Exhibit 10.17
Execution Copy
 
AMENDED AND RESTATED
AGREEMENT OF LIMITED PARTNERSHIP
OF
SABINE PROPYLENE PIPELINE L.P.
 

 

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AMENDED AND RESTATED
AGREEMENT OF LIMITED PARTNERSHIP
OF
SABINE PROPYLENE PIPELINE L.P.
TABLE OF CONTENTS

             
 
           
 
  ARTICLE I: DEFINITIONS        
 
           
1.01
  Certain Definitions     2  
1.02
  Other Definitions     4  
1.03
  Construction     4  
 
           
 
  ARTICLE II: ORGANIZATION        
 
           
2.01
  Formation and Continuation     4  
2.02
  Name     4  
2.03
  Offices     4  
2.04
  Purposes     4  
2.05
  Certificate; Foreign Qualification     5  
2.06
  Term     5  
2.07
  Merger     5  
 
           
 
  ARTICLE III: PARTNERS AND PARTNERSHIP INTERESTS        
 
           
3.01
  Partners     5  
3.02
  No Dispositions of Partnership Interests     5  
3.03
  Additional Partnership Interests     5  
 
           
 
  ARTICLE IV: CAPITAL CONTRIBUTIONS        
 
           
4.01
  Initial Contributions     6  
4.02
  Subsequent Contributions     6  
4.03
  Advances by Partners     6  
4.04
  Capital Accounts     6  
 
           
 
  ARTICLE V: ALLOCATIONS AND DISTRIBUTIONS        
 
           
5.01
  Allocations     7  
5.02
  Distributions     8  
 
           
 
  ARTICLE VI: MANAGEMENT AND OPERATION        
 
           
6.01
  Management of Partnership Affairs     9  
6.02
  Compensation     9  
6.03
  Standards and Conflicts     9  
6.04
  Indemnification     10  
6.05
  Power of Attorney     10  
 
           
 
  ARTICLE VII: RIGHTS OF LIMITED PARTNERS        
 
           
7.01
  Information     10  
7.02
  Withdrawal     11  
7.03
  Consents and Voting     11  

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7.04
  Meetings     11  
 
           
 
  ARTICLE VIII: TAXES        
 
           
8.01
  Tax Returns     12  
8.02
  Tax Elections     12  
8.03
  Tax Matters Partner     12  
 
           
 
  ARTICLE IX: BOOKS, RECORDS, REPORTS, AND BANK ACCOUNTS        
 
           
9.01
  Maintenance of Books     12  
9.02
  Reports     12  
9.03
  Accounts     13  
 
           
 
  ARTICLE X: WITHDRAWAL, BANKRUPTCY, ETC. OF GENERAL PARTNER        
 
           
10.01
  Withdrawal, Bankruptcy, Etc. of General Partner     13  
10.02
  Conversion of Interest     14  
 
           
 
  ARTICLE XI: DISSOLUTION, LIQUIDATION, AND TERMINATION        
 
           
11.01
  Dissolution     14  
11.02
  Liquidation and Termination     14  
11.03
  Termination     16  
 
           
 
  ARTICLE XII: GENERAL PROVISIONS        
 
           
12.01
  Offset     16  
12.02
  Notices     16  
12.03
  Entire Agreement; Supersedure     16  
12.04
  Effect of Waiver or Consent     16  
12.05
  Amendment or Modification     16  
12.06
  Binding Effect     16  
12.07
  Governing Law; Severability     16  
12.08
  Further Assurances     17  
12.09
  Waiver of Certain Rights     17  
12.10
  Indemnification     17  
12.11
  Counterparts     17  

EXHIBITS:

      A            Names, Addresses and Sharing Ratios of Partners

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AMENDED AND RESTATED
AGREEMENT OF LIMITED PARTNERSHIP
OF
SABINE PROPYLENE PIPELINE L.P.
     This AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF SABINE
PROPYLENE PIPELINE L.P., a Texas limited partnership (the “Partnership”) is made
and entered into as of February 5, 2007, (the “Effective Date”) by and among the
Partners (as defined below).
RECITALS
     WHEREAS, the Partnership was formed under the laws of the State of Texas by
the Original General Partner’s filing with the Secretary of State of Texas on
August 10, 2000 an Original Certificate of Limited Partnership and the execution
by the Original General Partner and Original Limited Partner of an Agreement of
Limited Partnership (as amended to date, the “Original Agreement”) effective as
of August 10, 2000 (the “Organization Date”);
     WHEREAS, the Original General Partner entered into that certain
Contribution, Conveyance and Assumption Agreement by and among DEP Holdings,
LLC, Duncan Energy Partners L.P. (“MLP”), DEP OLPGP, LLC and DEP Operating
Partnership, L.P. on the Effective Date (the “Contribution Agreement”) whereby
the Original General Partner contributed its 66% general partner interest in the
Partnership (the “GP Interest”) to MLP as consideration for the receipt of
proceeds raised in the initial public offering of MLP;
     WHEREAS, pursuant to the Contribution Agreement, MLP contributed the GP
interest to the General Partner as a capital contribution;
     WHEREAS, the General Partner and the Limited Partners now desire to amend
the Original Agreement to reflect (i) the contribution of the GP Interest from
the Original General Partner to the General Partner, (ii) the withdrawal of the
Original General Partner as general partner of the Partnership, (iii) the
conversion of the Original General Partner’s remaining 33% of the General
Partner Interests into Limited Partner Interests and admittance of EPD OLP to
the Partnership as a limited partner and (iv) the substitution of the General
Partner as the general partner of the Partnership; and
     WHEREAS, the parties now desire to amend and restate the Original Agreement
to set forth their agreements with respect to this Partnership as set forth
below and intend for this Agreement to supersede the Original Agreement.
     NOW, THEREFORE, in consideration of the mutual covenants, rights, and
obligations set forth in this Agreement, the benefits to be derived from them,
and other good and valuable consideration, the receipt and the sufficiency of
which each Partner acknowledges and confesses, the Partners agree as follows:

