Document:

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                                                                    EXHIBIT 10.1

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                            STOCK PURCHASE AGREEMENT

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                                  By and Among

                                 DAVID CANNINGS
                                 LINDA CANNINGS
                     SOUTHWOODS RANCHING & DEVELOPMENTS INC.
                           (COLLECTIVELY, THE SELLERS)

                                       and

                        T-3 ENERGY SERVICES CANADA, INC.
                                 (THE PURCHASER)

                          Dated as of October 18, 2004

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                                TABLE OF CONTENTS

<Table>
<Caption>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
ARTICLE I DEFINITIONS......................................................    1
   Section 1.1    Definitions..............................................    1
   Section 1.2    Certain Interpretive Matters.............................    8

ARTICLE II SALE AND PURCHASE...............................................    9
   Section 2.1    Purchase and Sale of the Shares..........................    9

ARTICLE III PURCHASE PRICE AND CLOSING PAYMENTS............................    9
   Section 3.1    Purchase Price...........................................    9
   Section 3.2    Post-Closing Purchase Price Adjustment...................   10
   Section 3.3    Adjustments to Purchase Price............................   11

ARTICLE IV CLOSING AND CLOSING DELIVERIES..................................   11
   Section 4.1    The Closing..............................................   11
   Section 4.2    Deliveries of Sellers....................................   11
   Section 4.3    Deliveries by Purchaser..................................   12

ARTICLE V REPRESENTATIONS AND WARRANTIES OF THE SELLERS....................   12
   Section 5.1    Corporate Existence and Power............................   12
   Section 5.2    Authorization; Enforceability............................   13
   Section 5.3    Governmental Authorization...............................   13
   Section 5.4    Non-Contravention; Consents..............................   13
   Section 5.5    Capitalization...........................................   13
   Section 5.6    Subsidiaries.............................................   14
   Section 5.7    Financial Statements.....................................   14
   Section 5.8    No Undisclosed Liabilities...............................   14
   Section 5.9    Tax Matters..............................................   14
   Section 5.10   Absence of Certain Changes...............................   16
   Section 5.11   Contracts................................................   17
   Section 5.12   Insurance Coverage.......................................   18
   Section 5.13   Litigation...............................................   18
   Section 5.14   Compliance with Laws; Permits............................   19
   Section 5.15   Assets; Properties; Sufficiency of Assets................   19
   Section 5.16   Intellectual Property....................................   20
   Section 5.17   Environmental Matters....................................   22
   Section 5.18   Plans and Material Documents.............................   23
   Section 5.19   Affiliate Transactions...................................   23
   Section 5.20   Customer and Supplier Relations..........................   24
   Section 5.21   Employment Matters.......................................   24
   Section 5.22   Accounts Receivable......................................   25
   Section 5.23   Inventory................................................   25
   Section 5.24   Product and Service Warranties; Defects; Liability
                  Defects; Liability.......................................   25
   Section 5.25   Finders' Fees............................................   25
   Section 5.26   Bank Accounts, etc.......................................   25
   Section 5.27   Disclosure...............................................   26
   Section 5.28   Reliance.................................................   26

ARTICLE VI REPRESENTATIONS AND WARRANTIES OF PURCHASER.....................   26
   Section 6.1    Corporate Existence and Power............................   26
</Table>

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<Table>
<S>                                                                         <C>
   Section 6.2    Corporate Authorization; Enforceability..................   26
   Section 6.3    Non-Contravention........................................   26
   Section 6.4    Finders' Fees............................................   27

ARTICLE VII CERTAIN COVENANTS..............................................   27
   Section 7.1    Further Assurances.......................................   27
   Section 7.2    Personal Information.....................................   27

ARTICLE VIII TAX MATTERS...................................................   28
   Section 8.1    Tax Indemnification......................................   28
   Section 8.2    Returns..................................................   28
   Section 8.3    Refunds..................................................   28
   Section 8.4    Contests.................................................   29
   Section 8.5    Miscellaneous............................................   29

ARTICLE IX SURVIVAL; INDEMNIFICATION.......................................   30
   Section 9.1    Survival.................................................   30
   Section 9.2    Indemnification..........................................   30
   Section 9.3    Procedures...............................................   31
   Section 9.4    Other Agreements Regarding Indemnification...............   32
   Section 9.5    Reassignment of Accounts Receivable......................   32
   Section 9.6    Taxes....................................................   32
   Section 9.7    Interest on Claims.......................................   33

ARTICLE X MISCELLANEOUS....................................................   33
   Section 10.1   Notices..................................................   33
   Section 10.2   Amendments and Waivers...................................   34
   Section 10.3   Expenses.................................................   34
   Section 10.4   Successors and Assigns...................................   34
   Section 10.5   No Third-Party Beneficiaries.............................   34
   Section 10.6   Governing Law............................................   34
   Section 10.7   Public Announcements.....................................   35
   Section 10.8   Counterparts and Execution...............................   35
   Section 10.9   Table of Contents; Headings..............................   35
   Section 10.10  Entire Agreement.........................................   35
   Section 10.11  Severability; Injunctive Relief..........................   35
   Section 10.12  Time.....................................................   35
   Section 10.13  Remedies.................................................   36
</Table>

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                            STOCK PURCHASE AGREEMENT

         STOCK PURCHASE AGREEMENT, dated as of October __, 2004, by and among
David Cannings, a resident of Edmonton, Alberta ("Mr. Cannings"), Linda
Cannings, a resident of Edmonton, Alberta ("Ms. Cannings"), and Southwoods
Ranching & Developments Inc., an Alberta corporation ("Southwoods")
(collectively, the "Sellers"), and T-3 Energy Services Canada, Inc., an Alberta
corporation (the "Purchaser").

                                    RECITALS

         WHEREAS, the Sellers together are the legal and beneficial owners of
all of the authorized, issued and outstanding shares of every class of Capital
Stock (as defined herein) of Oilco Equipment and Oilco Enterprises (as defined
herein) (the "Shares"); and

         WHEREAS, each Seller desires to sell to the Purchaser, and the
Purchaser desires to purchase from each Seller, all of the Shares, upon the
terms and subject to the conditions set forth herein.

         NOW, THEREFORE, in consideration of the premises and the mutual
agreements and covenants hereinafter set forth, the Purchaser and the Sellers
hereby covenant and agree as follows:

                                    ARTICLE I
                                   DEFINITIONS

                  Section 1.1 Definitions. In addition to the terms defined
elsewhere herein, the terms below are defined as follows:

         "Accountants" has the meaning set forth in Section 3.2(b).

         "Accounts Receivable" means all accounts and notes receivable of the
Companies.

         "Affiliate" means, with respect to any Person, any other Person
directly or indirectly controlling, controlled by or under common control with
the first Person and, if such first Person is an individual, any member of the
immediate family (including parents, spouse and children) of such individual and
any trust whose principal beneficiary is such individual or one or more members
of such individual's immediate family, and any Person who is controlled by any
such member or trust. For the purposes of this Agreement, "control," when used
with respect to any Person, means the possession, directly or indirectly, of the
power to (a) vote 10% or more of the securities having ordinary voting power for
the election of directors (or comparable positions) of such Person or (b) direct
or cause the direction of the management and policies of such Person, whether
through the ownership of voting securities, by contract or otherwise, and the
terms "controlling" and "controlled" have meanings correlative to the foregoing.

         "Agreement" means this Stock Purchase Agreement, as the same may be
amended from time to time in accordance with the terms hereof.

         "Ancillary Agreements" means the Employment Agreements, the
Non-Competition Agreements, the Lease Agreements, the Escrow Agreement and all
other instruments, certificates

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and other agreements entered into by one or more of the Sellers or their
Affiliates, the Purchaser and the Companies in connection with the consummation
of the transactions contemplated by this Agreement.

         "Applicable Privacy Laws" means any and all Laws relating to the
collection, use and disclosure of Personal Information in an applicable
jurisdiction, including the Personal Information, Protection and Electronic
Documents Act (Canada) and/or any comparable provincial law including the
Personal Information Protection Act (Alberta).

         "Balance Sheet Date" means July 31, 2004.

         "Benefit Plan" means any employee benefit plan, program, agreement,
arrangement, policy, contract, commitment or scheme, written or oral, statutory
(excepting therefrom any provisions provided by implication of general
employment Law) or contractual, that provides for compensation or benefits,
including, without limitation, any deferred compensation, registered or
non-registered retirement plan, pension plan, supplemental pension plan,
retirement profit sharing, individual or group savings (both registered and
non-registered) plans, executive compensation, severance, separation,
termination, job security, bonus or incentive plan, any cafeteria plan or any
holiday or vacation plan or practice.

         "Business" means the business of the Companies as now or previously
conducted.

         "Business Day" means a day that is not a Saturday, Sunday or any other
day on which commercial banking institutions located in Houston, Texas or
Edmonton, Alberta are authorized or required to close.

         "CRA" means the Canada Revenue Agency or any successor thereto.

         "Capitalized Lease Obligations" means the obligations of a Person that
are required to be classified and accounted for as capital lease obligations
under GAAP, together with all obligations to make termination payments under
such capitalized lease obligations.

         "Capital Stock" means with respect to any corporation any and all
shares, interests, participation or other equivalents (however designated and
whether or not voting) of corporate stock, including the common shares of such
corporation.

         "Closing" has the meaning set forth in Section 4.1.

         "Closing Cash Consideration" has the meaning set forth in Section 3.1.

         "Closing Date" has the meaning set forth in Section 4.1.

         "Closing Date Balance Sheet" has the meaning set forth in Section
3.2(a).

         "Closing Statement" has the meaning set forth in Section 3.2(a).

         "Closing Net Working Capital Balance" has the meaning set forth in
Section 3.2(a).

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         "Companies" means, collectively, Oilco Equipment and Oilco Enterprises
and their respective Subsidiaries.

         "Constituent of Concern" means any substance defined as a hazardous
substance, hazardous waste, hazardous material, pollutant or contaminant by any
applicable Environmental Law, any petroleum hydrocarbon and any degradation
product of a petroleum hydrocarbon, asbestos, PCB or similar substance, the
generation, recycling, use, treatment, storage, transportation, Release,
disposal or exposure of or to which is subject to regulation under any
applicable Environmental Law.

         "Contracts" has the meaning set forth in Section 5.11.

         "Damages" has the meaning set forth in Section 9.2(a).

         "Direct Claim" has the meaning set forth in Section 9.3(c).

         "Employment Agreements" means the employment agreements entered into by
Mr. Cannings and Paul Wilson substantially in the form of Exhibit A hereto.

         "Environmental Claims" means administrative, regulatory or judicial
actions, suits, demands, demand letters, claims, liens, citations, summonses,
orders, notices of non-compliance or violation, requests for information,
investigations or proceedings relating in any way to the Release of Constituents
of Concern by the Companies in contravention of any applicable Environmental
Law, including (a) Environmental Claims by Governmental Authorities for
enforcement, cleanup, removal, response, investigation, assessment, remedial or
other actions or damages pursuant to any applicable Environmental Law and (b)
Environmental Claims by any third party seeking damages, contribution,
indemnification, cost recovery, compensation or injunctive relief resulting from
Release of Constituents of Concern by the Companies in contravention of any
applicable Environmental Law or arising from an alleged injury or threat of
injury to human health and safety or the environment from such a Release.

         "Environmental Condition" means a condition with respect to the
environment which has resulted or could reasonably be expected to result in a
loss, liability, cost, Environmental Claim or expense to any Company.

         "Environmental Law" means any Law, administrative interpretation,
administrative order, guideline, policy, directive, consent decree or judgment,
or common law relating to the environment, human health and safety and any
provincial, state and local counterparts or equivalents.

         "Environmental Permits" means all Permits, licenses, authorizations,
certificates and approvals of Governmental Authorities relating to or required
by Environmental Laws.

         "Escrow Agent" has the meaning set forth in Section 3.5(b).

         "Escrow Agreement" has the meaning set forth in Section 3.5(b).

         "Escrow Adjustment Amount" has the meaning set forth in Section 3.1(c).

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         "Escrow Claim Amount" has the meaning set forth in Section 3.1(c).

         "GAAP" means those generally accepted accounting principles which are
recognized by the Canadian Institute of Chartered Accountants from time to time,
consistently applied.

         "Governmental Authority" means any domestic or foreign governmental or
regulatory agency, authority, bureau, commission, department, official or
similar body or instrumentality thereof, or any governmental court, arbitral
tribunal or other body administering alternative dispute resolution.

         "ITA" means the Income Tax Act (Canada), as amended from time to time.

         "Indebtedness" means with respect to any Person, at any date, without
duplication, (a) all obligations of such Person for borrowed money, including
all principal, interest, premiums, fees, expenses, overdrafts and penalties with
respect thereto, (b) all obligations of such Person evidenced by bonds,
debentures, notes or other similar instruments, (c) all obligations of such
Person to pay the deferred purchase price of the property or services, except
trade payables incurred in the Ordinary Course of Business, (d) all obligations
of such Person to reimburse any bank or other Person in respect of amounts paid
under a letter of credit or similar instrument, (e) all Capitalized Lease
Obligations, (f) all other obligations of a Person which would be required to be
shown as indebtedness on a balance sheet of such Person prepared in accordance
with GAAP, and (g) all indebtedness of any other Person of the type referred to
in clauses (a) to (f) above directly or indirectly guaranteed by such Person or
secured by any assets of such Person, whether or not such Indebtedness has been
assumed by such Person.

         "Indemnified Party" has the meaning set forth in Section 9.3(a).

         "Indemnifying Party" has the meaning set forth in Section 9.3(a).

         "Intellectual Property" means any intellectual property owned by the
Companies or used in the conduct of the Business, including but not limited to:
(i) all inventions (whether patentable or unpatentable and whether or not
reduced to practice), all improvements thereto, and all patents, patent
applications, patent disclosures and industrial designs or industrial design
applications, together with all reissuances, continuations,
continuations-in-part, revisions, extensions and re-examinations thereof; (ii)
all trade-marks, trade dress, logos, trade-names, business names, corporate
names and domain names together with all translations, adaptations, derivations
and combinations thereof and including all goodwill associated therewith and all
applications, registrations and renewals in connection therewith; (iii) all
copyrightable works, all copyrights and all applications, registrations and
renewals in connection therewith; (iv) all proprietary or confidential
information and trade secrets; (v) all computer software (including data and
related documentation); (vi) all copies, tangible embodiments, and derivatives
of the foregoing (in whatever form or medium); and (vii) any intellectual
property that may exist, arise or be embodied in those items set out in Schedule
5.16(a), together with Intellectual Property Rights related thereto.

