Document:

exv10w7

Exhibit 10.7

TERM LOAN AGREEMENT

dated as of

April 18, 2008

among

DUNCAN ENERGY PARTNERS L.P.

The Lenders Party Hereto

WACHOVIA BANK, NATIONAL ASSOCIATION,

as Administrative Agent

SUNTRUST BANK and THE BANK OF NOVA SCOTIA,

as Co-Syndication Agents

MIZUHO CORPORATE BANK, LTD. and THE ROYAL BANK OF SCOTLAND PLC,

as Co-Documentation Agents

 

WACHOVIA CAPITAL MARKETS, LLC,

SUNTRUST ROBINSON HUMPHREY, A DIVISION OF SUNTRUST CAPITAL

MARKETS, INC., and THE BANK OF NOVA SCOTIA,

as Joint Lead Arrangers and Joint Book Runners

5-Year $300,000,000 Senior Unsecured Term Loan Facility

 

 

TABLE OF CONTENTS

	 	 	 	 	 
	ARTICLE I Definitions
	 	 	1	 
	 
	 	 	 	 
	SECTION 1.01. Defined Terms
	 	 	1	 
	SECTION 1.02. Classification of Loans and Borrowings
	 	 	18	 
	SECTION 1.03. Terms Generally
	 	 	19	 
	SECTION 1.04. Accounting Terms; GAAP
	 	 	19	 
	 
	 	 	 	 
	ARTICLE II The Credits
	 	 	19	 
	 
	 	 	 	 
	SECTION 2.01. Commitments
	 	 	19	 
	SECTION 2.02. Loans and Borrowings
	 	 	19	 
	SECTION 2.03. Requests for Borrowings
	 	 	20	 
	SECTION 2.04. Reserved
	 	 	20	 
	SECTION 2.05. Reserved
	 	 	21	 
	SECTION 2.06. Reserved
	 	 	21	 
	SECTION 2.07. Funding of Borrowings
	 	 	21	 
	SECTION 2.08. Interest Elections
	 	 	21	 
	SECTION 2.09. Termination and Reduction of Commitments
	 	 	22	 
	SECTION 2.10. Repayment of Loans; Evidence of Debt
	 	 	23	 
	SECTION 2.11. Prepayment of Loans
	 	 	23	 
	SECTION 2.12. Fees
	 	 	24	 
	SECTION 2.13. Interest
	 	 	24	 
	SECTION 2.14. Alternate Rate of Interest
	 	 	25	 
	SECTION 2.15. Illegality; Increased Costs
	 	 	25	 
	SECTION 2.16. Break Funding Payments
	 	 	26	 
	SECTION 2.17. Taxes
	 	 	27	 
	SECTION 2.18. Payments Generally; Pro Rata Treatment; Sharing of Set-offs
	 	 	28	 
	SECTION 2.19. Mitigation Obligations; Replacement of Lenders
	 	 	29	 
	SECTION 2.20. Separateness
	 	 	30	 
	 
	 	 	 	 
	ARTICLE III Representations and Warranties
	 	 	30	 
	 
	 	 	 	 
	SECTION 3.01. Organization; Powers
	 	 	30	 
	SECTION 3.02. Authorization; Enforceability
	 	 	31	 
	SECTION 3.03. Governmental Approvals; No Conflicts
	 	 	31	 
	SECTION 3.04. Financial Condition; No Material Adverse Change
	 	 	31	 
	SECTION 3.05. Litigation and Environmental Matters
	 	 	31	 
	SECTION 3.06. Compliance with Laws
	 	 	32	 
	SECTION 3.07. Investment and Holding Company Status
	 	 	32	 
	SECTION 3.08. Taxes
	 	 	32	 
	SECTION 3.09. ERISA
	 	 	32	 
	SECTION 3.10. Disclosure
	 	 	32	 
	SECTION 3.11. Subsidiaries
	 	 	34	 
	SECTION 3.12. Margin Securities
	 	 	34	 
	 
	 	 	 	 
	ARTICLE IV Conditions
	 	 	34	 
	 
	 	 	 	 
	SECTION 4.01. Effective Date
	 	 	34	 
	SECTION 4.02. Each Credit Event
	 	 	35	 

i 

 

	 	 	 	 	 
	ARTICLE V Affirmative Covenants
	 	 	35	 
	 
	 	 	 	 
	SECTION 5.01. Financial Statements and Other Information
	 	 	35	 
	SECTION 5.02. Notices of Material Events
	 	 	36	 
	SECTION 5.03. Existence; Conduct of Business
	 	 	36	 
	SECTION 5.04. Maintenance of Properties; Insurance
	 	 	36	 
	SECTION 5.05. Books and Records; Inspection Rights
	 	 	36	 
	SECTION 5.06. Compliance with Laws
	 	 	37	 
	SECTION 5.07. Use of Proceeds
	 	 	37	 
	SECTION 5.08. Environmental Matters
	 	 	37	 
	SECTION 5.09. ERISA Information
	 	 	37	 
	SECTION 5.10. Taxes
	 	 	37	 
	 
	 	 	 	 
	ARTICLE VI Negative Covenants
	 	 	38	 
	 
	 	 	 	 
	SECTION 6.01. Indebtedness
	 	 	38	 
	SECTION 6.02. Liens
	 	 	39	 
	SECTION 6.03. Fundamental Changes
	 	 	39	 
	SECTION 6.04. Investment Restriction
	 	 	39	 
	SECTION 6.05. Restricted Payments
	 	 	40	 
	SECTION 6.06. Restrictive Agreements
	 	 	40	 
	SECTION 6.07. Financial Condition Covenants
	 	 	41	 
	SECTION 6.08. Asset Dispositions
	 	 	42	 
	SECTION 6.09. Affiliate Transactions
	 	 	42	 
	 
	 	 	 	 
	ARTICLE VII Events of Default
	 	 	43	 
	 
	 	 	 	 
	ARTICLE VIII The Administrative Agent
	 	 	46	 
	 
	 	 	 	 
	ARTICLE IX Miscellaneous
	 	 	48	 
	 
	 	 	 	 
	SECTION 9.01. Notices
	 	 	48	 
	SECTION 9.02. Waivers; Amendments
	 	 	49	 
	SECTION 9.03. Expenses; Indemnity; Damage Waiver
	 	 	50	 
	SECTION 9.04. Successors and Assigns
	 	 	51	 
	SECTION 9.05. Survival
	 	 	53	 
	SECTION 9.06. Counterparts; Integration; Effectiveness
	 	 	53	 
	SECTION 9.07. Severability
	 	 	54	 
	SECTION 9.08. Right of Setoff
	 	 	54	 
	SECTION 9.09. Governing Law; Jurisdiction; Consent to Service of Process
	 	 	54	 
	SECTION 9.10. Waiver of Jury Trial
	 	 	55	 
	SECTION 9.11. Headings
	 	 	55	 
	SECTION 9.12. Confidentiality
	 	 	55	 
	SECTION 9.13. Interest Rate Limitation
	 	 	55	 
	SECTION 9.14. Liability of General Partner
	 	 	56	 
	SECTION 9.15. USA Patriot Act Notice
	 	 	56	 

ii

 

SCHEDULES:

Schedule 2.01 — Commitments

Schedule 3.05 — Disclosed Matters

Schedule 3.11 — Subsidiaries

Schedule 6.01 — Existing Indebtedness

Schedule 6.02 — Existing Liens

EXHIBITS:

Exhibit A — Form of Assignment and Acceptance

Exhibit B — Form of Borrowing Request

Exhibit C — Reserved

Exhibit D — Form of Interest Election Request

Exhibit E-1 — Form of Opinion of Stephanie Hildebrandt, in-house counsel for Borrower

Exhibit E-2 — Form of Opinion of Bracewell & Giuliani LLP, Borrower’s Counsel

Exhibit F — Form of Compliance Certificate

Exhibit G — Form of Note

iii

 

     TERM LOAN AGREEMENT dated as of April 18, 2008, among DUNCAN ENERGY PARTNERS L.P., a Delaware
limited partnership; the LENDERS party hereto; WACHOVIA BANK, NATIONAL ASSOCIATION, as
Administrative Agent; SUNTRUST BANK and THE BANK OF NOVA SCOTIA, as Co-Syndication Agents; and
MIZUHO CORPORATE BANK, LTD. and THE ROYAL BANK OF SCOTLAND PLC, as Co-Documentation Agents.

     The parties hereto agree as follows:

ARTICLE I

Definitions

     SECTION 1.01. Defined Terms. As used in this Agreement, the following terms have the
meanings specified below:

     “ABR”, when used in reference to any Loan or Borrowing, refers to a Loan, or Loans, in
the case of a Borrowing, which bear interest at a rate determined by reference to the Alternate
Base Rate.

     “Acquisition” means the acquisition by the Borrower and its Subsidiaries of the
Acquisition Assets pursuant to the Acquisition Documents as described in the Registration
Statement.

     “Acquisition Assets” means (a) fifty-one percent (51%) of the equity interests in each
of Enterprise Texas and Enterprise Intrastate and (b) sixty-six percent (66%) of the equity
interests in Enterprise GC.

     “Acquisition Documents” means to the extent filed with the SEC, all agreements,
assignments, deeds, conveyances, leases, certificates and other documents and instruments now or
hereafter executed and delivered in connection with the Acquisition.

     “Acquisition Subsidiaries” means Enterprise Texas, Enterprise Intrastate and
Enterprise GC.

     “Administrative Agent” means Wachovia Bank, National Association, in its capacity as
administrative agent for the Lenders hereunder.

     “Administrative Questionnaire” means an Administrative Questionnaire in a form
supplied by the Administrative Agent.

     “Affiliate” means, with respect to a specified Person, another Person that directly,
or indirectly through one or more intermediaries, Controls or is Controlled by or is under common
Control with the Person specified.

     “Agreement” means this Term Loan Agreement dated April 18, 2008, among Duncan Energy
Partners L.P., a Delaware limited partnership; the Lenders party hereto; Wachovia Bank, National
Association, as Administrative Agent; SunTrust Bank and The Bank of Nova Scotia, as Co-Syndication
Agents, and Mizuho Corporate Bank, Ltd. and The Royal Bank of Scotland plc, as Co-Documentation
Agents, as amended, extended or otherwise modified from time to time.

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     “Alternate Base Rate” means, for any day, a rate per annum equal to the greater of
(a) the Prime Rate in effect on such day, and (b) the Federal Funds Effective Rate in effect on
such day plus 1/2 of 1%. Any change in the Alternate Base Rate due to a change in the Prime Rate or
the Federal Funds Effective Rate shall be effective from and including the effective date of such
change in the Prime Rate or the Federal Funds Effective Rate, respectively.

     “Applicable Percentage” means, with respect to any Lender, the percentage of the total
Commitments represented by such Lender’s Commitment. If the Commitments have terminated or
expired, the Applicable Percentages shall be determined based upon the Commitments most recently in
effect, giving effect to any assignments.

     “Applicable Rate” means, for any day, with respect to any Eurodollar Loan hereunder:

     (a) Leverage Based. Prior to Moody’s, S&P or Fitch establishing a rating for the
Index Debt, the applicable rate per annum set forth below under the caption “Eurodollar Spread”
based upon the Leverage Ratio as set forth in the most recent compliance certificate received by
the Administrative Agent pursuant to Section 5.01(d):

	 	 	 
	Leverage Ratio	 	Eurodollar Spread
	< 2.75 to 1.00
	 	0.700%
	> 2.75 to 1.00 but < 3.25 to 1.00
	 	0.800%
	> 3.25 to 1.00 but < 3.75 to 1.00
	 	0.900%
	> 3.75 to 1.00 but < 4.25 to 1.00
	 	1.050%
	> 4.25 to 1.00
	 	1.200%

Any increase or decrease in the Applicable Rate resulting from a change in the Leverage Ratio shall
become effective as of the first Business Day immediately following the date a compliance
certificate is delivered pursuant to Section 5.01(d); provided, however, that if a
compliance certificate is not delivered when due in accordance with such Section, a Leverage Ratio
> 4.25 to 1.00 shall apply as of the first Business Day after the date on which such compliance
certificate was required to have been delivered.

     (b) Ratings Based. Upon Moody’s, S&P or Fitch establishing a rating for the Index
Debt (subject to the immediately following paragraph of this clause (b)), the applicable rate per
annum set forth below under the caption “Eurodollar Spread” based upon the ratings by Moody’s, S&P
and/or Fitch, respectively, applicable on such date to the Index Debt:

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	Index Debt Ratings:	 	 
	(Moody’s/S&P/Fitch)	 	Eurodollar Spread
	Category 1   3 Baa1 / BBB+ / BBB+
	 	0.350%
	Category 2   Baa2 / BBB / BBB
	 	0.450%
	Category 3   Baa3 / BBB- / BBB-
	 	0.650%
	Category 4   Ba1 / BB+ / BB+
	 	0.800%
	Category 5   < Ba1 / BB+ / BB+
	 	0.950%

For purposes of the foregoing, (i) if only one of Moody’s, S&P and Fitch shall have in effect a
rating for the Index Debt, or if only two of Moody’s, S&P and Fitch shall have in effect a rating
for the Index Debt, and such ratings fall within the same Category, then the other two rating
agencies, or other rating agency, shall be deemed to have established a rating in the same Category
as such agency or agencies; (ii) if only two of Moody’s, S&P and Fitch shall have in effect a
rating for the Index Debt, and such ratings shall fall within different Categories, the Applicable
Rate shall be based on the higher of the two ratings; (iii) if each of Moody’s, S&P and Fitch shall
have in effect a rating for the Index Debt, and such ratings shall fall within different
Categories, the Applicable Rate shall be based on (x) the majority rating, if two of such ratings
fall within the same Category, or (y) the middle rating, if all three of such ratings fall within
different Categories, (iv) if the ratings established or deemed to have been established by
Moody’s, S&P and/or Fitch for the Index Debt shall be changed (other than as a result of a change
in the rating system of Moody’s, S&P or Fitch), such change shall be effective as of the date on
which it is first announced by the applicable rating agency. Each change in the Applicable Rate
shall apply during the period commencing on the effective date of such change and ending on the
date immediately preceding the effective date of the next such change.

     (c) Ratings Changes or Unavailability. If the rating system of Moody’s, S&P or Fitch
shall change, or if any such rating agency shall cease to be in the business of rating corporate
debt obligations, the Borrower and the Lenders shall negotiate in good faith to amend this
definition to reflect such changed rating system or the unavailability of ratings from such rating
agency and, pending the effectiveness of any such amendment, the Applicable Rate shall be
determined by reference to the rating most recently in effect prior to such change or cessation.

     “Assignment and Acceptance” means an assignment and acceptance entered into by a
Lender and an assignee (with the consent of any party whose consent is required by Section 9.04),
and accepted by the Administrative Agent, substantially in the form of Exhibit A or any other form
approved by the Administrative Agent.

     “Attributable Indebtedness” with respect to any Sale/Leaseback Transaction, means, as
at the time of determination, the present value (discounted at the rate set forth or implicit in
the terms of the lease included in such transaction) of the total obligations of the lessee for
rental payments (other than amounts required to be paid on account of property taxes, maintenance,
repairs, insurance, assessments, utilities, operating and labor costs and other items that do not
constitute payments for property rights) during the remaining term of the lease included in such

3

 

Sale/Leaseback Transaction (including any period for which such lease has been extended). In
the case of any lease that is terminable by the lessee upon the payment of a penalty or other
termination payment, such amount shall be the lesser of the amount determined assuming termination
upon the first date such lease may be terminated (in which case the amount shall also include the
amount of the penalty or termination payment, but no rent shall be considered as required to be
paid under such lease subsequent to the first date upon which it may be so terminated) or the
amount determined assuming no such termination.

     “Board” means the Board of Governors of the Federal Reserve System of the United
States of America.

     “Borrower” means Duncan Energy Partners L.P., a Delaware limited partnership.

     “Borrowing” means Loans of the same Type, made, converted or continued on the same
date and, in the case of Eurodollar Loans, as to which a single Interest Period is in effect.

     “Borrowing Request” means a request by the Borrower for a Borrowing in accordance with
Section 2.03, and being in the form of attached Exhibit B.

     “Business Day” means any day that is not a Saturday, Sunday or other day on which
commercial banks in New York City are authorized or required by law to remain closed;
provided that, when used in connection with a Eurodollar Loan, the term
“Business Day” shall also exclude any day on which banks are not open for dealings in
dollar deposits in the London interbank market.

     “Capital Lease Obligations” of any Person means the obligations of such Person to pay
rent or other amounts under any lease of (or other arrangement conveying the right to use) real or
personal property, or a combination thereof, which obligations are required to be classified and
accounted for as capital leases on a balance sheet of such Person under GAAP, and the amount of
such obligations shall be the capitalized amount thereof determined in accordance with GAAP.

     “CERCLA” means the Comprehensive Environmental, Response, Compensation, and Liability
Act of 1980, as amended.

     “Change in Control” means the occurrence of any of the following events:

     (i) Enterprise Products Partners shall cease to own, directly or indirectly, all of the
membership interests (including all securities which are convertible into membership interests) of
General Partner;

     (ii) Continuing Directors cease for any reason to constitute collectively a majority of the
members of the board of directors of Enterprise Products GP then in office;

     (iii) any Person or related Persons constituting a group (as such term is used in Rule 13d-5
under the Securities Exchange Act of 1934, as amended) obtains direct or indirect beneficial
ownership interest in Enterprise Products GP greater than the direct or indirect beneficial
ownership interests of EPCO and its Affiliates in Enterprise Products GP; or

4

 

     (iv) Enterprise Products Partners and Enterprise Products OLPGP, Inc. shall cease to own,
directly or indirectly, all of the Equity Interests (including all securities which are convertible
into Equity Interests) of Enterprise Products OLLC.

As used herein, “Continuing Director” means any member of the board of directors of
Enterprise Products GP who (x) is a member of such board of directors as of the date hereof, or (y)
was nominated for election or elected to such board of directors with the approval of a majority of
the Continuing Directors who were members of such board at the time of such nomination or election.

     “Change in Law” means (a) the adoption of any law, rule or regulation after the date
of this Agreement, (b) any change in any law, rule or regulation or in the interpretation or
application thereof by any Governmental Authority after the date of this Agreement or (c)
compliance by any Lender (or, for purposes of Section 2.15(b), by any lending office of such Lender
or by such Lender’s holding company, if any) with any request, guideline or directive (whether or
not having the force of law) of any Governmental Authority made or issued after the date of this
Agreement.

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

     “Commercial Operation Date” means the date on which a Material Project is
substantially complete and commercially operable.

     “Commitment” means, with respect to each Lender, the commitment of such Lender to make
Loans hereunder as set forth on Schedule 2.01, or in the Assignment and Acceptance pursuant to
which such Lender shall have assumed its Commitment, as applicable. The aggregate amount of the
Lenders’ Commitments is $300,000,000.

     “Consolidated EBITDA” means for any period, the sum of (a) the consolidated net income
of the Borrower and its consolidated Subsidiaries (excluding Project Finance Subsidiaries) for such
period plus, to the extent deducted in determining consolidated net income for such period, the
aggregate amount of (i) interest expense of the Borrower and its consolidated Subsidiaries
(excluding Project Finance Subsidiaries), determined on a consolidated basis for such period,
excluding interest expense of each non-wholly owned Subsidiary to the extent such interest expense
is not attributable to the Borrower’s direct or indirect ownership interest in such Subsidiary,
unless the Borrower or another Subsidiary has given a Guarantee of the obligations to which such
interest expense relates, in which case all of such interest expense, to the extent not eliminated
in consolidation, shall be included in interest expense and none of such interest expense, except
to the extent eliminated in consolidation, shall be excluded, (ii) income or gross receipts tax (or
franchise tax or margin tax in the nature of an income or gross receipts tax) expense, (iii)
depreciation and amortization expense of the Borrower and its wholly-owned Subsidiaries, (iv)
depreciation and amortization expense of each non-wholly owned Subsidiary multiplied by the
Borrower’s direct or indirect ownership percentage of the Equity Interests in each such Subsidiary,
(v) parent interest associated with Enterprise Products OLLC’s (or its successor’s) limited
partnership and general partnership interest in the Borrower, and (vi) any special earnings or loss
allocation from a non-wholly owned Subsidiary to Enterprise Products OLLC or its Subsidiaries (or
any of their respective successors) for which the Borrower does not have a payment obligation,
minus (b) equity in earnings from unconsolidated subsidiaries of the Borrower, plus
(c) the amount of cash dividends actually received during such period by the

5

 

Borrower or a
Subsidiary (other than a Project Finance Subsidiary) from a Project Finance Subsidiary or
unconsolidated subsidiaries, plus (d) the amount of all payments during such period on
leases of the type referred to in clause (d) of the definition herein of Indebtedness and the
amount of all payments during such period under other off-balance sheet loans and financings of the
type referred to in such clause (d), minus (e) the amount of any cash dividends,
repayments of loans or advances, releases or discharges of guarantees or other obligations or
other transfers of property or returns of capital previously received by the Borrower or a
Subsidiary (other than a Project Finance Subsidiary) from a Project Finance Subsidiary that during
such period were either (x) recovered pursuant to recourse provisions with respect to a Project
Financing at such Project Finance Subsidiary or (y) reinvested by the Borrower or a Subsidiary in
such Project Finance Subsidiary.

     “Consolidated Indebtedness” means the Indebtedness of the Borrower and its
consolidated Subsidiaries (excluding Project Finance Subsidiaries) including, without duplication,
guaranties of funded debt, determined on a consolidated basis as of such date.

     “Consolidated Interest Expense” means for any period, the interest expense of the
Borrower and its consolidated Subsidiaries (excluding Project Finance Subsidiaries), determined on
a consolidated basis for such period, excluding (i) amortization in accordance with GAAP of
transaction costs associated with the issuance of Indebtedness, (ii) interest expense of each
non-wholly owned Subsidiary in an amount equal to the aggregate ownership percentage of such
Subsidiary’s Equity Interests by owners other than the Borrower, unless the Borrower or another
Subsidiary has given a Guarantee of such Indebtedness, in which case all of such interest expense,
to the extent not eliminated in consolidation, shall be included in Consolidated Interest Expense
and none of such interest expense, except to the extent eliminated in consolidation, shall be
excluded, and (iii) any changes in the fair market value of interest rate hedges, determined on a
consolidated basis for such period.

     “Consolidated Net Tangible Assets” means, at any date of determination, the total
amount of assets of the Borrower and its consolidated subsidiaries after deducting therefrom:

     (a) all current liabilities (excluding (A) any current liabilities that by their terms are
extendable or renewable at the option of the obligor thereon to a time more than 12 months after
the time as of which the amount thereof is being computed, and (B) current maturities of long-term
debt); and

     (b) the value (net of any applicable reserves) of all goodwill, trade names, trademarks,
patents and other like intangible assets, all as set forth, or on a pro forma basis would be set
forth, on the consolidated balance sheet of the Borrower and its consolidated subsidiaries for the
Borrower’s most recently completed fiscal quarter, prepared in accordance with GAAP.

     “Consolidated Net Worth” means as to any Person, at any date of determination, the sum
of (i) preferred stock (if any), (ii) an amount equal to (a) the face amount of outstanding Hybrid
Securities not in excess of 15% of Consolidated Total Capitalization times (b) sixty-two
and one-half percent (62.5%), (iii) par value of common stock, (iv) capital in excess of par value
of common stock, (v) partners’ capital or equity, and (vi) retained earnings, less treasury stock
(if any), of such Person, all as determined on a consolidated basis.

6

 

     “Consolidated Total Capitalization” means the sum of (i) Consolidated Indebtedness and
(ii) Borrower’s Consolidated Net Worth.

     “Control” means the possession, directly or indirectly, of the power to direct or
cause the direction of the management or policies of a Person, whether through the ability to
exercise voting power, by contract or otherwise. “Controlling” and “Controlled”
have meanings correlative thereto.

     “Default” means any event or condition which constitutes an Event of Default or which
upon notice, lapse of time or both would, unless cured or waived, become an Event of Default.

     “Disclosed Matters” means the actions, suits and proceedings and the environmental
matters disclosed in Schedule 3.05.

     “Disposition” or “Dispose” means the sale, transfer, license, lease or other
disposition (including any Sale/Leaseback Transaction) of any assets or property by the Borrower or
any Subsidiary (including the Equity Interests of any Subsidiary), including any sale, assignment,
transfer or other disposal, with or without recourse, of any notes or accounts receivable or any
rights and claims associated therewith.

     “dollars” or “$” refers to lawful money of the United States of America.

     “Effective Date” means the date on or prior to July 18, 2008 specified in the notice
referred to in the last sentence of Section 4.01.

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

     “Enterprise GP Holdings” means Enterprise GP Holdings L.P., a publicly traded Delaware
limited partnership that as of the Effective Date owns Enterprise Products GP.

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

     “Enterprise Products GP” means Enterprise Products GP, LLC, a Delaware limited
liability company, which as of the Effective Date is the general partner of Enterprise Products
Partners.

     “Enterprise Products OLLC” means Enterprise Products Operating LLC, a Texas limited
liability company, successor-in-interest to Enterprise Products Operating L.P., a Delaware limited
partnership, which as of the Effective Date is the operating entity of Enterprise Products Partners
and a wholly-owned subsidiary of Enterprise Products Partners.

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

     “Enterprise Texas” means Enterprise Texas Pipeline LLC, a Texas limited liability
company.

     “Environmental Laws” means all laws, rules, regulations, codes, ordinances, orders,
decrees, judgments, injunctions, notices or binding agreements issued, promulgated or entered into
by any Governmental Authority, relating in any way to the environment, preservation or

7

 

reclamation
of natural resources, the management, release or threatened release of any Hazardous Material or to
health and safety matters.

     “Environmental Liability” means any liability, contingent or otherwise (including any
liability for damages, costs of environmental remediation, fines, penalties or indemnities), of the
Borrower or any Subsidiary directly or indirectly resulting from or based upon (a) violation of any
Environmental Law, (b) the generation, use, handling, transportation, storage, treatment or
disposal of any Hazardous Materials, (c) exposure to any Hazardous Materials, (d) the release or
threatened release of any Hazardous Materials into the environment or (e) any contract,
agreement or other consensual arrangement pursuant to which liability is assumed or imposed
with respect to any of the foregoing.

