UNOCAL CORP
8-A12B, 2000-01-06
CRUDE PETROLEUM & NATURAL GAS
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                 ---------------


                                    FORM 8-A

                FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                     PURSUANT TO SECTION 12(b) OR 12(g) OF THE
                         SECURITIES EXCHANGE ACT OF 1934



                               UNOCAL CORPORATION
             (Exact name of registrant as specified in its charter)



            Delaware                                95-3825062
    (State of incorporation)            (IRS Employer Identification No.)



                              2141 Rosecrans Avenue
                                   Suite 4000
                          El Segundo, California 90245
               (Address of principal executive offices) (Zip Code)

      If this form relates to the registration of a class of securities pursuant
      to Section 12(b) of the Exchange Act and is effective pursuant to General
      Instruction A.(c), check the following box.  [X]

      If this form relates to the registration of a class of securities pursuant
      to Section 12(g) of the Exchange Act and is effective pursuant to General
      Instruction A.(d), check the following box.  [ ]

Securities to be registered pursuant to Section 12(b) of the Act:

      Title of Each Class                       Name of Each Exchange on Which
      to be so Registered                       Each Class is to be Registered
      -------------------                       ------------------------------
      Preferred Share Purchase Rights           New York Stock Exchange



Securities to be registered pursuant to Section 12(g) of the Act:  None




<PAGE>


ITEM 1.  DESCRIPTION OF REGISTRANT'S SECURITIES TO BE REGISTERED.

          On January 5, 2000, the Board of Directors of our Company,
Unocal Corporation, a Delaware corporation, declared a dividend of one preferred
share purchase right (a "Right") for each outstanding share of common stock, par
value $1.00 per share. The dividend is payable on January 29, 2000 to the
stockholders of record on January 29, 2000. These rights will replace similar
rights to purchase preferred stock that will expire on January 29, 2000.

          Our Board has adopted this Rights Agreement to protect stockholders
from coercive or otherwise unfair takeover tactics. In general terms, it works
by imposing a significant penalty upon any person or group which acquires 15% or
more of our outstanding common stock without the approval of our Board. The
Rights Agreement should not interfere with any merger or other business
combination approved by our Board.

          For those interested in the specific terms of the Rights Agreement
entered into between our Company and ChaseMellon Shareholder Services, L.L.C.,
as the Rights Agent, on January 5, 2000, we provide the following summary
description. Please note, however, that this description is only a summary and
is not complete, and should be read together with the entire Rights Agreement,
which is incorporated by reference and has been filed as an exhibit to this Form
8-A.

The Rights. Our Board authorized the issuance of a Right with respect to each
issued and outstanding share of common stock on January 29, 2000. The Rights
initially will trade with, and will be inseparable from, the common stock. The
Rights initially will be evidenced only by certificates or book-entry credits
that represent shares of common stock. New Rights will accompany all new shares
of common stock we issue after January 29, 2000, until the Distribution Date
described below.

Exercise Price. Each Right will allow its holder to purchase from our Company
one one-hundredth of a share of Series B Junior Participating Preferred Stock
(a "Preferred Share") for $180, once the Rights become exercisable. This portion
of a Preferred Share will give the stockholder approximately the same dividend,
voting, and liquidation rights as would one share of common stock. Prior to
exercise, the Right does not give its holder any dividend, voting, or
liquidation rights.

Exercisability.  The Rights will not be exercisable until

o  10 days after the public announcement that a person or group has
   become an "Acquiring Person" by obtaining beneficial ownership of 15% or more
   of our outstanding common stock, or, if earlier,

o  10 business days (or a later date determined by our Board before any
   person or group becomes an Acquiring Person) after a person or group begins a
   tender or exchange offer which, if consummated, would result in that person
   or group becoming an Acquiring Person.

          We refer to the date when the Rights become exercisable as the
"Distribution Date." Until that date, the common stock certificates or
book-entry credits that represent shares of common stock will also evidence the
Rights, and any transfer of shares of common stock will constitute a transfer of
the associated Rights. After that date, the Rights will separate from the common
stock




<PAGE>

and be evidenced by Rights certificates that we will mail to all eligible
holders of common stock. Any Rights held by an Acquiring Person will be void and
may not be exercised.

          Our Board may reduce the ownership threshold at which a person or
group becomes an Acquiring Person from 15% to not less than 10% of the
outstanding common stock.

Consequences of a Person or Group Becoming an Acquiring Person.

o  Flip In. If a person or group becomes an Acquiring Person, all holders
   of Rights except the Acquiring Person may, for $180, purchase shares of our
   common stock with a market value of $360, based on the market price of the
   common stock prior to such acquisition.

o  Flip Over. If our Company is later acquired in a merger or similar
   transaction after the Rights Distribution Date, all holders of Rights except
   the Acquiring Person may, for $180, purchase shares of the acquiring
   corporation with a market value of $360 based on the market price of the
   acquiring corporation's stock, prior to such merger.

Preferred Share Provisions.

