Stock Purchase Agreement

                                      among

                             Key Energy Group, Inc.,

                            Key Energy Drilling, Inc.

                                       and

                      Ronald M. Sitton and Frank R. Sitton

 







                          Dated as of December 12, 1997




                            Stock Purchase Agreement

This Stock Purchase  Agreement (this "Agreement") is entered into as of December
12,  1997 by and among Key Energy  Group,  Inc.,  a Maryland  corporation  (the
"Parent"), Key Energy Drilling, Inc., a Delaware corporation ("Key"), and Ronald
M. Sitton and Frank R. Sitton (collectively, the "Shareholders").

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

Whereas,  Sitton  Drilling Co.  ("Sitton") is a corporation  duly  organized and
validly  existing  under  the laws of the  State of  Texas,  with its  principal
executive  offices at 4904  Lakeridge  Drive,  P. O. Box 65148,  Lubbock,  Texas
79464-5148; and
 
Whereas,  the  Shareholders  own 1,000  shares (the  "Sitton  Shares") of common
stock,  par value $1.00 , of Sitton ("Sitton Common Stock"),  which  constitutes
all of the issued and outstanding shares of capital stock of Sitton; and

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

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


1.1. Purchase and Sale of Sitton Shares.  Subject to the terms and conditions of
this  Agreement,  at the  Closing  (as  defined  in  Section  1.2  hereof),  the
Shareholders  agree to sell and convey to Key,  effective  as of 12:01  A.M.  on
January 1, 1998 (the "Effective  Time"),  free and clear of all Encumbrances (as
defined in Section 2.1.8.1  hereof),  and Key agrees to purchase and accept from
the Shareholders, all of the Sitton Shares. Subject to the provisions of Section
1.5 hereof, in consideration of the sale of the Sitton Shares,  Key shall pay to
the  Shareholders,  at the  Closing,  a  total  of  $12,950,000  (less  (a)  the
Prepayment  Shortfall  (as defined in Section 1.5 hereof) and (b) $100,000  (the
"Retention")  which shall be retained  for the period  specified  in Section 1.6
hereof) by wire transfer of immediately available funds (which sum shall include
$100,000.00  payable to each  Shareholder for his covenants set forth in Section
6.1 hereof). In addition,  Key shall cause to be issued to the Shareholders,  in
accordance with Section 6.2 hereof,  100,000 shares (the "Key Energy Shares") of
common  stock par value,  $.10 per  share,  of the Parent  ("Key  Energy  Common
Stock").

1.2. Time and Place of Closing. The closing of the transactions  contemplated by
this  Agreement  (the  "Closing")  shall be at the offices of  Clifford,  Field,
Krier, Manning, Greak & Stone, P.C., 2112 Indiana, Lubbock, Texas 79410 at 10:00
a.m. on January 5, 1998 (the "Closing  Date"),  unless  another time or place is
agreed upon by the Shareholders, Key and the Parent .

1.3. Delivery of Sitton Certificates.  The Shareholders shall deliver to Key, on
the Closing Date, duly and validly issued  certificates  representing all of the
Sitton Shares, each of which certificates shall 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 Key (or its
designee).


1.4. Distribution of Current Assets and Assumption of Liabilities.  On and after
the Closing Date,  all Current  Assets of Sitton at the Effective  Time (defined
below) shall be the sole property of the  Shareholders  and,  subject to Section
1.6 hereof,  Sitton shall have no rights thereto. On and after the Closing Date,
the  Shareholders  shall be solely  responsible for the Liabilities of Sitton at
the Effective Time (defined below). On the Closing Date, the Shareholders  shall
deliver to Key an executed copy of an assignment and  assumption  agreement in a
form  reasonably  satisfactory  to Key (the  "Assignment/Assumption  Agreement")
effecting (i) the transfer and assignment of the Current Assets of Sitton at the
Effective Time to the Shareholders and (ii) the assumption of the Liabilities of
Sitton at the  Effective  Time by the  Shareholders  . As used herein,  the term
"Current  Assets of  Sitton at the  Effective  Time"  means (i) all of  Sitton's
accounts  receivable  and all other  rights of Sitton to  payment  for  services
rendered by Sitton  before the  Effective  Time ("Prior  Accounts  Receivable"),
including,  without limitation,  those accounts receivable described in Schedule
2.1.8.4  hereto;  (ii) all cash  accounts of Sitton and all petty cash of Sitton
kept on hand for use in the  business in existence at the  Effective  Time;  and
(iii) all right,  title and  interest of Sitton in and to all  prepaid  rentals,
other prepaid  expenses (other than the  prepayments  referred to in Section 1.5
hereof),  bonds, deposits and financial assurance requirements and other current
assets  relating  to any of the  assets  of the  business  in  existence  at the
Effective Time. As used herein, the term "Liabilities of Sitton at the Effective
Time" means any and all liabilities  and obligations of Sitton,  incurred in the
ordinary  course of business  but not yet due and payable or the amount of which
is not yet known and all notes or other  indebtedness  or  obligations of Sitton
which has not been satisfied in full as of the Closing Date,  including  without
limitation  (i) the  litigation  referred to in Schedule  2.1.16  hereto and any
other litigation  brought or threatened  against Sitton arising out of events or
circumstances  occurring or existing before the Effective Time; (ii) any and all
taxes  payable  by Sitton for any period  before  the  Effective  Time (iii) the
amounts due under all indebtedness  referred to in Schedule  2.1.8.14 hereto and
any and all other indebtedness of Sitton in existence at the Effective Time; and
(v) all  accounts  payable  and trade  payables  of Sitton in  existence  at the
Effective Time, including, without limitation, the accounts payable described in
Schedule 2.1.8.5 hereto (the "Prior  Payables").  Nothing in this Section 1.4 is
intended to limit the  representations  and warranties of or indemnifications by
the Shareholders contained herein or to expand the indemnification provisions of
7.1 or extend the period of time for which the  representations,  warranties and
covenants  of  the  parties  shall  survive  the  Closing  Date.  Key  shall  be
responsible for any and all liabilities and obligations  arising with respect to
the  ownership  and  operation of Sitton's  assets from and after the  Effective
Date,  except to the extent that such liabilities or obligations  arise out of a
breach  by  the  Shareholders  of  any  of  their  respective   representations,
warranties or covenants contained herein.

1.5. Required Payments.  Before the Effective Time, the Shareholders shall cause
Sitton to make prepayments  totaling at least $450,000 for the purchase of drill
bits to be delivered to Sitton after the Effective  Time.  The term  "Prepayment
Shortfall"  as used herein means the amount,  if any, by which such  prepayments
total less than $450,000.

1.6.  Retention  of  Receivables;  Payment of Payables;  Post-Closing  Adjusting
Payments. It is the intention and agreement of the parties that the Shareholders
will have full power and authority to collect the Prior Accounts Receivable from
and after the  Closing  Date,  and  Sitton  shall take no action  designated  to
interfere  with  the  collection  of  the  Prior  Accounts   Receivable  by  the
Shareholders.  However,  for a period of 90 days from the Closing  Date,  Sitton
shall have the right to deposit and use any  payments  received by Sitton or Key
(as  opposed  to  payments  received  by the  Shareholders)  on account of Prior
Accounts  Receivables  and the  right to pay any  Prior  Payables  and any other
unpaid  Liabilities of Sitton at the Effective  Time. At the end of such period,
Sitton shall deliver an accounting (the "Final  Accounting") of such payments to
the  Shareholders.  Key and the  Shareholders  shall  jointly  review  the Final
Accounting,  endeavor in good faith to resolve any  disagreements  regarding the
entries thereon and reach a final determination thereof within 120 days from the
Closing Date. If the parties are unable to reach a final determination  relative
to all  disagreements  regarding entries on the Final Accounting within such 120
day period they shall submit the unresolved issue or issues to a nationwide firm
of independent  certified public accountants selected by mutual agreement (or if
mutual  agreement  cannot be reached,  by lot), whose decision on the unresolved
issue or issues shall be binding on all parties hereto. The following  adjusting
payments shall be made:

(1)  If the total of all  proceeds  retained by Sitton  from the Prior  Accounts
     Receivable  plus the Retention  exceeds the total of all Prior Payables and
     other  Liabilities  of  Sitton at the  Effective  Time paid by Sitton , Key
     shall pay to the Shareholders the amount of such excess.

