George P. Shaffner

Mr. Shaffner is senior vice president of Transportation and Logistics for Marathon Petroleum Company LLC. In this capacity, he oversees the Company's Terminal, Transport & Marine organization, Marathon Pipe Line LLC operations, Marketing & Transportation Engineering and the Company's Product Quality organization.

He joined Marathon in 1981 and was named to his current position on June 1, 2010. Prior to that Mr. Shaffner held a number of key engineering and managerial positions in the Company's pipeline, marketing and refining operations, including serving as maintenance manager of the Detroit, Michigan, refinery from 1990 until 1992 when he was appointed engineering manager at the Garyville, Louisiana, refinery. In 1994, he was named refining reliability manager. Mr. Shaffner was appointed division manager of the Company's St. Paul Park, Minnesota refinery in 2003 and became Detroit Refining Division manager in October 2006.

He graduated from Rose-Hulman Institute of Technology with a bachelor of science degree in mechanical engineering in 1981. He also completed the Wharton School Advanced Management Program at the University of Pennsylvania in 2007.

Mr. Shaffner is currently Marathon's representative on the API's Refining Committee.