Management Team Joseph Wm. Foran Chairman of the Board and Chief Executive Officer Full Bio Van H. Singleton II President – Land, Acquisitions and Divestitures and Planning Full Bio Brian J. Willey Executive Vice President and Chief Financial Officer Full Bio G. Gregg Krug Executive Vice President – Marketing and Midstream Strategy Full Bio Christopher P. Calvert Executive Vice President and Chief Operating Officer Full Bio W. Thomas Elsener Executive Vice President of Reservoir Engineering and Senior Asset Manager Full Bio Bryan A. Erman Executive Vice President and General Counsel and Head of M&A Full Bio Glenn W. Stetson Executive Vice President – Production Full Bio Michael D. Frenzel Executive Vice President and Treasurer Full Bio Dr. Edmund L. Frost III Executive Vice President of Geosciences Full Bio Robert T. Macalik Executive Vice President and Chief Accounting Officer Full Bio Jonathan J. Filbert Executive Vice President — Land Full Bio Jordan M. Ellington Executive Vice President and Asset Manager Full Bio M. Cliff Humphreys Executive Vice President — Completions Full Bio Joshua D. Passauer Executive Vice President — Drilling Full Bio
