Document:

EXHIBIT 10.1(b)(v)
                               ------------------

                                 AMENDMENT NO. 5
                               TO CREDIT AGREEMENT

         AMENDMENT NO. 5 (this "Amendment No. 5"), dated as of July 31, 2000,
under the Credit Agreement dated as of June 30, 1997, by and among OGDEN
CORPORATION, a Delaware corporation (the "Company"), the Signatory Lenders party
thereto (the "Lenders") and THE BANK OF NEW YORK, as Agent (the "Agent"), as
amended by Amendment No. 1 to Credit Agreement, dated as of August 18, 1999,
Amendment No. 2 to Credit Agreement, dated as of December 20, 1999, Amendment
No. 3 to Credit Agreement, dated as of March 31, 2000, and Amendment No. 4 to
Credit Agreement, dated as of June 30, 2000 (the "Credit Agreement").

                                    RECITALS
                                    --------

         I. Capitalized terms used herein which are not herein defined shall
have the respective meanings ascribed thereto in the Credit Agreement.

         II. The Company has requested that the Agent and the Lenders amend the
Credit Agreement in certain respects and the Agent and the Lenders have advised
the Company that they are willing to agree to the Company's request, subject to
the terms and conditions set forth herein.

         Accordingly, in consideration of the covenants, conditions and
agreements hereinafter set forth, and for other good and valuable consideration,
the receipt and adequacy of which are hereby acknowledged, the parties hereto
agree as follows:

         1. AMENDMENTS TO CREDIT AGREEMENT

         1.1 Additional Definitions. Section 1.1 of the Credit Agreement is
hereby amended by adding the following defined terms in the appropriate
alphabetical order:

          "Amendment No. 5": Amendment No. 5 to Credit Agreement, dated as of
          July 31, 2000, among the Company, the Lenders party thereto and the
          Agent.

          "Amendment No. 5 Effective Date": the date on which the conditions set
          forth in Section 2.1 of Amendment No. 5 are satisfied.

          "Goldman Sachs Fund": the Goldman Sachs Financial Square Funds Prime
          Obligation Fund Institutional Shares.

         1.2 Section 1.1 of the Credit Agreement is amended by deleting in its
entirety the text of the defined term "Operating Income" and substituting
therefor the following:

          "Operating Income" net income before income taxes and minority
     interests of the Company and its Subsidiaries from continuing operations
     and for the purpose and only for the purpose of testing and determining
     compliance with Section 8.9 of this Agreement (a) including income from the
     1999 Discontinued Operations, (b) excluding actual gains and losses
     resulting from the disposition of Property made pursuant to Section
     8.6(iv), (c) excluding amounts not to exceed (1) for each 1999 Write-Off
     Event, the corresponding amount, pre-tax, set forth in the second column of
     Schedule 2 to Amendment No. 2 to the Credit Agreement, (2) $100,000,000 in
     the aggregate for all 1999 Write-Offs Events, (d) excluding write-offs
     associated with the Richard Ablon litigation not to exceed $23,000,000 in
     the aggregate, (e) excluding gains or losses arising from the 1999
     Discontinued Operations and (f) excluding, without duplication, the
     write-offs and losses listed under "Corp. and Other" in Schedule D to
     Amendment No. 5.

         1.3 Section 1.1 of the Credit Agreement is amended by deleting in its
entirety the text of the defined term "Shareholders' Equity" and substituting
therefor the following:

          "Shareholders' Equity" all amounts which would, in conformity with
     GAAP, be included under shareholders' equity on a Consolidated balance
     sheet, plus, for the purpose and only for the purpose of determining and
     testing compliance with Section 8.5 of this Agreement, (a) actual losses
     when incurred (according to GAAP) in respect of the 1999 Write-Offs, not to
     exceed (i) for each 1999 Write-Off Event, the corresponding amount,
     after-tax, set forth in the third column of Schedule 2 to Amendment No. 2
     to Credit Agreement and (ii) $70,000,000 after-tax, in the aggregate for
     all 1999 Write-Offs, (b) actual write-offs or losses when incurred
     (according to GAAP) in respect of the 1999 Discontinued Operations, and (c)
     the items listed under "Corp. and Other" in Schedule D to Amendment No. 5.

         1.4 Liquidity Subfacility Termination Date. The definition of
"Liquidity Subfacility Termination Date" set forth in Section 1.1 of the Credit
Agreement is hereby amended by deleting the reference therein to "July 31, 2000"
and substituting "September 30, 2000" therefor.