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ARTICLE I: DEFINITIONS
     1.01 Certain Definitions. As used in this Agreement, the following terms
have the following meanings:
     “Act” means the Texas Revised Limited Partnership Act and any successor
statute, as amended from time to time.
     “Agreement” means this Amended and Restated Agreement of Limited
Partnership of Sabine Propylene Pipeline L.P., as it may be amended, modified or
supplemented in accordance with the provisions below.
     “Allocation Regulations” means Treas. Reg. §§ 1.704-1(b), 1.704-2 and
1.703-3 (including any temporary regulations) as such regulations may be amended
and in effect from time to time and any corresponding provision of succeeding
regulations.
     “Bankrupt Partner” means any Partner (whether the General Partner or a
Limited Partner) with respect to which an event of the type described in
Section 4.02(a)(4) or (5) of the Act has occurred, subject to the lapsing of any
period of time therein specified.
     “Business Day” means any day other than a Saturday, a Sunday, or a holiday
on which banks in the State of Texas generally are closed.
     “Capital Contribution” means any contribution by a Partner to the capital
of the Partnership.
     “Carrying Value” means (a) with respect to property contributed to the
Partnership, the fair market value of such property at the time of contribution
reduced (but not below zero) by all depreciation, depletion (computed as a
separate item of deduction), amortization and cost recovery deductions charged
to the Partners’ capital accounts, (b) with respect to any property whose value
is adjusted pursuant to the Allocation Regulations, the adjusted value of such
property reduced (but not below zero) by all depreciation and cost recovery
deductions charged to the Partners’ capital accounts and (c) with respect to any
other Partnership property, the adjusted basis of such property for federal
income tax purposes, all as of the time of determination.
     “Certificate” means the Certificate of Amendment of Certificate of Limited
Partnership of the Partnership, as filed with the Secretary of State of the
State of Texas on February 5, 2007, and as amended or restated from time to
time.
     “Code” means the Internal Revenue Code of 1986 and any successor statute,
as amended from time to time.
     “Contribution Agreement” has the meaning set forth in the recitals.
     “DEP OLP” means DEP Operating Partnership, L.P., a Delaware limited
partnership.

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     “Dispose” or “Disposition” means a sale, assignment, transfer, exchange,
mortgage, pledge, grant of a security interest, or other disposition or
encumbrance, or the acts of the foregoing.
     “Effective Date” has the meaning set forth in the first paragraph of this
Agreement.
     “EPD OLP” means Enterprise Products Operating L.P., a Delaware limited
partnership.
     “General Partner” means (a) DEP OLP or (b) any other Person subsequently
admitted to the Partnership as the general partner as provided in this
Agreement, but does not include any Person who has ceased to be the general
partner in the Partnership.
     “GP Interest” has the meaning set forth in the recitals.
     “Limited Partner” means EPD OLP, PPP or any other Person subsequently
admitted to the Partnership as a limited partner as provided in this Agreement,
but does not include any Person who has ceased to be a limited partner in the
Partnership.
     “MLP” has the meaning set forth in the recitals.
     “Omnibus Agreement” means the Omnibus Agreement between EPD OLP, DEP
Holdings, LLC, MLP, DEP OLPGP, LLC, DEP OLP, Enterprise Lou-Tex Propylene
Pipeline L.P., Acadian Gas, LLC, Mont Belvieu Caverns, LLC, South Texas NGL
Pipelines, LLC and the Partnership, dated February 5, 2007, as amended or
restated from time to time.
     “Original Agreement” means the Agreement of Limited Partnership of the
Partnership as of the Organization Date.
     “Organization Date” has the meaning given that term in the recitals.
     “Original Certificate” means the Certificate of Limited Partnership as
filed with the Secretary of State of the State of Texas on August 10, 2000.
     “Original General Partner” means EPD OLP.
     “Original Limited Partner” means PPP.
     “Partner” means the General Partner or any Limited Partner.
     “Partnership” has the meaning given that term in the first paragraph.
     “Partnership Interest” means the interest of a Partner in the Partnership,
including, without limitation, rights to distributions (liquidating or
otherwise), allocations, information, and to consent or approve.

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     “Person” means an individual or a corporation, firm, limited liability
company, partnership, joint venture, unincorporated organization, association,
government agency or political subdivision thereof or other entity.
     “PPP” means Propylene Pipeline Partnership, L.P., a Texas limited
partnership.
     “Required Interest” means one or more Limited Partners having among them
more than 50% of the Sharing Ratios of all Limited Partners in their capacities
as such.
     “Sharing Ratio” means (a) in the case of a Partner executing this Agreement
as of the date of this Agreement, the percentage specified for that Partner as
its Sharing Ratio on Exhibit A, and (b) in the case of a Partnership Interest
issued under Section 10.01(c) or 10.02, the Sharing Ratio established in that
provision.
     1.02 Other Definitions. Other terms defined in this Agreement have the
meanings so given them.
     1.03 Construction. Whenever the context requires, the gender of all words
used in this Agreement includes the masculine, feminine, and neuter. All
references to Articles and Sections refer to articles and sections of this
Agreement, and all references to Exhibits are to Exhibits attached to this
Agreement, each of which is made a part of this Agreement for all purposes.
ARTICLE II: ORGANIZATION
     2.01 Formation and Continuation. The Partnership has been previously formed
as a limited partnership pursuant to the provisions of the Act. The General
Partner and the Limited Partners hereby amend and restate in its entirety the
Original Agreement. Subject to the provisions of this Agreement, the General
Partner and the Limited Partners hereby continue the Partnership as a limited
partnership pursuant to the provisions of the Act. This amendment and
restatement shall become effective on the date of this Agreement.
     2.02 Name. The name of the Partnership is “Sabine Propylene Pipeline L.P.”
and all Partnership business must be conducted in that name or such other names
that comply with applicable law as the General Partner may select from time to
time.
     2.03 Offices. The registered office of the Partnership in the State of
Texas shall be at such place as the General Partner may designate from time to
time. The registered agent for service of process on the Partnership in the
State of Texas or any other jurisdiction shall be such Person or Persons as the
General Partner may designate from time to time. The principal office of the
Partnership in the United States shall be at such place as the General Partner
may designate from time to time, which need not be in the State of Texas, and
the Partnership shall maintain records there as required by the Act. The
Partnership may have such other offices as the General Partner may designate
from time to time.
     2.04 Purposes. The purposes of the Partnership are to engage in any
business or activity that now or in the future may be necessary, incidental,
proper, advisable, or convenient to accomplish the foregoing purpose (including,
without limitation, obtaining appropriate

