EXHIBIT 10.10


                               SUN COMPANY, INC.
                   EXECUTIVE LONG-TERM STOCK INVESTMENT PLAN


                                   ARTICLE I

                                    General

       1.1  PURPOSE.  The purposes of this Sun Company, Inc. Executive Long-Term
     Stock Investment Plan (the "Plan") are to: (1) better align the interests
     of shareholders and management of Sun Company, Inc. and its subsidiaries
     and affiliates (collectively referred to as the "Company") by creating a
     direct linkage between participants' rewards and shareholders' gains; (2)
     provide management with an equity ownership in Sun Company, Inc.
     commensurate with Company performance, as reflected in increased
     shareholder value; (3) maintain competitive compensation levels; and (4)
     provide an incentive to management for continuous employment with the
     Company.

       1.2  ADMINISTRATION.  (a)  The Plan shall be administered by a Committee
     of disinterested persons appointed by the Board of Directors of Sun
     Company, Inc. (the "Committee"), as constituted from time to time.  The
     Committee shall consist of at least two members of the Board of Directors.
     During the year prior to commencement of service on the Committee, the
     Committee members will not have participated in, and while serving on the
     Committee, such members shall not be eligible for selection as persons to
     whom stock may be allocated or to whom stock options or stock appreciation
     rights may be granted under the Plan or any other discretionary plan of the
     Company under which participants are entitled to acquire stock, stock
     options or stock appreciation rights of Sun Company, Inc.

       (b)  The Committee shall have the authority, in its sole discretion and
     from time to time to:  (i) designate the employees or classes of employees
     eligible to participate in the Plan; (ii) grant awards provided in the Plan
     in such form and amount as the Committee shall determine; (iii) impose such
     limitations, restrictions and conditions upon any such award as the
     Committee shall deem appropriate; and (iv) interpret the Plan, adopt, amend
     and rescind rules and regulations relating to the Plan, and make all other
     determinations and take all other action necessary or advisable for the
     implementation and administration of the Plan.

       (c) Decisions and determinations of the Committee on all matters relating
     to the Plan shall be in its sole discretion and shall be conclusive.  No
     member of the Committee shall be liable

 
     for any action taken or decision made in good faith relating to the Plan or
     any award thereunder.

       1.3  ELIGIBILITY FOR PARTICIPATION.  Participants in the Plan shall be
     selected by the Committee from the executive officers and other key
     employees of the Company who occupy responsible managerial or professional
     positions and who have the capability of making a substantial contribution
     to the success of the Company.  In making this selection and in determining
     the form and amount of awards, the Committee shall consider any factors
     deemed relevant, including the individual's functions, responsibilities,
     value of services to the Company and past and potential contributions to
     the Company's profitability and sound growth.

       1.4  TYPES OF AWARDS UNDER PLAN.  Awards under the Plan may be in the
     form of any one or more of the following:

      (i)   Stock Options, as described in Article II;

      (ii)  Incentive Stock Options, as described in Article III;

      (iii) Reload Options (referred to and generally described as "Equity
            Options"), as described in Article IV;

      (iv)  Alternate Appreciation Rights, as described in Article V;

      (v)   Limited Rights, as described in Article VI; and/or

      (vi)  Restricted Stock Units, as described in Article VII.

       1.5  AGGREGATE LIMITATION ON AWARDS.  (a)  Shares of stock which may be
     issued under the Plan shall be authorized and unissued or treasury shares
     of Common Stock of Sun Company, Inc. ("Common Stock").  The maximum number
     of shares of Common Stock which may be issued under the Plan shall be 5.8
     million.

       (b) For purposes of calculating the maximum number of shares of Common
     Stock which may be issued under the Plan:  (i) all the shares issued
     (including the shares, if any, withheld for tax withholding requirements)
     shall be counted when cash is used as full payment for shares issued upon
     exercise of a Stock Option, Incentive Stock Option or Reload Option; (ii)
     only the shares issued (including the shares, if any, withheld for tax
     withholding requirements) as a result of an exercise of Alternate

 
     Appreciation Rights shall be counted; and (iii) only the net shares issued
     (including the shares, if any, withheld for tax withholding requirements)
     shall be counted when shares of Common Stock are used as full or partial
     payment for shares issued upon exercise of a Stock Option, Incentive Stock
     Option or Reload Option.

       (c) In addition to shares of Common Stock actually issued pursuant to the
     exercise of Stock Options, Incentive Stock Options, Reload Options or
     Alternate Appreciation Rights, there shall be deemed to have been issued a
     number of shares equal to the sum of

          (i) the number of shares of Common Stock in respect of which Limited
     Rights (as described in Article VI) shall have been exercised, and (ii) the
     number of Restricted Stock Units (as described in Article VII), the value
     of which the Company shall have paid under the Plan.

       (d) Shares tendered by a participant as payment for shares issued upon
     exercise of a Stock Option, Incentive Stock Option or Reload Option shall
     be available for issuance under the Plan. Any shares of Common Stock
     subject to a Stock Option, Incentive Stock Option or Reload Option which
     for any reason is terminated unexercised or expires shall again be
     available for issuance under the Plan, but shares subject to a Stock
     Option, Incentive Stock Option or Reload Option which are not issued as a
     result of the exercise of Limited Rights shall not again be available for
     issuance under the Plan.

       1.6  EFFECTIVE DATE AND TERM OF PLAN.  (a)  The Plan shall become
     effective on the date approved by the holders of a majority of the shares
     of Common Stock voting at the 1991 Annual Meeting of Shareholders of Sun
     Company, Inc.

