Document:

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                 MORGAN STANLEY DEAN WITTER SELECT EQUITY TRUST
            MORGAN STANLEY HIGH-TECHNOLOGY 35 INDEX PORTFOLIO 2001-2
                            REFERENCE TRUST AGREEMENT

          This Reference Trust Agreement dated March 20, 2001 between DEAN
WITTER REYNOLDS INC., as Depositor, and The Bank of New York, as Trustee, sets
forth certain provisions in full and incorporates other provisions by reference
to the document entitled "Morgan Stanley Dean Witter Select Equity Trust, Trust
Indenture and Agreement" (the "Basic Agreement") dated September 30, 1993 as
amended on December 30, 1997. Such provisions as are incorporated by reference
constitute a single instrument (the "Indenture").

                                WITNESSETH THAT:
                                ----------------

          In consideration of the premises and of the mutual agreements herein
contained, the Depositor and the Trustee agree as follows:

                                       I.

                     STANDARD TERMS AND CONDITIONS OF TRUST

          Subject to the provisions of Part II hereof, all the provisions
contained in the Basic Agreement are herein incorporated by reference in their
entirety and shall be deemed to be a part of this instrument as fully and to the
same extent as though said provisions had been set forth in full in this
instrument except that the Basic Agreement is hereby amended as follows:

          A.   The first sentence of Section 2.01 is amended to add the
     following language at the end of such sentence: "and/or cash (or a letter
     of credit in lieu of cash) with instructions to the Trustee to purchase one
     or more of such Securities which cash (or cash in an amount equal to the
     face amount of the letter of credit), to the extent not used by the Trustee
     to purchase such Securities within the 90-day period following the first
     deposit of Securities in the Trust, shall be distributed to Unit Holders on
     the Distribution Date next following such 90-day period or such earlier
     date as the Depositor and the Trustee determine".

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                                       -2-

          B.   Section 2.03 is amended to add the following to the end of the
     first paragraph thereof. The number of Units may be increased through a
     split of the Units of decreased through a reverse split thereof, as
     directed by the Depositor, which revised number of Units shall be recorded
     by Trustee on its books.

          C.   The first sentence of Section 2.06 is amended to add the
     following language after "Securities"))": "and/or cash (or a letter of
     credit in lieu of cash) with instructions to the Trustee to purchase one or
     more Additional Securities which cash (or cash in an amount equal to the
     face amount of the letter of credit), to the extent not used by the Trustee
     to purchase such Additional Securities within the 90-day period following
     the first deposit of Securities in the Trust, shall be distributed to Unit
     Holders on the Distribution Date next following such 90-day period or such
     earlier date as the Depositor and the Trustee determine".

          D.   Article III, entitled "Administration of Trust", Section 3.01
     Initial Cost shall be amended as follows:

               Section 3.01 Initial Cost shall be amended to substitute the
following language:

          SECTION 3.01. INITIAL COST The costs of organizing the Trust and sale
     of the Trust Units shall, to the extent of the expenses reimbursable to the
     Depositor provided below, be borne by the Unit Holders, PROVIDED, HOWEVER,
     that, to the extent all of such costs are not borne by Unit Holders, the
     amount of such costs not borne by Unit Holders shall be borne by the
     Depositor and, PROVIDED FURTHER, HOWEVER, that the liability on the part of
     the Depositor under this section shall not include any fees or other
     expenses incurred in connection with the administration of the Trust
     subsequent to the deposit referred to in Section 2.01. Upon notification
     from the Depositor that the primary offering period is concluded, the
     Trustee shall withdraw from the Account or Accounts specified in the
     Prospectus or, if no Account is therein specified, from the Principal
     Account, and pay to the Depositor the Depositor's reimbursable expenses of
     organizing the Trust and sale of the Trust Units in an amount certified to
     the Trustee by the Depositor. If the balance of the Principal Account is
     insufficient to make such withdrawal, the Trustee shall, as di-

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                                       -3-

     rected by the Depositor, sell Securities identified by the Depositor, or
     distribute to the Depositor Securities having a value, as determined under
     Section 4.01 as of the date of distribution, sufficient for such
     reimbursement. The reimbursement provided for in this section shall be for
     the account of the Unitholders of record at the conclusion of the primary
     offering period and shall not be reflected in the computation of the Unit
     Value prior thereto. As used herein, the Depositor's reimbursable expenses
     of organizing the Trust and sale of the Trust Units shall include the cost
     of the initial preparation and typesetting of the registration statement,
     prospectuses (including preliminary prospectuses), the indenture, and other
     documents relating to the Trust, SEC and state blue sky registration fees,
     the cost of the initial valuation of the portfolio and audit of the Trust,
     the initial fees and expenses of the Trustee, and legal and other out-of-
     pocket expenses related thereto, but not including the expenses incurred in
     the printing of preliminary prospectuses and prospectuses, expenses
     incurred in the preparation and printing of brochures and other advertising
     materials and any other selling expenses. Any cash which the Depositor has
     identified as to be used for reimbursement of expenses pursuant to this
     Section shall be reserved by the Trustee for such purpose and shall not be
     subject to distribution or, unless the Depositor otherwise directs, used
     for payment of redemptions in excess of the per-Unit amount allocable to
     Units tendered for redemption.

          E.   The third paragraph of Section 3.05 is hereby amended to add the
     following sentence after the first sentence thereof: "Depositor may direct
     the Trustee to invest the proceeds of any sale of Securities not required
     for the redemption of Units in eligible money market instruments selected
     by the Depositor which will include only negotiable certificates of deposit
     or time deposits of domestic banks which are members of the Federal Deposit
     Insurance Corporation and which have, together with their branches or
     subsidiaries, more than $2 billion in total assets, except that
     certificates of deposit or time deposits of smaller domestic banks may be
     held provided the deposit does not exceed the insurance coverage on the
     instrument (which currently is $100,000), and provided further that the
     Trust's aggregate holding of certificates of deposit or time deposits
     issued by the Trustee may not ex-

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                                       -4-

     ceed the insurance coverage of such obligations and U.S. Treasury notes or
     bills (which shall be held until the maturity thereof) each of which
     matures prior to the  earlier of the next following Distribution Date or 90
     days after receipt, the principal thereof and interest thereon (to the
     extent such interest is not used to pay Trust expenses) to be distributed
     on the earlier of the 90th day after receipt or the next following
     Distribution Date."

          F.   The first sentence of each of Sections 3.10, 3.11 and 3.12 is
     amended to insert the following language at the beginning of such sentence,
     "Except as otherwise provided in Section 3.13,".

          G.   The following new Section 3.13 is added

          Section 3.13. EXTRAORDINARY EVENT-SECURITY RETENTION AND VOTING. In
     the event the Trustee is notified of any action to be taken or proposed to
     be taken by holders of the securities held by the Trust in connection with
     any proposed merger, reorganization, spin-off, split-off or split-up by the
     issuer of stock or securities held in the Trust, the Trustee shall take
     such action or refrain from taking any action, as appropriate, so as to
     insure that the securities are voted as closely as possible in the same
     manner and in the same general proportion as are the securities held by
     owners other than the Trust. If stock or securities are received by the
     Trustee, with or without cash, as a result of any merger, reorganization,
     spin-off, split-off or split-up by the issuer of stock or securities held
     in the Trust, the Trustee at the direction of the Depositor may retain such
     stock or securities in the Trust. Neither the Depositor nor the Trustee
     shall be liable to any person for any action or failure to take action with
     respect to this section.

          H.   Section 1.01 is amended to add the following definition: (9)
     "Deferred Sales Charge" shall mean any deferred sales charge payable in
     accordance with the provisions of Section 3.14 hereof, as set forth in the
     prospectus for a Trust. Definitions following this definition (9) shall be
     renumbered.

          I.   Section 3.05 is hereby amended to add the following paragraph
     after the end thereof: On each Deferred Sales Charge payment date set forth
     in the prospectus for

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                                       -5-

     a Trust, the Trustee shall pay the account created pursuant to Section 3.14
     the amount of the Deferred Sales Charge payable on each such date as stated
     in the prospectus for a Trust. Such amount shall be withdrawn from the
     Principal Account from the amounts therein designated for such purpose.

          J.   Section 3.06B(3) shall be amended by adding the following: "and
     any Deferred Sales Charge paid".

          K.   Section 3.08 shall be amended by adding the following at the end
     thereof: "In order to pay the Deferred Sales Charge, the Trustee shall sell
     or liquidate an amount of Securities at such time and from time to time and
     in such manner as the Depositor shall direct such that the proceeds of such
     sale or liquidation shall equal the amount required to be paid to the
     Depositor pursuant to the Deferred Sales Charge program as set forth in the
     prospectus for a Trust.

          L.   Section 3.14 shall be added as follows:

     Section 3.14. Deferred Sales Charge. If the prospectus for a Trust
     specifies a Deferred Sales Charge, the Trustee shall, on the dates
     specified in and as permitted by the prospectus, withdraw from the Income
     Account if such account is designated in the prospectus as the source of
     the payments of the Deferred Sales Charge, or to the extent funds are not
     available in that account or if such account is not so designated, from the
     Principal Account, an amount per Unit specified in the prospectus and
     credit such amount to a special, non-Trust account maintained at the
     Trustee out of which the Deferred Sales Charge will be distributed to the
     Depositor. If the Income Account is not designated as the source of the
     Deferred Sales Charge payment or if the balances in the Income and
     Principal Accounts are insufficient to make any such withdrawal, the
     Trustee shall, as directed by the Depositor, either advance funds, if so
     agreed to by the Trustee, in an amount equal to the proposed withdrawal and
     be entitled to reimbursement of such advance upon the deposit of additional
     monies in the Income Account or the Principal Account, sell Securities and
     credit the proceeds thereof to such special Depositor's account or credit
     Securities in kind to such special Depositor's Account. Such directions
     shall identify the Securities, if any, to be

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                                       -6-

     sold or distributed in kind and shall contain, if the Trustee is directed
     by the Depositor to sell a Security, instructions as to execution of such
     sales. If a Unit Holder redeems Units prior to full payment of the Deferred
     Sales Charge, the Trustee shall, if so provided in the prospectus, on the
     Redemption Date, withhold from the Redemption Price payment to such Unit
     Holder an amount equal to the unpaid portion of the Deferred Sales Charge
     and distribute such amount to such special Depositor's account or, if the
     Depositor shall purchase such Unit pursuant to the terms of Section 5.02
     hereof, the Depositor shall pay the Redemption Price for such Unit less the
     unpaid portion of the Deferred Sales Charge. The Depositor may at any time
     instruct the Trustee to distribute to the Depositor cash or Securities
     previously credited to the special Depositor's account.

          M.   Reference to "Dean Witter Select Equity Trust" is replaced by
     "Morgan Stanley Dean Witter Select Equity Trust".

                                       II.

                      SPECIAL TERMS AND CONDITIONS OF TRUST

          The following special terms and conditions are hereby agreed to:

          A.   The Trust is denominated Morgan Stanley Dean Witter Select Equity
Trust Morgan Stanley High-Technology 35 Index Portfolio 2001-2 (the "High-Tech
Trust").

          B.   The publicly traded stocks listed in Schedule A hereto are those
which, subject to the terms of this Indenture, have been or are to be deposited
in trust under this Indenture.

          C.   The term, "Depositor" shall mean Dean Witter Reynolds Inc.

          D.   The aggregate number of Units referred to in Sections 2.03 and
9.01 of the Basic Agreement is 25,539 for the High-Tech Trust.

          E.   A Unit is hereby declared initially equal to
1/25,539th for the High-Tech Trust.

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                                       -7-

          F.   The term "In-Kind Distribution Date" shall mean May 22, 2002.

          G.   The term "Record Dates" shall mean December 1, 2001, and June 19,
2002 and such other date as the Depositor may direct.

          H.   The term "Distribution Dates shall mean December 15, 2001 and on
or about June 26, 2002 and such other date as the Depositor may direct.

          I.   The term "Termination Date" shall mean June 19, 2002.

          J.   The Depositor's Annual Portfolio Supervision Fee shall be a
maximum of $0.25 per 100 Units.

          K.   The Trustee's Annual Fee as defined in Section 6.04 of the
Indenture shall be $0.72 per 100 Units.

          L.   For a Unit Holder to receive an "in-kind" distribution during the
life of the Trust, such Unit Holder must tender at least 25,000 Units for
redemption. There is no minimum amount of Units that a Unit Holder must tender
in order to receive an "in-kind" distribution on the In-Kind Date or in
connection with a rollover.

          M.   The Indenture is amended to provide that the period during which
the Trustee shall liquidate the Trust Securities shall not exceed 14 business
days commencing on the first business day following the In-Kind Date.

               (Signatures and acknowledgments on separate pages)

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                                       -8-

          The Schedule of Portfolio Securities in the prospectus included in
this Registration Statement is hereby incorporated by reference herein as
Schedule A hereto.<PAGE>

                                                                  EXECUTION COPY

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                            KEY ENERGY SERVICES, INC.

                              SERIES A AND SERIES B
                          8 3/8% SENIOR NOTES DUE 2008

                            -------------------------

                                    INDENTURE

                            Dated as of March 6, 2001

                            -------------------------

                            -------------------------

                            THE CHASE MANHATTAN BANK

                                     Trustee

                            -------------------------

================================================================================

<PAGE>

                                     CROSS-REFERENCE TABLE*

<TABLE>
<CAPTION>

TRUST INDENTURE
  ACT SECTION                                                             INDENTURE SECTION
<S>                                                                       <C>
  310(a)(1).............................................................          7.10
     (a)(2).............................................................          7.10
     (a)(3).............................................................          N.A.
     (a)(4).............................................................          N.A.
     (a)(5).............................................................          7.10
     (b)................................................................          7.10
     (c)................................................................          N.A.
  311(a)................................................................          7.11
     (b)................................................................          7.11
     (c)................................................................          N.A.
  312(a)................................................................          2.05
     (b)................................................................         11.03
     (c)................................................................         11.03
  313(a)................................................................          7.06
     (b)(1).............................................................          N.A.
     (b)(2).............................................................          7.07
     (c)................................................................       7.06;11.02
     (d)................................................................          7.06
  314(a)................................................................       4.03;11.02
     (b)................................................................          N.A.
     (c)(1).............................................................         11.04
     (c)(2).............................................................         11.04
     (c)(3).............................................................          N.A.
     (e)................................................................         11.05
     (f)................................................................          N.A.
  315(a)................................................................          7.01
     (b)................................................................       7.05,11.02
     (c)................................................................          7.01
     (d)................................................................          7.01
     (e)................................................................          6.11
  316(a) (last sentence)................................................          2.09
     (a)(1)(A)..........................................................          6.05
     (a)(1)(B)..........................................................          6.04
     (a)(2).............................................................          N.A.
     (b)................................................................          6.07
     (c)................................................................          2.12
  317(a)(1).............................................................          6.08
     (a)(2).............................................................          6.09
     (b)................................................................          2.04
  318(a)................................................................         11.01
     (b)................................................................          N.A.
     (c)................................................................         11.01
</TABLE>

  N.A. means not applicable.
  * This Cross Reference Table is not part of the Indenture.

<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                               PAGE

                  ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE
<S>                                                                                                            <C>
Section 1.01.     Definitions.....................................................................................1
Section 1.02.     Other Definitions..............................................................................16
Section 1.03.     Incorporation by Reference of Trust Indenture Act..............................................16
Section 1.04.     Rules of Construction..........................................................................17

                                             ARTICLE 2 THE NOTES

Section 2.01.     Form and Dating................................................................................17
Section 2.02.     Execution and Authentication...................................................................18
Section 2.03.     Registrar and Paying Agent.....................................................................18
Section 2.04.     Paying Agent to Hold Money in Trust............................................................19
Section 2.05.     Holder Lists...................................................................................19
Section 2.06.     Transfer and Exchange..........................................................................19
Section 2.07.     Replacement Notes..............................................................................30
Section 2.08.     Outstanding Notes..............................................................................30
Section 2.09.     Treasury Notes.................................................................................31
Section 2.10.     Temporary Notes................................................................................31
Section 2.11.     Cancellation...................................................................................31
Section 2.12.     Defaulted Interest.............................................................................31
Section 2.13.     CUSIP Numbers..................................................................................32

                                      ARTICLE 3 REDEMPTION AND PREPAYMENT

Section 3.01.     Notices to Trustee.............................................................................32
Section 3.02.     Selection of Notes to Be Redeemed..............................................................32
Section 3.03.     Notice of Redemption...........................................................................32
Section 3.04.     Effect of Notice of Redemption.................................................................33
Section 3.05.     Deposit of Redemption Price....................................................................33
Section 3.06.     Notes Redeemed in Part.........................................................................34
Section 3.07.     Optional Redemption............................................................................34
Section 3.08.     Mandatory Redemption...........................................................................34
Section 3.09.     Offer to Purchase by Application of Excess Proceeds............................................34

                                              ARTICLE 4 COVENANTS

Section 4.01.     Payment of Notes...............................................................................36
Section 4.02.     Maintenance of Office or Agency................................................................36
Section 4.03.     Reports........................................................................................37
Section 4.04.     Compliance Certificate.........................................................................37
Section 4.05.     Taxes..........................................................................................38
Section 4.06.     Stay, Extension and Usury Laws.................................................................38
Section 4.07.     Restricted Payments............................................................................38
Section 4.08.     Dividend and Other Payment Restrictions Affecting Subsidiaries.................................40
Section 4.09.     Incurrence of Indebtedness and Issuance of Preferred Stock.....................................41
Section 4.10.     Asset Sales....................................................................................43
Section 4.11.     Transactions with Affiliates...................................................................44
Section 4.12.     Liens..........................................................................................45
Section 4.13.     Business Activities............................................................................45
Section 4.14.     Corporate Existence............................................................................45

                                       i
<PAGE>

Section 4.15.     Offer to Repurchase Upon Change of Control.....................................................45
Section 4.16.     Intentionally Omitted..........................................................................46
Section 4.17.     No Amendment of Subordination Provisions.......................................................46
Section 4.18.     Limitation on Sale and Leaseback Transactions..................................................47
Section 4.19.     Designation of Restricted and Unrestricted Subsidiaries........................................47
Section 4.20.     Limitation on Issuances of Guarantees of Indebtedness; Additional Guarantors...................47
Section 4.21.     Payments for Consent...........................................................................48
Section 4.22      Suspended Covenants............................................................................48

                                               ARTICLE 5 SUCCESSORS

Section 5.01.     Merger, Consolidation, or Sale of Assets.......................................................48
Section 5.02.     Successor Corporation Substituted..............................................................49

                                     ARTICLE 6 DEFAULTS AND REMEDIES

Section 6.01.     Events of Default..............................................................................49
Section 6.02.     Acceleration...................................................................................51
Section 6.03.     Other Remedies.................................................................................52
Section 6.04.     Waiver of Past Defaults........................................................................52
Section 6.05.     Control by Majority............................................................................52
Section 6.06.     Limitation on Suits............................................................................52
Section 6.07.     Rights of Holders of Notes to Receive Payment..................................................53
Section 6.08.     Collection Suit by Trustee.....................................................................53
Section 6.09.     Trustee May File Proofs of Claim...............................................................53
Section 6.10.     Priorities.....................................................................................54
Section 6.11.     Undertaking for Costs..........................................................................54

                                               ARTICLE 7 TRUSTEE

Section 7.01.     Duties of Trustee..............................................................................54
Section 7.02.     Rights of Trustee..............................................................................55
Section 7.03.     Individual Rights of Trustee...................................................................56
Section 7.04.     Trustee's Disclaimer...........................................................................56
Section 7.05.     Notice of Defaults.............................................................................57
Section 7.06.     Reports by Trustee to Holders of the Notes.....................................................57
Section 7.07.     Compensation and Indemnity.....................................................................57
Section 7.08.     Replacement of Trustee.........................................................................58
Section 7.09.     Successor Trustee by Merger, etc...............................................................59
Section 7.10.     Eligibility; Disqualification..................................................................59
Section 7.11.     Preferential Collection of Claims Against Company..............................................59

                  ARTICLE 8 LEGAL DEFEASANCE AND COVENANT DEFEASANCE

Section 8.01.     Option to Effect Legal Defeasance or Covenant Defeasance.......................................59
Section 8.02.     Legal Defeasance and Discharge.................................................................59
Section 8.03.     Covenant Defeasance............................................................................60
Section 8.04.     Conditions to Legal or Covenant Defeasance.....................................................60
Section 8.05.     Deposited Money and Government Securities to be Held in Trust; Other Miscellaneous Provisions..62
Section 8.06.     Repayment to Company...........................................................................62
Section 8.07.     Reinstatement..................................................................................62

                                      ii
<PAGE>

                           ARTICLE 9 AMENDMENT, SUPPLEMENT AND WAIVER

Section 9.01.     Without Consent of Holders of Notes............................................................63
Section 9.02.     With Consent of Holders of Notes...............................................................63
Section 9.03.     Compliance with Trust Indenture Act............................................................65
Section 9.04.     Revocation and Effect of Consents..............................................................65
Section 9.05.     Notation on or Exchange of Notes...............................................................65
Section 9.06.     Trustee to Sign Amendments, etc................................................................65

                                   ARTICLE 10 SATISFACTION AND DISCHARGE

Section 10.01.    Satisfaction and Discharge.....................................................................65
Section 10.02.    Application of Trust Money.....................................................................66

                                         ARTICLE 11 MISCELLANEOUS

Section 11.01.    Trust Indenture Act Controls...................................................................67
Section 11.02.    Notices........................................................................................67
Section 11.03.    Communication by Holders of Notes with Other Holders of Notes..................................68
Section 11.04.    Certificate and Opinion as to Conditions Precedent.............................................68
Section 11.05.    Statements Required in Certificate or Opinion..................................................68
Section 11.06.    Rules by Trustee and Agents....................................................................69
Section 11.07.    No Personal Liability of Directors, Officers, Employees and Stockholders.......................69
Section 11.08.    Governing Law..................................................................................69
Section 11.09.    No Adverse Interpretation of Other Agreements..................................................69
Section 11.10.    Successors.....................................................................................69
Section 11.11.    Severability...................................................................................69
Section 11.12.    Counterpart Originals..........................................................................69
Section 11.13.    Table of Contents, Headings, etc...............................................................70

                                         ARTICLE 12 NOTE GUARANTEES

Section 12.01.    Guarantee......................................................................................70
Section 12.02.    Limitation on Guarantor Liability..............................................................71
Section 12.03.    Execution and Delivery of Note Guarantee.......................................................71
Section 12.04.    Guarantors May Consolidate, etc., on Certain Terms.............................................71
Section 12.05.    Releases Following Sale of Assets..............................................................72
</TABLE>

                                        iii
<PAGE>

                                    EXHIBITS

Exhibit A      FORM OF NOTE
Exhibit B      FORM OF CERTIFICATE OF TRANSFER
Exhibit C      FORM OF CERTIFICATE OF EXCHANGE
Exhibit D      FORM OF NOTE GUARANTEE
Exhibit E      FORM OF SUPPLEMENTAL INDENTURE

                                      iv

<PAGE>

            INDENTURE dated as of March 6, 2001 between Key Energy Services,
Inc., a Maryland corporation (the "Company"), the Guarantors (as defined in
Section 1.01 hereof) and The Chase Manhattan Bank, a New York banking
corporation, as trustee (the "Trustee").

            The Company, the Guarantors and the Trustee agree as follows for the
benefit of each other and for the equal and ratable benefit of the Holders of
the 8 3/8% Series A Senior Notes due 2008 (the "Series A Notes") and the 8 3/8%
Series B Senior Notes due 2008 (the "Series B Notes" and, together with the
Series A Notes, the "Notes"):

                                    ARTICLE 1
                          DEFINITIONS AND INCORPORATION
                                  BY REFERENCE

SECTION 1.01.     DEFINITIONS.

            "144A GLOBAL NOTE" means a global note substantially in the form of
Exhibit A hereto bearing the Global Note Legend and the Private Placement Legend
and deposited with or on behalf of, and registered in the name of, the
Depositary or its nominee that will be issued in a denomination equal to the
outstanding principal amount of the Notes sold in reliance on Rule 144A.

            "ACQUIRED DEBT" means, with respect to any specified Person: (i)
Indebtedness of any other Person existing at the time such other Person is
merged with or into or became a Subsidiary of such specified Person, whether or
not such Indebtedness is incurred in connection with, or in contemplation of,
such other Person merging with or into, or becoming a Subsidiary of, such
specified Person; and (ii) Indebtedness secured by a Lien encumbering any asset
acquired by such specified Person.

            "AFFILIATE" of any specified Person means any other Person directly
or indirectly controlling or controlled by or under direct or indirect common
control with such specified Person. For purposes of this definition, "control,"
as used with respect to any Person, shall mean the possession, directly or
indirectly, of the power to direct or cause the direction of the management or
policies of such Person, whether through the ownership of voting securities, by
agreement or otherwise; PROVIDED that beneficial ownership of 10% or more of the
Voting Stock of a Person shall be deemed to be control. For purposes of this
definition, the terms "controlling," "controlled by" and "under common control
with" shall have correlative meanings.

            "AGENT" means any Registrar, Paying Agent or co-registrar.

            "APPLICABLE PROCEDURES" means, with respect to any transfer or
exchange of or for beneficial interests in any Global Note, the rules and
procedures of the Depositary, Euroclear and Clearstream that apply to such
transfer or exchange.

            "ASSET SALE" means: (i) the sale, lease, conveyance or other
disposition of any assets or rights, other than sales of inventory in the
ordinary course of business consistent with past practices and sales of accounts
receivables under a Credit Facility permitted to be incurred as Indebtedness;
PROVIDED that the sale, conveyance or other disposition of all or substantially
all of the assets of the Company and its Restricted Subsidiaries taken as a
whole will be governed by Section 4.15 hereof and/or Section 5.01 hereof and not
by Section 4.10 hereof and (ii) the issuance of Equity Interests by any of the
Company's Restricted Subsidiaries or the sale of Equity Interests in any of its
Subsidiaries. Notwithstanding the

                                       1
<PAGE>

preceding, the following items shall not be deemed to be Asset Sales: (1) any
single transaction or series of related transactions that: (a) involves assets
having a fair market value of less than $2.0 million; or (b) results in net
proceeds to the Company and its Restricted Subsidiaries of less than $2.0
million; (2) a transfer of assets between or among the Company and any
Restricted Subsidiary; (3) an issuance of Equity Interests by a Restricted
Subsidiary to the Company or to another Restricted Subsidiary; and (4) a
Restricted Payment that is permitted by Section 4.07 hereof.

            "ATTRIBUTABLE DEBT" in respect of a sale and leaseback transaction
means, at the time of determination, the present value of the obligation of the
lessee for net rental payments during the remaining term of the lease included
in such sale and leaseback transaction including any period for which such
lease has been extended or may, at the option of the lessor, be extended. Such
present value shall be calculated using a discount rate equal to the rate of
interest implicit in such transaction, determined in accordance with GAAP.

            "BANKRUPTCY LAW" means Title 11, U.S. Code or any similar federal
or state law for the relief of debtors.

            "BENEFICIAL OWNER" has the meaning assigned to such term in Rule
13d-3 and Rule 13d-5 under the Exchange Act, except that in calculating the
beneficial ownership of any particular "person" (as such term is used in
Section 13(d)(3) of the Exchange Act), such "person" shall be deemed to have
beneficial ownership of all securities that such "person" has the right to
acquire, whether such right is currently exercisable or is exercisable only
upon the occurrence of a subsequent condition.

            "BOARD OF DIRECTORS" means (i) with respect to a corporation, the
board of directors, or a duly authorized committee thereof, of the corporation;
(ii) with respect to a partnership, the Board of Directors of the general
partner of the partnership; and (iii) with respect to any other Person, the
board or committee of such Person serving a similar function.

            "BROKER-DEALER" has the meaning set forth in the Registration
Rights Agreement.

            "BUSINESS DAY" means any day other than a Legal Holiday.

            "CAPITAL LEASE OBLIGATION" means, at the time any determination
thereof is to be made, the amount of the liability in respect of a capital
lease that would at that time be required to be capitalized on a balance sheet
in accordance with GAAP.

            "CAPITAL STOCK" means: (i) in the case of a corporation, corporate
stock; (ii) in the case of an association or business entity, any and all
shares, interests, participations, rights or other equivalents (however
designated) of corporate stock; (iii) in the case of a partnership or limited
liability company, partnership or membership interests (whether general or
limited); and (iv) any other interest or participation that confers on a Person
the right to receive a share of the profits and losses of, or distributions of
assets of, the issuing Person.

            "CASH EQUIVALENTS" means: (i) United States dollars; (ii)
securities issued or directly and fully guaranteed or insured by the United
States government or any agency or instrumentality thereof (provided that the
full faith and credit of the United States is pledged in support thereof)
having maturities of not more than twelve months from the date of acquisition;
(iii) certificates of deposit and eurodollar time deposits with maturities of
twelve months or less from the date of acquisition, bankers' acceptances with
maturities not exceeding twelve months and overnight bank deposits, in each
case, with any

                                       2
<PAGE>

domestic commercial bank having capital and surplus in excess of $500 million
and a Thompson Bank Watch Rating of "B" or better; (iv) repurchase obligations
with a term of not more than thirty days for underlying securities of the types
described in clauses (ii) and (iii) above entered into with any financial
institution meeting the qualifications specified in clause (iii) above; (v)
commercial paper having the highest rating obtainable from Moody's Investors
Service, Inc. or Standard & Poor's Corporation and in each case maturing within
six months after the date of acquisition; and (vi) money market funds at least
95% of the assets of which constitute Cash Equivalents of the kinds described
in clauses (i) through (v) of this definition.

            "CHANGE OF CONTROL" means the occurrence of any of the following:
(i) the sale, transfer, conveyance or other disposition (other than by way of
merger or consolidation), in one or a series of related transactions, of all or
substantially all of the assets of the Company and its Subsidiaries taken as a
whole to any "person" (as such term is used in Section 13(d)(3) of the Exchange
Act); (ii) the adoption of a plan relating to the liquidation or dissolution of
the Company; (iii) the consummation of any transaction (including, without
limitation, any merger or consolidation) the result of which is that any
"person" (as defined above), becomes the Beneficial Owner, directly or
indirectly, of more than 50% of the Voting Stock of the Company, measured by
voting power rather than number of shares; (iv) the first day on which a
majority of the members of the Board of Directors of the Company are not
Continuing Directors; or (v) the Company consolidates with, or merges with or
into, any Person, or any Person consolidates with, or merges with or into, the
Company, in any such event pursuant to a transaction in which any of the
outstanding Voting Stock of the Company is converted into or exchanged for
cash, securities or other property, other than any such transaction where the
Voting Stock of the Company outstanding immediately prior to such transaction
is converted into or exchanged for Voting Stock (other than Disqualified Stock)
of the surviving or transferee Person constituting a majority of the
outstanding shares of such Voting Stock of such surviving or transferee Person
immediately after giving effect to such issuance. For the purposes of this
definition of "Change of Control", any transfer of an equity interest of an
entity that was formed for the purpose of acquiring Voting Stock of the Company
will be deemed to be a transfer of an equity interest in the Company.

            "CLEARSTREAM" means Clearstream Banking.

            "COMPANY" means Key Energy Services, Inc., and any and all
successors thereto.

            "CONSOLIDATED CASH FLOW" means, with respect to any Person for any
period, the Consolidated Net Income of such Person for such period PLUS: (i) an
amount equal to any extraordinary loss plus any net loss realized in connection
with an Asset Sale, to the extent such losses were deducted in computing such
Consolidated Net Income; PLUS (ii) provision for taxes based on income or
profits of such Person and its Restricted Subsidiaries for such period, to the
extent that such provision for taxes was deducted in computing such
Consolidated Net Income; PLUS (iii) consolidated interest expense of such
Person and its Restricted Subsidiaries for such period, whether paid or accrued
and whether or not capitalized (including, without limitation, amortization of
debt issuance costs and original issue discount, non-cash interest payments,
the interest component of any deferred payment obligations, the interest
component of all payments associated with Capital Lease Obligations, imputed
interest with respect to Attributable Debt, commissions, discounts and other
fees and charges incurred in respect of letter of credit or bankers' acceptance
financings, and netpayments, if any, pursuant to Hedging Obligations), to the
extent that any such expense was deducted in computing such Consolidated Net
Income; PLUS (iv) depreciation, amortization (including amortization of
goodwill and other intangibles but excluding amortization of prepaid cash
expenses that were paid in a prior period) and other non-cash expenses
including asset

                                       3
<PAGE>

impairment charges pursuant to FASB 121 (excluding any such non-cash expense to
the extent that it represents an accrual of or reserve for cash expenses in any
future period or amortization of a prepaid cash expense that was paid in a
prior period) of such Person and its Restricted Subsidiaries for such period to
the extent that such depreciation, amortization and other non-cash expenses
were deducted in computing such Consolidated Net Income; PLUS (v) the one time
charge (up to $5.0 million) realized in connection with the repurchase of the
unsatisfied portion of the $20.0 million volumetric production payment granted
by Odessa to Norwest Bank Texas, N.A. effective March 1, 2000; MINUS (vi)
non-cash items increasing such Consolidated Net Income for such period, other
than items that were accrued or otherwise recorded in the ordinary course of
business, in each case, on a consolidated basis and determined in accordance
with GAAP.

            "CONSOLIDATED NET INCOME" means, with respect to any specified
Person for any period, the aggregate of the Net Income of such Person and its
Restricted Subsidiaries for such period, on a consolidated basis, determined in
accordance with GAAP; PROVIDED that: (i) the Net Income of any Person that is
not a Restricted Subsidiary or that is accounted for by the equity method of
accounting shall be included only to the extent of the amount of dividends or
distributions paid in cash to the specified Person or a Guarantor; (ii) the Net
Income of any Restricted Subsidiary that is not a Guarantor shall be excluded
to the extent that the declaration or payment of dividends or similar
distributions by that Restricted Subsidiary of that Net Income is not at the
date of determination permitted without any prior governmental approval (that
has not been obtained) or, directly or indirectly, by operation of the terms of
its charter or any agreement, instrument, judgment, decree, order, statute,
rule or governmental regulation applicable to that Restricted Subsidiary or its
stockholders; (iii) the Net Income of any Person acquired in a pooling of
interests transaction for any period prior to the date of such acquisition
shall be excluded; (iv) the Net Income (and loss) of any Unrestricted
Subsidiary shall be excluded, whether or not distributed to the specified
Person or one of its Subsidiaries; and (v) the cumulative effect of a change in
accounting principles shall be excluded.

            "CONTINUING DIRECTORS" means, as of any date of determination, any
member of the Board of Directors of the Company who: (i) was a member of such
Board of Directors on the date of this Indenture; or (ii) was nominated for
election or elected to such Board of Directors with the approval of a majority
of the Continuing Directors who were members of such Board at the time of such
nomination or election.

            "CORPORATE TRUST OFFICE OF THE TRUSTEE" shall be at the address of
the Trustee specified in Section 11.02 hereof or such other address as to which
the Trustee may give notice to the Company.

            "CREDIT FACILITIES" means, with respect to the Company, one or more
debt facilities or commercial paper facilities, in each case with banks or
other institutional lenders providing for revolving credit loans, term loans,
receivables financing (including through the sale of receivables to such
lenders or to special purpose entities formed to borrow from such lenders
against such receivables) or letters of credit, in each case, as amended,
restated, modified, renewed, refunded, replaced or refinanced in whole or in
part from time to time.

            "CUSTODIAN" means the Trustee, as custodian with respect to the
Notes in global form, or any successor entity thereto.

            "DEFAULT" means any event that is or with the passage of time or
the giving of notice or both would be an Event of Default.

                                       4
<PAGE>

            "DEFINITIVE NOTE" means a certificated Note registered in the name
of the Holder thereof and issued in accordance with Section 2.06 hereof,
substantially in the form of Exhibit A hereto except that such Note shall not
bear the Global Note Legend and shall not have the "Schedule of Exchanges of
Interests in the Global Note" attached thereto.

            "DEPOSITARY" means, with respect to the Notes issuable or issued in
whole or in part in global form, the Person specified in Section 2.03 hereof as
the Depositary with respect to the Notes, and any and all successors thereto
appointed as depositary hereunder and having become such pursuant to the
applicable provision of this Indenture.