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financing) and that is not forbidden by the law of the jurisdiction in which the
Partnership engages in that business.
     2.05 Certificate; Foreign Qualification. The General Partner has executed
and caused to be filed with the Secretary of State of Texas a Certificate,
amending the Original Certificate filed on August 10, 2000 and containing
information required by the Act. Prior to the Partnership’s conducting business
in any jurisdiction other than Texas, the General Partner shall cause the
Partnership to comply, to the extent those matters are reasonably within the
control of the General Partner, with all requirements necessary to qualify the
Partnership as a foreign limited partnership (or a partnership in which the
Limited Partners have limited liability) in that jurisdiction. At the request of
the General Partner, each Limited Partner shall execute, acknowledge, swear to,
and deliver all certificates and other instruments conforming with this
Agreement that are necessary or appropriate to form, qualify, continue, and
terminate the Partnership as a limited partnership under the law of the State of
Texas and to qualify, continue, and terminate the Partnership as a foreign
limited partnership (or a partnership in which the Limited Partners have limited
liability) in all other jurisdictions in which the Partnership may conduct
business, and to this end the General Partner may use the power of attorney
described in Section 6.05.
     2.06 Term. The Partnership commenced on August 10, 2000, when the Original
Certificate first was properly filed with the Secretary of State of Texas and
shall continue in existence until its business and affairs are wound up
following dissolution automatically at the close of Partnership business on
December 31, 2050 unless (i) the Partners unanimously agree to extend the term
of the Partnership for a longer duration or (ii) the Partnership is earlier
dissolved pursuant to the provisions hereof.
     2.07 Merger. The Partnership may engage in mergers, but only with the
unanimous consent of the Partners.
ARTICLE III: PARTNERS AND PARTNERSHIP INTERESTS
     3.01 Partners. The general partner is DEP OLP, which is admitted to the
Partnership as a general partner effective with the filing of the Certificate
with the Secretary of State of the State of Texas. The limited partners are EPD
OLP, which is admitted to the Partnership as a limited partner effective with
the filing of the Certificate with the Secretary of State of the State of Texas
and PPP, which was admitted to the Partnership as a limited partner effective
with the commencement of the Partnership.
     3.02 No Dispositions of Partnership Interests. Except as set forth in
Article 4 of the Omnibus Agreement, the Partnership Interests may not be
Disposed of, and any purported Disposition of the Partnership Interests shall be
null and void.
     3.03 Additional Partnership Interests. Additional Partnership Interests may
be created and issued to new or existing Partners only in compliance with the
provisions in Article 5 of the Omnibus Agreement. The Partnership shall be bound
by the terms of such Omnibus Agreement.

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ARTICLE IV: CAPITAL CONTRIBUTIONS
     4.01 Initial Contributions. The Partners have previously contributed
(whether through actual contributions or as a result of their acquisition of
their Partnership Interests from MLP) to the Partnership those assets which are
currently listed as assets of the Partnership on the Partnership’s books and
records.
     4.02 Subsequent Contributions. Additional Capital Contributions shall be
made only with the unanimous consent of the Partners.
     4.03 Advances by Partners. If the Partnership does not have sufficient cash
to pay its obligations, the General Partner, or any Limited Partner(s) that may
agree to do so with the General Partner’s consent, may advance all or part of
the needed funds to or on behalf of the Partnership. Payment by the General
Partner on account of liability as a matter of law for Partnership obligations
is deemed to be an advance under this Section 4.03. An advance described in this
Section 4.03 constitutes a loan from the Partner to the Partnership, bears
interest at a rate determined by the General Partner (and, if applicable, the
Limited Partner making the advance) from the date of the advance until the date
of payment, and is not a Capital Contribution.
     4.04 Capital Accounts. A capital account shall be established and
maintained for each Partner. Each Partner’s capital account (a) shall be
increased by (i) the amount of money contributed by that Partner to the
Partnership, (ii) the fair market value of property contributed by that Partner
to the Partnership (net of liabilities secured by the contributed property that
the Partnership is considered to assume or take subject to under section 752 of
the Code), and (iii) allocations to that Partner of Partnership income and gain
(or items of income and gain), including income and gain exempt from tax and
income and gain described in Treas. Reg. § 1.704-1(b)(2)(iv)(g), but excluding
income and gain described in Treas. Reg. § 1.704-1(b)(4)(i), and (b) shall be
decreased by (i) the amount of money distributed to that Partner by the
Partnership, (ii) the fair market value of property distributed to that Partner
by the Partnership (net of liabilities secured by the distributed property that
the Partner is considered to assume or take subject to under section 752 of the
Code), (iii) allocations to that Partner of expenditures of the Partnership
described in section 705(a)(2)(B) of the Code, and (iv) allocations of
Partnership loss and deduction (or items of loss and deduction), including loss
and deduction described in Treas. Reg. § 1.704-1(b)(2)(iv)(g), but excluding
items described in clause (b)(iii) above and loss or deduction described in
Treas. Reg. § 1.704-1(b)(4)(i) or § 1.704-1(b)(4)(iii). The Partners’ capital
accounts also shall be maintained and adjusted as permitted by the provisions of
Treas. Reg. § 1.704-1(b)(2)(iv)(f) and as required by the other provisions of
Treas. Reg. §§ 1.704-1(b)(2)(iv) and 1.704-1(b)(4), including adjustments to
reflect the allocations to the Partners of depreciation, depletion,
amortization, and gain or loss as computed for book purposes rather than the
allocation of the corresponding items as computed for tax purposes, as required
by Treas. Reg. § 1.704-1(b)(2)(iv)(g). A Partner that has more than one
Partnership Interest shall have a single capital account that reflects all its
Partnership Interests, regardless of the class of Partnership Interests owned by
that Partner and regardless of the time or manner in which those Partnership
Interests were acquired.

