EXECUTION COPY
                   CREDIT CARD RECEIVABLES PURCHASE AGREEMENT
                                      among
                             COYOTE FUNDING, L.L.C.
                                   as Seller,
                DIAMOND SHAMROCK REFINING AND MARKETING COMPANY,
                              as Collection Agent,
                  ASSET SECURITIZATION COOPERATIVE CORPORATION
                            as the Conduit Purchaser,
                       CANADIAN IMPERIAL BANK OF COMMERCE
                           as the Back-Stop Purchaser,
                                       and
                       CANADIAN IMPERIAL BANK OF COMMERCE
                             as Administrative Agent
                           Dated as of March 29, 1999
                                TABLE OF CONTENTS
                                                                            Page
ARTICLE I:  DEFINITIONS........................................................1
ARTICLE II:  PURCHASE FACILITY................................................12
  SECTION 2.1.  Purchase Facility.............................................12
  SECTION 2.2.  Extension or Acceleration of the Termination Date.............13
ARTICLE III:  SALE OF OWNERSHIP INTEREST......................................13
  SECTION 3.1.  Determination of Ownership Interest...........................13
  SECTION 3.2.  Frequency of Determining Aggregate Ownership Interest.........15
  SECTION 3.3.  Maximum Ownership Interest....................................15
  SECTION 3.4.  Blocked Accounts and Collections..............................15
ARTICLE IV:  PURCHASE PRICE...................................................16
  SECTION 4.1.  Determination of Cash Component of Purchase Price.............16
  SECTION 4.2.  Determination of Deferred Payment Component of Purchase 
                Price.........................................................16
ARTICLE V:  FEES AND EXPENSES.................................................17
  SECTION 5.1.  Settlement Date Payments......................................17
    SECTION 5.1.1.  Purchase Discount.........................................17
    SECTION 5.1.2.  Purchase Premium..........................................17
    SECTION 5.1.3.  Operating Expense Fee.....................................18
    SECTION 5.1.4.  Collection Agent Fee......................................18
    SECTION 5.1.5.  Unused Facility Fee.......................................18
    SECTION 5.1.6.  Administration Fee........................................18
  SECTION 5.2.  Structuring Fee...............................................18
  SECTION 5.3.  Legal Fees and Expenses.......................................18
  SECTION 5.4.  Interest on Unpaid Amounts....................................19
  SECTION 5.5.  Audits........................................................19
ARTICLE VI:  PURCHASE PROCEDURES..............................................19
  SECTION 6.1.  Types of Purchases............................................19
  SECTION 6.2.  Notice Requirements...........................................19
  SECTION 6.3.  Conditions Precedent to Initial Purchase......................20
    SECTION 6.3.1.  Membership in the Purchaser...............................20
    SECTION 6.3.2.  Fees......................................................20
    SECTION 6.3.3.  Absence of Liens..........................................20
    SECTION 6.3.4.  Financing Statements......................................20
    SECTION 6.3.5.  Credit Card Receivables Sale Agreement, Etc...............21
    SECTION 6.3.6.  Receivables Activity Report...............................21
    SECTION 6.3.7.  Resolutions...............................................21
    SECTION 6.3.8.  Legal Opinion of Seller's, DSRM's, DSRMNB's and the
                    Parents's Counsel.........................................21
    SECTION 6.3.9.  Good Standing Certificates................................21
    SECTION 6.3.10.  Performance Support Agreement............................21
    SECTION 6.3.11.  Blocked Account Agreements...............................21
  SECTION 6.4.  Condition Precedent to All Incremental Purchases..............22
  SECTION 6.5.  Conditions Precedent to All Purchases.........................22
    SECTION 6.5.1.  Representations and Covenants.............................22
    SECTION 6.5.2.  Other Documents...........................................22
ARTICLE VII:  SETTLEMENT PROCEDURES...........................................22
  SECTION 7.1.  Settlement Date...............................................22
  SECTION 7.2.  Application of Collections....................................22
    SECTION 7.2.1.  Application of Collections on Days That Are Not
                    Settlement Dates..........................................22
    SECTION 7.2.2.  Application of Collections on Settlement Dates............23
  SECTION 7.3.  Adjustments, Etc..............................................24
  SECTION 7.4.  Receivables Activity Report...................................25
ARTICLE VIII:  ADMINISTRATIVE AGENT AND COLLECTION AGENT......................25
  SECTION 8.1.  Appointment of Administrative Agent...........................25
    SECTION 8.1.1.  Replacement of Administrative Agent.......................25
  SECTION 8.2.  Appointment of Collection Agent...............................25
    SECTION 8.2.1.  Replacement of Collection Agent; Notification of 
                    Obligors..................................................26
ARTICLE IX:  REPRESENTATIONS AND WARRANTIES...................................27
 SECTION 9.1  Representations and Warranties of the Seller and the 
              Collection Agent................................................27
ARTICLE X:  COVENANTS.........................................................29
  SECTION 10.1.  Affirmative Covenants of the Seller and the Collection 
                 Agent........................................................29
  SECTION 10.2.  Reporting Requirements of the Seller.........................32
  SECTION 10.3.  Negative Covenants of the Seller and the Collection Agent....33
ARTICLE XI:  INDEMNIFICATIONS; INCREASED COSTS; TAX MATTERS...................35
  SECTION 11.1.  Indemnification by Seller of Purchasers, etc.................35
  SECTION 11.2.  Indemnification Due to Failure to Consummate Purchase........36
  SECTION 11.3.  Increased Costs..............................................36
  SECTION 11.4.  Increased Capital............................................37
  SECTION 11.5.  Taxes........................................................37
  SECTION 11.6.  Notices......................................................38
ARTICLE XII:  MISCELLANEOUS...................................................39
  SECTION 12.1.  Amendments, Etc..............................................39
  SECTION 12.2.  Notices, Etc.................................................39
  SECTION 12.3.  [Reserved]...................................................39
  SECTION 12.4.  No Waiver; Remedies..........................................39
  SECTION 12.5.  Binding Effect; Assignability................................39
  SECTION 12.6.  GOVERNING LAW................................................40
  SECTION 12.7.  Construction of the Agreement................................40
  SECTION 12.8.  No Proceedings...............................................40
  SECTION 12.9.  Confidentiality..............................................41
  SECTION 12.10.  Execution in Counterparts...................................41
  SECTION 12.11.  Severability Clause.........................................41
  SECTION 12.12.  SUBMISSION TO JURISDICTION; APPOINTMENT OF AGENT TO 
                  ACCEPT SERVICE OF PROCESS...................................41
                                    EXHIBITS
Exhibit A      Form of Notice for Initial and Incremental Purchases
Exhibit B-1    Form of Notice of Election Not to Make Reinvestment Purchase
Exhibit B-2    Form of Notice of Election to Suspend Purchases and of Payment of
               Reduction in Investment
Exhibit C      Form of Membership Agreement
Exhibit D      Form of Blocked Account Agreement
Exhibit E      Form of Receivables Activity Report
Exhibit F      Forms of Cardholder Agreements
                                    SCHEDULES
Schedule A     Credit and Collection Policies
Schedule B     List of Blocked Account Banks
Schedule C     List of Addresses for the Seller, DSRM and DSRMNB
         This CREDIT CARD RECEIVABLES  PURCHASE  AGREEMENT (this "Agreement") is
entered  into as of March 29,  1999,  by and among  COYOTE  FUNDING,  L.L.C.,  a
Delaware limited liability company, as the Seller, DIAMOND SHAMROCK REFINING AND
MARKETING  COMPANY,  as the Collection Agent, ASSET  SECURITIZATION  COOPERATIVE
CORPORATION,  as a Purchaser,  and  CANADIAN  IMPERIAL  BANK OF  COMMERCE,  as a
Purchaser and as the Administrative Agent.
                             ARTICLE I: DEFINITIONS
         As used in this Agreement, the following terms shall have the specified
meanings and shall  include in the singular  number the plural and in the plural
number the singular:
         "Account"  means a credit card account  established  and  maintained by
DSRMNB in and pursuant to a Cardholder  Agreement  between DSRMNB and an Obligor
or Obligors or by DSRM in and  pursuant to a Cardholder  Agreement  between DSRM
and an Obligor or Obligors.
         "Acquired Account" means any Account acquired by DSRMNB or DSRM (or any
of their successors) following the date hereof which arose from or in connection
with the business of any Person that is not a subsidiary of the Parent as of the
date hereof.
         "Administration  Fee" means the  percentage  used to determine  the fee
payable by the Seller to the Back-Stop Purchaser, as described in Section 5.1.5.
         "Administrative Agent" means Canadian Imperial Bank of Commerce and any
replacement thereof under Section 8.1.1.
         "Affected Party" has the meaning specified in Section 11.4.
         "Affiliate"  means, as to any Person, any other Person that directly or
indirectly,  is in control of, is controlled by or is under common  control with
such Person or is a director or officer of such Person.
         "Aggregate  Ownership  Interest"  means  at  any  time,  the  Ownership
Interests of all Purchasers at such time.
         "Agreement" means this Credit Card Receivables  Purchase Agreement,  as
it may be amended,  restated,  supplemented  or otherwise  modified from time to
time.
         "Alternative Rate" for any Settlement Period means an interest rate per
annum  equal to the sum of (a)  the LIBO Rate (Reserve Adjusted) plus (b) 0.50%;
provided, however, that (i) in  the case  of any Settlement  Period of less than
one month, the  LIBO Rate  (Reserve Adjusted) under  clause (a)  above  shall be
calculated as if such  Settlement Period has a duration of one  month unless the
Administrative  Agent and the Collection  Agent agree in writing  to a different
rate; (ii)  if it  shall become unlawful for CIBC to obtain funds in  the London
interbank market  in order  to make, fund or maintain  any Purchase hereunder or
deposits in dollars (in the applicable amounts) are not being offered by CIBC in
the London  interbank market then  the "Alternative  Rate"  for  any  Settlement
Period shall be calculated using an interest rate per  annum equal  to  the Base
Rate;  and  (iii) following the  occurrence of  an  Event  of  Liquidation,  the
"Alternative Rate"  for each  Payment Period shall  be the sum of the applicable
interest rate per  annum determined  pursuant to provisions set forth above plus
2.0% per annum.
         "Back-Stop Purchaser" means CIBC and its successors and assigns.
         "Base Rate"  means,  on any date,  a  fluctuating  rate of interest per
annum equal to the higher of (a) the Prime Rate and (b) the  Federal  Funds Rate
plus 1.0%.
         "Blocked Account" means any blocked account  established in the name of
the Seller to which the Collection Agent shall deposit Collections in accordance
with the terms of this Agreement.
         "Blocked Account  Agreement" means the agreement in the form of Exhibit
D  hereto  executed  among  the  Seller,  DSRM,  DSRMNB  (with  respect  to  the
Participation Interest), the Administrative Agent and a Blocked Account Bank.
         "Blocked Account Bank" means any bank listed on Schedule B.
         "Business  Day" means a day other  than a  Saturday  or Sunday on which
each of the Conduit  Purchaser,  the  Back-stop  Purchaser,  the  Administrative
Agent, the Collection Agent and the Seller is open for business.
         "Cardholder  Agreement"  means the agreement (and related  application)
for a credit card account between any Obligor or Obligors and DSRMNB or DSRM, as
applicable,  in  substantially  the form of one of the forms attached  hereto as
Exhibit F as each agreement may be amended,  modified or otherwise  changed from
time to time in accordance with the Credit and Collection Policies.
         "Charge-off" means any Receivable:
         (1)  all or any portion of which remains unpaid more than 180 days past
              the date on which it was due; or
         (2)  that has  been or  should  have  been  charged-off  in  conformity
              with the then current Credit and Collection Policies.
         "Charge-off Ratio" means, as of any date of determination,  a fraction,
expressed as a percentage,  the numerator of which is the aggregate  outstanding
balance  of all  Receivables  that  became  Charge-offs  during  the month  most
recently  ended,  and the  denominator  of  which is the  aggregate  outstanding
balance of all  Receivables  on the last Business Day of the month most recently
ended.
         "CIBC" means Canadian Imperial Bank of Commerce.
         "Code" means the Internal Revenue Code of 1986, as amended.
         "Collection"  means any amount  paid by an  Obligor or any other  party
with respect to a  Receivable  or other form of payment in  accordance  with the
Cardholder Agreement in effect from time to time.
         "Collection  Agent" means DSRM or any replacement thereof under Section
8.2.1.
         "Collection  Agent Fee" means the percentage  used to determine the fee
payable by the  Purchasers  to the  Collection  Agent,  as  described in Section
5.1.4.
         "Commencement  Date" means the date  following the Conduit  Purchaser's
election not to make any further purchases under this Agreement provided that no
Event of Liquidation has occurred.
         "Conduit Lender" has the meaning specified in Section 11.3.
         "Conduit Purchaser" means Asset Securitization Cooperative Corporation,
a California cooperative corporation, and its successors and assigns.
         "Credit and  Collection  Policies"  means the policies  and  procedures
relating  to the  operation  of the credit  card  business  of DSRM and  DSRMNB,
respectively,  including,  without  limitation,  the policies and procedures for
determining  the   creditworthiness   of  potential  and  existing  credit  card
customers,  and  relating  to  the  maintenance  of  credit  card  accounts  and
collection of credit card receivables, as attached hereto as Schedule A, as such
policies and procedures  may be amended or otherwise  modified from time to time
in strict compliance with this Agreement.
         "Credit  Card   Receivables  Sale  Agreement"  means  the  Credit  Card
Receivables Sale Agreement of even date herewith between DSRM and the Seller, as
amended, restated, supplemented or otherwise modified from time to time.
         "Credit Facilities" means each of the committed loan facilities,  lines
of credit, letters of credit, surety bonds and other forms of credit enhancement
available to the Conduit Purchaser to support the Conduit Purchaser's commercial
paper and which are not Liquidity Facilities.
         "Days Sales  Outstanding"  means,  as of any date of  determination,  a
number  of days  equal  to the  product  of (a) the  number  of days in the most
recently  ended  month  and (b) (i) the  aggregate  outstanding  balance  of all
Receivables (other than Finance Charge Receivables) as of the end of such month,
divided  by (ii)  the  aggregate  increase  in the  outstanding  balance  of all
Receivables   during  such  month,  but  excluding   increases   resulting  from
newly-arising Finance Charge Receivables.
         "Default  Ratio" means,  as of any date of  determination,  a fraction,
expressed as a percentage,  the numerator of which is the aggregate  outstanding
balance of all Receivables  that became Defaulted  Receivables  during the month
most recently ended,  and the denominator of which is the aggregate  outstanding
balance of all  Receivables  on the last Business Day of the month most recently
ended.
         "Defaulted  Account" means an Account as to which,  consistent with the
Credit and Collection Policies,  the Collection Agent charged off Receivables in
such Account as uncollectible.
         "Defaulted Receivable" means any Receivable:
         (1)  all or any portion  of which remains unpaid more than 90 days past
              the date on which it was due; or
         (2)  that is owed by an Obligor that is in bankruptcy,  reorganization,
              insolvency or similar proceedings.