Each one one-hundredth of a Preferred Share, if issued:

o  will not be redeemable.

o  will entitle holders to quarterly dividend payments of $.01 per share,
   or an amount equal to the dividend paid on one share of common stock,
   whichever is greater.

o  will entitle holders upon liquidation either to receive $1 per share
   or an amount equal to the payment made on one share of common stock,
   whichever is greater.

o  will have the same voting power as one share of common stock.

o  if shares of our common stock are exchanged via merger, consolidation,
   or a similar transaction, will entitle holders to a per share payment equal
   to the payment made on one share of common stock.

The value of one one-hundredth interest in a Preferred Share should approximate
the value of one share of common stock.

Expiration.  The Rights will expire on January 29, 2010.

Redemption. Our Board may redeem the Rights for $.001 per Right at any time
before any person or group becomes an Acquiring Person. If our Board redeems any
Rights, it must redeem all of the Rights. Once the Rights are redeemed, the only
right of the holders of Rights will be to receive the redemption price of $.001
per Right. The redemption price will be adjusted if we have a stock split or
stock dividends of our common stock.

Exchange. After a person or group becomes an Acquiring Person, but before an
Acquiring Person owns 50% or more of our outstanding common stock, our Board may
extinguish the

                                       2
<PAGE>

Rights by exchanging one share of common stock or an equivalent
security for each Right, other than Rights held by the Acquiring Person.

Anti-Dilution Provisions. Our Board may adjust the purchase price of the
Preferred Shares, the number of Preferred Shares issuable and the number of
outstanding Rights to prevent dilution that may occur from a stock dividend, a
stock split, a reclassification of the Preferred Shares or common stock. No
adjustments to the Exercise Price of less than 1% will be made.

Amendments. The terms of the Rights Agreement may be amended by our Board
without the consent of the holders of the Rights. However, our Board may not
amend the Rights Agreement to lower the ownership threshold at which a person or
group becomes an Acquiring Person to below 10% of our outstanding common stock.
In addition, the Board may not cause a person or group to become an Acquiring
Person by lowering this threshold below the percentage interest that such person
or group already owns. After a person or group becomes an Acquiring Person, our
Board may not amend the agreement in a way that adversely affects holders of the
Rights.

Other Registrations. From and after January 29, 2000, all registrations of the
existing Preferred Stock Purchase Rights (which expire January 29, 2000)
pursuant to registration statements of the Company (whether on Form S-3,
Form S-8 or otherwise) shall be deemed to be registrations of the replacement
Rights described herein.


                                       3
<PAGE>


ITEM 2.  EXHIBITS.

    4     Rights Agreement, dated as of January 5, 2000, between Unocal
          Corporation and ChaseMellon Shareholder Services, L.L.C.


                                       4
<PAGE>

                                    SIGNATURE

          Pursuant to the requirements of Section 12 of the Securities
Exchange Act of 1934, the registrant has duly caused this registration statement
to be signed on its behalf by the undersigned, thereunto duly authorized.

Dated:  January 6, 2000

                                    UNOCAL CORPORATION


                                    By:  /s/ JOE D. CECIL
                                        ----------------------------
                                  Name:      Joe D. Cecil
                                 Title:      Vice President and Comptroller



<PAGE>
                                  EXHIBIT LIST


Exhibit
  No.                              Description
  ---                              -----------

   4     Rights Agreement, dated as of January 5, 2000, between Unocal
         Corporation and ChaseMellon Shareholder Services, L.L.C.




                                                                       Exhibit 4










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


                               Unocal Corporation

                                       and

                    ChaseMellon Shareholder Services, L.L.C.


                                Rights Agreement

                          Dated as of January 5, 2000


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






<PAGE>


                                TABLE OF CONTENTS

                                                                     Page
                                                                    Number

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

Section 2.  Appointment of Rights Agent..........................6

Section 3.  Issue of Right Certificates..........................7

Section 4.  Form of Right Certificates...........................9

Section 5.  Countersignature and Registration....................10

Section 6.  Transfer, Split Up, Combination and Exchange
            of Right Certificates; Mutilated, Destroyed, Lost
            or Stolen Right Certificates.........................11

Section 7.  Exercise of Rights; Purchase Price;
            Expiration Date of Rights............................12

Section 8.  Cancellation and Destruction of Right Certificates...14

Section 9.  Availability of Preferred Shares.....................14

Section 10. Preferred Shares Record Date.........................15

Section 11. Adjustment of Purchase Price, Number of Shares or
            Number of Rights.....................................16

Section 12. Certificate of Adjusted Purchase Price or
            Number of Shares.....................................27

Section 13. Consolidation, Merger or Sale or Transfer of Assets or
            Earning Power........................................27

Section 14. Fractional Rights and Fractional Shares..............29

Section 15. Rights of Action.....................................31

Section 16. Agreement of Right Holders...........................31

Section 17. Right Certificate Holder Not Deemed a Stockholder....32

Section 18. Concerning the Rights Agent..........................33

Section 19. Merger or Consolidation or Change of Name of
            Rights Agent.........................................34

