CONOCO INC /DE
S-8, 1998-12-18
PETROLEUM REFINING
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<PAGE>   1
    As filed with the Securities and Exchange Commission on December 18, 1998
                                                     Registration No. 333-______
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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

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

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

                                   CONOCO INC.
             (Exact name of registrant as specified in its charter)

             DELAWARE                                      51-0370352     
    (State or other jurisdiction of                    (I.R.S. Employer  
     incorporation or organization)                    Identification No.)


        600 NORTH DAIRY ASHFORD                              77079
             HOUSTON, TEXAS                                (Zip Code)
(Address of Principal Executive Offices)


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


                 THRIFT PLAN FOR RETAIL EMPLOYEES OF CONOCO INC.
                            (Full title of the plan)


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


                                 R.A. HARRINGTON
                SENIOR VICE PRESIDENT, LEGAL, AND GENERAL COUNSEL
                                   CONOCO INC.
                             600 NORTH DAIRY ASHFORD
                              HOUSTON, TEXAS 77079
                     (Name and address of agent for service)

                                 (281) 293-1000
          (Telephone number, including area code, of agent for service)

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



                         CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
===================================================================================================================================
                                                                               PROPOSED        PROPOSED MAXIMUM
                                                         AMOUNT TO BE      MAXIMUM OFFERING   AGGREGATE OFFERING      AMOUNT OF
         TITLE OF SECURITIES TO BE REGISTERED           REGISTERED (2)   PRICE PER SHARE (3)       PRICE (3)       REGISTRATION FEE
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                                     <C>              <C>                  <C>                   <C>   
Class A Common Stock, par value $.01 per share(1).....     750,000             $21.19            $15,892,500          $4,419
===================================================================================================================================
</TABLE>

(1)      Includes the associated rights to purchase preferred stock, which
         initially are attached to and trade with the shares of Class A Common
         Stock being registered hereby.

(2)      Consists of shares of Class A Common Stock to be acquired by the
         Trustee of the Thrift Plan for Retail Employees of Conoco Inc. (the
         "Plan") pursuant to the operation thereof. In addition, pursuant to
         Rule 416(c) under the Securities Act of 1933, as amended (the
         "Securities Act"), this registration statement also covers an
         indeterminate amount of interests to be offered or sold pursuant to the
         Plan.

(3)      Estimated pursuant to Rules 457(c) and 457(h) under the Securities Act
         solely for the purpose of computing the registration fee and based upon
         the average of the high and low sales prices per share of Class A
         Common Stock reported on the New York Stock Exchange on December 15,
         1998.

================================================================================



<PAGE>   2



                                     PART I

              INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS


         Note: The document(s) containing the information concerning the Thrift
Plan for Retail Employees of Conoco Inc. (the "Plan") required by Item 1 of Form
S-8 and the statement of availability of registrant information and other
information required by Item 2 of Form S-8 will be sent or given to employees as
specified by Rule 428 under the Securities Act of 1933, as amended (the
"Securities Act"). In accordance with Rule 428 and the requirements of Part I of
Form S-8, such documents are not being filed with the Securities and Exchange
Commission (the "Commission") either as part of this Registration Statement or
as prospectuses or prospectus supplements pursuant to Rule 424 under the
Securities Act. The registrant will maintain a file of such documents in
accordance with the provisions of Rule 428. Upon request, the registrant will
furnish to the Commission or its staff a copy of any or all of the documents
included in such file.




<PAGE>   3



                                     PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT


ITEM 3.  INCORPORATION OF DOCUMENTS BY REFERENCE.

         The following documents filed with the Commission by Conoco Inc., a
Delaware corporation (the "Company"), pursuant to the Securities Act and the
Securities Exchange Act of 1934, as amended (the "Exchange Act") (File No.
001-14521), are incorporated in this Registration Statement by reference and
shall be deemed to be a part hereof:

                  (1) The Company's prospectus dated October 21, 1998 as filed
         with the Commission pursuant to Rule 424(b) under the Securities Act;

                  (2) The description of the Company's Class A Common Stock, par
         value $.01 per share (the "Common Stock"), contained in the Company's
         Registration Statement on Form 8-A filed on September 28, 1998, as
         thereafter amended from time to time for the purpose of updating,
         changing or modifying such description; and

                  (3) The Company's Quarterly Report on Form 10-Q for the
         quarterly period ended September 30, 1998.

         All documents filed by the Company or the Plan with the Commission
pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act subsequent
to the date of this Registration Statement and prior to the filing of a
post-effective amendment to this Registration Statement which indicates that all
securities offered hereby have been sold, or which deregisters all securities
then remaining unsold, shall be deemed to be incorporated in this Registration
Statement by reference and to be a part hereof from the date of filing of such
documents.

         Any statement contained in this Registration Statement, in an amendment
hereto or in a document incorporated by reference herein shall be deemed to be
modified or superseded for purposes of this Registration Statement to the extent
that a statement contained herein or in any subsequently filed amendment or
supplement to this Registration Statement or in any document that also is
incorporated by reference herein modifies or supersedes such statement. Any
statement so modified or superseded shall not be deemed, except as so modified
or superseded, to constitute a part of this Registration Statement.

ITEM 4.  DESCRIPTION OF SECURITIES.

         Not applicable.

ITEM 5.  INTERESTS OF NAMED EXPERTS AND COUNSEL.

         Not applicable.

ITEM 6.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

         Section 145 of the Delaware General Corporation Law provides that a
corporation may indemnify directors and officers as well as other employees and
individuals against expenses (including attorneys' fees), judgments, fines and
amounts paid in settlement in connection with specified actions, suits or
proceedings, whether civil, criminal, administrative or investigative (other
than an action by or in the right of the corporation--a "derivative action"), if
they acted in good faith and in a manner they reasonably believed to be in or
not opposed to the best interests of the corporation, and, with respect to any
criminal action or proceeding, had no reasonable cause to believe their conduct
was unlawful. A similar standard is applicable in the case of derivative
actions, except that indemnification only extends to expenses (including
attorneys' fees) incurred in connection with the defense or settlement of such
action, and the statute required court approval before there can be any
indemnification where the person seeking indemnification has been found liable
to the corporation. The statute provides that it is not exclusive of other
indemnification that may be granted by a corporation's charter, By-laws,
disinterested director vote, stockholder vote, agreement or otherwise.



<PAGE>   4



         Section 102(b)(7) of the Delaware General Corporation Law permits a
corporation to provide in its certificate of incorporation that a director of
the corporation shall not be personably liable to the corporation or its
stockholders for monetary damages for breach of fiduciary duty as a director,
except for liability (i) for any breach of the director's duty of loyalty to the
corporation or its stockholders, (ii) for acts or omissions not in good faith or
which involve intentional misconduct or a knowing violation of law, (iii) for
payments of unlawful dividends or unlawful stock repurchases or redemptions, or
(iv) for any transaction from which the director derived an improper personal
benefit.

         Article 5E(2) of the Registrant's Certificate of Incorporation provides
that no director shall be personally liable to the Company or any of its
stockholders for monetary damages for breach of fiduciary duty as a director,
except for liability (i) for any breach of the director's duty of loyalty to the
Company or its stockholders, (ii) for acts or omissions not in good faith or
which involve intentional misconduct or a knowing violation of law, (iii)
pursuant to section 174 of the Delaware General Corporation Law or (iv) for any
transaction from which the director derived an improper personal benefit. Any
repeal or modification of such Article 5E(2) shall not adversely affect any
right or protection of a director of the Registrant for or with respect to any
acts or omissions of such director occurring prior to such amendment or repeal.
The Company's By-laws provide for indemnification of directors and officers to
the maximum extent permitted by Delaware law.

         The Company has entered into indemnification agreements with each of
its directors (collectively, "Indemnitees"). Such agreements provide that, to
the fullest extent permitted by applicable law, the Company shall indemnify and
hold each Indemnitee harmless from and against any and all losses and expenses
whatsoever (i) arising out of any event or occurrence related to the fact that
such Indemnitee is or was a director or officer of the Company, is or was
serving in another capacity with the Company, consented to be named as a person
to be elected as a director of the Company in connection with the Company's
initial public offering of the Common Stock, or by reason of anything done or
not done by such Indemnitee in such capacity and (ii) incurred in connection
with any threatened, pending or completed legal proceeding.

ITEM 7.  EXEMPTION FROM REGISTRATION CLAIMED.

         Not Applicable.

ITEM 8.  EXHIBITS.

Exhibit
Number                              Document Description

  4.1       --       Second Amended and Restated Certificate of Incorporation of
                     the Company (incorporated by reference to Exhibit 3.1 of
                     the Quarterly Report of the Company on Form 10-Q for the
                     quarterly period ended September 30, 1998, File No.
                     001-14521).

  4.2       --       Bylaws of the Company, as amended (incorporated by
                     reference to Exhibit 3.2 of the Quarterly Report of the
                     Company on Form 10-Q for the quarterly period ended
                     September 30, 1998, File No. 001-14521).

  4.3       --       Form of certificate representing Class A Common Stock
                     (incorporated by reference to Exhibit 4.3 of the
                     Registration Statement of the Company on Form S-8,
                     Registration No. 333-65977).

  4.4       --       Rights Agreement dated as of October 19, 1998 between the
                     Company and First Chicago Trust Company of New York, as
                     Rights Agent, which includes as Exhibit A the form of
                     Certificate of Designations, Preferences and Rights of
                     Series A Junior Participating Preferred Stock, as Exhibit B
                     the form of Class A Rights Certificate and as Exhibit D the
                     Summary of Rights to Purchase Preferred Stock (incorporated
                     by reference to Exhibit 4.4 of the Registration Statement
                     of the Company on Form S-8, Registration No. 333-65977).

  4.5       --       Certificate of Designations, Preferences and Rights of
                     Series A Junior Participating Preferred Stock (incorporated
                     by reference to Exhibit 4.5 of the Registration Statement
                     of the Company on Form S-8, Registration No. 333-65977).


