Stock Purchase Agreement

                                     between

                             WellTech Eastern, Inc.

                                       and

                                 Monty D. Elmore
 
 







                            Dated as of July 17, 1997





C:\WELLTECH\STOCKPUR\PATRICK
                                       13

                            Stock Purchase Agreement

     This Stock Purchase Agreement (this AAgreement@) is entered into as of July
17, 1997, by and among WellTech Eastern, Inc., a Delaware corporation (ABuyer@),
and Monty D. Elmore (the AShareholder@).

                                                     WITNESSETH:

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

     Whereas,  Patrick Well Service,  Inc. (the ACompany@) is a corporation duly
organized and validly  existing under the laws of the State of Kansas,  with its
principal executive offices at 2007 W. 7th Street, Liberal, Kansas; and
 
     Whereas,  the Shareholder  owns 82 shares (the ACompany  Shares@) of common
stock,  par value $10 per share,  of the Company (the ACompany  Common  Stock@),
which  constitutes all of the issued and outstanding  shares of capital stock of
the Company; and

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

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

                                    ARTICLE 1

                                Purchase and Sale

     1.1.  Purchase  and Sale of the  Company  Shares.  Subject to the terms and
conditions of this Agreement,  on the date hereof, the Shareholder agree to sell
and convey to Buyer,  free and clear of all  Encumbrances (as defined in Section
2.1.8.1  hereof),  and Buyer agrees to purchase and accept from the Shareholder,
all of the Company Shares.  In  consideration of the sale of the Company Shares,
Buyer  shall  pay to the  Shareholder  $7,000,000  in cash by wire  transfer  of
immediately  available  funds,  and the Cash  Adjustment  Payment (as defined in
Section 1.3 hereof), if any, in accordance with Section 1.3 hereof.

     1.2. Delivery of the Company Certificates. The Shareholder shall deliver to
Buyer on the date hereof duly and validly issued certificate(s) representing all
of the Company Shares,  each such certificate having been duly endorsed in blank
and in good form for transfer or  accompanied  by stock powers duly  executed in
blank, sufficient and in good form to properly transfer such shares to Buyer.
 
     1.3.  Adjustment of Purchase  Price.  Buyers shall cause to be prepared and
delivered to the  Shareholder a balance sheet of the Company in accordance  with
generally  accepted  accounting   principles  (except  for  use  of  accelerated
depreciation  method) as of the date hereof (the AFinal  Balance  Sheet@) within
sixty (60) days after the date hereof . Buyer and the Shareholder  shall jointly
review the Final Balance Sheet and such  supplemental  report,  endeavor in good
faith to resolve all  disagreements  regarding  the entries  thereon and reach a
final determination  thereof within 90 days from the date hereof. Within 10 days
of reaching such final determination,  the following adjusting payments shall be
made:

     (1) If the sum of (A)  Final  Net  Current  Value of the  Company  (defined
below) plus (B) (the ACapital  Expenditure  Allowance@),  which is the amount of
approved  capital  equipment  purchases  since  3/31 shown on  Schedule  2.1.3.,
exceeds the 3/31 Net Current  Value of the Company  (defined  below) Buyer shall
pay to  the  Shareholder  the  amount  of  such  excess  (the  ACash  Adjustment
Payment@).

     (2) If the sum of (A) the Final Net Current  Value of the Company  plus (B)
the Capital  Expenditure  Allowance,  is less than the 3/31 Net Current Value of
the Company, the Shareholder shall pay to Buyer the amount of such difference.

     The term AFinal Net Current Value of the Company@ means the dollar value of
the amount by which (i) the ATotal Current Assets@ plus the ATotal Other Assets@
as recorded on the Final Balance Sheet exceeds (ii) the ATotal  Liabilities@  as
recorded on the Final  Balance  Sheet.  The term A3/31 Net Current  Value of the
Company@  means the dollar  value of the amount by which (i) the ATotal  Current
Assets@ plus the ATotal Other  Assets@ as recorded on the 3/31 Balance Sheet (as
defined  in Section  2.1.6  hereof)  exceeds  (ii) the  ATotal  Liabilities@  as
recorded on the 3/31 Balance Sheet.