                                      -i-

<PAGE>

Section 20. Duties of Rights Agent...............................35

Section 21. Change of Rights Agent...............................38

Section 22. Issuance of New Right Certificates...................40

Section 23. Redemption...........................................40

Section 24. Exchange.............................................41

Section 25. Notice of Certain Events.............................43

Section 26. Notices..............................................45

Section 27. Supplements and Amendments...........................46

Section 28. Successors...........................................47

Section 29. Benefits of this Agreement...........................47

Section 30. Severability.........................................47

Section 31. Governing Law........................................47

Section 32. Counterparts.........................................48

Section 33. Descriptive Headings.................................48

Signatures.......................................................49



Exhibit A   -    Form of Certificate of Designations

Exhibit B   -    Form of Right Certificate

Exhibit C   -    Summary of Rights to Purchase Preferred Shares


                                      -ii-

<PAGE>

          Agreement, dated as of January 5, 2000, between Unocal Corporation,
a Delaware corporation (the "Company"), and ChaseMellon Shareholder Services,
L.L.C., as rights agent (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 outstanding on January 29, 2000 (the
"Record Date"), each Right representing the right to purchase one one-hundredth
of a Preferred Share (as hereinafter defined), 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 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.  Definitions. For purposes of this Agreement, the following
terms have the meanings indicated:

          (a) "Acquiring Person" shall mean any Person who or which, together
with all Affiliates and Associates of such Person, shall be the Beneficial Owner
of 15% or more of the Common Shares of the Company then outstanding, but shall
not include 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. 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
Common

<PAGE>

Shares of the Company outstanding, increases the proportionate number of Common
Shares of the Company 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" shall have the meaning ascribed to such term in Rule
12b-2 of the General Rules and Regulations under the Exchange Act as in effect
on the date of this Agreement.

          (c) "Associate" shall have the meaning ascribed to such term in Rule
12b-2 of the General Rules and Regulations under the Exchange Act as in effect
on the date of this Agreement.


                                       2
<PAGE>

          (d) 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 (A) 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


                                       3
<PAGE>

     offering of securities) for the purpose of acquiring, holding, voting
     (except to the extent contemplated by the proviso to Section 1(d)(ii)(B)
     hereof) 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.

          (e) "Business Day" shall mean any day other than a Saturday, a Sunday,
or a day on which banking institutions in the State of New Jersey or the State
of California authorized or obligated by law or executive order to close.

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

          (g) "Common Shares" when used with reference to the Company shall mean
the shares of common stock, par value $1.00 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.


                                       4
<PAGE>

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

          (i) "Exchange Act" shall mean the Securities Exchange Act of 1934, as
amended.

          (j) "Exchange Ratio" shall have the meaning set forth in Section 24(a)
hereof.

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

          (l) "NASDAQ" shall mean the National Association of Securities
Dealers, Inc. Automated Quotation System.

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

          (n) "Preferred Shares" shall mean shares of Series B Junior
Participating Preferred Stock, par value $0.10 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.

          (o) "Purchase Price" shall have the meaning set forth in Section 4
hereof.

          (p) "Record Date" shall have the meaning set forth in the second
paragraph hereof.

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


                                       5
<PAGE>

          (r) "Redemption Price" shall have the meaning set forth in Section
23(a) hereof.

          (s) "Right" shall have the meaning set forth in the second paragraph
hereof.

          (t) "Right Certificate" shall have the meaning set forth in Section
3(a) hereof.

          (u) "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.

          (v) "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.

          (w) "Summary of Rights" shall have the meaning set forth in Section
3(b) hereof.

          (x) "Trading Day" shall have the meaning set forth in Section 11(d)
hereof.

          Section 2.  Appointment of Rights Agent. The Company hereby appoints
the Rights Agent to act as agent for the Company 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, upon ten (10) days' prior written notice to the Rights
Agent. The Rights Agent shall have no duty to supervise, and shall in no event
be liable for, the acts or omissions of any such co-Rights Agent.


                                       6
<PAGE>

          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 of
the Company 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 of the Company 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 of the Company 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 of the Company aggregating 15% or more of the
then outstanding Common Shares of the Company (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 of the Company (or the book-entry credits
that represent Common Shares of the Company) registered in the names of the
holders thereof (which certificates or book-entry credits 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 of the Company. As soon as practicable after the
Distribution Date, the Company will notify the Rights Agent thereof and 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 and if provided with a
list of the record holders of Common



                                       7
<PAGE>

Shares of the Company, send) by first-class, insured, postage-prepaid mail, to
each record holder of Common Shares of the Company 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 of
the Company (or the book-entry credits that represent Common Shares of the
Company) outstanding as of the Record Date, until the Distribution Date, the
Rights will be evidenced by such certificates (or such book-entry credits)
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 of the Company (or any book-entry credit
that represents Common Shares of the Company) 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 of the
Company 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


                                       8
<PAGE>

or the Final Expiration Date shall have impressed on, printed on, written on or
otherwise affixed to them the following legend:

      This certificate also evidences and entitles the holder hereof to certain
      rights as set forth in an Agreement between Unocal Corporation and
      ChaseMellon Shareholder Services, L.L.C., dated as of January 5, 2000, as
      it may be amended from time to time (the "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 Unocal Corporation. Under certain
      circumstances, as set forth in the Agreement, such Rights (as defined in
      the Agreement) will be evidenced by separate certificates and will no
      longer be evidenced by this certificate. Unocal Corporation will mail to
      the holder of this certificate a copy of the Agreement without charge
      after receipt of a written request therefor. As set forth in the
      Agreement, Rights beneficially owned by any Person (as defined in the
      Agreement) who becomes an Acquiring Person (as defined in the Agreement)
      become null and void.

