EXHIBIT 10.13



                               GUARANTEE AGREEMENT
                             CHANDLER (U.S.A.), INC.
                          Dated as of December 16, 2003


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                                TABLE OF CONTENTS
                                                                            PAGE
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                                    ARTICLE I

                         DEFINITIONS AND INTERPRETATION

SECTION 1.1   Definitions and Interpretation. .................................1

                                   ARTICLE II

               POWERS, DUTIES AND RIGHTS OF THE GUARANTEE TRUSTEE

SECTION 2.1   Powers and Duties of the Guarantee Trustee. .....................4
SECTION 2.2   Certain Rights of the Guarantee Trustee. ........................5
SECTION 2.3   Not Responsible for Recitals or Issuance of Guarantee. ..........7
SECTION 2.4   Events of Default; Waiver. ......................................7
SECTION 2.5   Events of Default; Notice. ......................................8

                                   ARTICLE III

                              THE GUARANTEE TRUSTEE

SECTION 3.1   The Guarantee Trustee; Eligibility. .............................8
SECTION 3.2   Appointment, Removal and Resignation of the Guarantee Trustee. ..9

                                   ARTICLE IV

                                    GUARANTEE

SECTION 4.1   Guarantee. ......................................................9
SECTION 4.2   Waiver of Notice and Demand. ...................................10
SECTION 4.3   Obligations Not Affected. ......................................10
SECTION 4.4   Rights of Holders. .............................................11
SECTION 4.5   Guarantee of Payment. ..........................................11
SECTION 4.6   Subrogation. ...................................................11
SECTION 4.7   Independent Obligations. .......................................12
SECTION 4.8   Enforcement. ...................................................12

                                    ARTICLE V

                    LIMITATION OF TRANSACTIONS; SUBORDINATION

SECTION 5.1   Limitation of Transactions. ....................................12
SECTION 5.2   Ranking. .......................................................13

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                                   ARTICLE VI

                                   TERMINATION

SECTION 6.1   Termination. ...................................................13

                                   ARTICLE VII

                                 INDEMNIFICATION

SECTION 7.1   Exculpation. ...................................................13
SECTION 7.2   Indemnification. ...............................................14
SECTION 7.3   Compensation; Reimbursement of Expenses. .......................15

                                  ARTICLE VIII

                                  MISCELLANEOUS

SECTION 8.1   Successors and Assigns. ........................................15
SECTION 8.2   Amendments. ....................................................16
SECTION 8.3   Notices. .......................................................16
SECTION 8.4   Benefit. .......................................................17
SECTION 8.5   Governing Law. .................................................17
SECTION 8.6   Counterparts. ..................................................17

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                                                                         PAGE 1

                               GUARANTEE AGREEMENT
                               -------------------

     This GUARANTEE AGREEMENT (the "Guarantee"), dated as of December 16, 2003,
is executed and delivered by Chandler (U.S.A.), Inc., an insurance holding
company incorporated in Oklahoma (the "Guarantor"), and Wilmington Trust
Company, a Delaware banking corporation, as trustee (the "Guarantee Trustee"),
for the benefit of the Holders (as defined herein) from time to time of the
Capital Securities (as defined herein) of Chandler Capital Trust II, a
Delaware statutory trust (the "Issuer").

     WHEREAS, pursuant to an Amended and Restated Declaration of Trust (the
"Declaration"), dated as of December 16, 2003, among the trustees named therein
of the Issuer, Chandler (U.S.A.), Inc., as sponsor, and the Holders from time
to time of undivided beneficial interests in the assets of the Issuer, the
Issuer is issuing on the date hereof securities, having an aggregate
liquidation amount of $7,000,000, designated in the Declaration as InCapS SM
(the "Capital Securities"); and

     WHEREAS, as incentive for the Holders to purchase the Capital Securities,
the Guarantor desires irrevocably and unconditionally to agree, to the extent
set forth in this Guarantee, to pay to the Holders of Capital Securities the
Guarantee Payments (as defined herein) and to make certain other payments on
the terms and conditions set forth herein.

     NOW, THEREFORE, in consideration of the purchase by each Holder of the
Capital Securities, which purchase the Guarantor hereby agrees shall benefit
the Guarantor, the Guarantor executes and delivers this Guarantee for the
benefit of the Holders.

                                    ARTICLE I

                         DEFINITIONS AND INTERPRETATION

                  SECTION 1.1  DEFINITIONS AND INTERPRETATION.
                               ------------------------------

     In this Guarantee, unless the context otherwise requires:
     (a)  capitalized terms used in this Guarantee but not defined in the
preamble above have the respective meanings assigned to them in this
Section 1.1;

     (b)  a term defined anywhere in this Guarantee has the same meaning
throughout;

     (c)  all references to "the Guarantee" or "this Guarantee" are to this
Guarantee as modified, supplemented or amended from time to time;

     (d)  all references in this Guarantee to Articles and Sections are to
Articles and Sections of this Guarantee, unless otherwise specified;

     (e)  terms defined in the Declaration as of the date of execution of this
Guarantee have the same meanings when used in this Guarantee, unless otherwise
defined in this Guarantee or unless the context otherwise requires; and

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                                                                         PAGE 2

     (f)  a reference to the singular includes the plural and vice versa.

     "Beneficiaries" means any Person to whom the Issuer is or hereafter
becomes indebted or liable.

     "Common Securities" has the meaning specified in the Declaration.

     "Corporate Trust Office"  means the office of the Guarantee Trustee at
which at any particular time its corporate trust business shall be principally
administered, which at all times shall be located within the United States and
at the time of the execution of this Guarantee shall be Rodney Square North,
1100 North Market Street, Wilmington, DE 19890-0001.

     "Covered Person" means any Holder of Capital Securities.

