::ODMA\PCDOCS\DOCS\141015\3













                            Stock Purchase Agreement

                                      among

                            Key Rocky Mountain, Inc.,

                                Bruce L. Bummer,

                                 Jack Hartnett,

                                 Diane Hartnett

                                       and

                        Bruce Bummer 7/14/82 Family Trust








                         Dated as of September 30, 1997




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                                TABLE OF CONTENTS

                                                                          Page


                           ARTICLE 1Purchase and Sale
1.1.     Purchase and Sale of the Company Shares.............................1
1.2.     Adjustment of Purchase Price........................................1
1.3.     Closing.............................................................2
1.4.     Closing Deliveries..................................................2
         1.4.1.  Opinion of Buyer=s Counsel..................................2
         1.4.2.  Opinion of Shareholders= Counsel............................3
1.5.     Resignations; Consulting Agreement..................................3

                     ARTICLE 2Representations and Warranties
2.1.     Representations and Warranties of the Shareholders..................3
         2.1.1.   Organization and Standing..................................3
         2.1.2.   Agreement Authorized and its Effect on Other Obligations...4
         2.1.3.   Capitalization.............................................4
         2.1.4.   Ownership of the Company Shares............................4
         2.1.5.   No Subsidiaries............................................4
         2.1.6.   Financial Statements.......................................4
         2.1.7.   Liabilities................................................5
         2.1.8.   Additional Company Information.............................5
         2.1.9.   No Defaults................................................7
         2.1.10.  Absence of Certain Changes and Events......................7
         2.1.11.  Taxes......................................................8
         2.1.12.  Intellectual Property......................................8
         2.1.13.  Title to and Condition of Assets...........................9
         2.1.14.  Contracts..................................................9
         2.1.15.  Licenses and Permits.......................................9
         2.1.16.  Litigation.................................................10
         2.1.17.  Environmental Compliance...................................10
         2.1.18.  Compliance with Other Laws.................................11
         2.1.19.  No ERISA Plans or Labor Issues.............................11
         2.1.20.  Investigations; Litigation.................................12
         2.1.21.  Absence of Certain Business Practices......................12
         2.1.22.  No Untrue Statements.......................................12
         2.1.23.  Consents and Approvals.....................................12
         2.1.24.  Finder=s Fee...............................................13
2.2.     Representations and Warranties of Buyer.............................13
         2.2.1.  Organization and Good Standing..............................13
         2.2.2.  Agreement Authorized and its Effect on Other Obligations....13
         2.2.3.  Consents and Approvals......................................13
         2.2.4.  Finder=s Fee................................................13

                         ARTICLE 3Additional Agreements
3.1.     Noncompetition......................................................13
3.2.     Further Assurances..................................................14
3.3.     Public Announcements................................................14
3.4.     338(h)(10) Election.................................................14
3.5.     Waste Disposal......................................................14

                            ARTICLE 4Indemnification
4.1.     Indemnification by the  Shareholders................................15
4.2.     Indemnification by Buyer............................................15
4.3.     Indemnification Procedure...........................................15
                             ARTICLE 5Miscellaneous
5.1.     Survival of Representations, Warranties and Covenants...............16
5.2.     Entirety............................................................16
5.3.     Counterparts........................................................16
5.4.     Notices and Waivers.................................................16
5.5.     Table of Contents and Captions......................................17
5.6.     Successors and Assigns..............................................17
5.7.     Severability........................................................17
5.8.     Applicable Law......................................................18





::ODMA\PCDOCS\DOCS\141015\3
                            Stock Purchase Agreement

     This Stock  Purchase  Agreement  (this  AAgreement@)  is entered into as of
September 30, 1997,   by  and  among  Key  Rocky  Mountain,   Inc.,  a  Delaware
corporation  (ABuyer@),  and Bruce L. Bummer  (ABummer@),  Jack Hartnett,  Bruce
Bummer  7/14/82  Family  Trust  (AFamily  Trust@)  and Diane  Hartnett  (Bummer,
Hartnett, Diane Hartnett and the Family Trust, collectively the AShareholders@).

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     WITNESSETH                                                                :
- ------------------------------------------------------------------------------

     Whereas,  Buyer is a corporation  duly organized and validly existing under
the laws of the State of Delaware,  with its principal  executive offices at Two
Tower Center, Tenth Floor, East Brunswick, New Jersey 08816;

     Whereas,  Frontier Well Service, Inc. (the ACompany@) is a corporation duly
organized and validly existing under the laws of the State of Wyoming,  with its
principal executive offices at 2377 Melody Lane, Casper, Wyoming 82601;

     Whereas, the Shareholders own 2,000 shares (the ACompany Shares@) of common
stock,  no par  value,  of the  Company  (the  ACompany  Common  Stock@),  which
constitutes  all of the issued and  outstanding  shares of capital  stock of the
Company; and

     Whereas,  the  Shareholders  desire to sell to Buyer,  and Buyer desires to
purchase from the Shareholders,  all of the issued and outstanding capital stock
of the Company.

     Now,  Therefore,  in  consideration  of the  premises  and  of  the  mutual
covenants and agreements  herein  contained,  the parties hereto hereby agree as
follows:

                                    ARTICLE 1

                                Purchase and Sale

ARTICLE 1         Purchase and Sale

     1.1.  Purchase  and  Sale of the  Company  Shares.Purchase  and Sale of the
Company Shares.  Subject to the terms and conditions of this  Agreement,  on the
date hereof,  the Shareholders agree to sell and convey to Buyer, free and clear
of all Encumbrances (as defined in Section 2.1.8.1  hereof), and Buyer agrees to
purchase  and  accept  from the  Shareholders,  all of the  Company  Shares.  In
consideration  of the  sale  of  the  Company  Shares,  Buyer  shall  pay to the
Shareholders a purchase price of $3,500,000 (the APurchase Price@), and the Cash
Adjustment  Payment (as defined in  Section 1.2  hereof),  if any, in accordance
with Section 1.2 hereof.


- -------------------------------------------------------------------------------
                               TABLE OF CONTENTS
- -------------------------------------------------------------------------------
                                   (continued)
                                                                          Page


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     1.2.  Adjustment of Purchase Price1.2.  Adjustment of Purchase Price. Buyer
shall cause to be prepared and  delivered  to the  Shareholders  a  consolidated
balance sheet of the Company as of the date hereof (the AFinal  Balance  Sheet@)
within 60 days after the date hereof,  which  balance  sheet will be prepared in
accordance with generally accepted accounting  principles,  consistently applied
in all  respects  (which  shall not include any reserve or accruals for employee
termination  costs).  Buyer and the Shareholders  shall jointly review the Final
Balance Sheet, and endeavor in good faith to resolve all disagreements regarding
the entries thereon and reach a final determination  thereof within 90 days from
the date hereof. In the event that the parties cannot agree on the entries to be
placed  on  the  Final  Balance  Sheet,  the  dispute  will  be  resolved  by an
independent  accounting  firm mutually agreed to by the  Shareholders  and Buyer
(such  agreement not to be  unreasonably  withheld or delayed) whose  resolution
shall be binding on and enforceable  against the parties hereto.  Within 10 days
of reaching such final determination,  the following adjusting payments shall be
made:

     (1) If the sum of (A) the Final Net Current  Value of the Company  (defined
below) plus (B) any amounts spent by the Company as capital expenditures used to
expand the Company=s business (the ACapital  Expenditure Amount@) exceeds $0.00,
Buyer  shall pay to the  Shareholders  the  amount  of such  excess  (the  ACash
Adjustment Payment@); or

     (2) If the sum of (A) the Final Net Current  Value of the Company  plus the
Capital  Expenditure  Amount is less than $0.00,  the  Shareholder  shall pay to
Buyer the amount of such difference.

