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Biography PhotoMichael C. Jennings
President, Chief Executive Officer and Chairman of the Board, HollyFrontier Corporation

Michael Jennings joined our Board of Directors in December of 2010. He is currently President, Chief Executive Officer, and Chairman of the Board of Directors for Frontier Oil Corporation, an independent oil refining and marketing company.

Beginning in 1995, Mr. Jennings was employed by Cameron International Corporation as Director, Acquisitions and Corporate Finance. From 1998 to 2000, he was Vice President Finance & Corporate Development of Unimin Corporation, a producer of industrial minerals. Mr. Jennings served as Vice President and Treasurer for Cameron International Corporation from 2000 to 2005. Starting in 2005, Mr. Jennings served as Frontier's Executive Vice President and Chief Financial Officer.

Mr. Jennings holds a Bachelor of Arts degree in economics and government from Dartmouth College and a Master of Business Administration degree in finance and accounting from the University of Chicago.