     "Debenture Issuer" means Chandler (U.S.A.), Inc. or any successor entity
resulting from any consolidation, amalgamation, merger or other business
combination, in its capacity as issuer of the Debentures.

     "Debentures" means the junior subordinated debentures of the Debenture
Issuer that are designated in the Indenture as the "Floating Rate Junior
Subordinated Debt Securities due 2034" and held by the Institutional Trustee
(as defined in the Declaration) of the Issuer.

     "Event of Default" has the meaning set forth in Section 2.4.

     "Guarantee Payments" means the following payments or distributions,
without duplication, with respect to the Capital Securities, to the extent
not paid or made by the Issuer: (i) any accrued and unpaid Distributions (as
defined in the Declaration) which are required to be paid on such Capital
Securities to the extent the Issuer has funds available in the Property Account
(as defined in the Declaration) therefor at such time, (ii) the price payable
upon the redemption of any Capital Securities to the extent the Issuer has
funds available in the Property Account therefor at such time, with respect
to any Capital Securities that are (1) called for redemption by the Issuer or
(2) mandatorily redeemed by the Issuer, in each case, in accordance with the
terms of such Capital Securities, and (iii) upon a voluntary or involuntary
liquidation, dissolution, winding-up or termination of the Issuer (other than
in connection with the distribution of Debentures to the Holders of the Capital
Securities in exchange therefor as provided in the Declaration), the lesser of
(a) the aggregate of the liquidation amount of the Capital Securities and all
accrued and unpaid Distributions on the Capital Securities to the date of
payment, to the extent the Issuer has funds available in the Property Account
therefor at such time, and (b) the amount of assets of the Issuer remaining
available for distribution to Holders in liquidation of the Issuer after
satisfaction of liabilities to creditors of the Issuer as required by
applicable law (in either case, the "Liquidation Distribution").

     "Guarantee Trustee" means Wilmington Trust Company, until a Successor
Guarantee Trustee has been appointed and has accepted such appointment pursuant
to the terms of this Guarantee and thereafter means each such Successor
Guarantee Trustee.

     "Holder" means any Person in whose name any Capital Securities are
registered on the books and records of the Issuer; PROVIDED, HOWEVER, that,
in determining whether the

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holders of the requisite percentage of Capital Securities have given any
request, notice, consent or waiver hereunder, "Holder" shall not include the
Guarantor or any Affiliate of the Guarantor.

     "Indemnified Person" means the Guarantee Trustee (including in its
individual capacity), any Affiliate of the Guarantee Trustee, or any officers,
directors, shareholders, members, partners, employees, representatives,
nominees, custodians or agents of the Guarantee Trustee.

     "Indenture" means the Indenture, dated as of December 16, 2003, between
the Debenture Issuer and Wilmington Trust Company, not in its individual
capacity but solely as trustee, and any indenture supplemental thereto
pursuant to which the Debentures are to be issued to the Institutional Trustee
of the Issuer.

     "Liquidation Distribution" has the meaning set forth in the definition of
"Guarantee Payments" herein.

     "Majority in liquidation amount of the Capital Securities" means Holder(s)
of outstanding Capital Securities, voting together as a class, but separately
from the holders of Common Securities, of more than 50% of the aggregate
liquidation amount (including the amount that would be paid upon the
redemption, liquidation or otherwise on the date upon which the voting
percentages are determined, plus unpaid Distributions accrued thereon to such
date) of all Capital Securities then outstanding.

     "Obligations" means any costs, expenses or liabilities (but not including
liabilities related to taxes) of the Issuer, other than obligations of the
Issuer to pay to holders of any Trust Securities the amounts due such holders
pursuant to the terms of the Trust Securities.

     "Officer's Certificate" means, with respect to any Person, a certificate
signed by one Authorized Officer of such Person.  Any Officer's Certificate
delivered with respect to compliance with a condition or covenant provided for
in this Guarantee shall include:

     (a)  a statement that such officer signing the Officer's Certificate has
read the covenant or condition and the definitions relating thereto;

     (b)  a brief statement of the nature and scope of the examination or
investigation undertaken by such officer in rendering the Officer's Certificate;

     (c)  a statement that such officer has made such examination or
investigation as, in such officer's opinion, is necessary to enable such
officer to express an informed opinion as to whether or not such covenant or
condition has been complied with; and

     (d)  a statement as to whether, in the opinion of such officer, such
condition or covenant has been complied with.

     "Person" means a legal person, including any individual, corporation,
estate, partnership, joint venture, association, joint stock company, limited
liability company, trust, unincorporated association, or government or any
agency or political subdivision thereof, or any other entity of whatever nature.

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     "Responsible Officer" means, with respect to the Guarantee Trustee, any
officer within the Corporate Trust Office of the Guarantee Trustee with direct
responsibility for the administration of any matters relating to this
Guarantee, including any vice president, any assistant vice president, any
secretary, any assistant secretary, the treasurer, any assistant treasurer,
any trust officer or other officer of the Corporate Trust Office of the
Guarantee Trustee customarily performing functions similar to those performed
by any of the above designated officers and also means, with respect to a
particular corporate trust matter, any other officer to whom such matter is
referred because of that officer's knowledge of and familiarity with the
particular subject.

     "Successor Guarantee Trustee" means a successor Guarantee Trustee
possessing the qualifications to act as Guarantee Trustee under Section 3.1.

     "Trust Securities" means the Common Securities and the Capital Securities.

