Document:

Agreement between Duke Energy and Jimmy W. Mogg

 Exhibit 10-23 
  
 PANHANDLE EASTERN CORPORATION 
  
 America’s Natural Gas Transportation Company 
  
 Dan R. Hennig 
 Vice President 
 Human Resources & Administration 
  
 May 25, 1995 
  
 Mr. Jim Mogg 
  
 Dear Jim: 
  
 As you have accepted a transfer to Associated Natural Gas Corporation (“ANGC”), you know that your new position will require you
to relocate to Denver, Colorado. You also know that you will cease to participate in benefit plans offered to employees of Panhandle Eastern Corporation (“PEC”) and will participate in benefit plans offered to employees of ANGC. You also
understand that, as when you were employed by PEC, you will be an “at-will” employee with ANGC; that is, your employment with ANGC is terminable by either you or ANGC at any time for any reason or no reason at all. 
  
 The purpose of this memorandum is to memorialize an
understanding between you, ANGC and PEC as to what will happen should you desire to terminate your employment with ANGC by your retirement. In such event, you will give ANGC and PEC at least ninety (90) days’ notice of your desire to terminate
your employment by retirement. Upon receipt of such notice, you will be transferred to a position of equal base salary at PEC or one of its non-ANGC subsidiaries, selected by PEC management, and you shall be an employee of such entity from the date
of your transfer to the date of your retirement. It is important to PEC that you provide this management transition period in connection with the functional development of its non-jurisdictional operations. Upon such transfer, you will be eligible
to participate in employee benefit plans generally available to employees of the employing company. 
  
 In addition, if, upon your subsequent retirement, it is determined that your retirement benefit under PEC’s defined benefit
retirement plans is less than it would have been had you not accepted the transfer to ANGC, PEC will pay you the difference out of its general assets. 
  
 P.O Box 1642 Houston, Texas 77251-1642 5400 Westheimer Court 77056-5310 713-627-5850 
  

 J. W. Mogg 
 May 25, 1995 
 Page 2 
  
 This understanding is binding upon the successors and assigns of PEC. However, it is not binding upon such
successors or assigns in the event of a sale or transfer of ANGC prior to the date of your retirement should you elect to remain with ANGC in the event of such sale or transfer rather than retire or transfer to another PEC subsidiary. 
  
 This memorandum does not create any additional obligations
for either you or PEC and ANGC other than those specifically provided herein. 
  
 Please acknowledge your receipt and acceptance of the terms of this memorandum by signing and dating it in the space designated below. 
  
 Sincerely, 
  

	
	
	/s/    DAN R. HENNIG        
	Dan R. Hennig Vice President,
	Human Resources and Administration

  
 ACCEPTED AND AGREED
TO THIS 25th DAY OF May, 1995.          
  

	
	
	/s/    J. W. MOGG        
	 

  

  

					
	Duke	 	 	 	    Duke Energy Corporation
	Energy.	 	 	 	    5400 Westheimer Court
	 	 	 	 	    P.O. Box 1642
	 	 	 	 	     Houston, TX 77251-1642

  
 August
4, 2001 
  
 Mr. Jimmy W. Mogg 
  
 Dear Jim: 
  
 You currently are employed by Duke Energy Field Services, LLC (“FS”), an entity in which Duke Energy Corporation
(“DEC”), directly or indirectly, holds an ownership interest of approximately 70%, but which is not considered herein to be an affiliated company of DEC. The purpose of this letter is to memorialize an understanding between you and DEC as
to what will happen should you decide to terminate your employment with FS in order to retire. In such event, you agree to provide DEC at least thirty (30) day’s notice in advance of the effective date of termination of your FS employment,
which notice shall be directed in writing to DEC’s Group President, Energy Transmission, or successor DEC position. You further agree, that coincident with the termination of your FS employment, to accept employment with DEC, or one of its
affiliated companies, for a period of at least sixty (60) days, with a base salary rate which is not less than the rate in effect at FS at the time you provided DEC with notice of your decision to terminate FS employment, and with eligibility to
participate in the Duke Energy Corporation Executive Cash Balance Plan (“ECBP”), if such plan is then active, and in such other employee benefit plans as are generally available to employees of the employing company, and DEC agrees to
cause the offer of such employment to be made. During the period of such employment, you shall provide such management transition services and other assistance in connection with the development of non jurisdictional operations, as DEC may require.

  
 Upon the subsequent termination of such employment, unless DEC determines, in
its sole discretion, that your performance during such employment has not been satisfactory, you shall become entitled to the following special benefits. First, if the ECBP is then active, your account therein shall receive a fully vested,
supplemental credit in an amount equal to the “make-up amount”, which credit, together with any other vested portion of such account, shall be payable in accordance with the terms of the ECBP. If the ECBP is not then active, then, in lieu
of a supplemental credit to your account therein, you shall receive payment, in an amount equal to the make-up amount, subject to withholding for taxes and other lawful purposes, out of DEC’s general assets. For purposes of the proceeding
sentence, the make-up amount shall be equal to the amount, if any, by which A exceeds B, where: 
  
 “A” is the amount DEC determines to be the present value of the aggregate benefits to which you would have been entitled under the Duke Energy
Retirement Cash Balance Plan (“RCBP”) and the ECBP upon the subsequent termination of your employment with DEC and its affiliated companies, if your employment since June 29, 1995, had been with Texas Eastern Transmission Corporation
(“TETCO”); and 
  

					
	Mr. Jimmy W. Mogg	 	-2-	 	August 4, 2001

  
 “B” is the
amount DEC determines to be the present value of the aggregate benefits to which you are entitled under the RCBP and the ECBP, and under any similar program(s) provided by FS (including, but not limited to, any portion of any FS individual account,
employee or executive, savings or retirement program that is not attributable to either employee contributions/employee deferral credits or company matching contributions/company matching credits, or both), upon the subsequent termination of your
employment with DEC and its affiliated companies, but adjusted to negate the effect of any prior distribution(s). 
  
 Second, while you remain eligible for retiree coverage under any DEC-sponsored group health plan, you shall be entitled to periodic reimbursement from DEC for the amount
by which DEC determines that the employer subsidy for such coverage to which you are actually entitled, is less than the employer subsidy for such coverage to which you would have been entitled if your employment since June 29, 1995, had been with
TETCO. DEC shall increase such reimbursement by the IRS Supplemental Tax Rate and other applicable state or local rates in effect at the time of such reimbursement. 
  
 This letter does not create any additional obligations, other than those specifically provided herein, for either you or
DEC, and its affiliated companies, and the agreement contained herein may only be amended by written instrument executed by both you and DEC. 
  
 Please acknowledge your agreement to the terms of this letter by signing and dating both originals in the space designated below and return one fully
executed original to the undersigned. The other fully executed original is for your records. 
  

			
	DUKE ENERGY CORPORATION
		
	By:	 	/s/    Fred J. Fowler        
	 	 	 
		
	 Its:
	 	Group President, Energy Transmission

  
 Acknowledgment of AGREEMENT hereto, this 
                      day of             , 2001. 
  

	
	
	/s/    Jimmy W. Mogg        
	 

  

 4 

					
	Duke	 	 	 	PAUL M. ANDERSON
	Energy	 	 	 	Chairman and Chief
	 	 	 	 	Executive Officer
			
	 	 	 	 	Duke Energy Corporation
	 	 	 	 	526 South Church Street
	 	 	 	 	EC3X8
	 	 	 	 	Charlotte, NC 28202-1802
	 	 	 	 	704 382 3525
	 	 	 	 	704 382 5600 fax

  
 March 29, 2004 
  
 Mr. Jimmy W. Mogg 
  
 Dear Jim: 
  
 I am writing to you regarding the Letter Agreement, dated August 4, 2001, between you and Duke Energy Corporation (the “Letter Agreement”). Briefly, under the
Letter Agreement, if you satisfy certain advance notice requirements in connection with your decision to terminate your employment with Duke Energy Field Services, LLC (“FS”) in order to retire, and you accept subsequent employment with
Duke Energy Corporation (“DEC”), including its affiliates, that continues for at least a specified minimum period, then, upon termination of that subsequent employment, unless DEC determines, in its sole discretion, that your performance
during such subsequent employment has not been satisfactory, you become entitled to certain special, retirement-type benefits. 
  
 On January 1, 2004, your FS employment terminated and you became employed by DEC, including its affiliates, which employment continues through this day. You previously
provided notice of a March 1, 2004, retirement date, but your continuing employment beyond that date, effectively, superceded that notice. 
  
 In order to continue implementation of the Letter Agreement in light of these developments, at such time as you should decide to terminate your employment with DEC,
including its affiliates, in order to retire, you should provide DEC at least thirty (30) days’ notice in advance of the effective date of termination of such employment, which notice is to be directed in writing to Duke Energy
Corporation’s Chairman and Chief Executive Officer. 
  

	
	Very truly yours,
	
	/s/    PAUL M. ANDERSON        
	Paul M. Anderson

  

	cc:	Fred J. Fowler 

	 	Christopher C. RolfePurchase and Sale Agreement

 Exhibit 10-25 
  

  
 PURCHASE AND SALE AGREEMENT 
  
 By and Between

  
 ENTERPRISE GP HOLDINGS L.P. 
  
 and 
  
 DUKE ENERGY FIELD SERVICES, LLC 
  
 February 24, 2005 
  

 TABLE OF CONTENTS 
  

					
	 	  	 	  	Page

	 ARTICLE I
 DEFINITIONS
	  	1
			
	     Section 1.1
	  	 Definitions
	  	1
	     Section 1.2
	  	 Rules of Construction
	  	8
		
	 ARTICLE II
 PURCHASE AND SALE
	  	8
			
	     Section 2.1
	  	 Closing
	  	8
		
	 ARTICLE III
 REPRESENTATIONS AND WARRANTIES
	  	9
			
	     Section 3.1
	  	 Representations and Warranties of DEFS
	  	9
	     Section 3.2
	  	 Representations and Warranties of Enterprise
	  	11
	     Section 3.3
	  	 Representations and Warranties Concerning TEPPCO GP and TEPPCO MLP
	  	13
		
	 ARTICLE IV
 COVENANTS AND AGREEMENTS
	  	27
			
	     Section 4.1
	  	 Confidentiality
	  	27
	     Section 4.2
	  	 TEPPCO Asset Separation
	  	28
	     Section 4.3
	  	 Commercially Reasonable Efforts; Further Assurances
	  	28
	     Section 4.4
	  	 No Public Announcement
	  	28
	     Section 4.5
	  	 Expenses
	  	29
	     Section 4.6
	  	 Termination of Services Agreement
	  	29
	     Section 4.7
	  	 Transition Services
	  	29
	     Section 4.8
	  	 Tax Matters
	  	31
	     Section 4.9
	  	 TEPPCO MLP and TEPPCO GP Audit
	  	31
	     Section 4.10
	  	 Completion of 2004 Annual Report
	  	31
	     Section 4.11
	  	 Board of Directors
	  	31
	     Section 4.12
	  	 Benefit Plans
	  	31
	     Section 4.13
	  	 GPL Insurance
	  	33
	     Section 4.14
	  	 Surety Bonds
	  	33
	     Section 4.15
	  	 Other Insurance
	  	33
		
	 ARTICLE V
 REMEDIES FOR DEFAULT
	  	34
			
	     Section 5.1
	  	 Indemnity Regarding Section 3.1 and Section 3.3 Representations and Covenants
	  	34
	     Section 5.2
	  	 Indemnity Regarding Section 3.2 Representations and Covenants
	  	34
	     Section 5.3
	  	 Survival of Representations
	  	34
	     Section 5.4
	  	 Calculation of Damages
	  	35
	     Section 5.5
	  	 Enforcement of this Agreement
	  	35
	     Section 5.6
	  	 Exclusive Remedy
	  	36

  

 i 

					
	     Section 5.7
	  	 Limitation on Damages
	  	36
	     Section 5.8
	  	 No Waiver Relating to Claims for Fraud/Willful Misconduct
	  	36
	     Section 5.9
	  	 Express Negligence Clause
	  	36
		
	 ARTICLE VI
	  	 
	 MISCELLANEOUS
	  	36
			
	     Section 6.1
	  	 Notices
	  	36
	     Section 6.2
	  	 Governing Law; Jurisdiction; Waiver of Jury Trial
	  	37
	     Section 6.3
	  	 Entire Agreement; Amendments and Waivers
	  	38
	     Section 6.4
	  	 Binding Effect and Assignment
	  	38
	     Section 6.5
	  	 Severability
	  	38
	     Section 6.6
	  	 Execution
	  	38
	     Section 6.7
	  	 Disclosure Letters
	  	39
		
	Exhibits	  	 
	 Exhibit A
	  	         Form of Promissory Note
	  	 
	 Exhibit B
	  	         Form of Security Agreement
	  	 

  

 ii 

 PURCHASE AND SALE AGREEMENT 
  
 This PURCHASE AND SALE AGREEMENT (this “Agreement”), dated as of February 24, 2005 (the “Execution
Date”), is entered into by and between Enterprise GP Holdings L.P., a Delaware limited partnership (“Enterprise”) and Duke Energy Field Services, LLC, a Delaware limited liability company (“DEFS”).

  
 W I T N E S S E T H: 
  
 WHEREAS, DEFS owns 100% of the membership interests in Texas Eastern Products
Pipeline Company, LLC, a Delaware limited liability company (“TEPPCO GP”), and TEPPCO GP is the sole general partner of, and owns 100% of the general partner interest in, TEPPCO Partners, L.P., a Delaware limited partnership
(“TEPPCO MLP”); and 
  
 WHEREAS, subject to the
terms and conditions set forth herein, DEFS desires to sell to Enterprise, and Enterprise desires to purchase from DEFS, 100% of the membership interests in TEPPCO GP (the “Membership Interest”). 
  
 NOW, THEREFORE, in consideration of the premises and the respective
representations, warranties, covenants, agreements and conditions contained herein, the parties hereto agree as follows: 
  
 ARTICLE I 
 DEFINITIONS

  
 Section 1.1 Definitions. In this Agreement, unless
the context otherwise requires, the following terms shall have the following meanings respectively: 
  
 “Affected Employees” means (1) all employees of the TEPPCO Partnership Group Entities, and (2) any employees of DEFS who either work on a
full-time basis in connection with the TEPPCO Partnership Group Entities or who, at the Closing, work on less than a full-time basis in connection with the TEPPCO Partnership Group Entities and are or will be reassigned in good faith by DEFS on or
prior to the close of the Benefits Transition Services Period to work on a full-time basis on TEPPCO Partnership Group Entities’ matters. 
  
 “affiliate” has the meaning set forth in Rule 405 of the rules and regulations under the Securities Act, unless otherwise expressly
stated herein. 
  
 “Agreement” has the meaning
set forth in the Preamble. 
  
 “Benefits Transition
Services Period” has the meaning set forth in Section 4.7(a). 
  
 “Bonds” has the meaning set forth in Section 4.14. 
  
 “Business Day” means any day on which commercial banks are generally open for business in New York, New York other than a Saturday, a
Sunday or a day observed as a holiday in New York, New York under the Laws of the State of New York or the federal Laws of the United States of America. 

 “Closing” has the meaning set forth in Section 2.1 (a).  
  
 “Closing Date” has the meaning set forth in Section 2.
l(a).  
  
 “Code” means the Internal
Revenue Code of 1986, as amended. 
  
