This Note is a Global Note within the meaning
     of the Base Indenture hereinafter referred to and is
     registered in the name of a Depositary or a nominee of a
     Depositary.  This Note is exchangeable for Notes
     registered in the name of a person other than the
     Depositary or its nominee only in the limited
     circumstances described in the Base Indenture, and no
     transfer of this Note (other than a transfer of this Note
     as a whole by the Depositary to a nominee of the
     Depositary or by a nominee of the Depositary to the
     Depositary or another nominee of the Depositary) may be
     registered except in limited circumstances.
     
               Unless this Note is presented by an authorized
     representative of The Depository Trust Company, a New
     York corporation ("DTC"), to the issuer or its agent for
     registration of transfer, exchange or payment, and any
     Note issued is registered in the name of Cede & Co. or in
     such other name as is requested by an authorized
     representative of DTC (and any payment is made to Cede &
     Co. or to such other entity as is requested by an
     authorized representative of DTC), ANY TRANSFER, PLEDGE
     OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY
     PERSON IS WRONGFUL inasmuch as the registered owner
     hereof, Cede & Co., has an interest herein.
     
     No. 1                                 CUSIP No. 904000AA4
                                           $200,000,000
     
     ULTRAMAR DIAMOND SHAMROCK CORPORATION
     
     NOTE
     DUE OCTOBER 15, 2017
     
               ULTRAMAR DIAMOND SHAMROCK CORPORATION, a
     corporation organized under the laws of the State of
     Delaware (herein called the "Company", which term
     includes any successor corporation under the Base Indenture
     hereinafter referred to), for value received, hereby
     promises to pay to Cede & Co., or registered assigns, the
     principal sum of Two Hundred Million Dollars
     ($200,000,000) on October 15, 2017 and to pay interest
     thereon from October 14, 1997, or from the most recent
     interest payment date to which interest has been paid or
     duly provided for, semi-annually in arrears on April 15
     and October 15 of each year, commencing April 15, 1998,
     at a rate of 7.20% per annum until the principal hereof
     is paid or made available for payment, and on any overdue
     principal and premium, if any, at a rate of 7.20% per
     annum and (without duplication and to the extent that
     payment of such interest is enforceable under applicable
     law) on any overdue installment of interest at a rate of
     7.20% per annum compounded semi-annually.  The interest
     so payable, and punctually paid or duly provided for, on
     any Interest Payment Date (as defined below) shall be
     calculated as provided in the Base Indenture.  In the
     event that any date on which interest is payable on this
     Note is not a Business Day, then payment of interest
     payable on such date will be made on the next succeeding
     day that is a Business Day, with the same force and
     effect as if made on such date and no interest shall
     accrue on the amount so payable from the period from and
     after such Interest Payment Date or Maturity Date, as the
     case may be (each date on which interest is actually
     payable, an "Interest Payment Date").  The interest
     installment so payable, and punctually paid or duly
     provided for, on any Interest Payment Date will, as
     provided in the Base Indenture, be paid to the person in
     whose name this Note (or one or more Predecessor Security, as
     defined in said Base Indenture) is registered at
     the close of business on the regular record date for such
     interest installment, which shall be the close of business on
     the April 1 and October 1 next preceding such
     Interest Payment Date.  Any such interest installment not
     punctually paid or duly provided for shall forthwith
     cease to be payable to the registered Holders on such
     regular record date and may be paid to the Person in
     whose name this Note (or one or more Predecessor Security) is
     registered at the close of business on a special
     record date to be fixed by the Trustee for the payment of
     such defaulted interest, notice whereof shall be given to
     the registered Holders of Notes not less than 10 days
     prior to such special record date, or may be paid at any
     time in any other lawful manner not inconsistent with the
     requirements of any securities exchange on which the
     Notes may be listed, and upon such notice as may be
     required by such exchange, all as more fully provided in
     the Base Indenture.  The principal of (and premium, if
     any) and the interest on this Note shall be payable at
     the office or agency of the Trustee maintained for that
     purpose in any coin or currency of the United States of
     America that at the time of payment is legal tender for
     payment of public and private debts; provided, however,
     that payment of interest may be made, at the option of
     the Company and upon prior notice to the Trustee, by
     check mailed to the registered Holder at such address as
     shall appear in the Security Register or by wire transfer
     to an account designated by a Holder in writing not less
     than ten days prior to the date of payment.
     
