Mark B. Jennings joined the firm in January 2005, having practiced previously in both Enid, Oklahoma and Tulsa. Mark's practice focuses on civil and commercial litigation, as well as environmental law. Mark earned an undergraduate degree in electrical engineering from Oklahoma State University, and subsequently his J.D from the University of Arkansas in Fayetteville. Admitted to practice in Oklahoma courts in 1983, Mark also is admitted to practice before the Tenth Circuit Court of Appeals, the United States District Courts for the Northern, Eastern and Western Districts of Oklahoma, as well as the Eastern and Western Districts of Arkansas. He is a member in the American, Oklahoma, and Tulsa County Bar Associations, and the Oklahoma Trial Lawyers Association.