OGE ENERGY CORP
10-Q, 1999-08-16
ELECTRIC SERVICES
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                                    FORM 10-Q
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

(Mark One)
[X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
    OF THE SECURITIES EXCHANGE ACT OF 1934

                  For the quarterly period ended June 30, 1999

                                       OR

[ ] TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE
    SECURITIES EXCHANGE ACT OF 1934

                         Commission file number 1-12579


                                OGE Energy Corp.
             (Exact name of registrant as specified in its charter)

              Oklahoma                                 73-1481638
   (State or other jurisdiction of                 (I.R.S.  Employer
    incorporation or organization)                 Identification No.)

                                321 North Harvey
                                  P. O. Box 321
                       Oklahoma City, Oklahoma 73101-0321
                    (Address of principal executive offices)
                                   (Zip Code)

                                  405-553-3000
              (Registrant's telephone number, including area code)


          Indicate  by check  mark  whether  the  registrant  (1) has  filed all
     reports  required  to be filed  by  Section  13 or 15(d) of the  Securities
     Exchange  Act of 1934 during the  preceding  12 months (or for such shorter
     period that the registrant was required to file such reports),  and (2) has
     been subject to such filing requirements for the past 90 days.

     Yes   X           No
        -------          -------

There  were  77,801,317  Shares of Common  Stock,  par  value  $0.01 per  share,
outstanding as of July 31, 1999.

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<PAGE>
<TABLE>
<CAPTION>

                                OGE ENERGY CORP.


                          PART I. FINANCIAL INFORMATION

ITEM 1  FINANCIAL STATEMENTS

                        CONSOLIDATED STATEMENTS OF INCOME
                                   (Unaudited)

                                                                        3 Months Ended                       6 Months Ended
                                                                           June 30                               June 30
                                                              --------------------------------     ---------------------------------
                                                                   1999             1998                1999               1998
                                                              --------------    --------------     --------------     --------------
                                                                                (THOUSANDS EXCEPT PER SHARE DATA)
<S>                                                           <C>               <C>                <C>                <C>
OPERATING REVENUES:
  Electric utility.........................................   $     314,102     $     336,017      $     564,246      $     572,662
  Non-utility subsidiaries.................................         136,759            76,604            264,820            127,326
                                                              --------------    --------------     --------------     --------------
    Total operating revenues...............................         450,861           412,621            829,066            699,988
                                                              --------------    --------------     --------------     --------------
OPERATING EXPENSES:
  Fuel.....................................................          75,284            78,555            132,966            138,169
  Purchased power..........................................          62,267            57,757            121,390            114,082
  Gas and electricity purchased for resale.................         110,899            55,777            212,356             85,507
  Other operation and maintenance..........................          79,390            79,302            153,734            158,596
  Depreciation.............................................          37,323            36,157             75,586             73,207
  Taxes other than income..................................          12,551            12,284             25,812             25,609
                                                              --------------    --------------     --------------     --------------
    Total operating expenses...............................         377,714           319,832            721,844            595,170
                                                              --------------    --------------     --------------     --------------
OPERATING INCOME...........................................          73,147            92,789            107,222            104,818
                                                              --------------    --------------     --------------     --------------

OTHER INCOME (EXPENSES):
  Interest charges.........................................         (19,272)          (16,035)           (37,572)           (31,975)
  Other, net...............................................           1,736              (107)             2,546              1,620
                                                              --------------    --------------     --------------     --------------
    Net other income (expenses)............................         (17,536)          (16,142)           (35,026)           (30,355)
                                                              --------------    --------------     --------------     --------------
EARNINGS BEFORE INCOME TAXES...............................          55,611            76,647             72,196             74,463

PROVISION FOR INCOME TAXES.................................          17,867            28,782             23,320             26,938
                                                              --------------    --------------     --------------     --------------
NET INCOME.................................................          37,744            47,865             48,876             47,525

PREFERRED DIVIDEND REQUIREMENTS............................               -                 -                  -                733
                                                              --------------    --------------     --------------     --------------
EARNINGS AVAILABLE FOR COMMON..............................   $      37,744     $      47,865      $      48,876      $      46,792
                                                              ==============    ==============     ==============     ==============
AVERAGE COMMON SHARES OUTSTANDING..........................          77,801            80,772             77,801             80,772

EARNINGS PER AVERAGE COMMON SHARE..........................   $        0.49     $        0.59      $        0.63      $        0.58
                                                              ==============    ==============     ==============     ==============
EARNINGS PER AVERAGE COMMON SHARE -
  ASSUMING DILUTION........................................   $        0.49     $        0.59      $        0.63      $        0.58
                                                              ==============    ==============     ==============     ==============
DIVIDENDS DECLARED PER SHARE...............................   $      0.3325     $      0.3325      $       0.665      $       0.665
<FN>
THE ACCOMPANYING NOTES TO CONSOLIDATED FINANCIAL STATEMENTS ARE AN INTEGRAL PART HEREOF.
</FN>
</TABLE>


                                        1


<PAGE>
<TABLE>
<CAPTION>

                            CONSOLIDATED BALANCE SHEETS
                                   (Unaudited)
                                                                             JUNE 30          DECEMBER 31
                                                                               1999               1998
                                                                          -------------      --------------
                                                                                (DOLLARS IN THOUSANDS)
<S>                                                                       <C>                <C>
ASSETS
CURRENT ASSETS:
  Cash and cash equivalents.....................................          $       1,962      $          378
  Accounts receivable - customers, less reserve of $3,101 and
    $3,342, respectively........................................                144,809             141,235
  Accrued unbilled revenues.....................................                 59,000              22,500
  Accounts receivable - other...................................                 13,306              12,902
  Fuel inventories, at LIFO cost................................                 85,321              57,288
  Materials and supplies, at average cost.......................                 36,171              29,734
  Prepayments and other.........................................                 19,758              31,551
  Accumulated deferred tax assets...............................                  8,609               7,811
                                                                          -------------      --------------
    Total current assets........................................                368,936             303,399
                                                                          -------------      --------------
OTHER PROPERTY AND INVESTMENTS, at cost.........................                 61,010              31,682
                                                                          -------------      --------------
PROPERTY, PLANT AND EQUIPMENT:
  In service....................................................              4,479,118           4,391,232
  Construction work in progress.................................                 36,948              50,039
                                                                          -------------      --------------
    Total property, plant and equipment.........................              4,516,066           4,441,271
      Less accumulated depreciation.............................              1,979,001           1,914,721
                                                                          -------------      --------------
  Net property, plant and equipment.............................              2,537,065           2,526,550
                                                                          -------------      --------------
DEFERRED CHARGES:
  Advance payments for gas......................................                 14,900              15,000
  Income taxes recoverable - future rates.......................                 40,211              40,731
  Other.........................................................                 66,539              66,567
                                                                          -------------      --------------
    Total deferred charges......................................                121,650             122,298
                                                                          -------------      --------------
TOTAL ASSETS....................................................          $   3,088,661      $    2,983,929
                                                                          =============      ==============

CAPITALIZATION AND LIABILITIES
CURRENT LIABILITIES:
  Short-term debt...............................................          $     298,800      $      119,100
  Accounts payable..............................................                 99,456              96,936
  Dividends payable.............................................                 25,869              26,865
  Customers' deposits...........................................                 23,880              23,985
  Accrued taxes.................................................                 45,132              30,500
  Accrued interest..............................................                 21,611              21,081
  Long-term debt due within one year............................                  2,000               2,000
  Other.........................................................                 33,510              50,266
                                                                          -------------      --------------
    Total current liabilities...................................                550,258             370,733
                                                                          -------------      --------------
LONG-TERM DEBT..................................................                934,650             935,583
                                                                          --------------     --------------
DEFERRED CREDITS AND OTHER LIABILITIES:
  Accrued pension and benefit obligation........................                 21,925              17,952
  Accumulated deferred income taxes.............................                523,925             531,940
  Accumulated deferred investment tax credits...................                 65,153              67,728
  Other.........................................................                 30,190              16,611
                                                                          -------------      --------------
    Total deferred credits and other liabilities................                641,193             634,231
                                                                          -------------      --------------
STOCKHOLDERS' EQUITY:
  Common stockholders' equity...................................                435,654             513,614
  Retained earnings.............................................                526,906             529,768
                                                                          -------------      --------------
    Total stockholders' equity..................................                962,560           1,043,382
                                                                          -------------      --------------
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY......................          $   3,088,661      $    2,983,929
                                                                          =============      ==============
<FN>

THE ACCOMPANYING NOTES TO CONSOLIDATED FINANCIAL STATEMENTS ARE AN INTEGRAL PART HEREOF.
</FN>
</TABLE>


                                        2
<PAGE>
<TABLE>
<CAPTION>

                           CONSOLIDATED STATEMENTS OF
                                   CASH FLOWS
                                   (Unaudited)
                                                                                      6 Months Ended
                                                                                          June 30
                                                                                  1999              1998
                                                                             --------------     --------------
                                                                                   (DOLLARS IN THOUSANDS)
<S>                                                                          <C>                <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net Income.........................................................        $      48,876      $      47,525
  Adjustments to Reconcile Net Income to Net
   Cash Provided From Operating Activities:
    Depreciation and amortization....................................               75,586             73,207
    Deferred income taxes and investment tax credits, net............               (9,495)            (1,552)
    Change in Certain Current Assets and Liabilities:
      Accounts receivable - customers................................               (3,574)           (41,474)
      Accrued unbilled revenues......................................              (36,500)           (24,200)
      Fuel, materials and supplies inventories.......................              (34,470)              (225)
      Accumulated deferred tax assets................................                 (798)              (796)
      Other current assets...........................................                8,520             (7,149)
      Accounts payable...............................................                2,520              1,193
      Accrued taxes..................................................               14,632             17,634
      Accrued interest...............................................                  530             (2,232)
      Other current liabilities......................................              (17,857)             8,220
    Other operating activities.......................................               16,081              2,224
                                                                             --------------     --------------
        Net cash provided from operating activities..................               64,051             72,375
                                                                             --------------     --------------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Capital expenditures...............................................              (89,336)           (76,886)
  Other investment activities........................................              (22,132)            (1,650)
                                                                             --------------     --------------
        Net cash used in investing activities........................             (111,468)           (78,536)
                                                                             --------------     --------------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Retirement of long-term debt.......................................               (1,000)          (112,500)
  Proceeds from long-term debt.......................................                    -            105,672
  Short-term debt, net...............................................              179,700            114,000
  Redemption of common stock.........................................              (77,962)                 -
  Redemption of preferred stock......................................                    -            (49,266)
  Cash dividends declared on preferred stock.........................                    -               (733)
  Cash dividends declared on common stock............................              (51,737)           (53,714)
                                                                             --------------     --------------
        Net cash provided from financing activities..................               49,001              3,459
                                                                             --------------     --------------
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS.................                1,584             (2,702)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD.....................                  378              4,257
                                                                             --------------     --------------
CASH AND CASH EQUIVALENTS AT END OF PERIOD...........................        $       1,962      $       1,555
                                                                             ==============     ==============

- --------------------------------------------------------------------------------------------------------------
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
  Cash Paid During the Period for:
    Interest (net of amount capitalized).............................        $      29,640      $      29,025
    Income taxes.....................................................        $      17,450      $      11,696
- --------------------------------------------------------------------------------------------------------------
<FN>
DISCLOSURE OF ACCOUNTING POLICY:
  For purposes of these statements, the Company considers all highly liquid debt
  instruments  purchased  with a  maturity  of three  months  or less to be cash
  equivalents. These investments are carried at cost, which approximates market.

THE ACCOMPANYING NOTES TO CONSOLIDATED FINANCIAL STATEMENTS ARE AN INTEGRAL PART HEREOF.
</FN>
</TABLE>


                                        3


<PAGE>


                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                  (Unaudited)

1.   The condensed  consolidated  financial statements included herein have been
     prepared by OGE Energy Corp. (the  "Company"),  without audit,  pursuant to
     the  rules and  regulations  of the  Securities  and  Exchange  Commission.
     Certain information and footnote disclosures normally included in financial
     statements  prepared  in  accordance  with  generally  accepted  accounting
     principles  have been  condensed  or  omitted  pursuant  to such  rules and
     regulations;  however,  the  Company  believes  that  the  disclosures  are
     adequate to make the information presented not misleading.

     In the opinion of management,  all adjustments  necessary to present fairly
     the financial  position of the Company and its  subsidiaries as of June 30,
     1999,  and December 31, 1998, and the results of operations and the changes
     in cash flows for the periods ended June 30, 1999, and June 30, 1998,  have
     been  included  and  are of a  normal  recurring  nature.  The  results  of
     operations for such interim periods are not  necessarily  indicative of the
     results  for  the  full  year.  It  is  suggested   that  these   condensed
     consolidated   financial   statements  be  read  in  conjunction  with  the
     consolidated  financial  statements  and the notes thereto  included in the
     Company's Form 10-K for the year ended December 31, 1998.

2.   In June 1998, the Financial  Accounting  Standards  Board  ("FASB")  issued
     Statement of Financial  Accounting  Standards ("SFAS") No. 133, "Accounting
     for Derivative  Instruments and for Hedging Activities",  with an effective
     date for periods  beginning  after June 15,  1999.  In July 1999,  the FASB
     issued SFAS No. 137,  "Accounting  for Derivative  Instruments  and Hedging
     Activities  Deferral of the  Effective  Date of FASB  Statement  No.  133".
     Adoption  of SFAS No. 133 is now  required  for  financial  statements  for
     periods  beginning  after June 15,  2000.  The Company  will adopt this new
     standard effective January 1, 2001, and management believes the adoption of
     this new  standard  will not have a  material  impact  on its  consolidated
     financial position or results of operation.

3.   Enogex  Inc.  and its  subsidiaries  ("Enogex"),  in the  normal  course of
     business, enters into fixed price contracts for either the purchase or sale
     of natural gas and electricity at future dates.  Due to fluctuations in the
     natural gas and electricity  markets, the Company buys or sells natural gas
     and electricity futures contracts,  swaps or options to hedge the price and
     basis risk associated with the  specifically  identified  purchase or sales
     contracts.  Additionally,  the  Company  will  use  these  contracts  as an
     enhancement  or  speculative  trade.  For  qualifying  hedges,  the Company
     accounts for changes in the market value of futures contracts as a deferred
     gain or loss until the production month for hedged  transactions,  at which
     time the gain or loss on the natural gas or electricity  futures  contract,
     swap or option is  recognized  in the  results of  operations.  The Company
     recognizes  the gain or loss on  enhancement  or  speculative  contracts as
     market values change in the results of operations.


                                       4


<PAGE>


ITEM 2  MANAGEMENT'S  DISCUSSION AND ANALYSIS OF FINANCIAL
        CONDITION AND RESULTS OF OPERATIONS


RESULTS OF OPERATIONS

OVERVIEW

     The following  discussion and analysis  presents factors which affected the
results  of  operations  for the  three  and six  months  ended  June  30,  1999
(respectively, the "current periods"), and the financial position as of June 30,
1999,  of the Company and its  subsidiaries:  Oklahoma Gas and Electric  Company
("OG&E"),  Enogex Inc.  ("Enogex") and Origen and its  subsidiaries  ("Origen").
Unless indicated otherwise,  all comparisons are with the corresponding  periods
of the prior year. For current periods,  approximately 70 percent and 68 percent
of the Company's revenues consisted of regulated sales of electricity by OG&E, a
public  utility,  while the remaining 30 percent and 32 percent were provided by
the  non-utility  operations  of Enogex.  Origen's  operations to date have been
deminimis.  Revenues from sales of  electricity  are somewhat  seasonal,  with a
large portion of OG&E's annual  electric  revenues  occurring  during the summer
months when the  electricity  needs of its  customers  increase.  Actions of the
regulatory  commissions  that set OG&E's  electric rates will continue to affect
the  Company's  financial  results.   Enogex's  primary  operations  consist  of
transporting  natural gas through its intra-state  pipeline to various customers
(including OG&E), processing natural gas liquids, marketing electricity, natural
gas and natural gas products and investing in the drilling for and production of
crude oil and natural  gas. On July 1, 1999,  Enogex  completed  its  previously
announced acquisition of Transok LLC, a gatherer,  processor, and transporter of
natural  gas  in  Oklahoma  and  Texas.   Transok's   principal  assets  include
approximately  4,900 miles of natural gas pipelines in Oklahoma and Texas with a
capacity of  approximately  1.2 billion  cubic feet per day and 18 billion cubic
feet of  underground  gas storage.  Transok also owns 9 gas  processing  plants,
which  produced  approximately  25,000 barrels per day of natural gas liquids in
1998. Enogex purchased Transok from Tejas Energy LLC of Houston, an affiliate of
Shell Oil Company,  for $701 million,  which includes assumption of $173 million
of long-term debt".

     Some of the matters discussed in this Form 10-Q may contain forward-looking
statements  that are subject to certain risks,  uncertainties  and  assumptions.
Actual results may vary  materially.  Factors that could cause actual results to
differ materially include,  but are not limited to: general economic conditions,
including  their  impact on capital  expenditures;  business  conditions  in the
energy industry; competitive factors; unusual weather; failure of companies that
the Company does business with to be Year 2000 ready;  regulatory  decisions and
other risk factors listed in the Company's Form 10-K for the year ended December
31, 1998 including  Exhibit 99.01 thereto and other factors  described from time
to time in the Company's reports to the Securities and Exchange Commission.


                                       5


<PAGE>


EARNINGS

     Net income  decreased  $10.1  million or 21.1  percent in the three  months
ended June 30, 1999.  Of the $10.1  million  decrease,  approximately  $12.1 was
attributable  to OG&E.  This  decrease  was  partially  offset by a $1.0 million
increase  attributable to Enogex and gains from other operations of the Company.
For the six months ended June 30, 1999, net income increased $1.4 million or 2.8
percent.  This $1.4  million was  primarily  attributable  to Enogex,  with OG&E
having  only a minimal  increase  for the six  months  ended June 30,  1999.  As
explained  below,  OG&E's  decrease in earnings for the three months ending June
30, 1999, was primarily attributable to lower revenues due to decreased sales to
OG&E  customers  ("system  sales")  due to cooler  weather in the OG&E  electric
service  area  and  lower  revenues  from  sales to other  utilities  and  power
marketers  ("off-system sales"). For the six months ending June 30, 1999, OG&E's
increase in earnings  reflects  lower  operating  expenses and taxes that offset
lower  revenues from system sales and off-system  sales.  The increase in Enogex
earnings is attributable to higher volumes in gas processing,  revenues from gas
storage operations,  improved natural gas prices, including the favorable impact
of hedging  operations and increased  activity in energy  trading.  Earnings per
average  common share  decreased from $0.59 to $0.49 and increased from $0.58 to
$0.63 in the current periods.

REVENUES

     Total operating  revenues increased $38.2 million or 9.3 percent and $129.1
million  or  18.4  percent  in the  current  periods.  These  increases  reflect
significantly  increased  Enogex energy trading  revenues,  partially  offset by
decreased electric sales by OG&E.

     Unfavorable   weather  in  the  OG&E  electric  service  area  and  reduced
off-system  sales resulted in reduced electric utility revenues of $21.9 million
and $8.4 million.

     Enogex revenues increased $60.4 million or 79.1 percent and $138.0 or 108.9
percent in the current  periods  largely due to increased  sales activity at its
OGE Energy  Resources  trading and energy  services  unit,  but also  reflecting
revenues from gas storage operations, the new Ozark pipeline project, processing
segment  volume  increases  and  better  natural  gas prices  including  hedging
revenues in its Enogex Exploration unit.

EXPENSES

     Total  operating  expenses  increased  $57.9 million or 18.1 percent in the
three months ended June 30, 1999.  This  increase was primarily due to increased
gas and electricity  purchased for resale and purchased power.  Enogex's gas and
electricity  purchased  for resale  pursuant to its gas and  electric  marketing
operations  increased  $55.1  million or 98.8  percent in the three months ended
June 30, 1999,  due to increased  volumes of natural gas purchased for resale to
third parties and increased volumes of electricity purchased for resale to third
parties.  OG&E's  purchased  power costs  increased  $4.5 million or 7.8 percent
primarily due to the availability of electricity at favorable prices.


                                       6


<PAGE>


     In the six months ended June 30, 1999,  total  operating  expenses  were up
$126.7  million or 21.3 percent due to increased gas and  electricity  purchased
for resale ($126.8 million or 148.3 percent) and purchased power (7.3 million or
6.4 percent).  This increase was due to the same factors as mentioned  above for
the three months ended June 30, 1999.

     Fuel expense  decreased $3.3 million or 4.2 percent and $5.2 million or 3.8
percent in the current  periods  primarily due to decreased  generation  levels,
resulting  from  unfavorable  weather in the OG&E electric  service area and the
significant reduction in off-system sales.  Variances in the actual cost of fuel
used in electric  generation and certain  purchased  power costs, as compared to
that component in cost-of-service  for ratemaking,  are passed through to OG&E's
electric customers through automatic fuel adjustment clauses. The automatic fuel
adjustment  clauses are subject to periodic  review by the Oklahoma  Corporation
Commission  ("OCC"),  the Arkansas  Public Service  Commission  ("APSC") and the
Federal  Energy  Regulatory  Commission  ("FERC").  Enogex  owns and  operates a
pipeline business that delivers natural gas to the generating  stations of OG&E.
The OCC, the APSC and the FERC have authority to examine the  appropriateness of
any gas transportation  charges or other fees OG&E pays Enogex, which OG&E seeks
to recover through the fuel adjustment clause or other tariffs.

     Other operation and  maintenance  increased $0.1 million or 0.1 percent and
decreased  $4.9  million or 3.1 percent.  The $4.9  million  decrease in the six
months ended June 30, 1999, was due to reduced miscellaneous corporate expenses.
This decrease was partially  offset by expenses  associated  with  tornadoes and
severe  thunderstorms  that  inflicted  heavy  damage  to OG&E's  power  supply,
transmission  and delivery systems on May 3, 1999. As previously  reported,  the
Company has estimated a total storm cost of  approximately  $15 million of which
approximately 25 percent will be expensed and the remainder capitalized.

     Depreciation  and  amortization  increased  $1.2 million or 3.2 percent and
$2.4  million or 3.2 percent  during the  current  periods due to an increase in
depreciable property.

     Interest charges increased $3.2 million or 20.2 percent and $5.6 million or
17.5  percent  primarily  due to higher  interest  charges  at Enogex  and costs
associated   with  increased   short-term   debt  (see  "Liquidity  and  Capital
Requirements").

LIQUIDITY AND CAPITAL REQUIREMENTS

     The  Company  meets its cash  needs  through  internally  generated  funds,
permanent financing and short-term  borrowings.  Internally  generated funds and
short-term  borrowings  are  expected  to meet  virtually  all of the  Company's
capital requirements through the remainder of 1999.  Short-term  borrowings will
continue to be used to meet temporary cash requirements.

     The Company's  primary needs for capital are related to construction of new
facilities to meet anticipated demand for OG&E's utility service,  to replace or
expand existing  facilities in OG&E's electric  utility  business and to acquire
new  facilities  or replace or expand  existing


                                       7


<PAGE>


facilities in its  non-utility  businesses,  and to some extent,  for satisfying
maturing debt.  Capital  expenditures  of $89.3 million for the six months ended
June 30, 1999 were  financed  with  internally  generated  funds and  short-term
borrowings.

     The Company's  capital  structure and cash flow remained strong  throughout
the current periods. The Company's combined cash and cash equivalents  increased
approximately  $1.6  million  during the six months  ended  June 30,  1999.  The
increase  reflects the Company's cash flow from operations and short-term  debt,
partially offset by the retirement of long-term debt, construction expenditures,
Enogex acquisition, redemption of common stock and dividend payments.

     As discussed previously,  on July 1, 1999, Enogex completed its acquisition
of Transok  for $701  million,  which  includes  assumption  of $173  million of
long-term  debt.  The purchase of Transok was  temporarily  funded through a new
revolving  credit  agreement  with a consortium of banks with the First National
Bank of Chicago  serving as agent.  The Company expects that this financing will
be replaced with permanent financing by June 30, 2000.

