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                                                                   EXHIBIT 10.32



                                U.S. $150,000,000

                             GIANT INDUSTRIES, INC.

                      9% Senior Subordinated Notes due 2007

                               PURCHASE AGREEMENT


                                                                 August 21, 1997



UBS Securities LLC
Donaldson, Lufkin & Jenrette Securities Corporation
BancAmerica Securities, Inc.
Jefferies & Company, Inc.
c/o UBS Securities LLC
299 Park Avenue
New York, NY 10171-0026

Dear Sirs:

            Giant Industries, Inc., a Delaware corporation (the "Company"),
proposes, subject to the terms and conditions stated herein, to issue and sell
to UBS Securities LLC ("UBS"), Donaldson, Lufkin & Jenrette Securities
Corporation, BancAmerica Securities, Inc. and Jefferies & Company, Inc. (the
"Purchasers") U.S. $150,000,000 principal amount of 9% Senior Subordinated Notes
due 2007 (the "Notes"). The Notes are to be issued pursuant to an Indenture
dated as of August 26, 1997 (the "Indenture"), among the Company, each of the
Company's subsidiaries, which are listed on the signature pages hereto, as
guarantors of the Notes (the "Subsidiary Guarantors" and, together with the
Company the "Sellers"), and The Bank of New York, as indenture trustee (the
"Trustee"). This is to confirm the agreement between the Sellers and the
Purchasers concerning the issue and purchase of the Notes.

            Holders (including subsequent transferees) of the Notes will have
the registration rights set forth in the Registration Rights Agreement of even
date herewith (the "Registration Rights Agreement") between the Sellers and the
Purchasers. Pursuant to the Registration Rights Agreement, the Company has
agreed to file with the Securities and Exchange Commission (the "Commission")
(i) a registration statement under the Securities Act of 1933, as amended (the
"Securities Act") registering the offering of senior subordinated notes (the
"Exchange Notes") identical in all material respects to the Notes (except that
the Exchange Notes will not contain terms with respect to transfer restrictions)
to be offered in exchange for the Notes and (ii) under 
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certain circumstances, a shelf registration statement pursuant to Rule 415 under
the Securities Act.

            It is understood that (a) the Purchasers will offer and resell some
or all of the Notes in the United States to "qualified institutional buyers" in
reliance on Rule 144A under the Securities Act, and to institutional "accredited
investors", within the meaning of Rule 501(a)(1), (2), (3) or (7) under the
Securities Act, and (b) the Purchasers or affiliates thereof may resell a
portion of the Notes outside the United States to certain persons in reliance on
Regulation S under the Securities Act.

            1.    Representations and Warranties.  The Company and each
Subsidiary Guarantor jointly and severally represent, warrant and agree that:

            (a) The Company has prepared a preliminary confidential offering
      memorandum dated August 8, 1997 and a confidential offering memorandum
      dated the date hereof relating to the Notes. Copies of such preliminary
      confidential offering memorandum and such confidential offering memorandum
      have been delivered by the Company to the Purchasers. As used in this
      Agreement, "Offering Memorandum" means such preliminary confidential
      offering memorandum and such confidential offering memorandum as amended
      or supplemented. The preliminary confidential offering memorandum, as of
      its date, and the Offering Memorandum does not, as of the date hereof, and
      will not, as of the date of any amendment or supplement thereto or as of
      the Delivery Date (as defined in Paragraph 4), contain any untrue
      statement of a material fact or omit to state any material fact necessary
      in order to make the statements therein, in the light of the circumstances
      under which they were made, not misleading; provided that the Sellers make
      no representation or warranty as to information contained in the Offering
      Memorandum in reliance upon and in conformity with written information
      furnished to the Sellers by or on behalf of any Purchaser expressly for
      inclusion therein and identified in Section 7(g) hereof.

            (b) The Company has been duly incorporated and is validly existing
      as a corporation in good standing under the laws of the State of Delaware,
      with full corporate power and authority to own, lease and operate its
      properties and conduct its business as presently conducted and as
      described in the Offering Memorandum; and the Company is duly qualified as
      a foreign corporation to transact business and is in good standing in each
      jurisdiction in which such qualification is required, whether by reason of
      the ownership or leasing of property or the conduct of business, except
      where the failure to so qualify would not have a material adverse effect
      on the assets, liabilities, results of operations, condition (financial or
      otherwise), earnings, business affairs or prospects of the Company and its
      subsidiaries, taken as a whole (a "Material Adverse Effect").

            (c) The Subsidiary Guarantors are the only direct or indirect
      subsidiaries, whether wholly or partially owned, of the Company. Each of
      the Subsidiary Guarantors 
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      has been duly incorporated and is validly existing as a corporation in
      good standing under the laws of the jurisdiction of its incorporation, has
      corporate power and authority to own, lease and operate its properties and
      conduct its business as presently conducted and as described in the
      Offering Memorandum and is duly qualified as a foreign corporation to
      transact business and is in good standing in each jurisdiction in which
      such qualification is required, whether by reason of the ownership or
      leasing of property or the conduct of business, except where the failure
      to so qualify would not have a material adverse effect on the assets,
      liabilities, results of operations, condition (financial or otherwise),
      earnings, business affairs or prospects of such Subsidiary Guarantor. All
      the issued and outstanding capital stock of each such Subsidiary Guarantor
      is owned by the Company or another Subsidiary Guarantor, free and clear of
      any security interest, mortgage, pledge, lien, charge or other encumbrance
      (each, a "Lien").

            (d) The execution, delivery and performance by the Sellers of this
      Agreement, the Registration Rights Agreement, the Indenture, the Notes and
      the guarantees of the Notes by the Subsidiary Guarantors (the
      "Guarantees") and the consummation of the transactions contemplated herein
      and therein have been duly authorized by all necessary corporate action
      and will not conflict with or constitute a breach of, or a default or the
      loss of any material benefit under, or the termination of, or result in
      the creation or imposition of any Lien upon any property or assets of any
      Seller pursuant to any contract, indenture, mortgage, loan agreement,
      note, lease, license or other instrument (each a "Contract") to which any
      Seller is a party or by which any of them may be bound or to which any of
      the property or assets of any of them is subject, nor will such action
      result in any violation of the provisions of the charter or bylaws of any
      Seller or, subject to compliance by the Purchasers with Paragraph 11, any
      applicable law, administrative regulation or administrative or court order
      or decree applicable to any Seller. Except as contemplated by the
      Registration Rights Agreement or as may be required under the Securities
      Act or the Trust Indenture Act, no consent, approval, authorization or
      order of, or notice to or filing with, any United States Federal or state
      governmental agency or body or any court of the United States or of any
      state thereof is required of the Sellers in connection with the
      transactions contemplated by this Agreement.

            (e) This Agreement has been duly and validly executed and delivered
      by each Seller and constitutes a legal, valid and binding agreement of
      each Seller, enforceable against each Seller in accordance with its terms,
      except to the extent that the enforceability thereof may be limited by (i)
      bankruptcy, insolvency, reorganization, moratorium, fraudulent transfer or
      other similar laws now or hereafter in effect relating to creditors'
      rights generally and (ii) general principles of equity (regardless of
      whether such enforcement is considered in a proceeding in equity or at
      law) and an implied covenant of good faith and fair dealing. The Indenture
      has been duly authorized and, when executed and delivered by the Sellers
      (assuming due execution and delivery by the Trustee), will constitute a
      legal, valid and binding agreement of each Seller, enforceable against
      each 



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      Seller, in accordance with its terms, except to the extent that the
      enforceability thereof may be limited by (A) bankruptcy, insolvency,
      reorganization, moratorium, fraudulent transfer or other similar laws
      relating to creditors' rights generally and (B) general principles of
      equity (regardless of whether such enforcement is considered in a
      proceeding in equity or at law) and an implied covenant of good faith and
      fair dealing. The Registration Rights Agreement has been duly and validly
      executed and delivered by each Seller and constitutes a legal, valid and
      binding agreement of each Seller, enforceable against each Seller in
      accordance with its terms, except to the extent that the enforceability
      thereof may be limited by (i) bankruptcy, insolvency, reorganization,
      moratorium, fraudulent transfer or other similar laws now or hereafter in
      effect relating to creditors' rights generally and (ii) general principles
      of equity (regardless of whether such enforcement is considered in a
      proceeding in equity or at law) and an implied covenant of good faith and
      fair dealing.