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ARTICLE V:ALLOCATIONS AND DISTRIBUTIONS
     5.01 Allocations.
          (a) Except as otherwise set forth in Section 5.01(b), for purposes of
maintaining the capital accounts and in determining the rights of the Partners
among themselves, all items of income, gain, loss, deduction, and credit of the
Partnership shall be allocated among the Partners in accordance with their
Sharing Ratios.
          (b) The following special allocations shall be made prior to making
any allocations provided for in 5.01(a) above:
     (i) Minimum Gain Chargeback. Notwithstanding any other provision hereof to
the contrary, if there is a net decrease in Minimum Gain (as generally defined
under Treas. Reg. § 1.704-1 or § 1.704-2) for a taxable year (or if there was a
net decrease in Minimum Gain for a prior taxable year and the Partnership did
not have sufficient amounts of income and gain during prior years to allocate
among the Partners under this subsection 5.01(b)(i), then items of income and
gain shall be allocated to each Partner in an amount equal to such Partner’s
share of the net decrease in such Minimum Gain (as determined pursuant to Treas.
Reg. § 1.704-2(g)(2)). It is the intent of the Partners that any allocation
pursuant to this subsection 5.01(b)(i) shall constitute a “minimum gain
chargeback” under Treas. Reg. § 1.704-2(f) and shall be interpreted consistently
therewith.
     (ii) Partner Nonrecourse Debt Minimum Gain Chargeback. Notwithstanding any
other provision of this Article 5, except subsection 5.01(b)(i), if there is a
net decrease in Partner Nonrecourse Debt Minimum Gain (as generally defined
under Treas. Reg. § 1.704-1 or § 1.704-2), during any taxable year, any Partner
who has a share of the Partner Nonrecourse Debt Minimum Gain shall be allocated
such amount of income and gain for such year (and subsequent years, if
necessary) determined in the manner required by Treas. Reg. § 1.704-2(i)(4) as
is necessary to meet the requirements for a chargeback of Partner Nonrecourse
Debt Minimum Gain.
     (iii) Qualified Income Offset. Except as provided in subsection 5.01(b)(i)
and (ii) hereof, in the event any Partner unexpectedly receives any adjustments,
allocations or distributions described in Treas. Reg. Sections
1.704-1(b)(2)(i)(d)(4), 1.704-1(b)(2)(ii)(d)(5), or 1.704-1(b)(2)(ii)(d)(6),
items of Partnership income and gain shall be specifically allocated to such
Partner in an amount and manner sufficient to eliminate, to the extent required
by the Allocation Regulations, the deficit balance, if any, in its adjusted
capital account created by such adjustments, allocations or distributions as
quickly as possible.
     (iv) Gross Income Allocations. In the event any Partner has a deficit
balance in its adjusted capital account at the end of any Partnership taxable
period, such Partner shall be specially allocated items of Partnership gross
income and gain in the amount of such excess as quickly as possible; provided,
that an

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allocation pursuant to this subsection 5.01(b)(iv) shall be made only if and to
the extent that such Partner would have a deficit balance in its adjusted
capital account after all other allocations provided in this Section 5.01 have
been tentatively made as if subsection 5.01(b)(iv) were not in the Agreement.
     (v) Partnership Nonrecourse Deductions. Partnership Nonrecourse Deductions
(as determined under Treas. Reg. Section 1.704-2(c)) for any fiscal year shall
be allocated among the Partners in proportion to their Partnership Interests.
     (vi) Partner Nonrecourse Deductions. Any Partner Nonrecourse Deductions (as
defined under Treas. Reg. Section 1.704-2(i)(2)) shall be allocated pursuant to
Treas. Reg. Section 1.704-2(i) to the Partner who bears the economic risk of
loss with respect to the partner nonrecourse debt to which it is attributable.
     (vii) Code Section 754 Adjustment. To the extent an adjustment to the
adjusted tax basis of any Partnership asset pursuant to Section 734(b) or 743(b)
of the Code is required, pursuant to the Allocation Regulations, to be taken
into account in determining capital accounts, the amount of such adjustment to
the capital accounts shall be treated as an item of gain (if the adjustment
increases the basis of the asset) or loss (if the adjustment decreases such
basis), and such item of gain or loss shall be specially allocated to the
Partners in a manner consistent with the manner in which their capital accounts
are required to be adjusted pursuant to the Allocation Regulations.
     (viii) Curative Allocation. The special allocations set forth in
subsections 5.01(b)(i)-(vi) (the “Regulatory Allocations”) are intended to
comply with the Allocation Regulations. Notwithstanding any other provisions of
this Section 5.01, the Regulatory Allocations shall be taken into account in
allocating items of income, gain, loss and deduction among the Partners such
that, to the extent possible, the net amount of allocations of such items and
the Regulatory Allocations to each Partner shall be equal to the net amount that
would have been allocated to each Partner if the Regulatory Allocations had not
occurred.
          (c) For federal income tax purposes, except as otherwise required by
the Code, the Allocation Regulations or the following sentence, each item of
Partnership income, gain, loss, deduction and credit shall be allocated among
the Partners in the same manner as corresponding items are allocated in
Section 5.01(a). Notwithstanding any provisions contained herein to the
contrary, solely for federal income tax purposes, items of income, gain,
depreciation, gain or loss with respect to property contributed or deemed
contributed to the Partnership by a Partner shall be allocated so as to take
into account the variation between the Partnership’s tax basis in such
contributed property and its Carrying Value pursuant to such method under the
Code as is chosen by the General Partner.

