Jeppesen, 55, is in charge of Apache's Gulf Coast Region, which operates in the Gulf of Mexico and coastal areas of Texas and Louisiana. He joined the company in 1993 as Offshore Region Exploration Manager and became Vice President of Exploration, North America, in 1994. He was named Offshore Region Vice President in 1996. Before coming to Apache, he served with Pacific Enterprises Oil Company, Terra Resources and Texaco. He holds bachelor's and master's degrees in geology from Kansas State University.