                                   ARTICLE II

               POWERS, DUTIES AND RIGHTS OF THE GUARANTEE TRUSTEE

            SECTION 2.1  POWERS AND DUTIES OF THE GUARANTEE TRUSTEE.
                         ------------------------------------------

     (a)  This Guarantee shall be held by the Guarantee Trustee for the benefit
of the Holders of the Capital Securities, and the Guarantee Trustee shall not
transfer this Guarantee to any Person except a Holder of Capital Securities
exercising his or her rights pursuant to Section 4.4 (b) or to a Successor
Guarantee Trustee on acceptance by such Successor Guarantee Trustee of its
appointment to act as Successor Guarantee Trustee.  The right, title and
interest of the Guarantee Trustee shall automatically vest in any Successor
Guarantee Trustee, and such vesting and cessation of title shall be effective
whether or not conveyancing documents have been executed and delivered pursuant
to the appointment of such Successor Guarantee Trustee.

     (b)  If an Event of Default actually known to a Responsible Officer of
the Guarantee Trustee has occurred and is continuing, the Guarantee Trustee
shall enforce this Guarantee for the benefit of the Holders of the Capital
Securities.

     (c)  The Guarantee Trustee, before the occurrence of any Event of Default
and after the curing or waiving of all Events of Default that may have
occurred, shall undertake to perform only such duties as are specifically set
forth in this Guarantee, and no implied covenants shall be read into this
Guarantee against the Guarantee Trustee.  In case an Event of Default has
occurred (that has not been cured or waived pursuant to Section 2.4(b)) and is
actually known to a Responsible Officer of the Guarantee Trustee, the Guarantee
Trustee shall exercise such of the rights and powers vested in it by this
Guarantee, and use the same degree of care and skill in its exercise thereof,
as a prudent person would exercise or use under the circumstances in the
conduct of his or her own affairs.

     (d)  No provision of this Guarantee shall be construed to relieve the
Guarantee Trustee from liability for its own negligent action, its own
negligent failure to act, or its own willful misconduct or bad faith, except
that:

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          (i)    prior to the occurrence of any Event of Default and after the
   curing or waiving of all Events of Default that may have occurred:

                 (A)  the duties and obligations of the Guarantee Trustee shall
        be determined solely by the express provisions of this Guarantee, and
        the Guarantee Trustee shall not be liable except for the performance of
        such duties and obligations as are specifically set forth in this
        Guarantee, and no implied covenants or obligations shall be read into
        this Guarantee against the Guarantee Trustee; and

                 (B)  in the absence of bad faith on the part of the Guarantee
        Trustee, the Guarantee Trustee may conclusively rely, as to the truth
        of the statements and the correctness of the opinions expressed
        therein, upon any certificates or opinions furnished to the Guarantee
        Trustee and conforming to the requirements of this Guarantee; but in
        the case of any such certificates or opinions furnished to the
        Guarantee Trustee, the Guarantee Trustee shall be under a duty to
        examine the same to determine whether or not on their face they
        conform to the requirements of this Guarantee;

          (ii)   the Guarantee Trustee shall not be liable for any error of
   judgment made in good faith by a Responsible Officer of the Guarantee
   Trustee, unless it shall be proved that such Responsible Officer of the
   Guarantee Trustee or the Guarantee Trustee was negligent in ascertaining
   the pertinent facts upon which such judgment was made;

          (iii)  the Guarantee Trustee shall not be liable with respect to any
   action taken or omitted to be taken by it in good faith in accordance with
   the written direction of the Holders of a Majority in liquidation amount of
   the Capital Securities relating to the time, method and place of conducting
   any proceeding for any remedy available to the Guarantee Trustee, or
   exercising any trust or power conferred upon the Guarantee Trustee under
   this Guarantee; and

          (iv)   no provision of this Guarantee shall require the Guarantee
   Trustee to expend or risk its own funds or otherwise incur personal
   financial liability in the performance of any of its duties or in the
   exercise of any of its rights or powers, if the Guarantee Trustee shall
   have reasonable grounds for believing that the repayment of such funds is
   not reasonably assured to it under the terms of this Guarantee, or security
   and indemnity, reasonably satisfactory to the Guarantee Trustee, against
   such risk or liability is not reasonably assured to it.

              SECTION 2.2  CERTAIN RIGHTS OF THE GUARANTEE TRUSTEE.
                           ---------------------------------------

     (a)  Subject to the provisions of Section 2.1:

          (i)    The Guarantee Trustee may conclusively rely, and shall be
   fully protected in acting or refraining from acting upon, any resolution,
   certificate, statement, instrument, opinion, report, notice, request,
   direction, consent, order, bond, debenture, note, other evidence of
   indebtedness or other paper or document believed by it to be genuine and to
   have been signed, sent or presented by the proper party or parties.

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          (ii)   Any direction or act of the Guarantor contemplated by this
   Guarantee shall be sufficiently evidenced by an Officer's Certificate.

          (iii)  Whenever, in the administration of this Guarantee, the
   Guarantee Trustee shall deem it desirable that a matter be proved or
   established before taking, suffering or omitting any action hereunder, the
   Guarantee Trustee (unless other evidence is herein specifically prescribed)
   may, in the absence of bad faith on its part, request and conclusively rely
   upon an Officer's Certificate of the Guarantor which, upon receipt of such
   request, shall be promptly delivered by the Guarantor.

          (iv)   The Guarantee Trustee shall have no duty to see to any
   recording, filing or registration of any instrument or other writing (or any
   rerecording, refiling or reregistration thereof).

          (v)    The Guarantee Trustee may consult with counsel of its
   selection, and the advice or opinion of such counsel with respect to legal
   matters shall be full and complete authorization and protection in respect
   of any action taken, suffered or omitted by it hereunder in good faith and
   in accordance with such advice or opinion.  Such counsel may be counsel to
   the Guarantor or any of its Affiliates and may include any of its employees.
   The Guarantee Trustee shall have the right at any time to seek instructions
   concerning the administration of this Guarantee from any court of competent
   jurisdiction.

