FindLaw - Combination Agreement - Duke Energy Corp. and Westcoast Energy Inc.

                              COMBINATION AGREEMENT

                                      AMONG

                            DUKE ENERGY CORPORATION,

                          3058368 NOVA SCOTIA COMPANY,

                               3946509 CANADA INC.

                                       AND

                              WESTCOAST ENERGY INC.









                               SEPTEMBER 20, 2001



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                                TABLE OF CONTENTS


ARTICLE 1 INTERPRETATION
1.1      Definitions..................................................1
1.2      Interpretation Not Affected by Headings, etc.................9
1.3      Rules of Construction........................................9
1.4      Date For Any Action..........................................9
1.5      Schedules....................................................9
ARTICLE 2 THE ARRANGEMENT
2.1      Implementation Steps by Westcoast...........................10
2.2      Implementation Steps by Duke Energy Parties.................10
2.3      Interim Order...............................................11
2.4      Articles of Arrangement.....................................11
2.5      Westcoast Circular..........................................11
2.6      Securities Compliance.......................................12
2.7      Preparation of Filings......................................13
ARTICLE 3 REPRESENTATIONS AND WARRANTIES of Westcoast
3.1      Organization and Standing...................................14
3.2      Capitalization..............................................15
3.3      Authority and No Conflicts..................................17
3.4      Consents; Approvals.........................................18
3.5      No Defaults.................................................18
3.6      Absence of Certain Changes or Events........................19
3.7      Employment Matters..........................................19
3.8      Reports; Financial Statements...............................21
3.9      Contracts...................................................22
3.10     Litigation..................................................23
3.11     Environmental...............................................23
3.12     Tax Matters.................................................24
3.13     Pension and Employee Benefits...............................25
3.14     Affiliates..................................................28
3.15     Compliance with Laws; Permits...............................29
3.16     Restrictions on Business Activities.........................29
3.17     Intellectual Property.......................................30
3.18     Insurance...................................................31
3.19     Property....................................................31
3.20     Regulatory Proceedings......................................32
3.21     Regulation as a Utility.....................................32
3.22     Futures Trading and Fixed Price Exposure....................32
3.23     Opinion of Financial Advisor................................33
3.24     Brokerage and Finders' Fees.................................33
3.25     Westcoast Rights Plan.......................................33
3.26     Solvency of Westcoast.......................................33




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ARTICLE 4 REPRESENTATIONS AND WARRANTIES OF THE DUKE ENERGY PARTIES
   4.1      Organization and Standing.............................................33
   4.2      Capitalization........................................................34
   4.3      Authority and No Conflicts............................................35
   4.4      Consents; Approvals...................................................36
   4.5      No Defaults...........................................................36
   4.6      Absence of Certain Changes or Events..................................37
   4.7      Reports; Financial Statements.........................................37
   4.8      Litigation............................................................37
   4.9      Environmental.........................................................38
   4.10     Nuclear Operations....................................................39
   4.11     Compliance with Laws; Permits.........................................39
   4.12     Regulatory Proceedings................................................40
   4.13     Futures Trading and Fixed Price Exposure..............................40
   4.14     Brokerage and Finders' Fees...........................................40
ARTICLE 5 COVENANTS AND AGREEMENTS
   5.1      Covenants of Westcoast................................................40
   5.2      Covenants of Duke Energy..............................................47
   5.3      Access to Information.................................................49
   5.4      Indemnification.......................................................50
   5.5      Covenants Regarding Non-Solicitation..................................50
   5.6      Right to Accept a Superior Proposal...................................52
   5.7      Employee Benefits and Related Matters.................................53
   5.8      Prohibition on Voluntary Liquidation..................................54
   5.9      Conversion of Westcoast Preferred Shares..............................54
   5.10     Closing Matters.......................................................55
ARTICLE 6 CONDITIONS
   6.1      Mutual Conditions.....................................................55
   6.2      Additional Conditions to the Obligations of the Duke Energy Parties...56
   6.3      Additional Conditions to the Obligations of Westcoast.................58
   6.4      Satisfaction of Conditions............................................59
ARTICLE 7 AMENDMENT AND TERMINATION
   7.1      Amendment.............................................................59
   7.2      Termination...........................................................59
   7.3      Effect of Termination.................................................61
   7.4      Effect of Termination Fee Payment.....................................63
ARTICLE 8 GENERAL
   8.1      Investigation.........................................................64
   8.2      Notices...............................................................64
   8.3      Assignment............................................................65
   8.4      Binding Effect........................................................65
   8.5      Third-Party Beneficiaries.............................................65
   8.6      Waiver and Modification...............................................65
   8.7      No Personal Liability.................................................65
   8.8      Further Assurances....................................................66



                             COMBINATION AGREEMENT
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   8.9      Expenses..............................................................66
   8.10     Public Announcements..................................................66
   8.11     Governing Laws; Consent to Jurisdiction...............................66
   8.12     Remedies..............................................................66
   8.13     Time of Essence.......................................................67
   8.14     Entire Agreement......................................................67
   8.15     Severability..........................................................67
   8.16     Counterparts..........................................................67


Schedules:
     A - Form of Affiliate's Letter
     B - Appropriate Regulatory Approvals
     C - Form of Arrangement Resolution
     D - Form of Westcoast Rights Plan Waiver Resolution
     E - Form of Plan of Arrangement
     F - Form of Support Agreement
     G - Form of Voting and Exchange Trust Agreement




                             COMBINATION AGREEMENT
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                              COMBINATION AGREEMENT

         THIS COMBINATION AGREEMENT dated September 20, 2001 (this "Agreement"),
is entered into by and among Duke Energy Corporation, a North Carolina
corporation ("Duke Energy"), 3058368 Nova Scotia Company, an unlimited liability
company existing under the Laws of the Province of Nova Scotia and an indirect
wholly-owned subsidiary of Duke Energy Corporation ("Callco"), 3946509 Canada
Inc., a corporation existing under the Laws of Canada and a wholly-owned
subsidiary of Callco ("Exchangeco"), and Westcoast Energy Inc., a corporation
existing under the Laws of Canada ("Westcoast"). Duke Energy, Callco and
Exchangeco are collectively referred to herein as the "Duke Energy Parties."

                                    RECITALS

         The Board of Directors of Westcoast has determined that the business
combination to be effected by means of the Plan of Arrangement is advisable and
in the best interest of Westcoast and has approved the transactions contemplated
by this Agreement and determined to recommend approval of the Plan of
Arrangement and other transactions contemplated hereby to the Westcoast
Securityholders.

         The Board of Directors of Duke Energy has determined that the business
combination to be effected by means of the Plan of Arrangement is advisable and
in the best interest of Duke Energy and has approved the transactions
contemplated by this Agreement.

         In furtherance of such business combination, the Board of Directors of
Westcoast has agreed to submit the Plan of Arrangement and other transactions
contemplated hereby to the Westcoast Securityholders and the Supreme Court of
British Columbia for approval.

         NOW THEREFORE, in consideration of the foregoing and the respective
representations, warranties, covenants and agreements set forth herein, the
parties hereto agree as follows:

                                   ARTICLE 1

                                 INTERPRETATION

1.1      DEFINITIONS

         In this Agreement, unless the context otherwise requires, the following
terms shall have the following meanings respectively:

         "1933 ACT" means the United States Securities Act of 1933, as amended;

         "1935 ACT" means the United States Public Utility Holding Company Act 
         of 1935, as amended;

         "ACQUISITION PROPOSAL" means any of the following (other than the
         transactions contemplated by this Agreement or the Arrangement): (a)
         any merger, amalgamation, arrangement, share exchange, take-over bid,
         tender offer, recapitalization, consolidation 


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         or business combination directly or indirectly involving Westcoast or
         any of its Material Subsidiaries (for this purpose, each reference to
         5% in the definition of Material Subsidiary shall be deemed to be 10%),
         (b) any acquisition of assets representing 20% or more of the book
         value (on a consolidated basis) of the assets of Westcoast and its
         subsidiaries, taken as a whole (or any lease, long-term supply
         agreement, exchange, mortgage, pledge or other arrangement having a
         similar economic effect) in a single transaction or a series of related
         transactions, (c) any acquisition of beneficial ownership (as defined
         under Section 13(d) of the Exchange Act) of 20% or more of the
         Westcoast Common Shares in a single transaction or a series of related
         transactions, (d) any acquisition by Westcoast of any assets or capital
         stock of another person (other than acquisitions of capital stock or
         assets of any other person that are not, individually or in the
         aggregate, material to Westcoast and its subsidiaries, taken as a
         whole), or (e) any bona fide proposal to, or public announcement of an
         intention to, do any of the foregoing;

         "AFFECTED EMPLOYEES" has the meaning ascribed thereto in Section 5.7;

         "AFFILIATE" has the meaning ascribed thereto in the Securities Act,
         unless otherwise expressly stated herein;

         "AFFILIATE'S LETTER" means a letter, to be substantially in the form
         and content of Schedule A annexed hereto;

         "AGREEMENT" has the meaning ascribed thereto in the Preamble;

         "APPROPRIATE REGULATORY APPROVALS" means those sanctions, rulings,
         consents, orders, exemptions, permits and other approvals (including
         the lapse, without objection, of a prescribed time under a statute or
         regulation that states that a transaction may be implemented if a
         prescribed time lapses following the giving of notice without an
         objection being made) of Governmental Entities, or self-regulatory
         organizations, as set out in Schedule B annexed hereto;

         "ARRANGEMENT" means an arrangement under Section 192 of the CBCA on the
         terms and subject to the conditions set out in the Plan of Arrangement,
         subject to any amendments or variations thereto made in accordance with
         Section 7.1 hereof or Article 6 of the Plan of Arrangement, or made at
         the direction of the Court in the Final Order;

         "ARRANGEMENT RESOLUTION" means the special resolution of the Westcoast
         Securityholders, to be substantially in the form and content of
         Schedule C annexed hereto;

         "ARTICLES OF ARRANGEMENT" means the articles of arrangement of
         Westcoast in respect of the Arrangement that are required by the CBCA
         to be sent to the Director after the Final Order is made;

         "BUSINESS DAY" means any day on which commercial banks are generally
         open for business in New York, New York and Vancouver, British Columbia
         other than a Saturday, a Sunday or a day observed as a holiday in New
         York, New York under the Laws of the State of New York or the federal
         Laws of the United States of America or in 



                             COMBINATION AGREEMENT
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         Vancouver, British Columbia under the Laws of the Province of British
         Columbia or the federal Laws of Canada;

         "CALLCO" has the meaning ascribed thereto in the Preamble;

          "CBCA" means the Canada Business Corporations Act as now in effect and
         as it may be amended from time to time prior to the Effective Date;

         "CIRCULAR" means the notice of the Westcoast Meeting and accompanying
         management proxy circular, including all schedules and exhibits
         thereto, to be sent to the Westcoast Securityholders in connection with
         the Westcoast Meeting;

         "CODE" has the meaning ascribed thereto in Section 3.12(b);

         "CONFIDENTIALITY AGREEMENT" means the confidentiality letter agreement
         dated April 6, 2001 between Duke Energy and Westcoast;

         "COURT" means the Supreme Court of British Columbia;

         "CRMC" has the meaning ascribed thereto in Section 3.22;

         "DIRECTOR" means the Director appointed pursuant to Section 260 of the
         CBCA;

         "DISSENT RIGHTS" means the rights of dissent in respect of the
         Arrangement described in Section 3.1 of the Plan of Arrangement;

         "DUKE ENERGY" has the meaning ascribed thereto in the Preamble;

         "DUKE ENERGY COMMON SHARES" means the shares of common stock in the
         capital of Duke Energy;

         "DUKE ENERGY DISCLOSURE LETTER" means that certain letter of disclosure
         dated as of the date hereof and signed by an authorized officer of Duke
         Energy and delivered by Duke Energy to Westcoast on or prior to the
         date hereof;

         "DUKE ENERGY DOCUMENTS" has the meaning ascribed thereto in Section
         4.7(a);

         "DUKE ENERGY ENVIRONMENTAL PERMITS" has the meaning ascribed thereto in
         Section 4.9(b);

         "DUKE ENERGY PARTIES" has the meaning ascribed thereto in the Preamble;

         "DUKE ENERGY PERMITS" has the meaning ascribed thereto in Section
         4.11(b);

         "DUKE ENERGY SEC DOCUMENTS" has the meaning ascribed thereto in Section
         4.7(a); and

         "DUKE ENERGY STOCK PLANS" means Duke Energy's existing benefit or stock
         purchase plans which provide for the issuance, grant or sale of Duke
         Energy Common Shares or options to purchase Duke Energy Common Shares.