       (b) No awards shall be made under the Plan after the last day of the
     Company's 1996 fiscal year provided, however, that the Plan and all awards
     made under the Plan prior to such date shall remain in effect until such
     awards have been satisfied or terminated in accordance with the Plan and
     the terms of such awards.

       1.7  PRIOR PLAN.  Effective on December 31, 1991, no further awards shall
     be made under the Sun Company, Inc. Long-Term Incentive Plan adopted in
     May, 1986 provided, however, that any rights theretofore granted under that
     plan shall not be affected.

 
                                   ARTICLE II

                                 Stock Options

       2.1  AWARD OF STOCK OPTIONS.  The Committee may from time to time, and
     subject to the provisions of the Plan and such other terms and conditions
     as the Committee may prescribe, grant to any participant in the Plan one or
     more options to purchase for cash or shares the number of shares of Common
     Stock ("Stock Options") allotted by the Committee.  The date a Stock Option
     is granted shall mean the date selected by the Committee as of which the
     Committee allots a specific number of options to a participant pursuant to
     the Plan.

       2.2  STOCK OPTION AGREEMENTS.  The grant of a Stock Option shall be
     evidenced by a written Stock Option Agreement, executed by the Company and
     the holder of a Stock Option (the "optionee"), stating the number of shares
     of Common Stock subject to the Stock Option evidenced thereby, and in such
     form as the Committee may from time to time determine.

       2.3  STOCK OPTION PRICE.  The option price per share of Common Stock
     deliverable upon the exercise of a Stock Option shall be 100% of the fair
     market value of a share of Common Stock on the date the Stock Option is
     granted.

       2.4  TERM AND EXERCISE.  Each Stock Option shall be fully exercisable six
     months from the date of its grant and unless a shorter period is provided
     by the Committee or by another Section of this Plan, may be exercised
     during a period of ten years from the date of grant thereof (the "option
     term").  No Stock Option shall be exercisable after the expiration of its
     option term.

       2.5  MANNER OF PAYMENT.  Each Stock Option Agreement shall set forth the
     procedure governing the exercise of the Stock Option granted thereunder,
     and shall provide that, upon such exercise in respect of any shares of
     Common Stock subject thereto, the optionee shall pay to the Company, in
     full, the option price for such shares with cash or with Common Stock.  All
     shares of Common Stock issued under the Sun Company, Inc. Executive Long-
     Term Incentive Plan, the Sun Company, Inc. Long-Term Incentive Plan or this
     Plan must be held at least six months before they may be used as payment of
     the option price.

       2.6  RESTRICTION ON CERTAIN SHARES.  As soon as practicable after receipt
     of payment, the Company shall deliver to the optionee a certificate or
     certificates for such shares of Common Stock.  The optionee shall become a
     shareholder of the

 
     Company with respect to Common Stock represented by share certificates so
     issued and as such shall be fully entitled to receive dividends, to vote
     and to exercise all other rights of a shareholder.  Notwithstanding the
     foregoing, a number of shares of Common Stock received upon the exercise of
     the options shall be subject to certain restrictions.  The number of shares
     subject to the restrictions shall be determined based on the optionee's
     method of financing the payment of the option price.  If the optionee
     finances the option exercise by borrowing money which is secured by
     unrestricted shares of Common Stock which will be sold to repay the loan,
     the number of shares subject to the restrictions shall be equal to the
     total number of shares received in the exercise of the option minus (i) the
     number of shares that needed to be sold in order to satisfy the loan,
     including interest thereupon, and any brokerage commissions involved in the
     sale of such stock and (ii) the number of shares which have a fair market
     value on the date of the option exercise equal to the applicable federal,
     state and local withholding tax on the option exercise.  If the optionee
     finances the payment of the option price by any other method, the number of
     shares subject to the restrictions shall be equal to the total number of
     shares received in the exercise of the option minus (i) the number of
     shares which have a fair market value on the date of the option exercise
     equal to the total amount paid for all the shares received in the option
     exercise and (ii) the number of shares which have a fair market value on
     the date of the option exercise equal to the applicable federal, state and
     local withholding tax on the option exercise.   The restrictions on these
     shares of Common Stock shall be as follows:

          (a) the optionee shall be prohibited from the sale, exchange,
              transfer, pledge, hypothecation, gift or other disposition of such
              shares of Common Stock until the earlier of the expiration of the
              option term or termination of the optionee's employment for any
              reason. Notwithstanding the foregoing, six months after the
              exercise of the option, such shares of Common Stock may be used as
              payment of the option price of shares issued upon the exercise of
              other Stock Options. However, all such shares issued will be
              restricted shares.

          (b) The restrictions shall apply to any new, additional or different
              securities the optionee may become entitled to receive with
              respect to such shares by virtue of a stock split or stock
              dividend or any other change in the corporate or capital structure
              of the Company.

 
          (c) Until such time as the restrictions hereunder lapse, the share
              certificate representing such shares shall contain a restrictive
              legend evidencing said restrictions. Alternatively, the optionee
              shall be required to deposit the share certificate with the
              Company or its agent, endorsed in blank or accompanied by a duly
              executed irrevocable stock power or other instrument of transfer.