         1.5 Proceeds Disbursement Request. The definition of "Proceeds
Disbursement Request" set forth in Section 1.1 of the Credit Agreement is hereby
deleted in its entirety and the following substituted therefor:

          "Proceeds Disbursement Request": a notice of the Company in the form
     of Exhibit A to Amendment No. 4, specifying (i) the aggregate amount of Net
     Cash Proceeds requested to be disbursed from the Disbursement Account, (ii)
     the requested disbursement date, (iii) the intended use of such Net Cash
     Proceeds (including, without limitation, if such Net Cash Proceeds are
     intended to be used in connection with the Balaji Project or the Haripur
     Project) and (iv) the amount of the Balaji Reserve and the Haripur Reserve,
     in each case as of the date of such Proceeds Disbursement Request, and
     certifying, representing and warranting that (w) no Default or Event of
     Default has occurred and is continuing, (x) such Net Cash Proceeds shall be
     used in accordance with Paragraph 2.25(c) (or if such Net Cash Proceeds are
     to be used in connection with (1) the Balaji Project, that such Net Cash
     Proceeds shall be used to fund obligations of the Company or any of its
     Subsidiaries under the instruments, documents and agreements governing the
     Balaji Investment as in effect on the Amendment No. 4 Effective Date or to
     pay or secure reimbursement obligations of the Company in respect of the
     Balaji L/C or (2) the Haripur Project, that such Net Cash Proceeds shall be
     used to fund obligations of the Company or any of its Subsidiaries under
     the Merita Facility Agreement or the Haripur L/C), and (y) if such Net Cash
     Proceeds are to be used in connection with (1) the Balaji Project, after
     giving effect to the application of the requested disbursement the
     aggregate amount of Investments, Acquisitions and Capital Expenditures made
     or committed to be made by the Company and its Subsidiaries in the Balaji
     Project does not exceed $37,500,000 or (2) the Haripur Project, after
     giving effect to the application of the requested disbursement the
     aggregate amount of funds disbursed from the Disbursement Account applied
     in connection with the Haripur Project does not exceed $20,346,639.50.

         1.6 Projections. The definition of "Projections" set forth in Section
1.1 of the Credit Agreement is hereby deleted in its entirety and the following
substituted therefor:

          "Projections": the projections of the Company dated July 18, 2000,
     delivered to the Agent and the Lenders and annexed to Amendment No. 5 as
     Schedule A.

         1.7 Release of Net Cash Proceeds from Disbursement Account. Section
2.25(c) of the Credit Agreement is hereby amended by adding the following at the
end thereof:

          All Net Cash Proceeds released from the Disbursement Account shall be
          used by the Company in accordance with and for the purposes and in the
          amounts set forth in the Projections for each division of the Company
          (i.e., Corporate, Services, Aviation, Entertainment or Energy) for the
          two month period from August 1, 2000 through September 30, 2000 and
          for each month thereafter set forth in the Projections; provided,
          however, (i) except as otherwise set forth in this proviso or
          permitted by paragraph 8.14 of this Agreement, all Net Cash Proceeds
          released from the Disbursement Account used to make Investments and
          Acquisitions shall be used for the purposes and in the amounts set
          forth in each line item for the two month period from August 1, 2000
          through September 30, 2000 and for each month thereafter set forth in
          the Projections, (ii) if such Net Cash Proceeds are to be used in
          connection with the Balaji Project, such Net Cash Proceeds shall be
          used to fund obligations of the Company or any of its Subsidiaries
          under the instruments, documents and agreements governing the Balaji
          Investment as in effect on the Amendment No. 4 Effective Date or to
          pay or secure reimbursement obligations of the Company in respect of
          the Balaji L/C, and (iii) if such Net Cash Proceeds are to be used in
          connection with the Haripur Project, such Net Cash Proceeds shall be
          used to fund obligations of the Company or any of its Subsidiaries
          under the Merita Facility Agreement or the Haripur L/C.

         1.8 Balaji Reserve. Section 2.25(g) of the Credit Agreement is hereby
amended by deleting the first reference to "$30,000,000" in the first sentence
thereof and substituting "$31,000,000" therefor.

         1.9 Disbursement Account and Reserve Account. Section 2.25 of the
Credit Agreement is hereby amended by adding a new paragraph 2.25(i) at the end
thereof to read in its entirety as follows:

          "(i) Investment of Disbursement and Reserve Account. At the request of
     the Company, any or all amounts from time to time deposited in or credited
     to the Disbursement Account and any or all amounts in excess of
     $102,000,000 from time to time deposited in or credited to the Reserve
     Account may be invested by the Agent in the Goldman Sachs Fund, provided
     that such investment shall remain subject to the provisions of this
     Agreement. Except as specifically set forth in paragraph 2.25(f), the Agent
     shall not be liable for any action taken or omitted or for any loss or
     injury resulting from investment in the Goldman Sachs Fund (or any other
     investment of any amounts deposited in or credited to the Disbursement
     Account or the Reserve Account), including, without limitation, any
     liability for any losses or diminution in the value of any amounts invested
     in, or for any amounts earned on the amounts invested in, the Goldman Sachs
     Fund. The funds retained in the Disbursement Account and in the Reserve
     Account will earn interest at the rates payable under the BNY Cash Reserve
     Account pursuant to the Money Fund Direct Agreement between the Agent and
     the Company. The funds invested in the Goldman Sachs Fund will earn
     interest at the rates payable by the Goldman Sachs Fund (Institutional
     Share Class).

         1.10 Liquidity Loans. Section 2.26 of the Credit Agreement is hereby
amended by adding a new paragraph 2.26(d) at the end thereof to read in its
entirety as follows:

          (d) The Company and each Lender agree that, notwithstanding any other
     provision of this Agreement, during the period from the Amendment No. 5
     Effective Date to and including the date on which all of the Lenders, each
     in its sole discretion, agree to reinstate the ability of the Company to
     borrow Liquidity Loans under the Liquidity Subfacility, the Company shall
     not be entitled to request, and the Lenders shall not be obligated to make,
     any Liquidity Loans.