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     5.02 Distributions.
          (a) At least once each month prior to commencement of winding up under
Section 11.02, the General Partner shall determine in its reasonable judgment to
what extent (if any) the Partnership’s cash on hand exceeds its current and
anticipated needs, including, without limitation, for operating expenses, debt
service, acquisitions, and a reasonable contingency reserve. If such an excess
exists, the General Partner shall cause the Partnership to distribute to the
Partners, in accordance with their Sharing Ratios, an amount in cash equal to
that excess.
          (b) From time to time the General Partner also may cause property of
the Partnership other than cash to be distributed to the Partners, which
distribution must be made in accordance with their Sharing Ratios and may be
made subject to existing liabilities and obligations. Immediately prior to such
a distribution, the capital accounts of the Partners shall be adjusted as
provided in Treas. Reg. § 1.704-1(b)(2)(iv)(f).
ARTICLE VI:MANAGEMENT AND OPERATION
     6.01 Management of Partnership Affairs.
          (a) Except for situations in which the approval of the Limited
Partners is expressly required by this Agreement or by nonwaivable provisions of
applicable law, the General Partner shall have full, complete, and exclusive
authority to manage and control the business, affairs, and properties of the
Partnership, to make all decisions regarding those matters, and to perform any
and all other acts or activities customary or incident to the management of the
Partnership’s business. The General Partner may make all decisions and take all
actions for the Partnership not otherwise provided for in this Agreement.
          (b) A Limited Partner may not act for or on behalf of the Partnership,
do any act that would be binding on the Partnership, or incur any expenditures
on behalf of the Partnership.
          (c) Any Person dealing with the Partnership, other than a Limited
Partner, may rely on the authority of the General Partner in taking any action
in the name of the Partnership without inquiry into the provisions of this
Agreement or compliance with it, regardless of whether that action actually is
taken in accordance with the provisions of this Agreement.
     6.02 Compensation. The General Partner is not entitled to compensation for
its services as General Partner, but it is entitled to be reimbursed for
out-of-pocket costs and expenses incurred in the course of its service in that
capacity in accordance with this Agreement, including for the portion of its
overhead reasonably allocable to Partnership activities.
6.03 Standards and Conflicts.
          (a) Except as provided otherwise in this Agreement, the General
Partner shall conduct the affairs of the Partnership in good faith toward the
best interests of the Partnership. THE GENERAL PARTNER IS LIABLE FOR ERRORS OR
OMISSIONS IN PERFORMING ITS DUTIES WITH RESPECT TO THE PARTNERSHIP ONLY IN

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THE CASE OF BAD FAITH, GROSS NEGLIGENCE, OR BREACH OF THE PROVISIONS OF THIS
AGREEMENT, BUT NOT OTHERWISE. The General Partner shall devote such time and
effort to the Partnership business and operations as is necessary to promote
fully the interests of the Partnership; however, the General Partner need not
devote full time to Partnership business.
          (b) Subject to the other provisions of this Agreement, the General
Partner and each Limited Partner at any time and from time to time may engage in
and possess interests in other business ventures of any and every type and
description, independently or with others, including ones in competition with
the Partnership, with no obligation to offer to the Partnership or any other
Partner the right to participate in those activities.
          (c) The Partnership may transact business with any Partner or
affiliate of a Partner, provided the terms of the transactions are no less
favorable than those the Partnership could obtain from unrelated third parties.
     6.04 Indemnification. To the fullest extent permitted by law, and subject
to the procedures in Article 11 of the Act, on request by the Person indemnified
the Partnership shall indemnify the General Partner, its affiliates, and their
respective officers, directors, partners, employees, and agents and hold them
harmless from and against all losses, costs, liabilities, damages, and expenses
(including, without limitation, costs of suit and attorney’s fees) any of them
may incur as a general partner in the Partnership or in performing the
obligations of the General Partner with respect to the Partnership, SPECIFICALLY
INCLUDING THE PERSON INDEMNIFIED’S SOLE, PARTIAL, OR CONCURRENT NEGLIGENCE, and
on request by the Person indemnified the Partnership shall advance expenses
associated with defense of any related action; provided, however, that this
indemnity does not apply to actions constituting bad faith, gross negligence, or
breach of the provisions of this Agreement.
     6.05 Power of Attorney. Each Limited Partner appoints the General Partner
(and any liquidator pursuant to Section 11.02) as that Limited Partner’s
attorney-in-fact for the purpose of executing, swearing to, acknowledging, and
delivering all certificates, documents, and other instruments as may be
necessary, appropriate, or advisable in the judgment of the General Partner (or
the liquidator) in furtherance of the business of the Partnership or complying
with applicable law, including, without limitation, filings of the type
described in Section 2.05. This power of attorney is irrevocable and is coupled
with an interest. On request by the General Partner (or the liquidator), a
Limited Partner shall confirm its grant of this power of attorney or any use of
it by the General Partner (or the liquidator) and shall execute, swear to,
acknowledge, and deliver any such certificate, document, or other instrument.
ARTICLE VII:RIGHTS OF LIMITED PARTNERS
     7.01 Information.
          (a) In addition to the other rights set forth in this Agreement, each
Limited Partner is entitled to all information to which that Limited Partner is
entitled to have access under the Act under the circumstances and subject to the
conditions therein stated; provided, however, that the General Partner may
determine, due to contractual obligations, business concerns, or

