EXHIBIT 2.1

                          AGREEMENT AND PLAN OF MERGER

                                      among

                           CANAAN ENERGY CORPORATION,

                              CHK ACQUISITION, INC.

                                       and

                          CHESAPEAKE ENERGY CORPORATION


                           COMMERCIAL LAW GROUP, P.C.
                             ATTORNEYS & COUNSELORS
   2725 Oklahoma Tower . 210 Park Avenue . Oklahoma City, Oklahoma 73102-5604
              Telephone (405) 232-3001 . Telecopier (405) 232-5553



                                TABLE OF CONTENTS
                                -----------------


                                                                 
1.  Definitions ..................................................   1
    1.1    Affiliate(s) ..........................................   1
    1.2    Agreement .............................................   2
    1.3    Alternative Proposal ..................................   2
    1.4    Bank Credit Agreement .................................   2
    1.5    Canaan ................................................   2
    1.6    Canaan Area ...........................................   2
    1.7    Canaan Certificate ....................................   2
    1.8    Canaan Common Stock ...................................   2
    1.9    Canaan Disclosure Schedule ............................   2
    1.10   Canaan Employee(s) ....................................   2
    1.11   Canaan Employee Benefit Plans .........................   2
    1.12   Canaan Financial Statements ...........................   2
    1.13   Canaan Material Agreements ............................   2
    1.14   Canaan Permits ........................................   2
    1.15   Canaan Plans ..........................................   2
    1.16   Canaan Predecessor ....................................   2
    1.17   Canaan Representative .................................   3
    1.18   Canaan Rights .........................................   3
    1.19   Canaan Rights Agreement ...............................   3
    1.20   Canaan SEC Documents ..................................   3
    1.21   Canaan Severance Policy ...............................   3
    1.22   Canaan Specified Stockholders .........................   3
    1.23   Canaan Stock Option(s) ................................   3
    1.24   Canaan Stockholder Meeting ............................   3
    1.25   Canaan Termination Fee ................................   3
    1.26   CERCLA ................................................   3
    1.27   Certificate of Merger .................................   3
    1.28   Closing ...............................................   3
    1.29   Closing Date ..........................................   3
    1.30   COBRA .................................................   3
    1.31   Code ..................................................   4
    1.32   Confidentiality Agreement .............................   4
    1.33   Contract Employee .....................................   4
    1.34   Defensible Title ......................................   4
    1.35   Dissenting Stockholders ...............................   4
    1.36   Effective Time ........................................   4
    1.37   Environmental Law .....................................   4
    1.38   ERISA .................................................   4
    1.39   Exchange Act ..........................................   4
    1.40   Exchange Agent ........................................   4
    1.41   Exchange Fund .........................................   4
    1.42   GAAP ..................................................   4
    1.43   Goodwill Protection Agreement .........................   5


                                       -i-




                                                                                     
    1.44  Governmental Authority ......................................................  5
    1.45  Hazardous Material ..........................................................  5
    1.46  HSR Act .....................................................................  5
    1.47  Hydrocarbons ................................................................  5
    1.48  Indemnified Parties .........................................................  5
    1.49  Irrevocable Proxy ...........................................................  5
    1.50  Lien(s) .....................................................................  5
    1.51  Material Adverse Effect .....................................................  5
    1.52  Merger ......................................................................  6
    1.53  Merger Consideration ........................................................  6
    1.54  Net Revenue Interests .......................................................  6
    1.55  Office Space Agreement ......................................................  6
    1.56  OGCA ........................................................................  6
    1.57  Oil and Gas Interests .......................................................  6
    1.58  Ownership Interests .........................................................  7
    1.59  Parent ......................................................................  7
    1.60  Parent Companies ............................................................  7
    1.61  Parent Representative .......................................................  7
    1.62  Parent Subsidiaries .........................................................  7
    1.63  Parties .....................................................................  7
    1.64  Payout Balance ..............................................................  7
    1.65  Permitted Encumbrances ......................................................  7
    1.66  Per Share Merger Consideration ..............................................  8
    1.67  Person(s) ...................................................................  8
    1.68  Proxy Statement .............................................................  8
    1.69  Returns .....................................................................  8
    1.70  SEC .........................................................................  8
    1.71  Securities Act ..............................................................  8
    1.72  Sub .........................................................................  8
    1.73  Sub Common Stock ............................................................  8
    1.74  Superior Proposal ...........................................................  8
    1.75  Surviving Corporation .......................................................  8
    1.76  Tax(es) .....................................................................  9
    1.77  Third-Party Consent .........................................................  9
    1.78  Transaction Documents .......................................................  9
    1.79  Working Interest ............................................................  9

2.  Consummation of the Merger ........................................................  9
    2.1   The Merger ..................................................................  9
    2.2   Effect of the Merger ........................................................  9
    2.3   Governing Instruments, Directors and Officers of the Surviving Corporation ..  9
          2.3.1  Certificate of Incorporation .........................................  9
          2.3.2  Bylaws ...............................................................  9
          2.3.3  Name ................................................................. 10
          2.3.4  Directors and Officers ............................................... 10
    2.4   Effect on Securities ........................................................ 10


                                      -ii-




                                                                          
          2.4.1    Sub Common Stock .......................................   10
          2.4.2    Canaan Common Stock ....................................   10
          2.4.3    Canaan Stock Options ...................................   10
          2.4.4    Treasury Stock and Parent Owned Stock ..................   11
          2.4.5    Dissenting Stockholder Shares ..........................   11
    2.5   Exchange of Certificates ........................................   12
          2.5.1    Exchange Fund ..........................................   12
          2.5.2    Notice and Surrender ...................................   12
          2.5.3    Full Satisfaction ......................................   13
          2.5.4    Unclaimed Exchange Fund ................................   13
          2.5.5    No Liability ...........................................   13
          2.5.6    Lost, Stolen or Destroyed Certificates .................   14
          2.5.7    Investment of Exchange Fund ............................   14
    2.6   Closing .........................................................   14
    2.7   Effective Time of the Merger ....................................   14
    2.8   Taking of Necessary or Further Action ...........................   14

3.  Canaan Representations and Warranties .................................   15
    3.1   Corporate Organization ..........................................   15
    3.2   Authority and Enforceability ....................................   15
    3.3   No Violations ...................................................   16
    3.4   Consents and Approvals ..........................................   16
    3.5   Canaan SEC Documents ............................................   16
    3.6   Financial Statements ............................................   17
    3.7   Capital Structure ...............................................   17
    3.8   Governmental Regulation .........................................   18
    3.9   Litigation ......................................................   18
    3.10  Brokers .........................................................   18
    3.11  Absence of Certain Changes or Events ............................   18
    3.12  Compliance with Laws, Material Agreements and Permits ...........   18
    3.13  No Restrictions .................................................   19
    3.14  Taxes ...........................................................   19
    3.15  Employee Benefit Plans ..........................................   21
    3.16  Environmental Matters ...........................................   23
    3.17  Vote Required ...................................................   24
    3.18  Canaan Board of Directors Actions ...............................   24
    3.19  Employment Contracts and Benefits ...............................   24
    3.20  Labor Matters ...................................................   24
    3.21  Insurance .......................................................   25
    3.22  Intangible Property .............................................   25
    3.23  Title to Assets .................................................   25
    3.24  Opinion of Financial Advisor ....................................   25
    3.25  Oil and Gas Operations ..........................................   26
    3.26  Financial and Commodity Hedging .................................   26
    3.27  Books and Records ...............................................   26
    3.28  Other Entities ..................................................   26


                                      -iii-




                                                                           
     3.29  Account Information..............................................  26
     3.30  Powers of Attorney...............................................  26
     3.31  Plugging Status..................................................  26
     3.32  No Knowledge of Breach of Representations........................  27
     3.33  Proxy Statement..................................................  27
     3.34  Equipment........................................................  27
     3.35  Current Commitments..............................................  27
     3.36  Payout Balances, Gas Imbalances and Take or Pay..................  27
     3.37  Full Disclosure..................................................  28
     3.38  Certain Agreements...............................................  28
     3.39  Affiliate Transactions...........................................  28

4.   Parent and Sub Representations and Warranties..........................  28
     4.1   Organization and Standing........................................  28
     4.2   Authority and Enforceability.....................................  28
     4.3   No Restriction...................................................  29
     4.4   Consents and Approvals...........................................  29
     4.5   Authorization....................................................  29
     4.6   Litigation.......................................................  29
     4.7   Broker's or Finder's Fees........................................  29
     4.8   Funding..........................................................  29
     4.9   Interim Operations of Sub........................................  30
     4.10  Proxy Statement..................................................  30
     4.11  No Knowledge of Breach of Representations........................  30
     4.12  Prior Purchases..................................................  30

5.   Covenants..............................................................  30
     5.1   Conduct of Canaan Business Pending Closing.......................  30
     5.2   Access to Information............................................  33
     5.3   No Solicitation..................................................  33
     5.4   Canaan Stockholder Meeting.......................................  35
     5.5   Proxy Statement..................................................  35
     5.6   Public Announcements.............................................  36
     5.7   Notification of Certain Matters..................................  36
     5.8   Indemnification..................................................  37
     5.9   Employee and Severance Matters...................................  38
     5.10  Reasonable Best Efforts..........................................  40
     5.11  Stock Options....................................................  41
     5.12  Stockholder Litigation...........................................  42
     5.13  Further Assurances...............................................  42
     5.14  Rights Agreement; Consequences if Rights Triggered...............  42
     5.15  Payment of Expenses..............................................  42
     5.16  Canaan Termination Fee...........................................  43
     5.17  Dissenting Stockholder Payments..................................  43
     5.18  Name.............................................................  43
     5.19  Related Agreements...............................................  43


                                      -iv-




                                                                               
6.   Conditions Precedent.......................................................  43
     6.1   Conditions to Each Party's Obligation to Effect the Merger...........  43
           6.1.1   Stockholder Approval.........................................  44
           6.1.2   Other Approvals..............................................  44
           6.1.3   No Injunctions or Restraints.................................  44
     6.2   Conditions to Obligations of Parent and Sub..........................  44
           6.2.1   Representations and Warranties...............................  44
           6.2.2   Performance of Covenants and Agreements by Canaan............  45
           6.2.3   No Adverse Change............................................  45
           6.2.4   Dissenting Stockholders......................................  45
           6.2.5   Releases.....................................................  45
           6.2.6   Opinion of Counsel...........................................  45
     6.3   Conditions to Obligation of Canaan...................................  45
           6.3.1   Representations and Warranties...............................  45
           6.3.2   Performance of Covenants and Agreements by Parent and Sub....  45

7.   Termination................................................................  46
     7.1   Termination Rights...................................................  46
           7.1.1   Mutual Consent...............................................  46
           7.1.2   Date Certain.................................................  46
           7.1.3   By Parent....................................................  46
           7.1.4   By Canaan....................................................  46
           7.1.5   Superior Proposal............................................  47
     7.2   Effect of Termination................................................  47

8.   Miscellaneous..............................................................  47
     8.1   Nonsurvival of Representations and Warranties........................  47
     8.2   Amendment............................................................  47
     8.3   Notices..............................................................  48
     8.4   Counterparts.........................................................  48
     8.5   Severability.........................................................  48
     8.6   Entire Agreement; No Third Party Beneficiaries.......................  49
     8.7   Applicable Law.......................................................  49
     8.8   No Remedy in Certain Circumstances...................................  49
     8.9   Enforcement of Agreement.............................................  49
     8.10  Assignment...........................................................  49
     8.11  Waivers..............................................................  50
     8.12  References and Titles................................................  50
     8.13  Incorporation........................................................  50


Exhibit "A" - Irrevocable Proxy
Exhibit "B" - Goodwill Protection Agreement
Exhibit "C" - Office Space Agreement
Exhibit "D" - Release
Exhibit "E" - Opinion

                                       -v-



                          AGREEMENT AND PLAN OF MERGER
                          ----------------------------

          THIS AGREEMENT AND PLAN OF MERGER is entered into effective the 19th
day of April, 2002, by and among CANAAN ENERGY CORPORATION, an Oklahoma
corporation ("Canaan"), CHK ACQUISITION, INC., an Oklahoma corporation ("Sub"),
and CHESAPEAKE ENERGY CORPORATION, an Oklahoma corporation ("Parent").

                              B A C K G R O U N D:

A.   The board of directors of each of Parent, Sub and Canaan has determined
that it is in the best interests of its respective stockholders to approve the
acquisition by Parent of Canaan by means of the merger of Sub with and into
Canaan, upon the terms and subject to the conditions set forth in this Agreement
and the applicable provisions of the OGCA;

B.   The board of directors of each of Parent, Sub and Canaan has unanimously
adopted resolutions approving the Merger, this Agreement and the transactions
contemplated hereby, and the board of directors of Canaan has unanimously agreed
to recommend that the stockholders of Canaan approve this Agreement, the Merger
and the transactions contemplated hereby;

C.   Parent, Sub and Canaan desire to make certain representations, warranties,
covenants and agreements in connection with the Merger and also to prescribe
various conditions to the Merger;

D.   Parent has advised Canaan and the Canaan Specified Stockholders that it
will not enter into this Agreement unless the Canaan Specified Stockholders
execute and deliver to Parent an Irrevocable Proxy in the form set forth in
Exhibit "A" attached hereto and made a part hereof;

E.   Parent has advised Canaan that Parent will not consummate this Agreement
unless Leo E. Woodard, John K. Penton and Michael S. Mewbourn execute and
deliver to Parent a Goodwill Protection Agreement in the form set forth in
Exhibit "B" attached hereto and made a part hereof; and

F.   Upon consummation of the Merger pursuant to this Agreement, all of the
issued and outstanding Canaan Common Stock and Canaan Stock Options will be
converted into the right to receive the Merger Consideration as determined in
accordance with the terms of this Agreement.

          NOW, THEREFORE, for and in consideration of the recitals and the
mutual covenants and agreements set forth in this Agreement, the Parties hereby
agree as follows:

1.   Definitions.  As used in this Agreement, each of the following terms has
     -----------
the meaning given in this paragraph or in the paragraphs referred to below:

     1.1  Affiliate(s). With respect to any Person, each other Person that
          -----------
          directly or indirectly (through one or more intermediaries or
          otherwise) controls, is controlled by, or is under common control with
          such Person.



     1.2   Agreement. This Agreement and Plan of Merger, as amended,
           ---------
           supplemented or modified from time to time.

     1.3   Alternative Proposal. As defined in paragraph 5.3.2 of this
           --------------------
           Agreement.

     1.4   Bank Credit Agreement. The Restated and Consolidated Agreement dated
           ---------------------
           October 23, 2000, by and among Canaan and a lending group led by Bank
           One, Oklahoma, N.A. as amended October 9, 2001 and November 21, 2001.

     1.5   Canaan. Canaan Energy Corporation, an Oklahoma corporation.
           ------

     1.6   Canaan Area. As defined in paragraph 5.1.10 of this Agreement.
           -----------

     1.7   Canaan Certificate. A certificate representing shares of Canaan
           ------------------
           Common Stock.

     1.8   Canaan Common Stock. Canaan's common stock, $0.01 par value per
           -------------------
           share.

     1.9   Canaan Disclosure Schedule. The disclosure schedule attached hereto
           --------------------------
           entitled the Canaan Disclosure Schedule and any documents listed on
           such disclosure schedule or expressly incorporated therein by
           reference.

     1.10  Canaan Employee(s). As defined in paragraph 5.9 of this Agreement.
           -----------------

     1.11  Canaan Employee Benefit Plans. As defined in paragraph 3.15 of this
           -----------------------------
           Agreement.

     1.12  Canaan Financial Statements. The audited and unaudited consolidated
           ---------------------------
           financial statements of Canaan (including the related notes) included
           (or incorporated by reference) in Canaan's Annual Report on Form 10-K
           for the year ended December 31, 2001, as filed with the SEC.

     1.13  Canaan Material Agreements. The: (1) Bank Credit Agreement; (2) the
           --------------------------
           Cedar Brush Prospect Agreement dated November 5, 2001, between Canaan
           and Union Gas Corporation, a Texas corporation; (3) all agreements or
           instruments filed with or listed in the Canaan SEC Documents as
           material contracts; and (4) any other written or oral agreements,
           contracts, commitments or understandings to which Canaan is a party,
           by which any of Canaan is directly or indirectly bound, or to which
           any asset of any of Canaan may be subject, involving total value,
           consideration or obligations in excess of One Million Dollars
           ($1,000,000.00).

     1.14  Canaan Permits. As defined in paragraph 3.12 of this Agreement.
           --------------

     1.15  Canaan Plans. The stock option plans and related agreements listed in
           ------------
           section 2.4.3 of the Canaan Disclosure Schedule.

     1.16  Canaan Predecessor. As defined in paragraph 3.14.1 of this Agreement.
           ------------------

                                       -2-



     1.17  Canaan Representative. Any director, officer, employee, agent,
           ---------------------
           advisor (including legal, accounting and financial advisors),
           Affiliate or other representative of Canaan.

     1.18  Canaan Rights. The preferred share purchase rights issued pursuant to
           -------------
           the Canaan Rights Agreement for each share of Canaan Common Stock
           outstanding on March 25, 2002.

     1.19  Canaan Rights Agreement. The Rights Agreement dated as of March 13,
           -----------------------
           2002 between Canaan and UMB Bank, N.A., as rights agent setting forth
           the terms and conditions of the Canaan Rights.

     1.20  Canaan SEC Documents. As defined in paragraph 3.5 of this Agreement.
           --------------------

     1.21  Canaan Severance Policy. As defined in paragraph 5.9.1(b) of this
           -----------------------
           Agreement.

     1.22  Canaan Specified Stockholders. The stockholders of Canaan who are:
           -----------------------------
           (a) on Canaan's board of directors; or (b) executive officers of
           Canaan.

     1.23  Canaan Stock Option(s). Any unexpired option or other right to
           ---------------------
           purchase Canaan Common Stock issued under the Canaan Plans and
           outstanding as of the Effective Time (regardless of whether vested,
           unvested or currently exercisable).

     1.24  Canaan Stockholder Meeting. The meeting of the stockholders of Canaan
           --------------------------
           for the purpose of voting on this Agreement and the Merger.

     1.25  Canaan Termination Fee. As defined in paragraph 5.16 of this
           ----------------------
           Agreement.

     1.26  CERCLA. The Comprehensive Environmental Response, Compensation and
           ------
           Liability Act of 1980, as amended.

     1.27  Certificate of Merger. The Certificate of Merger to be prepared and
           ---------------------
           executed in accordance with the applicable provisions of the OGCA and
           filed with the Secretary of State of Oklahoma to reflect the
           consummation of the Merger.

     1.28  Closing. The closing of the Merger and the consummation of the other
           -------
           transactions contemplated by this Agreement.

     1.29  Closing Date. Unless otherwise agreed to by Parent and Canaan in
           ------------
           writing, the Closing will take place on the second business day
           following the day after which both of the following have occurred:
           (a) the Canaan Stockholder Meeting; and (b) the satisfaction of the
           conditions to the Merger as set forth in this Agreement (other than
           conditions that by their nature are to be satisfied at Closing).

     1.30  COBRA. The Consolidated Omnibus Reconciliation Act of 1985, as
           -----
           amended, as contained in section 4980B of the Code.

                                       -3-



         1.31   Code.  The Internal Revenue Code of 1986, as amended.
                ----

         1.32   Confidentiality Agreement. The letter agreement dated March 28,
                -------------------------
                2002 between Canaan and Parent relating to Canaan's furnishing
                of information to Parent in connection with Parent's evaluation
                of a possible transaction between Parent and Canaan.

         1.33   Contract Employee. As defined in paragraph 5.9.1(d) of this
                -----------------
                Agreement.

         1.34   Defensible Title. Such right, title and interest to an asset
                ----------------
                that is: (a) evidenced by an instrument or instruments filed of
                record in accordance with the conveyance and recording laws of
                the applicable jurisdiction to the extent necessary to prevail
                against competing claims of bona fide purchasers for value
                without notice; (b) subject to Permitted Encumbrances; and (c)
                free and clear of all other Liens, claims, infringements,
                burdens or other defects.

         1.35   Dissenting Stockholders.  Any holder or holders of Canaan
                -----------------------
                Common  Stock who validly perfect appraisal rights under Section
                1091 of the OGCA.

         1.36   Effective Time.  As defined in paragraph 2.7 of this Agreement.
                --------------

         1.37   Environmental Law. Any federal, state, local or foreign statute,
                -----------------
                code, ordinance, rule, regulation, policy, guideline, permit,
                consent, approval, license, judgment, order, writ, decree,
                injunction or other authorization relating to: (a) emissions,
                discharges, releases or threatened releases of Hazardous
                Materials into the natural environment (including, without
                limitation, ambient air, soil, sediments, land surface or
                subsurface, buildings or facilities, surface water, groundwater,
                publicly-owned treatment works, septic systems or land); (b) the
                generation, treatment, storage, disposal, use, handling,
                manufacture, transportation or shipment of Hazardous Materials;
                or (c) the pollution of the environment, solid waste or
                operation or reclamation of mines.

         1.38   ERISA.  The Employee Retirement Income Security Act of 1974, as
                -----
                amended from time to time.

         1.39   Exchange Act.  The Securities Exchange Act of 1934, as amended
                ------------
                from time to time.

         1.40   Exchange Agent.  UMB Bank, N.A., the paying agent for shares of
                --------------
                Canaan Common Stock.

         1.41   Exchange Fund. As defined in paragraph 2.5.1 of this Agreement.
                -------------

         1.42   GAAP.  Generally accepted accounting  principles, as recognized
                ----
                by the U.S. Financial Accounting Standards Board (or any
                enerally recognized successor).

                                       -4-




         1.43   Goodwill Protection Agreement. The agreement to be executed and
                -----------------------------
                delivered at the Closing by Leo E. Woodard, John K. Penton and
                Michael S. Mewbourn in favor of Canaan and Parent substantially
                in the form attached hereto as Exhibit "B."

         1.44   Governmental Authority. Any national, state, county or municipal
                ----------------------
                government, (whether domestic or foreign), agency, board,
                bureau, commission, court, department or other instrumentality
                of any such government, or any arbitrator in any case that has
                jurisdiction over Canaan, Parent or Sub or any of their
                respective properties or assets.

         1.45   Hazardous Material. Any: (a) "hazardous substance" as defined by
                ------------------
                CERCLA; (b) "hazardous waste" as defined by the Resource
                Conservation and Recovery Act, as amended; (c) hazardous,
                dangerous or toxic chemical, material, waste or substance,
                within the meaning of and regulated by any Environmental Law;
                (d) radioactive material, including any naturally occurring
                radioactive material, and any source, special or by product
                material as defined in 42 U.S.C. 2011 et seq. and any amendments
                or authorizations thereof; (e) asbestos-containing materials in
                any form or condition; or (f) polychlorinated biphenyls in any
                form or condition.

         1.46   HSR Act. The Hart-Scott-Rodino Antitrust Improvements Act of
                -------
                1976, as amended from time to time.

         1.47   Hydrocarbons.  Oil, condensate, gas, casinghead gas and other
                ------------
                liquid or gaseous hydrocarbons.

         1.48   Indemnified Parties. As defined in paragraph 5.8.1 of this
                -------------------
                Agreement.

         1.49   Irrevocable Proxy. The irrevocable proxy in the form attached
                -----------------
                hereto as Exhibit "A" to be executed by the Canaan Specified
                Stockholders granting to Parent the right to vote such holders'
                Canaan Common Stock in connection with the stockholders' vote
                concerning the Merger and any and all related matters.

         1.50   Lien(s). Any lien, mortgage, security interest, pledge, deposit,
                -------
                production payment, restriction, burden, encumbrance, rights of
                a vendor under any title retention or conditional sale
                agreement, or lease or other arrangement substantially
                equivalent thereto.

         1.51   Material Adverse Effect. An event or condition or a series of
                -----------------------
                related events or conditions that: (1) has an adverse financial
                impact of more than Five Million Dollars ($5,000,000) on Canaan;
                (2) materially and adversely affects the business, assets,
                liabilities or financial condition of Canaan; or (3) with
                respect to either Party, materially and adversely affects the
                ability of the party to consummate the transactions contemplated
                by this Agreement in accordance herewith or fulfill the
                conditions to Closing. Notwithstanding the foregoing the
                following will not be taken into account in determining whether
                there has been a Material Adverse Effect: (x) any adverse affect
                or change that is caused by or results from conditions affecting
                the United States economy generally or the economy of any nation
                or region in which Canaan or Parent

                                       -5-



                (as the case may be) conducts business on a consolidated basis;
                (y) any adverse affect or change that is caused by or results
                from conditions generally affecting the natural gas industry
                including, without limitation, the prices of natural gas and
                oil; and (z) any adverse affect or change that is caused by or
                results from the announcement or pendency of this Agreement, the
                Merger or the transactions contemplated hereby.

         1.52   Merger.  As defined in paragraph 2.1 of this Agreement.
                ------

         1.53   Merger Consideration. The aggregate amount equal to the sum of:
                --------------------
                (1) the total number of shares of Canaan Common Stock that are
                issued and outstanding as of the Effective Time other than those
                held by Parent or Sub multiplied by the Per Share Merger
                Consideration; plus (2) the aggregate amount by which the Per
                Share Merger Consideration exceeds the exercise price of each of
                the Canaan Stock Options identified in Section 2.4.3 of the
                Canaan Disclosure Schedule which are in the money (based on the
                Per Share Merger Consideration) and which are outstanding at the
                Effective Time.

         1.54   Net Revenue Interests. Canaan's interest in Hydrocarbons
                ---------------------
                produced from or attributable to Canaan's Oil and Gas Interests,
                after deducting all lessor's royalties, overriding royalties,
                production payments, and other interests or burdens on
                Hydrocarbons produced from Canaan's oil and gas properties or
                any well thereon.

