AGREEMENT FOR PURCHASE AND SALE


       This  Agreement  for  Purchase  and Sale (the  "Agreement"),  is made and
entered as of January 23, 1998, by and between Black Warrior  Wireline  Corp., a
Delaware corporation ("Black Warrior"),  and St. James Capital Partners, L.P., a
Delaware limited partnership, and its assigns or transferees pursuant to Section
5.5  ("Purchaser"),  and sets  forth the terms  and  conditions  of the sale and
purchase of an 8% Convertible  Promissory Note in the original  principal amount
of up to  $10,000,000,  substantially  in the form attached  hereto as Exhibit A
(the "Note").  For purposes of this  Agreement,  the term "Seller" is defined to
mean Black Warrior and the Active Subsidiary (defined in Section 2.8 below).

       WHEREAS,  Seller  desires to issue and sell to  Purchaser,  and Purchaser
desires to purchase and accept from  Seller,  the Note in the form of Exhibit A,
on the terms and subject to the conditions set forth herein.

       WHEREAS, the obligations of Seller under the Note are secured by (i) that
certain Borrower Security Agreement dated as of June 5, 1997, between Seller and
Purchaser,  as amended on October 10,  1997,  and which is amended and  modified
pursuant to that certain Second Amendment and Ratification of Borrower  Security
Agreement  substantially in the form attached hereto as Exhibit B-1 (the "Second
Amendment of Borrower  Security  Agreement"),  and (ii) that certain  Subsidiary
Security  Agreement  (herein so called)  dated as of June 5, 1997,  between  the
subsidiaries of Black Warrior and Purchaser, as amended on October 10, 1997, and
which is hereby amended and modified  pursuant to that certain Second  Amendment
and  Ratification of Subsidiary  Security  Agreement,  substantially in the form
attached  hereto as Exhibit B-2 (the "Second  Amendment of  Subsidiary  Security
Agreement"),  and are guaranteed by that certain Subsidiary Guaranty dated as of
June 5, 1997, by the  subsidiaries  of Black  Warrior in favor of Purchaser,  as
amended on October 10, 1997, and which is amended and modified  pursuant to that
certain Second Amendment and Ratification of Subsidiary  Guaranty  substantially
in the form attached hereto as Exhibit B-3 (the "Second  Amendment of Subsidiary
Guaranty").

       WHEREAS,  Seller and  Purchaser  desire to make certain  representations,
warranties and  agreements in connection  with the purchase and sale of the Note
contemplated hereby.

       WHEREAS,  Seller desires to sell to Purchaser  warrants  ("Warrants")  to
purchase  20,000 shares of Seller's  common  stock,  par value $0.0005 per share
(the "Common Stock"),  for each $100,000  advanced by Purchaser to Black Warrior
pursuant to the Note,  which Warrants shall have the terms and be subject to the
conditions set forth in the form of Warrants attached hereto as Exhibit C.

       WHEREAS, Seller desires to grant to Purchaser certain registration rights
in respect of the Common  Stock that may be acquired on  conversion  of the Note
and on the exercise of the Warrants,  which  registration  rights shall have the
terms and be  subject to the  conditions  set forth in the  Registration  Rights
Agreement  dated as of June 5, 1997,  as amended on  October  10,  1997,  and as
amended and  modified by that certain  Amendment  No. 2 to  Registration  Rights
Agreement substantially in the form attached hereto as Exhibit D (the "Amendment
No. 2 to Registration Rights Agreement").

       WHEREAS,  this  Agreement,  the Note,  the Second  Amendment  to Security
Agreement,  the Second Amendment to Subsidiary  Security  Agreement,  the Second
Amendment to  Subsidiary  Guaranty,  the  Warrants,  and the  Amendment No. 2 to
Registration  Rights  Agreement  are  collectively  referred  to  herein  as the
"Transaction Documents".


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       NOW, THEREFORE, in consideration of the premises and the representations,
warranties and agreements herein, the parties agree as follows:

                                    ARTICLE I

                                PURCHASE AND SALE

       1.1 Purchase and Sale of the Note and the Warrants.  Subject to the terms
of this Agreement,  Seller agrees to and does hereby issue, sell and deliver the
Note and the  Warrants to  Purchaser  at the Closing  (as defined  herein),  and
Purchaser  agrees  to and  does  hereby  purchase  and  accept  the Note and the
Warrants from Seller.

       1.2 Consideration for Purchase of the Note.  Subject to the terms of this
Agreement,  Purchaser hereby agrees to pay to Seller,  by check or wire transfer
to the  account of Black  Warrior,  $10,000,000,  as the  consideration  for the
purchase  of the Note (the "Note  Consideration").  It is the  intention  of the
parties that the Note Consideration shall be advanced in multiple advances, with
$1,000,000  being  paid  at the  time of the  execution  of the  Asset  Purchase
Agreement  (the  "Phoenix   Agreement")  between  Seller  and  Phoenix  Drilling
Services,  Inc., and an additional $1,000,000 being paid on March 1, 1998 if the
acquisition  made the  subject of the Phoenix  Agreement  has not been closed by
such date. Interest under the Note shall accrue on amounts actually advanced.

       1.3 Consideration  for Purchase of the Warrants.  Subject to the terms of
this  Agreement,  Purchaser  hereby  agrees to pay to  Seller,  by check or wire
transfer to the account of Black  Warrior,  $100,000 (or $0.05 per share subject
to the  Warrants) as the  consideration  for the  purchase of the Warrants  (the
"Warrant  Consideration";  the Note Consideration and the Warrant  Consideration
are collectively referred to herein as the "Consideration"). It is the intention
of the parties that the Warrant Consideration shall be paid in multiple payments
with  $10,000  being  paid at  Closing,  and  with  $1,000  being  paid for each
additional $100,000 advanced by Purchaser to Seller hereunder.