       2.7  DEATH OF OPTIONEE.  (a)  Upon the death of the optionee, any rights
     to the extent exercisable on the date of death may be exercised by the
     optionee's estate, or by a person who acquires the right to exercise such
     Stock Option by bequest or inheritance or by reason of the death of the
     optionee, provided that such exercise occurs within both the remaining
     option term of the Stock Option and one year after the optionee's death.

       (b) The provisions of this Section shall apply notwithstanding the fact
     that the optionee's employment may have terminated prior to death, but only
     to the extent of any Stock Options exercisable on the date of death.

       2.8  RETIREMENT OR DISABILITY.  Upon termination of the optionee's
     employment by reason of retirement or permanent disability (as each is
     determined by the Committee), the optionee may, within 36 months from the
     date of termination, exercise any Stock Options to the extent such options
     are exercisable during such 36-month period.

       2.9  TERMINATION FOR OTHER REASONS.  Except as provided in Sections 2.7
     and 2.8, or except as otherwise determined by the Committee, all Stock
     Options shall terminate upon the termination of the optionee's employment;
     provided, however, that the Limited Rights (described herein at Article VI)
     awarded in tandem with such Stock Options shall not terminate and such
     Limited Rights shall remain exercisable during the Exercise Period for any
     optionee who:

       (a) was employed by the Company at the time of the Change in Control and
     is subsequently terminated by the Company other than for just cause; or

       (b) voluntarily terminates if such termination was the result of a good
     faith determination by the optionee that, as a result of the Change in
     Control, he is unable to effectively discharge his present duties or the
     duties of the position which he occupied just prior to the Change in
     Control.

 
       As used herein, "just cause" shall mean willful misconduct or dishonesty
     or conviction of or failure to contest prosecution for a felony or
     excessive absenteeism unrelated to illness.

       2.10  EFFECT OF EXERCISE.  The exercise of any Stock Option shall cancel
     that number of related Alternate Appreciation Rights and/or Limited Rights,
     if any, which is equal to the number of shares of Common Stock purchased
     pursuant to said options.


                                  ARTICLE III

                            Incentive Stock Options

       3.1  AWARD OF INCENTIVE STOCK OPTIONS.  The Committee may, from time to
     time and subject to the provisions of the Plan and such other terms and
     conditions as the Committee may prescribe, grant to any participant in the
     Plan one or more "incentive stock options" (intended to qualify as such
     under the provisions of Section 422 of the Internal Revenue Code of 1986,
     as amended ("Incentive Stock Options")) to purchase for cash or shares the
     number of shares of Common Stock allotted by the Committee.  The date an
     Incentive Stock Option is granted shall mean the date selected by the
     Committee as of which the Committee allots a specific number of options to
     a participant pursuant to the Plan.

       Notwithstanding the foregoing, Incentive Stock Options shall not be
     granted to any owner of 10% or more of the total combined voting power of
     the Company and its subsidiaries.

       3.2  INCENTIVE STOCK OPTION AGREEMENTS.  The grant of an Incentive Stock
     Option shall be evidenced by a written Incentive Stock Option Agreement,
     executed by the Company and the holder of an Incentive Stock Option (the
     "optionee"), stating the number of shares of Common Stock subject to the
     Incentive Stock Option evidenced thereby, and in such form as the Committee
     may from time to time determine.

       3.3  INCENTIVE STOCK OPTION PRICE.  The option price per share of Common
     Stock deliverable upon the exercise of an Incentive Stock Option shall be
     100% of the fair market value of a share of Common Stock on the date the
     Incentive Stock Option is granted.

 
       3.4  TERM AND EXERCISE.  Each Incentive Stock Option shall be fully
     exercisable six months from the date of its grant and unless a shorter
     period is provided by the Committee or another Section of this Plan, may be
     exercised during a period of ten years from the date of grant thereof (the
     "option term").  No Incentive Stock Option shall be exercisable after the
     expiration of its option term.

       3.5  MAXIMUM AMOUNT OF INCENTIVE STOCK OPTION GRANT.  The aggregate fair
     market value (determined on the date the option is granted) of Common Stock
     subject to an Incentive Stock Option granted to an optionee by the
     Committee in any calendar year shall not exceed $100,000.

       3.6  DEATH OF OPTIONEE.  (a)  Upon the death of the optionee, any
     Incentive Stock Option exercisable on the date of death may be exercised by
     the optionee's estate or by a person who acquires the right to exercise
     such Incentive Stock Option by bequest or inheritance or by reason of the
     death of the optionee, provided that such exercise occurs within both the
     remaining option term of the Incentive Stock Option and one year after the
     optionee's death.

       (b) The provisions of this Section shall apply notwithstanding the fact
     that the optionee's employment may have terminated prior to death, but only
     to the extent of any Incentive Stock Options exercisable on the date of
     death.

       3.7  RETIREMENT OR DISABILITY.  Upon the termination of the optionee's
     employment by reason of permanent disability or retirement (as each is
     determined by the Committee), the optionee may, within 36 months from the
     date of such termination of employment, exercise any Incentive Stock
     Options to the extent such Incentive Stock Options are exercisable during
     such 36-month period.  Notwithstanding the foregoing, the tax treatment
     available pursuant to Section 422 of the Internal Revenue Code of 1986 upon
     the exercise of an Incentive Stock Option will not be available to an
     optionee who exercises any Incentive Stock Option more than (i) 12 months
     after the date of termination of employment due to permanent disability or
     (ii) three months after the date of termination of employment due to
     retirement.