         1.55   Office Space Agreement. The agreement to be executed between
                ----------------------
                Canaan and LJ Natural Gas Company, in substantially the form
                attached hereto as Exhibit "C."

         1.56   OGCA.  The Oklahoma General Corporation Act, as amended.
                ----

         1.57   Oil and Gas Interests. Any and all: (a) direct and indirect
                ---------------------
                interests in and rights with respect to oil, gas, mineral and
                related properties and assets of any kind and nature, direct or
                indirect, including working, royalty and overriding royalty
                interests, production payments, operating rights, net profits
                interests, other non-working interests and non-operating
                interests; (b) interests in and rights with respect to
                Hydrocarbons and other minerals or revenues therefrom and
                contracts in connection therewith and claims and rights thereto
                (including oil and gas leases, operating agreements, unitization
                and pooling agreements and orders, division orders, transfer
                orders, mineral deeds, royalty deeds, oil and gas sales,
                exchange and processing contracts and agreements and interests
                related to any of the foregoing), surface interests, fee
                interests, reversionary interests, reservations and concessions;
                (c) easements, rights of way, licenses, permits, leases, and
                other interests associated with, appurtenant to, or necessary
                for the operation of any of the foregoing; and (d) interests in
                fixtures, equipment and machinery (including well equipment and
                machinery), oil and gas production, gathering, transmission,
                compression, treating, processing and storage facilities
                (including tanks, tank batteries, pipelines and gathering
                systems), pumps, water plants, electric plants, gasoline and gas
                processing plants, refineries and other tangible personal
                property and fixtures associated with, appurtenant to, or
                necessary for the operation of any of the foregoing.

                                       -6-




         1.58   Ownership Interests. The Net Revenue Interests, Working
                -------------------
                Interests and other ownership interests, if any, of Canaan in
                Canaan's Oil and Gas Interests which were classified as having
                proved reserves as of December 31, 2001 as reported in the
                Canaan SEC Reports and listed in Section 1.58 of the Canaan
                Disclosure Schedule.

         1.59   Parent.  Chesapeake Energy Corporation, an Oklahoma corporation.
                ------

         1.60   Parent Companies.  Parent and the Parent Subsidiaries.
                ----------------

         1.61   Parent Representative. Any director, officer, employee, agent,
                ---------------------
                advisor (including legal, accounting and financial advisors),
                Affiliate or other representative of Parent or Parent
                Subsidiaries.

         1.62   Parent Subsidiaries.  Sub and all other direct or indirect
                -------------------
                wholly owned subsidiaries of Parent.

         1.63   Parties. The collective reference to Parent, Sub and Canaan.
                -------

         1.64   Payout Balance. As defined in paragraph 3.36 of this Agreement.
                --------------

         1.65   Permitted Encumbrances. Any: (a) Liens for Taxes, assessments or
                ----------------------
                other governmental charges or levies that are not at the
                particular time in question due and delinquent, foreclosure,
                distraint, sale or other similar proceedings have not been
                commenced or if commenced, have been stayed or are being
                contested in good faith by appropriate proceedings and if Canaan
                will have set aside on its books such reserves (segregated to
                the extent required by sound accounting practices) as may be
                required by GAAP or otherwise determined by its board of
                directors to be adequate with respect thereto; (b) Liens of
                carriers, warehousemen, mechanics, laborers, materialmen,
                landlords, vendors, workmen and operators arising by operation
                of law in the ordinary course of business or by a written
                agreement existing as of the date hereof and necessary or
                incident to the exploration, development, operation and
                maintenance of Hydrocarbon properties and related facilities and
                assets for sums not yet due or being contested in good faith by
                appropriate proceedings, if Canaan will have set aside on its
                books such reserves (segregated to the extent required by sound
                accounting practices) as may be required by GAAP or otherwise
                determined by its board of directors to be adequate with respect
                thereto; (c) Liens incurred in the ordinary course of business
                in connection with worker's compensation, unemployment insurance
                and other social security legislation (other than ERISA); (d)
                Liens incurred in the ordinary course of business to secure the
                performance of bids, tenders, trade contracts, leases, statutory
                obligations, surety and appeal bonds, performance and repayment
                bonds and other obligations of a like nature; (e) Liens,
                easements, rights-of-way, restrictions, servitudes, permits,
                conditions, covenants, exceptions, reservations and other
                similar encumbrances incurred in the ordinary course of business
                or existing on property and not (i) reducing the Canaan Net
                Revenue Interest set forth in Section 1.58 of the Canaan
                Disclosure Schedule, (ii) increasing the Canaan Working
                Interests in any Oil and Gas Interest set forth in Section 1.58
                of the Canaan Disclosure Schedule or (iii) impairing the value
                of the assets of

                                       -7-



                Canaan or interfering with the ordinary conduct of the business
                of Canaan or rights to any of their assets; (f) Liens created or
                arising by operation of law to secure a party's obligations as a
                purchaser of oil and gas; (g) all rights to consent by, required
                notices to, filings with, or other actions by any Governmental
                Authority to the extent customarily obtained subsequent to
                Closing; (h) farmout, carried working interest, joint operating,
                unitization, royalty, overriding royalty, sales and similar
                agreements relating to the exploration or development of, or
                production from, Hydrocarbon properties entered into in the
                ordinary course of business that do not (x) reduce the Canaan
                Net Revenue Interests set forth in Section 1.58 of the Canaan
                Disclosure Schedule, (y) increase the Canaan Working Interests
                in any Oil and Gas Interest set forth in Section 1.58 of the
                Canaan Disclosure Schedule or (z) adversely affect the value of
                any asset of Canaan; (i) any defects, irregularities or
                deficiencies in title to easements, rights-of-way or other
                surface use agreements that do not (x) reduce the Canaan Net
                Revenue Interests set forth in Section 1.58 of the Canaan
                Disclosure Schedule, (y) increase the Canaan Working Interests
                in any Oil and Gas Interest set forth in Section 1.58 of the
                Canaan Disclosure Schedule or (z) adversely affect the value of
                any asset of Canaan; (j) preferential rights to purchase and
                Third-Party Consents disclosed in Section 1.65 of the Canaan
                Disclosure Schedule; (k) Liens arising under or created pursuant
                to the Bank Credit Agreement; and (l) Liens specifically
                described in Section 1.65 of the Canaan Disclosure Schedule.

         1.66   Per Share Merger Consideration.  Eighteen Dollars ($18.00) per
                ------------------------------
                share of Canaan Common Stock including the associated Canaan
                Rights.

         1.67   Person(s). Any natural person, corporation, company, limited or
                ---------
                general partnership, joint stock company, joint venture,
                association, limited liability company, limited liability
                partnership, trust, bank, trust company, land trust, business
                trust or other entity or organization, whether or not a
                Governmental Authority.

         1.68   Proxy Statement.  A proxy statement in a definitive form
                ---------------
                relating to the Canaan Stockholder Meeting.

         1.69   Returns. As defined in paragraph 3.14.1 of this Agreement.
                -------

         1.70   SEC. The Securities and Exchange Commission.
                ---

         1.71   Securities Act. The Securities Act of 1933, as amended from time
                --------------
                to time.

         1.72   Sub. CHK Acquisition, Inc., an Oklahoma corporation and wholly-
                ---
                owned subsidiary of Parent.

         1.73   Sub Common Stock. Sub's common stock, par value $1.00 per share.
                ----------------

         1.74   Superior Proposal. As defined in paragraph 5.3.2 of this
                -----------------
                Agreement.

         1.75   Surviving Corporation. As defined in paragraph 2.2 of this
                ---------------------
                Agreement.

                                      -8-



         1.76   Tax(es). Any and all taxes, fees, levies, duties, tariffs,
                -------
                imposts, and other charges of any kind (together with any and
                all interest, penalties, additions to tax and additional
                amountsimposed with respect thereto) imposed by any Governmental
                Authority or taxing authority including, without limitation,
                taxes or other charges on or with respect to income, franchises,
                windfall or other profits, gross receipts, property, sales, use,
                capital stock, payroll, employment, social security, workers'
                compensation, unemployment compensation, or net worth, taxes or
                other charges in the nature of excise, withholding, ad valorem,
                stamp, transfer, value added, or gains taxes, license,
                registration and documentation fees, and custom duties, tariffs,
                and similar charges.

         1.77   Third-Party Consent. The consent or approval of any Person other
                -------------------
                than Canaan, Parent, Sub or any Governmental Authority.

         1.78   Transaction Documents. This Agreement, the Irrevocable Proxy,
                ---------------------
                the Goodwill Protection Agreement, the Office Space Agreement
                and the other documents and instruments executed and delivered
                in connection with any of the foregoing.

         1.79   Working Interest.  Canaan's share of all of the costs,
                ----------------
                expenses, burdens, and obligations of any type or nature
                attributable to Canaan's interests in its oil and gas properties
                or any well thereon.

2        Consummation of the Merger.  The Merger will be consummated as follows:
         --------------------------

         2.1    The Merger. Subject to the terms and conditions set forth in
                ----------
                this Agreement, at the Effective Time, Sub will be merged with
                and into Canaan in accordance with the provisions of this
                Agreement and the OGCA. Such merger is referred to in this
                Agreement as the "Merger."

         2.2    Effect of the Merger. Upon the effectiveness of the Merger, the
                --------------------
                separate existence of Sub will cease and Canaan, as the
                surviving corporation in the Merger (the "Surviving
                Corporation"), will continue its corporate existence under the
                laws of the State of Oklahoma. The Merger will have the effects
                specified in this Agreement and the OGCA.

         2.3    Governing Instruments, Directors and Officers of the Surviving
                --------------------------------------------------------------
                Corporation.
                -----------

                2.3.1 Certificate of Incorporation. The certificate of
                      ----------------------------
                      incorporation of Canaan, as in effect immediately prior to
                      the Effective Time amended to reflect the change in the
                      name of the Surviving Corporation as provided herein, will
                      be the certificate of incorporation of the Surviving
                      Corporation until duly amended in accordance with its
                      terms and applicable law.

                2.3.2 Bylaws. The bylaws of Canaan, as in effect immediately
                      ------
                      prior to the Effective Time, will be the bylaws of the
                      Surviving Corporation until duly amended in accordance
                      with their terms and applicable law.

                                      -9-




                2.3.3    Name. The name of the Surviving Corporation will be CHK
                         ----
                         Acquisition, Inc., however, at the option of Parent,
                         the name of the Surviving Corporation may be changed.

                2.3.4    Directors and Officers. The directors and officers of
                         ----------------------
                         Sub at the Effective Time will be the directors and
                         officers, respectively, of the Surviving Corporation
                         from the Effective Time until their respective
                         successors have been duly elected or appointed in
                         accordance with the certificate of incorporation and
                         bylaws of the Surviving Corporation and applicable law.

         2.4    Effect on Securities. As of the Effective Time, by virtue of the
                --------------------
                Merger and without any action on the part of any holder thereof,
                the Sub Common Stock, the Canaan Common Stock and other Canaan
                securities will be treated as follows subject to the terms and
                conditions of this Agreement:

                2.4.1    Sub Common Stock. Each share of Sub Common Stock
                         ----------------
                         outstanding immediately prior to the Effective Time
                         will be automatically converted into and become one (1)
                         share of common stock of the Surviving Corporation on a
                         one for one basis. As a result of the Merger the
                         foregoing stock will represent one hundred percent
                         (100%) of the issued and outstanding capital stock of
                         the Surviving Corporation immediately after the
                         Effective Time.

                2.4.2    Canaan Common Stock. At the Effective Time, by virtue
                         -------------------
                         of the Merger and without any action on the part of any
                         holder thereof, each share of Canaan Common Stock that
                         is issued and outstanding immediately prior to the
                         Effective Time will be converted into the right to
                         receive the Per Share Merger Consideration.
                         Notwithstanding the foregoing, the shares of Canaan
                         Common Stock covered by paragraph 2.4.4 of this
                         Agreement will be controlled by such paragraph and will
                         not receive the Per Share Merger Consideration. Each
                         share of Canaan Common Stock, when so converted, will
                         automatically be canceled and retired, will cease to
                         exist and will no longer be outstanding, and the holder
                         of any Canaan Certificate representing any such shares
                         will cease to have any rights with respect thereto,
                         except the right to receive the Per Share Merger
                         Consideration upon the surrender of such Canaan
                         Certificate in accordance with paragraph 2.5.

                2.4.3    Canaan Stock Options. Section 2.4.3 of the Canaan
                         --------------------
                         Disclosure Schedule lists: (a) each of the Canaan
                         Plans; and (b) each Canaan Stock Option outstanding as
                         of the date hereof specifying the Canaan Plan under
                         which such Canaan Stock Option was issued, the number
                         of shares of Canaan Common Stock covered by such Canaan
                         Stock Option, the term of such Canaan Stock Option, the
                         vesting schedule for such Canaan Stock Option and the
                         exercise price for such Canaan Stock Option. Each
                         Canaan Stock Option remaining outstanding at the
                         Effective Time will be or become fully vested at the
                         Effective Time. At the Effective Time, by virtue of the
                         Merger and without any action on the part of the holder
                         thereof, each Canaan Stock Option will

                                      -10-




                         be canceled and each Canaan Stock Option will be
                         converted into the right to receive, for each share of
                         Canaan Common Stock with respect to which such Canaan
                         Stock Option is exercisable, cash in an amount equal to
                         the Per Share Merger Consideration, less the per share
                         exercise price of such Canaan Stock Option. On
                         presentation to Parent of the Canaan Stock Option or
                         compliance with the provisions of paragraph 2.5.6 with
                         respect thereto, the Parent will pay or cause to be
                         paid to each holder of a Canaan Stock Option, for each
                         share of Canaan Common Stock with respect to which such
                         Canaan Stock Option is exercisable, cash in an amount
                         equal to (i) the amount by which (A) the Per Share
                         Merger Consideration, exceeds (B) the per share
                         exercise price of such Canaan Stock Option, less (ii)
                         amounts required to be withheld by Parent or Canaan, if
                         any, in respect of federal taxes and other payroll
                         withholding as a consequence of the cancellation and
                         conversion of such Canaan Stock Option in accordance
                         herewith. Without limiting the foregoing, except as
                         expressly disclosed in Section 2.4.3 of the Canaan
                         Disclosure Schedule, Canaan further hereby represents
                         and warrants to Parent that: (i) all adjustments
                         required to be made to the number of shares issuable or
                         the exercise price for exercise under each of the
                         Canaan Stock Options has been accurately made as
                         disclosed in Section 2.4.3 of the Canaan Disclosure
                         Schedule; and (ii) all required notices have been given
                         to the holders of the Canaan Stock Options including,
                         without limitation, adjustment notices. As of the
                         Effective Time, as a result of the Merger, the
                         provisions in any of the Canaan Plans or any other
                         program, arrangement, option, warrant or other
                         agreement providing for the issuance or grant of any
                         interest in respect of the capital stock of Canaan will
                         be canceled, cease to exist and no longer be
                         outstanding as of the Effective Time and Canaan will
                         take all action necessary to ensure that following the
                         Effective Time no Person will have any right thereunder
                         to acquire equity securities of Canaan, the Surviving
                         Corporation or any subsidiary thereof.

                2.4.4    Treasury Stock and Parent Owned Stock. At the Effective
                         -------------------------------------
                         Time, by virtue of the Merger, all shares of Canaan
                         Common Stock that are issued and held as treasury
                         stock, if any, and all shares of Canaan Common Stock
                         held by Parent will be canceled and retired and will
                         cease to exist, and no Merger Consideration or other
                         consideration will be paid or payable in exchange
                         therefor.

                2.4.5    Dissenting Stockholder Shares. Except as provided
                         -----------------------------
                         herein, any issued and outstanding shares of Canaan
                         Common Stock held by a Dissenting Stockholder will be
                         converted into the right to receive such consideration
                         as may be determined to be due to such Dissenting
                         Stockholder pursuant to the OGCA. If a Dissenting
                         Stockholder effectively withdraws the demand for
                         appraisal or loses the right of appraisal as provided
                         under the OGCA, the shares of Canaan Common Stock held
                         by such Dissenting Stockholder will be deemed to be
                         converted under paragraph 2.4.2 of this Agreement
                         (without interest). Canaan will provide prompt notice
                         to Parent of any written

                                      -11-



                 demands for appraisal, withdrawals of demands for appraisal and
                 any other instruments served pursuant to the OGCA and will
                 provide to Parent the opportunity to direct all negotiations
                 and proceedings with respect to demands for appraisal under the
                 OGCA. Absent the prior written consent of Parent and Sub,
                 Canaan will not negotiate, settle or offer to settle any demand
                 for appraisal, provided, however that any and all payments made
                 to settle such appraisal rights or made pursuant to the OGCA
                 will be made solely out of Canaan assets and neither Parent nor
                 Sub will have any liability therefor. Notwithstanding anything
                 contained in this paragraph 2.4.5, if the Merger is rescinded
                 or abandoned or if the stockholders of Canaan revoke the
                 authority to effect the Merger, then the right of any
                 Dissenting Stockholder to receive such consideration as may be
                 determined to be due in respect of such Dissenting
                 Stockholder's Canaan Common Stock pursuant to the OGCA will
                 cease.

     2.5  Exchange of Certificates. The exchange of Canaan Common Stock for the
          ------------------------
          Per Share Merger Consideration will be consummated as follows:

          2.5.1  Exchange Fund. At the Effective Time, Parent will deposit with
                 -------------
                 the Exchange Agent, for the benefit of the holders of shares of
                 Canaan Common Stock and for exchange in accordance with this
                 Agreement, funds representing the Merger Consideration to be
                 paid in exchange for shares of Canaan Common Stock pursuant to
                 paragraph 2.5.2, less the amount of the Merger Consideration
                 which: (i) would have been payable to Dissenting Stockholders;
                 and (ii) will be payable with respect to the Canaan Stock
                 Options. The funds delivered to the Exchange Agent pursuant
                 hereto are referred to herein as the "Exchange Fund." The
                 Exchange Agent, pursuant to irrevocable instructions consistent
                 with the terms of this Agreement, will deliver the Per Share
                 Merger Consideration to be paid pursuant to paragraph 2.5.2 out
                 of the Exchange Fund, and the Exchange Fund will not be used
                 for any other purpose whatsoever.

          2.5.2  Notice and Surrender. As soon as reasonably practicable after
                 --------------------
                 the Effective Time, Parent will cause the Exchange Agent to
                 mail to each holder of record of Canaan Common Stock that,
                 immediately prior to the Effective Time, were converted into
                 the right to receive the Per Share Merger Consideration
                 pursuant to paragraph 2.4.2, a letter of transmittal to be used
                 to effect the exchange of such Canaan Common Stock for the Per
                 Share Merger Consideration, along with instructions for using
                 such letter of transmittal to effect such exchange. The letter
                 of transmittal (or the instructions thereto) will specify that
                 delivery of any Canaan Certificate will be effected, and the
                 risk of loss and title thereto will pass, only upon delivery of
                 such Canaan Certificate to the Exchange Agent and will be in
                 such form and have such other provisions as Parent may
                 reasonably specify. On surrender to the Exchange Agent of a
                 Canaan Certificate for cancellation, together with a duly
                 completed and executed letter of transmittal and any other
                 required

                                      -12-



                 documents: (a) the holder of such Canaan Certificate will be
                 entitled to receive in exchange therefor the Per Share Merger
                 Consideration for each share of Canaan Common Stock represented
                 by such Canaan Certificate (after giving effect to any required
                 withholding of Taxes); and (b) the Canaan Certificate so
                 surrendered will forthwith be canceled. No interest will be
                 paid or accrued on the Per Share Merger Consideration. In the
                 event of a transfer of ownership of Canaan Common Stock that is
                 not registered in the transfer records of Canaan, the Per Share
                 Merger Consideration may be paid to a transferee if the Canaan
                 Certificate representing such shares of Canaan Common Stock is
                 presented to the Exchange Agent accompanied by all documents
                 required to evidence and effect such transfer and to evidence
                 that any applicable stock transfer Taxes have been paid. Until
                 surrendered as contemplated by this paragraph 2.5.2, each
                 Canaan Certificate will be deemed at any time after the
                 Effective Time to represent only the right to receive on such
                 surrender the Per Share Merger Consideration for the number of
                 shares of Canaan Common Stock represented by such Canaan
                 Certificate as provided in paragraph 2.4.2.

          2.5.3  Full Satisfaction. Payment of the Per Share Merger
                 -----------------
                 Consideration upon the surrender for exchange of shares of
                 Canaan Common Stock in accordance with the terms hereof will be
                 deemed to have been paid in full satisfaction of all rights
                 pertaining to such shares of Canaan Common Stock. After the
                 Effective Time, there will be no further registration of
                 transfers on the Surviving Corporation's stock transfer books
                 of the shares of Canaan Common Stock that were outstanding
                 immediately prior to the Effective Time. If, after the
                 Effective Time, a Canaan Certificate is presented to the
                 Surviving Corporation or Parent for any reason, it will be
                 canceled and exchanged as provided in this paragraph 2.5.

          2.5.4  Unclaimed Exchange Fund. Any portion of the Exchange Fund held
                 -----------------------
                 by the Exchange Agent in accordance with the terms of this
                 paragraph 2.5 that remains unclaimed by the former stockholders
                 of Canaan for a period of one (1) year following the Effective
                 Time will be delivered to Parent, on demand. Thereafter, any
                 former stockholders of Canaan who have not theretofore complied
                 with the provisions of this paragraph 2.5 will look only to
                 Parent for payment of their claim for the Per Share Merger
                 Consideration for the number of shares of Canaan Common Stock
                 owned. No interest will be paid or payable on any Per Share
                 Merger Consideration regardless of the date actually paid.

          2.5.5  No Liability. Neither Parent, Sub, Canaan, the Surviving
                 ------------
                 Corporation, the Exchange Agent nor any other Person will be
                 liable to any former holder of shares of Canaan Common Stock
                 for any amount properly delivered to any public official
                 pursuant to any applicable abandoned property, escheat or
                 similar law. Any amounts remaining unclaimed by former holders
                 of Canaan Common Stock for a period of three (3) years
                 following the Effective Time

                                      -13-



                 (or such earlier date immediately prior to the time at which
                 such amounts would otherwise escheat to or become property of
                 any Governmental Authority) will, to the extent permitted by
                 applicable law, become the property of Parent, free and clear
                 of any claims or interest of any such holders or their
                 successors, assigns or personal representatives previously
                 entitled thereto.

          2.5.6  Lost, Stolen or Destroyed Certificates. If any Canaan
                 --------------------------------------
                 Certificate is lost, stolen or destroyed, upon the making of an
                 affidavit of that fact by the Person claiming such Canaan
                 Certificate to be lost, stolen or destroyed and, if required by
                 Parent, the posting by such Person of a bond, in such
                 reasonable amount as Parent may direct, as indemnity against
                 any claim that may be made against Parent with respect to such
                 Canaan Certificate, the Exchange Agent will pay in exchange for
                 such lost, stolen or destroyed Canaan Certificate the Per Share
                 Merger Consideration deliverable with respect thereto pursuant
                 to this Agreement.

          2.5.7  Investment of Exchange Fund. The Exchange Agent will invest any
                 ---------------------------
                 cash included in the Exchange Fund from time to time, as
                 directed by Parent, in short term money market assets or
                 similar securities. Any interest and other income resulting
                 from such investments will be payable to Parent on demand and
                 will be the sole property of Parent.

     2.6  Closing.  The Closing will take place on the Closing  Date at such
          -------
          time and place as is agreed upon by Parent and Canaan.

     2.7  Effective Time of the Merger. The Merger will become effective
          ----------------------------
          immediately when the Certificate of Merger is accepted for filing by
          the Secretary of State of Oklahoma or at such time thereafter as is
          provided in the Certificate of Merger (the "Effective Time"). The
          Certificate of Merger will be filed on the Closing Date as soon as
          practicable after the Closing; provided, however, that the Certificate
          of Merger may be filed prior to the Closing Date or prior to the
          Closing so long as it provides for an Effective Time that occurs after
          the Closing.

     2.8  Taking of Necessary or Further Action. Each of Parent, Sub and Canaan
          -------------------------------------
          will use all reasonable efforts to take all such actions as may be
          necessary or appropriate in order to effectuate the Merger under the
          OGCA as promptly as commercially practicable. If, at any time after
          the Effective Time, any further action is necessary or desirable to
          carry out the purposes of this Agreement and to vest the Surviving
          Corporation with full right, title and possession to all assets,
          property, rights, privileges, powers and franchises of either Sub or
          Canaan, the officers and directors of the Surviving Corporation are
          fully authorized, in the name of the Surviving Corporation or
          otherwise to take, and will take all such lawful and necessary action.

                                      -14-



3.   Canaan Representations and Warranties. Except as set forth in the Canaan
     -------------------------------------
Disclosure Schedule with a reference to each paragraph of this Agreement
modified by such item of disclosure, Canaan hereby represents and warrants to
Parent and Sub that:

     3.1   Corporate Organization. Canaan: (a) is a corporation duly organized,
           ----------------------
           validly existing and in good standing under the laws of the state of
           Oklahoma; (b) has all requisite corporate power and authority to own,
           lease and operate its properties and assets and to carry on its
           business as it is presently being conducted; and (c) is duly
           qualified to do business as a foreign corporation, and is in good
           standing, in each jurisdiction where the character of the properties
           owned or leased by it or the nature of its activities makes such
           qualification necessary (except where any failure to be so qualified
           as a foreign corporation or to be in good standing would not,
           individually or in the aggregate, have a Material Adverse Effect on
           Canaan). Copies of the certificate or articles of incorporation and
           bylaws of Canaan have heretofore been delivered to Parent and such
           copies are accurate and complete as of the date hereof.

