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                                                                 Exhibit 10(k)



                          AGREEMENT AND PLAN OF MERGER


                                 by and between


                                 TXU Gas Company


                                       and


                           LSG Acquisition Corporation


                                      dated


                                  June 17, 2004






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                                TABLE OF CONTENTS
                                                                                                               Page


<S>       <C>        <C>                                                                                          <C>
ARTICLE I            DEFINITIONS..................................................................................1

         Section 1.01.       Defined Terms........................................................................1

         Section 1.02.       Interpretation and Rules of Construction.............................................1

ARTICLE II           THE MERGER...................................................................................2

         Section 2.01.       The Merger...........................................................................2

         Section 2.02.       Effective Time.......................................................................2

         Section 2.03.       Effect of the Merger.................................................................2

         Section 2.04.       Organizational Documents.............................................................2

         Section 2.05.       Officers and Directors...............................................................3

ARTICLE III          ALLOCATION OF ASSETS AND LIABILITIES; STATUS AND CONVERSION OF SECURITIES; CONSENTS..........3

         Section 3.01.       TXU Gas Merger Assets and TXU Gas Merger Liabilities.................................3

         Section 3.02.       TXU Gas Excluded Assets and TXU Gas Retained Liabilities.............................5

         Section 3.03.       LSG Merger Assets....................................................................6

         Section 3.04.       LSG Excluded Assets and LSG Retained Liabilities.....................................6

         Section 3.05.       Status and Conversion of Securities..................................................6

         Section 3.06.       Dissenters' Rights; Redemption.......................................................6

         Section 3.07.       Consents to Assignment...............................................................7

ARTICLE IV           MERGER CONSIDERATION; CLOSING; ADJUSTMENTS...................................................7

         Section 4.01.       Acknowledgement of Consideration for Merger..........................................7

         Section 4.02.       Closing..............................................................................7

         Section 4.03.       Closing Deliveries by TXU Gas........................................................8

         Section 4.04.       Closing Deliveries by LSG............................................................8

         Section 4.05.       Books and Records Transfer...........................................................9

         Section 4.06.       PRELIMINARY STATEMENT OF WORKING CAPITAL; FINAL STATEMENT OF WORKING CAPITAL;
                             ADJUSTMENT OF LSG MERGER ASSETS.....................................................10

         Section 4.07.       Allocation of Agreed Value..........................................................11



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<S>       <C>        <C>                                                                                          <C>
ARTICLE V            REPRESENTATIONS AND WARRANTIES OF TXU GAS...................................................11

         Section 5.01.       Organization and Corporate Power....................................................11

         Section 5.02.       Authorization of Agreement and Transaction..........................................12

         Section 5.03.       No Contravention; Compliance With Law; Authorization................................12

         Section 5.04.       Financial Statements................................................................12

         Section 5.05.       Permits.............................................................................13

         Section 5.06.       Title to the Assets.................................................................14

         Section 5.07.       Condition of Property...............................................................14

         Section 5.08.       Material Contracts..................................................................14

         Section 5.09.       Environmental Matters...............................................................14

         Section 5.10.       Litigation..........................................................................15

         Section 5.11.       Gas Regulatory Matters..............................................................15

         Section 5.12.       Brokers' Fees.......................................................................16

         Section 5.13.       Foreign Investor in Real Property Tax Act (FIRPTA)..................................16

         Section 5.14.       No Bankruptcy.......................................................................16

         Section 5.15.       Labor Matters.......................................................................16

         Section 5.16.       Certain Transfer Requirements.......................................................16

         Section 5.17.       Tax Matters.........................................................................16

         Section 5.18.       Employee Benefit Plans; ERISA.......................................................16

         Section 5.19.       Insurance...........................................................................17

         Section 5.20.       Transactions with Affiliates........................................................17

         Section 5.21.       Excluded Subsidiaries...............................................................17

ARTICLE VI           REPRESENTATIONS AND WARRANTIES OF LSG.......................................................17

         Section 6.01.       Organization and Corporate Power....................................................17

         Section 6.02.       Authority and Binding Obligations...................................................18

         Section 6.03.       Litigation..........................................................................18

         Section 6.04.       No Contravention Compliance With Law; Authorization.................................18

         Section 6.05.       Financial Capacity; Future Performance..............................................18

         Section 6.06.       Funds Available.....................................................................19


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                                       ii


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<S>       <C>        <C>                                                                                          <C>
ARTICLE VII          COVENANTS AND AGREEMENTS....................................................................19

         Section 7.01.       Joint Covenants and Agreements Pending Closing......................................19

         Section 7.02.       Joint Covenants:  Publicity.........................................................21

         Section 7.03.       Joint Covenants:  Confidentiality...................................................21

         Section 7.04.       Regulatory Filings; Hart-Scott-Rodino Filing........................................22

         Section 7.05.       Employment of Employees by LSG......................................................22

         Section 7.06.       Affiliate Agreements................................................................26

         Section 7.07.       Books and Records:  Access to Employees.............................................26

         Section 7.08.       Further Assurances; License.........................................................26

         Section 7.09.       Notices of Certain Events...........................................................27

         Section 7.10.       Casualty Loss or Condemnation.......................................................27

         Section 7.11.       Signs...............................................................................28

         Section 7.12.       LSG Parent Guaranty.................................................................28

         Section 7.13.       Tax Matters.........................................................................28

         Section 7.14.       Other Information...................................................................29

ARTICLE VIII         CONDITIONS TO THE OBLIGATIONS OF THE PARTIES TO CLOSE.......................................30

         Section 8.01.       Conditions to the Obligations of LSG................................................30

         Section 8.02.       Conditions to the Obligations of TXU Gas............................................30

ARTICLE IX           INDEMNIFICATION AND ASSUMPTION..............................................................31

         Section 9.01.       By TXU Gas..........................................................................31

         Section 9.02.       Environmental Indemnity.............................................................32

         Section 9.03.       Limitations.........................................................................32

         Section 9.04.       By LSG..............................................................................33

         Section 9.05.       Express Negligence Rule.............................................................33

         Section 9.06.       Notice of Claim.....................................................................33

         Section 9.07.       Third Party Claims..................................................................34

         Section 9.08.       Subrogation.........................................................................35

                                      iii
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<S>       <C>        <C>                                                                                          <C>
         Section 9.09.       EXCLUSIVE REMEDIES; SURVIVAL OF REPRESENTATIONS AND WARRANTIES;
                             LIMITATION OF CERTAIN LIABILITIES...................................................35

ARTICLE X            TERMINATION.................................................................................36

         Section 10.01.      Termination Events..................................................................36

         Section 10.02.      Effect of Termination...............................................................36

ARTICLE XI           MISCELLANEOUS...............................................................................37

         Section 11.01.      Entire Agreement....................................................................37

         Section 11.02.      No Reliance on External Representations.............................................37

         Section 11.03.      Amendments..........................................................................37

         Section 11.04.      Waivers.............................................................................37

         Section 11.05.      Parties in Interest.................................................................37

         Section 11.06.      Notices.............................................................................37

         Section 11.07.      Costs...............................................................................39

         Section 11.08.      Governing Law and Jurisdiction......................................................39

         Section 11.09.      Incorporation of Exhibits and Schedules; Amendment of Schedules.....................39

         Section 11.10.      Counterparts........................................................................39

         Section 11.11.      Severability........................................................................39

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                                       iv

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Appendices:

         Appendix A:       Defined Terms

Exhibits:

         Exhibit A:        Articles of Merger

         Exhibit B:        Transitional Services Agreements

                           Exhibit B-1:     Transitional Services Agreement
                                            between TXU Gas Company and
                                            Atmos Energy Corporation

                           Exhibit B-2:     Transitional Services Agreement
                                            between Oncor Utility Solutions
                                            (Texas) Company and Atmos
                                            Energy Corporation

                           Exhibit B-3:     Transitional Services Agreement
                                            between TXU Business Services
                                            Company and Atmos Energy
                                            Corporation

                           Exhibit B-4:     Transitional Access Agreement

         Exhibit C:        Parent Guaranties

                           Exhibit C-1:     LSG Parent Guaranty

                           Exhibit C-2:     TXU Gas Parent Guaranty

Schedules:

         Schedule 1 - Excluded Subsidiaries

         Schedule 2 - Pro Forma Balance Sheet

         Schedule 3.01(a) - Real Property

         Schedule 3.01(b) - Personal Property

         Schedule 3.01(c) - Operating Contracts

         Schedule 3.02 - Excluded Assets

         Schedule 4.07 - Allocation Schedule

         Schedule 5.03 - Defaults Under Notes or Debentures/Encumbrances



                                       v


<PAGE>

         Schedule 5.05 - Permits

         Schedule 5.06 - Title to Assets

         Schedule 5.08 - Material Contracts

         Schedule 5.09 - Environmental Matters

         Schedule 5.09(b) - Environmental Permits

         Schedule 5.10 - Litigation

         Schedule 5.16 - Certain Transfer Requirements

         Schedule 5.17 - Tax Matters

         Schedule 5.18 - Employee Benefit Plans; ERISA

         Schedule 5.19 - Insurance

         Schedule 5.20 - Transactions with Affiliates, Officers, Directors, etc.

         Schedule 6.04(b) - Required Filings

         Schedule 7.01(g) - Capital Expenditures Budget

         Schedule 7.05(a) - Form of Agreement and Release

         Schedule 7.05(g) - Severance Benefits

         Schedule 7.06 - Affiliate Agreements

         Schedule 7.11 - TXU Proprietary Colors

         Schedule 8.01(d) - Debt and Other Obligations

         Schedule 8.01(f) - Transfer Requirements


                                       vi

<PAGE>


                          AGREEMENT AND PLAN OF MERGER


         This Agreement and Plan of Merger dated as of June 17, 2004
("Agreement"), is by and between TXU Gas Company, a Texas corporation ("TXU
Gas"), and LSG Acquisition Corporation, a Texas corporation ("LSG"). TXU Gas and
LSG are referred to herein individually as a "Party" and collectively as the
"Parties."

                                    RECITALS:

         WHEREAS, upon the terms and conditions of this Agreement and in
accordance with the applicable provisions of Texas Law, TXU Gas and LSG will
merge (the "Merger"), with both TXU Gas and LSG being surviving entities of the
Merger.

         NOW, THEREFORE, in consideration of the premises and the mutual
agreements and covenants hereinafter set forth, and intending to be legally
bound, TXU Gas and LSG hereby agree as follows:

                                   ARTICLE I
                                   DEFINITIONS

         Section 1.01.  Defined Terms. In addition to the terms defined in the
introductory paragraph and the Recitals, this Agreement uses certain other
defined terms and expressions. The definitions of capitalized terms are set
forth in the text of this Agreement or in Appendix A.

         Section 1.02.  Interpretation and Rules of Construction.

               (a) References. The words "hereby," "herein," "hereof," "hereto,"
"hereunder" and words of similar import when used in this Agreement shall refer
to this Agreement as a whole and not to any particular article, section, or
provision of this Agreement. References in this Agreement to articles, sections,
exhibits, or schedules are to such articles, sections, exhibits, or schedules of
this Agreement, unless otherwise specified.

               (b) Articles, Sections and Table of Contents. This Agreement is
divided into articles and sections, and includes section and article headings
and a table of contents. These divisions and headings and tables are for
convenience only, and the Parties' rights and obligations will be determined
from this Agreement as a whole, unless otherwise specified, and without regard
to the divisions and headings and table of contents.

               (c) Number and Gender. Whenever the context requires, reference
to a single number will include the plural, and the plural will include the
singular. Words denoting gender will include the masculine, feminine, and
neuter, when appropriate; and specific enumeration will not exclude the general,
but will be construed as cumulative. Definitions of terms defined in the
singular or plural are equally applicable to the plural or singular, as
applicable, unless otherwise specified.

                                       1
<PAGE>

              (d) Construction. The Parties have participated jointly in the
negotiation and drafting of this Agreement. If an ambiguity or question of
intent or interpretation arises, this Agreement will be construed as if drafted
jointly by the Parties, and no presumption or burden of proof will arise
favoring or disfavoring either Party by virtue of the authorship of any part
of this Agreement. Time is of the essence with respect to all dates and time
periods specified in this Agreement.

                                   ARTICLE II
                                   THE MERGER

     Section 2.01. The Merger. Upon the terms and subject to the conditions set
forth in this Agreement, and in accordance with the applicable provisions of
Texas Law, at the Effective Time, TXU Gas and LSG will merge. As a result of the
Merger, each of TXU Gas and LSG shall continue as the surviving corporations of
the Merger. Following the Effective Time, TXU Gas and LSG may each individually
be referred to herein by its name prior to the Effective Time or as a "Surviving
Company" and collectively as the "Surviving Companies."

     Section 2.02. Effective Time. Subject to the provisions of this Agreement,
prior to the Closing Date, in order to consummate the Merger, the Parties hereto
shall file articles of merger or other appropriate documents (collectively, the
"Articles of Merger") with the Secretary of State of the State of Texas, in form
and substance as required by, and executed in accordance with the relevant
provisions of, Texas Law, which Articles of Merger shall specify that the Merger
shall be effective at the Effective Time.

     Section 2.03. Effect of the Merger. At the Effective Time, the effect of
the Merger shall be as provided by this Agreement and the applicable provisions
of Texas Law. Without limiting the generality of the foregoing and subject
thereto, at the Effective Time, (i) all of the real estate and other property of
TXU Gas and LSG shall be allocated between and vest in the Surviving Companies
as set forth in Article III, and (ii) all of the liabilities and obligations of
TXU Gas and LSG shall be allocated between the Surviving Companies as set forth
in Article III.

     Section 2.04.     Organizational Documents.

         (a) At the Effective Time, the articles of incorporation of TXU Gas,
as in effect immediately prior to the Effective Time, shall continue, in the
same such form, to be the articles of incorporation of such Surviving Company,
until thereafter amended in accordance with Texas Law and such articles of
incorporation. At the Effective Time, the articles of incorporation of LSG, as
in effect immediately prior to the Effective Time, shall continue in the same
such form, to be the articles of incorporation of such Surviving Company, until
thereafter amended in accordance with Texas Law and such articles of
incorporation.

         (b) At the Effective Time, the bylaws of TXU Gas, as in effect
immediately prior to the Effective Time, shall continue in the same such form,
to be the bylaws of such Surviving Company, until thereafter amended in
accordance with Texas Law. At the Effective Time, the bylaws of LSG, as in
effect immediately prior to the Effective Time, shall continue in the same such
form, to be the bylaws of such Surviving Company, until thereafter amended in
accordance with Texas Law.

                                       2
<PAGE>

     Section 2.05. Officers and Directors. The officers and directors of TXU Gas
immediately prior to the Effective Time shall continue as the officers and
directors of such Surviving Company, each to hold office in accordance with the
articles of incorporation and bylaws of such Surviving Company. The officers and
directors of LSG immediately prior to the Effective Time shall continue as the
officers and directors of such Surviving Company, each to hold office in
accordance with the articles of incorporation and bylaws of such Surviving
Company.

