W. Kregg Olson

Vice President — Corporate Reservoir Engineering

W. KREGG OLSON, 55, was appointed senior vice president — corporate reservoir engineering in September 2007, having been vice president since January 2004. Prior to that, Mr. Olson held positions of increasing responsibility within corporate reservoir engineering since joining the Company in 1992.

Previously, he was associated with Grace Petroleum Corporation.

Mr Olson received a bachelor’s degree in petroleum engineering from Texas A&M University. He is a member of the Society of Petroleum Engineers, the Society of Professional Well Log Analysts and is a registered professional engineer in the state of Oklahoma.