EXECUTION COPY








                            Stock Purchase Agreement

                                     Between

                             WellTech Eastern, Inc.

                                       and

                          Kenting Energy Services Inc.

 







                            Dated as of July 30, 1997

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                            Stock Purchase Agreement

     This Stock Purchase Agreement (this "Agreement") is entered into as of July
30,  1997  by  and  between  WellTech  Eastern,  Inc.,  a  Delaware  corporation
("Buyer"),  and  Kenting  Energy  Services  Inc.,  an Alberta  corporation  (the
"Shareholder").


                                  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, Kenting Holdings (Argentina) S.A. (the "Company") is a corporation
duly organized and validly existing under the laws of the republic of Argentina,
with its  principal  executive  offices at Uruguay  1134-Piso  3, (1016)  Buenos
Aires, Argentina; and

     Whereas,  Kenting Drilling (Argentina) S.A. (the "Company Subsidiary") is a
subsidiary  of the  Company  and is a  corporation  duly  organized  and validly
existing  under  the laws of the  republic  of  Argentina,  with  its  principal
executive offices at Uruguay 1134-Piso 3, (1016) Buenos Aires, Argentina; and
 
     Whereas,  the Shareholder owns 15,300,000  shares (the "Company Shares") of
common  stock,  par value  $1.00 per  share,  of the  Company  ("Company  Common
Stock"),  which constitutes all of the issued and outstanding  shares of capital
stock of the Company

     Whereas, the Company owns 24,545,362 shares (the "Company-Owned  Subsidiary
Shares") of common stock,  par value $1.00 per share, of the Company  Subsidiary
("Subsidiary  Common  Stock"),  and the  Shareholder  owns  37,386  shares  (the
"Shareholder-Owned   Subsidiary  Shares")  of  Subsidiary  Common  Stock,  which
constitutes  all of the issued and  outstanding  shares of capital  stock of the
Company Subsidiary; 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 and all of the shares of capital  stock of the  Company  Subsidiary
owned by the Shareholder.

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



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                                    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 agrees to sell
and  convey to Buyer,  free and clear of all  Encumbrances  (defined  below) and
Buyer  agrees to purchase  and accept from the  Shareholder,  all of the Company
Shares and all of the  Shareholder-Owned  Subsidiary Shares. In consideration of
the sale of the  Company  Shares and the  Shareholder-Owned  Subsidiary  Shares,
Buyer  shall  pay to the  Shareholder  $9,575,000  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. In addition,
on the date hereof Buyer shall pay to the  Shareholder  $525,000 in satisfaction
of all debts  remaining  due to the  Shareholder  or irs  affiliates on the date
hereof. The term "Encumbrances"  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.

     1.2.  Recording the Transfer of Shares. The parties hereto acknowledge that
the Company  Shares are currently held of record as follows:  15,299,988  shares
(the  "KID  Company  Shares")  by  Kenting  Drilling   International,   Inc.,  a
predecessor  (by  amalgamation)  to the  Shareholder  ("KID") and 12 shares (the
"KESL  Company  Shares")  by Kenting  Energy  Services  Ltd, a  predecessor  (by
amalgamation) to the Shareholder  ("KESL").  The parties hereto acknowledge that
the Shareholder-  Owned  Subsidiary  Shares are currently held of record by KID.
The  Shareholder  represents and warrants to Buyer that it has validly  acquired
the KID  Company  Shares,  the KESL  Company  Shares  and the  Shareholder-Owned
Subsidiary  Shares by means of an amalgamation of various  affiliated  corporate
entities and a subsequent  liquidation  of the resulting  entity  without having
such acquisitions (the "Shareholder  Stock  Acquisitions")  formally recorded in
the appropriate stock records of the Company and the Company Subsidiary.  On the
date hereof,  the Shareholder  shall caused to be filed in the appropriate stock
records of the Company  and the  Company  Subsidiary  those  transfer  documents
necessary to properly  record the Shareholder  Stock  Acquisitions in accordance
with  Argentina  law (the  "Delinquent  Filings") and those  transfer  documents
necessary  to  properly  record  the  transfer  of the  Company  Shares  and the
Shareholder-Owned  Shares  hereunder in accordance with Argentina law such that,
as a result of such  filings,  the Buyer  (and its  designees)  will  become the
record and  beneficial  owners of the Company  Shares and the  Shareholder-Owned
Subsidiary Shares.
 