     In August 1999,  Standard & Poor's ("S&P")  downgraded the bank loan rating
of the Company and the ratings of OG&E,  Enogex and Transok.  The Company's bank
loan rating changed from "A+" to "A". OG&E's  corporate credit rating and senior
unsecured  debt  ratings were  changed  from "AA-" to "A+".  Enogex's  corporate
credit  rating and senior  unsecured  debt  ratings  were  changed  from "A-" to
"BBB+". Transok's corporate credit rating and senior unsecured debt ratings were
also changed from "A-" to "BBB+".  The  Company's  corporate  credit  rating and
commercial paper rating remained unchanged at "A+/A-1" and "A-1,"  respectively.
Also, in August 1999,  Moody's  Investors  Service  ("Moody's")  downgraded  the
commercial  paper rating of the Company and the ratings of OG&E and Enogex.  The
Company's  commercial  paper rating  changed from "P-1" to "P-2".  OG&E's senior
unsecured debt rating changed from "Aa3" to "A1". Enogex's senior unsecured debt
rating changed from "Baa1" to "Baa2". These ratings reflect the views of S&P and
Moody's, and an explanation of the significance of these ratings may be obtained
from S&P and Moody's.  A security rating is not a recommendation to buy, sell or
hold  securities  and is subject to  revision or  withdrawal  at any time by the
rating agency.

     Like any business, the Company is subject to numerous  contingencies,  many
of which are beyond its control.  For  discussion of  significant  contingencies
that could  affect the  Company,  reference  is made to Part II, Item 1 - "Legal
Proceedings" of this Form 10-Q, to Part II, Item 1 - "Legal  Proceedings" in the
Company's  Form 10-Q for the quarter  ended March 31, 1999 and to  "Management's
Discussion  and  Analysis"  and  Notes 10 and 11 of  Notes  to the  Consolidated
Financial Statements in the Company's 1998 Form 10-K.

THE YEAR 2000 ISSUE

     There has been a great deal of  publicity  about the Year 2000  ("Y2K") and
the  possible  problems  that  information  technology  systems  may suffer as a
result.  The Y2K problem


                                       8


<PAGE>


originated with the early development of computerized business applications.  To
save  then-expensive  storage space,  reduce the complexity of calculations  and
yield better system  performance,  programmers  and developers  used a two-digit
date scheme to represent the year (i.e.,  "72" for "1972").  This two-digit date
scheme was used well into the 1980s and 1990s in traditional  computer  hardware
such as mainframe systems,  desktop personal  computers and network servers,  in
customized software systems,  off-the-shelf  applications and operating systems,
as well as in  embedded  systems  ("chips")  in  everything  from  elevators  to
industrial   plants  to  consumer   products.   As  the  Year  2000  approaches,
date-sensitive  systems may recognize the Year 2000 as 1900, or not at all. This
inability  to  recognize  or  properly  treat the Year  2000 may cause  systems,
including those of the Company, its customers,  suppliers, business partners and
neighboring utilities to process critical financial and operational  information
incorrectly,  if they are not Year 2000 ready. A failure to identify and correct
any such  processing  problems prior to January 1, 2000 could result in material
operational and financial risks if the affected systems either cease to function
or produce  erroneous data.  Such risks are described in more detail below,  but
could include an inability to operate OG&E's generating  plants,  disruptions in
the operation of its transmission  and  distribution  system and an inability to
access interconnections with the systems of neighboring utilities.

     After the Company's  mainframe  conversion in 1994,  some 300 programs were
identified as having date sensitive  code. All of these programs have since been
corrected or replaced by Y2K ready packaged applications.

     The Company  continues to address the Y2K issues in an  aggressive  manner.
This is reflected by the January 1, 1997  implementation  throughout the Company
of SAP Enterprise  Software,  which is Y2K ready, for the financial systems. The
SAP installation significantly reduced the potential risks in our older computer
systems.   The  Company  is  making   significant   progress  towards  the  full
implementation of the  enterprise-wide  software system for customer systems.  A
portion of our customer  base began to be phased in to the new system in June of
1999. In addition to  significantly  reducing the potential risks of its current
customer  systems,  the Company is set to streamline  work processes in customer
service and power delivery by integrating  separate systems into a single system
using the  enterprise-wide  software  system.  This new single  system will also
provide  for a more  flexible  automated  billing  system  and  enhancements  in
handling customer service orders, energy outage incidents and customer services.

     In October of 1997, the Company formed a multi-functional  Y2K Project Team
of experienced and  knowledgeable  members from each business unit to review and
test its  operational  systems in an effort to further  eliminate  any potential
problems,  should they exist.  The team provides  regular monthly reports on its
progress to the Y2K Executive  Steering  Committee and senior management as well
as helping prepare presentations to the Board of Directors.

     The Company's Year 2000 effort generally follows a three-phase process:


                                       9


<PAGE>


         Phase I - Inventory and Assess Y2K Issues
         Phase II - Determine Y2K Readiness of Vendors, Suppliers & Customers
         Phase III - Correct, Test, Implement Solutions and Contingency Planning

STATE OF READINESS

     The Company has completed the internal  inventory and assessment  (Phase I)
of the Year 2000 plan.  Follow-up  vendor surveys are being sent to vendors that
have  not  responded  to our  original  requests  for  information  (Phase  II).
Remediation   is  complete  for  systems   essential  to  generate  and  deliver
electricity to our customers.  Even though contingency planning is a normal part
of our  business,  plans are being  updated and  finalized  to include  specific
activities with regard to Y2K issues (Phase III).

     In addition,  as a part of the  Company's  three-year  lease  agreement for
personal  computers,  all new personal computers are being issued with operating
systems and  application  software  that are Y2K ready.  All  existing  personal
computers have been upgraded with Y2K ready operating systems.  For embedded and
plant  operational  systems,  the Company has completed the corrective  process.
Also,  Supervisory  Control and Data  Acquisition  ("SCADA")  equipment has been
upgraded or replaced in some locations.  The Company's Energy  Management System
("EMS") that monitors  transmission  interconnections and automatically  signals
generation output changes was replaced in 1999. Software has been configured and
new equipment is installed and operational.

     The Company participated in the "Y2K Electric System Readiness  Assessment"
program,  which provides monthly reports to the Southwest Power Pool ("SPP") and
the North American Electric Reliability Council ("NERC").  In February 1999, the
Company  submitted  contingency plans to the NERC and the SPP which will be used
along  with  those of other  participating  companies  to  formulate  a regional
contingency  plan. In April 1999, the Company also  participated in a nationwide
communications  drill as a part of the electric utility industry's Y2K readiness
preparation.  The purpose of the drill was to determine  how electric  utilities
would  communicate  with one another in the event of an interruption of standard
communication  systems.  The  ability  to  communicate  would  be  important  to
coordinate  the flow of electricity  over the nation's  electric grid. The drill
was  successful  overall and  communications  in the SPP went smoothly with only
minor problems  noted.  On June 28, 1999, the Company  reported to the NERC that
its essential systems used to produce and deliver electricity were ready for the
year 2000. The responses from all participating companies are being compiled for
an  industry-wide  status report to the Department of Energy ("DOE").  Also, the
Company plans to participate in the September 9, 1999, NERC drill.

COSTS OF YEAR 2000 ISSUES

     As described above, with the mainframe conversion,  the enterprise software
installations and the EMS replacement,  a number of Y2K issues were addressed as
part of the  Company's  normal  course  upgrades to the  information  technology
systems.  These  upgrades  were already


                                       10


<PAGE>


contemplated and provided  additional  benefits or efficiencies  beyond the Year
2000  aspect.  Since 1995 the  Company has spent in excess of $37 million on the
mainframe  conversion,  the initial financial  enterprise software systems,  the
customer  care  enterprise  software  installations  to-date  and the  SCADA/EMS
replacement. The Company expects to spend slightly less than $5 million in 1999.
These costs  represent  estimates,  however,  and there can be no assurance that
actual costs associated with the Company's Y2K issues will not be higher.

RISKS OF YEAR 2000 ISSUES

     As  described  above,  the  Company  has made  significant  progress in the
implementation of its Year 2000 plan. Based upon the information currently known
regarding its internal  operations and assuming successful and timely completion
of its remediation  plan, the Company does not anticipate  significant  business
disruptions from its internal systems due to the Y2K issue. However, the Company
may possibly experience limited interruptions to some aspects of its activities,
whether information technology,  operational,  administrative or otherwise,  and
the Company is considering  such potential  occurrences in planning for its most
reasonably likely worst case scenarios.

     Additionally, risk exists regarding the non-readiness of third parties with
key  business or  operational  importance  to the  Company.  Year 2000  problems
affecting  key   customers,   interconnected   utilities,   fuel  suppliers  and
transporters,  telecommunications  providers  or  financial  institutions  could
result  in  lost  power  or  gas  sales,   reductions  in  power  production  or
transmission or internal functional and administrative  difficulties on the part
of the  Company.  Although  the  Company  is not  presently  aware  of any  such
situations,  occurrences  of this type, if severe,  could have material  adverse
impacts  upon the  business,  operating  results or  financial  condition of the
Company. There can be no assurance that the Company will be able to identify and
correct all aspects of the Year 2000 problem that affect it in sufficient  time,
that it will develop adequate  contingency  plans or that the costs of achieving
Y2K readiness will not be material.

RECENT REGULATORY MATTERS

     On  July  15,   1999,   OG&E  filed  with  the  OCC  for   approval   of  a
performance-based  ratemaking  plan that could lower  rates for OG&E's  Oklahoma
customers by $83 million during the transition to deregulated customer choice in
mid-2002.  OG&E is the  first  utility  in  Oklahoma  and among the first in the
nation to seek approval of such a plan.

     Under the proposed performance-based ratemaking plan, OG&E's rates would be
lowered by $29  million a year  compared to June 1999  rates,  resulting  in $83
million in savings for customers during the 30-month period ending July 1, 2002.
The rates would be fixed and guaranteed.  This would be  accomplished,  in part,
through the elimination of OG&E's current fuel  adjustment  clause through which
increases and  decreases in fuel costs are passed on to  customers.  The risk of
higher prices for the coal and natural gas used in generating  electricity would
then shift from the customer to OG&E.


                                       11


<PAGE>


     Another key component of the proposed performance-based  ratemaking plan is
a service quality incentive mechanism, pursuant to which OG&E's performance will
be  measured  against  its  own  benchmarks  and  recognized   utility  industry
standards.  These  measurements will then be used in a financial  reward/penalty
program to promote continued  reliability in OG&E's electric system, high levels
of customer satisfaction and employee safety.

     OG&E believes that the lower electric rates would be made possible in part,
by a reduction  in the cost of  transporting  natural  gas to its power  plants.
Under the proposal,  Enogex would remain OG&E's  natural gas  transporter  at an
annual  rate of $25  million,  down from the current  $41  million  rate.  Other
provisions of the proposed performance-based ratemaking plan include termination
of the generation  efficiency  performance  rider and the  termination of OG&E's
rider for off-system  electricity  sales.  In Oklahoma,  profits from off-system
sales are shared  equally  between  customers  and  shareowners.  OG&E  believes
termination of this rider is consistent  with providing  customers  fixed rates,
and would allow OG&E to benefit from effectively managing its business.

     If   approved   by  the   OCC,   the  key   provisions   of  the   proposed
performance-based ratemaking plan will go into effect on January 1, 2000.

     As previously reported, on February 13, 1998, The APSC staff filed a motion
for a show cause order to review OG&E's electric rates in the State of Arkansas.
The Staff recommended a $3.1 million annual rate reduction (based on a test year
ended  December 31,  1996).  The Staff and OG&E have reached a settlement  for a
$2.3 million annual rate reduction.  The settlement was presented to the APSC on
May 18, 1999.  The APSC issued an order  approving  the  settlement on August 6,
1999.

     On April 8, 1999,  lawmakers in Arkansas reached  consensus on deregulation
of the state's electric industry.  On April 15, 1999, Senate Bill 791 was signed
by the  governor of  Arkansas.  Arkansas is the 18th state to pass a law calling
for restructuring of the electric utility industry. The new law targets customer
choice of  electricity  providers by January 1, 2002.  The new law also provides
that utilities owning or controlling  transmission  assets must transfer control
of such  transmission  assets to an  independent  system  operator,  independent
transmission  company or regional  transmission  group, if any such organization
has been approved by the FERC.  Other provisions of the new law permit municipal
electric  systems  to opt in or out,  permit  recovery  of  stranded  costs  and
transition  costs and require  unbundled  rates by July 1, 2000 for  generation,
transmission, distribution and customer service. If implemented as proposed, the
new law will  significantly  affect OG&E's future  Arkansas  operations.  OG&E's
electric service area includes parts of western Arkansas,  including Fort Smith,
the second-largest metropolitan market in the state.

     As  previously  reported,  Oklahoma  enacted  in April  1997  the  Electric
Restructuring Act of 1997.  Various  amendments to the Act were enacted in 1998.
OG&E remains  involved in the rulemaking  process that will provide for customer
choice in Oklahoma by July 1, 2002.


                                       12


<PAGE>


REPORT OF BUSINESS SEGMENTS

     The Company's  electric utility  operations are conducted  through OG&E, an
operating public utility engaged in the generation, transmission,  distribution,
and sale of electric energy.  The non-utility  operations are conducted  through
Enogex and Origen.  Enogex is engaged in gathering and  processing  natural gas,
producing natural gas liquids, transporting natural gas through its pipelines in
Oklahoma  and  Arkansas  for  various  customers  (including  OG&E),   marketing
electricity,  natural gas and natural gas liquids and  investing in the drilling
for and  production  of crude oil and  natural  gas.  Origen is  engaged  in the
development of new products.  Origen's results to date have not been material to
the Company.  The following is the Company's  business  segment  results for the
current periods.

<TABLE>
<CAPTION>

                                                                        3 Months Ended                       6 Months Ended

                                                                           June 30                               June 30

                                                                   1999             1998                1999               1998
                                                              --------------------------------     ---------------------------------
                                                                                      (DOLLARS IN THOUSANDS)
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                           <C>               <C>                <C>                <C>
Operating Information:

 Operating Revenues
  Electric utility.........................................   $     314,102     $     336,017      $     564,246      $     572,662
  Non-utility..............................................         191,967           123,668            346,317            203,160
  Intersegment revenues (A)................................         (55,208)          (47,064)           (81,497)           (75,834)
                                                              --------------    --------------     --------------     --------------
    Total..................................................   $     450,861     $     412,621      $     829,066      $     699,988
                                                              --------------    --------------     --------------     --------------

 Net Income
  Electric utility.........................................   $      33,729     $      45,879      $      43,919      $      43,800
  Non-utility..............................................           4,015             1,986              4,957              3,725
- ------------------------------------------------------------------------------------------------------------------------------------
    Total..................................................   $      37,744     $      47,865      $      48,876      $      47,525
- ------------------------------------------------------------------------------------------------------------------------------------
<FN>
(A)  Intersegment  revenues  are  recorded  at  prices  comparable  to  those of
unaffiliated customers and are affected by regulatory considerations.
</FN>
</TABLE>


                                       13


<PAGE>


                           PART II. OTHER INFORMATION


ITEM 1  LEGAL PROCEEDINGS

     Reference  is  made  to  Item 3 of  the  Company's  1998  Form  10-K  for a
description of certain legal proceedings presently pending.  Except as described
below,  there are no new significant  cases to report against the Company or its
subsidiaries  and  there  have been no  significant  changes  in the  previously
reported proceedings.

     United States of America ex rel.,  Jack J. Grynberg v. Enogex Inc.,  Enogex
Services  Corporation and Oklahoma Gas & Electric Company.  In the United States
District Court for the Western District of Oklahoma Case No.  CIV-97-1010-L.  On
June 15, 1999, the Company was served with  Plaintiff's  Complaint.  Plaintiff's
action is a qui tam  action  under  the False  Claims  Act.  Plaintiff,  Jack J.
Grynberg,  as  individual  Relator  on behalf of the United  States  Government,
alleges:  (1) each of the named  Defendants  have  improperly and  intentionally
mismeasured gas (both volume and BTU content)  purchased from federal and Indian
lands  which  have  resulted  in the  under-reporting  and  underpayment  of gas
royalties owed to the Federal Government; (2) certain provisions generally found
in gas purchase contracts are improper; (3) transactions by affiliated companies
are not arms-length;  (4) excess  processing cost deduction;  and (5) failure to
account for  production  separated out as a result of gas  processing.  Grynberg
seeks the following  damages:  (a) additional  royalties  which he claims should
have been paid to the Federal Government,  some percentage of which Grynberg, as
Relator,  may be entitled to recover;  (b) treble damages;  (c) civil penalties;
(d) an order  requiring  Defendants to measure gas the way Grynberg  contends is
the better way to do so; and (e) interest costs and attorneys'  fees.  Plaintiff
has filed  over 70 other  cases  naming  over 300 other  defendants  in  various
Federal Courts across the country containing nearly identical allegations.

     In qui tam actions,  the United  States  government  can intervene and take
over such actions from the Relator.  The Department of Justice, on behalf of the
United States government,  has decided not to intervene in this action or any of
the other "Grynberg qui tam actions."

     There are currently  pending before the court various  motions filed by the
parties.  At this time, the Company cannot predict the ultimate  outcome of this
proceeding,  but the Company  does not believe  this matter will have a material
adverse impact on the Company's  consolidated  financial  position or results of
operations.

ITEM 4 SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

     (a) The Company's Annual Meeting of Shareowners was held on May 27, 1999

     (b) Not applicable.

     (c) The  matters voted  upon  and the results of  the voting at the  Annual
         Meeting


                                       14


<PAGE>


         were as follows:

         (1)  The Shareowners voted to elect the Company's nominees for election
              to the Board of Directors as follows:

              Herbert H. Champlin - 62,040,414 votes for election and
              860,654 votes withheld

              Martha W. Griffin - 61,971,288 votes for election and 929,780
              votes withheld

              Donald H. White - 61,962,979 votes for election and 938,089
              votes withheld

ITEM 6  EXHIBITS AND REPORTS ON FORM 8-K

     (a) Exhibits

           2.01 - Purchase Agreement,  dated as of May 14, 1999,
                  by and between Tejas Gas, LLC and Enogex Inc.

          27.01 - Financial Data Schedule.

(b)      Reports on Form 8-K

         (1) Item 5. Other Events, dated May 20, 1999.


                                       15


<PAGE>


                                   SIGNATURES

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.


                                                 OGE ENERGY CORP.
                                                   (Registrant)



                                       By      /s/ Donald R. Rowlett
                                         ---------------------------------------
                                                   Donald R. Rowlett
                                           Controller Corporate Accounting

                                         (On behalf of the registrant and in
                                       his capacity as Chief Accounting Officer)

August 13, 1999


                                       16


<PAGE>


<TABLE>


                                 EXHIBIT INDEX

<CAPTION>
EXHIBIT INDEX             DESCRIPTION
- -------------             -----------
   <S>                    <C>
    2.01                  Purchase Agreement, dated as of  May 14, 1999, by  and
                          between Tejas Gas, LLC and Enogex Inc.

   27.01                  Financial Data Schedule


</TABLE>




                                                                    Exhibit 2.01

                               PURCHASE AGREEMENT

                                 by and between

                                 TEJAS GAS, LLC

                                       and

                                   ENOGEX INC.

                            Dated as of May 14, 1999


                                       17


<PAGE>


                                TABLE OF CONTENTS





ARTICLE I         DEFINITIONS AND TERMS
     1.01         Specific Definitions
     1.02         Construction and Interpretation

ARTICLE II        PURCHASE AND SALE
     2.01         Purchase and Sale of Membership Interests
     2.02         Purchase Price
     2.03         The Closing
     2.04         Deliveries
     2.05         Allocation of Purchase Price
     2.06         Sale of Greasy Creek Gas Inventory
     2.07         Post-Closing Adjustments

ARTICLE III       REPRESENTATIONS AND WARRANTIES OF THE SELLERAS TO THE SELLER
     3.01         Organization
     3.02         Ownership of Membership Interests
     3.03         Validity and Enforceability
     3.04         Approvals
     3.05         No Violation
     3.06         Litigation
     3.07         Brokerage Agreements

ARTICLE IV        REPRESENTATIONS AND WARRANTIES OF THE SELLERAS TO THE COMPANY
     4.01         Organization
     4.02         Capitalization
     4.03         No Violation
     4.04         Litigation
     4.05         Compliance With Applicable Law
     4.06         Permits
     4.07         Taxes
     4.08         Environmental Compliance
     4.09         Disclaimer of other Representations and Warranties
     4.10         Major Acquired Assets
     4.11         Subsidiaries
     4.12         Major Contracts
     4.13         Financial Statements


                                       18


<PAGE>


     4.14         Absence of Certain Changes
     4.15         Employee Agreements and Plans
     4.16         Employee Relations
     4.17         CSW Claims
     4.18         FERC Reports

ARTICLE V         REPRESENTATIONS AND WARRANTIES OF PURCHASER
     5.01         Organization and Good Standing
     5.02         Authorization of Agreement
     5.03         No Violations
     5.04         Consents and Approvals
     5.05         Litigation; Impairment
     5.06         No Brokers
     5.07         Purchaser=s Knowledge and Expertise
     5.08         Financing
     5.09         No Reliance
     5.10         Knowledge
     5.11         Investment Intent

ARTICLE VI        COVENANTS
     6.01         Conduct of the Business Pending the Closing
     6.02         Access to Information
     6.03         Consents
     6.04         Public Announcements
     6.05         Environmental Matters
     6.06         Employee Related Matters
     6.07         Supplemental Disclosures
     6.08         Options Concerning El Paso Agreements
     6.09         Casualty Loss
     6.10         Customer Relations
     6.11         Dormant Subsidiaries
     6.12         Corporate Books
     6.13         Rate Proceedings
     6.14         Change of Name
     6.15         Termination of Transok Properties Indemnities
     6.16         Intercompany Disputes

ARTICLE VII       CONDITIONS TO CLOSING
     7.01         General Conditions
     7.02         Conditions to Obligations of the Seller
     7.03         Conditions to Obligations of Purchaser

ARTICLE VIII      TERMINATION
     8.01         Termination


                                       19


<PAGE>


     8.02         Effect of Termination

ARTICLE IX        INDEMNIFICATION; SURVIVAL
     9.01         Indemnification by Purchaser
     9.02         Indemnification by Seller
     9.03         Indemnification Procedure
     9.04         Survival
     9.05         Indemnification Limitation
     9.06         Excluded Proceeding

ARTICLE X         GENERAL PROVISIONS
    10.01         Expenses and Taxes
    10.02         Amendment
    10.03         Waiver
    10.04         Notices
    10.05         Headings and Schedules
    10.06         Applicable Law
    10.07         No Third Party Rights
    10.08         Counterparts
    10.09         Severability
    10.10         Entire Agreement
    10.11         Arbitration; Waiver
    10.12         Fair Construction
    10.13         Forwarding Notices


                                       20


<PAGE>


                           LIST OF SCHEDULES
                           -----------------

Schedule 3.01              List of Subsidiaries
- -------------
Schedule 3.04              Required Consents
- -------------
Schedule 4.02(a)           Outstanding Stock Appreciation, Phantom Stock, Profit
- ----------------           Participation, or Similar Rights

Schedule 4.02(b)           List of Subsidiaries, Jurisdiction of  Incorporation,
- ----------------           Number of Issued and Outstanding  Capital Stock,  and
                           Membership Interests of each

Schedule 4.04              Litigation
- -------------
Schedule 4.05              Compliance with Laws
- -------------
Schedule 4.06              Permits
- -------------
Schedule 4.07              Taxes
- -------------
Schedule 4.08              Environmental Matters
- -------------
Schedule 4.10              Major Acquired Assets and Spatial Gaps
- -------------
Schedule 4.11              Ownership Interests in Companies other the
- -------------              Subsidiaries

Schedule 4.12              Major Contracts
- -------------
Schedule 4.15(a)           Liability under Benefit Plans, Severance,  Employment
- ----------------           or Compensation Related Contracts

Schedule 4.15(b)           Benefit Plans
- ----------------
Schedule 4.15(e)           Post-Retirement Welfare Benefits and Medical Benefits
- ----------------
Schedule 4.16(a)           Compliance with Employment Laws
- ----------------
Schedule 4.16(b)           Unfair Labor Practices
- ----------------
Schedule 4.17              CSW Claims
- -------------
Schedule 6.01(a)           Capital Expenditures
- ----------------
Schedule 6.06              Employees
- -------------


                                       21


<PAGE>


                           LIST OF EXHIBITS
                           ----------------


Exhibit A                  Knowledge of Seller
- ---------
Exhibit B                  Knowledge of Purchaser
- ---------
Exhibit C                  Assignment of Membership Interests
- ---------
Exhibit D                  Allocation of Purchase Price
- ---------
Exhibit E                  Guaranty
- ---------
Exhibit F                  Waiver of Required Consents
- ---------


                                       22


<PAGE>


                               PURCHASE AGREEMENT
                               ------------------


     This PURCHASE AGREEMENT,  dated as of May 14, 1999, is by and between TEJAS
GAS, LLC, a Delaware limited liability company  ("Seller"),  and ENOGEX INC., an
                                                  ------
Oklahoma corporation ("Purchaser").
                       ---------
     The  Seller  is the  owner  of all of the  issued  and  outstanding  equity
interests (the "Membership Interests") of Tejas Transok Holding, LLC, a Delaware
                --------------------
limited liability company (the "Company");
                                -------
     On the terms and subject to the conditions contained in this Agreement, the
Seller  desires to sell and  Purchaser  desires to purchase  all of the Seller=s
right, title and interest in and to the Membership Interests;

     NOW, THEREFORE, the parties agree as follows:


                                    ARTICLE I
                              DEFINITIONS AND TERMS
                              ---------------------

     I.1 Specific  Definitions.  As used in this Agreement,  the following terms
         ---------------------
have the following meanings:

     "Affiliate"  means,  with  respect to any  Person,  any Person  directly or
      ---------
indirectly controlling, controlled by or under common control with, such Person.
For the purposes of this  definition,  "control"  (including,  with  correlative
                                        -------
meaning,  the terms  "controlling,"  "controlled  by" and "under common  control
                      -----------     --------------       ---------------------
with") means the possession,  directly or indirectly,  of the power to direct or
- ----
cause the  direction  of  management  and  policies of such  Person  through the
ownership of more than 10% of the voting securities, by contract or otherwise.