            (f) The Notes have been duly authorized for issuance and sale as
      contemplated by this Agreement, the Indenture and the Offering Memorandum
      and, on the Delivery Date, will have been duly executed by the Company
      and, when issued, authenticated and delivered in the manner provided for
      in this Agreement and the Indenture against payment of the consideration
      therefor specified in the Offering Memorandum, the Notes, which will be
      substantially in the form heretofore delivered to you, will constitute
      legal, valid and binding obligations of the Company enforceable against
      the Company in accordance with their terms, and will be entitled to the
      benefits provided by the Indenture, except to the extent that the
      enforceability thereof may be limited by (i) bankruptcy, insolvency,
      reorganization, moratorium, fraudulent transfer or other similar laws
      relating to creditors' rights generally and (ii) general principles of
      equity (regardless of whether such enforcement is considered in a
      proceeding in equity or at law) and an implied covenant of good faith and
      fair dealing; and the Notes will constitute senior subordinated debt
      obligations of the Company. The Guarantees have been duly authorized for
      issuance as contemplated by this Agreement, the Indenture and the Offering
      Memorandum and, on the Delivery Date, will have been duly executed by the
      Subsidiary Guarantors and, when issued and delivered in the manner
      provided for in this Agreement and the Indenture, will constitute legal,
      valid and binding obligations of the Subsidiary Guarantors enforceable
      against the respective Subsidiary Guarantors in accordance with their
      terms, except to the extent that the enforceability thereof may be limited
      by (i) bankruptcy, insolvency, reorganization, moratorium, fraudulent
      transfer or other similar laws relating to creditors' rights generally and
      (ii) general principles of equity (regardless of whether such enforcement
      is considered in a proceeding in equity or at law) and an implied covenant
      of good faith and fair dealing; and the Guarantees will constitute senior
      subordinated obligations of the Subsidiary Guarantors.

            (g) No Seller is in violation of its charter or bylaws and no Seller
      is in default in the performance or observance of any obligation,
      agreement, covenant or condition 



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      contained in any Contract or any applicable law, administrative regulation
      or administrative or court order or decree, which violation or default
      would, singly or in the aggregate, have a Material Adverse Effect.

            (h) The Sellers possess such certificates, authorizations or permits
      issued by the appropriate regulatory or other governmental agencies or
      bodies as are necessary to conduct the business as now conducted by the
      Company and as described in the Offering Memorandum, except where the
      failure to possess any such certificate, authorization or permit would
      not, singly or in the aggregate, have a Material Adverse Effect; and
      neither the Company nor any Subsidiary Guarantor has received any notice
      of proceedings relating to the revocation or modification of any such
      certificate, authorization or permit which, singly or in the aggregate, if
      the subject of an unfavorable decision, ruling or finding, would have a
      Material Adverse Effect.

            (i) To the best of the Company's knowledge, Deloitte & Touche LLP,
      the accountants who have audited and reported upon the financial
      statements and supporting schedules of the Company included in the
      Offering Memorandum, are independent public accountants with respect to
      the Company and its subsidiaries within the meaning of the Securities Act
      and the United States Securities Exchange Act of 1934, as amended (the
      "Exchange Act"), and the applicable rules and regulations promulgated
      thereunder (the "Rules and Regulations").

            (j) The financial statements of the Company and its consolidated
      subsidiaries included in the Offering Memorandum present fairly the
      consolidated financial position of the Company and its consolidated
      subsidiaries as of the dates indicated and the results of their operations
      for the periods specified; such financial statements have been prepared in
      conformity with generally accepted accounting principles applied on a
      consistent basis, except for footnotes to the unaudited financial
      statements and provided that the unaudited financial statements are
      subject to normal year-end adjustments.

            (k) Since the respective dates as of which information is given in
      the Offering Memorandum, and except as otherwise stated therein, (i) there
      has been no material adverse change in the assets, liabilities, results of
      operations, condition (financial or otherwise), earnings, business affairs
      or prospects of the Company and its subsidiaries, taken as a whole, (ii)
      there have been no transactions entered into by the Company that are
      material to the Company and (iii) except for regular quarterly dividends,
      there has been no dividend declared, paid or made by the Company on any
      class of its capital stock.

            (l) Subject to compliance by the Purchasers with Paragraph 11, no
      consent, approval, authorization, order or decree of any court or
      governmental agency or body is required in connection with the issuance
      and sale of the Notes or the consummation by the Sellers of any other
      transaction contemplated by this Agreement except as has been 




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      obtained and is in effect and except as may be required by the securities
      or Blue Sky laws of any state of the United States in connection with the
      sale of the Notes.

            (m) No registration of the Notes under the Securities Act and no
      qualification of an indenture under the United States Trust Indenture Act
      of 1939, as amended (the "Trust Indenture Act"), is required in connection
      with the offer and sale of the Notes in the manner contemplated by the
      Offering Memorandum and this Agreement (other than pursuant to the terms
      of the Registration Rights Agreement).

            (n) No strike, work stoppage or other similar labor dispute with the
      employees of any Seller exists or, to the knowledge of any Seller, is
      threatened, which would have a Material Adverse Effect.

            (o) There is no action, suit or proceeding before or by any court or
      governmental agency or body now pending, or, to the knowledge of any
      Seller, threatened against or affecting any Seller which is not disclosed
      in the Offering Memorandum, and which, if adversely determined, would
      result in a Material Adverse Effect or would prevent or hinder the
      consummation of all the transactions contemplated by this Agreement.

            (p) Except as set forth in the Offering Memorandum and except for
      matters that would not have a Material Adverse Effect, (i) neither the
      property nor the operations of any Seller are in violation of any
      environmental law or any order of any governmental authority; (ii) no
      Seller is in violation of or subject to any pending, or to any Seller's
      knowledge, threatened, action, suit, investigation, inquiry or proceeding
      by any governmental authority or to any remedial obligations under any
      environmental law; (iii) all notices, permits or similar authorizations,
      if any, required to be obtained or filed in connection with the property
      or business of the Sellers, including, without limitation, past or present
      emission, discharge, treatment, storage, disposal or release of a
      Hazardous Material (as defined below) into the environment, have been duly
      obtained or filed; (iv) the Company has taken or is taking all steps
      required by law to determine and has determined in connection with each
      such matter that no Hazardous Materials have been disposed of or otherwise
      released and there has been no threatened release of any Hazardous
      Material from, on or to any property of any Seller; and (v) no Seller has
      any present or contingent liability in connection with any release or
      threatened release of any Hazardous Material into the environment, whether
      on or off its property. The term "Hazardous Material" means any oil
      (including petroleum products, crude oil and any fraction thereof), solid
      waste, "hazardous substance" or "hazardous waste" (as defined in Section
      101(14) of the Comprehensive Environmental Response, Compensation and
      Liability Act, Section 1004(5) of the Resource Conservation and Recovery
      Act and any regulations promulgated thereunder), or other hazardous
      material that is regulated by a local, state or federal governmental
      authority charged with protection of the environment.




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            (q) Except as described in the Offering Memorandum, all tax returns
      required to be filed by any Seller in any jurisdiction or with any tribal
      authority have been filed, other than those filings being contested in
      good faith, and all material taxes, including withholding taxes, penalties
      and interest, assessments, fees and other charges due or claimed to be due
      from such entities have been paid, other than those being contested in
      good faith and for which adequate reserves have been provided or those
      currently payable without penalty or interest.

            (r) All the issued and outstanding shares of the capital stock of
      the Company have been duly authorized and validly issued and are fully
      paid and non-assessable.

            (s) The Notes, the Guarantees and the Indenture conform in all
      material respects to the respective statements relating thereto contained
      in the Offering Memorandum.

            (t) No holder of any security of the Company has the right to have
      any security owned by such holder registered under the Securities Act by
      reason of the issue or sale of the Notes.