     The term AFinal Net Current Value of the Company@ means the dollar value of
the amount by which the  ATotal  Current  Assets@  (excluding  ACash  Value-Life
Insurance@)  as recorded on the Final Balance  Sheet exceeds the ATotal  Current
Liabilities@  as recorded on the Final Balance Sheet.  In determining  the Final
Net  Current  Value of the  Company,  the Buyer  shall have the option to either
acquire and pay for the  uncollected  receivables  listed on  Schedule  2.1.6 or
assign such  uncollected  receivables to Sellers and, to the extent so assigned,
the amount of such assigned  uncollected  receivables shall be deducted from the
Net Current Value of the Company.

     1.3. Closing.Closing. Consummation of the transactions contemplated by this
Agreement (the AClosing@) shall take place at the offices or the Company located
at 2377 Melody Lane, Casper,  Wyoming 82601  at 9:00 a.m.  on September 30, 1997
(the AClosing  Date@),  unless  another time,  place or date is agreed to by the
Shareholders and the Buyer.

     1.4.  Closing  Deliveries.Closing  Deliveries.  At  the  Closing,  (a)  the
Shareholders  shall  deliver to Buyer  duly and  validly  issued  certificate(s)
representing  all shares of Company  Shares owned  beneficially  or of record by
them,  each such  certificate  to be duly endorsed in blank and in good form for
transfer,  or accompanied by stock powers duly executed in blank  sufficient and
in good form to properly transfer such shares to Buyer, (b) the Shareholders and
Buyer shall have delivered to one another all other  documents,  instruments and
agreements  as required  under this  Agreement,  (c) Buyer shall  deliver to the
Shareholders  the  cash  purchase  price  payable  at  Closing  as  provided  in
Section 1.1  by a  check  drawn  on the  account  of  Buyer  or  one of  Buyer=s
affiliates,  and (d) the Buyer and Shareholders  will deliver to one another the
opinions of counsel as described below:

     1.4.1.  Opinion of Buyer=s  Counsel.Opinion  of Buyer=s Counsel.  The Buyer
shall deliver a favorable  opinion,  dated as of the Closing Date, from Porter &
Hedges, L.L.P., counsel for the Buyer, in form and substance satisfactory to the
Shareholders, to the effect that (i) the Buyer has been duly incorporated and is
validly  existing as a corporation  in good standing under the laws of its state
of organization;  (ii) all corporate  proceedings  required to be taken by or on
the part of the Buyer to  authorize  the  execution  of this  Agreement  and the
implementation  of the  transactions  contemplated  hereby have been taken;  and
(iii) this  Agreement has been duly executed and delivered by, and is the legal,
valid and binding  obligation of the Buyer and is  enforceable  against Buyer in
accordance  with  its  terms,   except  as  enforceability  may  be  limited  by
(a) equitable principles of general applicability or (b) bankruptcy, insolvency,
reorganization,  fraudulent  conveyance or similar laws  affecting the rights of
creditors  generally.  In  rendering  such  opinion,  such counsel may rely upon
(i) certificates  of public officials and of officers of the Buyer as to matters
of fact and (ii) the opinion or opinions of other counsel,  which opinions shall
be reasonably satisfactory to the Shareholders, as to matters other than federal
or Texas law.

     1.4.2. Opinion of Shareholders=  Counsel.Opinion of Shareholders=  Counsel.
The Shareholders shall deliver a favorable opinion, dated the Closing Date, from
Jeffrey  C.  Gosman,  counsel  to  the  Shareholders,   in  form  and  substance
satisfactory  to  Buyer,  to the  effect  that  (i) the  Company  has been  duly
incorporated and is validly existing as a corporation in good standing under the
laws of the State of Wyoming  and is  qualified  to  transact  business in every
jurisdiction  in  which  the  nature  of the  Company=s  contacts  require  such
qualification, (ii) all outstanding shares of the Company Common Stock have been
validly  issued and are fully paid and  nonassessable;  (iii) all of the Company
Shares  are owned  beneficially  and of record by the  Shareholders  free of any
Encumbrances;  (iv) the  Company  owns all of its  assets  free and clear of any
Encumbrances  other  than  those  Encumbrances  listed on the  Balance  Sheet or
Schedules  hereto,  and (v) this  Agreement has been duly executed and delivered
by, and is the legal,  valid and binding  obligation of the  Shareholders and is
enforceable  against the Company and the  Shareholders  in  accordance  with its
terms,  except as the enforceability may be limited by (a) equitable  principles
of  general  applicability  or  (b)  bankruptcy,   insolvency,   reorganization,
fraudulent  conveyance  or  similar  laws  affecting  the  rights  of  creditors
generally.   In  rendering  such  opinion,   such  counsel  may  rely  upon  (i)
certificates  of  public  officials  and  of  officers  of  the  Company  or the
Shareholders  as to matters of fact and (ii) on the opinion or opinions of other
counsel, which opinions shall be reasonably satisfactory to Buyer, as to matters
other than federal or Wyoming law.

     1.5. Resignations; Consulting Agreement.Resignations; Consulting Agreement.
At the Closing,  each of the officers and  directors of the Company will resign,
and Buyer will enter into a Consulting  Agreement  with Bummer and an Employment
Agreement  with  Hartnett  (the  AEmployment  Agreement@)  in form and substance
satisfactory to the parties thereto.

                                    ARTICLE 2

                         Representations and Warranties

ARTICLE 2         Representations and Warranties

     2.1. Representations and Warranties of the Shareholders.Representations and
Warranties of the Shareholders.  Each of the Shareholders  jointly and severally
represents and warrants to Buyer as follows:

     2.1.1.  Organization and Standing.Organization and Standing. The Company is
a corporation  duly organized,  validly  existing and in good standing under the
laws of the State of Wyoming,  has full requisite  corporate power and authority
to carry on its  business as it is currently  conducted,  and to own and operate
the  properties  currently  owned and  operated by it, and is duly  qualified or
licensed  to do  business  and is in  good  standing  as a  foreign  corporation
authorized  to do business in all  jurisdictions  in which the  character of the
properties  owned or the nature of the business  conducted by it would make such
qualification or licensing necessary.

     2.1.2.  Agreement Authorized and its Effect on Other  Obligations.Agreement
Authorized and its Effect on Other  Obligations.  Each of the  Shareholders is a
resident of Wyoming,  above the age of 18 years,  and has the legal capacity and
requisite power and authority to enter into, and perform his  obligations  under
this Agreement.  This Agreement is a valid and binding obligation of each of the
Shareholders enforceable against each of the Shareholders in accordance with its
terms. The execution,  delivery and performance of this Agreement by the Company
and each of the Shareholders  will not conflict with or result in a violation or
breach of any term or  provision  of,  nor  constitute  a default  under (i) the
Certificate of  Incorporation  or Bylaws of the Company or (ii) any  obligation,
indenture,  mortgage, deed of trust, lease, contract or other agreement to which
the Company or either of the  Shareholders is a party or by which the Company or
either of the Shareholders or their respective properties are bound.

