ASSET PURCHASE AGREEMENT
                            ------------------------

           This ASSET PURCHASE  AGREEMENT (the  "Agreement") is made and entered
into as of the 31st day of  December,  2001,  by,  between  and  among:  (1) CJS
PINNACLE PETROLEUM SERVICES,  LLC, a Texas Limited Liability Company ("Pinnacle"
and the  "Seller"),  whose  address is c/o  Warren  Resources,  Inc.,  489 Fifth
Avenue,  32nd Floor,  New York, New York 10017;  and (2) BASIC ENERGY  SERVICES,
INC., a Delaware  Corporation  ("Basic" and the  "Buyer"),  whose address is 406
North Big Spring,  Midland,  Texas 79701. Pinnacle (as the Seller) and Basic (as
the Buyer) may be referred to herein  individually as a "Party" and collectively
as the "Parties".

                                    RECITALS:
                                    ---------

           WHEREAS, the Seller owns certain Assets (as hereinafter defined), and
is engaged in the business of  providing  oil and gas well  services,  including
workover and  completion  services and  plugging and  abandoning  of oil and gas
wells.

           WHEREAS, the Seller has agreed to sell, convey, transfer,  assign and
deliver  the  Assets to the  Buyer,  and the Buyer has  agreed to  purchase  and
accept, as hereinafter provided,  the Assets from the Seller; all subject to the
terms, conditions, limitations and provisions hereinafter set forth.

           NOW,  THEREFORE,  for and in consideration  of the mutual  covenants,
agreements and undertakings contained herein, and upon the terms, conditions and
provisions set forth below, the Parties agree as follows:

                                    ARTICLE I
                                    ---------

                                   DEFINITIONS
                                   -----------

           For purposes of this  Agreement,  the  following  defined terms shall
have the meanings set forth below:

           A.        "Agreement" means this ASSET PURCHASE AGREEMENT.

           B.        "Assets"  means all of the assets,  property  and rights of
                     Seller of every kind and  character,  whether  tangible  or
                     intangible,   save   and   except   the   Excluded   Assets
                     (hereinafter defined), but specifically including,  without
                     limitation:  (1)  all oil  and  gas  workover,  completion,
                     plugging,  abandonment and well servicing rigs,  machinery,
                     tools, equipment,  vehicles, inventory, parts, supplies and
                     any and all personal  property related thereto,  as well as
                     all  contracts,  agreements,  contract  rights  and work in
                     process related thereto, currently owned by and used in the



                     business of the Seller and more  particularly  described in
                     EXHIBIT "A" attached hereto and incorporated herein for all
                     purposes  by this  specific  reference;  (2) the  Contracts
                     (hereinafter  defined);  (3)  all  technologies,   methods,
                     formulations,   data  bases,  patents,   trademarks,  trade
                     secrets, know how and other intellectual  property, if any,
                     used in the  Business  and  owned  by the  Seller;  (4) all
                     existing and assignable  guaranties and warranties (express
                     or  implied)  issued in  connection  the  purchase,  lease,
                     construction,  alteration  and/or  repair  of any  property
                     included  within the Assets;  (5) all  information,  files,
                     records,  data, plans and recorded  information,  including
                     supplier  lists  and  customer   lists,   relating  to  the
                     ownership and operation of the Business,  provided that the
                     Seller shall be entitled to keep, retain and utilize copies
                     of all accounting and tax records maintained by the Seller;
                     (6) all right,  title and  interest of the Seller in and to
                     the name "CJS Pinnacle Petroleum Services" and any trade or
                     assumed  names used by the Seller in the  operation  of the
                     Business; and (7) all goodwill of the Seller.

           C.        "Basic"  means  BASIC  ENERGY  SERVICES,  INC.,  a Delaware
                     Corporation (the "Buyer").

           D.        "Business" means the oil and gas well workover, completion,
                     plugging,   abandonment   and  related  oil  and  gas  well
                     servicing  business  currently  conducted  by the Seller in
                     Artesia, New Mexico and Beeville, Texas.

           E.        "Buyer"  means  BASIC  ENERGY  SERVICES,  INC.,  a Delaware
                     Corporation ("Basic").

           F.        "Closing"  means  the  actions  to be  carried  out  on the
                     Closing Date as provided herein.

           G.        "Closing  Date"  means the date and time set for Closing as
                     provided herein.

           H.        "Contracts"   means  the  verbal  and   written   (if  any)
                     agreements,  contracts,  contract rights and other evidence
                     of the same,  including work in process associated with the
                     Business,  subject  to  all  liabilities,  obligations  and
                     requirements  to perform  and  complete  the same after the
                     Effective Date, as more  particularly  described in EXHIBIT
                     "A"  attached  hereto  and  incorporated   herein  for  all
                     purposes by this  specific  reference;  all of which to the
                     extent   described   on  EXHIBIT  "A"  and  to  the  extent
                     assignable shall be transferred to and assumed by the Buyer
                     as of the Effective Date.

           I.        "Effective  Date"  means  December  31,  2001 at 5:00 p.m.,
                     Central Standard Time.

           J.        "Excluded  Assets" means:  (1) all land,  real property and
                     buildings,  as  well  as  all  fixtures,  improvements  and
                     moveable  personal  property  attached  thereto;   (2)  all
                     accounts  receivable  and any other rights of the Seller to
                     receive  payment for services  rendered by the Seller prior
                     to  the  Effective  Date;  (3)  all  cash, cash



                                      -2-



                     accounts,  checking and savings accounts,  cash equivalents
                     and petty cash of the Seller prior to the  Effective  Date;
                     (4)  any  and  all  other  receivables,  payables,  prepaid
                     expenses, bonds, deposits and any other intangible items of
                     a  similar  nature  owned  by the  Seller  and  used in the
                     Business;  (5) any assets in the  possession  of the Seller
                     owned by  third  parties;  (6) the  membership  and  equity
                     ownership  interests  in and of the Seller and all  limited
                     liability company  organizational  documents  governing the
                     formation and  organization  of the Seller;  (7) all rights
                     and claims in respect of any unpaid proceeds to be received
                     pursuant to the Contracts  prior to the Effective Date; (8)
                     all claims or causes of action of the Seller arising at any
                     time prior to the Effective  Date; (9) all data that cannot
                     be  disclosed  or  assigned  to the  Buyer as a  result  of
                     confidentiality  arrangements or licenses under  agreements
                     with other persons and the Seller  (provided that such data
                     does  not  affect  in  any  material  respect  the  use  or
                     operation  of the  Assets by the  Buyer);  (10) all  notes,
                     memoranda, agreements or reports of any consultant or other
                     professional  employed by the Seller in connection with the
                     sale of the Assets; (11) all agreements, communications and
                     correspondence between the Seller and Friedman,  Billings &
                     Ramsey,    Inc.    and    their    respective    employees,
                     representatives  or  agents  relating  to the  transactions
                     contemplated   by  this   Agreement;   (12)  all   internal
                     correspondence   and  communications  of  the  Seller  with
                     respect  to  the  sale  of the  Assets  hereunder  and  the
                     transactions  contemplated  herein; (13) all bids submitted
                     by prospective Buyers of the Assets; and (14) all files and
                     documents   of  the   Seller   that  are   subject   to  an
                     attorney-client privilege related to litigation.

           K.        "Party" and  "Parties"  mean  Basic,  Buyer,  Pinnacle  and
                     Seller,  individually or  collectively,  but do not include
                     Pedco and Warren.

           L.        "Pedco"  means  PETROLEUM  DEVELOPMENT  CORPORATION,  a New
                     Mexico  Corporation,  including its wholly owned subsidiary
                     PEDECO, INC., a Texas Corporation, which is an equity owner
                     and the Managing Member of Pinnacle.

           M.        "Pinnacle" means CJS PINNACLE  PETROLEUM  SERVICES,  LLC, a
                     Texas Limited Liability Company (the "Seller").

           N.        "Purchase  Price" shall have the meaning more  particularly
                     set forth in Article IV hereof.

           O.        "Seller" means CJS PINNACLE SERVICES,  LLC, a Texas Limited
                     Liability Company ("Pinnacle").

           P.        "Service  Credit"  shall  have  the  meaning  set  forth in
                     Article IV hereof.

           Q.        "Warren"   means  WARREN   RESOURCES,   INC.,  a  New  York
                     Corporation, including its wholly owned entity TEXAS WARREN
                     RESOURCES, LLC, a



                                      -3-


                     Texas limited liability  company,  which is an equity owner
                     and non-managing member of Pinnacle.


                                   ARTICLE II
                                   ----------

                      CONDITION OF ASSETS AND DUE DILIGENCE
                      -------------------------------------

           The  Parties  agree  that  the  Buyer  has  been  afforded   adequate
opportunity to inspect the Assets and the Business of Pinnacle during normal and
regular  business  hours.  By  accepting  the Assets from the Seller,  the Buyer
hereby  acknowledges  that it has inspected and examined the Assets and is fully
acquainted with the condition thereof.  The Buyer specifically  acknowledges and
agrees that it has had the  opportunity to ask questions of and receive  answers
from the Seller  regarding the Assets and the overall  operation of the Business
by the  Seller,  and the  Buyer is fully  acquainted  with the  same.  The Buyer
accepts the Assets "as is",  "where is",  "with all faults" and in their present
condition;  and acknowledges  that, except for the express  representations  and
warranties of the Seller in this  Agreement,  the Seller has made no warranties,
representations  and covenants of any kind or type,  either  express or implied,
with respect to the operating or useful  condition  thereof or the fitness for a
particular purpose thereof in connection with the Business.