         "Delinquency Ratio" means, as of any date of determination, a fraction,
expressed as a percentage,  the numerator of which is the aggregate  outstanding
balance of all Receivables that were unpaid for more than 60 days but fewer than
91 days  past the dates on which  they were due as of the end of the month  most
recently  ended,  and the  denominator  of  which is the  aggregate  outstanding
balance of all Receivables as of such date.
         "Diamond Shamrock Entity" has the meaning specified in Section 10.1(n).
         "DSRM"  means  Diamond  Shamrock  Refining  and  Marketing  Company,  a
Delaware corporation, and its successors.
         "DSRMNB" means DSRM  National Bank, a  national banking association and
its successors.
         "DSRMNB  Participation   Agreement"  means  that  certain  Amended  and
restated  Participation  Agreement  dated as of May 1, 1997,  between DSRMNB and
DSRM,  as amended,  restated,  supplemented  or otherwise  modified from time to
time.
         "DSRM  Servicing  Agreement"  means the Data  Processing  and Servicing
Agreement  dated as of September 13, 1996,  between DSRMNB and DSRM, as amended,
restated, supplemented or otherwise modified from time to time.
         "Eligible Account" means an Account:
         (1)  that is not an Acquired Account);
         (2)  that is payable in United States dollars;
         (3)  the Obligor  of which has  its most  recent billing address in the
United States or its territories or possessions;
         (4)  that  DSRM  or DSRMNB, as  applicable, has  not  classified on its
records as counterfeit, canceled, fraudulent, stolen or lost;
         (5)  that  would  not  be  deemed  a  Defaulted Account upon conveyance
of the related Receivables to the Purchaser; and
         (6)  that arises under a Cardholder Agreement with respect to  which no
Receivable or  any interest therein has previously been sold, assigned or trans-
ferred to  any  Person other than  a  Purchaser pursuant to this Agreement, DSRM
pursuant to the  DSRMNB Participation Agreement or the  Seller  pursuant  to the
Credit Card Receivables Sale Agreement.
         "Eligible Receivable" means any Receivable:
         (1)  which has arisen under an Eligible Account;
         (2)  which is not unpaid for more  than 60 days past  the date on which
              it was due;
         (3)  which is payable only in U.S. dollars;
         (4)  which is not a Defaulted Receivable or a Charge-off;
         (5)  which is not subject to any dispute, claim, defense or offset;
         (6)  which is an  "account"  or  a "general   intangible"  within  the
              meaning  of the  Uniform Commercial Code of the State  in which is
              located the Seller's place of business or, if  the Seller has more
              than one place of business, the Seller's chief executive office;
         (7)  which  arose in the ordinary course of business of DSRMNB or DSRM,
              as applicable, from a bona fide sale  of merchandise  or insurance
              or  the  rendering  of  services  accepted by  the Obligor of that
              Receivable and was acquired from DSRM  pursuant to the Credit Card
              Receivables Sale Agreement;
         (8)  in which the  applicable Purchaser  shall, upon the Purchase of an
              Ownership Interest therein, acquire  good and marketable title  to
              the  Ownership Interest  therein,  free and  clear  of  all liens,
              security interests and encumbrances other than any in favor of any
              Purchaser that may be created under this Agreement;
         (9   that is the  legal, valid  and binding payment  obligation  of the
              Obligor thereon;
         (10) which together with  the Cardholder Agreement related thereto does
              not  contravene or  violate in  any respect  any  laws,  rules  or
              regulations  applicable  thereto (including,  without  limitation,
              laws, rules, and regulations relating to  usury, truth in lending,
              consumer credit  protection, fair  credit billing, fair credit re-
              porting,  equal  credit  opportunity  and  fair  debt   collection
              practices and privacy);
         (11) which is  not subject to any restrictions on the transfer, assign-
              ability or sale thereof;
         (12) which satisfies  in all material respects all applicable  terms of
              the Credit and Collection Policies; and
         (13) which  the Administrative  Agent has  not designated,  upon thirty
              days' notice to  the Seller, as  no longer  eligible for  transfer
              hereunder.
         "ERISA" means the Employee  Retirement  Income Security Act of 1974 and
the rules and regulations thereunder, as amended from time to time.
         "ERISA   Affiliate"  means  any  trade  or  business  (whether  or  not
incorporated) that is treated as a single employer with the Seller under Section
414 of the Code.
         "Event of Liquidation" means any one or more of the following events:
         (a)  the  Parent's   long-term  unsecured  private debt  or public debt
              rating  falls  below   BBB- from S&P or  Baa3  from  Moody's;  the
              Performance  Support  Agreement  shall cease  to be in  full force
              and effect;  or  the  Parent  shall have  disaffirmed or otherwise
              repudiated its obligations under the Performance Support Agreement
              or  notified  the  Administrative Agent  or  any  Purchaser of its
              intention to do so;
         (b)  Any of  DSRMNB , DSRM or the  Seller  shall no longer be a wholly-
              owned direct or indirect subsidiary of the Parent;
         (c)  the Seller shall cease to be a member of the Conduit Purchaser;
         (d)  the Seller or the Collection Agent (if it is DSRM or any   Diamond
              Shamrock Entity) shall fail to make any payment when due to any of
              the Purchasers under any of the Sale Documents;
         (e)  any  Diamond  Shamrock  Entity  shall breach any representation or
              warranty  or  fail  to perform or  observe  any term , covenant or
              agreement applicable to it which is contained in any Sale Document
              to which it is a party other than one covered by clause (d) above,
              and such breach or failure  is likely to have a  material  adverse
              effect on the collectibility of the Receivables;
         (f)  (i) the Seller, DSRM, DSRMNB or the Parent shall be in bankruptcy,
              reorganization,  insolvency or  similar  proceedings  or  (ii) any
              other Diamond  Shamrock Entity shall be in bankruptcy, reorganiza-
              tion,  insolvency or  similar  proceedings and any such proceeding
              has had or can reasonably be  expected to have  a material adverse
              effect on  the collectibility  of the  Receivables, the ability of
              any of the Diamond Shamrock  Entities to  perform their respective
              obligations under the Sale Documents  or the legality, validity or
              enforceability of any Sale Document or of the Ownership Interest;
         (g)  the Aggregate Ownership  Interest shall  exceed the Maximum Owner-
              ship Interest and the Seller shall have failed to make the payment
              required under Section 3.3;
         (h)  on any Settlement Date the Delinquency Ratio shall be greater than
              the Historical Delinquency Ratio;
         (i)  on any Settlement Date the Days Sales Outstanding exceeds 65 days;
         (j)  on any Settlement Date  the Default  Ratio shall  be  greater than
              5.25%;
         (k)  on any  Settlement Date the Charge-off Ratio shall be greater that
              2.75%;
         (l)  the  occurrence  of any  event which  has had or can reasonably be
              expected  to  have a  material adverse effect  on (i) the collect-
              ibility of  the Receivables, or (ii) the legality, validity or en-
              forceability of any Sale Document or of the Ownership Interest; or
         (m)  The  Parent, DSRM or  the Seller shall default in the payment when
              due (whether at scheduled maturity, required prepayment, demand or
              otherwise) with respect to any indebtedness of the Parent, DSRM or
              the Seller,  the  outstanding principal  amount of which indebted-
              ness, in the aggregate, is $25 ,000, 000 or higher; or the Parent,
              DSRM or the Seller shall default in  the performance or observance
              of any  other obligation or condition with respect to any such in-
              debtedness or any other event shall occur or  condition exist, if,
              as a result, such indebtedness has become or can then  be declared
              to be due and payable prior to its stated maturity other than as a
              result of a regularly scheduled payment.
         "Extension Date" means the last day of each calendar quarter commencing
June 30, 1999.
         "Facility  Limit" means the excess of  $250,000,000  over the aggregate
outstanding  "Investment" under and as defined in the Trade Receivables Purchase
Agreement;  provided,  however,  that on and after  the  Termination  Date,  the
"Facility Limit" shall equal the outstanding Investment from time to time.
         "Federal Funds Rate" means, for any period, a fluctuating interest rate
per annum equal for each day during such period to (a) the  weighted  average of
the rates on overnight  Federal funds  transactions  with members of the Federal
Reserve System arranged by Federal funds brokers, as published for such day (or,
if such day is not a Business Day, for the immediately  preceding  Business Day)
by the Federal Reserve Bank of New York, or (b) if such rate is not so published
for any day which is a Business Day, the average of the  quotations for such day
on such  transactions  received by the  Administrative  Agent from three Federal
funds brokers of recognized standing selected by it.
         "Fee Letter" means the letter  agreement of even date herewith  between
the Administrative Agent and the Seller relating to fees.
         "Finance  Charge  Collections"  means,  with respect to any Credit Card
Receivable,  that portion of Collections  attributable to amounts collected from
Obligors in respect of Periodic Finance Charges and Service Charges.
         "Finance Charge  Receivables" means all amounts billed to an Obligor on
an Account in respect of Periodic  Finance Charges and Service Charges that have
not yet been paid.
         "Historical  Delinquency Ratio" means, as of any date of determination,
a  percentage  equal to the  product  of (i) 1.50 and (ii) the  greatest  of the
fractions determined for each month during the period of 12 months preceding the
date of  determination  obtained by  dividing  (A) the  aggregate  amount of all
Receivables  that were  unpaid for more than 60 days but fewer than 91 days past
the dates on which  they  were due as at the end of each  such  month by (B) the
outstanding balance of Receivables as at the end of each such month.
         "Incremental  Purchase"  means  any  Purchase  (other  than an  Initial
Purchase) which causes the amount of the Investment to increase.
         "Initial  Purchase"  means,  with  respect  to a  Purchaser,  the first
Purchase by such Purchaser under this Agreement.
         "Investment" means the sum of:
         (1)  the aggregate amount of cash paid by  the Purchasers to the Seller
              for  their respective  Initial Purchases  and all Incremental Pur-
              chases, less the amount of all Collections  received  and  applied
              pursuant to  Section 7.2.2(b)(ii)(A) and of  all payments  made by
              the Seller and applied under Sections 3.3 6.2(c) and 7.3; and
         (2)  any amounts owed by the Seller to the Purchasers under Article XI.
         "LIBO Rate"  means,  for any  Settlement  Period,  the rate of interest
determined by the  Administrative  Agent to be the average (rounded upwards,  if
necessary,  to the  nearest  1/16 of 1%) of the rates  per  annum at which  U.S.
dollar deposits in immediately  available funds are offered by CIBC two Business
Days prior to the  beginning  of such  Settlement  Period to prime  banks in the
interbank  eurodollar  market  as at or about  10:00  A.M.  New York  time,  for
delivery on the first date of such Settlement Period, for a one month period and
in an amount equal to the amount of the Investment to be funded at the LIBO Rate
as of such second Business Day prior to the beginning of such Settlement Period.
         "LIBO Rate (Reserve Adjusted)" means,  relative to any Purchase for any
Settlement  Period,  a rate per annum  (rounded  upwards,  if necessary,  to the
nearest 1/16 of 1%) determined pursuant to the following formula:
                  LIBO Rate                 =        LIBO Rate
                                                     ----------
                  (Reserve Adjusted)                 1-LIBOR
                                                     Reserve
                                                     Percentage
The  Administrative  Agent shall determine the LIBO Rate (Reserve  Adjusted) for
each  Settlement  Period  applicable  to any  Purchase  and  promptly  provide a
certificate  of such  calculation  to the Seller  thereof  (which  determination
shall, in the absence of manifest error, be conclusive on the Seller).
         "LIBOR Reserve Percentage" means, relative to each Settlement Period, a
percentage  (expressed  as a decimal)  equal to the daily  average  during  such
Settlement  Period of the  percentages in effect on each day of such  Settlement
Period,  as prescribed by the Board of Governors of the Federal  Reserve  System
(or any successor  thereof) for  determining  the maximum  reserve  requirements
applicable to "Eurocurrency  Liabilities"  pursuant to Regulation D or any other
applicable  regulation which prescribes reserve requirements  applicable to such
"Eurocurrency Liabilities".
         "Liquidity  Facilities"  means each of the committed  loan  facilities,
lines of credit and other  financial  accommodations  available  to the  Conduit
Purchaser to support the liquidity of the Conduit  Purchaser's  commercial paper
notes and medium term notes.
         "Maximum Ownership Interest" means 100%.
         "Moody's"  means  ▇▇▇▇▇'▇ Investors  Service, Inc., and  any  successor
thereto.
         "Obligor"  means any  Person  that is  obligated  to make  payment on a
Receivable pursuant to a Cardholder Agreement.
         "Operating  Expense Fee" means the percentage used to determine the fee
payable by the Seller to the Conduit Purchaser, as described in Section 5.1.3.
         "Other Taxes" has the meaning specified in Section 11.5(b).
         "Ownership  Interest"  means,  at any time,  the  undivided  percentage
ownership  interest  of a  Purchaser  in  the  Receivables  Assets  and  related
Collections as determined pursuant to Section 3.1(a).
         "Parent" means  Ultramar Diamond  Shamrock Corporation, a Delaware cor-
poration or any successor.
         "Participating Receivable" means  each Receivable subject to the Parti-
cipation Interest.
         "Participation  Interest" means the 100% participation interest of DSRM
under the DSRMNB  Participation  Agreement in all Receivables under all Accounts
established and maintained by DSRMNB.
         "PBGC" means the Pension Benefit Guaranty Corporation and any successor
thereto.
         "Performance Support Agreement" means the Performance Support Agreement
of even date  herewith  executed  by the  Parent in favor of the  Administrative
Agent and the  Purchasers,  as  amended,  restated,  supplemented  or  otherwise
modified from time to time.
         "Periodic Finance Charges" shall have with respect to any Account,  the
meaning  specified in the  Cardholder  Agreement  applicable to such Account for
finance charges or any similar term.
         "Person" means any  corporation,  natural person,  firm, joint venture,
partnership,  limited liability  company,  trust,  unincorporated  organization,
enterprise, government or any department or agency of any government.
         "Plan" means each employee  benefit plan (as defined in Section 3(3) of
ERISA)  currently  sponsored,  maintained or contributed to by the Seller or any
ERISA  Affiliate or with respect to which the Seller or any ERISA  Affiliate has
any liability.
         "Prime Rate" means the rate announced by CIBC from time to  time as its
prime rate in the United States, such rate to change as and when such designated
rate changes.  The Prime Rate is not intended  to be the lowest rate of interest
charged by CIBC in connection with extensions of credit to debtors.
         "Purchase"  means any purchase by a Purchaser of an Ownership  Interest
from the Seller under this  Agreement,  and includes  such  Purchaser's  Initial
Purchase,  any  Incremental  Purchase  and  any  Reinvestment  Purchase  by such
Purchaser.
         "Purchase  Discount"  means the percentage used to determine the amount
payable by the Seller to the Purchasers to cover the Purchasers' cost of funding
the Purchases, as described in Section 5.1.1.
         "Purchase  Premium" means the  percentage  used to determine the amount
payable by the Seller to the Purchasers, as described in Section 5.1.2.
