EXHIBIT 32


                             NATIONAL-OILWELL, INC.

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

In connection with the Quarterly Report of National-Oilwell, Inc. (the
"Company") on Form 10-Q for the period ending September 30, 2003 as filed with
the Securities and Exchange Commission on the date hereof (the "Report"), the
undersigned, Merrill A. Miller, Jr., Chairman, President and Chief Executive
Officer of the Company, and Steven W. Krablin, the Chief Financial Officer of
the Company, each of the undersigned hereby certifies, pursuant to 18 U.S.C.
Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of
2002, that:

(i) The Report fully  complies  with the  requirements  of Section  13(a) of the
Securities Exchange Act of 1934; and

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

The certification is given to the knowledge of the undersigned.




By:  /s/ Merrill A. Miller, Jr.
     ----------------------------
Name:  Merrill A. Miller, Jr.
Title: Chairman, President and
       Chief Executive Officer
Date:  November 14, 2003

By:  /s/ Steven W. Krablin
     ----------------------------
Name:  Steven W. Krablin
Title: Chief Financial Officer
Date:  November 14, 2003




A signed original of this written statement required by Section 906, or other
document authenticating, acknowledging, or otherwise adopting the signature that
appears in typed form within the electronic version of this written statement
required by Section 906, has been provided to National-Oilwell, Inc. and will be
retained by National-Oilwell, Inc. and furnished to the Securities and Exchange
Commission or its staff upon request.