                                   ARTICLE III
                                   -----------

                        TRANSFER OF ASSETS AND CONTRACTS
                        --------------------------------

           At the  Closing,  the  Seller  agrees to and shall  execute a Bill of
Sale,  Transfer and Assignment  conveying all of the Seller's  right,  title and
interest  in and to the Assets to and in favor of the  Buyer,  free and clear of
Liens, except for the Permitted Encumbrances, both as hereinafter defined, which
Bill of Sale,  Transfer and Assignment shall be in a form substantially  similar
to EXHIBIT "B" attached hereto and incorporated  herein for all purposes by this
specific reference. In return for the transfer, conveyance and assignment by the
Seller to the Buyer of all the Seller's right,  title and interest in and to the
Assets,  the Buyer  agrees to and  shall  pay the  Purchase  Price and issue the
Service Credit in the manner provided for elsewhere herein.

           The  Parties  agree to execute  any and all  additional  instruments,
documents  or  other  agreements  that  may be  deemed  necessary,  required  or
advisable  in order to fully  effectuate  the  transfer  of the Assets  from the
Seller to the Buyer, as well as otherwise comply with the terms,  conditions and
provisions contained herein.



                                      -4-





                                   ARTICLE IV
                                   ----------

                        PURCHASE PRICE AND PAYMENT TERMS
                        --------------------------------

           As  consideration  and  payment  for  the  conveyance,  transfer  and
assignment  of all the Seller's  right,  title and  interest in the Assets,  the
Buyer  agrees to and shall pay the Seller the sum of  $4,200,000.00  in cash and
service credit as the Purchase Price (the "Purchase Price"),  upon the following
terms and conditions:

                     A. The amount of  $3,700,000.00  shall be paid by the Buyer
           to the Seller at the Closing in immediately verifiable funds, such as
           a cashier's check, bank draft or wire transfer.

                     B.  The  remaining  balance  of the  Purchase  Price in the
           amount of $500,000.00,  shall serve as  consideration  payable to the
           Seller  by the  Buyer  in the  form of a credit  for  services  to be
           rendered  by the Buyer for the  Seller in the  future  (the  "Service
           Credit").  The Service Credit in the amount of  $500,000.00  shall be
           established  as an account and credit on the books and records of the
           Buyer for the  benefit  of the  Seller  for  future  oil and gas well
           workovers, completions, swabbing operations, plugging and abandonment
           operations  or any other  related  well  servicing  operations  to be
           performed  by Basic at the  request  of Pedco  and/or  Warren  within
           thirty-six  (36) months after the Closing  Date.  The Service  Credit
           shall  continue  in  effect  after the  Closing  Date for a period of
           thirty-six  (36) months or until the date the Service Credit is fully
           used by Pedco and Warren,  whichever  shall first occur.  The Service
           Credit  shall be  subject  to the  following  terms,  conditions  and
           provisions:

                               1. During the period of time the  Service  Credit
                     is in effect,  Basic  agrees  that if Pedco  and/or  Warren
                     propose(s) to conduct any well servicing  operations within
                     the  geographical  area served by any of Basic's  currently
                     existing or future offices or service  locations  ("Basic's
                     Service Areas"),  then Basic shall provide such services to
                     Pedco and Warren on a  preferential  basis at Basic's  then
                     current rate schedule and pricing policies in effect at the
                     applicable  local  office or service  location  at the best
                     rates Basic charges its most significant customers.

                               2.  Pedco  and/or  Warren  may  offset  up to and
                     receive a credit for a maximum of  $25,000.00  per month of
                     billings and invoices for services and products provided by
                     Basic  during the  preceding  calendar  month  against  the
                     Service Credit. During the first eighteen (18) months after
                     the Closing Date, the amount of the Service Credit shall be
                     limited to $25,000  per  month.  During the final  eighteen
                     (18) months,  the amount of the unused Service Credit shall
                     be $25,000 per month plus a 50% discount  (for  application
                     against the unused  balance of the  Service  Credit) on any
                     amounts  in excess  of  $25,000  per  month  until the full
                     amount of the Service  Credit is used or the same  expires,
                     as provided above. Any costs,  expenses or charges incurred
                     by Basic for services,  products,  materials or other items
                     provided by third parties at the request of either Pedco or


                                      -5-


                     Warren that are included in Basic's  invoices  shall not be
                     credited against,  offset or reduce the Service Credit, and
                     shall be paid by Pedco or Warren as provided below.

                               3. Basic will  respond to a request for  services
                     within  Basic's  Service  Areas  from  Pedco or  Warren  as
                     quickly as possible  and on a  preferential  basis over and
                     above any third parties. Basic agrees to and shall guaranty
                     oil and gas well  services  and rig  availability  within a
                     maximum  of five  (5)  business  days  after  receipt  of a
                     request for any such  services  from Warren or Pedco at any
                     of Basic's Service Areas.

                               4.  Basic  agrees to and shall  provide a monthly
                     accounting to Warren within fifteen (15) days after the end
                     of each calendar  month  reflecting  the declining  balance
                     amount of the Service Credit used by Warren or Pedco during
                     the  preceding  calendar  month.  Upon request by Warren or
                     Pedco,   Basic  will  provide   copies  of  all  supporting
                     invoices, statements and billings underlying its accounting
                     for the Service Credit.

                               5. Subject to the Service Credit, Warren will pay
                     Basic for all services  performed  and  materials  supplied
                     that  are not  covered  by the  Service  Credit,  including
                     applicable  third party  services,  within thirty (30) days
                     after receipt of invoices from Basic  reflecting  the type,
                     quantity and amount of such services rendered and materials
                     supplied,  together with a photocopy of the actual invoice,
                     statement  or  other   billing   notice   prepared  by  any
                     applicable third parties.

                     C. The Seller and Buyer hereby  allocate the Purchase Price
           among the Assets and the  non-competition  covenant  of Seller as set
           forth in EXHIBIT "C" attached  hereto,  and agree to be bound by such
           allocation for federal income tax and all other purposes  incident to
           this Agreement.


                                    ARTICLE V
                                    ---------

                          LIENS, ENCUMBRANCES AND TAXES
                          -----------------------------

           A. Liens and  Encumbrances.  The Seller has  previously  disclosed in
writing to the Buyer and the Buyer is aware of the  existence  of certain  liens
and  encumbrances  covering and security  interests  in certain  specific  items
comprising the Assets (the "Liens").  The Buyer shall,  at the Closing,  pay the
applicable amounts of any of the Liens directly to the applicable lienholder and
reduce the Purchase Price by such amounts. Unless otherwise described above, the
Seller  represents and warrants to the Buyer that there are no other  mortgages,
deeds of trust, liens, encumbrances, debts, liabilities or obligations covering,
burdening or encumbering  the Assets,  other than: (1) liens for taxes and other
governmental  charges  or  levies  which  are  not  yet  due  and  payable;  (2)
mechanics', workmen's, warehousemen's, vendors' or carriers' liens arising under
applicable  law in the ordinary  course of business and securing  sums which are
not yet due and



                                      -6-


payable (or deposits or pledges to obtain the release of any such liens); or (3)
rights reserved to or vested in any municipality or other governmental authority
to control or  regulate  the Assets  (any such liens  specified  in clauses  (1)
through (3) above being  hereinafter  referred to as "Permitted  Encumbrances").
The  Permitted  Encumbrances  shall not be a  deduction  against  or reduce  the
Purchase Price.

           B. Liabilities.  The Seller represents and warrants to the Buyer that
the Seller has not performed, caused to be performed or hired any third party to
perform  any labor or work upon the Assets  within the past 180 days;  or if the
same has been  performed,  then all charges and amounts  incurred in  connection
therewith will be paid in full and discharged on and as of the Closing Date. The
Seller also  represents  and warrants that on and as of the  Effective  Date, no
person or entity who may have performed  labor,  supplied  materials or rendered
services in connection with improving or maintaining  the Assets,  has the right
to  claim  a lien  on the  Assets  pursuant  to the  applicable  Mechanics'  and
Materialmen's  Lien Acts or any other  provisions  or laws of the  States of New
Mexico and Texas.

           C. Taxes.  The Seller  represents  and warrants to the Buyer that, on
and as of the Effective Date, all ad-valorem or other taxes assessed against the
Assets  have  been or will be paid in full for the  calendar  year  2001 and all
prior years,  and do not  constitute a lien against the same. In addition and to
the best of its knowledge,  information and belief, the Seller represents to the
Buyer that all federal and state income, gross receipts, sales, social security,
self employment, state and federal unemployment and other taxes assessed against
and payable on or with respect to all employees'  wages and income of the Seller
have been paid or provided  for, or that none are due. The Seller  agrees to and
shall retain complete responsibility for, pay and discharge any and all taxes of
the kind and type  described  above  that are or may in the  future be  assessed
against or on or with  respect to any and all Business  activities  conducted by
the Seller prior to the Effective Date.


                                   ARTICLE VI
                                   ----------

                               COSTS AND EXPENSES
                               ------------------

           A. Insurance.  The Seller represents and warrants that the Assets are
currently  insured with property  damage,  liability,  workers  compensation and
various other forms of insurance coverage. The Parties specifically  acknowledge
and agree that the Seller may terminate  such insurance  policies  maintained by
the Seller on and as of the Closing Date. In addition,  the Parties specifically
acknowledge  and agree that the Seller  shall be  entitled to receive and retain
any refunds or rebates from any of its existing insurance companies with respect
to prepaid  but unused  premiums.  In the event any such  refunds  for the early
termination  of existing  insurance  policies or  coverages  are received by the
Buyer from and after the Closing Date, the Buyer agrees to and shall forward all
checks representing any such refunds or rebates to the Seller.