<PAGE>   5



  4.6       --       Amendment to Rights Agreement dated as of October 20, 1998
                     between the Company and First Chicago Trust Company of New
                     York, as Rights Agent (incorporated by reference to Exhibit
                     4.6 of the Registration Statement of the Company on Form
                     S-8, Registration No. 333-65977).

 *4.7       --       Form of Thrift Plan for Retail Employees of Conoco Inc.

*15.1       --       Awareness Letter of PricewaterhouseCoopers LLP.

 *23.1      --       Consent of PricewaterhouseCoopers LLP.

*24.1       --       Powers of Attorney (included on the signature page of the
                     Registration Statement).

- ------------------
*        Filed herewith.

         The use of original issuance securities is not contemplated. If
         original issuance securities are hereafter offered and sold, an opinion
         of counsel will be filed by amendment. The registrant will submit or
         has submitted the Plan and any amendment thereto to the Internal
         Revenue Service ("IRS") in a timely manner and has made or will make
         all changes required by the IRS in order to qualify the plan.

ITEM 9.  UNDERTAKINGS.

         (a)         The undersigned registrant hereby undertakes:

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

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

                     (ii)  To reflect in the prospectus any facts or events
             arising after the effective date of the Registration Statement (or
             the most recent post-effective amendment thereof) which,
             individually or in the aggregate, represent a fundamental change in
             the information set forth in the Registration Statement.
             Notwithstanding the foregoing, any increase or decrease in volume
             of securities offered (if the total dollar value of securities
             offered would not exceed that which was registered) and any
             deviation from the low or high end of the estimated maximum
             offering range may be reflected in the form of prospectus filed
             with the Securities and Exchange Commission pursuant to Rule 424(b)
             of the Securities Act of 1933 if, in the aggregate, the changes in
             volume and price represent no more than a 20% change in the maximum
             aggregate offering price set forth in the "Calculation of
             Registration Fee" table in the effective Registration Statement;

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

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

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

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



<PAGE>   6



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

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



<PAGE>   7



                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-8 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Houston, State of Texas, on December 18, 1998.

                                          CONOCO INC.


                                           By: /s/ Archie W. Dunham
                                               --------------------------------
                                               Archie W. Dunham
                                               President and Chief Executive
                                               Officer


                                POWER OF ATTORNEY

         Each person whose signature appears below appoints Archie W. Dunham,
Robert W. Goldman, Rick A. Harrington and Michael A. Gist, and each of them,
severally, as his true and lawful attorney or attorneys-in-fact and agent or
agents, each of whom shall be authorized to act with or without the other, with
full power of substitution and resubstitution, for him and in his name, place
and stead in his capacity as a director or officer or both, as the case may be,
of Conoco Inc., a Delaware corporation (the "Company"), to sign any and all
amendments (including post-effective amendments) to this Registration Statement,
and all documents or instruments necessary or appropriate to enable the Company
to comply with the Securities Act of 1933, and to file the same with the
Securities and Exchange Commission, with full power and authority to each of
said attorneys-in-fact and agents to do and perform in the name and on behalf of
each such director or officer, or both, as the case may be, each and every act
whatsoever that is necessary, appropriate or advisable in connection with any or
all of the above-described matters and to all intents and purposes as he might
or could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents or any of them or their substitutes, may lawfully
do or cause to be done by virtue hereof.

         PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THIS
REGISTRATION STATEMENT HAS BEEN SIGNED BY THE FOLLOWING PERSONS IN THE
CAPACITIES INDICATED AND ON DECEMBER 18, 1998.

<TABLE>
<CAPTION>
                         SIGNATURE                                                                  TITLE
                         ---------                                                                  -----
<S>                                                                             <C>
                   /s/ Archie W. Dunham                                         President, Chief Executive Officer and Director
- ------------------------------------------------------------
                     Archie W. Dunham


                   /s/ Robert W. Goldman                                        Senior Vice President, Finance, and Chief
- ------------------------------------------------------------                    Financial Officer (Principal Financial Officer and
                     Robert W. Goldman                                          Principal Accounting Officer)


                 /s/ Edgar S. Woolard, Jr.                                      Chairman of the Board and Director
- ------------------------------------------------------------
                   Edgar S. Woolard, Jr.


                    /s/ Ruth R. Harkin                                          Director
- ------------------------------------------------------------
                      Ruth R. Harkin


                  /s/ Frank A. McPherson                                        Director
- ------------------------------------------------------------
                    Frank A. McPherson
</TABLE>




<PAGE>   8




<TABLE>
<S>                                                                             <C>
                   /s/ Gary M. Pfeiffer                                         Director
- ------------------------------------------------------------
                     Gary M. Pfeiffer


                   /s/ William K. Reilly                                        Director
- ------------------------------------------------------------
                     William K. Reilly


                   /s/ William R. Rhodes                                        Director
- ------------------------------------------------------------
                     William R. Rhodes


                  /s/ Franklin A. Thomas                                        Director
- ------------------------------------------------------------
                    Franklin A. Thomas
</TABLE>





<PAGE>   9



         The Plan. Pursuant to the requirements of the Securities Act of 1933,
the trustee (or other persons who administer the employee benefit plan) have
duly caused this registration statement to be signed on behalf of the Plan by
the undersigned, thereunto duly authorized, in the City of Houston, State of
Texas, on December 18, 1998.

                                  THRIFT PLAN FOR RETAIL EMPLOYEES OF
                                  CONOCO INC.
                                  (Plan)


                                  By:  /s/ M. Rocconi, Jr.
                                      ------------------------------------------
                                      M. Rocconi, Jr.
                                      Senior Vice President, Human Resources of
                                      Conoco Inc.






<PAGE>   10




                                  EXHIBIT INDEX

<TABLE>
<CAPTION>
EXHIBIT NO.                                 DESCRIPTION                                                  PAGE NO.
- -----------                                 -----------                                                  --------
<S>                  <C>                                                                                 <C>
  4.1        --      Second Amended and Restated Certificate of Incorporation
                     of the Company (incorporated by reference to Exhibit 3.1 of
                     the Quarterly Report of the Company on Form 10-Q for the
                     quarterly period ended September 30, 1998, File No.
                     001-14521).

  4.2        --      Bylaws of the Company, as amended (incorporated by
                     reference to Exhibit 3.2 of the Quarterly Report of the
                     Company on Form 10-Q for the quarterly period ended
                     September 30, 1998, File No. 001-14521).

  4.3        --      Form of certificate representing Class A Common Stock
                     (incorporated by reference to Exhibit 4.3 of the
                     Registration Statement of the Company on Form S-8,
                     Registration No.
                     333-65977).

  4.4        --      Rights Agreement dated as of October 19, 1998 between
                     the Company and First Chicago Trust Company of New York, as
                     Rights Agent, which includes as Exhibit A the form of
                     Certificate of Designations, Preferences and Rights of
                     Series A Junior Participating Preferred Stock, as Exhibit B
                     the form of Class A Rights Certificate and as Exhibit D the
                     Summary of Rights to Purchase Preferred Stock (incorporated
                     by reference to Exhibit 4.4 of the Registration Statement
                     of the Company on Form S-8, Registration No. 333-65977).

  4.5        --      Certificate of Designations, Preferences and Rights of
                     Series A Junior Participating Preferred Stock (incorporated
                     by reference to Exhibit 4.5 of the Registration Statement
                     of the Company on Form S-8, Registration No. 333-65977).

  4.6        --      Amendment to Rights Agreement dated as of October 20,
                     1998 between the Company and First Chicago Trust Company of
                     New York, as Rights Agent (incorporated by reference to
                     Exhibit 4.6 of the Registration Statement of the Company on
                     Form S-8, Registration No. 333-65977).

 *4.7        --      Form of Thrift Plan for Retail Employees of Conoco Inc.

*15.1        --      Awareness Letter of PricewaterhouseCoopers LLP.

*23.1       --       Consent of PricewaterhouseCoopers LLP.

*24.1        --      Powers of Attorney (included on the signature page of the 
                     Registration Statement).
</TABLE>

- -------------------
*        Filed herewith.



<PAGE>   1
                                                                     EXHIBIT 4.7




                THRIFT PLAN FOR RETAIL EMPLOYEES OF CONOCO INC.


                             RULES AND REGULATIONS

                              Adopted [Date], 1998

                           Effective January 1, 1999
<PAGE>   2
SUMMARY OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                            PAGE
                                                                                                            ----
<S>     <C>                                                                                               <C>
I.      PURPOSE                                                                                              I-1

II.     DEFINITIONS                                                                                          II-1

III.    ELIGIBILITY AND PARTICIPATION                                                                        III-1
        A.       Eligibility Requirements
        B.       Commencement of Participation
        C.       Participation Non-Mandatory
        D.       Providing Plan Rules
        E.       Transfers to Conoco
        F.       Termination of Participation

IV.     EMPLOYEE PARTICIPATION                                                                               IV-1
        A.       Participation by Payroll Deduction
        B.       Change in Participation
        C.       Change in Participation for Highly
                 Compensated Participants
        D.       Participation by Direct Remittance
        E.       Temporary Employee--Insufficient Earnings
        F.       Transfer of Fund to Trustee
        G.       Internal Revenue Code Limitations

V.      CONOCO CONTRIBUTIONS                                                                                 V-1
        A.       Amount of Company Contributions
        B.       Additional Company Contributions
        C.       Transfer of Funds to Trustee

VI.     LIMITATION ON ANNUAL ADDITIONS                                                                       VI-1

VII.    INVESTMENT PROVISIONS                                                                                VII-1
        A.       Investment Direction
        B.       Fund Transfer(s)
        C.       Investment Options
        D.       Uninvested Funds
        E.       Trustee Action
        F.       Trustee - Maintenance of Assets

VIII.   CREDITS AND CHARGES TO EMPLOYEE ACCOUNTS                                                             VIII-1
        A.       Allocation of Income and Costs on Investments
</TABLE>

