ASSET PURCHASE AGREEMENT

     Agreement made and entered effective the first day of September,  1997 (the
"Effective  Date")  between and among BLACK WARRIOR  WIRELINE  CORP., a Delaware
corporation  with its  principal  place of business at 3748  Highway 45,  North,
Columbus,  Mississippi  (hereinafter referred to as "Purchaser") and DIAMONDBACK
DIRECTIONAL,  INC., a Texas corporation,  which includes its successor by way of
name change  (hereinafter  referred to as "Seller" or the  "Corporation")  along
with ALAN MANN and MICHAEL DALE JOWERS (hereinafter referred to as "Principals")
who are the  holders  of  eighty-five  percent  of all stock of all  classes  of
Seller.

     WHEREAS, Purchaser and Principals are the parties to that certain Letter of
Intent dated  September  3, 1997,  relating to the  acquisition  by Purchaser of
Principals' shares in the Corporation;

     WHEREAS, the parties desire to amend the letter of intent so that Purchaser
acquires all of the assets of Seller,  and to further record their agreement and
provide for the closing thereof.

     NOW, THEREFORE, the parties agree as follows:




                                I. Sale of Assets

     Subject to the terms and conditions set forth below,  and to the payment of
the Purchase Price set forth in paragraph 2 herein,  the sufficiency of which is
hereby  acknowledged,  Purchaser  agrees  to buy and  Seller  agrees to sell and
convey clear and merchantable  title to Purchaser of all of Seller's assets (the
"Assets"),  free and  clear of all liens  and  encumbrances,  upon the terms and
conditions set forth below. Unless excluded herein the Assets include all of the
assets needed by the Corporation for its continued operation, utilizing the same
means of operation as employed by the Corporation in the past, and include,  but
are not limited to:

        1.1 The trade name Diamondback Directional, and all related trade names,
trademarks, emblems and descriptions related thereto;

        1.2  All  of the  assets  of  the  Corporation  used  or  useful  in the
directional  drilling  business,  whether or not in currently useable condition,
including, but not limited to:

             1.2.1 Cash,  investment accounts,  certificates of deposit,  bonds,
prepaid  insurance,   prepaid  utilities,   and  all  other  deposits  and  cash
equivalents of every kind and character,  provided that at Closing,  the balance
of Seller's  existing  banking  and  investment  accounts  shall be paid over to
Purchaser by wire transfer,  with the exception that the $100,000  Earnest Money
provided for by this Agreement shall be retained by Seller.


                                       2


             1.2.2 Copies of the books and records of the Corporation, including
a copy of the Corporation  Books, as described  above,  and all other accounting
and bookkeeping  records of every kind and character,  including but not limited
to, all computer hardware and software; files; invoices;  receipts;  indications
of payment; cancelled checks; bank statements and reconciliations, etc;

             1.2.3 Telephone Numbers. The telephone numbers, as follows:

                (800) 769 5988, (281) 363 2299 and (409) 447 2252

             1.2.4 All customer lists;

             1.2.5 All  leases,  including  the  Equipment  Leases  and the Real
Property Lease;

             1.2.6 All vehicles;

             1.2.7 The Receivables.

                                       3


                               II. Purchase Price

     The Purchase Price for the Assets shall be the sum of:

        2.1 the "Earnest Money" paid upon execution of the Letter of Intent, the
sum of one hundred thousand dollars ($100,000);

        2.2  $2,650,000.00  in cash,  which  shall not be offset by the  Earnest
Money, to be delivered by wire transfer to the account of Seller at Closing;

        2.3 a note (which is one of the "Notes"), in the form attached hereto as
Schedule 2.3, for the sum of  $3,000,000.00,  said note bearing  interest at the
rate of Six and One-Half  Percent (6 1/2%),  interest to be paid quarterly,  and
the principal to be due August 31, 1999, and which Note is subject to adjustment
as provided in Sections 3.3 and 9.8 hereof;

        2.4 a note (which is one of the "Notes"), in the form attached hereto as
Schedule 2.3, for one-half of "net  receivables",  as defined herein,  said note
bearing interest at the rate of Six and One-Half  Percent (6 1/2%),  interest to
be paid  quarterly,  and the principal to be due August 31, 1999, and which Note
is subject to adjustment as provided in Sections 3.3 and 9.8 hereof;

        2.5 six hundred forty-seven  thousand five hundred sixty-nine  (647,569)
shares  of  unregistered  common  stock  in  Purchaser  with a  total  value  of
$3,000,000.00,  based  on the  average  bid  price  of  BWWC  stock  during  the
twenty-one (21) days immediately prior to August 28, 1997, which was $4.6327;

        2.6 Assumption of the Payables, as that term is hereafter defined; and

        2.7 Reservation of the Stock Options provided for in Section 8.6 hereof.

                                       4


                         III. Closing Financing Matters

        3.1 Certain Definitions.  As used in this Agreement, the following terms
are defined as:

             3.1.1  Payables.  The  debts  of the  Corporation,  but only to the
extent reflected on the Closing Financial Exhibit, as hereinafter  defined,  for
all goods, services, supplies, subcontracts,  salaries, equipment rental and all
other debts and expenses  incurred by the  Corporation,  together with all other
liabilities of the  Corporation of every kind or character,  including a payable
to Seller  reflecting  income tax  liabilities  (the "Tax  Payable") on Seller's
income from January 1, 1997 through  August 31, 1997,  calculated as if Seller's
income were taxed at the rate of 39.6%.  Payables shall be separately  scheduled
on Schedule 3.1.1 hereto.

