John D. Hart Sr. Vice President, Chief Financial Officer & Chief Strategy Officer
John D. Hart joined the Company as Vice President, Chief Financial Officer and Treasurer in November 2005.
Mr. Hart has 15 years of experience in public accounting, most recently as Senior Audit Manager with Ernst & Young LLP in Oklahoma City. He is a member of the American Institute of Certified Public Accountants, Oklahoma Society of Certified Public Accountants, and the Oklahoma Independent Petroleum Association. Mr. Hart graduated from Oklahoma State University with a Master of Science in accounting in 1991.