                                  ARTICLE III
                      ALLOCATION OF ASSETS AND LIABILITIES;
                  STATUS AND CONVERSION OF SECURITIES; CONSENTS

     Section 3.01. TXU Gas Merger Assets and TXU Gas Merger Liabilities. Subject
to the provisions set forth in Section 3.02, at the Effective Time, all of the
real estate and other property of TXU Gas set forth below in this Section 3.01
(the "TXU Gas Merger Assets") shall be allocated to, be possessed by, and vest
in, LSG, and all of the TXU Gas Merger Liabilities shall be allocated to, be
assumed by, and become the liabilities and obligations of, LSG, all without
further act or deed. The following items shall constitute the TXU Gas Merger
Assets:

          (a) All right, title and interest of TXU Gas in all real property (and
interests therein and appurtenances thereto), rights-of-way, leases, easements,
licenses or other rights to use or have access, servitudes, pipeline systems and
assets, distribution systems and assets, and gas storage assets, whether or not
of record, including (without limitation) those more particularly described in
Schedule 3.01(a) and all buildings, structures, fixtures and other improvements
thereon (all of the property described in this clause (a) other than the TXU Gas
Excluded Assets is the "Real Property");

          (b) All right, title and interest of TXU Gas in all equipment
(including, without limitation, compressors, pumps, motors, dehydrators,
treaters, vessels, machinery, vehicles, trailers, towers, fences, power and
communications lines, tools, lubricants, materials, supplies and spare-parts
and computer hardware, and the lessee's interest in any equipment leased by TXU
Gas), pipelines, pipes, meters, fixtures and improvements and other items of
tangible personal property currently located on or primarily used or held for
use in connection with the ownership or operation of the Real Property,
including (without limitation) those described in Schedule 3.01(b) (all personal
property described in this clause (b) other than the TXU Gas Excluded Assets is
the "Personal Property");

          (c) All right, title and interest of TXU Gas in and to any and all of
the contracts and agreements entered or held in connection with TXU Gas'
ownership or operation of the Real Property or the Personal Property or the
conduct of the Business: including (without limitation) all municipal franchise
agreements, gas purchase agreements, plant construction and operating
agreements, gas sales contracts, gas gathering agreements, gas transportation
contracts, gas processing agreements, natural gas liquids sales, transportation
and fractionation agreements, and equipment lease agreements, and all other
related contracts and agreements and rights to receive imbalances, including
(without limitation) those described in Schedule 3.01(c) (all of the contracts
and agreements described in this clause (c) other than the TXU Gas Excluded
Assets are the "Operating Contracts");

                                       3
<PAGE>

          (d) All natural gas and other hydrocarbons owned by TXU Gas, located
on, in storage for or in transit to the Real Property or the Personal Property
or as to which TXU Gas has any right (including without limitation rights to
imbalance gas or over-deliveries of gas); all trade receivables and, except for
items identified as Excluded Current Assets, all other items of the type listed
as "Current assets" in the Pro Forma Balance Sheet owned by TXU Gas;

          (e) All franchises, licenses, permits, consents, approvals and
authorizations of all Governmental Authorities owned or otherwise held by TXU
Gas for the ownership or operation of the Real Property or the Personal Property
or the conduct of the Business, including (without limitation) those described
in Schedule 5.05;

          (f) All right, title and interest of TXU Gas in and to any computer
software and licenses related thereto and all trade secrets, inventions,
patents, trademarks and tradenames (including the name and mark "Lone Star Gas"
and all variations of such name and all related marks), trade dress, service
marks, copyrights, creative works and other rights of authorship, and other
industrial or intellectual property rights (and all registrations, filings and
applications therefor and all rights appurtenant thereto) that are presently or
previously used in the ownership or operation of the Real Property or the
Personal Property or the conduct of the Business, but excluding, however, the
TXU Gas Excluded Assets, the TXU Gas' CAAPS software and the financial and
warehouse inventory software used by TXU Gas ("Intellectual Property");

          (g) All suspense funds held by TXU Gas arising from the Operating
Contracts, except funds (if any) held by TXU Gas that are the subject of the
litigation disclosed in Schedule 5.10 and TXU Gas Retained Liabilities
("Transferred Suspense Funds");

          (h) All existing customer, supplier, counterparty, employee,
financial, engineering, operating, accounting, tax, contract, environmental,
safety, maintenance, legal (other than those that pertain to liabilities or
litigation retained by TXU Gas hereunder), marketing, and other data, files,
computer tapes and discs, documents, instruments, notes, papers, books and
records of TXU Gas in TXU Gas' possession that relate materially to the
ownership or operation of the Real Property or the Personal Property or the
conduct of the Business, including (without limitation) deeds, property records,
title policies, drawings, records, maps, charts, surveys, prints, franchises,
permits, certificates, filings with Governmental Authorities, reports, process
safety management records, and records regarding construction, maintenance and
testing, together with copies of books of account, budgets, and financial
records (collectively, except for the TXU Gas Excluded Assets, the "Books and
Records");

          (i) To the extent that they relate to the TXU Gas Merger Assets or the
TXU Gas Merger Liabilities, all of TXU Gas' causes of action, judgments, claims
and demands of whatever nature against third parties (including, without
limitation, unexpired manufacturer's equipment or construction warranties) and
attributable to any period before or after the Effective Time.

                                       4
<PAGE>

          (j) To the extent that they relate to the TXU Gas Merger Assets, the
Business or the TXU Gas Merger Liabilities, the benefit of, any claims under, or
any rights of TXU Gas under any insurance policies in effect before the Closing
Date; and

          (k) All other assets, property rights and interests of every type and
description, real, personal or mixed, tangible or intangible, above ground or
below ground, and whether or not contingent, of TXU Gas necessary for or
relating exclusively or primarily to the Business, except for the TXU Gas
Excluded Assets.

     Section 3.02. TXU Gas Excluded Assets and TXU Gas Retained Liabilities. All
of the real estate and other property of TXU Gas identified below in this
Section 3.02 (the "TXU Gas Excluded Assets") shall continue to be possessed by
and vested in TXU Gas, and all the TXU Gas Retained Liabilities shall continue
to be liabilities and obligations of TXU Gas all without further act or deed and
shall be paid, performed and discharged solely by TXU Gas. The TXU Gas Excluded
Assets shall include the following items:

          (a) The name "TXU Gas Company," or any variations thereof;

          (b) All Excluded Current Assets other than the Transferred Suspense
Funds;

          (c) Any Tax refunds and offsets attributable to any period before the
Effective Time;

          (d) Any intercompany account accrued before the Effective Time that
reflects any amount due and owing to TXU Gas by any of TXU Gas' Affiliates;

          (e) Except to the extent that they relate to the TXU Gas Merger
Assets, the Business or TXU Gas Merger Liabilities, all of TXU Gas' causes of
action, judgments, Claims and demands of whatever nature against third parties
and attributable to the period prior to the Effective Time; including those
applicable to any period or periods extending both before and after the
Effective Time;

         (f) The assets described in Schedule 3.02;

         (g) Except as provided in Section 3.01(j), all insurance policies and
benefits thereunder of TXU Gas, including those policies and benefits relating
to the TXU Gas Excluded Assets or the TXU Gas Retained Liabilities;

         (h) All of TXU Gas' Tax Returns, books of account, budgets and
financial records, and copies of credit files, employee and payroll records,
and customer lists;

         (i) the Excluded Subsidiaries;

                                       5
<PAGE>

         (j) Provided that such use does not interfere with LSG's business, and
subject to LSG's written consent which may not be unreasonably withheld (but
which may be conditioned upon the provision of insurance coverage and other
customary terms of use), a non-exclusive, perpetual, paid-up, limited license
to use any right-of-way or easement, whether or not currently in writing or
recorded, upon which TXU Gas Excluded Assets are located or upon which
pipelines, electric lines, or other facilities of TXU Gas' Affiliates are
located, for the continued use, operation, installation and replacement of
pipelines or any facilities of TXU Gas Affiliates currently located on such
properties; and

         (k) All other assets, property and rights of TXU Gas not identified
herein as a TXU Gas Merger Asset.

     Section 3.03. LSG Merger Assets. Subject to the provisions set forth in
Section 4.06 and Section 4.07, at Closing, the total amount of cash of LSG equal
to the LSG Merger Assets shall be allocated to, be possessed by, and vest in TXU
Gas.

     Section 3.04. LSG Excluded Assets and LSG Retained Liabilities. All of the
real estate and other property of LSG that is not designated as LSG Merger
Assets (the "LSG Excluded Assets") shall continue to be possessed by and vested
in LSG, and all of the liabilities and obligations of LSG, whether arising or
accruing prior to or after the Effective Time (the "LSG Retained Liabilities"),
shall continue to be liabilities and obligations of LSG, all without further act
or deed. No liabilities or obligations of LSG shall be allocated to or assumed
by TXU Gas in the Merger. IT IS THE EXPRESS INTENTION OF THE PARTIES HERETO THAT
THE MERGER SHALL HAVE NO EFFECT ON ANY OF THE REAL ESTATE, OTHER PROPERTY,
LIABILITIES OR OBLIGATIONS OF LSG NOT SPECIFICALLY DESIGNATED AS LSG MERGER
ASSETS.

     Section 3.05. Status and Conversion of Securities. By virtue of the Merger
and without further act or deed on the part of any of the Parties:

          (a) TXU Gas. At the Effective Time, each share of the capital stock of
TXU Gas issued and outstanding immediately prior to the Effective Time shall
remain issued and outstanding from and after the Effective Time.

          (b) LSG. At the Effective Time, each share of the capital stock of LSG
issued and outstanding immediately prior to the Effective Time shall remain
issued and outstanding from and after the Effective Time.

     Section 3.06. Dissenters' Rights; Redemption. (a) Each of TXU Gas and LSG,
as the Surviving Companies of the Merger, agree to be liable for the payment of
the fair value of any shares held by their respective shareholders who comply
with Article 5.12 of the Texas Law relating to the rights of a dissenting
shareholder.

          (b) On the Closing Date, TXU Gas shall call for redemption all of its
Adjustable Rate Cumulative Preferred Stock, Series F, and shall thereafter
retain sufficient cash to pay the full redemption price thereof in accordance
with the terms of such shares.

                                       6
<PAGE>

     Section 3.07. Consents to Assignment. This Agreement does not constitute an
agreement to assign a particular asset, right-of-way, easement, contract,
agreement, Permit or Environmental Permit constituting TXU Gas Merger Assets or
any claim or right or any benefit arising thereunder or resulting therefrom,
except as represented and warranted herein. To the extent that the Closing of
the Merger would cause TXU Gas to be in violation of a licensing or other law or
of any prohibition on assignment of that particular TXU Gas Merger Asset (herein
called a "Transfer Requirement"), which is represented and warranted herein to
be required or as to which no such representation or warranty is required
herein, TXU Gas and LSG will use Reasonable Efforts to obtain before Closing all
consents, waivers, authorizations and approvals that may be asserted by any
Person to be required to permit the Closing of the Merger or the allocation of
the TXU Gas Merger Assets, or any claim or right or benefit arising thereunder
or resulting therefrom, without violating such Transfer Requirement.
Nevertheless, if despite such Reasonable Efforts, TXU Gas is unable to satisfy
such Transfer Requirement asserted by any Person to be applicable to the Closing
of the Merger or necessary for the allocation of any such TXU Gas Merger Asset,
or any claim or right or benefit arising thereunder or resulting therefrom by
Closing then: (a) from and after the Closing, TXU Gas will deliver to LSG the
revenues and other benefits from, and pay the costs and expenses required to be
paid with respect to, such TXU Gas Merger Asset, (b) LSG will reimburse TXU Gas
for or discharge TXU Gas' obligations to the extent they are TXU Gas Merger
Liabilities with respect to such TXU Gas Merger Asset, (c) upon LSG's written
request, TXU Gas will enforce for the benefit of LSG at LSG's sole cost and
expense, any and all rights of TXU Gas against a third party with respect to
such TXU Gas Merger Asset, and (d) LSG will indemnify and hold TXU Gas harmless
with respect to any TXU Gas Merger Liabilities arising with respect to such TXU
Gas Merger Asset, except to the extent resulting from TXU Gas' gross negligence,
willful misconduct or breach of this Agreement. Nothing in this Section 3.07 is
intended to satisfy any closing condition in Section 8.01.

                                   ARTICLE IV
                   MERGER CONSIDERATION; CLOSING; ADJUSTMENTS

     Section 4.01. Acknowledgement of Consideration for Merger. Each Party
acknowledges and agrees that the manner and basis of allocating and vesting the
real estate, other property, liabilities and obligations of TXU Gas and LSG, as
set forth in Article III, are sufficient and adequate consideration for each
such Party with respect to the Merger.

     Section 4.02. Closing. The closing of the transactions contemplated by this
Agreement (the "Closing") will take place at 10:00 a.m. at the offices of Hunton
& Williams LLP, 1601 Bryan Street, 30th Floor, Dallas, Texas 75201 on the first
(1st) business day of the first month that is at least five (5) business days
after all of the conditions to the Closing set forth in Sections 8.01 and 8.02
(other than the conditions to be satisfied on such day) have been satisfied. The
date on which the Closing occurs is referred to in this Agreement as the
"Closing Date." The effective time of the Closing and the Merger will be at 9:00
a.m. on the Closing Date (the "Effective Time").

                                       7
<PAGE>

     Section 4.03.  Closing Deliveries by TXU Gas.  At the Closing, TXU Gas
shall deliver or cause to be delivered to LSG:

          (a) a true and complete copy, certified by the secretary or an
assistant secretary of TXU Gas, of the resolutions duly and validly adopted
by the Board of Directors of TXU Gas evidencing the authorization of the
execution and delivery of this Agreement and the ancillary agreements to
which it is a party and the consummation of the transactions contemplated
thereby;

          (b) a true and complete copy, certified by the secretary or an
assistant secretary of TXU Corp. of the resolutions duly and validly adopted by
TXU Corp., as TXU Gas' sole common shareholder, evidencing its consent to TXU
Gas' execution and delivery of this Agreement and the ancillary agreements to
which it is a party and the consummation of the transactions contemplated
thereby;

          (c) a certificate of the secretary or an assistant secretary of TXU
Gas certifying the names and signatures of the officers of TXU Gas authorized
to sign this Agreement and the ancillary agreements and the other documents to
be delivered hereunder or thereunder;

          (d) the various certificates, instruments and documents referred to
in Section 8.01;

          (e) original counterparts of the Transitional Services Agreements
substantially in the forms attached as Exhibits B-1, B-2, B-3 and B-4, signed
by TXU Gas or TXU Gas' Affiliates;

          (f) a FIRPTA Affidavit;

          (g) a TXU Gas Parent Guaranty substantially in the form attached
hereto as Exhibit C-2 together with certified authorizing resolutions; and

          (h) any other duly signed and acknowledged (if appropriate) agreements
and instruments provided for in this Agreement or mutually agreeable to the
Parties to effectuate the transactions contemplated hereby.

     Section 4.04. Closing Deliveries by LSG. At the Closing, LSG shall deliver
or cause to be delivered to TXU Gas:

          (a) the LSG Merger Assets, as adjusted as of the time of Closing
pursuant to Section 4.06 (and as determined pursuant to Section 4.06(b), the
"Closing LSG Merger Assets"), by wire transfer in immediately available funds
to the bank account specified by TXU Gas in writing at least one (1) business
day before Closing;

          (b) a true and complete copy, certified by the secretary or an
assistant secretary of LSG, of the resolutions duly and validly adopted by the
Board of Directors of LSG evidencing the authorization of the execution and
delivery of this Agreement and the ancillary agreements to which it is a party
and the consummation of the transactions contemplated thereby;

                                       8
<PAGE>

          (c) a true and complete copy, certified by the secretary or an
assistant secretary of LSG Parent of the resolutions duly and validly adopted by
LSG Parent, as LSG's sole common shareholder, evidencing its consent to LSG's
execution and delivery of this Agreement and the ancillary agreements to which
it is a party and the consummation of the transactions contemplated thereby;

          (d) a certificate of the secretary or an assistant secretary of LSG
certifying the names and signatures of the officers of LSG authorized to sign
this Agreement and the ancillary agreements and the other documents to be
delivered hereunder or thereunder;

          (e) the various certificates, instruments and documents referred to
in Section 8.02;

          (f) original counterparts of the Transitional Services Agreements in
the form attached as Exhibits B-1, B-2, B-3 and B-4, signed by LSG or LSG
Parent;

          (g) any other duly executed and acknowledged (if appropriate)
agreements or instruments provided for in this Agreement or mutually agreeable
to the Parties to effectuate the transactions contemplated hereby.

      Section 4.05. Books and Records Transfer. TXU Gas shall deliver all Books
and Records in its possession with respect to the TXU Gas Merger Assets or the
Business to LSG as soon as practicable after Closing. Notwithstanding the
foregoing, TXU Gas shall deliver all books of account, accounting records and
operating records not later than 30 days after Closing, subject to the following
provisions:

          (a) TXU Gas may retain copies of all Books and Records that are
delivered to LSG;

          (b) TXU Gas may retain (with LSG to have access thereto and the right
to make copies thereof) all consolidating and consolidated financial information
and all other accounting Books and Records prepared or used in connection with:
(1) the preparation of financial statements of TXU Gas and/or its Affiliates
and (2) the preparation and filing of any Tax Returns; and

          (c) TXU Gas is not obligated to deliver files, records or documents
that (i) relate to matters or issues for which TXU Gas has retained sole
responsibility, except for copies of personnel, benefit and payroll files
relating to Transitioned Employees employed by LSG (that have consented to TXU
Gas' delivery of such files) (copies of which TXU Gas may retain) or (ii) are
protected by legal privilege claimed by TXU Gas' Affiliates as to matters
unrelated to TXU Gas, provided that to the extent that such files, records or
documents also contain information that is not privileged to TXU Gas' Affiliate,
TXU Gas shall redact such information protected by legal privilege to the extent
possible, and deliver such information in redacted form.

                                       9
<PAGE>

      Section 4.06. Preliminary Statement of Working Capital; Final Statement of
Working Capital; Adjustment of LSG Merger Assets.

          (a) At Closing, the LSG Merger Assets shall be: (i) decreased by the
amount (if any) by which the Pro Forma Balance Sheet Working Capital exceeds the
Preliminary Working Capital; or (ii) increased by the amount (if any) by which
the Preliminary Working Capital exceeds the Pro Forma Balance Sheet Working
Capital; and (iii) increased by the amount of the capital expenditures paid by
TXU Gas under Section 7.01(g) in excess of the Capital Expenditures Budget.

