VALERO REFINING & MARKETING CO
S-8, 1997-07-21
NATURAL GAS TRANSMISISON & DISTRIBUTION
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As filed with the Securities and Exchange Commission on July 21, 1997

                                              Registration No. 333-

                SECURITIES AND EXCHANGE COMMISSION
                     Washington, D.C.  20549

                             FORM S-8
                      REGISTRATION STATEMENT
                              Under
                    THE SECURITIES ACT OF 1933

              VALERO REFINING AND MARKETING COMPANY
      (Exact name of registrant as specified in its charter)

                Delaware                               74-1828067
      (State or other jurisdiction of                (I.R.S. Employer
     incorporation or organization)                Identification No.)

           530 McCullough Avenue
           San Antonio, Texas                            78215
(Address of Principal Executive Offices)               (Zip Code)

              VALERO REFINING AND MARKETING COMPANY 
                  EXECUTIVE STOCK INCENTIVE PLAN
                     (Full title of the plan)

                      GREGORY C. KING, ESQ.
                      530 McCullough Avenue
                    San Antonio, Texas  78215
                          (210) 246-2030
    (Name, address, including zip code, and telephone number,
            including area code, of agent for service)

                    CALCULATION OF REGISTRATION FEE

                                                  Proposed
                                   Proposed       maximum
Title of              Amount       offering       aggregate   Amount of
Securities to         to be        price          offering    registration
be registered         registered   per share(1)   price(1)    fee

Common Stock, par
   value $.01 per
   share(2)           2,500,000    $27.68         $69,200,000 $20,970
                        shares

Preferred Share
   Purchase
   Rights(2)(3)       2,500,000    n/a            n/a         n/a
                        rights

(1)   The registration fee for the securities registered hereby has
      been calculated pursuant to Rule 457(f)(2) under the
      Securities Act and is based upon the book value of the Common Stock
      computed as of May 31, 1997.
(2)   There are also registered hereby such indeterminate number of shares
      of Common Stock as may become issuable by reason of the
      anti-dilution provisions of the Executive Stock Incentive Plan.
(3)   Until the Distribution Date (as defined in the Rights Agreement
      listed as an exhibit hereto) the Preferred Share Purchase Rights
      trade with and are represented by the certificates for the
      Common Stock.

<PAGE>

                             PART II
        INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3.  Incorporation of Documents by Reference.

     The Valero Refining and Marketing Company ("Valero") documents listed
in clauses (a) through (c) below are incorporated by reference in this
Registration Statement.  All documents subsequently filed by the registrant
pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange
Act of 1934, as amended, prior to the filing of a post-effective amendment
which indicates that all securities offered have been sold or which
deregisters all securities then remaining unsold, shall be deemed to be
incorporated by reference in this Registration Statement and to be a part
hereof from the date of filing of these documents.

     (a)  Registration Statement on Form S-1 dated May 13, 1997
          (Registration No. 333-27013)(the "Registration Statement").

     (b)  Quarterly Report on Form 10-Q for the quarterly period ended
          March 31, 1997.

     (c)  Registration Statement on Form 8-A dated July 9, 1997, as
          amended, and the description of Valero's Common Stock, $.01
          par value (the "Common Stock"), contained therein.

Item 5.  Interests of Named Experts and Counsel.

     The validity of the issuance of the Common Stock offered hereby will
be passed upon for Valero by Gregory C. King, Esq., Associate General
Counsel and an employee of Valero Energy Corporation ("VEC").  VEC is
currently  the sole stockholder of Valero.  VEC has entered into that
certain Agreement and Plan of Merger dated January 31, 1997 (the "Merger
Agreement"), with PG&E Corporation ("PG&E") and PG&E Acquisition
Corporation ("PG&E Sub"), pursuant to which PG&E Sub will merge with and
into VEC (the "Merger") on July 31, 1997 and VEC will become a wholly
owned subsidiary of PG&E.  The Merger Agreement contemplates that prior
to the Merger, VEC will distribute (the "Distribution") one share of
Valero's Common Stock to VEC's stockholders for each share of VEC Common
Stock, $1.00 par value ("VEC Common Stock") held by each VEC stockholder.
At June 30, 1997, Mr. King beneficially owned approximately 7,300 shares
of VEC Common Stock (including shares held under employee benefit plans)
and held options under employee stock option plans of VEC to purchase
approximately 33,250 additional shares of VEC Common Stock.  Following
the Distribution, Mr. King will beneficially own an equal number of
shares of Valero Common Stock, and his options under employee stock
option plans will be converted into options exercisable for shares of
Valero Common Stock.

     The audited consolidated financial statements of Valero together
with its subsidiaries contained in the Registration Statement and
incorporated by reference herein have been audited by Arthur Andersen
LLP, independent public accountants, as indicated in their reports with
respect thereto, and are included herein in reliance upon the authority
of said firm as experts in accounting and auditing in giving said report.

Item 6.  Indemnification of Directors and Officers.

     The terms of Valero's Restated Certificate of Incorporation, as
amended (the "Restated Certificate of Incorporation"), eliminate the
personal liability of a director to Valero and its stockholders for
monetary damages for breach of his or her fiduciary duty as a director
to the extent allowed under the Delaware General Corporation Law.  Except
as provided below, if a director were to breach his or her fiduciary duty
as a director, neither Valero nor its stockholders could recover monetary
damages from the director, and the only remedies available to Valero's
stockholders would be equitable remedies, such as an action to enjoin or
rescind a transaction involving a breach of fiduciary duty.  To the extent
certain claims against directors are limited to equitable remedies, the
provision in Valero's Restated Certificate of Incorporation may reduce the
likelihood of derivative litigation and may discourage stockholders or
management from initiating litigation against directors for breach of their
fiduciary duty.  Additionally, equitable remedies may not be effective in
many situations.  If a stockholder's only remedy is to enjoin the completion
of the action of the Board of Directors, this remedy would be ineffective if
the stockholder does not become aware of a transaction or event until after
it has been completed.  In this situation, it is possible that the
stockholders and Valero would have no effective remedy against the directors.
Under Valero's Restated Certificate of Incorporation, a director remains
liable for monetary damages for (i) any breach of the duty of loyalty to
Valero or its stockholders, (ii) act or omissions not in good faith or that
involve intentional misconduct or a knowing violation of law, (iii) payment
of an improper dividend or improper repurchase or redemption of Valero's
stock under Section 174 of the Delaware General Corporation Law, or (iv)
any transaction from which the director derived an improper personal
benefit.

     Under Article V of the Restated Certificate of Incorporation, Article
VII of Valero's By-laws, and under indemnification agreements with Valero's
officers and directors (the "Indemnity Agreement"), each person who is or was
a director or officer of Valero or a subsidiary of Valero, or who serves or
served any other enterprise or organization at the request of Valero or a
subsidiary of Valero, shall be indemnified by Valero to the full extent
permitted by the Delaware General Corporation Law.

     Under this law, to the extent that such person is successful on the
merits or otherwise in defense of a suit or proceeding brought against this
person by reason of the fact that he or she is or was a director or officer of
Valero, or serves or served any other enterprise or organization at the
request of Valero, this person shall be indemnified against expenses
(including attorneys' fees) actually and reasonably incurred in connection
with the action.

     Under the Delaware General Corporation Law, Valero generally has the
power to indemnify its present and former directors, officers, employees and
agents against expenses and liabilities incurred by them in connection with
any suit to which they are, or are threatened to be made, a party by reason
of their serving in these positions so long as they acted in good faith and
in a manner they reasonably believed to be in, or not opposed to, the best
interests of Valero, and with respect to any criminal action, they had no
reasonable cause to believe their conduct was unlawful.  With respect to
suits by or in the right of Valero, however, indemnification is generally
limited to attorneys' fees and other expenses, indemnification is not
available if the person is adjudged to be liable to Valero unless the
ourt determines that indemnification is appropriate.

     The Indemnity Agreement provides directors and officers with specific
contractual assurance that indemnification and advancement of expenses will
be available to them regardless of any amendments to or revocation of the
indemnification provisions of Valero's By-laws.  The Indemnity Agreement
provides for indemnification of directors and officers against both
stockholder derivative claims and third-party claims.  Sections 124(a)
and 145(b) of the Delaware General Corporation Law, which grant corporations
the power to indemnify directors and officers, specifically authorize lesser
indemnification in connection with derivative claims than in connection with
third-party claims.  The distinction is that Section 145(a), concerning
third-party claims, authorizes expenses and judgments and amounts paid in
settlement (as is provided in the Indemnity Agreement), while Section
145(b), concerning derivative suits, generally authorizes only
indemnification of expenses.  However, Section 145(f) expressly provides
that the indemnification and advancement of expenses provided by or granted
pursuant to the subsections of Section 145 shall not be exclusive of any
other rights to which those seeking indemnification or advancement of
expenses may be entitled under any agreement.  No Delaware case directly
clarifies whether Delaware's public policy would support this aspect of the
Indemnity Agreement under the authority of Section 145(f), or would
invalidate the Indemnity Agreement because it does not conform to the
distinctions contained in Section 145(a) and 145(b).  However, Delaware
courts have determined that a corporation can obligate itself by express
written contract to provide advancement of expenses not otherwise required
by statute, and that the public policy of Delaware does not prevent a
corporation from making these advances mandatory.

     Delaware corporations also are authorized to obtain insurance to protect
officers and directors from certain liabilities, including liabilities against
which the corporation cannot indemnify its directors and officers.  Valero
currently has in effect a directors' and officers' liability insurance policy.

Item 8.  Exhibits

The following is an index of exhibits filed or incorporated by reference as
part of this Registration Statement.

Exhibit
   No.

           3.1 --   Restated Certificate of Incorporation of Valero
                    Refining and Marketing Company--incorporated by
                    reference from Exhibit 3.1 to the Valero Refining
                    and Marketing Company Registration Statement on
                    Form S-1 (Registration No. 333-27013, filed May 13,
                    1997).
           3.2 --   By-Laws of Valero Refining and Marketing
                    Company--incorporated by reference from Exhibit 3.2 to
                    the Valero Refining and Marketing Company Registration
                    Statement on Form S-1 (Registration No. 333-27013,
                    filed May 13, 1997).
          *4.1 --   Rights Agreement between Valero Refining and Marketing
                    Company and Harris Trust and Savings Bank.
           4.2 --   Form of Credit Agreement among Valero Refining and
                    Marketing Company, Morgan Guaranty Trust Company
                    Company of New York, Bank of Montreal and the banks
                    and co-agents party thereto--incorporated by
                    reference from Exhibit 4.2 to the Valero Refining and
                    Marketing Company Registration Statement on
                    Form S-1 (Registration No. 333-27013, filed May 13,
                    1997).
          *5.1 --   Opinion of Gregory C. King, Esq. (including Consent of
                    Counsel).
         *23.1 --   Consent of Arthur Andersen LLP dated July 18, 1997.
         *23.2 --   Consent of Arthur Andersen LLP dated July 18, 1997.
         *23.3 --   Consent of Counsel (included in Item 5.1).
         *24.1 --   Power of Attorney (included on signature page of this
                    Registration Statement).

*Filed herewith.

Item 9.  Undertakings.

     In addition to the undertakings incorporated by reference herein,

     (a)  the undersigned registrant hereby undertakes:

          (1)  To file, during any period in which offers or sales are
               being made, a post-effective amendment to this
               registration statement:

           (i)    To include any prospectus required by Section 10(a)(3)
                  of the Securities Act of 1933;

          (ii)    To reflect in the prospectus any facts or events
                  arising after the effective date of
                  the registration statement (or the most recent
                  post-effective amendment thereof) which, individually
                  or in the aggregate, represent a fundamental change
                  in the information set forth in the registration
                  statement;

            (iii) To include any material information with respect to the
                  plan of distribution not previously disclosed in the
                  registration statement or any material change to such
                  information in the registration statement;

     Provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not
     apply if the registration statement is on Form S-3 or Form S-8, and
     the information required to be included in a post-effective amendment
     by those paragraphs is contained in periodic reports filed by the
     registrant pursuant to Section 13 or Section 15(d) of the Securities
     Exchange Act of 1934 that are incorporated by reference in the
     registration statement.

          (2)  That, for the purpose of determining any liability under
     the Securities Act of 1933, each such post-effective amendment shall
     be deemed to be a new registration statement relating to the
     securities offered therein, and the offering of such securities at
     that time shall be deemed to be the initial bona fide offering
     thereof.

          (3)  To remove from registration by means of a post-effective
     amendment any of the securities being registered which remain unsold
     at the termination of the offering.

     (b)  The undersigned registrant hereby undertakes that, for purposes
of determining any liability under the Securities Act of 1933, each filing
of the registrant's annual report pursuant to Section 13(a) or 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
Registration Statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide
offering thereof.

     (h)  Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers and
controlling persons of the registrant pursuant to the foregoing
provisions, or otherwise, the registrant has been advised that in the
opinion of the Securities and Exchange Commission such indemnification
is against public policy as expressed in the Act and is, therefore,
unenforceable.  In the event that a claim for indemnification against
such liabilities (other than the payment by the registrant of expenses
incurred or paid by a director, officer or controlling person of the
registrant in the successful defense of any action, suit or proceeding)
is asserted by such director, officer or controlling person in connection
with the securities being registered, the registrant will, unless in the
opinion of this counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question
whether such indemnification by it is against public policy as expressed
in the act and will be governed by the final adjudication of each issue.

<PAGE>

                            SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the
registrant certifies that it has reasonable grounds to believe that
it meets all of the requirements for filing on Form S-8 and has
duly caused this registration statement to be signed on its behalf
by the undersigned, thereunto duly authorized, in the City of San
Antonio, and State of Texas, on July 21, 1997.

                           VALERO REFINING AND MARKETING COMPANY
                                    (Registrant)


                           By /s/ William E. Greehey
                              William E. Greehey, Chief Executive Officer


     KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears
below hereby constitutes and appoints William E. Greehey, Edward C. Benninger
and Gregory C. King, or any of them, each with power to act without the other,
his true and lawful attorney-in-fact and agent with full power of
substitution and resubstitution, for him and in his name, place and stead, in
any and all capacities, to sign any or all subsequent pre-and post-effective
amendments and supplements to this registration statement, and to file the
same, or cause to be filed the same, with all exhibits thereto, and other
documents in connection therewith, with the Securities and Exchange
Commission, granting unto each said attorney-in-fact and agent full power to
do and perform each and every act and thing requisite and necessary to be done
in and about the premises, as fully to all intents and purposes as he might
or could do in person, hereby ratifying and confirming all that said
attorney-in-fact and agent, or his substitute or substitutes, may lawfully do
or cause to be done by virtue hereof.