            (u) Except as otherwise described in the Offering Memorandum,
      neither the Company nor any of its affiliates nor any person acting on
      behalf of the Company has, within the six months prior to the date of this
      Agreement, offered or sold (regardless of whether such offers or sales
      constitute a distribution within the meaning of Regulation M under the
      Exchange Act) any Notes, any securities of the same class and/or series as
      the Notes, or any immediately convertible into or exchangeable for Notes,
      nor will any such offers or sales be made without the prior written
      consent of UBS at any time prior to the date that is 90 days after the
      completion of the offering of the Notes contemplated hereby. The Company
      has not taken and will not take, directly or indirectly, any action
      prohibited by Regulation M. The Company has not entered into any
      contractual arrangement which provides for the distribution of the Notes
      other than this Agreement.

            (v) Neither the Company nor any of its affiliates nor any persons
      authorized to act on behalf of the Company or any such affiliates (other
      than the Purchasers or any person acting on their behalf as to whom the
      Sellers do not warrant or covenant) have engaged or will engage in any
      directed selling efforts (within the meaning of Regulation S) with respect
      to the Notes and the Company, each such affiliate and each person
      authorized by the Company to act on behalf of any of them has complied and
      will comply with any applicable offering restrictions requirement of
      Regulation S.

            (w) Neither the Company nor any of its affiliates nor any person
      authorized by the Company to act on behalf of the Company or any such
      affiliate has offered or sold, or 


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      will offer or sell, the Notes by means of any form of general solicitation
      or general advertising (within the meaning of Rule 502(c) of Regulation D
      under the Securities Act), including, but not limited to, (i) any
      advertisement, article, notice or other communication published in any
      newspaper, magazine or similar medium or broadcast over television or
      radio or (ii) any seminar or meeting whose attendees have been invited by
      any general solicitation or general advertising.

            (x) No securities of the same class (within the meaning of Rule
      144A(d)(3) under the Securities Act) as the Notes are listed on any
      national securities exchange registered under Section 6 of the Exchange
      Act or quoted in a U.S. "automated inter-dealer quotation system" (as such
      term is used in Rule 144A(d)(3)).

            (y) The Company is not and will not as a result of the offer and
      sale of the Notes be (i) an "investment company" or a company "controlled"
      by an investment company within the meaning of the United States
      Investment Company Act of 1940, as amended, (ii) a "holding company" or a
      "subsidiary company" of a holding company or an "affiliate" thereof within
      the meaning of the United States Public Utility Holding Company Act of
      1935, as amended, or (iii) subject to regulation under the United States
      Federal Power Act or any federal or state statute or regulation limiting
      its ability to incur indebtedness for borrowed money.

            (z) The Company is not actively considering any plan or transaction
      that, if consummated, would result in any mandatory requirement to redeem,
      or make an offer to purchase, the Notes pursuant to the terms thereof.

            (aa) The Company is a reporting issuer (within the meaning of
      Regulation S under the Securities Act).

            2.    Purchase and Offering of the Notes. On the basis of the
representations and warranties contained in, and upon the terms and subject to
conditions of, this Agreement, the Company agrees to issue and sell to the
Purchasers and the Purchasers agree, severally and not jointly, to purchase and
pay for the respective principal amounts of Notes set forth opposite the name of
the several Purchasers in Schedule I hereto at a price equal to the issue price
of 100% of the principal amount of the Notes (the "Issue Price"). The sale of
the Notes to the Purchasers will be made without registration of the Notes under
the Securities Act, in reliance on the exemption therefrom provided by Section
4(2) of the Securities Act.

            3.    Commissions and Fees.  The Company agrees to pay to the
Purchasers a commission of 2% of the principal amount of the Notes in
consideration of the agreement by the Purchasers to purchase the Notes.  The
Purchasers shall be entitled to deduct such commissions from the purchase
price of the Notes.




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            4.    Delivery and Payment. Payment of the purchase price for the 
Notes shall be made by the Purchasers to the Company or its order in U.S.
dollars in same-day funds by 11:00 A.M., New York City time, on August 26, 1997
or at such later date and time as may be determined by agreement between the
Company and UBS. This date and time are sometimes referred to as the "Delivery
Date". Such payment shall be made against delivery of one or more certificates
in global or definitive form for the Notes in such denominations and registered
in such names as the Purchasers request upon notice to the Company at least two
business days prior to the Delivery Date.

            5.    Covenants.  The Company agrees as follows:

            (a) The Company shall furnish promptly to each of the Purchasers a
      copy of the Offering Memorandum and each amendment and supplement thereto
      and shall deliver promptly to the Purchasers such number of copies of the
      Offering Memorandum and each amendment and supplement thereto as the
      Purchasers may reasonably request.

            (b) If at any time prior to the completion, as determined by the
      Purchasers, of the distribution of the Notes, any event occurs as a result
      of which the Offering Memorandum would contain any untrue statement of a
      material fact or omit to state a material fact necessary in order to make
      the statements made therein, in the light of the circumstances under which
      they were made, not misleading, the Company will promptly so notify the
      Purchasers and will prepare and furnish to the Purchasers, subject to
      Paragraph 5(c), copies of such amendments or supplements to the Offering
      Memorandum as may be necessary so that the statements in the Offering
      Memorandum as so amended or supplemented will not contain any such untrue
      statement or omit to state any such material fact or be misleading and so
      that the Offering Memorandum, as so amended or supplemented, will comply
      with applicable law.

            (c) Within a reasonable amount of time prior to any proposed
      publication of any amendment or supplement to the Offering Memorandum, the
      Company shall furnish a copy thereof to the Purchasers and shall not
      publish or use any such amendment or supplement to which the Purchasers or
      their counsel shall reasonably object.

            (d) The Company shall comply with the terms of the Indenture and the
      Offering Memorandum and shall promptly notify the Purchasers if the
      Company discovers that any of its representations contained in this
      Agreement is not, at any time prior to the completion of the distribution
      of the Notes, true and correct, or if the Company has at any such time
      breached any of its obligations hereunder.

            (e) If, at any time prior to two years after the Delivery Date, the
      Company is neither subject to Section 13 or 15(d) of the Exchange Act nor
      exempt from reporting pursuant to Rule 12g3-2(b) under the Exchange Act,
      the Company shall furnish, as soon as available, to the Purchasers, and,
      upon request of a holder of Notes, to such holder and 




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      any prospective purchaser designated by such holder, copies of the
      information required to be delivered to holders and prospective purchasers
      of any Notes which constitute "restricted securities" under Rule 144 under
      the Securities Act in order to permit compliance with Rule 144A under the
      Securities Act.

            (f) Neither the Company nor any of its affiliates will take,
      directly or indirectly, any action designed to or which constitutes or
      which might reasonably be expected to cause or result in stabilization or
      manipulation of the price of the Notes at any time prior to the Purchasers
      notifying the Company of the completion of the distribution of the Notes.

            (g) The Company will endeavor to qualify the Notes for offer and
      sale under the securities or Blue Sky laws of such jurisdictions as the
      Purchasers shall reasonably request and to continue such qualification in
      effect so long as reasonably required for resale by the Purchasers of the
      Notes; provided that the Company shall not be required to (i) qualify
      generally to do business in any jurisdiction where it is not then so
      qualified or (ii) take any action that would subject it to general service
      of process or to taxation in any jurisdiction where it is not then so
      subject.

            (h) So long as the Notes are outstanding, the Company will promptly
      furnish to the Purchasers copies of all reports or other communications
      (financial or other) furnished by the Company or the Trustee to holders of
      Notes, and copies of filings including financial statements furnished to
      or filed with the Commission or any national securities exchange by the
      Company.

            (i) The Company will take all action that is appropriate or
      necessary to assure that its offerings of other securities will not be
      integrated, for purposes of the registration requirements of the
      Securities Act, with the offerings contemplated hereby.

            (j) If requested by the Purchasers, the Company shall use its best
      efforts to permit the Notes to be designated PORTAL securities in
      accordance with the rules and regulations adopted by the National
      Association of Securities Dealers, Inc. (the "NASD") relating to the
      trading in the PORTAL Market; unless so requested by the Purchasers, the
      Company will not take any action to permit the Notes to be designated
      PORTAL securities without the Purchasers' consent, which shall not be
      unreasonably withheld.

            (k) The Company shall use its best efforts to assist the Purchasers
      in arranging to cause the Notes to be eligible for settlement through the
      facilities of The Depository Trust Company ("DTC").



