EXHIBIT 10(b)

                        SECOND AMENDMENT TO THIRD AMENDED
                          AND RESTATED CREDIT AGREEMENT

          This Second  Amendment to Third Amended and Restated Credit  Agreement
(this  "SECOND  AMENDMENT")  is  entered  into  effective  as of the 11th day of
August,  2003 (the  "EFFECTIVE  DATE"),  by and among Denbury  Resources Inc., a
Delaware  corporation  ("BORROWER"),  Bank  One,  NA,  as  Administrative  Agent
("ADMINISTRATIVE AGENT"), and the financial institutions parties hereto as Banks
("BANKS").

                               W I T N E S S E T H

          WHEREAS,  Borrower,  Administrative  Agent,  the other  agents a party
thereto and Banks are parties to that certain Third Amended and Restated  Credit
Agreement  dated as of September 12, 2002 (as amended,  the "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, Banks have made a Revolving
Loan to Borrower and provided certain other credit  accommodations  to Borrower;
and

          WHEREAS,  Borrower has requested that Banks (a) amend certain terms of
the Credit Agreement in certain  respects,  and (b) waive the Specified  Default
(as hereinafter defined) which has occurred and which is continuing; and

          WHEREAS,  subject  to and upon the  terms  and  conditions  set  forth
herein, Banks have agreed to Borrower's requests.

          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, Administrative Agent and each Bank hereby agree as follows:

SECTION 1. AMENDMENTS. In reliance on the representations, warranties, covenants
and  agreements  contained  in  this  Second  Amendment,   and  subject  to  the
satisfaction  of the  conditions  precedent  set forth in Section 3 hereof,  the
Credit  Agreement  shall be amended  effective as of the  Effective  Date in the
manner provided in this Section 1.

     1.1 ADDITIONAL  DEFINITION.  Section 2.1 of the Credit  Agreement  shall be
amended  to  add  thereto  in  alphabetical  order  the  definition  of  "SECOND
AMENDMENT" which shall read in full as follows:

          "SECOND  AMENDMENT"  means  that  certain  Second  Amendment  to Third
     Amended and  Restated  Credit  Agreement  dated as of August 11, 2003 among
     Borrower, Administrative Agent and Banks.

     1.2 AMENDMENT TO DEFINITION.  The definition of "LOAN PAPERS"  contained in
Section 2.1 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 Notes, each Facility Guaranty which may now or hereafter be
     executed,  each  Borrower  Pledge  Agreement  which may now or hereafter be
     executed,  each Subsidiary  Pledge  Agreement which may now or hereafter be
     executed,  the  Existing  Mortgages  (as  amended  by the  Assignments  and
     Amendments  to  Mortgages),  all  Mortgages  now or at any  time  hereafter
     delivered  pursuant to Section  6.1,  the  Assignments  and  Amendments  to
     Mortgages,  and all other certificates,  documents or instruments delivered
     in  connection  with this  Agreement,  as the foregoing may be amended from
     time to time. In addition,  the term "LOAN PAPERS," as used in Article XIII
     hereof, shall also include the Bond Documents.

     1.3 AMENDMENT TO HEDGE TRANSACTIONS  COVENANT.  Section 10.11 of the Credit
Agreement shall be amended to read in full as follows:

     "SECTION 10.11 HEDGE TRANSACTIONS.

          (a) Borrower will not, nor will Borrower permit any other Credit Party
     to,  hedge  (which  hedges  shall not have a tenor of greater than four (4)
     years) more than the following  percentages of its  "forecasted  production
     from Proved  Mineral  Interests"  (as defined  below) during any applicable
     calendar year (a "MEASUREMENT  PERIOD"),  as measured from the current date
     (a "MEASUREMENT date"):



                              Calendar Year Hedged                Percentage Limitation
                              --------------------                ---------------------
                         (relative to measurement date)

                                                                  Oil            Gas
                                                                  ---            ---
                                                                            