With respect to such certificates containing the foregoing legend, until the
Distribution Date, the Rights associated with the Common Shares of the Company
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 of the Company
represented thereby. In the event that the Company purchases or acquires any
Common Shares of the Company after the Record Date but prior to the Distribution
Date, any Rights associated with such Common Shares of the Company shall be
deemed cancelled and retired so that the Company shall not be entitled to
exercise any Rights associated with the Common Shares of the Company 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
and which do not affect the rights, duties or responsibilities of the Rights
Agent, or as may be required to



                                       9
<PAGE>

comply with any applicable law or with any applicable rule or regulation made
pursuant thereto or with any applicable rule or regulation of any stock exchange
or the National Association of Securities Dealers, Inc., 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 (if any), 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 individual 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 individual who, at the actual date of the execution of such Right
Certificate, shall be a proper officer of the Company to sign such



                                       10
<PAGE>

Right Certificate, although at the date of the execution of this Agreement any
such individual was not such an officer.

          Following the Distribution Date, the Rights Agent will keep or cause
to be kept, at its office designated for such purpose, 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 office of the Rights Agent
designated for such purpose. 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



                                       11
<PAGE>

governmental charge that may be imposed in connection with any transfer, split
up, combination or exchange of Right Certificates. The Rights Agent shall have
no duty or obligation under this Section 6 unless and until it is satisfied that
all such taxes and/or charges have been paid in full.

          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 satisfactory to them, and, at the Company'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 office of the Rights Agent designated
for such purpose, 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 January 29, 2010 (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.


                                       12
<PAGE>

          (b) The Purchase Price for each one one-hundredth of a Preferred Share
purchasable pursuant to the exercise of a Right shall initially be $180, 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 or governmental charge relating to transfers
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 any such 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 of the Preferred Shares with such
depositary agent) and the Company hereby directs such 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) promptly 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,
promptly deliver such cash to or upon the order of the registered holder of such
Right Certificate.



                                       13
<PAGE>

          (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 registered holder of such Right Certificate or to such
holder's 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 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 hereof.
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



                                       14
<PAGE>

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 transfer taxes and governmental charges relating to
transfers 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 or governmental
charge relating to transfers 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 transfer tax or governmental charge relating to
transfers shall have been paid (any such transfer tax or governmental charge
relating to transfers 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 transfer tax or governmental charge
relating to transfers 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 and
governmental charges relating to transfers) 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


                                       15
<PAGE>

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


                                       16
<PAGE>


exercised immediately prior to such date and at a time when the Preferred Shares
transfer books of the Company were open, such holder 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 hereof, 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 (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 the Company
(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 null and 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 hereof that represents Rights beneficially owned by an Acquiring
Person



                                       17
<PAGE>

whose Rights would be null and 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 null and 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 null and 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 subparagraph (ii) above, 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



                                       18
<PAGE>

security convertible into Preferred Shares or equivalent preferred shares) less
than the then current per share market price (as defined in Section 11(d)) of
the Preferred Shares 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 and shall be binding on the
Rights Agent and holders of the Rights. 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.


                                       19
<PAGE>

          (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 and shall be binding on the Rights Agent
and holders of the Rights) 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
then-current per share market price of the Preferred Shares on such record date;
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




                                       20
<PAGE>

consecutive Trading Days immediately prior to, but not including, 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 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

                                       21
<PAGE>

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) hereof (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.


                                       22
<PAGE>

          (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) hereof, inclusive, and
the provisions of Sections 7, 9, 10 and 13 hereof 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) hereof, upon each adjustment of the Purchase Price as a result
of the calculations made in Sections 11(b) and (c) hereof, 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 (A) 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 (B) dividing the product so obtained by the
Purchase Price in effect immediately after such adjustment of the Purchase
Price.



                                       23
<PAGE>

          (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 promptly notify the Rights Agent and 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


                                       24
<PAGE>

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
in 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 (and shall promptly notify the
Rights Agent of any such election) 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.


                                       25
<PAGE>

          (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 in Section 11(b) hereof, hereafter made by the Company to
holders of the 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


                                       26
<PAGE>

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, reasonably detailed statement of the facts and
computations accounting for such adjustment, (b) file with the Rights Agent and
with each transfer agent for the Common Shares or the Preferred Shares and the
Securities and Exchange Commission a copy of such certificate and (c) if such
adjustment occurs at any time after the Distribution Date, 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 contained therein, and shall have no duty with
respect to and shall not be deemed to have knowledge of any such adjustment
unless and until it shall have received such a 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, (a) the Company shall consolidate with, or merge
with and into, any other Person, (b) 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 (c) 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


                                       27
<PAGE>

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 of the Company 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


                                       28
<PAGE>

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


                                       29
<PAGE>

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 such holder's right to receive any fractional Rights or any fractional
shares upon exercise of a Right (except as provided above).


                                       30
<PAGE>

          (d) The Rights Agent shall have no duty or obligation with respect to
this Section 14 and Section 24(d) unless and until it has received specific
instructions (and sufficient cash, if required) from the Company with respect to
its duties and obligations under such Sections.