            "DESIGNATED NONCASH CONSIDERATION" means the fair market value of
noncash consideration received by the Company or one of its Subsidiaries in
connection with an Asset Sale that is designated as Designated Noncash
Consideration pursuant to an Officer's Certificate, setting forth the basis of
such valuation, executed by the Chief Financial Officer of the Company, less the
amount of cash or Cash Equivalents received in connection with a sale of such
Designated Noncash Consideration.

            "DISQUALIFIED STOCK" means any Capital Stock that, by its terms (or
by the terms of any security into which it is convertible, or for which it is
exchangeable, in each case at the option of the holder thereof), or upon the
happening of any event, matures or is mandatorily redeemable, pursuant to a
sinking fund obligation or otherwise, or redeemable at the option of the holder
thereof, in whole or in part, on or prior to the date that is 91 days after the
date on which the Notes mature. Notwithstanding the preceding sentence, any
Capital Stock that would constitute Disqualified Stock solely because the
holders thereof have the right to require the Company to repurchase such Capital
Stock upon the occurrence of a change of control or an asset sale shall not
constitute Disqualified Stock if the terms of such Capital Stock provide that
the Company may not repurchase or redeem any such Capital Stock pursuant to such
provisions unless such repurchase or redemption complies with Section 4.07
hereof.

            "EQUITY INTERESTS" means Capital Stock and all warrants, options or
other rights to acquire Capital Stock (but excluding any debt security that is
convertible into, or exchangeable for, Capital Stock).

            "EQUITY OFFERING" means any sale by the Company of any Equity
Interest (other than Disqualified Stock) of the Company for cash.

            "EUROCLEAR" means Euroclear Bank S.A./N.V., and any successor
thereto, as operator of the Euroclear system.

            "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended.

            "EXCHANGE NOTES" means the Notes issued in the Exchange Offer
pursuant to Section 2.06(f) hereof.

            "EXCHANGE OFFER" has the meaning set forth in the Registration
Rights Agreement.

            "EXCHANGE OFFER REGISTRATION STATEMENT" has the meaning set forth in
the Registration Rights Agreement.

                                       5
<PAGE>

            "EXISTING INDEBTEDNESS" means up to $357.0 million in aggregate
principal amount of Indebtedness of the Company and its Restricted Subsidiaries
in existence on the date of this Indenture, until such amounts are repaid.

            "EXPLORATION AND PRODUCTION ASSETS" means the oil and gas
exploration and production assets of Odessa held by Odessa as of the date of
this Indenture, and any such oil and gas assets received in exchange for oil and
gas assets held by Odessa as of the date of this Indenture.

            "FIXED CHARGES" means, with respect to any Person for any period,
the sum, without duplication, of: (i) the consolidated interest expense of such
Person and its Restricted Subsidiaries for such period, whether paid or accrued,
including, without limitation, amortization of debt issuance costs and original
issue discount, non-cash interest payments, the interest component of any
deferred payment obligations, the interest component of all payments associated
with Capital Lease Obligations, imputed interest with respect to Attributable
Debt, commissions, discounts and other fees and charges incurred in respect of
letter of credit or bankers' acceptance financings, and net payments, if any,
pursuant to Hedging Obligations, but excluding the amortization of fees paid (or
one-time syndication fees owed) prior to the date hereof with respect to (a) any
Credit Facility that was in place prior to the date of this Indenture, (b) the
Notes, (c) the Subordinated Convertible Notes and (d) the Senior Subordinated
Notes; PLUS (ii) the consolidated interest of such Person and its Restricted
Subsidiaries that was capitalized during such period; PLUS (iii) any interest
expense on Indebtedness of another Person that is Guaranteed by such Person or
one of its Restricted Subsidiaries or secured by a Lien on assets of such Person
or one of its Restricted Subsidiaries, whether or not such Guarantee or Lien is
called upon; PLUS (iv) the product of (a) all dividend payments, whether or not
in cash, on any series of preferred stock of such Person or any of its
Restricted Subsidiaries, other than dividend payments on Equity Interests
payable solely in Equity Interests of the Company (other than Disqualified
Stock) or to the Company or a Restricted Subsidiary of the Company, times (b) a
fraction, the numerator of which is one and the denominator of which is one
minus the then current combined federal, state and local statutory tax rate of
such Person, expressed as a decimal, in each case, on a consolidated basis and
in accordance with GAAP.

            "FIXED CHARGE COVERAGE RATIO" means with respect to any specified
Person for any period, the ratio of the Consolidated Cash Flow of such Person
and its Restricted Subsidiaries for such period to the Fixed Charges of such
Person for such period. In the event that the specified Person or any of its
Restricted Subsidiaries incurs, assumes, Guarantees or redeems any Indebtedness
(other than revolving credit borrowings) or issues or redeems preferred stock
subsequent to the commencement of the period for which the Fixed Charge Coverage
Ratio is being calculated but prior to the date on which the event for which the
calculation of the Fixed Charge Coverage Ratio is made (the "Calculation Date"),
then the Fixed Charge Coverage Ratio shall be calculated giving pro forma effect
to such incurrence, assumption, Guarantee or redemption of Indebtedness, or such
issuance or redemption of preferred stock, as if the same had occurred at the
beginning of the applicable four-quarter reference period. In addition, for
purposes of calculating the Fixed Charge Coverage Ratio: (i) acquisitions that
have been made by the specified Person or any of its Restricted Subsidiaries,
including through mergers or consolidations and including any related financing
transactions, during the four-quarter reference period or subsequent to such
reference period and on or prior to the Calculation Date shall be deemed to have
occurred on the first day of the four-quarter reference period and Consolidated
Cash Flow for such reference period shall be calculated without giving effect to
clause (iii) of the proviso set forth in the definition of Consolidated Net
Income; (ii) the Consolidated Cash Flow attributable to discontinued operations,
as determined in accordance with GAAP, and operations or businesses disposed of
prior to the Calculation Date, shall be excluded; and (iii) the Fixed Charges
attributable to discontinued operations, as determined in accordance

                                       6
<PAGE>

with GAAP, and operations or businesses disposed of prior to the Calculation
Date, shall be excluded, but only to the extent that the obligations giving
rise to such Fixed Charges will not be obligations of the specified Person or
any of its Restricted Subsidiaries following the Calculation Date.

            "GAAP" means generally accepted accounting principles set forth in
the opinions and pronouncements of the Accounting Principles Board of the
American Institute of Certified Public Accountants and statements and
pronouncements of the Financial Accounting Standards Board or in such other
statements by such other entity as have been approved by a significant segment
of the accounting profession, which are in effect on the date of this Indenture.

            "GLOBAL NOTES" means, individually and collectively, each of the
Restricted Global Notes and the Unrestricted Global Notes, substantially in the
form of Exhibit A hereto issued in accordance with Section 2.01, 2.06(b)(iv),
2.06(d)(ii) or 2.06(f) hereof.

            "GLOBAL NOTE LEGEND" means the legend set forth in Section
2.06(g)(ii), which is required to be placed on all Global Notes issued under
this Indenture.

            "GOVERNMENT SECURITIES" means direct obligations of, or obligations
guaranteed by, the United States of America, and the payment for which the
United States pledges its full faith and credit.

            "GUARANTEE" means a guarantee other than by endorsement of
negotiable instruments for collection in the ordinary course of business, direct
or indirect, in any manner including, without limitation, letters of credit and
reimbursement agreements in respect thereof, of all or any part of any
Indebtedness.

            "GUARANTORS" means each of: (i) Yale E. Key, Inc., a Texas
corporation; Key Energy Drilling, Inc., a Delaware corporation; WellTech
Eastern, Inc., a Delaware corporation; Odessa Exploration Incorporated, a
Delaware corporation; Kalkaska Oilfield Services, Inc., a Michigan corporation;
Well-Co Oil Service, Inc., a Nevada corporation; Patrick Well Service, Inc., a
Kansas corporation; Ram Oil Well Service, Inc., a New Mexico corporation;
Rowland Trucking Co., Inc., a New Mexico corporation; Landmark Fishing & Rental,
Inc., an Oklahoma corporation; Dunbar Well Service, Inc., a Colorado
corporation; Frontier Well Service, Inc., a Wyoming corporation; Key Rocky
Mountain, Inc., a Delaware corporation; Key Four Corners, Inc., a Delaware
corporation; Jeter Service Co., an Oklahoma corporation; Jeter Well Service,
Inc., an Oklahoma corporation; Jeter Transportation, Inc., an Oklahoma
corporation; Industrial Oilfield Supply, Inc., an Oklahoma corporation; Brooks
Well Servicing, Inc., a Delaware corporation; Updike Brothers, Inc., a Wyoming
corporation; J.W. Gibson Well Service Company, a Delaware corporation; Key
Energy Services-- South Texas, Inc., a Delaware corporation; Key Energy
Services-- California, Inc., a Delaware corporation; Watson Oilfield Service &
Supply, Inc., a Delaware corporation; WellTech Mid-Continent, Inc., a Delaware
corporation; Dawson Production Management, Inc., a Delaware corporation; Dawson
Production Taylor, Inc., a Delaware corporation; Dawson Production Acquisition
Corp., a Delaware corporation; and Dawson Production Partners, L.P., a Delaware
limited partnership; and (ii) any other subsidiary that executes a Subsidiary
Guarantee in accordance with the provisions of this Indenture; and their
respective successors and assigns.

            "HEDGING OBLIGATIONS" means, with respect to any Person, the
obligations of such Person under: (i) interest rate swap agreements, interest
rate cap agreements and interest rate collar agreements; and (ii) other
agreements or arrangements designed to protect such Person against fluctuations
in

                                       7
<PAGE>

commodity prices, interest rates or the value of foreign currencies purchased
or received by the Company the ordinary course of business and not for the
purposes of speculation.

            "HOLDER" means a Person in whose name a Note is registered.

            "IAI GLOBAL NOTE" means the global Note substantially in the form of
Exhibit A-1 hereto bearing the Global Note Legend and the Private Placement
Legend and deposited with or on behalf of and registered in the name of the
Depositary or its nominee that will be issued in a denomination equal to the
outstanding principal amount of the Notes sold to Institutional Accredited
Investors.

            "INDEBTEDNESS" means, with respect to any specified Person, any
indebtedness of such Person, whether or not contingent, in respect of: (i)
borrowed money; (ii) evidenced by bonds, notes, debentures or similar
instruments or letters of credit (or reimbursement agreements in respect
thereof); (iii) banker's acceptances; (iv) Capital Lease Obligations; (v) the
balance deferred and unpaid of the purchase price of any property, except any
such balance that constitutes an accrued expense or trade payable; (vi) any
Hedging Obligations; or (vii) obligations of special purpose entities formed to
borrow money that are secured or financed by accounts receivable of the Company
or any Restricted Subsidiary; if and to the extent any of the preceding items
(other than letters of credit, Hedging Obligations and receivables financings)
would appear as a liability upon a balance sheet of the specified Person
prepared in accordance with GAAP. In addition, the term "Indebtedness" includes
all Indebtedness of others secured by a Lien on any asset of the specified
Person (whether or not such Indebtedness is assumed by the specified Person)
and, to the extent not otherwise included, the Guarantee by such Person of any
indebtedness of any other Person. The amount of any Indebtedness outstanding as
of any date shall be: (i) the accreted value thereof, in the case of any
Indebtedness issued with original issue discount; and (ii) the principal amount
thereof, in the case of any other Indebtedness.

            "INDENTURE" means this Indenture, as amended or supplemented from
time to time.

            "INDIRECT PARTICIPANT" means a Person who holds a beneficial
interest in a Global Note through a Participant.

            "INSTITUTIONAL ACCREDITED INVESTOR" means an institution that is an
"accredited investor" as defined in Rule 501(a)(1), (2), (3) or (7) under the
Securities Act, who are not also QIBs.

            "INVESTMENT GRADE RATING" means a rating equal to or higher than
Baa3 (or the equivalent) by Moody's or BBB- (or the equivalent) by S&P.

            "INVESTMENTS" means, with respect to any Person, all investments by
such Person in other Persons (including Affiliates) in the forms of direct or
indirect loans (including guarantees of Indebtedness or other obligations),
advances or capital contributions (excluding commission, travel and similar
advances to officers and employees made in the ordinary course of business),
purchases or other acquisitions for consideration of Indebtedness, Equity
Interests or other securities, together with all items that are or would be
classified as investments on a balance sheet prepared in accordance with GAAP.
If the Company or any Restricted Subsidiary of the Company sells or otherwise
disposes of any Equity Interests of any direct or indirect Restricted Subsidiary
of the Company such that, after giving effect to any such sale or disposition,
such Person is no longer a Restricted Subsidiary of the Company, the Company
shall be deemed to have made an Investment on the date of any such sale or
disposition equal

                                       8
<PAGE>

to the fair market value of the Equity Interests of such Restricted Subsidiary
not sold or disposed of in an amount determined as provided in Section 4.07
hereof.

            "LEGAL HOLIDAY" means a Saturday, a Sunday or a day on which banking
institutions in the City of New York or at a place of payment are authorized by
law, regulation or executive order to remain closed. If a payment date is a
Legal Holiday at a place of payment, payment may be made at that place on the
next succeeding day that is not a Legal Holiday, and no interest shall accrue on
such payment for the intervening period.

            "LETTER OF TRANSMITTAL" means the letter of transmittal to be
prepared by the Company and sent to all Holders of the Notes for use by such
Holders in connection with the Exchange Offer.

            "LIEN" means, with respect to any asset, any mortgage, lien, pledge,
charge, security interest or encumbrance of any kind in respect of such asset,
whether or not filed, recorded or otherwise perfected under applicable law,
including any conditional sale or other title retention agreement, any lease in
the nature thereof, any option or other agreement to sell or give a security
interest in and any filing of or agreement to give any financing statement under
the Uniform Commercial Code (or equivalent statutes) of any jurisdiction.

            "LIQUIDATED DAMAGES" means all liquidated damages then owing
pursuant to Section 5 of the Registration Rights Agreement.

            "MOODY'S" means Moody's Investors Service, Inc., or any successor to
the rating agency business thereof.

            "NET INCOME" means, with respect to any Person, the net income
(loss) of such Person and its Restricted Subsidiaries, determined in accordance
with GAAP and before any reduction in respect of preferred stock dividends,
excluding, however: (i) any gain or loss together with any related provision for
taxes on such gain or loss realized in connection with: (a) any Asset Sale; or
(b) the disposition of any securities by such Person or any of its Restricted
Subsidiaries or the extinguishment of any Indebtedness of such Person or any of
its Restricted Subsidiaries; and (ii) any extraordinary gain or loss, together
with any related provision for taxes on such extraordinary gain or loss.

            "NET PROCEEDS" means the aggregate cash proceeds received by the
Company or any of its Restricted Subsidiaries in respect of any Asset Sale
(including, without limitation, any cash received upon the sale or other
disposition of any non-cash consideration received in any Asset Sale), net of
the direct costs relating to such Asset Sale, including, without limitation,
legal, accounting and investment banking fees, and sales commissions, and any
relocation expenses incurred as a result thereof, taxes paid or payable as a
result thereof, in each case after taking into account any available tax credits
or deductions and any tax sharing arrangements and amounts required to be
applied to the repayment of Indebtedness, other than Indebtedness under a Credit
Facility, secured by a Lien on the asset or assets that were the subject of such
Asset Sale and any reserve for adjustment in respect of the sale price of such
asset or assets established in accordance with GAAP.

            "NON-RECOURSE DEBT" means Indebtedness: (i) as to which neither the
Company nor any of its Restricted Subsidiaries (a) provides credit support of
any kind (including any undertaking, agreement or instrument that would
constitute Indebtedness), (b) is directly or indirectly liable as a guarantor or
otherwise, or (c) constitutes the lender; (ii) no default with respect to which
(including any rights that the

                                       9
<PAGE>

holders thereof may have to take enforcement action against an Unrestricted
Subsidiary) would permit upon notice, lapse of time or both any holder of any
other Indebtedness (other than the Notes) of the Company or any of its
Restricted Subsidiaries to declare a default on such other Indebtedness or
cause the payment thereof to be accelerated or payable prior to its stated
maturity; and (iii) as to which the lenders have been notified in writing that
they will not have any recourse to the stock or assets of the Company or any of
its Restricted Subsidiaries.

            "NON-U.S. PERSON" means a Person who is not a U.S. Person.

            "NOTE GUARANTEE" means the Guarantee by each Guarantor of the
Company's payment obligations under this Indenture and on the Notes, executed
pursuant to the provisions of this Indenture.

            "NOTES" has the meaning assigned to it in the preamble to this
Indenture.

            "OBLIGATIONS" means any principal, interest, penalties, fees,
indemnifications, reimbursements, damages and other liabilities payable under
the documentation governing any Indebtedness.

            "ODESSA" means Odessa Exploration Incorporated, a Delaware
corporation.

            "OFFERING" means the offering of the Notes by the Company.

            "OFFICER" means, with respect to any Person, the Chairman of the
Board, the Chief Executive Officer, the President, the Chief Operating Officer,
the Chief Financial Officer, the Treasurer, any Assistant Treasurer, the
Controller, the Secretary or any Vice-President of such Person.

            "OFFICERS' CERTIFICATE" means a certificate signed on behalf of the
Company by two Officers of the Company, one of whom must be the principal
executive officer, the principal financial officer, the treasurer or the
principal accounting officer of the Company, that meets the requirements of
Section 11.05 hereof.

            "OPINION OF COUNSEL" means an opinion from legal counsel who is
reasonably acceptable to the Trustee, that meets the requirements of Section
11.05 hereof. The counsel may be an employee of or counsel to the Company, any
Subsidiary of the Company or the Trustee.

            "PARTICIPANT" means, with respect to the Depositary, Euroclear or
Clearstream, a Person who has an account with the Depositary, Euroclear or
Clearstream, respectively (and, with respect to DTC, shall include Euroclear and
Clearstream).

            "PERMITTED BUSINESS" means any of the businesses engaged in by the
Company and its Subsidiaries on the date of this Indenture and all reasonable
extensions thereof and other businesses ancillary or related thereto or to the
oil and gas industry.

            "PERMITTED INVESTMENTS" means: (i) any Investment in the Company or
in a Restricted Subsidiary of the Company that is a Guarantor; (ii) any
Investment in Cash Equivalents; (iii) any Investment by the Company or any
Restricted Subsidiary of the Company in a Person, if as a result of such
Investment: (a) such Person becomes a Restricted Subsidiary of the Company; or
(b) such Person is merged, consolidated or amalgamated with or into, or
transfers or conveys substantially all of its assets to, or is liquidated into,
the Company or a Restricted Subsidiary of the Company; (iv) any Investment made
as a result of the receipt of non-cash consideration from an Asset Sale that was
made pursuant to

                                      10
<PAGE>

and in compliance with Section 4.10 hereof or in connection with the
settlement or release of claims in an insolvency or similar proceeding or a
settlement in lieu of an insolvency or similar proceeding; (v) any
acquisition of assets solely in exchange for the issuance of Equity Interests
(other than Disqualified Stock) of the Company; (vi) other Investments in any
Subsidiary that is not a Guarantor having an aggregate fair market value
(measured on the date each such Investment was made and without giving effect
to subsequent changes in value), which when taken together with all other
Investments made pursuant to this clause (vi) not to exceed $30.0 million
outstanding at any time (without giving effect to any reduction for any
writedown or writeoff of such Investments); and (vii) other Investments in
any Person having an aggregate fair market value (measured on the date each
such Investment was made and without giving effect to subsequent changes in
value), when taken together with all other Investments made pursuant to this
clause (vii) since the date of this Indenture, not to exceed $30.0 million
outstanding at any time (without giving effect to any reduction for any
writedown or writeoff of such Investments).

            "PERMITTED LIENS" means: (i) Liens securing Indebtedness (other than
Indebtedness subordinated to the Notes), Obligations under Credit Facilities and
all Guarantees thereof, in each case, that are permitted by the terms of this
Indenture to be incurred; (ii) Liens in favor of the Company or any Guarantor;
(iii) Liens on property of a Person existing at the time such Person is merged
with or into or consolidated with the Company or any Subsidiary of the Company;
provided that such Liens were not incurred in contemplation of such merger or
consolidation and do not extend to any assets other than those of the Person
merged into or consolidated with the Company; (iv) Liens on property existing at
the time of acquisition thereof by the Company or any Subsidiary of the Company,
provided that such Liens were not incurred in contemplation of such acquisition;
(v) Liens to secure the performance of statutory obligations, surety or appeal
bonds, performance bonds or other obligations of a like nature incurred in the
ordinary course of business; (vi) Liens to secure Indebtedness (including
Capital Lease Obligations) permitted by clause (iv) of the second paragraph of
Section 4.09 hereof covering only the assets acquired with such Indebtedness and
the proceeds thereof; (vii) Liens to secure Indebtedness (including Capital
Lease Obligations) permitted by clause (x) of the second paragraph of Section
4.09 hereof; (viii) Liens existing on the date of this Indenture; (ix) Liens for
taxes, assessments or governmental charges or claims that are not yet delinquent
or that are being contested in good faith by appropriate proceedings promptly
instituted and diligently concluded, provided that any reserve or other
appropriate provision as shall be required in conformity with GAAP shall have
been made therefor; (x) carriers', warehousemen's, mechanics', landlords',
materialmen's, repairmen's or other similar Liens arising in the ordinary course
of business; (xi) Liens consisting of pledges or deposits required in the
ordinary course of business in connection with workers' compensation,
unemployment insurance and other social security legislation; (xii) Liens on
property of the Company or any Subsidiary securing (a) the performance of bids,
trade contacts (other than for borrowed money), leases and statutory
obligations, (b) surety bonds and (c) other obligations of a like nature,
including pledges or deposits made in the ordinary course of business in
connection with workers' compensation, unemployment insurance and other types of
social security legislation, in each case, incurred in the ordinary course of
business; (xiii) easements, rights-of-way, restrictions and other similar
encumbrances incurred in the ordinary course of business which, in the
aggregate, do not interfere with the ordinary conduct of the businesses of the
Company and its Subsidiaries taken as a whole; (xiv) purchase money security
interests on any property acquired by the Company or any Subsidiary in the
ordinary course of business, securing Indebtedness incurred or assumed for the
purpose of financing all or any part of the cost of acquiring such property,
PROVIDED that (a) any such Lien attaches to such property concurrently with or
within 180 days after the acquisition thereof, (b) such Lien attached solely to
the property so acquired in such transaction and the proceeds thereof and (c)
the principal amount of the Indebtedness secured thereby does not exceed 100% of
the costs of such property; (xv) Liens arising solely by virtue of any statutory
or common law provisions

                                      11

<PAGE>

relating to banker's liens, rights of setoff or similar rights and remedies as
to deposit accounts or the funds maintained with a creditor depository
institution, provided that (a) such deposit account is not a dedicated cash
collateral account and is not subject to restrictions against access by the
Company in excess of those set forth by regulations promulgated by the Federal
Reserve Board, and (b) such deposit account is not intended by the Company or
any Subsidiary to provide collateral to the depository institution; (xvi)
extensions, renewals and replacements of Liens referred to in clauses (i)
through (xv) above; PROVIDED that any such extension, renewal or replacement
Lien is limited to the property or assets covered by the Lien extended,
renewed or replaced and does not secure any Indebtedness in principal amount
(or accreted value) in excess of the principal amount (or accreted value)
secured immediately prior to such extension, renewal or replacement; (xvii)
Liens consisting of the rights of lessees with respect to assets leased by the
Company or any Subsidiary to such lessees; and (xviii) Liens incurred in the
ordinary course of business of the Company or any Subsidiary of the Company
with respect to obligations that do not exceed $10.0 million at any one time
outstanding.

            "PERMITTED REFINANCING INDEBTEDNESS" means any Indebtedness of the
Company or any of its Restricted Subsidiaries issued in exchange for, or the net
proceeds of which are used to extend, refinance, renew, replace, defease or
refund other Indebtedness of the Company or any of its Restricted Subsidiaries
(other than intercompany Indebtedness); PROVIDED that: (i) the principal amount
(or accreted value, if applicable) of such Permitted Refinancing Indebtedness
does not exceed the principal amount of (or accreted value, if applicable), plus
accrued interest on, the Indebtedness so extended, refinanced, renewed,
replaced, defeased or refunded (plus the amount of reasonable expenses incurred
in connection therewith); (ii) such Permitted Refinancing Indebtedness has a
final maturity date not sooner than the final maturity date of, and has a
Weighted Average Life to Maturity equal to or greater than the Weighted Average
Life to Maturity of, the Indebtedness being extended, refinanced, renewed,
replaced, defeased or refunded; (iii) if the Indebtedness being extended,
refinanced, renewed, replaced, defeased or refunded is subordinated in right of
payment to the Notes, such Permitted Refinancing Indebtedness has a final
maturity date later than the final maturity date of, and is subordinated in
right of payment to, the Notes on terms at least as favorable to the Holders of
Notes as those contained in the documentation governing the Indebtedness being
extended, refinanced, renewed, replaced, defeased or refunded; and (iv) such
Indebtedness is incurred either by the Company, by the Restricted Subsidiary or
Restricted Subsidiaries which are the obligor or obligors on the Indebtedness
being extended, refinanced, renewed, replaced, defeased or refunded by the
Company and such Restricted Subsidiary or Restricted Subsidiaries, as the case
may be.

            "PERSON" means any individual, corporation, partnership, joint
venture, association, joint-stock company, trust, unincorporated organization or
government or other entity.

            "PRIVATE PLACEMENT LEGEND" means the legend set forth in Section
2.06(g)(i) to be placed on all Notes issued under this Indenture except where
otherwise permitted by the provisions of this Indenture.

            "QIB" means a "qualified institutional buyer" as defined in Rule
144A.

            "QUALIFIED PREFERRED STOCK" means preferred stock of the Company,
provided that when first issued, the Company would, after giving pro forma
effect to such issuance, have been permitted to incur at least $1.00 of
additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test set
forth in the first paragraph of Section 4.09 hereof.

                                      12

<PAGE>

            "RATING AGENCY" means each of S&P and Moody's, or if S&P or Moody's
or both shall not make a rating on the notes publicly available, a nationally
recognized statistical rating agency or agencies, as the case may be, selected
by the Company (as certified by a resolution of the Company's Board of
Directors) which shall be substituted for S&P or Moody's, or both, as the case
may be.

            "REGISTRATION RIGHTS AGREEMENT" means the Registration Rights
Agreement, dated as of March 6, 2001, by and among the Company and the other
parties named on the signature pages thereof, as such agreement may be amended,
modified or supplemented from time to time.

            "REGULATION S" means Regulation S promulgated under the Securities
Act.

            "REGULATION S GLOBAL NOTE" means a global Note bearing the Private
Placement Legend and deposited with or on behalf of the Depositary and
registered in the name of the Depositary or its nominee, issued in a
denomination equal to the outstanding principal amount of the Notes initially
sold in reliance on Rule 903 of Regulation S.

            "RESPONSIBLE OFFICER," when used with respect to the Trustee, any
officer within the corporate trust department of the Trustee, including any vice
president, assistant vice president, assistant secretary, assistant treasurer,
trust officer or any other officer of the Trustee who customarily performs
functions similar to those performed by the Persons who at the time shall be
such officers, respectively, or to whom any corporate trust matter is referred
because of such person's knowledge of and familiarity with the particular
subject and who shall have direct responsibility for the administration of this
Indenture.

            "RESTRICTED DEFINITIVE NOTE" means a Definitive Note bearing the
Private Placement Legend.

            "RESTRICTED GLOBAL NOTE" means a Global Note bearing the Private
Placement Legend.

            "RESTRICTED INVESTMENT" means any Investment other than a Permitted
Investment.

            "RESTRICTED SUBSIDIARY" of a Person means any Subsidiary of such
Person that is not an Unrestricted Subsidiary.

            "RULE 144" means Rule 144 promulgated under the Securities Act.

            "RULE 144A" means Rule 144A promulgated under the Securities Act.

            "RULE 903" means Rule 903 promulgated under the Securities Act.

            "RULE 904" means Rule 904 promulgated the Securities Act.

            "S&P" means Standard & Poor's Ratings Group, Inc., or any successor
to the rating agency business thereof.

            "SEC" means the Securities and Exchange Commission.

            "SECURITIES ACT" means the Securities Act of 1933, as amended.

                                      13

<PAGE>

            "SENIOR SUBORDINATED NOTE INDENTURE" means that certain indenture,
dated January 22, 1999, between the Company and The Bank of New York, as
trustee, as amended or supplemented from time to time, relating to the Senior
Subordinated Notes.

            "SENIOR SUBORDINATED NOTES" means the Company's 14% Senior
Subordinated Notes due 2009 issued pursuant to the Senior Subordinated Note
Indenture.

             "SHELF REGISTRATION STATEMENT" means the Shelf Registration
Statement as defined in the Registration Rights Agreement.

            "SIGNIFICANT SUBSIDIARY" means, at any time, any Subsidiary that, at
such time, would be a "significant subsidiary" as defined in Article 1, Rule
1-02 of Regulation S-X, promulgated pursuant to the Act, as such Regulation is
in effect on the date hereof.

            "STATED MATURITY" means, with respect to any installment of interest
or principal on any series of Indebtedness, the date on which such payment of
interest or principal was scheduled to be paid in the original documentation
governing such Indebtedness or as such scheduled maturity date may have been
deferred, and shall not include any contingent obligations to repay, redeem or
repurchase any such interest or principal prior to the date originally scheduled
for the payment thereof.

            "SUBORDINATED CONVERTIBLE NOTE INDENTURE" means that certain
indenture, dated as of September 25, 1997, between the Company and American
Stock Transfer & Trust Company, as trustee, as amended or supplemented from time
to time, relating to the Subordinated Convertible Notes.

            "SUBORDINATED CONVERTIBLE NOTES" means the Company's 5% Subordinated
Convertible Notes due 2004 issued pursuant to the Subordinated Convertible Note
Indenture.

            "SUBSIDIARY" means, with respect to any Person: (i) any corporation,
association or other business entity of which more than 50% of the total voting
power of shares of Capital Stock entitled (without regard to the occurrence of
any contingency) to vote in the election of directors, managers or trustees
thereof is at the time owned or controlled, directly or indirectly, by such
Person or one or more of the other Subsidiaries of that Person (or a combination
thereof); and (ii) any partnership (a) the sole general partner or the managing
general partner of which is such Person or a Subsidiary of such Person or (b)
the only general partners of which are such Person or of one or more
Subsidiaries of such Person (or any combination thereof).

            "TIA" means the Trust Indenture Act of 1939 (15 U.S.C. Sections
77aaa-77bbbb) as in effect on the date on which this Indenture is qualified
under the TIA.

            "TRUSTEE" means the party named as such above until a successor
replaces it in accordance with the applicable provisions of this Indenture and
thereafter means the successor serving hereunder.

            "UNRESTRICTED DEFINITIVE NOTE" means one or more Definitive Notes
that do not bear and are not required to bear the Private Placement Legend.

            "UNRESTRICTED GLOBAL NOTE" means a permanent global Note
substantially in the form of Exhibit A attached hereto that bears the Global
Note Legend and that has the "Schedule of Exchanges of Interests in the Global
Note" attached thereto, and that is deposited with or on behalf of and
registered in the name of the Depositary, representing a series of Notes that do
not bear the Private Placement Legend.

                                      14

<PAGE>

            "UNRESTRICTED SUBSIDIARY" means any Subsidiary of the Company that
is designated by the Board of Directors as an Unrestricted Subsidiary pursuant
to a Board Resolution, but only to the extent that such Subsidiary: (i) has no
Indebtedness other than Non-Recourse Debt; (ii) is not party to any agreement,
contract, arrangement or understanding with the Company or any Restricted
Subsidiary of the Company unless the terms of any such agreement, contract,
arrangement or understanding are no less favorable to the Company or such
Restricted Subsidiary than those that might be obtained at the time from Persons
who are not Affiliates of the Company; (iii) is a Person with respect to which
neither the Company nor any of its Restricted Subsidiaries has any direct or
indirect obligation (a) to subscribe for additional Equity Interests or (b) to
maintain or preserve such Person's financial condition or to cause such Person
to achieve any specified levels of operating results; (iv) has not guaranteed or
otherwise directly or indirectly provided credit support for any Indebtedness of
the Company or any of its Restricted Subsidiaries; and (v) has at least one
director on its board of directors that is not a director or executive officer
of the Company or any of its Restricted Subsidiaries and has at least one
executive officer that is not a director or executive officer of the Company or
any of its Restricted Subsidiaries. Any designation of a Subsidiary of the
Company as an Unrestricted Subsidiary shall be evidenced to the Trustee by
filing with the Trustee a certified copy of the Board Resolution giving effect
to such designation and an Officers' Certificate certifying that such
designation complied with the preceding conditions and was permitted by Section
4.07 hereof. If, at any time, any Unrestricted Subsidiary would fail to meet the
preceding requirements as an Unrestricted Subsidiary, it shall thereafter cease
to be an Unrestricted Subsidiary for purposes of this Indenture and any
Indebtedness of such Subsidiary shall be deemed to be incurred by a Restricted
Subsidiary of the Company as of such date and, if such Indebtedness is not
permitted to be incurred as of such date under Section 4.09 hereof, the Company
shall be in default of such covenant. The Board of Directors of the Company may
at any time designate any Unrestricted Subsidiary to be a Restricted Subsidiary;
provided that such designation shall be deemed to be an incurrence of
Indebtedness by a Restricted Subsidiary of the Company of any outstanding
Indebtedness of such Unrestricted Subsidiary and such designation shall only be
permitted if (1) such Indebtedness is permitted under Section 4.09 hereof,
calculated on a pro forma basis as if such designation had occurred at the
beginning of the four-quarter reference period and (2) no Default or Event of
Default would be in existence following such designation.

            "U.S. PERSON" means a U.S. person as defined in Rule 902(o) under
the Securities Act.

            "VOTING STOCK" of any Person as of any date means the Capital Stock
of such Person that is at the time entitled to vote in the election of the Board
of Directors of such Person.

            "WEIGHTED AVERAGE LIFE TO MATURITY" means, when applied to any
Indebtedness at any date, the number of years obtained by dividing: (i) the sum
of the products obtained by multiplying (a) the amount of each then remaining
installment, sinking fund, serial maturity or other required payments of
principal, including payment at final maturity, in respect thereof, by (b) the
number of years (calculated to the nearest one-twelfth) that will elapse between
such date and the making of such payment; by (ii) the then outstanding principal
amount of such Indebtedness.

            "WHOLLY OWNED RESTRICTED SUBSIDIARY" of any Person means a
Restricted Subsidiary of such Person all of the outstanding Capital Stock or
other ownership interests of which (other than directors' qualifying shares)
shall at the time be owned by such Person and/or by one or more Wholly Owned
Restricted Subsidiaries of such Person.

                                      15

<PAGE>

            "WHOLLY OWNED SUBSIDIARY" of any Person means a Subsidiary of such
Person all of the outstanding Capital Stock or other ownership interests of
which (other than directors' qualifying shares) shall at the time be owned by
such Person or by one or more Wholly Owned Subsidiaries of such Person or by
such Person and one or more Wholly Owned Subsidiaries of such Person.

SECTION 1.02.     OTHER DEFINITIONS.

<TABLE>
<CAPTION>

                                                                                                Defined in
        Term                                                                                     Section
        ----                                                                                     -------
        <S>                                                                                     <C>
        "AFFILIATE TRANSACTION"............................................................        4.11
        "ASSET SALE".......................................................................        4.10
        "ASSET SALE OFFER".................................................................        3.09
        "AUTHENTICATION ORDER".............................................................        2.02
        "BANKRUPTCY LAW"...................................................................        4.01
        "CHANGE OF CONTROL OFFER"..........................................................        4.15
        "CHANGE OF CONTROL PAYMENT"........................................................        4.15
        "CHANGE OF CONTROL PAYMENT DATE"...................................................        4.15
        "COVENANT DEFEASANCE"..............................................................        8.03
        "EVENT OF DEFAULT".................................................................        6.01
        "EXCESS PROCEEDS"..................................................................        4.10
        "INCUR"............................................................................        4.09
        "LEGAL DEFEASANCE".................................................................        8.02
        "OFFER AMOUNT".....................................................................        3.09
        "OFFER PERIOD".....................................................................        3.09
        "PAYING AGENT".....................................................................        2.03
        "PERMITTED DEBT"...................................................................        4.09
        "PURCHASE DATE"....................................................................        3.09
        "REGISTRAR"........................................................................        2.03
        "RESTRICTED PAYMENTS"..............................................................        4.07
        "UNIT LEGEND"......................................................................        2.06

</TABLE>

SECTION 1.03.     INCORPORATION BY REFERENCE OF TRUST INDENTURE ACT.