<PAGE>   3

<TABLE>
<S>     <C>                                                                                               <C>
IX.     SUSPENSION OF DEPOSITS                                                                               IX-1
        A.       Involuntary Suspension of Deposits
        B.       Voluntary Suspension of Deposits
        C.       Company Contributions During Suspension

X.      WITHDRAWALS                                                                                          X-1
        A.       Full Withdrawals - Retirement
        B.       Full Withdrawals - Other Than Retirement
        C.       Partial Withdrawals
        D.       Early Distribution Tax Exemption
        E.       Compliance with Minimum Distribution Rules
        F.       Waiver of Notice
        G.       Twenty Percent Withholding

XI.     LOANS                                                                                                XI-1
        A.       Eligibility for a Loan
        B.       Obtaining Funds for a Loan
        C.       Maximum Amount of Loan
        D.       Loan Repayment Period
        E.       Rate of Interest
        F.       Frequency of Loans
        G.       Method of Loan Repayment
        H.       Exceptions to Normal Method of Repayment
        I.       Prepayment of Loan Balance
        J.       Loan Defaults
        K.       Loan Administrator--Authority/Responsibilities
        L.       Suspension of Loans

XII.    BENEFICIARIES, TERMINATED EMPLOYEES AND
        ALTERNATE PAYEES                                                                                     XII-1
        A.       Beneficiary Designation
        B.       Payment to Beneficiary(s)
        C.       Payment to Terminated Employees
        D.       Qualified Domestic Relations Order
        E.       Sale of Business or Facility

XIII.   AFFILIATED COMPANIES                                                                                 XIII-1
        A.       Affiliated Company Participation
        B.       Affiliated Company Authority

XIV.    ADMINISTRATION                                                                                       IV-1
        A.       Trustee
        B.       Employee Benefit Plans Board
        C.       Thrift Plan Regulations
        D.       Recognition of Agency of a Member
        E.       Thrift Plan Audit
        F.       Reporting to Plan Members
        G.       Administrative Liability
        H.       Administrative Expense
        I.       Claims by Members
</TABLE>

<PAGE>   4

<TABLE>
<S>                                                                                                      <C>
XV.     NOTICES AND OTHER COMMUNICATIONS                                                                     XV-1
        A.       Plan Communication to Members
        B.       Member Communications to the Plan
        C.       Third-Party Communications to the Plan

XVI.    NONASSIGNABILITY                                                                                     XVI-1
        A.       Assignments After January 1, 1976
        B.       Assignments Prior to January 1, 1976
        C.       Trustee Payments to Lenders

XVII.   TERMS OF EMPLOYMENT UNAFFECTED                                                                       XVII-1

XVIII.  CONSTRUCTION                                                                                         XVIII-1

XIX.    PLAN MODIFICATION AND TERMINATION                                                                    XIX-1
        A.       Method of Modification
        B.       Members' Rights Upon Modification
        C.       Merger, Transfer or Consolidation of Plan

XX.     EFFECTIVE DATE                                                                                       XX-1
        A.       Board of Directors' Approval
        B.       Trustee Certification
        C.       Chapter 2 Members

XXI.    OPERATION OF THE PLAN AS A TOP-HEAVY PLAN                                                            XXI-1
        A.       Minimum Vesting
        B.       Minimum Contributions
        C.       Effect on Limitation on Annual Additions
        D.       Definitions

XXII.   QUALIFIED DOMESTIC RELATIONS ORDER                                                                   XXII-1
        A.       Status of QDRO
        B.       Distribution of Before Tax Account Funds

XXIII.  ROLLOVERS AND TRUST TO TRUST TRANSFERS
        A.       Rollovers/Transfers to Plan
        B.       Rollovers From Plan

XXIV.   MISCELLANEOUS                                                                                        XXIV-1
        A.       USERRA Compliance
        B.       Failure to Qualify Initially

APPENDIX A                                                                                                   A-1
</TABLE>

<PAGE>   5


                THRIFT PLAN FOR RETAIL EMPLOYEES OF CONOCO INC.


I.       PURPOSE

         The purpose of this Plan is to encourage Retail Employees to save
         systematically a portion of their current compensation and to assist
         them to accumulate additional means for the time of their retirement.





                                     I - 1
<PAGE>   6
II.      DEFINITIONS

         Unless the context otherwise requires, the following words as used
         herein shall have the following meanings:

         A.      "Affiliated Company" or "Affiliated Companies" shall mean any
                 corporation(s) of which Conoco Inc. owns, directly or
                 indirectly, at least 25 percent of the issued and outstanding
                 stock entitled to vote for the election of directors,  E. I.
                 du Pont de Nemours and Company, and any corporation(s) of
                 which E. I.  du Pont de Nemours and Company owns, directly or
                 indirectly, at least 25 percent of the issued and outstanding
                 stock entitled to vote for the election of directors.

         B.      "Annual Additions" shall mean the sum for any year of
                 Corporate Employer contributions, including contributions to a
                 Participant's Before-Tax Account, and the Participant's
                 Employee Contributions; provided, however, that Annual
                 Additions for any Plan Year before 1987 shall not be
                 recomputed to treat all Employee Contributions made by
                 Participants as Annual Additions.  Annual additions also shall
                 include contributions described in Code section 415(l) and
                 contributions for medical benefits within the meaning of Code
                 section 419A(f)(2).

         C.      "Basic Deposits" shall mean all deposits:

                  1.      Made by a Participant to his Employee Account on and
                          after January 1, 1999, on a monthly basis, other than
                          as provided in Article X.C.1.b., not in excess of six
                          percentage of the Participant's Compensation at the
                          time of such deposit; and

                  2.      Defined as Basic Deposits under the terms of the
                          Thrift Plan for Employees of Conoco Inc. that were
                          transferred to this Plan pursuant to a trust-to-trust
                          asset transfer from the Thrift Plan for Employees of
                          Conoco Inc.  Basic Deposits as defined in Article
                          II.C.1. shall not be eligible for matching Company
                          Contributions pursuant to Article V.A.1.

         D.      "Beneficiary Member" shall mean an entity (including, but not
                 limited to, individuals, trusts, estates, partnerships,
                 corporations, unincorporated organizations, and associations)
                 that has been designated as a beneficiary pursuant to Article
                 XII.A. And for which the Trustee holds an Employee Account.

         E.      "Benefit Board" shall mean the Employee Benefit Plans Board
                 created and appointed as provided in Article XIV.B. Hereof.

         F.      "Board" shall mean the Board of Directors of Conoco Inc.

         G.      "Code" shall mean the Internal Revenue Code of 1986, as
                 amended.





                                     II - 1
<PAGE>   7
         H.      "Company Contributions" shall mean all contributions to a
                 Participant's Employee Account made by Conoco pursuant to
                 Article V. of the Plan and all contributions made to a
                 Participant's Employee Account in the Thrift Plan for
                 Employees of Conoco Inc. made pursuant to Article V. of the
                 Thrift Plan of Employees of Conoco Inc. that are transferred
                 to this Plan pursuant to a trust-to-trust transfer of assets
                 from the Thrift Plan for Employees of Conoco Inc.  As used
                 herein, this term shall not include deposits to a
                 Participant's Before Tax Account.

         I.      "Compensation" shall mean the regular compensation paid to a
                 Participant for services rendered to Conoco, or which a
                 Participant has elected to defer pursuant to a cash or
                 deferred arrangement provided for under Section 401(k) of the
                 Code excluding any bonuses, commissions, overtime, or special
                 pay, under rules uniformly applicable to all Participants
                 similarly situated.  "Compensation" shall include amounts,
                 which a Participant contributed to a Dependent Care Spending
                 Account or a Health Care Spending Account sponsored by Conoco
                 Inc. as authorized by Section 125 of the Code.

                 The annual compensation of each Participant taken into account
                 for determining all benefits provided under the Plan for any
                 determination period shall not exceed $150,000, as such limit
                 is adjusted by the Secretary as provided under section 415(d)
                 of the Code.  If the period for determining compensation used
                 in calculating an allocation for a determination period is a
                 short Plan Year (i.e. shorter than 12 months), the annual
                 compensation limit is an amount equal to the otherwise
                 applicable annual compensation limit multiplied by a fraction,
                 the numerator of which is the number of months in the short
                 Plan Year, and the denominator of which is 12.

         J.      "Conoco" shall mean Conoco Inc., a Delaware corporation,
                 and/or any Affiliated Company participating in the Plan as
                 hereinafter provided in Article XIII.

         K.      "Corporate Employer" shall mean an employer as defined in Code
                 Section 414(b) and 414(c), as modified by Section 415(h) of
                 the Code.

         L.      "Defined Benefit Plan" shall mean any plan qualified under the
                 Internal Revenue Code, which is not a Defined Contribution
                 Plan.

         M.      The "Defined Benefit Plan Fraction" for any year shall mean a
                 fraction, the numerator of which is an amount representing the
                 total Projected Annual Benefit of the Participant under all
                 Defined Benefit Plans of the Corporate Employer, determined as
                 of the close of the year, and the denominator of which is the
                 lesser of (i) the product of 1.25 multiplied by $90,000 (or
                 such greater amount as may be allowable in accordance with
                 regulations, rulings, or other official announcements issued
                 by the Secretary of Treasury or his delegate), or (ii) the
                 product of 1.4 multiplied by 100% of the Participant's average
                 compensation for his high 3 years.