       1.4 Origination Fee. Seller agrees to pay Purchaser at Closing a one-time
origination  fee in the  amount  of  $125,000  (the  "Origination  Fee") for the
payment of the Note Consideration.

       1.5  Subordination  to Future  Financing.  Purchaser agrees to enter into
subordination  agreements with senior secured lenders that provide  financing to
Seller in an amount  not to exceed  $4,500,000  with  respect to a term loan and
$3,000,000  with respect to a revolving  credit  facility (in this section,  the
"Senior  Lenders"),  pursuant to which Purchaser would  subordinate its security
interests  and rights to the  security  interests  of the Senior  Lenders.  Such
subordination  agreements  shall be on terms and  conditions  acceptable  to all
parties  (including  Purchaser,  which  agrees to  negotiate  in good faith with
respect to the subordination  agreement) at the time they are entered into. Such
subordination  agreements  shall not obligate  Purchaser to "stand  still" for a
period of time longer than 60 days after a default by Seller in its  obligations
to the Senior Lender(s).

       1.6  Future  Financings.  If  Seller,  at any time so long as the Note is
outstanding,  intends  to  issue or sell  any  shares  of  capital  stock,  debt
securities or securities  convertible into,  exchangeable for or exercisable for
shares of capital stock or debt  securities (a  "Financing"),  Seller shall give
Purchaser  written  notice (the "Offer") of its intent to engage in a Financing,
specifying its basic terms and conditions.  If Purchaser gives notice to Seller,
specifying  Purchaser's  basic  terms and  conditions,  of its intent to provide
Financing on a basis  materially  similar to the proposal set forth in the Offer
within five (5) business days after receipt of the Offer (a "Financing Notice"),
then Seller shall be obligated to


                                       2




consummate the Financing only with Purchaser and Purchaser shall be obligated to
provide the financing at the time committed by the third party whose  commitment
gave rise to the Offer.  If  Purchaser  does not within five (5)  business  days
after receipt of the Offer give to Seller a Financing Notice, Purchaser shall be
deemed to have waived its rights to provide the  Financing  under this  Section,
and Seller may thereafter obtain such Financing from a third party or parties if
such third party  Financing is on the same basic terms and  conditions  as those
set forth in the Offer.  Any proposed  Financing on terms  materially  different
from those basic terms and  conditions  in the Offer deemed  waived by Purchaser
shall require a new Offer and  compliance by Seller with the  provisions of this
Section.  Notwithstanding the foregoing,  Seller shall not be required to comply
with this Section in connection  with: (i) the issuance and sale of Common Stock
or  convertible  securities in connection  with any employee  stock option plan,
arrangement  or  agreement  now or  hereafter  in effect;  (ii) the  issuance of
capital  stock of Seller upon  exercise of the Warrants or  otherwise  issued to
Purchaser or its assigns;  (iii) the issuance of capital  stock upon exercise of
any stock  purchase  warrant or option  (other than the  options  referred to in
clause (i) above) or other convertible  security  outstanding on the date hereof
or hereafter issued;  (iv) a public offering of securities;  (v) any loan from a
regular  commercial  lending  source;  or (vi) any  securities  issued  with the
favorable vote of Purchaser's designee as a director of the Seller.

       1.7 Other Permitted Debt. Seller shall be permitted to incur indebtedness
for  borrowed  money for the  purchase or financing of equipment in the ordinary
course of business, in an amount not to exceed $7,500,000.

       1.8 Future Advances.  The Purchaser shall make additional advances of the
Note Consideration and Warrant  Consideration upon delivery by the Seller of the
following:

              (a) a written  request  for such  advance at the  address  for the
       Purchaser in Section 5.2 hereof,  setting forth (i) the amount requested,
       (ii) the  account to which such  advance is to be funded,  (iii) the date
       for which such  advance is  requested  and (iv) the  proposed  use of the
       proceeds of such advance, which shall be satisfactory to Purchaser in its
       reasonable discretion;

              (b) a certificate of an officer of Seller  certifying  that, as of
       the date the  advance is  requested,  no Event of Default  hereunder  has
       occurred, that Seller is in compliance with all covenants herein and that
       all of the  representations  and warranties set forth herein are true and
       correct as of such date;

              (c) a Warrant in favor of Seller,  executed  by  Purchaser,  for a
       number of shares equal of Common  Stock equal to 20,000  shares times the
       multiple of $100,000 represented by the requested advance;

              (d) such security documents respecting the assets of the Seller or
       its Active Subsidiary as may be reasonably requested by Purchaser;

              (e) such other documents, certificates,  agreements or instruments
       as may be reasonably requested by Purchaser in connection with any or all
       of the foregoing; and

              (f) payment by Seller of any and all  expenses or other amount due
       and owing to Purchaser.

                                   ARTICLE II

                    REPRESENTATIONS AND WARRANTIES OF SELLER


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       Seller  represents  and warrants to Purchaser  that each of the following
statements (i) are true and correct on the date hereof and (ii) will be true and
correct  in all  material  respects  on  the  date  each  advance  of  the  Note
Consideration is made:

       2.1 Organization,  Standing and Qualification.  Each of Black Warrior and
the Active  Subsidiary is a corporation duly organized,  validly existing and in
good  standing  under  the laws of the  state of its  incorporation  and has all
requisite corporate power and authority to own, lease and operate its properties
and to carry on its business as it is now being conducted. Each of Black Warrior
and the Active  Subsidiary is licensed and qualified to do business as a foreign
corporation in each jurisdiction in which the character of its properties, owned
or leased,  or the nature of its activities makes such  qualification or license
necessary.

