CARBO Ceramics Inc. announced that on August 9, 2012, Mr. David G. Gallagher resigned from his position as Vice President of Marketing and Sales of the company. The resignation is effective on August 15, 2012. Mr. Gallagher and the Company have entered into a Separation Agreement, dated August 9, 2012.

For a period of six months, Mr. Gallagher agreed to render to the company certain consulting services as the company may reasonably request.