(2)  If the total of all  proceeds  retained by Sitton  from the Prior  Accounts
     Receivable  plus the Retention is less than the total of all Prior Payables
     and other  Liabilities of Sitton at the Effective Time paid by Sitton,  the
     Shareholders shall pay to Key the amount of such difference.


From and after the 90 day period referred to above, (i) all payments received by
Sitton on account of Prior Accounts  Receivables shall be promptly endorsed over
and delivered to the Shareholders in accordance with Section 8.4 hereof and (ii)
all unpaid  Liabilities  of Sitton at the Effective Time shall be subject to the
Shareholders' indemnification obligations in accordance with Section 7.1 hereof.


                                    ARTICLE 2

                         Representations and Warranties

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

2.1.1.  Organization  and  Standing.  Sitton is a  corporation  duly  organized,
validly  existing and in good standing under the laws of the State of Texas, 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.  Each of the
Shareholders  is a  resident  of Texas,  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  (subject to normal  equitable  principles) in accordance  with its
terms,  except as  enforceability  may be  limited  by  bankruptcy,  insolvency,
reorganization,  debtor relief or similar laws affecting the rights of creditors
generally.  The  execution,  delivery and  performance  of this Agreement by 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  Articles  of
Incorporation or Bylaws of Sitton or (ii) any obligation,  indenture,  mortgage,
deed of trust,  lease,  contract or other agreement to which Sitton or either of
the  Shareholders is a party or by which Sitton or either of the Shareholders or
their respective properties are bound.

2.1.3.  Capitalization.  The  authorized  capitalization  of Sitton  consists of
1,000,000 shares of Sitton Common Stock, of which, as of the date hereof,  1,000
shares were issued and  outstanding and held  beneficially  and of record by the
Shareholders.  On the date hereof, Sitton 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 Sitton Common Stock are validly issued,  fully paid and non-assessable
and are not subject to  preemptive  rights.  None of the  outstanding  shares of
Sitton Common Stock are 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 Sitton Shares.  Each Shareholder holds good and valid title
to  500  of  the  Sitton  Shares,  free  and  clear  of  all  Encumbrances.  The
Shareholders possess full authority and legal right to sell, transfer and assign
to Key the Sitton Shares,  free and clear of all Encumbrances.  Upon transfer to
Key by the  Shareholders  of the Sitton  Shares,  Key will own the Sitton Shares
free and  clear of all  Encumbrances.  There are no  claims  pending  or, to the
knowledge of either of the Shareholders, threatened, against Sitton or either of
the  Shareholders  that concern or affect title to either the Sitton Shares,  or
that seek to compel the issuance of capital stock or other securities of Sitton.

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

2.1.6.  Financial  Statements.  The  Shareholders  have delivered to Key and the
Parent copies of Sitton's unaudited balance sheet (the A9/30 Balance Sheet@) and
statement  of income,  as of and for the nine months  ended  September  30, 1997
(collectively,  the A9/30 Financial  Statements@),  copies of which are attached
hereto as Schedule 2.1.6. With the exception of the exclusion of footnotes,  the
9/30  Financial  Statements  are complete in all  respects.  The 9/30  Financial
Statements  present fairly the financial  condition of Sitton as of the date and
for the period  indicated and, except for the exclusion of footnotes,  have been
prepared in accordance with generally accepted accounting  principles applied on
a consistent  basis.  The  inventories  of Sitton  reflected in the 9/30 Balance
Sheet,  or which have  thereafter  been  acquired  by it,  consist of items of a
quality usable and salable in the normal course of Sitton's business.

2.1.7.  Liabilities.  Except as disclosed on Schedule 2.1.7 hereto,  Sitton 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 incurred in the ordinary course of
business  since the Balance Sheet Date that will not adversely  affect the value
and conduct of the business of Sitton.

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

  
2.1.8.1.  Real Estate. All real property and structures thereon owned, leased or
subject to a contract of purchase and sale, or lease commitment, by Sitton, with
a description of the nature and amount of any Encumbrances thereon,  except such
imperfections  of  title,  easements  and  Encumbrances,  if  any,  as  are  not
substantial in character,  amount,  or extent and do not and will not materially
detract  from the value,  or  interfere  with the present  use, of the  property
subject thereto or affected thereby, or otherwise materially impair the business
operations of Sitton. The term  "Encumbrances" (as used in this Agreement) means
all liens, security interests, pledges, mortgages, deed 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, except liens for current taxes not yet due and payable;

2.1.8.2.  Machinery and Equipment.  All vehicles, rigs, carriers, rig equipment,
machinery and transportation  equipment,  and all significant tools,  equipment,
furnishings and fixtures owned,  leased or subject to a contract of purchase and
sale, or lease commitment, by Sitton with a description of the nature and amount
of any  Encumbrances  thereon,  except (i)  Encumbrances  disclosed  on Schedule
2.1.8.2 hereto and (ii) such imperfections of title, easements and Encumbrances,
if any, as are not  substantial  in  character,  amount or extent and do not and
will not materially  detract from the value,  or interfere with the present use,
of the property  subject thereto or affected  thereby,  or otherwise  materially
impair the business operations of Sitton;

2.1.8.3.  Inventory.  All inventory  items or groups of inventory items owned by
Sitton,  excluding raw  materials  and work in process,  which raw materials and
work in process are valued on the 9/30 Balance  Sheet,  together with the amount
of any Encumbrances thereon;

2.1.8.4. Receivables. All accounts and notes receivable of Sitton as of December
9, 1997 (all of which  will be  assigned  to the  Shareholders  on or before the
Effective Time).

2.1.8.5.  Payables.  All accounts and notes  payable of Sitton as of December 9,
1997  (all of  which  will be paid or  otherwise  discharged  on or  before  the
Effective Time).

2.1.8.6.  Insurance.  All insurance  policies or bonds  currently  maintained by
Sitton,  including title insurance  policies,  including those covering Sitton's
properties, rigs, machinery,  equipment,  fixtures, employees and operations, as
well as a listing of any premiums,  audit adjustments or retroactive adjustments
due or pending on such policies or any predecessor policies;

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


2.1.8.8.   Employee  Compensation  Plans.  All  bonus,  incentive  compensation,
deferred  compensation,  profit-sharing,  retirement,  pension,  welfare,  group
insurance,  health insurance, death benefit, or other employee benefit or fringe
benefit plans,  arrangements or trust agreements of Sitton or any other employee
benefit  plan  maintained  or adopted  by Sitton  (collectively,  the  "Employee
Plans"), together with copies of the most recent reports or returns with respect
to each such Employee Plan, filed with any governmental  agency and all Internal
Revenue  Service   determination  letters  and  all  other  correspondence  from
governmental entities that would bring into question the continued qualification
or validity of any such Employee Plan;

2.1.8.9 Certain Salaries. The names and salary rates of all present employees of
Sitton,  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 the Agreement;

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

2.1.8.11.  Employee Agreements.  Sitton does not have any collective  bargaining
agreements  with any labor union or other  representative  of employees,  or any
written  or  oral   understandings,   employment  or  consulting  and  severance
agreements;

2.1.8.12.  Intellectual Property. Sitton does not own, lease or use any patents,
patent applications,  trademarks and service marks (including  registrations and
applications    therefor),    copyrights   and   other   intellectual   property
(collectively, "Intellectual Property") ;

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

2.1.8.14.  Promissory  Notes.  All long-term and  short-term  promissory  notes,
installment  contracts,  loan  agreements,  credit  agreements,  and  any  other
agreements  of Sitton  relating  thereto  and a  description  of the  collateral
securing  the same (all of which shall be paid or  otherwise  discharged  by the
Shareholders or Sitton on or before the Effective Time);

2.1.8.15.  Guaranties. There are no indebtednesses,  liabilities and commitments
of  others as to which  Sitton is a  guarantor,  endorser,  co-maker,  surety or
accommodation maker, or that Sitton is contingently liable for or any letters of
credit,  whether  stand-by  or  documentary,  issued by any third  party for the
benefit of Sitton;


2.1.8.16.  Reserves and Accruals. Sitton has no accounting reserves or accruals;
and

2.1.8.17.  Environmental. All environmental permits, approvals,  certifications,
licenses,  registrations,  orders and decrees  applicable to current  operations
conducted by Sitton and all environmental  audits,  assessments,  investigations
and reviews  conducted by Sitton within the last five years (or otherwise within
the possession of Sitton) on any property owned or used by it.

