Document:

exv10w1

Exhibit 10.1

EXECUTION COPY

 

PURCHASE AND SALE AGREEMENT

by and among

ENTERPRISE PRODUCTS OPERATING LLC

ENTERPRISE GTM HOLDINGS L.P.

as Seller Parties,

and

DUNCAN ENERGY PARTNERS L.P.

DEP HOLDINGS, LLC

DEP OPERATING PARTNERSHIP, L.P.

DEP OLP GP, LLC,

As Buyer Parties

Dated as of December 8, 2008

 

 

TABLE OF CONTENTS

	 	 	 	 	 
	 	 	Page
	 
	ARTICLE I. CONTRIBUTION OF ASSIGNED INTEREST, GROSS CONSIDERATION AND ASSUMPTION OF
LIABILITIES 

	 
	 	 	 	 
	1.1 Contribution of Assets

	 	 	3	 
	1.2 Consideration

	 	 	3	 
	1.3 Conveyance and Contribution by the Partnership

	 	 	4	 
	1.4 Assumption of Certain Liabilities

	 	 	4	 
	 
	 	 	 	 
	ARTICLE II. CLOSING 

	 
	 	 	 	 
	2.1 Closing

	 	 	4	 
	2.2 Deliveries by the Seller Parties

	 	 	5	 
	2.3 Deliveries by the Buyer Parties

	 	 	6	 
	2.4 Receipts

	 	 	6	 
	2.5 Allocation of Costs

	 	 	7	 
	 
	 	 	 	 
	ARTICLE III. REPRESENTATIONS AND WARRANTIES OF THE SELLER PARTIES 

	 
	 	 	 	 
	3.1 Organization

	 	 	7	 
	3.2 Authorization

	 	 	7	 
	3.3 No Conflicts or Violations; No Consents or Approvals Required

	 	 	8	 
	3.4 Capitalization

	 	 	8	 
	3.5 Absence of Litigation

	 	 	9	 
	3.6 Title and Condition of Assets
	 	 	9	 
	3.7 Brokers and Finders

	 	 	10	 
	3.8 WAIVERS AND DISCLAIMERS

	 	 	10	 
	 
	 	 	 	 
	ARTICLE IV. REPRESENTATIONS AND WARRANTIES OF THE BUYER PARTIES 

	 
	 	 	 	 
	4.1 Organization

	 	 	11	 
	4.2 Authorization

	 	 	11	 
	4.3 No Conflicts or Violations; No Consents or Approvals Required

	 	 	11	 
	4.4 Absence of Litigation

	 	 	12	 
	4.5 Brokers and Finders

	 	 	12	 
	4.6 Validity of Unit Consideration

	 	 	12	 
	 
	 	 	 	 
	ARTICLE V. COVENANTS AND AGREEMENTS 

	 
	 	 	 	 
	5.1 Conduct of the Operations
	 	 	12	 
	5.2 Access

	 	 	13	 
	5.3 Additional Agreements

	 	 	13	 
	5.4 Further Assurances

	 	 	13	 
	5.5 Investment Representations

	 	 	14	 
	5.6 HSR

	 	 	15	 

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	 	 	Page
	 
	 	 	 	 
	ARTICLE VI. CONDITIONS TO CLOSING 

	 
	 	 	 	 
	6.1 Conditions to Each Party’s Obligation to Close

	 	 	16	 
	6.2 Conditions to the Buyer Parties’ Obligation to Close
	 	 	16	 
	6.3 Conditions to the Seller Parties’ Obligation to Close

	 	 	17	 
	 
	 	 	 	 
	ARTICLE VII. TERMINATION 

	 
	 	 	 	 
	7.1 Termination

	 	 	18	 
	7.2 Effect of Termination

	 	 	19	 
	 
	 	 	 	 
	ARTICLE VIII. INTERPRETATION; DEFINED TERMS 

	 
	 	 	 	 
	8.1 Interpretation

	 	 	19	 
	8.2 References, Gender, Number

	 	 	20	 
	8.3 Defined Terms

	 	 	20	 
	 
	 	 	 	 
	ARTICLE IX. MISCELLANEOUS 

	 
	 	 	 	 
	9.1 Expenses
	 	 	26	 
	9.2 Notices 
	 	 	26	 
	9.3 Severability

	 	 	26	 
	9.4 Governing Law

	 	 	27	 
	9.5 Parties in Interest

	 	 	27	 
	9.6 Assignment of Agreement

	 	 	27	 
	9.7 Captions
	 	 	27	 
	9.8 Counterparts

	 	 	27	 
	9.9 Director and Officer Liability

	 	 	27	 
	9.10 Integration

	 	 	27	 
	9.11 Amendment

	 	 	27	 
	9.12 Waiver of Limited Call Right

	 	 	27	 
	 
	 	 	 	 
	Schedules:
	 	 	 	 
	 
	 	 	 	 
	Seller
Parties’ Disclosure Schedules
	 	 	 	 
	 
	 	 	 	 

	 	 	 	 	 
	Schedule 3.3

	 	-
	 	No Conflicts
	Schedule 3.4

	 	-
	 	Capital Stock Held in Others
	Schedule 3.5

	 	-
	 	Seller Parties Litigation
	Schedule 3.6

	 	-
	 	Title to Assigned Interest and Subsidiary Interests
	 
	 	 	 	 
	Buyer Parties’ Disclosure Schedules
	 
	 	 	 	 
	Schedule 4.3

	 	-
	 	No Conflicts
	 
	 	 	 	 
	Exhibits
	 	 	 	 

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	 	 	A            Amended and Restated Omnibus Agreement
	 	 	B            Amended and Restated Agreement of Limited Partnership of Enterprise GC
	 	 	C            Amended and Restated Agreement of Limited Partnership of Enterprise Intrastate
	 	 	D            Amended and Restated Agreement of Limited Partnership of Enterprise Texas
	 	 	E            Contribution, Conveyance and Assumption Agreement
	 	 	F            Third Amendment to Amended and Restated Agreement of Limited Partnership of Duncan Energy Partners L.P.

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PURCHASE AND SALE AGREEMENT

     This Purchase and Sale Agreement (this “Agreement”), dated as of December 8, 2008, is entered
into by and among (a) Enterprise Products Operating LLC, a Texas limited liability company (and
successor of Enterprise Products Operating L.P., a Delaware limited partnership)(“EPO”), and
Enterprise GTM Holdings L.P., a Delaware limited partnership (“Enterprise GTM”), and together with
EPO, the “Seller Parties”), on the one hand, and (b) Duncan Energy Partners L.P., a Delaware
limited partnership (the “Partnership”), DEP Holdings, LLC, a Delaware limited liability company
(the “General Partner”), DEP Operating Partnership, L.P., a Delaware limited partnership (“OLP” or
the “Operating Partnership”), DEP OLP GP, LLC, a Delaware limited liability company (“OLP GP,” and
together with the Partnership, the General Partner and OLP, the “Buyer Parties”). The above-named
entities are sometimes referred to in this Agreement each as a “Party” and collectively as the
“Parties.”

     WHEREAS, Enterprise GTM, owns a 99.0% limited partner interest in Enterprise GC, L.P., a
Delaware limited partnership (“Enterprise GC”), and Enterprise Holding III, L.L.C., a Delaware
limited liability company (“Enterprise Holding III”), owns a 1.0% general partner interest in
Enterprise GC; and

     WHEREAS, Enterprise GTM owns a 99.0% limited partner interest in Enterprise Intrastate L.P.,
a Delaware limited partnership (“Enterprise Intrastate”), and Enterprise Holding III owns a 1.0%
general partner interest in Enterprise Intrastate; and

     WHEREAS, Enterprise GTM owns 99.0% and Enterprise Holding III owns 1.0% of the membership
interests of Enterprise Texas Pipeline, LLC, a Texas limited liability company (“Enterprise
Texas”); and

     WHEREAS, Enterprise GTM owns 100% of the membership interests of Enterprise Holding III; and

     WHEREAS, Enterprise GTM will effect an Assignment of the Subsidiary Interests (as defined
below) as contributions to Enterprise Holding III at the Closing, and the conversion of the
Subsidiary Interests into new general partner and membership interests; and

     WHEREAS, Enterprise GTM will effect the Assignment of the Assigned Interest (as defined below)
in Enterprise Holding III to the Partnership, and in exchange will receive from the Partnership as
consideration for the Gross Consideration set forth below; and

     WHEREAS, concurrently with the consummation of the transactions contemplated herein (the
“Closing”), each of the following shall occur:

     1. Enterprise GTM will contribute, assign, transfer and convey to Enterprise Holding III a 65%
Enterprise GC limited partner interest, a 50% Enterprise Intrastate limited partner interest and a
50% Enterprise Texas membership interest (the “Subsidiary Interests”), at which time such interests
together with the general partner interest or other membership interest owned by Enterprise Holding
III shall be converted into the applicable general partner interests or membership interests as set
forth in the applicable Amended Entity Agreements to be executed at the Closing;

 

     2. Enterprise GTM will contribute, sell, assign, transfer and convey to the Partnership all of
its respective right, title and interest in and to all of the membership interests in Enterprise
Holding III (the “Enterprise Holding III Member Interests” or the “Assigned Interest”), free and
clear of all Encumbrances other than the Encumbrances set forth in (a) the Amended Entity
Agreements to be executed at the Closing, and (b) the Amended and Restated Omnibus Agreement.

     3. Concurrent with the assignment described in paragraph 2 above, the Partnership will assign
and covey its rights to such interests to the Operating Partnership, which will acquire such
interests free and clear of all Encumbrances other than the Encumbrances set forth in (a) the
applicable Amended Entity Agreements to be executed at the Closing to evidence the admission of the
Operating Partnership as partners or members of such entities, and (b) the Amended and Restated
Omnibus Agreement.

     4. The Partnership will consummate the Equity Offering for 41,529 Common Units for aggregate
net proceeds of approximately $500,000 pursuant to the Unit Purchase Agreement.

     5. The Partnership will borrow $282.25 million
(“Debt Proceeds”) pursuant to a standby term
loan agreement dated April 18, 2008 (as amended, the “Term Loan”) with Wachovia Bank, National
Association, as Administrative Agent and Lender, and with co-syndication agents, co-documentation
agents and other Lenders named therein (the “Lenders”).

     6. The Partnership will use the aggregate net proceeds (after discounts and commissions, if
any) from the Equity Offering (the “Offering Proceeds”) and Debt Proceeds to (a) pay transaction
expenses associated with the transactions contemplated by this Agreement in the estimated amount of
$2.25 million, exclusive of underwriters’ discounts and commissions, if any, and (b) pay a cash
amount equal to $280.5 million ($280.0 million plus the Offering Proceeds) (the “Cash Consideration”) to Enterprise GTM, as partial
consideration for the contribution of the Assigned Interest.

     7. The Partnership will issue 37,333,887 Class B Units to Enterprise GTM, with an aggregate
value of $449,499,999.48 (approximately $450.0 million less the value of the net Offering
Proceeds), to Enterprise GTM as the Unit Consideration and partial consideration for the
contribution of the of the Assigned Interest.

     8. The agreements of limited partnership of Enterprise GC and Enterprise Intrastate and the
company agreement of Enterprise Texas shall be amended or amended and restated as set forth in the
Amended Entity Agreements to reflect the transactions set forth herein and contemplated by the
Conveyance Agreement.

     9. The Omnibus Agreement shall be amended and restated as set forth in the Amended and Restate
Omnibus Agreement to reflect the transactions set forth herein and contemplated by the Conveyance
Agreement.

     NOW, THEREFORE, in consideration of the foregoing and the mutual covenants set forth herein
and in the Omnibus Agreement, and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the Parties, intending to be legally bound, hereby
agree as follows:

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ARTICLE I.

CONTRIBUTION OF ASSIGNED INTEREST, GROSS CONSIDERATION AND ASSUMPTION OF LIABILITIES

     1.1 Contribution of Assets. At the Closing, (a) Enterprise GTM shall irrevocably
contribute, sell, assign, transfer and convey (collectively, the “Assignment”) to the Partnership
and its successors and assigns all of Enterprise GTM’s right, title and interest in and to the
Assigned Interest, free and clear of all Encumbrances and (b) the Partnership shall accept and
purchase such Assigned Interest for its own account in exchange for the Gross Consideration. The
certificate representing the Assigned Interest shall be duly endorsed in blank or accompanied by a
membership interest assignment separate from certificate, as applicable, duly executed in blank by
EPO, in its capacity as the general partner of Enterprise GTM, in a form reasonably acceptable to
the Partnership, with all necessary transfer tax or other revenue stamps, acquired at Seller
Parties’ expense, affixed and canceled.

     1.2 Consideration.

          (a) Gross Consideration. The aggregate Cash Consideration and Unit Consideration
payable by the Buyer Parties (the “Gross Consideration”) to Enterprise GTM in exchange for the
Assignment of the Assigned Interest at Closing shall be as follows:

          (i) The Partnership shall pay Enterprise GTM the Cash Consideration at the Closing by
wire transfer of immediately available funds to the accounts specified by Enterprise GTM in
writing prior to the Closing; and

          (ii) The Partnership shall issue the Unit Consideration to Enterprise GTM at Closing.
The Unit Consideration shall be issued subject to the rights, preferences and privileges set
forth in the Partnership Agreement as amended by the DEP Agreement, the Delaware Revised
Uniform Limited Partnership Act and federal and state securities laws. The Unit
Consideration shall be issued by the Partnership at the Closing by delivery of a letter to
the Partnership’s transfer agent (the “Instruction Letter”) instructing such transfer agent
to promptly deliver certificates representing the Unit Consideration issued in the name of
Enterprise GTM or its designees (the “Certificates”).