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            (l) The Company shall, if requested by the Purchasers, use its best
      efforts to cause the Notes to be eligible for settlement through the
      facilities of Cedel Bank, societe anonyme ("Cedel"), and the Euroclear
      System ("Euroclear").

            6. Costs and Expenses. The Company agrees (whether or not the
transactions contemplated hereby are consummated) to pay all costs and expenses
(including any taxes) incident to the authorization, issuance, sale and delivery
of the Notes or relating to the preparation of this Agreement, the Registration
Rights Agreement, the Indenture and the Offering Memorandum, including, without
limitation: (i) all costs, expenses and taxes in connection with the
preparation, issue, exchange and delivery of the Notes, including any stamp or
similar issue tax and any related interest or penalties incident to the
authorization and issue of the Notes, and the sale and delivery of the Notes to
the Purchasers; (ii) all fees and expenses of counsel for the Company and other
advisors engaged by the Company; (iii) all fees and expenses of the Trustee and
any registrar and paying and transfer agents; (iv) all fees and expenses
incurred in connection with any rating of the Notes; (v) all fees of DTC, Cedel
and Euroclear; (vi) expenses in connection with the qualification of the Notes
for sale as contemplated by Paragraph 5(g), including but not limited to all
filing fees (but excluding fees and expenses of counsel for the Purchasers); and
(vii) all listing fees and expenses in connection with any listing of the Notes
on any securities exchange or The NASDAQ Stock Market, Inc. The Purchasers will
pay for all fees and expenses of counsel for the Purchasers and other advisors
engaged by the Purchasers incurred in connection with the offering of the Notes,
expenses incurred to print the Offering Memorandum and the travel and other
out-of-pocket expenses of the Purchasers and the Company incurred in connection
with "road show" presentations; provided that, in the event this Agreement is
terminated pursuant to Paragraph 10(i), the Company will pay all such fees and
expenses.

            7.    Indemnification.

            (a) The Sellers, jointly and severally, shall indemnify and hold
      harmless each Purchaser and its affiliates and each person, if any, who
      controls any Purchaser or its affiliates within the meaning of Section 15
      of the Securities Act or Section 20 of the Exchange Act and each director,
      officer, employee or agent of any Purchaser or its affiliates (each a
      "Purchaser Indemnified Party"), from and against any loss, claim, damage
      or liability, joint or several, and any action in respect thereof, to
      which any Purchaser Indemnified Party may become subject, insofar as such
      loss, claim, damage, liability or action (i) arises out of, or is based
      upon, or relates to any untrue statement or alleged untrue statement of a
      material fact contained in the Offering Memorandum, or which arises out
      of, or is based upon, the omission or alleged omission to state in the
      Offering Memorandum a material fact necessary to make the statements
      therein, in the light of the circumstances under which they were made, not
      misleading or (ii) arises out of, or is based upon, or relates to any
      breach of a representation, warranty or agreement of the Sellers set forth
      herein, and shall promptly reimburse each Purchaser Indemnified Party for
      any legal and other expenses reasonably incurred, as such legal and other




                                      -11-
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      expenses are incurred, by such Purchaser Indemnified Party in
      investigating or defending or preparing to defend against any such loss,
      claim, damage, liability or action; provided that the Sellers shall not be
      liable in any such case to the extent that any such loss, claim, damage,
      liability or action arises out of, or is based upon, or relates to any
      untrue statement or alleged untrue statement or omission or alleged
      omission made in the Offering Memorandum in reliance upon and in
      conformity with written information furnished to the Company by or on
      behalf of any Purchaser expressly for inclusion therein and identified in
      Section 7(g) hereof. The foregoing indemnity agreement is in addition to
      any liability which the Sellers may otherwise have to any Purchaser
      Indemnified Party.

            (b) Each Purchaser shall severally and not jointly indemnify and
      hold harmless the Company and its affiliates, any person who controls the
      Company or its affiliates within the meaning of Section 15 of the
      Securities Act or Section 20 of the Exchange Act, and each director,
      officer, employee and agent of the Company or its affiliates (each a
      "Company Indemnified Party"), from and against any loss, claim, damage or
      liability, joint or several, and any action in respect thereof, to which
      any Company Indemnified Party may become subject, insofar as such loss,
      claim, damage, liability or action (i) arises out of, or is based upon, or
      relates to any untrue statement or alleged untrue statement of a material
      fact contained in the Offering Memorandum, or which arises out of, or is
      based upon, or relates to the omission or alleged omission to state
      therein a material fact necessary in order to make the statements therein,
      in the light of the circumstances under which they were made, not
      misleading, but in each case only to the extent that the untrue statement
      or alleged untrue statement or omission or alleged omission was made in
      reliance upon and in conformity with written information furnished to the
      Company by or on behalf of any Purchaser expressly for inclusion therein
      and identified in Section 7(g) hereof, or (ii) arises out of, or is based
      upon, or relates to any breach of a representation, warranty or agreement
      of such Purchaser set forth herein, and shall promptly reimburse such
      Company Indemnified Party for any legal and other expenses reasonably
      incurred by such Company Indemnified Party in investigating or defending
      or preparing to defend against any such loss, claim, damage, liability or
      action. The foregoing indemnity agreement is in addition to any liability
      which a Purchaser may otherwise have to any such Company Indemnified
      Party.

            (c) Promptly after receipt by an indemnified party under this
      Paragraph 7 of notice of any claim or the commencement of any action, the
      indemnified party shall, if a claim in respect thereof is to be made
      against the indemnifying party under this Paragraph 7, notify the
      indemnifying party in writing of the claim or the commencement of the
      action; provided, however, that the failure to notify the indemnifying
      party shall not relieve it from any liability which it may have under this
      Paragraph 7 except to the extent it has been materially prejudiced by such
      failure and provided, further, that the failure to notify the indemnifying
      party shall not relieve it from any liability which it may 




                                      -12-
   13
      have to an indemnified party otherwise than under this Paragraph 7. If any
      such claim or action shall be brought against an indemnified party, and it
      shall notify the indemnifying party thereof, the indemnifying party shall
      be entitled to participate therein, and, to the extent that it wishes,
      jointly with any other similarly notified indemnifying party, to assume
      the defense thereof with counsel reasonably satisfactory to the
      indemnified party. After notice from the indemnifying party to the
      indemnified party of its election to assume the defense of such claim or
      action, the indemnifying party shall not be liable to the indemnified
      party under this Paragraph 7 for any legal or other expenses subsequently
      incurred by the indemnified party in connection with the defense thereof
      other than reasonable costs of investigation; provided, however, that any
      indemnified party shall have the right to employ separate counsel in any
      such action and to participate in the defense thereof but the fees and
      expenses of such counsel shall be at the expense of such indemnified party
      unless (i) the employment thereof has been specifically authorized by the
      indemnifying party in writing, (ii) such indemnified party shall have been
      advised by such counsel that there may be one or more legal defenses
      available to it which are different from or additional to those available
      to the indemnifying party and in the reasonable judgment of such counsel
      it is advisable for such indemnified party to employ separate counsel or
      (iii) the indemnifying party has failed to assume the defense of such
      action and employ counsel reasonably satisfactory to the indemnified
      party, in which case, if such indemnified party notifies the indemnifying
      party in writing that it elects to employ separate counsel at the expense
      of the indemnifying party, the indemnifying party shall not have the right
      to assume the defense of such action on behalf of such indemnified party,
      it being understood, however, that the indemnifying party shall not, in
      connection with any one such action or separate but substantially similar
      or related actions in the same jurisdiction arising out of the same
      general allegations or circumstances, be liable for the reasonable fees
      and expenses of more than one separate firm of attorneys (plus separate
      local counsel, if retained by the indemnified party) at any time for all
      such indemnified parties, which firm shall be designated in writing by
      UBS, if the indemnified parties under this Paragraph 7 are Purchaser
      Indemnified Parties, or by the Company, if the indemnified parties under
      this Paragraph 7 are Company Indemnified Parties.