2.1.9.  No  Defaults.  Sitton is not in default in any  material  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  Events.  Except  as  disclosed  on
Schedule 2.1.10 hereto, since the Balance Sheet Date, there has not been (and as
of the Closing Date there will not be):

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

2.1.10.2.  Property Damage. Any damage,  destruction, or loss to the business or
properties of Sitton (whether or not covered by insurance);

2.1.10.3. Dividends. Any declaration,  setting aside, or payment of any dividend
or other  distribution  in respect of the Sitton Common Stock,  or any direct or
indirect  redemption,  purchase or any other  acquisition  by Sitton of any such
stock;

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

2.1.10.5.  Labor  Disputes.  Any labor or employment  dispute of whatever nature
involving Sitton; or

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


2.1.11.  Taxes. 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
Sitton and each of the Shareholders (with respect to their distributive share of
Sitton income) 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; Sitton has only done business in
Texas and New Mexico,  all taxes shown by such  returns to be payable  have been
paid other than those being  contested  in good faith by Sitton or either of the
Shareholders (to the extent of their  distributive  share of Sitton income).  No
waiver  of any  statute  of  limitations  executed  by  Sitton  or either of the
Shareholders (to the extent of their  distributive  share of Sitton income) with
respect  to any  income or other tax is in effect for any  period.  Neither  the
income tax  returns of Sitton nor either of the  Shareholders  (to the extent of
their  distributive  share of  Sitton  income)  has ever  been  examined  by the
Internal  Revenue  Service or the taxing  authorities of any other  jurisdiction
except for an audit of Sitton  conducted by the Internal Revenue Service in 19__
for the calendar year 1983 and there are no current or pending audits. There are
no tax liens on any  assets of  Sitton  or  either of the  Shareholders  (to the
extent of their  distributive  share of Sitton  income) except for taxes not yet
currently due. Sitton is not subject to any tax-sharing or allocation agreement.
Sitton is not, and never has been, a member of a  consolidated  group subject to
Treasury Regulation 1.1502-6 or any similar provision.  Sitton (i) made a valid,
effective and binding election  pursuant to Section 1362 of the Internal Revenue
Code of 1986, as amended (the "Code"),  effective  ______,  19__, (ii) has since
maintained  its status as an S Corporation  pursuant to Section 1361 of the Code
and (iii) has made and continuously  maintained elections similar to the federal
S election in each state or local  jurisdiction where Sitton does business or is
required to file a tax return to the extent such states or jurisdictions  permit
such  elections.  Sitton  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  Sitton by any  taxing  authority.  Sitton  (x) has not  adopted  or
utilized LIFO as a method of accounting for inventory,  and (y) has no other tax
item, election,  agreement or adjustment which will accelerate or trigger income
or deferred  deductions of Sitton as a result of termination of Sitton's  status
as an S Corporation.

2.1.12.  Intellectual Property. There is no Intellectual Property that is either
material to Sitton's  business or that is  necessary  for the  rendering  of any
services  rendered by Sitton or and the use or sale of any equipment or products
used  or  sold by it.  Sitton  has not  received  any  notice  of  infringement,
misappropriation,  or conflict with, the intellectual  property rights of others
in connection  with the use by it of the  Intellectual  Property or otherwise in
connection with the operation of its business.

 
2.1.13.  Title to and  Condition  of Assets.  Except as  reflected  on  Schedule
2.1.8.1 hereto,  Sitton has good,  indefeasible  and marketable title to all its
properties,  interests in properties and assets, real and personal, reflected in
the 9/30  Balance  Sheet or in  Schedule 2.1.8.1  hereto,  free and clear of any
Encumbrance of any nature whatsoever,  except (i)Encumbrances  reflected in the
9/30 Balance Sheet or in Schedule 2.1.8.1 hereto, and (ii)such imperfections of
title, easements and Encumbrances,  if any, as are not substantial in character,
amount, or extent and do not and will not materially  detract from the value, or
interfere  with the present  use, of the  property  subject  thereto or affected
thereby,  or otherwise  materially impair the business operations of Sitton. All
leases  pursuant  to which  Sitton  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 Sitton  and in  respect  to which  Sitton has not taken
adequate steps to prevent a default from  occurring.  The buildings and premises
of Sitton 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
Sitton (except for surplus  equipment located in Sitton's yard and not currently
being  used  by  Sitton)  are in good  operating  condition  and in a  state  of
reasonable maintenance and repair, ordinary wear and tear excepted, and are free
from any known defects except as may be repaired by routine maintenance and such
minor defects as to not  substantially  interfere with the continued use thereof
in  the  conduct  of  normal  operations.  To the  best  of  each  Shareholder's
knowledge,  all such assets conform to all applicable  laws governing their use.
No  notice  of any  violation  of any law,  statute,  ordinance,  or  regulation
relating  to any such  assets  has been  received  by  Sitton  or  either of the
Shareholders, except such as have been fully complied with.

2.1.14.  Contracts. All contracts,  leases, plans or other arrangements to which
Sitton 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
Sitton and the other  parties  thereto.  Sitton is not, and to the  knowledge of
either 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 Sitton.
Neither of the Shareholders has received any information  which would cause such
Shareholder to conclude that any customer of Sitton will (or is likely to) cease
doing business with Sitton (or its  successors) as a result of the  consummation
of the transactions contemplated hereby.

2.1.15.  Licenses and Permits.  Sitton  possesses  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 "Permits") necessary under law or otherwise for
Sitton 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 (collectively, the "Sitton Permits").
Each of the Sitton Permits and Sitton's rights with respect thereto is valid and
subsisting,  in full force and  effect,  and  enforceable  by Sitton  subject to
administrative  powers of regulatory agencies having jurisdiction.  Sitton is in
compliance  in all  material  respects  with  the  terms  of each of the  Sitton
Permits.  No  Sitton  Permit  has  been,  or to the  knowledge  of either of the
Shareholders, is threatened to be, revoked, canceled, suspended or modified.

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

2.1.17. Environmental Compliance.

2.1.17.1.  Environmental  Conditions.  There are no environmental  conditions or
circumstances,  including,  without  limitation,  the presence or release of any
Substance of Environmental Concern (defined below), on any property presently or
previously  owned,  leased or  operated by Sitton,  or on any  property to which
Substances of Environmental Concern or waste generated by Sitton's operations or
use of its assets was  disposed  of,  which would have an adverse  effect on the
business or business  prospects of Sitton.  The term "Substance of Environmental
Concern"  means any  gasoline,  petroleum  (including  crude oil or any fraction
thereof),  petroleum  product,   polychlorinated  biphenyls,   urea-formaldehyde
insulation, asbestos, pollutant, contaminant, radiation, and any other substance
of any kind,  whether or not any such substance is defined as toxic or hazardous
under any  Environmental Law (defined below),  that is regulated  pursuant to or
could give rise to liability under any Environmental Law;

2.1.17.2.  Permits,  etc.  Sitton has,  and within the period of all  applicable
statutes  of  limitations  has had in full force and  effect  all  environmental
permits,  licenses,  approvals and other authorizations  required to conduct its
operations,  and  is  and  within  the  period  of  all  applicable  statute  of
limitations has been operating in substantial compliance thereunder;

2.1.17.3.  Compliance.  The  operations of Sitton and the use of its assets are,
and within the period of all  applicable  statutes of  limitation  have been, in
compliance with all applicable Environmental Laws other than such non compliance
that in the  aggregate is not material to the business or  operations of Sitton.
"Environmental  Law"  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 environment or of human health, or employee
health and safety as is now in effect;

2.1.17.4.  Past Compliance.  None of the operations or assets of Sitton has ever
been conducted or used in such a manner as to constitute violation of any of the
Applicable Environmental Laws;


2.1.17.5.  Environmental  Claims.  No notice has been served on Sitton or any of
the Shareholders from any entity,  governmental  agency or individual  regarding
any existing, pending or threatened investigation,  inquiry,  enforcement action
or litigation or liability, including without limitation any claims for remedial
obligations, response costs or contribution, relating to any Environmental Law;

2.1.17.6. Enforcement. Neither Sitton nor to either Shareholder's knowledge, any
predecessor of Sitton,  nor any other party acting on behalf of Sitton,  (i) has
entered  into or  agreed  to any  consent  decree,  order,  settlement  or other
agreement, or (ii) 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;

2.1.17.7.  Liabilities.  Sitton 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;

2.1.17.8.  Renewals.  Neither of the Shareholders knows of any reason why Sitton
(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 in connection with any of Sitton's current operations; and

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

2.1.18.  Compliance with Other Laws. Sitton 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  Issues.  Sitton 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
("ERISA").  Sitton has not  engaged in any unfair  labor  practices  which could
reasonably be expected to result in a material  adverse effect on its operations
or assets.  Sitton does not have any dispute  with any of its existing or former
employees.  There  are no labor  disputes  or,  to the  knowledge  of any of the
Shareholders, any disputes threatened by current or former employees of Sitton.