 “Damages”
means claims, liabilities, damages, penalties, judgments, assessments, losses, costs, expenses, including reasonable attorneys’ fees and expenses, incurred by the party seeking indemnification under this Agreement. 
  
 “DEFS” has the meaning set forth in the Preamble.

  
 “DEFS Indemnified Parties” has the meaning
set forth in Section 5.2. 
  
 “DEFS Plans”
means a TEPPCO Plan for which DEFS serves as the “plan sponsor” as defined in Section 3(16)(B) of ERISA. 
  
 “Direct Costs” has the meaning set forth in Section 4.7(c).  
  
 “Draft 10-K” has the meaning set forth in Section 3.3(g)(ii). 
  
 “Encumbrances” means pledges, restrictions on transfer,
rights or options to purchase, rights of first refusal, proxies and voting or other agreements, liens, claims, charges, mortgages, security interests or other legal or equitable encumbrances, limitations or restrictions of any nature whatsoever.

  
 “Enterprise” has the meaning set forth in the
Preamble. 
  
 “Enterprise GP” means Enterprise
Products GP, LLC, a Delaware limited liability company. 
  
 “Enterprise Group Health Plan” has the meaning set forth in Section 4.12(b).  
  
 “Enterprise Indemnified Parties” has the meaning set forth in Section 5.1. 
  
 “Enterprise Material Adverse Effect” means any change,
effect, event or occurrence that materially and adversely affects the ability of Enterprise to consummate the transactions contemplated by this Agreement. 
  
 “Enterprise MLP” means Enterprise Products Partners, L.P., a Delaware limited partnership. 
  
 “Enterprise Partnership Group Entities” means Enterprise
MLP, Enterprise GP and the subsidiaries of Enterprise MLP. 
  
 “EPCO” means EPCO, Inc., a Delaware corporation. 
  
 “EPE” means EPE Holdings, LLC, a Delaware limited liability company and the general partner of Enterprise. 
  

 2 

 “Environmental Laws” means any and all applicable laws, statutes, regulations, rules,
orders, ordinances, and legally enforceable directives of and agreements between a person that is subject to the applicable representation and any Governmental Entity and rules of common law pertaining to protection of human health (to the extent
arising from exposure to Hazardous Substances) or the environment (including any generation, use, storage, treatment, or Release of Hazardous Substances into the environment) including the Comprehensive Environmental Response, Compensation, and
Liability Act, 42 U.S.C. Section 9601 et seq., the Resource Conservation and Recovery Act, 42 U.S.C. Section 6901 et seq., the Clean Air Act, 42 U.S.C. Section 7401 et seq., the Federal Water Pollution Control Act, 33 U.S.C. Section
1251 et seq., the Oil Pollution Act of 1990, 33 U.S.C. Section 2701 et seq., the Toxic Substances Control Act, 15 U.S.C. Section 2601 et seq., the Safe Drinking Water Act, 42 U.S.C. Section 300f et seq., the Occupational
Safety and Health Act, 29 U.S.C. Section 651 et seq., the Atomic Energy Act, 42 U.S.C. Section 2014 et seq., the Federal Insecticide, Fungicide, and Rodenticide Act, 7 U.S.C. Section 136 et seq., and the Federal Hazardous
Materials Transportation Law, 49 U.S.C. Section 5101 et seq., as each has been amended from time to time, and all other environmental conservation and protection laws, in each case as in effect prior to or as of the Closing Date. 

 
 “ERISA” means the Employee Retirement Income Security Act
of 1974, as amended. 
  
 “Exchange Act” means the
Securities Exchange Act of 1934, as amended. 
  
 “Execution Date” has the meaning set forth in the Preamble. 
  
 “GAAP” has the meaning set forth in Section 1.2. 
  
 “governing documents” means, with respect to any person, the certificate or articles of incorporation, by-laws, articles of organization,
limited liability company agreement, partnership agreement, formation agreement, joint venture agreement, shareholder agreement or declaration or other similar governing documents of such person. 
  
 “Governmental Entity” means any (a) multinational, federal,
provincial, territorial, state, regional, municipal, local or other government, governmental or public department, central bank, court, tribunal, arbitral body, commission, board, bureau or agency, domestic or foreign, (b) subdivision, agent,
commission, board, or authority of any of the foregoing, or (c) quasi governmental or private body exercising any regulatory, expropriation or taxing authority under, or for the account of, any of the foregoing. 
  
 “Group Health Plan” means a group health plan as defined in
section 5000(b) of the Code other than a flexible spending account arrangement described in section 125 of the Code and Department of Treasury regulations thereunder. 
  
 “Hazardous Substances” means any (a) chemical, product, substance, waste, material, pollutant, or
contaminant that is defined or listed as hazardous or toxic or that is otherwise regulated under any Environmental Law; (b) friable asbestos containing materials, polychlorinated biphenyls, naturally occurring radioactive materials or radon; and (c)
any oil or gas exploration or production waste or any petroleum, petroleum hydrocarbons, petroleum products or crude oil and any components, fractions, or derivatives thereof. 
  

 3 

 “holders” means, when used with reference to the TEPPCO Limited Partner Units, the
holders of such units shown from time to time in the registers maintained by or on behalf of TEPPCO MLP. 
  
 “Individual Threshold” has the meaning set forth in Section 5.1.  
  
 “Investments” has the meaning set forth in Section
2.1(d). 
  
 “IRS” means the Internal
Revenue Service. 
  
 “knowledge,”
“known” or words of similar import mean (a) with respect to DEFS, the actual knowledge of the officers and directors of DEFS and TEPPCO GP, and (b) with respect to Enterprise, the actual knowledge of the officers and directors of
EPCO or EPE. 
  
 “Laws” means all statutes,
regulations, statutory rules, orders, judgments, decrees and terms and conditions of any grant of approval, permission, authority, permit or license of any court, Governmental Entity, statutory body (including the NYSE) or self-regulatory authority,
but does not include Environmental Laws. 
  
 “LP
Units” has the meaning set forth in the TEPPCO Partnership Agreement. 
  
 “Materiality Requirement” means any requirement in a representation or warranty that a condition, event or state of fact be “material,” correct or true in “all material respects,”
have a “Material Adverse Effect” or be or not be “reasonably expected to have a Material Adverse Effect” (or other words or phrases of similar effect or impact) in order for such condition, event or state of facts to cause such
representation or warranty to be inaccurate. 
  
 “Membership Interest” has the meaning set forth in the Preamble. 
  
 “Notice” has the meaning set forth in Section 6.1. 
  
 “NYSE” means the New York Stock Exchange. 
  
 “Obligations” has the meaning set forth in Section 4.14. 
  
 “Open TEPPCO Position” has the meaning set forth in Section 3.3(w). 
  
 “Partially Owned Entity” means, with respect to a specified
person, any other person that is not a subsidiary of such specified person but in which such specified person, directly or indirectly, owns 10% or more of the equity interests thereof (whether voting or non-voting and including beneficial
interests). 
  
 “PBGC” has the meaning set forth
in Section 3.3(q)(ix). 
  
 “Permitted
Encumbrances” means any liens, title defects, preferential rights or other encumbrances upon any of the relevant person’s property, assets or revenues, whether now owned or hereafter acquired, that are (i) carriers’,
warehousemens’, mechanics’, materialmen’s, repairmen’s or other like liens arising in the ordinary course of business which are not overdue 

  

 4 

 
for a period of more than 60 days or which are being contested in good faith by appropriate proceeding, (ii) pledges or deposits in connection with
workers’ compensation, unemployment insurance and other social security legislation and deposits securing liability to insurance carriers under insurance or self-insurance arrangements, (iii) for Taxes not yet due or which are being contested
in good faith by appropriate proceedings (provided that adequate reserves with respect thereto are maintained on the books of such person or its subsidiaries, as the case may be, in conformity with GAAP), (iv) deposits to secure the
performance of bids, trade contracts (other than for borrowed money), leases, statutory obligations, surety and appeal bonds, performance bonds and other obligations of a like nature incurred in the ordinary course of business, (v) easements,
rights-of-way, restrictions and other similar encumbrances incurred in the ordinary course of business which, in the aggregate, are not substantial in amount and which do not in any case materially detract from the value of the property subject
thereto or materially interfere with the ordinary conduct of the business by such person and its subsidiaries and (vi) created pursuant to construction, operating and maintenance agreements, space lease agreements and other similar agreements, in
each case having ordinary and customary terms and entered into in the ordinary course of business by such person and its subsidiaries. 
  
 “person” includes any individual, firm, partnership, joint venture, venture capital fund, limited liability company, association, trust,
estate, group, body corporate, corporation, unincorporated association or organization, Governmental Entity, syndicate or other entity, whether or not having legal status. 
  
 “Prudent Industry Practices” has the meaning set forth in Section 4.7(d). 
  
 “PUHCA” means the Public Utility Holding Company Act of
1935, as amended. 
  
 “Purchase Price” has the
meaning set forth in Section 2. l(b). 
  
 “Release” means any depositing, spilling, leaking, pumping, pouring, placing, emitting, discarding, emptying, discharging, migrating, injecting, escaping, leaching, dumping, or disposing. 
  
 “Reimbursement Obligations” has the meaning set forth in
Section 4.14. 
  
 “Representative” means,
with respect to any person, such person’s officers, directors or employees, or any investment banker, financial advisor, attorney, accountant or other representative retained by such person. 
  
 “SEC” means the United States Securities and Exchange
Commission.  
  
 “Securities Act” means
the Securities Act of 1933, as amended.  
  
 “Service Standard” has the meaning set forth in Section 4.7(b). 
  
 “Services Agreement” means (i) that certain letter agreement dated as of September 30, 2002 between DEFS and TEPPCO MLP relating to Val
Verde Gas Gathering Company, L.P., (ii) that certain letter agreement dated as of June 19, 2002 between DEFS and TEPPCO MLP relating to Chaparral Pipeline Company, L.P., Quanah Pipeline Company, L.P. and Duke Energy NGL Services, LP and (iii) that
certain letter agreement dated as of March 18, 2003 between DEFS and TEPPCO MLP relating to Jonah Gas Gathering Company. 
  

 5 

 “subsidiary” means with respect to a specified person, any other person (a) that is a
subsidiary as defined in Rule 405 of the Rules and Regulations under the Securities Act of such specified person or (b) of which such specified person or another of its subsidiaries owns beneficially 50% or more of the equity interests. 

 
 “Sureties” has the meaning set forth in Section
4.14. 
  
 “Tax” or “Taxes”
means any taxes, assessments, fees and other governmental charges imposed by any Governmental Entity, including without limitation income, profits, gross receipts, net proceeds, alternative or add-on minimum, ad valorem, value added, turnover,
sales, use, property, personal property (tangible and intangible), environmental, stamp, leasing, lease, user, excise, duty, franchise, capital stock, transfer, registration, license, withholding, social security (or similar), unemployment,
disability, payroll, employment, fuel, excess profits, occupational, premium, windfall profit, severance, estimated, or other charge of any kind whatsoever, including any interest, penalty, or addition thereto, whether disputed or not. 

 
 “Tax Return” means any return, declaration, report, claim
for refund, or information return or statement relating to Taxes, including any schedule or attachment thereto, and including any amendment thereof. 
  
 “TEPPCO Disclosure Letter” means the disclosure letter for this Agreement dated the Execution Date. 
  
 “TEPPCO Easements” has the meaning set forth in Section
3.3(p)(iii).  
  
 “TEPPCO Environmental
Permits” has the meaning set forth in Section 3.3(j).  
  
 “TEPPCO GP” has the meaning set forth in the Preamble.  
  
 “TEPPCO GP Financial Statements” has the meaning set forth in Section 3.3(g)(iii). 
  
 “TEPPCO GP Balance Sheet” means the audited balance sheet of
TEPPCO GP as of December 31, 2003 included as part of the TEPPCO GP Financial Statements. 
  
 “TEPPCO GP LLC Agreement” means that certain Limited Liability Company Agreement of Texas Eastern Products Pipeline Company, LLC. 
  
 “TEPPCO Intellectual Property Rights” has the meaning set forth in Section 3.3(o)(i). 
  
 “TEPPCO Limited Partner Units” means the LP Units of TEPPCO
MLP issued pursuant to the TEPPCO Partnership Agreement. 
  
 “TEPPCO Material Adverse Effect” means any change, effect, event or occurrence with respect to the condition (financial or otherwise), properties, assets, earnings, liabilities, obligations (whether absolute, accrued,
conditional or otherwise), businesses, operations or 

  

 6 

 
results of operations of the TEPPCO Partnership Group Entities (taken as a whole), that is, or could reasonably be expected to be, material and adverse to
the TEPPCO Partnership Group Entities (taken as a whole), material and adverse to TEPPCO GP or that materially and adversely affects the ability of DEFS or TEPPCO GP to consummate the transactions contemplated hereby; provided, however, that
a TEPPCO Material Adverse Effect shall not include any change, effect, event or occurrence with respect to the condition (financial or otherwise), properties, assets, earnings, financial condition, liabilities, obligations (whether absolute,
accrued, conditional or otherwise), businesses, operations or results of operations of any TEPPCO Partnership Group Entity (or any TEPPCO Partially Owned Entity) directly or indirectly arising out of or attributable to (a) changes in the general
state of the industries in which the TEPPCO Partnership Group Entities and the TEPPCO Partially Owned Entities operate to the extent that such changes would have the same general effect on all other companies operating in such industries, or (b)
changes in general economic conditions (including changes in commodity prices) that would have the same general effect on companies engaged in the same lines of business as those conducted by the TEPPCO Partnership Group Entities and the TEPPCO
Partially Owned Entities. 
  
 “TEPPCO MLP” has
the meaning set forth in the Preamble. 
  
 “TEPPCO MLP
Balance Sheet” means the draft consolidated balance sheet of TEPPCO MLP as of December 31, 2004 included as part of the Draft 10-K. 
  
 “TEPPCO MLP Partially Owned Entities” or “TEPPCO Partially Owned Entities” means the Partially Owned Entities held,
directly or indirectly, by TEPPCO MLP. 
  
 “TEPPCO
Operating Partnerships” means TE Products Pipeline Company, Limited Partnership, a Delaware limited partnership, TCTM, L.P., a Delaware limited partnership, and TEPPCO Midstream Companies, L.P., a Delaware limited partnership, collectively.

  
 “TEPPCO Parties” means TEPPCO MLP and TEPPCO
GP. 
  
 “TEPPCO Partnership Agreement” means that
certain Third Amended and Restated Agreement of Limited Partnership of TEPPCO MLP dated as of September 21, 2001. 
  
 “TEPPCO Partnership Group Entities” means TEPPCO GP, TEPPCO MLP and the subsidiaries of TEPPCO MLP. 
  
 “TEPPCO Permits” has the meaning set forth in Section
3.3(j)(ii). 
  
 “TEPPCO Pipeline Assets”
means the pipelines, equipment and other tangible personal property used in connection with the TEPPCO Partnership Group Entities’ pipeline operations. 
  
 “TEPPCO Plans” means all employee benefit plans (as defined in Section 3(3) of ERISA, whether or not subject to ERISA), all employment,
change of control and severance agreements (or consulting agreements with natural persons) and any employee compensation plan, including any pension, retirement, profit sharing, stock or unit option, stock or unit purchase, restricted stock or unit,
bonus, incentive compensation, health, life, disability or fringe benefit plan, contract or arrangement sponsored or maintained by, participated in or contributed 

  

 7 

 
to by or required to be contributed to by, any of the TEPPCO Partnership Group Entities with respect to any current or former Affected Employees or
independent contractors of any of the TEPPCO Partnership Group Entities. 
  
