EXECUTION VERSION


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                                CREDIT AGREEMENT



                                      among



                            NORTHWESTERN CORPORATION,
                                  as Borrower,



              The Several Lenders from Time to Time Parties Hereto,



                                       and



                           CREDIT SUISSE FIRST BOSTON,
                    acting through its Cayman Islands Branch,
                            as Administrative Agent,
                       Lead Arranger and Sole Book Runner





                          Dated as of December 17, 2002


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                                TABLE OF CONTENTS

                                                                                   Page
                                                                                   ----

                                                                                
ARTICLE 1.  DEFINITIONS...............................................................1

   1.1     Defined Terms..............................................................1
   1.2     Other Definitional Provisions.............................................21

ARTICLE 2.  AMOUNT AND TERMS OF COMMITMENTS..........................................22

   2.1     Commitments and Loans.....................................................22
   2.2     Evidence of Indebtedness..................................................22
   2.3     Procedure for Borrowing...................................................23
   2.4     Fees......................................................................23
   2.5     Repayment of Loans........................................................23
   2.6     Optional and Mandatory Prepayments........................................23
   2.7     Interest Rate Conversion and Continuation Options.........................25
   2.8     Maximum Amounts of Eurodollar Tranches....................................26
   2.9     Interest Rates; Default Rate Payment Dates................................26
   2.10    Computation of Interest...................................................26
   2.11    Inability to Determine Interest Rate......................................27
   2.12    Pro Rata Treatment and Payments; Funding Reliance.........................27
   2.13    Illegality................................................................28
   2.14    Requirements of Law.......................................................28
   2.15    Taxes.....................................................................29
   2.16    Indemnity.................................................................32
   2.17    Discretion of Lender as to Manner of Funding..............................32
   2.18    Change of Lending Office; Replacement Lender..............................33

ARTICLE 3.  REPRESENTATIONS AND WARRANTIES...........................................33

   3.1     Financial Condition.......................................................34
   3.2     No Change.................................................................34
   3.3     Corporate Existence; Compliance with Law..................................34
   3.4     Corporate Power; Authorization; Enforceable Obligations...................35
   3.5     No Legal Bar..............................................................35
   3.6     No Material Litigation....................................................36
   3.7     No Default................................................................36
   3.8     Ownership of Property; Liens..............................................36
   3.9     [Intentionally Omitted]...................................................36
   3.10    Intellectual Property.....................................................36
   3.11    No Burdensome Restrictions................................................36
   3.12    Taxes.....................................................................36
   3.13    Margin Stock..............................................................37
   3.14    ERISA.....................................................................37
   3.15    Holding Company; Investment Company Act; Other Regulations................37
   3.16    Purpose of Loans..........................................................38
   3.17    Environmental Matters.....................................................38
   3.18    Insurance.................................................................38



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   3.19    Accuracy and Completeness of Information..................................39
   3.20    Leaseholds, Permits, etc..................................................39
   3.21    No Restrictive Covenants..................................................39
   3.22    Solvency..................................................................40
   3.23    Montana First Mortgage Indenture..........................................40
   3.24    South Dakota First Mortgage Indenture.....................................41
   3.25    Subsidiaries..............................................................42

ARTICLE 4.  CONDITIONS PRECEDENT.....................................................43

   4.1     Conditions to Closing Date................................................43
   4.2     Conditions to the Funding Date............................................45
   4.3     Conditions to Cash Collateral Release.....................................46

ARTICLE 5.  AFFIRMATIVE COVENANTS....................................................48

   5.1     Financial Statements......................................................48
   5.2     Certificates; Other Information...........................................48
   5.3     Payment and Performance of Obligations....................................49
   5.4     Maintenance of Existence..................................................49
   5.5     Maintenance of Property; Insurance........................................50
   5.6     Inspection of Property; Books and Records; Discussions....................50
   5.7     Notices...................................................................50
   5.8     Environmental Laws........................................................51
   5.9     ERISA.....................................................................51
   5.10    Use of Proceeds...........................................................52
   5.11    Margin Stock..............................................................52
   5.12    Maintain Ownership of the Utility Business................................52
   5.13    Post-Closing Matters......................................................52
   5.14    Credit Ratings............................................................52
   5.15    Excluded Subsidiaries.....................................................53

ARTICLE 6.  NEGATIVE COVENANTS.......................................................53

   6.1     Financial Covenants.......................................................53
   6.2     Limitation on Fundamental Changes.........................................54
   6.3     Limitation on Transactions with Affiliates................................55
   6.4     Limitation on Liens.......................................................55
   6.5     Amendments of Organizational Documents....................................55
   6.6     Limitation on Guarantee Obligations.......................................55
   6.7     Limitation on Sale of Assets..............................................55
   6.8     Limitation on Investments, Loans and Advances.............................56
   6.9     Limitation on Dividends and Stock Repurchases.............................57
   6.10    Limitation on Indebtedness or Mandatory Redeemable Stock..................58
   6.11    Limitation on Sales and Leasebacks........................................59
   6.12    Limitation on Negative Pledge Clauses; Payment Restrictions...............60
   6.13    Limitation on Businesses..................................................60
   6.14    Limitation on Certain Prepayments and Amendments..........................60
   6.15    Limitations on Subsidiaries' Equity Interests.............................61



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   6.16    Limitation on Release of Mortgaged Property; Limitation in Respect of
           Insurance.................................................................61
   6.17    Limitation on Subjecting Property or Other Assets to the Lien of the Other
           Indenture.................................................................61
   6.18    Prohibition on Designating Class "A" Mortgages or Permitting Qualified
           Lien Bonds to Exist.......................................................62
   6.19    Limitation on Amendments or Supplements to the Indentures.................62
   6.20    Prohibition on Second Mortgage Bonds......................................62

ARTICLE 7.  EVENTS OF DEFAULT........................................................62

   7.1     Events of Default.........................................................62

ARTICLE 8.  THE AGENTS...............................................................65

   8.1     Appointment...............................................................65
   8.2     Delegation of Duties......................................................65
   8.3     Exculpatory Provisions....................................................65
   8.4     Reliance by Agents........................................................66
   8.5     Notice of Default.........................................................66
   8.6     Non-Reliance on Agents and Other Lenders..................................66
   8.7     Indemnification...........................................................67
   8.8     Agent in Its Individual Capacity..........................................67
   8.9     Successor Administrative Agent............................................67

ARTICLE 9.  MISCELLANEOUS............................................................68

   9.1     Amendments and Waivers....................................................68
   9.2     Notice....................................................................69
   9.3     No Waiver; Cumulative Remedies............................................69
   9.4     Survival of Representations and Warranties................................70
   9.5     Payment of Expenses and Taxes; Indemnification............................70
   9.6     Successors and Assigns; Participations and Assignments....................70
   9.7     Adjustments; Setoff.......................................................74
   9.8     Confidentiality...........................................................74
   9.9     Effectiveness.............................................................75
   9.10    Counterparts..............................................................75
   9.11    Severability..............................................................75
   9.12    Integration...............................................................75
   9.13    GOVERNING LAW.............................................................75
   9.14    Submission To Jurisdiction; Waivers.......................................75
   9.15    Acknowledgments...........................................................76
   9.16    Waivers of Jury Trial.....................................................76



                                      iii



EXHIBITS AND SCHEDULES

Exhibit A-1           Form of Term Note
Exhibit A-2           Form of QFL Note
Exhibit B-1           Form of Notice of Borrowing
Exhibit B-2           Form of Notice of Interest Rate Conversion
Exhibit C             Form of Closing Certificate
Exhibit D             Form of Assignment and Assumption Agreement


Schedule I            Lending Offices of Lenders
Schedule 3.4a         First Mortgage Approvals
Schedule 3.4b         Required Consents of Governmental Authorities
Schedule 3.8          Exceptions to Title to Borrower's Properties
Schedule 3.12         Taxes
Schedule 3.14         ERISA
Schedule 3.15         Regulations Limiting Indebtedness
Schedule 3.17         Environmental Matters
Schedule 3.25         Subsidiaries
Schedule 6.3          Transactions with Affiliates
Schedule 6.4          Liens Securing Indebtedness for Money Borrowed
Schedule 6.6          Guarantee Obligations
Schedule 6.8          Investments
Schedule 6.10         Indebtedness, Mandatory Redeemable Stock and Preferred
                      Stock



                                       iv




               CREDIT   AGREEMENT,   dated  as  of  December  17,  2002,   among
NORTHWESTERN CORPORATION,  a Delaware corporation (the "Borrower"),  the several
banks and other  financial  institutions  from time to time  party  hereto  (the
"Lenders"),  and CREDIT SUISSE FIRST BOSTON,  acting  through its Cayman Islands
Branch, as Administrative  Agent (in such capacity the "Administrative  Agent"),
Lead Arranger and Sole Book Runner.

                             PRELIMINARY STATEMENTS

        1. The Borrower has requested the Lenders  extend credit to the Borrower
in the form of term  loans in an  aggregate  principal  amount  not in excess of
$390,000,000.  The proceeds of the Loans are to be used by the Borrower first to
repay in full, and terminate,  the Existing  Credit  Agreement and thereafter to
provide  working  capital and for other general  corporate  purposes.  The Loans
shall  be  secured  by the  issuance  of  certain  first  mortgage  bonds to and
registered in the name of the  Collateral  Agent for the ratable  benefit of the
Lenders (it being understood that payments on the Loans shall be deemed payments
on such first  mortgage bonds and payments on such first mortgage bonds shall be
applied  to the  payment  of the  Loans).  Prior to the  issuance  of such first
mortgage bonds, the Loans shall be secured by the proceeds of the Loans.

        2. In consideration  of the foregoing  premises and the mutual covenants
herein contained and for other good and valuable  consideration  the receipt and
sufficiency of which are hereby acknowledged,  the parties hereto,  intending to
be legally bound, hereby agree as follows:

                             ARTICLE 1. DEFINITIONS

        1.1 Defined Terms. As used in this Agreement,  the following terms shall
have the
following meanings:

               "Administrative Agent" shall have the meaning ascribed thereto in
        the heading  hereto and shall  include  such other  Lender or  financial
        institution as shall have  subsequently  been appointed as the successor
        Administrative Agent pursuant to Section 8.9.

               "Affected  Lender"  shall have the  meaning  ascribed  thereto in
        Section 2.18.

               "Affiliate" shall mean, as to any Person, any other Person which,
        directly or  indirectly,  is in control of (including  all directors and
        officers of such Person),  is controlled  by, or is under common control
        with,  such  Person.  For  purposes of this  definition,  "control" of a
        Person shall mean the power, directly or indirectly,  to direct or cause
        the direction of the management and policies of such Person,  whether by
        ownership of voting securities, by contract or otherwise.

               "Agents" shall have the meaning ascribed thereto in Section 8.1.



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               "Agreement"  shall  mean  this  Credit  Agreement,   as  amended,
        supplemented or otherwise modified from time to time.

               "Alternate Base Rate" shall mean, on any particular  date, a rate
        of interest per annum equal to the highest of

               (a)    the rate of interest  most  recently  announced by CSFB as
                      its prime  rate in effect at its  principal  office in New
                      York City  (which rate is not  necessarily  intended to be
                      the lowest rate of interest  charged by CSFB in connection
                      with extensions of credit);

               (b)    the Federal Funds Rate for such date plus 0.50% and

               (c)    4.00%.

               "Alternate Base Rate Loans" shall mean Loans the rate of interest
        applicable to which is based upon the Alternate Base Rate.

               "Approved  Fund" shall mean, with respect to any Lender that is a
        fund or commingled  investment vehicle that invests in commercial loans,
        any other  fund that  invests  in  commercial  loans and is  managed  or
        advised by the same investment advisor as such Lender or by an Affiliate
        of such investment advisor.

               "Arranger" shall mean CSFB and its successors.

               "Asset  Disposition"  shall  mean  (i) any  sale,  lease or other
        disposition  (including  (x) any  such  transaction  effected  by way of
        merger or consolidation and (y) any sale-leaseback transaction,  whether
        or  not  involving  a  Financing   Lease)  (any  such   transaction,   a
        "disposition"), by the Borrower or any of its Subsidiaries, of any asset
        subject to the Lien of an Indenture  (other than any  disposition of any
        asset released from the Lien of an Indenture as described in clause (i),
        (ii) or (iv) of Section  6.16),  and (ii) receipt by the Borrower or any
        of its  Subsidiaries of any proceeds of insurance,  condemnation  awards
        (or payments in lieu thereof) or indemnity payments payable by reason of
        theft,  loss,  physical  destruction or damage,  taking or similar event
        with respect to any equipment, fixed asset, real property or other asset
        subject to the Lien of an  Indenture  (other than as permitted in clause
        (iv) of Section 6.16).

               "Assignee"  shall have the  meaning  ascribed  thereto in Section
        9.6(c).

               "Assignment  and  Assumption  Agreement"  shall have the  meaning
        ascribed thereto in Section 9.6(c).

               "Availability  Period"  shall mean the period from and  including
        the Closing Date to, and including, February 10, 2003.

               "Benefited  Lender"  shall have the meaning  ascribed  thereto in
        Section 9.7(a).





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               "Blue Dot" shall mean,  collectively,  Blue Dot Services, Inc., a
        Delaware  corporation  and an indirect  wholly owned  subsidiary  of the
        Borrower, and its Subsidiaries.

               "Bond   Collateral   Agreement"  shall  mean  a  bond  collateral
        agreement  between the Borrower and the Collateral Agent for the benefit
        of the  Secured  Parties  (as  therein  defined)  in form and  substance
        reasonably satisfactory to the Borrower and the Collateral Agent.

               "Borrower" shall have the meaning ascribed thereto in the heading
        hereto.

               "Business"  shall have the  meaning  ascribed  thereto in Section
        3.17(a).

               "Business Day" shall mean a day other than a Saturday,  Sunday or
        other day on which  commercial  banks in New York City are authorized or
        required  by law  to  close;  provided,  however,  that,  when  used  in
        connection  with a Eurodollar  Loan,  the term "Business Day" shall also
        exclude any day on which  banks are not open for  dealings in Dollars in
        the interbank market in London, England.

               "Capital  Expenditures" of any Person shall mean, for any period,
        without  duplication,  all  expenditures  (whether paid in cash or other
        consideration)  during such period that, in accordance with GAAP, are or
        should be included in  additions  to  property,  plant and  equipment or
        similar  items  reflected in the statement of cash flows for such period
        for such Person.

               "Capital  Stock"  shall  mean  any  and  all  shares,  interests,
        participations  or other  equivalents  (however  designated)  of capital
        stock of a corporation,  any and all equivalent ownership interests in a
        Person (other than a corporation) and any and all warrants or options to
        purchase any of the foregoing.

               "Cash Collateral Account" shall have the meaning ascribed thereto
        in the Security Agreement.

               "Cash  Collateral  Release Date" shall mean the date on which all
        of the conditions precedent set forth in Section 4.3 have been satisfied
        or waived by the Required  Lenders and the Collateral  Agent is required
        pursuant to the terms  thereof to release the amounts then on deposit in
        the Cash Collateral Account as provided for herein.

               "Cash  Equivalents"  shall mean (a) securities with maturities of
        one year or less from the date of acquisition issued or fully guaranteed
        or insured by the United States  Government or any agency  thereof,  (b)
        certificates  of deposit and eurodollar time deposits with maturities of
        one  year or less  from  the  date of  acquisition  and  overnight  bank
        deposits of any Lender and  certificates  of deposit with  maturities of
        one  year or less  from  the  date of  acquisition  and  overnight  bank
        deposits  of any other  commercial  bank  having  capital and surplus in
        excess of  $500,000,000,  (c)  commercial  paper of any issuer  rated at
        least A-2 by Standard & Poor's or P-2 by Moody's,  (d) additional  money
        market  investments with





                                       3




        maturities  of one year or less  from the date of  acquisition  rated at
        least A1 or AA by  Standard  & Poor's  or P-1 or Aa by  Moody's  and (e)
        tax-exempt debt  obligations of any State of the United States or of any
        county or other  municipal  government  subdivision  of any State of the
        United  States  with  maturities  of one  year or less  from the date of
        acquisition  rated at the highest  investment grade rating by Standard &
        Poor's or by  Moody's,  or publicly  traded or open-end  bond funds that
        invest exclusively in such tax-exempt debt obligations.

               "Change  of  Control"  shall  mean the  occurrence  of any of the
        following:

               (a) any Person or "group" (within the meaning of Section 13(d) or
        14(d) of the  Securities  Exchange Act of 1934) (i) shall have  acquired
        beneficial ownership of 40% or more of the aggregate outstanding classes
        of Capital Stock having voting power in the election of directors of the
        Borrower or (ii) shall obtain the power  (whether or not  exercised)  to
        elect a majority of the Borrower's directors;

               (b) a  majority  of  the  persons  who  comprised  the  Board  of
        Directors of the  Borrower on the date hereof shall be replaced,  unless
        such replacement  shall have been approved by at least two-thirds of the
        Board of Directors of the Borrower  then still in office who either were
        members of such Board of Directors on the date hereof or whose  election
        as a member of such Board of Directors was previously so approved; or

               (c) the Borrower shall be liquidated or dissolved.

               "Closing  Date"  shall  mean  the date on  which  the  conditions
        precedent  set forth in Section 4.1 shall be  satisfied or waived by the
        Required Lenders.

               "Code" shall mean the Internal  Revenue Code of 1986,  as amended
        from time to time.

               "Collateral"  shall  have the  meaning  ascribed  thereto  in the
        Collateral Documents.

               "Collateral  Agent" shall mean CSFB as collateral agent under the
        Security Agreement and the Bond Collateral Agreement.

               "Collateral  Documents" shall mean a collective  reference to the
        First Mortgage Bonds,  the Bond Collateral  Agreement,  the Supplemental
        Indentures (upon effectiveness thereof), the Security Agreement and such
        other documents executed and delivered in connection with the attachment
        and perfection of the  Collateral  Agent's  security  interest and liens
        arising  thereunder,   including,   without  limitation,  UCC  financing
        statements filed in connection therewith.

               "Commitment" shall mean, as to any Lender, the obligation of such
        Lender  to make a Loan to the  Borrower  in a  principal  amount  not to
        exceed the




                                       4




        amount  set  forth  opposite  such  Lender's  name on  Schedule  I.  The
        aggregate amount of the Commitments is $390,000,000.

               "Commitment Percentage" shall mean, as to any Lender at any time,
        the percentage  which such Lender's  Commitment then  constitutes of the
        aggregate  Commitments  (or,  at any time after the  Closing  Date,  the
        percentage  which the aggregate  principal amount of such Lender's Loans
        then  outstanding  constitutes of the aggregate  principal amount of the
        Loans then outstanding).
               "Commonly Controlled Entity" shall mean an entity, whether or not
        incorporated, which is under common control with the Borrower and/or any
        Subsidiary within the meaning of Section 4001(a)(14) of ERISA or is part
        of a group which  includes the Borrower and which is treated as a single
        employer under Section 414 of the Code.

               "Compliance  Certificate" shall have the meaning ascribed thereto
        in Section 5.2(b).

               "Consolidated Group" shall mean the Borrower and its Consolidated
        Subsidiaries.

               "Consolidated  Recourse  Interest  Expense"  shall mean,  for any
        period,  the aggregate  amount of interest  expense of the  Consolidated
        Group minus, to the extent included therein, (i) the aggregate amount of
        interest accrued on Non-Recourse Debt, (ii) non-cash charges, determined
        on a consolidated  basis in accordance with GAAP and (iii) payments made
        in  the  form  of  dividends  under  existing   mandatorily   redeemable
        preference  securities of any trust which is a Subsidiary  (or under any
        refinancing thereof on substantially similar terms).

               "Consolidated Subsidiary" shall mean, at any time, any Subsidiary
        or other Person the accounts of which are consolidated with the Borrower
        in its consolidated  financial statements as of such time; provided that
        in any event the term  "Consolidated  Subsidiary"  shall not include any
        Excluded Subsidiary.

               "Contractual  Obligation"  shall mean as to the  Borrower  or any
        Subsidiary,  any provision of any security issued by the Borrower or any
        Subsidiary or of any agreement, instrument or other undertaking to which
        the Borrower or any  Subsidiary  is a party or by which it or any of its
        property is bound.

               "Cornerstone" shall mean, collectively, Cornerstone GP, Inc., Syn
        Inc.  and  CornerStone   Propane  Partners  L.P.  and  their  respective
        Subsidiaries.

               "CSFB" shall mean Credit Suisse First Boston.

               "Debt for Borrowed  Money" shall mean, as to any Person,  without
        duplication,  (a) all obligations of such Person for borrowed money, (b)
        all obligations of such Person evidenced by bonds, debentures,  notes or
        similar instruments, (c) all Financing Lease obligations of such Person,
        and (d) all




                                       5




        obligations  of  such  Person  under  synthetic  leases,  tax  retention
        operating  leases,  off-balance  sheet loans or other  off-balance sheet
        financing products that, for tax purposes,  are considered  indebtedness
        for borrowed money of the lessee but are classified as operating  leases
        under GAAP.

               "Default" shall mean any of the events  specified in Section 7.1,
        whether or not any  requirement  for the giving of notice,  the lapse of
        time, or both, or any other condition, has been satisfied.

               "Designated  Agents" shall have the meaning  described thereto in
        the Syndication Letter.

               "Dollars"  and "$" shall mean  dollars in lawful  currency of the
        United States of America.

               "Domestic  Lending Office" shall mean,  initially,  the office of
        each  Lender  designated  as such in  Schedule  I (or the  office  of an
        Assignee designated pursuant to an Assignment and Assumption Agreement),
        and thereafter, such other office of such Lender, if any, which shall be
        making or  maintaining  Alternate  Base Rate Loans as may be  designated
        from time to time by notice  from such  Lender to the  Borrower  and the
        Administrative Agent.

               "Environmental  Laws"  shall mean any and all  foreign,  Federal,
        state, local or municipal laws, rules,  orders,  regulations,  statutes,
        ordinances, codes, decrees, judgments, permits, licenses,  registrations
        or authorizations or requirements of any Governmental Authority or other
        Requirements of Law (including  common law)  regulating,  relating to or
        imposing  liability or standards  of conduct  concerning  the health and
        safety of humans and other  living  organisms as it relates to exposures
        to Materials of Environmental  Concern,  protection of natural resources
        or the environment, including the manufacture, distribution in commerce,
        and use of, or Release to the environment of, Materials of Environmental
        Concern, as now or may at any time hereafter be in effect.

               "Equity Issuance" shall mean the issuance of any Capital Stock by
        the Borrower other than (i) Capital Stock issued in the ordinary  course
        of business in connection with director or employee stock purchase plans
        and   arrangements   and  other   director  or   employee   compensation
        arrangements  and (ii) Capital  Stock  issued in the ordinary  course of
        business  under  any  dividend  reinvestment  and  stock  purchase  plan
        maintained by the Borrower.

               "ERISA" shall mean the Employee Retirement Income Security Act of
        1974, as amended from time to time.

               "Eurodollar Base Rate" shall mean, with respect to any Eurodollar
        Loan for any  Interest  Period,  the rate per  annum  determined  by the
        Administrative  Agent at  approximately  11:00 a.m. (London time) on the
        date which is two Business  Days prior to the beginning of such Interest
        Period  by  reference  to  the  British  Bankers'  Association  Interest
        Settlement  Rates for  deposits  in Dollars (as




                                       6




        set forth by any service selected by the Administrative  Agent which has
        been  nominated by the British  Bankers'  Association  as an  authorized
        information  vendor for the  purpose  of  displaying  such  rates) for a
        period equal to such Interest Period;  provided that, to the extent that
        an  interest  rate  is  not  ascertainable  pursuant  to  the  foregoing
        provisions  of this  definition,  the  "Eurodollar  Rate"  shall  be the
        interest rate per annum determined by the Administrative Agent to be the
        average of the rates per annum at which  deposits in Dollars are offered
        for such Interest Period to major banks in the London  interbank  market
        in London,  England by the Administrative  Agent at approximately  11:00
        a.m.  (London  time) on the date which is two Business Days prior to the
        beginning  of  such  Interest  Period;  provided,  further,  that if the
        Eurodollar  Base Rate  determined as provided  above with respect to any
        Loan for any Interest  Period  would be less than 3.00% per annum,  then
        the  "Eurodollar  Base Rate" with respect to such Loan for such Interest
        Period shall be deemed to be 3.00% per annum. Each  determination by the
        Administrative  Agent  pursuant to this  definition  shall be conclusive
        absent manifest error.

               "Eurodollar   Loans"  shall  mean  Loans  the  rate  of  interest
        applicable to which is based upon the Eurodollar Rate.

               "Eurodollar  Office"  shall mean,  initially,  the office of each
        Lender  designated  as such in  Schedule I (or the office of an Assignee
        designated  pursuant to an Assignment  and  Assumption  Agreement),  and
        thereafter,  such other  office of such Lender,  if any,  which shall be
        making or maintaining Eurodollar Loans as may be designated from time to
        time by notice from such Lender to the Borrower  and the  Administrative
        Agent.

               "Eurodollar Rate" shall mean with respect to each day during each
        Interest  Period  pertaining  to a  Eurodollar  Loan,  a rate per  annum
        determined for such day in accordance with the following formula:

                              Eurodollar Base Rate
                     --------------------------------------
                     1.00 - Eurodollar Reserve Requirements

               "Eurodollar  Reserve  Requirements"  shall  mean,  for any day as
        applied to a Eurodollar Loan, the aggregate (without duplication) of the
        rates (expressed as a decimal) of reserve requirements in effect on such
        day (including,  without limitation,  basic, supplemental,  marginal and
        emergency  reserves)  under any regulations of the Board of Governors of
        the  Federal  Reserve  System  or other  Governmental  Authority  having
        jurisdiction  with respect  thereto)  dealing with reserve  requirements
        prescribed  for   eurocurrency   funding   (currently   referred  to  as
        "Eurocurrency  Liabilities" in Regulation D of such Board) maintained by
        a member bank of such System.

               "Eurodollar  Tranche"  shall  mean all  Loans  which  consist  of
        Eurodollar  Loans  incurred  on the Closing  Date (or which  result from
        continuations or




                                       7




        conversions  on a given date after the  Closing  Date) and have the same
        Interest Period.

               "Event of  Default"  shall  mean any of the events  specified  in
        Section 7.1; provided that any requirement for the giving of notice, the
        lapse of time, or both, or any other condition, has been satisfied.

               "Excluded  Subsidiaries"  shall  mean,  collectively,  Blue  Dot,
        Cornerstone and Expanets.

               "Existing  Credit  Agreement"  shall  mean  that  certain  Credit
        Agreement  dated as of January 14, 2002 among the Borrower,  the lenders
        party thereto and CSFB as  administrative  agent, as amended to the date
        hereof.

               "Expanets" shall mean,  collectively,  Expanets, Inc., a Delaware
        corporation and an indirect wholly-owned subsidiary of the Borrower, and
        its Subsidiaries.

               "FDIC" shall mean the Federal  Deposit  Insurance  Corporation or
        any successor thereto.

               "Federal Funds Rate" shall mean for any particular date, the rate
        per annum (rounded  upwards,  if necessary,  to the nearest 1/100 of 1%)
        equal to the weighted  average of the rates on overnight  Federal  funds
        transactions  with  members of the Federal  Reserve  System  arranged by
        Federal funds  brokers on such day, as published by the Federal  Reserve
        Bank of New York on the Business Day next succeeding such day;  provided
        that (a) if such day is not a Business  Day, the Federal  Funds Rate for
        such day shall be such rate on such  transactions  on the next preceding
        Business Day as so published on the next  succeeding  Business  Day, and
        (b) if no such rate is so  published  on such next  succeeding  Business
        Day,  the  Federal  Funds  Rate for such day shall be the  average  rate
        charged to the Administrative Agent (in its individual capacity) on such
        day on such transactions as determined by the Administrative Agent.

               "FERC" shall mean the Federal Energy Regulatory Commission.

               "Financing  Lease"  shall  mean any  lease of  property,  real or
        personal, the obligations of the lessee in respect of which are required
        in  accordance  with GAAP to be  capitalized  on a balance  sheet of the
        lessee.

               "First  Mortgage  Approvals"  shall  have  the  meaning  ascribed
        thereto in Section 3.4.

               "First  Mortgage  Bonds"  shall  mean the  first  mortgage  bonds
        issued, pursuant to the Indentures, to and registered in the name of the
        Collateral Agent.

               "Funded  Debt" shall mean, as of any date of  determination,  the
        sum of all  Indebtedness  of the Borrower  and each of its  Consolidated
        Subsidiaries  (without




                                       8




        duplication) other than (i) Indebtedness of the type described in clause
        (e) of the definition thereof and (ii) Non-Recourse Debt.

               "Funding  Date"  shall  mean  the date on  which  the  conditions
        precedent  set forth in Section 4.2 shall be  satisfied or waived by the
        Required  Lenders  or  such  later  date  as  may be  designated  by the
        Administrative  Agent in its sole  judgment  but in any  event not later
        than the Cash Collateral Release Date.

               "GAAP" shall mean generally accepted accounting principles in the
        United States of America as in effect from time to time  consistent with
        those utilized in preparing the audited financial statements referred to
        in Section 3.1; provided that in the event that any change in accounting
        principles  required  by  the  promulgation  of  any  rule,  regulation,
        pronouncement or opinion by the Financial  Accounting Standards Board of
        the American  Institute of Certified  Public  Accountants  (or successor
        thereto or any agency with similar functions) results in a change in the
        calculation of any of the financial  covenants  hereunder,  the Required
        Lenders and the Borrower will in good faith enter into  negotiations  in
        order to reevaluate  such  financial  covenants in light of such change;
        and provided, further, that this provision shall not operate as a waiver
        of any right,  remedy,  power or privilege available to any Lender under
        any provision of any Loan Document or pursuant to any applicable law.

               "Governmental  Authority"  shall  mean  any  national  government
        (United  States or foreign),  any state or other  political  subdivision
        thereof,  any  entity  exercising  executive,   legislative,   judicial,
        regulatory  or  administrative  functions of or pertaining to government
        and any agency,  authority,  instrumentality,  or regulatory body of any
        thereof.

               "Granting  Lender"  shall have the  meaning  ascribed  thereto in
        Section 9.6(f).

               "Guarantee   Obligation"   shall  mean  as  to  any  Person  (the
        "guaranteeing  person"),  any  obligation  of  the  guaranteeing  person
        (including, without limitation, any reimbursement,  counter-indemnity or
        similar   obligation),   guaranteeing  or  in  effect  guaranteeing  any
        Indebtedness,  lease, dividend or other similar obligation (the "primary
        obligation")  of any other third Person (the  "primary  obligor") in any
        manner, whether directly or indirectly,  including,  without limitation,
        any obligation of the  guaranteeing  person,  whether or not contingent,
        (i) to purchase any such primary obligation or any property constituting
        direct or indirect  security  therefor,  (ii) to advance or supply funds
        (x) for the purchase or payment of any such primary obligation or (y) to
        maintain  working  capital or equity  capital of the primary  obligor or
        otherwise  to  maintain  the net worth,  liquidity  or  solvency  of the
        primary  obligor,  (iii) to purchase  property,  securities  or services
        primarily  for the  purpose of  assuring  the owner of any such  primary
        obligation of the ability of the primary obligor to make payment of such
        primary  obligation  or (iv)  otherwise  to assure or hold  harmless the
        owner of any such primary  obligation  against loss in respect  thereof;
        provided  that  the  term   Guarantee   Obligation   shall  not  include




                                       9




        endorsements  of  instruments  for deposit or collection in the ordinary
        course of  business.  The  amount  of any  Guarantee  Obligation  of any
        guaranteeing  person as of any date of determination  shall be deemed to
        be the lower of (a) an amount equal to the stated or determinable amount
        of the primary obligation in respect of which such Guarantee  Obligation
        is made and (b) the maximum  amount for which such  guaranteeing  person
        may be liable  pursuant to the terms of the  instrument  embodying  such
        Guarantee  Obligation,  unless such primary  obligation  and the maximum
        amount for which such  guaranteeing  person may be liable are not stated
        or determinable,  in which case the amount of such Guarantee  Obligation
        shall  be such  guaranteeing  person's  maximum  reasonably  anticipated
        liability  in respect  thereof as  determined  by the  Borrower  in good
        faith.