          (b) Payment of Gross Consideration. The Parties agree that the Gross Consideration is
allocable to Enterprise GTM in the manner set forth in Section 1.2(a), and the Seller
Parties acknowledge that payment of the Gross Consideration in the manner set forth in Section
1.2(a) constitutes payment in full of the applicable portion of the Gross Consideration to
which the Seller Parties are entitled. The Seller Parties agree that payment of the Cash
Consideration shall be deemed made in full when the
Parties receive confirmation from the financial institution holding the accounts into which
payment of the Cash Contribution is made that the payment has been successfully received in such
accounts in immediately available funds and the Transfer Agent has acknowledged the issuance and
delivery of the Unit Consideration. Such confirmation shall be conclusive evidence of such
receipt.

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     1.3 Conveyance and Contribution by the Partnership. The Partnership hereby grants,
contributes, transfers, assigns and conveys to OLP (including by and through the OLP GP for its
proportionate contribution), its successors and assigns, all of the Partnership’s right, title and
interest in and to the Assigned Interest, and OLP hereby accepts the Assigned Interest as an
additional capital contribution by the Partnership and the OLP GP.

     1.4 Assumption of Certain Liabilities.

          (a) Assumption of Subject Liabilities by the Partnership. Except as set forth in the
Omnibus Agreement, from and after the Effective Time of the Assignment by Enterprise GTM of the
Assigned Interest to the Partnership, the Partnership hereby assumes and agrees to duly and timely
pay, perform and discharge all obligations and liabilities relating to the Assigned Interest (the
“Subject Liabilities”), to the full extent that the Seller Parties have previously or would have
been in the future obligated to pay, perform and discharge the Subject Liabilities were it not for
the Assignment described herein and the execution and delivery of this Agreement; provided,
however, that said assumption and agreement to duly and timely pay, perform and discharge the
Subject Liabilities shall not (i) increase the obligation of the Partnership with respect to the
Subject Liabilities beyond that of the Seller Parties, (ii) waive any valid defense that was
available to any Seller Party with respect to the Subject Liabilities or (iii) enlarge any rights
or remedies of any third party under any of the Subject Liabilities.

          (b) Assumption of Subject Liabilities by OLP. In connection with the contribution by
the Partnership of the Subject Interests to OLP and the General Partner, and the subsequent
contribution by the General Partner of all of its Subject Interests to OLP, OLP hereby assumes and
agrees to duly and timely pay, perform and discharge all of the Subject Liabilities, to the full
extent that the Partnership has been heretofore or would have been in the future obligated to pay,
perform and discharge the Subject Liabilities were it not for such distribution and the execution
and delivery of this Agreement; provided, however, that said assumption and agreement to duly and
timely pay, perform and discharge the Subject Liabilities shall not (i) increase the obligation of
OLP with respect to the Subject Liabilities beyond that of the Partnership, (ii) waive any valid
defense that was available to the Partnership with respect to the Subject Liabilities or (iii)
enlarge any rights or remedies of any third party under any of the Subject Liabilities.

          (c) General Provisions Relating to Assumption of Liabilities. Notwithstanding anything to the contrary contained in this Agreement, including, without
limitation, the terms and provisions of this Article I, no Party shall be deemed to have
assumed, and the Subject Interests have not and are not being assigned or contributed, as the case
may be, subject to any Encumbrances of any kind, including, without limitation, Encumbrances
securing Indebtedness other than Encumbrances provided in the Charter Documents of Enterprise Holding III, and all such Encumbrances shall be deemed to be excluded from the
assumptions of liabilities made under this Article I.

ARTICLE II.

CLOSING

     2.1 Closing. The Closing shall be held at the offices of Andrews Kurth LLP, 600
Travis Street, 42nd Floor, Houston, Texas 77002 at 8:00 a.m. Central Standard Time on the date

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of this Agreement following the satisfaction or waiver of the conditions set forth in Article
VI (other than those conditions relating to the execution of the applicable Concurrent
Agreements and the receipt of the Cash Consideration and the Certificates, which will be satisfied
at the Closing), or such other location or date as the Parties may agree. The date on which the
Closing takes place is referred to herein as the “Closing Date.” If the Closing occurs, the
Closing shall be deemed to be effective as of 12:01 a.m. Central Standard Time on the Closing Date
(the “Effective Time”). Notwithstanding anything in this Agreement to the contrary, title to the
Assigned Interest shall pass at the Closing.

     2.2 Deliveries by the Seller Parties. At the Closing, the Seller Parties shall
deliver, or cause to be delivered, to the Buyer Parties the following:

          (a) A certified copy of the resolutions duly adopted by (i) the Board of Directors of
Enterprise Products GP, LLC, EPD’s general partner, on behalf of EPD, (ii) the sole manager of EPO,
on its own behalf and on behalf of Enterprise GTM in its capacity as the general partner of
Enterprise GTM, approving this Agreement and all other agreements and documents contemplated hereby
to which the applicable foregoing Party is a party or will be a party as of the Closing, including,
without limitation, the Amended and Restated Omnibus Agreement (the “Seller Party Concurrent
Agreements”) and the consummation of the transactions contemplated hereby and thereby;

          (b) The Seller Party Closing Certificate, executed by a duly authorized representative of EPD
on behalf of the Seller Parties.

          (c) The written consent of Enterprise Holding III, in its capacity as the general partner of
Enterprise GP and Enterprise Intrastate and as the managing member of Enterprise Texas, (i)
consenting to the assignments of the applicable Subsidiary Interests in Enterprise GP, and
Enterprise Intrastate and Enterprise Texas from Enterprise GTM to Enterprise Holding III, (ii)
certifying as to all outstanding Capital Stock of Enterprise GP, and Enterprise Intrastate and
Enterprise Texas in effect as of the Closing Date, and all outstanding securities exercisable for
or exchangeable for or convertible into Capital Stock of Enterprise GP, and Enterprise Intrastate
and Enterprise Texas, and (iii) attaching Charter Documents of Enterprise GP, and Enterprise
Intrastate and Enterprise Texas certified by Enterprise Holding III to be true, accurate and
complete as of immediately prior to the Closing and as amended and restated as of the Closing Date.

          (d) The written consent of EPO, in its capacity as the general partner of Enterprise GTM, (i)
consenting to the contribution and assignment of the Subsidiary Interests by Enterprise GTM to
Enterprise Holding III, and the conversion of the partner and member interests as set forth in the
respective Amended Entity Agreements to be effective as of the Closing, (ii) consenting to the
contribution and assignment by Enterprise GTM of the Assigned Interest to the Partnership, (iii)
consenting to the contribution and assignment by the Partnership of the Assigned Interest to the
OLP (including through the OLP GP for its proportionate share of the OLP), (iv) certifying as to
all outstanding Capital Stock of Enterprise Holding III in effect as of the Closing Date, and all
outstanding securities exercisable for or exchangeable for or convertible into Capital Stock of
Enterprise Holding III and (v) attaching Charter Documents of

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Enterprise Holding III certified by EPO to be true, accurate and complete as of immediately prior to the Closing and as amended and
restated as of the Closing Date.

          (e) A certificate, executed by a duly authorized representative of EPO on behalf of the Seller
Parties, certifying as to the incumbency of each person executing this Agreement or any Concurrent
Agreement on behalf of any Seller Party.

          (f) A counterpart of this Agreement and all other Seller Party Concurrent Agreements,
including the Amended and Restated Omnibus Agreement, duly executed by an authorized representative
of each Seller Party and EPD.

          (g) Such other certificates, instruments of conveyance and documents as are listed in Article
VI herein or as may be reasonably requested by the Buyer Parties prior to the Closing Date to carry
out the intent and purposes of this Agreement and the Amended and Restated Omnibus Agreement.

     2.3 Deliveries by the Buyer Parties. At the Closing, the Buyer Parties shall deliver,
or cause to be delivered, to the Seller Parties the following:

          (a) The Cash Consideration as provided in Section 1.2(a)(i).

          (b) The Instruction Letter as provided in Section 1.2(a)(ii), which letter shall also instruct
the Partnership’s transfer agent to promptly deliver a certificate representing the Unit
Consideration issued in the name of Enterprise GTM.

          (c) A counterpart of each of the Amended Entity Agreements duly executed by Enterprise GTM and
Enterprise Holding III.

          (d) A counterpart of the DEP Amendment duly executed by the General Partner and effective as of
the Closing Date.

          (e) The Buyer Party Closing Certificate, duly executed by a duly authorized representative of
the Partnership.

          (f) A counterpart of this Agreement, the DEP Amendment and all other agreements and documents
contemplated hereby to which each Buyer Party is a party or will be a party as of the Closing,
including the Amended and Restated Omnibus Agreement (the “Buyer Party Concurrent Agreements”),
duly executed by an authorized representative of each Buyer Party and, as applicable, the other
subsidiaries of the OLP that are party to the current Omnibus Agreement.

          (g) Such other certificates, instruments of conveyance and documents as are listed in Article
VI herein or as may be reasonably requested by the Seller Parties prior to the Closing Date to
carry out the intent and purposes of this Agreement and the Omnibus Agreement.

     2.4 Receipts. Subject to the terms hereof, all monies, proceeds, receipts, credits
and income attributable to the Assigned Interest and distributable or payable with respect thereto
shall be the sole property and entitlement of the Buyer Parties, and, to the extent received by any

6

 

     Seller Party or one of its affiliates, shall be promptly accounted for and transmitted to the
appropriate Buyer Party.

     2.5 Allocation of Costs.

          (a) Enterprise GTM shall pay the cost of any applicable sales, transfer and stamp taxes
arising out of the Assignment of the Assigned Interest to the Partnership and the assignment of the
Subsidiary Interests to Enterprise Holding III.

          (b) Each Party shall bear its own costs and expenses in the drafting and negotiation of this
Agreement and the Seller Party Concurrent Agreements and the consummation of the transactions
contemplated hereby.

          (c) Enterprise GTM shall pay 50% of the HSR filing fees previously paid by the Buyer Parties.

ARTICLE III.

REPRESENTATIONS AND WARRANTIES OF THE SELLER PARTIES

     The Seller Parties jointly and severally hereby represent and warrant to the Buyer Parties as
of the date hereof and as of the Closing Date as follows:

     3.1 Organization. Each Seller Party and Subject Entity (i) is duly organized or
formed, validly existing and in good standing under the laws of the jurisdiction in which it so
organized or formed, (ii) has full partnership or limited liability company power and authority to
carry on its business as it
is currently being conducted and (iii) is duly qualified to conduct business as a foreign
partnership or limited liability company and is in good standing in each jurisdiction where the
character of its properties owned or held under lease or the nature of its activities makes such
qualification necessary, except where the failure to be so qualified would not, individually or in
the aggregate, reasonably be expected to result in a Material Adverse Effect.

     3.2 Authorization. Each Seller Party has full partnership or limited liability
company power and authority to execute, deliver, and perform its obligations under this Agreement
and any Seller Party Concurrent Agreements to which it is or will at Closing be a party and to
consummate the transactions consummated hereby and thereby. The execution and delivery by each
Seller Party of this Agreement and the Seller Party Concurrent Agreements to which each Seller
Party is or will at Closing be a party and the consummation by such Seller Party of the
transactions contemplated hereby and thereby have been duly and validly authorized by all necessary
partnership or limited liability company action of the Seller Parties. This Agreement has been
duly executed and delivered by each Seller Party and constitutes, and each Seller Concurrent
Agreement executed or to be executed by each Seller Party at Closing has been, or when executed
will be, duly executed and delivered by such Seller Party and constitutes, or when executed and
delivered will constitute, a valid and legally binding obligation of the Seller Party, enforceable
against such Seller Party in accordance with the terms hereof and thereof, except as such
enforceability may be limited by (i) applicable bankruptcy, insolvency, reorganization, moratorium,
fraudulent conveyance or other similar Laws affecting creditors’

7

 

rights and remedies generally and
(ii) equitable principles which may limit the availability of certain equitable remedies in certain
instances.