         "Purchaser"  means  each  of  the Conduit  Purchaser  and the Back-Stop
Purchaser.
         "Receivable" means the obligation of an Obligor under an Account to pay
for merchandise  sold or services  rendered,  and includes the rights of DSRMNB,
DSRM or the Seller, as applicable, to payment of any interest,  Periodic Finance
Charges or Service Charges and in the merchandise (including returned goods) and
contracts relating to such Receivable,  all security  interests,  guaranties and
property  securing  or  supporting  payment  of such  Receivable,  all books and
records  relating  to the  Receivables,  all  rights of the  Seller or DSRM,  as
applicable,  under the  Credit  Card  Receivables  Sale  Agreement,  the  DSRMNB
Participation  Agreement  and the Servicing  Agreement,  and all proceeds of the
foregoing.
         "Receivables Activity Report" means the report in the form of Exhibit E
hereto to be provided by the  Collection  Agent to the  Administrative  Agent in
accordance with Sections 6.4 and 7.4 of this Agreement.
         "Receivables Assets" means  all Receivables (other  than  Participating
Receivables) and the Participation Interest.
         "Receivables Systems" has the meaning specified in Section 9.1(p).
         "Reinvestment Purchase" means any Purchase made with Collections.
         "Reserve"  means,  as of any date, an amount equal to the Investment on
such date multiplied by the greater of (a) 10% and (b) the percentage equivalent
of a  fraction,  the  numerator  of which  equals the sum of the items set forth
below (each expressed as a percentage), and the denominator of which equals 100%
minus such sum:
         (1)  the product  of (a) 2.00 and (b) the highest monthly Default Ratio
              for any of the 12 months preceding such date;
         (2)  the Collection Agent Fee; and
         (3)  the Yield Reserve Percentage.
         "S&P" means Standard & Poor's, a division of The ▇▇▇▇▇▇-▇▇▇▇ Companies,
Inc., and any successor thereto.
         "Sale Documents" means this Agreement, the Credit Card Receivables Sale
Agreement,  the Blocked Account Agreements,  the DSRMNB Participation Agreement,
the DSRM  Servicing  Agreement,  the  Exhibits  hereto and  thereto to which the
Seller is a party and all other certificates,  agreements and documents executed
from time to time by the Seller in connection with the transactions contemplated
in this Agreement.
         "Seller" means Coyote Funding,  L.L.C.,  a Delaware  limited  liability
company, and its successors and permitted assigns.
         "Service Charges" means with respect to any Receivable,  fees specified
in the related Cardholder  Agreement applicable to the related Account as annual
membership or annual fees, late charges,  late payment  charges,  returned check
fees,  overlimit  charges or default  charges or any  similar  terms  other than
Periodic Finance Charges.
         "Settlement  Date" means any date,  as described in Section 7.1 of this
Agreement, on which the Collection Agent is required to remit specified payments
to the Purchasers.
         "Settlement  Period" means the period from (and including) a Settlement
Date (or, in the case of the initial  Settlement  Period  under this  Agreement,
from  the  date  of the  earliest  Initial  Purchase)  to  (but  excluding)  the
immediately succeeding Settlement Date.
         "Taxes" has the meaning specified in Section 11.5(a).
         "Termination  Date"  means the earlier of (a) March 27,  2000,  as such
date may be extended  pursuant to Section 2.2 and (b) the date on which an Event
of Liquidation occurs.
         "Trade  Receivables  Purchase  Agreement"  means the Trade  Receivables
Purchase  Agreement of even date herewith  among the Seller,  DSRM,  the Conduit
Purchaser,  the Back-Stop  Purchaser and the Administrative  Agent relating to a
portfolio of trade  receivables  originated by certain  Affiliates of the Seller
and serviced by DSRM.
         "Unused Facility Fee" has the meaning specified in Section 5.2.
         "Year 2000 Compliant" has the meaning specified in Section 9.1(p).
         "Yield  Reserve  Percentage"  means,  for any  Settlement  Period,  the
greatest  Yield  Reserve  Shortfall  Percentage  in any of the three  Settlement
Periods immediately preceding such date times the fraction 104/360.
         "Yield Reserve Shortfall  Percentage" means, for any Settlement Period,
the  excess,  if  any,  of (A) the sum of (i) the  Purchase  Premium,  (ii)  the
Purchase  Discount  multiplied by 1.3, (iii) the Operating  Expense Fee and (iv)
the Collection  Agent Fee, over (B) the ratio,  expressed as a percentage of (i)
the aggregate  Finance Charge  Collections for such Settlement Period divided by
(ii) the ending amount of Receivables for such Settlement Period.
                          ARTICLE II: PURCHASE FACILITY
         SECTION 2.1. Purchase Facility.  On the terms and conditions  described
in this Agreement,  the Conduit Purchaser may, in its sole discretion,  purchase
an Ownership  Interest in Receivables  Assets offered for sale from time to time
by the Seller.  The  Back-Stop  Purchaser,  if so requested by the Seller,  will
purchase  during  the  period on and  after the  Commencement  Date  until  (but
excluding) the  Termination  Date, an Ownership  Interest in Receivables  Assets
offered for sale from time to time (provided  that no Event of  Liquidation  has
occurred and is continuing) by the Seller.  Nothing herein shall be construed as
constituting  a  commitment  on the  part of the  Seller  to  sell an  Ownership
Interest  in  Receivables  Assets  or on  the  Conduit  Purchaser  to  make  any
Purchases.  In no event shall the Back-Stop  Purchaser's share of the Investment
exceed the excess of the Facility Limit over the  outstanding  Investment of the
Conduit Purchaser's Ownership Interest.
         SECTION 2.2. Extension or Acceleration of the Termination Date.
         (a) Prior to the occurrence of an Event of Liquidation, the Seller may,
on a quarterly  basis at least 15 days prior to any Extension  Date,  request by
notice to the Back-Stop  Purchaser  that the date specified in clause (a) of the
definition  of  "Termination  Date"  be  extended  (any  such  request  being an
"Extension  Notice").  The  Back-Stop  Purchaser  shall not have a commitment or
obligation to extend the Termination  Date. If the Back-Stop  Purchaser,  in its
sole  discretion,  agrees to accept  any  request  on the part of the  Seller to
extend  the  Termination  Date,  it shall so advise the Seller in writing by not
later  than  five  Business  Days  prior to such  Extension  Date.  In the event
Back-Stop Purchaser shall fail to advise the Seller in response to any Extension
Notice,  such request for extension shall be deemed to have been declined.  Upon
acceptance in writing by the Back-Stop  Purchaser of any request set forth in an
Extension Notice,  the Termination Date shall thereupon become the date which is
360 days following  such  Extension  Date. As of no date during the term of this
Agreement shall the period from such date to the Termination Date then in effect
exceed a period of 360 days.
         (b)  Notwithstanding the  provisions of Section  2.2(a), the Seller may
accelerate the  Termination Date by notifying the Purchasers and the Administra-
tive Agent to such effect. Such notice shall be given by no later than 1:00 p.m.
New York time  on the  third Business  Day preceding  the date  on which  Seller
intends the Termination Date to occur.
                     ARTICLE III: SALE OF OWNERSHIP INTEREST
         SECTION 3.1.  Determination of Ownership Interest.
         (a)  When a  Purchaser accepts an offer from the Seller to  purchase an
interest in Receivables Assets, such Purchaser shall have acquired,  in exchange
for the purchase price paid, an undivided  percentage  ownership interest in the
Receivables Assets and any Collections  relating to the Receivables  Assets. The
undivided  percentage  interest of a  Purchaser  in the  Receivables  Assets and
Collections  shall  be  referred  to  in  this  Agreement  as  such  Purchaser's
"Ownership  Interest".  The Ownership  Interests of all of the Purchasers on any
date shall be referred to herein as the "Aggregate  Ownership  Interest" on such
date,  and,  except as provided in paragraphs  (b) and (c) of this  Section,  is
equal to the following fraction (expressed as a percentage):
                       I + R
                     ---------
                        ER
where:
         I   =  the Investment on such date
         R   =  the Reserve on such date
         ER  =  the outstanding  balance of  all Eligible Receivables  excluding
                Finance Charge Receivables on such date
The  Ownership  Interest  will change  from time to time,  except as provided in
paragraphs  (b) and (c) of this  Section,  whenever the  Investment,  Reserve or
Eligible Receivables changes.
         (b)  During  any  period  when the  Investment  is being  reduced,  the
Aggregate Ownership Interest will remain fixed at the percentage in effect as of
the close of business on the Business Day immediately preceding the commencement
of that period.
         (c) The Aggregate  Ownership Interest in the Receivables Assets will be
reduced to zero when the Purchasers receive the following amounts:
         (1)  their respective shares of the Investment;
         (2)  as  further provided  in  Section  7.2.2(b)(i),  their  respective
              shares of the accrued and unpaid portion of the Purchase Discount,
              Purchase Premium,  Unused  Facility  Fee, Collection Agent Fee (if
              not payable to a  Diamond Shamrock Entity), Operating  Expense Fee
              and Administration Fee; and
         (3)  all  other  fees, expenses  and  amounts payable to the Purchasers
              under this Agreement.
When the Aggregate Ownership Interest in the Receivables is reduced to zero, the
Purchasers shall not be entitled to receive any additional  Collections from the
Receivables Assets.
         (d) The  Administrative  Agent shall  maintain books and records (which
shall be presumed  accurate  absent  manifest  error)  reflecting the respective
shares of the  Purchasers in the  Aggregate  Ownership  Interest  based upon the
aggregate  amount of cash paid by each  Purchaser  to the Seller for the Initial
Purchase by such Purchaser and all Incremental Purchases by such Purchaser, less
the  amount  of  all  Collections  received  and  applied  pursuant  to  Section
7.2.2(b)(ii)(A)  and of all  payments  made  by the  Seller  and  applied  under
Sections 3.3 6.2(c) and 7.3. The  Administrative  Agent shall  allocate  amounts
paid by the Seller  hereunder  in respect of the  Aggregate  Ownership  Interest
accordingly,  taking into account the differing rates for  determining  Purchase
Discount for each Purchaser.
         (e) Subject to the provisions of Section  8.2(d),  upon any Purchaser's
purchase of an Ownership Interest, the Administrative Agent shall be entitled to
(i)  endorse  all  drafts,  checks and other  forms of payment on account of the
Receivables  and to  settle,  adjust  and  forgive  any  amounts  payable on the
Receivables   and  (ii)  exercise  all  other  incidents  of  ownership  in  the
Receivables Assets.
         (f) The Seller  hereby  assigns to the  Administrative  Agent,  for the
benefit  of the  Purchasers,  all rights of the  Seller  against  DSRM under the
Credit Card  Receivables  Sale Agreement and agrees that (i) the  Administrative
Agent and the  Purchasers  shall be third party  beneficiaries  of the  Seller's
rights under the Credit Card  Receivables  Sale Agreement,  (ii) the Seller will
enforce its rights under the Credit Card Receivables Sale Agreement on behalf of
the Administrative Agent and the Purchasers and (iii) the Administrative  Agent,
on behalf of the  Purchasers  shall be entitled to enforce  such rights  against
DSRM if the Seller  does not  enforce  such  rights  following  notice  from the
Administrative Agent, as if the Administrative Agent and the Purchasers had been
parties to the Credit Card Receivables Sale Agreement.
         SECTION 3.2. Frequency of Determining Aggregate Ownership Interest. The
Collection  Agent  shall  determine  or be deemed  to  determine  the  Aggregate
Ownership  Interest and report it to the  Administrative  Agent at the following
times:
         (a)  on the date of each Initial Purchase;
         (b)  on each Settlement Date;
         (c)  on the date of each Incremental Purchase;
         (d)  on the Business Day immediately  preceding any period during which
the Investment is being reduced;
         (e)  on the Business Day on which the Investment ceases being reduced;
         (f)  when the  Collection Agent has reason to believe  that the Maximum
Ownership Interest has been exceeded; and
         (g)  at the request of any Purchaser.
         SECTION  3.3.  Maximum  Ownership  Interest.  If during any  Settlement
Period the Aggregate  Ownership  Interest at the end of such  Settlement  Period
exceeds the Maximum  Ownership  Interest,  the Seller shall  immediately  make a
payment to the Collection Agent in an amount  sufficient to reduce the Aggregate
Ownership  Interest  to the  Maximum  Ownership  Interest  but not to exceed the
portion of Collections  paid to Seller during such Settlement  Period.  Any such
payment will be used to reduce the  Investment  and shall be applied  ratably to
the Ownership  Interests of the Purchasers  according to their respective shares
of the Investment.
         SECTION 3.4.  Blocked  Accounts and  Collections.  The Collection Agent
shall identify and segregate all Collections  within 24 hours of receipt thereof
by the Collection  Agent, the Seller or DSRMNB,  as the case may be, and deposit
such Collections,  on a daily basis, in the form received,  to a Blocked Account
Bank for deposit into a Blocked  Account.  In  furtherance  of the intent of the
parties  described  in Section 3.1 above,  and in order to secure the prompt and
complete  payment,  observance  and  performance of this  Agreement,  the Seller
hereby assigns and pledges to the  Administrative  Agent, for the benefit of the
Purchasers,  and grants a security  interest  thereto in, all of Seller's  right
title and interest in each Blocked Account,  including,  without limitation, any
deposits or sums at any time held in each Blocked  Account.  Upon the occurrence
and during the continuation of an Event of Liquidation, the Administrative Agent
may take control of the Blocked Accounts, and either the Administrative Agent or
any  Purchaser  may notify the Obligors  that the  Receivables  Assets have been
assigned to the Purchasers,  and in its own name and/or the name of DSRMNB, DSRM
and/or the Seller, as applicable,  demand,  collect,  receive,  receipt for, ▇▇▇
for,  compound  and  discharge  any or all amounts due or to become due thereon,
and,  in the  Administrative  Agent's or  Purchasers'  discretion  (and  without
creating any obligation of the  Purchasers or  Administrative  Agent),  file any
claim or take any other action or proceeding which the  Administrative  Agent or
the Purchasers may deem necessary or appropriate to protect and realize upon the
Receivables Assets.
                           ARTICLE IV: PURCHASE PRICE
         The purchase price payable by a Purchaser for its Ownership Interest in
the Receivables and any Collections shall be comprised of a cash component and a
deferred payment component.
         SECTION 4.1.  Determination of Cash Component of Purchase Price. When a
Purchaser  accepts an offer from the Seller to make a Purchase,  such  Purchaser
will pay the following amounts in cash to the Seller:
         (a)  for any Initial and   any Incremental Purchases, the amount speci-
              fied in the notice required to  be  delivered by  the Seller under
              Section 6.2(a); or
         (b)  for  a  Reinvestment  Purchase, the amount obtained by multiplying
              (i) the dollar amount of the  Collections  received on the date of
              such  Purchase by (ii) such Purchaser's Ownership Interest on that
              date, and subtracting from such amount any  amounts  then  payable
              to the  Administrative  Agent  under  Section 7.2.2(b)(i);
provided that the payment of any amount  described in (a) or (b) above would not
cause (and such amount shall be reduced so as not to cause) either:
         (1)  the Investment at any time to exceed the Facility Limit; or
         (2)  the  Aggregate Ownership Interest to exceed the  Maximum Ownership
              Interest.