     3.2   Authority and Enforceability. The board of directors of Canaan (at a
           ----------------------------
           meeting duly called and held) has: (a) determined that the Merger is
           advisable; and (b) resolved to approve the Merger and recommend the
           approval and adoption of this Agreement by Canaan's stockholders. In
           addition, the board of directors of Canaan has taken all action
           necessary to render the Control Share Acquisition Act, Sections 1145
           through 1155 of Title 18 of the Oklahoma Statutes and Section 1090.3
           of the OGCA inapplicable to the Merger and the other transactions
           contemplated by this Agreement. No other state takeover statute or
           similar statute or regulation applies or purports to apply to Canaan
           with respect to this Agreement, the Merger or any other transaction
           contemplated by this Agreement. Canaan has the requisite corporate
           power and authority to execute and deliver this Agreement and (with
           respect to consummation of this Agreement and the Merger, subject to
           the approval of the stockholders of Canaan) to consummate the
           transactions contemplated hereby. The execution and delivery of this
           Agreement and (with the approval by the stockholders of Canaan) the
           consummation of the transactions contemplated hereby have been duly
           and validly authorized by all necessary corporate action on the part
           of Canaan, including approval by the board of directors of Canaan,
           and no other corporate proceedings on the part of Canaan are
           necessary to authorize the execution or delivery of this Agreement or
           (with approval by the stockholders of Canaan) to consummate the
           transactions contemplated hereby. The board of directors of Canaan
           has taken all action necessary to render the Canaan Rights
           inapplicable to this Agreement, the other Transaction Documents and
           the Merger and ensure that neither Parent nor Sub nor any of their
           Affiliates or associates is or will become an "Acquiring Person" (as
           defined in the Canaan Rights Agreement) by reason of any of the
           Transaction Documents or the Merger. In addition, a "Distribution
           Date" (as defined in the Canaan Rights Agreement) will not occur by
           reason of the execution of this Agreement, the execution of any of
           the Transaction Documents or the consummation of the Merger. This
           Agreement has been duly and validly executed and delivered by Canaan
           and constitutes a valid and binding obligation of Canaan, enforceable
           against Canaan in accordance with its terms.

                                      -15-



     3.3   No Violations. The execution and delivery of this Agreement does not,
           -------------
           and the consummation of the transactions contemplated hereby and
           compliance by Canaan with the provisions hereof will not, conflict
           with, result in any violation of or default (with or without notice
           or lapse of time or both) under, give rise to a right of termination,
           cancellation or acceleration of any obligation (excluding any change
           of control put or acceleration) or to the loss of a material benefit
           under, or result in the creation of any Lien on any of the properties
           or assets of Canaan under, any provision of: (a) the certificate of
           incorporation or bylaws of Canaan; (b) any loan or credit agreement,
           note, bond, mortgage, indenture, lease, permit, concession,
           franchise, license or other agreement or instrument applicable to
           Canaan; or (c) assuming the consents, approvals, authorizations or
           permits and filings or notifications referred to in paragraph 3.4 are
           duly and timely obtained or made, any judgment, order, decree,
           statute, law, ordinance, rule or regulation applicable to Canaan or
           any of Canaan's properties or assets, other than, in the case of
           clause (b) or (c) above, any such conflict, violation, default,
           right, loss or Lien that, individually or in the aggregate, would not
           have a Material Adverse Effect on Canaan.

     3.4   Consents and Approvals. No consent, approval, order or authorization
           ----------------------
           of, registration, declaration, or filing with, or permit from, any
           Governmental Authority is required by or with respect to Canaan in
           connection with the execution and delivery of this Agreement by
           Canaan or the consummation by Canaan of the transactions contemplated
           hereby except for the following: (1) any such consent, approval,
           order, authorization, registration, declaration, filing or permit
           which the failure to obtain or make would not, individually or in the
           aggregate, have a Material Adverse Effect on Canaan; (2) the filing
           of the Certificate of Merger with the Secretary of State of Oklahoma
           pursuant to the provisions of the OGCA; (3) the filing, if necessary,
           of a pre-merger notification report under the HSR Act and the
           expiration or termination of the applicable waiting period; (40 the
           filing with the SEC of the Proxy Statement and such other reports
           under Section 13(a) of the Exchange Act and such other compliance
           with the Exchange Act and the Securities Act and the rules and
           regulations of the SEC thereunder as may be required in connection
           with this Agreement and the transactions contemplated hereby and the
           obtaining from the SEC of such orders as may be so required; and (5)
           such filings and approvals as may be required by any applicable state
           securities, "blue sky" or takeover laws or Environmental Laws. No
           Third-Party Consent is required by or with respect to Canaan in
           connection with the execution and delivery of this Agreement or the
           consummation of the transactions contemplated hereby, except for: (x)
           any such Third-Party Consent which the failure to obtain would not,
           individually or in the aggregate, have a Material Adverse Effect on
           Canaan; (y) the valid approval of this Agreement and the Merger by
           the stockholders of Canaan; and (z) any consent, approval or waiver
           required by the terms of the Bank Credit Agreement, which consent,
           approval or waiver Canaan agrees to use reasonable efforts to obtain
           if requested by Parent or Sub.

     3.5   Canaan SEC Documents. Parent has had available to it a true, correct
           --------------------
           and complete copy of each report, schedule, registration statement
           and definitive proxy statement filed by Canaan with the SEC since
           December 31, 2000, and prior to the Effective Time (the "Canaan SEC
           Documents"), which are all the documents that Canaan was or will be

                                      -16-



           required to file with the SEC since such date. As of their respective
           dates, the Canaan SEC Documents complied or will comply in all
           material respects with the requirements of the Securities Act or the
           Exchange Act, as the case may be, and the rules and regulations of
           the SEC thereunder applicable to such Canaan SEC Documents, and none
           of the Canaan SEC Documents contained or will contain any untrue
           statement of a material fact or omitted or will omit to state a
           material fact required to be stated therein or necessary to make the
           statements therein, in light of the circumstances under which they
           were made, not misleading.

     3.6   Financial Statements. The Canaan Financial Statements were prepared
           --------------------
           in accordance with the applicable published rules and regulations of
           the SEC with respect thereto and in accordance with GAAP applied on a
           consistent basis during the periods involved (except as may be
           indicated in the notes thereto) and fairly present in all material
           respects, in accordance with applicable requirements of GAAP, the
           financial position of Canaan as of their respective dates and the
           results of operations and the cash flows of Canaan for the periods
           presented therein.

     3.7   Capital Structure. The authorized capital stock of Canaan consists of
           -----------------
           50,000,000 shares of Canaan Common Stock and 1,000,000 shares of
           preferred stock, 25,000 of which have been designated as Series A
           Junior Participating Preferred Stock , par value $.01. As of April
           17, 2002: (a) 4,353,646 shares of Canaan Common Stock were validly
           issued and outstanding; (b) 500,000 shares of Canaan Common Stock
           were reserved for issuance pursuant to the Canaan Plans, of which
           Canaan Stock Options to purchase a total of 470,450 shares of Canaan
           Common Stock were issued and outstanding; (c) there are no shares of
           capital stock of Canaan of any class authorized, issued or
           outstanding other than the Canaan Common Stock ; and (d) 578,169
           shares of Canaan Common Stock were held by Canaan as treasury stock.
           Except for changes resulting from the exercise of Canaan Stock
           Options listed in section 2.4.3 of the Canaan Disclosure Schedule
           Canaan will notify Parent in writing simultaneously with any change
           after April 17, 2002, in any of the numbers of securities set forth
           in the immediately preceding sentence together with a detailed
           explanation of the event giving rise to such change. Except as
           described in subpart (a) above, as described in Section 2.4.3 of the
           Canaan Disclosure Schedule and the Canaan Rights under the Canaan
           Rights Plan, there are: (i) no outstanding shares of capital stock or
           other voting securities of Canaan; (ii) no outstanding securities of
           Canaan or any other Person convertible into or exchangeable or
           exercisable for shares of capital stock or other voting securities of
           Canaan; and (iii) no outstanding subscriptions, options, warrants,
           calls, rights (including preemptive rights, stock appreciation
           rights, phantom stock rights, conversion rights, commitments,
           understandings or agreements to which Canaan is a party or by which
           it is bound) obligating Canaan to issue, deliver, sell, purchase,
           redeem or acquire shares of capital stock or other securities of
           Canaan or obligating Canaan to grant, extend or enter into any such
           subscription, option, warrant, call, right, commitment, understanding
           or agreement. All outstanding shares of capital stock of Canaan are
           validly issued, fully paid and nonassessable and not subject to any
           preemptive right. As of the date hereof there is no, and at the
           Effective Time there will not be any, stockholder agreement, voting
           trust or other agreement or understanding

                                      -17-



           to which Canaan is a party or by which it is bound relating to the
           voting of any shares of the capital stock of Canaan.

     3.8   Governmental Regulation. Canaan is not subject to regulation under
           -----------------------
           the Public Utility Holding Company Act of 1935, the Federal Power
           Act, the Investment Company Act of 1940 or any state public utilities
           laws.

     3.9   Litigation. There is no litigation, arbitration, investigation or
           ----------
           other proceeding of any Governmental Authority or other Person
           pending or, to the knowledge of Canaan, threatened against Canaan or
           Canaan's assets which, if adversely determined, could reasonably be
           expected to have a Material Adverse Effect on Canaan. Canaan has no
           knowledge of any facts that are likely to give rise to any
           litigation, arbitration, investigation or other proceeding of any
           Governmental Authority or other Person which, individually or in the
           aggregate, could reasonably be expected to have a Material Adverse
           Effect on Canaan. Canaan is not subject to any outstanding
           injunction, judgment, order, decree or ruling (other than routine oil
           and gas field regulatory orders and any injunction, judgment, order,
           decree or ruling that, either individually or in the aggregate, would
           not reasonably be expected to have a Material Adverse Effect on
           Canaan). There is no litigation, investigation or other proceeding of
           any Governmental Authority or other Person pending or, to the
           knowledge of Canaan, threatened against or affecting Canaan that
           questions the validity or enforceability of this Agreement or any
           other document, instrument or agreement to be executed and delivered
           by Canaan in connection with the transactions contemplated hereby.

     3.10  Brokers. No broker, finder, investment banker or other Person is or
           -------
           will be, in connection with the transactions contemplated by this
           Agreement, entitled to any brokerage, finder's or other fee or
           compensation based on any arrangement or agreement made by or on
           behalf of Canaan for which Canaan or Parent or Sub will have any
           obligation or liability.

     3.11  Absence of Certain Changes or Events. Since December 31, 2001, Canaan
           ------------------------------------
           has conducted its business only in the ordinary course of business
           consistent with past practices and, since such date, there has not
           been any event (financial or otherwise, whether or not in the
           ordinary course of business), circumstance or condition that: (a)
           would be reasonably likely to have a Material Adverse Effect on
           Canaan; or (b) would have required the consent of Parent pursuant to
           paragraph 5.1 had such event occurred after the date of this
           Agreement.

     3.12  Compliance with Laws, Material Agreements and Permits. Canaan is not
           -----------------------------------------------------
           in violation of, or in default under, and no event has occurred that
           (with notice or the lapse of time or both) would constitute a
           violation of or default under: (a) its certificate or articles of
           incorporation or bylaws or other governing document; (b) any
           applicable law, rule, regulation, order, writ, decree or judgment of
           any Governmental Authority; or (c) any Canaan Material Agreement,
           except (in the case of clause (b) or (c) above) for any violation or
           default that would not, individually or in the aggregate, have a
           Material Adverse Effect on Canaan. Canaan has obtained and holds all
           permits, licenses,

                                      -18-



           variances, exemptions, orders, franchises, approvals and
           authorizations of all Governmental Authorities necessary for the
           lawful conduct of its business or the lawful ownership, use and
           operation of its assets ("Canaan Permits"), except for Canaan Permits
           which the failure to obtain or hold would not, individually or in the
           aggregate, have a Material Adverse Effect on Canaan. Canaan is in
           compliance with the terms of each of the Canaan Permits, except where
           the failure to comply would not, individually or in the aggregate,
           have a Material Adverse Effect on Canaan. No investigation or review
           by any Governmental Authority with respect to Canaan is pending or,
           to the knowledge of Canaan, threatened, other than those, the outcome
           of which would not, individually or in the aggregate, have a Material
           Adverse Effect on Canaan. To the knowledge of Canaan, no party to any
           Canaan Material Agreement is in material breach of the terms,
           provisions and conditions of such Canaan Material Agreement.

     3.13  No Restrictions. Canaan is not a party to: (a) any agreement,
           ---------------
           indenture or other instrument that contains restrictions with respect
           to the payment of dividends or other distributions with respect to
           its capital stock; (b) any financial arrangement with respect to or
           creating any indebtedness to any Person (other than indebtedness
           reflected in the Canaan Financial Statements or indebtedness incurred
           in the ordinary course of business); (c) any agreement, contract or
           commitment relating to the making of any advance to, or investment
           in, any Person; (d) any guaranty or other contingent liability with
           respect to any indebtedness or obligation of any Person (other than
           the endorsement of negotiable instruments for collection in the
           ordinary course of business); or (e) any agreement, contract or
           commitment limiting in any respect its ability to compete with any
           Person or otherwise conduct business of any line or nature.

     3.14  Taxes. During the period beginning on January 1, 1998, and ending on
           -----
           the date hereof, except as expressly provided below:

           3.14.1  Canaan and any affiliated, combined or unitary group of which
                   Canaan or any subsidiary is or was a member and any Person
                   that has been acquired by Canaan (a "Canaan Predecessor") has
                   properly completed and timely (taking into account any
                   extensions) filed all federal, state, local and foreign
                   returns, declarations, reports, estimates, information
                   returns and statements ("Returns") required to be filed in
                   respect of any Tax and has timely paid all Taxes that are
                   shown by such Returns to be due and payable and the Returns
                   correctly and accurately (except for one or more matters the
                   aggregate effect of which would not reasonably be expected to
                   have a Material Adverse Effect) reflect the facts regarding
                   the income, business and assets, operations, activities,
                   status or other matters of Canaan required to be shown
                   thereon or any other information required to be shown thereon
                   and are not subject to penalties under Section 6662 of the
                   Code, relating to accuracy-related penalties, or any
                   corresponding provision of applicable state, local or foreign
                   tax law or any predecessor provision. Canaan has established
                   reserves that are adequate in the aggregate for the payment
                   of all material Taxes not yet due and payable with respect to
                   the results of operations of Canaan through the date hereof,
                   and has complied with all applicable laws, rules and

                                      -19-



                   regulations relating to the payment and withholding of Taxes
                   and the filing of material federal, state or local Returns
                   except where the failure to comply would not reasonably be
                   expected to have a Material Adverse Effect.

           3.14.2  Section 3.14.2 of the Canaan Disclosure Schedule sets forth
                   the last taxable period through which the federal income Tax
                   Returns of Canaan and any Canaan Predecessor have been
                   examined by the IRS. Except to the extent being contested in
                   good faith, all material deficiencies asserted as a result of
                   such examinations and any examination by any applicable state
                   or local taxing authority have been paid, fully settled or
                   adequately provided for in Canaan's most recent audited
                   financial statements. No Tax audits or other administrative
                   proceedings or court proceedings are presently pending with
                   regard to any Taxes for which Canaan would be liable, and no
                   deficiency which has not yet been paid for any such Taxes has
                   been proposed, asserted or assessed against Canaan with
                   respect to any period which would reasonably be expected to
                   have a Material Adverse Effect. No claim has been asserted by
                   an authority in any jurisdiction where Canaan do not file
                   Returns that any Canaan Company is subject to Tax in that
                   jurisdiction.

           3.14.3  Canaan and the Canaan Predecessors have not executed or
                   entered into (or prior to the close of business on the
                   Closing Date will execute or enter into) with the IRS or any
                   taxing authority: (a) any agreement extending the period for
                   assessment or collection of any Tax for which Canaan is
                   liable for any period that is open under the applicable
                   statute of limitations; or (b) a closing agreement pursuant
                   to Section 7121 of the Code or any similar provision of state
                   or local income tax law that relates to Canaan for the
                   current or any future taxable period. Canaan and the Canaan
                   Predecessors have not made an election under Section 341(f)
                   of the Code or agreed to have Section 341(f)(2) of the Code
                   apply to any disposition of a subsection (f) asset (as such
                   term is defined in Section 341(f)(4) of the Code) owned by
                   Canaan. Canaan is not a party to, is not bound by and has no
                   obligation under any tax sharing agreement or similar
                   agreement or arrangement. Canaan is not a party to any
                   agreement or other arrangement that would result separately
                   or in the aggregate in the payment of any "excess parachute
                   payments" within the meaning of Section 280G of the Code.

           3.14.4  There are no Liens for Taxes (other than for current Taxes
                   not yet due and payable) on the assets of Canaan.

           3.14.5  Canaan has never been a member of an "affiliated group of
                   corporations" within the meaning of Section 1504 of the Code,
                   other than as a common parent corporation.

           3.14.6  After the date hereof, no election which is inconsistent with
                   past practices with respect to Taxes will be made by Canaan
                   without the written consent of Parent.

                                      -20-



           3.14.7  None of the assets of Canaan are property that is required to
                   be treated as being owned by any other Person pursuant to the
                   "safe harbor lease" provisions of former Section 168(f)(8) of
                   the Code.

           3.14.8  None of the assets of Canaan directly or indirectly secures
                   any debt the interest on which is tax-exempt under Section
                   103(a) of the Code. None of the assets of Canaan is
                   "tax-exempt use property" within the meaning of Section
                   168(h) of the Code.

           3.14.9  Canaan has not agreed to make nor is it required to make any
                   adjustment under Section 481(a) of the Code by reason of a
                   change in accounting method or otherwise which will have any
                   adverse effect on any Tax for a period which ends after
                   December 31, 2000.

           3.14.10 Canaan and the Canaan Predecessors have not participated in
                   an international boycott within the meaning of Section 999 of
                   the Code.

           3.14.11 Canaan and the Canaan Predecessors have not had a permanent
                   establishment in any foreign country, as defined in any
                   applicable tax treaty or convention between the United States
                   and such foreign country.

           3.14.12 Section 3.14.12 of the Canaan Disclosure Schedule identifies
                   each arrangement to which Canaan is currently a party and
                   which is a partnership for federal income tax purposes and
                   which was required to file an income tax return for a taxable
                   year of such partnership which ended in 2001 (taking into
                   account any election which permitted such arrangement not to
                   file a return).

           3.14.13 Canaan did not have an excess loss account in any subsidiary
                   which had on December 31, 2001, assets with a fair market
                   value in excess of $500,000.

           3.14.14 Canaan is in compliance with all applicable laws, rules,
                   regulations and orders applicable to the Oil and Gas
                   Interests to the extent pertaining to escheatment or similar
                   laws affecting the payment of revenues except where the
                   failure to comply would not reasonably be expected to have a
                   Material Adverse Effect on Canaan.

     3.15  Employee Benefit Plans.
           ----------------------

           3.15.1  Section 3.15.1 of the Canaan Disclosure Schedule lists: (i)
                   the "employee benefit plans" (within the meaning of Section
                   3(3) of ERISA), which Canaan maintains or sponsors or with
                   respect to which Canaan has any material liability (actual or
                   contingent, primary or secondary); and (ii) all other (A)
                   director or employee compensation or benefit plans, programs
                   or arrangements, (B) stock purchase, stock option, severance,
                   bonus, incentive and deferred compensation plans, (C) written
                   employment or consulting contracts, and (D) change-in-control
                   agreements which Canaan maintains,

                                      -21-




                   sponsors or is a party to or with respect to which Canaan has
                   or could have any material liability (such plans, programs,
                   arrangements, contracts and agreements are collectively
                   referred to herein as the "Canaan Employee Benefit Plans").

           3.15.2  (i) The reserves reflected in the balance sheet contained in
                   the Canaan Financial Statements for the period ending
                   December 31, 2001 (together with all footnotes attached
                   thereto, the "Balance Sheet") relating to any unfunded
                   benefits under the Canaan Employee Benefit Plans were
                   adequate in the aggregate under GAAP as of December 31, 2001;
                   and (ii) Canaan has not incurred any material unfunded
                   liability in respect of any such Canaan Employee Benefit
                   Plans since that date.

           3.15.3  There are no suits, investigations or claims (other than
                   undisputed claims for benefits) pending or, to the knowledge
                   of Canaan threatened (or any basis therefor) relating to or
                   for benefits under the Canaan Employee Benefit Plans.

           3.15.4  Each Canaan Employee Benefit Plan has been established and
                   administered in all material respects in accordance with its
                   terms, and in all material respects in compliance with the
                   applicable provisions of ERISA, the Code and other applicable
                   laws, rules and regulations and each Canaan Employee Benefit
                   Plan which is intended to be qualified within the meaning of
                   Code Section 401(a) is so qualified.

           3.15.5  (i) No Canaan Employee Benefit Plan currently has any
                   "accumulated funding deficiency" as such term is defined in
                   ERISA Section 302 and Code Section 412 (whether or not
                   waived); (ii) no event or condition exists or is expected to
                   occur which is a reportable event within the meaning of ERISA
                   Section 4043 with respect to any Canaan Employee Benefit Plan
                   that is subject to Title IV of ERISA and with respect to
                   which the 30-day notice requirement has not been waived;
                   (iii) each member of Canaan's Controlled Group (as defined
                   below) has made all required premium payments when due to the
                   Pension Benefit Guaranty Corporation ("PBGC"); (iv) neither
                   Canaan nor any member of its Controlled Group is subject to
                   any liability to the PBGC for any Canaan Employee Benefit
                   Plan termination; (v) no amendment has occurred which
                   requires Canaan or any member of its Controlled Group to
                   provide security pursuant to Code Section 401(a)(29); and
                   (vi) neither Canaan nor any member of its Controlled Group
                   has engaged in a transaction which is reasonably likely to
                   subject it to liability under ERISA Section 4069. For the
                   purposes of this paragraph 3.15, the term "Controlled Group"
                   means all corporations, trades or businesses which, together
                   with Canaan, are treated as a single employer under Section
                   414 of the Code.

           3.15.6  No Canaan Employee Benefit Plan is a multiemployer plan
                   (within the meaning of Section 3(37) of ERISA) and neither
                   Canaan nor any member of its Controlled Group has incurred or
                   is reasonably likely to incur any liability

                                      -22-




                   to any multiemployer plan nor has or is engaged in a
                   transaction which is reasonably expected to subject Canaan
                   or any member of its Controlled Group to any liability under
                   ERISA Section 4212(c).

          3.15.7   Each Canaan Employee Benefit Plan described in subpart
                   3.15.1(i) above can be unilaterally terminated at any time by
                   Canaan without material liability to Canaan.

     3.16  Environmental Matters.
           ---------------------

           3.16.1  (i) The reserves reflected in the Canaan Financial Statements
                   relating to environmental matters were adequate under GAAP as
                   of December 31, 2001, and Canaan has not incurred any
                   liability in respect of any environmental matter since that
                   date which would reasonably be expected to have a Material
                   Adverse Effect; and (ii) the Canaan SEC Documents include all
                   information relating to environmental matters required to be
                   included therein under the rules and regulations of the SEC
                   applicable thereto.

          3.16.2   To the knowledge of Canaan, except for any matters which
                   would not reasonably be expected to have a Material Adverse
                   Effect: (i) each of Canaan and Canaan Predecessors has
                   conducted its business and operated its assets, and is
                   conducting its business and operating its assets, in
                   compliance with all Environmental Laws; (ii) Canaan has not
                   been notified by any Governmental Authority that any of the
                   operations or assets of Canaan is the subject of any
                   investigation or inquiry by any Governmental Authority
                   evaluating whether any material remedial action is needed to
                   respond to a release of any Hazardous Material or to the
                   improper storage or disposal (including storage or disposal
                   at offsite locations) of any Hazardous Material; (iii)
                   neither Canaan nor any other Person has filed any notice
                   under any federal, state or local law indicating that (A)
                   Canaan or any Canaan Predecessor is responsible for the
                   improper release into the environment, or the improper
                   storage or disposal of any Hazardous Material, or (B) any
                   Hazardous Material is improperly stored or disposed of upon
                   any property of Canaan or any Canaan Predecessor; (iv) Canaan
                   does not have any contingent liability in connection with a
                   release into the environment at or on the property now or
                   previously owned or leased by Canaan or any Canaan
                   Predecessor, or the storage or disposal of any Hazardous
                   Material; (v) neither Canaan or any of the Canaan Predecessor
                   has received any claim, complaint, notice, inquiry or request
                   for information which remains unresolved as of the date
                   hereof with respect to any alleged violation of any
                   Environmental Law or regarding potential liability under any
                   Environmental Law relating to operations or conditions of any
                   facilities or property owned, leased or operated by Canaan or
                   any Canaan Predecessor; (vi) there are no sites, locations or
                   operations at which Canaan is currently undertaking, or has
                   completed, any remedial or response action relating to any
                   such disposal or release, as required by Environmental Laws;
                   and (vii) all underground storage tanks and solid waste
                   disposal facilities owned or

                                      -23-



                   operated by Canaan are used and operated in material
                   compliance with Environmental Laws.

     3.17  Vote Required. The affirmative vote of the holders of a majority of
           -------------
           the outstanding shares of Canaan Common Stock voting as one class is
           the only vote of the holders of any class or series of Canaan capital
           stock or other voting securities necessary to approve this Agreement
           and the Merger. The affirmative vote of the holders of Canaan capital
           stock, or any of them, is not necessary to approve any of the
           Transaction Documents other than this Agreement or to consummate any
           transaction other than the Merger.