          (b) At least five (5) business days prior to the Closing Date, TXU Gas
shall prepare in good faith and deliver to LSG, a statement (the "Preliminary
Statement of Working Capital") estimating the Preliminary Working Capital of TXU
Gas as of the Closing Date (together with supporting documentation used by TXU
Gas in calculating such amounts), which shall be prepared (i) in accordance with
GAAP applied on a basis consistent with the past practice of the Company, and
(ii) in a manner consistent with the Pro Forma Balance Sheet. The Parties shall
use Reasonable Efforts to agree upon and, to the extent (if any) required by the
Parties' agreement, revise the amounts shown on the Preliminary Statement of
Working Capital not later than one (1) business day before the Closing. Any such
agreement shall be without prejudice to the rights of the Parties under the
other provisions of this Section 4.06. In the event the Parties are unable to
agree upon the Preliminary Statement of Working Capital, they shall nonetheless
be required to close based upon the Preliminary Statement of Working Capital,
and any objections thereto shall be resolved in accordance with Section 4.06(c).

          (c) Within sixty (60) days after the Closing Date, TXU Gas shall
prepare and deliver to LSG a draft ("Final Statement of Working Capital")
setting forth the Final Working Capital (together with supporting documentation
used by TXU Gas in calculating such amounts), which shall be prepared (i) in
accordance with GAAP applied on a basis consistent with the past practice of the
Company, and (ii) in a manner consistent with the Pro Forma Balance Sheet. If
LSG has no objections to the draft Final Statement of Working Capital, such
draft shall constitute the Final Statement of Working Capital. If LSG has any
objections to the draft Final Statement of Working Capital, it shall deliver a
detailed statement describing its objections (the "Statement of Objections") to
TXU Gas within fifteen (15) days after receiving the draft Final Statement of
Working Capital. TXU Gas and LSG will use Reasonable Efforts to resolve any such
objections. If a final resolution is not obtained within thirty (30) days after
TXU Gas has received the Statement of Objections, TXU Gas and LSG will promptly
thereafter cause PricewaterhouseCoopers (the "Accounting Referee"), promptly to
review this Agreement, the Statement of Objections and the disputed items or
amounts for the purpose of calculating Final Working Capital. The Accounting
Referee shall deliver to TXU Gas and LSG, as promptly as practicable, a report
setting forth such calculation. Such report shall be final and binding upon TXU
Gas and LSG. The cost of such review and report by the Accounting Referee shall
be borne equally by TXU Gas and LSG.

                                       10
<PAGE>

          (d) In the event that it is finally resolved pursuant to Section
4.06(c) (whether by agreement of TXU Gas and LSG, or as determined by the
Accounting Referee) that the amount of the Final Working Capital is less than
the amount set forth in the Preliminary Statement of Working Capital, as revised
prior to the Closing, then TXU Gas shall pay to LSG an amount equal to the
difference between the Preliminary Working Capital and the Final Working
Capital. In the event that it is finally resolved pursuant to Section 4.06(c)
(whether by agreement of TXU Gas and LSG, or as determined by the Accounting
Referee) that the amount of the Final Working Capital is more than the amount
set forth in the Preliminary Statement of Working Capital, as revised prior to
the Closing, then LSG shall pay to TXU Gas an amount equal to the difference
between the Preliminary Working Capital and the Final Working Capital. Any
payment required to be made by TXU Gas or LSG hereunder shall be made within
five (5) days of final resolution of the amount owed (whether by agreement of
TXU Gas and LSG, or as determined by the Accounting Referee) by wire transfer
of immediately available funds to an account designated in writing by the Party
owed such amount, together with interest at the Agreed Rate.

      Section 4.07. Allocation of Agreed Value. The Parties agree to report the
federal, state and other tax consequences of the transaction contemplated by
this Agreement in a manner consistent with the allocation set forth on Schedule
4.07 (the "Allocation Schedule") to be prepared in accordance with the Internal
Revenue Code of 1986, as amended and applicable regulations. LSG and TXU Gas
will promptly inform one another of any challenge by any Tax Authority to any
allocation made pursuant to this section and agree to consult with and keep one
another informed with respect to the status of, and any discussion, proposal or
submission with respect to, such challenge. LSG and TXU Gas agree to promptly
provide the other party with any additional information and reasonable
assistance required to complete Form 8594 or compute Taxes arising in connection
with (or otherwise affected by) the transactions contemplated by this Agreement.

                                   ARTICLE V
                    REPRESENTATIONS AND WARRANTIES OF TXU GAS

         Except as set forth in the schedules attached to this Agreement, TXU
Gas represents and warrants to LSG that the statements contained in this Article
V are true and correct as of the date of this Agreement and that such
statements, as of the Closing Date (as though made on the Closing Date), to the
extent not qualified by materiality, will be true and correct in all material
respects, and, to the extent qualified by materiality, will be true and correct.
Disclosure of an item in any Schedule is disclosure of such item for any other
purpose under this Agreement if such other purpose is reasonably apparent from
the disclosure. The Schedules may be updated and revised as of the Closing Date
in accordance with Section 11.09.

         Section 5.01. Organization and Corporate Power. TXU Gas is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Texas. TXU Gas is duly qualified to do business and is in good
standing in Texas, the only jurisdiction in which qualification to do business
is required. TXU Gas has full power and authority to carry on its business and
to execute and deliver and carry out the transactions contemplated by this
Agreement. TXU Parent owns beneficially and of record all of the issued and
outstanding common stock in TXU Gas. TXU Gas does not own any equity interest
in any Person other than the Excluded Subsidiaries and subsidiaries of the
Excluded Subsidiaries.

                                       11
<PAGE>

          Section 5.02. Authorization of Agreement and Transaction. The
execution, delivery and performance of this Agreement by TXU Gas has been duly
authorized by all necessary corporate action on the part of TXU Gas, and this
Agreement constitutes a valid and binding obligation of TXU Gas, enforceable in
accordance with its terms, subject to applicable bankruptcy, reorganization,
insolvency, moratorium, fraudulent conveyance and other laws affecting
creditors' rights generally from time to time in effect and to general equitable
principles (whether considered in a proceeding at law or in equity).

          Section 5.03. No Contravention; Compliance With Law; Authorization.
(a) Neither the execution and delivery of this Agreement by TXU Gas, nor the
consummation of the transactions contemplated hereby by TXU Gas will (assuming
compliance with all Transfer Requirements): (i) violate or breach the terms of,
cause a default under, conflict with, result in acceleration of, create in any
party the right to accelerate, terminate, modify or cancel, or require any
notice under: (A) the charter or bylaws of TXU Gas, or (B) any Material
Contract; (ii) except as provided in Schedule 5.03, create a default under the
terms of any note or
debenture of TXU Gas or result in the creation or imposition of any Encumbrance
(other than a Permitted Encumbrance) on any of the TXU Gas Merger Assets; (iii)
result in the violation of any law or order of any Governmental Authority having
jurisdiction over TXU Gas or TXU Gas Parent; except, in the case of clauses
(i)(B) through (iii), where such violation, conflict, breach, default,
acceleration, termination, modification, cancellation, Claim, encumbrance,
forfeiture, suspension, revocation or lien is not reasonably likely to have a
Material Adverse Effect, or materially impair the ability of TXU Gas to
consummate the transactions contemplated by this Agreement.

            (b) Except any Transfer Requirement identified on Schedule 5.16 and
the required filings under the HSR Act, TXU Gas is not required to make any
filing with or obtain any authorization, consent or approval of any Governmental
Authority in order for the Parties to consummate the transactions contemplated
by this Agreement, except where the failure to take such action would not be
material to the ownership or operation of the TXU Gas Merger Assets taken as a
whole or the conduct of the Business, or materially impair the ability of the
Parties to consummate the transactions contemplated by this Agreement.

          Section 5.04. Financial Statements. (a) TXU Gas has delivered to LSG
TXU Gas' Forms 10-K containing its audited financial statements for its Fiscal
Years Ended December 31, 2001, 2002 and 2003, and its Form 10-Q containing its
unaudited financial statements for its first quarter ended March 31, 2004, as
filed with the SEC. The audited and unaudited financial statements are referred
to as the "Financial Statements". The Forms 10-K and 10-Q containing the
Financial Statements are referred to as the "SEC Reports." Except as may
otherwise be included in the notes thereto, the Financial Statements are true,
correct and complete in all material respects and have been prepared in
accordance with GAAP. The Financial Statements present fairly, in all material
respects, the financial condition, the results of operations and cash flows for

                                       12
<PAGE>

TXU Gas as of and for the periods ended on their respective dates. TXU Gas is in
compliance, in all material respects, with the requirements of Section 13(b)(2)
of the Securities Exchange Act of 1934, as amended (the "Exchange Act"),
including the maintenance of an adequate system of internal controls. Deloitte &
Touche LLP, which reported on the audited Financial Statements, are independent
public accountants with respect to TXU Gas and its Affiliates as required by the
Exchange Act and, to TXU Gas' Knowledge, are not in violation of the auditor
independence requirements of the Sarbanes-Oxley Act of 2002.

            (b) There is no liability or obligation (whether known or unknown
and whether absolute, accrued, contingent or otherwise) of TXU Gas that has a
Material Adverse Effect and that is not within one or more of the following:
(i) TXU Gas Retained Liabilities, (ii) liabilities and obligations reflected in
the Pro Forma Balance Sheet, (iii) liabilities and obligations arising since
March 31, 2004, in the Ordinary Course of Business; (iv) liabilities and
obligations relating to or arising from matters disclosed in the Schedules
hereto; or (v) disclosed in any SEC Reports.

            (c) Except for actions taken in connection with this Agreement
(which have not been materially adverse to TXU Gas), since March 31, 2004,
(i) TXU Gas has conducted the Business only in the Ordinary Course of Business
in all material respects; and (ii) no Casualty has occurred, other than
Casualties of which TXU Gas has provided notice under Section 7.10; and
(iii) no Material Adverse Effect has occurred that is continuing.

            (d) The SEC Reports (i) were prepared in all material respects in
accordance with the requirements of the Exchange Act and (ii) did not at the
time they were filed (or if amended or superceded by a filing prior to the date
of this Agreement, then on the date of such filing) 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 therein, in light of the
circumstances under which they were made, not misleading.

          Section 5.05. Permits. TXU Gas owns or holds the franchises, licenses,
permits, consents, certificates, approvals and authorizations of Governmental
Authorities identified in Schedule 5.05 ("Permits"). The Permits, together with
the Environmental Permits, are the only such items that are necessary for TXU
Gas to own, lease and operate the Real Property and the Personal Property and to
conduct the Business as now conducted, other than such failures that have not
had a Material Adverse Effect. Each Permit is in full force and effect, and TXU
Gas is in compliance with all of its obligations with respect thereto, except
where the failure to be in full force and effect or to be in compliance does not
have a Material Adverse Effect. To the Knowledge of TXU Gas, no event has
occurred that causes, or upon the giving of notice or the lapse of time or
otherwise would cause, the adverse modification, revocation or termination of
any Permit, except such as in the aggregate would not have a Material Adverse
Effect. All Permits shall be, subject to the Permitted Encumbrances: (i) owned
or held as of the Closing by TXU Gas, and (ii) allocated by TXU Gas to LSG,
assuming receipt of the consents, approvals, authorizations, and waivers
identified on Schedule 5.16 applicable to such Permits.

                                       13
<PAGE>

          Section 5.06. Title to the Assets. Except as set forth in Schedule
5.06 and except for Permitted Encumbrances: (i) TXU Gas has, and at Closing LSG
will obtain indefeasible title to the Real Property; and (ii) the Real Property
and the Personal Property are free and clear of all Encumbrances arising by,
through and under TXU Gas. Except for assets and properties disposed of in the
Ordinary Course of Business, TXU Gas Excluded Assets and assets and properties
used in the provision of the services under the Transitional Services
Agreements, the TXU Gas Merger Assets include all of the assets and properties
used by TXU Gas to conduct the Business as conducted by TXU Gas as of the date
hereof.

          Section 5.07. Condition of Property. The TXU Gas Merger Assets are
being delivered by TXU Gas and, at Closing, will be accepted by LSG AS IS,
WHERE IS, WITH ALL FAULTS, WITHOUT ANY EXPRESS OR IMPLIED COVENANT, WARRANTY AS
TO TITLE, MERCHANTABILITY, PERFORMANCE, FITNESS (BOTH GENERALLY AND FOR ANY
PARTICULAR PURPOSE) OR OTHERWISE (WHICH WARRANTIES TXU GAS HEREBY EXPRESSLY
DISCLAIMS), OR RECOURSE, OTHER THAN AS EXPRESSLY SET FORTH IN THIS AGREEMENT OR
ANY CERTIFICATE DELIVERED PURSUANT HERETO.

          Section 5.08. Material Contracts. "Material Contracts" means those
Operating Contracts that: (i) other than gas purchase or gas sales contracts,
provide for receipt or payment of $300,000 or more per month; or (ii) other than
gas purchase or sale contracts, provide for total payments during their
remaining terms of more than $1,000,000, and that may not be terminated without
payment or penalty with notice of 90 days or less; or (iii) provide for the
lease of real or personal property having a fair market value of more than
$1,000,000; or (iv) gas purchase or sale contracts that are not terminable
within 12 months and that provide for the receipt or payment of more than
$5,000,000 per year. Except as set forth in Schedule 5.08, each Material
Contract is in full force and effect, except for such matters in respect of all
Material Contracts that individually, or in the aggregate, are not reasonably
likely to have a Material Adverse Effect. TXU Gas has in all respects performed
all obligations required to be performed by it under the Material Contracts,
and is not in default under any obligation of any Material Contracts, except
where the failure to perform or default is not reasonably likely to have a
Material Adverse Effect. To the Knowledge of TXU Gas, no other party to any
Material Contract is in default thereunder. TXU Gas has not assigned to any
other Person any of its rights under any Material Contract. As of the last day
of May 2004, Schedule 5.08 identifies all of the gas imbalances in excess of
60,000 MMBtu owed by or to TXU Gas and arising from the Business.

          Section 5.09. Environmental Matters.  Except as listed or described
in Schedule 5.09:

              (a) to TXU Gas' Knowledge, the TXU Gas Merger Assets, TXU Gas'
operation and ownership of the TXU Gas Merger Assets and the conduct of the
Business are: (i) not in violation of any Environmental Laws, and (ii) not
subject to any Claims pursuant to Environmental Laws, remedial obligations or
other Environmental Liabilities and Costs under any Environmental Laws, other
than such violations, Claims, obligations or other Environmental Liabilities
and Costs that are not, individually or in the aggregate, reasonably likely to
have a Material Adverse Effect;

                                       14
<PAGE>

              (b) TXU Gas possesses the environmental permits and authorizations
required by Environmental Laws for the operation and ownership of the TXU Gas
Merger Assets and the conduct of the Business (the "Environmental Permits"),
and is not in violation of the terms and conditions of such Environmental
Permits, other than such violations that are not, individually or in the
aggregate, reasonably likely to have a Material Adverse Effect; the
Environmental Permits are listed in Schedule 5.09(b); and

              (c) TXU Gas: (i) is not subject to any consent decree, compliance
order or administrative order issued pursuant to Environmental Laws or any
written request for information, notice of violation, demand letter,
administrative inquiry, or, to its Knowledge, any complaint or claim from any
Governmental Authority pursuant to Environmental Laws; and (ii) other than TXU
Gas Retained Liabilities, TXU Gas is not subject to any indemnity or other
agreement with any third party related to liability under any Environmental Law
relating to the TXU Gas Merger Assets, except customary environmental indemnity
arrangements contained in Material Contracts; and (iii) has not received written
notice under the citizen suit provision of any Environmental Law; other than
such of the foregoing that are not, individually or in the aggregate, reasonably
likely to have a Material Adverse Effect.

             (d) To TXU Gas' Knowledge, there are no circumstances or conditions
involving its current or former assets or operations that could reasonably be
expected to result in any Claims pursuant to Environmental Laws, remedial
obligations, other Environmental Liabilities and Costs under any Environmental
Laws or restrictions on the ownership, operation, use or transfer of any of the
TXU Gas Merger Assets pursuant to any Environmental Law except such as would be
reasonably expected to not have a Material Adverse Effect.

          Section 5.10. Litigation. Except as disclosed in Schedule 5.10, there
are no actions at law, suits in equity, investigations, proceedings or Claims
pending (or, to the Knowledge of TXU Gas, threatened) against TXU Gas or
affecting the Business or any of the TXU Gas Merger Assets before or by any
federal, state, foreign or local court, tribunal, arbitrator or governmental
agency or authority.

          Section 5.11. Gas Regulatory Matters. (a) TXU Gas is not subject to
the jurisdiction of the Federal Energy Regulatory Commission ("FERC") under the
Natural Gas Act of 1938, as amended. TXU Gas does engage in transactions
pursuant to Section 311(a) of the Natural Gas Policy Act of 1978. TXU Gas and
TXU Gas Parent (and any Affiliates thereof) are exempt from the provisions of
the Public Utility Holding Company Act of 1935, as amended, and the rules and
regulations thereunder, except for Section 9(a)(2) by reason of Section 3(a)(1)
and Section 33 of such Act.