 “TEPPCO SEC Reports” has the meaning set forth in Section 3.3(g)(i). 
  
 “TEPPCO Severance Plan” has the meaning set forth in Section 4.12(e). 
  
 “Texas Courts” has the meaning set forth in Section
6.2. 
  
 “Third Party Payments” has the
meaning set forth in Section 4.7(a). 
  
 “Transition Services” has the meaning set forth in Section 4.7(a). 
  
 Section 1.2 Rules of Construction. The division of this Agreement into articles, sections and other portions and the insertion of headings are for
convenience of reference only and shall not affect the construction or interpretation hereof. Unless otherwise indicated, all references to an “Article” or “Section” followed by a number or a letter refer to the specified Article
or Section of this Agreement. The terms “this Agreement,” “hereof,” “herein” and “hereunder” and similar expressions refer to this Agreement (including the Disclosure Letter hereto) and not to any particular
Article, Section or other portion hereof. Unless otherwise specifically indicated or the context otherwise requires, (a) all references to “dollars” or “$” mean United States dollars, (b) words importing the singular shall
include the plural and vice versa and words importing any gender shall include all genders, (c) “include,” “includes” and “including” shall be deemed to be followed by the words “without limitation,” and (d)
all words used as accounting terms shall have the meanings assigned to them under United States generally accepted accounting principles applied on a consistent basis during the periods involved (“GAAP”). In the event that any date
on which any action is required to be taken hereunder by any of the parties hereto is not a Business Day, such action shall be required to be taken on the next succeeding day that is a Business Day. Reference to any party hereto is also a reference
to such party’s permitted successors and assigns. The Exhibits attached to this Agreement are hereby incorporated by reference into this Agreement and form a part hereof. Unless otherwise indicated, all references to an “Exhibit”
followed by a number or a letter refer to the specified Exhibit to this Agreement. The parties hereto have participated jointly in the negotiation and drafting of this Agreement. In the event an ambiguity or question of intent or interpretation
arises, this Agreement shall be construed as if drafted jointly by the parties hereto and no presumption or burden of proof shall arise favoring or disfavoring any party hereto by virtue of the authorship of any of the provisions of this Agreement.

  
 ARTICLE II 
 PURCHASE AND SALE 
  
 Section 2.1 Closing. 
  
 (a) Closing Date. The closing (the “Closing”) of the transactions contemplated under this Section 2.1 shall be held at the
offices of Vinson & Elkins L.L.P. at 1001 Fannin Street, Houston, Texas 77002 on the Execution Date. The Execution Date is also referred to herein as the “Closing Date.” 
  

 8 

 (b) Purchase of Membership Interest. At the Closing, subject to the terms and conditions of this
Agreement, DEFS shall convey to Enterprise the Membership Interest (such conveyance or assignment to be in a form mutually acceptable to DEFS and Enterprise), free and clear of all Encumbrances, except to the extent created under federal and state
securities laws and the Delaware Limited Liability Company Act, for an aggregate cash amount equal to $1,100,000,000 (the “Purchase Price”). Concurrently with such conveyance, Enterprise shall pay the Purchase Price by delivery to
DEFS of the promissory note substantially in the form attached hereto as Exhibit A and the Security Agreement substantially in the form attached hereto as Exhibit B. 
  
 (c) FIRPTA Certificate. At the Closing, DEFS shall provide Enterprise with a FIRPTA certificate certifying that DEFS
is not a “foreign person” within the meaning of Treasury Regulation 1.1445 2(b). 
  
 (d) TEPPCO Investments. Immediately prior to the Closing, TEPPCO Investments LLC (“Investments”), a wholly owned subsidiary of TEPPCO GP, has forgiven, discharged and terminated all obligations
under or evidenced by that certain $10,000,000 promissory note issued to Investments by DEFS as obligor under such note. 
  
 ARTICLE III 
 REPRESENTATIONS AND
WARRANTIES 
  
 Section 3.1 Representations and Warranties
of DEFS. DEFS represents and warrants to Enterprise that: 
  
 (a) Formation and Standing. DEFS has been duly formed and is validly existing under the Laws of the State of Delaware with full legal and limited liability company power and authority to own, lease and operate its properties and to
conduct its businesses as currently owned and conducted except where, individually or in the aggregate, the failure to be so organized, formed or existing or to have such power or authority could not reasonably be expected to have a material adverse
effect on the ability of DEFS to close the transactions contemplated under this Agreement. DEFS is duly qualified to do business in each jurisdiction in which the nature of the business conducted by it or the ownership or leasing of its properties
requires it to so qualify, except where, individually or in the aggregate, the failure to be so qualified could not reasonably be expected to have a material adverse effect on the ability of DEFS to close the transactions contemplated under this
Agreement. 
  
 (b) Authority and No Conflicts. 

 
 (i) DEFS has all requisite limited liability company power and authority
to enter into this Agreement and to perform its obligations hereunder and to consummate the transactions contemplated hereby. The execution and delivery of this Agreement by DEFS and the consummation by DEFS of the transactions contemplated by this
Agreement have been duly and validly authorized by all necessary limited liability company action on the part of DEFS and its members and no other limited liability company proceedings on the part of DEFS or its members are necessary to authorize
this Agreement or to consummate the transactions contemplated hereby. 
  

 9 

 (ii) This Agreement has been duly executed and delivered by DEFS and constitutes its legal, valid and
binding obligation, enforceable against it in accordance with its terms, except as the same may be limited by bankruptcy, insolvency and other applicable Laws affecting creditors’ rights generally, and by general principles of equity.

  
 (iii) Neither the execution and delivery of this Agreement by
DEFS nor the performance by DEFS of its obligations hereunder and the completion of the transactions contemplated hereby will: 
  
 (A) conflict with, or violate any provision of, the governing documents of DEFS; 
  
 (B) other than obtaining or making, as applicable, any consents, approvals, orders, authorizations, registrations,
declarations or filings which, if not obtained or made, could not, individually or in the aggregate, reasonably be expected to have a TEPPCO Material Adverse Effect, violate or breach any Laws applicable to DEFS; or 
  
 (C) other than obtaining or making, as applicable, any consents, approvals,
orders, authorizations, registrations, declarations or filings which, if not obtained or made, could not, individually or in the aggregate, reasonably be expected to have a TEPPCO Material Adverse Effect, violate or conflict with or result in the
breach of, or constitute a default (or an event that with the giving of notice, the passage of time, or both would constitute a default) under, or entitle any party (with the giving of notice, the passage of time or both) to terminate, accelerate,
modify or call any obligations or rights under any credit agreement, note, bond, mortgage, indenture, deed of trust, contract, agreement, lease, license, franchise, permit, concession, easement or other instrument to which DEFS is a party, or by or
to which DEFS or any of its properties are bound or subject. 
  
 (c) No Consents. No consent, approval, authorization or order of, or notice to, any court or person is required for the consummation by DEFS of the transactions contemplated by this Agreement except those as have already been
obtained or given or those, the failure of which to obtain or give, could not reasonably be expected to have a TEPPCO Material Adverse Effect. 
  
 (d) Membership Interest and General Partner Interest. 
  
 (i) DEFS is the sole owner of the Membership Interest. The Membership Interest has been duly authorized, validly issued, fully paid and non-assessable
(except as set forth in the TEPPCO GP LLC Agreement, for the capital account restoration obligation under the TEPPCO Partnership Agreement and to the extent such non-assessability may be affected by the Delaware Limited Liability Company Act).
Except to the extent created under the federal and state securities Laws and the Delaware Limited Liability Company Act, the Membership Interest is held of record by DEFS, free and clear of Encumbrances. TEPPCO GP owns or holds no assets or
interests other than the general partner interest in TEPPCO MLP and has not since the date of its formation engaged in any business activities whatsoever other than acting as the general partner of TEPPCO MLP. 
  

 10 

 (ii) General Partner Interest. TEPPCO GP is the sole general partner of TEPPCO MLP. TEPPCO GP is
the sole record and beneficial owner of the general partner interest in TEPPCO MLP, and such general partner interest has been duly authorized and validly issued in accordance with the TEPPCO Partnership Agreement. Except for any Encumbrances
arising under the governing documents of any TEPPCO Party, applicable securities Laws or this Agreement, TEPPCO GP owns such general partner interest free and clear of any Encumbrances. 
  
 (e) No Defaults. DEFS is not in default under or violation of, and there has been no event, condition or occurrence
which, after notice or lapse of time or both, would constitute such a default or violation of, or permit the termination of, any term, condition or provision of (i) its governing documents, (ii) any credit agreement, note, bond, mortgage, indenture,
contract, agreement, lease, license, franchise, permit, concession, easement or other instrument to which DEFS is a party or by which DEFS or any of its property is bound or subject, except, in the case of clause (ii), defaults, violations and
terminations which, individually or in the aggregate, could not reasonably be expected to have a TEPPCO Material Adverse Effect. 
  
 (f) Brokerage and Finder’s Fee. No agent, broker, finder, investment banker, financial advisor or similar person will be entitled to any fee,
commission or other compensation in connection with the transactions contemplated by this Agreement on the basis of any action or statement made by DEFS, TEPPCO MLP or TEPPCO GP or any affiliate thereof, or any of their respective partners,
shareholders, members, directors, officers or employees acting on behalf of DEFS, TEPPCO MLP, TEPPCO GP or any affiliate thereof. 
  
 Section 3.2 Representations and Warranties of Enterprise. Enterprise represents and warrants to DEFS that: 
  
 (a) Organization and Standing. Enterprise has been duly organized and
is validly existing under the Laws of its jurisdiction of organization with full legal power and authority to own, lease and operate its properties and to conduct its businesses as currently owned and conducted except where, individually or in the
aggregate, the failure to be so organized or existing or to have such power or authority could not reasonably be expected to have an Enterprise Material Adverse Effect. Enterprise is duly qualified to do business in each jurisdiction in which the
nature of the business conducted by it or the ownership or leasing of its properties requires it to so qualify, except where, individually or in the aggregate, the failure to be so qualified could not reasonably be expected to have an Enterprise
Material Adverse Effect. 
  
 (b) Authority and No
Conflicts. 
  
 (i) Enterprise has all requisite corporate or
limited liability company power and authority to enter into this Agreement and to perform its obligations hereunder and to consummate the transactions contemplated hereby. The execution and delivery of this Agreement by Enterprise and the
consummation of the transactions contemplated by this Agreement have been duly and validly authorized by all necessary corporate or limited liability company action, and no other proceedings on the part of Enterprise are necessary to authorize this
Agreement or to consummate the transactions contemplated hereby. 
  

 11 

 (ii) This Agreement has been duly executed and delivered by Enterprise and constitutes its legal, valid
and binding obligation, enforceable against it in accordance with its terms, except as the same may be limited by bankruptcy, insolvency and other applicable Laws affecting creditors’ rights generally, and by general principles of equity.

  
 (iii) Neither the execution and delivery of this Agreement by
Enterprise nor the performance by Enterprise of its obligations hereunder and the completion of the transactions contemplated hereby, will: 
  
 (A) conflict with, or violate any provision of, the governing documents of Enterprise; 
  
 (B) other than obtaining or making, as applicable, any consents, approvals, orders, authorizations, registrations,
declarations or filings which, if not obtained or made, could not, individually or in the aggregate, reasonably be expected to have an Enterprise Material Adverse Effect, violate or breach any Laws applicable to Enterprise; 
  
 (C) other than obtaining or making, as applicable, any consents, approvals,
orders, authorizations, registrations, declarations or filings which, if not obtained or made, could not, individually or in the aggregate, reasonably be expected to have an Enterprise Material Adverse Effect, violate or conflict with or result in
the breach of, or constitute a default (or an event that with the giving of notice, the passage of time, or both would constitute a default) under, or entitle any party (with the giving of notice, the passage of time or both) to terminate,
accelerate, modify or call any obligations or rights under any credit agreement, note, bond, mortgage, indenture, deed of trust, contract, agreement, lease, license, franchise, permit, concession, easement or other instrument to which Enterprise is
a party or by which Enterprise or its property is bound or subject; or 
  
 (D) except as could not, individually or in the aggregate, reasonably be expected to have an Enterprise Material Adverse Effect, result in the imposition of any Encumbrance upon or require the sale or give any person the right to acquire
any of the assets of Enterprise or restrict, hinder, impair or limit the ability of Enterprise to carry on its business as and where it is now being carried on. 
  

(c) No Consents. No consent, approval, authorization or order of, or notice to, any court or person is required for the consummation of the
transactions contemplated by this Agreement except those as have been obtained or given or those, the failure of which to obtain or give, could not reasonably be expected to have an Enterprise Material Adverse Effect. 
  
 (d) No Defaults. Enterprise is not in default under or violation of,
and there has been no event, condition or occurrence which, after notice or lapse of time or both, would constitute such a default or violation of, or permit the termination of, any term, condition or provision of (i) its governing documents, (ii)
any credit agreement, note, bond, mortgage, indenture, contract, agreement, lease, license, franchise, permit, concession, easement or other instrument to which Enterprise is a party or by which Enterprise or its property is bound or subject,
except, in the case of clause (ii), defaults, violations and terminations which, individually or in the aggregate, could not reasonably be expected to have an Enterprise Material Adverse Effect. 
  

 12 

 (e) Brokerage and Finder’s Fee. Except for Lehman Brothers Inc. and Citigroup Global Markets
Inc. (the fees of which are payable by Enterprise), no agent, broker, finder, investment banker, financial advisor or similar person will be entitled to any fee, commission or other compensation in connection with the transactions contemplated by
this Agreement on the basis of any action or statement made by Enterprise or any of its affiliates, or any of their respective partners, shareholders, members, directors, officers or employees acting on behalf of Enterprise or any affiliate thereof.

  
 (f) Independent Investigation. Enterprise has conducted
its own independent investigation, review and analysis of the business, operations, assets, liabilities, results of operations, financial condition and prospects of the TEPPCO Partnership Group Entities, which investigation, review and analysis was
done by Enterprise and its affiliates and, to the extent Enterprise deemed necessary or appropriate, by its Representatives (it being understood that Enterprise is also relying on the representations, warranties, covenants and conditions in this
Agreement). 
  
 (g) Investment Intent; Investment Experience;
Restricted Securities. In acquiring the Membership Interest, Enterprise is not offering or selling, and shall not offer or sell the Membership Interest, for DEFS in connection with any distribution of any of such Membership Interest, and
Enterprise does not have a participation and shall not participate in any such undertaking or in any underwriting of such an undertaking except in compliance with applicable federal and state securities laws. Enterprise acknowledges that it can bear
the economic risk of its investment in the Membership Interest and has such knowledge and experience in financial and business matters that it is capable of evaluating the merits and risks of an investment in the Membership Interest. Enterprise is
an “accredited investor” as such term is defined in Regulation D under the Securities Act. Enterprise understands that the Membership Interest shall not have been registered pursuant to the Securities Act or any applicable state securities
laws, that the Membership Interest shall be characterized as “restricted securities” under federal securities laws and that under such laws and applicable regulations the Membership Interest cannot be sold or otherwise disposed of without
registration under the Securities Act or an exemption therefrom. 
  