          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 such holder's own behalf and
for such holder's own benefit, enforce, and may institute and maintain any suit,
action or proceeding against the Company to enforce, or otherwise act in respect
of, such holder's 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:



                                       31
<PAGE>

          (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 office of the Rights Agent designated for such purpose, duly endorsed or
accompanied by a proper instrument of transfer;

          (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 Certificate 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; and

          (d) notwithstanding anything in this Agreement to the contrary,
neither the Company nor the Rights Agent shall have any liability to any holder
of a Right or other Person as a result of its inability to perform any of its
obligations under this Agreement by reason of any preliminary or permanent
injunction or other order, decree, judgment or ruling (whether interlocutory or
final) issued by a court of competent jurisdiction or by a governmental,
regulatory or administrative agency or commission, or any statute, rule,
regulation or executive order promulgated or enacted by any governmental
authority, prohibiting or otherwise restraining performance of such obligation.

          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



                                       32
<PAGE>

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 preparation
and delivery (not in excess of $3,400) and administration, execution and
amendment (if any) 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, damage, judgment, fine,
penalty, claim, demand, settlement, cost or expense incurred without gross
negligence, bad faith or willful misconduct on the part of the Rights Agent, for
any action taken, suffered or omitted by the Rights Agent in connection with the
acceptance and administration of this Agreement or the exercise or performance
of its duties hereunder, including, without limitation, the costs and expenses
of defending against any claim of liability in the premises; provided, that the
Company shall not be liable to indemnify the Rights Agent for any such loss,
liability, damage, judgment, fine, penalty, claim, demand, cost or expense so
incurred in connection with a settlement unless


                                       33
<PAGE>

the Company shall have consented to such settlement prior to its being entered
into. The indemnity provided herein shall survive the termination of this
Agreement and the termination and the expiration of the Rights.

          The Rights Agent 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 acceptance and administration of this Agreement or the exercise or
performance of its duties hereunder 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, association or other entity into which the Rights Agent
or any successor Rights Agent may be merged or with which it may be
consolidated, or any corporation, association or other entity resulting from any
merger or consolidation to which the Rights Agent or any successor Rights Agent
shall be a party, or any corporation, association or other entity succeeding to
the shareholder services business 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, association or other entity
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



                                       34
<PAGE>

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, and only the duties and obligations imposed by this
Agreement upon the following terms and conditions, by all of which the Company
and the holders of Right Certificates, by their acceptance thereof, shall be
bound:

          (a) The Rights Agent 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, and the Rights Agent
shall incur no liability for



                                       35
<PAGE>

or in respect of any action taken, suffered 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, suffering or omitting 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 (if any), any Vice President, the
Treasurer or the Secretary of the Company and delivered to the Rights Agent; and
such certificate shall be full authorization and protection to the Rights Agent,
and the Rights Agent shall incur no liability for or in respect of any action
taken, suffered or omitted 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 gross negligence, bad faith or willful misconduct.
Anything in this Agreement to the contrary notwithstanding, in no event shall
the Rights Agent be liable for special, punitive, indirect, incidental or
consequential loss or damage (including, but not limited to, lost profits).

          (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.


                                       36
<PAGE>

          (e) The Rights Agent shall not have any liability for, nor shall it be
under any responsibility in respect of the validity of this Agreement or the
execution and delivery hereof (except the due execution and delivery 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 hereof, 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 (if
any), any Vice President, the Secretary or the Treasurer of the Company, and to
apply to such officers for advice or instructions in

                                       37
<PAGE>

connection with its duties, and such advice or instructions shall be full
authorization and protection to the Rights Agent and the Rights Agent shall
incur no liability for or in respect of any action taken, suffered or omitted 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, member, Affiliate, 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 Person.

          (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, absent gross negligence or willful misconduct in the
selection and continued employment thereof.

          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 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. 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



                                       38
<PAGE>

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 (which holder
shall, with such notice, submit such holder's 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 Person organized and doing business under the laws of the
United States or of a state of the United States (so long as such Person is
authorized to do business as a banking institution in each state where such
authorization is required in order to carry out the duties of the Rights Agent
under this Agreement) which is authorized under applicable laws to exercise
corporate trust or stock transfer powers, in good standing, and 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



                                       39
<PAGE>

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 the Board of Directors of the Company 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 $.001 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 of the Company
may be made effective at such time, on such basis and with such conditions as
the Board of Directors of the Company, in its sole discretion, may establish.

          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



                                       40
<PAGE>

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 of the Company 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 null and 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 adjustment in the number
of Rights pursuant to Section 11(i) (such exchange ratio being hereinafter
referred to as the "Exchange Ratio"). Notwithstanding the foregoing, the Board
of Directors of the Company 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



                                       41
<PAGE>

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 holders 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 notify the Rights Agent and 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



                                       42
<PAGE>

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,
at any time after the Distribution Date, propose (i) to pay any dividend payable
in stock of any class to the holders of the Preferred Shares or to make any
other distribution to the holders of the Preferred Shares (other than a regular
quarterly cash dividend), (ii) to offer to the holders of the 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 the Preferred Shares (other
than a reclassification involving only the subdivision of outstanding Preferred
Shares), (iv) to effect any consolidation or merger into or



                                       43
<PAGE>

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 the Rights Agent and 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 the
Rights Agent and 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.


