Gordon T. Hall, Chairman
Director since 2002
Member of the Audit and Compensation Committees
Retired Managing Director, Senior Oil Field Services Analyst and Co-Head of the Global Energy Group of Credit Suisse (a brokerage services and investment banking firm)
D. Bradley Childers
Director since 2013
President and Chief Executive Officer, Archrock, Inc.
Current President and Chief Executive Officer of Archrock Inc.
Anne-Marie N. Ainsworth
Director since 2015
Chair of the Governance and Sustainability Committee and member of the Audit Committee
Former President and Chief Executive Officer of the general partner of Oiltanking Partners, L.P. (a provider of terminal, storage and transportation services to the crude oil, refined petroleum and liquefied petroleum gas industries)
Frances Powell Hawes
Director since 2015
Chair of the Audit Committee and member of the Governance and Sustainability Committee
Independent Financial Consultant and former Chief Financial Officer of New Process Steel, L.P. (a privately held steel distribution company)
J.W.G "Will" Honeybourne
Director since 2006
Member of the Compensation and Governance and Sustainability Committees
Managing Director of First Reserve Corporation (a private equity firm)
James H. Lytal
Director since 2015
Chair of the Compensation Committee and member of the Governance and Sustainability Committee
Senior Advisor for Global Infrastructure Partners (a leading global, independent infrastructure investor)
Leonard W. Mallett
Director Since 2021
Member of the Compensation Committee
Retired Executive Vice President and Chief Operations Officer of Summit Midstream Partners, LP
Jason C. Rebrook
Director since 2020
Serves in a dual capacity as Chief Executive Officer of Harvest Midstream and as Chief Executive Officer of JDH Capital Company
Edmund P. Segner, III
Director since 2018
Member of the Audit and Governance and Sustainability Committees
Professor in the Practice of Engineering Management in the Department of Civil and Environmental Engineering at Rice University (Houston) and retired President of EOG Resources, Inc. (an oil and gas exploration and production company)