 Section 3.3 Representations and Warranties Concerning TEPPCO GP and TEPPCO MLP. DEFS hereby represents and warrants to Enterprise that: 
  
 (a) Organization and Standing. Each of the TEPPCO Partnership Group Entities has been duly organized or formed and is validly existing under the
Laws of its jurisdiction of organization or formation with full corporate or legal power and authority to own, lease and operate its properties and to conduct its businesses as currently owned and conducted. Each of the TEPPCO Partnership Group
Entities is duly qualified to do business in each jurisdiction in which the nature of the business conducted by it or the ownership or leasing of its properties requires it to so qualify, except where, individually or in the aggregate, the failure
to be so qualified could not reasonably be expected to have a TEPPCO Material Adverse Effect. TEPPCO GP was formed on March 31, 2000. 
  

 13 

 (b) No Defaults. None of the TEPPCO Partnership Group Entities is in default under or violation
of, and there has been no event, condition or occurrence which, after notice or lapse of time or both, would constitute such a default or violation of, or permit the termination of, any term, condition or provision of (i) their respective governing
documents, (ii) any credit agreement, note, bond, mortgage, indenture, contract, agreement, lease, license, franchise, permit, concession, easement or other instrument to which any of the TEPPCO Partnership Group Entities is a party or by which any
of the TEPPCO Partnership Group Entities or any of their respective property is bound or subject, except, in the case of clause (ii), defaults, violations and terminations which, individually or in the aggregate, could not reasonably be expected to
have a TEPPCO Material Adverse Effect. 
  
 (c) No
Conflicts. Neither the execution and delivery of this Agreement by DEFS nor the performance by DEFS of its obligations hereunder and the completion of the transactions contemplated hereby will: 
  
 (i) conflict with, or violate any provision of, the governing documents of
the TEPPCO Partnership Group Entities or the TEPPCO Partially Owned Entities; 
  
 (ii) other than obtaining or making, as applicable, any consents, approvals, orders, authorizations, registrations, declarations or filings which, if not obtained or made, could not, individually or in the aggregate,
reasonably be expected to have a TEPPCO Material Adverse Effect, violate or breach any Laws applicable to the TEPPCO Partnership Group Entities or the TEPPCO Partially Owned Entities; 
  
 (iii) other than obtaining or making, as applicable, any consents, approvals, orders, authorizations, registrations,
declarations or filings which, if not obtained or made, could not, individually or in the aggregate, reasonably be expected to have a TEPPCO Material Adverse Effect, violate or conflict with or result in the breach of, or constitute a default (or an
event that with the giving of notice, the passage of time, or both would constitute a default) under, or entitle any party (with the giving of notice, the passage of time or both) to terminate, accelerate, modify or call any obligations or rights
under any credit agreement, note, bond, mortgage, indenture, deed of trust, contract, agreement, lease, license, franchise, permit, concession, easement or other instrument to which any of the TEPPCO Partnership Group Entities or the TEPPCO
Partially Owned Entities is a party or by which any of the TEPPCO Partnership Group Entities or the TEPPCO Partially Owned Entities or their respective properties are bound or subject; or 
  
 (iv) except as could not, individually or in the aggregate, reasonably be expected to have a TEPPCO Material Adverse
Effect, result in the imposition of any Encumbrance upon or require the sale or give any person the right to acquire any of the assets of any of the TEPPCO Partnership Group Entities or the TEPPCO Partially Owned Entities or restrict, hinder, impair
or limit the ability of any of the TEPPCO Partnership Group Entities or the TEPPCO Partially Owned Entities to carry on their respective businesses as and where they are now being carried on. 
  

 14 

 (d) Capitalization of TEPPCO MLP and Subsidiaries. As of the Execution Date, TEPPCO MLP has no
limited partner interests issued and outstanding other than 62,998,554 TEPPCO Limited Partner Units. 
  
 Each of such TEPPCO Limited Partner Units and the limited partner interests represented thereby have been duly authorized and validly issued in accordance with applicable Laws and the TEPPCO Partnership Agreement, and
are fully paid (to the extent required under the TEPPCO Partnership Agreement) and non-assessable (except to the extent such non-assessability may be affected by Section 17-607 of the Delaware Revised Uniform Limited Partnership Act). Such TEPPCO
Limited Partner Units were not issued in violation of pre-emptive or similar rights or any other agreement or understanding binding on TEPPCO MLP. TEPPCO GP and TEPPCO MLP are the sole record and beneficial owners of the general partner interest and
limited partner interest, respectively, of each of the TEPPCO Operating Partnerships. All of the outstanding equity interests of the subsidiaries of TEPPCO MLP and the TEPPCO MLP Partially Owned Entities owned, directly or indirectly, by TEPPCO MLP
have been duly authorized and are validly issued (in accordance with their respective governing documents), fully paid (to the extent required under the applicable governing documents) and non-assessable (except (1) with respect to general partner
interests, (2) as set forth to the contrary in the applicable governing documents and (3) to the extent such non-assessability may be affected by the Delaware Revised Uniform Limited Partnership Act or the Delaware Limited Liability Company Act) and
were not issued in violation of pre-emptive or similar rights; and all such equity interests are owned, directly or indirectly, by TEPPCO MLP, free and clear of all Encumbrances, except for applicable securities Laws and restrictions on transfers
contained in governing documents. 
  
 (e) Subsidiaries.
Section 3.3(e) of the TEPPCO Disclosure Letter sets forth a list of all of the subsidiaries of TEPPCO MLP and all of the TEPPCO MLP Partially Owned Entities, together with their respective jurisdictions of organization or formation, types of entity,
percentages of equity ownership by TEPPCO MLP or its subsidiaries and record owner or owners of such equity. TEPPCO MLP has no subsidiaries or TEPPCO MLP Partially Owned Entities other than those set forth in Section 3.3(e) of the TEPPCO Disclosure
Letter. 
  
 (f) Derivative Securities; Rights. Except as
described in Section 3.3(f) of the TEPPCO Disclosure Letter: (i) there are no outstanding options, warrants, subscriptions, puts, calls or other rights, agreements, arrangements or commitments (pre-emptive, contingent or otherwise) obligating any of
the TEPPCO Partnership Group Entities to offer, issue, sell, redeem, repurchase, otherwise acquire or transfer, pledge or Encumber any equity interest in any of the TEPPCO Partnership Group Entities; (ii) there are no outstanding securities or
obligations of any kind of any of the TEPPCO Partnership Group Entities which are convertible into or exercisable or exchangeable for any equity interest in any of the TEPPCO Partnership Group Entities or any other person, and none of the TEPPCO
Partnership Group Entities has any obligation of any kind to issue any additional securities or to pay for or repurchase any securities; (iii) there are no outstanding stock appreciation rights, phantom equity or similar rights, agreements,
arrangements or commitments based on the book value, income or any other attribute of any of the TEPPCO Partnership Group Entities; (iv) there are no outstanding bonds, debentures or other evidence of indebtedness of any of the TEPPCO Partnership
Group Entities having the right to vote (or that are exchangeable for or convertible or exercisable into securities having the right to vote) with the holders of the TEPPCO Limited Partner Units on any matter; (v) except as 

  

 15 

 
described in the TEPPCO Partnership Agreement, there are no unitholder agreements, proxies, voting trusts, rights to require registration under securities
Laws or other arrangements or commitments to which any of the TEPPCO Partnership Group Entities is a party or by which any of their respective securities are bound with respect to the voting, disposition or registration of any outstanding securities
of any of the TEPPCO Partnership Group Entities (provided that the foregoing shall not apply to any such restriction on voting or disposition that any holder of TEPPCO Limited Partner Units (other than affiliates of DEFS) may have imposed
upon such TEPPCO Limited Partner Units); and (vi) there are no outstanding registration rights with respect to any TEPPCO Limited Partner Units or any other equity securities of any of the TEPPCO Partnership Group Entities. 
  
 (g) Reports; Financial Statements. 
  
 (i) Since January 1, 2003, TEPPCO MLP has filed or furnished all forms,
reports, schedules, statements and other documents required by Law to be filed or furnished with the SEC by any of the TEPPCO Partnership Group Entities under applicable securities statutes, regulations, policies and rules (collectively, together
with all other documents filed by TEPPCO MLP with the SEC since January 1, 2003 and prior to the Execution Date, the “TEPPCO SEC Reports”). The TEPPCO SEC Reports at the time filed or furnished (x) did not contain any untrue
statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements contained therein not misleading in light of the circumstances under which they were made, (y) complied in all
material respects with the requirements of applicable Laws (including the Securities Act, the Exchange Act and the rules and regulations thereunder) and (z) complied in all material respects with the then applicable accounting standards. The TEPPCO
SEC Reports included all certificates required to be included therein pursuant to Section 13a-14(a) and Section 13a-14(b) of the Exchange Act. Other than filings in connection with Rule 144A offerings with respect to wholly owned subsidiaries of
TEPPCO MLP, no subsidiary of TEPPCO MLP is required to file periodic reports with the SEC, either pursuant to the requirements of the Exchange Act or by contract. 
  
 (ii) Attached as Section 3.3(g)(ii) of the TEPPCO Disclosure Letter is a copy of the draft of the TEPPCO MLP Annual Report
on Form 10-K for the year ended December 31, 2004, which draft was presented to the audit committee of the board of directors of TEPPCO GP (the “Draft 10-K”). The Draft 10-K is substantially complete, the appropriate officers of
TEPPCO GP are prepared to sign the certificates required to be included therein pursuant to Section 13a-14(a) and Section 13a-14(b) of the Exchange Act, management is prepared to deliver the internal control report required by Section 404 of the
Sarbanes-Oxley Act of 2002, and, to the knowledge of DEFS, the outside auditors of TEPPCO MLP are prepared to sign their audit report and attestation to the internal control report included therein. 
  
 (iii) Except for this Agreement and the TEPPCO Plans set forth in Section
3.3(g)(iii) of the TEPPCO Disclosure Letter, the exhibit list included in the Draft 10-K sets forth a true and complete list of (x) any contracts, agreements, documents and other instruments not yet filed by TEPPCO MLP with the SEC but that are
currently in effect and that any of the TEPPCO Partnership Group Entities will be required to or expect to file with or furnish to the SEC as exhibits in an annual or periodic report after the Execution Date and (y) any amendments and modifications
that have not been filed by TEPPCO MLP with the SEC but 

  

 16 

 
are currently in effect to all agreements, documents and other instruments that have been filed by any of the TEPPCO Partnership Group Entities with the SEC
since January 1, 2003. All such exhibits have been made available to Enterprise, as requested. 
  
 (iv) Attached as Section 3.3(g)(iv) of the TEPPCO Disclosure Letter are copies of the audited financial statements for the years ended December 31, 2001,
2002 and 2003 of TEPPCO GP (the “TEPPCO GP Financial Statements”). The consolidated financial statements (including, in each case, any related notes thereto) of TEPPCO MLP contained in any TEPPCO SEC Reports and in the Draft 10-K
and the TEPPCO GP Financial Statements (x) have been prepared in accordance with GAAP (subject, in the case of unaudited financial statements, to the absence of footnote disclosures required by GAAP), (y) complied in all material respects with the
requirements of applicable securities Laws, and (z) fairly present, in all material respects, the consolidated financial positions, results of operations, cash flows, partners’ capital and comprehensive income and changes in accumulated other
comprehensive income, as applicable, of the applicable TEPPCO Partnership Group Entities as of the respective dates thereof and for the respective periods covered thereby, subject, in the case of unaudited financial statements, to normal, recurring
audit adjustments none of which will be material. Except as disclosed on the TEPPCO MLP Balance Sheet or the TEPPCO GP Balance Sheet, none of the TEPPCO Partnership Group Entities has any indebtedness or liability, absolute or contingent, other than
(A) in the case of TEPPCO MLP, liabilities as of December 31, 2004 that are not required by GAAP to be included in the TEPPCO MLP Balance Sheet, (B) in the case of TEPPCO GP, liabilities as of December 31, 2003 that are not required by GAAP to be
included in the TEPPCO GP Balance Sheet, (C) liabilities incurred or accrued in the ordinary course of business consistent with past practice since December 31, 2004 in the case of TEPPCO MLP (or December 31, 2003, in the case of TEPPCO GP) and that
are not material, individually or in the aggregate, or (D) liabilities disclosed in the Draft 10-K or any TEPPCO SEC Reports filed since September 30, 2004. 
  
 (h) Controls. 
  
 (i) The management of TEPPCO GP has (x) implemented disclosure controls and procedures (as defined in Rule 13a-15(e) of the Exchange Act) to ensure that
material information relating to TEPPCO MLP, including its consolidated subsidiaries, is made known to the management of TEPPCO GP by others within those entities, and (y) disclosed, based on its most recent evaluation, to TEPPCO MLP’s outside
auditors and the audit committee of the board of directors of TEPPCO GP (A) all significant deficiencies and material weaknesses in the design or operation of internal controls over financial reporting (as defined in Rule 13a-15(f) of the Exchange
Act) which are reasonably likely to adversely affect TEPPCO MLP’s ability to record, process, summarize and report financial data and (B) any fraud, whether or not material, that involves management or other employees who have a significant
role in TEPPCO MLP’s internal controls over financial reporting. Since January 1, 2003, any material change in internal control over financial reporting required to be disclosed in any TEPPCO SEC Report has been so disclosed. 
  
 (ii) Since January 1, 2003, (x) to the knowledge of DEFS, none of the TEPPCO
Partnership Group Entities, or any Representative of a TEPPCO Partnership Group Entity, has received or otherwise had or obtained knowledge of any material complaint, 

  

 17 

 
allegation, assertion or claim, whether written or oral, regarding the accounting or auditing practices, procedures, methodologies or methods of the TEPPCO
Partnership Group Entities or their respective internal accounting controls relating to periods after January 1, 2003, including any material complaint, allegation, assertion or claim that any of the TEPPCO Partnership Group Entities has engaged in
questionable accounting or auditing practices, and (y) no attorney representing the TEPPCO Partnership Group Entities, whether or not employed by the TEPPCO Partnership Group Entities, has reported evidence of a material violation of securities
Laws, breach of fiduciary duty or similar violation, relating to periods after January 1, 2003, by the officers, directors, employees or agents of any of the TEPPCO Partnership Group Entities to the board of directors of TEPPCO GP or any committee
thereof or, to the knowledge of DEFS, to any director or officer of TEPPCO GP. 
  
 (i) Absence of Certain Changes or Events. 
  
 (i) Except as set forth in Section 3.3(i) of the TEPPCO Disclosure Letter or as disclosed in any TEPPCO SEC Report or the Draft 10-K, between September 30, 2004 and the Execution Date, the business of the TEPPCO
Partnership Group Entities, taken as a whole, has been conducted in the ordinary course consistent with past practices, except in connection with entering into this Agreement. 
  
 (ii) Since September 30, 2004, except as disclosed in any TEPPCO SEC Report or the Draft 10-K, there have not been any
events or conditions that have had, or could reasonably be expected to have, a TEPPCO Material Adverse Effect. 
  
 (j) Compliance; Permits. Except as set forth in Section 3.3(j) of the TEPPCO Disclosure Letter or, in the case of clauses (i) and (iii) below, the
TEPPCO SEC Reports or the Draft 10-K: 
  
 (i) The TEPPCO
Partnership Group Entities are in compliance, and at all times since January 1, 2003 have complied, with all applicable Laws, including all applicable Laws relating to the ownership, use and operation of their properties and assets, other than
non-compliance which could not, individually or in the aggregate, reasonably be expected to have a TEPPCO Material Adverse Effect. 
  
 (ii) TEPPCO GP is in compliance, and at all times that it has been the general partner of the TEPPCO MLP has complied, in all material respects with all
of its obligations under the TEPPCO Partnership Agreement. 
  