                                       44
<PAGE>

          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:

            Unocal Corporation
            2141 Rosecrans Avenue
            Suite 4000
            El Segundo, CA  90245
            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 sufficiently given or made
if sent by first-class mail, postage prepaid, addressed (until another address
is filed in writing with the Company) as follows:

            ChaseMellon Shareholder Services, L.L.C.
            400 South Hope Street
            4th Floor
            Los Angeles, CA  90071
            Attention: Relationship Manager

            with a copy to:

            ChaseMellon Shareholder Services, L.L.C.
            85 Challenger Road
            Ridgefield Park, NJ  07660
            Attention: General Counsel


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.



                                       45
<PAGE>

          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 to make, amend or change any provisions with respect to the
Rights which the Company may deem necessary or desirable, to cure any ambiguity,
or to correct or supplement any provision contained herein which may be
defective or inconsistent with any other provisions herein, 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. Upon the delivery
of a certificate from an appropriate officer of the Company which states that
the proposed supplement or amendment is in compliance with the terms of this
Section 27 (and provided such supplement or amendment does not change or
increase the Rights Agent's duties, liabilities or obligations hereunder, unless
the Rights Agent has consented), the Rights Agent shall execute such supplement
or amendment. 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) hereof to not less than
10% (the "Reduced Threshold"); provided, however, that no Person who
beneficially owns a number of Common Shares equal to or greater than the Reduced
Threshold shall become an Acquiring Person unless such Person shall, after the
public announcement or public filing of the Reduced Threshold, increase its
beneficial ownership of the then outstanding Common Shares (other than as a
result of an acquisition of Common Shares by the Company) to an amount equal to
or greater than the greater of (x) the Reduced Threshold or (y) the sum of (i)
the lowest beneficial ownership of such Person as a percentage of the



                                       46
<PAGE>

outstanding Common Shares as of any date on and after the date of public
announcement or public filing of such Reduced Threshold plus (ii) .001%.

          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 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; provided, however, that all provisions
regarding the rights, duties and obligations of the Rights Agent shall be



                                       47
<PAGE>

governed by and construed in accordance with the laws of the State of New York
applicable to contracts made and to be 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.


                                       48
<PAGE>

            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.

Attest:                                   UNOCAL CORPORATION


By:   /s/ BRIGITTE M. DEWEZ               By:    /s/ TIMOTHY H. LING
   ------------------------------             -------------------------------
   Name:  Brigitte M. Dewez                   Name:  Timothy H. Ling
   Title: Corporate Secretary                 Title: Chief Financial Officer and
                                                     Executive Vice President,
                                                     North American Energy
                                                     Operations



Attest:                                   CHASEMELLON SHAREHOLDER
                                           SERVICES, L.L.C.



By:   /s/ SHARON C. KNEPPER                By:   /s/ IAN D. GASS
   ------------------------                   --------------------------------
   Name:  Sharon C. Knepper                   Name:  Ian D. Gass
   Title: Vice President                      Title: Assistant Vice President

<PAGE>

                                                                       Exhibit A
                                      FORM

                                       of

                           CERTIFICATE OF DESIGNATIONS

                                       of

                  SERIES B JUNIOR PARTICIPATING PREFERRED STOCK

                                       of

                               UNOCAL CORPORATION

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


                             _______________________

          Unocal Corporation, 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 (hereinafter called the "Board of
Directors" or the "Board") as required by Section 151 of the General Corporation
Law at a meeting duly called and held on January 5, 2000:

          RESOLVED, that pursuant to the authority granted to and vested in
the Board of Directors in accordance with the provisions of the Restated
Certificate of Incorporation of the Corporation, the Board of Directors hereby
creates a series of Preferred Stock, par value $.10 per share, of the
Corporation, and hereby states the designation and number of shares, and fixes
the relative rights, preferences, and limitations thereof (in addition to the
provisions set forth in the Restated Certificate of Incorporation which are
applicable to the Preferred Stock of all classes and series) as follows:

          Section 1. Designation and Amount. The shares of such series shall be
designated as "Series B Junior Participating Preferred Stock" (the "Series B
Preferred Stock") and the number of shares constituting the Series B Preferred
Stock shall be 5,000,000. 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 B 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 and warrants and upon
the conversion of any outstanding securities issued by the Corporation
convertible into Series B 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 B Preferred Stock


                                       A-1
<PAGE>

     with respect to dividends, the holders of shares of Series B Preferred
     Stock, in preference to the holders of Common Stock, par value $1.00 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 B 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 B 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 B 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 B 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 B 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 B 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 B 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.