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other considerations, that certain information regarding the business, affairs,
properties, and financial condition of the Partnership should be kept
confidential and not provided to some or all Limited Partners. The Partners
agree that the restrictions in the immediately preceding sentence are just and
reasonable.
          (b) The Partners acknowledge that, from time to time, they may receive
information from or regarding the Partnership in the nature of trade secrets or
that otherwise is confidential, the release of which may be damaging to the
Partnership or Persons with which it does business. Each Partner shall hold in
strict confidence and not use (except for matters involving the Partnership) any
information it receives regarding the Partnership that is identified as being
confidential (and if that information is provided in writing, that is so marked)
and may not disclose it to any Person other than another Partner, except for
disclosures (a) compelled by law (but the Partner must notify the General
Partner promptly of any request for that information, before disclosing it if
practicable), (b) to advisers or representatives of the Partner, but only if the
recipients have agreed to be bound by the provisions of this Section 7.01(b), or
(c) of information that Partner also has received from a source independent of
the Partnership that the Partner reasonably believes obtained that information
without breach of any obligation of confidentiality. The Partners acknowledge
that breach of the provisions of this Section 7.01(b) may cause irreparable
injury to the Partnership for which monetary damages are inadequate, difficult
to compute, or both. Accordingly, the Partners agree that the provisions of this
Section 7.01(b) may be enforced by specific performance.
     7.02 Withdrawal. A Limited Partner does not have the right or power to
withdraw from the Partnership as a limited partner.
     7.03 Consents and Voting.
          (a) Subject to the provisions of Section 6.03(a) with respect to the
General Partner in its capacity as such, a Partner (including the General
Partner with respect to any Partnership Interest it may have as a Limited
Partner) may grant or withhold its consent or vote its interest in its sole
discretion, without regard to the interests of the Partnership or any other
Partner.
          (b) In any request for consent or approval from another Partner, the
General Partner may specify a response period, ending no earlier than the fifth
and no later than the 15th Business Day following the date on which the Partner
whose consent or approval is sought receives the request as described in
Section 12.02. If the receiving Partner does not respond by the end of this
period, it shall be deemed to have consented to or approved the action set forth
in the request.
     7.04 Meetings. On written request of Partners having 50% of the Sharing
Ratios, the General Partner shall call, and at any time it may call, a meeting
of the Partners to transact business that the Partners or any group of Partners
may conduct as provided in this Agreement. The call must be made by notice to
all other Partners on or before the tenth day prior to the date of the meeting
specifying the location and the time and stating the business to be transacted
at the meeting, which must include any items the Partners requesting the meeting
have specified in their request. The chairperson of the meeting shall be an
individual the General Partner specifies.

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At the meeting, the Partners may take any action included in the notice of the
meeting by vote of Partners present, in person or by proxy, constituting
Partners whose consent is required for that action pursuant to the other
provisions of this Agreement. With respect to other matters, the meeting must be
conducted in accordance with rules that the General Partner may establish.
ARTICLE VIII: TAXES
     8.01 Tax Returns. The General Partner shall cause to be prepared and filed
all necessary federal and state income tax returns for the Partnership,
including making the elections described in Section 8.02. Each Limited Partner
shall furnish to the General Partner all pertinent information in its possession
relating to Partnership operations that is necessary to enable the Partnership’s
income tax returns to be prepared and filed.
     8.02 Tax Elections. The Partnership shall make the following elections on
the appropriate tax returns:
          (a) to adopt a fiscal year ending on December 31 of each year;
          (b) to adopt the accrual method of accounting and to keep the
Partnership’s books and records on the income-tax method;
          (c) pursuant to section 754 of the Code, to adjust the basis of
Partnership properties; and
          (d) any other election the General Partner may deem appropriate and in
the best interests of the Partners.
Neither the Partnership nor any Partner may make an election for the Partnership
to be excluded from the application of the provisions of subchapter K of chapter
1 of subtitle A of the Code or any similar provisions of applicable state law.
     8.03 Tax Matters Partner. The General Partner shall be the “tax matters
partner” of the Partnership pursuant to section 6231(a)(7) of the Code. The
General Partner shall take such action as may be necessary to cause each Limited
Partner to become a “notice partner” within the meaning of section 6223 of the
Code. The General Partner shall inform each Limited Partner of all significant
matters that may come to its attention in its capacity as tax matters partner by
giving notice on or before the fifth Business Day after becoming aware of the
matter and, within that time, shall forward to each Limited Partner copies of
all significant written communications it may receive in that capacity.
ARTICLE IX: BOOKS, RECORDS, REPORTS, AND BANK ACCOUNTS
     9.01 Maintenance of Books. The books of account for the Partnership shall
be maintained on a accrual basis in accordance with the terms of this Agreement,
except that the capital accounts of the Partners shall be maintained in
accordance with Section 4.04. The accounting year of the Partnership shall end
on December 31 of each year.

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     9.02 Reports. If requested by any Partner in writing, on or before the
120th day following the end of each fiscal year during the term of the
Partnership, the General Partner shall cause each Limited Partner to be
furnished with a balance sheet, an income statement, and a statement of changes
in Partners’ capital of the Partnership for, or as of the end of, that year.
These financial statements must be prepared in accordance with accounting
principles generally employed for cash basis records consistently applied
(except as noted in the statements). The General Partner also may cause to be
prepared or delivered such other reports as it may deem appropriate. The
Partnership shall bear the costs of all these reports.
     9.03 Accounts. The General Partner shall establish and maintain one or more
separate bank and investment accounts and arrangements for Partnership funds in
the Partnership name with financial institutions and firms that the General
Partner determines. The General Partner may not commingle the Partnership’s
funds with the funds of any Partner; however, Partnership funds may be invested
in a manner the same as or similar to the General Partner’s investment of its
own funds or investments by its affiliates.
ARTICLE X: WITHDRAWAL, BANKRUPTCY, ETC. OF GENERAL PARTNER
10.01 Withdrawal, Bankruptcy, Etc. of General Partner.
          (a) The General Partner agrees that it will not withdraw from the
Partnership as the general partner within the meaning of Section 6.02(a) of the
Act. If the General Partner withdraws from the Partnership in violation of this
covenant, the withdrawal is effective on the 90th day following notice of the
withdrawal to all Limited Partners, or such later date as the notice may
specify. On a withdrawal in violation of this Section 10.01(a), the
Partnership’s remedies shall be limited to the recovery of monetary damages
arising from such violation, it being understood that neither the Partnership
nor any Limited Partner shall have the right, through specific performance or
otherwise, to prevent the General Partner from withdrawing in violation of this
Agreement.
          (b) The General Partner does not cease to be the general partner in
the Partnership on the occurrence of an event of the type described in
Section 4.02(a)(7)-(9) of the Act, but ceases to be the general partner on the
substantial completion of winding up of the General Partner’s activities. The
General Partner shall notify each Limited Partner that an event of the type
described in Section 4.02(a)(4), (5), or (7)-(10) of the Act has occurred with
respect to it on or before the fifth Business Day after that occurrence.
          (c) Following any notice that the General Partner is withdrawing, or
following the occurrence of an event of the type described in
Section 4.02(a)(4)-(10) of the Act with respect to the General Partner (without
regard to the lapse of any time periods), a Required Interest by written consent
may select a new General Partner. The Person selected shall be admitted to the
Partnership as the General Partner effective immediately prior to the existing
General Partner’s ceasing to be the General Partner with a Sharing Ratio that
the Limited Partners making the selection specify, but only if the new General
Partner has made a Capital Contribution in an amount the Limited Partners making
the selection specify and has executed and delivered to the Partnership a
document including the new General Partner’s notice address and its agreement to
be bound by this Agreement. Notwithstanding the foregoing provisions of