       2.2  Authority;  No  Defaults.  Each of  Black  Warrior  and  the  Active
Subsidiary  has all  requisite  corporate  power and authority to enter into the
Transaction  Documents and to consummate the transactions  contemplated thereby.
The execution and delivery of the Transaction  Documents and the consummation of
the transactions contemplated thereby have been duly authorized by all necessary
corporate  action on the part of Seller.  The  Transaction  Documents  have been
executed and delivered by Seller and constitute the valid and binding obligation
of Seller,  enforceable in accordance  with their terms,  subject to bankruptcy,
insolvency,  moratorium  and other  similar  laws  affecting  creditors'  rights
generally  and  general   principles  of  equity  (regardless  of  whether  such
enforceability is considered in a proceeding in equity or at law). The execution
and delivery of the  Transaction  Documents do not, and the  consummation of the
transactions  contemplated  hereby and thereby will not, conflict with or result
in a breach of or the  acceleration  of any  obligation  under,  or constitute a
default or event of default  (or event  which,  with  notice or lapse of time or
both,  would  constitute a default or event of default) under,  any provision of
any charter,  bylaw,  indenture,  mortgage,  lien, lease,  agreement,  contract,
instrument, order, judgment, decree, ordinance or regulation, or any restriction
to which any  property  of Seller is  subject or by which  Seller is bound,  the
effect of which would be materially  adverse to Seller.  Seller is not, nor does
Seller have knowledge that it is alleged to be, in material violation or default
of any  applicable  law,  statute,  order,  rule or  regulation  promulgated  or
judgment  entered by any court,  administrative  agency or  commission  or other
governmental  agency or  instrumentality,  domestic or foreign (a  "Governmental
Entity"),  relating to or affecting the  operation,  conduct or ownership of the
property or business of Seller.

       2.3 Approvals. There is no legal impediment to the execution and delivery
of  the  Transaction   Documents  by  Seller  or  to  the  consummation  of  the
transactions  contemplated  thereby,  and no filing  or  registration  with,  or
authorization,  consent or approval of, a Governmental  Entity,  shareholders or
any  other  third  party is  necessary  for the  consummation  by  Seller of the
transactions contemplated thereby.

       2.4  Charter and  Bylaws.  Seller has  furnished  to  Purchaser  true and
complete  copies of its  charter  and  bylaws,  each as  amended  to date and as
presently in effect.

       2.5 SEC Documents.

              (a) Seller has made all filings with the  Securities  and Exchange
       Commission ("SEC") that it has been required to make under the Securities
       Act of 1933,  as  amended  (the  "Securities  Act"),  and the  Securities
       Exchange Act of 1934, as amended (the "Exchange  Act") since December 31,
       1994. Seller has provided to Purchaser true,  complete and correct copies
       of Seller's  annual  report on Form 10-K  ("Seller's  Form 10-K") for the
       fiscal year ended


                                       4





       December  31,  1996,  together  with  all  amendments  thereto,  Seller's
       quarterly report on Form 10-Q for the fiscal quarters ended June 30, 1997
       and September 30, 1997, together with all amendments thereto, and any and
       all filings with the SEC made by Seller (including all requested exhibits
       to such filings)  since the filing of said Form 10-K (all such  documents
       that have been filed with the SEC,  as  amended,  are  referred to as the
       "Seller SEC  Documents").  As of their  respective  dates,  and except as
       amended,  Seller SEC Documents complied in all material respects with the
       requirements  of the  Securities Act or the Exchange Act, as the case may
       be, and none of Seller SEC Documents  contained any untrue statement of a
       material  fact or omitted to state a material  fact required to be stated
       therein or  necessary  to make the  statements  therein,  in light of the
       circumstances under which they were made, not misleading.

              (b) The financial  statements of Seller included in the Seller SEC
       Documents  comply as to form in all  material  respects  with  applicable
       accounting  requirements  and with the published rules and regulations of
       the SEC with  respect  thereto,  have been  prepared in  accordance  with
       generally accepted accounting principles ("GAAP") applied on a consistent
       basis  during the periods  involved  (except as may be  indicated  in the
       notes thereto or, in the case of the unaudited  statements,  as permitted
       by Form 10-Q) and fairly present  (subject,  in the case of the unaudited
       statements,  to normal  recurring  audit  adjustments)  the  consolidated
       financial position of Seller as of the dates thereof and the consolidated
       results of its  operations  and cash flows for the  periods  then  ended.
       Since September 30, 1997, (i) there have been no material adverse changes
       in Seller's business, operations or financial condition and (ii) Seller's
       operations  have been conducted in the ordinary course of business except
       as disclosed in writing to Purchaser.

       2.6  Litigation.  Except as set forth on Schedule  2.6, as of the date of
this Agreement,  there is no suit, action,  proceeding or investigation  pending
or, to the best knowledge of Seller, threatened against or affecting Seller, nor
is there any outstanding  judgment,  order,  writ,  injunction or decree against
Seller, which judgment would have a material adverse effect on Seller. Seller is
not subject to any court order, writ, injunction,  decree,  settlement agreement
or  judgment  that  contains  or  orders  any  on-going   obligations,   whether
prohibitory  or  mandatory  in nature,  the  performance  of which  would have a
material adverse effect on Seller.