            (d) No indemnifying party shall be liable for any settlement
      effected without its written consent (which consent shall not be
      unreasonably withheld), but if settled with such consent or if there be a
      final judgment for the plaintiff in any such action, the indemnifying
      party agrees to indemnify and hold harmless each indemnified party from
      and against any loss or liability by reason of such settlement or
      judgment. No indemnifying party shall, without the prior written consent
      of the indemnified party, effect any settlement of any pending or
      threatened proceeding in respect of which any indemnified party is a party
      and indemnity could have been sought hereunder by such indemnified party,
      unless such settlement is (i) for money damages only, (ii) includes an
      unconditional release of such indemnified party from all liability on any
      claims that are 



                                      -13-
   14
      the subject matter of such proceeding and (iii) does not include a
      statement as to or an admission of fault, culpability or a failure to act
      by or on behalf of any indemnified party.

            (e) If the indemnification provided for in this Paragraph 7 shall
      for any reason be unavailable to or insufficient to hold harmless any
      indemnified party under Paragraph 7(a) or 7(b) hereof in respect of any
      loss, claim, damage or liability, or any action in respect thereof,
      referred to therein, then each indemnifying party shall, in lieu of
      indemnifying such indemnified party, contribute to the aggregate amount
      paid or payable by such indemnified party as a result of such loss, claim,
      damage or liability, or action in respect thereof, (i) in such proportion
      as shall be appropriate to reflect the relative benefits received by the
      Sellers on the one hand and the Purchasers on the other from the offering
      of the Notes or (ii) if the allocation provided by clause (i) above is not
      permitted by applicable law, in such proportion as is appropriate to
      reflect not only the relative benefits referred to in clause (i) above but
      also the relative fault of the Sellers on the one hand and the Purchasers
      on the other with respect to the statements or omissions which resulted in
      such loss, claim, damage or liability, or action in respect thereof, as
      well as any other relevant equitable considerations. The relative benefits
      received by the Sellers on the one hand and the Purchasers on the other
      with respect to such offering shall be deemed to be in the same proportion
      as the total net proceeds from the offering of the Notes (obtained by
      subtracting accrued interest, if any, but before deducting expenses)
      received by the Sellers bear to the total commissions received by the
      Purchasers with respect to such offering. The relative fault shall be
      determined by reference to whether the untrue or alleged untrue statement
      of a material fact or omission or alleged omission to state a material
      fact relates to information supplied by the Sellers on the one hand or the
      Purchasers on the other, the intent of the parties and their relative
      knowledge, access to information and opportunity to correct or prevent
      such statement or omission. The amount paid or payable by an indemnified
      party as a result of the loss, claim, damage or liability, or action in
      respect thereof, referred to above in this Paragraph 7(e) shall be deemed
      to include, for purposes of this Paragraph 7(e), any legal or other
      expenses reasonably incurred by such indemnified party in connection with
      investigating or defending any such action or claim. No person guilty of
      fraudulent misrepresentation (within the meaning of Section 11(f) of the
      Securities Act) shall be entitled to contribution from any person who was
      not guilty of such fraudulent misrepresentation. For purposes of this
      Paragraph 7, each affiliate of a Purchaser and each person, if any, who
      controls any of the Purchasers within the meaning of Section 15 of the
      Securities Act or Section 20 of the Exchange Act shall have the same
      rights to contribution as each of the Purchasers, and each director,
      officer, employee or agent of the Company, each affiliate of the Company
      and each person, if any, who controls the Company or any affiliate of the
      Company within the meaning of Section 15 of the Securities Act or Section
      20 of the Exchange Act shall have the same rights to contribution as the
      Sellers.




                                      -14-
   15
            (f) The parties hereto agree that it would not be just or equitable
      if contribution pursuant to this Paragraph 7 were determined by pro rata
      allocation or by any other method of allocation that does not take account
      of the equitable considerations referred to in Paragraph 7(e). The
      remedies provided for in this Paragraph 7 are not exclusive and shall not
      limit any rights or remedies which may otherwise be available to any
      indemnified party at law or in equity.

            (g) The Company and the Purchasers agree that the only written
      information furnished to the Company by or on behalf of any Purchaser
      expressly for inclusion in the Offering Memorandum consists of (i) the
      last paragraph on the cover page, (ii) the fourth full paragraph on the
      page preceding the Offering Memorandum Summary, and (iii) the third,
      fourth, fifth, sixth, seventh and tenth paragraphs under the caption "Plan
      of Distribution."

            (h) The Sellers, jointly and severally, agree to indemnify each
      Purchaser Indemnified Party, and each Purchaser, severally and not
      jointly, agrees to indemnify each Company Indemnified Party, as a result
      of any judgment being rendered in connection with the Indenture, the Notes
      or this Agreement or the Offering Memorandum for which indemnification or
      contribution is provided pursuant to this Paragraph 7 and such judgment or
      order being paid in a currency (the "Judgment Currency") other than United
      States dollars, as a result of any variation as between (i) the rate of
      exchange at which United States dollars are converted into the Judgment
      Currency for the purpose of such judgment or order and (ii) the spot rate
      of exchange in New York City at which the indemnified party on the date of
      payment of such judgment or order is able to purchase United States
      dollars with the amount of the Judgment Currency actually received by the
      indemnified party. The foregoing indemnity shall constitute a separate and
      independent obligation of the Sellers and the Purchasers and shall
      continue in full force and effect notwithstanding any such judgment or
      order as aforesaid. The term "spot rate of exchange" shall include any
      premiums and costs of exchange payable in connection with the purchase of,
      or conversion into, United States dollars.

            8. Conditions to Obligation of the Purchasers. The obligations of
the several Purchasers to purchase the Notes are subject to the accuracy, when
made and on the Delivery Date, of the representations and warranties of the
Sellers contained herein, to the performance by the Sellers of their respective
obligations hereunder to be performed at or prior to the Delivery Date and to
each of the following additional conditions:

            (a) The Purchasers shall not have disclosed to the Company on or
      prior to the Delivery Date that the Offering Memorandum contains an untrue
      statement of a fact which, in the reasonable opinion of the Purchasers, is
      material or omits to state a fact which, in the reasonable opinion of the
      Purchasers, is material and is necessary in order to make the statements
      therein, in the light of the circumstances under which they were 




                                      -15-
   16
      made, not misleading; the Company shall not have prepared and distributed
      any amendment or supplement to the Offering Memorandum either without
      prior review by, or over the reasonable objection of, the Purchasers; and
      no change shall have occurred in Rule 144A or Regulation S under the
      Securities Act which in the reasonable judgment of the Purchasers makes it
      impracticable or inadvisable to proceed with the purchase, sale and
      delivery of the Notes on the terms and in the manner contemplated in the
      Offering Memorandum.

            (b) All corporate proceedings and other legal matters incident to
      the authorization, form and validity of this Agreement, the Registration
      Rights Agreement, the Indenture, the Notes, the Offering Memorandum and
      all other legal matters relating to this Agreement and the transactions
      contemplated hereby and thereby shall be reasonably satisfactory in all
      respects to the Purchasers and their counsel, and the Company shall have
      furnished to the Purchasers all documents and information that they may
      reasonably request to enable them to pass upon such matters.

            (c) The Company shall have delivered to the Purchasers a certified
      copy of the resolutions of the Board of Directors (or any authorized
      committee thereof, together with the resolutions of the Board of Directors
      establishing such committee) of the Company and each of the Subsidiary
      Guarantors approving the creation and issue of the Notes and the
      Guarantees, respectively, on the terms and conditions of the Indenture and
      this Agreement and approving the terms hereof and authorizing the
      execution and delivery of this Agreement, the Registration Rights
      Agreement, the Indenture, the Notes and all other documents relevant to
      the issue of the Notes by the Company.

            (d) The Company shall have furnished to the Purchasers the opinion
      or opinions of Fennemore Craig, P.C., United States counsel to the
      Company, addressed to the Purchasers and dated the Delivery Date to the
      effect that:

                  (i) The Indenture has been duly authorized, executed and
            delivered by the Company and the Subsidiary Guarantors and (assuming
            the due authorization, execution and delivery thereof by the
            Trustee) constitutes the legal, valid and binding agreement of the
            Company and each Subsidiary Guarantor, enforceable against the
            Company and each Subsidiary Guarantor in accordance with its terms,
            except to the extent that the enforceability thereof may be limited
            by (A) bankruptcy, insolvency, reorganization, moratorium,
            fraudulent transfer or similar laws relating to creditors' rights
            generally, and (B) general principles of equity (regardless of
            whether such enforcement is considered in a proceeding in equity or
            at law) and an implied covenant of good faith and fair dealing.