             (b) All filings required to be made by TXU Gas or, to TXU Gas'
Knowledge, by its Affiliates with respect to the Business or the TXU Gas Merger
Assets under applicable Laws have been made and are in compliance with such
Laws, except as has not had or would reasonably be expected not to have a
Material Adverse Effect.

                                       15
<PAGE>

             (c) TXU Gas is in compliance with all Laws applicable to the TXU
Gas Merger Assets or the Business (including without limitation those applicable
to TXU Gas with respect to its employees) and, to TXU Gas' Knowledge, with
respect to each of its Affiliates, is in compliance with all Laws applicable to
any employees whose services are primarily dedicated to TXU Gas and who will be
Transitioned Employees, except as has not had or would reasonably be expected
not to have a Material Adverse Effect.

          Section 5.12. Brokers' Fees. TXU Gas has no liability or obligation to
pay any fees or commissions to any broker, finder, or agent with respect to the
transactions contemplated by this Agreement that will be binding on LSG or the
TXU Gas Merger Assets.

          Section 5.13. Foreign Investor in Real Property Tax Act (FIRPTA). TXU
Gas is not a "foreign person" within the meaning of Treasury Regulations section
1.1445-2(b).

          Section 5.14. No Bankruptcy. There is no bankruptcy, reorganization,
or arrangement proceedings pending, being contemplated by or threatened against
TXU Gas or TXU Gas Parent.

          Section 5.15. Labor Matters. TXU Gas is not, nor is any of its
Affiliates with respect to Transitioned Employees, a party to, or bound by, any
written or oral collective bargaining agreement or other agreement with any
labor union or organization. To the Knowledge of TXU Gas, there are currently
no labor disputes (other than routine individual grievances) or attempts to
organize employees for collective bargaining purposes with respect to
Transitioned Employees, and there is no pending or, to the Knowledge of TXU Gas,
threatened unfair labor practice complaints before the National Labor Relations
Board with respect to any Transitioned Employees.

          Section 5.16. Certain Transfer Requirements. Schedule 5.16 sets forth
each Material Contract and each material Permit or Environmental Permit that may
require a consent or other similar action by any Person as a result of the
execution, delivery and performance or consummation of the transactions
contemplated hereby.

          Section 5.17. Tax Matters. Except as set forth in Schedule 5.17:
(i) TXU Gas has filed (or has had filed on its behalf) all Tax Returns required
to be filed, has paid all Taxes due as reflected on such Tax Returns, and, to
TXU Gas' Knowledge, all such Tax Returns are complete and correct in all
material respects; (ii) there is no action, suit, investigation, audit, or
written Claim or assessment pending, or to TXU Gas's Knowledge, threatened,
with respect to Taxes the non-payment of which could give rise to a lien upon
any of the TXU Gas Merger Assets; (iii) there is not in force any waiver of any
statute of limitations in respect of such Taxes, or any outstanding request for
such a waiver; (iv) there is not in force any extension of time for the
assessment or payment of any such Tax; and (v) there are no liens with respect
to Taxes upon the TXU Gas Merger Assets except for liens for Taxes not yet due
or for Taxes TXU Gas is contesting in good faith through appropriate
proceedings.

          Section 5.18. Employee Benefit Plans; ERISA. Except as set forth on
Schedule 5.18, there are no pending or, to the Knowledge of TXU Gas, threatened
Claims and no pending or, to the Knowledge of TXU Gas, threatened litigation
with respect to any employee benefit plans of TXU Gas, other than ordinary and
usual claims for benefits by participants and beneficiaries. Except as set forth
in Schedule 5.18, no audit or investigation by a Governmental Authority with
respect to any of such employee benefit plans is pending nor has TXU Gas
received formal notice of any such audit or investigation. The TXU Thrift Plan
has received one or more favorable determination letters from the Internal
Revenue Service as to its tax qualified status under Sections 401(a) and 501(a)
of the Internal Revenue Code of 1986, as amended and to the Knowledge of TXU
Gas, nothing has occurred that could reasonably be expected to jeopardize such
tax qualified status.

                                       16
<PAGE>

          Section 5.19. Insurance. Schedule 5.19 sets forth a list of all
material insurance policies presently in effect with respect to TXU Gas or TXU
Gas Merger Assets. All material insurance policies covering TXU Gas or TXU Gas
Merger Assets are in full force and effect in accordance with their terms, all
premiums due and payable have been paid and no notice of cancellation of such
polices has been received. All such insurance policies will terminate with
respect to TXU Gas and TXU Gas Merger Assets at Closing as to periods after
Closing.

          Section 5.20. Transactions with Affiliates. Except for the
intercompany arrangements being terminated at Closing, each of which is set
forth in Schedule 5.20, and except as provided in Section 5.20, TXU Gas does
not have any transactions, agreements, arrangements or understandings with any
officer, director, shareholder or other Affiliate of TXU Gas, and no officer,
director, shareholder of TXU Gas or other Affiliate of TXU Gas other than
TXU Gas has any interest in any of TXU Gas Merger Assets or any other asset
required for the conduct of the Business as currently conducted, except as for
assets utilized in providing the Transitional Services Agreements.

          Section 5.21. Excluded Subsidiaries.  The Excluded Subsidiaries are
immaterial to the Business.

                                   ARTICLE VI
                      REPRESENTATIONS AND WARRANTIES OF LSG

         LSG hereby represents and warrants to TXU Gas that the statements
contained in this Article VI are true and correct as of the date of this
Agreement and will be true and correct as of the Closing Date (as though made on
the Closing Date).

         Section 6.01. Organization and Corporate Power. LSG is a Texas
corporation duly organized, validly existing and in good standing under the
laws of the State of Texas. LSG Parent is a corporation duly organized, validly
existing in good standing under the laws of the State of Texas and the
Commonwealth of Virginia and is in good standing as a corporation and is
authorized to do business in all jurisdictions where the nature of its
properties or business requires it. LSG and LSG Parent have full power and
authority to carry on the business in which they are engaged and to execute and
deliver and carry out the transactions contemplated by this Agreement.

                                       17
<PAGE>

         Section 6.02. Authority and Binding Obligations. LSG and LSG Parent
have the corporate power and authority to execute, deliver and perform their
obligations under this Agreement and, with respect to LSG Parent, the LSG Parent
Guaranty. The execution, delivery, and performance of this Agreement and, with
respect to LSG Parent, the LSG Parent Guaranty, LSG and LSG Parent have been
duly and validly authorized by all necessary corporate action and do not
conflict or result in a violation or breach of the articles of incorporation
and by-laws of LSG and LSG Parent. This Agreement and the LSG Parent Guaranty
constitute legal, valid and binding obligations of LSG and LSG Parent, as
applicable, enforceable against LSG and LSG Parent in accordance with their
terms, except as the enforceability thereof may be limited by bankruptcy,
insolvency, reorganization, moratorium or other similar laws affecting
creditors' rights generally and general principles of equity (regardless of
whether enforceability is considered in a proceeding at law or equity).

         Section 6.03. Litigation. There are no lawsuits, actions, arbitrations
or other proceedings pending or, to the Knowledge of LSG or LSG Parent,
threatened by any Person against or affecting LSG or LSG Parent by or before
any court, arbitrator or Governmental Authority which would prohibit the
consummation of the transactions contemplated by this Agreement or LSG Parent
Guaranty.

          Section 6.04. No Contravention Compliance With Law; Authorization.

              (a) None of the execution and delivery of this Agreement or the
LSG Parent Guaranty, or the consummation of the transactions contemplated hereby
or thereby will (assuming compliance with all Transfer Requirements) violate or
conflict with, or result in the acceleration of rights, benefits or payments
under; (i) any provision of LSG or LSG Parent's constituent documents; (ii) any
statute, law, regulation or governmental order to which LSG or LSG Parent or the
assets and properties of any thereof are bound or subject; (iii) any commitment
to which LSG or LSG Parent is a party or by which it or any of its properties
may be bound or subject; and (iv) any agreement, contract or commitment of LSG
or LSG Parent to which it is a party or by which it or any of its properties may
be bound or subject, except, with respect to clauses (ii), (iii) and (iv), for
such violations and conflicts which will not (A) prevent or materially delay
consummation of the transactions contemplated by this Agreement, and the LSG
Parent Guaranty or (B) prevent LSG or LSG Parent from performing its obligations
under this Agreement and the LSG Parent Guaranty.

              (b) Except for the required filings under the HSR Act or as set
forth on Schedule 6.04(b), neither LSG nor LSG Parent is required to make any
filing with or obtain any authorization, consent, or approval of any
Governmental Authority to consummate the transactions contemplated by this
Agreement.

          Section 6.05. Financial Capacity; Future Performance. LSG Parent has
or will have the financial capacity to guaranty the payments and performance
under the LSG Parent Guaranty. LSG Parent is not aware of any facts or
circumstances that now or in the future would have a Material Adverse Effect on
its financial condition, results of operations, business, properties, assets,
or liabilities. LSG Parent is solvent, is not in the hands of a receiver, nor
is any receivership pending, and no proceedings are pending by or against it for
bankruptcy or reorganization in any state or federal court.

                                       18
<PAGE>

          Section 6.06. Funds Available. LSG or LSG Parent has sufficient cash,
or firm commitments from responsible lending institutions, available lines of
credit or other sources of available funds to enable LSG to make payment of any
amounts to be paid by it hereunder.

                                  ARTICLE VII
                            COVENANTS AND AGREEMENTS

          Section 7.01. Joint Covenants and Agreements Pending Closing.

              (a) TXU Gas shall permit LSG and its representatives, after the
date of this Agreement and before Closing to have reasonable access, during
normal business hours, upon reasonable advance notice, to the TXU Gas Merger
Assets and the contracts, books, records and data of TXU Gas or its Affiliates
related to the TXU Gas Merger Assets, as well as employees of TXU Gas who are
knowledgeable with respect to the same. Any review by LSG or its representatives
pursuant to such access may include the preparation of transition plans and
procedures of LSG and shall be conducted in such a manner as not to interfere
unreasonably with the business or operations of TXU Gas. All activities of LSG
under this Section 7.01(a) will be conducted in accordance with all applicable
laws, and LSG will indemnify and hold harmless TXU Gas and its Affiliates from
and against all Losses incurred as a result of the performance of such
activities.

              (b) From and after the date hereof, and until the Closing,
TXU Gas shall:

                  (i)  except as otherwise contemplated by this Agreement, or
consented to or approved by LSG, cause the TXU Gas Merger Assets and the
Business to be operated in all material respects in the Ordinary Course of
Business (provided that TXU Gas is not obligated to make any capital
expenditures in excess of the Capital Expenditures Budget unless LSG is
obligated to reimburse TXU Gas for such expenditures under this Agreement);

                 (ii)  cooperate with LSG to effect an orderly transition in the
operation of the TXU Gas Merger Assets and the conduct of the Business;

                 (iii) keep LSG fully advised as to all material decisions and
operating activities with respect to the TXU Gas Merger Assets and the Business
that are not in the Ordinary Course of Business; and

                 (iv) without the consent of LSG (which consent will not be
unreasonably withheld or delayed): (A) not sell, lease, license, grant any
Encumbrance (other than a Permitted Encumbrance) or otherwise dispose of or
transfer any TXU Gas Merger Assets, other than natural gas, liquids and
products pursuant to existing contracts or commitments, or otherwise in the
Ordinary Course of Business, (B) other than gas purchase, sale, or
transportation contracts entered into in the Ordinary Course of Business
(including, but not limited to monthly bids for transportation capacity,
industrial contracts implementing new tariffs, monthly and daily gas purchases

                                       19
<PAGE>

and, winter gas supply plan implementation), enter into any contracts,
agreements, leases, licenses, commitments, sale or purchase orders that are
performable after the Closing other than: (I) contracts which have terms of 60
days or less after the Closing and are entered into in the Ordinary Course of
Business or (II) those which have obligations of less than $500,000 per year
and are entered into in the Ordinary Course of Business, (C) amend any Material
Contract, other than in the Ordinary Course of Business, (D) take no other
material action (i) outside of the Ordinary Course of Business concerning the
TXU Gas Merger Assets or the Business, other than such actions as are otherwise
allowed under this Agreement or required by applicable law or to respond
reasonably to an emergency, or (ii) that would reasonably be expected to cause
the representations and warranties of TXU Gas in this Agreement as of the date
hereof not to be true and correct in all material respects as of the Closing
Date, or (E) not agree or commit to do any of the actions described in clauses
(A), (B), (C), or (D) herein.

              (c) LSG has or will conduct and complete a due diligence
investigation of the TXU Gas Merger Assets, and will make an independent
evaluation of the TXU Gas Merger Assets. LSG acknowledges that, except for the
representations and warranties made in this Agreement or any certificate or
instrument delivered pursuant hereto, it is not relying on any statements or
representations of TXU Gas or any representative of TXU Gas concerning the
condition of any of the TXU Gas Merger Assets, the present or future value of
the TXU Gas Merger Assets, or the anticipated income, costs, or profits, if any,
to be derived from the TXU Gas Merger Assets. Except as expressly provided in
this Agreement, LSG acknowledges that TXU Gas makes no representation or
warranty as to the TXU Gas Merger Assets. Except for the representations and
warranties made in this Agreement or any certificate or instrument delivered
pursuant hereto, LSG will rely upon its independent examination of the TXU Gas
Merger Assets and its independent estimates, computations, evaluations, reports
and studies based thereon. Subject only to the warranties and representations
contained in this Agreement and any certificate or instrument delivered pursuant
hereto, LSG must satisfy itself prior to the Closing as to the type, condition,
quality and extent of the TXU Gas Merger Assets and the value thereof.

              (d) TXU Gas will reasonably cooperate with LSG for LSG to obtain
licenses and permits (including, without limitation, the Permits) that it may
need in order to operate the TXU Gas Merger Assets and the conduct of the
Business after Closing.

              (e) LSG and TXU Gas shall cooperate with one another: (i) in
determining whether any action by or in respect of, or filing with, any
Governmental Authority is required, or any actions, consents, approvals, or
waivers are required to be obtained from parties to any Material Contracts, in
connection with the consummation of the transactions contemplated by this
Agreement, and (ii) in taking such actions or making such filings, furnishing
information required in connection therewith and seeking timely to obtain such
actions, consents, approvals, or waivers.

              (f) Subject to the terms and conditions of this Agreement, each
Party will use its Reasonable Efforts to take, or cause to be taken, all actions
and to do, or cause to be done, all things necessary, proper, or advisable under
applicable laws and regulations to consummate the transactions contemplated by
this Agreement.

                                       20
<PAGE>

              (g) Without obligation, TXU Gas may make commitments for and
undertake any work contemplated by the Capital Expenditures Budget attached as
Schedule 7.01(g) and any other capital projects approved by LSG.

              (h) TXU Gas shall continue to prosecute its rate case before the
Texas Railroad Commission (Gas Utilities Docket No. 9400), and any rehearings,
appeals or other proceedings related thereto, consistent with past practice,
and shall not, without LSG's consent (which shall not be unreasonably withheld),
agree to any settlement in respect thereof that is on terms less favorable than
the Final Order issued by the Texas Railroad Commission in that case on
May 25, 2004.

              (i) TXU Gas may terminate the affiliate agreements listed in
Schedule 5.20 to be terminated at or before the Closing.

              (j) Nothing contained in this Agreement, including (without
limitation) this Section 7.01 and Section 7.04, shall require LSG to make any
material payment or incur any material economic burden, dispose of any material
asset or business or suffer any material detriment, including any change in the
rate base, rate of return or allowed expenses applicable to the operation of the
TXU Gas Merger Assets or the imposition of any other materially adverse term or
condition on the ownership or operation of the TXU Gas Merger Assets or LSG or
any of its Affiliates in order to obtain any consent or approval required of
LSG pursuant to this Agreement.

          Section 7.02. Joint Covenants: Publicity. The Parties agree that a
press release may be issued by any Party on or after the execution of this
Agreement, and upon or after Closing, in either case upon prior notification to
and consultation with the other Party.

          Section 7.03. Joint Covenants: Confidentiality. (a) Prior to the
execution of this Agreement, TXU Gas and LSG Parent entered into a
confidentiality agreement, dated May 7, 2004 (the "Confidentiality Agreement"),
the provisions of which are incorporated into this Section 7.03 by reference
and accepted and agreed to by LSG. If Closing occurs, the Confidentiality
Agreement shall terminate upon Closing.