     3.3 No Conflicts or Violations; No Consents or Approvals Required. Except as set
forth in Seller Disclosure Schedule 3.3, the execution, delivery and performance by each
Seller Party of this Agreement and the other Seller Party Concurrent Agreements to which such
Seller Party is or will at Closing be a party does not, and the consummation of the transactions
contemplated hereby and thereby will not, (a) violate, conflict with, or result in any breach of,
with or without notice, lapse of time or both, any provision of such Seller Party’s or any Subject
Entity’s Charter Documents, (b) give rise to the creation of any Encumbrance upon any of the assets
of the Subject Entities, the Subsidiary Interests or the Assigned Interest, any right of
termination, amendment, cancellation or acceleration of any obligations contained in, or the loss
of any benefit under, any Contract to which the Subject Entities are a party, by which any Subject
Entity’s assets are bound or to which the Subsidiary Interests or the Assigned Interest are
subject, (c) violate any Order applicable to any Seller Party or Subject Entity or (d) subject to
obtaining the Consents or making the registrations, declarations or filings set forth in the next
sentence, violate in any material respect any applicable Law or material Contract binding upon any
Seller Party, the Subject Entities or the Subsidiary Interests or the Assigned Interest, except
where such violations or breaches would not reasonably be expected to result in a Material Adverse
Effect with respect to any Subject Entity or the Subsidiary Interests or the Assigned Interest. No
Consent of any Governmental Entity or any other Person is required to be obtained by any Seller
Party in connection with the execution, delivery and performance of this Agreement and the Seller
Party Concurrent Agreements to
which such Seller Party is a party or the consummation of the transactions contemplated hereby
or thereby, except for the required filing under the HSR Act and the expiration or termination of
the applicable waiting period with respect thereto or as set forth in Seller Disclosure
Schedule 3.3.

     3.4 Capitalization. As of the date of this Agreement, Enterprise GTM directly owns a
99.0% limited partner interest in Enterprise GC and Enterprise Intrastate and 99.0% of the
membership interests of Enterprise Texas. Enterprise Holding III directly owns a 1.0% general
partner interest in Enterprise GC and Enterprise Intrastate and 1.0% of the membership interests of
Enterprise Texas (the “Outstanding Interests”), all of which outstanding interests are duly and
validly issued, fully paid and nonassessable and free of any preemptive rights except as set forth
in the Charter Documents of each Subject Entity. Except for the Outstanding Interests, no other
Capital Stock of any Subject Entity is authorized, issued, outstanding or reserved for issuance,
and no Subject Entity has issued or is obligated to issue any warrant, option, call, put or
security which is convertible into, exercisable or exchangeable for any Capital Stock of any
Subject Entity. No Subject Company is a party to any Contract obligated it to issue, sell,
purchase or redeem any of the Subsidiary Interests, the Assigned Interest or other Outstanding
Interests. No Subject Entity is a party to any notes or other indebtedness the holders of which
have the right to vote (or which are convertible into, exchangeable for or evidence the right to
subscribe for or acquire securities having the right to vote) with the partners or members of the
applicable Subject Entity on any matter. There are no voting trusts, irrevocable proxies or other
Contracts to which any Subject Entity, the Subsidiary Interests or the Assigned Interest are bound
with respect to voting any Capital Stock of any Subject Entity. There are no Contracts restricting
or preventing the payment of distributions by any Subject Entity other than as set forth in the
Charter Documents. All securities issued by the Subject Entities have been issued in

8

 

transactions
exempt from registration under the Securities Act, the rules and regulations promulgated thereunder
and applicable state securities laws. The Subject Entities do not own any Capital Stock of any
Person.

     3.5 Absence of Litigation. Except as set forth in Seller Disclosure Schedule
3.5, there is no Action pending or, to the knowledge of the Seller Parties, threatened against
any Seller Party or any of its Affiliates relating to the transactions contemplated by this
Agreement, the Subsidiary Interests or the Assigned Interest or which, if adversely determined,
could reasonably be expected to materially impair the ability of the Seller Parties to perform
their obligations and agreements under this Agreement or the Seller Party Concurrent Agreements and
to consummate the transactions contemplated hereby and thereby.

     3.6 Title and Condition of Assets.

          (a) Title to the Subsidiary Interests and the Assigned Interest. Enterprise GTM and
Enterprise Holding III are the sole direct legal and beneficial owners of all of the Outstanding
Interests of the Subject Entities as described in Section 3.4, free and clear of all Encumbrances.
No Person has any right of first
refusal, option or other right to purchase or acquire all or any portion of the Subsidiary
Interests or the Assigned Interest. On the Closing Date, Enterprise GTM shall transfer good and
marketable title to the Assigned Interest to the Partnership, and the Partnership will own the
Assigned Interest free and clear of any Encumbrances other than Encumbrances provided in the
Charter Documents of the Enterprise Holding III (which shall not be amended or modified between the
Execution Date and the Closing Date except with the prior written consent of the Partnership, and
Enterprise Holding III will own the Subsidiary Interests free and clear of any Encumbrances other
than Encumbrances provided in the Charter Documents of the Subject Entities (which shall not be
amended or modified between the Execution Date and the Closing Date, other than the execution and
delivery of the Amended Entity Agreements on the Closing Date).

          (b) Title to and Condition of Assets. The Subject Entities have good and marketable
title (fee simple in the case of real property) to all of the tangible assets, properties and
interests in properties, whether real, personal or mixed, reflected as owned by it on the audited
combined balance sheet of the DEP II Midstream Business as of September 30, 2008 (the “Subject
Entity Assets”), other than assets sold or otherwise disposed of in the ordinary course of
business, free and clear of all Encumbrances other than Permitted Encumbrances or as described in
Schedule 3.6, subject to all recorded Encumbrances on such Subject Entity Assets in
existence on the Closing Date; provided, however, that except as set forth in Seller Disclosure
Schedule 3.6, each applicable Seller Party hereby represents and warrants that it knows of no
material title defect affecting any of the Subject Entity Assets arising by, through or under such
Seller Party. There has not been granted to any Person, and no Person possesses, any right of
first refusal to purchase any of the Subject Entity Assets. To the Seller Parties’ knowledge, the
Subject Entity Assets constitute all of the physical assets material to the operation of the
business of the Subject Entities as conducted on the date hereof and the Closing Date, and all such
Subject Entity Assets are in good operating condition and repair (normal wear and tear excepted and
except as reserved against on the audited combined balance sheet of the DEP II Midstream Business
as of September 30, 2008), are free from material defects (other than routine

9

 

maintenance or
repairs) and are fit for the particular purpose for which they are currently being used.

     3.7 Brokers and Finders. No investment banker, broker, finder, financial advisor or
other intermediary has been retained by or is authorized to act on behalf of any of the Seller
Parties who is entitled to receive from any Buyer Party any fee or commission in connection with
the transactions contemplated by this Agreement.

     3.8 WAIVERS AND DISCLAIMERS. NOTWITHSTANDING ANYTHING TO THE CONTRARY IN THIS
AGREEMENT, EXCEPT FOR THE EXPRESS REPRESENTATIONS AND WARRANTIES AND OTHER COVENANTS AND AGREEMENTS
MADE BY THE PARTIES IN THIS AGREEMENT, THE CONCURRENT AGREEMENTS AND THE OMNIBUS AGREEMENT, THE
PARTIES HERETO ACKNOWLEDGE AND AGREE
THAT NO PARTY HAS MADE OR MAKES AND EACH SUCH PARTY SPECIFICALLY NEGATES AND DISCLAIMS ANY
REPRESENTATION, WARRANTY, PROMISE, COVENANT, AGREEMENT OR GUARANTY OF ANY KIND OR CHARACTER
WHATSOEVER, WHETHER EXPRESS, IMPLIED OR STATUTORY, ORAL OR WRITTEN, PAST OR PRESENT, REGARDING (I)
THE VALUE, NATURE, QUALITY OR CONDITION OF THE SUBJECT ENTITY ASSETS, INCLUDING, WITHOUT
LIMITATION, THE WATER, SOIL, GEOLOGY OR ENVIRONMENTAL CONDITION OF THE SUBJECT ENTITY ASSETS
GENERALLY, INCLUDING THE PRESENCE OR LACK OF HAZARDOUS SUBSTANCES ON OR UNDER THE SUBJECT ENTITY
ASSETS, (II) THE INCOME TO BE DERIVED FROM THE SUBJECT ENTITY ASSETS, (III) THE SUITABILITY OF THE
SUBJECT ENTITY ASSETS FOR ANY AND ALL ACTIVITIES AND USES THAT MAY BE CONDUCTED THEREON, (IV) THE
COMPLIANCE OF OR BY THE SUBJECT ENTITY ASSETS OR THEIR OPERATION WITH ANY LAWS (INCLUDING WITHOUT
LIMITATION ANY ZONING, ENVIRONMENTAL PROTECTION, POLLUTION OR LAND USE LAWS, RULES, REGULATIONS,
ORDERS OR REQUIREMENTS), OR (V) THE HABITABILITY, MERCHANTABILITY, MARKETABILITY, PROFITABILITY OR
FITNESS FOR A PARTICULAR PURPOSE OF THE SUBJECT ENTITY ASSETS. EXCEPT TO THE EXTENT PROVIDED IN
THIS AGREEMENT, THE CONCURRENT AGREEMENTS OR THE OMNIBUS AGREEMENT, NO PARTY IS LIABLE TO THE OTHER
PARTIES HEREIN OR BOUND IN ANY MANNER BY ANY VERBAL OR WRITTEN STATEMENTS, REPRESENTATIONS OR
INFORMATION PERTAINING TO THE SUBJECT ENTITY ASSETS FURNISHED BY ANY AGENT, EMPLOYEE OR THIRD
PARTY. EXCEPT TO THE EXTENT PROVIDED IN THIS AGREEMENT, THE CONCURRENT AGREEMENTS OR THE OMNIBUS
AGREEMENT, EACH OF THE PARTIES HERETO ACKNOWLEDGES THAT TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE
ASSETS ARE IN “AS IS,” “WHERE IS” CONDITION WITH ALL FAULTS.

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ARTICLE IV.

REPRESENTATIONS AND WARRANTIES OF THE BUYER PARTIES

     The Buyer Parties jointly and severally hereby represent and warrant to the Seller Parties on
the date hereof and the Closing Date as follows:

     4.1 Organization. Each Buyer Party (i) is duly organized or formed, validly existing
and in good standing under the laws of the jurisdiction in which it so organized or formed, (ii)
has full partnership or limited liability company power and authority to carry on its business as
it is currently being conducted and (iii) is duly qualified to conduct business as a foreign
partnership or limited liability company and is in good standing in each jurisdiction where the
character of its properties owned or held under lease or the nature of its activities makes such
qualification necessary, except where the failure to be so qualified would not, individually or in
the aggregate, reasonably be expected to result in a Material Adverse Effect.

     4.2 Authorization. Each Buyer Party has full partnership or limited liability company power and authority to
execute, deliver, and perform its obligations under this Agreement, the DEP Amendment and any other
Buyer Party Concurrent Agreements to which it is or will at Closing be a party and to consummate
the transactions consummated hereby and thereby. The execution and delivery by each Buyer Party of
this Agreement, the DEP Amendment and the other Buyer Party Concurrent Agreements to which each
Buyer Party is or will at Closing be a party and the consummation by such Buyer Party of the
transactions contemplated hereby and thereby have been duly and validly authorized by all necessary
partnership or limited liability company action of the Buyer Parties. This Agreement has been duly
executed and delivered by each Buyer Party and constitutes, and the DEP Amendment and each Buyer
Concurrent Agreement executed or to be executed by each Buyer Party at Closing has been, or when
executed will be, duly executed and delivered by such Buyer Party and constitutes, or when executed
and delivered will constitute, a valid and legally binding obligation of the Buyer Party,
enforceable against such Buyer Party in accordance with the terms hereof and thereof, except as
such enforceability may be limited by (i) applicable bankruptcy, insolvency, reorganization,
moratorium, fraudulent conveyance or other similar Laws affecting creditors’ rights and remedies
generally and (ii) equitable principles which may limit the availability of certain equitable
remedies in certain instances.

     4.3 No Conflicts or Violations; No Consents or Approvals Required. Except as set
forth in Buyer Disclosure Schedule 4.3, the execution, delivery and performance by each
Buyer Party of this Agreement, the DEP Amendment and the other Buyer Party Concurrent Agreements to
which such Buyer Party is or will at Closing be a party does not, and the consummation of the
transactions contemplated hereby and thereby will not, (a) violate, conflict with, or result in any
breach of, with or without notice, lapse of time or both, any provision of such Buyer Party’s
Charter Documents, (b) give rise to the creation of any Encumbrance upon any of the assets of the
Buyer Parties (other than security interests granted pursuant to the Credit Agreement, Revolving
Credit Facility and security documents entered into in connection therewith by the Buyer Parties),
any right of termination, amendment, cancellation or acceleration of any obligations contained in,
or the loss of any benefit under, any Contract to which the Buyer Parties are a party or by which
their respective assets are bound, (c) violate any Order applicable to any Buyer Party or (d)
subject to obtaining the Consents or making the registrations,

11

 

declarations or filings set forth in
the next sentence, violate in any material respect any applicable Law or material Contract binding
upon any Buyer Party, except where such violations or breaches would not reasonably be expected to
result in a Material Adverse Effect with respect to any Buyer Party. No Consent of any
Governmental Entity or any other Person is required to be obtained by any Buyer Party in connection
with the execution, delivery and performance of this Agreement, the DEP Amendment and the other
Buyer Party Concurrent Agreements to which such Buyer Party is a party or the consummation of the
transactions contemplated hereby or thereby, except for the required filing under the HSR Act and
the expiration or termination of the applicable waiting period with respect thereto or as set forth
in Buyer Disclosure Schedule 4.3.