               The indebtedness evidenced by this Note is, to
     the extent provided in the Base Indenture, equal in right
     of payment with all other unsecured and unsubordinated
     indebtedness of the Company, and this Note is issued
     subject to the provisions of the Base Indenture and First
     Supplemental Indenture with respect thereto.  Each Holder
     of this Note, by accepting the same, agrees to and shall
     be bound by such provisions, and authorizes and directs
     the Trustee on his or her behalf to be bound by such
     provisions.  Each Holder hereof, by his or her acceptance
     hereof, hereby waives all notice of the acceptance of the
     provisions contained herein and in the Base Indenture and
     First Supplemental Indenture by each holder of unsecured
     and unsubordinated indebtedness of the Company, whether
     now outstanding or hereafter incurred, and waives reliance by
     each such holder or creditor upon said provisions.
     
               The First Supplemental Indenture provides for
     the redemption by the Company of this Note at any time,
     subject to the terms and conditions therein.  Each Holder
     of this Note, by accepting the same, (a) authorizes and
     directs the Trustee on his or her behalf to take such
     action as may be necessary or appropriate to acknowledge
     or effectuate the limitations so provided and (b) appoints the
     Trustee his or her attorney-in-fact for any
     and all such purposes.
     
               This Note shall not be entitled to any benefit
     under the Base Indenture hereinafter referred to, or be
     valid or become obligatory for any purpose until the
     Certificate of Authentication hereon shall have been
     signed by or on behalf of the Trustee.
     
               The provisions of this Note are continued on
     the reverse side hereof and such continued provisions
     shall for all purposes have the same effect as though
     fully set forth at this place.
          
          IN WITNESS WHEREOF, the Company has caused this
     instrument to be executed.
     
                         ULTRAMAR DIAMOND SHAMROCK CORPORATION
     
                         By:  /s/   Steve Blank
                            Name:   Steve Blank
                            Title:  Vice President and Treasurer
     
     
     Attest:
     
     By:  /s/  Harold D. Mallory
        Name:  Harold D. Mallory
        Title: Managing Attorney and
               Assistant Corporate Secretary
     
     
     
     
                   CERTIFICATE OF AUTHENTICATION
     
               This is one of the Securities of the series
     designated therein referred to in the within-mentioned
     Base Indenture.
     
     
                              THE BANK OF NEW YORK,
                              as Trustee
     
     
                                By:  /s/ Walter Gitlin
                                     Authorized Signatory
     
     
          Dated:  October 14, 1997


                     (FORM OF REVERSE OF NOTE)
     
               This Note is one of a duly authorized series of
     securities of the Company (herein sometimes referred to
     as the "Securities"), issued or to be issued in one or
     more series under and pursuant to an Indenture dated as
     of March 15, 1995 (the "Base Indenture"), duly executed
     and delivered between the Company and The Bank of New
     York, as Trustee (the "Trustee"), as supplemented by the
     First Supplemental Indenture dated as of October 14, 1997
     (the "First Supplemental Indenture"), between the Company
     and the Trustee, to which Base Indenture and First
     Supplemental Indenture reference is hereby made for a description
     of the rights, limitations of rights, obligations, duties and
     immunities thereunder of the Trustee, the Company and the Holders of
     the Securities.  By the terms of the Base Indenture, the Securities
     are issuable in series that may vary as to amount, date of maturity,
     rate of interest and in other respects as provided in the
     Base Indenture.  This Security is one of the series
     designated on the face hereof (the "Notes") and is limited in
     aggregate principal amount as specified in said
     First Supplemental Indenture.
     
               In case an Event of Default, as defined in the
     Base Indenture, shall have occurred and be continuing,
     the principal of all of the Notes may be declared due and
     payable, in the manner, with the effect and subject to
     the conditions provided in the Base Indenture.
     