             3.1.2   Receivables.   The  trade   accounts   receivable   of  the
Corporation. Receivables shall be separately scheduled on Schedule 3.1.2 hereto.

             3.1.3 Net Receivables.  Receivables,  less Payables, subject to the
"Adjustment for rebooking IM2 Transaction", shown on Schedule 3.2.

        3.2 A  Closing  Financial  Exhibit  shall be  prepared  by  Sellers  and
attached to this Agreement as Schedule 3.2. The Closing  Financial Exhibit shall
reflect  that the assets and  liabilities  of the  Corporation  as of August 31,
1997, on an accrual  basis,  including but not limited to, an accrual for taxes,
and insurance  audit  exposure,  for all periods  prior to Closing.  The Closing
Financial  Exhibit shall also confirm the Net  Receivables,  which shall be used
for the preparation of the note required by Section 2.3 hereof.


                                       5


        3.3 On or before  December 31, 1997,  and one (1) year and two (2) years
following  Closing,  Purchaser  and Seller  shall  review the Closing  Financial
Exhibit and make  adjustments  thereto to  reflect:  (i) actual  collections  of
Receivables  and  write-off  of bad debts;  and (ii) any increase or decrease in
Payables,  including the Tax Payable,  as otherwise  provided by this Agreement.
The December 31, 1997  adjustment  shall reflect the changes to Receivables  and
Payables as a result of work in progress at August 31, 1997, it being recognized
that it will not be possible  to book such work in  progress  at  closing.  As a
result of such reconciliations, the amount of the Notes shall be adjusted.

        3.4 Closing of this  transaction is subject to the  Corporation  meeting
the following financial conditions:

             3.4.1 The debts of the  Corporation  at August 31, 1997 shall be as
set forth on the Closing Financial Exhibit.

             3.4.2 The Assets shall be in good working order,  ordinary wear and
tear  excepted.  Some  of the  Assets  are  listed  on  Schedule  3.4.2  hereto.
Compliance  with  this  requirement  shall be  verified  by  representatives  of
Purchaser, consulting with Seller immediately prior to Closing.

             3.4.3 The Closing Financial Exhibit shall accrue all liabilities of
the company as of August 31, 1997.


                                       6


             3.4.4 The accrued  vacation,  salary and job bonus benefits due, or
possibly  due,  to the  Corporation's  employees  and  subcontractors,  if  any,
effective  through  the close of business  on August 31,  1997,  shall be as set
forth on Schedule 4.17 hereto.

        3.5 In addition to, and without in any way limiting,  the warranties and
representations of Seller and Principals  granted in this Agreement,  Seller and
Principals  do hereby  jointly  and  severally  warrant  the  Closing  Financial
Exhibit. Seller and Principals hereby indemnify and hold Purchaser harmless from
any and all liabilities of the Corporation  existing as of the close of business
on  August  31,  1997 that are in excess  of the  liabilities  reflected  on the
Closing Financial Exhibit.

                  IV. Warranties and Representations of Sellers

     Seller and Principals do hereby, jointly and severally,  give the following
warranties to Purchaser as of August 31, 1997 and as of the Closing Date,  which
warranties shall survive Closing:

        4.1 Principals  warrant that they hold eighty-five  percent (85%) of all
of the outstanding  stock of the  Corporation,  cumulatively  850 shares held by
Principals.   Principals   hold  said  shares  free  and  clear  of  all  liens,
encumbrances, contracts and commitments. No person holds a preferential right to
purchase  said  shares  held by  Principals,  nor is any person  entitled to any
interest in the proceeds of the sale of said shares.

        4.2 The remaining  fifteen  percent (15%) of the  outstanding  shares of
stock in the Corporation,  being 150 shares, are owned by Joan K. Erickson,  the
only other  shareholder  of the  Corporation.  Neither the  Corporation  nor the
Principals are party to any contract, agreement, undertaking or understanding of
any kind or  character  with Joan K.  Erickson.  Seller and  Principals  have no
knowledge that any person holds a  preferential  right to purchase the shares of
Joan K. Erickson.  The sole role and  relationship  of Joan K. Erickson with the
Corporation is as a shareholder.


                                       7


        4.3 The  Corporate  Books of the  Corporation,  a copy of which shall be
delivered  to Purchaser  contemporaneously  with  execution  of this  Agreement,
consists of the following:

        Articles of Incorporation,  dated February 8, 1995. Bylaws,  dated March
        1, 1995.

        Minutes of Organizational Meeting of Directors, dated March 31, 1995.

        Minutes of Annual Meeting of Shareholders dated January 9, 1997.

        Minutes of Annual Meeting of Directors dated January 9, 1997.

        Consent of the  Directors  dated June 6, 1997.

        Consent of the Directors date June 13, 1997.

        Evidence that  Certificate No. 1, for 425 shares,  was issued to Michael
        Dale Jowers.