                                     II - 2
<PAGE>   8
         N.      "Defined Compensation" shall have the following meaning.
                 Compensation, for purposes of applying the limitations of
                 section 415, includes the following:  (a) wages, salaries,
                 fees for professional services and other amounts received
                 (whether or not in cash) for personal services actually
                 rendered in the course of employment with an employer
                 maintaining the plan to the extent includible in gross income
                 (including fringe benefits, reimbursements, and expense
                 allowances); (b) earned income (with respect to Employees
                 within the meaning of section 401(c)(1)); (c) foreign earned
                 income (as defined in section 911(b)); (d) amounts described
                 in sections 104(a)(3), 105(a) and 105(h) but only to the
                 extent they are includible in the Employee's gross income; (e)
                 amounts paid or reimbursed by the employer for moving expenses
                 incurred by the Employee to the extent that such amounts are
                 not deductible under section 217; (f) the value of a
                 nonqualified stock option granted to an Employee by the
                 employer to the extent the value is includible in the
                 Employee's gross income; and (g) the amount includible in the
                 Employee's gross income upon making the election in section
                 83(b); and (h) any elective deferral (as defined in section
                 402(g)(3)), and any amount which is contributed or deferred by
                 the employer at the election of the employee and which is not
                 includible in gross income of the employee by reason of
                 section 125 or 457.

                 Compensation for purposes of section 415 does not include the
                 following:  (a) distributions from a deferred compensation
                 plan (except from an unfunded nonqualified plan when
                 includible in gross income); (b) amounts realized from the
                 exercise of a nonqualified stock option, or when restricted
                 stock (or property) held by an Employee either becomes freely
                 transferable or is no longer subject to a substantial risk of
                 forfeiture; (c) amounts realized from the sale, exchange or
                 other disposition of stock acquired under a qualified stock
                 option; and (d) other amounts which receive special tax
                 benefits, such as premium for group term life insurance (to
                 the extent excludable from gross income) or employer
                 contributions for the purchase of an annuity contract
                 described in section 403(b) of the Code.

                 In determining whether there have been excess aggregate
                 contributions under Section 401(m) of the Code, "compensation
                 used in such determination shall be the same as "defined
                 compensation" described above.

         O.      "Defined Contribution Plan" shall mean a plan qualified under
                 the Code which provides for an individual account for each
                 Participant and for benefits based solely on the amounts
                 contributed to the Participant's Account, and any income,
                 expenses, gains, and losses which may be allocated to such
                 Participant's Employee Account.

         P.      The "Defined Contribution Plan Fraction" for any year shall
                 mean a fraction, the numerator of which is the sum of the
                 Annual Additions to the Participant's Employee Account in all
                 Defined Contribution Plans of the Corporate Employer as of the
                 close of the year, and the denominator of which is the sum of
                 the lesser of the following amounts determined for such year
                 and for each prior year of service with the Corporate
                 Employer:  (i) the product of 1.25 multiplied by the dollar
                 limitation





                                     II - 3
<PAGE>   9
                 under Section 415(c)(1)(A) of the Code for such year
                 (determined without regard to Section 415(c)(6) of the Code),
                 or (ii) the product of 1.4 multiplied by 25% of the Employee's
                 Defined Compensation for such year.  In applying this
                 definition with respect to years beginning before January 1,
                 1976:

                 1.       The aggregate amount taken into account in
                          determining the numerator of the Defined Contribution
                          Plan Fraction may not exceed the aggregate amount
                          taken into account in determining the denominator of
                          the Defined Contribution Plan Fraction, and

                 2.       The amount taken into account in determining the
                          amount of a Participant's Employee Contributions in
                          excess of 6 percent of his Defined Compensation for
                          any year concerned shall be an amount equal to:

                          a.      the excess of the aggregate amount of
                                  Employee Contributions for all years
                                  beginning before January 1, 1976, during
                                  which the Employee was an active Participant
                                  in the Defined Contribution Plan(s) of the
                                  Corporate Employer, over 10 percent of the
                                  Participant's aggregate Defined Compensation
                                  for all such years, multiplied by a fraction,
                                  the numerator of which is 1 and the
                                  denominator of which is the number of years
                                  beginning before January 1, 1976, during
                                  which the Employee was an active Participant
                                  in the Defined Contribution Plan.

                                  For the purpose of 2 above, Employee
                                  Contributions made on or after October 2,
                                  1973, shall be taken into account only to the
                                  extent that the amount of such contributions
                                  does not exceed the maximum amount of
                                  Employee Contributions permissible under the
                                  Defined Contribution Plan(s) as in effect on
                                  October 2, 1973.

                 An amount shall be subtracted from the numerator of the
                 Defined Contribution Plan Fraction (not exceeding such
                 numerator) as prescribed by the Secretary of the Treasury so
                 that the sum of the Defined Benefit Plan Fraction and the
                 Defined Contribution Plan Fraction computed under Code section
                 415(e)(1) does not exceed 1.0 for Plan Years after 1985.

         Q.      "Du Pont" shall mean E. I. du Pont de Nemours and Company, a
                 Delaware corporation.

         R.      "Employee" shall mean any person in the employ of Conoco,
                 other than a person who is receiving a pension, severance pay,
                 retainer, commission or fee under contract or an individual
                 who must be treated as an employee of Conoco for limited
                 purposes under the "leased employee" provisions of Section
                 414(n) of the Code, but shall exclude all persons engaged
                 exclusively in the operation of tankers, boats, and barges
                 except:





                                     II - 4
<PAGE>   10
                 1.       In the Gulf Intercoastal Waterway; and

                 2.       Offshore supply boats serving Conoco lightening
                          operations in the Gulf of Mexico.

                 Any person shall cease to be an Employee, as defined herein,
                 on termination of service, and shall not again become an
                 Employee for purposes of this Plan prior to his reemployment
                 date unless he is rehired prior to incurring a One-Year
                 Break-in-Service.

                 The term "Employee" shall include an individual who must be
                 treated as an Employee under section 414(n) of the Code (a
                 "Leased Employee"), but only to the extent required by that
                 Code section and final regulations thereunder.  A Leased
                 Employee shall be treated as an Employee for purposes of
                 determining Hours of Service for participation and
                 nonforfeitability of benefits (in the event the individual
                 becomes an Employee without regard to this paragraph).  A
                 Leased Employee shall be treated as an Employee for purposes
                 of the other requirements set out in section 414(n)(3) of the
                 Code.

         S.      "Employee(s) Account(s)" or "Employee's Account" shall mean
                 all cash and other assets held by the Trustee under the Plan
                 for the account of a Member.

                 1.       "Regular Account" shall mean all cash and other
                          assets held by the Trustee which resulted from
                          contributions made to the Plan, or earnings thereon,
                          other than those in a Member's Before-Tax Account.

                 2.       "Before-Tax Account" shall mean all cash and other
                          assets held by the Trustee which resulted from
                          contributions made to the Plan designated for the
                          Before-Tax Account, or earnings thereon, pursuant to
                          a cash or deferred arrangement of Section 401(k) of
                          the Code.

         T.      "Employee Contributions" shall mean all Basic Deposits made by
                 a Participant to his Employee Account, all Supplemental
                 Deposits made by a Participant or a Transferred Member to his
                 Employee Account, and all assets transferred to this Plan in a
                 trust-to-trust transfer from the Thrift Plan for Employees of
                 Conoco Inc. that were defined as Employee Contributions under
                 the terms of the Thrift Plan for Employees of Conoco Inc.
                 Employee Contributions shall not include Basic Deposits made
                 by a Participant to his Before Tax Account for purposes of
                 Article II.B.

         U.      "Employment Date" shall mean the date on which an Employee is
                 first employed by Conoco and on which an Employee completes
                 one hour of service.





                                     II - 5
<PAGE>   11
         V.      "Fund Transfer" shall mean an instruction by a Member to the
                 Trustee to sell, liquidate, or redeem any investment in an
                 Investment Option Fund in such Member's Employee Account, and
                 transfer the proceeds to another Investment Option Fund in his
                 Employee Account pursuant to the terms of the Plan.  A Fund
                 Transfer may not be made from an Investment Option Fund in a
                 Member's Regular Account to an Investment Option Fund in a
                 Member's Before Tax Account, or vice versa.

         W.      "Hardship" shall mean a showing by a Participant (1) that he
                 has an immediate and heavy financial need and (2) that the
                 hardship distribution is necessary to satisfy the immediate
                 and heavy financial need.


                 A.       Immediate and Heavy Financial Need

                          A Participant may establish the existence of an
                          immediate and heavy financial need in one of two
                          ways.

                          1.      Facts and Circumstances Need Requirements

                                  A Participant may demonstrate by facts and
                                  circumstances the existence of an immediate
                                  and heavy financial need created by an
                                  emergency or extraordinary circumstance.

                          2.      Deemed Need Requirements

                                  A Participant may show that his immediate and
                                  heavy financial need results from one of the
                                  following deemed hardship conditions:

                                  a.       Medical expenses described in
                                           Section 213(d) of the Code incurred
                                           by the Participant, the
                                           Participant's spouse or any
                                           dependents of the Participant.

                                  b.       Purchase (excluding mortgage
                                           payments) of a principal residence
                                           for the Participant.

                                  c.       Payment of tuition and related
                                           educational fees for the next 12
                                           months of post-secondary education
                                           for the Participant, the
                                           Participant's spouse, children or
                                           dependents; or

                                  d.       The need to prevent the eviction of
                                           the Participant from his principal
                                           residence or foreclosure on the
                                           mortgage of the Participant's
                                           principal residence.





                                     II - 6
<PAGE>   12
                 B.       Necessity of Hardship Distribution

                          A Participant may establish that the hardship
                          distribution is necessary to satisfy his immediate
                          and heavy financial need in one of two ways.  Under
                          no circumstances will a distribution be considered
                          necessary to satisfy an immediate and heavy financial
                          need if it is in excess of that need.

                          1.      Facts and Circumstances Distribution
                                  Requirements

                                  A Participant may demonstrate by all relevant
                                  facts and circumstances that the distribution
                                  is necessary to satisfy the hardship need.
                                  Under this facts and circumstances option, a
                                  Participant must establish in a sworn and
                                  notarized statement that the immediate and
                                  heavy financial need cannot be relieved:

                                  a.       Through reimbursement or
                                           compensation by insurance or 
                                           otherwise;

                                  b.       By reasonable liquidation of the
                                           Participant's assets to the extent
                                           such liquidation would not itself
                                           cause an immediate and heavy
                                           financial need;

                                  c.       By cessation of Employee elective
                                           deferrals and Employee savings under
                                           the Thrift Plan; or

                                  d.       By other distributions or loans from
                                           any plans maintained within the Du
                                           Pont controlled group of companies
                                           or from plans maintained by any
                                           other employer or by borrowing from
                                           commercial sources on reasonable
                                           commercial terms.