       2.7  Capitalization.  Black Warrior has  authorized  capital stock of (a)
12,500,000  shares of Common Stock of which,  as of the date  hereof,  there are
2,964,785 shares issued and  outstanding,  and (b) 2,500,000 shares of preferred
stock  of  which,  as of the  date  hereof,  there  are  no  shares  issued  and
outstanding . All of the issued and outstanding shares of Common Stock were duly
and  validly  issued  and  are  fully  paid  and  non-assessable.  None  of  the
outstanding  shares  of  Common  Stock  has  been  issued  in  violation  of any
preemptive  rights of the current or past stockholders of Seller. As of the date
hereof,  Black  Warrior has  reserved  for  issuance (i) an aggregate of 760,000
shares of Common  Stock  issuable  on issuance  of stock  options to  employees,
officers,  directors  and other  persons,  and the Board of  Directors  of Black
Warrior  has  approved  amendments  to the plans in respect  of such  options to
increase the shares available  thereunder to an aggregate of 1,260,000 shares of
Common Stock,  subject to the approval of the shareholders of Black Warrior, and
(ii) an aggregate of 1,707,250  shares of Common Stock  issuable on the exercise
of outstanding warrants,  options, or of convertible securities other than those
listed in (i) above.  Except as set forth on Schedule 2.7 or described  above in
(i) and (ii), there are no outstanding options,  warrants or rights to subscribe
for, or  commitments of any character  whatsoever  relating to, or securities or
rights  convertible  into or  exchangeable  for,  shares of the capital stock of
Black Warrior or contracts, commitments, understandings or arrangements by which
Black Warrior is or may be obligated to issue  additional  shares of its capital
stock or options,  warrants,  or rights to  purchase  or acquire any  additional
shares of its capital  stock.  All of the Common Stock issued on the exercise of
the Warrants will be fully paid, non-assessable and free and clear of any

                                       5




Encumbrances.  As used in this  Agreement,  the  term  "Encumbrance"  means  and
includes (i) any  security  interest,  mortgage,  deed of trust,  lien,  charge,
pledge,  proxy, adverse claim, equity, power of attorney,  or restriction of any
kind,  including  but not limited to, any  restriction  or servitude on the use,
transfer,  receipt of income,  or other exercise of any attributes of ownership,
and (ii) any Uniform Commercial Code financing statement or other public filing,
notice or record that by its terms  purports  to  evidence or notify  interested
parties  of any of the  matters  referred  to in  clause  (i)  that has not been
terminated or released by another proper public filing, notice or record.

       2.8  Subsidiaries.  Schedule 2.8 sets forth the only active subsidiary of
Seller,  including state or country of organization and address of its principal
executive offices ("Active Subsidiary").  For purposes of this Agreement and the
other  agreements  contemplated  hereby,  the  Active  Subsidiary  is  the  only
"subsidiary" of Seller.  Schedule 2.8 also discloses four inactive  corporations
and/or limited partnerships owned by Seller (the "Inactive Organizations"),  all
four of  which  are at this  time  inactive,  defunct,  and  have no  value.  No
representation,   warranty,  financial  standard  or  other  provision  of  this
Agreement,  or any agreement  contemplated  hereby,  shall be deemed violated by
virtue  of the fact  that any of the  Inactive  Organizations  do not meet  said
representation, warranty, financial standard or other provision. However, if any
Inactive  Organization  begins to conduct any business (other than activities to
"wind down" such organization) such Inactive Organization shall be considered an
Active  Subsidiary  (and cease to be an Inactive  Organization)  from that point
forward. The Active Subsidiary is a corporation duly organized, validly existing
and in good standing under the laws of the jurisdiction of its organization, has
all requisite  corporate  power and authority to own, to lease or to operate its
properties and to carry on its business as it is now being conducted and is duly
qualified or licensed to do business in each jurisdiction in which the character
of its properties,  owned or leased,  or the nature of its activities makes such
qualification  or license  necessary,  unless the  failure to be so  licensed or
qualified  would not have a material,  adverse  effect on Seller.  Except as set
forth in Schedule  2.8, all  outstanding  shares of capital  stock of the Active
Subsidiary  were duly and validly issued and are fully paid,  nonassessable  and
owned by Seller or a subsidiary of Seller,  free and clear of all  Encumbrances.
There are no  options,  warrants  or other  rights,  agreements  or  commitments
(including  preemptive  rights)  obligating  Seller or the Active  Subsidiary to
issue, to sell or to transfer any shares of capital stock or other securities of
the  Active  Subsidiary.  There  are 151  shares  of  capital  stock  of  Active
Subsidiary issued and outstanding, all of which has been pledged to Purchaser.

       2.9  Liabilities.  Except as set forth in  Schedule  2.9,  Seller  has no
liabilities or obligations,  either accrued, absolute,  contingent, or otherwise
that have a material  adverse  effect on the value or  business  of Seller,  and
Seller has no knowledge of any potential  liability that it reasonably  believes
would  likely  result in a material  adverse  effect on the value or business of
Seller, other than those (a) reflected or reserved against in the balance sheets
reported on Seller's Form 10-Q for the fiscal quarter ended  September 30, 1997,
or (b) incurred in the ordinary course of business since September 30, 1997.

       2.10 Licenses, Permits, Authorizations,  Etc. Seller holds all approvals,
authorizations,  consents,  licenses, orders, franchises,  rights, registrations
and permits of any type required to operate its business as presently conducted.
The  execution  and  delivery  of this  Agreement  and the  consummation  of the
transactions   contemplated   hereby   will  not   result  in  any   revocation,
cancellation,  suspension or modification  of any such approval,  authorization,
consent license, order, franchise, right, registration or permit.

       2.11 Title to Assets; Encumbrances. Except as set forth in Schedule 2.11:

            (a) Seller  has  good and indefeasible title to its assets,  whether
       real, personal or

                                       6




       intangible,  free and  clear of all  Encumbrances  except  (i)  liens for
       current  taxes and  assessments  not yet due or being  contested  in good
       faith by appropriate proceedings, (ii) mechanic's liens arising under the
       operation of law for actions contested in good faith or for which payment
       arrangements have been made, (iii) liens granted or incurred by Seller in
       the ordinary  course of its business or  financing of  equipment,  office
       space,  furniture and  computers in the ordinary  course of its business,
       and (iv) easements, rights of way, encroachments or other restrictions or
       matters  affecting  title which do not prevent the assets from being used
       for the purpose for which they are currently being used;

              (b) There are no  parties  in  possession  of any of the assets of
       Seller  other  than  personal  property  held  by  third  parties  in the
       reasonable and ordinary course of business.  Seller enjoys full, free and
       exclusive use and quiet enjoyment of its assets and its rights pertaining
       thereto.  Seller enjoys  peaceful and  undisturbed  possession  under all
       leases under which it is a lessee,  and all such leases are legal,  valid
       and  binding  obligations  of  Seller,   enforceable  against  Seller  in
       accordance with its terms.