          (vi)   The Guarantee Trustee shall be under no obligation to exercise
   any of the rights or powers vested in it by this Guarantee at the request or
   direction of any Holder, unless such Holder shall have provided to the
   Guarantee Trustee such security and indemnity, reasonably satisfactory to
   the Guarantee Trustee, against the costs, expenses (including attorneys'
   fees and expenses and the expenses of the Guarantee Trustee's agents,
   nominees or custodians) and liabilities that might be incurred by it in
   complying with such request or direction, including such reasonable advances
   as may be requested by the Guarantee Trustee; provided, however, that
   nothing contained in this Section 2.2(a)(vi) shall be taken to relieve the
   Guarantee Trustee, upon the occurrence of an Event of Default, of its
   obligation to exercise the rights and powers vested in it by this Guarantee.

          (vii)  The Guarantee Trustee shall not be bound to make any
   investigation into the facts or matters stated in any resolution,
   certificate, statement, instrument, opinion, report, notice, request,
   direction, consent, order, bond, debenture, note, other evidence of
   indebtedness or other paper or document, but the Guarantee Trustee, in its
   discretion, may make such further inquiry or investigation into such facts
   or matters as it may see fit.

          (viii) The Guarantee Trustee may execute any of the trusts or powers
   hereunder or perform any duties hereunder either directly or by or through
   agents, nominees, custodians or attorneys, and the Guarantee Trustee shall
   not be responsible for any misconduct or negligence on the part of any agent
   or attorney appointed with due care by it hereunder.

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          (ix)   Any action taken by the Guarantee Trustee or its agents
   hereunder shall bind the Holders of the Capital Securities, and the
   signature of the Guarantee Trustee or its agents alone shall be sufficient
   and effective to perform any such action.  No third party shall be required
   to inquire as to the authority of the Guarantee Trustee to so act or as to
   its compliance with any of the terms and provisions of this Guarantee, both
   of which shall be conclusively evidenced by the Guarantee Trustee's or its
   agent's taking such action.

          (x)    Whenever in the administration of this Guarantee the Guarantee
   Trustee shall deem it desirable to receive instructions with respect to
   enforcing any remedy or right or taking any other action hereunder, the
   Guarantee Trustee (A) may request instructions from the Holders of a
   Majority in liquidation amount of the Capital Securities, (B) may refrain
   from enforcing such remedy or right or taking such other action until such
   instructions are received and (C) shall be protected in conclusively relying
   on or acting in accordance with such instructions.

          (xi)   The Guarantee Trustee shall not be liable for any action
   taken, suffered, or omitted to be taken by it in good faith and reasonably
   believed by it to be authorized or within the discretion or rights or powers
   conferred upon it by this Guarantee.

     (b)  No provision of this Guarantee shall be deemed to impose any duty or
obligation on the Guarantee Trustee to perform any act or acts or exercise any
right, power, duty or obligation conferred or imposed on it, in any
jurisdiction in which it shall be illegal or in which the Guarantee Trustee
shall be unqualified or incompetent in accordance with applicable law to
perform any such act or acts or to exercise any such right, power, duty or
obligation.  No permissive power or authority available to the Guarantee
Trustee shall be construed to be a duty.

       SECTION 2.3  NOT RESPONSIBLE FOR RECITALS OR ISSUANCE OF GUARANTEE.
                    -----------------------------------------------------

     The recitals contained in this Guarantee shall be taken as the statements
of the Guarantor, and the Guarantee Trustee does not assume any responsibility
for their correctness.  The Guarantee Trustee makes no representation as to
the validity or sufficiency of this Guarantee.

       SECTION 2.4  EVENTS OF DEFAULT; WAIVER.
                    -------------------------

     (a)  An "Event of Default" under this Guarantee will occur upon the
failure of the Guarantor to perform any of its payment or other obligations
hereunder.

     (b)  The Holders of a Majority in liquidation amount of the Capital
Securities may, voting or consenting as a class, on behalf of the Holders of
all of the Capital Securities, waive any past Event of Default and its
consequences.  Upon such waiver, any such Event of Default shall cease to
exist, and shall be deemed to have been cured, for every purpose of this
Guarantee, but no such waiver shall extend to any subsequent or other default
or Event of Default or impair any right consequent thereon.

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                     SECTION 2.5  EVENTS OF DEFAULT; NOTICE.
                                  -------------------------

     (a)  The Guarantee Trustee shall, within 90 days after the occurrence of
an Event of Default, transmit by mail, first class postage prepaid, to the
Holders of the Capital Securities, notices of all Events of Default actually
known to a Responsible Officer of the Guarantee Trustee, unless such defaults
have been cured before the giving of such notice, provided, however, that the
Guarantee Trustee shall be protected in withholding such notice if and so long
as a Responsible Officer of the Guarantee Trustee in good faith determines that
the withholding of such notice is in the interests of the Holders of the
Capital Securities.

     (b)  The Guarantee Trustee shall not be charged with knowledge of any
Event of Default unless the Guarantee Trustee shall have received written
notice thereof from the Guarantor or a Holder of the Capital Securities, or a
Responsible Officer of the Guarantee Trustee charged with the administration
of this Guarantee shall have actual knowledge thereof.

                                   ARTICLE III

                              THE GUARANTEE TRUSTEE

                 SECTION 3.1  THE GUARANTEE TRUSTEE; ELIGIBILITY.
                              ----------------------------------

     (a)  There shall at all times be a Guarantee Trustee which shall:

          (i)    not be an Affiliate of the Guarantor; and

          (ii)   be a corporation or national association organized and doing
   business under the laws of the United States of America or any state thereof
   or of the District of Columbia, or Person authorized under such laws to
   exercise corporate trust powers, having a combined capital and surplus of at
   least 50 million U.S. dollars ($50,000,000), and subject to supervision or
   examination by federal, state or District of Columbia authority.  If such
   corporation or national association publishes reports of condition at least
   annually, pursuant to law or to the requirements of the supervising or
   examining authority referred to above, then, for the purposes of this
   Section 3.1(a)(ii), the combined capital and surplus of such corporation or
   national association shall be deemed to be its combined capital and surplus
   as set forth in its most recent report of condition so published.

