Board of Directors

Wesley W. von Schack



William P. Cullen

President & CEO

AEGIS Insurance Services, Inc.

Gregory E. Abel

Vice Chairman – Non-Insurance Business Operations | Chairman

Berkshire Hathaway, Inc. | Berkshire Hathaway Energy

Robert W. Best

Director & Former Chairman

Atmos Energy Corporation

Thomas G.S. Busher

Former Chief Operating Officer, Director and Deputy Chairman

Montpelier Re

Christopher M. Crane

President & CEO

Exelon Corporation

Thomas F. Farrell, II

Chairman, President & CEO

Dominion Energy, Inc.

Lisa D. Johnson

CEO & General Manager

Seminole Electric Cooperative, Inc.

Constance H. Lau

President & CEO

Hawaiian Electric Industries, Inc.

Patricia K. Poppe

President & CEO

CMS Energy Corporation

Charles A. Schrock

Chairman & CEO, Retired

Integrys Energy Group, Inc.


Vice Chairman Emeritus

William H. Grigg

Chairman Emeritus

Duke Energy Corporation

Directors Emeriti

Philip C. Ackerman

Chairman, Retired

National Fuel Gas Company

Keith E. Bailey

Chairman, President & CEO, Retired

The Williams Companies, Inc.

Thomas E. Capps

Chairman, Retired

Dominion Resources, Inc. (now Dominion Energy, Inc.)

R. Don Cash

Chairman Emeritus & Director

Questar Corporation

W.R.P. Dalton

Executive Director, Retired

HSBC Holdings plc

John W. Ellis

Chairman, Retired

Puget Sound Energy, Inc.

Stephen E. Frank

Chairman, President & CEO, Retired

Southern California Edison

Walter M. Higgins


South Jersey Industries

Christopher P. Johns

Vice Chairman & President, Retired

Pacific Gas & Electric Company

Don D. Jordan

Chairman & CEO, Retired

Reliant Energy

James J. Jura

CEO & General Manager, Retired

Associated Electric Cooperative, Inc.

Ronald L. Litzinger

President, Retired

Edison Energy Group

George L. Mazanec

Vice Chairman, Retired

PanEnergy (now Enbridge)

Eugene R. McGrath

Chairman & CEO, Retired

Consolidated Edison, Inc.

Corbin A. McNeill, Jr.

Chairman & Co-CEO, Retired

Exelon Corporation

Richard G. Reiten

Chairman & CEO, Retired

NW Natural

William B. Timmerman

Chairman & CEO, Retired

SCANA Corporation