       2.12 Taxes and  Returns.  Seller has filed all  required  tax returns and
reports.  Seller has paid all taxes,  assessments and  governmental  charges and
penalties which it has incurred, except such as are being or may be contested in
good faith by appropriate  proceedings.  Seller is not delinquent in the payment
of any tax,  assessment or governmental  charge.  No deficiencies  for any taxes
have been proposed,  asserted,  or assessed against Seller,  and no requests for
waivers of the time to assess any such tax are pending. For the purposes of this
Agreement,  the term  "tax"  (including,  with  correlative  meaning,  the terms
"taxes" and  "taxable")  shall  include all  federal,  state,  local and foreign
income, profits,  franchise,  gross receipts,  payroll, sales, employment,  use,
property,  withholding,  excise and other taxes,  duties or  assessments  of any
nature whatsoever,  together with all interest,  penalties and additions imposed
with respect to such amounts.

       2.13  Insurance.  Each policy of  property,  fire and  casualty,  product
liability, worker's compensation, professional liability and title insurance and
other forms of insurance (except group,  health and life policies) and each bond
issued  or  posted  by any  person  with  respect  to any  operations  or  other
activities  of Seller  is, to the  knowledge  of Seller,  the  legal,  valid and
binding obligation of the insurer or bond issuer, enforceable in accordance with
its terms,  and is in an amount and provides for coverage as is customary in the
ordinary business practices of Seller's industry.

       2.14 Patents, Trademarks, Etc. Seller has no patents, trademarks, service
marks, works of authorship,  tradenames, brandnames or copyrights. Seller is not
using,  and does not have any plan to  manufacture,  use or sell anything  which
would violate or infringe on any patent or proprietary right (of which Seller is
aware) of any other person, firm or corporation or which would require a license
under  any such  patent  or  proprietary  right.  Seller  has not  received  any
communications  alleging that Seller has violated or, by conducting its business
as  proposed,  would  violate any of the  patents,  trademarks,  service  marks,
tradenames,   copyrights,   works  of  authorship  or  trade  secrets  or  other
proprietary rights in processes of any other person or entity.

       2.15 Material Contracts and Obligations. Attached hereto as Schedule 2.15
is a list of all material agreements of any nature to which Seller is a party or
by which it or any of its properties is bound, including without limitation, the
Master Service  Agreement with the ten top customers (based on dollar volume) of
Seller,  all employment  and consulting  agreements,  loan  agreements,  leases,
purchase  contracts,  employee  benefit,  bonus,  pension,  stock option,  stock
purchase  and  similar  plans  and  arrangements,   and  distributor  and  sales
representative  agreements.  True and complete copies of such written agreements
have been provided to Purchaser. All such agreements and contracts are

                                       7




valid, binding and in full force and effect.  Seller is not in default on any of
the agreements listed on Schedule 2.15.

       2.16  Compliance.  Except  as set  forth on  Schedule  2.16,  Seller  has
complied in all material  respects with all laws, and is not in violation of any
charter or other  corporate  restrictions  or any law,  ordinance,  requirement,
regulation,  judgment,  injunction,  award, decree, or other order applicable to
its  business.  There  is no  term  or  provision  of any  mortgage,  indenture,
contract,  agreement or  instrument to which Seller is a party or by which it is
bound,  any  provision  of  any  state  or  federal  judgment,   decree,  order,
injunction,  writ,  statute,  rule or  regulation  applicable to or binding upon
Seller,  which  materially  adversely  affects  or, in the future is  reasonably
likely to affect  materially and adversely the business,  prospects,  condition,
affairs or  operations  of Seller or any of its  properties  or  assets.  To the
knowledge  of Seller,  no employee of Seller is in  violation of any term of any
employment  contract,   patent  or  other  proprietary   information  disclosure
agreement or any other contract or agreement  relating to the employment of such
employee with Seller.

       2.17 Employees.  Seller has obtained employment agreements, some of which
contain nondisclosure and assignment of invention provisions and non-competition
provisions,  with Seller from some  employees  and  consultants  of Seller whose
employment  responsibility  requires  access  to  confidential  and  proprietary
information of Seller, in a form satisfactory to Purchaser.  Seller has complied
in all material respects with all applicable and material state and federal laws
respecting  employment  and  employment  practices,   terms  and  conditions  of
employment,  wages and hours and other laws related to employment, and there are
no arrears in the payment of wages, or social security taxes.

       2.18 Transactions  with Affiliates and Stockholders.  Except as set forth
on Schedule 2.18, no stockholder,  officer,  director or employee of Seller, nor
any "affiliate" or "associate" of such persons (as such terms are defined in the
rules and  regulations  promulgated  under the  Securities  Act), is presently a
party  to  any  transaction  with  Seller,  including  without  limitation,  any
contract,  agreement  or other  arrangement  providing  for the  employment  of,
furnishing of services by, rental of real or personal property from or otherwise
requiring payments to, any such person or entity.

