Leadership

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, Nominating and Governance 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

Stephen I. Chazen
Independent Director
President, Chief Executive Officer and Chairman, Magnolia Oil and Gas Corporation
Director since 2016

Committees

Nominating and Governance Committee, Audit Committee

Charles “Casey” Cogut
Independent Director
Retired Partner, Simpson Thacher & Bartlett LLP
Director since 2016

Committees

Audit Committee, Nominating and Governance Committee

Kathleen B. Cooper
Independent Director
President, Cooper Strategies International LLC
Director since 2006

Committees

Compensation and Management Development Committee, Nominating and Governance 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

Vicki L. Fuller
Independent Director
Former Chief Investment Officer, New York State Common Retirement Fund
Director since 2018

Committees

Audit Committee, Nominating and Governance Committee

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

Committees

Audit Committee, Nominating and Governance 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, President and Chief Executive Officer, PPL Corporation
Director since 2016

Committees

Audit Committee, Environmental, Health and Safety Committee

Executive Officers