     "Agreement"  means this Purchase  Agreement,  as the same may be amended or
      ---------
supplemented from time to time.

     "Benefit  Plans" means any employee  pension  benefit plan  (whether or not
      --------------
insured), as defined in Section 3(2) of ERISA, any employee welfare benefit plan
(whether or not insured) as defined in Section  3(1) of ERISA,  any stock bonus,
stock  ownership,  stock option,  stock  purchase,  stock  appreciation  rights,
phantom stock or other stock plan (whether  qualified or nonqualified),  and any
bonus or incentive or deferred  compensation plan or fringe benefit  arrangement
in which any of the present or former directors,  officers,  employees,  agents,
consultants or other similar  representatives  providing  services to or for the
Company or any of its Subsidiaries participate in connection with such services,
but only to the extent the Company or any of its  Subsidiaries are liable for or
bear the burden of such compensation or benefit.


                                       23


<PAGE>


     "Business  Day"  means any day other than a  Saturday,  a Sunday or a legal
      -------------
holiday on which banks in Houston,  Texas and New York,  New York are authorized
or obligated by Law to close.

     "Claim Notice" has the meaning specified in Section 9.03(a).
      ------------

     "Closing"  means  the  closing  of the  transactions  provided  for in this
      -------
Agreement.

     "Closing Balance Sheet" means the unaudited,  consolidated balance sheet of
      ---------------------
the Company and its  Subsidiaries  as of the last day of the month preceding the
day of the Closing unless the Closing occurs on the last day of a calendar month
in which case the Closing Balance Sheet will be as of the day of the Closing.

     "Closing  Date" means the date on which the  Closing  occurs as provided in
      -------------
Section 2.03.

     "Closing Date Working Capital" has the meaning specified in Section 2.07.
      ----------------------------
     "Code" means the United States Internal Revenue Code of 1986, as amended.
      ----
     "Company" has the meaning specified in the recitals.
      -------
     "Company Balance Sheets" has the meaning specified in Section 4.13.
      ----------------------
     "Company Group" has the meaning specified in Section 4.15.
      -------------
     "Company Financial Statements" has the meaning specified in Section 4.13.
      ----------------------------
     "Confidentiality  Agreement"  means the  Confidentiality  Agreement,  dated
      --------------------------
March 16, 1999 between Seller and Purchaser.

     "Consent" means any consent,  waiver, approval,  authorization,  exemption,
      -------
registration or declaration.

     "Continued Employees" has the meaning specified in Section 6.06.
      -------------------
     "Contracts"  means all  agreements,  contracts,  leases,  purchase and sale
      ---------
orders,  arrangements,  commitments  and licenses to which the Company or any of
its Subsidiaries is a party.

     "Coral  Agreements"  means (i)the Master Agreement in the form published by
      -----------------
the International  Swaps and Derivatives  Association,  Inc. ("ISDA Agreement"),
including the schedules thereto,  dated April 1, 1999, between Tejas Energy, LLC
and  Transok,  LLC,  under


                                       24


<PAGE>


which  Transok,  LLC will enter into the Transok  Swap  Transaction  in order to
hedge the natural gas stored at the Greasy Creek  Storage  Facility,  which ISDA
Agreement  and Transok Swap  Transaction  will be  guaranteed  by the  Purchaser
Guarantor concurrently with Purchaser=s purchase of such natural gas pursuant to
the Storage Gas Purchase  Agreement;  (ii) the Assignment  pursuant to which the
Company and its  Affiliates  will assign to Seller and its Affiliates all claims
against  third  parties  relating to migrated  gas at the Greasy  Creek  storage
facility;  (iii) the Gas  Purchase  Agreement  dated May 14,  1999,  under which
Transok Gas, LLC will sell to Coral Energy Resources, L.P. up to 50,000 MMBtu of
gas per day; (iv) the  Non-Dedicated  Interruptible  Service Agreement dated May
14,  1999,  pursuant  to which  Transok,  LLC will  transport  for Coral  Energy
Resources,  L.P. up to 50,000  MMBtu of gas per day (limited to any volumes sold
and purchased under the Gas Purchase  Agreement referred to under clause (iii));
(v) the Bill of Sale of  Natural  Gas dated  April 1,  1999,  pursuant  to which
Transok Gas, LLC has sold 14,127,802  MMBtu of natural gas located in the Greasy
Creek  Storage  Facility  to Tejas Gas  Marketing,  LLC;  (vi) the Firm  Storage
Service  Agreement  dated  April 1, 1999,  pursuant to which  Transok,  LLC will
provide storage services for up to 18,000,000 MMBtu of natural gas for Tejas Gas
Marketing,  LLC until Closing,  (vii) the El Paso Sale  Agreement  dated May 14,
1999;  (viii) the  Assignment  Agreement  dated as of May 14, 1999 wherein Coral
Energy Resources,  L.P. will assign certain gas sales agreements to Transok Gas,
LLC effective as of the Closing Date; (ix) the Assignment Agreement (NGPL) dated
May 3, 1999 wherein  Transok Gas, LLC will assign to Tejas Gas Marketing,  LLC a
storage agreement dated April 1, 1997, between Transok Gas Company,  predecessor
to the assignor,  and Natural Gas Pipeline Company of America;  and (x) the Bill
of Sale of Natural Gas dated May 1, 1999, pursuant to which Transok Gas, LLC has
sold  2,488,678  MMBtu's of natural gas located in the NGPL storage  facility to
Tejas Gas Marketing, LLC.

     "Coral Services" has the meaning specified in Section 4.15.
      --------------
     "Coral Thrift Plan" has the meaning specified in Section 6.06.
      -----------------
     "Court"  means  any  federal,   state,   or  local  court,  or
      -----
arbitration tribunal.

     "CSW Indemnity" means the Agreement of Merger,  dated May 9, 1996,  between
      -------------
Central  and  South  West  Corporation  and Tejas Gas  Corporation  relating  to
Transok, Inc., and assigned to the Company on June 6, 1996.

     "Current  Assets" means those assets  classified  as current  assets of the
      ---------------
Company and its  Subsidiaries in accordance with generally  accepted  accounting
principles.

     "Current  Liabilities"  means  those  liabilities   classified  as  current
      --------------------
liabilities  of the Company and its  Subsidiaries  in accordance  with generally
accepted accounting principles.

     "Damages" has the meaning specified in Section 9.01.
      -------


                                       25


<PAGE>


     "Deloitte Report" has the meaning specified in Section 2.07.
      ---------------
     "Deposit" has the meaning specified in Section 2.02.
      -------
     "Direct Claim" has the meaning specified in Section 9.03(a).
      ------------
     "Disagreement"  and  "Disagreements"  have the meaning specified in Section
      ------------         -------------
2.07.

     "Disclosure Memorandum" has the meaning specified in Article III.
      ---------------------
     "El Paso Sale Agreement" means the Gas Sale Agreement (El Paso) dated as of
      ----------------------
April 6, 1999,  between Coral Energy  Resources,  L.P., as seller,  and Transok,
LLC, as buyer.

     "El  Paso   Transportation   Agreements"  means,   collectively,   (i)  the
      --------------------------------------
Transportation  Service Agreement (9K3X) dated as of November 23, 1998,  between
El Paso  Natural  Gas  Company  and  Coral  Energy  Resources,  L.P.;  (ii)  the
Transportation  Service Agreement (9K3Y) dated as of November 23, 1998,  between
El  Paso  Natural  Gas  Company  and  Coral  Energy   Resources,   L.P.;   (iii)
Transportation  Service Agreement (9K3Z) dated as of November 23, 1998,  between
El Paso  Natural Gas  Company and Coral  Energy  Resources,  L.P.;  and the (iv)
Transportation  Service Agreement (9K42) dated as of November 23, 1998,  between
El Paso Natural Gas Company and Coral Energy Resources, L.P.

     "Environmental Laws" means any and all laws, statutes,  regulations, rules,
      ------------------
orders,  ordinances,  and any judicial or  administrative  orders,  judgments or
interpretations of any Governmental  Authority  pertaining to the environment in
effect or applicable on, or prior to, the Closing Date in any  jurisdictions  in
which  the  assets  on the  property  of  the  Company  or any of the  Company's
Subsidiaries is located,  or the business of the Company or any of the Company's
Subsidiaries  is at any time conducted,  or where any off-site  location (as set
forth in Section 4.08) is located, including,  without limitation, the Clean Air
Act, as amended  (including the Clean Air Act  Amendments of 1990),  the Federal
Water Pollution Control Act, as amended,  the Rivers and Harbors Act of 1899, as
amended,   the  Safe  Drinking   Water  Act,  as  amended,   the   Comprehensive
Environmental  Response,  Compensation and Liability Act, as amended ("CERCLA"),
the Superfund  Amendments and the Reauthorization  Act of 1986, as amended,  the
Resource  Conservation and Recovery Act, as amended ("RCRA"),  the Hazardous and
Solid Waste  Amendments Act of 1984, as amended,  the Toxic  Substances  Control
Act, as amended,  the Hazardous Materials  Transportation  Act, as amended,  the
Natural Gas Pipeline  Safety Act of 1968, as amended,  the  Hazardous  Materials
Transportation  Act, as amended,  the Oil  Pollution  Act of 1990  ("OPA"),  the
Hazardous and Solid Waste Amendments Act of 1984, as amended, and any state laws
implementing  any of the  foregoing  laws,  any  state  laws  pertaining  to the
handling of oil and gas wastes or the use, maintenance,  and closure of pits and
impoundments.

     "Environmental Permits" shall have the meaning set forth in Section 4.08(b)
      ---------------------
hereof.


                                       26


<PAGE>


     "ERISA" means the United States Employee  Retirement Income Security Act of
      -----
1974, as amended, and the rules and regulations promulgated thereunder.

     "Estimated  Working Capital" means the consolidated  Working Capital of the
      --------------------------
Company  and its  Subsidiaries  determined  on the  basis of the best  estimates
available to Seller one Business Day prior to the Closing.

     "Excluded  Proceeding"  shall mean the  litigation  styled  Midgard  Energy
      --------------------                                       ---------------
Company f/k/a Maxus Exploration  Company v. Natural Gas Clearinghouse,  Transok,
- --------------------------------------------------------------------------------
Inc., and Transok Gas Gathering  Company,  filed in the 181st Judicial  District
- ----------------------------------------
Court of Potter County, Texas.

     "Forward  Price" has the meaning set forth in clause (c) of the  definition
      --------------
for "Forward Price" in the Storage Gas Purchase Agreement.

     "Governmental  Authority"  means any federal,  state or local  governmental
      -----------------------
agency or authority (other than a Court).

     "Greasy Creek Gas Inventory" shall mean the AWorking Gas@ as defined in the
      --------------------------
Storage Gas Purchase Agreement.

     "HSR Act" means the United States Hart-Scott-Rodino  Antitrust Improvements
      -------
Act of 1976, as amended, and the rules and regulations promulgated thereunder.

     "Indemnified Party" has the meaning specified in Section 9.03.
      -----------------
     "Indemnifying Party" has the meaning specified in Section 9.03.
      ------------------
     "Interest  Rate" means,  for any day, the sum of the Commercial  Paper Rate
      --------------
Margin and the Commercial Paper Rate for such day;  provided that if such day is
not a  Business  Day,  the  "Interest  Rate"  for  such  day  shall  be the rate
determined  as set forth  above for the next  preceding  Business  Day.  As used
herein,  "Commercial  Paper Rate"  means,  for any day, the rate for such day as
reported  for  one-month  nonfinancial  commercial  paper in the  daily  Federal
Reserve H.15 report or any  successor  Federal  Reserve  Report (as such rate is
made  available on the  Telerate,  Page 133),  provided  that if such rate shall
cease to be published,  the Commercial  Paper Rate shall be the rate of interest
then reported on any generally recognized  replacement page or service agreed to
by Purchaser and Seller.  As used herein,  "Commercial  Paper Rate Margin" means
0.03%.

     "IRS" means the United States Internal Revenue Service.
      ---
     "ISDA  Agreement"  has the meaning  specified in the  definition  of "Coral
      ---------------
Agreements" in this Section 1.01.


                                       27


<PAGE>


     "Judgments"  means any  judgments,  injunctions,  orders,  decrees,  writs,
      ---------
rulings or awards of any court or other judicial  authority or any governmental,
administrative or regulatory authority of competent jurisdiction.

     "Knowledge"  or  "knowledge"  means,  with  respect to Seller,  the Company
      ---------        ---------
Group, the Company and its Subsidiaries,  actual knowledge of the persons listed
on  Exhibit A , and with  respect  to the  Purchaser,  actual  knowledge  of the
    ---------
persons listed on Exhibit B; provided that none of the persons named in Exhibits
                  ---------                                             --------
A and B shall be deemed to have  performed,  or be  obligated  to  perform,  any
- -------
independent  investigation  or inquiry  with respect to the matter to which such
Knowledge relates.

     "Laws" means any federal, state, local or foreign law, statute,  ordinance,
      ----
rule, regulation, order or decree.

     "Liens" means all liens, mortgages, easements, charges, security interests,
      -----
options or other encumbrances.

     "Major Acquired Assets" has the meaning specified in Section 4.10.
      ---------------------
     "Major Contracts" has the meaning specified in Section 4.12.
      ---------------
     "Material  Adverse Effect" means a material adverse effect on the financial
      ------------------------
condition  or business of the  Company  and its  Subsidiaries,  taken as a whole
(other  than any event that is of general  application  to all or a  substantial
portion of the Company=s industry).

     "Material  Breach" means any facts or matters which constitute  breaches of
      ----------------
Seller's  covenants,  representations,  or  warranties  herein and for which the
aggregate  amount of the Damages  resulting from such breaches can be reasonably
expected to exceed $10,000,000.

     "Materials of Environmental  Concern" means any material  quantity of solid
      -----------------------------------
or hazardous waste, hazardous substance, pollutant,  contaminant, oil, petroleum
product,  natural  gas or  natural  gas  liquid,  commercial  product  or  other
substance  which is listed,  regulated  or  designated  as a toxic or  hazardous
waste,  substance,  or  material  (or words of similar  meaning  and  regulatory
effect), or with respect to which remedial obligations may be imposed, under any
Environmental Law.

     "Membership Interests" has the meaning specified in the recitals.
      --------------------
     "Necessary Contracts" has the meaning specified in Section 4.10.
      -------------------
     "Negative Balance" has the meaning specified in Section 2.07.
      ----------------


                                       28


<PAGE>


     "Order"  means any judgment,  order or decree of any Court or  Governmental
      -----
Authority.

     "Permits"  means all  permits,  authorizations,  approvals,  registrations,
      -------
licenses,  certificates  or variances  granted by or obtained  from any federal,
state, local or foreign governmental, administrative or regulatory authority.

     "Permitted  Liens"  means (i) Liens  created  by  Purchaser,  (ii) liens of
      ----------------
Governmental Authorities for or in respect of Taxes,  impositions,  assessments,
fees, water and sewer rents and other governmental charges levied or assessed or
imposed  which are not yet  delinquent  or are being  contested in good faith by
appropriate  proceedings,  (iii) the rights of lessors and lessees  under leases
executed in the ordinary  course of business,  (iv) the rights of licensors  and
licensees under licenses executed in the ordinary course of business, (v) Liens,
and rights to Liens, of mechanics, warehousemen,  carriers, repairmen and others
arising by operation  of law and  incurred in the  ordinary  course of business,
securing  obligations  not yet  delinquent  or being  contested in good faith by
appropriate proceedings, (vi) easements, leases, reservations or other rights of
others in, or minor defects and  irregularities  in title to, property or assets
of the Company or any of its subsidiaries; PROVIDED that such easements, leases,
reservations, rights, defects or irregularities do not materially impair the use
of such  property or assets for the purposes for which they are held;  and (vii)
Liens set forth on any schedule of the Disclosure Memorandum.

     "Person" means an individual, a corporation, a limited liability company, a
      ------
partnership, an association, a trust or other entity or organization,  including
a government or political subdivision or an agency or instrumentality thereof.

     "Positive Balance" has the meaning specified in Section 2.07.
      ----------------
     "Proceeding"   means   any   action,   suit,   demand,   claim  or   legal,
      ----------
administrative,  arbitration or other alternative dispute resolution proceeding,
hearing or investigation.

     "Purchase Price" has the meaning specified in Section 2.02.
      --------------
     "Purchase Price  Adjustment  Payment" has the meaning  specified in Section
      -----------------------------------
2.07.

     "Purchaser" has the meaning specified in the recitals.
      ---------
     "Purchaser Guarantor" means OGE Energy Corp.
      -------------------
     "Purchaser's Pension Plan" has the meaning specified in Section 6.06.
      ------------------------
     "Purchaser's Savings Plan" has the meaning specified in Section 6.06.
      ------------------------
     "Purchaser's Severance Plan" has the meaning specified in Section 6.06.
      --------------------------


                                       29


<PAGE>


     "Purchaser's Welfare Plans" has the meaning specified in Section 6.06.
      -------------------------
     "Required Consents" has the meaning specified in Section 3.04.
      -----------------
     "Securities Act" means the Securities Act of 1933, as amended.
      --------------
     "Seller" has the meaning specified in the recitals.
      ------
     "Seller Group" has the meaning specified in Section 4.15.
      ------------
     "Seller's Pension Plan" has the meaning specified in Section 6.06.
      ---------------------
     "Seller's Severance Plan" has the meaning specified in Section 6.06.
      -----------------------
     "Storage Gas Purchase  Agreement" means the Storage Gas Purchase  Agreement
      -------------------------------
dated May 14, 1999 between Tejas Gas  Marketing and Purchaser  pursuant to which
Purchaser will acquire the Greasy Creek Gas Inventory.

     "Storage  Gas  Purchase  Consideration"  has the meaning  specified  in the
      -------------------------------------
Storage Gas Purchase Agreement.

     "Subsidiary"  or  "Subsidiaries"  of  any  Person  means  any  corporation,
      ----------        ------------
partnership,  limited liability  company,  association,  trust, joint venture or
other entity or  organization  of which such Person,  either alone or through or
together with any other Subsidiary,  owns, directly or indirectly, more than 50%
of the  stock  or other  equity  interests,  the  holder  of which is  generally
entitled to vote for the election of the board of  directors or other  governing
body of such corporation,  partnership,  limited liability company, association,
trust, joint venture or other entity or organization.

     "Taxes"  means all taxes,  however  denominated,  including any interest or
      -----
penalties  that may become payable in respect  thereof,  imposed by any Federal,
state, local or foreign government or any agency or political subdivision of any
such government, which taxes shall include all net income, alternative or add-on
minimum tax, gross income,  gross receipts,  sales, use, goods and services,  ad
                                                                              --
valorem,  earnings,  franchise,  profits,  license,  withholding  (including all
- -------
obligations  to  withhold  or collect  for Taxes  imposed on  others),  payroll,
employment,  excise,  severance,  stamp, occupation,  premium,  property, excess
profit  or  windfall  profit  tax,  custom  duty,  value  added  or  other  tax,
governmental  fee or other  like  assessment  or charge of any kind  whatsoever,
together with any interest and any penalty, addition to tax or additional amount
(whether payable directly, by withholding or otherwise).


                                       30


<PAGE>


     "Tax  Returns"  means  any  report,  return,  declaration  or other  filing
      ------------
required to be supplied to any taxing authority or jurisdiction  with respect to
Taxes including any amendments thereto.

     "Tax Statute of  Limitations  Date" means the close of business on the 30th
      ---------------------------------
day after the expiration of the applicable  statute of limitations  with respect
to Taxes, including any tollings or extensions thereof.

     "Tejas Gas Marketing"  means Tejas Gas Marketing,  LLC, a Delaware  limited
      -------------------
liability company.

     "Third Party Claim" has the meaning specified in Section 9.03(a).
      -----------------
     "Transok  Swap  Transaction"  means that certain swap  transaction  between
      --------------------------
Tejas  Energy,  LLC and  Transok,  LLC  under  the ISDA  Agreement,  having  the
following  terms:  (i) Tejas  Energy,  LLC is the fixed price payer,  with fixed
price for Calculation Period One and Calculation Period Two equal to the Forward
Price (as defined in the Storage Gas Purchase  Agreement)  for each such period;
(ii) Transok,  LLC is the floating price payer, with floating price equal to the
Panhandle  Eastern  Pipe Line - Texas,  Oklahoma  (main  line)  Index  Price for
delivery  during the  applicable  Calculation  Period in the "Prices of Spot Gas
Delivered to Pipelines"  Section located in the first issue of Inside FERC's Gas
Market  Report  published  during  the  applicable   Calculation  Period;  (iii)
Calculation  Period One is the month  described  in variable  "C" of the pricing
formula  set forth in  Section 3 of the  Storage  Gas  Purchase  Agreement,  and
Calculation  Period Two is the month  described  in variable  "E" of the pricing
formula  set forth in Section 3 of the  Storage  Gas  Purchase  Agreement;  (iv)
notional  quantity  for  Calculation  Period One is equal to  two-thirds  of the
Working  Gas  (as  defined  in the  Storage  Gas  Purchase  Agreement),  and for
Calculation Period Two is equal to one-third of the Working Gas; and (v) payment
date shall be on the fifth  Business  Day after  determination  of the  floating
price for each Calculation Period.

     "United  States" means the United States of America,  its  territories  and
      --------------
possessions, any state of the United States, and the District of Columbia.

     "Working  Capital"  means  Current  Assets plus the  Storage  Gas  Purchase
      ----------------
Consideration minus Current Liabilities.

     I.2  Construction and  Interpretation.  The following rules of construction
          --------------------------------
and interpretation shall apply to this Agreement,  unless elsewhere specifically
indicated to the contrary:

          (1) all terms defined herein in the singular shall include the plural,
as the context requires, and vice-versa;


                                       31


<PAGE>


          (2) pronouns  stated in the neuter gender shall include the masculine,
the feminine and the neuter genders;

          (3) the term  "including"  (or any form thereof) shall not be limiting
or exclusive and shall be deemed to mean "including, without limitation";

          (4) all references to this Agreement shall include any  modifications,
amendments or supplements hereto;

          (5) unless otherwise  indicated,  any reference made in this Agreement
to a section is a reference to a section of this  Agreement,  any  reference  to
an exhibit is a  reference  to an  exhibit to this  Agreement, and any reference
to a schedule  is a reference  to a schedule  of the  Disclosure Memorandum; and

          (6) the phrase the "Company and its  Subsidiaries" or the "Company and
the Company's  Subsidiaries"  means the Company and its  Subsidiaries  listed in
in Schedule 4.02(b).
   ----------------


                                   ARTICLE II
                                PURCHASE AND SALE
                                -----------------

          II.1  Purchase and Sale of  Membership  Interests.  Upon the terms and
                -------------------------------------------
subject to the conditions of this Agreement,  at the Closing, Seller shall sell,
transfer, convey, assign and deliver to Purchaser, and Purchaser shall purchase,
acquire and accept from  Seller,  all of Seller's  right,  title and interest in
and to the Membership Interests of the Company.