                             COMBINATION AGREEMENT
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<PAGE>   8

         "EASEMENTS" has the meaning ascribed thereto in Section 3.19(b);

         "EFFECTIVE DATE" means the date shown on the certificate of arrangement
         to be issued by the Director under the CBCA giving effect to the
         Arrangement provided that such date occurs on or prior to the date that
         is 365 days following the date hereof, or such later date as may be
         mutually agreed upon by the parties hereto;

         "EFFECTIVE TIME" has the meaning ascribed thereto in the Plan of
         Arrangement;

         "ENGAGE" has the meaning ascribed thereto in Section 3.22;

         "ENVIRONMENTAL LAWS" means all applicable Laws, including applicable
         common Law, relating to the protection of the environment (including,
         without limitation, air, surface water, groundwater and soil) and
         public health and safety;

         "ERISA" has the meaning ascribed thereto in Section 3.13(a);

         "EXCHANGE ACT" means the United States Securities Exchange Act of 1934,
         as amended;

         "EXCHANGE RATIO" has the meaning ascribed thereto in the Plan of
         Arrangement;

         "EXCHANGEABLE SHARES" means the non-voting exchangeable shares in the
         capital of Exchangeco, having substantially the rights, privileges,
         restrictions and conditions set out in Appendix 1 to the Plan of
         Arrangement;

         "EXCHANGECO" has the meaning ascribed thereto in the Preamble;

         "EXCLUDED ASSETS" means the assets identified as such in the Westcoast
         Disclosure Letter, being assets that Westcoast is in the process of
         disposing;

         "EXPENSE FEE" means a payment in the amount of $30 million;

         "FINAL ORDER" means the final order of the Court approving the
         Arrangement, as such order may be amended by the Court at any time
         prior to the Effective Date, or, if appealed, then, unless such appeal
         is withdrawn or denied, as affirmed;

         "FIRST PREFERRED SHARES" means the first preferred shares in the
         capital of Westcoast, including each series thereof designated and
         outstanding;

         "FORCE MAJEURE" means (i) an act of God, act of war, civil disturbance
         or other cause beyond such party's reasonable control and power to
         remedy or (ii) a strike or other labor dispute, scarcity of supplies or
         utilities or unavailability or disruption of transportation, which
         such party is not capable of resolving by an investment or the payment
         of a commercially reasonable amount of money;

         "FORM S-3" has the meaning ascribed thereto in Section 2.6(b);

         "FORM S-8" has the meaning ascribed thereto in Section 2.6(c);

         "GOVERNING DOCUMENTS" means, with respect to any person, the
         certificate or articles of incorporation, by-laws, articles of
         organization, limited liability company agreement, 



                             COMBINATION AGREEMENT
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         partnership agreement, formation agreement, joint venture agreement,
         unanimous shareholder agreement or declaration or other similar
         governing documents of such person;

         "GOVERNMENTAL ENTITY" means any (a) multinational, federal, provincial,
         territorial, state, regional, municipal, local or other government,
         governmental or public department, central bank, court, tribunal,
         arbitral body, commission, board, bureau or agency, domestic or
         foreign, (b) subdivision, agent, commission, board, or authority of any
         of the foregoing, or (c) quasi-governmental or private body exercising
         any regulatory, expropriation or taxing authority under, or for the
         account of, any of the foregoing;

         "HAZARDOUS SUBSTANCE" means any pollutant, contaminant, waste of any
         nature, petroleum, hazardous substance, hazardous material, toxic
         substance, dangerous substance or dangerous good, as defined or
         identified in or regulated by any Environmental Law;

         "HOLDERS" means, when used with reference to the Westcoast Common
         Shares, the holders of Westcoast Common Shares shown from time to time
         in the register maintained by or on behalf of Westcoast in respect of
         the Westcoast Common Shares and, when used with reference to the
         Exchangeable Shares, the holders of Exchangeable Shares shown from time
         to time in the register maintained by or on behalf of Exchangeco in
         respect of the Exchangeable Shares;

         "INTELLECTUAL PROPERTY RIGHTS" has the meaning ascribed thereto in
         Section 3.17(a);

         "INTERIM ORDER" means the interim order of the Court, as the same may
         be amended, in respect of the Arrangement, as contemplated by Section
         2.3;

         "KNOWLEDGE" means, with respect to either Duke Energy or Westcoast, the
         knowledge of any officer of such party after reasonable inquiry;
         provided that reasonable inquiry shall not require the inquiry of any
         third party or any Partially Owned Entity;

         "LAWS" means all statutes, regulations, statutory rules, orders,
         judgments, decrees and terms and conditions of any grant of approval,
         permission, authority, permit or license of any court, Governmental
         Entity, statutory body (including The Toronto Stock Exchange and The
         New York Stock Exchange) or self-regulatory authority;

         "MATERIAL ADVERSE EFFECT," when used in connection with Duke Energy or
         Westcoast, means any change, effect, event or occurrence with respect
         to its condition (financial or otherwise), properties, assets,
         liabilities, obligations (whether absolute, accrued, conditional or
         otherwise), businesses, operations or results of operations or those of
         its subsidiaries, or in the case of Westcoast, its Partially Owned
         Entities, that is, or would be reasonably expected to be, material and
         adverse to the current or future business, operations, regulatory
         status, financial condition or results of operations of Duke Energy or
         Westcoast, as the case may be, and its subsidiaries taken as a whole;
         provided, however, that a Material Adverse Effect shall not include
         with respect to any party, any change, effect, event or occurrence with
         respect to its condition (financial or otherwise), properties, assets,
         liabilities, obligations (whether absolute, accrued, conditional or 


                             COMBINATION AGREEMENT
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         otherwise), businesses, operations or results of operations of such
         party or any of its subsidiaries directly or indirectly arising out of
         or attributable to any decrease in the market price of Duke Energy
         Common Shares in the case of Duke Energy or Westcoast Common Shares in
         the case of Westcoast (but in either case not any change or effect
         underlying such decrease to the extent such change or effect would
         otherwise constitute a Material Adverse Effect on such party);

         "MATERIAL SUBSIDIARY" means a subsidiary (i) the assets of which exceed
         5% of the total assets of the ultimate parent corporation on a
         consolidated basis as at the end of the last completed fiscal year of
         the ultimate parent corporation or (ii) of which the ultimate parent
         corporation's direct or indirect equity interest in the income (before
         income taxes and extraordinary items) exceeds 5% of such income of the
         ultimate parent corporation on a consolidated basis during the last
         completed fiscal year of the ultimate parent corporation;

         "NET ENGAGE POSITION" has the meaning ascribed thereto in Section 3.22;

         "NUCLEAR STATIONS" has the meaning ascribed thereto in Section 4.10;

         "OPEN DUKE ENERGY POSITION" has the meaning ascribed thereto in Section
         4.13;

         "OSC" means the Ontario Securities Commission;

         "PARTIALLY OWNED ENTITY" means, with respect to a specified person, any
         corporation, partnership, joint venture, limited liability company,
         unlimited liability company, or other organization, incorporated or
         unincorporated, which is not a subsidiary of such specified person but
         in which such specified person, directly or indirectly, owns or
         controls 15% or more of the outstanding securities or other interests
         ordinarily entitled to vote in the election of the board of directors
         or other governing body thereof (or if there are no such voting
         securities or interests, 15% or more of the equity interest in such
         entity); provided that Maritimes & Northeast Pipeline and P.T.
         Puncakjaya Power are not Partially Owned Entities;

         "PERSON" includes any individual, firm, partnership, joint venture,
         venture capital fund, limited liability company, unlimited liability
         company, association, trust, trustee, executor, administrator, legal
         personal representative, estate, group, body corporate, corporation,
         unincorporated association or organization, Governmental Entity,
         syndicate or other entity, whether or not having legal status;

         "PLAN OF ARRANGEMENT" means the plan of arrangement substantially in
         the form and content of Schedule E annexed hereto and any amendments or
         variations thereto made in accordance with Section 7.1 hereof or
         Article 6 of the Plan of Arrangement or made at the direction of the
         Court in the Final Order;

         "PRE-EFFECTIVE DATE PERIOD" shall mean the period from and including
         the date hereof to and including the Effective Time on the Effective
         Date;

         "RATE CHANGE" has the meaning ascribed thereto in Section 5.1(a)(ix);


                             COMBINATION AGREEMENT
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         "REPLACEMENT OPTIONS" has the meaning ascribed thereto in the Plan of
         Arrangement;

         "REPRESENTATIVES" has the meaning ascribed thereto in Section 5.3(a);

         "SEC" means the United States Securities and Exchange Commission;

         "SECOND PREFERRED SHARES" means the second preferred shares in the
         capital of Westcoast;

         "SECURITIES ACT" means the Securities Act (Ontario) and the rules,
         regulations and policies made thereunder, as now in effect and as they
         may be amended from time to time prior to the Effective Date;

         "SUBSIDIARY" means with respect to a specified person, (a) any
         corporation, partnership, joint venture, limited liability company,
         unlimited liability company or other organization, incorporated or
         unincorporated, which is a subsidiary as defined in the Securities Act
         of such specified person or (b) a partnership of which such specified
         person or another of its subsidiaries is a general partner or owns
         beneficially more than 50% of the ownership interests;

         "SUPERIOR PROPOSAL" means any bona fide written proposal by a third
         party, directly or indirectly, to acquire assets representing more than
         50% of the book value (on a consolidated basis) of Westcoast's total
         assets or more than 50% of the Westcoast Common Shares, whether by way
         of merger, amalgamation, arrangement, share exchange, take-over bid,
         recapitalization, sale of assets or otherwise, and that in the good
         faith determination of the Board of Directors of Westcoast (based upon
         advice from its financial advisors and outside legal counsel) (a) is
         reasonably capable of being completed without undue delay, taking into
         account all legal, financial, regulatory and other aspects of such
         proposal and the party making such proposal, and (b) would, if
         consummated in accordance with its terms, result in a transaction more
         favourable to Westcoast's Securityholders from a financial point of
         view than the transaction contemplated by this Agreement (including any
         adjustment to the terms and conditions proposed by Duke Energy as
         contemplated by Section 5.6(b));

         "SUPPORT AGREEMENT" means an agreement to be made between Westcoast,
         Duke Energy, Callco and Exchangeco substantially in the form and
         content of Schedule F annexed hereto, with such changes thereto as the
         parties hereto, acting reasonably, may agree;