     3.18  Canaan Board of Directors Actions. The board of directors of Canaan
           ---------------------------------
           has by requisite vote of all directors present: (a) determined that
           the Merger is advisable; (b) approved the Merger in accordance with
           the provisions of Section 1081 of the OGCA and the transactions
           contemplated by this Agreement; and (c) recommended the approval of
           this Agreement and the Merger by the holders of Canaan Common Stock
           and directed that the Merger be submitted for consideration by the
           holders of Canaan Common Stock at a meeting of such stockholders
           contemplated by paragraph 5.4 hereof.

     3.19  Employment Contracts and Benefits. Except as otherwise provided for
           ---------------------------------
           in any Canaan Employee Benefit Plan: (a) Canaan is not subject to or
           obligated under any consulting, employment, severance, termination or
           similar arrangement, any employee benefit, incentive or deferred
           compensation plan with respect to any Person, or any bonus, profit
           sharing, pension, stock option, stock purchase or similar plan or
           other arrangement or other fringe benefit plan entered into or
           maintained for the benefit of employees or any other Person; and (b)
           no employee of Canaan, the Canaan Predecessor or any other Person
           owns, or has any rights granted by Canaan to acquire, any interest in
           any of the assets or business of Canaan. Section 3.19 of the Canaan
           Disclosure Schedule sets forth all indebtedness, promissory notes and
           other obligations owing by any employee, officer or non-employee
           director of Canaan including, without limitation, by any employee,
           officer or non-employee director, the principal amount thereof, the
           interest rate applicable thereto, any collateral securing payment
           thereof, the payment terms and the maturity date thereof.

     3.20  Labor Matters. No employees of Canaan are represented by any labor
           -------------
           organization. No labor organization or group of employees of Canaan
           has made a demand for recognition or certification as a union or
           other labor organization, and there are no representation or
           certification proceedings or petitions seeking a representation
           proceeding presently pending or threatened in writing to be brought
           or filed with the National Labor Relations Board or any other labor
           relations tribunal or authority. There are no organizing activities
           involving Canaan pending with any labor organization or group of
           employees of Canaan. Canaan is in material compliance with all laws,
           rules, regulations and orders relating to the employment of labor,
           including all such laws, rules, regulations and orders relating to
           wages, hours, collective bargaining, discrimination, civil rights,
           safety and health, workers' compensation and the collection and
           payment of withholding or social security Taxes and similar Taxes,
           except where

                                      -24-



                the failure to comply would not, individually or in the
                aggregate, reasonably be expected to have a Material Adverse
                Effect on Canaan.

         3.21   Insurance. Each of the insurance policies currently maintained
                ---------
                by Canaan is described in Section 3.21 of the Canaan Disclosure
                Schedule. Canaan maintains, and through the Closing Date will
                maintain, such insurance in full force and effect. Canaan may
                terminate each of its insurance policies or binders at or after
                the Closing and will incur no penalties or other material costs
                in doing so other than any short rate premium adjustments. None
                of such policies or binders was obtained through the use of
                false or misleading information or the failure to provide the
                insurer with all information requested in order to evaluate the
                liabilities and risks insured. There is no material default with
                respect to any provision contained in any such policy or binder,
                nor has Canaan failed to give any notice or present any claim
                under any such policy or binder in due and timely fashion. There
                are no billed but unpaid premiums past due under any such policy
                or binder. There (a) are no outstanding claims under any such
                policies or binders and, to the knowledge of Canaan, there has
                not occurred any event that might reasonably form the basis of
                any claim against or relating to Canaan that is not covered by
                any of such policies or binders; (b)is no notice of cancellation
                or non-renewal of any such policies or binders which has been
                received; and (c) no performance bonds outstanding with respect
                to Canaan.

         3.22   Intangible Property. There are no material trademarks, trade
                -------------------
                names, patents, service marks, brand names, computer programs,
                databases, industrial designs, copyrights or other intangible
                property that are necessary for the operation, or continued
                operation, of the business of Canaan or for the ownership and
                operation, or continued ownership or operation, of any of
                Canaan's assets, for which Canaan does not hold valid and
                continuing authority in connection with the use thereof. Section
                3.22 of the Canaan Disclosure Schedule lists each seismic
                agreement to which Canaan is a party.

         3.23   Title to Assets. Canaan has Defensible Title subject only to
                ---------------
                Permitted Encumbrances to: (1) all Oil and Gas Interests of
                Canaan included or reflected in the Ownership Interests and
                included in section 1.58 of the Canaan Disclosure Schedule as
                having proved reserves; (2) all other Oil and Gas Interests of
                Canaan as listed in section 3.23 of the Canaan Disclosure
                Schedule detailing the type of interest and general location;
                (30 all other assets owned by Canaan. Each Oil and Gas Interest
                included or reflected in the Ownership Interests entitles Canaan
                to receive not less than the undivided Net Revenue Interest set
                forth in (or derived from) the Ownership Interests of all
                Hydrocarbons produced, saved and sold from or attributable to
                such Oil and Gas Interest, and the portion of such costs and
                expenses of operation and development of such Oil and Gas
                Interest that is borne or to be borne by Canaan is not greater
                than the undivided Working Interest set forth in (or derived
                from) the Ownership Interests.

         3.24   Opinion of Financial Advisor. The board of directors of Canaan
                ----------------------------
                has received the opinion of CIBC World Markets, Inc., that, as
                of such date, the Per Share Merger Consideration to be received
                by the holders of Canaan Common Stock is fair to such holders
                from a financial point of view.

                                      -25-



         3.25   Oil and Gas Operations. (a) All wells included in the Oil and
                ----------------------
                Gas Interests of Canaan have been drilled and (if completed)
                completed, operated and produced in accordance with generally
                accepted oil and gas field practices and in compliance with
                applicable oil and gas leases and applicable laws, rules,
                regulations, except where the failure or violation would not
                reasonably be expected to have a Material Adverse Effect on
                Canaan; and (b) proceeds from the sale of Hydrocarbons produced
                from Canaan's Oil and Gas Interests are being received by Canaan
                in a timely manner and are not being held in suspense for any
                reason (except for amounts, individually or in the aggregate,
                not in excess of $250,000 held in suspense in the ordinary
                course of business).

         3.26   Financial and Commodity Hedging. Section 3.26 of the Canaan
                -------------------------------
                Disclosure Schedule accurately summarizes the outstanding
                Hydrocarbon and financial hedging positions of Canaan (including
                fixed price controls, collars, swaps, caps, hedges and puts) as
                of the date reflected on the Canaan Disclosure Schedule. After
                the date hereof, Canaan has not and will not enter into,
                terminate or modify any hedging positions without Parent's prior
                written consent, which will not be unreasonably withheld.

         3.27   Books and Records. All books, records and files of Canaan
                -----------------
                (including those pertaining to Canaan's Oil and Gas Interests,
                wells and other assets, the production, gathering,
                transportation and sale of Hydrocarbons, and corporate,
                accounting, financial and employee records): (a) have been
                prepared, assembled and maintained in accordance with usual and
                customary policies and procedures; and (b) fairly and accurately
                reflect the ownership, use, enjoyment and operation by Canaan of
                their respective assets.

         3.28   Other Entities. Canaan has no direct or indirect equity interest
                --------------
                in any corporation, partnership, limited liability company,
                joint venture, business association or other entity (other than
                joint venture, joint operating or ownership arrangements related
                to oil and gas activities entered into in the ordinary course of
                business or other partnerships that, individually or in the
                aggregate, are not material to the operations or businesses of
                Canaan).

         3.29   Account Information. Section 3.29 of the Canaan Disclosure
                -------------------
                Schedule contains an accurate list of the names and addresses of
                every bank and other financial institution in which Canaan
                maintains an account (whether checking, savings or otherwise),
                lock box or safe deposit box, and the account numbers and
                Persons having signature authority or legal access thereto.

         3.30   Powers of Attorney. There are no outstanding powers of attorney
                ------------------
                relating to or affecting Canaan.

         3.31   Plugging Status. All wells operated by Canaan or any Canaan
                ---------------
                Predecessor that have been permanently plugged and abandoned
                have been so plugged and abandoned in accordance in with all
                applicable requirements of each Governmental Authority having
                jurisdiction over Canaan and the Oil and Gas Interests except
                where failure to comply would not reasonably be expected to have
                a Material Adverse Effect.

                                      -26-



         3.32   No Knowledge of Breach of Representations. Canaan has no actual
                -----------------------------------------
                knowledge that any of the representations of Parent or Sub
                contained in this Agreement are untrue as of the date of this
                Agreement. If and to the extent that Canaan has any such
                knowledge as of the date of this Agreement, Canaan will not
                assert any remedy under this Agreement for breach of such
                representation (including, but not limited to, any right to not
                close the Merger due to a failure to satisfy the condition to
                Closing set forth in paragraph 6.3.1 arising solely as a result
                of any such breach).

         3.33   Proxy Statement. None of the information supplied or to be
                ---------------
                supplied by Canaan for inclusion or incorporation by reference
                in the Proxy Statement and any amendments or supplements thereto
                will, at the time the Proxy Statement or any amendment or
                supplement thereto is first mailed to stockholders of Canaan, at
                the time such stockholders vote on approval and adoption of this
                Agreement and at the Effective Time, contain any untrue
                statement of a material fact or omit to state any material fact
                required to be stated therein or necessary in order to make the
                statements made therein, in light of the circumstances under
                which they were made, not misleading. If at any time prior to
                Effective Time any event with respect to Canaan or Canaan's
                officers and directors occurs which is required to be described
                in an amendment of, or a supplement to, the Proxy Statement,
                such event will be so described, and such amendment or
                supplement will be promptly filed with the SEC and, as required
                by law, disseminated to the stockholders of Canaan. The Proxy
                Statement will comply as to form in all material respects with
                the provisions of the Exchange Act.

         3.34   Equipment. All equipment constituting part of the Oil and Gas
                ---------
                Interests operated by Canaan has been installed, maintained, and
                operated by Canaan as a prudent operator in accordance with oil
                and gas industry standards, and is currently in a state of
                repair so as to be adequate for normal operations by Canaan,
                except where the failure to do so would not, individually or in
                the aggregate, have a Material Adverse Effect on Canaan.

         3.35   Current Commitments. Section 3.35 of the Canaan Disclosure
                -------------------
                Schedule contains a true and reasonably complete list as of
                April 17, 2002, of all oral or written commitments for Canaan's
                portion of capital expenditures of more than $50,000 with
                respect to any of the Oil and Gas Interests for which all of the
                activities anticipated in such commitments are not reasonably
                expected to have been completed by the Effective Time. Except
                for those set forth in Section 3.35 of the Canaan Disclosure
                Schedule or as otherwise permitted by paragraph 5.1.10 of this
                Agreement, as of Closing there will be no oral or written
                commitments for capital expenditures with respect to the Oil and
                Gas Interests.

         3.36   Payout Balances, Gas Imbalances and Take or Pay. To the
                -----------------------------------------------
                knowledge of Canaan the Payout Balance for each well owned and
                operated by Canaan is properly reflected in Section 3.36 of the
                Canaan Disclosure Schedule as of the respective date(s) shown
                thereon. To the knowledge of Canaan, the Payout Balance for any
                such third-party operated well in which Canaan owns an interest
                is properly reflected in Section 3.36 of the Canaan Disclosure
                Schedule as of the respective date(s) shown thereon. "Payout

                                      -27-



           Balance(s)" means the status, as of the dates of the Canaan's
           calculations, of the recovery by Canaan or a third party of a cost
           amount specified in the contract relating to a well out of the
           revenue from such well where the Net Revenue Interest of Canaan
           therein will be reduced or the Working Interest therein will be
           increased when such amount has been recovered. With respect to the
           Oil and Gas Interests (a) there are no production, transportation or
           processing imbalances existing with respect to Canaan or the Oil and
           Gas Interests, and (b) Canaan have received no deficiency payments
           under gas contracts for which any party has a right to take
           deficiency gas from Canaan, nor has Canaan received any payments for
           production which are subject to refund or recoupment out of future
           production.

     3.37  Full Disclosure. The representations, warranties or other statements
           ---------------
           by Canaan in this Agreement or in the Canaan Disclosure Schedule or
           Exhibits hereto or any documents distributed generally to Canaan's
           stockholders, taken as a whole, do not contain any untrue statement
           of a material fact or omit to state a material fact necessary to make
           the statements contained therein not misleading.

     3.38  Certain Agreements. There are no contracts, agreements, arrangements
           ------------------
           or understandings to which Canaan is a party which create, govern or
           purport to govern the right of another party (other than Parent or
           Sub) to acquire Canaan.

     3.39  Affiliate Transactions. There are no transactions between Canaan and
           ----------------------
           any of Canaan's Affiliates, which are required to be disclosed in the
           Canaan SEC Documents which are not disclosed.

4.   Parent and Sub Representations and Warranties. Parent and Sub hereby
     ---------------------------------------------
jointly and severally represent and warrant to Canaan that:

     4.1   Organization and Standing. Each of Parent and Sub is a corporation
           -------------------------
           duly formed, validly existing and in good standing under the laws of
           the State of Oklahoma and has the corporate power and authority to
           own its property and to carry on its business as such business is now
           being conducted.

     4.2   Authority and Enforceability. Each of Parent and Sub has the
           ----------------------------
           requisite corporate power and authority to execute and deliver this
           Agreement and to consummate the transactions contemplated hereby. The
           execution and delivery of this Agreement and the consummation of the
           transactions contemplated hereby have been duly and validly
           authorized by all necessary corporate action on the part of Parent
           and Sub, including approval by the respective boards of directors of
           Parent and Sub and by Parent as the sole stockholder of Sub, and no
           other corporate proceedings on the part of Parent or Sub are
           necessary to authorize the execution or delivery of this Agreement or
           to consummate the transactions contemplated hereby. This Agreement
           has been duly and validly executed and delivered by each of Parent
           and Sub and (with respect to consummation of this Agreement and the
           Merger, assuming that this Agreement constitutes a valid and binding
           obligation of Canaan) constitutes a valid and binding

                                      -28-



           obligation of each of Parent and Sub, enforceable against Parent and
           Sub in accordance with its terms.

     4.3   No Restriction. Neither Parent nor Sub is subject to any order,
           --------------
           judgment or decree, or the subject of any litigation, claim or
           proceeding, pending or threatened, or any other restriction of any
           kind or character known to either Parent or Sub, which would affect
           its ability to carry out the transactions contemplated by this
           Agreement.

     4.4   Consents and Approvals. No consent, approval, order or authorization
           ----------------------
           of, registration, declaration, or filing with, or permit from, any
           Governmental Authority is required by or with respect to Parent or
           Sub in connection with the execution and delivery of this Agreement
           by Parent or Sub or the consummation by Parent and Sub of the
           transactions contemplated hereby except for the following: (a) any
           such consent, approval, order, authorization, registration,
           declaration, filing or permit which the failure to obtain or make
           would not, individually or in the aggregate, have a Material Adverse
           Effect; (b) the filing of the Certificate of Merger with the
           Secretary of State of Oklahoma pursuant to the provisions of the
           OGCA; (c) the filing, if necessary, of a pre-merger notification
           report by Parent under the HSR Act and the expiration or termination
           of the applicable waiting period; (d) the filing with the SEC of the
           Proxy Statement and such reports under Section 13(a) of the Exchange
           Act and such other compliance with the Exchange Act and the
           Securities Act and the rules and regulations of the SEC thereunder as
           may be required in connection with this Agreement and the
           transactions contemplated hereby and the obtaining from the SEC of
           such orders as may be so required; (e) such filings and approvals as
           may be required by any applicable state securities, "blue sky" or
           takeover laws or Environmental Laws; and (f) the valid approval of
           this Agreement and the Merger by the board of directors of Parent and
           Sub.

     4.5   Authorization. All corporate action on the part of each of Parent and
           -------------
           Sub, their directors and stockholders necessary for the transaction
           contemplated by this Agreement has been taken. This Agreement is
           legal, valid and binding with respect to each of Parent and Sub and
           is enforceable in accordance with its terms except as the
           enforceability thereof may be limited by bankruptcy, insolvency or
           similar laws affecting creditors' rights generally.

     4.6   Litigation. There are no actions, proceedings, or investigations
           ----------
           pending, or to the knowledge of Parent or Sub, any basis or threat
           thereof, which question the validity of this Agreement or any other
           action taken or to be taken in connection herewith or which would
           have a material adverse effect on the ability of either Parent or Sub
           to consummate the transactions contemplated hereby.

     4.7   Broker's or Finder's Fees. Neither Parent nor Sub has incurred any
           -------------------------
           liability, contingent or otherwise, for brokers' or finders' fees in
           respect of this Agreement for which either Canaan or any of its
           stockholders will have any responsibility whatsoever.

     4.8   Funding. Parent has available adequate funds or the means to obtain
           -------
           adequate funds in an aggregate amount sufficient to pay (a) all
           amounts required to be paid by Parent and

                                      -29-



           Sub under this Agreement including payment in full of all amounts
           under the Bank Credit Agreement; and (b) all expenses which have been
           or will be incurred by Parent or Sub in connection with this
           Agreement and the transactions contemplated hereby.

     4.9   Interim Operations of Sub. Sub was formed solely for the purpose of
           -------------------------
           engaging in the transactions contemplated by this Agreement and has
           not engaged in any business or activity (or conducted any operations)
           of any kind, entered into any agreement or arrangement with any
           Person, or incurred, directly or indirectly, any material liabilities
           or obligations, except in connection with its incorporation, the
           negotiation of this Agreement, the Merger and transactions
           contemplated hereby.

     4.10  Proxy Statement. None of the information supplied or to be supplied
           ---------------
           by Parent for inclusion or incorporation by reference in the Proxy
           Statement, and any amendments or supplements thereto will, at the
           time the Proxy Statement or any amendment or supplement thereto is
           first mailed to stockholders of Canaan, at the time such stockholders
           vote on approval and adoption of this Agreement and at the Effective
           Time, contain any untrue statement of a material fact or omit to
           state any material fact required to be stated therein or necessary in
           order to make the statements made therein, in light of the
           circumstances under which they were made, not misleading. If at any
           time prior to Effective Time any event with respect to any of the
           Parent Companies or their officers and directors will occur which is
           required to be described in an amendment of, or a supplement to, the
           Proxy Statement, such event will be so described, and such amendment
           or supplement will be promptly filed with the SEC and, as required by
           law, disseminated to the stockholders of Canaan.

     4.11  No Knowledge of Breach of Representations. Parent has no actual
           -----------------------------------------
           knowledge that any of Canaan's representations contained in this
           Agreement are untrue as of the date of this Agreement. If and to the
           extent that Parent has any such knowledge as of the date of this
           Agreement, Parent will not assert any remedy under this Agreement for
           breach of such representation (including, but not limited to, any
           right to not close the Merger due to a failure to satisfy the
           condition to Closing set forth in paragraph 6.2.1 arising solely as a
           result of any such breach).

     4.12  Prior Purchases. The Schedule 13D, as amended, filed by Parent
           ---------------
           pursuant to the Exchange Act with respect to prior purchases of
           Canaan Common Stock complies with the Exchange Act and all rules and
           regulations promulgated thereunder. Except as disclosed in the
           Schedule 13D as previously filed there are no other agreements or
           arrangements pursuant to which the sellers of the shares to the
           Parent are entitled to receive any additional consideration from any
           Parent Company or any Affiliate of the Parent.

5.   Covenants. From the date hereof until the Effective Time, Parent, Sub and
     ---------
Canaan hereby covenant and agree as follows:

     5.1   Conduct of Canaan Business Pending Closing. From the date hereof
           ------------------------------------------
           until the Effective Time, Canaan covenants and agrees that, unless
           Parent otherwise agrees in writing, the

                                      -30-



               businesses of Canaan will be conducted only in, and Canaan will
               not take any action except in, the ordinary course of business
               and in a manner consistent with past practice, and Canaan will
               use its reasonable best efforts to preserve substantially intact
               the business organization of Canaan, to keep available the
               services of the current officers, employees and consultants of
               Canaan and to preserve the goodwill of those current
               relationships of Canaan with customers, suppliers and other
               Persons with which Canaan have significant business relations. By
               way of amplification and not limitation, except as contemplated
               by this Agreement, Canaan will not, between the date of this
               Agreement and the Effective Time, directly or indirectly do, or
               propose to do, any of the following without the prior written
               consent of Parent:

               5.1.1   Amend or otherwise change the certificate of
                       incorporation or bylaws or equivalent organizational
                       documents of Canaan;

               5.1.2   Issue, sell, pledge, dispose of, grant, encumber, or
                       authorize the issuance, sale, pledge, disposition, grant
                       or encumbrance of: (a) any shares of any class of capital
                       stock of Canaan, or any options, warrants, convertible
                       securities or other rights of any kind to acquire any
                       shares of such capital stock, or any other ownership
                       interest (including, without limitation, any phantom
                       interest), of Canaan (except for the issuance of shares
                       of Canaan Common Stock issuable pursuant to Canaan Stock
                       Options outstanding on the date hereof and disclosed in
                       the Canaan Disclosure Schedule); or (b) any assets of
                       Canaan, except for sales of oil and gas production in the
                       ordinary course of business;

               5.1.3   Declare, set aside, make or pay any dividend or other
                       distribution, payable in cash, stock, property or
                       otherwise, with respect to any of its capital stock;

               5.1.4   Reclassify, combine, split, subdivide or redeem, purchase
                       or otherwise acquire, directly or indirectly, any capital
                       stock or amend or modify any warrant or other right to
                       acquire any capital stock;

               5.1.5   (a) Acquire (including, without limitation, by formation,
                       merger, consolidation, or acquisition of stock or assets)
                       any interest in any corporation, partnership, other
                       business organization or any division thereof or any
                       material amount of assets other than in the ordinary
                       course of business; (b) incur any indebtedness for
                       borrowed money in excess of the existing borrowing base
                       under the current Bank Credit Agreement or issue any debt
                       securities or assume, guarantee or endorse, or otherwise
                       as an accommodation become responsible for, the
                       obligations of any Person, or make any loans, advances or
                       capital contribution to, or investments in, any other
                       Person, except in the ordinary course of business and
                       consistent with past practice, but in no event in excess
                       of $100,000; or (c) enter into or amend any contract,
                       agreement, commitment or arrangement with respect to any
                       matter set forth in this paragraph 5.1.5;

                                       31



               5.1.6   Increase the compensation payable or to become payable to
                       any officers or employees, except for increases in
                       accordance with past practices in salaries or wages of
                       employees of Canaan who are not officers of Canaan, or
                       grant any severance or termination pay to, or enter into
                       any employment or severance agreement with, any director,
                       officer or other employee of Canaan (except as permitted
                       by this Agreement), or establish, adopt, enter into,
                       modify or amend any collective bargaining, bonus, profit
                       sharing, thrift, compensation, stock option, restricted
                       stock, pension, retirement, deferred compensation,
                       employment, termination, severance phantom stock plan or
                       other plan, agreement, trust, fund, policy or arrangement
                       for the benefit of any director, officer or employee;

               5.1.7   Make any material Tax election or settle or compromise
                       any material federal, state, local or foreign Tax
                       liability;

               5.1.8   Pay, discharge or satisfy any claim, liability or
                       obligation (absolute, accrued, asserted or unasserted,
                       contingent or otherwise), other than the payment,
                       discharge or satisfaction, in the ordinary course of
                       business and consistent with past practice, of
                       liabilities reflected or reserved against in the Canaan
                       Financial Statements or subsequently incurred in the
                       ordinary course of business and consistent with past
                       practices;

               5.1.9   Settle or compromise any pending or threatened suit,
                       action or claim which is material or which relates to any
                       of the transactions contemplated hereby, except if such
                       settlement or compromise would not have a Material
                       Adverse Effect;

               5.1.10  Undertake or agree to: (a) any capital commitment outside
                       Arkansas, Oklahoma and Texas (the "Canaan Area"); (b) any
                       new land or lease initiatives or acquisitions; (c) any
                       capital expenditures in the Canaan Area in an individual
                       amount greater than $10,000 net to Canaan's interest or,
                       when aggregated with all other capital commitments, in an
                       aggregate amount greater than $200,000 net to Canaan's
                       interest unless such capital expenditure is in an oil and
                       gas well proposed by a Parent Company, proposed by a
                       third party and participated in by a Parent Company or
                       approved by the Parent; or (d) any new well proposals or
                       regulatory or governmental action with respect to any
                       well activities, provided however, Canaan agrees to
                       provide notice to the Parent of any new well proposal
                       within three (3) days after receipt and the Parent will
                       have fifteen (15) days thereafter to consent to the
                       proposal, in which case Canaan will participate in such
                       well proposal (to the extent Canaan is required to act in
                       a shorter time period the notice and response periods
                       will be shortened so that Parent will be provided a
                       minimum of 24 hours to consent);

                                       32



               5.1.11  Make any change in accounting methods, principles or
                       practices materially affecting the reported consolidated
                       assets, liabilities or results of operations of Canaan,
                       except insofar as may have been required by a change in
                       GAAP;

               5.1.12  Make, enter into or renew, extend, amend, modify, or
                       waive any provisions of any Canaan Material Agreement or
                       any other material commitment or relinquish or waive any
                       Canaan Material Agreement rights or agree to the
                       termination of any material Canaan Material Agreement,
                       except in the ordinary course of business consistent with
                       prior practice;

               5.1.13  Agree to any covenant of Canaan not to compete (other
                       than pursuant to any radius restriction contained in any
                       lease, reciprocal easement or development, construction,
                       operating or similar agreement) or any other covenant
                       restricting the development, manufacture, marketing or
                       distribution of the products and services of Canaan or
                       otherwise limiting the freedom of Canaan to compete in
                       any line of business or with any Person or in any area or
                       to own, operate, sell, transfer, pledge or otherwise
                       dispose of or encumber any material assets or which would
                       so limit the freedom of Parent or any of its Affiliates
                       after the consummation of the Merger;

               5.1.14  Amend, modify, terminate, waive or permit to lapse any
                       material right of first refusal, preferential right,
                       right of first offer or any other material right of
                       Canaan; or

               5.1.15  Take or offer or propose to take, or agree to take in
                       writing, or otherwise, any of the actions described in
                       paragraphs 5.1.1 through 5.1.14 of this paragraph 5.1 or
                       any action which would result in any of the conditions to
                       the Merger not being satisfied.

