Peter A. Ragauss

PETER A. RAGAUSS, 62, joined the Company’s Board of Directors in December 2014. He is a member of the Audit Committee. In November 2014, Mr. Ragauss retired from Baker Hughes after serving eight years as senior vice president and chief financial officer. From 2003 to 2006, prior to joining Baker Hughes, Mr. Ragauss was controller,

Daniel W. Rabun

DANIEL W. RABUN, 65, joined the Company’s Board of Directors in May 2015. He is a member of the Audit Committee and the Corporate Governance and Nominating Committee. From 2007 to his retirement in May 2015, Mr. Rabun served as the chairman of Ensco plc, an offshore drilling services company, based in London. He retired

Amy H. Nelson

AMY H. NELSON, 51, joined the Company’s Board of Directors in February 2014. She is a member of the Audit Committee and the Corporate Governance and Nominating Committee. Ms. Nelson is the president of Greenridge Advisors, LLC, which she founded in 2007 as an energy services and equipment consulting firm focused on the development, execution,

William C. Montgomery

WILLIAM C. MONTGOMERY, 58, joined the Company’s Board of Directors in September 2011. He chairs the Management Development and Compensation Committee. From October 2002 to April 2011, Mr. Montgomery was a partner in the investment banking division of Goldman, Sachs & Co., where he headed the firm’s Americas Natural Resources Group as well as its

Rene R. Joyce

RENE R. JOYCE, 72, joined the Company’s Board of Directors in May 2017. He is a member of the Management Development and Compensation Committee. He currently serves as a director of midstream company Targa Resources Corporation (Targa Resources). Mr. Joyce previously served as executive chairman of the board of Targa Resources between 2012 and 2014

Chansoo Joung

CHANSOO JOUNG, 59, joined the Company’s Board of Directors in February 2011. He chairs the Audit Committee and is a member of the Corporate Governance and Nominating Committee. From 2005 to 2015, Mr. Joung was a partner and then senior advisor at Warburg Pincus LLC. He was responsible for making and monitoring investments in all

Juliet S. Ellis

JULIET S. ELLIS, 61, joined the Company’s Board of Directors in May 2019. She is a member of the Corporate Governance and Nominating Committee and the Management Development and Compensation Committee. Ms. Ellis served as a managing director and senior portfolio manager for Invesco Ltd. (Invesco) and as the chief investment officer for Invesco’s US

Annell R. Bay

ANNELL R. BAY, 64, joined the Company’s Board of Directors in May 2014. She chairs the Corporate Governance and Nominating Committee and is a member of the Management Development and Compensation Committee. From July 2011 to April 2014, Ms. Bay served as vice president, Global Exploration, of Marathon Oil Corporation, having previously held the position

John E. Lowe

Non-Executive Chairman of the Board

JOHN E. LOWE, 61, joined the Company’s Board of Directors in July 2013 and became non-executive chairman as of May 2, 2015. Mr. Lowe enjoyed a 30-year career with ConocoPhillips and Phillips Petroleum Company, serving in positions of increasing responsibility during that time. Most recently, he served as assistant to the chief executive officer of