lower than the $378 million it reported a year earlier, which came on revenue of $7.27 billion. The San Francisco-based firm’s chairman, George M. Keller, attributed the decline to low crude oil prices and low refining and retail sales. Keller also said he is moving more swiftly to consolidate staff and operations now that the Federal Trade Commission has lifted an order requiring the company to operate Gulf as a separate unit. Roughly 10,000 of the combined companies’ 80,000 jobs could be trimmed in all.