       2.19 Use of Proceeds.  Seller will not use the Consideration,  except (a)
to fund  acquisitions (all subject to the Purchaser's prior review and approval)
related to (i) the Phoenix Agreement and (ii) the proposed acquisition of, or of
assets from,  Performance Drilling  Specialists,  Inc., a Colorado  corporation,
Petro Wireline Services,  a division of Nygren Investment  Company, a New Mexico
limited  partnership,   and  Tiger  Cased  Hole  Services,  Inc.,  a  California
corporation, (b) to fund the 1998 company capital expenditure program and (c) to
pay attorneys'  fees and  transactional  costs in connection with this Agreement
and all  agreements  contemplated  hereby,  as well as pursuant to that  certain
Agreement  for Purchase  and Sale dated June 5, 1997 and that certain  Agreement
for  Purchase  and  Sale  dated  October  10,  1997.  Seller  shall  not use the
Consideration for any other purpose without the prior consent of Purchaser.

       2.20 Books and Records.  The minute books of Seller  furnished to counsel
to Purchaser for review  contain  complete and accurate  records of all meetings
and other corporate  actions of its  stockholders and its Board of Directors and
committees  thereof.  The stock  ledger  and stock  transfer  records  of Seller
furnished  by Liberty  Transfer  Company to counsel to  Purchaser  for review is
complete  and  reflects  all  issuances,  transfers  of which  Seller  is aware,
repurchases and cancellations of shares of capital stock of Seller.

       2.21 Stockholder  Agreements.  Except as set forth in Schedule 2.21 or as
contemplated by


                                       8




this Agreement, there are no agreements,  written or oral, which are (i) between
Seller and any holder of its capital stock,  or (ii) to the knowledge of Seller,
among any persons  holding five percent (5%) or more of Seller's  capital stock,
relating  to the  acquisition,  disposition  or voting of the  capital  stock of
Seller.

       2.22 ERISA.  Except as disclosed on Schedule 2.22, Seller has no employee
benefit plans subject to the Employment Retirement Income Security Act of 1974.

       2.23 Accounts  Receivable.  All accounts  receivable of Seller (including
those  reflected  on the  Balance  Sheet or  acquired on or prior to the Closing
Date) arose in the ordinary  and usual  course of business of Seller,  represent
valid obligations due to Seller and have been collected or are, to Seller's best
knowledge, collectible in the ordinary and usual course of business of Seller in
the aggregate  recorded  amounts  thereof in accordance with their terms less in
the case of accounts  receivable  reflected  in the  Financial  Statements,  all
allowance  for doubtful  accounts  marked  therein,  and in the case of accounts
receivable thereafter, all allowances for doubtful accounts consistent with past
practices of Seller.

       2.24 Hazardous  Wastes and  Substances.  Neither the operations of Seller
nor the use of its assets violates any applicable  federal,  state or local law,
statute,  ordinance,  rule,  regulation,  memorandum of understanding,  order or
notice  requirement  pertaining  to  the  collection,  transportation,  storage,
treatment, discharge, release or disposal of hazardous or non-hazardous waste or
substances,  including without  limitation (i) the  Comprehensive  Environmental
Response,  Compensation  and  Liability  Act of 1980 (42 U.S.C,  ss.ss.  9601 et
seq.),  as amended  from time to time on or before the Closing  Date  ("CERCLA")
(including,  without limitation, as amended pursuant to the Superfund Amendments
and Reauthorization Act of 1986), and such regulations  promulgated under CERCLA
on or before the Closing Date, (ii) the Resources  Conservation and Recovery Act
of 1976 (42 U.S.C.  ss.ss.  6901 et seq.), as amended from time to time ("RCRA")
on or before the Closing  Date,  and such  regulations  promulgated  under RCRA,
(iii) any applicable federal, state or local laws or regulations relating to the
environment  in  effect  on the  Closing  Date  (collectively,  the  "Applicable
Environmental  Laws").  Except  as  disclosed  on  Schedule  2.24,  none  of the
operations  of Seller has ever been  conducted  nor have any of its assets  been
used in such a manner as to  constitute  a  violation  of any of the  Applicable
Environmental  Laws.  No notice  has been  served  on  Seller  by any  person or
Governmental Entity regarding any existing,  pending or threatened investigation
or inquiry  related to violations  under any  Applicable  Environmental  Law, or
regarding any claims for corrective action, remedial obligations or contribution
for  removal  costs or  damages  under  any  Applicable  Environmental  Law,  or
regarding the  designation  of Seller or any of its  affiliates as a potentially
responsible party for any facility under the Applicable  Environmental Laws, nor
does any fact or  circumstance  exist  which,  if disclosed  publicly,  would be
reasonably  likely to result in the service on Seller of any such notice.  There
has been no action taken, or omitted to be taken by Seller which has caused,  or
would be reasonably likely to cause, a "release" of any "hazardous substance" at
any "facility," without limitation,  within the meaning of such terms as defined
in the Applicable Environmental Laws.

       2.25  Disclosures.  Neither  this  Agreement  nor any Exhibit or Schedule
hereto,  nor any certificate or other  instrument  furnished to Purchaser or its
counsel  by Seller in  connection  with the  transactions  contemplated  hereby,
contains any untrue  statement  of a material  fact or omits to state a material
fact necessary in order to make the statements  contained herein or therein,  in
the light of the circumstances under which they were made, not misleading.

                                   ARTICLE III


                                       9



                                    COVENANTS

       3.1 New  Subsidiaries.  Seller agrees that (i) any Inactive  Organization
which becomes an Active  Subsidiary  after the  execution of this  Agreement and
(ii) any other entity of which Seller obtains  control  (directly or indirectly)
of more  than 50% of the  outstanding  voting  stock or equity  interests  shall
execute a written  agreement  to be bound by that  certain  Subsidiary  Security
Agreement  dated as of June 5, 1997, as amended on October 10, 1997,  and on the
date hereof, before the events set forth in (i) or (ii) above have occurred.

