Document:

exv10wb

 

Exhibit 10.B

PURCHASE AND SALE AGREEMENT

among

EL PASO GREAT LAKES COMPANY, L.L.C.,

as Seller,

and

TC GL INTERMEDIATE LIMITED PARTNERSHIP

and

TRANSCANADA PIPELINE USA LTD.,

as Buyers,

dated as of December 22, 2006

 

 

TABLE OF CONTENTS

	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	Page
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE 1 DEFINITIONS	 	 	1	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	1.1	 	 	Certain Defined Terms
	 	 	1	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	1.2	 	 	Construction
	 	 	9	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE 2 TERMS OF THE TRANSACTION	 	 	9	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	2.1	 	 	Agreement to Sell and to Purchase the Purchased Interests
	 	 	9	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	2.2	 	 	Purchase Price and Payment
	 	 	10	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	2.3	 	 	[Intentionally omitted.]
	 	 	10	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	2.4	 	 	Calculation of Closing Consideration
	 	 	10	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	2.5	 	 	Calculation and Payment of Adjustment Amounts
	 	 	10	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	2.6	 	 	Acknowledgement of Obligations
	 	 	13	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	2.7	 	 	Purchase Price Allocation
	 	 	13	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE 3 CLOSING	 	 	14	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	3.1	 	 	Closing
	 	 	14	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	3.2	 	 	Deliveries by Seller
	 	 	14	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	3.3	 	 	Deliveries by Buyers
	 	 	15	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE 4 REPRESENTATIONS AND WARRANTIES OF SELLER	 	 	16	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.1	 	 	Corporate Organization
	 	 	16	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.2	 	 	Acquired Companies
	 	 	16	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.3	 	 	Charter and Bylaws
	 	 	17	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.4	 	 	Authority Relative to this Agreement
	 	 	17	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.5	 	 	No Conflict
	 	 	18	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.6	 	 	Consents, Approvals, and Licenses
	 	 	18	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.7	 	 	Financial Statements and Reports
	 	 	18	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.8	 	 	Absence of Certain Changes
	 	 	19	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.9	 	 	Undisclosed Liabilities
	 	 	19	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.10	 	 	Tax Matters
	 	 	19	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.11	 	 	Compliance With Laws
	 	 	20	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.12	 	 	Legal Proceedings
	 	 	21	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.13	 	 	Acquired Company Agreements
	 	 	21	 

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	 	 	 	 	 	 	 	 	Page
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.14	 	 	Employee Plans and Labor Matters
	 	 	23	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.15	 	 	Environmental Matters; Pipeline Matters
	 	 	24	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.16	 	 	Insurance
	 	 	24	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.17	 	 	Title to Assets
	 	 	25	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.18	 	 	Intellectual Property Rights
	 	 	25	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.19	 	 	Permits
	 	 	25	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.20	 	 	Regulatory Matters
	 	 	25	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.21	 	 	[Intentionally Omitted]
	 	 	25	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.22	 	 	Brokerage Fees
	 	 	26	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.23	 	 	Transactions with Directors, Officers, Employees and Affiliates
	 	 	26	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.24	 	 	Long-Term Debt
	 	 	26	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	4.25	 	 	Limitations
	 	 	26	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE 5 REPRESENTATIONS AND WARRANTIES OF BUYERS	 	 	26	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	5.1	 	 	Organization
	 	 	26	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	5.2	 	 	Authority Relative to This Agreement
	 	 	26	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	5.3	 	 	No Conflict
	 	 	27	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	5.4	 	 	Consents, Approvals, and Licenses
	 	 	27	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	5.5	 	 	Investment Intent; Investment Experience; Restricted Securities
	 	 	27	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	5.6	 	 	Legal Proceedings
	 	 	28	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	5.7	 	 	Brokerage Fees
	 	 	28	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	5.8	 	 	Available Funds
	 	 	28	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	5.9	 	 	Ownership by Corp Buyer
	 	 	28	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	5.10	 	 	Independent Investigation
	 	 	29	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE 6 CONDUCT OF ACQUIRED COMPANIES PENDING CLOSING	 	 	29	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	6.1	 	 	Conduct and Preservation of the Acquired Companies
	 	 	29	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	6.2	 	 	Restrictions on Certain Actions
	 	 	29	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE 7 ADDITIONAL AGREEMENTS	 	 	31	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	7.1	 	 	Access to Information and Confidentiality
	 	 	31	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	7.2	 	 	Regulatory and Other Authorizations and Consents
	 	 	32	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	7.3	 	 	Employees and Employee Plans
	 	 	35	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	7.4	 	 	Public Announcements
	 	 	37	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	7.5	 	 	Amendment of Schedules
	 	 	37	 

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	 	 	 	 	 	 	 	 	Page
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	7.6	 	 	Fees and Expenses
	 	 	37	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	7.7	 	 	Transfer Taxes
	 	 	37	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	7.8	 	 	Excluded Assets
	 	 	37	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	7.9	 	 	[Intentionally Omitted]
	 	 	38	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	7.10	 	 	Use of El Paso Marks
	 	 	38	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	7.11	 	 	Insurance
	 	 	38	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	7.12	 	 	Guaranties
	 	 	39	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	7.13	 	 	Limitations
	 	 	39	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE 8 CONDITIONS TO OBLIGATIONS OF SELLER	 	 	39	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	8.1	 	 	Representations and Warranties True
	 	 	40	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	8.2	 	 	Covenants and Agreements Performed
	 	 	40	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	8.3	 	 	Legal Proceedings
	 	 	40	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	8.4	 	 	ANR Pipeline Closing
	 	 	40
	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE 9 CONDITIONS TO OBLIGATIONS OF BUYERS	 	 	40	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	9.1	 	 	Representations and Warranties True
	 	 	40	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	9.2	 	 	Covenants and Agreements Performed
	 	 	41	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	9.3	 	 	Legal Proceedings
	 	 	41	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	9.4	 	 	ANR Pipeline Closing
	 	 	41	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE 10 TERMINATION, AMENDMENT, AND WAIVER	 	 	41	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	10.1	 	 	Termination
	 	 	41	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	10.2	 	 	Effect of Termination
	 	 	42	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	10.3	 	 	Amendment
	 	 	42	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	10.4	 	 	Waiver
	 	 	42	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE 11 TAX MATTERS	 	 	42	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	11.1	 	 	Preparation of Tax Returns and Payment of Taxes
	 	 	42	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	11.2	 	 	Tax Sharing Agreement
	 	 	44	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	11.3	 	 	Seller Tax Indemnity
	 	 	44	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	11.4	 	 	Refunds
	 	 	44	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	11.5	 	 	Assistance
	 	 	45	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	11.6	 	 	Claims
	 	 	45	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	11.7	 	 	Closing Tax Certificate
	 	 	46	 

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	 	 	 	 	 	 	 	 	Page
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE 12 SURVIVAL AND INDEMNIFICATION	 	 	46	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	12.1	 	 	Indemnification
	 	 	46	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	12.2	 	 	Defense of Claims
	 	 	48	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE 13 OTHER PROVISIONS 	 	 	51	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	13.1	 	 	Notices
	 	 	51	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	13.2	 	 	Entire Agreement
	 	 	52	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	13.3	 	 	Binding Effect; Assignment; No Third Party Benefit
	 	 	52	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	13.4	 	 	Severability
	 	 	52	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	13.5	 	 	Governing Law
	 	 	52	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	13.6	 	 	Further Assurances
	 	 	52	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	13.7	 	 	Counterparts
	 	 	52	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	13.8	 	 	Disclosure
	 	 	52	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	13.9	 	 	Consent to Jurisdiction
	 	 	53	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	 	13.10	 	 	Specific Performance
	 	 	53	 

-iv-

 

PURCHASE AND SALE AGREEMENT

     THIS PURCHASE AND SALE AGREEMENT (this “Agreement”), dated as of December 22, 2006, is
among (i) El Paso Great Lakes Company, L.L.C., a Delaware limited liability company
(“Seller”), (ii) TC GL Intermediate Limited Partnership, a Delaware limited partnership
(“LP Buyer”), and (iii) TransCanada PipeLine USA Ltd., a Nevada corporation (“Corp
Buyer”; LP Buyer and Corp Buyer are each referred to herein individually as a “Buyer”
and collectively as the “Buyers”). Seller and Buyers are referred to herein sometimes
individually as a “Party” and collectively as the “Parties.”

Recitals:

     A. Seller directly owns beneficially and of record (i) 50% of the outstanding capital stock
(the “GLGTCO Shares”) of Great Lakes Gas Transmission Company, a Delaware corporation
(“GLGTCO”), and (ii) a 46.45% general partnership interest (the “GLGTLP GP
Interest” and, together with the GLGTCO Shares, the “Purchased Interests”) in Great
Lakes Gas Transmission Limited Partnership, a Delaware limited partnership (“GLGTLP”).

     B. Seller desires to sell to LP Buyer, and LP Buyer desires to purchase from Seller, the
GLGTLP GP Interest, upon the terms and subject to the conditions in this Agreement.

     C. Seller desires to sell to Corp Buyer, and Corp Buyer desires to purchase from Seller, the
GLGTCO Shares, upon the terms and subject to the conditions in this Agreement.

     NOW, THEREFORE, Seller and Buyers agree as follows:

Article 1

DEFINITIONS

     1.1 Certain Defined Terms. As used in this Agreement, each of the following terms
has the meaning given to it below:

     “Acquired Companies” means GLGTCO, GLGTLP and the wholly owned subsidiaries of GLGTCO and
GLGTLP listed in Schedule 1.1(a).

     “Acquired Company” means any of the Acquired Companies.

     “Acquired Company Insurance Policies” means those material policies of insurance which the
Acquired Companies maintain with respect to their assets and operations, all of which are listed on
Schedule 4.16(i).

     “Acquired Company Plans” is defined in Section 4.14(a).

     “Acquired Company Sponsored Plans” is defined in Section 4.14(a).

     “Adjustment Statement” is defined in Section 2.5(b).

Purchase and Sale Agreement — Great Lakes Businesses

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     “Affiliate” means, with respect to any Person, any other Person that, directly or indirectly,
through one or more intermediaries, controls, is controlled by, or is under common control with,
such Person. For the purposes of this definition, “control” means, when used with respect to any
Person, the possession, directly or indirectly, of the power to direct or cause the direction of
the management and policies of such Person, whether through the ownership of voting securities, by
contract, or otherwise, and the terms “controlling” and “controlled” have correlative meanings.

     “Agreement” is defined in the Preamble.

     “Applicable Environmental Laws” means any and all Applicable Laws (in effect as of the date of
this Agreement) pertaining to protection of human health and the environment in any and all
jurisdictions in which any Acquired Company conducts or has conducted operations.

     “Applicable Law” means any statute, law, rule, or regulation, or any judgment, order,
ordinance, or other documentary articulation of law, writ, injunction, or decree of any
Governmental Entity to which a specified Person or its property is subject.

     “Assumed Obligations” is defined in Section 2.6.

     “Balance Sheet Date” means September 30, 2006.

     “Buyer” is defined in the Preamble.

     “Buyer Guarantors” means TransCanada Corporation and TransCanada PipeLine USA Ltd.

     “Buyer Indemnitees” means, collectively, each Buyer and its Affiliates (including each of the
Acquired Companies) and its and their officers, directors, employees, agents, and representatives.

     “Buyer Protected Information” is defined in Section 7.2(c)(i).

     “Buyers Guaranty” means a guaranty agreement in the form of Exhibit 7.12(a).

     “Cash Balance Plan” is defined in Section 7.3(b).

     “Closing” means the closing of the transactions contemplated hereby.

     “Closing Date” means the date on which the Closing occurs.

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

     “commercially reasonable efforts” means efforts (i) in accordance with reasonable commercial
practice and the terms, limitations, and restrictions of all applicable contracts and other
agreements and (ii) without the incurrence of unreasonable expense.

     “Confidentiality Agreement” means that certain confidentiality letter agreement, dated
September 25, 2006, between TransCanada PipeLines Limited and El Paso.

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     “Corp Adjustment Amount” is defined in Section 2.5(a).

     “Corp Base Purchase Price” is defined in Section 2.2(b).

     “Corp Buyer” is defined in the Preamble.

     “Corp Estimated Adjustment Amount” means Seller’s good faith and reasonable estimate of the
Corp Adjustment Amount, as of the date on which Seller delivers to Buyers the written statement
contemplated by Section 2.4.

     “Corp Interest Adjustment” means interest (calculated based on the actual number of days
elapsed, assuming a 360-day year) on the Corp Base Purchase Price as adjusted by the Corp Estimated
Adjustment Amount at the Prime Rate plus 1.0% from (and including) the Effective Date to (but
excluding) the Closing Date.

     “Data Site” means the online presentation of materials prepared by Seller, as the same exists
as of the close of business, Houston, Texas time, of the day immediately preceding the date of this
Agreement, to assist Buyers in their investigation of the Acquired Companies.

     “Debt Documents” means the following: (i) Note Agreement, dated as of March 29, 2000, among
GLGTLP and certain purchasers relating to $100 million principal amount of 8.08% Senior Notes due
January 29, 2030; (ii) Note Agreement, dated as of March 25, 1998, among GLGTLP and certain
purchasers relating to $90 million principal amount 6.73% Series A Senior Notes due March 25, 2018
and $110 million principal amount of 6.95% Series B Senior Notes due March 25, 2028; and (iii) Note
Agreement, dated as of October 15, 1991, among GLGTLP and certain purchasers relating to $100
million 8.74% Series A Senior Notes due October 30, 2011 and $100 million 9.09% Series B Senior
Notes due October 30, 2021.

     “Deductible Amount” means an amount equal to 1.0% of the Total Purchase Price.

     “Direct Claim” means any claim by an Indemnitee on account of a Loss which does not result
from a Third Party Claim.

     “Disclosure Letter” means the letter, of even date herewith, of Seller or Buyers to which such
party’s Schedules are attached.

     “Dispute Deadline Date” is defined in Section 2.5(c).

     “Effective Date” means the close of business on the last day of the month preceding the
Closing Date.

     “Effective Date Financial Statements” is defined in Section 2.5(b).

     “Effective Date GLGTCO Financial Statements” is defined in Section 2.5(b).

     “Effective Date GLGTLP Financial Statements” is defined in Section 2.5(b).

     “El Paso” means El Paso Corporation, a Delaware corporation.

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     “El Paso Marks” means the name “El Paso” and other similar trademarks, service marks, and
trade names owned by Seller or its Affiliates (other than the Acquired Companies).

     “Employee Plan” means any stock purchase, stock option, pension, profit sharing, bonus,
deferred compensation, incentive compensation, severance or termination pay, hospitalization or
other medical or dental, life or other insurance, supplemental unemployment benefits plan or
agreement or policy or other arrangement providing employment-related compensation or benefits,
including “employee benefit plans,” as defined in Section 3(3) of ERISA.

     “Encumbrances” means liens, charges, pledges, options, rights of first refusal, reversionary
rights, mortgages, deeds of trust, security interests, claims, leases, licenses, restrictions
(whether on voting, sale, transfer, disposition, or otherwise), easements, encroachments and other
encumbrances or limitations of every type and description, whether imposed by law, agreement,
understanding, or otherwise.

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

     “Excluded Assets” is defined in Section 7.8.

     “Excluded Information” is defined in Section 7.1(a).

     “Exhibits” means the exhibits attached to this Agreement.

     “FERC” means the Federal Energy Regulatory Commission.

     “GLGTCO” is defined in the Recitals.

     “GLGTCO Financial Statements” is defined in Section 4.7.

     “GLGTCO Shares” is defined in the Recitals.

     “GLGTCO Working Capital” is defined in Section 2.5(f).

     “GLGTLP” is defined in the Recitals.

     “GLGTLP GP Interest” is defined in the Recitals.

     “GLGTLP Financial Statements” is defined in Section 4.7.

     “GLGTLP Working Capital” is defined in Section 2.5(f).

     “GL Financial Statements” is defined in Section 4.7.

     “Governmental Entity” means any court or tribunal in any jurisdiction (domestic or foreign) or
any federal, state, municipal, or local government or other governmental body, agency, authority,
department, commission, board, bureau, instrumentality, arbitrator, or arbitral body (domestic or
foreign).

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     “HSR Measures” is defined in Section 7.2(a).

     “Income Tax” means federal, state, local or foreign income or franchise Taxes or other similar
Taxes measured in whole or part by income and any interest and penalties or additions thereon.

     “Indemnifying Party” means a Party required to provide indemnification under Section
12.1.

     “Indemnitee” means a Party entitled to receive indemnification under Section 12.1.

     “IRS” means the Internal Revenue Service.

     “knowledge” means, when used with respect to Seller or the Acquired Companies, that which is
actually known by the individuals listed on Schedule 1.1(b), without due inquiry, and when
used with respect to Buyers, that which is actually known by the individuals listed on Schedule
1.1(c), without due inquiry.

     “Long Term Debt” means both the current and long-term portions of the outstanding principal
amount of indebtedness as of the date of determination under the Debt Documents, and including the
amount of unamortized debt discount under U.S. GAAP.

     “Losses” means, collectively, any and all claims, liabilities, losses, causes of action,
fines, penalties, litigation, lawsuits, administrative proceedings, administrative investigations,
costs, and expenses, including reasonable attorneys’ fees, court costs, and other costs of suit.

     “LP Adjustment Amount” is defined in Section 2.5(a).

     “LP Base Purchase Price” is defined in Section 2.2(a).

     “LP Buyer” is defined in the Preamble.

     “LP Estimated Adjustment Amount” means Seller’s good faith and reasonable estimate of the LP
Adjustment Amount, as of the date on which Seller delivers to Buyers the written statement
contemplated by Section 2.4.

     “LP Interest Adjustment” means interest (calculated based on the actual number of days
assuming a 360-day year) on the LP Base Purchase Price, as adjusted by the LP Estimated Adjustment
Amount at the Prime Rate plus 1.0% from (and including) the Effective Date to (but excluding) the
Closing Date.

     “Material Adverse Effect” means, any circumstance, change, or effect that is materially
adverse to the financial condition, properties, operations, results of operations, assets or
business of the Acquired Companies taken as a whole or that impedes or delays the ability of Seller
to perform its obligations under this Agreement or the Related Agreements or to consummate the
transactions contemplated hereby or thereby, other than (i) any adverse circumstance, change, or
effect arising from or relating to general business or economic conditions in the industries or

Purchase and Sale Agreement — Project Gemini [Great Lakes Businesses]

Page 5

 

markets in which the Acquired Companies operate, including (A) changes in national or regional
gathering and pipeline systems or (B) rules, regulations, or decisions of FERC or the courts
affecting the interstate natural gas transportation industry as a whole, (ii) any adverse
circumstance, change, or effect arising from weather conditions, including unexpected or harsh
weather conditions, (iii) seasonal reductions in revenues or earnings of the Acquired Companies in
the ordinary course of business consistent with past periods, (iv) national or international
political, diplomatic, or military conditions, including any engagement in hostilities, whether or
not pursuant to a declaration of war, or the occurrence of any military or terrorist attack not
disproportionately affecting the Acquired Companies, (v) changes in U.S. GAAP, (vi) changes in
Applicable Laws not disproportionately affecting the Acquired Companies, (vii) the taking of any
action required or permitted by Section 7.8 of this Agreement, or the failure of Seller or
the Acquired Companies to take any action for which Seller in good faith requests Buyers’ written
consent under Section 6.1 or 6.2 and Buyers fail or refuse to provide such consent,
(viii) any changes in prices for commodities, goods, or services, or the availability or costs of
hedges or other derivatives, including fluctuations in interest rates, (ix) any matter that is
expressly disclosed in the Schedules as of the date of execution of this Agreement, and (x) the
execution and delivery or announcement of this Agreement. The Parties agree that any determination
as to whether a change, effect, event, or occurrence is a Material Adverse Effect shall be made
after taking into account and considering all matters relevant to such analysis, including (y) all
amounts, if any, recognized by the Person and its Affiliates, as applicable, under insurance or
third-party indemnifications or similar agreements, and (z) all Tax Benefits with respect to such
change, effect, event, or occurrence.

     “NGA” is defined in Section 4.20.

     “NLRB” is defined in Section 4.14(d).

     “Notice” means any notice, request, demand, or other communications required or permitted to
be given or made under this Agreement by either Party.

     “Notice of Disagreement” is defined in Section 2.5(c).

     “Party” is defined in the Preamble.

     “Permits” means licenses, permits, franchises, consents, approvals, variances, exemptions, and
other authorizations of or from Governmental Entities.

     “Permitted Encumbrances” means (i) zoning, planning and building codes and ordinances; (ii)
defects, imperfections or irregularities in title (including easements, rights-of-way, covenants,
conditions, restrictions, and other matters affecting title to real property) that are not material
in character, amount or extent with respect to the asset or assets to which they relate or,
together with any other such defects, imperfections or irregularities, in the aggregate; (iii)
Encumbrances created by or referenced in any of the Scheduled Contracts; (iv) Encumbrances created
by Buyers, or their successors and assigns, (v) liens for Taxes not yet due and payable, (vi)
statutory liens (including materialmen’s, mechanic’s, repairmen’s, landlord’s and other similar
liens) arising in connection with the ordinary course of business

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securing payments not yet due and payable; (vii) Encumbrances arising under the Debt
Documents; and (viii) Encumbrances that would not materially interfere with the operations of the
Acquired Companies, as currently conducted, whether of record or not of record.

     “Person” means any individual, corporation, limited liability company, partnership, joint
venture, association, joint-stock company, trust, enterprise, unincorporated organization, or
Governmental Entity.

     “Pipeline/Storage PSA” is defined in Section 8.4.

     “Post-Effective Date Taxes” is defined in Section 11.1(d).

     “Pre-Closing Taxes” is defined in Section 11.1(c).

     “Prime Rate” means the prime interest rate reported in The Wall Street Journal on the
Effective Date.

     “Proceedings” means all proceedings, actions, claims, suits, investigations, and inquiries by
or before any mediator, arbitrator, or Governmental Entity.

     “Purchase Price” means (i) in the case of the GLGTLP GP Interest, the sum of the LP Base
Purchase Price, as adjusted by the LP Adjustment Amount and the LP Interest Adjustment, and (ii) in
the case of the GLGTCO Shares, the sum of the Corp Base Purchase Price, as adjusted by the Corp
Adjustment Amount and the Corp Interest Adjustment.

     “Purchase Price Allocation Schedule” is defined in Section 2.7.

     “Purchased Interests” is defined in the Recitals.

     “Related Agreements” means any document, agreement, certificate or instrument delivered in
connection with the transactions contemplated by this Agreement, and with respect to Buyers only,
the Buyers Guaranty, and with respect to Seller only, the Seller Guaranty.

     “Savings Plan” is defined in Section 7.3(b).

     “Scheduled Contracts” means any of the agreements or contracts listed on Schedule
4.13.

     “Schedules” means the schedules attached to the Disclosure Letter of Seller or Buyers, as the
case may be.

     “Securities Act” means the Securities Act of 1933, as amended.

     “Seller” is defined in the Preamble.

     “Seller Guarantor” means El Paso.

     “Seller Guaranty” means a guaranty agreement in the form of Exhibit 7.12(b).

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     “Seller Indemnitees” means, collectively, Seller and its Affiliates (other than the Acquired
Companies) and each of their officers, directors, employees, agents, and representatives.

     “Seller Protected Information” is defined in Section 7.2(c)(ii).

     “Straddle Period” means a Tax period or year commencing before and ending after the Closing
Date.

     “Straddle Return” means a Tax Return for a Straddle Period.

     “Tax Audit” is defined in Section 11.6(a).

     “Tax Benefit” means an amount by which the current Tax liability of a Party (or group of
corporations including the Party) is reduced (including by deduction, reduction of income by virtue
of increased Tax basis or otherwise, entitlement of refund, credit, or otherwise).

     “Tax Return” means any return or report, declaration, report, claim for refund, information
return, or statement relating to Taxes, including any related schedules, attachments, or other
supporting information, with respect to Taxes, and including any amendment thereto.

     “Taxes” means any federal, state, local or foreign income, gross receipts, license, payroll,
parking, employment, excise, severance, stamp, occupation, premium, windfall profits,
environmental, customs duties, capital stock, franchise, profits, withholding, social security (or
similar), unemployment, disability, real property, personal property, sales, use, transfer,
registration, value added, alternative or add-on minimum, estimated tax or other tax of any kind
whatsoever, including any interest, penalty or addition thereto, including such item for which a
liability arises as a transferee or successor-in-interest.