     “EPCO” means EPCO, Inc., a Delaware corporation, which as of the Effective Date is an
Affiliate of Enterprise Products Partners.

     “Equity Interest” means shares of the capital stock, partnership interests, membership
interests in a limited liability company, beneficial interests in a trust or other equity interests
in any Person, or any warrants, options or other rights to acquire such interests.

     “Equity Offering” means the Borrower’s proposed follow-on public equity offering as
described in the Registration Statement.

     “ERISA” means the Employee Retirement Income Security Act of 1974, as amended from
time to time.

     “ERISA Affiliate” means any trade or business (whether or not incorporated) that,
together with the Borrower, is treated as a single employer under Section 414(b) or (c) of the Code
or, solely for purposes of Section 302 of ERISA and Section 412 of the Code, is treated as a single
employer under Section 414 of the Code.

     “ERISA Event” means (a) any “reportable event”, as defined in Section 4043 of ERISA or
the regulations issued thereunder with respect to a Plan (other than an event for which the 30-day
notice period is waived); (b) the existence with respect to any Plan of an “accumulated funding
deficiency” (as defined in Section 412 of the Code or Section 302 of ERISA), whether or not waived;
(c) the filing pursuant to Section 412(d) of the Code or Section 303(d) of ERISA of an application
for a waiver of the minimum funding standard with respect to any Plan; (d) the incurrence by the
Borrower or any of its ERISA Affiliates of any liability under Title IV of ERISA with respect to
the termination of any Plan; (e) the receipt by the Borrower or any ERISA Affiliate from the PBGC
or a plan administrator of any notice relating to an intention to terminate any Plan or Plans or to
appoint a trustee to administer any Plan; (f) the incurrence by the Borrower or any of its ERISA
Affiliates of any liability with respect to the withdrawal or partial withdrawal from any Plan or
Multiemployer Plan; or (g) the receipt by the Borrower or any ERISA Affiliate of any notice, or the
receipt by any Multiemployer Plan from the Borrower or any ERISA Affiliate of any notice,
concerning the imposition of Withdrawal Liability or a determination that a Multiemployer Plan is,
or is expected to be, insolvent or in reorganization, within the meaning of Title IV of ERISA.

     “Eurocurrency Liabilities” has the meaning assigned to that term in Regulation D of
the Board, as in effect from time to time.

8

 

     “Eurodollar”, when used in reference to any Loan or Borrowing, refers to a Loan, or
Loans, in the case of a Borrowing, which bear interest at a rate determined by reference to the
LIBO Rate.

     “Eurodollar Rate Reserve Percentage” of any Lender for any Interest Period for each
Eurodollar Borrowing means the reserve percentage applicable during such Interest Period (or if
more than one such percentage shall be so applicable, the daily average of such percentages for
those days in such Interest Period during which any such percentage shall be so applicable) under
regulations issued from time to time by the Board for determining the maximum reserve
requirement (including, without limitation, any emergency, supplemental or other marginal
reserve requirement) for such Lender with respect to liabilities or assets consisting of or
including Eurocurrency Liabilities having a term equal to such Interest Period.

     “Evangeline” means Evangeline Gas Pipeline Company, L.P. and Evangeline Gas Corp.,
which as of the Effective Date are unconsolidated Affiliates of the Borrower.

     “Event of Default” has the meaning assigned to such term in Article VII.

     “Excluded Taxes” means, with respect to the Administrative Agent, any Lender or any
other recipient of any payment to be made by or on account of any obligation of the Borrower
hereunder, (a) income or franchise taxes imposed on (or measured by) its net income by the United
States of America, by any state thereof or the District of Columbia or by the jurisdiction under
the laws of which such recipient is organized or in which its principal office is located or, in
the case of any Lender, in which its applicable lending office is located, (b) any branch profits
taxes imposed by the United States of America, any state thereof or the District of Columbia or any
similar tax imposed by any other jurisdiction in which the Administrative Agent, such Lender or
such other recipient is located and (c) in the case of a Foreign Lender (other than an assignee
pursuant to a request by the Borrower under Section 2.19(b)), any withholding tax that is imposed
on amounts payable to such Foreign Lender at the time such Foreign Lender becomes a party to this
Agreement (or designates a new lending office) or is attributable to such Foreign Lender’s failure
to comply with Section 2.17(e).

     “Federal Funds Effective Rate” means, for any day, the weighted average of the rates
on overnight Federal funds transactions with members of the Federal Reserve System arranged by
Federal funds brokers, as published on the next succeeding Business Day by the Federal Reserve Bank
of New York, or, if such rate is not so published for any day that is a Business Day, the average
of the quotations for such day for such transactions received by the Administrative Agent from
three Federal funds brokers of recognized standing selected by it.

     “Financial Officer” means the chief financial officer, principal accounting officer,
treasurer or controller of the Borrower.

     “Fitch” means Fitch, Inc.

     “Foreign Lender” means any Lender that is organized under the laws of a jurisdiction
other than the United States of America, any state thereof or the District of Columbia.

     “GAAP” means generally accepted accounting principles in the United States of America.

9

 

     “General Partner” means DEP Holdings, LLC, a Delaware limited liability company, which
as of the Effective Date is the general partner of the Borrower and a wholly-owned Subsidiary of
Enterprise Products OLLC.

     “Governmental Authority” means the government of the United States of America, any
other nation or any political subdivision thereof, whether state or local, and any agency,
authority, instrumentality, regulatory body, court, central bank or other entity exercising
executive, legislative, judicial, taxing, regulatory or administrative powers or functions of or
pertaining to government.

     “Guarantee” of or by any Person (the “guarantor”) means any obligation,
contingent or otherwise, of the guarantor guaranteeing or having the economic effect of
guaranteeing any Indebtedness of any other Person (the “primary obligor”) in any manner,
whether directly or indirectly, and including any obligation of the guarantor, direct or indirect,
(a) to purchase or pay (or advance or supply funds for the purchase or payment of) such
Indebtedness or other obligation or to purchase (or to advance or supply funds for the purchase of)
any security for the payment thereof, (b) to purchase or lease property, securities or services for
the purpose of assuring the owner of such Indebtedness or other obligation of the payment thereof,
(c) to maintain working capital, equity capital or any other financial statement condition or
liquidity of the primary obligor so as to enable the primary obligor to pay such Indebtedness or
other obligation or (d) as an account party in respect of any letter of credit or letter of
guaranty issued to support such Indebtedness or obligation; provided, that the term
Guarantee shall not include endorsements for collection or deposit in the ordinary course of
business.

     “Hazardous Materials” means all explosive or radioactive substances or wastes and all
hazardous or toxic substances, wastes or other pollutants, including petroleum or petroleum
distillates, asbestos or asbestos containing materials, polychlorinated biphenyls, radon gas,
infectious or medical wastes and all other substances or wastes of any nature, in each case
regulated pursuant to any Environmental Law.

     “Hedging Agreement” means a financial instrument or security which is used as a cash
flow or fair value hedge to manage the risk associated with a change in interest rates, foreign
currency exchange rates or commodity prices.

     “Hybrid Securities” means any trust preferred securities, or deferrable interest
subordinated debt with a maturity of at least 20 years, which provides for the optional or
mandatory deferral of interest or distributions, issued by the Borrower, or any business trusts,
limited liability companies, limited partnerships or similar entities (i) substantially all of the
common equity, general partner or similar interests of which are owned (either directly or
indirectly through one or more wholly owned Subsidiaries) at all times by the Borrower or any of
its Subsidiaries, (ii) that have been formed for the purpose of issuing hybrid securities or
deferrable interest subordinated debt, and (iii) substantially all the assets of which consist of
(A) subordinated debt of the Borrower or a Subsidiary of the Borrower, and (B) payments made from
time to time on the subordinated debt.

     “Indebtedness” of any Person means, without duplication, (a) all obligations of such
Person for the repayment of money borrowed which are or should be shown on a balance sheet as debt
in accordance with GAAP, (b) obligations of such Person as lessee under leases which, in accordance
with GAAP, are capital leases, (c) guaranties of such Person of payment or collection

10

 

of any
obligations described in clauses (a) and (b) of other Persons; and (d) all obligations of such
Person under any synthetic lease, tax retention operating lease, off-balance sheet loan or similar
off-balance sheet financing if the obligation under such synthetic lease, tax retention operating
lease, off-balance sheet loan or similar off-balance sheet financing, as the case may be, is
considered indebtedness for borrowed money for tax purposes but is classified as an operating lease
in accordance with GAAP; provided, that (i) clauses (a) and (b) include, in the case of
obligations of the Borrower or any Subsidiary, only such obligations as are or should be shown as
debt or capital lease liabilities on a consolidated balance sheet of the Borrower in accordance
with GAAP, (ii) clause (c) includes, in the case of guaranties granted by the Borrower or any
Subsidiary, only such guaranties of obligations of another Person that are or should be shown as
debt or capital lease liabilities on a consolidated balance sheet of such Person in accordance with
GAAP, and (iii) the liability of any Person as a general partner of a partnership for
Indebtedness of such partnership, if such partnership is not a Subsidiary of such Person, shall not
constitute Indebtedness.

     “Indemnified Taxes” means Taxes other than Excluded Taxes.

     “Index Debt” means senior, unsecured, non-credit enhanced Indebtedness of the
Borrower.

     “Information Memorandum” means the Confidential Information Memorandum dated March
2008 relating to the Borrower and the Transactions.

     “Interest Election Request” means a request by the Borrower to convert or continue a
Borrowing in accordance with Section 2.08, and being in the form of attached Exhibit D.

     “Interest Payment Date” means (a) with respect to any ABR Loan, the last day of each
March, June, September and December, and (b) with respect to any Eurodollar Loan, the last day of
the Interest Period applicable to the Borrowing of which such Loan is a part and, in the case of a
Eurodollar Borrowing with an Interest Period of more than three (3) months’ duration, each day that
occurs an integral multiple of three (3) months after the first day of such Interest Period.

     “Interest Period” means with respect to any Eurodollar Borrowing, the period
commencing on the date of such Borrowing and ending on the numerically corresponding day in the
calendar month that is one, two, three or six months (and, if available to all Lenders, 12 months)
thereafter, as the Borrower may elect; provided, that (i) if any Interest Period
would end on a day other than a Business Day, such Interest Period shall be extended to the next
succeeding Business Day unless such next succeeding Business Day would fall in the next calendar
month, in which case such Interest Period shall end on the next preceding Business Day and (ii) any
Interest Period pertaining to a Eurodollar Borrowing that commences on the last Business Day of a
calendar month (or on a day for which there is no numerically corresponding day in the last
calendar month of such Interest Period) shall end on the last Business Day of the last calendar
month of such Interest Period. For purposes of this definition, the date of a Borrowing initially
shall be the date on which such Borrowing is made, and thereafter shall be the effective date of
the most recent conversion or continuation of such Borrowing.

     “Lenders” means the Persons listed on Schedule 2.01 and any other Person that shall
have become a party hereto pursuant to an Assignment and Acceptance, other than any such Person
that ceases to be a party hereto pursuant to an Assignment and Acceptance.

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     “Leverage Ratio” shall have the meaning given such term in Section 6.07(b).

     “LIBO Rate” means, with respect to any Eurodollar Borrowing for any Interest Period,
(a) the rate per annum appearing at Reuters Reference LIBOR01 page (or on any successor thereto or
substitute therefor provided by Reuters, providing rate quotations comparable to those currently
provided on such page, as determined by the Administrative Agent from time to time for purposes of
providing quotations of interest rates applicable to dollar deposits in the London interbank
market) at approximately 11:00 a.m., London time, two Business Days prior to the commencement of
such Interest Period, as the rate for dollar deposits with a maturity comparable to such Interest
Period; (b) if for any reason the rate specified in clause (a) of this definition does not so
appear at Reuters Reference LIBOR01 page (or any successor thereto or substitute
therefor provided by Reuters), the rate per annum appearing on Bloomberg Financial Markets
Service (or any successor thereto) as the London interbank offered rate for deposits in dollars at
approximately 11:00 a.m., London time, two Business Days prior to the commencement of such Interest
Period for a maturity comparable to such Interest Period; and (c) if the rate specified in clause
(a) of this definition does not so appear at Reuters Reference LIBOR01 page (or any successor
thereto or substitute therefor provided by Reuters) and if no rate specified in clause (b) of this
definition so appears on Bloomberg Financial Markets Service (or any successor thereto), the
average of the interest rates per annum at which dollar deposits of $5,000,000 and for a maturity
comparable to such Interest Period are offered by the respective principal London offices of the
Reference Banks in immediately available funds in the London interbank market at approximately
11:00 a.m., London time, two Business Days prior to the commencement of such Interest Period.

     “Lien” means, with respect to any asset, (a) any mortgage, deed of trust, lien,
pledge, hypothecation, encumbrance, charge or security interest in, on or of such asset, (b) the
interest of a vendor or a lessor under any conditional sale agreement, capital lease or title
retention agreement relating to such asset and (c) in the case of securities, any purchase option,
call or similar right of a third party with respect to such securities. For avoidance of doubt,
operating leases are not “Liens”.

     “Loans” means the loans made by the Lenders to the Borrower pursuant to this
Agreement.

     “Material Adverse Change” means a material adverse change, from that in effect on
December 31, 2007, in the financial condition or results of operations of the Borrower and its
consolidated Subsidiaries taken as a whole, as indicated in the most recent quarterly or annual
financial statements, except as to matters or events occurring on or prior to the date hereof and
disclosed in the Registration Statement; provided, as of the date hereof and through and
until the Acquisition only, “Material Adverse Change” shall also include a material adverse change,
from that in effect on December 31, 2007, in the financial condition or results of operation of the
Acquisition Assets taken as a whole, as indicated in the Registration Statement.

     “Material Adverse Effect” means a material adverse effect on the financial condition
or results of operations of the Borrower and its consolidated Subsidiaries taken as a whole, as
indicated in the most recent quarterly or annual financial statements, except as to matters or
events occurring on or prior to the date hereof and disclosed in the Registration Statement;
provided, as of the date hereof and through and until the Acquisition only, “Material
Adverse

12

 

Effect” shall also include a material adverse effect on the financial condition or results
of operation of the Acquisition Assets taken as a whole, as indicated in the Registration
Statement.

     “Material Indebtedness” means Indebtedness (other than the Loans), of any one or more
of the Borrower and its Subsidiaries (other than Project Finance Subsidiaries) in an aggregate
principal amount exceeding $15,000,000.

     “Material Project” means the construction or expansion of any capital project of the
Borrower or any of its Subsidiaries, the aggregate capital cost of which exceeds $25,000,000.

     “Material Project EBITDA Adjustments” shall mean, with respect to each Material
Project:

     (A) prior to the Commercial Operation Date of a Material Project (but including the fiscal
quarter in which such Commercial Operation Date occurs), a percentage (based on the then-current
completion percentage of such Material Project) of an amount to be approved by the Administrative
Agent as the projected Consolidated EBITDA of Borrower and its Subsidiaries attributable to such
Material Project for the first 12-month period following the scheduled Commercial Operation Date of
such Material Project (such amount to be determined based on customer contracts or tariff-based
customers relating to such Material Project, the creditworthiness of the other parties to such
contracts or such tariff-based customers, and projected revenues from such contracts, tariffs,
capital costs and expenses, scheduled Commercial Operation Date, oil and gas reserve and production
estimates, commodity price assumptions and other factors deemed appropriate by Administrative
Agent), which may, at the Borrower’s option, be added to actual Consolidated EBITDA for the
Borrower and its Subsidiaries for the fiscal quarter in which construction of such Material Project
commences and for each fiscal quarter thereafter until the Commercial Operation Date of such
Material Project (including the fiscal quarter in which such Commercial Operation Date occurs, but
net of any actual Consolidated EBITDA of the Borrower and its Subsidiaries attributable to such
Material Project following such Commercial Operation Date); provided that if the actual
Commercial Operation Date does not occur by the scheduled Commercial Operation Date, then the
foregoing amount shall be reduced, for quarters ending after the scheduled Commercial Operation
Date to (but excluding) the first full quarter after its Commercial Operation Date, by the
following percentage amounts depending on the period of delay (based on the period of actual delay
or then-estimated delay, whichever is longer): (i) 90 days or less, 0%, (ii) longer than 90 days,
but not more than 180 days, 25%, (iii) longer than 180 days but not more than 270 days, 50%, and
(iv) longer than 270 days, 100%; and

     (B) beginning with the first full fiscal quarter following the Commercial Operation Date of a
Material Project and for the two immediately succeeding fiscal quarters, an amount to be approved
by the Administrative Agent as the projected Consolidated EBITDA of Borrower and its Subsidiaries
attributable to such Material Project (determined in the same manner as set forth in clause (A)
above) for the balance of the four full fiscal quarter period following such Commercial Operation
Date, which may, at the Borrower’s option, be added to actual Consolidated EBITDA for the Borrower
and its Subsidiaries for such fiscal quarters.

     Notwithstanding the foregoing:

     (i) no such additions shall be allowed with respect to any Material Project unless:

13

 

     (a) not later than 30 days prior to the delivery of any certificate required by the
terms and provisions of Section 5.01(d) to the extent Material Project EBITDA Adjustments
will be made to Consolidated EBITDA in determining compliance with Section 6.07(b), the
Borrower shall have delivered to the Administrative Agent written pro forma projections of
Consolidated EBITDA of the Borrower and its Subsidiaries attributable to such Material
Project and

     (b) prior to the date such certificate is required to be delivered, the Administrative
Agent shall have approved (such approval not to be unreasonably withheld) such projections
and shall have received such other information and documentation as the Administrative Agent
may reasonably request, all in form and substance satisfactory to the Administrative Agent,
and

     (ii) the aggregate amount of all Material Project EBITDA Adjustments during any period shall
be limited to 15% of the total actual Consolidated EBITDA of the Borrower and its Subsidiaries for
such period (which total actual Consolidated EBITDA shall be determined without including any
Material Project EBITDA Adjustments).

     “Material Subsidiary” means each Subsidiary of the Borrower (and, prior to the
Acquisition, the Acquisition Subsidiaries and their Subsidiaries) that, as of the last day of the
fiscal year of the Borrower most recently ended prior to the relevant determination of Material
Subsidiaries, has a net worth determined in accordance with GAAP that is greater than 10% of the
Consolidated Net Worth of the Borrower (or, prior to the Acquisition, the total Consolidated Net
Worth of the Borrower and the Acquisition Subsidiaries) as of such day.

     “Maturity Date” means the fifth anniversary of the date hereof.

     “Moody’s” means Moody’s Investors Service, Inc.

     “Multiemployer Plan” means a multiemployer plan as defined in Section 4001(a)(3) of
ERISA.

     “Notes” means any promissory notes issued by Borrower pursuant to Section 2.10(e).

     “Other Taxes” means any and all present or future stamp or documentary taxes or any
other excise or property taxes, charges or similar levies arising from any payment made hereunder
or from the execution, delivery or registration of, or otherwise with respect to, this Agreement.

     “Partnership Agreement” means the Amended and Restated Agreement of Limited
Partnership of the Borrower among the General Partner and limited partners substantially in the
form provided to the Lenders, as amended, modified and supplemented from time to time.

     “PBGC” means the Pension Benefit Guaranty Corporation referred to and defined in ERISA
and any successor entity performing similar functions.

     “Permitted Liens” means:

     (a) liens upon rights-of-way for pipeline purposes;

14

 

     (b) any statutory or governmental lien or lien arising by operation of law, or any mechanics’,
repairmen’s, materialmen’s, suppliers’, carriers’, landlords’, warehousemen’s or similar lien
incurred in the ordinary course of business which is not yet due or which is being contested in
good faith by appropriate proceedings and any undetermined lien which is incidental to
construction, development, improvement or repair; or any right reserved to, or vested in, any
municipality or public authority by the terms of any right, power, franchise, grant, license,
permit or by any provision of law, to purchase or recapture or to designate a purchaser of, any
property;

     (c) liens for taxes and assessments which are (i) for the then current year, (ii) not at the
time delinquent, or (iii) delinquent but the validity or amount of which is being contested at the
time by the Borrower or any Subsidiary in good faith by appropriate proceedings;

     (d) liens of, or to secure performance of, leases, other than capital leases, or any lien
securing industrial development, pollution control or similar revenue bonds;

     (e) any lien upon property or assets acquired or sold by the Borrower or any Subsidiary
resulting from the exercise of any rights arising out of defaults on receivables;

     (f) any lien in favor of the Borrower or any wholly-owned Subsidiary;

     (g) any lien in favor of the United States of America or any state thereof, or any department,
agency or instrumentality or political subdivision of the United States of America or any state
thereof, to secure partial, progress, advance, or other payments pursuant to any contract or
statute, or any debt incurred by the Borrower or any Subsidiary for the purpose of financing all or
any part of the purchase price of, or the cost of constructing, developing, repairing or improving,
the property or assets subject to such lien;

     (h) any lien incurred in the ordinary course of business in connection with workmen’s
compensation, unemployment insurance, temporary disability, social security, retiree health or
similar laws or regulations or to secure obligations imposed by statute or governmental
regulations;

     (i) liens in favor of any Person to secure obligations under provisions of any letters of
credit, bank guarantees, bonds or surety obligations required or requested by any governmental
authority in connection with any contract or statute; or any lien upon or deposits of any assets to
secure performance of bids, trade contracts, leases or statutory obligations;

     (j) any lien upon any property or assets created at the time of acquisition of such property
or assets by the Borrower or any Subsidiary or within one year after such time to secure all or a
portion of the purchase price for such property or assets or debt incurred to finance such purchase
price, whether such debt was incurred prior to, at the time of or within one year after the date of
such acquisition; or any lien upon any property or assets to secure all or part of the cost of
construction, development, repair or improvements thereon or to secure debt incurred prior to, at
the time of, or within one year after completion of such construction, development, repair or
improvements or the commencement of full operations thereof (whichever is later), to provide funds
for any such purpose;

     (k) any lien upon any property or assets (i) existing thereon at the time of the acquisition
thereof by the Borrower or any Subsidiary, (ii) existing thereon at the time such

15

 

Person becomes a
Subsidiary by acquisition, merger or otherwise, or (iii) acquired by any Person after the time such
Person becomes a Subsidiary by acquisition, merger or otherwise, to the extent such lien is created
by security documents existing at the time such Person becomes a Subsidiary and not added to such
security documents in contemplation thereof;

     (l) liens imposed by law or order as a result of any proceeding before any court or regulatory
body that is being contested in good faith, and liens which secure a judgment or other
court-ordered award or settlement as to which the Borrower or the applicable Subsidiary has not
exhausted its appellate rights;

     (m) any extension, renewal, refinancing, refunding or replacement (or successive extensions,
renewals, refinancing, refunding or replacements) of liens, in whole or in part, referred to in
clauses (a) through (l) above; provided, however, that any such extension, renewal, refinancing,
refunding or replacement lien shall be limited to the property or assets covered by the lien
extended, renewed, refinanced, refunded or replaced and that the obligations secured by any such
extension, renewal, refinancing, refunding or replacement lien shall be in an amount
not greater than the amount of the obligations secured by the lien extended, renewed,
refinanced, refunded or replaced and any expenses of the Borrower and its Subsidiaries (including
any premium) incurred in connection with such extension, renewal, refinancing, refunding or
replacement;

     (n) any lien resulting from the deposit of moneys or evidence of indebtedness in trust for the
purpose of defeasing debt of the Borrower or any Subsidiary;

     (o) the liens upon the property and assets of Evangeline existing on the Effective Date, and
other liens and encumbrances described in the Registration Statement or in the Borrower’s
registration statement relating to its initial public offering, including any rights of first
refusal, as set forth on Schedule 6.02; or

     (p) other liens incurred in the ordinary course of business securing up to $25,000,000 of
Indebtedness of the Borrower and its Subsidiaries in the aggregate at any time outstanding;
provided, such secured Indebtedness of the Borrower shall not exceed $10,000,000 in the
aggregate at any time outstanding.

     “Permitted Sale/Leaseback Transactions” means any Sale/Leaseback Transaction:

     (a) which occurs within one year from the date of completion of the acquisition of the
property subject thereto or the date of the completion of construction, development or substantial
repair or improvement, or commencement of full operations on such property, whichever is later; or

     (b) involves a lease for a period, including renewals, of not more than three years; or

     (c) the Borrower or any Subsidiary would be entitled to incur Indebtedness, in a principal
amount equal to the Attributable Indebtedness with respect to such Sale/Leaseback Transaction,
secured by a Lien on the property subject to such Sale/Leaseback Transaction pursuant to Section
6.02 without equally and ratably securing the Indebtedness under this Agreement pursuant to such
Section; or

16

 

     (d) the Borrower or any Subsidiary, within a one-year period after such Sale/Leaseback
Transaction, applies or causes to be applied an amount not less than the Attributable Indebtedness
from such Sale/Leaseback Transaction to (a) the prepayment, repayment, redemption, reduction or
retirement of any Indebtedness of the Borrower or any Subsidiary that is not subordinated to the
Indebtedness under this Agreement, or (b) the expenditure or expenditures for Principal Property
used or to be used in the ordinary course of business of the Borrower or its Subsidiaries.

     Notwithstanding the foregoing provisions of this definition, any Sale/Leaseback Transaction not
covered by clauses (a) through (d), inclusive, of this definition, shall nonetheless be a Permitted
Sale/Leaseback Transaction if the Attributable Indebtedness from such Sale/Leaseback Transaction,
together with the aggregate principal amount of outstanding Indebtedness (other than Indebtedness
under this Agreement) secured by Liens other than Permitted Liens, does not exceed 10% of
Consolidated Net Tangible Assets.

     “Person” means any natural person, corporation, limited liability company, trust,
joint venture, association, company, partnership, Governmental Authority or other entity.

     “Plan” means any employee pension benefit plan (other than a Multiemployer Plan)
subject to the provisions of Title IV of ERISA or Section 412 of the Code or Section 302 of ERISA,
and in respect of which the Borrower or any ERISA Affiliate is (or, if such plan were terminated,
would under Section 4069 of ERISA be deemed to be) an “employer” as defined in Section 3(5) of
ERISA.

     “Prime Rate” means the rate of interest per annum publicly announced from time to time
by Wachovia Bank, National Association as its prime rate in effect at its principal office in
Charlotte, North Carolina. Each change in the Prime Rate shall be effective from and including the
date such change is publicly announced as being effective.