         "TAX" and "TAXES" have the respective meanings ascribed thereto in
         Section 3.12(c);

         "TAX RETURNS" means all returns, declarations, reports, information
         returns and statements filed or required to be filed with any taxing
         authority relating to Taxes;

         "TERMINATION FEE" means a fee equal to $120 million;

         "TRUSTEE" means the trustee to be chosen by Duke Energy and Westcoast,
         acting reasonably, to act as trustee under the Voting and Exchange
         Trust Agreement, being a 



                             COMBINATION AGREEMENT
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         corporation organized and existing under the Laws of the State of New
         York or Delaware and authorized to carry on the business of a trust
         company, and any successor trustee appointed under the Voting and
         Exchange Trust Agreement;

         "UEI CONVERSION NOTICE" has the meaning ascribed thereto in Section
         5.9(b);

         "VOTING AND EXCHANGE TRUST AGREEMENT" means an agreement to be made
         between Duke Energy, Exchangeco and the Trustee in connection with the
         Plan of Arrangement substantially in the form and content of Schedule G
         annexed hereto, with such changes thereto as the parties hereto, acting
         reasonably, may agree;

         "WESTCOAST" has the meaning ascribed thereto in the Preamble;

         "WESTCOAST COMMON SHARES" means the issued and outstanding common
         shares in the capital of Westcoast, including the associated rights
         under the Westcoast Rights Plan;

         "WESTCOAST DISCLOSURE LETTER" means that certain letter of disclosure
         dated as of the date hereof and signed by an authorized officer of
         Westcoast and delivered by Westcoast to Duke Energy on or prior to the
         date hereof;

         "WESTCOAST DIVIDEND REINVESTMENT PLAN" means the plan of Westcoast
         existing on the date hereof pursuant to which holders of Westcoast
         Common Shares may elect to receive dividends in equivalent value of
         Westcoast Common Shares in lieu of cash and may make purchases of
         Westcoast Common Shares;

         "WESTCOAST DOCUMENTS" has the meaning ascribed thereto in Section
         3.8(a);

         "WESTCOAST EMPLOYEE SHARE PURCHASE PLANS" means the share purchase
         plans for Westcoast employees in Canada (whether registered or
         unregistered) and the share purchase plans, if any, for Westcoast
         employees in the United States, in each case, as amended;

         "WESTCOAST ENVIRONMENTAL PERMITS" has the meaning ascribed thereto in
         Section 3.11(b);

         "WESTCOAST MEETING" means the special meeting of Westcoast
         Securityholders, including any adjournment, adjournments, postponement
         or postponements thereof, to be called and held in accordance with the
         Interim Order to consider the Arrangement and the Westcoast Rights Plan
         Waiver Resolution;

         "WESTCOAST OPTIONS" means the Westcoast Common Share purchase options
         granted under the Westcoast Stock Option Plans;

         "WESTCOAST PERMITS" has the meaning ascribed thereto in Section
         3.15(b);

         "WESTCOAST PIPELINE ASSETS" has the meaning ascribed thereto in Section
         3.19(a);

         "WESTCOAST PLANS" has the meaning ascribed thereto in Section 3.13(a);


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         "WESTCOAST RIGHTS PLAN" means the shareholder rights plan of Westcoast
         established pursuant to the Shareholders Rights Plan Agreement dated as
         of April 26, 2000 between Westcoast and Computershare Trust Company of
         Canada (previously called Montreal Trust Company of Canada);

         "WESTCOAST RIGHTS PLAN WAIVER RESOLUTION" means the ordinary resolution
         of the holders of Westcoast Common Shares to be substantially in the
         form and content of Schedule D annexed hereto;

         "WESTCOAST SEC REPORTS" has the meaning ascribed thereto in Section
         3.8(a);

         "WESTCOAST SECURITYHOLDERS" means the holders of Westcoast Common
         Shares and the holders of Westcoast Options, collectively;

         "WESTCOAST SRA REPORTS" has the meaning ascribed thereto in Section
         3.8(a);

         "WESTCOAST STOCK OPTION PLANS" means Westcoast's Long-Term Incentive
         Share Option Plan 1989, as amended effective April 26, 2000 and
         Westcoast's 1999 Key Employee Plan;

1.2      INTERPRETATION NOT AFFECTED BY HEADINGS, ETC.

         The division of this Agreement into articles, sections and other
portions and the insertion of headings are for convenience of reference only and
shall not affect the construction or interpretation hereof. Unless otherwise
indicated, all references to an "Article" or "Section" followed by a number or a
letter refer to the specified Article or Section of this Agreement. The terms
"this Agreement," "hereof," "herein" and "hereunder" and similar expressions
refer to this Agreement (including the Schedules hereto) and not to any
particular Article, Section or other portion hereof.

1.3      RULES OF CONSTRUCTION

         Unless otherwise specifically indicated or the context otherwise
requires, (a) all references to "dollars" or "$" mean United States dollars, (b)
words importing the singular shall include the plural and vice versa and words
importing any gender shall include all genders, and (c) "include," "includes"
and "including" shall be deemed to be followed by the words "without
limitation."

1.4      DATE FOR ANY ACTION

         In the event that any date on which any action is required to be taken
hereunder by any of the parties hereto is not a Business Day, such action shall
be required to be taken on the next succeeding day that is a Business Day.

1.5      SCHEDULES

         The following Schedules are annexed to this Agreement and are hereby
incorporated by reference into this Agreement and form part hereof:


                             COMBINATION AGREEMENT
                                       9
<PAGE>   14

         Schedule A -- Form of Affiliate's Letter 
         Schedule B -- Appropriate Regulatory Approvals 
         Schedule C -- Form of Arrangement Resolution 
         Schedule D -- Form of Westcoast Rights Plan Waiver Resolution 
         Schedule E -- Form of Plan of Arrangement 
         Schedule F -- Form of Support Agreement 
         Schedule G -- Form of Voting and Exchange Trust Agreement

                                    ARTICLE 2

                                 THE ARRANGEMENT

2.1      IMPLEMENTATION STEPS BY WESTCOAST

         Westcoast covenants in favour of the Duke Energy Parties that Westcoast
shall:

         (a) as soon as reasonably practicable, apply in a manner acceptable to
             the Duke Energy Parties, acting reasonably, under Section 192 of
             the CBCA for an order approving the Arrangement and for the Interim
             Order, and thereafter proceed with and diligently seek the Interim
             Order;

         (b) lawfully convene and hold the Westcoast Meeting for the purpose of
             considering the Arrangement Resolution and the Westcoast Rights
             Plan Waiver Resolution (and for no other purpose unless agreed to
             by Duke Energy) as soon as reasonably practicable and use its
             reasonable efforts to convene and hold the Westcoast Meeting on or
             before December 15, 2001, subject to adjournments or postponements
             which may be required pursuant to Section 5.6(a);

         (c) subject to obtaining the approvals as are required by the Interim
             Order, proceed with and diligently pursue the application to the
             Court for the Final Order; and

         (d) subject to obtaining the Final Order and the satisfaction or waiver
             of the other conditions herein contained in favour of each party,
             send to the Director, for endorsement and filing by the Director,
             the Articles of Arrangement and such other documents as may be
             required in connection therewith under the CBCA to give effect to
             the Arrangement.

2.2      IMPLEMENTATION STEPS BY DUKE ENERGY PARTIES

         The Duke Energy Parties covenant in favour of Westcoast that, on or
prior to the Effective Date and subject to the satisfaction or waiver of the
conditions herein contained in favour of each such party:

         (a) Duke Energy, Callco and Exchangeco shall execute and deliver the
             Support Agreement;

         (b) Duke Energy and Exchangeco shall execute and deliver the Voting and
             Exchange Trust Agreement; and


                             COMBINATION AGREEMENT
                                       10
<PAGE>   15

         (c) Duke Energy shall issue to the Trustee such number of Duke Energy
             Common Shares as required by the Voting and Exchange Trust 
             Agreement.

2.3      INTERIM ORDER

         The notice of motion for the application referred to in Section 2.1(a)
shall request that the Interim Order provide, among other things:

         (a) for the class of persons to whom notice is to be provided in
             respect of the Arrangement and the Westcoast Meeting and for the
             manner in which such notice is to be provided;

         (b) that the requisite approval for the Arrangement Resolution shall be
             66 2/3% of the votes cast on the Arrangement Resolution by
             Westcoast Securityholders, voting together as a single class,
             present in person or by proxy at the Westcoast Meeting (such that
             each holder of Westcoast Common Shares is entitled to one vote for
             each Westcoast Common Share held and each holder of Westcoast
             Options is entitled to one vote for each Westcoast Common Share
             such holder of Westcoast Options would have received on a valid
             exercise of Westcoast Options);

         (c) that, in all other respects, the terms, restrictions and conditions
             of the governing documents of Westcoast, including quorum
             requirements and all other matters, shall apply in respect of the
             Westcoast Meeting; and

         (d) for the grant of the Dissent Rights.

2.4      ARTICLES OF ARRANGEMENT

         The Articles of Arrangement shall, together with such other matters as
are necessary to effect the Arrangement, implement the Plan of Arrangement, as a
result of which, among other things, each holder of Westcoast Common Shares will
be entitled to receive (a) the number of Exchangeable Shares per Westcoast
Common Share equal to the Exchange Ratio, (b) the number of Duke Energy Common
Shares per Westcoast Common Share equal to the Exchange Ratio, (c) Cdn$43.80 in
cash, without interest, per Westcoast Common Share, or (d) a combination
thereof, at the option of the holder, subject, in each case to proration in a
manner as may be determined by Duke Energy to provide that approximately 50% of
the aggregate consideration to be received by holders of Westcoast Common Shares
will consist of cash and approximately 50% will consist of Exchangeable Shares
and Duke Energy Common Stock.

2.5      WESTCOAST CIRCULAR

         As promptly as reasonably practicable, Westcoast shall prepare the
Circular together with any other documents required by the Securities Act, the
CBCA or other applicable Laws in connection with the approval of the Arrangement
by the Westcoast Securityholders and Westcoast shall give Duke Energy timely
opportunity to review and comment on all such documentation and all such 


                             COMBINATION AGREEMENT
                                       11
<PAGE>   16
documentation shall be reasonably satisfactory to Duke Energy before it is filed
or distributed to Westcoast Securityholders; provided, that Duke Energy will
provide Westcoast with its comments and any proposed additions and deletions
within five Business Days after each receipt of a draft Circular from Westcoast.
If Duke Energy shall have advised Westcoast in writing of matters required
pursuant to Section 5.2(b)(ii) prior to the Westcoast Meeting, Westcoast shall
disclose such matters in the Circular (including by amendment or supplement to
the Circular if the Circular shall have been previously filed or distributed)
and such disclosure shall be reasonably satisfactory to Duke Energy before it is
filed or distributed to Westcoast Securityholders. As promptly as practicable
after obtaining the Interim Order, Westcoast shall cause the Circular and other
documentation required in connection with the Westcoast Meeting to be sent to
each Westcoast Securityholder and filed as required by the Interim Order and
applicable Laws, and Westcoast will use its reasonable efforts to cause the
Circular to be sent to each Westcoast Securityholder and filed as required by
the Interim Order and applicable Laws on or before November 15, 2001.