     “Taxing Authority” means any Governmental Entity responsible for the imposition or collection
of any Tax.

     “Third Party” means any Person other than (i) Seller or any of its Affiliates (including the
Acquired Companies) and (ii) Buyers and their respective Affiliates.

     “Third Party Claim” means any claim or the commencement of any claim, action, or proceeding
made or brought by a Third Party.

     “Total Purchase Price” means the sum of (i) the Purchase Price and (ii) 50% of the principal
amount of the Long Term Debt outstanding as of the Closing.

     “Transition Period” is defined in Section 7.10.

     “U.S. GAAP” means generally accepted accounting principles in the United States of America,
including interpretations, guidance, or bulletins issued in respect thereof, as in effect on the
date to which the document or calculation to which it refers relates, applied on a consistent basis
throughout the periods covered by such document or calculation.

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     1.2 Construction. In construing this Agreement, the following principles shall be
followed:

     (a) the terms “herein,” “hereof,” “hereby,” “hereunder,” and other similar terms, refer
to this Agreement as a whole and not only to the particular Article, Section, or other
subdivision in which any such terms may be employed;

     (b) references to Articles, Sections, Schedules, Exhibits and other subdivisions and
clauses refer to the Articles, Sections, Schedules, Exhibits and other subdivisions and
clauses of this Agreement;

     (c) a reference to any Person shall include such Person’s predecessors and successors;

     (d) all accounting terms not otherwise defined herein have the meanings assigned to
them in accordance with U.S. GAAP;

     (e) all references herein to amounts in dollars or preceded by “$” shall constitute
references to such amounts in U.S. currency;

     (f) no consideration shall be given to the captions of the Articles, Sections,
subsections, or clauses, which are inserted for convenience in locating the provisions of
this Agreement and not as an aid in its construction;

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

     (h) the word “includes” and its syntactical variants mean “includes, but is not limited
to” and corresponding syntactical variant expressions;

     (i) a defined term has its defined meaning throughout this Agreement, regardless of
whether it appears before or after the place in this Agreement where it is defined;

     (j) the plural shall be deemed to include the singular, and vice versa; and

     (k) each Exhibit and Schedule to this Agreement is a part of this Agreement, but if
there is any conflict or inconsistency between the main body of this Agreement and any
Exhibit or Schedule, the provisions of the main body of this Agreement shall prevail.

Article 2

TERMS OF THE TRANSACTION

     2.1 Agreement to Sell and to Purchase the Purchased Interests.

     (a) At the Closing, and on the terms and subject to the conditions in this Agreement, Seller
shall sell, transfer, deliver, and convey to LP Buyer, and LP Buyer shall purchase and

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accept from
Seller, the GLGTLP GP Interest, free and clear of all Encumbrances, other than restrictions on the
transfer of securities under Applicable Laws or under the partnership agreement of GLGTLP.

     (b) At the Closing, and on the terms and subject to the conditions in this Agreement, Seller
shall sell, transfer, deliver, and convey to Corp Buyer, and Corp Buyer shall purchase and accept
from Seller, the GLGTCO Shares, free and clear of all Encumbrances, other than restrictions on the
transfer of securities under Applicable Laws or under the certificate of incorporation or bylaws of
GLGTCO.

     2.2 Purchase Price and Payment.

     (a) In consideration of the sale of the GLGTLP GP Interest to LP Buyer, LP Buyer shall pay to
Seller at the Closing, in immediately available funds by confirmed wire transfer to a bank account
or accounts to be designated by Seller to LP Buyer not less than three business days prior to the
Closing, an amount equal to $750,000,000 (the “LP Base Purchase Price”), as adjusted by the
LP Estimated Adjustment Amount, plus the LP Interest Adjustment.

     (b) In consideration of the sale of the GLGTCO Shares to Corp Buyer, Corp Buyer shall pay to
Seller at the Closing, in immediately available funds by confirmed wire transfer to a bank account
or accounts to be designated by Seller to Corp Buyer not less than three business days prior to the
Closing, an amount equal to $60,000,000 (the “Corp Base Purchase Price”), as adjusted by
the Corp Estimated Adjustment Amount, plus the Corp Interest Adjustment.

     2.3 [Intentionally omitted.]

     2.4 Calculation of Closing Consideration. Not later than five business days prior
to the Closing Date, Seller shall deliver to Buyers a written statement from Seller setting forth
the calculations of (i) the LP Base Purchase Price, LP Estimated Adjustment Amount and LP Interest
Adjustment and (ii) the Corp Base Purchase Price, Corp Estimated Adjustment Amount and Corp
Interest Adjustment, in each case, in reasonable detail, based on the best information available to
Seller as of the date hereof, together with supporting work papers with respect to such
calculations. The LP Base Purchase Price shall be increased by the LP Estimated Adjustment Amount
if the LP Estimated Adjustment Amount is positive or decreased by the LP Estimated Adjustment
Amount if the LP Estimated Adjustment Amount is negative. The Corp Base Purchase Price shall be
increased by the Corp Estimated Adjustment Amount if the Corp Estimated Adjustment Amount is
positive or decreased by the Corp Estimated Adjustment Amount if the Corp Estimated Adjustment
Amount is negative.

     2.5 Calculation and Payment of Adjustment Amounts.

     (a) Adjustment Amounts. The “Corp Adjustment Amount” equals 50% of the
net increase to, or net decrease from, the GLGTCO Working Capital between the Balance Sheet
Date and the Effective Date. The “LP Adjustment Amount” equals 50% of the net
increase to, or net decrease from, the GLGTLP Working Capital between the Balance Sheet Date
and the Effective Date. For purposes of clarity, an increase in GLGTCO Working Capital or
GLGTLP Working Capital shall be represented by a positive number

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and a decrease in GLGTCO
Working Capital or GLGTLP Working Capital shall be represented by a negative number.

     (b) Effective Date Financial Statements and Adjustment Amount. As promptly as
practicable after the Closing Date, and in any event not later than 90 days after the
Closing Date, Buyers shall prepare and deliver to Seller a consolidated balance sheet of
GLGTCO as of the Effective Date (the “Effective Date GLGTCO Financial Statements”),
a consolidated balance sheet of GLGTLP as of the Effective Date (the “Effective Date
GLGTLP Financial Statements”, and collectively with the Effective Date GLGTCO Financial
Statements, the “Effective Date Financial Statements”), in each case prepared in
accordance with U.S. GAAP applied on the same basis as the balance sheet included in the GL
Financial Statements have been prepared (except that the Effective Date Financial Statements
shall be prepared using actual volumes and revenues and based on other best available
information through the period ending upon the date the same is delivered to Seller), and
(ii) a statement of Buyers (the “Adjustment Statement”) showing in reasonable detail
their calculation of the LP Adjustment Amount and the Corp Adjustment Amount, together with
supporting work papers. Seller agrees, at no cost to Buyers, to give Buyers and their
authorized representatives reasonable access to such employees, offices, and other
facilities and such books and records of Seller and its Affiliates as are reasonably
necessary to allow Buyers and their authorized representatives to prepare the Effective Date
Financial Statements, the LP Adjustment Amount and the Corp Adjustment Amount in compliance
with this Section 2.5. Buyers, at no cost to Seller, shall give representatives of
Seller reasonable access to the Acquired Companies’ premises, employees, and other
facilities and to its and the Acquired Companies’ books and records as are reasonably
necessary for purposes of reviewing, verifying, and auditing the calculations contained in
the Effective Date Financial Statements and the Adjustment Statement.

     (c) Dispute Resolution. The Adjustment Statement shall become final and
binding on Seller and Buyers as to the LP Adjustment Amount and the Corp Adjustment Amount
on the 90th day following the date the Adjustment Statement is received by Seller (the
“Dispute Deadline Date”), unless prior to the Dispute Deadline Date, Seller delivers
Notice to Buyers of its disagreement (“Notice of Disagreement”). Seller’s Notice of
Disagreement shall set forth all of Seller’s disputed items together with Seller’s proposed
changes thereto, including an explanation in reasonable detail of the basis on which Seller
proposes such changes. If Seller has delivered a timely Notice of Disagreement, then Seller
and Buyers shall use their good faith efforts to reach written agreement on the disputed
items to determine the LP Adjustment Amount and the Corp
Adjustment Amount. If all of Seller’s disputed items have not been resolved by Seller
and Buyers by the 120th day following Seller’s receipt of the Adjustment Statement, then
Seller’s disputed items that are still disputed shall be submitted to binding arbitration by
an independent nationally recognized accounting firm without any material financial
relationship to either Seller or Buyers, as mutually selected by Seller and Buyers within 5
business days after the end of the foregoing 120-day period (or in the absence of agreement
between Seller and Buyers by the close of business on such 5th business day as selected by
the president of the American Arbitration Association or his designee).

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The arbitrator’s
determination shall in no event be more favorable to Buyers than reflected on the Adjustment
Statement prepared by Buyers nor more favorable to Seller than shown in the proposed changes
delivered by Seller under its Notice of Disagreement. The fees and expenses of such
arbitration shall be borne 50% by Buyers and 50% by Seller. The determination of the
disputed items by such arbitration shall be final and binding upon Seller and Buyers as to
such disputed items.

     (d) Final Date. The LP Adjustment Amount and the Corp Adjustment Amount shall
be deemed to be finally determined in the amounts set forth in the Adjustment Statement on
the Dispute Deadline Date unless a Notice of Disagreement is timely given in accordance with
Section 2.5(c) with respect to the calculation thereof. If such a Notice of
Disagreement is timely given, the LP Adjustment Amount and the Corp Adjustment Amount shall
be deemed finally determined on the date that the selected accounting firm gives Notice to
Buyers and Seller of its determination with respect to all disputed items regarding the
calculation thereof, or, if earlier, the date on which Seller and Buyers agree in writing on
the amount thereof, in which case the LP Adjustment Amount and the Corp Adjustment Amount
shall be calculated in accordance with such determination or agreement, as the case may be.

     (e) Payments.

     (i) If the LP Adjustment Amount, as finally determined, exceeds the LP
Estimated Adjustment Amount, then LP Buyer shall pay to Seller the amount of such
excess, plus interest on the amount of such excess from (and including) the
Effective Date to (but excluding) the date of payment at the Prime Rate plus 1.0%.
If the LP Adjustment Amount, as finally determined, is less than the LP Estimated
Adjustment Amount, then Seller shall pay to LP Buyer the amount of such deficiency,
plus interest on the amount of such deficiency from (and including) the Effective
Date to (but excluding) the date of payment at the Prime Rate plus 1.0%.

     (ii) If the Corp Adjustment Amount, as finally determined, exceeds the Corp
Estimated Adjustment Amount, then Corp Buyer shall pay to Seller the amount of such
excess, plus interest on the amount of such excess from (and including) the
Effective Date to (but excluding) the date of payment at the Prime Rate plus 1.0%.
If the Corp Adjustment Amount, as finally determined, is less than the Corp
Estimated Adjustment Amount, then Seller shall pay to Corp Buyer the amount of such
deficiency, plus interest on the amount of such deficiency
from (and including) the Effective Date to (but excluding) the date of payment
at the Prime Rate plus 1.0%.

     (iii) Any payments due under this Section 2.5(e) shall be made within
three business days of the date the LP Adjustment Amount and the Corp Adjustment
Amount are deemed to be finally determined under Section 2.5(d).

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     (f) Definition. The “GLGTCO Working Capital” and the “GLGTLP
Working Capital,” in each case as of the Balance Sheet Date, are calculated as set forth
on Schedule 2.5(f). The “GLGTCO Working Capital” as of the Effective Date
shall be calculated using the Effective Date GLGTCO Financial Statements and shall be equal
to (1) the amount of current assets of GLGTCO, as reflected on the Effective Date GLGTCO
Financial Statements, less (2) the amount of current liabilities of GLGTCO, as reflected on
the Effective Date GLGTCO Financial Statements. The “GLGTLP Working Capital” as of
the Effective Date shall be calculated using the Effective Date GLGTLP Financial Statements
and shall be equal to (1) the amount of current assets of GLGTLP, as reflected on the
Effective Date GLGTLP Financial Statements, less (2) the amount of current liabilities of
GLGTLP, as reflected on the Effective Date GLGTLP Financial Statements. Notwithstanding the
foregoing sentence, (i) for the purpose of calculating the GLGTCO Working Capital, none of
the following have been or shall be included in either current assets or current
liabilities: (A) assets or liabilities of GLGTCO relating to Taxes (including any deferred
Tax assets or liabilities); (B) any assets or liabilities of GLGTCO relating to an
intercompany account; (C) cash or cash equivalents on hand or accounts receivable
constituting the proceeds of insurance received or receivable by GLGTCO in respect of a
casualty loss experienced by GLGTCO after the Balance Sheet Date, which casualty loss
involves an asset reflected as a non-current asset as of the Balance Sheet Date; and (D) any
Excluded Assets and (ii) for the purpose of calculating the GLGTLP Working Capital, none of
the following have been or shall be included in either current assets or current
liabilities: (A) assets or liabilities of GLGTLP relating to Taxes (including any deferred
Tax assets or liabilities); (B) the current portion of any principal payment obligation with
respect to Long-Term Debt; (C) cash or cash equivalents on hand or accounts receivable
constituting the proceeds of insurance received or receivable by GLGTLP in respect of a
casualty loss experienced by GLGTLP after the Balance Sheet Date, which casualty loss
involves an asset reflected as a non-current asset as of the Balance Sheet Date; and (D) any
Excluded Assets. Except to the extent specifically contemplated above, Seller represents
and warrants to Buyers that the GLGTCO Working Capital and GLGTLP Working Capital as of the
Balance Sheet Date has been calculated in a manner consistent with the method for
calculating GLGTCO Working Capital and GLGTLP Working Capital, respectively, as of the
Effective Date as set forth in this Section 2.5(f).

     2.6 Acknowledgement of Obligations. For the avoidance of doubt, subject to the
terms and conditions of this Agreement, including Sections 7.3 and 7.8 and
Articles 11 and 12, (i) Buyers acknowledge and agree that, following the Closing,
the Acquired Companies shall remain obligated for their
liabilities and obligations, including the Long-Term Debt and accrued and unpaid interest
thereon, outstanding as of the Closing (the “Assumed Obligations”), and (ii) the Acquired
Companies shall pay, perform, and discharge the Assumed Obligations from and after the Closing in
accordance with their terms.

     2.7 Purchase Price Allocation.  Seller and Buyers agree that the Purchase Price
shall be allocated among the Acquired Companies for Tax purposes in accordance with the allocation
set forth on Schedule 2.7 (the “Purchase Price Allocation Schedule”). The Purchase
Price Allocation Schedule shall be revised to take into account subsequent adjustments under this

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Agreement to the Purchase Price after the Closing. Seller and Buyers shall each report the Tax
consequences of the purchase and sale contemplated hereby in a manner consistent with the Purchase
Price Allocation Schedule and shall not take any inconsistent position on any Tax Returns unless
required by Applicable Law.

Article 3

CLOSING

     3.1 Closing. Subject to fulfillment or waiver of the conditions in this Agreement,
the Closing shall take place on the Closing Date. The Closing shall take place at the offices of
Andrews Kurth LLP, 600 Travis Street, Houston, Texas 77002 or such other place as the Parties may
agree, at 10:00 a.m., Houston, Texas time, as promptly as practicable following the satisfaction or
waiver of all conditions to Closing in Articles 8 and 9 (other than conditions that
by their nature are to be satisfied at the Closing) or at such other time as the Parties may agree.
For the avoidance of doubt, subject to the satisfaction or waiver of all conditions to Closing in
Articles 8 and 9 (other than conditions that by their nature are to be satisfied at
the Closing), the Parties agree that the Closing shall occur on the same business day as the
Closing of the transactions under the Pipeline/Storage PSA. Unless otherwise agreed, all Closing
transactions shall be deemed to have occurred simultaneously.

     3.2 Deliveries by Seller. At the Closing, Seller will deliver the following
documents to Buyers:

     (a) A certificate executed on behalf of Seller by the president, senior vice president,
or vice president of Seller, dated the Closing Date, representing and certifying, in such
detail as Buyers may reasonably request, that the conditions set forth in Sections
9.1 and 9.2 have been fulfilled.

     (b) The certificates, instruments, and documents listed below:

     (i) An assignment or other transfer document for the transfer of the GLGTLP GP
Interest to LP Buyer in a form acceptable to Buyers, free and clear of all
Encumbrances.

     (ii) The stock certificates representing all of the GLGTCO Shares duly endorsed
in blank, or accompanied by stock powers duly executed in blank, and otherwise in
form acceptable to Buyers for transfer of the GLGTCO Shares to Corp Buyer free and
clear of all Encumbrances.

     (iii) The written resignations of the directors and officers appointed or
designated by Seller or any of its Affiliates to the Acquired Companies, such
resignations to be effective concurrently with the Closing on the Closing Date.

     (c) An agreement in form and substance mutually satisfactory to Seller and Buyers
pursuant to which each of Buyers and any other Affiliate of Buyers that is a party to or is
otherwise bound by the agreements referenced below, and each of Seller; American Natural
Resources Company; ANR Pipeline Company; El Paso CNG

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Company, L.L.C.; ANR Capital
Corporation; Seafarer US Pipeline System, Inc. and any other Affiliate of Seller that is a
party to or is otherwise bound by the agreements referenced below, is released from, and
waives any rights it may have under, (i) the Capital Contribution Agreement, dated as of
April 5, 1990, as amended, among American Natural Resources Company, Seller, Corp Buyer,
TransCanada GL, Inc. and GLGTCO, including any consents, assignments, assumptions, waivers
or other instruments related thereto, (ii) the Corporate Agreement, date as of August 20,
1965, as amended, between American Natural Resources Company and TransCanada PipeLines
Limited, including any consents, assignments, assumptions, waivers or other instruments
related thereto, or (iii) Article VII of the Agreement of Limited Partnership of GLGTLP
dated as of April 5, 1990 among TransCanada GL Inc., Coastal Great Lakes, Inc. and GLGTCO,
as amended including any consents, assignments, assumptions, waivers or other instruments
related thereto.

     (d) Such other certificates, instruments of conveyance, and documents as may be
reasonably requested by Buyers prior to the Closing Date to carry out the intent and
purposes of this Agreement.

     3.3 Deliveries by Buyers. At the Closing, Buyers will deliver the following
documents to Seller:

     (a) A certificate executed by the president, senior vice president, or vice president
of the Corp Buyer and a similar officer of the general partner of the LP Buyer, in each case
dated the Closing Date, representing and certifying, in such detail as Seller may reasonably
request, that the conditions set forth in Sections 8.1 and 8.2 have been
fulfilled.

     (b) Such other certificates, instruments, and documents as may be reasonably requested
by Seller prior to the Closing Date to carry out the intent and purposes of this Agreement.

     (c) Payment of the sum of the LP Base Purchase Price, as adjusted by the LP Estimated
Adjustment Amount, and the LP Interest Adjustment by LP Buyer, in
immediately available funds to the bank account or accounts designated by Seller under
Section 2.2.

     (d) Payment of the sum of the Corp Base Purchase Price, as adjusted by the Corp
Estimated Adjustment Amount, and the Corp Interest Adjustment by Corp Buyer, in immediately
available funds to the bank account or accounts designated by Seller under Section
2.2.

     (e) An executed counterpart of the agreement specified in Section 3.2(c).

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Article 4

REPRESENTATIONS AND WARRANTIES OF SELLER

     Except as set forth in the Schedules (it being understood that a representation or warranty
shall not be deemed to be qualified by any item disclosed or described in any Schedule unless it is
reasonably apparent that such item is applicable to such representation or warranty), Seller
represents and warrants to Buyers as follows:

     4.1 Corporate Organization. Seller is a limited liability company duly organized,
validly existing, and in good standing under the laws of Delaware.

     4.2 Acquired Companies.

     (a) List of Acquired Companies. Except as set forth on Schedule 4.2,
to the Seller’s knowledge, the Acquired Companies do not own, directly or indirectly, any
capital stock or other equity securities of any corporation or have any direct or indirect
equity or ownership interest in any other Person. Schedule 4.2 lists (i) each
Acquired Company, the jurisdiction of incorporation or formation of each Acquired Company,
and the authorized (in the case of capital stock) and outstanding capital stock or other
equity interests held or owned by Seller in each Acquired Company (including the owners
thereof), and (ii) to Seller’s knowledge, each of the other entities in which the Acquired
Companies own any equity interests. To Seller’s knowledge, each corporate Acquired Company
is a corporation duly organized, validly existing, and in good standing under the laws of
the jurisdiction of its incorporation and each other Acquired Company is duly formed,
validly existing and in good standing under the laws of the jurisdiction of its formation.
To Seller’s knowledge, each Acquired Company has all requisite corporate or other power and
authority, as applicable, to own, lease, and operate its assets and properties and to carry
on its business as now being conducted. To Seller’s knowledge, no actions or proceedings to
dissolve any Acquired Company are pending.

     (b) No Encumbrances. Except as otherwise indicated on Schedule 4.2,
the Purchased Interests constitute the only equity interests in the Acquired Companies owned
by Seller and such Purchased Interests are owned directly or indirectly by Seller free and
clear of all Encumbrances, other than (i) restrictions on transfer that may be imposed by
federal or state securities laws, (ii) those that arise by virtue of any actions taken by or
on behalf of either Buyer or its respective Affiliates, or (iii) the restrictions on
transfer that may be imposed under the certificate of incorporation, bylaws, or other
organizational documents of the Acquired Companies. All outstanding shares of capital stock
of each corporate Acquired Company owned directly or indirectly by Seller have been validly
issued and are fully paid and nonassessable. All equity interests of each other Acquired
Company owned directly or indirectly by Seller have been validly issued and are fully paid.
None of the shares of capital stock or other equity interests of any Acquired Company owned
directly or indirectly by Seller are subject to, or were issued in violation of, any
preemptive or similar rights.

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     (c) No Options. Except for equity interests in the Acquired Companies that are
owned by Affiliates of the Corp Buyer as set forth in Section 5.9 or as set forth on
Schedule 4.2, there are outstanding (i) to Seller’s knowledge, no shares of capital
stock or other equity securities of any Acquired Company, (ii) to Seller’s knowledge, no
securities of any Acquired Company convertible into or exchangeable for shares of capital
stock or other equity securities of any Acquired Company, (iii) no options or other rights
to acquire from Seller or, to Seller’s knowledge, any Acquired Company, and no obligation of
Seller or, to Seller’s knowledge, any Acquired Company to issue or sell, any shares of
capital stock or other equity securities, and (iv) to Seller’s knowledge, no equity
equivalent, interests in the ownership or earnings, or other similar rights of or with
respect to any Acquired Company or any securities convertible into or exchangeable for such
capital stock or equity securities. There are no outstanding obligations of Seller or, to
Seller’s knowledge, any Acquired Company to repurchase, redeem, or otherwise acquire any of
the foregoing shares, securities, options, equity equivalents, interests, or rights.

     (d) Qualification. To Seller’s knowledge, each of the Acquired Companies is
duly qualified or licensed to do business as a corporation, foreign corporation, limited
partnership, or limited liability company, as applicable, and the Acquired Companies are
each in good standing in each of the jurisdictions set forth opposite its name on
Schedule 4.2, which are all the jurisdictions in which the assets or property owned,
leased, or operated by it or the conduct of its business requires such qualification or
licensing, except jurisdictions in which the failure to be so qualified or licensed would
not, individually or in the aggregate, have or reasonably be expected to have a Material
Adverse Effect.

     4.3 Charter and Bylaws. To Seller’s knowledge, Seller has made available to
Buyers in the Data Site accurate and complete copies of the certificate of incorporation and bylaws
(or equivalent organizational documents) as currently in effect for each Acquired Company.

     4.4 Authority Relative to this Agreement. Seller has full power and authority to
execute, deliver, and perform this Agreement and the Related Agreements. The execution, delivery,
and performance by Seller of this Agreement and the Related Agreements, and the consummation by it
of the transactions contemplated hereby and thereby, have been duly authorized by all necessary
action on the part of Seller and no other action on the part of Seller or any Affiliate or member
of Seller is necessary to authorize such execution, delivery and performance. This Agreement has
been duly executed and delivered by Seller and constitutes, and each Related Agreement has been, or
when executed will be, duly executed and delivered by Seller and constitutes, or when executed and
delivered will constitute, valid and legally binding obligations of Seller, enforceable against
Seller in accordance with its terms, except that such enforceability may be limited by (i)
applicable bankruptcy, insolvency, reorganization, moratorium, and similar laws affecting
creditors’ rights generally and (ii) equitable principles which may limit the availability of
certain equitable remedies (such as specific performance) in certain instances.