     1.3  Adjustment  of Purchase  Price.  Buyer shall cause to be prepared  and
delivered to the  Shareholder a consolidated  balance sheet of the Company as of
the date hereof (the "Final  Balance  Sheet")  within  sixty (60) days after the
date hereof,  which balance  sheet will be prepared in accordance  with Canadian
generally accepted accounting  principles,  consistently applied in all respects
(which  shall not  include  any reserve or  accruals  for  employee  termination
costs).  Buyer and the Shareholder shall jointly review the Final Balance Sheet,
and endeavor in good faith to resolve all  disagreements  regarding  the entries
thereon and reach a final determination thereof within 90 days

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     from the date  hereof.  In the event that the parties  cannot  agree on the
entries to be placed on the Final Balance Sheet, the dispute will be resolved by
an independent  accounting  firm mutually agreed to by the Shareholder and Buyer
(such  agreement not to be  unreasonably  withheld or delayed) whose  resolution
shall be binding on and enforceable  against the parties hereto.  Within 10 days
of reaching such final determination,  the following adjusting payments shall be
made:

     (1) If the sum of (A) the Final Net Current  Value of the Company  (defined
below) plus (B) $100,056 (the"Capital Expenditure Amount") exceeds the 4/30 Net
Current Value of the Company (defined below), Buyer shall pay to the Shareholder
the amount of such excess (the "Cash Adjustment Payment").

     (2) If the sum of (A) the Final Net Current  Value of the Company  plus the
Capital  Expenditure  Amount  is less  than the 4/30  Net  Current  Value of the
Company, the Shareholder shall pay to Buyer the amount of such difference.

     The term "Final Net Current Value of the Company" means the dollar value of
the amount by which (i) the "Total  Current  Assets"  (excluding any prepaid job
costs relating to the assets referred to in Schedule 2.1.8 hereto (the "Excluded
Assets")  transferred  from the  Company  to the  Shareholder  or an  associated
company  of  the  Shareholder  in  anticipation  of  the   consummation  of  the
transactions   contemplated   hereby  but   including  the  book  value  of  any
"Inventories" included in the Excluded Assets) plus the "Other Assets" minus the
"Due from Kenting Group" as recorded on the Final Balance Sheet exceeds (ii) the
'Total  Current  Liabilities"  plus the " Term Debt" plus the  "Deferred  Income
Taxes" minus the "Due to Kenting  Group" as recorded on the Final Balance Sheet.
The term"4/30 Net Current  Value of the Company"  means the dollar value of the
amount by which (i) the "Total Current Assets"  (excluding any prepaid job costs
relating  to  the  Excluded   Assets  but   including  the  book  value  of  any
"Inventories" included in the Excluded Assets) plus the "Other Assets" minus the
"Due from Kenting  Group" as recorded on the 4/30  Balance  Sheet (as defined in
Section  2.1.6 hereof)  exceeds (ii) the "Total  Current  Liabilities"  plus the
"Term Debt" plus the"Deferred Income Taxes" minus the "Due to Kenting Group" as
recorded on the 4/30 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.  Each  of  the  Company,  the  Company
Subsidiary and the Shareholder is a corporation duly organized, validly existing
and in good standing under the laws of its  jurisdiction  of  organization,  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

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     and  is  in  good  standing  and  is  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 an adverse effect on its financial condition, properties or business.

     2.1.2.  Agreement  Authorized  and its  Effect  on Other  Obligations.  The
execution  and  delivery  of  this  Agreement  have  been  authorized  by all of
necessary  corporate action on the part of the Shareholder,  and the Shareholder
has the legal  capacity and  requisite  power and  authority to enter into,  and
perform its  obligations  under this  Agreement.  This  Agreement is a valid and
binding  obligation  of the  Shareholder  enforceable  against  the  Shareholder
(subject to normal equitable principles) in accordance with its terms, except as
enforceability   may  be   limited   by   applicable   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)  any  of  the
organizational  or other  documents of the Company or the Company  Subsidiary or
(ii) any obligation,  indenture,  mortgage,  deed of trust,  lease,  contract or
other agreement to which the Company,  the Company Subsidiary or the Shareholder
is a party or by which the Company, the Company Subsidiary or the Shareholder or
their respective properties are bound.