       3.8  TERMINATION FOR OTHER REASONS.  Except as provided in Sections 3.6
     and 3.7 or except as otherwise determined by the Committee, all Incentive
     Stock Options shall terminate upon the termination of the optionee's
     employment; provided, however,

 
     that the Limited Rights (described herein at Article VI) awarded in tandem
     with such Incentive Stock Options shall not terminate and such Limited
     Rights shall remain exercisable during the Exercise Period for any optionee
     who:

       (a) was employed by the Company at the time of the Change in Control and
     is subsequently terminated by the Company other than for just cause; or

       (b) voluntarily terminates if such termination was the result of a good
     faith determination by the optionee that, as a result of the Change in
     Control, he is unable to effectively discharge his present duties or the
     duties of the position which he occupied just prior to the Change in
     Control.

       As used herein, "just cause" shall mean willful misconduct or dishonesty
     or conviction of or failure to contest prosecution for a felony or
     excessive absenteeism unrelated to illness."

       3.9  APPLICABILITY OF STOCK OPTIONS SECTIONS.  Sections 2.5, Manner of
     Payment; 2.6, Restrictions on Certain Shares; and 2.10, Effect of Exercise,
     applicable to Stock Options, shall apply equally to Incentive Stock
     Options.  Said Sections are incorporated by reference in this Article III
     as though fully set forth herein.


                                   ARTICLE IV

                                 Reload Options

       4.1  AUTHORIZATION OF RELOAD OPTIONS.  Concurrently with the award of
     Stock Options and/or the award of Incentive Stock Options to any
     participant in the Plan, the Committee may authorize reload options
     ("Reload Options") to purchase for cash or shares a number of shares of
     Common Stock.  The number of Reload Options (which are referred to and
     generally described as "Equity Options") shall equal (i) the number of
     shares of Common Stock used to exercise the underlying Stock Options or
     Incentive Stock Options and (ii) to the extent authorized by the Committee,
     the number of shares of Common Stock used to satisfy any tax withholding
     requirement incident to the exercise of the underlying Stock Options or
     Incentive Stock Options.  The grant of a Reload Option will be effected
     upon the exercise of underlying Stock Options, Incentive Stock Options or
     Reload Options through the use of shares of Common Stock held by the
     optionee for at least 12 months.  Notwithstanding the fact that the
     underlying option may be an Incentive Stock Option, a Reload Option is not
     intended to qualify as an "incentive stock option" under Section 422 of the
     Internal Revenue Code of 1986.

 
       4.2  RELOAD OPTION AMENDMENT.  Each Stock Option Agreement and Incentive
     Stock Option Agreement shall state whether the Committee has authorized
     Reload Options with respect to the underlying Stock Options and/or
     Incentive Stock Options.  Upon the exercise of an underlying Stock Option,
     Incentive Stock Option or other Reload Option, the Reload Option will be
     evidenced by an amendment to the underlying Stock Option Agreement or
     Incentive Stock Option Agreement.

       4.3  RELOAD OPTION PRICE.  The option price per share of Common Stock
     deliverable upon the exercise of a Reload Option shall be the fair market
     value of a share of Common Stock on the date of grant of the Reload Option.

       4.4  TERM AND EXERCISE.  Each Reload Option is fully exercisable six
     months from the effective date of grant.  The term of each Reload Option
     shall be equal to the remaining option term of the underlying Stock Option
     and/or Incentive Stock Option.

       4.5  TERMINATION OF EMPLOYMENT.  No additional Reload Options shall be
     granted to optionees when Stock Options, Incentive Stock Options and/or
     Reload Options are exercised pursuant to the terms of this Plan following
     termination of the optionee's employment.

       4.6  APPLICABILITY OF STOCK OPTIONS SECTIONS.  Sections 2.5, Manner of
     Payment; 2.6, Restrictions on Certain Shares; 2.7, Death of Optionee; 2.8,
     Retirement or Disability; 2.9, Termination for Other Reasons; and 2.10,
     Effect of Exercise, applicable to Stock options, shall apply equally to
     Reload Options.  Said Sections are incorporated by reference in this
     Article IV as though fully set forth herein.


                                   ARTICLE V

                         Alternate Appreciation Rights

       5.1  AWARD OF ALTERNATE APPRECIATION RIGHTS.  Concurrently with or
     subsequent to the award of any Stock Option, Incentive Stock Option or
     Reload Option to purchase one or more shares of Common Stock, the Committee
     may, subject to the provisions of the Plan and such other terms and
     conditions as the Committee may prescribe, award to the optionee with
     respect to each share of Common Stock, a related alternate appreciation
     right ("Alternate Appreciation Right"), permitting the optionee to be paid
     the appreciation on the option in lieu of exercising the option.

 
       5.2  ALTERNATE APPRECIATION RIGHTS AGREEMENT.  Alternate Appreciation
     Rights shall be evidenced by written agreements in such form as the
     Committee may from time to time determine.

       5.3  EXERCISE.  An optionee who has been granted Alternate Appreciation
     Rights may, from time to time, in lieu of the exercise of an equal number
     of options, elect to exercise one or more Alternate Appreciation Rights and
     thereby become entitled to receive from the Company payment in Common Stock
     the number of shares determined pursuant to Sections 5.4 and 5.5.
     Alternate Appreciation Rights shall be exercisable only to the same extent
     and subject to the same conditions as the options related thereto are
     exercisable, as provided in this Plan.  The Committee may, in its
     discretion, prescribe additional conditions to the exercise of any
     Alternate Appreciation Rights.