         1.11 Shareholders' Equity. Section 7.11 of the Credit Agreement is
hereby deleted in its entirety and the following substituted therefor:

               7.11 Shareholder's Equity.

               Maintain at all times for each period set forth below its
          Shareholders' Equity in an amount not less than the amount set forth
          opposite such period:

                Period                           Minimum Shareholders' Equity
                ------                           ----------------------------

    Effective Date to and including                          $440,000,000
    December 31, 1999

    January 1, 2000 to and including                         $400,000,000
    March 31, 2000

    April 1, 2000 to and including                           $375,000,000
    June 30, 2000

    July 1, 2000 to and including                            $375,000,000
    October 2, 2000

    October 3, 2000 and thereafter                           $440,000,000

         1.12 Certain Amendments. Section 7.12 of the Credit Agreement is hereby
(i) renumbered Section 7.12(a) and (ii) amended by adding a new paragraph
7.12(b) at the end thereof to read in its entirety as follows:

               (b) Use its best efforts to replace the $95,000,000 Deutsche Bank
          Palladium Letter of Credit and to extend the maturity date or expiry
          date of any other Indebtedness or other Credit Facility Indebtedness
          which matures or expires, as the case may be, prior to September 30,
          2000 (including, without limitation, the Indebtedness and Credit
          Facility Indebtedness set forth on Schedule C to Amendment No. 5) to a
          date that is not earlier than September 30, 2000.

         1.13 Leverage Ratio. Section 8.5 of the Credit Agreement is hereby
deleted in its entirety and the following substituted therefor:

               8.5 Leverage Ratio.

               Permit at any time during each period set forth below its ratio
          of (i) the sum of (a) Consolidated Indebtedness plus (b) Consolidated
          Contingent Obligations to (ii) the sum of (x) Consolidated
          Indebtedness plus (y) Consolidated Contingent Obligations plus (z) the
          Company's Shareholders' Equity to be greater than the ratio set forth
          opposite such period:

                  Period                             Leverage Ratio
                  ------                             --------------

    Effective Date to and including                      0.650:1.0
    March 31, 2000

    April 1, 2000 to and including                       0.675:1.0
    June 30, 2000

    July 1, 2000 to and including                        0.675:1.0
    October 2, 2000

    October 3, 2000 and thereafter                       0.625:1.0

         1.14 Fixed Charge Coverage Ratio. Section 8.9 of the Credit Agreement
is hereby deleted in its entirety and the following substituted therefor:

               8.9 Fixed Charge Coverage Ratio.

               Permit the Fixed Charge Coverage Ratio to be less than:

               (i) 1.25 to 1.00 for the four fiscal quarters (taken as a whole)
          ending on December 31, 1999,

               (ii) 1.10 to 1.00 for the four fiscal quarters (taken as a whole)
          ending on March 31, 2000,

               (iii) 0.70 to 1.00 for the four fiscal quarters (taken as a
          whole) ending on June 30, 2000, and

               (iv) 1.00 to 1.00 for the four fiscal quarters (taken as a whole)
          ending on December 31, 2000, and for each four fiscal quarters (taken
          as a whole) ending on the last day of each March, June, September and
          December thereafter.

         1.15 Permitted Dispositions. Schedule B-1 to Amendment No. 3 is hereby
amended by deleting the reference therein to the "Aviation" Property (and
Minimum Net Cash Proceeds related thereto) and substituting the following
therefor:

            Asset                             Minimum Net Cash Proceeds
            -----                             -------------------------

     Aviation - Ground                               $115,000,000
     Aviation - Fueling                              $ 40,000,000
     Aviation - FBOs                                 $ 27,000,000

2.       CONDITIONS TO EFFECTIVENESS OF AMENDMENT.

         2.1 The effectiveness of the amendments set forth in this Amendment No.
5 is subject to the prior or simultaneous fulfillment of the following
conditions:

         (a) The Agent shall have received this Amendment No. 5 executed by (i)
a duly authorized officer or officers of the Company and (ii) each of the
Lenders;

         (b) The Agent shall have received such other documents as it shall have
reasonably requested consistent with the terms hereof;

         (c) The representations and warranties set forth in Section 3 hereof
shall be true and correct on and as of the Amendment No. 5 Effective Date;

         (d) Holders of Indebtedness under each Covenant Credit Facility
(including without limitation, the Covenant Credit Facilities set forth on
Schedule B hereto) shall have executed, to the extent required by each such
Covenant Credit Facility, waivers or amendments to such credit facilities
satisfactory to the Agent and the Required Lenders containing amendments to the
covenants and related definitions in such credit facilities identical to those
set forth in this Amendment No. 5;

         (e) The Agent shall have received a non-refundable amendment fee, for
the pro-rata benefit of the Lenders, equal to $125,000;

         (f) The Agent shall have received payment of all of its out-of-pocket
expenses, including the reasonable fees and expenses of its counsel Emmet,
Marvin & Martin, LLP incurred in connection with this Amendment No. 5;

         (g) The Agent shall have received the Projections;

         2.2 The date on which the conditions set forth in Section 2.1 are
satisfied is the "Amendment No. 5 Effective Date".

     3.   ACKNOWLEDGMENTS, REPRESENTATIONS AND WARRANTIES AND AGREEMENTS.

         3.1 The Company hereby (a) reaffirms and admits the validity and
enforceability of the Credit Agreement and the other Loan Documents and all of
its obligations thereunder, and (b) represents and warrants to the Agent and
each Lender:

               (i) As of the date hereof, there exists no Default or Event of
          Default.