        Evidence  that  Certificate  No. 2, for 425  shares,  was issued to Alan
        Mann.

        Evidence that  Certificate No. 3, for 150 shares,  was issued to Joan K.
        Erickson.

        Said Corporate  Books and records are true and correct in every respect.
All meetings  reflected  in said  Minutes  were held and the Minutes  accurately
reflect the proceedings which occurred.


                                       8


        4.4 The Corporation has been operated in the ordinary course of business
during the entirety of its existence.  The income and expenses  reflected on the
financial books and records of the Corporation are accurately  stated.  With the
exception of the Earnest  Money,  there are no items of income other than income
from the directional  drilling  business,  and the expenses are not understated.
Without  limiting the generality of the foregoing,  from and after  September 1,
1997,  with the exception of receipt of the Earnest Money,  the  Corporation has
been  operated  in the  ordinary  course of  business,  and  there  have been no
payments to or transactions with Principals,  other than payment of salaries and
ordinary business expenses.

        4.5. The Assets are free and clear of liens and encumbrances,  except as
reflected on Schedule  3.4.2,  hereto.  There exists no condition  affecting the
title to or use of any part of the Assets  which would  prevent  Purchaser  from
using or  enforcing  its rights with  respect to any part of the  Assets,  after
Closing, to the same full extent that the Corporation could continue to do so if
the transactions  contemplated hereby did not take place. The Assets include all
of the assets needed by the Corporation for its continued  operation,  utilizing
the same means of operation as employed by the Corporation in the past.

        4.6 Schedule 4.6 attached hereto is a complete list containing the name,
address,  telephone and facsimile number, and name of contact, for all customers
of the Corporation (herein the "Customers"). Seller and Principals are not aware
of any  situation  or state of facts and  circumstances  which  would  cause the
Customers to discontinue the use of the  Corporation  for  directional  drilling
services,  to the  extent  that  such  Customers  require  directional  drilling
services in the future.


                                       9


        4.7 Schedule  4.7  represents a complete  listing of all  equipment  and
other personal  property  leases  (herein the  "Equipment  Leases") to which the
Corporation  is a party  at the  date of this  Agreement.  All of the  Equipment
Leases are valid and in full force and  effect,  and fully  state the  agreement
between the Corporation and the Lessor.  There is no default  existing in any of
the  Equipment  Leases.  Unless  indicated on Schedule 4.7, all of the Equipment
Leases  may be  cancelled  on not more  than  thirty  (30)  days'  notice by the
Corporation.  Unless noted on Schedule 4.7, the execution of this Agreement will
not violate the terms of any of the Equipment Leases. To further clarify, Seller
has received  notice from Bico that the existing lease  arrangement  will end on
October 8, 1997, and that  thereafter,  the lease  arrangement will be on a time
and materials basis.

        4.8 The  Corporation is party to a real property lease (herein the "Real
Property  Lease")  with Jim Carter  covering the  Corporation's  office and shop
located in Conroe,  Texas.  The Real Property  Lease  expires  October 31, 1997,
however the Lessor has indicated that the  Corporation  may hold over on a month
to month basis pending its anticipated move to larger quarters.  All of the Real
Property  Leases are valid and in full  force and  effect,  and fully  state the
agreement  between the Corporation and the Lessor.  There is no default existing
in any of the Real Property Leases.

        4.9 Schedule 4.9 is a complete  listing of all  subcontractors,  (herein
the  "Subcontractors"),  utilized  by the  Corporation  within  the past six (6)
months. There are no agreements of any kind or character, written or oral, which
require the Corporation to continue to use the  Subcontractors.  Except as noted
on  Schedule  4.9,  Sellers  are not aware of any set of facts or  circumstances
which would cause the Subcontractors to not perform services for the Corporation
in the  future,  if  requested  by the  Corporation.  All amounts due to driller
Subcontractors  have been either paid in full or booked on the Closing Financial
Statement,  with the exception of amounts due for work in progress at August 31,
1997,  which shall be included in the December 31, 1997 adjustment  provided for
in Section 3.2 hereof.


                                       10


        4.10 Schedule 4.10 contains a complete listing of all suppliers of goods
and  services  to the  Corporation  within the past six  months,  other than the
Equipment Leases and the Subcontractors,  pursuant to contracts which either (i)
involve  expenditures of greater than $10,000 annually,  or (ii) which cannot be
cancelled by the Corporation on notice of thirty (30) days or less.

        4.11 The  Corporation and the business that it operates is in compliance
with all applicable laws and regulations, including without limitation licensing
and environmental laws.

        4.12 The financial records and descriptive  information  relating to the
operation of the  Corporation  previously  furnished to  Purchasers,  including,
without limitation, the tax returns, financial statements, income statements and
customer lists, as well as the Closing Financial Exhibit, are true and correct.

        4.13 The operating  assets of the  Corporation  are in good and workable
condition, ordinary wear and tear excepted.

        4.14 The Corporation is a corporation,  duly organized, validly existing
and in good standing  under the laws of Texas.  All of the  outstanding  capital
stock of the  Corporation  is validly  issued,  fully  paid and  non-assessable.
Without  limiting  the  generality  of the  foregoing,  the  Corporation  has no
obligation to issue any stock to any person.