       5.4  AMOUNT OF PAYMENT.  The amount of payment to which an optionee shall
     be entitled upon the exercise of each Alternate Appreciation Right shall be
     equal to 100% of the amount, if any, by which the fair market value of a
     share of Common Stock on the exercise date exceeds the fair market value of
     a share of Common Stock on the date the option related to said Alternate
     Appreciation Right was granted.

       5.5  FORM OF PAYMENT.  The number of shares to be paid shall be
     determined by dividing the amount of payment determined pursuant to Section
     5.4 by the fair market value of a share of Common Stock on the exercise
     date of such Alternate Appreciation Rights.  As soon as practicable after
     exercise, the Company shall deliver to the optionee a certificate or
     certificates for such shares of Common Stock.  All such shares shall be
     issued with the rights and restrictions specified in Section 2.6.

       5.6  EFFECT OF EXERCISE.  The exercise of any Alternate Appreciation
     Rights shall cancel an equal number of Stock Options, Incentive Stock
     Options, Reload Options and Limited Rights, if any, related to said
     Alternate Appreciation Rights.

       5.7  RETIREMENT OR DISABILITY.  Upon termination of the optionee's
     employment (including employment as a director of the Company after an
     optionee terminates employment as an officer or key employee of the
     Company) by reason of permanent disability or retirement (as each is
     determined by the Committee), the optionee may, within six months from the
     date of such termination, exercise any Alternate Appreciation Rights to the
     extent such Alternate Appreciation Rights are exercisable during such six-
     month period.

 
       5.8  DEATH OF OPTIONEE OR TERMINATION FOR OTHER REASONS.
     Except as provided in Section 5.7, or except as otherwise determined by the
     Committee, all Alternate Appreciation Rights shall terminate upon the
     termination of the optionee's employment or upon the death of the optionee;
     provided, however, that the Limited Rights (described herein at Article VI)
     awarded in tandem with such Alternate Appreciation Rights shall not
     terminate and such Limited Rights shall remain exercisable during the
     Exercise Period for any optionee who:

       (a) was employed by the Company at the time of the Change in Control and
     is subsequently terminated by the Company other than for just cause; or

       (b) voluntarily terminates if such termination was the result of a good
     faith determination by the optionee that, as a result of the Change in
     Control, he is unable to effectively discharge his present duties or the
     duties of the position which he occupied just prior to the Change in
     Control.

       As used herein, "just cause" shall mean willful misconduct or dishonesty
     or conviction of or failure to contest prosecution for a felony or
     excessive absenteeism unrelated to illness."


                                   ARTICLE VI

                                 Limited Rights

       6.1  AWARD OF LIMITED RIGHTS.  Concurrently with or subsequent to the
     award of any Stock Option, Incentive Stock Option, Reload Option or
     Alternate Appreciation Right, the Committee may, subject to the provisions
     of the Plan and such other terms and conditions as the Committee may
     prescribe, award to the optionee with respect to each share of Common
     Stock, a related limited right permitting the optionee, during a specified
     limited time period, to be paid the appreciation on the option in lieu of
     exercising the option ("Limited Right").

       6.2  LIMITED RIGHTS AGREEMENT.  Limited Rights granted under the Plan
     shall be evidenced by written agreements in such form as the Committee may
     from time to time determine.

       6.3  EXERCISE PERIOD.  Limited Rights are exercisable in full for a
     period of seven months following the date of a Change in Control of Sun
     Company, Inc.  (the "Exercise Period"); provided, however, that Limited
     Rights may not be exercised under

 
     any circumstances until the expiration of the six-month period following
     the date of grant.  As used in the Plan, a "Change in Control" shall be
     deemed to have occurred if:  (i) Continuing Directors cease, within one
     year of a Control Transaction, to constitute a majority of the Board (or of
     the Board of Directors of any successor to Sun Company, Inc., or to all or
     substantially all of its assets) or (ii) any entity, person or Group
     acquires shares of Sun Company, Inc. in a transaction or series of
     transactions that result in such entity, person or Group directly or
     indirectly owning beneficially more than fifty percent (50%) of the
     outstanding voting shares.

       As used herein, "Control Transaction" shall mean any of the following
     transactions or any combination thereof:  (1) any tender offer for or
     acquisition of capital stock of Sun Company, Inc., (2) any merger,
     consolidation or sale of all or substantially all of the assets of Sun
     Company, Inc., or (3) the submission of a nominee or nominees for the
     position of director of Sun Company, Inc. by a shareholder or a Group of
     shareholders in a proxy solicitation or otherwise.  As used herein,
     "Continuing Director" shall mean a Director who was a member of the Board
     of Directors immediately prior to a Control Transaction which results in a
     Change in Control.  As used herein, "Group" shall mean persons who act in
     concert as described in Sections 13(d)(3) and/or 14(d)(2) of the Securities
     Exchange Act of 1934, as amended."

       6.4  AMOUNT OF PAYMENT.  The amount of payment to which an optionee shall
     be entitled upon the exercise of each Limited Right shall be equal to 100%
     of the amount, if any, which is equal to the difference between the price
     per share of Common Stock covered by the related option on the date the
     option was granted and the market price of a share of such Common Stock.
     Market price is defined to be the greater of (i) the highest price per
     share of Common Stock paid in connection with any Change in Control and
     (ii) the highest price per share of Common Stock reflected in the
     consolidated trading tables of THE WALL STREET JOURNAL (presently the New
     York Stock Exchange Composite Transactions quotations) during the 60-day
     period prior to the Change in Control.