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     4.5 No Conflict. The execution, delivery, and performance by Seller of this
Agreement and the Related Agreements and the consummation of the transactions contemplated hereby
or thereby do not and will not (x) violate or breach the certificate of incorporation or by-laws
(or equivalent organizational documents) of (i) Seller or (ii) to Seller’s knowledge, GLGTCO,
GLGTLP or any other Acquired Company, (y) violate or breach any Applicable Law binding upon Seller
or, to Seller’s knowledge, any Acquired Company, or any of their respective assets or properties,
or (z) to Seller’s knowledge, violate or result in any breach of, or constitute a default (or event
which with the giving of notice or lapse of time, or both, would become a default) under, or give
to others any rights of termination, amendment, acceleration or cancellation of, or result in the
creation of any Encumbrance on any of the assets or properties of any Acquired Company under, any
note, bond, mortgage, indenture, contract, agreement, lease, license, permit, franchise, or other
instrument relating to such assets or properties to which any Acquired Company is a party or by
which any of such assets or properties is bound or affected, except in the case of clauses (y) and
(z) as would not, individually or in the aggregate, have or reasonably be expected to have, a
Material Adverse Effect.

     4.6 Consents, Approvals, and Licenses. No consent, approval, authorization,
license, order or Permit of, or declaration, filing or registration with, or notification to, any
Governmental Entity, or any other Person, is required to be made or obtained by Seller or, to
Seller’s knowledge, any Acquired Company in connection with the execution, delivery, and
performance of this Agreement or the Related Agreements and the consummation of the transactions
contemplated hereby or thereby, except: (a) as set forth on Schedule 4.6; (b) where the
failure to obtain such consents, approvals, authorizations, licenses, orders, or Permits of, or to
make such declarations, filings, or registrations or notifications, would not, individually or in
the aggregate, have or reasonably be expected to have, a Material Adverse Effect; and (c) as may be
necessary as a result of any facts or circumstances relating solely to Buyers.

     4.7 Financial Statements and Reports. Schedule 4.7(a) contains (i)(A) an
audited consolidated balance sheet of GLGTCO as of December 31, 2005 and an unaudited consolidated
balance sheet of GLGTCO as of September 30, 2006, (B) an audited consolidated statement of income
of GLGTCO for the year ended December 31, 2005 and an unaudited consolidated statement of income of
GLGTCO for the nine-month period ended September 30, 2006, and (C) an audited consolidated
statement of cash flow of GLGTCO for the year ended December 31, 2005 (collectively, the
“GLGTCO Financial Statements”), and (ii)(A) an audited consolidated balance sheet of GLGTLP
as of December 31, 2005 and an unaudited consolidated balance sheet of GLGTLP as of September 30,
2006, (B) an audited consolidated statement of income of GLGTLP for the year
ended December 31, 2005 and an unaudited consolidated statement of income of GLGTLP for the
nine-month period ended September 30, 2006, and (C) an audited consolidated statement of cash flow
of GLGTLP for the year ended December 31, 2005 (collectively, the “GLGTLP Financial
Statements” and with the GLGTCO Financial Statements, the “GL Financial Statements”).
To Seller’s knowledge, the GL Financial Statements have been prepared in accordance with U.S. GAAP,
except as set forth in the notes thereto, consistently applied throughout the periods covered
thereby. To Seller’s knowledge, the GL Financial Statements are consistent with the books and
records of GLGTCO and GLGTLP, as the case may be, and fairly present, in all material respects, the
financial position, results of operations, and cash flows of GLGTCO or GLGTLP, as the case may be,
as of the date and for

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the period indicated. To Seller’s knowledge, except as disclosed on
Schedule 4.7, there are no significant deficiencies, including material weaknesses in the
design or operation of internal controls over the Acquired Companies’ financial reporting.

     4.8 Absence of Certain Changes. Except as disclosed on Schedule 4.8, as
contemplated by other provisions of this Agreement, or as would not, individually or in the
aggregate, have or reasonably be expected to have a Material Adverse Effect, since the Balance
Sheet Date, to Seller’s knowledge, (i) there has not been any adverse change in the assets,
liabilities, business, operations, results of operation, or financial condition of the Acquired
Companies, (ii) the businesses of the Acquired Companies have been conducted only in the ordinary
course consistent with past practice, (iii) none of the Acquired Companies has incurred any
liability or entered into any agreement, in each case, outside the ordinary course of business
consistent with past practice, (iv) none of the Acquired Companies has suffered any unrepaired
loss, damage, destruction, or other casualty to any of its property, plant, equipment, or
inventories (whether or not covered by insurance), and (v) the Acquired Companies have not made any
change in compensation levels of their senior executives, any changes in the manner in which other
employees of the Acquired Companies are generally compensated, or any provision of additional or
supplemental benefits for employees of the Acquired Companies generally, except normal periodic
increases or promotions effected in the ordinary course of business consistent with past practice.

     4.9 Undisclosed Liabilities. To Seller’s knowledge, the Acquired Companies do not
have any liability or obligation, except (i) liabilities or obligations reflected on the GL
Financial Statements, (ii) liabilities or obligations which have arisen since the Balance Sheet
Date in the ordinary course of business consistent with past practice, (iii) liabilities or
obligations reflected on Schedule 4.9, (iv) liabilities or obligations with respect to the
Tax and environmental matters, which are addressed by the representations and warranties set forth
in Section 4.10 and 4.15, respectively, and (v) other liabilities or obligations
which, individually or in the aggregate, have not had and would not be reasonably expected to have
a Material Adverse Effect.

     4.10 Tax Matters. Except as disclosed on Schedule 4.10:

     (a) to Seller’s knowledge, all material Tax Returns required to be filed by or with
respect to the Acquired Companies (including consolidated, combined, or unitary Tax Returns
in which the Acquired Companies are members), have been timely filed with the appropriate
Taxing Authorities in all jurisdictions in which such Tax Returns are required to be filed;

     (b) to Seller’s knowledge, such Tax Returns were correct and complete in all material
respects as to the Acquired Companies, and all Taxes due and payable on such Tax Returns
have been paid in full or adequate reserves (determined in accordance with U.S. GAAP) have
been provided for, on the GLGTCO Financial Statements and on the GLGTLP Financial Statements
as to the Acquired Companies;

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     (c) to Seller’s knowledge, there are no outstanding agreements or waivers extending the
statutory period of limitations applicable to any material Tax Returns filed by or with
respect to, the Acquired Companies;

     (d) to Seller’s knowledge, none of the Tax Returns of or with respect to any of the
Acquired Companies, is currently being audited or examined by any Taxing Authority;

     (e) to Seller’s knowledge, no material deficiency for any Taxes has been assessed with
respect to any of the Acquired Companies, that has not been abated, paid in full, or
adequately provided for on the GL Financial Statements;

     (f) to Seller’s knowledge, there is no material dispute or material claim concerning
any Tax liability of any of the Acquired Companies, claimed or raised by any Taxing
Authority in writing;

     (g) all material Taxes that, to Seller’s knowledge, any of the Acquired Companies is or
was required to withhold or collect have been duly withheld or collected, and to the extent
required, have been paid to the proper Taxing Authority;

     (h) to Seller’s knowledge, no payments are due or will become due by any of the
Acquired Companies, under any Tax sharing agreement or similar arrangement;

     (i) each of the Acquired Companies is and has been since its inception classified for
federal tax purposes in the manner described in Treasury Regulations Sections 301.7701-2 and
-3(b) (and any comparable provision of Applicable Law of state and local jurisdictions that
permit such treatment);

     (j) to Seller’s knowledge, a valid election under Section 754 of the Code is or will be
in effect for each of the Acquired Companies classified as a partnership for federal tax
purposes for the taxable year in which Buyers acquire the Purchased Interests of the
Company; and

     (k) to Seller’s knowledge, none of the Acquired Companies is required to indemnify any
other party for taxes owed by any other party.

     4.11 Compliance With Laws. To Seller’s knowledge, the Acquired Companies are in
compliance with all Applicable Laws (other than Applicable Environmental Laws, as to which Seller’s
sole representations and warranties are set forth in Section 4.15, and Taxes, as to which
Seller’s sole representations and warranties are set forth in Section 4.10), except (i) as
disclosed on Schedule 4.11 or (ii) for noncompliance with such Applicable Laws that would
not, individually or in the aggregate, have or reasonably be expected to have a Material Adverse
Effect. Since January 1, 2004, to Seller’s knowledge, none of the Acquired Companies (x) has
received written notice of any material violation of any Applicable Law (other than (I) Applicable
Environmental Laws, as to which Seller’s sole representations and warranties are set forth in
Section 4.15, (II) Taxes, as to which Seller’s sole representations and warranties are set
forth in Section 4.10 and (III) such notices that have been resolved with the applicable

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Governmental Entity without liability or cost to the Acquired Companies after the Closing or (y) is
in default in any material respect under any judgment, order, writ, injunction or decree of any
Governmental Entity applicable to the Acquired Companies or any of their respective assets,
properties or operations.

     4.12 Legal Proceedings. Except as disclosed on Schedule 4.12, to Seller’s
knowledge, there are no material Proceedings pending or threatened against or involving any of the
Acquired Companies or any properties of any of the Acquired Companies. Except (i) as disclosed on
Schedule 4.12 and (ii) for judgments, orders, writs, injunctions or decrees issued by FERC,
to Seller’s knowledge, none of the Acquired Companies is subject to any material judgment, order,
writ, injunction, or decree of any Governmental Entity. Except as set forth in Schedule
4.12, to Seller’s knowledge, no Acquired Company is subject to any judgment, order, writ,
injunction, or decree issued by FERC that would, individually or in the aggregate, have, or
reasonably be expected to have, a Material Adverse Effect. Except as disclosed on Schedule
4.12, there are no Proceedings pending or, to Seller’s knowledge, threatened, seeking to
restrain, prohibit, or obtain damages or other relief from Seller or the Acquired Companies in
connection with this Agreement, the Related Agreements or the transactions contemplated hereby or
thereby.

     4.13 Acquired Company Agreements.

     (a) List of Agreements. To Seller’s knowledge, set forth on Schedule
4.13 is a list of the following agreements and contracts to which any Acquired Company
is a party or by which any Acquired Company is otherwise bound:

     (i) any commitment, agreement or purchase order that could, in accordance with
its terms, involve aggregate payments by any Acquired Company of more than
$5,000,000 within the remaining term of such agreement;

     (ii) any note, loan, evidence of indebtedness, letter of credit or guarantee of
the indebtedness or performance of any obligations of another Person;

     (iii) any lease under which any Acquired Company is the lessor or lessee of
real or personal property, which lease (A) cannot be terminated by any Acquired
Company without penalty upon not more than 180 calendar days’ notice and (B)
involves an annual base rental during 2006 in excess of $5,000,000;

     (iv) any contracts or agreements containing covenants limiting the freedom of
any Acquired Company or any Acquired Company and its Affiliates, in any material
respect, after the Closing Date to engage in any line of business or compete with
any Person (other than the partnership agreement, certificate of incorporation or
other governing document of any of the Acquired Companies);

     (v) any pending sale or lease of real or personal property of any Acquired
Company (other than sales of natural gas, natural gas liquids, or other items of
inventory in the ordinary course of business) in excess of $5,000,000;

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     (vi) any gas purchase contracts, gas sales contracts, gas processing
agreements, transportation agreements, natural gas liquids sales contracts,
operational balancing agreements, storage agreements and gathering agreements
involving payments to or from any Acquired Company during calendar year 2006 in
excess of $5,000,000;

     (vii) any contract requiring a capital expenditure or a commitment for a
capital expenditure in excess of $5,000,000;

     (viii) any material obligation to make future payments, contingent or
otherwise, arising out of or relating to the acquisition or disposition of any
business, assets, or stock of any Acquired Company or of any other Person by any
Acquired Company;

     (ix) any joint venture, joint development or partnership agreement (other than
the partnership or limited liability company operating agreements of the Acquired
Companies);

     (x) documents granting any power of attorney to any officer or employee of
Seller or any of its Affiliates (other than the Acquired Companies) with respect to
the material affairs of any Acquired Company;

     (xi) any material agreement between any Acquired Company, on the one hand, and
a Seller or any Affiliate of a Seller (other than an Acquired Company), on the other
hand, including agreements with respect to the purchase, sale, transportation, or
storage of natural gas, including operational balancing and measurement agreements;
and

     (xii) all material amendments, modifications, extensions or renewals of any of
the foregoing.

     (b) No Violations. To Seller’s knowledge, except as disclosed in Schedule
4.13, none of the Acquired Companies is in material breach or material
violation of, or material default under, any of the Scheduled Contracts. To Seller’s
knowledge, each Scheduled Contract, in all material respects, is a valid agreement,
arrangement, or commitment of the Acquired Company which is a party thereto, enforceable
against such Acquired Company in accordance with its terms and, in all material respects, is
a valid agreement, arrangement, or commitment of each other party thereto, enforceable
against such party in accordance with its terms, except in each case (i) where
enforceability may be limited by bankruptcy, insolvency, or other similar laws affecting
creditors’ rights generally and except where enforceability is subject to the application of
equitable principles or remedies, or (ii) where such Scheduled Contract has expired or been
terminated by its terms. To Seller’s knowledge, true and complete electronic copies of the
Scheduled Contracts were made available to Buyers on the Data Site.

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     4.14 Employee Plans and Labor Matters.

     (a) Disclosure. To the extent the following are available to Seller, Seller
has heretofore provided to Buyers or made available on the Data Site (i) a true and complete
copy of each Employee Plan that the Acquired Companies contribute to or participate in (the
“Acquired Company Plans”) (each of which is listed on Schedule 4.14(a)) and
any accompanying summary plan description, (ii) each trust agreement relating to such plan,
(iii) the most recent IRS Form 5500 for such plan, and (iv) the most recent determination
letter issued by the IRS with respect to any such plan intended to be qualified under
Section 401(a) of the Code. To Seller’s knowledge, also set forth on Schedule
4.14(a) is a list of each Acquired Company Plan that is sponsored or maintained by an
Acquired Company (the “Acquired Company Sponsored Plans”).

     (b) ERISA. To Seller’s knowledge, (i) except as set forth in Schedule
4.14(b), none of the Acquired Company Plans, is a “multiemployer pension plan,” as
described in Section 3(37) of ERISA, or a “multiple employer pension plan,” as defined in
Section 4063 of ERISA, and (ii) no material liability under Title IV of ERISA has been
incurred by the Acquired Companies or any Acquired Company Plan that has not been satisfied
in full, other than liability for premiums that are not yet due and payable to the Pension
Benefit Guaranty Corporation. To Seller’s knowledge, no Acquired Company Plan has an
“accumulated funding deficiency” (within the meaning of Section 302 of ERISA and Section 412
of the Code). To Seller’s knowledge, full payment has been made, or will be made in
accordance with Section 404(a)(6) of the Code, of all contributions which any Acquired
Company is required to pay under the terms of each of the Acquired Company Plans and Section
412 of the Code.

     (c) Qualification. To Seller’s knowledge, each Acquired Company Plan intended
to be qualified under Section 401(a) of the Code has received a favorable determination
letter from the IRS to the effect that it is so qualified, and to Seller’s knowledge,
nothing has occurred since the date of such letter to adversely affect the qualified status
of each such plan. To Seller’s knowledge, each Acquired Company Plan has been operated in
all material respects in accordance with its terms and the
requirements of Applicable Law. To Seller’s knowledge, there have been no non-exempt
“prohibited transactions” within the meaning of Section 4975 of the Code or Section 406 of
ERISA with respect to any Acquired Company Plan subject to 401(a) of the Code to which
either of those sections may apply that could reasonably be expected to result in a material
liability to any of the Acquired Companies.

     (d) Labor Matters. Except as set forth in Schedule 4.14(d), to
Seller’s knowledge, none of the Acquired Companies is or has been during the past three
years (i) a party to, or bound by, any collective bargaining agreement with a labor union or
labor organization, or (ii) the subject of any formal proceeding asserting that any Acquired
Company has committed an unfair labor practice or is seeking to compel it to bargain with
any labor organization as to wages or conditions of employment. To the Seller’s knowledge,
there are no organizational efforts presently being made or threatened by or on behalf of
any labor union with respect to employees of any Acquired

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Company. To Seller’s knowledge,
there is no pending or, to the knowledge of Seller, threatened grievance, arbitration
demand, charge, complaint, or other legal action against any Acquired Company by the
National Labor Relations Board (the “NLRB”) or any comparable agency of any state of
the United States. To Seller’s knowledge, none of the Acquired Companies has taken any
action with respect to the transactions contemplated hereby that could constitute a “mass
layoff” or “plant closing” within the meaning of the Worker Adjustment and Retraining
Notification (WARN) Act of 1989 or that could otherwise trigger any notice requirement or
liability under any local or state plant closing notice law.

     4.15 Environmental Matters; Pipeline Matters.

     (a) Environmental Matters. Except as set forth on Schedule 4.15, to
Seller’s knowledge, (i) the Acquired Companies and their respective operations are in
compliance with all Applicable Environmental Laws in all material respects, (ii) none of the
Acquired Companies is the subject of any outstanding order or judgment from a Governmental
Entity under Applicable Environmental Laws requiring remediation or payment of a fine in an
amount in excess of $5,000,000 individually or in the aggregate, (iii) since January 1,
2004, neither Seller nor any Acquired Company has received any written notice of any
material liability or material violation from any Governmental Entity under any Applicable
Environmental Law, other than such notices that have been resolved with the applicable
Governmental Entity without any liability or cost of the Acquired Companies related thereto
after the Closing Date, and (iv) except for actions or conditions which have not had and
would not reasonably be expected to have, individually or in the aggregate, a Material
Adverse Effect, no condition exists on any property currently owned or leased by the
Acquired Companies which would subject any Acquired Company or such property to any remedial
obligations or liabilities (including liabilities to Third Parties or to private tort
plaintiffs) under any Applicable Environmental Laws that does not have an adequate reserve
(as determined in accordance with U.S. GAAP) on the GL Financial Statements.

     (b) Pipeline Matters. As of the date of this Agreement, to Seller’s knowledge,
there have been no ruptures of any pipelines or related facilities of the Acquired Companies
resulting in significant injury, loss of life, or material property damage, except to the
extent that any liabilities or costs arising as a result of such pipeline ruptures have been
substantially resolved so that Seller does not reasonably expect that the Acquired Companies
will incur material liabilities or costs related thereto after the Closing Date.

     4.16 Insurance. To Seller’s knowledge, set forth on Schedule 4.16(i) is a
list of all Acquired Company Insurance Policies. Except as set forth on Schedule 4.16(ii),
Seller and its Affiliates (other than the Acquired Companies) do not maintain any insurance policy
with respect to any of the assets or operations of any Acquired Company. To Seller’s knowledge,
all premiums due and payable with respect to the Acquired Company Insurance Policies have been
timely paid.

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     4.17 Title to Assets. To Seller’s knowledge, except (i) for the Excluded Assets,
or (ii) as shown in Schedule 4.17, each of the Acquired Companies has good and valid title
to its material property interests and the material assets used or necessary to conduct the
business of such Acquired Company as presently conducted, free and clear of Encumbrances, other
than Permitted Encumbrances.

     4.18 Intellectual Property Rights. Except (i) for the assets described in
Section 7.8 or listed on Schedule 7.8, and (ii) for commercially available
software, to the Seller’s knowledge (a) the Acquired Companies own or have the right to use under a
license, sublicense, other agreement all material intellectual property necessary for the
businesses conducted by the Acquired Companies, (b) each item of material intellectual property
owned or used by the Acquired Companies as of the Balance Sheet Date will be in all material
respects owned or available for use by the Acquired Companies on substantially the same terms and
conditions immediately subsequent to the Closing, (c) such material intellectual property is not
the subject of any Encumbrance or claim of license or ownership of any Third Party that would
materially adversely affect the Acquired Companies’ rights in, or ability to use or exploit, such
intellectual property, (d) since January 1, 2004, the Acquired Companies have not received any
written notice, claim, or demand alleging any misappropriation or infringement of any material
intellectual property rights of Third Parties, (e) the Acquired Companies have not engaged in any
conduct, or omitted to perform any necessary act, the result of which is reasonably likely to
invalidate or adversely affect the enforceability of any material intellectual property rights and
(f) there is no infringement, misappropriation or improper use of the Acquired Companies’ rights in
such material intellectual property by any Third Party.

     4.19 Permits. To Seller’s knowledge, each of the Acquired Companies possesses all
Permits necessary for it to own its assets and operate its business as currently conducted, except
where
the failure to hold any such Permit would not, individually or in the aggregate, reasonably be
expected to have a Material Adverse Effect on the Acquired Companies taken as a whole. To Seller’s
knowledge, all such Permits are in full force and effect and, except as reflected in Schedule
4.19, none of the Acquired Companies has received any written notifications concerning
violations of any such Permits. To Seller’s knowledge, there are no Proceedings pending or
threatened before any Governmental Entity, arbitrator, or mediator that seek the revocation,
cancellation, suspension, or adverse modification thereof, except for such matters as would not,
individually or in the aggregate, have or reasonably be expected to have a Material Adverse Effect.

     4.20 Regulatory Matters. To Seller’s knowledge, each of the Acquired Companies is
in compliance in all material respects with (i) all applicable provisions of the Natural Gas Act
(the “NGA”) and (ii) all applicable orders and regulations of FERC that pertain to the
business or operations of that Acquired Company. No approval of FERC is required in connection
with execution of this Agreement by Seller or the consummation of the transactions contemplated
hereby with respect to Seller or, to Seller’s knowledge, the Acquired Companies.

     4.21 [Intentionally Omitted].

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     4.22 Brokerage Fees. Except as set forth on Schedule 4.22, neither Seller
nor any of its Affiliates (other than the Acquired Companies) or, to Seller’s knowledge, any
Acquired Company has retained any financial advisor, broker, agent, or finder or paid or agreed to
pay any financial advisor, broker, agent, or finder on account of this Agreement or the
transactions contemplated hereby for which Buyers or any Acquired Company shall have any
responsibility or liability.

     4.23 Transactions with Directors, Officers, Employees and Affiliates. Except for
the Purchased Interests or as set forth on Schedule 4.23, Seller and its Affiliates (other
than the Acquired Companies) do not own or have any rights (other than transportation rights on the
facilities of the Acquired Companies) in or to any of the material assets, properties or rights
used by the Acquired Companies.

     4.24 Long-Term Debt. To Seller’s knowledge, (a) the Acquired Companies have no
other indebtedness for borrowed money that would be treated as long-term debt under U.S. GAAP
(including the amount of unamortized debt discount, if any) other than the Long-Term Debt and (b)
set forth on Schedule 4.24 is the principal amount outstanding under each of the items
listed in the definition of Long-Term Debt (on a per item basis) as of the date hereof.

     4.25 Limitations. Except as and to the extent set forth in this Agreement, Seller
makes no representations or warranties whatsoever to Buyers and hereby disclaim all liability and
responsibility for any representation, warranty, statement, or information made, communicated, or
furnished (orally or in writing) to Buyers or their representatives (including any opinion,
information, projection, or advice that may have been or may be provided to Buyers by any director,
officer, employee, agent, consultant, or representative of Seller or any Affiliate thereof,
including those in the Data Site or in the Confidential Memorandum dated September 2006). Seller
makes no representations or warranties to Buyers regarding the probable success or profitability of
the businesses of the Acquired Companies.

Article 5

REPRESENTATIONS AND WARRANTIES OF BUYERS

     Each Buyer (with respect to itself, but not with respect to the other Buyer) represents and
warrants to Seller as follows (it being understood and agreed that for purposes of the
representations and warranties in this Article 5, LP Buyer shall not be deemed to be an affiliate
of Corp Buyer or Buyer Guarantors, and vice versa):

     5.1 Organization. Corp Buyer is a corporation duly organized, validly existing,
and in good standing under the laws of the jurisdiction of its incorporation. LP Buyer is a
limited partnership duly formed, validly existing, and in good standing under the laws of the
jurisdiction of its formation.