2.6      SECURITIES COMPLIANCE

         (a) Duke Energy and Westcoast shall use reasonable best efforts to
             obtain all orders required from the applicable Canadian
             Governmental Entities to permit the issuance and first resale of
             (i) the Exchangeable Shares and Duke Energy Common Shares issuable
             pursuant to the Arrangement, (ii) the Duke Energy Common Shares
             issuable upon exchange of the Exchangeable Shares from time to
             time, and (iii) the Duke Energy Common Shares issuable from time to
             time upon the exercise of the Replacement Options, in each case
             without qualification with, or approval of, or the filing of any
             prospectus or similar document, or the taking of any proceeding
             with, or the obtaining of any further order, ruling or consent
             from, any Canadian Governmental Entity under any Canadian federal,
             provincial or territorial securities or other Laws or pursuant to
             the rules and regulations of any Governmental Entity administering
             such Laws, or the fulfillment of any other legal requirement in any
             such jurisdiction (other than, with respect to such first resales,
             any restrictions on transfer by reason of, among other things, a
             holder being a "control person" for purposes of Canadian federal,
             provincial or territorial securities Laws).

         (b) Duke Energy shall file a registration statement on Form S-3 (or
             other applicable form) (the "Form S-3") in order to register under
             the 1933 Act the Duke Energy Common Shares issuable from time to
             time after the Effective Time upon exchange of the Exchangeable
             Shares and shall use its reasonable best efforts to cause the Form
             S-3 to become effective and to maintain the effectiveness of such
             registration until the date on which no Exchangeable Shares remain
             outstanding (other than those Exchangeable Shares held by Duke
             Energy or any of its affiliates).

         (c) As promptly as practicable after the Effective Date, Duke Energy
             shall file a registration statement on Form S-8 (or other
             applicable form) (the "Form S-8") in order to register under the
             1933 Act those Duke Energy Common Shares issuable from time to time
             after the Effective Time upon the exercise of the Replacement
             Options.

         (d) Duke Energy and Westcoast shall take all such steps as may be
             required to cause the transactions contemplated by this Article 2
             and any other dispositions of Westcoast



                             COMBINATION AGREEMENT
                                       12
<PAGE>   17

             equity securities or acquisitions of Duke Energy equity securities
             (including, in each case derivative securities) in connection with
             this Agreement or the transactions contemplated hereby by any
             individual who is a director or officer of Westcoast, to be exempt
             under Rule 16b-3 promulgated under the Exchange Act.

2.7      PREPARATION OF FILINGS

         (a) Duke Energy and Westcoast shall cooperate in:

             (i)   the preparation of any application for the orders and the
                   preparation of any required registration statements and any
                   other documents reasonably deemed by Duke Energy or Westcoast
                   to be necessary to discharge their respective obligations
                   under United States and Canadian federal, provincial,
                   territorial or state securities Laws in connection with the
                   Arrangement and the other transactions contemplated hereby;

             (ii)  the taking of all such action as may be required under any
                   applicable United States and Canadian federal, provincial,
                   territorial or state securities Laws (including "blue sky
                   laws") in connection with the issuance of the Exchangeable
                   Shares and the Duke Energy Common Shares in connection with
                   the Arrangement or the exercise of the Replacement Options;
                   provided, however, that with respect to the United States
                   "blue sky" and Canadian provincial qualifications neither
                   Duke Energy nor Westcoast shall be required to register or
                   qualify as a foreign corporation or to take any action that
                   would subject it to service of process in any jurisdiction
                   where such entity is not now so subject, except as to matters
                   and transactions arising solely from the offer and sale of
                   the Exchangeable Shares and the Duke Energy Common Shares;
                   and

             (iii) the taking of all such action as may be required under the
                   CBCA in connection with the transactions contemplated by this
                   Agreement and the Plan of Arrangement.

         (b) Each of Duke Energy and Westcoast shall promptly furnish to the
             other all information concerning it and its security holders as may
             be required for the effectuation of the actions described in
             Sections 2.5 and 2.6 and the foregoing provisions of this Section
             2.7, and each covenants that no information furnished by it (to its
             knowledge in the case of information concerning its shareholders)
             in connection with such actions or otherwise in connection with the
             consummation of the Arrangement and the other transactions
             contemplated by this Agreement will contain any misrepresentation
             (as defined in the Securities Act) or any untrue statement of a
             material fact or omit to state a material fact required to be
             stated in any such document or necessary in order to make any
             information so furnished for use in any such document not
             misleading in the light of the circumstances in which it is
             furnished.


                             COMBINATION AGREEMENT
                                       13
<PAGE>   18

         (c) Each of Duke Energy and Westcoast shall promptly notify the other
             if at any time before or after the Effective Time it becomes aware
             that the Circular or an application for an order or a registration
             statement described in Section 2.6 contains any misrepresentation
             (as defined in the Securities Act) or any untrue statement of a
             material fact or omits to state a material fact required to be
             stated therein or necessary to make the statements contained
             therein not misleading in light of the circumstances in which they
             are made, or that otherwise requires an amendment or supplement to
             the Circular or such application or registration statement. In any
             such event, Duke Energy and Westcoast shall cooperate in the
             preparation of a supplement or amendment to the Circular or such
             other document, as required and as the case may be, and, if
             required, shall cause the same to be distributed to the Westcoast
             Securityholders or filed with the relevant securities regulatory
             authorities.

         (d) Westcoast shall ensure that the Circular complies with all
             applicable Laws and, without limiting the generality of the
             foregoing, that the Circular does not contain any misrepresentation
             (as defined in the Securities Act) or any untrue statement of a
             material fact or omit to state a material fact required to be
             stated therein or necessary to make the statements contained
             therein not misleading in light of the circumstances in which they
             are made (other than with respect to any information relating to
             and provided by the Duke Energy Parties). Without limiting the
             generality of the foregoing, Westcoast shall ensure that the
             Circular complies with OSC Rule 54-501 and provides Westcoast
             Securityholders with information in sufficient detail to permit
             them to form a reasoned judgment concerning the matters to be
             placed before them at the Westcoast Meeting.

         (e) Duke Energy shall ensure that the Form S-3 and Form S-8 comply with
             all applicable Laws and, without limiting the generality of the
             foregoing, that such documents do not contain any untrue statement
             of a material fact or omit to state a material fact required to be
             stated therein or necessary to make the statements contained
             therein not misleading in light of the circumstances in which they
             are made (other than with respect to any information relating to
             and provided by Westcoast).

                                   ARTICLE 3

                   REPRESENTATIONS AND WARRANTIES OF WESTCOAST

         Westcoast represents and warrants to the Duke Energy Parties as follows
in each case except as set forth in the Westcoast Disclosure Letter (each of
which exceptions shall specifically identify the relevant section hereof to
which it relates):

3.1      ORGANIZATION AND STANDING

         (a) Each of Westcoast and its subsidiaries has been duly organized or
             formed and is validly existing under the Laws of its jurisdiction
             of organization or formation with full corporate or legal power and
             authority to own, lease and operate its properties and to conduct
             its businesses as currently owned and conducted except where,
             individually or in the aggregate, the failure of a subsidiary other
             than a Material



                             COMBINATION AGREEMENT
                                       14
<PAGE>   19

             Subsidiary to be so organized, formed or existing or to have such
             power or authority would not have a Material Adverse Effect on
             Westcoast. Each of Westcoast and its subsidiaries is duly qualified
             to do business in each jurisdiction in which the nature of the
             business conducted by it or the ownership or leasing of its
             properties requires it to so qualify, except where, individually or
             in the aggregate, the failure to be so qualified would not have a
             Material Adverse Effect on Westcoast.

         (b) Section 3.1 of the Westcoast Disclosure Letter sets forth, as of
             the date hereof, a true and complete list of each of Westcoast's
             subsidiaries and Partially Owned Entities, together with (i) the
             nature of the legal organization of such person, (ii) the
             jurisdiction of organization or formation of such person, (iii) the
             name of each Westcoast related person that owns beneficially or of
             record any equity or similar interest in such person, and (iv) the
             percentage interest owned by Westcoast or any of its subsidiaries
             in such person. Neither Westcoast nor any of its subsidiaries is
             subject to any obligation in excess of $10 million to provide funds
             to or make any investment in (in the form of a loan, capital
             contribution or otherwise) any subsidiary, Partially Owned Entity
             or other person other than Westcoast or a wholly owned subsidiary
             of Westcoast.

         (c) Westcoast has heretofore made available to Duke Energy complete and
             correct copies of its governing documents as well as the governing
             documents of each of its subsidiaries and Partially Owned Entities,
             in each case as in effect on the date hereof.

3.2      CAPITALIZATION

         (a) The authorized capital of Westcoast consists of (i) an unlimited
             number of First Preferred Shares and Second Preferred Shares, each
             issuable in series, and (ii) an unlimited number of Westcoast
             Common Shares and there were 4,588,687 First Preferred Shares,
             Series 2, 8,000,000 First Preferred Shares, Series 5, 5,000,000
             First Preferred Shares, Series 6, 6,000,000 First Preferred Shares,
             Series 7, 6,000,000 First Preferred Shares, Series 8, and 5,000,000
             First Preferred Shares, Series 9, issued and outstanding and no
             Second Preferred Shares issued and outstanding as of September 15,
             2001. As of September 15, 2001, there were 123,400,430 Westcoast
             Common Shares issued and outstanding and no Westcoast Common Shares
             held in its treasury or by any subsidiary of Westcoast. As of
             August 31, 2001, there were outstanding Westcoast Options
             permitting the holders thereof to purchase 5,092,893 Westcoast
             Common Shares in the aggregate. As of August 31, 2001, there were
             1,984,469 Westcoast Common Shares reserved for issuance under the
             Westcoast Stock Option Plans. As of July 31, 2001, there were
             5,900,587 Westcoast Common Shares reserved for issuance under the
             Westcoast Dividend Reinvestment Plan. From September 15, 2001 to
             the date hereof, no First Preferred Shares, Second Preferred Shares
             or Westcoast Common Shares have been issued by Westcoast or
             purchased by Westcoast or any of its subsidiaries; from July 31,
             2001 to the date hereof, no First Preferred Shares, Second
             Preferred Shares or Westcoast Common Shares have been reserved by
             Westcoast; and from August 31, 2001 to the date hereof no Westcoast
             Options have been granted.

         (b) All of the Westcoast Common Shares and First Preferred Shares have
             been duly authorized and are validly issued and fully paid and
             non-assessable, were not issued in violation of pre-emptive or
             similar rights or any other agreement or understanding



                             COMBINATION AGREEMENT
                                       15
<PAGE>   20

             binding upon Westcoast and were issued in compliance with the CBCA,
             all applicable securities Laws and the governing documents of
             Westcoast. All of the outstanding shares and other ownership
             interests of the subsidiaries, the Partially Owned Entities of
             Westcoast, Maritimes & Northeast Pipeline and P.T. Puncakjaya Power
             which are held, directly or indirectly, by Westcoast have been (to
             the knowledge of Westcoast in the case of Partially Owned Entities,
             Maritimes & Northeast Pipeline and P.T. Puncakjaya Power) duly
             authorized and are validly issued, fully paid and non-assessable,
             were not issued in violation of pre-emptive or similar rights and
             all such shares and other ownership interests are owned directly or
             indirectly by Westcoast, free and clear of all liens, claims or
             encumbrances, except for restrictions on transfers contained in
             governing documents and except where, individually or in the
             aggregate, the failure of the shares or ownership interest in a
             subsidiary other than a Material Subsidiary to be so authorized or
             issued or owned free and clear would not have a Material Adverse
             Effect on Westcoast.

