Document:

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                                                                   EXHIBIT 4.3

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                                  KINDER MORGAN
                              ENERGY PARTNERS, L.P.

                                     ISSUER

                                       and

                            FIRST UNION NATIONAL BANK

                                     Trustee

                                    INDENTURE

                           Dated as of January 2, 2001

                          SUBORDINATED DEBT SECURITIES

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<PAGE>   2

                       KINDER MORGAN ENERGY PARTNERS, L.P.

                 CERTAIN SECTIONS OF THIS INDENTURE RELATING TO
                   SECTIONS 310 THROUGH 318, INCLUSIVE, OF THE
                          TRUST INDENTURE ACT OF 1939:
<TABLE>
<CAPTION>
Trust Indenture                                                                                Indenture Section
  Act Section                                                                                  -----------------
---------------
<S>                                                                                            <C>
Section 310(a)(1)............................................................................    609
           (a)(2)............................................................................    609
           (a)(3)............................................................................    Not Applicable
           (a)(4)............................................................................    Not Applicable
           (b)...............................................................................    608; 610
Section 311(a)...............................................................................    613
           (b)...............................................................................    613
Section 312(a)...............................................................................    701; 702
           (b)...............................................................................    702
           (c)...............................................................................    702
Section 313(a)...............................................................................    703
           (b)...............................................................................    703
           (c)...............................................................................    703
           (d)...............................................................................    703
Section 314(a)...............................................................................    704
           (a)(4)............................................................................    104; 1004
           (b)...............................................................................    Not Applicable
           (c)(1)............................................................................    101
           (c)(2)............................................................................    101; 102
           (c)(3)............................................................................    Not Applicable
           (d)...............................................................................    Not Applicable
           (e)...............................................................................    102
Section 315(a)...............................................................................    601
           (b)...............................................................................    602
           (c)...............................................................................    601
           (d)...............................................................................    601
           (e)...............................................................................    514
Section 316(a)...............................................................................    101
           (a)(1)(A).........................................................................    502; 512
           (a)(1)(B).........................................................................    513
           (a)(2)............................................................................    Not Applicable
           (b)...............................................................................    508
           (c)...............................................................................    104
Section 317(a)(1)............................................................................    503
           (a)(2)............................................................................    504
           (b)...............................................................................    1003
Section 318(a)...............................................................................    107
</TABLE>

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NOTE: This reconciliation and tie shall not, for any purpose, be deemed to be a
part of the Indenture.

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                                TABLE OF CONTENTS

<TABLE>
<CAPTION>

                                                                                      Page
                                                                                      ----
                                         ARTICLE I

                  DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

<S>            <C>                                                                      <C>
SECTION 101.   Definitions...............................................................1
SECTION 102.   Compliance Certificates and Opinions......................................8
SECTION 103.   Form of Documents Delivered to Trustee....................................8
SECTION 104.   Acts of Holders; Record Dates.............................................9
SECTION 105.   Notices, Etc., to Trustee and Partnership................................10
SECTION 106.   Notice to Holders; Waiver................................................10
SECTION 107.   Conflict with Trust Indenture Act........................................11
SECTION 108.   Effect of Headings and Table of Contents.................................11
SECTION 109.   Successors and Assigns...................................................11
SECTION 110.   Separability Clause......................................................11
SECTION 111.   Benefits of Indenture....................................................11
SECTION 112.   Governing Law............................................................12
SECTION 113.   Legal Holidays...........................................................12
SECTION 114.   Language of Notices, Etc.................................................12
SECTION 115.   Interest Limitation......................................................12
SECTION 116.   Non-Recourse to the General Partner; No Personal Liability of
               Officers, Directors, Employees or Partners...............................13

                                        ARTICLE II

                                      SECURITY FORMS

SECTION 201.   Forms Generally..........................................................13
SECTION 202.   Form of Face of Security.................................................14
SECTION 203.   Form of Reverse of Security..............................................16
SECTION 204.   Global Securities........................................................21
SECTION 205.   Form of Trustee's Certificate and Authorization..........................22

                                        ARTICLE III

                                        SECURITIES

SECTION 301.   Amount Unlimited; Issuable in Series.....................................23
SECTION 302.   Denominations............................................................26
SECTION 303.   Execution, Authentication, Delivery and Dating...........................26
SECTION 304.   Temporary Securities.....................................................28
SECTION 305.   Registration, Registration of Transfer and Exchange......................29
SECTION 306.   Mutilated, Destroyed, Lost and Stolen Securities.........................30
SECTION 307.   Payment of Interest; Interest Rights Preserved...........................31
SECTION 308.   Persons Deemed Owners....................................................32
SECTION 309.   Cancellation.............................................................33
SECTION 310.   Computation of Interest..................................................33
SECTION 311.   CUSIP Numbers............................................................33
</TABLE>

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<TABLE>

                                        ARTICLE IV

                                SATISFACTION AND DISCHARGE

<S>            <C>                                                                       <C>
SECTION 401.   Satisfaction and Discharge of Indenture...................................34
SECTION 402.   Application of Trust Money................................................35

                                         ARTICLE V

                                         REMEDIES

SECTION 501.   Events of Default.........................................................35
SECTION 502.   Acceleration of Maturity; Rescission and Annulment........................36
SECTION 503.   Collection of Indebtedness and Suits for Enforcement by Trustee...........37
SECTION 504.   Trustee May File Proofs of Claim..........................................38
SECTION 505.   Trustee May Enforce Claims Without Possession of Securities...............38
SECTION 506.   Application of Money Collected............................................38
SECTION 507.   Limitation on Suits.......................................................39
SECTION 508.   Unconditional Right of Holders to Receive Principal,
                    Premium and Interest.................................................39
SECTION 509.   Restoration of Rights and Remedies........................................39
SECTION 510.   Rights and Remedies Cumulative............................................40
SECTION 511.   Delay or Omission Not Waiver..............................................40
SECTION 512.   Control by Holders........................................................40
SECTION 513.   Waiver of Past Defaults...................................................41
SECTION 514.   Undertaking for Costs.....................................................41

                                        ARTICLE VI

                                        THE TRUSTEE

SECTION 601.   Certain Duties and Responsibilities.......................................41
SECTION 602.   Notice of Defaults........................................................42
SECTION 603.   Certain Rights of Trustee.................................................43
SECTION 604.   Not Responsible for Recitals or Issuance of Securities....................44
SECTION 605.   May Hold Securities.......................................................44
SECTION 606.   Money Held in Trust.......................................................44
SECTION 607.   Compensation and Reimbursement............................................44
SECTION 608.   Disqualification; Conflicting Interests...................................45
SECTION 609.   Corporate Trustee Required; Eligibility...................................45
SECTION 610.   Resignation and Removal; Appointment of Successor.........................45
SECTION 611.   Acceptance of Appointment by Successor....................................47
SECTION 612.   Merger, Conversion, Consolidation or Succession to Business...............48
SECTION 613.   Preferential Collection of Claims Against Partnership.....................48
SECTION 614.   Appointment of Authenticating Agent.......................................48

                                        ARTICLE VII

                   HOLDERS' LISTS AND REPORTS BY TRUSTEE AND PARTNERSHIP

SECTION 701.   Partnership to Furnish Trustee Names and Addresses of Holders.............50
SECTION 702.   Preservation of Information; Communications to Holders....................50
SECTION 703.   Reports by Trustee........................................................50
SECTION 704.   Reports by Partnership....................................................51
</TABLE>

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<TABLE>

                                       ARTICLE VIII

                   CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

<S>            <C>                                                                       <C>
SECTION 801.   Partnership May Consolidate, Etc., Only on Certain Terms..................51
SECTION 802.   Successor Substituted.....................................................52

                                        ARTICLE IX

                                  SUPPLEMENTAL INDENTURES

SECTION 901.   Supplemental Indentures Without Consent of Holders........................52
SECTION 902.   Supplemental Indentures with Consent of Holders...........................53
SECTION 903.   Execution of Supplemental Indentures......................................54
SECTION 904.   Effect of Supplemental Indentures.........................................54
SECTION 905.   Conformity with Trust Indenture Act.......................................54
SECTION 906.   Reference in Securities to Supplemental Indentures........................54

                                         ARTICLE X

                                         COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest...............................55
SECTION 1002.  Maintenance of Office or Agency..........................................55
SECTION 1003.  Money for Securities Payments to Be Held in Trust........................55
SECTION 1004.  Statement by Officers as to Default......................................56
SECTION 1005.  Existence................................................................57
SECTION 1006.  Waiver of Certain Covenants..............................................57

                                        ARTICLE XI

                                 REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article.................................................57
SECTION 1102.  Election to Redeem; Notice to Trustee....................................57
SECTION 1103.  Selection by Trustee of Securities to be Redeemed........................58
SECTION 1104.  Notice of Redemption.....................................................58
SECTION 1105.  Deposit of Redemption Price..............................................59
SECTION 1106.  Securities Payable on Redemption Date....................................59
SECTION 1107.  Securities Redeemed in Part..............................................59

                                        ARTICLE XII

                                       SINKING FUND

SECTION 1201.  Applicability of Article.................................................60
SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities....................60
SECTION 1203.  Redemption of Securities for Sinking Fund................................60

                                       ARTICLE XIII

                                        DEFEASANCE

SECTION 1301.  Applicability of Article.................................................61
SECTION 1302.  Legal Defeasance.........................................................61
SECTION 1303.  Covenant Defeasance......................................................62
SECTION 1304.  Application by Trustee of Funds Deposited for Payment of Securities......64
</TABLE>

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<TABLE>

<S>            <C>                                                                      <C>
SECTION 1305.  Repayment to Partnership.................................................64
SECTION 1306.  Reinstatement............................................................64

                                        ARTICLE XIV

                                SUBORDINATION OF SECURITIES

SECTION 1401.  Securities Subordinated to Senior Debt...................................65
SECTION 1402.  Distribution on Dissolution, Liquidation and Reorganization;
                     Subrogation of Securities..........................................66
SECTION 1403.  Payments on Securities Permitted.........................................68
SECTION 1404.  Authorization of Holders of Securities to Trustee to Effect
                     Subordination......................................................68
SECTION 1405.  Notices to Trustee.......................................................68
SECTION 1406.  Trustee as Holder of Senior Debt.........................................69
SECTION 1407.  Modification of Terms of Senior Debt.....................................69
</TABLE>

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<PAGE>   7

         INDENTURE dated as of January 2, 2001, between KINDER MORGAN ENERGY
PARTNERS, L.P., a Delaware limited partnership (the "Partnership"), having its
principal office at One Allen Center, Suite 1000, 500 Dallas Street, Houston
Texas, 77002, and FIRST UNION NATIONAL BANK, a national banking association, as
Trustee (the "Trustee").

                           RECITALS OF THE PARTNERSHIP

         The Partnership has duly authorized the execution and delivery of this
Indenture to provide for the issuance from time to time of its unsecured
subordinated debentures, notes or other evidences of indebtedness (the
"Securities"), to be issued in one or more series as in this Indenture provided.

         All things necessary to make this Indenture a valid agreement of the
Partnership, in accordance with its terms, have been done.

         This Indenture is subject to the provisions of the Trust Indenture Act
that are required to be a part of this Indenture and, to the extent applicable,
shall be governed by such provisions.

         NOW, THEREFORE, THIS INDENTURE WITNESSETH:

         For and in consideration of the premises and the purchase of the
Securities by the Holders thereof, it is mutually agreed, for the equal and
proportionate benefit of all Holders of the Securities or of any series thereof,
as follows:

                                    ARTICLE I

         DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

SECTION 101. Definitions

         For all purposes of this Indenture, except as otherwise expressly
provided or unless the context otherwise requires:

                  (1) the terms defined in this Article have the meanings
assigned to them in this Article and include the plural as well as the singular;

                  (2) all other terms used herein which are defined in the Trust
Indenture Act, either directly, or by reference therein, have the meanings
assigned to them therein;

                  (3) all accounting terms not otherwise defined herein have the
meanings assigned to them in accordance with generally accepted accounting
principles in the United States, and, except as otherwise herein expressly
provided, the term "generally accepted accounting principles" with respect to
any computation required or permitted hereunder shall mean such accounting
principles as are generally accepted in the United States at the date of such
computation;

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                  (4) the words "herein", "hereof" and "hereunder" and other
words of similar import refer to this Indenture as a whole and not to any
particular Article, Section or other subdivision; and

                  (5) the words "Article" and "Section" refer to an Article and
Section, respectively, of this Indenture.

         "Act", when used with respect to any Holder, has the meaning specified
in Section 104.

         "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 the purposes of this definition,
"control" when used with respect to any specified Person means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise,
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

         "Authenticating Agent" means any Person authorized by the Trustee
pursuant to Section 614 to act on behalf of the Trustee to authenticate
Securities of one or more series.

         "Authorized Newspaper" means a newspaper, in the English language or in
an official language of the country of publication, customarily published on
each Business Day, whether or not published on Saturdays, Sundays or holidays,
and of general circulation in the place in connection with which the term is
used or in the financial community of such place.

         "Bankruptcy Law" means Title 11, U.S. Code, or any similar federal or
state law for the relief of debtors or the protection of creditors.

         "Board of Directors" means the board of directors of the General
Partner, or the executive or any other committee of that board duly authorized
to act in respect thereof. If the Partnership shall change its form of entity to
other than a limited partnership, the references to officers or the Board of
Directors of the General Partner shall mean the officers or the Board of
Directors (or other comparable governing body) of the Partnership.

         "Board Resolution" means a copy of a resolution certified by the
Corporate Secretary of the General Partner, the principal financial officer of
the General Partner or any other authorized officer of the General Partner or a
Person duly authorized by any of them, to have been duly adopted by the Board of
Directors and to be in full force and effect on the date of such certification,
and delivered to the Trustee.

         "Business Day", when used with respect to any Place of Payment or other
location, means, except as otherwise provided as contemplated by Section 301
with respect to any series of Securities, each Monday, Tuesday, Wednesday,
Thursday and Friday which is not a day on which banking institutions in that
Place of Payment or other location are authorized or obligated by law, executive
order or regulation to close.

         "Capital Interests" means any and all shares, interests,
participations, rights or other equivalents (however designated) of capital
stock, including, without limitation, with respect to partnerships, partnership
interests (whether general or limited) and any other interest or

                                       2
<PAGE>   9

participation that confers on a Person the right to receive a share of the
profits and losses of, or distributions of assets of, such partnership.

         "Commission" means the Securities and Exchange Commission, as from time
to time constituted, created under the Exchange Act or, if at any time after the
execution of this instrument such Commission is not existing and performing the
duties now assigned to it under the Trust Indenture Act, then the body
performing such duties at such time.

         "Corporate Trust Office" means the office of the Trustee at which at
any particular time its corporate trust business shall be principally
administered, which at the date hereof is 40 Broad Street, Suite 550, New York,
New York 10004.

         "corporation" includes corporations, associations, partnerships
(general or limited), limited liability companies, joint-stock companies and
business trusts.

         "covenant defeasance" has the meaning specified in Section 1303.

         "Custodian" means any receiver, trustee, assignee, liquidator or
similar official under any Bankruptcy Law.

         "Debt" means any obligation created or assumed by any Person for the
repayment of money borrowed, any purchase money obligation created or assumed by
such Person and any guarantee of the foregoing.

         "Default" means, with respect to a series of Securities, any event
which is, or after notice or lapse of time or both would become, an Event of
Default with respect to Securities of such series.

         "Defaulted Interest" has the meaning specified in Section 307.

         "defeasance" has the meaning specified in Section 1302.

         "Definitive Security" means a Security other than a Global Security or
a temporary Security.

         "Depositary" means, with respect to Securities of any series issuable
in whole or in part in the form of one or more Global Securities, a clearing
agency registered under the Exchange Act that is designated to act as Depositary
for such Securities as contemplated by Section 301, until a successor Depositary
shall have become such pursuant to the applicable provisions of this Indenture,
and thereafter shall mean or include each Person which is then a Depositary
hereunder, and if at any time there is more than one such Person, shall be a
collective reference to such Persons.

         "Dollar" or "$" means the coin or currency of the United States of
America as at the time of payment is legal tender for the payment of public and
private debts.

         "Event of Default" has the meaning specified in Section 501.

                                       3
<PAGE>   10

         "Exchange Act" means the Securities Exchange Act of 1934, as amended
from time to time, and any statute successor thereto.

         "General Partner" means Kinder Morgan G.P., Inc., a Delaware
corporation.

         "Global Security" means a Security in global form that evidences all or
part of the Securities of any series and is registered in the name of, the
Depositary for such Securities or a nominee thereof.

         "Holder" means a Person in whose name a Security is registered in the
Security Register.

         "Indenture" means this instrument as originally executed or as it may
from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof,
including, for all purposes of this instrument, and any such supplemental
indenture, the provisions of the Trust Indenture Act that are deemed to be a
part of and govern this instrument and any such supplemental indenture,
respectively. The term "Indenture" also shall include the terms of particular
series of Securities established as contemplated by Section 301.

         "interest", when used with respect to an Original Issue Discount
Security which by its terms bears interest only after Maturity, means interest
payable after Maturity.

         "Interest Payment Date", when used with respect to any Security, means
the Stated Maturity of an installment of interest on such Security.

         "Maturity", when used with respect to any Security, means the date on
which the principal of such Security or an installment of principal becomes due
and payable as therein or herein provided, whether at the Stated Maturity or by
declaration of acceleration, call for redemption or otherwise.

         "Notice of Default" means a written notice of the kind specified in
Section 501(3).

         "Officers' Certificate" of a Person means a certificate signed by the
Chairman of the Board, the Vice Chairman, the President or a Vice President, and
by the Treasurer or the Secretary, of the Person, or if such Person is a
partnership, of its general partner, and delivered to the Trustee. One of the
officers or such other Persons (as applicable) signing an Officers' Certificate
given pursuant to Section 1004 shall be the principal executive, financial or
accounting officer of the Person, or if such Person is a partnership, of its
general partner.

         "Opinion of Counsel" means a written opinion of legal counsel, who may
be an employee of or counsel for the Partnership, which opinion shall comply
with the provisions of Sections 102 and 103. Such counsel shall be acceptable to
the Trustee, whose acceptance shall not be unreasonably withheld.

         "Original Issue Discount Security" means any Security which provides
for an amount less than the stated principal amount thereof to be due and
payable upon a declaration of acceleration of the Maturity thereof pursuant to
Section 502.

                                       4
<PAGE>   11

         "Outstanding", when used with respect to Securities, means, as of the
date of determination, all Securities theretofore authenticated and delivered
under this Indenture, except:

         (i) Securities theretofore canceled by the Trustee or delivered to the
Trustee for cancellation;

         (ii) Securities for whose payment or redemption money in the necessary
amount has been theretofore deposited with the Trustee or any Paying Agent
(other than the Partnership) in trust or set aside and segregated in trust by
the Partnership (if the Partnership shall act as its own Paying Agent) for the
Holders of such Securities; provided, however, that, if such Securities are to
be redeemed, notice of such redemption has been duly given pursuant to this
Indenture or provision therefor has been made;

         (iii) Securities which have been paid pursuant to Section 306 or in
exchange for or in lieu of which other Securities have been authenticated and
delivered pursuant to this Indenture, other than any such Securities in respect
of which there shall have been presented to the Trustee proof satisfactory to it
that such Securities are held by a bona fide purchaser in whose hands such
Securities are valid obligations of the Partnership; and

         (iv) Securities, except to the extent provided in Sections 1302 and
1303, with respect to which the Partnership has effected defeasance or covenant
defeasance as provided in Article XIII;

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given any request, demand,
authorization, direction, notice, consent or waiver hereunder, (A) the principal
amount of an Original Issue Discount Security that shall be deemed to be
Outstanding shall be the amount of the principal thereof that would be due and
payable as of the date of such determination upon acceleration of the Maturity
thereof on such date pursuant to Section 502, (B) the principal amount of a
Security denominated in one or more currencies or currency units other than U.S.
dollars shall be the U.S. dollar equivalent of such currencies or currency
units, determined in the manner provided as contemplated by Section 301 on the
date of original issuance of such Security, of the principal amount (or, in the
case of an Original Issue Discount Security, the U.S. dollar equivalent (as so
determined) on the date of original issuance of such Security, of the amount
determined as provided in Clause (A) above) of such Security, and (C) Securities
owned by the Partnership or any other obligor upon the Securities or any
Affiliate of the Partnership or of such other obligor shall be disregarded and
deemed not to be Outstanding, except that, in determining whether the Trustee
shall be protected in relying upon any such request, demand, authorization,
direction, notice, consent or waiver, only Securities which the Trustee knows to
be so owned shall be so disregarded. Securities so owned as described in Clause
(C) above which have been pledged in good faith may be regarded as Outstanding
if the pledgee establishes to the satisfaction of the Trustee the pledgee's
right so to act with respect to such Securities and that the pledgee is not the
Partnership or any other obligor upon the Securities or any Affiliate of the
Partnership or of such other obligor.

         "Partnership" means the Person named as the "Partnership" in the first
paragraph of this instrument until a successor Person shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Partnership" shall mean such successor Person.

                                       5
<PAGE>   12

         "Partnership Request" or "Partnership Order" means a written request or
order signed in the name of the Partnership by the Chairman of the Board, the
Vice Chairman, the President or a Vice President of the General Partner, and by
the Treasurer or Secretary of the General Partner, and delivered to the Trustee,
or if the Partnership shall change its form of entity to other than a limited
partnership, by Persons or officers, members, agents and the like positions
comparable to those of the foregoing nature, as applicable.

         "Paying Agent" means any Person authorized by the Partnership to pay
the principal of or any premium or interest on any Securities on behalf of the
Partnership.

         "Periodic Offering" means an offering of Securities of a series from
time to time, the specific terms of which Securities, including, without
limitation, the rate or rates of interest or formula for determining the rate or
rates of interest thereon, if any, the Stated Maturity or Stated Maturities
thereof, the original issue date or dates thereof, the redemption provisions, if
any, with respect thereto, and any other terms specified as contemplated by
Section 301 with respect thereto, are to be determined by the Partnership upon
the issuance of such Securities.

         "Person" means any individual, corporation, partnership, joint venture,
limited liability company, association, joint-stock company, trust, other
entity, unincorporated organization or government, or any agency or political
subdivision thereof.

         "Place of Payment", when used with respect to the Securities of any
series, means, unless otherwise specifically provided for with respect to such
series as contemplated by Section 301, the office or agency of the Partnership
in The City of New York and such other place or places where, subject to the
provisions of Section 1002, the principal of and any premium and interest on the
Securities of that series are payable as specified as contemplated by Section
301.

         "Predecessor Security" of any particular Security means every previous
Security evidencing all or a portion of the same Debt as that evidenced by such
particular Security; and, for the purposes of this definition, any Security
authenticated and delivered under Section 306 in exchange for or in lieu of a
mutilated, destroyed, lost or stolen Security shall be deemed to evidence the
same Debt as the mutilated, destroyed, lost or stolen Security.

         "Redemption Date", when used with respect to any Security to be
redeemed, means the date fixed for such redemption by or pursuant to this
Indenture.

         "Redemption Price", when used with respect to any Security to be
redeemed, means the price at which it is to be redeemed pursuant to this
Indenture.

         "Regular Record Date" for the interest payable on any Interest Payment
Date on the Securities of any series means the date specified for that purpose
as contemplated by Section 301.

         "Securities" has the meaning stated in the first recital of this
Indenture and more particularly means any Securities authenticated and delivered
under this Indenture.

         "Security Register" and "Security Registrar" have the respective
meanings specified in Section 305.