2.1.20.   Investigations;   Litigation.   No  investigation  or  review  by  any
governmental   entity  with  respect  to  Sitton  or  any  of  the  transactions
contemplated  by this Agreement is pending or, to the knowledge of either of the
Shareholders, threatened, nor has any governmental entity indicated to Sitton an
intention to conduct the same.  Except as described on Schedule  2.1.16  hereto,
there is no action, suit or proceeding pending or, to the knowledge of either of
the Shareholders, threatened against or affecting Sitton 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 an  adverse  change in the
financial condition, properties or business of Sitton.

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

2.1.22 Consents and Approvals.  No consents,  approvals or authorizations of, or
filing or registration  with, any governmental or regulatory  authority,  or any
other person are required to be made or obtained by the  Shareholders  or Sitton
in connection with the consummation of the transactions contemplated hereby.

2.1.23 Broker or Financial  Advisors Fee.  Neither the  Shareholders  nor Sitton
have retained any broker, agent or finder or agreed to pay any financial broker,
agent or finder on account of this  Agreement  in such manner as to give rise to
any valid claim against Key or the Parent for a brokerage  commission,  finder's
fee or any similar payments.

2.2.  Investment  Representations of the Shareholders.  Each of the Shareholders
acknowledges, represents and agrees that:


2.2.1.  Shareholders  Investment Suitability and Related Matters. (i) The Parent
has made available to the Shareholders  the information and documents  described
in  Section  2.4.3  hereof  and the  Shareholders  have had  access to the other
reports filed with the  Commission  (as defined in Section 2.4.3  hereof),  (ii)
such  Shareholder  understands the risks associated with ownership of Key Energy
Common  Stock,  and (iii) such  Shareholder  is capable of bearing the financial
risks associated with such ownership;

2.2.2.  Key Energy  Shares Not  Registered.  The Key Energy Shares have not been
registered under the Securities Act of 1933, as amended (the "Securities  Act"),
or registered or qualified under any applicable state securities laws;

2.2.3.  Reliance on  Representations.  The Key Energy Shares are being issued to
such  Shareholder  in  reliance  upon  exemptions  from  such   registration  or
qualification  requirements,  and the availability of such exemptions depends in
part upon such Shareholder's bona fide investment intent with respect to the Key
Energy Shares;

2.2.4.  Investment  Intent.  Such  Shareholder's  acquisition  of the Key Energy
Shares is solely for his own account for investment, and such Shareholder is not
acquiring  the Key Energy  Shares for the account of any other  person or with a
view toward resale,  assignment,  fractionalization,  or  distribution  thereof,
except as permitted by applicable securities laws;

2.2.5.  Permitted  Resale.  Such  Shareholder  shall not  offer for sale,  sell,
transfer,  pledge,  hypothecate  or  otherwise  dispose of any of the Key Energy
Shares except in accordance with the registration requirements of the Securities
Act and applicable  state  securities  laws or upon delivery to the Parent of an
opinion of legal counsel reasonably satisfactory to the Parent that an exemption
from registration is available;

2.2.6.  Investor  Sophistication.   Such  Shareholder  has  such  knowledge  and
experience  in  financial  and  business  matters  that he or she is  capable of
evaluating the merits and risks of an investment in the Key Energy  Shares,  and
to make an informed investment decision with respect thereto;

2.2.7. Availability of Information.  Each Shareholder has had the opportunity to
ask questions of, and receive  answers from the Parent's  officers and directors
concerning such Shareholder's acquisition of the Key Energy Shares and to obtain
such other  information  concerning the Parent and the Key Energy Shares, to the
extent the Parent's  officers and directors  possessed the same or could acquire
it without  unreasonable effort or expense, as such Shareholder deemed necessary
in connection with making an informed investment decision; and

2.2.8.  Restrictive Legends. In addition to any other legends required by law or
the other  agreements  entered into in  connection  herewith,  each  certificate
evidencing  the Key Energy  Shares will bear a  conspicuous  restrictive  legend
substantially as follows:


THE SECURITIES  EVIDENCED  HEREBY HAVE NOT BEEN REGISTERED  UNDER THE SECURITIES
ACT OF 1933, AS AMENDED ("ACT"),  OR UNDER ANY APPLICABLE STATE SECURITIES LAWS,
AND THEY CANNOT BE OFFERED FOR SALE,  SOLD,  TRANSFERRED,  PLEDGED OR  OTHERWISE
HYPOTHECATED EXCEPT IN ACCORDANCE WITH THE REGISTRATION  REQUIREMENTS OF THE ACT
AND SUCH OTHER STATE LAWS OR UPON DELIVERY TO THIS  CORPORATION OF AN OPINION OF
LEGAL  COUNSEL   SATISFACTORY  TO  THE   CORPORATION   THAT  AN  EXEMPTION  FROM
REGISTRATION IS AVAILABLE.

2.3. General  Representations of Key. Key represents and warrants to each of the
Shareholders as follows:

2.3.1.  Organization  and Good Standing.  Key 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.

2.3.2.   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 Key,  and this
Agreement  is a valid and  binding  obligation  of Key  enforceable  (subject to
normal   equitable   principles)  in  accordance  with  its  terms,   except  as
enforceability may be limited by bankruptcy, insolvency,  reorganization, debtor
relief or  similar  laws  affecting  the  rights  of  creditors  generally.  The
execution,  delivery and  performance of this Agreement by Key will not conflict
with or  result  in a  violation  or  breach  of any term or  provision  of,  or
constitute a default under (i) the Certificate of Incorporation or Bylaws of Key
or (ii) any obligation,  indenture,  mortgage, deed of trust, lease, contract or
other agreement to which Key or any of its property is bound.

2.3.3. Broker or Financial Advisor's Fee. Key has not retained any broker, agent
or  finder or agreed to pay any  financial  agent or finder on  account  of this
Agreement  in such a manner  as to give  rise to any  valid  claim  against  the
Shareholders for any brokerage commission, finder's fee or any similar payments.

2.4. General Representations and Warranties of the Parent. The Parent represents
and warrants to the Shareholders as follows:

2.4.1.  Organization  and  Good  Standing.  The  Parent  is a  corporation  duly
organized,  validly existing and in good standing under the laws of the State of
Maryland,  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.

2.4.2.  Agreement Authorized and its Effect on Other Obligations.  The execution
and delivery of this Agreement have been authorized by all necessary  corporate,
shareholder  and other action on the part of the Parent,  and this  Agreement is
the valid and  binding  obligation  of the Parent and  enforceable  (subject  to
normal  equitable  principals)  against the Parent in accordance with its terms,
except  as   enforceability   may  be   limited   by   bankruptcy,   insolvency,
reorganization,  debtor relief or similar laws affecting the rights of creditors
generally.  The  execution,  delivery and  performance of this Agreement and the
consummation of the transactions  contemplated hereby, will not conflict with or
result in a violation  or breach of any term or provision  of, nor  constitute a
default under (i) the charter or bylaws (or other  organizational  documents) of
the Parent or (ii) any obligation,  indenture,  mortgage,  deed of trust, lease,
contract  or other  agreement  to which  the  Parent  is a party or by which the
Parent is bound.