                                       A-2
<PAGE>

     Dividends paid on the shares of Series B 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 B
     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 B
Preferred Stock shall have the following voting rights:

          (A) Subject to the provision for adjustment hereinafter set forth,
     each share of Series B 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 B 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 B 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 B 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 B 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 B Preferred
     Stock outstanding shall have been paid in full, the Corporation shall not:

                                       A-3
<PAGE>

               (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 B 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 B
          Preferred Stock, except dividends paid ratably on the Series B
          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 B 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 B Preferred Stock; or

               (iv)  redeem or purchase or otherwise acquire for consideration
          any shares of Series B Preferred Stock, or any shares of stock ranking
          on a parity with the Series B 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 B 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
Restated 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 B
Preferred Stock unless, prior thereto, the holders of shares of Series B
Preferred Stock shall have received $100 per share, plus an amount equal to
accrued and unpaid



                                       A-4
<PAGE>

dividends and distributions thereon, whether or not declared, to the date of
such payment, provided that the holders of shares of Series B 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 B Preferred Stock,
except distributions made ratably on the Series B 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 B 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 B 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 B 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 B Preferred Stock
shall not be redeemable.

          Section 9. Rank. The Series B 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 Restated 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 B Preferred
Stock so as to affect them



                                       A-5
<PAGE>

adversely without the affirmative vote of the holders of at least two-thirds of
the outstanding shares of Series B Preferred Stock, voting together as a single
class.

          IN WITNESS WHEREOF, this Certificate of Designations is executed on
behalf of the Corporation by its Vice President, General Counsel and Chief Legal
Officer and attested by its Secretary this ____ day of ______, ____.



                                        UNOCAL CORPORATION



                                        By:_______________________________
                                             Dennis P.R. Codon
                                             Vice President, General Counsel and
                                             Chief Legal Officer
Attest:

_______________________
Brigitte M. Dewez
Corporate Secretary





                                       A-6
<PAGE>

                                                                       Exhibit B
                           Form of Right Certificate

Certificate No. R-                                               __ Rights

          NOT EXERCISABLE AFTER JANUARY 29, 2010 OR EARLIER IF REDEMPTION OR
          EXCHANGE OCCURS. THE RIGHTS ARE SUBJECT TO REDEMPTION AT $.001 PER
          RIGHT AND TO EXCHANGE ON THE TERMS SET FORTH IN THE AGREEMENT.

                                Right Certificate

                               UNOCAL CORPORATION

          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 Agreement, dated as of January 5, 2000 (the "Agreement"), between Unocal
Corporation, a Delaware corporation (the "Company"), and ChaseMellon Shareholder
Services, L.L.C., a New Jersey limited liability company (the "Rights Agent"),
to purchase from the Company at any time after the Distribution Date (as such
term is defined in the Agreement) and prior to 5:00 P.M., New York, New York
time, on January 29, 2010 at the office of the Rights Agent designated for such
purpose, or at the office of its successor as Rights Agent, one one-hundredth of
a fully paid non-assessable share of Series B Junior Participating Preferred
Stock, par value $0.10 per share, of the Company (the "Preferred Shares"), at a
purchase price of $180 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 ____________ __,
____, based on the Preferred Shares as constituted at such date. As provided in
the 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 Agreement, which terms, provisions and conditions are
hereby incorporated herein by reference and made a part hereof and to which
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 Agreement are on file at the principal executive offices of the Company.

          This Right Certificate, with or without other Right Certificates,
upon surrender at the office of the Rights Agent designated for such purpose,
may be exchanged for another Right Certificate or Right Certificates of like
tenor and date evidencing Rights entitling the holder to

                                       B-1
<PAGE>

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 Agreement, the Rights evidenced by
this Right Certificate (i) may be redeemed by the Company at a redemption price
of $.001 per Right or (ii) may be exchanged in whole or in part for Preferred
Shares or shares of the Company's Common Stock, par value $1.00 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 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 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
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 Agreement.

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


                                       B-2
<PAGE>


          WITNESS the facsimile signature of the proper officers of the
Company and its corporate seal. Dated as of ____________ __, ____.

ATTEST:                                   UNOCAL CORPORATION


                                          By:
_______________________                      ___________________________
Name:                                        Name:
Title:                                       Title:



Countersigned:


CHASEMELLON SHAREHOLDER
SERVICES, L.L.C.

By:____________________
   Name:
   Title:




                                       B-3
<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: ___________________


                                      _____________________________________
                                      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 Agreement).


                                        ____________________________________
                                        Signature


            Form of Reverse Side of Right Certificate -- continued

                                       B-4
<PAGE>

                          FORM OF ELECTION TO PURCHASE

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

To:  UNOCAL 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: _________________


                                                  ____________________________
                                                  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.


                                       B-5
<PAGE>


          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 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 Agreement) and such Assignment
or Election to Purchase will not be honored.



                                      B-6
<PAGE>
                                                                       Exhibit C

                          SUMMARY OF RIGHTS TO PURCHASE
                                PREFERRED SHARES


          On January 5, 2000, the Board of Directors of our Company,
Unocal Corporation, a Delaware corporation, declared a dividend of one preferred
share purchase right (a "Right") for each outstanding share of common stock, par
value $1.00 per share. The dividend is payable on January 29, 2000 to the
stockholders of record on January 29, 2000. These rights will replace similar
rights to purchase preferred stock that will expire on January 29, 2000.

          Our Board has adopted this Rights Agreement to protect stockholders
from coercive or otherwise unfair takeover tactics. In general terms, it works
by imposing a significant penalty upon any person or group which acquires 15% or
more of our outstanding common stock without the approval of our Board. The
Rights Agreement should not interfere with any merger or other business
combination approved by our Board.