       6.5  FORM OF PAYMENT.  Payment of the amount to which an optionee is
     entitled upon the exercise of Limited Rights, as determined pursuant to
     Section 6.4, shall be made solely in cash.

       6.6  EFFECT OF EXERCISE.  If Limited Rights are exercised, the Stock
     Options, Incentive Stock Options, Reload Options and Alternate Appreciation
     Rights, if any, related to such Limited Rights cease to be exercisable to
     the extent of the number of shares with respect to which the Limited Rights
     were exercised.

 
     Upon the exercise or termination of the options, and Alternate Appreciation
     Rights, if any, related to such Limited Rights, the Limited Rights granted
     with respect thereto terminate to the extent of the number of shares as to
     which the related options and Alternate Appreciation Rights were exercised
     or terminated; provided, however, that with respect to Stock Options,
     Incentive Stock Options and/or Alternate Appreciation Rights that are
     terminated as a result of the termination of the optionee's employment
     status, the Limited Rights awarded in tandem therewith shall not terminate
     and such Limited Rights shall remain exercisable during the Exercise Period
     for any optionee who:

       (a) was employed by the Company at the time of the Change in Control and
     is subsequently terminated by the Company other than for just cause; or

       (b) voluntarily terminates if such termination was the result of a good
     faith determination by the optionee that, as a result of the Change in
     Control, he is unable to effectively discharge his present duties or the
     duties of the position which he occupied just prior to the Change in
     Control.

       As used herein, "just cause" shall mean willful misconduct or dishonesty
     or conviction of or failure to contest prosecution for a felony or
     excessive absenteeism unrelated to illness.

       6.7  RETIREMENT OR DISABILITY.  Upon termination of the optionee's
     employment (including employment as a director of this Company after an
     optionee terminates employment as an officer or key employee of this
     Company) by reason of permanent disability or retirement (as each is
     determined by the Committee), the optionee may, within six months from the
     date of termination, exercise any Limited Right to the extent such Limited
     Right is exercisable during such six-month period.

       6.8  DEATH OF OPTIONEE OR TERMINATION FOR OTHER REASONS. Except as
     provided in Sections 6.7 and 6.9, or except as otherwise determined by the
     Committee, all Limited Rights granted under the Plan shall terminate upon
     the termination of the optionee's employment or upon the death of the
     optionee.

       6.9  TERMINATION RELATED TO A CHANGE IN CONTROL.  The requirement that an
     optionee be terminated by reason of retirement or permanent disability or
     be employed by the Company at the time of exercise pursuant to Sections 6.7
     and 6.8 respectively, is waived during the Exercise Period as to any
     optionee who (i) was employed by the Company at the time of the Change in
     Control and (ii) is subsequently terminated by the Company other than for
     just cause or who voluntarily terminates if such termination was the result
     of a good faith determination

 
     by the optionee that as a result of the Change in Control he is unable to
     effectively discharge his present duties or the duties of the position
     which he occupied just prior to the Change in Control.  As used herein
     "just cause" shall mean willful misconduct or dishonesty or conviction of
     or failure to contest prosecution for a felony, or excessive absenteeism
     unrelated to illness.


                                  ARTICLE VII

                             Restricted Stock Units

       7.1  AWARD OF RESTRICTED STOCK UNITS.  The Committee may from time to
     time, and subject to the provisions of the Plan and such other terms and
     conditions as the Committee may prescribe, grant to any participant
     restricted rights to receive either cash or shares of Common Stock
     ("Restricted Stock Units").  At the time it grants any Restricted Stock
     Units, the Committee shall determine whether the payment of such Restricted
     Stock Units shall be conditioned upon either (i) the participant's
     continued employment with the Company throughout a stated period; or (ii)
     the attainment of certain predetermined performance targets during a stated
     period.

       7.2  RESTRICTED STOCK UNIT AGREEMENTS.  Restricted Stock Units granted
     under the Plan shall be evidenced by written agreements in such form as the
     Committee may from time to time determine.

       7.3  LENGTH OF RESTRICTION PERIOD.  Upon making an award, the Committee
     shall determine (and the Restricted Stock Unit Agreement shall state) the
     length of the applicable period during which employment must be maintained
     or certain performance targets must be attained (the "Restriction Period").
     Restriction Periods will normally be from three to five years; however, the
     Committee may establish other time periods in its sole discretion.

       7.4  NUMBER OF RESTRICTED STOCK UNITS.  Upon making an award, the
     Committee shall determine (and the Restricted Stock Unit Agreement shall
     state) the number of Restricted Stock Units granted.  The initial number of
     Restricted Stock Units granted may be adjusted by a performance factor, in
     accordance with Section 7.8, to be applied at the conclusion of the
     Restriction Period to determine the final number of Restricted Stock Units
     to be paid.

       7.5  DIVIDEND EQUIVALENT.  At the Committee's discretion, a holder of
     Restricted Stock Units will be entitled to receive payment from the Company
     in an amount equal to each cash dividend

 
     ("Dividend Equivalent") the Company would have paid to such holder had he,
     on the record date for payment of such dividend, owned of record shares of
     Common Stock equal to the number of Restricted Stock Units which had been
     awarded to such holder as of the close of business on such record date.
     Payment of the Dividend Equivalent is expressly conditioned on continued
     employment with the Company at the time of payment.  Each such payment
     shall be made by the Company on the payment date of the cash dividend in
     respect of which it is to be made, or as soon as practicable thereafter.