2.4.3. Reports and Financial Statements.  The Parent has previously furnished to
the Shareholders  true and complete copies of the following  (collectively,  the
"Key SEC  Documents"):  (i) the Parent's annual report filed with the Securities
and  Exchange  Commission  (the  "Commission")  pursuant to the  Securities  and
Exchange Act of 1934, as amended (the "Exchange  Act"),  for the Parent's fiscal
year ended June 30, 1997;  (ii) the Parent's  quarterly  and other reports filed
with the Commission since June 30, 1997; (iii) all definitive proxy solicitation
materials  filed  with  the  Commission  since  June  30,  1997;  and  (iv)  any
registration  statements  (other than those relating to employee  benefit plans)
declared  effective  by the  Commission  since June 30, 1997.  The  consolidated
financial statements of the Parent and its consolidated subsidiaries included in
the Parent's most recent  annual  report on Form 10-K and most recent  quarterly
reports  on Form  10-Q were  prepared  in  accordance  with  generally  accepted
accounting  principles  applied on a consistent  basis (except as noted therein)
during the  periods  involved  and fairly  present  the  consolidated  financial
position of the Parent and its consolidated subsidiaries as of the dates thereof
and the  consolidated  results of their  operations  and  changes  in  financial
position for the periods then ended;  and the Key SEC  Documents did not contain
any  untrue  statement  of a  material  fact or omit to  state a  material  fact
required to be stated  therein or necessary to make the statements  therein,  in
the light of the circumstances  under which they were made, not misleading as of
the date of such  documents  or other such date  specified  therein.  The Parent
further  represents  that  there  has been no  material  adverse  change  in its
consolidated financial condition since September 30, 1997.

2.5. 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 Key or the  Parent in
connection with the execution,  delivery or performance of this Agreement or the
consummation  of the  transactions  contemplated  hereby,  other  than  what  is
required by the American  Stock Exchange for the listing of the Key Shares to be
issued hereunder.

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


                                    ARTICLE 3

                        OBLIGATIONS PENDING CLOSING DATE

3.1 Agreements of the Shareholders.  Except as expressly  contemplated elsewhere
in this Agreement,  the  Shareholders  agree that from the date hereof until the
Closing  Date,  the  Shareholders  will cause  Sitton to (and  unless  otherwise
indicated by the context, since September 30, 1997, Sitton has):

3.1.1 Maintenance of Present  Business.  Operate its business only in the usual,
regular and ordinary manner so as to maintain the goodwill it now enjoys and, to
the  extent  consistent  with such  operation,  use all  reasonable  efforts  to
preserve intact its present business  organization,  keep available the services
of its present  officers  and  employees  and preserve  its  relationships  with
customers,  suppliers, jobbers, distributors and others having business dealings
with it;

3.1.2. Maintenance of Properties.  At its expense,  maintain all of its property
and assets in customary  repair,  order and condition,  reasonable wear and tear
excepted;

3.1.3.  Maintenance  of Books and  Records.  Maintain  its books of account  and
records in the usual,  regular and ordinary manner, in accordance with generally
accepted accounting principles applied on a consistent basis;

3.1.4.  Compliance with Law. Duly comply in all material  respects with all laws
applicable to it and to the conduct of its business;

3.1.5. Inspection.  Permit Key, the Parent and their authorized representatives,
during normal business hours,  to inspect  Sitton's  records and to consult with
its officers, employees, attorneys and agents for the purpose of determining the
accuracy of the  representations  and warranties  herein made and the compliance
with covenants contained in this Agreement; and

3.1.6.  Notice of Material  Developments.  Promptly notify Key and the Parent in
writing  of any  material  adverse  change  in,  or any  changes  which,  in the
aggregate,  could  result in an adverse  change in, the  consolidated  financial
condition,  business  or  affairs of Sitton,  whether  or not  occurring  in the
ordinary course of business.

3.2. Additional Agreements of the Shareholders. Except as expressly contemplated
elsewhere in this Agreement, each of the Shareholders agree that since September
30, 1997 (the  "Balance  Sheet  Date")  Sitton has not, and from the date hereof
until the Closing Date, they will not cause or permit Sitton to:

3.2.1. Prohibition of Certain Employment Contracts.  Enter into any contracts of
employment  which  cannot  be  terminated  on notice of 30 days or less or which
provide for any  severance  payments or  benefits  covering a period  beyond the
earlier of the termination date or notice thereof.

3.2.2.  Prohibition of Loans.  Incur any borrowings  which will not be repaid in
full on or before the Closing Date;

3.2.3.  Prohibition of Certain Commitments.  Enter into commitments of a capital
expenditure  nature or incur  any  contingent  liabilities  which  would  exceed
$10,000 in the  aggregate  except (i) as may be  necessary  for  maintenance  of
existing  facilities,  machinery and equipment in good  operating  condition and
repair in the ordinary course of business,  or (ii) as is otherwise  approved in
writing by Key;

3.2.4.  Disposal of Assets.  Sell,  dispose  of, or  encumber,  any  property or
assets,  except (i) in the usual and ordinary course of business,  (ii) property
or  assets  which  individually  have a value  of less  than  $1,000;  (iii)  as
described on Schedule  2.1.10 hereto;  or (iii) as may be approved in writing by
Key;

3.2.5.  Maintenance  of Insurance.  Discontinue  its current level of insurance;
provided,  that if during the period from the date hereof to and  including  the
Closing  Date any of its  property or assets are damaged or destroyed by fire or
other casualty,  the obligations of Key, the Parent and the  Shareholders  under
this  Agreement  shall not be affected  thereby,  and upon the Closing  Date all
proceeds of  insurance  and claims of every kind arising as a result of any such
damage or destruction shall remain the property of Sitton.

3.2.6.  Acquisition Proposals.  Directly or indirectly (i) solicit,  initiate or
encourage  any  inquiry  or  Acquisition   Proposal  from  any  person  or  (ii)
participate in any  discussions  or  negotiations  regarding,  or furnish to any
person other than Key, the Parent or their  representatives any information with
respect to, or otherwise facilitate or encourage any Acquisition Proposal by any
other person.  As used herein  "Acquisition  Proposal"  means any proposal for a
merger,  consolidation or other business combination involving Sitton or for the
acquisition or purchase of any equity interest in, or a material  portion of the
assets of,  Sitton,  other than the  transactions  with Key,  the Parent and the
Shareholders  contemplated by this Agreement.  Sitton shall promptly communicate
to Key and the Parent the terms of any such written Acquisition  Proposals which
it may  receive or any  written  inquiries  made to it or any of its  directors,
officers, representatives or agents;

3.2.7.  No  Amendment  to  Articles  of  Incorporation.  Amend its  Articles  of
Incorporation  or merge or  consolidate  with or into any other  corporation  or
change in any  manner the rights of its  common  stock or the  character  of its
business;

3.2.8.  No Issuance,  Sale, or Purchase of  Securities.  Issue or sell, or issue
options or rights to subscribe  to, or enter into any contract or  commitment to
issue or sell (upon conversion or otherwise), any shares of Sitton Common Stock,
or subdivide or in any way  reclassify  any shares of Sitton  Common  Stock,  or
acquire, or agree to acquire, any shares of Sitton Common Stock; and

3.2.9. Prohibition on Dividends. Declare or pay any dividend on shares of Sitton
Common Stock or make any other  distribution  of assets to the holders  thereof,
except as described on Schedule 2.1.10 hereto.



                                    ARTICLE 4
                       Conditions Precedent to Obligations

4.1.  Conditions  Precedent to Obligations of  Shareholders.  The obligations of
Shareholders to consummate and effect the  transactions  contemplated  hereunder
shall be subject to the  satisfaction  of the  following  conditions,  or to the
waiver thereof by Shareholders before the Closing Date:

4.1.1.  Representations  and  Warranties  of Key  and  the  Parent  True  at the
Effective Time and the Closing Date. The  representations  and warranties of Key
and the Parent herein contained shall be, in all material  respects,  true as of
and at the  Effective  Time and the Closing  Date with the same effect as though
made at such dates, except as affected by transactions permitted or contemplated
by this Agreement;  Key and the Parent shall have performed and complied, in all
material respects, with all covenants required by this Agreement to be performed
or complied with by them before the Effective Time and the Closing Date; and Key
and the Parent shall have delivered to the Shareholders a certificate, dated the
Closing Date and signed by their president or vice president and their secretary
or assistant secretary, to such effect.