                                    ARTICLE 2

                         Representations and Warranties

     2.1.  Representations  and Warranties of the  Shareholder.  The Shareholder
represents and warrants to Buyer as follows:

     2.1.1.  Organization  and  Standing.  The  Company  is a  corporation  duly
organized,  validly existing and in good standing under the laws of the State of
Kansas,  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,  except  where the failure to be so  qualified or licensed
would not have a material adverse effect on its financial condition,  properties
or business.

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

     2.1.3.  Capitalization.   The  authorized  capitalization  of  the  Company
consists of 25,000  shares of Company  Common  Stock,  of which,  as of the date
hereof,  82 shares  were issued and  outstanding  and held  beneficially  and of
record by the  Shareholder.  On the date  hereof,  the Company does not have any
outstanding options, warrants, calls or commitments of any character relating to
any of its  authorized  but  unissued  shares of capital  stock.  All issued and
outstanding  shares of Company Common Stock are validly  issued,  fully paid and
non-assessable and are not subject to preemptive rights. None of the outstanding
shares of Company Common Stock is subject to any voting trusts, voting agreement
or other agreement or understanding  with respect to the voting thereof,  nor is
any proxy in existence with respect thereto.

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

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

     2.1.6.  Financial Statements.  The Company has delivered to Buyer copies of
the Company=s  unaudited  balance sheet,  a copy of which is attached  hereto as
Schedule  2.1.6 (the A3/31 Balance  Sheet@),  and related  statements of income,
retained earnings and cash flow (collectively,  the "3/31 Financial Statements")
as at and for the 3 months ended March 31, 1997 (the ABalance Sheet Date@).  The
3/31  Financial  Statements  are  complete in all  material  respects.  The 3/31
Financial  Statements  presents fairly the financial condition of the Company as
at the dates and for the periods indicated.  The 3/31 Financial  Statements have
been  prepared in  accordance  with  generally  accepted  accounting  principles
(except for use of  accelerated  depreciation  method)  applied on a  consistent
basis.  The accounts  receivable  reflected in the 3/31 Balance Sheet,  or which
have  been  thereafter  acquired  by the  Company,  have been  collected  or are
believed to be collectible.

     2.1.7.  Liabilities.  Except as disclosed  on Schedule  2.1.7  hereto,  the
Shareholder  has no knowledge of any  liabilities  or  obligations  or potential
liabilities or obligations,  other than those  (i) reflected or reserved against
in the 3/31 Balance Sheet, or  (ii) incurred  in the ordinary course of business
since the  Balance  Sheet Date that would not  materially  adversely  affect the
value and conduct of the business of the Company.

     2.1.8.  Additional Company Information.  Attached as Schedule 2.1.8  hereto
are true,  complete and correct lists to the best of Shareholder=s  knowledge 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
the Company,  with a  description  of the nature and amount of any  Encumbrances
(defined  below)  thereon.  The term  AEncumbrances@  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;

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

     2.1.8.3. Receivables. All accounts and notes receivable of the Company.

     2.1.8.4. Payables. All accounts payable of the Company;

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

     2.1.8.6.  Contracts. All contracts which are to be performed in whole or in
part after the date hereof;

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

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

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

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

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

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

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

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

     2.1.8.15.  Guaranties.  All  indebtedness,  liabilities  and commitments of
others and as to which the Company is a guarantor,  endorser,  co-maker, surety,
or  accommodation   maker,  or  is  contingently  liable  therefor  (other  than
indemnification  provisions  in master  service  agreements)  and all letters of
credit, whether stand-by or documentary, issued by any third party;

     2.1.8.16.  Reserves  and  Accruals.  All  accounting  reserves and accruals
maintained in the 3/31 Balance Sheet;

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

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

     2.1.9.  No  Defaults.  The Company is not in default in any  obligation  or
covenant on its part to be  performed  under any  obligation,  lease,  contract,
order, plan or other arrangement to the best of Shareholder=s knowledge.