     5.2 Authority Relative to This Agreement. Such Buyer has full power and authority
to execute, deliver, and perform this Agreement and any Related Agreements to which it is a party.
The execution, delivery, and performance by such Buyer of this Agreement and such

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Related
Agreements and the consummation by such Buyer of the transactions contemplated hereby and thereby
have been duly authorized by all necessary corporate or limited partnership action of such Buyer,
and no other action on the part of such Buyer, its Affiliates or any shareholder or partner of such
Buyer is necessary to authorize such execution, delivery and performance. This Agreement has been
duly executed and delivered by such Buyer and constitutes, and each such Related Agreement executed
or to be executed by such Buyer has been, or when executed will be, duly executed and delivered by
such Buyer and constitutes, or when executed and delivered will constitute, a valid and legally
binding obligation of such Buyer, enforceable against such Buyer in accordance with their terms,
except that such enforceability may be limited by (i) applicable bankruptcy, insolvency,
reorganization, moratorium, and similar laws affecting creditors’ rights generally and (ii)
equitable principles which may limit the availability of certain equitable remedies (such as
specific performance) in certain instances.

     5.3 No Conflict. The execution, delivery and performance of this Agreement and
the Related Agreements by such Buyer and the consummation by such Buyer of the transactions
contemplated hereby or thereby do not and will not (a) violate or breach the certificate of
incorporation or by-laws of (or other organizational documents) of such Buyer, (b) violate or
breach any Applicable Law binding upon such Buyer, or (c) violate or result in any breach of, or
constitute a default (or event which with the giving of notice or lapse of time, or both, would
become a default) under, or give to others any rights of termination, amendment, acceleration or
cancellation of, or result in the creation of any Encumbrance on any of the assets or properties of
such Buyer under, any note, bond, mortgage, indenture, contract, agreement, lease, license, permit,
franchise or other instrument relating to such assets or properties to which such Buyer is a party
or by which any of such assets or properties is bound or affected, except in the case of clauses
(b) and (c) as would not, individually or in the aggregate, reasonably be expected to materially
impede or delay such Buyer’s ability to perform its obligations under this Agreement or to
consummate the transactions contemplated hereby.

     5.4 Consents, Approvals, and Licenses. No consent, approval, authorization,
license, order, or Permit of, or declaration, filing, or registration with, or notification to, any
Governmental Entity, or any other Person, is required to be made or obtained by such Buyer or any
of its Affiliates in connection with the execution, delivery, and performance of this Agreement and
the Related Agreements and the consummation of the transactions contemplated hereby or thereby,
except (a) as may be necessary as a result of any facts or circumstances relating solely to Seller,
or (b) where the failure to obtain such consent, approval, authorization, license, order, or
Permit, or to make such declaration, filing, registration or notification would not, individually
or in the aggregate, reasonably be expected to materially impede or delay such Buyer’s ability to
perform its obligations under this Agreement or to consummate the transactions contemplated hereby.

     5.5 Investment Intent; Investment Experience; Restricted Securities. Such Buyer
is acquiring the GLGTCO Shares or GLGTLP GP Interest, as the case may be, for its own account for
investment and not with a view to, or for sale or other disposition in connection with, any
distribution of all or any part thereof. In acquiring the Purchased Interests it is acquiring,
such Buyer is not offering or selling, and will not offer or sell, for Seller in connection with
any

Purchase
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distribution of such Purchased Interests, and such Buyer does not have a participation and will
not participate in any such undertaking or in any underwriting of such an undertaking except in
compliance with applicable federal and state securities laws. Such Buyer acknowledges that it is
able to understand and appreciate the businesses conducted by the Acquired Companies, can bear the
economic risk of its investment in the Purchased Interests it is acquiring, 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 such Purchased Interests. Such Buyer is an “accredited investor” as such
term is defined in Regulation D under the Securities Act. Such Buyer understands that the
Purchased Interests it is acquiring will not have been registered under the Securities Act or any
applicable state securities laws, that such Purchased Interests will be characterized as
“restricted securities” under federal securities laws and that under such laws and applicable
regulations such Purchased Interests cannot be sold or otherwise disposed of without registration
under the Securities Act or an exemption therefrom.

     5.6 Legal Proceedings. There are no Proceedings pending against such Buyer or its
Affiliates or, to the knowledge of such Buyer, threatened against such Buyer or its Affiliates
seeking to restrain, prohibit, or obtain damages or other relief in connection with this Agreement
or the transactions contemplated hereby.

     5.7 Brokerage Fees. Neither such Buyer nor any of its Affiliates has retained any
financial advisor, broker, agent, or finder or paid or agreed to pay any financial advisor, broker,
agent, or finder on account of this Agreement or the transactions contemplated hereby for which
Seller or its Affiliates will have any responsibility or liability.

     5.8 Available Funds. At the Closing, (i) LP Buyer will have sufficient cash or
other sources of immediately available funds to enable it to pay the full LP Base Purchase Price,
as adjusted by the LP Adjustment Amount and the LP Interest Adjustment, and (ii) Corp Buyer will
have sufficient cash or other sources of immediately available funds to enable it to pay the full
Corp Base Purchase Price, as adjusted by the Corp Adjustment Amount and the Corp Interest
Adjustment.

     5.9 Ownership by Corp Buyer. Except for the Purchased Interests and the equity
interests owned by Affiliates of Corp Buyer as set forth on Schedule 5.9, Corp Buyer
represents and warrants that there are outstanding (i) to Corp Buyer’s knowledge, no shares of
capital stock or other equity securities of any Acquired Company, (ii) to Corp Buyer’s knowledge,
no securities of any Acquired Company convertible into or exchangeable for shares of capital stock
or other equity securities of any Acquired Company, (iii) no options or other rights to acquire
from the Affiliates of Corp Buyer listed on Schedule 5.9 or, to Corp Buyer’s knowledge, any
Acquired Company, and no obligation of the Affiliates of Corp Buyer listed on Schedule 5.9
or, to Corp Buyer’s knowledge, any Acquired Company to issue or sell, any shares of capital stock
or other equity securities, and (iv) to Corp Buyer’s knowledge, no equity equivalent, interests in
the ownership or earnings, or other similar rights of or with respect to any Acquired Company or
any securities convertible into or exchangeable for such capital stock or equity securities. There
are no outstanding obligations of the Affiliates of Corp Buyer listed on Schedule 5.9 or,
to Corp Buyer’s knowledge, any Acquired Company to repurchase, redeem, or otherwise acquire any of
the foregoing shares, securities, options, equity equivalents, interests, or rights.

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     5.10
Independent Investigation. Each Buyer hereby acknowledges and affirms that
it has completed its own independent investigation, analysis, and evaluation of the Acquired
Companies, that it has made all such reviews and inspections of the businesses, assets, results of
operations, condition (financial or otherwise), liabilities, and prospects of the Acquired
Companies as it has deemed necessary or appropriate, and that in making its decision to enter into
this Agreement and to consummate the transactions contemplated hereby it has relied solely on (i)
its own independent investigation, analysis, and evaluation of such matters and the Acquired
Companies and (ii) the
representations and warranties expressly set forth in this Agreement and in the Related
Agreements.

Article 6

CONDUCT OF ACQUIRED COMPANIES PENDING CLOSING

     Seller hereby covenants and agrees with each Buyer as follows:

     6.1 Conduct and Preservation of the Acquired Companies. Except as provided in
this Agreement and Schedule 6.2 or as consented to in writing by Buyers (which consent will
not be unreasonably withheld, delayed, or conditioned), during the period from the date hereof to
the Closing, Seller shall (i) use commercially reasonable efforts to cause each of the Acquired
Companies to conduct its operations according to its ordinary course of business consistent with
past practice and in compliance with all Applicable Laws, (ii) use commercially reasonable efforts
to cause each Acquired Company in all material respects to preserve, maintain, and protect its
assets, rights, and properties, (iii) keep the insurance policies listed in Schedule
4.16(ii) in effect through the Closing, and (iv) use commercially reasonable efforts to cause
each Acquired Company to comply in all material respects with the licenses and terms and conditions
of service provided by FERC or any other permitting or regulatory agency known to Seller.
Notwithstanding the foregoing, Seller and the Acquired Companies shall not be required to make any
payments or enter into or amend any contractual agreements, arrangements, or understandings to
satisfy the foregoing obligation unless such payment or other action is required or consistent with
past practice.

     6.2 Restrictions on Certain Actions. Without limiting the generality of
Section 6.1, and except as set forth in Schedule 6.2, during the period between the
date hereof and the Closing, Seller shall use commercially reasonable efforts to not permit any
Acquired Company, without the prior written consent of Buyers, which consent shall not be
unreasonably withheld, delayed, or conditioned, to:

     (a) amend its charter or bylaws or other governing instruments;

     (b) (i) issue, sell, or deliver (whether through the issuance or granting of options,
warrants, commitments, subscriptions, rights to purchase, or otherwise) any shares of its
capital stock of any class or any other securities or equity equivalents; or (ii) amend any
of the terms of any such securities outstanding as of the date hereof;

     (c) (i) split, combine, or reclassify any shares of its capital stock or other equity
interests; (ii) declare, set aside or pay any dividend or other distribution (whether

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in
cash, stock or property or any combination thereof) in respect of its capital stock or other
equity interests; (iii) repurchase, redeem or otherwise acquire any of its securities; or
(iv) adopt a plan of complete or partial liquidation or resolutions providing for or
authorizing a liquidation, dissolution, merger, consolidation, restructuring,
recapitalization, or other reorganization of any Acquired Company;

     (d) except in the ordinary course of business consistent with past practice, create,
incur, guarantee, or assume any indebtedness for borrowed money or otherwise become liable
or responsible for the obligations of any other Person;

     (e) except for normal increases in the ordinary course of business consistent with past
practice that, in the aggregate, do not result in a material increase in benefits or
compensation expense to the Acquired Companies, taken as a whole, increase the benefits or
compensation to any director, officer, or employee of the Acquired Companies; (ii) pay to
any director, officer, or employee of the Acquired Companies any benefit not required by any
employee benefit agreement, trust, plan, fund, or other arrangement as in effect on the date
hereof; or (iii) hire, terminate without cause, or transfer any Employee;

     (f) acquire, sell, lease, transfer, or otherwise dispose of, directly or indirectly,
any assets outside the ordinary course of business consistent with past practice or any
assets having a value of $5,000,000 or more in the aggregate;

     (g) acquire (by merger, consolidation, or acquisition of stock or assets, or otherwise)
any corporation, partnership, or other business organization or division thereof;

     (h) make any capital expenditure or expenditures in excess of the existing capital
expenditures budget approved by the management committee of GLGTLP, except for reasonable
expenditures made by any Acquired Company in connection with any emergency or other force
majeure events affecting such Acquired Company;

     (i) pay, discharge, or satisfy any material claims, liabilities, or obligations
(whether accrued, absolute, contingent, unliquidated or otherwise, and whether asserted or
unasserted), other than the payment, discharge or satisfaction in the ordinary course of
business consistent with past practice, or in accordance with their terms, of liabilities
reflected or reserved against in the GLGTCO Financial Statements or GLGTLP Financial
Statements or incurred since the Balance Sheet Date in the ordinary course of business
consistent with past practice;

     (j) amend, modify, or change in any material respect any Scheduled Contract, or enter
into any new agreement or contract that would constitute a Scheduled Contract, except to the
extent Seller reasonably believes that the Acquired Companies are required to amend, modify,
or change any Scheduled Contract, or enter into any new agreement or contract that would
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under the Scheduled
Contracts existing as of the date hereof or to comply with Applicable Laws, including a
regulation of or tariff filed with FERC or the MPSC;

     (k) change in any material respect any of the accounting principles or practices used
by it, except for any change required by reason of a concurrent change in U.S. GAAP;

     (l) other than filings related to the capital expenditures permitted by Section
6.2(h), make any material filings or submit any material document or material
information to FERC, the MPSC, or any other permitting or regulatory agency; or

     (m) commit or otherwise agree to do any of the foregoing.

Article 7

ADDITIONAL AGREEMENTS

     7.1 Access to Information and Confidentiality.

     (a) Access. Between the date hereof and the Closing, Seller (i) shall give, and
shall use commercially reasonable efforts to cause the Acquired Companies to give, each
Buyer and its authorized representatives reasonable access, during regular business hours
and upon reasonable advance Notice, to such employees, plants, pipelines, and other
facilities, and such books and records, of the Acquired Companies and Seller, as are
reasonably necessary to allow each Buyer and its authorized representatives to make such
inspections as they may reasonably require to verify the accuracy of any representation or
warranty contained in this Agreement or as they may reasonably require for the transition of
the ownership interests in the Acquired Companies from Seller to the applicable Buyer and
(ii) shall use commercially reasonable efforts to cause officers of the Acquired Companies
to furnish each Buyer and its authorized representatives with such financial and operating
data and other information with respect to the Acquired Companies as is available to such
officers and as such Buyer may from time to time reasonably request. Neither Buyer shall
have any right of access to, and Seller shall have no obligation to provide to either Buyer,
(1) bids received from others in connection with the transactions contemplated by this
Agreement and information and analysis (including financial analysis) relating to such bids,
or (2) any information the disclosure of which Seller has concluded, based on the advice of
outside legal counsel, is reasonably likely to jeopardize any privilege available to any
Acquired Company or Seller relating to such information or to cause either Seller or any
Acquired Company or any of their Affiliates to breach a confidentiality obligation,
provided that Seller shall use commercially reasonable efforts to obtain a waiver of
any such confidentiality obligations (collectively, the “Excluded Information”).
Each Buyer agrees that if Seller or an Acquired Company inadvertently furnishes to such
Buyer copies of or access to Excluded Information, such Buyer will, upon Seller’s request
promptly return same to Seller or such Acquired Company together with any and all extracts
therefrom or notes pertaining thereto (whether in electronic or other format).

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     (b) Retention by Seller. Subject to the terms of Section 7.2(c), each
Buyer agrees that Seller may retain (i) a copy of all materials made available on the Data
Site, together with a copy of all documents referred to in such materials, (ii) all books
and records prepared in connection with the transactions contemplated by this Agreement,
including bids received from others and information relating to such bids, (iii) copies of
any books and records which may be relevant in connection with the defense of disputes
arising hereunder, and (iv) all consolidating and consolidated financial information and
all other accounting books and records prepared or used in connection with the
preparation of financial statements of Seller or its Affiliates.

     (c) Record Preservation by Each Buyer. Each Buyer agrees that it shall
preserve and keep all books and records relating to the business or operations of the
Acquired Companies on or before the Closing Date in such Buyer’s possession for a period of
at least 7 years from the Closing Date. After such 7-year period, each Buyer may dispose of
any of such books and records unless Seller provides at least 90 calendar days’ prior Notice
to such Buyer that Seller elects, at Seller’s cost and expense, to remove and retain all or
any part of such books and records. Notwithstanding the foregoing, each Buyer agrees that
it shall preserve and keep all books and records of the Acquired Companies in its possession
relating to any investigation instituted by a Governmental Entity or any litigation (whether
or not existing on the Closing Date) if it is reasonably likely that such investigation or
litigation may relate to matters occurring prior to the Closing, without regard to the
7-year period set forth in this Section 7.1(c).

     (d) Cooperation. Each Party agrees that it will cooperate with and make
available to the other Party (and its representatives) during normal business hours, all
books and records, information, and employees (without substantial disruption of employment)
retained and remaining in existence with respect to the Acquired Companies after the Closing
Date which are necessary or useful in connection with (i) any Tax inquiry, audit,
investigation, or dispute, (ii) any litigation or investigation, or (iii) any other matter
requiring any such books and records, information, or employees for any reasonable business
purpose, but Seller shall not be required by this Section 7.1(d) to make available
to each Buyer any information referred to in clause (1) of the first sentence of Section
7.1(a) or clause (ii) of Section 7.1(b), or any of the items referred to in
Section 7.8. The Party requesting any such books and records, information, or
access to such employees shall bear all of the out-of-pocket costs and expenses (including
reasonable attorneys’ fees and reimbursement for the reasonable salaries and employee
benefits for those employees who are made available) reasonably incurred in connection with
providing such books and records, information, or employees. Seller may require certain
financial information relating to the Acquired Companies’ businesses for periods prior to
the Closing Date for the purpose of filing Tax Returns and other governmental reports, and
each Buyer agrees to furnish such information to Seller at Seller’s request and expense.

     7.2 Regulatory and Other Authorizations and Consents.

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     (a) Filings. Each Party shall use all commercially reasonable efforts to
obtain all authorizations, consents, orders, and approvals of, and to give all notices to
and make all filings with, all Governmental Entities and other third parties that may be or
become necessary for its execution and delivery of, and the performance of its obligations
under this Agreement and will cooperate fully with the other Party in promptly seeking to
obtain all such authorizations, consents, orders, and approvals, giving such notices, and
making such filings. Notwithstanding anything in this Agreement to the contrary,
(i) neither Buyer shall be required to enter into or commit to any divestitures,
licenses, hold separate arrangements, consent decrees, undertakings, obligations,
limitations, or any other measures or actions (collectively, “HSR Measures”) related
to or involving any assets, properties, or businesses that any Acquired Company, such Buyer,
or any Affiliate of such Buyer owns, operates, or has the right to acquire, and (ii) Seller
shall not, and shall cause the Acquired Companies not to, enter into or commit to any HSR
Measures related to or involving any assets, properties, or businesses that any Acquired
Company owns, operates, or has the right to acquire.

     (b) Third Party Consents. Each Buyer will use its commercially reasonable
efforts to assist Seller in obtaining any consents of Third Parties necessary or advisable
in connection with the transactions contemplated by this Agreement, including providing to
such Third Parties such financial statements and other publicly available financial
information with respect to such Buyer as such Third Parties may reasonably request.
Nothing in this Section 7.2(b) shall require either Buyer to make any expenditure or
provide any guarantee, indemnity, or financial assurance or other form of security in
connection with obtaining, or seeking to obtain, any consent of a Third Party.

     (c) Confidentiality.

     (i) For 24 months after Closing, except as required by any Applicable Law,
Governmental Entity, or applicable stock exchange rule, Seller shall use
commercially reasonable efforts to cause its Affiliates not to, directly or
indirectly, disclose to any Person or use any information not then in the public
domain or generally known in the industry, in any form, acquired prior to the
Closing Date, and relating to the businesses and operations of the Acquired
Companies (collectively, “Buyer Protected Information”). If, after Closing,
it becomes necessary for Seller or any Affiliate of Seller (other than the Acquired
Companies) to use the Buyer Protected Information that is imbedded with other
information of Seller and its Affiliates in the ordinary course of its business and
operations and such Buyer Protected Information cannot be reasonably separated or
segregated from such other information, then such Buyer Protected Information may be
used by Seller or its Affiliate in the ordinary course of its business and
operations).

     (ii) For 24 months after Closing, except as required by any Applicable Law,
Governmental Entity, or applicable stock exchange rule, each Buyer shall not, and
shall use commercially reasonable efforts to cause its Affiliates (including the
Acquired Companies) not to, directly or indirectly, disclose to any

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Person or use
any information not then in the public domain or generally known in the industry, in
any form, acquired prior to the Closing Date and relating to the businesses and
operations of Seller and its Affiliates (other than the Acquired Companies)
(collectively, “Seller Protected Information”). If, after Closing, it
becomes necessary for a Buyer or any Affiliate of a Buyer to use Seller Protected
Information that is imbedded with other information of a Buyer and its Affiliates in
the ordinary course of its business and operations and such Seller Protected
Information cannot be reasonably separated or segregated from such other
information, then such Seller Protected Information may be used by a Buyer or
its Affiliate in the ordinary course of its business and operations.

     (iii) Upon a Buyer’s request, Seller shall use commercially reasonable efforts
to enforce, on behalf of and for the benefit of the Acquired Companies, the terms of
any confidentiality or standstill agreements with any Third Party relating to the
Acquired Companies and the transactions contemplated hereby.

     (iv) The Parties acknowledge that TransCanada PipeLines Limited previously
executed the Confidentiality Agreement. The Confidentiality Agreement shall
continue in full force and effect until the Closing, at which time the
Confidentiality Agreement shall automatically terminate and be of no further force
or effect with respect to either Buyer and information regarding the Acquired
Companies.

     (v) Notwithstanding anything to the contrary set forth herein or in any other
written or oral understanding or agreement to which the Parties are parties or by
which they are bound (including the Confidentiality Agreement), each Party
authorizes each other Party (and the representatives of each other Party) to
disclose to any and all Persons, without limitation of any kind, the tax treatment
and tax structure of the transactions contemplated by this Agreement, and all
materials (including tax opinions and other tax analyses) provided to such other
Party by such authorizing Party (and its representatives); provided,
however, that nothing herein shall be construed as a waiver of any
applicable attorney-client privilege or privilege in respect of a confidential
communication with a federally authorized tax practitioner under Section 7525 of the
Code, or as requiring any Person to waive such a privilege. For this purpose, “tax
treatment” means U.S. federal income tax treatment, and “tax structure” is limited
to any facts that may be relevant to that treatment.

     (d) Transfer. If the transfer of any instrument, contract, license, lease,
permit, or other document to a Buyer hereunder shall require the consent of any party
thereto other than Seller, then this Agreement shall not constitute an agreement to assign
the same, and such item shall not be assigned to or assumed by such Buyer, if an actual or
attempted assignment thereof would constitute a breach thereof or default thereunder. In
such case, Seller and each Buyer shall cooperate and each shall use commercially reasonable
efforts to obtain such consents to the extent required of such other parties and, if and
when any such consents are obtained, to transfer the applicable instrument, contract,
license, lease, Permit, or other document. If any such consent cannot be obtained, Seller
shall cooperate in any reasonable arrangement designed to obtain for each Buyer all
benefits, privileges, obligations and privileges of the applicable instrument,

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contract,
license, lease, Permit, or document, including possession, use, risk of loss, potential for
gain and dominion, control and demand. Each Buyer agrees that (i) if any of the Excluded
Assets require the consent of any party thereto other than an Acquired Company, Seller, or
any of their respective Affiliates and such consent is not received prior to Closing, such
Buyer shall cooperate with Seller to obtain such consents to the extent required of such
other parties and, if and when any such consents are
obtained, to transfer the applicable instrument, contract, license, lease, permit, or
other document, and (ii) if any such consent cannot be obtained, such Buyer shall cooperate
in any reasonable arrangement (which shall include indemnification of the Buyer Indemnitees
from and against any and all liabilities or other obligations related thereto) designed to
obtain for Seller all benefits, privileges, obligations and privileges of the applicable
instrument, contract, license, lease, permit, or document, including possession, use, risk
of loss, potential for gain and dominion, control and demand; provided,
however, that Seller shall bear all out-of-pocket costs and expenses (including
reasonable attorneys’ fees incurred in connection with such Buyer’s cooperation in such
matters.

     7.3 Employees and Employee Plans.

     (a) Employees. To the extent available to Seller, within five business days
after the execution of this Agreement, Seller shall deliver to Buyers a list of all of the
Persons who to Seller’s knowledge, are employees of the Acquired Companies that includes the
job title and salary of each such employee.

     (b) Withdrawal from Plans. As of the Closing, the Acquired Companies shall
cease to participate in the El Paso Corporation Retirement Savings Plan (the “Savings
Plan”), the El Paso Corporation Cash Balance Plan (the “Cash Balance Plan”),
and in all other Employee Plans which are not sponsored or maintained by an Acquired
Company. The Parties agree that El Paso and its Affiliates will provide assistance to Buyers
to facilitate the transfer of payroll and benefits administration for the Employees of Buyer
after the Closing. Seller shall retain all obligations and liabilities with respect to any
benefits earned by the Employees under any Acquired Company Plan which is not an Acquired
Company Sponsored Plan.

     (c) Cessation of Plan Administration. El Paso and its Affiliates shall not
provide administrative services or payroll services on behalf of any of the Acquired Company
Plans in respect of the period following the Closing; provided, however, the Parties agree
that El Paso and its Affiliates will provide assistance to Buyers to facilitate the transfer
of payroll and benefits administration for the Employees of Buyer after the Closing.

     (d) Retirement Savings Plan. Prior to the Closing, Seller shall take all
action necessary such that, immediately prior to the Closing, all employees of the Acquired
Companies who participate in the Savings Plan shall become fully vested in any unvested

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portion their accounts under the Savings Plan. To the extent of any distributions under the
Savings Plan, Buyers shall cause a 401(k) plan that is sponsored by Buyers or an Affiliate
of Buyers to accept the rollover of any Savings Plan distribution, in cash or a cash
equivalent (e.g., check or wire transfer in immediately available funds), including any
outstanding Savings Plan loans.

     (e) Cash Balance Plan. Prior to the Closing, Seller shall take all action
necessary such that, immediately prior to the Closing, all employees of the Acquired
Companies who participate in the Cash Balance Plan shall (i) become fully vested in any
unvested portion of their Cash Balance Plan accrued benefit and (ii) be entitled to a
distribution from the Cash Balance Plan as provided under the terms of the Cash Balance Plan
as soon as practicable after the Closing.