        4.15 Seller's  execution,  delivery or  performance  of this  agreement,
including  without  limitation  the  execution  and  completion of any agreement
contemplated hereby, has been approved by Seller's Board of Directors, and shall
be submitted to a vote of Seller's  shareholders pursuant to Article 5.10 of the
Texas Business  Corporation  Act.  Principals shall vote in favor of approval of
this agreement, both in their capacity as directors and as shareholders. Subject
to such shareholder  approval,  the execution,  delivery and performance of this
agreement,  including without limitation any agreement contemplated hereby, will
not violate or conflict with any provision of the  Corporation's  Certificate of
Incorporation,  Bylaws or other  corporate  documents,  nor will it  violate  or
constitute  an event of  default,  or permit  acceleration  of any  obligations,
pursuant to any agreement,  including,  without limitation,  debt agreements, to
which the Seller is a party.


                                       11


        4.16 Except as provided in Schedule 4.16,  the  Corporation is not party
to any contracts  calling for the Corporation to either provide or acquire goods
or services. Without limiting the generality of the foregoing, there has been no
contract  or  quotation,  arrangement  or  understanding  for the future sale of
services by the  Corporation  which extends beyond thirty (30) days,  except for
the outstanding quotes and proposals scheduled on Schedule 4.16, hereto.

        4.17  Other  than the  Employment  Agreements  called  for in  Article X
hereof,  the  Corporation  is not a party to any  labor  contracts  of any kind,
including,  without limitation,  collective bargaining agreements.  There are no
compensation  plans,  pension,  and  retirement  plans,  bonus and saving plans,
vacation or sick leave plans or policies  (except as disclosed on Schedule  4.17
hereto),  or disability  plans to which the Corporation is a party.  The accrued
vacation for each employee is scheduled on Schedule 4.17 hereto. The Corporation
maintains group heath insurance coverage on of its employees.

        4.18 The  Corporation  has filed all tax returns  and filings  which the
Corporation is required to file with the appropriate  government  agencies,  and
the information set forth in tax returns is true, correct and complete.  Without
limiting the generality of the  foregoing,  the income and  franchise/share  tax
returns (for U.S. and all required States) have been filed and is correct.

        4.19 Except as  reflected  on  Schedule  4.19,  there is no  litigation,
pending or threatened, against the Corporation.  Except as reflected on Schedule
4.19, there is no litigation, pending or threatened, against the Principals with
respect to the directional drilling business of the Corporation.

        4.20 Set  forth on  Schedule  4.20 is a list of all  permits,  licenses,
approvals or authorizations of any governmental  authority or other person which
are used to conduct the business of the Corporation.  All such permits, license,
approvals and  authorizations  are in full force and effect. To the knowledge of
Principals,  no  proceeding is pending to revoke or limit any of such permits or
otherwise  impose any conditions or obligations on the possession or transfer of
any of them,  to the  extent the same are  transferable.  Without  limiting  the
generality of the  foregoing,  as of Closing,  Seller and Principals are unaware
that the plan of Principals to build and operate motors and associated  downhole
equipment  will require  Purchaser to obtain a license from any person,  or will
infringe on any patent.

        4.21  Except as set forth on  Schedule  4.21,  no  officer,  director or
employee of the  Corporation,  and no relative  thereof:  (i) owns,  directly or
indirectly,  any interest in any tangible or intangible property, asset or right
which  the  Corporation  uses in its  business;  (ii) has any cause of action or
claim  against,  owes any amount  to, or is owed any amount by the  Corporation;
(iii) is a party to any Contract with the Corporation;  or (iv) is a supplier of
goods and/or services to or a subcontractor of Seller.


                                       12


        4.22 Investment  Representation  Letter.  At Closing,  Seller shall have
full  authority  to execute  and deliver the  Investment  Representation  Letter
attached hereto as Exhibit 4.22.

                              V. Debts, Liabilities

        5.1 Purchaser  shall be responsible for and shall pay only the debts and
liabilities  reflected on the Closing  Financial  Exhibit,  together  with those
debts and liabilities  incurred in the ordinary course of business subsequent to
12:00 midnight on August 31, 1997, none of which shall be the  responsibility of
Seller.

        5.2  Purchaser  shall not assume or become  liable to Seller,  or to any
other  person,  firm,  corporation  or  entity,  for any  other  liabilities  or
obligations  of Seller,  whether  accrued,  absolute,  contingent  or otherwise.
Seller and Principals  hereby  indemnify the Purchaser from all  liabilities and
obligations arising from operation of the Corporation prior to 12:00 midnight on
August 31, 1997,  other than those reflected on the Closing  Financial  Exhibit,
including, without limitation, any of the following not reflected on the Closing
Financial Exhibit: any indebtedness for borrowed money, any liability for taxes,
any liability for goods or services purchased,  sold or rendered, or any suit or
claim  seeking  recovery  for injury to persons or property  resulting  from any
product  or  service  heretofore  sold  or  rendered  by the  Corporation,  plus
reasonable attorney fees; provided that such indemnity shall be secondary to any
and all insurance available, including but not limited to insurance purchased by
the Corporation  prior to Closing and insurance  purchased by the Corporation or
Purchaser subsequent to Closing.