          II.2  Purchase Price.  Upon the  terms and  subject  to the conditions
                --------------
of this Agreement, Purchaser will  deliver or  cause to be  delivered to  Seller
at the Closing, as  payment  for  the   aforesaid  sale, conveyance, assignment,
transfer   and  delivery   of the  Membership   Interests,  same-day   funds  by
wire  transfer in the total amount of (a)  $______________,  minus the amount of
the  Storage  Gas  Purchase  Consideration  and (b) plus the amount by which the
Estimated  Working Capital exceeds zero dollars or minus the amount by which the
Estimated  Working  Capital is less than zero  dollars  (such  price as adjusted
pursuant  to Section  2.07 the  "Purchase  Price").  Contemporaneously  with the
execution and delivery  hereof,  Purchaser has deposited the sum of  $25,000,000
with Seller as a deposit  hereunder (the  "Deposit"),  to be held by Seller and,
upon the  Closing,  the amount of the  Deposit  together  with  interest  at the
Interest  Rate  shall  be  credited   toward  the  Purchase   Price.   Purchaser
acknowledges  and  agrees  that the  Deposit  will  not be held in a  segregated
deposit  account or in an escrow  account,  but rather will be held by Seller in
one or more of its general operating accounts.


                                       32


<PAGE>


          II.3   The  Closing.    Unless   otherwise   mutually    agreed,   the
                 ------------
Closing,  which shall be  effective  as of 9:00 a.m. of the day of the  Closing,
will take place at 9:00 a.m.,  Houston  time,  at the offices of Mayer,  Brown &
Platt, 700 Louisiana St., Houston, Texas 77002. The "Closing Date" shall be such
Business  Day  (within 15  Business  Days after  satisfaction  of the  condition
precedent  set forth in Section 7.01) as may be selected by Seller upon at least
five Business Days' notice to Purchaser.

          II.4   Deliveries.   At the  Closing (a)  the Seller  will  deliver or
                 ----------
cause to be  delivered to  Purchaser  an  assignment,  in the form of Exhibit C,
                                                                      ---------
representing the sale, conveyance, assignment and transfer of all the Membership
Interests of the Company and (b) the Purchaser  shall pay to Seller the Purchase
Price  for the  Membership  Interests  sold by  Seller in same day funds by wire
transfer to an account  specified by Seller in writing to Purchaser at least two
Business Days prior to the Closing.

          II.5    Allocation    of   Purchase    Price.      The    transactions
                  ------------------------------------
contemplated by this Agreement shall be treated as a purchase and sale of all of
the assets of the Company and its  Subsidiaries for federal income tax purposes,
and the  Purchase  Price  (including  for  this  purpose  any  debt  assumed  in
connection  with the  purchase)  shall be  allocated  among  such  assets of the
Company and its Subsidiaries as set forth on Exhibit D subject to the following:
                                             ---------

               (1) such  allocation of the Purchase Price shall be in accordance
          with Section 1060 of the Code; and

               (2)  Purchaser and Seller shall treat and report in filings under
          the Code the  transactions  contemplated by this Agreement in a manner
          consistent with one another.

          II.6  Sale  of  Greasy  Creek Gas  Inventory.    Purchaser  and  Tejas
                --------------------------------------
Gas Marketing have executed the Storage Gas Purchase Agreement pursuant to which
Purchaser separately will acquire the Greasy Creek Gas Inventory,  and Purchaser
will deliver,  or cause to be delivered,  to Tejas Gas Marketing the Storage Gas
Purchase Consideration in same day funds by wire transfer.

          II.7   Post-Closing  Adjustments.    As  promptly as  practical  after
                 -------------------------
the Closing, the Seller shall deliver to the Purchaser the Closing Balance Sheet
prepared in accordance with generally  accepted  accounting  principles and in a
manner consistent with Seller's past practices.  The Closing Balance Sheet shall
set forth in  reasonable  detail all items  necessary to  determine  the Working
Capital of the Company and its Subsidiaries as of the Closing Date (the "Closing
Date  Working  Capital").  The Closing  Date  Working  Capital  will include the
receivables and payables  relating to any gas imbalances as of the Closing Date.
The Purchase  Price defined in Section 2.02 shall be adjusted  dollar-for-dollar
based on the Closing  Date  Working  Capital  set forth on the  Closing  Balance
Sheet,  if such  Closing  Date  Working  Capital  shall not equal the  Estimated
Working Capital, as follows: (i) to the extent such Closing Date Working Capital
exceeds the Estimated  Working Capital (a "Positive  Balance"),  Purchaser shall
make a payment


                                       33


<PAGE>


in  immediately  available  funds by wire  transfer to an account  designated by
Seller in an amount equal to such Positive  Balance,  or (ii) to the extent such
Closing  Date  Working  Capital is less than the  Estimated  Working  Capital (a
"Negative Balance"),  Seller shall make a payment in immediately available funds
by wire  transfer to an account  designated  by  Purchaser in an amount equal to
such  Negative  Balance (the payment of either a Positive  Balance or a Negative
Balance each being called a "Purchase Price Adjustment Payment").

          Not  later   than   ten  (10)  Business   Days  after  receiving   the
Closing  Balance Sheet,  Purchaser  shall notify Seller in writing in reasonable
detail as to all exceptions or disagreements, if any, regarding the Closing Date
Working   Capital  (any  such   exception   or   disagreement   individually   a
"Disagreement"  and  collectively  "Disagreements").   In  the  event  that  the
Purchaser shall so notify the Seller of one or more Disagreements, the Purchaser
and Seller shall endeavor in good faith to resolve such Disagreements; provided,
                                                                       --------
that if  Purchaser  and Seller are unable to resolve  all  Disagreements  within
twenty (20)  Business  Days after  receipt by Purchaser  of the Closing  Balance
Sheet,  either  Purchaser or Seller may, without the consent of the other party,
refer all remaining  Disagreements  to the managing partner of the Dallas branch
of Deloitte & Touche, L.L.P., for resolution of all such remaining Disagreements
in accordance with generally accepted  accounting  principles,  which resolution
shall be delivered in writing to Purchaser and Seller  within  fifteen (15) days
of  submission  of any such  Disagreements  and shall  set  forth  his  decision
regarding  each point of  Disagreement  (the  "Deloitte  Report").  The Deloitte
Report, if any, shall be binding on both Purchaser and Seller.

          Purchaser   and   Seller   agree   to   make   any   Purchase    Price
Adjustment  Payment  as set forth  above as  follows:  (i) in the event that the
Purchaser shall not have notified the Seller of a  Disagreement,  within fifteen
(15)  Business  Days of the date on which the  Purchaser  received  the  Closing
Balance Sheet,  or (ii) in the event that the Purchaser  shall have notified the
Seller of one or more  Disagreements,  (A) within five (5) Business  Days of the
date on which the Purchaser and Seller shall resolve each  Disagreement,  and/or
(B) within five (5) Business Days of receipt of the Deloitte Report, if any.


                                   ARTICLE III
                  REPRESENTATIONS AND WARRANTIES OF THE SELLER
                  --------------------------------------------
                                AS TO THE SELLER
                                ----------------

          Except   as   disclosed    in   the    disclosure    memorandum   (the
"Disclosure  Memorandum")  delivered at or prior to the date of this  Agreement,
Seller  represents and warrants to Purchaser  that the following  statements are
true and correct in all respects as of the date of this Agreement:

          III.1   Organization.    The Seller  is  a  limited  liability company
                  ------------
duly  organized,  validly  existing and in good  standing  under the Laws of the
State of Delaware, with all requisite power and authority to own the Company and
its  Subsidiaries  (each of which is listed in


                                       34


<PAGE>


Schedule 3.01 of the Disclosure  Memorandum)  and to carry on its business as it
- -------------
is now conducted.

          III.2   Ownership  of  Membership  Interests.    Seller  is the owner,
                  ------------------------------------
beneficially and of record, of all the Membership  Interests in the Company free
and  clear of any  Lien.  At the  Closing,  Seller  will  transfer  title to all
Membership Interests to Purchaser free and clear of any Lien.

          III.3    Validity  and  Enforceability.    Seller  has  the  requisite
                   -----------------------------
power and  authority  to execute and deliver this  Agreement  and to perform its
obligations  under this Agreement.  The execution and delivery of this Agreement
and the  consummation  of the  transactions  contemplated  hereby have been duly
authorized by Seller,  and no additional  authorization on the part of Seller is
necessary in order to authorize this  Agreement or consummate  the  transactions
contemplated  hereby.  This  Agreement  has been duly  executed and delivered by
Seller and, assuming due  authorization and execution by Purchaser,  constitutes
the legal, valid and binding obligation of Seller, enforceable against Seller in
accordance  with its  terms,  except as such  enforceability  may be  limited by
bankruptcy, insolvency,  reorganization,  moratorium and similar laws of general
application relating to or affecting the rights and remedies of creditors, or by
general  principles  of equity  (regardless  of whether such  enforceability  is
considered in a proceeding in equity or at law),  including the  availability of
specific performance.

          III.4    Approvals.    Except  for  the  requirements  (a)  listed  in
                   ---------
Schedule 3.04 of the Disclosure Memorandum (the "Required Consents"), (b) of the
- -------------
HSR Act and (c) of those Laws,  noncompliance with which could not reasonably be
expected  to have a  material  adverse  effect on the  ability  of the Seller to
perform  its  obligations  under this  Agreement  or to have a Material  Adverse
Effect on the Company, no filing or registration with, no waiting period imposed
by and no Permit or Order of, any  Governmental  Authority is required under any
Law applicable to the Seller or the Company or any of its Subsidiaries to permit
the Seller to  execute,  deliver or perform  this  Agreement  or any  instrument
required hereby to be executed and delivered by it at the Closing.

          III.5    No  Violation.    Assuming   the  receipt  of  all   Required
                   -------------
Consents,   and  the  effectuation  of  all  filings  and  registrations   with,
termination  or  expiration of any  applicable  waiting  periods  imposed by and
receipt of all  Permits and Orders of,  Governmental  Authorities  indicated  as
required in Section  3.04,  neither the  execution and delivery by the Seller of
this Agreement or any instrument required hereby to be executed and delivered by
it at the Closing nor the performance by the Seller of its obligations hereunder
or  thereunder  will violate or breach the terms of or cause a default under (i)
any Law applicable to the Seller, (ii) the certificate of formation, the limited
liability company agreement or other organizational  documents of the Seller, or
(iii) any contract or  agreement to which the Seller or any of its  Subsidiaries
(other than the Company and its  Subsidiaries)  is a party or by which it or any
of its  properties  or assets is bound,  except in any such case for any matters
described  in this  Section  that would not


                                       35


<PAGE>


reasonably be expected to have a Material Adverse Effect upon the ability of the
Seller to perform its obligations under this Agreement.

          III.6   Litigation.   There are  no  Proceedings  pending, or, to  the
                  ----------
Knowledge of the Seller, threatened, against the Seller, at law or in equity, in
any Court or before or by any  Governmental  Authority that could  reasonably be
expected to have a Material Adverse Effect on the validity or  enforceability of
this  Agreement  or the ability of the Seller to perform its  obligations  under
this Agreement.

          III.7   Brokerage Agreements.   Neither  the  Seller nor  the  Company
                  --------------------
or any of the Company's  Subsidiaries has, directly or indirectly,  entered into
any  agreement  with any Person  that would  obligate  the  Company,  any of its
Subsidiaries or the Purchaser to pay any commission,  brokerage fee or "finder=s
fee" in connection with the transactions contemplated herein.


                                   ARTICLE IV
                  REPRESENTATIONS AND WARRANTIES OF THE SELLER
                  --------------------------------------------
                                AS TO THE COMPANY
                                -----------------

          The   Purchaser   acknowledges   that,  prior  to  the  execution   of
this Agreement, it has been afforded the opportunity to inspect the business and
properties  of the  Company  and to examine  the  records of the  Company at its
offices,  and has been  afforded  access  to all  information  in the  Company's
possession requested by the Purchaser.  THE PURCHASER FURTHER ACKNOWLEDGES THAT,
EXCEPT AS EXPRESSLY  PROVIDED IN ARTICLE III OR THIS ARTICLE IV, THE SELLER, ITS
OFFICERS, DIRECTORS, EMPLOYEES, REPRESENTATIVES AND AGENTS HAVE MADE NO, AND THE
SELLER HEREBY EXPRESSLY  DISCLAIMS ANY,  REPRESENTATIONS OR WARRANTIES AS TO THE
ACCURACY OR COMPLETENESS OF SUCH INFORMATION,  AS TO TITLE OF THE COMPANY OR ANY
OF ITS SUBSIDIARIES TO ANY ASSETS, OR AS TO ANY OTHER INFORMATION, DATA OR OTHER
MATERIALS (WRITTEN OR ORAL) FURNISHED TO THE PURCHASER OR ITS REPRESENTATIVES OR
AGENTS BY OR ON BEHALF OF THE SELLER.

          Except  as  disclosed  in  the  Disclosure   Memorandum,  the   Seller
represents and warrants to the Purchaser as to the Company and its  Subsidiaries
that:

          IV.1   Organization.   Each of the  Company  and its  Subsidiaries  is
                 ------------
duly  organized,  validly  existing and in good  standing  under the laws of the
jurisdiction  of its  organization  and has all requisite power and authority to
carry on its business as it is now being conducted and to own, lease and operate
its  properties  where now  conducted,  owned,  leased or operated.  Each of the
Company and its Subsidiaries is duly licensed or qualified to do business and is
in good standing in each  jurisdiction  where such license or  qualification  is
required to


                                       36


<PAGE>


carry on its  business  as now  conducted,  except  where the  failure  to be so
qualified or licensed or in good standing, as the case may be, is not reasonably
expected to have, individually or in the aggregate, a Material Adverse Effect.

          IV.2   Capitalization.
                 --------------
               (1) All of the  Membership  Interests  of the  Company  are  held
          beneficially  and of  record  by the  Seller.  All of the  issued  and
          outstanding  Membership  Interests  have been duly  authorized and are
          validly  granted.  There are no  outstanding  or  authorized  options,
          warrants,  purchase rights,  subscription  rights,  conversion rights,
          exchange  rights,  or other contracts or commitments,  other than this
          Agreement, that could require the Company to issue, sell, or otherwise
          cause to become outstanding any of its Membership Interests. Except as
          set forth on Schedule 4.02(a) of the Disclosure Memorandum,  there are
                       ----------------
          no outstanding or authorized stock appreciation, phantom stock, profit
          participation, or similar rights with respect to the Company.

               (2) Schedule  4.02(b) of the Disclosure  Memorandum  sets forth a
                   -----------------
          complete list, as of the date hereof,  of all of the  Subsidiaries  of
          the Company,  the  jurisdiction of  incorporation or formation of each
          such  Subsidiary  and the number of issued and  outstanding  shares of
          capital  stock or, as the case may be,  membership  interests  of each
          such Subsidiary and the record holders thereof. Except as set forth on
          Schedule 4.02(b) of the Disclosure Memorandum,  all of the outstanding
          ----------------
          shares of capital stock or membership interests are owned beneficially
          and of record by the Company or the Company's  Subsidiaries,  free and
          clear of all Liens,  and no capital stock or  membership  interests of
          any of the  Company's  Subsidiaries  is or may become  required  to be
          issued by reason of options,  warrants,  rights to subscribe to, calls
          or commitments of any character  whatsoever relating to, or securities
          or rights  convertible into or exchangeable or exercisable for, shares
          of capital  stock or  membership  interests of its  Subsidiaries  and,
          other than as contemplated by this Agreement,  there are no contracts,
          commitments,  understandings  or  arrangements by which the Company or
          any of its Subsidiaries is or may be bound to issue, redeem,  purchase
          or sell shares of capital stock or membership  interests or securities
          convertible  into or  exchangeable  for any such shares or  membership
          interests.

          IV.3   No  Violation.   Except  for the  Required   Consents  and  the
                 -------------
requirements of the HSR Act, neither the execution and delivery by the Seller of
this Agreement or any instrument required hereby to be executed and delivered by
it at the Closing nor the performance by the Seller of its obligations hereunder
or  thereunder  will (a) violate or breach the terms of or cause a default under
(i) any Law  applicable  to the  Company  or any of its  Subsidiaries,  (ii) the
certificate of organization,  the limited  liability  company agreement or other
organizational  documents of the Company or any of its Subsidiaries or (iii) any
contract or agreement to which


                                       37
<PAGE>


the  Company  or any of its  Subsidiaries  is a party or by which they or any of
their  properties or assets are bound,  (b) result in the creation or imposition
of any Lien,  other than any Permitted Liens, on any of the properties or assets
of the Company or any of its  Subsidiaries,  or (c) result in the  cancellation,
forfeiture,  revocation,  suspension or adverse modification of any Permit owned
or held by the Company or any of its  Subsidiaries,  except in any such case for
any matters  described in this Section that could not  reasonably be expected to
have a Material Adverse Effect.

          IV.4   Litigation.
                 -----------

               (1)  Except  as set  forth  on  Schedule  4.04 of the  Disclosure
                                               --------------
          Memorandum,  there are no Proceedings  pending or, to the Knowledge of
          Seller, threatened, involving the Company or any of its Subsidiaries.

               (2) To  Seller's  Knowledge,  neither  the Company nor any of its
          Subsidiaries  is the  subject of any  Judgment  other than those which
          have been settled,  discharged or accrued on the financial  statements
          of the Company, those which are covered by insurance,  or those which,
          individually or in the aggregate,  would not reasonably be expected to
          result in a Material  Adverse  Effect or  materially  impair  Seller's
          ability to effect the Closing.

          IV.5    Compliance  With  Applicable Law.    Except  as set  forth  on
                  --------------------------------
Schedule 4.05 of the Disclosure Memorandum,  to the Knowledge of Seller, each of
- -------------
the Company and its Subsidiaries is presently complying in all material respects
with all applicable Laws and Judgments.

          IV.6   Permits.   To the  Knowledge  of  Seller,  except as set  forth
                 -------
on  Schedule  4.06 of the  Disclosure  Memorandum,  the  Company and each of its
    --------------
Subsidiaries  have all material  Permits  required to conduct  their  respective
business as  currently  conducted  and the Company and each of the  Subsidiaries
have been  operating  their  respective  businesses  pursuant to and in material
compliance  with the terms of all such Permits.  Except as set forth on Schedule
                                                                        --------
4.06 of the  Disclosure  Memorandum,  such  Permits  held by the Company and its
- ----
Subsidiaries  are valid and in full  force and  effect  and none of the  Permits
which are material to business  operations  will,  assuming the related Required
Consents have been obtained,  be terminated or become  terminable as a result of
the transactions contemplated by this Agreement.

          IV.7   Taxes.    Except  as  set  forth   on  Schedule  4.07  of   the
                 ------                                 --------------
Disclosure Memorandum,  all Tax Returns of the Company and its Subsidiaries that
are  required to be filed  (taking into  account any  extensions  of time within
which  to file)  before  the  Closing  Date,  have  been or will be  filed,  the
information  provided  in such Tax  Returns  is  complete  and  accurate  in all
material respects,  and all Taxes shown to be due and payable by the Company and
its  Subsidiaries  on such Tax  Returns  have been or will be paid in full.  The
Company  and each of the  Company's  Subsidiaries  (other  than  Transok  Energy
Company) are currently  disregarded as


                                       38


<PAGE>


entities  separate from their respective  owners for federal income tax purposes
under Treasury Regulation  301.7701 3(b)(1). There are no tax sharing agreements
in effect applicable to the Company and its Subsidiaries.

          IV.8 Environmental Compliance. Except as disclosed on Schedule 4.08 of
               ------------------------                         -------------
the  Disclosure  Memorandum  and subject  to the provisions  of Section 6.05, to
the Knowledge of the Seller:

               (1) The  Company  and each of the  Company's  Subsidiaries  is in
          material  compliance with all Environmental  Laws (including,  without
          limitation, all monitoring,  reporting and record keeping requirements
          thereunder)   in  connection   with  the  conduct,   ownership,   use,
          maintenance and operation of its business or assets;

               (2) The Company and each of the Company's  Subsidiaries has given
          all material  notices and obtained  all  material  permits,  licenses,
          registrations,   authorizations,  approvals  and  approved  exemptions
          required  by  Environmental  Laws  ("Environmental  Permits")  for the
          conduct, ownership, use, maintenance and operation of its business and
          assets,  and the Company and each of the Company's  Subsidiaries is in
          compliance   with  all   material   terms  and   conditions   of  such
          Environmental Permits;

               (3) There are no  pending  lawsuits,  administrative  actions  or
          proceedings,   orders,  decrees,  consent  agreements  or  notices  of
          violation related to Environmental Laws by any governmental  agency or
          any  third  person  against  the  Company  or  any  of  the  Company's
          Subsidiaries  with  respect  to its  present  or former  assets or the
          business  or  operations  of the  Company  or  any  of  the  Company's
          Subsidiaries,  nor to the  knowledge  of  Seller  is any  such  action
          threatened;

               (4) No material  quantity of Materials of  Environmental  Concern
          have been used, generated, manufactured, stored, treated, disposed of,
          land filled,  transported or in any other way released (and no release
          is threatened),  on, under,  to, or from any of the property where the
          business or assets of the Company or any of the Company's Subsidiaries
          have been operated or located,  in material violation of Environmental
          Laws,  or in such amounts or quantities  that would require  notice to
          applicable governmental authorities or remediation under Environmental
          Laws;

               (5) Neither the Company nor any of the Company's Subsidiaries has
          been named as a potentially  responsible party ("PRP") under, and none
          of the  property  owned or leased by the  Company or its  Subsidiaries
          where the assets or business  of the  Company or any of the  Company's
          Subsidiaries   has  been  located  or  operated  has  been  nominated,
          identified,  or proposed for listing as a facility


                                       39


<PAGE>


          which is subject to remedial or  enforcement  investigation,  material
          remediation,  or any material existing or known potential claim under,
          Environmental Laws (including, without limitation, listing as a PRP or
          facility  on  the  National   Priorities  List  or  the  Comprehensive
          Environmental Response,  Compensation and Liability Information System
          maintained  by the  Environmental  Protection  Agency or any analogous
          state list of sites requiring investigation or remediation),  and none
          of such  assets,  or  property  is subject to any lien  arising  under
          Environmental Laws;

               (6) None of the off-site locations where any material quantity of
          Materials  of  Environmental  Concern  related to any of the assets or
          business of the Company or any of the Company's Subsidiaries have been
          stored,  treated,  transferred,  recycled,  disposed of or released is
          subject to an  existing  or  potential  claim or  remedial  or removal
          action  under  Environmental  Laws  (including,   without  limitation,
          listing as a PRP or facility on the  National  Priorities  List or the
          Comprehensive  Environmental  Response,   Compensation  and  Liability
          Information  System maintained by the Environmental  Protection Agency
          or any  analogous  state  list of  sites  requiring  investigation  or
          remediation).   Neither  the   Company   nor  any  of  the   Company's
          Subsidiaries  has been named as a PRP under,  and none of the off-site
          locations has been nominated, identified, or proposed for listing as a
          facility  which is subject to remedial or  enforcement  investigation,
          material remediation or any material claim under,  Environmental Laws,
          and none of such  off-site  locations  is subject to any lien  arising
          under Environmental Laws; and

               (7) Without in any manner  limiting the generality of (a) through
          (f) above:

                    (1)  to  the  Knowledge  of  Seller,  the  Company  and  the
               Company's Subsidiaries,  there are no underground or above ground
               storage  tanks,   material   quantities  of   asbestos-containing
               materials,   hazardous  waste  treatment,   storage  or  disposal
               facilities  or solid waste  management  units  (identified  under
               RCRA)  present on any property  owned or leased by the Company or
               its Subsidiaries where the business or assets of the Company have
               been operated or located;

                    (2) there are no material  obligations or  liabilities  with
               respect  to  assets  or  businesses  sold by the  Company  or its
               Subsidiaries between June 6, 1996, and the Closing arising out of
               or  relating  to  Environmental  Laws  which the  Company  or the
               Company's  Subsidiaries  has agreed to,  assumed or retained,  by
               contract or otherwise (except by operation of Law); and


                                       40


<PAGE>


                    (3)  no  material  quantity  of  polychlorinated   biphenyls
               ("PCBs"),   substances   containing   PCBs,   or   PCB-containing
               electrical  equipment  owned  or  leased  by the  Company  or its
               Subsidiaries  is present on any  property  owned or leased by the
               Company or its  Subsidiaries  where the business or assets of the
               Company or the Company's Subsidiaries are, or have been, operated
               or located.

