EXHIBIT 32.1


CERTIFICATION OF PERIODIC FINANCIAL REPORTS PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


To the best of their knowledge the undersigned hereby certify that the Quarterly Report on Form 10-Q of RPC, Inc. for the period ended March 31, 2006, fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934 (15 U.S.C. Sec. 78m) and that the information contained in the Quarterly Report fairly presents, in all material respects, the financial condition and results of operations of RPC, Inc.
 
     
   
Date:  May 8, 2006 By:   /s/ Richard A. Hubbell                                                   
  Richard A. Hubbell
 
President and Chief Executive Officer
(Principal Executive Officer
 
     
 
 		  
 		  
 
Date:  May 8, 2006 By:   /s/ Ben M. Palmer                                                             
  Ben M. Palmer
 
Vice President, Chief Financial Officer and Treasurer
(Principal Financial and Accounting Officer)