     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed below by the following persons in the
capacities and on the dates indicated:

Signature                    Title                          Date

                             Director, Chairman of
                             the Board and Chief
                             Executive Officer
/s/ William E. Greehey       (Principal Executive Officer)  July 21, 1997
William E. Greehey

                            Director, President and
                            Chief Financial Officer
                            (Principal Financial Officer
                            and Principal Accounting
/s/ Edward C. Benninger     Officer)                        July 21, 1997
Edward C. Benninger

/s/ Stan L. McLelland       Director                        July 21, 1997
Stan L. McLelland

/s/ E. Baines Manning       Director                        July 21, 1997
E. Baines Manning

/s/ George E. Kain          Director                        July 21, 1997
George E. Kain

/s/ Wayne D. Smithers       Director                        July 21, 1997
Wayne D. Smithers



              VALERO REFINING AND MARKETING COMPANY

                               and

                  HARRIS TRUST AND SAVINGS BANK

                           Rights Agent

                         Rights Agreement

                    Dated as of July 17, 1997

<PAGE>

                        TABLE OF CONTENTS


Section 1.     Certain Definitions . . . . . . . . . . . . . . .1

Section 2.     Appointment of Rights Agent . . . . . . . . . . .5

Section 3.     Issue of Right Certificates . . . . . . . . . . .5

Section 4.     Form of Right Certificates. . . . . . . . . . . .8

Section 5.     Countersignature and Registration . . . . . . . .8

Section 6.     Transfer, Split Up, Combination and Exchange
                 of Right Certificates; Mutilated, Destroyed,
                 Lost or Stolen Right Certificates . . . . . . .9

Section 7.     Exercise of Rights; Purchase Price; Expiration
                 Date of Rights . . . . . . . . . . . . . . . .11

Section 8.     Cancellation and Destruction of Right
                 Certificates . . . . . . . . . . . . . . . . .12

Section 9.     Availability of Preferred Shares. . . . . . . . 13

Section 10.    Preferred Shares Record Date. . . . . . . . . . 14

Section 11.    Adjustment of Purchase Price, Number of
                 Shares or Number of Rights . . . . . . . . . .14

Section 12.    Certificate of Adjusted Purchase Price or
                 Number of Shares . . . . . . . . . . . . . . .25

Section 13.    Consolidation, Merger or Sale or Transfer
                 of Assets or Earning Power . . . . . . . . . .25

Section 14.    Fractional Rights and Fractional Shares . . . . 27

Section 15.    Rights of Action. . . . . . . . . . . . . . . . 29

Section 16.    Agreement of Right Holders. . . . . . . . . . . 29

Section 17.    Right Certificate Holder Not Deemed a
                 Stockholder . . . . . . . . . . . . . . . . . 30

Section 18.    Concerning the Rights Agent . . . . . . . . . . 31

Section 19.    Merger or Consolidation or Change of Name
                 of Rights Agent . . . . . . . . . . . . . . . 31

Section 20.    Duties of Rights Agent. . . . . . . . . . . . . 32

Section 21.    Change of Rights Agent. . . . . . . . . . . . . 36

Section 22.    Issuance of New Right Certificates. . . . . . . 37

Section 23.    Redemption. . . . . . . . . . . . . . . . . . . 37

Section 24.    Exchange. . . . . . . . . . . . . . . . . . . . 38

Section 25.    Notice of Certain Events. . . . . . . . . . . . 40

Section 26.    Notices . . . . . . . . . . . . . . . . . . . . 42

Section 27.    Supplements and Amendments. . . . . . . . . . . 43

Section 28.    Successors. . . . . . . . . . . . . . . . . . . 43

Section 29.    Benefits of this Agreement. . . . . . . . . . . 43

Section 30.    Severability. . . . . . . . . . . . . . . . . . 44

Section 31.    Governing Law . . . . . . . . . . . . . . . . . 44

Section 32.    Counterparts. . . . . . . . . . . . . . . . . . 44

Section 33.    Descriptive Headings. . . . . . . . . . . . . . 44

Exhibit A - Form of Certificate of Designations. . . . . . . .A-1

Exhibit B - Form of Right Certificate. . . . . . . . . . . . .B-1

Exhibit C - Summary of Rights to Purchase Preferred Shares . .C-1

<PAGE>

          Agreement, dated as of July 17, 1997, between Valero Refining and
Marketing Company, a Delaware corporation which following the Spin-Off (as
defined herein), will be renamed Valero Energy Corporation (the "Company"),
and Harris Trust and Savings Bank (the "Rights Agent").

          The Board of Directors of the Company has authorized and declared a
dividend of one preferred share purchase right (a "Right") for each Common
Share (as hereinafter defined) of the Company to be issued in the distribution
of Common Shares (the "Spin-Off") by Valero Energy Corporation, a Delaware
corporation, to its stockholders, each Right representing the right to
purchase one one-hundredth of a Preferred Share (as hereinafter defined) of
the Company, upon the terms and subject to the conditions herein set forth,
and has further authorized and directed the issuance of one Right with respect
to each Common Share that shall become outstanding between the effective date
of the Spin-Off (the "Record Date") and the earliest of the Distribution Date,
the Redemption Date and the Final Expiration Date (as such terms are
hereinafter defined).

          Accordingly, in consideration of the premises and the mutual
agreements herein set forth, the parties hereby agree as follows:

          Section 1.     Certain Definitions.  For purposes of this Agreement,
the following terms have the meanings indicated:

          (a)  "Acquiring Person" shall mean any Person (as such term is
hereinafter defined) who or which, together with all Affiliates and Associates
(as such terms are hereinafter defined) of such Person, shall be the
Beneficial Owner (as such term is hereinafter defined) of 15% or more of the
Common Shares of the Company then outstanding, but shall not include (i) the
Company, (ii) any Subsidiary (as such term is hereinafter defined) of the
Company, (iii) any employee benefit plan of the Company or any Subsidiary of
the Company, (iv) any entity holding Common Shares for or pursuant to the
terms of any such plan or (v) up until immediately after the effective time of
the Spin-Off, Valero Energy Corporation.  Notwithstanding the foregoing, no
Person shall become an "Acquiring Person" as the result of an acquisition of
Common Shares by the Company which, by reducing the number of shares
outstanding, increases the proportionate number of shares beneficially owned
by such Person to 15% or more of the Common Shares of the Company then
outstanding; provided, however, that if a Person shall become the Beneficial
Owner of 15% or more of the Common Shares of the Company then outstanding by
reason of share purchases by the Company and shall, after such share purchases
by the Company, become the Beneficial Owner of any additional Common Shares of
the Company, then such Person shall be deemed to be an "Acquiring Person". 
Notwithstanding the foregoing, if the Board of Directors of the Company
determines in good faith that a Person who would otherwise be an "Acquiring
Person", as defined pursuant to the foregoing provisions of this paragraph
(a), has become such inadvertently, and such Person divests as promptly as
practicable a sufficient number of Common Shares so that such Person would no
longer be an "Acquiring Person," as defined pursuant to the foregoing
provisions of this paragraph (a), then such Person shall not be deemed to be
an "Acquiring Person" for any purposes of this Agreement.

          (b)  "Affiliate" and "Associate" shall have the respective meanings
ascribed to such terms in Rule 12b-2 of the General Rules and Regulations
under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), as
in effect on the date of this Agreement.

          (c)  A Person shall be deemed the "Beneficial Owner" of and shall be
deemed to "beneficially own" any securities:

          (i)  which such Person or any of such Person's Affiliates or
Associates beneficially owns, directly or indirectly;

          (ii) which such Person or any of such Person's Affiliates or
Associates has the right to acquire (whether such right is exercisable
immediately or only after the passage of time) pursuant to any agreement,
arrangement or understanding (other than customary agreements with and
between underwriters and selling group members with respect to a bona
fide public offering of securities), or upon the exercise of conversion
rights, exchange rights, rights (other than these Rights), warrants or
options, or otherwise; provided, however, that a Person shall not be
deemed the Beneficial Owner of, or to beneficially own, securities
tendered pursuant to a tender or exchange offer made by or on behalf
of such Person or any of such Person's Affiliates or Associates until
such tendered securities are accepted for purchase or exchange; or
(B) the right to vote pursuant to any agreement, arrangement or
understanding; provided, however, that a Person shall not be deemed
the Beneficial Owner of, or to beneficially own, any security if the
agreement, arrangement or understanding to vote such security (1) arises
solely from a revocable proxy or consent given to such Person in response
to a public proxy or consent solicitation made pursuant to, and in
accordance with, the applicable rules and regulations promulgated under
the Exchange Act and (2) is not also then reportable on Schedule 13D
under the Exchange Act (or any comparable or successor report); or

          (iii)     which are beneficially owned, directly or indirectly,
by any other Person with which such Person or any of such Person's
Affiliates or Associates has any agreement, arrangement or understanding
(other than customary agreements with and between underwriters and
selling group members with respect to a bona fide public offering of
securities) for the purpose of acquiring, holding, voting (except to the
extent contemplated by the proviso to Section 1(c)(ii)(B)) or disposing
of any securities of the Company.  Notwithstanding anything in this
definition of Beneficial Ownership to the contrary, the phrase "then
outstanding," when used with reference to a Person's Beneficial Ownership
of securities of the Company, shall mean the number of such securities
then issued and outstanding together with the number of such securities
not then actually issued and outstanding which such Person would be
deemed to own beneficially hereunder.

          (d)  "Business Day" shall mean any day other than a Saturday, a
Sunday, or a day on which banking institutions in New York or Illinois are
authorized or obligated by law or executive order to close.

          (e)  "Close of business" on any given date shall mean 5:00 P.M.,
Chicago, Illinois time, on such date; provided, however, that if such date is
not a Business Day it shall mean 5:00 P.M., Chicago, Illinois time, on the
next succeeding Business Day.

          (f)  "Common Shares" when used with reference to the Company shall
mean the shares of common stock, par value $0.01 per share, of the Company.
"Common Shares" when used with reference to any Person other than the
Company shall mean the capital stock (or equity interest) with the greatest
voting power of such other Person or, if such other Person is a Subsidiary
of another Person, the Person or Persons which ultimately control such
first-mentioned Person.

          (g)  "Distribution Date" shall have the meaning set forth in
Section 3 hereof.

          (h)  "Final Expiration Date" shall have the meaning set forth in
Section 7 hereof.

          (i)  "Person" shall mean any individual, firm, corporation or
other entity, and shall include any successor (by merger or otherwise) of
such entity.

          (j)  "Preferred Shares" shall mean shares of Junior Participating
Preferred Stock, Series I, par value $0.01 per share, of the Company having
the rights and preferences set forth in the Form of Certificate of
Designations attached to this Agreement as Exhibit A.

          (k)  "Redemption Date" shall have the meaning set forth in Section 7
hereof.

          (l)  "Shares Acquisition Date" shall mean the first date of public
announcement by the Company or an Acquiring Person that an Acquiring Person
has become such.

          (m)  "Subsidiary" of any Person shall mean any corporation or other
entity of which a majority of the voting power of the voting equity securities
or equity interest is owned, directly or indirectly, by such Person.

          Section 2.     Appointment of Rights Agent.  The Company hereby
appoints the Rights Agent to act as agent for the Company and the holders of
the Rights (who, in accordance with Section 3 hereof, shall prior to the
Distribution Date also be the holders of the Common Shares) in accordance with
the terms and conditions hereof, and the Rights Agent hereby accepts such
appointment.  The Company may from time to time appoint such co-Rights Agents
as it may deem necessary or desirable.

          Section 3.     Issue of Right Certificates.  (a) Until the earlier
of (i) the tenth day after the Shares Acquisition Date or (ii) the tenth
business day (or such later date as may be determined by action of the Board
of Directors prior to such time as any Person becomes an Acquiring Person)
after the date of the commencement by any Person (other than the Company, any
Subsidiary of the Company, any employee benefit plan of the Company or of any
Subsidiary of the Company or any entity holding Common Shares for or pursuant
to the terms of any such plan) of, or of the first public announcement of the
intention of any Person (other than the Company, any Subsidiary of the
Company, any employee benefit plan of the Company or of any Subsidiary of the
Company or any entity holding Common Shares for or pursuant to the terms of
any such plan) to commence, a tender or exchange offer the consummation of
which would result in any Person becoming the Beneficial Owner of Common
Shares aggregating 15% or more of the then outstanding Common Shares
(including any such date which is after the date of this Agreement and prior
to the issuance of the Rights; the earlier of such dates being herein referred
to as the "Distribution Date"), (x) the Rights will be evidenced (subject to
the provisions of Section 3(b) hereof) by the certificates for Common Shares
registered in the names of the holders thereof (which certificates shall also
be deemed to be Right Certificates) and not by separate Right Certificates,
and (y) the right to receive Right Certificates will be transferable only in
connection with the transfer of Common Shares.  As soon as practicable after
the Distribution Date, the Company will prepare and execute, the Rights Agent
will countersign, and the Company will send or cause to be sent (and the
Rights Agent will, if requested, send) by first-class, insured,
postage-prepaid mail, at the cost and expense of the Company to each record
holder of Common Shares as of the close of business on the Distribution Date,
at the address of such holder shown on the records of the Company, a Right
Certificate, in substantially the form of Exhibit B hereto (a "Right
Certificate"), evidencing one Right for each Common Share so held.  As of the
Distribution Date, the Rights will be evidenced solely by such Right
Certificates.

          (b)  On the Record Date, or as soon as practicable thereafter, the
Company will send a copy of a Summary of Rights to Purchase Preferred Shares,
in substantially the form of Exhibit C hereto (the "Summary of Rights"), by
first-class, postage-prepaid mail, to each record holder of Common Shares as
of the close of business on the Record Date, at the address of such holder
shown on the records of the Company.  With respect to certificates for Common
Shares outstanding as of the Record Date, until the Distribution Date, the
Rights will be evidenced by such certificates registered in the names of the
holders thereof together with a copy of the Summary of Rights attached
thereto.  Until the Distribution Date (or the earlier of the Redemption Date
or the Final Expiration Date), the surrender for transfer of any certificate
for Common Shares outstanding on the Record Date, with or without a copy of
the Summary of Rights attached thereto, shall also constitute the transfer of
the Rights associated with the Common Shares represented thereby.

          (c)  Certificates for Common Shares which become outstanding
(including, without limitation, reacquired Common Shares referred to in the
last sentence of this paragraph (c)) after the Record Date but prior to the
earliest of the Distribution Date, the Redemption Date or the Final Expiration
Date shall have impressed on, printed on, written on or otherwise affixed to
them a legend substantially as follows:

     This certificate also evidences and entitles the holder hereof
     to certain rights as set forth in a Rights Agreement between Valero
     Energy Corporation (formerly Valero Refining and Marketing Company)
     and Harris Trust and Savings Bank (the "Rights Agreement"), the
     terms of which are hereby incorporated herein by reference and a
     copy of which is on file at the principal executive offices of
     Valero Energy Corporation.  Under certain circumstances, as set
     forth in the Rights Agreement, such Rights will be evidenced by
     separate certificates and will no longer be evidenced by this
     certificate.  Valero Energy Corporation will mail to the holder of
     this certificate a copy of the Rights Agreement without charge
     after receipt of a written request therefor.  Under certain
     circumstances, as set forth in the Rights Agreement, Rights
     issued to any Person who becomes an Acquiring Person (as defined
     in the Rights Agreement) may become null and void.

With respect to such certificates containing the foregoing legend, until the
Distribution Date, the Rights associated with the Common Shares represented by
such certificates shall be evidenced by such certificates alone, and the
surrender for transfer of any such certificate shall also constitute the
transfer of the Rights associated with the Common Shares represented thereby. 
In the event that the Company purchases or acquires any Common Shares after
the Record Date but prior to the Distribution Date, any Rights associated with
such Common Shares shall be deemed cancelled and retired so that the Company
shall not be entitled to exercise any Rights associated with the Common Shares
which are no longer outstanding.

