<DOCUMENT>
<TYPE>EX-4.5
<SEQUENCE>3
<FILENAME>carbex4-5.txt
<TEXT>
                                                                     Exhibit 4.5
                                                                     -----------


         CARBO CERAMICS INC. AMENDMENT NO. 1 TO THE CARBO CERAMICS INC.
                    1996 STOCK OPTION PLAN FOR KEY EMPLOYEES


         Subject to, and effective upon, receipt of the requisite approval by
the shareholders of Carbo Ceramics Inc. (the "Company"), the Board of Directors
of the Company hereby amends the first sentence of Section 3 of the Carbo
Ceramics Inc. 1996 Stock Option Plan for Key Employees by replacing the number
"1,000,000" therein with the number "1,250,000" (such amendment, "Amendment No.
1").


</TEXT>
</DOCUMENT>