          5.2  Access to Information. Canaan will afford to Parent and Parent
               ---------------------
               Representatives (including, without limitation, directors,
               officers and employees of Parent and its Affiliates, and counsel,
               accountants and other professionals retained by Parent) such
               access, during normal business hours throughout the period prior
               to the Effective Time, to Canaan's books, records (including,
               without limitation, Tax returns and work papers of Canaan's
               independent auditors), properties, personnel and to such other
               information as Parent reasonably requests and will permit Parent
               to make such inspections as Parent may reasonably request and
               will cause the officers of all of Canaan to furnish Parent with
               such financial and operating data and other information with
               respect to the business, properties and personnel of Canaan as
               Parent may from time to time reasonably request, provided,
               however, that no investigation pursuant to this paragraph 5.2
               will affect or be deemed to modify any of the representations or
               warranties made by Canaan in this Agreement. All information
               exchanged pursuant to this paragraph 5.2 will be subject to the
               Confidentiality Agreement.

          5.3  No Solicitation. Immediately following the execution of this
               ---------------
               Agreement, Canaan:

                                       33



               5.3.1   Will (and will cause each of the Canaan Representatives
                       to) terminate any and all existing activities,
                       discussions and negotiations with third parties (other
                       than Parent) with respect to any possible transaction
                       involving any proposal to acquire all or any part of the
                       Canaan Common Stock or all or a material portion of the
                       assets, business or equity interests of Canaan (other
                       than the transactions contemplated by this Agreement),
                       whether by merger, purchase of assets, tender offer,
                       exchange offer or otherwise.

               5.3.2   Will not (and will cause the Canaan Representatives not
                       to): (a) solicit, initiate or encourage the submission
                       of, any offer or proposal to acquire any of the Canaan
                       Common Stock (other than the exercise of Canaan Stock
                       Options) or all or any material portion of the assets,
                       business or equity interests of Canaan or any other
                       transaction the consummation of which would or could
                       reasonably be expected to impede, interfere with, prevent
                       or materially delay the consummation of the Merger (other
                       than the transactions contemplated by this Agreement),
                       whether by merger, purchase of assets, tender offer,
                       exchange offer or otherwise (an "Alternative Proposal");
                       (b) engage in negotiations or discussions concerning or
                       provide any non-public information to any Person relating
                       to an Alternative Proposal; or (c) agree to, approve or
                       recommend, or otherwise facilitate any effort or attempt
                       to make or implement, any Alternative Proposal, or
                       withdraw its recommendation of the Merger, provided,
                       however, that: (i) Canaan's board of directors may take
                       and disclose to the stockholders of Canaan a position
                       contemplated by Rules 14d-9 or 14e-2(a) promulgated under
                       the Exchange Act with regard to an Alternative Proposal;
                       and (ii) following receipt from a third party (without
                       any solicitation, initiation or encouragement by Canaan
                       or any Canaan Representatives) of a bona fide written
                       Alternative Proposal, (x) Canaan may, upon written notice
                       to Parent, engage in discussions or negotiations with
                       such third party and may furnish such third party
                       non-public information concerning Canaan, and Canaan's
                       business, properties and assets if, prior to furnishing
                       such information to such third party, such third party
                       executes a confidentiality agreement not materially less
                       favorable to Canaan than the Confidentiality Agreement
                       (but containing provisions permitting Canaan to comply
                       with paragraphs 5.3.2 and 5.3.3 hereof) and (y) the board
                       of directors of Canaan may recommend such Alternative
                       Proposal or withdraw, modify or not make its
                       recommendation referred to in paragraph 3.18, if and only
                       to the extent that Canaan's board of directors determines
                       in good faith that: (1) based on the advice of Canaan's
                       counsel, the failure to recommend such Alternative
                       Proposal would constitute a breach of the board's
                       fiduciary duties; and (2) based on the advice of Canaan's
                       financial advisor, such Alternative Proposal, if
                       consummated, would result in a transaction more favorable
                       to Canaan's stockholders from a financial point of view
                       than the transaction contemplated by this Agreement (a
                       "Superior Proposal") and the Person making such Superior
                       Proposal has the financial means, or the ability to
                       obtain the necessary financing, to conclude such
                       transaction.

                                       34





          5.3.3  Will promptly notify Parent after receipt by Canaan or any of
                 the Canaan Representatives of any Alternative Proposal, any
                 inquiries indicating that any Person is considering making or
                 wishes to make an Alternative Proposal or any requests for
                 nonpublic information and the terms and conditions of any
                 proposals or offers and the status of any actions, including
                 any discussions, taken pursuant to such Alternative Proposal.
                 Canaan agrees that it will keep Parent informed, on a current
                 basis, of the status and terms of any such Alternative Proposal
                 and of any discussions or negotiations regarding same.

          5.3.4  Will use Canaan's best efforts to cause each of the Irrevocable
                 Proxies to be executed and delivered to Parent simultaneously
                 with the execution of this Agreement, all in form and substance
                 satisfactory to Parent and its legal counsel.

          Nothing in this paragraph 5.3 will permit Canaan to terminate this
          Agreement or to change or withdraw its recommendation except as
          specifically provided in paragraph 7.1.

     5.4  Canaan Stockholder Meeting. As promptly as practicable after the date
          --------------------------
          hereof, Canaan will: (a) take all action necessary in accordance with
          applicable law and its certificate of incorporation and bylaws to
          convene a meeting of its stockholders for the purpose of voting on
          this Agreement and the Merger; (b) distribute to its stockholders the
          Proxy Statement in accordance with applicable federal and state law
          and with its certificate of incorporation and bylaws, which Proxy
          Statement will contain the recommendation of the board of directors of
          Canaan that its stockholders approve the merger; (c) use all
          reasonable efforts to solicit from its stockholders proxies in favor
          of the approval and adoption of the Merger, this Agreement and the
          transactions contemplated hereby and to secure the Canaan stockholders
          approval; and (d) cooperate and consult with Parent with respect to
          each of the foregoing matters; provided, that nothing in this
          paragraph will prohibit the board of directors of Canaan from failing
          to make or from withdrawing or modifying its recommendation to
          Canaan's stockholders hereunder to the extent permitted by paragraph
          5.3.2 of this Agreement.

     5.5  Proxy Statement. With respect to the Proxy Statement, the Parties
          ---------------
          agree that:

          5.5.1  Parent and Canaan will cooperate and promptly prepare a
                 preliminary Proxy Statement and Canaan will file the
                 preliminary Proxy Statement with the SEC as soon as practicable
                 after the date hereof.

          5.5.2  Parent and Canaan will cause the Proxy Statement, at the time
                 it is delivered to the Canaan stockholders, to comply as to
                 form in all material respects with the applicable provisions of
                 the Securities Act, the Exchange Act and the rules and
                 regulations of the SEC thereunder.

          5.5.3  Canaan hereby covenants and agrees with Parent that the Proxy
                 Statement (at the time it is first mailed to stockholders of
                 Canaan, at the time of the Canaan

                                      -35-



                 Stockholder Meeting, and at the Effective Time) will not
                 contain an untrue statement of a material fact or omit to state
                 a material fact required to be stated therein or necessary in
                 order to make the statements therein, in light of the
                 circumstances under which they are made, not misleading. If, at
                 any time prior to the Effective Time, any event with respect to
                 Canaan, or with respect to other information included in the
                 Proxy Statement, occurs and such event is required to be
                 described in a supplement to the Proxy Statement, such event
                 will be so described and such supplement will be promptly
                 prepared, filed and disseminated.

          5.5.4  Parent hereby covenants and agrees with Canaan that the Proxy
                 Statement (at the time it is first mailed to stockholders of
                 Canaan, at the time of the Canaan Stockholder Meeting, and at
                 the Effective Time) will not contain an untrue statement of a
                 material fact or omit to state a material fact required to be
                 stated therein or necessary in order to make the statements
                 therein, in light of the circumstances under which they are
                 made, not misleading (provided, however, that this provision
                 will only apply to any information contained in the Proxy
                 Statement that was supplied by Parent specifically for
                 inclusion therein). If, at any time prior to the Effective
                 Time, any event with respect to Parent, or with respect to any
                 information concerning Parent included in the Proxy Statement,
                 occurs and such event is required to be described in a
                 supplement to the Proxy Statement, such event will be disclosed
                 to Canaan to be so described and such supplement will be
                 promptly prepared, filed and disseminated.

          5.5.5  Neither the Proxy Statement nor any amendment or supplement
                 thereto will be filed or disseminated to the stockholders of
                 Canaan without the approval of both Parent and Canaan which
                 approval will not be unreasonably withheld.

     5.6  Public Announcements. Prior to Closing, Canaan will consult with
          --------------------
          Parent before issuing any press release or otherwise making any public
          statements with respect to the transactions contemplated by this
          Agreement and will not issue any press release or make any such public
          statement prior to obtaining the approval of Parent; provided,
          however, that such approval will not be required where such release or
          announcement is required by applicable law; and provided further, that
          Canaan may respond to inquiries by the press or others regarding the
          transactions contemplated by this Agreement, so long as such responses
          are consistent with previously issued press releases.

     5.7  Notification of Certain Matters. Canaan will give prompt notice to
          -------------------------------
          Parent of: (a) any representation or warranty of Canaan contained in
          this Agreement being untrue or inaccurate when made; (b) the
          occurrence of any event or development that would cause (or could
          reasonably be expected to cause) any representation or warranty of
          Canaan contained in this Agreement to be untrue or inaccurate on the
          Closing Date; or (c) any failure of Canaan to comply with or satisfy
          any covenant, condition, or agreement to be complied with or satisfied
          by it hereunder. Parent will give prompt

                                      -36-



          notice to Canaan of: (i) any representation or warranty of Parent
          contained in this Agreement being untrue or inaccurate when made; (ii)
          the occurrence of any event or development that would cause (or could
          reasonably be expected to cause) any representation or warranty of
          Parent contained in this Agreement to be untrue or inaccurate on the
          Closing Date; or (iii) any failure of Parent to comply with or satisfy
          any covenant, condition, or agreement to be complied with or satisfied
          by it hereunder.

     5.8  Indemnification.  From and after the Effective Time, Parent agrees
          ---------------
          that:

          5.8.1  Parent will indemnify and hold harmless each present and former
                 director and/or officer of Canaan, determined as of the
                 Effective Time (the "Indemnified Parties"), that is made a
                 party or threatened to be made a party to any threatened,
                 pending or completed, action, suit, proceeding or claim,
                 whether civil, criminal, administrative or investigative, by
                 reason of the fact that he or she was a director or officer of
                 Canaan prior to the Effective Time and arising out of actions
                 or omissions of the Indemnified Party in any such capacity
                 occurring at or prior to such Effective Time (a "Claim")
                 against any costs or expenses (including reasonable attorneys'
                 fees), judgments, fines, losses, claims, damages or liabilities
                 reasonably incurred in connection with any Claim, whether
                 asserted or claimed prior to, at or after the Effective Time,
                 to the fullest extent that Canaan would have been permitted
                 under Oklahoma law, the certificate of incorporation or bylaws
                 of Canaan or written indemnification agreements in effect at
                 the date hereof, including provisions therein relating to the
                 advancement of expenses incurred in the defense of any action
                 or suit.

          5.8.2  Any Indemnified Party wishing to claim indemnification under
                 paragraph 5.8.1, upon learning of any such Claim, will promptly
                 notify Parent thereof, but the failure to so notify Parent will
                 not relieve Parent of any liability it may have to such
                 Indemnified Party if such failure does not materially prejudice
                 Parent. In the event of any such Claim (whether arising before
                 or after the Effective Time): (a) Parent will have the right to
                 assume the defense thereof and Parent will not be liable to
                 such Indemnified Party for any legal expenses of other counsel
                 or any other expenses subsequently incurred by such Indemnified
                 Party in connection with the defense thereof, except that if
                 Parent elects not to assume such defense, the Indemnified Party
                 may retain counsel reasonably satisfactory to Parent, and
                 Parent will pay reasonable fees and expenses of such counsel
                 for the Indemnified Party; provided, however, that Parent will
                 be obligated pursuant to this paragraph 5.8.2 to pay for only
                 one firm or counsel for all Indemnified Parties unless the use
                 of one counsel for such Indemnified Parties would present such
                 counsel with a conflict of interest; (b) such Indemnified
                 Parties will cooperate in the defense of any such matter; and
                 (c) Parent will not be liable for any settlement effected
                 without its prior written consent, which consent will not be
                 unreasonably withheld; and provided, further, however, that
                 Parent will not have any obligation hereunder to any
                 Indemnified Party when and if a court of competent jurisdiction
                 will

                                      -37-



                  ultimately determine, and such determination will have become
                  final and non-appealable, that the indemnification of such
                  Indemnified Party in the manner contemplated hereby is
                  prohibited by applicable law. If such indemnity is not
                  available with respect to any Indemnified Party, then Parent
                  and the Indemnified Party will contribute to the amount
                  payable in such proportion as is appropriate to reflect
                  relative faults and benefits, with any allocation of
                  respective "fault" otherwise allocable to Canaan being
                  allocated to Parent.

          5.8.3   The rights of each Indemnified Party shall be in addition to
                  any other rights such Indemnified Party may have under the
                  certificate of incorporation or bylaws of Canaan, under the
                  OGCA, under existing indemnification agreements, or otherwise,
                  all of which will be assumed by the Surviving Corporation.

          5.8.4   In the event Parent or any of its successors or assigns (i)
                  consolidates with or merges into any other Person and shall
                  not be the continuing or surviving corporation or entity in
                  such consolidations or merger or (ii) transfers all or
                  substantially all of its properties and assets to any Person,
                  then and in either case, proper provisions shall be made so
                  that the successors and assigns of Parent, as case may be,
                  shall assume the obligations as set forth in this paragraph.

          5.8.5   The provisions of this paragraph 5.8 shall survive
                  consummation of the Merger and expressly are intended to
                  benefit each of the Indemnified Parties.

     5.9  Employee and Severance Matters.
          ------------------------------

          5.9.1   Attached as Section 5.9 of the Canaan Disclosure Schedule is:
                  (1) a current list of each of Canaan's employees (the "Canaan
                  Employees"); (2) a copy of Canaan's severance policy (the
                  "Canaan Severance Policy"); (3) a severance package table
                  which lists the cost of all severance pay to be paid to each
                  of the Canaan Employees; (4) a list of Canaan Employees with
                  written employment agreements (the "Contract Employees"); (5)
                  a list of all contract pumpers and other independent
                  contractors (the "Independent Contractors") and a summary of
                  the terms of such arrangements including, without limitation,
                  any severance package; and (6) a list of each of the Canaan
                  Employees with change in control agreements ("CIC Employees")
                  together with the amounts and terms of such change in control
                  agreements.

          5.9.2   On or immediately prior to the Closing Date, Canaan will pay
                  the amounts payable to the CIC Employees under the applicable
                  change in control agreements in an amount not to exceed the
                  amounts disclosed in the Canaan Disclosure Schedule, provided
                  the CIC Employee has tendered the CIC Employee's resignation
                  and executed all other documents and taken all actions
                  required under this Agreement, the change of control agreement
                  or the CIC Employee's employment agreement. Canaan will also
                  pay the severance pay

                                      -38-



                  as indicated on the severance package table to the Canaan
                  Employees. Notwithstanding the immediately preceding sentence,
                  Canaan will not pay such severance pay to: (1) any Canaan
                  Employee who is not a Contract Employee and to whom Parent or
                  Sub offers a substantially comparable job (as determined by
                  Parent in its reasonable discretion) with equal or better base
                  salary at such employee's current location; (2) any Contract
                  Employee who chooses not to terminate his employment agreement
                  with Canaan on the Closing Date; (3) any Independent
                  Contractor who is covered by the Canaan Severance Policy and
                  chooses not to terminate his contract with Canaan on the
                  Closing Date; or (4) any Canaan Employee who does not execute
                  a severance agreement in substantially the form required by
                  the Canaan Severance Policy. With respect to any Canaan
                  Employee who is not paid severance pay on or immediately prior
                  to the Effective Date, all the terms and provisions of the
                  Canaan Severance Policy and the Contract Employees' employment
                  agreements will continue in full force and effect. Parent
                  shall provide funding to Canaan at the Closing sufficient in
                  amount for Canaan to make all payments required or permitted
                  by this paragraph 5.9.2.

          5.9.3   Neither Canaan nor Parent is under any obligation to retain or
                  hire any Canaan Employee after the Effective Time. At least
                  five (5) days before the Closing Date, Parent will provide to
                  Canaan a list of those Canaan Employees to whom an offer of
                  employment has been or will be made to be effective on the day
                  after the Closing Date. On reasonable prior notice during
                  normal business hours, Parent and the Parent Representatives
                  will be given reasonable access to the facilities and to
                  personnel, safety and other relevant records of Canaan (to the
                  extent access to such records does not violate any law or the
                  legitimate privacy rights of the Canaan Employee concerned)
                  for the purpose of preparing for and conducting employment
                  interviews with any Canaan Employees. Canaan will be
                  responsible for and pay, on or before the Closing Date, any
                  and all severance or other payments due to the Canaan
                  Employees.

          5.9.4   To the extent legally required by COBRA, for a period of 18
                  months following the Effective Time, Parent will, or will
                  cause the Surviving Corporation to: (a) maintain Canaan's
                  health benefit plans for the benefit of the continuing and
                  terminated Canaan Employees; or (b) provide such continuing
                  and terminated Canaan Employees with the rights and benefits
                  of Parent's employee health benefit plans; provided, that
                                                             --------
                  Parent will not be required to pay, or cause the Surviving
                  Corporation to pay, the premiums for coverage under such plans
                  for any terminated Canaan Employee. Parent will, or will cause
                  the Surviving Corporation to, fulfill all coverage
                  continuation obligations imposed by Section 4980B of the Code
                  and Section 601 of ERISA for those Canaan Employees who are
                  not retained by Parent or the Surviving Corporation. The
                  provisions of this Section 5.9.4 are intended to be for the
                  benefit of, and will be enforceable by, the Parties and the
                  Canaan Employees covered by the Employee Plans at the
                  Effective Time and their respective heirs and representatives.

                                      -39-



          5.9.5   The Parent shall give to all Canaan employees who continue
                  their employment with a Parent Company or the Surviving
                  Corporation after the Effective Time ("Affected Employees")
                  the opportunity to participate in all employee benefit plans
                  maintained by Parent for its employees generally and shall
                  give full credit for their continuous service with Canaan
                  (including deemed service credited by Canaan) for purposes of
                  eligibility to participate in vesting (but not benefit
                  accruals under any defined benefit pension plan) under all
                  employee benefit plans, programs, policies or arrangements
                  which are maintained by Parent or any Parent Company for such
                  Affected Employees to the same extent recognized by Canaan
                  immediately prior to the Effective Time under any similar
                  Canaan Employee Benefit Plans. Parent and the Surviving
                  Corporation shall (i) waive all limitations as to pre-existing
                  conditions, exclusions and waiting periods with respect to
                  participation and coverage requirements applicable to the
                  Affected Employees under any welfare benefit plan, that such
                  employees may be eligible to participate in after the
                  Effective Time (other than limitations or waiting periods that
                  are already in effect with respect to any such employees under
                  the Canaan plans and that have not been satisfied as of the
                  Effective Time) and (ii) provide each Affected Employee with
                  credit for any co-payments and deductibles paid prior to the
                  Effective Time (in the calendar year of the Effective Time)
                  and satisfying any applicable deductible or out-of-pocket
                  requirements for the year in which the Effective Time occurred
                  under any welfare plans that such employees are eligible to
                  participate in after the Effective Time. For any Affected
                  Employee who is terminated without cause within six months
                  following the Effective Time, such Affected Employee shall
                  receive a severance payment equal to the greater of the amount
                  payable under the Canaan Severance Policy or any Parent
                  severance plan or policy applicable to employees generally.

          5.9.6   Canaan will use its best efforts to cause Canaan's Profit
                  Sharing Plan and Indian Oil's 401(k) to be terminated
                  immediately prior to the Closing with the result that all
                  participants therein shall be 100% vested. The Parent shall
                  cause the Surviving Corporation to take all of such action as
                  is necessary as promptly as reasonably possible to receive IRS
                  approval for the termination of such plans and promptly
                  thereafter to distribute to the participants in the plans all
                  amounts that they are entitled to receive under the plans.
                  Parent will permit Affected Employees receiving distributions
                  from the Canaan Profit Sharing Plan to be eligible for
                  rollover contributions to any similar plans maintained by the
                  Parent and will permit any outstanding plan loans that are in
                  compliance with the applicable plan and the applicable law to
                  be continued.

     5.10 Reasonable Best Efforts. Upon the terms and subject to the conditions
          -----------------------
          set forth in this Agreement, each of the Parties will use all
          reasonable best efforts to take, or cause to be taken, all actions,
          and to do, or cause to be done, and to assist and cooperate with the
          other Parties in doing, all things necessary, proper or advisable to
          consummate and make effective, in the most expeditious manner
          practicable, the Merger and the other transactions contemplated
          hereby, including: (a) the obtaining of all necessary actions

                                      -40-




          or non-actions, waivers, consents and approvals from Governmental
          Authorities and the making of all necessary registrations and filings
          (including filings with Governmental Authorities, if any) and the
          taking of all reasonable steps as may be necessary to obtain an
          approval or waiver from, or to avoid an action or proceeding by, any
          Governmental Entity; (b) the obtaining of all necessary consents,
          approvals or waivers from third parties; (c) the defending of any
          lawsuits or other legal proceedings, whether judicial or
          administrative, challenging the Transaction Documents or the
          consummation of the transactions contemplated hereby, including
          seeking to have any stay or temporary restraining order entered by any
          court or other Governmental Entity vacated or reversed; and (d) the
          execution and delivery of any additional instruments necessary to
          consummate the Merger and to fully carry out the purposes of the
          Transaction Documents. In connection with and without limiting the
          foregoing, the Canaan and Canaan's board of directors will: (i) take
          all action necessary to ensure that no state takeover statute or
          similar statute or regulation is or becomes applicable to the Merger
          or the Transaction Documents; and (ii) if any state takeover statute
          or similar statute or regulation becomes applicable to the Merger or
          the Transaction Documents, take all action necessary to ensure that
          the Merger and the other transactions contemplated hereby may be
          consummated as promptly as practicable on the terms contemplated by
          the Transaction Documents and otherwise to minimize the effect of such
          statute or regulation on the Merger.

     5.11 Stock Options.
          -------------

          5.11.1  As soon as practicable following the date of this Agreement,
                  Canaan's board of directors (or, if appropriate, any committee
                  administering the Canaan Plans) will adopt such resolutions or
                  take such other actions as are required to adjust the terms of
                  all outstanding Canaan Stock Options granted under any Canaan
                  Plan to confirm that each of the Canaan Stock Options
                  outstanding immediately prior to the acceptance for payment of
                  shares of Canaan Common Stock pursuant to the terms of this
                  Agreement will be canceled, with the holder thereof becoming
                  entitled to receive an amount of cash equal to the product of
                  (a) the excess, if any, of (i) the Per Share Merger
                  Consideration over (ii) the exercise price per share of Canaan
                  Common Stock subject to such Canaan Stock Option, multiplied
                  by (b) the number of shares of Canaan Common Stock issuable
                  pursuant to the unexercised portion of such Canaan Stock
                  Option. Subject to the Closing of the Merger, Parent agrees to
                  provide any funding out of the Merger Consideration necessary
                  to make the foregoing payments.

          5.11.2  All amounts payable pursuant to paragraph 5.11.1 will be
                  subject to any required withholding of Taxes and will be paid
                  at or as soon as practicable at or following the Effective
                  Time, but in any event within seven days following the
                  Effective Time, without interest. The cancellation of a Canaan
                  Stock Option in exchange for the cash payment described in
                  paragraph 5.11.1 will be deemed a release of any and all
                  rights the holder of such Canaan Stock Option had or may have
                  had in respect thereof.

                                      -41-



          5.11.3  As soon as practicable following the date of this Agreement,
                  Canaan's board of directors (or, if appropriate, any committee
                  administering the Canaan Plans) will take or cause to be taken
                  such actions as are required to cause (i) the Canaan Plans to
                  terminate as of the Effective Time and (ii) the provisions in
                  any other plan, program or agreement providing for the
                  issuance, transfer or grant of any capital stock of Canaan or
                  any interest in respect of any capital stock of Canaan to be
                  terminated as of the Effective Time. Canaan will ensure that
                  following the Effective Time no holder of a Canaan Stock
                  Option or any participant in any Canaan Plan or other benefit
                  plan, program or agreement will have any right thereunder to
                  acquire any capital stock of Canaan or the Surviving
                  Corporation.

     5.12 Stockholder Litigation. Canaan will give Parent the opportunity to
          ----------------------
          participate in the defense or settlement of any stockholder litigation
          against Canaan and its directors relating to the Merger and Canaan
          will not agree to any settlement of such litigation without Parent's
          consent.