            Whenever this Indenture refers to a provision of the TIA, the
provision is incorporated by reference in and made a part of this Indenture.

            The following TIA terms used in this Indenture have the following
meanings:

            "INDENTURE SECURITIES" means the Notes;

            "INDENTURE SECURITY HOLDER" means a Holder of a Note;

            "INDENTURE TO BE QUALIFIED" means this Indenture;

            "INDENTURE TRUSTEE" or "INSTITUTIONAL TRUSTEE" means the Trustee;
and

            "OBLIGOR" on the Notes and the Note Guarantees means the Company and
the Guarantors, respectively, and any successor obligor upon the Notes and the
Note Guarantees, respectively.

                                      16

<PAGE>

            All other terms used in this Indenture that are defined by the TIA,
defined by TIA reference to another statute or defined by SEC rule under the TIA
have the meanings so assigned to them.

SECTION 1.04.     RULES OF CONSTRUCTION.

            Unless the context otherwise requires:

            (a)  a term has the meaning assigned to it;

            (b) an accounting term not otherwise defined has the meaning
assigned to it in accordance with GAAP;

            (c) "or" is not exclusive;

            (d) words in the singular include the plural, and in the plural
include the singular;

            (e)  provisions apply to successive events and transactions; and

            (f) references to sections of or rules under the Securities Act
shall be deemed to include substitute, replacement of successor sections or
rules adopted by the SEC from time to time.

                                    ARTICLE 2
                                    THE NOTES

SECTION 2.01.     FORM AND DATING.

            (a) GENERAL. The Notes and the Trustee's certificate of
authentication shall be substantially in the form of Exhibit A hereto. The Notes
may have notations, legends or endorsements required by law, stock exchange rule
or usage. Each Note shall be dated the date of its authentication. The Notes
shall be in denominations of $1,000 and integral multiples thereof.

            The terms and provisions contained in the Notes shall constitute,
and are hereby expressly made, a part of this Indenture and the Company, the
Guarantors and the Trustee, by their execution and delivery of this Indenture,
expressly agree to such terms and provisions and to be bound thereby. However,
to the extent any provision of any Note conflicts with the express provisions of
this Indenture, the provisions of this Indenture shall govern and be
controlling.

            (b) GLOBAL NOTES. Notes issued in global form shall be substantially
in the form of Exhibit A attached hereto (including the Global Note Legend
thereon and the "Schedule of Exchanges of Interests in the Global Note" attached
thereto). Notes issued in definitive form shall be substantially in the form of
Exhibit A attached hereto (but without the Global Note Legend thereon and
without the "Schedule of Exchanges of Interests in the Global Note" attached
thereto). Each Global Note shall represent such of the outstanding Notes as
shall be specified therein and each shall provide that it shall represent the
aggregate principal amount of outstanding Notes from time to time endorsed
thereon and that the aggregate principal amount of outstanding Notes represented
thereby may from time to time be reduced or increased, as appropriate, to
reflect exchanges and redemptions. Any endorsement of a Global Note to reflect
the amount of any increase or decrease in the aggregate principal amount of
outstanding Notes

                                      17

<PAGE>

represented thereby shall be made by the Trustee or the Custodian, at the
direction of the Trustee, in accordance with instructions given by the Holder
thereof as required by Section 2.06 hereof.

            (c) EUROCLEAR AND CLEARSTREAM PROCEDURES APPLICABLE. The provisions
of the "Operating Procedures of the Euroclear System" and "Terms and Conditions
Governing Use of Euroclear" and the "General Terms and Conditions of Clearstream
Bank" and "Customer Handbook" of Clearstream shall be applicable to transfers of
beneficial interests in the Regulation S Global Notes that are held by
Participants through Euroclear or Clearstream.

SECTION 2.02.     EXECUTION AND AUTHENTICATION.

            Two Officers shall sign the Notes for the Company by manual or
facsimile signature. The Company's seal shall be reproduced on the Notes and may
be in facsimile form.

            If an Officer whose signature is on a Note no longer holds that
office at the time a Note is authenticated, the Note shall nevertheless be
valid.

            A Note shall not be valid until authenticated by the manual
signature of the Trustee. The signature shall be conclusive evidence that the
Note has been authenticated under this Indenture.

            The Trustee shall, upon a written order of the Company signed by one
Officer (an "AUTHENTICATION ORDER"), authenticate Notes for original issue up to
the aggregate principal amount stated in paragraph 4 of the Notes. The aggregate
principal amount of Notes outstanding at any time may not exceed such amount
except as provided in Section 2.07 hereof.

            The Trustee may appoint an authenticating agent acceptable to the
Company to authenticate Notes. An authenticating agent may authenticate Notes
whenever the Trustee may do so. Each reference in this Indenture to
authentication by the Trustee includes authentication by such agent. An
authenticating agent has the same rights as an Agent to deal with Holders or an
Affiliate of the Company.

SECTION 2.03.     REGISTRAR AND PAYING AGENT.

            The Company shall maintain an office or agency where Notes may be
presented for registration of transfer or for exchange ("REGISTRAR") and an
office or agency where Notes may be presented for payment ("PAYING AGENT"). The
Registrar shall keep a register of the Notes and of their transfer and exchange.
The Company may appoint one or more co-registrars and one or more additional
paying agents. The term "Registrar" includes any co-registrar and the term
"Paying Agent" includes any additional paying agent. The Company may change any
Paying Agent or Registrar without notice to any Holder. The Company shall notify
the Trustee in writing of the name and address of any Agent not a party to this
Indenture. If the Company fails to appoint or maintain another entity as
Registrar or Paying Agent, the Trustee shall act as such. The Company or any of
its Subsidiaries may act as Paying Agent or Registrar.

            The Company initially appoints The Depository Trust Company ("DTC")
to act as Depositary with respect to the Global Notes.

            The Company initially appoints the Trustee to act as the Registrar
and Paying Agent and to act as Custodian with respect to the Global Notes.

                                      18

<PAGE>

SECTION 2.04.     PAYING AGENT TO HOLD MONEY IN TRUST.

            The Company shall require each Paying Agent other than the Trustee
to agree in writing that the Paying Agent will hold in trust for the benefit of
Holders or the Trustee all money held by the Paying Agent for the payment of
principal, premium or Liquidated Damages, if any, or interest on the Notes, and
will notify the Trustee of any default by the Company in making any such
payment. While any such default continues, the Trustee may require a Paying
Agent to pay all money held by it to the Trustee. The Company at any time may
require a Paying Agent to pay all money held by it to the Trustee. Upon payment
over to the Trustee, the Paying Agent (if other than the Company or a
Subsidiary) shall have no further liability for the money. If the Company or a
Subsidiary acts as Paying Agent, it shall segregate and hold in a separate trust
fund for the benefit of the Holders all money held by it as Paying Agent. Upon
any bankruptcy or reorganization proceedings relating to the Company, the
Trustee shall serve as Paying Agent for the Notes.

SECTION 2.05.     HOLDER LISTS.

            The Trustee shall preserve in as current a form as is reasonably
practicable the most recent list available to it of the names and addresses of
all Holders and shall otherwise comply with TIA Section 312(a). If the Trustee
is not the Registrar, the Company shall furnish to the Trustee at least seven
Business Days before each interest payment date and at such other times as the
Trustee may request in writing, a list in such form and as of such date as the
Trustee may reasonably require of the names and addresses of the Holders of
Notes and the Company shall otherwise comply with TIA Section 312(a).

SECTION 2.06.     TRANSFER AND EXCHANGE.

            (a) TRANSFER AND EXCHANGE OF GLOBAL NOTES. A Global Note may not be
transferred as a whole except by the Depositary to a nominee of the Depositary,
by a nominee of the Depositary to the Depositary or to another nominee of the
Depositary, or by the Depositary or any such nominee to a successor Depositary
or a nominee of such successor Depositary. All Global Notes will be exchanged by
the Company for Definitive Notes if (i) the Company delivers to the Trustee
notice from the Depositary that it is unwilling or unable to continue to act as
Depositary or that it is no longer a clearing agency registered under the
Exchange Act and, in either case, a successor Depositary is not appointed by the
Company within 120 days after the date of such notice from the Depositary or
(ii) the Company in its sole discretion determines that the Global Notes (in
whole but not in part) should be exchanged for Definitive Notes and delivers a
written notice to such effect to the Trustee. Upon the occurrence of either of
the preceding events in (i) or (ii) above, Definitive Notes shall be issued in
such names as the Depositary shall instruct the Trustee. Global Notes also may
be exchanged or replaced, in whole or in part, as provided in Sections 2.07 and
2.10 hereof. Every Note authenticated and delivered in exchange for, or in lieu
of, a Global Note or any portion thereof, pursuant to this Section 2.06 or
Section 2.07 or 2.10 hereof, shall be authenticated and delivered in the form
of, and shall be, a Global Note. A Global Note may not be exchanged for another
Note other than as provided in this Section 2.06(a), however, beneficial
interests in a Global Note may be transferred and exchanged as provided in
Section 2.06(b), (c) or (f) hereof.

            (b) TRANSFER AND EXCHANGE OF BENEFICIAL INTERESTS IN THE GLOBAL
NOTES. The transfer and exchange of beneficial interests in the Global Notes
shall be effected through the Depositary, in accordance with the provisions of
this Indenture and the Applicable Procedures. Beneficial interests in the
Restricted Global Notes shall be subject to restrictions on transfer comparable
to those set forth herein

                                      19

<PAGE>

to the extent required by the Securities Act. Transfers of beneficial
interests in the Global Notes also shall require compliance with either
subparagraph (i) or (ii) below, as applicable, as well as one or more of the
other following subparagraphs, as applicable:

                 (i)  TRANSFER OF BENEFICIAL INTERESTS IN THE SAME GLOBAL NOTE.
      Beneficial interests in any Restricted Global Note may be transferred to
      Persons who take delivery thereof in the form of a beneficial interest in
      the same Restricted Global Note in accordance with the transfer
      restrictions set forth in the Private Placement Legend; provided, however,
      that prior to the expiration of the Restricted Period, transfers of
      beneficial interests in the Regulation S Global Note may not be made to a
      U.S. Person or for the account or benefit of a U.S. Person (other than an
      Initial Purchaser). Beneficial interests in any Unrestricted Global Note
      may be transferred to Persons who take delivery thereof in the form of a
      beneficial interest in an Unrestricted Global Note. No written orders or
      instructions shall be required to be delivered to the Registrar to effect
      the transfers described in this Section 2.06(b)(i).

                 (ii)  ALL OTHER TRANSFERS AND EXCHANGES OF BENEFICIAL INTERESTS
      IN GLOBAL NOTES. In connection with all transfers and exchanges of
      beneficial interests that are not subject to Section 2.06(b)(i) above, the
      transferor of such beneficial interest must deliver to the Registrar
      either (A)(1) a written order from a Participant or an Indirect
      Participant given to the Depositary in accordance with the Applicable
      Procedures directing the Depositary to credit or cause to be credited a
      beneficial interest in another Global Note in an amount equal to the
      beneficial interest to be transferred or exchanged and (2) instructions
      given in accordance with the Applicable Procedures containing information
      regarding the Participant account to be credited with such increase or (B)
      (1) a written order from a Participant or an Indirect Participant given to
      the Depositary in accordance with the Applicable Procedures directing the
      Depositary to cause to be issued a Definitive Note in an amount equal to
      the beneficial interest to be transferred or exchanged and (2)
      instructions given by the Depositary to the Registrar containing
      information regarding the Person in whose name such Definitive Note shall
      be registered to effect the transfer or exchange referred to in (1) above.
      Upon consummation of an Exchange Offer by the Company in accordance with
      Section 2.06(f) hereof, the requirements of this Section 2.06(b)(ii) shall
      be deemed to have been satisfied upon receipt by the Registrar of the
      instructions contained in the Letter of Transmittal delivered by the
      Holder of such beneficial interests in the Restricted Global Notes. Upon
      satisfaction of all of the requirements for transfer or exchange of
      beneficial interests in Global Notes contained in this Indenture and the
      Notes or otherwise applicable under the Securities Act, the Trustee shall
      adjust the principal amount of the relevant Global Note(s) pursuant to
      Section 2.06(h) hereof.

                 (iii) TRANSFER OF BENEFICIAL INTERESTS TO ANOTHER RESTRICTED
      GLOBAL NOTE. A beneficial interest in any Restricted Global Note may be
      transferred to a Person who takes delivery thereof in the form of a
      beneficial interest in another Restricted Global Note if the transfer
      complies with the requirements of Section 2.06(b)(ii) above and the
      Registrar receives the following:

                      (A) if the transferee will take delivery in the form of a
           beneficial interest in the 144A Global Note, then the transferor must
           deliver a certificate in the form of Exhibit B hereto, including the
           certifications in item (1) thereof;

                      (B) if the transferee will take delivery in the form of a
           beneficial interest in the Regulation S Global Note, then the
           transferor must deliver a certificate in the form of Exhibit B
           hereto, including the certifications in item (2) thereof; and

                                      20

<PAGE>

                      (C) if the transferee will take delivery in the form of a
           beneficial interest in the IAI Global Note, then the transferor must
           deliver a certificate in the form of Exhibit B hereto, including the
           certifications and certificates and Opinion of Counsel required by
           item (3) thereof, if applicable.

                 (iv) TRANSFER AND EXCHANGE OF BENEFICIAL INTERESTS IN A
      RESTRICTED GLOBAL NOTE FOR BENEFICIAL INTERESTS IN THE UNRESTRICTED GLOBAL
      NOTE. A beneficial interest in any Restricted Global Note may be exchanged
      by any holder thereof for a beneficial interest in an Unrestricted Global
      Note or transferred to a Person who takes delivery thereof in the form of
      a beneficial interest in an Unrestricted Global Note if the exchange or
      transfer complies with the requirements of Section 2.06(b)(ii) above and:

                      (A) such exchange or transfer is effected pursuant to the
           Exchange Offer in accordance with the Registration Rights Agreement
           and the holder of the beneficial interest to be transferred, in the
           case of an exchange, or the transferee, in the case of a transfer,
           certifies in the applicable Letter of Transmittal that it is not (1)
           a broker-dealer, (2) a Person participating in the distribution of
           the Exchange Notes or (3) a Person who is an affiliate (as defined in
           Rule 144) of the Company;

                      (B) such transfer is effected pursuant to the Shelf
           Registration Statement in accordance with the Registration Rights
           Agreement;

                      (C) such transfer is effected by a Broker-Dealer pursuant
           to the Exchange Offer Registration Statement in accordance with the
           Registration Rights Agreement; or

                      (D) the Registrar receives the following:

                            (1) if the holder of such beneficial interest in a
                 Restricted Global Note proposes to exchange such beneficial
                 interest for a beneficial interest in an Unrestricted Global
                 Note, a certificate from such holder in the form of Exhibit C
                 hereto, including the certifications in item (1)(a) thereof; or

                            (2) if the holder of such beneficial interest in a
                 Restricted Global Note proposes to transfer such beneficial
                 interest to a Person who shall take delivery thereof in the
                 form of a beneficial interest in an Unrestricted Global Note, a
                 certificate from such holder in the form of Exhibit B hereto,
                 including the certifications in item (4) thereof;

           and, in each such case set forth in this subparagraph (D), if the
           Registrar so requests or if the Applicable Procedures so require, an
           Opinion of Counsel in form reasonably acceptable to the Registrar to
           the effect that such exchange or transfer is in compliance with the
           Securities Act and that the restrictions on transfer contained herein
           and in the Private Placement Legend are no longer required in order
           to maintain compliance with the Securities Act.

                 If any such transfer is effected pursuant to subparagraph (B)
      or (D) above at a time when an Unrestricted Global Note has not yet been
      issued, the Company shall issue and, upon receipt of an Authentication
      Order in accordance with Section 2.02 hereof, the Trustee shall
      authenticate one or more Unrestricted Global Notes in an aggregate
      principal amount equal to the aggregate principal amount of beneficial
      interests transferred pursuant to subparagraph (B) or (D) above.

                                      21

<PAGE>

                 Beneficial interests in an Unrestricted Global Note cannot be
      exchanged for, or transferred to Persons who take delivery thereof in the
      form of, a beneficial interest in a Restricted Global Note.

            (c) TRANSFER OR EXCHANGE OF BENEFICIAL INTERESTS FOR DEFINITIVE
NOTES.

                 (i) BENEFICIAL INTERESTS IN RESTRICTED GLOBAL NOTES TO
      RESTRICTED DEFINITIVE NOTES. If any holder of a beneficial interest in a
      Restricted Global Note proposes to exchange such beneficial interest for a
      Restricted Definitive Note or to transfer such beneficial interest to a
      Person who takes delivery thereof in the form of a Restricted Definitive
      Note, then, upon receipt by the Registrar of the following documentation:

                      (A) if the holder of such beneficial interest in a
           Restricted Global Note proposes to exchange such beneficial interest
           for a Restricted Definitive Note, a certificate from such holder in
           the form of Exhibit C hereto, including the certifications in item
           (2)(a) thereof;

                      (B) if such beneficial interest is being transferred to a
           QIB in accordance with Rule 144A under the Securities Act, a
           certificate to the effect set forth in Exhibit B hereto, including
           the certifications in item (1) thereof;

                      (C) if such beneficial interest is being transferred to a
           Non-U.S. Person in an offshore transaction in accordance with Rule
           903 or Rule 904 under the Securities Act, a certificate to the effect
           set forth in Exhibit B hereto, including the certifications in item
           (2) thereof;

                      (D) if such beneficial interest is being transferred
           pursuant to an exemption from the registration requirements of the
           Securities Act in accordance with Rule 144 under the Securities Act,
           a certificate to the effect set forth in Exhibit B hereto, including
           the certifications in item (3)(a) thereof;

                      (E) if such beneficial interest is being transferred to an
           Institutional Accredited Investor in reliance on an exemption from
           the registration requirements of the Securities Act other than those
           listed in subparagraphs (B) through (D) above, a certificate to the
           effect set forth in Exhibit B hereto, including the certifications,
           certificates and Opinion of Counsel required by item (3) thereof, if
           applicable;

                      (F) if such beneficial interest is being transferred to
           the Company or any of its Subsidiaries, a certificate to the effect
           set forth in Exhibit B hereto, including the certifications in item
           (3)(b) thereof; or

                      (G) if such beneficial interest is being transferred
           pursuant to an effective registration statement under the Securities
           Act, a certificate to the effect set forth in Exhibit B hereto,
           including the certifications in item (3)(c) thereof,

      the Trustee shall cause the aggregate principal amount of the applicable
      Global Note to be reduced accordingly pursuant to Section 2.06(h) hereof,
      and the Company shall execute and the Trustee shall authenticate and
      deliver to the Person designated in the instructions a Definitive Note in
      the appropriate principal amount. Any Definitive Note issued in exchange
      for a beneficial interest in a Restricted Global Note pursuant to this
      Section 2.06(c) shall be registered in such name or names and in such
      authorized denomination or denominations as the holder of such beneficial
      interest shall

                                      22

<PAGE>

      instruct the Registrar through instructions from the Depositary and the
      Participant or Indirect Participant. The Trustee shall deliver such
      Definitive Notes to the Persons in whose names such Notes are so
      registered. Any Definitive Note issued in exchange for a beneficial
      interest in a Restricted Global Note pursuant to this Section 2.06(c)(i)
      shall bear the Private Placement Legend and shall be subject to all
      restrictions on transfer contained therein.

                 (ii) BENEFICIAL INTERESTS IN RESTRICTED GLOBAL NOTES TO
      UNRESTRICTED DEFINITIVE NOTES. A holder of a beneficial interest in a
      Restricted Global Note may exchange such beneficial interest for an
      Unrestricted Definitive Note or may transfer such beneficial interest to a
      Person who takes delivery thereof in the form of an Unrestricted
      Definitive Note only if:

                      (A) such exchange or transfer is effected pursuant to the
           Exchange Offer in accordance with the Registration Rights Agreement
           and the holder of such beneficial interest, in the case of an
           exchange, or the transferee, in the case of a transfer, certifies in
           the applicable Letter of Transmittal that it is not (1) a
           broker-dealer, (2) a Person participating in the distribution of the
           Exchange Notes or (3) a Person who is an affiliate (as defined in
           Rule 144) of the Company;

                      (B) such transfer is effected pursuant to the Shelf
           Registration Statement in accordance with the Registration Rights
           Agreement;

                      (C) such transfer is effected by a Broker-Dealer pursuant
           to the Exchange Offer Registration Statement in accordance with the
           Registration Rights Agreement; or

                      (D) the Registrar receives the following:

                            (1) if the holder of such beneficial interest in a
                 Restricted Global Note proposes to exchange such beneficial
                 interest for a Definitive Note that does not bear the Private
                 Placement Legend, a certificate from such holder in the form of
                 Exhibit C hereto, including the certifications in item (1)(b)
                 thereof; or

                            (2) if the holder of such beneficial interest in a
                 Restricted Global Note proposes to transfer such beneficial
                 interest to a Person who shall take delivery thereof in the
                 form of a Definitive Note that does not bear the Private
                 Placement Legend, a certificate from such holder in the form of
                 Exhibit B hereto, including the certifications in item (4)
                 thereof;

           and, in each such case set forth in this subparagraph (D), if the
           Registrar so requests or if the Applicable Procedures so require, an
           Opinion of Counsel in form reasonably acceptable to the Registrar to
           the effect that such exchange or transfer is in compliance with the
           Securities Act and that the restrictions on transfer contained herein
           and in the Private Placement Legend are no longer required in order
           to maintain compliance with the Securities Act.

                 (iii)BENEFICIAL INTERESTS IN UNRESTRICTED GLOBAL NOTES TO
      UNRESTRICTED DEFINITIVE NOTES. If any holder of a beneficial interest in
      an Unrestricted Global Note proposes to exchange such beneficial interest
      for a Definitive Note or to transfer such beneficial interest to a Person
      who takes delivery thereof in the form of a Definitive Note, then, upon
      satisfaction of the conditions set forth in Section 2.06(b)(ii) hereof,
      the Trustee shall cause the aggregate principal amount of the applicable
      Global Note to be reduced accordingly pursuant to Section 2.06(h) hereof,
      and the Company shall

                                      23

<PAGE>

      execute and the Trustee shall authenticate and deliver to the Person
      designated in the instructions a Definitive Note in the appropriate
      principal amount. Any Definitive Note issued in exchange for a
      beneficial interest pursuant to this Section 2.06(c)(iii) shall be
      registered in such name or names and in such authorized denomination or
      denominations as the holder of such beneficial interest shall instruct
      the Registrar through instructions from the Depositary and the
      Participant or Indirect Participant. The Trustee shall deliver such
      Definitive Notes to the Persons in whose names such Notes are so
      registered. Any Definitive Note issued in exchange for a beneficial
      interest pursuant to this Section 2.06(c)(iii) shall not bear the
      Private Placement Legend.

            (d) TRANSFER AND EXCHANGE OF DEFINITIVE NOTES FOR BENEFICIAL
INTERESTS.

                 (i) RESTRICTED DEFINITIVE NOTES TO BENEFICIAL INTERESTS IN
      RESTRICTED GLOBAL NOTES. If any Holder of a Restricted Definitive Note
      proposes to exchange such Note for a beneficial interest in a Restricted
      Global Note or to transfer such Restricted Definitive Notes to a Person
      who takes delivery thereof in the form of a beneficial interest in a
      Restricted Global Note, then, upon receipt by the Registrar of the
      following documentation:

                      (A) if the Holder of such Restricted Definitive Note
           proposes to exchange such Note for a beneficial interest in a
           Restricted Global Note, a certificate from such Holder in the form of
           Exhibit C hereto, including the certifications in item (2)(b)
           thereof;

                      (B) if such Restricted Definitive Note is being
           transferred to a QIB in accordance with Rule 144A under the
           Securities Act, a certificate to the effect set forth in Exhibit B
           hereto, including the certifications in item (1) thereof;

                      (C) if such Restricted Definitive Note is being
           transferred to a Non-U.S. Person in an offshore transaction in
           accordance with Rule 903 or Rule 904 under the Securities Act, a
           certificate to the effect set forth in Exhibit B hereto, including
           the certifications in item (2) thereof;

                      (D) if such Restricted Definitive Note is being
           transferred pursuant to an exemption from the registration
           requirements of the Securities Act in accordance with Rule 144 under
           the Securities Act, a certificate to the effect set forth in Exhibit
           B hereto, including the certifications in item (3)(a) thereof;

                      (E) if such Restricted Definitive Note is being
           transferred to an Institutional Accredited Investor in reliance on an
           exemption from the registration requirements of the Securities Act
           other than those listed in subparagraphs (B) through (D) above, a
           certificate to the effect set forth in Exhibit B hereto, including
           the certifications, certificates and Opinion of Counsel required by
           item (3) thereof, if applicable;

                      (F) if such Restricted Definitive Note is being
           transferred to the Company or any of its Subsidiaries, a certificate
           to the effect set forth in Exhibit B hereto, including the
           certifications in item (3)(b) thereof; or

                      (G) if such Restricted Definitive Note is being
           transferred pursuant to an effective registration statement under the
           Securities Act, a certificate to the effect set forth in Exhibit B
           hereto, including the certifications in item (3)(c) thereof,

                                      24

<PAGE>

      the Trustee shall cancel the Restricted Definitive Note, increase or cause
      to be increased the aggregate principal amount of, in the case of clause
      (A) above, the appropriate Restricted Global Note, in the case of clause
      (B) above, the 144A Global Note, in the case of clause (C) above, the
      Regulation S Global Note, and in all other cases, the IAI Global Note.

                 (ii) RESTRICTED DEFINITIVE NOTES TO BENEFICIAL INTERESTS IN
      UNRESTRICTED GLOBAL NOTES. A Holder of a Restricted Definitive Note may
      exchange such Note for a beneficial interest in an Unrestricted Global
      Note or transfer such Restricted Definitive Note to a Person who takes
      delivery thereof in the form of a beneficial interest in an Unrestricted
      Global Note only if:

                      (A) such exchange or transfer is effected pursuant to the
           Exchange Offer in accordance with the Registration Rights Agreement
           and the Holder, in the case of an exchange, or the transferee, in the
           case of a transfer, certifies in the applicable Letter of Transmittal
           that it is not (1) a broker-dealer, (2) a Person participating in the
           distribution of the Exchange Notes or (3) a Person who is an
           affiliate (as defined in Rule 144) of the Company;

                      (B) such transfer is effected pursuant to the Shelf
           Registration Statement in accordance with the Registration Rights
           Agreement;

                      (C) such transfer is effected by a Broker-Dealer pursuant
           to the Exchange Offer Registration Statement in accordance with the
           Registration Rights Agreement; or

                      (D) the Registrar receives the following:

                            (1) if the Holder of such Definitive Notes proposes
                 to exchange such Notes for a beneficial interest in the
                 Unrestricted Global Note, a certificate from such Holder in the
                 form of Exhibit C hereto, including the certifications in item
                 (1)(c) thereof; or

                            (2) if the Holder of such Definitive Notes proposes
                 to transfer such Notes to a Person who shall take delivery
                 thereof in the form of a beneficial interest in the
                 Unrestricted Global Note, a certificate from such Holder in the
                 form of Exhibit B hereto, including the certifications in item
                 (4) thereof;

           and, in each such case set forth in this subparagraph (D), if the
           Registrar so requests or if the Applicable Procedures so require, an
           Opinion of Counsel in form reasonably acceptable to the Registrar to
           the effect that such exchange or transfer is in compliance with the
           Securities Act and that the restrictions on transfer contained herein
           and in the Private Placement Legend are no longer required in order
           to maintain compliance with the Securities Act.

                 Upon satisfaction of the conditions of any of the subparagraphs
      in this Section 2.06(d)(ii), the Trustee shall cancel the Definitive Notes
      and increase or cause to be increased the aggregate principal amount of
      the Unrestricted Global Note.

                 (iii)UNRESTRICTED DEFINITIVE NOTES TO BENEFICIAL INTERESTS IN
      UNRESTRICTED GLOBAL NOTES. A Holder of an Unrestricted Definitive Note may
      exchange such Note for a beneficial interest in an Unrestricted Global
      Note or transfer such Definitive Notes to a Person who takes delivery
      thereof in the form of a beneficial interest in an Unrestricted Global
      Note at any time. Upon receipt of a request for such an exchange or
      transfer, the Trustee shall cancel the applicable Unrestricted

                                      25

<PAGE>

      Definitive Note and increase or cause to be increased the aggregate
      principal amount of one of the Unrestricted Global Notes.

                 If any such exchange or transfer from a Definitive Note to a
      beneficial interest is effected pursuant to subparagraphs (ii)(B), (ii)(D)
      or (iii) above at a time when an Unrestricted Global Note has not yet been
      issued, the Company shall issue and, upon receipt of an Authentication
      Order in accordance with Section 2.02 hereof, the Trustee shall
      authenticate one or more Unrestricted Global Notes in an aggregate
      principal amount equal to the principal amount of Definitive Notes so
      transferred.

            (e) TRANSFER AND EXCHANGE OF DEFINITIVE NOTES FOR DEFINITIVE NOTES.
Upon request by a Holder of Definitive Notes and such Holder's compliance with
the provisions of this Section 2.06(e), the Registrar shall register the
transfer or exchange of Definitive Notes. Prior to such registration of transfer
or exchange, the requesting Holder shall present or surrender to the Registrar
the Definitive Notes duly endorsed or accompanied by a written instruction of
transfer in form satisfactory to the Registrar duly executed by such Holder or
by its attorney, duly authorized in writing. In addition, the requesting Holder
shall provide any additional certifications, documents and information, as
applicable, required pursuant to the following provisions of this Section
2.06(e).

                 (i) RESTRICTED DEFINITIVE NOTES TO RESTRICTED DEFINITIVE NOTES.
      Any Restricted Definitive Note may be transferred to and registered in the
      name of Persons who take delivery thereof in the form of a Restricted
      Definitive Note if the Registrar receives the following:

                      (A) if the transfer will be made pursuant to Rule 144A
           under the Securities Act, then the transferor must deliver a
           certificate in the form of Exhibit B hereto, including the
           certifications in item (1) thereof;

                      (B) if the transfer will be made pursuant to Rule 903 or
           Rule 904, then the transferor must deliver a certificate in the form
           of Exhibit B hereto, including the certifications in item (2)
           thereof; and

                      (C) if the transfer will be made pursuant to any other
           exemption from the registration requirements of the Securities Act,
           then the transferor must deliver a certificate in the form of Exhibit
           B hereto, including the certifications, certificates and Opinion of
           Counsel required by item (3) thereof, if applicable.

                 (ii) RESTRICTED DEFINITIVE NOTES TO UNRESTRICTED DEFINITIVE
      NOTES. Any Restricted Definitive Note may be exchanged by the Holder
      thereof for an Unrestricted Definitive Note or transferred to a Person or
      Persons who take delivery thereof in the form of an Unrestricted
      Definitive Note if:

                      (A) such exchange or transfer is effected pursuant to the
           Exchange Offer in accordance with the Registration Rights Agreement
           and the Holder, in the case of an exchange, or the transferee, in the
           case of a transfer, certifies in the applicable Letter of Transmittal
           that it is not (1) a broker-dealer, (2) a Person participating in the
           distribution of the Exchange Notes or (3) a Person who is an
           affiliate (as defined in Rule 144) of the Company;

                      (B) any such transfer is effected pursuant to the Shelf
           Registration Statement in accordance with the Registration Rights
           Agreement;

                                      26

<PAGE>

                      (C) any such transfer is effected by a Broker-Dealer
           pursuant to the Exchange Offer Registration Statement in accordance
           with the Registration Rights Agreement; or

                      (D) the Registrar receives the following:

                            (1) if the Holder of such Restricted Definitive
                 Notes proposes to exchange such Notes for an Unrestricted
                 Definitive Note, a certificate from such Holder in the form of
                 Exhibit C hereto, including the certifications in item (1)(d)
                 thereof; or

                            (2) if the Holder of such Restricted Definitive
                 Notes proposes to transfer such Notes to a Person who shall
                 take delivery thereof in the form of an Unrestricted Definitive
                 Note, a certificate from such Holder in the form of Exhibit B
                 hereto, including the certifications in item (4) thereof;

           and, in each such case set forth in this subparagraph (D), if the
           Registrar so requests, an Opinion of Counsel in form reasonably
           acceptable to the Company to the effect that such exchange or
           transfer is in compliance with the Securities Act and that the
           restrictions on transfer contained herein and in the Private
           Placement Legend are no longer required in order to maintain
           compliance with the Securities Act.

                 (iii)UNRESTRICTED DEFINITIVE NOTES TO UNRESTRICTED DEFINITIVE
      NOTES. A Holder of Unrestricted Definitive Notes may transfer such Notes
      to a Person who takes delivery thereof in the form of an Unrestricted
      Definitive Note. Upon receipt of a request to register such a transfer,
      the Registrar shall register the Unrestricted Definitive Notes pursuant to
      the instructions from the Holder thereof.

            (f) EXCHANGE OFFER. Upon the occurrence of the Exchange Offer in
accordance with the Registration Rights Agreement, the Company shall issue and,
upon receipt of an Authentication Order in accordance with Section 2.02, the
Trustee shall authenticate (i) one or more Unrestricted Global Notes in an
aggregate principal amount equal to the principal amount of the beneficial
interests in the Restricted Global Notes tendered for acceptance by Persons that
certify in the applicable Letters of Transmittal that (x) they are not
broker-dealers, (y) they are not participating in a distribution of the Exchange
Notes and (z) they are not affiliates (as defined in Rule 144) of the Company,
and accepted for exchange in the Exchange Offer and (ii) Definitive Notes in an
aggregate principal amount equal to the principal amount of the Restricted
Definitive Notes accepted for exchange in the Exchange Offer. Concurrently with
the issuance of such Notes, the Trustee shall cause the aggregate principal
amount of the applicable Restricted Global Notes to be reduced accordingly, and
the Company shall execute and the Trustee shall authenticate and deliver to the
Persons designated by the Holders of Definitive Notes so accepted Definitive
Notes in the appropriate principal amount.

            (g) LEGENDS. The following legends shall appear on the face of all
Global Notes and Definitive Notes issued under this Indenture unless
specifically stated otherwise in the applicable provisions of this Indenture.

                 (i)  PRIVATE PLACEMENT LEGEND.