         (c) Except as described in Section 3.2(a) above, as of the date hereof,
             there are no outstanding options, warrants, subscriptions, puts,
             calls or other rights, agreements, arrangements or commitments
             (pre-emptive, contingent or otherwise) obligating Westcoast or any
             of its subsidiaries to offer, issue, sell, redeem, repurchase,
             otherwise acquire or transfer, pledge or encumber any capital stock
             of Westcoast, any of its subsidiaries, Partially Owned Entities,
             Maritimes & Northeast Pipeline or P.T. Puncakjaya Power nor are
             there outstanding any securities or obligations of any kind of
             Westcoast or any of its subsidiaries which are convertible into or
             exerciseable or exchangeable for any capital stock of Westcoast,
             any of its subsidiaries or any other person and neither Westcoast
             nor any of its subsidiaries or, to the knowledge of Westcoast, any
             of its Partially Owned Entities has any obligation of any kind to
             issue any additional securities or to pay for or repurchase any
             securities. There are not outstanding as of the date hereof any
             stock appreciation rights, phantom equity or similar rights,
             agreements, arrangements or commitments based upon the book value,
             income or any other attribute of Westcoast or any of its
             subsidiaries. There are no outstanding bonds, debentures or other
             evidences of indebtedness of Westcoast or any of its subsidiaries
             having the right to vote (or that are exchangeable or convertible
             for or exercisable into securities having the right to vote) with
             the holders of the Westcoast Common Shares on any matter. As of the
             date hereof, there are no stockholder agreements, proxies, voting
             trusts, rights to require registration under securities Laws or
             other arrangements or commitments to which Westcoast or any of its
             subsidiaries is a party or bound with respect to the voting,
             disposition or registration of any outstanding securities of
             Westcoast, any of its subsidiaries or any of its Partially Owned
             Entities.

         (d) Since June 30, 2001, except for issuances of Westcoast Common
             Shares pursuant to Westcoast Options granted prior to the date
             hereof, pursuant to the Westcoast Dividend Reinvestment Plan and
             upon conversion of First Preferred Shares pursuant to their terms,
             there have been no Westcoast capital stock, voting securities or
             securities convertible or exchangeable therefor issued or purchased
             for cancellation.


                             COMBINATION AGREEMENT
                                       16
<PAGE>   21

3.3      AUTHORITY AND NO CONFLICTS

         (a) Westcoast has all requisite corporate power and authority to enter
             into this Agreement and to perform its obligations hereunder and to
             consummate the transactions contemplated hereby, subject to the
             approval of Westcoast's Securityholders and the Court as provided
             in this Agreement with respect to the Plan of Arrangement. The
             execution and delivery of this Agreement by Westcoast and the
             consummation by Westcoast of the transactions contemplated by this
             Agreement have been duly and validly authorized by all necessary
             corporate action and no other corporate proceedings on the part of
             Westcoast are necessary to authorize this Agreement or to
             consummate the transactions contemplated hereby other than, with
             respect to the Westcoast Rights Plan Waiver Resolution, approval of
             the holders of Westcoast Common Shares and with respect to the
             completion of the Arrangement, the approval of the Westcoast
             Securityholders and the Court and the filing of such corporate
             documents under the CBCA as are provided for in this Agreement.

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

         (c) The Board of Directors of Westcoast at a meeting duly called and
             held has determined by the unanimous approval of all directors
             voting (A) that this Agreement and the transactions contemplated
             hereby, including the Arrangement and the Westcoast Rights Plan
             Waiver Resolution, are fair to the Westcoast Securityholders and
             are in the best interests of Westcoast and (B) to recommend that
             the Westcoast Securityholders vote in favour of the Arrangement and
             the Westcoast Rights Plan Waiver Resolution.

         (d) Neither the execution and delivery of this Agreement by Westcoast
             nor the performance by it of its obligations hereunder and the
             completion of the transactions contemplated hereby, will:

             (i)   conflict with, or violate any provision of, the governing
                   documents of Westcoast or any of its subsidiaries or
                   Partially Owned Entities;

             (ii)  subject to the consents, approvals, orders, authorizations,
                   registrations, declarations or filings referred to in Section
                   3.4 being made or obtained, violate or breach any Laws
                   applicable to Westcoast, any of its subsidiaries or, to the
                   knowledge of Westcoast, any of its Partially Owned Entities;

             (iii) subject to the consents, approvals, orders, authorizations,
                   registrations, declarations or filings referred to in Section
                   3.4 being made or obtained, violate or conflict with or
                   result in the breach of, or constitute a default (or an event
                   that with the giving of notice, the passage of time, or both
                   would constitute a default) under, or entitle any party (with
                   the giving of notice, the



                             COMBINATION AGREEMENT
                                       17
<PAGE>   22

                   passage of time or both) to terminate, accelerate, modify or
                   call any obligations or rights under any credit agreement,
                   note, bond, mortgage, indenture, deed of trust, contract,
                   agreement, lease, license, franchise, permit, concession,
                   easement or other instrument to which Westcoast or any of
                   its subsidiaries or, to the knowledge of Westcoast, any of
                   its Partially Owned Entities is a party or by which
                   Westcoast or any of its subsidiaries or, to the knowledge of
                   Westcoast, any of its Partially Owned Entities or its or
                   their property is bound or subject; or

             (iv)  result in the imposition of any encumbrance, charge or lien
                   upon or require the sale or give any person the right to
                   acquire any of Westcoast's assets or the assets of any of its
                   subsidiaries or, to the knowledge of Westcoast, any of its
                   Partially Owned Entities, or restrict, hinder, impair or
                   limit the ability of Westcoast, or any of its subsidiaries
                   or, to the knowledge of Westcoast, any of its Partially Owned
                   Entities to carry on the business of Westcoast, any of its
                   subsidiaries or any of its Partially Owned Entities as and
                   where it is now being carried on;

         except in the case of clauses (ii) through (iv) for any of the
         foregoing that would not, individually or in the aggregate, have a
         Material Adverse Effect on Westcoast or materially impair the ability
         of Westcoast to perform its obligations hereunder or prevent or
         materially delay the consummation of any of the transactions
         contemplated hereby.

3.4      CONSENTS; APPROVALS

         No consent, approval, order or authorization of, or registration,
declaration or filing with, any third party or Governmental Entity is required
by or with respect to Westcoast, any of its subsidiaries or, to the knowledge of
Westcoast, any of its Partially Owned Entities in connection with the execution
and delivery of this Agreement by Westcoast, the performance of its obligations
hereunder or the consummation by Westcoast of the transactions contemplated
hereby other than (a) any approvals required by the Interim Order, (b) the Final
Order, (c) the approval of the Arrangement by the Westcoast Securityholders, (d)
such registrations and other actions required under federal, state, provincial,
and territorial securities Laws as are contemplated by this Agreement, (e) any
filings with the Director under the CBCA, (f) the Appropriate Regulatory
Approvals relating to Westcoast and to the extent required, the New York Public
Services Commission, and (g) any other consents, approvals, orders,
authorizations, registrations, declarations or filings which, if not obtained or
made, would not, individually or in the aggregate, have a Material Adverse
Effect on Westcoast or prevent or materially delay the consummation of any of
the transactions contemplated hereby or materially impair Westcoast's ability to
perform its obligations hereunder.

3.5      NO DEFAULTS

         None of Westcoast or any of its Material Subsidiaries or, to the
knowledge of Westcoast, any of its Partially Owned Entities or any other party
thereto, is in default under or violation of, and there has been no event,
condition or occurrence which, after notice or lapse of time or both, would
constitute such a default or violation of, or permit the termination of, any
term, condition 



                             COMBINATION AGREEMENT
                                       18
<PAGE>   23

or provision of (a) their respective governing documents, (b) any credit
agreement, note, bond, mortgage, indenture, contract, agreement, lease, license,
franchise, permit, concession, easement or other instrument to which Westcoast
or any of its subsidiaries or, to the knowledge of Westcoast, any of its
Partially Owned Entities, is a party or by which Westcoast, any of its
subsidiaries or, to the knowledge of Westcoast, any of its Partially Owned
Entities, or any of its or their property is bound or subject, except, in the
case of clause (b), defaults, violations and terminations which, individually or
in the aggregate, would not have a Material Adverse Effect on Westcoast.

3.6      ABSENCE OF CERTAIN CHANGES OR EVENTS

         (a) Except as disclosed in the Westcoast SRA Reports or Westcoast SEC
             Reports filed prior to the date hereof, since December 31, 2000,
             Westcoast, its subsidiaries and, to the knowledge of Westcoast, its
             Partially Owned Entities, have conducted their respective
             businesses only in the ordinary course in a manner consistent with
             past practice and there has been no Material Adverse Effect with
             respect to Westcoast or any event, occurrence or development which
             would be reasonably expected to have a Material Adverse Effect on
             Westcoast or which materially and adversely affects the ability of
             Westcoast to consummate the transactions contemplated hereby.

         (b) Except as disclosed in the Westcoast SRA Reports or Westcoast SEC
             Reports filed prior to the date hereof, since December 31, 2000,
             none of Westcoast or any of its subsidiaries, or, to the knowledge
             of Westcoast, its Partially Owned Entities, has engaged in any
             conduct that is proscribed during the Pre-Effective Date Period by
             Section 5.1.

3.7      EMPLOYMENT MATTERS

         (a) Except as set forth in the management proxy circular prepared in
             connection with the Annual Meeting of Westcoast held on April 25,
             2001 or Section 3.7 of the Westcoast Disclosure Letter, neither
             Westcoast nor any of its subsidiaries is a party to any written or
             oral policy, agreement, obligation or understanding providing for
             severance or termination payments to, or any employment agreement
             with, any former or current director, officer or employee other
             than any agreement which applies to only one individual and which
             does not provide for payment to such individual in excess of
             $150,000 in any one calendar year and other than as required by
             applicable Law for employees without agreements as to notice or
             severance or pursuant to collective bargaining agreements.

         (b) Neither Westcoast nor any of its subsidiaries is a party to any
             consulting contract, written or oral, providing for compensation of
             any individual in excess of $350,000 per calendar year.

         (c) Neither Westcoast nor any of its subsidiaries has agreed to
             recognize any union or other collective bargaining representative,
             nor has any union or other collective bargaining representative
             been certified as the exclusive bargaining representative of any of
             Westcoast's or any of its subsidiaries' employees. No labor union
             or



                             COMBINATION AGREEMENT
                                       19
<PAGE>   24

             representative of the employees of Westcoast or any of its
             subsidiaries claims to be seeking to represent employees of
             Westcoast or any of its subsidiaries other than those that are
             parties to executed collective bargaining agreements identified in
             Section 3.7 of the Westcoast Disclosure Letter. To the knowledge of
             Westcoast, no union organizational campaign or representation
             petitions are currently pending with respect to any of the
             employees of Westcoast or any of its subsidiaries or Partially
             Owned Entities. Neither Westcoast nor any of its subsidiaries is a
             party to, or bound by, any collective bargaining agreement or any
             other labor contract applicable to any employees of Westcoast or
             its subsidiaries. All collective bargaining agreements to which
             Westcoast is a party have been duly ratified and there are no
             written or oral agreements which modify the terms of any such
             collective bargaining agreement. No collective bargaining
             agreements or other labor contracts relating to employees of
             Westcoast or its subsidiaries are being negotiated. To the
             knowledge of Westcoast, neither Westcoast nor any of its
             subsidiaries have breached any of their obligations under any
             collective bargaining agreements that would have a Material Adverse
             Effect on Westcoast. There is no labor strike or labor dispute,
             slowdown, lockout or stoppage actually pending or threatened
             against or affecting Westcoast or its subsidiaries, individually or
             in the aggregate, that would be reasonably expected to have a
             Material Adverse Effect on Westcoast, and Westcoast and its
             subsidiaries have not experienced any labor strikes or labor
             disputes, slowdowns, lockouts or stoppages since December 31, 1998,
             that had a Material Adverse Effect on Westcoast. To the knowledge
             of Westcoast, no union or collective bargaining representative has
             applied to have Westcoast or any of its subsidiaries declared a
             related or successor employer pursuant to applicable labor Laws.