     (f) Multiemployer Plan. To the extent that any Acquired Company becomes
entitled after Closing to any refund, reimbursement, or return of any multiemployer plan
contributions relating to any such plan within the El Paso control group under Section 414
of the Code covering any periods prior to the Closing, Buyers or an Affiliate shall promptly
reimburse such amounts to Seller. To the extent the Acquired Companies, Buyers or Buyers’
Affiliates become liable for any withdrawal liability in connection with a multiemployer
plan relating to any such plan within the El Paso control group under Section 414 of the
Code with respect to which the Acquired Companies made contributions prior to the Closing,
Seller shall indemnify Buyers for such liability.

     (g) Records and Documentation. To the extent the following are available to
Seller, as soon as practicable after the date hereof, Seller and its Affiliates shall
provide to Buyers general job descriptions by job band as may apply to any of the employees
of the Acquired Companies. To the extent the following are available to Seller, as soon as
practicable after the Closing, Seller and its Affiliates shall provide to Buyers all
employee records of the employees of the Acquired Companies, including, but not limited to,
documentation required under the U.S. Department of Transportation regulations regarding
drug and alcohol testing.

     (h) Cooperation. Each of the Parties shall use its commercially reasonable
best efforts to cooperate in the processes described in this Section 7.3.

     (i) Solicitation. For a period of 12 months after the Closing Date, each Buyer
and its Affiliates shall not, without the prior written consent of Seller, directly solicit,
encourage, or induce any employee of Seller or its Affiliates (other than the Acquired
Companies) to become an employee, contractor, or consultant of such Buyer or its Affiliates.
For a period of 12 months after the Closing Date, Seller and its Affiliates shall not,
without the prior written consent of each Buyer, directly solicit, encourage, or induce any
employee of any of the Acquired Companies to become an employee, contractor, or consultant
of Seller or its Affiliates. The restrictions of this Section 7.3(i) shall not prohibit
general, non-targeted solicitations of employees by either Buyer or Seller or their
respective Affiliates.

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     7.4 Public Announcements. The initial press release or releases to be issued in
connection with the execution of this Agreement shall be mutually agreed upon by the Parties prior
to the issuance thereof. Prior to the 5th business day after the Closing, Buyers and Seller shall
consult with each other before they or any of their Affiliates issue any other press release or
otherwise make any other public statement with respect to this Agreement or the transactions
contemplated hereby. Buyers and Seller and their Affiliates shall not issue any such other press
release or make any such other
public statement prior to any such consultation (but no approval thereof shall be required),
except as may be required by Applicable Law or stock exchange rule.

     7.5 Amendment of Schedules. Each Party agrees that, with respect to the
representations and warranties of such Party contained in Articles 4 and 5 of this
Agreement, such Party shall have the continuing obligation until the Closing to correct, supplement
or amend promptly the Schedules to such Party’s Disclosure Letter with respect to any matter
hereafter arising or discovered which, if existing or known at the date of this Agreement, would
have been required to be set forth or described in the Schedules. Any such correction, supplement,
or amendment shall be delivered to the other Party no later than three business days prior to the
Closing Date. For all purposes of this Agreement, including for purposes of determining whether
the conditions set forth in Articles 8 and 9 have been fulfilled, the Schedules to
a Party’s Disclosure Letter shall be deemed to include only that information contained therein on
the date of this Agreement and shall be deemed to exclude all information contained in any
supplement or amendment thereto, but if the Closing shall occur, then all matters disclosed
pursuant to any such supplement or amendment at or prior to the Closing shall be waived and no
Party shall be entitled to make a claim thereon under the terms of this Agreement or otherwise.

     7.6 Fees and Expenses. Except as otherwise provided in this Agreement, all fees
and expenses, including fees and expenses of counsel, financial advisors, and accountants incurred
in connection with this Agreement and the transactions contemplated hereby shall be paid by the
Party incurring such fee or expense, whether or not Closing occurs. Buyers shall be obligated to
pay any and all costs of any audit of the Acquired Companies as may be required to enable Buyers to
complete and file any filing by Buyers or an Affiliate of a Buyer with the Securities and Exchange
Commission.

     7.7 Transfer Taxes. All sales, transfer, filing, recordation, registration, and
similar Taxes and fees arising from or associated with the transactions contemplated hereunder,
whether levied on Buyers or Seller, shall be borne equally by Buyers and Seller, and Buyers and
Seller shall cooperate in filing all necessary documentation with respect to, and each make their
respective payments of, such Taxes and fees on a timely basis and if required by Applicable Law,
each Buyer and Seller shall and shall cause their respective Affiliates to join the execution of
any such documentation. For the avoidance of doubt, the provisions of this Section 7.7 do
not apply to any Taxes and fees arising from or associated with any transfer of the Excluded Assets
described in Section 7.8.

     7.8 Excluded Assets. Notwithstanding anything to the contrary in this Agreement,
the transactions contemplated by this Agreement exclude, the following (collectively, the
“Excluded Assets”):

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          (a) the Excluded Information; and

          (b) the El Paso Marks.

     Notwithstanding anything to the contrary provided elsewhere in this Agreement, Seller’s
representations and warranties in Article 4 shall not apply to any of the Excluded Assets.

     7.9 [Intentionally Omitted].

     7.10 Use of El Paso Marks. El Paso Marks may appear on some of the assets of the
Acquired Companies, including on signs throughout the real property of the Acquired Companies, and
on supplies, materials, stationery, brochures, manuals, and similar consumable items of the
Acquired Companies. Each Buyer acknowledges and agrees that other than as set forth in this
Section 7.10, it obtains no right, title, interest, license, or any other right whatsoever
to use the El Paso Marks. In furtherance thereof, each Buyer shall use commercially reasonable
efforts to cause the Acquired Companies (a) within six months after the Closing Date (the
“Transition Period”), to discontinue use of El Paso Marks and remove the El Paso Marks from
the assets of the Acquired Companies, including signs on the real and personal property of the
Acquired Companies, and, upon Seller’s request use commercially reasonable efforts to provide
written confirmation thereof to Seller. Each Buyer agrees never to challenge Seller’s (or its
Affiliates) ownership of El Paso Marks or any application for registration thereof or any
registration thereof or any rights of Seller or its Affiliates therein as a result of its ownership
of the Acquired Companies. Neither Buyer will do any business or offer any goods or services under
El Paso Marks. After the expiration of the Transition Period, neither Buyer will send, or cause to
be sent, any correspondence or other materials to any Person on any stationery that contains any El
Paso Marks or otherwise operate the Acquired Companies in any manner which would be reasonably
likely to cause confusion, mistake or deception that such Buyer is associated or affiliated with
Seller’s or its Affiliates’ license to use the El Paso Marks.

     7.11 Insurance. Each Buyer acknowledges and agrees that, following the Closing,
the insurance policies of the Affiliates of Seller (other than the Acquired Companies) maintained
for Seller and its assets and operations (other than the Acquired Company Insurance Policies) shall
be terminated or modified to exclude coverage of all or any portion of Seller, and, as a result,
such Buyer will need to at or before Closing obtain at its sole cost and expense replacement
insurance, including insurance required by any Third Party to be maintained by Seller. Each Buyer
further acknowledges and agrees that such Buyer may need to provide to certain Governmental
Entities and Third Parties evidence of such replacement or substitute insurance coverage for the
continued operations of the businesses of Seller following the Closing. Notwithstanding the
foregoing, if any claims are made or Losses occur prior to the Closing Date that relate solely to
the business activities of the Acquired Companies and such claims, or the claims associated with
such Losses, may be made after the Closing against any of the insurance policies listed on
Schedule 4.16(ii) that have been underwritten by Third Parties, then Seller shall use
commercially reasonable efforts so that the Acquired Companies can file, notice, and otherwise
continue to pursue these claims under the terms of such Third Party insurance policies. If
Seller or any of its Affiliates collect any insurance proceeds (excluding deductibles, self
retentions, retroactive premiums (but only to the extent related to the recovery for such claims),

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and similar items, the cost of which shall be for Buyers’ account) with respect to such claims
after the Closing, Seller shall promptly remit such proceeds to Buyers.

     7.12 Guaranties. Concurrently with the execution and delivery of this Agreement
by Buyers and Seller, Buyer Guarantors have executed and delivered to Seller the Buyers Guaranty
and Seller Guarantor has executed and delivered to Buyers the Seller Guaranty.

     7.13 Limitations.

     (a) No Reliance. Each Buyer covenants that it has reviewed and had access to
all documents, records, and information which it has desired to review in connection with
its decision to enter into this Agreement, and to purchase the Acquired Companies. In
deciding to enter into this Agreement, and to consummate the transactions contemplated
hereby, each Buyer covenants that it has relied solely upon its own knowledge,
investigation, and analysis (and that of its representatives) and not on any disclosure or
representation made by, or any duty to disclose on the part of, Seller, its Affiliates, or
any of their representatives, other than the representations and warranties of Seller
expressly set forth herein and in the Related Agreements.

     (b) Assets. Notwithstanding anything contained to the contrary in any other
provision of this Agreement, it is the explicit intent of each Party that Seller and its
Affiliates are not making any representation or warranty whatsoever, express, implied, at
common law, statutory or otherwise, except for the representations or warranties given in
this Agreement and the Related Agreements, and it is understood that Buyers, with such
exceptions, take the businesses and assets of the Acquired Companies “as is” and “where is.”
Without limiting the generality of the immediately preceding sentence, except as provided
in this Agreement and the Related Agreements, Seller hereby expressly disclaims and negates
any representation or warranty, express or implied, at common law, statutory, or otherwise,
relating to (i) the condition of the businesses and assets of the Acquired Companies
(including any implied or express warranty of merchantability or fitness for a particular
purpose, or of conformity to models or samples of materials, or the presence or absence of
any hazardous materials in or on, or disposed or discharged from, the assets of the Acquired
Companies) or (ii) any infringement by the Acquired Companies of any patent or proprietary
right of any third party. Each Buyer has agreed not to rely on any representation made by
Seller with respect to the condition, quality, or state of the Acquired Companies or their
assets except for those in this Agreement and the Related Agreements, but rather, as a
significant portion of the consideration given to Seller for this purchase
and sale, has agreed to rely solely and exclusively upon its own evaluation of the
Acquired Companies, and the representations, warranties, covenants and agreements of Sellers
in this Agreement and the Related Agreements.

Article 8

CONDITIONS TO OBLIGATIONS OF SELLER

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     The obligations of Seller to consummate the transactions contemplated by this Agreement shall
be subject to the fulfillment or waiver by Seller on or prior to the Closing Date of each of the
following conditions:

     8.1 Representations and Warranties True. (i) All the representations and
warranties of Buyers contained in this Agreement and in any agreement, instrument or document
delivered by Buyers pursuant hereto or in connection herewith on or prior to the Closing Date that
are qualified as to materiality and the representations and warranties in Section 5.2 shall
be true and correct on and as of the date hereof and on and as of the Closing Date as if made on
such date, and (ii) each of the representations and warranties of Buyers herein or therein that is
not so qualified as to materiality (other than the representations and warranties in Section
5.2) shall be true and correct in all material respects on and as of the date hereof and on and
as of Closing Date as if made on and as of such date, in each such case except to the extent that
any such representation or warranty is made as of a specified date, in which case such
representation or warranty shall have been true and correct as set forth above as of such specified
date.

     8.2 Covenants and Agreements Performed. Buyers shall have performed and complied
with in all material respects all covenants and agreements required by this Agreement to be
performed or complied with by them on or prior to the Closing Date, and all deliveries contemplated
by Section 3.3 shall have been made.

     8.3 Legal Proceedings. No preliminary or permanent injunction or other order,
decree, or ruling issued by a Governmental Entity, and no Applicable Law promulgated or enacted by
a Governmental Entity, shall be pending, threatened or in effect which restrains, enjoins,
prohibits, or otherwise makes illegal the consummation of the transactions contemplated hereby.

     8.4 ANR Pipeline Closing. The closing of the transactions contemplated under that
certain Purchase and Sale Agreement, dated as of December 22, 2006 (the “Pipeline/Storage
PSA”), among El Paso Corporation, El Paso CNG Company, L.L.C. and TransCanada American
Investments Ltd. shall have occurred.

Article 9

CONDITIONS TO OBLIGATIONS OF BUYERS

     The obligations of Buyers to consummate the transactions contemplated by this Agreement shall
be subject to the fulfillment or waiver by Buyers on or prior to the Closing Date of each of the
following conditions:

     9.1 Representations and Warranties True. (i) All the representations and
warranties of Seller contained in this Agreement and in any agreement, instrument or document
delivered by Seller pursuant hereto or in connection herewith on or prior to the Closing Date that
are qualified as to materiality and the representations and warranties in Sections 4.2(a)
through 4.2(c) and 4.4 shall be true and correct on and as of the date hereof and
on and as of the Closing Date as if made on such date, and (ii) each of the representations and
warranties of Seller herein or therein that is not so qualified as to materiality (other than the
representations in Sections

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4.2(a) through 4.2(c) and 4.4) shall be true
and correct in all material respects on and as of the date hereof and on and as of the Closing Date
as if made on and as of such date, in each such case except to the extent that any such
representation or warranty is made as of a specified date, in which case such representation or
warranty shall have been true and correct as set forth above as of such specified date.

     9.2 Covenants and Agreements Performed. Seller shall have performed and complied
in all material respects with all covenants and agreements required by this Agreement to be
performed or complied with by it on or prior to the Closing Date, and all deliveries contemplated
by Section 3.2 shall have been made.

     9.3 Legal Proceedings. No preliminary or permanent injunction or other order,
decree or ruling issued by a Governmental Entity, and no Applicable Law promulgated or enacted by a
Governmental Entity, shall be pending, threatened or in effect which restrains, enjoins, prohibits,
or otherwise makes illegal the consummation of the transactions contemplated hereby.

     9.4 ANR Pipeline Closing. The closing of the transactions contemplated under the
Pipeline/Storage PSA shall have occurred.

Article 10

TERMINATION, AMENDMENT, AND WAIVER

     10.1 Termination. This Agreement may be terminated and the transactions
contemplated hereby abandoned at any time prior to the Closing in the following manner:

     (a) by mutual written consent of Seller and Buyers;

     (b) by either Seller or Buyers, if any Governmental Entity with jurisdiction over such
matters shall have issued an order or injunction restraining, enjoining, or otherwise
prohibiting the sale of the Purchased Interests hereunder and such order, decree, ruling, or
other action shall have become final and unappealable, but the right to terminate this
Agreement under this Section 10.1(b) shall not be available to a Party whose failure
to fulfill any obligation under Section 7.2(a), shall have been the cause of, or
shall have resulted in, the failure of the Closing to occur prior to such time;

     (c) by either Seller or Buyers, if the Closing shall not have occurred on or before
June 22, 2007, but the right to terminate this Agreement under this Section 10.1(c)
shall not be available to a Party whose failure to fulfill any obligation under this
Agreement shall have been the cause of, or shall have resulted in, the failure of the
Closing to occur prior to such date;

     (d) by Buyers, if (i) Seller fails to comply with any of its covenants or agreements
contained herein, or breaches its representations and warranties contained herein, and, if
curable, does not cure or commence and diligently pursue remedial action to cure such
failure to comply or breach within 30 days after receipt by Seller from Buyers of Notice of
such failure to comply or breach, and (ii) such failure to comply or

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breach would result in
a failure to satisfy the conditions to Closing set forth in Section 9.1 or
9.2;

(e) by Seller, if (i) Buyers fail to comply with any of their covenants or agreements
contained herein, or breach their representations and warranties contained herein, and, if
curable, do not cure or commence and diligently pursue remedial action to cure such failure
to comply or breach within 30 days after receipt by Buyers from Seller of Notice of such
failure to comply or breach, and (ii) such failure to comply or breach would result in a
failure to satisfy the conditions to Closing set forth in Section 8.1 or
8.2; or

(f) by Seller or Buyers if the Pipeline/Storage PSA has been terminated in accordance
with its terms.

     10.2 Effect of Termination. If a Party terminates this Agreement under
Section 10.1, then such Party shall promptly give Notice to the other Party specifying the
provision hereof pursuant to which such termination is made, and this Agreement shall become void
and of no further force or effect, except that the agreements contained in this Article 10,
and the provisions of Section 7.4 and 7.6 shall survive the termination hereof.
Nothing contained in this Section 10.2 shall relieve either Party from liability for
damages actually incurred as a result of any breach of this Agreement.

     10.3 Amendment. This Agreement may not be amended except by an instrument in
writing signed by or on behalf of each Party hereto.

     10.4 Waiver. Seller, on the one hand, and Buyers, on the other hand, may (i)
waive any inaccuracies in the representations and warranties of the other contained herein or in
any document, certificate, or writing delivered pursuant hereto or (ii) waive compliance by the
other with any of the other’s agreements or fulfillment of any conditions to its own obligations
contained herein. Any agreement on the part of a Party to any such waiver shall be valid only if
set forth in an instrument in writing signed by or on behalf of such Party. No failure or delay by
a Party in exercising any right, power, or privilege hereunder shall operate as a waiver thereof
nor shall any single or partial exercise thereof preclude any other or further exercise thereof or
the exercise of any other right, power, or privilege.

Article 11

TAX MATTERS

     11.1 Preparation of Tax Returns and Payment of Taxes.

     (a) Manner of Preparation. Any Tax Return which includes Tax items for which
Seller shall be responsible pursuant to the provisions of this Section 11.1 shall be
prepared in a manner consistent with practices followed in prior years with respect to
similar Tax Returns, except for changes required by Applicable Law or changes in facts or
circumstances. Section 11.1(b), Section 11.1(c), and Section
11.1(d) shall govern the allocation of responsibility between Buyers and Seller for
certain Tax matters related to the Acquired Companies following the Closing Date.

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     (b) Periods through Closing. With respect to any Tax Return of any Acquired
Company covering a taxable period ending on or before the Closing Date that is required to
be filed after the Closing Date, Seller and Buyers shall cooperate to cause such Tax Return
to be prepared and timely filed and shall cause to be included in such Tax Return all items
required to be included therein, including any allocation of partnership income of GLGTLP up
to the Closing Date using the methodology described in Section 11.1(c). With
respect to any such Tax Return of the Acquired Companies, except for Post-Effective Date
Taxes for which Buyers shall be responsible pursuant to Section 11.1(d), Seller
shall be responsible for and timely pay to Buyers its pro rata share, according to Seller’s
ownership interest in the relevant Acquired Company with respect to the period for which the
Taxes are due, all Taxes of each of the Acquired Companies due with respect to the periods
covered by such Tax Returns but only to the extent of the Seller’s ultimate ownership
interest in the Acquired Company (as of Closing) to which any such Taxes relate.

     (c) Straddle Periods. With respect to any Straddle Return of the Acquired
Companies covering a Straddle Period, Buyers shall cause such Straddle Return to be prepared
and shall cause to be included in such Straddle Return all Tax items required to be included
therein. In the case of a Straddle Period, any Taxes allocable to the pre-Closing portion
of the Straddle Period (“Pre-Closing Taxes”) that are based on or related to income,
gains or receipts will be computed (by an interim closing of the books) as if such taxable
period ended as of the Closing Date and any other Pre-Closing Taxes
will be computed to be the amount of such Taxes for the entire Straddle Period
multiplied by a fraction, the numerator of which is the number of days in the Straddle
Period ending on the Closing Date and the denominator of which is the number of days in the
entire Straddle Period. Not later than 30 calendar days prior to the due date of each
Straddle Return, Buyers shall deliver a copy of such Straddle Return to Seller for its
review, and Buyers shall make all reasonable changes to such Straddle Return requested by
Seller not later than seven calendar days prior to the due date of such Straddle Return.
Except for Post-Effective Date Taxes for which Buyers shall be responsible pursuant to
Section 11.1(d), Seller shall be responsible for its pro rata share, according to
Seller’s ownership interest in the relevant Acquired Company, of any Pre-Closing Taxes for
Straddle Periods with respect to an Acquired Company, but only to the extent of Seller’s
ultimate ownership interest in the Acquired Company (as of Closing) to which such Taxes
relate with respect to the period for which the Taxes are due, and will pay such amounts to
Buyers no later than seven calendar days after the filing of the Straddle Return with
respect to which such pre-Closing Taxes related.

     (d) Post-Effective Date Taxes. Notwithstanding any other provision of this
Agreement including any provision of this Article 11, Buyers shall be responsible
for and pay to Seller any Taxes, other than Income Taxes, with respect to the Acquired
Companies that are allocable to, attributable to, or accrue for the period beginning on the
Effective Date and ending on the Closing Date (the “Post-Effective Date Taxes”) no
later than seven calendar days after the filing of the Tax Return with respect to which such
Post-Effective Date Taxes relate, including without limitation Pre-Closing Taxes. The
Post-Effective Date Taxes shall be determined in a manner similar to and consistent with

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the
determination of Pre Closing Taxes under Section 11.1(c). Buyers and Seller agree
to cooperate in good faith (i) in the determination and payment of Post-Effective Date Taxes
and (ii) to offset any redundant Tax payments to one another under this Article 11.
For the avoidance of doubt, Seller shall not be responsible or liable for any Taxes under
any provision of this Agreement with respect to the Acquired Companies attributable to any
period (including any partial period) on or after the Effective Date, including by reason of
a breach of any representation, warranty, covenant, or obligation of Seller related to or
arising from Taxes to the extent attributable to Post-Effective Date Taxes.

     11.2 Tax Sharing Agreement. Seller will cause any Tax sharing agreement or
similar arrangement with respect to Taxes involving any Acquired Company to be terminated effective
as of the Closing Date, to the extent any such agreement or arrangement relates to any Acquired
Company, and after the Closing Date, no Acquired Company shall have any obligation under any such
agreement or arrangement for any past, present, or future period.

     11.3 Seller Tax Indemnity. From and after the Closing Date, Seller shall protect,
defend, indemnify and hold harmless Buyers and the Acquired Companies from any and all Taxes (other
than from any and all Taxes described in Section 7.7, which shall be borne in accordance
with Section 7.7, and from any and all Post-Effective Date Taxes), but only to the extent
of Seller’s ultimate pro rata
ownership interest in any relevant Acquired Companies, which are (i) imposed on any of the
Acquired Companies in respect of their income, business, property or operations or for which they
may otherwise be liable (A) for any taxable period of any Acquired Company or portion thereof
ending prior to the Closing Date as provided in this Article 11, (B) resulting from the
breach of Seller’s covenants set forth in this Article 11 and/or breach of the
representations and warranties set forth in Section 4.10 or (C) relating to any
reorganization of the Acquired Companies done on or prior to the Closing Date. Seller shall have
no liability under this Section 11.3 to the extent that such liability would not have been
incurred but for (y) conduct of Buyers or their Affiliates that conflict with this Agreement or (z)
failures by Buyers or their Affiliates to make filings or take other actions required to be taken
by Buyers or their Affiliates under this Agreement (in each case, including the Acquired Companies
as Affiliates of Buyers from and after the Closing Date and, in each case, other than matters
resulting from or arising out of actions taken or failed to be taken at the direction of Seller).
Indemnification for Taxes pursuant to this Section 11.3 shall also include any reasonable
professional fees, accounting fees and other out of pocket costs incurred by Buyers and the
Acquired Companies (i) relating to the Tax liability for which indemnification is provided with any
such fees or costs being reduced by 50% so that Buyers and Seller share such fees or costs equally,
or (ii) in enforcing this indemnity against Seller. The indemnification for Taxes pursuant to this
Section 11.3 shall take into account any Tax Benefit arising from such indemnification. If
the amount of any Tax of an indemnitee is reduced as a result of indemnification for Taxes pursuant
to this Section 11.3, such amount shall promptly be paid by the indemnitee to the
indemnitor.

     11.4 Refunds. If, after the Closing, either Buyer or any of the Acquired
Companies (a) receive any refund or (b) use the benefit of any overpayment of Taxes which, in the
case of (a) and (b), (x) relates to Taxes paid by, or on behalf of, the Acquired Companies on or
before the Closing Date other than to the extent such Taxes are Post-Effective Date Taxes paid by
either

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Buyer or (y) is the subject of indemnification by Seller under this Agreement, Buyers shall
promptly transfer, or cause to be transferred, to Seller the entire amount of the refund or
overpayment (including interest used by Buyers) received or used by Buyers, or to the extent of
each Buyer’s ownership interest in an Acquired Company, by an Acquired Company. Buyers agree to
notify Seller within seven calendar days following the discovery of a right to claim any such
refund or overpayment and the receipt of any such refund or utilization of any such overpayment.
Buyers agree to use their best efforts to claim, or to be cause to be claimed, any such refund or
to use, or cause to be used, any such overpayment as soon as possible and to furnish to Seller all
information, records, and assistance necessary to verify the amount of the refund or overpayment.