       7.6  PAYMENT OF RESTRICTED STOCK UNITS.  (a)  Payment in respect of
     Restricted Stock Units conditioned solely upon the participant's continued
     employment with the Company throughout the Restriction Period shall be made
     within 90 days after the Restriction Period for such units has ended.

       (b) Payment in respect of Restricted Stock Units conditioned upon the
     attainment of performance targets shall be made to the holder thereof
     within 90 days after the Restriction Period for such units has ended, but
     only to the extent the Committee determines that the applicable performance
     targets have been met and subject to any adjustment made to the number of
     Restricted Stock Units which shall be paid, pursuant to Section 7.8(b).

       7.7  FORM OF PAYMENT.  Payment for Restricted Stock Units shall be made
     in cash, shares of Common Stock or partly in cash and partly in Common
     Stock as the Committee shall determine in its sole discretion.  To the
     extent that payment is made in cash, the amount shall be determined by
     multiplying the number of Restricted Stock Units paid out by the fair
     market value of a share of Common Stock as of the close of business on the
     day after the Restriction Period has ended.  To the extent that payment is
     made in Common Stock, the number of shares paid shall be equal to the
     number of Restricted Stock Units so paid out.

       7.8  PERFORMANCE TARGETS.  (a)  Upon the award of Restricted Stock Units,
     the Committee may establish (and the Restricted Stock Unit Agreement shall
     state) the performance targets to be attained within the Restriction Period
     as a condition of such units being paid out.  Performance targets may be
     based entirely on each participant's business unit goals, or partially on
     business unit goals and partially on corporate goals, or entirely on
     corporate goals.  Goals may include qualitative as well as quantitative
     measures.  Performance targets may be adjusted during the Restriction
     Period, at the Committee's sole discretion, to reflect extraordinary events
     beyond management's control.

 
       (b) Attainment by the participant of performance targets in respect of a
     Restriction Period will result in 100% of the Restricted Stock Units being
     paid out.  Attainment of performance below the performance targets in
     respect of a Restriction Period shall result in a proportionate amount of
     the value of the units (on a scale from 0 to 100%) being paid out, as
     determined by the Committee.

       7.9  TERMINATION OF EMPLOYMENT.  Except as provided in Sections 7.10 and
     7.11, or except as otherwise determined by the Committee, all Restricted
     Stock Units granted to a participant under the Plan shall terminate upon
     termination of the participant's employment with the Company prior to the
     end of the Restriction Period applicable to such Restricted Stock Units,
     and in such event the participant shall not be entitled to receive any
     payment in respect thereof.

       7.10  DEATH, DISABILITY OR RETIREMENT.  In the event that the employment
     of a holder of Restricted Stock Units shall terminate during a Restriction
     Period by reason of death, permanent disability or retirement (as
     disability and retirement are determined by the Committee), such holder
     shall be entitled to receive upon the expiration of the Restriction Period,
     payment in respect of said Restricted Stock Units, as adjusted.  Such units
     shall be adjusted by multiplying the amount thereof by a fraction, the
     numerator of which shall be the number of full and partial calendar months
     between the date of award of the Restricted Stock Units and the date that
     employment terminated, and the denominator of which shall be the number of
     full and partial calendar months from the date of award to the end of the
     Restriction Period.

       7.11  ACCELERATION OF RESTRICTED STOCK UNITS.  (a) Notwithstanding any
     provisions to the contrary in Restricted Stock Unit Agreements or the
     provisions of Sections 7.1 through 7.8, if there is a Change in Control of
     the Company all outstanding Restricted Stock Units shall be payable in
     shares of Common Stock, regardless of whether the applicable Restriction
     Period has expired and regardless of whether the applicable performance
     targets have been met.

       (b) In the event of the occurrence of a Change in Control, the holder of
     Restricted Stock Units shall be entitled to receive payment thereunder
     within 90 days following the date of occurrence of such event.

       (c)  If a participant was employed by the Company at the time of the
     Change in Control and is subsequently terminated by the Company other than
     for just cause or who voluntarily terminates if such termination is the
     result of a good faith determination by the participant that as a result of
     the Change

 
     in Control he is unable to effectively discharge the duties of the position
     which he occupied just prior to the Change in Control, within the 90-day
     period as described in subsection (b), he shall be eligible to receive
     payment of Restricted Stock Units as provided in subsections (a) and (b).
     As used herein, "just cause" shall mean willful misconduct or dishonesty or
     conviction of or failure to contest prosecution for a felony, or excessive
     absenteeism unrelated to illness.

                                  ARTICLE VIII
                                 Miscellaneous

       8.1  GENERAL RESTRICTION.  Each award under the Plan shall be subject to
     the requirement that, if at any time the Committee shall determine that (i)
     the listing, registration or qualification of the shares of Common Stock
     subject or related thereto upon any securities exchange or under any state
     or Federal law, or (ii) the consent or approval of any government
     regulatory body, or (iii) an agreement by the recipient of an award with
     respect to the disposition of shares of Common Stock, is necessary or
     desirable as a condition of, or in connection with, the granting of such
     award or the issue or purchase of shares of Common Stock thereunder, such
     award may not be consummated in whole or in part unless such listing,
     registration, qualification, consent, approval or agreement shall have been
     effected or obtained free of any conditions not acceptable to the
     Committee.