         (d) All employees and former employees of Westcoast and its
             subsidiaries have been, or will have been on or before the
             Effective Date, paid or amounts in respect thereof shall have been
             accrued for wages, salaries, commissions, bonuses, vacation pay,
             severance and termination pay, sick pay, and other compensation for
             all services performed by them or that was accrued by them up to
             the Effective Date, in accordance with the obligations of Westcoast
             and its subsidiaries under any employment or labor practices and
             policies or any collective bargaining agreement or individual
             agreement to which Westcoast or its subsidiaries is a party, or by
             which Westcoast or its subsidiaries may be bound, except for, in
             the case of severance and termination pay, statutory and common law
             requirements for payment in lieu of reasonable notice of
             termination.

         (e) There are no current, pending or, to the knowledge of Westcoast,
             threatened proceedings before any board or tribunal or claims with
             respect to employment and labor Laws, including, but not limited
             to, employment and labor standards, unfair labor practices,
             employment discrimination, occupational health and safety,
             employment equity, pay equity, workers' compensation, human rights
             and labor relations, other than such proceedings and claims which,
             individually or in the aggregate, would not have a Material Adverse
             Effect on Westcoast. Westcoast and its subsidiaries are not subject
             to any settlement agreement, conciliation agreement, letter of
             commitment, deficiency letter or consent decree with any present or
             former employee or applicant for employment, labor union or other
             employee representative,



                             COMBINATION AGREEMENT
                                       20
<PAGE>   25

             or any Government Entity or arbitrator relating to claims of unfair
             labor practices, employment discrimination, or other claims with
             respect to employment and labor practices and policies that would
             have a Material Adverse Effect on Westcoast, and no Government
             Entity or arbitrator has issued a judgment, order, decree,
             injunction, decision, award or finding with respect to the
             employment and labor practices or policies of Westcoast or its
             subsidiaries which currently has or would be reasonably expected to
             have a Material Adverse Effect on Westcoast. There are no
             outstanding assessments, penalties, fines, liens, charges,
             surcharges, or other amounts due and owing pursuant to any
             workplace safety and insurance legislation by Westcoast or any of
             its subsidiaries and they have not been reassessed in any material
             respect under such legislation during the past three years and, to
             the knowledge of Westcoast, no audit is currently being performed
             pursuant to any applicable workplace safety and insurance
             legislation. There are no claims or, to the knowledge of Westcoast,
             potential claims which may materially and adversely affect accident
             cost experience.

3.8      REPORTS; FINANCIAL STATEMENTS

         (a) Since January 1, 1998, Westcoast and its subsidiaries have timely
             filed all forms, reports, schedules, statements and other documents
             required to be filed with (i) Canadian securities regulatory
             authorities (collectively the "Westcoast SRA Reports"), (ii) the
             SEC under the Exchange Act or the 1933 Act (collectively the
             "Westcoast SEC Reports"), (iii) any other applicable state,
             provincial or territorial securities authority, and (iv) any other
             Governmental Entity, except in each case where the failure to file
             any such forms, reports, schedules, statements or other documents
             would not have a Material Adverse Effect on Westcoast (all such
             forms, reports, schedules, statements and other documents are
             collectively referred to as the "Westcoast Documents"). The
             Westcoast Documents at the time filed (x) did not contain any
             misrepresentation (as defined in the Securities Act), (y) did not
             contain any untrue statement of a material fact or omit to state a
             material fact required to be stated therein or necessary in order
             to make the statements contained therein not misleading in light of
             the circumstances under which they were made and (z) complied in
             all material respects with the requirements of applicable Laws
             (including, with respect to the Westcoast SEC Reports, the 1933
             Act, the Exchange Act and the rules and regulations thereunder).
             Westcoast has not filed any confidential material change report
             with the OSC or any other securities authority or regulator or any
             stock exchange or other self-regulatory authority that at the date
             hereof remains confidential.

         (b) The consolidated financial statements (including, in each case, any
             related notes thereto) contained in any Westcoast SRA Reports or
             Westcoast SEC Reports (i) have been prepared in accordance with
             Canadian generally accepted accounting principles applied on a
             consistent basis during the periods involved (subject, in the case
             of unaudited financial statements, to the absence of notes in the
             case of Westcoast SRA Reports filed prior to the implementation of
             OSC Rule 51-501), (ii) complied in all material respects with the
             requirements of applicable securities Laws, and (iii) fairly
             present, in all material respects, the consolidated financial
             position, results of operations and cash flows of Westcoast and its
             subsidiaries as of the respective dates


                             COMBINATION AGREEMENT
                                       21
<PAGE>   26

             thereof and for the respective periods covered thereby, subject, in
             the case of unaudited financial statements, to normal, recurring
             audit adjustments none of which will be material.

         (c) From January 1, 1998 to the date of this Agreement, there has been
             no change by Westcoast or its subsidiaries in their accounting
             policies, methods, practices or principles that are material to
             Westcoast's consolidated financial statements, except as described
             in the notes thereto with respect to periods ending prior to the
             date hereof.

3.9      CONTRACTS

         Section 3.9 of the Westcoast Disclosure Letter lists (without
specifically identifying the subsection of this Section 3.9 to which they
relate) as of the date hereof all written or oral contracts, agreements,
guarantees, leases and executory commitments other than Westcoast Plans to which
Westcoast or any of its subsidiaries is a party and which fall within any of the
following categories: (a) contracts not entered into in the ordinary course of
Westcoast's and its subsidiaries' business other than those that are not
material to the business of Westcoast and its subsidiaries, (b) contracts
containing covenants purporting to limit the freedom of Westcoast or any of its
subsidiaries to compete in any line of business in any geographic area or to
hire any individual or group of individuals, (c) contracts which after the
Effective Time would have the effect of limiting the freedom of Duke Energy or
its subsidiaries (other than Westcoast and its subsidiaries) to compete in any
line of business in any geographic area or to hire any individual or group of
individuals, (d) purchase contracts involving in excess of $25 million per year
which restrict or limit the purchasing relationships of Westcoast or its
subsidiaries, (e) contracts relating to any outstanding commitment for capital
expenditures in excess of $100 million other than capital expenditures included
in the 2001 capital expenditures budget that was previously approved by the
Board of Directors of Westcoast and which was provided to Duke Energy or which
were reported to the Board of Directors of Westcoast in the Second Quarter 2001
Outlook previously provided to Duke Energy, (f) contracts with any labor
organization or union, (g) except as reflected in the Westcoast financial
statements included in the Westcoast SRA Reports for the period ended June 30,
2001, indentures, mortgages, liens, promissory notes, loan agreements,
guarantees or other arrangements relating to the borrowing of money by Westcoast
or its subsidiaries in excess of $100 million, (h) contracts providing for
"earn-outs", "savings guarantees", "performance guarantees", or other contingent
payments by Westcoast or any of its subsidiaries involving more than $100
million per year or $250 million over the term of the contract, (i)
confidentiality or standstill agreements with any person (the effectiveness of
which extends beyond the date that is six months following the date hereof) that
restrict Westcoast or any of its subsidiaries in the use of any information or
the taking of any actions by Westcoast or its subsidiaries entered into in
connection with the consideration by Westcoast or any of its subsidiaries of any
acquisition of equity interests or assets, (j) contracts containing provisions
triggered by a change of control of Westcoast or other similar provisions, (k)
contracts in favour of directors or officers that provide rights to
indemnification and (l) contracts that are material to Westcoast and its
subsidiaries taken as a whole other than those that are covered by (a) through
(k) of this Section 3.9 or filed in the Westcoast SRA Reports or Westcoast SEC
Reports filed prior to the date hereof. All such contracts and all other
contracts that are individually material to the business or operations of
Westcoast and its subsidiaries are valid and binding obligations 



                             COMBINATION AGREEMENT
                                       22
<PAGE>   27

of Westcoast or such subsidiaries that are parties thereto and, to the knowledge
of Westcoast, the valid and binding obligation of each other party thereto
except such contracts which if not so valid and binding would not, individually
or in the aggregate, have a Material Adverse Effect on Westcoast.

3.10     LITIGATION

         There are no claims, actions, proceedings or investigations pending or,
to the knowledge of Westcoast, threatened against Westcoast or any of its
subsidiaries or Partially Owned Entities before any Governmental Entity (and
Westcoast, its subsidiaries and, to the knowledge of Westcoast, its Partially
Owned Entities, have no knowledge of any facts that are likely to give rise to
any such claim, action, proceeding or investigation) that would be reasonably
expected to have a Material Adverse Effect on Westcoast, or prevent or
materially delay consummation of the transactions contemplated by this
Agreement. Neither Westcoast nor any of its subsidiaries, nor their respective
assets and properties, is subject to any outstanding judgment, order, writ,
injunction or decree that has had or would be reasonably expected to have a
Material Adverse Effect on Westcoast or that would prevent or materially delay
consummation of the transactions contemplated by this Agreement.

3.11     ENVIRONMENTAL

         Except for any matters which individually or in the aggregate are not
reasonably likely to result in an expenditure or liability in excess of $20
million:

         (a) all operations of Westcoast and its subsidiaries and, to the
             knowledge of Westcoast, any of its Partially Owned Entities have
             been conducted, and are now, in compliance with all Environmental
             Laws;

         (b) Westcoast and its subsidiaries and, to the knowledge of Westcoast,
             its Partially Owned Entities are in possession of, and in
             compliance with, all permits, authorizations, certificates,
             registrations, approvals and consents necessary under Environmental
             Laws to own, lease and operate their properties and to conduct
             their respective businesses as they are now being conducted or as
             proposed to be conducted (collectively the "Westcoast Environmental
             Permits"); and

         (c) neither Westcoast nor any of its subsidiaries or, to the knowledge
             of Westcoast, any of its Partially Owned Entities is subject to:

             (i)   any Environmental Laws that require any work, repairs,
                   construction, change in business practices or operations, or
                   expenditures, including capital expenditures for facility
                   upgrades, environmental investigation and remediation
                   expenditures, or any other such expenditures;

             (ii)  any written demand or written notice alleging breach of or
                   with respect to liability under any Environmental Laws
                   applicable to Westcoast, any subsidiary of Westcoast or any
                   of its Partially Owned Entities, including any regulations
                   respecting the use, storage, treatment, transportation or
                   disposition (including disposal or arranging for disposal) of
                   Hazardous Substances;


                             COMBINATION AGREEMENT
                                       23
<PAGE>   28

             (iii) any written demand or written notice with respect to
                   liability, by contract or operation of Environmental Laws
                   applicable to Westcoast or any current or former subsidiary
                   of Westcoast or any of its Partially Owned Entities or any of
                   their respective predecessor entities, divisions or any
                   formerly owned, leased or operated properties or assets of
                   the foregoing, including liability with respect to the
                   presence, release, threatened release or discharge of
                   Hazardous Substances; or

             (iv)  any changes in the terms or conditions of any Westcoast
                   Environmental Permits or any renewal (other than renewals in
                   the ordinary course on the expiry of permits), modification,
                   revocation, reissuance, alteration or amendment of such
                   Westcoast Environmental Permits that are required in
                   connection with the execution or delivery of this Agreement,
                   the consummation of the transactions contemplated hereby or
                   the continuation of business of Westcoast or any subsidiaries
                   of Westcoast or, to the knowledge of Westcoast, any of its
                   Partially Owned Entities following such consummation.