     2.1.3.  Capitalization.   The  authorized  capitalization  of  the  Company
consists of 15,300,000  shares of Company Common Stock, of which, as of the date
hereof,  15,300,000  shares  were  issued and  outstanding  and,  following  the
recording of the Delinquent Filings,  are 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.  The authorized  capitalization  of
the Company Subsidiary consists of 24,582,748 shares of Subsidiary Common Stock,
all of which  shares were issued and  outstanding  as of the date  hereof,  with
24,545,362 shares held beneficially and of record by the Company  (following the
recording of the Delinquent  Filings) and 37,386 shares held beneficially and of
record by the Shareholder  (following the recording of the Delinquent  Filings).
On the date  hereof,  the  Company  Subsidiary  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  Subsidiary   Common  Stock  are  validly  issued,   fully  paid  and
non-assessable and are not subject to preemptive rights. None of the outstanding
shares of Subsidiary Common Stock is subject to any voting

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

     2.1.5.  No  Subsidiaries.  Other than the Company  Subsidiary,  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  unaudited  consolidated  balance  sheet  of the  Company  and  the  Company
Subsidiary  (the "4/30 Balance  Sheet") and related  consolidated  statements of
income, copies of which are attached hereto as Schedule 2.1.6 (collectively, the
"4/30 Financial Statements"), as at and for the four months ended April 30, 1997
(the "Balance Sheet Date").  The 4/30  Financial  Statements are complete in all
material respects. The 4/30 Financial Statements presents fairly in all material
respects the consolidated financial condition of the Company as at the dates and
for the periods indicated.  The 4/30 Financial  Statements have been prepared in
accordance with Canadian generally accepted  accounting  principles applied on a
consistent basis.

     2.1.7.  Liabilities.  Except as provided in Schedule  2.1.7 hereto,  to the
knowledge of any of (i) the  directors  and  officers of the  Company,  (ii) the
directors  and  officers  of the Company  Subsidiary,  (iii) Gary Meier and (iv)
Ricardo Lopez Olaciregui (collectively,  the "Company Management"),  neither the
Company nor the Company  Subsidiary has any liabilities or  obligations,  either
accrued,  absolute or contingent,  nor are any of the foregoing persons aware of
any  potential  liabilities  or  obligations  (including,   without  limitation,
liabilities  related to  non-performance  of  contracts,  non-payment  of taxes,
infringement  of the  intellectual  property  rights of  others,  violations  of
applicable  laws,  current or pending  litigation,  environmental  conditions or
labor disputes) that could materially  adversely affect the value and conduct of
the business of the Company and the Company Subsidiary, taken

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     as a whole, other than  those required to be reflected or properly reserved
against in the 4/30 Balance Sheet and the Final Balance Sheet (and which will be
reflected  in an  accurate  calculation  of the  4/30 Net  Current  Value of the
Company and the Final Net Current Value of the Company).

     2.1.8.  Absence of Certain  Changes and Events.  The Shareholder has caused
the Company and the Company  Subsidiary to make those fixed asset  transfers and
those balance sheet  adjustments  referred to in Schedule  2.1.8 hereto.  To the
knowledge  of Company  Management,  other  than the  transactions  specified  in
Schedule  2.1.8  hereto,  since the Balance  Sheet Date,  there has not been any
material  reduction  in the value of the  fixed  assets  of the  Company  or the
Company  Subsidiary  or the  occurrence of any other  transaction  or event that
could  materially  adversely affect the value and conduct of the business of the
Company and the Company Subsidiary, taken as a whole, other than those that will
be reflected in an accurate  calculation  of the Final Net Current  Value of the
Company.

     2.1.9.  Title to and  Condition of Assets.  Except as disclosed on Schedule
2.1.9  hereto,  the Company and the  Company  Subsidiary  have good title to all
their assets reflected in the 4/30 Balance Sheet, including, without limitation,
all of the Company-Owned Subsidiary Shares, free and clear of any Encumbrance of
any nature  whatsoever,  except  (i) Encumbrances  reflected in the 4/30 Balance
Sheet,  (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.

     2.1.10. Consents and Approvals. All consents,  approvals and authorizations
required to be made or obtained by the Company,  the Company  Subsidiary  or the
Shareholder in connection  with the  execution,  delivery or performance of this
Agreement or the consummation of the transactions  contemplated hereby have been
obtained.