     2.1.10.  Absence of Certain  Changes and Events.  Other than as a result of
the transactions  contemplated by this Agreement,  since the Balance Sheet Date,
there has not been to Shareholder=s knowledge:

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

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

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

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

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

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

     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 the
Company for each period for which any such returns,  reports,  or estimates were
due (taking into account any extensions of time to file before the date hereof);
all such  returns are true and  correct;  the Company has only done  business in
Texas,  Kansas,  Oklahoma  and  Colorado;  all taxes shown by such returns to be
payable  and any other  taxes due and  payable  have been paid  other than those
being contested in good faith by the Company; and the tax provision reflected in
the 3/31 Balance  Sheet is  adequate,  in  accordance  with  generally  accepted
accounting  principles (except for use of accelerated  depreciation  method), to
cover  liabilities  of the Company at the date thereof for all taxes,  including
any  assessed  interest,  assessed  penalties  and  additions  to  taxes  of any
character  whatsoever  applicable  to the Company or its assets or business.  No
waiver of any statute of limitations executed by the Company with respect to any
income or other tax is in effect  for any  period.  Other than as  disclosed  on
Schedule  2.1.11  hereto,  the income tax returns of the Company have never been
examined by the Internal  Revenue  Service or the taxing  authority of any other
jurisdiction.  There are no tax liens on any  assets of The  Company  except for
taxes not yet currently  due. The Company is not subject to any  tax-sharing  or
allocation agreement.  The Company is not, nor has it ever attempted to become a
Subchapter  S-Corporation  under the Internal  Revenue Code of 1986, as amended.
The Company is not and never has been, a member of a consolidated  group subject
to Treasury Regulation 1.1502-6 or any similar provision.

     2.1.12.  Intellectual  Property.  The Company owns or possesses licenses to
use all  Intellectual  Property  that is either  material to the business of the
Company or that is necessary for the  rendering of any services  rendered by the
Company and the use or sale of any  equipment  or  products  used or sold by the
Company,  including  all such  Intellectual  Property  listed in  Schedule 2.1.8
hereto  (the  ARequired  Intellectual  Property@).   The  Required  Intellectual
Property is owned or licensed by the Company free and clear of any  Encumbrance.
The Company has not granted to any other  person any license to use any Required
Intellectual  Property. The Company has not received any notice of infringement,
misappropriation,  or conflict with, the Intellectual  Property rights of others
in connection with the use by the Company of the Required  Intellectual Property
or otherwise in connection with the Company=s operation of its business.

     2.1.13.  Title to and Condition of Assets.  Except as disclosed on Schedule
2.1.13 hereto,  the Company has good,  indefeasible  and marketable title to all
its properties, interests in properties and assets, real and personal, reflected
in the 3/31 Balance  Sheet or in Schedule  2.1.8  hereto,  free and clear of any
Encumbrance of any nature whatsoever,  except (i) Encumbrances  reflected in the
3/31 Balance Sheet or in Schedule 2.1.8 hereto, (ii) liens for current taxes not
yet due and  payable,  and (iii)  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 business operations.  To Shareholder=s  knowledge,  all leases
pursuant  to which  the  Company  leases  (whether  as  lessee  or  lessor)  any
substantial amount of real or personal property are in good standing, valid, and
effective;  and there is not,  under any such leases,  any  existing  default or
event of default or event  which with  notice or lapse of time,  or both,  would
constitute  a default by the Company and in respect to which the Company has not
taken  adequate  steps to prevent a default  from  occurring.  To  Shareholder=s
knowledge,  the  buildings  and  premises  of the  Company  that are used in its
business are in good  operating  condition and repair,  subject only to ordinary
wear and tear. To Shareholder=s knowledge,  all rigs, rig equipment,  machinery,
transportation  equipment,  tools  and other  major  items of  equipment  of the
Company are in good operating condition and in a state of 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 Shareholder=s  knowledge,  all such assets conform to all
applicable laws governing their use. To  Shareholder=s  knowledge,  no notice of
any violation of any law, statute, ordinance, or regulation relating to any such
assets has been received by the Company or any of the  Shareholder,  except such
as have been fully complied with.