     2.1.3. Capitalization.Capitalization.  The authorized capitalization of the
Company  consists of 50,000  shares of Company Common Stock, of which, as of the
date hereof,  2,000 shares are issued and outstanding and held  beneficially and
of record by the Shareholders. On the date hereof, the Company does not have any
outstanding options, warrants, calls or commitments of any character relating to
any of its  authorized  but  unissued  shares of capital  stock.  All issued and
outstanding  shares of Company Common Stock are validly  issued,  fully paid and
non-assessable and are not subject to preemptive rights. None of the outstanding
shares of Company Common Stock is subject to any voting trusts, voting agreement
or other agreement or understanding  with respect to the voting thereof,  nor is
any proxy in existence with respect thereto.

     2.1.4. Ownership of the Company Shares.Ownership of the Company Shares. The
Shareholders  hold good and valid title to all of the Company  Shares,  free and
clear of all  Encumbrances.  The  Shareholders  possess full authority and legal
right to sell,  transfer and assign the Company Shares to Buyer,  free and clear
of all  Encumbrances.  Upon transfer to Buyer by the Shareholders of the Company
Shares,  Buyer will own the Company  Shares free and clear of all  Encumbrances.
There are no claims pending or, to the knowledge of either of the  Shareholders,
threatened,  against the Company or either of the  Shareholders  that concern or
affect  title to the  Company  Shares,  or that seek to compel the  issuance  of
capital stock or other securities of the Company.

     2.1.5.  No  Subsidiaries2.1.5.  No  Subsidiaries.  There is no corporation,
partnership,  joint  venture,  business trust or other legal entity in which the
Company, either directly or indirectly through one or more intermediaries,  owns
or holds beneficial or record ownership of the outstanding voting securities.

     2.1.6.  Financial  Statements2.1.6.Financial  Statements.  The  Company has
delivered  to  Buyer  copies  of the  Company=s  unaudited  balance  sheet as of
June 30,  1997, a copy of which is attached  hereto as Schedule 2.1.6 (the A6/30
Balance Sheet@), and related statements of income (collectively,  the AFinancial
Statements@),  as at and for the six  months  ended  as of  June 30,  1997  (the
ABalance  Sheet Date@).  The Financial  Statements  are complete in all material
respects. The Financial Statements present fairly the financial condition of the
Company as at the dates and for the periods indicated.  The Financial Statements
have been prepared in accordance with generally accepted  accounting  principles
applied  on a  consistent  basis.  Except as set forth on  Schedule  2.1.6,  the
accounts  receivable  reflected  in the 6/30 Balance  Sheet,  or which have been
thereafter  acquired by the Company,  have been collected or are  collectible at
the aggregate recorded amounts thereof less applicable reserves,  which reserves
are  adequate.  The  inventories  of the Company  reflected  in the 6/30 Balance
Sheet,  or which have  thereafter  been  acquired  by it,  consist of items of a
quality usable and salable in the normal course of the Company=s  business,  and
the values at which inventories are carried are at the lower of cost or market.

     2.1.7.   Liabilities2.1.7.Liabilities.   The  Company  does  not  have  any
liabilities or  obligations,  either  accrued,  absolute or  contingent,  nor do
either of the  Shareholders  have any knowledge of any potential  liabilities or
obligations,  other than those  (i) reflected  or  reserved  against in the 6/30
Balance  Sheet or  (ii) incurred  in the ordinary  course of business  since the
Balance  Sheet Date that  would not  materially  adversely  affect the value and
conduct of the business of the Company

     2.1.8. Additional Company Information2.1.8. Additional Company Information.
Attached as  Schedule 2.1.8  hereto are true,  complete and correct lists of the
following items:

     2.1.8.1. Real Estate2.1.8.1.  Real Estate. All real property and structures
thereon  owned,  leased or subject to a contract of purchase and sale,  or lease
commitment,  by the Company,  with a description of the nature and amount of any
Encumbrances   thereon.  The  term  AEncumbrances@  means  all  liens,  security
interests,  pledges, mortgages, deeds of trust, claims, rights of first refusal,
options,  charges,   restrictions  or  conditions  to  transfer  or  assignment,
liabilities,   obligations,   privileges,  equities,  easements,  rights-of-way,
limitations,  reservations,  restrictions and other  encumbrances of any kind or
nature;

     2.1.8.2. Machinery and Equipment2.1.8.2. Machinery and Equipment. All rigs,
carriers, rig equipment, machinery,  transportation equipment, tools, equipment,
furnishings, and fixtures owned, leased or subject to a contract of purchase and
sale, or lease  commitment,  by the Company with a description of the nature and
amount of any Encumbrances thereon;

     2.1.8.3.  Inventory2.1.8.3.  Inventory.  All  inventory  items or groups of
inventory  items  owned by the  Company,  excluding  raw  materials  and work in
process,  which raw materials and work in process are valued on the 6/30 Balance
Sheet, together with the amount of any Encumbrances thereon;

     2.1.8.4. Receivables2.1.8.4. Receivables. All accounts and notes receivable
of the Company,  together with (i) aging schedules by invoice date and due date,
(ii) the amounts provided for as an allowance for bad debts,  (iii) the identity
and  location  of any asset in which the  Company  holds a security  interest to
secure payment of the  underlying  indebtedness,  and (iv) a  description of the
nature and amount of any Encumbrances on such accounts and notes receivable;

     2.1.8.5.  Payables2.1.8.5.  Payables. All accounts and notes payable of the
Company,   together  with  an  appropriate  aging  schedule.  The  amounts  owed
represented  by the line items  ACurrent  MaturitiesCNotes  Payable@  and ANotes
PayableCDue After One Year@ on the 6/30 Balance Sheet still owed and outstanding
(including  accrued  and unpaid  interest)  as of the date  hereof is $0.00 (the
ANotes Payable Amount@);

     2.1.8.6.  Insurance2.1.8.6.  Insurance.  All  insurance  policies  or bonds
currently  maintained by the Company,  including title insurance policies,  with
respect to the Company, including those covering the Company=s properties, rigs,
machinery,  equipment,  fixtures, employees and operations, as well as a listing
of any premiums,  deductibles,  audit adjustments or retroactive adjustments due
or pending on such policies or any predecessor policies;

     2.1.8.7. Contracts2.1.8.7. Contracts. All contracts, including leases under
which the Company is lessor or lessee,  which are to be performed in whole or in
part after the date hereof;

     2.1.8.8. Employee Compensation  Plans2.1.8.8.  Employee Compensation Plans.
All  bonus,  incentive  compensation,  deferred  compensation,   profit-sharing,
retirement,  pension, welfare, group insurance, death benefit, or other employee
benefit or fringe benefit plans, arrangements or trust agreements of the Company
or any employee benefit plan maintained by the Company,  together with copies of
the most  recent  reports  with  respect to such plans,  arrangements,  or trust
agreements filed with any  governmental  agency and all Internal Revenue Service
determination  letters and other correspondence from governmental  entities that
have been  received  with  respect to such  plans,  arrangements  or  agreements
(collectively, AEmployee Plans@);

     2.1.8.9.  Salaries2.1.8.9.  Salaries.  The  names and  salary  rates of all
present  employees  of the Company,  and, to the extent  existing on the date of
this Agreement,  all arrangements with respect to any bonuses to be paid to them
from and after the date of this Agreement;

     2.1.8.10.  Bank  Accounts2.1.8.10.  Bank Accounts. The name of each bank in
which the Company has an account and the names of all persons authorized to draw
thereon;

     2.1.8.11. Employee Agreements2.1.8.11.  Employee Agreements. Any collective
bargaining   agreements   of  the   Company   with  any  labor  union  or  other
representative of employees,  including amendments,  supplements, and written or
oral understandings,  and all employment and consulting and severance agreements
of the Company;