                                  For purposes of the preceding paragraph,
                                  assets of the Participant include assets of
                                  the Participant's spouse and minor children
                                  reasonably available to the Participant.
                                  Property held for a Participant's child under
                                  any irrevocable trust or under the Uniform
                                  Gifts to Minors Act shall not, however, be
                                  treated as an available resource of the
                                  Participant.

                          2.      Deemed Distribution Requirements

                                  A Participant's request for a distribution to
                                  meet an immediate and heavy financial need
                                  may be deemed necessary to satisfy the need.
                                  Under this option, a Participant must
                                  establish in a sworn and notarized statement
                                  that:

                                  a.       The distribution is not in excess of
                                           the amount of the Participant's
                                           immediate and heavy financial need;
                                           and





                                     II - 7
<PAGE>   13
                                  b.       The Participant has obtained all
                                           distributions, other than hardship
                                           distributions, and all loans
                                           currently available under all plans
                                           maintained by the Du Pont controlled
                                           group of companies.

                                  If a Participant elects to have the
                                  establishment of "necessary to satisfy the
                                  immediate and heavy financial need" handled
                                  under the deemed standard set forth in
                                  paragraph B.2. Above, the following
                                  consequences shall, in all cases, apply:

                                        (1)       the Participant will be
                                                  prohibited from making any
                                                  Employee elective deferrals
                                                  and Employee Contributions
                                                  under the Thrift Plan and all
                                                  other plans, with the
                                                  exception of health and
                                                  welfare benefit plans,
                                                  maintained by the Du Pont
                                                  controlled group of companies
                                                  for a period of twelve (12)
                                                  months after receipt of the
                                                  hardship distribution; and

                                        (2)       the Participant will be
                                                  prohibited from making
                                                  elective deferrals under the
                                                  Thrift Plan and all other
                                                  plans maintained by the Du
                                                  Pont controlled group of
                                                  companies for the
                                                  Participant's taxable year
                                                  immediately following the
                                                  year of the hardship
                                                  distribution in excess of the
                                                  applicable limit under
                                                  Section 402(g) of the Code
                                                  for such next taxable year
                                                  less the amount of such
                                                  Participant's elective
                                                  deferrals for the taxable
                                                  year of the hardship
                                                  distribution.

                 C.       Withdrawable Amount

                          The amount which may be withdrawn cannot exceed the
                          total of the Participant's contributions to his
                          Before Tax Account (and income allocable thereto
                          credited to a Participant's Before-Tax Account as of
                          December 31, 1988) nor the amount necessary to
                          satisfy the immediate and heavy financial need
                          created by the hardship.  At the request of the
                          Participant, the amount of an immediate and heavy
                          financial need may include any amounts necessary to
                          pay any federal income taxes or penalties reasonably
                          anticipated to result from the distribution.

         X.      "Highly Compensated" refers to highly compensated active
                 Employees and highly compensated former Employees, as defined
                 herein.

                 1.       A highly compensated active Employee includes any
                          Employee who performs service for the Corporate
                          Employer during the determination year





                                     II - 8
<PAGE>   14
                          and who, during the look-back year:  (i) received
                          compensation from the Corporate Employer in excess of
                          $80,000 (as adjusted pursuant to section 415(d) of
                          the Internal Revenue Code) or (ii) who was a 5% owner
                          at any time during the determination year or look
                          back year.

                 2.       For the purpose of determining who is a Highly
                          Compensated Employee, the determination year shall be
                          the Plan Year.  The look-back year shall be the
                          12-month period immediately preceding the
                          determination year.

                 3.       If an Employee is, during a determination year or
                          look-back year, a family member of either a 5 percent
                          owner who is an active or former Employee or a Highly
                          Compensated Employee who is one of the ten most
                          Highly Compensated Employees ranked on the basis of
                          compensation paid by the Corporate Employer during
                          such year, then the family member and the 5 percent
                          owner or top-ten Highly Compensated Employee shall be
                          aggregated.  In such case, the family member and 5
                          percent owner or top-ten Highly Compensated Employee
                          shall be treated as a single Employee receiving
                          compensation and plan contributions or benefits equal
                          to the sum of such compensation and contributions or
                          benefits of the family member and 5 percent owner or
                          top-ten Highly Compensated Employee.  For purposes of
                          this section, family member includes the spouse,
                          lineal ascendants and descendants of the Employee or
                          former Employee and the spouses of such lineal
                          ascendants and descendants.

                 4.       The determination of who is a Highly Compensated
                          Employee, including the determinations of the number
                          and identity of Employees in the top-paid group, the
                          top 100 Employees, the number of Employees treated as
                          officers and the compensation that is considered,
                          will be made in accordance with section 414(q) of the
                          Internal Revenue Code and the regulations thereunder.

                 5.       A highly compensated former Employee includes any
                          Employee who separated from service (or was deemed to
                          have separated) prior to the determination year,
                          performs no service for the Corporate Employer during
                          the determination year, and was a 5 percent owner of
                          the Corporate Employer at any time during the year or
                          received compensation in excess of $50,000 during the
                          year for either the separation year or any
                          determination year ending on or after the Employee's
                          55th birthday.

         Y.      "Hour(s) of Service" shall mean each hour for which an
                 Employee is compensated or entitled to compensation for the
                 performance of duties and includes each such hour for which
                 back pay, irrespective of mitigation of damages, has been
                 awarded or agreed to by Conoco.  An hour of service also
                 includes each hour for which an Employee is compensated or
                 entitled to compensation on account of a period of time during
                 which no duties are performed (irrespective of whether the
                 employment relationship has terminated) due to vacation,
                 holiday, illness, incapacity (including





                                     II - 9
<PAGE>   15
                 disability), jury duty, military duty or Conoco approved leave
                 of absence as well as hours of time required to be taken into
                 account by reason of Sections 414(b) and 414(c) of the Code.
                 Hours shall be credited to the computation period during which
                 the duties are performed or to which the payment relates and,
                 in the case of a period where no duties are performed, shall
                 be credited on the basis of the number of regularly scheduled
                 working hours during the period.  All hours shall be
                 calculated and credited in conformance with Sections
                 2530.200B-2(b) and (c) of Department of Labor regulations,
                 which are incorporated herein by reference.  For purposes of
                 crediting Hours of Service for vesting and for eligibility to
                 participate in the Plan, the term "Employee" shall have the
                 meaning stated in Article II.R. Except that the term "Conoco"
                 shall mean Conoco Inc., a Delaware corporation, and/or any
                 Affiliated Company regardless of whether said company
                 participates in the Plan, and the term "Employee" shall
                 include persons who would come within the definition of
                 "Employee" but for the fact that they are in a class of
                 employees excluded from participation in the plan.

         Z.      "Incapacity" shall mean the condition of a Participant's
                 health whereby he is unable to perform his job function as a
                 Retail Employee, as determined by the Benefit Board.

         AA.     "Investment Direction" shall mean an instruction by a
                 Participant to the Trustee to invest future deposits,
                 contributions and income pursuant to the terms of the Plan.

         BB.     "Investment Manager" shall mean an investment advisor
                 registered under the Investment Advisors Act of 1940, a bank
                 (other than the Trustee) as defined in that Act, or an
                 insurance company qualified to perform investment management
                 services which shall be designated or appointed as provided in
                 Article XIV.A.4.

         CC.     "Limitation on Annual Additions" shall mean the limitation on
                 contributions to a Participant's Employee Account as provided
                 in Article VI.

         DD.     The masculine pronoun shall mean the feminine whenever
                 appropriate.

         EE.     "Member" shall mean any person for whom the Trustee holds an
                 Employee Account, including a Participant with a zero balance
                 in his Regular Account due to a withdrawal pursuant to Article
                 X.C.1 who has elected to resume making Basic Deposits
                 immediately upon the completion of the suspension imposed by
                 Article X.C.1.b.

         FF.     "Non-spouse Beneficiary Member" shall mean any person who is
                 designated a beneficiary in accordance with Article XII. Who
                 is not a Spouse Beneficiary Member as defined in Article II.
                 QQ. and for whom the Trustee holds an Employee Account.





                                    II - 10
<PAGE>   16
         GG.     "One-Year Break-in-Service" shall mean any 12 consecutive
                 month period commencing upon an:

                 1.       Employment Date, or anniversary thereof, or

                 2.       Reemployment Date, or anniversary thereof,

                 During which an Employee does not complete 500 Hours of
                 Service.

                 Notwithstanding anything in this Plan to the contrary, for
                 absences beginning after December 31, 1984, and upon
                 presentation of proof satisfactory to the Benefit Board, an
                 Employee who is absent from work for reasons of the
                 individual's pregnancy, birth or adoption of a child, or for
                 purposes of caring for the child immediately following its
                 birth or adoption, will be deemed to have completed up to a
                 maximum of 501 hours of service during the period of 12
                 consecutive months commencing on the individual's most recent
                 Employment Date, Reemployment Date, or anniversary thereof
                 (whichever is applicable), commencing on the first date of
                 such absence, unless such Employee has already earned more
                 than 500 hours of service during such period of employment,
                 then such Employee shall receive credit for up to a maximum of
                 501 Hours of Service in the subsequent 12-consecutive-month
                 period for the purpose of preventing a One-Year
                 Break-in-Service.

                 Notwithstanding any provision of this Plan to the contrary,
                 contributions, benefits and service credit with respect to
                 qualified military service shall be provided in accordance
                 with section 414(u) of the Code.