     2.1.14. Contracts. To Shareholder=s knowledge, all contracts, leases, plans
or other  arrangements  to which the Company is a party, by which it is bound or
to  which it or its  assets  are  subject  are in full  force  and  effect,  and
constitute valid and binding obligations of the Company. To the knowledge of the
Shareholder,  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  Shareholder  knows  will  have an  adverse  effect  on the  Company.  The
Shareholder  has no knowledge that any customer of the Company is going to cease
doing  business  with  the  Company  (or  its  successors)  as a  result  of the
consummation of the transactions contemplated hereby.

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

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

     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,  on any property  presently or  previously
owned,  leased or  operated  by the  Company,  or on any  property  to which any
Substance  of  Environmental   Concern  or  waste  generated  by  the  Company=s
operations  or use of its assets were  disposed  of, which would have a result a
material  adverse  effect on the business or business  prospects of the Company.
The term ASubstance of Environmental Concern@ means (a) any gasoline,  petroleum
(including   crude   oil   or  any   fraction   thereof),   petroleum   product,
polychlorinated biphenyls,  urea-formaldehyde  insulation,  asbestos, pollutant,
contaminant,  radiation and any other substance of any kind,  whether or not any
such substance is defined as toxic or hazardous under any  Environmental Law (as
defined in Section 2.1.17.3 hereof), that is regulated pursuant to or could give
rise to liability under any Environmental Law;

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

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

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

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

     2.1.17.6. Liabilities. The Company has not assumed or retained, by contract
or operation of law, any liabilities of any kind, fixed or contingent,  known or
unknown,  under any  Environmental  Law, other than master  service  agreements,
leases, or other contracts made available to Buyer.

     2.1.17.7. Renewals. The Shareholder does not know of any reason the Company
(or its successors)  would not be able to renew without  material expense any of
the permits,  licenses, or other authorizations  required pursuant to any of the
Environmental  Law to conduct  and use any of the  Company=s  current or planned
operations; and