               (ii) The Company has full corporate power and authority to enter
          into, execute, deliver and carry out the terms of this Amendment No.
          5, which has been duly authorized by all proper and necessary
          corporate action, and is not in violation of its Restated Certificate
          of Incorporation or By-Laws.

               (iii) No consent, authorization or approval of, filing with,
          notice to, or exemption by, stockholders, any Governmental Body or any
          other Person (except for those which have been obtained, made or
          given) is required to authorize, or is required in connection with the
          execution, delivery and performance of this Amendment No. 5, the
          Credit Agreement as amended hereby or any Loan Document, or is
          required as a condition to the validity or enforceability of this
          Amendment No. 5, the Credit Agreement as amended hereby or any Loan
          Document. No provision of any applicable statute, law (including
          without limitation, any applicable usury or similar law), rule or
          regulation of any Governmental Body will prevent the execution,
          delivery or performance of, or affect the validity of, this Amendment
          No. 5, the Credit Agreement as amended hereby or any Loan Document.

               (iv) This Amendment No. 5 constitutes the valid and legally
          binding obligation of the Company enforceable in accordance with its
          terms, except as such enforceability may be limited by applicable
          bankruptcy, insolvency, reorganization or similar laws affecting
          enforcement of creditors' rights generally or by general principles of
          equity.

               (v) The execution, delivery, carrying out of the terms of this
          Amendment No. 5, the Credit Agreement as amended hereby and the Loan
          Documents will not constitute a default under, conflict with, require
          any consent under (other than consents which have been obtained), or
          result in the creation or imposition of, or obligation to create, any
          Lien upon the Property or assets of the Company of any of its
          Subsidiaries pursuant to the terms of any mortgage, indenture
          (including, without limitation, the 1992 Senior Note Indenture),
          contract, agreement, judgment, decree or order.

         3.2 All references to "this Agreement" in the Credit Agreement and to
"the Credit Agreement" in the other Loan Documents shall be deemed to refer to
the Credit Agreement as amended by this Amendment No. 5.

         3.3 Except as specifically set forth herein, the Credit Agreement and
the other Loan Documents shall remain in full force and effect in accordance
with their terms.

         3.4 The Company acknowledges that in the event that there is a
restructuring of the Credit Facility Indebtedness and the Indebtedness of the
Company under the Credit Agreement and the Covenant Credit Facilities, it is
anticipated that the Liquidity Subfacility shall be amended and restated as a
tranche or portion of a new revolving credit facility and the obligations of the
Company in respect of the Liquidity Subfacility shall not be treated as funded
or unfunded obligations for purposes of allocating payments, commitments and
obligations in any "pooled" credit facility established in connection with such
restructuring.

     4. DISBURSEMENT AND RESERVE ACCOUNTS

         4.1 Each of the Company and each Lender hereby consents to the transfer
by the Agent of the sum of $67,750,000 from the Reserve Account to the
Disbursement Account (the "Amendment No. 5 Transfer"), (i) of which $1,000,000
shall be added to the Balaji Reserve, (ii) of which $9,500,000 shall be
available for the payment of Restructuring Costs (in addition to the $15,000,000
allocated to the payment of Restructuring Costs pursuant to Amendment No. 4 and
through the Amendment No. 4 Effective Date) and (iii) all of which may be
released from the Disbursement Account in accordance with Section 2.25 of the
Credit Agreement.

         4.2 The Company represents, warrants and agrees that, as of the
Amendment No. 5 Effective Date and after giving effect to the Amendment No. 5
Transfer, (i) the amount available for disbursement from the Disbursement
Account is $67,750,000 (after giving effect to the Balaji Reserve and the
Haripur Reserve); (ii) the amount on deposit in the Reserve Account is
$109,798,000; and (iii) no additional funds shall be deposited in the
Disbursement Account and no funds shall be transferred from the Reserve Account
to the Disbursement Account (and the Company is not entitled to have any
additional funds deposited in the Disbursement Account or have any funds
transferred from the Reserve Account to the Disbursement Account), subject to
(i) adjustment in accordance with the definition of "Restructuring Costs" set
forth in Amendment No. 3 or (ii) the prior written consent of the Required
Lenders and the requisite creditors under the Credit Facility Indebtedness.

     5. MISCELLANEOUS.

         5.1 This Amendment No. 5 may be executed by facsimile and in any number
of counterparts, each of which shall be an original and all of which shall
constitute one agreement. It shall not be necessary in making proof of this
Amendment No. 5 to produce or account for more than one counterpart signed by
the party to be charged.

         5.2 This Amendment No. 5 is being delivered in and is intended to be
performed in the State of New York and shall be construed and enforceable in
accordance with, and be governed by, the internal laws of the State of New York
without regard to principles of conflict of laws.