                                       6
<PAGE>   13

         "Senior Debt" of the Partnership, unless otherwise provided with
respect to the Securities of a series as contemplated by Section 301, means (1)
all Debt of the Partnership, whether currently outstanding or hereafter issued,
unless, by the terms of the instrument creating or evidencing such Debt, it is
provided that such Debt is not superior in right of payment to the Securities or
to other Debt which is pari passu with or subordinated to the Securities, and
(2) any modifications, refunding, deferrals, renewals or extensions of any such
Debt or securities, notes or other evidence of Debt issued in exchange for such
Debt; provided that in no event shall "Senior Debt" include (a) Debt of the
Partnership owed or owing to any Subsidiary of the Partnership or any officer,
director or employee of the Partnership or any Subsidiary of the Partnership,
(b) Debt to trade creditors or (c) any liability for taxes owed or owing by the
Partnership.

         "Special Record Date" for the payment of any Defaulted Interest means a
date fixed by the Trustee pursuant to Section 307.

         "Stated Maturity", when used with respect to the principal of any
Security or any installment of principal thereof or interest thereon, means the
date specified in such Security as the fixed date on which the principal of such
Security or such installment of principal or interest is due and payable.

         "Subsidiary" means, with respect to any Person, any corporation,
association or other business entity of which more than 50% of the total voting
power of the Capital Interests of such Person entitled (without regard to the
occurrence of any contingency) to vote in the election of directors, managers or
trustees thereof or, in the case of a partnership, more than 50% of the
partners' Capital Interests (considering all partners' Capital Interests as a
single class), is at the time owned or controlled, directly or indirectly, by
such Person or one or more of the other Subsidiaries of such Person or a
combination thereof.

         "Trust Indenture Act" means the Trust Indenture Act of 1939 as in force
at the date as of which this instrument was executed, except as otherwise
provided in Section 905; provided, however, that if the Trust Indenture Act of
1939 is amended after such date, "Trust Indenture Act" means, to the extent
required by any such amendment, the Trust Indenture Act of 1939 as so amended.

         "Trustee" means the Person named as the "Trustee" in the first
paragraph of this instrument until a successor Trustee shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean or include each Person who is then a Trustee hereunder, and
if at any time there is more than one such Person, "Trustee" as used with
respect to the Securities of any series shall mean each Trustee with respect to
Securities of that series.

         "U.S. Government Obligations" means securities which are (i) direct
obligations of the United States for the payment of which its full faith and
credit is pledged, or (ii) obligations of a Person controlled or supervised by
and acting as an agency or instrumentality of the United States, the payment of
which is unconditionally guaranteed as a full faith and credit obligation by the
United States, each of which are not callable or redeemable at the option of the
issuer thereof.

                                       7
<PAGE>   14

         "Vice President", when used with respect to the Partnership, means any
vice president of the General Partner, or when used with respect to the Trustee,
means any vice president of the Trustee.

SECTION 102. Compliance Certificates and Opinions

         Upon any application or request by the Partnership to the Trustee to
take or refrain from taking any action under any provision of this Indenture,
the Partnership shall furnish to the Trustee an Officers' Certificate in form
and substance reasonably satisfactory to the Trustee 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 complied with,
and an Opinion of Counsel in form and substance reasonably satisfactory to the
Trustee stating that, in the opinion of such counsel, all such conditions
precedent have been complied with. Each such certificate or opinion shall be
given in the form of an Officers' Certificate, if to be given by officers of the
General Partner, or an Opinion of Counsel, if to be given by counsel, and shall
comply with the requirements of the Trust Indenture Act and any other
requirements set forth in this Indenture.

         Every Officers' Certificate or Opinion of Counsel (except for
certificates provided for in Section 1004) shall include:

                  (1) a statement that each individual signing such certificate
or opinion has read such covenant or condition and the definitions herein
relating thereto;

                  (2) 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;

                  (3) a statement that, in the opinion of each such individual,
he 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 complied with; and

                  (4) a statement as to whether, in the opinion of each such
individual, such condition or covenant has been complied with.

SECTION 103. Form of Documents Delivered to Trustee

         In any case where several matters are required to be certified by, or
covered by an opinion of, any specified Person, it is not necessary that all
such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or give an opinion with respect to some matters and one
or more other such Persons as to other matters, and any such Person may certify
or give an opinion as to such matters in one or several documents.

         Any certificate or opinion of an officer of the Partnership or the
General Partner may be based, insofar as it relates to legal matters, upon a
certificate or opinion of, or representations by, counsel, unless such officer
knows, or in the exercise of reasonable care should know, that the certificate
or opinion or representations with respect to the matters upon which his
certificate or

                                       8
<PAGE>   15

opinion is based are erroneous. Any such certificate or opinion of counsel may
be based, insofar as it relates to factual matters, upon a certificate or
opinion of, or representations by, an officer or officers of the Partnership or
the General Partner stating that the information with respect to such factual
matters is in the possession of the Partnership or the General Partner, unless
such counsel knows that the certificate or opinion or representations with
respect to such matters are erroneous.

         Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

SECTION 104. Acts of Holders; Record Dates

         Any request, demand, authorization, direction, notice, consent, waiver
or other action provided or permitted by this Indenture to be given or taken by
Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed (either physically or by means of a facsimile
or an electronic transmission, provided that such electronic transmission is
transmitted through the facilities of a Depositary) by such Holders in person or
by an agent duly appointed in writing; and, except as herein otherwise expressly
provided, such action shall become effective when such instrument or instruments
are delivered (either physically or by means of a facsimile or an electronic
transmission, provided that such electronic transmission is transmitted through
the facilities of a Depositary) to the Trustee and, where it is hereby expressly
required, to the Partnership. Such instrument or instruments (and the action
embodied therein and evidenced thereby) are herein sometimes referred to as the
"Act" of the Holders signing such instrument or instruments. Proof of execution
of any such instrument or of a writing appointing any such agent shall be
sufficient for any purpose of this Indenture and (subject to Section 315 of the
Trust Indenture Act) conclusive in favor of the Trustee and the Partnership, if
made in the manner provided in this Section.

         Without limiting the generality of the foregoing, a Holder, including a
Depositary that is a Holder of a Global Security, may make, give or take, by a
proxy or proxies, duly appointed in writing, any request, demand, authorization,
direction, notice, consent, waiver or other action provided in this Indenture to
be made, given or taken by Holders, and a Depositary that is a Holder of a
Global Security may provide its proxy or proxies to the beneficial owners of
interests in any such Global Security.

         The fact and date of the execution by any Person of any such instrument
or writing may be proved by the affidavit of a witness of such execution or by a
certificate of a notary public or other officer authorized by law to take
acknowledgments of deeds, certifying that the individual signing such instrument
or writing acknowledged to him the execution thereof. Where such execution is by
a signer acting in a capacity other than his individual capacity, such
certificate or affidavit shall also constitute sufficient proof of his
authority. The fact and date of the execution of any such instrument or writing,
or the authority of the Person executing the same, may also be proved in any
other manner which the Trustee deems sufficient.

                                       9
<PAGE>   16

         The ownership, principal amount and serial numbers of Securities held
by any Person, and the date of commencement of such Person's holding the same,
shall be proved by the Security Register.

         Any request, demand, authorization, direction, notice, consent, waiver
or other action of the Holder of any Security shall bind every future Holder of
the same Security and the Holder of every Security issued upon the registration
of transfer thereof or in exchange therefor or in lieu thereof in respect of
anything done, omitted or suffered to be done by the Trustee or the Partnership
in reliance thereon, whether or not notation of such action is made upon such
Security.

         Without limiting the foregoing, a Holder entitled hereunder to give or
take any action hereunder with regard to any particular Security may do so with
regard to all or any part of the principal amount of such Security or by one or
more duly appointed agents each of which may do so pursuant to such appointment
with regard to all or any different part of such principal amount.

         The Partnership may set any day as the record date for the purpose of
determining the Holders of Outstanding Securities of any series entitled to give
or take any request, demand, authorization, direction, notice, consent, waiver
or other action provided or permitted by this Indenture to be given or taken by
Holders of Securities of such series, but the Partnership shall have no
obligation to do so. With regard to any record date set pursuant to this
paragraph, the Holders of Outstanding Securities of the relevant series on such
record date (or their duly appointed agents), and only such Persons, shall be
entitled to give or take the relevant action, whether or not such Holders remain
Holders after such record date.

SECTION 105. Notices, Etc., to Trustee and Partnership

         Any request, demand, authorization, direction, notice, consent, waiver
or Act of Holders or other document provided or permitted by this Indenture to
be made upon, given or furnished to, or filed with,

                  (1) the Trustee by any Holder or by the Partnership shall be
sufficient for every purpose hereunder if made in writing and actually received
by the Trustee at its office at 5847 San Felipe, Suite 1050, Houston, Texas
77057, or at any other address previously furnished in writing by the Trustee,
or

                  (2) the Partnership by the Trustee or by any Holder shall be
sufficient for every purpose hereunder (unless otherwise herein expressly
provided) if in writing and mailed, first-class postage prepaid, to the
Partnership addressed to it at One Allen Center, Suite 1000, 500 Dallas, Houston
Texas, 77002, to the attention of the Corporate Secretary, or at any other
address previously furnished in writing to the Trustee by the Partnership.

SECTION 106. Notice to Holders; Waiver

         Where this Indenture provides for notice to Holders of any event, such
notice shall be sufficiently given (unless otherwise herein expressly provided)
if in writing and mailed, first-

                                       10
<PAGE>   17

class postage prepaid (if international mail, by air mail), to each Holder
affected by such event, at his address as it appears in the Security Register,
not later than the latest date (if any), and not earlier than the earliest date
(if any), prescribed for the giving of such notice. In any case where notice to
Holders is given by mail, neither the failure to mail such notice, nor any
defect in any notice so mailed, to any particular Holder shall affect the
sufficiency of such notice with respect to other Holders. Any notice mailed to a
Holder in the manner herein prescribed shall be conclusively deemed to have been
received by such Holder, whether or not such Holder actually receives such
notice.

         Where this Indenture provides for notice in any manner, such notice may
be waived in writing by the Person entitled to receive such notice, either
before or after the event, and such waiver shall be the equivalent of such
notice. Waivers of notice by Holders shall be filed with the Trustee, but such
filing shall not be a condition precedent to the validity of any action taken in
reliance upon such waiver.

         In case by reason of the suspension of regular mail service or by
reason of any other cause it shall be impracticable to give such notice by mail,
then such notification as shall be made with the approval of the Trustee shall
constitute a sufficient notification for every purpose hereunder.

SECTION 107. Conflict with Trust Indenture Act

         If any provision hereof limits, qualifies or conflicts with a provision
of the Trust Indenture Act that is required under such Act to be a part of and
govern this Indenture, the latter provision shall control. If any provision of
this Indenture modifies or excludes any provision of the Trust Indenture Act
that may be so modified or excluded, the latter provision shall be deemed to
apply to this Indenture as so modified or excluded, as the case may be.

SECTION 108. Effect of Headings and Table of Contents

         The Article and Section headings herein and the Table of Contents are
for convenience only and shall not affect the construction hereof.

SECTION 109. Successors and Assigns

         All covenants and agreements in this Indenture by the Partnership shall
bind its successors and assigns, whether so expressed or not.

SECTION 110. Separability Clause

         In case any provision in this Indenture or in the Securities 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 111. Benefits of Indenture

         Nothing in this Indenture or in the Securities, express or implied,
shall give to any Person, other than the parties hereto and their successors
hereunder, the holders of Senior Debt and the Holders, any benefit or any legal
or equitable right, remedy or claim under this Indenture.

                                       11
<PAGE>   18

SECTION 112. Governing Law

         This Indenture and the Securities shall be governed by and construed in
accordance with the law of the State of New York.

SECTION 113. Legal Holidays

         In any case where any Interest Payment Date, Redemption Date or Stated
Maturity of any Security shall not be a Business Day at any Place of Payment,
then (notwithstanding any other provision of this Indenture or of the Securities
(other than a provision of the Securities of any series which specifically
states that such provision shall apply in lieu of this Section)) payment of
interest or principal (and premium, if any) need not be made at such Place of
Payment on such date, but may be made on the next succeeding Business Day at
such Place of Payment with the same force and effect as if made on the Interest
Payment Date or Redemption Date, or at the Stated Maturity, provided that no
interest shall accrue for the period from and after such Interest Payment Date,
Redemption Date or Stated Maturity, as the case may be.

SECTION 114. Language of Notices, Etc.

         Any request, demand, authorization, direction, notice, consent, waiver
or Act required or permitted under this Indenture shall be in the English
language, except that any published notice may be in an official language of the
country of publication.

SECTION 115. Interest Limitation

         It is the intention of the Partnership to conform strictly to all
applicable usury laws and any subsequent revisions, repeals or judicial
interpretations thereof. Accordingly, if the transactions contemplated hereby
would be usurious under any applicable law then, in that event, notwithstanding
anything to the contrary in the Securities or this Indenture, it is agreed as
follows: (i) the aggregate of all consideration which constitutes interest under
applicable law with respect to a Security shall under no circumstances exceed
the maximum amount allowed by applicable law, and any excess shall be credited
to the principal amount of such Security (or, if the principal amount of such
Security shall have been paid in full, refunded to the Partnership), to the
extent permitted by applicable law; and (ii) in the event that the maturity of
any Security is accelerated or in the event of any redemption of such Security,
then such consideration that constitutes interest under applicable law may never
include more than the maximum amount allowed by applicable law, and any excess
shall be credited to the principal amount of such Security (or, if the principal
amount of such Security shall be paid in full, refunded to the Partnership), to
the extent permitted by applicable law. All calculations made to compute the
rate of interest with respect to a Security for the purpose of determining
whether such rate exceeds the maximum amount allowed by applicable law shall be
made, to the extent permitted by such applicable law, by allocating and
spreading during the period of the full stated term of such Security all
interest any time contracted for, taken, reserved, charged or received by such
Holder or by the Trustee on behalf of any such Holder in connection therewith so
that the amount or rate of interest charged for any and all periods of time
during the term of the Security

                                       12
<PAGE>   19

does not exceed the maximum amount or rate of interest allowed to be charged by
law during the relevant period of time. Notwithstanding any of the foregoing, if
at any time applicable laws shall be changed so as to permit a higher rate or
amount of interest to be charged than that permitted prior to such change, then
unless prohibited by law, references in this Indenture or any Security to
"applicable law" when used in the context of determining the maximum interest or
rate of interest that can be charged shall be deemed to refer to such applicable
law as so amended to allow the greater amount or rate of interest.

         The right to accelerate maturity of any Security does not include the
right to accelerate any interest which has not otherwise accrued to the date of
such acceleration, provided, however, that the foregoing shall not prohibit the
continuing accrual after acceleration of interest in accordance with the terms
of the Indenture and such Security.

SECTION 116. Non-Recourse to the General Partner; No Personal Liability of
             Officers, Directors, Employees or Partners

         Obligations of the Partnership under this Indenture and the Securities
hereunder are non-recourse to the General Partner, and its respective Affiliates
(other than the Partnership), and payable only out of cash flow and assets of
the Partnership. The Trustee, and each Holder of a Security by its acceptance
thereof, will be deemed to have agreed in this Indenture that (1) neither the
General Partner nor its assets (nor any of its respective Affiliates other than
the Partnership, nor their respective assets) shall be liable for any of the
obligations of the Partnership under this Indenture or such Securities, and (2)
no director, officer, employee, stockholder or unitholder, as such, of the
Partnership, the Trustee, the General Partner or any Affiliate of any of the
foregoing entities shall have any personal liability in respect of the
obligations of the Partnership under this Indenture or such Securities by reason
of his, her or its status.

                                   ARTICLE II

                                 SECURITY FORMS

SECTION 201. Forms Generally

         The Securities of each series shall be in substantially the form set
forth in this Article, or in such other form as shall be established by or
pursuant to a Board Resolution or in one or more indentures supplemental hereto,
in each case with such appropriate insertions, omissions, substitutions and
other variations as are required or permitted by this Indenture, and may have
such letters, numbers or other marks of identification and such legends or
endorsements placed thereon as may be required to comply with applicable tax
laws or the rules of any securities exchange or automated quotation system on
which the Securities of such series may be listed or traded or Depositary
therefor or as may, consistently herewith, be determined by the officers
executing such Securities, as evidenced by their execution of the Securities. If
the form of Securities of any series is established by action taken pursuant to
a Board Resolution, a copy of an appropriate record of such action shall be
certified by an authorized officer or other authorized Person on behalf of the
Partnership and delivered to the Trustee at or prior to the delivery of the
Partnership Order contemplated by Section 303 for the authentication and
delivery of such Securities.

                                       13
<PAGE>   20

         Any form of Security approved by or pursuant to a Board Resolution must
be acceptable as to form by the Trustee, such acceptance to be evidenced by the
Trustee's authentication of Securities in that form.

         The definitive Securities shall be printed, lithographed or engraved on
steel engraved borders or may be produced in any other manner, all as determined
by the officers executing such Securities, as evidenced by their execution of
such Securities.

SECTION 202. Form of Face of Security

         [ Insert any legend required by the United States Internal Revenue Code
and the regulations thereunder.]

         [If a Global Security,--insert legend required by Section 204 of the
Indenture] [If applicable, insert--UNLESS THIS SECURITY IS PRESENTED BY AN
AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK
CORPORATION, TO THE PARTNERSHIP OR ITS AGENT FOR REGISTRATION OF TRANSFER,
EXCHANGE OR PAYMENT, AND ANY SECURITY ISSUED IS REGISTERED IN THE NAME OF CEDE &
CO. OR SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER
ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
COMPANY), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR
TO ANY PERSON IS WRONGFUL IN AS MUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO.,
HAS AN INTEREST HEREIN.]

                      KINDER MORGAN ENERGY PARTNERS, L. P.

                               [TITLE OF SECURITY]

No. _____________                                               U.S. $_________
[CUSIP No. __________]

         KINDER MORGAN ENERGY PARTNERS, L. P., a Delaware limited partnership
(herein called the "Partnership", which term includes any successor Person under
the Indenture hereinafter referred to), for value received, hereby promises to
pay to        , or registered assigns, the principal sum of               United
States Dollars on                  [if the Security is to bear interest prior to
Maturity, insert--, and to pay interest thereon from             , or from the
most recent Interest Payment Date to which interest has been paid or duly
provided for, semi-annually on              and            in each year,
commencing          , at the rate of           % per annum, until the principal
hereof is paid or made available for payment [if applicable, insert--, and at
the rate of    % per annum on any overdue principal and

                                       14
<PAGE>   21

premium and on any overdue installment of interest]. [If applicable, insert --
The amount of interest payable for any period shall be computed on the basis of
twelve 30-day months and a 360-day year. The amount of interest payable for any
partial period shall be computed on the basis of a 360-day year of twelve 30-day
months and the days elapsed in any partial month. In the event that any date on
which interest is payable on this Security is not a Business Day, then a payment
of the interest payable on such date will be made on the next succeeding day
which is a Business Day (and without any interest or other payment in respect of
any such delay) with the same force and effect as if made on the date the
payment was originally payable. A "Business Day" shall mean, when used with
respect to any Place of Payment, each Monday, Tuesday, Wednesday, Thursday and
Friday which is not a day on which banking institutions in that Place of Payment
are authorized or obligated by law, executive order or regulation to close.] The
interest so payable, and punctually paid or duly provided for, on any Interest
Payment Date will, as provided in such Indenture, be paid to the Person in whose
name this Security (or one or more Predecessor Securities) is registered at the
close of business on the Regular Record Date for such interest, which shall be
the                 or                  (whether or not a Business Day), as the
case may be, next preceding such Interest Payment Date. Any such interest not so
punctually paid or duly provided for shall forthwith cease to be payable to the
Holder on such Regular Record Date and may either be paid to the Person in whose
name this Security (or one or more Predecessor Securities) is registered at the
close of business on a Special Record Date for the payment of such Defaulted
Interest to be fixed by the Trustee, notice of which shall be given to Holders
of Securities of this series not less than 10 days prior to such Special Record
Date, or be paid at any time in any other lawful manner not inconsistent with
the requirements of any securities exchange or automated quotation system on
which the Securities of this series may be listed or traded, and upon such
notice as may be required by such exchange or automated quotation system, all as
more fully provided in such Indenture].

         [If the Security is not to bear interest prior to Maturity, insert--The
principal of this Security shall not bear interest except in the case of a
default in payment of principal upon acceleration, upon redemption or at Stated
Maturity and in such case the overdue principal of this Security shall bear
interest at the rate of       % per annum, which shall accrue from the date of
such default in payment to the date payment of such principal has been made or
duly provided for. Interest on any overdue principal shall be payable on demand.
Any such interest on any overdue principal that is not so paid on demand shall
bear interest at the rate of       % per annum, which shall accrue from the date
of such demand for payment to the date payment of such interest has been made or
duly provided for, and such interest shall also be payable on demand.]

         [If a Global Security, insert--Payment of the principal of [(and
premium, if any)] and [if applicable, insert--any such] interest on this
Security will be made by transfer of immediately available funds to a bank
account in              designated by the Holder 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 [state other currency].]

         [If a Definitive Security, insert--Payment of the principal of [(and
premium, if any)] and [if applicable, insert--any such] interest on this
Security will be made at the office or agency of the Partnership maintained for
that purpose in               , [in such coin or currency of the United States
of America as at the time of payment is legal tender for payment of public

                                       15
<PAGE>   22

and private debts] [state other currency] [or subject to any laws or regulations
applicable thereto and to the right of the Partnership (as provided in the
Indenture) to rescind the designation of any such Paying Agent, at the [main]
offices of                in                  and           in                 ,
or at such other offices or agencies as the Partnership may designate, by
[United States Dollar] [state other currency] check drawn on, or transfer to a
[United States Dollar] account maintained by the payee with, a bank in The City
of New York [ ] (so long as the applicable Paying Agent has received proper
transfer instructions in writing at least [ ] days prior to the payment date)]
[if applicable, insert--; provided, however, that payment of interest may be
made at the option of the Partnership by [United States Dollar] [state other
currency] check mailed to the addresses of the Persons entitled thereto as such
addresses shall appear in the Security Register] [or by transfer to a [United
States Dollar] [state other currency] account maintained by the payee with a
bank in The City of New York [state other Place of Payment] (so long as the
applicable Paying Agent has received proper transfer instructions in writing by
the Record Date prior to the applicable Interest Payment Date)].]

         Reference is hereby made to the further provisions of this Security set
forth on the reverse hereof, which further provisions shall for all purposes
have the same effect as if set forth at this place.

         Unless the certificate of authentication hereon has been executed by
the Trustee referred to on the reverse hereof by manual signature, this Security
shall not be entitled to any benefit under the Indenture or be valid or
obligatory for any purpose.

         IN WITNESS WHEREOF, the Partnership has caused this instrument to be
duly executed.

Dated:
                                        KINDER MORGAN ENERGY
                                           PARTNERS, L.P.,

                                        By: Kinder Morgan G.P., Inc.,
                                            Its General Partner

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

SECTION 203. Form of Reverse of Security

         This Security is one of a duly authorized issue of securities of the
Partnership (the "Securities"), issued and to be issued in one or more series
under an Indenture dated as of January 2, 2001 (the "Indenture"), between the
Partnership and First Union National Bank, as Trustee (the "Trustee", which term
includes any successor trustee under the Indenture), to which Indenture and all
indentures supplemental thereto reference is hereby made for a statement of the
respective rights, limitations of rights, obligations, duties and immunities
thereunder of the

                                       16
<PAGE>   23

Partnership, the Trustee and the Holders of the Securities and of the terms upon
which the Securities are, and are to be, authenticated and delivered. As
provided in the Indenture, the Securities may be issued in one or more series,
which different series may be issued in various aggregate principal amounts, may
mature at different times, may bear interest, if any, at different rates, may be
subject to different redemption provisions, if any, may be subject to different
sinking, purchase or analogous funds, if any, may be subject to different
covenants and Events of Default and may otherwise vary as in the Indenture
provided or permitted. This Security is one of the series designated on the face
hereof [if applicable, insert--, limited in aggregate principal amount to
U.S.$        ].