        5.3  Purchaser  agrees to indemnify  Seller from and against any and all
claims, damages, losses, charges,  liability and expenses,  including reasonable
attorney  fees,  imposed upon the Sellers but arising out of or  resulting  from
operation of the  business  from and after 12:00  midnight on the Closing  Date;
provided  that  such  indemnity  shall  be  secondary  to any and all  insurance
available,  including but not limited to insurance  purchased by the Corporation
prior to  Closing  and  insurance  purchased  by the  Corporation  or  Purchaser
subsequent to Closing.



                                       13


                 VI. Representations and Warranties of Purchaser

        6.1 Purchaser is a  corporation  duly  organized and existing  under the
laws of the State of Delaware.  Execution and closing of this Agreement has been
authorized by all requisite authority of Purchaser.

        6.2  Purchaser has obtained all  necessary  approvals of all  regulatory
bodies for the execution of this Agreement and the closing of this transaction.

        6.3 Timely  Filing of Reports.  Purchaser  covenants  and agrees that it
will file all reports  required to be filed by it pursuant to the Securities Act
of 1933 and the  Securities  Exchange Act of 1934,  each as amended from time to
time, and the rules and regulations adopted by the Commission thereunder (or, if
Purchaser is no longer required to file such reports,  it will, upon the request
of Seller,  make publicly  available such other information for so long as it is
necessary to permit sales under Rule 144 promulgated under the Securities Act of
1933, as amended), and it will take such further action as Seller may reasonably
request,  all to the extent  required from time to time to enable Seller to sell
shares of Common Stock without  registration under the Securities Act within the
limitations of the  exemptions  provided by Rule 144, as the same may be amended
from time to time,  or any similar rule or regulation  hereafter  adopted by the
Commission.  Upon the  request of  Seller,  Purchaser  will  deliver to Seller a
written  statement  as to  whether  it  has  complied  with  such  requirements.
Purchaser shall bear all costs associated with compliance of this Section 6.3.

        6.4 NASDAQ Quotation.  Purchaser agrees to use all reasonable efforts to
cause the shares of Purchaser's Common Stock issuable to Seller pursuant to this
Agreement to be approved for  quotation on the NASDAQ Stock  Market,  subject to
official notice of issuance, on or before the Closing Date.

        6.5 Registration Rights. On the Closing Date, Purchaser and Seller shall
each execute and deliver a Registration  Rights  Agreement  providing that if at
any  time  and  from  time  to time  Purchaser  shall  determine  to  pursue  an
underwritten  public  offering of its Common  Stock,  other than a  registration
relating to securities  offered under employee  benefit plans,  Purchaser  shall
promptly give written notice to Seller  thereof,  and shall request the managing
underwriter  or  underwriters  to  include  in  such  registration,  and  in any
underwriting  involved  therein,  the number of shares of Common  Stock owned by
Seller as specified in a written request from Seller.  Such Registration  Rights
Agreement shall provide that all expenses incident to Purchaser's performance of
or  compliance  with the  registration  obligations  pertaining to shares of its
Common Stock held by Seller, including without limitation,  all registration and
filing fees payable to the Securities and Exchange Commission (the "Commission")
and the National  Association of Securities  Dealers,  Inc.,  printing expenses,
fees and  disbursements  of counsel for Purchaser and its independent  certified
public  accountants,   but  excluding  underwriting  discounts  and  commissions
attributable to the sale of shares held by Seller,  shall be borne by Purchaser.
In the event the number of shares  requested to be  including  in the  offering,
when  combined with the number of shares to be included in the offering by other
selling  shareholders  is greater,  in the opinion of the managing  underwriter,
than can be accommodated without adversely affecting the proposed offering, then
the  amount of shares of Common  Stock  held by Seller  included  in the  Seller
request  for  registration,  as well as the  number of  securities  of any other
selling  shareholders,  so long as such other selling  shareholders  do not hold
senior registration rights, shall be proportionately  reduced to a number deemed
satisfactory by the managing underwriter.


                                       14


                                  VII. Closing

     Closing  shall  occur not later  than ten (10) days  following  receipt  by
Purchaser of the items required by Section 7.1(iv), below, but in no event later
than October 15, 1997 (the "Closing  Date"),  effective at midnight Central time
on the Effective Date. At Closing:

        7.1 Sellers shall deliver to Purchaser the following:

          (i)    a  fully  executed  Transfer,   Bill  of  Sale  and  Assumption
                 Agreement,  in the form attached  hereto as Schedule  7.1(i)(1)
                 and a fully executed Assignment and Assumption of Real Property
                 Lease in the form attached hereto as Schedule 7.1(i)(2); and;

          (ii)   Certificates of title to all vehicles;

          (iii)  the Employment  Agreements described in Article X hereof, fully
                 executed by Sellers; and

          (iv)   Minutes,  certified by Principals, of the meetings of the Board
                 of  Directors  and   Shareholders  of  Seller,   approving  the
                 execution and performance of this contract by Seller,  together
                 with all notices related thereto;

          (v)    the Investment Representation Letter attached hereto as Exhibit
                 4.22, fully executed by Seller; and

          (vi)   such other documents and agreements as are reasonably  required
                 to complete the transaction contemplated hereby.