                      (A) Except as permitted by subparagraph (B) below, each
           Global Note and each Definitive Note (and all Notes issued in
           exchange therefor or substitution thereof) shall bear the legend in
           substantially the following form:

                                      27

<PAGE>

                "THE SECURITIES EVIDENCED HEREBY HAVE NOT BEEN REGISTERED UNDER
                 THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"),
                 AND THIS NOTE MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE
                 TRANSFERRED EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION
                 STATEMENT OR IN ACCORDANCE WITH AN APPLICABLE EXEMPTION FROM
                 THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT (SUBJECT TO
                 THE DELIVERY OF SUCH EVIDENCE, IF ANY, REQUIRED UNDER THE
                 INDENTURE PURSUANT TO WHICH THIS NOTE IS ISSUED) AND IN
                 ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF
                 THE UNITED STATES OR ANY OTHER JURISDICTION. EACH PURCHASER OF
                 THE SECURITIES EVIDENCED HEREBY IS HEREBY NOTIFIED THAT THE
                 SELLER MAY BE RELYING ON THE EXEMPTION FROM THE PROVISIONS OF
                 SECTION 5 OF THE SECURITIES ACT PROVIDED BY RULE 144A
                 THEREUNDER OR ANOTHER EXEMPTION UNDER THE SECURITIES ACT. THE
                 HOLDER OF THE SECURITIES EVIDENCED HEREBY AGREES FOR THE
                 BENEFIT OF THE COMPANY THAT (A) SUCH SECURITIES MAY BE RESOLD,
                 PLEDGED OR OTHERWISE TRANSFERRED ONLY (1) (A) TO A PERSON WHO
                 THE SELLER REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL
                 BUYER (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) IN A
                 TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A, (B) IN A
                 TRANSACTION MEETING THE REQUIREMENTS OF RULE 144 UNDER THE
                 SECURITIES ACT, (C) OUTSIDE THE UNITED STATES TO A FOREIGN
                 PERSON IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 904
                 UNDER THE SECURITIES ACT OR (D) IN ACCORDANCE WITH ANOTHER
                 EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES
                 ACT (AND BASED UPON AN OPINION OF COUNSEL IF THE COMPANY SO
                 REQUESTS), AS LONG AS THE REGISTRAR RECEIVES A CERTIFICATION OF
                 THE TRANSFEROR AND AN OPINION OF COUNSEL THAT SUCH TRANSFER IS
                 IN COMPLIANCE WITH THE SECURITIES ACT, (2) TO THE COMPANY OR
                 (3) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT AND, IN
                 EACH CASE, IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF
                 ANY STATE OF THE UNITED STATES OR ANY OTHER APPLICABLE
                 JURISDICTION AND (B) THE HOLDER WILL AND EACH SUBSEQUENT HOLDER
                 IS REQUIRED TO NOTIFY ANY PURCHASER FROM IT OF THE SECURITIES
                 EVIDENCED HEREBY OF THE RESALE RESTRICTION SET FORTH IN (A)
                 ABOVE."

                      (B) Notwithstanding the foregoing, any Global Note or
           Definitive Note issued pursuant to subparagraphs (b)(iv), (c)(ii),
           (c)(iii), (d)(ii), (d)(iii), (e)(ii), (e)(iii) or (f) to this Section
           2.06 (and all Notes issued in exchange therefor or substitution
           thereof) shall not bear the Private Placement Legend.

                 (ii) GLOBAL NOTE LEGEND. Each Global Note shall bear a legend
      in substantially the following form:

                 "THIS GLOBAL SECURITY IS HELD BY THE DEPOSITARY (AS DEFINED IN
      THE INDENTURE GOVERNING THIS SECURITY) OR ITS NOMINEE IN CUSTODY FOR THE
      BENEFIT OF THE BENEFICIAL OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY
      PERSON UNDER ANY CIRCUMSTANCES EXCEPT THAT (I) THE TRUSTEE MAY

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<PAGE>

      MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED PURSUANT TO SECTION 2.07
      OF THE INDENTURE, (II) THIS GLOBAL SECURITY MAY BE EXCHANGED IN WHOLE
      BUT NOT IN PART PURSUANT TO SECTION 2.06(a) OF THE INDENTURE, (III) THIS
      GLOBAL SECURITY MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION
      PURSUANT TO SECTION 2.11 OF THE INDENTURE AND (IV) THIS GLOBAL SECURITY
      MAY BE TRANSFERRED TO A SUCCESSOR DEPOSITARY WITH THE PRIOR WRITTEN
      CONSENT OF THE COMPANY."

                 (iii)REGULATION S LEGEND. Each certificate evidencing a
      Regulation S Note will contain a legend in substantially the following
      form:

                 "HEDGING TRANSACTIONS INVOLVING THESE SECURITIES MAY NOT BE
      CONDUCTED UNLESS IN COMPLIANCE WITH THE SECURITIES ACT."

            (h) CANCELLATION AND/OR ADJUSTMENT OF GLOBAL NOTES. At such time as
all beneficial interests in a particular Global Note have been exchanged for
Definitive Notes or a particular Global Note has been redeemed, repurchased or
canceled in whole and not in part, each such Global Note shall be returned to or
retained and canceled by the Trustee in accordance with Section 2.11 hereof. At
any time prior to such cancellation, if any beneficial interest in a Global Note
is exchanged for or transferred to a Person who will take delivery thereof in
the form of a beneficial interest in another Global Note or for Definitive
Notes, the principal amount of Notes represented by such Global Note shall be
reduced accordingly and an endorsement shall be made on such Global Note by the
Trustee or by the Depositary at the direction of the Trustee to reflect such
reduction; and if the beneficial interest is being exchanged for or transferred
to a Person who will take delivery thereof in the form of a beneficial interest
in another Global Note, such other Global Note shall be increased accordingly
and an endorsement shall be made on such Global Note by the Trustee or by the
Depositary at the direction of the Trustee to reflect such increase.

            (i)  GENERAL PROVISIONS RELATING TO TRANSFERS AND EXCHANGES.

                 (i) To permit registrations of transfers and exchanges, the
      Company shall execute and the Trustee shall authenticate Global Notes and
      Definitive Notes upon the Company's order or at the Registrar's request.

                 (ii) No service charge shall be made to a holder of a
      beneficial interest in a Global Note or to a Holder of a Definitive Note
      for any registration of transfer or exchange, but the Company may require
      payment of a sum sufficient to cover any transfer tax or similar
      governmental charge payable in connection therewith (other than any such
      transfer taxes or similar governmental charge payable upon exchange or
      transfer pursuant to Sections 2.10, 3.06, 3.09, 4.10, 4.15 and 9.05
      hereof).

                 (iii)The Registrar shall not be required to register the
      transfer of or exchange any Note selected for redemption in whole or in
      part, except the unredeemed portion of any Note being redeemed in part.

                 (iv) All Global Notes and Definitive Notes issued upon any
      registration of transfer or exchange of Global Notes or Definitive Notes
      shall be the valid obligations of the Company, evidencing the same debt,
      and entitled to the same benefits under this Indenture, as the Global
      Notes or Definitive Notes surrendered upon such registration of transfer
      or exchange.

                                      29

<PAGE>

                 (v)  The Company shall not be required (A) to issue, to
      register the transfer of or to exchange any Notes during a period
      beginning at the opening of business 15 days before the day of any
      selection of Notes for redemption under Section 3.02 hereof and ending
      at the close of business on the day of selection, (B) to register the
      transfer of or to exchange any Note so selected for redemption in whole
      or in part, except the unredeemed portion of any Note being redeemed in
      part or (C) to register the transfer of or to exchange a Note between a
      record date and the next succeeding Interest Payment Date.

                 (vi)  Prior to due presentment for the registration of a
      transfer of any Note, the Trustee, any Agent and the Company may deem and
      treat the Person in whose name any Note is registered as the absolute
      owner of such Note for the purpose of receiving payment of principal of
      and interest on such Notes and for all other purposes, and none of the
      Trustee, any Agent or the Company shall be affected by notice to the
      contrary.

                 (vii) The Trustee shall authenticate Global Notes and
      Definitive Notes in accordance with the provisions of Section 2.02 hereof.

                 (viii) All certifications, certificates and Opinions of Counsel
      required to be submitted to the Registrar pursuant to this Section 2.06 to
      effect a registration of transfer or exchange may be submitted by
      facsimile.

SECTION 2.07.     REPLACEMENT NOTES.

            If any mutilated Note is surrendered to the Trustee or the Company
and the Trustee receives evidence to its satisfaction of the destruction, loss
or theft of any Note, the Company shall issue and the Trustee, upon receipt of
an Authentication Order, shall authenticate a replacement Note if the Trustee's
requirements are met. If required by the Trustee or the Company, an indemnity
bond must be supplied by the Holder that is sufficient in the judgment of the
Trustee and the Company to protect the Company, the Trustee, any Agent and any
authenticating agent from any loss that any of them may suffer if a Note is
replaced. The Company may charge for its expenses in replacing a Note.

            Every replacement Note is an additional obligation of the Company
and shall be entitled to all of the benefits of this Indenture equally and
proportionately with all other Notes duly issued hereunder.

SECTION 2.08.     OUTSTANDING NOTES.

            The Notes outstanding at any time are all the Notes authenticated by
the Trustee except for those canceled by it, those delivered to it for
cancellation, those reductions in the interest in a Global Note effected by the
Trustee in accordance with the provisions hereof, and those described in this
Section as not outstanding. Except as set forth in Section 2.09 hereof, a Note
does not cease to be outstanding because the Company or an Affiliate of the
Company holds the Note; however, Notes held by the Company or a Subsidiary of
the Company shall not be deemed to be outstanding for purposes of Section
3.07(b) hereof.

            If a Note is replaced pursuant to Section 2.07 hereof, it ceases to
be outstanding unless the Trustee receives proof satisfactory to it that the
replaced Note is held by a bona fide purchaser.

            If the principal amount of any Note is considered paid under Section
4.01 hereof, it ceases to be outstanding and interest on it ceases to accrue.

                                      30

<PAGE>

            If the Paying Agent (other than the Company, a Subsidiary or an
Affiliate of any thereof) holds, on a redemption date or maturity date, money
sufficient to pay Notes payable on that date, then on and after that date such
Notes shall be deemed to be no longer outstanding and shall cease to accrue
interest.

SECTION 2.09.     TREASURY NOTES.

            In determining whether the Holders of the required principal amount
of Notes have concurred in any direction, waiver or consent, Notes owned by the
Company, or by any Person directly or indirectly controlling or controlled by or
under direct or indirect common control with the Company, shall be considered as
though not outstanding, except that for the purposes of determining whether the
Trustee shall be protected in relying on any such direction, waiver or consent,
only Notes that a Responsible Officer of the Trustee actually knows are so owned
shall be so disregarded.

SECTION 2.10.     TEMPORARY NOTES.

            Until certificates representing Notes are ready for delivery, the
Company may prepare and the Trustee, upon receipt of an Authentication Order,
shall authenticate temporary Notes. Temporary Notes shall be substantially in
the form of certificated Notes but may have variations that the Company
considers appropriate for temporary Notes and as shall be reasonably acceptable
to the Trustee. Without unreasonable delay, the Company shall prepare and the
Trustee shall authenticate definitive Notes in exchange for temporary Notes.

            Holders of temporary Notes shall be entitled to all of the benefits
of this Indenture.

SECTION 2.11.     CANCELLATION.

            The Company at any time may deliver Notes to the Trustee for
cancellation. The Registrar and Paying Agent shall forward to the Trustee any
Notes surrendered to them for registration of transfer, exchange or payment. The
Trustee and no one else shall cancel all Notes surrendered for registration of
transfer, exchange, payment, replacement or cancellation and shall return such
canceled Notes (subject to the record retention requirement of the Exchange Act)
to the Company. The Company may not issue new Notes to replace Notes that it has
paid or that have been delivered to the Trustee for cancellation.

SECTION 2.12.     DEFAULTED INTEREST.

            If the Company defaults in a payment of interest on the Notes, it
shall pay the defaulted interest in any lawful manner plus, to the extent
lawful, interest payable on the defaulted interest, to the Persons who are
Holders on a subsequent special record date, in each case at the rate provided
in the Notes and in Section 4.01 hereof. The Company shall notify the Trustee in
writing of the amount of defaulted interest proposed to be paid on each Note and
the date of the proposed payment. The Company shall fix or cause to be fixed
each such special record date and payment date, PROVIDED that no such special
record date shall be less than 10 days prior to the related payment date for
such defaulted interest. At least 15 days before the special record date, the
Company (or, upon the written request of the Company, the Trustee in the name
and at the expense of the Company) shall mail or cause to be mailed to Holders a
notice that states the special record date, the related payment date and the
amount of such interest to be paid.

                                      31

<PAGE>

SECTION 2.13.     CUSIP NUMBERS.

            The Company in issuing the Notes may use "CUSIP" numbers (if then
generally in use), and, if so, the Trustee shall use "CUSIP" numbers in notices
of redemption as a convenience to Holders; PROVIDED that any such notice may
state that no representation is made as to the correctness of such numbers
either as printed on the Notes or as contained in any notice of a redemption and
that reliance may be placed only on the other identification numbers printed on
the Notes, and any such redemption shall not be affected by any defect in or
omission of such numbers. The Company will promptly notify the Trustee of any
change in the "CUSIP" numbers.

                                    ARTICLE 3
                            REDEMPTION AND PREPAYMENT

SECTION 3.01.     NOTICES TO TRUSTEE.

            If the Company elects to redeem Notes pursuant to the optional
redemption provisions of Section 3.07 hereof, it shall furnish to the Trustee,
at least 45 days but not more than 60 days before a redemption date, an
Officers' Certificate setting forth (i) the clause of this Indenture pursuant to
which the redemption shall occur, (ii) the redemption date, (iii) the principal
amount of Notes to be redeemed and (iv) the redemption price.

SECTION 3.02.     SELECTION OF NOTES TO BE REDEEMED.

            If less than all of the Notes are to be redeemed or purchased in an
offer to purchase at any time, the Trustee shall select the Notes to be redeemed
or purchased among the Holders of the Notes in compliance with the requirements
of the principal national securities exchange, if any, on which the Notes are
listed or, if the Notes are not so listed, on a PRO RATA basis, by lot or in
accordance with any other method the Trustee considers fair and appropriate. In
the event of partial redemption by lot, the particular Notes to be redeemed
shall be selected, unless otherwise provided herein, not less than 30 nor more
than 60 days prior to the redemption date by the Trustee from the outstanding
Notes not previously called for redemption.

            The Trustee shall promptly notify the Company in writing of the
Notes selected for redemption and, in the case of any Note selected for partial
redemption, the principal amount thereof to be redeemed. Notes and portions of
Notes selected shall be in amounts of $1,000 or whole multiples of $1,000;
except that if all of the Notes of a Holder are to be redeemed, the entire
outstanding amount of Notes held by such Holder, even if not a multiple of
$1,000, shall be redeemed. Except as provided in the preceding sentence,
provisions of this Indenture that apply to Notes called for redemption also
apply to portions of Notes called for redemption.

SECTION 3.03.     NOTICE OF REDEMPTION.

            Subject to the provisions of Section 3.09 hereof, at least 30 days
but not more than 60 days before a redemption date, the Company shall mail or
cause to be mailed, by first class mail, a notice of redemption to each Holder
whose Notes are to be redeemed at its registered address.

            The notice shall identify the Notes (including CUSIP Numbers) to be
redeemed and shall state:

                                      32

<PAGE>

            (a)  the redemption date;

            (b)  the redemption price;

            (c) if any Note is being redeemed in part, the portion of the
principal amount of such Note to be redeemed and that, after the redemption date
upon surrender of such Note, a new Note or Notes in principal amount equal to
the unredeemed portion shall be issued upon cancellation of the original Note;

            (d)  the name and address of the Paying Agent;

            (e) that Notes called for redemption must be surrendered to the
Paying Agent to collect the redemption price;

            (f) that, unless the Company defaults in making such redemption
payment, interest on Notes called for redemption ceases to accrue on and after
the redemption date;

            (g) the paragraph of the Notes and/or Section of this Indenture
pursuant to which the Notes called for redemption are being redeemed; and

            (h) that no representation is made as to the correctness or accuracy
of the CUSIP number, if any, listed in such notice or printed on the Notes.

            At the Company's request, the Trustee shall give the notice of
redemption in the Company's name and at its expense; PROVIDED, HOWEVER, that the
Company shall have delivered to the Trustee, at least 45 days prior to the
redemption date, an Officers' Certificate requesting that the Trustee give such
notice and setting forth the information to be stated in such notice as provided
in the preceding paragraph.

SECTION 3.04.     EFFECT OF NOTICE OF REDEMPTION.

            Once notice of redemption is mailed in accordance with Section 3.03
hereof, Notes called for redemption become irrevocably due and payable on the
redemption date at the redemption price. A notice of redemption may not be
conditional.

SECTION 3.05.     DEPOSIT OF REDEMPTION PRICE.

            One Business Day prior to the redemption date, the Company shall
deposit with the Trustee or with the Paying Agent money sufficient to pay the
redemption price of and accrued interest on all Notes to be redeemed on that
date. The Trustee or the Paying Agent shall promptly return to the Company any
money deposited with the Trustee or the Paying Agent by the Company in excess of
the amounts necessary to pay the redemption price of, and accrued interest on,
all Notes to be redeemed.

            If the Company complies with the provisions of the preceding
paragraph, on and after the redemption date, interest shall cease to accrue on
the Notes or the portions of Notes called for redemption. If a Note is redeemed
on or after an interest record date but on or prior to the related interest
payment date, then any accrued and unpaid interest shall be paid to the Person
in whose name such Note was registered at the close of business on such record
date. If any Note called for redemption shall not be so paid upon surrender for
redemption because of the failure of the Company to comply with the preceding
paragraph, interest shall be paid on the unpaid principal, from the redemption
date until such

                                      33

<PAGE>

principal is paid, and to the extent lawful on any interest not paid on such
unpaid principal, in each case at the rate provided in the Notes and in
Section 4.01 hereof.

SECTION 3.06.     NOTES REDEEMED IN PART.

            Upon surrender of a Note that is redeemed in part, the Company shall
issue and, upon the Company's written request, the Trustee shall authenticate
for the Holder at the expense of the Company a new Note equal in principal
amount to the unredeemed portion of the Note surrendered.

SECTION 3.07.     OPTIONAL REDEMPTION.

            (a) Except as set forth in clause (b) of this Section 3.07, the
Company shall not have the option to redeem the Notes pursuant to this Section
3.07 prior to March 1, 2005. Thereafter, the Company shall have the option to
redeem the Notes, in whole or in part, upon not less than 30 nor more than 60
days' notice, at the redemption prices (expressed as percentages of principal
amount) set forth below plus accrued and unpaid interest thereon, if any, to the
applicable redemption date, if redeemed during the twelve-month period beginning
on March 1 of the years indicated below:

<TABLE>
<CAPTION>

        Year                                                         Percentage
        ----                                                         ----------
        <S>                                                          <C>
        2005....................................................      104.188%
        2006....................................................      102.094%
        2007 and thereafter.....................................      100.000%

</TABLE>

            (b) Notwithstanding the provisions of clause (a) of this Section
3.07, at any time prior to March 1, 2004, the Company may on any one or more
occasions redeem up to 35% of the aggregate principal amount of Notes totally
issued under this Indenture at a redemption price of 108.375% of the principal
amount thereof plus accrued and unpaid interest and Liquidated Damages, if
any, to the redemption date, with the net cash proceeds of one or more Equity
Offerings; PROVIDED that at least 65% of the aggregate principal amount of the
Notes totally issued remains outstanding immediately after the occurrence of
such redemption (excluding Notes held by the Company and its Subsidiaries);
and that the redemption must occur within 90 days of the date of the closing
of such Equity Offering.

            (c) Any redemption pursuant to this Section 3.07 shall be made
pursuant to the provisions of Section 3.01 through 3.06 hereof.

SECTION 3.08.     MANDATORY REDEMPTION.

            The Company shall not be required to make mandatory redemption
payments with respect to the Notes.

SECTION 3.09.     OFFER TO PURCHASE BY APPLICATION OF EXCESS PROCEEDS.

            In the event that, pursuant to Section 4.10 hereof, the Company
shall be required to commence an offer to all Holders to purchase Notes (an
"ASSET SALE OFFER"), it shall follow the procedures specified below.

            The Asset Sale Offer shall remain open for a period of 20 Business
Days following its commencement and no longer, except to the extent that a
longer period is required by applicable law (the "OFFER PERIOD"). No later than
five Business Days after the termination of the Offer Period (the

                                      34

<PAGE>

"PURCHASE DATE"), the Company shall purchase the principal amount of Notes
required to be purchased pursuant to Section 4.10 hereof (the "OFFER AMOUNT")
or, if less than the Offer Amount has been tendered, all Notes tendered in
response to the Asset Sale Offer. Payment for any Notes so purchased shall be
made in the same manner as interest payments are made.

            If the Purchase Date is on or after an interest record date and on
or before the related interest payment date, any accrued and unpaid interest
shall be paid to the Person in whose name a Note is registered at the close of
business on such record date, and no additional interest shall be payable to
Holders who tender Notes pursuant to the Asset Sale Offer.

            Upon the commencement of an Asset Sale Offer, the Company shall
send, by first class mail, a notice to the Trustee and each of the Holders, with
a copy to the Trustee. The notice shall contain all instructions and materials
necessary to enable such Holders to tender Notes pursuant to the Asset Sale
Offer. The Asset Sale Offer shall be made to all Holders. The notice, which
shall govern the terms of the Asset Sale Offer, shall state:

            (a) that the Asset Sale Offer is being made pursuant to this Section
3.09 and Section 4.10 hereof and the length of time the Asset Sale Offer shall
remain open;

            (b) the Offer Amount, the purchase price and the Purchase Date;

            (c) that any Note not tendered or accepted for payment shall
continue to accrete or accrue interest;

            (d) that, unless the Company defaults in making such payment, any
Note accepted for payment pursuant to the Asset Sale Offer shall cease to
accrete or accrue interest after the Purchase Date;

            (e) that Holders electing to have a Note purchased pursuant to an
Asset Sale Offer may elect to have Notes purchased in integral multiples of
$1,000 only;

            (f) that Holders electing to have a Note purchased pursuant to any
Asset Sale Offer shall be required to surrender the Note, with the form entitled
"Option of Holder to Elect Purchase" on the reverse of the Note completed, or
transfer by book-entry transfer, to the Company, a depositary, if appointed by
the Company, or a Paying Agent at the address specified in the notice at least
three days before the Purchase Date;

            (g) that Holders shall be entitled to withdraw their election if the
Company, the Depositary or the Paying Agent, as the case may be, receives, not
later than the expiration of the Offer Period, a telegram, facsimile
transmission or letter setting forth the name of the Holder, the principal
amount of the Note the Holder delivered for purchase and a statement that such
Holder is withdrawing his election to have such Note purchased;

            (h) that, if the aggregate principal amount of Notes surrendered by
Holders exceeds the Offer Amount, the Company shall select the Notes to be
purchased on a PRO RATA basis (with such adjustments as may be deemed
appropriate by the Company so that only Notes in denominations of $1,000, or
integral multiples thereof, shall be purchased); and

                                      35

<PAGE>

            (i) that Holders whose Notes were purchased only in part shall be
issued new Notes equal in principal amount to the unpurchased portion of the
Notes surrendered (or transferred by book-entry transfer).

            On or before the Purchase Date, the Company shall, to the extent
lawful, accept for payment, on a PRO RATA basis to the extent necessary, the
Offer Amount of Notes or portions thereof tendered pursuant to the Asset Sale
Offer, or if less than the Offer Amount has been tendered, all Notes tendered,
and shall deliver to the Trustee an Officers' Certificate stating that such
Notes or portions thereof were accepted for payment by the Company in accordance
with the terms of this Section 3.09. The Company, the Depositary or the Paying
Agent, as the case may be, shall promptly (but in any case not later than five
days after the Purchase Date) mail or deliver to each tendering Holder an amount
equal to the purchase price of the Notes tendered by such Holder and accepted by
the Company for purchase, and the Company shall promptly issue a new Note, and
the Trustee, upon written request from the Company shall authenticate and mail
or deliver such new Note to such Holder, in a principal amount equal to any
unpurchased portion of the Note surrendered. Any Note not so accepted shall be
promptly mailed or delivered by the Company to the Holder thereof. The Company
shall publicly announce the results of the Asset Sale Offer on the Purchase
Date.

            Other than as specifically provided in this Section 3.09, any
purchase pursuant to this Section 3.09 shall be made pursuant to the provisions
of Sections 3.01 through 3.06 hereof.

                                    ARTICLE 4
                                    COVENANTS

SECTION 4.01.     PAYMENT OF NOTES.

            The Company shall pay or cause to be paid the principal of, premium,
if any, and interest on the Notes on the dates and in the manner provided in the
Notes. Principal, premium, if any, and interest shall be considered paid on the
date due if the Paying Agent, if other than the Company or a Subsidiary thereof,
holds as of 10:00 a.m. Eastern Time on the due date money deposited by the
Company in immediately available funds and designated for and sufficient to pay
all principal, premium, if any, and interest then due. The Company shall pay all
Liquidated Damages, if any, in the same manner on the dates and in the amounts
set forth in the Registration Rights Agreement.

            The Company shall pay interest (including post-petition interest in
any proceeding under any Bankruptcy Law) on overdue principal at the rate equal
to 1% per annum in excess of the then applicable interest rate on the Notes to
the extent lawful; it shall pay interest (including post-petition interest in
any proceeding under any Bankruptcy Law) on overdue installments of interest and
Liquidated Damages (without regard to any applicable grace period) at the same
rate to the extent lawful.

SECTION 4.02.     MAINTENANCE OF OFFICE OR AGENCY.

            The Company shall maintain in the Borough of Manhattan, the City of
New York, an office or agency (which may be an office of the Trustee or an
affiliate of the Trustee, Registrar or co-registrar) where Notes may be
surrendered for registration of transfer or for exchange and where notices and
demands to or upon the Company in respect of the Notes and this Indenture may be
served. The Company shall give prompt written notice to the Trustee of the
location, and any change in the location, of such office or agency. If at any
time the Company shall fail to maintain any such required office or

                                      36

<PAGE>

agency or shall fail to furnish the Trustee with the address thereof, such
presentations, surrenders, notices and demands may be made or served at the
Corporate Trust Office of the Trustee.

            The Company may also from time to time designate one or more other
offices or agencies where the Notes may be presented or surrendered for any or
all such purposes and may from time to time rescind such designations; PROVIDED,
HOWEVER, that no such designation or rescission shall in any manner relieve the
Company of its obligation to maintain an office or agency in the Borough of
Manhattan, the City of New York for such purposes. The Company shall give prompt
written notice to the Trustee of any such designation or rescission and of any
change in the location of any such other office or agency.

            The Company hereby designates the Corporate Trust Office of the
Trustee as one such office or agency of the Company in accordance with Section
2.03.

SECTION 4.03.     REPORTS.

            (a) Whether or not required by the rules and regulations of the
SEC, so long as any Notes are outstanding, the Company shall furnish to the
Holders of Notes within the time periods specified in the SEC's rules and
regulations (i) all quarterly and annual financial information that would be
required to be contained in a filing with the SEC on Forms 10-Q and 10-K if
the Company were required to file such forms, including a "Management's
Discussion and Analysis of Financial Condition and Results of Operations" and,
with respect to the annual information only, a report thereon by the Company's
independent public accountants and (ii) all current reports that would be
required to be filed with the SEC on Form 8-K if the Company were required to
file such reports. If the Company has designated any of its Subsidiaries as
Unrestricted Subsidiaries, then the quarterly and annual financial information
required by this Section 4.03(a) shall include a reasonably detailed
presentation, either on the face of the financial statements or in the
footnotes thereto, and in Management's Discussion and Analysis of Financial
Condition and Results of Operations, of the financial condition and results of
operations of the Company and its Restricted Subsidiaries separate from the
financial condition and results of operations of the Unrestricted Subsidiaries
of the Company. In addition, following consummation of the Exchange Offer,
whether or not required by the rules and regulations of the SEC, the Company
shall file a copy of all such information and reports with the SEC for public
availability within the time periods specified in the SEC's rules and
regulations (unless the SEC will not accept such a filing) and make such
information available to securities analysts and prospective investors upon
request. The Company shall at all times comply with TIA Section 314(a).
Delivery of such reports, information and documents to the Trustee is for
informational purposes only and the Trustee's receipt of such shall not
constitute constructive notice of any information contained therein or
determinable from information contained therein, including the Company's
compliance with any of its covenants hereunder (as to which the Trustee is
entitled to rely exclusively on Officers' Certificates).

            (b) For so long as any Notes remain outstanding, the Company and the
Guarantors shall furnish to the Holders and to securities analysts and
prospective investors, upon their request, the information required to be
delivered pursuant to Rule 144A(d)(4) under the Securities Act.

SECTION 4.04.     COMPLIANCE CERTIFICATE.

            (a) The Company and each Guarantor shall deliver to the Trustee,
within 90 days after the end of each fiscal year, an Officers' Certificate
stating that a review of the activities of the Company and its Subsidiaries
during the preceding fiscal year has been made under the supervision of the
signing

                                      37

<PAGE>

Officers with a view to determining whether the Company has kept, observed,
performed and fulfilled its obligations under this Indenture, and further
stating, as to each such Officer signing such certificate, that to the best of
his or her knowledge the Company has kept, observed, performed and fulfilled
each and every covenant contained in this Indenture and is not in default in
the performance or observance of any of the terms, provisions and conditions
of this Indenture (or, if a Default or Event of Default shall have occurred,
describing all such Defaults or Events of Default of which he or she may have
knowledge and what action the Company is taking or proposes to take with
respect thereto) and that to the best of his or her knowledge no event has
occurred and remains in existence by reason of which payments on account of
the principal of or interest, if any, on the Notes is prohibited or if such
event has occurred, a description of the event and what action the Company is
taking or proposes to take with respect thereto.

            (b) So long as not contrary to the then current recommendations of
the American Institute of Certified Public Accountants, the year-end financial
statements delivered pursuant to Section 4.03(a) above shall be accompanied by a
written statement of the Company's independent public accountants (who shall be
a firm of established national reputation) that in making the examination
necessary for certification of such financial statements, nothing has come to
their attention that would lead them to believe that the Company has violated
any provisions of Article 4 or Article 5 hereof or, if any such violation has
occurred, specifying the nature and period of existence thereof, it being
understood that such accountants shall not be liable directly or indirectly to
any Person for any failure to obtain knowledge of any such violation.

            (c) The Company shall, so long as any of the Notes are outstanding,
deliver to the Trustee, forthwith upon any Officer becoming aware of any Default
or Event of Default, an Officers' Certificate specifying such Default or Event
of Default and what action the Company is taking or proposes to take with
respect thereto.

SECTION 4.05.     TAXES.

            The Company shall pay, and shall cause each of its Subsidiaries to
pay, prior to delinquency, all material taxes, assessments, and governmental
levies except such as are contested in good faith and by appropriate proceedings
or where the failure to effect such payment is not adverse in any material
respect to the Holders of the Notes.

SECTION 4.06.     STAY, EXTENSION AND USURY LAWS.

            The Company and each of the Guarantors covenants (to the extent that
it may lawfully do so) that it shall not at any time insist upon, plead, or in
any manner whatsoever claim or take the benefit or advantage of, any stay,
extension or usury law wherever enacted, now or at any time hereafter in force,
that may affect the covenants or the performance of this Indenture; and the
Company and each of the Guarantors (to the extent that it may lawfully do so)
hereby expressly waives all benefit or advantage of any such law, and covenants
that it shall not, by resort to any such law, hinder, delay or impede the
execution of any power herein granted to the Trustee, but shall suffer and
permit the execution of every such power as though no such law has been enacted.

SECTION 4.07.     RESTRICTED PAYMENTS.

            The Company shall not, and shall not permit any of its Subsidiaries
to, directly or indirectly: (i) declare or pay any dividend or make any other
payment or distribution on account of the Company's

                                      38

<PAGE>

or any of its Restricted Subsidiaries' Equity Interests (including, without
limitation, any payment in connection with any merger or consolidation
involving the Company or any of its Restricted Subsidiaries) or to the direct
or indirect holders of the Company's or any of its Restricted Subsidiaries'
Equity Interests in their capacity as such (other than dividends or
distributions payable in Equity Interests (other than Disqualified Stock) of
the Company or to the Company or a Restricted Subsidiary of the Company); (ii)
purchase, redeem or otherwise acquire or retire for value (including, without
limitation, in connection with any merger or consolidation involving the
Company) any Equity Interests of the Company or any direct or indirect parent
of the Company or any Restricted Subsidiary of the Company (other than any
such Equity Interests owned by the Company or any Restricted Subsidiary of the
Company); (iii) make any payment on or with respect to, or purchase, redeem,
defease or otherwise acquire or retire for value any Indebtedness that is
subordinated to the Notes or the Note Guarantees, except a payment of
interest, principal, premium or liquidated damages at the Stated Maturity
thereof or in accordance with the mandatory provisions thereof without giving
effect to any amendment thereof (other than an amendment approved by the
Holders so affected in accordance with the provisions of Section 4.17 of this
Indenture) after the date of this Indenture with respect to any such
Indebtedness issued prior to the date of this Indenture (provided that the
other requirements of this Indenture, with respect to the events giving rise
to such mandatory provisions are first complied with); or (iv) make any
Restricted Investment (all such payments and other actions set forth in
clauses (i) through (iv) above being collectively referred to as "Restricted
Payments"), unless, at the time of and after giving effect to such Restricted
Payment:

            (a) no Default or Event of Default shall have occurred and be
continuing or would occur as a consequence thereof; and

            (b) with respect to all Restricted Payments other than regular
dividends on Qualified Preferred Stock, the Company would, at the time of such
Restricted Payment and after giving pro forma effect thereto as if such
Restricted Payment had been made at the beginning of the applicable four-quarter
period, have been permitted to incur at least $1.00 of additional Indebtedness
pursuant to the Fixed Charge Coverage Ratio test set forth in the first
paragraph of Section 4.09 hereof; and

            (c) such Restricted Payment, together with the aggregate amount of
all other Restricted Payments made by the Company and its Restricted
Subsidiaries after April 1, 1999 (excluding Restricted Payments permitted by
clauses (ii), (iii) and (iv) of the next succeeding paragraph), is less than the
sum, without duplication, of (1) 50% of the Consolidated Net Income of the
Company for the period (taken as one accounting period) from April 1, 1999 to
the end of the Company's most recently ended fiscal quarter for which internal
financial statements are available at the time of such Restricted Payment (or,
if such Consolidated Net Income for such period is a deficit, less 100% of such
deficit), plus (2) 100% of the aggregate net cash proceeds received by the
Company since April 1, 1999 as a contribution to its common equity capital or
from the issue or sale of Equity Interests of the Company (other than
Disqualified Stock) or from the issue or sale of convertible or exchangeable
Disqualified Stock or convertible or exchangeable debt securities of the Company
that have been converted into or exchanged for such Equity Interests (other than
Equity Interests (or Disqualified Stock or debt securities) sold to a Subsidiary
of the Company), plus (3) to the extent that any Restricted Investment that was
made after the date of this Indenture is sold for cash or otherwise liquidated
or repaid for cash, the lesser of (i) the cash return of capital with respect to
such Restricted Investment (less the cost of disposition, if any) and (ii) the
initial amount of such Restricted Investment, plus (4) to the extent not
otherwise included in Consolidated Net Income or otherwise increasing amounts
available for Restricted Payments or Permitted Investments, 50% of all
dividends, distributions or interest payments in respect of Restricted
Investments.

                                      39

<PAGE>

            The foregoing provisions shall not prohibit (i) the payment of any
dividend within 60 days after the date of declaration thereof, if at said date
of declaration such payment would have complied with the provisions of this
Indenture; (ii) the redemption, repurchase, retirement, defeasance or other
acquisition of any Indebtedness of the Company or any Guarantor that is
subordinated to the Notes or of any Equity Interests of the Company or any
Restricted Subsidiary in exchange for, or out of the net cash proceeds of the
substantially concurrent sale (other than to a Subsidiary of the Company) of,
Equity Interests of the Company (other than Disqualified Stock); provided that
the amount of any such net cash proceeds that are utilized for any such
redemption, repurchase, retirement, defeasance or other acquisition shall be
excluded from clause (c) (2) of the preceding paragraph; (iii) the defeasance,
redemption, repurchase or other acquisition of Indebtedness of the Company or
any Guarantor that is subordinated to the Notes with the net cash proceeds from
an incurrence of Permitted Refinancing Indebtedness; (iv) the declaration or
payment of any dividend or other distribution by a Restricted Subsidiary of the
Company to the holders of its common Equity Interests on a pro rata basis; (v)
the repurchase, redemption or other acquisition or retirement for value of any
Equity Interests of the Company or any Restricted Subsidiary of the Company held
by any member of the Company's (or any of its Subsidiaries') management pursuant
to any management equity subscription agreement or stock option agreement;
provided that the aggregate price paid for all such repurchased, redeemed,
acquired or retired Equity Interests shall not exceed $2.0 million in any
twelve-month period; (vi) in connection with an acquisition by the Company or
any of its Restricted Subsidiaries, the return to the Company or any of its
Restricted Subsidiaries of Equity Interests of the Company or its Restricted
Subsidiaries constituting a portion of the purchase consideration in settlement
of indemnification claims; (vii) the purchase by the Company of fractional
shares arising out of stock dividends, splits or combinations or business
combinations; (viii) the acquisition in open-market purchases of the Company's
Equity Interests for matching contributions to the Company's employee stock
purchase and deferred compensation plans in the ordinary course of business and
consistent with past practices; (ix) the redemption, repurchase, retirement,
defeasance or other acquisition of the 1997 Convertible Subordinated Notes;
PROVIDED that at least 90% of such 1997 Convertible Subordinated Notes have been
converted; and (x) Restricted Payments not to exceed $20.0 million under this
clause (x); PROVIDED that in the case of clauses (ii), (iii), (v), (viii) and
(x) no Default or Event of Default should have occurred and be continuing
immediately after such transaction.