       3.2  Additional  Security  Interests.  Seller agrees that if any Inactive
Organization  begins to conduct  any  business  Seller  shall  pledge all of its
interest in such  Inactive  Organization  to secure the Notes by (i) executing a
security  agreement  substantially in the form of that certain Borrower Security
Agreement  dated as of June 5, 1997, as amended on October 10, 1997,  and on the
date hereof and (ii)  delivering  all  certificates  representing  the shares of
stock being pledged, before such Inactive Organization commences doing business.

       3.3 Conversion of Note;  Registration  of Securities.  The parties hereto
recognize and acknowledge that Purchaser  previously  purchased from Seller that
certain  $2,000,000 9% Convertible  Promissory  Note dated June 5, 1997 and that
certain  $2,900,000  7%  Convertible  Promissory  Note dated  October  10,  1997
(together,  the "Original  Convertible  Notes").  Purchaser hereby covenants and
agrees to promptly convert the Original Convertible Notes pursuant to its terms,
but only if and when (i)  Seller has filed,  no later  than  April 15,  1998,  a
registration  statement  covering the shares of Common Stock  issuable  upon (a)
conversion of the Original Convertible Notes, (b) exercise of the Warrants dated
as of June 5, 1997,  to purchase  546,000 and  120,000  shares of Common  stock,
respectively,  and the  Warrants  dated  October 10, 1997,  to purchase  725,000
Shares of Common  Stock,  (c)  conversion  of the Note and (d)  exercise  of the
Warrants and (ii) such registration statement has been declared effective by the
SEC.

                                   ARTICLE IV

                                   THE CLOSING

       4.1 Time and Place.  Subject to the provisions of Section 1.2 herein, the
closing of the purchase and sale of the Note and the  Warrants  (the  "Closing")
will take place on a date agreed to by the parties (the "Closing Date"),  at the
offices of Gardere Wynne Sewell & Riggs,  L.L.P.,  unless another time and place
are agreed to by the parties.

       4.2 Conditions to the  Obligation of Seller.  The obligation of Seller to
effect  the  Closing  is  subject  to  Purchaser  delivering,  or  causing to be
delivered, to Seller at the Closing the Consideration.

       4.3  Conditions  to  the  Obligation  of  Purchaser.  The  obligation  of
Purchaser  to effect the Closing is subject to  satisfactory  completion  of the
Acquisition  and payment by Seller of the  Origination  Fee. The  obligation  of
Purchaser is further subject to Seller  delivering,  or causing to be delivered,
to Purchaser at the Closing the following documents:

           4.3.1 copies, certified by the Secretary of State of Delaware as of a
recent date,  of the charter of Black Warrior and all  amendments  thereto and a
certificate  of an Officer of Black Warrior  certifying  that there have been no
amendments  to such  charter  since  such date,  and  copies,  certified  by the
Secretary of Active  Subsidiary as of the Closing Date, of the charter of Active
Subsidiary and all amendments thereto;

                                       10






           4.3.2 copies, certified by the Secretary of each of Black Warrior and
Active Subsidiary as of the Closing Date, of the bylaws of each of Black Warrior
and Active Subsidiary, respectively, and all amendments thereto;

           4.3.3 copies,  certified by a certificate of the Secretary of each of
Black Warrior and Active  Subsidiary as of the Closing Date, of resolutions duly
adopted  by the  board  of  directors  of  each  of  Black  Warrior  and  Active
Subsidiary,  respectively,  authorizing  the  execution  and delivery by each of
Black Warrior and Active Subsidiary,  respectively, of the Transaction Documents
and all other agreements attached hereto as Exhibits or contemplated herein, the
completion of the sale of the Note and Warrants and the taking of all such other
corporate action as shall have been required as a condition to, or in connection
with, the sale of the Note and Warrants;

           4.3.4 the Agreement;

           4.3.5 the Note;

           4.3.6 the Warrants;

           4.3.7 the Amendment No. 2 to Registration Rights Agreement;

           4.3.8 the Second Amendment of Security Agreement;

           4.3.9 the Second Amendment of Subsidiary Security Agreement;

           4.3.10 the Second Amendment of Subsidiary Guaranty;

           4.3.11 an opinion of William S. Clarke,  P.A.,  counsel to Seller, in
form and substance  acceptable to Purchaser and addressing the matters set forth
in Sections 2.1, 2.2, 2.3, 2.7 and 2.8;

           4.3.12 a  certificate  of an  Officer  of each of Black  Warrior  and
Active Subsidiary to the effect that the  representations and warranties of each
of Black Warrior and Active Subsidiary,  respectively, herein contained shall be
true as of and at the  Closing  Date with the same effect as though made at such
date,  except as affected by  transactions  permitted  or  contemplated  by this
Agreement;  and  further to the  effect  that each of Black  Warrior  and Active
Subsidiary shall have performed and complied with all covenants required by this
Agreement to be performed or complied with by each before the Closing Date; and

           4.3.13 a letter in favor of Purchaser's  lender,  in the form of that
attached hereto as Exhibit F.

                                    ARTICLE V
                               GENERAL PROVISIONS

       5.1  Survival  of   Representations,   Warranties  and  Agreements.   The
representations,  warranties  and agreements  contained in this Agreement  shall
survive the Closing.

       5.2 Notices.  All notices or other  communications  which are required or
may be given  under this  Agreement  shall be in writing  and shall be deemed to
have been duly given when delivered

                                       11





in person,  transmitted  by  telecopier  (with  receipt  confirmed) or mailed by
registered  or  certified  first class mail,  postage  prepaid,  return  receipt
requested to the parties  hereto at the address set forth below (as the same may
be  changed  from time to time by  notice  similarly  given)  or the last  known
business  or  residence  address of such other  person as may be  designated  by
either party hereto in writing.