                  (ii) This Agreement has been duly authorized, executed and
            delivered by the Company and the Subsidiary Guarantors.




                                      -16-
   17
                  (iii) The Registration Rights Agreement has been duly
            authorized, executed and delivered by the Company and the Subsidiary
            Guarantors and constitutes the legal, valid and binding agreement of
            the Company and each Subsidiary Guarantor, enforceable against the
            Company and each Subsidiary Guarantor in accordance with its terms,
            except to the extent that the enforceability thereof may be limited
            by (A) bankruptcy, insolvency, reorganization, moratorium,
            fraudulent transfer or similar laws relating to creditors' rights
            generally and, (B) general principles of equity (regardless of
            whether such enforcement is considered in a proceeding in equity or
            at law) and an implied covenant of good faith and fair dealing.

                  (iv) The Notes have been duly authorized by all necessary
            corporate action on the part of the Company and have been duly
            executed by the proper officers of the Company, and, when duly
            authenticated by the Trustee and delivered as contemplated hereby
            and by the Indenture, will be valid and binding obligations of the
            Company enforceable in accordance with their terms and entitled to
            the benefits of the Indenture; except, in each case, to the extent
            that the enforceability thereof may be limited by (A) bankruptcy,
            insolvency, reorganization, moratorium, fraudulent transfer or
            similar laws relating to creditors' rights generally and, (B)
            general principles of equity (regardless of whether such enforcement
            is considered in a proceeding in equity or at law) and an implied
            covenant of good faith and fair dealing.

                  (v) The Guarantees have been duly authorized by all necessary
            corporate action on the part of the Subsidiary Guarantors and have
            been duly executed by the proper officers of the Subsidiary
            Guarantors, and, when delivered as contemplated hereby and by the
            Indenture, will be valid and binding obligations of the Subsidiary
            Guarantors enforceable in accordance with their terms; except, in
            each case, to the extent that the enforceability thereof may be
            limited by (A) bankruptcy, insolvency, reorganization, moratorium,
            fraudulent transfer or similar laws relating to creditors' rights
            generally and, (B) general principles of equity (regardless of
            whether such enforcement is considered in a proceeding in equity or
            at law) and an implied covenant of good faith and fair dealing.

                  (vi) The Notes, the Guarantees and the Indenture conform in
            all material respects to the respective statements relating thereto
            contained in the Offering Memorandum, and the forms of certificates
            used to evidence the Notes comply with the requirements of the
            Securities Act, the Exchange Act and the Trust Indenture Act.





                                      -17-
   18
                  (vii) Subject to compliance by the Purchasers with Paragraph
            11 hereof, no authorization, consent or approval of, or other order
            by, any administrative or governmental, authority or agency or, to
            the best of such counsel's knowledge, any court is required by or on
            behalf of the Company in connection with the purchase and sale of
            the Notes by the Purchasers, except as may have been obtained or may
            be required by the securities or Blue Sky laws of any state of the
            United States.

                  (viii) The statements in the Offering Memorandum under the
            caption "Certain Federal Income Tax Consequences" are correct in all
            material respects.

                  (ix) No registration of the Notes or the Guarantees under the
            Securities Act and no qualification of an indenture under the Trust
            Indenture Act is required in connection with the offer and sale of
            the Notes in the manner contemplated by the Offering Memorandum,
            this Agreement and the other arrangements made to restrict offers
            and sales of the Notes.

                  (x) The Company is not and will not as a result of the offer
            and sale of the Notes be (i) an "investment company" or a company
            "controlled" by an investment company within the meaning of the
            United States Investment Company Act of 1940, as amended, (ii) a
            "holding company" or a "subsidiary company" of a holding company or
            an "affiliate" thereof within the meaning of the United States
            Public Utility Holding Company Act of 1935, as amended, or (iii)
            subject to regulation under the United States Federal Power Act or
            any federal or state statute or regulation limiting its ability to
            incur indebtedness for borrowed money.

In addition, such counsel shall state that such counsel has participated in the
preparation of the Offering Memorandum, including conferences with officers and
other representatives of the Company and its subsidiaries, and representatives
of the independent public accountants of the Company and its subsidiaries, at
which conferences the contents of the Offering Memorandum and related matters
were discussed and, although they are not passing upon the accuracy or
completeness of the statements contained in the Offering Memorandum (except as
specified in 8(d)(vi) and (viii) above), on the basis of the foregoing, nothing
has come to the attention of such counsel which gives them reason to believe
that the Offering Memorandum, as of its date and at the Delivery Date (except as
to the information provided to the Company described in Section 7(g) and the
financial statements, financial data and supporting schedules contained or
incorporated therein, as to which such counsel need express no opinion),
contained or contains any untrue statement of a material fact or omitted or
omits to state a material fact required to be stated therein or necessary to
make the statements therein, in the light of circumstances in which made, not
misleading. The aforementioned opinion shall be limited to the Federal laws of
the United States of America, the laws of the State of Arizona and the general
corporate law of the 



                                      -18-
   19
State of Delaware. Such counsel may rely on opinions of local counsel
satisfactory to UBS with respect to matters of law of jurisdictions other than
the State of Arizona.

            (e) The Company shall have furnished to the Purchasers the opinion
      or opinions of Morgan Gust, Esq., Vice President, General Counsel and
      Secretary to the Company, addressed to the Purchasers and dated the
      Delivery Date to the effect that:

                  (i) The Company has been duty incorporated and is validly
            existing as a corporation in good standing under the laws of the
            State of Delaware; has the corporate power and authority to own,
            lease and operate its properties and to conduct its business as
            presently conducted and as described in the Offering Memorandum; and
            is duly qualified as a foreign corporation to transact business and
            is in good standing in each jurisdiction in which such qualification
            is required, whether by reason of the ownership or leasing of
            property or the conduct of business, except where the failure to so
            qualify would not have a Material Adverse Effect.

                  (ii) Each Subsidiary Guarantor has been duly incorporated and
            is validly existing as a corporation in good standing under the laws
            of the jurisdiction of its incorporation; has the corporate power
            and authority to own, lease and operate its properties and to
            conduct its business as presently conducted and as described in the
            Offering Memorandum; and is duly qualified as a foreign corporation
            to transact business and is in good standing in each jurisdiction in
            which such qualification is required, whether by reason of the
            ownership or leasing of property or the conduct of business, except
            where the failure to so qualify would not have a Material Adverse
            Effect. All the issued and outstanding capital stock of each
            Subsidiary Guarantor is owned, directly or indirectly, by the
            Company, and, to the knowledge of such counsel, free and clear of
            any Lien.

                  (iii) The descriptions in the Offering Memorandum of statutes,
            legal and governmental proceedings, contracts and other documents
            are accurate and fairly present the information which, to such
            counsel's knowledge, is required to be shown; and such counsel does
            not know of any statutes or legal or governmental proceedings
            required to be described in the Offering Memorandum that are not
            described as required, or of any contracts or documents of a
            character required to be described in the Offering Memorandum that
            are not described as required.

                  (iv) To the best of such counsel's knowledge, neither the
            Company nor any Subsidiary Guarantor is in violation of its charter
            or bylaws, and to the best of such counsel's knowledge neither the
            Company nor any Subsidiary Guarantor is in default in the
            performance or observance of any obligation, agreement, 



                                      -19-
   20
            covenant or condition contained in any material Contract or any
            applicable law, administrative regulation or administrative or court
            order or decree known to such counsel, which violation or default
            would have a Material Adverse Effect.

                  (v) To the best of such counsel's knowledge, the issuance and
            delivery of the Notes and the Guarantees, the execution and delivery
            of this Agreement, the Registration Rights Agreement and the
            Indenture and the consummation of the transactions contemplated
            herein and therein, will not conflict with or constitute a breach
            of, or default under, or result in the creation or imposition of any
            Lien upon any material property or assets of the Company or any
            Subsidiary Guarantor pursuant to any material Contract.