     “Project Financing” means Indebtedness incurred by a Project Finance Subsidiary to
finance the acquisition or construction of any asset or project which Indebtedness does not permit
or provide for recourse against the Borrower or any of its Subsidiaries (other than any Project
Finance Subsidiary) and other than recourse that consists of rights to recover dividends paid by
such Project Finance Subsidiary.

     “Project Finance Subsidiaries” means a Subsidiary that is (A) created principally to
(i) construct or acquire any asset or project that will be or is financed solely with Project
Financing for such asset or project, related equity investments and any loans to, or capital
contributions in, such Subsidiary that are not prohibited hereby, (ii) own an Equity Interest in a
Project Finance Subsidiary, and/or (iii) own an interest in any such asset or project and (B)
designated as a Project Finance Subsidiary by the Borrower in writing to Administrative Agent.

     “Reference Banks” means Wachovia Bank, National Association, JPMorgan Chase Bank and
Citibank, N.A.

     “Register” has the meaning set forth in Section 9.04(c).

     “Registration Statement” means the Borrower’s Form S-3 Registration Statement filed
March 6, 2008 with the SEC, as amended through the date hereof.

17

 

     “Related Parties” means, with respect to any specified Person, such Person’s
Affiliates and the respective directors, officers, employees, agents and advisors of such Person
and such Person’s Affiliates.

     “Required Lenders” means, at any time, Lenders having Loans outstanding (or prior to
the Effective Date, Commitments) representing more than 50% of the sum of the total Loans
outstanding (or prior to the Effective Date, Commitments) at such time.

     “Restricted Payment” means any dividend or other distribution (whether in cash,
securities or other property) with respect to any class of Equity Interests of the Borrower, or any
payment (whether in cash, securities or other property), including any sinking fund or similar
deposit, on account of the purchase, redemption, retirement, acquisition, cancellation or
termination of any Equity Interests of the Borrower or any option, warrant or other right to
acquire any Equity Interests of the Borrower.

     “Sale/Leaseback Transaction” means any arrangement with any Person providing for the
leasing, under a lease that is not a capital lease under GAAP, by the Borrower or a Subsidiary
(other than a Project Finance Subsidiary) of any Principal Property, which property has been or
is to be sold or transferred by the Borrower or such Subsidiary to such Person in
contemplation of such leasing.

     “S&P” means Standard & Poor’s Ratings Services, a division of McGraw Hill Companies,
Inc.

     “SEC” has the meaning set forth in Section 5.01(a).

     “Subsidiary” means, with respect to any Person (the “parent”) at any date, any
corporation, limited liability company, partnership, association or other entity of which
securities or other ownership interests representing more than 50% of the equity or more than 50%
of the ordinary voting power or, in the case of a partnership, more than 50% of the general
partnership interests, are, as of such date, owned, controlled or held by the parent and one or
more subsidiaries of the parent.

     “Taxes” means any and all present or future taxes, levies, imposts, duties,
deductions, charges or withholdings imposed by any Governmental Authority.

     “Transactions” means the execution, delivery and performance by the Borrower of this
Agreement, the borrowing of Loans and the use of the proceeds thereof.

     “Type”, when used in reference to any Loan or Borrowing, refers to whether the rate of
interest on such Loan, or on the Loans comprising such Borrowing, is determined by reference to the
LIBO Rate or the Alternate Base Rate.

     “Withdrawal Liability” means liability to a Multiemployer Plan as a result of a
complete or partial withdrawal from such Multiemployer Plan, as such terms are defined in Part I of
Subtitle E of Title IV of ERISA.

     SECTION 1.02. Classification of Loans and Borrowings. For purposes of this
Agreement, Loans may be classified and referred to by Type (e.g., a “Eurodollar Loan”).
Borrowings also may be classified and referred to by Type (e.g., a “Eurodollar Borrowing”).

18

 

     SECTION 1.03. Terms Generally. The definitions of terms herein shall apply equally
to the singular and plural forms of the terms defined. Whenever the context may require, any
pronoun shall include the corresponding masculine, feminine and neuter forms. The words “include”,
“includes” and “including” shall be deemed to be followed by the phrase “without limitation”. The
word “will” shall be construed to have the same meaning and effect as the word “shall”. Unless the
context requires otherwise (a) any definition of or reference to any agreement, instrument or other
document herein shall be construed as referring to such agreement, instrument or other document as
from time to time amended, supplemented or otherwise modified (subject to any restrictions on such
amendments, supplements or modifications set forth herein), (b) any reference herein to any Person
shall be construed to include such Person’s successors and assigns, (c) the words “herein”,
“hereof” and “hereunder”, and words of similar import, shall be construed to refer to this
Agreement in its entirety and not to any particular provision hereof, (d) all references herein to
Articles, Sections, Exhibits and Schedules shall be construed to refer to Articles and Sections of,
and Exhibits and Schedules to, this Agreement and (e) the words “asset” and “property” shall be
construed to have
the same meaning and effect and to refer to any and all tangible and intangible assets and
properties, including cash, securities, accounts and contract rights.

     SECTION 1.04. Accounting Terms; GAAP. Except as otherwise expressly provided herein,
all terms of an accounting or financial nature shall be construed in accordance with (i) except for
purposes of Section 6.07, GAAP, as in effect from time to time; provided that, if
the Borrower notifies the Administrative Agent that the Borrower requests an amendment to any
provision hereof to eliminate the effect of any change occurring after the date hereof in GAAP or
in the application thereof on the operation of such provision (or if the Administrative Agent
notifies the Borrower that the Required Lenders request an amendment to any provision hereof for
such purpose), regardless of whether any such notice is given before or after such change in GAAP
or in the application thereof, then such provision shall be interpreted on the basis of GAAP as in
effect and applied immediately before such change shall have become effective until such notice
shall have been withdrawn or such provision amended in accordance herewith; and (ii) for purposes
of Section 6.07, GAAP, as in effect on December 31, 2007.

ARTICLE II

The Credits

     SECTION 2.01. Commitments. Subject to the terms and conditions set forth herein,
each Lender agrees to make Loans to the Borrower on the Effective Date in the amount of such
Lender’s Commitment on such date. The Borrower may not borrow, prepay and reborrow Loans.

     SECTION 2.02. Loans and Borrowings. (a)  Each Loan shall be made as part of a
Borrowing consisting of Loans made by the Lenders ratably in accordance with their respective
Commitments. The failure of any Lender to make any Loan required to be made by it shall not
relieve any other Lender of its obligations hereunder; provided that the
Commitments of the Lenders are several and no Lender shall be responsible for any other Lender’s
failure to make Loans as required.

     (b) Subject to Section 2.14, each Borrowing shall be comprised entirely of ABR Loans or
Eurodollar Loans as the Borrower may request in accordance herewith. Each Lender at

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its option may
make any Eurodollar Loan by causing any domestic or foreign branch or Affiliate of such Lender to
make such Loan; provided that any exercise of such option shall not affect the
obligation of the Borrower to repay such Loan in accordance with the terms of this Agreement.

     (c) At the commencement of each Interest Period for any Eurodollar Borrowing, such Borrowing
shall be in an aggregate amount that is an integral multiple of $1,000,000 and not less than
$5,000,000. At the time that each ABR Borrowing is made, such Borrowing shall be in an aggregate
amount that is an integral multiple of $500,000 and not less than $1,000,000; provided
that an ABR Borrowing may be in an aggregate amount that is equal to the entire unused
balance of the total Commitments. Borrowings of more than one Type may be outstanding at the same
time; provided that there shall not at any time be more than a total of eight
Eurodollar Borrowings outstanding.

     (d) Notwithstanding any other provision of this Agreement, the Borrower shall not be entitled
to request, or to elect to convert or continue, any Borrowing if the Interest Period requested with
respect thereto would end after the Maturity Date.

     SECTION 2.03. Requests for Borrowings. To request a Borrowing, the Borrower shall
notify the Administrative Agent of such request by telephone (a) in the case of a Eurodollar
Borrowing, not later than 11:00 a.m., New York City time, three Business Days before the date of
the proposed Borrowing or (b) in the case of an ABR Borrowing, not later than 11:00 a.m., New
York City time, on the date of the proposed Borrowing. Each such telephonic Borrowing Request
shall be irrevocable and shall be confirmed promptly by hand delivery or telecopy to the
Administrative Agent of a written Borrowing Request signed by the Borrower. Each such telephonic
and written Borrowing Request shall specify the following information in compliance with
Section 2.02:

     (i) the aggregate amount of the requested Borrowing;

     (ii) the date of such Borrowing, which shall be a Business Day;

     (iii) whether such Borrowing is to be an ABR Borrowing or a Eurodollar Borrowing;

     (iv) in the case of a Eurodollar Borrowing, the initial Interest Period to be
applicable thereto, which shall be a period contemplated by the definition of the term
“Interest Period”; and

     (v) the location and number of the Borrower’s account to which funds are to be
disbursed, which shall comply with the requirements of Section 2.07.

If no election as to the Type of Borrowing is specified, then the requested Borrowing shall be an
ABR Borrowing. If no Interest Period is specified with respect to any requested Eurodollar
Borrowing, then the Borrower shall be deemed to have selected an Interest Period of one month’s
duration. Promptly following receipt of a Borrowing Request in accordance with this Section, the
Administrative Agent shall advise each Lender of the details thereof and of the amount of such
Lender’s Loan to be made as part of the requested Borrowing.

     SECTION 2.04. Reserved.

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     SECTION 2.05. Reserved.

     SECTION 2.06. Reserved.

     SECTION 2.07. Funding of Borrowings. (a) Each Lender shall make its Loan to be made
by it hereunder on the Effective Date by wire transfer of immediately available funds by 1:00 p.m.,
New York City time, to the account of the Administrative Agent most recently designated by it for
such purpose by notice to the Lenders. The Administrative Agent will make such Loans available to
the Borrower by promptly crediting the amounts so received, in like funds, to an account
designated by the Borrower in the applicable Borrowing Request.

     (b) Unless the Administrative Agent shall have received notice from a Lender prior to the
proposed date of the Borrowing that such Lender will not make available to the Administrative Agent
such Lender’s share of such Borrowing, the Administrative Agent may assume that such Lender has
made such share available on such date in accordance with paragraph (a) of this Section and may, in
reliance upon such assumption, make available to the Borrower a corresponding amount. In such
event, if a Lender has not in fact made its share of the applicable Borrowing available to the
Administrative Agent, then the applicable Lender and the Borrower severally agree to pay to the
Administrative Agent forthwith on demand such corresponding amount with interest thereon, for each
day from and including the date such amount is made available to the Borrower to but excluding the
date of payment to the Administrative Agent, at (i) in the case of such Lender, the greater of the
Federal Funds Effective Rate and a rate determined by the Administrative Agent in accordance with
banking industry rules on interbank compensation or (ii) in the case of the Borrower, the interest
rate applicable to such Borrowing. If such Lender pays such amount to the Administrative Agent,
then such amount shall constitute such Lender’s Loan included in such Borrowing.

     SECTION 2.08. Interest Elections. (a) Each Borrowing initially shall be of the Type
specified in the applicable Borrowing Request and, in the case of a Eurodollar Borrowing, shall
have an initial Interest Period as specified in such Borrowing Request. Thereafter, the Borrower
may elect to convert such Borrowing to a different Type or to continue such Borrowing and, in the
case of a Eurodollar Borrowing, may elect Interest Periods therefor, all as provided in this
Section. The Borrower may elect different options with respect to different portions of the
affected Borrowing, in which case each such portion shall be allocated ratably among the Lenders
holding the Loans comprising such Borrowing, and the Loans comprising each such portion shall be
considered a separate Borrowing.

     (b) To make an election pursuant to this Section, the Borrower shall notify the Administrative
Agent of such election by telephone by the time that a Borrowing Request would be required under
Section 2.03 if the Borrower were requesting a Borrowing of the Type resulting from such election
to be made on the effective date of such election. Each such telephonic Interest Election Request
shall be irrevocable and shall be confirmed promptly by hand delivery or telecopy to the
Administrative Agent of a written Interest Election Request signed by the Borrower.

     (c) Each telephonic and written Interest Election Request shall specify the following
information in compliance with Section 2.02:

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     (i) the Borrowing to which such Interest Election Request applies and, if different
options are being elected with respect to different portions thereof, the portions thereof
to be allocated to each resulting Borrowing (in which case the information to be specified
pursuant to clauses (iii) and (iv) below shall be specified for each resulting Borrowing);

     (ii) the effective date of the election made pursuant to such Interest Election
Request, which shall be a Business Day;

     (iii) whether the resulting Borrowing is to be an ABR Borrowing or a Eurodollar
Borrowing; and

     (iv) if the resulting Borrowing is a Eurodollar Borrowing, the Interest Period to be
applicable thereto after giving effect to such election, which shall be a period
contemplated by the definition of the term “Interest Period”.

If any such Interest Election Request requests a Eurodollar Borrowing but does not specify an
Interest Period, then the Borrower shall be deemed to have selected an Interest Period of one
month’s duration, in the case of a Eurodollar Borrowing.

     (d) Promptly following receipt of an Interest Election Request, the Administrative Agent shall
advise each Lender of the details thereof and of such Lender’s portion of each resulting Borrowing.

     (e) If the Borrower fails to deliver a timely Interest Election Request with respect to a
Eurodollar Borrowing prior to the end of the Interest Period applicable thereto, then, unless such
Borrowing is repaid as provided herein, at the end of such Interest Period such Borrowing shall be
converted to an ABR Borrowing. Notwithstanding any contrary provision hereof, if an Event of
Default has occurred and is continuing and the Administrative Agent, at the request of the Required
Lenders, so notifies the Borrower, then, so long as an Event of Default is continuing (i) no
outstanding Borrowing may be converted to or continued as a Eurodollar Borrowing and (ii) unless
repaid, each Eurodollar Borrowing shall be converted to an ABR Borrowing at the end of the Interest
Period applicable thereto.

     SECTION 2.09. Termination and Reduction of Commitments. (a) Unless previously
terminated, the Commitments shall terminate on July 18, 2008, if the Effective Date shall not have
occurred on or prior to such date.

     (b) The Borrower may at any time prior to the Effective Date terminate, or from time to time
reduce, the Commitments; provided that each reduction of the Commitments shall be
in an amount that is an integral multiple of $5,000,000.

     (c) The Borrower shall notify the Administrative Agent of any election to terminate or reduce
the Commitments under paragraph (b) of this Section at least three Business Days prior to the
effective date of such termination or reduction, specifying such election and the effective date
thereof. Promptly following receipt of any notice, the Administrative Agent shall advise the
Lenders of the contents thereof. Each notice delivered by the Borrower pursuant to this Section
shall be irrevocable. Any termination or reduction of the Commitments shall be permanent.

22

 

Each
reduction of the Commitments shall be made ratably among the Lenders in accordance with their
respective Commitments.

     SECTION 2.10. Repayment of Loans; Evidence of Debt. (a) The Borrower hereby
unconditionally promises to pay to the Administrative Agent for the account of each Lender the then
unpaid principal amount of each Loan on the Maturity Date.

     (b) Each Lender shall maintain in accordance with its usual practice an account or accounts
evidencing the indebtedness of the Borrower to such Lender resulting from each Loan
made by such Lender, including the amounts of principal and interest payable and paid to such
Lender from time to time hereunder.

     (c) The Administrative Agent shall maintain accounts in which it shall record (i) the amount
of each Loan made hereunder, the Type thereof and the Interest Period applicable thereto, (ii) the
amount of any principal or interest due and payable or to become due and payable from the Borrower
to each Lender hereunder and (iii) the amount of any sum received by the Administrative Agent
hereunder for the account of the Lenders and each Lender’s share thereof.

     (d) The entries made in the accounts maintained pursuant to paragraph (b) or (c) of this
Section shall be prima facie evidence of the existence and amounts of the
obligations recorded therein; provided that the failure of any Lender or the
Administrative Agent to maintain such accounts or any error therein shall not in any manner affect
the obligation of the Borrower to repay the Loans in accordance with the terms of this Agreement.

     (e) Any Lender may request that Loans made by it be evidenced by a promissory note. In such
event, the Borrower shall prepare, execute and deliver to such Lender a promissory note payable to
the order of such Lender (or, if requested by such Lender, to such Lender and its registered
assigns) and substantially in the form of note attached hereto as Exhibit G. Thereafter, the Loans
evidenced by such promissory note and interest thereon shall at all times (including after
assignment pursuant to Section 9.04) be represented by one or more promissory notes in such form
payable to the order of the payee named therein (or, if such promissory note is a registered note,
to such payee and its registered assigns).

     SECTION 2.11. Prepayment of Loans. (a)  The Borrower shall have the right at any
time and from time to time to prepay any Borrowing in whole or in part, subject to prior notice in
accordance with paragraph (b) of this Section.

     (b) The Borrower shall notify the Administrative Agent by telephone (confirmed by telecopy)
of any prepayment hereunder in the case of prepayment of a Eurodollar Borrowing or ABR Borrowing,
not later than 11:00 a.m., New York City time, on the date of prepayment. Each such notice shall
be irrevocable and shall specify the prepayment date and the principal amount of each Borrowing or
portion thereof to be prepaid. Promptly following receipt of any such notice relating to a
Borrowing, the Administrative Agent shall advise the Lenders of the contents thereof. Each partial
prepayment of any Borrowing shall be in an amount that is an integral multiple of $1,000,000 and
not less than $1,000,000 in the case of an ABR Borrowing, or $3,000,000 in the case of a Eurodollar
Borrowing. Each prepayment of a Borrowing shall be applied ratably to the Loans included in the
prepaid Borrowing. Prepayments shall be accompanied by accrued interest to the extent required by
Section 2.13.

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     SECTION 2.12. Fees. (a) The Borrower agrees to pay to the Administrative Agent, for
its own account, fees payable in the amounts and at the times separately agreed upon between the
Borrower and the Administrative Agent.

     (b) All fees payable hereunder shall be paid on the dates due, in immediately available funds,
to the Administrative Agent. Fees paid shall not be refundable under any circumstances.

     SECTION 2.13. Interest. (a) The Loans comprising each ABR Borrowing shall bear
interest on each day at the Alternate Base Rate for such day.

     (b) The Loans comprising each Eurodollar Borrowing shall bear interest at the LIBO Rate for
the Interest Period in effect for such Borrowing plus the Applicable Rate.

     (c) Notwithstanding the foregoing, if any principal of or interest on any Loan or any fee or
other amount payable by the Borrower hereunder is not paid when due, whether at stated maturity,
upon acceleration or otherwise, such overdue amount shall bear interest, after as well as before
judgment, at a rate per annum equal to (i) in the case of overdue principal of any Loan, 2% plus
the rate otherwise applicable to such Loan as provided in the preceding paragraphs of this Section
or (ii) in the case of any other amount, 2% plus the rate applicable to ABR Loans as provided in
paragraph (a) of this Section.

     (d) Accrued interest on each Loan shall be payable in arrears on each Interest Payment Date
for such Loan; provided that (i) interest accrued pursuant to paragraph (c) of this
Section shall be payable on demand, (ii) in the event of any repayment or prepayment of any Loan,
accrued interest on the principal amount repaid or prepaid shall be payable on the date of such
repayment or prepayment and (iii) in the event of any conversion of any Eurodollar Loan prior to
the end of the current Interest Period therefor, accrued interest on such Loan shall be payable on
the effective date of such conversion.

     (e) All interest determined by reference to the LIBO Rate or clause (b) of the definition of
Alternate Base Rate shall be computed on the basis of a year of 360 days, and all other interest
shall be computed on the basis of a year of 365 days (or 366 days in a leap year), and in each case
shall be payable for the actual number of days elapsed (including the first day but excluding the
last day). The applicable Alternate Base Rate or LIBO Rate shall be determined by the
Administrative Agent, and such determination shall be conclusive absent manifest error.

     (f) The Borrower shall pay to each Lender, so long as such Lender shall be required under
regulations of the Board to maintain reserves with respect to liabilities or assets consisting of
or including Eurocurrency Liabilities, additional interest on the unpaid principal amount of each
Borrowing of such Lender during such periods as such Borrowing is a Eurodollar Borrowing, from the
date of such Borrowing until such principal amount is paid in full, at an interest rate per annum
equal at all times to the remainder obtained by subtracting (i) the LIBO Rate for the Interest
Period in effect for such Eurodollar Borrowing from (ii) the rate obtained by dividing such LIBO
Rate by a percentage equal to 100% minus the Eurodollar Rate Reserve Percentage of such Lender for
such Interest Period. Such additional interest shall be determined by such Lender. The Borrower
shall from time to time, within 15 days after demand (which demand shall be accompanied by a
certificate comporting with the requirements set forth in

24

 

Section 2.15(d)) by such Lender (with a
copy of such demand and certificate to the Administrative Agent) pay to the Lender giving such
notice such additional interest; provided, however, that the Borrower shall not be
required to pay to such Lender any portion of such additional interest that accrued more than
90 days prior to any such demand, unless such additional interest was not determinable on the date
that is 90 days prior to such demand.

     SECTION 2.14. Alternate Rate of Interest. If prior to the commencement of any
Interest Period for a Eurodollar Borrowing:

     (a) the Administrative Agent determines (which determination shall be conclusive absent
manifest error) that adequate and reasonable means do not exist for ascertaining the LIBO
Rate, as applicable, for such Interest Period; or

     (b) the Administrative Agent is advised by the Required Lenders that the LIBO Rate, as
applicable, for such Interest Period will not adequately and fairly reflect the cost to such
Lenders (or Lender) of making or maintaining their Loans (or its Loan) included in such
Borrowing for such Interest Period;

then the Administrative Agent shall give notice thereof to the Borrower and the Lenders by
telephone or telecopy as promptly as practicable thereafter and, until the Administrative Agent
notifies the Borrower and the Lenders that the circumstances giving rise to such notice no longer
exist, (i) any Interest Election Request that requests the conversion of any Borrowing to, or
continuation of any Borrowing as, a Eurodollar Borrowing shall be ineffective, and (ii) if any
Borrowing Request requests a Eurodollar Borrowing, such Borrowing shall be made as an ABR
Borrowing; provided that if the circumstances giving rise to such notice affect
only one Type of Borrowings, then the other Type of Borrowings shall be permitted.

     SECTION 2.15. Illegality; Increased Costs. (a) If any Change in Law shall make it
unlawful or impossible for any Lender to make, maintain or fund its Eurodollar Loans, such Lender
shall so notify the Administrative Agent. Upon receipt of such notice, the Administrative Agent
shall immediately give notice thereof to the other Lenders and to the Borrower, whereupon until
such Lender notifies the Borrower and the Administrative Agent that the circumstances giving rise
to such suspension no longer exist, the obligation of such Lender to make Eurodollar Loans shall be
suspended. If such Lender shall determine that it may not lawfully continue to maintain and fund
any of its outstanding Eurodollar Loans to maturity and shall so specify in such notice, the
Borrower shall immediately prepay (which prepayment shall not be subject to Section 2.11) in full
the then outstanding principal amount of such Eurodollar Loans, together with the accrued interest
thereon.

     (b) If any Change in Law shall:

     (i) impose, modify or deem applicable any reserve, special deposit or similar
requirement against assets of, deposits with or for the account of, or credit extended by,
any Lender (except any such reserve requirement reflected in Section 2.13(f)); or

     (ii) impose on any Lender or the London interbank market any other condition affecting
this Agreement or Eurodollar Loans made by such Lender;

25

 

and the result of any of the foregoing shall be to increase the cost to such Lender of making or
maintaining any Eurodollar Loan (or of maintaining its obligation to make any such Loan) or to
reduce the amount of any sum received or receivable by such Lender hereunder (whether of principal,
interest or otherwise), then the Borrower will pay to such Lender such additional amount or amounts
as will compensate such Lender for such additional costs incurred or reduction suffered.

     (c) If any Lender determines that any Change in Law regarding capital requirements has or
would have the effect of reducing the rate of return on such Lender’s capital or on the capital of
such Lender’s holding company, if any, as a consequence of this Agreement or the Loans made by such
Lender to a level below that which such Lender or such Lender’s holding company could have achieved
but for such Change in Law (taking into consideration such Lender’s policies and the policies of
such Lender’s holding company with respect to capital adequacy), then from time to time the
Borrower will pay to such Lender such additional amount or amounts as will compensate such Lender
or such Lender’s holding company for any such reduction suffered.

     (d) A certificate of a Lender setting forth, in reasonable detail showing the computation
thereof, the amount or amounts necessary to compensate such Lender or its holding company, as the
case may be, as specified in paragraph (b) or (c) of this Section shall be delivered to the
Borrower and shall be conclusive absent manifest error. Such certificate shall further certify
that such Lender is making similar demands of its other similarly situated borrowers. The Borrower
shall pay such Lender the amount shown as due on any such certificate within 10 days after receipt
thereof, if such certificate complies herewith.

     (e) Failure or delay on the part of any Lender to demand compensation pursuant to this Section
shall not constitute a waiver of such Lender’s right to demand such compensation; provided
that the Borrower shall not be required to compensate a Lender pursuant to this Section for
any increased costs or reductions incurred more than 90 days prior to the date that such Lender
notifies the Borrower of the Change in Law giving rise to such increased costs or reductions and of
such Lender’s intention to claim compensation therefor; provided further that, if
the Change in Law giving rise to such increased costs or reductions is retroactive, then the 90-day
period referred to above shall be extended to include the period of retroactive effect thereof (to
the extent that such period of retroactive effect is not already included in such 90-day period).

     SECTION 2.16. Break Funding Payments. In the event of (a) the payment of any
principal of any Eurodollar Loan other than on the last day of an Interest Period applicable
thereto (including as a result of an Event of Default), (b) the conversion of any Eurodollar Loan
other than on the last day of the Interest Period applicable thereto, (c) the failure to borrow,
convert, continue or prepay any Loan on the date specified in any notice delivered pursuant hereto
(regardless of whether such notice may be revoked under Section 2.11(b) and is revoked in
accordance therewith), or (d) the assignment of any Eurodollar Loan other than on the last day of
the Interest Period applicable thereto as a result of a request by the Borrower pursuant to
Section 2.19, then, in any such event, the Borrower shall compensate each Lender for the loss, cost
and expense (excluding loss of anticipated profits) attributable to such event. A certificate of
any Lender setting forth, in reasonable detail showing the computation thereof, any amount or
amounts that such Lender is entitled to receive pursuant to this Section shall be delivered to the
Borrower and shall be conclusive absent manifest error. The Borrower shall pay such Lender the

26

 

amount shown as due on any such certificate within 10 days after receipt thereof, if such
certificate complies herewith.