               "Hedging  Agreements" shall mean (a) any interest rate protection
        agreement,  interest rate future,  interest  rate option,  interest rate
        swap,  interest  rate cap or other  interest  rate hedge or  arrangement
        under which the Borrower is a party or a  beneficiary  and (b) any other
        agreement  or  arrangement  designed to limit or  eliminate  the risk or
        exposure of the Borrower to fluctuations in currency exchange rates.

               "Indebtedness"  of any  Person at any date  shall  mean,  without
        duplication,  (a)  Debt  for  Borrowed  Money  of such  Person,  (b) all
        indebtedness of such Person for the deferred  purchase price of property
        or  services  (other  than  current  trade  liabilities  incurred in the
        ordinary  course of business and payable in  accordance  with  customary
        practices), (c) all outstanding reimbursement obligations of such Person
        in respect of  outstanding  letters of credit,  acceptances  and similar
        obligations  issued or created for the account of such  Person,  (d) all
        liabilities  secured by any Lien on any  property  owned by such  Person
        even though such Person has not assumed or otherwise  become  liable for
        the payment thereof,  (e) liabilities  arising under Hedging  Agreements
        (other than  interest  rate caps) of such  Person and (f) all  Guarantee
        Obligations of such Person.

               "Indentures"  shall mean  collectively the Montana First Mortgage
        Indenture and the South Dakota First Mortgage Indenture.

               "Insolvency"  shall mean with respect to any Multiemployer  Plan,
        the condition that such plan is insolvent  within the meaning of Section
        4245 of ERISA.

               "insolvent" shall mean pertaining to a condition of Insolvency.

               "Intellectual  Property"  shall  have the  meaning  set  ascribed
        thereto in Section 3.10.

               "Interest  Payment Date" shall mean (a) as to any Alternate  Base
        Rate Loan,  the last  Business Day of each March,  June,  September  and
        December  to  occur  while  such  Loan  is  outstanding,  (b)  as to any
        Eurodollar  Loan having an Interest  Period of three months or less, the
        last day of such  Interest  Period,  and (c)



                                       10




        as to any  Eurodollar  Loan having an Interest  Period longer than three
        months,  each day which is three months,  or a whole  multiple  thereof,
        after  the first day of such  Interest  Period  and the last day of such
        Interest Period.

               "Interest Period" with respect to any Eurodollar Loan shall mean:

               (a)  initially,   the  period  commencing  on  the  borrowing  or
        conversion  date,  as the case may be, with  respect to such  Eurodollar
        Loan and ending one, two, three or six months thereafter, as selected by
        the  Borrower  in its Notice of  Borrowing  or Notice of  Interest  Rate
        Conversion, as the case may be, given with respect thereto; and

               (b)  thereafter,  each period  commencing  on the last day of the
        next preceding  Interest  Period  applicable to such Eurodollar Loan and
        ending  one,  two,  three or six months  thereafter,  as selected by the
        Borrower by irrevocable notice to the Administrative Agent not less than
        three  Business Days prior to the last day of the then current  Interest
        Period with respect thereto;

        provided that, the foregoing provisions relating to Interest Periods are
        subject to the following:

                      (i) if any Interest Period pertaining to a Eurodollar Loan
               would  otherwise  end on a day that is not a Business  Day,  such
               Interest Period shall be extended to the next succeeding Business
               Day (and,  with  respect to payments of  principal  and  interest
               thereon, shall be payable at the then applicable rate during such
               extension)  unless the result of such extension would be to carry
               such Interest  Period into another  calendar month in which event
               such  Interest  Period  shall  end on the  immediately  preceding
               Business Day;

                      (ii) no  Interest  Period  shall be  selected  which would
               extend beyond the Maturity Date;

                      (iv) any Interest  Period  pertaining to a Eurodollar Loan
               that begins on the last Business Day of a calendar month (or on a
               day for which there is no  numerically  corresponding  day in the
               calendar  month at the end of such Interest  Period) shall end on
               the last Business Day of a calendar month; and

                      (v) the Borrower shall select  Interest  Periods so as not
               to require a payment or prepayment of any Eurodollar  Loan during
               an Interest Period for such Loan.

               "Investment"  shall have the meaning  ascribed thereto in Section
        6.8.

               "ISO" shall mean any  "Independent  System  Operator"  or similar
        entity  approved  by FERC to manage  transmission  systems  owned by the
        Borrower.



                                       11




               "Lender" shall have the meaning  ascribed  thereto in the heading
        hereto.

               "Lien"   shall   mean  any   mortgage,   pledge,   hypothecation,
        assignment, deposit arrangement, encumbrance, lien (statutory or other),
        charge or other security  interest or any preference,  priority or other
        security  agreement or  preferential  arrangement  of any kind or nature
        whatsoever (including, without limitation, any conditional sale or other
        title retention  agreement and any Financing Lease having  substantially
        the same  economic  effect as any of the foregoing and the filing of any
        financing  statement under the Uniform Commercial Code or comparable law
        of any  jurisdiction,  other than any such filing in connection with any
        true lease or operating lease).

               "Loan Documents"  shall mean  collectively,  this Agreement,  the
        Collateral  Documents,  the Notes, the Syndication Letter and each other
        agreement,  instrument or certificate issued,  executed and delivered to
        the Administrative Agent, the Collateral Agent, or the Lenders hereunder
        or  thereunder  or pursuant  hereto or thereto (in each case as the same
        may be amended,  restated,  supplemented,  extended, renewed or replaced
        from time to time), and "Loan Document" means any one of them.

               "Loans"  shall mean the loans made by the Lenders to the Borrower
        pursuant to this Agreement.

               "Mandatory  Redeemable  Stock"  shall mean,  with  respect to any
        Person,  any share of such Person's Capital Stock, to the extent that it
        is (a)  redeemable,  payable or required to be  purchased  or  otherwise
        retired or  extinguished,  or convertible into any Indebtedness or other
        liability,  obligation, covenant or duty of or binding upon, or any term
        or condition to be observed by or binding upon such Person or any of its
        assets,  (i) at a fixed or determinable  date, whether by operation of a
        sinking  fund or  otherwise,  (ii) at the option of any other  Person or
        (iii) upon the  occurrence  of a condition not solely within the control
        of such Person such as a redemption required to be made utilizing future
        earnings,  or (b) convertible  into Capital Stock which has the features
        set forth in clause (a).

               "Material Adverse Effect" shall mean a material adverse effect on
        (a)  the  business,   operations,   property,  condition  (financial  or
        otherwise)   or  prospects   of  the   Borrower  and  its   Consolidated
        Subsidiaries  (taken as a whole),  (b) the validity or enforceability of
        this Agreement,  any of the Notes,  any of the First Mortgage Bonds, any
        of the other  Loan  Documents  or  either  Indenture,  or the  rights or
        remedies of the  Administrative  Agent,  the  Collateral  Agent,  or the
        Lenders hereunder or thereunder (or the trustee under an Indenture), (c)
        the property (taken as a whole) subject to the Lien of an Indenture,  or
        (d)  the  perfection,  priority  or  enforceability  of the  Lien of the
        Montana  First  Mortgage  Indenture,  the South Dakota  Indenture or any
        other Collateral Document.

               "Material   Subsidiary"   shall   mean,   as  at  any   time   of
        determination,  each present or future  Subsidiary of the Borrower other
        than any one or more



                                       12




        Subsidiaries  which,  in  the  aggregate,  as at the  end of the  fiscal
        quarter immediately  preceding such time of determination,  shall have a
        net worth  (calculated as the  stockholder's  equity of such  Subsidiary
        disregarding  any liabilities of such Subsidiary to an Affiliate)  equal
        to or  less  than  10%  of  the  Net  Worth  of  the  Borrower  and  its
        Consolidated  Subsidiaries as at the end of such fiscal quarter, and net
        income  equal to or less than 10% of the Net Income of the  Borrower and
        its Consolidated  Subsidiaries for the four fiscal quarter period ending
        at the end of such fiscal  quarter,  as determined  in  accordance  with
        GAAP.

               "Materials of  Environmental  Concern" shall mean any gasoline or
        petroleum  (including  crude oil or any  fraction  thereof) or petroleum
        products  or any  other  pollutant,  contaminant,  hazardous  substance,
        hazardous waste, special waste, toxic substance,  radioactive  material,
        or other compound, element, material or substance in any form whatsoever
        (including products) regulated,  restricted or addressed by or under any
        Environmental   Law,   including,    without    limitation,    asbestos,
        polychlorinated biphenyls and urea-formaldehyde insulation.

               "Maturity Date" shall mean December 1, 2006.

               "Montana  First Mortgage  Indenture"  shall mean the Mortgage and
        Deed of Trust dated  October 1, 1945 from the Borrower (as  successor to
        Montana Power) to the trustee named therein, as supplemented and amended
        to the date hereof.

               "Montana  Power"  shall  mean The  Montana  Power  LLC, a Montana
        limited  liability  company,  acquired by the  Borrower on February  15,
        2002.

               "Montana Utility Business" shall mean the regulated  electric and
        natural gas transmission  and  distribution  assets and businesses owned
        and  operated  by the  Borrower  in the State of  Montana  or  otherwise
        subject to the Lien of the Montana First Mortgage Indenture.

               "Montana  Utility Business EBITDA" shall mean, for any period for
        the Montana Utility Business, the sum of (i) the operating income of the
        Montana Utility Business for such period plus,  without  duplication and
        to the extent reflected as a charge in the statement of operating income
        of the Montana Utility Business for such period,  (ii)  depreciation and
        amortization,  in  each  case  on a  consolidated  basis  determined  in
        accordance  with GAAP;  provided,  however,  with  respect to any fiscal
        quarter ended on or prior to March 31, 2002, the Utility Business EBITDA
        shall include the utility business and operations of Montana Power.

               "Moody's" shall mean Moody's Investors Service, Inc.

               "Multiemployer  Plan" shall mean a plan which is a "multiemployer
        plan" as defined in Section 3(37) or 4001(a)(3) of ERISA.


                                       13




               "Net Cash  Proceeds"  shall mean,  with respect to any  Reduction
        Event,  an amount  equal to the cash  proceeds  received by the Borrower
        from or in respect of such Reduction Event  (including any cash received
        by way of deferred payment pursuant to a promissory note,  receivable or
        otherwise,  but only as and  when  received),  less  (a) any  investment
        banking and underwriting fees and any other fees and expenses reasonably
        incurred by such Person in respect of such Reduction  Event,  and (b) if
        such Reduction  Event is a disposition of assets,  (i) the amount of any
        Debt for Borrowed  Money  secured by a Lien on any asset  disposed of in
        such  Reduction  Event to the extent  such Lien is senior to the Lien of
        the applicable  Indenture and discharged  from the proceeds  thereof and
        (ii)  any  taxes  actually  paid or to be  payable  by such  Person  (as
        estimated by a senior  financial or accounting  officer of the Borrower,
        giving effect to the overall tax position of the Borrower) in respect of
        such Reduction Event; provided that the term Net Cash Proceeds shall not
        include  any cash  proceeds to the extent  such cash  proceeds  are (and
        remain) subject to the Lien of an Indenture.

               "Net Income" for any period  shall mean,  net income (or deficit)
        of the  Borrower  and its  Consolidated  Subsidiaries  for  such  period
        determined on a consolidated basis in accordance with GAAP.

               "Net Worth" shall mean,  (a) as of December 31, 2002, (i) the sum
        of  shareholders'  equity and  preferred  stock  (including  mandatorily
        redeemable  preferred stock of subsidiary trusts),  preference stock and
        preferred  securities  of the Borrower and its  subsidiaries  (including
        Excluded   Subsidiaries  but  excluding   discontinued   operations)  on
        September  30, 2002 plus any gain in (or minus any loss in) (ii) the sum
        of  shareholders'  equity and  preferred  stock  (including  mandatorily
        redeemable  preferred stock of subsidiary trusts),  preference stock and
        preferred  securities of the Borrower and the Consolidated  Subsidiaries
        on December 31, 2002 (but without  duplication of equity issuances after
        September  30, 2002 but prior to the date hereof)  from the  immediately
        preceding  fiscal quarter and (b) on the last day of each fiscal quarter
        thereafter,  (i) the Net Worth as calculated as of the preceding  fiscal
        quarter  plus  any  gain in (or  minus  any  loss  in)  (ii)  the sum of
        shareholders'   equity  and  preferred  stock   (including   mandatorily
        redeemable  preferred stock of subsidiary trusts),  preference stock and
        preferred  securities of the Borrower and the Consolidated  Subsidiaries
        on the last day of such fiscal  quarter from the  immediately  preceding
        fiscal  quarter.  The sum of  shareholders'  equity and preferred  stock
        (including mandatorily redeemable preferred stock of subsidiary trusts),
        preference  stock  and  preferred  securities  of the  Borrower  and its
        subsidiaries (including Excluded Subsidiaries) on September 30, 2002 was
        $770,000,000.  For the  avoidance  of doubt,  calculations  of Net Worth
        after the date  hereof  shall be without  giving  effect to net gains or
        losses in the Excluded Subsidiaries.

               "1940  Mortgage" shall have the meaning  ascribed  thereto in the
        South Dakota First Mortgage Indenture.




                                       14




               "Non-Excluded  Taxes" shall have the meaning  ascribed thereto in
        Section 2.15(a).

               "Non-Recourse  Debt" shall mean any  Indebtedness as to which the
        Borrower has no direct or indirect liability whether as primary obligor,
        guarantor,  surety, provider of collateral security or through any other
        right or arrangement of any nature (including any election by the holder
        of such indebtedness)  providing direct or indirect assurance of payment
        or performance  of any such  obligations in whole or in part (other than
        direct or indirect liability which by its terms may be payable solely in
        Capital Stock (other than Mandatory Redeemable Stock) of the Borrower).

               "NorthWestern  Energy"  shall  mean the  regulated  electric  and
        natural gas transmission  and  distribution  assets and businesses owned
        and  operated by the Borrower  (formerly  known as  NorthWestern  Public
        Service and including,  without  limitation,  the regulated electric and
        natural gas transmission and distribution  assets and business  formerly
        owned and operated by Montana  Power),  historically  reported under the
        headings  titled  "Electric" and "Natural Gas" on the SEC Reports of the
        Borrower filed annually with the SEC.

               "Note" shall mean, as applicable, a Term Note or a QFL Note.

               "Notice of  Borrowing"  shall mean a notice given by the Borrower
        pursuant to Section 2.3(a).

               "Notice of  Interest  Rate  Conversion"  shall  have the  meaning
        ascribed thereto in Section 2.7.

               "Obligations"  shall mean the unpaid principal of and interest on
        (including, without limitation,  interest accruing after the maturity of
        the Loans and  interest  accruing  after the filing of any  petition  in
        bankruptcy,  or the  commencement of any insolvency,  reorganization  or
        like  proceeding,  relating  to  the  Borrower  or  any  Subsidiary,  as
        applicable,  whether  or not a claim for  post-filing  or  post-petition
        interest is allowed in such  proceeding  and whether the  Administrative
        Agent,  for the benefit of the Lenders,  is oversecured or  undersecured
        with  respect  to such  Loans) the Notes and all other  obligations  and
        liabilities of the Borrower to the Administrative  Agent, the Collateral
        Agent  and  the  Lenders,  whether  direct  or  indirect,   absolute  or
        contingent,  due or to become due, now  existing or hereafter  incurred,
        which may arise under,  out of, or in connection  with,  this Agreement,
        the  Notes,  the  other  Loan  Documents  or any  other  document  made,
        delivered  or given in  connection  therewith  or  herewith,  whether on
        account of  principal,  interest,  fees,  indemnities,  costs,  expenses
        (including, without limitation, all fees and disbursements of counsel to
        the  Administrative  Agent, the Collateral Agent or the Lenders that are
        required  to be paid  by the  Borrower  pursuant  to the  terms  of this
        Agreement or any other Loan Document) or otherwise.




                                       15




               "Participant"  shall have the meaning ascribed thereto in Section
        9.6(b).

               "PBGC"  shall  mean  the  Pension  Benefit  Guaranty  Corporation
        established pursuant to Subtitle A of Title IV of ERISA or any successor
        thereto.

               "Pension Plan" shall mean any single-employer plan, as defined in
        Section 4001(a)(15) of ERISA, which the Borrower,  any Subsidiary or any
        Commonly Controlled Entity maintains, administers,  contributes to or is
        required to contribute  to, or under which the Borrower,  any Subsidiary
        or any Commonly Controlled Entity has any liability.

               "Permitted Liens" shall mean

               (a)    Liens for  taxes,  assessments,  governmental  charges  or
                      levies  not yet due or which are being  contested  in good
                      faith by appropriate  proceedings;  provided that adequate
                      reserves with respect  thereto are maintained on the books
                      of the Borrower or its Consolidated  Subsidiaries,  as the
                      case may be, in conformity with GAAP;

               (b)    Landlord  liens  for  rent  not yet due  and  payable  and
                      statutory Liens of carriers', warehousemen's,  mechanics',
                      materialmen's,  repairmen's or other similar nonconsensual
                      Liens  imposed by law  arising in the  ordinary  course of
                      business securing  obligations which are not overdue for a
                      period of more  than 60 days or which are being  contested
                      in good faith by appropriate proceedings;

               (c)    pledges  or   deposits   in   connection   with   workers'
                      compensation,  unemployment  insurance  and  other  social
                      security legislation;

               (d)    deposits  securing  liability to insurance  carriers under
                      insurance or self- insurance arrangements, and deposits to
                      secure true operating leases in the ordinary course;

               (e)    easements,  rights-of-way,  restrictions and other similar
                      encumbrances  incurred in the ordinary  course of business
                      which,  in the  aggregate,  do not in any case  materially
                      detract from the value of the property  subject thereto or
                      materially  interfere  with the  ordinary  conduct  of the
                      business of the Borrower;

               (f)    any attachment or judgment Lien not  constituting an Event
                      of Default under Section 7.1(h);

               (g)    Liens   solely  on  assets  of  a   Subsidiary   incurring
                      Indebtedness, which Liens secure such Indebtedness;

               (h)    the  Lien of each  Indenture,  as  such  Indenture  may be
                      amended or  supplemented  from time to time in  accordance
                      with the  terms  hereof,  securing  first  mortgage  bonds
                      permitted to be outstanding pursuant to Section 6.10(e) or
                      (f);




                                       16




               (i)    Liens on accounts receivables or inventory of the Borrower
                      (provided  such  assets  are not  subject  to the  Lien of
                      either Indenture)  securing  Indebtedness  permitted to be
                      outstanding pursuant to Section 6.10(g);

               (j)    Liens on assets of the Borrower not subject to the Lien of
                      either  Indenture  securing  Indebtedness  permitted to be
                      outstanding pursuant to Section 6.10(h);

               (k)    any  Lien  vested  in  any  licensor  or   permitter   for
                      obligations  or acts to be performed,  the  performance of
                      which  obligations  or acts is required  under licenses or
                      permits, so long as the performance of such obligations or
                      acts is not delinquent or is being contested in good faith
                      and by appropriate proceedings;

               (l)    any controls,  restrictions,  obligations, duties or other
                      burdens imposed by any federal,  state, municipal or other
                      law,  or  by  any  rule,   regulation   or  order  of  any
                      Governmental Authority,  upon any property of the Borrower
                      or the  operation or use thereof or upon the Borrower with
                      respect to any of its  property  or the  operation  or use
                      thereof or with respect to any franchise,  grant, license,
                      permit  or  public  purpose  requirement,  or  any  rights
                      reserved  to  or  otherwise  vested  in  any  Governmental
                      Authority  to  impose  any  such  controls,  restrictions,
                      obligations, duties or other burdens;

               (m)    any right  which any  Governmental  Authority  may have by
                      virtue of any franchise,  license,  contract or statute to
                      purchase,  or  designate a purchaser  of or order the sale
                      of, any property of the  Borrower  upon payment of cash or
                      reasonable  compensation  therefor  or  to  terminate  any
                      franchise,  license  or other  rights or to  regulate  the
                      property and business of the Borrower;

               (n)    party-wall   agreements  and  agreements,   in  each  case
                      existing on the date hereof, for and obligations  relating
                      to the joint or common use of property owned solely by the
                      Borrower  or owned by the  Borrower  in common or  jointly
                      with one or more parties;

               (o)    liens  existing on the date hereof  securing  indebtedness
                      incurred  by a  Person,  other  than  the  Borrower  which
                      indebtedness  has been neither  assumed nor  guaranteed by
                      the Borrower nor on which it  customarily  pays  interest,
                      existing on property which the Borrower owns jointly or in
                      common  with such  Person or such  Person and  others,  if
                      there is a bar against partition of such property which




                                       17




               (p)    would  preclude  the sale of such  property  by such other
                      Person or the holder of such lien  without  the consent of
                      the Borrower;  Liens existing on the date hereof  securing
                      Debt for  Money  Borrowed  as set  forth in  Schedule  6.4
                      hereto; and

               (q)    other Liens not securing Indebtedness existing on the date
                      hereof.

               "Person"  shall  mean an  individual,  partnership,  corporation,
        limited liability company,  business trust, joint stock company,  trust,
        unincorporated association,  joint venture,  Governmental Authority, ISO
        or other entity of whatever nature.

               "Plan" shall mean at a particular time, any employee benefit plan
        which is defined  in  Section  3(2) of ERISA and in respect of which the
        Borrower or any  Subsidiary is, an "employer" as defined in Section 3(5)
        of ERISA.

               "Properties"  shall have the meaning  ascribed thereto in Section
        3.17(a).

               "QFL Note"  shall have the  meaning  ascribed  thereto in Section
        2.15.

               "Qualified  Foreign  Lender"  shall  have  the  meaning  ascribed
        thereto in Section 2.15.

               "Reduction  Event"  shall  mean any Asset  Disposition  or Equity
        Issuance.

               "Register"  shall have the  meaning  ascribed  thereto in Section
        9.6(d).

               "Regulation  D, T, U or X" shall  mean  Regulation  D, T, U or X,
        respectively, of the Board of Governors of the Federal Reserve System as
        in effect from time to time, or any successor regulation.

               "Release"  shall mean any release,  pumping,  pouring,  emptying,
        injecting, escaping, leaching, migrating, dumping, seepage, spill, leak,
        flow, discharge, disposal or emission.

               "Reorganization"  shall mean with  respect  to any  Multiemployer
        Plan,  the  condition  that such plan is in  reorganization  within  the
        meaning of Section 4241 of ERISA.

               "Replaced  Note"  shall  have the  meaning  ascribed  thereto  in
        Section 2.15.

               "Replacement  Lender" shall have the meaning  ascribed thereto in
        Section 2.18.

               "Reportable  Event"  shall  mean any of the  events  set forth in
        Section  4043(c) of ERISA  other than those  events for which the notice
        requirement has been waived under applicable regulations.



                                       18




               "Required  Lenders"  shall  mean,  at any  time,  Lenders  having
        Commitments (or after the Funding Date, Loans)  representing 51% or more
        of the aggregate of all Commitments  (or after the Funding Date,  Loans)
        outstanding at such time.

               "Requirement  of Law" as to any Person shall mean the articles of
        organization and by-laws or other  organizational or governing documents
        of such Person, and any law, treaty, rule or regulation or determination
        of an arbitrator or a court or other Governmental  Authority (including,
        without  limitation,  the Public Utility Holding Company Act of 1935, as
        amended,  any of the foregoing relating to employee health and safety or
        public utilities and any Environmental Law), in each case, applicable to
        or  binding  upon such  Person or any of its  property  or to which such
        Person or any of its property is subject.

               "Responsible  Officer" shall mean, with respect to a Person,  the
        chairman of the board of directors,  the chief executive  officer or the
        president  of such Person or, with  respect to  financial  matters,  the
        chief  financial  officer of such Person,  or any other  officer of such
        Person designated as a Responsible Officer by any of the foregoing.

               "Restricted  Payment" shall have the meaning  ascribed thereto in
        Section 6.9.

               "SEC" shall mean the Securities and Exchange Commission.

               "SEC  Reports"  shall mean the reports filed by the Borrower with
        the SEC on Form 10-K, Form 10-Q or Form 8-K or any successor Form.

               "Secured  Parties"  shall  mean  the  Administrative  Agent,  the
        Collateral Agent and the Lenders.

               "Security  Agreement" shall mean the security  agreement  between
        the  Borrower  and the  Collateral  Agent for the benefit of the Secured
        Parties in form and substance  reasonably  satisfactory  to the Borrower
        and the Collateral Agent.

               "South Dakota First  Mortgage  Indenture"  shall mean the General
        Mortgage  Indenture and Deed of Trust dated as of August 1, 1993 between
        the Borrower and The Chase Manhattan  Bank, as trustee,  as supplemented
        and amended to the date hereof.

               "South Dakota Utility Business" shall mean the regulated electric
        and natural gas  transmission  and  distribution  assets and  businesses
        owned and  operated by the  Borrower  in the States of South  Dakota and
        Nebraska  or  otherwise  subject to the Lien of the South  Dakota  First
        Mortgage Indenture.

               "South Dakota Utility Business EBITDA" shall mean, for any period
        for the South  Dakota  Utility  Business,  the sum of (i) the  operating
        income  of the South  Dakota  Utility  Business  for such  period  plus,
        without  duplication  and to the



                                       19




        extent reflected as a charge in the statement of operating income of the
        South Dakota Utility  Business for such period,  (ii)  depreciation  and
        amortization,  in  each  case  on a  consolidated  basis  determined  in
        accordance with GAAP.

               "SPC" shall have the meaning ascribed thereto in Section 9.6(f).

               "Special  Purpose  Subsidiary"  shall  mean a direct or  indirect
        Subsidiary of the  Borrower,  formed solely for the purpose of acquiring
        and owning  certain  assets and  issuing  Indebtedness  which is secured
        solely  by such  assets  (or the  assets  of one or more  other  Special
        Purpose  Subsidiaries)  and as to which  the  Borrower  and  each  other
        Subsidiary (other than any Special Purpose  Subsidiary) has no Guarantee
        Obligation or other  liability or  obligation  to contribute  additional
        equity or for which the Borrower or any other  Subsidiary  (other than a
        Special  Purpose  Subsidiary)  has general  partner  liability  or other
        derivative liability by operation of law or contract.  The term "Special
        Purpose  Subsidiary"  shall also  include any  Subsidiary  whose  assets
        consist solely of equity interests in another Special Purpose Subsidiary
        and, other than having general  partner  liability,  otherwise meets the
        requirements of the preceding sentence.

               "Standard & Poor's" shall mean Standard & Poor's Rating Group,  a
        division of The McGraw-Hill Companies, Inc.

               "Subsidiary"  shall  mean,  as  to  any  Person,  a  corporation,
        company,  partnership  or other entity of which shares of stock or other
        ownership  interests  having  ordinary voting power (other than stock or
        such other ownership  interests  having such power only by reason of the
        occurrence  of a  contingency)  to  elect a  majority  of the  board  of
        directors or other managers of such corporation, company, partnership or
        other  entity  are at the  time  owned,  or the  management  of which is
        otherwise  controlled,  directly  or  indirectly  through  one  or  more
        intermediaries,  or both,  by such Person.  Unless  otherwise  expressly
        stated herein all references to any Subsidiary are to direct or indirect
        subsidiaries  of the  Borrower;  provided  that in no  event  shall  any
        Excluded Subsidiary be deemed a Subsidiary of the Borrower.

               "Supplemental    Indentures"    shall   mean   collectively   the
        supplemental indentures to the Indentures pursuant to which, among other
        things, the First Mortgage Bonds are issued. The Supplemental Indentures
        are sometimes called, as applicable,  the Montana Supplemental Indenture
        and the South Dakota Supplemental Indenture herein.

               "Syndication   Letter"  shall  mean  the  Senior  Secured  Credit
        Facility  Syndication  Letter from CSFB to the  Borrower  dated the date
        hereof.

               "Term Note" shall have the  meaning  ascribed  thereto in Section
        9.6(h).

               "Total  Capital"  shall mean on any date (a) Funded  Debt on such
        date plus (b) Net Worth as of the end of the most recent fiscal quarter.



                                       20




               "Transactions"   shall   mean,   collectively,   (a)   borrowings
        hereunder,  (b) the  authorization,  issuance  and delivery of the First
        Mortgage  Bonds to the  Collateral  Agent,  (c) the granting of security
        interests  pursuant  to the  Collateral  Documents  and  (d)  any  other
        transactions  related  or  entered  into in  connection  with any of the
        foregoing or otherwise in connection with any of the Loan Documents.

               "Transferee"  shall have the meaning  ascribed thereto in Section
        9.6(g).

               "Type" shall mean as to any Loan, its nature as an Alternate Base
        Rate Loan or a Eurodollar Loan, as the context may require.

               "Utility Business" shall mean the utility business and operations
        of the Borrower conducted through NorthWestern Energy.

               "Utility  Business  EBITDA"  shall  mean,  for any period for the
        Utility  Business,  the sum of (i) the  operating  income of the Utility
        Business for such period  plus,  without  duplication  and to the extent
        reflected  as a charge  in the  statement  of  operating  income  of the
        Utility Business for such period, (ii) depreciation and amortization, in
        each case on a consolidated  basis  determined in accordance  with GAAP;
        provided,  however, with respect to any fiscal quarter ended on or prior
        to March 31, 2002, the Utility Business EBITDA shall include the utility
        business and operations of Montana Power.

               "Wholly-Owned Subsidiary" of any Person shall mean any Subsidiary
        100% of whose Capital Stock is at the time owned by such Person directly
        or  indirectly  through  other  Wholly  Owned  Subsidiaries  (other than
        qualifying directors' shares).

        1.2 Other  Definitional  Provisions(a) . (a) Unless otherwise  specified
therein, all terms defined in this Agreement shall have their respective defined
meanings  when used in the Notes or any  certificate  or other  document made or
delivered pursuant hereto.

        (b) As  used  herein,  in the  Notes  and in any  certificate  or  other
document made or delivered  pursuant  hereto,  accounting  terms relating to the
Borrower  or any  Subsidiary  not defined in Section  1.1 and  accounting  terms
partly  defined  in Section  1.1,  to the  extent  not  defined,  shall have the
respective meanings given to them under GAAP.

        (c) The words  "hereof,"  "herein" and  "hereunder" and words of similar
import when used in this Agreement  shall refer to this Agreement as a whole and
not to any  particular  provision  of  this  Agreement,  and  Article,  Section,
Schedule  and  Exhibit   references  are  to  this  Agreement  unless  otherwise
specified.

        (d) The  meanings  given  to  terms  defined  herein  shall  be  equally
applicable to both the singular and plural forms of such terms.

        (e) The words "include,"  "includes" and "including"  shall be deemed to
be  followed  by the  phrase  "without  limitation".  The word "or" shall not be
exclusive.  The word  "will"  shall be  construed  to have the same  meaning and
effect as the word "shall".



                                       21




        (f) Unless the  context  requires  otherwise  (i) any  definition  of or
reference  to any  agreement,  instrument  or  other  document  herein  shall be
construed as referring to such  agreement,  instrument or other document as from
time to  time  amended,  supplemented  or  otherwise  modified  (subject  to any
restrictions on such amendments, supplements or modifications set forth herein),
(ii) any  reference  herein to any Person  shall be  construed  to include  such
Person's  successors  and assigns,  and (iii) the words  "asset" and  "property"
shall be  construed  to have the same meaning and effect and to refer to any and
all tangible and intangible assets and properties,  including cash,  securities,
accounts and contract rights.