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

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

     2.2.1.  Organization  and  Good  Standing.  Buyer  is  a  corporation  duly
organized,  validly existing and in good standing under the laws of the State of
Delaware,  has full  requisite  corporate  power and  authority  to carry on its
business as it is  currently  conducted,  and to own and operate the  properties
currently owned and operated by it, and is duly

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     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 an adverse effect on its financial
condition, properties or business.

     2.2.2.  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 Buyer,  and this
Agreement is a valid and binding  obligation  of Buyer  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 Buyer will not conflict
with or  result  in a  violation  or  breach  of any term or  provision  of,  or
constitute a default under (a) the  Certificate  of  Incorporation  or Bylaws of
Buyer or (b) any obligation, indenture, mortgage, deed of trust, lease, contract
or other agreement to which Buyer or any of its property is bound.

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

     2.2.4.  Finder's Fee. All  negotiations  relative to this Agreement and the
transactions  contemplated  hereby have been carried on by Buyer and its counsel
directly with the Company,  the Company  Subsidiary and the  Shareholder and its
counsel,  without the  intervention by any other person as the result of any act
of Buyer 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

                              Additional Agreements

     3.1.  Noncompetition.  Except as  otherwise  consented  to or  approved  in
writing by Buyer, the Shareholder agrees that for a period of 42 months from the
date hereof,  it will not (and will cause its  affiliates  not to),  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 any  businesses  involved in  providing  well  servicing or
shallow/moderate  depth drilling services within the country of Argentina;  (ii)
request  any  present  customers  or  suppliers  of the  Company or the  Company
Subsidiary  to curtail or cancel their  business  with the Company,  the Company
Subsidiary, Buyer or

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     any affiliate of Buyer;  (iii) disclose to any person,  firm or corporation
any trade,  technical  or  technological  secrets of the  Company,  the  Company
Subsidiary, 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,  the Company  Subsidiary,  Buyer or any  affiliate  of Buyer to
terminate his employment.  The  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 any  jurisdiction  in  which  they do
business  requiring  an employee of a business  or a  shareholder  who sells his
stock in a  corporation  (including  a  disposition  in a  merger)  to limit his
activities  so that the goodwill  and business  relations of his employer and of
the corporation whose stock he has sold (and any successor corporation) will not
be materially impaired.  Each of the Shareholder further agrees and acknowledges
that the Company,  the Company Subsidiary,  Buyer and its affiliates do not have
any  adequate  remedy  at  law  for  the  breach  or  threatened  breach  by the
Shareholder  of  this  covenant,   and  agree  that  the  Company,  the  Company
Subsidiary,  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
the 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.  Employee Matters.  From the date hereof,  the Company and the Company
Subsidiary   shall  remain   responsible  for  all  costs  associated  with  the
termination  of any  of  their  employees  terminated  after  the  date  hereof;
provided,  however, that the Shareholder shall be solely responsible for any and
all  liabilities,  costs and expenses  associated  with the  termination of Gary
Meier by either the Company or the Company Subsidiary,  regardless of whether he
is terminated before, on or after the date hereof (the "Meier Termination").

     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. Without limiting the generality
of the foregoing,  the Shareholder shall take those actions reasonably requested
by Buyer to (i)  properly  record the  transfer  of the  Company  Shares and the
Shareholder-Owned  Subsidiary  Shares in accordance  with Section 1.2 hereof and
(ii) resolve the title exceptions described in Schedule 2.1.9 hereto.


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                                    ARTICLE 4

                                 Indemnification

     4.1. Indemnification by 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,  the Company Subsidiary,
Buyer and their affiliates and their respective officers, directors,  employees,
agents and stockholders (collectively, the "Buyer Indemnified Parties"), against
and with respect to any and all claims, costs, damages, losses, expenses, obliga
tions,  liabilities,  recoveries,  suits,  causes  of action  and  deficiencies,
including  interest,  penalties and  reasonable  fees and expenses of attorneys,
consultants and experts (collectively, the "Damages") that the Buyer Indemnified
Parties  shall incur or suffer,  which  arise,  result from or relate to (i) any
breach by the  Shareholder of (or the failure of the Shareholder to perform) its
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 (ii) the Meier
Termination.