     2.1.8.12.   Intellectual   Property2.1.8.12.   Intellectual  Property.  All
patents,   patent   applications,   trademarks  and  service  marks   (including
registrations and applications  therefor),  trade names,  copyrights and written
know-how,  trade secrets and all other similar proprietary data and the goodwill
associated  therewith  (collectively,  the AIntellectual  Property@) used by the
Company;

     2.1.8.13. Trade Names2.1.8.13.  Trade Names. All trade names, assumed names
and fictitious  names used or held by the Company,  whether and where such names
are registered and where used;

     2.1.8.14. Licenses and Permits2.1.8.14.  Licenses and Permits. All permits,
authorizations,  certificates,  approvals,  registrations,  variances,  waivers,
exemptions, rights-of-way,  franchises, ordinances, licenses and other rights of
every kind and  character  (collectively,  the  APermits@)  of the Company under
which it conducts its business;

     2.1.8.15.  Promissory  Notes2.1.8.15.  Promissory  Notes. All long-term and
short-term  promissory notes,  installment  contracts,  loan agreements,  credit
agreements,  and any other  agreements of the Company  relating  thereto or with
respect to collateral securing the same;

     2.1.8.16. Guaranties2.1.8.16. Guaranties. All indebtedness, liabilities and
commitments  of others  and as to which the  Company is a  guarantor,  endorser,
co-maker, surety, or accommodation maker, or is contingently liable therefor and
all  letters of credit,  whether  stand-by or  documentary,  issued by any third
party;

     2.1.8.17.  Reserves  and  Accruals.2.1.8.17.  Reserves  and  Accruals.  All
accounting reserves and accruals maintained in the 6/30 Balance Sheet;

     2.1.8.18.  Leases.2.1.8.18.  Leases.  All leases to which the  Company is a
party; and

     2.1.8.19.  Environment.2.1.8.19.  Environment.  All environmental  permits,
approvals,   certifications,   licenses,   registrations,   orders  and  decrees
applicable to current operations  conducted by the Company and all environmental
audits, assessments,  investigations and reviews conducted by the Company within
the last five years or otherwise  in the  Company=s  possession  on any property
owned, leased or used by the Company.

     2.1.9. No  Defaults.2.1.9.  No Defaults.  The Company is not a party to, or
bound by, any contract or arrangement of any kind to be performed after the date
hereof,  nor is the Company in default in any obligation or covenant on its part
to be performed  under any obligation,  lease,  contract,  order,  plan or other
arrangement.

     2.1.10.  Absence of Certain  Changes and  Events2.1.10.  Absence of Certain
Changes and Events. Except as disclosed on Schedule 2.1.10 hereto and other than
as a result  of the  transactions  contemplated  by this  Agreement,  since  the
Balance Sheet Date, there has not been:

     2.1.10.1. Financial Change2.1.10.1. Financial Change. Any adverse change in
the financial condition, backlog, operations, assets, liabilities or business of
the Company;

     2.1.10.2.  Property  Damage2.1.10.2.  Property Damage. Any material damage,
destruction,  or loss to the business or properties  of the Company  (whether or
not  covered  by  insurance);   2.1.10.3.   Dividends2.1.10.3.   Dividends.  Any
declaration,  setting aside, or payment of any dividend or other distribution in
respect of the  Company  Common  Stock,  or any direct or  indirect  redemption,
purchase or any other acquisition by the Company of any such stock;

     2.1.10.4. Capitalization Change2.1.10.4.  Capitalization Change. Any change
in the  capital  stock or in the number of shares or  classes  of the  Company=s
authorized or outstanding capital stock as described in Section 2.1.3 hereof;

     2.1.10.5.  Labor Disputes2.1.10.5.  Labor Disputes. Any labor or employment
dispute of whatever nature; or

     2.1.10.6. Other Material Changes2.1.10.6. Other Material Changes. Any other
event or condition known to either of the Shareholders  particularly  pertaining
to and adversely affecting the operations, assets or business of the Company.

     2.1.11. Taxes2.1.11. Taxes.

     2.1.11.1. GeneralGeneral. All federal, state and local income, value added,
sales, use,  franchise,  gross revenue,  turnover,  excise,  payroll,  property,
employment,  customs,  duties and any and all other tax  returns,  reports,  and
estimates have been filed with appropriate  governmental agencies,  domestic and
foreign, by the Company for each period for which any such returns,  reports, or
estimates  were due (taking into account any  extensions  of time to file before
the date  hereof);  all such returns are true and correct;  the Company has only
done  business in  Wyoming,  Colorado,  Nevada,  North  Dakota,  Montana and New
Mexico;  all taxes  shown by such  returns to be payable and any other taxes due
and payable have been paid other than those being contested in good faith by the
Company;  and the tax provision reflected in the 6/30 Balance Sheet is adequate,
in  accordance  with  generally  accepted   accounting   principles,   to  cover
liabilities  of the  Company at the date  thereof for all taxes,  including  any
assessed  interest,  assessed  penalties and additions to taxes of any character
whatsoever applicable to the Company or its assets or business. No waiver of any
statute of  limitations  executed by the Company  with  respect to any income or
other tax is in effect for any  period.  The income tax  returns of the  Company
have  never  been  examined  by the  Internal  Revenue  Service  or  the  taxing
authorities of any other  jurisdiction.  There are no tax liens on any assets of
the Company  except for taxes not yet currently  due. The Company is not subject
to any  tax-sharing  or allocation  agreement.  The Company is not and never has
been, a member of a consolidated group subject to Treasury  Regulation  1.1502-6
or any similar  provision.  The Company has not  received  any notice and has no
knowledge  of any  proposal  for  increasing  the  assessed  value of any of the
Company=s  properties for tax purposes,  or of any pending proceedings or public
improvements  which would  result in the levy of any  special tax or  assessment
against any of the Company=s properties.

     2.1.11.2. Subchapter S MattersSubchapter S Matters. The Company (i) made an
effective,  valid and binding  S election  pursuant to  Section 1362 of the Code
effective   August 6,   1975,   (ii) has  since  maintained  its  status  as  an
S Corporation   pursuant  to   Section 1361   of  the  Code  without   lapse  or
interruption,  and (iii) has made and continuously  maintained elections similar
to the federal  S election in each state or local jurisdiction where the Company
does  business  or is required to file a tax return to the extent such states or
jurisdictions  permit such elections.  The Company neither is nor will or can be
subject to the built-in gains tax under  Section 1374 of the Code or any similar
corporate level tax imposed on the Company by any taxing authority.  The Company
(i) has not adopted or utilized  LIFO as a method of accounting  for  inventory,
and (ii) has no other tax item,  election,  agreement or  adjustment  which will
accelerate or trigger  income or deferred  deductions of the Company as a result
of termination of the Company=s status as an S Corporation.

     2.1.12.  Intellectual  Property2.1.12.  Intellectual  Property. The Company
owns or  possesses  licenses  to use all  Intellectual  Property  that is either
material to the business of the Company or that is necessary  for the  rendering
of any services  rendered by the Company and the use or sale of any equipment or
products used or sold by the Company,  including all such Intellectual  Property
listed in  Schedule 2.1.8  hereto (the ARequired  Intellectual  Property@).  The
Required  Intellectual  Property is owned or  licensed  by the Company  free and
clear of any  Encumbrance.  The Company has not granted to any other  person any
license  to  use  any  Required  Intellectual  Property.  The  Company  has  not
infringed, misappropriated, or conflicted with, the Intellectual Property rights
of others in connection with the use by the Company of the Required Intellectual
Property  or  otherwise  in  connection  with  the  Company=s  operation  of its
business,  nor has the Company  has  received  any notice of such  infringement,
misappropriation, or conflict such Intellectual Property rights of others.

