FOURTH AMENDMENT AND SUPPLEMENT
                       TO CREDIT AGREEMENT


       This  Fourth Amendment and Supplement to Credit  Agreement
(herein called the "Fourth Amendment") is dated and effective  as
of  December  23, 1996, by and among NEWPARK RESOURCES,  INC.,  a
Delaware corporation (the "Borrower"), SOLOCO L.L.C., a Louisiana
limited  liability company and the successor by merger to SOLOCO,
Inc.  ("SOLOCO L.L.C."), NEWPARK SHIPHOLDING TEXAS, L.P., a Texas
limited partnership ("Newpark Shipholding"), SOLOCO TEXAS,  L.P.,
a  Texas limited partnership ("SOLOCO Texas"), BATSON-MILL, L.P.,
a Texas limited partnership ("Batson"), MALLARD & MALLARD OF LA.,
INC., a Louisiana corporation ("Mallard"), NEWPARK TEXAS, L.L.C.,
a  Louisiana limited liability company ("Newpark Texas"), NEWPARK
HOLDINGS,  INC.,  a  Louisiana corporation ("Holdings"),  NEWPARK
ENVIRONMENTAL  SERVICES,  L.L.C., a Louisiana  limited  liability
company  and  the  successor by merger to  Newpark  Environmental
Services,    Inc.   ("Environmental   L.L.C."),    and    NEWPARK
ENVIRONMENTAL   SERVICES,  L.P.,  a  Texas  limited   partnership
("Environmental L.P."; SOLOCO L.L.C., Newpark Shipholding, SOLOCO
Texas,  Batson,  Mallard, Newpark Texas, Holdings,  Environmental
L.L.C. and Environmental L.P. are herein collectively called  the
"Guarantors"), and HIBERNIA NATIONAL BANK ("Hibernia"), and  BANK
ONE,  LOUISIANA, N.A. ("Bank One Louisiana") (f/k/a PREMIER BANK,
NATIONAL  ASSOCIATION)  (Hibernia  and  Bank  One  Louisiana  are
hereinafter  referred to individually as "Bank" and  collectively
as  the  "Banks"), and BANK ONE, LOUISIANA, N.A.  (f/k/a  PREMIER
BANK,  NATIONAL ASSOCIATION) as agent for the Banks  (hereinafter
in such capacity referred to as the "Agent").

      RECITALS:

       1.    The  Borrower, the Guarantors (except  Environmental
L.L.C.  and Environmental L.P.), Newpark Environmental  Services,
Inc.,  Newpark Environmental Water Services, Inc., SOLOCO,  Inc.,
the  Banks,  Bank One Texas, N.A., and the Agent are  parties  to
that  certain  Credit Agreement dated as of June  29,  1995  (the
"Credit Agreement"), as amended and modified by letter agreements
thereto  dated  October 9, 1995 and January  8,  1996  (the  said
letter   agreements  are  herein  referred  to  as   the   "First
Amendment"),  by  Second  Amendment  and  Supplement  to   Credit
Agreement dated as of March 5, 1996 (the "Second Amendment"), and
by Third Amendment and Supplement to Credit Agreement dated as of
June 27, 1996 (the "Third Amendment").  The Credit Agreement,  as
amended  by  the First Amendment, the Second Amendment,  and  the
Third Amendment, is herein referred to as the Credit Agreement.

       2.    Bank  One  Texas, N.A. is no longer a party  to  the
Credit Agreement.  Pursuant to assignments, Bank One Texas,  N.A.
has  assigned  its  Revolving Note and  Term  Note  to  Bank  One
Louisiana.

       3.    The Borrower and the Guarantors have requested  that
the  Banks (i) eliminate the Line of Credit Borrowing Base,  (ii)
accept  quarterly financial reports instead of monthly  financial
reports, (iii) allow the Borrower and the Guarantors to incur  on
an  annual basis not more than $5,000,000.00 in the aggregate  of
other indebtedness, (iv) approve the Borrower's guarantee of  the
indebtedness of Newpark Shipholding associated with the  shipyard
previously  owned by Newpark Shipholding, said guarantee  not  to
exceed  $10,000,000.00,  and  (v)  allow  the  Borrower  and  the
Guarantors  to  guarantee indebtedness up to the total  aggregate
amount  of  $5,000,000.00 without obtaining  the  Banks'  or  the
Agent's approval.

       4.    The  Banks are willing to accommodate the  aforesaid
requests,  subject to the following conditions: (i) the execution
of  this Fourth Amendment by the Borrower and the Guarantors; and
(ii) delivery by the Borrower and the Guarantors to the Agent  of
certified resolutions authorizing the agreements contemplated  by
this Fourth Amendment.