     4.4 Absence of Litigation. There is no Action pending or, to the knowledge of the
Buyer Parties, threatened against any Buyer Party or any of its affiliates relating to the
transactions contemplated by this
Agreement or which, if adversely determined, would reasonably be expected to materially impair
the ability of the Buyer Parties to perform their obligations and agreements under this Agreement,
the DEP Amendment or the other Buyer Party Concurrent Agreements and to consummate the transactions
contemplated hereby and thereby.

     4.5 Brokers and Finders. No investment banker, broker, finder, financial advisor or
other intermediary has been retained by or is authorized to act on behalf of any of the Buyer
Parties who is entitled to receive from any Buyer Party any fee or commission in connection with
the transactions contemplated by this Agreement, other than the payment of a financial advisor fee
to Houlihan Lokey, which has been retained to advise the Audit, Conflicts and Governance Committee
of the Board of Directors of the General Partner, as set forth in the engagement letter dated as of
October 28, 2008.

     4.6 Validity of Unit Consideration. The Class B Units comprising the Unit
Consideration and the Limited Partner Interests represented thereby have been duly and validly
authorized by the Partnership’s Charter Documents and, when issued and delivered in accordance with
the terms of this Agreement, will be validly issued, fully paid (to the extent required under the
Partnership’s organizational documents) and nonassessable (except as such nonassessability may be
affected by matters described in the Partnership’s Registration Statement on Form S-3 filed with
the SEC on March 6, 2008). The Common Units issuable upon conversion of the Class B Units and the
Limited Partner Interests represented thereby have been duly and validly authorized by the
Partnership’s Charter Documents and, when issued and delivered upon conversion of the Class B
Units, will be validly issued, fully paid (to the extent required under the Partnership’s
organizational documents) and nonassessable (except as such nonassessability may be affected by
matters described in the Partnership’s Registration Statement on Form S-3 filed with the SEC on
March 6, 2008).

ARTICLE V.

COVENANTS AND AGREEMENTS

     5.1 Conduct of the Operations. Except as specifically provided in this Agreement, the
Seller Concurrent Agreements or the Omnibus Agreement, during the period from the date of this
Agreement until the Closing Date, each Seller Party shall, and shall cause the Subject Entities to,
(i) conduct its respective operations in accordance with its ordinary course of

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business consistent
with past practices, (ii) use reasonable commercial efforts to preserve, maintain and protect its
respective material assets, Contracts, rights and properties, (iii) not terminate, materially amend
or enter into material agreements affecting the Subject Entity Assets except in the ordinary course
of business consistent with past practice, (iv) cause the Subject Entities to maintain insurance
policies with coverage on the Subject Entity Assets presently furnished by nonaffiliated third
parties in the amounts and types presently in effect, (v) use commercially reasonable efforts to
maintain all material Contracts of the Subject Entities, including, without limitation, real
property leases, in full force and effect, (vi) cause the Subject Entities not to transfer, sell, hypothecate,
distribute, Encumber or otherwise dispose of any material assets of the Subject Entities except for
sales and dispositions in the ordinary course of business consistent with past practices, (vii) not
amend or restate the Charter Documents of the Seller Parties in a manner which would require any
consent to be obtained to effect the transactions contemplated herein or in the Omnibus Agreement
or which could reasonably be expected to hinder, impede, delay or adversely affect the consummation
of the transactions contemplated herein, (viii) cause the Subject Entities not to amend or restate
their respective Charter Documents in any manner or issue any Capital Stock or options, warrants or
other rights convertible into or exchangeable for Capital Stock of any Subject Entity, (viii) sell,
assign, transfer, Encumber or otherwise dispose of all or any portion of the Subsidiary Interests
or the Assigned Interest or grant any option to purchase or right of first refusal in connection
therewith to any Person or (viii) commit to do the foregoing.

     5.2 Access. From the date of this Agreement until the Closing Date, each Seller Party
shall, upon reasonable advance notice by the Partnership, (i) provide each Buyer Party and its
representatives reasonable access, during normal business hours, to the Subject Entity Assets and
(ii) as promptly as possible furnish to each Buyer Party such documents and information concerning
the Subsidiary Interests, the Assigned Interest and the Subject Entity Assets as the Partnership
from time to time may reasonably request.

     5.3 Additional Agreements. Subject to the terms and conditions of this Agreement, the
Concurrent Agreements and the Omnibus Agreement, each of the Parties shall use its commercially
reasonable efforts to do or cause to be done all actions necessary or advisable under applicable
Laws to consummate and make effective the transactions contemplated by this Agreement, including
the fulfillment of the conditions set forth in Article VI, to the extent that the
fulfillment of such conditions is within the control of such Party; provided, however, that in no
event shall any Party or its affiliates be required to divest any interest that they may have in
any material assets or business. Subject to the foregoing, if at any time after the Closing Date
any further action is necessary or desirable to carry out the purposes of this Agreement, the
Parties and their duly authorized representatives shall use commercially reasonable efforts to take
all such action.

     5.4 Further Assurances. From time to time after the date hereof, and without any
further consideration, the Parties agree to execute, acknowledge and deliver such additional
agreements, instruments, notices, certificates and other documents, and take such actions, as may
be necessary or appropriate to more fully and effectively vest in the applicable Parties and their
respective successors and assigns legal, beneficial and record title to the property, rights and
interests contributed, assigned or otherwise granted herein or in the Concurrent Agreements,
including, without limitation, the Omnibus Agreement and more fully and effectively carry out

13

 

the purposes and intent of this Agreement and the Concurrent Agreements, including, without limitation,
the Omnibus Agreement. It is the express intent of the Parties that the Partnership (and OLP, as
the assignee of the Partnership) own all right, title and interest in and to the Assigned Interest,
and that Enterprise Holding III own all right, title and interest in and to the Subsidiary
Interests as of the Closing Date.

     5.5 Investment Representations.

          (a) EPO and the other Seller Parties have substantial experience analyzing and investing in
companies like the Partnership and OLP, and Seller Parties are capable of evaluating the merits and
risks of an investment in the Partnership. To the extent Seller Parties have deemed it necessary,
Seller Parties have retained at their own expense and relied upon appropriate professional advice
regarding the investment in the Unit Consideration, including, without limitation, tax, accounting
and legal advice with respect to thereto. Enterprise GTM is an accredited investor, as such term
is defined in Rule 501 promulgated under the Securities Act of 1933, as amended, is able to bear
the economic risk of its investment in the Partnership and has sufficient net worth to sustain a
loss of its entire investment in the Partnership if such loss should occur.

          (b) Enterprise GTM has had an opportunity to discuss the Partnership’s business, management
and financial affairs with the General Partner and other representatives of the Partnership and has
had an opportunity to review the Partnership’s operations and facilities. Enterprise GTM has had
an opportunity to ask questions of such Partnership personnel, which questions have been answered
to Enterprise GTM’s satisfaction. Enterprise GTM acknowledges it is familiar with the nature of
the Partnership’s business. Enterprise GTM acknowledges that an investment in the Unit
Consideration involves numerous risks, including those described under the heading “Risk Factors”
in the Partnership’s Registration Statement filed on Form S-3 with the United States Securities and
Exchange Commission on March 6, 2008 and in the Partnership’s other filings with the United States
Securities and Exchange Commission.

          (c) Enterprise GTM is acquiring the Unit Consideration solely for investment for its own
account, not as a nominee or agent, and not with the view to, or for resale in connection with, any
distribution thereof. Enterprise GTM acknowledges that the Unit Consideration has not been
registered under the Securities Act or applicable state securities laws by reason of a specific
exemption from the registration provisions thereof, the availability of which depends upon, among
other things, the bona fide nature of the investment intent and the accuracy of EDP’s
representations as expressed herein. Enterprise GTM acknowledges that the Partnership is relying,
in part, upon the representations and warranties contained in this Section 5.6 for the purpose of
determining whether this transaction meets the requirements for such exemptions. Enterprise GTM
acknowledges that it must bear the economic risk of its investment in the Unit Consideration for an
indefinite period of time because the Unit Consideration must be held indefinitely unless
subsequently registered under the Securities Act and applicable state securities laws or unless an
exemption from such registration is available.

          (d) Enterprise GTM is aware of the current provisions of Rule 144 promulgated under the
Securities Act which permit limited resales of securities purchased in a private placement subject
to the satisfaction of certain conditions. EPD acknowledges that any

14

 

transfer agent of the
Partnership will be issued stop transfer instructions with respect to such Unit
Consideration unless such transfer is subsequently registered under the Securities Act and
applicable state securities laws or unless an exemption from such registration is available. EPD
acknowledges that the Certificate shall bear the legend set forth in the Partnership Agreement and
the a legend in substantially the following form:

THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE
SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR ANY STATE SECURITIES LAWS. THE
SECURITIES MAY NOT BE OFFERED, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF
(A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE ACT OR (B) AN
OPINION OF COUNSEL SELECTED BY THE HOLDER AND REASONABLY ACCEPTABLE TO DUNCAN ENERGY
PARTNERS L.P. (THE “PARTNERSHIP”), IN A FORM GENERALLY ACCEPTABLE TO THE
PARTNERSHIP, THAT REGISTRATION IS NOT REQUIRED UNDER THE ACT OR (II) UNLESS SOLD
PURSUANT TO RULE 144 OR RULE 144A UNDER SAID ACT.

     The legend set forth above shall be removed, and the Partnership shall issue a certificate
without such legend to the holder of the Unit Consideration, if, unless otherwise required by state
securities laws, (i) such Unit Consideration is registered for resale under the Securities Act,
(ii) in connection therewith, the holder provides the Partnership with an opinion of counsel
reasonably acceptable to the Partnership, in a generally acceptable form, to the effect that such
sale, assignment or transfer of the Unit Consideration may be made without registration under the
applicable requirements of the Securities Act and applicable state securities laws or (iii) such
holder provides the Partnership with reasonable assurances of the holder’s belief that the Unit
Consideration may be sold, assigned or transferred pursuant to Rule 144 or Rule 144A promulgated
under the Securities Act.

     5.6 HSR. The Parties acknowledge they have previously made all filings required under
the HSR Act. Each Party shall: (i) keep the other Parties reasonably informed of any communication
received by such Party from, or given by such Party to any Governmental Entity, and of any
communication received or given in connection with any proceeding by a private party, in each case
regarding the HSR filings and (ii) permit each other Party to review and incorporate the other
Party’s reasonable comments in any communication given by such Party to any Governmental Entity or
in connection with any proceeding by a private party related to the HSR Act with any other Person.
The General Partner of the Partnership shall be entitled to direct any proceedings or negotiations
with any Governmental Entity or other Person relating to the filings under the HSR; provided, that
the General Partner shall afford EPD a reasonable opportunity to participate therein. The
Partnership shall not be required to (i) sell or otherwise dispose of, or hold separate or agree to
sell or otherwise dispose of, assets, categories of assets or businesses of the Partnership or its
subsidiaries, (ii) terminate existing relationships, contractual rights or obligations of the
Partnership or its subsidiaries, (iii) terminate any venture or other arrangement or (iv) effect
any other change or restructuring of the Partnership or its subsidiaries.

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ARTICLE VI.

CONDITIONS TO CLOSING

     6.1 Conditions to Each Party’s Obligation to Close. The obligations of Buyer Parties
to consummate the transactions contemplated by this Agreement shall be subject to the satisfaction,
at or prior to the Closing, of each of the conditions listed in this Section 6.1 and each
of the conditions listed in Section 6.2 (collectively, the “Buyer Conditions Precedent”),
and the obligations of Seller Parties to consummate the transactions contemplated by this Agreement
shall be subject to the satisfaction, at or prior to the Closing, of each of the conditions listed
in this Section 6.1 and each of the conditions listed in Section 6.3 (collectively,
the “Seller Conditions Precedent”). The General Partner of the Partnership, on behalf of the Buyer
Parties, and EPD, on behalf of the Seller Parties, shall have the right to waive in writing any or
all of such Parties’ conditions precedent to Closing; provided, that no waiver by Buyer Parties or
Seller Parties of any particular condition precedent to Closing shall constitute a waiver by such
Parties of any other condition precedent to Closing. Subject to the foregoing, the following are
conditions precedent to all Parties’ obligations to effect the Closing:

          (a) No Restraint. No temporary restraining order, preliminary or permanent injunction
or other Order issued by any Governmental Entity or other legal restraint or prohibition preventing
the consummation of the transactions contemplated by this Agreement shall be in effect.

          (b) Legality of Transactions. No Action shall have been taken and no Law shall have
been enacted by any Governmental Entity that makes the consummation of the transactions
contemplated by this Agreement illegal.

     6.2 Conditions to the Buyer Parties’ Obligation to Close. The obligation of the Buyer
Parties to consummate the transactions contemplated by this Agreement shall be subject to the
satisfaction (or waiver by the General Partner of the Partnership), at or prior to the Closing, of
each of the following Buyer Conditions Precedent:

          (a) Consents. The Consents described in Seller Disclosure Schedule 3.3 shall
have been filed, occurred, or been obtained, including, without limitation, the required filing
under the HSR Act and the expiration or termination of the applicable waiting period with respect
thereto.