                             Current Year                          85%            85%
                             First Subsequent Year                 70%            70%
                             Second Subsequent Year                55%            55%
                             Third Subsequent Year                 40%            40%



     provided,  that,  and  notwithstanding  anything to the contrary  contained
     herewith,  with  respect  to,  but only with  respect  to, the last two (2)
     Fiscal Quarters of the Fiscal Year ending December 31, 2003, the percentage
     limitation  with  respect  to oil  shall  be  deemed  to be 90%;  provided,
     further,  that,  if any  measurement  date  occurs in the final two  Fiscal
     Quarters of any  measurement  period,  for the purpose of  determining  the
     appropriate percentage limitation from the table above (which determination
     shall be made without  giving effect to the first  proviso above [i.e.  the
     current year percentage limitation for oil shall be deemed to be 85%]), the
     limitations  of the current year


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     shall  apply to both the  remaining  portion of that  current  year and the
     entire  subsequent  year, and the limitations of the first  subsequent year
     shall  apply to the  second  subsequent  year,  and so forth (as an example
     only, and for the avoidance of doubt,  for any  measurement  date occurring
     during  the  first  two  Fiscal  Quarters  of  2003,  an Oil and Gas  Hedge
     Transaction for 2004 would have a 70% limitation;  provided,  however,  for
     any measurement date occurring during the last two Fiscal Quarters of 2003,
     an Oil and Gas Hedge  Transaction  for 2004 would have an 85%  limitation);
     provided,  further,  that,  Borrower  may  enter  into  Hedge  Transactions
     consisting  solely of a floor price (i.e.  floor, put or option) so long as
     the  amount  of  Hydrocarbons  which  are the  subject  of any  such  Hedge
     Transaction in existence at any such time do not exceed one-hundred percent
     (100%) of Borrower's  anticipated  production from Proved Mineral Interests
     during the term of any such existing Hedge Transaction; and

          (b)  Borrower  will not  permit its (i)  production  of oil during any
     Fiscal  Quarter  to be less than the  aggregate  amount of oil which is the
     subject of Oil and Gas Hedge  Transactions  during such Fiscal Quarter,  or
     (ii)  production  of gas  during  any  Fiscal  Quarter  to be less than the
     aggregate  amount  of  gas  which  is the  subject  of Oil  and  Gas  Hedge
     Transactions during such Fiscal Quarter.

     As used in Section  10.11(a)  above,  "forecasted  production  from  Proved
Mineral  Interests"  shall mean the forecasted  production for oil and gas, each
taken  individually,  for the applicable  calendar year as reflected in the most
recent Reserve Report delivered to Administrative  Agent pursuant to Section 5.1
hereof, after giving effect to any pro forma adjustments for the consummation of
any "material  acquisitions or dispositions"  between the effective date of such
Reserve Report and the measurement date. "Material acquisitions or dispositions"
means any  acquisition or  disposition  of any asset with a Recognized  Value in
excess of $10,000,000, or any cumulative total of all immaterial acquisitions or
dispositions  which  in the  aggregate  have a  Recognized  Value in  excess  of
$10,000,000."

SECTION 2. SPECIFIED DEFAULT; LIMITED WAIVER. Borrower has failed to comply with
the  provisions set forth in Section 10.11 of the Credit  Agreement  prohibiting
Borrower from hedging more than 85% of its  anticipated  production with respect
to oil for the Fiscal Year ending December 31, 2003 (the  "SPECIFIED  Default"),
which  Specified  Default  constitutes  an Event of  Default  under  the  Credit
Agreement.  In  reliance  on  the  representations,  warranties,  covenants  and
agreements  contained in this Second Amendment,  and subject to the satisfaction
of the  conditions  precedent set forth in Section 3 hereof,  Banks hereby waive
the  Specified  Default;  provided,  that,  such waiver is expressly  limited as
follows:  (i) such waiver is limited  solely to the  non-compliance  by Borrower
with the  provisions  of  Section  10.11 of the  Credit  Agreement  prior to the
Effective Date, and (ii) such waiver is a limited,  one-time waiver, and nothing
contained  herein shall  obligate Banks to grant any additional or future waiver
with respect to, or in connection with, any provision of any Loan Paper.

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SECTION 3.  CONDITIONS  PRECEDENT TO  AMENDMENTS.  The  amendments  contained in
Section 1 hereof  and the  limited  waiver  contained  in  Section 2 hereof  are
subject to the satisfaction of each of the following conditions precedent:

     3.1 NO DEFAULT.  Other than the Specified  Default,  no Default or Event of
Default shall have occurred which
is continuing.