               The Base Indenture contains provisions permitting
     the Company and the Trustee, with the consent of the
     Holders of not less than a majority in aggregate principal
     amount of the Outstanding Securities of each series
     affected to execute supplemental indentures for the
     purpose of adding any provisions to the Base Indenture or
     of modifying in any manner the rights of the Holders of
     the Securities; provided, however, that no such supplemental
     indenture shall (i) change the Maturity of the
     principal of, or the Stated Maturity of any premium on,
     or any installment of interest on, any Security, or
     reduce the principal amount thereof or the interest or
     any premium thereon, or change the method of computing
     the amount of principal thereof or interest thereon on
     any date or change any Place of Payment where, or the
     coin or currency in which, any Security or any premium or
     interest thereon is payable, or change the coin or currency in
     which any Security is denominated, or impair the
     right to institute suit for the enforcement of any such
     payment on or after the Maturity or the Stated Maturity,
     as the case may be, thereof (or, in the case of redemption or
     repayment, on or after the Redemption Date or the
     Repayment Date, as the case may be); or (ii) reduce the
     percentage in principal amount of the Outstanding Securities
     of any series, the Holders of which are required to
     consent to any such supplemental indenture or to waive
     compliance with certain provisions of the Base Indenture
     or certain defaults thereunder and their consequences
     provided for in the Base Indenture; or (iii) modify any
     of the provisions of the Base Indenture relating to
     supplemental indentures or the waiver of defaults, except
     to increase any such percentage or to provide that certain
     other provisions of the Base Indenture cannot be
     modified or waived, without the consent of the Holders of
     each Outstanding Security affected thereby.  The Base
     Indenture also contains provisions permitting the Holders
     of not less than a majority in principal amount of the
     Outstanding Securities of any series affected thereby, on
     behalf of all of the Holders of the Securities of such
     series, to waive any past Default under the Base Indenture,
     and its consequences, except a Default in the
     payment of the principal of, premium, if any, or interest
     on any of the Securities of such series or a Default in
     respect of a covenant or provision of the Base Indenture
     which cannot be modified or amended without the consent
     of the Holder of each Outstanding Security of such series
     affected.  Any such consent or waiver by the registered
     Holder of this Note (unless revoked as provided in the
     Base Indenture) shall be conclusive and binding upon such
     Holder and upon all future Holders and owners of this
     Note and of any Note issued in exchange therefor or in
     place hereof (whether by registration of transfer or
     otherwise), irrespective of whether or not any notation
     of such consent or waiver is made upon this Note.
     
               No reference herein to the Base Indenture or
     First Supplemental Indenture and no provision of this
     Note or of the Base Indenture or First Supplemental
     Indenture shall alter or impair the obligation of the
     Company, which is absolute and unconditional, to pay the
     principal of and premium, if any, and interest on this
     Note at the time and place and at the rate and in the
     money herein prescribed.
     
               As provided in the Base Indenture and subject
     to certain limitations therein set forth, this Note is
     transferable by the registered Holder hereof on the
     Security Register of the Company, upon surrender of this
     Note for registration of transfer at the office or agency
     of the Trustee in New York, New York duly endorsed by the
     registered Holder hereof or accompanied by a written
     instrument or instruments of transfer in form satisfactory to
     the Company and the Security Registrar duly
     executed by the registered Holder hereof or his attorney
     duly authorized in writing, and thereupon one or more new
     Notes of this series of authorized denominations and for
     the same aggregate principal amount will be issued to the
     designated transferee or transferees.
     
               No service charge will be made for any such
     transfer, but the Company may require payment of a sum
     sufficient to cover any tax or other governmental charge
     payable in relation thereto.
     
               Prior to due presentment of this Note for
     registration of transfer of this Note, the Company, the
     Trustee, and any agent of the Company or the Trustee may
     treat the registered holder hereof as the owner hereof
     (whether or not this Note shall be overdue) and neither
     the Company, the Trustee nor any such agent shall be
     affected by notice to the contrary.
     
               No recourse shall be had for the payment of the
     principal of or the interest on this Note, or for any
     claim based hereon, or otherwise in respect hereof, or
     based on or in respect of the Base Indenture, against any
     incorporator, stockholder, officer or director, past,
     present or future, as such, of the Company or of any
     predecessor or successor corporation, whether by virtue
     of any constitution, statute or rule of law, or by the
     enforcement of any assessment or penalty or otherwise,
     all such liability being, by the acceptance hereof and as
     part of the consideration for the issuance hereof, expressly 
     waived and released.
     
               This Global Note is exchangeable for Notes in
     definitive form only under certain limited circumstances
     set forth in the Base Indenture.  Notes so issued are
     issuable only in registered form without coupons in
     denominations of $1,000 and any integral multiple
     thereof.  As provided in the Base Indenture and subject
     to certain limitations herein and therein set forth,
     Notes of this series so issued are exchangeable for a
     like aggregate principal amount of Notes of a different
     authorized denomination, as requested by the Holder
     surrendering the same.
     
               All terms used in this Note that are defined in
     the Base Indenture or First Supplemental Indenture shall
     have the meanings assigned to them therein.
     
               THE BASE INDENTURE, THE FIRST SUPPLEMENTAL
     INDENTURE AND THE NOTES SHALL BE CONSTRUED IN ACCODANCE
     WITH AND GOVERNED BY THE LAWS OF THE STATE OF NEW YORK.
     
     2017.wp