          (b) Representations and Warranties. The representations and warranties of Seller
Parties set forth in this Agreement and the Concurrent Agreements, including, without limitation,
the Omnibus Agreement, shall be true and correct (without giving effect to any materiality standard
or Material Adverse Effect qualification) as of the date of this Agreement and as of the Closing
Date as though made on and as of the Closing Date (except to the extent representations and warranties speak as of a
specified date, which representations and warranties shall speak only as of such date), except to
the extent that the failure of such representations and warranties to be true and correct would
not, in the aggregate, result in a Material Adverse Effect with respect to the Assigned Interest or
the Subject Entities taken as a whole, and the Buyer Parties shall have received a certificate to
such effect signed on behalf of the Seller Parties by a duly authorized representative of EPD.

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          (c) Performance of Obligations. The Seller Parties shall have performed in all
material respects (provided that any covenant or agreement of the Seller Parties contained herein
that is qualified by a materiality standard shall not be further qualified hereby) all obligations
required to be performed by the Seller Parties under this Agreement prior to the Closing Date, and
the Buyer Parties shall have received a certificate to such effect executed by a duly authorized
representative of EPD on behalf of the Seller Parties (such certificate, together with the
certificate described in clause (b) above, the “Seller Party Closing Certificate”).

          (d) Seller Party Concurrent Agreements. The Seller Parties shall have executed and
delivered the documents set forth in Section 2.2, including the Seller Party Concurrent
Agreements, including, without limitation, the Omnibus Agreement, to Buyer Parties.

          (e) No Material Adverse Effect. Since September 30, 2008, no event or occurrence
shall have taken place which has had, or is reasonably likely to have, a Material Adverse Effect on
the Assigned Interest, the Subsidiary Interests or the Subject Entities taken as a whole.

          (f) Financing. The Partnership shall have (a) received the Debt Proceeds pursuant to
the Term Loan and (b) received the Offering Proceeds from the Equity Offering.

          (g) Assignment of Subsidiary Interests and Execution of Amended Entity Agreements. The
assignments of the Subsidiary Interests and conversion of such interests in accordance with the
Amended Entity Agreements shall have been consummated, and the Partnership shall have copies of the
executed and delivered Amended Entity Agreements, certified by the general partner or managing
member to be true, correct and complete copies thereof.

     6.3 Conditions to the Seller Parties’ Obligation to Close. The obligation of the
Seller Parties to consummate the transactions contemplated by this Agreement shall be subject to
the satisfaction (or waiver by EPD on behalf of the Seller parties), at or prior to the Closing, of
each of the following Seller Conditions Precedent:

          (a) Consents. The authorizations, consents, Orders or approvals described in
Schedule 4.3 shall have been filed, occurred, or been obtained, including, without
limitation, the required filing under the HSR Act and the expiration or termination of the
applicable waiting period with respect thereto.

          (b) Representations and Warranties. The representations and warranties of Buyer
Parties set forth in this Agreement and the Concurrent Agreements, including, without limitation,
the Omnibus Agreement, shall be true and correct (without giving effect to any materiality standard
or Material Adverse Effect qualification) as of the date of this Agreement and as of the Closing
Date as though made on and as of the Closing Date (except to the extent representations and
warranties speak as of a specified date, which representations and warranties shall speak only as
of such date), except to the extent that the failure of such representations and warranties to be
true and correct would not, in the aggregate, result in a Material Adverse Effect with respect to
the Buyer Parties taken as a whole, and the Seller Parties shall have received a

17

 

certificate to
such effect signed on behalf of the Buyer Parties by a duly authorized representative of the
General Partner of the Partnership.

          (c) Performance of Obligations. The Buyer Parties shall have performed in all
material respects (provided that any covenant or agreement of the Buyer Parties contained herein
that is qualified by a materiality standard shall not be further qualified hereby) all obligations
required to be performed by the Buyer Parties under this Agreement prior to the Closing Date, and
the Seller Parties shall have received a certificate to such effect executed by a duly authorized
representative of the General Partner of the Partnership on behalf of the Buyer Parties (such
certificate, together with the certificate described in clause (b) above, the “Buyer Party Closing
Certificate”).

          (d) The Buyer Party Concurrent Agreements. The Buyer Parties shall have executed and
delivered the documents required pursuant to Section 2.3, including, without limitation,
the DEP Amendment and the other Buyer Party Concurrent Agreements, to Seller Parties.

          (e) Cash Consideration. The Buyer Parties shall have delivered the Cash Consideration
in accordance with Section 1.2(a)(i).

          (f) Certificates. The Buyer Parties shall have delivered the Instruction Letter in
accordance with Sections 1.2(a)(ii).

          (g) NYSE Listing. The Common Units issuable upon conversion of the Class B Units shall have been approved for
listing by the New York Stock Exchange subject to official notice of issuance.

ARTICLE VII.

TERMINATION

     7.1 Termination.

          (a) Right to Terminate. This Agreement may be terminated and the transactions
contemplated hereby abandoned at any time prior to the Closing:

          (i) by mutual written consent of EPO and the General Partner of the Partnership;

          (ii) by written notice by either EPO or the General Partner of the Partnership if the
Closing has not occurred by December 31, 2008 (the “Termination Date”); provided, however,
that the foregoing right to terminate this Agreement shall not be available to any Party
whose breach of this Agreement has been the cause of, or resulted in, the failure of the
Closing to occur on or before such date;

          (iii) by either EPO or the General Partner of the Partnership if a Governmental Entity
shall have issued an Order or taken any other action, in each case permanently restraining,
enjoining, or otherwise prohibiting the transactions contemplated by this Agreement; or

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          (iv) by either EPO or the General Partner of the Partnership in the event of a material
breach by any Buyer Party or Seller Party, as applicable, of any representation, warranty,
covenant or other agreement contained in this Agreement which (A) would give rise to the
failure of a Buyer Condition Precedent or a Seller Condition Precedent, as applicable, and
(B) cannot be or has not been cured within the shorter of (x) 20 days following receipt by
the breaching party of written notice of such breach or (y) the business day immediately
preceding the Termination Date.

          (b) Effect of Investigation. The right of any Party to terminate this Agreement
pursuant to this Section 7.1 shall remain operative and in full force and effect regardless
of the actual or constructive knowledge of such Party regarding the subject matter giving rise to
such right of termination.

     7.2 Effect of Termination. Upon termination of this Agreement pursuant to Section
7.1, the undertakings of the Parties set forth in this Agreement shall forthwith be of no
further force and effect; provided, however, that no such termination shall relieve any party of any liability for intentional
material breach of any term or provision hereof.

ARTICLE VIII.

INTERPRETATION; DEFINED TERMS

     8.1 Interpretation. It is expressly agreed that this Agreement shall not be construed
against any Party, and no consideration shall be given or presumption made, on the basis of the
Party that drafted this Agreement or any particular provision hereof or who supplied the form of
Agreement. Each Party agrees that this Agreement has been purposefully drawn and correctly
reflects its understanding of the transaction that this Agreement contemplates. In construing this
Agreement:

          (a) examples shall not be construed to limit, expressly or by implication, the matter they
illustrate;

          (b) the word “includes” and its derivatives means “includes, but is not limited to” and
corresponding derivative expressions;

          (c) a defined term has its defined meaning throughout this Agreement and each Exhibit, Annex
or Schedule to this Agreement, regardless of whether it appears before or after the place where it
is defined;

          (d) each Exhibit, Annex and Schedule to this Agreement is a part of this Agreement, but if
there is any conflict or inconsistency between the main body of this Agreement and any Exhibit,
Annex or Schedule, the provisions of the main body of this Agreement shall control, and if there is
a conflict or inconsistency between the main body of this Agreement and the Omnibus Agreement, the
Omnibus Agreement shall control;

          (e) the term “cost” includes expense and the term “expense” includes cost;

          (f) the headings and titles herein are for convenience only and shall have no significance in
the interpretation hereof;

19

 

          (g) the inclusion of a matter on a Schedule in relation to a representation or warranty shall
not be deemed an indication that such matter necessarily would, or may, breach such representation
or warranty absent its inclusion on such Schedule;

          (h) any reference to a statute, regulation or Law shall include any amendment thereof or any
successor thereto and any rules and regulations promulgated thereunder;

          (i) currency amounts referenced herein, unless otherwise specified, are in U.S. Dollars;

          (j) unless the context otherwise requires, all references to time shall mean time in Houston,
Texas;

          (k) whenever this Agreement refers to a number of days, such number shall refer to calendar
days unless business days are specified; and

          (l) if a term is defined as one part of speech (such as a noun), it shall have a corresponding
meaning when used as another part of speech (such as a verb).

     8.2 References, Gender, Number. All references in this Agreement to an “Article,”
“Section,” “subsection,” “Exhibit” or “Schedule” shall be to an Article, Section, subsection,
Exhibit or Schedule of this Agreement, unless the context requires otherwise. Unless the context
clearly requires otherwise, the words “this Agreement,” “hereof,” “hereunder,” “herein,” “hereby,”
or words of similar import shall refer to this Agreement as a whole and not to a particular
Article, Section, subsection, clause or other subdivision hereof. Cross references in this
Agreement to a subsection or a clause within a Section may be made by reference to the number or
other subdivision reference of such subsection or clause preceded by the word “Section.” Whenever
the context requires, the words used herein shall include the masculine, feminine and neuter
gender, and the singular and the plural.

     8.3 Defined Terms. Unless the context expressly requires otherwise, the respective
terms defined in this Section 8.3 shall, when used in this Agreement, have the respective
meanings herein specified.

     “Action” shall mean any claim, action, suit, investigation, inquiry, proceeding, condemnation
or audit by or before any court or other Governmental Entity or any arbitration proceeding.

     “affiliate” means, with respect to a specified person, any other person controlling,
controlled by or under common control with that first person. As used in this definition, the term
“control” includes (i) with respect to any person having voting securities or the equivalent and
elected directors, managers or persons performing similar functions, the ownership of or power to
vote, directly or indirectly, voting securities or the equivalent representing 50% or more of the
power to vote in the election of directors, managers or persons performing similar functions, (ii)
ownership of 50% or more of the equity or equivalent interest in any person and (iii) the ability
to direct the business and affairs of any person by acting as a general partner, manager or
otherwise. Notwithstanding the foregoing, for purposes of this Agreement, the Seller Parties, on

20

 

the one hand, and the Buyer Parties, on the other hand, shall not be considered affiliates of each
other.

     “Agreement” shall have the meaning set forth in the preamble.

     “Amended and Restated Omnibus Agreement” means the Amended and Restated Omnibus Agreement in
the form set forth as Exhibit A hereto.

     “Amended Entity Agreements” means the Amended and Restated Agreements of Limited Partnership
of Enterprise GC, the Amended and Restated Agreement of Limited Partnership of Enterprise
Intrastate, and the Amended and Restated Limited Liability Company
Agreement of Enterprise Texas, in the forms as set forth on Exhibits B, C and D, respectively,
hereto.

     “Assignment” shall have the meaning set forth in Section 1.1

     “Assigned Interest” shall have the meaning set forth in the Recitals.

     “Business Day” means any day on which banks are open for business in the State of Texas, other
than Saturday or Sunday.

     “Buyer Conditions Precedent” shall have the meaning set forth in Section 6.1.

     “Buyer Parties” shall have the meaning set forth in the Preamble.

     “Buyer Party Closing Certificate” shall have the meaning set forth in Section 6.3(c).

     “Buyer Party Concurrent Agreements” shall have the meaning set forth in Section
2.3(e).

     “Capital Stock” of a Person means all equity securities authorized for issuance by the Charter
Documents of such Person, including membership interests, partnership interests or other equity
interests of such Person.

     “Cash Consideration” shall have the meaning given in the Recitals.

     “Certificates” shall have the meaning given such term in Section 1.2(a)(ii).

     “Charter Documents” means, for any Person, the organizational governing documents of such
Person, including, without limitation, any memorandum of association, articles of association,
articles of incorporation, articles of organization, articles of formation, certificate of
formation, certificate of incorporation, certificate of organization, bylaws, limited liability
company agreement, limited partnership agreement or other governing documents of any nature, all
as amended or supplemented as in effect on the Closing Date.

     “Class B Units” means the Class B Units representing limited partner interests of the
Partnership.

     “Closing” shall have the meaning set forth in Section 1.1.

21

 

     “Closing Date” shall have the meaning set forth in Section 2.1.

     “Code” means the Internal Revenue Code of 1986, as amended.

     “Common Units” has the meaning assigned to such term in the Partnership Agreement.

     “Consents” means all authorizations, consents, Orders or approvals of, or registrations,
declarations or filings with, or expiration of waiting periods imposed by, any Governmental Entity,
and any consents or approvals of any other third party, in each case that are required by
applicable Law or by Contract in order to consummate the transactions contemplated by this
Agreement and the Concurrent Agreements.

     “Concurrent Agreements” means the Seller Party Concurrent Agreements and the Buyer Party
Concurrent Agreements.

     “Contract” means any written or oral contract, agreement, indenture, instrument, note, bond,
loan, lease, mortgage, franchise, license agreement, purchase order, binding bid or offer, binding
term sheet or letter of intent or memorandum, commitment, letter of credit or any other legally
binding arrangement, including any amendments or modifications thereof and waivers relating
thereto.

     “Debt Proceeds” shall have the meaning set forth in the Recitals.

     “DEP Amendment” means the Third Amendment to Amended and Restated Agreement of Limited Partnership of
Duncan Energy Partners L.P. dated as of the Closing Date, the form of which is attached as
Exhibit F to this Agreement.