         [If applicable, insert--The Securities of this series are subject to
redemption upon not less than 30 nor more than 60 days' notice by mail, [if
applicable, insert--(1) on         in any year commencing with the year
           and ending with the year            through operation of the sinking
fund for this series at a Redemption Price equal to 100% of the principal
amount, and (2)] at any time [if applicable, insert--on or after      ,       ],
as a whole or in part, at the election of the Partnership, at the following
Redemption Prices (expressed as percentages of the principal amount): If
redeemed [if applicable, insert--on or before         ,         %, and if
redeemed] during the 12-month period beginning          of the years indicated,

<TABLE>
<CAPTION>

      YEAR           REDEMPTION PRICE         YEAR      REDEMPTION PRICE
      ----           ----------------         ----      ----------------
<S>                  <C>                      <C>       <C>

</TABLE>

and thereafter at a Redemption Price equal to     % of the principal amount,
together in the case of any such redemption [if applicable, insert--(whether
through operation of the sinking fund or otherwise)] with accrued interest to
the Redemption Date, but interest installments whose Stated Maturity is on or
prior to such Redemption Date will be payable to the Holders of such Securities,
or one or more Predecessor Securities, of record at the close of business on the
relevant Record Dates referred to on the face hereof, all as provided in the
Indenture.]

         [If applicable, insert--The Securities of this series are subject to
redemption upon not less than 30 nor more than 60 days' notice by mail, (1) on
                    in any year commencing with the year         and ending with
the year        through operation of the sinking fund for this series at the
Redemption Prices for redemption through operation of the sinking fund
(expressed as percentages of the principal amount) set forth in the table below,
and (2) at any time [if applicable, insert--on or after           ], as a whole
or in part, at the election of the Partnership, at the Redemption Prices for
redemption otherwise than through operation of the sinking fund (expressed as
percentages of the principal amount) set forth in the table below: If redeemed
during the 12-month period beginning         of the years indicated,

                                       17
<PAGE>   24

<TABLE>
<CAPTION>
                                 REDEMPTION PRICE FOR         REDEMPTION PRICE FOR
                                  REDEMPTION THROUGH          REDEMPTION OTHERWISE
                               OPERATION OF THE SINKING      THAN THROUGH OPERATION
     YEAR                                FUND                  OF THE SINKING FUND
     ----                      ------------------------      ----------------------
<S>                            <C>                           <C>

</TABLE>

and thereafter at a Redemption Price equal to         % of the principal amount,
together in the case of any such redemption (whether through operation of the
sinking fund or otherwise) with accrued interest to the Redemption Date, but
interest installments whose Stated Maturity is on or prior to such Redemption
Date will be payable to the Holders of such Securities, or one or more
Predecessor Securities, of record at the close of business on the relevant
Record Dates referred to on the face hereof, all as provided in the Indenture.]

         [If applicable, insert--The sinking fund for this series provides for
the redemption on             in each year beginning with the year    and ending
with the year       of [if applicable,--not less than $          ("mandatory
sinking fund") and not more than] $          aggregate principal amount of
Securities of this series. Securities of this series acquired or redeemed by the
Partnership otherwise than through [if applicable,--mandatory] sinking fund
payments may be credited against subsequent [if applicable,--mandatory] sinking
fund payments otherwise required to be made [if applicable,--in the inverse
order in which they become due].]

         [If the Security is subject to redemption in part of any kind,
insert--In the event of redemption of this Security in part only, a new Security
or Securities of this series and of like tenor for the unredeemed portion hereof
will be issued in the name of the Holder hereof upon the cancellation hereof.]

         [If applicable, insert--The Securities of this series are not
redeemable prior to Stated Maturity.]

         [If the Security is not an Original Issue Discount Security, insert--If
an Event of Default with respect to Securities of this series shall occur and be
continuing, the principal of the Securities of this series may be declared due
and payable in the manner and with the effect provided in the Indenture.]

         [If the Security is an Original Issue Discount Security, insert--If an
Event of Default with respect to Securities of this series shall occur and be
continuing, an amount of principal of the Securities of this series may be
declared due and payable in the manner and with the effect provided in the
Indenture. Such amount shall be equal to--insert formula for determining the
amount. Upon payment (1) of the amount of principal so declared due and payable,
and (2) of interest on any overdue principal and overdue interest, all of the
Partnership's obligations in respect of the payment of the principal of and
interest, if any, on the Securities of this series shall terminate.]

                                       18
<PAGE>   25

         The Indenture permits, with certain exceptions as therein provided, the
amendment thereof and the modification of the rights and obligations of the
Partnership and the rights of the Holders of the Securities of each series to be
affected under the Indenture at any time by the Partnership and the Trustee with
the consent of not less than the Holders of a majority in aggregate principal
amount of the Outstanding Securities of all series to be affected (voting as one
class). The Indenture also contains provisions permitting the Holders of a
majority in aggregate principal amount of the Outstanding Securities of all
affected series (voting as one class), on behalf of the Holders of all
Securities of such series, to waive compliance by the Partnership with certain
provisions of the Indenture. The Indenture permits, with certain exceptions as
therein provided, the Holders of a majority in principal amount of Securities of
any series then Outstanding to waive past defaults under the Indenture with
respect to such series and their consequences. Any such consent or waiver by the
Holder of this Security shall be conclusive and binding upon such Holder and
upon all future Holders of this Security and of any Security issued upon the
registration of transfer hereof or in exchange herefor or in lieu hereof,
whether or not notation of such consent or waiver is made upon this Security.

         As provided in and subject to the provisions of the Indenture, the
Holder of this Security shall not have the right to institute any proceeding
with respect to the Indenture or for the appointment of a receiver or trustee or
for any other remedy thereunder, unless such Holder shall have previously given
the Trustee written notice of a continuing Event of Default with respect to the
Securities of this series, the Holders of not less than 25% in principal amount
of the Securities of this series at the time Outstanding shall have made written
request to the Trustee to institute proceedings in respect of such Event of
Default as Trustee and offered the Trustee reasonable indemnity and the Trustee
shall not have received from the Holders of a majority in principal amount of
Securities of this series at the time Outstanding a direction inconsistent with
such request, and shall have failed to institute any such proceeding, for 60
days after receipt of such notice, request and offer of indemnity. The foregoing
shall not apply to any suit instituted by the Holder of this Security for the
enforcement of any payment of principal hereof or [any premium or] interest
hereon on or after the respective due dates expressed herein.

         No reference herein to the Indenture and no provision of this Security
or of the Indenture shall, without the consent of the Holder, alter or impair
the obligation of the Partnership, which is absolute and unconditional, to pay
the principal of and [any premium and] interest on this Security at the times,
place(s) and rate, and in the coin or currency, herein prescribed, except for
Section 115 of the Indenture (which limits interest to the maximum amount
permissible by law), the provisions of which are incorporated herein by
reference.

         [If a Global Security, insert--This Global Security or portion hereof
may not be exchanged for Definitive Securities of this series except in the
limited circumstances provided in the Indenture.

         The holders of beneficial interests in this Global Security will not be
entitled to receive physical delivery of Definitive Securities except as
described in the Indenture and will not be considered the Holders thereof for
any purpose under the Indenture.]

         [If a Definitive Security, insert--As provided in the Indenture and
subject to certain limitations therein set forth, the transfer of this Security
is registerable in the Security Register,

                                       19
<PAGE>   26

upon surrender of this Security for registration of transfer at the office or
agency of the Partnership in [if applicable, insert -- any place where the
principal of and any premium and interest on this Security are payable] [if
applicable, insert -- The City of New York [, or, subject to any laws or
regulations applicable thereto and to the right of the Partnership (limited as
provided in the Indenture) to rescind the designation of any such transfer
agent, at the [main] offices of              in             and in
or at such other offices or agencies as the Partnership may designate]], duly
endorsed by, or accompanied by a written instrument of transfer in form
satisfactory to the Partnership and the Security Registrar duly executed by, the
Holder hereof or his attorney duly authorized in writing, and thereupon one or
more new Securities of this series and of like tenor, of authorized
denominations and for the same aggregate principal amount, will be issued to the
designated transferee or transferees.]

         The Securities of this series are issuable only in registered form
without coupons in denominations of U.S.$         [state other currency] and any
integral multiple thereof. As provided in the Indenture and subject to certain
limitations therein set forth, Securities of this series are exchangeable for a
like aggregate principal amount of Securities of this series and of like tenor
of a different authorized denomination, as requested by the Holder surrendering
the same.

         No service charge shall be made for any such registration of transfer
or exchange, but the Partnership may require payment of a sum sufficient to
cover any tax or other governmental charge payable in connection therewith.

         Prior to due presentment of this Security for registration of transfer,
the Partnership, the Trustee and any agent of the Partnership or the Trustee may
treat the Person in whose name this Security is registered as the owner hereof
for all purposes, whether or not this Security is overdue, and neither the
Partnership, the Trustee nor any such agent shall be affected by notice to the
contrary.

         This Security is subordinated in right of payment to Senior Debt, to
the extent provided in the Indenture.

         Obligations of the Partnership under the Indenture and the Securities
thereunder, including this Security, are non-recourse to Kinder Morgan, G.P.,
Inc. (the "General Partner") and its Affiliates (other than the Partnership),
and payable only out of cash flow and assets of the Partnership. The Trustee,
and each Holder of a Security by its acceptance hereof, will be deemed to have
agreed in the Indenture that (1) neither the General Partner nor its assets (nor
any of its Affiliates other than the Partnership, nor their respective assets)
shall be liable for any of the obligations of the Partnership under the
Indenture or such Securities, including this Security, and (2) no director,
officer, employee, stockholder or unitholder, as such, of the Partnership, the
Trustee, the General Partner or any Affiliate of any of the foregoing entities
shall have any personal liability in respect of the obligations of the
Partnership under the Indenture or such Securities by reason of his, her or its
status.

         The Indenture contains provisions that relieve the Partnership from the
obligation to comply with certain restrictive covenants in the Indenture and for
satisfaction and discharge at

                                       20
<PAGE>   27

any time of the entire indebtedness upon compliance by the Partnership with
certain conditions set forth in the Indenture.

         This Security shall be governed by and construed in accordance with the
laws of the State of New York.

         All terms used in this Security which are defined in the Indenture
shall have the meanings assigned to them in the Indenture.

         [If a Definitive Security, insert as a separate page--

         FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and
transfer(s) unto _____________________________________ (Please Print or
Typewrite Name and Address of Assignee) the within instrument of KINDER MORGAN
ENERGY PARTNERS, L. P. and does hereby irrevocably constitute and appoint
________________________ Attorney to transfer said instrument on the books of
the within-named Partnership, with full power of substitution in the premises.

Please Insert Social Security or
Other Identifying Number of Assignee:

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

Dated:                                                               (Signature)
      -----------------------           -----------------------------

Signature Guarantee:
                    -----------------------------------------
                    (Participant in a Recognized Signature
                    Guaranty Medallion Program)

         NOTICE: The signature to this assignment must correspond with the name
as written upon the face of the within instrument in every particular, without
alteration or enlargement or any change whatever.]

SECTION 204. Global Securities

         Every Global Security authenticated and delivered hereunder shall bear
a legend in substantially the following form:

          THIS SECURITY IS A GLOBAL SECURITY WITHIN THE
          MEANING OF THE INDENTURE HEREINAFTER REFERRED TO
          AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A
          NOMINEE THEREOF. THIS SECURITY MAY NOT BE
          TRANSFERRED TO, OR REGISTERED OR EXCHANGED FOR
          SECURITIES REGISTERED IN THE NAME OF, ANY PERSON
          OTHER THAN THE DEPOSITARY OR A NOMINEE THEREOF AND
          NO SUCH TRANSFER MAY BE REGISTERED, EXCEPT IN THE
          LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE.
          EVERY SECURITY

                             21
<PAGE>   28

          AUTHENTICATED       AND       DELIVERED      UPON
          REGISTRATION OF TRANSFER OF, OR IN EXCHANGE FOR OR
          IN LIEU OF, THIS SECURITY SHALL BE A GLOBAL
          SECURITY SUBJECT TO THE FOREGOING, EXCEPT IN SUCH
          LIMITED CIRCUMSTANCES.

         If Securities of a series are issuable in whole or in part in the form
of one or more Global Securities, as contemplated by Section 301, then,
notwithstanding Clause (9) of Section 301 and the provisions of Section 302, any
Global Security shall represent such of the Outstanding Securities of such
series as shall be specified therein and may provide that it shall represent the
aggregate amount of Outstanding Securities from time to time endorsed thereon
and that the aggregate amount of Outstanding Securities represented thereby may
from time to time be reduced or increased, as the case may be, to reflect
exchanges. Any endorsement of a Global Security to reflect the amount, or any
reduction or increase in the amount, of Outstanding Securities represented
thereby shall be made in such manner and upon instructions given by such Person
or Persons as shall be specified therein or in a Partnership Order. Subject to
the provisions of Sections 303, 304 and 305, the Trustee shall deliver and
redeliver any Global Security in the manner and upon instructions given by the
Person or Persons specified therein or in the applicable Partnership Order. Any
instructions by the Partnership with respect to endorsement or delivery or
redelivery of a Global Security shall be in a Partnership Order (which need not
comply with Section 102 and need not be accompanied by an Opinion of Counsel).

         The provisions of the last sentence of Section 303 shall apply to any
Security represented by a Global Security if such Security was never issued and
sold by the Partnership and the Partnership delivers to the Trustee the Global
Security together with a Partnership Order (which need not comply with Section
102 and need not be accompanied by an Opinion of Counsel) with regard to the
reduction or increase, as the case may be, in the principal amount of Securities
represented thereby, together with the written statement contemplated by the
last sentence of Section 303.

SECTION 205. Form of Trustee's Certificate and Authorization

         The Trustee's certificates of authentication shall be in substantially
the following form:

         This is one of the Securities of the series designated therein referred
to in the within-mentioned Indenture.

                                     FIRST UNION NATIONAL BANK,
                                             As Trustee

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

                                       22
<PAGE>   29

                                   ARTICLE III

                                   SECURITIES

SECTION 301. Amount Unlimited; Issuable in Series

         The aggregate principal amount of Securities which may be authenticated
and delivered under this Indenture is unlimited.

         The Securities may be issued in one or more series. There shall be
established in or pursuant to a Board Resolution (and, subject to Section 303,
to the extent established pursuant to rather than set forth in a Board
Resolution, in an Officers' Certificate or Partnership Order setting forth, or
determining the manner of, such establishment) or established in one or more
indentures supplemental hereto, prior to the issuance of Securities of any
series,

                  (1) the form and title of the Securities of the series (which
shall distinguish the Securities of the series from Securities of any other
series);

                  (2) any limit upon the aggregate principal amount of the
Securities of the series which may be authenticated and delivered under this
Indenture (except for Securities authenticated and delivered upon registration
of transfer of, or in exchange for, or in lieu of, other Securities of the
series pursuant to Section 304, 305, 306, 906 or 1107 and except for any
Securities which, pursuant to Section 303, are deemed never to have been
authenticated and delivered hereunder);

                  (3) the Person to whom any interest on a Security of the
series shall be payable, if other than the Person in whose name that Security
(or one or more Predecessor Securities) is registered at the close of business
on the Regular Record Date for such interest;

                  (4) the date or dates on which the Securities will be issued
and on which the principal of, and premium, if any, on the Securities of the
series is payable or the method of determination thereof;

                  (5) the rate or rates (which may be fixed or variable) at
which the Securities of the series shall bear interest, if any, or the method of
determination thereof, the date or dates from which such interest shall accrue,
or the method of determination thereof, the Interest Payment Dates on which any
such interest shall be payable and the Regular Record Date for any interest
payable on any Interest Payment Date;

                  (6) the place or places where, subject to the provisions of
Section 1002, the principal of and any premium and interest on Securities of the
series shall be payable, Securities of the series may be surrendered for
registration of transfer, Securities of the series may be surrendered for
exchange and notices, and demands to or upon the Partnership in respect of the
Securities of the series and this Indenture may be served;

                                       23
<PAGE>   30

                  (7) the period or periods, if any, within which, the price or
prices at which and the terms and conditions upon which Securities of the series
may be redeemed, in whole or in part, at the option of the Partnership or
otherwise if the Partnership is to have that option;

                  (8) the obligation, if any, and the option, if any, of the
Partnership to redeem, purchase or repay Securities of the series pursuant to
any sinking fund or analogous provisions or upon the happening of a specified
event or at the option of a Holder thereof and the period or periods within
which, the price or prices at which and the terms and conditions upon which
Securities of the series shall be redeemed, purchased or repaid, in whole or in
part, pursuant to such obligation;

                  (9) if other than denominations of $1,000 and any integral
multiple thereof, the denominations in which Securities of the series shall be
issuable;

                  (10) whether payment of principal of and premium, if any, and
interest, if any, on the Securities of the series shall be without deduction for
taxes, assessments or governmental charges paid by Holders of the series;

                  (11) the currency, currencies or currency units in which
payment of the principal of and any premium and interest on any Securities of
the series shall be denominated, payable, redeemable or purchasable if other
than the currency of the United States of America and the manner of determining
the equivalent thereof in the currency of the United States of America for
purposes of the definition of "Outstanding" in Section 101;

                  (12) if the amount of payments of principal of or any premium
or interest on any Securities of the series may be determined with reference to
an index, the manner in which such amounts shall be determined;

                  (13) if the principal of or any premium or interest on any
Securities of the series is to be payable, at the election of the Partnership or
a Holder thereof, in one or more currencies or currency units other than that or
those in which the Securities are stated to be payable, the currency, currencies
or currency units in which payment of the principal of and any premium and
interest on Securities of such series as to which such election is made shall be
payable, and the periods within which and the terms and conditions upon which
such election is to be made;

                  (14) the right, if any, of the Partnership to defer payments
of interest by extending the interest payment periods and specify the duration
of such extension, the Interest Payment Dates on which such interest shall be
payable and whether and under what circumstances additional interest on amounts
deferred shall be payable;

                  (15) if other than the principal amount thereof, the portion
of the principal amount of Securities of the series which shall be payable upon
declaration of acceleration of the Maturity thereof pursuant to Section 502 or
provable in bankruptcy pursuant to Section 504 the method of determination
thereof;

                                       24
<PAGE>   31

                  (16) if and as applicable, that the Securities of the series
shall be issuable in whole or in part in the form of one or more Global
Securities (and whether in temporary or permanent global form) and, in such
case, the Depositary or Depositaries for such Global Security or Global
Securities and any circumstances other than those set forth in Section 305 in
which any such Global Security may be transferred to, and registered and
exchanged for Securities registered in the name of, a Person other than the
Depositary for such Global Security or a nominee thereof and in which any such
transfer may be registered;

                  (17) any deletions from, modifications of or additions to the
Events of Default set forth in Section 501 or the covenants of the Partnership
set forth in Article X pertaining to the Securities of the series;

                  (18) if and the terms and conditions upon which any Securities
of the series may be converted into or exchanged for securities, which may
include, without limitation, capital stock, of any class or series of the
Partnership or any other issuer;

                  (19) if the amount of payments of principal of or any premium
or interest on any Securities of the series may be determined with reference to
an index, including, but not limited to an index based on a currency or
currencies other than that in which the Securities of that series are payable,
or any other type of index, the manner in which such amounts shall be
determined;

                  (20) if other than as provided in Sections 1302 and 1303, the
terms and conditions upon which and the manner in which such series of
Securities may be defeased or discharged;

                  (21) if other than the Trustee, the identity of the Security
Registrar and any Paying Agent;

                  (22) any restrictions or other provisions with respect to the
transfer or exchange of the Securities; and

                  (23) any other terms of the Securities of the series (which
terms shall not be inconsistent with the provisions of this Indenture, except as
permitted by Section 901(5)).

         All Securities of any one series shall be substantially identical
except as to denomination and except as may otherwise be provided in or pursuant
to the Board Resolution or Officers' Certificate referred to above or in any
such indenture supplemental hereto.

         Any such Board Resolution or Officers' Certificate referred to above
with respect to Securities of any series filed with the Trustee on or before the
initial issuance of the Securities of such series shall be incorporated herein
by reference with respect to Securities of such series and shall thereafter be
deemed to be a part of the Indenture for all purposes relating to Securities of
such series as fully as if such Board Resolution or Officers' Certificate were
set forth herein in full.

                                       25
<PAGE>   32

         All Securities of any one series need not be issued at the same time
and, unless otherwise provided, a series may be reopened, without the consent of
the Holders, for increases in the aggregate principal amount of such series of
Securities and issuances of additional Securities of such series or for the
establishment of additional terms with respect to the Securities of such series.

         If any of the terms of the series are established by action taken by or
pursuant to a Board Resolution, a copy of an appropriate record of such action
shall be certified by an authorized officer or other authorized person of the
General Partner on behalf of the Partnership and delivered to the Trustee at or
prior to the delivery of the Officers' Certificate setting forth, or providing
the manner for determining, the terms of the series.

         With respect to Securities of a series subject to a Periodic Offering,
such Board Resolution or Officers' Certificate may provide general terms for
Securities of such series and provide either that the specific terms of
particular Securities of such series shall be specified in a Partnership Order,
or that such terms shall be determined by the Partnership, or one or more of the
Partnership's agents designated in an Officers' Certificate, in accordance with
a Partnership Order.

SECTION 302. Denominations

         The Securities of each series shall be issuable only in registered form
without coupons in such denominations as shall be specified as contemplated by
Section 301. In the absence of any such specified denomination with respect to
the Securities of any series, the Securities of such series shall be issuable in
denominations of $1,000 and any integral multiple thereof.

SECTION 303. Execution, Authentication, Delivery and Dating

         The Securities shall be executed on behalf of the Partnership by the
Chairman of the Board, Vice Chairman, Chief Executive Officer, Chief Financial
Officer, President or any Vice President of the General Partner and need not be
attested. The signature of any of these officers on the Securities may be manual
or facsimile.

         Securities bearing the manual or facsimile signatures of individuals
who were at any time the proper officers of the General Partner shall bind the
Partnership, notwithstanding that such individuals or any of them have ceased to
hold such offices prior to the authentication and delivery of such Securities or
did not hold such offices at the date of such Securities.

         At any time and from time to time after the execution and delivery of
this Indenture, the Partnership may deliver Securities of any series executed by
the Partnership to the Trustee for authentication, together with a Partnership
Order for the authentication and delivery of such Securities, and the Trustee in
accordance with the Partnership Order shall authenticate and deliver such
Securities; provided, however, that in the case of Securities offered in a
Periodic Offering, the Trustee shall authenticate and deliver such Securities
from time to time in accordance with such other procedures (including, without
limitation, the receipt by the Trustee of oral or electronic instructions from
the Partnership or its duly authorized agents, thereafter promptly confirmed in
writing) acceptable to the Trustee as may be specified by or pursuant to a
Partnership Order delivered to the Trustee prior to the time of the first
authentication of

                                       26
<PAGE>   33

Securities of such series. If the form or terms of the Securities of the series
have been established in or pursuant to one or more Board Resolutions as
permitted by Sections 201 and 301, in authenticating such Securities, and
accepting the additional responsibilities under this Indenture in relation to
such Securities, the Trustee shall be entitled to receive, in addition to any
Officers' Certificate and Opinion of Counsel required to be furnished to the
Trustee pursuant to Section 102, and (subject to Section 601) shall be fully
protected in relying upon, an Opinion of Counsel stating,

                  (1) the form and terms (or the manner of determining the
terms) of such Securities have been established by or pursuant to Board
Resolution as permitted by Section 201, that such form or forms have been
established in conformity with the provisions of this Indenture;

                  (2) if the terms of such Securities have been, or in the case
of Securities of a series offered in a Periodic Offering, will be, established
by or pursuant to a Board Resolution as permitted by Section 301, that such
terms have been, or in the case of Securities of a series offered in a Periodic
Offering, will be, established in conformity with the provisions of this
Indenture, subject, in the case of Securities of a series offered in a Periodic
Offering, to any conditions specified in such Opinion of Counsel (which
conditions are reasonably acceptable to the Trustee); and

                  (3) that such Securities, when authenticated and delivered by
the Trustee and issued by the Partnership in the manner and subject to any
conditions specified in such Opinion of Counsel, which conditions are reasonably
acceptable to the Trustee, will constitute valid and legally binding obligations
of the Partnership enforceable in accordance with their terms, subject to
bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and
similar laws of general applicability relating to or affecting creditors' rights
and to general equity principles and entitled to the benefits of this Indenture,
equally and ratably with all other Securities, if any, of such series
outstanding; and

                  (4) such other matters as the Trustee may reasonably request;

and, if the authentication and delivery relates to a new series of Securities
created by an indenture supplemental hereto, also stating that all conditions
precedent to the execution of the supplemental indenture with respect to that
series of Securities have been complied with, the Partnership has the power to
execute and deliver any such supplemental indenture and has taken all necessary
action for those purposes and any such supplemental indenture has been executed
and delivered and constitutes the legal, valid and binding obligation of the
Partnership enforceable in accordance with its terms (subject, as to enforcement
of remedies, to applicable bankruptcy, reorganization, insolvency, fraudulent
conveyance, moratorium or other laws and legal principles affecting creditors'
rights generally from time to time in effect and to general equitable
principles, whether applied in an action at law or in equity).

