As filed with the  Securities  and  Exchange  Commission  on  November  14, 2005
                                                     Registration No. 333-118140
================================================================================

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                        POST-EFFECTIVE AMENDMENT NO. 1 TO

                                    FORM S-8

             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                                -----------------

                             NEWPARK RESOURCES, INC.
             (Exact name of registrant as specified in its charter)

           DELAWARE                                               72-1123385
(State or other jurisdiction of                               (I.R.S. Employer
incorporation or organization)                               Identification No.)

3850 NORTH CAUSEWAY BOULEVARD, SUITE 1770
       METAIRIE, LOUISIANA                                         70002
(Address of principal executive offices)                         (Zip Code)

                             NEWPARK RESOURCES, INC.
                 2004 NON-EMPLOYEE DIRECTORS' STOCK OPTION PLAN
                            (Full title of the plan)

                                  JAMES D. COLE
                             CHIEF EXECUTIVE OFFICER
                             NEWPARK RESOURCES, INC.
                    3850 NORTH CAUSEWAY BOULEVARD, SUITE 1770
                            METAIRIE, LOUISIANA 70002
                     (Name and address of agent for service)

                                 (504) 838-8222
          (Telephone number, including area code, of agent for service)

                                    COPY TO:
                             HOWARD Z. BERMAN, ESQ.
                           ERVIN, COHEN & JESSUP, LLP
                       9401 WILSHIRE BOULEVARD, 9TH FLOOR
                             BEVERLY HILLS, CA 90212
                                 (310) 273-6333


================================================================================

                                EXPLANATORY NOTE

     The  sole  purpose  of this  Post-Effective  Amendment  No.  1 is to file a
corrected  Consent of Independent  Registered  Public  Accounting Firm, which is
attached hereto as Exhibit 23.1. The attached  Consent  corrects a typographical
error in the original  Consent dated March 15, 2005,  which was filed as Exhibit
23.1 to our Annual Report on Form 10-K for the year ended December 31, 2004. The
original Consent erroneously identified Registration Statement on Form S-8 (File
No. 333-118140) as having file number 333-228240.

                                     PART II
               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

ITEM 8.  EXHIBITS.

         4.1    Newpark Resources, Inc. 2004 Non-Employee Directors' 
                Stock Option Plan *
         5.1    Opinion of Ervin, Cohen & Jessup LLP *
         23.1   Consent of Independent Registered Public Accounting Firm **
         23.2   Consent of Ervin, Cohen & Jessup LLP (included in Exhibit 5.1)*
         24.1   Powers of Attorney *
         -----------------
         *      Previously filed.
         **     Filed herewith.



                                   SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, as amended, the
registrant certifies that it has reasonable grounds to believe that it meets all
of  the   requirements  for  filing  on  Form  S-8  and  has  duly  caused  this
post-effective  amendment  to the  registration  statement  to be  signed on its
behalf by the undersigned,  thereunto duly authorized,  in the City of Metairie,
State of Louisiana, on November 11, 2005.

                                        NEWPARK RESOURCES, INC.


                                         By: /s/ James D. Cole
                                           -------------------------------------
                                             James D. Cole,
                                             Chief Executive Officer

     Pursuant to the  requirements  of the  Securities  Act of 1933, as amended,
this post-effective  amendment to the registration  statement has been signed by
the following persons in the capacities and on the dates indicated.



            Signature                               Title                                Date
            ---------                               -----                                ----
                                                                       
/s/ James D. Cole
----------------------------------
James D. Cole                          Chief Executive Officer and           November 11, 2005
                                       Director
                                       (Principal Executive Officer)

*
----------------------------------
Wm. Thomas Ballantine                  President, Chief Operating            November 11, 2005
                                       Officer and Director

/s/ Matthew W. Hardey
----------------------------------
Matthew W. Hardey                      Vice President of Finance and         November 11, 2005
                                       Chief Financial Officer
                                       (Principal Financial and
                                        Accounting Officer)

*
----------------------------------
Jerry W. Box                           Director                              November 11, 2005

*
----------------------------------
David P. Hunt                          Chairman of the Board                 November 11, 2005

*
----------------------------------
Alan J. Kaufman                        Director                              November 11, 2005

*
----------------------------------
James H. Stone                         Director                              November 11, 2005


                                      S-1




                                                                       
*
----------------------------------
Roger C. Stull                         Director                              November 11, 2005

*
----------------------------------
F. Walker Tucei, Jr.                   Director                              November 11, 2005


By:   /s/ Matthew W. Hardey
     ----------------------
      Matthew W. Hardey
      Attorney-in-Fact


                                      S-2