         "Intellectual Property Rights" means any right or protection existing
from time to time in a specific jurisdiction, whether registered or not, under
any patent law or other invention or discovery law, copyright law, performance
or moral rights law, trade-secret law, confidential information law, plant
breeders law, integrated circuit topography law, semi-conductor chip

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protection law, trade-mark law, unfair competition law or other similar laws and
includes legislation by competent Governmental Authorities and judicial
decisions under common law or equity.

         "Inventory" means raw materials, work in progress and finished goods
inventory.

         "knowledge" refers to the knowledge that a Person would have after a
diligent and careful inquiry into the relevant subject matter.

         "Law" means any federal, foreign, provincial, state or local statute,
law, including common law, rule, regulation, ordinance, code, permit or license.

         "Lease Agreements" means the lease agreements between Southwoods and
the Purchaser in the form of Exhibits B and C hereto.

         "Lien" means, with respect to any property or asset, any mortgage,
lien, pledge, charge, security interest, encumbrance or other adverse claim of
any kind in respect of such property or asset. For the purposes of this
Agreement, a Person will be deemed to own, subject to a Lien, any property or
asset which it has acquired or holds subject to the interest of a vendor or
lessor under any conditional sale agreement, capital lease or other title
retention agreement relating to such property or asset.

         "Material Adverse Effect" means, when taken together with other effects
on the Business, condition, assets, liabilities or operations of the Companies,
an effect on the Business, condition, assets, liabilities or operations of the
Companies that results or could reasonably be expected to result in a diminution
in value of the Shares equal to or exceeding $500,000 in the aggregate.

         "Mr. Cannings" has the meaning set forth in the introductory paragraph
of this Agreement.

         "Ms. Cannings" has the meaning set forth in the introductory paragraph
of this Agreement.

         "Net Working Capital" means (i) the combined current assets of the
Companies, minus (ii) the combined current liabilities of the Companies, all of
which shall be determined in accordance with GAAP; provided, however, combined
current liabilities shall not include (a) income Taxes payable for the fiscal
year of each of the Companies ended July 31, 2004 and the period subsequent to
such date up to and including the Closing Date, (b) reasonable moving expenses
not exceeding $100,000 with respect to the occupancy of the property subject to
the Lease Agreements, and (c) any extraordinary expense of the Companies in
excess of $10,000 incurred with the prior written consent of the Purchaser. For
the purposes of determining "Net Working Capital", shareholder loans owing by or
to one or more of the Companies (whether such loans are outstanding on or prior
to Closing or created at Closing) shall not be included in current liabilities
or current assets, as applicable.

         "Non-Competition Agreements" means the non-competition agreements
between Purchaser and the Sellers in substantially the form of Exhibit D hereto.

         "Oilco America" means Oilco America Inc., a Texas corporation.

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         "Oilco Equipment" means Oilco Equipment Ltd., an Alberta corporation.

         "Oilco Enterprises" means Oilco Enterprises Ltd., an Alberta
corporation.

         "Order" means any judgment, injunction, judicial or administrative
order or decree.

         "Ordinary Course of Business" means, with respect to any Person, the
ordinary course of business of such Person, consistent with such Person's past
practice and custom, including, without limitation, with respect to any
category, quantity or dollar amount, term and frequency of payment, delivery,
accrual, expense or any other accounting entry.

         "Permit" has the meaning set forth in Section 5.14(b).

         "Permitted Lien" means (a) mechanics' Liens, workmen's Liens, carriers'
Liens, repairmen's Liens or landlord's Liens, (b) statutory Liens for Taxes,
assessments and other similar governmental charges that are not overdue, or (c)
Liens incurred or deposits made to secure the performance of bids, contracts,
statutory obligations, surety and appeal bonds incurred in the Ordinary Course
of Business by any Company.

         "Person" means an individual, corporation, partnership, limited
liability company, joint venture, association, trust or other entity or
organization or Governmental Authority.

         "Personal Information" means information about an identifiable
individual but does not include business contact information, provided that the
collection, use or disclosure, as the case may be, of such business contact
information is for the purposes of contacting an individual in that individual's
capacity as an employee or an official of an organization and for no other
purpose.

         "Property" means any real property and improvements at any time owned,
leased, used, operated or occupied (whether for storage, disposal or otherwise)
by any Company.

         "Purchase Price" has the meaning set forth in Section 3.1.

         "Purchaser" has the meaning set forth in the introductory paragraph of
this Agreement.

         "Real Property" has the meaning set forth in Section 5.15(b).

         "Reference Financial Statements" means:

                  (i) With respect to Oilco Equipment, the fiscal year end
balance sheets of Oilco Equipment as of July 31, 2003 and 2004, together with
the related statements of income for the periods then ended; and

                  (ii) With respect to Oilco Enterprises, the fiscal year end
balance sheets of Oilco Enterprises as of July 31, 2003 and 2004, together with
the related statements of income for the periods then ended.

The Reference Financial Statements are attached hereto as Schedule 5.7.

         "Reference Working Capital Balance" means $2,500,000.

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         "Release" means any release, spill, emission, discharge, leaking,
pumping, injection, deposit, disposal, discharge, dispersal, leaching or
migration into the environment (including ambient air, surface water,
groundwater and surface or subsurface strata) or into or out of any Property,
including the movement of Constituents of Concern through or in the air, soil,
surface water, groundwater or property.

         "Representatives" means, with respect to any party or the Companies,
their Affiliates and its and their respective directors, officers, employees,
consultants, agents and other representatives and advisers.

         "Returns" means returns, designations, declarations, reports, claims
for refund, information returns or other documents (including any related or
supporting schedules, statements or information) and including any amendment
thereof filed or required to be filed in connection with the determination,
assessment or collection of Taxes of any party or the administration of any Laws
relating to any Taxes.

         "Selected Representations and Warranties" means the representations and
warranties contained in Sections 5.5 (Capitalization), 5.15(a) (Assets;
Properties; Sufficiency of Assets) and 5.17 (Environmental Matters).

         "Sellers" has the meaning set forth in the introductory paragraph of
this Agreement.

         "Southwoods" has the meaning set forth in the introductory paragraph of
this Agreement.

         "Shares" has the meaning set forth in the recitals to this Agreement.

         "Subsidiary" means, with respect to any Person, (a) any corporation 50%
or more of whose stock of any class or classes having by the terms thereof
ordinary voting power to elect a majority of the directors of such corporation
(irrespective of whether or not at the time stock of any class or classes of
such corporation have or might have voting power by reason of the happening of
any contingency) is at the time owned by such Person, directly or indirectly
through Subsidiaries, and (b) any partnership, limited liability company,
association, joint venture, trust or other entity in which such Person, directly
or indirectly through Subsidiaries, is either a general partner, has a 50% or
greater equity interest at the time or otherwise owns a controlling interest.

         "Tax" means (a) any federal, provincial, state or foreign net income,
alternative or add-on minimum tax, net worth, gross income, capital, capital
gains, gross receipts, sales, use, ad valorem, value added, goods and services,
transfer, franchise, profits, license, withholding on amounts paid to or by any
Person, payroll, employment, excise, severance, stamp, occupation, premium,
property, environmental or windfall profit tax, custom, duty or other tax,
charges, fees, levies, imposts, governmental fee or other like assessment or
charge of any kind whatsoever, together with any interest, penalty, addition to
tax or additional amount imposed by any Taxing Authority, (b) any liability of
any Company for the payment of any amounts of any of the foregoing types as a
result of being a member of an affiliated, consolidated, combined or unitary
group, or being a party to any agreement or arrangement whereby liability of any
Company for payment of such amounts was determined or taken into account with
reference to the liability of any other Person, and (c) any liability of any
Company for the payment of any amounts as a result of being a party to any
Tax-Sharing Agreement or with respect to the payment of any

                                      -7-
<PAGE>

amounts of any of the foregoing types as a result of any express or implied
obligation to indemnify any other Person.

         "Tax-Sharing Agreements" means all existing Tax-sharing agreements or
arrangements (whether or not written) that are binding on any Company.

         "Taxing Authority" means the CRA or any other Governmental Authority
having jurisdiction over the assessment, determination, collection or other
imposition of any Tax.

         "Third-Party Claim" means any claim, demand, action, suit or proceeding
made or brought by any Person who or which is not a party to this Agreement or
who or which is not an Affiliate of any party to this Agreement.

         "Transferred Information" means the Personal Information to be
disclosed or conveyed to the Purchaser or any of its Representatives by or on
behalf of the Sellers or the Companies as a result of or in conjunction with the
transactions contemplated herein, and includes all such Personal Information
disclosed to the Purchaser during the period leading up to and including the
completion of the transactions contemplated herein.

                  Section 1.2 Certain Interpretive Matters. (a) When a reference
is made in this Agreement to an Article, Section, Exhibit or Schedule, such
reference will be to an Article or Section of, or an Exhibit or Schedule to,
this Agreement unless otherwise indicated. Whenever the words, "include,"
"includes" or "including" are used in this Agreement, they will be deemed to be
followed by the words "without limitation." The words "hereof," "herein" and
"hereunder" and words of similar import when used in this Agreement refer to
this Agreement as a whole and not to any particular provision of this Agreement.
All terms defined in this Agreement have the defined meanings when used in any
certificate or other document made or delivered pursuant hereto unless otherwise
defined therein. The definitions contained in this Agreement are applicable to
the singular as well as the plural forms of such terms and to the masculine as
well as to the feminine and neuter genders of such terms. All references to "$"
or dollar amounts will be to lawful currency of Canada. Any agreement,
instrument or statute defined or referred to herein or in any agreement or
instrument that is referred to herein means such agreement, instrument or
statute as from time to time amended, modified or supplemented, including (in
the case of agreements or instruments) by waiver or consent and (in the case of
statutes) by succession of comparable successor statutes and references to all
attachments thereto and instruments incorporated therein. References to a Person
are also to its permitted successors and assigns. Each of the Schedules will
apply only to its corresponding Section or subsection of this Agreement. Each
accounting term not otherwise defined in this Agreement has the meaning assigned
to it in accordance with GAAP. To the extent the term "day" or "days" is used,
it will mean calendar days unless referred to as a "Business Day."

                  (b) No provision of this Agreement will be interpreted in
favor of, or against, any of the parties hereto by reason of the extent to which
any such party or its counsel participated in the drafting thereof or by reason
of the extent to which any such provision is inconsistent with any prior draft
hereof or thereof.

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<PAGE>

                                   ARTICLE II
                                SALE AND PURCHASE

                  Section 2.1 Purchase and Sale of the Shares. (a) Upon the
terms and subject to the conditions of this Agreement, at the Closing, (i) Mr.
Cannings shall sell all Shares of Oilco Equipment, (ii) Ms. Cannings shall sell
all Shares of Oilco Enterprises, and (iii) Southwoods shall sell all Shares of
Oilco Equipment to the Purchaser, and the Purchaser shall purchase from such
Sellers, such Shares, free and clear of all Liens.

                  (b) Purchaser shall not be required to purchase any Shares of
any Company, unless Sellers sell and assign to Purchaser all of the Shares of
each Company.

                                   ARTICLE III
                       PURCHASE PRICE AND CLOSING PAYMENTS

                  Section 3.1 Purchase Price. (a) In consideration for the
conveyance by Sellers to Purchaser of the Shares, Purchaser will deliver to
Sellers at the Closing (subject to paragraph (c) below) the aggregate purchase
price (as adjusted pursuant to this Article III, the "Purchase Price") in amount
equal to $12,500,000, reduced by (i) the amount by which Indebtedness of the
Companies to the Sellers at Closing exceeds Indebtedness of Sellers to the
Companies at Closing, (ii) to the extent the Indebtedness listed on Schedule 3.1
hereto exceeds $500,000 and (iii) the amount by which the income Taxes of the
Companies for the fiscal period ending July 31, 2004, as shown on the Reference
Financial Statements, exceeds $300,000 in the aggregate (such amount, the
"Closing Cash Consideration"), payable in cash by wire transfer in immediately
available funds to accounts designated in writing by Sellers at least two
Business Days prior to the Closing Date.

                  (b) At the Closing, Purchaser shall pay on the Companies'
behalf the net amount due and owing to each such Seller, after offset of the
Indebtedness owing by each Seller to the Companies, which amount, for clarity,
shall equal the amount contemplated in Section 3.1(a)(i). Purchaser shall be
entitled to characterize such payment as either a loan due from the applicable
Companies or a capital contribution to such Companies.

                  (c) Notwithstanding the foregoing, the Purchaser shall deposit
into an escrow account with Bennett Jones LLP (the "Escrow Agent") at Closing a
portion of the Purchase Price in the amount of $500,000 ($250,000 of such amount
shall be herein called the "Escrow Adjustment Amount" and the balance, as
adjusted from time to time pursuant to the terms of the Escrow Agreement, shall
be called the "Escrow Claim Amount"). The Escrow Adjustment Amount and the
Escrow Claim Amount shall be held and disbursed by the Escrow Agent in
accordance with the terms and provisions of an escrow agreement, a form of which
is attached hereto as Exhibit E (the "Escrow Agreement"). The Escrow Agreement
shall be executed by the Purchaser, the Sellers and the Escrow Agent and
delivered at Closing. All fees and expenses related to the Escrow Agreement and
the Escrow Agent shall be borne equally by the Purchaser and the Sellers.

                  (d) The parties agree to allocate the Purchase Price among the
Shares in accordance with Schedule 3.1(c).