        7.2 At Closing, Purchaser shall deliver to Sellers the following:

          (i)    the cash referred to in Article II;

          (ii)   the Notes referred to in Article II;


                                       15


          (iii)  the Employment  Agreements described in Article X hereof, fully
                 executed by Purchaser;

          (iv)   a resolution of Purchaser's Board of Directors,  approving this
                 Agreement and the Closing thereof;

          (v)    a  fully  executed  Transfer,   Bill  of  Sale  and  Assumption
                 Agreement,  in the form attached  hereto as Schedule  7.1(i)(1)
                 and a fully executed Assignment and Assumption of Real Property
                 Lease in the form attached hereto as Schedule 7.1(i)(2); and;

          (vi)   such other documents and agreements as are reasonably  required
                 to complete the transaction contemplated hereby.

                           VIII. Conditions to Closing

     This  Agreement  and  the  Closing  thereof  is  subject  to the  following
conditions:

        8.1 All  representations  and warranties made by the Seller,  Principals
and Purchaser shall be true and correct as of the Closing Date;

        8.2  Seller  shall  furnish  a  certificate  of  good  standing  for the
Corporation, in the State of Texas.

        8.3 Seller shall  furnish the complete  results,  including  copies of a
Form UCC-11 Search for financing  statements relating to the Corporation and all
of the  Assets,  showing  no liens  other than those  reflected  on the  Closing
Financial Exhibit.

        8.4  Seller's  execution,  delivery or  performance  of this  agreement,
including  without  limitation  the  execution  and  completion of any agreement
contemplated  hereby,  shall be  submitted to and approved by a vote of Seller's
shareholders pursuant to Article 5.10 of the Texas Business Corporation Act.


                                       16


        8.5  Purchaser's  execution,  delivery or performance of this agreement,
including  without  limitation  the  execution  and  completion of any agreement
contemplated hereby, shall be submitted to and approved by a vote of Purchaser's
Board of Directors.

                IX. Access to Information, Post-Closing Matters,

                              Continued Assurances

        9.1 Prior to Closing.  Prior to Closing,  Purchaser  shall have full and
complete  access to the Assets,  along with all offices  and  facilities  of the
Corporation  and to the  Corporation'  books  and  records  for the  purpose  of
reviewing same in connection with the transaction  contemplated  hereby.  Should
the  transaction  contemplated  hereby  not  close  for any  reason  whatsoever,
Purchaser  agrees to maintain the  confidentiality  of all information  gathered
during its evaluation of the Corporation'  business and the Corporation' assets,
and hereby  agree not to use in any way, or disclose  such  information,  unless
Purchaser is legally obligated to disclose any such information.

        9.2 Continued Access to Records.

             9.2.1 From and after closing,  and for three years thereafter,  the
corporate, financial and other records and documents of the Corporation prior to
Closing,  not otherwise  provided for herein (the "Books") shall be available on
three days prior written notice during normal  business hours of 8:00 am to 5:00
pm Columbus, Mississippi time for inspection, use and copying by Seller.

        9.3 Continued  Assurances.  Purchaser,  Seller and  Principals  will do,
execute,  acknowledge and deliver, all and every such further acts, conveyances,
transfer orders,  notices,  releases and acquittances and such other instruments
as may be reasonably  necessary or appropriate  to assure to Purchasers,  Seller
and Principals,  their successors and assigns,  more fully all of the respective
properties,   rights,  titles  and  interests,  estates,  remedies,  powers  and
privileges by this  agreement  granted,  bargained,  sold,  conveyed,  assigned,
transferred,  set over and delivered,  or otherwise  vested in Purchaser  and/or
Seller or intended to be so.  Without  limiting the generality of the foregoing,
Seller,   Principals  and  Purchaser   agree  to  provide  such  statements  and
confirmations as are required from time to time by their respective  accountants
in their continued work for the parties,  including  without  limitation,  audit
confirmations.

        9.4 Payment of Tax Payable.  The Tax Payable shall be paid to or for the
benefit of Seller on January 14,  1997,  by wire  transfer or other  immediately
available funds, as directed by Seller.

        9.5 Final Action by Sellers.  The Seller shall  prepare and file all tax
filings  required  of it,  including  income tax  returns.  Within 30 days after
Closing,  Seller  shall  change  its  name,  so  as to  not  include  the  words
"Diamondback" or "Directional."


                                       17


        9.6  Stock  Options  Reserved.  Purchaser  has  reserved  stock  options
covering  250,000  shares of  Purchaser's  stock  for  distribution  to  certain
employees, other than Principals, said employees to be hired at the direction of
Alan Mann and Purchaser. Said options shall be distributed annually according to
vesting schedules as set forth in employment agreements to be executed with such
employees as approved by Alan Mann and Purchaser.  Said options are to be issued
pursuant to  Purchaser's  Omnibus Stock Option Plan, as approved by  Purchaser's
Shareholders.  Nothing in this  Agreement,  including  without  limitation  this
Section  9.6,  shall be deemed for the benefit of such  employees,  it being the
intent and  agreement of the parties  that such  employees  are not  third-party
beneficiaries of this Agreement.