     SECTION 2.17. Taxes. (a)  Any and all payments by or on account of any obligation of
the Borrower hereunder shall be made free and clear of and without deduction for any Indemnified
Taxes or Other Taxes; provided that if the Borrower shall be required to deduct any
Indemnified Taxes or Other Taxes from such payments, then (i) the sum payable shall be increased as
necessary so that after making all required deductions (including deductions applicable to
additional sums payable under this Section) the Administrative Agent or any Lender (as the case may be) receives an amount equal
to the sum it would have received had no such deductions been made, (ii) the Borrower shall make
such deductions and (iii) the Borrower shall pay the full amount deducted to the relevant
Governmental Authority in accordance with applicable law.

     (b) In addition, the Borrower shall pay any Other Taxes to the relevant Governmental Authority
in accordance with applicable law.

     (c) The Borrower shall indemnify the Administrative Agent and each Lender, within 10 days
after written demand therefor, for the full amount of any Indemnified Taxes or Other Taxes paid by
the Administrative Agent or such Lender, as the case may be, on or with respect to any payment by
or on account of any obligation of the Borrower hereunder (including Indemnified Taxes or Other
Taxes imposed or asserted on or attributable to amounts payable under this Section) and any
penalties, interest and reasonable expenses arising therefrom or with respect thereto, whether or
not such Indemnified Taxes or Other Taxes were correctly or legally imposed or asserted by the
relevant Governmental Authority; provided that the Borrower shall not be required
to indemnify or reimburse a Lender pursuant to this Section for any Indemnified Taxes or Other
Taxes imposed or asserted more than 90 days prior to the date that such Lender notifies the
Borrower of the Indemnified Taxes or Other Taxes imposed or asserted and of such Lender’s intention
to claim compensation therefor; provided further that, if the Indemnified Taxes or
Other Taxes imposed or asserted giving rise to such claims are retroactive, then the 90-day period
referred to above shall be extended to include the period of retroactive effect thereof (to the
extent that such period of retroactive effect is not already included in such 90-day period). A
certificate setting forth, in reasonable detail showing the computation thereof, the amount of such
payment or liability delivered to the Borrower by a Lender, or by the Administrative Agent on its
own behalf or on behalf of a Lender, shall be conclusive absent manifest error.

     (d) As soon as practicable after any payment of Indemnified Taxes or Other Taxes by the
Borrower to a Governmental Authority, the Borrower shall deliver to the Administrative Agent the
original or a certified copy of a receipt issued by such Governmental Authority evidencing such
payment, a copy of the return reporting such payment or other evidence of such payment reasonably
satisfactory to the Administrative Agent.

     (e) Any Foreign Lender that is entitled to an exemption from or reduction of withholding tax
under the law of the jurisdiction in which the Borrower is located, or any treaty to which such
jurisdiction is a party, with respect to payments under this Agreement shall deliver to the
Borrower (with a copy to the Administrative Agent), at the time or times prescribed by applicable
law, such properly completed and executed documentation prescribed by applicable law or reasonably
requested by the Borrower as will permit such payments to be made without withholding or at such
reduced rate.

27

 

     (f) Should any Lender or the Administrative Agent during the term of this Agreement ever
receive any refund, credit or deduction from any taxing authority to which such Lender or the
Administrative Agent would not be entitled but for the payment by the Borrower of Taxes (it being
understood that the decision as to whether or not to claim, and if claimed, as to the amount of any
such refund, credit or deduction shall be made by such Lender or the Administrative Agent in its
sole discretion), such Lender or the Administrative Agent, as the case may be, thereupon shall
repay to the Borrower an amount with respect to such refund, credit or deduction equal to any net
reduction in taxes actually obtained by such Lender or the Administrative Agent,
as the case may be, and determined by such Lender or the Administrative Agent, as the case may
be, to be attributable to such refund, credit or deduction.

     (g) Except for a request by the Borrower under Section 2.19(b), no Foreign Lender shall be
entitled to the benefits of Sections 2.17(a) or 2.17(c) if withholding tax is imposed on amounts
payable to such Foreign Lender at the time such Foreign Lender becomes a party to this Agreement or
designates a new lending office.

     SECTION 2.18. Payments Generally; Pro Rata Treatment; Sharing of Set-offs. (a)  The
Borrower shall make each payment required to be made by it hereunder (whether of principal,
interest, fees or of amounts payable under Section 2.15, 2.16 or 2.17, or otherwise) prior to 1:00
p.m., New York City time, on the date when due, in immediately available funds, without set-off or
counterclaim. Any amounts received after such time on any date may, in the discretion of the
Administrative Agent, be deemed to have been received on the next succeeding Business Day for
purposes of calculating interest thereon. All such payments shall be made to the Administrative
Agent at its offices at 301 South College Street, Charlotte, North Carolina 28288-0608, except that
payments pursuant to Sections 2.15, 2.16, 2.17 and 9.03 shall be made directly to the Persons
entitled thereto. The Administrative Agent shall distribute any such payments received by it for
the account of any other Person to the appropriate recipient promptly following receipt thereof.
If any payment hereunder shall be due on a day that is not a Business Day, the date for payment
shall be extended to the next succeeding Business Day, and, in the case of any payment accruing
interest, interest thereon shall be payable for the period of such extension. All payments
hereunder shall be made in dollars.

     (b) If at any time insufficient funds are received by and available to the Administrative
Agent to pay fully all amounts of principal, interest and fees then due hereunder, such funds shall
be applied (i) first, towards payment of interest and fees then due hereunder, ratably among the
parties entitled thereto in accordance with the amounts of interest and fees then due to such
parties, and (ii) second, towards payment of principal then due hereunder, ratably among the
parties entitled thereto in accordance with the amounts of principal then due to such parties.

     (c) If any Lender shall, by exercising any right of set-off or counterclaim or otherwise,
obtain payment in respect of any principal of or interest on any of its Loans resulting in such
Lender receiving payment of a greater proportion of the aggregate amount of its Loans and accrued
interest thereon than the proportion received by any other Lender, then the Lender receiving such
greater proportion shall purchase (for cash at face value) participations in the Loans of other
Lenders to the extent necessary so that the benefit of all such payments shall be shared by the
Lenders ratably in accordance with the aggregate amount of principal of and accrued interest on
their respective Loans; provided that (i) if any such participations are purchased
and all or any portion of the payment giving rise thereto is recovered, such

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participations shall
be rescinded and the purchase price restored to the extent of such recovery, without interest, and
(ii) the provisions of this paragraph shall not be construed to apply to any payment made by the
Borrower pursuant to and in accordance with the express terms of this Agreement or any payment
obtained by a Lender as consideration for the assignment of or sale of a participation in any of
its Loans to any assignee or participant, other than to the Borrower or any Subsidiary or Affiliate
thereof (as to which the provisions of this paragraph shall apply). The Borrower consents to the
foregoing and agrees, to the extent it may effectively do so under applicable law, that any Lender
acquiring a participation pursuant to the foregoing arrangements
may exercise against the Borrower rights of set-off and counterclaim with respect to such
participation as fully as if such Lender were a direct creditor of the Borrower in the amount of
such participation.

     (d) Unless the Administrative Agent shall have received notice from the Borrower prior to the
date on which any payment is due to the Administrative Agent for the account of the Lenders
hereunder that the Borrower will not make such payment, the Administrative Agent may assume that
the Borrower has made such payment on such date in accordance herewith and may, in reliance upon
such assumption, distribute to the Lenders the amount due. In such event, if the Borrower has not
in fact made such payment, then each of the Lenders severally agrees to repay to the Administrative
Agent forthwith on demand the amount so distributed to such Lender with interest thereon, for each
day from and including the date such amount is distributed to it to but excluding the date of
payment to the Administrative Agent, at the greater of the Federal Funds Effective Rate and a rate
determined by the Administrative Agent in accordance with banking industry rules on interbank
compensation.

     (e) If any Lender shall fail to make any payment required to be made by it pursuant to Section
2.07(b) or 2.18(d), then the Administrative Agent may, in its discretion (notwithstanding any
contrary provision hereof), apply any amounts thereafter received by the Administrative Agent for
the account of such Lender to satisfy such Lender’s obligations under such Sections until all such
unsatisfied obligations are fully paid.

     SECTION 2.19. Mitigation Obligations; Replacement of Lenders. (a)  If any Lender
requests compensation under Section 2.15 or Section 2.13(f), or if the Borrower is required to pay
any additional amount to any Lender or any Governmental Authority for the account of any Lender
pursuant to Section 2.17, then such Lender shall use reasonable efforts to designate a different
lending office for funding or booking its Loans hereunder or to assign its rights and obligations
hereunder to another of its offices, branches or affiliates, if, in the judgment of such Lender,
such designation or assignment (i) would eliminate or reduce amounts payable pursuant to Section
2.13(f), 2.15 or 2.17, as the case may be, in the future and (ii) would not subject such Lender to
any unreimbursed cost or expense and would not otherwise be disadvantageous to such Lender. The
Borrower hereby agrees to pay all reasonable costs and expenses incurred by any Lender in
connection with any such designation or assignment. Subject to the foregoing, Lenders agree to use
reasonable efforts to select lending offices which will minimize taxes and other costs and expenses
for the Borrower.

     (b) If any Lender requests compensation under Section 2.13(f) or Section 2.15, or if the
Borrower is required to pay any additional amount to any Lender or any Governmental Authority for
the account of any Lender pursuant to Section 2.17, or if any Lender defaults in its obligation to
fund Loans hereunder, then the Borrower may, at its sole expense and effort, upon notice to such
Lender and the Administrative Agent, require such Lender to assign and delegate,

29

 

without recourse
(in accordance with and subject to the restrictions contained in Section 9.04), all its interests,
rights and obligations under this Agreement to an assignee that shall assume such obligations
(which assignee may be another Lender, if a Lender accepts such assignment); provided
that (i) the Borrower shall have received the prior written consent of the Administrative
Agent, which consent shall not unreasonably be withheld, (ii) such Lender shall have received
payment of an amount equal to the outstanding principal of its Loans, accrued interest thereon,
accrued fees and all other amounts payable to it hereunder, from the assignee (to the extent of
such outstanding principal and accrued interest and fees) or the Borrower (in the case of all other
amounts) and (iii) in the case of any such assignment resulting from a claim for compensation
under Section 2.13(f) or Section 2.15 or payments required to be made pursuant to Section 2.17,
such assignment will result in a reduction in such compensation or payments. A Lender shall not be
required to make any such assignment and delegation if, prior thereto, as a result of a waiver by
such Lender or otherwise, the circumstances entitling the Borrower to require such assignment and
delegation cease to apply. If any Lender refuses to assign and delegate all its interests, rights
and obligations under this Agreement after the Borrower has required such Lender to do so as a
result of a claim for compensation under Section 2.13(f) or Section 2.15 or payments required to be
made pursuant to Section 2.17, such Lender shall not be entitled to receive such compensation or
required payments.

     SECTION 2.20. Separateness. The Lenders acknowledge and affirm (i) their reliance on
the separateness of the Borrower and General Partner from each other and from other Persons,
including Enterprise Products OLLC, Enterprise Products Partners, EPCO and Enterprise GP Holdings,
(ii) that other creditors of the Borrower or the General Partner have likely advanced funds to such
Persons in reliance upon the separateness of the Borrower and General Partner from each other and
from other Persons, including Enterprise Products OLLC, Enterprise Products Partners, EPCO and
Enterprise GP Holdings, (iii) that each of the Borrower and General Partner have assets and
liabilities that are separate from those of each other and from other Persons, including Enterprise
Products OLLC, Enterprise Products Partners, EPCO and Enterprise GP Holdings, (iv) that the Loans
and other obligations owing under this Agreement, the Notes and documents related hereto or thereto
have not been guaranteed by General Partner, Enterprise Products OLLC, Enterprise Products
Partners, EPCO or Enterprise GP Holdings, and (v) that, except as other Persons may expressly
assume or guarantee this Agreement, the Notes or any documents related hereto or thereto or any of
the Loans or other obligations thereunder, the Lenders shall look solely to the Borrower and its
property and assets, and any property pledged as collateral with respect hereto or thereto, for the
repayment of any amounts payable pursuant hereto or thereto and for satisfaction of any obligations
owing to the Lenders hereunder or thereunder.

ARTICLE III

Representations and Warranties

     The Borrower represents and warrants to the Lenders that:

     SECTION 3.01. Organization; Powers. Each of the Borrower and its Subsidiaries is
duly formed, validly existing and (if applicable) in good standing (except, with respect to
Subsidiaries other than Material Subsidiaries, where the failure to be in good standing,
individually or in the aggregate, could not reasonably be expected to result in a Material Adverse
Effect) under the laws of the jurisdiction of its organization, has all requisite power and
authority

30

 

to carry on its business in all material respects as now conducted and, except where the
failure to do so, individually or in the aggregate, could not reasonably be expected to result in a
Material Adverse Effect, is qualified to do business in, and (if applicable) is in good standing
in, every jurisdiction where such qualification is required.

     SECTION 3.02. Authorization; Enforceability. The Transactions, the Acquisition and
the Equity Offering are within the Borrower’s partnership powers and have been duly authorized by
all necessary partnership and, if required, partner action. This Agreement has been duly executed
and delivered by the Borrower and constitutes a legal, valid and binding obligation of the
Borrower, enforceable against the Borrower in accordance with its terms, subject to applicable
bankruptcy, insolvency, reorganization, moratorium or other laws affecting creditors’ rights
generally and subject to general principles of equity, regardless of whether considered in a
proceeding in equity or at law.

     SECTION 3.03. Governmental Approvals; No Conflicts. The Transactions, the
Acquisition and the Equity Offering (a) do not require any consent or approval of, registration or
filing with, or any other action by, any Governmental Authority, except such as have been obtained
or made and are in full force and effect as of the Effective Date, other than filings after the
Effective Date in the ordinary course of business, (b) will not violate any law or regulation
applicable to the Borrower or the limited partnership agreement, charter, by-laws or other
organizational documents of the Borrower or any of its Subsidiaries or any order of any
Governmental Authority to which the Borrower or any of its Subsidiaries is subject, (c) will not
violate or result in a default under any material indenture, agreement or other instrument binding
upon the Borrower or any of its Subsidiaries or its assets, or give rise to a right thereunder to
require any payment to be made by the Borrower or any of its Subsidiaries and (d) will not result
in the creation or imposition of any Lien on any asset of the Borrower or any of its Subsidiaries
that is prohibited hereby.

     SECTION 3.04. Financial Condition; No Material Adverse Change. (a)  The Borrower
has heretofore furnished to the Lenders the predecessor combined balance sheets of the businesses
of the Acquisition Subsidiaries, and the related predecessor statements of combined operations and
comprehensive income, combined changes in net owners’ investment, and combined cash flows of the
businesses of the Acquisition Subsidiaries as of and for the fiscal years ended December 31, 2005,
December 31, 2006 and December 31, 2007, such predecessor combined financial statements audited by
Deloitte & Touche LLP. Such predecessor financial statements present fairly, in all material
respects, the financial position and results of operations and cash flows of the businesses of the
Acquisition Subsidiaries as of such dates and for such periods in accordance with GAAP. The
unaudited pro forma condensed combined financial statements furnished to Lenders were prepared in
good faith based on the basis of assumptions that were believed to be reasonable in light of
then-existing conditions (subject to the proviso that it is understood that such pro forma
condensed combined financial statements and forecasts are based upon professional opinions,
estimates and projections and that the Borrower does not warrant that such opinions, estimates and
projections will ultimately prove to have been accurate).

     (b) No Material Adverse Change exists.

     SECTION 3.05. Litigation and Environmental Matters. (a) There are no actions, suits
or proceedings by or before any arbitrator or Governmental Authority pending against or, to the

31

 

knowledge of the Borrower, threatened in writing against or affecting the Borrower or any of its
Subsidiaries (i) as to which there is a reasonable possibility of an adverse determination and
that, if adversely determined, could reasonably be expected, individually or in the aggregate, to
result in a Material
Adverse Effect (other than the Disclosed Matters) or (ii) that involve this Agreement, the
Transactions, the Acquisition or the Equity Offering.

     (b) Except for the Disclosed Matters and except with respect to any other matters that,
individually or in the aggregate, could not reasonably be expected to result in a Material Adverse
Effect, neither the Borrower nor any of its Subsidiaries (i) has failed to comply with any
Environmental Law or to obtain, maintain or comply with any permit, license or other approval
required under any Environmental Law, (ii) has become subject to any Environmental Liability,
(iii) has received notice of any claim with respect to any Environmental Liability or (iv) knows of
any basis for any Environmental Liability.

     (c) Since the date of this Agreement, there has been no change in the status of the Disclosed
Matters that, individually or in the aggregate, has resulted in a Material Adverse Effect.

     SECTION 3.06. Compliance with Laws. Each of the Borrower and its Subsidiaries is in
compliance with all laws, regulations and orders of any Governmental Authority applicable to it or
its property, except where the failure to do so, individually or in the aggregate, could not
reasonably be expected to result in a Material Adverse Effect. No Default has occurred and is
continuing.

     SECTION 3.07. Investment Company Status. Neither the Borrower nor any of its
Subsidiaries is an “investment company” as defined in, or subject to regulation under, the
Investment Company Act of 1940.

     SECTION 3.08. Taxes. Each of the Borrower and its Subsidiaries has timely filed or
caused to be filed all Tax returns and reports required to have been filed and has paid or caused
to be paid all Taxes required to have been paid by it, except (a) Taxes that are being contested in
good faith by appropriate proceedings and for which the Borrower or such Subsidiary, as applicable,
has set aside on its books adequate reserves or (b) to the extent that the failure to do so could
not reasonably be expected to result in a Material Adverse Effect.

     SECTION 3.09. ERISA. No ERISA Event has occurred or is reasonably expected to occur
that, when taken together with all other such ERISA Events for which liability is reasonably
expected to occur, could reasonably be expected to result in a Material Adverse Effect.

     SECTION 3.10. Disclosure. Neither the Information Memorandum nor any of the other
reports, financial statements, certificates or other information furnished by or on behalf of the
Borrower to the Administrative Agent or any Lender in connection with the negotiation of this
Agreement (as modified or supplemented by other information so furnished) contains any material
misstatement of fact or omits to state any material fact necessary to make the statements therein,
in the light of the circumstances under which they were made, not misleading; provided
that, with respect to projected financial information, the Borrower represents only that
such information was prepared in good faith based upon assumptions believed to be reasonable at the
time.

32

 

     SECTION 3.11. Subsidiaries. As of the Effective Date the Borrower has no
Subsidiaries other than those listed on Schedule 3.11. As of the Effective Date Schedule 3.11 sets
forth the jurisdiction of incorporation or organization of each such Subsidiary, the percentage of
the Borrower’s ownership of the outstanding Equity Interests of each Subsidiary directly owned by
the Borrower, and the percentage of each Subsidiary’s ownership of the outstanding Equity Interests
of each other Subsidiary.

     SECTION 3.12. Margin Securities. Neither the Borrower nor any Subsidiary is engaged
principally, or as one of its important activities, in the business of extending credit for the
purpose of purchasing or carrying margin stock (within the meaning of Regulations U or X of the
Board of Governors of the Federal Reserve System), and no part of the proceeds of any Loan will be
used to purchase or carry any margin stock in violation of said Regulations U or X or to extend
credit to others for the purpose of purchasing or carrying margin stock in violation of said
Regulations U or X.

ARTICLE IV

Conditions

     SECTION 4.01. Effective Date. The obligations of the Lenders to make Loans hereunder
shall not become effective until the Effective Date which is scheduled to occur when each of the
following conditions is satisfied:

     (a) The Administrative Agent (or its counsel) shall have received from each party hereto
either (i) a counterpart of this Agreement signed on behalf of such party or (ii) written evidence
satisfactory to the Administrative Agent (which may include telecopy transmission of a signed
signature page of this Agreement) that such party has signed a counterpart of this Agreement.

     (b) The Administrative Agent shall have received favorable written opinions (addressed to the
Administrative Agent and the Lenders and dated the Effective Date) of (i) Stephanie Hildebrandt,
in-house counsel for Borrower, and Bracewell & Giuliani LLP, counsel for Borrower, substantially in
the forms of Exhibits E-1 and E-2 with respect to the Transactions, and (ii) counsel for Borrower
with respect to the Acquisition and the Equity Offering, in form and substance reasonably
satisfactory to the Administrative Agent and its counsel.

     (c) The Administrative Agent shall have received such documents and certificates as the
Administrative Agent or its counsel may reasonably request relating to (1) the organization and
existence of the Borrower, and (2) the authorization of the Transactions, the Acquisition and the
Equity Offering and any other legal matters relating to the Borrower, this Agreement, the
Transactions, the Acquisition or the Equity Offering, all in form and substance reasonably
satisfactory to the Administrative Agent and its counsel.

     (d) The Administrative Agent shall have received each promissory note requested by a Lender
pursuant to Section 2.10(e), each duly completed and executed by the Borrower.

     (e) The Administrative Agent shall have received a certificate, dated the Effective Date and
signed by the President, an Executive Vice President or a Financial Officer of the

33

 

Borrower,
confirming compliance with the conditions set forth in paragraphs (a) and (b) of Section 4.02.

     (f) The Administrative Agent shall have received all fees and other amounts due and payable on
or prior to the Effective Date, including, to the extent invoiced five (5) Business Days prior to
closing, reimbursement or payment of all out-of-pocket expenses required to be reimbursed or paid
by the Borrower hereunder.

     (g) As of the Effective Date, no Material Adverse Change exists.

     (h) Prior to the date hereof, there shall not have been any material disruption or material
adverse change in the financial, banking or capital markets generally or in the market for loan
syndications in particular, which the Administrative Agent, in its reasonable judgment, determines
could materially impair the syndication hereof.

     (i) The Lenders shall have received (i) the financial statements set forth in Section 3.04(a),
and (ii) copies of financial statements for the Borrower and its Subsidiaries as of the Effective
Date, taking into pro forma account the Transactions, the Acquisition, the Equity Offering and the
transactions related thereto, and reflecting pro forma compliance with the Leverage Ratio as of the
Effective Date and the interest coverage ratio set forth in Section 6.07(a) for the four fiscal
quarters ending December 31, 2007, as provided in the Borrower’s Form 8-K filed with the SEC with
respect to the Acquisition.

     (j) All necessary governmental and third-party approvals, if any, required to be obtained by
the Borrower in connection with the Transactions, the Acquisition and the Equity Offering and
otherwise referred to herein shall have been obtained and remain in effect (except where failure to
obtain such approvals will not have a Material Adverse Effect), and all applicable waiting periods
shall have expired without any action being taken by any applicable authority, including evidence
reasonably satisfactory to Administrative Agent that all notice requirements have been satisfied,
and all applicable time periods under the Hart-Scott-Rodino Antitrust Improvement Act of 1976, as
amended, shall have expired, or all applicable approvals required thereunder shall have been
received.

     (k) The Administrative Agent and Lenders shall have received copies of the Registration
Statement, and the Administrative Agent shall have received copies of any amendments to the
Registration Statement after the date hereof and prior to the Effective Date, and copies of all
other final executed documents relating to the Equity Offering filed with the SEC, in form and
substance reasonably satisfactory to Administrative Agent or as described in or attached to the
Registration Statement, and evidence reasonably satisfactory to the Administrative Agent of the
contemporaneous consummation of the Equity Offering, substantially on the terms set forth in the
Registration Statement, and the receipt by the Borrower of total net proceeds therefrom and from
the issuance of Equity Interests of the Borrower to Enterprise Products OLLC of not less than
$450,000,000.

     (l) The Administrative Agent shall have received copies of the Acquisition Documents, in form
and substance satisfactory to Administrative Agent or as described in or attached to the
Registration Statement, certified by the Borrower and duly and validly executed by each party
thereto, and evidence reasonably satisfactory to Administrative Agent of the

34

 

contemporaneous
consummation of the Acquisition, substantially on the terms set forth in the Registration
Statement.

The Administrative Agent shall notify the Borrower and the Lenders of the Effective Date, and such
notice shall be conclusive and binding; provided, that if the Equity Offering and the Effective
Date do not occur on or prior to July 18, 2008, then the Effective Date shall be deemed to not have
occurred and this Agreement shall terminate.

     SECTION 4.02. Additional Conditions Precedent . The obligation of each Lender to
make its Loan on the Effective Date is subject to the satisfaction of the following additional
conditions:

     (a) The representations and warranties of the Borrower set forth in this Agreement shall be
true and correct in all material respects on and as of the date of such Loan.

     (b) At the time of and immediately after giving effect to such Loan, no Default shall have
occurred and be continuing.

The Borrowing shall be deemed to constitute a representation and warranty by the Borrower on the
Effective Date as to the matters specified in paragraphs (a) and (b) of this Section.