                                      -9-
<PAGE>

                  Section 3.2 Post-Closing Purchase Price Adjustment. (a) Within
60 days after the Closing Date, Purchaser will prepare and deliver or cause to
be prepared and delivered to Sellers a combined balance sheet of the Companies
as of the close of business on the Closing Date (the "Closing Date Balance
Sheet"), as well as a reasonably detailed calculation of the proposed statement
of the Net Working Capital of the Companies prepared therefrom (the "Closing
Statement"), in each case, without giving effect to the transactions described
in this Agreement to be consummated at the Closing. The Closing Date Balance
Sheet and the Closing Statement (i) will reflect, respectively, the financial
position of the Companies and the components and calculation of the Net Working
Capital of the Companies, in each case as of the Closing Date, (ii) will be
prepared and determined as of the Closing Date in accordance with GAAP on the
basis that the Companies will continue to operate as going concerns and
unaffected by a change of control. The Net Working Capital of the Companies as
of the Closing Date determined in accordance with this Section 3.2 is referred
to herein as the "Closing Net Working Capital Balance." By way of illustration,
a sample calculation of the Net Working Capital of the Companies as of the
Balance Sheet Date is attached hereto as Schedule 3.2.

                  (b) If, within 30 days after the date of Purchaser's delivery
of the Closing Date Balance Sheet and the Closing Statement, Sellers determine
in good faith that the Closing Date Balance Sheet, the balance sheets of each of
the Companies which form the basis of the Closing Balance Sheet and the Closing
Statement have not been prepared or determined in accordance with this
Agreement, Sellers will give written notice to Purchaser within such 30 day
period (i) setting forth Sellers' proposed changes to the Closing Date Balance
Sheet and Closing Statement as prepared by Purchaser and the determination by
Sellers of the Closing Net Working Capital Balance and (ii) specifying in
reasonable detail Sellers' basis for disagreement with Purchaser's preparation
and determination of the Closing Date Balance Sheet and the Closing Net Working
Capital Balance. The failure by Sellers to so express disagreement and provide
such notice within such 30-day period will constitute the acceptance of
Purchaser's preparation of the Closing Date Balance Sheet and Closing Statement
and the computation of the Closing Net Working Capital Balance. If Purchaser and
Sellers are unable to resolve any disagreement between them with respect to the
preparation of the Closing Date Balance Sheet and Closing Statement and the
determination of the Closing Net Working Capital Balance within 15 days after
the giving of notice by Sellers to Purchaser of such disagreement, the items in
dispute may be referred by Purchaser or Sellers for determination to the
Edmonton, Alberta office of Ernst & Young (or, if they are unable or unwilling
to serve, another nationally recognized accounting firm not affiliated with any
Company, Sellers or Purchaser) (the "Accountants"). Purchaser and Sellers will
use commercially reasonable efforts to cause the Accountants to render their
decision as soon as practicable thereafter, including by promptly complying with
all reasonable requests by the Accountants for information, books, records and
similar items. The parties will instruct the Accountants to make a determination
as to each of the items in dispute or affected by items in dispute (but only
those items in dispute or affected by items in dispute) (A) in writing, (B) as
promptly as practicable after the items in dispute have been referred to the
Accountants (but in no event later than 30 days thereafter), and (C) in
accordance with this Agreement. The Accountants' determination will be
conclusive and binding upon each of the parties hereto. The fees and expenses of
the Accountants will be paid by the party against whom the majority of the
matters (based on dollar amounts) are determined. No party will disclose to the
Accountants, and the Accountants will not consider for any purpose, any
settlement discussions or settlement offer made by any party.

                                      -10-
<PAGE>

                  (c) During the period that Sellers' advisors and personnel are
conducting their review of Purchaser's preparation of the Closing Date Balance
Sheet and Closing Statement and determination of the Closing Net Working Capital
Balance, Sellers and its representatives will have access during normal business
hours to the work papers prepared by or on behalf of Purchaser and its
representatives in connection with Purchaser's preparation of the Closing Date
Balance Sheet and Closing Statement and determination of the Closing Net Working
Capital Balance.

                  Section 3.3 Adjustments to Purchase Price. (a) Upon the final
determination of the Closing Net Working Capital Balance, if the Closing Net
Working Capital Balance is less than the Reference Working Capital Balance, then
the Purchase Price will be decreased by, and Sellers will pay to Purchaser, the
amount of such difference.

                  (b) Any payment in respect of an adjustment required to be
made under Section 3.3 will be made by Sellers (i) firstly, by the application
of the Escrow Adjustment Amount, as necessary, and (ii) secondly, in cash by
wire transfer of immediately available funds to one account specified by
Purchaser, in writing, within five Business Days following the final
determination with respect to the Closing Net Working Capital Balance. Any
portion of the Escrow Adjustment Amount not required for application pursuant to
Section 3.3(b)(i) shall be disbursed by the Escrow Agent to Sellers coincident
with the completion of the adjustment contemplated by Section 3.3(a).

                                   ARTICLE IV
                         CLOSING AND CLOSING DELIVERIES

                  Section 4.1 The Closing. The closing of the sale and purchase
of the Shares (the "Closing") will take place at the offices of McCuaig
Desrochers located at 2401 Toronto Dominion Tower, 10088-102 Avenue, Edmonton
Alberta on the date of execution and delivery of this Agreement, at 10:00 a.m.,
local time. The date upon which the Closing occurs is herein called the "Closing
Date." Notwithstanding any other provision hereof, the Closing will be deemed
effective for accounting, tax and all other purposes as of 12:01 a.m., on the
Closing Date.

                  Section 4.2 Deliveries of Sellers. At the Closing, Sellers
will deliver to Purchaser:

                  (i) original stock certificates representing the Shares,
         together with such instruments of assignment, conveyance and transfer
         as Purchaser, acting reasonably, may deem necessary or desirable, duly
         executed by Sellers;

                  (ii) a certificate of the secretary of each Company certifying
         as to each such Company's charter, bylaws or other comparable
         documents;

                  (iii) evidence or copies of the consents, approvals, orders,
         qualifications or waivers required by any third party or Governmental
         Authority to consummate the transactions contemplated by this Agreement
         that are listed in Schedule 5.4;

                  (iv) each Ancillary Agreement required to be executed and
         delivered by parties other than Purchaser or its Affiliates, including
         the Employment Agreements; Non-Competition Agreement, the Lease
         Agreements, and the Escrow Agreement;

                                      -11-
<PAGE>

                  (v) an opinion of counsel for Sellers, McCuaig Desrochers, in
         the form attached hereto as Exhibit F;

                  (vi) as requested by Purchaser, resignations of and releases
         by the members of the board of directors and officers of each Company;

                  (vii) a certified copy of the resolutions of the board of
         directors of each Company approving the transactions contemplated in
         this Agreement;

                  (viii) all corporate records of each Company in the Sellers'
         possession, including, without limitation, the minute books, share
         register books and share certificate books of the Companies; and

                  (ix) such other documents and instruments as may be reasonably
         required to consummate the transactions contemplated by this Agreement
         and the Ancillary Agreements and to comply with the terms hereof and
         thereof.

                  Section 4.3 Deliveries by Purchaser. At the Closing, Purchaser
will deliver or cause to be delivered to Sellers:

                  (i) the Closing Cash Consideration by wire transfer of
         immediately available funds to the account specified pursuant to
         Section 3.1 (subject to the provisions of Section 3.1(b));

                  (ii) the cash necessary to complete the transaction
         contemplated in Section 3.1(b) by wire transfer of immediately
         available funds to the account specified pursuant to Section 3.1(b);

                  (iii) an opinion of Canadian counsel for Purchaser, Bennett
         Jones LLP, in the form attached hereto as Exhibit G;

                  (iv) each Ancillary Agreement required to be duly authorized
         and delivered by Purchaser or its Affiliates; and

                  (v) such other documents and instruments as may be reasonably
         required to consummate the transactions contemplated by this Agreement
         and the Ancillary Agreements and to comply with the terms hereof and
         thereof.

                                    ARTICLE V
                         REPRESENTATIONS AND WARRANTIES
                                 OF THE SELLERS

         The Sellers jointly and severally represent and warrant to Purchaser as
of the date hereof and the Closing Date as follows:

                  Section 5.1 Corporate Existence and Power. Each Company is a
corporation duly incorporated, validly existing and in good standing under the
laws of its jurisdiction of organization. Each Company has all corporate power
required to carry on the Business as now conducted. Each Company is or will at
Closing be duly qualified to conduct business as a

                                      -12-
<PAGE>

foreign corporation and is in good standing in each jurisdiction where such
qualification is necessary.

                  Section 5.2 Authorization; Enforceability. The execution,
delivery and performance by each Company and Sellers of this Agreement and each
of the Ancillary Agreements to which it will be a party at the Closing are, and
will be at the Closing, within each party's powers and have been duly authorized
by all necessary actions, and no other action on the part of any such party is
necessary to authorize this Agreement or any of the Ancillary Agreements to
which any such party will be a party at the Closing. This Agreement has been,
and each of the Ancillary Agreements to which each Company or any Seller will be
a party at the Closing will have been, duly executed and delivered by such
party, as applicable. Assuming the due execution and delivery by Purchaser of
this Agreement and each of the Ancillary Agreements to which each Company or any
Seller will be a party at the Closing, this Agreement constitutes, and each
Ancillary Agreement to which each Company or any Seller will be a party at the
Closing will constitute at the Closing, valid and binding agreements of such
party, as applicable, enforceable against each in accordance with their terms,
except as such enforcement may be limited by bankruptcy, insolvency,
reorganization, moratorium or other similar laws affecting enforcement of
creditors' rights generally and by general principles of equity (whether applied
in a proceeding at law or in equity).

                  Section 5.3 Governmental Authorization. The execution,
delivery and performance by each Company and Sellers of this Agreement and each
Ancillary Agreement to which any one of the Companies or Sellers will be a party
at the Closing require no consent, approval, order, authorization or action by
or in respect of, or filing with, any Governmental Authority.

                  Section 5.4 Non-Contravention; Consents. Except as disclosed
in Schedule 5.4, the execution, delivery and performance by each Company and
Sellers of this Agreement and each Ancillary Agreement to which each Company or
Sellers will be a party at the Closing, and the consummation of the transactions
contemplated hereby and thereby do not and will not at the Closing (a) violate
the charter documents or bylaws of any Company, (b) violate any applicable Law
or Order, (c) require any filing with or Permit, consent or approval of, or the
giving of any notice to, any Person (including filings, consents or approvals
required under any Permits of any Company or any licenses to which any Company
is a party), (d) result in a violation or breach of, conflict with, constitute
(with or without due notice or lapse of time or both) a default under, or give
rise to any right of termination, cancellation or acceleration of any right or
obligation of any Company or to a loss of any benefit to which any Company is
entitled under, any Contract, agreement or other instrument binding upon any
Company or any license, franchise, Permit or other similar authorization held by
any Company, or (e) result in the creation or imposition of any Lien (other than
Permitted Liens) on any asset of any Company.

                  Section 5.5 Capitalization. (a) The authorized Capital Stock
of each Company, the par value of each class of stock, if applicable, and the
total number of issued and outstanding shares of each Company is set forth on
Schedule 5.5. The Shares are owned of record by the Sellers as set forth in
Schedule 5.5. All of the Shares are duly authorized, validly issued and
outstanding, fully paid and nonassessable, and were issued free of preemptive
rights in compliance with applicable corporate and securities laws. Except as
set forth on Schedule 5.5, there are no options, warrants, purchase rights,
subscription rights, conversion rights, exchange

                                      -13-
<PAGE>

rights, convertible securities or other rights, agreement, arrangements or
commitments of any character relating to the Shares or obligating any Company to
issue, sell or otherwise cause to become outstanding any shares of capital
stock. There are no outstanding contractual obligations of any Company to
repurchase, redeem or otherwise acquire any shares of, or interests in, any such
Company or to provide funds to, or make any investment (in the form of a loan,
capital contribution or otherwise) in, any other Person. The Shares constitute
all of the equity interests in the Companies and are owned of record and
beneficially solely by the Sellers, free and clear of all Liens. Upon
consummation of the transactions contemplated by this Agreement, the Purchaser
will acquire good, valid and indefeasible title to all of the Shares, free and
clear of all Liens. There are no voting trusts, agreements, proxies or other
understandings in effect with respect to the voting or transfer of any of the
Shares. There are no outstanding or authorized stock appreciation, phantom stock
participation or similar rights with respect to any Company. None of the
Companies incorporated in a Canadian jurisdiction is a "reporting issuer" under
relevant securities legislation or a "distributing corporation" under relevant
corporate legislation. None of the Companies incorporated in a Canadian
jurisdiction is a "private issuer" within the meaning of the Securities Act
(Alberta).

                  (b) The stock registers of each Company accurately record: (i)
the name and address of each Person owning of Shares, and (ii) the certificate
number of each certificate evidencing Shares, the number of shares evidenced by
each such certificate, the date of issuance thereof and, in the case of
cancellation, the date of cancellation.

                  Section 5.6 Subsidiaries. Except as disclosed in Schedule 5.6,
no Company owns any Capital Stock or other equity or ownership or proprietary
interest in any corporation, partnership, association, trust, joint venture or
other entity.

                  Section 5.7 Financial Statements. (a) A true and complete copy
of the Reference Financial Statements, are attached hereto as Schedule 5.7. The
Reference Financial Statements have been derived from the books and records of
each Company, have been prepared in accordance with GAAP and fairly present the
financial position of each Company at the respective dates thereof and the
results of the operations of each Company for the periods indicated.

                  (b) The books of account, minute books, stock record books and
other records of each Company, all of which have been made available to
Purchaser, are complete and correct in all material respects.

                  Section 5.8 No Undisclosed Liabilities. There are no
liabilities or Indebtedness or, to the knowledge of the Sellers, any facts or
circumstances which could give rise to liabilities or Indebtedness, whether
accrued, contingent, absolute, determined, determinable or otherwise, of any
Company other than (a) liabilities or Indebtedness fully provided for in the
Reference Financial Statements and (b) other liabilities or Indebtedness
incurred since July 31, 2004 in the Ordinary Course of Business.