        9.7 Investment in Capital Items. Purchaser commits to make approximately
Four Million  Dollars  ($4,000,000)  available to the business which operates or
uses the name and/or  trademark sold  hereunder,  in the form of a loan or other
appropriate financial undertaking,  for capital improvements.  These investments
are to be undertaken on projects as agreed by Alan Mann and Purchaser,  it being
anticipated  that these  investments will be made during the calendar years 1998
and 1999.

        9.8 Post-Closing  Performance Standard,  Possible Notes Adjustment.  The
Notes are  subject to a possible  downward  adjustment,  as set forth in Section
9.8.2 and 9.8.3,  if the  results of the  directional  drilling  business  to be
formed by  Purchaser  with the Assets,  to be known as  Diamondback  Directional
Company  and  to  be  operated  as a  separate  division  of  Purchaser,  or  of
Purchaser's subsidiary, Boone Wireline Co., Inc. (herein, the "Business") do not
meet the performance standards set forth in Section 9.8.1.

             9.8.1  Performance  Standard.  The  Performance  Standard  shall be
ninety  percent  (90%) of the sum of: (i) the gross  receipts  of Seller for the
period  January 1, 1997  through  August 31,  1997,  as reflected on the Closing
Financial  Exhibit,  and (ii) the gross  receipts of the Business for the period
September 1, 1997 through December 31, 1997.

             9.8.2  Adjustment  for 1998 results.  If the gross  receipts of the
Business for the period  September  1, 1997  through  August 31, 1998 (the "1998
Results") are not at least equal to the Performance Standard, then the principal
balance of the Notes, as previously  adjusted,  shall be adjusted  downward,  as
follows:

             (a) the balance of the Notes,  after  considering  the  adjustments
required by Section 3.3 hereof  (the "1998  Balance"),  shall be divided by two,
the result of which shall be the "1998 Initial Amount";

             (b) the  1998  Initial  Amount  shall  be  multiplied  by the  1998
Results,  and the product thereof shall be divided by the Performance  Standard,
the final product thereof being the "1998 Final Amount"; and

             (c) the  balance of the Notes,  as  previously  adjusted,  shall be
reduced by the  difference  between the 1998  Initial  Amount and the 1998 Final
Amount.

                                       18


             9.8.3  Adjustment  for 1999 results.  If the gross  receipts of the
Business for the period  September  1, 1998  through  August 31, 1999 (the "1999
Results") are not at least equal to the Performance Standard, then the principal
balance of the Notes, as previously  adjusted,  shall be adjusted  downward,  as
follows:

             (a) the balance of the Notes,  after  considering  the  adjustments
required by Section 3.3 hereof and the adjustment required by Section 9.8.2 (the
"1999 Balance"), shall be divided by two, the result of which shall be the "1999
Initial Amount";

             (b) the  1999  Initial  Amount  shall  be  multiplied  by the  1999
Results,  and the product thereof shall be divided by the Performance  Standard,
the final product thereof being the "1999 Final Amount"; and

             (c) the  balance of the Notes,  as  previously  adjusted,  shall be
reduced by the  difference  between the 1999  Initial  Amount and the 1999 Final
Amount.

                  X. Employment and Non-Competition Agreements

        10.1 At or prior to Closing, Purchaser and Alan Mann shall enter into an
Employment Agreement calling for his employment with Purchaser, which Employment
Agreement shall include a non-competition agreement,  prohibiting competition in
the Directional Drilling Business in the States of Texas, Louisiana, New Mexico,
Wyoming, Colorado,  Montana,  Oklahoma,  Alabama, North Dakota, South Dakota and
Mississippi,  which area is deemed  reasonable  by the parties  considering  the
prior and anticipated business plan of the Purchaser. The form of the Employment
Agreement is attached hereto as Schedule 10.1.

                                       19


        10.2 At or prior to Closing,  Purchaser and Dale Jowers shall enter into
an  Employment  Agreement  calling  for his  employment  with  Purchaser,  which
Employment  Agreement  shall include a  non-competition  agreement,  prohibiting
competition  in the  Directional  Drilling  Business  in the  States  of  Texas,
Louisiana,  New Mexico, Wyoming,  Colorado,  Montana,  Oklahoma,  Alabama, North
Dakota,  South Dakota and  Mississippi,  which area is deemed  reasonable by the
parties  considering the prior and  anticipated  business plan of the Purchaser.
The form of the Employment Agreement is attached hereto as Schedule 10.2.

        10.3 It is agreed by the parties hereto that, in the event of any breach
of the non-competition  provisions of the Employment Agreements,  legal remedies
available to the Purchaser would be inadequate.  Therefore, in the event of such
breach,  the  Purchaser  is  specifically  authorized  to  apply  to a court  of
competent jurisdiction to enjoin any violation of such provision.

                                XI. No Assignment

     Neither this Agreement,  nor any right,  interest or obligation  hereunder,
may be  assigned  by either of the  parties  hereto  without  the prior  written
consent of the other party(s),  except that Purchaser may assign this Agreement,
in whole or in part, to its subsidiary  Boone Wireline Co., Inc.,  provided that
no such assignment shall relieve Purchaser of any obligations created hereunder.