                  (vi) The issuance and delivery of the Notes and the
            Guarantees, the execution and delivery of this Agreement, the
            Registration Rights Agreement and the Indenture and the consummation
            of the transactions contemplated herein and therein, will not result
            in any violation of the provisions of the charter or bylaws of the
            Company or any Subsidiary Guarantor or, to the best of such
            counsel's knowledge, any material applicable law, administrative
            regulation, administrative or court order or decree known to such
            counsel.

            In addition, such counsel shall state that such counsel has reviewed
the sections of the Offering Memorandum under the captions "Business - Legal
Matters" and "Business - Other Matters - Regulatory, Environmental and Other
Matters Affecting Refining and Marketing," and, on the basis of such review, to
the best of such counsel's knowledge, such sections of the Offering Memorandum,
as of the date of the Offering Memorandum and at the Delivery Date, did not
contain any untrue statement of a material fact or omit to state a material fact
required to be stated therein or necessary to make the statements therein, in
the light of the circumstances in which made, not misleading. The aforementioned
opinion shall be limited to the Federal law of the United States of America, the
laws of the State of Arizona and the corporate law of the State of Delaware.
Such counsel may rely on opinions of local counsel satisfactory to UBS with
respect to matters at law of jurisdictions other than the State of Arizona. Such
counsel may rely on certificates of good standing and foreign qualification from
appropriate state officials with respect to opinions regarding good standing and
foreign qualification.

            (f) The Company shall have furnished to the Purchasers on the
      Delivery Date a certificate, dated the Delivery Date, of the President or
      a Vice President and the principal financial or accounting officer of the
      Company stating that to the best of their knowledge based on reasonable
      investigation, the representations and warranties of the Sellers in
      Paragraph 1 are true and correct as of the Delivery Date; and the Sellers
      have complied with all the agreements and satisfied all the conditions on
      their part to be performed or satisfied at or prior to the Delivery Date.



                                      -20-
   21
            (g) The Company shall have furnished to the Purchasers on the
      Delivery Date an agreed upon procedures letter (the "procedures letter")
      of Deloitte & Touche LLP, addressed to the Purchasers and dated the
      Delivery Date, (i) confirming that they are independent public accountants
      within the meaning of, and are in compliance with the applicable
      requirements relating to the qualification of accountants under, Rule 101
      of the Rules of Conduct of the American Institute of Certified Public
      Accountants and (ii) stating, as of the date of the procedures letter (or,
      with respect to matters involving changes or developments since the
      respective dates as of which specified financial information is given in
      the Offering Memorandum, as of a date not more than five days prior to the
      date of the procedures letter), the findings of such firm with respect to
      the financial information included or incorporated by reference in the
      Offering Memorandum and such other matters as the Purchasers may
      reasonably request.

            (h) The Purchasers shall have received the opinion of Andrews &
      Kurth L.L.P., its U.S. counsel, with respect to the Securities, the
      Offering Memorandum and other related matters the Purchasers may
      reasonably request.

            (i) The Notes shall have been accepted for (i) settlement through
      the facilities of DTC, and (ii) if applicable, settlement through the
      facilities of Cedel and Euroclear.

            (j) The Sellers shall have furnished to the Purchasers such further
      certificates and documents, including certificates of officers of the
      Subsidiary Guarantors, as the Purchasers shall have reasonably requested.

            (k)   The Sellers shall have executed and delivered the
      Registration Rights Agreement.

            All opinions, letters, evidences and certificates mentioned above or
elsewhere in this Agreement shall be deemed to be in compliance with the
provisions hereof only if they are in form and substance reasonably satisfactory
to Andrews & Kurth L.L.P., U.S. counsel to the Purchasers.

            9. Stabilization. The Purchasers may, at their discretion, to the
extent permitted by applicable law, make purchases and sales of the Notes for
their own accounts in the open market or otherwise for long or short account, on
such terms as they deem advisable in connection with the distribution of the
Notes, with a view to stabilizing or maintaining the market price of the Notes
at a level other than that which might otherwise prevail on the open market.
Such transactions, if commenced, may be discontinued at any time. In such
circumstances, as between the Company, on the one hand, and the Purchasers, on
the other hand, the Purchasers shall act as principal, and any loss resulting
from stabilization shall be borne, and 




                                      -21-
   22
any profit arising therefrom and any sum received by it shall be beneficially
retained, by the Purchasers for their own account.

            10. Termination. The Purchasers, in their absolute discretion, may
terminate this Agreement by notice given to and received by the Company at any
time before payment is made to the Company on the Delivery Date (i) if there has
been, since the respective dates as of which information is given in the
Offering Memorandum, any Material Adverse Change, which is in the reasonable
judgment of the Purchasers, so material and adverse as to make it impracticable
or inadvisable to proceed with the purchase, sale and delivery of the Notes on
the terms and in the manner contemplated by the Offering Memorandum or (ii) if
trading in any securities of the Company has been suspended by the Commission or
a national securities exchange or the NASD, or if trading generally has been
suspended or materially limited on or by the American Stock Exchange, the New
York Stock Exchange or the NASD or minimum or maximum prices for trading have
been fixed, or maximum ranges for prices for securities have been required, by
either of said exchanges or by order of the Commission or of the NASD or any
other governmental authority, or (iii) if a banking moratorium has been declared
by either Federal, New York or California authorities in the United States or
authorities in London. In addition, notwithstanding anything contained in this
Agreement the Purchasers may by notice to the Company terminate this Agreement
at any time before the time on the Delivery Date when payment would otherwise be
due under this Agreement to the Company in respect of the Notes if, in the
opinion of the Purchasers, there shall have been such a change in national or
international financial, political or economic conditions or currency exchange
rates or exchange controls or any calamity or crisis as would in their
reasonable judgment be likely to prejudice the success of the offering and
distribution of the Notes as contemplated by the Offering Memorandum or dealings
in the Notes in the secondary market. Upon any termination notice being given
under this Paragraph 10, the parties to this Agreement shall (except for the
respective liabilities of the Company and the Purchasers in relation to expenses
and indemnification and contribution as provided in Paragraph 6 and Paragraph 7,
respectively, and except for any liability arising before or in relation to such
termination) be released and discharged from their respective obligations under
this Agreement.

            11.   Representations, Warranties and Agreements of the
Purchasers.  Each Purchaser severally represents, warrants and agrees that:

            (a) The Purchasers understand that the Notes have not been and will
      not be registered under the Securities Act; the Notes have not been and
      will not be offered or sold by a Purchaser or its affiliates or persons
      acting on its behalf except in accordance with Regulation S under the
      Securities Act or pursuant to an exemption from the registration
      requirements of the Securities Act. The Purchasers have offered and sold
      the Notes and will offer and sell the Notes, (i) as part of their
      distribution at any time and (ii) otherwise until 40 days after the later
      of the commencement of the offering of the Notes and the Delivery Date
      (the "restricted period"), only in accordance with the provisions of
      Regulation S, Rule 144A under the Securities Act or to institutional
      "accredited 



                                      -22-
   23
      investors," as defined in Rule 501(a)(1), (2), (3) or (7) under the
      Securities Act. Accordingly, no Purchaser, nor their affiliates nor any
      persons acting on their behalf has engaged or will engage in any directed
      selling efforts with respect to the Notes, and they have complied and will
      comply with any applicable offering restrictions requirement of Regulation
      S with respect to the Notes. Each Purchaser will have sent, at or prior to
      confirmation of sale of Notes pursuant to Regulation S, to each
      distributor, dealer or person receiving a selling concession, fee or other
      remuneration in respect of the Notes from it during the restricted period
      a confirmation or notice to substantially the following effect:

            "The Notes covered hereby have not been registered under the United
      States Securities Act of 1933, as amended (the "Securities Act"), and may
      not be offered or sold within the United States or to, or for the account
      or benefit of, United States persons (i) as part of their distribution at
      any time or (ii) otherwise until 40 days after the later of the
      commencement of the offering and the closing date, except in either case
      in accordance with Regulation S or Rule 144A under the Securities Act.
      Terms used in this paragraph have the meanings given to them by Regulation
      S."

Terms used in this paragraph (a) have the meanings given to them by Regulation 
S.