         HH.     "Participant" shall mean an Employee who is a Retail Employee
                 and who is eligible for and has commenced participation in
                 this Plan in accordance with Article III. of this Plan.

         II.     "Plan" or "Retail Thrift Plan" shall mean this Thrift Plan for
                 Retail Employees of Conoco Inc.

         JJ.     "Plan Year" shall mean a twelve-month period commencing on
                 January 1 and ending on December 31.

         KK.     "Projected Annual Benefit" shall mean the benefits, which are
                 projected to be paid annually under all Defined Benefit Plans
                 of the Corporate Employer to an Employee payable as a straight
                 life annuity commencing at Normal Retirement Date.  Such
                 projection shall be based on the assumptions that:

                 1.       The Employee's compensation for all future years will
                          equal his Compensation for the year of computation,





                                    II - 11
<PAGE>   17
                 2.       The Employee's future participation in the Defined
                          Benefit Plans of the Corporate Employer will continue
                          uninterrupted until he has reached his Normal
                          Retirement Date and that he will earn a full year of
                          Creditable Service for each full year he participates
                          in the Defined Benefit Plans of the Corporate
                          Employer during that period, and

                 3.       All other relevant factors considered in computing
                          the benefits, such as provisions of the Defined
                          Benefit Plans of the Corporate Employer and social
                          security benefit levels, will remain constant with
                          the year of computation.

         LL.     "QDRO Member" shall mean an individual for whom the Trustee
                 holds an Employee Account pursuant to a Qualified Domestic
                 Relations Order.

         MM.     "Reemployment Date" shall mean the date following five
                 One-Year Breaks in Service on which a previously employed
                 person is reemployed and completes an Hour of Service.

         NN.     "Retail Employee" shall mean an Employee associated with the
                 Company's retail business.  An Employee's status as a Retail
                 Employee shall be determined by reference to a numeric and/or
                 alpha code maintained by the Company.

         OO.     "Retired Member" shall mean a former Participant who has (i)
                 taken normal, early or incapacity retirement under the
                 Retirement Plan (ii) or who has completed 10 years of service
                 and attained age 50 prior to his separation from service, and
                 for whom the Trustee holds an Employee Account.

         PP.     "Retirement Plan" shall mean The Retirement Plan of Conoco
                 Inc., which became effective July 1, 1947, as from time to
                 time amended, or the Employees' Retirement Plan of Continental
                 Carbon Company, which became effective July 1, 1945, as from
                 time to time amended, or the Kayo Pension Plan of Kayo Oil
                 Company which became effective April 26, 1954, as from time to
                 time amended.

         QQ.     "Rollover Member" shall mean an Employee, who is not a
                 Participant from whom the Trustee has accepted a rollover or
                 trust-to-trust transfer of assets from a qualified plan or an
                 individual retirement account in accordance with the
                 provisions of Article XXIII. Of this Plan.

         RR.     "Spouse Beneficiary Member" shall mean the spouse of a
                 Participant or Retired Member at the time of such
                 Participant's or Retired Member's death, who, in accordance
                 with Article XII.A. is the designated beneficiary of such
                 Participant or a Retired Member and for whom the Trustee holds
                 an Employee Account.

         SS.     "Supplemental Deposits" shall mean all deposits to a Member's
                 Employee Account in excess of Basic Deposits and Company
                 Contributions, including all assets





                                    II - 12
<PAGE>   18
                 transferred to this Plan in a trust-to-trust transfer from the
                 Thrift Plan for Employees of Conoco Inc.  that were defined as
                 Supplemental Deposits under the terms of the Thrift Plan for
                 Employees of Conoco Inc.  Supplemental Deposits may not exceed
                 the sum of:

                 1.       12 percent of his compensation earned prior to
                          January 1, 1976, for all years since he became a
                          Participant in the Plan;

                 2.       16 percent of his compensation earned after December
                          31, 1975, for all years since he became a Participant
                          in the Plan; and

                 3        19 percent of his compensation earned after December
                          31, 1996, for all years since he became a Participant
                          in the Plan; less

                 4.       The amount of Basic Deposits during such period which
                          have not been withdrawn from his Employee Account.

                 Only a Participant or a Transferred Member may make
                 Supplemental Deposits.

         TT.     "Terminated Member" shall mean a former Participant, who has
                 terminated his employment with Conoco at a time when he was
                 not eligible for normal, early or incapacity retirement under
                 the Retirement Plan, for whom the Trustee holds an Employee
                 Account, except that the term "Terminated Member" shall not
                 include a former Participant who terminated his employment
                 with Conoco after completing ten years of service and
                 attaining age 50.

         UU.     "Thrift Plan" shall mean the Thrift Plan for Employees of
                 Conoco Inc.

         VV.     "Transferred Member" shall mean a former Participant, who has
                 been transferred from Conoco, at the request or with the
                 consent of Conoco, to a nonparticipating Affiliated Company or
                 who has remained an Employee of Conoco, but who has ceased to
                 be a Retail Employee and who has left his Employee Account in
                 the Plan.

         WW.     "Trustee" shall mean the Trustee under the Plan hereinafter
                 named in Article XIV.A. Or any successor to said Trustee.

         XX.     "Vesting (vested)" shall mean the nonforfeitable right of a
                 Participant in the Plan to his total Regular Account, which
                 shall be acquired only on the earlier of:

                 1.       Five years of participation since the most recent
                          date of enrollment in the Plan or Thrift Plan for
                          Employees of Conoco Inc., a year of participation
                          being defined as:

                          a.      On or after January 1, 1976, but prior to
                                  October 1, 1988, 12 consecutive months of
                                  Basic Deposits; and





                                    II - 13
<PAGE>   19
                          b.      After September 30, 1988, 12 consecutive
                                  months during which a non-vested Participant
                                  maintains a positive account balance or makes
                                  at least one monthly contribution to this
                                  Plan or the Thrift Plan, except that the
                                  fifth year of participation under Article
                                  II.VV.1.b. shall be deemed a year of
                                  participation upon the first day of the fifth
                                  month of the 12 month period; or

                 2.       On or after January 1, 1976, but before October 1,
                          1988, a total of ten cumulative years of service or,
                          on or after October 1, 1988, a total of five
                          cumulative years of service, including for any
                          Participant whose Employment Date is January 1, 1993,
                          or later, a total of five cumulative years of service
                          that includes four years of participation in the Plan
                          or the Thrift Plan for Employees of Conoco Inc. any
                          such year commencing upon an:

                          a.      Employment Date, and anniversary date
                                  thereof; or

                          b.      Reemployment Date, and anniversary date
                                  thereof,

                 during which an Employee completes 1,000 or more hours of
                 service, provided that any period before termination of
                 employment if there was also a complete withdrawal from the
                 Plan which occurred prior to January 1, 1976, shall not count
                 for vesting purposes, and further provided that service
                 subsequent to five consecutive One-Year Breaks-in-Service
                 shall not count toward vesting a Participant's Employee
                 Account which accumulated prior to such five One-Year
                 Breaks-in-Service, or

                 3.       Attaining the age of 65, which is the Normal
                          Retirement Age under this Plan.

                 A Member shall be vested in his Before-Tax Account and in that
                 portion of his Regular Account derived from his Employee
                 Contributions at all times.  The portion of a Member's Regular
                 Account derived from his Employee contributions is his Basic
                 Deposits and Supplemental Deposits and all income, expenses,
                 gains and losses attributable thereto.

                 If a Member is vested when he ceases to be an Employee, he
                 shall be vested upon becoming an Employee again thereafter.
                 If a Member is not vested when he ceases to be an Employee,
                 and he becomes an Employee again thereafter, his prebreak
                 service shall be disregarded in determining the vesting of his
                 post-break accrued benefit only if the number of consecutive
                 One-Year Breaks in Service equals or exceeds the greater of
                 five or the aggregate number of the Member's years of service
                 prior to the break in service.





                                    II - 14
<PAGE>   20
         YY.     "Year" shall mean the twelve month period commencing January 1
                 and ending the following December 31.





                                    II - 15
<PAGE>   21
III.     ELIGIBILITY AND PARTICIPATION

         A.      Eligibility Requirements

                 Except as hereinafter otherwise provided, eligibility for
                 participation in the Plan shall be open to:

                 1.       any full time, regular Retail Employee and

                 2.       any Retail Employee who has completed a period of 12
                          consecutive months commencing on the Employee's
                          Employment or Re-Employment Date, whichever is
                          applicable, or a succeeding anniversary of such date,
                          during which he completes 1,000 or more Hours of
                          Service; and,

                 3.       any Retail Employee, including a Member who is
                          rehired and again becomes a Retail Employee, who
                          previously met the requirements of either paragraph 1
                          of this Article III.A.

                 For purposes of this Article III.A. only, on and after January
                 1, 1993, a Participant will be treated as having completed 190
                 hours of service for each month in which he completes at least
                 one hour of service.

         B.      Commencement of Participation

                 1.(a)    A Retail Employee may commence his participation on
                          the first day of the calendar month following the
                          month in which he becomes eligible, provided he files
                          with the Benefit Board or its delegee a notice of his
                          election to become a Participant of the Plan, such
                          notice to be in the manner prescribed by the Benefit
                          Board, or in the event an eligible Retail Employee
                          does not elect to participate when first eligible, he
                          may thereafter commence participation as of the first
                          day of the calendar month following the date he files
                          with the Benefit Board or its delegee a notice of his
                          election to become a Participant in the Plan,
                          provided, however, that no Retail Employee who is on
                          a Conoco approved leave of absence or is otherwise
                          absent from work on the date he becomes eligible may
                          become a Participant in the Plan until the day of his
                          return from such absence.  Commencement of
                          participation in the Plan by an eligible Retail
                          Employee shall be accomplished by his election to
                          make deposits as hereinafter provided.

                 (b)      A Retail Employee who does not elect to become a
                          Participant pursuant to Article III.B.1.(a) shall
                          become a Participant for the purpose of being
                          eligible to receive Company Contributions pursuant to
                          Article V.A.2 if he is a Retail Employee on the last
                          business day of February or the last business day of
                          August.