              (b) Unless otherwise agreed to in writing by LSG, for a period
commencing on the Closing Date and terminating two (2) years after such date,
TXU Gas shall (i) keep all confidential information of TXU Gas that relates to
the Business (including without limitation information with respect to the
identities, purchasing history and natural gas requirements of the distribution
customers of the Business) confidential and not disclose or reveal any such
information to any Person other than its representatives who are actively and
directly participating in the transactions contemplated hereby and who need to
know such information for such purpose and to cause those Persons and each of
their Affiliates to observe the terms of this Section 7.03(b) and (ii) except
as set forth herein, not use, or permit any Affiliate to use, such information
for the transportation or distribution of natural gas to customers of the
Business. Notwithstanding the foregoing, LSG acknowledges that Affiliates of

                                       21
<PAGE>

TXU Gas are currently engaged in the distribution and sale of electricity to
many common customers of the Business, and use of information by an Affiliate
for electric sales or distribution is not intended to be restricted. Also,
Affiliates of TXU Gas are engaged in various wholesale gas trading and sales
activities with respect to large industrial or commercial customers, and the
terms hereof do not restrict the use of information for those purposes. In
furtherance of the foregoing, but not by way of limitation, during such period
TXU Gas shall not, directly or indirectly, cause or attempt to cause any of the
customers or suppliers of the Business to terminate or materially reduce their
business with the Business or LSG or any of its Affiliates. TXU Gas shall
continue to hold all such information according to the same internal security
procedures and with the same degree of care regarding its secrecy and
confidentiality as currently applicable thereto. TXU Gas acknowledges and
agrees that LSG shall be entitled, in addition to all other remedies, to
injunctive relief and specific performance of this Section 7.03(b).

          Section 7.04.  Regulatory Filings; Hart-Scott-Rodino Filing.

              (a) TXU Gas and LSG and LSG Parent will take all commercially
reasonable actions necessary or desirable, and proceed diligently and in good
faith and use Reasonable Efforts, as promptly as practicable to obtain all
consents, approvals or actions of, to make all filings with, and to give all
notices to, Governmental Authorities, including those required filings set
forth on Schedule 6.04(b), required to accomplish the transactions contemplated
by this Agreement.

              (b) This Agreement is subject in all respects to, and conditioned
upon compliance by the Parties with, the HSR Act, to the extent that the HSR Act
is applicable to the transactions contemplated by this Agreement. The Parties
shall make any filings required under the HSR Act on or prior to fifteen (15)
days after the date hereof and provide such information to the FTC and DOJ as
is required in connection with the HSR Act as soon as practicable after a
request therefor.

              (c) Each of the Parties will (i) use Reasonable Efforts to comply
as expeditiously as possible with all lawful requests of Governmental
Authorities for additional information and documents pursuant to the HSR Act,
(ii) not (A) extend any waiting period under the HSR Act or (B) enter into any
voluntary agreement with any Governmental Authority not to consummate the
transactions contemplated by this Agreement, except with the prior consent of
the other Party, and (iii) cooperate with each other and use Reasonable Efforts
to obtain the requisite approval of the FTC and DOJ, including without
limitation (A) the removal, dissolution, stay or dismissal of any temporary
restraining order, preliminary injunction or other judicial or administrative
order which prevents the consummation of the transactions contemplated hereby
or (B) the pursuit of necessary administrative, court and other proceedings
through, but not past, the trial court level).

              (d) LSG and TXU Gas will each be responsible for paying one-half
the filing fees required with respect to any filing under the HSR Act.

          Section 7.05. Employment of Employees by LSG.

                                       22
<PAGE>

              (a) Offers of Employment. Prior to Closing, TXU Gas will cause
its Affiliates to transfer to TXU Gas the employees employed by such Affiliates
but primarily dedicated to TXU Gas. Prior to Closing, TXU Gas' Affiliates shall
transfer to TXU Gas such employees not to exceed 125, as shall be consented to
by LSG prior to such transfer, which consent will not be unreasonably withheld.
As of the Effective Time and in connection with the transaction contemplated by
this Agreement, LSG will offer to employ all employees of TXU Gas, including
those transferred to TXU Gas pursuant to the preceding sentence (the
"Transitioned Employees") who either are actively at work or are on vacation or
bereavement leave. The effective date of LSG's offer of employment shall be each
such Transitioned Employee's "Employment Commencement Date". All such offers of
employment by LSG shall be unconditional, and LSG shall employ all Transitioned
Employees who accept such offer of employment effective as of the applicable
Employment Commencement Date. TXU Gas will terminate the employment of each
Transitioned Employee who receives an offer of employment by LSG, such
transition to be effective as of such Transitioned Employee's Employment
Commencement Date. LSG agrees that the initial positions and base salaries of
the Transitioned Employees who are employed by LSG will be comparable to the
positions and base salaries held by such employees at TXU Gas immediately prior
to the Closing, and that such base salaries shall not be reduced for a period of
at least one year after the Closing Date. The other terms of employment and
employee benefit plans applicable for the Transitioned Employees who are
employed by LSG shall be comparable to similarly situated LSG (or its
Affiliates') non-union gas utility employees, provided that: (i) except as
otherwise provided herein, each Transitioned Employee employed by LSG (and where
applicable such Transitioned Employee's dependents and beneficiaries) will be
eligible immediately to participate in all employee benefit plans of LSG for
which such Transitioned Employee is eligible by virtue of his/her employment by
LSG without any waiting period; and (ii) each such Transitioned Employee who
signs, in a timely manner, an Agreement and Release in the form attached as
Schedule 7.05(a) to this Agreement or such other forms as TXU Gas shall require
("Agreement and Release"), shall be entitled to the rights and benefits provided
for under Sections 7.05(c) (relating to a minimum retention period), 7.05(d)
(relating to the crediting of years of service for certain employee benefit plan
purposes), and 7.05(g) (relating to special severance benefits). TXU Gas will
notify LSG in writing of each Transitioned Employee who signs the Agreement and
Release in a timely manner.

              (b) On-Leave Transitioned Employees. With respect to any
Transitioned Employee who is on leave status, including medical (FMLA or
otherwise), disability, salary continuation, sick leave, or other leave of
absence, which has been approved by TXU Gas or is contemplated under its
policies, such employee shall remain an employee of TXU Gas until such employee
returns to work or his/her employment is otherwise terminated. If any such
employee returns to work within six (6) months after the Closing Date, LSG shall
promptly extend an offer of employment to such employee on the terms and
conditions of employment described in this Section 7.05, and TXU at the same
time shall terminate the employment of such employee. If any such employee does
not return within such six (6) month period, LSG shall be under no obligation
to offer employment to such employee, and such employee shall no longer be a
Transitioned Employee hereunder.

              (c) Minimum Retention. LSG shall not terminate any Transitioned
Employee employed by LSG who signs the Agreement and Release for a period of at
least ninety (90) days following the Transitioned Employee's Employment
Commencement Date for any reason other than "cause." For purposes of this
provision, "cause" shall mean intentional or gross disregard of a material
LSG rule or policy relating to employee conduct, or gross misconduct resulting,
in either case, in material harm to LSG, or conviction for a felony or other
crime involving moral turpitude.

                                       23
<PAGE>

              (d) Years of Service Credit. Except as otherwise provided in
Section 7.05(l), each Transitioned Employee employed by LSG who signs the
Agreement and Release shall receive service credit by LSG for all such
Transitioned Employee's service, which was recognized by TXU Gas or its
Affiliates, or by an employee plan of TXU Gas or its Affiliates, for purposes
of vesting, participation, eligibility for benefits, (other than eligibility
for retiree medical benefits), benefit accrual (other than benefit accrual for
retiree medical benefits), optional forms of payment, and any other right,
benefit or feature applicable to Transitioned Employees under each employee
benefit plan, program and policy of LSG. For purposes of LSG's Pension Account
Plan, "benefit accrual" shall refer only to the plan's annual allocation based
on age, benefit service and eligible pay and shall not refer to opening balance
credits, additional annual paycredits or transitional benefits under said Plan.

              (e) Special Provisions Applicable to Employee Welfare Benefit
Plans. In addition to the provisions set forth above relating to employee
benefit plans generally applicable to Transitioned Employees employed by LSG,
LSG shall, or shall cause its insurance carrier(s) to: (i) waive all
pre-existing condition limitations, waiting periods, insurability requirements
or similar limitations relating to any employee welfare benefit plan so that
each Transitioned Employee will be fully eligible to participate in each welfare
benefit plan of LSG as of Closing; and (ii) grant credit toward applicable
deductibles attained for each Transitioned Employee under the comparable plan
of TXU Gas or its Affiliates for the year of the Closing. As soon as reasonably
practical following the Closing Date, TXU Gas shall deliver to LSG a list of
such Transitioned Employees participating in each welfare benefit plan, together
with each such Transitioned Employee's co-payment, deductible and out-of-pocket
payment amounts under each such plan.

              (f) Special Provisions Relating to LSG 401(k) Plan. In addition
to the provisions set forth above relating to employee benefit plans generally
applicable to Transitioned Employees employed by LSG, LSG shall insure that its
401(k) plan shall permit, in accordance with applicable law, direct
trustee-to-trustee transfers and rollovers, as contemplated under Section 402(c)
of the Internal Revenue Code of such Transitioned Employees' TXU Thrift Plan
account balances, including all outstanding loans made under such plan. To the
extent that rollover amounts consist of outstanding loans, TXU Gas shall cause
the trustee of the TXU Thrift Plan also to transfer to the trustee of the LSG
401(k) plan the promissory notes, payroll deduction authorizations for
installment loan payments and related documents evidencing such loans.

              (g) Severance Plan. With respect to each Transitioned Employee
employed by LSG who signs the Agreement and Release, LSG shall, in addition to
the special terms provided for herein, provide such Transitioned Employee with
severance benefits at least equal to those benefits set forth in Schedule
7.05(g), in the event that LSG terminates such Transitioned Employee following
the ninetieth (90th) day of, and within the eighteen (18) month period after,
the Closing for any reason other than cause (as defined above).

                                       24
<PAGE>

               (h) Employee Appliance Purchase and Energy Conservation Programs.
LSG acknowledges that with respect to each Transitioned Employee employed by
LSG who at the time of Closing is participating in the TXU Gas programs
providing employee purchase assistance and financing for energy-efficient
household appliances through payroll withholding by TXU Gas of payments under
such programs, LSG shall continue such payroll withholding on the same terms
and conditions and shall periodically transmit the amounts so withheld to the
appropriate parties as provided for under such programs. TXU Gas will deliver
all documents and endorse all such appliance-program notes in favor of LSG.

              (i) LSG Acknowledgement. LSG acknowledges that the terms of this
Agreement as they apply to Transitioned Employees employed by LSG who executes
the Agreement and Release are being relied upon, in part, by such Transitioned
Employees and TXU Gas as consideration for the Agreement and Release.

              (j) Transitioned Employee Data. Prior to the date hereof, TXU Gas
has delivered to LSG a list of the persons who would have been Transitioned
Employees had the Closing Date occurred on June 1, 2004, showing the following
information for each such person: (i) the name of each employee and date of
birth; (ii) the name of his or her current employer; (iii) his or her current
base salary; (iv) his or her hire date, any rehire date (if applicable) and
years of service credit for the purposes set forth in Section 7.05(c); (v) his
or her then-current position and job title; and (vi) whether such employee is
on authorized leave of absence and the general nature of such leave of absence.
TXU Gas shall update such list periodically prior to the Closing Date, in each
case assuming the Closing had occurred on such date, and shall deliver such
updated lists to LSG.

             (k) Flexible Benefits Plan Transfers. As soon as reasonably
practical following the Closing Date, TXU Gas shall cause the transfer to LSG's
flexible benefits plan any credit balance in the dependent care spending account
under TXU Gas' cafeteria plan of any Transitioned Employee employed by LSG and
the net aggregate credit or debit balance in the health care spending accounts
under TXU Gas' cafeteria plan of all Transitioned Employees employed by LSG. On
the Closing Date, TXU Gas shall provide to LSG a list of Transitioned Employees
employed by LSG who have elected to participate in the health care or dependent
care spending accounts under the cafeteria plan maintained by TXU Gas, together
with such employees' elections made prior to the Closing Date with respect to
such accounts, and balances standing to their credit or debit as of the Closing
Date, and a statement of aggregate expenses reimbursed from the plan for each
such Transferred Employee during the current plan year. LSG agrees to administer
such accounts (consistent with the terms of the flexible benefits plan
applicable to LSG's employees) such that such Transferred Employees will be able
to defer compensation (in accordance with the terms of the applicable LSG plan)
and to submit claims against such accounts within the time period permitted by
applicable law.

                                       25
<PAGE>

             (l) Retiree Medical Asset Transfer. In the event TXU Gas and LSG
shall mutually agree, in lieu of excluding Transitioned Employees' service
credit for eligibility and benefit accrual for retiree medical benefits as
provided for in Section 7.05(d), each Transitioned Employee employed by LSG who
signs the Agreement and Release shall receive service credit by LSG for all such
Transitioned Employee's service which was recognized by the retiree medical
plans of TXU Gas or its Affiliates for eligibility for retiree medical benefits
and benefit accrual for retiree medical benefits. If service credit is received
as provided in this Section 7.05(l), then as soon as possible following the
Closing Date, but in no event later than 30 days following the later of the
Closing Date or other establishment of any necessary LSG Post-Retirement Trusts
(as defined below), TXU Gas shall cause the amount calculated as provided herein
to be transferred to LSG, through the transfer from the trusts or other vehicles
("TXU Gas Post-Retirement Trusts") funding the post-retirement medical benefits
(the "Post-Retirement Benefits") provided by TXU Gas for all Transitioned
Employees to the trust or trusts established or maintained by or for the benefit
of LSG employees ("LSG Post-Retirement Trusts") for the funding of
post-retirement medical benefits. The amount to be transferred shall be equal to
the amount of the accumulated post-retirement benefit obligation for the
Transitioned Employees which has been funded under the TXU Gas Post-Retirement
Trusts, as determined by the actuaries for TXU Gas in accordance with Statement
of Financial Accounting Standards No. 106, and reviewed by LSG's actuaries. TXU
Gas agrees to provide LSG with the necessary information for its actuaries to
calculate the initial accumulated post-retirement benefit obligation for the
Transitioned Employees on the basis of (i) each Transitioned Employee's actual
age and appropriate service as of the Closing Date, and (ii) the benefits and
contribution levels as in effect as of the Closing Date applicable to LSG's
active employees retiring after the closing date under LSG's plan providing
Post-Retirement Benefits.

       Section 7.06. Affiliate Agreements. Before Closing, TXU Gas may enter
into the agreements and other arrangements with its Affiliates related to the
shared use of certain facilities and shared services, all as described in
Schedule 7.06.

       Section 7.07. Books and Records: Access to Employees. Each of TXU Gas
and LSG shall make available to the other Party and its representatives,
information and employees of such Party necessary or reasonably deemed desirable
by such Party in preparing its Tax Returns, financial statements, conducting any
audits in connection therewith, and asserting or defending any Claims.

       Section 7.08. Further Assurances; License. (a) At the Closing and from
time to time after the Closing: (i) TXU Gas, at the reasonable request of LSG
and without further consideration, shall promptly execute and deliver to LSG
such certificates and other instruments of sale, conveyance, assignment and
transfer, and take such other action as may reasonably be requested by LSG to
more effectively sell, convey, assign and transfer title to and vest title in
LSG or to put LSG in possession of the TXU Gas Merger Assets, and (ii) LSG, at
the request of TXU Gas and without further consideration, shall promptly execute
and deliver to TXU Gas such certificates and other instruments of assumption,
and take such other action, as may reasonably be requested by TXU Gas, to more
effectively confirm and effect the assumption by LSG of the TXU Gas Merger
Liabilities.

                                       26
<PAGE>

             (b) Provided that such use does not interfere with the business of
TXU Gas' Affiliates, and subject to the applicable Affiliate's written consent
which may not be unreasonably withheld (but which may be conditioned upon the
provision of insurance coverage and other customary terms of use), TXU Gas shall
cause each of its Affiliates to grant to LSG a non-exclusive, perpetual,
paid-up, limited license to use any right-of-way or easement, whether or not
currently in writing or recorded, upon which their respective assets are
located or upon which pipelines, pipes, gas lines, or other facilities of LSG
as a surviving company are located, for the continued use, operation and
replacement of such pipelines, pipes, gas lines and other facilities of TXU Gas
currently located on such properties.

       Section 7.09. Notices of Certain Events.  LSG and TXU Gas shall each
promptly notify the other Party hereto of:

             (a) any written notice from any Person alleging that the consent
of such Person is or may be required in connection with the transactions
contemplated by this Agreement;

             (b) any written notice from any Governmental Authority in
connection with the transactions contemplated by this Agreement or the TXU Gas
Merger Assets;

             (c) any Claim commenced or, to its Knowledge, threatened against,
relating to, or involving or otherwise affecting such Party that, if pending on
the date of this Agreement, would have been required to be disclosed pursuant
to any provision of this Agreement, or that relate to the consummation of the
transactions contemplated by this Agreement; and

             (d) any of the following: (i) the discovery by such Party that any
representation or warranty of any Party contained in this Agreement is untrue or
inaccurate in any material respect, or (ii) the occurrence or failure to occur
of any event which occurrence or failure to occur would be likely to cause any
of the representations or warranties in this Agreement to be untrue or incorrect
in any material respect as of the date made, and (iii) any material failure on
its part to comply with or satisfy any covenant, condition or agreement to be
complied with or satisfied by it hereunder.

