Compensation and Leadership Development Committee
Nominating and Corporate Governance Committee
Health, Safety and Environment Committee
Chairman of the Board, President and CEO, Pacific Star Energy LLC
Former Lead Director, Parsley Energy
Former Managing Director, Credit Suisse First Boston
Former CEO, Parsley Energy
Chairman and CEO, ProPetro Holding Corp.
Retired Dean, Mewbourne College of Earth and Energy, University of Oklahoma
Retired Vice President, Shell Oil Company
Retired Vice President and Treasurer, Exxon Mobil Corporation
Chief Executive Officer
Retired Vice Chairman and Chief Financial Officer, Brown-Forman Corporation
Chief Legal Officer, Reata Pharmaceuticals, Inc.