          For those interested in the specific terms of the Rights Agreement
entered into between our Company and ChaseMellon Shareholder Services, L.L.C.,
as the Rights Agent, on January 5, 2000, we provide the following summary
description. Please note, however, that this description is only a summary and
is not complete, and should be read together with the entire Rights Agreement,
which has been filed with the Securities and Exchange Commission as an exhibit
to a Registration Statement on Form 8-A dated January 6, 2000. A copy of the
Rights Agreement is available free of charge from our Company.

The Rights. Our Board authorized the issuance of a Right with respect to each
issued and outstanding share of common stock on January 29, 2000. The Rights
initially will trade with, and will be inseparable from, the common stock. The
Rights initially will be evidenced only by certificates or book-entry credits
that represent shares of common stock. New Rights will accompany all new shares
of common stock we issue after January 29, 2000, until the Distribution Date
described below.

Exercise Price. Each Right will allow its holder to purchase from our Company
one one-hundredth of a share of Series B Junior Participating Preferred Stock
(a "Preferred Share") for $180, once the Rights become exercisable. This portion
of a Preferred Share will give the stockholder approximately the same dividend,
voting, and liquidation rights as would one share of common stock. Prior to
exercise, the Right does not give its holder any dividend, voting, or
liquidation rights.

Exercisability.  The Rights will not be exercisable until

o  10 days after the public announcement that a person or group has
   become an "Acquiring Person" by obtaining beneficial ownership of 15% or more
   of our outstanding common stock, or, if earlier,

o  10 business days (or a later date determined by our Board before any
   person or group becomes an Acquiring Person) after a person or group begins a
   tender or exchange offer which, if consummated, would result in that person
   or group becoming an Acquiring Person.


                                       C-1
<PAGE>


          We refer to the date when the Rights become exercisable as the
"Distribution Date." Until that date, the common stock certificates or
book-entry credits that represent shares of common stock will also evidence the
Rights, and any transfer of the associated shares of common stock will
constitute a transfer of the associated Rights. After that date, the Rights will
separate from the common stock and be evidenced by book-entry credits or by
Rights certificates that we will mail to all eligible holders of common stock.
Any Rights held by an Acquiring Person will be void and may not be exercised.

          Our Board may reduce the ownership threshold at which a person or
group becomes an Acquiring Person from 15% to not less than 10% of the
outstanding common stock.

Consequences of a Person or Group Becoming an Acquiring Person.

o  Flip In. If a person or group becomes an Acquiring Person, all holders
   of Rights except the Acquiring Person may, for $180, purchase shares of our
   common stock with a market value of $360, based on the market price of the
   common stock prior to such acquisition.

o  Flip Over. If our Company is later acquired in a merger or similar
   transaction after the Rights Distribution Date, all holders of Rights except
   the Acquiring Person may, for $180, purchase shares of the acquiring
   corporation with a market value of $360 based on the market price of the
   acquiring corporation's stock, prior to such merger.

Preferred Share Provisions.

Each one one-hundredth of a Preferred Share, if issued:

o  will not be redeemable.

o  will entitle holders to quarterly dividend payments of $.01 per share,
   or an amount equal to the dividend paid on one share of common stock,
   whichever is greater.

o  will entitle holders upon liquidation either to receive $1 per share
   or an amount equal to the payment made on one share of common stock,
   whichever is greater.

o  will have the same voting power as one share of common stock.

o  if shares of our common stock are exchanged via merger, consolidation,
   or a similar transaction, will entitle holders to a per share payment equal
   to the payment made on one share of common stock.

The value of one one-hundredth interest in a Preferred Share should approximate
the value of one share of common stock.

Expiration.  The Rights will expire on January 29, 2010.

Redemption. Our Board may redeem the Rights for $.001 per Right at any time
before any person or group becomes an Acquiring Person. If our Board redeems any
Rights, it must redeem all of the Rights. Once the Rights are redeemed, the only
right of the holders of Rights will be to



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receive the redemption price of $.001 per Right. The redemption price will be
adjusted if we have a stock split or stock dividends of our common stock.

Exchange. After a person or group becomes an Acquiring Person, but before an
Acquiring Person owns 50% or more of our outstanding common stock, our Board may
extinguish the Rights by exchanging one share of common stock or an equivalent
security for each Right, other than Rights held by the Acquiring Person.

Anti-Dilution Provisions. Our Board may adjust the purchase price of the
Preferred Shares, the number of Preferred Shares issuable and the number of
outstanding Rights to prevent dilution that may occur from a stock dividend, a
stock split, a reclassification of the Preferred Shares or common stock. No
adjustments to the Exercise Price of less than 1% will be made.

Amendments. The terms of the Rights Agreement may be amended by our Board
without the consent of the holders of the Rights. However, our Board may not
amend the Rights Agreement to lower the ownership threshold at which a person or
group becomes an Acquiring Person to below 10% of our outstanding common stock.
In addition, the Board may not cause a person or group to become an Acquiring
Person by lowering this threshold below the percentage interest that such person
or group already owns. After a person or group becomes an Acquiring Person, our
Board may not amend the agreement in a way that adversely affects holders of the
Rights.

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