         If such form or forms or terms have been so established, the Trustee
shall not be required to authenticate such Securities if the issue of such
Securities pursuant to this Indenture will affect the Trustee's own rights,
duties or immunities under the Securities and this Indenture or otherwise in a
manner which is not reasonably acceptable to the Trustee.

                                       27
<PAGE>   34

         Notwithstanding the provisions of Section 301 and of the preceding
paragraph, if all Securities of a series are not to be originally issued at one
time, it shall not be necessary to deliver the Officers' Certificate otherwise
required pursuant to Section 301 or the Partnership Order and Opinion of Counsel
or Board Resolution or supplemental indenture otherwise required pursuant to
such preceding paragraph at or prior to the time of authentication of each
Security of such series if such documents are delivered at or prior to the
authentication upon original issuance of the first Security of such series to be
issued.

         With respect to Securities of a series not to be originally issued at
one time, the Trustee may rely upon the Opinion of Counsel and the other
documents delivered pursuant to Sections 201 and 301 and this Section, as
applicable, in connection with the first authentication of Securities of such
series and any subsequent request by the Partnership to the Trustee to
authenticate Securities of such series upon original issuance shall constitute a
representation and warranty by the Partnership that as of the date of such
request, the statements made in the Officers' Certificate shall be true and
correct as if made on such date.

         Each Security shall be dated the date of its authentication.

         No Security shall be entitled to any benefit under this Indenture or be
valid or obligatory for any purpose unless there appears on such Security a
certificate of authentication substantially in the form provided for herein
executed by the Trustee by manual signature of an authorized signatory, and such
certificate upon any Security shall be conclusive evidence, and the only
evidence, that such Security has been duly authenticated and delivered hereunder
and is entitled to the benefits of this Indenture. Notwithstanding the
foregoing, if any Security shall have been authenticated and delivered hereunder
but never issued and sold by the Partnership, and the Partnership shall deliver
such Security to the Trustee for cancellation as provided in Section 309 for all
purposes of this Indenture, such Security shall be deemed never to have been
authenticated and delivered hereunder and shall never be entitled to the
benefits of this Indenture.

SECTION 304. Temporary Securities

         Pending the preparation of Definitive Securities of any series, the
Partnership may execute, and upon receipt of the documents required by Section
303, together with a Partnership Order the Trustee shall authenticate and
deliver, temporary Securities which are printed, lithographed, typewritten,
mimeographed or otherwise produced, in any authorized denomination,
substantially of the tenor of the Definitive Securities of like series in lieu
of which they are issued and with such appropriate insertions, omissions,
substitutions and other variations as the officers executing such Securities may
determine, as evidenced by their execution of such Securities.

         If temporary Securities of any series are issued, the Partnership will
cause Definitive Securities of that series to be prepared without unreasonable
delay. After the preparation of Definitive Securities of such series, the
temporary Securities of such series shall be exchangeable for Definitive
Securities of such series upon surrender of the temporary Securities of such
series at the office or agency of the Partnership maintained pursuant to Section
1002 for the purpose of exchanges of Securities of such series, without charge
to the Holder. Upon surrender for

                                       28
<PAGE>   35

cancellation of any one or more temporary Securities of any series the
Partnership shall execute and the Trustee shall authenticate and deliver in
exchange therefor one or more Definitive Securities of the same series, of any
authorized denominations and of a like aggregate principal amount and tenor.
Until so exchanged the temporary Securities of any series shall in all respects
be entitled to the same benefits under this Indenture as Definitive Securities
of such series and tenor.

SECTION 305. Registration, Registration of Transfer and Exchange

         The Partnership shall cause to be kept at an office or agency of the
Security Registrar in The City of New York a register (the register maintained
in such office or in any other office or agency of the Partnership in a Place of
Payment being herein sometimes referred to as the "Security Register") in which,
subject to such reasonable regulations as it may prescribe, the Partnership
shall provide for the registration of Securities and of transfers of Securities.
The Partnership shall, prior to the issuance of any Securities hereunder,
appoint the Trustee as the initial "Security Registrar" for the purpose of
registering Securities and transfers of Securities as herein provided and its
Corporate Trust Office which, at the date hereof, is located at 40 Broad Street,
Suite 550, New York, New York 10004, as the initial office or agency in The City
of New York where the Security Register will be maintained. The Partnership may
at any time replace such Security Registrar, change such office or agency or act
as its own Security Registrar. The Partnership will give prompt written notice
to the Trustee of any change of the Security Registrar or of the location of
such office or agency. At all reasonable times the Security Register shall be
available for inspection by the Trustee.

         Upon surrender for registration of transfer of any Security of any
series at the office or agency of the Partnership maintained pursuant to Section
1002 for such purpose, the Partnership shall execute, and the Trustee shall
authenticate and deliver, in the name of the designated transferee or
transferees, one or more new Securities of the same series, of any authorized
denominations and of a like aggregate principal amount and tenor.

         At the option of the Holder, Securities of any series (except a Global
Security) may be exchanged for other Securities of the same series, of any
authorized denominations and of a like aggregate principal amount and tenor,
upon surrender of the Securities to be exchanged at such office or agency.
Whenever any Securities are so surrendered for exchange, the Partnership shall
execute, and the Trustee shall authenticate and deliver, the Securities which
the Holder making the exchange is entitled to receive.

         All Securities issued upon any registration of transfer or exchange of
Securities shall be the valid obligations of the Partnership, evidencing the
same debt, and entitled to the same benefits under this Indenture, as the
Securities surrendered upon such registration of transfer or exchange.

         Every Security presented or surrendered for registration of transfer or
for exchange shall (if so required by the Partnership or the Trustee) be duly
endorsed, or be accompanied by a written instrument of transfer in form
satisfactory to the Partnership and the Security Registrar duly executed, by the
Holder thereof or his attorney duly authorized in writing.

                                       29
<PAGE>   36

         No service charge shall be made for any registration of transfer or
exchange of Securities, but the Partnership may require payment of a sum
sufficient to cover any tax or other governmental charge that may be imposed in
connection with any registration of transfer or exchange of Securities, other
than exchanges pursuant to Section 304 or 1107 not involving any transfer.

         Neither the Trustee nor the Partnership shall be required (1) to issue,
register the transfer of or exchange Securities of any series (or of any series
and specified tenor, as the case may be) during a period beginning at the
opening of business 15 days before the day of mailing of a notice of redemption
of Securities of that series selected for redemption under Section 1103 and
ending at the close of business on the day of such mailing, or (2) to register
the transfer of or exchange any Security so selected for redemption in whole or
in part, except the unredeemed portion of any Security being redeemed in part.

         Notwithstanding any other provision in this Indenture and except as
otherwise specified as contemplated by Section 301, no Global Security may be
transferred to, or registered or exchanged for Securities registered in the name
of, any Person other than the Depositary for such Global Security or any nominee
thereof, and no such transfer may be registered, except as provided in this
paragraph. Every Security authenticated and delivered upon registration or
transfer of, or in exchange for or in lieu of, a Global Security shall be a
Global Security, except as provided in this paragraph. If (1) (A) the Depositary
for a Global Security notifies the Partnership that it is unwilling or unable to
continue as Depositary for such Global Security or ceases to be a clearing
agency registered under the Exchange Act, and (B) a successor Depositary is not
appointed by the Partnership within 90 days, (2) an Event of Default has
occurred and is continuing with respect to the Securities of such series and the
Security Registrar has received a request from the Depositary to issue
certificated securities in lieu of all or a portion of the Global Securities of
such series (in which case the Partnership shall deliver certificated securities
within 30 days of such request) or (3) the Partnership determines in its sole
discretion that Securities of a series issued in global form shall no longer be
represented by a Global Security, then such Global Security may be exchanged by
such Depositary for Definitive Securities of the same series, of any authorized
denomination and of a like aggregate principal amount and tenor, registered in
the names of, and the transfer of such Global Security or portion thereof may be
registered to, such Persons as such Depositary shall direct.

SECTION 306. Mutilated, Destroyed, Lost and Stolen Securities

         If any mutilated Security is surrendered to the Trustee, together with
such security or indemnity as may be required by the Partnership or the Trustee
to save each of them and any agent of either of them harmless, the Partnership
shall execute and upon its request the Trustee shall authenticate and deliver in
exchange therefor a new Security of the same series and of like tenor and
principal amount and bearing a number not contemporaneously Outstanding.

         If there shall be delivered to the Partnership and the Trustee (1)
evidence to their satisfaction of the destruction, loss or theft of any Security
and (2) such security or indemnity as may be required by them to save each of
them and any agent of either of them harmless, then, in the absence of notice to
the Partnership or the Trustee that such Security has been acquired by a bona
fide purchaser, the Partnership shall execute and upon its request the Trustee
shall

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<PAGE>   37

authenticate and deliver, in lieu of any such destroyed, lost or stolen
Security, a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously Outstanding. If, after the
delivery of such new Security, a bona fide purchaser of the original Security in
lieu of which such new Security was issued presents for payment or registration
such original Security, the Trustee shall be entitled to recover such new
Security from the party to whom it was delivered or any party taking therefrom,
except a bona fide purchaser, and shall be entitled to recover upon the security
or indemnity provided therefor to the extent of any loss, damage, cost or
expense incurred by the Partnership and the Trustee in connection therewith.

         In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, the Partnership in its discretion
may, instead of issuing a new Security, pay such Security.

         Upon the issuance of any new Security under this Section, the
Partnership may require the payment of a sum sufficient to cover any tax or
other governmental charge that may be imposed in relation thereto and any other
expenses (including the fees and expenses of the Trustee) connected therewith.

         Every new Security of any series issued pursuant to this Section in
exchange for any mutilated Security or in lieu of any destroyed, lost or stolen
Security shall constitute an original additional contractual obligation of the
Partnership, whether or not the mutilated, destroyed, lost or stolen Security
shall be at any time enforceable by anyone, and shall be entitled to all the
benefits of this Indenture equally and proportionately with any and all other
Securities of that series duly issued hereunder.

         The provisions of this Section are exclusive and shall preclude (to the
extent lawful) all other rights and remedies with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities.

SECTION 307. Payment of Interest; Interest Rights Preserved

         Except as otherwise provided as contemplated by Section 301 with
respect to any series of Securities, interest on any Security which is payable,
and is punctually paid or duly provided for, on any Interest Payment Date shall
be paid to the Person in whose name that Security (or one or more Predecessor
Securities) is registered at the close of business on the Regular Record Date
for such interest.

         Any interest on any Security of any series which is payable, but is not
punctually paid or duly provided for, on any Interest Payment Date (herein
called "Defaulted Interest") shall forthwith cease to be payable to the Holder
on the relevant Regular Record Date by virtue of having been such Holder, and
such Defaulted Interest may be paid by the Partnership, at its election in each
case, as provided in Clause (1) or (2) below:

                  (1) The Partnership may elect to make payment of any Defaulted
Interest to the Persons in whose names the Securities of such series (or their
respective Predecessor Securities) are registered at the close of business on a
Special Record Date for the payment of such Defaulted Interest, which shall be
fixed in the following manner. The Partnership shall

                                       31
<PAGE>   38

notify the Trustee in writing of the amount of Defaulted Interest proposed to be
paid on each Security of such series and the date of the proposed payment, and
at the same time the Partnership shall deposit with the Trustee an amount of
money equal to the aggregate amount proposed to be paid in respect of such
Defaulted Interest or shall make arrangements satisfactory to the Trustee for
such deposit prior to the date of the proposed payment, such money when
deposited to be held in trust for the benefit of the Persons entitled to such
Defaulted Interest as in this Clause provided. Thereupon the Trustee shall fix a
Special Record Date for the payment of such Defaulted Interest which shall be
not more than 15 days and not less than 10 days prior to the date of the
proposed payment and not less than 10 days after the receipt by the Trustee of
the notice of the proposed payment. The Trustee shall promptly notify the
Partnership of such Special Record Date and, in the name and at the expense of
the Partnership, shall cause notice of the proposed payment of such Defaulted
Interest and the Special Record Date therefor to be mailed, first-class postage
prepaid, to each Holder of Securities of such series at his address as it
appears in the Security Register, not less than 10 days prior to such Special
Record Date. Notice of the proposed payment of such Defaulted Interest and the
Special Record Date therefor having been so mailed, such Defaulted Interest
shall be paid to the Persons in whose names the Securities of such series (or
their respective Predecessor Securities) are registered at the close of business
on such Special Record Date and shall no longer be payable pursuant to the
following Clause (2).

                  (2) The Partnership may make payment of any Defaulted Interest
on the Securities of any series in any other lawful manner not inconsistent with
the requirements of any securities exchange or automated quotation system on
which such Securities may be listed or traded, and upon such notice as may be
required by such exchange, if, after notice given by the Partnership to the
Trustee of the proposed payment pursuant to this Clause, such manner of payment
shall be deemed practicable by the Trustee.

         Subject to the foregoing provisions of this Section and Section 305,
each Security delivered under this Indenture upon registration of transfer of or
in exchange for or in lieu of any other Security, shall carry the rights to
interest accrued and unpaid, and to accrue, which were carried by such other
Security.

         For each series of Securities, the Partnership shall, prior to 10:30
a.m. (New York City time) on each payment date for principal and premium, if
any, and interest, if any, deposit with the Trustee money in immediately
available funds sufficient to make cash payments due on the applicable payment
date.

SECTION 308. Persons Deemed Owners

         Except as otherwise provided as contemplated by Section 301 with
respect to any series of Securities, prior to due presentment of a Security for
registration of transfer, the Partnership, the Trustee and any agent of the
Partnership or the Trustee may treat the Person in whose name such Security is
registered as the owner of such Security for the purpose of receiving payment of
principal of and any premium and (subject to Sections 305 and 307) any interest
on such Security and for all other purposes whatsoever, whether or not such
Security is overdue, and neither the Partnership, the Trustee nor any agent of
the Partnership or the Trustee shall be affected by notice to the contrary.

                                       32
<PAGE>   39

         No holder of any beneficial interest in any Global Security held on its
behalf by a Depositary shall have any rights under this Indenture with respect
to such Global Security, and such Depositary may be treated by the Partnership,
the Trustee and any agent of the Partnership or the Trustee as the owner of such
Global Security for all purposes whatsoever. None of the Partnership, the
Trustee nor any agent of the Partnership or the Trustee will have any
responsibility or liability for any aspect of the records relating to or
payments made on account of beneficial ownership interests of a Global Security
or for maintaining, supervising or reviewing any records relating to such
beneficial ownership interests.

SECTION 309. Cancellation

         All Securities surrendered for payment, redemption, registration of
transfer or exchange or for credit against any sinking fund payment shall, if
surrendered to any Person other than the Trustee, be delivered to the Trustee
and shall be promptly canceled by it. The Partnership may at any time deliver to
the Trustee for cancellation any Securities previously authenticated and
delivered hereunder which the Partnership may have acquired in any manner
whatsoever, and may deliver to the Trustee (or to any other Person for delivery
to the Trustee) for cancellation any Securities previously authenticated
hereunder which the Partnership has not issued and sold, and all Securities so
delivered shall be promptly canceled by the Trustee. No Securities shall be
authenticated in lieu of or in exchange for any Securities canceled as provided
in this Section, except as expressly permitted by this Indenture. All canceled
Securities held by the Trustee shall be disposed of in accordance with its
customary procedures, and the Trustee shall thereafter deliver to the
Partnership a certificate with respect to such disposition.

SECTION 310. Computation of Interest

         Except as otherwise specified as contemplated by Section 301 for
Securities of any series, interest on the Securities of each series shall be
computed on the basis of a 360-day year of twelve 30-day months and interest on
the Securities of each series for any partial period shall be computed on the
basis of a 360-day year of twelve 30-day months and the number of days elapsed
in any partial month.

SECTION 311. CUSIP Numbers

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

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<PAGE>   40

                                   ARTICLE IV

                           SATISFACTION AND DISCHARGE

SECTION 401. Satisfaction and Discharge of Indenture

         This Indenture shall upon Partnership Request cease to be of further
effect with respect to Securities of any series (except as to any surviving
rights of registration of transfer or exchange of such Securities herein
expressly provided for), and the Trustee, at the expense of the Partnership,
shall execute proper instruments acknowledging satisfaction and discharge of
this Indenture with respect to such Securities, when

                  (1) either

                           (A) all such Securities theretofore authenticated and
delivered (other than (i) such Securities which have been destroyed, lost or
stolen and which have been replaced or paid as provided in Section 306, and (ii)
such Securities for whose payment money has theretofore been deposited in trust
or segregated and held in trust by the Partnership and thereafter repaid to the
Partnership or discharged from such trust, as provided in Section 1003) have
been delivered to the Trustee for cancellation; or

                           (B) all such Securities not theretofore delivered to
the Trustee for cancellation

                                    (i) have become due and payable,

                                    (ii) will become due and payable at their
Stated Maturity within one year, or

                                    (iii) are to be called for redemption within
one year under arrangements satisfactory to the Trustee for the giving of notice
of redemption by the Trustee in the name, and at the expense, of the
Partnership,

and the Partnership in the case of (i), (ii) or (iii) above, has irrevocably
deposited or caused to be deposited with the Trustee as trust funds in trust for
this purpose an amount of money in the currency or currency units in which such
Securities are payable sufficient to pay and discharge the entire indebtedness
on such Securities not theretofore delivered to the Trustee for cancellation,
for principal and any premium and interest to the date of such deposit (in the
case of Securities which have become due and payable) or to the Stated Maturity
or Redemption Date, as the case may be;

                  (2) the Partnership has paid or caused to be paid all other
sums payable hereunder by the Partnership with respect to such Securities; and

                  (3) the Partnership has delivered to the Trustee an Officers'
Certificate and an Opinion of Counsel, each stating that all conditions
precedent herein provided for relating to the satisfaction and discharge of this
Indenture with respect to such Securities have been complied with.

                                       34
<PAGE>   41

         Notwithstanding the satisfaction and discharge of this Indenture with
respect to Securities of any series, (x) the obligations of the Partnership to
the Trustee under Section 607, the obligations of the Trustee to any
Authenticating Agent under Section 614 and the right of the Trustee to resign
under Section 610 shall survive, and (y) if money shall have been deposited with
the Trustee pursuant to subclause (B) of Clause (1) of this Section, the
obligations of the Partnership and/or the Trustee under Sections 402, 606, 701
and 1002 and the last paragraph of Section 1003 shall survive.

SECTION 402. Application of Trust Money

         Subject to the provisions of the last paragraph of Section 1003, all
money deposited with the Trustee pursuant to Section 401 shall be held in trust
and applied by it, in accordance with the provisions of the Securities and this
Indenture, to the payment, either directly or through any Paying Agent
(including the Partnership acting as its own Paying Agent) as the Trustee may
determine, to the Persons entitled thereto, of the principal and any premium and
interest for whose payment such money has been deposited with the Trustee.

                                    ARTICLE V

                                    REMEDIES

SECTION 501. Events of Default

         "Event of Default", wherever used herein with respect to Securities of
any series, means any one of the following events (whatever the reason for such
Event of Default and whether it shall be voluntary or involuntary or be effected
by operation of law or pursuant to any judgment, decree or order of any court or
any order, rule or regulation of any administrative or governmental body):

                  (1) default in the payment of any interest upon any Security
of that series when it becomes due and payable, and continuance of such default
for a period of 30 days (whether or not such payment is prohibited by the
provisions of Article XIV hereof); or

                  (2) default in the payment of the principal of (or premium, if
any, on) any Security of that series at its Maturity (whether or not such
payment is prohibited by the provisions of Article XIV hereof); or

                  (3) default in the performance, or breach, of any term,
covenant or warranty of the Partnership in this Indenture (other than a term,
covenant or warranty a default in whose performance or whose breach is elsewhere
in this Section specifically dealt with or which has expressly been included in
this Indenture solely for the benefit of series of Securities other than that
series), and continuance of such default or breach for a period of 60 days after
there has been given, by registered or certified mail, to the Partnership by the
Trustee or to the Partnership and the Trustee by Holders of at least 25% in
principal amount of the Outstanding Securities of that

                                       35
<PAGE>   42

series a written notice specifying such default or breach and requiring it to be
remedied and stating that such notice is a "Notice of Default" hereunder; or

                  (4) the Partnership pursuant to or within the meaning of any
Bankruptcy Law (A) commences a voluntary case, (B) consents to the entry of any
order for relief against it in an involuntary case, (C) consents to the
appointment of a Custodian of it or for all or substantially all of its
property, or (D) makes a general assignment for the benefit of its creditors; or

                  (5) a court of competent jurisdiction enters an order or
decree under any Bankruptcy Law that (A) is for relief against the Partnership
in an involuntary case, (B) appoints a Custodian of the Partnership or for all
or substantially all of its property, or (C) orders the liquidation of the
Partnership; and the order or decree remains unstayed and in effect for 90 days;
or

                  (6) any other Event of Default provided as contemplated by
Section 301 with respect to Securities of that series.

SECTION 502. Acceleration of Maturity; Rescission and Annulment

         If an Event of Default with respect to Securities of any series at the
time Outstanding occurs and is continuing, then in every such case the Trustee
or the Holders of not less than 25% in principal amount of the Outstanding
Securities of that series may declare the principal amount of (or, if any of the
Securities of that series are Original Issue Discount Securities, such portion
of the principal amount of such Securities as may be specified in the terms
thereof), and accrued but unpaid interest, if any, on all of the Securities of
that series to be due and payable immediately, by a notice in writing to the
Partnership (and to the Trustee if given by Holders), and upon any such
declaration such principal amount (or specified amount) shall become immediately
due and payable.

         At any time after such a declaration of acceleration with respect to
Securities of any series has been made and before a judgment or decree for
payment of the money due has been obtained by the Trustee as hereinafter in this
Article provided, the Holders of a majority in principal amount of the
Outstanding Securities of that series, by written notice to the Partnership and
the Trustee, may rescind and annul such declaration and its consequences if

                  (1) the Partnership has paid or deposited with the Trustee a
sum sufficient to pay

                           (A) all overdue interest on all Securities of that
series,

                           (B) the principal of (and premium, if any, on) any
Securities of that series which have become due otherwise than by such
declaration of acceleration and any interest thereon at the rate or rates
prescribed therefor in such Securities,

                           (C) to the extent that payment of such interest is
lawful, interest upon overdue interest at the rate or rates prescribed therefor
in such Securities, and

                                       36
<PAGE>   43

                           (D) all sums paid or advanced by the Trustee
hereunder and the reasonable compensation, expenses, disbursements and advances
of the Trustee, its agents and counsel; and

                  (2) all Events of Default with respect to Securities of that
series, other than the non-payment of the principal of Securities of that series
which have become due solely by such declaration of acceleration, have been
cured or waived as provided in Section 513.

         No such rescission shall affect any subsequent Default or impair any
right consequent thereon.