                                      -7-


           B. Employees Wages and Salaries.  The Seller shall be responsible for
and hereby retains liability for and agrees to pay all wages, salaries and other
forms of compensation  due and payable to all existing  employees of the Seller,
including  all federal  and state  income,  social  security,  self  employment,
unemployment and other taxes of any kind or type assessed against and payable on
with respect to such  employees  wages up to and through the Closing Date.  Upon
Closing,  the Buyer  agrees to pay all  salaries  and wages  accruing  after the
Closing Date of any former employees that are hired by the Buyer,  including all
taxes of the kind and type  described  above that may be  assessed  against  the
same, and shall hold the Seller harmless from and against the same.

           C. Certain  Closing and Related Costs.  In connection with and at the
Closing of the transactions contemplated by this Agreement, the Seller and Buyer
agree to pay their own legal document preparation or attorneys' fees incurred in
connection  herewith.  The Buyer also  specifically  agrees to and shall pay the
cost of any recording or filing fees.


                                   ARTICLE VII
                                   -----------

                                    EMPLOYEES
                                    ---------

           The Seller will use its  reasonable  best  efforts to make all of its
employees  available for hire and retention by the Buyer after the Closing Date,
and the Buyer agrees and shall hire all of such  employees on an "at will" basis
only  (except for Julian  Carrillo,  as  hereinafter  provided) on and as of the
Closing  Date,  subject  only to the  Buyer's  satisfaction,  in its  reasonable
discretion,  of the employees  qualifications  for employment  with the Buyer in
accordance with its standard employment practices and procedures, and the mutual
agreement  between  such  employees  and Buyer as to their  future  compensation
levels or benefits.  The Buyer shall have no  liability or incur any  obligation
with  respect to any  employee  benefits of any  employees  prior to the Closing
Date,  except those benefits that accrue to such employees  employment  with the
Buyer on and after the Closing Date.  The Seller shall  cooperate with the Buyer
in  connection  with any offer of  employment  by the Buyer to the employees and
will use its best efforts to cause its existing  employees to accept any and all
such employment offers. Any and all employees who are employed by the Buyer from
and after the  Closing  Date shall be eligible  for all of the  Buyer's  current
benefit programs as of the Closing Date (subject only to any applicable  periods
that cannot be waived by the benefit plan documents),  and the length of service
of such  employees with the Seller will be considered in their  eligibility  for
the benefit programs of the Buyer.


                                  ARTICLE VIII
                                  ------------

                            CONTRACTS AND AGREEMENTS
                            ------------------------

           The Buyer  acknowledges  and agrees that the Seller is a party to the
Contracts  (both verbal and written)  that are necessary in order for the Seller
to operate the Assets and to carry on the Business in its ordinary course. As of
the Closing Date,  the Buyer agrees to and shall



                                      -8-


assume  responsibility for and continue performing in accordance with all of the
Seller's  existing  obligations  and  responsibilities  under any and all of the
Contracts,  save and except any such Contracts which are  non-assignable  or for
which the Seller is unable to procure requisite  consents to assignment prior to
the Closing.  The Buyer shall  thereafter do any and all things and take any and
all steps  required to be done and performed  under the terms and  conditions of
the  assigned  Contracts,  and shall hold the Seller  harmless  from any and all
loss,  liability  or expense  reasonably  incurred  by the Seller in  connection
therewith,   including   attorney's   fees,  with  respect  to  obligations  and
responsibilities  accruing from and after the Closing Date.  The Seller  retains
liability for all obligations and responsibilities accruing prior to the Closing
Date under the  Contracts and shall  indemnify and hold the Buyer  harmless from
any and all loss,  liability  or  expense  reasonably  incurred  by the Buyer in
connection therewith, including attorney's fees.


                                   ARTICLE IX
                                   ----------

                    CLOSING, CLOSING DATE AND EFFECTIVE DATE
                    ----------------------------------------

           A. The Closing shall take place at the offices of the Buyer,  located
at 406 North Big Spring in  Midland,  Texas on or before  February  15,  2002 at
10:00 a.m.,  Central  Standard Time (the "Closing  Date").  The Closing Date and
place of Closing may be postponed or changed by mutual written  agreement of the
Parties.

           B.  The  Effective  Date  of all  transactions  contemplated  by this
Agreement and all exhibits, documents,  agreements,  contracts,  assignments and
other  instruments  that shall be executed by the Parties in connection with the
Closing shall be December 31, 2001 at 5:00 p.m. Central Standard Time.

           C. At the Closing,  the Seller  shall  transfer and assign the Assets
and  Contracts  to  the  Buyer,  and  otherwise  comply  with  the  conveyancing
requirements  contained  herein,  by  executing  the Bill of Sale,  Transfer and
Assignment in a form substantially  similar to EXHIBIT "B" attached hereto. Such
Bill of Sale,  Transfer and Assignment shall convey the Assets free and clear of
all  Liens,  other  than the  Permitted  Encumbrances.  In  addition  or  unless
otherwise provided for herein, the Seller shall cause all appropriate parties to
execute, file and deliver to the Buyer full and complete releases of all Liens.

           D. At the Closing,  the Buyer shall pay the sum of $3,700,000.00  and
issue the Service  Credit in the amount of $500,000.00 as the Purchase Price for
the Assets in the manner provided for elsewhere herein.

           E. At the Closing, the Seller and the Buyer shall execute and deliver
a  non-competition  agreement  that  is  substantially  identical  in  form  and
substance to that attached hereto as Exhibit "D".

           F. At the Closing, the Parties agree to and shall execute and deliver
among  themselves all documents,  instruments,  agreements and original forms of
exhibits required by or



                                      -9-


attached to this Agreement, as well as any and all other instruments,  documents
or agreements  deemed  necessary or advisable to fully  effectuate the intent of
this Agreement and the transactions contemplated hereby. In addition, the Seller
and the  Buyer  agree to and shall pay in full and  discharge  their  respective
portions  of any and all  costs  and  expenses  arising  out of or  incurred  in
connection with the transactions contemplated by this Agreement.

           G. By their execution  hereof and their  respective  actions taken at
the Closing, the Parties hereby verify and confirm to each other that, on and as
of the Effective Date and the Closing: (i) the transactions contemplated by this
Agreement  have been duly  approved  by the  shareholders,  officers  directors,
members and/or  managers of each of the Parties;  (ii) all  representations  and
warranties  of the Parties  are true and  correct;  and (iii) the  Parties  have
complied with all applicable  covenants  contained in this Agreement that are to
be performed at or prior to the Closing.


                                    ARTICLE X
                                    ---------

                          POSSESSION AND RESPONSIBILITY
                          -----------------------------

           On the Closing Date, the Seller shall surrender and deliver and Buyer
shall be  entitled  to  possession  of the  Assets and  Contracts  that are more
particularly  described  herein;  at which  time the  Buyer  agrees to and shall
assume full and complete  responsibility for and shall perform and discharge the
same in accordance with the terms, conditions and provisions of this Agreement.


                                   ARTICLE XI
                                   ----------

                                  RISK OF LOSS
                                  ------------

           Prior to the Closing  Date,  the risk of loss or damage to the Assets
shall remain with and be on the Seller.  Any loss or damage thereto which is not
covered by insurance shall be the sole responsibility of Seller, unless the same
is caused by the negligence or  intentional  acts of the Buyer or its agents and
employees.  On and after  the  Closing  Date,  the risk of loss or damage to the
Assets  shall be assumed by and upon the  Buyer.  The Buyer  agrees to and shall
indemnify  and hold the Seller  harmless  from any and all loss or damage to the
Assets on and after the Closing Date.


                                      -10-


                                   ARTICLE XII
                                   -----------

                           INDEMNIFICATION/LIABILITIES
                           ---------------------------

           Unless  otherwise  provided  for  herein,  the Buyer  agrees that the
Seller shall not be responsible for any debts, obligations or liabilities of any
kind or type  incurred  by the  Buyer  in  connection  with  the  ownership  and
operation  of the  Assets  from and after the  Closing  Date  (collectively  the
"Buyer's Liabilities"),  including, without limitation: (1) claims for injury to
a person  or  property;  (2) any  federal,  state or local  income  or other tax
payable with respect to the  Business,  Assets,  properties or operations of the
Seller,  including  any  sales  or  other  transfer  taxes  resulting  from  the
consummation of this transaction, which will be the responsibility of the Buyer;
(3) liabilities or obligations  arising after the Closing Date or as a result of
the Closing to any employees,  agents or  independent  contractors of the Buyer,
including those previously  employed by the Seller who are employed by the Buyer
following the Closing Date; and (4) any and all other  obligations of the Buyer,
including those assumed by the Buyer in this  Agreement.  In the event any claim
is made by any person against the Seller  relating to the ownership or operation
of the Assets for periods from and after the Closing  Date,  or regarding any of
the Buyer's  Liabilities,  then the Buyer shall  defend the Seller  against that
claim and hold the Seller harmless from any and all loss,  liability and expense
reasonably incurred in connection therewith, including attorneys' fees.

           Unless  otherwise  provided  for herein,  the Seller  agrees that the
Buyer  shall  not be  responsible  for any  debts,  obligations  or  liabilities
incurred by the Seller in  connection  with the  ownership  and operation of the
Assets  prior to the Closing Date  (collectively  the  "Retained  Liabilities"),
including,  without  limitation:  (1) claims for injury to a person or property;
(2) any federal,  state or local income or other tax payable with respect to the
Business,  Assets,  properties or operations of the Seller,  save and except any
sales  or  other  transfer  taxes  resulting  from  the   consummation  of  this
transaction,  which will be the  responsibility of the Buyer; (3) liabilities or
obligations  arising  prior to the Closing Date or as a result of the Closing to
any employees,  agents or independent  contractors of the Seller, whether or not
employed  by the Buyer  following  the Closing  Date;  and (4) any and all other
obligations  of the Seller that are not  expressly  assumed by the Buyer in this
Agreement.  In the event any claim is made by any person  against the Buyer as a
result of or arising out of the  Seller's  ownership  or operation of the Assets
prior to the Closing Date, or regarding  any of the Retained  Liabilities,  then
the Seller shall defend the Buyer against that claim and hold the Buyer harmless
from any and all loss,  liability and expense reasonably  incurred in connection
therewith, including attorneys' fees.