ARTICLE V

Affirmative Covenants

     Until the Commitments have expired or been terminated and the principal of and interest on
each Loan and all fees payable hereunder shall have been paid in full, the Borrower covenants and
agrees with the Lenders that:

     SECTION 5.01. Financial Statements and Other Information. The Borrower will furnish,
or cause to be furnished, to the Administrative Agent and each Lender:

     (a) within 15 days after filing same with the Securities and Exchange Commission
(“SEC”), copies of each annual report on Form 10-K, quarterly report on Form 10-Q and
report on Form 8-K (or any successor or substitute forms) that the Borrower is required to file
with the SEC pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended,
and any successor statute (the “Exchange Act”);

     (b) if the Borrower is not subject to the requirements of Section 13 or 15(d) of the Exchange
Act, promptly after becoming available and in any event within 105 days after the
close of each fiscal year of the Borrower (i) the audited consolidated balance sheets of the
Borrower and its consolidated Subsidiaries as at the end of such year and (ii) the audited
consolidated statements of income, equity and cash flow of the Borrower and its consolidated
Subsidiaries for such year setting forth in each case in comparative form the corresponding figures
for the preceding fiscal year, which report shall be to the effect that such statements have been
prepared in accordance with GAAP;

     (c) if the Borrower is not subject to Section 13 or 15(d) of the Exchange Act, promptly after
their becoming available and in any event within 60 days after the close of each of the first three
fiscal quarters of each fiscal year of the Borrower, (i) the unaudited consolidated

35

 

balance sheets
of the Borrower and its consolidated Subsidiaries as at the end of such quarter and (ii) the
unaudited consolidated statements of income, equity and cash flow of the Borrower for such quarter,
setting forth in each case in comparative form the corresponding figures for the preceding fiscal
year, all of the foregoing certified by a Financial Officer of the Borrower to have been prepared
in accordance with GAAP subject to normal changes resulting from year-end adjustment and
accompanied by a written discussion of the financial performance and operating results, including
the major assets, of the Borrower for such quarter; and

     (d) within 60 days after the end of each fiscal quarter of each fiscal year of the Borrower, a
certificate of a Financial Officer of the Borrower substantially in the form of Exhibit F (i)
certifying as to whether a Default has occurred that is then continuing and, if a Default has
occurred that is then continuing, specifying the details thereof and any action taken or proposed
to be taken with respect thereto, and (ii) setting forth in reasonable detail calculations
demonstrating compliance with Section 6.07.

     SECTION 5.02. Notices of Material Events. The Borrower will furnish to the
Administrative Agent and each Lender prompt written notice of the following:

     (a) the occurrence of any Event of Default; and

     (b) any other development that results in, or could reasonably be expected to result in, a
Material Adverse Effect.

Each notice delivered under this Section shall be accompanied by a statement of a Financial Officer
or other executive officer of the Borrower setting forth the details of the event or development
requiring such notice and any action taken or proposed to be taken with respect thereto.

     SECTION 5.03. Existence; Conduct of Business. The Borrower will do or cause to be
done all things necessary to preserve, renew and keep in full force and effect its legal existence
and the rights, licenses, permits, privileges and franchises material to the conduct of its
business; provided that the foregoing shall not prohibit any merger, consolidation,
liquidation or dissolution not prohibited under Section 6.03.

     SECTION 5.04. Maintenance of Properties; Insurance. The Borrower will, and will
cause each of its Subsidiaries to, (a) keep and maintain all property material to the conduct of
its business in good working order and condition, ordinary wear and tear excepted, and
(b) maintain, with financially
sound and reputable insurance companies, insurance in such amounts and against such risks as
are customarily maintained by companies engaged in the same or similar businesses operating in the
same or similar locations.

     SECTION 5.05. Books and Records; Inspection Rights. The Borrower will, and will
cause each of its Subsidiaries to, keep in accordance with GAAP proper books of record and account
in which full, true and correct entries are made in all material respects of all dealings and
transactions in relation to its business and activities. The Borrower will, and will cause each of
its Subsidiaries to, permit any representatives designated by the Administrative Agent or any
Lender, upon reasonable prior notice, to visit and inspect its properties, to examine and make
extracts from its books and records, and to discuss its affairs, finances and condition with its

36

 

officers and independent accountants, all at such reasonable times and as often as reasonably
requested.

     SECTION 5.06. Compliance with Laws. The Borrower will, and will cause each of its
Subsidiaries to, comply with all laws, rules, regulations and orders of any Governmental Authority
applicable to it or its property, except where the failure to do so, individually or in the
aggregate, could not reasonably be expected to result in a Material Adverse Effect.

     SECTION 5.07. Use of Proceeds. The proceeds of the Loans will be used only for (i)
distribution to Enterprise Products OLLC or its Affiliates to partially fund the Acquisition, (ii)
for payment of transaction and offering expenses related to the Acquisition, the Equity Offering,
the Transactions and related transactions, and (iii) for payment of a portion of the Borrower’s
outstanding Indebtedness under that certain Revolving Credit Agreement dated January 5, 2007. No
part of the proceeds of any Loan will be used, whether directly or indirectly, for any purpose that
entails a violation of any of the Regulations of the Board, including Regulations U and X.

     SECTION 5.08. Environmental Matters. The Borrower has established and implemented,
or will establish and implement, and will cause each of its Subsidiaries to establish and
implement, such procedures as may be necessary to assure that (except for any failure of the
following that, individually or in the aggregate, does not have a Material Adverse Effect): (i) all
property of the Borrower and its Subsidiaries and the operations conducted thereon are in
compliance with and do not violate the requirements of any Environmental Laws, (ii) no oil or solid
wastes are disposed of or otherwise released on or to any property owned by the Borrower or its
Subsidiaries except in compliance with Environmental Laws, (iii) no Hazardous Materials will be
released on or to any such property in a quantity equal to or exceeding that quantity which
requires reporting pursuant to Section 103 of CERCLA, and (iv) no oil or Hazardous Materials is
released on or to any such property so as to pose an imminent and substantial endangerment to
public health or welfare or the environment.

     SECTION 5.09 ERISA Information. The Borrower will furnish to the Administrative
Agent:

     (a) within 15 Business Days after the institution of or the withdrawal or partial
withdrawal by the Borrower, any Subsidiary or any ERISA Affiliate from any Multiemployer
Plan which would cause the Borrower, any Subsidiary or any ERISA Affiliate to incur
withdrawal liability in excess of $10,000,000 (in the aggregate for all
such withdrawals), a written notice thereof signed by an executive officer of the
Borrower stating the applicable details; and

     (b) within 15 Business Days after an officer of the Borrower becomes aware of any
material action at law or at equity brought against the Borrower, any of its Subsidiaries,
any ERISA Affiliate, or any fiduciary of a Plan in connection with the administration of any
Plan or the investment of assets thereunder, a written notice signed by an executive officer
of the Borrower specifying the nature thereof and what action the Borrower is taking or
proposes to take with respect thereto.

     SECTION 5.10 Taxes. The Borrower will, and will cause each of its Subsidiaries to,
pay and discharge, or cause to be paid and discharged, promptly or make, or cause to be made,
timely deposit of all taxes (including Federal Insurance Contribution Act payments and withholding

37

 

taxes), assessments and governmental charges or levies imposed upon the Borrower or any Subsidiary
or upon the income or any property of the Borrower or any Subsidiary; provided,
however, that neither the Borrower nor any Subsidiary shall be required to pay any such
tax, assessment, charge, levy or claim if the amount, applicability or validity thereof shall
currently be contested in good faith by appropriate proceedings diligently conducted by or on
behalf of the Borrower or its Subsidiary, and if the Borrower or its Subsidiary shall have set up
reserves therefor adequate under GAAP or if no Material Adverse Effect shall be occasioned by all
such failures in the aggregate.

ARTICLE VI

Negative Covenants

     Until the Commitments have expired or terminated and the principal of and interest on each
Loan and all fees payable hereunder have been paid in full, the Borrower covenants and agrees with
the Lenders that:

     SECTION 6.01. Indebtedness. The Borrower will not permit any Subsidiary to create,
incur or assume any Indebtedness, except:

     (a) Indebtedness of any Person that becomes a Subsidiary of the Borrower, to the extent such
Indebtedness is outstanding at the time such Person becomes a Subsidiary of the Borrower and was
not incurred in contemplation thereof and Indebtedness refinancing (but not increasing) such
Indebtedness, and Indebtedness assumed by any Subsidiary in connection with its acquisition
(whether by merger, consolidation, acquisition of all or substantially all of the assets or
acquisition that results in the ownership of greater than fifty percent (50%) of the Equity
Interests of a Person) of another Person and Indebtedness refinancing (but not increasing) such
Indebtedness, provided that at the time of and after giving effect to the
incurrence or assumption of such Indebtedness or refinancing Indebtedness and the application of
the proceeds thereof, as the case may be, the aggregate principal amount of all such Indebtedness,
and of all Indebtedness previously incurred or assumed pursuant to this Section 6.01(a), and then
outstanding, shall not exceed 50% of Consolidated EBITDA for the period of four full fiscal
quarters of the Borrower and its Subsidiaries (and such Person on a pro forma basis) then most
recently ended;

     (b) Indebtedness of Project Finance Subsidiaries;

     (c) intercompany Indebtedness; provided any Subsidiary incurring intercompany
Indebtedness shall be required within five Business Days of such incurrence to incur Indebtedness
to its minority interest owners in an amount such that intercompany Indebtedness of such Subsidiary
owing to the Borrower or its Subsidiaries shall not exceed an amount equal to (i) the Borrower’s
percentage ownership of such Subsidiary times (ii) the amount of all Indebtedness of such
Subsidiary owing to its owners.

     (d) Indebtedness of Evangeline existing on the date hereof and set forth on Schedule 6.01;

     (e) guarantees of the obligations and Indebtedness hereunder; and

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     (f) other Indebtedness in an aggregate principal amount not exceeding $25,000,000 at any time
outstanding;

provided, however, that no Subsidiary (other than a Project Finance Subsidiary)
shall create, incur or assume any Indebtedness pursuant to any provision of this Section 6.01 if an
Event of Default shall have occurred and be continuing or would result from such creation,
incurrence or assumption.

     SECTION 6.02. Liens. The Borrower shall not, and shall not permit any Subsidiary
(other than Project Finance Subsidiaries) to, create, assume, incur or suffer to exist any Lien,
other than a Permitted Lien, on any of its assets or property or upon any Equity Interests of any
Subsidiary (other than Project Finance Subsidiaries) which Equity Interests are now owned or
hereafter acquired by the Borrower or such Subsidiary to secure any Indebtedness of the Borrower or
any other Person (other than the Indebtedness under this Agreement). Prior to the date on which
the Borrower obtains an investment-grade rating on its Index Debt from any of Moody’s, S&P or
Fitch, no organizational document of the Borrower or any Subsidiary (other than Project Finance
Subsidiaries and joint ventures) shall limit, restrict or prohibit, and the Borrower shall not and
shall not permit any Subsidiary (other than a Project Finance Subsidiary or joint venture) to enter
into any contract or other agreement, or otherwise consent or approve, any limitation, restriction
or prohibition on its ability to create, incur, assume or suffer to exist Liens on the Equity
Interests of any Subsidiary (other than a Project Finance Subsidiary or joint venture) in favor of
Administrative Agent for the benefit of Lenders to secure the obligations and Indebtedness
hereunder and under the Notes.

     SECTION 6.03. Fundamental Changes. The Borrower will not merge into or consolidate
with any other Person, or permit any other Person to merge into or consolidate with it, or sell,
transfer, lease or otherwise dispose of (in one transaction or in a series of transactions) all or
substantially all of its assets, or all or substantially all of the Equity Interests of any of its
Subsidiaries (other than Project Finance Subsidiaries) (in each case, whether now owned or
hereafter acquired), or liquidate or dissolve, except that, if at the time thereof and immediately
after giving effect thereto no Default shall have occurred and be continuing (i) any Person may
merge into or consolidate with the
Borrower in a transaction in which the Borrower is the surviving entity, (ii) any Subsidiary
of the Borrower may be merged into or consolidated with another Subsidiary, change its jurisdiction
of organization, or change the type of business entity in which it conducts its business, and (iii)
the Borrower may sell or otherwise dispose of all or substantially all of Equity Interests in any
Subsidiary to the extent permitted under Section 6.08.

     SECTION 6.04. Investment Restriction. Neither the Borrower nor any Subsidiary (other
than a Project Finance Subsidiary) will make or suffer to exist investments in Project Finance
Subsidiaries, in the aggregate at any one time outstanding, in excess of the sum of (i) the amount
of investments existing as of the Effective Date in Project Finance Subsidiaries, (ii) $50,000,000,
and (iii) the amount of any portion of the investments permitted by this Section 6.04 repaid to the
Borrower or any Subsidiary as a dividend, repayment of a loan or advance, release or discharge of a
guarantee or other obligation or other transfer of property or return of capital, as the case may
be, occurring after the Effective Date. Computation of the amount of any investment shall be made
without any adjustment for increases or decreases in value, or write-ups, write-downs or write-offs
with respect to such investment or interest or other earnings on such investment.

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     SECTION 6.05. Restricted Payments. Except for the distribution to Enterprise
Products OLLC or its Affiliates of certain proceeds of the initial Loans as provided in Section
5.07, the Borrower will not, and will not permit any of its Subsidiaries (other than Project
Finance Subsidiaries) to, declare or make, or agree to pay or make, directly or indirectly, any
Restricted Payment, except as long as no Event of Default has occurred and is continuing or would
result therefrom, (i) the Borrower may make Restricted Payments from Available Cash (as defined in
the Partnership Agreement) from Operating Surplus (as defined in the Partnership Agreement)
cumulative from January 1, 2007 through the date of such Restricted Payment, (ii) the Borrower may
make additional Restricted Payments of up to $20,000,000 during the term of this Agreement, (iii)
subject to Section 6.09, any Subsidiary may buy back any of its own Equity Interests, and (iv) the
Borrower and its Subsidiaries may make payments or other distributions to officers, directors or
employees with respect to the exercise by any such Persons of options, warrants or other rights to
acquire Equity Interests in the Borrower or such Subsidiary issued pursuant to an employment,
equity award, equity option or equity appreciation agreement or plans entered into by the Borrower
or such Subsidiary in the ordinary course of business; provided, that even if an
Event of Default shall have occurred and is continuing, no Subsidiary shall be prohibited from
upstreaming dividends or other payments to the Borrower or any Subsidiary (which is not a Project
Finance Subsidiary) or making, in the case of any Subsidiary that is not wholly-owned (directly or
indirectly) by the Borrower, dividends or payments, as the case may be, to the other owners of
Equity Interests in such Subsidiary; provided, any dividends or payments by any such
Subsidiary that is not wholly-owned (directly or indirectly) by the Borrower to the Borrower shall
be not less than an amount equal to (x) the Borrower’s direct or indirect percentage ownership of
Equity Interests in such Subsidiary times (y) the amount of all such dividends and payments
made to all owners of Equity Interests in such Subsidiary.

     SECTION 6.06. Restrictive Agreements. The Borrower will not, and will not permit any
of its Subsidiaries (other than Project Finance Subsidiaries) to, directly or indirectly, enter
into, incur or permit to exist any agreement or other arrangement with any Person, other than the
Lenders pursuant hereto, which prohibits, restricts or imposes any conditions upon the ability of
any Subsidiary (other
than Project Finance Subsidiaries) to (a) pay dividends or make other distributions or pay any
Indebtedness owed to the Borrower or any Subsidiary, or (b) make subordinate loans or advances to
or make other investments in the Borrower or any Subsidiary in each case, other than restrictions
or conditions contained in, or existing by reasons of, any agreement or instrument (i) relating to
any Indebtedness of any Subsidiary permitted by Section 6.01, (ii) relating to property existing at
the time of the acquisition thereof, so long as the restriction or condition relates only to the
property so acquired, (iii) relating to any Indebtedness of, or otherwise to, any Subsidiary at the
time such Subsidiary was merged or consolidated with or into, or acquired by, the Borrower or a
Subsidiary or became a Subsidiary and not created in contemplation thereof, (iv) effecting a
renewal, extension, refinancing, refund or replacement (or successive extensions, renewals,
refinancings, refunds or replacements) of Indebtedness issued under an agreement referred to in
clauses (i) through (iii) above, so long as the restrictions and conditions contained in any such
renewal, extension, refinancing, refund or replacement agreement, taken as a whole, are not
materially more restrictive than the restrictions and conditions contained in the original
agreement, as determined in good faith by the board of directors of the General Partner, (v)
constituting customary provisions restricting subletting or assignment of any leases of the
Borrower or any Subsidiary or provisions in agreements that restrict the assignment of such
agreement or any rights thereunder, (vi) constituting restrictions on the sale or other disposition
of any property securing Indebtedness as a result of a Lien on

40

 

such property permitted hereunder,
(vii) constituting any temporary encumbrance or restriction with respect to a Subsidiary under an
agreement that has been entered into for the disposition of all or substantially all of the
outstanding Equity Interests of or assets of such Subsidiary, provided that such
disposition is otherwise permitted hereunder, (viii) constituting customary restrictions on cash,
other deposits or assets imposed by customers and other persons under contracts entered into in the
ordinary course of business, (ix) constituting provisions contained in agreements or instruments
relating to Indebtedness that prohibit the transfer of all or substantially all of the assets of
the obligor under that agreement or instrument unless the transferee assumes the obligations of the
obligor under such agreement or instrument or such assets may be transferred subject to such
prohibition, (x) constituting a requirement that a certain amount of Indebtedness be maintained
between a Subsidiary and the Borrower or another Subsidiary, (xi) constituting any restriction or
condition with respect to property under an agreement that has been entered into for the
disposition of such property, provided that such disposition is otherwise permitted
hereunder, (xii) constituting any restriction or condition with respect to property under a
charter, lease or other agreement that has been entered into for the employment of such property or
(xiii) that is a Hybrid Security or an indenture, document, agreement or security entered into or
issued in connection with a Hybrid Security or otherwise constituting a restriction or condition on
the payment of dividends or distributions by an issuer of a Hybrid Security.

     SECTION 6.07 Financial Condition Covenants.

     (a) Ratio of Consolidated EBITDA to Consolidated Interest Expense. Until the Borrower
obtains an investment-grade rating on its Index Debt from any of Moody’s, S&P or Fitch, the
Borrower shall not permit its ratio of Consolidated EBITDA to Consolidated Interest Expense in each
case for the four full fiscal quarters most recently ended to be less than 2.75 to 1.00 as of the
last day of any fiscal quarter.

     (b) Leverage Ratio. The Borrower shall not permit its ratio of Consolidated
Indebtedness to Consolidated EBITDA in each case for the four full fiscal quarters most recently
ended (the “Leverage Ratio”) to exceed 5.00 to 1.00 as of the last day of any fiscal
quarter; provided, following a Specified Acquisition (defined below), such ratio shall not
exceed

5.50 to 1.00 as of the last day of (i) the fiscal quarter in which the Specified Acquisition
occurred (the “Acquisition Quarter”), and (ii) the two fiscal quarters following the
Acquisition Quarter, and

5.00 to 1.00 as of the last day of any fiscal quarter thereafter.

As used herein, “Specified Acquisition” means, at the election of Borrower, one or more
acquisitions (excluding the Acquisition) of assets or entities or operating lines or divisions in
any rolling 12-month period for an aggregate purchase price of not less than $25,000,000;
provided, in the event the Leverage Ratio exceeds 5.00 to 1.00 at the end of any fiscal
quarter in which one or more acquisitions otherwise qualifying as a Specified Acquisition but for
Borrower’s failure to so elect shall have occurred, Borrower shall be deemed to have so elected a
Specified Acquisition with respect thereto; provided, further, following the
election (or deemed election) of a Specified Acquisition, Borrower may not elect (or be deemed to
have elected) a subsequent Specified Acquisition unless, at the time of such subsequent election,
the Leverage Ratio does not exceed 5.00 to 1.00.

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     (c) Calculation Methodology. For purposes of calculating the financial covenant
ratios set forth in this Section 6.07, the Project Finance Subsidiaries shall be disregarded. For
purposes of Section 6.07(b), if during any period of four fiscal quarters the Borrower or any
Subsidiary acquires any Person (or any interest in any Person) or all or substantially all of the
assets of any Person, the EBITDA attributable to such assets or an amount equal to the percentage
of ownership of the Borrower or a Subsidiary, as the case may be, in such Person times the EBITDA
of such Person, for such period determined on a pro forma basis (which determination, in each case,
shall be subject to approval of the Administrative Agent, not to be unreasonably withheld) may be
included as Consolidated EBITDA for such period as if such acquisition occurred on the first day of
such four fiscal quarter period; provided that during the portion of such period
that follows such acquisition, the computation in respect of the EBITDA of such Person or such
assets, as the case may be, shall be made on the basis of actual (rather than pro forma) results.

In addition, for purposes of this Section 6.07: (i) Hybrid Securities up to an aggregate amount of
15% of Consolidated Total Capitalization shall be excluded from Consolidated Indebtedness, and (ii)
Consolidated EBITDA may include, at Borrower’s option, any Material Project EBITDA Adjustments as
provided in the definition thereof.

     SECTION 6.08 Asset Dispositions. The Borrower will not, and will not permit any of
its Subsidiaries (other than Project Finance Subsidiaries) to Dispose of any assets or properties,
other than (a) Dispositions of inventory in the ordinary course of business, (b) Dispositions for
which the consideration received therefor is less than $50,000 and Dispositions of machinery and
equipment no longer used or useful in the conduct of business of the Borrower and its Subsidiaries
that are Disposed of in the ordinary course of business, (c) Dispositions of assets to the Borrower
or a Subsidiary (other than a Project Finance Subsidiary), (d) Dispositions of cash equivalents for
fair market value and Dispositions of investments permitted under Section 6.04, (e) Dispositions of
accounts receivable in connection with the collection or compromise thereof, (f) Dispositions of
licenses, sublicenses, leases or subleases granted to others not interfering in any material
respect with the
business of the Borrower and its Subsidiaries, (g) Dispositions in which: (i) the assets being
disposed are used simultaneously in exchange for replacement assets or (ii) the net proceeds
thereof are either (A) reinvested within 180 days from such Disposition in assets to be used in the
ordinary course of the business of the Borrower and its Subsidiaries and/or (B) used to permanently
reduce the aggregate Lenders’ Commitments on a dollar for dollar basis, (h) the sale of the
Evangeline pipeline system pursuant to the exercise of the previously-granted purchase option with
respect thereto by the holder thereof, and (i) other Dispositions not exceeding in the aggregate
for the Borrower and its Subsidiaries, determined as of the date of such Disposition (A) 10% of
Consolidated Net Tangible Assets, in any fiscal year and (B) 25% of Consolidated Net Tangible
Assets during the period from January 5, 2007 through the Maturity Date. For purposes of the
foregoing, prior to receipt by the Administrative Agent of the Borrower’s first quarterly financial
statements pursuant to Section 5.01(a), Consolidated Net Tangible Assets shall be determined based
upon the Borrower’s pro forma financial statements delivered pursuant to Section 4.01(i), and
thereafter, on the Borrower’s most recently delivered quarterly or annual financial statements.

     SECTION 6.09 Affiliate Transactions. The Borrower will not, and will not permit any
Subsidiary to, directly or indirectly, pay any funds to or for the account of, make any investment
in, lease, sell, transfer or otherwise dispose of any assets, tangible or intangible, to, or
participate

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in, or effect, any transaction with, any officer, director, employee or Affiliate
(other than the Borrower or any Subsidiary) unless any and all such transactions between the
Borrower and its Subsidiaries on the one hand and any officer, director, employee or Affiliate
(other than the Borrower or any Subsidiary) on the other hand, shall be on an arms-length basis and
on terms no less favorable to the Borrower or such Subsidiary than could have been obtained from a
third party who was not an officer, director, employee or Affiliate (other than the Borrower or any
Subsidiary); provided, that the foregoing provisions of this Section shall not (a) prohibit
the Borrower or any Subsidiary from declaring or paying any lawful dividend or distribution
otherwise permitted hereunder, (b) prohibit the Borrower or any Subsidiary from providing credit
support for its Subsidiaries (other than Project Finance Subsidiaries) as it deems appropriate in
the ordinary course of business, (c) prohibit the Borrower or any Subsidiary from engaging in a
transaction or transactions that are not on an arms-length basis or are not on terms as favorable
as could have been obtained from a third party, provided that such transaction or transactions
occurs within a related series of transactions, which, in the aggregate, are on an arms-length
basis and are on terms as favorable as could have been obtained from a third party, (d) prohibit
the Borrower or any Subsidiary from engaging in non-material transactions with any officer,
director, employee or Affiliate of the Borrower or any Subsidiary that are not on an arms-length
basis or are not on terms as favorable as could have been obtained from a third party but are in
the ordinary course of the Borrower’s or such Subsidiary’s business, so long as, in each case,
after giving effect thereto, no Default or Event of Default shall have occurred and be continuing,
(e) prohibit any agreements entered into in connection with the Borrower’s initial public offering
on February 5, 2007 or its acquisition on such date of 66% of the Equity Interests in Mont Belvieu
Caverns, L.P. (and its successor Mont Belvieu Caverns, LLC), Acadian Gas, LLC, Sabine Propylene
Pipeline L.P., Enterprise Lou-Tex Propylene Pipeline L.P. and South Texas NGL Pipelines, LLC,
provided, any right of first refusal with respect to the purchase of any assets of the Borrower or
any Subsidiary (other than a Project Finance Subsidiary) granted to any Affiliate shall by its
terms automatically terminate upon the occurrence of an Event of Default as described in Section
7(g), (h) or (i), (f) prohibit the Borrower or any Subsidiary from entering into any of the
Acquisition Documents or the agreements to be entered into in connection with the Equity
Offering as described in the Registration Statement and/or in the forms provided to the
Administrative Agent and Lenders on or prior to the date hereof, provided, any right of first
refusal with respect to the purchase of any assets of the Borrower or any Subsidiary (other than a
Project Finance Subsidiary) granted to any Affiliate shall by its terms automatically terminate
upon the occurrence of an Event of Default as described in Section 7(g), (h) or (i), or (g)
prohibit the Borrower or any Subsidiary from engaging in a transaction with an Affiliate if such
transaction has been approved by a majority of the General Partner’s independent directors.