         5.3 The Company acknowledges and agrees that if and to the extent it
maintains any defenses to its obligations under the Credit Agreement and the
other Loan Documents arising through and including the date hereof, such
defenses are hereby waived and released as a specific condition to the
agreements of the Agent and the Lenders set forth herein, which waiver and
release are unconditional and without limitation.

         5.4 The Lenders waive for the purpose, and only for the purpose, of
permitting the Company to obtain disbursements from the Disbursement Account,
any Default or Event of Default arising from the failure of the Company to pay
the Pacific Energy Note due on August 1, 2000, provided that, and only so long
as, Pacific Energy does not take any action (by legal proceeding or otherwise)
to enforce, to compel or to obtain payment of such Note.

     The parties hereto have caused this Amendment No. 5 to be duly executed and
delivered by their proper and duly authorized officers as of the day and year
first above written.

                                                    OGDEN CORPORATION

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

<PAGE>

                  AMENDMENT NO. 5 - REVOLVING CREDIT AGREEMENT

                                                    THE BANK OF NEW YORK,
                                                    Individually and as Agent

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

                                                    BANK OF AMERICA, N.A.

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

                                                    THE CHASE MANHATTAN
                                                    BANK

                                                    DEUTSCHE BANK AG
                                                    New York and/or Cayman
                                                    Islands Branches

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

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

<PAGE>

                  AMENDMENT NO. 5 - REVOLVING CREDIT AGREEMENT

                                                    UBS AG
                                                    Stamford Branch

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

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

                                                    WESTDEUTSCHE LANDESBANK
                                                    GIROZENTRALE

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

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

                                                    THE BANK OF NOVA SCOTIA

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

<PAGE>

                  AMENDMENT NO. 5 - REVOLVING CREDIT AGREEMENT

                                                    CREDIT LYONNAIS NEW YORK
                                                    BRANCH

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

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

                                                    FLEET NATIONAL BANK

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

                                                    FIRST UNION NATIONAL BANK

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

<PAGE>

                                   SCHEDULE A
                     TO AMENDMENT NO. 5 TO CREDIT AGREEMENT

                                   Projections

<PAGE>

                                   SCHEDULE B
                     TO AMENDMENT NO. 5 TO CREDIT AGREEMENT

     1.   Bank of America - Iguazu - $25,000,000 promissory note maturing on
          July 31, 2000

<PAGE>

                                   SCHEDULE C
                     TO AMENDMENT NO. 5 TO CREDIT AGREEMENT

     1.   Dai-Ichi Kangyo Bank - workers compensation - $15,000,000 and
          $7,500,000 letters of credit expiring on August 31, 2000

     2.   Crestar Bank - Fairfax - $900,000 letter of credit expiring on
          September 1, 2000

     3.   Deutsche Bank - Palladium $95,000,000 letter of credit expiring on
          October 1, 2000.

     4.   Huntington - workers compensation - $7,500,000 letter of credit
          expiring on August 31, 2000.

     5.   Chase - Greenway - $1,275,000 letter of credit expiring on September
          12, 2000.

<PAGE>

                                   SCHEDULE D
                     TO AMENDMENT NO. 5 TO CREDIT AGREEMENTEXHIBIT 10.1(b)(vi)
                               -------------------

                                 AMENDMENT NO. 6
                               TO CREDIT AGREEMENT

     AMENDMENT NO. 6 (this "Amendment No. 6"), dated as of September 30, 2000,
under the Credit Agreement dated as of June 30, 1997, by and among OGDEN
CORPORATION, a Delaware corporation (the "Company"), the Signatory Lenders party
thereto (the "Lenders") and THE BANK OF NEW YORK, as Agent (the "Agent"), as
amended by Amendment No. 1 to Credit Agreement, dated as of August 18, 1999,
Amendment No. 2 to Credit Agreement, dated as of December 20, 1999, Amendment
No. 3 to Credit Agreement, dated as of March 31, 2000, Amendment No. 4 to Credit
Agreement, dated as of June 30, 2000 and Amendment No. 5 to Credit Agreement,
dated as of July 31, 2000 (the "Credit Agreement").

                                    RECITALS

     I. Capitalized terms used herein which are not herein defined shall have
the respective meanings ascribed thereto in the Credit Agreement.

     II. The Company has requested that the Agent and the Lenders amend the
Credit Agreement in certain respects and the Agent and the Lenders have advised
the Company that they are willing to agree to the Company's request, subject to
the terms and conditions set forth herein.

         Accordingly, in consideration of the covenants, conditions and
agreements hereinafter set forth, and for other good and valuable consideration,
the receipt and adequacy of which are hereby acknowledged, the parties hereto
agree as follows:

     1.  AMENDMENTS TO CREDIT AGREEMENT

         1.1 Additional Definitions. Section 1.1 of the Credit Agreement is
hereby amended by adding the following defined terms in the appropriate
alphabetical order:

         "Amendment No. 6": Amendment No. 6 to Credit Agreement, dated as of
         September 30, 2000, among the Company, the Lenders party thereto and
         the Agent.

         "Amendment No. 6 Effective Date": the date on which the conditions set
         forth in Section 2.1 of Amendment No. 6 are satisfied.

         1.2 Projections. The definition of "Projections" set forth in Section
1.1 of the Credit Agreement is hereby deleted in its entirety and the following
substituted therefor:

         "Projections": the projections of the Company dated September 27, 2000,
     for the period through December 31, 2000, delivered to the Agent and the
     Lenders and annexed to Amendment No. 6 as Schedule A.