     5.13 Further Assurances. At and after the Effective Time, the officers and
          ------------------
          directors of the Surviving Corporation will be authorized to execute
          and deliver, in the name and on behalf of Canaan or Sub, any deeds,
          bills of sale, assignments or assurances and to take and do, in the
          name and on behalf of Canaan or Sub, any other actions and things to
          vest, perfect or confirm of record or otherwise in the Surviving
          Corporation any and all right, title and interest in, to and under any
          of the rights, properties or assets of Canaan acquired or to be
          acquired by the Surviving Corporation as a result of, or in connection
          with, the Merger.

     5.14 Rights Agreement; Consequences if Rights Triggered. Canaan's board of
          --------------------------------------------------
          directors will take all action requested in writing by Parent in order
          to render the Canaan Rights inapplicable to the Merger and the
          transactions contemplated by this Agreement. Except as approved in
          writing by Parent, Canaan's board of directors will not (i) amend the
          Canaan Rights Agreement, (ii) redeem the Canaan Rights or (iii) take
          any action with respect to, or make any determination under, the
          Canaan Rights Agreement, in each case in a manner adverse to Parent or
          Sub. If any triggering event occurs under the Canaan Rights Agreement
          at any time during the period from the date of this Agreement to the
          Effective Time, Canaan and Parent will make such adjustment to the Per
          Share Merger Consideration as Canaan and Parent will mutually agree so
          as to preserve the economic benefits that Canaan and Parent each
          reasonably expected on the date of this Agreement to receive as a
          result of the consummation of the Merger and the other transactions.

     5.15 Payment of Expenses. Except as set forth in this paragraph 5.15, all
          -------------------
          expenses incurred in connection with this Agreement will be paid by
          the party incurring such expenses, whether or not the Merger is
          consummated. "Expenses" as used in this Agreement will include all
          reasonable out-of-pocket expenses (including, without limitation, all
          fees and expenses of counsel, accountants, experts and consultants to
          a party hereto and its affiliates) incurred by a party or on its
          behalf in connection with or related to the

                                      -42-



          authorization, preparation, negotiation, execution and performance of
          this Agreement, the preparation, printing, filing and mailing of the
          Proxy Statement, the solicitation of stockholder approvals and all
          other matters related to the closing of the Merger.

     5.16 Canaan Termination Fee. Parent and Canaan agree that: (a) if Canaan
          ----------------------
          terminates this Agreement pursuant to paragraph 7.1.4(a); or (b) if
          Parent terminates this Agreement pursuant to paragraph 7.1.5; or (c)
          if (i) Canaan or Parent terminates this Agreement pursuant to
          paragraph 7.1.2 due to the failure of Canaan's stockholders to approve
          and adopt this Agreement, the Merger and the transactions contemplated
          hereby or by Parent pursuant to paragraph 7.1.3, and (ii) at the time
          of such termination, there exists an Alternative Proposal with respect
          to Canaan which has been publicly announced and remains pending and,
          prior to or within twelve (12) months of the termination of this
          Agreement, Canaan enters into a definitive agreement with any third
          party with respect to such Alternative Proposal with respect to Canaan
          which is ultimately consummated, then Canaan will pay to Parent
          $5,000,000.00 (the "Canaan Termination Fee"). The Canaan Termination
          Fee will be paid to Parent: (i) prior to, and will be a pre-condition
          to effectiveness of termination of this Agreement pursuant to
          paragraph 7.1.4(a); (ii) within three (3) business day after a
          termination of this Agreement pursuant to paragraph 7.1.5; and (iii)
          within one (1) business day after consummation of a definitive
          agreement entered into with a third party with respect to an
          Alternative Proposal if this Agreement is terminated pursuant to
          paragraph 7.1.2 or paragraph 7.1.3. All payments under this paragraph
          5.16 will be made by wire transfer of immediately available funds to
          an account designated by Parent.

     5.17 Dissenting Stockholder Payments. Any and all payments made to settle
          -------------------------------
          appraisal rights of Dissenting Stockholders or made pursuant to the
          OGCA will be made solely out of Canaan assets and neither Parent nor
          Sub will have any liability therefor.

     5.18 Name. As of the Effective Time, the Surviving Corporation and Parent
          ----
          hereby release any claim to the use of the name "Canaan" and will
          provide an assignment of such rights to LJ Natural Gas Company, an
          Oklahoma corporation.

     5.19 Related Agreements. As of the Effective Time the parties will execute
          ------------------
          or cause to be executed the Goodwill Protection Agreements and the
          Office Space Agreement. The periodic payments to be paid under: (1)
          Leo E. Woodard's Goodwill Protection Agreement will be $500,000; (2)
          John K. Penton's Goodwill Protection Agreement will be $500,000; and
          (3) Michael S. Mewbourn's Goodwill Protection Agreement will be
          $300,000.

6.   Conditions Precedent. The obligations of the Parties under this Agreement
     --------------------
will be subject to the following conditions precedent:

     6.1  Conditions to Each Party's Obligation to Effect the Merger. The
          ----------------------------------------------------------
          respective obligations of each of the Parties to effect the Merger
          will be subject to the satisfaction, at or prior to the Closing Date,
          of the following conditions:

                                      -43-



          6.1.1   Stockholder Approval. This Agreement and the Merger will have
                  --------------------
                  been duly and validly approved and adopted by a majority of
                  the outstanding Canaan Common Stock voting as one class.

          6.1.2   Other Approvals. If applicable, the waiting period applicable
                  ---------------
                  to the consummation of the Merger under the HSR Act will have
                  expired or been terminated and all filings required to be made
                  prior to the Effective Time with, and all consents, approvals,
                  permits and authorizations required to be obtained prior to
                  the Effective Time from, any Governmental Authority in
                  connection with the execution and delivery of this Agreement
                  and the consummation of the transactions contemplated hereby
                  by Canaan, Parent and Sub will have been made or obtained (as
                  the case may be), except where the failure to obtain such
                  consents, approvals, permits and authorizations would not be
                  reasonably likely to result in a Material Adverse Effect.

          6.1.3   No Injunctions or Restraints. No temporary restraining order,
                  ----------------------------
                  preliminary or permanent injunction or other order issued by
                  any court of competent jurisdiction or other legal restraint
                  or prohibition preventing the consummation of the Merger will
                  be in effect; provided, however, that prior to invoking this
                  condition, each party will have complied fully with its
                  obligations under this Agreement and, in addition, will use
                  all reasonable efforts to have any such decree, ruling,
                  injunction or order vacated, except as otherwise contemplated
                  by this Agreement.

     6.2  Conditions to Obligations of Parent and Sub. The obligations of Parent
          -------------------------------------------
          and Sub to effect the Merger are subject to the satisfaction of the
          following conditions, any or all of which may be waived in whole or in
          part by Parent and Sub:

          6.2.1   Representations and Warranties. The representations and
                  ------------------------------
                  warranties of the Company contained in this Agreement and any
                  document delivered in connection herewith: (1) to the extent
                  qualified by Material Adverse Effect or any other materiality
                  qualification will be true and correct as of the date of this
                  Agreement and as of the Closing Date; and (2) to the extent
                  not qualified by Material Adverse Effect or any other
                  materiality qualification will be true and correct in all
                  material respects as of the date of this Agreement and as of
                  the Closing Date; provided that the foregoing condition will
                  be deemed to have been satisfied unless the failure of such
                  representations and warranties to be true and correct (without
                  regard to any Material Adverse Effect or any other materiality
                  qualification or threshold set forth in paragraph 3 of this
                  Agreement), individually or in the aggregate, results in or
                  would reasonably be expected to result in a Material Adverse
                  Effect on Canaan. At Closing the Parent will have received a
                  certificate of the Company, executed on its behalf by its
                  chief executive officer, dated as of the Closing Date,
                  certifying to the foregoing.

                                      -44-



          6.2.2   Performance of Covenants and Agreements by Canaan. Canaan will
                  -------------------------------------------------
                  have performed in all material respects all covenants and
                  agreements required to be performed by it under this Agreement
                  at or prior to the Closing Date, and Parent will have received
                  a certificate signed by the chief executive officer of Canaan
                  to such effect.

          6.2.3   No Adverse Change. From the date of this Agreement through the
                  -----------------
                  Closing, there will not have occurred any change in the
                  condition (financial or otherwise), operations or business of
                  Canaan that would have or would reasonably be expected to have
                  a Material Adverse Effect on Canaan.

          6.2.4   Dissenting Stockholders. Holders of no more than ten percent
                  -----------------------
                  (10%) of the outstanding shares of Canaan Common Stock will
                  have exercised, nor will they have any continued right to
                  exercise, appraisal, dissenters' or similar rights under
                  applicable law with respect to their shares of Canaan Common
                  Stock by virtue of the Merger.

          6.2.5   Releases. Each officer and director of Canaan will have
                  --------
                  executed and delivered a Release in substantially the form
                  attached hereto as Exhibit "D" and resignation as officer and
                  director.

          6.2.6   Opinion of Counsel. Parent will have received from Crowe &
                  ------------------
                  Dunlevy, counsel to Canaan, an opinion in form and substance
                  substantially as set forth in Exhibit "E" attached hereto
                  addressed to Parent and dated as of the Closing Date.

     6.3  Conditions to Obligation of Canaan. The obligation of Canaan to effect
          -----------------------------------
          the Merger is subject to the satisfaction of the following conditions,
          any or all of which may be waived in whole or in part by Canaan:

          6.3.1   Representations and Warranties. The representations and
                  ------------------------------
                  warranties of Parent and Sub set forth in paragraph 4 will be
                  true and correct as of the Closing Date as though made on and
                  as of that time, and Canaan will have received a certificate
                  signed by the chief executive officer or the chief financial
                  officer of Parent to such effect; provided, however, that the
                  condition set forth in this paragraph 6.3.1 will be deemed to
                  be satisfied even if one or more of such representations and
                  warranties are not true and correct, so long as the failure of
                  such representations and warranties to be true and correct (in
                  the aggregate) does not result in Parent and/or Sub being
                  unable to perform its obligations under this Agreement.

          6.3.2   Performance of Covenants and Agreements by Parent and Sub.
                  ---------------------------------------------------------
                  Parent and Sub will have performed in all material respects
                  all covenants and agreements required to be performed by them
                  under this Agreement at or prior to the Closing Date, and
                  Canaan will have received a certificate signed by the chief
                  executive officer or the chief financial officer of Parent to
                  such effect.

                                      -45-




7.   Termination. This Agreement may be terminated and the Merger may be
     -----------
abandoned at any time prior to the Effective Time, whether before or after
approval of this Agreement and the Merger by the stockholders of Canaan on the
following terms.

     7.1  Termination Rights. Any termination of this Agreement will be:
          ------------------

          7.1.1   Mutual Consent. By mutual written consent of Parent and
                  --------------
                  Canaan;

          7.1.2   Date Certain. By either Canaan or Parent if: (a) the Merger
                  ------------
                  has not been consummated by December 31, 2002 (provided,
                  however, that the right to terminate this Agreement pursuant
                  to this clause (a) will not be available to any party whose
                  breach of any representation or warranty or failure to perform
                  any covenant or agreement under this Agreement has been the
                  cause of or resulted in the failure of the Merger to occur on
                  or before such date); (b) any Governmental Authority has
                  issued an order, decree or ruling or taken any other action
                  permanently restraining, enjoining or otherwise prohibiting
                  the Merger and such order, decree, ruling or other action has
                  become final and nonappealable (provided, however, that the
                  right to terminate this Agreement pursuant to this clause (b)
                  will not be available to any party until such party has used
                  all reasonable efforts to remove such injunction, order or
                  decree); or (c) this Agreement and the Merger have not been
                  approved by the holders of a majority of the outstanding
                  Canaan Common Stock voting as one class at the Canaan
                  Stockholder Meeting or at any adjournment thereof;

          7.1.3   By Parent. By Parent if: (a) there has been a breach of any of
                  ---------
                  the representations and warranties made by Canaan in this
                  Agreement or the Canaan Disclosure Schedule the aggregate of
                  which would have a Material Adverse Effect on Canaan and such
                  breach has not been, or cannot be, cured within twenty (20)
                  days after notice and demand for cure thereof; or (b) Canaan
                  has failed to comply in any material respect with any of its
                  covenants or agreements contained in this Agreement and such
                  failure has not been, or cannot be, cured within twenty (20)
                  days after notice and demand for cure thereof, provided
                  however Parent will not have the right to terminate this
                  Agreement pursuant to this paragraph 7.1.3 if at the time
                  Parent is in breach of any representation, warranty or
                  covenant under this Agreement such that the conditions to
                  Closing under paragraph 6.3 of this Agreement will not be
                  satisfied.

          7.1.4   By Canaan. By Canaan if: (a) as a result of a Superior
                  ---------
                  Proposal received by Canaan from a Person other than a party
                  to this Agreement or any of its Affiliates, Canaan's board of
                  directors determines to accept such Superior Proposal as
                  provided in paragraph 5.3.2; provided, however, that prior to
                  the effective date of any such termination, Canaan will
                  provide Parent with an opportunity (of not less than five (5)
                  full business days) to make such adjustments in the terms and
                  conditions of this Agreement or the Merger as would enable
                  Canaan to proceed with the transactions contemplated hereby;

                                      -46-



                  provided, further, that it will be a condition to the
                  effectiveness of termination by Canaan pursuant to this
                  paragraph 7.1.4, that Canaan will have paid the Canaan
                  Termination Fee to Parent required by paragraph 5.16 of this
                  Agreement; or (b) there has been a breach of the
                  representations and warranties made by Parent in paragraph 4
                  of this Agreement the aggregate effect of which would cause
                  Parent to be unable to perform its obligations under this
                  Agreement, and the condition described in paragraph 6.3.1,
                  other than the provision thereof relating to the certificate
                  signed by the chief executive officer or chief financial
                  officer of Parent, would not be satisfied if the Closing were
                  to occur on the day on which Canaan gives Parent notice of
                  such termination; or (c) Parent has failed to comply in any
                  material respect with any of its covenants or agreements
                  contained in this Agreement and such failure has not been, or
                  cannot be, cured within twenty (20) days after notice and
                  demand for cure thereof; or

          7.1.5   Superior Proposal. By Parent if the board of directors of
                  -----------------
                  Canaan: (a) recommends any Alternative Proposal to Canaan's
                  stockholders; or (b) withdraws or modifies in a manner adverse
                  to Parent, its approval or recommendation of this Agreement or
                  the Merger, or, on request by Parent, fails to reaffirm such
                  approval or recommendation.

     7.2  Effect of Termination. If this Agreement is terminated by either
          ---------------------
          Canaan or Parent pursuant to the provisions of paragraph 7.1, this
          Agreement will forthwith become void and there will be no further
          obligation on the part of any party hereto or its respective
          Affiliates, directors, officers or stockholders except pursuant to,
          the provisions of this paragraph 7.2 and paragraphs 3.10, 4.7, 5.2,
          5.5, 5.15 and 5.16 (which will continue pursuant to their terms). The
          termination of this Agreement will not relieve any party hereto from
          any liability for damages incurred as a result of a breach by such
          party of its representations, warranties, covenants, agreements or
          other obligations hereunder occurring prior to such termination.

8.   Miscellaneous. It is further agreed as follows:
     -------------

     8.1  Nonsurvival of Representations and Warranties. None of the
          ---------------------------------------------
          representations and warranties contained in this Agreement or in any
          instrument delivered pursuant to this Agreement, and no agreements or
          obligations arising under the Confidentiality Agreement, will survive
          the consummation of the Merger, except for the agreements contained in
          paragraphs 2, 5.8, 5.9, and in this paragraph 8.

     8.2  Amendment. This Agreement may be amended by the Parties at any time
          ---------
          before or after approval of the Merger and this Agreement by the
          stockholders of Canaan; provided, however, that after any such
          approval, no amendment will be made that by law requires further
          approval by such stockholders without such further approval. This
          Agreement may not be amended except by a written instrument signed on
          behalf of each of the Parties.

                                      -47-



8.3  Notices. Any notice or other communication required or permitted hereunder
     -------
     will be in writing and either delivered personally, by facsimile
     transmission or by registered or certified mail (postage prepaid and return
     receipt requested) and will be deemed given when received (or, if mailed,
     five (5) business days after the date of mailing) at the following
     addresses or facsimile transmission numbers (or at such other address or
     facsimile transmission number for a party as will be specified by like
     notice):

     To Parent or Sub:         Chesapeake Energy Corporation
                               6100 North Western Avenue
                               Oklahoma City, Oklahoma 73118
                               Attention:  Aubrey K. McClendon
                               Telephone:  405-879-9226
                               Facsimile:  405-848-8588

     With a copy to:           Commercial Law Group, P.C.
                               2725 Oklahoma Tower
                               210 Park Avenue
                               Oklahoma City, Oklahoma 73102
                               Attention:  Ray Lees
                               Telephone:  405-232-3001
                               Facsimile:  405-232-5553

     To Canaan:                Canaan Energy Corporation
                               211 North Robinson, Suite 1000N
                               Oklahoma City, Oklahoma 73102
                               Attention:  John K. Penton
                               Telephone:  (405) 604-9200
                               Facsimile:  (405) 604-9295

     With a copy to:           Crowe & Dunlevy
                               20 North Broadway, Suite 1800
                               Oklahoma City, Oklahoma 73102
                               Attention:  Michael M. Stewart
                               Telephone:  (405) 235-7747
                               Facsimile:  (405) 272-5238

8.4  Counterparts. This Agreement may be executed in two or more counterparts,
     ------------
     all of which will be considered one and the same agreement and will become
     effective when two or more counterparts have been signed by each of the
     Parties and delivered to the other Parties, it being understood that all
     Parties need not sign the same counterpart.

8.5  Severability. Any term or provision of this Agreement that is invalid or
     ------------
     unenforceable in any jurisdiction will, as to such jurisdiction, be
     ineffective to the extent of such invalidity or unenforceability without
     rendering invalid or unenforceable the remaining terms and provisions of
     this Agreement or affecting the validity or enforceability of any of the
     terms or provisions of this Agreement in any other jurisdiction. If any
     provision

                                      -48-



     of this Agreement is so broad as to be unenforceable, such provision will
     be interpreted to be only so broad as is enforceable.

8.6  Entire Agreement; No Third Party Beneficiaries. This Agreement (together
     ----------------------------------------------
     with the documents and instruments delivered by the Parties in connection
     with this Agreement): (a) constitutes the entire agreement and supersedes
     all other prior agreements and understandings, both written and oral, among
     the Parties with respect to the subject matter hereof; and (b) except as
     provided in paragraph 2 or paragraphs 5.8 or 5.9, is solely for the benefit
     of the Parties and their respective successors, legal representatives and
     assigns and does not confer on any other Person any rights or remedies
     hereunder.

8.7  Applicable Law. This Agreement will be governed in all respects, including
     --------------
     validity, interpretation and effect, by the laws of the State of Oklahoma
     regardless of the laws that might otherwise govern under applicable
     principles of conflicts of laws thereof.

8.8  No Remedy in Certain Circumstances. Each party agrees that, should any
     ----------------------------------
     court or other competent authority hold any provision of this Agreement or
     part hereof to be null, void or unenforceable, or order any party to take
     any action inconsistent herewith or not to take an action consistent
     herewith or required hereby, the validity, legality and enforceability of
     the remaining provisions and obligations contained or set forth herein will
     not in any way be affected or impaired thereby, unless the foregoing
     inconsistent action or the failure to take an action constitutes a material
     breach of this Agreement or makes this Agreement impossible to perform, in
     which case this Agreement will terminate pursuant to paragraph 7 hereof.
     Except as otherwise contemplated by this Agreement, to the extent that a
     party hereto took an action inconsistent herewith or failed to take action
     consistent herewith or required hereby pursuant to an order or judgment of
     a court or other competent Governmental Authority, such party will not
     incur any liability or obligation unless such party breached its obligation
     under paragraph 5.10 or did not in good faith seek to resist or object to
     the imposition or entering of such order or judgment.

8.9  Enforcement of Agreement. The Parties agree that irreparable damage would
     ------------------------
     occur in the event that any of the provisions of this Agreement were not
     performed in accordance with the terms hereof or were otherwise breached.
     Accordingly, the Parties hereby agree that each party hereto will be
     entitled to specific performance of the terms and provisions hereof in
     addition to any other remedy at law or in equity.

8.10 Assignment. Neither this Agreement nor any of the rights, interests or
     ----------
     obligations hereunder will be assigned by any of the Parties (whether by
     operation of law or otherwise) without the prior written consent of the
     other Parties, except that Sub may assign, in its sole discretion, any or
     all of its rights, interests and obligations hereunder to any newly formed
     direct or indirect wholly-owned subsidiary of Parent. Subject to the
     preceding sentence, this Agreement will be binding upon, inure to the
     benefit of and be enforceable by the Parties and their respective
     successors and assigns.

                                      -49-



8.11 Waivers. At any time prior to the Effective Time, the Parties may, to the
     -------
     extent legally allowed: (a) extend the time for the performance of any of
     the obligations or other acts of the other Parties; (b) waive any
     inaccuracies in the representations and warranties contained herein or in
     any document delivered pursuant hereto; and (c) waive performance of any of
     the covenants or agreements, or satisfaction of any of the conditions,
     contained herein. Any agreement on the part of a party hereto to any such
     extension or waiver will be valid only if set forth in a written instrument
     signed on behalf of such party. Except as provided in this Agreement, no
     action taken pursuant to this Agreement, including any investigation by or
     on behalf of any party, will be deemed to constitute a waiver by the party
     taking such action of compliance with any representations, warranties,
     covenants or agreements contained in this Agreement. The waiver by any
     party hereto of a breach of any provision hereof will not operate or be
     construed as a waiver of any prior or subsequent breach of the same or any
     other provisions hereof.

8.12 References and Titles. All references in this Agreement to Exhibits,
     ---------------------
     Schedules, Sections, paragraphs, subsections and other subdivisions refer
     to the corresponding Exhibits, Schedules, Sections, paragraphs, subsections
     and other subdivisions of or to this Agreement and/or the schedules
     attached hereto unless expressly provided otherwise. Except for the defined
     terms in paragraph 1, titles appearing at the beginning of any Sections,
     paragraphs, subsections or other subdivisions of this Agreement are for
     convenience only, do not constitute any part of this Agreement, and will be
     disregarded in construing the language hereof.

8.13 Incorporation. Exhibits and Schedules referred to herein are attached to
     -------------
     and by this reference incorporated herein for all purposes.

                           [SIGNATURE PAGES TO FOLLOW]

                                      -50-



                                 SIGNATURE PAGE
                                 --------------

                         (Agreement and Plan of Merger)

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

ATTEST:                           CANAAN ENERGY CORPORATION, an Oklahoma
                                  corporation


By__________________________       By___________________________________________
  Sue Barnard, Secretary            Leo E. Woodard, Chairman and Chief Executive
                                    Officer


ATTEST:

By__________________________       By___________________________________________
  Sue Barnard, Secretary             John K. Penton, President


                                  ("Canaan")

                                      -51-



                                 SIGNATURE PAGE
                                 --------------

                         (Agreement and Plan of Merger)

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

ATTEST:                           CHESAPEAKE ENERGY CORPORATION, an Oklahoma
                                  corporation


By__________________________      By____________________________________________
  Secretary                         Aubrey K. McClendon, Chief Executive Officer

                                  ("Parent")


ATTEST:                           CHK ACQUISITION, INC., an Oklahoma
                                  corporation


By__________________________      By____________________________________________
  Secretary                         Aubrey K. McClendon, Chief Executive Officer

                                  ("Sub")

                                      -52-



                     AGREEMENT AND LIMITED IRREVOCABLE PROXY
                     ---------------------------------------

     This Agreement and Irrevocable Proxy, dated as of April 19, 2002 (the
"Agreement"), is by and between Chesapeake Energy Corporation, an Oklahoma
corporation ("Chesapeake"), and the party identified as the "Stockholder" on the
signature page hereof (the "Stockholder").

                                    RECITALS:

     WHEREAS, Chesapeake, CHK Acquisition, Inc., an Oklahoma corporation and
wholly owned subsidiary of Chesapeake ("Merger Sub"), and Canaan Energy
Corporation, an Oklahoma corporation ("Canaan"), propose to enter into an
Agreement and Plan of Merger, dated as of the date hereof (the "Merger
Agreement"), providing, among other things, for the merger of Merger Sub with
and into Canaan in accordance with the terms and provisions of, and subject to
the conditions set forth in, the Merger Agreement (the "Merger"); and

     WHEREAS, the Stockholder is the owner, beneficially and of record, of the
number of shares of Canaan Common Stock (the "Shares") identified on the
signature page of this Agreement; and

     WHEREAS, the Stockholder has agreed to vote the Shares in favor of the
Merger Agreement and the consummation of the Merger at the Canaan Stockholder
Meeting;

     NOW, THEREFORE, to induce Chesapeake and Merger Sub to enter into the
Merger Agreement and in consideration of the aforesaid and the representations,
warranties, covenants and agreements set forth herein and in the Merger
Agreement, including the benefits that the parties hereto expect to derive from
the Merger, the receipt and sufficiency of all of which are hereby acknowledged
by the parties, the parties hereto agree as follows:

1.   Revocation of Prior Proxies. The Stockholder hereby revokes all previous
     ---------------------------
proxies granted with respect to any of the Shares owned by the Stockholder that
would conflict with the terms of the Proxy granted hereby.