ARTICLE VII

Events of Default

     If any of the following events (“Events of Default”) shall occur:

     (a) the Borrower shall fail to pay any principal of any Loan when and as the same shall become
due and payable, whether at the due date thereof or at a date fixed for prepayment thereof or
otherwise;

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     (b) the Borrower shall fail to pay any interest on any Loan or any fee or any other amount
(other than an amount referred to in clause (a) of this Article) payable under this Agreement, when
and as the same shall become due and payable, and such failure shall continue unremedied for a
period of five (5) Business Days;

     (c) any representation or warranty made or deemed made by or on behalf of the Borrower or any
Subsidiary of the Borrower in or in connection with this Agreement or any amendment or modification
hereof or waiver hereunder, or in any report, certificate, financial statement or other document
furnished pursuant to or in connection with this Agreement or any amendment or modification hereof
or waiver hereunder, shall prove to have been incorrect in any material respect when made or deemed
made and such materiality is continuing;

     (d) the Borrower shall fail to observe or perform any covenant, condition or agreement
contained in Section 5.02, 5.03 (with respect to the Borrower’s existence) or 5.07 or in
Article VI;

     (e) the Borrower shall fail to observe or perform any covenant, condition or agreement
contained in this Agreement (other than those specified in clause (a), (b) or (d) of this Article),
and such failure shall continue unremedied for a period of 30 days after written notice thereof
from the Administrative Agent to the Borrower (which notice will be given at the request of any
Lender);

     (f) the Borrower or any Material Subsidiary (other than Project Finance Subsidiaries) shall
(i) fail to pay (A) any principal of or premium or interest on any Material Indebtedness of the
Borrower or such Material Subsidiary (as the case may be), or (B) aggregate net obligations under
one or more Hedging Agreements (excluding amounts the validity of which are being contested in good
faith by appropriate proceedings, if necessary, and for which adequate reserves
with respect thereto are maintained on the books of the Borrower or such Material Subsidiary
(as the case may be)) in excess of $15,000,000, in each case when the same becomes due and payable
(whether by scheduled maturity, required prepayment, acceleration, demand or otherwise), and such
failure shall continue after the applicable grace period, if any, specified in the agreement or
instrument relating to such Material Indebtedness or such Hedging Agreements; or (ii) default in
the observance or performance of any covenant or obligation contained in any agreement or
instrument relating to any such Material Indebtedness that in substance is customarily considered a
default in loan documents (in each case, other than a failure to pay specified in clause (i) of
this subsection (f)) and such default shall continue after the applicable grace period, if any,
specified in such agreement or instrument, if the effect thereof is to accelerate the maturity of
such Material Indebtedness or require such Material Indebtedness to be prepaid prior to the stated
maturity thereof; for the avoidance of doubt the parties acknowledge and agree that any payment
required to be made under a guaranty of payment or collection described in clause (c) of the
definition of Indebtedness shall be due and payable at the time such payment is due and payable
under the terms of such guaranty (taking into account any applicable grace period) and such payment
shall be deemed not to have been accelerated or required to be prepaid prior to its stated maturity
as a result of the obligation guaranteed having become due;

     (g) an involuntary proceeding shall be commenced or an involuntary petition shall be filed
seeking (i) liquidation, reorganization or other relief in respect of the Borrower or any Material
Subsidiary (other than Project Finance Subsidiaries) or its debts, or of a substantial part of its
assets, under any Federal, state or foreign bankruptcy, insolvency, receivership or similar

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law
now or hereafter in effect or (ii) the appointment of a receiver, trustee, custodian, sequestrator,
conservator or similar official for the Borrower or any Material Subsidiary (other than Project
Finance Subsidiaries) or for a substantial part of its assets, and, in any such case, such
proceeding or petition shall continue undismissed for 60 days or an order or decree approving or
ordering any of the foregoing shall be entered;

     (h) the Borrower or any Material Subsidiary (other than Project Finance Subsidiaries) shall
(i) voluntarily commence any proceeding or file any petition seeking liquidation, reorganization or
other relief under any Federal, state or foreign bankruptcy, insolvency, receivership or similar
law now or hereafter in effect, (ii) consent to the institution of, or fail to contest in a timely
and appropriate manner, any proceeding or petition described in clause (h) of this Article,
(iii) apply for or consent to the appointment of a receiver, trustee, custodian, sequestrator,
conservator or similar official for the Borrower or any Material Subsidiary (other than Project
Finance Subsidiaries) or for a substantial part of its assets, (iv) file an answer admitting the
material allegations of a petition filed against it in any such proceeding, (v) make a general
assignment for the benefit of creditors or (vi) take any action for the purpose of effecting any of
the foregoing;

     (i) the Borrower or any Material Subsidiary (other than Project Finance Subsidiaries) shall
become unable, admit in writing its inability or fail generally to pay its debts as they become
due;

     (j) one or more judgments for the payment of money in an aggregate uninsured amount equal to
or greater than $15,000,000 shall be rendered against the Borrower or any Material Subsidiary
(other than Project Finance Subsidiaries) or any combination thereof and the same shall remain
undischarged for a period of 30 consecutive days during which execution shall not be effectively
stayed, or any action shall be legally taken by a judgment creditor to attach or
levy upon any assets of the Borrower or any such Material Subsidiary to enforce any such
judgment;

     (k) an ERISA Event shall have occurred that, when taken together with all other ERISA Events
that have occurred, could reasonably be expected to result in liability of the Borrower and its
Subsidiaries in an aggregate amount exceeding $15,000,000 for all periods;

     (l) the General Partner takes, suffers or permits to exist any of the events or conditions
referred to in clauses (g), (h) or (i) of this Article; or

     (m) a Change in Control shall occur;

then, and in every such event (other than an event with respect to the Borrower described in clause
(g) or (h) of this Article), and at any time thereafter during the continuance of such event, the
Administrative Agent at the request of the Required Lenders shall, by notice to the Borrower, take
either or both of the following actions, at the same or different times:  (i) terminate the
Commitments, and thereupon the Commitments shall terminate immediately, and (ii) declare the Loans
then outstanding to be due and payable in whole (or in part, in which case any principal not so
declared to be due and payable may thereafter be declared to be due and payable), and thereupon the
principal of the Loans so declared to be due and payable, together with accrued interest thereon
and all fees and other obligations of the Borrower accrued hereunder, shall become due and payable
immediately, without presentment, demand, protest or other notice of

45

 

any kind, all of which are hereby waived by the Borrower; and in case of any
event with respect to the Borrower described in clause (g) or (h) of this Article, the Commitments
shall automatically terminate and the principal of the Loans then outstanding, together
with accrued interest thereon and all fees and other obligations of the
Borrower accrued hereunder, shall automatically become due and payable, without presentment,
demand, protest or other notice of any kind, all of which are hereby waived by the Borrower.

ARTICLE VIII

The Administrative Agent

     Each of the Lenders hereby irrevocably appoints the Administrative Agent as its agent and
authorizes the Administrative Agent to take such actions on its behalf and to exercise such powers
as are delegated to the Administrative Agent by the terms hereof, together with such actions and
powers as are reasonably incidental thereto.

     The bank serving as the Administrative Agent hereunder shall have the same rights and powers
in its capacity as a Lender as any other Lender and may exercise the same as though it were not the
Administrative Agent, and such bank and its Affiliates may accept deposits from, lend money to and
generally engage in any kind of business with the Borrower or any Subsidiary or other Affiliate
thereof as if it were not the Administrative Agent hereunder.

     The Administrative Agent shall not have any duties or obligations except those expressly set
forth herein. Without limiting the generality of the foregoing, (a) the Administrative Agent shall
not be subject to any fiduciary or other implied duties, regardless of whether a Default has
occurred and is continuing, (b) the Administrative Agent shall not have any duty to take any
discretionary action or exercise any discretionary powers, except discretionary rights and powers
expressly contemplated hereby that the Administrative Agent is required to exercise in writing by
the Required Lenders (or such other number or percentage of the Lenders as shall be necessary under
the circumstances as provided in Section 9.02), and (c) except as expressly set forth herein, the
Administrative Agent shall not have any duty to disclose, and shall not be liable for the failure
to disclose, any information relating to the Borrower or any of its Subsidiaries that is
communicated to or obtained by the bank serving as Administrative Agent or any of its Affiliates in
any capacity. The Administrative Agent shall not be liable to the Lenders for any action taken or
not taken by it with the consent or at the request of the Required Lenders (or such other number or
percentage of the Lenders as shall be necessary under the circumstances as provided in
Section 9.02) or in the absence of its own gross negligence or willful misconduct. The
Administrative Agent shall be deemed not to have knowledge of any Default unless and until written
notice thereof is given to the Administrative Agent by the Borrower or a Lender, and the
Administrative Agent shall not be responsible for or have any duty to ascertain or inquire into
(i) any statement, warranty or representation made in or in connection with this Agreement,
(ii) the contents of any certificate, report or other document delivered hereunder or in connection
herewith, (iii) the performance or observance of any of the covenants, agreements or other terms or
conditions set forth herein, (iv) the validity, enforceability, effectiveness or genuineness of
this Agreement or any other agreement, instrument or document, or (v) the satisfaction of any
condition set forth in Article IV or elsewhere herein, other than to confirm receipt of items
expressly required to be delivered to the Administrative Agent.

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     The Administrative Agent shall be entitled to rely upon, and shall not incur any liability for
relying upon, any notice, request, certificate, consent, statement, instrument, document or other
writing believed by it to be genuine and to have been signed or sent by the proper Person. The
Administrative Agent also may rely upon any statement made to it orally or by telephone and
believed by it to be made by the proper Person, and shall not incur any liability for relying
thereon. The Administrative Agent may consult with legal counsel (who may be counsel for the
Borrower), independent accountants and other experts selected by it, and shall not be liable for
any action taken or not taken by it in accordance with the advice of any such counsel, accountants
or experts.

     The Administrative Agent may perform any and all its duties and exercise its rights and powers
by or through any one or more sub-agents appointed by the Administrative Agent. The Administrative
Agent and any such sub-agent may perform any and all its duties and exercise its rights and powers
through their respective Related Parties. The exculpatory provisions of the preceding paragraphs
shall apply to any such sub-agent and to the Related Parties of the Administrative Agent and any
such sub-agent, and shall apply to their respective activities in connection with the syndication
of the credit facilities provided for herein as well as activities as Administrative Agent.
Anything herein to the contrary notwithstanding, neither the Administrative Agent, the
Co-Syndication Agents, the Co-Documentation Agents, the Joint Lead Arrangers nor the Joint Book
Runners listed on the cover page hereof shall have any powers, duties or responsibilities under
this Agreement, the Notes or any documents related hereto or thereto, except in its capacity, as
applicable, as Administrative Agent or a Lender hereunder.

     Subject to the appointment and acceptance of a successor Administrative Agent as provided in
this paragraph, the Administrative Agent may resign at any time by notifying the Lenders and the
Borrower. Upon any such resignation, the Required Lenders shall have the right, with the
Borrower’s approval (which will not be unreasonably withheld), to appoint a successor. If no
successor shall have been so appointed by the Required Lenders and shall have accepted such
appointment within 30 days after the retiring Administrative Agent gives notice of its resignation,
then the retiring Administrative Agent may, with the Borrower’s approval (which will not be
unreasonably withheld or delayed, and the Borrower’s approval shall not be required if an Event of
Default has occurred which is continuing), on behalf of the Lenders, appoint a successor
Administrative Agent which shall be a bank with an office in New York, New York, or an Affiliate of
any such bank and such bank, or its Affiliate, as applicable, shall have capital and surplus equal
to or greater than $500,000,000. Upon the acceptance of its appointment as Administrative Agent
hereunder by a successor, such successor shall succeed to and become vested with all the rights,
powers, privileges and duties of the retiring Administrative Agent, and the retiring Administrative
Agent shall be discharged from its duties and obligations hereunder. The fees payable by the
Borrower to a successor Administrative Agent shall be the same as those payable to its predecessor
unless otherwise agreed between the Borrower and such successor. After the Administrative Agent’s
resignation hereunder, the provisions of this Article and Section 9.03 shall continue in effect for
the benefit of such retiring Administrative Agent, its sub-agents and their respective Related
Parties in respect of any actions taken or omitted to be taken by any of them while it was acting
as Administrative Agent.

     Each Lender acknowledges that it has, independently and without reliance upon the
Administrative Agent or any other Lender and based on such documents and information as it has
deemed appropriate, made its own credit analysis and decision to enter into this Agreement.

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Each
Lender also acknowledges that it will, independently and without reliance upon the Administrative
Agent or any other Lender and based on such documents and information as it shall from time to time
deem appropriate, continue to make its own decisions in taking or not taking action under or based
upon this Agreement, any related agreement or any document furnished hereunder or thereunder.

ARTICLE IX

Miscellaneous

     SECTION 9.01. Notices. Except in the case of notices and other communications
expressly permitted to be given by telephone, and except as provided in Section 9.01(d), all
notices and other communications provided for herein shall be in writing and shall be delivered by
hand or overnight courier service, mailed by certified or registered mail or sent by telecopy, as
follows:

     (a) if to the Borrower, to it at 1100 Louisiana Street, 10th Floor, Houston, Texas
77002 (for delivery), Attention of Treasurer; P. O. Box 4324, Houston Texas 77210 (for mail)
(Telecopy No. 713/381-8200);

     (b) if to the Administrative Agent, to Wachovia Bank, National Association, 201 South College
Street, CP23, Charlotte, North Carolina 28288-0608, Attention of Syndication Agency Services
(Telecopy No. 704/383-0288), with a copy to Wachovia Securities, Inc., 1001 Fannin, Suite 2255,
Houston, Texas 77002, Attention of Russell T. Clingman (Telecopy No. 713/650-6354); and

     (c) if to any other Lender, to it at its address (or telecopy number) of record with the
Administrative Agent, which Administrative Agent shall provide to the Borrower or any Lender upon
request from time to time.

     (d) The Borrower will have the option to provide to the Administrative Agent all information,
documents and other materials that it is obligated to furnish to the Administrative Agent pursuant
to this Agreement or any other document executed in connection herewith, including, without
limitation, all notices, requests, financial statements, financial and other reports, certificates
and other information materials, but excluding any such communication that (i) relates to a request
for a new, or a conversion of an existing, Borrowing or other extension of credit (including any
election of an interest rate or Interest Period relating thereto), (ii) relates to the payment of
any principal or other amount due under this Agreement prior to the scheduled date therefor, (iii)
provides notice of any Default or Event of Default, or (iv) other than the requirements set forth
in Sections 3.04(a), 4.01(i) and 5.01, is required to be delivered to satisfy any condition
precedent to the effectiveness of this Agreement and/or any Borrowing or any other extension of
credit hereunder (all such non-excluded communications being referred to herein collectively as
“Communications”), by transmitting the Communications in an electronic/soft medium in a
format acceptable to the Administrative Agent. The Borrower further agrees that the Administrative
Agent may make the Communications available to the Lenders by posting the Communications on
SyndTrak or a substantially similar electronic transmission system (the “Platform”). The
Borrower acknowledges that the distribution of material through an electronic medium is not
necessarily secure and that there are confidentiality and other risks associated with such
distribution. The Platform is provided “as is” and “as

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available”. The Agent Parties (as
defined below) do not warrant the accuracy or completeness of the Communications, or the adequacy
of the Platform and expressly disclaim liability for errors or omissions in the Communications. No
warranty of any kind, express, implied or statutory, including, without limitation, any warranty of
merchantability, fitness for a particular purpose, non-infringement of third party rights or
freedom from viruses or other code defects, is made by the Agent Parties in connection with the
Communications or the Platform. In no event shall the Administrative Agent or any of its
affiliates or any of their respective officers, directors, employees, agents, advisors or
representatives (collectively, “Agent Parties”) have any liability to the Borrower, any Lender or
any other Person or entity for damages of any kind, including, without limitation, direct or
indirect, special, incidental or consequential damages, losses or expenses (whether in tort,
contract or otherwise) arising out of the Borrower’s or the Administrative Agent’s transmission of
Communications through the internet, except to the extent the liability of any Agent Party is found
in a final non-appealable judgment by a court of competent jurisdiction to have resulted primarily
from such Agent Party’s gross negligence or willful misconduct. The Administrative Agent
agrees that the receipt of the Communications by the Administrative Agent at its e-mail address as
specified by the Administrative Agent from time to time shall constitute effective delivery of the
Communications to the Administrative Agent for purposes of this Agreement and any other documents
executed in connection herewith. Each of the Lenders agrees that notice to it (as
provided in the next sentence) specifying that the Communications have been posted to the
Platform shall constitute effective delivery of the Communications to such Lender for purposes of
this Agreement and any other documents executed in connection herewith. Each of the Lenders agrees
to notify the Administrative Agent in writing (including by electronic communication) from time to
time of such Lender’s e-mail address to which the foregoing notice may be sent by electronic
transmission, and (ii) that the foregoing notice may be sent to such e-mail address. Nothing
herein shall prejudice the right of the Administrative Agent or any Lender to give any notice or
other communication pursuant hereto or any other document executed in connection herewith in any
other manner specified herein or therein.

Any party hereto may change its address or telecopy number for notices and other communications
hereunder by notice to the other parties hereto. All notices and other communications given to any
party hereto in accordance with the provisions of this Agreement shall be deemed to have been given
on the date of receipt.

     SECTION 9.02. Waivers; Amendments. (a)  No failure or delay by the Administrative
Agent or any Lender in exercising any right or power hereunder shall operate as a waiver thereof,
nor shall any single or partial exercise of any such right or power, or any abandonment or
discontinuance of steps to enforce such a right or power, preclude any other or further exercise
thereof or the exercise of any other right or power. The rights and remedies of the Administrative
Agent and the Lenders hereunder are cumulative and are not exclusive of any rights or remedies that
they would otherwise have. No waiver of any provision of this Agreement or consent to any
departure by the Borrower therefrom shall in any event be effective unless the same shall be
permitted by paragraph (b) of this Section, and then such waiver or consent shall be effective only
in the specific instance and for the purpose for which given. Without limiting the generality of
the foregoing, the making of a Loan shall not be construed as a waiver of any Default, regardless
of whether the Administrative Agent or any Lender may have had notice or knowledge of such Default
at the time.

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     (b) Neither this Agreement nor any provision hereof may be waived, amended or modified except
pursuant to an agreement or agreements in writing entered into by the Borrower and the Required
Lenders or by the Borrower and the Administrative Agent with the consent of the Required Lenders;
provided that no such agreement shall (i) increase or extend the Commitment of any
Lender without the written consent of such Lender; provided, however, that the
references to July 18, 2008 in the definition of “Effective Date” in Section 1.01, in Section
2.09(a) and in the last sentence of Section 4.01 may be extended with the consent of Lenders
holding not less than 75% of the total Commitments at such time, (ii) reduce the principal amount
of any Loan or reduce the rate of interest thereon, or reduce any fees payable hereunder, without
the written consent of each Lender affected thereby, (iii) postpone the scheduled date of payment
of the principal amount of any Loan, or any interest thereon, or any fees payable hereunder, or
reduce the amount of, waive or excuse any such payment, or postpone the scheduled date of
expiration of any Commitment, without the written consent of each Lender affected thereby, (iv)
change Section 2.18(b) or (c) in a manner that would alter the pro rata sharing of payments
required thereby, without the written consent of each Lender, or (v) change any of the provisions
of this Section or the definition of “Required Lenders” or any other provision hereof specifying
the number or percentage of Lenders required to waive, amend or modify any rights hereunder or make
any determination or grant any consent hereunder, without the written consent of each Lender;
provided further that no such agreement shall amend,
modify or otherwise affect the rights or duties of the Administrative Agent hereunder without
the prior written consent of the Administrative Agent.

     SECTION 9.03. Expenses; Indemnity; Damage Waiver. (a)  The Borrower shall pay
(i) all reasonable out-of-pocket expenses incurred by the Administrative Agent and its Affiliates,
including the reasonable fees, charges and disbursements of one law firm as counsel for the
Administrative Agent, in connection with the syndication (prior to the Effective Date) of the
credit facilities provided for herein, the preparation and administration of this Agreement or any
amendments, modifications or waivers of the provisions hereof (whether or not the transactions
contemplated hereby or thereby shall be consummated), and (ii) all out-of-pocket expenses
reasonably incurred during the existence of an Event of Default by the Administrative Agent or any
Lender, including the fees, charges and disbursements of any counsel for the Administrative Agent
or any Lender, in connection with the enforcement or protection of its rights in connection with
this Agreement, including its rights under this Section, or in connection with the Loans made
hereunder, including all such out-of-pocket expenses incurred during any workout, restructuring or
negotiations in respect of such Loans.

     (b) The Borrower shall indemnify the Administrative Agent and each Lender, and each Related
Party of any of the foregoing Persons (each such Person being called an “Indemnitee”)
against, and hold each Indemnitee harmless from, any and all losses, claims, damages, liabilities
and related expenses, including the fees, charges and disbursements of any counsel for any
Indemnitee, incurred by or asserted against any Indemnitee arising out of, in connection with, or
as a result of (i) the execution or delivery of this Agreement or any agreement or instrument
contemplated hereby, the performance by the parties hereto of their respective obligations
hereunder or the consummation of the Transactions or any other transactions contemplated hereby,
(ii) any Loan or the use of the proceeds therefrom, (iii) any actual or alleged presence or release
of Hazardous Materials on or from any property owned or operated by the Borrower or any of its
Subsidiaries, or any Environmental Liability related in any way to the Borrower or any of its
Subsidiaries, or (iv) any actual or prospective claim,

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litigation, investigation or proceeding
relating to any of the foregoing, whether based on contract, tort or any other theory and
regardless of whether any Indemnitee is a party thereto; provided that such
indemnity shall not, as to any Indemnitee, be available (x) to the extent that such losses, claims,
damages, liabilities or related expenses resulted from the gross negligence or willful misconduct
of such Indemnitee or any Related Party of such Indemnitee, or (y) in connection with disputes
among or between the Administrative Agent, Lenders and/or their respective Related Parties.

     (c) To the extent that the Borrower fails to pay any amount required to be paid by it to the
Administrative Agent under paragraph (a) or (b) of this Section, each Lender severally agrees to
pay to the Administrative Agent such Lender’s Applicable Percentage (determined as of the time that
the applicable unreimbursed expense or indemnity payment is sought) of such unpaid amount;
provided that the unreimbursed expense or indemnified loss, claim, damage,
liability or related expense, as the case may be, was incurred by or asserted against the
Administrative Agent in its capacity as such.

     (d) To the extent permitted by applicable law, the Borrower shall not assert, and hereby
waives, any claim against any Indemnitee, on any theory of liability, for punitive damages (as
opposed to direct or actual damages) arising out of, in connection with, or as a result
of, this Agreement or any agreement or instrument contemplated hereby, the Transactions, any
Loan or the use of the proceeds thereof.

     (e) All amounts due under this Section shall be payable not later than 30 days after written
demand therefor, such demand to be in reasonable detail setting forth the basis for and method of
calculation of such amounts.

     SECTION 9.04. Successors and Assigns. (a) The provisions of this Agreement shall be
binding upon and inure to the benefit of the parties hereto and their respective successors and
assigns permitted hereby, except that the Borrower may not assign or otherwise transfer any of its
rights or obligations hereunder without the prior written consent of each Lender (and any attempted
assignment or transfer by the Borrower without such consent shall be null and void). Nothing in
this Agreement, expressed or implied, shall be construed to confer upon any Person (other than the
parties hereto, their respective successors and assigns permitted hereby and, to the extent
expressly contemplated hereby, the Related Parties of each of the Administrative Agent and the
Lenders) any legal or equitable right, remedy or claim under or by reason of this Agreement.

     (b) Any Lender may assign to one or more assignees (other than the Borrower or an Affiliate of
the Borrower) all or a portion of its rights and obligations under this Agreement (including all or
a portion of the Loans owing to it, or, prior to the Effective Date, all or a portion of its
Commitment); provided that (i) except in the case of an assignment to a Lender (or an
Affiliate of a Lender), each of the Borrower and the Administrative Agent must give their prior
written consent to such assignment (which consent shall not be unreasonably withheld or delayed),
(ii) except in the case of an assignment to a Lender or an Affiliate of a Lender or an assignment
of the entire remaining amount of the assigning Lender’s Loans (or, prior to the Effective Date,
such assigning Lender’s Commitment), the amount of the Loans (or Commitment) of the assigning
Lender subject to each such assignment (determined as of the date the Assignment and Acceptance
with respect to such assignment is delivered to the Administrative Agent) shall not be less than
$5,000,000 unless each of the Borrower and the

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Administrative Agent otherwise consent, (iii) each
partial assignment shall result in the assignor retaining Loans (or, prior to the Effective Date, a
Commitment) of not less than $5,000,000 and shall be made as an assignment of a proportionate part
of all the assigning Lender’s rights and obligations under this Agreement, (iv) the parties (other
than the Borrower) to each assignment shall execute and deliver to the Administrative Agent an
Assignment and Acceptance, together with a processing and recordation fee of $3,500, (v) the
assignee, if it shall not be a Lender, shall deliver to the Administrative Agent an Administrative
Questionnaire and (vi) no assignment to a foreign bank shall be made hereunder unless, at the time
of such assignment, there is no withholding tax applicable with respect to such foreign bank for
which the Borrower would be or become responsible under Section 2.17; and provided further
that any consent of the Borrower otherwise required under this paragraph shall not be required if
an Event of Default has occurred and is continuing. Subject to acceptance and recording thereof
pursuant to paragraph (d) of this Section, from and after the effective date specified in each
Assignment and Acceptance the assignee thereunder shall be a party hereto and, to the extent of the
interest assigned by such Assignment and Acceptance, have the rights and obligations of a Lender
under this Agreement, and the assigning Lender thereunder shall, to the extent of the interest
assigned by such Assignment and Acceptance, be released from its obligations under this Agreement
(and, in the case of an Assignment and Acceptance covering all of the assigning Lender’s rights and
obligations under this Agreement, such Lender shall cease to be a party hereto but shall continue
to be entitled to the benefits of Sections 2.15, 2.16, 2.17 and 9.03 as to matters occurring
on or prior to date of assignment). Any assignment or transfer by a Lender of rights or
obligations under this Agreement that does not comply with this paragraph shall be treated for
purposes of this Agreement as a sale by such Lender of a participation in such rights and
obligations in accordance with paragraph (e) of this Section.

     (c) The Administrative Agent, acting for this purpose as an agent of the Borrower, shall
maintain at one of its offices in The City of New York, the address of which shall be made
available to any party to this Agreement upon request: a copy of each Assignment and Acceptance
delivered to it and a register for the recordation of the names and addresses of the Lenders, and
the Commitment of, and principal amount of the Loans owing to, each Lender pursuant to the terms
hereof from time to time (the “Register”). The entries in the Register shall be conclusive
absent manifest error, and the Borrower, the Administrative Agent and the Lenders may treat each
Person whose name is recorded in the Register pursuant to the terms hereof as a Lender hereunder
for all purposes of this Agreement, notwithstanding notice to the contrary. The Register shall be
available for inspection by the Borrower and any Lender, at any reasonable time and from time to
time upon reasonable prior notice.