                   ARTICLE 2. AMOUNT AND TERMS OF COMMITMENTS

        2.1  Commitments  and Loans Subject to the terms and  conditions  hereof
(including,  without limitation,  the conditions precedent set forth in Sections
4.1 and 4.2  hereof),  each Lender  severally  agrees to make a term loan to the
Borrower in a principal  amount not to exceed such  Lender's  Commitment  on the
Funding Date which shall be a Business Day during the Availability  Period.  The
Loans (i) at the option of the Borrower may be incurred  and  maintained  as, or
converted into, Alternate Base Rate Loans or Eurodollar Loans in accordance with
the provisions hereof and (ii) shall be repaid in accordance with the provisions
hereof, but once repaid, may not be reborrowed.  For the avoidance of doubt, the
Administrative  Agent may  designate  any Business  Day during the  Availability
Period (but in any event on or prior to the Cash Collateral Release Date) as the
Funding Date. In connection with such designation,  the Required Lenders may, in
their sole discretion,  waive  conditions  precedent set forth in Section 4.2 to
the extent not then satisfied.

        2.2  Evidence of  Indebtedness(a)  . (a) Each Lender  shall  maintain in
accordance   with  its  usual   practice  an  account  or  accounts   evidencing
indebtedness of the Borrower to such Lender resulting from the Loan made by such
Lender,  including,  without  limitation,  the amounts of principal and interest
payable and paid to such Lender from time to time under this Agreement.  (b) The
Administrative  Agent shall maintain the Register pursuant to Section 9.6(d) and
a subaccount  therein for each Lender, in which shall be recorded (i) the amount
of the Loan made by each Lender through the Administrative Agent hereunder,  the
type thereof and each Interest Period applicable thereto, (ii) the amount of any
principal or interest due and payable from the Borrower to each Lender hereunder
and  (iii)  both the  amount of any sum  received  by the  Administrative  Agent
hereunder from the Borrower and each Lender's share thereof.

        (c) The entries  made in the  Register  and the  accounts of each Lender
maintained  pursuant  to  Section  9.6(d)  shall,  to the  extent  permitted  by
applicable  law, be prima  facie  evidence  of the  existence  and amount of the
obligations  of the  Borrower  therein  recorded;  provided,  however,  that the
failure of any Lender or the  Administrative  Agent to maintain  the Register or
any such  account,  or any error  therein,  shall not in any  manner  affect the
obligation of the Borrower to repay (with applicable interest) the Loans



                                       22




actually  made to the  Borrower by such Lender in  accordance  with the terms of
this Agreement.

        2.3  Procedure  for  Borrowing.  As a condition  precedent  to borrowing
hereunder,  the  Borrower  shall give the  Administrative  Agent an  irrevocable
notice  substantially in the form of Exhibit B-1 on or prior to the Funding Date
(which notice must be received by the Administrative  Agent prior to 10:00 a.m.,
New  York  City  time  on the  Funding  Date),  specifying  (1)  that a Loan  is
requested,  (2) the aggregate amount to be borrowed,  (3) the requested  Funding
Date,  (4) whether the borrowing is to be of Eurodollar  Loans,  Alternate  Base
Rate Loans or a combination  thereof,  (5) if the borrowing is to be entirely or
partly of Eurodollar Loans, the amounts of such Eurodollar Loans and the lengths
of the initial  Interest Periods therefor and (6) the number and the location of
the  account to which the  proceeds  are to be  disbursed  (consistent  with the
provisions of hereof).  Upon receipt of any such notice from the  Borrower,  the
Administrative Agent shall promptly notify each Lender thereof. Each Lender will
make  the  amount  of its pro  rata  share of each  borrowing  available  to the
Administrative  Agent  for the  account  of the  Borrower  at the  office of the
Administrative Agent specified in Section 9.2 prior to 11:00 a.m., New York City
time, on the date  requested by the Borrower in funds  immediately  available to
the  Administrative  Agent.  Such  borrowing  will then be made available to the
Borrower by the Administrative  Agent in the manner specified by the Borrower in
such Notice of Borrowing in the  aggregate of the amounts made  available to the
Administrative  Agent  by the  Lenders  and in like  funds  as  received  by the
Administrative  Agent.  If the Borrower  fails to indicate the initial  Interest
Periods in such notice, the Interest Period shall be one month.

        2.4 Fees.The Borrower agrees to pay to the Administrative Agent, for the
account of CSFB or the Administrative Agent, as applicable as set forth therein,
concurrent with signing of this Agreement (or as otherwise  specified  therein),
the fees set forth in the Syndication  Letter.  All fees payable hereunder shall
be paid on the dates due, in immediately  available funds, to the Administrative
Agent for the benefit of the parties  entitled  thereto.  Fees paid shall not be
refundable under any circumstances.

        2.5 Repayment of Loans(a).  Commencing on March 31, 2003 and on the last
Business Day of March,  June,  September  and December  thereafter  prior to the
Maturity  Date,  the Borrower  shall make  quarterly  principal  payments on the
Loans,  each quarterly  payment in an amount equal to one quarter of one percent
(0.25%) of the original  aggregate  principal  amount of the Loans. The Borrower
shall repay the then outstanding  aggregate principal amount of the Loans on the
Maturity  Date,  together with accrued and unpaid  interest  thereon as provided
herein. Any prepayments of the Loans pursuant to Section 2.6 shall be applied in
inverse  chronological  order to the  principal  amounts  due  pursuant  to this
Section.

        2.6  Optional  and  Mandatory   Prepayments.   (a)  Optional   Offer  of
Prepayment.   The  Borrower   may,   upon  written   notice   delivered  to  the
Administrative  Agent at least 10 days (but not more than 30 days)  prior to the
proposed date of prepayment  (which notice shall state the date of such proposed
prepayment,  the aggregate  principal  amount of the Loans to be prepaid and the
proposed prepayment price thereof),



                                       23




offer to  prepay  the  outstanding  principal  amounts  of the Loans in whole or
ratably in part,  together with accrued  interest to the date of such prepayment
on the principal  amount  prepaid;  provided,  however,  that no Lender shall be
obligated to accept such offer; and provided further that the Borrower shall not
be permitted to make an offer to purchase  more than once during any three month
period.  Any Lender may in its discretion accept such offer by written notice to
the  Administrative  Agent (which notice shall also state the maximum  principal
amount of  prepayment  such Lender is willing to  accept).  To the extent one or
more Lenders  accepts any such offer and one or more Lenders rejects such offer,
the amounts that would have been allocable to the rejecting  Lenders may (if and
to the extent accepted by the accepting Lenders) be paid to accepting Lenders in
accordance with their Commitment Percentages.  Any Lender that shall have failed
to respond to an offer  described in this Section 2.6(a) shall be deemed to have
rejected  such offer.  If any Lender shall have rejected (or been deemed to have
rejected) any offer to prepay  described above and the Borrower shall thereafter
vary the offer,  the  Borrower  shall make the modified  offer  available to all
Lenders  for a  period  of at  least  three  Business  Days  before  making  the
contemplated prepayment. Except as provided in this Section 2.6(a), the Borrower
shall not have the right to prepay the Loans.

        (b) [Intentionally Omitted]

        (c)  Mandatory  Offer  of  Prepayment.  If  the  Borrower  or any of its
Subsidiaries  shall at any  time,  or from time to time,  after the date  hereof
receive Net Cash Proceeds in respect of any Reduction Event which,  individually
or in the  aggregate  for  all  prior  Reduction  Events  not the  subject  of a
mandatory offer of prepayment,  exceeds $10,000,000, then, on the first Business
Day  immediately  succeeding  the date of such  receipt,  such Net Cash Proceeds
shall be applied to the  prepayment of any Loans then  outstanding to the extent
and in the manner as provided  below in this  Section  2.6(c).  At least 10 days
(but not more than 30 days) prior to any proposed  Reduction Event, the Borrower
shall give written  notice to the  Administrative  Agent stating the date of the
proposed  Reduction  Event  together with a certificate  signed by a Responsible
Officer of the Borrower  setting forth in reasonable  detail the  calculation of
the Net Cash  Proceeds  therefrom  and  shall  offer to prepay  the  outstanding
principal  amounts  of the Loans  comprising  part of the same  borrowing  in an
amount  equal  to,  in the  case of an Asset  Disposition,  100% of the Net Cash
Proceeds  therefrom or, in the case of an Equity  Issuance,  50% of the Net Cash
Proceeds therefrom, as applicable, together with accrued interest to the date of
such prepayment on the principal  amount  prepaid;  provided,  however,  that no
Lender shall be obligated to accept such offer. Any Lender may in its discretion
accept such offer by written  notice to the  Administrative  Agent (which notice
shall also state the  maximum  principal  amount of  prepayment  such  Lender is
willing to accept). To the extent one or more Lenders accepts any such offer and
one or more  Lenders  rejects  such  offer,  the  amounts  that  would have been
allocable  to the  rejecting  Lenders may (if and to the extent  accepted by the
accepting  Lenders)  be paid to  accepting  Lenders  in  accordance  with  their
Commitment Percentages. Any Lender that shall have failed to respond to an offer
described in this Section 2.6(c) shall be deemed to have rejected such offer. If
for any reason the proposed Reduction Event is delayed by more than 15 days, the
Borrower shall resend the notice and offer provided for in this Section 2.6(b).



                                       24




        (d) Mandatory  Prepayment.  If the Cash Collateral  Release Date has not
occurred on or prior to February 10,  2003,  then the Loans shall become due and
payable in full on February 11, 2003 and the Borrower  shall prepay the Loans on
such date,  together with a prepayment fee equal to one percent (1%) thereof (or
if no Loans are then outstanding,  the Commitments (and the Lenders' obligations
hereunder to extend any credit) shall terminate in full).

        (e)  Additional  Amounts.  Each  prepayment  of Loans  pursuant  to this
Section  2.6 shall be  accompanied  by payment in full of all  accrued  interest
thereon,  to and  including  the  date of such  prepayment,  together  with  any
additional  amounts owing pursuant to Section 2.16 and any outstanding  fees and
expenses due and owing with respect to the amount prepaid.

        2.7  Interest  Rate  Conversion  and  Continuation  Options(a) . (a) The
Borrower  may elect from time to time to convert  Eurodollar  Loans to Alternate
Base Rate Loans by giving the  Administrative  Agent prior irrevocable notice of
such  election  substantially  in the form of Exhibit B-2 (a "Notice of Interest
Rate Conversion") (which notice must be received by the Administrative  Agent by
at least  10:00  a.m.,  New York City  time,  two  Business  Days  prior to such
election);  provided that any such  conversion  of Eurodollar  Loans may be made
only on the last day of an Interest  Period with respect  thereto.  The Borrower
may elect from time to time to convert  Alternate  Base Rate Loans to Eurodollar
Loans by  giving  the  Administrative  Agent  prior  irrevocable  notice of such
election (which notice must be received by the Administrative  Agent by at least
10:00 a.m., New York City time, three Business Days prior to such election). Any
such Notice of Interest Rate  Conversion  to Eurodollar  Loans shall specify the
length of the initial Interest Period or Interest Periods therefor. Upon receipt
of any such notice, the  Administrative  Agent shall promptly notify each Lender
thereof. All or any part of the outstanding  Eurodollar Loans and Alternate Base
Rate Loans may be converted as provided herein; provided that (i) no Loan may be
converted  into  a  Eurodollar  Loan  when  any  Default  has  occurred  and  is
continuing,  (ii) no Loan may be converted into a Eurodollar Loan after the date
that is one month prior to the Maturity Date and (iii) such conversion  shall be
in an aggregate principal amount of $5,000,000 or a whole multiple of $1,000,000
in excess thereof.

        (b) Any Eurodollar Loans may be continued as such upon the expiration of
the then current  Interest  Period with respect  thereto by the Borrower  giving
notice to the Administrative Agent, in accordance with the applicable provisions
of the term "Interest Period" set forth in Section 1.1 of the length of the next
Interest Period to be applicable to such Loans;  provided that (i) no Eurodollar
Loan may be continued  as such when any Default has  occurred and is  continuing
and (ii) no  Eurodollar  Loan which is a Loan may be  continued  as a Eurodollar
Loan  after the date that is one month  prior to the  Maturity  Date;  provided,
further,  that if the  Borrower  shall  fail  to give  any  required  notice  as
described  above in this  paragraph,  or if such  continuation  is not permitted
pursuant to the preceding proviso,  such Loans shall be automatically  converted
to  Alternate  Base Rate  Loans on the last day of such then  expiring  Interest
Period. The  Administrative  Agent agrees to notify the Lenders of any notice of
continuation referred to herein received by the Administrative Agent.



                                       25




        2.8 Maximum Amounts of Eurodollar Tranches. All borrowings,  conversions
and  continuations  of Loans  hereunder and all  selections of Interest  Periods
hereunder  shall be in such amounts and shall be made pursuant to such elections
so that,  after giving effect  thereto,  the aggregate  principal  amount of the
Loans comprising each Eurodollar Tranche shall be equal to $5,000,000 or a whole
multiple  of  $1,000,000  in excess  thereof.  There shall not be more than five
Eurodollar Tranches at any one time outstanding.

        2.9 Interest Rates;  Default Rate Payment Dates(a) . (a) Each Eurodollar
Loan shall bear interest for each day during each  Interest  Period with respect
thereto at a rate per annum  equal to the  Eurodollar  Rate  determined  for the
first  day of such  Interest  Period  (subject  to  daily  adjustments,  if any,
required by changes in the Eurodollar Reserve Requirements) plus 5.75%.

        (b) Each  Alternate  Base Rate Loan  shall bear  interest  at a rate per
annum equal to the Alternate Base Rate plus 4.75%.

        (c) If an Event of Default has  occurred  and is  continuing,  the Loans
shall bear  interest at a rate per annum equal to the rate that would  otherwise
be applicable thereto pursuant to the foregoing  provisions of this Section plus
2% from the date of  occurrence  of such  Event of  Default  until the date such
Event of  Default  is cured or waived  (after as well as  before  judgment).  In
addition,  should any interest on such Loans or any fees or other amount  (other
than  principal)  payable  hereunder not be paid when due (whether at the stated
maturity, by acceleration or otherwise), such overdue amount shall bear interest
(to the extent  permitted  by law in the case of interest on interest) at a rate
per annum as  determined  pursuant  to the  preceding  sentence  which  would be
applicable to an Alternate  Base Rate Loan, in each case,  from the date of such
non-payment  until  such  amount  is  paid  in full  (after  as  well as  before
judgment).

        (d) Interest shall be payable in arrears on each Interest  Payment Date;
provided that interest accruing pursuant to Section 2.9(c) shall be payable from
time to time on demand.

        2.10  Computation  of Interest(a) . (a) The Alternate Base Rate interest
(when  calculated based upon the prime rate) shall be calculated on the basis of
a 365/366 day year and all other  interest shall be calculated on the basis of a
360-day year for the actual days elapsed. The Administrative Agent shall as soon
as practicable  notify the Borrower and the Lenders of each  determination  of a
Eurodollar  Rate.  Any change in the interest  rate on a Loan  resulting  from a
change in the Alternate Base Rate or the Eurodollar  Reserve  Requirements shall
become  effective  as of the opening of business on the day on which such change
becomes  effective.  The  Administrative  Agent shall,  as soon as  practicable,
notify the Borrower and the Lenders of the effective date and the amount of each
such change in interest rate.

        (b) Each determination of an interest rate by the  Administrative  Agent
pursuant to any provision of this  Agreement  shall be conclusive and binding on
the   Borrower  and  the  Lenders  in  the  absence  of  manifest   error.   The
Administrative Agent, at



                                       26




the request of the Borrower,  shall deliver to the Borrower a statement  showing
the quotations used by the Administrative Agent in determining any interest rate
pursuant to Section 2.10(a).

        2.11 Inability to Determine  Interest Rate. If prior to the first day of
any Interest Period:

        (a) the  Administrative  Agent shall have reasonably  determined  (which
determination shall be conclusive and binding upon the Borrower) that, by reason
of circumstances affecting the relevant market, adequate and reasonable means do
not exist for ascertaining the Eurodollar Rate for such Interest Period, or

        (b) the  Administrative  Agent  shall  have  received  notice  from  the
Required  Lenders that the  Eurodollar  Rate  determined or to be determined for
such Interest  Period will not  adequately  and fairly  reflect the cost to such
Lenders (as conclusively certified by such Lenders) of making or maintaining its
affected Loans during such Interest Period,

the Administrative Agent shall give telecopy or telephonic notice thereof to the
Borrower and the Lenders as soon as  practicable  thereafter.  If such notice is
given,  (x) any Eurodollar  Loans  requested to be made on the first day of such
Interest  Period shall be made as Alternate Base Rate Loans,  (y) any Loans that
were to  have  been  converted  on the  first  day of such  Interest  Period  to
Eurodollar  Loans shall be continued  as  Alternate  Base Rate Loans and (z) any
outstanding  Eurodollar  Loans  shall be  converted,  on the  first  day of such
Interest  Period,  to  Alternate  Base Rate  Loans.  Until such  notice has been
withdrawn by the Administrative Agent, no further Eurodollar Loans shall be made
or continued as such, nor shall the Borrower have the right to convert Alternate
Base Rate Loans to Eurodollar Loans.

        2.12 Pro Rata  Treatment  and  Payments;  Funding  Reliance(a) . (a) The
borrowing by the Borrower of Loans from the Lenders  hereunder and any reduction
of the  Commitments  of the  Lenders  shall be made pro  rata  according  to the
respective Commitment Percentages of the Lenders.  Except as provided in Section
2.6,  each payment  (including  each  prepayment)  by the Borrower on account of
principal of and  interest on the Loans of any one Type shall  (except as may be
required  as a  result  of  Section  2.16) be made  pro  rata  according  to the
respective  outstanding principal amounts of the Loans of such Type then held by
the Lenders.  All payments  (including  prepayments)  to be made by the Borrower
hereunder and under the Notes, whether on account of principal,  interest,  fees
or otherwise,  shall be made without  setoff or  counterclaim  and shall be made
prior to 12:00  noon,  New  York  City  time,  on the due  date  thereof  to the
Administrative  Agent,  for the account of the  Lenders,  at the  Administrative
Agent's office specified in Section 9.2, in Dollars and in immediately available
funds.  The  Administrative  Agent shall distribute such payments to the Lenders
promptly upon receipt in like funds as received. If any payment hereunder (other
than payments on the  Eurodollar  Loans)  becomes due and payable on a day other
than a Business  Day,  such  payment  shall be extended  to the next  succeeding
Business Day,  and, with respect to payments of principal and interest  thereon,
shall be payable at the then applicable rate during such extension.



                                       27




        (b) Unless the Administrative  Agent shall have been notified in writing
by any Lender prior to a borrowing  that such Lender will not make  available to
the  Administrative  Agent the  amount  that  would  constitute  its  Commitment
Percentage  of such  borrowing,  the  Administrative  Agent may assume that such
Lender is making such amount  available  to the  Administrative  Agent,  and the
Administrative  Agent may, in reliance upon such  assumption,  make available to
the Borrower a  corresponding  amount.  If the  Administrative  Agent makes such
amount available to the Borrower and if such amount is not made available to the
Administrative  Agent by the required time on the Borrowing Date therefor,  such
Lender  shall pay to the  Administrative  Agent,  on demand,  such  amount  with
interest thereon at a rate equal to the daily average Federal Funds Rate for the
period  until  such  Lender  makes  such  amount  immediately  available  to the
Administrative Agent. A certificate of the Administrative Agent submitted to any
Lender with respect to any amounts  owing under this Section shall be conclusive
in the  absence  of  manifest  error.  If such  Lender  pays such  amount to the
Administrative  Agent,  then such amount shall  constitute  such  Lender's  Loan
included in such  borrowing.  If such  Lender's  Commitment  Percentage  of such
borrowing  is not made  available  to the  Administrative  Agent by such  Lender
within three Business Days of such  Borrowing  Date,  the  Administrative  Agent
shall also be entitled to recover such amount with interest  thereon at the rate
per annum applicable to the applicable Loan, on demand,  from the Borrower.  The
obligations  of the  Lenders  hereunder  are  several  and no  Lender  shall  be
responsible for any other Lender's failure to make Loans as required hereunder.

        2.13  Illegality.  Notwithstanding  any other provision  herein,  if the
adoption of or any change in any  Requirement of Law after the date hereof or in
the interpretation or application  thereof shall make it unlawful for any Lender
to make or maintain Eurodollar Loans as contemplated by this Agreement,  (a) the
commitment  of  such  Lender  hereunder  to  make  Eurodollar  Loans,   continue
Eurodollar  Loans as such and convert  Alternate  Base Rate Loans to  Eurodollar
Loans shall forthwith be suspended until such condition shall cease to exist and
(b) such Lender's Loans then  outstanding as Eurodollar  Loans, if any, shall be
converted automatically to Alternate Base Rate Loans on the respective last days
of the then current  Interest  Periods with respect to such Loans or within such
earlier period as required by law. If any such  conversion of a Eurodollar  Loan
occurs on a day which is not the last day of the then  current  Interest  Period
with respect  thereto,  the Borrower  shall pay to such Lender such amounts,  if
any, as may be required pursuant to Section 2.16.

        2.14  Requirements  of Law(a) . (a) If the  adoption of or any change in
any  Requirement  of Law or in the  interpretation  or  application  thereof  or
compliance  by any Lender with any request or  directive  (whether or not having
the force of law) from any central  bank or other  Governmental  Authority  made
subsequent to the date hereof:

               (i) shall  subject  any Lender to any tax of any kind  whatsoever
        with respect to this Agreement,  its Notes,  any Eurodollar Loan, or its
        obligation to make Eurodollar  Loans, or change the basis of taxation of
        payments to such  Lender in respect  thereof  (except  for  Non-Excluded
        Taxes  covered  by  Section  2.15 and  changes in the rate of tax on the
        overall net income of such Lender);



                                       28




               (ii) shall impose, modify or hold applicable any reserve, special
        deposit,  compulsory loan or similar requirement against assets held by,
        deposits or other liabilities in or for the account of, advances,  loans
        or other extensions of credit by, or any other  acquisition of funds by,
        any  office  of such  Lender  which  is not  otherwise  included  in the
        determination of the Eurodollar Rate hereunder; or

               (iii) shall impose on such Lender any other condition;

and the result of any of the  foregoing  is to increase the cost to such Lender,
by an amount  which such  Lender  reasonably  deems to be  material,  of making,
converting into,  continuing or maintaining  Eurodollar  Loans, or to reduce any
amount  receivable  hereunder in respect  thereof,  then, in any such case,  the
Borrower shall promptly pay such Lender, upon its demand, any additional amounts
necessary to compensate  such Lender for such  increased  cost or reduced amount
receivable.  If any Lender  becomes  entitled  to claim any  additional  amounts
pursuant to this  Section,  it shall  promptly  notify the Borrower  through the
Administrative Agent, of the event by reason of which it has become so entitled.
A certificate  as to any  additional  amounts  payable  pursuant to this Section
submitted by such Lender through the Administrative  Agent to the Borrower shall
be in writing and accompanied by calculations in reasonable detail demonstrating
the basis for such  Lender's  claim and shall be  considered  conclusive  in the
absence of manifest  error.  This covenant shall survive the termination of this
Agreement and the payment of the Obligations hereunder.

        (b) If any Lender  shall have  determined  that the  adoption  of or any
change  in  any  Requirement  of  Law  regarding  capital  adequacy  or  in  the
interpretation  or  application  thereof  or  compliance  by such  Lender or any
corporation  controlling  such Lender with any  request or  directive  regarding
capital adequacy  (whether or not having the force of law) from any Governmental
Authority  made  subsequent  to the date  hereof has or shall have the effect of
reducing the rate of return on such Lender's or the  corporation's  capital as a
consequence of its obligations hereunder to a level below that which such Lender
or such  corporation  could  have  achieved  but for such  change or  compliance
(taking into  consideration  such Lender's or such  corporation's  policies with
respect to capital  adequacy) by an amount deemed by such Lender to be material,
then from time to time,  after submission by such Lender to the Borrower (with a
copy to the Administrative  Agent) of a written request therefor  accompanied by
calculations  in  reasonable  detail  demonstrating  the basis for such Lender's
claims,  the Borrower shall pay to such Lender the additional  amount or amounts
as will compensate  such Lender for such reduction.  This covenant shall survive
the termination of this Agreement and the payment of the Obligations hereunder.

        2.15  Taxes(a).  (a) Any and all payments made by the Borrower to or for
the account of the Administrative Agent or any Lender under this Agreement,  the
Notes or the other Loan  Documents  shall be made free and clear of, and without
deduction  or  withholding  for or on account of, any present or future  income,
stamp or other taxes, levies,  imposts,  duties,  charges,  fees,  deductions or
withholdings,  and  all  liabilities  with  respect  thereto,  now or  hereafter
imposed, levied, collected, withheld or assessed by any



                                       29




Governmental Authority,  excluding net income taxes and franchise taxes (imposed
in lieu of net income taxes) imposed on the  Administrative  Agent or any Lender
by a jurisdiction  under the Laws of which such Lender or its applicable lending
office,  or the  Administrative  Agent,  as the case  may be,  is  organized  or
maintained.  If any such non-excluded taxes, levies,  imposts,  duties, charges,
fees,  deductions,   withholdings  or  liabilities  ("Non-Excluded  Taxes")  are
required to be deducted or withheld from or in respect of any amounts payable to
the  Administrative  Agent or any Lender  hereunder or under the Notes,  (i) the
amounts so payable to the Administrative Agent or such Lender shall be increased
to the  extent  necessary,  so that  after  making all  required  deductions  or
withholdings (including deductions or withholdings applicable to additional sums
payable  under this  Section  2.15),  the  Administrative  Agent or such  Lender
receives  an  amount  equal  to the  sum it  would  have  received  had no  such
deductions  or  withholdings  been  made,  (ii) the  Borrower  shall  make  such
deductions  or  withholdings,  and (iii) the Borrower  shall pay the full amount
deducted or withheld to the relevant  Governmental  Authority in accordance with
applicable law; provided that the Borrower shall not be required to increase any
such  amounts  payable to any  Lender if such  Lender  fails to comply  with the
applicable  requirements  of  paragraph  (b)  of  this  Section.   Whenever  any
Non-Excluded  Taxes  are  payable  by the  Borrower,  as  promptly  as  possible
thereafter,  the  Borrower  shall send to the  Administrative  Agent for its own
account or for the account of such Lender,  as the case may be, a certified copy
of an  original  official  receipt  received  by the  Borrower  showing  payment
thereof.  The Borrower agrees to indemnify and hold harmless each Lender and the
Administrative  Agent from the full  amount of  Non-Excluded  Taxes  (including,
without  limitation,  any such taxes imposed or asserted by any  jurisdiction on
amounts  payable under this Section 2.15) paid or incurred by such Lender or the
Administrative  Agent  (as  the  case  may  be)  and  any  liability  (including
penalties, interest and expenses) arising therefrom or with respect thereto. The
covenants in this Section shall survive the  termination  of this  Agreement and
the payment of the Notes and payment of the Obligations hereunder.

        (b) Each Lender shall:

               (i) deliver to the Borrower and the  Administrative  Agent (A) in
        the  case of a Lender  that is not  incorporated  under  the laws of the
        United States or any state thereof, either (x) two duly completed copies
        of United  States  Internal  Revenue  Service Form W-8BEN or W-8ECI,  as
        applicable,  or successor  applicable forms, as the case may be, or, (y)
        if  such  Lender  is  not  a  "bank"   within  the  meaning  of  Section
        881(c)(3)(A)  of the  Code and  intends  to claim  exemption  from  U.S.
        Federal  withholding  tax under Section  871(h) or Section 881(c) of the
        Code with respect to payments of "portfolio interest", a Form W-8BEN, or
        any subsequent  versions  thereof or successors  thereto together with a
        certificate executed by such Lender representing that (1) such Lender is
        not a bank for  purposes  of  Section  881(c) of the  Code,  is not a 10
        percent shareholder  (within the meaning of Section  871(h)(3)(B) of the
        Code)  of  the  Borrower  and is not a  controlled  foreign  corporation
        related to the Borrower (within the meaning of Section  864(d)(4) of the
        Code), and claiming complete exemption from U.S. Federal withholding tax
        on payments of interest by



                                       30




        the  Borrower  under  this  Agreement,  the  Notes  and the  other  Loan
        Documents  and (2) the Lender has  received in  replacement  of any Note
        held by or  assigned  to it,  a QFL  Note  in  accordance  with  Section
        2.15(c),  and (B) in the case of any other Lender,  an Internal  Revenue
        Service Form W-9, as applicable,  or successor  applicable  form, as the
        case may be;

               (ii)  deliver to the Borrower  and the  Administrative  Agent two
        further copies of any such form or  certification  on or before the date
        that any such form or  certification  expires  or becomes  obsolete  and
        after the occurrence of any event  requiring a change in the most recent
        form previously delivered by it to the Borrower; and

               (iii) obtain such extensions of time for filing and complete such
        forms or  certifications  as may reasonably be requested by the Borrower
        or the Administrative Agent;

unless in any such case an event (including,  without limitation,  any change in
treaty,  law or  regulation)  has  occurred  prior to the date on which any such
delivery  would  otherwise be required which renders such form  inapplicable  or
which would prevent such Lender from duly  completing  and  delivering  any such
form  with  respect  to it and such  Lender  so  advises  the  Borrower  and the
Administrative Agent. Such Lender shall certify (i) in the case of a Form W-8BEN
or W-8ECI,  as  applicable,  that it is entitled to receive  payments under this
Agreement at a reduced rate of withholding, or without deduction or withholding,
as the case may be, of any United  States  federal  income taxes and (ii) in the
case of a Form W-9,  that it is entitled  to an  exemption  from  United  States
backup  withholding tax. Each Person that shall become a Lender or a Participant
pursuant to Section 9.6 shall,  upon the  effectiveness of the related transfer,
be required to provide all the applicable forms and statements required pursuant
to this Section;  provided that, in the case of a Participant,  such Participant
shall furnish all such required  forms and  statements to the Lenders from which
the related participation shall have been purchased.

        (c) Any  Lender  that is not a "bank"  within  the  meaning  of  Section
881(c)(3)(A)   of  the  Code  and   satisfies   the   requirements   of  Section
2.15(b)(i)(A)(y)  (a  "Qualified  Foreign  Lender")  shall,  upon receipt of the
written  request of the  Administrative  Agent or the Borrower and may, upon its
own written request to the  Administrative  Agent,  exchange any Note held by or
assigned to it for a qualified  foreign  lender note (a "QFL Note").  A QFL Note
shall be  substantially  in the form  attached  hereto as Exhibit  A-2 and shall
contain the following legend,  "This Note is a QFL Note, and as such,  ownership
of the  obligation  represented  by such  QFL Note  may be  transferred  only in
accordance  with Section 2.15 of the Credit  Agreement."  Any QFL Note issued in
replacement  of any existing Note pursuant to this Section  2.15(c) shall be (i)
dated the Closing Date, (ii) issued in the name of the entity in whose name such
existing Note was issued and (iii) issued in the same  principal  amount as such
existing Note. Any Note replaced pursuant to this Section is sometimes  referred
to herein as a "Replaced Note".



                                       31




        (d) The  Borrower  agrees  that,  upon the  request of, or delivery of a
request  to, a  Qualified  Foreign  Lender  pursuant  to  paragraph  (c) of this
Section, it shall execute and deliver a QFL Note to the Administrative  Agent in
replacement  of the Replaced Note  surrendered  in connection  with such request
conforming to the requirements of this paragraph.  Each Qualified Foreign Lender
shall  surrender its Note in connection  with any  replacement  pursuant to this
Section 2.15. Upon receipt by the  Administrative  Agent, in connection with any
replacement, of a QFL Note and the existing Note to be replaced by such QFL Note
in accordance with this paragraph,  the  Administrative  Agent shall forward the
QFL Note to the Lender which has  surrendered  its Note for  replacement by such
QFL  Note  and  shall  forward  the  surrendered  Note  to the  Borrower  marked
"canceled".  Once issued,  QFL Notes (i) shall be deemed to and shall be "Notes"
for all purposes under the Loan  Documents,  (ii) may not be exchanged for Notes
which are not QFL Notes,  notwithstanding  anything to the  contrary in the Loan
Documents  and (iii)  shall at all times  thereafter  be QFL  Notes,  including,
without limitation, following any transfer or assignment thereof.