                                    III - 1
<PAGE>   22
         C.      Participation in the Plan by an Employee shall be voluntary,
                 however notwithstanding the effective date of participation
                 set forth in Article III.B.1, a Retail Employee who has met
                 the eligibility requirements of Article III.A., but who has
                 not elected to commence participation pursuant to Article
                 III.B.1, shall receive an Employer Contribution described in
                 Article V.A.2 on April 1 and October 1, respectively, of each
                 year that he is a Retail Employee on the last day of February
                 and the last day of August, respectively, of such year.

         D.      Each Retail Employee at the time of becoming a Participant in
                 the Plan or within a reasonable period thereafter shall be
                 given a copy of the Summary Plan Description, describing the
                 Plan, as effective at that time.

         E.      Transfers to Conoco

                 1.       An employee of a nonparticipating Affiliated Company
                          or of a corporation that has adopted a profit sharing
                          plan administered by a nonparticipating Affiliated
                          Company, who is transferred at the request of such
                          Affiliated Company or corporation and Conoco to the
                          employ of Conoco, may participate in this Plan
                          provided such Employee has satisfied the requirement
                          of Article III. A.2., 3., or 4.  The years of
                          participation by an Employee in the profit sharing
                          plan of such nonparticipating Affiliated Company or
                          corporation, if any, shall be included in determining
                          an Employee's years of participation in this Plan.
                          The years of service of an employee in a
                          nonparticipating Affiliated Company or corporation
                          profit sharing plan which would have been counted as
                          years of service under this Plan had the Employee
                          been a member of this Plan, shall be included in
                          determining the Employee's years of service under
                          this Plan.

                 2.       An Employee who is or has been transferred to Conoco
                          from the Monsanto Company pursuant to a certain
                          agreement between Conoco Inc. and the Monsanto
                          Company (The "Monsanto Agreement"), dated October 16,
                          1981, shall have specified periods of employment with
                          the Monsanto Company included in determining such
                          Employee's years of participation and years of
                          service in the Plan.  The applicable periods of
                          employment for individual Employees are specified in
                          schedules contained in Exhibit GG, as amended and
                          updated, of the Monsanto Agreement, as "Years of
                          Service (Vesting)."

                 3.       Any Employee, who becomes a Participant in the Plan
                          and who was a Participant in the Thrift Plan, or is
                          or has been transferred to Conoco from an Affiliated
                          Company or a corporation which has adopted a profit
                          sharing plan administered by an Affiliated Company
                          and has an Employee Account in the profit-sharing
                          plan of said Affiliated Company or corporation, may
                          request the Trustee, in the manner prescribed by the
                          Benefit Board, to accept the transfer of his entire
                          Employee Account, if any, from such other





                                    III - 2
<PAGE>   23
                          plan into his Employee Account in this Plan.  Any
                          transfer of an Employee Account to this Plan must be
                          requested prior to the Participant's subsequent
                          transfer of employment from Conoco.  The Benefit
                          Board shall determine whether the transfer of an
                          Employee Account to this Plan shall be in cash or in
                          kind on the basis of uniform rules applicable to all
                          Participants on the same basis.  The amount in
                          Employee Accounts so transferred, shall be
                          categorized as being in a Regular or  Before Tax
                          Account as defined in this Plan and the amounts
                          within such Employee Accounts shall be categorized as
                          Basic Deposits, Supplemental Deposits, Company
                          Contributions, and Earnings.  Basic Deposits
                          transferred to an Employee Account from other plans
                          shall not be entitled to matching Company
                          Contributions.

                 4.       For the purpose of a suspension due to a withdrawal
                          under this Plan, a withdrawal by a Participant of any
                          part of an Employee Account from a profit sharing
                          plan of an Affiliated Company or from the plan of a
                          corporation that has adopted a profit sharing plan
                          administered by an Affiliated Company or from the
                          Thrift Plan shall have the same effect as if the
                          Participant had made a withdrawal from this Plan.

         F.      Termination of Participation

                 1.       A Participant shall cease being a Participant in this
                          Plan at any time that he ceases being an Employee or
                          at any time he remains an Employee, but ceases to be
                          a Retail Employee.





                                    III - 3
<PAGE>   24
IV.      EMPLOYEE PARTICIPATION 

         A.      Participation by Payroll Deduction

                 To participate in the Plan, a Retail Employee shall designate
                 as a payroll deduction a percent of his monthly Compensation,
                 in 1 percent increments, to be deposited in his Employee
                 Account.  The first 6 percent of the amount so designated will
                 be deemed to be Basic Deposits, unless such Participant has a
                 suspension of Basic Deposits.  The Participant may elect to
                 have up to 19 percent of his monthly Compensation, but not
                 more than $7,000 per year deferred pursuant to a cash or
                 deferred arrangement under Section 401(k) of the Code (the
                 $7,000 shall be adjusted to reflect increases in the cost of
                 living in accordance with Section 415(d) of the Code).  The
                 amount so designated will be deposited by Conoco to the
                 Participant's Before Tax Account.  Deposits in excess of that
                 designated to the  Before Tax Account shall be deposited to a
                 Participant's Regular Account.  The total amount which may be
                 designated for deposit to a Participant's Employee Account
                 shall be in accordance with Article II.RR.

         B.      Change in Participation

                 The payroll deduction deposit percentage designated by the
                 Participant shall continue in effect, notwithstanding any
                 change in his compensation, until he shall change that
                 percentage.  A Participant may change such percentage at any
                 time to be effective the first of the next succeeding calendar
                 month.  Such changes shall be by direction to the record
                 keeper designated by Conoco in the form prescribed by the
                 Benefit Board.

         C.      Change in Participation for Highly Compensated Participants

                 1.       The Benefit Board shall determine at the beginning of
                          each month whether the Before Tax and Regular Account
                          contributions elected by Highly Compensated
                          Participants ("elected percentage") will, based on
                          projections to the end of the Plan Year, cause the
                          plan not to comply with the limitations on
                          contributions imposed by sections 401(k) and 401(m)
                          of the Code.  Such projections will be made by
                          assuming constant future compensation and constant
                          future elected contribution percentages.  If the
                          projections indicate that adjustments are necessary
                          to avoid exceeding the limitations, the Benefit Board
                          shall take the following actions.

                          a.      The Benefit Board will determine the maximum
                                  percentages of Before Tax and Regular Account
                                  contributions respectively that can be made
                                  by Highly Compensated Participants for the
                                  following month without causing the Plan, on
                                  a projected basis, to exceed such limitations
                                  ("Allowable Percentages").  Reductions in the
                                  Allowable Percentages, if any, determined for
                                  this purpose will be made in one





                                     IV - 1
<PAGE>   25
                                  percent increments and will be applied
                                  uniformly to all Highly Compensated
                                  Participants.

                          b.      The Benefit Board will reduce the percentages
                                  of Before Tax and Regular Account
                                  contributions of each Highly Compensated
                                  Participant to the Allowable Percentages in
                                  accordance with the following rules:

                                  (1)      If the elected percentage designated
                                           by the Highly Compensated
                                           Participant for the Before Tax
                                           Account exceeds the Allowable
                                           Percentage for Before Tax
                                           contributions, and if the
                                           Participant so elects, the Benefit
                                           Board will change the elected
                                           percentage in excess of that
                                           allowable to a Regular Account
                                           contribution or, if the Participant
                                           does not so elect, pay the excess to
                                           him.

                                  (2)      If the elected percentage designated
                                           by the Highly Compensated
                                           Participant for the Regular Account
                                           exceeds the Allowable Percentage for
                                           Regular Account contributions and if
                                           the Participant has so elected, the
                                           Benefit Board will change the
                                           elected percentage in excess of that
                                           allowable to a Before Tax Account
                                           contribution, or if the Participant
                                           does not so elect, pay the excess to
                                           him.

                                  (3)      To the extent a Before Tax
                                           contribution election cannot be
                                           changed to a Regular Account
                                           contribution or vice versa without
                                           causing a projected violation of the
                                           limitations on contributions imposed
                                           by sections 401(k) and 401(m) of the
                                           Code, the excess shall be paid to
                                           the Participant.

                 2.       If it is determined after the close of a Plan Year
                          that participation by Highly Compensated Participants
                          has exceeded the discrimination standards of Code
                          sections 401(k) ("Excess Contributions") or 401(m)
                          ("Excess Aggregate Contributions"), the amount of the
                          Excess Contributions or the Excess Aggregate
                          Contributions shall be refunded to the Highly
                          Compensated Participants in accordance with the
                          following rules.

                          a.      Determination and distribution of the amount
                                  of Excess Contributions for a Highly
                                  Compensated Participant shall be made in the
                                  following manner.

                                  (i)      First, the actual deferral ratio
                                           ("ADR") of the Highly Compensated
                                           Participant with the highest ADR
                                           will be reduced to the extent
                                           necessary to satisfy the actual
                                           deferral percentage ("ADP") test or
                                           cause such ratio to equal the





                                     IV - 2
<PAGE>   26
                                           ADR of the Highly Compensated
                                           Participant with the next highest
                                           ratio.  Second, this process shall
                                           be repeated until the ADP test is
                                           satisfied.  (Such computation shall
                                           be used solely to determine the
                                           aggregate amount to be distributed
                                           under this Article IV.C.2, but not
                                           the amount to be distributed to any
                                           individual.)