 (iii) The TEPPCO Partnership Group Entities are in possession of all franchises, grants, authorizations, licenses, permits, easements, variances, exemptions, consents, certificates, approvals and orders necessary to own, lease and operate
their properties and to lawfully carry on their businesses as they are now being conducted (collectively, the “TEPPCO Permits”), except as would not, individually or in the aggregate, reasonably be expected to have a TEPPCO Material
Adverse Effect. None of the TEPPCO Partnership Group Entities is in conflict with, or in default or violation of any of the TEPPCO Permits, except for any such conflicts, defaults or violations which could not, individually or in the aggregate,
reasonably be expected to have a TEPPCO Material Adverse Effect. 
  

 18 

 (k) Litigation. Except as disclosed in Section 3.3(k) of the TEPPCO Disclosure Letter, in the
TEPPCO SEC Reports or the Draft 10-K or for matters that could not reasonably be expected to have, individually or in the aggregate, a TEPPCO Material Adverse Effect, (i) there are no claims, actions, proceedings (public or private) investigations
or reviews pending or, to the knowledge of DEFS, threatened against any of the TEPPCO Partnership Group Entities by or before any Governmental Entity, and (ii) DEFS has no knowledge of any facts that such persons reasonably believe are likely to
give rise to any such claim, action, proceeding, investigation or review. None of the TEPPCO Partnership Group Entities, nor any of their respective assets and properties, is subject to any outstanding judgment, order, writ, injunction or decree
that has had or could reasonably be expected to have, individually or in the aggregate, a TEPPCO Material Adverse Effect. 
  
 (l) Environmental Matters. Except as disclosed in Schedule 3.3(l) to the TEPPCO Disclosure Letter or in the TEPPCO SEC Reports or for matters or
claims that would not reasonably be expected to have, individually or in the aggregate, a TEPPCO Material Adverse Effect: (a) the TEPPCO Partnership Group Entities and their respective businesses, operations, and properties have been in compliance
for all applicable statutes of limitations and are in compliance with all Environmental Laws and all permits, registrations, licenses, approvals, exemptions, variances, and other authorizations required of the TEPPCO Partnership Group Entities under
Environmental Laws (“TEPPCO Environmental Permits”); (b) the TEPPCO Partnership Group Entities have obtained or filed for all TEPPCO Environmental Permits required for their respective businesses, operations, and properties as they
currently exist and all such TEPPCO Environmental Permits are currently in full force and effect; (c) the TEPPCO Partnership Group Entities and their respective businesses, operations, and properties are not subject to any pending or, to the
knowledge of DEFS, threatened claims, actions, suits, investigations, inquiries or proceedings under Environmental Laws; (d) there have been no Releases of Hazardous Substances on, under or from the properties of the TEPPCO Partnership Group
Entities that have given or may give rise to any obligations within the applicable statutes of limitations under Environmental Laws; (e) none of the TEPPCO Partnership Group Entities has, to the knowledge of DEFS, received any written notice that
remains unresolved asserting an alleged liability or obligation under any Environmental Laws against the TEPPCO Partnership Group Entities with respect to the actual or alleged Hazardous Substance contamination of any property offsite of the
properties of the TEPPCO Partnership Group Entities; (f) to the knowledge of DEFS, there has been no exposure of any person or property to Hazardous Substances in connection with the TEPPCO Partnership Group Entities’ businesses, operations, or
properties that could reasonably be expected to form the basis for any tort claims by third parties for damages or compensation; (g) the TEPPCO Partnership Group Entities have made available to Enterprise all documents requested by Enterprise that
are in the possession of the TEPPCO Partnership Group Entities and relating to their respective businesses, operations, or properties and relating to the TEPPCO Partnership Group Entities’ compliance with or obligations under Environmental
Laws; and (h) none of the TEPPCO Partnership Group Entities is a potentially responsible party under Environmental Laws at any site that is on the National Priorities List, and no real property owned by any of the TEPPCO Partnership Group Entities
is on the Comprehensive Environmental Response, Compensation and Liability Information System list. 
  

 19 

 (m) Contracts. Except for contracts filed as exhibits to the TEPPCO SEC Reports and TEPPCO Plans
(other than with respect to clause (viii)), Section 3.3(m) of the TEPPCO Disclosure Letter lists as of the Execution Date all written or oral contracts, agreements, guarantees, leases and executory commitments to which any of the TEPPCO Partnership
Group Entities are a party or by which their assets are bound and which fall within any of the following categories: (i) contracts which would have the effect of limiting the freedom of any of the Enterprise Partnership Group Entities or the TEPPCO
Partnership Group Entities to compete in any line of business or in any geographic area, (ii) contracts relating to any outstanding commitment for capital expenditures in excess of $2,000,000 which are not included in AFEs for projects reflected in
the TEPPCO MLP capital budget for 2005, a copy of which is attached to Section 3.3(m) of the TEPPCO Disclosure Letter; (iii) contracts with any labor union or organization, (iv) indentures, mortgages, liens, promissory notes, loan agreements,
guarantees or other arrangements relating to the borrowing of money by any of the TEPPCO Partnership Group Entities, (v) contracts providing for the acquisition or disposition of assets or businesses with a purchase price of $5,000,000 or more; (vi)
contracts containing provisions triggered by change of control of any of the TEPPCO Partnership Group Entities or other similar provisions, (vii) contracts in favor of directors or officers that provide rights to indemnification, and (viii)
contracts (including those filed as exhibits to the TEPPCO SEC Reports and TEPPCO Plans) between one or more TEPPCO Partnership Group Entities and DEFS or one or more affiliates of DEFS (other than the TEPPCO Partnership Group Entities). Except as
disclosed in Section 3.3(m) of the TEPPCO Disclosure Letter, the TEPPCO SEC Reports or the Draft 10-K, (x) all such contracts (including those filed as exhibits to the TEPPCO SEC Reports) and all other contracts that are individually material to the
business or operations of the TEPPCO Partnership Group Entities taken as a whole are valid and binding obligations of the TEPPCO Partnership Group Entities that are parties thereto and, to the knowledge of DEFS, the valid and binding obligation of
each other party thereto except such contracts which if not so valid and binding could not, individually or in the aggregate, reasonably be expected to have a TEPPCO Material Adverse Effect and (y) no TEPPCO Partnership Group Entity and, to the
knowledge of DEFS, no other party to any such contract is in breach of or in default under or has the right to terminate (upon notice or otherwise) any such contract except for such breaches, defaults that, and rights to terminate which, if
exercised, could not reasonably be expected to have, individually or in the aggregate, a TEPPCO Material Adverse Effect. True and complete copies of all such contracts have been delivered or have been made available to Enterprise as requested by
Enterprise. 
  
 (n) Restrictions on Business Activities.
Except as set forth in Section 3.3(n) of the TEPPCO Disclosure Letter, there is no agreement, judgment, injunction, order or decree binding upon any of the TEPPCO Partnership Group Entities that has or could be reasonably expected to have the effect
of prohibiting, restricting or materially impairing any business practice of any of the TEPPCO Partnership Group Entities, any acquisition of property by any of the TEPPCO Partnership Group Entities, the purchase of goods or services from any party,
the hiring of any individual or groups of individuals or the conduct of business by any of the TEPPCO Partnership Group Entities as currently conducted. 
  

 20 

 (o) Intellectual Property. 
  
 (i) Except for the items listed in Section 3.3(o) of the TEPPCO Disclosure Letter, the TEPPCO Partnership Group Entities,
directly or indirectly, own, license or otherwise have legally enforceable rights to use all patents, patent rights, trademarks, trade names, service marks, copyrights and any applications therefore, technology, know-how, computer software and
applications and tangible or intangible proprietary information or materials, that are used in the business of the TEPPCO Partnership Group Entities as presently conducted (the “TEPPCO Intellectual Property Rights”) and each such
ownership, license, and right to use will not be adversely affected by the transactions contemplated by this Agreement. Upon satisfaction of the obligations of DEFS pursuant to Section 4.2 of this Agreement, TEPPCO MLP will own, license or
otherwise have legally enforceable rights to use intellectual property of the type described in this Section 3.3(o) sufficient to operate the business of the TEPPCO Partnership Group Entities consistent with past practices. 
  
 (ii) In the case of TEPPCO Intellectual Property Rights owned by any of the
TEPPCO Partnership Group Entities, such TEPPCO Partnership Group Entities own such TEPPCO Intellectual Property Rights free and clear of any Encumbrances (other than Permitted Encumbrances). One or more of the TEPPCO Partnership Group Entities have
an adequate right to the use of the TEPPCO Intellectual Property Rights or the material covered thereby in connection with the services or products in respect of which such TEPPCO Intellectual Property Rights are being used except where the lack of
any such right could not reasonably be expected to have, individually or in the aggregate, a TEPPCO Material Adverse Effect. None of the TEPPCO Partnership Group Entities has received any written notice or claim, or any other information, stating
that the manufacture, sale, licensing, or use of any of the services or products of any of the TEPPCO Partnership Group Entities as now manufactured, sold, licensed or used or proposed for manufacture, sale, licensing or use by any of the TEPPCO
Partnership Group Entities in the ordinary course of their business as presently conducted infringes on any copyright, patent, trade mark, service mark or trade secret of a third party except where such infringement could not reasonably be expected
to have, individually or in the aggregate, a TEPPCO Material Adverse Effect. None of the TEPPCO Partnership Group Entities has received any written notice or claim, or any other information, stating that the use by any of the TEPPCO Partnership
Group Entities of any trademarks, service marks, trade names, trade secrets, copyrights, patents, technology or know-how and applications used in their business as presently conducted infringes on any other person’s trademarks, service marks,
trade names, trade secrets, copyrights, patents, technology or know-how and applications, except where such infringement could not reasonably be expected to have, individually or in the aggregate, a TEPPCO Material Adverse Effect. None of the TEPPCO
Partnership Group Entities has received any written notice or claim, or any other information, challenging the ownership by any of the TEPPCO Partnership Group Entities or the validity of any of the TEPPCO Intellectual Property Rights except where
the absence of any such ownership could not reasonably be expected to have, individually or in the aggregate, a TEPPCO Material Adverse Effect. All registered patents, trademarks, service marks and copyrights held by any of the TEPPCO Partnership
Group Entities are subsisting, except to the extent any failure to be subsisting could not reasonably be expected to have, individually or in the aggregate, a TEPPCO Material Adverse Effect. To the knowledge of DEFS, there is no unauthorized use,
infringement or misappropriation of any of the TEPPCO Intellectual Property Rights by any third party, 
  
  

 21 

 
including any employee or former employee of any of the TEPPCO Partnership Group Entities. No TEPPCO Intellectual Property Right is subject to any known
outstanding decree, order, judgment, or stipulation restricting in any manner the licensing thereof by any of the TEPPCO Partnership Group Entities. 
  
 (p) Property. 
  
 (i) Immediately after the Closing TEPPCO MLP will own or have the right to use tangible personal property sufficient to operate the businesses of the
TEPPCO Partnership Group Entities consistent with past practices. 
  
 (ii) Except for Permitted Encumbrances or failures that could not reasonably be expected to have, individually or in the aggregate, a TEPPCO Material Adverse Effect, the TEPPCO Partnership Group Entities have good and indefeasible title or
enforceable rights to use (or, with respect to the TEPPCO Pipeline Assets, title to or interest in the applicable TEPPCO Pipeline Assets sufficient to enable the TEPPCO Partnership Group Entities to conduct their businesses with respect thereto
without interference as it is currently being conducted) all their properties and assets, whether tangible or intangible, real, personal or mixed, free and clear of all liens. 
  
 (iii) Except for violations that could not reasonably be expected to have, individually or in the aggregate, a TEPPCO
Material Adverse Effect, the businesses of the TEPPCO Partnership Group Entities have been and are being operated in a manner which does not violate the terms of any easements, rights of way, permits, servitudes, licenses, leasehold estates and
similar rights relating to real property (collectively, “TEPPCO Easements”) used by the TEPPCO Partnership Group Entities in such businesses. All TEPPCO Easements are valid and enforceable in accordance with their terms, except as
the enforceability thereof may be affected by bankruptcy, insolvency or other Laws of general applicability affecting the rights of creditors generally or principles of equity, and grant the rights purported to be granted thereby and all rights
necessary thereunder for the current operation of such businesses, except where the failure of any such TEPPCO Easement to be valid and enforceable or to grant the rights purported to be granted thereby or necessary thereunder would have a TEPPCO
Material Adverse Effect. Except as set forth in Section 3.3(p)(iii) of the TEPPCO Disclosure Letter, there are no gaps in the TEPPCO Easements that would impair the conduct of such businesses in a manner that could reasonably be expected to have,
individually or in the aggregate, a TEPPCO Material Adverse Effect, and no part of the TEPPCO Pipeline Assets is located on property that is not owned in fee by a TEPPCO Partnership Group Entity or subject to an easement in favor of a TEPPCO
Partnership Group Entity, where the failure of such TEPPCO Pipeline Asset to be so located could reasonably be expected to have, individually or in the aggregate, a TEPPCO Material Adverse Effect. 
  
 (q) Employee Benefit Plans; ERISA. 
  
 (i) Section 3.3(q)(i) of the TEPPCO Disclosure Letter sets forth a complete
and accurate list of all TEPPCO Plans. With respect to each TEPPCO Plan, as applicable, true and complete copies of (A) the TEPPCO Plan documents (including all amendments thereto), (B) the summary plan description, (C) the funding instrument, (D)
the 

  

 22 

 
most recent favorable determination letter issued by the IRS, and (E) the most recent actuarial valuation report and most recent asset liability study have
been furnished to Enterprise. Except for the TEPPCO Plans, none of the TEPPCO Partnership Group Entities maintains or has any liability or obligations, fixed, contingent or otherwise, with respect to any other employee benefit or compensation plan,
program, policy, arrangement or agreement. 
  
 (ii) With respect
to the TEPPCO Plans, all contributions required to be made to or pursuant to the terms of each of the TEPPCO Plans or applicable Law by the TEPPCO Partnership Group Entities have been timely made or accrued on the financial statements of the TEPPCO
Partnership Group Entities. 
  
 (iii) The TEPPCO Plans have been
maintained, operated and administered, in all material respects, in accordance with their terms and all applicable Laws. 
  
 (iv) Except as otherwise set forth in Section 3.3(q)(iv) of the TEPPCO Disclosure Letter, neither the execution and delivery of this Agreement nor the
consummation of the transactions contemplated hereby (either alone or in conjunction with another event, such as termination of employment) will result in (A) any payment becoming due to any employee or director of any of the TEPPCO Partnership
Group Entities or being nondeductible under section 280G of the Code or (B) the vesting of any compensation or benefit payable to any employee or director of any of the TEPPCO Partnership Group Entities. 
  
 (v) The IRS has issued a favorable determination letter with respect to each
TEPPCO Plan that is intended to be a qualified plan under section 401(a) of the Code and each such TEPPCO Plan has been operated and administered in all material respects in accordance with its terms and applicable Law, except for such compliance
failures that, individually or in the aggregate, may be corrected under the EPCRS program of the IRS without material liability to the TEPPCO Partnership Group Entities. 
  
 (vi) There are no pending or, to the knowledge of DEFS, threatened actions, suits, audits, investigations, claims or
proceedings against or relating to any TEPPCO Plan (other than routine claims for benefits thereunder). 
  