         SECTION 4.2.  Determination of Deferred  Payment  Component of Purchase
Price. Upon and after the reduction of the Aggregate  Ownership Interest to zero
as described in Section  3.1(c),  all  Collections or other cash received by the
Administrative  Agent or any Purchaser on account of Receivables  Assets and the
interest  of the  Purchasers  therein and all  Receivables  Assets held by or on
behalf  of the  Purchasers  will be  transmitted  in the form  received  by such
Purchaser or the  Administrative  Agent to the Seller.  The transmission of such
amount by such Purchaser or the Administrative  Agent shall be deemed to satisfy
the payment of the deferred  payment  component of the purchase price under this
Article IV.
                          ARTICLE V: FEES AND EXPENSES
         SECTION 5.1.  Settlement Date Payments.  The Administrative  Agent will
notify the  Seller and the  Collection  Agent on the last  Business  Day of each
calendar month of the Purchase Discount,  Purchase Premium, Unused Facility Fee,
Operating  Expense Fee,  Administration  Fee and  Collection  Agent Fee. On each
Settlement  Date,  the  Seller  will  pay to the  Purchaser  the  following,  in
accordance with Section 7.2.2.
         SECTION 5.1.1.  Purchase Discount.  A Purchase  Discount  equal to, for
each day in any Settlement Period, the weighted average of the following:
         (i)  the weighted  average  determined on each such day of the discount
rates on all  commercial  paper  notes  issued  by the  Conduit  Purchaser  at a
discount on such day (other than  commercial  paper notes the  proceeds of which
are  used by the  Conduit  Purchaser  to (x)  purchase  receivables,  or  extend
financing secured thereby, at a fixed interest rate or (y) conduct any arbitrage
activities of  the  Conduit  Purchaser), converted to an annual yield-equivalent
rate on the basis of a 360-day year;
         (ii)  the  weighted  average determined  on each such day of the annual
interest rates payable on all interest-bearing  commercial paper notes issued by
the Conduit  Purchaser  on such day (other than (A) the  commercial  paper notes
described  in clauses (x) and (y) of  paragraph  (i)  above),  on the basis of a
360-day year;
         (iii)  the Alternative  Rate for the Settlement  Period relating to the
Settlement  Date to the extent that the Conduit  Purchaser  has  borrowed  money
during such  Settlement  Period  (which  money  shall be  borrowed  only after a
determination by the Conduit Purchaser that financing its activities during such
period  by  issuing   commercial   paper  notes  would  not  be  practicable  or
cost-efficient); and
         (iv)  the  Alternative Rate for the Settlement  Period relating to such
Settlement Date in respect of that portion of the Investment,  if any, allocable
to the Ownership Interest of the Back-Stop Purchaser.
         SECTION 5.1.2.  Purchase Premium.  In respect of the Ownership Interest
of the Conduit  Purchaser, a Purchase Premium equal to the rate per annum speci-
fied as such in the Fee Letter.
         SECTION  5.1.3.  Operating  Expense  Fee.  In respect of the  Ownership
Interest of the Conduit  Purchaser,  an Operating  Expense Fee to cover  routine
operating  expenses of the Conduit  Purchaser  incurred  during the  immediately
preceding Settlement Period, including fees payable to commercial paper dealers,
issuing and paying agents, rating agencies, printers and auditors; provided that
(i) the Operating Expense Fee in respect of commercial paper dealer  commissions
shall not exceed a rate per annum equal to 0.05% and (ii) the Operating  Expense
Fee in respect of issuing and paying agent fees,  rating  agency fees,  printing
and all other routine operating expenses shall not exceed a rate per annum equal
to 0.01%.  If the amount of any  Operating  Expense Fee paid for any  Settlement
Period  exceeds the actual  amount of the  operating  costs and  expenses of the
Conduit Purchaser  incurred during such period,  then the Conduit Purchaser will
remit on an annual  basis the  excess to the  Seller in the form of a  patronage
distribution.
         SECTION 5.1.4.  Collection  Agent Fee. A Collection  Agent Fee equal to
2.00% per annum, which fee shall be remitted by the Purchasers to the Collection
Agent. If a Diamond Shamrock Entity is acting as the Collection  Agent, then the
Collection  Agent shall retain an amount equal to the  Collection  Agent Fee (in
full  satisfaction  of the payment of such fee to the  Collection  Agent) out of
amounts  required to be  remitted by the  Collection  Agent in  accordance  with
Section 7.2.2(b)(i).
         SECTION 5.1.5. Administration Fee. In respect of the Ownership Interest
of  the  BackStop  Purchaser   outstanding  during  the  immediately   preceding
Settlement Period, if any, an Administration Fee of up to 0.01% to cover routine
operating  expenses of the Back-Stop  Purchaser incurred during such immediately
preceding Settlement Period.
         SECTION 5.2. Unused Facility Fee. On each Settlement  Date, in addition
to the amounts  payable  pursuant to Section  5.1,  the Seller  shall pay to the
Back-Stop Purchaser an "Unused Facility Fee" for the period from the immediately
preceding  Settlement  Date (or, in the case of the initial payment of such fee,
from the date  hereof) to such  Settlement  Date equal to (i) the rate per annum
specified in the Fee Letter for computing the Unused Facility Fee, multiplied by
(ii) an amount, if positive, equal to the Facility Limit minus the average daily
amount of the outstanding  Investment  (calculated without regard to any amounts
then owed by the Seller under Article XI of this  Agreement or under any similar
provision  in any  other  Sale  Document).  The  Unused  Facility  Fee  shall be
calculated on the basis of a year of 360 days for actual days elapsed, and shall
be payable by the Seller from sources  other than  Collections  allocable to the
Purchasers.  There shall be credited  against  the Unused  Facility  Fee payable
hereunder,  the actual  amount of any "Unused  Facility  Fee" (as defined in the
Trade Receivables  Purchase Agreement) actually paid under the Trade Receivables
Purchase Agreement.
         SECTION 5.3.  Structuring Fee.  The Seller  will pay  a structuring fee
to the Purchaser on the date on which this Agreement is executed as set forth in
the Fee Letter.
         SECTION 5.4. Legal Fees and Expenses.  In addition to all other amounts
payable by the  Seller  under this  Agreement,  the Seller  agrees to pay to the
Purchasers by no later than 30 days after presentation of a ▇▇▇▇ therefore,  (i)
the  reasonable  fees and expenses of counsel for the  Purchasers  in connection
with the negotiation,  preparation,  execution, amendment and enforcement of the
Sale  Documents and advice with respect to the  Purchasers'  rights and remedies
thereunder  and (ii) all  reasonable  and  documented  out-of-pocket  costs  and
expenses of the Purchasers and the  Administrative  Agent incurred in connection
with this  Agreement  not  otherwise  provided for in this  Agreement  which are
accrued and owing to a Purchaser or the Administrative Agent, including, without
limitation,  expenses  in  connection  with  due  diligence  activities  of  the
Purchasers as to the Diamond  Shamrock  Entities after the date hereof,  such as
the costs of travel and lodging,  but excluding any expenses associated with the
replacement of the Administrative Agent.
         SECTION 5.5. Interest on Unpaid Amounts.  To the extent that the Seller
or Collection  Agent fails to pay when due to a Purchaser or the  Administrative
Agent any fee,  expense  or other  amount  payable  hereunder  or under any Sale
Document,  interest shall be due and payable on such unpaid amount, for each day
until  paid in full,  at the rate of 2.00% in  excess of the Base Rate in effect
from time to time.
         SECTION 5.6.  Audits.  In addition to all other amounts  payable by the
Seller hereunder  (including,  without limitation,  under Sections 5.1.3 and 5.4
above), the Seller shall reimburse the Purchasers and the  Administrative  Agent
in respect of all reasonable  out-of-pocket  costs and expenses incurred by them
in  the  conduct  of any  audit  or  inspection  of the  Seller,  DSRMNB  or the
Collection Agent in connection with the Sale Documents.
                         ARTICLE VI: PURCHASE PROCEDURES
         SECTION 6.1. Types of Purchases. The three types of Purchases which can
be made under this Agreement are an Initial  Purchase,  an Incremental  Purchase
and a Reinvestment  Purchase.  The first  Purchase made by each Purchaser  under
this  Agreement  is the Initial  Purchase  with respect to such  Purchaser.  Any
Purchase (other than the Initial  Purchase) made by a Purchaser which causes the
amount of the Investment to increase is an Incremental  Purchase.  The amount of
each Incremental Purchase shall be $5,000,000 or greater. Any Purchase made by a
Purchaser with Collections is a Reinvestment Purchase.
         SECTION 6.2.  Notice Requirements.
         (a)  In the case of the Initial  Purchase with respect to any Purchaser
or any Incremental Purchase, the Seller will give the Administrative Agent three
Business  Days'  written  notice of its offer to sell an  Ownership  Interest in
Receivables Assets to such Purchaser.  The notice will be in the form of Exhibit
A, and will include the amount of the new Investment  requested and the Business
Day on which the Purchase will be made.  The Conduit  Purchaser  will notify the
Seller  within one Business Day after the receipt of such notice from the Seller
whether it intends to accept or reject the offer.
         (b)  Each of the Seller and the Conduit Purchaser may elect not to make
Reinvestment  Purchases by notifying  the other  parties  hereto to such effect.
Such notice shall be given by no later than 1:00 P.M. New York time on the third
Business  Day  preceding  the  date  on  which  the  Reinvestment  Purchase  was
contemplated to be made. The notice will be in the form of Exhibit B-1, and will
specify (i) the date on which  Reinvestment  Purchases  shall cease and (ii) the
amount to which the Investment  shall be reduced before  Reinvestment  Purchases
will  recommence.  No such notice  shall be required if an Event of  Liquidation
occurs,  and no further  Reinvestment  Purchases by any Purchaser  shall be made
upon the occurrence of an Event of Liquidation.
         (c)  The Seller may, on any Business Day (provided that notice has been
given to the  Administrative  Agent in the form of Exhibit  B-2 by no later than
1:00 P.M. New York City time on the third  Business Day prior  thereto),  reduce
the dollar amount of the Investment in lieu of the application of Collections to
the amount of such  reduction  by paying to the  Administrative  Agent,  for the
ratable  account of the  Purchasers  based upon their  respective  shares of the
Investment,  by  12:00  Noon  New  York  City  time on the  Business  Day of the
contemplated  reduction,  the  dollar  amount by which the  Investment  is to be
reduced  after giving  effect to the  application  of  Collections  received and
applied to the reduction of the Investment on such Business Day.
         SECTION 6.3.  Conditions  Precedent to Initial Purchase.  The following
conditions  must be  satisfied  before  the first  Initial  Purchase  hereunder,
whether made by the Conduit Purchaser, in its sole discretion,  or the Back-Stop
Purchaser:
         SECTION 6.3.1. Membership in the Purchaser. The Seller will have joined
the Conduit  Purchaser  as a member by  delivering  to the Conduit  Purchaser an
executed Membership Agreement in the form of Exhibit C, together with the sum of
$10,000 as an  investment  in the Conduit  Purchaser.  Such  investment  will be
refunded by the Conduit  Purchaser  to the Seller when the  Aggregate  Ownership
Interest is reduced to zero and no further Purchases are to be made.
         SECTION 6.3.2. Fees. The  Administrative  Agent and each Purchaser will
have received all fees due  hereunder or in  connection  herewith on or prior to
the date of such first Initial Purchase hereunder.
         SECTION 6.3.3.  Absence of Liens.  The  Administrative  Agent will have
received  evidence  acceptable to it (including  Uniform  Commercial Code search
reports) that all Receivables,  all Receivables  Assets and all proceeds thereof
are free and clear of liens,  security interests,  claims and encumbrances other
than those created pursuant to this Agreement,  the Credit Card Receivables Sale
Agreement or the DSRMNB Participation Agreement.
         SECTION 6.3.4. Financing Statements. The Administrative Agent will have
received  acknowledgment  copies of UCC-1  financing  statements,  and all other
documents  reasonably  requested by the  Administrative  Agent,  to evidence the
perfection of the Purchasers' Ownership Interests in the Receivables Assets.
         SECTION  6.3.5.  Credit  Card  Receivables  Sale  Agreement,  Etc.  The
Administrative  Agent shall have  received  an executed  copy of the Credit Card
Receivables  Sale Agreement,  a copy certified to be a true copy of the executed
DSRMNB  Participation  Agreement,  a copy  certified  to be a true  copy  of the
executed DSRMNB  Servicing  Agreement and the written  acknowledgment  of DSRMNB
referred to in Section 2.1(b) of the Credit Card Receivables Sale Agreement.
         SECTION 6.3.6.  Receivables  Activity Report. The Administrative  Agent
will have  received  a  Receivables  Activity  Report  in the form of  Exhibit E
covering the calendar  month ending most recently prior to the date of the first
Initial Purchase hereunder.
         SECTION 6.3.7.   Resolutions.   The  Administrative  Agent  will   have
received a  certificate  of  each  of  the  Seller's , DSRM's, the Parent's  and
DSRMNB's secretary or assistant secretary attesting to:
         (a)  the resolutions  of such  Person's  Board of Directors authorizing
the execution  by such  Person of  the Sale  Documents to  be executed  by  such
Person;
         (b)  the names and signatures of the officers of such Person authorized
to execute the Sale Documents to be executed by such Person; and
         (c)  the  completeness and  correctness of the attached  constitutional
documents  (certified by the  appropriate  governmental  officer) and by-laws of
such Person.
         SECTION  6.3.8.  Legal  Opinion of Seller's,  DSRM's,  DSRMNB's and the
Parents's  Counsel.  The  Administrative  Agent will have  received  one or more
opinions  from  counsel  to  the  Seller's,   DSRM,   DSRMNB's  and  the  Parent
satisfactory in form and substance to the Administrative Agent.
         SECTION 6.3.9. Good Standing  Certificates.  The  Administrative  Agent
will have received  certificates of recent date issued by the Secretary of State
of the States of Delaware  and Texas with  respect to the  Seller,  DSRM and the
Parent,  and a certificate of due status issued by the Office of the Comptroller
of the  Currency  with  respect to DSRMNB,  as to the legal  existence  and good
standing of the Seller,  DSRM and the Parent and legal  existence and due status
of DSRMNB, respectively.
         SECTION 6.3.10.  Performance  Support  Agreement.  The   Administrative
Agent will have received a duly executed Performance Support Agreement satisfac-
tory in form and substance to the Administrative Agent.
         SECTION 6.3.11.  Blocked Account Agreements.  The Administrative  Agent
will have  received  the  original  Blocked  Account  Agreement  executed by the
Seller, DSRMNB, DSRM, the Administrative Agent and each Blocked Account Bank, as
applicable.