3.12     TAX MATTERS

         (a) Westcoast and each of its subsidiaries have timely filed, or caused
             to be filed, all material Tax Returns required to be filed by them
             (all of which returns were correct and complete in all material
             respects), have timely paid, or caused to be paid, Taxes shown to
             be due and payable thereon, and have satisfied in full in all
             respects all Tax withholding, deposit and remittance requirements
             imposed on or with respect to any of Westcoast and its
             subsidiaries, and Westcoast's most recently published financial
             statements contain an adequate provision in accordance with
             Canadian generally accepted accounting principles for all material
             amounts of Taxes payable in respect of each period covered by such
             financial statements and all prior periods to the extent such Taxes
             have not been paid, whether or not due and whether or not shown as
             being due on any Tax Returns. Westcoast and each of its
             subsidiaries have made adequate provision in accordance with
             Canadian generally accepted accounting principles in their books
             and records for any amount of Taxes material to Westcoast on a
             consolidated basis and accruing in respect of any accounting period
             ending subsequent to the period covered by such financial
             statements.

         (b) Neither Westcoast nor any subsidiary of Westcoast has received any
             written notification that any issue involving an amount of Taxes
             material to Westcoast on a consolidated basis has been raised (and
             is currently pending) by the Canada Customs and Revenue Agency, the
             United States Internal Revenue Service or any other taxing
             authority, including, without limitation, any sales tax authority,
             in connection with any of the Tax Returns filed or required to be
             filed, and no waivers of statutes of limitations or objections to
             any assessments or reassessments involving an amount of Taxes
             material to Westcoast on a consolidated basis have been given,
             filed or requested with respect to Westcoast or any subsidiary of
             Westcoast. All liability of Westcoast and its subsidiaries for
             Canadian federal and provincial income and capital taxes has been
             assessed by the Canada Customs and Revenue Agency and, where


                             COMBINATION AGREEMENT
                                       24
<PAGE>   29


             applicable, Canadian provincial tax authorities for all fiscal
             years up to and including the fiscal year ended December 31, 1999.
             Neither Westcoast nor any of its subsidiaries has received any
             notice from any taxing authority to the effect that any Tax Return
             is being examined, and Westcoast has no knowledge of any Tax audit
             or issue that would be reasonably expected to have a Material
             Adverse Effect on Westcoast. There are no proposed (but unassessed)
             additional Taxes applicable to Westcoast or any of its subsidiaries
             or, to the knowledge of Westcoast, any of its Partially Owned
             Entities, involving an amount of Taxes material to Westcoast on a
             consolidated basis and none has been asserted against Westcoast or
             any of its subsidiaries or, to the knowledge of Westcoast, any of
             its Partially Owned Entities. There are no Tax liens on any assets
             of Westcoast or any of its subsidiaries except for Taxes not yet
             due and payable and those which would not be reasonably expected to
             result in a Material Adverse Effect on Westcoast. Neither Westcoast
             nor any of its subsidiaries has received a refund of any Taxes to
             which it was not entitled. Neither Westcoast nor any of its
             subsidiaries (i) has made an election to be treated as a
             "consenting corporation" under Section 341(f) of the United States
             Internal Revenue Code of 1986 (the "Code") or (ii) is a party to
             any Tax sharing or other similar agreement or arrangement or any
             Tax indemnification agreement of any nature with any other person
             (other than in agreements with Westcoast or any of its
             subsidiaries) pursuant to which Westcoast or any of its
             subsidiaries has or could have any material liabilities in respect
             of Taxes. Westcoast has not made an election under Section 897(i)
             of the Code to be treated as a domestic corporation for purposes of
             Sections 897, 1445 and 6039C of the Code.

         (c) "Tax" and "Taxes" means, with respect to any person, all income
             taxes (including any tax on or based upon net income, gross income,
             income as specially defined, earnings, profits or selected items of
             income, earnings or profits) and all capital taxes, gross receipts
             taxes, environmental taxes, sales taxes, use taxes, ad valorem
             taxes, value added taxes, transfer taxes, franchise taxes, license
             taxes, withholding taxes, payroll taxes, employment taxes, pension
             plan premiums, excise, severance, social security premiums,
             workers' compensation premiums, unemployment insurance or
             compensation premiums, stamp taxes, occupation taxes, premium
             taxes, property taxes, windfall profits taxes, alternative or
             add-on minimum taxes, goods and services tax, customs duties or
             other taxes, fees, imports, assessments or charges of any kind
             whatsoever, together with any interest and any penalties or
             additional amounts imposed by any taxing authority (domestic or
             foreign) on such entity, and any interest, penalties, additional
             taxes and additions to tax imposed with respect to the foregoing.

3.13     PENSION AND EMPLOYEE BENEFITS

         (a) Section 3.13 of the Westcoast Disclosure Letter sets forth a list
             of all employee benefit, health, welfare, supplemental unemployment
             benefit, bonus, incentive, pension, profit sharing, deferred
             compensation, stock compensation, stock option, stock purchase,
             retirement, hospitalization insurance, medical, dental, legal,
             disability and similar plans or arrangements or practices, whether
             written or oral, which are sponsored, maintained or contributed to
             by Westcoast or any of its subsidiaries


                             COMBINATION AGREEMENT
                                       25
<PAGE>   30


             (collectively referred to as the "Westcoast Plans"). The Westcoast
             Disclosure Letter states which of the Westcoast Plans are subject
             to the provisions of the United States Employee Retirement Income
             Security Act of 1974, as amended ("ERISA"). For purposes of this
             Section 3.13, a subsidiary of Westcoast shall be deemed to also
             include each corporation, trade, business, or entity that would be
             considered to be a single employer or under common control with
             Westcoast pursuant to Section 414 of the Code or Section 4001 of
             ERISA.

         (b) No step has been taken, no event has occurred and no condition or
             circumstance exists that has resulted in or could be reasonably
             expected to result in any Westcoast Plan being ordered or required
             to be terminated or wound up in whole or in part or having its
             registration under applicable Laws refused or revoked, or being
             placed under the administration of any trustee or receiver or
             regulatory authority or being required to pay any material amount
             of Taxes, fees, penalties or levies under applicable Laws. There
             are no actions, suits, claims (other than routine claims for
             payment of benefits in the ordinary course), trials, demands,
             investigations, arbitrations or other proceedings which are pending
             or threatened in respect of any of the Westcoast Plans or their
             assets which individually or in the aggregate would have a Material
             Adverse Effect on Westcoast.

         (c) Westcoast has provided to Duke Energy true, correct and complete
             copies of all of the Westcoast Plans as amended (or, in the case of
             any unwritten Westcoast Plan, a description thereof) together with
             all related actuarial reports, and Westcoast has made available to
             Duke Energy all other related documentation including, without
             limitation, funding agreements, trust agreements, funding and
             financial information returns and statements with respect to each
             Westcoast Plan, and current plan summaries, booklets and personnel
             manuals. Westcoast has provided to Duke Energy a true and complete
             copy of (i) the most recent annual report on Form 5500 filed with
             the United States Internal Revenue Service with respect to each
             Westcoast Plan in respect of which such a report was required and
             (ii) the most recent annual information return filed with the
             Canada Customs and Revenue Agency with respect to each Westcoast
             Plan in respect of which such a return was required.

         (d) All of the Westcoast Plans are and have been established,
             registered, qualified, invested and administered, in all material
             respects, in accordance with all applicable Laws, and in accordance
             with their terms and the terms of agreements between Westcoast or a
             subsidiary of Westcoast, as the case may be, and their respective
             employees. No fact or circumstance exists that could adversely
             affect the existing tax status of a Westcoast Plan.

         (e) All obligations of Westcoast or a subsidiary of Westcoast regarding
             the Westcoast Plans have been satisfied in all material respects.
             All contributions or premiums required to be made by Westcoast or a
             subsidiary of Westcoast, as the case may be, under the terms of
             each Westcoast Plan or by applicable Laws have been made in a
             timely fashion in accordance with applicable Laws and the terms of
             the Westcoast Plans.


                             COMBINATION AGREEMENT
                                       26
<PAGE>   31


         (f) Each Westcoast Plan is fully insured or fully funded (both on a
             going-concern and solvency basis) and in good standing with such
             regulatory authorities as may be applicable and, as of the date
             hereof, no notice of underfunding, noncompliance, failure to be in
             good standing or otherwise has been received by Westcoast or its
             subsidiaries from any such regulatory authority.

         (g) There have been no improper withdrawals, applications or transfers
             of assets from any Westcoast Plan or the trusts or other funding
             media relating thereto that remain outstanding and unremedied, and
             neither Westcoast, nor any subsidiary of Westcoast, nor, to the
             knowledge of Westcoast, any of their respective agents has been in
             breach of any fiduciary obligation with respect to the
             administration of the Westcoast Plans or the trusts or other
             funding media relating thereto.

         (h) Westcoast or its subsidiaries may unilaterally amend or terminate,
             in whole or in part, each Westcoast Plan and take contribution
             holidays under or withdraw surplus from each Westcoast Plan,
             subject only to approvals required by Law and, with respect to
             amendment or termination, the collective agreements disclosed in
             Section 3.7 of the Westcoast Disclosure Letter.

         (i) No commitments to improve or otherwise amend any Westcoast Plan
             have been made except as required by applicable Laws.

         (j) None of the Westcoast Plans (other than pension plans) provide
             benefits to retired or former employees or to the beneficiaries or
             dependants of retired or former employees.

         (k) No insurance policy or any other contract or agreement affecting
             any Westcoast Plan requires or permits a retroactive increase in
             premiums or payments due thereunder.

         (l) All Westcoast Plans intended to be tax-qualified in the United
             States have been the subject of determination letters from the
             United States Internal Revenue Service to the effect that such
             Westcoast Plans and their related trusts are qualified and exempt
             from United States Federal income taxes under Sections 401(a) and
             501(a), respectively, of the Code, and no such determination letter
             has been revoked nor, to the knowledge of Westcoast, has revocation
             been threatened, nor has any such Westcoast Plan been amended since
             the date of its most recent determination letter or application
             therefor in any respect that would adversely affect its
             qualification or materially increase its costs and nothing has
             occurred since the date of such letter that could adversely affect
             the qualified status of such plan. As to any such Westcoast Plan,
             there has been no termination or partial termination of such
             Westcoast Plan within the meaning of Section 411(d)(3) of the Code.

         (m) No amount or benefit that could be received (whether in cash or
             property, the vesting of property or the acceleration of the
             exerciseability of stock options) as a result of or in connection
             with the transactions contemplated by this Agreement or the
             Arrangement (whether or not some other subsequent action or event
             would be required to cause the receipt of such amount or benefit to
             occur) by any employee,


                             COMBINATION AGREEMENT
                                       27
<PAGE>   32


             officer or director of Westcoast or any of its affiliates who is a
             "disqualified individual" (as such term is defined in proposed
             United States Treasury Regulation Section 1.280G-1) under any
             employment, severance or termination agreement, other compensation
             arrangement or Westcoast Plan currently in effect will fail to be
             deductible for United States federal income tax purposes by virtue
             of Section 280G of the Code.