            (b) No action has been taken or will be taken in any country or
      jurisdiction by a Purchaser (either on its own account or as agent for the
      Company) either in connection with an offering of the Notes or in
      connection with the possession or distribution of the Offering Memorandum
      or any other offering material relating to the Notes which requires any
      action to be taken or filing or registration to be made for that purpose
      in any country or jurisdiction, or which would result in the material
      breach of any applicable rules or regulations or the like (whether by a
      Purchaser or the Company) in any such country or jurisdiction. Each
      Purchaser will comply in all material respects with all applicable laws
      and regulations in each jurisdiction in which it purchases, offers, sells
      or delivers Notes or has in its possession or distributes or causes or
      permits to be distributed the Offering Memorandum or any other offering
      material.

            (c) No Purchaser will offer or sell the Notes in the United States
      by means of any form of general solicitation or general advertising within
      the meaning of Section 502(c) under the Securities Act; provided, however,
      that such limitation shall not preclude the placing of any customary
      tombstone advertisement with respect to the resale of the Notes following
      the expiration of the restricted period. With respect to resales made in
      reliance on Rule 144A of any of the Notes, each Purchaser will deliver
      either with the confirmation of such resale or otherwise prior to
      settlement of such resale a notice to the effect that the resale of such
      Notes has been made in reliance upon the exemption from the registration
      requirements of the Securities Act provided by Rule 144A.



                                      -23-
   24
            (d) (i) No Purchaser has offered or sold nor will any Purchaser
      offer or sell in the United Kingdom any Notes other than to persons whose
      ordinary activities involve them in acquiring, holding, managing or
      disposing of investments (as principal or agent) for the purposes of their
      businesses (except in circumstances that do not constitute an offer to the
      public within the meaning of the Public Offers of Securities Regulations
      1995), (ii) each Purchaser has complied and will comply with all
      applicable provisions of the Financial Services Act 1986 with respect to
      anything done by it in relation to the Notes in, from or otherwise
      involving the United Kingdom, and (iii) each Purchaser has only issued or
      passed on and will only issue or pass on to any person in the United
      Kingdom, any document received by it in connection with the issuance of
      the Notes if that person is of a kind described in Article 11(3) of The
      Financial Services Act 1986 (Investment Advertisements) (Exemption) Order
      1995 or is a person to whom the document may otherwise be lawfully issued
      or passed on.

            The Company acknowledges and agrees that the Purchasers may, subject
to the provisions of this Paragraph 11, offer Notes to other brokers and dealers
for resale by such brokers and dealers.

            12. Survival of Representations, Warranties and Agreements. The
representations, warranties and agreements and other statements of any person
set forth in or made pursuant to this Agreement shall survive the delivery of
and payment for the Notes and shall remain in full force and effect as made on
the Delivery Date regardless of any investigation made by or on behalf of any
person referred to in Paragraph 7. The provisions of Paragraphs 6 and 7 shall
survive the termination or cancellation of this Agreement.

            13. Notices. Any notice or notification in any form to be given
hereunder shall be in writing and shall be delivered in person or sent by
telephone or facsimile transmission (but in the case of a notification by
telephone, with subsequent confirmation by letter or facsimile transmission).
Any notice or notification to the Company or any Subsidiary Guarantor shall be
addressed to or in care of the Company at:

            Giant Industries, Inc.
            23733 North Scottsdale Road
            Scottsdale, Arizona 85255
            Attention: General Counsel
            Telecopy No: (602) 585-8985

Any notice or notification to the Initial Purchaser or to the Purchasers shall
be addressed to it or them at:

            c/o UBS Securities LLC
            299 Park Avenue




                                      -24-
   25
            New York, NY 10171-0026
            Telecopy No: (212) 821-3285

Any notice or notification shall take effect at the time of receipt.

            14. Benefit. This Agreement shall be binding upon the Purchasers,
the Sellers and their respective successors. This Agreement and the terms and
provisions hereof are for the sole benefit of only those persons, except that
(a) the representations, warranties, indemnities and agreements of the Sellers
contained in this Agreement shall also be deemed to be for the benefit of each
Purchaser Indemnified Party and (b) the representations, warranties, indemnities
and agreements of the Purchasers contained in Paragraph 7 hereof shall be deemed
to be for the benefit of each Company Indemnified Party. Nothing in this
Agreement is intended or shall be construed to give any person, other than the
persons referred to in this Paragraph 14, any legal or equitable right, remedy
or claim under or in respect of this Agreement or any provision contained
herein. This Agreement shall not be assigned by any party hereto without the
prior written consent of the other parties hereto.

            15. Miscellaneous. This Agreement shall be governed by and construed
in accordance with the internal (and not the conflict) laws of the State of New
York. This Agreement may be executed in one or more counterparts, and if
executed in more than one counterpart, the executed counterparts shall together
constitute a single instrument. The descriptive headings in this Agreement are
for convenience of reference only and shall not define or limit the provisions
hereof Time shall be of the essence of this Agreement.




                                      -25-
   26
            If the foregoing is in accordance with the Purchasers' understanding
of our agreement, kindly sign and return to us one of the counterparts hereof,
whereupon it will become a binding agreement between the Sellers and the
Purchasers in accordance with its terms.

                                  Very truly yours,

                                  THE COMPANY:

                                  GIANT INDUSTRIES, INC.,
                                  a Delaware corporation



                                  By:  /s/ A. Wayne Davenport
                                      ------------------------
                                      Name: A. Wayne Davenport
                                      Title:Vice President


                                  THE SUBSIDIARY GUARANTORS:

                                  GIANT INDUSTRIES ARIZONA, INC.,
                                  an Arizona corporation



                                  By:  /s/ A. Wayne Davenport
                                      ------------------------
                                      Name: A. Wayne Davenport
                                      Title:Vice President


                                  GIANT EXPLORATION
                                  & PRODUCTION COMPANY,
                                  a Texas corporation



                                  By:  /s/ A. Wayne Davenport
                                      ------------------------
                                      Name: A. Wayne Davenport
                                      Title:Vice President


                                  CINIZA PRODUCTION COMPANY,




                                      -26-
   27
                                  a New Mexico corporation



                                  By:  /s/ A. Wayne Davenport
                                      ------------------------
                                      Name: A. Wayne Davenport
                                      Title:Vice President


                                  GIANT STOP-N-GO OF NEW MEXICO, INC.,
                                  a New Mexico corporation



                                  By:  /s/ A. Wayne Thompson
                                      ------------------------
                                      Name: A. Wayne Davenport
                                      Title:Vice President


                                  GIANT FOUR CORNERS, INC.
                                  an Arizona corporation



                                  By:  /s/ A. Wayne Thompson
                                      ------------------------
                                      Name: A. Wayne Davenport
                                      Title:Vice President


                                  PHOENIX FUEL CO., INC.
                                  an Arizona corporation



                                  By:  /s/ A. Wayne Davenport
                                      ------------------------
                                      Name: A. Wayne Davenport
                                      Title:Vice President




                                      -27-
   28
                                  SAN JUAN REFINING COMPANY,
                                  a New Mexico corporation



                                  By:  /s/ A. Wayne Davenport
                                      ------------------------v
                                      Name: A. Wayne Davenport
                                      Title:Vice President


                                  GIANT MID-CONTINENT, INC.,
                                  an Arizona corporation



                                  By:  /s/ A. Wayne Davenport
                                      ------------------------
                                      Name: A. Wayne Davenport
                                      Title:Vice President



                                      -28-
   29
THE PURCHASERS:

The foregoing Purchase Agreement is hereby confirmed and accepted as of the date
   first above written.

UBS SECURITIES LLC
DONALDSON, LUFKIN & JENRETTE
   SECURITIES CORPORATION
BANCAMERICA SECURITIES, INC.
JEFFERIES & COMPANY, INC.

By:  UBS Securities LLC



     By:  /s/ Susan Ward
        ----------------------------
        Name: Susan Ward
        Title:   Managing Director




                                      -29-
   30
                                   SCHEDULE I




INITIAL PURCHASERS                                                 PRINCIPAL
                                                                 AMOUNT OF NOTES
                                                               --------------  

                                                                    
UBS Securities LLC...........................................     $75,000,000

Donaldson, Lufkin & Jenrette Securities Corporation..........      45,000,000

BancAmerica Securities, Inc..................................      15,000,000

Jefferies & Company, Inc.....................................      15,000,000
                                                               --------------

                                                                 $150,000,000
                                                               ==============






                                      -30-