         SECTION 6.4. Condition Precedent to All Incremental  Purchases.  Before
any Purchaser will consider making an Incremental  Purchase,  the Administrative
Agent will have received a Receivables  Activity Report in the form of Exhibit E
covering  the period from the date on which the last such  report was  delivered
under  Section 7.4 and the Business Day  preceding  the date of the  Incremental
Purchase.
         SECTION 6.5.  Conditions  Precedent to  All  Purchases.  The  following
conditions must  be satisfied  before any  Purchaser  will  consider  making any
Purchase:
         SECTION 6.5.1.  Representations and Covenants. On and as of the date of
such Purchase (i) the  representations of the Seller in Article IX shall be true
and  correct  with the same  effect as if made on such date and (ii) the  Seller
shall be in compliance with the covenants set forth in this Agreement.
         SECTION 6.5.2.  Other Documents.  The Administrative Agent and  each of
the  Purchasers  will  have  received  all other  documents that any of them had
reasonably requested from the Seller.
                       ARTICLE VII: SETTLEMENT PROCEDURES
         SECTION 7.1.  Settlement Date.  Each of  the following shall constitute
a Settlement Date:
         (a)  the first Business Day of each month;
         (b)  each day designated  as a  Settlement  Date by the  Administrative
Agent;  provided,  however, that Administrative Agent shall not cause Settlement
Dates to occur on a basis more  frequent  than weekly  unless either an Event of
Liquidation has occurred or a Purchaser is itself being liquidated;
         (c)  each Business Day on which the Investment is reduced in accordance
with Section 3.1 or 6.2;
         (d)  any date on which a reduction  in the  Investment  is  required to
prevent the Aggregate  Ownership  Interest from exceeding the Maximum  Ownership
Interest; and
         (e)  each date on which any payment due to a Purchaser  from the Seller
under Article XI has not been made.
         SECTION 7.2.  Application of Collections.  The  Collection  Agent  will
apply the Collections as provided in Sections 7.2.1 and 7.2.2, as applicable.
         SECTION  7.2.1.  Application  of  Collections  on  Days  That  Are  Not
Settlement  Dates.  The Collection Agent will, by 2:00 P.M. (New York City time)
on any  Business  Day  (other  than  a  Settlement  Date)  since  the  preceding
Settlement Date, from Collections received on such day:
         (a)  first,  pay  to  the  Seller  for its  share of  ownership  in the
              Collections an amount   equal to  the product of:  (i) 1 minus the
              Aggregate Ownership Interest and (ii) total Collections; and
         (b)  second, pay  to the Seller for  a Reinvestment  Purchase an amount
              equal to the product of: (i) the Aggregate Ownership  Interest and
              (ii) total  Collections less  the  amounts  described  in  Section
              7.2.2(b)(i).
         SECTION 7.2.2.  Application of  Collections  on Settlement  Dates.  The
Collection  Agent  will,  by 3:00 P.M.  (New York City time) on each  Settlement
Date, from Collections received since the preceding Settlement Date:
         (a)  first,  pay to  the  Seller  for its  share of  ownership  in  the
              Collections  an  amount  equal  to the product of: (i) 1 minus the
              Aggregate Ownership Interest and (ii) total Collections; and
         (b)  second, from the Purchasers' Aggregate  Ownership Interest in  the
              Collections, pay:
              (i)   first, to  the  Administrative Agent  for the account of the
                    Purchasers according to their respect interests  therein  an
                    amount equal to  the sum of  the following amounts  for each
                    day in the Settlement Period:
                    [(PD + PP + OEF + CAF)  x CPI]  +  [(PD +AA +  CAF) x BPI]
                      -------------------                --------------------
                             360                                 360
                    where   PD     =      Purchase Discount
                            PP     =      Purchase Premium
                            OEF    =      Operating Expense Fee
                            CAF    =      Collection Agent Fee
                            AA     =      Administration Fee
                            CPI    =      the Conduit Purchaser's Investment
                            BPI    =      the Back-Stop Purchaser's Investment
              (ii)  second,
                    (A)  if Reinvestment Purchases have been suspended, then all
                         remaining  Collections  will be  paid to the Purchasers
                         ratably  according  to their respect  Investments as  a
                         return thereof; or
                    (B)  if  Reinvestment  Purchases  have not  been  suspended,
                         then all  remaining  Collections  shall be  paid to the
                         Seller for Reinvestment Purchases.
         SECTION 7.3.  Adjustments, Etc.
         (a)  The Collection  Agent  shall  not  include  any  Receivable  as an
Eligible  Receivable if (i) the representation and warranty contained in Section
9.1(f) is no longer true with respect to any  Receivable  in which any Purchaser
has an Ownership Interest or (ii) the Seller or Collection Agent proposes to (x)
reduce or cancel the outstanding  balance of any Receivable in which a Purchaser
has an  Ownership  Interest  as a result  of  defective,  rejected  or  returned
merchandise  or  services  or in  connection  with a claim,  dispute,  or offset
asserted against such Receivable by an Obligor or (y) otherwise amend, modify or
waive any term or condition of such Receivable (other than in a manner that does
not  affect  the aging or  impair  the  collectibility  of such  Receivable  and
otherwise is in accordance with the Credit and Collection Policies).
         (b)  On or before the Settlement Date next succeeding the date on which
any Receivable is affected as described in the preceding  clause (a), the Seller
shall either:
         (i)  pay to the  Collection Agent to be applied in accordance with Sec-
     tion 7.2 an amount equal to the outstanding  balance of such Receivable (or
     any affected portion thereof); or
         (ii) adjust the Aggregate Ownership  Interest in effect on such date by
     decreasing "ER" in  the  denominator  of  the fraction described in Section
     3.1(a)  by the  outstanding  balance of  the affected  Receivable (or  any 
     affected portion thereof) so long as the Aggregate Ownership Interest would
     not, as a result, exceed the Maximum Ownership Interest.
         SECTION 7.4.  Receivables  Activity  Report.  The Collection Agent will
provide the  Administrative  Agent with a Receivables  Activity  Report no later
than 3 Business Days following each Settlement  Date. The  Receivables  Activity
Report  will be in the form of  Exhibit  E and  will  cover  the  most  recently
completed Settlement Period.
             ARTICLE VIII: ADMINISTRATIVE AGENT AND COLLECTION AGENT
         SECTION 8.1.  Appointment of  Administrative  Agent. Each Purchaser has
appointed  CIBC  as  its  Administrative  Agent.  The  Administrative  Agent  is
responsible  for  administering  and enforcing this Agreement and fulfilling all
other duties  expressly  assigned to it in this  Agreement.  Each  Purchaser has
granted the Administrative  Agent the authority to take all actions necessary to
assure the Seller's  compliance with the terms of this Agreement and to take all
actions  required or  permitted to be  performed  by such  Purchaser  under this
Agreement.
         SECTION 8.1.1.  Replacement of Administrative  Agent.  Either Purchaser
may, at any time in its  discretion,  upon 120 days' prior written notice to the
Administrative  Agent and the Seller remove the Administrative Agent and appoint
a new  Administrative  Agent acceptable to all Purchasers,  which shall have the
duties described in Section 8.1. Such appointment of a successor  Administrative
Agent shall be effective upon the  acceptance by such  successor  Administrative
Agent of all of the duties and  obligations  of the  Administrative  Agent under
this Agreement. The appointment of a new Administrative Agent shall not increase
any of the fees payable under this  Agreement and any expenses  associated  with
such  appointment  shall be paid by the  Purchasers  and/or  the  Administrative
Agent.
         SECTION 8.2.  Appointment of Collection Agent.
         (a)  Each  Purchaser  appoints  DSRM as its  Collection  Agent  and the
Collection  Agent  accepts  such  appointment.  The  Collection  Agent  shall be
responsible for collecting the Receivables  and  Receivables  Assets,  tracking,
holding and remitting the Collections and fulfilling all other duties  expressly
assigned to it in this Agreement.
         (b)  The Collection Agent shall,  on each day on which  Collections are
received  by it, set aside and hold in trust for the  Purchasers  their share of
such Collections.
         (c)  Each Purchaser grants the Collection Agent the authority necessary
to carry out its  duties  under  this  Agreement  for so long as it is acting as
Collection Agent.
         (d)  Each Purchaser grants to each Collection  Agent, for so long as it
is acting in that  capacity,  an  irrevocable  power of  attorney to endorse all
drafts,  checks and other forms of payment made out in the name of the Seller or
any other  Diamond  Shamrock  Entity  and to  settle,  adjust  and  forgive  any
Receivable,  subject to the  provisions  of  Section  10.3(b)  hereof.  Upon any
replacement  of the  Collection  Agent,  such power of  attorney in favor of the
replaced Collection Agent will terminate and have no further force or effect.
         (e)  The  Collection  Agent  shall  exercise  reasonable  care  in  the
performance  of its duties under this Agreement and shall use the same degree of
care and skill which it applies to its own property.
         (f)  The Collection  Agent may  delegate  its duties  hereunder to such
Person as may be approved by the Administrative  Agent upon receipt of 120 days'
prior written notice,  such approval not to be unreasonably  withheld,  but such
delegation  shall neither affect the  obligations of the Collection  Agent under
any of the Sale Documents nor the rights of any Purchaser or the  Administrative
Agent under any of the Sale Documents,  including, without limitation, the right
to replace the Collection Agent pursuant to Section 8.2.1.
         SECTION  8.2.1.  Replacement  of   Collection  Agent;  Notification  of
                         Obligors.
         (a)  Upon the occurrence  of any  Event of Liquidation, the Administra-
tive Agent or any Purchaser may upon the provision of three Business  Days prior
written  notice  to DSRM  remove  DSRM as its  Collection  Agent,  appoint a new
Collection  Agent,  take control of the Blocked  Accounts (by  delivering to the
Blocked  Account  Bank  notice  in the  form  attached  to the  Blocked  Account
Agreements),  notify  Obligors  of  the  Aggregate  Ownership  Interest  in  the
Receivables  Assets  and  exercise  all  other  incidents  of  ownership  in the
Receivables Assets.
         (b)  The Administrative  Agent and  the Purchasers shall have the right
to remove any successor Collection Agent  to DSRM and to take the other  actions
described in (a) above at any time in their sole discretion.
         (c)  If DSRM is removed as Collection  Agent,  DSRM shall  transfer and
cause any Person to whom duties of the  Collection  Agent have been delegated by
DSRM pursuant to Section 8.2(f), to transfer, to the Administrative Agent or any
successor  servicer   designated  by  the  Administrative   Agent  all  records,
correspondence and documents  (including  computer tapes or other back-up media)
requested  by the  Administrative  Agent or such  successor  and to permit  such
persons to have access to, and to copy, all data and information used by DSRM in
the  collection,  administration  or  monitoring  of  the  Receivables  and  the
Receivables Assets. In addition,  the Seller or DSRM, as applicable,  will grant
or  cause  to  be  granted  to  the  Administrative  Agent  or  its  designee an
irrevocable,  non-exclusive license  to use,  without  royalty or payment of any
kind, all software  used by  the Seller,  DSRM or  any  of their  Affiliates, as
applicable,  to  account  for  the  Receivables,  to  the  extent  necessary  to
administer  the Receivables, whether  such software is owned by the Seller, DSRM
or any such Affiliate, as applicable, or is  owned by  others and  used  by  the
Seller, DSRM or any such Affiliate, as applicable, under license agreements with
respect  thereto,  provided, that  should  the  consent of  any licensor  of the
Seller, DSRM or any such Affiliate, as applicable,  to such grant of the license
described herein be required, each  of  the Seller  and DSRM hereby agrees, upon
the  request of  the Administrative Agent, to use its best efforts to obtain the
consent of such  third-party  licensor.   Any  license  granted  hereby shall be
irrevocable, and shall terminate on the date after the Termination Date on which
the Aggregate Ownership Interest shall have been reduced to zero.
                   ARTICLE IX: REPRESENTATIONS AND WARRANTIES
         SECTION  9.1  Representations  and  Warranties  of the  Seller  and the
Collection  Agent.  Each of the  Seller and the  Collection  Agent  makes,  with
respect  to  itself,  the  following   representations  and  warranties  to  the
Purchasers:
         (a)  The Seller is a limited liability company and the Collection Agent
is a corporation duly organized, validly existing and in good standing under the
laws  of  their  respective  jurisdictions  of  organization  and  each  is duly
qualified  in good  standing  in each  jurisdiction  where the  failure to be so
qualified  could  materially   adversely  affect  its  ability  to  perform  its
obligations hereunder.
         (b)  The execution,  delivery  and  performance  by the  Seller and the
Collection Agent of the Sale Documents to which they are party, and the Seller's
use of the proceeds of the Purchases, are within the Seller's and the Collection
Agent's respective company or corporate powers, have been duly authorized by all
necessary  company or  corporate  action,  do not  contravene  (i) the  Seller's
certificate  of  formation  or operating  agreement  or the  Collection  Agent's
certificate of  incorporation  or by-laws or (ii) applicable law or any material
contractual  restriction  binding on the Seller or the Collection  Agent, and do
not result in or require the creation of any lien (other than  pursuant  hereto)
upon or with respect to any of their respective  properties;  and no transaction
contemplated hereby requires compliance with any bulk sales act or similar law.
         (c)  No authorization  or approval or other action by, and no notice to
or filing with, any  governmental  authority or regulatory  body is required for
the due  execution,  delivery and  performance  by the Seller or the  Collection
Agent of the Sale  Documents,  or for the  perfection of  Purchasers'  Aggregate
Ownership  Interest in the Receivables  Assets, or exercise by the Seller of the
Seller's rights and remedies under the Credit Card  Receivables  Sale Agreement,
except for the filing of the financing statements referred to in Section 6.3.4.
         (d)  The Sale Documents,  when executed and delivered by the Seller and
the Collection  Agent,  will be the legal,  valid and binding  obligation of the
Seller and the Collection  Agent,  respectively,  enforceable in accordance with
their  terms,  except  as  such  enforceability  may be  limited  by  applicable
bankruptcy, insolvency, reorganization,  moratorium or other similar laws now or
hereafter in effect affecting the enforcement of creditors' rights generally and
except as may be limited by general principles of equity (whether  considered in
a suit at law or in equity).
         (e)  There  is  no  pending,  or  to  the   knowledge  of  the  Seller,
threatened,  action or  proceeding affecting the  Seller or the Collection Agent
or any of its  subsidiaries  before any court, governmental agency or arbitrator
which is  reasonably  likely to  materially  adversely affect  (i) its financial
condition or operations or (ii) its ability to perform its obligations under the
Sale Documents, or which is reasonably likely  to affect  the legality, validity
or enforceability of any Sale  Document  or of the Aggregate Ownership Interest.
         (f)  The Seller is the legal and  beneficial  owner of the  Receivables
Assets  free and clear of any lien,  security  interest,  claim or  encumbrance,
except as created by this Agreement,  the Credit Card Receivables Sale Agreement
or the DSRMNB Participation  Agreement;  upon each Purchase,  the Administrative
Agent, on behalf of the applicable Purchaser, will acquire a valid and perfected
first priority  ownership  interest in the  Receivables  Assets then existing or
thereafter  arising and in the Collections with respect thereto,  free and clear
of any lien, security interest, claim or encumbrance,  except as created by this
Agreement,   the  Credit  Card   Receivables   Sale   Agreement  or  the  DSRMNB
Participation Agreement.