     2.1.13.  Title to and Condition of Assets2.1.13.  Title to and Condition of
Assets.  The  Company has good,  indefeasible  and  marketable  title to all its
properties,  interests in properties and assets, real and personal, reflected in
the  6/30  Balance  Sheet or in  Schedule 2.1.8  hereto,  free and  clear of any
Encumbrance of any nature whatsoever,  except Encumbrances reflected in the 6/30
Balance  Sheet or in  Schedule 2.1.8  hereto.  All leases  pursuant to which the
Company leases (whether as lessee or lessor) any  substantial  amount of real or
personal property are in good standing,  valid, and effective; and there is not,
under any such leases,  any existing  default or event of default or event which
with notice or lapse of time, or both, would constitute a default by the Company
and in respect to which the  Company has not taken  adequate  steps to prevent a
default from occurring.  The buildings and premises of the Company that are used
in its  business are in good  operating  condition  and repair,  subject only to
ordinary  wear and tear.  All rigs,  rig  equipment,  machinery,  transportation
equipment,  tools and other major items of  equipment of the Company are in good
operating condition and in a state of good maintenance and repair, ordinary wear
and tear excepted, and are free from any known defects except as may be repaired
by routine maintenance. All such assets conform to all applicable laws governing
their  use.  The  Company  has not  violated  any law,  statute,  ordinance,  or
regulation  relating to any such  assets,  nor has any notice of such  violation
been received by the Company or either of the Shareholders,  except such as have
been fully complied with.

     2.1.14.   Contracts.Contracts.   All  contracts,  leases,  plans  or  other
arrangements  to which the Company is a party,  by which it is bound or to which
it or its assets are subject are in full force and effect,  and constitute valid
and binding obligations of the Company. The Company is not, and to the knowledge
of the Company or any of the Shareholders,  no other party to any such contract,
lease,  plan or other  arrangement is, in default  thereunder,  and no event has
occurred which (with or without  notice,  lapse of time, or the happening of any
other event) would constitute a default thereunder. No contract has been entered
into on terms which could  reasonably  be expected to have an adverse  effect on
the Company. Neither the Company nor either of the Shareholders has received any
information  which would cause such the Company or such Shareholders to conclude
that any  customer  of the Company  will (or is likely to) cease doing  business
with the  Company (or its  successors)  as a result of the  consummation  of the
transactions contemplated hereby.

     2.1.15.  Licenses and  Permits.Licenses  and Permits. The Company possesses
all  Permits  necessary  under law or  otherwise  for the Company to conduct its
business as now being conducted and to construct, own, operate, maintain and use
its  assets in the  manner in which  they are now being  constructed,  operated,
maintained and used,  including all such Permits listed in Schedule 2.1.8 hereto
(collectively,  the ARequired  Permits@).  Each of the Required  Permits and the
Company=s rights with respect thereto is valid and subsisting, in full force and
effect,  and  enforceable  by the Company  subject to  administrative  powers of
regulatory agencies having jurisdiction, and will continue will continue in full
force and effect after the Closing  Date.  The Company is in  compliance  in all
respects  with the terms of each of the Required  Permits.  None of the Required
Permits  have  been,  or to  the  knowledge  of the  Company  or  either  of the
Shareholders, is threatened to be, revoked, canceled, suspended or modified.

     2.1.16.  Litigation2.1.16.  Litigation.  Except  as set  forth in  Schedule
2.1.16 hereto, there is no suit, action, or legal, administrative,  arbitration,
or other proceeding or governmental  investigation  pending to which the Company
is a party or, to the knowledge of any of the Company or the Shareholders, might
become a party or which  particularly  affects the Company or its assets, nor is
any change in the zoning or  building  ordinances  directly  affecting  the real
property or leasehold interests of the Company,  pending or, to the knowledge of
any of the either of the Shareholders, threatened.

     2.1.17. Environmental Compliance.Environmental Compliance.

     2.1.17.1. Environmental Conditions2.1.17.1. Environmental Conditions. There
are no environmental conditions or circumstances, including, without limitation,
the  presence  or release of any  Substance  of  Environmental  Concern,  on any
property presently or previously owned, leased or operated by the Company, or on
any property to which any Substance of Environmental  Concern or waste generated
by the  Company=s  operations or use of its assets were disposed of, which could
have or  result  in a  material  adverse  effect  on the  business  or  business
prospects of the Company.  The term ASubstance of  Environmental  Concern@ means
(a) any  gasoline,  petroleum  (including  crude oil or any  fraction  thereof),
petroleum  product,  polychlorinated  biphenyls,  urea-formaldehyde  insulation,
asbestos, pollutant, contaminant,  radiation, and (b) any other substance of any
kind,  whether or not any such substance is defined as toxic or hazardous  under
any Environmental Law (as defined in Section 2.1.17.3 hereof), that is regulated
pursuant to or could give rise to  liability  under any  existing  Environmental
Law;

     2.1.17.2. Permits,  etc2.1.17.2.  Permits, etc. The Company has, and within
the period of all applicable  statutes of limitations has had, in full force and
effect all  environmental  Permits  required to conduct its operations,  and is,
within the period of all applicable statutes of limitations has been,  operating
in compliance thereunder;

     2.1.17.3. Compliance2.1.17.3.  Compliance. The Company=s operations and use
of its  assets  are,  and  within  the  period  of all  applicable  statutes  of
limitations,   have  been  in  compliance  with  applicable  Environmental  Law.
AEnvironmental  Law@ as used  herein  means  any and all  laws,  rules,  orders,
regulations, statutes, ordinances, codes, decrees, and other legally enforceable
requirements (including,  without limitation,  common law) of the United States,
or  any  state,   local,   municipal   or  other   governmental   authority   or
quasi-governmental authority,  regulating, relating to, or imposing liability or
standards of conduct  concerning  protection  of the  environmental  or of human
health, or employee health and safety as from time to time has been or is now in
effect;

     2.1.17.4. Environmental Claims2.1.17.4. Environmental Claims. No notice has
been  received  by the  Company or either of the  Shareholders  from any entity,
governmental agency or individual regarding any existing,  pending or threatened
investigation, inquiry, enforcement action. litigation, or liability, including,
without  limitation  any  claim  for  remedial  obligations,  response  costs or
contribution, relating to any Environmental Law;

     2.1.17.5.   Enforcement.Enforcement.   Neither  the  Company,  and  to  the
knowledge of either of the  Shareholders,  nor any predecessor of the Company or
any other party acting on behalf of the  Company,  has entered into or agreed to
any consent, decree, order, settlement or other agreement, nor is subject to any
judgment,  decree,  order or other agreement,  in any judicial,  administrative,
arbitral,  or other forum,  relating to compliance  with or liability  under any
Environmental Law;

     2.1.17.6. Liabilities.Liabilities. The Company has not assumed or retained,
by  contract  or  operation  of law,  any  liabilities  of any  kind,  fixed  or
contingent, known or unknown, under any Environmental Law;

     2.1.17.7. Renewals2.1.17.7. Renewals. Neither the Company nor either of the
Shareholders  knows of any reason the Company (or its  successors)  would not be
able to renew without  material expense any of the permits,  licenses,  or other
authorizations  required  pursuant  to any  Environmental  Law to use any of the
Company=s assets or to conduct current or planned operations; and

     2.1.17.8. Asbestos and PCBs2.1.17.8. Asbestos and PCBs. No material amounts
of friable  asbestos  currently  exist on any property  owned or operated by the
Company,  nor do  polychlorinated  biphenyls exist in concentrations of 50 parts
per million or more in electrical  equipment  owned or being used by the Company
in its operations or on its properties.