         (a)      If to Seller:             Black Warrior Wireline Corp.
                                            3748 Highway #45 North
                                            Columbus, Mississippi  39701
                                            Attn:  William L. Jenkins

         (b)      If to Purchaser:  St. James Capital Partners, L.P.
                                            c/o St. James Capital Corp.
                                            1980 Post Oak Boulevard, Suite 2030
                                            Houston, Texas 77056
                                            Attn: John L. Thompson

       5.3  Miscellaneous.  This Agreement (i) constitutes the entire  agreement
and supersedes all other prior agreements and  understandings,  both written and
oral,  among the parties,  or any of them,  with  respect to the subject  matter
hereof,  provided,  however,  this  Section 5.3 is not  intended to supersede or
replace that certain  Agreement for Purchase and Sale dated June 5, 1997 or that
certain  Agreement  for Purchase  and Sale dated  October 10, 1997 (ii) shall be
binding upon and inure to the benefit of the parties hereto and their respective
successors  and assigns and is not  intended to confer upon any other person any
rights or remedies hereunder, (iii) shall be governed in all respects, including
validity,  interpretation  and effect,  by the laws of the State of Delaware and
(iv) may be executed in two or more counterparts which together shall constitute
a single agreement.

       5.4 Publicity.  Seller and Purchaser  promptly shall advise and cooperate
with the other prior to issuing,  or permitting any of its directors,  officers,
employees or agents to issue,  any press release with respect to this  Agreement
or the transactions contemplated hereby.  Notwithstanding the foregoing, without
the  prior  consent  of  Purchaser,  neither  Seller  nor any of its  directors,
officers,  employees or agents shall issue any press release which  includes the
name of Purchaser or any of Purchaser's affiliates.

       5.5 Assignment.

           (a)  Neither  this  Agreement  nor any of the  rights,  interests  or
obligations  hereunder  shall be assigned by Seller (whether by operation of law
or otherwise) without the prior written consent of the Purchaser.

           (b) Purchaser may assign its rights and obligations hereunder,  under
the Note, the Warrants or any other  Transaction  Document,  to any other entity
that is an affiliate of either  Purchaser or the general  partner of  Purchaser,
subject to the terms hereof and upon prior written  notice to Seller.  Each such
assignee  (an   "Assignee")   shall   execute  an  Assignment   and   Acceptance
substantially  in the form of Exhibit E. Upon the  execution of such  Assignment
and  Acceptance  by such  Assignee,  (i) the  Assignee  shall  be a  "Purchaser"
hereunder and, to the extent  provided in the Assignment and  Acceptance,  shall
have the rights and obligations of a Purchaser hereunder, and (ii) the assigning
Purchaser (an  "Assignor")  shall,  to the extent provided in the Assignment and
Acceptance, be released from its obligations hereunder.

           (c) An  Assignor  hereunder  shall,  if  requested  by the  Assignee,
deliver the Note

                                       12




and Warrants in favor of such Assignor to the Seller, and the Seller shall issue
replacement  Notes and Warrants in favor of the Assignor and the Assignee in the
amounts and for such shares as are indicated in the Assignment  and  Acceptance.
The  replacement  Warrants shall be issued for an exercise price per share equal
to the exercise  price set forth in the Warrants to be delivered to Seller under
this Section 5.5(c).

       5.6  Schedules.  All  statements  contained  in  any  exhibit,  schedule,
appendix,  certificate  or other  instrument  delivered  by or on  behalf of the
parties hereto, or in connection with the transactions  contemplated hereby, are
an  integral  part of this  Agreement  and shall be deemed  representations  and
warranties hereunder.

       5.7  Counterparts.  This  Agreement  may  be  executed  in  one  or  more
counterparts,  each of which  constitutes  an  original  execution  and,  in the
aggregate, constitute a single document.

       5.8 Expense Reimbursement.  Seller will reimburse to Purchaser, within 10
days after Purchaser's  presentation of an invoice therefor,  all of Purchaser's
direct  costs  relating  to the  negotiation,  documentation  and closing of the
transactions  contemplated by this Agreement,  including without  limitation the
direct fees and expenses of counsel for Purchaser.

       5.9 Restrictions on Transfer.

           (a)  Purchaser  shall not  transfer the Note except by the grant of a
security  interest  to its lender or  lenders,  or as  provided  by Section  5.5
hereof.  As  between   Purchaser  and  its  lender  or  lenders,   the  Note  is
transferrable  in the same  manner and with the same  effect as in the case of a
negotiable  instrument payable to a specified person. Any lender to which Holder
grants a  security  interest  in the Note  shall be  entitled  to  exercise  all
remedies  to which it is entitled  by  contract  or by law,  including  (without
limitation)  transferring  the  Note  into  its own name or into the name of any
purchaser at any sale undertaken in connection  with  enforcement by such lender
of its remedies.

           (b)  Purchaser  shall not  transfer  the Warrants or any new warrants
described in Section 1.4 of this Agreement except to the partners of Purchaser.

       5.10 Expenses of Dispute Resolution. If any action at law or in equity is
necessary  to enforce or  interpret  the terms of this  Agreement  or any of the
other  Transaction  Documents,   the  prevailing  party  shall  be  entitled  to
reasonable  attorneys' fees,  costs, and necessary  disbursements in addition to
any other relief to which it may be entitled.

                                       13



                             SELLER'S SIGNATURE PAGE

       IN WITNESS WHEREOF, Seller has signed this Agreement as of the date first
written above.


                                          BLACK WARRIOR WIRELINE CORP.


                                          By:
                                             -----------------------------------
                                                William L. Jenkins, President


                                       14





                           PURCHASER'S SIGNATURE PAGE

         IN WITNESS WHEREOF,  Purchaser has signed this Agreement as of the date
first written above.


                                          ST. JAMES CAPITAL PARTNERS, L.P.

                                          By:      St. James Capital Corp., its
                                                   General Partner


                                          By:
                                             -----------------------------------
                                                   John Thompson, President


                                       15