       8.2  NON-ASSIGNABILITY.  No award under the Plan shall be assignable or
     transferable by the recipient thereof, except by will or by the laws of
     descent and distribution.  During the life of the recipient, such award
     shall be exercisable only by such person or by such person's guardian or
     legal representative.

       8.3  WITHHOLDING TAXES.  Whenever the Company proposes or is required to
     issue or transfer shares of Common Stock under the Plan, the Company shall
     have the right to require the participant to remit to the Company an amount
     sufficient to satisfy any Federal, state and/or local withholding tax
     requirements prior to the delivery of any certificate or certificates for
     such shares. Alternatively, the Company may issue or transfer such shares
     of Common Stock net of the number of shares sufficient to satisfy the
     withholding tax requirements.  For withholding tax purposes, the shares of
     Common Stock shall be valued on the date the withholding obligation is
     incurred.

       8.4  RIGHT TO TERMINATE EMPLOYMENT.  Nothing in the Plan or in any
     agreement entered into pursuant to the Plan shall confer upon any
     participant the right to continue in the employment of the Company or
     affect any right which the Company may have to terminate the employment of
     such participant.

 
       8.5  NON-UNIFORM DETERMINATIONS.  The Committee's determinations under
     the Plan (including without limitation determinations of the persons to
     receive awards, the form, amount and timing of such awards, the terms and
     provisions of such awards and the agreements evidencing same) need not be
     uniform and may be made by it selectively among persons who receive, or are
     eligible to receive, awards under the Plan, whether or not such persons are
     similarly situated.

       8.6  RIGHTS AS A SHAREHOLDER.  The recipient of any award under the Plan
     shall have no rights as a shareholder with respect thereto unless and until
     certificates for shares of Common Stock are issued to such recipient.

       8.7  DEFINITIONS.  In this Plan the following definitions shall apply:
     (a)  "Subsidiary" means any corporation of which, at the time more than 50%
     of the shares entitled to vote generally in an election of directors are
     owned directly or indirectly by Sun Company, Inc. or any subsidiary
     thereof.

       (b)  "Affiliate" means any person or entity which directly, or indirectly
     through one or more intermediaries, controls, is controlled by, or is under
     common control with Sun Company, Inc.

       (c) "Fair market value" as of any date and in respect of any share of
     Common Stock means the opening price on such date of a share of Common
     Stock (which price shall be the closing price on the previous trading day
     of a share of Common Stock on the New York Stock Exchange Composite
     Transactions as reflected in the consolidated trading tables of THE WALL
     STREET JOURNAL or any other publication selected by the Committee),
     provided that, if shares of Common Stock shall not have been traded on the
     New York Stock Exchange for more than 10 days immediately preceding such
     date or if deemed appropriate by the Committee for any other reason, the
     fair market value of shares of Common Stock shall be as determined by the
     Committee in such other manner as it may deem appropriate.  In no event
     shall the fair market value of any share of Common Stock be less than its
     par value.

       (d) "Option" means Stock Option, Incentive Stock Option or Reload Option.

       (e) "Option price" means the purchase price per share of Common Stock
     deliverable upon the exercise of a Stock Option, Incentive Stock Option or
     Reload Option.

 
       8.8  LEAVES OF ABSENCE.  The Committee shall be entitled to make such
     rules, regulations and determinations as it deems appropriate under the
     Plan in respect of any leave of absence taken by the recipient of any
     award.  Without limiting the generality of the foregoing, the Committee
     shall be entitled to determine (i) whether or not any such leave of absence
     shall constitute a termination of employment within the meaning of the Plan
     and (ii) the impact, if any, of any such leave of absence on awards under
     the Plan theretofore made to any recipient who takes such leave of absence.

       8.9  NEWLY ELIGIBLE EMPLOYEES.  The Committee shall be entitled to make
     such rules, regulations, determinations and awards as it deems appropriate
     in respect of any employee who becomes eligible to participate in the Plan
     or any portion thereof after the commencement of an award or incentive
     period.

       8.10  ADJUSTMENTS.  In any event of any change in the outstanding Common
     Stock by reason of a stock dividend or distribution, recapitalization,
     merger, consolidation, split-up, combination, exchange of shares or the
     like, the Committee may appropriately adjust the number of shares of Common
     Stock which may be issued under the Plan, the number of shares of Common
     Stock subject to options theretofore granted under the Plan, the option
     price of options theretofore granted under the Plan, the amount of
     Restricted Stock Units theretofore awarded under the Plan, the performance
     targets referred to in Section 7.8 and any and all other matters deemed
     appropriate by the Committee.

       8.11  AMENDMENT OF THE PLAN.  (a)  The Committee may, without further
     action by the shareholders and without receiving further consideration from
     the participants, amend this Plan or condition or modify awards under this
     Plan in response to changes in securities or other laws or rules,
     regulations or regulatory interpretations thereof applicable to this Plan
     or to comply with stock exchange rules or requirements.

       (b) The Committee may at any time and from time to time terminate or
     modify or amend the Plan in any respect, except that without shareholder
     approval the Committee may not (i) increase the maximum number of shares of
     Common Stock which may be issued under the Plan (other than increases
     pursuant to Section 8.10), (ii) extend the period during which any award
     may be granted or exercised, or (iii) extend the term of the Plan.  The
     termination or any modification or amendment of the Plan, except as
     provided in subsection (a), shall not without the consent of a participant,
     affect the participant's rights under an award previously granted.