SECTION 503. Collection of Indebtedness and Suits for Enforcement by Trustee

         The Partnership covenants that if

                  (1) default is made in the payment of any interest on any
Security when such interest becomes due and payable and such default continues
for a period of 30 days (whether or not such payment is prohibited by the
provisions of Article XIV hereof), or

                  (2) default is made in the payment of the principal of (or
premium, if any, on) any Security at the Maturity thereof (whether or not such
payment is prohibited by the provisions of Article XIV hereof),

the Partnership will, upon demand of the Trustee, pay to it, for the benefit of
the Holders of such Securities, the whole amount then due and payable on such
Securities for principal and any premium and interest and, to the extent that
payment of such interest shall be legally enforceable, interest on any overdue
principal and premium and on any overdue interest, at the rate or rates
prescribed therefor in such Securities, and, in addition thereto, 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.

         If the Partnership fails to pay such amounts forthwith upon such
demand, the Trustee, in its own name and as trustee of an express trust, may
institute a judicial proceeding for the collection of the sums so due and
unpaid, may prosecute such proceeding to judgment or final decree and may
enforce the same against the Partnership or any other obligor upon such
Securities and collect the moneys adjudged or decreed to be payable in the
manner provided by law out of the property of the Partnership or any other
obligor upon such Securities, wherever situated.

         If an Event of Default with respect to Securities of any series occurs
and is continuing, the Trustee may in its discretion proceed to protect and
enforce its rights and the rights of the Holders of Securities of such series by
such appropriate judicial proceedings as the Trustee shall deem most effectual
to protect and enforce any such rights, whether for the specific enforcement of
any covenant or agreement in this Indenture or in aid of the exercise of any
power granted herein, or to enforce any other proper remedy.

                                       37
<PAGE>   44

SECTION 504. Trustee May File Proofs of Claim

         In case of any judicial proceeding relative to the Partnership or any
other obligor upon the Securities, their property or their creditors, the
Trustee shall be entitled and empowered, by intervention in such proceeding or
otherwise, to take any and all actions authorized under the Trust Indenture Act
in order to have claims of the Holders and the Trustee allowed in any such
proceeding. In particular, the Trustee shall be authorized to collect and
receive any moneys or other property payable or deliverable on any such claims
and to distribute the same; and any custodian, receiver, assignee, trustee,
liquidator, sequestrator or other similar official 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 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 607.

         No provision of this Indenture 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
Securities or the rights of any Holder thereof or to authorize the Trustee to
vote in respect of the claim of any Holder in any such proceeding; provided,
however, that the Trustee may, on behalf of the Holders, vote for the election
of a trustee in bankruptcy or similar official and be a member of a creditors'
or other similar committee.

SECTION 505. Trustee May Enforce Claims Without Possession of Securities

         All rights of action and claims under this Indenture or the Securities
may be prosecuted and enforced by the Trustee without the possession of any of
the Securities or the production thereof in any proceeding relating thereto, and
any such proceeding instituted by the Trustee shall be brought in its own name
as trustee of an express trust, and any recovery of judgment shall, after
provision for the payment of the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel, be for the
ratable benefit of the Holders of the Securities in respect of which such
judgment has been recovered.

SECTION 506. Application of Money Collected

         Any money or property collected or to be applied by the Trustee
pursuant to this Article shall be applied in the following order, at the date or
dates fixed by the Trustee and, in case of the distribution of such money or
property on account of principal or any premium or interest, upon presentation
of the Securities and the notation thereon of the payment if only partially paid
and upon surrender thereof if fully paid:

         FIRST: To the payment of all amounts due the Trustee under Section 607;

         SECOND: Subject to Article XIV, to the payment of the amounts then due
and unpaid for principal of and any premium and interest on the Securities in
respect of which or for the benefit of which such money has been collected,
ratably, without preference or priority of any kind, according to the amounts
due and payable on such Securities for principal and any premium and interest,
respectively; and

                                       38
<PAGE>   45

         THIRD: The balance, if any, to the Partnership.

SECTION 507. Limitation on Suits

         No Holder of any Security of any series shall have any right to
institute any proceeding, judicial or otherwise, with respect to this Indenture,
or for the appointment of a receiver or trustee, or for any other remedy
hereunder, unless

                  (1) such Holder has previously given written notice to the
Trustee of a continuing Event of Default with respect to the Securities of that
series;

                  (2) the Holders of not less than 25% in principal amount of
the Outstanding Securities of that series shall have made written request to the
Trustee to institute proceedings in respect of such Event of Default in its own
name as Trustee hereunder;

                  (3) such Holder or Holders have offered and, if requested,
provided to the Trustee reasonable security or indemnity against the costs,
expenses and liabilities to be incurred in compliance with such request;

                  (4) the Trustee for 60 days after its receipt of such notice,
request and offer and, if requested, provision of security or indemnity has
failed to institute any such proceeding; and

                  (5) no direction inconsistent with such written request has
been given to the Trustee during such 60-day period by the Holders of a majority
in principal amount of the Outstanding Securities of that series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, or to obtain or to seek to obtain priority or preference over any
other of such Holders or to enforce any right under this Indenture, except in
the manner herein provided and for the equal and ratable benefit of all of such
Holders.

SECTION 508. Unconditional Right of Holders to Receive Principal, Premium and
Interest

         Notwithstanding any other provision in this Indenture, the Holder of
any Security shall have the right, which is absolute and unconditional, to
receive payment of the principal of and any premium and (subject to Sections 305
and 307) interest on such Security on the respective Stated Maturities expressed
in such Security (or, in the case of redemption, on the Redemption Date) and to
institute suit for the enforcement of any such payment, and such rights shall
not be impaired without the consent of such Holder.

SECTION 509. Restoration of Rights and Remedies

         If the Trustee or any Holder has instituted any proceeding to enforce
any right or remedy under this Indenture and such proceeding has been
discontinued or abandoned for any reason, or has been determined adversely to
the Trustee or to such Holder, then in every such case, subject

                                       39
<PAGE>   46

to any determination in such proceeding, the Partnership, the Trustee and the
Holders shall be restored severally and respectively to their former positions
hereunder, and thereafter all rights and remedies of the Trustee and the Holders
shall continue as though no such proceeding had been instituted.

SECTION 510. Rights and Remedies Cumulative

         Except as otherwise provided with respect to the replacement or payment
of mutilated, destroyed, lost or stolen Securities in the last paragraph of
Section 306, no right or remedy herein conferred upon or reserved to the Trustee
or to the Holders is intended to be exclusive of any other right or remedy, and
every right and remedy shall, to the extent permitted by law, be cumulative and
in addition to every other right and remedy given hereunder or now or hereafter
existing at law or in equity or otherwise. The assertion or employment of any
right or remedy hereunder, or otherwise, shall not prevent the concurrent
assertion or employment of any other appropriate right or remedy.

SECTION 511. Delay or Omission Not Waiver

         No delay or omission of the Trustee or of any Holder of any Securities
to exercise any right or remedy accruing upon any Event of Default shall impair
any such right or remedy or constitute a waiver of any such Event of Default or
an acquiescence therein. Every right and remedy given by this Article or by law
to the Trustee or to the Holders may be exercised from time to time, and as
often as may be deemed expedient, by the Trustee or by the Holders, as the case
may be.

SECTION 512. Control by Holders

         Subject to the provisions of Section 603, the Holders of a majority in
aggregate principal amount of the Outstanding Securities of any series shall
have the right to direct the time, method and place of conducting any proceeding
for any remedy available to the Trustee, or exercising any trust or power
conferred on the Trustee, with respect to the Securities of such series;
provided, however, that

                  (1) such direction shall not be in conflict with any rule of
law or with this Indenture;

                  (2) the Trustee may take any other action deemed proper by the
Trustee which is not inconsistent with such direction; and

                  (3) subject to the provisions of Section 601, the Trustee
shall have the right to decline to follow any such direction if the Trustee in
good faith shall determine that the proceeding so directed would involve the
Trustee in personal liability or would otherwise be contrary to applicable law.

                                       40
<PAGE>   47

SECTION 513. Waiver of Past Defaults

         The Holders of a majority in aggregate principal amount of the
Outstanding Securities of any series may on behalf of the Holders of all the
Securities of such series waive any past default hereunder with respect to such
series and its consequences, except

                  (1) a continuing default in the payment of the principal of or
any premium or interest on any Security of such series, or

                  (2) a default in respect of a covenant or provision hereof
which under Article IX cannot be modified or amended without the consent of the
Holder of each Outstanding Security of such series affected.

         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 514. 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, suffered or
omitted by it as Trustee, a court may require any party litigant in such suit to
file an undertaking to pay the costs of such suit, and may assess costs against
any such party litigant, in the manner and to the extent provided in the Trust
Indenture Act; provided, however, that neither this Section nor the Trust
Indenture Act shall be deemed to authorize any court to require such an
undertaking or to make such an assessment in any suit instituted by the Trustee,
in any suit instituted by any Holder, or group of Holders, holding in the
aggregate more than 10% in principal amount of the Outstanding Securities of any
series to which the suit relates, or in any suit instituted by any Holder for
the enforcement of the payment of the principal of (or premium, if any) or
interest on any Security on or after the respective Stated Maturities expressed
by such Security (or, in the case of redemption or repayment, on or after the
Redemption Date).

                                   ARTICLE VI

                                   THE TRUSTEE

SECTION 601. Certain Duties and Responsibilities

                  (a) Except during the continuance of an Event of Default with
respect to any series of Securities,

                           (1) the Trustee undertakes to perform such duties and
         only such duties as are specifically set forth in this Indenture with
         respect to the Securities of such series, and no implied covenants or
         obligations shall read into this Indenture against the Trustee; and

                                       41
<PAGE>   48

                           (2) in the absence of bad faith on its part, the
         Trustee may, with respect to Securities of such series, 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 conforming to the requirements of this Indenture; but 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 be under a duty to examine the same to determine whether
         or not they conform to the requirements of this Indenture.

                  (b) In case an Event of Default with respect to any series of
Securities has occurred and is continuing, the Trustee shall exercise with
respect to the Securities of such series such rights and powers vested in it by
this Indenture, and use the same degree of care and skill in their exercise, as
a prudent Person would exercise or use under the circumstances in the conduct of
such person's own affairs.

                  (c) No provisions of this Indenture shall be construed to
relieve the Trustee from liability for its own negligent action, its own
negligent failure to act, or its own willful misconduct, except that

                           (1) this Subsection shall not be construed to limit
         the effect of Subsection (a) of this Section;

                           (2) the Trustee shall not be liable for any error of
         judgment made in good faith by a responsible officer, unless it shall
         be proved that the Trustee was negligent in ascertaining the pertinent
         facts;

                           (3) the Trustee shall not be liable with respect to
         any action taken or omitted to be taken by it in good faith in
         accordance with the direction of the Holders or a majority in principal
         amount of the Outstanding Securities of any series relating to the
         time, method and place of conducting any proceeding for any remedy
         available to the Trustee, or exercising any trust or power conferred
         upon the Trustee, under this Indenture with respect to the Securities
         of such series; and

                           (4) no provision of this Indenture shall require the
         Trustee to expend or risk its own funds or otherwise incur any
         financial liability in the performance of any of its duties hereunder,
         or in the exercise of any of its rights or powers, if it shall have
         reasonable grounds for believing that repayment of such funds or
         adequate indemnity against such risk or liability is not reasonably
         assured to it.

                  (d) Whether or not therein expressly so provided, every
provision of this Indenture relating to the conduct or affecting the liability
of or affording protection to the Trustee shall be subject to the provisions of
this Section.

SECTION 602. Notice of Defaults

         If a Default occurs and is continuing with respect to the Securities of
any series, the Trustee shall, within 90 days after it occurs, transmit, in the
manner and to the extent provided in Section 313(c) of the Trust Indenture Act,
notice of all uncured or unwaived Defaults known to

                                       42
<PAGE>   49

it; provided, however, that, except in the case of a Default in payment on the
Securities of any series, the Trustee shall be protected in withholding the
notice if and so long as the board of directors, the executive committee or a
trust committee of directors or responsible officers of the Trustee determine in
good faith that withholding such notice is in the interests of Holders of
Securities of such series; provided, further, however, that, in the case of any
default or breach of the character specified in Section 501(3) with respect to
the Securities of such series, no such notice to Holders shall be given until at
least 60 days after the occurrence thereof.

SECTION 603. Certain Rights of Trustee

         Subject to the provisions of Section 601:

                  (1) the Trustee may rely on and shall be protected in acting
or refraining from acting upon any resolution, certificate, statement,
instrument, opinion, report, notice, request, direction, consent, order, bond,
debenture, note, other evidence of indebtedness or other paper or document
believed by it to be genuine and to have been signed or presented by the proper
party or parties;

                  (2) any request, direction, order or demand of the Partnership
mentioned herein shall be sufficiently evidenced by a Partnership Request or
Partnership Order (or in the case of a Periodic Offering, as agreed in
procedures set forth in a Partnership Order pursuant to Section 303) and any
resolution of the Board of Directors shall be sufficiently evidenced by a Board
Resolution;

                  (3) whenever in the administration of this Indenture the
Trustee shall deem it desirable that a matter be proved or established prior to
taking, suffering or omitting any action hereunder, the Trustee (unless other
evidence be herein specifically prescribed) may, in the absence of bad faith on
its part, rely upon an Officers' Certificate;

                  (4) the Trustee may consult with counsel and the written
advice of such counsel or any Opinion of Counsel shall be full and complete
authorization and protection in respect of any action taken, suffered or omitted
by it hereunder in good faith and in reliance thereon;

                  (5) 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 pursuant to this Indenture, unless such Holders
shall have offered to the Trustee security or indemnity satisfactory to it
against the costs, expenses and liabilities which might be incurred by it in
compliance with such request or direction;

                  (6) the Trustee shall not be bound to make any investigation
into the facts or matters stated in any resolution, certificate, statement,
instrument, opinion, report, notice, request, direction, consent, order, bond,
debenture, note, other evidence of indebtedness or other paper or document, but
the Trustee, in its discretion, may, without obligation to do so, 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 Partnership, personally or by agent or attorney;

                                       43
<PAGE>   50

                  (7) the Trustee may execute any of the trusts or powers
hereunder or perform any duties hereunder either directly or by or through
agents or attorneys and the Trustee shall not be responsible for any misconduct
or negligence on the part of any agent or attorney appointed with due care by it
hereunder; and

                  (8) the Trustee may request that the Partnership deliver an
Officers' Certificate setting forth the names of individuals and/or titles of
officers authorized at such time to take specified actions pursuant to this
Indenture, which Officers' Certificate may be signed by any Person authorized to
sign an Officers' Certificate, including any Person specified as so authorized
in any such certificate previously delivered and not superseded.

SECTION 604. Not Responsible for Recitals or Issuance of Securities

         The recitals contained herein and in the Securities, except the
Trustee's certificates of authentication, shall be taken as the statements of
the Partnership, and the Trustee or any Authenticating Agent assumes no
responsibility for their correctness. Neither the Trustee nor any Authenticating
Agent makes any representations as to the validity or sufficiency of this
Indenture or of the Securities. Neither the Trustee nor any Authenticating Agent
shall be accountable for the use or application by the Partnership of Securities
or the proceeds thereof.

SECTION 605. May Hold Securities

         The Trustee, any Authenticating Agent, any Paying Agent, any Security
Registrar or any other agent of the Partnership, in its individual or any other
capacity, may become the owner or pledgee of Securities and, subject to Sections
608 and 613, may otherwise deal with the Partnership with the same rights it
would have if it were not Trustee, Authenticating Agent, Paying Agent, Security
Registrar or such other agent.

SECTION 606. Money Held in Trust

         Money held by the Trustee in trust hereunder need not be segregated
from other funds except to the extent required by law. The Trustee shall be
under no liability for interest on any money received by it hereunder except as
otherwise agreed with the Partnership.

SECTION 607. Compensation and Reimbursement

         The Partnership agrees:

                  (1) to pay to the Trustee from time to time reasonable
compensation for all services rendered by it hereunder (which compensation shall
not be limited by any provision of law in regard to the compensation of a
trustee of an express trust);

                  (2) to reimburse the Trustee upon its request for all
reasonable expenses, disbursements and advances incurred or made by the Trustee
in accordance with any provision of this Indenture (including the reasonable
compensation and the expenses and disbursements of its agents and counsel),
except any such expense, disbursement or advance as may be attributable to its
negligence or bad faith; and

                                       44
<PAGE>   51

                  (3) to indemnify the Trustee for, and to hold it harmless
against, any loss, liability or expense incurred without negligence or bad faith
on its part, arising out of or in connection with the acceptance or
administration of the trust or trusts hereunder, including the costs and
expenses of defending itself against any claim or liability in connection with
the exercise or performance of any of its powers or duties hereunder.

         The obligations of the Partnership under this Section to compensate the
Trustee and to pay or reimburse the Trustee for expenses, disbursements and
advances shall constitute additional indebtedness hereunder.

         Without limiting any rights available to the Trustee under applicable
law, when the Trustee incurs expenses or renders services in connection with an
Event of Default specified in Section 501(4) or Section 501(5), the expenses
(including the reasonable charges and expenses of its counsel) and the
compensation for such services are intended to constitute expenses of
administration under any applicable Bankruptcy Law.

         The provisions of this Section shall survive the satisfaction and
discharge of this Indenture and the defeasance of the Securities.

SECTION 608.      Disqualification; Conflicting Interests

         If the Trustee has or shall acquire a conflicting interest within the
meaning of the Trust Indenture Act, the Trustee shall either eliminate such
interest or resign, to the extent and in the manner provided by, and subject to
the provisions of, the Trust Indenture Act and this Indenture.

SECTION 609.      Corporate Trustee Required; Eligibility

         There shall at all times be one or more Trustees hereunder with respect
to the Securities of each series, at least one of which shall be a Person that
is eligible pursuant to the Trust Indenture Act to act as such and has a
combined capital and surplus required by the Trust Indenture Act. If such Person
publishes reports of condition at least annually, pursuant to law or to the
requirements of a supervising or examining authority, then for the purposes of
this Section, the combined capital and surplus of such Person shall be deemed to
be its combined capital and surplus as set forth in its most recent report of
condition so published. If at any time the Trustee shall cease to be eligible in
accordance with the provisions of this Section, it shall resign immediately in
the manner and with the effect hereinafter specified in this Article.

SECTION 610.      Resignation and Removal; Appointment of Successor

         No resignation or removal of the Trustee and no appointment of a
successor Trustee pursuant to this Article shall become effective until the
acceptance of appointment by the successor Trustee in accordance with the
applicable requirements of Section 611.

         The Trustee may resign at any time with respect to the Securities of
one or more series by giving written notice thereof to the Partnership. If the
instrument of acceptance by a successor Trustee required by Section 611 shall
not have been delivered to the Trustee within 30 days after the giving of such
notice of resignation, the resigning Trustee may petition any court of competent
jurisdiction for the appointment of a successor Trustee with respect to the
Securities of such series.

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<PAGE>   52

         The Trustee may be removed at any time with respect to the Securities
of any series by Act of the Holders of a majority in principal amount of the
Outstanding Securities of such series, delivered to the Trustee and to the
Partnership. If an instrument of acceptance by a successor Trustee shall not
have been delivered to the Trustee within 30 days after the giving of such
notice of removal, the removed Trustee may petition any court of competent
jurisdiction for the appointment of a successor Trustee.

         If at any time:

                  (1) the Trustee shall fail to comply with Section 608 after
written request therefor by the Partnership or by any Holder who has been a bona
fide Holder of a Security for at least six months, or

                  (2) the Trustee shall cease to be eligible under Section 609
and shall fail to resign after written request therefor by the Partnership or by
any such Holder, or

                  (3) the Trustee shall become incapable of acting or shall be
adjudged a bankrupt or insolvent or a receiver of the Trustee or of its property
shall be appointed or any public officer shall take charge or control of the
Trustee or of its property or affairs for the purpose of rehabilitation,
conservation or liquidation, then, in any such case, (A) the Partnership, acting
pursuant to the authority of a Board Resolution, may remove the Trustee with
respect to all Securities, or (B) subject to Section 514, any Holder who has
been a bona fide Holder of a Security for at least six months may, on behalf of
himself and all others similarly situated, petition any court of competent
jurisdiction for the removal of the Trustee with respect to all Securities and
the appointment of a successor Trustee or Trustees.

         If the Trustee shall resign, be removed or become incapable of acting,
or if a vacancy shall occur in the office of Trustee for any cause, with respect
to the Securities of one or more series, the Partnership, by a Board Resolution,
shall promptly appoint a successor Trustee or Trustees with respect to the
Securities of that or those series (it being understood that any such successor
Trustee may be appointed with respect to the Securities of one or more or all of
such series and that at any time there shall be only one Trustee with respect to
the Securities of any particular series) and shall comply with the applicable
requirements of Section 611. If, within one year after such resignation, removal
or incapability, or the occurrence of such vacancy, a successor Trustee with
respect to the Securities of any series shall be appointed by Act of the Holders
of a majority in principal amount of the Outstanding Securities of such series
delivered to the Partnership and the retiring Trustee, the successor Trustee so
appointed shall, forthwith upon its acceptance of such appointment in accordance
with the applicable requirements of Section 611, become the successor Trustee
with respect to the Securities of such series and to that extent supersede the
successor Trustee appointed by the Partnership. If no successor Trustee with
respect to the Securities of any series shall have been so appointed by the
Partnership or the Holders and accepted appointment in the manner required by
Section 611, any Holder who has been a bona fide Holder of a Security of such
series for at least six months may, on behalf of

                                       46

<PAGE>   53

himself and all others similarly situated, petition any court of competent
jurisdiction for the appointment of a successor Trustee with respect to the
Securities of such series.

         The Partnership shall give notice of each resignation and each removal
of the Trustee with respect to the Securities of any series and each appointment
of a successor Trustee with respect to the Securities of any series to all
Holders of Securities of such series in the manner provided in Section 106. Each
notice shall include the name of the successor Trustee with respect to the
Securities of such series and the address of its Corporate Trust Office.

SECTION 611. Acceptance of Appointment by Successor

                  (1) In case of the appointment hereunder of a successor
Trustee with respect to all Securities, every such successor Trustee so
appointed shall execute, acknowledge and deliver to the Partnership and to the
retiring Trustee an instrument accepting such appointment, and thereupon the
resignation or removal of the retiring Trustee shall become effective and such
successor Trustee, without any further act, deed or conveyance, shall become
vested with all the rights, powers, trusts and duties of the retiring Trustee;
but, on the request of the Partnership or the successor Trustee, such retiring
Trustee shall, upon payment of its charges, execute and deliver an instrument
transferring to such successor Trustee all the rights, powers and trusts of the
retiring Trustee and shall duly assign, transfer and deliver to such successor
Trustee all property and money held by such retiring Trustee hereunder.

                  (2) In case of the appointment hereunder of a successor
Trustee with respect to the Securities of one or more (but not all) series, the
Partnership, the retiring Trustee and each successor Trustee with respect to the
Securities of one or more series shall execute and deliver an indenture
supplemental hereto wherein each successor Trustee shall accept such appointment
and which (A) shall contain such provisions as shall be necessary or desirable
to transfer and confirm to, and to vest in, each successor Trustee all the
rights, powers, trusts and duties of the retiring Trustee with respect to the
Securities of that or those series to which the appointment of such successor
Trustee relates, (B) if the retiring Trustee is not retiring with respect to all
Securities, shall contain such provisions as shall be deemed necessary or
desirable to confirm that all the rights, powers, trusts and duties of the
retiring Trustee with respect to the Securities of that or those series as to
which the retiring Trustee is not retiring shall continue to be vested in the
retiring Trustee, and (C) shall add to or change any of the provisions of this
Indenture as shall be necessary to provide for or facilitate the administration
of the trusts hereunder by more than one Trustee, it being understood that
nothing herein or in such supplemental indenture shall constitute such Trustees
as co-trustees of the same trust and that each such Trustee shall be trustee of
a trust or trusts hereunder separate and apart from any trust or trusts
hereunder administered by any other such Trustee; and upon the execution and
delivery of such supplemental indenture the resignation or removal of the
retiring Trustee shall become effective to the extent provided therein and each
such successor Trustee, without any further act, deed or conveyance, shall
become vested with all the rights, powers, trusts and duties of the retiring
Trustee with respect to the Securities of that or those series to which the
appointment of such successor Trustee relates, but, on request of the
Partnership or any successor Trustee, such retiring Trustee shall, upon payment
of its charges, duly assign, transfer and deliver to such successor Trustee all
property and money held by such retiring Trustee hereunder with respect to the
Securities of that or those series to which the appointment of such successor
Trustee relates.

