Tesoro Elects Rodney Frank Chase to Board of Directors

"The Board of Directors and our management team are very fortunateto have an individual with Rodney's industry and financial experienceand expertise on our board," said Bruce Smith, Chairman, President andCEO of Tesoro Corporation.

Chase spent his entire 39-year career with BP PLC. He heldpositions within the upstream and downstream segments of the industryin Australia, Europe and North America. His background includespositions in shipping, refining, marketing, distribution, oil tradingand gas as well as finance and strategic planning at the corporateexecutive level.

In 1986, he was appointed Chief Executive Officer of BP FinanceInternational and Group Treasurer. In that position he played a keyrole in the firm's acquisition of the Standard Oil Company andBritoil, as well as the divestiture of BP's mining interests.

From 1999 to 2003 Chase served as Deputy Chief Executive Officerand President, Exploration, Production, Refining and Marketing.

In 2003, Chase joined Lehman Brothers Ltd. in London, England asSenior Advisor for the U.S. and Europe. He currently serves as aNon-Executive Chairman for Petrofac Ltd. in the UK. In addition, heserves on the corporate boards for Computer Sciences Corporation,Nalco Company and Tesco PLC.

Chase resides in Naples, Florida. He holds a bachelor's degree inhistory from the University of Liverpool in Liverpool, England.

About Tesoro's Board Members

Tesoro's other board members include: Patrick J. Ward, RetiredChairman, President and Chief Executive Officer of Caltex PetroleumCorporation, serves on Tesoro's compensation and governancecommittees; William J. Johnson, President of JonLoc Inc., a petroleumconsulting firm, chair of the company's governance committee andserves on the compensation and audit committees; Steven H. Grapstein,Lead Director of Tesoro Corporation and chair of the company's auditcommittee, is the Chief Executive Officer of Kuo Investment Company;Bruce A. Smith, Chairman, President and Chief Executive Officer ofTesoro Corporation; Donald H. Schmude, Retired Vice President, Texacoand Retired President and Chief Executive Officer of Texaco Refiningand Marketing, Inc., chair of the company's environmental, health &safety committee and also serves on the finance committee; A. MauriceMyers, Retired Chairman, President and Chief Executive Officer ofWaste Management, Inc., chair of the company's compensation committeeand serves on the governance committee; Michael E. Wiley, RetiredChairman and Chief Executive Officer of Baker Hughes Incorporated,serves on the environmental, health & safety and finance committees,and Robert W. Goldman, Retired Senior Vice President and ChiefFinancial Officer of Conoco, Inc., chair of the finance committee andserves on the audit and environmental, health & safety committees.

About Tesoro

Tesoro Corporation, a Fortune 200 company headquartered in SanAntonio, Texas, is an independent refiner and marketer of petroleumproducts. Tesoro operates six refineries in the western United Stateswith a combined rated crude oil capacity of more than 560,000 barrelsper day. Tesoro's retail marketing system includes over 475 brandedretail stations, of which over 200 are company operated under theTesoro(R) and Mirastar(R) brands. Tesoro's commercial marketing systemincludes sales of jet fuel and marine fuels.