        (e) Notwithstanding  anything to the contrary in the Loan Documents, the
QFL Notes are registered  obligations as to both principal and interest with the
Borrower  and  transfer  of the  obligations  underlying  such  QFL  Note may be
effected only by surrender of the QFL Note to the Borrower and either reissuance
by the Borrower of such QFL Note to the  transferee  or issuance by the Borrower
of a new QFL Note to the transferee. A QFL Note shall only evidence the Lender's
or an assignee's right, title and interest in and to the related obligation, and
in no event is a QFL Note to be considered a bearer  instrument  or  obligation.
This Section 2.15 shall be construed so that the obligations  underlying the QFL
Notes are at all times  maintained  in  "registered  form" within the meaning of
Sections 871(h)(2) and 881(c)(2) of the Code.

        2.16 Indemnity. The Borrower agrees to indemnify each Lender and to hold
each Lender  harmless  from any loss or expense which such Lender may sustain or
incur as a consequence of (a) default by the Borrower in payment when due of the
principal  amount of or  interest  on any  Eurodollar  Loan,  (b) default by the
Borrower in making a borrowing of, conversion into or continuation of Eurodollar
Loans after the Borrower has given a notice  requesting the same, (c) default by
the  Borrower in making any  prepayment  after the  Borrower  has given a notice
thereof or (d) the making of a prepayment or conversion of Eurodollar Loans on a
day  which  is not the last  day of an  Interest  Period  with  respect  thereto
including,  without  limitation,  in each case, any such loss or expense arising
from the  redeployment of funds obtained by it or from fees payable to terminate
the deposits from which such funds were  obtained.  This covenant  shall survive
the termination of this Agreement and the payment of the Obligations hereunder.

        2.17 Discretion of Lender as to Manner of Funding.  Notwithstanding  any
other  provisions of this Agreement  (but subject to Section 2.18),  each Lender
shall be  entitled  to fund and  maintain  its funding of all or any part of its
Loans in any manner it sees fit, it being  understood  that for the  purposes of
this Agreement all  determinations  hereunder shall be made assuming each Lender
had actually  funded and maintained each Eurodollar Loan through the purchase of
deposits of Dollars in the London interbank



                                       32




market  having a  maturity  corresponding  to each  Loan's  Interest  Period and
bearing an interest rate equal to the Eurodollar Rate for such Interest Period.

        2.18 Change of Lending Office;  Replacement  Lender(a) . (a) Each Lender
agrees that if it makes any demand for  payment  under  Section  2.14 or Section
2.15 or if any  adoption or change of the type  described  in Section 2.13 shall
occur with respect to it, such Lender will use  reasonable  efforts  (consistent
with its internal  policy and legal and regulatory  restrictions  and so long as
such  efforts  would  not be  disadvantageous  to it as  determined  in its sole
discretion)  to  designate  a different  lending  office if the making of such a
designation  would reduce or obviate the need for the Borrower to make  payments
under Section 2.14 or Section  2.15, or would  eliminate or reduce the effect of
any adoption or change described in Section 2.13.

        (b)  In  determining  the  amount  of any  claim  for  reimbursement  or
compensation  hereunder,  each Lender will use reasonable methods of calculation
consistent  with such  methods  customarily  employed  by such Lender in similar
situations.

        (c) Each Lender will notify the Borrower and the Administrative Agent of
any  event  giving  rise to a claim  under  Sections  2.13,  2.14,  2.15 or 2.16
promptly  after the occurrence  thereof,  which notice shall be accompanied by a
certificate of such Lender setting forth in reasonable  detail the circumstances
of such claim.

        (d) If any  Lender,  other  than  (in  its  capacity  as a  Lender)  the
Administrative  Agent (an "Affected  Lender"),  seeks payment or indemnification
from the Borrower pursuant to Section 2.14 or Section 2.15(a) (without prejudice
to any  amounts  then  due to such  Lender  under  such  Sections)  that are not
applicable  to all Lenders,  then the Borrower may designate  another  Lender or
another bank or financial institution  acceptable to the Administrative Agent to
assume,  in  accordance  with  Section  9.6,  all (but not  less  than  all) the
Commitments,  Loans and other rights and  obligations  of such  Affected  Lender
hereunder (a "Replacement  Lender"), in each case, on a date mutually acceptable
to  the  Replacement   Lender,   the  Affected  Lender,  the  Borrower  and  the
Administrative  Agent,  without recourse upon,  warranty by, or expense to, such
Affected Lender or the  Administrative  Agent, for a purchase price equal to the
outstanding  principal  amount of the  Loans of such  Affected  Lender  plus all
interest  accrued  thereon and all other amounts  owing to such Affected  Lender
hereunder,  or such other purchase price as may be mutually  agreed upon between
the  Affected  Lender  and the  Replacement  Lender,  upon such  assumption  and
purchase by the Replacement  Lender,  such Replacement  Lender shall be deemed a
"Lender" for purposes of this  Agreement  and the other Loan  Documents and such
Affected  Lender  shall cease to be a "Lender"  for such  purposes  and shall no
longer have any obligations hereunder.

                    ARTICLE 3. REPRESENTATIONS AND WARRANTIES

               To induce the Administrative  Agent and the Lenders to enter into
this Agreement and to make or participate in extensions of credit hereunder, the
Borrower  hereby  represents and warrants to the  Administrative  Agent and each
Lender:



                                       33




        3.1 Financial  Condition(a) . (a) The consolidated balance sheets of the
Borrower as of December  31,  1999,  December 31, 2000 and December 31, 2001 and
the related consolidated  statements of income, retained earnings and cash flows
for the fiscal year ended on such date, and the unaudited  consolidated  balance
sheets of the Borrower and its  Consolidated  Subsidiaries  as of September  30,
2002; and the related consolidated  statements of income,  retained earnings and
cash flows for the period  ending as of such date,  reported  on, in the case of
the 1999 and 2000 annual audited financial  statements,  by Arthur Andersen LLP,
or in the case of the 2001 annual audited  financial  statements,  by Deloitte &
Touche LLP,  copies of which have  heretofore  been  furnished  to the  Lenders,
present  fairly the  consolidated  financial  condition  of the Borrower and its
Consolidated  Subsidiaries as at such date, and the results of their  operations
and their  retained  earnings and cash flows for each of the fiscal periods then
ended. All such financial statements,  including the related schedules and notes
thereto  relating to the audited  financials,  have been  prepared in accordance
with GAAP applied consistently throughout the periods involved.

        (b) All balance sheets, all statements of income and shareholders equity
and of cash flows and all other financial  information  which shall hereafter be
furnished by or on behalf of or the Borrower to the Administrative Agent for the
purposes  of,  or  in  connection   with,  this  Agreement  or  any  transaction
contemplated  hereby  have  been or will be  prepared  in  accordance  with GAAP
consistently  applied  throughout  the  periods  involved  (except as  disclosed
therein) and do or will present fairly  (subject to normal  year-end  adjustment
and the absence of footnotes in the case of financial  statements for any fiscal
quarter)  the  financial   condition  of  the  Borrower  and  its   Consolidated
Subsidiaries,  as the case may be, as at the dates  thereof  and the  results of
their  operations and their  shareholders  equity and cash flows for the periods
then ended.

        (c) The sum of  shareholders'  equity  and  preferred  stock  (including
mandatorily  redeemable preferred stock of subsidiary trusts),  preference stock
and  preferred  securities  of the  Borrower  and  its  subsidiaries  (including
Excluded  Subsidiaries but excluding  discontinued  operations) on September 30,
2002 was $770,000,000.

        3.2 No Change. Since December 31, 2001, there has been no development or
event which has had, or could reasonably be expected to have, a Material Adverse
Effect.

        3.3 Corporate  Existence;  Compliance with Law. Each of the Borrower and
its  Subsidiaries  (a) is duly organized,  validly existing and in good standing
under the laws of the jurisdiction of its organization, (b) has the corporate or
limited  liability  company power and authority,  and the legal right to own and
operate its property, to lease the property it operates as lessee and to conduct
the  business  in which it is  currently  engaged,  (c) is duly  qualified  as a
foreign  corporation or limited liability company and in good standing under the
laws of each jurisdiction where its ownership, lease or operation of property or
the conduct of its business  requires  such  qualification  except to the extent
that the failure to comply therewith could not, in the aggregate,  reasonably be
expected to have a Material  Adverse  Effect and (d) is in  compliance  with all
Requirements of Law,



                                       34




except to the extent that the failure to comply  therewith  could not reasonably
be expected to have a Material Adverse Effect.

        3.4  Corporate  Power;  Authorization;   Enforceable  Obligations.   The
Borrower  has (or with respect to the First  Mortgage  Bonds,  the  Supplemental
Indentures and the Bond Collateral Agreement,  when executed, the Borrower shall
have) the corporate power and authority,  and the legal right, to make,  deliver
and  perform  the  Indentures  and  the  Loan  Documents  and to  authorize  the
execution,  delivery  and  performance  of the  Loan  Documents,  and to  borrow
hereunder.  The Borrower has (or with respect to the First Mortgage  Bonds,  the
Supplemental  Indentures and the Bond Collateral Agreement,  when executed,  the
Borrower  shall have) taken all  necessary  corporate  action to  authorize  the
borrowings on the terms and  conditions  set forth in this  Agreement and in the
Notes and to execute,  deliver and perform its obligations  under the Indentures
and the  Loan  Documents.  Set  forth  on  Schedule  3.4a  are all  consents  or
authorizations  of, filings with,  notices to or other acts by or in respect of,
any  Governmental  Authority or any other Person required in connection with the
authorization,   execution,   or  issuance  of  any  First  Mortgage  Bond,  the
authorization,  delivery, performance or validity of any Supplemental Indenture,
or the execution, delivery, performance,  validity or enforceability of the Bond
Collateral  Agreement or any Collateral  Document related  thereto,  and in each
case any application therefor (collectively, the "First Mortgage Approvals"). No
consent  or  authorization  of,  filing  with,  notice  to or other act by or in
respect  of, any  Governmental  Authority  or any other  Person is  required  in
connection  with the  borrowings  hereunder,  or with the  execution,  delivery,
performance,  validity or  enforceability  of the Loan Documents  other than (x)
First  Mortgage  Approvals,  (y) as set  forth  on  Schedule  3.4b,  or (z)  any
consents,  authorizations  and filings in connection with the foregoing that, if
not  obtained,  could not  reasonably  be  expected  to have a Material  Adverse
Effect. On the Closing Date, the Administrative Agent and each Lender shall have
received complete and current copies of all consents, authorizations and filings
listed on Schedule 3.4b. On the Cash Collateral Release Date, the Administrative
Agent and each Lender shall have  received  complete  and current  copies of all
First Mortgage Approvals.  No such consent,  authorization or filing is or shall
be conditioned  upon or otherwise  imposes any materially  burdensome or adverse
condition.  This  Agreement and the  Indentures  have been,  and each other Loan
Document  when  executed and  delivered  will be, duly executed and delivered on
behalf of the Borrower.  This Agreement and the Indentures constitute,  and each
other Loan Document when executed and delivered will constitute,  a legal, valid
and binding  obligation of the Borrower  enforceable  against the  Borrower,  in
accordance with their respective terms,  except as enforceability may be limited
by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws
affecting  the  enforcement  of  creditors'  rights  generally  and  by  general
equitable  principles (whether enforcement is sought by proceedings in equity or
at law).

        3.5 No Legal Bar. The  execution,  delivery and  performance of the Loan
Documents,  the borrowings  hereunder and the use of the proceeds thereof,  will
not violate any Requirement of Law or Contractual  Obligation of the Borrower or
any Subsidiary  which violation could  reasonably be expected to have a Material
Adverse Effect, will not accelerate or result in the acceleration of any payment
obligations of the



                                       35




Borrower or such Subsidiary and will not result in, or require,  the creation or
imposition  of any Lien on any of the  respective  properties or revenues of the
Borrower  or any such  Subsidiary  pursuant  to any such  Requirement  of Law or
Contractual  Obligation  (other  than Liens  pursuant to the  Indentures  or the
Collateral Documents).

        3.6 No Material Litigation.  No litigation,  investigation or proceeding
of or before any  arbitrator  or  Governmental  Authority  is pending or, to the
knowledge of the Borrower, threatened by or against the Borrower, any Subsidiary
or any  Excluded  Subsidiary  or against  any of the  respective  properties  or
revenues of the Borrower,  any Subsidiary or any Excluded Subsidiary which could
reasonably be expected to have a Material Adverse Effect.

        3.7 No  Default.  No  Default or Event of Default  has  occurred  and is
continuing.

        3.8 Ownership of Property;  Liens.  Except as set forth in Schedule 3.8,
each  of the  Borrower  and  its  Material  Subsidiaries  has  good  record  and
marketable  title in fee simple to, or a valid  leasehold  interest  in, all its
material real property, and good title to, or a valid leasehold interest in, all
its other material property.  None of such property is subject to any Lien other
than Permitted Liens.

        3.9 [Intentionally Omitted].

        3.10  Intellectual  Property.  Each of the Borrower and its Subsidiaries
owns, or is licensed to use, all patents,  trademarks,  trade names, copyrights,
technology, know-how, processes, logos and insignia necessary for the conduct of
its business as currently conducted except for those which the failure to own or
license could not reasonably be expected to have a Material  Adverse Effect (the
"Intellectual  Property").  No claim has been  asserted  and is  pending  by any
Person  challenging or questioning the use of any such Intellectual  Property or
the validity or  effectiveness  of any such  Intellectual  Property  which could
reasonably be expected to have a Material Adverse Effect,  nor does the Borrower
or any  Consolidated  Subsidiary know of any valid basis for any such claim. The
use of such  Intellectual  Property by the Borrower or any  Subsidiary  does not
infringe on the rights of any Person,  except for such claims and  infringements
that,  in the  aggregate,  could not  reasonably  be expected to have a Material
Adverse Effect.

        3.11 No Burdensome  Restrictions.  No  Requirement of Law or Contractual
Obligation of the Borrower,  any  Subsidiary  or any Excluded  Subsidiary  could
reasonably be expected to have a Material Adverse Effect.

        3.12 Taxes.  Except as set forth in Schedule 3.12,  each of the Borrower
and the  Subsidiaries  has filed or caused  to be filed all  federal,  state and
other material tax returns which are required to be filed and has paid all taxes
(including  interest and penalties)  shown to be due and payable on said returns
or on any  assessments  made  against  it or any of its  property  and all other
taxes,  fees  or  other  charges  imposed  on it or any of its  property  by any
Governmental Authority (other than any tax, fee or other



                                       36




charge the amount or  validity of which is  currently  being  contested  in good
faith  by  appropriate  proceedings  and  with  respect  to  which  reserves  in
conformity  with GAAP have been  provided  on the books of the  Borrower or such
Subsidiary,  as the case may be);  and no tax Lien has been  filed,  and, to the
knowledge of the Borrower, no claim is being asserted,  with respect to any such
tax, fee or other charge.

        3.13 Margin  Stock(a) . (a) The  Borrower is not engaged in the business
of  extending  credit for the purpose of  purchasing  or carrying  margin  stock
(within the meaning of Regulation U), and no proceeds of any extension of credit
hereunder will be used to purchase or carry any margin stock or to extend credit
to others for the purpose of purchasing or carrying any margin stock,  except in
compliance with applicable law and regulations.

        (b) Following  application  of the proceeds of each  extension of credit
hereunder,  not more  than 25% of the  value of the  consolidated  assets of the
Borrower and its Consolidated Subsidiaries that are subject to the provisions of
Section 6.3 will be comprised of margin stock.

        3.14  ERISA.   Neither  the  Borrower  nor  any  Subsidiary   maintains,
contributes to or has material obligations with respect to, any welfare plan (as
defined in  Section(3)(1)  of ERISA) which provides  benefits to employees after
termination  of employment  other than as required by Part 6 of Title I of ERISA
or similar state laws regarding continuation of benefits. Each Plan has complied
and is in compliance in all respects with the applicable provisions of ERISA and
the Code except where failure to do so could not  reasonably be expected to have
a Material  Adverse  Effect.  The Borrower and each Subsidiary have not breached
any of the  responsibilities,  obligations or duties imposed on it by ERISA, the
Code, or  regulations  promulgated  thereunder  with respect to any Plan,  which
breach could reasonably be expected to have a Material  Adverse Effect.  Neither
the Borrower nor any  Subsidiary nor any fiduciary of any Plan who is an officer
or an employee  of the  Borrower  or any  Subsidiary  has engaged in a nonexempt
prohibited  transaction  described  in Section  406 of ERISA or 4975 of the Code
with  respect to a Plan which  could  reasonably  be expected to have a Material
Adverse Effect. With respect to any employee benefit plan (as defined in Section
3(3) of  ERISA)  currently  or  formerly  maintained  or  contributed  to by any
Commonly  Controlled Entity, no liability exists and no event has occurred which
could  subject  the  Borrower or any  Subsidiary  to any  liability  which could
reasonably be expected to have a Material Adverse Effect. Except as disclosed in
Schedule 3.14, none of the Borrower or any Subsidiary has any liability,  direct
or indirect,  contingent (including,  without limitation,  any such liability in
connection with a Multiemployer  Plan) or otherwise,  under Title IV of ERISA or
under  Section  412 of the Code which  could  reasonably  be  expected to have a
Material Adverse Effect.

        3.15 Holding Company;  Investment  Company Act; Other  Regulations.  The
Borrower  is not (a) an  "investment  company" or a company  "controlled"  by an
"investment company",  within the meaning of the Investment Company Act of 1940,
as amended,  or (b) except as described on Schedule 3.15,  subject to regulation
under any Federal or state statute, regulation, decree or order which limits its
ability to incur



                                       37




Indebtedness or conditions such ability upon any act, approval or consent of any
Governmental  Authority  or an ISO.  The  Borrower  is either (i) not a "holding
company", a "subsidiary company" of a "holding company",  or an "affiliate" of a
"holding  company",  as each such term is defined in the Public Utility  Holding
Company Act of 1935, as amended,  or (ii) exempt from  registration as a holding
company under The Public Utility Holding Company Act of 1935 by reason of filing
an application on Form U-1 in good faith seeking an order of exemption  pursuant
to Section  3(a)(3) of that Act, and the  Borrower has not received  notice from
the SEC challenging or otherwise calling into question such exemption.

        3.16  Purpose of Loans.  The  proceeds  of Loans will be used solely (i)
first to repay in full and  terminate  the  Existing  Credit  Facility  and (ii)
thereafter for general corporate purposes of the Borrower,  its Subsidiaries and
its  Excluded  Subsidiaries  as  permitted  hereunder  (in  compliance  with all
applicable legal and regulatory requirements).

        3.17 Environmental Matters. Except as set forth on Schedule 3.17,

        (a) The  facilities  and  properties  owned,  leased or  operated by the
Borrower, its Subsidiaries or any Excluded Subsidiary (the "Properties") and all
operations  at the  Properties  are in,  and  have  been in,  compliance  in all
material  respects  with all  applicable  Environmental  Laws,  and  there is no
contamination  in, at, under,  from or about the  Properties or violation of any
Environmental  Law or other  circumstance  or  condition,  with  respect  to the
Properties or the business  operated by the Borrower,  its  Subsidiaries  or any
Excluded Subsidiary, or any predecessor of any of them (the "Business") which in
either case could  reasonably  be  expected to result in any claims,  liability,
investigation or cost pursuant to any  Environmental  Law and to have a Material
Adverse Effect.

        (b) None of the Borrower, any Subsidiary or any Excluded Subsidiary,  or
any  predecessor of any of them,  has received any notice of violation,  alleged
violation,   non-compliance,   liability   or  potential   liability   regarding
environmental  matters or compliance with  Environmental Laws with regard to any
of the Properties or the Business,  nor do the Borrower or any  Subsidiary  have
knowledge or reason to believe that any such notice will be received or is being
threatened,  in each case which could  reasonably be expected to have a Material
Adverse Effect.

        (c) There has been no  Release  or threat of  Release  of  Materials  of
Environmental  Concern  at or from any of the  Properties,  or  arising  from or
related to the  operations  of the  Borrower,  any  Subsidiary  or any  Excluded
Subsidiary,  or any  predecessor  of any of them, in connection  with any of the
Properties or otherwise in connection with the Business that could reasonably be
expected to have a Material Adverse Effect.

        3.18  Insurance.  All  policies  of  insurance  of any  kind  or  nature
maintained by or issued to the Borrower or any  Subsidiary,  including,  without
limitation,  policies of life, fire, theft, product liability, public liability,
property damage, other



                                       38




casualty, employee fidelity, worker's compensation, employee health and welfare,
title,  property and  liability  insurance,  are in full force and effect in all
material respects and are of a nature and provide such coverage as is sufficient
and as is customarily carried by companies of similar size and character.

        3.19 Accuracy and Completeness of Information. All information,  reports
and other papers and data (other than projections) with respect to the Borrower,
any  Subsidiary  or any  Excluded  Subsidiary  furnished  to the  Lenders by the
Borrower,  or on behalf of the  Borrower,  and all SEC Reports were, at the time
furnished,  complete  and  correct  in  all  material  respects,  or  have  been
subsequently supplemented by other information, reports or other papers or data,
to the extent necessary to give the Lenders a true and accurate knowledge of the
subject matter in all material  respects.  All  projections  with respect to the
Borrower  or  any  Subsidiary  furnished  by the  Borrower,  were  prepared  and
presented in good faith by the Borrower  based upon facts and  assumptions  that
the  Borrower  believed to be  reasonable  in light of current  and  foreseeable
conditions,  it being  understood  that  projections  are subject to significant
uncertainties  and  contingencies,  many of which are beyond the  control of the
Borrower and that no assurance can be given that the financial results set forth
in such projections will actually be realized and the Borrower shall be under no
obligation to update such projections.  No document  furnished or statement made
in writing to the Lenders by or on behalf of the Borrower in connection with the
negotiation,  preparation  or  execution  of this  Agreement  and no SEC  Report
contains  any untrue  statement of a material  fact,  or omits to state any such
material fact  necessary in order to make the statements  contained  therein not
misleading,  in  either  case  which  has not been  corrected,  supplemented  or
remedied by subsequent  documents furnished or statements made in writing to the
Lenders.

        3.20 Leaseholds,  Permits,  etc. The Borrower possesses or has the right
to use, all leaseholds, easements, franchises and permits and all authorizations
and other  rights  which are  material to and  necessary  for the conduct of the
Business and its business.  All the foregoing are in full force and effect,  and
each of the Borrower and the Subsidiaries is in substantial  compliance with the
foregoing without any known conflict with the valid rights of others, except for
such  noncompliance with the foregoing which could not reasonably be expected to
have a Material  Adverse Effect.  No event has occurred which permits,  or after
notice or lapse of time or both would permit,  the  revocation or termination of
any  such  leasehold,   easement,  franchise,  license  or  other  right,  which
termination or revocation,  considered as a whole,  could reasonably be expected
to have a Material Adverse Effect.

        3.21 No  Restrictive  Covenants.  No Subsidiary of the Borrower is party
to, or otherwise  bound by, any agreement or other  arrangement  that  prohibits
such  Subsidiary  from  making any  payments,  directly  or  indirectly,  to the
Borrower,  by way of  dividends,  advances,  repayment  of  loans  or  advances,
reimbursements  of  management  or  other  intercompany  charges,  expenses  and
accruals or other returns on investment,  or any other  agreement or arrangement
that restricts the ability of such  Subsidiary to make any payment,  directly or
indirectly,  to the Borrower, other than prohibitions and restrictions permitted
to exist under Section 6.12.



                                       39




        3.22 Solvency. The Borrower is solvent, is able to pay its debts as they
mature,  owns property with fair saleable value greater than the amount required
to pay its debts and has  capital  sufficient  to carry on its  business as then
constituted.

        3.23 Montana First Mortgage Indenture.

        (a) The First  Mortgage  Bonds to be  issued  under  the  Montana  First
Mortgage  Indenture,  as heretofore  supplemented  and to be supplemented by the
Twenty-Third Supplemental Indenture (the "Montana Supplemental Indenture"), when
delivered to the Collateral Agent, will be duly executed, authenticated,  issued
and delivered,  and will constitute valid and legally binding obligations of the
Borrower,  entitled to the security  and  benefits  provided by the lien of such
Indenture (except to the extent that  enforceability of such lien may be limited
by the  effect  of  certain  laws of the  jurisdictions  in which  the  physical
properties  covered  thereby  are  located  upon the  remedies  provided in such
Indenture,  which  limitations,  however,  do not  make  the  remedies  afforded
inadequate  for the  realization  of the security and benefits  provided by such
Indenture,  and  except  as  enforceability  of  such  lien  may be  limited  by
bankruptcy,  insolvency,  reorganization,   moratorium  or  other  similar  laws
affecting the enforcement of creditors' rights).

        (b) The Montana First Mortgage Indenture as heretofore  supplemented now
constitutes,  and such Indenture,  when the Montana Supplemental Indenture shall
have been duly filed for  recording  and recorded,  will  constitute,  a legally
valid  and  directly   enforceable   first  mortgage  lien  for  the  equal  and
proportionate  security  of the  first  mortgage  bonds  issued  or to be issued
thereunder,  upon substantially all of the physical properties and franchises of
the Borrower  which are  specifically  described  therein as subject to the lien
thereof  and  which are used or useful in the  conduct  of the  Montana  Utility
Business,  free from all prior  liens,  charges or  encumbrances  (except to the
extent that  enforceability of such lien may be limited by the effect of certain
laws of the jurisdictions in which the physical  properties  covered thereby are
located upon the remedies provided in such Indenture as heretofore  supplemented
and to be supplemented by the Montana Supplemental Indenture, which limitations,
however, do not make the remedies afforded inadequate for the realization of the
security and benefits  provided by such Indenture,  and except as enforceability
of  such  lien  may  be  limited  by  bankruptcy,  insolvency,   reorganization,
moratorium or other similar laws affecting the enforcement of creditors' rights)
and the  after-acquired  property clause in such Indenture  subjects to the lien
thereof all  after-acquired  utility property of the Montana Utility Business as
provided therein (except such thereof as is expressly  excepted from the lien of
such Indenture).

        (c) The Montana First  Mortgage  Indenture as  heretofore  supplemented,
(including  any  necessary  related  financing  statements),  has been filed and
recorded  wherever and to the extent  necessary to perfect the lien thereof upon
the properties now owned by the Borrower and intended to be subject thereto; all
fees or taxes in  connection  therewith  have been  paid and no other  filing or
recordation  is  presently  necessary  in  order  to  perfect  the  lien of such
Indenture on such properties.



                                       40




        (d) No filing or  recording  of the Montana  Supplemental  Indenture  is
necessary to perfect the lien of the Montana First  Mortgage  Indenture upon the
properties  now owned by the Borrower  and intended to be subject  thereto or to
extend  such  lien for the  benefit  of the  First  Mortgage  Bonds to be issued
thereunder;  no  re-recording  or  refiling  of  such  Indenture  or  any  other
instruments  or  documents   (except  for  periodic  filings  which  extend  the
effectiveness  of financing  statements) is required to preserve and protect the
lien of such  Indenture;  and under the present  laws of the States in which the
property  intended to be subject to the lien of such  Indenture  is located,  no
further  supplemental  indentures or other instruments or documents are required
to be executed,  filed and/or  recorded to extend the lien of such  Indenture to
after-acquired  property;  however, the Borrower is required by the terms of the
Montana  First  Mortgage  Indenture  to  promptly  record  and file the  Montana
Supplemental Indenture.

        (e) The Borrower has good and marketable  title to all properties  owned
by it which are subject to the Montana First  Mortgage  Indenture,  subject only
(a) to the lien of such Indenture,  (b) to Excepted  Encumbrances (as defined in
such Indenture)  which are Permitted Liens hereunder and (c) to minor exceptions
and defects which do not, in the aggregate, materially interfere with the use by
the  Borrower  of such  properties  for the  purposes  for which  they are held,
materially  detract  from the value of said  properties  or in any  material way
impair the security afforded by such Indenture.

        3.24 South Dakota First Mortgage Indenture.

        (a) The First  Mortgage  Bonds to be issued under the South Dakota First
Mortgage  Indenture,  as heretofore  supplemented  and to be  supplemented  by a
Supplemental  Indenture  creating  the South Dakota  First  Mortgage  Bonds (the
"South Dakota Supplemental Indenture"),  when delivered to the Collateral Agent,
will be duly executed, authenticated,  issued and delivered, and will constitute
valid and legally binding obligations of the Borrower,  entitled to the security
and benefits  provided by the lien of such Indenture  (except to the extent that
enforceability  of such lien may be limited by the effect of certain laws of the
jurisdictions in which the physical  properties covered thereby are located upon
the remedies provided in such Indenture, which limitations, however, do not make
the  remedies  afforded  inadequate  for the  realization  of the  security  and
benefits  provided by such Indenture,  and except as enforceability of such lien
may be limited by bankruptcy,  insolvency,  reorganization,  moratorium or other
similar laws affecting the enforcement of creditors' rights).

        (b) The South Dakota First Mortgage Indenture as heretofore supplemented
now  constitutes,  and  such  Indenture,  when  the  South  Dakota  Supplemental
Indenture  shall  have  been  duly  filed  for  recording  and  recorded,   will
constitute, a legally valid and directly enforceable first mortgage lien for the
equal and  proportionate  security of the first  mortgage  bonds issued or to be
issued  thereunder,  upon  substantially  all of  the  physical  properties  and
franchises of the Borrower which are specifically  described  therein as subject
to the lien  thereof  and which are used or useful in the  conduct  of the South
Dakota  Utility  Business,  free from all prior liens,  charges or  encumbrances
(except to the  extent  that  enforceability  of such lien may be limited by the
effect of certain laws of the  jurisdictions  in which the  physical  properties
covered thereby are located upon the



                                       41




remedies  provided  in  such  Indenture  as  heretofore  supplemented  and to be
supplemented  by the South Dakota  Supplemental  Indenture,  which  limitations,
however, do not make the remedies afforded inadequate for the realization of the
security and benefits  provided by such Indenture,  and except as enforceability
of  such  lien  may  be  limited  by  bankruptcy,  insolvency,   reorganization,
moratorium or other similar laws affecting the enforcement of creditors' rights)
and the  after-acquired  property clause in such Indenture  subjects to the lien
thereof all  after-acquired  property of the South  Dakota  Utility  Business as
provided therein (except such thereof as is expressly  excepted from the lien of
such Indenture).

        (c) The South Dakota First Mortgage Indenture as heretofore supplemented
(including  any  necessary  related  financing  statements),  has been filed and
recorded  wherever and to the extent  necessary to perfect the lien thereof upon
the properties now owned by the Borrower and intended to be subject thereto; all
fees or taxes in  connection  therewith  have been  paid and no other  filing or
recordation  is  presently  necessary  in  order  to  perfect  the  lien of such
Indenture on such properties.

        (d) No filing or recording of the South Dakota Supplemental Indenture is
necessary to perfect the lien of the South Dakota First Mortgage  Indenture upon
the properties  now owned by the Borrower and intended to be subject  thereto or
to extend  such lien for the  benefit of the First  Mortgage  Bonds to be issued
thereunder;  no  re-recording  or  refiling  of  such  Indenture  or  any  other
instruments  or  documents   (except  for  periodic  filings  which  extend  the
effectiveness  of financing  statements) is required to preserve and protect the
lien of such  Indenture;  and under the present  laws of the States in which the
property  intended to be subject to the lien of such  Indenture  is located,  no
further  supplemental  indentures or other instruments or documents are required
to be executed,  filed and/or  recorded to extend the lien of such  Indenture to
after-acquired  property;  however, the Borrower is required by the terms of the
South Dakota  First  Mortgage  Indenture  to promptly  record and file the South
Dakota Supplemental Indenture.

        (e) The Borrower has good and marketable  title to all properties  owned
by it which are subject to the South Dakota First  Mortgage  Indenture,  subject
only (a) to the lien of such  Indenture,  (b) to Permitted  Liens (as defined in
such Indenture)  which are Permitted Liens hereunder and (c) to minor exceptions
and defects which do not, in the aggregate, materially interfere with the use by
the  Borrower  of such  properties  for the  purposes  for which  they are held,
materially  detract  from the value of said  properties  or in any  material way
impair the security afforded by such Indenture.