          IV.9   Disclaimer of  other  Representations and  Warranties.   Except
                 -----------------------------------------------------
as  expressly  set  forth in  Article III  and this  Article  IV,  SELLER  MAKES
NO  REPRESENTATION  OR  WARRANTY,  EXPRESS OR IMPLIED,  AT LAW OR IN EQUITY,  IN
RESPECT OF THE COMPANY,  ITS  SUBSIDIARIES,  OR ANY OF THEIR RESPECTIVE  ASSETS,
LIABILITIES  OR  OPERATIONS,  INCLUDING,  WITHOUT  LIMITATION,  WITH  RESPECT TO
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR  PURPOSE, OR ANY REPRESENTATION OR
WARRANTIES WITH RESPECT TO THE DESIGN, QUALITY, DURABILITY,  VALUE, OR CONDITION
OR SUITABILITY OF SUCH ASSETS OR THE PRESENCE, ABSENCE OR CONDITION OF HAZARDOUS
SUBSTANCES   OR  POLLUTANTS   IN,  ON  OR  UNDER  SUCH  ASSETS,   AND  ANY  SUCH
REPRESENTATIONS OR WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED.  PURCHASER HEREBY
ACKNOWLEDGES  AND AGREES THAT,  EXCEPT TO THE EXTENT  SPECIFICALLY  SET FORTH IN
ARTICLE III AND THIS ARTICLE IV, THE PURCHASER IS PURCHASING THE COMPANY AND ITS
SUBSIDIARIES ON AN "AS-IS, WHERE-IS" BASIS.

          IV.10    Major  Acquired   Assets.    The  Company  and  each  of  the
                   ------------------------
Company's  Subsidiaries  own,  lease,  or  otherwise  hold  such  title to their
respective  assets as is  necessary  to conduct its business in the manner it is
currently being  conducted.  The assets listed on Schedule 4.10 ("Major Acquired
                                                  -------------
Assets") are in good and  serviceable  condition,  normal wear and tear excepted
and suitable for their current uses. The Company and the Company's  Subsidiaries
have,  and at the Closing  shall have,  good and  marketable  title to the Major
Acquired Assets free and clear of any Liens,  except for Permitted Liens. Except
as set  forth  in  Schedule  4.10  of the  Disclosure  Memorandum,  to  Seller's
                   --------------
Knowledge  all  rights  of way,  leases  or  easements  of the  Company  and its
Subsidiaries  ("Necessary  Contracts")  are valid and  binding  upon each  party
thereto  and are in full  force and effect  according  to their  terms,  and all
amendments,  modifications or supplements  thereto are contained in the files of
the Company or the Company's  Subsidiaries  and neither Seller,  the Company nor
the  Company's  Subsidiaries  has  received  any  notice of the  termination  or
cancellation of any Necessary Contract.  Except as set forth in Schedule 4.10 of
                                                                -------------
the Disclosure Memorandum,  there is, to Seller's Knowledge, no default or claim
of default under any Necessary  Contract,  and no event has occurred which, with
the  passage  of time or the  giving of notice (or  both),  would  constitute  a
default by Seller, Company or any of the Company's Subsidiaries,  under any such
document  or  instrument,   or  would  permit   modification,   acceleration  or
termination of any such document or instrument, or result in the creation of any
Lien (or  accelerate  the  performance  of any  obligation of the Company or the
Company's  Subsidiaries  secured  by such  Lien)  on any of the  Major  Acquired
Assets,  other than


                                       41


<PAGE>


Permitted Liens. To Seller's Knowledge, the pipeline is on the lands or premises
covered by the Necessary  Contracts  and,  except as disclosed on Schedule 4.10,
                                                                  -------------
there are no material spatial gaps in the rights-of-way or easements  underlying
the  Company's  and its  Subsidiaries'  pipelines,  except  gathering  lines  on
producer leaseholds and connections on customers' facilities.

          IV.11    Subsidiaries.   The Company is  the owner,  beneficially  and
                   ------------
of record,  of all the equity  interest  of those  business  entities  listed on
Schedule  4.02(b)  free and clear of any Lien.  Except as set forth in  Schedule
- -----------------                                                       --------
4.11 of the  Disclosure  Memorandum,  the  Company  does  not own,  directly  or
- ----
indirectly, any capital stock or equity interest in any other Person.

          IV.12    Major  Contracts.   With  respect  to  the  Company  and  the
                   ----------------
Company's  Subsidiaries,  (a) the 20 largest purchase and/or sale of natural gas
contracts by volume, (b) the 20 largest  transportation of natural gas contracts
by maximum daily quantity  obligation,  (c) the 20 largest  gathering of natural
gas  contracts by maximum  daily  quantity  obligation  (d) the  compression  of
natural gas  contracts,  if any, for the  customers  listed in items (b) and (c)
above,  (e) the 20 largest natural gas processing  contracts by maximum quantity
obligation,  (f) all of the leases of capacity to third  parties in the pipeline
systems of the Company and its  Subsidiaries,  (g) all of the leases of capacity
to Company or its Subsidiaries in the pipeline systems of third parties, and (h)
all of the contracts that require the payment by the Company or its Subsidiaries
of an amount of $200,000 or more during a three month period or $500,000 or more
during any year,  except for any  contracts  in (a)  through (h) above which are
terminable by the Company  without any payment  obligation  upon 60 days or less
notice, are set forth on Schedule 4.12 ("Major Contracts").  To the Knowledge of
                         -------------
Seller,  each of the Major  Contracts is in full force and effect in  accordance
with all amendments,  modifications,  or supplements thereto as contained in the
files of the  Company or the  Company's  Subsidiaries  and neither  Seller,  the
Company or the Company's Subsidiaries has received any notice of the termination
or cancellation of any of the Major  Contracts.  Except as disclosed in Schedule
                                                                        --------
4.12 of the  Disclosure  Memorandum,  neither  the  Company,  nor the  Company's
- ----
Subsidiaries, nor, to the Knowledge of the Seller, any other party is in default
under or in breach of, and no event has  occurred  that with  notice or lapse of
time or both  would  constitute  a  default  under  or  breach  of,  the  terms,
conditions or provisions of any Major Contract.  Except as set forth on Schedule
                                                                        --------
4.12 of the Disclosure Memorandum,  there is, to Seller's Knowledge,  no default
- ----
or claim of default  under any Major  Contract and no event has occurred  which,
with the passage of time or the giving of notice (or both),  would  constitute a
default by Seller, the Company or, any of the Company's  Subsidiaries,  or which
would  permit  the  modification,  acceleration  or  termination  of  any  Major
Contract.

          IV.13   Financial  Statements.  Seller  has  delivered  to   Purchaser
                  ---------------------
copies of (i) the unaudited  balance sheet of the Company and each Subsidiary as
of March 31, 1999 and the unaudited  balance sheet of the Company as of December
31,  1998,  including a detailed  statement  of  estimated  Working  Capital and
inventory  including  the method of valuation of such  inventory,  (the "Company
Balance  Sheets") and (ii) the unaudited  statement of income of the Company for
the three months ended March 31, 1999 and for the year ended  December 31, 1998.
The Seller


                                       42


<PAGE>


will deliver,  as soon as  practicable  after the Closing,  the Closing  Balance
Sheet. The financial  statements  described herein,  including the notes thereto
delivered   therewith,   are  herein  referred  to  as  the  "Company  Financial
Statements." The Company Financial Statements have been prepared, or in the case
of the Closing  Balance  Sheet will be prepared,  in accordance  with  generally
accepted accounting  principles  consistently applied (except for year end audit
adjustments and requirements  for notes) and fairly present,  or with respect to
the Closing  Balance  Sheet will fairly  present,  the  financial  position  and
results  of  operation  of the  Company  as of the dates  indicated  and for the
periods then ended.

          IV.14    Absence  of   Certain  Changes.    Except  as  disclosed   to
                   ------------------------------
Purchaser in the  Disclosure  Memorandum  or the Company  Financial  Statements,
since the date of the latest  balance  sheet  included in the Company  Financial
Statements, there has not been:

               (1) any change which would have a Material  Adverse Effect on the
          business, properties,  financial condition or results of operations of
          the Company or any of the Company's Subsidiaries taken as a whole;

               (2) any  material  change by the Company or any of the  Company's
          Subsidiaries  in  accounting  methods  or  principles  which  would be
          required  to  be  disclosed   under  generally   accepted   accounting
          principles;

               (3) any  declaration  or payment of any dividend on, or any other
          distribution  with respect to, the equity securities of the Company or
          any of the Company's  Subsidiaries;  provided,  however,  that nothing
                                               --------   -------
          herein  shall  be  construed  to  prohibit  the  payment  of any  cash
          dividends to Seller prior to the date of the Closing Balance Sheet, or
          the repayment of debt, equal to all the cash or cash equivalents in or
          generated by the Company and its Subsidiaries;

               (4) any contract or  commitment  to do any of the foregoing or to
          take any action that,  if taken prior to the date  hereof,  would have
          made any  representation  or  warranty in this  Article IV  materially
          incorrect.

          IV.15    Employee    Agreements    and    Plans.      The    following
                   --------------------------------------
representations  are  limited  to  Benefit  Plans,  contracts,  agreements,  and
programs  that  impose  any  severance,   employment  or  compensation   related
obligations  that pertain to employees  listed on Schedule 6.06 (the  "Scheduled
Employees")  as adopted or maintained by the Company,  Tejas Energy,  LLC, Coral
Energy Services,  LLC ("Coral  Services"),  or their  predecessors  (hereinafter
collectively  referred to as the "Company  Group") on or after June 6, 1996, and
do not cover plans, contracts,  agreements and programs adopted or maintained by
Central and South West  Corporation,  the predecessor  parent of the Company (or
its predecessor).

               (1) Except as described in Schedule  4.15(a),  the Company  Group
                                          -----------------
          has no  liability  relating to Scheduled  Employees  under any Benefit
          Plans or under  any


                                       43


<PAGE>


          severance,  employment or compensation  related contracts,  nor is the
          Company  Group  a  party  to or  bound  by any  collective  bargaining
          agreement, consulting, independent contractor or service agreement, or
          deferred compensation  agreement,  relating to the Scheduled Employees
          which is material to the business of the Company.

               (2) Except as  described  in  Schedule  4.15(a),  (i) the Company
                                             -----------------
          Group does not  maintain,  nor is it  required to  contribute  to, any
          Benefit Plan on behalf of the Scheduled  Employees;  (ii) no Scheduled
          Employees of the Company Group are covered under any Benefit Plan; and
          (iii) each Benefit Plan described in Schedule 4.15(a) that is intended
                                               ----------------
          to be  qualified  under  Section  401(a)  of the Code has  received  a
          favorable  determination letter of the IRS stating that the plan meets
          the  requirements  of the Code and that the trust  associated with the
          plan is  tax-exempt  under Section  501(a) of the Code,  or, where the
          Benefit Plan has been amended since the latest  determination  letter,
          is either within the remedial  amendment  period for obtaining  such a
          favorable  determination  letter  and shall  obtain  such a  favorable
          determination  letter,  or opinion of counsel is provided stating that
          the plan, as amended,  meets the requirements of the Code and that the
          trust  associated with the plan is tax-exempt  under Section 501(a) of
          the Code.

               (3) The Company Group has no liability  under any  multi-employer
          plan (within the meaning of Section 4001 of ERISA) with respect to its
          employees.

               (4) To Seller's  Knowledge,  each  Benefit  Plan which is a group
          health plan  (within the  meaning of Section  5000(b)(1)  of the Code)
          complies in all material  respects with,  and has been  maintained and
          operated in all  material  respects in  accordance  with,  each of the
          health care continuation requirements of Section 162(k) of the Code as
          in effect for years beginning prior to 1989, Section 4980B of the Code
          for years  beginning  after  December 31, 1988, and Part 6 of Title I,
          Subtitle B of ERISA.

               (5) Except as disclosed in Schedule  4.15(e),  the Company  Group
                                          -----------------
          has no  liability  for  post-retirement  welfare  benefits,  including
          retiree medical benefits.

               (6)  To  Seller's   Knowledge   (i)  each   Benefit   Plan,   the
          administrator and fiduciaries of each Benefit Plan, and all members of
          the Company Group have complied with the  applicable  requirements  of
          ERISA (including,  but not limited to, the fiduciary  responsibilities
          imposed by Part 4 of Title I,  Subtitle B of ERISA),  the Code and any
          other  applicable  requirements  of law  governing  each Benefit Plan,
          except  for such  noncompliance  as is not  likely to have a  Material
          Adverse  Effect;  and (ii) each  Benefit  Plan has at all  times  been
          properly


                                       44


<PAGE>


          administered in accordance  with all such  requirements of law, except
          for such  impropriety  as is not  likely  to have a  Material  Adverse
          Effect.

               (7)  No  member  of  the  Company   Group  is  delinquent  as  to
          contributions  or payments to or in respect of any Benefit  Plan as to
          which  any  member  of  the  Company   Group  is   obligated  to  make
          contributions  or  payments,  and no member of the  Company  Group has
          failed to pay any  assessments  made with  respect to any such Benefit
          Plan.  All  contributions  and payments  with respect to Benefit Plans
          that are  required to be made by any member of the Company  Group with
          respect to periods  ending on or before the  Closing  Date  (including
          periods from the first day of the then-current  plan or policy year to
          and  including  the  Closing  Date)  have been made or will be accrued
          before the Closing Date by the Company  Group in  accordance  with the
          appropriate  actuarial  valuation  report or  insurance  contracts  or
          arrangements.

               (8) With respect to each  Benefit  Plan,  to Seller's  Knowledge,
          there has not occurred, nor is any person contractually bound to enter
          into, any non-exempt  "prohibited  transaction"  within the meaning of
          Section 4975 of the Code or Section 406 of ERISA.

               (9) No member of the Company  Group has any  liability  under any
          "employee pension benefit plan" (within the meaning of Section 3(2) of
          ERISA)  subject to Title IV of ERISA,  maintained by any member of the
          Company Group and covering  current or former  employees of any member
          of the Company Group, that has been terminated and no employee pension
          benefit plan  maintained  by any member of the Company  Group has been
          the  subject of a  "reportable  event"  (within the meaning of Section
          4043 of ERISA) as to which  notices would be required to be filed with
          the Pension Benefit Guaranty Corporation, other than events reportable
          on Form 5310 of the IRS.

               (10) No proceeding by the Pension Benefit Guaranty Corporation to
          terminate any Benefit Plan in  accordance  with Subtitle 1 of Title IV
          of ERISA has been instituted or, to Seller's Knowledge, threatened.

               (11) As to each Benefit  Plan  subject to Title IV of ERISA,  the
          value of the assets  equals or exceeds  the minimum  required  funding
          obligations  as determined by the Plan's  independent  actuaries as of
          the date of this Agreement.

               (l) The  execution and  performance  of this  Agreement  will not
          result in payments or transfers of property which  constitute  "excess
          parachute payments" within the meaning of Code Section 280G.


                                       45


<PAGE>


          IV.16   Employee Relations.
                  ------------------

               (1)  Except as set forth in  Schedule  4.16(a),  with  respect to
                                            -----------------
          Scheduled  Employees,  to Seller's  Knowledge:  (i) each member of the
          Company Group is in compliance with all applicable requirements of law
          with  respect  to   employment,   employment   practices,   employment
          verifications,  terms and conditions of employment and wages, overtime
          pay, and hours, except for such noncompliance as is not likely to have
          a Material  Adverse  Effect;  (ii) no member of the Company  Group has
          engaged in any unfair labor practice or illegally  discriminated  with
          regard  to any  aspect  of  employment  on the  basis  of any  legally
          prohibited  category  or  classification;  and (iii)  with  respect to
          employees  and  former   employees   who  rendered   services  to,  or
          participated  in conduct or activities in connection  with the Company
          Group,  no member of the  Company  Group is liable for any  arrears of
          wages, salaries or other payments.

               (b)  Except as set forth in  Schedule  4.16(b),  with  respect to
                                            -----------------
          Scheduled  Employees,  there are no: (i) unfair labor practice charges
          or complaints  pending or, to Seller's  Knowledge,  threatened against
          the Company  Group before the National  Labor  Relations  Board;  (ii)
          discrimination  charges pending or, to Seller's Knowledge,  threatened
          against the Company Group before any federal, state or local agency or
          authority;  (iii)  complaints,  charges or  citations  pending  or, to
          Seller's Knowledge, threatened against the Company Group under OSHA or
          any state or local occupational  safety act or regulation;  or (iv) to
          Seller's  Knowledge  material   controversies  pending  or  threatened
          between its employees or any labor union or organization  representing
          or claiming to represent such employees' interests.

          IV.17    CSW Claims.   To   Seller's  Knowledge,  all  matters   which
                   ----------
would constitute  "Losses"  indemnifiable  for breach of Section 4.12 of the CSW
Indemnity  (for the purposes of  determining  Losses,  the  threshold in Section
8.02(a)(x)  shall be changed  from  $500,000 to $200,000  and the  threshold  in
Section 8.02(a)(y) shall be ignored) are attached on Schedule 4.17.

          IV.18    FERC Reports.   The Company  has filed  all material  reports
                   ------------
required  by the Federal Energy  Regulatory  Commission  with  respect to 18 CFR
284.227(d).


                                    ARTICLE V
                   REPRESENTATIONS AND WARRANTIES OF PURCHASER
                   -------------------------------------------

          Purchaser  represents  and  warrants  to  Seller  that  the  following
statements are true and correct in all material  respects as of the date of this
Agreement:


                                       46


<PAGE>


          V.1    Organization   and   Good   Standing.    The   Purchaser  is  a
                 ------------------------------------
corporation duly  incorporated,  validly existing and in good standing under the
Laws of the State of Oklahoma with all requisite  corporate  power and authority
to own,  lease  and  operate  its  properties  and to carry on its  business  as
currently conducted.

          V.2    Authorization    of   Agreement.    The   Purchaser   has   all
                 -------------------------------
requisite  corporate  power and authority to enter into this  Agreement and each
instrument required hereby to be executed and delivered by it at the Closing, to
perform  its  obligations   hereunder  and  thereunder  and  to  consummate  the
transactions contemplated hereby. The execution and delivery by the Purchaser of
this Agreement and each instrument  required hereby to be executed and delivered
by it at the Closing,  and the  performance  of its  obligations  hereunder  and
thereunder,  have been duly and validly  authorized by all  requisite  corporate
action on the part of the  Purchaser.  This Agreement has been duly executed and
delivered by the Purchaser and,  assuming due authorization and execution by the
Seller,  constitutes a legal,  valid and binding  obligation  of the  Purchaser,
enforceable  against the Purchaser in accordance  with its terms,  except as the
same may be limited by legal principles of general  applicability  governing the
application and availability of equitable remedies.

          V.3    No Violations.   The  execution,  delivery  and  performance by
                 -------------
Purchaser  of  this  Agreement,   and  the   consummation  of  the  transactions
contemplated by this Agreement, do not and will not (i) conflict with or violate
any   provision  of  the   certificate   of   incorporation,   bylaws  or  other
organizational  documents of  Purchaser,  (ii) subject to obtaining the Required
Consents,  conflict  with,  or result in the breach of, or  constitute a default
under, or result in the termination, cancellation or acceleration (whether after
the giving of notice or the lapse of time or both) of any right or obligation of
Purchaser under, any note, bond, mortgage,  indenture,  Permit,  license, lease,
agreement,  contract, arrangement or commitment to which Purchaser is a party or
by which Purchaser or any of its assets or properties are bound or affected,  or
(iii) subject to obtaining the Required Consents,  violate or result in a breach
of or constitute a default under any Law or Judgment  applicable to Purchaser or
by which  Purchaser or any of its assets are bound or affected,  except,  in the
cases of clauses (ii) and (iii), for any conflict, breach, default, termination,
cancellation,  acceleration,  loss or violation  which,  individually  or in the
aggregate,  would not  materially  impair  Purchaser's  ability  to  effect  the
Closing.

          V.4    Consents  and  Approvals.   Except for  the  Required  Consents
                 ------------------------
and the  requirements  of the HSR Act,  no Consent is required to be obtained by
Purchaser or any Affiliate from, and no notice or filing is required to be given
by Purchaser or any Affiliate to or made by Purchaser or any Affiliate with, any
Governmental  Authority  or other  Person  in  connection  with  the  execution,
delivery and performance by Purchaser of this Agreement, other than in all cases
where the  failure  to obtain  such  Consent  or to give or make such  notice or
filing  would  not,   individually  or  in  the  aggregate,   materially  impair
Purchaser's ability to effect the Closing.

          V.5    Litigation;   Impairment.   There  are   no   actions,   suits,
                 ------------------------
claims or  proceedings  pending  (whether  at law or in equity)  or, to the best
knowledge of Purchaser,  threatened against


                                       47


<PAGE>


or involving  Purchaser in any court or before or by any Governmental  Authority
which  (i)  questions  the  validity  of this  Agreement  or seeks to  restrain,
prohibit,  invalidate, set aside, prevent or make unlawful this Agreement or any
of the transactions  contemplated  hereby, or (ii) if adversely determined would
in any material  respect  prevent or impair the ability of Purchaser to purchase
the Membership Interests or perform any of its obligations under this Agreement.

          V.6    No  Brokers.   Neither  Purchaser nor  any  of  its  Affiliates
                 -----------
has employed any investment  banker,  broker,  or finder in connection  with the
transactions  contemplated by this  Agreement,  which would give rise to a valid
claim against  Seller,  the Company or any of its  Subsidiaries  for a brokerage
commission, finder's fee, or other like payment.

          V.7    Purchaser's  Knowledge  and  Expertise.    Purchaser is engaged
                 --------------------------------------
in the  business  of  gathering,  transporting  and  processing  natural gas and
related oil and gas businesses,  is generally  familiar with the federal,  state
and local statutes,  laws,  rules and regulations  applicable to the Company and
its Subsidiaries and any associated  business Purchaser intends to conduct after
the Closing, and Purchaser has the expertise necessary to independently evaluate
Seller's title to, and the condition,  operation,  suitability,  performance and
prospects of, the Company and its Subsidiaries.

          V.8    Financing.    Purchaser  has, or has  arranged  for, the  funds
                 ---------
necessary to purchase the Membership Interests for cash from Seller and, subject
to the  satisfaction  of Purchaser's  conditions to Closing set forth in Article
VII,  will  cause the timely  availability  of such  funds for the  purposes  of
consummating  the purchase of the  Membership  Interests in accordance  with the
terms of this Agreement and otherwise fully performing its obligations  pursuant
to this Agreement and the transactions contemplated hereby. The availability and
sufficiency  of funds  for the  purchase  of the  Membership  Interests  and the
performance of Purchaser's  obligations  under this Agreement are not conditions
precedent to the obligations of Purchaser under this Agreement.

          V.9    No  Reliance.    Purchaser  has not  relied  upon  any oral  or
                 ------------
written statements, representations or warranties which may have been made by or
on behalf of Seller or upon any written  reports,  financial or production data,
business plans, projections,  forecasts,  reserve reports or evaluations, or any
environmental  reports,  audits,  studies or  assessments,  or any other written
materials,  copies of which may have been  furnished to Purchaser or as to which
Purchaser may have been  provided  access in  connection  with the  transactions
contemplated by this Agreement.

          V.10    Knowledge.   Purchaser  has no  knowledge  of any  breach  of,
                  ---------
or inaccuracy in, any of the  representations and warranties of Seller set forth
in this Agreement.