                           XII. Multiple Counterparts

     Any number of counterparts of this Agreement may be executed, and each such
counterpart  shall  be  deemed  to be  an  original  instrument,  but  all  such
counterparts  together shall constitute but one and the same agreement,  binding
on both the parties  notwithstanding  that both parties have not signed the same
counterpart.

                               XIII. Modifications

     This Agreement contains the entire agreement between the parties, and there
shall be no  waiver,  modification  or  change  of the  terms of this  Agreement
without the written approval of the parties hereto.

                                  XIV. Captions

     The  titles  of the  Articles  and  Paragraphs  and  the  captions  of this
Agreement have been assigned  thereto for  convenience and reference only and in
no way  define,  describe,  extend,  or limit,  nor be  construed  as  limiting,
defining or affecting the substantive terms, scope or intent of this Agreement.

                  XV. Entire Agreement, Integration, Amendment

     This Agreement,  together with the accompanying  Schedules attached hereto,
constitutes the entire  agreement  among the parties  hereto,  as a complete and
final  integration  thereof.  All  understandings  and agreement  heretofore had
between  and  among the  parties  with  respect  to the  subject  matter of this
Agreement  are merged into this  Agreement,  which  alone  fully and  completely
expresses  their  understandings,   and  this  Agreement  supersedes  all  prior
memoranda, correspondence, conversations and negotiations.


                                       20


     There  have  been  and are no  agreements,  representations  or  warranties
between the parties other than those set forth or provided herein.

     No  representation  or warranty made by any party which is not contained in
this  Agreement or expressly  referred to herein has been relied on by any party
in entering into this Agreement.

                                  XVI. Notices

     All notices, requests, demands, and other communications hereunder shall be
in  writing  and shall be deemed to have  been  duly  given and  delivered  upon
personal  delivery  or, if mailed,  upon  depositing  such  notice in the United
States mail, with first class postage prepaid, and

                           (i)      If to the Purchaser, to:

                                    Black Warrior Wireline Corp
                                    3748 Highway 45, N
                                    Post Office Box 9188
                                    Columbus, Mississippi  39705
                                    Attn:   William L. Jenkins

                           (ii)     If to the Seller, to:

                                    Diamondback Directional, Inc.
                                    13843 Highway 105 West, Suite 212
                                    Conroe, Texas  77304

                           (iii)    If to Principals, to:

                                    Mr. Alan Mann
                                    13843 Highway 105 West, Suite 212
                                    Conroe, Texas  77304

                                    Mr. Michael Dale Jowers
                                    13843 Highway 105 West, Suite 212
                                    Conroe, Texas  77304

Any party may change the address to which  notices are to be  delivered  to such
party, by notice given in accordance with this subparagraph to the other party.

                               XVII. Governing Law

     The  laws  of  the  State  of   Mississippi   shall  govern  the  validity,
construction, and interpretation of this Agreement.

                              XVIII. Miscellaneous

        18.1 Gender,  Number. All personal pronouns used in this Agreement shall
include all genders, whether used in the masculine,  feminine, or neuter gender.
Singular nouns and pronouns shall include the plural, as may be appropriate, and
vice versa.



                                       21


        18.2 Severability.  All of the terms, provisions, and conditions of this
Agreement  shall be deemed to be  severable in nature.  If, for any reason,  the
provisions  hereof are held to be invalid or unenforceable to any extent, to the
extent that such  provisions  are valid and  enforceable,  a court of  competent
jurisdiction  shall construe and interpret this Agreement to provide for maximum
validity and enforceability of this Agreement.

        18.3 Successors.  This Agreement shall bind the parties and their heirs,
successors, assigns, next of kin, and personal representatives.

        18.4  Construction.  This  Agreement  shall be construed in its entirety
according to its plain meaning and shall not be construed  against the party who
provided or drafted it.

        18.5 Party.  The terms  party and  parties  refer to the parties to this
Agreement, unless otherwise stated.

        18.6  Subdivision.  References to  paragraphs,  subparagraphs,  and like
subdivisions  are  references to such  subdivisions  of this  Agreement,  unless
otherwise stated.

        18.7 Hereof. Terms such as "hereof",  "hereto",  "hereunder",  "herein",
and the like refer to the entire  Agreement and not only to the  subdivision  in
which such terms appear.

        18.8 Costs on  Default.  In the event of any  default by any party as to
any duty,  warranty or undertaking owed to another party,  which default results
in  efforts by the  non-defaulting  party to remedy  same  (whether a lawsuit is
filed or not), the defaulting party shall pay, in addition to such other sums as
may be due hereunder, all costs and expenses of such efforts, including, but not
limited to, a reasonable attorney's fee.



                                       22


     IN WITNESS  WHEREOF,  the parties  have  hereunto set their hands and seals
effective on the day and date first above written.

                                              PURCHASER:

WITNESS:                                      BLACK WARRIOR WIRELINE CORP.


                                              BY:
                                                   William L. Jenkins, President

                                              SELLER:

WITNESS:                                      DIAMONDBACK DIRECTIONAL, INC.


                                              BY:
                                                   Alan Mann, President

WITNESS:                                      PRINCIPALS:



                                              ALAN MANN
WITNESS:


                                              MICHAEL DALE JOWERS



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