                  Section 5.9 Tax Matters. (a) Except as disclosed in Schedule
5.9(a):

                  (i) all Returns for all periods which end prior to or which
         include the Closing Date that are, were or shall be required to be
         filed prior to Closing by or on

                                      -14-
<PAGE>

         behalf of any Company have been or shall be filed on a timely basis in
         accordance with the applicable laws of each Governmental Authority and
         all Taxes due and payable by the Companies have been paid or remitted
         to the proper Governmental Authority on a timely basis;

                  (ii) all such Returns that have been filed were, when filed,
         and continue to be, true, correct and complete, and all such Returns
         that will be filed shall be true, correct and complete when filed and
         properly reflect, and do not in any way understate, the taxable income
         or liability for taxes of any of the Companies;

                  (iii) each Company has paid, or made adequate provision in the
         Reference Financial Statements for the payment of all of Taxes that
         have or may become due for all periods which end on or prior to the
         Balance Sheet Date, including all Taxes reflected on the Returns
         referred to in this Section 5.9, or to the Sellers' knowledge, or that
         are included or reflected in any assessment, proposed assessment or
         notice, either formal or informal, received by any Company from any
         Governmental Authority;

                  (iv) no claim has ever been made by a Governmental Authority
         in a jurisdiction where a Company does not file Returns that such
         Company is or may be subject to taxation by that jurisdiction and
         neither the Sellers nor any of the Companies has any reason to believe
         such to be required;

                  (v) all Taxes that any Company was or is required by Law to
         withhold or collect have been duly withheld or collected and, to the
         extent required, have been paid to the appropriate Governmental
         Authorities;

                  (vi) there are no Liens with respect to Taxes on the assets of
         any Company, other than Permitted Liens;

                  (vii) no adjustment relating to such Returns has been proposed
         formally or, to the Sellers' knowledge, informally or threatened by any
         Tax Authority and, to the Sellers' knowledge, no basis exists for any
         adjustment;

                  (viii) there are no pending or, to the Sellers' knowledge,
         threatened actions or proceedings for the assessment or collection of
         Taxes against any Company;

                  (ix) no Company has been included in any consolidated,
         combined or unitary Return and has no liability for any Taxes of any
         Person as a transferee or successor, by contract or otherwise.

                  (x) no Company has been at any time a member of any
         partnership or joint venture or the holder of a beneficial interest in
         any trust for any period for which the statute of limitations for any
         relevant Tax has not expired;

                  (xi) no Company is doing business in or engaged in a trade or
         business in any jurisdiction in which it has not filed any applicable
         income or franchise Tax Return;

                                      -15-
<PAGE>

                  (xii) each Company has maintained such records in respect of
         each transaction, event and item (including as required to support
         otherwise allowable deductions and losses) as are required under
         applicable Tax Law;

                  (xiii) no Company is a party to or bound by any Tax allocation
         or Tax-Sharing Agreement and or has a current or potential contractual
         obligation to indemnify any other person with respect to Taxes;

                  (xiv) the unpaid Taxes of each Company did not as of July 31,
         2004 exceed the reserve for Tax liabilities (other than the reserve for
         deferred Taxes to reflect timing differences between book and Tax
         income) on the books of such Company at that time;

                  (xv) each Company uses the accrual method of accounting for
         Tax accounting purposes;

                  (xvi) none of the Sellers are a non-resident of Canada for the
         purposes of the ITA; and

                  (xvii) any reference to the Companies shall, for purposes of
         this Section 5.9, refer equally to any predecessor of the Companies (as
         determined by corporate law principles).

                  (b) (i) There are no outstanding waivers or agreements
extending the statute of limitations for any period with respect to any Tax to
which any Company may be subject nor have any such waivers or agreements been
requested; (ii) no Company has derived any material amount of income from
sources, or engaged in business, outside Canada (except through Oilco America)
(iii) to the Sellers' knowledge, there are no requests for information currently
outstanding that could affect the Taxes of any Company; (iv) to the Sellers'
knowledge, there are no proposed reassessments of any property owned by any
Company or other proposals that are reasonably likely to increase the amount of
any Tax to which any Company would be subject; and (v) no power of attorney that
is currently in force has been granted with respect to any matter relating to
Taxes that could affect any Company.

                  (c) Schedule 5.9 (c) lists all Returns filed with respect to
each Company for all taxable periods since the year ended December 31, 2000 and
specifies the jurisdictions in which each such Return has been filed, and
indicates any Returns that currently are the subject of audit, and each Company
has delivered to the Purchaser correct and complete copies of all such Returns
since the year ended December 31, 2000, and of any examination reports and any
statements of deficiencies proposed to be assessed against, or agreed to by any
Company.

                  Section 5.10 Absence of Certain Changes.Since the Balance
Sheet Date, each Company has conducted the Business in the Ordinary Course of
Business and in such conduct of the Business there has not been any event,
occurrence, development or circumstances which has had or which could reasonably
be expected to have a Material Adverse Effect. Since the Balance Sheet Date:

                  (i) there has not occurred any damage, destruction or casualty
         loss (whether or not covered by insurance) with respect to any asset
         owned or operated by any Company;

                                      -16-
<PAGE>

                  (ii) no Company has made any dividend or other distribution to
         its shareholders or equity interest owners; and

                  (iii) no Company has paid or agreed to pay any bonuses or
         similar compensation except as otherwise previously disclosed to
         Purchaser.

                  Section 5.11 Contracts. (a) Except as specifically disclosed
in Schedule 5.11(a), no Company is a party to or bound by any lease, agreement,
contract, commitment or other legally binding contractual right or obligation
(whether written or oral) (collectively, "Contracts") that is of a type
described below:

                  (i) any lease (whether of real or personal property), not
         including the leases disclosed or required to be disclosed on Schedule
         5.15(b);

                  (ii) any agreement for the purchase of materials, supplies,
         goods, services, equipment or other assets that provides for aggregate
         payments by any Company of $50,000 or more;

                  (iii) any sales, distribution or other similar agreement
         providing for the sale by any Company of materials, supplies, goods,
         services, equipment or other assets that provides for aggregate
         payments to such Company of $50,000 or more;

                  (iv) any partnership, joint venture or other similar agreement
         or arrangement;

                  (v) any Contract pursuant to which any third party has rights
         to own or use any material asset of any Company, including any
         Intellectual Property Right of such Company;

                  (vi) any agreement relating to the acquisition or disposition
         of any business (whether by merger, sale of stock, sale of assets or
         otherwise) or granting to any Person a right of first refusal, first
         offer or other right to purchase any of the assets of any Company;

                  (vii) any agreement relating to Indebtedness (in any case,
         whether incurred, assumed, guaranteed or secured by any asset of any
         Company) other than accruals recorded in the Ordinary Course of
         Business;

                  (viii) any license, franchise or similar agreement;

                  (ix) any agency, dealer, sales representative, marketing or
         other similar agreement;

                  (x) any Contract that may not be terminated by any Company
         without payment of penalty on less than 90 days' prior notice;

                  (xi) any agreement with (A) any stockholder of any Company or
         any other Affiliate of any Company or (B) any director or officer of
         any Company or with any

                                      -17-
<PAGE>

         "associate" (as such term is defined in the Securities Act (Alberta))
         of any such director or officer;

                  (xii) any management service, consulting or any other similar
         type of agreement;

                  (xiii) any warranty, guaranty or other similar undertaking
         with respect to any contractual performance (or any Company's standard
         forms of any of the foregoing) or agreement to indemnify any Person; or

                  (xiv) any other agreement, commitment, arrangement or plan not
         made in the Ordinary Course of Business of any Company that is material
         to such Company or the Business.

                  (b) Each Contract disclosed in or required to be disclosed in
Schedule 5.11(a) is a valid and binding agreement of the Company which is a
party thereto and, to the knowledge of Sellers, each other party thereto,
enforceable in accordance with its respective terms, except as such enforcement
may be limited by bankruptcy, insolvency, reorganization, moratorium or other
similar laws affecting enforcement of creditors' rights generally and by general
principles of equity (whether applied in a proceeding at law or in equity). None
of the Companies nor, to the knowledge of Sellers, any other party to any such
Contract is in default or breach (with or without due notice or lapse of time or
both) in any material respect under the terms of any such Contract. To the
knowledge of Sellers, there is no event, occurrence, condition or act which,
individually or in the aggregate, with the giving of notice or the passage of
time or both, or the happening of any other event or condition, could reasonably
be expected to become a material default or event of default under any such
Contract. Sellers have delivered or made available to Purchaser true and
complete originals or copies of all written Contracts disclosed in or required
to be disclosed in Schedule 5.11(a).

                  Section 5.12 Insurance Coverage. Schedule 5.12 contains a list
of all of the insurance policies and fidelity bonds covering the assets,
Business, operations, employees, officers and directors of the Companies. There
is no material claim by any Company pending under any of such policies or bonds
as to which coverage has been questioned, denied or disputed by the underwriters
of such policies or bonds. All premiums due and payable under all such policies
and bonds have been paid and each Company has complied with the terms and
conditions of all such policies and bonds. Such policies of insurance and bonds
(or other policies and bonds providing substantially similar insurance coverage)
are in full force and effect. Sellers have no knowledge of any threatened
termination of any of such policies or bonds. Since the last renewal date of any
insurance policy, there has not been any adverse change in the relationship of
any Company with its respective insurers or the premiums payable pursuant to
such policies.

                  Section 5.13 Litigation. (a) There is no action, suit,
investigation, arbitration or administrative or other proceeding pending or, to
the knowledge of Sellers, threatened, against or affecting any Company before
any court or arbitrator or any Governmental Authority, including, but not
limited to, any action which challenges or seeks to prevent, enjoin, alter or
materially delay the transactions contemplated by this Agreement and any
Ancillary Agreements to which Sellers will be a party at Closing. Sellers do not
know of any valid basis for any such action, suit, investigation, arbitration or
proceeding against or affecting any Company or the Business.

                                      -18-
<PAGE>

There are no outstanding judgments, Orders, injunctions, decrees, stipulations
or awards (whether rendered by a court, administrative agency, arbitral body or
Governmental Authority) against any Company or the Sellers.

                  (b) There are no claims, whether in contract or tort, for
defective or allegedly defective products or workmanship pending, nor to the
knowledge of the Sellers, threatened, against any Company.

                  Section 5.14 Compliance with Laws; Permits. (a) Each Company
has complied with all Laws. Sellers know of no fact, circumstance, condition or
situation existing which, after notice or lapse of time or both, would
constitute noncompliance by any Company or give rise to any future liability of
any Company with respect to any Law heretofore or currently in effect. Neither
the use, condition nor other aspect of any of the assets of the Business or
other right, property or asset used in or associated with the Business is or has
been in violation of any applicable Law. No Company has received notice of any
violation of any Law, or any potential liability under any Law, relating to the
operation of the Business or to any of its assets, operations, processes,
results or products, nor is any Seller aware of any such violation or potential
liability. Sellers are not aware of any future requirement of any applicable Law
which is due to be imposed on any Company that is reasonably likely to increase
the cost of complying with such Law.

                  (b) Schedule 5.14(b) sets forth a list of each government or
regulatory license, authorization, permit, franchise, consent and approval (the
"Permits") issued and held by or on behalf of any Company or required to be so
issued and held to carry on the Business as currently conducted. Except as
disclosed in Schedule 5.14(b), each Company is the authorized legal holder of
the Permits, and each Permit is valid and in full force and effect. No Company
is in default under, and no condition exists that with notice or lapse of time
or both could constitute a default or could give rise to a right of termination,
cancellation or acceleration under, any Permit held by any Company.

                  Section 5.15 Assets; Properties; Sufficiency of Assets. (a)
Except for Inventory disposed of in the Ordinary Course of Business of each
Company, each Company has good title to, or in the case of leased property has
valid leasehold interests in, the property and assets (whether real or personal,
tangible or intangible) reflected in the Reference Financial Statements as of
the Balance Sheet Date or acquired after the date thereof, free and clear of all
Liens, except for Permitted Liens and Liens disclosed in Schedule 5.15(a).

                  (b) Other than as set forth specifically on Schedule 5.15(b),
the Companies own no Real Property assets. Schedule 5.15(b) also sets forth a
list of all real property assets leased by each Company (the "Real Property").
Each Company is a tenant or possessor in good standing thereunder (with a right
of quiet enjoyment therein) and all rents due under such leases have been paid.
None of the Companies and, to the knowledge of Sellers, any other party to any
such lease is in default or breach (with or without due notice or lapse of time
or both) in any material respect under the terms of any such lease. Each Company
is in peaceful and undisturbed possession of the space and/or estate under each
lease of which it is a tenant. No Company has received any notice of any
appropriation, condemnation or like proceeding, or of any violation of any
applicable zoning Law or Order relating to or affecting the Real Property, and
to Sellers' knowledge, no such proceeding has been threatened or commenced.

                                      -19-
<PAGE>

                  (c) The tangible personal property of each Company is in all
material respects in good repair and operating condition (subject to normal
maintenance requirements and normal wear and tear excepted).