          V.11    Investment Intent.   Purchaser hereby  acknowledges  that  the
                  -----------------
Membership  Interests  being purchased by Purchaser under this Agreement are not
registered  under the


                                       48


<PAGE>


Securities  Act or registered  or qualified for sale under any state  securities
law and cannot be resold without registration thereunder or exemption therefrom.
Purchaser  is  acquiring  such  Membership  Interests  for  its own  account  as
principal,  for investment  and not with a view toward the sale or  distribution
thereof.  Purchaser has  sufficient  knowledge  and  experience in financial and
business  matters  to enable it to  evaluate  the  risks of  investment  in such
Membership  Interests  and has the  ability  to bear the  economic  risk of such
investment.


                                    ARTICLE VI
                                    COVENANTS
                                    ---------

          VI.1    Conduct of  the  Business  Pending the  Closing.   During  the
                  -----------------------------------------------
period  from the date of this  Agreement  to the  Closing,  except as  otherwise
contemplated  by this  Agreement  or as  Purchaser  shall  otherwise  consent in
writing,  Seller  shall cause the Company  and its  Subsidiaries  to conduct the
business and operations of the Company and its  Subsidiaries in the ordinary and
usual course in a manner  consistent  with past  practice,  except (i) as may be
necessary to comply with  applicable  Law or the terms of this Agreement or (ii)
as may be required by emergency or force  majeure  conditions.  It is understood
and agreed that Seller may cause the Company to pay cash  dividends to Seller up
to and including the date of the Closing Balance Sheet,  and cause the repayment
of debt,  equal to all of the cash or cash  equivalents  in or  generated by the
Company.  During  the period  from the date of this  Agreement  to the  Closing,
except  as  otherwise  provided  for in this  Agreement  or as  Purchaser  shall
otherwise consent, Seller covenants and agrees that, with respect to the Company
and its Subsidiaries, it shall:

               (10 not approve any new  individual  capital  expenditure  (other
          than expenditures  under AFE's previously  approved by the Company and
          listed on Schedule  6.01(a))  that is in excess of  $100,000,  without
                    -----------------
          prior written consent of Purchaser or aggregate  capital  expenditures
          that are in excess  of $1  million,  (Seller  will  provide  Purchaser
          written  documentation and economic support in anticipation of capital
          expenditures,  and  Purchaser  shall  have one (1)  Business  Day from
          receipt to respond in  writing.  If no response is received by Seller,
          then such capital expenditure will be deemed approved);

               (20 not permit the Company or its  Subsidiaries to dispose of any
          capital  assets of the Company or its  Subsidiaries  if the greater of
          the book  value  or the  fair  market  value,  individually  or in the
          aggregate, of such assets exceeds $200,000; or incur, create or assume
          any  Lien  on any  individual  capital  asset  of the  Company  or its
          Subsidiaries, other than Permitted Liens;

               (30  except  for  well  connections  in the  ordinary  course  of
          business and consistent with past practice,  not permit the Company or
          its  Subsidiaries  to enter  into  any  contract  or other  commitment
          (including any hedging arrangement or other derivative transaction) in
          excess of $250,000 per  transaction or that has a


                                       49


<PAGE>


          term of, or requires the performance of any obligations by the Company
          or its Subsidiaries over a period in excess of, one year, or incur any
          indebtedness  for money  borrowed  or sell any stock in the Company or
          any of its Subsidiaries  (except to an Affiliate of Seller which shall
          be  obligated  to sell the  Company  pursuant  to the  terms  hereof).
          (Seller will provide  Purchaser with a description of any  transaction
          requiring approval under this Section 6.01(c) and Purchaser shall have
          one (1)  Business  Day from  receipt  to  respond  in  writing.  If no
          response is received by Seller then such capital  expenditure  will be
          deemed approved);

               (40 except for annual  merit  increases  or as required by law or
          the terms of any existing  Contract,  not permit any  Affiliate any of
          whose employees  provide services  primarily to or for the Company and
          its  Subsidiaries  to increase  materially the salary,  wage,  rate of
          compensation,   commission,   bonus  or  other   direct  or   indirect
          remuneration  payable to, or other  compensation of, any such employee
          or enter into any contract or other  binding  commitment in respect of
          any such increase  except in the ordinary  course of business or as is
          consistent  with past practice and except for retention,  incentive or
          similar  payments  relating to the  consummation  of the  transactions
          contemplated  by this  Agreement,  not amend,  adopt or terminate  any
          Benefit Plans covering such employees that would  materially  increase
          the liability of the Company  hereunder or enter into any  negotiation
          in  respect  of or enter  into  any  collective  bargaining  agreement
          covering such employees;

               (50 not permit the  Company or its  Subsidiaries  to amend in any
          respect any Major  Contract,  or terminate any of the Major  Contracts
          (except with  respect to purchase  orders or  termination  of material
          Contracts  caused by the  termination  or default  of any other  party
          thereto) or default in the  performance  of any  material  covenant or
          obligation thereunder which default is not cured within any applicable
          grace period;

               (60 not permit the Company or any of its Subsidiaries to make any
          change in its articles of formation,  operating agreements, bylaws, or
          equivalent governing instruments;

               (70  except  for  the  ISDA   Agreement   and  the  Transok  Swap
          Transaction,  not permit the  Company  or any of its  Subsidiaries  to
          incur, assume or guarantee any debt or capitalized lease obligation or
          to enter into any transaction or contract with an Affiliate;

               (80 not permit the Company or any of its Subsidiaries to make any
          election or take any action  inconsistent  with the  treatment  of the
          Company  and the  Subsidiaries  as  disregarded  entities  for federal
          income  tax  purposes under Treasury Regulation  301.7701-3(b)(1); and


                                       50


<PAGE>


               (90 not agree or commit to do any of the foregoing.

          VI.2     Access to Information.
                   ---------------------

               (10 Seller will cause each of the  Company  and its  Subsidiaries
          (i) to permit  representatives  of the Purchaser to have access at all
          reasonable times, and in a manner so as not to unreasonably  interfere
          with  the  normal   business   operations   of  the  Company  and  its
          Subsidiaries, to all premises, properties,  personnel, books, records,
          contracts  and  documents of or  pertaining to each of the Company and
          its Subsidiaries,  (ii) to permit  representatives of the Purchaser to
          review all employee records and to interview all employees assigned to
          the Company and its Subsidiaries,  including without  limitation,  the
          right to have such employees  answer  questions  concerning  their job
          qualifications,  employment  history,  current and past job duties and
          work experience during those periods employed by the Company or any of
          its  Subsidiaries,  and  (iii) to  furnish  to the  Purchaser  and its
          representatives such information concerning the business,  properties,
          contracts,  records and personnel of the Company and its  Subsidiaries
          (including financial, operating and other data and information) as may
          be  reasonably  requested,   from  time  to  time,  by  the  Purchaser
          (including for the purposes hereof information  necessary to audit the
          Company's  and its  Subsidiaries'  financial  statements  and  balance
          sheets).

               (20 Notwithstanding the foregoing provisions of this Section, the
          Seller  shall  not be  required  to cause  the  Company  or any of its
          Subsidiaries  to grant access or furnish  information to the Purchaser
          or any of the  Purchaser's  representatives  to the  extent  that such
          information is subject to an attorney/client, attorney work product or
          accountant/client  privilege or that such access or the  furnishing of
          such  information  is  prohibited  by Law or by a  valid  and  binding
          confidentiality agreement with a third party; PROVIDED, HOWEVER, that,
          in the latter  instance,  (i) if so  requested by the  Purchaser,  the
          Seller  will use all  commercially  reasonable  efforts to obtain from
          such third party a waiver of such  prohibition,  and (ii) Seller shall
          provide  a  schedule  showing a  description  of any  information  not
          disclosed and the reason such  information  was not disclosed.  In the
          event  Purchaser  requests  any  scheduled  information,  Seller shall
          supply such  information and Purchaser shall indemnify  Seller for any
          Damages (as  hereafter  defined)  which Seller  suffers as a result of
          such disclosure.

               (30 To the extent reasonably necessary or desirable in connection
          with the Seller's ownership of the Company or any matter arising under
          this   Agreement,   after  the   consummation   of  the   transactions
          contemplated  hereby,  Seller  will,  upon  prior  written  notice  to
          Purchaser,  have  reasonable  access at all reasonable  times and in a
          manner so as not to interfere with the normal  business


                                       51


<PAGE>


          operations  of the Company  and its  Subsidiaries,  to all  personnel,
          books, records, work papers,  contracts and documents of or pertaining
          to  each  of the  Company  and  its  Subsidiaries  prior  to  Closing.
          Purchaser shall preserve all such  information,  records and documents
          for a period of six (6) years  following  the Closing and if requested
          by Seller give  Seller an  opportunity  to make copies  thereof at the
          sole expense of Seller.

               (40 Each of the  parties  hereto  will  preserve  and  retain all
          schedules, work papers and other documents relating to any Tax Returns
          of or with respect to the Company or any of its Subsidiaries or to any
          claims,  audits or other  proceedings  affecting the Company or any of
          its  Subsidiaries  until the  expiration of the statute of limitations
          (including  extensions) applicable to the taxable period to which such
          documents  relate or until the final  determination of any controversy
          with respect to such taxable period and until the final  determination
          of any  payments  that may be required  with  respect to such  taxable
          period under this Agreement.

               (50  The   confidentiality   of  all  documents  and  information
          furnished in connection  with the  transactions  contemplated  by this
          Agreement  shall  be  governed  by the  terms  of the  Confidentiality
          Agreement.  The  Confidentiality  Agreement  shall  terminate  at  the
          Closing.

          VI.3    Consents.
                  --------

               (10 To the extent  required  by the HSR Act,  each of the parties
          will (i) file or cause to be filed with the Federal  Trade  Commission
          and  the  United  States   Department  of  Justice,   as  promptly  as
          practicable  after the execution and delivery of this  Agreement,  all
          reports and other documents required to be filed by such party and any
          other  person (as defined in the HSR Act)  affiliated  with such party
          under  the HSR Act  concerning  the  transaction  contemplated  hereby
          (requesting early termination of the waiting period under the HSR Act)
          and  (ii)  promptly  comply  with or  cause  to be  complied  with any
          requests  by  the  Federal  Trade  Commission  or  the  United  States
          Department  of Justice  for  additional  information  concerning  such
          transactions.  Each party agrees to request early  termination  on its
          Premerger Notification Form of the applicable waiting period under the
          HSR Act.

               (20  Each of the  parties  will use all  commercially  reasonable
          efforts  (and will  cooperate  with the other party) (i) to obtain all
          other consents,  approvals, orders, authorizations and waivers of, and
          to effect all declarations,  filings and registrations with, all third
          parties (including  Governmental  Authorities) that are required to be
          made  or  effected  by it to  enable  it to  effect  the  transactions
          contemplated  hereby  and (ii) to take,  or to cause to be taken,  all
          appropriate  action,  and to do,  or to cause to be done,  all  things
          necessary,  proper or advisable


                                       52


<PAGE>


          under  applicable  Laws or otherwise to consummate  and make effective
          the transactions contemplated by this Agreement.

               (30 All costs and expenses of obtaining or effecting  any and all
          of  the  consents,   approvals,   orders,   authorizations,   waivers,
          declarations,  filings and  registrations  referred to in this Section
          6.03 shall be borne by the party incurring the same.

               (40 Seller shall  obtain the waiver of the Required  Consents set
          forth  on  Schedule  3.04  prior  to  Closing  in  writing  in a  form
                     --------------
          satisfactory to Purchaser.

          VI.4    Public   Announcements.    Except  as   may  be  required   by
                  ----------------------
applicable Law or any securities exchange on which the securities of the parties
or their  Affiliates  are listed,  neither  Purchaser nor Seller shall issue any
press release or make any public statement with respect to this Agreement or the
transactions  contemplated  by this Agreement  without the prior approval of the
other party to this Agreement,  such approval not to be unreasonably withheld or
delayed.  Purchaser  and Seller will consult with each other before  issuing any
press  release or otherwise  making any public  statements  with respect to this
Agreement or the transactions contemplated by this Agreement.

          VI.5    Environmental   Matters.    Purchaser  has  reviewed  the  CSW
                  -----------------------
Indemnity and has made its own determination of the availability and adequacy of
the CSW Indemnity to indemnify the Company and its Subsidiaries  against certain
environmental claims, as therein provided. Purchaser acknowledges that, prior to
its execution of this Agreement, it has independently conducted such environment
inspections and investigations or obtained such environmental  reports,  audits,
studies, assessments and inspections as it has deemed necessary or advisable and
that it is  relying  upon  its own  inspections  and  investigation  in order to
satisfy  itself as to  environmental  matters  pertaining to the Company and its
Subsidiaries.  Purchaser  hereby  assumes  all risks  that the  Company  and its
Subsidiaries  may  have  sites  and own or  lease  properties  containing  waste
materials or hazardous substances. Except as provided in Section 9.02, Purchaser
forever and unconditionally  waives and releases Seller from any and all Damages
and  costs  of  remediation  relating  to  violations  by the  Company  and  its
Subsidiaries  of any  Environmental  Laws,  including  those which are  unknown,
unanticipated  or  unsuspected  or which may hereafter  arise as a result of the
discovery of new or additional facts.


                                       53


<PAGE>


          VI.6    Employee Related Matters
                  ------------------------

               (10  Purchaser  agrees  to  offer on or about  the  Closing  Date
          at-will  employment to at least 280 of the employees of Coral Services
          listed on Schedule  6.06  ("Continued  Employees")  of the  Disclosure
                    --------------
          Memorandum.  Purchaser  further  agrees to identify  the names of such
          Continued  Employees at least five (5) days prior to the Closing Date.
          Seller shall be responsible  for the termination of employees of Coral
          Services  listed on Schedule  6.06 not  identified  by  Purchaser as a
          Continued  Employee  (not to exceed 105  individuals).  Purchaser  and
          Seller agree to require,  as a condition of Purchaser's  employment of
          Continued  Employees and in  consideration of Purchaser's and Seller's
          costs  connected  therewith,  a  waiver  and  release  of  all  of the
          Continued  Employee's claims against  Purchaser,  Seller, the Company,
          Coral Services,  and all of their  Affiliates based on all occurrences
          prior  to  the  date  of  execution  of the  waiver  and  release.  As
          additional consideration for Continued Employees to accept Purchaser's
          offer of employment  and to execute the waiver and release,  Purchaser
          shall offer each Continued  Employee a sign-on bonus equal to one-half
          of his or her  monthly  rate of  base  pay on the  day  preceding  the
          Closing  Date.  Purchaser  and  Seller  have  entered  into  a  letter
          agreement  simultaneously  with the execution of this  Agreement  that
          allocates  severance  costs and other  benefit  expenses  between  the
          parties.  The terms of the  employment  of Continued  Employees by the
          Purchaser after the Closing shall be under substantially similar terms
          of such  employees'  employment by Coral  Services on the date hereof,
          including the level of wages or salary,  vacation,  holiday,  and sick
          leave.  Purchaser agrees that, except as provided herein, for a period
          of two years  following the Closing  Date,  neither it nor the Company
          nor any of its  Subsidiaries  shall  directly  solicit  for  hire  any
          Oklahoma  employee  of Seller or Coral  Services  without  the written
          consent of Seller or Coral Services, as applicable.

               (20  Purchaser  represents,  warrants,  and  covenants  that  the
          employees of Coral  Services  which will not be offered  employment by
          Purchaser are less than fifty (50) at any one site and therefore  will
          not  require  notice  under  the  Worker   Adjustment  and  Retraining
          Notification Act ("WARN").

               (30 Effective as of the Closing Date,  Continued  Employees shall
          cease to  participate  in all  Benefit  Plans of  Seller  or  Seller's
          Affiliates.

               (40  Effective as of the Closing Date,  the Purchaser  shall take
          all action  necessary or appropriate to extend coverage under a new or
          existing defined benefit pension plan (the "Purchaser's Pension Plan")
          qualified under section 401(a) of the Code to the Continued  Employees
          who are participants in the defined benefit pension plan in effect for
          Coral Services  employees (the "Seller's Pension Plan") at the Closing
          Date. The Continued Employees shall be credited


                                       54


<PAGE>


          with service under the  Purchaser's  Pension Plan, for eligibility and
          vesting purposes,  but not for accrual of benefits purposes,  with the
          service  credited to them for eligibility  and vesting  purposes under
          the Seller's Pension Plan as of the Closing Date.

               (50  Effective  as of the  Closing,  the Seller  shall cause each
          Continued  Employee who is a participant in the Coral Energy  Services
          LLC Thrift Plan (the Coral  Thrift Plan) on the Closing Date to become
          100% vested in his or her account balances under the Coral Thrift Plan
          as of the Closing  Date.  Effective as of the Closing,  the  Purchaser
          shall take all action  necessary and  appropriate  to extend  coverage
          under a new or existing defined  contribution  plan (the  "Purchaser's
          Savings  Plan")  qualified  under  section  401(a)  of the Code to the
          Continued  Employees who have account balances under the "Coral Thrift
          Plan" at the Closing Date.  The Continued  Employees  will be credited
          with service under the  Purchaser's  Savings Plan, for eligibility and
          vesting purposes, with the service credited to them under the terms of
          the Coral Thrift Plan as of the Closing Date.  As soon as  practicable
          following the Closing Date,  the Seller shall cause to be  transferred
          from the  trustee  of the  Coral  Thrift  Plan to the  trustee  of the
          Purchaser's  Savings  Plan, an amount,  in cash or in kind  (including
          participant  loans which shall be transferred  in kind),  equal to the
          aggregate account balances of the Continued  Employees under the Coral
          Thrift Plan  determined as of the date of transfer in accordance  with
          the  valuation  methods of the Coral Thrift  Plan.  From and after the
          date of such  transfer,  the  Purchaser  shall  cause the  Purchaser=s
          Savings Plan to assume the  obligations  of the Coral Thrift Plan with
          respect to the benefits  accrued by the Continued  Employees under the
          Coral  Thrift  Plan,  and the  Coral  Thrift  Plan  shall  cease to be
          responsible  therefor.  Purchaser  and  Seller  shall use  their  best
          efforts to ensure that any loan balances  outstanding  under the Coral
          Thrift  Plan  with  respect  to  any  Continued   Employee   shall  be
          transferred to the  Purchaser's  Savings Plan without  acceleration or
          default.

               (60  Effective as of the Closing Date,  Purchaser  shall take all
          actions  necessary  or  appropriate  to extend  coverage  under new or
          existing welfare benefit plans (the "Purchaser  Welfare Plans") to the
          Continued  Employees,  which  plans  shall  include  medical,  dental,
          prescription  drug, life insurance,  long-term  disability and retiree
          medical benefits. Claims for such benefits by Continued Employees with
          respect to purchases,  services or treatment rendered on or subsequent
          to the  Closing  shall be covered by the  Purchaser  Welfare  Plans in
          accordance  with the  terms  of such  Plans,  and not by the  Seller's
          plans.  Claims for welfare  benefits by  employees  of Coral  Services
          listed on  Schedule  6.06,  with  respect to  purchases,  services  or
          treatment rendered prior to the Closing shall be covered by the Seller
          Welfare Plans in accordance  with the terms of such Plans,  and not by
          the  Purchaser  plans.  Claims for long term  disability  benefits  by
          Continued  Employees  arising  out of  occurrences  subsequent  to the
          Closing  Date


                                       55


<PAGE>


          shall be covered by the  Purchaser's  Welfare Plans in accordance with
          the terms of such Plans,  and not by the  Seller's  plans.  Claims for
          long term disability  benefits by Continued  Employees  arising out of
          occurrences  prior to the Closing  Date shall be covered by the Seller
          Welfare Plans in accordance  with the terms of such Plans,  and not by
          the Purchaser's plans. Neither the Purchaser nor any of its Affiliates
          shall be liable for payment of any disability  benefit due to disabled
          employees of Coral Services (such  employees  listed on Schedule 6.06)
          who, prior to the Closing, are in the waiting or qualifying period for
          disability   benefits.   After  the  Closing,   the  Seller  shall  be
          responsible for disability  benefits payable to such persons under the
          Seller's  disability  plan.  The  Purchaser  shall cause the Continued
          Employees to be granted credit under the Purchaser  Welfare Plans, for
          the year during  which the Closing  occurs,  against the  deductibles,
          co-payment  limits and  out-of-pocket  limits of  Purchaser's  Welfare
          Plans for the covered  expenses  already  incurred  by such  Continued
          Employees  for such  year  under  the  welfare  plans of Seller or its
          Affiliates  in  which  such  Continued  Employees  participate  at the
          Closing Date. In addition,  the Purchaser shall cause to be waived any
          eligibility waiting periods and pre-existing  condition limitations or
          restrictions  under  the  Purchaser's  Welfare  Plans  to  the  extent
          necessary to provide immediate  coverage of Continued  Employees under
          such welfare plans as of the Closing Date (but only to the extent that
          coverage was provided under the applicable  welfare plan of the Seller
          or its Affiliates).  Group health benefits  provided under Purchaser's
          Welfare Plans shall be sufficient  to satisfy the  obligations  of the
          Seller and its Affiliates under Section 4980B of the Code with respect
          to the  Continued  Employees  so  that  neither  the  Seller  nor  its
          Affiliates shall incur any tax under Section 4980B of the Code.

               (70 Seller  shall be  responsible  for all claims for health care
          flexible  spending account  benefits  submitted after the Closing Date
          for expenses incurred prior to the Closing Date by Continued Employees
          shall be paid by the Seller's or its Affiliates'  health care flexible
          spending  account  plan.  The  Purchaser  shall  allow each  continued
          Employee who  participated in a health care flexible  spending account
          of the Company  Group or their  Affiliates  to establish a health care
          flexible  spending  account  pursuant to Purchaser's  flexible benefit
          account  plan.  If  Continued   Employees   elect  to  participate  in
          Purchaser's  flexible  benefit account plan, all claims incurred after
          Closing Date and submitted  shall be paid out of Purchaser's  flexible
          spending   account  plan.   Group  health   benefits   provided  under
          Purchaser's  health  care  flexible  benefit  account  plan  shall  be
          sufficient to satisfy the obligations of the Seller and its Affiliates
          under  Section  4980B  of the  Code  with  respect  to  the  Continued
          Employees  so that neither the Seller nor its  Affiliates  shall incur
          any tax under Section 4980B of the Code. Purchaser and Seller agree to
          adjust the Continued Employees flexible spending accounts as necessary
          to accomplish the intent of this paragraph.


                                       56


<PAGE>


               (80 For the period from the Closing  until  January 5, 2001,  the
          Purchaser agrees to,  establish and maintain a severance  benefit plan
          (the  "Purchaser's   Severance  Plan")  applicable  to  the  Continued
          Employees.

               (90 All  service  credited  under  Seller's  vacation  policy for
          Continued Employees, including unused balances, shall be recognized by
          Purchaser  and  the  Company  and  its  Subsidiaries.   All  Continued
          Employees  who are  eligible  will be entitled to  participate  in the
          Purchaser's  Employee  Gain Share Plan or other  applicable  incentive
          program that the Purchaser may have or that may be  established by the
          Company or its Subsidiaries after the Closing.

               (100 Claims for  workers'  compensation  benefits  arising out of
          occurrences prior to the Closing shall be the responsibility of Seller
          or Coral  Services.  Claims for  workers'  compensation  benefits  for
          Continued  Employees  arising  out of  occurrences  subsequent  to the
          Closing shall be the responsibility of Purchaser or the Company or its
          Subsidiaries.

               (110 Nothing herein shall be deemed or construed to (i) give rise
          to any rights, claims,  benefits, or causes of action to any Continued
          Employee or (ii)  prevent,  restrict,  or limit the  Purchaser  or the
          Company and its  Subsidiaries  following the Closing from modifying or
          terminating  its pension or other benefit plans,  programs or policies
          from  time  to  time  as it may  deem  appropriate,  subject  only  to
          compliance  with the express  provisions of paragraphs (a) through (i)
          of this Section 6.06 for the benefit of Seller.

          VI.7    Supplemental   Disclosures.    Between   the  date   of   this
                  --------------------------
Agreement and the Closing, Seller will promptly notify Purchaser, in writing, if
Seller  obtains  actual  Knowledge  of any  fact or  condition  that  causes  or
constitutes a breach of any of Seller's representations and warranties as of the
date of this Agreement,  or if Seller obtains actual Knowledge of the occurrence
after the date of this  Agreement of any fact or  condition  that would cause or
constitute  a material  breach of any such  representation  or warranty had such
representation  or warranty  been made as of the time of occurrence or discovery
of such fact or condition.