     (b)   If at any time the Guarantee Trustee shall cease to be eligible to
so act under Section 3.1(a), the Guarantee Trustee shall immediately resign in
the manner and with the effect set forth in Section 3.2(c).

     (c)  If the Guarantee Trustee has or shall acquire any "conflicting
interest" within the meaning of Section 310(b) of the Trust Indenture Act, the
Guarantee Trustee shall either eliminate such interest or resign to the extent
and in the manner provided by, and subject to, this Guarantee.

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                                                                         PAGE 9

   SECTION 3.2  APPOINTMENT, REMOVAL AND RESIGNATION OF THE GUARANTEE TRUSTEE.
                -------------------------------------------------------------

     (a)  Subject to Section 3.2(b), the Guarantee Trustee may be appointed or
removed without cause at any time by the Guarantor except during an Event of
Default.

     (b)  The Guarantee Trustee shall not be removed in accordance with Section
3.2(a) until a Successor Guarantee Trustee has been appointed and has accepted
such appointment by written instrument executed by such Successor Guarantee
Trustee and delivered to the Guarantor.

     (c)  The Guarantee Trustee appointed to office shall hold office until a
Successor Guarantee Trustee shall have been appointed or until its removal or
resignation.  The Guarantee Trustee may resign from office (without need for
prior or subsequent accounting) by an instrument in writing executed by the
Guarantee Trustee and delivered to the Guarantor, which resignation shall not
take effect until a Successor Guarantee Trustee has been appointed and has
accepted such appointment by an instrument in writing executed by such
Successor Guarantee Trustee and delivered to the Guarantor and the resigning
Guarantee Trustee.

     (d)  If no Successor Guarantee Trustee shall have been appointed and
accepted appointment as provided in this Section 3.2 within 60 days after
delivery of an instrument of removal or resignation, the Guarantee Trustee
resigning or being removed may petition any court of competent jurisdiction
for appointment of a Successor Guarantee Trustee.  Such court may thereupon,
after prescribing such notice, if any, as it may deem proper, appoint a
Successor Guarantee Trustee.

     (e)  No Guarantee Trustee shall be liable for the acts or omissions to act
of any Successor Guarantee Trustee.

     (f)  Upon termination of this Guarantee or removal or resignation of the
Guarantee Trustee pursuant to this Section 3.2, the Guarantor shall pay to the
Guarantee Trustee all amounts owing to the Guarantee Trustee under Sections 7.2
and 7.3 accrued to the date of such termination, removal or resignation.

                                   ARTICLE IV

                                    GUARANTEE

                             SECTION 4.1  GUARANTEE.
                                          ---------

     (a)  The Guarantor irrevocably and unconditionally agrees to pay in full
to the Holders the Guarantee Payments (without duplication of amounts
theretofore paid by the Issuer), as and when due, regardless of any defense
(except defense of payment by the Issuer), right of set-off or counterclaim
that the Issuer may have or assert.  The Guarantor's obligation to make a
Guarantee Payment may be satisfied by direct payment of the required amounts
by the Guarantor to the Holders or by causing the Issuer to pay such amounts
to the Holders.

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                                                                         PAGE 10

     (b)  The Guarantor hereby also agrees to assume any and all Obligations of
the Issuer and in the event any such Obligation is not so assumed, subject to
the terms and conditions hereof, the Guarantor hereby irrevocably and
unconditionally guarantees to each Beneficiary the full payment, when and as
due, of any and all Obligations to such Beneficiaries.  This Guarantee is
intended to be for the Beneficiaries who have received notice hereof.

                    SECTION 4.2  WAIVER OF NOTICE AND DEMAND.
                                 ---------------------------

     The Guarantor hereby waives notice of acceptance of this Guarantee and of
any liability to which it applies or may apply, presentment, demand for
payment, any right to require a proceeding first against the Issuer or any
other Person before proceeding against the Guarantor, protest, notice of
nonpayment, notice of dishonor, notice of redemption and all other notices
and demands.

                     SECTION 4.3  OBLIGATIONS NOT AFFECTED.
                                  ------------------------

     The obligations, covenants, agreements and duties of the Guarantor under
this Guarantee shall in no way be affected or impaired by reason of the
happening from time to time of any of the following:

     (a)  the release or waiver, by operation of law or otherwise, of the
performance or observance by the Issuer of any express or implied agreement,
covenant, term or condition relating to the Capital Securities to be performed
or observed by the Issuer;

     (b)  the extension of time for the payment by the Issuer of all or any
portion of the Distributions, the price payable upon the redemption of the
Capital Securities, the Liquidation Distribution or any other sums payable
under the terms of the Capital Securities or the extension of time for the
performance of any other obligation under, arising out of, or in connection
with, the Capital Securities (other than an extension of time for the payment
of the Distributions, the price payable upon the redemption of the Capital
Securities, the Liquidation Distribution or other sums payable that results
from the extension of any interest payment period on the Debentures);

     (c)  any failure, omission, delay or lack of diligence on the part of the
Holders to enforce, assert or exercise any right, privilege, power or remedy
conferred on the Holders pursuant to the terms of the Capital Securities, or
any action on the part of the Issuer granting indulgence or extension of any
kind;

     (d)  the voluntary or involuntary liquidation, dissolution, sale of any
collateral, receivership, insolvency, bankruptcy, assignment for the benefit
of creditors, reorganization, arrangement, composition or readjustment of debt
of, or other similar proceedings affecting, the Issuer or any of the assets of
the Issuer;

     (e)  any invalidity of, or defect or deficiency in, the Capital Securities;

     (f)  the settlement or compromise of any obligation guaranteed hereby or
hereby incurred; or

<PAGE>
                                                                         PAGE 11

     (g)  any other circumstance whatsoever that might otherwise constitute a
legal or equitable discharge or defense of a guarantor, it being the intent of
this Section 4.3 that the obligations of the Guarantor hereunder shall be
absolute and unconditional under any and all circumstances.