     3.2 OTHER  DOCUMENTS.  Administrative  Agent shall have been  provided with
such other documents,  instruments and agreements, and Borrower shall have taken
such actions, as Administrative  Agent may reasonably require in connection with
this Second Amendment and the transactions contemplated hereby.

SECTION 4.  REPRESENTATIONS  AND  WARRANTIES  OF  BORROWER.  To induce Banks and
Administrative  Agent to enter  into  this  Second  Amendment,  Borrower  hereby
represents and warrants to Banks and Administrative Agent as follows:

     4.1 REAFFIRM EXISTING  REPRESENTATIONS AND WARRANTIES.  Each representation
and warranty of Borrower  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 and the waiver set
forth in Section 2 hereof.

     4.2 DUE AUTHORIZATION; NO CONFLICT. The execution, delivery and performance
by Borrower of this Second  Amendment are within  Borrower's  corporate  powers,
have been duly  authorized by all 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 or the  Subsidiaries  of Borrower or
result in the  creation  or  imposition  of any Lien  upon any of the  assets of
Borrower or the Subsidiaries of Borrower except Permitted Encumbrances.

     4.3 VALIDITY AND  ENFORCEABILITY.  This Second  Amendment  constitutes  the
valid and binding  obligation of Borrower  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.

     4.4 NO DEFAULT OR EVENT OF DEFAULT.  Other than the Specified  Default,  no
Default or Event of Default has occurred which is continuing.

     4.5  ACKNOWLEDGMENT OF SPECIFIED  DEFAULT.  Borrower  acknowledges that the
Specified  Default has  occurred  and is  continuing,  and that  Borrower has no
defense  thereto or any other  defense to (i)  Borrower's  obligation to pay the
Obligations  when due, or (ii) the validity,  enforceability  or binding  effect
against Borrower or any other Credit Party of the Credit Agreement or any of the
other Loan Papers (to the extent a party  thereto)  or any Liens  intended to be
created thereby.

     4.6 INACTION BY  ADMINISTRATIVE  AGENT OR BANKS. No failure or delay on the
part of Administrative  Agent or Banks to exercise any right or remedy under the
Credit  Agreement,  any other Loan Paper or  applicable  law shall  operate as a
waiver thereof,  nor shall any single

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or  partial  exercise  of any right or  remedy  preclude  any  other or  further
exercise  of any  right  or  remedy,  all of  which  are  cumulative  and may be
exercised without notice except to the extent notice is expressly  required (and
has not been  waived)  under the Credit  Agreement,  the other  Loan  Papers and
applicable law.

SECTION 5. MISCELLANEOUS.

     5.1  REAFFIRMATION OF LOAN PAPERS.  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.  The amendments  contemplated
hereby  shall not limit or impair any Liens  securing the  Obligations,  each of
which are hereby  ratified,  affirmed and extended to secure the  Obligations as
they may be increased pursuant hereto.

     5.2 PARTIES IN  INTEREST.  All of the terms and  provisions  of this Second
Amendment  shall bind and inure to the benefit of the  parties  hereto and their
respective successors and assigns.

     5.3 LEGAL EXPENSES.  Borrower hereby agrees to pay on demand all reasonable
fees and expenses of counsel to Administrative  Agent incurred by Administrative
Agent in  connection  with the  preparation,  negotiation  and execution of this
Second Amendment and all related documents.

     5.4  COUNTERPARTS.  This Second  Amendment may be executed in counterparts,
and all parties need not execute the same counterpart;  however,  no party shall
be bound by this  Second  Amendment  until  Borrower  and  Required  Banks  have
executed a counterpart. Facsimiles shall be effective as originals.

     5.5 COMPLETE AGREEMENT. THIS SECOND 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 OR AMONG THE PARTIES.

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

     5.7 EFFECTIVENESS.  This Second Amendment shall be effective  automatically
and without necessity of any further action by Borrower, Administrative Agent or
Banks when  counterparts  hereof have been  executed by  Borrower  and  Required
Banks, and all conditions to the effectiveness hereof set forth herein have been
satisfied.