         (g)  The information provided by the Seller to the Collection Agent for
use in each  Receivables  Activity  Report  prepared  under  Section 7.4 and all
written  information and Sale Documents furnished or to be furnished at any time
by the Seller to the  Administrative  Agent in connection with this Agreement is
or will be accurate in all material  respects as of their respective  dates, and
no such  document  will contain any untrue  statement of a material fact or will
omit to  state  a  material  fact  necessary  to make  any  such  statement  not
materially misleading.
         (h)  Each  eceivables  Activity Report and any other report prepared by
the Collection Agent pursuant to this Agreement will be accurate in all material
respects as of its date, and no such document will contain any untrue  statement
of a material fact or will omit to state a material  fact  necessary to make any
such report not materially misleading.
         (i)  The chief  place of  business  and chief  executive  office of the
Seller  and the  office  where the  Seller  keeps  its  records  concerning  the
Receivables  and the  Receivables  Assets are located at the  address  specified
below its  signature  to this  Agreement.  The chief place of business and chief
executive  office of each of DSRMNB and DSRM, and the office where they maintain
their respective records concerning the Receivables are located at the addresses
specified on Schedule D.
         (j)  The  names and  addresses of  the  Blocked Account Banks, together
with  the account  numbers of  the Blocked Accounts, are specified in Schedule C
hereto  (or  at  such other Blocked  Account Banks  and/or  such  other  Blocked
Accounts as have been notified to the Administrative Agent).
         (k)  The  Parent,  the  Seller,  DSRM  and DSRMNB are treating the con-
veyance  of the Aggregate Ownership  Interest in  the Receivables Assets and the
Collections  under  the Sale  Documents  as a sale  for  purposes  of  generally
accepted accounting principles.
         (l)  Each Plan is in  compliance  with all of the  applicable  material
provisions of ERISA and each Plan intended to be qualified  under Section 401(a)
of the  Code is so  qualified.  No Plan has  incurred  an  "accumulated  funding
deficiency"  (within  the  meaning of Section 302 of ERISA or Section 412 of the
Code) whether or not waived. Neither the Seller nor any ERISA Affiliate: (i) has
incurred or expects to incur any liability under Title IV of ERISA, with respect
to any Plan,  which  could give rise to a lien in favor of the PBGC,  other than
liability  for the payment of premiums,  all of which have been timely paid when
due in  accordance  with Section 4007 of ERISA,  (ii) has incurred or expects to
incur any  withdrawal  liability,  within the meaning of Section  4201 of ERISA,
(iii) is subject to any lien under Section 412(n) of the Code or Sections 302(f)
or 4068 of ERISA or arising out of any action  brought  under  Sections  4070 or
4301 of ERISA,  or (iv) is required to provide  security to a Plan under Section
401(a)(29) of the Code. The PBGC has not instituted proceedings to terminate any
Plan  or to  appoint  a  trustee  or  administrator  of  any  such  Plan  and no
circumstances  exist that  constitute  grounds  under  Section  4042 of ERISA to
commence any such proceedings.
         (m)  Each of the Seller, DSRMNB and DSRM has  complied in all  material
respects  with  the  Credit  and   Collection   Policies  with  respect  to  the
Receivables.
         (n)  Prior to a transfer pursuant to the Credit Card  Receivables  Sale
Agreement,  DSRM  shall be the legal  and  beneficial  owner of the  Receivables
Assets sold by DSRM to the Seller pursuant to the Credit Card  Receivables  Sale
Agreement free and clear of any lien, security interest or encumbrance except as
created by the DSRMNB  Participation  Agreement and the Credit Card  Receivables
Sale  Agreement  is  effective  to, and shall,  transfer  to the Seller (and the
Seller shall  acquire)  from DSRM all right,  title and interest of DSRM in each
such Receivable Asset and Collections with respect thereto free and clear of any
lien,  security  interest  or  encumbrance  except  as  created  by  the  DSRMNB
Participation Agreement.
         (o)  The Collection  Agent (i) has completed a review and assessment of
all computer applications (including, but not limited to those of its suppliers,
vendors,  customers  and any third  party  servicers),  which are  related to or
involved  in  the  origination,  collection,  management  or  servicing  of  the
Receivables  (the  "Receivable  Systems")  and (ii)  has  determined  that  such
Receivable  Systems  are (or will be on or before  November  30,  1999)  able to
recognize and perform properly date-sensitive  functions involving certain dates
prior to and any date after December 31, 1999 ("Year 2000 Compliant"). The costs
of  all  assessment,   remediation,  testing  and  integration  related  to  the
Collection  Agent's  plan  for  becoming  Year  2000  Compliant  will  not  have
materially and adversely  affect  the  collectibility  of the Receivables or the
business or operations of the Seller, DSRM, DSRMNB or the Parent.
                              ARTICLE X: COVENANTS
         SECTION 10.1.  Affirmative  Covenants of the Seller and the  Collection
Agent. Until the Aggregate  Ownership Interest is reduced to zero and no further
Purchases  are to be made,  each of the Seller and the  Collection  Agent  (with
respect  to  itself)  will,  unless  the  Administrative  Agent on behalf of the
Purchaser, has otherwise consented in writing:
         (a)  Comply in all material respects with all applicable  laws,  rules,
regulations  and orders with respect to it, its business and  properties and all
Receivables and Collections.
         (b)  Maintain its existence as a limited liability company (in the case
of the Seller) or corporation (in the case of the Collection Agent) in the state
of  Delaware,  and  qualify  and  remain  qualified  in  good  standing  in each
jurisdiction  where the failure to be so qualified  could  materially  adversely
affect its ability to perform its obligations hereunder.
         (c)  At any reasonable time,  subject to reasonable prior notice of not
less than two Business Days (or one Business Day if the Administrative  Agent is
investigating  a potential  Event of  Liquidation),  permit any Purchaser or its
agents or representatives to visit and inspect any of its properties, to examine
its books of account and other  records and files  relating to  Receivables  and
Receivables Assets (including, without limitation, computer tapes and disks) and
to discuss its  affairs,  business,  finances and accounts as they relate to the
Receivables and Receivables Assets with its officers and employees.
         (d)  Maintain and implement  administrative  and  operating  procedures
(including,  without  limitation,  an ability to recreate records evidencing the
Receivables  and the  Receivables  Assets in the event of the destruction of the
originals  thereof),  and keep and maintain  all records and other  information,
reasonably  necessary  or  advisable  for  the  collection  of  Receivables  and
Receivables Assets (including,  without  limitation,  records adequate to permit
the daily  identification  of Receivables and all Collections and adjustments to
Receivables).
         (e)  At its expense timely and fully perform and comply in all material
respects with all material  provisions and covenants  required to be observed by
the Seller under the contracts related to the Receivables.
         (f)  Keep  the  Seller's places of  business and chief executive office
(if the  Seller has more  than one place  of business)  and  the office where it
keeps the originals of its  records concerning the  Receivables at the addresses
listed  on Schedule D or,  upon 30 days' prior written notice to the Administra-
tive  Agent, at  any other  location in  a  jurisdiction where all UCC financing
statements  and such other  instruments and documents  that may be necessary or 
desirable  or that the  Administrative  Agent or any  Purchaser  may  reasonably
request to perfect,  protect or evidence the Aggregate  Ownership  Interest have
been filed.
         (g)  Comply in all  material respects  with the  Credit and  Collection
Policies  in  regard  to  each  Receivable  and  any  contract  related  to such
Receivable.
         (h)  File and maintain in effect all  filings,  and take all such other
actions,  as may be  necessary to protect the  validity  and  perfection  of the
Aggregate Ownership Interest in Receivables Assets.
         (i) Cause each Plan to comply with all applicable provisions of ERISA.
         (j)  Not (i) permit any accumulated  funding  deficiency (as defined in
Section  302 of ERISA or Section  412 of the Code) to exist with  respect to any
Plan,  whether or not waived,  (ii) fail, or permit any ERISA Affiliate to fail,
to pay any required  installment or any other payment required under Section 412
of the  Code  with  respect  to any  Plan on or  before  the due  date  for such
installment or other payment, (iii) terminate,  or permit any ERISA Affiliate to
terminate,  any Plan which would  result in any  liability  of the Seller or any
ERISA  Affiliate  under Title IV of ERISA,  (iv) take any action or fail to take
any action, or permit any ERISA Affiliate to take any action or fail to take any
action,  with respect to any multiemployer  plan (as defined in Section 3(37) of
ERISA)  that will  result in  withdrawal  liability  of the  Seller or any ERISA
Affiliate,  or (v)  amend,  or permit  any  ERISA  Affiliate  to  amend,  a Plan
resulting  in an  increase  in  liabilities  such  that the  Seller or any ERISA
Affiliate is required to provide security to such Plan under Section  401(a)(29)
of the Code.
         (k)  Treat the  conveyance of the Aggregate  Ownership  Interest in the
Receivables  Assets and the Collections  under this Agreement and the other Sale
Documents as a sale for purposes of generally accepted accounting principles.
         (l)  At its own  expense, timely  and fully  perform  and comply in all
material  respects with all material  provisions,  covenants and other  promises
required  to be observed by it under the  Cardholder  Agreements  related to the
Receivables,  and  timely and fully  comply in all  material  respects  with the
Credit and  Collection  Policies  in regard to each  Receivable  and the related
Cardholder Agreement.
         (m)  The Seller hereby  acknowledges that the  Purchasers  are entering
into the  transactions  contemplated  by this  Agreement  in  reliance  upon the
Seller's  identity as a separate legal entity from the DSRMNB,  DSRM, the Parent
or any Diamond Shamrock Entity (as defined below). Therefore, from and after the
date of  execution  and  delivery of this  Agreement,  the Seller shall take all
reasonable steps including,  without limitation, all steps that any Purchaser or
the  Administrative  Agent may from time to time reasonably  request to maintain
the  Seller's  identity  as a separate  legal  entity and to make it manifest to
third parties that the Seller is an entity with assets and liabilities  distinct
from  those of DSRMNB,  DSRM,  the Parent  and any  Affiliates  (other  than the
Seller) thereof  (individually a "Diamond  Shamrock Entity" and collectively the
"Diamond Shamrock  Entities"), and  not just a  division of any Diamond Shamrock
Entity.  Without limiting the generality of the foregoing and in addition to and
consistent with the covenant set forth in paragraph (b) above, the Seller shall:
         (i)    require  that all full-time  employees  of the  Seller  identity
     themselves  as such  and not  as employees  of any  Diamond Shamrock Entity
     (including, without limitation, by means of providing appropriate employees
     with  business  or  identification  cards identifying such employees as the
     Seller's employees);
         (ii)   compensate all  employees,  consultants  and agents for services
     provided to  the  Seller by such  employees, consultants and agents and, to
     the  extent any  employee, consultant  or agent of  the  Seller is  also an
     employee,  consultant or agent of any Diamond Shamrock Entity, allocate the
     compensation of  such employee,  consultant or agent between the Seller and
     such  Diamond Shamrock Entity  on  a  basis  which  reflects  the  services
     rendered to the Seller and such Diamond Shamrock Entity;
         (iii)  clearly  identify  its offices  (by signage or otherwise) as its
     offices;
         (iv)   allocate  all  overhead expenses (including, without limitation,
     telephone  and  other  utility charges) for items shared between the Seller
     and  any Diamond Shamrock  Entity on  the basis of actual use to the extent
     practicable  and,  to  the extent such  allocation is not practicable, on a
     basis reasonably related to actual use;
         (v)    ensure  that all material company actions are duly authorized by
     its Board of Management;
         (vi)   maintain  the  Seller's  books  and  records  separate from  the
     individual books and records of any other Diamond Shamrock Entity;
         (vii)  if  required  by   generally  accepted   accounting  principles,
     prepare its  financial  statements  separately  from those of other Diamond
     Shamrock   Entities   and,   to  the extent  included  in the  consolidated
     financial   statements  of the  Diamond  Shamrock  Entities,  indicate that
     the Seller is  a  limited liability company separate from the other Diamond
     Shamrock Entities included in such consolidated financial statements; and
         (viii)  not commingle funds or other assets of the Seller with those of
     any other Diamond  Shamrock Entity and  not maintain bank accounts or other
     depository  accounts to  which any  other  Diamond  Shamrock  Entity is  an
     account party, into which  any other Diamond Shamrock Entity makes deposits
     or  from  which  any  other  Diamond  Shamrock  etity has the power to make
     withdrawals.
         (n)  With respect to each Receivable and the Participation  Interest in
each Participating Receivable sold by DSRM to the Seller, pay to DSRM reasonably
equivalent  value in  consideration  of the transfer of such  Receivable  or the
Participation Interest in such Participating Receivable, as applicable.
         (o)   Request  that  DSRM hold in trust  and promptly  turn over to the
Collection Agent any Collections received by DSRM on the Seller's behalf.
         (p)  The Collection Agent will promptly notify the Administrative Agent
in the event the  Collection  Agent  discovers or  determines  that any computer
application  (including  those of its suppliers,  vendors and customers) that is
necessary  for the  origination,  collection,  management,  or  servicing of the
Receivables  will not be Year 2000  Compliant  on or before  November  30, 1999.
Further, the Collection Agent will deliver  simultaneously with any quarterly or
annual financial  statements or reports to be delivered under this Agreement,  a
report  signed by an  appropriate  officer that no material  event,  problems or
conditions  have occurred  which in the opinion of  management  would prevent or
materially delay the Collection Agent's plan to become Year 2000 Compliant.
