THIRD AMENDMENT TO FIRST RESTATED CREDIT AGREEMENT


     This Third  Amendment  to First  Restated  Credit  Agreement  (this  "Third
Amendment")  is  entered  into as of the 10th  day of  August,  1998,  but to be
effective  as  of  June  30,  1998,  by  and  among  Denbury  Management,   Inc.
("Borrower"), Denbury Resources, Inc. ("Parent"), NationsBank of Texas, N.A., as
Administrative Agent ("Agent"), and each of the financial institutions described
on the signature page hereto as Banks ("Banks").

                               W I T N E S S E T H

     WHEREAS,  Borrower, Parent, Agent and the Banks are parties to that certain
First  Restated  Credit  Agreement  dated as of December 29, 1997, as amended by
that certain First  Amendment to First  Restated  Credit  Agreement  dated as of
January 27, 1998 and that  certain  Second  Amendment to First  Restated  Credit
Agreement dated as of February 25, 1998 (as amended, "Credit Agreement") (unless
otherwise  defined  herein,  all terms used  herein  with their  initial  letter
capitalized  shall have the meaning  given such terms in the Credit  Agreement);
and

     WHEREAS, pursuant to the Credit Agreement the Banks have made certain Loans
to Borrower; and

     WHEREAS,  Borrower  has advised  Agent and Banks that  Parent and  Borrower
intend to write down the carrying value of certain assets and take other charges
to earnings  in an  aggregate  amount of  $165,000,000  effective  June 30, 1998
(collectively, the "Write Down"); and

     WHEREAS,  after giving  effect to the Write Down,  Borrower  will not be in
compliance  with  the  tangible  net  worth  covenant  contained  in the  Credit
Agreement; and

     WHEREAS, Borrower has requested that the Banks and Agent agree to amend the
definition of Required  Consolidated  Tangible Net Worth contained in the Credit
Agreement; and

     WHEREAS, the Banks have agreed to such request.

     NOW  THEREFORE,  for  and in  consideration  of the  mutual  covenants  and
agreements  herein  contained  and other good and  valuable  consideration,  the
receipt  and  sufficiency  of  which  are  hereby  acknowledged  and  confessed,
Borrower, Agent and each Bank hereby agree as follows:

     Section  1.Amendments.  In  reliance  on the  representations,  warranties,
covenants and agreements contained in this Third Amendment, the Credit Agreement
shall be amended  effective June 30, 1998 (the  "Effective  Date") in the manner
provided in this Section 1.

     1.1. Additional  Definitions.  Section 1.1 of the Credit Agreement shall be
amended to add the definition of "Third Amendment" as follows:

          "Third Amendment" means that certain Third Amendment to First Restated
     Credit  Agreement dated as of June 30, 1998 among Borrower,  Parent,  Agent
     and Banks.

     1.2.  Amendment  to  Definitions.  The  definitions  of "Loan  Papers"  and
"Required  Consolidated  Tangible  Net  Worth"  in  Section  1.1 of  the  Credit
Agreement shall be amended to read in full as follows:




          "Loan Papers" means this Agreement,  the First  Amendment,  the Second
     Amendment,  the Third Amendment,  the Notes, the Facility  Guarantees,  the
     Parent  Pledge  Agreement,  the  Existing  Mortgages  (as  amended  by  the
     Amendment to  Mortgages),  and all Mortgages  now or at any time  hereafter
     delivered pursuant to Section 5.1, and all other certificates, documents or
     instruments  delivered in connection with this Agreement,  as the foregoing
     may be amended from time to time.

          "Required   Consolidated   Tangible  Net  Worth"   means,   initially,
     $100,000,000;  provided, that, the Required Consolidated Tangible Net Worth
     shall (a) increase (but not decrease) on each  Quarterly Date after July 1,
     1998 by an amount equal to fifty percent (50%) of Parent's Consolidated Net
     Income for the Fiscal  Quarter then ended,  and (b) increase on the date of
     any issuance by Parent of its equity  securities  after July 1, 1998, by an
     amount equal to fifty percent (50%) of the net proceeds  received by Parent
     from the issuance of such securities.

     Section 2. Representations and Warranties of Borrower.  To induce the Banks
and  Agent to enter  into this  Third  Amendment,  Borrower  and  Parent  hereby
represent and warrant to Agent as follows:

     (a) Each  representation  and warranty of Borrower and Parent  contained in
the Credit  Agreement  and the other Loan Papers is true and correct on the date
hereof and will be true and correct  after giving effect to the  amendments  set
forth in Section 1 hereof.

     (b) The execution,  delivery and performance by Borrower and Parent of this
Third Amendment are within the Borrower's and Parent's  corporate  powers,  have
been duly authorized by necessary action, require no action by or in respect of,
or filing with, any governmental  body, agency or official and do not violate or
constitute  a default  under any  provision  of  applicable  law or any Material
Agreement  binding upon Borrower,  the Subsidiaries of Borrower or the Parent or
result in the  creation  or  imposition  of any Lien  upon any of the  assets of
Borrower  or the  Subsidiaries  of  Borrower  or  the  Parent  except  Permitted
Encumbrances.