       Section 7.10. Casualty Loss or Condemnation.

             (a) If, before Closing, any party of the TXU Gas Merger Assets are
damaged or destroyed by fire or other casualty, or if any part of the TXU Gas
Merger Assets are condemned, or if proceedings are filed for condemnation or
under the right of eminent domain, the result of which will have a Material
Adverse Effect (any of such being a "Casualty"), TXU Gas will promptly inform
LSG. As soon as practicable following any Casualty, TXU Gas will provide to LSG
a detailed written estimate from an independent third party appraiser mutually
acceptable to TXU Gas and LSG ("Casualty Estimate") setting forth the estimated
amount required to repair or replace the damaged TXU Gas Merger Asset and the
estimated time period for completion of such repair or replacement.

                                       27
<PAGE>

             (b) Concurrently with the delivery of a Casualty Estimate, TXU Gas
will notify LSG whether TXU Gas elects: (i) to repair or replace the damaged
TXU Gas Merger Asset, or (ii) to offer to accept a reduction in the LSG Merger
Assets by an amount equal to the Casualty Estimate. TXU Gas will have no
obligation to repair the damaged TXU Gas Merger Asset as a result of such
Casualty, but if TXU Gas elects to repair or replace the damaged TXU Gas Merger
Asset, TXU Gas shall promptly commence and diligently proceed to complete the
repair or replacement of the damaged TXU Gas Merger Asset at its cost in a good
and workmanlike manner (in a manner consistent with the condition of the TXU Gas
Merger Asset immediately prior to the Casualty).

             (c) If TXU Gas elects to repair or replace such TXU Gas Merger
Assets, but TXU Gas has not completed the repair or replacement (and TXU Gas
shall have used Reasonable Efforts to do so) at the time when all other
conditions to the respective obligations of the Parties to consummate the
transaction contemplated under this Agreement have been or are reasonably
expected to be met, the Parties may, subject to Section 7.10(d), close the
transactions contemplated hereby and, in such event, TXU Gas will complete the
repair or replacement after the Closing. LSG will provide TXU Gas and its
contractors access to the TXU Gas Merger Assets as reasonably necessary to
complete the repairs.

             (d) If a Casualty occurs, TXU Gas may extend the date for Closing
for up to 90 days beyond the Termination Date if it elects to repair or replace
the damaged or destroyed TXU Gas Merger Asset, is using Reasonable Efforts to
effect such repair or replacement, but is unable to complete such repair or
replacement by the Termination Date; provided that the period of such extension
may not be greater than reasonably required to effect such repair or
replacement. If TXU
Gas elects not to repair or replace the damaged TXU Gas Merger Asset or fails to
repair or replace it within the time provided, LSG shall have the right to
terminate this Agreement by written notice.

       Section 7.11. Signs. Within six (6) months after Closing, LSG shall
remove all marks on signs and other markers from any of the TXU Gas Merger
Assets bearing the name of TXU Gas or any derivative thereof, and change the
color of any TXU Gas Merger Assets that are painted with the TXU Gas proprietary
colors described on Schedule 7.11 hereto. Within six (6) months after Closing,
TXU Gas and its Affiliates shall remove all marks on signs and other markers
from any of their assets bearing the name of Lone Star Gas or any derivative
thereof.

       Section 7.12. LSG Parent Guaranty. Concurrently with the execution of
this Agreement, LSG Parent will deliver to TXU Gas a fully-executed guaranty of
LSG Parent, in the form attached hereto as Exhibit C-1 (the "LSG Parent
Guaranty").

       Section 7.13. Tax Matters.

             (a) TXU Gas and LSG will provide each other with assistance and
information relating to the TXU Gas Merger Assets as may reasonably be requested
in connection with the preparation of any Tax Returns, audit or other
examination by any Tax Authority relating to liability for Taxes, and will each
retain and provide to the other party all records and other information which
may be relevant to any such Tax Return, audit or examination, proceeding or
determination. LSG and TXU Gas will retain, until the expiration of the
applicable statute of limitations (including any extensions thereof) copies of
all Tax Returns, supporting work schedules and other records relating to the TXU
Gas Merger Assets for Tax periods or portions thereof ending on or prior to the
Closing Date.

                                       28
<PAGE>

             (b) TXU Gas and LSG agree to utilize, or cause their respective
Affiliates to utilize, the procedure set forth in Treasury Regulation Section
31.3121(a)(1)-1(b) with respect to wage reporting.

             (c) LSG shall prepare and file, or cause to be filed, all Tax
Returns with respect to Transfer Taxes and all Tax Returns for Taxes (other
than Taxes measured by net income) attributable to TXU Gas' or LSG's ownership
of the TXU Gas Merger Assets and due after the Effective Time.

             (d) TXU Gas will provide LSG all reasonable data, records and
assistance necessary to ensure that the treatment of the transactions
contemplated by this Agreement for regulatory rate purposes will not constitute
a violation of the normalization provisions under Section 168(i) of the Internal
Revenue Code of 1986, as amended, including without limitation attending and
participating in any relevant regulatory hearings or other proceedings.

       Section 7.14.  Other Information.

             (a) Until the Closing Date, TXU Gas shall deliver to LSG within
forty five (45) days after the end of each month a correct copy of the balance
sheet and statement of income for such month and the portion of the current
fiscal year then ended prepared in a manner and containing information
consistent with its current practices. TXU Gas shall deliver to LSG within
ten (10) days of filing with the SEC, its quarterly, unaudited Financial
Statements.

             (b) At the reasonable request of LSG, and at LSG's expense,
TXU Gas will use its Reasonable Efforts to provide LSG and its Affiliates
financial statements and related information for the TXU Gas Merger Assets which
may include: (i) an audited balance sheet as may be required or, in the judgment
of LSG, advisable to be filed by LSG Parent in accordance with Regulation S-X
under the Securities Act of 1933, as amended, and related statements of income
and cash flows for each of its then three most recent fiscal years,
(ii) unaudited interim consolidated financial statements (including balance
sheet and statements of income and cash flows) for later interim periods, and
(iii) other financial information (including without limitation adjusted
historical financial statements), in each case as may be required or advisable
for filings with the Securities and Exchange Commission in compliance with
Regulation S-X in connection with or on account of the transactions
contemplated hereby.

             (c) At the request of LSG, TXU Gas will use its Reasonable Efforts
to obtain the consent of Deloitte & Touche LLP, its independent accountants, to
LSG's and LSG Parent's use of the financial statements referred to in this
Section 7.14 in filings with the Securities and Exchange Commission by LSG
Parent.

                                       29
<PAGE>

                                  ARTICLE VIII
              CONDITIONS TO THE OBLIGATIONS OF THE PARTIES TO CLOSE

       Section 8.01. Conditions to the Obligations of LSG. The obligation of
LSG to consummate the transactions to be performed by it in connection with the
Closing are subject to the satisfaction of each of the following conditions
(any of which may be waived by LSG, in whole or in part):

             (a) All of TXU Gas' representations and warranties in Article V,
and all of the TXU Gas Parent's representations and warranties in the TXU Gas
Parent Company, that are not qualified by materiality must be true and correct
in all material respects, and those that are qualified by materiality must be
true and correct, in each case, at and as of the date hereof and the Closing
Date;

             (b) TXU Gas must have performed and complied with all of its
covenants hereunder in all material respects through the Closing Date;

             (c) TXU Gas must have delivered a certificate to LSG which
certifies that TXU Gas has satisfied conditions (a) and (b) above;

             (d) TXU Gas must have satisfied or provided for the satisfaction
of the debt and other obligations identified in Schedule 8.01(d);

             (e) No action, suit or proceeding is pending by or before any court
or quasi-judicial or administrative agency or other Governmental Authority, and
no action, suit or proceeding has been threatened in writing by the Texas
Railroad Commission or by any municipality served by TXU Gas in which TXU Gas
distributed in excess of 3 Bcf in 2003, if the unfavorable injunction, judgment,
order, decree or ruling filed or threatened (as applicable) would prevent the
consummation of any of the transactions contemplated by this Agreement, or would
cause such transactions to be rescinded following consummation, or would
materially and adversely affect the right of LSG to own or operate the TXU Gas
Merger Assets, or the continued conduct the Business by LSG in all material
respects as currently conducted by TXU Gas;

             (f) The Transfer Requirements identified in Schedule 8.01(f) and
the approvals contemplated by Schedule 6.04(b) shall have been obtained in form
and substance reasonably satisfactory to LSG; and

             (g) No Material Adverse Effect has occurred since the date hereof
that is continuing.

       Section 8.02. Conditions to the Obligations of TXU Gas. The obligation
of TXU Gas to consummate the transactions to be performed by it in connection
with the Closing are subject to the satisfaction of each of the following
conditions (any of which may be waived by TXU Gas, in whole or in part):

                                       30
<PAGE>

             (a) All of LSG's representations and warranties as set forth in
Article VI, and all of the LSG Parent's representations and warranties in the
LSG Parent Guaranty, that are not qualified by materiality must be true and
correct in all material respects, and those that are qualified by materiality
must be true and correct, in each case, at and as of the date hereof and the
Closing Date;

             (b) LSG must have performed and complied with all of its covenants
hereunder in all material respects through the Closing Date;

             (c) LSG must have delivered certificates to TXU Gas that certify
that LSG has satisfied conditions (a) and (b) above; and

             (d) No action, suit or proceeding is pending by or before any court
or quasi-judicial or administrative agency or other Governmental Authority, and
no action, suit or proceeding has been threatened in writing by the Texas
Railroad Commission or by any municipality served by TXU Gas in which TXU Gas
distributed in excess of 3 Bcf in 2003, if the unfavorable injunction, judgment,
order, decree or ruling filed for or threatened (as applicable) would prevent
the consummation of any of the transactions contemplated by this Agreement, or
would cause such transactions to be rescinded following consummation, or would
adversely affect the right of TXU Gas to allocate the TXU Gas Merger Assets and
the TXU Gas Merger Liabilities to LSG under the terms of this Agreement.

                                   ARTICLE IX
                         INDEMNIFICATION AND ASSUMPTION

       Section 9.01. By TXU Gas. Subject to the terms and conditions of this
Section 9.01, TXU Gas shall indemnify and defend LSG, its Affiliates and their
respective directors, officers, employees, contractors, agents and other
representatives (each such Person being herein called a "TXU Gas Indemnified
Party", and all such Persons being collectively herein called the "TXU Gas
Indemnified Parties") against, and hold each TXU Gas Indemnified Party harmless
from, any loss, diminution in value, liability, damage, cost, expense, action,
award, suit, proceedings, hearing, investigation, charge, complaint, Claim,
demand, injunction, judgment, order, decree, ruling, taxes, or liens (including
reasonable costs of defense and investigations, settlements, and fees, and
further including court costs and reasonable attorneys' and witness fees) or
penalties or fines (collectively, "Losses") that such TXU Gas Indemnified Party
incurs to the extent arising out of or resulting from any of the following, and
in each case whether known or unknown (collectively, the "TXU Gas Indemnified
Liabilities"):

             (a) the failure of any of the representations and warranties of
TXU Gas contained in this Agreement to be true and correct as of the date made
(including the Closing Date for those representations and warranties that are
also made as of the Closing Date);

             (b) the failure of TXU Gas to perform any covenant of TXU Gas in
this Agreement; and

             (c) the TXU Gas Retained Liabilities.

                                       31
<PAGE>

       Section 9.02.  Environmental Indemnity.

             (a) Subject to the terms and conditions of this Section 9.02,
TXU Gas will indemnify LSG for all Environmental Liabilities and Costs arising
with respect to any TXU Gas Merger Asset as a result of any action, fact,
circumstance or condition to the extent existing or occurring on or before the
Effective Time, but excluding all Environmental Liabilities and Costs arising
from the existence of non-friable asbestos and asbestos-containing materials
(to the extent the same do not violate Environmental Laws) and any post-Closing
activity that disturbs asbestos or asbestos-containing materials. The foregoing
are referred to as the "Environmental Matters".

             (b) The indemnity provided in this Section 9.02 only applies to
Qualifying Claims. A "Qualifying Claim" is a Claim for which LSG provides a
Claim Notice for indemnity before the third anniversary of the Closing Date,
and for which the aggregate of the Environmental Liabilities and Costs exceed
$1 million. TXU Gas has no indemnity obligations with respect to any
Environmental Matter if the aggregate of the Environmental Liabilities and
Costs is less than $1 million, and any costs associated therewith will not be
included in calculating any deductible under this Section 9.02.

             (c) TXU Gas has no indemnity obligation with respect to any
Qualifying Claim until the aggregate of the Environmental Liabilities and Costs
with respect to all Qualifying Claims exceeds $10 million, and then only with
respect to sums in excess of $10 million.

             (d) TXU Gas will indemnify LSG for 50% of the Environmental
Liabilities and Costs incurred with respect to Qualifying Claims in excess of
$10 million, and 100% of the Environmental Liabilities and Costs in excess of
$20 million, subject to the limit on TXU Gas' indemnity obligation set forth in
Section 9.03.

             (e) TXU Gas' indemnity obligations with respect to any
Environmental Liabilities or Costs will terminate with respect to any
Environmental Matter for which a Claim Notice is not provided within the 3-year
period, but the termination of the 3-year period will not relieve TXU Gas'
indemnity obligations with respect to any Qualifying Claim for which a Claims
Notice for a bonafide Claim was given before such date.

             (f) The indemnity provided by this Section 9.02 shall not affect
the allocations of liabilities (and any related indemnities) associated with the
TXU Gas Excluded Assets or the TXU Gas Retained Liabilities, and the payments
of Losses in respect thereof shall not constitute a credit against amounts
otherwise payable by TXU Gas under this Section 9.02.

             (g) The indemnity provided by this Section 9.02 shall not apply to
the matters listed on Schedule 5.09.

       Section 9.03. Limitations. TXU Gas shall not be liable under Section
9.01(a) unless the aggregate amount of Losses with respect to such matters
exceeds $15 million, and then only with respect to the Losses over that amount,
and TXU Gas' maximum liability under Section 9.01(a) and Section 9.02 will never
exceed 10% of the LSG Merger Assets. The limitations in this Section 9.03(a)
will not, however, apply to breaches of the representations in Sections 5.01,
5.02, or 5.03(a)(i)(A), and will not limit damages for fraud.

                                       32
<PAGE>

             (b) LSG shall not be liable under Section 9.04(a) unless the
aggregate amount of Losses with respect to such matter exceeds $15 million, and
then only with respect to the Losses over that amount, and LSG's maximum
liability under Section 9.04(a) will never exceed 10% of the LSG Merger Assets.
The limitations in this Section 9.03(b) will not, however, apply to breaches of
the representations in Sections 6.01, 6.02, or 6.04(a)(i)(A), and will not limit
damages for fraud.

             (c) A limitation on indemnification provided in this Section 9.03
as to any matter will not apply to reduce the amount of indemnity otherwise
applicable to such matter. For the purposes of this Article IX, once a
determination has been made that a specific breach of a representation,
warranty, covenant or agreement has occurred for purposes of the
indemnification obligation hereunder, the calculation of Losses with respect to
such specific breach shall be made without regard to any limitation or
qualification as to materiality or Material Adverse Affect set forth in such
representation, warranty, covenant or agreement.

       Section 9.04. By LSG. Subject to the terms and conditions of this
Section 9.04, LSG shall indemnify and defend TXU Gas and its Affiliates, and
each of their respective directors, officers, employees, contractors, agents
and other representatives (each such Person being herein called a "LSG
Indemnified Party", and all such Persons being collectively herein called the
"LSG Indemnified Parties") against, and hold each LSG Indemnified Party
harmless from, any Losses that such LSG Indemnified Party incurs to the extent
arising out of or resulting from any of the following, and in each case whether
known or unknown (collectively, the "LSG Indemnified Liabilities"):

             (a) the failure of any of the representations and warranties of
LSG contained in this Agreement to be true and correct as of the date made
(including the Closing Date for those representations and warranties that are
also made as of the Closing Date);

             (b) the failure of LSG to perform any covenant of LSG in this
Agreement; and

             (c) the TXU Gas Merger Liabilities.