     11.5 Assistance. Seller and Buyers shall each provide the other with such
assistance and cooperation as may reasonably be requested by either of them in connection with the
preparation of any Tax Return, any audit or other examination by any Taxing Authority or any
judicial or administrative proceeding with respect to Taxes and shall each retain in accordance
with its customary document retention policies and with Section 7.1 and provide the other
with any records or other information which may be relevant to any such return, audits examination
or proceeding. Any such request from Seller for information necessary for any Tax Return, any
audit or other examination by any Taxing Authority or any judicial or administrative proceeding
with respect to Taxes shall be fully responded to within 15 calendar days. Such cooperation shall
also include the nonexclusive designation of an employee of Seller or its Affiliates as a Tax
officer of Buyers or the Acquired Companies (for the limited purpose of signing Tax Returns and
dealing with Taxing Authorities with respect to any Tax Return filed pursuant to Section
11.1(b) or Section 11.1(c). Neither Buyer nor any of the Acquired Companies shall
without the prior written consent of Seller, which consent may be given in Seller’s sole
discretion, file, participate in, or agree to the filing of, any amended Tax Returns for any Tax
Returns, including the Acquired Companies with respect to taxable periods ending on or before the
Closing Date.

     11.6 Claims.

     (a) Notice. If either Buyer or, following the Closing Date, any Acquired
Company receives notice (whether orally or in writing) of any audit, examination,
investigation, suit, action, claim, or proceeding (a “Tax Audit”) from any Taxing
Authority with respect to Taxes for which Seller is responsible hereunder, then Buyers will
give to Seller reasonable prompt Notice thereof after either Buyer’s or an Acquired
Company’s receipt of such notice from a Taxing Authority, but the failure to give timely
Notice will not affect the rights or obligations of Seller except and only to the extent
that, as a result of such failure, Seller was disadvantaged in any material respect. Such
Notice shall contain factual information (to the extent known by either Buyer or an Acquired
Company) describing the Tax Audit in reasonable detail and shall include copies of all
correspondence with the Taxing Authority.

     (b) Control. To the extent within the control of Buyers and Seller, Seller
will have the right to participate in or, by giving Notice to Buyers, to elect to assume the
defense of any Tax Audit with respect to Taxes for which Seller is responsible hereunder at
Seller’s own expense and by Seller’s own counsel, and Buyers and the Acquired

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Companies will
cooperate in good faith in such defense at their own expense. If within 10 calendar days
after Buyers provide Notice to Seller of any Tax Audit, Buyers receive Notice from Seller
that Seller has elected to assume the defense of such Tax Audit, Seller will not be liable
for any legal expenses subsequently incurred by Buyers or any Acquired Company in connection
with the defense thereof. Buyers shall be entitled to participate in the defense of such
Tax Audit and to employ counsel for such purpose at the sole cost and expense of Buyers.
Without the prior written consent of Buyers, Seller will not enter into, or participate in,
any settlement of any Tax Audit which would lead to a Tax liability of Buyers or an Acquired
Company for which either Buyer or any Acquired Company is not entitled to indemnification
hereunder. If a firm offer is made to settle a Tax Audit without leading to a Tax liability
of Buyers or an Acquired Company for which Buyers or any Acquired Company is not entitled to
indemnification hereunder and Seller desires to accept and agree to such offer, Seller will
give Notice to Buyers to that effect. If Buyers fail to consent to such firm offer within
10 calendar days after its receipt of such Notice, Buyers may continue to contest or defend
the Tax Audit and, in such event, the maximum liability of Seller with respect to such Tax
Audit will be the amount of such settlement offer to the extent such settlement offer
reflects Taxes for which Seller is responsible hereunder. If Seller does not assume the
defense of any Tax
Audit, Buyers shall keep Seller fully informed with respect to the status of the Tax
Audit and will not settle such Tax Audit without the prior written consent of Seller, which
consent shall not be unreasonably withheld.

     11.7 Closing Tax Certificate. At the Closing, Seafarer US Pipeline System, Inc.,
on behalf of itself and Seller (which is disregarded as an entity separate from its parent for
federal tax purposes), shall deliver to Buyers a certificate (in substantially the form attached
hereto as Exhibit 11.7) signed under penalties of perjury (i) stating that it is not a
foreign corporation, foreign partnership, foreign trust or foreign estate, (ii) stating that it is
not a disregarded entity as defined in Treas. Reg. Section 1.1445-2(b)(2)(iii), (iii) providing its
U.S. Employer Identification Number, and (iv) providing its address, all pursuant to Section 1445
of the Code.

Article 12

SURVIVAL AND INDEMNIFICATION

     12.1 Indemnification.

     (a) Seller’s Indemnity. From and after the Closing, subject to the other terms
and limitations in this Article 12, Seller shall indemnify, defend, reimburse, and
hold harmless the Buyer Indemnitees from and against any and all Losses actually incurred by
any of the Buyer Indemnitees or asserted by a Third Party against any of the Buyer
Indemnitees related to or arising from (i) any breach of Seller’s representations or
warranties made, as of the Closing Date, in this Agreement or the Related Agreements (other
than a breach of any representation or warranty in Section 4.10 or Article
11, the indemnification obligations for which are set forth in Article 11); (ii)
any Excluded Asset, including the transfer thereof to Seller or any of its Affiliates; (iii)
any breach of the covenants or obligations of Seller in clauses (i), (ii) or
(iv) of Section 6.1; or (iv) any breach of the other covenants or
obligations of Seller and its Affiliates under this

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Agreement or the Related Agreements
(other than a breach of any covenant or obligation in Article 11, the
indemnification obligations for which are set forth in Article 11).

     (b) Each Buyer’s Indemnity. From and after the Closing, subject to the other
terms and limitations in this Article 12, each Buyer shall severally (but not
jointly) indemnify, defend, reimburse, and hold harmless the Seller Indemnitees from and
against any and all Losses actually incurred by any of the Seller Indemnitees or asserted by
a Third Party against any of the Seller Indemnitees relating to or arising from (i) any
breach of such Buyer’s representations or warranties made, as of the Closing Date, in this
Agreement or the Related Agreements (other than a breach of any representation or warranty
in Article 11, the indemnification obligations for which are set forth in
Article 11), or (ii) any breach of the covenants or obligations of such Buyer and
its Affiliates under this Agreement or the Related Agreements(other than a breach of any
covenant or obligation in Article 11, the indemnification obligations for which are
set forth in Article 11).

     (c) Seller’s Waiver. Notwithstanding anything to the contrary in this
Agreement or the Related Agreements, neither Buyer shall be liable to the Seller Indemnitees
under Section 12.1(b) for any exemplary, punitive, special, indirect, consequential,
remote, or speculative damages, except to the extent any such damages are included in any
action by a Third Party against a Seller Indemnitee for which such Seller Indemnitee is
entitled to indemnification under Section 12.1(b).

     (d) Buyers’ Waiver. Notwithstanding anything to the contrary in this Agreement
or the Related Agreements, Seller shall not be liable to the Buyer Indemnitees under
Section 12.1(a) for any exemplary, punitive, special, indirect, consequential,
remote or speculative damages, except to the extent any such damages are included in any
action by a Third Party against a Buyer Indemnitee for which such Buyer Indemnitee is
entitled to indemnification under Section 12.1(a).

     (e) Limitations on Indemnity. None of the Buyer Indemnitees shall be entitled
to assert any right to indemnification under Section 12.1(a)(i) and (iii) until the
aggregate amount of all such Losses actually suffered by the Buyer Indemnitees exceeds the
Deductible Amount, and then only to the extent such Losses exceed, in the aggregate, the
Deductible Amount. In no event shall Seller ever be required to indemnify the Buyer
Indemnitees for Losses under Section 12.1(a)(i) in any amount exceeding, in the
aggregate, 10% of the Total Purchase Price. Notwithstanding the foregoing, the limitations
on indemnification set forth in this Section 12.1(e) shall not apply to any
indemnification claim made for a breach of the Seller’s representations and warranties set
forth in Section 2.5(f), 4.1, 4.2, 4.3, 4.4,
4.10, 4.13(xi), 4.22, or 4.24, or Article 11.

     (f) Survival and Time Limitation. All of the representations, warranties,
covenants, obligations, and agreements of the Parties set forth in this Agreement and the
Related Agreements, including those obligations set forth in this Article 12, shall
survive the Closing. Notwithstanding the foregoing sentence, after Closing, any assertion
by Buyers or any Buyer Indemnitee that Seller is liable to Buyers or any Buyer Indemnitee

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for indemnification under the terms of this Agreement, the Related Agreements, or for any
other reason in connection with the transactions contemplated in this Agreement must be made
in writing and must be given to Seller on or prior to the date that is 18 months after the
Closing Date (or not at all), except for assertions by Buyers for (i) breach of the
representations and warranties in (A) Section 4.10 or the covenants, obligations,
and agreements in Article 11, which must be made in writing and must be given to the
Seller on or prior to the date that is 90 calendar days after the expiration of any
applicable statute of limitations (or not at all) and (B) Section 4.1, 4.2,
4.3, 4.4 or 4.22, which may be made in writing at any time from and
after the Closing or (ii) indemnification under Section 12(a)(ii) or Section
12.1(a)(iv), which must be made in writing and must be given to Seller on or prior
to the expiration of any applicable statute of limitations (or not at all).

     (g) Further Indemnity Limitations. The amount of any Loss shall be reduced (i)
to the extent any Person entitled to receive indemnification under this Agreement receives
any insurance proceeds with respect to a Loss, (ii) to take into account any Tax Benefit
arising from the recognition of the Loss, and (iii) to take into account any
payment or payments actually received by a Person entitled to receive indemnification
under this Article 12 with respect to a Loss. None of the Buyer Indemnitees shall
be entitled to indemnification by Seller under Section 12.1(a)(i) for any Losses
arising from any breach or inaccuracy of any representation or warranty in Article 4
of this Agreement which was within the knowledge of any of the Buyer Indemnitees at any time
prior to or at the Closing, including any such breach or inaccuracy known to a Buyer or its
Affiliates by reason of Seller having delivered written notice thereof (in a Schedule, a
supplemental Schedule, or otherwise) to Buyers at or prior to Closing. For the purposes of
the foregoing limitation, LP Buyer shall not be imputed with any knowledge of Corp Buyer or
any of its Affiliates (other than the LP Buyer). For purposes of clarity, Seller’s
obligation to indemnify the Buyer Indemnitees under Section 12.1(a)(i) or (iii) for
a Loss or Losses arising out of an Acquired Company shall be limited to and shall not exceed
the share of such Loss or Losses related to Seller’s aggregate direct and indirect ownership
interest in such Related Company as of the Closing Date.

     (h) Sole and Exclusive Remedy. From and after the Closing, except (i) as
provided in Article 11, (ii) for the assertion of any claim based on fraud, and
(iii) for matters covered by the Related Agreements, the indemnification provisions of this
Article 12 shall be the sole and exclusive remedy of each Party (including the
Seller Indemnitees and the Buyer Indemnitees) (A) for any breach of the other Party’s
representations, warranties, covenants, or agreements contained in this Agreement or (B)
with respect to the transactions contemplated hereby.

     (i) Tax Treatment of Payments. Buyers and Seller, their Affiliates, and the
Acquired Companies shall, to the extent permitted by Applicable Law, treat any indemnity
payments made under Article 11 or this Article 12 as adjustments to the
Purchase Price.

     12.2 Defense of Claims.

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     (a) Notice. Except as provided in Section 11.6, if an Indemnitee
receives notice of the assertion of any claim or of the commencement of any Third Party
Claim with respect to which indemnification is to be sought from the Indemnifying Party, the
Indemnitee will give such Indemnifying Party reasonable prompt Notice thereof, but in any
event not later than seven calendar days after the Indemnitee’s receipt of notice of such
Third Party Claim, but the failure to give timely Notice will not affect the rights or
obligations of the Indemnifying Party except and only to the extent that, as a result of
such failure, the Indemnifying Party was substantially disadvantaged. Such Notice shall
describe the nature of the Third Party Claim in reasonable detail and will indicate the
estimated amount, if practicable, of the Loss that has been or may be sustained by the
Indemnitee; provided, however, that such estimated amount shall in no way
limit the Indemnitee’s right to recover any amount of Losses over such estimate. The
Indemnifying Party will have the right to participate in or, by giving Notice to the
Indemnitee, to elect to assume the defense of, any Third Party Claim at such Indemnifying
Party’s own expense and by such Indemnifying Party’s own counsel, and the Indemnitee will
cooperate in good faith in such defense, unless the Third Party Claim seeks non-monetary
relief, in which case the Indemnitee may assume and conduct the
defense of such Third Party Claim at the Indemnifying Party’s expense. If such Third
Party Claim seeks both non-monetary and monetary relief, the Indemnifying Party shall have
the right to jointly participate in the defense of such Third Party Claim with the
Indemnitee.

     (b) Defense. Except as provided in Section 11.6, if within 10 calendar
days after an Indemnitee provides Notice to the Indemnifying Party of any Third Party Claim
the Indemnitee receives Notice from the Indemnifying Party that such Indemnifying Party has
elected to assume the defense of such Third Party Claim, the Indemnifying Party will not be
liable for any legal expenses subsequently incurred by the Indemnitee in connection with the
defense thereof. The Indemnitee shall be entitled to participate in the defense of such
Third Party Claim and to employ counsel for such purpose at the sole cost and expense of
Indemnitee. Each Party shall in good faith consult with the other Party regarding the
defense of any Third Party Claim upon the other Party’s reasonable request from time to
time. Without the prior written consent of the Indemnitee, the Indemnifying Party will not
enter into any settlement of any Third Party Claim which would lead to liability or create
any financial or other obligation on the part of the Indemnitee for which the Indemnitee is
not entitled to indemnification hereunder, or which would impose any injunctive or other
equitable remedy on the Indemnitee. If a firm offer is made to settle a Third Party Claim
without leading to liability or the creation of a financial or other obligation on the part
of the Indemnitee for which the Indemnitee is not entitled to indemnification hereunder (or
which would not impose any injunctive or other equitable remedy on the Indemnitee) and the
Indemnifying Party desires to accept and agree to such offer, the Indemnifying Party will
give Notice to the Indemnitee to that effect. If the Indemnitee fails to consent to such
firm offer within 10 calendar days after its receipt of such Notice, the Indemnitee may
continue to contest or defend such Third Party Claim and, in such event, the maximum
liability of the Indemnifying Party to such Third Party Claim will be the amount of such
settlement offer, plus reasonable costs and expenses paid or incurred by the Indemnitee up
to the date of such notice.

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     (c) Direct Claim. Any Direct Claim will be asserted by giving the Indemnifying
Party reasonably prompt written notice thereof, stating the nature of such claim in
reasonable detail and indicating the estimated amount, if practicable, but in any event not
later than 20 calendar days after the Indemnitee becomes aware of such Direct Claim (but the
obligations of the Indemnifying Party and the rights of the Indemnitee shall not be affected
by the failure to give such notice, except and only to the extent that, as a result of such
failure, the Indemnifying Party is substantially disadvantaged; provided,
however, that any such estimated amount shall in no way limit the Indemnitee’s
rights to recover any amount of Losses over such estimate). The Indemnifying Party will
have a period of 30 calendar days within which to respond to such Direct Claim. If the
Indemnifying Party does not respond within such 30-day period, the Indemnifying Party will
be deemed to have accepted such Direct Claim. If the Indemnifying Party rejects such Direct
Claim, the Indemnitee will be free to seek enforcement of its rights to indemnification
under this Agreement.

     (d) Subrogation. If the amount of any Loss, at any time subsequent to the
making of an indemnity payment in respect thereof, is reduced by recovery, settlement, or
otherwise under any insurance coverage or Tax Benefit, or under any claim, recovery,
settlement or payment by or against any other entity, the amount of such reduction, less any
costs, expenses, or premiums incurred in connection therewith, will promptly be repaid by
the Indemnitee to the Indemnifying Party. Upon making any indemnity payment, the
Indemnifying Party will, to the extent of such indemnity payment, be subrogated to all
rights of the Indemnitee against any Third Party in respect of the Loss to which the
indemnity payment relates; provided, that (i) the Indemnifying Party is in
compliance with its obligations under this Agreement in respect of such Loss, (ii) until the
Indemnitee recovers full payment of its Loss, any and all claims of the Indemnifying Party
against any such Third Party on account of said indemnity payment are hereby made expressly
subordinated and subjected in right of payment to the Indemnitee’s rights against such Third
Party, and (iii) the Indemnifying Party shall have no rights of subrogation against such
Third Party if the Indemnitee reasonably expects that pursuing such claim against such Third
Party would adversely affect the ongoing business prospects or relationship with such Third
Party of the Indemnitee or its Affiliates with such Third Party. Without limiting the
generality or effect of any other provision hereof, each such Indemnitee and Indemnifying
Party will execute upon request all instruments reasonably necessary to evidence and perfect
the above-described subrogation and subordination rights.

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Article 13

OTHER PROVISIONS

     13.1 Notices. All Notices shall be in writing and shall be deemed to have been
duly given or made if (i) delivered personally, (ii) transmitted by first class registered or
certified mail, postage prepaid, return receipt requested, (iii) delivered by prepaid overnight
courier service, or (iv) delivered by confirmed telecopy or facsimile transmission to the Parties
at the following addresses (or at such other addresses as shall be specified by the Parties by
similar notice):

If to either Buyer:

c/o TransCanada Corporation

TransCanada PipeLines Tower

450 First Street, S.W.

Calgary, Alberta T2P5H1

Attention:    Sean McMaster,

                    Executive Vice President

                    Law and General Counsel

Fax:             (403) 920-2410

with a copy to:

Mayer, Brown, Rowe & Maw LLP

71 South Wacker Drive

Chicago, IL 60606

Attention:    Marc F. Sperber

                    D. Michael Murray

Fax:             (312) 701-7711

If to Seller:

El Paso Corporation

1100 Louisiana Street

Houston, Texas 77002

Attention:    General Counsel

Fax:             (713) 420-5043

with a copy to:

Andrews Kurth LLP

600 Travis Street, Suite 4200

Houston, Texas 77002

Attention:    G. Michael O’Leary

Fax:             (713) 220-4285

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Notices shall be effective (i) if delivered personally or sent by courier service, upon actual
receipt by the intended recipient, (ii) if mailed, upon the earlier of 5 days after deposit in the
mail or the date of delivery as shown by the return receipt therefor, or (iii) if sent by telecopy
or facsimile transmission, when the answer back is received.

     13.2 Entire Agreement. This Agreement, together with the Schedules, the Exhibits,
and the Related Agreements, including the Confidentiality Agreement, constitute the entire
agreement among the Parties with respect to the subject matter hereof and supersede all prior
agreements and understandings, both written and oral, among the Parties with respect to the subject
matter hereof. There are no restrictions, promises, representations, warranties, covenants or
undertakings between the Parties, other than those expressly set forth or referred to herein or
therein.

     13.3 Binding Effect; Assignment; No Third Party Benefit. Subject to the following
sentence, this Agreement shall be binding upon and inure to the benefit of the Parties and their
successors and assigns. Neither this Agreement nor any of the rights, interests, or obligations
hereunder shall be assigned or delegated by either Party, other than to an Affiliate
(provided that if either Party so assigns or delegates to an Affiliate, such Party shall
not be released from its obligations hereunder as a result of such assignment), without the prior
written consent of the other Party. Except as provided herein,
nothing in this Agreement is intended to or shall confer upon any Person other than the
Parties, and their successors and permitted assigns, any rights, benefits, or remedies of any
nature whatsoever under or by reason of this Agreement.

     13.4 Severability. If any provision of this Agreement is held to be
unenforceable, this Agreement shall be considered divisible and such provision shall be deemed
inoperative to the extent it is deemed unenforceable, and in all other respects this Agreement
shall remain in full force and effect.

     13.5 Governing Law. This Agreement shall be governed by and construed and
enforced in accordance with the laws of the State of New York, without regard to its conflict of
laws rules or principles.

     13.6 Further Assurances. From time to time following the Closing, at the request
of any Party and without further consideration, the other Party shall execute and deliver to such
requesting Party such instruments and documents and take such other action as such requesting Party
may reasonably request to consummate more fully and effectively the transactions contemplated
hereby.

     13.7 Counterparts. This Agreement may be executed by the Parties in any number of
counterparts, each of which shall be deemed an original, but all of which shall constitute one and
the same agreement. Such execution may be evidenced by an exchange of facsimile communications or
any other rapid transmission device designed to produce a written record of communications
transmitted.

     13.8 Disclosure. Certain information set forth in the Schedules is included
solely for informational purposes, is not an admission of liability with respect to the matters
covered by the

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information, and may not be required to be disclosed under this Agreement. The
specification of any dollar amount in the representations and warranties contained in this
Agreement or the inclusion of any specific item in the Schedules is not intended to imply that such
amounts (or higher or lower amounts) are or are not material, and no Party shall use the fact of
the setting of such amounts or the fact of the inclusion of any such item in the Schedules in any
dispute or controversy between the Parties as to whether any obligation, item, or matter not
described herein or included in a Schedule is or is not material for purposes of this Agreement.

     13.9 Consent to Jurisdiction. The Parties hereby irrevocably submit to the
jurisdiction of the courts of the State of New York and the federal courts of the United States of
America located in The Borough of Manhattan New York, New York over any dispute arising out of or
relating to this
Agreement or any of the transactions contemplated hereby, and each Party irrevocably agrees
that all claims in respect of such dispute or proceeding shall be heard and determined in such
courts. The Parties hereby irrevocably waive, to the fullest extent permitted by Applicable Law,
any objection which they may now or hereafter have to the venue of any dispute arising out of or
relating to this Agreement or any of the transactions contemplated hereby brought in such court or
any defense of inconvenient forum for the maintenance of such dispute. Each Party agrees that a
judgment in any such dispute may be enforced in other jurisdictions by suit on the judgment or in
any other manner provided by Applicable Law.

     13.10 Specific Performance. The Parties agree that irreparable damage would occur
in the event that any of the provisions of this Agreement were not performed in accordance with its
specific terms or was otherwise breached. It is accordingly agreed that each Party shall be
entitled to an injunction or injunctions to prevent breaches of this Agreement and to enforce
specifically the terms and provisions hereof in addition to any other remedy to which such Party
may be entitled at law or in equity.

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     IN WITNESS WHEREOF, the Parties have executed this Agreement as of the day and year first
above written.

	 	 	 	 	 	 	 	 	 
	 	 	Seller:
	 
	 	 	 	 	 	 	 	 
	 	 	EL PASO GREAT LAKES COMPANY, L.L.C.
	 
	 	 	 	 	 	 	 	 
	 

	 	By	 	 /s/ John R. Sult	 	 	 	 
	 	 	 	 	 	 	 
	 	 	Name:	 	John R. Sult
	 	 	Title:	 	Senior Vice President, Chief Financial
	 	 	 	 	Officer and Controller
	 
	 	 	 	 	 	 	 	 
	 	 	Buyers:
	 
	 	 	 	 	 	 	 	 
	 	 	TC GL INTERMEDIATE LIMITED PARTNERSHIP
	 
	 	 	 	 	 	 	 	 
	 	 	By:	 	TC PipeLines GP Inc., its general partner
	 
	 	 	 	 	 	 	 	 
	 

	 	 	 	By:	 	 /s/ Mark A. P. Zimmerman	 	 
	 

	 	 	 	 	 	 	 	 
	 

	 	 	 	Name:	 	 Mark A. P. Zimmerman	 	 
	 

	 	 	 	 	 	 	 	 
	 

	 	 	 	Title:	 	 Vice President, Business
Development	 	 
	 

	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 
	 

	 	 	 	By:	 	 /s/ Ron Cook	 	 
	 

	 	 	 	 	 	 	 	 
	 

	 	 	 	Name:	 	 Ron Cook	 	 
	 

	 	 	 	 	 	 	 	 
	 

	 	 	 	Title:	 	 Vice President — Taxation	 	 
	 

	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 
	 	 	TRANSCANADA PIPELINE USA LTD.
	 