                  Section 5.16 Intellectual Property. Schedule 5.16(a) contains
a complete list of all Intellectual Property owned or used by the Companies
together with the details of any registrations and applications for registration
in respect thereto. All such registrations and applications for registration are
valid and subsisting and are in good standing and are enforceable against third
parties and are recorded, maintained and renewed in the name of the Companies in
the appropriate offices to preserve the rights thereof and thereto. Except for
matters which would not result in a Material Adverse Effect:

                  (a) the Companies own or have the right to use pursuant to
license, sublicense, agreement or permission all Intellectual Property necessary
for the operation of the Business as such Business is currently and has
historically operated, free of any claims or encumbrances of any nature. Each
item of Intellectual Property currently owned or used by the Companies will be
owned or available for use by the Companies on identical terms and conditions
immediately after, and after giving effect to, the Closing;

                  (b) except as disclosed in Schedule 5.16(a), the Companies
have the exclusive right to use the Intellectual Property in all jurisdictions
in which they are currently or have historically been used;

                  (c) the Companies have not permitted or licensed any Person to
use any of the Intellectual Property and the Companies do not have any knowledge
that the Intellectual Property is being infringed by any other Person. Schedule
5.16(a) sets forth a description of all actions the Companies have taken to
maintain and protect each item of Intellectual Property;

                  (d) the licenses or other agreements relating to the
Intellectual Property listed in Schedule 5.16(a) do not require consent to the
change of control of the Companies resulting from the transactions contemplated
herein, and there are no other such licenses or other agreements;

                  (e) Sellers have no knowledge or information of any facts
which would affect the validity, enforceability, scope or registrability of any
of the Intellectual Property;

                  (f) no claim has been asserted (or is likely to be asserted)
by the Companies with respect to the Intellectual Property nor have the
Companies issued, filed or made (or are likely to issue, file or make) any
notice, complaint, threat or claim against a third party alleging infringement
of the Intellectual Property or any Intellectual Property Right or other right
of the Companies by such third party;

                  (g) no claims have been asserted by any third party with
respect to, or challenging or questioning, the ownership, validity,
enforceability or use of, the Intellectual Property and there is no valid basis
for any such claim;

                  (h) neither Sellers nor the Companies have received any
notice, complaint, threat or claim alleging infringement of, and the conduct by
the Companies of the Business and the use by the Companies of the Intellectual
Property as currently and historically conducted and used by the Companies does
not infringe, any Intellectual Property Right or other right of any third party;

                                      -20-
<PAGE>

                  (i) neither Sellers nor the Companies have received any
notice, information, threat or claim suggesting that the Companies do not own
the Intellectual Property or, in the case of Intellectual Property which is
licensed to the Companies as further described in Schedule 5.16(a), that the
Companies do not have an exclusive right (unless otherwise stated in Schedule
5.16(a)) to exploit the Intellectual Property in any way or manner whatsoever;

                  (j) complete and correct copies of all agreements relating to
or affecting the Intellectual Property have been provided to the Purchaser and
are fully assignable to the Purchaser, without cost or consent;

                  (k) the Companies own all Intellectual Property in their own
name and, except as provided in the agreements listed in Schedule 5.16(a), none
of the Intellectual Property has been licensed from a third party;

                  (l) there are no royalty payments or license fees payable to
or by the Companies in respect of the Intellectual Property except as listed in
Schedule 5.16(a);

                  (m) neither Sellers nor the Companies have received any notice
that the Companies are in default (or, with the giving of notice or lapse of
time or both, would be in default) under any license to use the Intellectual
Property;

                  (n) to the extent that the Intellectual Property includes
software, the Intellectual Property:

                           (i) has, at all times, operated in accordance with
                  the operational documentation and specifications therefor
                  without any operating defects, delays or nonconformance and
                  without the requirement for work around or non-automated
                  process steps which could affect the operation of the Business
                  as currently operated; and

                           (ii) does not contain any unauthorized code,
                  disabling mechanism or protection feature designed to prevent
                  its use, including any clock, timer, counter, computer virus,
                  worm, software lock, drop dead device, Trojan-horse routine,
                  trap door or time bomb that may be used to distort, delete,
                  modify, damage or disable such Intellectual Property or
                  otherwise modify, disable or harm the Intellectual Property or
                  the Business;

                  (o) the Companies own all right, title and interest,
including, without limitation, any Intellectual Property Rights, in any
databases, data and corresponding information contained therein and which are
related to or used by the Business. The Companies have not received notice that
either the past, current or future use of any databases related to the Business
or use or disclosure of the information or any data contained therein: (i) has
violated or infringed upon, or is violating or infringing upon, the rights,
title or interest of any Person; (ii) breaches any duty or obligation owed to
any Person; or (iii) violates the privacy or any Law relating to the privacy of
any Person;

                  (p) no proceeding, opposition, office action or claim has been
asserted (or is likely to be asserted) by the Companies challenging or
questioning the ownership, validity,

                                      -21-
<PAGE>

enforceability or right to use any intellectual property of a third party, or in
respect of any registration or application for registration in respect thereof;

                  (q) all of the persons who either alone or in concert with
others, developed, invented, improved, adapted, created, discovered, derived,
programmed, designed, modified, updated, corrected or maintained any element or
combination of elements in the Intellectual Property are:

                           (i) employees or former employees of the Companies,
                  all of whose work or access with respect to any of the
                  Intellectual Property occurred within the scope and in the
                  regular course of their employment, on the business premises
                  the Companies, and using only the equipment of the Companies;
                  or

                           (ii) independent contractors or former independent
                  contractors of the Companies, all of whom have, or as of
                  Closing will have, executed valid and binding written
                  assignments of any and all rights they may have in any element
                  or combination of elements in the Intellectual Property in a
                  form and substance reasonably satisfactory to Purchaser and
                  its counsel; and

                  (r) waivers of moral rights and all other similar rights with
respect to association with or integrity in a work, whether arising under
copyright legislation or otherwise, in favour of the Companies have been
obtained from each independent contractor, employee, or other entity who
participated in or contributed to the development, invention, improvement,
adaptation, creation, discovery, derivation, programming, designing,
modification, updating correcting or maintenance of any element or combination
of elements of the Intellectual Property.

                  Section 5.17 Environmental Matters. (a) Except as disclosed in
Schedule 5.17(a):

                  (i) No Company has, and to Sellers' knowledge no other party
         has, generated, recycled, used, treated or stored on, transported to or
         from, or Released or disposed in, on or under, the Property any
         Constituents of Concern or, to the knowledge of Sellers, in, on or
         under any property adjoining or adjacent to any Property, except in
         compliance with applicable Environmental Laws;

                  (ii) No Company has disposed of Constituents of Concern from
         Property at any off-site facility except in compliance with applicable
         Environmental Laws;

                  (iii) Each Company has been and is in compliance with (a)
         applicable Environmental Laws and (b) the requirements of Permits
         issued under such Environmental Laws with respect to the Property;

                  (iv) There are no pending nor, to the knowledge of Sellers,
         threatened Environmental Claims against any Company or any Property;

                  (v) Sellers have no knowledge of any facts, circumstances,
         conditions or occurrences regarding any Company's Business or with
         respect to any Property or any property adjoining any Property that
         could reasonably be expected to (i) form the basis of an Environmental
         Claim against any Company or any of the Property or assets of any

                                      -22-
<PAGE>

         Company or (ii) cause any Property or assets of any Company to be
         subject to any restrictions on its ownership, occupancy, use or
         transferability under any Environmental Law;

                  (vi) There are no underground storage tanks or sumps located
         on any Property;

                  (vii) None of the Companies or any of their Property is listed
         or, to the knowledge of Sellers, proposed for listing on any similar
         federal, provincial, state or foreign list of sites requiring
         investigation or clean-up;

                  (viii) Each Company has obtained all required Environmental
         Permits and is and has been in compliance with the terms of each
         Environmental Permit. Except as set forth in Schedule 5.17(a)(viii),
         there are no Environmental Permits of any Company that are
         nontransferable or require consent, notification or other action to
         remain in full force and effect following the consummation of the
         transactions contemplated hereby; and

                  (ix) No Company has any liability under any applicable
         Environmental Law (including an obligation to remediate any
         Environmental Condition whether caused by any Company or any other
         Person).

                  (b) Each Company has delivered or made available to Purchaser
true and complete copies of all environmental reports, investigations,
assessments, studies, audits, tests, reviews or other analyses commenced or
conducted by or on behalf of any Company (or by a third party of which Sellers
have knowledge) in relation to the Business of any Company.

                  (c) For purposes of this Section 5.17, the term "the Company"
(including the use of such term in the term "Property") will include any entity,
which is, in whole or in part, a predecessor of any Company (as determined in
accordance with corporate law of principles).

                  Section 5.18 Plans and Material Documents. Except as set forth
in Schedule 5.18, the Companies do not and have not agreed to sponsor,
administer, maintain or contribute nor have they ever sponsored, administered,
maintained or contributed nor have they ever been required to sponsor,
administer, maintain or contribute to any Benefit Plans. The Companies have no
statutory, regulatory or contractual obligations (written or oral), liabilities
or responsibilities respecting Benefit Plans.

                  Section 5.19 Affiliate Transactions. (a) Except as disclosed
in Schedule 5.19(a), there are no outstanding payables, receivables, loans,
advances and other similar accounts between any Company, on the one hand, and
any of its Affiliates, on the other hand, relating to the Business.

                  (b) Except as disclosed in Schedule 5.19(b), to the knowledge
of Sellers, no director or officer of any Company possesses, directly or
indirectly, any ownership interest in, or is a director or officer of, any
Person which is a supplier, customer, lessor, lessee, licensor, or competitor of
any Company. Ownership of 1% or less of any class of securities of a Person
whose securities are publicly traded will not be deemed to be an ownership
interest for purposes of this Section 5.19(b).

                                      -23-
<PAGE>

                  Section 5.20 Customer and Supplier Relations. Schedule 5.20
includes a complete and correct list of (a) all customers of the Business who
have made aggregate purchases in excess of $300,000 in fiscal year 2004 and (b)
all suppliers from whom the Companies have purchased in excess of $100,000 in
equipment or supplies in fiscal 2004. The relationships of the Companies with
such customers and suppliers of the Companies are good commercial working
relationships and, except as disclosed in Schedule 5.20, none of such customers
or suppliers has canceled, terminated or otherwise materially altered or
notified any Company of any intention to cancel, terminate or materially alter
its relationship with any Company since the Balance Sheet Date and, to the
knowledge of Sellers, there will not be any such change as a result of the
transactions contemplated by this Agreement.

                  Section 5.21 Employment Matters. (a) No Company is a party to
any labor or collective bargaining agreement.

                  (b) No labor organization or group of Company employees has
made a pending demand for recognition, there are no representation proceedings
or petitions seeking a representation proceeding presently pending or, to the
knowledge of Sellers, threatened to be brought or filed with any labor relations
tribunal, and there is no organizing activity involving any Company pending or,
to the knowledge of Sellers, threatened by any labor organization or group of
employees.

                  (c) There are no (i) strikes, work stoppages, slow-downs,
lockouts or arbitrations or (ii) grievances or other labor disputes pending or,
to the knowledge of Sellers, threatened against or involving any Company.

                  (d) There are no complaints, charges or claims against any
Company pending or, to the knowledge of Sellers, threatened to be brought or
filed with any Governmental Authority based on, arising out of, in connection
with, or otherwise relating to the employment by any Company, of any Person,
including any claim for workers' compensation.

                  (e) Each Company is in compliance with all Laws and Orders in
respect of employment and employment practices and the terms and conditions of
employment and wages and hours, and has not, and is not, engaged in any unfair
labor practice.

                  (f) Schedule 5.21(f) contains a complete and accurate list of
the following information for each employee, officer or director of each
Company, including each employee on leave of absence or layoff status: employer;
name; job title; current compensation paid or payable and any change in
compensation since the Balance Sheet Date; vacation accrued as of a recent date;
and all bonuses and any other amounts to be paid by each Company at or in
connection with the Closing.

                  (g) Except as set forth in Schedule 5.21(g), to the knowledge
of Sellers, no employee, officer or director of any Company is a party to, or is
otherwise bound by, any confidentiality, non-competition, proprietary rights
agreement or similar agreement that would affect (i) the performance of his or
her duties as an employee, officer or director or (ii) the ability of Purchaser
to conduct the Business after the Closing Date.

                  (h) Except for oral employment agreements provided for by
implication of general employment Law, and except as otherwise disclosed in any
Schedule hereto, no

                                      -24-
<PAGE>

Company is a party to or bound by any agreement, contract, commitment or other
legal binding contractual right or obligation relating to any employment,
deferred compensation, severance, bonus, retirement or other similar agreement
or plan in effect as of the date hereof (including in respect of any advances or
loans to any employees) and entered into or adopted by any Company.

                  Section 5.22 Accounts Receivable. Except as set forth in
Schedule 5.22, all of the Accounts Receivable reflected on the Reference Balance
Sheet (net of any applicable reserves set forth on the Reference Financial
Statements as of the Balance Sheet Date) and all Accounts Receivable which have
arisen since the Balance Sheet Date (net of any additional applicable reserves
established since such date in the Ordinary Course of Business of each Company)
are valid and enforceable claims, and the goods and services sold and delivered
which gave rise to such Accounts Receivable were sold and delivered in the
Ordinary Course of Business. Such Accounts Receivable are subject to no
defenses, offsets or recovery in whole or in part by the Persons whose purchase
gave rise to such Accounts Receivable or by third parties and such Accounts
Receivable are fully collectible within 135 days of the invoice date of each
such Account Receivable without resort to legal proceedings, except to the
extent of the amount of the reserve for doubtful accounts reflected on the
Closing Date Balance Sheet.

                  Section 5.23 Inventory. All Inventories reflected on the
Reference Financial Statements as of the Balance Sheet Date (net of any
applicable reserves set forth thereon) and all Inventories which have been
acquired or produced since the Balance Sheet Date (net of any additional
applicable reserves established since such date in the Ordinary Course of
Business of each Company) are in good condition, conform in all material
respects with the applicable specifications and warranties of each Company, are
not obsolete or excess, and are usable and salable in the Ordinary Course of
Business. The values at which such inventories are carried are consistent with
the past business practices of each Company.

                  Section 5.24 Product and Service Warranties; Defects;
Liability Defects; Liability. Except as disclosed in Schedule 5.24, each product
manufactured, sold, leased, delivered or installed or services performed by each
Company prior to the Closing has complied with and conformed to all applicable
federal, provincial, state, local or foreign laws and regulations, contractual
commitments and all applicable warranties of each Company. None of the Companies
has now or has had in the past standard terms and conditions of sale, lease,
delivery or installation for its products and services (including, without
limitation, whether by way of guaranty, warranty or indemnity provisions).
Except as disclosed in Schedule 5.24 or otherwise implied by Law, none of such
products or services are subject to any implied guaranty, warranty, or other
indemnity.

                  Section 5.25 Finders' Fees. Except as set forth on Schedule
5.25, there is no investment banker, broker, finder or other intermediary which
has been retained by or is authorized to act on behalf of any Company or Sellers
who might be entitled to any fee or other commission in connection with the
transactions contemplated by this Agreement or any of the Ancillary Agreements.

                  Section 5.26 Bank Accounts, etc. Schedule 5.26 sets out the
name of each bank or other depository in which the Companies maintain any bank
account, trust account or safety

                                      -25-
<PAGE>

deposit box and the names of all Persons authorized to draw thereon or who have
access thereto. There is no Person holding a general or special power of
attorney from the Companies.