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this Section 10.01(c), for the right to select a new General Partner to exist or
be exercised, the Partnership must receive a favorable opinion of the
Partnership’s legal counsel or of other legal counsel acceptable to the Limited
Partners making the selection to the effect that the selection and admission (if
any) will not result in (i) the loss of limited liability of any Limited Partner
or (ii) the Partnership’s being treated as an association taxable as a
corporation for federal income tax purposes. Notwithstanding the foregoing
provisions of this Section 10.01(c), the selection of a new General Partner
shall be rescinded (and the existing General Partner shall continue as such) if
the event that permitted the selection of a new General Partner is an event of
the type described in Section 4.02(a)(5) of the Act that with the passage of
time would cause the existing General Partner to become a Bankrupt Partner but
that situation does not continue and the existing General Partner does not
become a Bankrupt Partner.
     10.02 Conversion of Interest. Simultaneously with the General Partner’s
ceasing to be General Partner following the admission of a new General Partner
pursuant to Section 10.01(c), the former General Partner’s Partnership Interest
as the General Partner automatically is converted into that of a Limited Partner
having a Sharing Ratio equal to the Sharing Ratio of the former General Partner
as the General Partner immediately prior to its ceasing to be the General
Partner, and the General Partner automatically is admitted to the Partnership as
a Limited Partner.
ARTICLE XI: DISSOLUTION, LIQUIDATION, AND TERMINATION
     11.01 Dissolution. The Partnership shall dissolve and its business and
affairs shall be wound up on the first to occur of the following:
          (a) the written consent of the General Partner and a Required
Interest;
          (b) the date set forth in Section 2.06;
          (c) the General Partner’s ceasing to be the General Partner as
described in Section 10.01(a) or (b), unless a new General Partner is selected
and admitted as provided in Section 10.01(c); or
          (d) any other event causing dissolution as described in Section 8.01
of the Act (other than an event described in Section 4.02(a)(4) or (7)-(10) of
the Act, except as provided in Sections 10.01(b) and 11.01(c));
provided, however, that if dissolution occurs due to an “event of withdrawal”
(as defined in Section 4.02(a) of the Act) with respect to the General Partner
and a new General Partner is being admitted pursuant to Section 10.01(c), the
Partnership automatically shall be reconstituted and the new General Partner
shall, and hereby agrees to, carry on the business of the Partnership.
     11.02 Liquidation and Termination. On dissolution of the Partnership,
unless it is reconstituted and continued as provided in Section 11.01, the
General Partner shall act as liquidator or may appoint one or more other Persons
as liquidator; provided, however, that if the Partnership dissolves on account
of an event of the type described in Section 4.02(a)(4)-(10) of the Act with
respect to the General Partner, the liquidator shall be one or more Persons
selected in writing by a Required Interest. The liquidator shall proceed
diligently to wind up the affairs of

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the Partnership and make final distributions as provided in this Agreement. The
costs of liquidation shall be borne as a Partnership expense. Until final
distribution, the liquidator shall continue to operate the Partnership
properties with all of the power and authority of the General Partner. The steps
to be accomplished by the liquidator are as follows:
          (a) as promptly as practicable after dissolution and again after final
liquidation, the liquidator shall cause a proper accounting to be made by a
recognized firm of certified public accountants of the Partnership’s assets,
liabilities, and operations through the last day of the calendar month in which
the dissolution occurs or the final liquidation is completed, as applicable;
          (b) the liquidator shall pay from Partnership funds all of the debts
and liabilities of the Partnership (including, without limitation, all expenses
incurred in liquidation and any advances described in Section 4.03) or otherwise
make adequate provision for them (including, without limitation, the
establishment of a cash escrow fund for contingent liabilities in such amount
and for such term as the liquidator may reasonably determine); and
          (c) all remaining assets of the Partnership shall be distributed to
the Partners as follows:
     (i) the liquidator may sell any or all Partnership property, including to
Partners, and any resulting gain or loss from each sale shall be computed and
allocated to the capital accounts of the Partners;
     (ii) with respect to all Partnership property that has not been sold, the
fair market value of that property shall be determined and the capital accounts
of the Partners shall be adjusted to reflect the manner in which the unrealized
income, gain, loss, and deduction inherent in property that has not been
reflected in the capital accounts previously would be allocated among the
Partners if there were a taxable disposition of that property for the fair
market value of that property on the date of distribution; and
     (iii) Partnership property shall be distributed among the Partners in
accordance with the positive capital account balances of the Partners, as
determined after taking into account all capital account adjustments for the
taxable year of the Partnership during which the liquidation of the Partnership
occurs (other than those made by reason of this clause (iii)); and those
distributions shall be made by the end of the taxable year of the Partnership
during which the liquidation of the Partnership occurs (or, if later, 90 days
after the date of the liquidation).
All distributions in kind to the Partners shall be made subject to the liability
of each distributee for its allocable share of costs, expenses, and liabilities
previously incurred or for which the Partnership has committed prior to the date
of termination and those costs, expenses, and liabilities shall be allocated to
the distributee under this Section 11.02. The distribution of cash and/or
property to a Partner in accordance with the provisions of this Section 11.02
constitutes a complete return to the Partner of its Capital Contributions and a
complete distribution to the