            The amount of all Restricted Payments (other than Restricted
Payments made in cash) shall be the fair market value on the date of the
Restricted Payment of the asset(s) or securities proposed to be transferred or
issued by the Company or such Restricted Subsidiary, as the case may be,
pursuant to the Restricted Payment. The fair market value of any assets or
securities that are required to be valued by this Section 4.07 shall be
determined by the Board of Directors whose resolution with respect thereto shall
be delivered to the Trustee. The Board of Directors' determination must be based
upon an opinion or appraisal issued by an accounting, appraisal or investment
banking firm of national standing if the fair market value exceeds $10.0
million. Not later than the date of making any Restricted Payment, the Company
shall deliver to the Trustee an Officers' Certificate stating that such
Restricted Payment is permitted and setting forth the basis upon which the
calculations required by this Section 4.07 were computed, together with a copy
of any fairness opinion or appraisal required by this Indenture.

SECTION 4.08.     DIVIDEND AND OTHER PAYMENT RESTRICTIONS AFFECTING
                  SUBSIDIARIES.

            The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, directly or indirectly, create or permit to exist or become
effective any encumbrance or restriction on the ability of any Restricted
Subsidiary to: (a) pay dividends or make any other distributions on its Capital
Stock to the Company or any of the Company's Restricted Subsidiaries, or with
respect to any other interest or

                                      40

<PAGE>

participation in, or measured by, its profits, or pay any indebtedness owed
to the Company or any of the Company Restricted Subsidiaries; (b) make loans
or advances to the Company or any of the Company's Restricted Subsidiaries;
or (c) transfer any of its properties or assets to the Company or any of the
Company's Restricted Subsidiaries.

         However, the preceding restrictions will not apply to encumbrances
or restrictions existing under or by reason of: (i) any Credit Facilities and
Existing Indebtedness as in effect on the date of this Indenture and any
amendments, modifications, restatements, renewals, increases, supplements,
refundings, replacements or refinancings thereof, PROVIDED that such amendments,
modifications, restatements, renewals, increases, supplements, refundings,
replacements or refinancings are not materially more restrictive, taken as a
whole, as determined in the reasonable judgment of the Board of Directors of the
Company, with respect to such dividend and other payment restrictions than those
contained in such Credit Facilities or such Existing Indebtedness, as in effect
on the date of this Indenture; (ii) this Indenture, the Guarantees and the
Notes; (iii) applicable law; (iv) any instrument governing Indebtedness or
Capital Stock of a Person acquired by the Company or any of its Restricted
Subsidiaries as in effect at the time of such acquisition (except to the extent
such Indebtedness was incurred in connection with or in contemplation of such
acquisition), which encumbrance or restriction is not applicable to any Person,
or the properties or assets of any Person, other than the Person, or the
property or assets of the Person, so acquired, provided that, in the case of
Indebtedness, such Indebtedness was permitted by the terms of this Indenture to
be incurred; (v) customary non-assignment provisions in leases entered into in
the ordinary course of business and consistent with past practices; (vi)
purchase money obligations for property acquired in the ordinary course of
business that impose restrictions on the property so acquired; (vii) any
agreement for the sale or other disposition of a Restricted Subsidiary that
restricts distributions by such Restricted Subsidiary pending its sale or other
disposition; (viii) Permitted Refinancing Indebtedness, provided that the
restrictions contained in the agreements governing such Permitted Refinancing
Indebtedness are not materially more restrictive, taken as a whole, as
determined in the reasonable judgment of the Board of Directors of the Company,
than those contained in the agreements governing the Indebtedness being
refinanced; (ix) Liens securing Indebtedness otherwise permitted to be incurred
pursuant to the provisions of Section 4.12 hereof that limit the right of the
Company or any of its Restricted Subsidiaries to dispose of the assets subject
to such Lien; (x) provisions with respect to the disposition or distribution of
assets or property in joint venture agreements and other similar agreements
entered into in the ordinary course of business; (xi) restrictions on cash or
other deposits or net worth imposed by customers under contracts entered into in
the ordinary course of business; and (xii) restrictions imposed with respect to
a Subsidiary of the Company imposed pursuant to a binding agreement which has
been entered into for the sale or disposition of all or substantially all of the
Capital Stock or assets of such Subsidiary, provided that such disposition will
comply with the provision of Section 4.10 hereof.

SECTION 4.09.  INCURRENCE OF INDEBTEDNESS AND ISSUANCE OF PREFERRED STOCK.

         The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, directly or indirectly, create, incur, issue, assume, guarantee
or otherwise become directly or indirectly liable, contingently or otherwise,
with respect to (collectively, "INCUR") any Indebtedness (including Acquired
Debt) and the Company shall not issue any Disqualified Stock and shall not
permit any of its Restricted Subsidiaries to issue any shares of preferred
stock; PROVIDED, HOWEVER, that the Company may incur Indebtedness (including
Acquired Debt) or issue shares of Disqualified Stock if:

                                      41
<PAGE>

         (i) the Fixed Charge Coverage Ratio for the Company's most recently
ended four full fiscal quarters for which internal financial statements are
available immediately preceding the date on which such additional Indebtedness
is incurred or such Disqualified Stock is issued would have been at least 2.25
to 1, determined on a pro forma basis (including a pro forma application of the
net proceeds therefrom), as if the additional Indebtedness had been incurred, or
the Disqualified Stock had been issued, as the case may be, at the beginning of
such four-quarter period; and

         (ii)  no Default or Event of Default has occurred and is continuing.

         The provisions of the first paragraph of this Section 4.09 shall not
apply to the incurrence of any of the following items of Indebtedness
(collectively, "PERMITTED DEBT"):

         (i)   The incurrence by the Company of additional Indebtedness under
Credit Facilities; provided that the aggregate principal amount of all
Indebtedness of the Company and its Restricted Subsidiaries outstanding, at any
time, under all Credit Facilities incurred under this clause (i) after giving
effect to such incurrence does not exceed an amount equal to $250.0 million;

         (ii)   the incurrence by the Company and its Restricted Subsidiaries
of the Existing Indebtedness;

         (iii)  the incurrence by the Company of Indebtedness represented by
the Notes originally issued on the date of this Indenture, the Guarantees and
this Indenture;

         (iv)   the incurrence by the Company or any of its Restricted
Subsidiaries of Indebtedness represented by Capital Lease Obligations, mortgage
financings or purchase money obligations, in each case incurred for the purpose
of financing all or any part of the purchase price or cost of construction or
improvement of property, plant or equipment used in the business of the Company
or such Subsidiary, in an aggregate principal amount not to exceed $50.0 million
at any time outstanding;

         (v)    the incurrence of Indebtedness solely in respect of bankers'
acceptances, letters of credit, surety or performance bonds (to the extent that
such incurrence does not result in the incurrence of any obligation for the
payment of borrowed money of others), all in the ordinary course of business;

         (vi)   the incurrence by the Company or any of its Restricted
Subsidiaries of Permitted Refinancing Indebtedness in exchange for, or the net
proceeds of which are used to refund, refinance or replace Indebtedness (other
than intercompany Indebtedness) that was permitted by this Indenture to be
incurred under the first paragraph of this Section 4.09 or clauses (ii) or (iii)
of this paragraph;

         (vii)  the incurrence by the Company or any of its Restricted
Subsidiaries of intercompany Indebtedness between or among the Company and any
of its Restricted Subsidiaries; PROVIDED, HOWEVER, that: (i) any subsequent
issuance or transfer of Equity Interests or other event that results in any such
Indebtedness being held by a Person other than the Company or a Restricted
Subsidiary thereof and (ii) any sale or other transfer of any such Indebtedness
to a Person that is not either the Company or a Restricted Subsidiary thereof
shall be deemed, in each case, to constitute an incurrence of such Indebtedness
by the Company or such Restricted Subsidiary, as the case may be, that was not
permitted by this clause (vii);

         (viii) the incurrence by the Company or any of its Restricted
Subsidiaries of Hedging Obligations;

                                      42
<PAGE>

         (ix)  the guarantee by the Company or any of the Guarantors of
Indebtedness of the Company or a Restricted Subsidiary of the Company that was
permitted to be incurred by another provision of this Section 4.09;

         (x)   the incurrence by the Company or any of its Restricted
Subsidiaries of additional Indebtedness in an aggregate principal amount (or
accreted value, as applicable) at any time outstanding, including all Permitted
Refinancing Indebtedness incurred to refund, refinance or replace any
Indebtedness incurred pursuant to this clause (x), not to exceed $100.0 million
outstanding at any time;

         (xi)  the incurrence by the Company's Unrestricted Subsidiaries of
Non-Recourse Debt; PROVIDED, HOWEVER, that if any such Indebtedness ceases to be
Non-Recourse Debt, such event shall be deemed to constitute an incurrence of
Indebtedness by a Restricted Subsidiary of the Company that was not permitted by
this clause (xi); and

         (xii) the accrual of interest, accretion or amortization of original
issue discount, the payment of interest on any Indebtedness in the form of
additional Indebtedness with the same terms, and the payment of dividends on
Disqualified Stock in the form of additional shares of the same class of
Disqualified Stock; provided, in each such case, that the amount thereof is
included in Fixed Charges of the Company as accrued.

         For purposes of determining compliance with this Section 4.09, in
the event that an item of proposed Indebtedness (including Acquired Debt) meets
the criteria of more than one of the categories of Permitted Debt described in
clauses (i) through (xii) above, or is entitled to be incurred pursuant to the
first paragraph of this Section 4.09, the Company, in its sole discretion, will
be permitted to classify (or later classify or reclassify), in whole or in part,
such item of Indebtedness in any manner that complies with this Section 4.09.

SECTION 4.10.  ASSET SALES.

         The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, consummate an Asset Sale unless: (i) the Company (or the
Restricted Subsidiary, as the case may be) receives consideration at the time of
such Asset Sale at least equal to the fair market value of the assets or Equity
Interests issued or sold or otherwise disposed of; (ii) if the Net Proceeds
received with respect to any Asset Sale exceed $15.0 million, such fair market
value is determined by the Company's Board of Directors and evidenced by a
resolution of the Board of Directors set forth in an Officers' Certificate
delivered to the Trustee; and (iii) except with respect to a disposition of the
Exploration and Production Assets of Odessa (including by way of the sale of the
capital stock of Odessa) or the assets of the operations conducted by the
Company or its Subsidiaries in Argentina and related assets (including by way of
the sale of the Capital Stock of the Subsidiary or Subsidiaries conducting such
operations), at least 75% of the consideration therefor received by the Company
or such Restricted Subsidiary is in the form of cash. For purposes of this
provision, each of the following shall be deemed to be cash: (a) any liabilities
of the Company or any Restricted Subsidiary (other than liabilities that are by
their terms subordinated to the Notes or any Note Guarantee) that are assumed by
the transferee of any such assets; (b) any securities, notes or other
obligations received by the Company or any such Restricted Subsidiary from such
transferee that are contemporaneously (subject to ordinary settlement periods)
converted by the Company or such Restricted Subsidiary into cash (to the extent
of the cash received in that conversion); (c) any assets received in exchange
for assets in a "like-kind" exchange or an exchange of assets of the Company or
any Restricted Subsidiary for other assets which are useful in the business of
the Company

                                      43
<PAGE>

and the Restricted Subsidiaries (whether such assets are of "like kind"); and
(d) any Designated Noncash Consideration (which shall not at any time exceed,
in the aggregate, $30.0 million outstanding.)

         Within 365 days after the receipt of any Net Proceeds from an Asset
Sale, the Company may apply such Net Proceeds at its option: (1) to reduce
permanently Indebtedness under a Credit Facility and to correspondingly reduce
commitments if such Indebtedness constitutes revolving credit borrowings or to
repay permanently any other Indebtedness (other than Indebtedness that by its
terms is subordinated to the Notes or any Subsidiary Guarantees); (2) to acquire
all or substantially all of the assets of, or a majority of the Voting Stock of,
another Person engaged in a Permitted Business; (3) to make a capital
expenditure; or (4) to acquire other long-term assets that are used or useful in
a Permitted Business.

         Pending the final application of any such Net Proceeds, the Company
may temporarily reduce revolving credit borrowings or otherwise invest such Net
Proceeds in any manner that is not prohibited by this Indenture.

         Any Net Proceeds from Asset Sales that are not applied or invested
as provided in the second preceding paragraph shall constitute Excess Proceeds.
Within 30 days of each date on which the aggregate amount of Excess Proceeds
exceeds $10.0 million, the Company shall make an Asset Sale Offer to all Holders
of Notes and all holders of other Indebtedness that is PARI PASSU with the Notes
containing provisions similar to those set forth in this Indenture with respect
to offers to purchase or redeem with the proceeds of sales of assets to purchase
the maximum principal amount of Notes and such other PARI PASSU Indebtedness
that may be purchased out of the Excess Proceeds. The offer price in any Asset
Sale Offer shall be equal to 100% of principal amount plus accrued and unpaid
interest and Liquidated Damages, if any, to the date of purchase, and shall be
payable in cash. If any Excess Proceeds remain after consummation of an Asset
Sale Offer, the Company may use such Excess Proceeds for any purpose not
otherwise prohibited by this Indenture. If the aggregate principal amount of
Notes and such other PARI PASSU Indebtedness tendered into such Asset Sale Offer
exceeds the amount of Excess Proceeds, the Trustee shall select the Notes and
such other PARI PASSU Indebtedness to be purchased on a pro rata basis. Upon
completion of each Asset Sale Offer, the amount of Excess Proceeds shall be
reset at zero.

SECTION 4.11.  TRANSACTIONS WITH AFFILIATES.

         The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, make any payment to, or sell, lease, transfer or otherwise
dispose of any of its properties or assets to, or purchase any property or
assets from, or enter into or make or amend any transaction, contract,
agreement, understanding, loan, advance or guarantee with, or for the benefit
of, any Affiliate (each, an "AFFILIATE TRANSACTION"), unless: (i) such Affiliate
Transaction is on terms that are no less favorable to the Company or the
relevant Restricted Subsidiary than those that would have been obtained in a
comparable transaction by the Company or such Restricted Subsidiary with an
unrelated Person; and (ii) the Company delivers to the Trustee: (a) with respect
to any Affiliate Transaction or series of related Affiliate Transactions
involving aggregate consideration in excess of $5.0 million, a resolution of the
Board of Directors set forth in an Officers' Certificate certifying that such
Affiliate Transaction complies with this Section 4.11 and that such Affiliate
Transaction has been approved by a majority of the disinterested members of the
Board of Directors; and (b) with respect to any Affiliate Transaction or series
of related Affiliate Transactions involving aggregate consideration in excess of
$10.0 million, an opinion as to the fairness to the Holders of such Affiliate
Transaction from a financial point of view issued by an accounting, appraisal or
investment banking firm of national standing.

                                      44
<PAGE>

         The following items shall not be deemed to be Affiliate Transactions
and, therefore, shall not be subject to the provisions of the prior paragraph:
(i) any employment agreement or arrangements (including loan arrangements and
advances) with officers and employees entered into by the Company or any of its
Restricted Subsidiaries in the ordinary course of business; (ii) transactions
between or among the Company and/or its Restricted Subsidiaries; (iii) payment
of reasonable directors fees and the provision of customary indemnification
arrangements to officers, directors and employees of the Company or its
Restricted Subsidiaries; and (iv) Restricted Payments that are permitted by the
provisions of Section 4.07 hereof.

SECTION 4.12.  LIENS.

         The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, directly or indirectly, create, incur, assume or suffer to
exist any Lien of any kind securing Indebtedness, Attributable Debt or trade
payables on any asset now owned or hereafter acquired, except (i) Permitted
Liens or (ii) if the Obligations under the Notes (or a Guarantee of the Notes)
and this Indenture are equally and ratably secured (or secured on a senior basis
if such other obligations are subordinated to the Obligations under the Notes or
the Guarantees of the Notes) with the other obligations so secured until such
time as such other obligations are no longer secured by such Lien.

SECTION 4.13.  BUSINESS ACTIVITIES.

         The Company shall not, and shall not permit any Restricted
Subsidiary to, engage in any business other than a Permitted Business.

SECTION 4.14.  CORPORATE EXISTENCE.

         Subject to Article 5 hereof, the Company shall do or cause to be
done all things necessary to preserve and keep in full force and effect (i) its
corporate existence, and the corporate, partnership or other existence of each
of its Subsidiaries, in accordance with the respective organizational documents
(as the same may be amended from time to time) of the Company or any such
Subsidiary and (ii) the rights (charter and statutory), licenses and franchises
of the Company and its Subsidiaries; PROVIDED, HOWEVER, that the Company shall
not be required to preserve any such right, license or franchise, or the
corporate, partnership or other existence of any of its Subsidiaries, if the
Board of Directors shall determine that the preservation thereof is no longer
desirable in the conduct of the business of the Company and its Subsidiaries,
taken as a whole, and that the loss thereof is not adverse in any material
respect to the Holders of the Notes.

SECTION 4.15.  OFFER TO REPURCHASE UPON CHANGE OF CONTROL.

         (a)  Upon the occurrence of a Change of Control, the Company shall
make an offer (a "CHANGE OF CONTROL OFFER") to each Holder to repurchase all or
any part (equal to $1,000 or an integral multiple thereof) of each Holder's
Notes at a purchase price equal to 101% of the aggregate principal amount
thereof plus accrued and unpaid interest thereon, if any, to the date of
purchase the "CHANGE OF CONTROL PAYMENT"). Within 10 business days following any
Change of Control, the Company shall mail a notice to each Holder stating: (1)
that the Change of Control Offer is being made pursuant to this Section 4.15 and
that all Notes tendered shall be accepted for payment; (2) the purchase price
and the purchase date, which shall be no later than 30 business days from the
date such notice is mailed (the "CHANGE OF CONTROL PAYMENT DATE"); (3) that any
Note not tendered shall continue to accrue interest; (4) that, unless

                                      45
<PAGE>

the Company defaults in the payment of the Change of Control Payment, all
Notes accepted for payment pursuant to the Change of Control Offer shall
cease to accrue interest after the Change of Control Payment Date; (5) that
Holders electing to have any Notes purchased pursuant to a Change of Control
Offer shall be required to surrender the Notes, with the form entitled
"Option of Holder to Elect Purchase" on the reverse of the Notes completed,
to the Paying Agent at the address specified in the notice prior to the close
of business on the third Business Day preceding the Change of Control Payment
Date; (6) that Holders shall be entitled to withdraw their election if the
Paying Agent receives, not later than the close of business on the second
Business Day preceding the Change of Control Payment Date, a telegram,
facsimile transmission or letter setting forth the name of the Holder, the
principal amount of Notes delivered for purchase, and a statement that such
Holder is withdrawing his election to have the Notes purchased; and (7) that
Holders whose Notes are being purchased only in part shall be issued new
Notes equal in principal amount to the unpurchased portion of the Notes
surrendered, which unpurchased portion must be equal to $1,000 in principal
amount or an integral multiple thereof. The Company shall comply with the
requirements of Rule 14e-1 under the Exchange Act and any other securities
laws and regulations thereunder to the extent such laws and regulations are
applicable in connection with the repurchase of Notes in connection with a
Change of Control. To the extent that the provisions of any securities laws
or regulations conflict with the provisions of this Section 4.15, the Company
will comply with the applicable securities laws and regulations and will not
be deemed to have breached its obligations under the provisions of this
Section 4.15 by virtue of such conflict.

         (b)  On the Change of Control Payment Date, the Company shall, to the
extent lawful: (1) accept for payment all Notes or portions thereof properly
tendered pursuant to the Change of Control Offer; (2) deposit with the Paying
Agent an amount equal to the Change of Control Payment in respect of all Notes
or portions thereof so tendered; and (3) deliver or cause to be delivered to the
Trustee the Notes so accepted together with an Officers' Certificate stating the
aggregate principal amount of Notes or portions thereof being purchased by the
Company. The Paying Agent will promptly mail to each Holder of Notes so tendered
the Change of Control Payment for such Notes, and the Trustee shall promptly
authenticate and mail (or cause to be transferred by book entry) to each Holder
a new Note equal in principal amount to any unpurchased portion of the Notes
surrendered, if any; PROVIDED that each such new Note will be in a principal
amount of $1,000 or an integral multiple thereof. The Company will publicly
announce the results of the Change of Control Offer on or as soon as practicable
after the Change of Control Payment Date.

         (c)  Notwithstanding anything to the contrary in this Section 4.15,
the Company shall not be required to make a Change of Control Offer upon a
Change of Control if a third party makes the Change of Control Offer in the
manner, at the times and otherwise in compliance with the requirements set forth
in this Section 4.15 and all other provisions of this Indenture applicable to a
Change of Control Offer made by the Company and purchases all Notes validly
tendered and not withdrawn under such Change of Control Offer.

SECTION 4.16.  INTENTIONALLY OMITTED.

SECTION 4.17.  NO AMENDMENT OF SUBORDINATION PROVISIONS.

         Without the consent of each Holder of Notes so affected, the Company
shall not amend, modify or alter the Subordinated Convertible Note Indenture or
the Senior Subordinated Note Indenture in any way that will (i) increase the
principal of, advance the final maturity date of or shorten the Weighted Average
Life to Maturity of any Subordinated Convertible Notes or Senior Subordinated
Notes

                                      46
<PAGE>

or (ii) alter the redemption provisions or the price or terms at which the
Company is required to offer to purchase such Convertible Subordinated Notes
or Senior Subordinated Notes in any manner adverse to such Holder.

SECTION 4.18.  LIMITATION ON SALE AND LEASEBACK TRANSACTIONS.

         The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, enter into any sale and leaseback transaction; PROVIDED that
the Company or any Restricted Subsidiary of the Company that is a Guarantor may
enter into a sale and leaseback transaction if: (1) the Company or that
Guarantor, as applicable, could have (a) incurred Indebtedness in an amount
equal to the Attributable Debt relating to such sale and leaseback transaction
under the Fixed Charge Coverage Ratio test in the first paragraph of Section
4.09 hereof and (b) incurred a Lien to secure such Indebtedness pursuant to the
provisions of Section 4.12 hereof; provided, however, that clause (a) of this
clause (1) shall be suspended during any period in which the Company and its
Restricted Subsidiaries are not subject to the Suspended Covenants; (2) the
gross cash proceeds of that sale and leaseback transaction are at least equal to
the fair market value, which (if in excess of $10 million) shall be determined
in good faith by the Board of Directors and set forth in an Officers'
Certificate delivered to the Trustee, of the property that is the subject of
such sale and leaseback transaction; and (3) the transfer of assets in that sale
and leaseback transaction is permitted by, and the Company applies the proceeds
of such transaction in compliance with, Section 4.10 hereof.

SECTION 4.19.  DESIGNATION OF RESTRICTED AND UNRESTRICTED SUBSIDIARIES.

         The Board of Directors may designate any Restricted Subsidiary to be
an Unrestricted Subsidiary if no Default or Event of Default would occur or
be continuing immediately after such designation and taking into effect the
designation. If a Restricted Subsidiary is designated as an Unrestricted
Subsidiary, all outstanding Investments owned by the Company and its
Restricted Subsidiaries in the Subsidiary so designated shall be deemed to be
an Investment made as of the time of such designation and shall reduce the
amount available for Restricted Payments under the first paragraph of Section
4.07 hereof or Permitted Investments, as applicable. All such outstanding
Investments shall be valued at their fair market value at the time of such
designation. That designation shall only be permitted if such Restricted
Payment would be permitted at that time and if such Restricted Subsidiary
otherwise meets the definition of an Unrestricted Subsidiary. The Board of
Directors may redesignate any Unrestricted Subsidiary to be a Restricted
Subsidiary if the redesignation would not cause a Default or Event of Default
as a result of such designation.

SECTION 4.20.  LIMITATION ON ISSUANCES OF GUARANTEES OF INDEBTEDNESS; ADDITIONAL
               GUARANTORS.

         The Company shall not permit any Restricted Subsidiary, directly or
indirectly, to guarantee or pledge any assets to secure the payment of any
Indebtedness of the Company under any Credit Facility unless such Restricted
Subsidiary contemporaneously executes and delivers a supplemental indenture to
this Indenture providing for a Note Guarantee by such Restricted Subsidiary.
Notwithstanding the foregoing, any Note Guarantee by a Subsidiary shall provide
by its terms that it shall be automatically and unconditionally released and
discharged upon any sale of all of the capital stock of a Guarantor (including a
sale by way of merger or consolidation), if immediately after giving effect to
such sale, there is no Default or Event of Default that has occurred or is
continuing, or if the Company designates any Restricted Subsidiary that is a
Guarantor as an Unrestricted Subsidiary in accordance with the applicable
provisions of this Indenture. The form of such Note Guarantee is attached as
Exhibit D hereto.

                                      47
<PAGE>

SECTION 4.21.  PAYMENTS FOR CONSENT.

         The Company shall not, and shall not permit any of its Subsidiaries
to, directly or indirectly, pay or cause to be paid any consideration to or for
the benefit of any Holder of Notes for or as an inducement to any consent,
waiver or amendment of any of the terms or provisions of this Indenture or the
Notes unless such consideration is offered to be paid and is paid to all Holders
of the Notes that consent, waive or agree to amend in the time frame set forth
in the solicitation documents relating to such consent, waiver or amendment.

SECTION 4.22   SUSPENDED COVENANTS.

         During any period of time that the Notes have an Investment Grade
Rating from either of the Rating Agencies and no Default has occurred and is
continuing under this Indenture, the Company and its Restricted Subsidiaries
will not be subject to the covenants contained in Sections 4.07, 4.08, 4.09,
4.10, 4.11, 4.13, 4.17, 4.18 (to the extent set forth in Section 4.18) and 5.01
(to the extent set forth in Section 5.01) of this Indenture (collectively, the
"SUSPENDED COVENANTS"); PROVIDED, HOWEVER, such covenants shall not be suspended
if the Investment Grade Rating was obtained directly or indirectly by the
merger, consolidation or other acquisition of the Company with or by a Person
that had an Investment Grade Rating from either of the Rating Agencies and the
Company at such time did not have an Investment Grade Rating from either of the
Rating Agencies; and PROVIDED FURTHER, that the covenants contained in Sections
4.03, 4.12, 4.15, 4.19, 4.20 and 4.21 of this Indenture will not be so
suspended; and PROVIDED FURTHER, that if the Company and its Restricted
Subsidiaries are not subject to the Suspended Covenants for any period of time
as a result of the preceding provisions of this Section 4.22 and, subsequently,
the Rating Agency or Rating Agencies which had given the Notes an Investment
Grade Rating withdraws its or their ratings or downgrades the ratings assigned
to the Notes below the Investment Grade Ratings so that the Notes do not have an
Investment Grade Rating from either Rating Agency, or a Default (other than with
respect to the Suspended Covenants) occurs and is continuing, the Company and
its Restricted Subsidiaries will thereafter again be subject to the Suspended
Covenants, subject to the terms, conditions and obligations set forth in this
Indenture (each such date of reinstatement being the "REINSTATEMENT DATE"),
including those set forth above in this Section 4.22. Compliance with this
Section 4.22 with respect to Restricted Payments made after the Reinstatement
Date will be calculated in accordance with the terms of Section 4.07 as though
such covenant had been in effect during the entire period of time from which the
Notes are issued.

                                    ARTICLE 5
                                   SUCCESSORS

SECTION 5.01.  MERGER, CONSOLIDATION, OR SALE OF ASSETS.

         The Company shall not, directly or indirectly: (i) consolidate or
merge with or into another Person (whether or not the Company is the surviving
corporation); or (ii) sell, assign, transfer, convey or otherwise dispose of all
or substantially all of its properties or assets, in one or more related
transactions, to another Person; unless: (1) either: (a) the Company is the
surviving corporation; or (b) the Person formed by or surviving any such
consolidation or merger (if other than the Company) or to which such sale,
assignment, transfer, conveyance or other disposition shall have been made is a
corporation organized or existing under the laws of the United States, any state
thereof or the District of Columbia; (2) the Person formed by or surviving any
such consolidation or merger (if other than the Company) or the Person to which
such sale, assignment, transfer, conveyance or other disposition shall have been

                                      48
<PAGE>

made assumes all the obligations of the Company under the Notes and this
Indenture pursuant to agreements reasonably satisfactory to the Trustee; (3)
immediately after such transaction no Default or Event of Default exists; and
(4) the Company or the Person formed by or surviving any such consolidation or
merger (if other than the Company) shall, on the date of such transaction after
giving pro forma effect thereto and any related financing transactions as if the
same had occurred at the beginning of the applicable four-quarter period, either
(a) be permitted to incur at least $1.00 of additional Indebtedness pursuant to
the Fixed Charge Coverage Ratio test set forth in the first paragraph of Section
4.09 hereof; or (b) have a Fixed Charge Coverage Ratio that is the same or
higher than the Fixed Charge Coverage Ratio of the Company immediately prior to
such transactions; PROVIDED, HOWEVER, that this clause (4) shall be suspended
during any period in which the Company and its Restricted Subsidiaries are not
subject to the Suspended Covenants. In addition, the Company may not, directly
or indirectly, lease all or substantially all of its properties or assets, in
one or more related transactions, to any other Person. This Section 5.01 shall
not apply to a sale, assignment, transfer, conveyance or other disposition of
assets between or among the Company and any of its Wholly Owned Subsidiaries or
any of the Guarantors.

SECTION 5.02.  SUCCESSOR CORPORATION SUBSTITUTED.

         Upon any consolidation or merger, or any sale, assignment, transfer,
lease, conveyance or other disposition of all or substantially all of the assets
of the Company in accordance with Section 5.01 hereof, the successor corporation
formed by such consolidation or into or with which the Company is merged or to
which such sale, assignment, transfer, lease, conveyance or other disposition is
made shall succeed to, and be substituted for (so that from and after the date
of such consolidation, merger, sale, lease, conveyance or other disposition, the
provisions of this Indenture referring to the "Company" shall refer instead to
the successor corporation and not to the Company), and may exercise every right
and power of the Company under this Indenture with the same effect as if such
successor Person had been named as the Company herein; PROVIDED, HOWEVER, that
the predecessor Company shall not be relieved from the obligation to pay the
principal of and interest on the Notes except in the case of a sale of all of
the Company's assets that meets the requirements of Section 5.01 hereof.

                                    ARTICLE 6
                              DEFAULTS AND REMEDIES

SECTION 6.01.  EVENTS OF DEFAULT.

         An "Event of Default" occurs if:

         (a)  the Company defaults for 30 days in the payment when due of
interest on, or Liquidated Damages with respect to, the Notes;

         (b)  the Company defaults in the payment when due of principal of or
premium, if any, on the Notes (including in connection with an offer to
purchase);

         (c)  the Company fails to comply with any of the provisions of
Section 4.10 or Section 5.01 hereof and such failure shall have continued for 15
days, after notice from the Company or any Holder of the Notes or the Company or
any of its Subsidiaries fails to comply with the provisions of Section 4.07 or
Section 4.09 hereof, and such failure shall have continued for 30 days after
notice from the Company or any Holder of the Notes;

                                      49
<PAGE>

         (d)  the Company or any of its Restricted Subsidiaries fails to
observe or perform any other covenant or other agreement in this Indenture and
such failure continues for 60 days after notice to the Company by the Trustee or
the Holders of at least 25% in aggregate principal amount of the Notes then
outstanding;

         (e)  a default occurs under any mortgage, indenture or instrument
under which there may be issued or by which there may be secured or evidenced
any Indebtedness for money borrowed by the Company or any of its Restricted
Subsidiaries (or the payment of which is guaranteed by the Company or any of its
Restricted Subsidiaries), whether such Indebtedness or guarantee now exists, or
is created after the date of this Indenture, if that default: (i) is caused by a
failure to pay principal of or premium, if any, or interest on such Indebtedness
prior to the expiration of the grace period provided in such mortgage, indenture
or instrument (a "PAYMENT DEFAULT"); or (ii) results in the acceleration of such
Indebtedness prior to its express maturity, and, in each case, the principal
amount of any such Indebtedness, together with the principal amount of any other
such Indebtedness under which there has been a Payment Default or the maturity
of which has been so accelerated, aggregates $15.0 million or more;

         (f)  a final judgment or final judgments for the payment of money are
entered by a court or courts of competent jurisdiction against the Company or
any of its Restricted Subsidiaries that are Significant Subsidiaries or any
group of Restricted Subsidiaries that, taken as a whole, would constitute a
Significant Subsidiary and such judgment or judgments remain undischarged for a
period (during which execution shall not be effectively stayed) of 60 days,
PROVIDED that the aggregate of all such undischarged judgments exceeds $15.0
million;

         (g)  the Company or any of its Restricted Subsidiaries that are
Significant Subsidiaries or any group of Restricted Subsidiaries that, taken as
a whole, would constitute a Significant Subsidiary pursuant to or within the
meaning of Bankruptcy Law:

              (i)   commences a voluntary case,

              (ii)  consents to the entry of an order for relief against it in
an involuntary case,

              (iii) consents to the appointment of a custodian of it or for
all or substantially all of its property,

              (iv)  makes a general assignment for the benefit of its
creditors, or

              (v)   generally is not paying its debts as they become due; or

         (h)  a court of competent jurisdiction enters an order or decree
under any Bankruptcy Law that:

              (i)   is for relief against the Company or any of its Restricted
      Subsidiaries that are Significant Subsidiaries or any group of Restricted
      Subsidiaries that, taken as a whole, would constitute a Significant
      Subsidiary in an involuntary case;

              (ii)  appoints a custodian of the Company or any of its
      Restricted Subsidiaries that are Significant Subsidiaries or any group of
      Restricted Subsidiaries that, taken as a whole, would constitute a
      Significant Subsidiary or for all or substantially all of the property of
      the Company or

                                      50

<PAGE>

      any of its Restricted Subsidiaries that are Significant Subsidiaries or
      any group of Restricted Subsidiaries that, taken as a whole, would
      constitute a Significant Subsidiary; or

              (iii) orders the liquidation of the Company or any of its
      Restricted Subsidiaries that are Significant Subsidiaries or any group of
      Restricted Subsidiaries that, taken as a whole, would constitute a
      Significant Subsidiary;

and the order or decree remains unstayed and in effect for 60 consecutive
days; or

         (i) except as permitted by this Indenture, any Note Guarantee is
held in any judicial proceeding to be unenforceable or invalid or shall cease
for any reason to be in full force and effect or any Guarantor, or any Person
acting on behalf of any Guarantor, shall deny or disaffirm its obligations under
such Guarantor's Note Guarantee.

SECTION 6.02.  ACCELERATION.

         If any Event of Default (other than an Event of Default specified in
clause (g) or (h) of Section 6.01 hereof with respect to the Company, any
Restricted Subsidiary that is a Significant Subsidiary or any group of
Restricted Subsidiaries that, taken as a whole, would constitute a Significant
Subsidiary) occurs and is continuing, the Trustee or the Holders of at least 25%
in principal amount of the then outstanding Notes may declare all the Notes to
be due and payable immediately. Upon any such declaration, the Notes shall
become due and payable immediately. Notwithstanding the foregoing, if an Event
of Default specified in clause (g) or (h) of Section 6.01 hereof occurs with
respect to the Company, any of its Restricted Subsidiaries that are Significant
Subsidiaries or any group of Restricted Subsidiaries that, taken as a whole,
would constitute a Significant Subsidiary, all outstanding Notes shall be due
and payable immediately without further action or notice. The Holders of a
majority in aggregate principal amount of the then outstanding Notes by written
notice to a Responsible Officer of the Trustee may on behalf of all of the
Holders rescind an acceleration and its consequences if the rescission would not
conflict with any judgment or decree and if all existing Events of Default
(except nonpayment of principal, interest or premium that has become due solely
because of the acceleration) have been cured or waived.

