Tesoro Corporation (“Tesoro”) (NYSE: TSO) today announced the promotion of Charles S. Parrish to Executive Vice President, General Counsel and Secretary.

In his role, Mr. Parrish is responsible for all legal affairs of the Company, leading Tesoro’s Legal Department and Contract Administration function, as well as the Business Ethics and Compliance office.

He joined Tesoro in 1994 and has served as Senior Vice President, General Counsel and Secretary since 2006.

Mr. Parrish contributes significant industry, legal and financial expertise as a member of Tesoro’s executive team. He works closely with the company’s finance and financial reporting teams on all matters related to the company’s capital structure and securities act reporting. In addition, Mr. Parrish provides valuable counsel to the company’s management and Board of Directors on corporate governance issues.

Before joining Tesoro, he worked in private practice with law firms in Houston and San Antonio, primarily representing commercial lenders with loan transactions, workouts and real estate matters.

Mr. Parrish received his bachelor’s degree in history from the University of Virginia and his juris doctor from the University of Houston Law School. He is a member of the State Bar of Texas and the American Bar Association.

About Tesoro

Tesoro Corporation, a Fortune 150 and a Global Fortune 500 company based in San Antonio, Texas, is an independent refiner and marketer of petroleum products. Tesoro operates seven refineries primarily in the western United States, with a combined crude oil capacity of approximately 664,000 barrels per day. Tesoro's retail marketing system includes more than 870 branded retail stations, of which more than 380 are company operated under the Tesoro®, Shell®, Mirastar® and USA Gasoline ™ brands. Tesoro’s commercial marketing system includes sales of jet fuel and marine fuels.

Tesoro Corporation
Lynn Westfall, 210-626-4697
SVP, External Affairs
Lynn.D.Westfall@tsocorp.com