       Section 9.05. Express Negligence Rule. WITHOUT LIMITING OR ENLARGING THE
SCOPE OF THE INDEMNIFICATION OBLIGATIONS SET FORTH IN THIS AGREEMENT, AN
INDEMNIFIED PARTY IS ENTITLED TO INDEMNIFICATION, REGARDLESS OF WHETHER THE
LOSS OR CLAIM GIVING RISE TO THE INDEMNIFICATION OBLIGATION IS THE RESULT OF
THE SOLE, CONCURRENT OR COMPARATIVE NEGLIGENCE, STRICT LIABILITY OR VIOLATION
OF ANY LAW OF OR BY THE INDEMNIFIED PARTY. THE PARTIES AGREE THAT THIS PARAGRAPH
CONSTITUTES A CONSPICUOUS LEGEND.

       Section 9.06. Notice of Claim. For purposes of this Article IX, the term
"Indemnifying Party" when used in connection with a particular Claim means the
Party having an obligation to indemnify another party with respect to such Claim
pursuant to this Article IX, and the term "Indemnified Party" when used in
connection with a particular Claim means the party having the right to be
indemnified with respect to such Claim by another Party pursuant to this Article
IX.

                                       33
<PAGE>

             (b) Promptly after any Indemnified Party becomes aware of facts
giving rise to a Claim by it for indemnification pursuant to this Article IX,
such Indemnified Party will provide notice thereof in writing to the
Indemnifying Party (a "Claim Notice") specifying the nature and specific basis
for such Claim and a copy of all papers served with respect to such Claim
(if any). For purposes of this Section 9.06(b), receipt by a Party of written
notice of any demand, assertion, claim, action or proceeding (judicial,
administrative or otherwise) by or from any Person other than a Party to this
Agreement which gives rise to a Claim on behalf of such Party constitutes the
discovery of facts giving rise to a Claim by it and the Party must give prompt
notice of the receipt of such matter as provided in the first sentence of this
Section 9.06(b); provided that, the failure to give notice in a timely manner
as required will not negate or otherwise affect the indemnification obligation
of the Indemnifying Party except: (i) to the extent, if any, the Indemnifying
Party is actually prejudiced by the failure to give such timely notice, and
(ii) as provided in Section 9.09. Each Claim Notice must set forth a reasonable
description of the Claim and must contain a statement to the effect that the
Indemnified Party giving the notice is making a claim and formal demand for
indemnification under this Article IX.

       Section 9.07. Third Party Claims. (a) If any third Person notifies an
Indemnified Party with respect to any matter that gives rise to a claim for
indemnification against the Indemnifying Party under this Article IX, then the
Indemnified Party shall promptly transmit to the Indemnifying Party a Claim
Notice relating to such Third Party Claim. The failure to give notice in a
timely manner as required by the preceding sentence will not negate or otherwise
affect the indemnification obligation of the Indemnifying Party except: (i) to
the extent, if any, the Indemnifying Party is actually prejudiced by the failure
to give such timely notice, and (ii) as provided in Section 9.09. Prior to the
expiration of the 45-day period following the Indemnifying Party's receipt of
such notice (the "Election Period"), the Indemnifying Party shall notify the
Indemnified Party: (i) whether the Indemnifying Party disputes its potential
liability to the Indemnified Party under this Article IX, with respect to such
Third Party Claim; and (ii) whether the Indemnifying Party elects, at the sole
cost and expense of such Indemnifying Party, to defend the Indemnified Party
against such Third Party Claim.

             (b) If an Indemnifying Party notifies an Indemnified Party within
the Election Period that the Indemnifying Party does not dispute its potential
liability to the Indemnified Party under this Article IX and that the
Indemnifying Party elects to assume the defense of the Third Party Claim, then
the Indemnifying Party will have the right to defend, at its sole cost and
expense, such Third Party Claim by all appropriate proceedings, and the
Indemnifying Party must prosecute the proceedings to a final conclusion or
settle the proceedings at the discretion of the Indemnifying Party in accordance
with this Section 9.07(b). The Indemnifying Party will have full control of
such defense and proceedings, including any compromise or settlement thereof;
provided that, without the consent of the Indemnified Party, the Indemnifying
Party may not admit or stipulate the liability of any Indemnified Party or bind
a party to an injunction or any material future obligation or restriction. If
requested by the Indemnifying Party, the Indemnified Party agrees to cooperate
fully with the Indemnifying Party and its counsel at the Indemnifying Party's
expense in contesting any Third Party Claim that the Indemnifying Party elects
to contest. The Indemnified Party has the right to participate in, but not
control, any defense or settlement of any Third Party Claim controlled by the
Indemnifying Party pursuant to this Section 9.07(b) and shall bear its own
costs and expenses with respect to any such participation.

                                       34
<PAGE>

             (c) Unless and until an Indemnifying Party assumes the defense of
the Third Party Claim as provided in Section 9.07 above, the Indemnified Party
may defend itself against the Third Party Claim in any manner it reasonably may
deem appropriate. In no event will the Indemnified Party consent to the entry
of any judgment or enter into any settlement with respect to the Third Party
Claim without the prior written consent of the Indemnifying Party (which consent
will not be unreasonably withheld), unless the Indemnified Party waives
indemnification with respect to the Third Party Claim so settled and
adjudicated.

       Section 9.08. Subrogation. If any Indemnified Party has a right against
a third party (other than an insurance provider of the Indemnified Party and
its Affiliates) with respect to any Losses paid to such Indemnified Party by an
Indemnifying Party, then such Indemnifying Party shall, to the extent of such
payment, be subrogated to the right of such Indemnified Party.

       Section 9.09. Exclusive Remedies; Survival of Representations and
Warranties; Limitation of Certain Liabilities.

             (a) The Parties: (i) agree that only actual damages shall be
recoverable under this Agreement and (ii) hereby waive any right to recover
special, punitive, consequential, incidental or exemplary damages, except to
the extent any such Party suffers such damages to an unaffiliated third party
in connection with a Third Party Claim, in which event such damages shall be
recoverable; provided that the foregoing shall not limit a Party's ability to
recover damages for diminution in value as an element of actual damages, whether
involving a direct claim against such Party or by an unaffiliated third party.
Notwithstanding anything to the contrary in this Agreement (other than Section
7.03(b)), the indemnification provisions of this Agreement shall be the
exclusive remedies for any Claim based upon this Agreement or the transactions
described herein following Closing except for fraud. In furtherance of the
foregoing, and subject to such exceptions, all other remedies available at law
or in equity, in tort, contract or otherwise are hereby waived, released and
discharged by each Party.

             (b) Notwithstanding anything to the contrary in this Agreement,
neither Party has any indemnification obligation under this Agreement arising
from the failure of a representation or warranty made by such Party unless the
Claim Notice relevant thereto is delivered to the Indemnifying Party prior to
the end of any survival period with respect to such representation and warranty
as set forth in Section 9.09(c).

             (c) Except as provided below, each Party's representations and
warranties set forth in this Agreement and any certificate or instrument
delivered in connection herewith shall survive the Closing and any investigation
by the Parties and, except for the representations and warranties pursuant to

                                       35
<PAGE>

Sections 5.01, 5.02, 5.03(a)(i)(A), 6.01, 6.02 and 6.04(a)(i)(A), terminate on
the date which is fifteen (15) months after the Closing Date. After termination,
a Party may not bring any action or present any Claim for a breach of any such
representation or warranty. However, a Party's rights to indemnity will not
expire with respect to a bona fide Claim properly asserted in writing before the
date which is fifteen (15) months after the Closing Date. The representations
and warranties pursuant to Sections 5.01, 5.02, 5.03(a)(i)(A), 6.01, 6.02 and
6.04(a)(i) and the covenants and obligations of the Parties under this Agreement
survive the Closing without limitation.

                                   ARTICLE X
                                   TERMINATION

       Section 10.01.    Termination Events.  This Agreement may be terminated
by written notice given prior to or at the Closing,  such termination to be
effective as of the time and date of the other Party's receipt thereof:

             (a) by any Party 30 days after giving written notice to the other
Parties of a material breach of any provision of this Agreement, if the breach
has not been cured or waived;

             (b) by mutual consent of the Parties;

             (c) by LSG pursuant to Section 7.10; or

             (d) by any Party if the Closing has not occurred on or before
December 31, 2004, subject to Section 7.10.

       Section 10.02. Effect of Termination. The following provisions apply if
this Agreement is terminated:

             (a) If the conditions to the Closing set forth in Section 8.02 have
been satisfied or waived and TXU Gas fails to close for any reason except
pursuant to an express right as set forth herein, LSG will be entitled to
exercise all rights and remedies available at law or in equity as a result of
such wrongful termination; subject, however, to any applicable provisions of
Section 9.08.

             (b) If the conditions to the Closing set forth in Section 8.01,
other than the receipt of the approvals listed in Schedule 6.04(b), have been
satisfied or waived, and LSG fails to close the transactions contemplated by
this Agreement before December 31, 2004 for any reason except pursuant to an
express right as set forth herein, LSG shall pay TXU Gas $15 million. The
failure of LSG to close because of the failure to receive the approvals on
Schedule 6.04(b) will not relieve LSG's payment obligations under this Section.
Such payment will be promptly paid by wire-transfer of immediately available
funds immediately upon demand by TXU Gas and without any right of setoff. Upon
payment by LSG (or LSG's designee) of such amount, LSG will be fully released
and discharged from any liability or obligation resulting for its failure to
close the transactions contemplated by this Agreement.

                                       36
<PAGE>

             (c) The Parties agree that the provisions of this Section 10.02
will survive any termination of this Agreement.

                                   ARTICLE XI
                                  MISCELLANEOUS

       Section 11.01. Entire Agreement. This Agreement, including all exhibits
and schedules hereto, supersedes any and all other agreements, oral or written,
between the Parties with respect to the subject matter hereof and contains the
entire agreement between the Parties with respect to the transactions
contemplated hereby.

       Section 11.02. No Reliance on External Representations. LSG acknowledges
that, in determining whether to consummate the transactions described in this
Agreement, it has not relied on any representation, warranty or other statement
of TXU Gas, or any officer, director, employee, representative or agent of TXU
Gas, other than those representations, warranties and statements set forth in
this Agreement (including the exhibits and schedules hereto), and the
certificates and other instruments delivered pursuant to this Agreement. TXU Gas
shall have no liability to LSG or any other Person, resulting from the
distribution to LSG, or LSG's use of, any such information relating to TXU Gas,
or prepared by or on behalf of TXU Gas, and supplied to LSG before the date
hereof, or any information, documents or materials made available to LSG in any
data rooms, any presentation or in any other form relating to the business of
TXU Gas in connection with the transactions contemplated hereby, except for the
representations, warranties and statements set forth herein or in such
certificates or other instruments.

       Section 11.03. Amendments. This Agreement may only be amended in
writing signed by LSG and TXU Gas.

       Section 11.04. Waivers. The delay or failure of a Party to exercise any
right or to insist on  performance of any obligation is not a waiver of that
right or obligation, or any similar right or obligation.  Waivers are only
effective if in writing.

       Section 11.05. Parties in Interest. This Agreement is binding upon and
will inure to the benefit of the Parties hereto and may not be assigned by any
Party, without the prior written consent of the other Parties. Except as
expressly provided otherwise in this Agreement, no Person other than the Parties
to this Agreement have any legal or equitable right, remedy or claim under or
with respect to this Agreement, or any provision of this Agreement.
Notwithstanding the foregoing, this Agreement shall be binding upon and inure
to the benefit of LSG Parent from and after the date LSG merges into LSG Parent.

       Section 11.06. Notices. All notices, consents, waivers and other
communications to be given or made hereunder by any Party to the other Parties
("Notices") must be in writing and: (i) delivered by hand, (ii) mailed by
certified mail, postage prepaid, return receipt requested, (iii) sent by
telecopy or facsimile transmission, answer back requested, or (iv) sent by
express mail, Federal Express, or other express delivery service or courier
service, to each Party at its address or telecopy number set forth below (or to
such other addresses and telecopier numbers as a Party may designate by notice
to the other Parties):

                                       37
<PAGE>

         If to TXU Gas:

         TXU Gas Company
         Energy Plaza
         1601 Bryan, Suite 4200
         Dallas, TX 75201-3411
         Tel. (214) 486-4690
         Facsimile (214) 486-4235
         Attention:  Mike McCall, President

         with copies to:

         Hunton & Williams LLP
         Energy Plaza
         1601 Bryan, 30th Floor
         Dallas, Texas 75201
         Tel: (214) 979-3000
         Facsimile: (214) 880-0011
         Attention:  Joe A. Davis


         If to LSG:

         LSG Acquisition Corporation
         5430 LBJ Freeway, Suite 1800
         Dallas, Texas 75240-2601
         Tel:  972-855-3716
         Facsimile:  972.855.3080
         Attention:  Louis P. Gregory

         with copies to:

         Gibson, Dunn & Crutcher LLP
         2100 McKinney Avenue, Suite 1100
         Dallas, Texas 75201-6911
         Tel:  214-698-3100
         Facsimile:  214-571-2900
         Attention:  Irwin F. Sentilles, III

Notices are be effective: (i) if delivered in person or by courier, upon receipt
at the address referred to above by the intended recipient, (ii) if sent by
telecopy or facsimile transmission, when the answer back is received; provided,
however, if the transmission is not received during normal business hours on a
business day, the notice will be effective as of the next succeeding business
day, or (iii) if mailed, the date of delivery as shown by the return receipt
therefor. If the date specified in this Agreement for giving any notice or
taking any action is not a business day (or if the period during which any
notices required to be given or any action taken expires on a date which is not
a business day), then the date for giving such notice or taking such action (and
the expiration date for such period during which notice is required to be given
or action taken) shall be the next day which is a business day.

                                       38
<PAGE>

       Section 11.07. Costs. Each party will bear its own fees and expenses
incurred in connection with the transactions described in this Agreement except
as otherwise provided herein.

       Section 11.08. Governing Law and Jurisdiction. This Agreement is governed
by and will be construed in accordance with the laws of the State of Texas.
Venue for any action arising from this Agreement is proper only if filed in
Dallas County, Texas. Each Party submits to the jurisdiction of courts in
Dallas County, Texas, without waiving the right to remove to federal court in
Dallas County if removal is otherwise proper.

       Section 11.09. Incorporation of Exhibits and Schedules; Amendment of
Schedules. The annexes and schedules attached to the Agreement or identified in
this Agreement are incorporated by this reference and are a part of the
Agreement for all purposes. LSG and TXU Gas will, promptly upon becoming aware
of any fact, matter, circumstance or event, which fact, matter, circumstance or
event arose either (i) on or prior to the date hereof or (ii) after the date
hereof but prior to the Closing, in any case, requiring supplementation or
amendment of the schedule provided by the Parties attached hereto, supplement
or amend such schedules to this Agreement to reflect any fact, matter,
circumstance or event, which, if existing, occurring or known on the date of
this Agreement, would have been required to be set forth or described in such
schedules which were or have been rendered inaccurate thereby. If Closing
occurs, all supplements and amendments to the schedules provided by the Parties
are effective for all purposes, including to (i) amend or supplement the
representations and warranties (and corresponding schedules) made as of the
date hereof, and (ii) for the purpose of determining (A) satisfaction of the
conditions set forth in Section 11.09 hereof, and (B) compliance by the Parties
with their respective covenants and agreements set forth herein. Until Closing
occurs, the amendments or supplements to the Schedules will not be effective
and will not cure any breach or excuse any condition to Closing. Nothing in a
schedule or in any supplement or amendment is presumed to be material, and may
be included for information only.

       Section 11.10. Counterparts. This Agreement may be executed in one or
more counterparts, each of which will be deemed to be an original copy of this
Agreement and all of which, when taken together, will be deemed to constitute
one and the same agreement.

       Section 11.11. Severability. If any term, provision, covenant or
restriction of this Agreement is held by a court of competent jurisdiction to
be invalid, void or unenforceable, the remainder of the terms, provision,
covenants and restrictions of this Agreement will continue in full force and
effect and will in no way be affected, impaired or invalidated.

                  [Remainder of Page Intentionally Left Blank]



                                       39
<PAGE>



         SIGNED THIS ______ day of June, 2004.



                                   TXU GAS COMPANY


                                   By: /s/ Mike McCall
                                    ------------------------------------------
                                   Name:  Mike McCall
                                   Title:   President




                                   LSG ACQUISITION CORPORATION


                                   By:  /s/ J. Patrick Reddy
                                     -----------------------------------------
                                    Name:  J. Patrick Reddy
                                    Title: Senior Vice President
                                           and Chief Financial Officer











                                 Signature Page
<PAGE>


                                   APPENDIX A

                              Certain Defined Terms



         "Affiliate" means, with respect to any Person, one that, directly or
indirectly, controls, is controlled by, or is under common control with, another
Person. The term "control" (including the terms "controlled by" and "under
common control with") as used in the preceding sentence means possession,
directly or indirectly, of the power to direct or cause the direction of
management and policies of a Person, whether through the ownership of voting
securities, by contract, or otherwise.