 (vii) Except as set forth in Section 3.3(q)(vii) of the TEPPCO Disclosure Letter, each TEPPCO Plan covers only employees or directors of the TEPPCO
Partnership Group Entities. No TEPPCO Plan is a multiemployer plan as defined in Section 3(37) of ERISA. 
  
 (viii) Except as set forth in Section 3.3(q)(viii) of the TEPPCO Disclosure Letter, each TEPPCO Plan that is not a DEFS Plan may be unilaterally
terminated at any time by any of the TEPPCO Partnership Group Entities without liability, other than for benefits accrued thereunder prior to such termination. 
  

(ix) As to any TEPPCO Plan subject to Title IV of ERISA, there has been no event or condition which presents the material risk of plan termination by
the Pension Benefit Guaranty Corporation (“PBGC”), no accumulated funding deficiency, whether or not waived, within the meaning of Section 302 of ERISA or section 412 of the Code has been incurred, no reportable event within the
meaning of Section 4043 of ERISA (for which the 

  

 23 

 
disclosure requirements of Regulation section 4043.1 et seq., promulgated by the PBGC, have not been waived) has occurred, no notice of intent to terminate
the plan has been given under Section 4041 of ERISA, no proceeding has been instituted under Section 4042 of ERISA to terminate the plan and no liability to the PBGC has been incurred (other than for premium payments under Section 4007 of ERISA).

  
 (x) No act, omission or transaction has occurred which would
result in imposition on any of the TEPPCO Partnership Group Entities or any indemnitee thereof of (A) breach of fiduciary liability damages under Section 409 of ERISA, (B) a civil penalty assessed pursuant to Section 502 of ERISA, or (C) a Tax
imposed pursuant to Chapter 43 of Subtitle D of the Code. 
  
 (r)
Labor Matters; Employees. 
  
 (i) Section 3.3(r) of the
TEPPCO Disclosure Letter sets forth a true and complete list as of the Execution Date of all employees of the TEPPCO Partnership Group Entities and all other full-time DEFS employees who work substantially or full time on TEPPCO Partnership Group
Entity matters, together with their respective titles and employers. Except as otherwise set forth in Section 3.3(r) of the TEPPCO Disclosure Letter, all individuals who work substantially full time on TEPPCO Partnership Group Entities’ matters
are employees of one of the TEPPCO Partnership Group Entities and no Affected Employee is included in a unit of employees covered by a collective bargaining agreement. None of the TEPPCO Partnership Group Entities is a party to or subject to a
collective bargaining agreement. No union certification petition has been filed (with service of process having been made on a TEPPCO Partnership Group Entity), or to the knowledge of DEFS, any union organization activity threatened, that relates to
Affected Employees. 
  
 (ii) Except as disclosed in the TEPPCO
SEC Reports or the Draft 10–K, each of the TEPPCO Partnership Group Entities is in compliance with all laws, rules, regulations and orders relating to the employment of labor, including all such laws, rules, regulations and orders relating to
wages, hours, collective bargaining, discrimination, civil rights, safety and health, workers’ compensation and the collection and payment of withholding or social security taxes and similar taxes, except where the failure to comply would not,
individually or in the aggregate, reasonably be expected to have a TEPPCO Material Adverse Effect. 
  
 (s) Insurance. Each of the TEPPCO Partnership Group Entities and their respective businesses and properties are, and have been continuously since
January 1, 2003, insured by reputable and financially responsible insurers in amounts and against risks and losses as are customary for companies conducting their respective businesses. The insurance policies covering the TEPPCO Partnership Group
Entities and their respective businesses and properties are in all material respects in full force and effect in accordance with their terms, no notice of cancellation or termination has been received, and there is no existing default or event
which, with the giving of notice or lapse of time or both would constitute a default thereunder. Section 3.3(s) of the TEPPCO Disclosure Letter sets forth a correct and complete list of all such policies and, with respect to each such policy, a
correct and complete description of (i) the scope of coverage, (ii) deductibles and similar amounts and retentions, (iii) the aggregate limits and 

  

 24 

 
available coverage (if less than the aggregate limits) as of the Execution Date and (iv) whether such policy is written on a “claims made” or
“occurrence” basis. Except as set forth in Section 3.3(s) of the TEPPCO Disclosure Letter, there are no outstanding claims made by any of the insured parties in excess of the deductibles identified on Section 3.3(s) of the TEPPCO
Disclosure Letter that are not covered under such policies, and, to the knowledge of DEFS, there has not occurred any event that might reasonably form the basis of any claim in excess of the deductibles identified on Section 3.3(s) of the TEPPCO
Disclosure Letter that is not covered under such policies. 
  
 (t)
Taxes. 
  
 (i) Except as set forth in Section 3.3(t)(i)
of the TEPPCO Disclosure Letter, (A) each of the TEPPCO Partnership Group Entities has filed when due, after giving effect to applicable extensions, all Tax Returns required to be filed with the IRS or other applicable Governmental Entity through
the date hereof; (B) all items of income, gain, loss, deduction and credit or other items required to be included in each such Tax Return have been so included and each such Tax Return is true, complete and correct in all material respects; (C) each
of the TEPPCO Partnership Group Entities has timely paid or has provided an adequate accrual for all Taxes for which such entity has liability and are or have become due (whether or not shown on any such Tax Return), and has withheld and paid to the
appropriate Governmental Entity any Tax that it is required by Applicable Law to withhold and pay to a Governmental Entity on or before the date hereof; (D) no claim has been made by any Governmental Entity in a jurisdiction in which any of the
TEPPCO Partnership Group Entities does not currently file a Tax Return that it is or may be subject to Tax by such jurisdiction; (E) none of the TEPPCO Partnership Group Entities has entered into any agreement or arrangement with any Governmental
Entity that requires any of the TEPPCO Partnership Group Entities to take or refrain from taking any action; (F) none of the TEPPCO Partnership Group Entities is a party to any agreement or arrangement, whether written or unwritten, providing for
the payment of Taxes, payment of Tax losses, payment of Tax indemnification payments, the sharing or allocation of Taxes, entitlements to refunds or similar Tax matters, and no payments are due or will become due by any of the TEPPCO Partnership
Group Entities pursuant to any such agreement or arrangement; (G) none of the TEPPCO Partnership Group Entities has elected to be treated as a corporation for Tax purposes; (H) there is no written claim against any of the TEPPCO Partnership Group
Entities for any Taxes, and no assessment, deficiency or adjustment has been asserted, proposed, or threatened in writing with respect to any Tax Return of or with respect to any of the TEPPCO Partnership Group Entities; (I) there is not in force
any extension of time with respect to the due date for the filing of any Tax Return of or with respect to any of the TEPPCO Partnership Group Entities or any waiver or agreement for any extension of time for the assessment or payment of any Tax of
or with respect to any of the TEPPCO Partnership Group Entities; (J) none of the TEPPCO Partnership Group Entities will be required to include any amount in income for any taxable period beginning after December 31, 2003 as a result of a change in
accounting method for any taxable period ending on or before the Closing Date or pursuant to any agreement with any Governmental Entity with respect to any such taxable period; (K) none of the TEPPCO Partnership Group Entities has been a member of
an affiliated group filing a consolidated federal income Tax Return or has any liability for the Taxes of any person under Treasury Regulation Section 1.1502-6 (or any similar provision of state, local, or foreign Law), as a transferee or successor,
by contract, or otherwise; (L) at least 90% of the gross 

  

 25 

 
income of TEPPCO MLP for each taxable year since its formation has been from sources that constitute “qualifying income” within the meaning of
section 7704(d) of the Code, (M) none of the TEPPCO Partnership Group Entities has any material liability for Taxes other than those incurred in the ordinary course of business and in respect of which adequate reserves are being maintained in
accordance with GAAP; (N) There are no Encumbrances related to Taxes upon any asset of any of a TEPPCO Partnership Group Entities except for liens arising as a matter of applicable Law relating to current Taxes not yet due; (O) TEPPCO GP is properly
disregarded as an entity separate from its owner pursuant to Treas. Reg. § 301.7701-3; and (P) none of the TEPPCO Partnership Group Entities has entered into any transaction that is subject to the reporting requirements of Treas. Reg. §
1.6011-4 or any predecessor thereto. 
  
 (ii) Section 3.3(t)(ii)
of the TEPPCO Disclosure Letter lists all federal or state income and franchise Tax Returns filed by any of the TEPPCO Partnership Group Entities or any affiliated, consolidated, combined, unitary or similar group of which any the TEPPCO Partnership
Group Entities is or was a member, (A) that are as of the date hereof the subject of audit, (B) in respect of which there is any other suit, action, investigation or claim in progress by any Governmental Entity or (C) in respect of which any issue
has been raised by any taxing authority at an earlier time that is reasonably expected to be raised at a later time. 
  
 (iii) None of the TEPPCO Partnership Group Entities has made any payment, is obligated to make any payment, or is a party to any agreement that under
certain circumstances could obligate it to make any payment that will not be deductible under Section 280G of the Code. 
  
 (iv) Each of the TEPPCO Partnership Group Entities treated as partnerships for federal income tax purposes have currently effective elections under
Section 754 of the Code. 
  
 (u) Regulatory Proceedings.
Except as set forth in Section 3.3(u) of the TEPPCO Disclosure Letter, none of the TEPPCO Partnership Group Entities, all or part of whose rates or services are regulated by a Governmental Entity, is a party to any proceeding before a Governmental
Entity which could reasonably be expected to result in orders having a TEPPCO Material Adverse Effect (except to the extent that such orders would have the same general effect on other companies operating in the industries in which the TEPPCO
Partnership Group Entities operate), nor has written notice of any such proceeding been received by any of the TEPPCO Partnership Group Entities. 
  
 (v) Regulation as a Utility. None of the TEPPCO Partnership Group Entities is (i) a “public-utility company” or a “holding
company” or (ii) a “subsidiary company” or an “affiliate” of a “public-utility company” or a “holding company,” as such terms are defined in PUHCA. 
  
 (w) Futures Trading and Fixed Price Exposure. Prior to the Execution
Date and in the ordinary course of business, TEPPCO MLP has established risk parameters to restrict the level of risk that the TEPPCO Partnership Group Entities are authorized to take with respect to the open position resulting from all physical
commodity transactions, exchange traded futures and options and over-the-counter derivative instruments (the “Open TEPPCO Position”) and 

  

 26 

 
monitors the compliance by the TEPPCO Partnership Group Entities with such risk parameters. Such risk parameters as of the Execution Date are set forth on
Section 3.3(w) of the TEPPCO Disclosure Letter. Such risk parameters may be modified only by the TEPPCO MLP. The Open TEPPCO Position is within such risk parameters. 
  
 (x) Customers and Suppliers. Except as set forth in Section 3.3(x) of the TEPPCO Disclosure Letter, to the knowledge
of DEFS, neither DEFS nor any of the TEPPCO Partnership Group Entities has received any written notice that any shipper or customer will discontinue its business relationship with any of the TEPPCO Partnership Group Entities and no such action has
been threatened by any shipper or customer, which discontinuation would reasonably be expected to have a TEPPCO Material Adverse Effect. 
  
 (y) Books and Records. 
  
 (i) TEPPCO GP (A) makes and keeps books, records and accounts, which, in reasonable detail, accurately and fairly reflect the transactions and
dispositions of assets and (B) maintains systems of internal accounting controls sufficient to provide reasonable assurances that (I) transactions are executed in accordance with management’s general or specific authorization; (II) transactions
are recorded as necessary to permit preparation of financial statements in conformity with GAAP and to maintain accountability for assets; (III) access to assets is permitted only in accordance with management’s general or specific
authorization; and (IV) the recorded accountability for assets is compared with existing assets at reasonable intervals and appropriate action is taken with respect to any differences. 
  
 (ii) The minute books and other similar records of the TEPPCO Partnership Group Entities contain true and complete copies
of all actions taken at all meetings of the board of directors of TEPPCO GP, and any committees thereof, and the limited partners of TEPPCO MLP and all written consents executed in lieu of any such meetings. True and complete copies of all such
minute books and other similar records have been made available to Enterprise. 
  
 ARTICLE IV 
 COVENANTS AND AGREEMENTS 
  
 Section 4.1 Confidentiality. For a period of 24 months after the
Closing Date, DEFS and its affiliates shall not, directly or indirectly, disclose to any person any confidential information, in any form, whether acquired prior to or after the Closing Date, relating to the business and operations of the TEPPCO
Partnership Group Entities; provided, however, that this obligation shall not apply to information that is or becomes generally available to the public other than as a result of disclosure by DEFS or its affiliates or Representatives and
information that becomes available to DEFS and its affiliates on a non-confidential basis from a source other than Enterprise and its affiliates (including the TEPPCO Partnership Group Entities) and Representatives provided that such source
is not known to DEFS or its affiliates to be bound by a confidentiality agreement with Enterprise or such affiliates. Notwithstanding the foregoing, DEFS may disclose such confidential information if required by Law. After the Closing Date, DEFS and
its affiliates shall, to the extent requested by Enterprise, return to Enterprise or destroy all information not in the public domain or not generally known in the industry, in any form, whether acquired prior to or after the Closing Date, relating
to Enterprise or the TEPPCO Partnership Group Entities. 
  

 27 

 Section 4.2 TEPPCO Asset Separation. 
  
 (a) DEFS shall, and shall cause its affiliates to, execute and deliver, or
cause to be executed and delivered, such instruments of assignment, transfer, conveyance, endorsement, direction or authorization and take such other action as may be necessary to transfer to one of the TEPPCO Partnership Group Entities all of the
right, title and interest of DEFS or any of its affiliates in assets (including the types of assets described in Section 4.2 of the TEPPCO Disclosure Letter) that are currently used in the business of the TEPPCO Partnership Group Entities (including
those used in the ordinary course of business) but that are owned by DEFS or any of its affiliates (other than a member of the TEPPCO Partnership Group Entities); provided, however, that the assets included in this Section 4.2 shall specifically
exclude DEFS’s and its affiliates’ phone systems, DEFS’s Denver and Midland offices, DEFS’s Houston office located at 5718 Westheimer Road and all assets of Duke Energy Corporation and its affiliates (but not including for this
purpose DEFS or any of its subsidiaries) other than software and hardware of Duke Energy Corporation and any such affiliates as appropriate. In addition, where a joint use agreement would be appropriate, the parties agree to enter into such an
agreement on commercially reasonable terms. 
  
 (b) Enterprise
shall cause the TEPPCO Partnership Group Entities to assign and transfer to DEFS all of the right, title and interest of the TEPPCO Partnership Group Entities or any of their affiliates in the office lease in Oklahoma City, Oklahoma leased by a
TEPPCO Partnership Group Entity but used solely for the business of DEFS or, if such lease is not assignable, to maintain such lease in effect for the remaining term thereof provided that DEFS shall reimburse the TEPPCO Partnership Group Entities
for all costs incurred by the TEPPCO Partnership Group Entities in connection with such lease. 
  
 Section 4.3 Commercially Reasonable Efforts; Further Assurances. Upon the terms and subject to the conditions hereof, each party hereto shall use its commercially reasonable efforts to take, or cause to be
taken, all appropriate action, and to do or cause to be done, all things necessary, proper or advisable under applicable Laws to consummate and make effective the transactions contemplated under this Agreement. Without limiting the foregoing but
subject to the other terms of this Agreement, the parties hereto agree that, from time to time, each of them will execute and deliver, or cause to be executed and delivered, such instruments of assignment, transfer, conveyance, endorsement,
direction or authorization as may be necessary to consummate and make effective such transactions. 
  
