Ms Lerette continues to report to the executive vice president and chief administrative officer (CAO) for Tesoro. In addition to her human resources and facilities management responsibilities, Ms Lerette will also oversee procurement and aviation.

Mr Schwethelm also continues to report to the CAO. He is responsible for accounting, investor relations, treasury, information technology and the enterprise program office.

Mr Spendlove also reports to the CAO. In his new role, he oversees a newly formed function that includes enterprise risk, trading controls, business insurance, internal audit, credit and security.

Since 2004, Ms Lerette has held the role of vice president of human resources. Prior to that, she was vice president of communications and investor relations from 2001 to 2004. Ms Lerette joined Tesoro in 1981 and has held positions of increasing responsibility in investor relations and accounting, including budgeting and corporate financial reporting roles.

Mr Schwethelm was named vice president and CFO in June 2007 and prior to that, he held the position of vice president of finance and treasurer. He joined Tesoro in 1998 as manager of economics in the supply and optimization organization. He has also served as vice president of development and business analysis and vice president of shared services, a department he started before being named vice president and controller in 2003. In March 2006, Mr Schwethelm was named vice president of finance and treasurer.

Prior to his new position, Mr Spendlove has held positions as vice president of asset enhancement and planning, vice president of strategy and long-planning, vice president and controller, and vice president of finance and treasurer. Prior to joining Tesoro in 2002, he served as vice president of corporate planning and investor relations for Ultramar Diamond Shamrock Corporation.