          Section 4.     Form of Right Certificates.  The Right Certificates
(and the forms of election to purchase Preferred Shares and of assignment to
be printed on the reverse thereof) shall be substantially the same as Exhibit
B hereto and may have such marks of identification or designation and such
legends, summaries or endorsements printed thereon as the Company may deem
appropriate and as are not inconsistent with the provisions of this Agreement,
or as may be required to comply with any applicable law or with any rule or
regulation made pursuant thereto or with any rule or regulation of any stock
exchange on which the Rights may from time to time be listed, or to conform to
usage.  Subject to the provisions of Section 22 hereof, the Right Certificates
shall entitle the holders thereof to purchase such number of one
one-hundredths of a Preferred Share as shall be set forth therein at the price
per one one-hundredth of a Preferred Share set forth therein (the "Purchase
Price"), but the number of such one one-hundredths of a Preferred Share and
the Purchase Price shall be subject to adjustment as provided herein.

          Section 5.     Countersignature and Registration.  The Right
Certificates shall be executed on behalf of the Company by its Chairman of the
Board, its Chief Executive Officer, its President, any of its Vice Presidents,
or its Treasurer, either manually or by facsimile signature, shall have
affixed thereto the Company's seal or a facsimile thereof, and shall be
attested by the Secretary or an Assistant Secretary of the Company, either
manually or by facsimile signature.  The Right Certificates shall be manually
countersigned by the Rights Agent and shall not be valid for any purpose
unless countersigned.  In case any officer of the Company who shall have
signed any of the Right Certificates shall cease to be such officer of the
Company before countersignature by the Rights Agent and issuance and delivery
by the Company, such Right Certificates, nevertheless, may be countersigned by
the Rights Agent and issued and delivered by the Company with the same force
and effect as though the person who signed such Right Certificates had not
ceased to be such officer of the Company; and any Right Certificate may be
signed on behalf of the Company by any person who, at the actual date of the
execution of such Right Certificate, shall be a proper officer of the Company
to sign such Right Certificate, although at the date of the execution of this
Rights Agreement any such person was not such an officer.

          Following the Distribution Date, the Rights Agent will keep or cause
to be kept, at its principal office, books for registration and transfer of
the Right Certificates issued hereunder.  Such books shall show the names and
addresses of the respective holders of the Right Certificates, the number of
Rights evidenced on its face by each of the Right Certificates and the date of
each of the Right Certificates.

          Section 6.     Transfer, Split Up, Combination and Exchange of Right
Certificates; Mutilated, Destroyed, Lost or Stolen Right Certificates. 
Subject to the provisions of Section 14 hereof, at any time after the close of
business on the Distribution Date, and at or prior to the close of business on
the earlier of the Redemption Date or the Final Expiration Date, any Right
Certificate or Right Certificates (other than Right Certificates representing
Rights that have become void pursuant to Section 11(a)(ii) hereof or that have
been exchanged pursuant to Section 24 hereof) may be transferred, split up,
combined or exchanged for another Right Certificate or Right Certificates,
entitling the registered holder to purchase a like number of one
one-hundredths of a Preferred Share as the Right Certificate or Right
Certificates surrendered then entitled such holder to purchase.  Any
registered holder desiring to transfer, split up, combine or exchange any
Right Certificate or Right Certificates shall make such request in writing
delivered to the Rights Agent, and shall surrender the Right Certificate or
Right Certificates to be transferred, split up, combined or exchanged at the
principal office of the Rights Agent.  Thereupon the Rights Agent shall
countersign and deliver to the person entitled thereto a Right Certificate or
Right Certificates, as the case may be, as so requested.  The Company may
require payment of a sum sufficient to cover any tax or governmental charge
that may be imposed in connection with any transfer, split up, combination or
exchange of Right Certificates.

          Upon receipt by the Company and the Rights Agent of evidence
reasonably satisfactory to them of the loss, theft, destruction or mutilation
of a Right Certificate, and, in case of loss, theft or destruction, of
indemnity or security reasonably satisfactory to them, and, at the Company's
or Rights Agent's request, reimbursement to the Company and the Rights Agent
of all reasonable expenses incidental thereto, and upon surrender to the
Rights Agent and cancellation of the Right Certificate if mutilated, the
Company will make and deliver a new Right Certificate of like tenor to the
Rights Agent for delivery to the registered holder in lieu of the Right
Certificate so lost, stolen, destroyed or mutilated.

          Section 7.     Exercise of Rights; Purchase Price; Expiration Date
of Rights.  (a) The registered holder of any Right Certificate may exercise
the Rights evidenced thereby (except as otherwise provided herein) in whole or
in part at any time after the Distribution Date upon surrender of the Right
Certificate, with the form of election to purchase on the reverse side thereof
duly executed, to the Rights Agent at the principal office of the Rights
Agent, together with payment of the Purchase Price for each one one-hundredth
of a Preferred Share as to which the Rights are exercised, at or prior to the
earliest of (i) the close of business on June 30, 2007 (the "Final Expiration
Date"), (ii) the time at which the Rights are redeemed as provided in Section
23 hereof (the "Redemption Date"), or (iii) the time at which such Rights are
exchanged as provided in Section 24 hereof.

          (b)  The Purchase Price for each one one-hundredth of a Preferred
Share purchasable pursuant to the exercise of a Right shall initially be
$100.00, and shall be subject to adjustment from time to time as provided in
Section 11 or 13 hereof and shall be payable in lawful money of the United
States of America in accordance with paragraph (c) below.

          (c)  Upon receipt of a Right Certificate representing exercisable
Rights, with the form of election to purchase duly executed, accompanied by
payment of the Purchase Price for the shares to be purchased and an amount
equal to any applicable transfer tax required to be paid by the holder of such
Right Certificate in accordance with Section 9 hereof by certified check,
cashier's check or money order payable to the order of the Company, the Rights
Agent shall thereupon promptly (i)(A) requisition from any transfer agent of
the Preferred Shares certificates for the number of Preferred Shares to be
purchased and the Company hereby irrevocably authorizes its transfer agent to
comply with all such requests, or (B) requisition from the depositary agent
depositary receipts representing such number of one one-hundredths of a
Preferred Share as are to be purchased (in which case certificates for the
Preferred Shares represented by such receipts shall be deposited by the
transfer agent with the depositary agent) and the Company hereby directs the
depositary agent to comply with such request, (ii) when appropriate,
requisition from the Company the amount of cash to be paid in lieu of issuance
of fractional shares in accordance with Section 14 hereof, (iii) after receipt
of such certificates or depositary receipts, cause the same to be delivered to
or upon the order of the registered holder of such Right Certificate,
registered in such name or names as may be designated by such holder and (iv)
when appropriate, after receipt, deliver such cash to or upon the order of the
registered holder of such Right Certificate.

          (d)  In case the registered holder of any Right Certificate shall
exercise less than all the Rights evidenced thereby, a new Right Certificate
evidencing Rights equivalent to the Rights remaining unexercised shall be
issued by the Rights Agent to the registered holder of such Right Certificate
or to his duly authorized assigns, subject to the provisions of Section 14
hereof.

          Section 8.     Cancellation and Destruction of Right Certificates. 
All Right Certificates surrendered for the purpose of exercise, transfer,
split up, combination or exchange shall, if surrendered to the Company or to
any of its agents, be delivered to the Rights Agent for cancellation or in
cancelled form, or, if surrendered to the Rights Agent, shall be cancelled by
it, and no Right Certificates shall be issued in lieu thereof except as
expressly permitted by any of the provisions of this Rights Agreement.  The
Company shall deliver to the Rights Agent for cancellation and retirement, and
the Rights Agent shall so cancel and retire, any other Right Certificate
purchased or acquired by the Company otherwise than upon the exercise thereof. 
The Rights Agent shall deliver all cancelled Right Certificates to the
Company, or shall, at the written request of the Company, destroy such
cancelled Right Certificates, and in such case shall deliver a certificate of
destruction thereof to the Company.

          Section 9.     Availability of Preferred Shares.  The Company
covenants and agrees that it will cause to be reserved and kept available out
of its authorized and unissued Preferred Shares or any Preferred Shares held
in its treasury, the number of Preferred Shares that will be sufficient to
permit the exercise in full of all outstanding Rights in accordance with
Section 7.  The Company covenants and agrees that it will take all such action
as may be necessary to ensure that all Preferred Shares delivered upon
exercise of Rights shall, at the time of delivery of the certificates for such
Preferred Shares (subject to payment of the Purchase Price), be duly and
validly authorized and issued and fully paid and nonassessable shares.

          The Company further covenants and agrees that it will pay when due
and payable any and all federal and state transfer taxes and charges which may
be payable in respect of the issuance or delivery of the Right Certificates or
of any Preferred Shares upon the exercise of Rights.  The Company shall not,
however, be required to pay any transfer tax which may be payable in respect
of any transfer or delivery of Right Certificates to a person other than, or
the issuance or delivery of certificates or depositary receipts for the
Preferred Shares in a name other than that of, the registered holder of the
Right Certificate evidencing Rights surrendered for exercise or to issue or to
deliver any certificates or depositary receipts for Preferred Shares upon the
exercise of any Rights until any such tax shall have been paid (any such tax
being payable by the holder of such Right Certificate at the time of
surrender) or until it has been established to the Company's reasonable
satisfaction that no such tax is due.

          Section 10.    Preferred Shares Record Date.  Each person in whose
name any certificate for Preferred Shares is issued upon the exercise of
Rights shall for all purposes be deemed to have become the holder of record of
the Preferred Shares represented thereby on, and such certificate shall be
dated, the date upon which the Right Certificate evidencing such Rights was
duly surrendered and payment of the Purchase Price (and any applicable
transfer taxes) was made; provided, however, that if the date of such
surrender and payment is a date upon which the Preferred Shares transfer books
of the Company are closed, such person shall be deemed to have become the
record holder of such shares on, and such certificate shall be dated, the next
succeeding Business Day on which the Preferred Shares transfer books of the
Company are open.  Prior to the exercise of the Rights evidenced thereby, the
holder of a Right Certificate shall not be entitled to any rights of a holder
of Preferred Shares for which the Rights shall be exercisable, including,
without limitation, the right to vote, to receive dividends or other
distributions or to exercise any preemptive rights, and shall not be entitled
to receive any notice of any proceedings of the Company, except as provided
herein.

          Section 11.    Adjustment of Purchase Price, Number of Shares or
Number of Rights.  The Purchase Price, the number of Preferred Shares covered
by each Right and the number of Rights outstanding are subject to adjustment
from time to time as provided in this Section 11.

          (a)  (i)  In the event the Company shall at any time after the date
of this Agreement (A) declare a dividend on the Preferred Shares payable in
Preferred Shares, (B) subdivide the outstanding Preferred Shares, (C) combine
the outstanding Preferred Shares into a smaller number of Preferred Shares or
(D) issue any shares of its capital stock in a reclassification of the
Preferred Shares (including any such reclassification in connection with a
consolidation or merger in which the Company is the continuing or surviving
corporation), except as otherwise provided in this Section 11(a), the Purchase
Price in effect at the time of the record date for such dividend or of the
effective date of such subdivision, combination or reclassification, and the
number and kind of shares of capital stock issuable on such date, shall be
proportionately adjusted so that the holder of any Right exercised after such
time shall be entitled to receive the aggregate number and kind of shares of
capital stock which, if such Right had been exercised immediately prior to
such date and at a time when the Preferred Shares transfer books of the
Company were open, he would have owned upon such exercise and been entitled to
receive by virtue of such dividend, subdivision, combination or
reclassification; provided, however, that in no event shall the consideration
to be paid upon the exercise of one Right be less than the aggregate par value
of the shares of capital stock of the Company issuable upon exercise of one
Right.

          (ii) Subject to Section 24 of this Agreement, in the event any
Person becomes an Acquiring Person, each holder of a Right shall thereafter
have a right to receive, upon exercise thereof at a price equal to the then
current Purchase Price multiplied by the number of one one-hundredths of a
Preferred Share for which a Right is then exercisable, in accordance with the
terms of this Agreement and in lieu of Preferred Shares, such number of Common
Shares of the Company as shall equal the result obtained by (x) multiplying
the then current Purchase Price by the number of one one-hundredths of a
Preferred Share for which a Right is then exercisable and dividing that
product by (y) 50% of the then current per share market price of the Company's
Common Shares (determined pursuant to Section 11(d) hereof) on the date of the
occurrence of such event.  In the event that any Person shall become an
Acquiring Person and the Rights shall then be outstanding, the Company shall
not take any action which would eliminate or diminish the benefits intended to
be afforded by the Rights.

          From and after the occurrence of such event, any Rights that are or
were acquired or beneficially owned by any Acquiring Person (or any Associate
or Affiliate of such Acquiring Person) shall be void and any holder of such
Rights shall thereafter have no right to exercise such Rights under any
provision of this Agreement.  No Right Certificate shall be issued pursuant to
Section 3 that represents Rights beneficially owned by an Acquiring Person
whose Rights would be void pursuant to the preceding sentence or any Associate
or Affiliate thereof; no Right Certificate shall be issued at any time upon
the transfer of any Rights to an Acquiring Person whose Rights would be void
pursuant to the preceding sentence or any Associate or Affiliate thereof or to
any nominee of such Acquiring Person, Associate or Affiliate; and any Right
Certificate delivered to the Rights Agent for transfer to an Acquiring Person
whose Rights would be void pursuant to the preceding sentence shall be
cancelled.

          (iii)     In the event that there shall not be sufficient Common
Shares issued but not outstanding or authorized but unissued to permit the
exercise in full of the Rights in accordance with the foregoing subparagraph
(ii), the Company shall take all such action as may be necessary to authorize
additional Common Shares for issuance upon exercise of the Rights.  In the
event the Company shall, after good faith effort, be unable to take all such
action as may be necessary to authorize such additional Common Shares, the
Company shall substitute, for each Common Share that would otherwise be
issuable upon exercise of a Right, a number of Preferred Shares or fraction
thereof such that the current per share market price of one Preferred Share
multiplied by such number or fraction is equal to the current per share market
price of one Common Share as of the date of issuance of such Preferred Shares
or fraction thereof.