     1.3 Shareholders' Equity. Section 7.11 of the Credit Agreement is hereby
deleted in its entirety and the following substituted therefor:

         7.11 Shareholder's Equity.
              ---------------------

         Maintain at all times for each period set forth below its Shareholders'
     Equity in an amount not less than the amount set forth opposite such
     period:

                Period                  Minimum Shareholders' Equity
                ------                  ----------------------------

        Effective Date to and including          $440,000,000
        December 31, 1999

        January 1, 2000 to and including         $400,000,000
        March 31, 2000

        April 1, 2000 to and including           $375,000,000
        June 30, 2000

        July 1, 2000 to and including            $375,000,000
        October 2, 2000

        October 3, 2000 to and including
        November 30, 2000                        $375,000,000

        December 1, 2000 and thereafter          $440,000,000

     1.4 Leverage Ratio. Section 8.5 of the Credit Agreement is hereby deleted
in its entirety and the following substituted therefor:

         8.5 Leverage Ratio.
             ---------------

         Permit at any time during each period set forth below its ratio of (i)
     the sum of (a) Consolidated Indebtedness plus (b) Consolidated Contingent
     Obligations to (ii) the sum of (x) Consolidated Indebtedness plus (y)
     Consolidated Contingent Obligations plus (z) the Company's Shareholders'
     Equity to be greater than the ratio set forth opposite such period:

                      Period                         Leverage Ratio
                      ------                         --------------

        Effective Date to and including                0.650:1.0
        March 31, 2000

        April 1, 2000 to and including                 0.675:1.0
        June 30, 2000

        July 1, 2000 to and including                  0.675:1.0
        October 2, 2000

        October 3, 2000 to and including
        November 30, 2000                              0.675:1.0

        December 1, 2000 and thereafter                0.625:1.0

     1.5 Fixed Charge Coverage Ratio. Section 8.9 of the Credit Agreement is
hereby deleted in its entirety and the following substituted therefor:

         8.9 Fixed Charge Coverage Ratio.
             ----------------------------

             Permit the Fixed Charge Coverage Ratio to be less than:

             (i) 1.25 to 1.00 for the four fiscal quarters (taken as a whole)
         ending on December 31, 1999,

             (ii) 1.10 to 1.00 for the four fiscal quarters (taken as a whole)
         ending on March 31, 2000,

             (iii) 0.70 to 1.00 for the four fiscal quarters (taken as a whole)
         ending on June 30, 2000, and

             (iv) 0.70 to 1.00 for the four fiscal quarters (taken as a whole)
         ending on September 30, 2000, and

             (v) 1.25 to 1.00 for the four fiscal quarters (taken as a whole)
         ending on December 31, 2000, and for each four fiscal quarters (taken
         as a whole) ending on the last day of each March, June, September and
         December thereafter.

         1.6 Sale of Property.
              -----------------

         (a) Permitted Dispositions. Schedule B-1 to Amendment No 3 is hereby
amended by deleting the line "Aviation - FBO's - $27,000,000" and substituting
therefor the following:

          "Aviation FBO's      $15,700,000, of which

                               $13,700,000 shall be payable in a first
                               installment upon the closing of the sale, and

                               $  2,000,000 (or such greater amount as may
                               be due to the Company) shall be payable in
                               a second installment on or before
                               January 31, 2001"

         (b) Section 8.6 is amended adding the following sub-Section 8.6(v):

         "The agreement of the Lenders to permit the Company to
         receive the payment of the purchase price of "Aviation -
         FBO's" in installments pursuant to Section 8.6(iv) shall not
         affect the obligation of the Company to remit the proceeds
         of the purchase price, whenever received, to the
         Disbursement Account or the Reserve Account in accordance
         with Section 8.6(iv) (c) and (d)."

     2. CONDITIONS TO EFFECTIVENESS OF AMENDMENT.

     2.1 The effectiveness of the amendments set forth in this Amendment No. 6
is subject to the prior or simultaneous fulfillment of the following conditions:

         (a) The Agent shall have received this Amendment No. 6 executed by (i)
a duly authorized officer or officers of the Company and (ii) each of the
Required Lenders;

         (b) The Agent shall have received such other documents as it shall have
reasonably requested consistent with the terms hereof;

         (c) The representations and warranties set forth in Section 3 hereof
shall be true and correct on and as of the Amendment No. 6 Effective Date;

         (d) Holders of Indebtedness under each Covenant Credit Facility shall
have executed, to the extent required by each such Covenant Credit Facility,
waivers or amendments to such credit facilities satisfactory to the Agent and
the Required Lenders containing amendments to the covenants and related
definitions in such credit facilities identical to those set forth in this
Amendment No. 6;

         (e) The Agent shall have received a non-refundable amendment fee, for
the pro-rata benefit of the Lenders, equal to $62,500 (1/8 of 1%);

         (f) The Agent shall have received (i) payment of all of its
out-of-pocket expenses, including the reasonable fees and expenses of its
counsel Emmet, Marvin & Martin, LLP incurred in connection with the Agreement
and this Amendment No. 6 and (ii) confirmation that all reasonable fees and
expenses due to Ernst & Young Restructuring LLC ("E&Y") and O'Melveny & Myers,
LLP to the Amendment No. 6 Effective Date have been paid; and

         (g) The Agent shall have received the Projections.