	 	 	 	 	 	 	 	 
	 

	 	By:	 	 /s/ Ron Anderson	 	 	 	 
	 	 	 	 	 	 	 
	 

	 	Name:	 	 Ron Anderson	 	 	 	 
	 	 	 	 	 	 	 
	 

	 	Title:	 	 Vice President	 	 	 	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 
	 

	 	By:	 	 /s/ David Kohlenberg	 	 	 	 
	 	 	 	 	 	 	 
	 

	 	Name:	 	 David Kohlenberg	 	 	 	 
	 	 	 	 	 	 	 
	 

	 	Title:	 	 Deputy General Counsel	 	 	 	 
	 	 	 	 	 	 	 

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Exhibit 7.12(a) to Purchase and Sale Agreement

BUYERS GUARANTY

     This Guaranty (“Guaranty”) dated as of December 22, 2006, is made by TransCanada
Corporation, a corporation organized under the laws of Canada (“TC Corp”), and TransCanada
PipeLine USA Ltd., a Nevada corporation (“Corp Buyer” and, collectively with TC Corp, the
“Guarantors”), in favor of El Paso Great Lakes Company, L.L.C., a Delaware limited
liability company (“Seller”), and its successors and assigns.

RECITALS

     A. Corp Buyer is a wholly-owned indirect subsidiary of TC Corp.

     B. Pursuant to a Purchase and Sale Agreement, dated as of December 22, 2006 (the “Purchase
Agreement”), between TC GL Intermediate Limited Partnership, a Delaware limited partnership
(“LP Buyer”) and collectively with Corp Buyer, the “Buyers”), Seller has agreed to
sell to Buyers, and Buyers have agreed to purchase from Seller, all of the Purchased Interests (as
defined in the Purchase Agreement).

     C. Section 7.12 of the Purchase Agreement requires that Buyers cause the Guarantors to deliver
this Guaranty to Seller.

     D. The Guarantors are familiar with the Purchase Agreement and have determined that the
guaranty provided in this Guaranty is necessary or convenient to the conduct, promotion, or
attainment of the business of the Guarantors, may reasonably be expected to benefit, directly or
indirectly, the Guarantors, and is in the best interests of the Guarantors.

     NOW, THEREFORE, in consideration of the premises and as a material inducement to the Seller to
enter into the Purchase Agreement, the Guarantors hereby agree as follows:

ARTICLE I

DEFINITIONS AND CONSTRUCTION

     1.1 Definitions. Capitalized terms used herein without definition that are defined in
the Purchase Agreement have the respective meanings assigned to such terms in the Purchase
Agreement. Additionally, the following terms have the meanings set forth below:

     “Business Day” means a day on which commercial banks or financial institutions are
open for business in the States of New York and Texas and the Province of Alberta, Canada.

     “Buyers” has the meaning set forth in the recitals.

     “Guaranteed Obligations” means the obligations of Buyers of whatsoever nature and
howsoever evidenced, due or to become due, now existing or hereafter arising,

 

 

whether direct or indirect, absolute or contingent, which may arise under, out of or in connection with the
Transaction Documents and any amendment, restatement or modification thereof.

     “Purchase Agreement” has the meaning set forth in the recitals.

     “Transaction Documents” means the Purchase Agreement and the other documents executed
and delivered by Buyers in connection with the Closing of the transactions contemplated by the
Purchase Agreement.

     1.2 Construction. The principles of construction set forth in Section 1.2 of the
Purchase Agreement are incorporated herein mutatis mutandis.

ARTICLE II

GUARANTY

     2.1 Guaranty. Each of the Guarantors, jointly and severally, hereby irrevocably and
unconditionally guarantees the full, complete and timely payment and performance by Buyers of the
Guaranteed Obligations. If either Buyer fails or refuses to pay or perform any of the Guaranteed
Obligations and Seller elects to exercise its rights under this Guaranty, Seller shall make a
demand upon both of the Guarantors (hereinafter referred to as a “Payment Demand”). A Payment
Demand shall be in writing and shall specify in which manner and what amount Buyers have failed to
pay or perform and an explanation of why such payment or performance is due. The Guarantors,
jointly and severally, shall pay or perform, as applicable, such Guaranteed Obligations set out in
the Payment Demand, to the extent Buyers are obligated to perform such Guaranteed Obligations under
the Transaction Documents, within five Business Days after the Guarantors’ receipt of the Payment
Demand. A single written Payment Demand shall be effective as to any specific default during the
continuance of such default until Buyers or a Guarantor shall have cured such default, and
additional written demands concerning such default shall not be required until such default is
cured.

     2.2 Guaranty Unconditional. This Guaranty is a guaranty of payment and performance
and not of collection. There are no conditions precedent to the enforcement of this Guaranty.
The obligations of the Guarantors hereunder shall be continuing, absolute and unconditional and,
without limiting the generality of the foregoing, shall not be released, discharged or otherwise
affected by:

     (a) any invalidity, illegality or unenforceability against Buyers of any
Transaction Document;

     (b) any modification, amendment, restatement, waiver or rescission of, or any
consent to the departure from, any of the terms of the Transaction Documents;

     (c) any exercise or non-exercise by Seller of any right or privilege under any
Transaction Document and any notice of such exercise or non-exercise;

2

 

     (d) any extension, renewal, settlement, compromise, waiver or release in respect of
any Guaranteed Obligation, by operation of law or otherwise, or any assignment of any
Guaranteed Obligation by a Seller;

     (e) any change in the corporate existence, structure or ownership of Buyers;

     (f) any insolvency, bankruptcy, reorganization or other similar proceeding
affecting Buyers or their assets or any resulting release or discharge of any Guaranteed
Obligation;

     (g) any requirement that Seller exhaust any right or remedy or take any action
against Buyers or any other Person before seeking to enforce the obligations of the
Guarantors under this Guaranty;

     (h) the existence of any defense, set-off or other rights (other than a defense of
payment or performance) that a Guarantor may have at any time against Buyers, Seller or
any other Person, whether in connection herewith or any unrelated transactions, provided
that nothing herein shall prevent the assertion of any such claim by separate suit or
compulsory counterclaim;

     (i) any other act or failure to act or delay of any kind by Buyers, Seller or any
other Person; or

     (j) any other circumstance whatsoever that might, but for the provisions of this
Section 2.2, constitute a legal or equitable discharge of the Guaranteed Obligations or
the obligations of a Guarantor hereunder, including but not limited to all defenses of a
surety (except for indefeasible payment in full);

provided that the Guarantors may interpose and assert as defense to payment or performance
hereunder (A) any counterclaim or setoff that Buyers are or would have been entitled to in respect
of their obligations and liabilities under the Transaction Documents and (B) any defense that
Buyers are or would have been entitled to arising out of the conduct of Seller in respect of their
obligations and liabilities under the Transaction Documents.

     2.3 Termination and Reinstatement. The Guarantors’ obligations hereunder shall remain
in full force and effect until all obligations of the Buyers under the Purchase Agreement have
expired or terminated or been released. If at any time any payment with respect to the Guaranteed
Obligations is rescinded or must be otherwise restored or returned as a result of any fraudulent
conveyance or the insolvency, bankruptcy or reorganization of Buyers or otherwise, the Guarantors’
obligations hereunder with respect to such payment shall be reinstated at such time as though such
payment had been due but not made at such time.

3

 

     2.4 Waivers. Each Guarantor irrevocably waives

     (a) notice of acceptance of this Guaranty and notice of any obligation or liability to
which it may apply;

     (b) any diligence, promptness, presentment, demand, performance, protest, demand for
payment, notice of non-payment as the same pertains to Buyers, suit or the taking of other
action by a Seller against, and any other notice to, Buyers, the Guarantors or others;

     (c) any right to require Seller to proceed against Buyers or to exhaust any security
held by Seller or to pursue any other remedy;

     (d) any defense based upon an election of remedies by Seller, unless the same would
excuse performance by Buyers under the Transaction Documents;

     (e) any duty of Seller to advise the Guarantors of any information known to Seller
regarding Buyers or their ability to perform under the Transaction Documents; and

     (f) any right to require a Proceeding against Buyers or any right to have Buyers
joined as a party to any Proceeding to enforce this Guaranty.

     2.5 Subrogation. Each Guarantor shall be subrogated to all rights of Seller against
Buyers in respect of any amounts paid by such Guarantor pursuant to the provisions of this
Guaranty; provided, however, that such Guarantor shall not be entitled to enforce or to receive any
payments arising out of or based upon such right of subrogation if any Guaranteed Obligations then
due have not been satisfied. If any amount is paid to a Guarantor on account of subrogation rights
under this Guaranty in violation of this Section 2.5, such amount shall be held in trust for the
benefit of Seller and shall be promptly paid to Seller to be credited and applied to the Guaranteed
Obligations, whether matured or unmatured or absolute or contingent, in accordance with the terms
of the Transaction Documents.

ARTICLE III

GUARANTORS’ REPRESENTATIONS

     Each Guarantor, jointly and severally, represents and warrants Seller, as of the date hereof
and as of the Closing Date, as follows:

     3.1 Existence. Each of the Guarantors is a corporation duly organized, validly
existing and in good standing under the laws of its jurisdiction of formation and has all requisite
power to execute and deliver this Guaranty and to perform its obligations hereunder.

     3.2 Due Authorization. The execution and delivery of this Guaranty and the
consummation of the transactions contemplated hereby have been duly authorized by all necessary
corporate action on the part of each of the Guarantors. This Guaranty has been

4

 

duly executed and delivered by each of the Guarantors and constitutes its legal, valid
and binding obligation, enforceable against such Guarantor in accordance with its terms,
subject to the effect of any applicable bankruptcy, insolvency, moratorium or similar
laws affecting creditors’ rights and remedies generally and to the effect of general
principles of equity (regardless of whether enforcement is considered in a proceeding
at law or in equity).

     3.3 Consents. All consents, licenses, clearances, authorizations, and approvals of,
and registrations and declarations with, any Governmental Entity necessary for the due execution,
delivery and performance of this Guaranty have been obtained and remain in full force and effect
and all conditions thereof have been duly complied with, and no other action by, and no notice to
or filing with, any Governmental Entity is required in connection with the execution, delivery or
performance of this Guaranty.

     3.4 No Conflict. The execution, delivery and performance of this Guaranty by each
Guarantor do not, and the consummation of the transactions contemplated hereby will not,

     (i) result in a breach of the Certificate of Incorporation or bylaws of such Guarantor
or any resolution adopted by its Board of Directors;

     (ii) result in, or constitute an event that, with the passage of time or giving of
notice or both, would be, a breach, violation or default (or give rise to any right of
termination, cancellation, prepayment or acceleration) under any agreement to which such
Guarantor is a party or by which its properties or assets may be bound that could
reasonably be expected to materially adversely affect the ability of such Guarantor to
perform its obligations under this Guaranty; or

     (iii) violate any Applicable Law binding upon such Guarantor or its assets or
properties.

     3.5 Litigation. There is no Proceeding pending against either of the Guarantors or
any of its subsidiaries, or to the knowledge of each Guarantor threatened against such Guarantor or
any of its subsidiaries, in which there is a reasonable possibility of an adverse decision that
could reasonably be expected to materially adversely affect the ability of such Guarantor to
perform its obligations under this Guaranty or which in any manner draws into question the validity
of this Guaranty.

ARTICLE IV

OTHER PROVISIONS

     4.1 Notices. All notices, requests, demands, and other communications required or
permitted to be given or made hereunder by either Guarantor or Seller (each a “Notice”)
shall be in writing and shall be deemed to have been duly given or made if (i) delivered
personally, (ii) transmitted by first class registered or certified mail, postage prepaid,
return receipt requested, (iii) delivered by prepaid overnight courier service, or (iv)
delivered by confirmed telecopy or facsimile transmission at the following addresses (or at
such other addresses as shall be specified by similar notice):

5

 

If to Seller:

El Paso Great Lakes, L.L.C.

1100 Louisiana Street

Houston, Texas 77002

Attention: General Counsel

Fax: (713) 420-5043

with a copy to:

Andrews Kurth LLP

600 Travis Street, Suite 4200

Houston, Texas 77002

Attention: G. Michael O’Leary

Fax: (713) 220-4285

If to the Guarantors:

TransCanada Corporation

TransCanada PipeLines USA Ltd.

TransCanada PipeLines Tower

450 1st Street S.W.

Calgary, Alberta T2P 5H1

Attention: Sean McMaster

Fax: (403) 920-2410

with a copy to:

Mayer, Brown, Rowe & Maw LLP

71 South Wacker Drive

Chicago, IL 60606

Attention: Marc F. Sperber

Fax: (312) 701-7711

Notices shall be effective (i) if delivered personally or sent by courier service, upon actual
receipt by the intended recipient, (ii) if mailed, upon the earlier of five days after deposit in
the mail or the date of delivery as shown by the return receipt therefor, or (iii) if sent by
telecopy or facsimile transmission, when the answer back is received.

     4.2 Entire Agreement. This Guaranty constitutes the entire agreement between the
Guarantors and Seller with respect to the subject matter hereof and supersedes all prior agreements
and understandings, both written and oral, between them with respect to the subject matter hereof.
There are no restrictions, promises, representations, warranties, covenants or undertakings between
the Guarantors and Seller other than those expressly set forth or referred to herein.

     4.3 Binding Effect; Assignment; No Third Party Benefit. Subject to the following
sentence, this Guaranty shall be binding upon each of the Guarantors and its

6

 

successors and assigns and shall inure to the benefit of each of Seller and its successors and assigns. Neither this
Guaranty nor any of the rights, interests, or obligations hereunder shall be assigned or delegated
by a party, other than to an Affiliate (provided that if a Guarantor so assigns or delegates to an
Affiliate, such Guarantor shall not be released from its obligations hereunder as a result of such
assignment), without the prior written consent of the other parties. Except as provided herein,
nothing in this Guaranty is intended to or shall confer upon any Person other than the parties, and
their successors and assigns, any rights, benefits, or remedies of any nature whatsoever under or
by reason of this Guaranty.

     4.4 Severability. If any provision of this Guaranty is held to be unenforceable, this
Guaranty shall be considered divisible and such provision shall be deemed inoperative to the extent
it is deemed unenforceable, and in all other respects this Guaranty shall remain in full force and
effect.

     4.5 Governing Law. This Guaranty shall be governed by and construed and enforced in
accordance with the laws of the State of New York, without regard to its conflicts of laws rules or
principles.

     4.6 Counterparts. This Guaranty may be executed by the parties in any number of
counterparts, each of which shall be deemed an original, but all of which shall constitute one and
the same agreement. Such execution may be evidenced by an exchange of facsimile communications or
any other rapid transmission device designed to produce a written record of communications
transmitted.

     4.7 Consent to Jurisdiction. The parties hereby irrevocably submit to the
jurisdiction of the courts of the State of New York and the federal courts of the United States of
America located in The Borough of Manhattan, New York, New York, over any dispute arising out of or
relating to this Agreement or any of the transactions contemplated hereby, and each party
irrevocably agrees that all claims in respect of such dispute or proceeding shall be heard and
determined in such courts. The parties hereby irrevocably waive, to the fullest extent permitted
by Applicable Law, any objection which they may now or hereafter have to the venue of any dispute
arising out of or relating to this Guaranty or any of the transactions contemplated hereby brought
in such court or any defense of inconvenient forum for the maintenance of such dispute. Each party
agrees that a judgment in any such dispute may be enforced in other jurisdictions by suit on the
judgment or in any other manner provided by Applicable Law.

     4.8 Amendment and Waiver. No amendment or waiver of any provision of this Guaranty,
nor consent to any departure by a Guarantor therefrom, shall in any event be effective unless the
same shall be in writing and signed by both Guarantors and Seller. Any such waiver or consent
shall be effective only in the specific instance and for the specific purpose for which given.

     4.9 No Implied Waiver. No failure or delay in exercising any right, power or
privilege or requiring the satisfaction of any condition hereunder, and no course of dealing
between the Guarantors and Seller operates as a waiver or estoppel of any right,

7

 

remedy or condition. No single or partial exercise of any right or remedy under this Guaranty precludes any
simultaneous or subsequent exercise of any other right, power or privilege. The rights and
remedies set forth in this Guaranty are not exclusive of, but are cumulative to, any rights or
remedies now or subsequently existing at law, in equity or by statute.

     4.10 Expenses. The Guarantors shall indemnify Seller for any and all costs and
expenses (including reasonable attorneys’ fees and expenses) incurred by Seller in the successful
enforcement of any rights under this Guaranty.

[Signatures on Following Page]

8

 

     IN WITNESS WHEREOF, each Guarantor has caused this Guaranty to be duly executed and delivered
by its officer thereunto duly authorized as of the date first above written.

	 	 	 	 	 
	 	TRANSCANADA CORPORATION

 	 
	 	By:  	/s/ Gregory A. Lohnes
 	 
	 	 	Name:  	Gregory A. Lohnes 	 
	 	 	Title:  	Chief Financial Officer

and Executive Vice-President 	 
	 

	 	 	 	 	 
	 	 	 
	 	By:  	

/s/ Ron Cook
 	 
	 	 	Name:  	Ron Cook 	 
	 	 	Title:  	Vice President -- Taxation 	 
	 

	 	 	 	 	 
	 	

TRANSCANADA PIPELINE USA LTD.

 	 
	 	By:  	/s/ Ron Anderson
 	 
	 	 	Name:  	Ron Anderson 	 
	 	 	Title:  	Vice President 	 
	 

	 	 	 	 	 
	 	 	 
	 	By:  	                                    /s/ David Kohlenberg
 	 
	 	 	Name:  	David Kohlenberg 	 
	 	 	Title:  	Deputy General Counsel 	 
	 

9exv10w18

 

Exhibit 10.18

TERAYON COMMUNICATION SYSTEMS, INC.

CODE

OF

BUSINESS CONDUCT

 

 

 

TABLE OF CONTENTS

	 	 	 	 	 
	 	 	Page	 
	TERAYON’S CODE OF BUSINESS CONDUCT
	 	 	1	 
	POLICY STATEMENT
	 	 	1	 
	APPROVALS AND WAIVERS
	 	 	2	 
	 
	 	 	 	 
	CONFLICTS OF INTEREST
	 	 	2	 
	Activities Outside the Terayon
	 	 	2	 
	Indirect Interests and Relationships
	 	 	3	 
	Community Activities
	 	 	3	 
	Service on Boards of Directors or Standing Committees
	 	 	4	 
	Competitor Relationships
	 	 	4	 
	Corporate Opportunities
	 	 	4	 
	 
	 	 	 	 
	BUSINESS RELATIONSHIPS
	 	 	5	 
	Customer Relationships
	 	 	5	 
	Selecting Suppliers
	 	 	5	 
	Working With Existing Suppliers
	 	 	6	 
	Sales Agents, Representatives, Distributors, and Consultants
	 	 	6	 
	Contracts and Commitments
	 	 	6	 
	 
	 	 	 	 
	FAIR COMPETITION
	 	 	7	 
	 
	 	 	 	 
	GIFTS, GRATUITIES, ENTERTAINMENT AND OTHER CONSIDERATIONS
	 	 	7	 
	Gifts
	 	 	7	 
	Loans
	 	 	8	 
	Meals, Entertainment, and Travel
	 	 	8	 
	Bribes and Kickbacks
	 	 	8	 
	 
	 	 	 	 
	DOING BUSINESS INTERNATIONALLY
	 	 	8	 
	 
	 	 	 	 
	Import and Export Regulation/Trade Compliance
	 	 	8	 
	Antiboycott Compliance
	 	 	9	 
	 
	 	 	 	 
	POLITICAL CONTRIBUTIONS AND LOBBYING
	 	 	9	 
	 
	 	 	 	 
	ACCURACY OF REPORTS, RECORDS AND ACCOUNTS
	 	 	10	 
	 
	 	 	 	 
	RECORD RETENTION AND STORAGE
	 	 	10	 
	 
	 	 	 	 
	GOVERNMENT INVESTIGATIONS
	 	 	10	 
	 
	 	 	 	 
	INSIDER TRADING; COMMUNICATIONS WITH THIRD PARTIES
	 	 	11	 
	 
	 	 	 	 
	TECHNOLOGY USE AND PRIVACY
	 	 	11	 

i

 

	 	 	 	 	 
	Authorization
	 	 	11	 
	Prohibition Against Violating Copyright Laws
	 	 	11	 
	Other Prohibited Uses
	 	 	11	 
	 
	 	 	 	 
	OUR WORK ENVIRONMENT
	 	 	12	 
	 
	 	 	 	 
	ENVIRONMENTAL
	 	 	12	 
	 
	 	 	 	 
	COMPLIANCE AND REPORTING
	 	 	12	 
	Compliance
	 	 	12	 
	Reporting Procedures and Other Inquiries
	 	 	12	 

ii

 

TERAYON’S CODE OF BUSINESS CONDUCT

POLICY STATEMENT

     It is the policy of Terayon Communication Systems, Inc. (“Terayon”) to conduct
business in accordance with all applicable laws and regulations of the countries in which it does
business. This Code of Business Conduct (“Code”) is designed to promote:

	 	•	 	honest and ethical conduct, including the ethical handling of actual or apparent
conflicts of interest between personal and professional relationships;

	 	•	 	avoidance of conflicts of interest, including disclosure to the appropriate person of
any transaction or relationship that reasonably could be expected to give rise to such a
conflict;

	 	•	 	full, fair, accurate, timely and understandable disclosure in the periodic reports
required to be filed by Terayon with the Securities and Exchange Commission and other
public communications made by Terayon;

	 	•	 	compliance with all applicable governmental laws, rules and regulations;

	 	•	 	the prompt internal reporting to the appropriate person of violations of this Code; and

	 	•	 	accountability for adherence to this Code.

     Terayon has established standards for behavior that govern Terayon’s actions, and members of
the Board of Directors, officers and employees should pattern their daily performance in compliance
with those standards. Terayon promotes ethical behavior and encourages employees to talk to
supervisors, managers and the Compliance Officer, who is Terayon’s General Counsel, when in doubt
about the best course of action in a particular situation. Additionally, employees should report
violations of laws, rules, regulations or this Code to their supervisor or manager or the
Compliance Officer. Employees reporting such violations in good faith will not be subject to
retaliation. Any employee in or aware of a situation that he or she believes may violate or lead
to a violation of this Code should follow the guidelines under “Compliance and Reporting”
below.

     This Code covers a wide range of business practices and processes. It does not cover every
issue that may arise, but it sets out basic principles to guide members of the Board of Directors,
officers and employees. Corporate policies and procedures provide details pertinent to many of the
provisions of this Code. Members of the Board of Directors, officers and employees are expected to
be aware of, and to act in accordance with, both this Code and Terayon’s other policies and
procedures at all times. Although there can be no better course of action than to apply common
sense and sound judgment, members of the Board of Directors, officers and employees should not
hesitate to use the resources available whenever it is necessary to seek clarification.

1

 

APPROVALS AND WAIVERS

     Certain provisions of this Code require members of the Board of Directors, officers and
employees to act, or refrain from acting, unless approval is received from the appropriate person.
Approvals for members of the Board of Directors and executive officers may be given by the Board of
Directors. Approvals for employees (including officers) may be given by the Compliance Officer.
Members of the Board of Directors, officers and employees may contact the Compliance Officer for
additional information on obtaining approvals.

     Employees (including officers) requesting any waivers from this Code should request such
waiver in writing from the Compliance Officer. Waivers from this Code for members of the Board of
Directors, Terayon’s executive officers and the Compliance Officer (if he or she is not an
executive officer) must be approved by the Board of Directors. Changes in this Code may only be
made by the Board of Directors and must be promptly disclosed to stockholders in a Form 8-K.

CONFLICTS OF INTEREST

     Each member of the Board of Directors, officer and employee owes Terayon a duty of undivided
business loyalty. This duty is violated if an employee engages in activities that cause, or may be
reasonably believed to cause, a conflict with the interests of Terayon. A conflict of interest
arises any time an employee’s personal interests or activities influence his or her ability to act
in the best interests of Terayon. All employees must discharge their responsibilities solely on
the basis of what is in the best interest of Terayon and independent of personal consideration or
relationships. Members of the Board of Directors and executive officers must disclose any
situation that could reasonably be expected to give rise to, or which others could reasonably
perceive as, a conflict of interest to the Board of Directors. Other officers and employees must
disclose any such potential conflict of interest to the Compliance Officer, who will advise the
disclosing officer or employee as to whether or not Terayon believes a conflict of interest exists.
Member of the Board of Directors, officers and employees should also disclose any such potential
conflict of interest involving “immediate family members,” which shall include spouses, siblings,
parents, stepparents, in-laws, children, stepchildren, partners or other members of the disclosing
party’s household.