     2.1.18.  Compliance with Other Laws2.1.18.  Compliance with Other Laws. The
Company is not in  violation  of or in default  with  respect  to, or in alleged
violation of or alleged  default with  respect to, the  Occupational  Safety and
Health Act (29 U.S.C. ''651 et seq.) as amended,  or any other applicable law or
any  applicable  rule,  regulation,  or any writ or  decree  of any court or any
governmental   commission,   board,  bureau,  agency,  or  instrumentality,   or
delinquent with respect to any report required to be filed with any governmental
commission, board, bureau, agency or instrumentality.

     2.1.19.  No  ERISA  Plans or Labor  Issues2.1.19.  No ERISA  Plans or Labor
Issues.  Except as set forth on Schedule 2.1.19,  the Company does not currently
sponsor, maintain or contribute to and has not at any time sponsored, maintained
or  contributed  to any  employee  benefit  plan which is or was  subject to any
provisions of the Employee  Retirement  Income  Security Act of 1974, as amended
(AERISA@). Except as set forth on Schedule 2.1.19, the Company does not maintain
any  plan,  program,   policy,  contract  or  other  arrangement  that  provides
retirement, medical, dental, disability, life insurance or other benefits to any
current or former employees of the Company,  including any retired employees, or
their  beneficiaries  or  dependents.  The Company is not  obligated  to pay any
severance or benefits to any  employee or former  employee of the Company as the
result of any change in the ownership or control of the Company. The Company has
not engaged in any unfair labor practices which could  reasonably be expected to
result in an adverse  effect on its  operations or assets.  The Company does not
have any existing  dispute with any of its existing or former  employees.  There
are  no  existing  labor  disputes  or,  to  the  knowledge  of  either  of  the
Shareholders,  any  disputes  threatened  by current or former  employees of the
Company.

     2.1.20. Investigations;  Litigation2.1.20.  Investigations;  Litigation. No
investigation or review by any  governmental  entity with respect to the Company
or any of the transactions  contemplated by this Agreement is pending or, to the
knowledge of the Company or either of the Shareholders,  threatened, nor has any
governmental  entity  indicated to the Company or either of the  Shareholders an
intention  to  conduct  the same,  and there is no  action,  suit or  proceeding
pending or, to the knowledge of either of the Shareholders,  threatened  against
or  affecting  the Company at law or in equity,  or before any  federal,  state,
municipal or other governmental department, commission, board, bureau, agency or
instrumentality, that either individually or in the aggregate, does or is likely
to result in any material adverse change in the financial condition,  properties
or business of the Company.

     2.1.21.  Absence of Certain  Business  Practices2.1.21.  Absence of Certain
Business  Practices.  Neither the Company nor any officer,  employee or agent of
the  Company,  nor any other  person  acting on its  behalf,  has,  directly  or
indirectly,  within  the past  five  years,  given or agreed to give any gift or
similar benefit to any customer,  supplier,  government employee or other person
who is or may be in a position to help or hinder the business of the Company (or
to assist the Company in  connection  with any actual or  proposed  transaction)
which  (i) might  subject  the  Company  to any  damage or penalty in any civil,
criminal or  governmental  litigation  or  proceeding,  (ii) if not given in the
past,  might have had a  material  adverse  effect on the  assets,  business  or
operations of the Company as reflected in the Financial Statements,  or (iii  if
not  continued  in the future,  might  materially  adversely  effect the assets,
business  operations  or  prospects  of the Company or which  might  subject the
Company  to  suit  or  penalty  in  a  private  or  governmental  litigation  or
proceeding.

     2.1.22. No Untrue Statements.No Untrue Statements.  The Company and each of
the Shareholders have made available to Buyer true,  complete and correct copies
of  all  contracts,  documents  concerning  all  litigation  and  administrative
proceedings,  licenses,  permits,  insurance  policies,  lists of suppliers  and
customers,  and  records  relating  principally  to  the  Company=s  assets  and
business,  and such  information  covers all  commitments and liabilities of the
Company  relating  to its  business  or  the  assets.  This  Agreement  and  the
agreements  and  instruments  to be entered into in  connection  herewith do not
include any untrue  statement  of a material  fact or omit to state any material
fact necessary to make the statements  made herein and therein not misleading in
any material respect.

     2.1.23. Consents and Approvals.Consents and Approvals. No consent, approval
or  authorization  of, or filing  or  registration  with,  any  governmental  or
regulatory authority, or any other person or entity other than the Shareholders,
is required to be made or obtained by the Company or either of the  Shareholders
in connection  with the execution,  delivery or performance of this Agreement or
the consummation of the transactions contemplated hereby.

     2.1.24. Finder=s Fee2.1.24. Finder=s Fee. All negotiations relative to this
Agreement and the transactions  contemplated  hereby have been carried on by the
Shareholders and their counsel directly with Buyer and its counsel,  without the
intervention  of any other  person  in such  manner as to give rise to any valid
claim against any of the parties hereto for a brokerage commission, finder=s fee
or any similar payments.

     2.2.  Representations  and  Warranties  of  Buyer2.2.  Representations  and
Warranties of Buyer.  Buyer  represents and warrants to each of the Shareholders
as follows

     2.2.1. Organization and Good Standing.Organization and Good Standing. Buyer
is a corporation duly organized, validly existing and in good standing under the
laws of the State of Delaware,  has full requisite corporate power and authority
to carry on its  business as it is currently  conducted,  and to own and operate
the  properties  currently  owned and  operated by it, and is duly  qualified or
licensed  to do  business  and is in  good  standing  as a  foreign  corporation
authorized  to do business in all  jurisdictions  in which the  character of the
properties  owned or the nature of the business  conducted by it would make such
qualification or licensing necessary.

     2.2.2.  Agreement Authorized and its Effect on Other  Obligations.Agreement
Authorized  and  its  Effect  on  Other  Obligations.  The  consummation  of the
transactions  contemplated  hereby have been duly and validly  authorized by all
necessary  corporate  action on the part of Buyer, and this Agreement is a valid
and binding  obligation of Buyer  enforceable in accordance with its terms.  The
execution, delivery and performance of this Agreement by Buyer will not conflict
with or  result  in a  violation  or  breach  of any term or  provision  of,  or
constitute a default under (a) the  Certificate  of  Incorporation  or Bylaws of
Buyer or (b) any obligation, indenture, mortgage, deed of trust, lease, contract
or other agreement to which Buyer or any of its property is bound.

     2.2.3. Consents and Approvals.Consents and Approvals. No consent,  approval
or  authorization  of, or filing of a  registration  with, any  governmental  or
regulatory  authority,  or any other  person or entity is required to be made or
obtained by Buyer in connection  with the execution,  delivery or performance of
this Agreement or the consummation of the transactions contemplated hereby.

     2.2.4.   Finder=s  FeeFinder=s  Fee.  All  negotiations  relative  to  this
Agreement and the transactions  contemplated  hereby have been carried on by the
Buyer  and their  counsel  directly  with the  Shareholders  and their  counsel,
without the  intervention  of any other person in such manner as to give rise to
any valid claim  against any of the parties  hereto for a brokerage  commission,
finder=s fee or any similar payments.