2.   Grant of Limited Irrevocable Proxy. The Stockholder, solely in such
     ----------------------------------
capacity, hereby irrevocably constitutes and appoints Chesapeake and Aubrey K.
McClendon, Chairman of the Board and Chief Executive Officer of Chesapeake, Tom
L. Ward, President and Chief Operating Officer of Chesapeake, and Marcus C.
Rowland, Executive Vice President and Chief Financial Officer of Chesapeake, in
their respective capacities as officers of Chesapeake, and any individual who
hereafter succeeds to the office of Chairman of the Board and Chief Executive
Officer, President or Chief Financial Officer, respectively, of Chesapeake, and
each of them individually, as the Stockholder's true and lawful proxy and
attorney-in-fact (the "Agents"), with full power of substitution, for and in the
name, place and stead of the Stockholder, to call and attend any and all
meetings of Canaan's stockholders, including the Canaan Stockholder Meeting, at
which the Merger Agreement or the Merger are to be considered and voted upon by
Canaan's stockholders, and any adjournments thereof, to execute any and all
written consents of stockholders of Canaan and to vote all of the Shares and any
and all shares of any other class of capital stock of Canaan presently or at

                                                                     Exhibit "A"
                                                               Page 1 of 5 Pages





any future time owned beneficially or of record by the Stockholder, including
any and all securities having voting rights issued or issuable in respect
thereof, which the Stockholder is entitled to vote (all of the foregoing being
collectively referred to as the "Subject Stock"), and to represent and otherwise
act as the Stockholder could act, in the same manner and with the same effect as
if the Stockholder were personally present, at any such annual, special or other
meeting of the stockholders of Canaan (including the Canaan Stockholder
Meeting), and at any adjournment thereof (a "Meeting"), or pursuant to any
written consent in lieu of meeting or otherwise; provided, however, that this
Proxy will be limited to any such vote or consent in lieu thereof or any other
action so taken will be solely for the purposes of voting in favor of the Merger
and the Merger Agreement and any transactions contemplated thereby. The Agents
are hereby authorized to vote the Subject Stock in accordance with the terms of
the Proxy contemplated hereby.

3.   Vote in Favor of Merger and Merger Agreement. If Chesapeake is unable or
     --------------------------------------------
declines to exercise the power and authority granted by the Proxy for any
reason, the Stockholder covenants and agrees to vote all the Subject Stock in
favor of approval of the Merger and the Merger Agreement at any Meeting at which
such matters are considered and voted upon and, upon request of Chesapeake, to
provide the Stockholder's written consent thereto.

4.   No Action Without Chesapeake's Consent. The Stockholder hereby covenants
     --------------------------------------
and agrees that the Stockholder will not vote or take any action by written
consent of stockholders in lieu of meeting on any matter that is subject to the
Proxy without Chesapeake's prior written consent.

5.   Negative Covenants of the Stockholder. Except to the extent contemplated
     -------------------------------------
herein or in the Merger Agreement, the Stockholder hereby covenants and agrees
that the Stockholder will not, and will not agree to, directly or indirectly:
(a) sell, transfer, assign, cause to be redeemed or otherwise dispose of any of
the Subject Stock or enter into any contract, option or other agreement or
understanding with respect to the sale, transfer, assignment, redemption or
other disposition of any Subject Stock; or (b) grant any proxy,
power-of-attorney or other authorization or interest in or with respect to such
Subject Stock pertaining or relating to the Merger Agreement, the Merger or any
of the transactions contemplated thereby; or (c) deposit such Subject Stock into
a voting trust or enter into a voting agreement or arrangement with respect to
such Subject Stock, unless and until, in the case of (a), (b) or (c) above, the
Stockholder has taken all actions (including, without limitation, the
endorsement of a legend on the certificates evidencing such Subject Stock)
reasonably necessary to ensure that such Subject Stock will at all times be
subject to all the rights, powers and privileges granted or conferred, and
subject to all the restrictions, covenants and limitations imposed, by this
Agreement and has caused any transferee of any of the Subject Stock to execute
and deliver to Chesapeake, an Agreement and Irrevocable Proxy, in substantially
the form of this Agreement with respect to the Subject Stock. Nothing contained
herein will be construed in any way as affecting the right of the Stockholder to
grant a security interest, by way of pledge, by hypothecation or otherwise, in
the Subject Stock in connection with bona fide credit arrangements or as
requiring the lender in such bona fide credit arrangement to be bound by the
terms of this Agreement, provided that the Stockholder will promptly notify
Chesapeake of any such grant.

6.   Stockholder's Representations and Warranties. The Stockholder represents
     --------------------------------------------
and warrants to Chesapeake that: (a) the Stockholder has duly authorized,
executed and delivered this Agreement and

                                                                     Exhibit "A"
                                                               Page 2 of 5 Pages



this Agreement constitutes a valid and binding agreement, enforceable in
accordance with its terms and neither the execution and delivery of this
Agreement nor the consummation by the Stockholder of the transactions
contemplated hereby will constitute a violation of, a default under, or conflict
with any contract, commitment, agreement, understanding, arrangement or
restriction of any kind to which the Stockholder is a party or by which the
Stockholder is bound; (b) consummation by the Stockholder of the transactions
contemplated hereby will not violate, or require any consent, approval, or
notice under, any provision of law other than filing on Form 13D that may be
required under the Securities Exchange Act of 1934, as amended; (c) the Subject
Stock and the certificates representing same are now and at all times during the
term of this Agreement will be held by the Stockholder, or by a nominee or
custodian for the benefit of the Stockholder, free and clear of all liens,
claims, security interests, proxies, voting trust or agreement or any other
encumbrances whatsoever ("Encumbrances") with respect to the ownership or voting
of the Subject Stock or otherwise, other than Encumbrances created by or arising
pursuant to this Agreement, and there are no outstanding options, warrants or
rights to purchase or acquire, or proxies, powers-of-attorney, voting
agreements, trust agreements or other agreements relating to, the Subject Stock
other than this Agreement; (d) the Subject Stock constitutes all of the
securities of Canaan owned beneficially or of record by the Stockholder on the
date hereof; and (e) the Stockholder has the present power and right to vote all
of the Subject Stock as contemplated herein.

7.   Certain Defined Terms. Unless otherwise expressly provided herein, all
     ---------------------
capitalized terms used herein without definition will have the meanings assigned
to them in the Merger Agreement.

8.   Choice of Law. The terms and provisions of this Agreement will be governed
     -------------
by and construed in accordance with the laws of the State of Oklahoma without
giving effect to the provisions thereof relating to conflicts of law.

9.   Binding Effect; Assignability. The terms and provisions of this Agreement
     -----------------------------
will be binding upon, inure to the benefit of, and be enforceable by the
successors and permitted assigns of the parties hereto. This Agreement and the
rights hereunder may not be assigned or transferred by Chesapeake, except with
the prior written consent of the Stockholder.

10.  Term. This Agreement will terminate, and the Proxy granted hereby will be
     ----
automatically revoked, at the earlier of: (a) the Effective Time; (b) the
termination of the Merger Agreement in accordance with its terms; or (c) upon
written notice of termination of this Agreement given by Chesapeake to the
Stockholder expressly referring to this paragraph.

11.  Irrevocable Proxy Coupled with an Interest. The Stockholder acknowledges
     ------------------------------------------
that Chesapeake will enter into the Merger Agreement in reliance upon this
Agreement, including the Proxy, and that the Proxy is granted in consideration
for the execution and delivery of the Merger Agreement by Chesapeake. THE
STOCKHOLDER AGREES THAT THE PROXY AND ALL OTHER POWER AND AUTHORITY INTENDED TO
BE CONFERRED HEREBY IS COUPLED WITH AN INTEREST SUFFICIENT IN LAW TO SUPPORT AN
IRREVOCABLE POWER AND, EXCEPT AS PROVIDED IN PARAGRAPH 10 ABOVE, WILL NOT BE
TERMINATED BY ANY ACT OF THE STOCKHOLDER BY LACK OF APPROPRIATE POWER OR
AUTHORITY OR BY THE OCCURRENCE OF ANY OTHER EVENT OR EVENTS.

                                                                     Exhibit "A"
                                                               Page 3 of 5 Pages



12.  Specific Performance. The parties acknowledge and agree that performance of
     --------------------
their respective obligations hereunder will confer a unique benefit on the other
and that a failure of performance will result in irreparable harm to the other
and will not be compensable by money damages. The parties therefore agree that
this Agreement, including the Proxy, will be specifically enforceable and that
specific enforcement and injunctive relief will be a remedy properly available
to Chesapeake and the Stockholder for any breach of any agreement, covenant or
representation of the other hereunder.

13.  Further Assurance. The Stockholder will, upon request, execute and deliver
     -----------------
any additional documents and take such further actions as may reasonably be
deemed by Chesapeake or its counsel to be necessary or desirable to carry out
the provisions hereof.

14.  Severability. If any term, provision, covenant or restriction of this
     ------------
Agreement, or the application thereof to any circumstance, is, to any extent,
held by a court of competent jurisdiction to be invalid, void or unenforceable,
the remainder of the terms, provisions, covenants and restrictions of this
Agreement or the application thereof to any other circumstance, will remain in
full force and effect, will not in any way be affected, impaired or invalidated
and will be enforced to the fullest extent permitted by law.

15.  Counterparts. This Agreement may be executed in counterparts, each of which
     ------------
will be deemed to be an original but all of which together will constitute one
and the same document.

16.  Notice. All notices, requests, claims, demands and other communications
     ------
under this Agreement will be in writing and will be deemed given if delivered
personally or sent by overnight courier (providing proof of delivery) to the
parties at the following addresses (or such other address for a party as will be
specified by like notice): (a) if to Chesapeake, to the address set forth in
paragraph 8.3 of the Merger Agreement, and (b) if to a Stockholder, to the
address set forth on the signature page hereof, or such other address as may be
specified in writing by such Stockholder.

        IN WITNESS WHEREOF, Chesapeake and the Stockholder have duly executed
this Agreement or caused this Agreement to be duly executed as of the date first
set forth above.

                                          STOCKHOLDER

                                          [NAME]



                                          _____________________________

                                          Shares Owned:

                                          ________ shares of Canaan Common Stock

                                                                     Exhibit "A"
                                                               Page 4 of 5 Pages



                                       Address:


                                       _____________________________________

                                       _____________________________________

                                       _____________________________________


                                       CHESAPEAKE ENERGY CORPORATION, an
                                       Oklahoma corporation


                                       By ___________________________________
                                          Aubrey K. McClendon, Chief Executive
                                          Officer

                                                                     Exhibit "A"
                                                               Page 5 of 5 Pages





                          GOODWILL PROTECTION AGREEMENT
                          -----------------------------

               THIS GOODWILL PROTECTION AGREEMENT (this "Agreement") is made
effective the _____ day of ____________, 2002, among _______________, an
individual (the "Restricted Party"), CHESAPEAKE ENERGY CORPORATION, an Oklahoma
corporation ("Chesapeake"), and CHK ACQUISITION, INC., an Oklahoma corporation
("CHK").

                              W I T N E S S E T H:

               WHEREAS, Chesapeake, CHK and Canaan Energy Corporation, an
Oklahoma corporation ("Canaan"), entered into that certain Agreement and Plan of
Merger dated April 19, 2002 (the "Merger Agreement");

               WHEREAS, the Restricted Party is an officer and shareholder of
Canaan with special expertise in the oil and gas business and as a result the
obligations of Chesapeake and CHK to close the transactions contemplated under
the Merger Agreement are expressly conditioned upon the execution and delivery
of this Agreement by the Restricted Party; and

               WHEREAS, to induce Chesapeake and CHK to perform the Merger
Agreement and to protect the goodwill acquired by Chesapeake and CHK under the
Merger Agreement, the Restricted Party has agreed to execute, deliver and
perform this Agreement.

               NOW, THEREFORE, for good and valuable consideration, the receipt
and sufficiency of which are hereby acknowledged, the parties agree as follows:

1.   Defined Terms. Except as otherwise defined herein, all terms defined in the
     -------------
Merger Agreement will have the same meanings herein as therein defined unless
the context otherwise requires. The following terms will have the following
meanings when used in this Agreement:

     1.1.      Chesapeake Companies. Chesapeake, CHK and all of their wholly
               --------------------
               owned subsidiary companies, whether owned directly or indirectly
               by Chesapeake or CHK, including, without implied limitation,
               corporations, partnerships and limited liability companies.

     1.2       Confidential Information. All information relating to Canaan
               ------------------------
               and/or Canaan's Oil and Gas Interests, including information
               relating to title matters, environmental matters, financial
               statements and other financial matters, estimates of reserves,
               quality of reserves, geological matters, asset listings,
               production and operating costs, production capabilities,
               marketing, tax, forecasts and projections, in whatever form
               (whether documentary, computer storage or other). Notwithstanding
               the foregoing, information which is generally available to the
               public or becomes generally available to the public through no
               action of the Restricted Party Group will not be considered
               Confidential Information.

     1.3       Derivative Information. Any notes, summaries, evaluations,
               ----------------------
               analyses and other material derived by the Restricted Party from
               any of the Confidential Information.


                                                                     Exhibit "B"
                                                               Page 1 of 8 Pages




     1.4       Lands. Any and all lands lying within one (1) mile of: (a) any
               -----
               well and drilling or spacing unit within which such well lies in
               which Canaan had an interest as of the Effective Time of the
               Merger, and (b) the boundary of any Oil and Gas Interest in which
               Canaan had an interest as of the Effective Time of the Merger.

     1.5       Oil and Gas Business. Owning, managing, operating, controlling or
               --------------------
               developing Oil and Gas Interests or engaging in or being
               connected with, as a partner, limited liability company member,
               investor, stockholder, advisor, employee, independent contractor
               or consultant, any of the foregoing activities or the oil and gas
               exploration and production business.

     1.6       Oil and Gas Interests. All: (a) oil and gas leases, mineral
               ---------------------
               interests, oil, gas and mineral leasehold interests, fee
               interests, royalty interests (including, without implied
               limitation, landowner royalty interests, nonparticipating royalty
               interests and overriding royalty interests), production payments,
               net profits interests, subleases, mineral servitudes, licenses,
               easements, pooling orders and other interests in oil, gas and
               other hydrocarbons; (b) contract rights, joint operating
               agreements, farm out agreements, pooling agreements, seismic
               agreements, cost sharing arrangements and other agreements
               relating to the interests under the foregoing clause (a) or the
               oil and gas exploration and production business; (c) wells,
               equipment, associated personal property, pipelines, fixtures and
               other assets related to the foregoing; and (d) other businesses,
               operations, rights, titles and interests relating directly or
               indirectly to the drilling, exploration, development, operation,
               marketing, sale or other disposal of the foregoing assets and
               interests.

     1.7       Restricted Party Group. The Restricted Party together with: (a)
               ----------------------
               the immediate family members of the Restricted Party; (b) any
               successors or assigns of the Restricted Party; (c) any Person in
               which the Restricted Party owns or has the right to acquire an
               equity interest in excess of twenty percent (20%); and (d) any
               entity in which the Restricted Party, ____________ and
               _____________ (collectively, the "Related Parties") own or have
               the right to acquire a combined equity interest in excess of
               forty percent (40%).

2.   Restriction on Activities. During the period commencing on the date of
     -------------------------
this Agreement and ending on the date two (2) years after the date of this
Agreement (the "Protection Period"), each member of the Restricted Party Group
will not, without the prior written consent of Chesapeake or as otherwise
specifically permitted under paragraph 2.2 hereof, directly or indirectly: (a)
own, acquire or solicit the acquisition of (or assist any other Person to own,
acquire or solicit the acquisition of) any Oil and Gas Interests, or any option
or other right to acquire any Oil and Gas Interests, in any case pertaining to
or covering, in whole or in part, the Lands; (b) conduct (or assist any third
person to conduct) any Oil and Gas Business on or with respect to the Lands; or
(c) acquire any interest or the right to acquire any interest in a Person that
owns Oil and Gas Interests included in clause (a) or conducts activities
included in (b) that results in the Restricted Party Group and the Related
Parties owning or having the right to acquire more than forty percent (40%) of
such Person. In addition to the foregoing, during the Protection Period, each
member of the Restricted Party Group will not,

                                                                     Exhibit "B"
                                                               Page 2 of 8 Pages



without the prior consent of Chesapeake, directly or indirectly terminate, own,
acquire, solicit or otherwise interfere with any of Canaan's Oil and Gas
Interests pertaining to or covering in whole in part the Lands or in anyway
attempt to do any of the foregoing or assist any third person to do any of the
foregoing.

     2.1       The limitations in this paragraph 2 will not prohibit any
               investment by the Restricted Party or the Restricted Party Group
               in securities which are listed on a public exchange or the
               National Association of Securities Dealers Automated Quotation
               System issued by a company, firm, corporation, partnership, trust
               or other entity involved in or conducting an Oil and Gas
               Business, provided that the Restricted Party and the Restricted
               Party Group own no more than fifteen percent (15%) of the
               outstanding voting securities of such entity.

     2.2       The parties hereto recognize that, during the Protection Period,
               the Restricted Party and/or the Restricted Party Group may desire
               to acquire one or more packages of Oil and Gas Interests which
               include Oil and Gas Interests both inside and outside the Lands
               (each a "Package"). Nothing in this Agreement will prohibit any
               such acquisition of a Package, and no such acquisition or the
               resulting ownership of such Oil and Gas Interests will constitute
               a violation of this paragraph 2, as long as the number of Oil and
               Gas Interests included in such Package is greater than twenty
               five (25) and the value of the Oil and Gas Interests lying
               outside the Lands exceeds seventy-five percent (75%) of the
               purchase price of the Package. In the event the Restricted Party
               Group acquires a Package which contains more than twenty five
               (25) Oil and Gas Interests but does not satisfy the foregoing or
               which contains less than twenty five (25) Oil and Gas Interests,
               such acquisition and the resulting ownership of such Oil and Gas
               Interests will not constitute a violation of this Agreement, if
               within twenty (20) days after any such acquisition, the
               Restricted Party: (a) notifies Chesapeake of such acquisition,
               specifying the Oil and Gas Interests acquired in the Lands (the
               "Offered Interests") and specifying the portion of the
               acquisition price for such Package allocated to the Offered
               Interests; and (b) grants the Chesapeake Companies the right, for
               a period of twenty (20) days after receipt of such notice, to
               acquire the Offered Interests from the Restricted Party or the
               Restricted Party Group at the same acquisition price paid
               therefor by the Restricted Party or the Restricted Party Group.
               Notwithstanding the foregoing, in the event any of the Offered
               Interests are subject to an existing preferential right to
               purchase ("Third Party Rights"), the Restricted Party will
               provide Chesapeake with all notices of Third Party Rights as and
               when provided to the holders thereof and will take such actions
               as may be prudent to permit the Chesapeake Companies to step into
               the shoes of the Restricted Party during the period such Third
               Party Rights are outstanding so that, in the event such Third
               Party Rights are not exercised in accordance with the terms
               thereof, the Chesapeake Companies will have the ability to
               acquire such Offered Interests without the necessity of
               re-instituting another Third Party Rights offer. For purposes of
               calculating the number of Oil and Gas Interests in a Package, the
               following will be considered an individual Oil and Gas Interest
               under this paragraph: (y) all of the Restricted Group's rights
               and ownership in a governmental spacing or production

                                                                     Exhibit "B"
                                                               Page 3 of 8 Pages



               unit for a producing well; and (z) with respect to non-producing
               assets, all of the Restricted Group's rights and ownership in the
               area covered by a single prospect.

     2.3       Nothing in this Agreement will prevent or prohibit any member of
               the Restricted Party Group from being employed by any Person
               which is not a member of the Restricted Party Group or, so long
               as the member of the Restricted Party Group does not use
               Confidential Information or Derivative Information, from
               assisting any such Person as an advisor, consultant or
               independent contractor, regardless of whether such person or
               entity owns, acquires or solicits the acquisition of any Oil and
               Gas Interests, or any option or other right to acquire any Oil
               and Gas Interests, pertaining to or covering, in whole or in
               part, any of the Lands, or conducts any Oil and Gas Business on
               or with respect to the Lands.

3.   Confidentiality. The Restricted Party hereby acknowledges that, during the
     ---------------
term of the Restricted Party's relationship with Canaan, the Restricted Party
has developed and had access to Confidential Information and Derivative
Information. The Restricted Party hereby agrees as follows with respect to all
Confidential Information and Derivative Information:

     3.1       Upon execution of this Agreement, the Restricted Party will, and
               will cause each member of the Restricted Party Group to,
               immediately return to Canaan all Confidential Information and
               Derivative Information in the possession of the Restricted Party
               or any member of the Restricted Party Group.

     3.2       For a period of two (2) years after the date hereof, the
               Restricted Party will, and will cause the members of the
               Restricted Party Group to, keep all Confidential Information and
               Derivative Information and the results of any analyses of such
               data and information strictly confidential and will not, and will
               cause the members of the Restricted Party Group not to, use any
               of such data, information or results or disclose any such data,
               information or results to any Person unless otherwise required by
               law or regulation and then only after written notice to Canaan of
               the determination of the need for disclosure.

     3.3       In the event that the Restricted Party or any member of the
               Restricted Party Group becomes legally compelled to disclose any
               Confidential Information and/or Derivative Information, the
               Restricted Party will provide Canaan with prompt notice so that
               Canaan may seek a protective order or other appropriate remedy
               and/or waive the Restricted Party's compliance with the
               confidentiality and non-disclosure provisions of this Agreement.
               In the event that such protective order or other remedy is not
               obtained, the Restricted Party will furnish only that portion of
               the Confidential Information and/or Derivative Information which
               it is advised by counsel is legally required.

4.   Separate Covenants. This Agreement will be deemed to consist of a series of
     ------------------
separate covenants independent from any provision of the Merger Agreement. The
Restricted Party expressly agrees that the character, duration and geographical
scope of this Agreement are reasonable in light


                                                                     Exhibit "B"
                                                               Page 4 of 8 Pages



of the circumstances as existing on the date of this Agreement. However, should
a determination nonetheless be made by a court of competent jurisdiction at a
later date that the character, duration or geographical scope of this Agreement
is unreasonable in light of the circumstances as then existing or existing at
the execution of this Agreement, then it is the intention and the agreement of
the Restricted Party, Chesapeake and CHK that this Agreement be construed by the
court and given effect in such a manner as to impose only the restrictions on
the conduct of the Restricted Party which are reasonable in light of the
circumstances as then existing and as are necessary to assure Chesapeake and CHK
of the intended benefit of this Agreement and the Merger Agreement. If, in any
judicial proceeding, a court refuses to enforce all of the separate covenants
included herein because, taken together such covenants are more extensive than
necessary to assure Chesapeake and CHK of the intended benefit of this
Agreement, it is expressly understood and agreed between the parties that those
covenants not to be enforced in such proceeding will, for the purpose of such
proceeding, be deemed eliminated from the provisions hereof.

5.   Periodic Payments. As additional consideration for the Restricted Party's
     -----------------
execution, delivery and performance of this Goodwill Protection Agreement,
Chesapeake agrees to pay to the Restricted Party the sum of $_____________
payable in three (3) equal payments of $_____________ each. The first payment
will be due on the execution of this Agreement, the second payment will be due
on the date which is one (1) year after the execution of this Agreement and the
third payment will be due on the date which is two (2) years after the execution
of this Agreement.

6.   Default. The Restricted Party will be responsible for any violation of
     -------
provisions hereof by any member of the Restricted Party Group. If the Restricted
Party fails to perform any obligation contained in this Agreement or fails to
cause the Restricted Party Group to perform the terms of this Agreement,
Chesapeake or CHK may serve written notice to the Restricted Party specifying
the nature of such default and demanding performance. If such default has not
been cured within five (5) business days after receipt of such default notice,
Chesapeake and/or CHK will be entitled to demand specific performance, suspend
performance of any obligation under this Agreement, or exercise all remedies
available at law or in equity. Given the nature of the assets to be acquired by
Chesapeake under the Merger Agreement, the parties acknowledge and agree that
the goodwill purchased by Chesapeake cannot be protected if the provisions of
this Agreement are not strictly enforced. Accordingly, the parties acknowledge
and agree that, if there is a breach by the Restricted Party of the provisions
of this Agreement, money damages alone will not be adequate and the Chesapeake
Companies will be entitled to an injunction restraining the Restricted Party or
the Restricted Party Group from violating the provisions of this Agreement. The
remedies provided by this Agreement are cumulative and will not exclude any
other remedy to which a party might be entitled under this Agreement. In the
event a party elects to selectively and successively enforce such party's rights
under this Agreement, such action will not be deemed a waiver or discharge of
any other remedy.

7.   Miscellaneous.  It is further agreed as follows:
     -------------

     7.1  Notices. Except as expressly provided herein, any notice, demand or
          -------
          communication required or permitted to be given by any provision of
          this Agreement will be in writing and will be deemed to have been
          given and received when delivered

                                                                     Exhibit "B"
                                                               Page 5 of 8 Pages



          personally or by telefacsimile to the party designated to receive such
          notice, or on the date following the day sent by overnight courier, or
          on the third (3rd) business day after the same is sent by certified
          mail, postage and charges prepaid, directed to the following addresses
          or to such other or additional addresses as any party might designate
          by written notice to the other parties:

                To any of the Chesapeake
                Companies:                  Mr. Henry J. Hood
                                            Chesapeake Energy Corporation
                                            6100 North Western
                                            Oklahoma City, Oklahoma 73118
                                            Telephone: (405) 879-9400
                                            Fax: (405) 405.879.9561

                With a copy to:             Ray Lees, Esquire
                                            Commercial Law Group, P.C.
                                            2725 Oklahoma Tower
                                            210 Park Avenue
                                            Oklahoma City, Oklahoma 73102
                                            Telephone: (405) 232-3001
                                            Fax: (405) 232-5553

                To the Restricted Party:    ________________________________


                                            Telephone: (___) ___-____
                                            Fax: (___) ___-____

     7.2  Severability. If any clause or provision of this Agreement is illegal,
          ------------
          invalid or unenforceable under any present or future law, the
          remainder of this Agreement will not be affected thereby. It is the
          intention of the parties that if any such provision is held to be
          illegal, invalid or unenforceable, there will be added in lieu thereof
          a provision as similar in terms to such provisions as is possible and
          to be legal, valid and enforceable.

