ENERGY

Chevron Says Accounting Change to Lead to Loss: The San Francisco-based company said new accounting standards for oil reserves and other assets will force it to take a charge of $800 million, resulting in a fourth-quarter loss. About $680 million of the charge stems from implementation of Financial Accounting Standards Board rule No. 121, which changes the way corporations account for long-lived assets, such as oil fields. Chevron Corp. previously estimated the value of its reserves on a worldwide basis, while the new rule requires companies to use generally recognized units when estimating values. As a result, Chevron will estimate the value of each field, a company official said. Chevron shares closed up $1.50 at $54.50 on the New York Stock Exchange.