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

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

     2.1.19.  Employee Plans and Labor Issues. To Shareholder's  knowledge,  all
Employee  Plans (as  defined  in Section  2.1.8.7)  covering  active,  former or
retired  employees  of the Company are listed on  Schedule  2.1.8.7.  Solely for
purposes of the representations in this Section 2.1.19, the term ACompany@ means
Patrick Well Service,  Inc., as well as any other entity which is considered one
employer with Patrick Well Service,  Inc., under Sections  414(b),  (c), (m) and
(o) of the Internal  Revenue Code of 1986, as amended (the ACode@).  The Company
has made  available to Buyer a copy of each  Employee  Plan,  any related  trust
agreement and annuity or insurance contract,  and each plan=s most recent annual
report  (Form  5500  series)  filed  with  the  Internal  Revenue  Service,   if
applicable.  The only  Employee  Plan that the  Company  maintains,  or that the
Company or any predecessor  thereto has ever maintained,  that is intended to be
qualified  under Section  401(a) of the Code is the Patrick Well Service,  Inc.,
Profit Sharing Plan (the "Profit  Sharing  Plan") and,  without  limitation,  no
pension  plan or  multiemployer  plan  subject  to Title  IV  (Plan  Termination
Insurance)  of the Employee  Retirement  Income  Security  Act 1974,  as amended
("ERISA")  or the minimum  funding  requirements  of Section 412 of the Code has
ever been maintained.  Each Employee Plan has been maintained and  administered,
in all material respects, in compliance with its terms and with the requirements
prescribed by any applicable statutes, orders, rules and regulations,  including
the Code and ERISA,  and (i) all required Forms 5500 for the Employee Plans have
been timely  filed with the  Internal  Revenue  Service or an  extension  of the
filing  due date has been  granted by the  Internal  Revenue  Service;  (ii) the
Profit Sharing Plan has received a current favorable  determination  letter from
the  Internal  Revenue  Service to the effect  that the Profit  Sharing  Plan is
qualified  under Section  401(a) of the Code, and nothing has occurred since the
effective date of such  determination  letter to adversely  affect, or cause the
appropriate  governmental  agency or authority to revoke,  such qualification or
approval;  (iii) there are no pending or anticipated claims against or otherwise
involving any of the Employee  Plans,  and no suit,  action or other  litigation
(excluding  claims for benefits incurred in the ordinary course of Employee Plan
activities)  has been brought against or with respect to any Employee Plan; (iv)
all  contributions,  reserves  or premium  payments  required  to be made to the
Employee  Plans have  either  been made or  properly  accrued  on the  Company's
financial statements;  (v) the Company does not have any obligations for retiree
health and life benefits under any Employee Plan, (vi) there are no restrictions
on the rights of the Company to amend or  terminate  any  Employee  Plan without
incurring any liability thereunder; and (vii) none of the Employee Plans provide
for additional or accelerated  payments or benefits to employees or shareholders
of the Company upon a change of control or ownership of the Company.

     The  Company is not  obligated  to pay any  severance  or  benefits  to any
employee  or former  employee  of the Company as the result of any change in the
ownership or control of the  Company.  The Company has not engaged in any unfair
labor  practices  which  could  reasonably  be  expected to result in an adverse
effect on its  operations or assets.  The Company does not have any dispute with
any of its existing or former employees.  There are no labor disputes or, to the
knowledge  of any of the  Shareholder,  any  disputes  threatened  by current or
former  employees  of  the  Company.  2.1.20.  Investigations;   Litigation.  To
Shareholder=s  knowledge,  no investigation or review by any governmental entity
with  respect to the  Company or any of the  transactions  contemplated  by this
Agreement is pending or threatened, nor has any governmental entity indicated to
the Company an  intention to conduct the same,  and there is no action,  suit or
proceeding  pending or, to the knowledge of the Shareholder,  threatened against
or  affecting  the Company at law or in equity,  or before any  federal,  state,
municipal or other governmental department, commission, board, bureau, agency or
instrumentality, that either individually or in the aggregate, does or is likely
to result in any material adverse change in the financial condition,  properties
or business of the Company.

     2.1.21. Absence of Certain Business Practices. To Shareholder=s  knowledge,
neither the Company nor any officer,  employee or agent of the Company,  nor any
other person acting on its behalf, has, directly or indirectly,  within the past
five years, given or agreed to give any gift or similar benefit to any customer,
supplier,  government employee or other person who is or may be in a position to
help or hinder  the  business  of the  Company  (or to  assist  the  Company  in
connection with any actual or proposed  transaction) which (i) might subject the
Company  to any  damage  or  penalty  in any  civil,  criminal  or  governmental
litigation  or  proceeding,  (ii) if not  given in the  past,  might  have had a
material adverse effect on the assets,  business or operations of the Company as
reflected in the 3/31  Financial  Statements,  or (iii) if not  continued in the
future,  might materially  adversely effect the assets,  business  operations or
prospects  of the Company or which might  subject the Company to suit or penalty
in a private or governmental litigation or proceeding.

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

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

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

                                    ARTICLE 3

                              Additional Agreements

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

     3.2.  Release of Shareholder  from Guaranty.  Within 30 days,  Buyers shall
obtain a complete  release of the personal  guaranty of Shareholder and his wife
from NationsBank, Liberal, Kansas, and indemnify Shareholder and his wife during
that period of time should the guaranty be invoked by NationsBank.