         SECTION 10.2. Reporting Requirements of the Seller. Until the Aggregate
Ownership  Interest is reduced to zero and no further  Purchases are to be made,
the Seller  will,  unless the  Purchasers  shall  otherwise  consent in writing,
furnish to the  Administrative  Agent for each Purchaser (or, in the case of (f)
below, assist the Collection Agent in furnishing to the Administrative Agent for
each Purchaser):
         (a)  (i)  promptly and in any event  within 30 Business  Days after the
Seller or any ERISA  Affiliate  knows or has  reason to know that a  "reportable
event" (as defined in Section  4043 of ERISA) has  occurred  with respect to any
Plan and for which  notice to the PBGC has not been  waived  by  regulations,  a
statement  of an  officer  of  the  Seller  setting  forth  details  as to  such
reportable  event and the action that the Seller or an ERISA Affiliate  proposes
to  take  with  respect  thereto,  together  with a copy of the  notice  of such
reportable event, if any, given to the PBGC, the Internal Revenue Service or the
Department  of Labor;  (ii)  promptly and in any event  within 10 Business  Days
after receipt  thereof,  a copy of any notice the Seller or any ERISA  Affiliate
may receive from the PBGC relating to the intention of the PBGC to terminate any
Plan or to appoint a trustee to administer any such Plan;  (iii) promptly and in
any event  within 10  Business  Days after a filing  with the PBGC  pursuant  to
Section 412(n) of the Code of a notice of failure to make a required installment
or other payment with respect to a Plan, a statement of an officer of the Seller
setting  forth  details as to such  failure and the action that the Seller or an
ERISA Affiliate  proposes to take with respect thereto,  together with a copy of
such notice  given to the PBGC;  and (iv)  promptly  and in any event  within 30
Business Days after receipt  thereof by the Seller or any ERISA  Affiliate  from
the sponsor of a  multiemployer  plan (as defined in Section 3(37) of ERISA),  a
copy of each notice received by the Seller or any ERISA Affiliate concerning the
imposition of withdrawal  liability or a determination that a multiemployer plan
is, or is expected to be, terminated or reorganized;
         (b)  as soon as possible and in any event within  three Business  Days
after the occurrence of any Event of Liquidation, written notice of such event;
         (c)  as soon as possible  and in any event  with  five  days  after the
occurrence  thereof,  written  notice of any  material  change in the Credit and
Collection Policies;
         (d)  such other information,  documents,  records or reports respecting
(i) the Receivables as the Purchaser may from time to time reasonably request or
(ii) in connection with any of the  transactions  contemplated by this Agreement
or the administration of this Agreement, the condition or operations,  financial
or otherwise, of the Seller or any of its subsidiaries as the Purchaser may from
time to time reasonably request;
         (e)  together with  each  Receivables Activity Report,  commencing with
the Receivables Activity Report to be delivered in the month of June, 1999,  and
continuing until such time as all Receivables Systems are Year 2000 Compliant, a
report setting in forth in reasonable  detail the status of efforts to cause all
Receivables Systems to be Year 2000 Compliant; and
         (f)  the Receivables  Activity  Report as required  under  Section 7.4,
together with a  certificate  of an officer of the Seller to the effect that all
of the  representations  and  warranties  contained  in Section 9.1 are true and
correct in all material  respects as of the date of delivery of each Receivables
Activity Report.
         SECTION  10.3.  Negative  Covenants  of the Seller  and the  Collection
Agent. Until the Aggregate  Ownership Interest is reduced to zero and no further
Purchases  are to be made,  neither  the Seller  nor the  Collection  Agent,  as
applicable,  will, unless the  Administrative  Agent on behalf of the Purchasers
has otherwise consented in writing:
         (a)  Except as provided  herein, sell,  assign (by  operation of law or
otherwise)  or  otherwise  dispose of, or create or suffer to exist any security
interest,  lien or encumbrance upon or with respect to Receivables,  Receivables
Assets,  Collections  or the  Blocked  Accounts  or assign  any right to receive
income in respect thereof.
         (b)  Amend or otherwise modify the terms of any  Receivable,  or amend,
modify or waive any term or condition of any contract related thereto other than
in accordance with the Credit and Collection Policies and this Agreement.
         (c)  Make any change in the character  of its business or in the Credit
and  Collection  Policies which would,  in either case, be reasonably  likely to
impair the collectibility or credit quality of any Receivables.
         (d)  Add or  terminate  any bank as a Blocked  Account Bank from  those
listed on Schedule C hereto,  or make any change in its instructions to Obligors
regarding  payments to be made to the Seller,  unless the  Purchaser  shall have
received notice of such addition, termination or change, and with respect to the
addition of any  Blocked  Account, a  Blocked Account Agreement, executed by, as
applicable, the  Seller, DSRM, DSRMNB, the Administrative Agent and such Blocked
Account Bank,  shall have been  delivered to the  Administrative Agent,  in each
case not later  than the  Settlement Date  immediately  following the end of the
calendar quarter in which such event occurred.
         (e)  Deposit  or  otherwise   credit,  or  cause  or  permit  to  be so
deposited or  credited, to any Blocked  Account cash or cash proceeds other than
Collections.
         (f)  Amend or waive  any provision  of the DSRMNB  Participation Agree-
ment,  the  Credit  Card  Receivables  Sale  Agreement  or  the  DSRM  Servicing
Agreement.
         (g)  In the  case  of the  Seller,  enter  into  or be a  party  to any
agreement  or  instrument,  other than in the ordinary  course of business,  and
other than this Agreement,  the Trade Receivables Purchase Agreement, the Credit
Card Receivables Sale Agreement,  the Trade Receivables Sale Agreement, and each
"Revolving  Note" (as defined in the Credit Card  Receivables Sale Agreement and
the Trade Receivables Sale Agreement,  respectively),  or amend, modify or waive
any  provision  in any thereof,  or give any  approval or consent or  permission
provided for in any thereof;
         (h)  In the case of the Seller, engage in any business or enterprise or
enter into any transaction  other than as  contemplated  by this Agreement,  the
Trade Receivables Purchase Agreement, the Credit Card Receivables Sale Agreement
and the Trade Receivables Sale Agreement; or
         (i)  Amend the Certificate of Formation or Limited Liability  Agreement
of the Seller in any manner  which  requires  unanimous  consent of the Board of
Management thereof or which causes any other material change therein.
           ARTICLE XI: INDEMNIFICATIONS; INCREASED COSTS; TAX MATTERS
         SECTION 11.1.  Indemnification  by Seller of Purchasers,  etc.  Without
limiting any other rights which the  Purchasers,  the  Administrative  Agent and
their respective officers, directors,  employees, agents and affiliates may have
hereunder or under  applicable law, the Seller hereby  indemnifies  such parties
(each an "Indemnified  Person") and holds them harmless from and against any and
all  damages,  losses,  claims,  liabilities  and  related  costs  and  expenses
(including reasonable attorneys' fees and disbursements) incurred by any of them
arising out of or resulting from this Agreement or the purchase by any Purchaser
of any Ownership Interest in Receivables, including, without limitation:
         (i)      the reliance by the Administrative Agent  or the Purchasers on
     any representation or  warranty made by the Seller (or any of its officers)
     under or in connection with this Agreement or any Sale Document,  which was
     incorrect in any material respect when made;
         (ii)     the failure  by the Seller or the  Collection  Agent to comply
with any  covenant  set  forth  in this Agreement, whether as Seller, Collection
Agent or otherwise;
         (iii)    the  failure  to  vest  and  maintain  in the Purchaser, or to
transfer  to the Purchasers,  legal and equitable title to, and ownership of, an
undivided  percentage  ownership  interest  (to  the  extent  of  the  Ownership
Interest) in  the Receivables  Assets, free and clear of any security  interest,
lien,  claim or  encumbrance other than any in favor of the Administrative Agent
or any Purchaser that may be created under this Agreement;
         (iv)     the  transfer  by the Seller of an undivided percentage owner-
ship interest in any Receivables other than the Ownership Interest;
         (v)      the Seller's use of proceeds of the Purchases;
         (vi)     the  failure  timely  to  file  financing  statements or other
similar  instruments  or  documents  under  the  Uniform  Commercial Code of any
applicable   jurisdiction   or   other  applicable  laws  with  respect  to  any
Receivables, whether at the time of a Purchase or otherwise;
         (vii)    the return  or transfer by the Collection Agent of any portion
of  Collections  allocable  to the Ownership Interest to the Seller or any other
person for any reason whatsoever;
         (viii)   any dispute, claim,  offset or  defense of any  Obligor to the
payment of any Receivable (including a defense based on such Receivable's or the
related  contract's  not being a legal,  valid and  binding  obligation  of such
Obligor enforceable against it in accordance with its terms), or any other claim
resulting  from the sale,  use,  operation  or  ownership  of or  defects  in or
breaches of warranties with respect to, the merchandise or services  relating to
such  Receivable  or the  furnishing or failure to furnish such  merchandise  or
services;
         (ix)     the  Seller's  failure  to  pay  when due any taxes (including
sales,  excise  or  personal  property  taxes)  payable  in connection with the 
Receivables;
         (x)      the commingling of Collections with other funds of the Seller;
or
         (xi)     the  failure by the Seller to comply with any applicable  law,
rule or regulation with respect to any Receivable, or the  nonconformity  of any
Receivable with any such applicable law, rule or regulation.
If and to the extent that the foregoing undertaking may be unenforceable for any
reason, the Seller hereby agrees to make the maximum contribution to the payment
of the amounts  indemnified  against in this Section which is permissible  under
applicable  law. The  obligation of Seller to indemnify as set forth above shall
not include damages,  losses, claims,  liabilities or related costs or expenses,
arising  solely  from  (i)  except  as  otherwise  provided  in this  Agreement,
Receivables  becoming  Defaulted  Receivables  pursuant clause (2) or (3) of the
definition  of  "Defaulted  Receivable,",  or  (ii) gross negligence  or willful
misconduct of an Indemnified Person seeking indemnification.
         SECTION 11.2.  Indemnification  Due to Failure to Consummate  Purchase.
The Seller will  indemnify the Purchaser on demand and hold it harmless  against
all costs (including, without limitation, breakage costs) and expenses resulting
from any failure by the Seller (i) to consummate a Purchase  after the Purchaser
has  accepted an offer from the Seller to make such  Purchase or (ii) to fulfill
its  obligations  pursuant to Section 6.2, and the Purchaser  will indemnify the
Seller on demand and hold it  harmless  against  all costs  (including,  without
limitation,  breakage costs) and expenses  resulting from any failure by (i) the
Conduit  Purchaser to pay the required  purchase  price after it has accepted an
offer to Purchase  from the Seller,  (ii) the Conduit  Purchaser  to fulfill its
obligations  pursuant to Section 6.2 or (iii) the Back-Stop Purchaser to pay the
required  purchase  price  after a  proper  request  from  the  Seller  for such
purchase..
         SECTION  11.3.  Increased Costs. If due to either: (i) the introduction
of or any change (including, without limitation, any change by way of imposition
or  increase  of  reserve  requirements)  in or in  the  interpretation  by  any
governmental or regulatory  authority or agency of any law or regulation  (other
than  laws or  regulations  relating  to taxes)  or (ii) the  compliance  by any
Purchaser or any lender under any Liquidity Facility or Credit Facility (each, a
"Conduit  Lender")  with any guideline or request from any central bank or other
governmental authority (whether or not having the force of law), (1) there shall
be an increase in the cost to the Purchaser or such Conduit Lender of accepting,
funding or maintaining any Purchase hereunder, (2) there shall be a reduction in
the amount  receivable  with  regard to any  Purchase or (3) such  Purchaser  or
Conduit  Lender shall be required to make a payment  calculated  by reference to
the  Purchases  made  hereunder  or Purchase  Discount  received by it, then the
Seller shall, from time to time, within 30 days from the date the Administrative
Agent makes demand therefor, pay the Administrative Agent for the account of the
applicable Purchaser or Conduit Lender (as a third party beneficiary in the case
of any Conduit Lender),  that portion of such increased costs incurred,  amounts
not received or required  payment made or to be made,  which the  Administrative
Agent   reasonably   determines  is  attributable  to  accepting,   funding  and
maintaining   any  Purchase   hereunder.   In  determining   such  amount,   the
Administrative  Agent may use any reasonable  averaging and attribution methods.
The  applicable  Purchaser  or  Conduit  Lender  shall  submit  to the  Seller a
certificate  as to the existence and amounts of such increased  costs  incurred,
amounts not received or receivable or required payment made or to be made, which
certificate  shall, in the absence of manifest error, be  presumptively  correct
for all  purposes.  Any  Affected  Party that  incurs  such  increased  costs as
described in this Section 11.3 shall use its reasonable efforts (consistent with
its internal policy and legal and regulatory restrictions) to take such steps as
would eliminate or reduce the amount of such increased costs; provided,  that no
such steps shall be required to be taken if, in the reasonable  judgment of such
Affected Party, such steps would be disadvantageous to such Affected Party.
         SECTION  11.4.  Increased Capital. If either (i) the introduction of or
any  change  in  or  in  the  interpretation  by  any governmental or regulatory
authority  or  agency  of  any  law or regulation or (ii) compliance by any Pur-
chaser, the Administrative Agent, any Conduit Lender or any  parent  company  of
the foregoing (each an "Affected Party") with any guideline or request  from any
central bank or other governmental authority (whether or not having the force of
law)  affects  or  would affect the amount of capital required or expected to be
maintained by such Affected Party or such  Affected Party reasonably  determines
that the amount of such  capital  is increased by or based upon the existence of
any  Purchaser's agreement to make or  maintain  or  to consider making or main-
taining Purchases  hereunder  and  other similar agreements or facilities, then,
within 30 days from the date such  Affected  Party  or the  Administrative Agent
makes demand  therefor, the  Seller shall immediately pay to such Affected Party
(as a third party beneficiary, in the case of any  Affected  Party  other than a
Purchaser  or  the Administrative  Agent)  or  the  Administrative Agent for the
account of  such Affected Party from time to time, as specified by such Affected
Party or the  Administrative Agent,  additional amounts sufficient to compensate
such Affected  Party  in light of  such circumstances,  to the  extent that such
Affected  Party or the  Administrative Agent  on behalf  of such  Affected Party
reasonably  determines such increase in capital to be allocable to the existence
any agreement  of a Purchaser hereunder.  A certificate  as to the existence and
amounts of  such increases shall  be submitted  to the  Seller by  such Affected
Party  or the Administrative Agent,  shall, in the absence of manifest error, be
presumptively  correct for all purposes.  Any Affected Party that is entitled to
compensation  for increases  in capital  as described in this Section 11.4 shall
use its  reasonable  efforts (consistent  with its internal policy and legal and
regulatory  restrictions) to  take such  steps as  would eliminate or reduce the
amount of  such compensation;  provided, that no such steps shall be required to
be taken if, in the reasonable judgment of such Affected party, such steps would
be disadvantageous to such Affected Party.
         SECTION  11.5.  Taxes.  (a) Any and all  payments and deposits required
to be made hereunder or under any instrument  delivered  hereunder by the Seller
shall be made,  in  accordance  with Section 7.2,  free and clear of and without
deduction for any and all present or future taxes, levies, imposts,  deductions,
charges or withholdings, and all liabilities with respect thereto, excluding, in
the case of an Affected  Party,  net income taxes that are imposed by the United
States and  franchise  taxes and similar  taxes and net income  taxes,  that are
imposed on such Affected  Party by the state or foreign  jurisdiction  under the
laws of which such Affected Party is organized or in which it is otherwise doing
business or any  political  subdivision  thereof (all such  non-excluded  taxes,
levies,  imposts,  deductions,   charges,  withholdings  and  liabilities  being
hereinafter referred to as "Taxes"). If the Seller or the Collection Agent shall
be  required  by law to deduct any Taxes  from or in respect of any sum  payable
hereunder to any Affected Party, (i) the Seller shall make an additional payment
to such  Affected  Party,  in an amount  sufficient  so that,  after  making all
required deductions  (including deductions applicable to additional sums payable
under this Section  11.5),  such Affected  Party receives an amount equal to the
sum it would have received had no such  deductions been made, (ii) the Seller or
the Collection  Agent,  as the case may be, shall make such deductions and (iii)
the  Seller  or the  Collection  Agent,  as the case may be,  shall pay the full
amount  deducted  to the  relevant  taxation  authority  or other  authority  in
accordance with applicable law.