          (b)  In case the Company shall fix a record date for the issuance of
rights, options or warrants to all holders of Preferred Shares entitling them
(for a period expiring within 45 calendar days after such record date) to
subscribe for or purchase Preferred Shares (or shares having the same rights,
privileges and preferences as the Preferred Shares ("equivalent preferred
shares")) or securities convertible into Preferred Shares or equivalent
preferred shares at a price per Preferred Share or equivalent preferred share
(or having a conversion price per share, if a security convertible into
Preferred Shares or equivalent preferred shares) less than the then current
per share market price of the Preferred Shares (as defined in Section 11(d))
on such record date, the Purchase Price to be in effect after such record date
shall be determined by multiplying the Purchase Price in effect immediately
prior to such record date by a fraction, the numerator of which shall be the
number of Preferred Shares outstanding on such record date plus the number of
Preferred Shares which the aggregate offering price of the total number of
Preferred Shares and/or equivalent preferred shares so to be offered (and/or
the aggregate initial conversion price of the convertible securities so to be
offered) would purchase at such current market price and the denominator of
which shall be the number of Preferred Shares outstanding on such record date
plus the number of additional Preferred Shares and/or equivalent preferred
shares to be offered for subscription or purchase (or into which the
convertible securities so to be offered are initially convertible); provided,
however, that in no event shall the consideration to be paid upon the exercise
of one Right be less than the aggregate par value of the shares of capital
stock of the Company issuable upon exercise of one Right.  In case such
subscription price may be paid in a consideration part or all of which shall
be in a form other than cash, the value of such consideration shall be as
determined in good faith by the Board of Directors of the Company, whose
determination shall be described in a statement filed with the Rights Agent. 
Preferred Shares owned by or held for the account of the Company shall not be
deemed outstanding for the purpose of any such computation.  Such adjustment
shall be made successively whenever such a record date is fixed; and in the
event that such rights, options or warrants are not so issued, the Purchase
Price shall be adjusted to be the Purchase Price which would then be in effect
if such record date had not been fixed.

          (c)  In case the Company shall fix a record date for the making of a
distribution to all holders of the Preferred Shares (including any such
distribution made in connection with a consolidation or merger in which the
Company is the continuing or surviving corporation) of evidences of
indebtedness or assets (other than a regular quarterly cash dividend or a
dividend payable in Preferred Shares) or subscription rights or warrants
(excluding those referred to in Section 11(b) hereof), the Purchase Price to
be in effect after such record date shall be determined by multiplying the
Purchase Price in effect immediately prior to such record date by a fraction,
the numerator of which shall be the then current per share market price of the
Preferred Shares on such record date, less the fair market value (as
determined in good faith by the Board of Directors of the Company, whose
determination shall be described in a statement filed with the Rights Agent)
of the portion of the assets or evidences of indebtedness so to be distributed
or of such subscription rights or warrants applicable to one Preferred Share
and the denominator of which shall be such current per share market price of
the Preferred Shares; provided, however, that in no event shall the
consideration to be paid upon the exercise of one Right be less than the
aggregate par value of the shares of capital stock of the Company to be issued
upon exercise of one Right.  Such adjustments shall be made successively
whenever such a record date is fixed; and in the event that such  distribution
is not so made, the Purchase Price shall again be adjusted to be the Purchase
Price which would then be in effect if such record date had not been fixed.

          (d)  (i)  For the purpose of any computation hereunder, the "current
per share market price" of any security (a "Security" for the purpose of this
Section 11(d)(i)) on any date shall be deemed to be the average of the daily
closing prices per share of such Security for the 30 consecutive Trading Days
(as such term is hereinafter defined) immediately prior to such date;
provided, however, that in the event that the current per share market price
of the Security is determined during a period following the announcement by
the issuer of such Security of (A) a dividend or distribution on such Security
payable in shares of such Security or securities convertible into such shares,
or (B) any subdivision, combination or reclassification of such Security and
prior to the expiration of 30 Trading Days after the ex-dividend date for such
dividend or distribution, or the record date for such subdivision, combination
or reclassification, then, and in each such case, the current per share market
price shall be appropriately adjusted to reflect the current market price per
share equivalent of such Security.  The closing price for each day shall be
the last sale price, regular way, or, in case no such sale takes place on such
day, the average of the closing bid and asked prices, regular way, in either
case as reported in the principal consolidated transaction reporting system
with respect to securities listed or admitted to trading on the New York Stock
Exchange or, if the Security is not listed or admitted to trading on the New
York Stock Exchange, as reported in the principal consolidated transaction
reporting system with respect to securities listed on the principal national
securities exchange on which the Security is listed or admitted to trading or,
if the Security is not listed or admitted to trading on any national
securities exchange, the last quoted price or, if not so quoted, the average
of the high bid and low asked prices in the over-the-counter market, as
reported by the National Association of Securities Dealers, Inc. Automated
Quotations System ("NASDAQ") or such other system then in use, or, if on any
such date the Security is not quoted by any such organization, the average of
the closing bid and asked prices as furnished by a professional market maker
making a market in the Security selected by the Board of Directors of the
Company.  The term "Trading Day" shall mean a day on which the principal
national securities exchange on which the Security is listed or admitted to
trading is open for the transaction of business or, if the Security is not
listed or admitted to trading on any national securities exchange, a Business
Day.

          (ii) For the purpose of any computation hereunder, the "current per
share market price" of the Preferred Shares shall be determined in accordance
with the method set forth in Section 11(d)(i).  If the Preferred Shares are
not publicly traded, the "current per share market price" of the Preferred
Shares shall be conclusively deemed to be the current per share market price
of the Common Shares as determined pursuant to Section 11(d)(i) (appropriately
adjusted to reflect any stock split, stock dividend or similar transaction
occurring after the date hereof), multiplied by one hundred.  If neither the
Common Shares nor the Preferred Shares are publicly held or so listed or
traded, "current per share market price" shall mean the fair value per share
as determined in good faith by the Board of Directors of the Company, whose
determination shall be described in a statement filed with the Rights Agent.

          (e)  No adjustment in the Purchase Price shall be required unless
such adjustment would require an increase or decrease of at least 1% in the
Purchase Price; provided, however, that any adjustments which by reason of
this Section 11(e) are not required to be made shall be carried forward and
taken into account in any subsequent adjustment.  All calculations under this
Section 11 shall be made to the nearest cent or to the nearest one
one-millionth of a Preferred Share or one ten-thousandth of any other share or
security as the case may be.  Notwithstanding the first sentence of this
Section 11(e), any adjustment required by this Section 11 shall be made no
later than the earlier of (i) three years from the date of the transaction
which requires such adjustment or (ii) the date of the expiration of the right
to exercise any Rights.

          (f)  If as a result of an adjustment made pursuant to Section 11(a)
hereof, the holder of any Right thereafter exercised shall become entitled to
receive any shares of capital stock of the Company other than Preferred
Shares, thereafter the number of such other shares so receivable upon exercise
of any Right shall be subject to adjustment from time to time in a manner and
on terms as nearly equivalent as practicable to the provisions with respect to
the Preferred Shares contained in Section 11(a) through (c), inclusive, and
the provisions of Sections 7, 9, 10 and 13 with respect to the Preferred
Shares shall apply on like terms to any such other shares.

          (g)  All Rights originally issued by the Company subsequent to any
adjustment made to the Purchase Price hereunder shall evidence the right to
purchase, at the adjusted Purchase Price, the number of one one-hundredths of
a Preferred Share purchasable from time to time hereunder upon exercise of the
Rights, all subject to further adjustment as provided herein.

          (h)  Unless the Company shall have exercised its election as
provided in Section 11(i), upon each adjustment of the Purchase Price as a
result of the calculations made in Sections 11(b) and (c), each Right
outstanding immediately prior to the making of such adjustment shall
thereafter evidence the right to purchase, at the adjusted Purchase Price,
that number of one one-hundredths of a Preferred Share (calculated to the
nearest one one-millionth of a Preferred Share) obtained by (i) multiplying
(x) the number of one one-hundredths of a share covered by a Right immediately
prior to this adjustment by (y) the Purchase Price in effect immediately prior
to such adjustment of the Purchase Price and (ii) dividing the product so
obtained by the Purchase Price in effect immediately after such adjustment of
the Purchase Price.

          (i)  The Company may elect on or after the date of any adjustment of
the Purchase Price to adjust the number of Rights, in substitution for any
adjustment in the number of one one-hundredths of a Preferred Share
purchasable upon the exercise of a Right.  Each of the Rights outstanding
after such adjustment of the number of Rights shall be exercisable for the
number of one one-hundredths of a Preferred Share for which a Right was
exercisable immediately prior to such adjustment.  Each Right held of record
prior to such adjustment of the number of Rights shall become that number of
Rights (calculated to the nearest one ten-thousandth) obtained by dividing the
Purchase Price in effect immediately prior to adjustment of the Purchase Price
by the Purchase Price in effect immediately after adjustment of the Purchase
Price.  The Company shall make a public announcement of its election to adjust
the number of Rights, indicating the record date for the adjustment, and, if
known at the time, the amount of the adjustment to be made.  This record date
may be the date on which the Purchase Price is adjusted or any day thereafter,
but, if the Right Certificates have been issued, shall be at least 10 days
later than the date of the public announcement.  If Right Certificates have
been issued, upon each adjustment of the number of Rights pursuant to this
Section 11(i), the Company shall, as promptly as practicable, cause to be
distributed to holders of record of Right Certificates on such record date
Right Certificates evidencing, subject to Section 14 hereof, the additional
Rights to which such holders shall be entitled as a result of such adjustment,
or, at the option of the Company, shall cause to be distributed to such
holders of record in substitution and replacement for the Right Certificates
held by such holders prior to the date of adjustment, and upon surrender
thereof, if required by the Company, new Right Certificates evidencing all the
Rights to which such holders shall be entitled after such adjustment.  Right
Certificates so to be distributed shall be issued, executed and countersigned
in the manner provided for herein and shall be registered in the names of the
holders of record of Right Certificates on the record date specified in the
public announcement.

          (j)  Irrespective of any adjustment or change in the Purchase Price
or the number of one one-hundredths of a Preferred Share issuable upon the
exercise of the Rights, the Right Certificates theretofore and thereafter
issued may continue to express the Purchase Price and the number of one
one-hundredths of a Preferred Share which were expressed in the initial Right
Certificates issued hereunder.

          (k)  Before taking any action that would cause an adjustment
reducing the Purchase Price below one one-hundredth of the then par value, if
any, of the Preferred Shares issuable upon exercise of the Rights, the Company
shall take any corporate action which may, in the opinion of its counsel, be
necessary in order that the Company may validly and legally issue fully paid
and nonassessable Preferred Shares at such adjusted Purchase Price.

          (l)  In any case in which this Section 11 shall require that an
adjustment in the Purchase Price be made effective as of a record date for a
specified event, the Company may elect to defer until the occurrence of such
event the issuing to the holder of any Right exercised after such record date
of the Preferred Shares and other capital stock or securities of the Company,
if any, issuable upon such exercise over and above the Preferred Shares and
other capital stock or securities of the Company, if any, issuable upon such
exercise on the basis of the Purchase Price in effect prior to such
adjustment; provided, however, that the Company shall deliver to such holder a
due bill or other appropriate instrument evidencing such holder's right to
receive such additional shares upon the occurrence of the event requiring such
adjustment.

          (m)  Anything in this Section 11 to the contrary notwithstanding,
the Company shall be entitled to make such reductions in the Purchase Price,
in addition to those adjustments expressly required by this Section 11, as and
to the extent that it in its sole discretion shall determine to be advisable
in order that any consolidation or subdivision of the Preferred Shares,
issuance wholly for cash of any Preferred Shares at less than the current
market price, issuance wholly for cash of Preferred Shares or securities which
by their terms are convertible into or exchangeable for Preferred Shares,
dividends on Preferred Shares payable in Preferred Shares or issuance of
rights, options or warrants referred to hereinabove in Section 11(b),
hereafter made by the Company to holders of its Preferred Shares shall not be
taxable to such stockholders.

          (n)  In the event that at any time after the date of this Agreement
and prior to the Distribution Date, the Company shall (i) declare or pay any
dividend on the Common Shares payable in Common Shares or (ii) effect a
subdivision, combination or consolidation of the Common Shares (by
reclassification or otherwise than by payment of dividends in Common Shares)
into a greater or lesser number of Common Shares, then in any such case (A)
the number of one one-hundredths of a Preferred Share purchasable after such
event upon proper exercise of each Right shall be determined by multiplying
the number of one one-hundredths of a Preferred Share so purchasable
immediately prior to such event by a fraction, the numerator of which is the
number of Common Shares outstanding immediately before such event and the
denominator of which is the number of Common Shares outstanding immediately
after such event, and (B) each Common Share outstanding immediately after such
event shall have issued with respect to it that number of Rights which each
Common Share outstanding immediately prior to such event had issued with
respect to it.  The adjustments provided for in this Section 11(n) shall be
made successively whenever such a dividend is declared or paid or such a
subdivision, combination or consolidation is effected.

          Section 12.    Certificate of Adjusted Purchase Price or Number of
Shares.  Whenever an adjustment is made as provided in Section 11 or 13
hereof, the Company shall promptly (a) prepare a certificate setting forth
such adjustment, and a brief statement of the facts accounting for such
adjustment, (b) file with the Rights Agent and with each transfer agent for
the Common Shares or the Preferred Shares a copy of such certificate and (c)
mail a brief summary thereof to each holder of a Right Certificate in
accordance with Section 25 hereof.  The Rights Agent shall be fully protected
in relying on any such certificate and on any adjustment therein contained and
shall not be obligated or responsible for calculating any adjustment, nor
shall it be deemed to have knowledge of such an adjustment unless and until it
shall have received such certificate.

          Section 13.    Consolidation, Merger or Sale or Transfer of Assets
or Earning Power.  In the event, directly or indirectly, at any time after a
Person has become an Acquiring Person, the Company shall consolidate with, or
merge with and into, any other Person, any Person shall consolidate with the
Company, or merge with and into the Company and the Company shall be the
continuing or surviving corporation of such merger and, in connection with
such merger, all or part of the Common Shares shall be changed into or
exchanged for stock or other securities of any other Person (or the Company)
or cash or any other property, or the Company shall sell or otherwise transfer
(or one or more of its Subsidiaries shall sell or otherwise transfer), in one
or more transactions, assets or earning power aggregating 50% or more of the
assets or earning power of the Company and its Subsidiaries (taken as a whole)
to any other Person other than the Company or one or more of its wholly-owned
Subsidiaries, then, and in each such case, proper provision shall be made so
that (i) each holder of a Right (except as otherwise provided herein) shall
thereafter have the right to receive, upon the exercise thereof at a price
equal to the then current Purchase Price multiplied by the number of one
one-hundredths of a Preferred Share for which a Right is then exercisable, in
accordance with the terms of this Agreement and in lieu of Preferred Shares,
such number of Common Shares of such other Person (including the Company as
successor thereto or as the surviving corporation) as shall equal the result
obtained by (A) multiplying the then current Purchase Price by the number of
one one-hundredths of a Preferred Share for which a Right is then exercisable
and dividing that product by (B) 50% of the then current per share market
price of the Common Shares of such other Person (determined pursuant to
Section 11(d) hereof) on the date of consummation of such consolidation,
merger, sale or transfer; (ii) the issuer of such Common Shares shall
thereafter be liable for, and shall assume, by virtue of such consolidation,
merger, sale or transfer, all the obligations and duties of the Company
pursuant to this Agreement; (iii) the term "Company" shall thereafter be
deemed to refer to such issuer; and (iv) such issuer shall take such steps
(including, but not limited to, the reservation of a sufficient number of its
Common Shares in accordance with Section 9 hereof) in connection with such
consummation as may be necessary to assure that the provisions hereof shall
thereafter be applicable, as nearly as reasonably may be, in relation to the
Common Shares thereafter deliverable upon the exercise of the Rights.  The
Company shall not consummate any such consolidation, merger, sale or transfer
unless prior thereto the Company and such issuer shall have executed and
delivered to the Rights Agent a supplemental agreement so providing.  The
Company shall not enter into any transaction of the kind referred to in this
Section 13 if at the time of such transaction there are any rights, warrants,
instruments or securities outstanding or any agreements or arrangements which,
as a result of the consummation of such transaction, would eliminate or
substantially diminish the benefits intended to be afforded by the Rights. 
The provisions of this Section 13 shall similarly apply to successive mergers
or consolidations or sales or other transfers.