        3.25  Subsidiaries.  Set forth on Schedule  3.25 are all of the Material
Subsidiaries  of the Borrower,  which schedule  correctly sets forth,  as of the
date hereof,  the percentage  ownership (direct and indirect) of the Borrower in
each class of capital  stock or other  equity  interests of each of its Material
Subsidiaries  and also  identifies  the direct owner  thereof.  All  outstanding
shares of capital  stock of each  Subsidiary  of the  Borrower has been duly and
validly issued,  are fully paid and  non-assessable and have been issued free of
any preemptive  rights.  No Material  Subsidiary of the Borrower has outstanding
any securities convertible into or exchangeable for its Capital Stock or


                                       42




outstanding  any  right to  subscribe  for or to  purchase,  or any  options  or
warrants  for the  purchase  or, or any  agreement  providing  for the  issuance
(contingent  or  otherwise)  of or  any  calls,  commitments  or  claims  of any
character  relating to, its Capital Stock or any stock  appreciation  or similar
rights.

                        ARTICLE 4. CONDITIONS PRECEDENT

        4.1 Conditions to Closing Date.  The  commencement  of the  Availability
Period is subject to the satisfaction of the following conditions precedent:

        (a) Documents.  The Administrative Agent shall have received each of the
following  documents,  each of which shall be satisfactory to the Administrative
Agent (and to the extent specified below, to each Lender) in form and substance:

               (i)  Executed  Counterparts.  From each party  hereto and thereto
        either (i) multiple  counterparts  of this Agreement and the Syndication
        Letter,  signed  on  behalf  of  such  party  or (ii)  written  evidence
        satisfactory  to the  Administrative  Agent (which may include  telecopy
        transmission  of a  signed  signature  page  to this  Agreement  and the
        Syndication  Letter)  that such party has signed a  counterpart  of this
        Agreement and the Syndication Letter);

               (ii) Corporate Documents.  Such documents and certificates as the
        Administrative Agent or its counsel may reasonably request, certified as
        of the  Closing  Date as  complete  and  correct  copies  thereof by the
        Secretary or an Assistant Secretary of the Borrower, relating to (i) the
        organization,  existence  and good  standing of the  Borrower,  (ii) the
        authorization of the execution, delivery and performance by the Borrower
        of this Agreement,  and of the borrowings hereunder by the Borrower, and
        (iii) certificates as to the incumbency and signature of each individual
        signing this Agreement and any other agreement or document  contemplated
        hereby on behalf of the Borrower;

               (iii)   Financial   Statements.   Copies   of  (i)  the   audited
        consolidated  balance  sheets  of  the  Borrower  and  its  Consolidated
        Subsidiaries as of December 31, 2001, and the related audited  statement
        of earnings  and cash flows for the period  ending as of such date,  and
        (ii) the unaudited  consolidated  balance sheets of the Borrower and its
        Consolidated  Subsidiaries  as of September  30,  2002,  and the related
        unaudited  statement of earnings and cash flows for the period ending as
        of such date, and the related  unaudited  statement of earnings and cash
        flows for the period ending as of such date, respectively;

               (iv)  Indentures.  A  certified  copy of  each of the  Indentures
        (including any amendments and supplements thereto); and


                                       43




               (v) Other Documents.  Such other documents as the  Administrative
        Agent or any Lender or counsel to CSFB may reasonably request.

        (b) Consents,  Licenses and Approvals.  The  Administrative  Agent shall
have  received,  with  a  counterpart  for  each  Lender,  a  certificate  of  a
Responsible  Officer  of the  Borrower  (i)  attaching  copies of all  consents,
authorizations  and  filings  referred to in Schedule  3.4b,  including  without
limitation,  the  orders  of the  FERC  referred  to in item 1  thereof  and the
Borrower's  applications to the FERC for each such order, and (ii) stating that,
except as shown in Schedule  3.4b,  such  consents,  licenses and filings are in
full force and effect; and each such consent,  authorization and filing shall be
in form and substance satisfactory to the Administrative Agent. Without limiting
the foregoing, any consents, filings, approvals or notices set forth on Schedule
3.15  (or  which  are  necessary  or  advisable  as a  result  of the  facts  or
circumstances  set forth on such schedule)  shall have been obtained or made, as
applicable, shall be in full force and effect and shall be in form and substance
satisfactory to the Administrative Agent.

        (c)  Closing  Fees and  Expenses.  The  Administrative  Agent shall have
received  the  fees  to be  received  on the  Closing  Date  referred  to in the
Syndication  Letter  and  shall  have  received  reimbursement  of all costs and
expenses (including the fees and expenses of counsel to the Administrative Agent
to the extent invoiced).

        (d) Legal Opinions. The Administrative Agent shall have received, with a
counterpart  for each  Lender,  the  executed  legal  opinions of counsel to the
Borrower,  which  opinions  shall be  satisfactory  in form and substance to the
Administrative Agent.

        (e) Closing  Certificate.  The Administrative Agent shall have received,
with a  counterpart  for each  Lender,  a closing  certificate  of the  Borrower
substantially  in the  form of  Exhibit  C,  dated  as of the  Closing  Date and
satisfactory in form and substance to the Administrative Agent.

        (f) Insurance.  The  Administrative  Agent shall have received  evidence
satisfactory to it of the existence of the insurance required hereunder.

        (g)  Compliance   Certificate.   The  Administrative  Agent  shall  have
received,  with a counterpart for each Lender, a Compliance Certificate executed
by a Chief  Financial  Officer or  Treasurer  of the  Borrower,  dated as of the
Closing Date and satisfactory in form and substance to the Administrative Agent.

        (h) No Material  Adverse  Effect.  Since December 31, 2001,  there shall
have been no  development  or event  which,  singly or in the  aggregate,  could
reasonably be expected to have a Material Adverse Effect.

        (i) Pro Forma Financials.  The Administrative Agent shall have received,
with a copy for each  Lender,  pro  forma  balance  sheets  as of the end of the
fiscal quarter  immediately  preceding the Closing Date and pro forma statements
of operations and cash flows for the  immediately  preceding  fiscal year of the
Borrower and its  Consolidated  Subsidiaries  and for the period from the end of
such fiscal year to the end of the fiscal



                                       44




quarter  immediately  preceding  the  Closing  Date,  (i)  giving  effect to the
Transactions  and (ii)  demonstrating  that each of the financial  covenants set
forth in Section 6.1 would have been satisfied as at the end of such fiscal year
and at the end of each succeeding fiscal quarter ending on or before the Closing
Date, certified by the chief financial officer or treasurer of the Borrower.

        (j) Outside  Closing Date. The Closing Date shall have occurred and each
of conditions  precedent set forth in this Section 4.1 shall have been satisfied
on or prior to February 10, 2003.

        (k)  Representations  and Warranties.  Each of the  representations  and
warranties made by the Borrower in or pursuant to the Loan Documents  (except to
the extent  applicable  to an  earlier  date)  shall be true and  correct in all
material respects on and as of such date as if made on and as of such date (both
before and after  giving  effect to such  Transactions  as shall be  required to
occur on or prior to the Closing Date).

        (l) No Default.  No Default or Event of Default  shall have occurred and
be  continuing  on such date or after giving  effect to the  Transactions  to be
consummated on such date.

        (m) Additional  Matters.  All corporate and other  proceedings,  and all
documents,   instruments   and  other  legal  matters  in  connection  with  the
Transactions and the other transactions  contemplated by this Agreement, and the
other Loan Documents  shall be reasonably  satisfactory in form and substance to
the Administrative  Agent, and the Administrative Agent shall have received such
other  documents,  instruments  and legal  opinions  in respect of any aspect or
consequence of the Transactions and the other transactions  contemplated  hereby
or thereby as it shall reasonably request.

        4.2 Conditions to the Funding Date. The agreement of each Lender to make
any Loan is subject to the satisfaction of the following conditions precedent:

        (a)  Conditions to Closing Date.  Each of the  conditions  precedent set
forth in Section 4.1 shall have been satisfied or waived.

        (b) Notice of Borrowing.  The Administrative Agent shall have received a
Notice of Borrowing in compliance with the terms hereof.

        (c)  Representations  and Warranties.  Each of the  representations  and
warranties made by the Borrower in or pursuant to the Loan Documents  (except to
the extent  applicable  to an  earlier  date)  shall be true and  correct in all
material respects on and as of such date as if made on and as of such date (both
before and after giving effect to the making of the Loans).

        (d) No Default.  No Default or Event of Default  shall have occurred and
be continuing on such date or after giving effect to the making of the Loans.

        (e)  Funding  Fees and  Expenses.  The  Administrative  Agent shall have
received  the  fees  to be  received  on the  Funding  Date  referred  to in the
Syndication Letter



                                       45




and shall have received  reimbursement of all costs and expenses  (including the
fees  and  expenses  of  counsel  to the  Administrative  Agent  to  the  extent
invoiced).

        (f) Northwestern  Material Adverse Event. There shall not have occurred,
exist or become  known to CSFB any event,  condition  or change in or  affecting
NorthWestern,  or the Utility Business, that, singly or in the aggregate, in the
reasonable  judgment  of CSFB,  could  reasonably  be  expected  to  result in a
material  adverse  change in (a) the  business,  assets,  operations,  condition
(financial  or  otherwise)  or  prospects  of  the  Utility   Business,   or  of
NorthWestern  and its  Consolidated  Subsidiaries  taken as a whole,  or (b) the
validity or enforceability of any of the Loan Documents or the rights,  remedies
and benefits available to the parties thereunder.

        (g) Security Agreement. The Administrative Agent shall have received the
Security Agreement together with all documentation  necessary and appropriate to
convey (and confirm) a valid and perfected  first-priority  security interest in
the  Collateral,  as more  specifically  enumerated  in the Security  Agreement,
executed by a duly authorized officer of the Borrower.

        (h) Early Funding Date. If the Closing Date occurs on or before December
31, 2002,  then the  foregoing  conditions  precedent  shall have been met on or
before  January  3, 2003 (or such  later  date as the  Administrative  Agent may
designate in its sole  discretion) and if the Closing Date occurs after December
31, 2002,  then the foregoing  conditions  precedent  shall have been met on the
Closing Date (but in any event on or before February 10, 2003).

        (i) Additional  Matters.  All corporate and other  proceedings,  and all
documents,   instruments   and  other  legal  matters  in  connection  with  the
Transactions  (other than the with respect to the First Mortgage  Bonds) and the
other  transactions  contemplated by this Agreement and the other Loan Documents
shall be reasonably  satisfactory  in form and  substance to the  Administrative
Agent,  and the  Administrative  Agent shall have received such other documents,
instruments  and legal  opinions in respect of any aspect or  consequence of the
Transactions  and the other  transactions  contemplated  hereby or thereby as it
shall reasonably request.

It being  understood  that unless the conditions  precedent set forth in Section
4.3 have been met at such time,  all proceeds of the Loans shall be deposited on
the Funding Date into the Cash Collateral Account.

        4.3 Conditions to Cash Collateral  Release.  The release to the Borrower
of the proceeds of the Loans or, if  applicable,  of cash on deposit in the Cash
Collateral Account shall be subject to the following conditions precedent:

        (a)  Conditions to Funding Date.  Each of the  conditions  precedent set
forth in Section 4.2 shall have been satisfied or waived.

        (b)  Termination  of Existing  Credit  Agreement.  The  Existing  Credit
Agreement  shall have been  terminated  and all amounts  outstanding  thereunder
shall have



                                       46




been repaid in full and the liens granted  thereunder  shall have been released,
in each case pursuant to documentation  satisfactory to the Administrative Agent
and the Lenders).

        (c) Issuance of First Mortgage Bonds.  (i) All First Mortgage  Approvals
shall  have been  obtained  and  shall be in full  force  and  effect;  (ii) the
Supplemental  Indentures  shall  have  been  validly  authorized,  executed  and
delivered and the First  Mortgage Bonds  comprising  (x) an aggregate  principal
amount of $280 million in the case of the Montana First Mortgage Bonds,  and (y)
an  aggregate  principal  amount of $110 million in the case of the South Dakota
First Mortgage Bonds (or, if the aggregate principal amount of the Loans is less
than $390,000,000,  the respective pro rata portions  thereof),  shall have been
validly authorized,  executed and authenticated and validly issued and delivered
to the  Collateral  Agent (and copies  thereof shall have been delivered to each
Lender);  and (iii) the Administrative Agent and each Lender shall have received
(I) copies of all opinions,  certificates,  orders, consents and other documents
that are delivered to the trustees under the Indentures as conditions  precedent
to (or otherwise in connection  with) the issuance of the First  Mortgage  Bonds
under the  Indentures  (together  with, in the case of each such opinion that is
not addressed to the Collateral  Agent, a letter from the counsel rendering such
opinion to the effect  that the  Collateral  Agent is  entitled  to rely on such
opinion as if such opinion were addressed to the Collateral Agent),  (II) copies
of all First Mortgage Approvals and (III) such other opinions,  certificates and
documents  reasonably  related  to the  First  Mortgage  Bonds,  the  Indentures
(including the Supplemental  Indentures) and the liens and security interests of
the Indentures as the Administrative Agent shall have reasonably requested,  and
all of the foregoing documents  (including without limitation the First Mortgage
Approvals, the Supplemental Indentures and the First Mortgage Bonds) shall be in
form and substance  reasonably  satisfactory  to the  Administrative  Agent (and
consistent with the Syndication Letter).

        (d) Appraisals.  The delivery to the Administrative  Agent at least five
days prior to the Cash  Collateral  Release Date of a written  appraisal,  by an
appraiser and in form reasonably  satisfactory to the Administrative  Agent, (a)
in the case of the Montana First Mortgage Indenture,  dated within six months of
the Closing Date and covering the assets of the Borrower  subject to the lien of
the Montana  First  Mortgage  Indenture  and (b) in the case of the South Dakota
First  Mortgage  Indenture,  dated  within  thirty days of the Closing  Date and
covering  the assets of the  Borrower  subject  to the lien of the South  Dakota
First  Mortgage  Indenture,  in each case upon which  appraisals  Administrative
Agent and the Lenders may expressly rely.

        (e) No Default.  No Default or Event of Default  shall have occurred and
be continuing on such date or after giving effect to the making of the Loans.

        (f) Outside Cash Collateral  Release Date. The Cash  Collateral  Release
Date shall have  occurred and each of  conditions  set forth in this Section 4.2
shall have been satisfied on or prior to February 10, 2003.

Upon the  satisfaction  of the foregoing  conditions  precedent,  the Collateral
Agent shall release all of the Collateral then on deposit in the Cash Collateral
Account and, on behalf



                                       47




of the Borrower, shall apply the proceeds thereof first, to the repayment of any
obligations of the Borrower then outstanding under the Existing Credit Agreement
and  second,  thereafter  shall  disburse  the  remaining  proceeds to or at the
direction of the Borrower (and the Borrower and each Lender  hereby  consents to
the taking of such actions).

                        ARTICLE 5. AFFIRMATIVE COVENANTS

               The  Borrower  hereby  agrees  that  for  so  long  as any of the
Commitments  remains in effect,  any Note remains  outstanding and unpaid or any
Obligation is owing to any Lender,  the Collateral  Agent or the  Administrative
Agent  hereunder or under any other Loan Document,  the Borrower shall and shall
cause each of its Subsidiaries to:

        5.1 Financial Statements. Furnish to each Lender:

        (a) as soon as available,  but in any event within 90 days after the end
of each fiscal year of the Borrower, a copy of the consolidated balance sheet of
the Borrower and the  Consolidated  Subsidiaries  as at the end of such year and
the  related  consolidated  and  consolidating  statements  of income,  retained
earnings and cash flows for such year, setting forth in each case in comparative
form the figures as of the end of and for the previous year, reported on without
a "going concern" or like qualification or exception,  or qualification  arising
out of the scope of the audit,  by  Deloitte  & Touche LLP or other  independent
certified public accountants of nationally  recognized  standing;  provided that
the submission of the Borrower's report on Form 10-K shall satisfy the foregoing
requirements; and

        (b) as soon as available,  but in any event not later than 45 days after
the end of each quarterly  period for each of the fiscal quarters of each fiscal
year of the Borrower,  the unaudited  consolidated balance sheet of the Borrower
and the Consolidated  Subsidiaries as at the end of such quarter and the related
unaudited consolidated statements of income, retained earnings and cash flows of
the Borrower and the Subsidiaries for such quarter and the portion of the fiscal
year  through the end of such quarter and setting  forth the actual  figures for
the  corresponding  date or period in the previous year,  certified by the chief
financial  officer or treasurer  of the  Borrower as being fairly  stated in all
material respects (subject to normal year-end audit adjustments);  provided that
the submission of the Borrower's report on Form 10-Q shall satisfy the foregoing
requirements,

all such  financial  statements  shall be complete  and correct in all  material
respects and shall be prepared in reasonable  detail and in accordance with GAAP
applied  consistently  throughout the periods  reflected  therein and with prior
periods (except as approved by such accountants or officer,  as the case may be,
and disclosed therein).

        5.2 Certificates; Other Information. Furnish to each Lender:

        (a) concurrently with the delivery of the financial  statements referred
to in  Section  5.1(a),  a  certificate  of  the  independent  certified  public
accountants reporting on



                                       48




such  financial  statements  stating  that in making the  examination  necessary
therefor no knowledge was obtained of any Default or Event of Default, except as
specified in such certificate;

        (b) concurrently with the delivery of the financial  statements referred
to in Section  5.1(a) or (b), a compliance  certificate  of the chief  financial
officer or treasurer of the Borrower, in form and substance  satisfactory to the
Administrative Agent (the "Compliance  Certificate"),  (i) showing compliance by
the Borrower and the  Subsidiaries  with the covenants  contained in Section 6.1
and (ii) setting forth the description of any Reduction  Event occurring  during
such period and the aggregate  amount of Net Cash Proceeds  received during such
period with respect to any Reduction Event;

        (c) within 5  Business  Days  after the  filing  thereof,  copies of all
reports which the Borrower sends to any of its  stockholders,  and copies of all
registration  statements,  reports on Form 10-K,  Form 10-Q or Form 8-K (or,  in
each case, any successor form) and other material  reports which the Borrower or
any  Subsidiary  files with the SEC or any  successor or analogous  Governmental
Authority  (other than public  offerings of securities  under  employee  benefit
plans or dividend reinvestment plans);

        (d) within  five days after  either of Moody's or  Standard & Poor's has
raised or lowered its credit  rating of any of the First  Mortgage  Bonds or the
credit facility  evidenced by the Loan Documents a notice to the  Administrative
Agent as to such effect;

        (e)  concurrently  with the delivery  thereof or promptly  after receipt
thereof,  a copy of all  notices to the  trustee or the  Borrower  under  either
Indenture; and

        (f) promptly,  such  additional  financial and other  information as the
Administrative Agent or any Lender may from time to time reasonably request.

        5.3 Payment and  Performance  of  Obligations.  Perform in all respects,
material  to the  Borrower  and its  Subsidiaries  taken as a whole,  all of its
obligations under the terms of all material agreements,  indentures,  mortgages,
security  agreements  and other debt  instruments to which it is party or bound,
including,  without limitation, pay, discharge or otherwise satisfy at or before
maturity or before they become  delinquent,  as the case may be, all taxes, fees
or other charges  imposed on it or on any of its properties by any  Governmental
Authority  and all its other  obligations  of whatever  nature,  material to the
Borrower and its Subsidiaries taken as a whole,  except, in each case, where the
amount or validity thereof is currently being diligently contested in good faith
and reserves in conformity  with GAAP with respect thereto have been provided on
the books of the Borrower or any of its Subsidiaries, as the case may be.

        5.4  Maintenance  of Existence.  Renew and keep in full force and effect
its  corporate  existence,  take all  reasonable  action to maintain all rights,
privileges  and  franchises  necessary or desirable in the normal conduct of its
business  except to the extent  such  failure  to  maintain  could  not,  in the
aggregate,  reasonably be expected to have a Material  Adverse Effect and comply
with all Contractual Obligations and



                                       49




Requirements of Law except to the extent that failure to comply  therewith could
not, in the aggregate, reasonably be expected to have a Material Adverse Effect.

        5.5  Maintenance of Property;  Insurance.  Keep all property  useful and
necessary in its business in good working order and condition (ordinary wear and
tear, and casualties,  excepted),  maintain with financially sound and reputable
insurance  companies  insurance on all its property in at least such amounts and
against at least such risks as are usually  insured  against in the same general
area by companies engaged in the same or a similar business, and furnish to each
Lender,  upon request,  full information as to the insurance  carried  including
certified  copies of policies and  certificates  of insurance  from a recognized
insurance broker reasonably acceptable to the Required Lenders.

        5.6 Inspection of Property; Books and Records;  Discussions. Keep proper
books of records  and  accounts,  in which  full,  true and  correct  entries in
conformity  with GAAP and all  Requirements of Law shall be made of all dealings
and  transactions in relation to its business and  activities;  and permit after
reasonable notice  representatives of the Administrative  Agent or any Lender to
visit and inspect any of its  properties and examine and make abstracts from any
of its books and records at any  reasonable  time and as often as may reasonably
be desired,  and to discuss the business,  operations,  properties and financial
and other  condition  of the  Borrower  and each  Subsidiary  with  officers and
employees  of the  Borrower  and  such  Subsidiary  and with  their  independent
certified public accountants.

        5.7 Notices(a).  (a) Within 5 days after the Borrower knows with respect
to any  notice  under  clause  (i) or within 10 days with  respect  to any other
notice under this Section 5.7(a),  give notice to the  Administrative  Agent and
each Lender of:

               (i) the occurrence of any Default or Event of Default;

               (ii) any (i)  default or event of default  under any  Contractual
        Obligation  of the  Borrower  or any  Subsidiary,  or  (ii)  litigation,
        investigation  or  proceeding  which may exist at any time  between  the
        Borrower or any such Subsidiary and any Governmental Authority, which in
        either case,  if not cured or if adversely  determined,  as the case may
        be, could reasonably be expected to have a Material Adverse Effect;

               (iii) any  material  labor  dispute to which the  Borrower or any
        Subsidiary may become a party and which involves any group of employees,
        any strikes or walkouts  relating to any of its plants or facilities and
        the  expiration  or  termination  of any  labor  contract  to which  the
        Borrower or such  Subsidiary is a party or by which the Borrower or such
        Subsidiary is bound and which  dispute  could  reasonably be expected to
        have a Material Adverse Effect on the operations of the Borrower or such
        Subsidiary.

Each notice  pursuant to this Section shall be  accompanied  by a statement of a
Responsible  Officer setting forth details of the occurrence referred to therein
and stating



                                       50




what action the Borrower proposes to take with respect thereto. For the purposes
of this Section 5.7(a),  the Borrower shall be deemed to have knowledge when any
officer of the Borrower charged with  responsibility  for any matter that is the
subject of such notice  requirement  knows or should have known that such notice
was required.

        (b) At least  ten (10)  days  prior to such  event,  give  notice to the
Administrative  Agent and each Lender of the  occurrence of any Reduction  Event
(i) the Net Cash  Proceeds  of which are (or are  scheduled  to be) in excess of
$5,000,000 or (ii) together with any other  concurrent or prior  Reduction Event
for which notice has not been given hereunder the aggregate Net Cash Proceeds of
which are (or are scheduled to be) in excess of $10,000,000.

        5.8  Environmental  Laws(a).  (a) Comply and cause its  Subsidiaries  to
comply in all  material  respects  with all  applicable  Environmental  Laws and
obtain  and  comply  and cause its  Subsidiaries  to  obtain  and  comply in all
material  respects with and maintain and cause its  Subsidiaries to maintain any
and all licenses, approvals, notifications, registrations or permits required by
applicable  Environmental  Laws except to the extent that failure to do so could
not be reasonably expected to have a Material Adverse Effect.

        (b) Conduct and  complete  all  investigations,  studies,  sampling  and
testing,   and  all  remedial,   removal  and  other  actions   required   under
Environmental  Laws and promptly comply in all material respects with all lawful
orders and directives of all Governmental  Authorities  regarding  Environmental
Laws  except to the extent  that the same are being  contested  in good faith by
appropriate   proceedings  and  the  pendency  of  such  proceedings  could  not
reasonably be expected to have a Material Adverse Effect.

        (c) Defend,  indemnify and hold harmless the  Administrative  Agent, the
Collateral Agent and the Lenders,  and their respective  parents,  subsidiaries,
affiliates,  employees,  agents,  officers and  directors,  from and against any
claims, demands, penalties, fines, liabilities,  settlements, damages, costs and
expenses  of  whatever  kind  or  nature  (whether  arising  under  theories  of
negligence,  strict or  absolute  liability,  or  otherwise)  known or  unknown,
contingent or otherwise, arising out of, or in any way relating to the violation
of,  noncompliance  with  or  liability  under  any  Environmental  Laws in each
instance  occurring  at, or  involving  the  operation  of any  facility  by the
Borrower or its  Subsidiaries,  or arising out of, or relating to the operations
of the Borrower or any Subsidiary, or the Business or the Properties, applicable
to the  operations  of the  Borrower or any  Subsidiary  or the  Business or the
Properties,  or any orders,  requirements or demands of Governmental Authorities
related  thereto,  including,  without  limitation,  reasonable  attorney's  and
consultant's  fees,  investigation  and laboratory fees,  response costs,  court
costs and  litigation  expenses,  except to the extent that any of the foregoing
arise out of the gross  negligence  or willful  misconduct  of the party seeking
indemnification therefor. This indemnity shall continue in full force and effect
regardless of the termination of this Agreement.

        5.9  ERISA.  Establish,  maintain  and  operate  and  cause  each of its
Subsidiaries  to  establish,  maintain  and  operate  all Plans to comply in all
material  respects with the  applicable  provisions of ERISA,  the Code, and all
other applicable laws, and the



                                       51




regulations and  interpretations  thereunder and the respective  requirements of
the  governing  documents for such Plans except to the extent that failure to do
so could not reasonably be expected to have a Material Adverse Effect.

        5.10 Use of  Proceeds.  Use the  proceeds  of each  extension  of credit
hereunder solely for the purposes set forth in Section 3.16.

        5.11 Margin Stock.  Not permit the  aggregate  value of margin stock (as
defined in Regulation U) at any time owned or held by the Borrower or any of its
Subsidiaries  to exceed an amount equal to 25% of the value of all  consolidated
assets  subject at such time to any  "arrangement"  (as such term is used in the
definition of "indirectly secured" in Section 221.2 of Regulation U).

        5.12 Maintain Ownership of the Utility Business. (a) Maintain ownership,
directly (and not through any Subsidiary),  of all or  substantially  all of the
assets of the Utility  Business,  (b)  maintain  the Lien of the  Montana  First
Mortgage  Indenture  on all or  substantially  all of the assets of the  Montana
Utility  Business and (c)  maintain the Lien of the South Dakota First  Mortgage
Indenture on all or substantially  all of the assets of the South Dakota Utility
Business.

        5.13  Post-Closing  Matters(a) . (a) Amend this  Agreement and the other
Loan  Documents,  and execute such  additional  documents,  as may be reasonably
requested by the  Arranger,  after  consultation  with the Borrower and prior to
completion of the successful  syndication (as determined by the Arranger) of the
credit  facility  provided  hereby,  to make  such  changes  as may be  required
pursuant to the Syndication Letter if the Arranger  determines that such changes
are advisable to ensure the successful syndication thereof;

        (b)  Use  its  commercially  best  efforts  to  comply  with  all of the
conditions  precedent  set  forth in  Section  4.2 on or  before  the date  then
designated by the Administrative Agent as the Funding Date;

        (c) Use its commercially best efforts to (i) obtain all governmental and
regulatory  approvals  necessary  for the  Borrower  to issue (and  perform  its
obligations  under and in respect of) the First Mortgage  Bonds,  and (ii) issue
the First  Mortgage  Bonds to the  Collateral  Agent,  in each case, by the Cash
Collateral Release Date; and

        (d) Comply with the provisions of, and take such action  required by the
terms of, the  Syndication  Letter  relating  to the  syndication  of the credit
facility evidenced hereby.

        5.14 Credit Ratings.  Use commercially  reasonable  efforts to obtain as
soon as practicable (and in any event obtain no later than January 3, 2003), and
thereafter  to  maintain,  ratings by both  Moody's  and  Standard & Poor's with
respect to the credit  facility  provided  hereby (in each case,  on a pro forma
basis if prior to the issuance of the First Mortgage Bonds).


                                       52




        5.15 Excluded  Subsidiaries.  (i) Maintain,  and cause to be maintained,
the books and records and bank accounts of the Consolidated  Group separate from
the books and records and bank accounts of the Excluded Subsidiaries, and at all
times present the Excluded  Subsidiaries  to the public as separate and distinct
legal entities; (ii) maintain, and cause to be maintained,  financial statements
of the Excluded  Subsidiaries  separate  from those of the  Consolidated  Group;
(iii) cause the  Excluded  Subsidiaries  to hold title to any assets they own in
their own respective name, and deposit all of their respective funds in checking
accounts,  saving  accounts,  time deposits or  certificates of deposit in their
respective names or invest such funds in their respective  names; (iv) cause the
Excluded Subsidiaries to observe all corporate formalities under Requirements of
Law necessary to maintain their identity as entities  separate and distinct from
the  Consolidated  Group;  and (v) not  commingle  the assets of Borrower or any
Consolidated Subsidiary with assets of any Excluded Subsidiary.

                         ARTICLE 6. NEGATIVE COVENANTS

               The Borrower  hereby  agrees that for so long as the  Commitments
remain in effect,  any Note remains  outstanding and unpaid or any Obligation is
owing to any Lender, the Collateral Agent or the Administrative  Agent hereunder
or under any other Loan Document, the Borrower shall not:

        6.1 Financial  Covenants(a) . (a) Minimum Net Worth. Permit Net Worth on
the last day of any  fiscal  quarter  to be less than  $616,000,000  plus  fifty
percent (50%) of Net Income,  if positive,  for each fiscal quarter ending after
the Closing Date.

        (b) Total  Capitalization.  Permit the ratio (expressed as a percentage)
of Funded Debt to Total Capital on the last day of any fiscal  quarter to exceed
72.5%.

        (c) Utility Business EBITDA to Interest Expense.

(i)            Permit  the  ratio  of  (y)  Utility   Business   EBITDA  to  (z)
               Consolidated  Recourse Interest Expense, in each case on the last
               day of any fiscal  quarter of the Borrower for the period of four
               fiscal quarters then ending to be less than 1.40 to 1.00.

(ii)           Permit the ratio of (y) Montana  Utility  Business  EBITDA to (z)
               the  aggregate  amount  of  interest  expense  accrued  on  first
               mortgage  bonds under the Montana First  Mortgage  Indenture,  in
               each case on the last day of any fiscal  quarter of the  Borrower
               for the period of four  fiscal  quarters  then  ending to be less
               than 3.00 to 1.00.
(iii)          Permit the ratio of (y) South Dakota Utility  Business  EBITDA to
               (z) the  aggregate  amount of interest  expense  accrued on first
               mortgage bonds under the South Dakota First  Mortgage  Indenture,
               in  each  case  on the  last  day of any  fiscal  quarter  of the
               Borrower for the period of four fiscal quarters then ending to be
               less than 2.50 to 1.00.


                                       53




        (d) Funded Debt to Utility Business EBITDA.

               (i) Permit the ratio of (y) Funded Debt  outstanding  on the last
        day of any fiscal quarter to (z) Utility  Business EBITDA for the period
        of four  fiscal  quarters  then  ending,  to be more  than (1)  prior to
        January 1, 2004, 8.75 to 1.00, (2) for the period  commencing on January
        1, 2004 to and including  December 31, 2004,  8.25 to 1.00, and (iii) on
        and after January 1, 2005, 7.50 to 1.00.

               (ii) Permit the ratio of (y) the  aggregate  principal  amount of
        first mortgage bonds  outstanding  under the Montana First Mortgage Bond
        Indenture on the last day of any fiscal  quarter to (z) Montana  Utility
        Business EBITDA for the period of four fiscal  quarters then ending,  to
        be more than (1) prior to January  1, 2005,  4.25 to 1.00 and (2) on and
        after such date, 3.75 to 1.00.

