Exhibit 24




                                POWER OF ATTORNEY

I hereby confirm that I have authorized and designated Paul G. Vitek and R. Sean
Elliott to execute and file on my behalf all SEC Section 16 forms (including any
amendments thereto) that I may be required to file with the United States
Securities and Exchange Commission as a result of my position with, or my
ownership of or transactions in securities of, CARBO Ceramics Inc. (the
"Company"). The authority of such individuals under this Statement shall
continue for as long as I am required to file such forms, unless earlier
terminated by my delivery of a written revocation of this authorization to the
Company. I hereby acknowledge that such individuals are not assuming, nor is the
Company assuming, any of my responsibilities to comply with Section 16 of the
Securities Exchange Act of 1934.

                                                    /s/ David G. Gallagher
                                                    ---------------------------
                                                    David G. Gallagher

Dated: January 10, 2008