         "Agreed Rate" means a variable rate per annum equal to the lesser of:
(i) the London Interbank Offered Rate (LIBOR) plus 1%, and (ii) the maximum rate
permitted by applicable law. Interest will accrue from the Closing Date to, but
not including, the payment date, and shall be calculated on the basis of a
360-day year consisting of twelve 30-day months, and with respect to any period
less than a full month, on the basis of the actual number of days elapsed during
such period.

         "Allocation Schedule" is defined in Section 4.07.

         "Articles of Merger" has the meaning specified in Section 2.02 of this
Agreement.

         "Books and Records" is defined in Section 3.01(h).

         "Business" means the business or businesses of TXU Gas related to the
purchase, gathering, storage, transmission, distribution and sale of natural gas
in the State of Texas and the provision of services related thereto.

         "Capital Expenditures Budget" is defined in Section 7.01(g).

         "Casualty" is defined in Section 7.10.

         "Claim" means all demands, claims, actions, investigations, causes of
action, proceedings and arbitrations, whether or not ultimately determined to be
valid.

         "Claim Notice" is defined in Section 9.06(b).

         "Closing" is defined in Section 4.02.

         "Closing Date" is defined in Section 4.02.

         "Closing LSG Merger Assets" is defined in Section 4.04(a).

         "Confidentiality Agreement" is defined in Section 7.03.

         "Effective Time" is defined in Section 4.02.

                                       1
<PAGE>

         "Election Period" is defined in Section 9.07(a).

         "Encumbrance" means any lien, pledge, security interest, mortgage,
charge, claim, restriction, encumbrance, or other matter that creates or would
create an impairment of use or enjoyment of, or loss of interest in the relevant
asset.

         "Environmental Laws" means all of the following, as in effect as of the
date hereof: federal, state, local and foreign laws or statutes, regulations,
rules, codes, ordinances, treaties, orders, decrees, judgments, written
agreements entered into with Governmental Authorities, or injunctions issued,
promulgated, approved or entered relating to pollution, or protection of the
environment or occupational health and safety, including releases or threatened
releases of pollutants, contaminants, chemicals or industrial, toxic or
hazardous substances, materials or wastes (including, without limitation, oil,
asbestos and radiation) into the environment (including, without limitation,
ambient air, surface water, ground water, land surface or subsurface strata), or
otherwise relating to the manufacture, processing, distribution, use, treatment,
storage, disposal, transport or handling of or exposure to pollutants,
contaminants, chemicals or industrial, toxic or hazardous substances, material
or wastes, or designed to provide safe and healthful working or living
conditions or to reduce occupational or other safety and health hazards.

         "Environmental Liabilities and Costs" means any costs, damages,
expenses, liabilities, obligations or other responsibilities arising from or
under Environmental Law and consisting of or relating to:

         (a)      any environmental, health or safety matters or condition
                  (including on-site or off-site contamination, occupational
                  safety and health, and regulation of chemical substances or
                  products);

         (b)      civil fines or, penalties, judgments, awards, settlements,
                  legal or administrative proceedings, damages, losses, claims,
                  demands and response action, investigative, remedial, removal
                  or inspection costs and expenses;

         (c)      financial responsibility for any required compliance,
                  corrective, investigative or remedial measures;

         (d)      natural resource damages; or

         (e)      all costs and expenses incurred as to any inquiry,
                  investigation or judicial or regulatory action or proceeding
                  relating to any of items (a) through (d) above.

         The terms "removal," "remedial," and "response action" include the
types of activities covered by the United States Comprehensive Environmental
Response, Compensation and Liability Act, 42 U.S.C. ss. 9601 et. seq., as
amended (CERCLA).

                                       2
<PAGE>

         "Excluded Current Assets" means cash and cash equivalents (as used in
the Pro Forma Balance Sheet) and any pre-paid insurance included in other
current assets (as used in the Pro Forma Balance Sheet).

         "Excluded Current Liabilities" means any long-term debt due currently
(as used in the Pro Forma Balance Sheet), any retiree obligations included in
employee related payables (as used in the Pro Forma Balance Sheet), preferred
stock dividends (as used in the Pro Forma Balance Sheet) and accrued incentive
plan obligations included in other accrued liabilities (as defined in the Pro
Forma Balance Sheet).

         "Excluded Subsidiaries" means any and all subsidiaries of TXU Gas
listed on Schedule 1.

         "Final Statement of Working Capital" means the unaudited special
purpose statement of Final Working Capital of TXU Gas as of the Closing Date, to
be prepared in accordance with Section 4.06(b).

         "Financial Statements" is defined in Section 5.04.

         "FIRPTA Affidavit" means an affidavit dated as of the Closing Date,
sworn under penalty of perjury, stating that TXU Gas is not a "foreign person"
within the meaning of Treasury Regulations section 1.1445-2(b) or other evidence
demonstrating that LSG has no withholding liability under Code section 1445.

         "Final Working Capital" means an amount equal to (i) Total Current
Assets (less Excluded Assets), (ii) minus Total Current Liabilities (less
Excluded Current Liabilities), calculated as of the Closing Date.

         "GAAP" means generally accepted accounting principles in the United
States of America as in effect from time to time and consistently applied.

         "Governmental Authority" means the United States and any state, county,
city or other political subdivision, agency, court or instrumentality.

         "HSR Act" means the Hart-Scott-Rodino Antitrust Improvements Act of
1976 (15 U.S.C.ss.18a), as amended.

         "Indemnified Party" is defined in Section 9.06(a).

         "Indemnifying Party" is defined in Section 9.06(a).

         "Intellectual Property" is defined in Section 3.01(f).

         "Knowledge" means, with respect to a Party hereto, the actual knowledge
of the officer of such Party in charge of a discrete business area or function
having responsibility for the referenced matter, after reasonable inquiry but
without investigation.

                                       3
<PAGE>

         "Laws" means any constitution, statute, code, regulation, rule,
injunction, judgment, order, decree, ordinance, or ruling of any Governmental
Authority.

         "Losses" is defined in Section 9.01.

         "Material Adverse Effect" means an occurrence or condition that has a
material adverse effect on the TXU Gas Merger Assets or the Business taken as a
whole or the operations, liabilities, financial condition or results of
operations of the Business, taken as a whole. For purposes of this Agreement, an
occurrence or condition will not constitute a Material Adverse Effect if it
arises from or is attributable to (a) general business, economic or financial
market conditions, (b) from conditions generally affecting the industry in which
the Business is conducted, or (c) changes in governmental or legislative laws,
rules or regulations.

         "Material Contracts" is defined in Section 5.08.

         "Merger" has the meaning set forth in the Recitals to this Agreement.
The Merger will be effected pursuant to this Agreement and will be consummated
by the filing, with the Secretary of State of the State of Texas, of the
Articles of Merger.

         "LSG Excluded Assets" has the meaning specified in Section 3.02.

         "LSG Indemnified Party" and "LSG Indemnified Parties" is defined in
Section 9.04.

         "LSG Indemnified Liabilities" is defined in Section 9.01.

         "LSG Merger Assets" means One Billion Nine Hundred Twenty-Five Million
Dollars ($1.925 Billion), as adjusted pursuant to Section 4.06.

         "LSG Parent" means Atmos Energy Corporation, a Texas and Virginia
corporation.

         "LSG Parent Guaranty" shall have the meaning set forth in Section 7.12.

         "LSG Retained Liabilities" has the meaning specified in Section 3.04.

         "Notices" is defined in Section 11.06.

         "Operating Contracts" is defined in Section 3.01(c).

         "Ordinary Course of Business" means the ordinary course of the
business, consistent with TXU Gas' past custom and practice.

         "Permits" is defined in Section 5.05.

         "Permitted Encumbrance" means any of the following: (i) any liens for
taxes and assessments not yet delinquent or, if delinquent, that are being
contested in good faith and for which TXU Gas is responsible hereunder; (ii) any
obligations or duties reserved to or vested in any Governmental Authority to
regulate any TXU Gas Merger Asset in any manner; (iii) the terms and conditions

                                       4
<PAGE>

of the Operating Contracts, to the extent that the terms thereof may be
interpreted as an Encumbrance on any TXU Gas Merger Asset; (iv) all immaterial
rights to consent by, required notices to, filings with or other actions by,
Governmental Authorities in connection with the Merger to the extent such
consents are customarily obtained after Closing; (v) any required third-party
consents to assignment and similar agreements and obligations with respect to
which, prior to the Closing: (A) waivers or consents have been obtained from the
appropriate party, (B) the applicable period of time for asserting such rights
has expired without any exercise of such rights, or (C) arrangements have been
made under Section 3.07 to allow LSG to receive substantially the same economic
benefits as if all such waivers and consents had been obtained; (vi) easements,
rights-of-way, servitudes, permits, surface leases and other rights with respect
to surface obligations, including (without limitation): pipelines, grazing,
canals, ditches, reservoirs, or the like, conditions, covenants or other
restrictions, and easements of or for streets, alleys, highways, pipelines,
telephone lines, power lines, railways, and any other easements and
rights-of-way on, over or in respect of any of the TXU Gas Merger Assets that
are not reasonably expected to have a Material Adverse Effect; and (vii)
materialmen's, mechanics', repairmen's, employees', contractors', operators',
tax and other similar liens or charges arising in the Ordinary Course of
Business incidental to construction, maintenance or operation of any of the TXU
Gas Merger Assets: (A) if they have not been filed pursuant to law, (B) if
filed, they have not yet become due and payable, or payment is being withheld as
provided by law, or (C) if their validity is being contested in good faith in
the Ordinary Course of Business by appropriate action and for which TXU Gas is
responsible, hereunder, provided that, except as described in clause (i) above,
Permitted Encumbrances shall not include any liability or obligation (or
encumbrance related thereto) that constitutes a TXU Gas Retained Liability.

         "Person" means any natural person, firm, partnership, association,
corporation, limited liability company, trust, entity, public body or
government.

         "Personal Property" is defined in Section 3.01(b).

         "Preliminary Statement of Working Capital" means the unaudited special
purpose statement of Preliminary Working Capital of TXU Gas as of the Closing
Date, to be prepared in accordance with Section 4.06(b).

         "Preliminary Working Capital" means an amount equal to (i) Total
Current Assets (less Excluded Assets), (ii) minus Total Current Liabilities
(less Excluded Liabilities), calculated as of the Closing Date.

         "Pro Forma Balance Sheet" means the balance sheet for quarter-ended
March 31, 2004, representing the TXU Gas Merger Assets and TXU Gas Merger
Liabilities as set forth on Schedule 2.

         "Pro Forma Balance Sheet Working Capital" means $121,162,787, being the
amount equal to (i) Total Current Assets (less Excluded Current Assets), minus
(ii) Total Current Liabilities (less Excluded Current Liabilities), calculated
as of the date of the Pro Forma Balance Sheet.

                                       5
<PAGE>

         "Real Property" is defined in Section 3.01(a).

         "Reasonable Efforts" means the efforts that a prudent Person desirous
of achieving a result would use in similar circumstances to ensure that such
result is achieved expeditiously; provided, however, that an obligation to use
Reasonable Efforts under this Agreement does not require the applicable Party to
incur any unreasonable cost or expense in connection therewith.

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

         "Statement of Objections" has the meaning given such term in Section
4.06(b) hereof.

         "Taxes" or "Tax" means any and all taxes, fees, levies, duties,
tariffs, imposts and other assessments, including, without limitation, federal,
state, local, and foreign income, gross receipts, franchise (excluding any
franchise fees or taxes payable to cities, towns, or other municipalities
pursuant to franchise agreements), earned surplus, windfall profits, severance,
excise, real or personal property, sales, use, withholding, social security,
occupation, service, service use, value added, license, capital, net worth,
payroll, employment or similar taxes, imposed by any Governmental Authority,
together with any interest, penalties or additions to tax and any additional
amounts imposed with respect thereto.

         "Tax Authority" means, with respect to any Tax, the governmental entity
or political subdivision thereof that imposes such Tax, and the agency (if any)
charged with the collection of such Tax for such entity or subdivision.

         "Tax Return" means any report of Taxes due, any claims for refund of
Taxes paid, any information return with respect to Taxes, or any other similar
report, statement, declaration, or document required to be filed under the
Internal Revenue Code or any other Law relating to any Tax, including any
attachments, exhibits, or other materials submitted with any of the foregoing,
and including any amendments or supplements to any of the foregoing.

         "Texas Law" means the Texas Business Corporation Act, as amended, or
any successor statutes and any regulations promulgated thereunder.

         "Third Party Claim" means a Claim asserted against an Indemnified Party
by a Person other than a Party to this Agreement or any Affiliate thereof.

         "Total Current Assets" means the total of the amounts corresponding to
the line items included in Current Assets (as used in the Pro Forma Balance
Sheet).

         "Total Current Liabilities" means the total of the amounts
corresponding to the line items included in Current Liabilities (as used in the
Balance Sheet).

         "Transfer Requirement" is defined in Section 3.07.

         "Transfer Taxes" means all Taxes (other than Taxes measured by net
income) incurred or imposed by reason of the Merger, regardless of upon whom
such Taxes are levied or imposed by Law, including sales and use Taxes, real
property transfer Taxes, excise Taxes, and stamp, documentary, filing,
recording, permit, license, or authorization duties or fees; provided that
Transfer Taxes do not include any such Taxes incurred or imposed by reason of
any transfers or other transactions between TXU Gas and any of its Affiliates,
whether or not contemplated hereby or in connection therewith.

                                       6
<PAGE>

         "Transferred Suspense Funds" is defined in Section 3.01(g).

         "Transitional Services Agreement" is defined in Section 4.03.

         "TXU Gas Excluded Assets" is defined in Section 3.02

         "TXU Gas Indemnified Party" and "TXU Gas Indemnified Parties" is
defined in Section 9.01.

         "TXU Gas Indemnified Liabilities" is defined in Section 9.01.

         "TXU Gas Merger Assets" is defined in Section 3.01.

         "TXU Gas Merger Liabilities" means: (i) all Losses and obligations
arising out of or relating to the ownership, use, construction, maintenance,
condition or operation of the TXU Gas Merger Assets before or after the
Effective Time, except for the TXU Gas Retained Liabilities; (ii) all
obligations and liabilities relating to litigation disclosed in Schedule 5.10
and not expressly designated thereon as a TXU Gas Retained Liability; (iii) all
Losses and obligations arising out of LSG's, its representatives', agents' or
contractors' presence on or access to any of the TXU Gas Merger Assets before
the Closing; (iv) all liabilities for Transfer Taxes; (v) all Environmental
Liabilities and Costs that are related to the TXU Gas Merger Assets; and (vi)
and all obligations under or arising out of LSG's or its representatives,
agents' or contractors' presence on, access to or use or location of assets on
any right-of-way or easement referred to in Section 7.08.

         "TXU Gas Parent" means TXU Corp., a Texas corporation.

         "TXU Gas Parent Guaranty" shall have the meaning set forth in Section
7.12.

         "TXU Gas Retained Liabilities" means: (i) all liabilities and
obligations arising out of or relating to the ownership, use, construction,
maintenance, condition or operation of the TXU Gas Excluded Assets; (ii) the
litigation (if any) disclosed in Schedule 5.10 and expressly designated thereon
as a TXU Gas Retained Liability; (iii) all fines and penalties incurred with
respect to any TXU Gas Merger Asset before the Effective Time and assessed by a
Governmental Authority (whether assessed before or after the Effective Time);
(iv) except as otherwise provided in this Agreement, all employee benefit and
welfare plan liabilities and obligations and all claims and liabilities arising
out of the employment relationship with TXU Gas or its Affiliates for the
employees and former employees of TXU Gas or its Affiliates and their
beneficiaries, or the termination of employment of any of such employees,
including (without limitation) all pension (including, without limitation, any
and all liabilities under Title IV of the Employee Retirement Income Security
Act of 1974, as amended ("ERISA") and the Internal Revenue Code of 1986, as
amended (the "Code"), retirement, severance, health (including, without
limitation, health care continuation coverage under Section 4980B of the Code
and Section 601 et.seq. of ERISA), vacation and other benefit and
employment-related liabilities and obligations (including, without limitation,
all liabilities and obligations to retirees of TXU Gas or its Affiliates and
their beneficiaries), and compliance with all laws in connection therewith, in
each case, relating to any period on or before the Effective Time; (v) all Tax
liabilities of TXU Gas or its Affiliates relating to any period on or before the
Effective Time (other than Transfer Taxes); (vi) any liability or obligation
owing to any Affiliate other than obligations arising after the Effective Time
under Operating Contracts; (vii) any indebtedness for money borrowed, reimbursed
obligations in respect of letters of credit or obligations in respect of
securitization transactions, including without limitation the Excluded Current
Liabilities; (viii) all Environmental Liabilities and Costs that are not related
to any TXU Gas Merger Asset; and (ix) all Losses and obligations arising out of
TXU Gas' or its Affiliates', or their representatives', agents' or contractors'
presence on, access to or use or location of assets on any right-of-way or
easement referred to in Section 3.02(j).

                                       7