          Section 14.    Fractional Rights and Fractional Shares.  (a) The
Company shall not be required to issue fractions of Rights or to distribute
Right Certificates which evidence fractional Rights.  In lieu of such
fractional Rights, there shall be paid to the registered holders of the Right
Certificates with regard to which such fractional Rights would otherwise be
issuable, an amount in cash equal to the same fraction of the current market
value of a whole Right.  For the purposes of this Section 14(a), the current
market value of a whole Right shall be the closing price of the Rights for the
Trading Day immediately prior to the date on which such fractional Rights
would have been otherwise issuable.  The closing price for any day shall be
the last sale price, regular way, or, in case no such sale takes place on such
day, the average of the closing bid and asked prices, regular way, in either
case as reported in the principal consolidated transaction reporting system
with respect to securities listed or admitted to trading on the New York Stock
Exchange or, if the Rights are not listed or admitted to trading on the New
York Stock Exchange, as reported in the principal consolidated transaction
reporting system with respect to securities listed on the principal national
securities exchange on which the Rights are listed or admitted to trading or,
if the Rights are not listed or admitted to trading on any national securities
exchange, the last quoted price or, if not so quoted, the average of the high
bid and low asked prices in the over-the-counter market, as reported by NASDAQ
or such other system then in use or, if on any such date the Rights are not
quoted by any such organization, the average of the closing bid and asked
prices as furnished by a professional market maker making a market in the
Rights selected by the Board of Directors of the Company.  If on any such date
no such market maker is making a market in the Rights, the fair value of the
Rights on such date as determined in good faith by the Board of Directors of
the Company shall be used.

          (b)  The Company shall not be required to issue fractions of
Preferred Shares (other than fractions which are integral multiples of one
one-hundredth of a Preferred Share) upon exercise of the Rights or to
distribute certificates which evidence fractional Preferred Shares (other than
fractions which are integral multiples of one one-hundredth of a Preferred
Share).  Fractions of Preferred Shares in integral multiples of one
one-hundredth of a Preferred Share may, at the election of the Company, be
evidenced by depositary receipts, pursuant to an appropriate agreement between
the Company and a depositary selected by it; provided, that such agreement
shall provide that the holders of such depositary receipts shall have all the
rights, privileges and preferences to which they are entitled as beneficial
owners of the Preferred Shares represented by such depositary receipts.  In
lieu of fractional Preferred Shares that are not integral multiples of one
one-hundredth of a Preferred Share, the Company shall pay to the registered
holders of Right Certificates at the time such Rights are exercised as herein
provided an amount in cash equal to the same fraction of the current market
value of one Preferred Share.  For the purposes of this Section 14(b), the
current market value of a Preferred Share shall be the closing price of a
Preferred Share (as determined pursuant to the second sentence of Section
11(d)(i) hereof) for the Trading Day immediately prior to the date of such
exercise.

          (c)  The holder of a Right by the acceptance of the Right expressly
waives his right to receive any fractional Rights or any fractional shares
upon exercise of a Right (except as provided above).

          Section 15.    Rights of Action.  All rights of action in respect of
this Agreement, excepting the rights of action given to the Rights Agent under
Section 18 hereof, are vested in the respective registered holders of the
Right Certificates (and, prior to the Distribution Date, the registered
holders of the Common Shares); and any registered holder of any Right
Certificate (or, prior to the Distribution Date, of the Common Shares),
without the consent of the Rights Agent or of the holder of any other Right
Certificate (or, prior to the Distribution Date, of the Common Shares), may,
in his own behalf and for his own benefit, enforce, and may institute and
maintain any suit, action or proceeding against the Company to enforce, or
otherwise act in respect of, his right to exercise the Rights evidenced by
such Right Certificate in the manner provided in such Right Certificate and in
this Agreement.  Without limiting the foregoing or any remedies available to
the holders of Rights, it is specifically acknowledged that the holders of
Rights would not have an adequate remedy at law for any breach of this
Agreement and will be entitled to specific performance of the obligations
under, and injunctive relief against actual or threatened violations of the
obligations of any Person subject to, this Agreement.

          Section 16.    Agreement of Right Holders.  Every holder of a Right,
by accepting the same, consents and agrees with the Company and the Rights
Agent and with every other holder of a Right that:

          (a)  prior to the Distribution Date, the Rights will be transferable
only in connection with the transfer of the Common Shares;

          (b)  after the Distribution Date, the Right Certificates are
transferable only on the registry books of the Rights Agent if surrendered at
the principal office of the Rights Agent, duly endorsed or accompanied by a
proper instrument of transfer; and

          (c)  the Company and the Rights Agent may deem and treat the person
in whose name the Right Certificate (or, prior to the Distribution Date, the
associated Common Shares certificate) is registered as the absolute owner
thereof and of the Rights evidenced thereby (notwithstanding any notations of
ownership or writing on the Right Certificates or the associated Common Shares
certificate made by anyone other than the Company or the Rights Agent) for all
purposes whatsoever, and neither the Company nor the Rights Agent shall be
affected by any notice to the contrary.

          Section 17.    Right Certificate Holder Not Deemed a Stockholder. 
No holder, as such, of any Right Certificate shall be entitled to vote,
receive dividends or be deemed for any purpose the holder of the Preferred
Shares or any other securities of the Company which may at any time be
issuable on the exercise of the Rights represented thereby, nor shall anything
contained herein or in any Right Certificate be construed to confer upon the
holder of any Right Certificate, as such, any of the rights of a stockholder
of the Company or any right to vote for the election of directors or upon any
matter submitted to stockholders at any meeting thereof, or to give or
withhold consent to any corporate action, or to receive notice of meetings or
other actions affecting stockholders (except as provided in Section 25
hereof), or to receive dividends or subscription rights, or otherwise, until
the Right or Rights evidenced by such Right Certificate shall have been
exercised in accordance with the provisions hereof.

          Section 18.    Concerning the Rights Agent.  The Company agrees to
pay to the Rights Agent reasonable compensation for all services rendered by
it hereunder and, from time to time, on demand of the Rights Agent, its
reasonable expenses and counsel fees and other disbursements incurred in the
administration and execution of this Agreement and the exercise and
performance of its duties hereunder.  The Company also agrees to indemnify the
Rights Agent for, and to hold it harmless against, any loss, liability, or
expense, incurred without negligence or willful misconduct on the part of the
Rights Agent, for anything done or omitted by the Rights Agent in connection
with the acceptance and administration of this Agreement, including the costs
and expenses of defending against any claim of liability in the premises.  The
indemnification provided for hereunder shall survive the expiration of the
Rights and the termination of this Agreement.  The costs and expenses of
enforcing this right of indemnification shall also be paid by the Company.

          The Rights Agent may conclusively rely upon and shall be protected
and shall incur no liability for, or in respect of any action taken, suffered
or omitted by it in connection with, its administration of this Agreement in
reliance upon any Right Certificate or certificate for the Preferred Shares or
Common Shares or for other securities of the Company, instrument of assignment
or transfer, power of attorney, endorsement, affidavit, letter, notice,
direction, consent, certificate, statement, or other paper or document
believed by it to be genuine and to be signed, executed and, where necessary,
verified or acknowledged, by the proper person or persons, or otherwise upon
the advice of counsel as set forth in Section 20 hereof.

          Section 19.    Merger or Consolidation or Change of Name of Rights
Agent.  Any corporation into which the Rights Agent or any successor Rights
Agent may be merged or with which it may be consolidated, or any corporation
resulting from any merger or consolidation to which the Rights Agent or any
successor Rights Agent shall be a party, or any corporation succeeding to the
stock transfer or corporate trust powers of the Rights Agent or any successor
Rights Agent, shall be the successor to the Rights Agent under this Agreement
without the execution or filing of any paper or any further act on the part of
any of the parties hereto; provided, that such corporation would be eligible
for appointment as a successor Rights Agent under the provisions of Section 21
hereof.  In case at the time such successor Rights Agent shall succeed to the
agency created by this Agreement, any of the Right Certificates shall have
been countersigned but not delivered, any such successor Rights Agent may
adopt the countersignature of the predecessor Rights Agent and deliver such
Right Certificates so countersigned; and in case at that time any of the Right
Certificates shall not have been countersigned, any successor Rights Agent may
countersign such Right Certificates either in the name of the predecessor
Rights Agent or in the name of the successor Rights Agent; and in all such
cases such Right Certificates shall have the full force provided in the Right
Certificates and in this Agreement.

          In case at any time the name of the Rights Agent shall be changed
and at such time any of the Right Certificates shall have been countersigned
but not delivered, the Rights Agent may adopt the countersignature under its
prior name and deliver Right Certificates so countersigned; and in case at
that time any of the Right Certificates shall not have been countersigned, the
Rights Agent may countersign such Right Certificates either in its prior name
or in its changed name; and in all such cases such Right Certificates shall
have the full force provided in the Right Certificates and in this Agreement.

          Section 20.    Duties of Rights Agent.  The Rights Agent undertakes
the duties and obligations imposed by this Agreement upon the following terms
and conditions, and no implied duties or obligations shall be read into this
Agreement against the Rights Agent, by all of which the Company and the
holders of Right Certificates, by their acceptance thereof, shall be bound:

          (a)  Before the Rights Agent acts or refrains from acting, it may
consult with legal counsel (who may be legal counsel for the Company), and the
opinion of such counsel shall be full and complete authorization and
protection to the Rights Agent as to any action taken or omitted by it in good
faith and in accordance with such opinion.

          (b)  Whenever in the performance of its duties under this Agreement
the Rights Agent shall deem it necessary or desirable that any fact or matter
be proved or established by the Company prior to taking or suffering any
action hereunder, such fact or matter (unless other evidence in respect
thereof be herein specifically prescribed) may be deemed to be conclusively
proved and established by a certificate signed by any one of the Chairman of
the Board, the Chief Executive Officer, the President, any Vice President, the
Treasurer or the Secretary of the Company and delivered to the Rights Agent;
and such certificate shall be full authorization to the Rights Agent for any
action taken or suffered in good faith by it under the provisions of this
Agreement in reliance upon such certificate.

          (c)  The Rights Agent shall be liable hereunder to the Company and
any other Person only for its own negligence or willful misconduct.

          (d)  The Rights Agent shall not be liable for or by reason of any of
the statements of fact or recitals contained in this Agreement or in the Right
Certificates (except its countersignature thereof) or be required to verify
the same, but all such statements and recitals are and shall be deemed to have
been made by the Company only.

          (e)  The Rights Agent shall not be under any responsibility in
respect of the validity of this Agreement or the execution and delivery hereof
(except the due execution hereof by the Rights Agent) or in respect of the
validity or execution of any Right Certificate (except its countersignature
thereof); nor shall it be responsible for any breach by the Company of any
covenant or condition contained in this Agreement or in any Right Certificate;
nor shall it be responsible for any change in the exercisability of the Rights
(including the Rights becoming void pursuant to Section 11(a)(ii) hereof) or
any adjustment in the terms of the Rights (including the manner, method or
amount thereof) provided for in Section 3, 11, 13, 23 or 24, or the
ascertaining of the existence of facts that would require any such change or
adjustment (except with respect to the exercise of Rights evidenced by Right
Certificates after actual notice that such change or adjustment is required);
nor shall it by any act hereunder be deemed to make any representation or
warranty as to the authorization or reservation of any Preferred Shares to be
issued pursuant to this Agreement or any Right Certificate or as to whether
any Preferred Shares will, when issued, be validly authorized and issued,
fully paid and nonassessable.

          (f)  The Company agrees that it will perform, execute, acknowledge
and deliver or cause to be performed, executed, acknowledged and delivered all
such further and other acts, instruments and assurances as may reasonably be
required by the Rights Agent for the carrying out or performing by the Rights
Agent of the provisions of this Agreement.

          (g)  The Rights Agent is hereby authorized and directed to accept
instructions with respect to the performance of its duties hereunder from any
one of the Chairman of the Board, the Chief Executive Officer, the President,
any Vice President, the Secretary or the Treasurer of the Company, and to
apply to such officers for advice or instructions in connection with its
duties, and it shall not be liable for any action taken or suffered by it in
good faith in accordance with instructions of any such officer or for any
delay in acting while waiting for those instructions.

          (h)  The Rights Agent and any stockholder, director, officer or
employee of the Rights Agent may buy, sell or deal in any of the Rights or
other securities of the Company or become pecuniarily interested in any
transaction in which the Company may be interested, or contract with or lend
money to the Company or otherwise act as fully and freely as though it were
not Rights Agent under this Agreement.  Nothing herein shall preclude the
Rights Agent from acting in any other capacity for the Company or for any
other legal entity.

          (i)  The Rights Agent may execute and exercise any of the rights or
powers hereby vested in it or perform any duty hereunder either itself or by
or through its attorneys or agents, and the Rights Agent shall not be
answerable or accountable for any act, default, neglect or misconduct of any
such attorneys or agents or for any loss to the Company resulting from any
such act, default, neglect or misconduct.

          (j)  No provision of this Agreement shall require the Rights Agent
to expend or risk its own funds or otherwise incur any financial liability in
the performance of any of its duties hereunder or in the exercise of its
rights if there shall be reasonable grounds for believing that repayment of
such funds or adequate indemnification against such risk or liability is not
reasonably assured to it.

          (k)  The Rights Agent shall not be required to take notice or be
deemed to have notice of any fact, event or determination (including, without
limitation, any dates or events defined in this Agreement or the designation
of any person as an Acquiring Person, Affiliate or Associate) under this
Agreement unless and until the Rights Agent shall be specifically notified in
writing by the Company of such fact, event or determination.

          Section 21.    Change of Rights Agent.  The Rights Agent or any
successor Rights Agent may resign and be discharged from its duties under this
Agreement upon 30 days' notice in writing mailed to the Company by registered
or certified mail and to each transfer agent of the Common Shares or Preferred
Shares by registered or certified mail, and to the holders of the Right
Certificates by first-class mail at the cost and expense of the Company.  The
Company may remove the Rights Agent or any successor Rights Agent upon 30
days' notice in writing, mailed to the Rights Agent or successor Rights Agent,
as the case may be, and to each transfer agent of the Common Shares or
Preferred Shares by registered or certified mail, and to the holders of the
Right Certificates by first-class mail.  If the Rights Agent shall resign or
be removed or shall otherwise become incapable of acting, the Company shall
appoint a successor to the Rights Agent.  If the Company shall fail to make
such appointment within a period of 30 days after giving notice of such
removal or after it has been notified in writing of such resignation or
incapacity by the resigning or incapacitated Rights Agent or by the holder of
a Right Certificate (who shall, with such notice, submit his Right Certificate
for inspection by the Company), then the registered holder of any Right
Certificate may apply to any court of competent jurisdiction for the
appointment of a new Rights Agent.  Any successor Rights Agent, whether
appointed by the Company or by such a court, shall be a corporation organized
and doing business under the laws of the United States or of the State of
Illinois (or of any other state of the United States so long as such
corporation is authorized to do business as a banking institution in the State
of Illinois, in good standing, having an office in the State of Illinois,
which is authorized under such laws to exercise corporate trust or stock
transfer powers and is subject to supervision or examination by federal or
state authority and which has at the time of its appointment as Rights Agent a
combined capital and surplus of at least $50 million.  After appointment, the
successor Rights Agent shall be vested with the same powers, rights, duties
and responsibilities as if it had been originally named as Rights Agent
without further act or deed; but the predecessor Rights Agent shall deliver
and transfer to the successor Rights Agent any property at the time held by it
hereunder, and execute and deliver any further assurance, conveyance, act or
deed necessary for the purpose.  Not later than the effective date of any such
appointment the Company shall file notice thereof in writing with the
predecessor Rights Agent and each transfer agent of the Common Shares or
Preferred Shares, and mail a notice thereof in writing to the registered
holders of the Right Certificates.  Failure to give any notice provided for in
this Section 21, however, or any defect therein, shall not affect the legality
or validity of the resignation or removal of the Rights Agent or the
appointment of the successor Rights Agent, as the case may be.