                  Section 5.27 Disclosure. None of (i) the information contained
in the Schedules, (ii) any other written information furnished to Purchaser by
any Company or Sellers under this Agreement, or (iii) the representations and
warranties of the Sellers contained in this Agreement contain any untrue
statement of a material fact or omit to state a material fact required to be
stated therein or necessary in order to make the statements contained therein,
in light of the circumstances under which they were or are made, not false or
misleading.

                  Section 5.28 Reliance. Sellers hereby expressly acknowledge
that Purchaser is relying upon the representations and warranties of Sellers
contained in this Agreement or in any agreement, certificate or other document
delivered pursuant hereto in connection with the purchase of the Shares and the
other transactions contemplated hereunder.

                                   ARTICLE VI
                   REPRESENTATIONS AND WARRANTIES OF PURCHASER

         Purchaser represents and warrants to Sellers as of the date hereof and
the Closing Date as follows:

                  Section 6.1 Corporate Existence and Power. Purchaser is a
corporation duly incorporated, validly existing and in good standing under the
laws of Alberta, Canada. Purchaser has all corporate power required to carry on
its business as now conducted. Purchaser is duly qualified to conduct business
as a foreign corporation and is in good standing in each jurisdiction where such
qualification is necessary.

                  Section 6.2 Corporate Authorization; Enforceability. The
execution, delivery and performance by Purchaser of this Agreement and each of
the Ancillary Agreements to which it will be a party at the Closing are, and
will be at the Closing, within Purchaser's corporate power and have been duly
authorized by the board of directors of Purchaser and no other corporate action
on the part of Purchaser is necessary to authorize this Agreement or any of the
Ancillary Agreements to which Purchaser will be a party at the Closing. This
Agreement has been, and each of the Ancillary Agreements to which Purchaser will
be a party at the Closing will have been, duly executed and delivered by
Purchaser. Assuming the due execution and delivery by the Companies and Sellers
of this Agreement and each of the Ancillary Agreements to which Purchaser will
be a party at the Closing, this Agreement constitutes, and each Ancillary
Agreement to which Purchaser will be a party at the Closing will constitute at
the Closing, valid and binding agreements of Purchaser, enforceable against
Purchaser in accordance with their terms, except as such enforcement may be
limited by bankruptcy, insolvency, reorganization, moratorium or other similar
laws affecting enforcement of creditors' rights generally and by general
principles of equity (whether applied in a proceeding at law or in equity).

                  Section 6.3 Non-Contravention. The execution, delivery and
performance by Purchaser of this Agreement and each Ancillary Agreement to which
Purchaser will be a party at the Closing do not and will not at the Closing (a)
violate the articles of incorporation or bylaws or other similar constituent
documents of Purchaser, (b) violate any applicable Law or Order, (c) require any
filing with or Permit, consent or approval of, or the giving of any notice to,
any

                                      -26-
<PAGE>

Person (including filings, consents or approvals required under any Permits of
Purchaser or any licenses to which Purchaser is a party), or (d) result in a
violation of or breach of, conflict with, constitute (with or without due notice
or lapse of time or both) a default under, or give rise to any right of
termination, cancellation or acceleration of any right or obligation of
Purchaser or to a loss of any benefit to which Purchaser is entitled under, any
Contract, agreement or other instrument binding upon Purchaser or any license,
franchise, Permit or other similar authorization held by Purchaser.

                  Section 6.4 Finders' Fees. There is no investment banker,
broker, finder or other intermediary that has been retained by or is authorized
to act on behalf of Purchaser who might be entitled to any fee or other
commission in connection with the transactions contemplated by this Agreement or
any of the Ancillary Agreements.

                                   ARTICLE VII
                                CERTAIN COVENANTS

                  Section 7.1 Further Assurances (a) From time to time, as and
when requested by a party hereto, the other party or parties will execute and
deliver, or cause to be executed and delivered, all such documents and
instruments and will take, or cause to be taken, all such further actions, as
the requesting party may reasonably deem necessary or desirable to consummate
the transactions contemplated by this Agreement.

         (b) Within thirty (30) days after the Closing Date, Sellers shall
dissolve Oilco America in accordance with the Texas Business Corporations Act.

                  Section 7.2 Personal Information.

(a) The Sellers hereby covenant and agree to, and to cause the Companies to:

                           (i) advise the Purchaser of all purposes for which
                  Transferred Information was initially collected from or in
                  respect of the individual to which such Transferred
                  Information relates and all additional purposes where the
                  Sellers or the Companies, as the case may be, have notified
                  the individual of such additional purpose, and where required
                  by law, obtained the consent of such individual to such use or
                  disclosure, unless such use or disclosure is permitted or
                  authorized by law, without notice to, or consent from, such
                  individual;

                           (ii) where the purposes described by Section
                  7.2(a)(i) do not include a purpose for which the Transferred
                  Information is currently collected, used or disclosed by the
                  Companies, or the Sellers, as the case may be and where
                  required by law, notify the individual to whom such
                  information relates of such additional purpose, and where
                  required by law, obtain the consent of such individual to such
                  additional purpose, unless the use or disclosure contemplated
                  by such additional purpose is permitted or authorized by law,
                  without notice to, or consent from, such individual; and where
                  required by law, in a manner and form approved by Purchaser:
                  (A) notify the individual to whom the Transferred Information
                  relates of the disclosure of the Transferred Information to
                  the Purchaser as contemplated herein; and (B) obtain the
                  consent of such individual to such disclosure, unless such
                  disclosure is permitted or authorized by law, without notice
                  to, or consent from, such individual.

                                      -27-
<PAGE>

(b) The Purchaser hereby covenants and agrees to use and disclose the
Transferred Information only for those purposes for which the Transferred
Information was initially collected from or in respect of the individual to
which such Transferred Information relates, unless (i) the Companies, the
Sellers or the Purchaser have first notified such individual of such additional
purpose, and where required by law, obtained the consent of such individual to
such additional purpose, or (ii) such use or disclosure is permitted or
authorized by law, without notice to, or consent from, such individual.

(c) The Sellers and Purchaser covenant and agree that, in the event Closing does
not occur, each party who received Transferred Information shall, if such
information is still in the custody of or under the control of such party,
either, at such party's option, destroy such information or return it to the
party that disclosed it.

                                  ARTICLE VIII
                                   TAX MATTERS

                  Section 8.1 Tax Indemnification.The Sellers, jointly and
severally, hereby, agree to indemnify and hold harmless the Purchaser and any
Company and their respective directors, officers, employees, agents and
representatives from and against, and shall reimburse them for any loss, damage,
liability or expense, including reasonable fees for attorneys and other outside
consultants, incurred in contesting or otherwise in connection with Taxes
imposed on the Purchaser or any Company as a result of any breach of warranty or
misrepresentation under Section 5.9 or any failure by the Sellers to fulfill
their obligations under this Article VIII.

                  Section 8.2 Returns. (a) Sellers shall cause to be prepared
and file or cause to be filed all Returns for any Company for all periods ending
on or prior to the Balance Sheet Date, which are to be filed after the Closing
Date. Such returns shall be prepared in a manner consistent with the Returns of
each Company filed on or prior to the Balance Sheet Date for prior fiscal
periods, so long such preparation is in compliance with applicable Law and GAAP.
Sellers shall pay, or cause to be paid, all Taxes shown as due (or required to
be shown as due) on such Returns to the extent that such Taxes exceed the
accrual or reserve for tax liability (as opposed to any reserve for deferred
Taxes which reflects timing differences between book and Tax income) shown on
the Reference Financial Statements as of the Balance Sheet Date.

                  (b) The Purchaser shall prepare or cause to be prepared and
file or cause to be filed (at its expense) any Returns of any Company for Tax
periods which begin after the Balance Sheet Date (and to the extent that the
operations of any Company on the Closing Date are required to be included in the
consolidated, unitary or combined Return of Purchaser and its Affiliates, the
Purchaser will cause the operations of any Company to be so included) provided
that Sellers shall provide such reasonable assistance to, and cooperate with,
the Purchaser in order to have such Returns prepared in draft form at least 60
days prior to the statutory filing deadline.

                  Section 8.3 Refunds. Any Tax refund (or comparable benefit
resulting from a reduction in Tax liability) for a period ending after the
Balance Sheet Date arising out of the carryback of a loss or credit incurred by
any Company in a taxable year ending after the Balance Sheet Date shall be the
property of any Company. All Tax refunds to any Company relating to

                                      -28-
<PAGE>

activities on or prior to the Balance Sheet Date shall belong to and be
distributed to the Sellers, to the extent any refund is in excess of Tax
receivables relating thereto.

                  Section 8.4 Contests. (a) In the case of an audit or
administrative or judicial proceeding that relates to periods ending on or
before the Balance Sheet Date for which Purchaser may seek indemnity from
Sellers, the Sellers shall have the right to participate in and control the
conduct of such audit or proceeding but only to the extent that such audit or
proceeding relates solely to a potential adjustment for which the Sellers have
acknowledged the Sellers' liability and the issue underlying the potential
adjustment does not recur for any period ending subsequent to the Balance Sheet
Date. The Sellers shall keep the Purchaser fully informed of the progress of any
such audit or proceeding and, if it appears in the sole discretion of the
Purchaser, that such audit or proceeding may reasonably be expected to adversely
affect the Purchaser or any Company, the Purchaser also may participate in any
such audit or proceeding. If the Sellers do not assume the defense of any such
audit or proceeding promptly, the Purchaser may defend and settle the same (for
the Sellers' account and at Sellers' expense) in such manner as it may deem
appropriate. In the event that a potential adjustment as to which the Sellers
would be liable is present in the same proceeding as a potential adjustment for
which the Purchaser would be liable, the Purchaser shall have the right, at its
expense, to control the audit or proceeding with respect to the latter potential
adjustment.

                  (b) With respect to a potential adjustment for which both the
Sellers and the Purchaser or any Company could be liable, or which involves an
issue that recurs for any period ending after the Balance Sheet Date (whether or
not the subject of audit at such time), (i) both the Purchaser and the Sellers
may participate in the audit or proceeding, each at its own expense, and (ii)
the audit or proceeding shall be controlled by that party which would bear the
burden of the greater portion of the dollar amount of the adjustment and any
corresponding adjustments that may reasonably be anticipated for future Tax
periods. The principle set forth in the preceding sentence shall govern also for
purposes of deciding any issue that must be decided jointly (in particular,
choice of judicial forum) in circumstances in which separate issues are
otherwise controlled hereunder by the Purchaser and the Sellers.

                  (c) Except as provided in Section 8.4(a) above, neither the
Purchaser nor the Sellers shall enter into any compromise or agree to settle any
claim pursuant to any Tax audit or proceeding which would adversely affect the
other party, or result in a material benefit to that party, for such year or a
subsequent year without the written consent of the other party, which consent
may not be unreasonably withheld or delayed.

                  Section 8.5 Miscellaneous. (a) The Sellers and the Purchaser
agree to treat all payments made by either to or for the benefit of the other
(including any payments to any Company) under this Article VIII, under other
indemnification provisions of this Agreement and for any misrepresentations or
breach of representations, warranties or covenants as adjustments to the
Purchase Price for Tax purposes and that such treatment shall govern for
purposes hereof except to the extent that the laws of a particular jurisdiction
provide otherwise, in which case such payments shall be made in an amount
sufficient to indemnify the relevant party on an after-tax basis, including the
Tax effect of such items in post-closing tax periods without regard to the time
value of money.

                                      -29-
<PAGE>

                  (b) Notwithstanding any provision herein to the contrary, the
obligations of the Sellers to indemnify and hold harmless the Purchaser and any
Company pursuant to this Article VIII, and the representations and warranties
contained in Section 5.9, shall terminate (as to any unasserted claims) as of
the close of business on the 90th day following expiration of the applicable
statutory period with respect to the Tax liabilities in question (giving effect
to any waiver, mitigation or extension thereof) during which an assessment,
reassessment, or other form of recognized document assessing liability for Taxes
could be issued.

                                   ARTICLE IX
                            SURVIVAL; INDEMNIFICATION

                  Section 9.1 Survival. Subject to Section 8.5(b), the
representations and warranties of the parties contained in this Agreement or in
any certificate or other writing delivered pursuant hereto or in connection
herewith will survive the Closing for eighteen (18) months; provided, however,
that the Selected Representations and Warranties will survive the Closing until
the dates on which such matters are barred by the applicable statute of
limitations. Notwithstanding the immediately preceding sentence, any
representation or warranty in respect of which indemnity may be sought under
this Agreement will survive the time at which it would otherwise terminate
pursuant to the immediately preceding sentence if written notice of the
inaccuracy or breach thereof giving rise to such right of indemnity shall have
been given to the party against whom such indemnity may be sought prior to such
time; provided, however, that the applicable representation or warranty will
survive only with respect to the particular inaccuracy or breach specified in
such written notice. All covenants and agreements of the parties contained in
this Agreement will survive the Closing indefinitely. The representations and
warranties will not be affected or reduced as a result of any investigation or
knowledge of Purchaser.

                  Section 9.2 Indemnification.(a) Subject to Article VIII,
Sellers will jointly and severally indemnify, defend and hold harmless Purchaser
and its officers, directors, employees, affiliates, stockholders and agents, and
the successors to the foregoing (and their respective officers, directors,
employees, affiliates, stockholders and agents) against any and all liabilities,
damages and losses, and, but only to the extent asserted in a Third-Party Claim,
punitive damages, and all costs or expenses, including reasonable attorneys' and
consultants' fees and expenses (attorney's fees shall be on a solicitor and his
own client basis) incurred in respect of Third-Party Claims or claims between
the parties hereto ("Damages"), incurred or suffered as a result of or arising
out of (i) the failure of any representation or warranty made by any Company
and/or Sellers in Article V to be true and correct as of the Closing Date as if
made anew at and as of the Closing Date, (ii) the breach of any covenant or
agreement made or to be performed by Sellers pursuant to this Agreement and
(iii) personal injury, death or property damage arising out of any product
manufactured or sold prior by the Company to the Closing Date, provided,
however, that the Sellers will not be liable under clause (i) of this Section
9.2(a)(i) (other than with respect to a breach of any of the Selected
Representations and Warranties) unless the aggregate amount of Damages
exceeds$100,000 and then for the full amount of such Damages up to and exceeding
$100,000; provided, further, that Sellers' liability under clause (i) of this
Section 9.2(a) will not exceed, in the aggregate, an amount equal to the
Purchase Price.