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

     4.3.  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

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

     5.2.  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:


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                                                    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 any Shareholder


Addressed to:                                            With a copy to:
Kenting Energy Services Inc.                             Howard Mackie
Suite 700, 112 - 4th Ave. S.W.                           1000 Canterra Tower
Calgary, Alberta T2P0H3                                  400 Third Ave. S.W.
Attn: Chief Operating Officer                           Calgary, Alberta T2P0H3
Facsimile: (403) 264-0251                                Attn: Brian Roberts
                                                       Facsimile: (403) 266-1395

 
     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. While the parties hereto  acknowledge and agree that
the transfer of the Company Shares and the  Shareholder-Owned  Subsidiary Shares
hereunder shall be effected and

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     recorded in accordance with Argentina law, this Agreement shall be governed
by and  construed  and enforced in accordance  with the  applicable  laws of the
Province of Alberta.

     5.9. Fees, Expenses.  All legal and other fees and expenses incurred by the
parties  hereto in connection  with the  negotiation  of this  Agreement and the
consummation of the  transactions  contemplated  hereby shall be borne solely by
the party incurring such fee or expense.  Without limiting the generality of the
foregoing,  any fees and  expenses  incurred  by the  Shareholder's  counsel  in
connection  with  updating  the stock  records of the  Company  and the  Company
Subsidiary as required to properly  record the transfer of the shares  hereunder
shall not be the  obligation  of the  Company  or the  Company  Subsidiary.  All
out-of-pocket  expenses incurred by Buyer, the Company or the Company Subsidiary
in connection  with resolving the title  exceptions  described in Schedule 2.1.9
hereto shall be reimbursed  by the  Shareholder  promptly  upon written  request
accompanied by written evidence of such expense.


                                             [SIGNATURE PAGE FOLLOWS]


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                                       12

 

     IN WITNESS  WHEREOF,  the 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:                     
                                                     Title:                    



                                                    KENTING ENERGY SERVICES INC.
 

                                                    By:                        
                                                    Name:                      
                                                    Title                      





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                                       13

                   Schedule 2.1.6 - 4/30 Financial Statements


                  See the financial statements attached hereto


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                          Schedule 2.1.7 - Liabilities


                         See the listing attached hereto




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                                       15

               Schedule 2.1.8 - Material Pre-Closing Transactions


Excluded Assets:

     Since the Balance Sheet date and in anticipation of the consummation of the
transactions   contemplated  by  this  Agreement,  the  Company  Subsidiary  has
transferred to P.D.  Technical Services Inc. the following assets referred to in
the attached Bill of Sale (the "Excluded Assets"):

Balance Sheet Adjustments:

     The  amounts  payable  from the Company or the  Company  Subsidiary  to the
Shareholder or its affiliates in excess of the amounts payable to the Company or
the Company Subsidiary from the Shareholder or its affiliates shall be satisfied
as follows:

     $3,000,000  US will be canceled in  consideration  for the  transfer of the
Excluded  Assets with the  remaining  $525,000 US to be paid by the Buyer on the
date hereof.




 


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                        Schedule 2.1.9 - Title Exceptions


     1. The  Argentina  real  property  records do not  currently  show that the
Company  Subsidiary is the owner of the parcel of real  property  located in Las
Heres,  Argentina  and the two  parcels of real  property  located  in  Comodoro
Rivadavia,  Argentina (the "Company  Property") that valid purchase documents in
the possession of the Company Subsidiary  indicate it as owning. The Shareholder
represents  and  warrants  that (i) the Company  Subsidiary  is the owner in fee
simple of the Company Property (with no material Encumbrances thereon),  (ii) no
other party has claimed or can validly claim title to any portion of the Company
Property  and  (iii)  it has (or  will  cause  to be)  delivered  all  documents
necessary to file in the appropriate  real property  records to reflect that the
Company  Subsidiary  owns the  Company  Property  in fee  simple,  free from any
material Encumbrances.

     2.  Some of the  certificates  of  title  covering  the  thirty-seven  (37)
automobiles  and  light  pickup  trucks  owned by the  Company  Subsidiary  (the
"Company Vehicles") either do not properly reflect the Company Subsidiary as the
owner thereof or indicate that such  automobile is subject to a third part lien.
The Shareholder represents and warrants that Company Vehicles are owned outright
by the Company  Subsidiary  subject to no Encumbrances,  (ii) no other party has
claimed or can validly  claim title to any of the Company  Vehicles and (iii) it
has (or will cause to be)  delivered  to Buyer all  documents  necessary to file
with the  appropriate  governmental  agency to enable the Company  Subsidiary to
obtain a clear certificate of title to each Company Vehicle.



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