     2.2 The date on which the conditions set forth in Section 2.1 are satisfied
is the "Amendment No. 6 Effective Date".

 3.  ACKNOWLEDGMENTS, REPRESENTATIONS AND WARRANTIES AND AGREEMENTS.

     3.1 The Company hereby (a) reaffirms and admits the validity and
enforceability of the Credit Agreement and the other Loan Documents and all of
its obligations thereunder, and (b) represents and warrants to the Agent and
each Lender:

         (i) As of the date hereof, there exists no Default or Event of Default,
     except for Defaults or Events of Default arising from (1) the failure of
     the Company to pay when due the notes payable to Pacific Energy Corp., and
     (2) the failure of the Company or its Subsidiary to pay when due the note
     payable to Sumitomo Bank having an outstanding principal balance of
     approximately $7,800,000.

         (ii) The Company has full corporate power and authority to enter into,
     execute, deliver and carry out the terms of this Amendment No. 6, which has
     been duly authorized by all proper and necessary corporate action, and is
     not in violation of its Restated Certificate of Incorporation or By-Laws.

         (iii) No consent, authorization or approval of, filing with, notice to,
     or exemption by, stockholders, any Governmental Body or any other Person
     (except for those which have been obtained, made or given) is required to
     authorize, or is required in connection with the execution, delivery and
     performance of this Amendment No. 6, the Credit Agreement as amended hereby
     or any Loan Document, or is required as a condition to the validity or
     enforceability of this Amendment No. 6, the Credit Agreement as amended
     hereby or any Loan Document. No provision of any applicable statute, law
     (including without limitation, any applicable usury or similar law), rule
     or regulation of any Governmental Body will prevent the execution, delivery
     or performance of, or affect the validity of, this Amendment No. 6, the
     Credit Agreement as amended hereby or any Loan Document.

         (iv) This Amendment No. 6 constitutes the valid and legally binding
     obligation of the Company enforceable in accordance with its terms, except
     as such enforceability may be limited by applicable bankruptcy, insolvency,
     reorganization or similar laws affecting enforcement of creditors' rights
     generally or by general principles of equity.

         (v) The execution, delivery, carrying out of the terms of this
     Amendment No. 6, the Credit Agreement as amended hereby and the Loan
     Documents will not constitute a default under, conflict with, require any
     consent under (other than consents which have been obtained), or result in
     the creation or imposition of, or obligation to create, any Lien upon the
     Property or assets of the Company of any of its Subsidiaries pursuant to
     the terms of any mortgage, indenture (including, without limitation, the
     1992 Senior Note Indenture), contract, agreement, judgment, decree or
     order.

         3.2 The Company's management acknowledges receipt of a Term Sheet (a
copy of which is annexed hereto) outlining certain terms of intercreditor
arrangements and credit facilities among the Company and the creditors under
"Covenant Lender Credit Facilities" (the "Term Sheet") and intends to recommend
approval of the Term Sheet to its Board of Directors subject to: (i) final
documentation that is satisfactory to the Company; (ii) receipt of all necessary
approvals from the Board of Directors; and (iii) confirmation that all of the
lenders to be party to the credit facilities described in the Term Sheet
(including, without limitation, the Lenders) are also in agreement with the
terms of such Term Sheet, subject to such lenders' receipt of any internal
approvals that such lenders might require, it being understood that the members
of the Steering Committee intend to recommend such approval. The Steering
Committee intends to recommend approval, provided, however, the Company
acknowledges and agrees that (i) the Term Sheet has not been approved or
accepted by any Lender proposed to be a party to the credit facilities described
therein, (ii) the entering into of this Amendment and the other contemplated
amendments to the credit facility indebtedness shall not constitute an
acceptance by any Lender of the Term Sheet, (iii) certain of the Lenders have
not reviewed or endorsed the Term Sheet or the restructuring proposals contained
therein, (iv) no Lender has committed to, or is obligated to, enter into any
restructuring of its credit facilities with the Company or any other Person, and
(v) each Lender is expressly reserving all of its rights and remedies under such
credit facilities (provided that nothing in clauses (iv) and (v) of this
sentence is intended to or does modify the amendments and waivers set forth in
this Amendment No. 6).

         3.3 The Company and the Lenders acknowledge and agree that on and
effective October 2, 2000 the Liquidity Subfacility of $50,000,000 and the
corresponding Commitments are terminated and further acknowledge and agree that
as of the date of this Amendment No. 6, no Liquidity Loans are outstanding and
the Company has no obligation to repay the principal amount of any Liquidity
Loan or any interest thereon.

         3.4 All references to "this Agreement" in the Credit Agreement and to
"the Credit Agreement" in the other Loan Documents shall be deemed to refer to
the Credit Agreement as amended by this Amendment No. 6.

         3.5 Except as specifically set forth herein, the Credit Agreement and
the other Loan Documents shall remain in full force and effect in accordance
with their terms.