                  (b) Purchaser will indemnify, defend and hold harmless
Sellers, against Damages incurred or suffered as a result of or arising out of
(i) the failure of any representation or

                                      -30-
<PAGE>

warranty made by Purchaser in Article VI to be true and correct as of the
Closing Date, and (ii) the breach of any covenant or agreement made or to be
performed by Purchaser pursuant to this Agreement.

                  Section 9.3 Procedures. (a) If any Person who or which is
entitled to seek indemnification under Section 9.2 (an "Indemnified Party")
receives notice of the assertion or commencement of any Third-Party Claim
against such Indemnified Party with respect to which the Person against whom or
which such indemnification is being sought (an "Indemnifying Party") is
obligated to provide indemnification under this Agreement, the Indemnified Party
will give such Indemnifying Party reasonably prompt written notice thereof. Such
notice by the Indemnified Party will describe the Third-Party Claim in
reasonable detail, will include copies of all available material written
evidence thereof and will indicate the estimated amount, if reasonably
estimable, of the Damages that have been or may be sustained by the Indemnified
Party. The Indemnifying Party will have the right to participate in, or, by
giving written notice to the Indemnified Party, to assume, the defense of any
Third-Party Claim at such Indemnifying Party's own expense and by such
Indemnifying Party's own counsel (which will be reasonably satisfactory to the
Indemnified Party), and the Indemnified Party will cooperate in good faith in
such defense.

                  (b) If, within 10 days after giving notice of a Third-Party
Claim to an Indemnifying Party pursuant to Section 9.3(a), an Indemnified Party
receives written notice from the Indemnifying Party that the Indemnifying Party
has elected to assume the defense of such Third-Party Claim as provided in the
last sentence of Section 9.3(a), the Indemnifying Party will not be liable for
any legal expenses subsequently incurred by the Indemnified Party in connection
with the defense thereof; provided, however, that if the Indemnifying Party
fails to take reasonable steps necessary to defend diligently such Third-Party
Claim within ten days after receiving written notice from the Indemnified Party
or if the Indemnified Party reasonably believes the Indemnifying Party has
failed to take such steps or if the Indemnifying Party has not undertaken fully
to indemnify the Indemnified Party in respect of all Damages relating to the
matter, the Indemnified Party may assume its own defense, and the Indemnifying
Party will be liable for all reasonable costs and expenses (including, without
limitation, attorney's fees on a solicitor and his own client basis) paid or
incurred in connection therewith; provided, however, that the Indemnifying Party
shall not be liable for the costs and expenses of more than one counsel for all
Indemnified Parties in any one jurisdiction. Without the prior written consent
of the Indemnified Party (such consent not to be unreasonably withheld or
delayed), the Indemnifying Party will not enter into any settlement of any
Third-Party Claim which would lead to liability or create any financial or other
obligation on the part of the Indemnified Party for which the Indemnified Party
is not entitled to indemnification hereunder, or which provides for injunctive
or other non-monetary relief applicable to the Indemnified Party, or does not
include an unconditional release of all Indemnified Parties. If a firm offer is
made to settle a Third-Party Claim without leading to liability or the creation
of a financial or other obligation on the part of the Indemnified Party for
which the Indemnified Party is not entitled to indemnification hereunder and the
Indemnifying Party desires to accept and agree to such offer, the Indemnifying
Party will give written notice to the Indemnified Party to that effect. If the
Indemnified Party fails to consent to such firm offer within ten days after its
receipt of such notice, the Indemnified Party may continue to contest or defend
such Third-Party Claim and, in such event, the maximum liability of the
Indemnifying Party as to such Third-Party Claim will not exceed the amount of
such settlement offer. The Indemnified Party will provide the Indemnifying Party

                                      -31-
<PAGE>

with reasonable access during normal business hours to books, records and
employees of the Indemnified Party necessary in connection with the Indemnifying
Party's defense of any Third-Party Claim which is the subject of a claim for
indemnification by an Indemnified Party hereunder.

                  (c) Any claim by an Indemnified Party on account of Damages
which does not result from a Third-Party Claim (a "Direct Claim") will be
asserted by giving the Indemnifying Party reasonably prompt written notice
thereof. Such notice by the Indemnified Party will describe the Direct Claim in
reasonable detail, will include copies of all available material written
evidence thereof and will indicate the estimated amount, if reasonably
practicable, of Damages that has been or may be sustained by the Indemnified
Party. The Indemnifying Party will have a period of 20 days within which to
respond in writing to such Direct Claim. If the Indemnifying Party does not so
respond within such 20 day period, the Indemnifying Party will be deemed to have
rejected such claim, in which event the Indemnified Party will be free to pursue
such remedies as may be available to the Indemnified Party on the terms and
subject to the provisions of this Agreement.

                  (d) A failure to give timely notice or to include any
specified information in any notice as provided in Section 9.3(a), 9.3(b) or
9.3(c) will not affect the rights or obligations of any party hereunder, except
and only to the extent that, as a result of such failure, any party which was
entitled to receive such notice was deprived of its right to recover any payment
under its applicable insurance coverage or was otherwise materially prejudiced
as a result of such failure.

                  Section 9.4 Other Agreements Regarding Indemnification (a) All
indemnifiable Damages under this Agreement will be paid in cash in immediately
available funds unless otherwise satisfied pursuant to the Escrow Agreement.

                  (b) Purchaser shall have no claims for indemnification for a
breach of the representation and warranty contained in Section 5.22 with respect
to the collectibility of accounts receivable of the Companies as of the Closing
Date if the Business is required to change, subsequent to closing, its
historical collection practices in any material respect with regard to such
accounts receivable.

                  (c) Neither party shall be entitled to make any claim for
consequential damages against the other in connection with a Direct Claim.

                  Section 9.5 Reassignment of Accounts Receivable. In the event
of a claim for indemnification by Purchaser as result of a breach of the
representations or warranties regarding the collection of Accounts Receivable,
Purchaser shall, upon receipt from Sellers of a payment equal to the amount of
such Accounts Receivable, assign or reassign to Sellers such Account(s)
Receivable (including any retention or holdback) that is subject to the claim
for indemnification, and thereafter, Sellers shall have the right to collect
such Account(s) Receivables in such manner as it deems appropriate.

                  Section 9.6 Taxes. If a party receives an indemnification
payment hereunder, the paying party agrees to indemnify and hold harmless the
recipient party from any liability for Taxes attributable to such payment and
for any further Taxes attributable to such payment pursuant to the obligations
under this Section.

                                      -32-
<PAGE>

                  Section 9.7 Interest on Claims. The amount of any Direct Claim
or Third-Party Claim submitted under this Article IX or Article VIII as damages
or by way of indemnification shall bear interest, from and including the date
that the notice of claim is received by the Indemnifying Party at the prime rate
published by the Wall Street Journal from time to time calculated from and
including such date to but excluding the date reimbursement of such claim by the
Indemnifying Party is made, and the amount of such interest shall be deemed to
be part of such claim.

                                    ARTICLE X
                                  MISCELLANEOUS

                  Section 10.1 Notices. All notices and other communications
required or permitted hereunder will be in writing and, unless otherwise
provided in this Agreement, will be deemed to have been duly given when
delivered in person or when dispatched by electronic facsimile transfer (receipt
confirmed) or one Business Day after having been dispatched by a nationally
recognized overnight courier service to the appropriate party at the address
specified below:

                  (a) If to Purchaser to:

                           T-3 Energy Services Canada, Inc.
                           13111 Northwest Freeway, Suite 500
                           Houston TX 77047
                           Facsimile No.: 713-996-4123
                           Attention: Gus D. Halas

                  with a copy to:

                           Porter & Hedges, L.L.P.
                           700 Louisiana, 35th Floor
                           Houston, TX 77002
                           Facsimile No.: 713-226-0247
                           Attention: Richard L. Wynne

                  (b) If to Sellers, to:

                           Dave Cannings
                           c/o McCuaig Desrochers LLP
                           2401 TD Tower, 10088 102 Avenue
                           Edmonton AB Canada T5J 2Z1
                           Fax: (780) 426-0982

                  with a copy to:

                           McCuaig Desrochers LLP
                           2401 TD Tower
                           10088 - 102 Avenue
                           Edmonton, Alberta
                           Canada T5J 2Z1

                                      -33-
<PAGE>

                           Facsimile No.: 780-426-0982
                           Attention: Pierre C. Desrochers

                           or to such other address or addresses as any such
                  party may from time to time designate as to itself by like
                  notice.

                  Section 10.2 Amendments and Waivers. (a) Any provision of this
Agreement may be amended or waived if, but only if, such amendment or waiver is
in writing and is signed, in the case of an amendment, by each party to this
Agreement, or in the case of a waiver, by the party against whom the waiver is
to be effective.

                  (b) No failure or delay by any party in exercising any right,
power or privilege hereunder will operate as a waiver thereof nor will any
single or partial exercise thereof preclude any other or further exercise
thereof or the exercise of any other right, power or privilege. The rights and
remedies herein provided will be cumulative and not exclusive of any rights or
remedies provided by Law.

                  Section 10.3 Expenses. Whether or not the transactions
contemplated by this Agreement are consummated, except as otherwise expressly
provided for herein, the parties will pay or cause to be paid all of their own
fees and expenses incident to this Agreement and in preparing to consummate and
in consummating the transactions contemplated hereby, including the fees and
expenses of any broker, finder, financial advisor, investment banker, legal
advisor or similar person engaged by such party.

                  Section 10.4 Successors and Assigns. The provisions of this
Agreement will be binding upon and inure to the benefit of the parties hereto
and their respective successors and assigns. No party may assign, delegate or
otherwise transfer any of its rights or obligations under this Agreement
(including any transfer by way of merger or operation of law) without the
consent of each other party hereto; provided, however, that Purchaser may assign
its rights and obligations under this Agreement to a wholly-owned Affiliate of
Purchaser, it being understood that such assignment will not relieve Purchaser
from its obligations hereunder. Any assignment in violation of the preceding
sentence will be void ab initio.

                  Section 10.5 No Third-Party Beneficiaries. Except as provided
in Article X, this Agreement is for the sole benefit of the parties hereto and
their permitted successors and assigns, and nothing herein expressed or implied
will give or be construed to give to any Person, other than the parties hereto
and such permitted successors and assigns, any legal or equitable rights
hereunder.

                  Section 10.6 Governing Law. This Agreement will be governed
by, and construed in accordance with, the laws of the Province of Alberta,
Canada and the federal laws of Canada applicable therein, (regardless of the
Laws that might otherwise govern under principles of conflict of laws thereof),
and the parties attorn to the jurisdiction of the courts in Alberta for the
purpose of this Agreement.

                                      -34-
<PAGE>

                  Section 10.7 Public Announcements. From the date hereof until
the Closing Date, Sellers and Purchaser will obtain the approval of each other
before issuing, or permitting any agent or Affiliate to issue, any press
releases or otherwise making or permitting any agent or Affiliate to make any
public statements with respect to this Agreement and the transactions
contemplated hereby; provided, this provision will not restrict either party
from issuing any press release or public statement required by applicable
securities laws.

                  Section 10.8 Counterparts and Execution. This Agreement may be
executed by the parties hereto in separate counterparts, each of which when so
executed and delivered shall be deemed an original, but all such counterparts
shall together constitute one and the same agreement. This Agreement may be
executed and delivered by facsimile in accordance herewith, which when so
executed and delivered shall constitute a binding agreement.

                  Section 10.9 Table of Contents; Headings. The table of
contents and headings in this Agreement are for convenience of reference only
and will not control or affect the meaning or construction of any provisions
hereof.

                  Section 10.10 Entire Agreement. This Agreement (including the
Schedules and Exhibits hereto) and the Ancillary Agreements constitute the
entire agreement among the parties with respect to the subject matter of this
Agreement. This Agreement (including the Schedules and Exhibits hereto) and the
Ancillary Agreements supersede all prior agreements and understandings, both
oral and written, between the parties with respect to the subject matter hereof
of this Agreement.

                  Section 10.11 Severability; Injunctive Relief.(a) If any
provision of this Agreement or the application of any such provision to any
Person or circumstance is held invalid, illegal or unenforceable in any respect
by a court of competent jurisdiction, the remainder of the provisions of this
Agreement (or the application of such provision in other jurisdictions or to
Persons or circumstances other than those to which it was held invalid, illegal
or unenforceable) will in no way be affected, impaired or invalidated, and to
the extent permitted by applicable Law, any such provision will be restricted in
applicability or reformed to the minimum extent required for such provision to
be enforceable. This provision will be interpreted and enforced to give effect
to the original written intent of the parties prior to the determination of such
invalidity or unenforceability.

                  Section 10.12 Time. Time shall be of the essence of this
Agreement and of every part hereof and no extension or variation of this
Agreement shall operate as a waiver of this provision.

                                      -35-
<PAGE>

                  Section 10.13 Remedies. The remedies available to the parties
under this Agreement are in addition to and without limitation to any other
remedy at law or in equity.

                  The parties hereto have caused this Agreement to be duly
executed by their respective authorized officers as of the day and year first
above written.

                                   PURCHASER:

                                   T-3 ENERGY SERVICES CANADA, INC.

                                   By: /s/ Michael T. Mino
                                       -----------------------------------------
                                   Name: Michael T. Mino
                                         ---------------------------------------
                                   Title: Vice President & Secretary
                                          --------------------------------------

                                   SELLERS:

                                   /s/ David Cannings
                                   ---------------------------------------------
                                   David Cannings

                                   /s/ Linda Cannings
                                   ---------------------------------------------
                                   Linda Cannings

                                   SOUTHWOODS RANCHING & DEVELOPMENTS INC.

