Carbo Ceramics Inc.

Mr. Kolstad was appointed President and Chief Executive Officer of the Company as of June 1, 2006. He has more than twenty years of experience in the industry and was with Schlumberger, Ltd. (an oilfield service provider), from 1985-2006, serving in numerous domestic and international leadership positions in operations as well as marketing and sales. Mr. Kolstad recently held positions with Schlumberger as Vice President, Oilfield Services – U.S. Onshore, and Vice President, Global Accounts. Mr. Kolstad was elected to the Board of Directors in 2006.

Ernesto Bautista III (age 37) joined the Company as a Vice President on January 1, 2009, and was appointed Chief Financial Officer effective January 20, 2009. From July 2006 until joining the Company, Mr. Bautista served as Vice President and Chief Financial Officer of W-H Energy Services, Inc., a Houston, Texas based diversified oilfield services company ( W-H Energy ). From July 2000 to July 2006, he served as Vice President and Corporate Controller of W-H Energy. From September 1994 to May 2000, Mr. Bautista served in various positions at Arthur Andersen LLP, most recently as a manager in the assurance practice, specializing in emerging, high growth companies. Mr. Bautista is a certified public accountant in the State of Texas.

David G. Gallagher was appointed Vice President, Marketing and Sales on April 16, 2007. He has more than 26 years of experience in the oilfield service industry with Schlumberger, Ltd. Within Schlumberger Oilfield Services business, Mr. Gallagher served as Schlumberger Dowell Director of Product Development for Stimulation and Intervention Technologies, Director of Marketing for Schlumberger land division and most recently served as Director of Marketing for Venezuela, Trinidad and the Caribbean. Mr. Gallagher earned a Bachelor of Engineering degree from the University of New Mexico.

Mark L. Edmunds has been the Vice President, Operations for CARBO Ceramics since April 2002. From 2000 until joining the company, Mr. Edmunds served as Business Unit Manager and Plant Manager for FMC Corporation. Prior to 2000, Mr. Edmunds served Union Carbide Corporation and the Dow Chemical Corporation in a variety of management positions, including Director of Operations, Director of Internal Consulting and Manufacturing Operations Manager.

Mr. Rubin has served as a Senior Vice President of JPMorgan Chase & Co. (a New York-based financial holding company) (“JP Morgan”) and a predecessor firm since 2001.

Chad C. Deaton is Chairman, President and Chief Executive Officer of Baker Hughes Incorporated since he joined the company in October 2004. Before coming to Baker Hughes, he served as President, Director and Chief Executive Officer of Hanover Compressor Company from August 2002 until October 2004. He was with Schlumberger Oilfield Services for most of his career from 1976 until 2001, where he held positions in the United States and internationally. Mr. Deaton's last position with Schlumberger was Executive Vice President of Oilfield Services. He is a director of CARBO Ceramics, Inc. and Ariel Corporation. He is a member of the Society of Petroleum Engineers' Industrial Advisory Council. He is also active in numerous charitable and civic organizations, sitting on the Boards of Houston Achievement Place, Junior Achievement of Southeast Texas, and the Greater Houston Partnership. A native of Wyoming, Chad earned a BS in geology from the University of Wyoming.

Chairman of the Board of Directors of Rowan Companies, Inc. Formerly Managing Director of Barclays Capital, an investment banking firm and successor to Lehman Brothers, from September 2008 to March 2009. In March 2009, Mr. Lentz accepted a position as Managing Director of Lazard Fr?res & Co (an investment banking firm), commencing in June 2009. Managing Director of Lehman Brothers from 1993 to 2002; consultant to Lehman in 2003 and Advisory Director of Lehman from 2004 to September 2008. He also serves on the board of Peabody Energy Corp.

Since November 2007, Mr. Limbacher has served as President and Chief Executive Officer and a Director of Rosetta Resources, Inc. (a Houston-based oil and natural gas company). From April 2006 until November 2007, Mr. Limbacher held the position of President, Exploration and Production — Americas for ConocoPhillips (a Houston-based energy company). Prior to that time, Mr. Limbacher spent over twenty years with Burlington Resources Inc. (a Houston-based oil and natural gas company), where he served as Executive Vice President and Chief Operating Officer from 2002 until acquired by ConocoPhillips in April 2006. He was a Director of Burlington Resources from January 2004 until the sale of the company.