Below is a summary of our committee structure and membership information. To read more about any of the committees, click on committee names in the chart below.
Chairperson Chairperson Committee Member Member Financial Expert Financial Expert
 Audit CommitteeCompensation CommitteeNominating and Corporate Governance Committee
Roger A. Brown 
Roger A. Brown

Mr. Brown has been a director of the Company since 2007. Prior to his retirement in 2007, Mr. Brown was Vice President of Strategic Initiatives for Smith International, Inc. (acquired by Schlumberger in 2010) from 2005 to 2007 and President of Smith Technologies, a division of Smith International, Inc., from 1998 to 2005. Prior to his 30 year career in oilfield services, Mr. Brown was a practicing attorney for eight years. He holds a Bachelor of Science, Economics, History and Political Science ... 
Committee Member Committee Member Chairperson
W. Charles Helton 
W. Charles Helton

Dr. Helton has been a director of the Company since August 1994 and serves as lead independent director. He is a medical doctor and has been the President, Chief Financial Officer and a director of Enterprise Exploration & Production Inc., a private oil and gas exploration and development company, for more than the past five years. Dr. Helton has extensive historical knowledge about the Company.... 
Committee Member Chairperson Committee Member
Michael  J.  Keeffe Financial Expert
Michael  J.  Keeffe

Mr. Keeffe has been a director of the Company since 2012. Prior to his retirement in 2011, Mr. Keeffe was a Senior Audit Partner with Deloitte & Touche LLP. He has 35 years of public accounting experience at Deloitte & Touche directing financial statement audits of public companies, principally in the oil field service and engineering and construction industries, most with significant international operations. He also served as a senior risk management and quality assurance partner in the firm’s... 
Chairperson Committee Member Committee Member
Stephen J. McDaniel Financial Expert
Stephen J. McDaniel

Mr. McDaniel has been a director on our Board since July 2006. He also previously served as a director of Midstates Petroleum Company (NYSE:MPO), where he was previously President and Chief Executive Officer and non-executive Chairman. Since 2013, Mr. McDaniel has served on the Executive Board of the Lone Star Chapter of Big Brothers Big Sisters. His previous experience included approximately ten years of oil and gas investment banking, the majority of which was with Merrill Lynch where he held ... 
Committee Member Committee Member Committee Member
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