         If an Event of Default occurs on or after March 1, 2005 by reason of
any willful action (or inaction) taken (or not taken) by or on behalf of the
Company with the intention of avoiding payment of the premium that the Company
would have had to pay if the Company then had elected to redeem the Notes
pursuant to Section 3.07 hereof, then, upon acceleration of the Notes, an
equivalent premium shall also become and be immediately due and payable, to the
extent permitted by law, anything in this Indenture or in the Notes to the
contrary notwithstanding. If an Event of Default occurs prior to March 1, 2005
by reason of any willful action (or inaction) taken (or not taken) by or on
behalf of the Company with the intention of avoiding the prohibition on
redemption of the Notes prior to such date, then, upon acceleration of the
Notes, an additional premium shall also become and be immediately due and
payable in an amount, for each of the 12-month periods beginning on March 1 of
the years set forth below, as set forth below (expressed as a percentage of the
principal amount of the Notes on the date of payment that would otherwise be due
but for the provisions of this sentence):

                                      51
<PAGE>

<TABLE>
<CAPTION>
         YEAR                                                PERCENTAGE
         ----                                                ----------
         <S>                                                 <C>
         2001.............................................    108.375%
         2002.............................................    107.328%
         2003.............................................    106.282%
         2004.............................................    105.235%
</TABLE>

SECTION 6.03.  OTHER REMEDIES.

         If an Event of Default occurs and is continuing, the Trustee may
pursue any available remedy to collect the payment of principal, premium, if
any, and interest on the Notes or to enforce the performance of any provision of
the Notes or this Indenture.

         The Trustee may maintain a proceeding even if it does not possess
any of the Notes or does not produce any of them in the proceeding. A delay or
omission by the Trustee or any Holder of a Note in exercising any right or
remedy accruing upon an Event of Default shall not impair the right or remedy or
constitute a waiver of or acquiescence in the Event of Default. All remedies are
cumulative to the extent permitted by law.

SECTION 6.04.  WAIVER OF PAST DEFAULTS.

         Holders of not less than a majority in aggregate principal amount of
the then outstanding Notes by notice to the Trustee may on behalf of the Holders
of all of the Notes waive an existing Default or Event of Default and its
consequences hereunder, except a continuing Default or Event of Default in the
payment of the principal of, premium if any, or interest on, the Notes
(including in connection with an offer to purchase) (PROVIDED, HOWEVER, that the
Holders of a majority in aggregate principal amount of the then outstanding
Notes may rescind an acceleration and its consequences, including any related
payment default that resulted from such acceleration). Upon any such waiver,
such Default shall cease to exist, and any Event of Default arising therefrom
shall be deemed to have been cured for every purpose of this Indenture; but no
such waiver shall extend to any subsequent or other Default or impair any right
consequent thereon.

SECTION 6.05.  CONTROL BY MAJORITY.

         Holders of a majority in principal amount of the then outstanding
Notes may direct the time, method and place of conducting any proceeding for
exercising any remedy available to the Trustee or exercising any trust or power
conferred on it. However, the Trustee may refuse to follow any direction that
conflicts with law or this Indenture that the Trustee determines may be unduly
prejudicial to the rights of other Holders of Notes or that may involve the
Trustee in personal liability.

SECTION 6.06.  LIMITATION ON SUITS.

         A Holder of a Note may pursue a remedy with respect to this
Indenture or the Notes only if:

         (a)  the Holder of a Note gives to a Responsible Officer of the
Trustee written notice of a continuing Event of Default;

         (b)  the Holders of at least 25% in principal amount of the then
outstanding Notes make a written request to the Trustee to pursue the remedy;

                                      52
<PAGE>

         (c)  such Holder of a Note or Holders of Notes offer and, if
requested, provide to the Trustee indemnity satisfactory to the Trustee against
any loss, liability or expense;

         (d)  the Trustee does not comply with the request within 60 days
after receipt of the request and the offer and, if requested, the provision of
indemnity; and

         (e)  during such 60-day period the Holders of a majority in principal
amount of the then outstanding Notes do not give the Trustee a direction
inconsistent with the request.

         A Holder of a Note may not use this Indenture to prejudice the
rights of another Holder of a Note or to obtain a preference or priority over
another Holder of a Note.

SECTION 6.07.  RIGHTS OF HOLDERS OF NOTES TO RECEIVE PAYMENT.

         Notwithstanding any other provision of this Indenture, the right of
any Holder of a Note to receive payment of principal, premium, if any, and
interest on the Note, on or after the respective due dates expressed in the Note
(including in connection with an offer to purchase), or to bring suit for the
enforcement of any such payment on or after such respective dates, shall not be
impaired or affected without the consent of such Holder.

SECTION 6.08.  COLLECTION SUIT BY TRUSTEE.

         If an Event of Default specified in Section 6.01(a) or (b) occurs
and is continuing, the Trustee is authorized to recover judgment in its own name
and as trustee of an express trust against the Company for the whole amount of
principal of, premium, if any, and interest remaining unpaid on the Notes and
interest on overdue principal and, to the extent lawful, interest and such
further amount as shall be sufficient to cover the costs and expenses of
collection, including the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel.

SECTION 6.09.  TRUSTEE MAY FILE PROOFS OF CLAIM.

         The Trustee is authorized to file such proofs of claim and other
papers or documents as may be necessary or advisable in order to have the claims
of the Trustee (including any claim for the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel) and the
Holders of the Notes allowed in any judicial proceedings relative to the Company
(or any other obligor upon the Notes), its creditors or its property and shall
be entitled and empowered to collect, receive and distribute any money or other
property payable or deliverable on any such claims and any custodian in any such
judicial proceeding is hereby authorized by each Holder to make such payments to
the Trustee, and in the event that the Trustee shall consent to the making of
such payments directly to the Holders, to pay to the Trustee any amount due to
it for the reasonable compensation, expenses, disbursements and advances of the
Trustee, its agents and counsel, and any other amounts due the Trustee under
Section 7.07 hereof. To the extent that the payment of any such compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel, and
any other amounts due the Trustee under Section 7.07 hereof out of the estate in
any such proceeding, shall be denied for any reason, payment of the same shall
be secured by a Lien on, and shall be paid out of, any and all distributions,
dividends, money, securities and other properties that the Holders may be
entitled to receive in such proceeding whether in liquidation or under any plan
of reorganization or arrangement or otherwise. Nothing herein contained shall be
deemed to authorize the Trustee to authorize or consent to or accept or adopt on
behalf of any Holder any plan of reorganization, arrangement, adjustment or
composition affecting the Notes or the

                                      53
<PAGE>

rights of any Holder, or to authorize the Trustee to vote in respect of the
claim of any Holder in any such proceeding.

SECTION 6.10.  PRIORITIES.

         If the Trustee collects any money pursuant to this Article, it shall
pay out the money in the following order:

               FIRST: to the Trustee, its agents and attorneys for amounts due
     under Section 7.07 hereof, including payment of all compensation, expense
     and liabilities incurred, and all advances made, by the Trustee and the
     costs and expenses of collection;

               SECOND: to Holders of Notes for amounts due and unpaid on the
     Notes for principal, premium, if any, and interest, ratably, without
     preference or priority of any kind, according to the amounts due and
     payable on the Notes for principal, premium, if any and interest,
     respectively; and

               THIRD: to the Company or to such party as a court of competent
     jurisdiction shall direct.

         The Trustee may fix a record date and payment date for any payment
to Holders of Notes pursuant to this Section 6.10.

SECTION 6.11.  UNDERTAKING FOR COSTS.

         In any suit for the enforcement of any right or remedy under this
Indenture or in any suit against the Trustee for any action taken or omitted by
it as a Trustee, a court in its discretion may require the filing by any party
litigant in the suit of an undertaking to pay the costs of the suit, and the
court in its discretion may assess reasonable costs, including reasonable
attorneys' fees and expenses, against any party litigant in the suit, having due
regard to the merits and good faith of the claims or defenses made by the party
litigant. This Section does not apply to a suit by the Trustee, a suit by a
Holder of a Note pursuant to Section 6.07 hereof, or a suit by Holders of more
than 10% in principal amount of the then outstanding Notes.

                                    ARTICLE 7
                                     TRUSTEE

SECTION 7.01.  DUTIES OF TRUSTEE.

         (a)  If an Event of Default has occurred and is continuing, the
Trustee shall exercise such of the rights and powers vested in it by this
Indenture, and use the same degree of care and skill in its exercise, as a
prudent person would exercise or use under the circumstances in the conduct of
such person's own affairs.

         (b)  Except during the continuance of an Event of Default:

         (i)  the duties of the Trustee shall be determined solely by the
express provisions of this Indenture and the Trustee need perform only those
duties that are specifically set forth in this Indenture

                                      54
<PAGE>

and no others, and no implied covenants or obligations shall be read into
this Indenture against the Trustee; and

         (ii)  in the absence of bad faith on its part, the Trustee may
conclusively rely, as to the truth of the statements and the correctness of the
opinions expressed therein, upon certificates or opinions furnished to the
Trustee and conforming to the requirements of this Indenture. However, in the
case of any such certificates or opinions which by any provision hereof are
specifically required to be furnished to the Trustee, the Trustee shall examine
the certificates and opinions to determine whether or not they conform to the
requirements of this Indenture.

         (c)   The Trustee may not be relieved from liabilities for its own
negligent action, its own negligent failure to act, or its own willful
misconduct, except that:

         (i)   this paragraph does not limit the effect of paragraph (b) of
this Section;

         (ii)  the Trustee shall not be liable for any error of judgment made
in good faith by a Responsible Officer, unless it is proved that the Trustee was
negligent in ascertaining the pertinent facts; and

         (iii) the Trustee shall not be liable with respect to any action it
takes or omits to take in good faith in accordance with a direction received by
it pursuant to Section 6.05 hereof.

         (d)   Whether or not therein expressly so provided, every provision of
this Indenture that in any way relates to the Trustee is subject to paragraphs
(a), (b), and (c) of this Section.

         (e)   No provision of this Indenture shall require the Trustee to
expend or risk its own funds or incur any liability. The Trustee shall be under
no obligation to exercise any of its rights and powers under this Indenture at
the request of any Holders, unless such Holder shall have offered to the Trustee
security and indemnity satisfactory to it against any loss, liability or
expense.

         (f)   The Trustee shall not be liable for interest on any money
received by it except as the Trustee may agree in writing with the Company.
Money held in trust by the Trustee need not be segregated from other funds
except to the extent required by law.

SECTION 7.02.  RIGHTS OF TRUSTEE.

         (a)  The Trustee may conclusively rely upon any document believed by
it to be genuine and to have been signed or presented by the proper Person. The
Trustee need not investigate any fact or matter stated in the document.

         (b)  Before the Trustee acts or refrains from acting, it may require
an Officers' Certificate or an Opinion of Counsel or both. The Trustee shall not
be liable for any action it takes or omits to take in good faith in reliance on
such Officers' Certificate or Opinion of Counsel. The Trustee may consult with
counsel of its selection and the advice of such counsel or any Opinion of
Counsel shall be full and complete authorization and protection from liability
in respect of any action taken, suffered or omitted by it hereunder in good
faith and in reliance thereon.

         (c)  The Trustee may act through its attorneys and agents and shall
not be responsible for the misconduct or negligence of any agent appointed with
due care.

                                      55
<PAGE>

         (d)  The Trustee shall not be liable for any action it takes or omits
to take in good faith that it believes to be authorized or within the rights or
powers conferred upon it by this Indenture.

         (e)  Unless otherwise specifically provided in this Indenture, any
demand, request, direction or notice from the Company shall be sufficient if
signed by an Officer of the Company.

         (f)  The Trustee shall be under no obligation to exercise any of the
rights or powers vested in it by this Indenture at the request or direction of
any of the Holders unless such Holders shall have offered to the Trustee
security or indemnity reasonably satisfactory to it against the costs, expenses
and liabilities that might be incurred by it in compliance with such request or
direction.

         (g)  the Trustee shall not be bound to make any investigation into
the facts or matters stated in any document, but the Trustee, in its discretion,
may make such further inquiry or investigation into such facts or matters as it
may see fit, and, if the Trustee shall determine to make such further inquiry or
investigation, it shall be entitled to examine the books, records and premises
of the Company, personally or by agent or attorney at the sole cost of the
Company and shall incur no liability or additional liability of any kind by
reason of such inquiry or investigation;

         (h)  the Trustee shall not be deemed to have notice of any Default or
Event of Default unless a Responsible Officer of the Trustee has actual
knowledge thereof or unless written notice of any event which is in fact such a
default is received by the Trustee at the Corporate Trust Officer of the
Trustee, and such notice references the securities and this Indenture; and

         (i)  the rights, privileges, protections, immunities and benefits
given to the Trustee, including, without limitation, its right to be
indemnified, are extended to, and shall be enforceable by, the Trustee in each
of its capacities hereunder, and to each agent, custodian and other Person
employed to act hereunder.

SECTION 7.03.  INDIVIDUAL RIGHTS OF TRUSTEE.

         The Trustee in its individual or any other capacity may become the
owner or pledgee of Notes and may otherwise deal with the Company or any
Affiliate of the Company with the same rights it would have if it were not
Trustee. However, in the event that the Trustee acquires any conflicting
interest it must eliminate such conflict within 90 days, apply to the SEC for
permission to continue as trustee or resign. Any Agent may do the same with like
rights and duties. The Trustee is also subject to Sections 7.10 and 7.11 hereof.

SECTION 7.04.  TRUSTEE'S DISCLAIMER.

         The Trustee shall not be responsible for and makes no representation
as to the validity or adequacy of this Indenture or the Notes, it shall not be
accountable for the Company's use of the proceeds from the Notes or any money
paid to the Company or upon the Company's direction under any provision of this
Indenture, it shall not be responsible for the use or application of any money
received by any Paying Agent other than the Trustee, and it shall not be
responsible for any statement or recital herein or any statement in the Notes or
any other document in connection with the sale of the Notes or pursuant to this
Indenture other than its certificate of authentication.

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<PAGE>

SECTION 7.05.  NOTICE OF DEFAULTS.

         If a Default or Event of Default occurs and is continuing and if it
is actually known to a Responsible Officer of the Trustee, the Trustee shall
mail to Holders of Notes a notice of the Default or Event of Default within 90
days after it occurs. Except in the case of a Default or Event of Default in
payment of principal of, premium, if any, or interest on any Note, the Trustee
may withhold the notice if and so long as a committee of its Responsible
Officers in good faith determines that withholding the notice is in the
interests of the Holders of the Notes.

SECTION 7.06.  REPORTS BY TRUSTEE TO HOLDERS OF THE NOTES.

         Within 60 days after each January 15 beginning with the January 15
following the date of this Indenture, and for so long as Notes remain
outstanding, the Trustee shall mail to the Holders of the Notes a brief report
dated as of such reporting date that complies with TIA Section 313(a) (but if
no event described in TIA Section 313(a) has occurred within the twelve
months preceding the reporting date, no report need be transmitted). The
Trustee also shall comply with TIA Section 313(b)(2). The Trustee shall also
transmit by mail all reports as required by TIA Section 313(c).

         A copy of each report at the time of its mailing to the Holders of
Notes shall be mailed to the Company and filed with the SEC and each stock
exchange on which the Notes are listed in accordance with TIA Section 313(d).
The Company shall promptly notify the Trustee when the Notes are listed on
any stock exchange and any delisting therefrom.

SECTION 7.07.  COMPENSATION AND INDEMNITY.

         The Company shall pay to the Trustee from time to time such
compensation as shall be agreed upon from time to time in writing for its
acceptance of this Indenture and services hereunder. The Trustee's compensation
shall not be limited by any law on compensation of a trustee of an express
trust. The Company shall reimburse the Trustee promptly upon request for all
reasonable disbursements, advances and expenses incurred or made by it in
addition to the compensation for its services. Such expenses shall include the
reasonable compensation, disbursements and expenses of the Trustee's agents and
counsel.

         The Company shall indemnify the Trustee (and any predecessor
Trustee) against any and all losses, liabilities, claims, damages or expenses
(including taxes other than taxes based on the income of the Trustee) or
expenses incurred by it arising out of or in connection with the acceptance or
administration of its duties under this Indenture, including the costs and
expenses of enforcing this Indenture against the Company (including this Section
7.07) and defending itself against any claim (whether asserted by the Company or
any Holder or any other person) or liability in connection with the exercise or
performance of any of its powers or duties hereunder, except to the extent any
such loss, liability, claims, damages or expense may be attributable to its
negligence or willful misconduct. The Trustee shall notify the Company promptly
of any claim for which it may seek indemnity. Failure by the Trustee to so
notify the Company shall not relieve the Company of its obligations hereunder.
The Company shall defend the claim and the Trustee shall cooperate in the
defense. The Trustee may have separate counsel and the Company shall pay the
reasonable fees and expenses of such counsel. The Company need not pay for any
settlement made without its consent, which consent shall not be unreasonably
withheld.

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<PAGE>

         The obligations of the Company under this Section 7.07 shall survive
the satisfaction and discharge of this Indenture.

         To secure the Company's payment obligations in this Section, the
Trustee shall have a Lien prior to the Notes on all money or property held or
collected by the Trustee, except that held in trust to pay principal and
interest on particular Notes. Such Lien shall survive the satisfaction and
discharge of this Indenture.

         When the Trustee incurs expenses or renders services after an Event
of Default specified in Section 6.01(g) or (h) hereof occurs, the expenses and
the compensation for the services (including the fees and expenses of its agents
and counsel) are intended to constitute expenses of administration under any
Bankruptcy Law.

         The Trustee shall comply with the provisions of TIA Section 313(b)(2)
to the extent applicable.

SECTION 7.08.  REPLACEMENT OF TRUSTEE.

         A resignation or removal of the Trustee and appointment of a
successor Trustee shall become effective only upon the successor Trustee's
acceptance of appointment as provided in this Section.

         The Trustee may resign in writing at any time and be discharged from
the trust hereby created by so notifying the Company. The Holders of a majority
in principal amount of the then outstanding Notes may remove the Trustee by so
notifying the Trustee and the Company in writing. The Company may remove the
Trustee if:

         (a)  the Trustee fails to comply with Section 7.10 hereof;

         (b)  the Trustee is adjudged a bankrupt or an insolvent or an order
for relief is entered with respect to the Trustee under any Bankruptcy Law;

         (c)  a custodian or public officer takes charge of the Trustee or its
property; or

         (d)  the Trustee becomes incapable of acting.

         If the Trustee resigns or is removed or if a vacancy exists in the
office of Trustee for any reason, the Company shall promptly appoint a successor
Trustee. Within one year after the successor Trustee takes office, the Holders
of a majority in principal amount of the then outstanding Notes may appoint a
successor Trustee to replace the successor Trustee appointed by the Company.

         If a successor Trustee does not take office within 60 days after the
retiring Trustee resigns or is removed, the retiring Trustee, the Company, or
the Holders of at least 10% in principal amount of the then outstanding Notes
may petition, at the expense of the Company, any court of competent jurisdiction
for the appointment of a successor Trustee.

         If the Trustee, after written request by any Holder who has been a
Holder for at least six months, fails to comply with Section 7.10, such Holder
may petition any court of competent jurisdiction for the removal of the Trustee
and the appointment of a successor Trustee.

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<PAGE>

         A successor Trustee shall deliver a written acceptance of its
appointment to the retiring Trustee and to the Company. Thereupon, the
resignation or removal of the retiring Trustee shall become effective, and the
successor Trustee shall have all the rights, powers and duties of the Trustee
under this Indenture. The successor Trustee shall mail a notice of its
succession to Holders. The retiring Trustee shall promptly transfer all property
held by it as Trustee to the successor Trustee, PROVIDED all sums owing to the
Trustee hereunder have been paid and subject to the Lien provided for in Section
7.07 hereof. Notwithstanding replacement of the Trustee pursuant to this Section
7.08, the Company's obligations under Section 7.07 hereof shall continue for the
benefit of the retiring Trustee.

SECTION 7.09.  SUCCESSOR TRUSTEE BY MERGER, ETC.

         If the Trustee consolidates, merges or converts into, or transfers
all or substantially all of its corporate trust business to, another
corporation, the successor corporation without any further act shall be the
successor Trustee.

SECTION 7.10.  ELIGIBILITY; DISQUALIFICATION.

         There shall at all times be a Trustee hereunder that is a
corporation organized and doing business under the laws of the United States of
America or of any state thereof that is authorized under such laws to exercise
corporate trustee power, that is subject to supervision or examination by
federal or state authorities and that has a combined capital and surplus of at
least $100 million as set forth in its most recent published annual report of
condition.

         This Indenture shall always have a Trustee who satisfies the
requirements of TIA Section 310(a)(1), (2) and (5). The Trustee is subject to
TIA Section 310(b).

SECTION 7.11.  PREFERENTIAL COLLECTION OF CLAIMS AGAINST COMPANY.

         The Trustee is subject to TIA Section 311(a), excluding any creditor
relationship listed in TIA Section 311(b). A Trustee who has resigned or been
removed shall be subject to TIA Section 311(a) to the extent indicated therein.

                                    ARTICLE 8
                    LEGAL DEFEASANCE AND COVENANT DEFEASANCE

SECTION 8.01.  OPTION TO EFFECT LEGAL DEFEASANCE OR COVENANT DEFEASANCE.

         The Company may, at the option of its Board of Directors evidenced
by a resolution set forth in an Officers' Certificate, at any time, elect to
have either Section 8.02 or 8.03 hereof be applied to all outstanding Notes and
all outstanding Note Guarantees upon compliance with the conditions set forth
below in this Article Eight.

SECTION 8.02.  LEGAL DEFEASANCE AND DISCHARGE.

         Upon the Company's exercise under Section 8.01 hereof of the option
applicable to this Section 8.02, the Company shall, subject to the satisfaction
of the conditions set forth in Section 8.04 hereof, be deemed to have been
discharged from its obligations with respect to all outstanding Notes and the
Guarantors shall, subject the satisfaction of the conditions set forth in
Section 8.04 hereof, be deemed

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<PAGE>

to have been discharged from their obligations with respect to all
outstanding Note Guarantees on the date the conditions set forth below are
satisfied (hereinafter, "LEGAL DEFEASANCE"). For this purpose, Legal
Defeasance means that the Company shall be deemed to have paid and discharged
the entire Indebtedness represented by the outstanding Notes and the
Guarantors shall be deemed to have paid and discharged the entire
Indebtedness represented by the outstanding Note Guarantees, which shall
thereafter be deemed to be "outstanding" only for the purposes of Section
8.05 hereof and the other Sections of this Indenture referred to in (a) and
(b) below, and to have satisfied all their other obligations under such Notes
and Note Guarantees and this Indenture (and the Trustee, on demand of and at
the expense of the Company, shall execute proper instruments acknowledging
the same), except for the following provisions which shall survive until
otherwise terminated or discharged hereunder: (a) the rights of Holders of
outstanding Notes to receive solely from the trust fund described in Section
8.04 hereof, and as more fully set forth in such Section, payments in respect
of the principal of, premium, if any, and interest and Liquidated Damages, if
any, on such Notes when such payments are due, (b) the Company's obligations
with respect to such Notes under Article 2 and Section 4.02 hereof, (c) the
rights, powers, trusts, duties and immunities of the Trustee hereunder and
the Company's obligations in connection therewith and (d) this Article Eight.
Subject to compliance with this Article Eight, the Company may exercise its
option under this Section 8.02 notwithstanding the prior exercise of its
option under Section 8.03 hereof.

SECTION 8.03.  COVENANT DEFEASANCE.

         Upon the Company's exercise under Section 8.01 hereof of the option
applicable to this Section 8.03, the Company and the Guarantors shall, subject
to the satisfaction of the conditions set forth in Section 8.04 hereof, be
released from their obligations under the covenants contained in Sections 4.05,
4.07, 4.08, 4.09, 4.10, 4.11, 4.12, 4.13, 4.14 (except with respect to the
obligation to maintain the corporate existence of the Company), 4.15, 4.16,
4.17, 4.18, 4.19, 4.20, and 4.21 hereof and clause (4) of clause (ii) and the
penultimate sentence of Section 5.01 hereof with respect to the outstanding
Notes on and after the date the conditions set forth in Section 8.04 are
satisfied (hereinafter, "COVENANT DEFEASANCE"), and the Notes shall thereafter
be deemed not "outstanding" for the purposes of any direction, waiver, consent
or declaration or act of Holders (and the consequences of any thereof) in
connection with such covenants, but shall continue to be deemed "outstanding"
for all other purposes hereunder (it being understood that such Notes shall not
be deemed outstanding for accounting purposes). For this purpose, Covenant
Defeasance means that, with respect to the outstanding Notes, the Company may
omit to comply with and shall have no liability in respect of any term,
condition or limitation set forth in any such covenant, whether directly or
indirectly, by reason of any reference elsewhere herein to any such covenant or
by reason of any reference in any such covenant to any other provision herein or
in any other document and such omission to comply not including non-payment,
bankruptcy, receivership, rehabilitation and insolvency events shall not
constitute a Default or an Event of Default under Section 6.01 hereof, but,
except as specified above, the remainder of this Indenture and such Notes shall
be unaffected thereby. In addition, upon the Company's exercise under Section
8.01 hereof of the option applicable to this Section 8.03 hereof, subject to the
satisfaction of the conditions set forth in Section 8.04 hereof, Sections
6.01(c) through 6.01(f) hereof shall not constitute Events of Default.

SECTION 8.04.  CONDITIONS TO LEGAL OR COVENANT DEFEASANCE.

         The following shall be the conditions to the application of either
Section 8.02 or 8.03 hereof to the outstanding Notes:

         In order to exercise either Legal Defeasance or Covenant Defeasance:

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            (a) the Company must irrevocably deposit with the Trustee, in trust,
for the benefit of the Holders of the Notes, cash in U.S. dollars, non-callable
Government Securities, or a combination thereof, in such amounts as will be
sufficient, in the opinion of a nationally recognized firm of independent public
accountants, to pay the principal of, premium, if any, and interest and
Liquidated Damages, if any, on the outstanding Notes on the stated maturity or
on the applicable redemption date, as the case may be, and the Company must
specify whether the Notes are being defeased to maturity or to a particular
redemption date;

            (b) in the case of an election under Section 8.02 hereof, the
Company shall have delivered to the Trustee an Opinion of Counsel reasonably
acceptable to the Trustee confirming that (i) the Company has received from, or
there has been published by, the Internal Revenue Service a ruling or (ii) since
the date of this Indenture, there has been a change in the applicable federal
income tax law, in either case to the effect that, and based thereon such
opinion of counsel shall confirm that, the Holders of the outstanding Notes will
not recognize income, gain or loss for federal income tax purposes as a result
of such Legal Defeasance and will be subject to federal income tax on the same
amounts, in the same manner and at the same times as would have been the case if
such Legal Defeasance had not occurred;

            (c) in the case of an election under Section 8.03 hereof, the
Company shall have delivered to the Trustee an Opinion of Counsel reasonably
acceptable to the Trustee confirming that the Holders of the outstanding Notes
will not recognize income, gain or loss for federal income tax purposes as a
result of such Covenant Defeasance and will be subject to federal income tax on
the same amounts, in the same manner and at the same times as would have been
the case if such Covenant Defeasance had not occurred;

            (d) no Default or Event of Default shall have occurred and be
continuing on the date of such deposit (other than a Default or Event of Default
resulting from the borrowing of funds to be applied to such deposit) or insofar
as Sections 6.01(g) and 6.01(h) hereof are concerned, at any time in the period
ending on the 91st day after the date of deposit;

            (e) such Legal Defeasance or Covenant Defeasance shall not result in
a breach or violation of, or constitute a default under, any material agreement
or instrument (other than this Indenture) to which the Company or any of its
Restricted Subsidiaries is a party or by which the Company or any of its
Restricted Subsidiaries is bound;

            (f) the Company shall have delivered to the Trustee an Opinion of
Counsel to the effect that on the 91st day following the deposit, the trust
funds will not be subject to the effect of any applicable bankruptcy,
insolvency, reorganization or similar laws affecting creditors' rights
generally;

            (g) the Company shall have delivered to the Trustee an Officers'
Certificate stating that the deposit was not made by the Company with the intent
of preferring the Holders of Notes over any other creditors of the Company or
with the intent of defeating, hindering, delaying or defrauding any other
creditors of the Company or others; and

            (h) the Company shall have delivered to the Trustee an Officers'
Certificate and an Opinion of Counsel, each stating that all conditions
precedent provided for or relating to the Legal Defeasance or the Covenant
Defeasance have been complied with.

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<PAGE>

SECTION 8.05.     DEPOSITED MONEY AND GOVERNMENT SECURITIES TO BE HELD IN TRUST;
                  OTHER MISCELLANEOUS PROVISIONS.

            Subject to Section 8.06 hereof, all money and non-callable
Government Securities (including the proceeds thereof) deposited with the
Trustee (or other qualifying trustee, collectively for purposes of this Section
8.05, the "Trustee") pursuant to Section 8.04 hereof in respect of the
outstanding Notes shall be held in trust and applied by the Trustee, in
accordance with the provisions of such Notes and this Indenture, to the payment,
either directly or through any Paying Agent (including the Company acting as
Paying Agent) as the Trustee may determine, to the Holders of such Notes of all
sums due and to become due thereon in respect of principal, premium, if any, and
interest, but such money need not be segregated from other funds except to the
extent required by law.

            The Company shall pay and indemnify the Trustee against any tax, fee
or other charge imposed on or assessed against the cash or non-callable
Government Securities deposited pursuant to Section 8.04 hereof or the principal
and interest received in respect thereof other than any such tax, fee or other
charge which by law is for the account of the Holders of the outstanding Notes.

            Anything in this Article Eight to the contrary notwithstanding, the
Trustee shall deliver or pay to the Company from time to time upon the request
of the Company any money or non-callable Government Securities held by it as
provided in Section 8.04 hereof which, in the opinion of a nationally recognized
firm of independent public accountants expressed in a written certification
thereof delivered to the Trustee (which may be the opinion delivered under
Section 8.04(a) hereof), are in excess of the amount thereof that would then be
required to be deposited to effect an equivalent Legal Defeasance or Covenant
Defeasance.

SECTION 8.06.     REPAYMENT TO COMPANY.

            Any money deposited with the Trustee or any Paying Agent, or then
held by the Company, in trust for the payment of the principal of, premium, if
any, or interest on any Note and remaining unclaimed for two years after such
principal, and premium, if any, or interest has become due and payable shall be
paid to the Company on its request or (if then held by the Company) shall be
discharged from such trust; and the Holder of such Note shall thereafter look
only to the Company for payment thereof, and all liability of the Trustee or
such Paying Agent with respect to such trust money, and all liability of the
Company as trustee thereof, shall thereupon cease; PROVIDED, HOWEVER, that the
Trustee or such Paying Agent, before being required to make any such repayment,
may at the expense of the Company cause to be published once, in the New York
Times and The Wall Street Journal (national edition), notice that such money
remains unclaimed and that, after a date specified therein, which shall not be
less than 30 days from the date of such notification or publication, any
unclaimed balance of such money then remaining will be repaid to the Company.

SECTION 8.07.     REINSTATEMENT.

            If the Trustee or Paying Agent is unable to apply any United States
dollars or non-callable Government Securities in accordance with Section 8.02 or
8.03 hereof, as the case may be, by reason of any order or judgment of any court
or governmental authority enjoining, restraining or otherwise prohibiting such
application, then the Company's obligations under this Indenture and the Notes
shall be revived and reinstated as though no deposit had occurred pursuant to
Section 8.02 or 8.03 hereof until such time as the Trustee or Paying Agent is
permitted to apply all such money in accordance with Section

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<PAGE>

8.02 or 8.03 hereof, as the case may be; PROVIDED, HOWEVER, that, if the
Company makes any payment of principal of, premium, if any, or interest on any
Note following the reinstatement of its obligations, the Company shall be
subrogated to the rights of the Holders of such Notes to receive such payment
from the money held by the Trustee or Paying Agent.

                                    ARTICLE 9
                        AMENDMENT, SUPPLEMENT AND WAIVER

SECTION 9.01.     WITHOUT CONSENT OF HOLDERS OF NOTES.

            Notwithstanding Section 9.02 of this Indenture, the Company and the
Trustee may amend or supplement this Indenture or the Notes without the consent
of any Holder of a Note:

            (a)  to cure any ambiguity, defect or inconsistency;

            (b) to provide for uncertificated Notes in addition to or in place
of certificated Notes;

            (c) to provide for the assumption of the Company's obligations to
the Holders of the Notes by a successor to the Company pursuant to Article 5
hereof;

            (d) to make any change that would provide any additional rights or
benefits to the Holders of the Notes or that does not adversely affect the legal
rights hereunder of any Holder of the Note;

            (e) to comply with requirements of the SEC in order to effect or
maintain the qualification of this Indenture under the TIA; or

            (f)  to add Guarantors of the Notes.

            Upon the request of the Company accompanied by a resolution of its
Board of Directors authorizing the execution of any such amended or supplemental
Indenture, and upon receipt by the Trustee of the documents described in Section
7.02 hereof, the Trustee shall join with the Company in the execution of any
amended or supplemental Indenture authorized or permitted by the terms of this
Indenture and to make any further appropriate agreements and stipulations that
may be therein contained, but the Trustee shall not be obligated to enter into
such amended or supplemental Indenture that affects its own rights, duties or
immunities under this Indenture or otherwise.

SECTION 9.02.     WITH CONSENT OF HOLDERS OF NOTES.

            Except as provided below in this Section 9.02, the Company and the
Trustee may amend or supplement this Indenture (including Section 3.09, 4.10 and
4.15 hereof), the Note Guarantees and the Notes may be amended or supplemented
with the consent of the Holders of at least a majority in principal amount of
the Notes then outstanding voting as a single class (including consents obtained
in connection with a tender offer or exchange offer for, or purchase of, the
Notes), and, subject to Sections 6.04 and 6.07 hereof, any existing Default or
Event of Default (other than a Default or Event of Default in the payment of the
principal of, premium, if any, or interest on the Notes, except a payment
default resulting from an acceleration that has been rescinded) or compliance
with any provision of this Indenture, the Note Guarantees or the Notes may be
waived with the consent of the Holders of a majority in principal amount of the
then outstanding Notes voting as a single class (including consents obtained in
connection

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<PAGE>

with a tender offer or exchange offer for, or purchase of, the Notes). Section
2.08 hereof shall determine which Notes are considered to be "outstanding" for
purposes of this Section 9.02.

            Upon the request of the Company accompanied by a resolution of its
Board of Directors authorizing the execution of any such amended or supplemental
Indenture, and upon the filing with the Trustee of evidence satisfactory to the
Trustee of the consent of the Holders of Notes as aforesaid, and upon receipt by
the Trustee of the documents described in Section 7.02 hereof, the Trustee shall
join with the Company in the execution of such amended or supplemental Indenture
unless such amended or supplemental Indenture directly affects the Trustee's own
rights, duties or immunities under this Indenture or otherwise, in which case
the Trustee may in its discretion, but shall not be obligated to, enter into
such amended or supplemental Indenture.

            It shall not be necessary for the consent of the Holders of Notes
under this Section 9.02 to approve the particular form of any proposed amendment
or waiver, but it shall be sufficient if such consent approves the substance
thereof.

            After an amendment, supplement or waiver under this Section becomes
effective, the Company shall mail to the Holders of Notes affected thereby a
notice briefly describing the amendment, supplement or waiver. Any failure of
the Company to mail such notice, or any defect therein, shall not, however, in
any way impair or affect the validity of any such amended or supplemental
Indenture or waiver. Subject to Sections 6.04 and 6.07 hereof, the Holders of a
majority in aggregate principal amount of the Notes then outstanding voting as a
single class may waive compliance in a particular instance by the Company with
any provision of this Indenture or the Notes. However, without the consent of
each Holder affected, an amendment or waiver under this Section 9.02 may not
(with respect to any Notes held by a non-consenting Holder):

            (a) reduce the principal amount of Notes whose Holders must consent
to an amendment, supplement or waiver;

            (b) reduce the principal of or change the fixed maturity of any Note
or alter the provisions with respect to the redemption of the Notes except as
provided above with respect to Sections 3.09, 4.10 and 4.15 hereof;

            (c) reduce the rate of or change the time for payment of interest on
any Note;

            (d) waive a Default or Event of Default in the payment of principal
of or premium, if any, or interest on the Notes (except a rescission of
acceleration of the Notes by the Holders of at least a majority in aggregate
principal amount of the Notes and a waiver of the payment default that resulted
from such acceleration);

            (e) make any Note payable in money other than that stated in the
Notes;

            (f) make any change in the provisions of this Indenture relating to
waivers of past Defaults or the rights of Holders of Notes to receive payments
of principal of or premium, if any, or interest on the Notes;

            (g) waive a redemption payment with respect to any Note (other than
a payment required by Sections 3.09, 4.10 or 4.15 hereof); or

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<PAGE>

            (h) make any change in the foregoing amendment and waiver
provisions.