     7.3  Entire Agreement. This Agreement, together with the Merger Agreement
          ----------------
          and the other instruments executed in connection therewith, constitute
          the entire agreement between the parties with respect to the subject
          matter hereof and there are no agreements, understandings, warranties
          or representations except as set forth herein and therein. Neither
          this Agreement nor any of the provisions hereof can be changed,
          waived, discharged or terminated except by an instrument signed by the
          party against whom enforcement of the change, waiver, discharge or
          termination is sought.

     7.4  Attorneys' Fees. If any party institutes an action or proceeding
          ---------------
          against any other party relating to the provisions of this Agreement,
          the party to such action or proceeding

                                                                     Exhibit "B"
                                                               Page 6 of 8 Pages



          which does not prevail will reimburse the prevailing party therein for
          the reasonable expenses of attorneys' fees and disbursements incurred
          by the prevailing party.

     7.5  Waiver. Waiver of performance of any obligation or term contained in
          ------
          this Agreement by any party, or waiver by one party of the other's
          default hereunder will not operate as a waiver of performance of any
          other obligation or term of this Agreement or a future waiver of the
          same obligation or a waiver of any future default.

     7.6  Assignment. No party hereto may assign all or any portion of his or
          ----------
          its rights or obligations hereunder without the prior written consent
          of the other parties hereto; provided, however, CHK may assign all or
          any portion of its rights hereunder to (a) any other entity or person
          which at any time controls or is under common control with CHK, or (b)
          any entity or person which acquires all of CHK's Oil and Gas Business
          with respect to the Lands.

     7.7  Governing Law. This Agreement will be interpreted, construed and
          -------------
          enforced in accordance with the laws of the State of Oklahoma.

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

                            CHESAPEAKE ENERGY CORPORATION, an
                            Oklahoma corporation


                            By__________________________________________________
                              Aubrey K. McClendon, Chief Executive Officer

                            ("Chesapeake")


                            CHK ACQUISITION, INC., an Oklahoma corporation


                            By__________________________________________________
                              Aubrey K. McClendon, Chief Executive Officer

                            ("CHK")





                                                                     Exhibit "B"
                                                               Page 7 of 8 Pages



                            ____________________________________________________
                            ______________________________________, individually


                            (the "Restricted Party")


                                                                     Exhibit "B"
                                                               Page 8 of 8 Pages



                             OFFICE SPACE AGREEMENT
                             ----------------------

          THIS AGREEMENT (this "Agreement") is made effective the _____ day of
__________, 2002, between LJ NATURAL GAS COMPANY, an Oklahoma corporation (the
"Option Holder"), and CANAAN ENERGY CORPORATION, an Oklahoma corporation
("Canaan").

                              W I T N E S S E T H:

          WHEREAS, Chesapeake Acquisition, Inc., an Oklahoma corporation
("CHK"), Chesapeake Energy Corporation, an Oklahoma corporation, and Canaan
entered into that certain Agreement and Plan of Merger dated April 19, 2002 (the
"Merger Agreement");

          WHEREAS, Canaan entered into a Lease Agreement with LSQ Investors,
L.L.C., an Oklahoma limited liability company, dated December 4, 2000, as
amended by the First Amendment to Lease Agreement dated effective July 18, 2001,
and the Second Amendment to Lease Agreement dated October 8, 2001 (the "Lease"),
covering certain office space in downtown Oklahoma City, Oklahoma (the "Office
Space");

          WHEREAS, Canaan owns office equipment together with nonproprietary
information concerning oil and gas properties such as scout cards and other
information generally available for purchase or subscription (collectively, the
"Equipment") and leases office equipment ("Equipment Leases") located in the
Office Space which Equipment and items covered by the Equipment Leases are
listed at Schedule "1" attached as a part hereof detailing the items and the
book value of each such item (collectively, the "Office Equipment"); and

          WHEREAS, in connection with the Merger Canaan has determined that the
Office Space and Office Equipment may be surplus and as a result Canaan is
extending to the Option Holder the right to acquire all or part of the Office
Space the Office Equipment.

          NOW, THEREFORE, for good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties agree as follows:

1.   Temporary Office Space. For a period of ninety (90) days after the date of
     ----------------------
this Agreement (the "Use Period") the Option Holder will have the right to
occupy that portion of the Office Space being leased by Canaan on April 1, 2002,
without paying rent on such Office Space and use the Office Equipment. The
foregoing use of the Office Space and Office Equipment is conditioned on: (a)
any consents or other actions which Chesapeake determines is necessary or
appropriate to permit the use by the Option Holder of the Office Space and the
items covered by the Equipment Leases; (b) the payment by the Option Holder of
all expenses (other than base rent under the Lease) allocable or chargeable to
the Use Period including, without implied limitation, any taxes, utilities,
telephone charges, repairs, communication charges, line access charges and other
expenses of occupying the Office Space; and (c) the payment of all charges under
the Equipment Leases allocable to the Use Period. Notwithstanding anything
herein to the contrary, Chesapeake, CHK and Canaan (the "Canaan Parties") will
not be required to take any actions which will impose any expense, liability or

                                                                     Exhibit "C"
                                                               Page 1 of 6 Pages



payment obligation on the Canaan Parties in excess of the amounts that were
being paid by Canaan under the Lease or the Equipment Leases prior to the date
of the Merger Agreement and the Canaan Parties will not be required to amend,
renew, extend or expand the Lease or any of the Equipment Leases.

2.   Office Space Acquisition. The Option Holder will also have the right to
     ------------------------
acquire all or part of the Office Space on the following terms:

     2.1  Option. During the Use Period the Option Holder will have the right to
          ------
          sublease or acquire all or part of the Office Space by providing
          written notice to Canaan specifying the portion of the Office Space to
          be sublet or acquired by the Option Holder. The portion of the Office
          Space to be subleased or acquired hereunder will be a single
          contiguous block of space and will not render the remaining Office
          Space unrentable or unusable at the then current rates in effect in
          the building where the Office Space is located as reasonably
          determined by Chesapeake. The terms of the sublease will be on the
          same terms as the Lease and will be for the remaining term of the
          Lease with respect to such Office Space except that the Option Holder
          will be solely responsible for all costs and expenses relating to the
          separation of the designated space from the remaining Office Space. At
          the election of Canaan, the Option Holder agrees to enter into a new
          lease covering the Office Space covered by the Option Holder's notice
          under this paragraph in order to release the Canaan Parties for any
          liability under the Lease with respect to that portion of the Office
          Space. Each of the actions and agreements under this paragraph are
          expressly subject to any and all consents or waivers by the landlord
          under the Lease which Canaan and Chesapeake reasonably determine are
          necessary or appropriate.

     2.2  Right of First Refusal. Subject to the Option Holder exercising the
          ----------------------
          Option under paragraph 2.1 for a portion of the Office Space, Canaan
          grants to the Option Holder a right of first refusal on that portion
          of the Office Space which the Option Holder does not elect to sublease
          or acquire under paragraph 2.1 of this Agreement to run for the period
          commencing on the last day of the Use Period and ending on the date
          which is two (2) years after the date of this Agreement (the "ROFR
          Period"). In the event that during the ROFR Period Canaan desires to
          sublease, convey, transfer or surrender a portion of the Office Space,
          Canaan will provide written notice (the "Transfer Notice") to the
          Option Holder which states: (a) the portion of the Office Space to be
          sublet, transferred, conveyed or surrendered; and (b) the proposed
          terms of such sublease, conveyance, transfer or surrender. For ten
          (10) days after the receipt of the Transfer Notice, the Option Holder
          will have the preemptive option to acquire the portion of the Office
          Space which is the subject of the Transfer Notice on the terms set
          forth in the Transfer Notice. In the event of a surrender of the Lease
          to the landlord, such terms will include a full release of the Canaan
          Parties from any obligations with respect to the portion of the Office
          Space covered by the Transfer Notice and the payment to the Option
          Holder of any amount payable to the Landlord by Canaan. If the Option
          Holder does not elect to exercise the Option Holder's rights hereunder
          with respect to all of the portion of Office Space covered by the
          Transfer

                                                                     Exhibit "C"
                                                               Page 2 of 6 Pages



          Notice, Canaan will have the right to sublet, transfer, convey or
          surrender the Office Space covered by the Transfer Notice on terms no
          better to the prospective tenant or landlord than the terms set forth
          in the Transfer Notice. The rights under this paragraph will expire
          without any further action by any party on the date which is two (2)
          years after the date of this Agreement. Each of the actions and
          agreements under this paragraph are expressly subject to any and all
          consents or waivers by the landlord under the Lease which Canaan and
          Chesapeake reasonably determine are necessary or appropriate.

3.   Equipment. During the period commencing on the date of this Agreement and
     ---------
ending on the date sixty (60) days after the date of this Agreement, the Option
Holder will have the one (1) time right to: (a) purchase all or part of the
Equipment; and (b) sublease or acquire Canaan's rights under one or more of the
Equipment Leases. Such right will be exercised by the Option Holder providing
written notice to Canaan specifying the Equipment or Equipment Lease to be
acquired, delivering with such notice the cash purchase price for such Equipment
and the appropriate consents and assumption documents for the Equipment Leases.
The purchase price for the Equipment will be equal to: (y) twenty five percent
(25%) of the book value for all of the items of Equipment to be purchased under
this paragraph reduced to the nearest multiple of Twenty-Five Thousand Dollars
($25,000.00); plus (z) all costs and expenses associated with the assumption of
the acquired Equipment Leases. For purposes of the foregoing computation the
book value will be determined as of the later of December 31, 2001, or the date
of the purchase of the item of Equipment. In the event the Option Holder elects
to acquire one or more Equipment Leases the Option Holder will be responsible
for all lease payments and charges under such Equipment Leases and agrees to
hold Canaan harmless with respect to such Equipment Leases. Any computer
purchased under this paragraph will, subject to the terms of the applicable
license, include all software that is validly installed on such computer in
accordance with such license and all rights with respect to the applicable
software license. The Option Holder agrees to hold Canaan harmless from any and
all liability, obligations and losses from breach of such software license.
Although the option under this paragraph can be exercised on a piece by piece
basis, systems or integrated items of Equipment (such as the phone system) must
be purchased in their entirety.

4.   Default. In the event that either party fails to perform such party's
     -------
obligations hereunder (except as excused by the other party's default), the
party claiming default will make written demand for performance. If the Option
Holder fails to comply with such written demand within five (5) days after
receipt thereof, Canaan will have the option of waiving such default, to
exercise any other remedy available at law or in equity, or to terminate this
Agreement. If Canaan fails to comply with such written demand within five (5)
days after receipt thereof, the Option Holder will have the option of waiving
such default or to exercise any other remedy available at law or in equity. The
remedies provided by this Agreement are cumulative and will not exclude any
other remedy to which a party might be entitled under this Agreement. In the
event a party elects to selectively and successively enforce such party's rights
under this Agreement, such action will not be deemed a waiver or discharge of
any other remedy.

                                                                     Exhibit "C"
                                                               Page 3 of 6 Pages



5.     Miscellaneous.  It is further agreed as follows:
       -------------

       5.1   Notices. Except as expressly provided herein, any notice,
             -------
             demand or communication required or permitted to be given by
             any provision of this Agreement will be in writing and will be
             deemed to have been given and received when delivered
             personally or by telefacsimile to the party designated to
             receive such notice, or on the date following the day sent by
             overnight courier, or on the third (3rd) business day after
             the same is sent by certified mail, postage and charges
             prepaid, directed to the following addresses or to such other
             or additional addresses as any party might designate by
             written notice to the other parties:

                      To Canaan:               Mr. Doug Jacobson
                                               Chesapeake Energy Corporation
                                               6100 North Western
                                               Oklahoma City, Oklahoma  73118
                                               Telephone: (405) 879-9233
                                               Fax: (405) 879-9546

                      With a copy to:          Ray Lees
                                               Commercial Law Group, P.C.
                                               2725 Oklahoma Tower
                                               210 Park Avenue
                                               Oklahoma City, Oklahoma  73102
                                               Telephone: (405) 232-3001
                                               Fax: (405) 232-5553

                      To the Option Holder:    LJ Natural Gas Company
                                               211 North Robinson, Suite 1000N
                                               Oklahoma City, Oklahoma 73102
                                               Attention:   John K. Penton
                                               Telephone:   (405) 604-9200
                                               Facsimile:   (405) 604-9295

       5.2   Severability. If any clause or provision of this Agreement is
             ------------
             illegal, invalid or unenforceable under any present or future
             law, the remainder of this Agreement will not be affected
             thereby. It is the intention of the parties that if any such
             provision is held to be illegal, invalid or unenforceable,
             there will be added in lieu thereof a provision as similar in
             terms to such provisions as is possible and to be legal, valid
             and enforceable.

       5.3   Entire Agreement.  This Agreement constitutes the entire agreement
             ----------------
             between the parties with respect to the subject matter hereof and
             there are no agreements, understandings, warranties or
             representations except as set forth herein and therein. Neither
             this Agreement nor any of the provisions hereof can be changed,
             waived,

                                                                     Exhibit "C"
                                                               Page 4 of 6 Pages



       discharged or terminated except by an instrument signed by the party
       against whom enforcement of the change, waiver, discharge or termination
       is sought.

5.4    Attorneys' Fees. If any party institutes an action or proceeding against
       ---------------
       any other party relating to the provisions of this Agreement, the party
       to such action or proceeding which does not prevail will reimburse the
       prevailing party therein for the reasonable expenses of attorneys' fees
       and disbursements incurred by the prevailing party.

5.5    Waiver. Waiver of performance of any obligation or term contained in this
       ------
       Agreement by any party, or waiver by one party of the other's default
       hereunder will not operate as a waiver of performance of any other
       obligation or term of this Agreement or a future waiver of the same
       obligation or a waiver of any future default.

5.6    Assignment. No party hereto may assign all or any portion of his or its
       ----------
       rights or obligations hereunder without the prior written consent of the
       other parties hereto; provided, however, Canaan may assign all or any
       portion of its rights hereunder to any other entity or person which at
       any time controls or is under common control with Canaan.

5.7    Governing Law. This Agreement will be interpreted, construed and enforced
       -------------
       in accordance with the laws of the State of Oklahoma.

5.8    Cooperation. At all times during the term of this Agreement the parties
       -----------
       agree to execute and deliver, or cause to be executed and delivered, such
       documents and do, or cause to be done, such other acts and things as
       might reasonably be requested by the other party to this Agreement to
       assure that the benefits of this Agreement are realized by the parties.

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

                                  CANAAN ENERGY CORPORATION, an Oklahoma
                                  corporation


                                  By____________________________________________
                                    Aubrey K. McClendon, Chief Executive Officer

                                  ("Canaan")

                                                                     Exhibit "C"
                                                               Page 5 of 6 Pages



                                        LJ NATURAL GAS COMPANY, an Oklahoma
                                        corporation


                                        By______________________________________
                                          John K. Penton, President

                                        (the "Option Holder")

                                                                     Exhibit "C"
                                                               Page 6 of 6 Pages



                                     RELEASE
                                     -------

     THIS RELEASE is being executed and delivered in accordance with paragraph
6.2.6 of that certain Agreement and Plan of Merger dated effective April 19,
2002 (the "Agreement"), among Canaan Energy Corporation, an Oklahoma corporation
("Canaan"), CHK Acquisition, Inc., an Oklahoma corporation ("Sub"), and
Chesapeake Energy Corporation ("Parent"). Capitalized terms used in this Release
without definition have the respective meaning given to them in the Agreement.

     The undersigned acknowledges that execution and delivery of this Release is
a condition to Parent's obligation to effect the closing of the transaction
contemplated by the Agreement and that Parent is relying on this Release in
consummating such closing.

     The undersigned, for good and valuable consideration the receipt and
sufficiency of which is hereby acknowledged and intending to be legally bound,
in order to induce Parent to effect the closing pursuant to the Agreement,
hereby agrees as follows:

     The undersigned, on behalf of the undersigned and each of the undersigned's
representatives, agents and Affiliates, hereby releases and forever discharges
Parent, Sub and Canaan and each of their respective individual, joint or mutual,
past, present and future Parent Representatives, Affiliates, stockholders,
controlling persons, subsidiaries, successors and assigns (individually, a
"Released Party" and collectively, the "Released Parties") from any and all
claims, demands, proceedings, causes of action, orders, obligations, contracts,
agreements, debts and liabilities whatsoever, whether known or unknown,
suspected or unsuspected, both at law and in equity, which the undersigned, or
any of the undersigned's representatives, agents and Affiliates now has, have
ever had or may hereafter have against the respective Released Parties arising
contemporaneously with or prior to the Effective Time of the Merger or on
account of or arising out of any matter, cause or event occurring
contemporaneously with or prior to the Effective Time of the Merger, including,
but not limited to, any rights to payment or reimbursement from Canaan, whether
pursuant to its certificate of incorporation, bylaws, contract or otherwise and
whether or not relating to claims pending on, or asserted after, the Effective
Time of the Merger. Notwithstanding the foregoing, the following are expressly
excluded from this Release:(a) all rights of indemnification in favor of the
undersigned pursuant to paragraph 5.8 of the Agreement; (b) rights of the
undersigned, if any, under any employment agreement or consulting agreement
entered into by Parent in connection with the Agreement; (c) any severance
payments described in that certain change of control agreement dated
_______________ between the undersigned and Canaan as disclosed in the
Agreement; (d) any rights under the Office Space Agreement executed in
connection with the Merger Agreement; and (e) any rights under the Goodwill
Protection Agreement of even date herewith among the undersigned, Parent and
Sub.

     The undersigned hereby irrevocably covenants to refrain from, directly or
indirectly, asserting any claim or demand, or commencing, instituting or causing
to be commenced, any proceeding of any kind against any Released Party which is
based upon any matter purported to be released hereby.

                                                                     Exhibit "D"
                                                               Page 1 of 2 Pages



     If any provision of this Release is held invalid or unenforceable by any
court of competent jurisdiction, the other provisions of this Release will
remain in full force and effect. Any provision of this Release held invalid or
unenforceable only in part or degree will remain in full force and effect to the
extent not held invalid or unenforceable.

     This Release may not be changed except in a writing signed by the person(s)
against whose interest such change will operate. This Release will be governed
by and construed under the laws of the State of Oklahoma without regard to
principles of conflicts of law.

     IN WITNESS WHEREOF, the undersigned has executed and delivered this Release
as of this _____ day of ________________, 2002.


                                ________________________________________________
                                [Name of Releasing Party]

                                                                     Exhibit "D"
                                                               Page 2 of 2 Pages




                                [Crowe & Dunlevy]


                                ________ __, 200_


Chesapeake Energy Corporation
CHK Acquisition, Inc.
6100 North Western Avenue
Oklahoma City, Oklahoma 73118

                              Re:  Agreement and Plan of Merger among Chesapeake
                                   Energy Corporation, CHK Acquisition, Inc.,
                                   and Canaan Energy Corporation
                                   ---------------------------------------------

Gentlemen:

     We have acted as special counsel to Canaan Energy Corporation, an Oklahoma
corporation ("Canaan"), in connection with the execution, delivery and
consummation of the transactions contemplated by the Agreement and Plan of
Merger dated April 19, 2002 (the "Agreement"), among Chesapeake Energy
Corporation, an Oklahoma corporation, CHK Acquisition , Inc., an Oklahoma
corporation, and Canaan. This opinion is provided to you pursuant to paragraph
6.2.6 of the Agreement. Capitalized terms used herein and not otherwise defined
will have the meanings assigned to such terms in the Agreement.

     For purposes of the opinions expressed herein we have examined executed
originals or counterparts of the Agreement and all other agreements and
documents known to us which we have considered relevant to the opinions
hereinafter expressed.

     We have also examined the certificate of incorporation and bylaws of
Canaan, as amended to date, and have examined the originals or copies certified
or otherwise identified to our satisfaction of the corporate records of Canaan,
including minute books furnished to us by Canaan, certificates of public
officials and certificates of representatives of Canaan, statutes and other
instruments and documents as we have deemed relevant and necessary as a basis
for the opinions hereinafter expressed. As to all questions of fact material to
this opinion, we have made no independent investigation of the facts relied upon
in certificates or comparable documents of officers and representatives of
Canaan and upon the representations and warranties of Canaan contained in the
Agreement, all of which we assume have been and continue to be true and
accurate.

     In such examination, we have assumed the genuineness of all signatures, the
legal capacity of natural persons, the authenticity of all documents submitted
to us as originals, the conformity to original documents of all documents
submitted to us as certified or photostatic copies and the authenticity of the
originals of such latter documents.

                                                                     Exhibit "E"
                                                               Page 1 of 3 Pages



Chesapeake Energy Corporation
CHK Acquisition, Inc.
__________ __, 200_
Page 2


        On the basis of the foregoing, and subject to the assumptions,
limitations and qualifications set forth herein, we are of the opinion that:

1.   Canaan (a) is a corporation duly incorporated, validly existing and in good
standing under the laws of the State of Oklahoma, and (b) has all requisite
corporate power and authority to conduct its business as presently conducted.
Canaan has all requisite corporate power and authority to execute and deliver
the Agreement and the other documents and instruments contemplated thereunder to
be executed and delivered by Canaan and to consummate the transactions
contemplated thereunder.

2.   The execution and delivery of the Agreement and the consummation of the
transactions contemplated thereunder by Canaan have been duly and validly
authorized by all requisite corporate action on the part of Canaan and the
Agreement has been duly and validly executed and delivered by Canaan.

3.   The authorized capital stock of Canaan consists of 50,000,000 shares of
Canaan Common Stock and 1,000,000 shares of preferred stock, 25,000 of which
have been designated as Series A Junior Participating Preferred Stock , par
value $.01. As of ____________, 2002: (a) 4,353,646 shares of Canaan Common
Stock were validly issued and outstanding; (b) 500,000 shares of Canaan Common
Stock were reserved for issuance pursuant to the Canaan Plans, of which Canaan
Stock Options to purchase a total of 470,450 shares of Canaan Common Stock were
issued and outstanding; (c) there are no shares of capital stock of Canaan of
any class authorized, issued or outstanding other than the Canaan Common Stock ;
and (d) 578,169 shares of Canaan Common Stock were held by Canaan as treasury
stock. Except as described as described in Section of the Canaan Disclosure
Schedule and the Canaan Rights under the Canaan Rights Plan, there are: (i) no
outstanding shares of capital stock or other voting securities of Canaan; (ii)
no outstanding securities of Canaan or any other Person convertible into or
exchangeable or exercisable for shares of capital stock or other voting
securities of Canaan; and (iii) no outstanding subscriptions, options, warrants,
calls, rights (including preemptive rights, stock appreciation rights, phantom
stock rights, conversion rights, commitments, understandings or agreements to
which Canaan is a party or by which it is bound) obligating Canaan to issue,
deliver, sell, purchase, redeem or acquire shares of capital stock or other
securities of Canaan or obligating Canaan to grant, extend or enter into any
such subscription, option, warrant, call, right, commitment, understanding or
agreement. All outstanding shares of capital stock of Canaan are validly issued,
fully paid and nonassessable and not subject to any preemptive right. There is
not stockholder agreement, voting trust or other agreement or understanding to
which Canaan is a party or by which it is bound relating to the voting of any
shares of the capital stock of Canaan.

        The foregoing opinions are subject to the following assumptions,
limitations and qualifications:

1.   The opinions set forth herein are subject to the General Qualifications as
such term is defined and set forth in the Legal Opinion Accord of the ABA
Section of Business Law (1991) and to the

                                                                     Exhibit "E"
                                                               Page 2 of 3 Pages



Chesapeake Energy Corporation
CHK Acquisition, Inc.
__________ ___, 200_
Page 3

effect of (a) applicable bankruptcy, insolvency, reorganization, fraudulent
transfer or conveyance, moratorium, conservatorship and similar laws affecting
creditors' rights and remedies generally, (b) general principles of equity
(whether considered in a proceeding in equity or at law) including, without
limitation, concepts of materiality and commercial reasonableness, and (c) any
implied covenants of good faith or fair dealing.

2.   For purposes of this opinion, we have assumed that each person executing
the Agreement other than Canaan has all requisite power and authority and legal
capacity and has taken all necessary action, partnership, corporate or
otherwise, to execute and deliver the Agreement and the other documents to be
executed in connection therewith, to the extent a party thereto, and to effect
the transactions contemplated thereby, and that each such agreement is the valid
and binding obligations of each such person.

3.   We express no opinion concerning the enforceability of (a) provisions
relating to specific performance, or (b) indemnification provisions to the
extent such provisions are deemed to violate public policy.

4.   Any opinions provided herein that are limited by the provision "to our
knowledge," "known to us" or "to the best of our knowledge" or similar
expressions, will be deemed to express that we have not performed any
investigation except (a) a review of files and records of the Canaan Companies
physically retained at our offices, and (b) the receipt of certificates from
appropriate representatives of the Canaan Companies relating to and verifying
the facts which would support the basis for our opinions.

        The foregoing opinions are limited in all respects to the laws of the
State of Oklahoma and the federal laws of the United States of America, each as
in effect on the date hereof, and no opinion is expressed herein as to any
matters governed by the laws of any other jurisdiction. We undertake no
obligation or responsibility to update or supplement this opinion in response to
subsequent changes in the law or future events affecting any of the transactions
contemplated by the Agreement. The opinions expressed herein are solely for your
benefit in connection with the transactions to be consummated on the date hereof
pursuant to the Agreement and may not be relied on by, or described, furnished
or quoted to any other person, firm or entity other than you without, in each
instance, our prior written consent.


                                         Very truly yours,

                                                                     Exhibit "E"
                                                               Page 3 of 3 Pages