               (iii) Permit the ratio of (y) the aggregate  principal  amount of
        first mortgage bonds  outstanding  under the South Dakota First Mortgage
        Bond Indenture on the last day of any fiscal quarter to (z) South Dakota
        Utility  Business  EBITDA for the period of four  fiscal  quarters  then
        ending,  to be more than (1) prior to January 1, 2005,  4.75 to 1.00 and
        (2) on and after such date, 4.25 to 1.00.

        6.2   Limitation  on  Fundamental   Changes.   Enter  into  any  merger,
consolidation  or  amalgamation,  or liquidate,  wind up or dissolve  itself (or
suffer any liquidation or dissolution), or convey, sell, lease, assign, transfer
or otherwise  dispose of, all or  substantially  all its  property,  business or
assets or all or substantially all of the mortgaged property under an Indenture,
acquire any Capital Stock of another Person, or acquire assets of another Person
(other than any Subsidiary having Non-Recourse Debt or any Excluded  Subsidiary)
constituting all or a material part of a business (or all or  substantially  all
of the  assets of such  Person),  except  any Person  (other  than any  Excluded
Subsidiary)  may be merged or  consolidated  with or into the  Borrower,  or the
Borrower may acquire  assets or Capital Stock of another  Person (other than any
Excluded  Subsidiary)  constituting all or a material part of a business (or all
or substantially all the assets of such Person),  in each case provided that (a)
the Borrower  shall be the  continuing or surviving  corporation,  (b) as of the
consummation  of, and after giving  effect to, such  transaction,  no Default or
Event of Default shall then exist, (c) the Borrower shall not acquire,  directly
or indirectly,  any Capital Stock or assets of an Excluded Subsidiary (except as
expressly  permitted  pursuant  to Section  6.8) nor any assets of a  Subsidiary
subject to a Lien  securing  Non-Recourse  Debt,  (d) such  transaction  relates
solely to the acquisition of domestic  regulated utility  businesses and assets,
(e) if the Borrower shall acquire Capital Stock of another  Person,  such Person
shall  thereupon be a  Subsidiary,  and (f) the  aggregate  principal  amount of
Indebtedness  incurred  or  assumed  by the  Borrower  and the  Subsidiaries  in
connection with such transaction  (together with the aggregate  principal amount
of Indebtedness of such acquired Person) shall not exceed sixty percent (60%) of
the lesser of the fair value or cost of such acquired assets (and, to the extent
such  Indebtedness  is  incurred  in  connection  with  such  transaction  or in
contemplation of



                                       54




such transaction,  such  Indebtedness  shall not have a scheduled  maturity,  or
require any principal payment, prior to six months after the Maturity Date).

        6.3 Limitation on Transactions  with Affiliates.  Except as described on
Schedule 6.3 and except for transactions providing services (including,  without
limitation,  group  purchases of equipment or energy) at cost to any Subsidiary,
enter into any transaction,  including,  without limitation, any purchase, sale,
lease  or  exchange  of  property  or the  rendering  of any  service,  with any
Affiliate  unless such  transaction  is upon fair and  reasonable  terms no less
favorable  to  the  Borrower  than  it  would  have  obtained  in  a  comparable
arm's-length transaction with a Person which is not an Affiliate.

        6.4 Limitation on Liens.  Create,  incur, assume or suffer to exist, and
shall not permit any Subsidiary to create, incur, assume or suffer to exist, any
Lien  upon any of its  properties,  assets  or  revenues,  whether  now owned or
hereafter acquired, except for Permitted Liens.

        6.5 Amendments of Organizational Documents.  Amend, modify or change its
articles of  incorporation or bylaws that could reasonably be expected to result
in a Material Adverse Effect.

        6.6 Limitation on Guarantee Obligations. Create, incur, assume or suffer
to exist, and shall not permit any Subsidiary to create, incur, assume or suffer
to exist, any Guarantee Obligation except:

        (a)  guarantees  of  obligations  to third  parties made in the ordinary
course of business in connection with relocation of employees of the Borrower or
any of its Subsidiaries;

        (b) Guarantee  Obligations  existing on the date hereof and described in
Schedule 6.6;

        (c) Guarantee Obligations which by their terms (either mandatorily or at
the  unfettered  option of the  Borrower)  are payable  solely in Capital  Stock
(other  than  Mandatory  Redeemable  Stock) of the  Borrower  provided  that the
Borrower agrees to cause any payment under any such outstanding obligation to be
made only in such Capital Stock; and

        (d) Guaranteed Obligations permitted pursuant to Section 6.10(j), 6.8(y)
or 6.8(z).

        6.7 Limitation on Sale of Assets. Convey, sell, lease, assign,  transfer
or  otherwise  dispose of, and shall not permit any  Subsidiary  (other than any
Special  Purpose  Subsidiary)  to  convey,  sell,  lease,  assign,  transfer  or
otherwise  dispose  of any of,  its  property,  business  or assets  (including,
without  limitation,  tax  benefits,  receivables  and  leasehold  interests but
excluding  the Capital  Stock of any Special  Purpose  Subsidiary),  whether now
owned or hereafter  acquired except (a) for the sale or other disposition of any
property  that,  in  the  reasonable  judgment  of  the  Borrower,   has  become
uneconomic,  obsolete  or worn out,  and which is  disposed  of in the  ordinary
course of business



                                       55




(provided that, to the extent applicable,  the Borrower shall have complied with
Section 6.16);  (b) for sales of inventory and receivables  made in the ordinary
course of business;  (c) that any  Subsidiary  of the Borrower may sell,  lease,
transfer  or  otherwise  dispose  of any or all of its  assets  (upon  voluntary
liquidation  or  otherwise)  to the  Borrower  or,  subject to Section  5.12,  a
Wholly-Owned  Subsidiary of the Borrower and any  Subsidiary of the Borrower may
sell or  otherwise  dispose of, or part with control of any or all of, the stock
of any Subsidiary to a  Wholly-Owned  Subsidiary of the Borrower or a Subsidiary
of the  Borrower  may merge with the  Borrower  (so long as the  Borrower is the
surviving corporation) or, subject to Section 5.12, another Subsidiary;  (d) for
fair  market  arm's-  length  sales  or  other   dispositions  of  the  Colstrip
transmission  system  (consisting of two 500kv transmission lines extending from
the Colstrip  generating  stations to an  interconnection  with Bonneville Power
Administration near Townsend,  Montana,  together with switchyard  facilities in
Colstrip and Broadview, Montana, and substation facilities in Colstrip, Montana,
and  certain  related  real  property  interests,  easements  and rights of way,
permits  and  appurtenances   that  permit  the   construction,   operation  and
maintenance  of the  Colstrip  transmission  lines) or the assets of, or Capital
Stock in,  Montana  Megawatts I, LLC and other  entities  formed for the Montana
First Megawatts  Project;  (e) for the sale or other disposition by the Borrower
or any of its  Subsidiaries of other assets  consummated  after the date hereof;
provided that (i) such sale or other disposition shall be made for fair value on
an arm's-length  basis,  (ii) the aggregate fair market value of all such assets
sold or disposed of under this clause (e) together  with assets sold or disposed
of under Section 6.11 shall not exceed 10% of the  consolidated  tangible assets
of the  Borrower  and its  Subsidiaries  as of the  Closing  Date and  (iii) the
Borrower shall comply with Section 2.6.

        6.8 Limitation on Investments,  Loans and Advances.  Make, and shall not
permit any Subsidiary to make, any advance, loan, extension of credit (excluding
Guarantee  Obligations  but including any payment by a guarantor  thereunder) or
capital  contribution  to, or purchase any stock,  bonds,  notes,  debentures or
other  securities  of, or make any other  investment  in, any Person (any of the
foregoing, an "Investment"), except:

        (a) extensions of trade credit in the ordinary course of business;

        (b)  Investments of the Borrower or any Subsidiary  existing on the date
hereof in any Subsidiary;

        (c)  Investments  of  the  Borrower  after  the  date  hereof  that  are
acquisitions permitted pursuant to and made in accordance with Section 6.2;

        (d) the Borrower and its  Subsidiaries  may invest in,  acquire and hold
Cash Equivalents;

        (e)  the  Borrower  or any of  its  Subsidiaries  may  make  travel  and
entertainment  advances,  relocation  loans and payroll advances in the ordinary
course of  business  to  officers  and  employees  of the  Borrower  or any such
Subsidiary;



                                       56




        (f)  Investments of the Borrower or any Subsidiary  existing on the date
hereof  and  described  in  Schedule  6.8  including,  without  limitation,  any
investment  in  an  Excluded  Subsidiary  and  the  receipt  of  any  additional
securities constituting payments in kind on such existing Investments;

        (g)  Investments in  obligations  arising out of bankruptcy of customers
and suppliers;

        (h)  Investments  arising  out of  non-cash  consideration  received  in
connection with sales of assets as permitted by Section 6.7;

        (i) Investments of the Borrower or any Subsidiary  after the date hereof
of not more than $10,000,000 in the aggregate in Subsidiaries; and

        (j) Investments permitted pursuant to clause (y) or (z) below;

provided that,  notwithstanding the foregoing, the Borrower shall not, and shall
not permit any Subsidiary to, make any Investment in any Excluded Subsidiary nor
create,  incur, assume or suffer to exist any Guarantee  Obligation with respect
to any Excluded Subsidiary, except:

               (x)  Investments or Guarantee  Obligations of the Borrower or any
Subsidiary  existing  on the date  hereof  in or with  respect  to any  Excluded
Subsidiary  described  in  Schedule  6.8  and  the  receipt  of  any  additional
securities constituting payments in kind on such existing investments;

               (y)  any  advance,   loan,   extension  of  credit  or  Guarantee
Obligations  of the Borrower or any Subsidiary to or for the benefit of Blue Dot
in an aggregate principal amount (whether  outstanding,  written down or written
off but net of any actual cash returns on capital) of not more than $25 million;
provided that such advance,  loan,  extension of credit or Guarantee  Obligation
shall  be used to  honor  Guarantee  Obligations,  for  working  capital,  or to
refinance  on a secured  basis  the  existing  secured  working  capital  credit
facility of Blue Dot; and

               (z)  Investments or Guarantee  Obligations of the Borrower or any
Subsidiary  in or for the benefit of Expanets in an aggregate  principal  amount
(whether outstanding,  written or written off but net of any actual cash returns
on capital) of not more than $75  million;  provided  that such  advance,  loan,
extension of credit or  Guarantee  Obligation  shall be used to honor  Guarantee
Obligations,  for  working  capital,  or to  refinance  on a  secured  basis the
existing secured working capital credit facility of Expanets.

        6.9 Limitation on Dividends and Stock  Repurchases.  Declare,  and shall
not permit any  Subsidiary to declare,  any dividends on any shares of any class
of Capital  Stock,  or make,  and shall not permit any  Subsidiary to make,  any
payment on account of, or set apart assets for a sinking or other analogous fund
for, the purchase, redemption,  retirement or other acquisition of any shares of
any class of Capital  Stock  (including  the  outstanding  Capital  Stock of the
Borrower), whether now or hereafter outstanding, or



                                       57




make any other  distribution in respect thereof,  either directly or indirectly,
whether in cash or  property  or in  obligations  of the  Borrower or any of its
Subsidiaries  (all of the  foregoing  being  referred  to herein as  "Restricted
Payments"); except that:

        (a)  Subsidiaries  may  pay  dividends  directly  or  indirectly  to the
Borrower or the other Subsidiaries which are directly or indirectly Wholly-Owned
by the Borrower;

        (b) any Subsidiary may redeem or repurchase  shares of its Capital Stock
to the extent required to do so pursuant to, and upon the terms provided in, any
put agreement existing on the date hereof between such Subsidiary and any holder
of such Capital Stock;  provided that if permitted pursuant to the terms of such
agreement,  the sole consideration for such Capital Stock shall be Capital Stock
(other than Mandatory Redeemable Stock) of the Borrower; and

        (c) the Borrower or any Subsidiary may make  Restricted  Payments (other
than  redemption or repurchase of Capital Stock with respect to such  agreements
existing  as of the date  hereof as set forth in  clause  (b)  above) on or with
respect to its Capital Stock so long as, after giving effect to such  Restricted
Payments,  no Default or Event of Default  shall have occurred and be continuing
or shall result therefrom.

        6.10 Limitation on Indebtedness or Mandatory  Redeemable Stock.  Create,
incur,  issue, assume or suffer to exist, and shall not permit any Subsidiary to
create,  incur,  issue, assume or suffer to exist, any Indebtedness or Mandatory
Redeemable Stock  (including any  Indebtedness or Mandatory  Redeemable Stock of
any of its Subsidiaries), except:

        (a)  Indebtedness  of the Borrower under this Agreement and the Existing
Credit Agreement;

        (b) Indebtedness  consisting of reimbursement  obligations under surety,
indemnity,  performance,  release and appeal  bonds and  guarantees  thereof and
letters of credit  required in the ordinary  course of business or in connection
with the enforcement of rights or claims of the Borrower or its Subsidiaries;

        (c)  Indebtedness  of Montana  Megawatts I, LLC (or any related  Special
Purpose  Subsidiary) in an aggregate  amount not to exceed  $200,000,000,  which
proceeds of such Indebtedness are used to finance construction and related costs
of the Montana First Megawatts project, so long as such Indebtedness constitutes
Non-Recourse  Debt  (except  to the extent  included  in the  amounts  permitted
pursuant to clause (j) below);

        (d) Non-Recourse Debt of any Subsidiary;

        (e) Indebtedness and Mandatory  Redeemable Stock outstanding on the date
hereof as set forth on Schedule 6.10 hereto;

        (f) Debt for Borrowed Money of the Borrower  evidenced by first mortgage
bonds under either Indenture  incurred after the date hereof;  provided that (i)
such  Indebtedness  refinances or replaces then outstanding first mortgage bonds
issued



                                       58




under such Indenture and so long as the principal  amount of the Indebtedness so
refinanced or replaced is not increased as a result thereof or (ii) the proceeds
of such  Indebtedness  are used solely to finance  Capital  Expenditures  of the
Borrower  with respect to assets  subject to the lien of such  Indenture  (which
Capital  Expenditures  are made or incurred after the date hereof) in accordance
with the terms of such  Indenture and so long as such first  mortgage  bonds are
issued on the basis of  Property  Additions  (as such  term is  defined  in such
Indenture) in compliance with such Indenture;

        (g)  Debt  for  Borrowed  Money  of the  Borrower  secured  by  accounts
receivable  or inventory of the Borrower in an aggregate  outstanding  principal
amount not to exceed $75 million at any one time;

        (h) Debt of Money  Borrowed  incurred  or assumed in  connection  with a
transaction   expressly   permitted  pursuant  to  Section  6.2;  provided  such
Indebtedness complies with the terms of clause (f) of Section 6.2;

        (i) refinancings,  replacements and extensions by the obligor thereof of
any Debt for Borrowed Money under clause (c), (d), (e), (f) or (h) above so long
as (i) the principal of the Debt for Borrowed Money so  refinanced,  replaced or
extended  is  not  increased  as a  result  thereof,  (ii)  in the  case  of any
refinancing or replacement of  Non-Recourse  Debt,  after giving effect thereto,
such  Indebtedness  constitutes  Non-Recourse  Debt,  (iii)  in the  case of any
refinancing or replacement of secured Indebtedness, after giving effect thereto,
the Lien  (other  than the Lien of an  Indenture)  with  respect  thereto is not
extended  to any  other  assets,  and  (iv) in the  case of any  refinancing  or
replacement  of  unsecured  Indebtedness,  after  giving  effect  thereto,  such
Indebtedness remains unsecured; and

        (j)  Indebtedness  not otherwise  permitted by the preceding  clauses of
this Section 6.10 not exceeding $50 million in aggregate principal amount at any
one time outstanding  which  Indebtedness  shall not be secured by a Lien on any
assets of the  Borrower  (and which may include  Guaranteed  Obligations  of the
Borrower with respect to Indebtedness of a Subsidiary);

provided that,  notwithstanding the foregoing, (y) the Borrower shall not incur,
issue or assume any Debt for Borrowed Money or Mandatory  Redeemable Stock after
the date hereof pursuant to clauses (f), (h) (to the extent required pursuant to
Section  6.2),  or (i) above which has a  scheduled  maturity,  or requires  any
principal payment, prior to six months after the Maturity Date and (z) until the
earlier of April 11,  2003 and  completion  of the  successful  syndication  (as
determined by the Arranger) of the credit facility provided hereby, the Borrower
shall not enter into or seek to arrange any commercial  bank facilities or issue
any  debt  securities  in a  manner  inconsistent  with  the  provisions  of the
Syndication Letter.

        6.11 Limitation on Sales and Leasebacks. Enter into any arrangement with
any  Person  providing  for the  leasing  by the  Borrower  of real or  personal
property, in an aggregate amount for all such property together with assets sold
or disposed of under Section 6.7(e) exceeding 10% of the  consolidated  tangible
assets of the Borrower and its



                                       59




Subsidiaries  as of the  Closing  Date,  which  has  been  or is to be  sold  or
transferred  by the Borrower to such Person or to any other Person to whom funds
have been or are to be advanced by such Person on the security of such  property
or rental obligations of the Borrower.

        6.12 Limitation on Negative Pledge Clauses; Payment Restrictions.  Enter
into or suffer to exist,  and shall not permit any  Subsidiary  to enter into or
suffer to exist,  any agreement or other  consensual  encumbrance or restriction
which prohibits or limits the ability of the Borrower or any of its Subsidiaries
to create,  incur,  assume or suffer to exist any Lien upon any of its property,
assets or  revenues,  whether now owned or hereafter  acquired,  or prohibits or
limits the  ability of the  Borrower or any of its  Subsidiaries  to make loans,
payments  or  dividends  to or  investments  in, or to  transfer  assets to, the
Borrower  or any  of its  Subsidiaries,  other  than  (a)  any  such  agreement,
encumbrance or restriction contained in this Agreement,  the Security Agreement,
the  Indentures  or the  Bond  Collateral  Agreement,  (b) any  such  agreement,
encumbrance or  restriction  (including  any negative  pledge)  contained in any
industrial  revenue bonds,  purchase  money  mortgages,  development  financing,
operating  leases entered into in the ordinary  course of business,  acquisition
agreements or Financing  Leases,  in each case  permitted by this  Agreement (in
which cases, any prohibition or limitation  shall only be effective  against the
assets  financed,   acquired  or  leased  thereby),   (c)  any  such  agreement,
encumbrance  or restriction  contained in any loan agreement or other  financing
document  entered into with respect to Debt for Borrowed  Money of  Subsidiaries
(other than  industrial  revenue bonds,  purchase money  mortgages,  development
financing or  Financing  Leases)  permitted  to be incurred  pursuant to Section
6.10, or (d) customary  provisions in any contract  entered into in the ordinary
course of business (including any licensing  agreement,  management agreement or
franchise agreement) restricting assignments of such contract.

        6.13  Limitation  on  Businesses.  Enter into or engage in any business,
either  directly or through any  Subsidiary,  except for  businesses of the same
general type as those in which the Borrower and its  Subsidiaries are engaged on
the date hereof or other business activities reasonably incidental or related to
any of the foregoing.

        6.14  Limitation on Certain  Prepayments  and  Amendments.  (a) Make any
optional payment or prepayment on or redemption,  defeasance or purchase of such
Person's  Debt for Borrowed  Money (other than with respect to (i)  Indebtedness
hereunder or under the First Mortgage Bonds, (ii) any Indebtedness to the extent
such  Indebtedness  by the terms  thereof  would  otherwise  have become due and
payable within three months of such payment, redemption, defeasance or purchase,
(iii) any  refinancing or replacement of such  Indebtedness  in accordance  with
Section 6.10,  or (iv)  prepayments  of Debt for Borrowed  Money in an aggregate
principal  amount  not to  exceed  the  aggregate  principal  amount of Net Cash
Proceeds  of  Reduction  Events  offered  to the  Lenders  but not  accepted  as
prepayments  of the Loans  pursuant  to Section  2.6),  or (b) amend,  modify or
change, or consent to any amendment,  modification or change to any of the terms
relating to the payment or  prepayment  of principal of or interest on, any such
Indebtedness,  other than any  amendment,  modification  or change  which  would
extend  the  maturity  or reduce  the amount of any  payment  or  prepayment  of
principal



                                       60




thereof  or which  would  reduce  the rate or  extend  the date for  payment  of
interest thereon or which would not be adverse to the Lenders.

        6.15  Limitations  on  Subsidiaries'   Equity   Interests.   Permit  any
Subsidiary to issue any preferred  Capital Stock or any redeemable  common stock
other than (a)  issuances  of  preferred  Capital  Stock in payment of regularly
accruing  dividends on theretofore  outstanding shares of such preferred Capital
Stock,  (b)  issuances  of  preferred  Capital  Stock  issued to and, so long as
thereafter outstanding,  held by the Borrower and (c) issuances in consideration
of  acquisitions  permitted  under Section 6.8 of preferred  Capital Stock which
ranks  junior,  as to the payment of  dividends  and as to the  distribution  of
assets upon any liquidation,  dissolution or winding up of such  Subsidiary,  to
all preferred Capital Stock held by the Borrower in such Subsidiary.

        6.16 Limitation on Release of Mortgaged Property;  Limitation in Respect
of Insurance.  Release Mortgaged and Pledged Property (as defined in the Montana
First Mortgage  Indenture) from the lien of the Montana First Mortgage Indenture
or Mortgaged Property (as defined in the South Dakota First Mortgage  Indenture)
from the lien of the South  Dakota  First  Mortgage  Indenture,  other  than (i)
releases of such  Mortgaged and Pledged  Property  pursuant to and in accordance
with Sections 58 and 60 of the Montana First Mortgage  Indenture;  (ii) releases
of such Mortgaged  Property  pursuant to and in accordance  with Section 8.02 of
the South Dakota First Mortgage  Indenture other than clause (f) thereof;  (iii)
releases of property or other  assets that are  disposed of in  accordance  with
Section 6.7(d) or (e) and, if in connection  with any such  disposition  and the
related release,  the Borrower deposits with the trustee under an Indenture cash
that  would  otherwise  constitute  Net Cash  Proceeds,  releases  of such  cash
pursuant to and in accordance with such Indenture; and (iv) releases of proceeds
of  insurance  (and/or  moneys of the  Borrower  in lieu  thereof or in addition
thereto and for the purposes  thereof) held under either Indenture in accordance
with such  Indenture  which  reimburse  the  Borrower  for amounts  spent in the
rebuilding  or renewal of  property  destroyed  or damaged  (including,  without
limitation,  for property  rebuilt,  restored or replaced) and, if following the
completion of any such  rebuilding or renewal,  any of such  insurance  proceeds
(and/or such moneys of the Borrower)  remain  unspent,  releases of such unspent
proceeds  (and/or  such  unspent  money  of  the  Borrower)  pursuant  to and in
accordance with such Indenture;  provided,  however, that the Borrower shall not
request or receive any proceeds of any insurance or of any alternative method or
plan of protection of the Borrower relating to such Mortgaged Property otherwise
payable to it pursuant to Section  6.07(b) of the South  Dakota  First  Mortgage
Indenture,  and so long as any First Mortgage Bonds are  outstanding,  no effect
shall be  given to (x)  Section  6.07(b)  of the  South  Dakota  First  Mortgage
Indenture,  (y) the  language  in  Section  6.07(c)  of the South  Dakota  First
Mortgage  Indenture  which  precedes  clause  (i) of  such  Section,  or (z) the
reference to Section 6.07(b) of the South Dakota First Mortgage  Indenture which
appears in Section 6.07(d) of the South Dakota First Mortgage Indenture.

        6.17  Limitation on  Subjecting  Property or Other Assets to the Lien of
the Other  Indenture.  Subject any  property or other  assets to the lien of the
Montana First Mortgage  Indenture or the lien of the South Dakota First Mortgage
Indenture if such  property or other assets are subject to the lien of the other
Indenture.



                                       61




        6.18  Prohibition  on  Designating  Class "A"  Mortgages  or  Permitting
Qualified Lien Bonds to Exist.  Designate any Class "A" Mortgage under the South
Dakota  First  Mortgage  Indenture or permit any  Qualified  Lien Bonds to exist
under the Montana First Mortgage Indenture.

        6.19 Limitation on Amendments or Supplements to the  Indentures.  Amend,
modify or supplement  the Montana First  Mortgage  Indenture or the South Dakota
First Mortgage  Indenture,  except to (a) supplement such Indenture to establish
the terms of any series of first mortgage bonds to be issued thereunder that are
permitted to be issued  under  Section  6.10(f),  (b) amend or  supplement  such
Indenture for the purpose of conveying, transferring or assigning to the trustee
thereunder  additional  property for the purpose of subjecting  such property to
the lien of such  Indenture,  subject to the terms of Section 6.17, or (c) amend
or  supplement  such  Indenture,  in the  case  of the  Montana  First  Mortgage
Indenture,  pursuant to and as  permitted by Section 120 thereof or, in the case
of the South  Dakota  First  Mortgage  Indenture,  pursuant  and as permitted by
Section  14.01  thereof,  provided  that in each  such case  such  amendment  or
supplement will not adversely affect the First Mortgage Bonds.

        6.20  Prohibition on Second  Mortgage  Bonds.  Issue any bonds (or other
Debt for Borrowed  Money) that is secured by a lien  (subordinate to the lien of
either  Indenture)  on the property or other assets  subject to the lien of such
Indenture. ARTICLE 7. EVENTS OF DEFAULT

        7.1 Events of Default. If any of the following events shall occur and be
continuing:

        (a) The Borrower shall fail to pay any principal of any Loan when due in
accordance with the terms hereof; or the Borrower shall fail to pay any interest
on any Loan, or any fee or any other amount payable  hereunder or any other Loan
Document,  within  three (3) days after any such  interest,  fee or other amount
becomes due in accordance with the terms thereof or hereof; or

        (b) Any  representation  or warranty made or deemed made by the Borrower
herein or in any other Loan  Document or which is contained in any  certificate,
document or financial or other statement furnished by it at any time under or in
connection  with this  Agreement or any such other Loan Document  shall prove to
have been incorrect in any material  respect on or as of the date made or deemed
made; or

        (c) The Borrower  shall default in the  observance or performance of any
agreement contained in Article 6 (other than Section 6.12) or Section 5.7; or

        (d) The Borrower  shall default in the  observance or performance of any
other agreement contained in this Agreement or any other Loan Document, and such
default shall continue unremedied for a period of 30 days; or



                                       62




        (e) The  Borrower or any  Material  Subsidiary  shall (A) default in any
payment  (regardless of amount) of principal of, premium, if any, or interest on
any Indebtedness  having an aggregate  principal amount in excess of $30,000,000
(other  than the Notes)  beyond the period of grace (not to exceed 30 days),  if
any,  provided in the instrument or agreement under which such  Indebtedness was
created or (B) default in the observance or  performance of any other  agreement
or condition relating to any such Indebtedness or contained in any instrument or
agreement  evidencing,  securing or relating  thereto,  or any other event shall
occur or  condition  exist,  the  effect  of  which  default  or other  event or
condition is to cause,  or to permit the holder or holders of such  Indebtedness
(or a trustee or agent on behalf of such  holder or holders  or  beneficiary  or
beneficiaries)  to  cause,  with  the  giving  of  notice,  if  required,   such
Indebtedness to become due prior to its stated maturity;  provided that any such
default by the Borrower or any Material  Subsidiary under Non-Recourse Debt will
not  constitute  an Event of Default  unless such  default  also  constitutes  a
default under other recourse  Indebtedness of the Borrower or such Subsidiary in
an aggregate outstanding principal amount of $30,000,000 or more; or

        (f) (i) The Borrower or any Material Subsidiary shall commence any case,
proceeding  or  other  action  (A)  under  any  existing  or  future  law of any
jurisdiction,   domestic  or  foreign,   relating  to  bankruptcy,   insolvency,
reorganization or relief of debtors, seeking to have an order for relief entered
with  respect to it, or seeking to  adjudicate  it a bankrupt or  insolvent,  or
seeking  reorganization,   arrangement,   adjustment,  winding-up,  liquidation,
dissolution, composition or other relief with respect to it or its debts, or (B)
seeking  appointment  of a receiver,  trustee,  custodian,  conservator or other
similar official for it or for all or any substantial part of its assets, or the
Borrower or any such Subsidiary shall make a general  assignment for the benefit
of its creditors;  or (ii) there shall be commenced  against the Borrower or any
such Subsidiary any case,  proceeding or other action of a nature referred to in
clause  (i) above  which (A)  results in the entry of an order for relief or any
such  adjudication  or appointment or (B) remains  undismissed,  undischarged or
un-bonded for a period of 60 days; or (iii) there shall be commenced against the
Borrower or any such  Subsidiary  any case,  proceeding or other action  seeking
issuance of a warrant of  attachment,  execution,  distrait  or similar  process
against all or any substantial  part of its assets which results in the entry of
an order for any such relief which shall not have been vacated,  discharged,  or
stayed or bonded pending  appeal within 60 days from the entry thereof;  or (iv)
the Borrower or any such Subsidiary  shall take any action in furtherance of, or
indicating its consent to, approval of, or acquiescence  in, any of the acts set
forth in clause  (i),  (ii),  or (iii)  above;  or (v) the  Borrower or any such
Subsidiary shall generally not, or shall be unable to, or shall admit in writing
its inability to, pay its debts as they become due; or

        (g) (i) Any Person  shall  engage in any  "prohibited  transaction"  (as
defined in Section 406 of ERISA or Section 4975 of the Code) involving any Plan,
(ii) any "accumulated  funding deficiency" (as defined in Section 302 of ERISA),
whether or not waived,  shall exist with respect to any Pension Plan or any Lien
in favor of the PBGC or a Plan shall  arise on the assets of the  Borrower,  any
Subsidiary or any Commonly  Controlled  Entity,  (iii) a Reportable  Event shall
occur  with  respect  to,  or  proceedings  shall  commence  to  have a  trustee
appointed, or a trustee shall be appointed, to administer



                                       63




or to terminate,  any Pension Plan,  which  Reportable  Event or commencement of
proceedings or  appointment  of a trustee is, in the  reasonable  opinion of the
Required Lenders,  likely to result in the termination of such plan for purposes
of Title IV of ERISA,  (iv) any Pension  Plan shall  terminate  for  purposes of
Title IV of ERISA, (v) the Borrower,  any Subsidiary or any Commonly  Controlled
Entity shall, or in the reasonable opinion of the Required Lenders is likely to,
incur any liability in connection  with a withdrawal  from, or the Insolvency or
Reorganization  of, a  Multiemployer  Plan or (vi) any other event or  condition
shall occur or exist with respect to a Pension Plan; and in each case in clauses
(i) through (vi) above,  such event or  condition,  together with all other such
events or conditions,  if any,  could  reasonably be expected to have a Material
Adverse Effect; or

        (h) One or more  judgments  or  decrees  shall be  entered  against  the
Borrower or any Subsidiary involving in the aggregate a liability (to the extent
not covered by  third-party  insurance as to which the insurer has  acknowledged
coverage) of $30,000,000  or more and sufficient  judgments or decrees shall not
have been vacated,  discharged,  stayed or bonded  pending appeal within 30 days
from the entry thereof to reduce such amount to less than $30,000,000; or

        (i) (x) The Security Agreement,  the Bond Collateral  Agreement,  either
Indenture or either Supplemental Indenture shall cease, for any reason, to be in
full force and effect,  other than pursuant to the terms thereof and hereof, (y)
the Lien created thereby shall cease to be enforceable and of the same effect as
to perfection and priority  purported to be created  thereby with respect to any
significant  portion of the collateral  thereunder,  or (z) there shall occur an
"Event of Default" under either Indenture; or

        (j) A Change of Control shall occur;

then, and in any such event, (A) if such event is an Event of Default  specified
in clause  (i) or (ii) of  paragraph  (f) above with  respect  to the  Borrower,
automatically  the  Commitments  shall  immediately   terminate  and  the  Loans
hereunder (with accrued interest thereon) and all other amounts owing under this
Agreement  and the Notes shall  immediately  become due and payable,  and (B) if
such  event is any  other  Event of  Default,  either  or both of the  following
actions  may be  taken:  (i) with  the  consent  of the  Required  Lenders,  the
Administrative Agent may, by notice to the Borrower,  declare the Commitments to
be terminated forthwith,  whereupon the Commitments shall immediately terminate;
and (ii) with the consent of the Required Lenders, the Administrative Agent may,
or upon the request of the Required Lenders the  Administrative  Agent shall, by
notice to the Borrower,  declare the Loans hereunder and the Notes to be due and
payable forthwith,  whereupon the same shall immediately become due and payable.
Except as expressly provided above in this Section, presentment, demand, protest
and all other notices of any kind are hereby expressly waived.