                                    ARTICLE 3

                              Additional Agreements

ARTICLE 3         Additional Agreements

     3.1.  NoncompetitionNoncompetition.  Except as  otherwise  consented  to or
approved in writing by Buyer, each of the Shareholders  agrees that for a period
of 60 months  from the date  hereof,  such  Shareholder  will not,  directly  or
indirectly,  acting  alone or as a member  of a  partnership  or as an  officer,
director,  employee,  consultant,  representative,  holder of, or investor in as
much as 5% of any  security of any class of any  corporation  or other  business
entity  (i) engage  in  competition  with the well  service  rig and  associated
equipment business conducted by the Company,  Buyer or any affiliate of Buyer on
the date  hereof in the states of  Wyoming,  Montana,  South  Dakota,  Colorado,
Nebraska  and Utah;  (ii) request  any present  customers  or  suppliers  of the
Company to curtail  or cancel  their  business  with Buyer or any  affiliate  of
Buyer; (iii) disclose to any person, firm or corporation any trade, technical or
technological  secrets of the  Company,  Buyer or any  affiliate of Buyer or any
details of their  organization or business  affairs;  or (iv) induce or actively
attempt to  influence  any employee of the  Company,  Buyer or any  affiliate of
Buyer to  terminate  his  employment.  Each of the  Shareholders  agrees that if
either the length of time or geographical  area set forth in this Section 3.1 is
deemed  too  restrictive  in any court  proceeding,  the court may  reduce  such
restrictions to those which it deems  reasonable  under the  circumstances.  The
obligations  expressed  in  this  Section 3.1  are  in  addition  to  any  other
obligations that the Shareholders may have under the laws of the states in which
they do business  requiring an employee of a business or a shareholder who sells
his stock in a corporation  (including a  disposition  in a merger) to limit his
activities  so that the goodwill  and business  relations of his employer and of
the corporation whose stock he has sold (and any successor corporation) will not
be materially impaired. Each of the Shareholders further agrees and acknowledges
that the Company,  Buyer and its  affiliates do not have any adequate  remedy at
law for the breach or threatened  breach by such  Shareholder  of this covenant,
and agree that the Company,  Buyer or any affiliate of Buyer may, in addition to
the other remedies which may be available to it hereunder, file a suit in equity
to enjoin  such  Shareholder  from  such  breach or  threatened  breach.  If any
provisions of this  Section 3.1 are held to be invalid or against public policy,
the remaining provisions shall not be affected thereby. Each of the Shareholders
acknowledges that the covenants set forth in this Section 3.1 are being executed
and delivered by such  Shareholder  in  consideration  of the covenants of Buyer
contained  in this  Agreement,  and for other good and  valuable  consideration,
receipt of which is hereby acknowledged.

     3.2. Further Assurances.Further  Assurances. From time to time, as and when
requested by any party hereto, any other party hereto shall execute and deliver,
or cause to be executed and delivered,  such documents and instruments and shall
take,  or cause to be taken,  such further or other actions as may be reasonably
necessary to effectuate the transactions contemplated hereby.

     3.3. Public Announcements.Public  Announcements. Except as mutually agreed,
neither Buyer, the Shareholders nor any of their respective Affiliates or agents
shall issue any press release or public announcement  regarding the execution of
this Agreement or the transactions contemplated thereby. The Shareholders hereby
consent to Buyer=s issuance of a press release  announcing the completion of the
transactions contemplated by this Agreement.

     3.4. 338(h)(10)  Election.338(h)(10)  Election. If the Buyer elects to file
an election to treat the  acquisition of the Company Shares as an asset purchase
under  Section  338(h)(10)  of the Internal  Revenue  Code of 1986,  as amended,
Shareholders  agree to execute and deliver to Buyer any documents required to be
executed  by  Shareholders  in  connection  with such  election,  and Buyer will
compensate  and  indemnify  the  Shareholders  for any  increased  tax liability
resulting   therefrom.   In  addition,   Buyer  will   indemnify  and  reimburse
Shareholders  for  any  additional  tax  that  may  be  deemed  to  be  paid  by
Shareholders on income created by Buyer compensating Shareholders for taxes paid
on a Section 338(h)(10) election increase in asset values.

     3.5. Waste Disposal.Waste  Disposal. At Casper, Riverton and Douglas, there
are unidentified  drums and containers as specified in the Phase I Environmental
Site   Assessment   Report  dated  September  15,  1997  prepared  by  Carpenter
Environmental  Services,  L.L.C. (the APhase I Report@). The Phase I Report also
documents  unknown material on a flatbed trailer at Casper in Photograph  Number
4. Seller agrees to identify material  contained in all such unidentified  drums
and  containers  and the  material on the  flatbed  trailer at Casper and advise
Buyer of the identity of such  material  within 14 days of the  Closing.  Seller
further agrees, at Buyer=s request, to properly  characterize and dispose of all
materials  specified  by Buyer and all empty  containers  within 30 days of such
request.


                                    ARTICLE 4

                                 Indemnification

ARTICLE 4         Indemnification

     4.1.  Indemnification  by  the  Shareholders4.1.   Indemnification  by  the
Shareholders.  In addition to any other  remedies  available to Buyer under this
Agreement,  or at law or in equity,  each of the Shareholders  shall jointly and
severally  indemnify,  defend and hold  harmless  the  Company,  Buyer and their
affiliates  and their  respective  officers,  directors,  employees,  agents and
stockholders (collectively,  the ABuyer Indemnified Parties@),  against and with
respect to any and all claims, costs, damages,  losses,  expenses,  obligations,
liabilities,  recoveries,  suits,  causes of action and deficiencies,  including
interest,  penalties and reasonable fees and expenses of attorneys,  consultants
and experts  (collectively,  the ADamages@) that the Buyer  Indemnified  Parties
shall  incur or  suffer,  which  arise,  result  from or relate to any breach by
either of the  Shareholders of (or the failure of either of the  Shareholders to
perform) their respective representations,  warranties,  covenants or agreements
in this Agreement or in any schedule,  certificate,  exhibit or other instrument
furnished  or  delivered  to Buyer by  either  of the  Shareholders  under  this
Agreement.

     4.2. Indemnification by Buyer4.2.  Indemnification by Buyer. In addition to
any other remedies available to the Shareholders under this Agreement, or at law
or in  equity,  Buyer  shall  indemnify,  defend and hold  harmless  each of the
Shareholders  against  and  with  respect  to any  and  all  Damages  that  such
indemnitees  shall incur or suffer,  which  arise,  result from or relate to any
breach  of,  or  failure  by  Buyer  to  perform,  any of  its  representations,
warranties,  covenants  or  agreements  in this  Agreement  or in any  schedule,
certificate, exhibit or other instrument furnished or delivered to either of the
Shareholders by or on behalf of Buyer under this Agreement.