          VI.8    Options  Concerning  El Paso   Agreements.    Purchaser  shall
                  -----------------------------------------
have the option, exercisable by written notice delivered to Seller no later than
fifteen (15) days prior to the Closing Date, to require the  termination  of the
El Paso Sale  Agreement  and the  assignment to Transok Gas, LLC, of the El Paso
Transportation  Agreements,  effective in each case as of the Closing Date.  The
failure of  Purchaser  to give such notice to Seller on or prior to fifteen (15)
days prior to the Closing Date shall  constitute an election by Purchaser not to
exercise such option.  If Purchaser  exercises such option in a timely manner as
provided in this Section  6.09,  then,  at the  Closing,  Seller will deliver to
Purchaser (a) an agreement executed by Coral Energy Resources, L.P., and Transok
Gas,  LLC,  terminating  the El Paso Sale  Agreement,  and (b) an


                                       57


<PAGE>


assignment of contract rights from Coral Energy Resources, L.P., to Transok Gas,
LLC,  pursuant  to which  Coral  Energy  Resources,  L.P.,  assigns  the El Paso
Transportation Agreements to Transok Gas, LLC, and Transok Gas, LLC, assumes and
agrees to perform  all of the terms  thereof,  effective  in each case as of the
Closing Date.

          VI.9    Casualty Loss.   If, between the  date of this  Agreement  and
                  -------------
the Closing,  all or any portion of the real or personal property of the Company
or its  Subsidiaries  is damaged or  destroyed  by fire or other  casualty  loss
("Casualty  Loss"),  this  Agreement  shall  remain  in full  force  and  effect
notwithstanding such destruction or damage. In such case, the Purchaser shall be
entitled to the  proceeds of any  insurance  payments  relating to such  damaged
property and Seller shall pay  Purchaser  an amount equal to any  deductible  or
uninsured physical Casualty Loss (to the extent of the actual expenses to repair
or replace the destroyed or damaged property) not covered under the terms of the
applicable insurance policy or policies.

          VI.10     Customer   Relations.    Purchaser  and  Seller  shall  work
                    --------------------
together to assure a smooth transition and a minimum  disruption in the business
of the  Company  and its  Subsidiaries  and  Seller  shall,  as  necessary  when
requested  by  Purchaser,  cooperate  with  Purchaser  in customer  contacts and
meetings to facilitate the transaction.

          VI.11     Dormant Subsidiaries.    Prior to the Closing,  Seller shall
                    --------------------
cause the Company and its  Subsidiaries to divest  themselves of any interest in
any Subsidiaries which own no assets and have no contracts.

          VI.12     Corporate   Books.    To the  extent  Seller or  any of  its
                    -----------------
Affiliates  possesses any books and records of the Company or its  Subsidiaries,
Seller shall deliver such books and records to Purchaser  promptly following the
Closing.

          VI.13    Rate Proceedings.   The Company or its Subsidiaries currently
                   ----------------
have the following pending rate proceedings:

               (a)   Oklahoma  Traditional System FERC  Section 311 Petition for
                     Rate Approval;
               (b)   Oklahoma Transmission System  FERC Section 311 Petition for
                     Rate Approval;
               (c)   Anadarko System FERC Section 311 1996 Petition; and
               (d)   Palo Duro Texas Railroad Commission  (TRC)  "Application of
                     Transok L.L.C. pursuant to Section 311 of the  Natural  Gas
                     Policy  Act for review of a transportation rate."

          Notwithstanding   the  foregoing,  the  Seller   reserves  the   right
for the Company and its Subsidiaries to agree with the appropriate  Governmental
Authorities or other parties, at any time prior to the Closing, to settle all or
any part of the issues in such  proceedings or litigation,  including any issues
regarding the appropriate maximum rate, fuel component,  rate of return or


                                       58


<PAGE>


other cost of service or rate  design  aspect,  when such  action is in the best
interest of the Company or such  Subsidiary and could not reasonably be expected
to have a Material Adverse Effect on the Company.

          From  the  date   of this   Agreement   until   the  Closing,   Seller
shall cause the  Company and its  Subsidiaries  to use  commercially  reasonable
efforts  to  pursue  the  obtaining  of the  maximum  rates  requested  in  such
proceedings.

          VI.14    Change of  Name.   Within  90  days  following  the  Closing,
                   ---------------
Purchaser  shall cause the Company to remove the name "Tejas" from the Company's
name and neither the Company and its  Subsidiaries  nor Purchaser shall have any
right thereafter to the name "Tejas"for purposes of identification or otherwise.

          VI.15    Termination of  Transok  Properties  Indemnities.   Effective
                   ------------------------------------------------
at the Closing,  without the need of any further  action or  documentation,  the
eleventh  paragraph shall be eliminated,  canceled,  and terminated from each of
the following agreements: (a) the Assignment and Indemnity Agreement relating to
Transok Properties,  LLC, dated as of the 1st day of April, 1999, by and between
Tejas  Transok  Holding,  LLC, and Tejas Gas,  LLC, and (b) the  Assignment  and
Indemnity Agreement relating to Transok Properties, LLC, dated as of the 1st day
of February, 1999, by and between Transok, LLC, and Tejas Transok Holding, LLC.

          VI.16    Intercompany Disputes.   Any  intercompany  disputes  between
                   ---------------------
Seller  and  its   Affiliates   (other  than  the  Company  and  the   Company's
Subsidiaries),  on the one hand, and the Company and the Company's Subsidiaries,
on the other hand, shall be resolved and settled prior to Closing.


                                   ARTICLE VII
                              CONDITIONS TO CLOSING
                              ---------------------

          VII.1   General Conditions.
                  ------------------

          The  obligations  of  each  party  to  this  Agreement  to  consummate
the  transactions  contemplated  by  this  Agreement  shall  be  subject  to the
satisfaction  or,  to the  extent  permitted  by Law,  waiver  of the  following
condition at or prior to the Closing:

          No  order, statute,  rule,  regulation,  executive  order, injunction,
stay,  decree  or  restraining  order  by any  court  of  competent jurisdiction
or   governmental   or  regulatory   authority  or   instrumentality  shall   be
in effect that prohibits the  consummation of the  transactions  contemplated by
this Agreement,  and the applicable  waiting period under the HSR Act shall have
terminated or expired.


                                       59


<PAGE>


          VII.2   Conditions  to  Obligations  of the  Seller.   The obligations
                  -------------------------------------------
of the Seller to consummate  the  transactions  contemplated  by this  Agreement
shall be subject  to the  satisfaction  or waiver at or prior to the  Closing of
each of the following conditions:

               (10 Except for nonperformance or noncompliance with agreements or
          covenants by Purchaser that,  individually or in the aggregate,  would
          not  reasonably be expected to result in a Material  Adverse Effect on
          the expected  benefits to the Seller of the transactions  contemplated
          under this Agreement, Purchaser shall have performed and complied with
          all  agreements  and  covenants  required to be performed and complied
          with by Purchaser under this Agreement at or prior to the Closing;

               (20 The  representations and warranties of Purchaser contained in
          this Agreement shall be true and correct at and as of the date of this
          Agreement and at and as of the Closing Date as though  restated on and
          as of such date (except in the case of any  representation or warranty
          that by its  terms is made as of a date  specified  therein,  in which
          case such  representation  or warranty shall be true and correct as of
          such date), except where the failure of one or more representations or
          warranties to be true and correct,  individually  or in the aggregate,
          would not  reasonably  be  expected  to result in a  Material  Adverse
          Effect on the  expected  benefits  to the  Seller of the  transactions
          contemplated under this Agreement;

               (30 The Purchaser  Guarantor  shall have executed the Guaranty in
          form and substance similar to that set forth in Exhibit E, pursuant to
                                                          ---------
          which such Purchaser Guarantor unconditionally  guarantees fulfillment
          of the  obligations  of Transok,  LLC under the ISDA Agreement and the
          Transok Swap Transaction;

               (40  Purchaser  shall have  entered into the Storage Gas Purchase
          Agreement; and

               (50 Seller shall have received from  Purchaser the Purchase Price
          and Tejas Gas  Marketing  shall have received the Storage Gas Purchase
          Consideration.

          VII.3   Conditions to Obligations of Purchaser.
                  --------------------------------------

          The   obligation  of   Purchaser   to  consummate   the   transactions
contemplated by this Agreement shall be subject to the satisfaction or waiver at
or prior to the Closing of each of the following conditions:

               (10 Except for nonperformance or noncompliance with agreements or
          covenants by Seller that, individually or in the aggregate,  would not
          reasonably  be expected to result in a Material  Breach,  Seller shall
          have performed and complied


                                       60


<PAGE>


          with  all  agreements  and  covenants  required  to be  performed  and
          complied  with by  Seller  under  this  Agreement  at or  prior to the
          Closing;

               (20   There   shall   have  been  no   Material   Breach  of  the
          representations  and  warranties  of Seller in Articles  III and IV of
          this  Agreement  (in  those  instances  in which a  representation  or
          warranty is limited to Seller's  knowledge  and in those  instances in
          which a  covenant,  representation,  or warranty is limited to matters
          which would have a Material Adverse Effect, such limitations shall NOT
          apply to such  covenant,  representation,  or warranty for purposes of
          Purchaser's  conditions to Closing under Sections  7.03(a) and (b)) at
          and as of the date of this Agreement and at and as of the Closing Date
          which remain uncured for more than thirty (30) days  following  notice
          from Purchaser to Seller of such Material Breach (it is understood the
          cure may,  among other  options,  take the form of a reduction  in the
          Purchase  Price to offset the  Damages  resulting  from such  Material
          Breach or Seller may indemnify  Purchaser against the Damages incurred
          by Purchaser as a result of such Material Breach);

               (30 Purchaser  shall have  received the documents  referred to in
          Section 2.04;

               (40 Purchaser shall have received from Seller the Bill of Sale of
          Natural Gas conveying the Greasy Creek Gas Inventory as referred to in
          Section  2.06 and in writing the waiver of the  Required  Consents set
          forth in Schedule 3.04 in the form attached as Exhibit F; and
                   -------------                         ---------

               (50  Purchaser   shall  have  received  the  resignation  of  all
          officers,  managers  and  directors  of the Company and the  Company's
          Subsidiaries other than the Continued Employees.


                                   ARTICLE VIII
                                   TERMINATION
                                   -----------

          VIII.1    Termination.    This Agreement  may be  terminated  and  the
                    -----------
transactions  contemplated  by this Agreement may be abandoned at any time prior
to the Closing only as follows:

               (10 by the mutual written agreement of Purchaser and Seller; or

               (20 by either  Purchaser  or Seller if there  shall be any Law or
          regulation   that   makes  the   consummation   of  the   transactions
          contemplated by this Agreement  illegal or otherwise  prohibited or if
          consummation of the transactions


                                       61


<PAGE>


          contemplated by this Agreement would violate any  nonappealable  final
          Judgment  of any  Court or  Governmental  Authority  having  competent
          jurisdiction.

          VIII.2    Effect of  Termination.   If this  Agreement  is  terminated
                    ----------------------
as permitted under Section 8.01, such termination  shall be without liability to
any  party  to  this  Agreement  or  to  any  Affiliate,   or  their  respective
shareholders,    directors,    officers,    employees,   agents,   advisors   or
representatives,  and  following  such  termination  no  party  shall  have  any
liability under this Agreement or relating to the  transactions  contemplated by
this Agreement to any other party; provided, however, that:
                                   --------

               (1) If the Closing  does not occur on the Closing Date due to any
          breach of this Agreement by Purchaser,  Seller, at its option, may (i)
          enforce  specific  performance,  or (ii)  terminate  this Agreement in
          which case Seller shall be entitled to indemnification  from Purchaser
          for all Damages (as defined below) arising as a result of such breach.
          If Seller  terminates this Agreement as a result of any breach of this
          Agreement  by  Purchaser,  Seller may retain the  Deposit  and accrued
          interest  thereon  and apply  said sum and  accrued  interest  thereon
          against  any  amounts  awarded  to  Seller  as   indemnification   for
          Purchaser's  breach.  If the award for such  Damages  is less than the
          Deposit,  Seller  will  return the amount of the  Deposit  and accrued
          interest  thereon which is in excess of the award to Purchaser  within
          15 days after any such award  becomes  final and  binding and the time
          for filing all appeals has expired.

               (2) If the Closing  does not occur on the Closing Date due to any
          breach of this  Agreement  by Seller,  Purchaser,  at its option,  may
          either (i) enforce  specific  performance of this  Agreement,  or (ii)
          terminate this Agreement in which case, Purchaser shall be entitled to
          the prompt return of the Deposit and accrued  interest  thereon and to
          indemnification  from  Seller for all  Damages  arising as a result of
          such breach by Seller.

               (3) Notwithstanding anything to the contrary contained herein, if
          the Closing  does not occur on the Closing  Date for any reason  other
          than  Purchaser's  breach of this Agreement,  then Seller shall return
          the Deposit and accrued interest at the Interest Rate.

The provisions of this paragraph and the Confidentiality Agreement shall survive
any termination of this Agreement pursuant to this Article.


                                       62


<PAGE>


                                   ARTICLE IX
                            INDEMNIFICATION; SURVIVAL
                            -------------------------

          IX.1    Indemnification    by    Purchaser.     Purchaser       hereby
                  ----------------------------------
indemnifies  and holds harmless  Seller and its Affiliates  from and against (a)
any and all claims,  liabilities,  damages, penalties,  Judgments,  assessments,
losses, costs and expenses,  including reasonable attorneys' fees (collectively,
"Damages"),  arising in connection  with the Company and its  Subsidiaries  from
events,  conditions or  occurrences  after the Closing,  (b) any and all Damages
incurred by Seller and its  Affiliates  in  connection  with (i) a breach of any
representation  or warranty made by Purchaser in Article V, and (ii) any failure
by  Purchaser  to perform any  covenant or other  agreement  hereunder.  Nothing
herein shall be interpreted  or construed to limit  Purchaser's or the Company's
rights under the CSW Indemnity.

          IX.2    Indemnification   by Seller.    Seller  shall  indemnify   and
                  ---------------------------
hold harmless  Purchaser and its  Affiliates  from and against (a) Damages for a
breach  of  the  representations,  warranties  or  covenants  contained  in  the
following  Sections:  3.02;  3.07;  4.04;  4.07;  4.11;  4.13; 4.14; 4.15; 6.01,
arising in  connection  with the  Company and its  Subsidiaries  that arise from
events, conditions or occurrences prior to the Closing and provided further that
claims for Damages arising from a breach of the representations,  warranties and
covenants set forth in Sections  4.13;  4.14 and 6.01 are raised within one year
following the Closing and Damages  arising from a breach of the  representations
and warranties set forth in Sections 3.02;  3.07; 4.04; 4.11 and 4.15 are raised
within two years of Closing,  (b) Damages for breach of the  representations and
warranties contained in Section 4.08, but only to the extent such Damages result
from events occurring between June 6, 1996, and the Closing and provided further
that any such claims for Damages  arising  from a breach of the  representations
and warranties set forth in Section 4.08 are raised  within18  months  following
the Closing, (c) all Taxes,  including any and all interest,  penalties or other
assessments  related thereto,  attributable to the operations of the Company and
its  Subsidiaries  for any  taxable  period  ending  prior to the  Closing  Date
(treating  any taxable  period that does not close prior to such time as a short
taxable period ending at such time).

          IX.3    Indemnification   Procedure.    The party or parties  making a
                  ---------------------------
claim for  indemnification  under this  Article IX shall be, for the purposes of
this Agreement,  referred to as the "Indemnified Party" and the party or parties
                                     -----------------
against  whom such claims are  asserted  under this Article IX shall be, for the
purposes of this Agreement,  referred to as the "Indemnifying Party". All claims
                                                 ------------------
by any Indemnified Party under this Article IX shall be asserted and resolved as
follows:

               (1) In the event  that (i) any  claim,  demand or  Proceeding  is
          asserted or  instituted  by any Person  other than the parties to this
          Agreement  or their  Affiliates  which  could give rise to Damages for
          which an  Indemnifying  Party could be liable to an Indemnified  Party
          under this Agreement (such claim, demand or Proceeding, a "Third Party
                                                                     -----------
          Claim") or (ii) any Indemnified  Party under this
          -----

                                       63


<PAGE>


          Agreement  shall have a claim to be  indemnified  by any  Indemnifying
          Party under this Agreement  which does not involve a Third Party Claim
          (such  claim,  a "Direct  Claim"),  the  Indemnified  Party shall with
                            -------------
          reasonable  promptness send to the Indemnifying Party a written notice
          specifying  the nature of such  claim,  demand or  Proceeding  and the
          amount or estimated  amount thereof (which amount or estimated  amount
          shall not be conclusive  of the final  amount,  if any, of such claim,
          demand or  Proceeding)  (a "Claim  Notice"),  provided that a delay in
                                      -------------
          notifying the  Indemnifying  Party shall not relieve the  Indemnifying
          Party of its  obligations  under this  Agreement  except to the extent
          that (and only to the extent that) such failure  shall have caused the
          Damages for which  Indemnifying  Party is obligated to be greater than
          such  Damages  would  have been had the  Indemnified  Party  given the
          Indemnifying Party proper notice.

               (2) In the event of a Third Party Claim, the  Indemnifying  Party
          shall be  entitled  to  appoint  counsel of the  Indemnifying  Party's
          choice at the  expense  of the  Indemnifying  Party to  represent  the
          Indemnified Party and any others the Indemnifying Party may reasonably
          designate in  connection  with such claim,  demand or  Proceeding  (in
          which case the Indemnifying  Party shall not thereafter be responsible
          for the fees and  expenses  of any  separate  counsel  retained by any
          Indemnified  Party  except as set  forth  below);  provided  that such
                                                             --------
          counsel  is   reasonably   acceptable   to  the   Indemnified   Party.
          Notwithstanding an Indemnifying Party's election to appoint counsel to
          represent an Indemnified Party in connection with a Third Party Claim,
          an Indemnified  Party shall have the right to employ separate counsel,
          and the  Indemnifying  Party shall bear the reasonable fees, costs and
          expenses of such separate  counsel if (i) the use of counsel  selected
          by the  Indemnifying  Party to represent the  Indemnified  Party would
          present  such  counsel  with  a  conflict  of  interest  or  (ii)  the
          Indemnifying  Party shall not have  employed  counsel to represent the
          Indemnified  Party  within  a  reasonable  time  after  notice  of the
          institution   of  such  Third  Party   Claim.   If  requested  by  the
          Indemnifying Party, the Indemnified Party agrees to cooperate with the
          Indemnifying Party and its counsel in contesting any claim,  demand or
          Proceeding  which the Indemnifying  Party defends,  or, if appropriate
          and related to the claim, demand or Proceeding in question,  in making
          any  counterclaim  against the Person asserting the Third Party Claim,
          or any cross-complaint against any Person. No Third Party Claim may be
          settled or compromised (i) by the Indemnified  Party without the prior
          written consent of the Indemnifying  Party, which consent shall not be
          unreasonably  withheld  or delayed or (ii) by the  Indemnifying  Party
          without the prior  written  consent of the  Indemnified  Party,  which
          consent shall not be  unreasonably  withheld or delayed.  In the event
          any Indemnified  Party settles or compromises or consents to the entry
          of any  Judgment  with  respect to any Third Party  Claim  without the
          prior written  consent of the  Indemnifying  Party,  each  Indemnified
          Party  shall  be  deemed  to  have


                                       64


<PAGE>


          waived all rights against the Indemnifying  Party for  indemnification
          under this Article IX.

               (3) In the event of a Direct Claim, the Indemnifying  Party shall
          notify the  Indemnified  Party within 30 Business Days of receipt of a
          Claim  Notice  whether or not the  Indemnifying  Party  disputes  such
          claim.

               (4) From and after the  delivery  of a Claim  Notice  under  this
          Agreement,  at the reasonable request of the Indemnifying  Party, each
          Indemnified   Party  shall  grant  the  Indemnifying   Party  and  its
          representatives  all  reasonable  access  to the  books,  records  and
          properties of such Indemnified Party to the extent reasonably  related
          to the  matters to which the Claim  Notice  relates.  All such  access
          shall be granted  during  normal  business  hours and shall be granted
          under  conditions  which  will  not  unreasonably  interfere  with the
          business and operations of such  Indemnified  Party.  The Indemnifying
          Party will not, and shall require that its representatives do not, use
          (except in connection with such Claim Notice) or disclose to any third
          Person other than the Indemnifying Party's  representatives (except as
          may be required by applicable Law) any information  obtained  pursuant
          to this Section  9.03(d)  which is designated  as  confidential  by an
          Indemnified Party.

          IX.4   Survival.   Except  for  the  representations,  warranties  and
                 --------
covenants set forth in Sections 3.02,  3.07,  4.04, 4.07, 4.08 (but only as they
pertain to events occurring between June 6, 1996, and the Closing),  4.11, 4.13,
4.14, 4.15, and 6.01, none of the  representations and warranties of the Seller,
and none of Seller's  covenants  which are to be performed prior to the Closing,
shall survive the Closing.  The  representations and warranties of the Seller in
Section 4.07 shall  survive the Closing and shall expire on the  applicable  Tax
Statute of Limitations Date; and the  representations,  warranties and covenants
of Seller in Sections 3.02,  3.07, 4.04, 4.11 and 4.15 shall survive the Closing
for two years, the  representations  and warranties of Seller in Section 4.08 as
they pertain to events  occurring  between June 6, 1996,  and the Closing  shall
survive the Closing for 18 months,  and those set forth in Sections  4.13,  4.14
and 6.01 shall survive the Closing for one year. All representations, warranties
and   covenants   made  by  the  Purchaser   shall   survive  the  Closing.   No
indemnification with respect to any representation,  warranty, or covenant shall
be owed by Seller on any claims made after the relevant expiration date thereof.

          IX.5    Indemnification    Limitation.    Seller's   obligation     to
                  -----------------------------
indemnify Purchaser as provided in Section 9.02 shall not become effective until
the  aggregate  of all such claims  shall have  exceeded  $10,000,000;  provided
further that any Purchase Price  Adjustments to be made pursuant to Section 2.07
shall not be subject to this $10,000,000 threshold.

          IX.6     Excluded   Proceeding.   Seller  shall  indemnify  and   hold
                   ---------------------
harmless  Purchaser  and its Affiliates  from and against Damages resulting from
the Excluded Proceeding.


                                       65


<PAGE>


                                    ARTICLE X
                               GENERAL PROVISIONS
                               ------------------

          X.1   Expenses and Taxes; Tax Returns.
                -------------------------------

               (1) Each party to this Agreement  shall pay all fees and expenses
          incurred by it in connection with this Agreement and the  transactions
          contemplated  by this  Agreement.  The parties to this Agreement agree
          that all applicable  excise,  sales,  transfer,  documentary,  filing,
          recordation and other similar Taxes,  levies, fees and charges, if any
          (including all real estate transfer taxes and conveyance and recording
          fees,  if any, but excluding  Seller's  income taxes and any franchise
          taxes  arising as a result of the  transactions  contemplated  by this
          Agreement)  that may be imposed  upon,  or payable or  collectible  or
          incurred in  connection  with,  this  Agreement  and the  transactions
          contemplated by this Agreement shall be borne by Purchaser. Each party
          to  this  Agreement   agrees  to  file  all  necessary   documentation
          (including  all Tax  Returns)  with  respect to such Taxes in a timely
          manner.