     “Effective Time” shall have the meaning set forth in Section 2.1.

     “Encumbrance” or “Encumbrances” means and includes security interests or agreements,
mortgages, liens, pledges, charges, assignments, including collateral assignments, easements,
purchase options, reservations, rights of way, servitudes, rights of first refusal, community
property interests, equitable interests, claims, indentures, deeds of trust, encroachments,
licenses or leases to third parties, restrictions of any kind and all other encumbrances, whether
or not relating to the extension of credit or the borrowing of money.

     “Enterprise Holding III” shall have the meaning set forth in the Preamble.

     “Enterprise Holding III Member Interests” shall have the meaning set forth in the Recitals.

     “Enterprise GC” shall have the meaning set forth in the Recitals.

     “Enterprise GTM” shall have the meaning set forth in the Preamble.

     “Enterprise Intrastate” shall have the meaning set forth in the Recitals.

     “Enterprise Texas” shall have the meaning set forth in the Recitals.

22

 

     “EPD” shall mean Enterprise Products Partners L.P., a Delaware limited partnership.

     “EPO” shall have the meaning set forth in the Preamble.

     “Equity Offering” means the registered offering of Units by DEP pursuant to its registration
statement on Form S-3 and the Unit Purchase Agreement.

     “GAAP” means generally accepted accounting principles in the United States, consistently
applied by the applicable Person, as in effect on the date of determination.

     “General Partner” shall have the meaning set forth in the Preamble.

     “Governmental Entity” means any Federal, state, local, regional, commonwealth, state, local,
foreign or other governmental agency, authority, administrative agency, regulatory body,
commission, instrumentality, court or arbitral tribunal having governmental or quasi-governmental
powers.

     “Gross Consideration” shall have the meaning set forth in Section 1.2.

     “HSR Act” means the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended.

     “Indebtedness” means, with respect to any Person, without duplication, (i) all obligations of
such Person for borrowed money, including all principal, interest, premiums, fees, expenses,
overdrafts and penalties with respect thereto, whether short-term or long-term, whether secured or
unsecured, (ii) all obligations of such Person evidenced by loan agreements, mortgages, bonds,
indentures, debentures, promissory notes or similar instruments, (iii) all obligations of such
Person upon which interest charges are customarily paid (other than trade payables incurred in the
ordinary course of business), (iv) all obligations of such Person under conditional sale or other
title retention agreements relating to property or assets purchased by such Person, (v) all
obligations of such Person issued or assumed as the deferred purchase price of property or services
(other than trade payables incurred in the ordinary course of business), (vi) all Indebtedness of
such Person or others secured by (or for which the holder of such Indebtedness has an existing
right, contingent or otherwise, to be secured by) an Encumbrance on property owned or acquired by
such Person, whether or not the obligations secured thereby have been assumed, (vii) all
guarantees, whether direct or indirect, by such Person of Indebtedness of others or Indebtedness of
any other Person secured by any assets of such Person, (viii) all capital leases of such Person,
(ix) all net payments that such Person would have to make in the event of an early termination, on
the date Indebtedness of such Person is being determined, in respect of outstanding interest rate
protection agreements, foreign currency exchange agreements or other interest or exchange rate
hedging arrangement, (x) all obligations of such Person as an account party in respect of letters
of credit and bankers’ acceptances, (xi) obligations of such Person to purchase, redeem, retire,
defease or otherwise acquire for value any Capital Stock of such Person or any warrants, rights or
options to acquire such Capital Stock, (xii) renewals, extensions, refundings, deferrals,
restructurings, amendments and modifications of any such Indebtedness, obligation or guarantee, and
(xiii) any other obligation that in accordance with GAAP is required to be reflected as debt on an
balance sheet of a Person (other than trade payables incurred in the ordinary course of business).

23

 

     “Instruction Letter” has the meaning given in Section 1.2(a)(ii).

     “knowledge” and any variations thereof or words to the same effect shall mean actual knowledge
after reasonable inquiry.

     “Laws” means all statutes, laws, rules, regulations, Orders, ordinances, writs, injunctions,
judgments and decrees of all Governmental Entities.

     “Lenders” shall have the meaning set forth in the Recitals.

     “Limited Partner Interest” shall have the meaning assigned to such term in the Partnership
Agreement.

     “Material Adverse Effect” means any adverse change, circumstance, effect or condition in or
relating to the assets, financial condition, results of operations, or business of any person that
materially affects the business of such person or that materially impedes the ability of any person
to consummate the transactions contemplated hereby, other than any change, circumstance, effect or
condition in the refining or pipelines industries generally (including any change in the prices of
crude oil, natural gas, natural gas liquids, feedstocks or refined products or other hydrocarbon
products, industry margins or any regulatory changes or changes in Law) or in United States or
global economic conditions or financial markets in general. Any determination as to whether any
change, circumstance, effect or condition has a Material Adverse Effect shall be made only after
taking into account all effective insurance coverages and effective third-party indemnifications
with respect to such change, circumstance, effect or condition.

     “Offering Proceeds” shall have the meaning set forth in the Recitals.

     “OLP” shall have the meaning set forth in the Preamble.

     “OLP GP” shall have the meaning set forth in the Preamble.

     “Omnibus Agreement” means the Omnibus Agreement, dated February 5, 2007, by and among the
Partnership, the General Partner, the OLP, OLP GP and EPO.

     “Operating Partnership” shall have the meaning set forth in the Preamble.

     “Order” means any order, writ, injunction, decree, compliance or consent order or decree,
settlement agreement, schedule and similar binding legal agreement issued by or entered into with a
Governmental Entity.

     “Outstanding Interests” shall have the meaning set forth in Section 3.4.

     “Partnership” shall have the meaning set forth in the Preamble.

     “Partnership Agreement” means the Amended and Restated Agreement of Limited Partnership, dated
as of February 5, 2007, of the Partnership, as amended by Amendment No. 1

24

 

thereto, dated as of
February 5, 2007 and Amendment No. 2 thereto, executed November 6, 2008 but dated effective as of
February 5, 2007.

     “Party” and “Parties” shall have the meanings set forth in the Preamble.

     “Person” means any individual, firm, corporation, partnership, limited liability company,
trust, joint venture, Governmental Entity or other entity.

     “Revolving Credit Facility” means Revolving Credit Agreement, dated as of January 5, 2007,
among the Partnership, as borrower, Wachovia Bank, National Association, as Administrative Agent,
The Bank of Nova Scotia and Citibank, N.A., as Co-Syndication Agents,
JPMorgan Chase Bank, N.A. and Mizuho Corporate Bank, Ltd., as Co-Documentation Agents, and
Wachovia Capital Markets, LLC, The Bank of Nova Scotia and Citigroup Global Markets Inc., as Joint
Lead Arrangers and Joint Book Runners, as amended by the First Amendment dated as of September 30,
2007, and as may be further amended prior to the Closing.

     “Seller Conditions Precedent” shall have the meaning set forth in Section 6.1.

     “Seller Parties” shall have the meaning set forth in the Preamble.

     “Seller Party Closing Certificate” shall have the meaning set forth in Section 6.2(c).

     “Seller Party Concurrent Agreements” shall have the meaning set forth in Section
2.2(a).

     “Subject Entity” means Enterprise GC, Enterprise Intrastate and Enterprise Texas, as
applicable, and “Subject Entities” means Enterprise GC, Enterprise Intrastate and Enterprise Texas,
collectively.

     “Subject Entity Assets” shall have the meaning set forth in Section 3.6(b).

     “Subject Liabilities” shall have the meaning set forth in Section 1.4.

     “Subsidiary Interests” shall have the meaning set forth in Section 1.1

     “Termination Date” shall have the meaning set forth in Section 7.1(a)(ii).

     “Term Loan” shall have the meaning set forth in the Recitals.

     “Transfer” shall have the meaning set forth in Section 9.2(a).

     “Unit Consideration” means 37,333,887 Class B Units.

     “Unit Purchase Agreement” means the Unit Purchase Agreement dated as of December 8, 2008,
among the Partnership and EPO, providing for the purchase of 41,529 Common Units by such purchaser.

25

 

ARTICLE IX.

MISCELLANEOUS

     9.1 Expenses. Except as expressly provided herein or in the Omnibus Agreement, all
costs and expenses incurred by the Parties in connection with the consummation of the transactions
contemplated hereby shall be borne solely and entirely by the Party which has incurred such cost or
expense.

     9.2 Notices.

          (a) Any notice or other communication given under this Agreement shall be in writing and shall
be (i) delivered personally, (ii) sent by nationally recognized overnight courier service, (iii)
sent by facsimile transmission, or (iv) sent by first class mail, postage prepaid (certified or
registered mail, return receipt requested). Such notice shall be deemed to have been duly given
(w) on the date of the delivery, if delivered personally, (x) on the Business Day after deposited
with a nationally recognized overnight courier service, if sent in such manner, (y) on the date of
facsimile transmission, if so transmitted on a Business Day during normal business hours, with
confirmation of successful transmission confirmed by the sender’s facsimile machine, and otherwise
on the next succeeding Business Day, or (z) on the fifth Business Day after sent by first class
mail, postage prepaid, if sent in such manner. Notices or other communications shall be directed
to the following addresses:

Notices to any of the Seller Parties:

Enterprise Products Operating LLC

1100 Louisiana Street, 10th Floor

Houston, Texas 77002

Attention: General Counsel

Facsimile No.: (713) 381-8200

Notices to any of the Buyer Parties:

Duncan Energy Partners L.P.

1100 Louisiana Street, 10th Floor

Houston, Texas 77002

Attention: General Counsel

Facsimile No.: (713) 381-8200

          (b) Either EPO or the Partnership may at any time change its address for service from time to
time by giving notice to the other Party in accordance with this Section 9.2.

     9.3 Severability. If any term of this Agreement is found to be invalid, illegal, or
incapable of being enforced under applicable Law or public policy, such term shall be deemed
amended to the minimum extent possible to make such term valid, legal and enforceable, and if such
term is not capable of being so amended, it shall be deemed excised from this Agreement, and the
other terms and conditions of this Agreement shall remain in full force and effect so long

26

 

as the economic or legal substance of the transactions contemplated herein are not affected in any manner
materially adverse to any Party.

     9.4 Governing Law. This Agreement shall be subject to and governed by the laws of the
State of Texas, excluding any conflicts of law rules or principle that might refer the construction
or interpretation of this Agreement to the laws of another state. Each Party hereby irrevocably
submits to the exclusive jurisdiction of the state and federal courts in the State of Texas
and to venue in Houston, Texas.

     9.5 Parties in Interest. This Agreement shall be binding upon and inure solely to the
benefit of each Party hereto and their successors and permitted assigns, and nothing in this
Agreement, express or implied, is intended to confer upon any other person any rights or remedies
of any nature whatsoever under or by reason of this Agreement.

     9.6 Assignment of Agreement. This Agreement may not be assigned by any Party without
the prior written consent of the other Parties other than by the Partnership to the OLP or in
connection with any collateral assignment for the benefit of securing obligations to lenders.

     9.7 Captions. The captions in this Agreement are for purposes of reference only and
shall not limit or otherwise affect the interpretation hereof.

     9.8 Counterparts. This Agreement may be executed in counterparts and delivered by
facsimile or portable document “.pdf” format, each of which shall be deemed an original, but all of
which when taken together shall constitute one and the same instrument.

     9.9 Director and Officer Liability. Except to the extent that they are an individual
signatory party hereto, the directors, managers, officers, partners and members of the Buyer
Parties, the Seller Parties and their respective affiliates shall not have any personal liability
or obligation arising under this Agreement (including any claims that another party may assert)
other than as an assignee of this Agreement or pursuant to a written guarantee.

     9.10 Integration. This Agreement and the Concurrent Agreements supersede any previous
understandings or agreements among the Parties, whether oral or written, with respect to their
subject matter. This Agreement and the Concurrent Agreements contain the entire understanding of
the Parties with respect to the subject matter hereof and thereof.

     9.11 Amendment. The Parties agree to negotiate in good faith any amendment to this
Agreement at any time another Party believes that business circumstances have changed. This
Agreement may only be amended by written instrument signed by the Partnership, on behalf of the
Buyer Parties, and EPO, on behalf of the Seller Parties. .

     9.12 Waiver of Limited Call Right. EPO hereby agrees that, for a period of 24 months
from the Closing Date, neither EPO or any of its Affiliates (as such term is defined in the
Partnership Agreement) or any of their successors in interest will exercise any of its rights under
Article XV of the Partnership Agreement unless the 80% threshold contemplated by such article is
achieved without giving effect (in the numerator or the denominator) to any of the Class B Units
constituting Unit Consideration or the Common Units issuable upon conversion thereof that then are
beneficially owned (excluding the effect of any transactions for which the primary

27

 

purpose was to
circumvent this provision) by the General Partner or any of its Affiliates, as contemplated by such
article.

[Remainder of page intentionally left blank. Signature pages follow.]

28

 

     IN WITNESS WHEREOF, the parties have executed this Agreement as of the date first set forth
above.