     (c) This Third Amendment  constitutes the valid and binding  obligations of
Borrower and the Parent enforceable in accordance with its terms,  except as (i)
the enforceability  thereof may be limited by bankruptcy,  insolvency or similar
laws  affecting  creditor's  rights  generally,  and  (ii) the  availability  of
equitable   remedies  may  be  limited  by  equitable   principles   of  general
application.

     (d) Borrower and Parent have no defenses to payment, counterclaim or rights
of set-off with respect to the Obligations existing on the date hereof.

     (e) Parent  and  Borrower  will take the Write Down on their June 30,  1998
financial  statements,  and if they do not do so, this Third  Amendment  will be
rendered null and void and of no further force or effect.

     Section 3. Miscellaneous.

     3.1  Reaffirmation  of Loan Papers;  Extension of Liens. Any and all of the
terms and provisions of the Credit  Agreement and the Loan Papers shall,  except
as amended and modified  hereby,  remain in full force and effect.  Borrower and
Parent hereby extend the Liens securing the  Obligations  until the  Obligations
have been paid in full or are  specifically  released  by Agent and Banks  prior
thereto,  and agree that the amendments and modifications herein contained shall
in no manner affect or impair the Obligations or the Liens securing  payment and
performance thereof.



     3.2  Parties in  Interest.  All of the terms and  provisions  of this Third
Amendment  shall bind and inure to the benefit of the  parties  hereto and their
respective successors and assigns.

     3.3 Legal Expenses.  Borrower hereby agrees to pay on demand all reasonable
fees and expenses of counsel to Agent incurred by Agent,  in connection with the
preparation,  negotiation  and execution of this Third Amendment and all related
documents.

     3.4 Counterparts. This Third Amendment may be executed in counterparts, and
all parties need not execute the same  counterpart;  however,  no party shall be
bound by this Third  Amendment  until all parties have  executed a  counterpart.
Facsimiles shall be effective as originals.

     3.5 Complete Agreement.  THIS THIRD AMENDMENT, THE CREDIT AGREEMENT AND THE
OTHER LOAN PAPERS REPRESENT THE FINAL AGREEMENT  BETWEEN THE PARTIES AND MAY NOT
BE CONTRADICTED BY EVIDENCE OF PRIOR,  CONTEMPORANEOUS OR ORAL AGREEMENTS OF THE
PARTIES. THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

     3.6 Headings.  The headings,  captions and arrangements  used in this Third
Amendment are, unless specified otherwise, for convenience only and shall not be
deemed to limit, amplify or modify the terms of this Third Amendment, nor affect
the meaning thereof.

     IN WITNESS WHEREOF,  the parties hereto have caused this Third Amendment to
be duly executed by their  respective  authorized  officers on the date and year
first above written.

                                                BORROWER:

                                          DENBURY MANAGEMENT, INC.,
                                            a Texas corporation


                                    By:_________________________________
                                        Gareth Roberts
                                        President and Chief Executive Officer


                                    By:_________________________________
                                        Phil Rykhoek
                                        Chief Financial Officer and Secretary









                                               PARENT:
 
                                         DENBURY RESOURCES, INC.,
                                         a corporation incorporated under the
                                         Canada Business Corporations Act


                                    By:_________________________________
                                        Gareth Roberts
                                        President and Chief Executive Officer


                                    By:_________________________________
                                        Phil Rykhoek
                                        Chief Financial Officer and Secretary


                                         ADMINISTRATIVE AGENT:

                                         NATIONSBANK OF TEXAS, N.A.


                                    By:_________________________________
                                        J. Scott Fowler
                                        Vice President


                                              BANKS:
                                         NATIONSBANK OF TEXAS, N.A.


                                    By:_________________________________
                                        J. Scott Fowler
                                        Vice President


                                         BANKBOSTON, N.A.


                                    By:_________________________________
                                    Name:_______________________________
                                    Title:______________________________






                                         WELLS FARGO BANK (TEXAS), N.A.


                                    By:_________________________________
                                    Name:_______________________________
                                    Title:______________________________



                                         CREDIT LYONNAIS NEW YORK BRANCH


                                    By:_________________________________
                                    Name:_______________________________
                                    Title:______________________________


                                         PARIBAS

                                    By:_________________________________
                                    Name:_______________________________
                                    Title:______________________________


                                    By:_________________________________
                                    Name:_______________________________
                                    Title:______________________________


                                         NATEXIS BANQUE BFCE


                                    By:_________________________________
                                    Name:_______________________________
                                    Title:______________________________


                                        CHRISTIANIA BANK OG KREDITKASSE ASA


                                    By:_________________________________
                                    Name:_______________________________
                                    Title:______________________________


                                         BANK ONE, TEXAS, N.A.


                                    By:_________________________________
                                    Name:_______________________________
                                    Title:______________________________



                                         CHASE BANK OF TEXAS,
                                         National Association


                                    By:_________________________________
                                    Name:_______________________________
                                    Title:______________________________