           The  indemnities  of the Parties under this ARTICLE XII shall survive
the Closing without time limitation.


                                      -11-


                                  ARTICLE XIII
                                  ------------

               ENVIRONMENTAL MATTERS AND LIMITATION OF WARRANTIES
               --------------------------------------------------

           A. To its best  knowledge,  information  and  belief,  the Seller has
obtained all authorizations which are required in connection with the conduct of
the  Business  under  regulations  relating to pollution  or  protection  of the
environment,  including regulations relating to emissions,  discharges, releases
or  threatened  releases  of  pollutants,  contaminants,   chemicals,  petroleum
products, gases or industrial,  toxic or hazardous substances or wastes into the
environment   (including   without   limitation   ambient  air,  surface  water,
groundwater  or land),  or otherwise  relating to the  manufacture,  processing,
distribution,  use,  treatment,  storage,  disposal,  transport  or  handling of
pollutants,  contaminants,  chemicals,  petroleum products, gases or industrial,
toxic or hazardous substances or wastes (collectively,  "Hazardous  Materials").
To its best  knowledge,  information  and  belief,  the Seller is unaware of any
hazardous substance,  hazardous material or toxic substance,  as those terms are
more particularly defined below, that may exist on or with respect to the Assets
that are the  subject  matter of this  Agreement.  Subject to and except for the
express  representations  and  warranties of the Seller in this  Agreement,  the
Buyer  acknowledges and agrees that it has inspected the Assets and is accepting
the same in their present state and condition "as is",  "where is" and "with all
faults".  The Buyer agrees to and shall  indemnify and hold the Seller  harmless
from and against any and all liability including all foreseeable and enforceable
consequential   damages,   directly  or  indirectly  arising  out  of  the  use,
generation, storage or disposal of Hazardous Materials on or with respect to the
Assets from and after the Closing Date, including,  without limitation, the cost
of any required and necessary repair,  response cost, clean-up or detoxification
costs, and preparation of any closure or other required plans to the full extent
that such action is attributable  directly or indirectly to the presence or use,
generation,  storage,  release,  threatened  release or  disposal  of  Hazardous
Materials on the Assets from and after the Closing  Date.  The Seller  agrees to
and shall  indemnify  and hold the Buyer  harmless  from and against any and all
liability  including all  foreseeable  and  enforceable  consequential  damages,
directly or indirectly arising out of the use,  generation,  storage or disposal
of  Hazardous  Materials  on or with  respect to the Assets prior to the Closing
Date,  including,  without  limitation,  the cost of any required and  necessary
repair,  response cost, clean-up or detoxification costs, and preparation of any
closure  or  other  required  plans to the  full  extent  that  such  action  is
attributable directly or indirectly to the presence or use, generation, storage,
release,  threatened  release or disposal of  Hazardous  Materials on the Assets
prior to the Closing Date.  The Parties'  obligations  pursuant to the foregoing
indemnification  clauses shall survive the Closing without time limitation.  The
term Hazardous  Materials as used above,  shall include,  but not be limited to:
flammable explosives,  asbestos,  radioactive materials, hazardous wastes, toxic
substances  and related  injurious  materials,  whether  injurious by themselves
alone or in combination  with other  materials.  Hazardous  Materials shall also
include,  but not be limited to substances  defined as  "Hazardous  Substances",
"Hazardous   Material"  or  "Toxic   Substances"   in  the:  (1)   Comprehensive
Environmental  Response,  Compensation  and  Liability  Act of 1980,  as amended
("CERCLA"),   42  U.S.C.   Section  9601,  et  seq.;  (2)  Hazardous   Materials
Transportation Act, 49 U.S.C.  Section 1801, et seq.; (3) Resource  Conservation
Recovery Act ("RCRA"),  42 U.S.C.  Section 6901, et seq.; (4) any applicable New
Mexico  or  Texas  statutes;  and (5)  any  rules  or  regulations  adopted  and
publications promulgated pursuant to



                                      -12-


the above described federal and state laws, as well as any other laws associated
therewith or related thereto.  Such indemnification shall cover and include, but
not be limited to any state or federal investigation, proceeding, administrative
action or lawsuit now  existing or that may  hereafter  arise in the future with
respect to any or all  business  activities  conducted on or with respect to the
Assets.

           B. The Assets that are the subject  matter of this Agreement and that
will be  transferred  by the Seller to the Buyer are being  transferred  without
recourse,  covenant  or  warranty of any kind,  express,  implied or  statutory,
unless  otherwise  provided for herein.  To the extent required to be operative,
the  disclaimers  of  certain   warranties  as  to  the  personal  property  and
improvements are deemed to be  "CONSPICUOUS"  disclaimers for the purpose of any
applicable  law,  rule,  regulation  or order.  As to the Assets and any and all
related   personal   property  and   improvements,   the  Seller  is  making  no
representation  or  warranty  whatsoever,   express  or  implied,  beyond  those
expressly  given in this  Agreement,  and the Buyer agrees that,  except for the
express  representations  and warranties of the Seller in this Agreement,  it is
acquiring the Assets,  including all related personal property and improvements,
"as is",  "where is" and "with all faults".  WITHOUT  LIMITING THE GENERALITY OF
THE IMMEDIATELY FOREGOING, EXCEPT FOR THE EXPRESS REPRESENTATIONS AND WARRANTIES
OF THE SELLER IN THIS Agreement,  THE SELLER HEREBY: (A) EXPRESSLY DISCLAIMS AND
NEGATES ANY  REPRESENTATION OR WARRANTY,  EXPRESS OR IMPLIED,  AT COMMON LAW, BY
STATUTE  OR  OTHERWISE,   RELATING  TO  THE  CONDITION  OF  THE  ASSETS  OR  THE
ABOVE-DESCRIBED  PROPERTY, AND THE SELLER HEREBY EXPRESSLY DISCLAIMS AND NEGATES
ANY IMPLIED OR EXPRESS  WARRANTY OF  MERCHANTABILITY,  FITNESS FOR A  PARTICULAR
PURPOSE OR  CONFORMITY  TO MODELS OR SAMPLES OF  MATERIALS;  AND (B) NEGATES ANY
RIGHTS OF THE BUYER  UNDER ANY  STATUTES  OR ANY CLAIMS BY THE BUYER FOR DAMAGES
BECAUSE OF DEFECTS,  WHETHER  KNOWN OR UNKNOWN AND  WHETHER  RESULTING  FROM ANY
CAUSE;  IT BEING THE  INTENTION  OF THE  SELLER AND BUYER  THAT,  EXCEPT FOR THE
EXPRESS  REPRESENTATIONS  AND  WARRANTIES OF THE SELLER IN THIS  Agreement,  THE
ASSETS AND THE ABOVE-DESCRIBED PROPERTY ARE BEING ACCEPTED BY THE BUYER IN THEIR
PRESENT  CONDITION AND STATE OF REPAIR.  WITHOUT  LIMITING THE ABOVE,  THE BUYER
HEREBY  SPECIFICALLY  WAIVES ANY AND ALL  RIGHTS TO RECOVER  FROM THE SELLER AND
FOREVER  RELEASES AND  DISCHARGES  THE SELLER FROM ANY AND ALL DAMAGES,  CLAIMS,
LOSSES,  LIABILITIES,  PENALTIES,  FINES, LIENS,  JUDGEMENTS,  COSTS OR EXPENSES
WHATSOEVER,  INCLUDING  ATTORNEYS FEES AND ASSOCIATED  COSTS,  WHETHER DIRECT OR
INDIRECT,  KNOWN OR UNKNOWN,  FORESEEN OR UNFORESEEN AND WHETHER  RESULTING FROM
ANY  CAUSE  THAT MAY ARISE ON  ACCOUNT  OF OR IN ANY WAY BE  CONNECTED  WITH THE
PHYSICAL CONDITION OF THE ASSETS OR THE ABOVE-DESCRIBED  PROPERTY, OR ANY LAW OR
REGULATION  APPLICABLE  THERETO,  SAVE AND EXCEPT TO THE EXTENT  CONSTITUTING OR
ARISING FROM A BREACH OF THE SELLER'S  REPRESENTATIONS  AND  WARRANTIES  IN THIS
AGREEMENT.


                                      -13-


           C. THE BUYER'S  RIGHTS AND REMEDIES WITH RESPECT TO THE  TRANSACTIONS
CONTEMPLATED  HEREUNDER  AND WITH RESPECT TO THE  SELLER'S  ACTIONS OR PRACTICES
WITH RESPECT TO THE  TRANSACTIONS  CONTEMPLATED  HEREUNDER  SHALL BE GOVERNED BY
LEGAL  PRINCIPLES  OTHER THAN THE TEXAS  DECEPTIVE  TRADE  PRACTICES  - CONSUMER
PROTECTION  ACT, TEX. BUS. & COM. CODE ANN.  SS.17.41 ET SEQ. (THE "DTPA").  THE
BUYER HEREBY WAIVES THE  APPLICABILITY  OF THE DTPA TO THIS  TRANSACTION AND ANY
AND ALL RIGHTS,  DUTIES OR REMEDIES THAT MIGHT BE IMPOSED BY THE DTPA. THE BUYER
ACKNOWLEDGES  THAT IT IS PURCHASING  THE ASSETS FOR  COMMERCIAL OR BUSINESS USE.
THE BUYER  FURTHER  ACKNOWLEDGES  THAT IT:  (1) HAS ASSETS OF, OR IF OWNED BY AN
ENTITY  HAVING  ASSETS  OF  $25,000,000  OR MORE  ACCORDING  TO ITS MOST  RECENT
FINANCIAL  STATEMENT  PREPARED IN  ACCORDANCE  WITH GAAP;  (2) HAS KNOWLEDGE AND
EXPERIENCE  IN  FINANCIAL  AND  BUSINESS  MATTERS THAT ENABLE IT TO EVALUATE THE
MERITS  AND  THE  RISKS  OF A  TRANSACTION  SUCH  AS  THIS;  AND (3) IS NOT IN A
SIGNIFICANTLY DISPARATE BARGAINING POSITION WITH THE SELLER.