4.1.2. No Material  Litigation.  No suit,  action,  or other proceeding shall be
pending, or to the knowledge of Key or the Parent, threatened,  before any court
or  governmental  agency in which it will be, or it is,  sought to  restrain  or
prohibit or to obtain  damages or provide other relief in  connection  with this
Agreement or the consummation of the transactions  contemplated  hereby or which
might  result in a  material  adverse  change  in the value of the  consolidated
assets and business of Key or the Parent.

4.1.3 Opinion of Key Counsel.  The Shareholders  shall have received a favorable
opinion,  dated  as of the  Closing  Date,  from  Lynch,  Chappell  &  Alsup,  a
Professional Corporation,  counsel for Key and the Parent, in form and substance
satisfactory to the Shareholders, to the effect that (i) Key and the Parent have
been duly incorporated and are validly existing as corporations in good standing
under the laws of the States of Delaware and  Maryland,  respectively;  (ii) Key
and the Parent have fully  requisite  corporate  power and authority to carry on
their  business  as it is  currently  conducted  and  to  own  and  operate  the
properties  currently  used and operated by them,  and are duly  qualified to do
business and are in good standing as foreign corporations in the State of Texas;
(iii) all  corporate  proceedings  required to be taken by or on the part of Key
and  the  Parent  to  authorize  the   execution  of  this   Agreement  and  the
implementation of the transactions contemplated hereby have been taken; and (iv)
this Agreement has been duly executed and delivered by, and is the legal,  valid
and binding obligation of Key and the Parent and is enforceable  against Key and
the Parent 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 Key and the Parent
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.

4.2.  Conditions  Precedent to Obligations of Key and the Parent. The obligation
of Key and the Parent to  consummate  and effect the  transactions  contemplated
hereunder shall be subject to the satisfaction of the following  conditions,  or
to the waiver thereof by Key and the Parent before the Closing Date.

4.2.1. Representations and Warranties of Shareholders True at the Effective Time
and the Closing Date. The  representations  and  warranties of the  Shareholders
herein  contained  shall be,  in all  material  respects,  true as of and at the
Effective  Time and the Closing Date with the same effect as though made at such
dates,  except as affected by  transactions  permitted or  contemplated  by this
Agreement;  Sitton and the Shareholders shall have performed and complied in all
material respects, with all covenants required by this Agreement to be performed
or complied  with by them before the Effective  Time and the Closing  Date;  and
Sitton and the  Shareholders  each shall have  delivered to Key and the Parent a
certificate,  dated the Closing Date and signed by each of the  Shareholders and
by Sitton's president,  chief financial or accounting officer, and secretary, as
the case may be, to such effects.

4.2.2. No Litigation.  Except as described on Schedule  2.1.16 hereto,  no suit,
action or other proceeding shall be pending, or to the Shareholders=  knowledge,
threatened,  before any court or governmental  agency in which it will be, or it
is,  sought to  restrain or  prohibit  or to obtain  damages or other  relief in
connection  with  this  Agreement  or  the   consummation  of  the  transactions
contemplated  hereby or which might result in an adverse  change in the value of
the assets and business of Sitton.

4.2.3. Opinion of Shareholders'  Counsel. Key and the Parent shall have received
a favorable  opinion,  dated the Closing  Date,  from  Clifford,  Field,  Krier,
Manning, Greak & Stone, P.C., counsel to the Shareholders, in form and substance
satisfactory to Key and the Parent,  to the effect that (i) Sitton has been duly
incorporated and is validly existing as a corporation in good standing under the
laws of the State of Texas;  (ii) has full requite 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 licenses
to do business and is in good  standing as a foreign  corporation  in New Mexico
and in each  other  state in which the  nature  of the  business  requires  such
qualification; (iii) all outstanding shares of the Sitton Common Stock have been
validly issued and are fully paid and nonassessable; and (iv) 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 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 Sitton 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 Key and the Parent,  as to
matters other than federal or Texas law.

4.2.4.  Payment of Liabilities  and  Prepayments.  The  Shareholders  shall have
caused Sitton to (the "Pay-Off  Condition")  (i) pay or otherwise  discharge all
Liabilities  of Sitton at the  Effective  Time  other  than  those for which the
Shareholders  had not  received an invoice on or before  December 29, 1997 or of
which the  Shareholders  had not been  notified or otherwise  become aware on or
before December 29, 1997 or that had not been incurred on or before December 29,
1997 and (ii) make the prepayments  referred to in Section 1.5 hereof. Key shall
have received (x) an executed copy of the Assignment and Assumption Agreement in
a form reasonably  satisfactory to it; and (y) evidence reasonably  satisfactory
to it that the Pay-Off Condition had been met.

4.2.5.  Encumbrances Removed. Key shall receive evidence reasonably satisfactory
to it that Sitton owns all of its assets free and clear of all Encumbrances.



                                    ARTICLE 5

                           Termination and Abandonment

5.1.  Termination.   Anything  contained  in  this  Agreement  to  the  contrary
notwithstanding,  this  Agreement  may be  terminated  and the purchase and sale
contemplated hereby abandoned at any time before the Closing Date:

5.1.1.  By  Mutual  Consent.  By  mutual  consent  of Key,  the  Parent  and the
Shareholders.

5.1.2.  By Key and the  Parent  Because of  Failure  to  Perform  Agreements  or
Conditions Precedent.  By Key and the Parent, if the Shareholders have failed to
perform  any  material  agreement  set forth in  Sections  3.1 or 3.2, or if any
material  condition set forth in  Section 4.2  hereof has not been met, and such
condition has not been waived.

5.1.3.  By the  Shareholders  Because of Key or the Parent's  Failure to Perform
Agreements or Conditions  Precedent.  By the Shareholders,  if Key or the Parent
has failed to perform any material condition set forth in Section 4.1 hereof has
not been met, and such condition has not been waived.

5.1.4. By Key, the Parent or by the Shareholders  Because of Legal  Proceedings.
By either Key,  the Parent or the  Shareholders  if any suit,  action,  or other
proceeding  shall be pending or threatened by the federal or a state  government
before  any court or  governmental  agency,  in which it is sought to  restrain,
prohibit, or otherwise affect the consummation of the transactions  contemplated
hereby.

5.1.5. By Key or the Parent Because of a Material Adverse Change.  By Key or the
Parent if there has been a material adverse change in the financial condition or
business of Sitton since the Balance Sheet Date.

5.1.6.  By Key or by the  Shareholders  if No Closing by January  15,  1998.  By
either  Key or the  Shareholders,  if the  closing  of  the  purchase  and  sale
contemplated  hereby shall not have been  consummated  on or before  January 15,
1998  through  no  fault of any  party  hereto;  provided,  however,  that  this
Agreement  may  not  be  terminated  by any  party  hereto  if the  transactions
contemplated hereby have not occurred due to the breach of any provision of this
Agreement by the party desiring to terminate this Agreement.

5.2. Effect of  Termination.  In the event of the termination and abandonment of
this Agreement  pursuant to and in accordance with the provisions of Section 5.1
hereof,  this  Agreement  shall  become  void and have no  effect,  without  any
liability on the part of any party hereto (or its  stockholders  or  controlling
persons  or  directors  or  officers),  except  as  otherwise  provided  in this
Agreement;  provided,  however,  that a termination of this Agreement  shall 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 before such termination.

5.3.  Waiver of Conditions.  Subject to the  requirements of any applicable law,
any of the terms or  conditions  of this  Agreement may be waived at any time by
the party which is entitled to the benefit thereof.

5.4.  Expense  on  Termination.  If the  transactions  contemplated  hereby  are
abandoned  pursuant to and in  accordance  with the  provisions  of  Section 5.1
hereof, all expenses will be paid by the party incurring them.



