| Richard J. Heckmann
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| Executive Chairman of the Board
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Age: 69 Bio & Compensation - Reuters
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| Mark D. Johnsrud
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| Vice Chairman of the Board, Chief Executive Officer
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Age: 54 Bio & Compensation - Reuters
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| Robert B. Simonds Jr.
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| Independent Vice Chairman of the Board
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Age: 50 Bio & Compensation - Reuters
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| Jay Parkinson
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| Chief Financial Officer, Executive Vice President
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Age: 37 Bio & Compensation - Reuters
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| Damian C. Georgino
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| Executive Vice President - Corporate Development, Chief Legal Officer and Corporate Secretary
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Age: 52 Bio & Compensation - Reuters
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| W. Christopher Chisholm
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| Executive Vice President and Chief Financial Officer of the Fluids Management Division
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Age: 53 Bio & Compensation - Reuters
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| Charles R. Gordon
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| Executive Vice President and President of the Fluids Management Division
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Age: 55 Bio & Compensation - Reuters
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| Edward A. Barkett
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| Independent Director
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Age: 46 Bio & Compensation - Reuters
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| Lou L. Holtz
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| Independent Director
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Age: 76 Bio & Compensation - Reuters
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| Alfred E. Osborne Jr., Ph.D.
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| Independent Director
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Age: 68 Bio & Compensation - Reuters
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