                                       47
<PAGE>   54

                  (3) Upon request of any such successor Trustee, the
Partnership shall execute any and all instruments for more fully and certainly
vesting in and confirming to such successor Trustee all such rights, powers and
trusts referred to in paragraph (1) or (2) of this Section, as the case may be.

                  (4) No successor Trustee shall accept its appointment unless
at the time of such acceptance such successor Trustee shall be qualified and
eligible under this Article.

SECTION 612. Merger, Conversion, Consolidation or Succession to Business

         Any corporation into which the Trustee may be merged or converted or
with which it may be consolidated, or any corporation resulting from any merger,
conversion or consolidation to which the Trustee shall be a party, or any
corporation succeeding to all or substantially all the corporate trust business
of the Trustee, shall be the successor of the Trustee hereunder, provided such
corporation shall be otherwise qualified and eligible under this Article,
without the execution or filing of any paper or any further act on the part of
any of the parties hereto. In case any Securities shall have been authenticated,
but not delivered, by the Trustee then in office, any successor by merger,
conversion or consolidation to such authenticating Trustee may adopt such
authentication and deliver the Securities so authenticated with the same effect
as if such successor Trustee had itself authenticated such Securities.

SECTION 613. Preferential Collection of Claims Against Partnership

         If and when the Trustee shall be or become a creditor of the
Partnership or any other obligor upon the Securities, the Trustee shall be
subject to the provisions of the Trust Indenture Act regarding the collection of
claims against the Partnership or any such other obligor.

SECTION 614. Appointment of Authenticating Agent

         The Trustee (upon notice to the Partnership) may appoint an
Authenticating Agent or Agents with respect to one or more series of Securities
which shall be authorized to act on behalf of the Trustee to authenticate
Securities of such series issued upon original issue (in accordance with
procedures acceptable to the Trustee) and upon exchange, registration of
transfer or partial redemption thereof or pursuant to Section 306, and
Securities so authenticated shall be entitled to the benefits of this Indenture
and shall be valid and obligatory for all purposes as if authenticated by the
Trustee hereunder. Wherever reference is made in this Indenture to the
authentication and delivery of Securities by the Trustee or the Trustee's
certificate of authentication, such reference shall be deemed to include
authentication and delivery on behalf of the Trustee by an Authenticating Agent
and a certificate of authentication executed on behalf of the Trustee by an
Authenticating Agent. Each Authenticating Agent shall be acceptable to the
Partnership and shall at all times be a corporation organized and doing business
under the laws of the United States of America, any State thereof or the
District of Columbia, authorized under such laws to act as Authenticating Agent,
having a combined capital and surplus of not less than $50,000,000 and subject
to supervision or examination by Federal or State authority. If such
Authenticating Agent publishes reports of condition at least annually, pursuant
to law or to the requirements of said supervising or examining authority, then
for the purposes of this Section, the combined

                                       48
<PAGE>   55

capital and surplus of such Authenticating Agent shall be deemed to be its
combined capital and surplus as set forth in its most recent report of condition
so published. If at any time an Authenticating Agent shall cease to be eligible
in accordance with the provisions of this Section, such Authenticating Agent
shall resign immediately in the manner and with the effect specified in this
Section.

         Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to all or substantially all of
the corporate agency or corporate trust business of such Authenticating Agent,
shall continue to be an Authenticating Agent, provided such corporation shall be
otherwise eligible under this Section, without the execution or filing of any
paper or any further act on the part of the Trustee or such Authenticating
Agent.

         An Authenticating Agent may resign at any time by giving written notice
thereof to the Trustee and to the Partnership. The Trustee may at any time
terminate the agency of an Authenticating Agent by giving written notice thereof
to such Authenticating Agent and to the Partnership. Upon receiving such a
notice of resignation or upon such a termination, or in case at any time such
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, the Trustee may appoint a successor Authenticating
Agent which shall be acceptable to the Partnership. Any successor Authenticating
Agent upon acceptance of its appointment hereunder shall become vested with all
the rights, powers and duties of its predecessor hereunder, with like effect as
if originally named as an Authenticating Agent. No successor Authenticating
Agent shall be appointed unless eligible under the provisions of this Section.

         Except with respect to an Authenticating Agent appointed at the request
of the Partnership, the Trustee agrees to pay to each Authenticating Agent from
time to time reasonable compensation for its services under this Section.

         If an appointment with respect to one or more series is made pursuant
to this Section, the Securities of such series may have endorsed thereon, in
addition to the Trustee's certificate of authentication, an alternative
certificate of authentication in the following form:

         This is one of the Securities of the series designated therein referred
to in the within-mentioned Indenture.

                                        FIRST UNION NATIONAL BANK,
                                               As Trustee

                                        By:
                                           -----------------------------------
                                                As Authenticating Agent

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

                                       49
<PAGE>   56

                                   ARTICLE VII

                    HOLDERS' LISTS AND REPORTS BY TRUSTEE AND
                                   PARTNERSHIP

SECTION 701. Partnership to Furnish Trustee Names and Addresses of Holders

         The Partnership will furnish or cause to be furnished to the Trustee

                  (1) semi-annually, not later than each Interest Payment Date
in each year, a list for each series of Securities, in such form as the Trustee
may reasonably require, of the names and addresses of the Holders of Securities
of such series as of the preceding Regular Record Date, and

                  (2) at such other times as the Trustee may request in writing,
within 30 days after the receipt by the Partnership of any such request, a list
of similar form and content as of a date not more than 15 days prior to the time
such list is furnished;

provided, however, that if and so long as the Trustee shall be the Security
Registrar for Securities of a series, no such list need be furnished with
respect to such series of Securities.

SECTION 702. Preservation of Information; Communications to Holders

         The Trustee shall comply with the obligations imposed upon it pursuant
to Section 312 of the Trust Indenture Act.

         The rights of the Holders to communicate with other Holders with
respect to their rights under this Indenture or under the Securities, and the
corresponding rights and privileges of the Trustee, shall be as provided by the
Trust Indenture Act.

         Every Holder of Securities, by receiving and holding the same, agrees
with the Partnership and the Trustee that neither the Partnership nor the
Trustee nor any agent of either of them shall be held accountable by reason of
any disclosure of information as to the names and addresses of Holders made
pursuant to the Trust Indenture Act.

SECTION 703. Reports by Trustee

         As promptly as practicable after each May 15 beginning with the May 15
following the date of this Indenture, and in any event prior to July 15 in each
year, the Trustee shall mail to each Holder a brief report dated as of May 15
that complies with TIA Section 313(a). The Trustee also shall comply with TIA
Section 313(b). Prior to delivery to the Holders, the Trustee shall deliver to
the Partnership a copy of any report it delivers to Holders pursuant to this
Section 703.

         A copy of each such report shall, at the time of such transmission to
Holders, be filed by the Trustee with each stock exchange upon which any
Securities are listed, with the Commission and with the Partnership. The
Partnership will notify the Trustee when any Securities are listed on any stock
exchange.

                                       50
<PAGE>   57

SECTION 704. Reports by Partnership

         The Partnership shall:

                  (1) file with the Trustee, within 15 days after the
Partnership is required to file the same with the Commission, copies of the
annual reports and of the information, documents and other reports (or copies of
such portions of any of the foregoing as the Commission may from time to time by
rules and regulations prescribe) which the Partnership may be required to file
with the Commission pursuant to Section 13 or Section 15(d) of the Exchange Act;
or, if the Partnership is not required to file information, documents or reports
pursuant to either of said Sections, then it shall file with the Trustee and the
Commission (unless the Commission will not accept such a filing), in accordance
with rules and regulations prescribed from time to time by the Commission, such
of the supplementary and periodic information, documents and reports which may
be required pursuant to Section 13 of the Exchange Act in respect of a security
listed and registered on a national securities exchange as may be prescribed
from time to time in such rules and regulations;

                  (2) file with the Trustee and the Commission, in accordance
with rules and regulations prescribed from time to time by the Commission, such
additional information, documents and reports with respect to compliance by the
Partnership with the conditions and covenants of this Indenture as may be
required from time to time by such rules and regulations; and

                  (3) transmit by mail to all Holders, as their names and
addresses appear in the Security Register, within 30 days after the filing
thereof with the Trustee, such summaries of any information, documents and
reports required to be filed by the Partnership pursuant to paragraphs (1) and
(2) of this Section as may be required by rules and regulations prescribed from
time to time by the Commission.

                                  ARTICLE VIII

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801. Partnership May Consolidate, Etc., Only on Certain Terms

         The Partnership shall not consolidate with or merge into any other
Person or sell, lease or transfer its properties and assets as, or substantially
as, an entirety to, any Person, unless:

                  (1) (A) in the case of a merger, the Partnership is the
surviving entity, or (B) the Person formed by such consolidation or into which
the Partnership is merged or the Person which acquires by sale or transfer, or
which leases, the properties and assets of the Partnership as, or substantially
as, an entirety must expressly assume, by an indenture supplemental hereto,
executed and delivered to the Trustee, in form reasonably satisfactory to the
Trustee, all of the obligations of the Partnership under this Indenture and the
Securities;

                  (2) the surviving entity or successor Person is a Person
organized and existing under the laws of the United States, any State thereof or
the District of Columbia;

                                       51
<PAGE>   58

                  (3) immediately after giving effect to such transaction, no
Default or Event of Default exists; and

                  (4) the Partnership has delivered to the Trustee an Officers'
Certificate and an Opinion of Counsel, each stating that such consolidation,
merger, sale, transfer or lease and the supplemental indenture required in
connection with such transaction comply with this Article and that all
conditions precedent herein provided for relating to such transaction have been
complied with.

SECTION 802. Successor Substituted

         Upon any consolidation of the Partnership with, or merger of the
Partnership into, any other Person or any sale, transfer or lease of the
properties and assets of the Partnership as, or substantially as, an entirety in
accordance with Section 801, the successor Person formed by such consolidation
or into which the Partnership is merged or to which such sale, transfer or lease
is made shall succeed to, and be substituted for, and may exercise every right
and power of, the Partnership under this Indenture with the same effect as if
such successor Person had been named originally as the Partnership herein, and
thereafter, except in the case of a lease, the predecessor Person shall be
relieved of all obligations and covenants under this Indenture and the
Securities.

                                   ARTICLE IX

                             SUPPLEMENTAL INDENTURES

SECTION 901. Supplemental Indentures Without Consent of Holders

         Without the consent of any Holders of Securities, the Partnership and
the Trustee, at any time and from time to time, may enter into one or more
indentures supplemental hereto, in form satisfactory to the Trustee, for any of
the following purposes:

                  (1) to evidence the succession of another Person to the
Partnership under this Indenture and the Securities and the assumption by such
successor Person of the obligations of the Partnership hereunder;

                  (2) to add covenants and Events of Default for the benefit of
the Holders of all or any series of such Securities or to surrender any right or
power conferred by this Indenture upon the Partnership;

                  (3) to add to, change or eliminate any of the provisions of
this Indenture, provided that any such addition, change or elimination shall
become effective only after there are no such Securities of any series entitled
to the benefit of such provision outstanding;

                  (4) to establish the forms or terms of the Securities of any
series issued hereunder;

                                       52
<PAGE>   59

                  (5) to cure any ambiguity or correct any inconsistency in this
Indenture;

                  (6) to evidence the acceptance of appointment by a successor
Trustee with respect to one or more series of Securities or otherwise;

                  (7) to qualify this Indenture under the Trust Indenture Act;

                  (8) to provide for uncertificated securities in addition to
certificated securities;

                  (9) to supplement any provisions of this Indenture necessary
to permit or facilitate the defeasance and discharge of any series of
Securities, provided that such action does not adversely affect the interests of
the Holders of Securities of such series or any other series; and

                  (10) to comply with the rules or regulations of any securities
exchange or automated quotation system on which any of the Securities may be
listed or traded.

SECTION 902. Supplemental Indentures with Consent of Holders

         With the consent of the Holders of not less than a majority in
aggregate principal amount of all Outstanding Securities affected by such
supplemental indenture (voting as one class), the Partnership and the Trustee
may enter into an indenture or indentures supplemental hereto for the purpose of
adding any provisions to, or changing in any manner or eliminating any of the
provisions of, this Indenture, or modifying in any manner the rights of the
Holders of Securities of such series under this Indenture; provided that the
Partnership and the Trustee may not, without the consent of the Holder of each
Outstanding Security affected thereby,

                  (1) change the Stated Maturity of the principal of, or any
installment of principal of or interest, if any, on, any Security, or reduce the
principal amount thereof or premium, if any, on or the rate of interest thereon
or modify the provisions of this Indenture with respect to the subordination of
the Securities in a manner adverse to the Holders or adversely affect any right
to convert or exchange any Security into any other security, or alter the method
of computation of interest;

                  (2) reduce the percentage in principal amount of Securities
required for any such supplemental indenture or for any waiver provided for in
this Indenture;

                  (3) change the Partnership's obligation to maintain an office
or agency for payment of Securities and the other matters specified herein;

                  (4) impair the right to institute suit for the enforcement of
any payment of principal of, premium, if any, or interest on, any Security;

                  (5) modify the provisions of this Indenture with respect to
the subordination of any Security in a manner adverse to the Holder thereof; or

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<PAGE>   60

                  (6) modify any of the provisions of this Indenture relating to
the execution of supplemental indentures with the consent of Holders of
Securities which are discussed in this Section or modify any provisions relating
to the waiver by Holders of Securities of past defaults and covenants, except to
increase any required percentage or to provide that other provisions of this
Indenture cannot be modified or waived without the consent of the Holder of each
Outstanding Security affected thereby.

         A supplemental indenture which changes or eliminates any covenant or
other provision of this Indenture which has expressly been included solely for
the benefit of one or more particular series of Securities, or which modifies
the rights of the Holders of Securities of such series with respect to such
covenant or other provision, shall be deemed not to affect the rights under this
Indenture of the Holders of Securities of any other series.

         It shall not be necessary for any Act of Holders under this Section to
approve the particular form of any proposed supplemental indenture, but it shall
be sufficient if such Act shall approve the substance thereof.

SECTION 903. Execution of Supplemental Indentures

         In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modifications thereby of
the trusts created by this Indenture, the Trustee shall be entitled to receive,
and (subject to Section 601) shall be fully protected in relying upon, an
Officers' Certificate and an Opinion of Counsel stating that the execution of
such 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.

SECTION 904. Effect of Supplemental Indentures

         Upon the execution of any supplemental indenture under this Article,
this Indenture shall be modified in accordance therewith, and such supplemental
indenture shall form a part of this Indenture for all purposes; and every Holder
of Securities theretofore or thereafter authenticated and delivered hereunder
shall be bound thereby.

SECTION 905. Conformity with Trust Indenture Act

         Every supplemental indenture executed pursuant to this Article shall
conform to the requirements of the Trust Indenture Act as then in effect.

SECTION 906. Reference in Securities to Supplemental Indentures

         Securities of any series authenticated and delivered after the
execution of any supplemental indenture pursuant to this Article may, and shall
if required by the Trustee, bear a notation in form approved by the Trustee as
to any matter provided for in such supplemental indenture. If the Partnership
shall so determine, new Securities of any series so modified as to conform, in
the opinion of the Trustee and the Partnership, to any such supplemental
indenture may be prepared and executed by the Partnership and authenticated and
delivered by the Trustee in exchange for Outstanding Securities of such series.

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<PAGE>   61

                                    ARTICLE X

                                    COVENANTS

SECTION 1001. Payment of Principal, Premium and Interest

         The Partnership covenants and agrees for the benefit of each series of
Securities that it will duly and punctually pay the principal of and any premium
and interest on the Securities of that series in accordance with the terms of
the Securities and this Indenture.

SECTION 1002. Maintenance of Office or Agency

         The Partnership will maintain in each Place of Payment for any series
of Securities an office or agency where Securities of that series may be
presented or surrendered for payment, where Securities of that series may be
surrendered for registration of transfer or exchange and where notices and
demands to or upon the Partnership in respect of the Securities of that series
and this Indenture may be served. The Partnership will 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 Partnership shall fail to maintain any such
required office or 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, and the Partnership hereby
appoints the Trustee as its agent to receive all such presentations, surrenders,
notices and demands.

         The Partnership may also from time to time designate one or more other
offices or agencies where the Securities of one or more series 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 Partnership of its obligation to maintain an
office or agency in each Place of Payment for Securities of any series for such
purposes. The Partnership will 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.

         Except as otherwise specified with respect to a series of Securities as
contemplated by Section 301, the Partnership hereby initially designates as the
Place of Payment for each series of Securities The City of New York, and
initially appoints the Trustee as Paying Agent at its Corporate Trust Office as
the Partnership's office or agency for each such purpose in such city.

SECTION 1003. Money for Securities Payments to Be Held in Trust

         If the Partnership or any of its Subsidiaries shall at any time act as
Paying Agent with respect to any series of Securities, it will, on or before
each due date of the principal of or any premium or interest on any of the
Securities of that series, segregate and hold in trust for the benefit of the
Persons entitled thereto a sum sufficient to pay the principal and any premium
and interest so becoming due until such sums shall be paid to such Persons or
otherwise disposed of as herein provided and will promptly notify the Trustee of
its action or failure so to act.

         Whenever the Partnership shall have one or more Paying Agents for any
series of Securities, it will, on or prior to each due date of the principal of
or any premium or interest on any Securities of that series, deposit with a
Paying Agent a sum sufficient to pay such amount,

                                       55
<PAGE>   62

such sum to be held as provided by the Trust Indenture Act, and (unless such
Paying Agent is the Trustee) the Partnership will promptly notify the Trustee of
its action or failure so to act.

         The Partnership will cause each Paying Agent for any series of
Securities other than the Trustee to execute and deliver to the Trustee an
instrument in which such Paying Agent shall agree with the Trustee, subject to
the provisions of this Section, that such Paying Agent will (1) hold all sums
held by it for the payment of the principal of (and premium, if any) or
interest, if any, on Securities of that series in trust for the benefit of the
Persons entitled thereto until such sums shall be paid to such Persons or
otherwise disposed of as herein provided; (2) give the Trustee notice of any
default by the Partnership (or any other obligor upon the Securities of that
series) in the making of any payment of principal (and premium, if any) or
interest, if any, on the Securities of that series; and (3) during the
continuance of any such default, upon the written request of the Trustee,
forthwith pay to the Trustee all sums held in trust by such Paying Agent for
payment in respect of the Securities of that series.

         The Partnership may at any time, for the purpose of obtaining the
satisfaction and discharge of this Indenture or for any other purpose, pay, or
by Partnership Order direct any Paying Agent to pay, to the Trustee all sums
held in trust by the Partnership or such Paying Agent, such sums to be held by
the Trustee upon the same trusts as those upon which such sums were held by the
Partnership or such Paying Agent; and, upon such payment by any Paying Agent to
the Trustee, such Paying Agent shall be released from all further liability with
respect to such money.

         Any money deposited with the Trustee or any Paying Agent in trust for
the payment of the principal of or any premium or interest on any Security of
any series and remaining unclaimed for two years after such principal, premium
or interest has become due and payable shall be paid to the state which escheat
laws control and the Trustee or any Paying Agent shall be discharged from such
trust; and the Holder of such Security shall thereafter, as an unsecured general
creditor, look only to the state which escheat laws control for payment thereof,
and all liability of the Trustee or such Paying Agent with respect to such trust
money, and all liability of the Partnership as trustee thereof, shall thereupon
cease; provided, however, that the Trustee or such Paying Agent, before being
required to make any such payment, may at the expense of the Partnership cause
to be published once, in an Authorized Newspaper, 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 publication, any unclaimed balance of such money
then remaining will be paid to the state whose escheat laws control.

SECTION 1004. Statement by Officers as to Default

         The Partnership will deliver to the Trustee, within 150 days after the
end of each fiscal year of the Partnership ending after the date hereof, an
Officers' Certificate, stating whether or not to the best knowledge of the
signer or signers thereof the Partnership is in default in the performance and
observance of any of the terms, provisions and conditions of this Indenture
(without regard to any period of grace or requirement of notice provided
hereunder) and, if the Partnership shall be in default, specifying all such
defaults and the nature and status thereof of which they may have knowledge.

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<PAGE>   63

SECTION 1005. Existence

         Subject to Article VIII, the Partnership will do or cause to be done
all things necessary to preserve and keep in full force and effect its
existence, rights (charter and statutory) and franchises; provided, however,
that the Partnership shall not be required to preserve any such right or
franchise if it shall determine that the preservation thereof is no longer
desirable in the conduct of the business of the Partnership.

SECTION 1006. Waiver of Certain Covenants

         The Partnership may omit in any particular instance to comply with any
term, provision or condition set forth in Section 1005, with respect to the
Securities of any series if before the time for such compliance the Holders of
at least a majority in aggregate principal amount of the Outstanding Securities
of all affected series (voting as one class) shall, by Act of such Holders,
either waive such compliance in such instance or generally waive compliance with
such term, provision or condition, but no such waiver shall extend to or affect
such term, provision or condition except to the extent so expressly waived, and,
until such waiver shall become effective, the obligations of the Partnership and
the duties of the Trustee in respect of any such term, provision or condition
shall remain in full force and effect.

         A waiver which changes or eliminates any term, provision or condition
of this Indenture which has expressly been included solely for the benefit of
one or more particular series of Securities, or which modifies the rights of the
Holders of Securities of such series with respect to such term, provision or
condition, shall be deemed not to affect the rights under this Indenture of the
Holders of Securities of any other series.

                                   ARTICLE XI

                            REDEMPTION OF SECURITIES

SECTION 1101. Applicability of Article

         Securities of any series which are redeemable before their Stated
Maturity shall be redeemable in accordance with their terms and (except as
otherwise specified as contemplated by Section 301 for Securities of any series)
in accordance with this Article.

SECTION 1102. Election to Redeem; Notice to Trustee

         The election of the Partnership to redeem any Securities shall be
evidenced by a Board Resolution. In case of any redemption at the election of
the Partnership of less than all the Securities of any series, the Partnership
shall, not less than 35 nor more than 60 days prior to the Redemption Date fixed
by the Partnership (unless a shorter notice shall be satisfactory to the
Trustee), notify the Trustee of such Redemption Date, of the principal amount of
Securities of such series to be redeemed and, if applicable, of the tenor of the
Securities to be redeemed. In the case of any redemption of Securities (1) prior
to the expiration of any restriction on such redemption provided in the terms of
such Securities or elsewhere in this Indenture, or (2) pursuant to an election
of the Partnership which is subject to a condition specified in the terms of

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<PAGE>   64

such Securities, the Partnership shall furnish the Trustee with an Officers'
Certificate evidencing compliance with such restriction or condition.

SECTION 1103. Selection by Trustee of Securities to be Redeemed

         If less than all the Securities of any series are to be redeemed
(unless all the Securities of such series and of a specified tenor are to be
redeemed), the particular Securities to be redeemed shall be selected not more
than 45 days prior to the Redemption Date by the Trustee, from the Outstanding
Securities of such series not previously called for redemption, on a pro rata
basis or by any other method which the Trustee deems fair and appropriate and
which complies with any securities exchange or other applicable requirements for
redemption of portions (equal to the minimum authorized denomination for
Securities of that series or any integral multiple thereof) of the principal
amount of Securities of such series of a denomination larger than the minimum
authorized denomination for Securities of that series.

         The Trustee shall promptly notify the Partnership in writing of the
Securities selected for redemption and, in the case of any Securities selected
for partial redemption, the principal amount thereof to be redeemed.