                                    ARTICLE 6

                              Additional Agreements

6.1. Noncompetition.  Except as otherwise consented to or approved in writing by
Key and the  Parent,  each of the  Shareholders  agrees  that for a period of 60
months from the Closing Date, 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 business or businesses  conducted by Sitton,  Key, the
Parent or any  affiliate  of Key or the  Parent  on or  before  the date of this
Agreement  in Texas  or New  Mexico;  (ii)  request  any  present  customers  or
suppliers  of Sitton to curtail or cancel their  business  with Key, the Parent,
Sitton  or any of  their  affiliates;  (iii)  disclose  to any  person,  firm or
corporation any trade,  technical or technological  secrets of Sitton,  Key, the
Parent  or any of their  affiliates  or any  details  of their  organization  or
business affairs or (iv) induce or actively attempt to influence any employee of
Sitton,  Key, the Parent or any of their affiliates to terminate his employment.
Each  of  the  Shareholders  agrees  that  if  either  the  length  of  time  or
geographical area set forth in this Section 6.1 is deemed too restrictive in any
court proceeding, the court may reduce such restrictions to those which it deems
reasonable under the circumstances.  Each of the Shareholders further agrees and
acknowledges  that Key, the Parent and their affiliates do not have any adequate
remedy at law for the breach or threatened  breach by such  Shareholder  of this
covenant,  and agree that Key, the Parent or any  affiliate of Key or the Parent
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 6.1 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 6.1
are being  executed and delivered by such  Shareholder in  consideration  of the
covenants  of Key and the Parent  contained  in this  Agreement,  an agreed upon
allocation  of  $100,000  of the  purchase  price  being  paid  by  Key to  such
Shareholder  pursuant  to Section  1.1  hereof  and for other good and  valuable
consideration, receipt of which is hereby acknowledged.

6.2. Issuance of Key Shares. On the date hereof, the Parent shall file a listing
application  with the American Stock Exchange  requesting the listing of the Key
Energy  Shares.  On the date the  Parent  receives  notice of  approval  of such
request,  the Parent shall send written  instructions  to its transfer agent and
registrar   to  issue,   countersign   and  register  a  total  of  twenty  (20)
certificates,  each  representing  5,000 of the Key  Energy  Shares,  with  each
Shareholder  being named as the record holder of ten (10) of such  Certificates.
Such  certificates  shall  be  delivered  to the  Shareholders  at  the  address
specified in Section 9.4 hereof.

6.3. 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, including,  without limitation,
assistance from the Shareholders in auditing the financial statements of Sitton.

6.4.  Fees  and  Expenses.  Except  as  otherwise  expressly  provided  in  this
Agreement,  all fees and  expenses,  including  fees and  expenses  of  counsel,
financial  advisors and  accountants  incurred in connection with this Agreement
and the  transactions  contemplated  hereby shall be paid by the party incurring
such fee or expense by or on the date hereof.



                                    ARTICLE 7

                                 Indemnification

7.1. Indemnification by Shareholders. On the terms and conditions and subject to
the  limitations  provided  in this  Article 7, each of the  Shareholders  shall
indemnify,  defend and hold harmless Sitton,  Key, the Parent,  their affiliates
and subsidiaries and their respective officers, directors, employees, agents and
stockholders  (collectively,  the "Key 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 attorneys' fees (collectively,  the "Damages") that such
indemnitees shall incur or suffer, which arise, result from or relate to (i) any
breach  of, or  failure  by,  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 by Key
or the Parent to the  Shareholders  under  this  Agreement  to the  extent  such
Damages  exceed  $100,000 in the aggregate or (ii) the  Liabilities of Sitton at
the  Effective  Time;  provided,  however,  that the  Shareholders  shall not be
required to so indemnify,  defend and hold harmless the Key Indemnified  Parties
against  and with  respect to any  Damages  incurred  as a result of a breach by
either of the Shareholders of their respective representations and warranties in
this  Agreement or in any  schedule,  certificate,  exhibit or other  instrument
furnished or delivered to Key by either of the Shareholders under this Agreement
for which a Key Indemnified Party fails to provide written notice of a claim for
such Damages to the  Shareholders  on or before the  expiration  of the survival
period (as  specified in Section 8.1 hereof) of the specific  representation  or
warranty alleged to have been breached.

7.2.  Indemnification  by Key.  On the terms and  conditions  and subject to the
limitations  provided in this  Article 7, Key shall  indemnify,  defend and hold
harmless  each of the  Shareholders  against  and  with  respect  to any and all
Damages in excess of $100,000 in the aggregate that such indemnitees shall incur
or suffer,  which  arise,  result from or relate to any breach of, or failure by
Key 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 the  Shareholders  by or on behalf of Key under this
Agreement;  provided,  however,  that Key shall not be required to so indemnify,
defend  and hold  harmless  the  Shareholders  against  and with  respect to any
Damages  incurred  as a result of a breach by Key of any of its  representations
and  warranties in this  Agreement or in any schedule,  certificate,  exhibit or
other  instrument  furnished  or  delivered  to  Shareholders  by Key under this
Agreement for which the  Shareholders  fail to provide written notice of a claim
for such Damages to Key on or before the  expiration of the survival  period (as
specified  in Section 8.1  hereof) of the  specific  representation  or warranty
alleged to have been breached.


7.3.  Indemnification  Procedure.  If any party  hereto  discovers  or otherwise
becomes aware of an  indemnification  claim arising under Section 7.1 or Section
7.2 of this Agreement,  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 7, 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.  Any 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.


                                    ARTICLE 8

                                  Miscellaneous

8.1 Survival of Representations,  Warranties and Covenants. All representations,
warranties  and covenants  made by the parties  hereto shall survive until three
(3) years after the Closing Date,  notwithstanding any investigation made on the
part of the parties hereto;  provided,  however,  that the  representations  and
warranties  made in Section  2.1.11 hereof shall survive until the expiration of
the applicable statute of limitations associates with tax issues. All statements
contained in any certificate,  schedule,  exhibit or other instrument  delivered
pursuant  to this  Agreement  shall  be  deemed  to have  been  representations,
warranties and covenants by the respective party or parties, as the case may be,
and shall also survive  until three (3) years after the Closing Date despite any
investigation  made by any party  hereto or on its  behalf.  All  covenants  and
agreements contained herein shall survive as provided herein.

8.2.  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.

8.3. 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.

8.4.  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 Key or the Parent
- --------------------------------------------------------------------------------

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

Key Energy Group, Inc.                       Key Energy Drilling, Inc.
Two Tower Center, Tenth Floor                6 Desta Drive, Suite 5900
East Brunswick, New Jersey 08816             Midland, Texas 79705
Attn: General Counsel                        Attn: Kenneth V. Huseman
Facsimile:  (908) 247-5148                   Facsimile: (915) 620-0307

                                             and

                                             Lynch, Chappell & Alsup, P.C.
                                             300 N. Marienfeld, Suite 700
                                             Midland, Texas 79701
                                             Attn: James M. Alsup
                                             Facsimile: (915) 683-2587
            --------------------------------------------------------
            --------------------------------------------------------


- --------------------------------------------------------------------------------
                               If to a Shareholder

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

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

     Mr. Ronald M. Sitton              Clifford, Field, Krier, Manning, Greak &
     Mr. Frank R. Sitton                  Stone, P.C.
     4904 Lakeridge Drive              2112 Indiana
     P. O. Box 65148                   Lubbock, Texas 79410
     Lubbock Texas 79464-5158          Attn: Nevill Manning
                                       Facsimile: (806) 792-0810
     ---------------------------------------------------------------------------
     ---------------------------------------------------------------------------


     ---------------------------------------------------------------------------
 
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.

8.5.  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.

8.6. Binding Effect; Assignment; No Third Party Benefit. This Agreement shall be
binding upon and inure to the benefit of the parties hereto and their respective
successors and permitted assigns. Nothing in this Agreement, express or implied,
is intended to or shall  confer upon any person  other than Key,  the Parent and
the  Shareholders,  any rights,  benefits  or remedies of any nature  whatsoever
under or by reason of this Agreement.

8.7.  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.

8.8.  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.

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


                            [SIGNATURE PAGE FOLLOWS]



IN WITNESS WHEREOF,  the  Shareholders  have executed this Agreement and Key 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.


KEY ENERGY GROUP, INC.                  KEY ENERGY DRILLING, INC.