     4.3. Indemnification Procedure4.3.  Indemnification Procedure. In the event
that any party hereto discovers or otherwise becomes aware of an indemnification
claim arising under this Article ?,  such  indemnified  party shall give written
notice to the  indemnifying  party,  specifying  such claim,  and may thereafter
exercise any remedies  available to such party under this  Agreement;  provided,
however,  that the failure of any  indemnified  party to give notice as provided
herein shall not relieve the indemnifying party of any obligations hereunder, to
the extent the indemnifying party is not materially prejudiced thereby. Further,
promptly  after receipt by an indemnified  party  hereunder of written notice of
the  commencement  of any action or proceeding with respect to which a claim for
indemnification  may be made pursuant to this Article ?,  such indemnified party
shall,  if a claim in respect  thereof is to be made  against  any  indemnifying
party,  give written  notice to the latter of the  commencement  of such action;
provided,  however,  that the failure of any indemnified party to give notice as
provided  herein  shall not relieve the  indemnifying  party of any  obligations
hereunder,  to the extent the  indemnifying  party is not materially  prejudiced
thereby.  In case any such action is brought against an indemnified  party,  the
indemnifying party shall be entitled to participate in and to assume the defense
thereof,  jointly with any other indemnifying party similarly  notified,  to the
extent  that  it  may  wish,  with  counsel  reasonably   satisfactory  to  such
indemnified  party,  and after such notice from the  indemnifying  party to such
indemnified  party  of its  election  so to  assume  the  defense  thereof,  the
indemnifying  party shall not be liable to such indemnified  party for any legal
or other  expenses  subsequently  incurred by the latter in connection  with the
defense thereof unless the  indemnifying  party has failed to assume the defense
of such claim and to employ counsel reasonably  satisfactory to such indemnified
person.  An  indemnifying  party who elects not to assume the defense of a claim
shall not be liable for the fees and  expenses  of more than one  counsel in any
single  jurisdiction for all parties indemnified by such indemnifying party with
respect to such claim or with respect to claims  separate but similar or related
in  the  same  jurisdiction   arising  out  of  the  same  general  allegations.
Notwithstanding any of the foregoing to the contrary, the indemnified party will
be  entitled  to select its own  counsel  and  assume the  defense of any action
brought against it if the indemnifying  party fails to select counsel reasonably
satisfactory to the indemnified  party,  the expenses of such defense to be paid
by the indemnifying  party. No indemnifying  party shall consent to entry of any
judgment  or enter  into any  settlement  with  respect to a claim  without  the
consent  of the  indemnified  party,  which  consent  shall not be  unreasonably
withheld,  or unless such  judgment or settlement  includes as an  unconditional
term thereof the giving by the claimant or plaintiff to such  indemnified  party
of a release from all liability with respect to such claim. No indemnified party
shall consent to entry of any judgment or enter into any  settlement of any such
action, the defense of which has been assumed by an indemnifying party,  without
the consent of such indemnifying  party, which consent shall not be unreasonably
withheld or delayed.

                                    ARTICLE 5

                                  Miscellaneous

ARTICLE 5         Miscellaneous

     5.1. Survival of Representations,  Warranties and Covenants5.1. Survival of
Representations,  Warranties and  Covenants.  All  representations,  warranties,
covenants and agreements  made by the parties hereto shall survive  indefinitely
without  limitation,  notwithstanding  any investigation made by or on behalf of
any of  the  parties  hereto.  All  statements  contained  in  any  certificate,
schedule, exhibit or other instrument delivered pursuant to this Agreement shall
be deemed to have been representations and warranties by the respective party or
parties,  as the case may be, and shall also  survive  indefinitely  despite any
investigation made by any party hereto or on its behalf.

     5.2.  Entirety5.2.  Entirety.  This Agreement embodies the entire agreement
among the parties  with  respect to the  subject  matter  hereof,  and all prior
agreements  between the parties with respect  thereto are hereby  superseded  in
their entirety.

     5.3.   Counterparts.Counterparts.   Any  number  of  counterparts  of  this
Agreement  may be executed  and each such  counterpart  shall be deemed to be an
original instrument, but all such counterparts together shall constitute but one
instrument.

     5.4. Notices and  Waivers.Notices  and Waivers.  Any notice or waiver to be
given to any party hereto shall be in writing and shall be delivered by courier,
sent by facsimile  transmission  or first class  registered  or certified  mail,
postage          prepaid,           return          receipt           requested:
- ------------------------------------------------------------------------------

                                                    If to Buyer:
- -------------------------------------------------------------------------------
- ------------------------------- -----------------------------------------------

           Addressed to:                                    With a copy to:
- --------------------------- -----------------------------------------------
- ------------------------------ -----------------------------------------------

 Key Rocky Mountain, Inc.                         Porter & Hedges, L.L.P.
 Two Tower Center, Tenth Floor                    700 Louisiana, 35th Floor
 East Brunswick, New Jersey 08816                 Houston, Texas 77210-4744
 Attn: General Counsel                            Attn: Samuel N. Allen
 Facsimile:  (908) 247-5148                       Facsimile:  (713) 228-1331
- ------------------------------ -----------------------------------------------
- ------------------------------------------------------------------------------


- ------------------------------------------------------------------------------
- ------------------------------------------------------------------------------


- ------------------------------------------------------------------------------
- ------------------------------------------------------------------------------

                             If to Bruce L. Bummer or the Family Trust:
- ------------------------------------------------------------------------------
- ------------------------------ -----------------------------------------------

Addressed to:                                    With a copy to:
- ------------------------------ -----------------------------------------------
- ------------------------------ -----------------------------------------------

Bruce L. Bummer                                  Jeffrey C. Gosman
150 Riverbend Road                               123 West 1st Street
Casper, Wyoming  82604                           Casper, Wyoming  82601
                                                 Facsimile: (307) 472-4010
- ------------------------------ -----------------------------------------------
- ------------------------------------------------------------------------------

                                       If to Jack Hartnett or Diane Hartnett:
- -----------------------------------------------------------------------------
- ----------------------------- -----------------------------------------------

Addressed to:                                    With a copy to:
- ------------------------------ -----------------------------------------------
- ------------------------------ -----------------------------------------------

Jack Hartnett                                    Jeffrey C. Gosman
6220 S. Walnut                                   123 West 1st Street
Casper, Wyoming  82601                           Casper, Wyoming  82601
                                                 Facsimile: (307) 472-4010
- ------------------------------ -----------------------------------------------

     Any  communication  so addressed  and mailed by  first-class  registered or
certified mail, postage prepaid, with return receipt requested,  shall be deemed
to be received on the third  business  day after so mailed,  and if delivered by
courier or facsimile to such address, upon delivery during normal business hours
on any business day.

     5.5.  Table of Contents and  Captions.Table  of Contents and Captions.  The
table of  contents  and  captions  contained  in this  Agreement  are solely for
convenient  reference  and  shall  not  be  deemed  to  affect  the  meaning  or
interpretation of any article, section, or paragraph hereof.

     5.6. Successors and Assigns.Successors and Assigns. This Agreement shall be
binding  upon  and  shall  inure to the  benefit  of and be  enforceable  by the
successors and assigns of the parties hereto.

     5.7.  Severability.Severability.   If  any  term,  provision,  covenant  or
restriction of this Agreement is held by a court of competent jurisdiction to be
invalid,  void,  or  unenforceable,  the  remainder  of the  terms,  provisions,
covenants and restrictions shall remain in full force and effect and shall in no
way be affected,  impaired or invalidated.  It is hereby stipulated and declared
to be the  intention of the parties that they would have  executed the remaining
terms,  provisions,  covenants and  restrictions  without  including any of such
which may be hereafter declared invalid, void or unenforceable.

     5.8. Applicable Law.Applicable Law. This Agreement shall be governed by and
construed and enforced in accordance  with the  applicable  laws of the State of
Wyoming.


                                              [SIGNATURE PAGE FOLLOWS]

     IN WITNESS WHEREOF,  the Shareholders  have executed this Agreement and the
Buyer has caused this  Agreement to be signed in its corporate  name by its duly
authorized representative, all as of the day and year first above written.

     BUYER:

                                                     KEY ROCKY MOUNTAIN, INC.


                        By:                                                  
                                           Kenneth V. Huseman, Vice President


                                                              SHAREHOLDERS:


                                                                             
                                            Bruce Bummer, 7/14/82 Family Trust
                                            Bruce Bummer, Trustee


                                                                              
                                                              Jack Hartnett


                                                                              
                                                              Diane Hartnett


                                                                              
                                                              Bruce L. Bummer