| William R. Klesse Born: c. 1947 Birthplace: Chatham, NJ
Gender: Male Race or Ethnicity: White Occupation: Business Nationality: United States Executive summary: CEO of Valero University: BS Chemical Engineering, University of Dayton University: MBA Finance, West Texas A&M University Administrator: Trustee, St. Mary's University Texas
Valero CEO (2006-)
Valero Vice Chairman (2006-07)
Valero EVP and COO (2003-06)
Valero EVP Refining and Commercial Operations (2001-03)
Ultramar Diamond Shamrock EVP Operations (1999-2001)
Ultramar Diamond Shamrock EVP Refining (1996-99)
Diamond Shamrock (1969-96)
Member of the Board of Valero (2005-, as Chairman, 2007-)
John McCain 2008 National Petrochemical & Refiners Association Past Chairman Rudy Giuliani Presidential Committee
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