          Section 22.    Issuance of New Right Certificates.  Notwithstanding
any of the provisions of this Agreement or of the Rights to the contrary, the
Company may, at its option, issue new Right Certificates evidencing Rights in
such form as may be approved by its Board of Directors to reflect any
adjustment or change in the Purchase Price and the number or kind or class of
shares or other securities or property purchasable under the Right
Certificates made in accordance with the provisions of this Agreement.

          Section 23.    Redemption.  (a) The Board of Directors of the
Company may, at its option, at any time prior to such time as any Person
becomes an Acquiring Person, redeem all but not less than all the then
outstanding Rights at a redemption price of $.01 per Right, appropriately
adjusted to reflect any stock split, stock dividend or similar transaction
occurring after the date hereof (such redemption price being hereinafter
referred to as the "Redemption Price").  The redemption of the Rights by the
Board of Directors may be made effective at such time, on such basis and with
such conditions as the Board of Directors in its sole discretion may
establish.

          (b)  Immediately upon the action of the Board of Directors of the
Company ordering the redemption of the Rights pursuant to paragraph (a) of
this Section 23, and without any further action and without any notice, the
right to exercise the Rights will terminate and the only right thereafter of
the holders of Rights shall be to receive the Redemption Price.  The Company
shall promptly give public notice of any such redemption; provided, however,
that the failure to give, or any defect in, any such notice shall not affect
the validity of such redemption.  Within 10 days after such action of the
Board of Directors ordering the redemption of the Rights, the Company shall
mail a notice of redemption to all the holders of the then outstanding Rights
at their last addresses as they appear upon the registry books of the Rights
Agent or, prior to the Distribution Date, on the registry books of the
transfer agent for the Common Shares.  Any notice which is mailed in the
manner herein provided shall be deemed given, whether or not the holder
receives the notice.  Each such notice of redemption will state the method by
which the payment of the Redemption Price will be made.  Neither the Company
nor any of its Affiliates or Associates may redeem, acquire or purchase for
value any Rights at any time in any manner other than that specifically set
forth in this Section 23 or in Section 24 hereof, and other than in connection
with the purchase of Common Shares prior to the Distribution Date.

          Section 24.    Exchange.  (a) The Board of Directors of the Company
may, at its option, at any time after any Person becomes an Acquiring Person,
exchange all or part of the then outstanding and exercisable Rights (which
shall not include Rights that have become void pursuant to the provisions of
Section 11(a)(ii) hereof) for Common Shares at an exchange ratio of one Common
Share per Right, appropriately adjusted to reflect any stock split, stock
dividend or similar transaction occurring after the date hereof (such exchange
ratio being hereinafter referred to as the "Exchange Ratio").  Notwithstanding
the foregoing, the Board of Directors shall not be empowered to effect such
exchange at any time after any Person (other than the Company, any Subsidiary
of the Company, any employee benefit plan of the Company or any such
Subsidiary, or any entity holding Common Shares for or pursuant to the terms
of any such plan), together with all Affiliates and Associates of such Person,
becomes the Beneficial Owner of 50% or more of the Common Shares then
outstanding.

          (b)  Immediately upon the action of the Board of Directors of the
Company ordering the exchange of any Rights pursuant to paragraph (a) of this
Section 24 and without any further action and without any notice, the right to
exercise such Rights shall terminate and the only right thereafter of a holder
of such Rights shall be to receive that number of Common Shares equal to the
number of such Rights held by such holder multiplied by the Exchange Ratio. 
The Company shall promptly give public notice of any such exchange; provided,
however, that the failure to give, or any defect in, such notice shall not
affect the validity of such exchange.  The Company promptly shall mail a
notice of any such exchange to all of the holders of such Rights at their last
addresses as they appear upon the registry books of the Rights Agent.  Any
notice which is mailed in the manner herein provided shall be deemed given,
whether or not the holder receives the notice.  Each such notice of exchange
will state the method by which the exchange of the Common Shares for Rights
will be effected and, in the event of any partial exchange, the number of
Rights which will be exchanged.  Any partial exchange shall be effected pro
rata based on the number of Rights (other than Rights which have become void
pursuant to the provisions of Section 11(a)(ii) hereof) held by each holder of
Rights.

          (c)  In the event that there shall not be sufficient Common Shares
issued but not outstanding or authorized but unissued to permit any exchange
of Rights as contemplated in accordance with this Section 24, the Company
shall take all such action as may be necessary to authorize additional Common
Shares for issuance upon exchange of the Rights.  In the event the Company
shall, after good faith effort, be unable to take all such action as may be
necessary to authorize such additional Common Shares, the Company shall
substitute, for each Common Share that would otherwise be issuable upon
exchange of a Right, a number of Preferred Shares or fraction thereof such
that the current per share market price of one Preferred Share multiplied by
such number or fraction is equal to the current per share market price of one
Common Share as of the date of issuance of such Preferred Shares or fraction
thereof.

          (d)  The Company shall not be required to issue fractions of Common
Shares or to distribute certificates which evidence fractional Common Shares. 
In lieu of such fractional Common Shares, the Company shall pay to the
registered holders of the Right Certificates with regard to which such
fractional Common Shares would otherwise be issuable an amount in cash equal
to the same fraction of the current market value of a whole Common Share.  For
the purposes of this paragraph (d), the current market value of a whole Common
Share shall be the closing price of a Common Share (as determined pursuant to
the second sentence of Section 11(d)(i) hereof) for the Trading Day
immediately prior to the date of exchange pursuant to this Section 24.

          Section 25.    Notice of Certain Events.  (a) In case the Company
shall propose (i) to pay any dividend payable in stock of any class to the
holders of its Preferred Shares or to make any other distribution to the
holders of its Preferred Shares (other than a regular quarterly cash
dividend), (ii) to offer to the holders of its Preferred Shares rights or
warrants to subscribe for or to purchase any additional Preferred Shares or
shares of stock of any class or any other securities, rights or options, (iii)
to effect any reclassification of its Preferred Shares (other than a
reclassification involving only the subdivision of outstanding Preferred
Shares), (iv) to effect any consolidation or merger into or with, or to effect
any sale or other transfer (or to permit one or more of its Subsidiaries to
effect any sale or other transfer), in one or more transactions, of 50% or
more of the assets or earning power of the Company and its Subsidiaries (taken
as a whole) to, any other Person, (v) to effect the liquidation, dissolution
or winding up of the Company, or (vi) to declare or pay any dividend on the
Common Shares payable in Common Shares or to effect a subdivision, combination
or consolidation of the Common Shares (by reclassification or otherwise than
by payment of dividends in Common Shares), then, in each such case, the
Company shall give to each holder of a Right Certificate, in accordance with
Section 26 hereof, a notice of such proposed action, which shall specify the
record date for the purposes of such stock dividend, or distribution of rights
or warrants, or the date on which such reclassification, consolidation,
merger, sale, transfer, liquidation, dissolution, or winding up is to take
place and the date of participation therein by the holders of the Common
Shares and/or Preferred Shares, if any such date is to be fixed, and such
notice shall be so given in the case of any action covered by clause (i) or
(ii) above at least 10 days prior to the record date for determining holders
of the Preferred Shares for purposes of such action, and in the case of any
such other action, at least 10 days prior to the date of the taking of such
proposed action or the date of participation therein by the holders of the
Common Shares and/or Preferred Shares, whichever shall be the earlier.

          (b)  In case the event set forth in Section 11(a)(ii) hereof shall
occur, then the Company shall as soon as practicable thereafter give to each
holder of a Right Certificate, in accordance with Section 26 hereof, a notice
of the occurrence of such event, which notice shall describe such event and
the consequences of such event to holders of Rights under Section 11(a)(ii)
hereof.

          Section 26.    Notices.  Notices or demands authorized by this
Agreement to be given or made by the Rights Agent or by the holder of any
Right Certificate to or on the Company shall be sufficiently given or made if
sent by first-class mail, postage prepaid, addressed (until another address is
filed in writing with the Rights Agent) as follows:

               Valero Energy Corporation
               530 McCullough Avenue
               San Antonio, Texas 78215
               Attention:  Corporate Secretary

Subject to the provisions of Section 21 hereof, any notice or demand
authorized by this Agreement to be given or made by the Company or by the
holder of any Right Certificate to or on the Rights Agent shall be sent by
registered or certified mail and shall be deemed given upon receipt and
addressed (until another address is filed in writing with the Company) as
follows:

               Harris Trust and Savings Bank
               311 W. Monroe
               Chicago, IL 60606
               Attention:  Shareholder Services Division

Notices or demands authorized by this Agreement to be given or made by the
Company or the Rights Agent to the holder of any Right Certificate shall be
sufficiently given or made if sent by first-class mail, postage prepaid,
addressed to such holder at the address of such holder as shown on the
registry books of the Company.

          Section 27.    Supplements and Amendments.  The Company may from
time to time supplement or amend this Agreement without the approval of any
holders of Right Certificates in order to cure any ambiguity, to correct or
supplement any provision contained herein which may be defective or
inconsistent with any other provisions herein, or to make any other provisions
with respect to the Rights which the Company may deem necessary or desirable,
any such supplement or amendment to be evidenced by a writing signed by the
Company and the Rights Agent; provided, however, that from and after such time
as any Person becomes an Acquiring Person, this Agreement shall not be amended
in any manner which would adversely affect the interests of the holders of
Rights.  Without limiting the foregoing, the Company may at any time prior to
such time as any Person becomes an Acquiring Person amend this Agreement to
lower the thresholds set forth in Sections 1(a) and 3(a) to not less than the
greater of (i) the sum of .001% and the largest percentage of the outstanding
Common Shares then known by the Company to be beneficially owned by any Person
(other than the Company, any Subsidiary of the Company, any employee benefit
plan of the Company or any Subsidiary of the Company, or any entity holding
Common Shares for or pursuant to the terms of any such plan) and (ii) 10%.

          Section 28.    Successors.  All the covenants and provisions of this
Agreement by or for the benefit of the Company or the Rights Agent shall bind
and inure to the benefit of their respective successors and assigns hereunder.

          Section 29.    Benefits of this Agreement.  Nothing in this
Agreement shall be construed to give to any person or corporation other than
the Company, the Rights Agent and the registered holders of the Right
Certificates (and, prior to the Distribution Date, the Common Shares) any
legal or equitable right, remedy or claim under this Agreement; but this
Agreement shall be for the sole and exclusive benefit of the Company, the
Rights Agent and the registered holders of the Right Certificates (and, prior
to the Distribution Date, the Common Shares).

          Section 30.    Severability.  If any term, provision, covenant or
restriction of this Agreement is held by a court of competent jurisdiction or
other authority to be invalid, void or unenforceable, the remainder of the
terms, provisions, covenants and restrictions of this Agreement shall remain
in full force and effect and shall in no way be affected, impaired or
invalidated.

          Section 31.    Governing Law.  This Agreement and each Right
Certificate issued hereunder shall be deemed to be a contract made under the
laws of the State of Delaware and for all purposes shall be governed by and
construed in accordance with the laws of such State applicable to contracts to
be made and performed entirely within such State.

          Section 32.    Counterparts.  This Agreement may be executed in any
number of counterparts and each of such counterparts shall for all purposes be
deemed to be an original, and all such counterparts shall together constitute
but one and the same instrument.

          Section 33.    Descriptive Headings.  Descriptive headings of the
several Sections of this Agreement are inserted for convenience only and shall
not control or affect the meaning or construction of any of the provisions
hereof.

          IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed and attested, all as of the day and year first above written.

                                        VALERO REFINING AND MARKETING
                                           COMPANY

Attest:


By /s Rand C. Schmidt                 By /s/ John D. Gibbons
  Title: Corporate Secretary             Title: Vice President


                                      HARRIS TRUST AND SAVINGS BANK,
                                           as Rights Agent
Attest:


By_____________________________        By /s/ Harris Trust and Savings Bank
  Title:_______________________           Title:________________________

<PAGE>

                                                        Exhibit A


                               FORM

                                of

                   CERTIFICATE OF DESIGNATIONS

                                of

          JUNIOR PARTICIPATING PREFERRED STOCK, SERIES I

                                of

              VALERO REFINING AND MARKETING COMPANY

                 (Pursuant to Section 151 of the
                Delaware General Corporation Law)


          Valero Refining and Marketing Company, a corporation organized and
existing under the General Corporation Law of the State of Delaware
(hereinafter called the "Corporation"), hereby certifies that the following
resolution was adopted by the Board of Directors of the Corporation as
required by Section 151 of the General Corporation Law at a meeting duly
called and held on July 17, 1997:

          RESOLVED, that pursuant to the authority granted to and vested in
the Board of Directors of this Corporation (hereinafter called the "Board of
Directors" or the "Board") in accordance with the provisions of the
Certificate of Incorporation, the Board of Directors hereby creates a series
of Preferred Stock, par value $0.01 per share (the "Preferred Stock"), of the
Corporation and hereby states the designation and number of shares, and fixes
the relative rights, preferences, and limitations thereof as follows:

          Junior Participating Preferred Stock, Series I:

          Section 1.     Designation and Amount.  The shares of such series
shall be designated as "Junior Participating Preferred Stock, Series I" (the
"Series I Preferred Stock") and the number of shares constituting the Series I
Preferred Stock shall be 1,500,000.  Such number of shares may be increased or
decreased by resolution of the Board of Directors; provided, that no decrease
shall reduce the number of shares of Series I Preferred Stock to a number less
than the number of shares then outstanding plus the number of shares reserved
for issuance upon the exercise of outstanding options, rights or warrants or
upon the conversion of any outstanding securities issued by the Corporation
convertible into Series I Preferred Stock.

          Section 2.     Dividends and Distributions.