SECTION 9.03.     COMPLIANCE WITH TRUST INDENTURE ACT.

            Every amendment or supplement to this Indenture or the Notes shall
be set forth in an amended or supplemental Indenture that complies with the TIA
as then in effect.

SECTION 9.04.     REVOCATION AND EFFECT OF CONSENTS.

            Until an amendment, supplement or waiver becomes effective, a
consent to it by a Holder of a Note is a continuing consent by the Holder of a
Note and every subsequent Holder of a Note or portion of a Note that evidences
the same debt as the consenting Holder's Note, even if notation of the consent
is not made on any Note. However, any such Holder of a Note or subsequent Holder
of a Note may revoke the consent as to its Note if the Trustee receives written
notice of revocation before the date the waiver, supplement or amendment becomes
effective. An amendment, supplement or waiver becomes effective in accordance
with its terms and thereafter binds every Holder.

SECTION 9.05.     NOTATION ON OR EXCHANGE OF NOTES.

            The Trustee may place an appropriate notation about an amendment,
supplement or waiver on any Note thereafter authenticated. The Company in
exchange for all Notes may issue and the Trustee shall, upon receipt of an
Authentication Order, authenticate new Notes that reflect the amendment,
supplement or waiver.

            Failure to make the appropriate notation or issue a new Note shall
not affect the validity and effect of such amendment, supplement or waiver.

SECTION 9.06.     TRUSTEE TO SIGN AMENDMENTS, ETC.

            The Trustee shall sign any amended or supplemental Indenture
authorized pursuant to this Article Nine if the amendment or supplement does not
adversely affect the rights, duties, liabilities or immunities of the Trustee.
The Company may not sign an amendment or supplemental Indenture until the Board
of Directors approves it. In executing any amended or supplemental indenture,
the Trustee shall be entitled to receive and (subject to Section 7.01 hereof)
shall be fully protected in relying upon, in addition to the documents required
by Section 11.04 hereof, an Officer's Certificate and an Opinion of Counsel
stating that the execution of such amended or supplemental indenture is
authorized or permitted by this Indenture. The Trustee may, but shall not be
obligated to, enter into any such supplemental indenture which affects the
Trustee's own rights, duties or immunities under this Indenture or otherwise.

                                   ARTICLE 10
                           SATISFACTION AND DISCHARGE

SECTION 10.01.    SATISFACTION AND DISCHARGE.

            This Indenture will be discharged and will cease to be of further
effect as to all Notes issued hereunder, when:

                 (i) either:

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<PAGE>

                      (a) all Notes that have been authenticated (except lost,
           stolen or destroyed Notes that have been replaced or paid and notes
           for whose payment money has been deposited in trust and thereafter
           repaid to the Company) have been delivered to the Trustee for
           cancellation; or

                      (b) all Notes that have not been delivered to the Trustee
           for cancellation have become due and payable by reason of the mailing
           of a notice of redemption or otherwise or will become due and payable
           within one year, and the Company has irrevocably deposited or caused
           to be deposited with the Trustee as trust funds in trust solely for
           the benefit of the Holders, cash in U.S. dollars, non-callable
           Government Securities, or a combination of cash in U.S. dollars and
           non-callable Government Securities, in such amounts as will be
           sufficient without consideration of any reinvestment of interest, to
           pay and discharge the entire indebtedness on the Notes not delivered
           to the Trustee for cancellation for principal, premium and Liquidated
           Damages, if any, and accrued interest to the date of maturity or
           redemption;

            (ii) the deposit will not result in a breach or violation of, or
      constitute a default under, any other instrument to which the Company or
      any Guarantor is a party or by which the Company or any Guarantor is
      bound;

            (iii) the Company has paid or caused to be paid all sums payable by
      it under the Indenture; and

            (iv) the Company has delivered irrevocable instructions to the
      Trustee under the Indenture to apply the deposited money toward the
      payment of the Notes at maturity or the redemption date, as the case may
      be.

            In addition, the Company must deliver an officers' certificate and
an opinion of counsel to the Trustee stating that all conditions precedent to
satisfaction and discharge have been satisfied.

            Notwithstanding the satisfaction and discharge of this Indenture, if
money shall have been deposited with the Trustee pursuant to subclause (b) of
clause (i) of this Section 10.01, the provisions of Section 10.02 and Section
8.06 hereof shall survive.

SECTION 10.02.    APPLICATION OF TRUST MONEY.

            Subject to the provisions of Section 8.06, all money deposited with
the Trustee pursuant to Section 10.01 shall be held in trust and applied by it,
in accordance with the provisions of the Notes and this Indenture, to the
payment, either directly or through any Paying Agent (including the Company
acting as its own Paying Agent) as the Trustee may determine, to the Persons
entitled thereto, of the principal (and premium, if any) and interest for whose
payment such money has been deposited with the Trustee; but such money need not
be segregated from other funds except to the extent required by law.

            If the Trustee or Paying Agent is unable to apply any money or
Government Securities in accordance with Section 10.01 by reason of any legal
proceeding or by reason of any order or judgment of any court or governmental
authority enjoining, restraining or otherwise prohibiting such application, the
Company's and any Guarantor's obligations under this Indenture and the Notes
shall be revived and reinstated as though no deposit had occurred pursuant to
Section 10.01; provided that if the Company has made any payment of principal
of, premium, if any, or interest on any Notes because of the reinstatement of
its obligations, the Company shall be subrogated to the rights of the Holders of
such Notes to receive such payment from the money or Government Securities held
by the Trustee or Paying Agent.

                                      66

<PAGE>

                                   ARTICLE 11
                                  MISCELLANEOUS

SECTION 11.01.    TRUST INDENTURE ACT CONTROLS.

            If any provision of this Indenture limits, qualifies or conflicts
with the duties imposed by TIA Section 318(c), the imposed duties shall
control.

SECTION 11.02.    NOTICES.

            Any notice or communication by the Company, any Guarantor or the
Trustee to the others is duly given if in writing and delivered in Person or
mailed by first class mail (registered or certified, return receipt requested),
telex, telecopier or overnight air courier guaranteeing next day delivery, to
the others' address:

            If to the Company and/or any Guarantor:

            Key Energy Services, Inc.
            Two Tower Center
            20th Floor
            East Brunswick, NJ  08816
            Telecopier No.: (732) 247-5148
            Attention: General Counsel

            With a copy to:

            Porter & Hedges, L.L.P.
            700 Louisiana St.
            Suite 3500
            Houston, TX  77002
            Telecopier No.: (713) 226-0229
            Attention: Samuel N. Allen

            If to the Trustee:

            The Chase Manhattan Bank
            600 Travis, 11th Floor
            Houston, TX  77002
            Telecopier No.: (713) 577-5200
            Attention:  Gary Jones--Key Energy

            The Company, any Guarantor or the Trustee, by notice to the others
may designate additional or different addresses for subsequent notices or
communications.

            All notices and communications (other than those sent to Holders)
shall be deemed to have been duly given: at the time delivered by hand, if
personally delivered; five Business Days after being deposited in the mail,
postage prepaid, if mailed; when answered back, if telexed; when receipt
acknowledged, if telecopied; and the next Business Day after timely delivery to
the courier, if sent by overnight air courier guaranteeing next day delivery.

                                      67

<PAGE>

            Any notice or communication to a Holder shall be mailed by first
class mail, certified or registered, return receipt requested, or by overnight
air courier guaranteeing next day delivery to its address shown on the
register kept by the Registrar. Any notice or communication shall also be so
mailed to any Person described in TIA Section 313(c), to the extent required
by the TIA. Failure to mail a notice or communication to a Holder or any
defect in it shall not affect its sufficiency with respect to other Holders.

            If a notice or communication is mailed in the manner provided above
within the time prescribed, it is duly given, whether or not the addressee
receives it.

            If the Company mails a notice or communication to Holders, it shall
mail a copy to the Trustee and each Agent at the same time.

SECTION 11.03.    COMMUNICATION BY HOLDERS OF NOTES WITH OTHER HOLDERS OF NOTES.

            Holders may communicate pursuant to TIA Section 312(b) with other
Holders with respect to their rights under this Indenture or the Notes. The
Company, the Trustee, the Registrar and anyone else shall have the protection
of TIA Section 312(c).

SECTION 11.04.    CERTIFICATE AND OPINION AS TO CONDITIONS PRECEDENT.

            Upon any request or application by the Company to the Trustee to
take any action under this Indenture, the Company shall furnish to the Trustee:

            (a) an Officers' Certificate in form and substance reasonably
satisfactory to the Trustee (which shall include the statements set forth in
Section 11.05 hereof) stating that, in the opinion of the signers, all
conditions precedent and covenants, if any, provided for in this Indenture
relating to the proposed action have been satisfied; and

            (b) an Opinion of Counsel in form and substance reasonably
satisfactory to the Trustee (which shall include the statements set forth in
Section 11.05 hereof) stating that, in the opinion of such counsel, all such
conditions precedent and covenants have been satisfied.

SECTION 11.05.    STATEMENTS REQUIRED IN CERTIFICATE OR OPINION.

            Each certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture (other than a certificate
provided pursuant to TIA Section 314(a)(4)) shall comply with the provisions
of TIA Section 314(e) and shall include:

            (a) a statement that the Person making such certificate or opinion
has read such covenant or condition;

            (b) a brief statement as to the nature and scope of the examination
or investigation upon which the statements or opinions contained in such
certificate or opinion are based;

            (c) a statement that, in the opinion of such Person, he or she has
made such examination or investigation as is necessary to enable him to express
an informed opinion as to whether or not such covenant or condition has been
satisfied; and

                                      68

<PAGE>

            (d) a statement as to whether or not, in the opinion of such Person,
such condition or covenant has been satisfied.

SECTION 11.06.    RULES BY TRUSTEE AND AGENTS.

            The Trustee may make reasonable rules for action by or at a meeting
of Holders. The Registrar or Paying Agent may make reasonable rules and set
reasonable requirements for its functions.

SECTION 11.07.    NO PERSONAL LIABILITY OF DIRECTORS, OFFICERS, EMPLOYEES AND
                  STOCKHOLDERS.

      No past, present or future director, officer, employee, incorporator
or stockholder of the Company or any Guarantor, as such, shall have any
liability for any obligations of the Company or such Guarantor under the Notes,
the Note Guarantees, this Indenture or for any claim based on, in respect of, or
by reason of, such obligations or their creation. Each Holder by accepting a
Note waives and releases all such liability. The waiver and release are part of
the consideration for issuance of the Notes.

SECTION 11.08.    GOVERNING LAW.

            THE INTERNAL LAWS OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED
TO CONSTRUE THIS INDENTURE, THE NOTES AND THE NOTE GUARANTEES WITHOUT GIVING
EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE
APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY.

SECTION 11.09.    NO ADVERSE INTERPRETATION OF OTHER AGREEMENTS.

            This Indenture may not be used to interpret any other indenture,
loan or debt agreement of the Company or its Subsidiaries or of any other
Person. Any such indenture, loan or debt agreement may not be used to interpret
this Indenture.

SECTION 11.10.    SUCCESSORS.

            All agreements of the Company in this Indenture and the Notes shall
bind its successors. All agreements of the Trustee in this Indenture shall bind
its successors. All agreements of each Guarantor in this Indenture shall bind
its successors, except as otherwise provided in Section 12.06.

SECTION 11.11.    SEVERABILITY.

            In case any provision in this Indenture or in the Notes shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.

SECTION 11.12.    COUNTERPART ORIGINALS.

            The parties may sign any number of copies of this Indenture. Each
signed copy shall be an original, but all of them together represent the same
agreement.

                                      69

<PAGE>

SECTION 11.13.    TABLE OF CONTENTS, HEADINGS, ETC.

            The Table of Contents, Cross-Reference Table and Headings of the
Articles and Sections of this Indenture have been inserted for convenience of
reference only, are not to be considered a part of this Indenture and shall in
no way modify or restrict any of the terms or provisions hereof.

                                   ARTICLE 12
                                 NOTE GUARANTEES

SECTION 12.01.    GUARANTEE.

            Subject to this Article 12, each of the Guarantors hereby, jointly
and severally, unconditionally guarantees to each Holder of a Note authenticated
and delivered by the Trustee and to the Trustee and its successors and assigns,
irrespective of the validity and enforceability of this Indenture, the Notes or
the obligations of the Company hereunder or thereunder, that: (a) the principal
of and interest on the Notes will be promptly paid in full when due, whether at
maturity, by acceleration, redemption or otherwise, and interest on the overdue
principal of and interest on the Notes, if any, if lawful, and all other
obligations of the Company to the Holders or the Trustee hereunder or thereunder
will be promptly paid in full or performed, all in accordance with the terms
hereof and thereof; and (b) in case of any extension of time of payment or
renewal of any Notes or any of such other obligations, that same will be
promptly paid in full when due or performed in accordance with the terms of the
extension or renewal, whether at stated maturity, by acceleration or otherwise.
Failing payment when due of any amount so guaranteed or any performance so
guaranteed for whatever reason, the Guarantors shall be jointly and severally
obligated to pay the same immediately. Each Guarantor agrees that this is a
guarantee of payment and not a guarantee of collection.

            The Guarantors hereby agree that their obligations hereunder shall
be unconditional, irrespective of the validity, regularity or enforceability of
the Notes or this Indenture, the absence of any action to enforce the same, any
waiver or consent by any Holder of the Notes with respect to any provisions
hereof or thereof, the recovery of any judgment against the Company, any action
to enforce the same or any other circumstance which might otherwise constitute a
legal or equitable discharge or defense of a guarantor. Each Guarantor hereby
waives diligence, presentment, demand of payment, filing of claims with a court
in the event of insolvency or bankruptcy of the Company, any right to require a
proceeding first against the Company, protest, notice and all demands whatsoever
and covenant that this Note Guarantee shall not be discharged except by complete
performance of the obligations contained in the Notes and this Indenture.

            If any Holder or the Trustee is required by any court or otherwise
to return to the Company, the Guarantors or any custodian, trustee, liquidator
or other similar official acting in relation to either the Company or the
Guarantors, any amount paid by either to the Trustee or such Holder, this Note
Guarantee, to the extent theretofore discharged, shall be reinstated in full
force and effect.

            Each Guarantor agrees that it shall not be entitled to any right of
subrogation in relation to the Holders in respect of any obligations guaranteed
hereby until payment in full of all obligations guaranteed hereby. Each
Guarantor further agrees that, as between the Guarantors, on the one hand, and
the Holders and the Trustee, on the other hand, (x) the maturity of the
obligations guaranteed hereby may be accelerated as provided in Article 6 hereof
for the purposes of this Note Guarantee, notwithstanding any

                                      70

<PAGE>

stay, injunction or other prohibition preventing such acceleration in respect
of the obligations guaranteed hereby, and (y) in the event of any declaration
of acceleration of such obligations as provided in Article 6 hereof, such
obligations (whether or not due and payable) shall forthwith become due and
payable by the Guarantors for the purpose of this Note Guarantee. The
Guarantors shall have the right to seek contribution from any non-paying
Guarantor so long as the exercise of such right does not impair the rights of
the Holders under the Guarantee.

SECTION 12.02.    LIMITATION ON GUARANTOR LIABILITY.

            Each Guarantor, and by its acceptance of Notes, each Holder, hereby
confirms that it is the intention of all such parties that the Note Guarantee of
such Guarantor not constitute a fraudulent transfer or conveyance for purposes
of Bankruptcy Law, the Uniform Fraudulent Conveyance Act, the Uniform Fraudulent
Transfer Act or any similar federal or state law to the extent applicable to any
Note Guarantee. To effectuate the foregoing intention, the Trustee, the Holders
and the Guarantors hereby irrevocably agree that the obligations of such
Guarantor will, after giving effect to such maximum amount and all other
contingent and fixed liabilities of such Guarantor that are relevant under such
laws, and after giving effect to any collections from, rights to receive
contribution from or payments made by or on behalf of any other Guarantor in
respect of the obligations of such other Guarantor under this Article 12, result
in the obligations of such Guarantor under its Note Guarantee not constituting a
fraudulent transfer or conveyance.

SECTION 12.03.    EXECUTION AND DELIVERY OF NOTE GUARANTEE.

            To evidence its Note Guarantee set forth in Section 12.01, each
Guarantor hereby agrees that a notation of such Note Guarantee substantially in
the form included in Exhibit D shall be endorsed by an Officer of such Guarantor
on each Note authenticated and delivered by the Trustee and that this Indenture
shall be executed on behalf of such Guarantor by its President or one of its
Vice Presidents.

            Each Guarantor hereby agrees that its Note Guarantee set forth in
Section 12.01 shall remain in full force and effect notwithstanding any failure
to endorse on each Note a notation of such Note Guarantee.

            If an Officer whose signature is on this Indenture or on the Note
Guarantee no longer holds that office at the time the Trustee authenticates the
Note on which a Note Guarantee is endorsed, the Note Guarantee shall be valid
nevertheless.

            The delivery of any Note by the Trustee, after the authentication
thereof hereunder, shall constitute due delivery of the Note Guarantee set forth
in this Indenture on behalf of the Guarantors.

            If required by Section 4.20 hereof, the Company shall cause such
Subsidiaries to execute supplemental indentures to this Indenture and Note
Guarantees in accordance with Section 4.20 hereof and this Article 12, to the
extent applicable.

SECTION 12.04.    GUARANTORS MAY CONSOLIDATE, ETC., ON CERTAIN TERMS.

            Except as otherwise provided in Section 12.05, no Guarantor may
consolidate with or merge with or into (whether or not such Guarantor is the
surviving Person) another Person whether or not affiliated with such Guarantor
unless:

                                      71

<PAGE>

            (a) subject to Section 12.05 hereof, the Person formed by or
surviving any such consolidation or merger (if other than a Guarantor or the
Company) unconditionally assumes all the obligations of such Guarantor, pursuant
to a supplemental indenture in form and substance reasonably satisfactory to the
Trustee, under the Notes, the Indenture and the Note Guarantee on the terms set
forth herein or therein and immediately after giving effect to such transaction,
no Default or Event of Default exists; or

            (b) the Note Guarantee of such Guarantor is to be released pursuant
to Section 12.05.

            In case of any such consolidation, merger, sale or conveyance and
upon the assumption by the successor Person, by supplemental indenture, executed
and delivered to the Trustee and satisfactory in form to the Trustee, of the
Note Guarantee endorsed upon the Notes and the due and punctual performance of
all of the covenants and conditions of this Indenture to be performed by the
Guarantor, such successor Person shall succeed to and be substituted for the
Guarantor with the same effect as if it had been named herein as a Guarantor.
Such successor Person thereupon may cause to be signed any or all of the Note
Guarantees to be endorsed upon all of the Notes issuable hereunder which
theretofore shall not have been signed by the Company and delivered to the
Trustee. All the Note Guarantees so issued shall in all respects have the same
legal rank and benefit under this Indenture as the Note Guarantees theretofore
and thereafter issued in accordance with the terms of this Indenture as though
all of such Note Guarantees had been issued at the date of the execution hereof.

            Except as set forth in Articles 4 and 5 hereof, and notwithstanding
clauses (a) and (b) above, nothing contained in this Indenture or in any of the
Notes shall prevent any consolidation or merger of a Guarantor with or into the
Company or another Guarantor, or shall prevent any sale or conveyance of the
property of a Guarantor as an entirety or substantially as an entirety to the
Company or another Guarantor.

SECTION 12.05.    RELEASES FOLLOWING SALE OF ASSETS.

            In the event of a sale or other disposition of all of the assets of
any Guarantor, by way of merger, consolidation or otherwise, or a sale or other
disposition of all to the capital stock of any Guarantor, in each case to a
Person that is not (either before or after giving effect to such transactions) a
Restricted Subsidiary of the Company, then such Guarantor (in the event of a
sale or other disposition, by way of merger, consolidation or otherwise, of all
of the capital stock of such Guarantor) or the corporation acquiring the
property (in the event of a sale or other disposition of all or substantially
all of the assets of such Guarantor) will be released and relieved of any
obligations under its Note Guarantee, if immediately after giving effect to such
sale, there is no Default or Event of Default that has occurred and is
continuing. If such Guarantor is not released and relieved of its obligations
under its Note Guarantee because a Default or Event of Default has occurred and
is continuing immediately after giving effect to such sale, such Guarantor will
be released and relieved of such obligations as soon thereafter as all Defaults
and Events of Default have been waived or cured. If the Company designates any
Restricted Subsidiary that is a Guarantor or an Unrestricted Subsidiary in
accordance with the provisions of Section 4.19 hereof, such Restricted
Subsidiary will be released and relieved of any obligations under its Note
Guarantee. The Trustee shall execute any documents reasonably required in order
to evidence the release of any Guarantor, pursuant to the provisions of this
Section 12.05, from its obligations under its Note Guarantee.

                                      72

<PAGE>

            Any Guarantor not released from its obligations under its Note
Guarantee shall remain liable for the full amount of principal of and interest
on the Notes and for the other obligations of any Guarantor under this Indenture
as provided in this Article 12.

                         [Signatures on following page]

                                      73

<PAGE>

                                   SIGNATURES

Dated as of March 6, 2001

         KEY ENERGY SERVICES, INC.

         By      /s/ Jack D. Loftis, Jr.
              -----------------------------------------
              Name:  Jack D. Loftis, Jr.
              Title: Senior Vice President, General Counsel and Secretary

         THE CHASE MANHATTAN BANK,
              AS TRUSTEE

         By      /s/ John G. Jones
              -----------------------------------------
              Name:  John G. Jones
              Title: Vice President

         YALE E. KEY, INC., KEY ENERGY DRILLING, INC., WELLTECH EASTERN, INC.,
         ODESSA EXPLORATION INCORPORATED, KALKASKA OILFIELD SERVICES, INC.,
         WELL-CO OIL SERVICE, INC., PATRICK WELL SERVICE, INC., RAM OIL WELL
         SERVICE, INC., ROWLAND TRUCKING CO., INC., LANDMARK FISHING & RENTAL,
         INC., DUNBAR WELL SERVICE, INC., FRONTIER WELL SERVICE, INC., KEY ROCKY
         MOUNTAIN, INC., KEY FOUR CORNERS, INC., JETER SERVICE CO., JETER WELL
         SERVICE, INC., JETER TRANSPORTATION, INC., INDUSTRIAL OILFIELD SUPPLY,
         INC., BROOKS WELL SERVICING, INC., UPDIKE BROTHERS, INC., J.W. GIBSON
         WELL SERVICE COMPANY, KEY ENERGY SERVICES--SOUTH TEXAS, INC., KEY
         ENERGY SERVICES--CALIFORNIA, INC., WATSON OILFIELD SERVICE & SUPPLY,
         INC., WELLTECH MID-CONTINENT, INC., DAWSON PRODUCTION MANAGEMENT, INC.,
         DAWSON PRODUCTION TAYLOR, INC., DAWSON PRODUCTION ACQUISITION CORP.,

         By      /s/ Jack D. Loftis, Jr.
              -----------------------------------------
              Name:  Jack D. Loftis, Jr.
              Title: Vice President

         DAWSON PRODUCTION PARTNERS, L.P.
         BY DAWSON PRODUCTION MANAGEMENT INC., ITS SOLE GENERAL PARTNER

                                     S-1

<PAGE>

         By      /s/ Jack D. Loftis, Jr.
              -----------------------------------------
              Name:  Jack D. Loftis, Jr.
              Title: Vice President

                                     S-2

<PAGE>

                                                                       EXHIBIT A

                                 [Face of Note]
================================================================================

                                                         CUSIP/CINS ____________

               8 3/8% [Series A] [Series B] Senior Notes due 2008

No. ___                                                            $____________

                             KEY ENERGY SERVICES, INC.

promises to pay to
                   -------------------------------------------------------------

or registered assigns,

the principal sum of
                     -----------------------------------------------------------

Dollars on _____________, 2008.

Interest Payment Dates:  ____________ and ____________

Record Dates:  ____________ and ____________

Dated:  _______________, ____

                                     A-1

<PAGE>

                                            KEY ENERGY SERVICES, INC.

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

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

This is one of the Notes referred to
in the within-mentioned Indenture:

Dated: _______ __, _____

THE CHASE MANHATTAN BANK
  as Trustee

By:
   ------------------------------------
         Authorized Signatory

                                      A-2

<PAGE>

                                 [Back of Note]
================================================================================

               8 3/8% [Series A] [Series B] Senior Notes due 2008

[INSERT THE GLOBAL NOTE LEGEND, IF APPLICABLE PURSUANT TO THE PROVISIONS OF THE
INDENTURE]

[INSERT THE PRIVATE PLACEMENT LEGEND, IF APPLICABLE PURSUANT TO THE PROVISIONS
OF THE INDENTURE]

[INSERT THE UNIT LEGEND, IF APPLICABLE PURSUANT TO THE PROVISIONS OF THE
INDENTURE]

[INSERT THE REGULATION S LEGEND, IF APPLICABLE PURSUANT TO THE PROVISIONS OF THE
INDENTURE]

            Capitalized terms used herein shall have the meanings assigned to
them in the Indenture referred to below unless otherwise indicated.

            1. INTEREST. Key Energy Services, Inc., a Maryland corporation (the
"Company"), promises to pay interest on the principal amount of this Note at
8 3/8% per annum from March 6, 2001 until maturity and shall pay the Liquidated
Damages, if any, payable pursuant to Section 5 of the Registration Rights
Agreement referred to below. The Company will pay interest and Liquidated
Damages, if any, semi-annually in arrears on March 1 and September 1 of each
year, or if any such day is not a Business Day, on the next succeeding Business
Day (each an "Interest Payment Date"). Interest on the Notes will accrue from
the most recent date to which interest has been paid or, if no interest has been
paid, from the date of issuance; PROVIDED that if there is no existing Default
in the payment of interest, and if this Note is authenticated between a record
date referred to on the face hereof and the next succeeding Interest Payment
Date, interest shall accrue from such next succeeding Interest Payment Date;
PROVIDED, FURTHER, that the first Interest Payment Date shall be September 1,
2001. The Company shall pay interest (including post-petition interest in any
proceeding under any Bankruptcy Law) on overdue principal and premium, if any,
from time to time on demand at a rate that is 1% per annum in excess of the rate
then in effect, to the extent lawful; it shall pay interest (including
post-petition interest in any proceeding under any Bankruptcy Law) on overdue
installments of interest and Liquidated Damages (without regard to any
applicable grace periods), if any, from time to time on demand at the same rate
to the extent lawful. Interest will be computed on the basis of a 360-day year
of twelve 30-day months.

            2. METHOD OF PAYMENT. The Company will pay interest on the Notes
(except defaulted interest) and Liquidated Damages, if any, to the Persons who
are registered Holders of Notes at the close of business on the January 1 or
July 1 next preceding the Interest Payment Date, even if such Notes are canceled
after such record date and on or before such Interest Payment Date, except as
provided in Section 2.12 of the Indenture with respect to defaulted interest.
The Notes will be payable as to principal, premium and Liquidated Damages, if
any, and interest at the office or agency of the Company maintained for such
purpose within or without the City and State of New York, or, at the option of
the Company, payment of interest and Liquidated Damages may be made by check
mailed to the Holders at their addresses set forth in the register of Holders,
and provided that payment by wire transfer of immediately available funds will
be required with respect to principal of and interest, premium and Liquidated
Damages, if any, on, all Global Notes and all other Notes the Holders of which
shall have provided wire transfer instructions to the Company or the Paying
Agent at least ten Business Days prior to the applicable payment date. Such
payment shall be in such coin or currency of the United States of America as at
the time of payment is legal tender for payment of public and private debts.

                                     A-3

<PAGE>

            3. PAYING AGENT AND REGISTRAR. Initially, The Chase Manhattan Bank,
the Trustee under the Indenture, will act as Paying Agent and Registrar. The
Company may change any Paying Agent or Registrar without notice to any Holder.
The Company or any of its Subsidiaries may act in any such capacity.

            4. INDENTURE. The Company issued the Notes under an Indenture
dated as of March 6, 2001 ("Indenture") between the Company and the Trustee.
The terms of the Notes include those stated in the Indenture and those made
part of the Indenture by reference to the Trust Indenture Act of 1939, as
amended (15 U.S. Code Sections 77aaa-77bbbb). The Notes are subject to all
such terms, and Holders are referred to the Indenture and such Act for a
statement of such terms. To the extent any provision of this Note conflicts
with the express provisions of the Indenture, the provisions of the Indenture
shall govern and be controlling. The Notes are obligations of the Company
limited to $175.0 million in aggregate outstanding principal amount.

            5.   OPTIONAL REDEMPTION.

            (a) Except as set forth in subparagraph (b) of this Paragraph 5, the
Company shall not have the option to redeem the Notes prior to March 1, 2005.
Thereafter, the Company shall have the option to redeem the Notes, in whole or
in part, upon not less than 30 nor more than 60 days' notice, at the redemption
prices (expressed as percentages of principal amount) set forth below plus
accrued and unpaid interest thereon to the applicable redemption date, if
redeemed during the twelve-month period beginning on [insert date] of the years
indicated below:

<TABLE>
<CAPTION>

        Year                                                           Percentage
        ----                                                           ----------
        <S>                                                            <C>
        2005.......................................................     104.188%
        2006.......................................................     102.094%
        2007 and thereafter........................................     100.000%

</TABLE>

            (b) Notwithstanding the provisions of subparagraph (a) of this
Paragraph 5, at any time prior to March 1, 2004, the Company may on any one or
more occasions redeem up to 35% of the aggregate principal amount of Notes
totally issued under this Indenture at a redemption price of 108.375% of the
principal amount thereof; plus accrued and unpaid interest and Liquidated
Damages, if any, to the redemption date, with the net cash proceeds of one or
more Equity Offerings; PROVIDED that at least 65% of the aggregate principal
amount of the Notes totally issued remains outstanding immediately after such
redemption (excluding Notes held by the Company and its Subsidiaries); and
that the redemption must occur within 45 days of the date of the closing of
such Equity Offering.

            6.   MANDATORY REDEMPTION.

            The Company shall not be required to make mandatory redemptions with
respect to the Notes.

            7.   REPURCHASE AT OPTION OF HOLDER.

            (a) If there is a Change of Control, the Company shall be required
to make an offer (a "Change of Control Offer") to repurchase all or any part
(equal to $1,000 or an integral multiple thereof) of each Holder's Notes at a
purchase price equal to 101% of the aggregate principal amount thereof plus
accrued and unpaid interest thereon, if any, to the date of purchase (the
"Change of Control Payment"). Within 10 business days following any Change of
Control, the Company shall mail a notice to each Holder setting forth the
procedures governing the Change of Control Offer as required by the Indenture.

                                     A-4

<PAGE>

            (b) If the Company or a Subsidiary consummates any Asset Sale, under
certain circumstances as provided in the Indenture, the Company shall commence
an offer to all Holders of Notes (as "Asset Sale Offer") pursuant to Section
3.09 of the Indenture to purchase the maximum principal amount of Notes that may
be purchased out of the Excess Proceeds at an offer price in cash in an amount
equal to 100% of the principal amount thereof plus accrued and unpaid interest
and Liquidated Damages thereon, if any, to the date of purchase, in accordance
with the procedures set forth in the Indenture. To the extent that the amount of
the Excess Proceeds exceeds the aggregate amount of Notes tendered pursuant to
an Asset Sale Offer, the Company (or such Subsidiary) may use such excess for
general corporate purposes. If the aggregate principal amount of Notes
surrendered by Holders thereof exceeds the amount of Excess Proceeds, the
Trustee shall select the Notes to be purchased on a PRO RATA basis. Holders of
Notes that are the subject of an offer to purchase will receive an Asset Sale
Offer from the Company prior to any related purchase date and may elect to have
such Notes purchased by completing the form entitled "Option of Holder to Elect
Purchase" on the reverse of the Notes.

            8. NOTICE OF REDEMPTION. Notice of redemption will be mailed at
least 30 days but not more than 60 days before the redemption date to each
Holder whose Notes are to be redeemed at its registered address. Notes in
denominations larger than $1,000 may be redeemed in part but only in whole
multiples of $1,000, unless all of the Notes held by a Holder are to be
redeemed. On and after the redemption date interest ceases to accrue on Notes or
portions thereof called for redemption.

            9. DENOMINATIONS, TRANSFER, EXCHANGE. The Notes are in registered
form without coupons in denominations of $1,000 and integral multiples of
$1,000. The transfer of Notes may be registered and Notes may be exchanged as
provided in the Indenture. The Registrar and the Trustee may require a Holder,
among other things, to furnish appropriate endorsements and transfer documents
and the Company may require a Holder to pay any taxes and fees required by law
or permitted by the Indenture. The Company need not exchange or register the
transfer of any Note or portion of a Note selected for redemption, except for
the unredeemed portion of any Note being redeemed in part. Also, the Company
need not exchange or register the transfer of any Notes for a period of 15 days
before a selection of Notes to be redeemed or during the period between a record
date and the corresponding Interest Payment Date.

            10. PERSONS DEEMED OWNERS. The registered Holder of a Note may be
treated as its owner for all purposes.

            11. AMENDMENT, SUPPLEMENT AND WAIVER. Subject to certain exceptions,
the Indenture and the Notes may be amended or supplemented with the consent of
the Holders of at least a majority in principal amount of the then outstanding
Notes voting as a single class, and any existing default or compliance with any
provision of the Indenture or the Notes may be waived with the consent of the
Holders of a majority in principal amount of the then outstanding Notes voting
as a single class. Without the consent of any Holder of a Note, the Indenture or
the Notes may be amended or supplemented to cure any ambiguity, defect or
inconsistency, to provide for uncertificated Notes in addition to or in place of
certificated Notes, to provide for the assumption of the Company's or
Guarantor's obligations to Holders of the Notes in case of a merger or
consolidation, to make any change that would provide any additional rights or
benefits to the Holders of the Notes or that does not adversely affect the legal
rights under the Indenture of any such Holder, to comply with the requirements
of the SEC in order to effect or maintain the qualification of the Indenture
under the Trust Indenture Act, or to allow any Guarantor to execute a
supplemental indenture to the Indenture and/or a Note Guarantee with respect to
the Notes.

                                      A-5

<PAGE>

            12. DEFAULTS AND REMEDIES. Events of Default include: (i) default
for 30 days in the payment when due of interest or Liquidated Damages on the
Notes whether or not prohibited by Article 10 of the Indenture; (ii) default in
payment when due of principal of or premium, if any, on the Notes (including in
connection with an offer to purchase) whether or not prohibited by Article 10 of
the Indenture , (iii) failure by the Company to comply with Section 4.10 or
Section 5.01 of the Indenture and such failure shall have continued for 15 days,
after notice from the Company or any holder of Notes, or failure by the Company
or any of its Subsidiaries to comply with the provisions of Section 4.07 and
Section 4.09 of the Indenture and such failure shall have continued for 30 days
after notice from the Company or any holder of Notes; (iv) failure by the
Company for 60 days after notice to the Company by the Trustee or the Holders of
at least 25% in aggregate principal amount of the Notes then outstanding to
comply with certain other agreements in the Indenture and the Notes; (v) payment
default under certain other agreements relating to Indebtedness of the Company
or default under certain other agreements relating to the Indenture which
default results in the acceleration of such Indebtedness prior to its express
maturity; (vi) certain final judgments for the payment of money that remain
undischarged for a period of 60 days; (vii) certain events of bankruptcy or
insolvency with respect to the Company or any of its Restricted Subsidiaries
that are Significant Subsidiaries; and (viii) except as permitted by the
Indenture, any Note Guarantee shall be held in any judicial proceeding to be
unenforceable or invalid or shall cease for any reason to be in full force and
effect or any Guarantor or any Person acting on its behalf shall deny or
disaffirm its obligations under such Guarantor's Note Guarantee. If any Event of
Default occurs and is continuing, the Trustee or the Holders of at least 25% in
aggregate principal amount of the then outstanding Notes may declare all the
Notes to be due and payable. Notwithstanding the foregoing, in the case of an
Event of Default arising from certain events of bankruptcy or insolvency, all
outstanding Notes will become due and payable without further action or notice.
Holders may not enforce the Indenture or the Notes except as provided in the
Indenture. Subject to certain limitations, Holders of a majority in aggregate
principal amount of the then outstanding Notes may direct the Trustee in its
exercise of any trust or power. The Trustee may withhold from Holders of the
Notes notice of any continuing Default or Event of Default (except a Default or
Event of Default relating to the payment of principal or interest) if it
determines that withholding notice is in their interest. The Holders of a
majority in aggregate principal amount of the Notes then outstanding by notice
to the Trustee may on behalf of the Holders of all of the Notes waive any
existing Default or Event of Default and its consequences under the Indenture
except a continuing Default or Event of Default in the payment of interest on,
or the principal of, the Notes. The Company is required to deliver to the
Trustee annually a statement regarding compliance with the Indenture, and the
Company is required upon becoming aware of any Default or Event of Default, to
deliver to the Trustee a statement specifying such Default or Event of Default.