                                       64




                             ARTICLE 8. THE AGENTS

        8.1 Appointment.  Each Lender hereby irrevocably designates and appoints
CSFB as  Administrative  Agent and as  Collateral  Agent (for  purposes  of this
Article  8,  collectively,  the  "Agents"),  and to act as its agent  under this
Agreement and the other Loan Documents.  Each such Lender irrevocably authorizes
each  Agent,  to take such  action on its behalf  under the  provisions  of this
Agreement  and the other Loan  Documents and to exercise such powers and perform
such  duties  as are  expressly  delegated  to each  Agent by the  terms of this
Agreement and the other Loan  Documents,  together with such other powers as are
reasonably  incidental thereto.  Each Lender further authorizes and directs each
Agent to execute and deliver releases (or similar  agreements) to give effect to
the  provisions  of this  Agreement  and the  other  Loan  Documents,  including
specifically,   without  limitation,  the  provisions  of  Section  6.7  hereof.
Notwithstanding  any provision to the contrary  elsewhere in this Agreement,  no
Agent shall have any duties or  responsibilities,  except  those  expressly  set
forth herein or in therein,  or any fiduciary  relationship with any Lender, and
no  implied  covenants,  functions,  responsibilities,  duties,  obligations  or
liabilities  shall be read into this  Agreement  or any other Loan  Document  or
otherwise  exist against  either Agent.  Without  limiting the generality of the
foregoing,  the Agents are hereby  expressly  authorized  to execute any and all
documents  (including releases) with respect to the Collateral and the rights of
the Secured Parties with respect  thereto,  as contemplated by and in accordance
with the  provisions  of this  Agreement,  the Security  Agreement  and the Bond
Collateral Agreement.

        8.2 Delegation of Duties. Each Agent may execute any of its duties under
this   Agreement  and  the  other  Loan   Documents  by  or  through  agents  or
attorneys-in-fact  and shall be  entitled  to advice of counsel  concerning  all
matters  pertaining  to such  duties.  No  Agent  shall be  responsible  for the
negligence or misconduct of any agents or attorneys-in-fact  selected by it with
reasonable care.

        8.3 Exculpatory Provisions. No Agent nor any of its officers, directors,
employees,  agents,  attorneys-in-fact or Affiliates shall be (i) liable for any
action  lawfully  taken or omitted to be taken by it or such Person  under or in
connection  with this  Agreement or any other Loan Document  (except for its own
gross negligence or willful misconduct) or (ii) responsible in any manner to any
of the Lenders for any recitals, statements, representations or warranties, made
by the Borrower or any officer or any of them contained in this Agreement or any
other Loan Document or in any certificate,  report,  statement or other document
referred  to or  provided  for in,  or  received  by  either  Agent  under or in
connection  with,  this  Agreement or any other Loan  Document or for the value,
validity,  effectiveness,  genuineness,  enforceability  or  sufficiency of this
Agreement  or the Notes or any other  Loan  Document  or for any  failure of the
Borrower to perform its obligations  hereunder or thereunder.  No Agent shall be
under  any  obligation  to any  Lender  to  ascertain  or to  inquire  as to the
observance or performance  of any of the agreements  contained in, or conditions
of, this  Agreement or any other Loan  Document,  or to inspect the  properties,
books or records of the Borrower, any Subsidiary or any Excluded Subsidiary.



                                       65




        8.4 Reliance by Agents.  Each Agent shall be entitled to rely, and shall
be fully  protected  in relying,  upon any Note,  writing,  resolution,  notice,
consent,  certificate,  affidavit,  letter, telecopy, telex or teletype message,
statement,  order or other document or conversation believed by it to be genuine
and  correct  and to have  been  signed,  sent or made by the  proper  Person or
Persons and upon advice and  statements  of legal  counsel  (including,  without
limitation, counsel to the Borrower),  independent accountants and other experts
selected by such  Agent.  Each Agent may deem and treat the payee of any Note or
any loan account in the Register as the owner thereof for all purposes  unless a
written  notice of assignment,  negotiation or transfer  thereof shall have been
filed with the  Administrative  Agent.  Each Agent shall be fully  justified  in
failing or refusing to take any action  under this  Agreement  or any other Loan
Document  unless  it shall  first  receive  such  advice or  concurrence  of the
Required Lenders as it deems appropriate or it shall first be indemnified to its
satisfaction  by the Lenders against any and all liability and expense which may
be incurred  by it by reason of taking or  continuing  to take any such  action.
Each Agent shall in all cases be fully  protected  in acting,  or in  refraining
from acting,  under this  Agreement,  the Notes and the other Loan  Documents in
accordance  with a request of the  Required  Lenders,  and such  request and any
action  taken or failure to act pursuant  thereto  shall be binding upon all the
Lenders and all future holders of the amounts owing hereunder.

        8.5 Notice of  Default.  No Agent shall be deemed to have  knowledge  or
notice of the  occurrence  of any Default or Event of Default  unless such Agent
has received  notice from a Lender or the Borrower  referring to this Agreement,
describing  such  Default or Event of Default and stating  that such notice is a
"notice of default".  In the event that the Administrative Agent receives such a
notice, the Administrative Agent shall give notice thereof to the Lenders.  Each
Agent shall take such action with respect to such Default or Event of Default as
shall be reasonably  directed by the Required Lenders;  provided that unless and
until such Agent shall have received such directions,  such Agent may (but shall
not be obligated to) take such action, or refrain from taking such action,  with
respect to such  Default or Event of Default as it shall deem  advisable  in the
best interests of the Lenders.

        8.6  Non-Reliance  on Agents and Other  Lenders.  Each Lender  expressly
acknowledges  that no  Agent  nor  any of its  officers,  directors,  employees,
agents,   attorneys-in-fact  or  Affiliates  has  made  any  representations  or
warranties to it and that no act by either Agent hereafter taken,  including any
review  of the  affairs  of the  Borrower,  shall be deemed  to  constitute  any
representation or warranty by either Agent to any Lender. Each Lender represents
to each Agent that it has,  independently and without reliance upon either Agent
or any other  Lender,  and based on such  documents  and  information  as it has
deemed  appropriate,  made  its own  appraisal  of and  investigation  into  the
business,   operations,    property,   financial   and   other   condition   and
creditworthiness  of the  Borrower  and made its own  decision to make its Loans
hereunder and enter into this  Agreement.  Each Lender also  represents  that it
will,  independently and without reliance upon either Agent or any other Lender,
and based on such documents and information as it shall deem  appropriate at the
time,  continue to make its own credit  analysis,  appraisals  and  decisions in
taking or not taking action under this  Agreement and the other Loan  Documents,
and to make such investigation as it deems necessary to



                                       66




inform  itself as to the  business,  operations,  property,  financial and other
condition and creditworthiness of the Borrower.  Except for notices, reports and
other  documents  expressly  required  to be  furnished  to the  Lenders  by the
Administrative  Agent hereunder or furnished to the Administrative Agent for the
account of, or with a counterpart or copy for, each Lender,  no Agent shall have
any duty or  responsibility  to  provide  any  Lender  with any  credit or other
information concerning the business, operations,  property, condition (financial
or  otherwise),  prospects  or  creditworthiness  of  the  Borrower,  any of its
Subsidiaries  or any Excluded  Subsidiary  which may come into the possession of
either   Agent  or  any  of  its   officers,   directors,   employees,   agents,
attorneys-in-fact or Affiliates.

        8.7  Indemnification.  The Lenders agree to indemnify  each Agent in its
capacity  as such (to the extent not  reimbursed  by the  Borrower  and  without
limiting  the  obligation  of  the  Borrower  to do  so)  and  their  respective
directors, officers, employees and agents, ratably according to their respective
Commitment  Percentages in effect on the date on which indemnification is sought
under this Section (or, if  indemnification  is sought after the date upon which
the  Commitments  shall have  terminated  and the Loans  shall have been paid in
full, ratably in accordance with their Commitment Percentages  immediately prior
to such date),  from and against any and all liabilities,  obligations,  losses,
damages, penalties,  actions, judgments, suits, costs, expenses or disbursements
of any kind whatsoever which may at any time (including,  without limitation, at
any time  following the payment of all amounts  owing  hereunder) be imposed on,
incurred by or asserted against such Agent in any way relating to or arising out
of this Agreement, any of the other Loan Documents or any documents contemplated
by or referred to herein or therein or the transactions  contemplated  hereby or
thereby or any action taken or omitted by such Agent under or in connection with
any of the foregoing; provided that no Lender shall be liable for the payment of
any  portion  of such  liabilities,  obligations,  losses,  damages,  penalties,
actions,  judgments,  suits, costs,  expenses or disbursements  resulting solely
from such Agent's gross negligence or willful misconduct. The agreements in this
Section shall survive the payment of the Obligations hereunder.

        8.8 Agent in Its Individual Capacity.  Each Agent and its Affiliates may
make loans to, accept deposits from and generally engage in any kind of business
with the Borrower,  any  Subsidiary  and any Excluded  Subsidiary as though such
Agent  were not an Agent  hereunder  and under the other  Loan  Documents.  With
respect to Loans made or  renewed  by it and any Note  issued to it,  each Agent
shall have the same rights and powers  under this  Agreement  and the other Loan
Documents  as any  Lender  and may  exercise  the same as  though it were not an
Agent,  and the terms  "Lender" and  "Lenders"  shall  include each Agent in its
individual capacity.

        8.9 Successor  Administrative Agent. The Administrative Agent may resign
as  Administrative  Agent upon ten days' notice to the Lenders and the Borrower.
If the  Administrative  Agent shall  resign as  Administrative  Agent under this
Agreement and the other Loan Documents,  then the Required  Lenders shall,  with
the consent of the Borrower  (which consent shall not be  unreasonably  withheld
and shall not be required  if an Event of Default  shall have  occurred  that is
continuing) appoint a successor  administrative agent,  whereupon such successor
Administrative  Agent  shall  succeed  to the  rights,  powers and duties of the
Administrative Agent, and the term "Administrative



                                       67




Agent"  shall  mean such  successor  Administrative  Agent  effective  upon such
appointment and approval,  and the former Administrative  Agent's rights, powers
and duties as  Administrative  Agent shall be  terminated,  without any other or
further  act or deed on the part of such former  Administrative  Agent or any of
the parties to this Agreement or any holders of any amounts  payable  hereunder.
After  any  retiring  or  terminated   Administrative   Agent's  resignation  or
termination, as the case may be, as Administrative Agent, the provisions of this
Section  shall  inure to its  benefit as to any  actions  taken or omitted to be
taken by it while it was Administrative Agent under this Agreement and the other
Loan Documents.

                            ARTICLE 9. MISCELLANEOUS

        9.1  Amendments  and Waivers.  Neither this  Agreement,  any Note or any
other  Loan  Document,   nor  any  terms  hereof  or  thereof  may  be  amended,
supplemented  or  modified  except in  accordance  with the  provisions  of this
Section.  The Required Lenders may, or, with the written consent of the Required
Lenders,  the  Administrative  Agent may, from time to time, (a) enter into with
the Borrower written  amendments,  supplements or  modifications  hereto for the
purpose of adding any provisions to this Agreement or changing in any manner the
rights of the  Lenders  or of the  Borrower  hereunder,  (b) enter into with the
Borrower  written  amendments,  supplements or modifications to the Note and the
other Loan  Documents for the purpose of adding  provisions to the Notes or such
other Loan  Documents or changing in any manner the rights of the Lenders or the
Borrower  thereunder or (c) waive,  on such terms and conditions as the Required
Lenders or the  Administrative  Agent,  as the case may be, may  specify in such
instrument,  any of the  requirements of this Agreement,  the Notes or the other
Loan Documents or any Default or Event of Default and its consequences; provided
that no such waiver and no such amendment,  supplement or modification (i) shall
reduce the amount or extend the  scheduled  date of maturity of the Note or Loan
of any Lender or of any  installment  thereof,  or reduce the stated rate of any
interest or fee payable  hereunder or extend the  scheduled  date of any payment
thereof or increase  the amount or extend the  expiration  date of any  Lender's
Commitment,  in each case, without the consent of such Lender, (ii) shall amend,
modify or waive any  provision  of this  Section,  Section 2.12 in a manner that
would alter the pro rata sharing payments required by Section 2.12,  Section 2.6
or 2.12 in a manner  that would  eliminate  or limit a Lender's  right to reject
prepayments  under Section 2.6, or vary any  provision of this  Agreement or any
other Loan Document  which  specifically  by its terms  requires the approval or
consent of all the Lenders or reduce the percentage  specified in the definition
of Required Lenders, or consent to the assignment or transfer by the Borrower of
any of its rights and obligations under this Agreement,  the Notes and the other
Loan Documents, or release any material portion of the Collateral (other than in
accordance  with the terms of the Loan  Documents),  in each case,  without  the
written  consent of all the Lenders,  or (iii) shall amend,  modify or waive any
provision of Article 8 or any other provision in any Loan Document governing the
rights  or  obligations  of the  Administrative  Agent or the  Collateral  Agent
without the written consent of the then Administrative  Agent and the Collateral
Agent. Any such waiver and any such amendment,  supplement or modification shall
apply equally to each of the Lenders and shall be binding upon the Borrower, the



                                       68




Lenders,  the  Administrative  Agent and all future holders of the Notes. In the
case of any waiver, the Borrower, the Lenders and the Administrative Agent shall
be  restored  to their  former  position  and  rights  hereunder  and  under the
outstanding  Notes and any other  Loan  Documents,  and any  Default or Event of
Default  waived  shall be  deemed to be cured  and not  continuing,  but no such
waiver shall extend to any  subsequent  or other  Default or Event of Default or
impair any right consequent thereon.

        9.2 Notice. All notices,  requests and demands to or upon the respective
parties hereto to be effective shall be in writing (including by telecopy), and,
unless otherwise  expressly  provided herein,  shall be deemed to have been duly
given or made when  delivered by hand,  or, in the case of notice by mail,  when
received,  or, in the case of  telecopy  notice,  when  received,  addressed  as
follows in the case of the  Borrower  or the  Administrative  Agent,  and as set
forth in Schedule I in the case of any Lender,  or to such other  address as may
be hereafter notified by the respective parties hereto and any future holders of
the amounts payable hereunder:

        Borrower:                  Northwestern Corporation
                                   125 S. Dakota Avenue, Suite 1100
                                   Sioux Falls, South Dakota 57104
                                   Attention:  Chief Financial Officer

        with a copy to:            Northwestern Corporation
                                   125 S. Dakota Avenue, Suite 1100
                                   Sioux Falls, South Dakota 57104
                                   Attention:  Eric R. Jacobsen, Senior Vice
                                   President and General Counsel

        Administrative Agent:      Credit Suisse First Boston
                                   Eleven Madison Avenue
                                   New York, New York 10010-3629
                                   Attention:  Agency Department Manager

provided that any notice,  request or demand to or upon the Administrative Agent
made  under  this  Agreement  may be  made by  telephone,  with  prompt  written
confirmation  thereafter of such telephonic notice, and the Administrative Agent
shall be entitled to rely on such telephonic notice; provided, further, that any
notice,  request or demand to or upon the  Administrative  Agent and the Lenders
pursuant to Section 2.3,  Section  2.6, or Section  2.7,  shall not be effective
until received.

        9.3 No Waiver;  Cumulative Remedies. No failure to exercise and no delay
in exercising, on the part of the Administrative Agent or any Lender, any right,
remedy,  power or privilege  hereunder or under the other Loan  Documents  shall
operate as a waiver  thereof,  nor shall any single or partial  exercise  of any
right,  remedy,  power or  privilege  hereunder  preclude  any other or  further
exercise thereof or the exercise of any other right, remedy, power or privilege.
The rights,  remedies,  powers and privileges herein provided are cumulative and
not exclusive of any rights, remedies, powers and privileges provided by law.



                                       69




        9.4 Survival of Representations and Warranties.  All representations and
warranties  made  hereunder,  in the other Loan  Documents  and in any document,
certificate or statement  delivered  pursuant  hereto or in connection  herewith
shall survive the execution and delivery of this Agreement and the Notes and the
making of the Loans hereunder.

        9.5 Payment of Expenses and Taxes; Indemnification.  The Borrower agrees
(a) to pay or reimburse the  Administrative  Agent and the Collateral  Agent for
all its reasonable  out-of-pocket costs and expenses incurred in connection with
the development,  preparation and execution of, and any amendment, supplement or
modification to, this Agreement,  the Notes and the other Loan Documents and any
other  documents  prepared  in  connection   herewith  or  therewith,   and  the
consummation  and  administration  of the transactions  contemplated  hereby and
thereby, including, without limitation, the reasonable fees and disbursements of
counsel to the  Administrative  Agent and the  Collateral  Agent,  (b) to pay or
reimburse the Administrative Agent, the Collateral Agent and each Lender for all
its  costs  and  expenses   incurred  in  connection  with  the  enforcement  or
preservation  of any rights  under  this  Agreement,  the Notes,  the other Loan
Documents and any such other documents,  including, without limitation, the fees
and disbursements of counsel (including  allocated costs of internal counsel) to
the Administrative  Agent, the Collateral Agent and each Lender, (c) to pay, and
indemnify and hold harmless the  Administrative  Agent, the Collateral Agent and
each Lender from,  any and all present or future  stamp,  documentary  or excise
taxes or similar charges, any and all recording and filing fees, and any and all
liabilities  with  respect  thereto,  which may be payable or  determined  to be
payable in connection  with the execution  and delivery of, or  consummation  or
administration of any of the transactions  contemplated by, or payment under, or
any amendment,  supplement or modification of, or any waiver or consent under or
in respect of, this Agreement,  the Notes, the other Loan Documents and any such
other  documents,   and  (d)  to  pay,  and  indemnify  and  hold  harmless  the
Administrative  Agent, the Collateral  Agent and each Lender  (including each of
their respective parents, subsidiaries,  officers, directors,  employees, agents
and  affiliates)  from and against,  any and all claims,  demands,  liabilities,
obligations,  losses, damages, penalties,  actions, judgments, suits (regardless
of whether  such Person is a party  thereto),  costs,  settlements,  expenses or
disbursements  of whatever kind or nature  arising  from, in connection  with or
with  respect  to (i) the  execution,  delivery,  enforcement,  performance  and
administration  of this Agreement,  the Notes, the other Loan Documents,  or any
other documents, (ii) the proposed or actual use of the proceeds of the Loans or
(iii) any other Transaction or any transaction or document related thereto or in
connection  therewith (all the foregoing in this clause (d),  collectively,  the
"indemnified  liabilities");  provided  that  the  Borrower  shall  not have any
obligation  hereunder  to any Lender  with  respect to  indemnified  liabilities
arising from the gross  negligence or willful  misconduct of the  Administrative
Agent, the Collateral  Agent or such Lender.  The agreements in this Section 9.5
shall survive repayment of the Obligations hereunder.

        9.6 Successors and Assigns; Participations and Assignments(a).  (a) This
Agreement  shall be binding upon and inure to the benefit of the  Borrower,  the
Lenders,  the  Administrative  Agent,  all future  holders of the amounts  owing
hereunder and their respective successors and assigns,  except that the Borrower
may not assign or transfer



                                       70




any of its rights or obligations  under this Agreement without the prior written
consent of each Lender.

        (b) Any Lender may, in the  ordinary  course of its  commercial  banking
business and in accordance  with applicable law, at any time sell to one or more
banks or other  entities  ("Participants")  participating  interests in any Loan
owing to such  Lender,  any Note held by such  Lender,  any  Commitment  of such
Lender or any other interest  hereunder and under the other Loan  Documents.  In
the  event  of any  such  sale by a  Lender  of a  participating  interest  to a
Participant, such Lender's obligations under this Agreement to the other parties
to this  Agreement  shall remain  unchanged,  such Lender  shall  remain  solely
responsible for the performance thereof,  such Lender shall remain the holder of
any  such  Note  for all  purposes  under  this  Agreement  and the  other  Loan
Documents,  the Borrower  and the  Administrative  Agent shall  continue to deal
solely and directly with such Lender in connection with such Lender's rights and
obligations  under this  Agreement and the other Loan  Documents and such Lender
shall retain the sole right to enforce the obligations of the Borrower  relating
to the Loans and other  obligations  owing to such  Lender  and to  approve  any
amendment,  modification,  or waiver of any provision of this  Agreement  (other
than  amendments,  modifications,  or  waivers  (i)  decreasing  the  amount  of
principal  of or the rate at which  interest  is payable on such Loans or Notes,
(ii)  extending  any  scheduled  principal  payment  date or date  fixed for the
payment of interest on such Loans or Notes, (iii) extending its Commitment, (iv)
permitting  any  assignment  or  transfer  of any of the  Borrower's  rights  or
obligations  under this Agreement) or (v) releasing all or substantially  all of
the  Collateral.  The  Borrower  agrees that if amounts  outstanding  under this
Agreement and the Notes are due or unpaid,  or shall have been declared or shall
have become due and payable  upon the  occurrence  of an Event of Default,  each
Participant  shall be  deemed to have the  right of  setoff  in  respect  of its
participating interest in amounts owing under this Agreement and any Note to the
same extent as if the amount of its  participating  interest were owing directly
to it as a Lender under this Agreement or any Note; provided that, in purchasing
such participating  interest, such Participant shall be deemed to have agreed to
share with the Lenders  the  proceeds  thereof as provided in Section  9.7(a) as
fully as if it were a Lender  hereunder.  The  Borrower  also  agrees  that each
Participant shall be entitled to the benefits of Section 2.14,  Section 2.15 and
Section 2.16 with respect to its  participation in the Commitments and the Loans
outstanding from time to time as if it were a Lender; provided that, in the case
of Section 2.15, such  Participant  shall have complied with the requirements of
said Section;  and provided,  further,  that no Participant shall be entitled to
receive any greater  amount  pursuant to any such  Section  than the  transferor
Lender  would  have been  entitled  to  receive  in respect of the amount of the
participation  transferred by such transferor  Lender to such Participant had no
such transfer occurred.

        (c)  Any  Lender,  in the  ordinary  course  of its  commercial  banking
business and in  accordance  with  applicable  law, at any time and from time to
time may, with the consent of the Administrative  Agent (which consent shall not
be  unreasonably  withheld),  assign to any Lender or any  affiliate or Approved
Fund thereof,  an additional  bank,  financial  institution,  fund or commingled
investment  vehicle,  or other  Person  (an  "Assignee")  all or any part of its
rights  and  obligations  under  this  Agreement  and the Notes  pursuant  to an
assignment agreement, substantially in the form of Exhibit D (or



                                       71




such other form approved by the  Administrative  Agent's in its sole discretion)
(an  "Assignment  and Assumption  Agreement"),  executed by such Assignee,  such
assigning Lender and, in the case of an Assignee that is not then a Lender or an
affiliate or Approved Fund thereof, by the Administrative Agent and delivered to
the  Administrative  Agent for its  acceptance  and  recording in the  Register;
provided that (i) any such  assignment  must be in a minimum amount equal to the
lesser of (x) $1,000,000 and (y) the aggregate Commitments and outstanding Loans
of such  Lender  then in  effect,  and  (ii)  after  giving  effect  to any such
assignment,  such  Lender  shall  have  either  (x)  sold  all  its  rights  and
obligations hereunder and under the Notes or (y) retained at least $1,000,000 of
the aggregate Commitments and outstanding Loans. Upon such execution,  delivery,
acceptance and recording,  from and after the effective date determined pursuant
to such Assignment and Assumption  Agreement,  (1) the Assignee thereunder shall
be a party hereto and, to the extent  provided in such Assignment and Assumption
Agreement,  have  the  rights  and  obligations  of a  Lender  hereunder  with a
Commitment  and  Loans  as set  forth  therein  and  (2)  the  assigning  Lender
thereunder,  to the extent provided in such Assignment and Assumption Agreement,
shall be released from its obligations under this Agreement (and, in the case of
an Assignment and Assumption  Agreement covering all or the remaining portion of
an  assigning  Lender's  rights  and  obligations  under  this  Agreement,  such
assigning Lender shall cease to be a party hereto;  provided that the provisions
of Section 2.14,  Section 2.15,  Section 2.16 and Section 9.5 shall  continue to
benefit such assigning  Lender to the extent required by such  Sections).  On or
prior  to  the  effective  date  determined  pursuant  to  such  Assignment  and
Assumption  Agreement,  (i) appropriate entries shall be made in the accounts of
the assigning  Lender and the Register  evidencing such assignment and releasing
the Borrower from any and all obligations to the assigning  Lender in respect of
the assigned Loan or Loans and (ii) appropriate  entries evidencing the assigned
Loan or Loans shall be made in the  accounts of the Assignee and the Register as
required  by Section  9.6(d).  In the event  that any Notes have been  issued in
respect of the assigned  Loan or Loans,  such Notes shall be marked  "cancelled"
and surrendered by the assigning Lender to the  Administrative  Agent for return
to the Borrower.

        (d) The Administrative Agent shall maintain,  at its address referred to
in Section 9.2, a copy of each Assignment and Assumption  Agreement delivered to
it and a  register  (the  "Register")  for  the  recordation  of the  names  and
addresses  of the Lenders and the  Commitment  of, and  principal  amount of the
Loans  owing to,  each  Lender  from time to time.  To the extent  permitted  by
applicable law, the entries in the Register shall be conclusive,  in the absence
of manifest error,  and the Borrower and the  Administrative  Agent may (and, in
the case of any Loan not  evidenced  by a Note,  shall)  treat each Person whose
name is recorded in the  Register as the owner of the Loan  recorded  therein as
the  owner  thereof  for all  purposes  of this  Agreement  and the  other  Loan
Documents, notwithstanding notice to the contrary. Any assignment of any Loan or
other obligation  hereunder not evidenced by a Note shall be effective only upon
appropriate  entries  with  respect  thereto  being  made in the  Register.  The
Register  shall be available for  inspection  by the Borrower at any  reasonable
time and from time to time upon reasonable prior notice.



                                       72




        (e) Upon its receipt of an Assignment and Assumption  Agreement executed
by the assigning Lender and an Assignee (and, in the case of an Assignee that is
not  then a  Lender  or an  affiliate  thereof,  by the  Administrative  Agent )
together  with  payment  by  the  assigning  Lender  or by the  Assignee  to the
Administrative  Agent  of a  registration  and  processing  fee of  $3,500,  the
Administrative  Agent shall  promptly  accept  such  Assignment  and  Assumption
Agreement and, on the effective date determined  pursuant thereto,  shall record
the  information  contained  therein  in the  Register  and give  notice of such
acceptance and recordation to the Borrower.

        (f)  Notwithstanding  anything to the  contrary  contained  herein,  any
Lender (a "Granting  Lender") may grant to a special  purpose funding vehicle (a
"SPC"),  identified as such in writing from time to time by the Granting  Lender
to the  Administrative  Agent and the  Borrower,  the  option to  provide to the
Borrower all or any part of any Loan that such Granting  Lender would  otherwise
be obligated to make to the Borrower  pursuant to this Agreement;  provided that
(i) nothing herein shall  constitute a commitment by any SPC to make any advance
hereunder,  (ii) if an SPC elects not to exercise such option or otherwise fails
to provide all or any part of such Loan, the Granting  Lender shall be obligated
to make such Loan pursuant to the terms  hereof.  The making of a Loan by an SPC
hereunder shall utilize the applicable  Commitment of the Granting Lender to the
same extent, and as if, such Loan were made by such Granting Lender.  Each party
hereto  hereby  agrees that no SPC shall be liable for any  indemnity or similar
payment  obligation  under this  Agreement (all liability for which shall remain
with the Granting  Lender).  In furtherance of the foregoing,  each party hereto
hereby agrees (which  agreement shall survive the termination of this Agreement)
that,  prior to the date that is one year and one day after the  payment in full
of all outstanding  commercial paper or other senior indebtedness of any SPC, it
will not institute  against,  or join any other person in  instituting  against,
such SPC any bankruptcy, reorganization,  arrangement, insolvency or liquidation
proceedings  under  the laws of the  United  States  or any  State  thereof.  In
addition,  notwithstanding  anything to the  contrary  contained in this Section
9.6(f),  any SPC may (i) with notice to, but without the prior  written  consent
of, the Borrower and the Administrative  Agent and without paying any processing
fee  therefor,  assign  all or a portion  of its  interests  in any Loans to the
Granting Lender or to any financial  institutions  (consented to by the Borrower
and the  Administrative  Agent) providing  liquidity and/or credit support to or
for the account of such SPC to support the funding or  maintenance  of Loans and
(ii) disclose on a confidential basis any non-public information relating to its
Loans to any rating agency,  commercial  paper dealer or provider of any surety,
guarantee or credit or liquidity  enhancement  to such SPC. This section may not
be amended without the written consent of the SPC.

        (g) The Borrower  authorizes the Lenders to disclose to any  Participant
or Assignee (each, a "Transferee") and any prospective  Transferee,  any and all
financial information in the Lenders' possession concerning the Borrower and its
respective  Affiliates which has been delivered to the  Administrative  Agent or
the Lenders by or on behalf of the Borrower  pursuant to this Agreement or which
has been delivered to the Administrative Agent or the Lenders by or on behalf of
the Borrower in connection with the Lender's  credit  evaluation of the Borrower
and its respective Affiliates prior to



                                       73




becoming  a party to this  Agreement;  provided  that each such  Transferee  and
prospective  Transferee  agrees  in  writing  to be bound by the  provisions  of
Section 9.8.

        (h) Nothing  herein shall prohibit any Lender from pledging or assigning
any Note to any Federal Reserve Bank in accordance with applicable law. In order
to facilitate  such pledge or assignment,  the Borrower hereby agrees that, upon
request  of any  Lender  at any time and from  time to time on or after the Cash
Collateral  Release  Date,  the Borrower  shall  provide to such Lender,  at the
Borrower's own expense,  a promissory note in substantially  the form of Exhibit
A-1.

        9.7  Adjustments;  Setoff(a) . (a) If any Lender (a "Benefited  Lender")
shall at any time  receive any payment of all or part of its Loans,  or interest
thereon,  or receive any collateral in respect thereof  (whether  voluntarily or
involuntarily,  by  setoff,  pursuant  to events or  proceedings  of the  nature
referred to in Section 7.1(f), or otherwise),  in a greater  proportion than any
such payment to or collateral  received by any other Lender,  if any, in respect
of such other Lender's Loans, or interest  thereon,  such Benefited Lender shall
purchase  for cash  from the  other  Lenders a  participating  interest  in such
portion of each such other Lender's  Loans,  or shall provide such other Lenders
with the benefits of any such collateral,  or the proceeds thereof,  as shall be
necessary to cause such Benefited Lender to share the excess payment or benefits
of such collateral or proceeds  ratably with each of the Lenders;  provided that
if all or any portion of such excess payment or benefits is thereafter recovered
from such Benefited Lender,  such purchase shall be rescinded,  and the purchase
price and  benefits  returned,  to the  extent  of such  recovery,  but  without
interest.