                                   ARTICLE XIV
                                   -----------

             REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE SELLER
             -------------------------------------------------------

           The Seller  hereby  represents,  warrants and covenants to the Buyer,
which  representations,  warranties and covenants shall survive the Closing,  as
follows:

           A.        Power  and  Authority.   The  Seller  has  full  power  and
                     authority   to  enter  into,   execute  and  perform   this
                     Agreement; to make any representation,  warranty,  covenant
                     or agreement  contained  herein;  to perform  every act and
                     execute and deliver any and all  documents,  instruments or
                     agreements  necessary  or  appropriate  to  consummate  the
                     transactions contemplated by this Agreement. All actions on
                     the  part  of  the  Seller   necessary  to  consummate  the
                     transactions  contemplated by this Agreement have been duly
                     taken  as  required  by   applicable   law,  the  governing
                     documents of the Seller and any applicable agreements. This
                     Agreement  has been,  and other  agreements,  documents and
                     instruments  required to be executed  and  delivered by the
                     Seller in accordance with the provisions hereof,  have been
                     or will be duly  executed  and  delivered by the Seller and
                     constitute (or will at Closing constitute) the legal, valid
                     and binding obligations of the Seller,  enforceable against
                     the Seller in accordance with their terms.

           B.        Organization.  The Seller  represents to the Buyer that the
                     Seller is a duly  organized  and validly  existing  limited
                     liability  company under the laws of the State of Texas, in
                     good standing in all  applicable  jurisdictions,  with full
                     power and



                                      -14-


                     authority  to enter into this  Agreement  and carry out the
                     terms, conditions and provisions hereof.

           C.        Ownership  of Property.  The Seller has and can convey,  at
                     the Closing, good, merchantable and marketable title to the
                     Assets,  free and  clear  of all  Liens,  unless  otherwise
                     provided for herein and authorized  hereby;  and the Seller
                     is duly authorized to sell,  transfer and assign all of the
                     same to the Buyer.

           D.        Litigation. To the Seller's best information, knowledge and
                     belief, there is no litigation,  proceeding or governmental
                     investigation   pending   or   threatened   in  any  court,
                     arbitration  board,   administrative   agency  or  tribunal
                     against or  relating  to the Seller  that would  prevent or
                     impede the  consummation  of this  Agreement by the Seller.
                     The Seller does not know of and has no reasonable ground to
                     know of any basis for any such  litigation,  proceeding  or
                     investigation,  and the execution and  performance  of this
                     Agreement  by it will not result in a default  with respect
                     to any judgment,  order, writ, injunction,  decree, rule or
                     regulation  of  any  applicable  court  or   administrative
                     agency.

           E.        Liabilities.  Unless otherwise authorized hereby and to the
                     Seller's    knowledge,    information   and   belief,   all
                     liabilities,  trade  creditors'  bills,  suppliers'  bills,
                     advertising  fees,  vendors'  charges and license fees have
                     been  paid or  provided  for,  or  otherwise  disclosed  in
                     writing to the Buyer, and there is no threat by any person,
                     including any governmental  body, to impose a lien upon the
                     Assets, or any portion thereof for any purpose.

           F.        Insurance.  To its best knowledge,  information and belief,
                     the  Seller  has had in effect  and will keep in full force
                     and  effect  prior to the  Closing  Date of this  Agreement
                     adequate  insurance  policies and bonds covering the Assets
                     issued by financially  responsible insurers at no less than
                     existing levels of coverage.

           G.        Liens  and   Encumbrances.   To  the  Seller's   knowledge,
                     information  and belief or except to the extent  authorized
                     hereby or  referred  to herein and on and as of the Closing
                     Date,  there  will be no  Liens,  encumbrances,  mortgages,
                     deeds  of  trust  or  security  interests  in  and  to,  or
                     affecting  title to the  Assets,  and no person will have a
                     right to claim a lien upon the same.

           H.        Leases,  Contracts  and Other  Agreements.  The  Seller has
                     incurred no liability,  made no contract or agreement,  nor
                     entered  into any written or oral  arrangements  whatsoever
                     which would  impose or result in any  obligations  upon the
                     Buyer as a result of or at the  Closing of this  Agreement,
                     except for the Contracts which will be specifically assumed
                     and performed by the Buyer  pursuant to this  Agreement on,
                     as of and  after  the  Closing  Date.  The  Seller  has not
                     entered into any agreement or agreements, either written or
                     oral,  under which it is or could be  obligated  to sell or
                     transfer  all or any portion of the Assets or rights  under
                     this



                                      -15-


                     Agreement,  and agrees not to enter into or  negotiate  any
                     such agreement or agreements.

           I.        Taxes.  To the Seller's  best  knowledge,  information  and
                     belief,  all ad-valorem  and other personal  property taxes
                     for 2001 and prior years assessed  against the Assets,  and
                     all state and federal taxes  assessed  against the Seller's
                     employees'  wages have been paid or  provided  for,  or the
                     Seller  will make  sure the same will be paid and  provided
                     for as of the Closing Date of this Agreement; and no legal,
                     governmental  or   administrative   action  is  pending  or
                     threatened with regard to any such taxes or assessments.

           J.        Absence of Violation or Conflict.  The execution,  delivery
                     and  performance of the  transactions  contemplated by this
                     Agreement  by the  Seller  do not  and  will  not  violate,
                     conflict  with  or  result  in  the  breach  of  any  term,
                     condition  or  provision  of or require  the consent of any
                     other person under: (1) any law,  ordinance or governmental
                     rule or  regulation  known to the  Seller  and to which the
                     Seller,  the Assets or the  Business  is  subject;  (2) the
                     governing  documents  of or any  securities  issued  by the
                     Seller; or (3) any mortgage,  indenture or other instrument
                     to which  the  Seller  is a party  or by  which  any of the
                     Assets  or  the  Business  may be  bound  or  effected.  No
                     authorization,  approval or consent of and no  registration
                     or filing with any  governmental  or regulatory body or any
                     other  third  party  is  required  in  connection  with the
                     execution,  delivery and  performance  of this Agreement by
                     the Seller.

           K.        Conforming  Use.  To its best  knowledge,  information  and
                     belief, the Seller has used the Assets for the purposes for
                     which  such  property  was  intended,  and has  abided  by,
                     conformed  to and caused  others to abide by and conform to
                     all  laws,  ordinances,   orders,  rules,  regulations  and
                     statutes   of   national,   state,   municipal   or  county
                     governmental  authorities  that  are  now  existing  or may
                     hereinafter  be  enacted  and  that are  controlling  or in
                     manner  affecting  the use and  operation  by the Seller of
                     Assets.

           L.        Title.  At the Closing and as of the  Effective  Date,  the
                     Buyer will be vested  absolutely with ownership of and good
                     and  merchantable  title  to the  Assets.  Except  for  the
                     Excluded Assets, the Assets constitute all property, assets
                     and  contractual  rights  necessary  for the conduct of the
                     Business  as  presently  conducted.  Seller has no material
                     assets other than the Assets and the Excluded Assets.

           M.        Accuracy  and  Completeness  of  Information.   No  written
                     statement,  representation,  warranty or other  information
                     provided or  furnished  by or on behalf of the Buyer to the
                     Seller in this  Agreement or otherwise in  connection  with
                     this transaction  contains, as of the date, made any untrue
                     statement of a material fact or omits to state any material
                     fact necessary to make the statements herein or therein not
                     misleading.



                                      -16-


           N.        Financial Matters and Absence of Certain Changes.

                     (1) Financial   Statements.   The  Seller  has   previously
                         furnished to the Buyer unaudited  financial  statements
                         of the Seller for the years ended December 31, 1999 and
                         2000 and for the interim  period ended October 31, 2001
                         (collectively,   the   "Financial   Statements").   The
                         Financial  Statements  have been  prepared  in a manner
                         that is  consistent  with the books and  records of the
                         Seller and  present  fairly the  information  contained
                         therein in the same manner as such information has been
                         historically reported by the Seller.

                     (2) Liabilities.  Except for the  liabilities  reflected on
                         the Financial  Statements and as otherwise  provided in
                         this Agreement, the Seller has, and, to the best of the
                         Seller's knowledge, on the Closing Date the Seller will
                         have, no other material liabilities, whether accrued or
                         absolute,  and whether due or to become due, or arising
                         out of transactions entered into, or any state of facts
                         existing, prior to the Closing Date which will encumber
                         the  Assets  or  impair  the use,  value  or  ownership
                         thereof by the Buyer  following the Closing.  There has
                         been no  material  adverse  change in the Assets  since
                         October 31, 2001.