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


                           [Signature Pages to Follow]

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                                SIGNATURE PAGE TO
                        SECOND AMENDMENT TO THIRD AMENDED
                          AND RESTATED CREDIT AGREEMENT



                                [Signature Page]

                                    BORROWER:
                                    --------

                                    DENBURY RESOURCES INC.,
                                    a Delaware corporation


                                    By:
                                       -----------------------------------------
                                       Phil Rykhoek,
                                       Senior Vice President and
                                       Chief Financial Officer



                                [Signature Page]

                               SIGNATURE PAGE TO
                       SECOND AMENDMENT TO THIRD AMENDED
                         AND RESTATED CREDIT AGREEMENT


                                    ADMINISTRATIVE AGENT:
                                    --------------------

                                    BANK ONE, NA, as Administrative Agent

                                    By:
                                        ----------------------------------------
                                    Name:
                                         ---------------------------------------
                                    Title:
                                          --------------------------------------



                                    BANKS:
                                    -----

                                    BANK ONE, NA

                                    By:
                                        ----------------------------------------
                                    Name:
                                         ---------------------------------------
                                    Title:
                                          --------------------------------------



                                [Signature Page]


                               SIGNATURE PAGE TO
                       SECOND AMENDMENT TO THIRD AMENDED
                         AND RESTATED CREDIT AGREEMENT


                                    FORTIS CAPITAL CORP.


                                    By:
                                        ----------------------------------------
                                    Name:
                                         ---------------------------------------
                                    Title:
                                          --------------------------------------




                                    By:
                                        ----------------------------------------
                                    Name:
                                         ---------------------------------------
                                    Title:
                                          --------------------------------------












                                [Signature Page]


                               SIGNATURE PAGE TO
                       SECOND AMENDMENT TO THIRD AMENDED
                         AND RESTATED CREDIT AGREEMENT



                                    CREDIT LYONNAIS NEW YORK BRANCH

                                    By:
                                        ----------------------------------------
                                    Name:
                                         ---------------------------------------
                                    Title:
                                          --------------------------------------






                                [Signature Page]




                               SIGNATURE PAGE TO
                       SECOND AMENDMENT TO THIRD AMENDED
                         AND RESTATED CREDIT AGREEMENT


                                    COMERICA BANK - TEXAS

                                    By:
                                        ----------------------------------------
                                    Name:
                                         ---------------------------------------
                                    Title:
                                          --------------------------------------









                                [Signature Page]





                               SIGNATURE PAGE TO
                       SECOND AMENDMENT TO THIRD AMENDED
                         AND RESTATED CREDIT AGREEMENT


                                    UNION BANK OF CALIFORNIA, N.A.

                                    By:
                                        ----------------------------------------
                                    Name:
                                         ---------------------------------------
                                    Title:
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                                    By:
                                        ----------------------------------------
                                    Name:
                                         ---------------------------------------
                                    Title:
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                                [Signature Page]


                               SIGNATURE PAGE TO
                       SECOND AMENDMENT TO THIRD AMENDED
                         AND RESTATED CREDIT AGREEMENT


                                    WELLS FARGO BANK TEXAS, N.A.

                                    By:
                                        ----------------------------------------
                                    Name:
                                         ---------------------------------------
                                    Title:
                                          --------------------------------------






                                [Signature Page]

                               SIGNATURE PAGE TO
                       SECOND AMENDMENT TO THIRD AMENDED
                         AND RESTATED CREDIT AGREEMENT



                                    FLEET NATIONAL BANK

                                    By:
                                        ----------------------------------------
                                    Name:
                                         ---------------------------------------
                                    Title:
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                                [Signature Page]

                               SIGNATURE PAGE TO
                       SECOND AMENDMENT TO THIRD AMENDED
                         AND RESTATED CREDIT AGREEMENT



                                    BANK OF SCOTLAND

                                    By:
                                        ----------------------------------------
                                    Name:
                                         ---------------------------------------
                                    Title:
                                          --------------------------------------





                                [Signature Page]




                               SIGNATURE PAGE TO
                       SECOND AMENDMENT TO THIRD AMENDED
                         AND RESTATED CREDIT AGREEMENT


                                   BANK OF AMERICA, N.A.

                                   By:
                                       ----------------------------------------
                                   Name:
                                         ---------------------------------------
                                   Title:
                                          --------------------------------------





                                [Signature Page]



                               SIGNATURE PAGE TO
                       SECOND AMENDMENT TO THIRD AMENDED
                         AND RESTATED CREDIT AGREEMENT



                                  COMPASS BANK


                                    By:
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                                    Name:
                                         ---------------------------------------
                                    Title:
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                                [Signature Page]