        (b)  Upon the  occurrence  and  during  the  continuance  of an Event of
Default,  in addition to any rights and remedies of the Lenders provided by law,
each Lender shall have the right,  (without  prior notice to the  Borrower,  any
such notice being  expressly  waived by the Borrower to the extent  permitted by
applicable  law),  upon any amount  becoming  due and  payable  by the  Borrower
hereunder or under the Notes (whether at the stated maturity, by acceleration or
otherwise),  to setoff and appropriate and apply against such amount any and all
deposits  (general or special,  time or demand,  provisional  or final),  in any
currency,  and any other credits,  indebtedness or claims,  in any currency,  in
each case  whether  direct or  indirect,  absolute  or  contingent,  matured  or
unmatured,  at any time  held or owing by such  Lender  or any  branch or agency
thereof to or for the credit or the account of the Borrower.  Each Lender agrees
promptly  to notify the  Borrower  and the  Administrative  Agent after any such
setoff and  application  made by such Lender;  provided that the failure to give
such notice shall not affect the validity of such setoff and application.

        9.8  Confidentiality.  Each  Lender  agrees to exercise  all  reasonable
efforts   (consistent  with  its  customary  methods  for  keeping   information
confidential)  to  keep  any  information  delivered  or made  available  by the
Borrower  confidential  from anyone other than  persons  employed or retained by
such Lender who are or are expected to become engaged in evaluating,  approving,
structuring  or  administering  the Loans;  provided  that nothing  herein shall
prevent any Lender from disclosing such information (a) to any Affiliate of such
Lender or to any other Lender, (b) upon the order of any court or



                                       74




administrative  agency,  (c) upon the request or demand of any regulatory agency
or authority having  jurisdiction  over such Lender,  (d) that has been publicly
disclosed,  (e) in connection  with any litigation  relating to the Loans,  this
Agreement  or any  transaction  contemplated  hereby to which any  Lender or the
Administrative  Agent may be a party, (f) to the extent  reasonably  required in
connection with the exercise of any remedy hereunder, (g) to such Lender's legal
counsel and independent auditors,  and (h) to any actual or proposed participant
or assignee  of all or any part of its Loans  hereunder,  if such other  Person,
prior to such disclosure, agrees, in writing, for the benefit of the Borrower to
comply with the provisions of this Section 9.8.

        9.9  Effectiveness.  This Agreement  shall become  effective on the date
when counterparts hereof executed on behalf of the Borrower,  the Administrative
Agent and each Lender shall have been received by the  Administrative  Agent and
notice  thereof  shall  have  been  given  by the  Administrative  Agent  to the
Borrower.

        9.10 Counterparts.  This Agreement may be executed by one or more of the
parties to this Agreement on any number of separate  counterparts  (including by
telecopy),  and  all  said  counterparts  taken  together  shall  be  deemed  to
constitute  one and the same  instrument.  A set of the copies of this Agreement
signed by all the  parties  shall be lodged  with each of the  Borrower  and the
Administrative Agent.

        9.11  Severability.  Any provision of this Agreement which is prohibited
or  unenforceable  in  any  jurisdiction  shall,  as to  such  jurisdiction,  be
ineffective  to the  extent  of such  prohibition  or  unenforceability  without
invalidating  the  remaining  provisions  hereof,  and any such  prohibition  or
unenforceability   in  any   jurisdiction   shall  not   invalidate   or  render
unenforceable such provision in any other jurisdiction.

        9.12 Integration.  This Agreement and the other Loan Documents represent
the agreement of the  Borrower,  the  Administrative  Agent and the Lenders with
respect to the subject  matter  hereof and  thereof,  and there are no promises,
undertakings,  representations or warranties by the Administrative  Agent or any
Lender  relative to subject  matter hereof or thereof not expressly set forth or
referred to herein or in the other Loan Documents.

        9.13  GOVERNING  LAW.  THIS  AGREEMENT  AND THE NOTES AND THE RIGHTS AND
OBLIGATIONS  OF THE PARTIES UNDER THIS AGREEMENT AND THE NOTES SHALL BE GOVERNED
BY, AND CONSTRUED AND  INTERPRETED  IN ACCORDANCE  WITH, THE LAW OF THE STATE OF
NEW YORK WITHOUT REGARD TO THE PRINCIPLES OF CONFLICT OF LAWS THEREOF OTHER THAN
SECTION 5-1401 OF THE GENERAL OBLIGATIONS LAW OF THE STATE OF NEW YORK.

        9.14   Submission  To   Jurisdiction;   Waivers.   The  Borrower  hereby
irrevocably and unconditionally:

        (a)  submits  for  itself  and  its  property  in any  legal  action  or
proceeding  relating to this  Agreement and the other Loan Documents to which it
is a party, or for



                                       75




recognition  and  enforcement  of  any  judgment  in  respect  thereof,  to  the
non-exclusive  general  jurisdiction of the Courts of the State of New York, the
courts of the United  States of America for the  Southern  District of New York,
and appellate courts from any thereof;

        (b) consents that any such action or  proceeding  may be brought in such
courts and waives any objection  that it may now or hereafter  have to the venue
of any such  action  or  proceeding  in any such  court or that  such  action or
proceeding was brought in an inconvenient court and agrees not to plead or claim
the same;

        (c) agrees that service of process in any such action or proceeding  may
be effected by mailing a copy thereof by  registered  or certified  mail (or any
substantially  similar form of mail),  postage prepaid, to the Borrower,  as the
case may be, at its address set forth in Section 9.2 or at such other address of
which the Administrative Agent shall have been notified pursuant thereto;

        (d) agrees  that  nothing  contained  herein  shall  affect the right to
effect  service of process in any other  manner  permitted by law or shall limit
the right to sue in any other jurisdiction; and

        (e) waives,  to the maximum  extent not  prohibited by law, any right it
may have to claim or recover in any legal  action or  proceeding  referred to in
this Section any special, exemplary, punitive or consequential damages.

        9.15 Acknowledgments. The Borrower hereby acknowledges that:

        (a) Neither the  Administrative  Agent nor any Lender has any  fiduciary
relationship  with or duty to the Borrower  arising out of or in connection with
this Agreement or any of the other Loan Documents,  and the relationship between
the Administrative Agent and the Lenders, on the one hand, and the Borrower,  on
the other hand, in  connection  herewith or therewith is solely that of creditor
and debtor; and

        (b) no joint venture is created hereby or by the other Loan Documents or
otherwise exists by virtue of the transactions  contemplated  hereby between the
Administrative Agent, the Lenders and the Borrower.

        9.16 Waivers of Jury Trial. THE BORROWER,  THE ADMINISTRATIVE  AGENT AND
THE LENDERS HEREBY  IRREVOCABLY AND  UNCONDITIONALLY  WAIVE TRIAL BY JURY IN ANY
LEGAL ACTION OR PROCEEDING  RELATING TO THIS AGREEMENT OR THE NOTES OR ANY OTHER
LOAN DOCUMENT AND FOR ANY COUNTERCLAIM THEREIN.




                                       76




               IN WITNESS WHEREOF, the parties hereto have caused this Agreement
to be duly executed and delivered by their proper and duly  authorized  officers
as of the day and year first above written.

                                            BORROWER:

                                            NORTHWESTERN CORPORATION


                                            By:  /s/ Kipp D. Orme
                                                --------------------------------
                                                Name:     Kipp D. Orme
                                                Title:    Vice President and CFO


                                            By:  /s/ Richard R. Hylland
                                                --------------------------------
                                                Name:     Richard R. Hylland
                                                Title:    President and COO


                                            ADMINISTRATIVE AGENT:

                                            CREDIT SUISSE FIRST BOSTON,
                                              CAYMAN ISLANDS BRANCH


                                            By:  /s/ James S. Finch
                                                --------------------------------
                                                Name:     James S. Finch
                                                Title:    Managing Director


                                            By:  /s/ S. William Fox
                                                --------------------------------
                                                Name:     S. William Fox
                                                Title:    Vice President



                              Signature Page to the
                       NorthWestern 2002 Credit Agreement




                                            LENDER:

                                            CREDIT SUISSE FIRST BOSTON,
                                              CAYMAN ISLANDS BRANCH


                                            By:  /s/ James S. Finch
                                                --------------------------------
                                                Name:     James S. Finch
                                                Title:    Managing Director


                                            By:  /s/ S. William Fox
                                                --------------------------------
                                                Name:     S. William Fox
                                                Title:    Vice President




                              Signature Page to the
                       NorthWestern 2002 Credit Agreement





                                                                     EXHIBIT A-1
                                                             TO CREDIT AGREEMENT
                                                             -------------------

                                FORM OF TERM NOTE
                                -----------------


$                                                             New York, New York
 --------------
                                                              [__________], 200_



               FOR VALUE RECEIVED, the undersigned,  NORTHWESTERN CORPORATION, a
Delaware  corporation,  with its principal place of business at 125 South Dakota
Avenue,  Suite 1100,  Sioux Falls,  South Dakota  57104-6403  (the  "Borrower"),
hereby unconditionally promises to pay to the order of ___________________, with
a place of business at  ______________________________  (the "Lender"),  by wire
transfer to the account of Credit Suisse First Boston, as  Administrative  Agent
(as defined in the Credit Agreement referred to below), with [ACCOUNT BANK], ABA
NO. [o], Account No. [o], Attn: Agency,  Reference:  [o], or at such other place
or places and to such  account or  accounts  as the  Administrative  Agent,  may
direct from time to time by notice to the Borrower in accordance with the Credit
Agreement  (as  hereinafter  defined),  in lawful money of the United  States of
America and in immediately  available  funds, the principal amount of the lesser
of (a)  _______________  DOLLARS  ($____________)  and (b) the aggregate  unpaid
principal  amount of all Loans (as defined in the Credit  Agreement) made by the
Lender to the undersigned pursuant to the Credit Agreement,  payable, subject to
the fourth paragraph  hereof,  on or before the Maturity Date (as defined in the
Credit Agreement).

               The  Borrower  hereby  unconditionally   further  agrees  to  pay
interest in like money on the unpaid  principal  amount hereof from time to time
outstanding  from the date hereof,  and, to the extent  permitted by  applicable
law, on any unpaid interest  payable hereon,  from the date such interest is due
hereunder,  at the  applicable  rates per annum  and on the dates  specified  in
Section 2.9 of the Credit Agreement until such principal amount and interest, as
applicable,  is paid in full (both  before  and after  judgment).  The  Borrower
agrees to pay costs and expenses, including reasonable attorneys' fees, incurred
in  connection  with the  interpretation  or  enforcement  of this  Term Note in
accordance with the Credit Agreement.

               This Term Note is one of the Term Notes referred to in the Credit
Agreement, dated as of December 17, 2002 (as amended, restated,  supplemented or
otherwise  modified  from time to time,  the "Credit  Agreement";  terms defined
therein being used herein as defined therein),  among the Borrower,  the several
banks and other financial  institutions  parties thereto (including the Lender),
and the Administrative Agent, and is entitled to the benefits thereof and of the
other Loan  Documents  referred  to  therein,  and is subject  to  optional  and
mandatory prepayment in whole or in part as provided therein.  This Term Note is
secured as provided in the Loan Documents.  Reference is hereby made to the Loan
Documents for a  description  of the  properties  and assets in which a security
interest has been granted, the nature and extent of the security,  the terms and
conditions upon which the security  interests were granted and the rights of the
holder of this Term Note in respect thereof.



                                     A-1-1


               Upon the  occurrence  of any one or more of the Events of Default
specified in the Credit  Agreement,  all amounts  remaining  unpaid on this Term
Note shall become, or may be declared to be,  immediately due and payable all as
provided therein.

               The Lender may proceed  against the Borrower in such manner as it
deems desirable in accordance with the Credit  Agreement.  None of the rights or
remedies of the Lender  hereunder are to be deemed waived or affected by failure
or delay on the part of the Lender to exercise the same. All remedies  conferred
upon the Lender by this Term Note or any other  instrument  or  agreement  or by
applicable law, shall be cumulative and none is exclusive, and such remedies may
be exercised concurrently or consecutively at the Lender's option.

               All parties now and  hereafter  liable with  respect to this Term
Note, whether maker, principal, surety, guarantor, endorser or otherwise, hereby
waive presentment,  demand of payment, notice of protest, notice of dishonor and
all other notices of any kind.

               THIS  TERM  NOTE  SHALL  BE  GOVERNED  BY,  AND   CONSTRUED   AND
INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD
TO THE  PRINCIPLES OF CONFLICT OF LAWS THEREOF (OTHER THAN SECTION 5-1401 OF THE
GENERAL OBLIGATIONS LAW OF THE STATE OF NEW YORK).


                                            NORTHWESTERN CORPORATION


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

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


                                     A-1-2



                                                                     EXHIBIT A-2
                                                             TO CREDIT AGREEMENT
                                                             -------------------


                                FORM OF QFL NOTE
                                ----------------


$                                                             New York, New York
 --------------
                                                              [__________], 200_



               FOR VALUE RECEIVED, the undersigned,  NORTHWESTERN CORPORATION, a
Delaware  corporation,  with its principal place of business at 125 South Dakota
Avenue,  Suite 1100,  Sioux Falls,  South Dakota  57104-6403  (the  "Borrower"),
hereby unconditionally promises to pay to the order of ___________________, with
a place of business at  ______________________________  (the "Lender"),  by wire
transfer to the account of Credit Suisse First Boston, as  Administrative  Agent
(as defined in the Credit Agreement referred to below), with [ACCOUNT BANK], ABA
NO. [o], Account No. [o], Attn: Agency,  Reference:  [o], or at such other place
or places and to such  account or  accounts  as the  Administrative  Agent,  may
direct from time to time by notice to the Borrower in accordance with the Credit
Agreement  (as  hereinafter  defined),  in lawful money of the United  States of
America and in immediately  available  funds, the principal amount of the lesser
of (a)  _______________  DOLLARS  ($____________)  and (b) the aggregate  unpaid
principal  amount of all Loans (as defined in the Credit  Agreement) made by the
Lender to the undersigned pursuant to the Credit Agreement,  payable, subject to
the fourth paragraph  hereof,  on or before the Maturity Date (as defined in the
Credit Agreement).

               The  Borrower  hereby  unconditionally   further  agrees  to  pay
interest in like money on the unpaid  principal  amount hereof from time to time
outstanding  from the date hereof,  and, to the extent  permitted by  applicable
law, on any unpaid interest  payable hereon,  from the date such interest is due
hereunder,  at the  applicable  rates per annum  and on the dates  specified  in
Section 2.9 of the Credit Agreement until such principal amount and interest, as
applicable,  is paid in full (both  before  and after  judgment).  The  Borrower
agrees to pay costs and expenses, including reasonable attorneys' fees, incurred
in  connection  with the  interpretation  or  enforcement  of this  Term Note in
accordance with the Credit Agreement.

               This Term Note is one of the Term Notes referred to in the Credit
Agreement, dated as of December 17, 2002 (as amended, restated,  supplemented or
otherwise  modified  from time to time,  the "Credit  Agreement";  terms defined
therein being used herein as defined therein),  among the Borrower,  the several
banks and other financial  institutions  parties thereto (including the Lender),
and the Administrative Agent, and is entitled to the benefits thereof and of the
other Loan  Documents  referred  to  therein,  and is subject  to  optional  and
mandatory prepayment in whole or in part as provided therein.  This Term Note is
secured as provided in the Loan Documents.  Reference is hereby made to the Loan
Documents for a  description  of the  properties  and assets in which a security
interest has been granted, the nature and extent of the



                                     A-2-1




security,  the terms and  conditions  upon  which the  security  interests  were
granted and the rights of the holder of this Term Note in respect thereof.

               Upon the  occurrence  of any one or more of the Events of Default
specified in the Credit  Agreement,  all amounts  remaining  unpaid on this Term
Note shall become, or may be declared to be,  immediately due and payable all as
provided therein.

               The Lender may proceed  against the Borrower in such manner as it
deems desirable in accordance with the Credit  Agreement.  None of the rights or
remedies of the Lender  hereunder are to be deemed waived or affected by failure
or delay on the part of the Lender to exercise the same. All remedies  conferred
upon the Lender by this Term Note or any other  instrument  or  agreement  or by
applicable law, shall be cumulative and none is exclusive, and such remedies may
be exercised concurrently or consecutively at the Lender's option.

               All parties now and  hereafter  liable with  respect to this Term
Note, whether maker, principal, surety, guarantor, endorser or otherwise, hereby
waive presentment,  demand of payment, notice of protest, notice of dishonor and
all other notices of any kind.

               This Term Note is a QFL Note under the Credit  Agreement,  and as
such,  ownership  of  the  obligation  represented  by  this  Term  Note  may be
transferred only in accordance with Section 2.15 of the Credit Agreement.

               THIS  TERM  NOTE  SHALL  BE  GOVERNED  BY,  AND   CONSTRUED   AND
INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD
TO THE  PRINCIPLES OF CONFLICT OF LAWS THEREOF (OTHER THAN SECTION 5-1401 OF THE
GENERAL OBLIGATIONS LAW OF THE STATE OF NEW YORK).

                                                   NORTHWESTERN CORPORATION


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

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




                                     A-2-2




                                                                     EXHIBIT B-l
                                                             TO CREDIT AGREEMENT
                                                             -------------------


                           FORM OF NOTICE OF BORROWING
                           ---------------------------

                                                           Date:

Credit Suisse First Boston,
    as Administrative Agent
Eleven Madison Street
New York, New York 10010-3629
Attention: Agency Department Manager

               Re:    Credit  Agreement  dated as of  December  17,  2002  among
                      Northwestern  Corporation,  a  Delaware  corporation  (the
                      "Borrower"),  the Lenders from time to time party thereto,
                      and  the  Administrative  Agent  (as  amended,   restated,
                      supplemented or otherwise  modified from time to time, the
                      "Credit Agreement").
               -----------------------------------------------------------------

               Pursuant to Section 2.3 of the Credit  Agreement,  this Notice of
Borrowing  ("Notice")  represents the request of the Borrower to borrow on [ , ]
(the "Borrowing Date")1 from the Lenders the principal amount of DOLLARS ($ ) in
Loans as [Alternate Base Rate Loans] [Eurodollar Loans].

               1.  [$_________  of such Loans will be  Eurodollar  Loans.]  [The
initial  Interest  Period for such  Eurodollar  Loans is requested to be a [one]
[two] [three] or [six] month period.]

               2.  Proceeds  of  such  Loans  are  to  be   wire-transferred  in
accordance with the following wire instructions:


                         _____________________________
                         _____________________________
                         _____________________________

        The undersigned hereby certifies that, as of the Borrowing Date,
all the  applicable  conditions  contained in Sections 4.1 and 4.2 of the Credit
Agreement have been  satisfied (or waived  pursuant to Section 9.1 of the Credit
Agreement).

               Unless  otherwise  defined  herein,  terms  defined in the Credit
Agreement shall have the same meanings in this Notice.



- -----------------
1 A Notice of Borrowing  must be received by the  Administrative  Agent prior to
10:00 a.m. (New York time) on the requested Borrowing Date.

                                     B-1-1




               IN WITNESS  WHEREOF,  the  Borrower  has caused this Notice to be
executed and delivered by an authorized officer this ______ day of ____________,
_______.



                                            NORTHWESTERN CORPORATION


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


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



                                      B-1-2




                                                                     EXHIBIT B-2
                                                             TO CREDIT AGREEMENT
                                                             -------------------


                   FORM OF NOTICE OF INTEREST RATE CONVERSION
                   ------------------------------------------

                                                           Date:

Credit Suisse First Boston,
    as Administrative Agent
Eleven Madison Street
New York, New York 10010-3629
Attention: Agency Department Manager

               Re:    Credit  Agreement  dated as of  December  17,  2002  among
                      Northwestern  Corporation,  a  Delaware  corporation  (the
                      "Borrower"),  the Lenders from time to time party thereto,
                      and  the  Administrative  Agent  (as  amended,   restated,
                      supplemented or otherwise  modified from time to time, the
                      "Credit Agreement").
               -----------------------------------------------------------------

Ladies and Gentlemen:

               The Borrower  hereby gives notice  pursuant to Section 2.7 of the
Credit  Agreement  that it  requests  a  continuation  or  conversion  of  Loans
outstanding under the Credit Agreement,  and in connection  therewith sets forth
below the terms on which such  continuation  or  conversion  is  requested to be
made;  capitalized  terms used and not defined  herein  shall have the  meanings
provided in the Credit Agreement:

               The Borrower hereby requests that on _____________, _____:2

               (1) $ ___________ of the currently  outstanding  principal amount
        of the Loans currently  being  maintained as [Alternate Base Rate Loans]
        [[one] [two] [three] [six] month Eurodollar Loans]3,

               (2) be [converted into] [continued as],

               (3)  [Eurodollar  Loans having an Interest  Period of [one] [two]
        [three] [six] months,  which Interest  Period will expire on __________,
        ____]4 [Alternate Base Rate Loans].



- --------------------
2  Conversion  of  Eurodollar  Loans  may be made  only on the  last  day of the
applicable  Interest  Period.  A Notice of  Conversion  must be  received by the
Administrative  Agent prior to 10:00 a.m. (New York City time), (x) with respect
to Alternate Base Rate Loans, at least three Business Days, and (y) with respect
to Eurodollar Loans, at least two Business Days, prior to the date of Borrower's
election.
               3 Select appropriate option.
               4 Insert  appropriate  interest  rate option and, if  applicable,
number of months (for Eurodollar Loans).


                                     B-2-1


               [In the  event  that  such  Loans are to be  converted  into,  or
continued as, Eurodollar Loans, the Borrower hereby certifies in accordance with
Section  2.7 of the Credit  Agreement  that no  Default or Event of Default  has
occurred  and is  continuing  as of the date of this  Notice  of  Interest  Rate
Conversion.]

               IN  WITNESS  WHEREOF,  the  Borrower  has caused  this  Notice of
Interest Rate  Conversion to be executed and  delivered,  and the  certification
contained  herein  to be made,  by an  authorized  officer  this  ______  day of
____________, _______.



                                            NORTHWESTERN CORPORATION


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





                                     B-2-2



                                                                       EXHIBIT C
                                                             TO CREDIT AGREEMENT
                                                             -------------------


                           FORM OF CLOSING CERTIFICATE
                           ---------------------------

                            NORTHWESTERN CORPORATION

               Pursuant to Section  4.1(e) of the Credit  Agreement  dated as of
December 17, 2002 among Northwestern  Corporation,  a Delaware  corporation (the
"Borrower"),  the several banks and other  financial  institutions  from time to
time parties  thereto  (the  "Lenders"),  and Credit  Suisse  First  Boston,  as
administrative  agent for the Lenders (the  "Credit  Agreement";  terms  defined
therein shall have their defined  meanings  when used herein),  the  undersigned
hereby  certifies that [he or she] is the  _____________  of the Borrower and in
such capacity further certifies as follows:

               1. The  representations  and warranties of the Borrower set forth
in the  Credit  Agreement  and each of the  other  Loan  Documents  to which the
Borrower is a party, are true and correct in all material  respects on and as of
the date hereof.

               2. The  Borrower  has received  all  documents  and  instruments,
including all consents,  authorizations and filings, required or advisable under
any  Requirement of Law or Contractual  Obligation of the Borrower in connection
with the execution,  delivery,  performance,  validity and enforceability of the
Credit Agreement, the Notes and the other Loan Documents except as expressly set
forth in each document.  I have examined  Schedule 3.4b to the Credit  Agreement
and  attached  hereto are copies of all  consents,  authorizations  and  filings
referred  to  in  Schedule  3.4b  of  the  Credit  Agreement,   which  consents,
authorizations and filings are in full force and effect as of the date hereof.

               3. No Default or Event of Default has occurred and is  continuing
as of the date hereof or after  giving  effect to the making of the Loans on the
date hereof.

               4. There are no liquidation or dissolution proceedings pending or
to my  knowledge  threatened  against  the  Borrower,  nor has any  other  event
occurred affecting or threatening the existence of the Borrower.



                                      C-1



               IN WITNESS WHEREOF, the undersigned has hereunto set his name.




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


Date:  [o], 2002





                                      C-2




                                                                       EXHIBIT D
                                                             TO CREDIT AGREEMENT
                                                             -------------------

                   FORM OF ASSIGNMENT AND ASSUMPTION AGREEMENT

               This Assignment and Assumption  Agreement (the  "Assignment")  is
dated as of the  Effective  Date set  forth  below  and is  entered  into by and
between [Insert name of Assignor] (the "Assignor") and [Insert name of Assignee]
(the  "Assignee").  Capitalized terms used but not defined herein shall have the
meanings given to them in the Credit Agreement identified below (as amended, the
"Credit  Agreement"),  receipt of a copy of which is hereby  acknowledged by the
Assignee. The Standard Terms and Conditions set forth in Annex 1 attached hereto
are hereby  agreed to and  incorporated  herein by reference  and made a part of
this Assignment as if set forth herein in full.

               For an agreed  consideration,  the  Assignor  hereby  irrevocably
sells and assigns to the Assignee, and the Assignee hereby irrevocably purchases
and assumes from the Assignor,  subject to and in  accordance  with the Standard
Terms and Conditions and the Credit Agreement, as of the Effective Date inserted
by the Administrative Agent as contemplated below, the interest in and to all of
the Assignor's  rights and obligations  under the Credit Agreement and any other
documents or instruments  delivered  pursuant thereto that represents the amount
and percentage  interest  identified below of all of the Assignor's  outstanding
rights  and  obligations  under  the  respective   facilities  identified  below
(including,  to the extent included in any such facilities,  [__________])  (the
"Assigned  Interest").  Such sale and  assignment  is  without  recourse  to the
Assignor  and,  except  as  expressly  provided  in  this  Assignment,   without
representation or warranty by the Assignor.

1.      Assignor:                   ______________________________

2.      Assignee:                   ______________________________
                                    [and is an Affiliate/Approved Fund(5)]

3.                                  Borrower:    NorthWestern   Corporation,   a
                                    Delaware corporation.

4.                                  Administrative  Agent:  Credit  Suisse First
                                    Boston,  as the  administrative  agent under
                                    the Credit Agreement

5.      Credit Agreement:           Credit  Agreement,  dated as of December 17,
                                    2002 (as amended, restated,  supplemented or
                                    otherwise  modified  from time to time,  the
                                    "Credit  Agreement";  terms defined  therein
                                    being used herein as defined therein), among
                                    the  Borrower,  the several  banks and other
                                    financial   institutions   parties   thereto
                                    (including    the    Lender),     and    the
                                    Administrative Agent


- --------------------
5 Select as applicable.


                                      D-1



6.       Assigned Interest:

- -------------------------- ----------------------- ----------------------
        Aggregate
        Amount of              Amount of            Percentage
    Commitment/Loans        Commitment/Loans        Assigned of
    for all Lenders             Assigned         Commitment/Loans6
- -------------------------- ----------------------- ----------------------

 $-------------             $-------------                  ----------%
- -------------------------- ----------------------- ----------------------

 $-------------             $-------------                  ----------%
- -------------------------- ----------------------- ----------------------

[Name of Assignor]

               Revised Commitment amount:                   $
               -------------------------                     -----------------

               Revised Commitment Percentage:                                 %
               -----------------------------                 -----------------

               Revised Loan amount:                         $
               -------------------                           -----------------

               Fees Assigned (if any):                      $
               ----------------------                        -----------------


[Name of Assignee]

               New Commitment amount:                       $
               ---------------------                         -----------------

               New Commitment Percentage:                                     %
               -------------------------                      ----------------

               New Loan amount:                             $
               ---------------                               -----------------

Address for Notices for Assignee:
- ---------------------------------

[Address]
Attention: __________________
Telephone: __________________
Telecopy: ___________________
Telephone ___________________
Confirmation:________________

Eurodollar Lending Office:
- --------------------------



_____________________________
_____________________________
_____________________________


- --------------------
6 Set forth, to at least 9 decimals,  as a percentage of the Commitment/Loans of
all Lenders thereunder.


                                      D-2



Domestic Lending Office:


_____________________________
_____________________________
_____________________________


Effective Date: _____________ ___, 20___ [TO BE INSERTED BY ADMINISTRATIVE AGENT
AND WHICH SHALL BE THE EFFECTIVE DATE OF RECORDATION OF TRANSFER IN THE REGISTER
THEREFOR.]

               The terms set forth in this Assignment are hereby agreed to:

                                            ASSIGNOR
                                            [NAME OF ASSIGNOR]


                                            By:______________________________
                                               Name:
                                               Title:

                                            ASSIGNEE
                                            [NAME OF ASSIGNEE]


                                            By:______________________________
                                               Name:
                                               Title:





                                      D-3



Consented to and Accepted:

CREDIT SUISSE FIRST BOSTON, as
  Administrative Agent


By_________________________________
  Name:
  Title:


By_________________________________
  Name:
  Title:




                                      D-4



                                                                         ANNEX 1

                    NORTHWESTERN CORPORATION CREDIT AGREEMENT
                          DATED AS OF DECEMBER 17, 2002

                  STANDARD TERMS AND CONDITIONS FOR ASSIGNMENT
                            AND ASSUMPTION AGREEMENT

               1. Representations and Warranties.

               1.1. Assignor.  The Assignor (a) represents and warrants that (i)
it is the legal and beneficial owner of the Assigned Interest, (ii) the Assigned
Interest is free and clear of any lien,  encumbrance  or other adverse claim and
(iii) it has full power and authority,  and has taken all action  necessary,  to
execute  and  deliver  this  Assignment  and  to  consummate  the   transactions
contemplated  hereby; and (b) assumes no responsibility  with respect to (i) any
statements,  warranties or  representations  made in or in  connection  with any
Credit  Document,  (ii)  the  execution,  legality,  validity,   enforceability,
genuineness,  sufficiency  or  value  of  the  Credit  Agreement  or  any  other
instrument or document  delivered  pursuant thereto,  other than this Assignment
(herein  collectively  the "Credit  Documents"),  or any collateral  thereunder,
(iii) the  financial  condition  of the  Borrower,  any of its  Subsidiaries  or
Affiliates  or any other Person  obligated in respect of any Credit  Document or
(iv) the performance or observance by the Borrower,  any of its  Subsidiaries or
Affiliates or any other Person of any of their respective  obligations under any
Credit Document.

               1.2. Assignee.  The Assignee (a) represents and warrants that (i)
it has full power and authority,  and has taken all action necessary, to execute
and deliver this  Assignment  and to consummate  the  transactions  contemplated
hereby  and to become a Lender  under the  Credit  Agreement,  (ii) it meets all
requirements of an Assignee under the Credit Agreement, (iii) from and after the
Effective Date, it shall be bound by the provisions of the Credit Agreement and,
to the extent of the Assigned  Interest,  shall have the obligations of a Lender
thereunder,  (iv) it has received a copy of the Credit Agreement,  together with
copies of the most recent financial statements delivered pursuant to Section 3.1
thereof,  as  applicable,  and such other  documents and  information  as it has
deemed  appropriate  to make its own credit  analysis and decision to enter into
this  Assignment and to purchase the Assigned  Interest on the basis of which it
has made such analysis and decision, and (v) if it is a Foreign Lender, attached
to the Assignment is any  documentation  required to be delivered by it pursuant
to the  terms of the  Credit  Agreement,  duly  completed  and  executed  by the
Assignee; and (b) agrees that (i) it will, independently and without reliance on
the  Administrative  Agent, the Assignor or any other Lender,  and based on such
documents and information as it shall deem appropriate at the time,  continue to
make its own credit  decisions  in taking or not taking  action under the Credit
Documents,  and (ii) it will perform in  accordance  with their terms all of the
obligations  which by the  terms of the  Credit  Documents  are  required  to be
performed by it as a Lender.

               2.   Payments.   From  and  after   the   Effective   Date,   the
Administrative Agent shall make all payments in respect of the Assigned Interest
(including  payments  of  principal,  interest,  fees and other  amounts) to the
Assignor for amounts which have accrued to but excluding the


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Effective Date and to the Assignee for amounts which have accrued from and after
the Effective Date.

               3. General Provisions. This Assignment shall be binding upon, and
inure to the benefit of, the parties hereto and their respective  successors and
assigns.  This Assignment may be executed in any number of  counterparts,  which
together shall constitute one instrument. Delivery of an executed counterpart of
a signature  page of this  Assignment by telecopy shall be effective as delivery
of a manually executed counterpart of this Assignment.  This Assignment shall be
governed by, and construed in accordance with, the law of the State of New York.


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