EXHIBIT 32.1



                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of Nabors Industries Ltd. (the
"Company") for the period ended December 31, 2004 as filed with the Securities
and Exchange Commission on the date hereof (the "Report"), I, Eugene M.
Isenberg, Chairman and Chief Executive Officer of the Company, and I, Bruce P.
Koch, Vice President and Chief Financial Officer of the Company, each certify,
pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

         (1) the Report fully complies with the requirements of section 13(a) or
             15(d) of the Securities Exchange Act of 1934; and

         (2) the information contained in the Report fairly presents, in all
             material respects, the financial condition and results of
             operations of the Company.


                                      /s/ Eugene M. Isenberg
                                      ----------------------
                                      Eugene M. Isenberg
                                      Chairman and Chief Executive Officer
                                      March 7, 2005


                                      /s/ Bruce P. Koch
                                      -----------------
                                      Bruce P. Koch
                                      Vice President and Chief Financial Officer
                                      March 7, 2005