       5.   All capitalized terms used herein are used as defined
in  the  Credit Agreement, except as otherwise expressly provided
in this Fourth Amendment.

       NOW  THEREFORE,  in  consideration of  the  premises,  the
parties  hereto  do  hereby  amend  and  supplement  the   Credit
Agreement, and agree and obligate themselves as follows:

            A.    ELIMINATION  OF LINE OF CREDIT BORROWING  BASE.
Section  1.03  of  the Credit Agreement are hereby  deleted.   In
addition,  all  other references in the Credit Agreement  to  the
Line of Credit Borrowing Base are hereby deleted.

            B.    FINANCIAL REPORTING REVISION.  Section 7.01  of
the  Credit Agreement is hereby amended to delete the requirement
that  the Borrower furnish monthly consolidated interim financial
statements, and supplemented to include the following:

                The  Borrower shall furnish  to  the
                Agent  and  the Banks within  forty-
                five  (45) days after the  close  of
                each quarter, a consolidated interim
                financial  statement (which  may  or
                may   not   conform   to   generally
                accepted    accounting   principles)
                consisting  of a balance  sheet  and
                income statement).

           C.   NEGATIVE COVENANTS REVISION.

                 1.    GUARANTEES.  Section 9.01  of  the  Credit
Agreement is hereby deleted in its entirety and replaced with the
following:

                9.01.     Guarantees.  Except for the
                (i)       Continuing       Guarantees
                contemplated under Subsection 4.01(b)
                above,   (ii)   guarantees   by   the
                Borrower required for the normal day-
                to-day  operations of the Guarantors,
                (iii)  guarantees by the Borrower  or
                any   of  the  Guarantors  to   third
                parties in an aggregate amount not to
                exceed   $5,000,000.00,   and    (iv)
                guarantee      not     to      exceed
                $10,000,000.00 by the Borrower of the
                indebtedness  of Newpark  Shipholding
                associated    with    the    shipyard
                previously    owned    by     Newpark
                Shipholding,  the  Borrower  and  the
                Guarantors   shall   not   become   a
                guarantor,   surety,   or   otherwise
                liable   for  the  debts   or   other
                obligations  of any person,  firm  or
                corporation.

                 2.    OTHER INDEBTEDNESS.  Section 9.02  of  the
Credit  Agreement is hereby deleted in its entirety and  replaced
with the following:

                9.02.  Other Indebtedness.  Until the
                full and final payment of the Secured
                Notes  the Borrower and each  of  the
                Guarantors shall not create or  incur
                any direct indebtedness in excess  of
                $5,000,000.00 in the aggregate on  an
                annual basis, without first obtaining
                the  prior  written  consent  of  the
                Agent.  The aggregate annual limit of
                $5,000,000.00 was fixed by  the  Bank
                to  allow the Borrower and Guarantors
                to  take  advantage of  below  market
                interest    rates   on   construction
                equipment  purchases or financing  of
                equipment  in connection with  export
                to foreign markets.

           D.   CONFIRMATION OF CROSS COLLATERALIZATION AND CROSS
DEFAULT.   The  parties hereto agree that the Notes  and  Secured
Notes  shall  continue to be secured by the  security  interests,
mortgages,  agreements and guarantees described in, and  executed
pursuant  to,  the Credit Agreement.  Similarly,  the  Notes  and
Secured  Notes  shall continue to be subject  to  the  Events  of
Default specified in the Credit Agreement.

           E.   MISCELLANEOUS PROVISIONS.

                 1.   The Borrower agrees that nothing contained
in this Fourth Amendment shall constitute a novation.

                2.   In consideration of the Bank's execution of
this Fourth Amendment, the Borrower and the Guarantors do hereby
irrevocably waive any and all claims and/or defenses to  payment
on  the  indebtedness owed by any of them to the Banks that  may
exist as of the date of execution of this Fourth Amendment.

                 3.    The  Credit  Agreement,  as  amended  and
supplemented  by this Fourth Amendment, is hereby  ratified  and
confirmed.

                 4.  THE INTERNAL LAWS OF THE STATE OF LOUISIANA
AND  OF THE UNITED STATES OF AMERICA SHALL GOVERN THE RIGHTS AND
DUTIES  OF  THE  PARTIES HERETO AND THE VALIDITY,  CONSTRUCTION,
ENFORCEMENT,  AND INTERPRETATION OF THE CREDIT  AGREEMENT,  THIS
FOURTH  AMENDMENT,  AND ALL LOAN PAPERS EXECUTED  IN  CONNECTION
THEREWITH EXCEPT TO THE EXTENT OTHERWISE SPECIFIED IN THE CREDIT
AGREEMENT, AS AMENDED BY THIS FOURTH AMENDMENT, OR IN ANY OF THE
RELATED LOAN PAPERS.