 Section 4.4 No Public Announcement. No party hereto shall issue any other press release or make any other public announcement concerning this
Agreement and the transactions contemplated hereby without prior consultation with the other party hereto. Notwithstanding the foregoing, DEFS may respond to inquiries from securities analysts and the news media to the extent necessary to respond to
such inquiries, provided that such responses are in compliance with applicable securities Laws. 
  

 28 

 Section 4.5 Expenses. All costs and expenses incurred in connection with this Agreement, including
legal fees, accounting fees, financial advisory fees and other professional and non-professional fees and expenses, shall be paid by the party hereto incurring such expenses. 
  
 Section 4.6 Termination of Services Agreement. For a period of one year following the Closing Date, DEFS shall not,
and shall cause its affiliates not to, terminate any of the Services Agreements; provided, however, that Enterprise agrees that the services provided under such Services Agreements will be earlier modified or terminated, as appropriate, as
the Affected Employees who are employees of DEFS are transferred to TEPPCO GP or its affiliates or terminated from DEFS employment. 
  
 Section 4.7 Transition Services. 
  
 (a) In order to facilitate the full transition of operating activities and functions in TEPPCO MLP’s business following the Execution Date, for a
period of one year commencing on the Execution Date, upon the request from time to time from Enterprise on behalf of TEPPCO GP, DEFS shall provide or cause to be provided to TEPPCO GP support services of the same or substantially similar nature
which DEFS or its affiliates have provided to TEPPCO GP during the twelve months immediately preceding the Execution Date, including payroll and employee benefit plan administrative services, and shall second to TEPPCO GP, for the Benefits
Transition Services Period, the Affected Employees who are employees of DEFS on the same basis as such employees were provided to TEPPCO GP immediately prior to the Closing (“Transition Services”); provided, however, that
Enterprise shall use reasonable commercial efforts to cause such Transition Services to be provided by Enterprise or its affiliates as promptly as practicable after the Closing and in no event shall the payroll and employee benefit plan
administrative services be provided after April 30, 2005 (the “Benefits Transition Services Period”). DEFS shall perform or cause to be performed the Transition Services in accordance with the Service Standard (as defined below).
TEPPCO GP, upon not less than ten days’ written notice from Enterprise to DEFS, at any time and from time to time may, as of the date set forth in that notice, terminate any or all of the Transition Services. If DEFS makes any payments to third
parties on behalf of TEPPCO GP in the process of providing Transition Services (such as paying payroll to TEPPCO GP employees on behalf of TEPPCO GP), TEPPCO GP will reimburse DEFS for the actual out-of-pocket amount of such payments actually made
by DEFS (“Third Party Payments”). TEPPCO GP also shall reimburse DEFS for 110% of the Direct Costs (as defined below) incurred by DEFS in providing the Transition Services provided in accordance with this Section 4.7 and the
Service Standard. No later than the tenth Business Day of each calendar month, beginning with the calendar month immediately following the Closing, DEFS will submit an invoice to TEPPCO GP for such Third Party Payments and Direct Costs incurred
during the prior calendar month which invoice shall include reasonable supporting documentation such as the nature and amount of Third Party Payments and Direct Costs and the Transition Services to which they are attributable. If the Execution Date
is on a day other than the last day of a month, the invoice shall be only for those Transition Services provided from the Execution Date until the end of the month in which the Closing took place. TEPPCO GP shall pay the undisputed portion of each
invoice within 30 days after its receipt. Records relating to the Transition Services and invoices shall be maintained by DEFS for a period of two years after an invoice is paid by TEPPCO GP. Upon reasonable prior notice, TEPPCO GP (and its
representatives and 

  

 29 

 
agents) shall have the right to audit and inspect, at its own expense, the books, records and other documents applicable to the Transition Services and
invoices during normal business hours at DEFS’s Denver, Colorado location for a period of two years following the date an invoice is delivered to TEPPCO GP. Notwithstanding the foregoing, DEFS and its affiliates shall have no obligation
pursuant to this Section 4.7 with regard to any comparable service provided by DEFS or any of its affiliates to the extent that Enterprise or its affiliates can offer the same or substantially the same service to the TEPPCO Partnership Group
Entities at no out-of-pocket incremental cost. 
  
 (b) As used in
this Section 4.7 the term “Service Standard” means, with respect to the standard of performance for the Transition Services performed or caused to be performed under this Section 4.7, the good-faith undertaking, on a
commercially reasonable basis, to perform the Transition Services (i) in at least the same quality and manner as the same or comparable services were provided by DEFS or its affiliates during the twelve months immediately preceding the Execution
Date, and (ii) in all material respects in compliance with all applicable Laws, Environmental Laws and Prudent Industry Practices (as defined below). 
  
 (c) As used in this Section 4.7, the term “Direct Costs” means the costs or expenses other than Third Party Payments actually
incurred by DEFS and affiliates of DEFS to employees and third parties directly attributable to the provision of Transition Services pursuant to this Section 4.7, including a portion of the wages, employee benefits and employment taxes of the
DEFS employees providing such services based upon how much time such employees spend providing such services relative to their other work, but excluding any overhead of DEFS and any overhead and/or profit components that might be charged by an
affiliate of DEFS to DEFS. 
  
 (d) As used in this Section
4.7, the term “Prudent Industry Practices” means, at a particular time, any of the practices, methods and acts which, in the exercise of reasonable judgment, will result in the proper operation and maintenance of the assets
owned by TEPPCO MLP and shall include without limitation, the practices, methods and acts engaged in or approved by a significant portion of the industry at such time with respect to assets of the same or similar types as the assets owned by TEPPCO
MLP. Prudent Industry Practices is not intended to be limited to the optimum practice, method or act, to the exclusion of all others, but rather is a spectrum of possible practices, methods and acts which could have been expected to accomplish the
desired result at a commercially reasonable cost consistent with reliability, safety, timeliness, and compliance in all material respects with all applicable Laws and Environmental Laws. Prudent Industry Practices is intended to mean at least the
same standard as the Parties would, in the prudent management of their own properties, use from time to time. 
  
 (e) Enterprise shall indemnify and hold harmless DEFS and its affiliates from any and all Damages incurred by any such person in connection with the
provision of Transition Services so long as such services are performed in accordance with the Service Standard. 
  
 (f) For purposes of this Section 4.7, Transition Services shall not include services provided under the Services Agreements. 
  

 30 

 Section 4.8 Tax Matters. 
  
 (a) Enterprise shall cause TEPPCO GP to provide a copy of the TEPPCO MLP 2005 federal income Tax Returns to DEFS for its
review and comment on or before the tenth Business Day prior to the due date (including extensions) for such Tax Returns and use reasonable efforts to consult with DEFS with respect to the preparation of the schedules K-l relating to such Tax
Returns. 
  
 (b) For federal income tax purposes, Enterprise and
DEFS agree to treat the sale of the Membership Interest pursuant to this Agreement as a sale of the general partner interest in TEPPCO MLP by DEFS to Enterprise. 
  
 Section 4.9 TEPPCO MLP and TEPPCO GP Audit. DEFS agrees to use reasonable commercial efforts to cause KPMG LLP to
support completion as promptly as practicable after the Closing of the audit of the consolidated financial statements of TEPPCO MLP for the year ended December 31, 2004 and the audit of the consolidated financial statements of TEPPCO GP for the year
ended December 31, 2004. 
  
 Section 4.10 Completion of 2004
Annual Report. From and after the Closing, DEFS will take, and will cause its affiliates to take, all reasonable action to cause the executive officers and directors of TEPPCO GP (other than the independent directors) as of the Execution Date to
remain executive officers and directors of TEPPCO GP, respectively, and be available and prepared to sign the Draft 10-K in the form approved by the audit committee of the board of directors of TEPPCO GP and management of TEPPCO GP for filing with
the SEC. In the event that any such executive officers or directors are unable or unwilling to serve in such capacities, DEFS will cause to be available for election a sufficient number of representatives of DEFS to serve as executive officers and
directors of TEPPCO GP such that the Draft 10-K in the form approved for filing with the SEC (including all required certifications and reports included therein or filed or furnished therewith) is signed by the requisite executive officers and
directors of TEPPCO GP and timely filed with the SEC. 
  
 Section
4.11 Board of Directors. From and after the Closing and until such time that the TEPPCO MLP Annual Report on Form 10-K for the year ended December 31, 2004 has been filed with the SEC, DEFS will take, and will cause its affiliates to take,
all reasonable action to cause the directors of TEPPCO GP that are affiliated with DEFS (a) to give Enterprise not less than 72 hours prior written notice of any meeting of the board of directors of TEPPCO GP or any committee thereof or any action
to be taken by written consent in lieu of any such meeting and (b) not to take any action, or approve or adopt any resolutions, at any meeting or by written consent in lieu thereof without the prior written consent of Enterprise. Notwithstanding the
foregoing, nothing in this Section 4.11 shall require any member of the board of directors of TEPPCO GP to violate his or her fiduciary duties in order to comply with this Section 4.11. 
  
 Section 4.12 Benefit Plans. 
  
 (a) As soon as administratively practicable following the Closing,
Enterprise shall take such actions as are necessary to cause a section 401(k) plan maintained by Enterprise or one of its affiliates to accept direct rollovers of Affected Employees’ eligible rollover distributions in cash (including plan loan
notes in accordance with the Enterprise 401(k) plan loan rules) from the Duke Energy Field Services 401(k) and Retirement Plan as elected by the Affected Employees. 
  

 31 

 (b) Effective no later than the close of the Benefits Transition Services Period, Enterprise or one of
its affiliates shall offer the Affected Employees who are then employed by Enterprise or one of its affiliates (including but not limited to TEPPCO GP) and their eligible spouses and dependents coverage under a Group Health Plan maintained by it
(the “Enterprise Group Health Plan”) and shall cause each Enterprise Group Health Plan to (i) waive any exclusions, restrictions or limitations with respect to pre-existing conditions or waiting periods thereunder to the extent that
the same were waived or satisfied by the Affected Employees on the end of the Benefits Transition Services Period under an analogous TEPPCO Group Health Plan and (ii) credit any health expenses paid by an Affected Employee or his covered dependents
during the year in which the Benefits Transition Services Period ends for purposes of satisfying any applicable deductible, coinsurance and maximum out-of-pocket provisions under such Enterprise Group Health Plan. 
  
 (c) Enterprise shall take such actions as are necessary to ensure that an
Affected Employee’s vacation entitlement accrued under a TEPPCO Plan as of the Closing shall be recognized following the Closing under the vacation policy of Enterprise and its affiliates. 
  
 (d) Enterprise shall take such actions as are necessary to ensure that the
Affected Employees are provided credit for their service prior to the Closing for all purposes (including for purposes of eligibility to participate, vesting and accrual of benefits) under all employee benefit plans and vacation policies maintained
by Enterprise and its affiliates in which the Affected Employees participate on or after the Closing to the same extent such Affected Employees’ service prior to the Closing was recognized under the corresponding plans and vacation policies in
which such Affected Employees participated immediately prior to the Closing Date; provided, however, that in the case of pension plans (as defined in Section 3(2) of ERISA) such credit shall be given only for purposes of vesting and
initial eligibility to participate. 
  
 (e) If within the two-year
period commencing on the Closing Date an Affected Employee incurs an “involuntary termination of employment” within the meaning of the Texas Eastern Products Pipeline Company, LLC Transition Severance Plan, as amended and restated
effective February 1, 2005 (the “TEPPCO Severance Plan”), Enterprise shall, within ten days following the termination of employment, pay or cause a subsidiary of Enterprise to pay the Affected Employee in a single sum in cash the
benefit he would have been eligible to receive at such time under the terms of the TEPPCO Severance Plan as in effect immediately prior to the Closing. DEFS shall not terminate an Affected Employee without Enterprise’s prior written consent.

  
 (f) With the exception of the Duke Energy Field Services
401(k) and Retirement Plan, during the Benefits Transition Services Period, DEFS shall permit the Affected Employees to continue to participate in the DEFS Plans in which such Affected Employees participated immediately prior to the Closing (or any
successor thereto) on the same basis as provided before the Closing. DEFS shall also cause all insurance contracts issued with respect to such plans, including any stop loss issued to the Employer, to be amended to provide for the coverage of (or
with respect to) the Affected Employees during the Benefits Transition Services Period. 
  

 32 

 (g) On or prior to the Closing Date, DEFS shall cause any Affected Employee who is receiving long-term
disability benefits under a long-term disability plan maintained by DEFS to be transferred to the employ of DEFS. 
  
 (h) Effective no later than the close of the Benefits Transition Services Period, Enterprise shall offer, or shall cause one of its affiliates to offer,
employment to all Affected Employees who are then employed by DEFS, other than any such employees described in paragraph (g) of this Section. 
  
 (i) DEFS shall permit any retired TEPPCO GP employee covered by the TEPPCO GP retiree health plan on the Closing to continue such coverage during the
Benefits Transition Services Period on the same basis as immediately prior to the Closing. 
  
 Section 4.13 GPL Insurance. For a period of six years after the Closing, DEFS shall cause to be maintained, at its expense, GPL (General Partners Liability) insurance for individuals who are or were before the
Closing covered under the existing TEPPCO MLP GPL insurance policy on terms substantially no less advantageous. 
  
 Section 4.14 Surety Bonds. DEFS has advised Enterprise that DEFS or its affiliates have caused certain sureties (the “Sureties”)
to issue surety bonds (the “Bonds”) pursuant to which DEFS or its affiliates are obligated to reimburse the Sureties (the “Reimbursement Obligations”) for any payments made by the Sureties under the Bonds and
for certain other obligations under or in connection with the Bonds (with the Reimbursement Obligations, the “Obligations”). The Bonds are set forth on Section 4.14 of the TEPPCO Disclosure Letter. Enterprise agrees to use
commercially reasonable efforts to enter into agreements with the Sureties to assume as soon as practical the Obligations and to cause the Sureties to release DEFS or its affiliates from the Obligations. To the extent that Enterprise is unable to
cause the Sureties to effect such assumption and release on terms acceptable to Enterprise, DEFS agrees to maintain and to cause its affiliates to maintain the Bonds in effect, and Enterprise agrees to indemnify and hold harmless DEFS and its
affiliates for any Damages incurred by DEFS and its affiliates as a result of being required to perform any obligations under the Bonds. The indemnity obligations set forth in this Section 4.14 shall not be subject to any of the limitations on
amount set forth in Article V. 
  
 Section 4.15 Other
Insurance. DEFS or its affiliates will obtain insurance coverage promptly following Closing to provide a six month extended period for claims reporting for all insurance policies covering the TEPPCO Partnership Group Entities and their
operations which policies were written on a “claims made” basis. After the expiration of such six-month period, at the request of Enterprise, DEFS or its affiliates will continue to maintain extended coverage for each such policy as is
specified by Enterprise. The costs for such coverage shall be reimbursed by Enterprise. DEFS or its affiliates will administer all claims made on such insurance coverage, as well as all claims made on all of the insurance policies listed in Section
3.3(s) of the TEPPCO Disclosure Letter, other than the TEPPCO MLP GPL insurance policy and the environmental liability policies listed in Section 3.3(s) of the TEPPCO Disclosure Letter. 
  