     (d) Upon its receipt of a duly completed Assignment and Acceptance executed by an assigning
Lender and an assignee, the assignee’s completed Administrative Questionnaire (unless the assignee
shall already be a Lender hereunder), the processing and recordation fee referred to in
paragraph (b) of this Section and any written consent to such assignment required by paragraph (b)
of this Section, the Administrative Agent shall accept such Assignment and Acceptance and record
the information contained therein in the Register. No assignment shall be effective for purposes
of this Agreement unless it has been recorded in the Register as provided in this paragraph.

     (e) Any Lender may, without the consent of the Borrower or the Administrative Agent, sell
participations to one or more banks or other entities (a “Participant”) in all or a

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portion
of such Lender’s rights and obligations under this Agreement (including all or a portion of its
Commitment and the Loans owing to it); provided that (i) such Lender’s obligations
under this Agreement shall remain unchanged, (ii) such Lender shall remain solely responsible to
the other parties hereto for the performance of such obligations and (iii) the Borrower, the
Administrative Agent and the other Lenders shall continue to deal solely and directly with such
Lender in connection with such Lender’s rights and obligations under this Agreement. Any agreement
or instrument pursuant to which a Lender sells such a participation shall provide that such Lender
shall retain the sole right to enforce this Agreement and to approve any amendment, modification or
waiver of any provision of this Agreement; provided that such agreement or
instrument may provide that such Lender will not, without the consent of the Participant, agree to
any amendment, modification or waiver described in the first proviso to Section 9.02(b) that
affects such Participant.

     (f) A Participant shall not be entitled to receive any greater payment under Section 2.15 or
2.17 than the applicable Lender would have been entitled to receive with respect to the
participation sold to such Participant, unless the sale of the participation to such Participant is
made with the Borrower’s prior written consent. A Participant that would be a Foreign Lender if it
were a Lender shall not be entitled to the benefits of Section 2.17 unless the Borrower is notified
of the participation sold to such Participant and such Participant agrees, for the benefit of the
Borrower, to comply with Section 2.17(e) as though it were a Lender and has zero withholding at the
time of participation.

     (g) Any Lender may at any time pledge or assign a security interest in all or any portion of
its rights under this Agreement to secure obligations of such Lender to a Federal Reserve Bank, and
this Section shall not apply to any such pledge or assignment of a security interest;
provided that no such pledge or assignment of a security interest shall release a
Lender from any of its obligations hereunder or substitute any such pledgee or assignee for such
Lender as a party hereto.

     SECTION 9.05. Survival. All covenants, agreements, representations and warranties
made by the Borrower herein and in the certificates or other instruments delivered in connection
with or pursuant to this Agreement shall be considered to have been relied upon by the other
parties hereto and shall survive the execution and delivery of this Agreement and the making of any
Loans, regardless of any investigation made by any such other party or on its behalf and
notwithstanding that the Administrative Agent or any Lender may have had notice or knowledge of any
Default or incorrect representation or warranty at the time any credit is extended hereunder, and
shall continue in full force and effect as long as the principal of or any accrued interest on any
Loan or any fee or any other amount payable under this Agreement is outstanding and unpaid and so
long as the Commitments have not expired or terminated. The provisions of Sections 2.15, 2.16,
2.17 and 9.03 and Article VIII shall survive and remain in full force and effect regardless of the
consummation of the transactions contemplated hereby, the repayment of the Loans, the expiration or
termination of the Commitments or the termination of this Agreement or any provision hereof.

     SECTION 9.06. Counterparts; Integration; Effectiveness. This Agreement may be
executed in counterparts (and by different parties hereto on different counterparts), each of which
shall constitute an original, but all of which when taken together shall constitute a single
contract. This Agreement and any separate letter agreements with respect to fees payable to the
Administrative Agent constitute the entire contract among the parties relating to the subject

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matter hereof and supersede any and all previous agreements and understandings, oral or written,
relating to the subject matter hereof. This Agreement shall become effective on the Effective
Date, and thereafter shall be binding upon and inure to the benefit of the parties hereto and their
respective successors and assigns. Delivery of an executed counterpart of a signature page of this
Agreement by telecopy shall be effective as delivery of a manually executed counterpart of this
Agreement.

     SECTION 9.07. Severability. Any provision of this Agreement held to be invalid,
illegal or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the
extent of such invalidity, illegality or unenforceability without affecting the validity, legality
and enforceability of the remaining provisions hereof; and the invalidity of a particular provision
in a particular jurisdiction shall not invalidate such provision in any other jurisdiction.

     SECTION 9.08. Right of Setoff. If an Event of Default shall have occurred and be
continuing and the Required Lenders have directed the Administrative Agent to accelerate under
Article VII, each Lender and each of its Affiliates is hereby authorized at any time and from time
to time, to the fullest extent permitted by law, to set off and apply any and all deposits (general
or special, time or demand, provisional or final) at any time held and other obligations at any
time owing by such Lender or Affiliate to or for the credit or the account of the Borrower against
any of and all the obligations of the Borrower now or hereafter existing under this Agreement held
by such Lender, irrespective of
whether or not such Lender shall have made any demand under this Agreement and although such
obligations may be unmatured. The rights of each Lender under this Section are in addition to
other rights and remedies (including other rights of setoff) which such Lender may have.

     SECTION 9.09. Governing Law; Jurisdiction; Consent to Service of Process. (a)  This
Agreement shall be construed in accordance with and governed by the law of the State of New York.

     (b) The Borrower hereby irrevocably and unconditionally submits, for itself and its property,
to the nonexclusive jurisdiction of the Supreme Court of the State of New York sitting in New York
County and of the United States District Court of the Southern District of New York, and any
appellate court from any thereof, in any action or proceeding arising out of or relating to this
Agreement, or for recognition or enforcement of any judgment, and each of the parties hereto hereby
irrevocably and unconditionally agrees that all claims in respect of any such action or proceeding
may be heard and determined in such New York State or, to the extent permitted by law, in such
Federal court. Each of the parties hereto agrees that a final judgment in any such action or
proceeding shall be conclusive and may be enforced in other jurisdictions by suit on the judgment
or in any other manner provided by law. Nothing in this Agreement shall affect any right that the
Administrative Agent or any Lender may otherwise have to bring any action or proceeding relating to
this Agreement against the Borrower or its properties in the courts of any jurisdiction.

     (c) The Borrower hereby irrevocably and unconditionally waives, to the fullest extent it may
legally and effectively do so, any objection which it may now or hereafter have to the laying of
venue of any suit, action or proceeding arising out of or relating to this Agreement in any court
referred to in paragraph (b) of this Section. Each of the parties hereto hereby irrevocably
waives, to the fullest extent permitted by law, the defense of an inconvenient forum to the
maintenance of such action or proceeding in any such court.

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     (d) Each party to this Agreement irrevocably consents to service of process in the manner
provided for notices in Section 9.01. Nothing in this Agreement will affect the right of any party
to this Agreement to serve process in any other manner permitted by law.

     SECTION 9.10. WAIVER OF JURY TRIAL. EACH PARTY HERETO HEREBY WAIVES, TO THE FULLEST
EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN ANY LEGAL
PROCEEDING DIRECTLY OR INDIRECTLY ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS
CONTEMPLATED HEREBY (WHETHER BASED ON CONTRACT, TORT OR ANY OTHER THEORY). EACH PARTY HERETO
(A) CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED,
EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO
ENFORCE THE FOREGOING WAIVER AND (B) ACKNOWLEDGES THAT IT AND THE OTHER PARTIES HERETO HAVE BEEN
INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS
IN THIS SECTION.

     SECTION 9.11. Headings. Article and Section headings and the Table of Contents used
herein are for convenience of reference
only, are not part of this Agreement and shall not affect the construction of, or be taken
into consideration in interpreting, this Agreement.

     SECTION 9.12. Confidentiality. Each of the Administrative Agent, the Co-Syndication
Agents, the Co-Documentation Agents, and the Lenders agrees to maintain the confidentiality of the
Information (as defined below), except that Information may be disclosed (a) to its and its
Affiliates’ directors, officers, employees and agents, including accountants, legal counsel and
other advisors (it being understood that the Persons to whom such disclosure is made will be
informed of the confidential nature of such Information and instructed to keep such Information
confidential), (b) to the extent requested by any regulatory authority, (c) to the extent required
by applicable laws or regulations or by any subpoena or similar legal process, (d) to any other
party to this Agreement, (e) in connection with the exercise of any remedies hereunder or any suit,
action or proceeding relating to this Agreement or the enforcement of rights hereunder, (f) subject
to an agreement containing provisions substantially the same as those of this Section, to any
assignee of or Participant in, or any prospective assignee of or Participant in, any of its rights
or obligations under this Agreement, (g) with the consent of the Borrower or (h) to the extent such
Information (i) becomes publicly available other than as a result of a breach of this Section or
(ii) becomes available to the Administrative Agent, Co-Syndication Agents, the Co-Documentation
Agents or any Lender on a nonconfidential basis from a source other than the Borrower and its
Related Parties. For the purposes of this Section, “Information” means all information received
from the Borrower relating to the Borrower or its business, other than any such information that is
available to the Administrative Agent or any Lender on a nonconfidential basis prior to disclosure
by the Borrower.

     SECTION 9.13. Interest Rate Limitation. Notwithstanding anything herein to the
contrary, if at any time the interest rate applicable to any Loan, together with all fees, charges
and other amounts which are treated as interest on such Loan under applicable law (collectively the
“Charges”), shall exceed the maximum lawful rate (the “Maximum Rate”) which may be
contracted for, charged, taken, received or reserved by the Lender holding such Loan in accordance
with applicable law, the rate of interest payable in respect of such Loan hereunder, together with
all Charges payable in respect thereof, shall be limited to the Maximum Rate and,

55

 

to the extent
lawful, the interest and Charges that would have been payable in respect of such Loan but were not
payable as a result of the operation of this Section shall be cumulated and the interest and
Charges payable to such Lender in respect of other Loans or periods shall be increased (but not
above the Maximum Rate therefor) until such cumulated amount, together (to the extent lawful) with
interest thereon at the Federal Funds Effective Rate to the date of repayment, shall have been
received by such Lender.

     SECTION 9.14. Liability of General Partner. It is hereby understood and agreed that
the General Partner shall have no personal liability, as general partner or otherwise, for the
payment of any amount owing or to be owing hereunder.

     SECTION 9.15. USA Patriot Act Notice. Each Lender and Agent (for itself and not on
behalf of any Lender) hereby notifies Borrower that pursuant to the requirements of the USA Patriot
Act (Title III of Pub. L. 107-56 (signed into law October 26, 2003)) (the “Act”), it is
required to obtain, verify and record information that identifies Borrower, which information
includes the name and address of Borrower and other information that will allow such Lender or the
Agent, as applicable, to
identify Borrower in accordance with the Act. The Borrower shall, following a request by the
Agent or any Lender, provide all documentation and other information that the Agent or such Lender
reasonably requests in order to comply with its ongoing obligations under applicable “know your
customer” and anti-money laundering rules and regulations, including the Act.

[Signature Pages to Follow]

56

 

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

	 	 	 	 	 
	 	DUNCAN ENERGY PARTNERS L.P.

 	 
	 	By:  	DEP Holdings, LLC, General Partner
 	 

	 	 	 	 	 
	 	By:  	                 //s// Bryan F. Bulawa
 	 
	 	 	Name:  	Bryan F. Bulawa 	 
	 	 	Title:  	Vice President and Treasurer 	 

S-1

 

	 	 	 	 	 
	 	WACHOVIA BANK, N.A.,

Individually and as Administrative Agent

 	 
	 	By:  	//s// Shannon Townsend
 	 
	 	 	Name:  	Shannon Townsend 	 
	 	 	Title:  	Director 	 

S-2

 

	 	 	 	 	 

	 	 	 	 	 
	 	SUNTRUST BANK, Individually and as Co-Syndication Agent

 	 
	 	By:  	//s// Yann Pirio
 	 
	 	 	Name:  	Yann Pirio 	 
	 	 	Title:  	Director 	 

S-3

 

	 	 	 	 	 

	 	 	 	 	 
	 	THE BANK OF NOVA SCOTIA,

Individually and as Co-Syndication Agent

 	 
	 	By:  	//s// J. Forward
 	 
	 	 	Name:  	J. Forward 	 
	 	 	Title:  	Managing Director 	 

S-4

 

	 	 	 	 	 

	 	 	 	 	 
	 	MIZUHO CORPORATE BANK, LTD.,

Individually and as Co-Documentation Agent

 	 
	 	By:  	Leon Mo
 	 
	 	 	Name:  	Leon Mo 	 
	 	 	Title:  	Senior Vice President 	 

S-5

 

	 	 	 	 	 

	 	 	 	 	 
	 	THE ROYAL BANK OF SCOTLAND PLC,

Individually and as Co-Documentation Agent

 	 
	 	By:  	//s// Brian Williams
 	 
	 	 	Name:  	Brian Williams 	 
	 	 	Title:  	Vice President 	 
	 

S-6

 

	 	 	 	 	 
	 	BANK OF AMERICA, N.A., a Lender

 	 
	 	By:  	//s// Gabe Gomez
 	 
	 	 	Name:  	Gabe Gomez 	 
	 	 	Title:  	Vice President 	 

S-7

 

	 	 	 	 	 

	 	 	 	 	 
	 	BARCLAYS BANK PLC, a Lender

 	 
	 	By:  	//s// Nicholas Bell
 	 
	 	 	Name:  	Nicholas Bell 	 
	 	 	Title:  	Director 	 

S-8

 

	 	 	 	 	 

	 	 	 	 	 
	 	BNP PARIBAS, a Lender

 	 
	 	By:  	//s// Gregory E. George
 	 
	 	 	Name:  	Gregory E. George 	 
	 	 	Title:  	Managing Director 	 

	 	 	 	 	 
	 	By:  	                       //s// Greg Smothers
 	 
	 	 	Name:  	Greg Smothers 	 
	 	 	Title:  	Director 	 

S-9

 

	 	 	 	 	 

	 	 	 	 	 
	 	THE BANK OF TOKYO-MITSUBISHI UFJ,

LTD., a Lender

 	 
	 	By:  	//s// Linda Terry
 	 
	 	 	Name:  	Linda Terry 	 
	 	 	Title:  	Vice President & Manager 	 

S-10

 

	 	 	 	 	 

	 	 	 	 	 
	 	CITIBANK, N.A., a Lender

 	 
	 	By:  	//s// Ashish Sethi
 	 
	 	 	Name:  	Ashish Sethi 	 
	 	 	Title:  	Vice President 	 

S-11

 

	 	 	 	 	 

	 	 	 	 	 
	 	DNB NOR BANK ASA, a Lender

 	 
	 	By:  	//s// Thomas Tangen
 	 
	 	 	Name:  	Thomas Tangen 	 
	 	 	Title:  	First Vice President 	 

	 	 	 	 	 
	 	By:  	                     //s// Asa Jemseby Rodgers
 	 
	 	 	Name:  	Asa Jemseby Rodgers 	 
	 	 	Title:  	Vice President 	 
	 

	 	 	 	 	 

S-12

 

	 	 	 	 	 
	 	LEHMAN BROTHERS COMMERCIAL BANK, a Lender

 	 
	 	By:  	//s//  Brian McNany
 	 
	 	 	Name:  	Brian McNany 	 
	 	 	Title:  	Authorized Signatory 	 

S-13

 

	 	 	 	 	 

	 	 	 	 	 
	 	MORGAN STANLEY BANK, a Lender

 	 
	 	By:  	//s// Daniel Twenge
 	 
	 	 	Name:  	Daniel Twenge 	 
	 	 	Title:  	Authorized Signatory 	 

S-14

 

	 	 	 	 	 

	 	 	 	 	 
	 	UBS LOAN FINANCE LLC, a Lender

 	 
	 	By:  	//s// Richard L. Tavrow
 	 
	 	 	Name:  	Richard L. Tavrow 	 
	 	 	Title:  	Director 	 

	 	 	 	 	 
	 	By:  	                      //s// David B. Julie
 	 
	 	 	Name:  	David B. Julie 	 
	 	 	Title:  	Associate Director 	 
	 

S-15

 

	 	 	 	 	 
	 	WELLS FARGO BANK, N.A., a Lender

 	 
	 	By:  	//s// Terence D’Souza
 	 
	 	 	Name:  	Terence D’Souza 	 
	 	 	Title:  	Vice President 	 

S-16

 

	 	 	 	 	 

	 	 	 	 	 
	 	GOLDMAN SACHS CREDIT PARTNERS L.P.,

a Lender

 	 
	 	By:  	//s// Mark Walton
 	 
	 	 	Name:  	Mark Walton 	 
	 	 	Title:  	Authorized Signatory 	 

S-17

 

	 	 	 	 	 

	 	 	 	 	 
	 	JPMORGAN CHASE BANK, N.A., a Lender

 	 
	 	By:  	//s// Jeanie C. Gonzalez
 	 
	 	 	Name:  	Jeanie C. Gonzalez 	 
	 	 	Title:  	Senior Vice President 	 

S-18

 

	 	 	 	 	 

SCHEDULE 2.01

COMMITMENTS

	 	 	 	 	 
	Lender	 	Commitment
	Wachovia Bank, N.A.
	 	$	20,500,000.00	 
	SunTrust Bank
	 	$	20,500,000.00	 
	The Bank of Nova Scotia
	 	$	20,500,000.00	 
	Bank of America, N.A.
	 	$	17,750,000.00	 
	Barclays Bank plc
	 	$	17,750,000.00	 
	BNP Paribas
	 	$	17,750,000.00	 
	Bank of Tokyo-Mitsubishi UFJ, Ltd.
	 	$	17,750,000.00	 
	Citibank, N.A.
	 	$	17,750,000.00	 
	DnB NOR Bank ASA
	 	$	17,750,000.00	 
	Lehman Brothers Commercial Bank
	 	$	17,750,000.00	 
	Mizuho Corporate Bank, Ltd.
	 	$	17,750,000.00	 
	Morgan Stanley Bank
	 	$	17,750,000.00	 
	The Royal Bank of Scotland plc
	 	$	17,750,000.00	 
	UBS Loan Finance LLC
	 	$	17,750,000.00	 
	Wells Fargo Bank, N.A.
	 	$	17,750,000.00	 
	Goldman Sachs Credit Partners L.P.
	 	$	15,500,000.00	 
	JPMorgan Chase Bank, N.A.
	 	$	10,000,000.00	 
	 
	 	 	 	 
	TOTAL
	 	$	300,000,000.00	 

 

 

Schedule 3.05

Disclosed Matters

(a) None.

(b) None.

 

 

Schedule 3.11

Subsidiaries

	 	 	 	 	 
	 	 	Jurisdiction of	 	Effective Ownership by the Borrower or a
	Name of Subsidiary	 	Formation	 	Subsidiary
	Acadian Gas, LLC

	 	Delaware
	 	DEP Operating Partnership, L.P. – 66%

Enterprise Products Operating LLC– 34%
	 
	 	 	 	 
	Acadian Acquisition, LLC

	 	Delaware
	 	Acadian Gas, LLC – 100%
	 
	 	 	 	 
	Acadian Consulting LLC

	 	Delaware
	 	Acadian Gas, LLC – 100%
	 
	 	 	 	 
	Acadian Gas Pipeline System

	 	Texas
	 	MCN Acadian Gas Pipeline, LLC – 50%

TXO-Acadian Gas Pipeline, LLC – 50%
	 
	 	 	 	 
	Calcasieu Gas Gathering System

	 	Texas
	 	MCN Acadian Gas Pipeline, LLC – 50%

TXO-Acadian Gas Pipeline, LLC – 50%
	 
	 	 	 	 
	Cypress Gas Marketing, LLC

	 	Delaware
	 	Acadian Gas, LLC – 100%
	 
	 	 	 	 
	Cypress Gas Pipeline, LLC

	 	Delaware
	 	Acadian Gas, LLC – 100%
	 
	 	 	 	 
	DEP OLPGP, LLC

	 	Delaware
	 	Duncan Energy Partners L.P. – 100%
	 
	 	 	 	 
	DEP Operating Partnership, L.P.

	 	Delaware
	 	DEP OLPGP, LLC – 0.001%

Duncan Energy Partners L.P. – 99.999%
	 
	 	 	 	 
	Enterprise GC, L.P.

	 	 	 	DEP Operating Partnership, L.P. -66%

Enterprise Products Operating LLC– 34%
	 
	 	 	 	 
	Enterprise Intrastate L.P.

	 	 	 	DEP Operating Partnership, L.P. -51%

Enterprise Products Operating LLC– 49%
	 
	 	 	 	 
	Enterprise Lou-Tex Propylene
Pipeline, L.P.

	 	Texas
	 	DEP Operating Partnership, L.P. – 66%
general partner interest 

Enterprise Products Operating LLC – 33%
limited partner interest 

Propylene Pipeline Partnership L.P. –
1% limited partner interest
	 
	 	 	 	 
	Enterprise Texas Pipeline LLC

	 	 	 	DEP Operating Partnership, L.P. -51%

Enterprise Products Operating LLC– 49%
	 
	 	 	 	 
	Evangeline Gulf Coast Gas, LLC

	 	Delaware
	 	Acadian Gas, LLC – 100%
	 
	 	 	 	 
	MCN Acadian Gas Pipeline, LLC

	 	Delaware
	 	Acadian Gas, LLC – 100%
	 
	 	 	 	 
	MCN Pelican Interstate Gas, LLC

	 	Delaware
	 	Acadian Gas, LLC – 100%
	 
	 	 	 	 
	MCN Pelican Transmission LLC

	 	Delaware
	 	Acadian Gas, LLC – 100%
	 
	 	 	 	 
	Mont Belvieu Caverns, LLC

	 	Delaware
	 	DEP Operating Partnership, L.P. – 66%

Enterprise Products Operating LLC –
33.365%

Enterprise Products OLPGP, Inc. – 0.635%
	 
	 	 	 	 
	Neches Pipeline System

	 	Texas
	 	MCN Acadian Gas Pipeline, LLC – 50%

TXO-Acadian Gas Pipeline, LLC – 50%
	 
	 	 	 	 
	Ponchartrain Natural Gas System

	 	Texas
	 	MCN Acadian Gas Pipeline, LLC – 50%

TXO-Acadian Gas Pipeline, LLC – 50%
	 
	 	 	 	 
	Sabine Propylene Pipeline, L.P.

	 	Texas
	 	DEP Operating Partnership, L.P. – 66%
general partner interest

Enterprise Products Operating LLC – 33%
limited partner interest

Propylene Pipeline Partnership L.P. –
1%
limited partner interest

 

 

	 	 	 	 	 
	 	 	Jurisdiction of	 	Effective Ownership by the Borrower or a
	Name of Subsidiary	 	Formation	 	Subsidiary
	South Texas NGL Pipelines, LLC

	 	Delaware
	 	DEP Operating Partnership, L.P. – 66%

Enterprise Products Operating LLC – 34%
	 
	 	 	 	 
	Tejas-Magnolia Energy, LLC

	 	Delaware
	 	Ponchartrain Natural Gas System – 96.6%

MCN Pelican Interstate Gas, LLC – 3.4%
	 
	 	 	 	 
	TXO-Acadian Gas Pipeline, LLC

	 	Delaware
	 	Acadian Gas, LLC – 100%

 

 

Schedule 6.01

Existing Indebtedness

At March 31, 2008, long-term debt for Evangeline consisted of:

(i) $13,150,000.00 in principal amount of 9.87% fixed-rate Series B Senior Secured Notes due
December 2010 pursuant to an Indenture dated February 11, 1992, by and among Evangeline Gas
Pipeline Company, L.P. and Bank of Montreal Trust Company, as Trustee, as amended and
supplemented; and

(ii) a $7.5 million Subordinated Note Payable to The Louisiana Land and Exploration Company
(or any successor or assign), dated December 31, 1991, made by Evangeline Gas Pipeline
Company, L.P. pursuant to a Second Amended and Restated Promissory Note entered into on July
1, 1997. Accrued interest on this Subordinated Note Payable was $16,381,969.33 at March 31,
2008, and this amount will increase over time pursuant to the terms of the Note.   This
interest will not be paid until the Series B Senior Secured Notes referenced in paragraph
(i), above, are paid off.

 

 

Schedule 6.02

Existing Liens

As disclosed in the Registration Statement:

	 	A.	 	The 9.87% Senior Secured Notes due December 31, 2010 issued by Evangeline Gas Pipeline
Company, L.P. disclosed in Schedule 6.01 are collateralized by Evangeline’s property, plant
and equipment; proceeds from a gas sales contract; and by a debt service reserve
requirement.
	 
	 	B.	 	Entergy has the option to purchase the Evangeline pipeline system or an equity interest
in Evangeline. In 1991, Evangeline Gas Pipeline Company, L.P. entered into an agreement
with Entergy whereby Entergy was granted the right to acquire Evangeline’s pipeline system
for a nominal price, plus the complete performance and compliance with the natural gas
sales contract. The option period begins the earlier of July 1, 2010 or upon the payment in
full of Evangeline’s Series B notes as discussed below. It terminates on December 31, 2012.
	 
	 	C.	 	Pursuant to an Omnibus Agreement dated January 5, 2007 (as amended, modified,
supplemented or restated from time to time), Enterprise Products Operating LLC has a right
of first refusal to acquire any equity interests of the subsidiaries of DEP Operating
Partnership, L.P. or any assets owned by Duncan Energy Partners L.P. or its subsidiaries.

 

 

EXHIBIT A

FORM OF

ASSIGNMENT AND ACCEPTANCE

          Reference is made to the Term Loan Agreement dated as of April 18, 2008 (as amended and in
effect on the date hereof, the “Credit Agreement”), among Duncan Energy Partners L.P., the Lenders
named therein and Wachovia Bank, National Association, as Administrative Agent for the Lenders.
Terms defined in the Credit Agreement are used herein with the same meanings.

          The Assignor named herein hereby sells and assigns, without recourse, to the Assignee named
herein, and the Assignee hereby purchases and assumes, without recourse, from the Assignor,
effective as of the Assignment Date set forth herein the interests set forth herein (the “Assigned
Interest”) in the Assignor’s rights and obligations under the Credit Agreement, including, without
limitation, the interests set forth herein in the Commitment of the Assignor on the Assignment Date
and Loans owing to the Assignor which are outstanding on the Assignment Date, but excluding accrued
interest and fees to and excluding the Assignment Date. The Assignee hereby acknowledges receipt
of a copy of the Credit Agreement. From and after the Assignment Date (i) the Assignee shall be a
party to and be bound by the provisions of the Credit Agreement and, to the extent of the Assigned
Interest, have the rights and obligations of a Lender thereunder and (ii) the Assignor shall, to
the extent of the Assigned Interest, relinquish its rights and be released from its obligations
under the Credit Agreement.