     4.  DISBURSEMENT AND RESERVE ACCOUNTS

         4.1 Each of the Company and each Lender hereby consents to the
immediate transfer by the Agent of the sum of $36,500,000 from the Reserve
Account to the Disbursement Account (the "Amendment No. 6 Transfer") of which
(i) $34,500,000 may be released from the Disbursement Account in accordance with
Section 2.25 of the Credit Agreement and (ii) $2,000,000 shall be reserved to be
used exclusively to cash collateralize the $2,000,000 "step-up" of the letter of
credit issued by Commerzbank to General Electric Capital Corporation with
respect to the Hennepin Project (the "Hennepin Reserve"), provided that, prior
to the Company's utilization of the $2,000,000 for such purpose, the Steering
Committee shall have received, reviewed and approved an amendment to the
reimbursement agreement with respect to such letter of credit and an amendment
extending the expiration date of, and increasing the face amount (by such
"step-up") of, such letter of credit.

         4.2 The Company represents, warrants and agrees that, as of the
Amendment No. 6 Effective Date and after giving effect to the Amendment No. 6
Transfer, (i) the amount available for disbursement from the Disbursement
Account is $34,799,039 (after giving effect to the Balaji Reserve, the Haripur
Reserve and the Hennepin Reserve); (ii) the amount on deposit in the Reserve
Account is $75,856,779; (iii) no additional funds shall be deposited in the
Disbursement Account and no funds shall be transferred from the Reserve Account
to the Disbursement Account (and the Company is not entitled to have any
additional funds deposited in the Disbursement Account or have any funds
transferred from the Reserve Account to the Disbursement Account), subject to
the prior written consent of the Required Lenders and the requisite creditors
under the Credit Facility Indebtedness; and (iv) the funds in the Disbursement
Account and the Reserve Account have been invested by the Agent as directed by
the Company in accordance with the provisions of Section 2.25(i) of the
Agreement.

     5.  MISCELLANEOUS.

         5.1 This Amendment No. 6 may be executed by facsimile and in any number
of counterparts, each of which shall be an original and all of which shall
constitute one agreement. It shall not be necessary in making proof of this
Amendment No. 6 to produce or account for more than one counterpart signed by
the party to be charged.

         5.2 This Amendment No. 6 is being delivered in and is intended to be
performed in the State of New York and shall be construed and enforceable in
accordance with, and be governed by, the internal laws of the State of New York
without regard to principles of conflict of laws.

         5.3 The Company acknowledges and agrees that if and to the extent it
maintains any defenses to its obligations under the Credit Agreement and the
other Loan Documents arising through and including the date hereof, such
defenses are hereby waived and released as a specific condition to the
agreements of the Agent and the Lenders set forth herein, which waiver and
release are unconditional and without limitation.

         5.4 The Lenders waive for the purpose, and only for the purpose, of
permitting the Company to obtain disbursements from the Disbursement Account,
the Defaults or Events of Default described in Section 3.1(i), provided that,
and only so long as, neither Pacific Energy nor Sumitomo takes any action (by
legal proceeding or otherwise) to enforce, to compel or to obtain payment of its
notes or reimbursement obligations, as the case may be.

         5.5 Each of the Company, the Agent and each Lender acknowledges that
nothing in this Amendment No. 6, the Credit Agreement, as amended hereby, or the
Term Sheet shall in any way limit the rights or remedies of the Agent and the
Lenders upon the occurrence and during the continuance of an Event of Default or
constitute a so-called "standstill agreement" (and neither this Amendment No. 6,
the Term Sheet nor any of the other amendments to the documents governing the
Credit Facility Indebtedness shall be deemed to create any standstill
obligation) between (i) the Company and any of its creditors or (ii) among any
of the Company's creditors, and that each holder of indebtedness of the Company
(including, without limitation, Credit Facility Indebtedness) shall retain all
of its respective rights and remedies with respect to such indebtedness in
accordance with the terms thereof, at law or otherwise.

     The parties hereto have caused this Amendment No. 6 to be duly executed and
delivered by their proper and duly authorized officers as of the day and year
first above written.

                                                  OGDEN CORPORATION

                                                  By:
                                                     -----------------

                                                  Title:
                                                        --------------

<PAGE>

                  AMENDMENT NO. 6 - REVOLVING CREDIT AGREEMENT
                  --------------------------------------------

                                                    THE BANK OF NEW YORK,
                                                    Individually and as Agent

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

                                                    BANK OF AMERICA, N.A.

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

                                                    THE CHASE MANHATTAN BANK

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

                                                    DEUTSCHE BANK AG
                                                    New York and/or Cayman
                                                    Islands Branches

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

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

<PAGE>

                  AMENDMENT NO. 6 - REVOLVING CREDIT AGREEMENT

                                                    UBS AG
                                                    Stamford Branch

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

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

                                                    WESTDEUTSCHE LANDESBANK
                                                    GIROZENTRALE

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

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

                                                    THE BANK OF NOVA SCOTIA

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

<PAGE>

                  AMENDMENT NO. 6 - REVOLVING CREDIT AGREEMENT

                                                   CREDIT LYONNAIS NEW YORK
                                                   BRANCH

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

                                                   FLEET NATIONAL BANK

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

                                                   FIRST UNION NATIONAL BANK

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

<PAGE>

                                   SCHEDULE A
                     TO AMENDMENT NO. 6 TO CREDIT AGREEMENT

                                   Projections

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