         For all purposes of this Indenture, unless the context otherwise
requires, all provisions relating to the redemption of Securities shall relate,
in the case of any Securities redeemed or to be redeemed only in part, to the
portion of the principal amount of such Securities which has been or is to be
redeemed.

SECTION 1104. Notice of Redemption

         Notice of redemption shall be given by first-class mail (if
international mail, by air mail), postage prepaid, mailed not less than 30 nor
more than 60 days prior to the Redemption Date, to each Holder of Securities to
be redeemed, at his address appearing in the Security Register.

         All notices of redemption shall state:

                  (1) the Redemption Date,

                  (2) the Redemption Price,

                  (3) if less than all the Outstanding Securities of any series
and of a specified tenor are to be redeemed, the identification (and, in the
case of partial redemption of any Securities, the principal amounts) of the
particular Securities to be redeemed,

                  (4) that on the Redemption Date the Redemption Price will
become due and payable upon each such Security to be redeemed and that interest
thereon will cease to accrue on and after said date,

                  (5) the place or places where such Securities are to be
surrendered for payment of the Redemption Price, and

                  (6) that the redemption is for a sinking fund, if such is the
case.

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<PAGE>   65

         Notice of redemption of Securities to be redeemed shall be given by the
Partnership or, at the Partnership's request, by the Trustee in the name and at
the expense of the Partnership.

SECTION 1105. Deposit of Redemption Price

         On or prior to 10:30 a.m. New York City Time on any Redemption Date,
the Partnership shall deposit with the Trustee or with a Paying Agent (or, if
the Partnership is acting as its own Paying Agent, segregate and hold in trust
as provided in Section 1003) an amount of money sufficient to pay the Redemption
Price of, and (except if the Redemption Date shall be an Interest Payment Date)
accrued interest on, all the Securities which are to be redeemed on that date.

SECTION 1106. Securities Payable on Redemption Date

         Notice of redemption having been given as aforesaid, the Securities so
to be redeemed shall, on the Redemption Date, become due and payable at the
Redemption Price therein specified, and from and after such date (unless the
Partnership shall default in the payment of the Redemption Price and accrued
interest) such Securities shall cease to bear interest. Upon surrender of any
such Security for redemption in accordance with said notice, such Security shall
be paid by the Partnership at the Redemption Price, together with accrued
interest to the Redemption Date; provided, however, that, unless otherwise
specified as contemplated by Section 301, installments of interest whose Stated
Maturity is on or prior to the Redemption Date shall be payable to the Holders
of such Securities, or one or more Predecessor Securities, registered as such at
the close of business on the relevant Record Dates according to their terms and
the provisions of Section 307.

         If any Security called for redemption shall not be so paid upon
surrender thereof for redemption, the principal and any premium shall, until
paid, bear interest from the Redemption Date at the rate prescribed therefor in
the Security.

SECTION 1107. Securities Redeemed in Part

         Any Security which is to be redeemed only in part shall be surrendered
at a Place of Payment therefor (with, if the Partnership or the Trustee so
requires, due endorsement by, or a written instrument of transfer in form
satisfactory to the Partnership and the Trustee duly executed by, the Holder
thereof or his attorney duly authorized in writing), and the Partnership shall
execute, and the Trustee shall authenticate and deliver to the Holder of such
Security without service charge, a new Security or Securities of the same series
and of like tenor, of any authorized denomination as requested by such Holder,
in aggregate principal amount equal to and in exchange for the unredeemed
portion of the principal of the Security so surrendered.

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                                   ARTICLE XII

                                  SINKING FUND

SECTION 1201. Applicability of Article

         The provisions of this Article shall be applicable to any sinking fund
for the retirement of Securities of a series except as otherwise specified as
contemplated by Section 301 for Securities of such series.

         The minimum amount of any sinking fund payment provided for by the
terms of Securities of any series is herein referred to as a "mandatory sinking
fund payment," and any payment in excess of such minimum amount provided for by
the terms of Securities of any series is herein referred to as an "optional
sinking fund payment." If provided for by the terms of Securities of any series,
the cash amount of any sinking fund payment may be subject to reduction as
provided in Section 1202. Each sinking fund payment shall be applied to the
redemption of Securities of any series as provided for by the terms of
Securities of such series.

SECTION 1202. Satisfaction of Sinking Fund Payments with Securities

         The Partnership (1) may deliver Outstanding Securities of a series
(other than any previously called for redemption), and (2) may apply as a credit
Securities of a series which have been redeemed either at the election of the
Partnership pursuant to the terms of such Securities or through the application
of permitted optional sinking fund payments pursuant to the terms of such
Securities, in each case in satisfaction of all or any part of any sinking fund
payment with respect to the Securities of such series required to be made
pursuant to the terms of such Securities as provided for by the terms of such
series; provided that such Securities have not been previously so credited. Such
Securities shall be received and credited for such purpose by the Trustee at the
Redemption Price specified in such Securities for redemption through operation
of the sinking fund and the amount of such sinking fund payment shall be reduced
accordingly.

SECTION 1203. Redemption of Securities for Sinking Fund

         Not less than 45 days prior to each sinking fund payment date for any
series of Securities (unless a shorter period shall be satisfactory to the
Trustee), the Partnership will deliver to the Trustee an Officers' Certificate
specifying the amount of the next ensuing sinking fund payment for that series
pursuant to the terms of that series, the portion thereof, if any, which is to
be satisfied by payment of cash and the portion thereof, if any, which is to be
satisfied by delivering and crediting Securities of that series pursuant to
Section 1202 and stating the basis for such credit and that such Securities have
not been previously so credited, and will also deliver to the Trustee any
Securities to be so delivered. Not less than 30 days before each such sinking
fund payment date the Trustee shall select the Securities to be redeemed upon
such sinking fund payment date in the manner specified in Section 1103 and cause
notice of the redemption thereof to be given in the name of and at the expense
of the Partnership in the manner provided in Section 1104. Such notice having
been duly given, the redemption of such Securities shall be made upon the terms
and in the manner stated in Sections 1106 and 1107.

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                                  ARTICLE XIII

                                   DEFEASANCE

SECTION 1301. Applicability of Article

         The provisions of this Article shall be applicable to each series of
Securities except as otherwise specified as contemplated by Section 301 for
Securities of such series.

SECTION 1302. Legal Defeasance

         In addition to discharge of the Indenture pursuant to Section 401, the
Partnership shall be deemed to have paid and discharged the entire indebtedness
on all the Securities of such a series on the 91st day after the date of the
deposit referred to in Clause (1) below, and the provisions of this Indenture
with respect to the Securities of such series shall no longer be in effect
(except as to (i) rights of registration of transfer and exchange of Securities
of such series and the Partnership's right of optional redemption, if any, (ii)
substitution of mutilated, destroyed, lost or stolen Securities, (iii) rights of
Holders of Securities to receive payments of principal thereof and interest
thereon, upon the original stated due dates therefor or on the specified
redemption dates therefor (but not upon acceleration), and remaining rights of
the holders to receive mandatory sinking fund payments, if any, (iv) the rights,
obligations, duties and immunities of the Trustee hereunder, and the
Partnership's obligations in connection therewith (including, but not limited
to, Section 607), (v) the rights, if any, to convert or exchange the Securities
of such series, (vi) the rights of the Holders of Securities of such series as
beneficiaries hereof with respect to the property so deposited with the Trustee
payable to all or any of them, and (vii) the obligations of the Partnership
under Section 1002), and the Trustee, at the expense of the Partnership, shall,
upon a Partnership Request, execute proper instruments acknowledging the same,
if the conditions set forth below are satisfied (hereinafter, "defeasance"):

         (1) The Partnership has irrevocably deposited or caused to be deposited
with the Trustee as trust funds in trust, for the purposes of making the
following payments, specifically pledged as security for, and dedicated solely
to, the benefit of the Holders of the Securities of such series (A) cash in an
amount, or (B) in the case of any series of Securities the payments on which may
only be made in legal coin or currency of the United States, U.S. Government
Obligations, maturing as to principal and interest at such times and in such
amounts as will insure the availability of cash, or (C) a combination thereof,
certified to be sufficient, in the opinion of a nationally recognized firm of
independent public accountants expressed in a written certification thereof
delivered to the Trustee, to pay (i) the principal and interest and premium, if
any, on all Securities of such series on each date that such principal, interest
or premium, if any, is due and payable or on any Redemption Date established
pursuant to Clause (3) below, and (ii) any mandatory sinking fund payments on
the dates on which such payments are due and payable in accordance with the
terms of the Indenture and the Securities of such series;

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<PAGE>   68

                  (2) The Partnership has delivered to the Trustee an Opinion of
Counsel based on the fact that (A) the Partnership has received from, or there
has been published by, the Internal Revenue Service a ruling, or (B) since the
date hereof, there has been a change in the applicable federal income tax law,
in either case to the effect that, and such opinion shall confirm that, the
Holders of the Securities of such series will not recognize income, gain or loss
for federal income tax purposes as a result of such deposit, defeasance and
discharge and will be subject to federal income tax on the same amount and in
the same manner and at the same times, as would have been the case if such
deposit, defeasance and discharge had not occurred;

                  (3) If the Securities are to be redeemed prior to Stated
Maturity (other than from mandatory sinking fund payments or analogous
payments), notice of such redemption shall have been duly given pursuant to this
Indenture or provision therefor satisfactory to the Trustee shall have been
made;

                  (4) No Event of Default or event which with notice or lapse of
time or both would become an Event of Default shall have occurred and be
continuing on the date of such deposit;

                  (5) Such defeasance shall not cause the Trustee to have a
conflicting interest within the meaning of the Trust Indenture Act (assuming all
Securities are in default within the meaning of such Act);

                  (6) Such defeasance shall not result in a breach or violation
of, or constitute a default under, any other agreement or instrument to which
the Partnership is a party or by which it is bound;

                  (7) Such defeasance shall not result in the trust arising from
such deposit constituting an investment company within the meaning of the
Investment Company Act of 1940, as amended, unless such trust shall be
registered under such Act or exempt from registration thereunder; and

                  (8) The Partnership has delivered to the Trustee an Officers'
Certificate and an Opinion of Counsel, each stating that all conditions
precedent provided for relating to the defeasance contemplated by this provision
have been complied with.

         For this purpose, such defeasance means that the Partnership and any
other obligor upon the Securities of such series shall be deemed to have paid
and discharged the entire debt represented by the Securities of such series,
which shall thereafter be deemed to be "Outstanding" only for the purposes of
Section 1304 and the rights and obligations referred to in Clauses (i) through
(vii), inclusive, of the first paragraph of this Section, and to have satisfied
all its other obligations under the Securities of such series and this Indenture
insofar as the Securities of such series are concerned.

SECTION 1303. Covenant Defeasance

         The Partnership and any other obligor, if any, shall be released on the
91st day after the date of the deposit referred to in Clause (1) below from its
obligations under Sections 704, 801 and 1005 with respect to the Securities of
any series on and after the date the conditions set forth

                                       62
<PAGE>   69

below are satisfied (hereinafter, "covenant defeasance"), and the Securities of
such series shall thereafter be deemed to be not "Outstanding" for the purposes
of any request, demand, authorization, direction, notice, waiver, consent or
declaration or other action 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. For this purpose, such covenant
defeasance means that, with respect to the Securities of such series, the
Partnership may omit to comply with and shall have no liability in respect of
any term, condition or limitation set forth in any such Section, whether
directly or indirectly by reason of any reference elsewhere herein to such
Section or by reason of any reference in such Section to any other provision
herein or in any other document and such omission to comply shall not constitute
a Default or an Event of Default under Section 501, but, except as specified
above, the remainder of this Indenture and the Securities of such series shall
be unaffected thereby. The following shall be the conditions to application of
this Section 1303:

                  (1) The Partnership has irrevocably deposited or caused to be
deposited with the Trustee as trust funds in trust for the purpose of making the
following payments, specifically pledged as security for, and dedicated solely
to, the benefit of the Holders of the Securities of such series, (A) cash in an
amount, or (B) in the case of any series of Securities the payments on which may
only be made in legal coin or currency of the United States, U.S. Government
Obligations, maturing as to principal and interest at such times and in such
amounts as will insure the availability of cash, or (C) a combination thereof,
sufficient, in the opinion of a nationally recognized firm of independent public
accountants expressed in a written certification thereof delivered to the
Trustee, to pay (i) the principal and interest and premium, if any, on all
Securities of such series on each date that such principal, interest or premium,
if any, is due and payable or on any Redemption Date established pursuant to
Clause (2) below, and (ii) any mandatory sinking fund payments on the day on
which such payments are due and payable in accordance with the terms of the
Indenture and the Securities of such series;

                  (2) If the Securities are to be redeemed prior to Stated
Maturity (other than from mandatory sinking fund payments or analogous
payments), notice of such redemption shall have been duly given pursuant to this
Indenture or provision therefor satisfactory to the Trustee shall have been
made;

                  (3) No Event of Default or event which with notice or lapse of
time or both would become an Event of Default shall have occurred and be
continuing on the date of such deposit;

                  (4) The Partnership has delivered to the Trustee an Opinion of
Counsel which shall confirm that the Holders of the Securities of such series
will not recognize income, gain or loss for federal income tax purposes as a
result of such deposit and covenant defeasance and will be subject to federal
income tax on the same amount and in the same manner and at the same time as
would have been the case if such deposit and covenant defeasance had not
occurred;

                  (5) Such covenant defeasance shall not cause the Trustee to
have a conflicting interest within the meaning of the Trust Indenture Act
(assuming all Securities are in default within the meaning of such Act);

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                  (6) Such covenant defeasance shall not result in a breach or
violation of, or constitute a default under, any other agreement or instrument
to which the Partnership is a party or by which it is bound;

                  (7) Such covenant defeasance shall not result in the trust
arising from such deposit constituting an investment company within the meaning
of the Investment Company Act of 1940, as amended, unless such trust shall be
registered under such Act or exempt from registration thereunder; and

                  (8) The Partnership has delivered to the Trustee an Officers'
Certificate and Opinion of Counsel stating that all conditions precedent
provided for relating to the covenant defeasance contemplated by this provision
have been complied with.

SECTION 1304. Application by Trustee of Funds Deposited for Payment of
Securities

         Subject to the provisions of the last paragraph of Section 1003, all
moneys or U.S. Government Obligations deposited with the Trustee pursuant to
Section 1302 or 1303 (and all funds earned on such moneys or U.S. Government
Obligations) shall be held in trust and applied by it to the payment, either
directly or through any Paying Agent (including the Partnership acting as its
own Paying Agent), to the Holders of the particular Securities of such series
for the payment or redemption of which such moneys have been deposited with the
Trustee, of all sums due and to become due thereon for principal and interest;
but such money need not be segregated from other funds except to the extent
required by law. Subject to Sections 1302 and 1303, the Trustee shall promptly
pay to the Partnership upon Partnership Order any moneys held by it at any time,
which, in the opinion of a nationally recognized firm of independent public
accountants expressed in a written certification delivered to the Trustee, are
in excess of the amounts required to effect the defeasance with respect to the
Outstanding Securities in question.

SECTION 1305. Repayment to Partnership

         The Trustee and any Paying Agent promptly shall pay or return to the
Partnership upon Partnership Request any money and U.S. Government Obligations
held by them at any time that are not required for the payment of the principal
of and any interest on the Securities of any series for which money or U.S.
Government Obligations have been deposited pursuant to Section 1302 or 1303,
which, in the opinion of a nationally recognized firm of independent public
accountants expressed in a written certification delivered to the Trustee, are
in excess of the amounts required to effect the defeasance with respect to the
Outstanding Securities in question.

         The provisions of the last paragraph of Section 1003 shall apply to any
money held by the Trustee or any Paying Agent under this Article that remains
unclaimed for two years after the Maturity of any series of Securities for which
money or U.S. Government Obligations have been deposited pursuant to Section
1302 or 1303.

SECTION 1306. Reinstatement.

         If the Trustee or the Paying Agent is unable to apply any money or U.
S. Government Obligations in accordance with this Article by reason of any legal
proceeding or by reason of any

                                       64
<PAGE>   71

order or judgment of any court or governmental authority enjoining, restraining
or otherwise prohibiting such application, the obligations of the Partnership
under this Indenture, and the Securities of the applicable series shall be
revived and reinstated as though no deposit had occurred pursuant to this
Indenture until such time as the Trustee or the Paying Agent is permitted to
apply all such money or U. S. Government Obligations in accordance with this
Article; provided, however, that if the Partnership has made any payment of
principal of or interest on any Securities of such series because of the
reinstatement of its obligations, the Partnership shall be subrogated to the
rights of Holders of such Securities to receive such payment from the money or
U.S. Government Obligations held by the Trustee or the Paying Agent.

                                   ARTICLE XIV

                           SUBORDINATION OF SECURITIES

SECTION 1401. Securities Subordinated to Senior Debt

                  (1) The Partnership, for itself, its successors and assigns,
covenants and agrees, and each Holder of Securities, by his acceptance thereof,
likewise covenants and agrees, that the payment of the principal of (and
premium, if any), and interest on each and all of the Securities is hereby
expressly subordinated, to the extent and in the manner hereinafter set forth,
in right of payment to the prior payment in full of all Senior Debt of the
Partnership.

                  (2) If (A) the Partnership shall default in the payment of any
principal of, premium, if any, or interest, if any, on any Senior Debt of the
Partnership when the same becomes due and payable, whether at maturity or at a
date fixed for prepayment or by declaration of acceleration or otherwise, or (B)
any other default shall occur with respect to Senior Debt of the Partnership and
the maturity of such Senior Debt has been accelerated in accordance with its
terms, then, upon written notice of such default to the Partnership and the
Trustee by the holders of Senior Debt of the Partnership or any trustee
therefor, unless and until, in either case, the default has been cured or waived
or has ceased to exist, or, any such acceleration has been rescinded or such
Senior Debt has been paid in full, no direct or indirect payment (in cash,
property, securities, by set-off or otherwise) shall be made or agreed to be
made on account of the principal of, premium, if any, or interest, if any, on
any of the Securities, or in respect of any redemption, retirement, purchase or
other acquisition of any of the Securities other than those made in capital
stock of the Partnership (or cash in lieu of fractional shares thereof).

                  (3) If any default occurs (other than a default described in
paragraph (2) of this Section 1401) under the Senior Debt of the Partnership,
pursuant to which the maturity thereof may be accelerated immediately without
further notice (except such notice as may be required to effect such
acceleration) or at the expiration of any applicable grace periods (a "Senior
Nonmonetary Default"), then, upon the receipt by the Partnership and the Trustee
of written notice thereof (a "Payment Blockage Notice") from or on behalf of
holders of such Senior Debt of the Partnership specifying an election to
prohibit such payment and other action by the Partnership in accordance with the
following provisions of this paragraph (3), the Partnership may not make any
payment or take any other action that would be prohibited by paragraph (2) of
this Section 1401 during the period (the "Payment Blockage Period")

                                       65
<PAGE>   72

commencing on the date of receipt of such Payment Blockage Notice and ending on
the earlier of (A) the date, if any, on which the holders of such Senior Debt or
their representative notifies the Trustee that such Senior Nonmonetary Default
is cured or waived or ceases to exist or the Senior Debt to which such Senior
Nonmonetary Default relates is discharged or (B) the 179th day after the date of
receipt of such Payment Blockage Notice. Notwithstanding the provisions
described in the immediately preceding sentence, the Partnership may resume
payments on the Securities following such Payment Blockage Period.

SECTION 1402. Distribution on Dissolution, Liquidation and Reorganization;
              Subrogation of Securities

         Upon any distribution of assets of the Partnership upon any
dissolution, winding up, liquidation or reorganization of the Partnership,
whether in bankruptcy, insolvency, reorganization or receivership proceedings or
upon an assignment for the benefit of creditors or any other marshalling of the
assets and liabilities of the Partnership or otherwise (subject to the power of
a court of competent jurisdiction to make other equitable provision reflecting
the rights conferred in this Indenture upon the Senior Debt of the Partnership
and the holders thereof with respect to the Securities and the Holders thereof
by a lawful plan or reorganization under applicable bankruptcy law),

                  (1) the holders of all Senior Debt of the Partnership shall be
entitled to receive payment in full of the principal thereof, premium, if any,
interest, and any interest thereon, due thereon before the Holders of the
Securities are entitled to receive any payment upon the principal, premium,
interest of or on the Securities or interest on overdue amounts thereof; and

                  (2) any payment or distribution of assets of the Partnership
of any kind or character, whether in cash, property or securities, to which the
Holders of the Securities or the Trustee (on behalf of the Holders) would be
entitled except for the provisions of this Article XIV shall be paid by the
liquidating trustee or agent or other person making such payment or
distribution, whether a trustee in bankruptcy, a receiver or liquidating trustee
or otherwise, directly to the holders of Senior Debt of the Partnership or their
representative or representatives or to the trustee or trustees under any
indenture under which any instruments evidencing any of such Senior Debt may
have been issued, ratably according to the aggregate amounts remaining unpaid on
account of the principal of, premium, if any, interest, and any interest
thereon, on the Senior Debt of the Partnership held or represented by each, to
the extent necessary to make payment in full of all Senior Debt of the
Partnership remaining unpaid, after giving effect to any concurrent payment or
distribution to the holders of such Senior Debt; and

                  (3) in the event that, notwithstanding the foregoing, any
payment or distribution of assets of the Partnership of any kind or character,
whether in cash, property or securities, shall be received by the Trustee (on
behalf of the Holders) or the Holders of the Securities before all Senior Debt
of the Partnership is paid in full, such payment or distribution shall be paid
over to the holders of such Senior Debt or their representative or
representatives or to the trustee or trustees under any indenture under which
any instruments evidencing any of such Senior Debt may have been issued, ratably
as aforesaid, for application to the payment of all Senior Debt remaining unpaid
until all such Senior Debt shall have been paid in full, after giving effect to
any concurrent payment or distribution to the holders of such Senior Debt.

                                       66
<PAGE>   73

         Subject to the payment in full of all Senior Debt of the Partnership,
the Holders of the Securities shall be subrogated to the rights of the holders
of such Senior Debt to receive payments or distributions of cash, property or
securities of the Partnership applicable to Senior Debt of the Partnership until
the principal, premium, interest, and any interest thereon, of or on the
Securities shall be paid in full and no such payments or distributions to the
Holders of the Securities of cash, property or securities otherwise
distributable to the Senior Debt of the Partnership shall, as between the
Partnership, its creditors other than the holders of Senior Debt of the
Partnership, and the Holders of the Securities, be deemed to be a payment by the
Partnership to or on account of the Securities. It is understood that the
provisions of this Article XIV are and are intended solely for the purpose of
defining the relative rights of the Holders of the Securities, on the one hand,
and the holders of Senior Debt of the Partnership, on the other hand. Nothing
contained in this Article XIV or elsewhere in this Indenture or in the
Securities is intended to or shall impair, as between the Partnership, its
creditors other than the holders of Senior Debt of the Partnership, and the
Holders of the Securities, the obligation of the Partnership, which is
unconditional and absolute, to pay to the Holders of the Securities the
principal, premium, interest, and any interest thereon, of or on the Securities
as and when the same shall become due and payable in accordance with their
terms, or to affect the relative rights of the Holders of the Securities and
creditors of the Partnership other than the holders of Senior Debt of the
Partnership, nor shall anything herein or in the Securities prevent the Trustee
or the Holder of any Security from exercising all remedies otherwise permitted
by applicable law upon default under this Indenture, subject to the rights, if
any, under this Article XIV of the holders of such Senior Debt in respect of
cash, property or securities of the Partnership received upon the exercise of
any such remedy. Upon any payment or distribution of assets of the Partnership
referred to in this Article XIV, the Trustee shall be entitled to conclusively
rely upon a certificate of the liquidating trustee or agent or other person
making any distribution to the Trustee for the purpose of ascertaining the
persons entitled to participate in such distribution, the holders of Senior Debt
of the Partnership and other indebtedness of the Partnership, the amount thereof
or payable thereon, the amount or amounts paid or distributed thereon, and all
other facts pertinent thereto or to this Article XIV.