                                   By: /s/ David Cannings
                                       -----------------------------------------
                                   Name: David Cannings
                                         ---------------------------------------
                                   Title: President
                                          --------------------------------------

                                      -36-<PAGE>
                                                                    EXHIBIT 10.1

                               FOURTH AMENDMENT TO
                      AMENDED AND RESTATED CREDIT AGREEMENT

         THIS FOURTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (the
"Amendment") is made and entered into effective as of October 14, 2004, by and
among PETROQUEST ENERGY, L.L.C., a Louisiana limited liability company
("Borrower"); PETROQUEST ENERGY, INC., a Delaware corporation ("Guarantor");
BANK ONE, NA, a national banking association, (individually as a lender and as
agent, ("Bank One").

                                R E C I T A L S:

         WHEREAS, Borrower, Guarantor, Bank One and Union Bank of California
entered into an Amended and Restated Credit Agreement dated May 14, 2003 (which
as the same may have been and be amended from time to time is herein called the
("Credit Agreement"), pursuant to which Borrower amended and restated a
previously existing credit facility dated May 11, 2001; and

         WHEREAS, Union Bank of California has, by Assignment dated December 23,
2003, assigned and conveyed to Bank One all of its interest in the Credit
Agreement; and

         WHEREAS, Borrower, Guarantor and Bank One desire to amend the Credit
Agreement as herein set forth.

         NOW THEREFORE, in consideration of the premises herein contained and
other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, the parties hereto agree as follows:

         1. Definitions. Except as otherwise provided below, unless the context
hereof indicates otherwise, all capitalized terms used herein shall have the
same meaning as such capitalized terms are defined in the Credit Agreement.

                  (a) The following defined terms set forth in Article I of the
         Credit Agreement are hereby amended as follows:

                           "Borrowing Base Reduction Amount" means (a)
                  $1,500,000 for each of December 1, 2004 and January 1, 2005;
                  (b) for each month commencing February 1, 2005 until the next
                  semi-annual Borrowing Base redetermination pursuant to Section
                  2.2.2, $2,000,000, and (c) for each month thereafter, such
                  amount as designated by the Required Lenders in a notice to
                  Borrower from time to time in connection with each successive
                  scheduled semi-annual Borrowing Base redetermination pursuant
                  to Section 2.2.2 or successive unscheduled Borrowing Base
                  redetermination pursuant to Section 2.2.3.; provided however,
                  if the Required Lenders fail to timely designate a new
                  Borrowing Base Reduction Amount, then the Borrowing Base
                  Reduction Amount most recently in effect will continue in
                  effect until the Required Lenders designate a new Borrowing
                  Base Reduction Amount."
<PAGE>

                           "Guarantor" means individually and collectively (i)
                  PetroQuest Energy, Inc., a Delaware corporation; (ii)
                  Pittrans, Inc., an Oklahoma corporation; and (iii) their
                  respective successors and assigns.

                           "Required Lenders" means (i) Lenders having 100% of
                  the Aggregate Commitment if there are only two or fewer
                  Lenders; or (ii) Lenders in the aggregate having at least 66?%
                  of the Aggregate Commitment if there are more than two or more
                  Lenders or, (iii) if the Aggregate Commitment has been
                  terminated, Lenders in the aggregate holding at least 66?% of
                  the aggregate unpaid principal amount of the outstanding
                  Advances.

                  (b) Article I of the Credit Agreement is hereby amended by
         adding the following new defined terms and their definitions in proper
         alphabetical sequence as follows:

                           "SJM Acquisition Agreement" means that certain
                  Purchase and Sale Agreement among SJM Inc., William W. Rush,
                  Michael R. Coast and Roy M. Teel, Jr., as Sellers, and
                  Borrower, as Buyer, as amended and supplemented by supplement
                  and amendment to the Purchase and Sale Agreement dated October
                  14, 2004 regarding the purchase by Borrower of Oil & Gas
                  Properties located in Pittsburg, Atoka, McIntosh and McClain
                  Counties , Oklahoma and the purchase of all of the issued and
                  outstanding shares of Pittrans.

                           "Pittrans" means Pittrans, Inc., an Oklahoma
                  corporation, which after Closing, pursuant to the SJM
                  Acquisition Agreement, will be a Wholly Owned Subsidiary of
                  Borrower.

         2. Amendments to the Credit Agreement. The Credit Agreement is,
effective the date hereof, and subject to the satisfaction of the conditions
precedent set forth in Section 3 hereof, hereby amended as follows:

                  (a) Section 2.2.1 Borrowing Base, of the Credit Agreement is
         hereby amended by deleting the section in its entirety and substituting
         the following:

                           "2.2.1 Effective October 14, 2004 to the date as of
                  which the Borrowing Base is next redetermined pursuant to
                  Section 2.2.2, the Borrowing Base shall be $38,000,000.00."

                  (b) A new Section 5.30 SJM Acquisition Agreement is hereby
         added to the Credit Agreement as follows:

                           "5.30 SJM Acquisition Agreement. The transactions
                  contemplated by the SJM Acquisition Agreement have or will
                  close as contemplated therein and neither Borrower, Guarantor,
                  nor any other party thereto has waived nor shall waive, or in
                  any way amend, without the prior consent of the Agent, the
                  terms of the SJM
<PAGE>
                  Acquisition Agreement, including any condition to the
                  obligations to close as so set forth therein. A true, correct
                  and complete copy of the SJM Acquisition Agreement (including
                  all exhibits, schedules and amendments thereto) has been
                  delivered to Agent and a true, correct and complete copy of
                  each document and instrument delivered at closing of the
                  Acquisition will be delivered to the Agent on the closing date
                  thereof. Neither Borrower, Guarantor, nor any other party
                  thereto is in default under the SJM Acquisition Agreement or
                  any document or instrument to be delivered in connection with
                  the SJM Acquisition Agreement executed in connection
                  therewith. The representations and warranties made by each of
                  the parties in the SJM Acquisition Agreement and any other
                  document or instrument will be true and correct (except for
                  changes expressly provided for therein or herein) on and as of
                  the closing date as though made on and as of such date."

         3. Conditions Precedent to Effectiveness of Amendment. This Amendment
shall become effective when, and only when, the Agent and Lenders shall have
received counterparts of this Amendment executed by Borrower and Guarantor and
Section 2 hereof shall become effective when, and only when, the Agent and
Lenders shall have additionally received all of the following documents, each
document (unless otherwise indicated) being dated the date of receipt thereof by
Lender (which date shall be the same for all such documents), in form and
substance satisfactory to the Lender:

                  (a) Counterparts of this Amendment duly executed by Borrower,
         Guarantor and Lenders;

                  (b) A copy of the resolutions approving this Amendment, and
         authorizing the transactions contemplated herein or therein duly
         adopted by the Managers of Borrower, accompanied by a certificate of
         the duly authorized Secretary of Borrower, that such copy is a true and
         correct copy of the resolutions duly adopted by the Managers of
         Borrower, and that such resolutions constitute all the resolutions
         adopted with respect to such transactions, and have not been amended,
         modified or revoked in any respect and are in full force and effect as
         of the date hereof;

                  (c) A copy of the resolutions approving this Amendment, and
         authorizing the transactions contemplated herein or therein duly
         adopted by the Board of Directors of Guarantor, accompanied by a
         certificate of the duly authorized Secretary of Guarantor, that such
         copy is a true and correct copy of the resolutions duly adopted by the
         Board of Directors of Guarantor, and that such resolutions constitute
         all the resolutions adopted with respect to such transactions, and have
         not been amended, modified or revoked in any respect and are in full
         force and effect as of the date hereof;

                  (d) Mortgages, executed by the Borrower, in a form
         satisfactory to the Agent, the Lenders and their counsel with respect
         to the Properties purchased by Borrower pursuant to the SJM Acquisition
         Agreement and described therein, which are part of the Collateral, and
         such other agreements, documents and instruments as may be necessary
         and appropriate, in form and substance satisfactory to the Agent and
         the Lenders, executed and delivered by the
<PAGE>

         Borrower, as mortgagor or assignor, in favor of the Agent, ratably for
         the benefit of the Lenders, in order to create and perfect the Lender
         Liens in and to all Collateral described therein;

                  (e) The Pledge Agreement, executed by Borrower, in a form
         satisfactory to the Agent, the Lenders and their counsel, with respect
         to the shares of Pittrans along with one or more certificates
         evidencing such shares having attached thereto duly executed stock
         powers and any financing statements related thereto.

                  (f) A Guaranty, executed by Pittrans, in a form satisfactory
         to the Agent, the Lenders, and their counsel;

                  (g) There shall not have been, in the sole judgment of
         Lenders, any material adverse change in the financial condition,
         business or operations of Borrower or Guarantor;

                  (h) Payment of a fees as set forth in the Fee Letter executed
         by Borrower in connection with this Amendment;

                  (i) Payment by Borrower of the fees and expenses of counsel to
         Lenders in connection with the preparation and negotiation of this
         Amendment and all documents and instruments contemplated hereby; and

                  (j) The execution and delivery of such additional documents
         and instruments which the Agent and its counsel may deem necessary to
         effectuate this Amendment or any document executed and delivered to
         Lenders in connection herewith or therewith.

         4. Representations and Warranties of Borrower. Borrower represents and
warrants as follows:

                  (a) Borrower and Guarantor are each duly authorized and
         empowered to execute, deliver and perform this Amendment and all other
         instruments referred to or mentioned herein to which it is a party, and
         all action on its part requisite for the due execution, delivery and
         the performance of this Amendment has been duly and effectively taken.
         This Amendment, when executed and delivered, will constitute valid and
         binding obligations of Borrower and Guarantor, as the case may be,
         enforceable against such party in accordance with its terms. This
         Amendment does not violate any provisions of the Articles of
         Organization or limited liability agreement of Borrower, the
         Certificate of Incorporation or By-Laws of Guarantor, or any contract,
         agreement, law or regulation to which either Borrower or Guarantor is
         subject, and does not require the consent or approval of any regulatory
         authority or governmental body of the United States or any state;

                  (b) After giving affect to this Amendment, the representations
         and warranties contained in the Credit Agreement, as amended hereby,
         and any other Loan Documents executed in connection herewith or
         therewith are true, correct and complete on and as of the date hereof
         as though made on and as of the date hereof;
<PAGE>
                  (c) After giving affect to this Amendment, no event has
         occurred and is continuing which constitutes a Default or Unmatured
         Default; and

                  (d) When duly executed and delivered, each of this Amendment
         and the Credit Agreement will be legal and binding obligations of
         Borrower, enforceable in accordance with their respective terms, except
         as limited by bankruptcy, insolvency or similar laws of general
         application relating to the enforcement of creditors' rights and by
         equitable principles of general application.

         5. Reference to and Effect on the Loan Documents.

                  (a) Upon the effectiveness of Section 2 hereof, on and after
         the date hereof, each reference in the Credit Agreement to "this
         Agreement", "hereunder", "hereof", "herein" or words of like import,
         and each reference in the Loan Documents shall mean and be a reference
         to the Credit Agreement as amended hereby.

                  (b) Except as specifically amended above, the Credit Agreement
         and the Note(s), and all other instruments securing or guaranteeing
         Borrower's obligations to Lenders, including the Collateral Documents,
         as amended (collectively, the "Security Instruments") shall remain in
         full force and effect and are hereby ratified and confirmed. Without
         limiting the generality of the foregoing, the Security Instruments and
         all collateral described therein do and shall continue to secure the
         payment of all obligations of Borrower and Guarantor under the Credit
         Agreement and the Note(s), as amended hereby, and under the other
         Security Instruments.

                  (c) The execution, delivery and effectiveness of this
         Amendment shall not, except as expressly provided herein, operate as a
         waiver of any right, power or remedy of Lender under any of the
         Security Instruments, nor constitute a waiver of any provision of any
         of the Security Instruments.

         6. Waiver. As additional consideration for the execution, delivery and
performance of this Amendment by the parties hereto and to induce Lenders to
enter into this Amendment, Borrower and Guarantor each warrants and represents
to Lenders that no facts, events, statuses or conditions exist or have existed
which, either now or with the passage of time or giving of notice, or both,
constitute or will constitute a basis for any claim or cause of action against
Lenders or any defense to (i) the payment of any obligations and indebtedness
under the Note(s) and/or the Security Instruments, or (ii) the performance of
any of its obligations with respect to the Note(s) and/or the Security
Instruments, and in the event any such facts, events, statuses or conditions
exist or have existed, Borrower unconditionally and irrevocably waives any and
all claims and causes of action against Lenders and any defenses to its payment
and performance obligations in respect to the Note(s) and the Security
Instruments.

         7. Costs and Expenses. Borrower agrees to pay on demand all costs and
expenses of Lenders in connection with the preparation, reproduction, execution
and delivery of this Amendment and the other instruments and documents to be
delivered hereunder, including the reasonable fees and out-of-pocket expenses of
counsel for Lenders. In addition, Borrower shall pay any and all fees
<PAGE>

payable or determined to be payable in connection with the execution and
delivery, filing or recording of this Amendment and the other instruments and
documents to be delivered hereunder, and agrees to save Lenders harmless from
and against any and all liabilities with respect to or resulting from any delay
in paying or omitting to pay such fees.

         8. Execution in Counterparts. This Amendment may be executed in any
number of counterparts and by different parties hereto in separate counterparts,
each of which when so executed and delivered shall be deemed to be an original
and all of which taken together shall constitute but one and the same
instrument.

         9. Governing Law. This Amendment shall be governed by and construed in
accordance with the laws of the State of Texas.

         10. Final Agreement. THIS WRITTEN AMENDMENT REPRESENTS THE FINAL
AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR,
CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES. THERE ARE NO
UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this instrument to
be duly executed in multiple counterparts, each of which is an original
instrument for all purposes, all as of the day and year first above written.

                                      "BORROWER"

                                       PETROQUEST ENERGY, L.L.C.

                                       By: /s/ Michael O. Aldridge
                                          --------------------------------------
                                               Michael O. Aldridge,
                                               Chief Financial Officer

                                       "GUARANTOR"

                                       PETROQUEST ENERGY, INC.

                                       By: /s/ Michael O. Aldridge
                                          --------------------------------------
                                               Michael O. Aldridge,
                                               Chief Financial Officer

<PAGE>

                                       "LENDERS"

                                       BANK ONE, NA,
                                       As the Agent, a Lender and LC Issuer

                                       By: /s/ Charles Kingswell-Smith
                                          --------------------------------------
                                               Charles Kingswell-Smith
                                               Managing Director

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