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Partner of its Partnership Interest and all the Partnership’s property and
constitutes a compromise to which all Partners have consented within the meaning
of Section 5.02(d) of the Act. To the extent that a Partner returns funds to the
Partnership, it has no claim against any other Partner for those funds.
     11.03 Termination. On completion of the distribution of Partnership assets
as provided in this Agreement, the Partnership is terminated, and the General
Partner (or such other Person or Persons as the Act may require or permit) shall
cause the cancellation of the Certificate and any filings made as provided in
Section 2.05 and shall take such other actions as may be necessary to terminate
the Partnership.
ARTICLE XII: GENERAL PROVISIONS
     12.01 Offset. Whenever the Partnership is to pay any sum to any Partner,
any amounts that Partner owes the Partnership may be deducted from that sum
before payment.
     12.02 Notices. All notices, requests, or consents provided for or permitted
to be given under this Agreement must be in writing and must be given either by
depositing that writing in the United States mail, addressed to the recipient,
postage paid, and registered or certified with return receipt requested or by
delivering that writing to the recipient in person, by courier, or by facsimile
transmission. A notice, request, or consent given under this Agreement is
effective on receipt at the address of the Person to receive it. All notices,
requests, and consents to be sent to a Partner must be sent to or made at the
addresses given for that Partner on Exhibit A or in the instrument described in
Section 10.01(c), or such other address as that Partner may specify by notice to
the other Partners. Any notice, request, or consent to the Partnership must be
given to the General Partner.
     12.03 Entire Agreement; Supersedure. This Agreement constitutes the entire
agreement of the Partners and their affiliates relating to the Partnership and
supersedes all prior contracts or agreements with respect to the Partnership,
whether oral or written.
     12.04 Effect of Waiver or Consent. A waiver or consent, express or implied,
to or of any breach or default by any Person in the performance by that Person
of its obligations with respect to the Partnership is not a consent or waiver to
or of any other breach or default in the performance by that Person of the same
or any other obligations of that Person with respect to the Partnership. Failure
on the part of a Person to complain of any act of any Person or to declare any
Person in default with respect to the Partnership, irrespective of how long that
failure continues, does not constitute a waiver by that Person of its rights
with respect to that default until the applicable statute of-limitations period
has run.
     12.05 Amendment or Modification. This Agreement may be amended or modified
from time to time only by a written instrument executed by all of the Partners.
     12.06 Binding Effect. Subject to the restrictions on Dispositions set forth
in this Agreement, this Agreement is binding on and inures to the benefit of the
Partners and their respective heirs, legal representatives and successors.

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     12.07 Governing Law; Severability. THIS AGREEMENT IS GOVERNED BY AND SHALL
BE CONSTRUED IN ACCORDANCE WITH THE LAW OF THE STATE OF TEXAS, EXCLUDING ANY
CONFLICT-OF-LAWS RULE OR PRINCIPLE THAT MIGHT REFER THE GOVERNANCE OR THE
CONSTRUCTION OF THIS AGREEMENT TO THE LAW OF ANOTHER JURISDICTION. If any
provision of this Agreement or its application to any Person or circumstance is
held invalid or unenforceable to any extent, the remainder of this Agreement and
the application of that provision to other Persons or circumstances is not
affected and that provision shall be enforced to the greatest extent permitted
by law.
     12.08 Further Assurances. In connection with this Agreement and the
transactions contemplated by it, each Partner shall execute and deliver any
additional documents and instruments and perform any additional acts that may be
necessary or appropriate to effectuate and perform the provisions of this
Agreement and those transactions.
     12.09 Waiver of Certain Rights. Each Partner irrevocably waives any right
it may have to maintain any action for dissolution of the Partnership or for
partition of the property of the Partnership.
     12.10 Indemnification. To the fullest extent permitted by law, each Partner
shall indemnify the Partnership and each other Partner and hold them harmless
from and against all losses, costs, liabilities, damages, and expenses
(including, without limitation, costs of suit and attorney’s fees) they may
incur on account of any breach by that Partner of this Agreement.
     12.11 Counterparts. This Agreement maybe executed in any number of
counterparts with the same effect as if all signing parties had signed the same
document. All counterparts shall be construed together and constitute the same
instrument.
[Signature page follows]

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EXECUTED as of the date first set forth above.

              GENERAL PARTNER:
 
            DEP OPERATING PARTNERSHIP, L.P.
 
       
 
  By:   DEP OLPGP, LLC,
 
      its general partner
 
       
 
  By:    /s/ Michael A. Creel
 
       
 
      Michael A. Creel
 
      Executive Vice President and Chief Financial Officer
 
            LIMITED PARTNERS:
 
            ENTERPRISE PRODUCTS OPERATING L.P.
 
       
 
  By:   Enterprise Products OLPGP, Inc.,
 
      its general partner
 
       
 
  By:    /s/ Richard H. Bachmann
 
       
 
      Richard H. Bachmann
 
      Executive Vice President, Chief Legal Officer and Secretary
 
            PROPYLENE PIPELINE PARTNERSHIP, L.P.
 
       
 
  By:   ENTERPRISE PRODUCTS OPERATING L.P.,
 
      its general partner
 
       
 
      By:    Enterprise Products OLPGP, Inc.,
 
                its general partner
 
       
 
  By:    /s/ Richard H. Bachmann
 
       
 
      Richard H. Bachmann
 
      Executive Vice President, Chief Legal Officer and Secretary

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EXHIBIT A

          Name and Address of Partner   Sharing Ratio
 
       
General Partner:
       
 
       
Duncan Energy Partners L.P.
1100 Louisiana Street, 10th Floor
Houston, Texas 77002
    66 %
 
       
Limited Partners:
       
 
       
Enterprise Products Operating L.P.
1100 Louisiana Street, 10th Floor
Houston, Texas 77002
    33 %
 
       
Propylene Pipeline Partnership, L.P.
1100 Louisiana Street, 10th Floor
Houston, Texas 77002
    1 %