                 5.    THE  CREDIT  AGREEMENT  AND  THIS  FOURTH
AMENDMENT ARE CREDIT OR LOAN AGREEMENTS AS DESCRIBED IN LA. R.S.
6:  1121,  ET.  SEQ.  THERE ARE NO ORAL AGREEMENTS  BETWEEN  THE
BANKS AND THE BORROWER.

                 6.    THE CREDIT AGREEMENT, AS AMENDED BY  THIS
FOURTH AMENDMENT, SETS FORTH THE ENTIRE AGREEMENT OF THE PARTIES
WITH  RESPECT  TO THE SUBJECT MATTER HEREOF AND  SUPERSEDES  ALL
PRIOR  WRITTEN AND ORAL UNDERSTANDINGS BETWEEN THE BORROWER  AND
THE  GUARANTORS ON ONE HAND, AND THE BANKS AND/OR THE  AGENT  ON
THE  OTHER  HAND, WITH RESPECT TO THE MATTERS HEREIN SET  FORTH.
THE  CREDIT AGREEMENT, AS AMENDED BY THIS FOURTH AMENDMENT,  MAY
NOT  BE  MODIFIED  OR  AMENDED EXCEPT BY A  WRITING  SIGNED  AND
DELIVERED  BY THE BORROWER, THE GUARANTORS, THE BANKS,  AND  THE
AGENT.   THERE  ARE  NO  UNWRITTEN ORAL AGREEMENTS  BETWEEN  THE
PARTIES.

                 7.   IN THE EVENT IT IS NECESSARY FOR THE AGENT
AND/OR  THE  BANK  TO  RESORT  TO  JUDICIAL  ACTION  TO  ENFORCE
ITS/THEIR  RIGHTS  HEREUNDER, THEN THE BORROWER  AND  GUARANTORS
HEREBY AGREE THAT TO THE EXTENT PERMITTED BY APPLICABLE LAW  ANY
SUCH  JUDICIAL ACTION, INCLUDING ANY OPPOSITION TO SUCH  ACTION,
RECONVENTIONAL DEMANDS, AND CROSS CLAIMS, SHALL BE TRIED  BEFORE
A  JUDGE WITHOUT A JURY, ALL PARTIES HERETO HEREBY WAIVING THEIR
RIGHT TO A JURY TRIAL.


                           BORROWER:

                           NEWPARK RESOURCES, INC.


                           BY:______________________________
                              MATTHEW W. HARDEY, VICE
                              PRESIDENT OF FINANCE AND CHIEF
                              FINANCIAL OFFICER


                           GUARANTORS:


                           NEWPARK ENVIRONMENTAL SERVICES,
                           L.L.C.



                           By:______________________________
                              MATTHEW W. HARDEY, TREASURER


                           NEWPARK SHIPHOLDING TEXAS, L.P.
                           By:  Newpark Holdings, Inc., as
                                General Partner



                           By:______________________________
                              MATTHEW W. HARDEY,
                              VICE PRESIDENT


                           SOLOCO TEXAS, L.P.
                           By:  Newpark Holdings, Inc., as
                                General Partner



                           By:______________________________
                              MATTHEW W. HARDEY,
                              VICE PRESIDENT


                           BATSON-MILL, L.P.
                           By:  Newpark Holdings, Inc., as
                                General Partner



                           By:______________________________
                              MATTHEW W. HARDEY,
                              VICE PRESIDENT



                           NEWPARK ENVIRONMENTAL SERVICES,
                           L.P.
                           By:  Newpark Holdings, Inc., as
                                General Partner



                           By:______________________________
                              MATTHEW W. HARDEY,
                              VICE PRESIDENT


                           MALLARD & MALLARD OF LA., INC.



                           By:______________________________
                              MATTHEW W. HARDEY, TREASURER


                           SOLOCO, L.L.C.


                           By:______________________________
                              MATTHEW W. HARDEY, TREASURER


                           NEWPARK TEXAS, L.L.C.



                           By:______________________________
                              MATTHEW W. HARDEY,
                              VICE PRESIDENT


                           NEWPARK HOLDINGS, INC.



                           By:______________________________
                              MATTHEW W. HARDEY,
                              VICE PRESIDENT


                           BANKS:

                           HIBERNIA NATIONAL BANK



                           By:______________________________

                           Title:___________________________


                           BANK ONE, LOUISIANA, N.A.



                           By:______________________________
                               Title: Vice President


                           AGENT:

                           BANK ONE, LOUISIANA, N.A.


                           By:____________________________
                               Title:  Vice-President


32983.327