     There shall be no obligation of the Holders to give notice to, or obtain
consent of, the Guarantor with respect to the happening of any of the foregoing.

                         SECTION 4.4  RIGHTS OF HOLDERS.
                                      -----------------

     (a)  The Holders of a Majority in liquidation amount of the Capital
Securities have the right to direct the time, method and place of conducting
any proceeding for any remedy available to the Guarantee Trustee in respect of
this Guarantee or to direct the exercise of any trust or power conferred upon
the Guarantee Trustee under this Guarantee; provided, however, that (subject to
Sections 2.1 and 2.2) the Guarantee Trustee shall have the right to decline to
follow any such direction if the Guarantee Trustee shall determine that the
actions so directed would be unjustly prejudicial to the Holders not taking
part in such direction or if the Guarantee Trustee being advised by legal
counsel determines that the action or proceeding so directed may not lawfully
be taken or if the Guarantee Trustee in good faith by its board of directors
or trustees, executive committee or a trust committee of directors or trustees
and/or Responsible Officers shall determine that the action or proceeding so
directed would involve the Guarantee Trustee in personal liability.

     (b)  Any Holder of Capital Securities may institute a legal proceeding
directly against the Guarantor to enforce the Guarantee Trustee's rights under
this Guarantee, without first instituting a legal proceeding against the
Issuer, the Guarantee Trustee or any other Person.  The Guarantor waives any
right or remedy to require that any such action be brought first against the
Issuer, the Guarantee Trustee or any other Person before so proceeding directly
against the Guarantor.

                        SECTION 4.5  GUARANTEE OF PAYMENT.
                                     --------------------

     This Guarantee creates a guarantee of payment and not of collection.

                            SECTION 4.6  SUBROGATION.
                                         -----------

     The Guarantor shall be subrogated to all (if any) rights of the Holders of
Capital Securities against the Issuer in respect of any amounts paid to such
Holders by the Guarantor under this Guarantee; provided, however, that the
Guarantor shall not (except to the extent required by applicable provisions of
law) be entitled to enforce or exercise any right that it may acquire by way of
subrogation or any indemnity, reimbursement or other agreement, in all cases as
a result of payment under this Guarantee, if, after giving effect to any such
payment, any amounts are due and unpaid under this Guarantee.  If any amount
shall be paid to the Guarantor in violation of the preceding sentence, the
Guarantor agrees to hold such amount in trust for the Holders and to pay over
such amount to the Holders.

<PAGE>
                                                                         PAGE 12

                      SECTION 4.7  INDEPENDENT OBLIGATIONS.
                                   -----------------------

     The Guarantor acknowledges that its obligations hereunder are independent
of the obligations of the Issuer with respect to the Capital Securities and
that the Guarantor shall be liable as principal and as debtor hereunder to
make Guarantee Payments pursuant to the terms of this Guarantee notwithstanding
the occurrence of any event referred to in subsections (a) through (g),
inclusive, of Section 4.3 hereof.

                            SECTION 4.8  ENFORCEMENT.
                                         -----------

     A Beneficiary may enforce the Obligations of the Guarantor contained in
Section 4.1(b) directly against the Guarantor, and the Guarantor waives any
right or remedy to require that any action be brought against the Issuer or
any other person or entity before proceeding against the Guarantor.

     The Guarantor shall be subrogated to all rights (if any) of any
Beneficiary against the Issuer in respect of any amounts paid to the
Beneficiaries by the Guarantor under this Guarantee; provided, however, that
the Guarantor shall not (except to the extent required by applicable
provisions of law) be entitled to enforce or exercise any rights that it may
acquire by way of subrogation or any indemnity, reimbursement or other
agreement, in all cases as a result of payment under this Guarantee, if,
after giving effect to such payment, any amounts are due and unpaid under
this Guarantee.  If any amount shall be paid to the Guarantor in violation of
the preceding sentence, the Guarantor agrees to hold such amount in trust for
the Beneficiaries and to pay over such amount to the Beneficiaries.

                                    ARTICLE V

                    LIMITATION OF TRANSACTIONS; SUBORDINATION

                    SECTION 5.1  LIMITATION OF TRANSACTIONS.
                                 --------------------------

     So long as any Capital Securities remain outstanding, if (a) there shall
have occurred and be continuing an Event of Default or (b) Debenture Issuer
shall have selected an Extension Period as provided in the Indenture and such
period, or any extension thereof, shall have commenced and be continuing,
then the Guarantor may not (x) declare or pay any dividends or distributions
on, or redeem, purchase, acquire, or make a liquidation payment with respect
to, any of the Guarantor's capital stock or (y) make any payment of principal
of or interest or premium, if any, on or repay, repurchase or redeem any debt
securities of the Guarantor that rank in all respects PARI PASSU with or
junior in interest to the Debentures or (z) make any payment under any
guarantees of the Guarantor that rank in all respects PARI PASSU with or junior
in interest to this Guarantee (other than (i) repurchases, redemptions or other
acquisitions of shares of capital stock of the Guarantor (A) in connection with
any employment contract, benefit plan or other similar arrangement with or for
the benefit of one or more employees, officers, directors, or consultants,
(B) in connection with a dividend reinvestment or stockholder stock purchase
plan or (C) in connection with the issuance of capital stock of the Guarantor
(or securities convertible into or exercisable for such capital stock), as
consideration in an acquisition transaction entered into prior to the
occurrence of the Event of Default or the

