Chuck Flagg has been named senior vice president of system optimization and will focus on extracting the synergies and efficiencies from the company’s seven-refinery system and its marketing channels of trade.

Mr Finnerty joined Tesoro in 2003 and was elected executive vice president and COO in 2006. Prior to joining Tesoro, Mr Finnerty held several positions within the ChevronTexaco system in the areas of logistics and trading.

Mr Lewis joined Tesoro in 1999 as senior vice president of strategic projects and has 38 years of refining experience. Prior to joining Tesoro, he worked in and consulted for the refining industry, including managing Tesoro’s Hawaii refinery for a prior owner.

Mr Flagg joined Tesoro in 2005 as senior vice president of supply and optimization and has 33 years of experience in the refining industry. Prior to that, Mr Flagg held several positions within the Texaco and Shell systems including optimizing Shell’s West Coast system.

Bruce Smith, chairman, president and CEO of Tesoro, said: We are a dynamic organization that challenges our employees to take on new responsibilities. We believe these moves provide tremendous development opportunities for our employees and strengthen the company’s management for our shareholders.