	 	 	 	 	 	 	 	 	 
	 	 	SELLER PARTIES:	 	 
	 
	 	 	 	 	 	 	 	 
	 	 	ENTERPRISE PRODUCTS OPERATING LLC	 	 
	 
	 	 	 	 	 	 	 	 
	 

	 	By:	 	/s/ Michael A. Creel 	 	 
	 	 	 	 	 	 	 
	 

	 	 	 	Michael A. Creel

President and Chief Executive Officer	 	 
	 
	 	 	 	 	 	 	 	 
	 	 	ENTERPRISE GTM HOLDINGS L.P.	 	 
	 
	 	 	 	 	 	 	 	 
	 

	 	By:
	 	Enterprise GTM GP, LLC	 	 
	 

	 	 	 	Its General Partner
	 	 
	 
	 	 	 	 	 	 	 	 
	 

	 	 	 	By:	 	/s/ Michael A. Creel 
	 

	 	 	 	 	 	 

Michael A. Creel

Executive Vice President
and Chief Financial Officer
	 	 

 

	 	 	 	 	 	 	 
	 	 	BUYER PARTIES:	 	 
	 
	 	 	 	 	 	 
	 	 	DEP HOLDINGS, LLC	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Richard H. Bachmann 	 	 
	 

	 	 	 	 

Richard H. Bachmann

President and Chief Executive Officer
	 	 
	 
	 	 	 	 	 	 
	 	 	DUNCAN ENERGY PARTNERS L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	By: DEP Holdings, LLC, its general partner	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Richard H. Bachmann 	 	 
	 

	 	 	 	 

Richard H. Bachmann

President and Chief Executive Officer
	 	 
	 
	 	 	 	 	 	 
	 	 	DEP OLP GP, LLC	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	Duncan Energy Partners L.P., its sole member	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	DEP Holdings, LLC, its general partner	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Richard H. Bachmann 	 	 
	 

	 	 	 	 

Richard H. Bachmann

President and Chief Executive Officer
	 	 
	 
	 	 	 	 	 	 
	 	 	DEP OPERATING PARTNERSHIP, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	By: DEP OLP GP, LLC, its general partner	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Richard H. Bachmann 	 	 
	 

	 	 	 	 

Richard H. Bachmann
	 	 
	 

	 	 	 	President and Chief Executive Officerexv10w2

Exhibit 10.2

EXECUTION COPY

CONTRIBUTION, CONVEYANCE AND ASSUMPTION AGREEMENT

BY AND AMONG

DUNCAN ENERGY PARTNERS L.P.,

DEP OLPGP, LLC

DEP OPERATING PARTNERSHIP, L.P.

ENTERPRISE GTM HOLDINGS L.P.

AND

ENTERPRISE HOLDING III, L.L.C.

DATED AS OF DECEMBER 8, 2008

 

 

TABLE OF CONTENTS

	 	 	 	 	 
	 	 	Page
	ARTICLE I DEFINITIONS; RECORDATION
	 	 	3	 
	1.1 Definitions
	 	 	3	 
	 
	 	 	 	 
	ARTICLE II THE OFFERING AND RELATED TRANSACTIONS
	 	 	4	 
	2.1 Contributions and Conversions of Existing Interests
	 	 	4	 
	2.2 Conversions of Existing Interests
	 	 	5	 
	2.3 Contribution by Enterprise GTM to DEP of the Enterprise Holding III Member Interests
	 	 	5	 
	2.4 DEP Cash Distribution to Enterprise GTM
	 	 	5	 
	2.5 DEP Issuance of Class B Units to Enterprise GTM
	 	 	5	 
	2.6 Conveyance and Contribution by DEP (including 0.001% on behalf of OLP GP) to OLP of the
Enterprise Holding III Member Interests
	 	 	6	 
	2.7 Amended and Restated Limited Liability Company Agreement of Enterprise Texas
	 	 	6	 
	2.8 Amended and Restated Agreement of Limited Partnership of Enterprise Intrastate
	 	 	6	 
	2.9 Amended and Restated Agreement of Limited Partnership of Enterprise GC
	 	 	6	 
	2.10 Amended and Restated Omnibus Agreement
	 	 	6	 
	 
	 	 	 	 
	ARTICLE III FURTHER ASSURANCES
	 	 	6	 
	3.1 Further Assurances
	 	 	6	 
	3.2 Other Assurances
	 	 	7	 
	 
	 	 	 	 
	ARTICLE IV MISCELLANEOUS
	 	 	7	 
	4.1 Order of Completion of Transactions
	 	 	7	 
	4.2 Headings; References; Interpretation
	 	 	7	 
	4.3 Successors and Assigns
	 	 	7	 
	4.4 No Third Party Rights
	 	 	7	 
	4.5 Counterparts
	 	 	8	 
	4.6 Governing Law
	 	 	8	 
	4.7 Assignment of Agreement
	 	 	8	 
	4.8 Amendment or Modification
	 	 	8	 
	4.9 Director and Officer Liability
	 	 	8	 
	4.10 Severability
	 	 	8	 
	4.11 Integration
	 	 	8	 
	 Exhibits
	Exhibit A – Amended and Restated Company Agreement of Enterprise Texas Pipeline, LLC
	Exhibit B – Second Amended and Restated Agreement of Limited Partnership of Enterprise
Intrastate, L.P.
	Exhibit C – Third Amended and Restated Agreement of Limited Partnership of Enterprise GC, LP

-i-

 

CONTRIBUTION, CONVEYANCE AND ASSUMPTION AGREEMENT

     THIS CONTRIBUTION, CONVEYANCE AND ASSUMPTION AGREEMENT (this “Agreement”) dated as of
December 8, 2008, is made and entered into by and among Duncan Energy Partners L.P., a Delaware
limited partnership (“DEP”), DEP Operating Partnership, L.P., a Delaware limited
partnership (“OLP”), DEP OLPGP, LLC, a Delaware limited liability company (“OLP
GP”) Enterprise GTM Holdings L.P., a Delaware limited partnership (“Enterprise GTM”)
and Enterprise Holding III, L.L.C., a Delaware limited liability company (“Enterprise Holding
III”). The above-named entities are sometimes referred to in this Agreement each as a
“Party” and collectively as the “Parties.” Certain capitalized terms used are
defined in Article I hereof.

RECITALS

     WHEREAS, Enterprise GTM owns a 99.0% member interest in Enterprise Texas Pipeline, LLC
(“Enterprise Texas”), a 99.0% limited partner interest in Enterprise Intrastate, LP
(“Enterprise Intrastate”) and a 99.0% limited partner interest in Enterprise GC, LP
(“Enterprise GC”).

     WHEREAS, Enterprise Holding III owns a 1.0% member interest in Enterprise Texas, a 1.0%
general partner interest in Enterprise Intrastate and a 1.0% general partner interest in Enterprise
GC.

     WHEREAS, the DEP has entered into a standby Term Loan Agreement, dated as of April 18, 2008,
with Wachovia Bank, National Association, as Administrative Agent and Lender, and the
co-syndication agents, co-documentation agents and other lenders named therein (the “Term Loan
Agreement”), to, among other things, allow DEP to borrow up to $300 million for: (i)
distribution to Enterprise GTM in connection with the contribution of the Subject Interests (as
defined below) under this Agreement and (ii) payment of transaction and bank expenses related to
the transactions contemplated by this Agreement.

     WHEREAS, Enterprise GTM desires to contribute to Enterprise Holding III an existing 50%
membership interest in Enterprise Texas, an existing limited partnership interest in Enterprise
Intrastate and an existing limited partner interest in Enterprise GC, with such contributed
existing interests and other interests owned by Enterprise Holding III to be converted in each case
as set forth in the applicable amended and restated limited liability company agreement or limited
partnership agreements described below and attached as Exhibits to this Agreement (collectively
referred to as the “Subject Interests”).

     WHEREAS, Enterprise GTM desires to contribute to DEP, and DEP desires to acquire from
Enterprise GTM, all of the membership interests in Enterprise Holding III (the “Enterprise
Holding III Member Interests”) as consideration for receipt of (i) cash and (ii) Class B
units representing limited partner interests of DEP (the “Class B Units”) with the rights,
privileges and obligations as set forth in the DEP Amendment.

     WHEREAS, DEP desires to contribute the Enterprise Holding III Member Interest to OLP as a
capital contribution.

 

 

     WHEREAS, concurrently with the consummation of the transactions contemplated hereby (the
“Closing”), each of the following matters shall occur:

          1. Enterprise GTM will contribute the membership and limited partner interests to Enterprise
Holding III, and the current general partner, limited partner and membership interests owned by
Enterprise Holding III and Enterprise GTM in each of Enterprise GC, Enterprise Intrastate and
Enterprise Texas will be converted into new general partner, limited partner and membership
interests, including the Subject Interests.

          2. Enterprise GTM will assign and convey the Enterprise Holding III Member Interests to DEP.

          3. DEP will contribute the Enterprise Holding III Member Interests to OLP (including 0.001% on
behalf of OLP GP).

          4. DEP will consummate a registered equity offering the “Equity Offering”) for 41,529
common units representing limited partner interests in DEP (“Common Units”) for an
aggregate purchase price of $500,000.

          5. DEP will borrow $282.25 million under the Term Loan Agreement (the “Debt
Proceeds”).

          6. DEP will use the aggregate net proceeds (after discounts and commissions, if any) from the
Equity Offering (the “Offering Proceeds”) and the Debt Proceeds to (i) pay transaction and
bank expenses of approximately $2.25 million and (ii) pay $280.0 million plus the net Offering
Proceeds to Enterprise GTM as the “Cash Consideration” for the contribution of the Subject
Interests.

          7. DEP will issue an aggregate of 37,333,887 Class B Units with an aggregate value of $449.5
million ($450.0 million less the value of the net Offering Proceeds) to Enterprise GTM as partial
consideration and the “Unit Consideration” for the contribution of the Subject Interests.

          8. The limited liability company agreement of Enterprise Texas and the agreements of limited
partnership of each of Enterprise Intrastate and Enterprise GC will each be amended and restated to
the extent necessary to reflect the applicable matters set forth above and as contained in this
Agreement.

          9. The omnibus agreement between Enterprise Products Operating LLC, a Texas limited liability
company (“EPO”), OLP and each of Enterprise Texas, Enterprise Intrastate and Enterprise GC
will be amended and restated to the extent necessary to reflect the applicable matters set forth
above and as contained in this Agreement.

     NOW, THEREFORE, in consideration of their mutual undertakings and agreements hereunder, the
Parties undertake and agree as follows:

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ARTICLE I

DEFINITIONS; RECORDATION

     1.1 Definitions. Capitalized terms used herein and not defined elsewhere in this Agreement shall
have the meanings given such terms as is set forth below.

     “affiliate” means, with respect to a specified person, any other person controlling,
controlled by or under common control with that first person. As used in this definition, the term
“control” includes (i) with respect to any person having voting securities or the equivalent and
elected directors, managers or persons performing similar functions, the ownership of or power to
vote, directly or indirectly, voting securities or the equivalent representing 50% or more of the
power to vote in the election of directors, managers or persons performing similar functions,
(ii) ownership of 50% or more of the equity or equivalent interest in any person and (iii) the
ability to direct the business and affairs of any person by acting as a general partner, manager or
otherwise.

     “Agreement” has the meaning assigned to such term in the first paragraph of this
Agreement.

     “Amended and Restated Agreements” means the amended and restated limited liability
company agreement of Enterprise Texas and the amended and restated agreement of limited partnership
of Enterprise GC and Enterprise Intrastate, in each case as executed on the date hereof in
substantially the same form as attached hereto as Exhibits A, B and C.

     “Cash Consideration” has the meaning assigned to such term in the recitals.

     “Class B Units” has the meaning assigned to such term in the recitals.

     “Common Units” has the meaning assigned to such term in the recitals and the DEP
Amendment.

     “Closing” has the meaning assigned to such term in the recitals.

     “Delaware LLC Act” has the meaning assigned to such term in the recitals.

     “Delaware LP Act” has the meaning assigned to such term in the recitals.

     “DEP” has the meaning assigned to such term in the first paragraph of this Agreement.

     “DEP Amendment” means the Third Amendment to Amended and Restated Agreement of Limited Partnership of
Duncan Energy Partners L.P. dated December 8, 2008.

     “Effective Date” means December 8, 2008.

     “Enterprise GC” means Enterprise GC, L.P., a Delaware limited partnership.

     “Enterprise Holding III” has the meaning assigned to such term in the first paragraph
of this Agreement.

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     “Enterprise
Intrastate” means Enterprise Intrastate L.P., a Delaware limited
partnership.

     “Enterprise Texas” has the meaning assigned to such term in the recitals.

     “EPO” has the meaning assigned to such term in the recitals.

     “General Partner” has the meaning assigned to such term in the first paragraph of this
Agreement.

     “Enterprise GTM” has the meaning assigned to such term in the first paragraph of this
Agreement.

     “Enterprise Holding III Member Interests” has the meaning assigned to such term in the
recitals.

     “Equity Offering” has the meaning assigned to such term in the recitals.

     “Laws” means any and all laws, statutes, ordinances, rules or regulations promulgated
by a governmental authority, orders of a governmental authority, judicial decisions, decisions of
arbitrators or determinations of any governmental authority or court.

     “Offering Proceeds” has the meaning assigned to such term in the recitals.

     “OLP” has the meaning assigned to such term in the first paragraph of this Agreement.