          (A)  Subject to the rights of the holders of any shares of any
series of Preferred Stock (or any similar stock) ranking prior and superior to
the Series I Preferred Stock with respect to dividends, the holders of shares
of Series I Preferred Stock, in preference to the holders of Common Stock, par
value $0.01 per share (the "Common Stock"), of the Corporation, and of any
other junior stock, shall be entitled to receive, when, as and if declared by
the Board of Directors out of funds legally available for the purpose,
quarterly dividends payable in cash on the first day of March, June, September
and December in each year (each such date being referred to herein as a
"Quarterly Dividend Payment Date"), commencing on the first Quarterly Dividend
Payment Date after the first issuance of a share or fraction of a share of
Series I Preferred Stock, in an amount per share (rounded to the nearest cent)
equal to the greater of (a) $1 or (b) subject to the provision for adjustment
hereinafter set forth, 100 times the aggregate per share amount of all cash
dividends, and 100 times the aggregate per share amount (payable in kind) of
all non-cash dividends or other distributions, other than a dividend payable
in shares of Common Stock or a subdivision of the outstanding shares of Common
Stock (by reclassification or otherwise), declared on the Common Stock since
the immediately preceding Quarterly Dividend Payment Date or, with respect to
the first Quarterly Dividend Payment Date, since the first issuance of any
share or fraction of a share of Series I Preferred Stock.  In the event the
Corporation shall at any time declare or pay any dividend on the Common Stock
payable in shares of Common Stock, or effect a subdivision or combination or
consolidation of the outstanding shares of Common Stock (by reclassification
or otherwise than by payment of a dividend in shares of Common Stock) into a
greater or lesser number of shares of Common Stock, then in each such case the
amount to which holders of shares of Series I Preferred Stock were entitled
immediately prior to such event under clause (b) of the preceding sentence
shall be adjusted by multiplying such amount by a fraction, the numerator of
which is the number of shares of Common Stock outstanding immediately after
such event and the denominator of which is the number of shares of Common
Stock that were outstanding immediately prior to such event.

          (B)  The Corporation shall declare a dividend or distribution on the
Series I Preferred Stock as provided in paragraph (A) of this Section
immediately after it declares a dividend or distribution on the Common Stock
(other than a dividend payable in shares of Common Stock); provided that, in
the event no dividend or distribution shall have been declared on the Common
Stock during the period between any Quarterly Dividend Payment Date and the
next subsequent Quarterly Dividend Payment Date, a dividend of $1 per share on
the Series I Preferred Stock shall nevertheless be payable on such subsequent
Quarterly Dividend Payment Date.

          (C)  Dividends shall begin to accrue and be cumulative on
outstanding shares of Series I Preferred Stock from the Quarterly Dividend
Payment Date next preceding the date of issue of such shares, unless the date
of issue of such shares is prior to the record date for the first Quarterly
Dividend Payment Date, in which case dividends on such shares shall begin to
accrue from the date of issue of such shares, or unless the date of issue is a
Quarterly Dividend Payment Date or is a date after the record date for the
determination of holders of shares of Series I Preferred Stock entitled to
receive a quarterly dividend and before such Quarterly Dividend Payment Date,
in either of which events such dividends shall begin to accrue and be
cumulative from such Quarterly Dividend Payment Date.  Accrued but unpaid
dividends shall not bear interest.  Dividends paid on the shares of Series I
Preferred Stock in an amount less than the total amount of such dividends at
the time accrued and payable on such shares shall be allocated pro rata on a
share-by-share basis among all such shares at the time outstanding.  The Board
of Directors may fix a record date for the determination of holders of shares
of Series I Preferred Stock entitled to receive payment of a dividend or
distribution declared thereon, which record date shall be not more than 60
days prior to the date fixed for the payment thereof.

          Section 3.     Voting Rights.  The holders of shares of Series I
Preferred Stock shall have the following voting rights:

          (A)  Subject to the provision for adjustment hereinafter set forth,
each share of Series I Preferred Stock shall entitle the holder thereof to 100
votes on all matters submitted to a vote of the stockholders of the
Corporation.  In the event the Corporation shall at any time declare or pay
any dividend on the Common Stock payable in shares of Common Stock, or effect
a subdivision or combination or consolidation of the outstanding shares of
Common Stock (by reclassification or otherwise than by payment of a dividend
in shares of Common Stock) into a greater or lesser number of shares of Common
Stock, then in each such case the number of votes per share to which holders
of shares of Series I Preferred Stock were entitled immediately prior to such
event shall be adjusted by multiplying such number by a fraction, the
numerator of which is the number of shares of Common Stock outstanding
immediately after such event and the denominator of which is the number of
shares of Common Stock that were outstanding immediately prior to such event.

          (B)  Except as otherwise provided herein, in any other Certificate
of Designations creating a series of Preferred Stock or any similar stock, or
by law, the holders of shares of Series I Preferred Stock and the holders of
shares of Common Stock and any other capital stock of the Corporation having
general voting rights shall vote together as one class on all matters
submitted to a vote of stockholders of the Corporation.

          (C)  Except as set forth herein, or as otherwise provided by law,
holders of Series I      Preferred Stock shall have no special voting rights
and their consent shall not be required (except to the extent they are
entitled to vote with holders of Common Stock as set forth herein) for taking
any corporate action.

          Section 4.     Certain Restrictions.

          (A)  Whenever quarterly dividends or other dividends or
distributions payable on the Series I Preferred Stock as provided in Section 2
are in arrears, thereafter and until all accrued and unpaid dividends and
distributions, whether or not declared, on shares of Series I Preferred Stock
outstanding shall have been paid in full, the Corporation shall not:

               (i)  declare or pay dividends, or make any other distributions,
on any shares of stock ranking junior (either as to dividends or upon
liquidation, dissolution or winding up) to the Series I Preferred Stock;

               (ii) declare or pay dividends, or make any other distributions,
on any shares of stock ranking on a parity (either as to dividends or upon
liquidation, dissolution or winding up) with the Series I Preferred Stock,
except dividends paid ratably on the Series I Preferred Stock and all such
parity stock on which dividends are payable or in arrears in proportion to the
total amounts to which the holders of all such shares are then entitled;

               (iii)     redeem or purchase or otherwise acquire for
consideration shares of any stock ranking junior (either as to dividends or
upon liquidation, dissolution or winding up) to the Series I Preferred Stock,
provided that the Corporation may at any time redeem, purchase or otherwise
acquire shares of any such junior stock in exchange for shares of any stock of
the Corporation ranking junior (either as to dividends or upon dissolution,
liquidation or winding up) to the Series I Preferred Stock; or

               (iv) redeem or purchase or otherwise acquire for consideration
any shares of Series I Preferred Stock, or any shares of stock ranking on a
parity with the Series I Preferred Stock, except in accordance with a purchase
offer made in writing or by publication (as determined by the Board of
Directors) to all holders of such shares upon such terms as the Board of
Directors, after consideration of the respective annual dividend rates and
other relative rights and preferences of the respective series and classes,
shall determine in good faith will result in fair and equitable treatment
among the respective series or classes.

          (B)  The Corporation shall not permit any subsidiary of the
Corporation to purchase or otherwise acquire for consideration any shares of
stock of the Corporation unless the Corporation could, under paragraph (A) of
this Section 4, purchase or otherwise acquire such shares at such time and in
such manner.

          Section 5.     Reacquired Shares.  Any shares of Series I Preferred
Stock purchased or otherwise acquired by the Corporation in any manner
whatsoever shall be retired and cancelled promptly after the acquisition
thereof.  All such shares shall upon their cancellation become authorized but
unissued shares of Preferred Stock and may be reissued as part of a new series
of Preferred Stock subject to the conditions and restrictions on issuance set
forth herein, in the Certificate of Incorporation, or in any other Certificate
of Designations creating a series of Preferred Stock or any similar stock or
as otherwise required by law.

          Section 6.     Liquidation, Dissolution or Winding Up.  Upon any
liquidation, dissolution or winding up of the Corporation, no distribution
shall be made (1) to the holders of shares of stock ranking junior (either as
to dividends or upon liquidation, dissolution or winding up) to the Series I
Preferred Stock unless, prior thereto, the holders of shares of Series I
Preferred Stock shall have received $100 per share, plus an amount equal to
accrued and unpaid dividends and distributions thereon, whether or not
declared, to the date of such payment, provided that the holders of shares of
Series I Preferred Stock shall be entitled to receive an aggregate amount per
share, subject to the provision for adjustment hereinafter set forth, equal to
100 times the aggregate amount to be distributed per share to holders of
shares of Common Stock, or (2) to the holders of shares of stock ranking on a
parity (either as to dividends or upon liquidation, dissolution or winding up)
with the Series I Preferred Stock, except distributions made ratably on the
Series I Preferred Stock and all such parity stock in proportion to the total
amounts to which the holders of all such shares are entitled upon such
liquidation, dissolution or winding up.  In the event the Corporation shall at
any time declare or pay any dividend on the Common Stock payable in shares of
Common Stock, or effect a subdivision or combination or consolidation of the
outstanding shares of Common Stock (by reclassification or otherwise than by
payment of a dividend in shares of Common Stock) into a greater or lesser
number of shares of Common Stock, then in each such case the aggregate amount
to which holders of shares of Series I Preferred Stock were entitled
immediately prior to such event under the proviso in clause (1) of the
preceding sentence shall be adjusted by multiplying such amount by a fraction
the numerator of which is the number of shares of Common Stock outstanding
immediately after such event and the denominator of which is the number of
shares of Common Stock that were outstanding immediately prior to such event.

          Section 7.     Consolidation, Merger, etc.  In case the Corporation
shall enter into any consolidation, merger, combination or other transaction
in which the shares of Common Stock are exchanged for or changed into other
stock or securities, cash and/or any other property, then in any such case
each share of Series I Preferred Stock shall at the same time be similarly
exchanged or changed into an amount per share, subject to the provision for
adjustment hereinafter set forth, equal to 100 times the aggregate amount of
stock, securities, cash and/or any other property (payable in kind), as the
case may be, into which or for which each share of Common Stock is changed or
exchanged.  In the event the Corporation shall at any time declare or pay any
dividend on the Common Stock payable in shares of Common Stock, or effect a
subdivision or combination or consolidation of the outstanding shares of
Common Stock (by reclassification or otherwise than by payment of a dividend
in shares of Common Stock) into a greater or lesser number of shares of Common
Stock, then in each such case the amount set forth in the preceding sentence
with respect to the exchange or change of shares of Series I Preferred Stock
shall be adjusted by multiplying such amount by a fraction, the numerator of
which is the number of shares of Common Stock outstanding immediately after
such event and the denominator of which is the number of shares of Common
Stock that were outstanding immediately prior to such event.

          Section 8.     No Redemption.  The shares of Series I Preferred
Stock shall not be redeemable.

          Section 9.     Rank.  The Series I Preferred Stock shall rank, with
respect to the payment of dividends and the distribution of assets, junior to
all series of any other class of the Corporation's Preferred Stock.

          Section 10.    Amendment.  The Certificate of Incorporation of the
Corporation shall not be amended in any manner which would materially alter or
change the powers, preferences or special rights of the Series I Preferred
Stock so as to affect them adversely without the affirmative vote of the
holders of at least two-thirds of the outstanding shares of Series I Preferred
Stock, voting together as a single class.

          IN WITNESS WHEREOF, this Certificate of Designations is executed on
behalf of the Corporation by its Chairman of the Board and attested by its
Secretary this       day of            , 1997.


                                        _________________________________
                                        Chairman of the Board

Attest:


__________________________________
Secretary

<PAGE>

                                                        Exhibit B


                    Form of Right Certificate


Certificate No. R-                               __________ Rights

     NOT EXERCISABLE AFTER JUNE 30, 2007 OR EARLIER IF REDEMPTION
     OR EXCHANGE OCCURS.  THE RIGHTS ARE SUBJECT TO REDEMPTION
     AT $.01 PER RIGHT AND TO EXCHANGE ON THE TERMS SET FORTH IN
     THE RIGHTS AGREEMENT.

                        Right Certificate

                    Valero Energy Corporation
         (formerly Valero Refining and Marketing Company)

          This certifies that ____________________, or registered assigns, is
the registered owner of the number of Rights set forth above, each of which
entitles the owner thereof, subject to the terms, provisions and conditions of
the Rights Agreement, dated as of July 17, 1997(the "Rights Agreement"),
between Valero Energy Corporation (formerly Valero Refining and Marketing
Company), a Delaware corporation (the "Company"), and Harris Trust and Savings
Bank (the"Rights Agent"), to purchase from the Company at any time after the
Distribution Date (as such term is defined in the Rights Agreement) and prior
to 5:00 P.M., Chicago, Illinois time, on June 30, 2007 at the principal office
of the Rights Agent, or at the office of its successor as Rights Agent, one
one-hundredth of a fully paid non-assessable share of Junior Participating
Preferred Stock, Series I, par value $.01 per share (the "Preferred Shares"),
of the Company, at a purchase price of $______ per one one-hundredth of a
Preferred Share (the "Purchase Price"), upon presentation and surrender of
this Right Certificate with the Form of Election to Purchase duly executed.
The number of Rights evidenced by this Right Certificate (and the number of
one one-hundredths of a Preferred Share which may be purchased upon exercise
hereof) set forth above, and the Purchase Price set forth above, are the
number and Purchase Price as of __________, 1997, based on the Preferred
Shares as constituted at such date.  As provided in the Rights Agreement, the
Purchase Price and the number of one one-hundredths of a Preferred Share which
may be purchased upon the exercise of the Rights evidenced by this Right
Certificate are subject to modification and adjustment upon the happening of
certain events.

          This Right Certificate is subject to all of the terms, provisions
and conditions of the Rights Agreement, which terms, provisions and conditions
are hereby incorporated herein by reference and made a part hereof and to
which Rights Agreement reference is hereby made for a full description of the
rights, limitations of rights, obligations, duties and immunities hereunder of
the Rights Agent, the Company and the holders of the Right Certificates. 
Copies of the Rights Agreement are on file at the principal executive offices
of the Company and the above-mentioned offices of the Rights Agent.

          This Right Certificate, with or without other Right Certificates,
upon surrender at the principal office of the Rights Agent, may be exchanged
for another Right Certificate or Right Certificates of like tenor and date
evidencing Rights entitling the holder to purchase a like aggregate number of
Preferred Shares as the Rights evidenced by the Right Certificate or Right
Certificates surrendered shall have entitled such holder to purchase.  If this
Right Certificate shall be exercised in part, the holder shall be entitled to
receive upon surrender hereof another Right Certificate or Right Certificates
for the number of whole Rights not exercised.

          Subject to the provisions of the Rights Agreement, the Rights
evidenced by this Certificate (i) may be redeemed by the Company at a
redemption price of $0.01 per Right or (ii) maybe exchanged in whole or in
part for Preferred Shares or shares of the Company's Common Stock, par value
$0.01 per share.

          No fractional Preferred Shares will be issued upon the exercise of
any Right or Rights evidenced hereby (other than fractions which are integral
multiples of one one-hundredth of a Preferred Share, which may, at the
election of the Company, be evidenced by depositary receipts),but in lieu
thereof a cash payment will be made, as provided in the Rights Agreement.

          No holder of this Right Certificate shall be entitled to vote or
receive dividends or be deemed for any purpose the holder of the Preferred
Shares or of any other securities of the Company which may at any time be
issuable on the exercise hereof, nor shall anything contained in the Rights
Agreement or herein be construed to confer upon the holder hereof, as such,
any of the rights of a stockholder of the Company or any right to vote for the
election of directors or upon any matter submitted to stockholders at any 
meeting thereof, or to give or withhold consent to any corporate action, or to
receive notice of meetings or other actions affecting stockholders (except as
provided in the Rights Agreement), or to receive dividends or subscription
rights, or otherwise, until the Right or Rights evidenced by this Right
Certificate shall have been exercised as provided in the Rights Agreement.