<PAGE>
                                                                         PAGE 13

applicable Extension Period, (ii) as a result of any exchange or conversion of
any class or series of the Guarantor's capital stock (or any capital stock of
a subsidiary of the Guarantor) for any class or series of the Guarantor's
capital stock or of any class or series of the Guarantor's indebtedness for
any class or series of the Guarantor's capital stock, (iii) the purchase of
fractional interests in shares of the Guarantor's capital stock pursuant to
the conversion or exchange provisions of such capital stock or the security
being converted or exchanged, (iv) any declaration of a dividend in connection
with any stockholder's rights plan, or the issuance of rights, stock or other
property under any stockholder's rights plan, or the redemption or repurchase
of rights pursuant thereto, or (v) any dividend in the form of stock, warrants,
options or other rights where the dividend stock or the stock issuable upon
exercise of such warrants, options or other rights is the same stock as that
on which the dividend is being paid or ranks PARI PASSU with or junior in
interest to such stock).

                              SECTION 5.2  RANKING.
                                           -------

     This Guarantee will constitute an unsecured obligation of the Guarantor
and will rank subordinate and junior in right of payment to all present and
future Senior Indebtedness (as defined in the Indenture) of the Guarantor.  By
their acceptance thereof, each Holder of Capital Securities agrees to the
foregoing provisions of this Guarantee and the other terms set forth herein.

                                   ARTICLE VI

                                   TERMINATION

                            SECTION 6.1  TERMINATION.
                                         -----------

     This Guarantee shall terminate as to the Capital Securities (i) upon full
payment of the price payable upon redemption of all Capital Securities then
outstanding, (ii) upon the distribution of all of the Debentures to the Holders
of all of the Capital Securities or (iii) upon full payment of the amounts
payable in accordance with the Declaration upon dissolution of the Issuer.
This Guarantee will continue to be effective or will be reinstated, as the case
may be, if at any time any Holder of Capital Securities must restore payment of
any sums paid under the Capital Securities or under this Guarantee.

                                   ARTICLE VII

                                 INDEMNIFICATION

                            SECTION 7.1  EXCULPATION.
                                         -----------

     (a)  No Indemnified Person shall be liable, responsible or accountable in
damages or otherwise to the Guarantor or any Covered Person for any loss,
damage or claim incurred by reason of any act or omission of such Indemnified
Person in good faith in accordance with this Guarantee and in a manner that
such Indemnified Person reasonably believed to be within the scope of the
authority conferred on such Indemnified Person by this Guarantee or by law,
except that an Indemnified Person shall be liable for any such loss, damage or
claim

<PAGE>
                                                                         PAGE 14

incurred by reason of such Indemnified Person's negligence, willful misconduct
or bad faith with respect to such acts or omissions.


     (b)  An Indemnified Person shall be fully protected in relying in good
faith upon the records of the Issuer or the Guarantor and upon such
information, opinions, reports or statements presented to the Issuer or the
Guarantor by any Person as to matters the Indemnified Person reasonably
believes are within such other Person's professional or expert competence and
who, if selected by such Indemnified Person, has been selected with reasonable
care by such Indemnified Person, including information, opinions, reports or
statements as to the value and amount of the assets, liabilities, profits,
losses, or any other facts pertinent to the existence and amount of assets from
which Distributions to Holders of Capital Securities might properly be paid.

                          SECTION 7.2  INDEMNIFICATION.
                                       ---------------

     (a)  The Guarantor agrees to indemnify each Indemnified Person for, and to
hold each Indemnified Person harmless against, any and all loss, liability,
damage, claim or expense incurred without negligence, willful misconduct or bad
faith on the part of the Indemnified Person, arising out of or in connection
with the acceptance or administration of the trust or trusts hereunder,
including but not limited to the costs and expenses (including reasonable legal
fees and expenses) of the Indemnified Person defending itself against, or
investigating, any claim or liability in connection with the exercise or
performance of any of the Indemnified Person's powers or duties hereunder.  The
obligation to indemnify as set forth in this Section 7.2 shall survive the
resignation or removal of the Guarantee Trustee and the termination of this
Guarantee.

     (b)  Promptly after receipt by an Indemnified Person under this Section
7.2 of notice of the commencement of any action, such Indemnified Person will,
if a claim in respect thereof is to be made against the Guarantor under this
Section 7.2, notify the Guarantor in writing of the commencement thereof; but
the failure so to notify the Guarantor (i) will not relieve the Guarantor from
liability under paragraph (a) above unless and to the extent that the Guarantor
did not otherwise learn of such action and such failure results in the
forfeiture by the Guarantor of substantial rights and defenses and (ii) will
not, in any event, relieve the Guarantor from any obligations to any
Indemnified Person other than the indemnification obligation provided in
paragraph (a) above.  The Guarantor shall be entitled to appoint counsel of
the Guarantor's choice at the Guarantor's expense to represent the Indemnified
Person in any action for which indemnification is sought (in which case the
Guarantor shall not thereafter be responsible for the fees and expenses of any
separate counsel retained by the Indemnified Person or Persons except as set
forth below); provided, however, that such counsel shall be satisfactory to the
Indemnified Person.  Notwithstanding the Guarantor's election to appoint
counsel to represent the Indemnified Person in any action, the Indemnified
Person shall have the right to employ separate counsel (including local
counsel), and the Guarantor shall bear the reasonable fees, costs and expenses
of such separate counsel, if (i) the use of counsel chosen by the Guarantor to
represent the Indemnified Person would present such counsel with a conflict of
interest, (ii) the actual or potential defendants in, or targets of, any such
action include both the Indemnified Person and the Guarantor and the
Indemnified Person shall have reasonably concluded that there may be legal
defenses available to it and/or other Indemnified Persons

<PAGE>
                                                                         PAGE 15

which are different from or additional to those available to the Guarantor,
(iii) the Guarantor shall not have employed counsel satisfactory to the
Indemnified Person to represent the Indemnified Person within a reasonable
time after notice of the institution of such action or (iv) the Guarantor shall
authorize the Indemnified Person to employ separate counsel at the expense of
the Guarantor.  The Guarantor will not, without the prior written consent of
the Indemnified Persons, settle or compromise or consent to the entry of any
judgment with respect to any pending or threatened claim, action, suit or
proceeding in respect of which indemnification or contribution may be sought
hereunder (whether or not the Indemnified Persons are actual or potential
parties to such claim or action) unless such settlement, compromise or consent
includes an unconditional release of each Indemnified Person from all liability
arising out of such claim, action, suit or proceeding.