     3.3.  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.

                                    ARTICLE 4

                                 Indemnification

     4.1.  Indemnification by and Remedies Against the Shareholder.  In addition
to any other remedies  available to Buyer under this Agreement,  or at law or in
equity,  the Shareholder shall indemnify,  defend and hold harmless the Company,
Buyer and their affiliates and their respective officers, directors,  employees,
agents and stockholders (collectively, the ABuyer Indemnified Parties@), against
and with  respect  to any and all  claims,  costs,  damages,  losses,  expenses,
obligations,  liabilities, recoveries, suits, causes of action and deficiencies,
including  interest,  penalties and  reasonable  fees and expenses of attorneys,
consultants and experts  (collectively,  the ADamages@) in excess of $150,000 in
the aggregate that the Buyer  Indemnified  Parties shall incur or suffer,  which
arise, result from or relate to any breach by the Shareholder of (or the failure
of the  Shareholder  to perform)  his  respective  representations,  warranties,
covenants  or  agreements  in this  Agreement or in any  schedule,  certificate,
exhibit or other  instrument  furnished or delivered to Buyer by the Shareholder
under this Agreement or provided,  however,  that the  Shareholder  shall not be
required to so indemnify,  defend and hold harmless  Buyer  Indemnified  Parties
against and with respect to any Damages  incurred as a result of a breach by the
Shareholder  of his  representations  and warranties in this Agreement or in any
schedule,  certificate,  exhibit or other  instrument  furnished or delivered to
Buyer by the  Shareholder  under this Agreement for which Buyer fails to provide
written  notice of a claim for such Damages to the  Shareholder on or before the
expiration  of the survival  period (as  specified in Section 5.1 hereof) of the
specific representation or warranty alleged to have been breached.

     4.2.  Indemnification  by and Remedies  Against  Buyer.  In addition to any
other remedies available to the Shareholder under this Agreement or at law or in
equity,  Buyer shall  indemnify  and hold  harmless the  Shareholder,  his wife,
children, agents, representatives,  attorneys,  successors, heirs, executors and
administrators  (collectively  the AShareholder  Indemnified  Parties@) from any
Damages that the Shareholder  Indemnified  Parties shall incur or suffer,  which
arise, result from or relate to (i) any breach of or failure by Buyer to perform
any  of  its  representations,  warranties,  covenants  or  agreements  in  this
Agreement or in any schedule, certificate, exhibit or other instrument furnished
or delivered to the Shareholder by or on behalf of Buyer under this Agreement or
(ii)  the  conduct  of the  Company=s  business  on or after  the  date  hereof,
provided,  however, that Buyer shall not be required to so indemnify, defend and
hold  harmless the  Shareholder  Indemnified  Parties as a result of a breach by
Buyer of any of its  representations  and warranties in this Agreement or in any
schedule, certificate, exhibit or other instrument furnished or delivered to the
Shareholder  by Buyer under this  Agreement for which the  Shareholder  fails to
provide  written  notice of the claim for such damages to Buyer on or before the
expiration  of the survival  period (as  specified in Section 5.1 hereof) of the
specific representation or warranty alleged to have been breached.