By:_____________________________        By:                                     
   Kenneth V. Huseman, Executive           Kenneth V. Huseman, Vice President
   Vice President


SHAREHOLDERS


____________________________________
Ronald M. Sitton


____________________________________
Frank R. Sitton




                                TABLE OF CONTENTS

ARTICLE 1Purchase and Sale.....................................................1
1.1.     Purchase and Sale of Sitton Share.....................................1
1.2.     Time and Place of Closing.............................................2
1.3.     Delivery of Sitton Certificates.......................................2
1.4.     Distribution of Current Assets and Assumption of Liabilities..........2
1.5.     Required Payments.....................................................3
1.6.     Retention  of  Receivables;  Payment of Payables;  
         Post-Closing  Adjusting  Payments.....................................3

ARTICLE 2         Representations and Warranties...............................4
2.1.     General Representations and Warranties of the Shareholders............4
2.1.1.   Organization and Standing.............................................4
2.1.2.   Agreement Authorized and its Effect on Other Obligations..............4
2.1.3.   Capitalization........................................................4
2.1.4.   Ownership of Sitton Shares............................................5
2.1.5.   No Subsidiaries.......................................................5
2.1.6.   Financial Statements..................................................5
2.1.7.   Liabilities...........................................................5
2.1.8.   Additional Sitton Information.........................................5
2.1.8.1. Real Estate...........................................................5
2.1.8.2. Machinery and Equipment...............................................6
2.1.8.3. Inventory.............................................................6
2.1.8.4. Receivables...........................................................6
2.1.8.5. Payables..............................................................6
2.1.8.6. Insurance.............................................................6
2.1.8.7. Leases; Contracts.....................................................6
2.1.8.8. Employee Compensation Plans...........................................6
2.1.8.9  Certain Salaries......................................................7
2.1.8.10.Bank Accounts.........................................................7
2.1.8.11.Employee Agreements...................................................7
2.1.8.12.Intellectual Property.................................................7
2.1.8.13.Trade Names...........................................................7
2.1.8.14.Promissory Notes......................................................7
2.1.8.15.Guaranties............................................................7
2.1.8.16.Reserves and Accruals.................................................8
2.1.8.17.Environmental.........................................................8
2.1.9.   No Defaults...........................................................8
2.1.10.  Absence of Certain Changes and Events.................................8
2.1.10.1.Financial Change......................................................8
2.1.10.2.Property Damage.......................................................8
2.1.10.3.Dividends.............................................................8
2.1.10.4.Capitalization Change.................................................8
2.1.10.5.Labor Disputes........................................................8
2.1.10.6.Other Adverse Changes.................................................8
2.1.11.  Taxes.................................................................8
2.1.12.  Intellectual Property.................................................9
2.1.13.  Title to and Condition of Assets......................................9
2.1.14.  Contracts............................................................10
2.1.15.  Licenses and Permits.................................................10
2.1.16.  Litigation...........................................................10
2.1.17.1.Environmental Conditions.............................................11
2.1.17.2.Permits, etc.........................................................11
2.1.17.3.Compliance...........................................................11
2.1.17.4. Past Compliance.....................................................11
2.1.17.5. Environmental Claims................................................12
2.1.17.6. Enforcement.........................................................12
2.1.17.7. Liabilities.........................................................12
2.1.17.8. Renewals............................................................12
2.1.17.9. Asbestos and PCBs...................................................12
2.1.18.   Compliance with Other Laws..........................................12
2.1.19.   No ERISA Plans or Labor Issues......................................12
2.1.20.   Investigations; Litigation..........................................13
2.1.21.   Absence of Certain Business Practices...............................13
2.1.22    Consents and Approvals..............................................13
2.1.23    Broker or Financial Advisors Fee....................................13
2.2.      Investment Representations of the Shareholders......................13
2.2.1.    Shareholders Investment Suitability and Related Matters.............13
2.2.2.    Key Energy Shares Not Registered....................................14
2.2.3.    Reliance on Representations.........................................14
2.2.4.    Investment Intent...................................................14
2.2.5.    Permitted Resale....................................................14
2.2.6.    Investor Sophistication.............................................14
2.2.7.    Availability of Information.........................................14
2.2.8.    Restrictive Legends.................................................14
2.3.      General Representations of Key......................................15
2.3.1.    Organization and Good Standing......................................15
2.3.2.    Agreement Authorized and its Effect on Other Obligations............15
2.3.3.    Broker or Financial Advisor's Fee...................................15
2.4.      General Representations and Warranties of the Parent................15
2.4.1.    Organization and Good Standing......................................15
2.4.2.    Agreement Authorized and its Effect on Other Obligations............16
2.4.3.    Reports and Financial Statements....................................16
2.5.      Consents and Approvals..............................................17
2.6.      Finder's Fee........................................................17

ARTICLE 3 OBLIGATIONS PENDING CLOSING DATE....................................17
3.1      Agreements of the Shareholders.......................................17
3.1.1    Maintenance of Present Business......................................17
3.1.2.   Maintenance of Properties............................................17
3.1.3.   Maintenance of Books and Records.....................................17
3.1.4.   Compliance with Law..................................................17
3.1.5.   Inspection...........................................................17
3.1.6.   Notice of Material Developments......................................18
3.2.     Additional Agreements of the Shareholders............................18
3.2.1.   Prohibition of Certain Employment Contracts..........................18
3.2.2.   Prohibition of Loans.................................................18
3.2.3.   Prohibition of Certain Commitments...................................18
3.2.4.   Disposal of Assets...................................................18
3.2.5.   Maintenance of Insurance.............................................18
3.2.6.   Acquisition Proposals................................................18
3.2.7.   No Amendment to Articles of Incorporation............................19
3.2.8.   No Issuance, Sale, or Purchase of Securities.........................19
3.2.9.   Prohibition on Dividends.............................................19

ARTICLE 4
Conditions Precedent to Obligations...........................................19
4.1.    Conditions Precedent to Obligations of Shareholders...................19
4.1.1.  Representations and Warranties of Key and the Parent True at the
          Effective Time   and   the Closing Date.............................19
4.1.2.  No Material Litigation................................................19
4.1.3   Opinion of Key Counsel................................................20
4.2.    Conditions Precedent to Obligations of Key and the Parent.............20
4.2.1.  Representations and Warranties of Shareholders True at the Effective
        Time and the Closing Date.............................................20
4.2.2.  No Litigation.........................................................21
4.2.3.  Opinion of Shareholders' Counsel......................................21
4.2.4.  Payment of Liabilities and Prepayments................................21
4.2.5.  Encumbrances Removed..................................................21

ARTICLE 5 Termination and Abandonment.........................................22

5.1.  Termination.............................................................22
5.1.1.   By Mutual Consent....................................................22
5.1.2.   By Key and the Parent Because of Failure to Perform Agreements or
         Conditions Precedent.................................................22
5.1.3.   By the Shareholders Because of Key or the Parent's Failure to Perform
         Agreements or Conditions Precedent...................................22
5.1.4.   By Key, the Parent or by the Shareholders 
         Because of Legal Proceedings.........................................22
5.1.5.   By Key or the Parent Because of a Material Adverse Change............22
5.1.6.   By Key or by the Shareholders if No Closing by January 15, 1998......22
5.2.     Effect of Termination................................................22
5.3.     Waiver of Conditions.................................................23
5.4.     Expense on Termination...............................................23

ARTICLE 6 Additional Agreements ..............................................23
6.1      Noncompetition.......................................................23
6.2      Issuance of Key Shares...............................................24
6.3.     Further Assurances...................................................24
6.4.     Fees and Expenses....................................................24

ARTICLE  7 Indemnification....................................................24
7.1      Indemnification by Shareholders......................................24
7.2      Indemnification by Key...............................................25
7.3      Indemnification Procedure............................................25

ARTICLE 8 Miscellaneous.......................................................26
8.1      Survival of Representations, Warranties and Covenants................26
8.2      Entirety.............................................................26
8.3      Counterparts.........................................................26
8.4      Notices and Waivers..................................................26
8.5      Table of Contents and Captions.......................................27
8.6.     Binding Effect; Assignment; No Third Party Benefit...................27
8.7.     Successors and Assigns...............................................28
8.8.     Severability.........................................................28
8.9.     Applicable Law.......................................................28