                     (3) Certain Changes.  Since October 31, 2001, there has not
                         been: (a) any amendment,  termination or revocation, or
                         threatened  termination,  revocation or modification of
                         any  license,  permit  or  franchise  required  for the
                         continued  operation of the  Business;  (b) any sale or
                         transfer of the Assets; (c) any pledge of subjection to
                         lien,  charge or  encumbrance  of any  kind,  or, on or
                         affecting  any  of  the  Assets,  except  as  otherwise
                         provided in this  Agreement;  (d) any material  damage,
                         destruction or loss of or to the Assets, whether or not
                         covered  by  insurance;  and (e) any  material  adverse
                         change in the Business.

           O.        Continuation  of  Representations.   The   representations,
                     warranties  and  covenants  of the Seller  shall be in full
                     force and effect as of the Closing Date, and shall,  except
                     as otherwise provided herein,  survive the Closing only for
                     a period  of three (3)  years  from and  after the  Closing
                     Date,  unless  written  notice  of a claim  is given to the
                     Seller within such three year period,  in which event,  the
                     claims  identified within such notice shall survive without
                     time  limitation (but subject to any statutes of limitation
                     applicable thereto under governing law).

           P.        Indemnification.  The Seller agrees to and shall  indemnify
                     and hold the Buyer  harmless  from any loss,  liability  or
                     expense,  including  attorneys'  fees,  arising  out of the
                     breach of any representation,  covenant or warranty made by
                     it hereunder.



                                      -17-


                                   ARTICLE XV
                                   ----------

             REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE BUYER
             ------------------------------------------------------

           The Buyer hereby  represents,  warrants and  covenants to the Seller,
which  representations,  warranties and covenants shall survive the Closing,  as
follows:

           A.        Power and Authority. The Buyer has full power and authority
                     to enter into, execute and perform this Agreement;  to make
                     any   representation,   warranty,   covenant  or  agreement
                     contained  herein;  to perform  every act and  execute  and
                     deliver any and all  documents,  instruments  or agreements
                     necessary or  appropriate  to consummate  the  transactions
                     contemplated by this Agreement.  All actions on the part of
                     the  Buyer   necessary  to  consummate   the   transactions
                     contemplated  by this  Agreement  have been  duly  taken as
                     required by applicable law, the governing  documents of the
                     Buyer and any  applicable  agreements.  This  Agreement has
                     been,  and  other  agreements,  documents  and  instruments
                     required  to be  executed  and  delivered  by the  Buyer in
                     accordance with the provisions hereof, have been or will be
                     duly executed and delivered by the Buyer and constitute (or
                     will at Closing  constitute)  the legal,  valid and binding
                     obligations of the Buyer,  enforceable against the Buyer in
                     accordance with their terms.

           B.        Organization.  The Buyer  represents to the Seller that the
                     Buyer is a duly organized and validly existing  corporation
                     under the laws of the State of Delaware,  in good  standing
                     in  all  applicable  jurisdictions,  with  full  power  and
                     authority  to enter into this  Agreement  and carry out the
                     terms, conditions and provisions hereof.

           C.        Litigation.   There  is  no   litigation,   proceeding   or
                     governmental  investigation  pending or  threatened  in any
                     court, arbitration board, administrative agency or tribunal
                     against or  relating  to the Buyer  that  would  prevent or
                     impede the consummation of this Agreement by the Buyer. The
                     Buyer does not know of and has no reasonable ground to know
                     of  any  basis  for  any  such  litigation,  proceeding  or
                     investigation  and the  execution and  performance  of this
                     Agreement by it will not result in the default with respect
                     to any judgment,  order, writ, injunction,  decree, rule or
                     regulation  of  any  applicable  court  or   administrative
                     agency.

           D.        Accuracy  and  Completeness  of  Information.   No  written
                     statement,  representation,  warranty or other  information
                     provided or  furnished by or on behalf of the Seller to the
                     Buyer in this  Agreement or otherwise  in  connection  with
                     this  transaction  contains  as of the date made any untrue
                     statement of a material fact or omits to state any material
                     fact necessary to make the statements herein or therein not
                     misleading.



                                      -18-


           E.        Consent and Filings.  There is no requirement applicable to
                     the Buyer to obtain any consent,  approval or authorization
                     of,  or to  make  or  effect  any  declaration,  filing  or
                     registration with, any governmental authority for the valid
                     execution and delivery by the Buyer of this Agreement,  the
                     due performance by the Buyer of its  obligations  hereunder
                     or the lawful consummation of the transactions contemplated
                     hereby.

           F.        Absence of Violation or Conflict.  The execution,  delivery
                     and  performance of the  transactions  contemplated by this
                     Agreement  by  the  Buyer  do not  and  will  not  violate,
                     conflict  with  or  result  in  the  breach  of  any  term,
                     condition  or  provision  of or require  the consent of any
                     other person under: (1) any law,  ordinance or governmental
                     rule or  regulation  known to the  Buyer  and to which  the
                     Buyer is subject;  (2) the  governing  documents  of or any
                     securities  issued  by  the  Buyer;  or (3)  any  mortgage,
                     indenture or other instrument to which the Buyer is a party
                     or by which any of its  properties  or business  activities
                     may be bound or  effected.  No  authorization,  approval or
                     consent  of  and  no   registration   or  filing  with  any
                     governmental or regulatory body or any other third party is
                     required in  connection  with the  execution,  delivery and
                     performance of this Agreement by the Buyer.

           G.        Accuracy  and  Completeness  of  Information.   No  written
                     statement,  representation,  warranty or other  information
                     provided or  furnished by or on behalf of the Seller to the
                     Buyer in this  Agreement or otherwise  in  connection  with
                     this transaction  contains, as of the date, made any untrue
                     statement of a material fact or omits to state any material
                     fact necessary to make the statements herein or therein not
                     misleading.

           H.        Continuation  of  Representations.   The   representations,
                     warranties  and  covenants  of the  Buyer  shall be in full
                     force  and  effect as of the  Effective  Date,  and  shall,
                     except as otherwise  provided  herein,  survive the Closing
                     hereof  only for a period of three (3) years from and after
                     the Closing Date, unless written notice of a claim is given
                     to the Buyer within such three year period, in which event,
                     the claims  identified  within  such notice  shall  survive
                     without  time  limitation  (but  subject to any statutes of
                     limitation applicable thereto under governing law).

           I.        Indemnification.  The Buyer  agrees to and shall  indemnify
                     and hold the Seller  harmless  from any loss,  liability or
                     expense,  including  attorneys'  fees,  arising  out of the
                     breach of any representation,  covenant or warranty made by
                     it hereunder.


                                      -19-


                                   ARTICLE XVI

                     USE AND OPERATION OF THE ASSETS BETWEEN
                     ---------------------------------------
                         THE EFFECTIVE DATE AND CLOSING
                         ------------------------------

           The Seller represents to the Buyer that, as of the Effective Date and
prior to the  Closing,  the Assets have been used and operated by the Seller and
will be used and operated as follows:

           A.        Property.  The  Seller  will  use  commercially  reasonable
                     efforts  to use and  operate  the  Assets  in the  ordinary
                     courses  of  Business  and cause the  Assets to be kept and
                     maintained in their current operating condition and repair,
                     with  the   exception   of   reasonable   wear,   tear  and
                     obsolescence.

           B.        Governmental  Reports. The Seller will use its best efforts
                     to duly and timely  file all  reports  required to be filed
                     with any and all governmental authorities, and has and will
                     duly observe and conform to all laws,  rules,  regulations,
                     ordinances, codes, orders, licenses and permits relating to
                     or affecting in any material way the Assets.

           C.        Liens/Security   Interests.   Unless  otherwise  authorized
                     hereby or provided  for herein,  the Seller shall not enter
                     into,  create,  assume or allow to exist  any new  security
                     agreement,  lien,  encumbrance,  mortgage,  deed of  trust,
                     pledge,   conditional   sale  or  other   title   retention
                     agreement,  easement, covenant, restriction or other burden
                     upon the Assets.

           D.        Sales/Transfers.  The Seller will not sell, lease, abandon,
                     assign,  transfer,  license or otherwise  dispose of all or
                     any portion of the Assets.

           E.        Contracts/Agreements.  The Seller  will not enter,  assume,
                     amend,  change or modify any  Contract or other  agreement,
                     arrangement,    commitment,    instrument   or   obligation
                     materially  relating to or  affecting in any way the Assets
                     or the Seller's ownership thereof.

           F.        Defaults. The Seller will use its best efforts to not be in
                     default  under or become in breach of any term or provision
                     of, or suffer  or  permit to exist any  condition  or event
                     which,  after  notice  or  lapse  of  time or  both,  would
                     constitute a breach of or default under any of the Seller's
                     agreements  which  would give any other  party  thereto the
                     right  terminate  the same,  claim  damages  thereunder  or
                     impose a lien upon all or any portion of the Assets.