          This Right Certificate shall not be valid or obligatory for any
purpose until it shall have been countersigned by the Rights Agent.

          WITNESS the facsimile signature of the proper officers of the
Company and its corporate seal.  Dated as of ___________________________,
19___.

ATTEST:                                 VALERO ENERGY CORPORATION
                                          (formerly Valero Refining and
                                             Marketing Company)


____________________________            By_____________________________

Countersigned:

HARRIS AND TRUST SAVINGS BANK


By__________________________
  Authorized Signature

<PAGE>

            Form of Reverse Side of Right Certificate

                        FORM OF ASSIGNMENT

         (To be executed by the registered holder if such
        holder desires to transfer the Right Certificate.)


          FOR VALUE RECEIVED _____________________ hereby sells, assigns and
transfers unto ________________________________________________________
                    (Please print name and address of transferee)
this Right Certificate, together with all right, title and interest therein,
and does hereby irrevocably constitute and appoint ________________________
Attorney, to transfer the within Right Certificate on the books of the
within-named Company, with full power of substitution.


Dated: __________________, 19______


                              __________________________________
                              Signature


Signature Guaranteed:

          Signatures must be guaranteed by a member firm of a registered
national securities exchange, a member of the National Association of
Securities Dealers, Inc., or a commercial bank or trust company having
an office or correspondent in the United States.

- --------------------------------------------------------------------------

          The undersigned hereby certifies that the Rights evidenced by this
Right Certificate are not beneficially owned by an Acquiring Person or an
Affiliate or Associate thereof (as defined in the Rights Agreement).


                              ___________________________________
                              Signature

<PAGE>

      Form of Reverse Side of Right Certificate -- continued


                   FORM OF ELECTION TO PURCHASE

          (To be executed if holder desires to exercise
          Rights represented by the Right Certificate.)


To:  VALERO ENERGY CORPORATION

          The undersigned hereby irrevocably elects to exercise            
Rights represented by this Right Certificate to purchase the Preferred Shares
issuable upon the exercise of such Rights and requests that certificates for
such Preferred Shares be issued in the name of:

Please insert social security
or other identifying number

___________________________________________________________________________
                 (Please print name and address)

___________________________________________________________________________

If such number of Rights shall not be all the Rights evidenced by this
Right Certificate, a new Right Certificate for the balance remaining of
such Rights shall be registered in the name of and delivered to:

Please insert social security
or other identifying number

___________________________________________________________________________
                 (Please print name and address)

___________________________________________________________________________

Dated: __________________, 19


                              ___________________________________
                              Signature

Signature Guaranteed:

          Signatures must be guaranteed by a member firm of a registered
national securities exchange, a member of the National Association of
Securities Dealers, Inc., or a commercial bank or trust company having
an office or correspondent in the United States.

<PAGE>

      Form of Reverse Side of Right Certificate -- continued

- --------------------------------------------------------------------------

          The undersigned hereby certifies that the Rights evidenced by this
Right Certificate are not beneficially owned by an Acquiring Person or an
Affiliate or Associate thereof (as defined in the Rights Agreement).


                              ___________________________________
                              Signature


                              NOTICE

          The signature in the Form of Assignment or Form of Election to
Purchase, as the case may be, must conform to the name as written upon the
face of this Right Certificate in every particular, without alteration or
enlargement or any change whatsoever.

          In the event the certification set forth above in the Form of
Assignment or the Form of Election to Purchase, as the case may be, is not
completed, the Company and the Rights Agent will deem the beneficial owner
of the Rights evidenced by this Right Certificate to be an Acquiring
Person or an Affiliate or Associate thereof (as defined in the Rights
Agreement) and such Assignment or Election to Purchase will not be honored.

<PAGE>

                                                        Exhibit C


                  SUMMARY OF RIGHTS TO PURCHASE
                         PREFERRED SHARES

          On July 17, 1997, the Board of Directors of Valero Refining and
Marketing Company (the "Company") declared a dividend of one preferred
share purchase right (a "Right") for each outstanding share of common
stock, par value $0.01 per share (the "Common Shares"), of the
Company.  Each Right entitles the registered holder to purchase from
the Company one one-hundredth of a share of Junior Participating Preferred
Stock, Series I, par value $0.01 per share (the "Preferred Shares"), of the
Company at a price of $100.00 per one one-hundredth of a Preferred Share
(the "Purchase Price"), subject to adjustment.  The description and terms
of the Rights are set forth in a Rights Agreement (the "Rights Agreement")
between the Company and Harris Trust and Savings Bank, as Rights Agent
(the "Rights Agent").

          Until the earlier to occur of (i) 10 days following a public
announcement that a person or group of affiliated or associated persons (an
"Acquiring Person") have acquired beneficial ownership of 15% or more of
the outstanding Common Shares or (ii) 10 business days (or such later date
as may be determined by action of the Board of Directors prior to such time
as any person or group of affiliated persons becomes an Acquiring Person)
following the commencement of, or announcement of an intention to make, a
tender offer or exchange offer the consummation of which would result in the
beneficial ownership by a person or group of 15% or more of the outstanding
Common Shares (the earlier of such dates being called the "Distribution
Date"), the Rights will be evidenced, with respect to any of the Common Share
certificates outstanding as of the Record Date, by such Common Share
certificate with a copy of this Summary of Rights attached thereto.

          The Rights Agreement provides that, until the Distribution Date (or
earlier redemption or expiration of the Rights), the Rights will be
transferred with and only with the Common Shares.  Until the Distribution Date
(or earlier redemption or expiration of the Rights), new Common Share
certificates issued after the Record Date upon transfer or new issuance of
Common Shares will contain a notation incorporating the Rights Agreement by
reference.  Until the Distribution Date (or earlier redemption or expiration
of the  Rights), the surrender for transfer of any certificates for Common
Shares outstanding as of the Record Date, even without such notation or a copy
of this Summary of Rights being attached thereto, will also constitute the
transfer of the Rights associated with the Common Shares represented by such
certificate.  As soon as practicable following the Distribution Date, separate
certificates evidencing the Rights ("Right Certificates") will be mailed to
holders of record of the Common Shares as of the close of business on the
Distribution Date and such separate Right Certificates alone will evidence the
Rights.

          The Rights are not exercisable until the Distribution Date.  The
Rights will expire on June 30, 2007 (the "Final Expiration Date"), unless the
Final Expiration Date is extended or unless the Rights are earlier redeemed or
exchanged by the Company, in each case, as described below.

          The Purchase Price payable, and the number of Preferred Shares or
other securities or property issuable, upon exercise of the Rights are subject
to adjustment from time to time to prevent dilution (i) in the event of a
stock dividend on, or a subdivision, combination or reclassification of, the
Preferred Shares, (ii) upon the grant to holders of the Preferred Shares of
certain rights or warrants to subscribe for or purchase Preferred Shares at a
price, or securities convertible into Preferred Shares with a conversion
price, less than the then-current market price of the Preferred Shares or
(iii) upon the distribution to holders of the Preferred Shares of evidences of
indebtedness or assets (excluding regular periodic cash dividends paid out of
earnings or retained earnings or dividends payable in Preferred Shares) or of
subscription rights or warrants (other than those referred to above).

          The number of outstanding Rights and the number of one
one-hundredths of a Preferred Share issuable upon exercise of each Right are
also subject to adjustment in the event of a stock split of the Common Shares
or a stock dividend on the Common Shares payable in Common Shares or
subdivisions, consolidations or combinations of the Common Shares occurring,
in any such case, prior to the Distribution Date.

          Preferred Shares purchasable upon exercise of the Rights will not be
redeemable.  Each Preferred Share will be entitled to a minimum preferential
quarterly dividend payment of $1 per share but will be entitled to an
aggregate dividend of 100 times the dividend declared per Common Share.  In
the event of liquidation, the holders of the Preferred Shares  will be
entitled to a minimum preferential liquidation payment of $100 per share but
will be entitled to an aggregate payment of 100 times the payment made per
Common Share.  Each Preferred Share will have 100 votes, voting together with
the Common Shares.  Finally, in the event of any merger, consolidation or
other transaction in which Common Shares are exchanged, each Preferred Share
will be entitled to receive 100 times the amount received per Common Share. 
These rights are protected by customary antidilution provisions. 

          Because of the nature of the Preferred Shares' dividend, liquidation
and voting rights, the value of the one one-hundredth interest in a Preferred
Share purchasable upon exercise of each Right should approximate the value of
one Common Share.

          In the event that the Company is acquired in a merger or other
business combination transaction or 50% or more of its consolidated assets or
earning power are sold after a person or group has become an Acquiring Person,
proper provision will be made so that each holder of a Right will thereafter
have the right to receive, upon the exercise thereof at the then current
exercise price of the Right, that number of shares of common stock of the
acquiring company which at the time of such transaction will have a market
value of two times the exercise price of the Right.  In the event that any
person or group of affiliated or associated persons becomes an Acquiring
Person, proper provision shall be made so that each holder of a Right, other
than Rights beneficially owned by the Acquiring Person (which will thereafter
be void), will thereafter have the right to receive upon exercise that number
of Common Shares having a market value of two times the exercise price of the
Right.

          At any time after any person or group becomes an Acquiring Person
and prior to the acquisition by such person or group of 50% or more of the
outstanding Common Shares, the Board of Directors of the Company may exchange
the Rights (other than Rights owned by such person or group which will have
become void), in whole or in part, at an exchange ratio of one Common Share,
or one one-hundredth of a Preferred Share (or of a share of a class or series
of the Company's preferred stock having equivalent rights, preferences and
privileges), per Right (subject to adjustment).

          With certain exceptions, no adjustment in the Purchase Price will be
required until cumulative adjustments require an adjustment of at least 1% in
such Purchase Price.  No fractional Preferred Shares will be issued (other
than fractions which are integral multiples of one one-hundredth  of a
Preferred Share, which may, at the election of the Company, be evidenced by
depositary receipts) and in lieu thereof, an adjustment in cash will be made
based on the market price of the Preferred Shares on the last trading day
prior to the date of exercise. 

          At any time prior to the acquisition by a person or group of
affiliated or associated persons of beneficial ownership of 15% or more of the
outstanding Common Shares, the Board of Directors of the Company may redeem
the Rights in whole, but not in part, at a price of $0.01 per Right (the
"Redemption Price").  The redemption of the Rights may be made effective at
such time on such basis with such conditions as the Board of Directors in its
sole discretion may establish.  Immediately upon any redemption of the Rights,
the right to exercise the Rights will terminate and the only right of the
holders of Rights will be to receive the Redemption Price.

          The terms of the Rights may be amended by the Board of Directors of
the Company without the consent of the holders of the Rights, including an
amendment to lower certain thresholds described above to not less than the
greater of (i) the sum of .001% and the largest percentage of the outstanding
Common Shares then known to the Company to be beneficially owned by any person
or group of affiliated or associated persons and (ii) 10%, except that from
and after such time as any person or group of affiliated or associated persons
becomes an Acquiring Person no such amendment may adversely affect the
interests of the holders of the Rights.

          Until a Right is exercised, the holder thereof, as such, will have
no rights as a stockholder of the Company, including, without limitation, the
right to vote or to receive dividends.

          A copy of the Rights Agreement has been filed with the Securities
and Exchange Commission as an Exhibit to a Registration Statement on Form S-1
dated May 13, 1997 (Registration No. 333-27013).  A copy of the Rights
Agreement is available free of charge from the Company.  This summary
description of the Rights does not purport to be complete and is qualified in
its entirety by reference to the Rights Agreement, which is hereby
incorporated herein by reference.




                              July 21, 1997


Board of Directors
Valero Refining and Marketing Company
530 McCullough Avenue
San Antonio, TX  78215

Ladies & Gentlemen:

     I am the Associate General Counsel of Valero Energy Corporation, a
Delaware corporation, the sole stockholder of Valero Refining and Marketing
Company, a Delaware corporation ("Valero"), and have acted as counsel for
Valero in connection with the proposed offering of up to 2,500,000 shares
of Common Stock, $.01 par value per share, of Valero (the "Shares"), together
with up to 2,500,000 Preferred Share Purchase Rights ("Rights") of Valero,
pursuant to the Valero Refining and Marketing Company Executive Stock Incentive
Plan (the "Plan").

     In connection therewith, I have examined, among other things, the
Restated Certificate of Incorporation and the By-laws of Valero, the corporate
proceedings with respect to the adoption of the Plan and the offering of the
Shares, the corporate proceedings with respect to the creation of the Rights
Agreement, dated as of July 17, 1997, between Valero and Harris Trust and
Savings Bank, as Rights Agent, and the Registration Statement on Form S-8 (the
"Registration Statement") to be filed by Valero with the Securities and
Exchange Commission for the registration of the Shares and the Rights under
the Securities Act of 1933, as amended (the "Act").

     Based on the foregoing, and having due regard for such legal
considerations as I have determined relevant, I am of the opinion that:

          1.   Valero is a corporation duly organized, validly existing and
in good standing under the laws of the State of Delaware.

          2.   The Shares and Rights proposed to be sold by Valero under the
Plan and which are original issuance securities have been duly authorized for
issuance and, subject to the Registration Statement becoming effective under
the Act and to compliance with any applicable Blue Sky laws and to the
issuance of such Shares and Rights in accordance with the provisions of the
Plan, when each certificate for a portion of such Shares has been executed by
Valero, authenticated by the Transfer Agent, registered by the Registrar and
delivered and sold in accordance with the Plan, (a) the Shares represented by
such certificate will be legally issued, fully paid and non-assessable shares
of Common Stock of Valero, and (b) the Rights trading with and represented by
such certificate for the Shares will be legally issued, fully paid and
non-assessable Preferred Share Purchase Rights of Valero entitled to the
benefits of the Rights Agreement.

     I hereby consent to the filing of this opinion as an Exhibit to the
Registration Statement and the references to myself therein.

                              Very truly yours,

                              /s/ Gregory C. King

                              Gregory C. King,
                              Associate General Counsel
                              to Valero Energy Corporation



                                                      EXHIBIT 23.1




            CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


As independent public accountants, we hereby consent to the incorporation by
reference in this Registration Statement of our report dated February 14, 1997
(except with respect to the matters discussed in Notes 1, 2 and 3, as to which
the date is May 9, 1997), included in Valero Refining and Marketing Company's
Form S-1 dated May 13, 1997, and to all references to our firm included in
this Registration Statement.



                                   /s/ Arthur Andersen LLP


San Antonio, Texas
July 18, 1997

                                                     EXHIBIT 23.2




            CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


As independent public accountants, we hereby consent to the incorporation by
reference in this Registration Statement of our report dated January 31, 1997
(except with respect to the matter discussed in Note 15, as to which the date
is March 17, 1997) on the financial statements of Basis Petroleum, Inc. and
subsidiaries included in Valero Refining and Marketing Company's Registration
Statement on form S-1 dated May 13, 1997 (Registration Statement No.
333-27013), and to all references to our firm included in this Registration
Statement.



                                   /s/ Arthur Andersen LLP


Houston, Texas
July 18, 1997



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