 33 

 ARTICLE V 
 REMEDIES FOR DEFAULT 
  
 Section 5.1 Indemnity Regarding Section 3.1 and Section 3.3 Representations and Covenants. Subject to the provisions of this Article V, DEFS shall indemnify and hold harmless Enterprise and its partners and their respective officers,
directors and employees (the “Enterprise Indemnified Parties”) from any and all Damages incurred by any such person in connection with the breach of (a) a representation or warranty set forth in Section 3.1 or Section
3.3 or (b) a covenant or agreement made by DEFS hereunder; provided that, for purposes of calculating the amount of any Damages pursuant to Section 5.1(a), such representations and warranties shall be read and interpreted as if any
Materiality Requirement contained therein were not contained therein. Notwithstanding the forgoing, DEFS will not have any obligation to indemnify any Enterprise Indemnified Party for Damages arising pursuant to Section 5.1(a) for an
individual claim or series of related claims arising out of the same event or occurrence that do not exceed $250,000 (the “Individual Threshold”) and then only for such claim or series of related claims arising out of the same event
or occurrence exceeding the Individual Threshold that, in the aggregate, exceed $10,000,000, in which event DEFS shall be liable for all Damages only in excess of $10,000,000 (provided, however, that the Individual Threshold and $10,000,000
limitation shall not apply to Damages arising pursuant to Section 5.1(a) resulting from a breach of the representations and warranties set forth in Section 3.1); and the liability of DEFS under Section 5.1(a) shall not exceed
$200,000,000 in the aggregate. For the avoidance of doubt, DEFS shall have no obligation to indemnify and hold harmless any member of the TEPPCO Partnership Group Entities or the TEPPCO MLP Partially Owned Entities pursuant to Section 5.1;
provided, however, that should the Enterprise Indemnified Parties incur or suffer Damages from the breach of a representation or warranty set forth in Section 3.1 or Section 3.3 or a covenant or agreement made by DEFS hereunder, DEFS
shall be obligated to indemnify and hold harmless the Enterprise Indemnified Parties to the extent of such Damages. To the extent that a claim for indemnification under this Section 5.1 includes a claim for remediation costs to address a
Release of Hazardous Substance at or from any of the TEPPCO Pipeline Assets, such remediation costs shall be limited to remediations that are performed in a manner consistent with the current use of the property and consistent with then prevailing
laws and contracts and leases existing as of the Closing Date. 
  
 Section 5.2 Indemnity Regarding Section 3.2 Representations and Covenants. Subject to the provisions of this Article V, Enterprise shall indemnify and hold harmless DEFS and its members and their respective officers, directors and
employees (collectively, the “DEFS Indemnified Parties”) from any and all Damages incurred by any such person in connection with the breach of (a) a representation or warranty set forth in Section 3.2 or (b) a covenant or
agreement made by such party hereunder; provided that, for purposes of calculating the amount of any Damages pursuant to Section 5.2(a), such representations and warranties shall be read and interpreted as if any Materiality
Requirement contained therein were not contained therein. Notwithstanding the forgoing, the liability of Enterprise under Section 5.2(a) shall not exceed $200,000,000 in the aggregate. 
  
 Section 5.3 Survival of Representations. The representations,
warranties, covenants and agreements contained in this Agreement or made in any certificate or document delivered pursuant hereto shall survive the Closing regardless of any investigation made by the parties 

  

 34 

 
hereto, any person controlling such party or any of their Representatives and regardless of any knowledge acquired or capable of being acquired whether
before or after the Closing. The representations and warranties of the parties contained in Section 3.1, Section 3.2 and Section 3.3 shall survive the Closing and any investigation by the parties with respect thereto until the
expiration of 12 months after the Closing Date; provided, however, that (i) the representations and warranties of DEFS set forth in Section 3.1(d) shall survive indefinitely, and (ii) the representations and warranties of DEFS set
forth in Section 3.3(l) shall survive until the expiration of 36 months after the Closing Date and (iii) the representations and warranties in Section 3.3(q), and Section 3.3(t) shall survive for the applicable statute of
limitations, including all periods of extension thereof, whether automatic or permissive. Notwithstanding the foregoing, in the event that TEPPCO MLP is merged with or into Enterprise or an affiliate of Enterprise (it being acknowledged and agreed
by the parties that there is no such obligation to effect such merger), the representations and warranties of the parties contained in Section 3.3 shall terminate immediately upon the effective time of the merger and any and all obligations
of DEFS to indemnify and hold harmless the Enterprise Indemnified Parties pursuant to Section 5.1 with respect to a breach of the representations and warranties contained in Section 3.3 shall also terminate as of such effective time,
including with respect to any claims for Damages that have been discovered or asserted but not satisfied prior to such effective time. Except to the extent expressly provided otherwise in the preceding sentence, the expiration of any survival period
under this Agreement will not affect the liability of any party under Section 5.1 or Section 5.2, as the case may be, for any Damages as to which a bona fide claim relating thereto is asserted prior to the termination of such survival
period. 
  
 Section 5.4 Calculation of Damages. 

 
 (a) Any calculation of Damages for purposes of this Article V shall be
net of any insurance proceeds or other payments received by or on behalf of such indemnified party with respect thereto after taking into account retrospective premium adjustments, experience-based premium adjustments and indemnification
obligations. If an indemnified party hereunder shall have received an indemnity payment in respect of Damages and shall subsequently receive, directly or indirectly, insurance or other proceeds in respect of the claims or losses giving rise to such
Damages, then such indemnified party and indemnifying party shall reimburse each other as appropriate to reflect the amount of Damages the indemnified party is entitled to receive in accordance with the preceding sentence. 
  
 (b) For the avoidance of doubt, any calculation of Damages for purposes of
this Article V shall be net of amounts reflected as reserves on the TEPPCO MLP Balance Sheet. 
  
 Section 5.5 Enforcement of this Agreement. The parties hereto acknowledge and agree that an award of money damages would be inadequate for any breach of this Agreement by any party and any such breach would
cause the non-breaching parties irreparable harm. Accordingly, the parties hereto agree that, in the event of any breach or threatened breach of this Agreement by one of the parties, the parties will also be entitled, without the requirement of
posting a bond or other security, to equitable relief, including injunctive relief and specific performance, provided such party is not in material default hereunder. 
  

 35 

 Section 5.6 Exclusive Remedy. Except as set forth in Section 5.5 and Section 5.8,
the parties agree that the indemnification provisions in this Article V shall be the exclusive remedy of the parties with respect to breaches of representations and warranties and failures to perform covenants or agreements hereunder. 
  
 Section 5.7 Limitation on Damages. NOTWITHSTANDING ANYTHING TO THE
CONTRARY IN THIS AGREEMENT, IN NO EVENT SHALL ANY PARTY HERETO BE LIABLE TO ANY OTHER PARTY HERETO, OR TO SUCH OTHER PARTY’S INDEMNITEES, UNDER THIS AGREEMENT FOR ANY EXEMPLARY OR PUNITIVE DAMAGES OR DAMAGES ARISING FROM LOST BUSINESS
OPPORTUNITIES, LOSS OF BUSINESS REPUTATION, OR THE COST OF BORROWING; PROVIDED THAT, IF ANY INDEMNIFIED PARTY HEREUNDER IS HELD LIABLE TO A THIRD PARTY FOR ANY SUCH DAMAGES AND THE INDEMNIFYING PARTY HEREUNDER IS OBLIGATED TO INDEMNIFY SUCH
INDEMNIFIED PARTY FOR THE MATTER THAT GAVE RISE TO SUCH DAMAGES, THE INDEMNIFYING PARTY SHALL BE LIABLE FOR, AND OBLIGATED TO REIMBURSE SUCH INDEMNIFIED PARTY FOR SUCH DAMAGES. THE PARTIES FURTHER AGREE THAT IN CLAIMS ARISING UNDER ARTICLE V HEREOF,
CHANGES IN THE TRADING PRICE OF AN LP UNIT IN THE PUBLIC MARKETS SHALL NOT ESTABLISH OR NEGATE SUCH A DAMAGE CLAIM. 
  
 Section 5.8 No Waiver Relating to Claims for Fraud/Willful Misconduct. The liability of any party under this Article V shall be in addition to, and
not exclusive of, any other liability that such party may have at law or in equity based on such party’s (a) fraudulent acts or omissions or (b) willful misconduct. None of the provisions set forth in this Agreement shall be deemed to be a
waiver by or release of any party of any right or remedy which such party may have at law or equity based on any other party’s fraudulent acts or omissions or willful misconduct nor shall any such provisions limit, or be deemed to limit, (i)
the amounts of recovery sought or awarded in any such claim for fraud or willful misconduct, (ii) the time period during which a claim for fraud or willful misconduct may be brought, or (iii) the recourse which any such party may seek against
another party with respect to a claim for fraud or willful misconduct. 
  
 Section 5.9 Express Negligence Clause. ALL RELEASES, DISCLAIMERS, LIMITATIONS ON LIABILITY AND INDEMNITIES IN THIS AGREEMENT, INCLUDING THOSE IN THIS ARTICLE V, SHALL APPLY EVEN IN THE EVENT OF THE SOLE, JOINT OR CONCURRENT
NEGLIGENCE, STRICT LIABILITY OR OTHER FAULT OF THE PARTY WHOSE LIABILITY IS RELEASED, DISCLAIMED, LIMITED OR INDEMNIFIED. 
  
 ARTICLE VI 
 MISCELLANEOUS

  
 Section 6.1 Notices. Any notice, request,
instruction, correspondence or other document to be given hereunder by any party to another party (each, a “Notice”) shall be in writing and delivered in person or by courier service requiring acknowledgment of receipt of delivery
or mailed by U.S. registered or certified mail, postage prepaid and return receipt 

  

 36 

 
requested, or by telecopier, as follows; provided, that copies to be delivered below shall not be required for effective notice and shall not
constitute effective notice: 
  
 If to DEFS,
addressed to: 
  
 Duke Energy Field Services,
LLC 
 370 17th Street, Suite 2500 
 Denver, Colorado 80202 
 Attention: Chief Executive Officer 
 Telecopy: (303)605-1605 
  
 with a copy to: 
  
 370 17th Street, Suite 2500 
 Denver, Colorado 80202 
 Attention: General Counsel 
 Telecopy: (303)605-1605 
  
 If to Enterprise, addressed to: 
  
 Enterprise Holdings GP L.P. 
 c/o EPE Holdings, LLC 
 2727 North Loop West 
 Houston, Texas 77008 
 Attention: President 
 Telecopy: (713) 880-6570 
  
 with a copy to: 
  
 Enterprise Holdings GP L.P. 
 c/o EPE Holdings, LLC 
 2727 North Loop West 
 Houston, Texas 77008 
 Attention: Chief Legal Officer 
 Telecopy: (713) 880-6570 
  
 Notice given by personal delivery, courier service or mail shall be effective upon actual receipt. Notice given by telecopier shall be confirmed by
appropriate answer back and shall be effective upon actual receipt if received during the recipient’s normal business hours, or at the beginning of the recipient’s next Business Day after receipt if not received during the recipient’s
normal business hours. All Notices by telecopier shall be confirmed promptly after transmission in writing by certified mail or personal delivery. Any party may change any address to which Notice is to be given to it by giving Notice as provided
above of such change of address. 
  
 Section 6.2 Governing Law;
Jurisdiction; Waiver of Jury Trial. To the maximum extent permitted by applicable Law, the provisions of this agreement shall be governed by and 

  

 37 

 
construed and enforced in accordance with the laws of the State of Texas, without regard to principles of conflicts of law. Each party thereto hereby
irrevocably and unconditionally (a) consents and submits to the exclusive jurisdiction of any federal or state court located in Houston, Texas (the “Texas Courts”) for any actions, suits or proceedings arising out of or relating to
this Agreement or the transactions contemplated by this Agreement (and agrees not to commence any litigation relating thereto except in such courts), (b) waives any objection to the laying of venue of any such litigation in the Texas Courts and
agrees not to plead or claim in any Texas Court that such litigation brought therein has been brought in any inconvenient forum and (c) acknowledges and agrees that any controversy which may arise under this Agreement is likely to involve
complicated and difficult issues, and therefore each such party hereby irrevocably and unconditionally waives any right such party may have to a trial by jury in respect of any litigation directly or indirectly arising or relating to this Agreement
or the transactions contemplated by this Agreement. 
  
 Section
6.3 Entire Agreement; Amendments and Waivers. This Agreement constitutes the entire agreement between and among the parties hereto pertaining to the subject matter hereof and supersedes all prior agreements, understandings, negotiations and
discussions, whether oral or written, of the parties, and there are no warranties, representations or other agreements between or among the parties in connection with the subject matter hereof except as set forth specifically herein. No supplement,
modification or waiver of this Agreement shall be binding unless executed in writing by the party to be bound thereby. The failure of a party to exercise any right or remedy shall not be deemed or constitute a waiver of such right or remedy in the
future. No waiver of any of the provisions of this Agreement shall be deemed or shall constitute a waiver of any other provision hereof (regardless of whether similar), nor shall any such waiver constitute a continuing waiver unless otherwise
expressly provided. 
  
 Section 6.4 Binding Effect and
Assignment. This Agreement shall be binding upon and inure to the benefit of the parties hereto and their respective permitted successors and assigns. Nothing in this Agreement, express or implied, is intended to confer upon any person other
than the parties hereto and their respective permitted successors and assigns, any rights, benefits or obligations hereunder. No party hereto may assign, transfer, dispose of or otherwise alienate this Agreement or any of its rights, interests or
obligations under this Agreement (whether by operation of law or otherwise). Any attempted assignment, transfer, disposition or alienation in violation of this Agreement shall be null, void and ineffective. 
  
 Section 6.5 Severability. If any term or other provision of this
Agreement is invalid, illegal, or incapable of being enforced by any rule of applicable Law, or public policy, all other conditions and provisions of this Agreement shall nevertheless remain in full force and effect so long as the economic or legal
substance of the transactions contemplated herein are not affected in any manner materially adverse to any party hereto. Upon such determination that any term or other provision is invalid, illegal, or incapable of being enforced, the parties hereto
shall negotiate in good faith to modify this Agreement so as to effect the original intent of the parties hereto as closely as possible in a mutually acceptable manner in order that the transactions contemplated herein are consummated as originally
contemplated to the fullest extent possible. 
  
 Section 6.6
Execution. This Agreement may be executed in multiple counterparts each of which shall be deemed an original and all of which shall constitute one instrument. 
  

 38 

 Section 6.7 Disclosure Letters. Each disclosure identified in the TEPPCO Disclosure Letter (other
than the Draft 10-K) or elsewhere in this Agreement constitutes a disclosure by the disclosing party with respect to the specific section of this Agreement identified in the TEPPCO Disclosure Letter as applicable, and with respect to any other
section of this Agreement reasonably related thereto. 
  
 [The
remainder of this page is blank] 
  

 39 

 IN WITNESS WHEREOF, the parties hereto have entered into this Agreement as of the date first written
above. 
  

			
	DUKE ENERGY FIELD SERVICES, LLC
		
	 By:
	 	 /s/    Brent Backes

	 Name:
	 	  

	 Title:
	 	VP & General Counsel
	
	ENTERPRISE GP HOLDINGS L.P.
		
	 By:
	 	 EPE Holdings, LLC, its general partner

		
	 By:
	 	 Dan Duncan LLC, its sole member

		
	 By:
	 	 /s/    Richard H. Bachman

	 Name:
	 	  

	 Title:
	 	  

 EXHIBIT A 
  

FORM OF PROMISSORY NOTE 
  

 Exhibit A 

 EXHIBIT B 
  

FORM OF SECURITY AGREEMENT 
  

 Exhibit B

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