           G.        Accounting Matters.  Buyer and Seller acknowledge and agree
                     that,   notwithstanding   the   Effective   Date   of  this
                     transaction; (i) Seller shall continue to possess, operate,
                     maintain and utilize the Assets  between the Effective Date
                     and the Closing Date, but shall do so in strict  accordance
                     with this Agreement;  and (ii) Seller,  as compensation for
                     its  management of the Assets during such period,



                                      -20-


                     shall be entitled to receive all  revenues  generated by or
                     derived  from the  ownership  or  operation  of the  Assets
                     during  the  period  between  the  Effective  Date  and the
                     Closing Date, but shall be solely  responsible  for any and
                     all   obligations  or   liabilities   arising  from  or  in
                     connection  with the  ownership  or operation of the Assets
                     during the period  between the  Effective  Date and Closing
                     Date.  As a material  consideration  of this  Agreement  to
                     Seller,  Buyer agrees to use reasonable  commercial efforts
                     to bill any  unbilled  work in  process of Seller as of the
                     Closing  Date  and  to  collect  any  outstanding  accounts
                     receivable  of Seller  as of the  Closing  Date,  but Buyer
                     shall  have no  obligation  to  institute  litigation  with
                     respect to Seller's  receivables,  nor shall Buyer have any
                     liability of any kind to Seller for  collection  efforts of
                     Buyer upon such receivables, save and except any failure of
                     Buyer to  remit  collections  of  Seller's  receivables  to
                     Seller in accordance herewith. Seller may undertake to bill
                     and collect its work in process and receivables at any time
                     by  written  notice  to  Buyer,  whereupon  Buyer  shall be
                     discharged  from any further  responsibility  with  respect
                     thereto.  Buyer agrees that, during the pendancy of efforts
                     to collect Seller's outstanding receivables and the winding
                     up of Seller's business and affairs, Seller may continue to
                     utilize the name "CJS Pinnacle Petroleum Services" for such
                     limited  purposes,  but for no others without prior written
                     consent of Buyer.  In light of the  foregoing and the other
                     terms  and  provisions  of  this  Agreement,  any  payments
                     received  by  Seller  or  Buyer  which  are in  payment  of
                     receivables arising or attributable to periods prior to the
                     Closing Date shall be the property of Seller.  Any payments
                     received   by  Seller  or  Buyer   which  are   payment  of
                     receivables arising or attributable to periods after to the
                     Closing  Date  shall be the  property  of Buyer.  Buyer and
                     Seller agree to remit any such payments  which are received
                     by either of them and which are the  property  of the other
                     Party to the other Party promptly upon receipt of the same.
                     Buyer and Seller shall  cooperate  fully in the issuance of
                     notices to vendors, customers and suppliers for purposes of
                     effectuating the collection procedures contemplated by this
                     Agreement.


                                  ARTICLE XVII
                                  ------------

              CONDITIONS PRECEDENT TO THE OBLIGATIONS OF THE BUYER
              ----------------------------------------------------

           All  obligations of the Buyer under this Agreement are subject to the
fulfillment,  prior to or at the Closing,  of each of the following  conditions,
any of which may be waived by the Buyer:

           A.        Accuracy   of   Covenants.   Each   and   every   covenant,
                     representation  and  warranty  of  the  Seller  under  this
                     Agreement  shall be true and  accurate  as of the date when
                     made,  shall be  deemed  to be made  again at and as of the
                     time of the Closing, and shall then be true and accurate in
                     all respects on and as of the Effective Date.

           B.        Performance  of  Covenants.  The Seller has  performed  and
                     complied  with, in all respects,  each and every  covenant,
                     agreement  and condition  required by this



                                      -21-


                     Agreement to be  performed or complied  with prior to or at
                     the  Closing  and will  continue to perform and comply with
                     the same thereafter.

           C.        Power  and  Authority.   The  Seller  has  full  power  and
                     authority to enter into this Agreement and to carry out the
                     transactions contemplated hereby.

           D.        Binding Effect.  This Agreement is legally binding upon the
                     Seller and is  enforceable  in  accordance  with its terms,
                     subject only to the usual  exceptions  thereto  relating to
                     bankruptcy and equitable principles.

           E.        Statutory   Requirements.   All  applicable  and  necessary
                     statutory  and  other  legal  requirements  for  the  valid
                     consummation  of  the  transactions  contemplated  by  this
                     Agreement  (including,  but not limited to, compliance with
                     any laws  protecting  creditors  of the Seller)  shall have
                     been  fulfilled,  and any and all necessary third party and
                     regulatory approvals,  licenses and permits shall have been
                     obtained.

           F.        Litigation.  There  shall not be any  actual or  threatened
                     litigation  to  restrain  or  invalidate  the  transactions
                     contemplated by this Agreement.  No proceedings  shall have
                     been instituted or been  threatened  against the Seller for
                     the  protection of creditors or otherwise for the relief of
                     the Seller.

           G.        Carrillo Employment  Agreement.  Julian Carrillo shall have
                     entered into a written employment  agreement with the Buyer
                     that is in form and  substance  substantially  identical to
                     that  attached   hereto  as  Exhibit  "E"  (the   "Carrillo
                     Employment Agreement").


                                  ARTICLE XVIII
                                  -------------

              CONDITIONS PRECEDENT TO THE OBLIGATIONS OF THE SELLER
              -----------------------------------------------------

           All obligations of the Seller under this Agreement are subject to the
fulfillment,  prior to or at the Closing,  of each of the following  conditions,
any of which may be waived by the Seller:

           A.        Accuracy   of   Covenants.   Each   and   every   covenant,
                     representation   and  warranty  of  the  Buyer  under  this
                     Agreement  shall be true and  accurate  as of the date when
                     made,  shall be  deemed  to be made  again at and as of the
                     time of the Closing, and shall then be true and accurate in
                     all respects and shall survive the Closing.

           B.        Performance  of  Covenants.  The  Buyer has  performed  and
                     complied  with, in all respects,  each and every  covenant,
                     agreement  and condition  required by this  Agreement to be
                     performed  or complied  with prior to or at the Closing and
                     will   continue   to  perform  and  comply  with  the  same
                     thereafter.



                                      -22-


           C.        Power and Authority. The Buyer has full power and authority
                     to  enter  into  this   Agreement  and  to  carry  out  the
                     transactions contemplated hereby.

           D.        Binding Effect.  This Agreement is legally binding upon the
                     Buyer and is  enforceable  in  accordance  with its  terms,
                     subject only to the usual  exceptions  thereto  relating to
                     bankruptcy and equitable principles.

           E.        Statutory  Requirements.  All  statutory  and  other  legal
                     requirements for the valid consummation of the transactions
                     contemplated by this Agreement (including,  but not limited
                     to,  compliance with any laws  protecting  creditors of the
                     Buyer) shall have been fulfilled, and any and all necessary
                     third party and regulatory approvals,  licenses and permits
                     shall have been obtained.

           F.        Litigation.  There  shall not be any  actual or  threatened
                     litigation  to  restrain  or  invalidate  the  transactions
                     contemplated by this Agreement.  No proceedings  shall have
                     been  instituted or been  threatened  against the Buyer for
                     the  protection of creditors or otherwise for the relief of
                     the Buyer.

           G.        Carrillo Employment  Agreement.  Julian Carrillo shall have
                     entered into the  Carrillo  Employment  Agreement  with the
                     Buyer.


                                   ARTICLE XIX
                                   -----------

                                     DEFAULT
                                     -------

           1. Each of the following  events shall constitute a default or breach
of this Agreement by the Seller:

           A.        If  the   Seller   fails  to  close  and   consummate   the
                     transactions  contemplated  by this  Agreement on or before
                     the Closing  Date, or perform in  accordance  herewith,  as
                     well as with any and all  documents  executed in connection
                     herewith or required hereby.

           B.        If the Seller  fails to  perform or comply  with any of the
                     terms, conditions, provisions, representations,  warranties
                     or covenants of this Agreement and if such  non-performance
                     continues  for a period of thirty  (30) days after  written
                     notice thereof is given by the Buyer to and received by the
                     Seller.

           C.        If the Seller sells, vacates or abandons the Assets, unless
                     the same is accomplished as provided herein.

           D.        If the Seller or any of its successors or assignees,  while
                     in possession of the Assets, files a petition in bankruptcy
                     or insolvency,  or for reorganization  under any



                                      -23-


                     bankruptcy act, or shall  voluntarily take advantage of any
                     such  act  by  answer  or  otherwise,   or  shall  make  an
                     assignment for the benefit of creditors.

           E.        If  involuntary  proceedings  under any  bankruptcy  law or
                     insolvency act, or to foreclose or repossess the Assets are
                     instituted  against  the Seller or if a receiver or trustee
                     is appointed over all or substantially  all of the property
                     of the Seller, and if such proceedings are not dismissed or
                     the receivership or trusteeship  vacated within thirty (30)
                     days after the institution or appointment of the same.

           2. Each of the followings events shall constitute a default or breach
of this Agreement by the Buyer:

           A.        If the Buyer fails to close and consummate the transactions
                     contemplated  by this  Agreement  on or before the  Closing
                     Date,  or perform in accordance  herewith,  as well as with
                     any and all documents  executed in  connection  herewith or
                     required hereby.

           B.        If the Buyer  fails to  perform  or comply  with any of the
                     terms, conditions, provisions, representations,  warranties
                     or covenants of this Agreement and if such  non-performance
                     continues  for a period of thirty  (30) days after  written
                     notice  thereof is given by the Seller to and  received  by
                     the Buyer.

           C.        If the Buyer, or any of its successors or assignees,  files
                     a   petition   in   bankruptcy   or   insolvency,   or  for
                     reorganization   under  any   bankruptcy   act,   or  shall
                     voluntarily  take  advantage  of any such act by  answer or
                     otherwise,  or shall make an assignment  for the benefit of
                     creditors.

           D.        If  involuntary  proceedings  under any  bankruptcy  law or
                     insolvency  act, or to foreclose or repossess  any business
                     assets or properties are instituted against the Buyer or if
                     a   receiver   or  trustee   is   appointed   over  all  or
                     substantially all of the property of the Buyer, and if such
                     proceedings  are  not  dismissed  or  the  receivership  or
                     trusteeship  vacated  within  thirty  (30)  days  after the
                     institution or appointment of the same.