         The Trustee, however, shall not be deemed to owe any fiduciary duty to
the holders of Senior Debt of the Partnership. The Trustee shall not be liable
to any such holder if it shall pay over or distribute to or on behalf of Holders
of Securities or the Partnership moneys or assets to which any holder of Senior
Debt of the Partnership shall be entitled by virtue of this Article XIV. The
rights and claims of the Trustee under Section 607 shall not be subject to the
provisions of this Article XIV.

         If the Trustee or any Holder of Securities does not file a proper claim
or proof of debt in the form required in any proceeding referred to above prior
to 30 days before the expiration of the time to file such claim in such
proceeding, then the holder of any Senior Debt of the Partnership is hereby
authorized, and has the right, to file an appropriate claim or claims for or on
behalf of such Holder of Securities.

                                       67
<PAGE>   74

SECTION 1403. Payments on Securities Permitted

         Except for Section 115 of the Indenture (which limits interest to the
maximum amount permissible by law), the provisions of which are incorporated
herein by reference, nothing contained in this Indenture or in any of the
Securities shall (1) affect the obligation of the Partnership to make, or
prevent the Partnership from making, at any time except as provided in Sections
1401 and 1402, payments of principal, premium, interest, and any interest
thereon, of or on the Securities or (2) prevent the application by the Trustee
of any moneys deposited with it hereunder to the payment of or on account of the
principal, premium, interest or other amounts, and any interest thereon, of or
on the Securities unless the Trustee shall have received at its Corporate Trust
Office written notice of any event prohibiting the making of such payment two
Business Days (A) prior to the date fixed for such payment, (B) prior to the
execution of an instrument to satisfy and discharge this Indenture based upon
the deposit of funds under Section 401(1)(b), (C) prior to the execution of an
instrument acknowledging the defeasance of such Securities pursuant to Section
1302 or (D) prior to any deposit pursuant to clause (1) of Section 1303 with
respect to such Securities.

SECTION 1404. Authorization of Holders of Securities to Trustee to Effect
              Subordination

         Each Holder of Securities by his acceptance thereof, whether upon
original issue or upon transfer or assignment, authorizes and directs the
Trustee on his behalf to take such action as may be necessary or appropriate to
effectuate the subordination as provided in this Article XIV and appoints the
Trustee his attorney-in-fact for any and all such purposes.

SECTION 1405. Notices to Trustee

         The Partnership shall give prompt written notice to a Responsible
Officer of the Trustee located at the Corporate Trust Office of the Trustee of
any fact known to the Partnership which would prevent the making of any payment
to or by the Trustee in respect of the Securities. Notwithstanding the
provisions of this Article XIV or any other provisions of this Indenture,
neither the Trustee nor any Paying Agent (other than the Partnership) shall be
charged with knowledge of the existence of any Senior Debt of the Partnership or
of any event which would prohibit the making of any payment of moneys to or by
the Trustee or such Paying Agent, unless and until the Trustee or such Paying
Agent shall have received (in the case of the Trustee, at its Corporate Trust
Office) written notice thereof from the Partnership or from the holder of any
Senior Debt of the Partnership or from the trustee for or representative of any
Senior Debt of the Partnership together with proof satisfactory to the Trustee
of such holding of such Senior Debt or of the authority of such trustee or
representative; provided, however, that if at least two Business Days prior to
the date upon which by the terms hereof any such moneys may become payable for
any purpose (including, without limitation, the payment of the principal,
premium, interest, of or on any Security, or any interest thereon) or the date
on which the Trustee shall execute an instrument acknowledging satisfaction and
discharge of this Indenture or the defeasance of Securities pursuant to Section
1302 or the date on which a deposit pursuant to clause (1) of Section 1303 is
made, the Trustee shall not have received with respect to such moneys or the
moneys deposited with it as a condition to such satisfaction and discharge or
defeasance the notice provided for in this Section 1405, then, anything herein
contained to the contrary notwithstanding, the Trustee shall have full power and
authority to receive such moneys and to

                                       68
<PAGE>   75

apply the same to the purpose for which they were received, and shall not be
affected by any notice to the contrary, which may be received by it on or after
such two Business Days prior to such date. The Trustee shall be entitled to
conclusively rely on the delivery to it of a written notice by a person
representing himself to be a holder of Senior Debt of the Partnership (or a
trustee or representative on behalf of such holder) to establish that such a
notice has been given by a holder of Senior Debt of the Partnership or a trustee
or representative on behalf of any such holder. In the event that the Trustee
determines in good faith that further evidence is required with respect to the
right of any Person as a holder of Senior Debt of the Partnership to participate
in any payment or distribution pursuant to this Article XIV, the Trustee may
request such Person to furnish evidence to the reasonable satisfaction of the
Trustee as to the amount of Senior Debt of the Partnership held by such Person,
the extent to which such Person is entitled to participate in such payment or
distribution and any other facts pertinent to the rights of such Person under
this Article XIV and, if such evidence is not furnished, the Trustee may defer
any payment to such Person pending judicial determination as to the right of
such Person to receive such payment.

SECTION 1406. Trustee as Holder of Senior Debt

         The Trustee shall be entitled to all the rights set forth in this
Article XIV in respect of any Senior Debt of the Partnership at any time held by
it to the same extent as any other holder of Senior Debt of the Partnership and
nothing in this Indenture shall be construed to deprive the Trustee of any of
its rights as such holder.

SECTION 1407. Modification of Terms of Senior Debt

         Any renewal or extension of the time of payment of any Senior Debt of
the Partnership or the exercise by the holders of Senior Debt of the Partnership
of any of their rights under any instrument creating or evidencing such Senior
Debt, including without limitation the waiver of default thereunder, may be made
or done all without notice to or assent from Holders of the Securities or the
Trustee.

         No compromise, alteration, amendment, modification, extension, renewal
or other change of, or waiver, consent or other action in respect of, any
liability or obligation under or in respect of, or of any of the terms,
covenants or conditions of any indenture or other instrument under which any
Senior Debt of the Partnership is outstanding or of such Senior Debt, whether or
not such release is in accordance with the provisions of any applicable
document, shall in any way alter or affect any of the provisions of this Article
XIV or of the Securities relating to the subordination thereof.

         This instrument may be executed with counterpart signature pages or in
any number of counterparts, each of which so executed shall be deemed to be an
original, but all such counterparts shall together constitute but one and the
same instrument.

                                       69
<PAGE>   76

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

                                    KINDER MORGAN ENERGY PARTNERS, L.P.

                                    By: Kinder Morgan G.P., Inc.,
                                          Its General Partner

                                    By:   C. PARK SHAPER
                                       ----------------------------------------
                                    Name:  C. Park Shaper
                                    Title: Vice President and Chief Financial
                                           Officer

                                    FIRST UNION NATIONAL BANK

                                    By:   KEVIN M. DOBRAVA
                                       ----------------------------------------
                                    Name:  Kevin M. Dobrava
                                    Title: Vice President<PAGE>

                                                                     EXHIBIT 4.1

                                MIND C.T.I. LTD.
                                      1998
                                    RESTATED
                               SHARE OPTION PLAN

<PAGE>

                                MIND C.T.I. LTD.
                                     1998
                               SHARE OPTION PLAN

1.  NAME

    This Plan, as amended from time to time, shall be known as the Mind 1998
Share Option Plan (the "Option Plan").

2.  PURPOSE OF THE OPTION PLAN

    The Option Plan is intended as an incentive to retain, in the employ of Mind
C.T.I. Ltd. (the "Company") and its subsidiaries, persons of training,
experience, and ability, to attract new employees, whose services are considered
valuable, to encourage the sense of proprietorship of such persons, and to
stimulate the active interest of such persons in the development and financial
success of the Company by providing them with opportunities to purchase shares
in the Company, pursuant to the Option Plan approved by the board of directors
of the company (the "Board"), which is designed to benefit from, and is made
pursuant to, the provisions of Section 102 of the Israeli Income Tax Ordinance
(New Version) 1961 and any regulations, rules, orders of procedures promulgated
thereunder ("Section 102") with respect to Options granted to employees of the
Company pursuant to the Option Plan (the "Options"). The Option Plan is also
intended to fulfill certain previous obligations of the Company to certain
employees.

3.  ADMINISTRATION OF THE OPTION PLAN

    The Board or a share option committee appointed and maintained by the Board
for such purpose (the "Committee") shall have the power to administer the Option
Plan. Notwithstanding the above, the Board shall automatically have a residual
authority if no Committee shall be constituted or if such Committee shall cease
to operate for any reason whatsoever.

    The Committee shall consist of such number of members (not less than two (2)
in number) as may be fixed by the Board. The Committee shall select one of its
members as its chairman (the "Chairman") and shall hold its meetings at such
times and places as the Chairman shall determine. The Committee shall keep
records of its meetings and shall make such rules and regulations for the
conduct of its business as it shall deem advisable.

    Any member of such Committee shall not be eligible to receive Options under
the Option Plan while serving on the Committee, unless otherwise specified
herein.

    The Committee shall have full power and authority (i) to designate
participants; (ii) to determine the terms and provisions of respective Option
agreements (which need not be identical) including, but not limited to, the
number of shares in the Company to be covered by each Option, provisions
concerning the time or times when and the extent to which the Options may be
exercised and the nature and duration of restrictions as to transferability or
restrictions constituting substantial risk of forfeiture; (iii) to accelerate
the right of an Optionee to exercise, in whole or in part, any previously
granted Option; (iv) to interpret the

<PAGE>

provisions and supervise the administration of the Option Plan; and - (v) to
determine any other matter which is necessary or desirable for, or incidental to
administration of the Option Plan.

    All decisions and selections made by the Board or the Committee pursuant to
the provisions of the Option Plan shall be made by a majority of its members
except that no member of the Board or the Committee shall vote on, or be counted
for quorum purposes, with respect to any proposed action of the Board or the
Committee relating to any Option to be granted to that member. Any decision
reduced to writing and signed by a majority of the members who are authorized to
make such decision shall be fully effective as if it had been made by a majority
at a meeting duly held.

    The interpretation and construction by the Committee of any provision of the
Option Plan or of any Option thereunder shall be final and conclusive unless
otherwise determined by the Board.

    Subject to the Company decision, each member of the Board or the Committee
shall be indemnified and held harmless by the Company against any cost or
expense (including counsel fees) reasonably incurred by him, or any liability
(including any sum paid in settlement of a claim with the approval of the
Company) arising out of any act or omission to act in connection with the Option
Plan unless arising out of such member's own fraud or bad faith, to the extent
permitted by applicable law. Such indemnification shall be in addition to any
rights of indemnification the member may have as a director or otherwise under
the Company's Articles of Association, any agreement, any vote of shareholders
or disinterested directors, insurance policy or otherwise.

4.   DESIGNATION OF PARTICIPANTS

    The persons eligible for participation in the Option Plan as recipients of
Options shall include any employees of the Company or of any subsidiary of the
Company. The grant of an Option hereunder shall neither entitle the recipient
thereof to participate nor disqualify him from participating in, any other grant
of Options pursuant to this Option Plan or any other option or stock plan of the
Company or any of its affiliates. The Company reserves its right to issue an
additional option plan for non-Israeli employees, that the Company may employ in
the future.

    Anything in the Option Plan to the contrary notwithstanding, all grants of
Options to directors and office holders ("Nosei Misra" - as such term is defined
in the Companies Ordinance (New Version), 1983 - the "Companies Ordinance")
shall be authorized and implemented only in accordance with the provisions of
the Companies Ordinance, as in effect from time to time.

5.   TRUSTEE

    The Options which shall be granted to employees of the Company (and/or any
subsidiary thereof) and/or any Shares (as defined below) issued upon exercise of
such Options and/or other shares received subsequently following any realization
of rights, shall be issued to a Trustee nominated by the Committee, and approved
in accordance with the provisions of Section 102 - (the "Trustee") and held for
the benefit of the Optionees for a period of not less than two years (24 months)
from the date of grant, or such other period as shall be required in order to
comply with the provisions of Section 102 as amended from time to time,.

                                     Page 3
<PAGE>

    Anything to the contrary notwithstanding, the Trustee shall not release any
Options and/or any Shares issued upon exercise of Options, prior to the full
payment of the Optionee's tax liabilities arising from Options which were
granted to him and/or any Shares issued upon exercise of such Options.

    Upon receipt of the Option, the Optionee will sign an undertaking to exempt
the Trustee from any liability in respect of any action or decision duly taken
and bona fide executed in relation with the Option Plan, or any Option or Share
granted to him thereunder.

6.   SHARES RESERVED FOR THE OPTION PLAN

     Subject to adjustments as set forth in Section 8 below, a total of
     2,308,000 (two million, three hundred and eight thousand) Ordinary Shares,
     of NIS 0.01 par value (the "Shares") shall be subject to the Option Plan.
     The Shares subject to the Option Plan are hereby reserved for such purpose
     in the authorized share capital of the Company and may only be issued in
     accordance with the terms hereof. Any of such Shares which may remain
     unissued and which are not subject to outstanding Options at the
     termination of the Option Plan shall cease to be reserved for the purpose
     of the Option Plan, but until termination of the Option Plan the Company
     shall at all times reserve a sufficient number of Shares to meet the
     requirements of the Option Plan. Should any Option for any reason expire or
     be canceled prior to its exercise or relinquishment in full, the Shares
     therefore subject to such Option may again be subjected to an Option under
     the Option Plan.

7.   OPTION PRICE

     7.1. The purchase price of each Share subject to an Option or any portion
          thereof shall be determined by the Committee in its sole and absolute
          discretion in accordance with applicable law, subject to any
          guidelines as may be determined by the Board from time to time. As of
          the date of adoption of the Option Plan, the Board has instructed the
          Committee to determine the purchase price of each Share, at a price
          which is not less then the price per share, according to the most
          recent evaluation of the Company in any investment or other capital
          transaction.

     7.2. The Option price shall be payable upon the exercise of the Option in
          a form satisfactory to the Committee and conforming to Section 102,
          including without limitation, by cash or cheque. The Committee shall
          have the authority to postpone the date of payment on such terms as it
          may determine.

8.   ADJUSTMENTS

     Upon the occurrence of any of the following described events, Optionee's
     rights to purchase Shares under the Option Plan shall be adjusted as
     hereafter provided:

     8.1. If the outstanding shares of the Company shall at anytime be changed
          or exchanged by declaration of a stock dividend, stock split,
          combination or exchange of shares, recapitalization, or any other like
          event by or of the Company, and as often as the same shall occur, then
          the number, class and kind of Shares subject to this Option Plan or
          subject to any Options therefore

                                     Page 4
<PAGE>

          granted, and the Option prices, shall be appropriately and equitably
          adjusted so as to maintain the proportionate number of Shares without
          changing the aggregate Option price, provided, however, that no
          adjustment shall be made by reason of the distribution of subscription
          rights on outstanding stock or by reason of conversion of any
          Management Shares or preferred shares of the Company into Ordinary
          Shares (regardless of the ratio of such conversion). Upon occurrence
          of any of the foregoing, the class and aggregate number of Shares
          issuable pursuant to the Option Plan (as set forth in paragraph 6
          hereof), in respect of which Options have not yet been exercised,
          shall be appropriately adjusted, all as will be determined by the
          Board who's determination shall be final.

          Anything herein to the contrary notwithstanding, if prior to the
          completion of an initial public offering of the Company's securities
          ("IPO"), all or substantially all of the shares of the Company are to
          be sold, or upon a merger or reorganization or the like, the shares of
          the Company, or any class thereof, are to be exchanged for securities
          of another Company, then in such event, each Optionee shall be obliged
          to sell or exchange, as the case may be, the shares such Optionee
          purchased under the Option Plan, in accordance with the instructions
          then issued by the Board whose determination shall be final. Upon the
          occurrence of any such transactions, all unexersized Options shall be
          immediately and completely terminated.

9.   TERM AND EXERCISE OF OPTIONS

     9.1. Options shall be exercised by the Optionee by giving written notice
          to the Company, in such form and method as may be determined by the
          Company and the Trustee and conforming Section 102, which exercise
          shall be effective upon receipt of such notice by the Company at its
          principal office. The notice shall specify the number of Shares with
          respect to which the Option is being exercised.

     9.2. Each Option granted under this Option Plan shall be exercisable only
          following the vesting dates and for the number of Shares as shall be
          provided in Exhibit B to the Option agreement (the "Expiration Date").
          However no Option shall be exercisable after the Expiration Date, as
          defined for each Optionee in his Option agreement.

     9.3. Options granted under the Option Plan shall not be transferable by
          Optionees other than by will or laws of descent and distribution, and
          during an Optionee's lifetime shall be exercisable only by that
          Optionee.

     9.4. The Options may be exercised by the Optionee in whole at any time or
          in part from time to time, to the extent that the Options become
          vested, prior to the Expiration Date, and provided that, subject to
          the provisions of Section 9.6 below, the Optionee is an employee of
          the Company or any of its subsidiaries, at all times during the period
          beginning with the granting of the Option and ending upon the date of
          exercise of the relevant Options.

     9.5. Subject to the provisions of Section 9.6 below, in the event of
          termination of the Optionee's employment with the Company or any of
          its subsidiaries, all Options granted to him, which have not yet been
          exercised, will immediately

                                     Page 5
<PAGE>

          expire. A notice of termination of employment by either the Company or
          the Optionee shall be deemed to constitute termination of employment.

     9.6. Notwithstanding anything to the contrary hereinabove, an Option may
          be exercised after the date of termination of Optionee's employment
          with the Company or any subsidiary of the Company during an additional
          period of time beyond the date of such termination, but only with
          respect to the number of Options vested at the time of such
          termination, according to the vesting periods of the Options, set
          forth in Section 10 below, if: (i) termination is without Cause (as
          defined below), for a period of three (3) months from the termination
          of Employment, (ii) termination is the result of death or disability
          of the Optionee, in which event any Options still in force and
          unexpired may be exercised within a period of one year from the date
          of termination, but only with respect to the number of Options already
          vested at the time of such termination according to the vesting
          periods of the Options. The term "Cause" shall mean any action,
          omission or state of affairs related to the Optionee which the Board
          decides, in its sole discretion, is against the interests of the
          Company.

     9.7. The holders of Options shall not have any of the rights or privileges
          of shareholders of the Company in respect of any Shares purchasable
          upon the exercise of any part of an Option unless and until, following
          exercise but subject always to the provisions of Section 5 above,
          registration of the Optionee as holder of such Shares in the Company's
          register of members.

     9.8. Any form of Option agreement authorized by the Option Plan may
          contain such other provisions as the Committee may, from time to time,
          deem advisable.

10.  VESTING OF OPTIONS

     Notwithstanding anything to the contrary, any Option may be exercised only
     to the extent that such Option was vested. Each option granted hereunder
     shall be vested, in whole or in part, as determined by the Committee in its
     sole and absolute discretion, provided that the Optionee is an employee of
     the Company or any of its subsidiaries, at all times during the period
     beginning with the granting of the Option and ending upon the date of
     vesting of any portion of the Option.

11.  DIVIDENDS

     With respect to all Shares (in contrary to unexercised Options) issued upon
     the exercise of Options purchased by the Optionee and held by the Trustee,
     the Optionee shall be entitled to receive dividends in accordance with the
     quantity of such Shares, and subject to any applicable taxation on
     distribution of dividends. During the period in which Shares issued to the
     Trustee on behalf of an Optionee are held by the Trustee, the cash
     dividends paid with respect thereto shall be paid directly to the Optionee.

12.  ASSIGNABILITY AND SALE OF OPTIONS

     No Option, purchasable hereunder, whether fully paid or not, shall be
     assignable, transferable or given as collateral or any right with respect
     to them given to any third party whatsoever, and during the lifetime of the
     Optionee each and all of such

                                     Page 6
<PAGE>

     Optionee's rights to purchase Shares hereunder shall be exercisable only by
     the Optionee.

     As long as the Shares are held by the Trustee in favor of the Optionee,
     then all rights of the optionee possessed in the Shares are personal, can
     not be transferred, assigned, pledged or mortgaged, other than by will or
     laws of descent and distribution.

13.  TERM OF THE OPTION PLAN

     The Option Plan shall be effective as of the day it was adopted by the
     Board and shall terminate at the end of ____ months from such day of
     adoption.

14.  AMENDMENTS OR TERMINATION

     The Board may, at any time and from time to time, amend, alter or
     discontinue the Option Plan, except that no amendment or alteration shall
     be made which would impair the rights of the holder of any Option therefore
     granted, without his consent.

15.  GOVERNMENT REGULATIONS

     The Option Plan, and the granting and exercise of Options hereunder, and
     the obligation of the Company to sell and deliver Shares under such
     Options, shall be subject to all applicable laws, rules, and regulations,
     whether of the State of Israel or of the United States or any other State
     having jurisdiction over the Company and the Optionee, including the
     registration of the Shares under the United States Securities Act of 1933,
     and to such approvals by any governmental agencies or national securities
     exchanges as may be required.

16.  CONTINUANCE OF EMPLOYMENT

     Neither the Option Plan nor the Option agreement with the Optionee shall
     impose any obligation on the Company or a subsidiary thereof, to continue
     any Optionee in its employ, and nothing in the Option Plan or in any Option
     granted pursuant thereto shall confer upon any Optionee any right to
     continue in the employ of the Company or a subsidiary thereof or restrict
     the right of the Company or a subsidiary thereof to terminate such
     employment at any time.

17.  GOVERNING LAW AND JURISDICTION

     This Option Plan shall be governed by and construed and enforced in
     accordance with the laws of the State of Israel applicable to contracts
     made and to be performed therein, without giving effect to the principles
     of conflict of laws. The competent courts of Tel-Aviv, Israel shall have
     sole jurisdiction in any matters pertaining to this Option Plan.

18.  ARBITRATION

     Any dispute in relation with this Option Plan and the exercise of rights
     thereunder, shall be brought to arbitration of the legal counsel to the
     Company (the "Arbitrator"), who shall decide on such dispute in accordance
     with the provisions of

                                     Page 7
<PAGE>

     the Arbitration Law - 1968 and its supplement. The decision of the
     Arbitrator shall be final and shall bind the Company and the Optionee.

19.  TAX CONSEQUENCES

     Any tax consequences arising from the grant or exercise of any Option, from
     the payment for Shares covered thereby or from any other event or act (of
     the Company, the Trustee or the Optionee), hereunder, shall be borne solely
     by the Optionee. The Company and/or the Trustee shall withhold taxes
     according to the requirements under the applicable laws, rules, and
     regulations, including withholding taxes at source. Furthermore, the
     Optionee shall agree to indemnify the Company and the Trustee and hold them
     harmless against and from any and all liability for any such tax or
     interest or penalty thereon, including without limitation, liabilities
     relating to the necessity to withhold, or to have withheld, any such tax
     from any payment made to the Optionee.

     The Committee and/or the Trustee shall not be required to release any Share
     certificate to an Optionee until all required payments have been fully
     made.

20.  NON-EXCLUSIVITY OF THE OPTION  PLAN

     The adoption of the Option Plan by the Board shall not be construed as
     amending, modifying or rescinding any previously approved incentive
     arrangements or as creating any limitations on the power of the Board to
     adopt such other incentive arrangements as it may deem desirable,
     including, without limitation, the granting of stock Options otherwise then
     under the Option Plan, and such arrangements may be either applicable
     generally or only in specific cases. For the avoidance of doubt, prior
     grants of options to employees of the Company under their employment
     agreements, and not in the framework of any previous option plan, shall not
     be deemed an approved incentive arrangement for the purpose of this
     Section.

21.  MULTIPLE AGREEMENTS

The terms of each Option may differ from other Options granted under the Option
Plan at the same time, or at any other time. The Committee may also grant more
than one Option to a given Optionee during the term of the Option Plan, either
in addition to, or in substitution for, one or more Options previously granted
to that Optionee.

                                     Page 8

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