              SECTION 7.3  COMPENSATION; REIMBURSEMENT OF EXPENSES.
                           ---------------------------------------

     The Guarantor agrees:

     (a)  to pay to the Guarantee Trustee from time to time such compensation
for all services rendered by it hereunder as the parties shall agree to from
time to time (which compensation shall not be limited by any provision of law
in regard to the compensation of a trustee of an express trust); and

     (b)  except as otherwise expressly provided herein, to reimburse the
Guarantee Trustee upon request for all reasonable expenses, disbursements and
advances incurred or made by it in accordance with any provision of this
Guarantee (including the reasonable compensation and the expenses and
disbursements of its agents and counsel), except any such expense, disbursement
or advance as may be attributable to the negligence, willful misconduct or bad
faith of the Guarantee Trustee.

     The provisions of this Section 7.3 shall survive the resignation or
removal of the Guarantee Trustee and the termination of this Guarantee.

                                  ARTICLE VIII

                                  MISCELLANEOUS

                      SECTION 8.1  SUCCESSORS AND ASSIGNS.
                                   ----------------------

     All guarantees and agreements contained in this Guarantee shall bind the
successors, assigns, receivers, trustees and representatives of the Guarantor
and shall inure to the benefit of the Holders of the Capital Securities then
outstanding.  Except in connection with any merger or consolidation of the
Guarantor with or into another entity or any sale, transfer or lease of the
Guarantor's assets to another entity, in each case to the extent permitted
under the Indenture, the Guarantor may not assign its rights or delegate its
obligations under this Guarantee without the prior approval of the Holders of
a Majority in liquidation amount of the Capital Securities.

<PAGE>
                                                                         PAGE 16

                            SECTION 8.2  AMENDMENTS.
                                         ----------

     Except with respect to any changes that do not adversely affect the
powers, preferences, rights or interests of Holders of the Capital Securities
in any material respect (in which case no approval of Holders will be
required), this Guarantee may be amended only with the prior approval of the
Holders of a Majority in liquidation amount of the Capital Securities.  The
provisions of the Declaration with respect to amendments thereof shall apply
equally with respect to amendments of the Guarantee.

                              SECTION 8.3  NOTICES.
                                           -------

     All notices provided for in this Guarantee shall be in writing, duly
signed by the party giving such notice, and shall be delivered, telecopied or
mailed by first class mail, as follows:

     (a)  If given to the Guarantee Trustee, at the Guarantee Trustee's mailing
address set forth below (or such other address as the Guarantee Trustee may
give notice of to the Holders of the Capital Securities):

          Wilmington Trust Company
         Rodney Square North
          1100 North Market Street
          Wilmington, Delaware 19890-0001
          Attention: Corporate Trust Administration
          Telecopy: 302-651-8882
          Telephone:  302-651-1000

     (b)  If given to the Guarantor, at the Guarantor's mailing address set
forth below (or such other address as the Guarantor may give notice of to the
Holders of the Capital Securities and to the Guarantee Trustee):

          Chandler (U.S.A.), Inc.
          1010 Manvel Avenue
          Chandler, Oklahoma 74834
          Attention: R. Patrick Gilmore
          Telecopy: 405-258-4520
          Telephone: 405-258-0804

     (c)  If given to any Holder of the Capital Securities, at the address set
forth on the books and records of the Issuer.

     All such notices shall be deemed to have been given when received in
person, telecopied with receipt confirmed, or mailed by first class mail,
postage prepaid, except that if a notice or other document is refused delivery
or cannot be delivered because of a changed address of which no notice was
given, such notice or other document shall be deemed to have been delivered on
the date of such refusal or inability to deliver.

<PAGE>
                                                                         PAGE 17

                              SECTION 8.4  BENEFIT.
                                           -------

     This Guarantee is solely for the benefit of the Holders of the Capital
Securities and, subject to Section 2.1(a), is not separately transferable from
the Capital Securities.

                           SECTION 8.5  GOVERNING LAW.
                                        -------------

     THIS GUARANTEE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE
LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO CONFLICT OF LAW PRINCIPLES OF
SAID STATE OTHER THAN SECTION 5-1401 OF THE NEW YORK GENERAL OBLIGATIONS LAW.

                           SECTION 8.6  COUNTERPARTS.
                                        ------------

     This Guarantee may contain more than one counterpart of the signature page
and this Guarantee may be executed by the affixing of the signature of the
Guarantor and the Guarantee Trustee to any of such counterpart signature pages.
All of such counterpart signature pages shall be read as though one, and they
shall have the same force and effect as though all of the signers had signed a
single signature page.

<PAGE>
                                                                         PAGE 18

     THIS GUARANTEE is executed as of the day and year first above written.

                                        CHANDLER (U.S.A.), INC.,
                                        as Guarantor


                                        By: /s/ Mark T. Paden
                                            ------------------------------
                                            Mark T. Paden
                                            President


                                        WILMINGTON TRUST COMPANY,
                                        as Guarantee Trustee

                                        By: /s/ Denise M. Geran
                                            ------------------------------
                                            Denise M. Geran
                                            Vice President