                                   ARTICLE XX
                                   ----------

                       DISCLOSURE, ACCESS AND INFORMATION
                       ----------------------------------

           A. From the date hereof  until the  Closing  Date,  the Seller  shall
grant to the Buyer and its agents  and other  representatives,  upon  reasonable
notice and during normal business  hours,  access to the Assets and Contracts of
the Seller to the extent reasonably  required to enable the Buyer to conduct its
due  diligence  review for  purposes of the  transactions  contemplated  by this
Agreement.  All such  information  obtained  by the  Buyer  and its  agents  and


                                      -24-


representatives shall be deemed confidential and maintained by the Buyer as such
until the Closing Date.

           B. The Buyer agrees to indemnify the Seller and hold it harmless from
and against any and all damages, losses, liabilities,  demands, claims, actions,
causes of  action,  proceedings,  assessments,  settlements,  judgments,  fines,
penalties,  interest,  costs or  expenses,  including  legal and other  expenses
incurred in investigating and defending the same (collectively  "Damages") which
arise from any personal  injury,  death or property  damage  resulting  from any
actions of the Buyer in the course of the Buyer's  inspection  of the Assets and
Contracts pursuant to paragraph A of this Article.

           C. The Parties will  disclose to each other and provide to each other
copies  of  all  Contracts,   commitments,  records  and  financial  information
constituting a material item concerning the subject matter of this Agreement and
which should be disclosed  prior to Closing.  In addition,  the Parties agree to
disclose to each other during the term of this  Agreement,  within ten (10) days
after written notice  requesting  the same,  any such  material,  information or
records  of  the  kind  referred  to  above   pertaining  to  the   transactions
contemplated by this Agreement,  not including the specific business  activities
conducted by any of the Parties that are not related to this Agreement.


                                   ARTICLE XXI
                                   -----------

                           FEES, COMMISSIONS AND COSTS
                           ---------------------------

           Unless  otherwise   authorized   hereby,  the  Parties  covenant  and
represent to each other that if either of them has employed any broker, realtor,
commissioned agent, attorney,  advisor or other outside professional incident to
the  transactions  contemplated by this  Agreement,  then the Party who employed
such professional  agrees to and shall be solely  responsible for the payment of
any and all costs, expenses or fees charged in connection  therewith,  and shall
hold  the  other   harmless  and   indemnify  the  other  with  respect  to  the
representations  and warranties  contained herein,  including the payment of any
and all costs and expenses that may be charged by any person of the kind or type
described above.  Notwithstanding  anything to the contrary set forth above, the
Seller and Buyer each agree to and shall pay their  respective  costs,  expenses
and attorney's  fees incurred in connection  with the preparation of any and all
documents, instruments, agreements, conveyances, transfers, assignments or other
instruments that have been or will be prepared in connection with the Closing of
the transactions contemplated by this Agreement.


                                  ARTICLE XXII
                                  ------------

                                  ASSIGNABILITY
                                  -------------

           Unless  otherwise  provided herein or authorized  hereby and prior to
the Closing,  this  Agreement,  including any  amendments  hereof,  the Exhibits
attached hereto,  and any instruments,


                                      -25-


agreements or documents  required  hereby,  may not be transferred,  assigned or
conveyed,  in whole or in part, by any Party hereto without first  obtaining the
written consent of the other Party. Notwithstanding anything to the contrary set
forth  above,  the Parties  specifically  acknowledge  and agree that the Seller
shall have the right to  transfer,  assign or convey  all or any  portion of the
Purchase Price and Service Credit or its rights hereunder to Warren and/or Pedco
prior to or after the Closing of the transactions contemplated hereby.

                                  ARTICLE XXIII

                                     NOTICES

           Any and all notices  required or permitted to be given by the Parties
to any other Party pursuant to this  Agreement  shall be in writing and shall be
delivered  to the  other  Party  by  personal  delivery,  telefax  with  written
confirmation thereof, regular mail or by sending the same by United States mail,
certified or registered,  return receipt requested, with postage thereon prepaid
to the Parties at the addresses  listed  below.  Any Party may from time to time
designate  a new  mailing  address  by  written  notice  to any  other  Party in
accordance  with the foregoing  provisions.  All notices shall be deemed to have
been  delivered  upon actual  receipt as  evidenced  by return  receipt or other
delivery receipt.

               Pinnacle/Seller:   CJS PINNACLE PETROLEUM SERVICES, LLC,
                                  a Texas limited liability company
                                  c/o Warren Resources, Inc.
                                  489 Fifth Avenue, 32nd Floor
                                  New York, New York 10014
                                  Attn:  NORMAN F. SWANTON,
                                         Chief Executive Officer

               Basic/Buyer:       BASIC ENERGY SERVICES, INC.,
                                  a Delaware Corporation
                                  406 North Big Spring
                                  Midland, Texas 79701
                                  Attn:  KENNETH V. HUSEMAN,
                                         President and Chief
                                         Executive Officer

                                  with a copy to:

                                  WILLIAM M. KERR, JR.
                                  Kerr & Ward, L.L.P.
                                  500 West Texas, Suite 1310
                                  Midland, Texas 79701


                                      -26-


                     Warren:      WARREN RESOURCES, INC.,
                                  a New York corporation
                                  489 Fifth Avenue, 32nd Floor
                                  New York, New York 10017
                                  Attn:  NORMAN F. SWANTON,
                                         Chief Executive Officer

                     Pedco:       PETROLEUM DEVELOPMENT CORPORATION,
                                  a New Mexico corporation
                                  4113 Eubank, NE, Suite 400
                                  Albuquerque, New Mexico 87112
                                  Attn:  JIM C. JOHNSON, JR.,
                                         President


                                  ARTICLE XXIV
                                  ------------

                                 GENERAL MATTERS
                                 ---------------

           A.        Additional  Instruments.  All Parties  agree to execute any
                     and all  additional  instruments,  documents and agreements
                     deemed  necessary or advisable  to fully  effectuate  their
                     intent and the purposes of this Agreement.

           B.        Governing  Law.  This  Agreement  and any other  additional
                     agreements,  documents  and  instruments  entered  into and
                     executed by the Parties  shall be governed by and construed
                     in accordance with the laws of the State of Texas.

           C.        Time of The  Essence.  Time shall be of the  essence in the
                     performance by the Parties of all the terms, conditions and
                     provisions of this Agreement.

           D.        Waivers.  One  or  more  waivers  of  any  covenant,  term,
                     condition  or  provision  of this  Agreement  shall  not be
                     construed  as a waiver of a  subsequent  breach of the same
                     covenant,  term,  condition  or  provision.  The consent or
                     approval  by any one of the Parties to or of any act by the
                     other Party requiring such consent or approval shall not be
                     deemed to waive or render  unnecessary  the  consent  to or
                     approval of any subsequent or similar act.

           E.        Pronouns. All pronouns used in this Agreement shall include
                     the  masculine,  feminine  and  neuter  genders,  and shall
                     include the  singular  and plural,  and the context of this
                     Agreement shall be read accordingly, if so required.

           F.        Headings/Captions.  Any title, caption or heading contained
                     in this Agreement is used for convenience  only,  shall not
                     be deemed to be a part of the  context  of this  Agreement,
                     and  shall not  explain,  modify  or  interpret  any of the
                     terms, conditions or provisions contained herein.



                                      -27-


           G.        Severability.  In the event any provision of this Agreement
                     shall be deemed to be  invalid,  the same shall not affect,
                     in any  respect,  the  validity  of the  remainder  of this
                     Agreement.

           H.        Amendments. This Agreement shall not be deemed or construed
                     to be modified, amended,  superseded,  canceled, altered or
                     waived, in whole or in part, except by a written instrument
                     or amendment signed by the Parties.

           I.        Entire  Agreement.  This Agreement  constitutes  the entire
                     agreement  among and between the Parties and supersedes all
                     prior oral and written  agreements made by them; which oral
                     and written agreements shall be deemed null and void and of
                     no further force and effect.

           J.        Counterparts.  This  Agreement  may be executed in multiple
                     counterparts  by each Party and each  counterpart  shall be
                     identical  and deemed to be an original  for all  purposes,
                     and all counterparts  together shall constitute one (1) and
                     the same original document. The Seller is hereby authorized
                     to  assemble  the  separate   counterparts   into  one  (1)
                     document.

           K.        Binding  Effect.  The terms,  conditions  and provisions of
                     this Agreement, and all amendments hereto, if any, shall be
                     binding  upon and inure to the  benefit of the  Parties and
                     their   respective   heirs,   successors,   administrators,
                     personal representatives, executors and assignees.


           IN WITNESS  WHEREOF,  the Parties have executed this  Agreement  this
31st day of  December,  2001;  however,  the same  shall  be  EFFECTIVE  as more
particularly provided for herein.


Basic/Buyer:                                  Pinnacle/Seller:
- ------------                                  ----------------

BASIC ENERGY SERVICES, INC.,                  CJS PINNACLE PETROLEUM
Delaware corporation                          SERVICES, LLC, a Texas limited
                                              liability company


By:   /s/ Kenneth V. Huseman                  By: /s/ Jim C. Johnson, Jr.
      ----------------------------                -----------------------
      KENNETH V. HUSEMAN, President               JIM C. JOHNSON, JR.,
      President and Chief                         President of PEDCO, INC.,
      Executive Officer                           a Texas Corporation, the
                                                  Managing Member


                                      -28-


Warren:                                       Pedco:
- -------                                       ------


WARREN RESOURCES, INC., a New York            PETROLEUM DEVELOPMENT CORPORATION,
corporation, on behalf                        a New Mexico corporation, on
of itself and its wholly owned                behalf of itself and its wholly
entities described herein                     owned entities described herein


By: /s/ Jim C. Johnson, Jr.                   By: /s/ Jim C. Johnson, Jr.
    -----------------------                       -----------------------
    JIM C. JOHNSON, JR., Executive                JIM C. JOHNSON, JR.,
    Vice President                                President



                                      -29-