         (b)  In addition,  the Seller agrees to pay any present or future stamp
or other  documentary  taxes or any other  excise or property  taxes  charges or
similar  levies  which  arise  from  any  payment  made  hereunder  or under any
instrument  delivered hereunder or from the execution,  delivery or registration
of, or otherwise  with respect to, this  Agreement or any  instrument  delivered
hereunder (hereinafter referred to as "Other Taxes").
         (c)  The Seller will indemnify  each  Affected  Party (as a third party
beneficiary,  in the case of any  Affected  Party other than a Purchaser  or the
Administrative  Agent) for the full amount of Taxes or Other  Taxes  (including,
without  limitation,  any Taxes or Other Taxes  imposed by any  jurisdiction  on
amounts payable under this Section  11.5(c)) paid by such Affected Party and any
liability (including penalties, interest and expenses) arising therefrom or with
respect  thereto  whether or not such Taxes or Other  Taxes  were  correctly  or
legally  asserted.  This  indemnification  shall be made within 30 days from the
date the Affected Party makes written demand  therefor.  A certificate as to the
existence and amount of such indemnification shall be submitted to the Seller by
such Affected Party,  setting forth the calculation  thereof,  and shall, in the
absence of manifest error, be presumptively correct for all purposes.
         (d)  Within 30 days after the date of any payment of Taxes,  the Seller
will furnish to the  Administrative  Agent the original or a certified copy of a
receipt evidencing payment thereof.
         (e)  Any  Affected  Party  that  is  entitled  to  the  payment  of any
additional amount pursuant to this Section 11.5 shall use its reasonable efforts
(consistent  with its internal policy and legal and regulatory  restrictions) to
take such steps as would  eliminate  or reduce the amount of payment;  provided,
that no such steps shall be required to be taken if, in the reasonable  judgment
of such Affected  party,  such steps would be  disadvantageous  to such Affected
Party.
         SECTION 11.6. Notices. Each Purchaser shall notify the Seller within 30
Business  Days  of its  knowledge  of a  claim  for  which  it  intends  to seek
indemnification  under Section 11.1 or reimbursement under Section 11.5 from the
Seller.  The  Seller  shall  provide   reasonable   assistance  to  the  parties
indemnified under Section 11.1, to the extent  reasonably  requested by them, in
any action, suit or proceeding brought by or against them in connection with the
indemnification  granted  herein.  The Seller  hereby  agrees that if it assumes
control of the defense in any action,  suit or proceeding  brought by or against
any Indemnified Party, the outcome of any such proceeding will be subject to the
indemnification provisions of Article XI of this Agreement. Each Purchaser shall
notify the Seller of a claim for which it  intends to seek  reimbursement  under
Sections  11.3 or 11.4 from the Seller;  provided,  however,  that in connection
with any such notice, the applicable  Purchaser shall not be entitled to receive
reimbursement in respect of any otherwise reimbursable amount under Section 11.3
or 11.4 to the extent that such amount was  incurred  more than 60 days prior to
the date of such notice.
                           ARTICLE XII: MISCELLANEOUS
         SECTION  12.1.  Amendments,  Etc. No  amendment  or  waiver of, or con-
sent to the Seller's  departure  from, any provision of this Agreement  shall be
effective unless it is in writing and signed by the parties hereto and then such
amendment,  waiver or consent shall be effective  only in the specific  instance
and for the specific purpose for which it was given.
         SECTION  12.2.  Notices,  Etc.  All  notices  and other  communications
provided for hereunder shall,  unless otherwise stated herein,  be in writing or
by a  telecommunications  device capable of creating a written record, and sent,
as to each  party  hereto,  at its  address  set  forth  under  its  name on the
signature pages hereto,  or at such other address as shall be designated by such
party in a written  notice to the other  parties  hereto.  All such  notices and
communications shall be effective (a) upon personal delivery thereof, including,
but not limited to,  delivery by overnight  mail and courier  service,  (b) upon
receipt  after it shall have been mailed by United  States mail,  first class or
certified or registered,  with postage prepaid,  or (c) in the case of notice by
such a telecommunications device, when properly transmitted, except that notices
and  communications  to an Purchaser  pursuant to Section 6.2 shall be effective
when received by such Purchaser.
         SECTION 12.3.  [Reserved].
         SECTION  12.4.  No  Waiver;  Remedies.  No  failure  on the part of the
Administrative  Agent or any Purchaser to exercise,  and no delay in exercising,
any  right  hereunder  or under  any Sale  Document  shall  operate  as a waiver
thereof;  nor  shall any  single  or  partial  exercise  of any right  hereunder
preclude  any other or further  exercise  thereof or the  exercise  of any other
right.  The remedies  herein  provided are  cumulative  and not exclusive of any
remedies provided by law.
         SECTION 12.5. Binding Effect;  Assignability.  (a) This Agreement shall
be binding  upon and inure to the benefit of the  Seller,  each  Purchaser,  the
Administrative  Agent and their respective  successors and assigns,  except that
the Seller  shall not have the right to assign any interest  herein  without the
prior written consent of each Purchaser and the  Administrative  Agent,  and the
Purchaser  shall not have the  right to assign  any  interest  herein  except in
accordance with paragraph (b) below.  This Agreement shall create and constitute
the continuing  obligation of the parties  hereto in accordance  with its terms,
and shall  remain in full  force and  effect  until  such time as the  Ownership
Interest is reduced to zero and no further  Purchases are to be made;  provided,
however, that rights and remedies of the Purchasers and the Administrative Agent
under  Article XI and  Section  5.3 and the  provisions  of Section  12.11 shall
survive any termination of this Agreement.
         (b)  The Conduit Purchaser may assign its interests  hereunder  without
the  consent of the  Seller,  to CIBC,  any  affiliate  of CIBC,  any  financial
institution  providing  a Liquidity  Facility or Credit  Facility or any vehicle
organized by CIBC or by any  affiliate  thereof.  Any  Purchaser  may assign its
interests  hereunder  to any other  Person  with the prior  written  consent  of
Seller, such consent not to be unreasonably  withheld.  Upon any assignment by a
Purchaser,  the assignee shall become the owner of the  Purchaser's  interest in
the Receivables  Assets purchased  hereunder for all purposes of this Agreement.
Upon  any  assignment,  the  assignee  thereof  shall  have all the  rights  and
obligations  of a Purchaser  under this  Agreement,  and shall be subject to the
same terms and  conditions  of this  Agreement.  The  parties to this  Agreement
acknowledge that the Conduit  Purchaser  has  assigned and shall be permitted to
continue  to assign  (without  consent)  to CIBC,  as  collateral  agent for the
benefit of the holder of the debt instruments issued by the Conduit Purchaser, a
security interest in all of the Conduit Purchaser's right, title and interest in
and to, among other things,  all rights of the Conduit  Purchaser in and to this
Agreement  and  other  securitization  agreements  entered  into by the  Conduit
Purchaser  with other sellers and the assets  purchased from or assigned by such
other sellers pursuant thereto.
         SECTION  12.6.  GOVERNING  LAW.  THIS  AGREEMENT  SHALL BE GOVERNED BY,
AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.
         SECTION 12.7. Construction of the Agreement.  The parties hereto intend
that the  conveyance  of the  Ownership  Interest in  Receivables  Assets by the
Seller to the  Purchasers  shall be treated as sales for  purposes of  generally
accepted accounting  principles.  If, despite such intention, a determination is
made that such  transactions  shall not be treated as sales, then this Agreement
shall be  interpreted  to constitute a security  agreement and the  transactions
effected  hereby  shall be  deemed to  constitute  a  secured  financing  by the
Purchasers  to the Seller under  applicable  law. For such  purpose,  the Seller
hereby grants to the  Administrative  Agent for the benefit of the  Purchasers a
continuing  security  interest to the extent of such  Ownership  Interest in the
Receivables  Assets and  Collections to secure the  obligations of the Seller to
the Purchasers hereunder.
         SECTION 12.8. No Proceedings.  The Seller, the Back-Stop Purchaser, the
Administrative  Agent and the  Collection  Agent each hereby agrees that it will
not  institute  against the Conduit  Purchaser any  bankruptcy,  reorganization,
insolvency  or  similar  proceeding  under any  federal or state  bankruptcy  or
similar law, for one year and a day after the latest maturing  commercial  paper
note or other rated indebtedness  (whether or not issued to fund the purchase or
maintenance of the Ownership Interest hereunder) issued by the Conduit Purchaser
is paid.
         SECTION 12.9.  Confidentiality.  The Purchasers and the  Administrative
Agent agree to maintain the  confidentiality  of any  information  regarding the
Seller, the Collection Agent or the Receivables  obtained in accordance with the
terms of this Agreement  which is not publicly  available,  but any Purchaser or
the  Administrative  Agent may reveal such information (a) to applicable  rating
agencies, liquidity providers and credit providers, provided that such liquidity
providers and credit  providers  agree to maintain the  confidentiality  of such
information on the same terms that Purchaser is required to do so hereunder, (b)
as reasonably  necessary or appropriate in connection with the administration or
enforcement  of this  Agreement,  (c) as reasonably  necessary or appropriate in
connection with its funding of purchases under this Agreement, provided that any
private third parties to whom such  information  is disclosed  agree to maintain
the  confidentiality  of such  information on the same terms as the Purchaser is
required to do so  hereunder,  (d) as required  by law,  government  regulation,
court proceeding or subpoena or (e) to bank regulatory agencies and examiners.
         SECTION  12.10.  Execution  in  Counterparts.  This  Agreement  may  be
executed  in any  number of  counterparts  and by  different  parties  hereto in
separate  counterparts,  each of which when so executed shall be deemed to be an
original and all of which when taken together shall  constitute one and the same
agreement.
         SECTION 12.11.  Severability  Clause.  Any provisions of this Agreement
which are prohibited or  unenforceable  in any  jurisdiction  shall,  as to such
jurisdiction,   be   ineffective   to  the   extent  of  such   prohibition   or
unenforceability  without  invalidating the remaining provisions hereof, and any
such prohibition or unenforceability in any jurisdiction shall not invalidate or
render unenforceable such provision in any other jurisdiction.
         SECTION 12.12.  SUBMISSION TO JURISDICTION; APPOINTMENT OF
AGENT TO ACCEPT SERVICE OF PROCESS.
         (A)  THE  SELLER  AND  THE  COLLECTION   AGENT  HEREBY  SUBMIT  TO  THE
NONEXCLUSIVE  JURISDICTION  OF THE  COURTS  OF THE  STATE OF NEW YORK AND OF ANY
FEDERAL COURT  LOCATED IN SUCH STATE IN ANY ACTION OR PROCEEDING  ARISING OUT OF
OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS  CONTEMPLATED  HEREBY. EACH OF
THE SELLER AND THE COLLECTION  AGENT  IRREVOCABLY  WAIVES ANY OBJECTION WHICH IT
MAY HAVE TO THE  LAYING OF VENUE OF ANY SUCH  PROCEEDING  AND ANY CLAIM THAT ANY
SUCH PROCEEDING HAS BEEN BROUGHT IN AN INCONVENIENT FORUM.
         (B)  EACH  OF THE  SELLER  AND THE  COLLECTION  AGENT  HAS  IRREVOCABLY
APPOINTED CT CORPORATION SYSTEM AS ITS AGENT TO RECEIVE,  ACCEPT AND ACKNOWLEDGE
FOR AND ON ITS BEHALF,  SERVICE OF ANY AND ALL LEGAL PROCESS,  SUMMONS,  NOTICES
AND  DOCUMENTS  WHICH MAY BE SERVED IN ANY SUCH  PROCEEDING  BROUGHT IN ANY SUCH
COURT WHICH MAY BE MADE ON SUCH AGENT.  IF FOR ANY REASON SUCH AGENT SHALL CEASE
TO BE  AVAILABLE  TO ACT AS SUCH,  EACH OF THE SELLER AND THE  COLLECTION  AGENT
AGREES TO DESIGNATE A NEW AGENT IN THE CITY OF NEW YORK ON THE TERMS AND FOR THE
PURPOSES OF THIS SECTION 12.11 SATISFACTORY TO THE PURCHASER.
         IN WITNESS WHEREOF, the parties have caused this Agreement to be signed
by their duly authorized  officers as of the date set forth on the cover page of
this Agreement.
                           COYOTE FUNDING, L.L.C.
                             as Seller
                           By:    /s/ ▇▇▇▇▇ ▇▇▇▇▇
                              Name:   ▇▇▇▇▇ ▇▇▇▇▇
                              Title:  Vice President and Treasurer
                           Address:     ▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇ ▇▇▇▇
                                        ▇▇▇ ▇▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇-▇▇▇▇
                           Attention:   Treasurer
                           Telephone No.: (▇▇▇) ▇▇▇-▇▇▇▇
                           Facsimile No.: (▇▇▇) ▇▇▇-▇▇▇▇
                           DIAMOND SHAMROCK REFINING AND
                           MARKETING COMPANY
                             as Collection Agent
                           By:    /s/ ▇▇▇▇▇ ▇▇▇▇▇
                              Name:   ▇▇▇▇▇ ▇▇▇▇▇
                              Title:  Vice President and Treasurer
                           Address:     ▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇ ▇▇▇▇
                                        ▇▇▇ ▇▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇-▇▇▇▇
                           Attention:   Treasurer
                           Telephone No.: (▇▇▇) ▇▇▇-▇▇▇▇
                           Facsimile No.: (▇▇▇) ▇▇▇-▇▇▇▇
                           ASSET SECURITIZATION COOPERATIVE
                            CORPORATION,
                              as Conduit Purchaser
                           By:   /s/ ▇▇▇▇ ▇▇▇▇▇▇▇
                              Name:  ▇▇▇▇ ▇▇▇▇▇▇▇
                              Title: Controller
                           Address:     ▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇
                                        ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇  ▇▇▇▇▇
                           Attention:   Asset Securitization Group
                           Telecopier:  (▇▇▇) ▇▇▇-▇▇▇▇
                           CANADIAN IMPERIAL BANK OF COMMERCE,
                             as Back-Stop Purchaser
                           By:    /s/ ▇▇▇▇ ▇▇▇▇▇▇
                              Name:   ▇▇▇▇ ▇▇▇▇▇▇
                              Title:  Authorized Signatory
                           Address:     ▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇
                                        ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇  ▇▇▇▇▇
                           Attention:   Asset Securitization Group
                           Telecopier:  (▇▇▇) ▇▇▇-▇▇▇▇
                           CANADIAN IMPERIAL BANK OF COMMERCE,
                             as Administrative Agent
                           By:    /s/ ▇▇▇▇ ▇▇▇▇▇▇
                              Name:   ▇▇▇▇ ▇▇▇▇▇▇
                              Title:  Authorized Signatory
                           Address:     ▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇
                                        ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇  ▇▇▇▇▇
                           Attention:   Asset Securitization Group
                           Telecopier:  (▇▇▇) ▇▇▇-▇▇▇▇