     “OLP GP” has the meaning assigned to such term in the first paragraph of this
Agreement.

     “Party” and “Parties” have the meanings assigned to such terms in the first paragraph
of this Agreement.

     “Subject Interests” has the meaning assigned to such term in the recitals.

     “Term Loan Agreement” has the meaning assigned to such term in the recitals.

     “Units” has the meaning assigned to such term in the recitals.

     “Unit Consideration” has the meaning assigned to such term in the recitals.

ARTICLE II

THE OFFERING AND RELATED TRANSACTIONS

     2.1
Contributions and Conversions of Existing Interests. Enterprise GTM hereby grants, contributes, transfers, assigns and conveys to Enterprise
Holding III, its successors and assigns, for its and their own use forever, and Enterprise Holding
III hereby accepts the contributions of the following interests from Enterprise GTM:

     (1) a 50% membership interest in Enterprise Texas to Enterprise Holding III;

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     TO HAVE AND TO HOLD the 50% membership interest in Enterprise Texas unto Enterprise Holding
III, its successors and assigns, together with all and singular the rights and appurtenances
thereto in anywise belonging, subject, however, to the terms and conditions stated in this
Agreement, forever.

     (2) a 65% limited partner interest in Enterprise GC; and

     TO HAVE AND TO HOLD the 65% limited partner interest in Enterprise GC unto Enterprise Holding
III, its successors and assigns, together with all and singular the rights and appurtenances
thereto in anywise belonging, subject, however, to the terms and conditions stated in this
Agreement, forever.

     (2) a 50% limited partner interest in Enterprise Intrastate.

     TO HAVE AND TO HOLD the 50% limited partner interest in Enterprise Intrastate unto Enterprise
Holding III, its successors and assigns, together with all and singular the rights and
appurtenances thereto in anywise belonging, subject, however, to the terms and conditions stated in
this Agreement, forever.

     2.2 Conversions of Existing Interests. Each of Enterprise Holding III and Enterprise GTM as
members and partners hereby acknowledge, approve and consent to the foregoing assignments and to
the conversion of the existing membership interests of Enterprise Texas and general and limited
partner interests in Enterprise GC and Enterprise Intrastate, effective at the Closing, into the
Subject Interests and other equity interests, in each case as set forth in the Amended and Restated
Agreements.

     2.3 Contribution by Enterprise GTM to DEP of the Enterprise Holding III Member Interests.
Enterprise GTM hereby grants, contributes, transfers, assigns and conveys to DEP, its successors
and assigns, for its and their own use forever, the Enterprise Holding III Member Interests, and
DEP hereby accepts the distribution of the Enterprise Holding III Member Interests from Enterprise GTM and the
Distribution Obligation (as set forth in Section 1.2(f) of the Purchase and Sale Agreement,
as assignee for its own account as an additional capital contribution in exchange for (i)
$280,500,000 ($280,000,000 plus the Offering Proceeds, as the Cash Consideration) and (ii)
37,333,887 Class B Units (the Unit Consideration)).

     TO HAVE AND TO HOLD the Enterprise Holding III Member Interests unto DEP, its successors and
assigns, together with all and singular the rights and appurtenances thereto in anywise belonging,
subject, however, to the terms and conditions stated in this Agreement, forever.

     2.4 DEP Cash Distribution to Enterprise GTM. The Parties acknowledge the distribution by DEP of
$280,500,000 ($280,000,000 plus the Offering Proceeds, as the Cash Consideration), and the receipt
by Enterprise GTM of such cash amount from DEP.

     2.5 DEP Issuance of Class B Units to Enterprise GTM. The Parties acknowledge the issuance by DEP
of 37,333,887 Class B Units, and the receipt by Enterprise GTM of such Class B Units from DEP.

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     2.6 Conveyance and Contribution by DEP (including 0.001% on behalf of OLP GP) to OLP of the
Enterprise Holding III Member Interests. DEP hereby grants, contributes, transfers, assigns and
conveys to OLP (including 0.001% on behalf of OLP GP), its successors and assigns, for its and
their own use forever, all of its rights, title and interest in and to the Enterprise Holding III
Member Interests and OLP hereby accepts the Enterprise Holding III Member Interests as a capital
contribution from each of DEP and OLP GP.

     TO HAVE AND TO HOLD the Enterprise Holding III Member Interests unto OLP, its successors and
assigns, together with all and singular the rights and appurtenances thereto in anywise belonging,
subject, however, to the terms and conditions stated in this Agreement, forever.

     2.7 Amended and Restated Limited Liability Company Agreement of Enterprise Texas. Enterprise GTM,
OLP and Enterprise Holding III shall enter into an Amended and Restated Limited Liability Company
Agreement of Enterprise Texas in the form set forth as Exhibit A hereto to (i) admit OLP as
a member of Enterprise Texas and (ii) reflect the assignment by Enterprise GTM of the Class A
membership interests.

     2.8 Amended and Restated Agreement of Limited Partnership of Enterprise Intrastate. Enterprise
GTM, OLP and Enterprise Holding III shall enter into a Second Amended and Restated Agreement of
Limited Partnership of Enterprise Intrastate in the form set forth as Exhibit B hereto to
(i) admit OLP as a limited partner of Enterprise Intrastate, and (ii) reflect the assignment by
Enterprise GTM of the limited partner interests of Enterprise Intrastate to Enterprise Holding III
and the conversion of such limited partner interest into the general partner interest .

     2.9 Amended and Restated Agreement of Limited Partnership of Enterprise GC. Enterprise GTM, OLP
and Enterprise Holding III shall enter into a Third Amended and Restated Agreement of Limited
Partnership of Enterprise GC in the form set forth as Exhibit C hereto to (i) admit OLP as
a limited partner of Enterprise GC, and (ii) reflect the assignment by
Enterprise GTM of the limited partner interest of Enterprise GC to Enterprise Holding III and
the conversion of such limited partner interests into the general partner interest.

     2.10 Amended and Restated Omnibus Agreement. EPO, OLP and each of Enterprise Texas, Enterprise
Intrastate and Enterprise GC shall enter into an Amended and Restated Omnibus Agreement, to add
provisions regarding (i) guarantees by EPO of the obligations of Enterprise Holding III with
respect to mandatory capital contributions to Enterprise Texas, and (ii) additional indemnity
obligations of EPO to DEP.

ARTICLE III

FURTHER ASSURANCES

     3.1 Further Assurances. From time to time after the date hereof, and without any further
consideration, the Parties agree to execute, acknowledge and deliver all such additional deeds,
assignments, bills of sale, conveyances, instruments, notices, releases, acquittances and other
documents, and will do all such other acts and things, all in accordance with applicable Law, as
may be necessary or appropriate (a) more fully to assure that the applicable Parties own

-6-

 

all of the
properties, rights, titles, interests, estates, remedies, powers and privileges granted by this
Agreement, or which are intended to be so granted, (b) more fully and effectively to vest in the
applicable Parties and their respective successors and assigns beneficial and record title to the
interests contributed and assigned by this Agreement or intended so to be and (c) to more fully and
effectively carry out the purposes and intent of this Agreement.

     3.2 Other Assurances. From time to time after the date hereof, and without any further
consideration, each of the Parties shall execute, acknowledge and deliver all such additional
instruments, notices and other documents, and will do all such other acts and things, all in
accordance with applicable Law, as may be necessary or appropriate to more fully and effectively
carry out the purposes and intent of this Agreement. It is the express intent of the Parties that
DEP or its subsidiaries own the Subject Interests that are identified in this Agreement.

ARTICLE IV

MISCELLANEOUS

     4.1 Order of Completion of Transactions. The transactions provided for in Article II of this
Agreement shall be completed on the Effective Date in the order set forth therein.

     4.2 Headings; References; Interpretation. All Article and Section headings in this Agreement are
for convenience only and shall not be deemed to control or affect the meaning or construction of
any of the provisions hereof. The words “hereof,” “herein” and “hereunder” and words of similar
import, when used in this
Agreement, shall refer to this Agreement as a whole and not to any particular provision of
this Agreement. All references herein to Articles and Sections shall, unless the context requires
a different construction, be deemed to be references to the Articles and Sections of this
Agreement, respectively. All personal pronouns used in this Agreement, whether used in the
masculine, feminine or neuter gender, shall include all other genders, and the singular shall
include the plural and vice versa. The use herein of the word “including” following any general
statement, term or matter shall not be construed to limit such statement, term or matter to the
specific items or matters set forth immediately following such word or to similar items or matters,
whether or not non-limiting language (such as “without limitation,” “but not limited to,” or words
of similar import) is used with reference thereto, but rather shall be deemed to refer to all other
items or matters that could reasonably fall within the broadest possible scope of such general
statement, term or matter.

     4.3 Successors and Assigns. The Agreement shall be binding upon and inure to the benefit of the
Parties signatory hereto and their respective successors and assigns.

     4.4 No Third Party Rights. Except as provided herein, nothing in this Agreement is intended to or
shall confer upon any person other than the Parties, and their respective successors and permitted
assigns, any rights, benefits, or remedies of any nature whatsoever under or by reason of this
Agreement and no person is or is intended to be a third party beneficiary of any of the provisions
of this Agreement.

-7-

 

     4.5 Counterparts. This Agreement may be executed in any number of counterparts, all of which
together shall constitute one agreement binding on the parties hereto.

     4.6 Governing Law. This Agreement shall be governed by, and construed in accordance with, the
Laws of the State of Texas applicable to contracts made and to be performed wholly within such
state without giving effect to conflict of law principles thereof, except to the extent that it is
mandatory that the Law of some other jurisdiction, wherein the interests are located, shall apply.

     4.7 Assignment of Agreement. Neither this Agreement nor any of the rights, interests, or
obligations hereunder may be assigned by any Party without the prior written consent of each of the
Parties.

     4.8 Amendment or Modification. This Agreement may be amended or modified from time to time only
by the written agreement of all the Parties hereto and affected thereby.

     4.9 Director and Officer Liability. Except to the extent that they are a party hereto, the
directors, managers, officers, partners and securityholders of the Parties and their respective
affiliates shall not have any personal liability or obligation arising under this Agreement
(including any claims that another party may assert).

     4.10 Severability. If any term or other provision of this Agreement is invalid, illegal, or
incapable of being enforced under applicable Law or public policy, all other conditions and
provisions of this Agreement shall nevertheless remain in full force and effect so long as the
economic or legal substance of the transactions contemplated herein are not affected in any manner
adverse to any Party. Upon such determination that any term or other provision of this Agreement
is invalid, illegal, or incapable of being enforced, the Parties shall negotiate in good faith to
modify this Agreement so as to effect the original intent of the Parties as closely as possible in
a mutually acceptable manner in order that the transactions contemplated herein are consummated as
originally contemplated to the fullest extent possible.

     4.11 Integration. This Agreement and the instruments referenced herein supersede any and all
previous understandings or agreements among the Parties, whether oral or written, with respect to
their subject matter. This Agreement and such instruments contain the entire understanding of the
Parties with respect to the subject matter hereof and thereof. No understanding, representation,
promise or agreement, whether oral or written, is intended to be or shall be included in or form
part of this Agreement or any such instrument unless it is contained in a written amendment hereto
or thereto and executed by the Parties hereto or thereto after the date of this Agreement or such
instrument.

[The Remainder of this Page is Intentionally Blank]

-8-

 

     IN WITNESS WHEREOF, this Agreement has been duly executed by the parties hereto as of the date
first above written.

	 	 	 	 	 
	 	DEP HOLDINGS, LLC

 	 
	 	By:  	/s/ Richard H. Bachmann 	 
	 	 	Richard H. Bachmann 	 
	 	 	President and Chief Executive Officer 	 
	 

	 	 	 	 	 
	 	DUNCAN ENERGY PARTNERS L.P.

By: DEP HOLDINGS, LLC, its General Partner

 	 
	 	By:  	/s/ Richard H. Bachmann 	 
	 	 	Richard H. Bachmann 	 
	 	 	President and Chief Executive Officer 	 
	 

	 	 	 	 	 
	 	DEP OPERATING PARTNERSHIP, L.P.

By: DEP OLPGP, LLC, its General Partner

 	 
	 	By:  	/s/ Richard H. Bachmann 	 
	 	 	Richard H. Bachmann 	 
	 	 	President and Chief Executive Officer 	 
	 

	 	 	 	 	 
	 	DEP OLPGP, LLC

 	 
	 	By:  	/s/ Richard H. Bachmann 	 
	 	 	Richard H. Bachmann 	 
	 	 	President and Chief Executive Officer 	 
	 

Signature Page to Contribution, Conveyance and Assumption Agreement

 

 

	 	 	 	 	 
	 	ENTERPRISE GTM HOLDINGS L.P.

By: Enterprise Products Operating LLC, its General Partner

 	 
	 	By:  	/s/ Michael A. Creel

 	 
	 	 	Michael A. Creel 	 
	 	 	President and Chief Executive Officer 	 
	 

	 	 	 	 	 
	 	ENTERPRISE HOLDING III, L.L.C.

 	 
	 	By:  	/s/ Michael A. Creel 	 
	 	 	Michael A. Creel 	 
	 	 	President and Chief Executive Officer 	 
	 

Signature Page to Contribution, Conveyance and Assumption Agreement

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