Executive Officers

Board of Directors

Stephen W. Bergstrom
Chairman
Former President, Chief Executive Officer and General Partner, American Midstream
Director since 2016

Committees

Compensation and Management Development Committee

Governance and Sustainability Committee

Nancy K. Buese
Independent Director
Executive Vice President and Chief Financial Officer, Newmont Mining Corporation
Director since 2018

Committees

Compensation and Management Development Committee, Environmental, Health and Safety Committee

Michael A. Creel
Independent Director
Former Chief Executive Officer, Enterprise Products Partners LP
Director since 2016

Committees

Environmental, Health and Safety Committee, Audit Committee

Stacey H. Doré
Independent Director
Former Chief Executive Officer, Sharyland Utilities, LLC
Director since 2021

Committees

Governance and Sustainability Committee, Audit Committee

Richard E. Muncrief 
Independent Director
Director, President and Chief Executive Officer, Devon Energy Corporation
Director since 2022

Committees

Compensation and Management Development Committee, Environmental, Health and Safety Committee

Peter A. Ragauss
Independent Director
Former Senior Vice President and Chief Financial Officer, Baker Hughes Incorporated
Director since 2016

Committees

Audit Committee, Governance and Sustainability Committee

Rose M. Robeson
INDEPENDENT DIRECTOR
FORMER CHIEF FINANCIAL OFFICER, DCP MIDSTREAM
Director since 2020

Committees

Compensation and Management Development Committee, Environmental, Health and Safety Committee

Scott D. Sheffield
Independent Director
Chairman and Chief Executive Officer, Pioneer Natural Resources Company
Director since 2016

Committees

Compensation and Management Development Committee, Environmental, Health and Safety Committee

Murray D. Smith
Independent Director
President, Murray Smith and Associates, former Minister of Energy for Alberta, Canada
Director since 2012

Committees

Compensation and Management Development Committee, Environmental, Health and Safety Committee

William H. Spence
Independent Director
Chairman of the Board, PPL Corporation
Director since 2016

Committees

Compensation and Management Development Committee, Governance and Sustainability Committee

Jesse J. Tyson
Independent Director
Retired President and Chief Executive Officer, ExxonMobil Inter-Americas
Director since 2022

Committees

Audit Committee, Governance and Sustainability Committee