         (n) None of the Westcoast Plans is a "multiemployer plan" within the
             meaning of Section 4001(a)(3) of ERISA or any other applicable Law,
             nor has Westcoast or any subsidiary of Westcoast been obligated to
             contribute to any such multiemployer plan at any time within the
             past six years.

         (o) No employment, severance or termination agreement, other
             compensation arrangement or Westcoast Plan provides for payment of
             a benefit, the increase of a benefit amount, the acceleration of
             contributions or funding, the payment of a contingent benefit or
             the acceleration of the payment or vesting of a benefit by reason
             of the execution of this Agreement or the consummation of the
             transactions contemplated by this Agreement or the Arrangement
             (whether or not some other subsequent action or event would be
             required to cause such payment, increase, acceleration, or vesting
             to be triggered).

         (p) As to any Westcoast Plan that is subject to Title IV of ERISA, no
             accumulated funding deficiency, whether or not waived, within the
             meaning of Section 302 of ERISA or Section 412 of the Code has been
             incurred, no reportable event within the meaning of Section 4043 of
             ERISA has occurred, no notice of intent to terminate the plan has
             been given under Section 4041 of ERISA, no proceeding has been
             instituted under Section 4042 of ERISA to terminate the plan, and
             no liability to the United States Pension Benefit Guaranty
             Corporation has been incurred.

         (q) As to any Westcoast Plan which is subject to ERISA or the Code, no
             act, omission or transaction has occurred which would result in
             imposition on Westcoast or any subsidiary of Westcoast of (i)
             breach of fiduciary duty liability damages under Section 409 of
             ERISA, (ii) a civil penalty assessed pursuant to subsections (c),
             (i) or (l) of Section 502 of ERISA, or (iii) a tax imposed pursuant
             to Chapter 43 of Subtitle D of the Code.

         (r) Each trust funding a Westcoast Plan, which trust is intended to be
             exempt from United States federal income taxation pursuant to
             Section 501(c)(9) of the Code, satisfies the requirements of such
             section and has received a favourable determination letter from the
             United States Internal Revenue Service regarding such exempt status
             and has not, since receipt of the most recent favourable
             determination letter, been amended or operated in a way which would
             adversely affect such exempt status.

3.14     AFFILIATES

         Section 3.14 of the Westcoast Disclosure Letter identifies all persons
who, to the knowledge of Westcoast, may be deemed to be affiliates of Westcoast
under Rule 145 of the 1933 Act, including all directors and executive officers
of Westcoast.


                             COMBINATION AGREEMENT
                                       28
<PAGE>   33


3.15     COMPLIANCE WITH LAWS; PERMITS

         (a) Westcoast, its subsidiaries and, to the knowledge of Westcoast, its
             Partially Owned Entities are in compliance, and at all times since
             January 1, 1998 have complied, with all applicable Laws other than
             non-compliance which would not, individually or in the aggregate,
             have a Material Adverse Effect on Westcoast. No investigation or
             review by any Governmental Entity with respect to Westcoast, any of
             its subsidiaries, or the knowledge of Westcoast, its Partially
             Owned Entities, is pending or, to the knowledge of Westcoast, is
             threatened, nor has any Governmental Entity indicated in writing an
             intention to conduct the same, other than those the outcome of
             which would not have a Material Adverse Effect on Westcoast.

         (b) Westcoast and its subsidiaries and, to the knowledge of Westcoast,
             its Partially Owned Entities are in possession of all franchises,
             grants, authorizations, licenses, permits, easements, variances,
             exemptions, consents, certificates, approvals and orders necessary
             to own, lease and operate their properties and to lawfully carry on
             their businesses as they are now being conducted (collectively, the
             "Westcoast Permits"), except where the failure to be in possession
             of such Westcoast Permits would not, individually or in the
             aggregate, have a Material Adverse Effect on Westcoast, and there
             is no action, proceeding or investigation pending or, to the
             knowledge of Westcoast, threatened regarding any of the Westcoast
             Permits which would have a Material Adverse Effect on Westcoast.
             None of Westcoast, any of its subsidiaries or, to the knowledge of
             Westcoast, any of its Partially Owned Entities is in conflict with,
             or in default or violation of any of the Westcoast Permits, except
             for any such conflicts, defaults or violations which would not,
             individually or in the aggregate, have a Material Adverse Effect on
             Westcoast.

         (c) None of Westcoast, any of its subsidiaries or, to the knowledge of
             Westcoast, any directors, officers, agents or employees of
             Westcoast or any of its subsidiaries has (i) used any funds for
             unlawful contributions, gifts, entertainment or other unlawful
             expenses relating to political activity, or (ii) made any unlawful
             payment to any government officials or employees or to political
             parties or campaigns or violated any provision of the United States
             Foreign Corrupt Practices Act of 1977, as amended in each case
             which could reasonably be expected to have a material and adverse
             effect on Westcoast.

3.16     RESTRICTIONS ON BUSINESS ACTIVITIES

         There is no agreement, judgment, injunction, order or decree binding
upon Westcoast or any of its subsidiaries that has or could be reasonably
expected to have the effect of prohibiting, restricting or materially impairing
any business practice of Westcoast or any of its subsidiaries, any acquisition
of property by Westcoast or any of its subsidiaries or the conduct of business
by Westcoast or any of its subsidiaries as currently conducted other than such
agreements, judgments, injunctions, orders or decrees which would not,
individually or in the aggregate, have a Material Adverse Effect on Westcoast.


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3.17     INTELLECTUAL PROPERTY

         (a) Westcoast and its subsidiaries, directly or indirectly, own,
             license or otherwise have legally enforceable rights to use, or can
             acquire on reasonable terms and without material expense, all
             patents, patent rights, trademarks, trade names, service marks,
             copyrights and any applications therefore, technology, know-how,
             computer software and applications and tangible or intangible
             proprietary information or materials, that are material to and used
             in the business of Westcoast and its subsidiaries as presently
             conducted (the "Intellectual Property Rights").

         (b) In the case of Intellectual Property Rights owned by Westcoast or
             one of its subsidiaries, either Westcoast or one of its
             subsidiaries owns such Intellectual Property Rights free and clear
             of any material liens, charges or encumbrances. Westcoast or one of
             its subsidiaries has an adequate right to the use of the
             Intellectual Property Rights or the material covered thereby in
             connection with the services or products in respect of which such
             Intellectual Property Rights are being used. Westcoast has not
             received any written notice or claim, nor has it received any other
             information, stating that the manufacture, sale, licensing, or use
             of any of the services or products of Westcoast or any of its
             subsidiaries as now manufactured, sold, licensed or used or
             proposed for manufacture, sale, licensing or use by Westcoast or
             any of its subsidiaries in the ordinary course of Westcoast's
             business as presently conducted infringes on any copyright, patent,
             trade mark, service mark or trade secret of a third party where
             such infringement would have a Material Adverse Effect on
             Westcoast. Westcoast has not received any written notice or claim,
             nor has it received any other information, stating that the use by
             Westcoast or any of its subsidiaries of any trademarks, service
             marks, trade names, trade secrets, copyrights, patents, technology
             or know-how and applications used in the business of Westcoast and
             any of its subsidiaries as presently conducted infringes on any
             other person's trademarks, service marks, trade names, trade
             secrets, copyrights, patents, technology or know-how and
             applications where such infringement would have a Material Adverse
             Effect on Westcoast. Westcoast has not received any written notice
             or claim, nor has it received any other information, challenging
             the ownership by Westcoast or any of its subsidiaries or the
             validity of any of the Intellectual Property Rights. All registered
             patents, trademarks, service marks and copyright held by Westcoast
             and its subsidiaries are subsisting, except to the extent any
             failure to be subsisting would not have a Material Adverse Effect
             on Westcoast. To the knowledge of Westcoast, there is no material
             unauthorized use, infringement or misappropriation of any of the
             Intellectual Property Rights by any third party, including any
             employee or former employee of Westcoast or any of its subsidiaries
             No Intellectual Property Right is subject to any known outstanding
             decree, order, judgment, or stipulation restricting in any manner
             the licensing thereof by Westcoast or any of its subsidiaries,
             except to the extent any such restriction would not have a Material
             Adverse Effect on Westcoast.


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3.18     INSURANCE

         Each of Westcoast and its subsidiaries is, and has been continuously
since September 1, 1996, insured by reputable and financially responsible
insurers in amounts and against risks and losses as are customary for companies
conducting their respective businesses. Westcoast's and its subsidiaries'
insurance policies are in all material respects in full force and effect in
accordance with their terms, no notice of cancellation or termination has been
received, and there is no existing default or event which, with the giving of
notice or lapse of time or both would constitute a default thereunder.

3.19     PROPERTY

         (a) Westcoast, its subsidiaries and, to the knowledge of Westcoast, its
             Partially Owned Entities have defensible title (or, with respect to
             pipelines, equipment and other tangible personal property used in
             connection with Westcoast's pipeline operations (collectively,
             "Westcoast Pipeline Assets") title to or interest in the applicable
             Westcoast Pipeline Assets sufficient to enable Westcoast, its
             subsidiaries and, to the knowledge of Westcoast, its Partially
             Owned Entities to conduct their businesses with respect thereto
             without material interference as it is currently being conducted)
             to all their material properties and assets, whether tangible or
             intangible, real, personal or mixed, free and clear of all liens,
             except for liens disclosed in the Westcoast Documents and liens the
             existence of which would not have a Material Adverse Effect on
             Westcoast.

         (b) The businesses of Westcoast and each of its subsidiaries have been
             and are being operated in a manner which does not violate (in any
             manner which would, or which would be reasonably expected to, have
             a Material Adverse Effect on Westcoast) the terms of any easements,
             rights of way, permits, servitudes, licenses, leasehold estates and
             similar rights relating to real property (collectively,
             "Easements") used by Westcoast and each of its subsidiaries in such
             businesses. All Easements are valid and enforceable, except as the
             enforceability thereof may be affected by bankruptcy, insolvency or
             other Laws of general applicability affecting the rights of
             creditors generally or principles of equity, and grant the rights
             purported to be granted thereby and all rights necessary thereunder
             for the current operation of such businesses where the failure of
             any such Easement to be valid and enforceable or to grant the
             rights purported to be granted thereby or necessary thereunder
             would have a Material Adverse Effect on Westcoast. There are no
             special gaps in the Easements which would impair the conduct of
             such businesses in a manner that would, or that would be reasonably
             expected to, have a Material Adverse Effect on Westcoast, and no
             part of the Westcoast Pipeline Assets is located on property which
             is not owned in fee by Westcoast or a subsidiary of Westcoast or
             subject to an Easement in favour of Westcoast or a subsidiary of
             Westcoast, where the failure of such Westcoast Pipeline Assets to
             be so located would have a Material Adverse Effect on Westcoast.


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3.20     REGULATORY PROCEEDINGS

         None of Westcoast, any of its subsidiaries or, to the knowledge of
Westcoast, any of its Partially Owned Entities, all or part of whose rates or
services are regulated by a Governmental Entity, is a party to any proceeding
before a Governmental Entity which is reasonably likely to result in orders
having a material burden on the future operations or business of Westcoast or
any Material Subsidiary of Westcoast nor has written notice of any such
proceeding been received by Westcoast, any of its subsidiaries or, to the
knowledge of Westcoast, any of its Partially Owned Entities.

3.21     REGULATION AS A UTILITY

         (a) Westcoast and all of its "subsidiary companies" and "affiliates",
             as such terms are defined