     4.2.  Indemnification  Procedure.  In  the  event  that  any  party  hereto
discovers or otherwise becomes aware of an  indemnification  claim arising under
Section 4.1 or 4.2 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  Section  4.1 or  4.2  hereof,  such
indemnified party shall, if a claim in respect thereof is to be made against any
indemnifying  party,  give written notice to the latter of the  commencement  of
such action;  provided,  however,  that the failure of any indemnified  party to
give notice as provided herein shall not relieve the  indemnifying  party of any
obligations  hereunder,  to the extent the indemnifying  party is not materially
prejudiced  thereby.  In case any such action is brought  against an indemnified
party, the indemnifying  party shall be entitled to participate in and to assume
the  defense  thereof,  jointly  with any  other  indemnifying  party  similarly
notified,  to the extent that it may wish, with counsel reasonably  satisfactory
to such indemnified  party, and after such notice from the indemnifying party to
such  indemnified  party of its election so to assume the defense  thereof,  the
indemnifying  party shall not be liable to such indemnified  party for any legal
or other  expenses  subsequently  incurred by the latter in connection  with the
defense thereof unless the  indemnifying  party has failed to assume the defense
of such claim and to employ counsel reasonably  satisfactory to such indemnified
person.  An  indemnifying  party who elects not to assume the defense of a claim
shall not be liable for the fees and  expenses  of more than one  counsel in any
single  jurisdiction for all parties indemnified by such indemnifying party with
respect to such claim or with respect to claims  separate but similar or related
in  the  same  jurisdiction   arising  out  of  the  same  general  allegations.
Notwithstanding any of the foregoing to the contrary, the indemnified party will
be  entitled  to select its own  counsel  and  assume the  defense of any action
brought against it if the indemnifying  party fails to select counsel reasonably
satisfactory to the indemnified  party,  the expenses of such defense to be paid
by the indemnifying  party. No indemnifying  party shall consent to entry of any
judgment  or enter  into any  settlement  with  respect to a claim  without  the
consent  of the  indemnified  party,  which  consent  shall not be  unreasonably
withheld,  or unless such  judgment or settlement  includes as an  unconditional
term thereof the giving by the claimant or plaintiff to such  indemnified  party
of a release from all liability with respect to such claim. No indemnified party
shall consent to entry of any judgment or enter into any  settlement of any such
action, the defense of which has been assumed by an indemnifying party,  without
the consent of such indemnifying  party, which consent shall not be unreasonably
withheld or delayed.


                                    ARTICLE 5

                                  Miscellaneous

     5.1.   Survival  of   Representations,   Warranties  and   Covenants.   All
representations  and  warranties  made by the parties hereto shall survive for a
period of 24 months from the date hereof, notwithstanding any investigation made
by or on  behalf  of any of the  parties  hereto;  provided,  however,  that the
representations and warranties  contained in Section 2.1.11 hereof shall survive
until the expiration of the applicable  statute of limitations  associated  with
the taxes at issue.  All  statements  contained  in any  certificate,  schedule,
exhibit or other instrument delivered pursuant to this Agreement shall be deemed
to have been  representations and warranties by the respective party or parties,
as the case may be, and shall also  survive  for a period of 24 months  from the
date hereof despite any investigation made by any party hereto or on its behalf.
All covenants and agreements contained herein shall survive as provided herein.

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

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

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

                                                     If to Buyer

Addressed to:                                       With a copy to:


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

 

                                                  If to Shareholder


     Addressed to:                            With a copy to:
    Monty D. Elmore                           Gene H. Sharp, Esq.
     2133 Sierra         Sharp, McQueen, McKinley, Dreiling, Morain & Tate, P.A.
     Liberal, Kansas 67901                    419 N. Kansas - P. O. Box 2619
                                              Liberal, Kansas 67905-2619
                                              Facsimile: (316) 624-9163

                                              Rex A. Sharp, Esq.
                                              Husch & Eppenberger
                                              1200 Main Street, Suite 1700
                                              Kansas City, Missouri 64105-2100
                                              Facsimile: (816) 421-0596

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

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

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

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

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


     IN WITNESS  WHEREOF,  the  Shareholder  has executed this Agreement and the
other parties hereto have caused this Agreement to be signed in their respective
corporate names by their respective duly authorized  representatives,  all as of
the day and year first above written.

                                                     WELLTECH EASTERN, INC.



                                                     By: _____________________
                                                     Name:    Bill Bixler
                                                     Title:   Vice President



                                                     SHAREHOLDER



                                                     ________________________
                                                     Monty D. Elmore