Activities Outside Terayon

     Although Terayon has no interest in preventing members of the Board of Directors, officers and
employees from engaging in activities outside of Terayon, members of the Board of Directors,
officers and employees must make sure that their outside activities do not conflict or interfere
with their responsibilities to Terayon or reflect poorly on Terayon. For example, without
approval, a member of the Board of Directors, officer and employee generally may not:

	 	•	 	perform paid or unpaid work (including self-employment) on a product, application or
functionality that competes or may compete with Terayon’s business;

	 	•	 	perform paid or unpaid work for, serve as a director of, or provide any services to a
company or entity that is a competitor, supplier or customer of Terayon;

2

 

	 	•	 	use proprietary or confidential Terayon information for any purpose other than
fulfilling his or her duties to Terayon;

	 	•	 	use Terayon assets or labor for personal use, except for incidental use permitted under
the Terayon’s policies;

	 	•	 	acquire any interest in property or assets of any kind for the purpose of selling or
leasing such property or assets to Terayon;

	 	•	 	appear to represent Terayon as the participant in an outside activity unless Terayon has
authorized the employee to represent Terayon; or

	 	•	 	serve on the Board of Directors of a company or on the Customer Advisory Board or
Technical Advisory Board of any for-profit enterprise that competes with Terayon’s
business.

Direct and Indirect Interests and Relationships

     A potential conflict of interest can arise because of the business activities of a member of
the Board of Directors, officer or employee, or the activities of their close relations. A member
of the Board of Directors, officer or employee has a potential conflict of interest wherever he or
she, or his or her close relative has a significant relationship with, or has a significant
financial interest in, any supplier, customer or competitor of Terayon. A member of the Board of
Directors, officer or employee, or their close relative (including “immediate family members”) has
a significant financial interest if:

	 	•	 	the member of the Board of Directors, officer or employee, or their relative owns more
than 1% of the outstanding capital of a business; or

	 	•	 	the investment represents more than 5% of the total assets of the member of the Board of
Directors, officer or employee, or their close relative.

     A member of the Board of Directors, officer or employee should not make or influence any
decision that could directly or indirectly benefit himself or herself, or his or her close
relative. In order to protect a member of the Board of Directors, officer or employee and Terayon
from the appearance of a conflict of interest, he or she should make appropriate disclosure of the
interest to the Board of Directors, in the case of members of the Board and executive officers, and
the Compliance Officer, in the case of other officers and employees.

     For the purpose of this Code, a member of the Board of Directors, officer or employee’s close
relative includes the spouse or life-partner, brothers, sisters, parents, in-laws and children
whether such relationships are by blood or adoption.

Community Activities

     Terayon encourages all members of the Board of Directors, officers and employees to be
actively involved in their communities through volunteer service to charitable, civic and public
service organizations, and through participation in the political process and trade associations.

3

 

     Members of the Board of Directors, officers and employees must make sure, however, that their
service does not pose a conflict of interest with their duties to Terayon. This is particularly
important before accepting any leadership position (such as membership on the board of a charitable
or civic organization), before seeking or accepting political office and before advocating a
charitable contribution.

Service on Boards of Directors or Standing Committees

     Serving as a member of a board of directors of another company or as a member of a standing
committee of an organization may create a conflict of interest. Board members and executive
officers must obtain approval from the Board of Directors, and other officers and employees must
obtain approval from the Compliance Officer, prior to serving on a board or committee whose
interests may be adverse to Terayon’s or that may require a significant amount of time.

Competitor, Customer and Supplier Relationships

     Members of the Board of Directors, officers and employees must avoid even the appearance of a
conflict of interest in their relationships with Terayon’s competitors, customer and suppliers.
Without approval, members of the Board of Directors, officers and employees may not:

	 	•	 	maintain a financial investment of more than 1% of outstanding publicly traded stock in
the business of a competitor, customer or supplier;

	 	•	 	provide compensated or uncompensated services to a competitor, customer or supplier,
except for services rendered under a valid Terayon contract with the competitor, customer
or supplier;

	 	•	 	disclose any Terayon proprietary information to a competitor, unless the competitor is
also an actual or potential supplier or customer of Terayon and (a) the disclosure has been
approved by appropriate Terayon management or the Board of Directors, as appropriate, and
(b) a nondisclosure agreement is in place; or

	 	•	 	utilize for any unauthorized purposes or disclose to a competitor or other third-party
any proprietary data that has been entrusted to Terayon by a customer or supplier.

Corporate Opportunities & Resources

     Without approval, Board members, officers and employees are prohibited from taking for
themselves corporate opportunities that may otherwise accrue to the benefit of Terayon. Without
approval, no Board member, officer or employee may use Terayon property, information or position
for improper personal gain and may not compete with Terayon directly or indirectly except as
permitted by Terayon policies.

     All Board members, officer and employees should protect Terayon’s assets and ensure their
efficient use. Theft, carelessness and waste have a direct impact on Terayon’s profitability. All
Terayon assets should be used for legitimate business purposes.

4

 

     Terayon resources may be used for incidental personal uses so long as such use is reasonable,
does not interfere with a Board member’s, officer’s or employee’s duties, is not done for pecuniary
gain, does not conflict with Terayon’s business and does not violate any Terayon policy.

BUSINESS RELATIONSHIPS

It is Terayon’s policy to sell its products to customers on the merits of the products and
Terayon’s support of those products. Terayon’s competitive advantage is gained through its
performance, not unethical or illegal business practices. Each member of the Board of Directors,
officer and employee should endeavor to deal fairly with Terayon’s customers, suppliers,
competitors and employees. No employee should take unfair advantage of anyone through
manipulation, concealment, abuse of privileged information, misrepresentation of material facts or
any unfair-dealing practice.

Customer Relationships

     Terayon’s customers are Terayon’s first priority. Terayon employees should always treat
customers and potential customers with respect and the highest standards of business conduct.

     It is Terayon’s policy to always sell its products and services on their merits and to avoid
making untrue comments about the products and services of competitors.

     Members of the Board of Directors, officers and employees should follow the following
guidelines in selling Terayon products and services:

	 	•	 	sell on the strength of Terayon and its products and services;

	 	•	 	do not make claims about Terayon’s products or services unless the claims are both
factual and complete and can be fully substantiated;

	 	•	 	do not make untrue claims about a competitor’s products or services; and

	 	•	 	to maintain Terayon’s reputation, compliance with its quality processes and safety
requirements is essential. Terayon’s products and services must be designed and
manufactured to meet its obligations to customers. All inspection and testing documents
must be handled in accordance with all applicable regulations.

Selecting Suppliers

     Terayon’s suppliers, which are the companies and individuals that sell products and services
to Terayon, are important to Terayon’s business. Members of the Board of Directors, officers and
employees should always treat suppliers and potential suppliers with respect and the highest
standards of business conduct.

     Suppliers should be selected on the basis of objective criteria, such as value (quality for
price), price, technical excellence, service reputation and production/service capacity. All
purchasing should be done in accordance with Terayon’s policies. Purchases from a supplier

5

 

should never be contingent on the supplier’s purchases from Terayon. All Terayon suppliers
should be in full compliance with applicable labor, environmental and other laws.

Working With Existing Suppliers

     Members of the Board of Directors, officers and employees should follow the following rules
when working with suppliers:

	 	•	 	never interfere with a supplier’s contracts or business relations with a competitor of
Terayon;

	 	•	 	never reveal confidential information about one supplier to another supplier or to
anyone outside of Terayon;

	 	•	 	adhere to Terayon’s guidelines concerning gifts, gratuities, entertainment and other
considerations of value. See “Gifts, Gratuities, Entertainment and Other Considerations”
in this Code;

	 	•	 	avoid any interest that conflicts with the employee’s responsibility to Terayon. See
“Conflicts of Interest” in this Code; and

	 	•	 	reject any agreement with a supplier that restrains, or may appear to restrain,
competition. Such agreements violate Terayon’s policies and may violate the law.
Individuals with procurement responsibility should review the sections of this Code
concerning antitrust and should be familiar with applicable laws. If you are unsure
whether a proposed agreement violates this guideline, contact the Compliance Officer or
such officer’s designee.

Sales Agents, Representatives, Distributors, and Consultants

     Agreements with sales representatives, agents, marketing consultants, distributors and other
parties, require adherence to Terayon policy and applicable U.S. and foreign laws and regulations.
Terayon requires either a contracts administration or legal review of all such agreements, as well
as management approval prior to entering into any such agreements.

Contracts and Commitments

     No employee may agree to, or sign, any agreement binding Terayon without express
authorization. Terayon has instituted contract and signature approval policies, which identify
those individuals who have the authority to approve and sign certain contracts binding Terayon and
its subsidiaries. If there are any questions about which individuals have signature authority for
a given contract, contact the Compliance Officer or such officer’s designee.

     Members of the Board of Directors, officers and employees involved in proposals, bid
preparations or contract regulations must be certain that all statements, communications, and
representations to prospective customers are truthful and accurate.

6

 

FAIR COMPETITION

     Fair competition laws, including the U.S. antitrust rules, limit what Terayon can do with
another company and what Terayon can do on its own. Generally, the laws are designed to prohibit
agreements or actions that reduce competition and harm consumers. Members of the Board of
Directors, officers and employees may not enter into agreements or discussions with competitors
that have the effect of fixing or controlling prices, setting the terms of sale (discounts, prices,
credit terms, etc.), dividing and allocating markets or territories or boycotting suppliers or
customers. Collaboration or discussions with competitors on these topics may be illegal and
employees should discontinue any conversation with competitors that broach such topics.
Additionally, agreeing to or attempting to have a customer set its resale prices is a violation of
the fair competition laws. U.S. and foreign antitrust laws also apply to imports and exports.

GIFTS, GRATUITIES, ENTERTAINMENT AND OTHER CONSIDERATIONS

     Use of Terayon funds or property for illegal, unethical or otherwise improper purposes is
prohibited. The purpose of business entertainment and gifts in a commercial setting is to create
goodwill and a sound working relationship, not to gain advantage with customers or suppliers.

Gifts

     Except as set out below and in Terayon’s policies, or with the approval of the Board of
Directors, in the case of Board members and executive officers, or of the Compliance Officer, in
the case of other officers and employees, members of the Board of Directors, officers and employees
should refrain from giving and receiving business-related gifts.

	 	•	 	No member of the Board of Directors, officer or employee or agent of Terayon may solicit
or accept a business-related gift (including any payment, compensation, loan or other
financial favor) having a value of more than $1,000 from a person or organization seeking
to have or having a business relationship with Terayon or which has interests that could be
substantially affected by actions of Terayon. Any benefits received from accepting a
business-related gift should not influence, or appear to influence, selection and
purchasing decisions.

	 	•	 	It is never appropriate or permissible to accept or give cash or a cash equivalent from
or to a vendor, supplier or customer. Cash equivalents include, among other things,
checks, money orders and vouchers.

	 	•	 	No member of the Board of Directors, officer or employee or agent of Terayon may give a
business-related gift having a value greater than $1,000 to any person or organization on
behalf of Terayon. Rules relating to U.S. and foreign government personnel are more
stringent.

	 	•	 	No member of the Board of Directors, officer or employee may accept a customer, vendor
or supplier discount for themselves unless it is approved and available to all Terayon
employees.

7

 

     Invitations to participate in so-called “directed shares,” “friends and family,” and similar
stock purchase programs of customers, vendors or suppliers of Terayon are considered to be gifts.
Members of the Board of Directors, officers and employees must decline to participate in such
programs unless the member of the Board of Directors, officer or employee has sought and received
approval from the Compliance Officer or the Board of Directors (if the person is a member of the
Board of Directors or an executive officer) to participate in such program.

Loans

     Members of the Board of Directors, officer and employees may not accept loans from any person
or entities having or seeking business with Terayon. Members of the Board of Directors and
executive officers may not receive loans from Terayon, nor may Terayon arrange for any loan. A
loan from a financial institution in ordinary course at normal interest rates prevailing at the
time of borrowing is permissible.

Meals, Entertainment, and Travel

     Members of the Board of Directors, officers and employees may provide or accept business meals
and entertainment, including attendance at sporting or cultural events, as long as it is provided
as a normal part of business. The value of the activity must be reasonable and permissible under
Terayon’s expense account procedures, regardless of whether or not Terayon is paying for the
activity. Each member of the Board of Directors, officer or employee should express care to insure
that their value and frequency are not excessive under all the applicable circumstances.

Bribes and Kickbacks

     The use Terayon funds, facilities or property for any illegal or unethical purpose is strictly
prohibited.

	 	•	 	No member of the Board of Directors, officer or employee or agent of Terayon is
permitted to offer, give or cause others to give, any payments for the purpose of
influencing the recipient’s business judgment or conduct; for instance, to buy a Terayon
product or service. Such payments include money, favors, entertainment or gifts.

	 	•	 	Members of the Board of Directors, officers and employees may not solicit or accept a
kickback or bribe, in any form, for any reason.

DOING BUSINESS INTERNATIONALLY

Import and Export Regulation/Trade Compliance

     Because of the international nature of its business, Terayon is subject to the import and
export laws and regulations of the United States and certain foreign governments. These laws and
regulations govern the international transfer of all products and services of Terayon, as well as
technology, information and ideas belonging to Terayon.

8

 

     Under U.S. law, no technology may be exported without the proper government export licenses
and documentation. Exports of technology include not only technology shipped via freight, but also
technology that is hand-carried (employees traveling overseas), sent via courier services or U.S.
mail, electronically transmitted and/or disclosed to foreign nationals in the United States or
abroad. “Technology” is defined as hardware, software, technical documentation, product
specifications, technical data, etc.

     It is the responsibility of employees to ensure that proper documentation accompanies each
export or disclosure. Failure to export or re-export without the proper export license or
documentation can jeopardize Terayon’s compliance with U.S. export laws, as well as those laws of
foreign countries. Non-compliance can result in denial of export privileges, criminal penalties,
seizure of commodities, and fines to Terayon and its employees.

     It is Terayon’s policy to comply fully with all applicable U.S. and foreign laws controlling
the export and re-export of commercial products, technology (including software) and services.
Employees must exercise the necessary diligence to ensure that Terayon and its employees,
contractors, joint ventures and distributors/resellers involved in the export or re-export of U.S.
origin goods, technology and services comply with all applicable U.S. and foreign government
regulations regarding exports.

Anti-boycott Compliance

     The United States has enacted antiboycott regulations which make unlawful certain actions,
including but not limited to furnishing information about business relationships with boycotted
countries, or information about race, religion, sex or national origin.

     Antiboycott compliance issues arise most frequently in connection with the Arab boycott of
Israel. In the event that a Terayon employee or agent is asked for any prohibited information or
to take any action in furtherance of a boycott, the employee or agent should respond only with the
following statement: “Terayon policy and U.S. law do not permit me to respond to the question or
request.”

POLITICAL CONTRIBUTIONS AND LOBBYING

     No political contributions are to be made using Terayon funds or assets, or the funds or
assets of any Terayon subsidiary, to any political party, political campaign, political candidate
or public official in the United States or any foreign country, unless the contribution is lawful
and expressly authorized in writing. In addition, no member of the Board of Directors, officer or
employee may make a political contribution on behalf of Terayon or its subsidiaries, or with the
appearance that such contribution is being made on behalf of Terayon or its subsidiaries, unless
expressly authorized in writing by the Board of Directors. A “contribution” is any direct or
indirect payment, distribution, loan, advance, deposit, or gift of money, services or anything of
value in connection with an election or to an organization or group formed to support or defend a
referendum or ballet issue.

     Nothing in this Code is intended to discourage employees from making contributions of their
own time or funds to political parties or candidates of their choice. However, members of the

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Board of Directors, officers and employees will not be compensated or reimbursed by Terayon
for any personal contributions.

     Members of the Board of Directors, officers and employees must obtain prior approval by the
Board of Directors to hire outside counsel or a public affairs firm to contact government officials
regarding legislation, regulatory policy, or rule making. This includes grassroots lobbying
contacts.

ACCURACY OF REPORTS, RECORDS AND ACCOUNTS

     All employees are responsible for the accuracy of their respective records, time sheets and
reports. Accurate information is essential to Terayon’s ability to meet legal and regulatory
obligations and to compete effectively. The records and books of account of Terayon shall meet the
highest standards and accurately reflect the true nature of the transactions they record.

     Members of the Board of Directors, officers and employees must not create false or misleading
documents or accounting, financial or electronic records for any purpose, and no one may direct an
employee to do so. For example, expense reports must accurately document expenses actually
incurred in accordance with Terayon policies. Members of the Board of Directors, officers and
employees must not obtain or create “false” invoices or other misleading documentation or invent or
use fictitious entities, sales, purchases, services, loans or other financial arrangements for any
purpose. Employees are also responsible for accurately reporting time worked.

     No undisclosed or unrecorded account or fund shall be established for any purpose. No false
or misleading entries shall be made in Terayon’s books or records for any reason. No disbursement
of corporate funds or other corporate property shall be made without adequate supporting
documentation or for any purpose other than as described in the documents. Members of the Board of
Directors, officers and employees shall comply with generally accepted accounting principles and
Terayon’s internal controls at all times.

RECORD RETENTION AND STORAGE

     Members of the Board of Directors, officers and employees should save business records,
including electronic data, as specified in Terayon’s Records Retention Policy.

GOVERNMENT INVESTIGATIONS

     It is Terayon’s policy to cooperate with all government investigations. Members of the Board
of Directors, officers and employees must promptly notify the Compliance Officer of any government
investigation.

     Members of the Board of Directors, officers and employees must not obstruct the collection of
information, data or records. Terayon provides information to the government that it is entitled
to during an inspection, investigation or request for information. Members of the Board of
Directors, officers and employees must not lie to investigators or making misleading statements.
Members of the Board of Directors, officers and employees must not attempt to

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cause a member of the Board of Directors, officer or employee to fail to provide accurate
information.

     Members of the Board of Directors, officers and employees have the right to consult their own
legal counsel, at his or her own expense.

INSIDER TRADING; COMMUNICATIONS WITH THIRD PARTIES

     Members of the Board of Directors, officers and employees who have access to confidential
information are not permitted to use or share that information for stock trading purposes or for
any other purpose except the conduct of our business. For a more detailed discussion about
Terayon’s policy with respect to insider trading, pre-clearance and communication with media and
the financial community, please see Terayon’s Insider Trading Policy, Regulation FD
Policy and Section 16 Policy.

TECHNOLOGY USE AND PRIVACY

     Terayon provides various technology resources (including computers, telephones, software,
copying machines, Internet access, and voice mail) to employees to assist them in performing their
job duties for Terayon. Each employee has the responsibility to use Terayon’s technology resources
in a manner that complies with applicable laws and Terayon policies, increases productivity,
enhances Terayon’s public image and is respectful of other employees.

Authorization

     Access to Terayon’s technology resources is within the sole discretion of Terayon and subject
to Terayon policies. Generally, employees are given access to Terayon’s various technologies
consistent with their job functions. Terayon reserves the right to limit such access by any means
available to it, including revoking access altogether.

Prohibition Against Violating Copyright Laws

     Employees may not use Terayon’s technology resources to copy, retrieve, forward or send
copyrighted materials unless the employee has the author’s permission or is accessing a single copy
only for the employee’s reference.

     Violation of copyright laws is a potential financial and legal liability for both Terayon and
the offending employee.

Other Prohibited Uses

     Employees may not use any of Terayon’s technology resources for any illegal purpose, in
violation of any Terayon policy, in a manner contrary to the best interests of Terayon, in any way
that discloses confidential or proprietary information of Terayon or third parties or for personal
or pecuniary gain without approval.

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OUR WORK ENVIRONMENT

     The diversity of Terayon’s employees is a tremendous asset. Terayon is firmly committed to
providing equal opportunity in all aspects of employment and will not tolerate any illegal
discrimination or harassment of any kind. In addition, Terayon strives to provide each employee
with a safe and healthy work environment. Each employee has responsibility for maintaining a safe
and healthy workplace for all employees by following health and safety rules and practices and
reporting accidents, injuries and unsafe equipment, practices or conditions. Terayon’s
Employee Handbook contains additional guidelines.

ENVIRONMENTAL

     Terayon must fully comply with all state and federal laws relating to the protection of the
environment in the conduct of its business. Employees must use, store and dispose all hazardous
materials properly and in accordance with applicable. Employees must report, in accordance with
Terayon policies, all circumstances under which hazardous materials or wastes come in contact with
the environment, are improperly handled or disposed of, or where a potential violation of law may
exist.

COMPLIANCE AND REPORTING

Compliance

     Obeying the law, both in letter and in spirit, is the foundation of this Code. We expect
employees to understand the legal and regulatory requirements applicable to their business unit and
area of responsibility. Where needed, Terayon may make legal resources available to employees to
assist them in understanding our legal obligations.

     Disregard of the law will not be tolerated. Violation of domestic or foreign laws, rules and
regulations may subject you, as well as Terayon, to civil and/or criminal penalties. Conduct and
records, including e-mails, are subject to internal and external audits, and to discovery by third
parties in the event of a government investigation or civil litigation.

     Additionally, any member of the Board of Directors, officer or employee who violates the
provisions of this Code will be subject to disciplinary action, up to and including termination.

Reporting Procedures and Other Inquiries

     Questions regarding the policies in this Code may be directed to the Compliance Officer.
Managers and supervisors provide timely advice and guidance to employees on ethics and compliance
concerns. Managers and supervisors are expected to take a leadership role in promoting ethical
business conduct. If any member of the Board of Directors, officer or employee having knowledge
of, or questions or concerns about, an actual or possible violation of the provisions of this Code
by a Board member or an executive officer, that person should promptly report the matter to the
Board. If a Board member, officer or employee having knowledge of, or questions or concerns about,
an actual or possible violation of the provisions of this Code by an officer or an employee, then
that person should promptly report the matter to the

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Compliance Officer. The Board and/or the Compliance Officer will determine the type of
investigation, if any, to be utilized to address such reports.

     All conversations, calls and reports made in good faith will be taken seriously. When
reporting a violation, employees will be asked to provide the time, location, names of the people
involved, and other details so that Terayon can investigate. Terayon prohibits retaliation or
retribution against any person who in good faith reports an ethical concern. However, anyone who
uses this Code or any compliance program to spread falsehoods, threaten others, or damage another
person’s reputation will be subject to disciplinary action up to and including termination.

     This document is not an employment contract between Terayon and its employees, nor does it
modify their employment relationship with Terayon.

     This Code is intended to clarify each member of the Board of Directors, officer and employee’s
existing obligation for proper conduct. The standards and the supporting policies and procedures
may change from time to time in Terayon’s discretion. Each member of the Board of Directors,
officer and employee is responsible for knowing and complying with the current laws, regulations,
standards, policies and procedures that apply to Terayon’s work.

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ACKNOWLEDGEMENT1

     I acknowledge that I have received and read a copy of Terayon Communication Systems,
Inc.’s (“Terayon”) Code of Business Conduct and Ethics (the “Code”). I understand that I am
responsible for knowing and complying with the policies set forth in the Code during my employment
with Terayon.

     I also acknowledge my responsibility to report any violation of this Code or any of Terayon’s
other policies and practices to my Chief Compliance Officer.

     I further understand that the policies contained in the Code are not intended to create any
contractual rights or obligations, express or implied. I also understand that, consistent with
applicable law, Terayon has the right to amend, interpret, modify or withdraw any of the provisions
of the Code at any time in its sole discretion, with or without notice.

     I understand and agree that my relationship with Terayon is “at-will,” which means that my
employment is for no definite period and may be terminated by me or by Terayon at any time and for
any reason, with or without cause or advance notice. I also understand that Terayon may demote or
discipline me, or otherwise alter the terms of my employment, at any time with or without cause or
advance notice.

     Finally, I understand and agree that the terms of this Acknowledgement, and my at-will
relationship with Terayon, may not be modified or superseded except by a written agreement signed
by the Chief Executive Officer; that no other employee or representative of the Company has the
authority to enter into any such agreement; and that any agreement inconsistent with this
Acknowledgement or agreeing to employ me for a specified term will be unenforceable unless in
writing and signed by the Chief Executive Officer.

	 	 	 
	Employee Name:

	 	 
	 

	 	 
	 

	 	     (please print)

	 	 	 
	 
	Signature
	 	Date

	 	 	 	 	 	 	 
	Title:

	 	 
	 	Dept.:
	 	 
	 

	 	 
	 	 	 	 

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