Tesoro Petroleum Corp. said it reached a...

Tesoro Petroleum Corp. said it reached a tentative $20.6-million settlement with the U.S. Internal Revenue Service to resolve all pending income tax issues for the company’s 1981 through 1985 fiscal years. The settlement calls for San Antonio-based Tesoro to pay $10.6 million in additional taxes and $10 million in interest, the company said. Tesoro said the tentative agreement with the IRS is subject to review by the joint congressional committee on taxation.