               (2) Seller shall timely file (taking into account any  extensions
          received from the relevant Tax authorities) all Tax Returns accurately
          reflecting  the  operations  of the Company and its  Subsidiaries  for
          periods  ending prior to the Closing Date and shall pay all Taxes with
          respect thereto.  Purchaser shall timely file (taking into account any
          extensions received from the relevant Tax authorities) all Tax Returns
          accurately   reflecting   the   operations  of  the  Company  and  its
          Subsidiaries for periods ending on or after the Closing Date and shall
          pay all Taxes with respect thereto.  For any period that begins before
          and ends after the  Closing  Date,  the Taxes  required to be shown on
          such Tax Returns  shall be  apportioned  between  Purchaser and Seller
          based on an interim closing of the books except that real and personal
          property taxes, franchise taxes and other items of expense that accrue
          ratably  over the  period  in  question  shall be  apportioned  to the
          portion of such  period  that ends at  midnight  of the day before the
          Closing Date and to the portion of the period that ends  thereafter on
          a per  diem  basis;  provided,  however,  that  any  state  income  or
          franchise taxes arising as a result of the transaction contemplated by
          this Agreement shall be borne entirely by Seller. Seller shall forward
          any tax returns or tax bills immediately upon receipt. Purchaser shall
          promptly  notify Seller upon the receipt of any Tax statement or other
          notice of Tax due for any period for which  Purchaser  is  required to
          file Tax Returns and pay Taxes under this Section 10.01(b).  Purchaser
          shall be entitled to reimbursement  from Seller,  and Seller shall pay
          to  Purchaser  within  ten (10) days  after  receipt  of  notice  from
          Purchaser,  the  portions of any such Taxes which are


                                       66


<PAGE>


          apportioned  to Seller or for which  Seller has  responsibility  under
          Section 9.02 or this Section 10.01(b).

               (3) Seller shall be responsible for all Taxes owed by the Company
          and its  Subsidiaries  with  respect  to its  operations  prior to the
          Closing Date.

          X.2   Amendment.   This Agreement  may  not  be amended  except by  an
                ---------
instrument  in writing  signed by  Purchaser  and  Seller.  Notwithstanding  the
foregoing,  Seller  acknowledges and agrees that Purchaser may assign its rights
to purchase the Membership Interests and its obligations under this Agreement to
one or more  wholly  owned  subsidiaries  of  Purchaser;  provided  that no such
                                                          --------
assignment shall relieve Purchaser of its obligations under this Agreement.

          X.3   Waiver.   Either  Purchaser or  Seller may (a)  extend the  time
                ------
for the  performance of any of the  obligations or other acts of the other,  (b)
waive  any  inaccuracies  in the  representations  and  warranties  of the other
contained in this  Agreement or in any document  delivered by the other pursuant
to this  Agreement  or (c)  waive  compliance  with  any of the  agreements,  or
satisfaction of any of the conditions, contained in this Agreement by the other.
Any agreement on the part of a party to this  Agreement to any such extension or
waiver shall be valid only if set forth in an  instrument  in writing  signed by
the party against whom enforcement is sought.

          X.4   Notices.   Any  notices or  other  communications  required   or
                -------
permitted  under,  or otherwise in connection  with,  this Agreement shall be in
writing and shall be deemed to have been duly given when  delivered in person or
upon  confirmation of receipt when  transmitted by facsimile  transmission or on
receipt  after  dispatch by  registered  or  certified  mail,  postage  prepaid,
addressed, as follows:


                If to Seller:

                     Tejas Gas, LLC
                     1301 McKinney Street, Suite 700
                     Houston, Texas 77010
                     Attn:  Rene Joyce
                     Phone: (713) 230-3000
                     Fax:   (713) 230-2900

                With a copy to:

                     Tejas Energy, LLC
                     1301 McKinney Street, Suite 700
                     Houston, TX 77010
                     Attn: General Counsel


                                       67


<PAGE>


                     Phone: (713) 230-3000
                     Fax:   (713) 230-2900

                If to Purchaser to:

                     Enogex Inc.
                     515 Central Park Drive, Suite 600
                     Oklahoma City, OK 73105
                     Attention:  General Counsel
                     Phone: (405) 525-7788
                     Fax:   (405) 558-4642

                With a copy to:

                     Enogex Inc.
                     515 Central Park Drive, Suite 600
                     Oklahoma City, OK 73105
                     Attention: Vice President Business Development
                     Phone: (405) 525-7788
                     Fax:   (405) 558-4618

or such other  address as the person to whom notice is to be given has furnished
in writing  to the other  parties.  A notice of change in  address  shall not be
deemed to have been given until received by the addressee.

          X.5   Headings  and  Schedules.   The  descriptive  headings  of   the
                ------------------------
Articles and Sections of this Agreement are inserted for convenience only and do
not  constitute a part of this  Agreement.  The  disclosure  or inclusion of any
matter or item on any schedule to the Disclosure  Memorandum shall not be deemed
an  acknowledgment  or admission  that any such matter or item is required to be
disclosed or is material for purposes of the  representations and warranties set
forth in this  Agreement.  Any disclosure made for purposes of, and included in,
any to the Disclosure Memorandum shall be deemed made and disclosed to Purchaser
for purposes of all representations and warranties made in this Agreement.

          X.6   Applicable  Law.   This  Agreement  shall  be  governed  by  and
                ---------------
construed in  accordance  with the  laws of the  State of  Texas  regardless  of
principles of conflicts of laws.

          X.7   No Third Party Rights.   Except  as  specifically  provided   in
                ---------------------
Article  IX,  this  Agreement  is  intended  to be solely for the benefit of the
parties to this  Agreement  and is not intended to confer any benefits  upon, or
create  any  rights in favor of,  any  Person  other  than the  parties  to this
Agreement.


                                       68


<PAGE>


          X.8   Counterparts.   This  Agreement  may be  executed in  any number
                ------------
of  counterparts,  each of which shall be deemed an  original,  but all of which
together shall constitute a single instrument.

          X.9   Severability.   If  any  provision of this  Agreement  shall  be
                ------------
held invalid, illegal or unenforceable, the validity, legality or enforceability
of the other  provisions of this Agreement  shall not be affected  thereby,  and
there shall be deemed  substituted for the provision at issue a valid, legal and
enforceable provision as similar as possible to the provision at issue.

          X.10  Entire  Agreement.   This  Agreement  (including  the  documents
                -----------------
and   instruments   referred  to  in  this  Agreement)  sets  forth  the  entire
understanding  and agreement among the parties as to the matters covered in this
Agreement  and  supersedes  and replaces any prior  understanding,  agreement or
statement of intent, in each case, written or oral, of any and every nature with
respect  to  such   understanding,   agreement  or  statement   other  than  the
Confidentiality Agreement.

          X.11   Arbitration; Waiver.
                 -------------------

               (1) Except as provided in Section 2.07, any controversy or claim,
          whether based on contract,  tort,  statute or other legal or equitable
          theory   (including   but  not   limited   to  any   claim  of  fraud,
          misrepresentation or fraudulent inducement or any question of validity
          or effect of this Agreement  including this clause)  arising out of or
          related to this Agreement (including any amendments or extensions), or
          the breach of termination  hereof or any right to indemnity  hereunder
          shall be settled by  arbitration  in accordance  with the then current
          CPR  Institute  for  Dispute  Resolution  Rules  for  Non-Administered
          Arbitration of Business Disputes, and this provision.  The arbitration
          shall be  governed by  the  United  States  Arbitration  Act, 9 U.S.C.
          1-16,  to the  exclusion of any  provision  of state law  inconsistent
          therewith or which would produce a different result, and judgment upon
          the award  rendered  by the  arbitrator  may be  entered  by any court
          having  jurisdiction.  The arbitration shall be held in Harris County,
          Texas.  There shall be one arbitrator.  The arbitrator shall determine
          the claims of the parties and render a final award in accordance  with
          the  substantive  law of the State of Texas,  excluding  the conflicts
          provisions  of such law. The  arbitrator  shall not be precluded  from
          granting   injunctive   relief  if  it   determines   such  relief  is
          appropriate.  The arbitrator shall set forth the reasons for the award
          in writing.

               (2) Without in any way  limiting  Section  10.11(a),  each of the
          parties hereto hereby irrevocably waives all right to trial by jury in
          any action,  proceeding or  counterclaim  (whether  based on contract,
          tort or otherwise) arising out of or relating to this Agreement or the
          actions of any of them in the negotiation, administration, performance
          and enforcement thereof.


                                       69


<PAGE>


          X.12   Fair  Construction.   This  Agreement  shall  be  deemed  to be
                 ------------------
the joint  work  product  of the  Purchaser  and  Seller  without  regard to the
identity of the draftsperson, and any rule of construction that a document shall
be interpreted or construed against the drafting party shall not be applicable.

          X.13   Forwarding   Notices.   If  Seller  or  any  of  the   Seller's
                 --------------------
Affiliates  receives on or after the Closing  any notice  concerning  any matter
(including,  without limitation, any tax matter) relating to the business of the
Company  or its  Subsidiaries,  Seller or  Seller's  Affiliates  shall  promptly
provide such notice to the Company or its Subsidiaries. If either the Purchaser,
the  Company or any of its  Subsidiaries  receives  on or after the  Closing any
notice  concerning any matter relating to a pre-Closing  event or any matter for
which Seller may have any liability under the terms of this Agreement (including
Taxes relating to the period prior to the Closing and Seller's  representations,
warranties  and covenants  which  survive the Closing),  Purchaser or such other
recipient, as applicable, shall promptly provide such notice to Seller.

          Each of  the  parties  to this  Agreement has  caused  this  Agreement
to be executed on its behalf by its duly authorized officer, all  as of the  day
and year first above written.

                                         TEJAS GAS, LLC


                                         By:    ________________________________
                                         Title: ________________________________

                                         ENOGEX INC.


                                         By:    ________________________________
                                         Title: ________________________________


                                       70


<PAGE>


                                    EXHIBIT A
                                    ---------
                               KNOWLEDGE OF SELLER
                               -------------------


Rene Joyce
Glenn Powell
Robert Firth
John Raber
Al Schmit
Robert Belknap
Steve Winston
Pam Ibbetson
John Kaiser
Mike Palmer
Bruce Roderick
James Street


                                       71


<PAGE>


                                    EXHIBIT B
                                    ---------
                             KNOWLEDGE OF PURCHASER
                             ----------------------


Dave Kurtz
Stan Wilson
Steve Pittenger
Kelly Smelser
Trish Horn
Roger Brown
Jean Leger
Keith Mitchell
John McMillin
Mary Ann McMichael
Danny Harris


                                       72


<PAGE>


                                    EXHIBIT C
                                    ---------

             BILL OF SALE AND ASSIGNMENT OF MEMBERSHIP INTERESTS OF
             ------------------------------------------------------
                                 TEJAS GAS, LLC
                                 --------------


          This   Bill  of  Sale  and   Assignment   of   Membership    Interests
("Bill of Sale"), dated _______________, 1999, is by and between Tejas Gas, LLC,
a Delaware limited  liability company  ("Seller"),  and Enogex Inc., an Oklahoma
corporation  ("Purchaser").  This Bill of Sale is being entered into pursuant to
and in accordance  with the terms and conditions of Section 2.04 of the Purchase
Agreement, dated as of May 14, 1999; between Seller and Purchaser (the "Purchase
Agreement").  Capitalized  terms used but not otherwise  defined in this Bill of
Sale shall have the same meanings as set forth in the Purchase Agreement.

          In   consideration  of  the  payment  by  Purchaser  to  Seller in the
amount  of  $___________  and for other  good and  valuable  consideration,  the
receipt and sufficiency of which are hereby acknowledged,  Seller,  intending to
be legally  bound,  does hereby sell,  transfer,  convey,  assign and deliver to
Purchaser,  as of the Closing Date, free and clear of all Liens, all of Seller=s
right,  title and interest in and to all of the  Membership  Interests  owned by
Seller.

          From  time  to  time  after  the  date  of this  Bill of Sale, Seller,
without further consideration but at Purchaser's expense, will execute,  deliver
and  record  or  cause  to  be  executed,  delivered  and  recorded  such  other
instruments of conveyance,  assignment, transfer and delivery and will take such
other actions as Purchaser may reasonably  request in order to more  effectively
transfer,  convey,  assign and deliver to Purchaser,  and to place  Purchaser in
possession and control of the Membership  Interests  previously owned by Seller,
or to enable Purchaser to exercise and enjoy all rights and benefits of Seller's
Membership Interests in Tejas Transok Holding, LLC.

          This   Bill  of  Sale   shall   be   governed   by  and  construed  in
accordance with the laws of the State of Texas.


TEJAS GAS, LLC                             ENOGEX INC.


By:_______________________________         By:______________________________
         Name:                                        Name:
         Title:                                       Title:


                                       73


<PAGE>
<TABLE>


                                    EXHIBIT D
                                    ---------
                          ALLOCATION OF PURCHASE PRICE
                          ----------------------------

<CAPTION>
Asset                   % of Purchase Price             Asset Class IRC 1060
- -----                   -------------------             --------------------
<S>                            <C>                              <C>
Tangibles 15 year                8.0                            III

Tangibles 9 year                55.0                            III

Tangibles 4 year                34.7                            III

Tangibles 3 year                 0.3                            III

Cushion Gas                      2.0                            III

       Total                    100%
</TABLE>


                                       74


<PAGE>


                                    EXHIBIT E
                                    ---------
                                    GUARANTY
                                    --------


This  guaranty  ("Guaranty")  dated as of  __________,  1999, is entered into by
_________, a _______ corporation ("Guarantor"), in favor of Tejas Energy, LLC, a
Delaware limited liability company ("Counterparty").

                                    RECITALS:
                                    --------
         A. Transok, LLC ("Guaranteed Party") and Counterparty have entered into
an ISDA Master  Agreement,  dated as of April 1, 1999, and related  Transok Swap
Transaction (as defined in that certain Purchase Agreement,  dated as of May 14,
1999, between Tejas Gas, LLC and Enogex Inc. (such ISDA Master Agreement, as the
same  may  from  time to  time be  modified,  amended,  supplemented,  replaced,
renewed,   or  extended  shall  be  referred  to  herein   collectively  as  the
"Agreement").

         B.  Guaranteed  Party  is a  subsidiary  or affiliate of  Guarantor and
Guarantor  will  directly  or  indirectly  benefit from  the  Agreement  between
Counterparty and Guaranteed Party;


1.  GUARANTY.  Subject  to the terms and  conditions  hereof,  Guarantor  hereby
    --------
irrevocably  and  unconditionally  guarantees the timely payment when due of the
payment  obligations of Guaranteed Party to Counterparty  under the Transok Swap
Transaction and the Agreement (the "Obligations"). To the extent that Guaranteed
Party  shall  fail  to pay  any  Obligation,  Guarantor  shall  promptly  pay to
Counterparty  the amount due.  This  Guaranty  shall  constitute  a guarantee of
payment and not of collection.

2.  LIMITATIONS.  Guarantor's  liability  for  Obligations  or other  costs  and
    -----------
expenses  under this Guaranty is limited in the aggregate to US $50 million (the
"Guaranty  Cap").  Guarantor  will not be  obligated  to  monitor  the amount of
Guaranteed Party's  Obligations to Counterparty,  and Counterparty will bear the
risk that the aggregate  amount of the Obligations  exceeds the Guaranty Cap. IN
NO EVENT SHALL  GUARANTOR  BE SUBJECT  HEREUNDER  TO  CONSEQUENTIAL,  EXEMPLARY,
EQUITABLE, LOSS OF PROFITS, PUNITIVE, OR ANY OTHER DAMAGES, EXCEPT TO THE EXTENT
SPECIFICALLY PROVIDED IN THE TRANSOK SWAP TRANSACTION OR THE AGREEMENT TO BE DUE
FROM  GUARANTEED  PARTY.  Guarantor  reserves the right to assert defenses which
Guaranteed  Party may have to payment  of any  Obligation  under the  Agreement,
other than defenses  arising from the bankruptcy,  insolvency,  dissolution,  or
liquidation of Guaranteed Party and other defenses expressly waived herein.


                                       75


<PAGE>


3.  TERM. This Guaranty shall remain in full force and effect until December 31,
    ----
2000.  Termination shall not affect,  release or discharge Guarantor's liability
with  respect to any  Obligations  existing or arising  under the  Transok  Swap
Transaction and/or the Agreement prior to the date of termination.

4. NATURE OF GUARANTY. The Guarantor's obligations hereunder with respect to any
   ------------------
Obligation  shall not be  limited,  diminished,  or  otherwise  affected  by the
existence,  validity,  enforceability,  perfection,  release,  or  extent of any
collateral for such Obligations. Counterparty shall not be obligated to file any
claim relating to the Obligations owing to it in the event that Guaranteed Party
becomes subject to a bankruptcy,  reorganization, or similar proceeding, and the
failure of Counterparty to so file shall not affect the Guarantor's  obligations
hereunder.  In the event  that any  payment  to  Counterparty  in respect to any
Obligations   is  rescinded  or  must  otherwise  be  returned  for  any  reason
whatsoever,  the  Guarantor  shall  remain  liable  hereunder in respect to such
Obligations as if such payment had not been made.

5. REPRESENTATIONS AND WARRANTIES. Guarantor represents and warrants that (a) it
   ------------------------------
is duly  organized and validly  existing under the laws of the  jurisdiction  in
which it was organized and has the power and authority to execute,  deliver, and
perform this Guaranty; (b) no authorization,  approval,  consent or order of, or
registration  or  filing  with,  any  court or other  governmental  body  having
jurisdiction  over  Guarantor  is  required  on the  part of  Guarantor  for the
execution and delivery of this  Guaranty;  and (c) this  Guaranty  constitutes a
valid and legally  binding  agreement of Guarantor,  and is enforceable  against
Guarantor,  except as the  enforceability of this Guaranty may be limited by the
effect of any applicable bankruptcy, insolvency,  reorganization,  moratorium or
similar laws affecting  creditor's rights generally and by general principles of
equity.

6.  SUBROGATION.  Guarantor  waives its right to be  subrogated to the rights of
    -----------
Counterparty  with  respect  to any  Obligations  paid by  Guarantor  until  all
Obligations have been fully and indefeasibly paid to Counterparty, subject to no
rescission  or right  of  return,  and  Guarantor  has  fully  and  indefeasibly
satisfied all of Guarantor's obligations under this Guaranty. Upon such payment,
Guarantor  shall be  subrogated  to the rights of the  Counterparty  against the
Guaranteed  Party.  The  Conterparty  agrees  to take such  reasonable  steps as
Guarantor may request to implement such subrogation.

7.  WAIVERS. Guarantor  hereby waives (a) notice of acceptance of this Guaranty;
    -------
(b)  presentment  and demand  concerning the  liabilities of Guarantor;  (c) any
right to require that any action or  proceeding  be brought  against  Guaranteed
Party or any other person,  or to require that  Counterparty seek enforcement of
any  performance  against  Guaranteed  Party or any other  person,  prior to any
action against  Guarantor under the terms hereof;  (d) notice of the amounts and
terms  of any  swap,  option  or  other  financially  settled  transaction  with
Guaranteed Party or of any modifications,  renewals, replacements, or extensions
thereof; (e) notice of any extension of time for the payment of any sums due and
payable  to  Counterparty  ; (f)  with  respect  to any  notes or  evidences  of
indebtedness   received  by  Counterparty  from  Guaranteed  Party,   notice  of


                                       76


<PAGE>


presentment,  demand for payment,  protest, or notice of protest; and (g) notice
of any dishonor or default by, or disputes with,  Guaranteed Party. Except as to
applicable statutes of limitation,  no delay of Counterparty in the exercise of,
or failure to exercise,  any rights  hereunder shall operate as a waiver of such
rights,  a waiver  of any  other  rights,  or a release  of  Guarantor  from any
obligations hereunder.

8. NOTICE. Any demand,  notice,  request,  instruction,  correspondence or other
   ------
document to be given hereunder (herein collectively called "Notice") shall be in
writing and delivered  personally or mailed by certified  mail,  postage prepaid
and return receipt requested,  or by facsimile,  to Guarantor or to Counterparty
at their respective addresses set forth below. Notice given by personal delivery
or mail shall be effective upon actual receipt.  Notice given by facsimile shall
be  effective  upon actual  receipt if received  during the  recipient's  normal
business hours,  or at the beginning of the recipient's  next Business Day after
receipt if not received during the recipient's  normal business hours. Any party
may  change any  address to which  Notice is to be given to such party by giving
Notice thereof as provided above.

9.  MISCELLANEOUS.  No term or  provision  of this  Guaranty  shall be  amended,
    -------------
modified,  altered,  waived,  or supplemented  except in a writing signed by the
party against whom  enforcement  is sought.  This  Guaranty  embodies the entire
agreement of the parties, and supersedes all prior agreements and understandings
of the parties,  with respect to the subject matter hereof.  This Guaranty shall
be binding upon  Guarantor,  its  successors  and assigns and shall inure to the
benefit of and be enforceable by Counterparty,  its successors and assigns. THIS
GUARANTY SHALL BE IN ALL RESPECTS GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH,
THE LAWS OF THE STATE OF TEXAS,  WITHOUT  REGARD TO  PRINCIPLES  OF CONFLICTS OF
LAWS.

                                      [GUARANTOR]


                                      By:___________________________________
                                      Name:_________________________________
                                      Title:________________________________

ADDRESS FOR NOTICES:

COUNTERPARTY:                         GUARANTOR:
Tejas Energy, LLC                     ______________________________________
1301 McKinney, Suite 700              ______________________________________
Houston, Texas 77010                  ______________________________________
Attn: Chief Financial Officer         Attn:_________________________________
Fax No.: (713) 230-7580               Fax No.:______________________________


                                       77


<PAGE>


                                    EXHIBIT F
                                    ---------
                           WAIVER OF REQUIRED CONSENTS
                           ---------------------------






Enogex Inc.
600 Central Park Two
515 Central Park Drive
Oklahoma City, OK   73105

         Re:      Purchase Agreement Dated as of May 14, 1999 (the "Agreement"),
                  by and  between  Tejas Gas,  LLC  ("Seller")  and  Enogex Inc.
                  ("Purchaser")

Gentlemen:

          Shell Oil Company hereby  consents to Purchaser's acquisition of Tejas
Transok Holding, LLC, and certain of its subsidiaries  ("Transok"),  from Seller
and hereby  waives any and all rights  that Shell Oil  Company  has to  purchase
Transok.

                                      Sincerely yours,

                                      SHELL OIL COMPANY


                                      By:___________________________________


                                       78

<TABLE> <S> <C>



<ARTICLE>                     UT
<LEGEND>
This schedule  contains  summary  financial  information  extracted from the OGE
Energy Corp.  Consolidated  Statements of Income, Balance Sheets, and Statements
of Cash Flows as reported on Form 10-Q as of  June 30, 1999 and is  qualified in
its entirety by reference to such Form 10-Q.
</LEGEND>
<MULTIPLIER>                                     1,000

<S>                                        <C>
<PERIOD-TYPE>                              6-MOS
<FISCAL-YEAR-END>                          JUN-30-1999
<PERIOD-END>                               JUN-30-1999
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    2,537,065
<OTHER-PROPERTY-AND-INVEST>                     61,010
<TOTAL-CURRENT-ASSETS>                         368,936
<TOTAL-DEFERRED-CHARGES>                       121,650
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                               3,088,661
<COMMON>                                           778
<CAPITAL-SURPLUS-PAID-IN>                      434,876
<RETAINED-EARNINGS>                            526,906
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 962,560
                                0
                                          0
<LONG-TERM-DEBT-NET>                           934,650
<SHORT-TERM-NOTES>                                   0
<LONG-TERM-NOTES-PAYABLE>                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                 298,800
<LONG-TERM-DEBT-CURRENT-PORT>                    2,000
                            0
<CAPITAL-LEASE-OBLIGATIONS>                     10,560
<LEASES-CURRENT>                                 3,126
<OTHER-ITEMS-CAPITAL-AND-LIAB>                 876,965
<TOT-CAPITALIZATION-AND-LIAB>                3,088,661
<GROSS-OPERATING-REVENUE>                      829,066
<INCOME-TAX-EXPENSE>                            23,320
<OTHER-OPERATING-EXPENSES>                     721,844
<TOTAL-OPERATING-EXPENSES>                     721,844
<OPERATING-INCOME-LOSS>                        107,222
<OTHER-INCOME-NET>                               2,546
<INCOME-BEFORE-INTEREST-EXPEN>                 109,768
<TOTAL-INTEREST-EXPENSE>                        37,572
<NET-INCOME>                                    48,876
                          0
<EARNINGS-AVAILABLE-FOR-COMM>                   48,876
<COMMON-STOCK-DIVIDENDS>                        51,737
<TOTAL-INTEREST-ON-BONDS>                       30,218
<CASH-FLOW-OPERATIONS>                          64,051
<EPS-BASIC>                                     0.63
<EPS-DILUTED>                                     0.63


</TABLE>


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