            13. TRUSTEE DEALINGS WITH COMPANY. The Trustee, in its individual or
any other capacity, may make loans to, accept deposits from, and perform
services for the Company or its Affiliates, and may otherwise deal with the
Company or its Affiliates, as if it were not the Trustee.

            14. NO RECOURSE AGAINST OTHERS. A director, officer, employee,
incorporator or stockholder, of the Company, as such, shall not have any
liability for any obligations of the Company under the Notes or the Indenture or
for any claim based on, in respect of, or by reason of, such obligations or
their creation. Each Holder by accepting a Note waives and releases all such
liability. The waiver and release are part of the consideration for the issuance
of the Notes.

            15. AUTHENTICATION. This Note shall not be valid until authenticated
by the manual signature of the Trustee or an authenticating agent.

                                     A-6

<PAGE>

            16. ABBREVIATIONS. Customary abbreviations may be used in the name
of a Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT (=
tenants by the entireties), JT TEN (= joint tenants with right of survivorship
and not as tenants in common), CUST (= Custodian), and U/G/M/A (= Uniform Gifts
to Minors Act).

            17. ADDITIONAL RIGHTS OF HOLDERS OF RESTRICTED GLOBAL NOTES AND
RESTRICTED DEFINITIVE NOTES. In addition to the rights provided to Holders of
Notes under the Indenture, Holders of Restricted Global Notes and Restricted
Definitive Notes shall have all the rights set forth in the A/B Exchange
Registration Rights Agreement dated as of March 6, 2001, between the Company and
the parties named on the signature pages thereof (the "Registration Rights
Agreement").

            18. CUSIP NUMBERS. Pursuant to a recommendation promulgated by the
Committee on Uniform Security Identification Procedures, the Company has caused
CUSIP numbers to be printed on the Notes and the Trustee may use CUSIP numbers
in notices of redemption as a convenience to Holders. No representation is made
as to the accuracy of such numbers either as printed on the Notes or as
contained in any notice of redemption and reliance may be placed only on the
other identification numbers placed thereon.

            The Company will furnish to any Holder upon written request and
without charge a copy of the Indenture and/or the Registration Rights Agreement.
Requests may be made to:

Key Energy Services, Inc.
Two Tower Center
20th Floor
East Brunswick, NJ  08816
Attention:  General Counsel

                                     A-7

<PAGE>

                                 ASSIGNMENT FORM

           To assign this Note, fill in the form below:

(I) or (we) assign and transfer this Note to:
                                              ----------------------------------
                                              (Insert assignee's legal name)

--------------------------------------------------------------------------------
                  (Insert assignee's soc. sec. or tax I.D. no.)

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
              (Print or type assignee's name, address and zip code)

and irrevocably appoint
                        --------------------------------------------------------
to transfer this Note on the books of the Company. The agent may substitute
another to act for him.

Date:
      --------------------------

                   Your Signature:
                                  ----------------------------------------------
                    (Sign exactly as your name appears on the face of this Note)

Signature Guarantee*:
                      ------------------------------------

* Participant in a recognized Signature Guarantee Medallion Program (or other
signature guarantor acceptable to the Trustee).

                                      A-8

<PAGE>

                       OPTION OF HOLDER TO ELECT PURCHASE

           If you want to elect to have this Note purchased by the Company
pursuant to Section 4.10 or 4.15 of the Indenture, check the appropriate box
below:

                  / / Section 4.10          / / Section 4.15

           If you want to elect to have only part of the Note purchased by the
Company pursuant to Section 4.10 or Section 4.15 of the Indenture, state the
amount you elect to have purchased:

                                   $
                                    --------------------------

Date:
      --------------------------

                   Your Signature:
                                  ----------------------------------------------
                    (Sign exactly as your name appears on the face of this Note)

                   Tax Identification No.:
                                          --------------------------------------

Signature Guarantee*:
                      ------------------------------------

* Participant in a recognized Signature Guarantee Medallion Program (or other
signature guarantor acceptable to the Trustee).

                                     A-9

<PAGE>

              SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL NOTE

            The following exchanges of a part of this Global Note for an
interest in another Global Note or for a Definitive Note, or exchanges of a part
of another Global Note or Definitive Note for an interest in this Global Note,
have been made:

<TABLE>
<CAPTION>

                                                                        Principal Amount of       Signature of
                        Amount of decrease in  Amount of increase in     this Global Note     authorized Signatory
                         Principal Amount of    Principal Amount of   following such decrease          of
   Date of Exchange       this Global Note        this Global Note         (or increase)         Trustee or Note
   ----------------       ----------------        ----------------         -------------            Custodian
                                                                                                    ---------
   <S>                  <C>                    <C>                    <C>                     <C>

</TABLE>

                                    A-10

<PAGE>

                                                                       EXHIBIT B

                         FORM OF CERTIFICATE OF TRANSFER

Key Energy Services, Inc.
Two Tower Center
20th Floor
East Brunswick, NJ 08816

[REGISTRAR ADDRESS BLOCK]

            Re:  8 3/8% SENIOR NOTES DUE 2008

            Reference is hereby made to the Indenture, dated as of March 6, 2001
(the "INDENTURE"), between Key Energy Services, Inc., as issuer (the "COMPANY"),
and The Chase Manhattan Bank, as trustee. Capitalized terms used but not defined
herein shall have the meanings given to them in the Indenture.

            ___________________, (the "TRANSFEROR") owns and proposes to
transfer the Note[s] or interest in such Note[s] specified in Annex A hereto, in
the principal amount of $___________ in such Note[s] or interests (the
"TRANSFER"), to ___________________________ (the "TRANSFEREE"), as further
specified in Annex A hereto. In connection with the Transfer, the Transferor
hereby certifies that:

                           [CHECK ALL THAT APPLY]

            1. / / CHECK IF TRANSFEREE WILL TAKE DELIVERY OF A BENEFICIAL
INTEREST IN THE 144A GLOBAL NOTE OR A DEFINITIVE NOTE PURSUANT TO RULE 144A. The
Transfer is being effected pursuant to and in accordance with Rule 144A under
the United States Securities Act of 1933, as amended (the "Securities Act"),
and, accordingly, the Transferor hereby further certifies that the beneficial
interest or Definitive Note is being transferred to a Person that the Transferor
reasonably believed and believes is purchasing the beneficial interest or
Definitive Note for its own account, or for one or more accounts with respect to
which such Person exercises sole investment discretion, and such Person and each
such account is a "qualified institutional buyer" within the meaning of Rule
144A in a transaction meeting the requirements of Rule 144A and such Transfer is
in compliance with any applicable blue sky securities laws of any state of the
United States. Upon consummation of the proposed Transfer in accordance with the
terms of the Indenture, the transferred beneficial interest or Definitive Note
will be subject to the restrictions on transfer enumerated in the Private
Placement Legend printed on the 144A Global Note and/or the Definitive Note and
in the Indenture and the Securities Act.

            2. / / CHECK IF TRANSFEREE WILL TAKE DELIVERY OF A BENEFICIAL
INTEREST IN THE REGULATION S GLOBAL NOTE OR A DEFINITIVE NOTE PURSUANT TO
REGULATION S. The Transfer is being effected pursuant to and in accordance with
Rule 903 or Rule 904 under the Securities Act and, accordingly, the Transferor
hereby further certifies that (i) the Transfer is not being made to a person in
the United States and (x) at the time the buy order was originated, the
Transferee was outside the United States or such Transferor and any Person
acting on its behalf reasonably believed and believes that the Transferee was
outside the United States or (y) the transaction was executed in, on or through
the facilities of a designated offshore securities market and neither such
Transferor nor any Person acting on its behalf knows that the transaction was
prearranged with a buyer in the United States, (ii) no directed selling efforts
have been made in contravention of the requirements of Rule 903(b) or Rule
904(b) of Regulation S under the Securities Act [and/,] (iii) the transaction is
not part of a plan or scheme to evade the registration

                                     B-1

<PAGE>

requirements of the Securities Act. Upon consummation of the proposed transfer
in accordance with the terms of the Indenture, the transferred beneficial
interest or Definitive Note will be subject to the restrictions on Transfer
enumerated in the Private Placement Legend printed on the Regulation S Global
Note and/or the Definitive Note and in the Indenture and the Securities Act.

            3. / / CHECK AND COMPLETE IF TRANSFEREE WILL TAKE DELIVERY OF A
BENEFICIAL INTEREST IN A DEFINITIVE NOTE PURSUANT TO ANY PROVISION OF THE
SECURITIES ACT OTHER THAN RULE 144A OR REGULATION S. The Transfer is being
effected in compliance with the transfer restrictions applicable to beneficial
interests in Restricted Global Notes and Restricted Definitive Notes and
pursuant to and in accordance with the Securities Act and any applicable blue
sky securities laws of any state of the United States, and accordingly the
Transferor hereby further certifies that (check one):

               (a) / / such Transfer is being effected pursuant to and in
accordance with Rule 144 under the Securities Act;

                                       or

               (b) / / such Transfer is being effected to the Company or a
subsidiary thereof;

                                       or

               (c) / / such Transfer is being effected pursuant to an
effective registration statement under the Securities Act and in compliance
with the prospectus delivery requirements of the Securities Act;

            4. / / CHECK IF TRANSFEREE WILL TAKE DELIVERY OF A BENEFICIAL
INTEREST IN AN UNRESTRICTED GLOBAL NOTE OR OF AN UNRESTRICTED DEFINITIVE NOTE.

            (a) / / CHECK IF TRANSFER IS PURSUANT TO RULE 144. (i) The Transfer
is being effected pursuant to and in accordance with Rule 144 under the
Securities Act and in compliance with the transfer restrictions contained in the
Indenture and any applicable blue sky securities laws of any state of the United
States and (ii) the restrictions on transfer contained in the Indenture and the
Private Placement Legend are not required in order to maintain compliance with
the Securities Act. Upon consummation of the proposed Transfer in accordance
with the terms of the Indenture, the transferred beneficial interest or
Definitive Note will no longer be subject to the restrictions on transfer
enumerated in the Private Placement Legend printed on the Restricted Global
Notes, on Restricted Definitive Notes and in the Indenture.

            (b) / / CHECK IF TRANSFER IS PURSUANT TO REGULATION S. (i) The
Transfer is being effected pursuant to and in accordance with Rule 903 or Rule
904 under the Securities Act and in compliance with the transfer restrictions
contained in the Indenture and any applicable blue sky securities laws of any
state of the United States and (ii) the restrictions on transfer contained in
the Indenture and the Private Placement Legend are not required in order to
maintain compliance with the Securities Act. Upon consummation of the proposed
Transfer in accordance with the terms of the Indenture, the transferred
beneficial interest or Definitive Note will no longer be subject to the
restrictions on transfer enumerated in the Private Placement Legend printed on
the Restricted Global Notes, on Restricted Definitive Notes and in the
Indenture.

                                     B-2

<PAGE>

            (c) / / CHECK IF TRANSFER IS PURSUANT TO OTHER EXEMPTION. (i) The
Transfer is being effected pursuant to and in compliance with an exemption
from the registration requirements of the Securities Act other than Rule 144,
Rule 903 or Rule 904 and in compliance with the transfer restrictions
contained in the Indenture and any applicable blue sky securities laws of any
State of the United States and (ii) the restrictions on transfer contained in
the Indenture and the Private Placement Legend are not required in order to
maintain compliance with the Securities Act. Upon consummation of the proposed
Transfer in accordance with the terms of the Indenture, the transferred
beneficial interest or Definitive Note will no longer be subject to the
restrictions on transfer enumerated in the Private Placement Legend printed on
the Restricted Global Notes, on the Restricted Definitive Notes and in the
Indenture.

            This certificate and the statements contained herein are made for
your benefit and the benefit of the Company.

                                    --------------------------------------------
                                           [Insert Name of Transferor]

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

                                     B-3

<PAGE>

                       ANNEX A TO CERTIFICATE OF TRANSFER

      1.   The Transferor owns and proposes to transfer the following:

                            [CHECK ONE OF (a) OR (b)]

                 (a)  / /   a beneficial interest in the:

                      (i)   / / 144A Global Note (CUSIP _____________), or

                      (ii)  / / Regulation S Global Note (CUSIP ___________), or

                 (b)  / / a Restricted Definitive Note.

      2.   After the Transfer the Transferee will hold:

                                   [CHECK ONE]

                 (a)  / /   a beneficial interest in the:

                      (i)   / / 144A Global Note (CUSIP _____________), or

                      (ii)  / / Regulation S Global Note (CUSIP ___________), or

                      (iii) / /Unrestricted Global Note (CUSIP ___________), or

                 (b)  / /   a Restricted Definitive Note; or

                 (c)  / /   an Unrestricted Definitive Note,

                 in accordance with the terms of the Indenture.

                                     B-4

<PAGE>

                                                                       EXHIBIT C

                         FORM OF CERTIFICATE OF EXCHANGE

Key Energy Services, Inc.
Two Tower Center
20th Floor
East Brunswick, NJ 08816

[REGISTRAR ADDRESS BLOCK]

            Re:  8 3/8% SENIOR NOTES DUE 2008

                              (CUSIP ____________)

            Reference is hereby made to the Indenture, dated as of March 6, 2001
(the "INDENTURE"), between Key Energy Services, Inc., as issuer (the "COMPANY"),
and The Chase Manhattan Bank, as trustee. Capitalized terms used but not defined
herein shall have the meanings given to them in the Indenture.

            __________________________ (the "OWNER") owns and proposes to
exchange the Note[s] or interest in such Note[s] specified herein, in the
principal amount of $____________ in such Note[s] or interests (the "EXCHANGE").
In connection with the Exchange, the Owner hereby certifies that:

            1.  EXCHANGE OF RESTRICTED DEFINITIVE NOTES OR BENEFICIAL
INTERESTS IN A RESTRICTED GLOBAL NOTE FOR UNRESTRICTED DEFINITIVE NOTES OR
BENEFICIAL INTERESTS IN AN UNRESTRICTED GLOBAL NOTE

            (a) / / CHECK IF EXCHANGE IS FROM BENEFICIAL INTEREST IN A
RESTRICTED GLOBAL NOTE TO BENEFICIAL INTEREST IN AN UNRESTRICTED GLOBAL NOTE.
In connection with the Exchange of the Owner's beneficial interest in a
Restricted Global Note for a beneficial interest in an Unrestricted Global
Note in an equal principal amount, the Owner hereby certifies (i) the
beneficial interest is being acquired for the Owner's own account without
transfer, (ii) such Exchange has been effected in compliance with the transfer
restrictions applicable to the Global Notes and pursuant to and in accordance
with the United States Securities Act of 1933, as amended (the "SECURITIES
ACT"), (iii) the restrictions on transfer contained in the Indenture and the
Private Placement Legend are not required in order to maintain compliance with
the Securities Act and (iv) the beneficial interest in an Unrestricted Global
Note is being acquired in compliance with any applicable blue sky securities
laws of any state of the United States.

            (b) / / CHECK IF EXCHANGE IS FROM BENEFICIAL INTEREST IN A
RESTRICTED GLOBAL NOTE TO UNRESTRICTED DEFINITIVE NOTE. In connection with the
Exchange of the Owner's beneficial interest in a Restricted Global Note for an
Unrestricted Definitive Note, the Owner hereby certifies (i) the Definitive
Note is being acquired for the Owner's own account without transfer, (ii) such
Exchange has been effected in compliance with the transfer restrictions
applicable to the Restricted Global Notes and pursuant to and in accordance
with the Securities Act, (iii) the restrictions on transfer contained in the
Indenture and the Private Placement Legend are not required in order to
maintain compliance with the Securities Act and (iv) the Definitive Note is
being acquired in compliance with any applicable blue sky securities laws of
any state of the United States.

            (c) / / CHECK IF EXCHANGE IS FROM RESTRICTED DEFINITIVE NOTE TO
BENEFICIAL INTEREST IN AN UNRESTRICTED GLOBAL NOTE. In connection with the
Owner's Exchange of a Restricted Definitive Note for

                                     C-1

<PAGE>

a beneficial interest in an Unrestricted Global Note, the Owner hereby
certifies (i) the beneficial interest is being acquired for the Owner's own
account without transfer, (ii) such Exchange has been effected in compliance
with the transfer restrictions applicable to Restricted Definitive Notes and
pursuant to and in accordance with the Securities Act, (iii) the restrictions
on transfer contained in the Indenture and the Private Placement Legend are
not required in order to maintain compliance with the Securities Act and (iv)
the beneficial interest is being acquired in compliance with any applicable
blue sky securities laws of any state of the United States.

            (d) / / CHECK IF EXCHANGE IS FROM RESTRICTED DEFINITIVE NOTE TO
UNRESTRICTED DEFINITIVE NOTE. In connection with the Owner's Exchange of a
Restricted Definitive Note for an Unrestricted Definitive Note, the Owner
hereby certifies (i) the Unrestricted Definitive Note is being acquired for
the Owner's own account without transfer, (ii) such Exchange has been effected
in compliance with the transfer restrictions applicable to Restricted
Definitive Notes and pursuant to and in accordance with the Securities Act,
(iii) the restrictions on transfer contained in the Indenture and the Private
Placement Legend are not required in order to maintain compliance with the
Securities Act and (iv) the Unrestricted Definitive Note is being acquired in
compliance with any applicable blue sky securities laws of any state of the
United States.

            2.  EXCHANGE OF RESTRICTED DEFINITIVE NOTES OR BENEFICIAL INTERESTS
IN RESTRICTED GLOBAL NOTES FOR RESTRICTED DEFINITIVE NOTES OR BENEFICIAL
INTERESTS IN RESTRICTED GLOBAL NOTES

            (a) / / CHECK IF EXCHANGE IS FROM BENEFICIAL INTEREST IN A
RESTRICTED GLOBAL NOTE TO RESTRICTED DEFINITIVE NOTE. In connection with the
Exchange of the Owner's beneficial interest in a Restricted Global Note for a
Restricted Definitive Note with an equal principal amount, the Owner hereby
certifies that the Restricted Definitive Note is being acquired for the
Owner's own account without transfer. Upon consummation of the proposed
Exchange in accordance with the terms of the Indenture, the Restricted
Definitive Note issued will continue to be subject to the restrictions on
transfer enumerated in the Private Placement Legend printed on the Restricted
Definitive Note and in the Indenture and the Securities Act.

            (b) / / CHECK IF EXCHANGE IS FROM RESTRICTED DEFINITIVE NOTE TO
BENEFICIAL INTEREST IN A RESTRICTED GLOBAL NOTE. In connection with the
Exchange of the Owner's Restricted Definitive Note for a beneficial interest
in the [CHECK ONE] / / 144A Global Note, / / Regulation S Global Note, with an
equal principal amount, the Owner hereby certifies (i) the beneficial interest
is being acquired for the Owner's own account without transfer and (ii) such
Exchange has been effected in compliance with the transfer restrictions
applicable to the Restricted Global Notes and pursuant to and in accordance
with the Securities Act, and in compliance with any applicable blue sky
securities laws of any state of the United States. Upon consummation of the
proposed Exchange in accordance with the terms of the Indenture, the
beneficial interest issued will be subject to the restrictions on transfer
enumerated in the Private Placement Legend printed on the relevant Restricted
Global Note and in the Indenture and the Securities Act.

                                     C-2

<PAGE>

            This certificate and the statements contained herein are made for
your benefit and the benefit of the Company.

                                      ------------------------------------------
                                             [Insert Name of Transferor]

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

                                     C-3

<PAGE>

                                                                       EXHIBIT D

                       [FORM OF NOTATION OF GUARANTEE]

            For value received, each Guarantor (which term includes any
successor Person under the Indenture) has, jointly and severally,
unconditionally guaranteed, to the extent set forth in the Indenture and subject
to the provisions in the Indenture dated as of March 6, 2001 (the "INDENTURE")
among Key Energy Services, Inc., the Guarantors listed on Schedule I thereto and
The Chase Manhattan Bank, as trustee (the "TRUSTEE"), (a) the due and punctual
payment of the principal of, premium, if any, and interest on the Notes (as
defined in the Indenture), whether at maturity, by acceleration, redemption or
otherwise, the due and punctual payment of interest on overdue principal and
premium, and, to the extent permitted by law, interest, and the due and punctual
performance of all other obligations of the Company to the Holders or the
Trustee all in accordance with the terms of the Indenture and (b) in case of any
extension of time of payment or renewal of any Notes or any of such other
obligations, that the same will be promptly paid in full when due or performed
in accordance with the terms of the extension or renewal, whether at stated
maturity, by acceleration or otherwise. The obligations of the Guarantors to the
Holders of Notes and to the Trustee pursuant to the Note Guarantee and the
Indenture are expressly set forth in Article 12 of the Indenture and reference
is hereby made to the Indenture for the precise terms of the Note Guarantee.
Each Holder of a Note, by accepting the same, (a) agrees to and shall be bound
by such provisions, (b) authorizes and directs the Trustee, on behalf of such
Holder, to take such action as may be necessary or appropriate to effectuate the
subordination as provided in the Indenture and (c) appoints the Trustee
attorney-in-fact of such Holder for such purpose; PROVIDED, HOWEVER, that the
Indebtedness evidenced by this Note Guarantee shall cease to be so subordinated
and subject in right of payment upon any defeasance of this Note in accordance
with the provisions of the Indenture.

                                                    [NAME OF GUARANTOR(S)]

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

                                     D-1

<PAGE>

                                                                       EXHIBIT E

                        [FORM OF SUPPLEMENTAL INDENTURE
                   TO BE DELIVERED BY SUBSEQUENT GUARANTORS]

            SUPPLEMENTAL INDENTURE (this "SUPPLEMENTAL INDENTURE"), dated as of
________________, among __________________ (the "GUARANTEEING SUBSIDIARY"), a
subsidiary of Key Energy Services, Inc. (or its permitted successor), a Maryland
corporation (the "COMPANY"), the Company, the other Guarantors (as defined in
the Indenture referred to herein) and The Chase Manhattan Bank, as trustee under
the indenture referred to below (the "TRUSTEE").

                              W I T N E S S E T H

            WHEREAS, the Company has heretofore executed and delivered to the
Trustee an indenture (the "INDENTURE"), dated as of March 6, 2001 providing for
the issuance of an aggregate outstanding principal amount of up to $175.0
million of 8 3/8% Senior Notes due 2008 (the "NOTES");

            WHEREAS, the Indenture provides that under certain circumstances the
Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental
indenture pursuant to which the Guaranteeing Subsidiary shall unconditionally
guarantee all of the Company's Obligations under the Notes and the Indenture on
the terms and conditions set forth herein (the "NOTE GUARANTEE"); and

            WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is
authorized to execute and deliver this Supplemental Indenture.

            NOW THEREFORE, in consideration of the foregoing and for other good
and valuable consideration, the receipt of which is hereby acknowledged, the
Guaranteeing Subsidiary and the Trustee mutually covenant and agree for the
equal and ratable benefit of the Holders of the Notes as follows:

            1.   CAPITALIZED TERMS. Capitalized terms used herein without
definition shall have the meanings assigned to them in the Indenture.

            2.   AGREEMENT TO GUARANTEE. The Guaranteeing Subsidiary hereby
agrees as follows:

                 (a)  Along with all Guarantors named in the Indenture, to
      jointly and severally Guarantee to each Holder of a Note authenticated and
      delivered by the Trustee and to the Trustee and its successors and
      assigns, the Notes or the obligations of the Company hereunder or
      thereunder, that:

                      (i) the principal of and interest on the Notes will be
           promptly paid in full when due, whether at maturity, by acceleration,
           redemption or otherwise, and interest on the overdue principal of and
           interest on the Notes, if any, if lawful, and all other obligations
           of the Company to the Holders or the Trustee hereunder or thereunder
           will be promptly paid in full or performed, all in accordance with
           the terms hereof and thereof; and

                      (ii) in case of any extension of time of payment or
           renewal of any Notes or any of such other obligations, that same will
           be promptly paid in full when due or performed in accordance with the
           terms of the extension or renewal, whether at stated maturity, by
           acceleration or otherwise.

                                     E-1

<PAGE>

                      Failing payment when due of any amount so guaranteed or
           any performance so guaranteed for whatever reason, the Guarantors
           shall be jointly and severally obligated to pay the same immediately.

                 (b) The obligations hereunder shall be unconditional,
      irrespective of the validity, regularity or enforceability of the Notes or
      the Indenture, the absence of any action to enforce the same, any waiver
      or consent by any Holder of the Notes with respect to any provisions
      hereof or thereof, the recovery of any judgment against the Company, any
      action to enforce the same or any other circumstance which might otherwise
      constitute a legal or equitable discharge or defense of a guarantor.

                 (c) The following is hereby waived: diligence, presentment,
      demand of payment, filing of claims with a court in the event of
      insolvency or bankruptcy of the Company, any right to require a proceeding
      first against the Company, protest, notice and all demands whatsoever.

                 (d) This Note Guarantee shall not be discharged except by
      complete performance of the obligations contained in the Notes and the
      Indenture, and the Guaranteeing Subsidiary accepts all obligations of a
      Guarantor under the Indenture.

                 (e) If any Holder or the Trustee is required by any court or
      otherwise to return to the Company, the Guarantors, or any Custodian,
      Trustee, liquidator or other similar official acting in relation to either
      the Company or the Guarantors, any amount paid by either to the Trustee or
      such Holder, this Note Guarantee, to the extent theretofore discharged,
      shall be reinstated in full force and effect.

                 (f) The Guaranteeing Subsidiary shall not be entitled to any
      right of subrogation in relation to the Holders in respect of any
      obligations guaranteed hereby until payment in full of all obligations
      guaranteed hereby.

                 (g) As between the Guarantors, on the one hand, and the Holders
      and the Trustee, on the other hand, (x) the maturity of the obligations
      guaranteed hereby may be accelerated as provided in Article 6 of the
      Indenture for the purposes of this Note Guarantee, notwithstanding any
      stay, injunction or other prohibition preventing such acceleration in
      respect of the obligations guaranteed hereby, and (y) in the event of any
      declaration of acceleration of such obligations as provided in Article 6
      of the Indenture, such obligations (whether or not due and payable) shall
      forthwith become due and payable by the Guarantors for the purpose of this
      Note Guarantee.

                 (h) The Guarantors shall have the right to seek contribution
      from any non-paying Guarantor so long as the exercise of such right does
      not impair the rights of the Holders under the Guarantee.

                 (i) Pursuant to Section 12.02 of the Indenture, after giving
      effect to any maximum amount and any other contingent and fixed
      liabilities that are relevant under any applicable Bankruptcy or
      fraudulent conveyance laws, and after giving effect to any collections
      from, rights to receive contribution from or payments made by or on behalf
      of any other Guarantor in respect of the obligations of such other
      Guarantor under Article 12 of the Indenture, this new Note Guarantee shall
      be limited to the maximum amount permissible such that the obligations of
      such Guarantor under this Note Guarantee will not constitute a fraudulent
      transfer or conveyance.

                                     E-2

<PAGE>

            3.   EXECUTION AND DELIVERY. Each Guaranteeing Subsidiary agrees
that the Note Guarantees shall remain in full force and effect notwithstanding
any failure to endorse on each Note a notation of such Note Guarantee.

            4.   GUARANTEEING SUBSIDIARY MAY CONSOLIDATE, ETC. ON CERTAIN TERMS.

            (a)  The Guaranteeing Subsidiary may not consolidate with or merge
with or into (whether or not such Guarantor is the surviving Person) another
corporation, Person or entity whether or not affiliated with such Guarantor
unless:

                 (i) subject to Sections 12.04 and 12.05 of the Indenture, the
      Person formed by or surviving any such consolidation or merger (if other
      than a Guarantor or the Company) unconditionally assumes all the
      obligations of such Guarantor, pursuant to a supplemental indenture in
      form and substance reasonably satisfactory to the Trustee, under the
      Notes, the Indenture and the Note Guarantee on the terms set forth herein
      or therein and immediately after giving effect to such transaction, no
      Default or Event of Default exists, or

                 (ii) the Note Guarantee of such Guarantor is to be released
      pursuant to Section 12.05 of the Indenture.

            (b) In case of any such consolidation, merger, sale or conveyance
and upon the assumption by the successor corporation, by supplemental indenture,
executed and delivered to the Trustee and satisfactory in form to the Trustee,
of the Note Guarantee endorsed upon the Notes and the due and punctual
performance of all of the covenants and conditions of the Indenture to be
performed by the Guarantor, such successor corporation shall succeed to and be
substituted for the Guarantor with the same effect as if it had been named in
the Indenture as a Guarantor. Such successor corporation thereupon may cause to
be signed any or all of the Note Guarantees to be endorsed upon all of the Notes
issuable hereunder which theretofore shall not have been signed by the Company
and delivered to the Trustee. All the Note Guarantees so issued shall in all
respects have the same legal rank and benefit under the Indenture as the Note
Guarantees theretofore and thereafter issued in accordance with the terms of the
Indenture as though all of such Note Guarantees had been issued at the date of
the execution hereof.

            (c) Except as set forth in Articles 4 and 5 of the Indenture, and
notwithstanding clauses (a) and (b) above, nothing contained in the Indenture or
in any of the Notes shall prevent any consolidation or merger of a Guarantor
with or into the Company or another Guarantor, or shall prevent any sale or
conveyance of the property of a Guarantor as an entirety or substantially as an
entirety to the Company or another Guarantor.

            5.   RELEASES.

            (a)  In the event of a sale or other disposition of all of the
assets of any Guarantor, by way of merger, consolidation or otherwise, or a
sale or other disposition of all to the capital stock of any Guarantor, in
each case to a Person that is not (either before or after giving effect to
such transaction) a [Restricted] Subsidiary of the Company, then such
Guarantor (in the event of a sale or other disposition, by way of merger,
consolidation or otherwise, of all of the capital stock of such Guarantor) or
the corporation acquiring the property (in the event of a sale or other
disposition of all or substantially all of the assets of such Guarantor) will
be released and relieved of any obligations under its Note Guarantee, if
immediately after giving effect to such sale, there is no Default or Event of
Default that has occurred and is continuing. If such Guarantor is not released
and relieved of its obligations under its Note Guarantee

                                     E-3

<PAGE>

because a Default or Event of Default has occurred and is continuing
immediately after giving effect to such sale, such Guarantor will be released
and relieved of such obligations as soon thereafter as all Default and Events
of Default have been waived or cured. If the Company designates any Restricted
Subsidiary that is a Guarantor as an Unrestricted Subsidiary in accordance
with the provisions of Section 4.19 of the Indenture, such Restricted
Subsidiary will be released and relieved of any obligations under its Note
Guarantee. The Trustee shall execute any documents reasonably requested in
order to evidence the release of any Guarantor, pursuant to the provisions of
Section 12.05 of the Indenture, from its obligations under its Note Guarantee.

            (b)  Any Guarantor not released from its obligations under its
Note Guarantee shall remain liable for the full amount of principal of and
interest on the Notes and for the other obligations of any Guarantor under the
Indenture as provided in Article 12 of the Indenture.

            6.   NO RECOURSE AGAINST OTHERS. No past, present or future
director, officer, employee, incorporator, stockholder or agent of the
Guaranteeing Subsidiary, as such, shall have any liability for any obligations
of the Company or any Guaranteeing Subsidiary under the Notes, any Note
Guarantees, the Indenture or this Supplemental Indenture or for any claim
based on, in respect of, or by reason of, such obligations or their creation.
Each Holder of the Notes by accepting a Note waives and releases all such
liability. The waiver and release are part of the consideration for issuance
of the Notes. Such waiver may not be effective to waive liabilities under the
federal securities laws and it is the view of the SEC that such a waiver is
against public policy.

            7.   NEW YORK LAW TO GOVERN. THE INTERNAL LAW OF THE STATE OF NEW
YORK SHALL GOVERN AND BE USED TO CONSTRUE THIS SUPPLEMENTAL INDENTURE BUT
WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE
EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE
REQUIRED THEREBY.

            8.   COUNTERPARTS. The parties may sign any number of copies of
this Supplemental Indenture. Each signed copy shall be an original, but all of
them together represent the same agreement.

            9.   EFFECT OF HEADINGS. The Section headings herein are for
convenience only and shall not affect the construction hereof.

            10.  THE TRUSTEE. The Trustee shall not be responsible in any
manner whatsoever for or in respect of the validity or sufficiency of this
Supplemental Indenture or for or in respect of the recitals contained herein,
all of which recitals are made solely by the Guaranteeing Subsidiary and the
Company.

                                     E-4

<PAGE>

            IN WITNESS WHEREOF, the parties hereto have caused this Supplemental
Indenture to be duly executed and attested, all as of the date first above
written.

Dated:  _______________, ____

                                    [GUARANTEEING SUBSIDIARY]

                                    By: _______________________________
                                    Name:
                                    Title:

                                    [COMPANY]

                                    By: _______________________________
                                    Name:
                                    Title:

                                    [EXISTING GUARANTORS]

                                    By:_________________________________
                                    Name:
                                    Title:

                                    THE CHASE MANHATTAN BANK,
                                      as Trustee

                                    By:________________________________
                                        Authorized Signatory

                                     E-5

<PAGE>

                                   SCHEDULE I

               The following schedule lists each Guarantor under the Indenture
as of the Issue Date.

Yale E. Key, Inc., a Texas corporation; Key Energy Drilling Inc., a Delaware
corporation; WellTech Eastern, Inc., a Delaware corporation; Odessa Exploration
Incorporated, a Delaware corporation; Kalkaska Oilfield Services, Inc., a
Michigan corporation; Well-Co Oil Service, Inc., a Nevada corporation; Patrick
Well Service, Inc., a Kansas corporation; Ram Oil Well Service, Inc., a New
Mexico corporation; Rowland Trucking Co., Inc., a New Mexico corporation;
Landmark Fishing & Rental, Inc., an Oklahoma corporation; Dunbar Well Service,
Inc., a Colorado corporation; Frontier Well Service, Inc., a Wyoming
corporation; Key Rocky Mountain, Inc., a Delaware corporation; Key Four Corners,
Inc., a Delaware corporation; Jeter Service Co., an Oklahoma corporation; Jeter
Well Service, Inc., an Oklahoma corporation; Jeter Transportation, Inc., an
Oklahoma corporation; Industrial Oilfield Supply, Inc., an Oklahoma corporation;
Brooks Well Servicing, Inc., a Delaware corporation; Updike Brothers, Inc., a
Wyoming corporation; J.W. Gibson Well Service Company, a Delaware corporation;
Key Energy Services--South Texas, Inc., a Delaware corporation; Key Energy
Services--California, Inc., a Delaware corporation; Watson Oilfield Service &
Supply, Inc., a Delaware corporation; WellTech Mid-Continent, Inc., a Delaware
corporation; Dawson Production Management, Inc., a Delaware corporation; Dawson
Production Taylor, Inc., a Delaware corporation; Dawson Production Acquisition
Corp., a Delaware corporation; and Dawson Production Partners, L.P., a Delaware
limited partnership.

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