          This Assignment and Acceptance is being delivered to the Administrative Agent together with
(i) if the Assignee is a Foreign Lender, any documentation required to be delivered by the Assignee
pursuant to Section 2.17(e) of the Credit Agreement, duly completed and executed by the Assignee,
and (ii) if the Assignee is not already a Lender under the Credit Agreement, an Administrative
Questionnaire in the form supplied by the Administrative Agent, duly completed by the Assignee.
The [Assignee/Assignor] shall pay the fee payable to the Administrative Agent pursuant to
Section 9.04(b) of the Credit Agreement.

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

Date of Assignment:

Legal Name of Assignor:

Legal Name of Assignee:

Assignee’s Address for Notices:

Effective Date of Assignment

(“Assignment Date”):

1

 

	 	      	 	 	 	      	 	 	 
	 	 	 	 	 	 	Percentage Assigned of
	 	 	 	 	 	 	Loans/Commitment (set forth, to at
	 	 	 	 	 	 	least 8 decimals, as a percentage of
	 	 	 	 	 	 	the Loans or the aggregate
	 	 	 	 	 	 	Commitments of all Lenders
	Facility	 	Principal Amount Assigned	 	thereunder)
	Commitment Assigned:
	 	$	 	 	 	 	%	 
	Loans Assigned:
	 	$	 	 	 	 	%	 

The terms set forth above are hereby agreed to:

	 	 	 	 	 
	 	[Name of Assignor] , as Assignor

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 
	 	[Name of Assignee] , as Assignee

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 

2

 

	 	 	 	 	 

The undersigned hereby consent to the within assignment:

	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 
	Duncan Energy Partners L.P.	 	Wachovia Bank, National Association, as Administrative Agent	 	 
	 
	 	 	 	 	 	 	 	 
	By: DEP Holdings, LLC, General Partner	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 
	By:

	 	 	 	By:	 	 	 	 
	 

	 	 

Name:
	 	 	 	 

Name:
	 	 
	 

	 	Title:
	 	 	 	Title:	 	 

3

 

EXHIBIT B

FORM OF BORROWING REQUEST

Dated                     

Wachovia Bank, National Association,

  as Administrative Agent

One Wachovia Center, TW-10

301 South College Street

Charlotte, North Carolina 28288-0608

Attn: Syndication Agency Services

Ladies and Gentlemen:

          This Borrowing Request is delivered to you by Duncan Energy Partners L.P. (the “Borrower”), a
Delaware limited partnership, under Section 2.03 of the Term Loan Agreement dated as of April 18,
2008 (as restated, amended, modified, supplemented and in effect, the “Credit Agreement”), by and
among the Borrower, the Lenders party thereto, and Wachovia Bank, National Association, as
Administrative Agent.

          1. The Borrower hereby requests that the Lenders make a Loan or Loans in the aggregate
principal amount of $300,000,000 (the “Loan” or the “Loans”).

          2. The Borrower hereby requests that the Loan or Loans be made on the following Business Day:
                    , 2008 (the “Effective Date”).

          3. The Borrower hereby requests that the Loan or Loans bear interest at the following interest
rate, plus (if Eurodollar Loan) the Applicable Rate, as set forth below:

	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	Maturity Date
	 	 	Principal	 	 	 	 	 	for
	Type of	 	Component of	 	Interest	 	Interest Period	 	Interest Period
	Loan	 	Loan	 	Rate	 	(if applicable)	 	(if applicable)
	 

	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 

          4. The Borrower hereby requests that the funds from the Loan or Loans be disbursed pursuant to
the account designation letter dated                     , 2008 by the Borrower to Administrative Agent [or to
the following bank account:                                         ].

          5. The requested Loans do not exceed the maximum amount permitted to be outstanding pursuant
to the terms of the Credit Agreement.

1

 

          6. All of the conditions applicable to the Loans requested herein as set forth in the Credit
Agreement have been satisfied as of the date hereof and will remain satisfied to the date of such
Loans.

          7. All capitalized undefined terms used herein have the meanings assigned thereto in the
Credit Agreement.

          IN WITNESS WHEREOF, the undersigned have executed this Borrowing Request this                      day of
                    , 2008.

	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 	 	DUNCAN ENERGY PARTNERS L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	By: DEP Holdings, LLC, its General Partner	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	 	 	 

Name:
	 	 
	 

	 	 	 	Title:	 	 

2

 

EXHIBIT D

FORM OF

INTEREST ELECTION REQUEST

Dated                     

Wachovia Bank, National Association,

  as Administrative Agent

One Wachovia Center, TW-10

301 South College Street

Charlotte, North Carolina 28288-0608

Attn: Syndication Agency Services

Ladies and Gentlemen:

          This irrevocable Interest Election Request (the “Request”) is delivered to you under Section
2.07 of the Term Loan Agreement dated as of April 18, 2008 (as restated, amended, modified,
supplemented and in effect from time to time, the “Credit Agreement”), by and among Duncan Energy
Partners L.P., a Delaware limited partnership (the “Borrower”), the Lenders party thereto (the
“Lenders”), and Wachovia Bank, National Association, as Administrative Agent.

          1. This Interest Election Request is submitted for the purpose of:

     (a) [Converting] [Continuing] a                      Loan [into] [as] a                     
Loan.1/

     (b) The aggregate outstanding principal balance of such Loan is $                    .

     (c) The last day of the current Interest Period for such Loan is
                    .2/

     (d) The principal amount of such Loan to be [converted] [continued] is
$                    .3/

     (e) The requested effective date of the [conversion] [continuation] of such Loan is
                    .4/

     (f) The requested Interest Period applicable to the [converted] [continued] Loan is
                    .5/

 

			
	1.	 	Delete the bracketed language and insert “ABR” or “Eurodollar”,
as applicable, in each blank.
	 
	2.	 	Insert applicable date for any Eurodollar Loan being converted
or continued.
	 
	3.	 	Complete with an amount in compliance with Section 2.08 of the
Credit Agreement.
	 
	4.	 	Complete with a Business Day in compliance with Section 2.08 of
the Credit Agreement.

1

 

          2. With respect to a Borrowing to be converted to or continued as a Eurodollar Borrowing, no
Event of Default exists, and none will exist upon the conversion or continuation of the Borrowing
requested herein.

          3. All capitalized undefined terms used herein have the meanings assigned thereto in the
Credit Agreement.

          IN WITNESS WHEREOF, the undersigned has executed this Interest Election Request this ___ day
of                     , ___.

	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 	 	DUNCAN ENERGY PARTNERS L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	By: DEP Holdings, LLC, its General Partner	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	 	 	 

Name:
	 	 
	 

	 	 	 	Title:	 	 

 

			
	5.	 	Complete for each Eurodollar Loan in compliance with the
definition of the term “Interest Period” specified in Section 1.01.

2

 

EXHIBIT E-1 and E-2

FORMS OF

OPINIONS OF COUNSEL FOR BORROWER

 

 

EXHIBIT F

FORM OF COMPLIANCE CERTIFICATE

          The undersigned hereby certifies that he is the                      of DEP HOLDINGS, LLC,
a Delaware limited liability company, general partner of DUNCAN ENERGY PARTNERS L.P., a Delaware
limited partnership (the “Borrower”), and that as such he is authorized to execute this certificate
on behalf of the Borrower. With reference to the Term Loan Agreement dated as of April 18, 2008 (as
restated, amended, modified, supplemented and in effect from time to time, the “Agreement”), among
the Borrower, Wachovia Bank, National Association, as Administrative Agent, for the lenders (the
“Lenders”), which are or become a party thereto, and such Lenders, the undersigned represents and
warrants as follows (each capitalized term used herein having the same meaning given to it in the
Agreement unless otherwise specified);

(a) [There currently does not exist any Default under the Agreement.] [Attached hereto is a
schedule specifying the details of [a] certain Default[s] which exist under the Agreement
and the action taken or proposed to be taken with respect thereto.]

(b) Attached hereto are the detailed computations necessary to determine whether the
Borrower is in compliance with Sections 6.07(a) and (b) of the Agreement as of the end of
the [fiscal quarter][fiscal year] ending                     .

EXECUTED AND DELIVERED this ___ day of                                         , 20___.

	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 	 	DUNCAN ENERGY PARTNERS L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	By: DEP Holdings, LLC, its General Partner	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	 	 	 

Name:
	 	 
	 

	 	 	 	Title:	 	 

 

 

EXHIBIT G

FORM OF

NOTE

			
	 	 	 
	$                     
	 	                    , 200___

          DUNCAN ENERGY PARTNERS L.P., a Delaware limited partnership (the “Borrower”), for
value received, promises and agrees to pay to                                          (the
“Lender”), or order, at the payment office of WACHOVIA BANK, NATIONAL ASSOCIATION, as
Administrative Agent, at 301 South College Street, Charlotte, North Carolina 28288-0608, the
principal sum of                                          AND NO/100 DOLLARS ($                    ), or such lesser
amount as shall equal the aggregate unpaid principal amount of the Loans owed to the Lender under
the Credit Agreement, as hereafter defined, in lawful money of the United States of America and in
immediately available funds, on the dates and in the principal amounts provided in the Credit
Agreement, and to pay interest on the unpaid principal amount as provided in the Credit Agreement
for such Loans, at such office, in like money and funds, for the period commencing on the date of
each such Loan until such Loan shall be paid in full, at the rates per annum and on the dates
provided in the Credit Agreement.

          This note evidences the Loans owed to the Lender under that certain Term Loan Agreement dated
as of April 18, 2008, by and among the Borrower, Wachovia Bank, National Association, individually
and as Administrative Agent, and the other financial institutions parties thereto (including the
Lender) (such Credit Agreement, together with all amendments or supplements thereto, being the
“Credit Agreement”), and shall be governed by the Credit Agreement. Capitalized terms used
in this note and not defined in this note, but which are defined in the Credit Agreement, have the
respective meanings herein as are assigned to them in the Credit Agreement.

          The Lender is hereby authorized by the Borrower to endorse on Schedule A (or a continuation
thereof) attached to this note, the Type of each Loan owed to the Lender, the amount and date of
each payment or prepayment of principal of each such Loan received by the Lender and the Interest
Periods and interest rates applicable to each Loan, provided that any failure by the Lender to make
any such endorsement shall not affect the obligations of the Borrower under the Credit Agreement or
under this note in respect of such Loans.

          This note may be held by the Lender for the account of its applicable lending office and,
except as otherwise provided in the Credit Agreement, may be transferred from one lending office of
the Lender to another lending office of the Lender from time to time as the Lender may determine.

          Except only for any notices which are specifically required by the Credit Agreement, the
Borrower and any and all co-makers, endorsers, guarantors and sureties severally waive notice
(including but not limited to notice of intent to accelerate and notice of acceleration, notice of
protest and notice of dishonor), demand, presentment for payment, protest, diligence in collecting
and the filing of suit for the purpose of fixing liability, and consent that the time of payment
hereof may be extended and re-extended from time to time without notice to any of them. Each such
person agrees that its liability on or with respect to this note shall not be affected by any
release of or change in any guaranty or security at any time existing or by any

1

 

failure to perfect or maintain perfection of any lien against or security interest in any such
security or the partial or complete unenforceability of any guaranty or other surety obligation, in
each case in whole or in part, with or without notice and before or after maturity.

          The Credit Agreement provides for the acceleration of the maturity of this note upon the
occurrence of certain events and for prepayment of Loans upon the terms and conditions specified
therein. Reference is made to the Credit Agreement for all other pertinent purposes.

          This note is issued pursuant to and is entitled to the benefits of the Credit Agreement.

          It is hereby understood and agreed that DEP Holdings, LLC, the general partner of the
Borrower, shall have no personal liability, as general partner or otherwise, for the payment of any
amount owing or to be owing hereunder.

          This note shall be construed in accordance with and be governed by the law of the State of
New York and the United States of America from time to time in effect.

	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 	 	DUNCAN ENERGY PARTNERS L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	By: DEP Holdings, LLC, its General Partner	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	 	 	 

Name:
	 	 
	 

	 	 	 	Title:	 	 

2

 

SCHEDULE A

TO

NOTE

This note evidences the Loan owed to the Lender under the Credit Agreement, in the principal amount
set forth below and the applicable Interest Periods and rates for such Loan, subject to the
payments of principal set forth below:

SCHEDULE

OF

LOAN AND PAYMENTS OF PRINCIPAL AND INTEREST

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	Amount of	 	 	 	 	 	 
	 	 	 	 	 	 	Principal	 	Principal	 	 	 	Balance	 	Notation
	 	 	Interest	 	 	 	Amount of	 	Paid or	 	Interest	 	of	 	Made
	Date	 	Period	 	Rate	 	Loan	 	Prepaid	 	Paid	 	Loans	 	by
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 
	 	 
	 	 
	 	 
	 	 
	 	 
	 	 

3exv10w8

Exhibit 10.8

FIRST AMENDMENT TO TERM LOAN AGREEMENT

     THIS FIRST AMENDMENT TO TERM LOAN AGREEMENT (this “First Amendment”) is made and
entered into as of July 11, 2008 (the “First Amendment Effective Date”), among DUNCAN
ENERGY PARTNERS, L.P., a Delaware limited partnership (“Borrower”); WACHOVIA BANK, NATIONAL
ASSOCIATION, as administrative agent (in such capacity, the “Administrative Agent”) for
each of the lenders (the “Lenders”) that is a signatory or which becomes a signatory to the
hereinafter defined Loan Agreement; and the Lenders party hereto.

R E C I T A L S:

     A. On April 18, 2008, the Borrower, the Lenders and the Administrative Agent entered into a
certain Term Loan Agreement (the “Loan Agreement”) whereby, upon the terms and conditions
therein stated, the Lenders agreed to make term Loans to the Borrower.

     B. The parties hereto mutually desire to amend the Loan Agreement as hereinafter set forth.

     NOW, THEREFORE, in consideration of the mutual covenants and agreements herein contained, the
Borrower, the Lenders party hereto and the Administrative Agent hereby agree as follows:

     1. Certain Definitions.

     1.1 Terms Defined Above. As used in this First Amendment, the terms “Administrative
Agent”, “Borrower”, “Loan Agreement”, “Lenders”, “First Amendment” and “First Amendment Effective
Date”, shall have the meanings indicated above.

     1.2 Terms Defined in Agreement. Unless otherwise defined herein, all terms beginning
with a capital letter which are defined in the Loan Agreement shall have the same meanings herein
as therein unless the context hereof otherwise requires.

     2. Amendments to Loan Agreement.

     2.1 Defined Terms.

     (a) The term “Agreement”, as defined in Section 1.01 of the Loan Agreement, is hereby amended
to mean the Loan Agreement, as amended and supplemented by this First Amendment and as the same may
from time to time be further amended or supplemented.

     (b) The reference to “July 18, 2008” in the term “Effective Date”, as defined in Section 1.01
of the Loan Agreement, is hereby amended to refer instead to “January 30, 2009”.

     (c) The term “Maturity Date”, as defined in Section 1.01 of the Loan Agreement, is hereby
amended in its entirety to read as follows:

          “Maturity Date” means the third anniversary of the Effective Date.

1

 

     2.2 Additional Defined Terms. Section 1.01 of the Credit Agreement is hereby further
amended and supplemented by adding the following new definitions, which read in their entirety as
follows:

     “First Amendment” means that certain First Amendment to Term Loan Agreement
dated as of the First Amendment Effective Date, among the Borrower, the Lenders party
thereto and the Administrative Agent.

     “First Amendment Effective Date” means July 11, 2008.

     2.3 Effective Date. The references to “July 18, 2008” contained in Section 2.09(a),
the last paragraph of Section 4.01, and Section 9.02(b) of the Loan Agreement are hereby amended to
refer instead to “January 30, 2009”.

     2.4 Conditions Precedent. The obligation of the Lenders party hereto and the
Administrative Agent to enter into this First Amendment shall be conditioned upon the following
conditions precedent:

     (a) The Administrative Agent shall have received a copy of this First Amendment, duly
completed and executed by the Borrower and Lenders holding at least seventy-five percent (75%) of
the total Commitments as required pursuant to the proviso set forth in Section 9.02(b)(i) of the
Loan Agreement.

     (b) The Administrative Agent shall have received a certificate, dated the First Amendment
Effective Date and signed by the President, an Executive Vice President or a Financial Officer of
the Borrower, confirming compliance with the conditions set forth in paragraphs (a) and (b) of
Section 4.02 of the Loan Agreement and Section 2.4(d) hereof.

     (c) The Administrative Agent shall have received all fees and other amounts due and payable on
or prior to the First Amendment Effective Date, including, to the extent invoiced five (5) Business
Days prior to such date, reimbursement or payment of all out-of-pocket expenses required to be
reimbursed or paid by the Borrower hereunder.

     (d) As of the First Amendment Effective Date, no Material Adverse Change (and no material
adverse change, from that in effect on December 31, 2007, in the financial condition or results of
operation of the assets to be acquired pursuant to the Acquisition taken as a whole) exists.

     (e) The Administrative Agent shall have received such other information, documents or
instruments as it or its counsel may reasonably request.

     2.5 Effectiveness. Subject to the satisfaction of the conditions precedent set forth
in Section 2.4 hereof, this First Amendment shall be effective as of the date hereof.

     3. Representations and Warranties. The Borrower represents and warrants that:

     (a) there exists no Default or Event of Default, or any condition or act which constitutes, or
with notice or lapse of time or both would constitute, an Event of Default under the Loan
Agreement, as hereby amended and supplemented;

2

 

     (b) the Borrower has performed and complied with all covenants, agreements and conditions
contained in the Loan Agreement, as hereby amended and supplemented, required to be performed or
complied with by it; and

     (c) the representations and warranties of the Borrower contained in the Loan Agreement, as
hereby amended and supplemented, were true and correct in all material respects when made, and are
true and correct in all material respects at and as of the time of delivery of this First
Amendment, except to the extent such representations and warranties relate to an earlier date, in
which case such representations and warranties were true and correct in all material respects as of
such earlier date.

     4. Extent of Amendments. Except as expressly herein set forth, all of the terms,
conditions, defined terms, covenants, representations, warranties and all other provisions of the
Loan Agreement are herein ratified and confirmed and shall remain in full force and effect.

     5. Counterparts. This First Amendment may be executed in two or more counterparts,
and it shall not be necessary that the signatures of all parties hereto be contained on any one
counterpart hereof; each counterpart shall be deemed an original, but all of which together shall
constitute one and the same instrument.

     6. References. On and after the First Amendment Effective Date, the terms
“Agreement”, “hereof”, “herein”, “hereunder”, and terms of like import when used in the Loan
Agreement shall, except where the context otherwise requires, refer to the Loan Agreement, as
amended and supplemented by this First Amendment.

     7. Governing Law. This First Amendment shall be governed by and construed in
accordance with the laws of the State of New York and applicable federal law.

     THIS FIRST AMENDMENT, THE LOAN AGREEMENT, AS AMENDED HEREBY, THE NOTES AND THE OTHER DOCUMENTS
EXECUTED IN CONNECTION HEREWITH OR THEREWITH REPRESENT THE FINAL AGREEMENT BETWEEN THE PARTIES AND
MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OF THE
PARTIES.

     THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

     This First Amendment shall benefit and bind the parties hereto, as well as their respective
assigns, successors, heirs, trustees and other similar legal representatives.

[Signatures Begin on Next Page]

3

 

EXECUTED as of First Amendment Effective Date.

	 	 	 	 	 
	 	BORROWER:

DUNCAN ENERGY PARTNERS, L.P.

By: DEP Holdings, LLC, General Partner

 	 
	 	By  	/s/ W. Randall Fowler 	 
	 	 	Name:  	 W. Randall Fowler	 
	 	 	Title:  	 Executive Vice President and CFO	 
	 

DEP Term
Loan First Amendment

S-1

 

	 	 	 	 	 
	 	WACHOVIA BANK, N.A.,

Individually and as Administrative Agent

 	 
	 	By  	/s/ Shannan Townsend 	 
	 	 	Name:  	 Shannan Townsend	 
	 	 	Title:  	 Director	 
	 

	 	 	 	 	 
	 	 	 
	 	 	 
	 	 	 
	 	 	 

DEP Term
Loan First Amendment

S-2

 

	 	 	 	 	 

	 	 	 	 	 
	 	SUNTRUST BANK,

Individually and as Co-Syndication Agent

 	 
	 	By  	/s/ David Simpson 	 
	 	 	Name:  	 David Simpson	 
	 	 	Title:  	 Vice President	 
	 

	 	 	 	 	 
	 	 	 
	 	 	 
	 	 	 
	 	 	 

DEP Term
Loan First Amendment

S-3

 

	 	 	 	 	 

	 	 	 	 	 
	 	THE BANK OF NOVA SCOTIA,

Individually and as Co-Syndication Agent

 	 
	 	By  	/s/ D. Mills 	 
	 	 	Name:  	 D. Mills 	 
	 	 	Title:  	 Director	 
	 

 DEP Term
Loan First Amendment

S-4

 

	 	 	 	 	 
	 	MIZUHO CORPORATE BANK, LTD.,

Individually and as Co-Documentation Agent

 	 
	 	By  	/s/ Leon Mo 	 
	 	 	Name:  	 Leon Mo	 
	 	 	Title:  	 Senior Vice President	 
	 

DEP Term
Loan First Amendment

S-5

 

	 	 	 	 	 
	 	THE ROYAL BANK OF SCOTLAND plc,

Individually and as Co-Documentation Agent

 	 
	 	By  	/s/ Brain Williams 	 
	 	 	Name:  	 Brain Williams	 
	 	 	Title:  	 Vice President	 
	 

DEP Term
Loan First Amendment

S-6

 

	 	 	 	 	 
	 	BANK OF AMERICA, N.A.,

a Lender

 	 
	 	By  	/s/ Gabe Gomez 	 
	 	 	Name:  	 Gabe Gomez	 
	 	 	Title:  	 Vice President	 
	 

DEP Term
Loan First Amendment

S-7

 

	 	 	 	 	 
	 	BARCLAYS BANK PLC, a Lender

 	 
	 	By  	/s/ Nicholas A. Bell 	 
	 	 	Name:  	 Nicholas A. Bell	 
	 	 	Title:  	 Director	 
	 

DEP Term
Loan First Amendment

S-8

 

	 	 	 	 	 
	 	BNP PARIBAS, a Lender

 	 
	 	By  	/s/ Betsy Jocher 	 
	 	 	Name:  	 Betsy Jocher	 
	 	 	Title:  	 Director	 
	 
	 	 	 
	 	By  	
/s/ Greg Smothers 	 
	 	 	Name:  	 Greg Smothers	 
	 	 	Title:  	 Director	 
	 

DEP Term
Loan First Amendment

S-9

 

	 	 	 	 	 
	 	THE BANK OF TOKYO-MITSUBISHI

UFJ, LTD., a Lender

 	 
	 	By  	/s/ Linda Terry 	 
	 	 	Name:  	 Linda Terry	 
	 	 	Title:  	 Vice President & Manager	 
	 

DEP Term
Loan First Amendment

S-10

 

	 	 	 	 	 
	 	CITIBANK, N.A., a Lender

 	 
	 	By  	/s/ Todd Mogil 	 
	 	 	Name:  	 Todd Mogil	 
	 	 	Title:  	 Vice President	 
	 

DEP Term
Loan First Amendment

S-11

 

	 	 	 	 	 
	 	DNB NOR BANK ASA, a Lender

 	 
	 	By  	/s/ Philip F. Kurpiewski 	 
	 	 	Name:  	 Philip F. Kurpiewski	 
	 	 	Title:  	 Senior Vice President	 
	 
	 	By  	/s/ Cathleen Buckley 	 
	 	 	Name:  	 Cathleen Buckley	 
	 	 	Title:  	 Vice President	 

DEP Term
Loan First Amendment

S-12

 

	 	 	 	 	 
	 	LEHMAN BROTHERS COMMERCIAL BANK, a Lender

 	 
	 	By  	/s/ Brian Halbeisen 	 
	 	 	Name:  	 Brian Halbeisen	 
	 	 	Title:  	 Credit Officer	 
	 

DEP Term
Loan First Amendment

S-13

 

	 	 	 	 	 
	 	MORGAN STANLEY BANK, a Lender

 	 
	 	By  	/s/ Daniel Twenge 	 
	 	 	Name:  	 Daniel Twenge	 
	 	 	Title:  	 Authorized Signatory	 
	 

DEP Term
Loan First Amendment

S-14

 

	 	 	 	 	 
	 	UBS LOAN FINANCE LLC, a Lender

 	 
	 	By  	/s/ Richard L. Tavrow 	 
	 	 	Name:  	 Richard L. Tavrow	 
	 	 	Title:  	 Director	 
	 
	 	By  	/s/ David B. Julie 	 
	 	 	Name:  	 David B. Julie	 
	 	 	Title:  	 Associate Director	 

DEP Term
Loan First Amendment

S-15

 

	 	 	 	 	 
	 	WELLS FARGO BANK, N.A., a Lender

 	 
	 	By  	/s/ Terence D’Souza 	 
	 	 	Name:  	 Terence D’Souza	 
	 	 	Title:  	 Vice President	 
	 

DEP Term
Loan First Amendment

S-16

 

	 	 	 	 	 
	 	GOLDMAN SACHS CREDIT PARTNERS, a Lender

 	 
	 	By  	/s/ Mark Walton 	 
	 	 	Name:  	 Mark Walton	 
	 	 	Title:  	 Assistant Vice-President	 
	 

DEP Term
Loan First Amendment

S-17

 

	 	 	 	 	 
	 	JPMORGAN CHASE BANK, N.A., a Lender

 	 
	 	By  	/s/ Dianne L. Russell 	 
	 	 	Name:  	 Dianne L. Russell	 
	 	 	Title:  	 JPMorgan Chase Bank, N.A.	 
	 

DEP Term
Loan First Amendment

S-18

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