                                  (ii)     The aggregate amount of reductions
                                           determined under paragraph (a)(i)
                                           above shall be distributed, first,
                                           to the Highly Compensated Employees
                                           with the highest dollar amounts of
                                           Elective Contributions, pro rata, in
                                           an amount equal to the lesser of (i)
                                           the total amount of excess
                                           contributions for the Plan Year
                                           determined under paragraph (c) above
                                           or (ii) the amount necessary to
                                           cause the amount of such Employees'
                                           Elective Contributions to equal the
                                           amount of the Elective Contributions
                                           of the Highly Compensated Employees
                                           with the next highest dollar amount
                                           of Elective Contributions.  This
                                           process is repeated until the
                                           aggregate amount distributed under
                                           this paragraph (a)(ii) equals the
                                           amount of excess contributions
                                           determined under (a)(i) above.
                                           Income on excess contributions shall
                                           be distributed in accordance with
                                           applicable regulations.

                          b.      Determination and distribution of the amount
                                  of Excess Aggregate Contributions for a
                                  Highly Compensated Participant shall be
                                  determined in the same manner as described in
                                  paragraph a. above ("Leveling") but
                                  substituting "actual contribution ratio"
                                  ("ACR") for "actual deferral ratio" and
                                  substituting "actual contribution percentage
                                  (ACP) test" for "actual deferral percentage
                                  (ADP) test" and "ACP" for "ADP."

                          c.      If a Highly Compensated Participant's ADR or
                                  actual contribution ratio was determined
                                  under the family aggregation rules, the
                                  Highly Compensated Participant's ADR or
                                  actual contribution ratio is to be determined
                                  using the same Leveling method described in
                                  paragraphs a. and b.  The resulting Excess
                                  Aggregate Contributions are allocated among
                                  the family members in proportion to the
                                  employee and matching contributions of each
                                  family member that is combined to determine
                                  the actual contribution ratio, and the
                                  resulting Excess Contributions are allocated
                                  among the family members in proportion to the
                                  contributions of each family member that have
                                  been combined.





                                     IV - 3
<PAGE>   27
                          d.      The amount of Excess Contributions to be
                                  distributed shall be reduced by deferrals in
                                  excess of Code section 402(g) limits ("Excess
                                  Deferrals") previously distributed for the
                                  taxable year ending in the same Plan Year,
                                  and Excess Deferrals to be distributed for a
                                  taxable year will be reduced by Excess
                                  Contributions previously distributed for the
                                  plan beginning in such taxable year.

                          e.      Distribution (or forfeiture, if applicable)
                                  of Excess Aggregate Contributions or of
                                  Excess Contributions will include the income
                                  allocable thereto.  The income allocable to
                                  the Excess Aggregate Contributions or Excess
                                  Contributions includes income for the Plan
                                  Year for which the Excess Aggregate
                                  Contributions or Excess Contributions were
                                  made but does not include income for the
                                  period between the end of the Plan Year and
                                  the date of distribution (or forfeiture).

                          f.      If a distribution of Excess Aggregate
                                  Contributions or Excess Contributions results
                                  in a distribution of Basic Deposits, the
                                  matching Company Contributions which relate
                                  to such Basic Deposits must be distributed or
                                  forfeited, as applicable.

                          g.      A distribution of Excess Aggregate
                                  Contributions or Excess Contributions shall
                                  be made within 22 months of the end of the
                                  Plan Year in which they were made.

                 3.       In lieu of a distribution of Excess Contributions as
                          described above in paragraph 2, a Highly Compensated
                          Participant may elect to have such Excess
                          Contributions recharacterized as Employee
                          Contributions in accordance with the following rules.

                          a.      The amount of Excess Aggregate Contributions
                                  for such Participant shall be determined only
                                  after first determining the Excess
                                  Contributions that are treated as employee
                                  contributions due to recharacterization.

                          b.      Recharacterized Excess Contributions remain
                                  subject to the nonforfeitability requirements
                                  and to the restrictions on distributions that
                                  apply to Before Tax contributions.

                          c.      The amount to be recharacterized is offset by
                                  any amounts previously distributed as Excess
                                  Deferrals.

                          d.      Recharacterization shall take place within 22
                                  months of the end of the Plan Year to which
                                  the recharacterization relates.
                                  Recharacterization will be deemed to occur on
                                  the date on which the





                                     IV - 4
<PAGE>   28
                                  last affected Highly Compensated Participant
                                  is notified of the recharacterization and the
                                  tax consequences of such recharacterization.

                 4.       If one or more Highly Compensated Employees is a
                          Participant in both the portion of this Plan subject
                          to the ACP test and that which is subject to the ADP
                          test, then the tests shall be applied in such a way
                          as to avoid multiple use of the alternative
                          limitation, in accordance with Treasury regulations
                          1.401(m)-2 and section 401(m)(9) of the Code.

                          If there is an impermissible multiple use of the
                          alternative limitation, the Benefit Board shall
                          reduce either the ACP, treating the reduction as an
                          excess aggregate contribution, or the ADP, treating
                          the reduction as an excess contribution.  Such
                          reduction shall be applied to all eligible Highly
                          Compensated Employees.

         D.      Participation by Direct Remittance

                 1.       In addition to payroll deduction, Basic and
                          Supplemental Deposits may be made to a Participant's
                          Regular Account in accordance with the provisions of
                          Articles IV.E., IX.A.3., X.B.2.d.(2) and X.C.1.c.
                          (relative to temporary Employees; employees on
                          military, governmental, or disability leave; and
                          nonvested redeposits).

                 2.       In the event a Participant is eligible to receive a
                          refund pursuant to Article IV.C.2., such Participant
                          may authorize that amounts, which were to be
                          received, shall be deposited in  his Regular Account.

                 3.       Supplemental Deposits to a Participant's Regular
                          Account may be made by cash payment direct to the
                          Trustee in accordance with regulations prescribed by
                          the Benefit Board.

         E.      Temporary Employees--Insufficient Earnings

                 Participants who are temporary Employees may make Basic and
                 Supplemental Deposits to their Regular Accounts by direct cash
                 payment to the Trustee if their earnings in the month of
                 deduction are not sufficient to make such deposits by payroll
                 deduction.  Any month in which the Participant elects not to
                 make such deposit will be considered a month of voluntary
                 suspension in accordance with Article IX.B.





                                     IV - 5
<PAGE>   29
         F.      Transfer of Funds to Trustee

                 The amount of payroll deductions and cash payments so made
                 shall be transferred monthly by Conoco to the Trustee, and the
                 Trustee shall hold the same for the respective Participants'
                 Employee Accounts, subject to the provisions of the Plan.

         G.      Internal Revenue Code Limitations

                 Notwithstanding anything else to the contrary in this Article
                 IV. (Employee Participation), or in Article V. (Conoco
                 Contributions), Article VI. (Limitation on Annual Additions),
                 or elsewhere in the Plan, contributions to this Plan and
                 benefits under this Plan shall be limited as required by
                 Sections 415, 401(k), and 401(m) of the  Code and final
                 Treasury regulations thereunder.

                 No Participant shall be permitted to have Elective Deferrals
                 made under this Plan, or any other qualified plan maintained
                 by the Corporate Employer, during any taxable year, in excess
                 of the dollar limitation contained in section 402(g) of the
                 Code in effect at the beginning of such taxable year.

                 A Participant may assign to this Plan any Excess Elective
                 Deferrals made during a taxable year of the Participant by
                 notifying the Plan Administrator on or before the date
                 specified by the Plan Administrator of the amount of the
                 Excess Elective Deferrals to be assigned to the Plan.  A
                 Participant is deemed to notify the Plan Administrator of any
                 Excess Elective Deferrals that arise by taking into account
                 only those Elective Deferrals made to this Plan.

                 Notwithstanding any other provision of the Plan, Excess
                 Elective Deferrals, plus any income and minus any loss
                 allocable thereto, shall be distributed no later than April 15
                 to any Participant to whose account Excess Elective Deferrals
                 were assigned for the preceding year and who claims Excess
                 Elective Deferrals for such taxable year.

                 "Elective Deferrals" shall mean any employer contributions
                 made to the Plan at the election of the Participant, in lieu
                 of cash compensation, and shall include contributions made
                 pursuant to a salary reduction agreement or other deferral
                 mechanism.  With respect to any taxable year, a Participant's
                 Elective Deferral is the sum of all employer contributions
                 made on behalf of such Participant pursuant to an election to
                 defer under any qualified CODA as described in section 401(k)
                 of the Code, any simplified employee pension cash or deferred
                 arrangement as described in section 402(h)(1)(B), any eligible
                 deferred compensation plan under section 457, any plan as
                 described under section 501(c)(18), and any employer
                 contributions made  on the behalf of a Participant for the
                 purchase of an annuity contract under section 403(b) pursuant
                 to a salary reduction agreement.  Elective Deferrals shall not
                 include any deferrals properly distributed as excess annual
                 additions.





                                     IV - 6
<PAGE>   30
                 "Excess Elective Deferrals" shall mean those Elective
                 Deferrals that are includible in a Participant's gross income
                 under section 402(g) of the Code to the extent such
                 Participant's Elective Deferrals for a taxable year exceed the
                 dollar limitation under such Code section.  Excess Elective
                 Deferrals shall be treated as annual additions under the Plan,
                 unless such amounts are distributed no later than the first
                 April 15 following the close of the Participant's taxable
                 year.

                 Determination of income or loss:  Excess Elective Deferrals
                 shall be adjusted for any income or loss up to the date of
                 distribution.

         H.      Participation by Company Contribution

                 An employee who is eligible to participate in this Plan
                 pursuant to Article III.A. who does not elect to participate
                 pursuant to Article IV.A. shall have an Employee Account
                 established on his behalf upon satisfaction of the eligibility
                 requirements in Article III.A. and shall become a Participant
                 when the Company makes a contribution to his Employee Account
                 pursuant to Article V.A. (2).





                                     IV - 7
<PAGE>   31
 V.      CONOCO CONTRIBUTIONS

         A.      Amount of Company Contributions

                 1.       Conoco shall contribute out of its accumulated
                          earnings and profits to a Participant's Regular
                          Account an amount equal to 100 percent of each
                          Participant's Basic Deposits, except as hereinafter
                          provided in Article VI.  Such contributions shall be
                          paid to the Trustee at least monthly.

                 2.       Conoco shall contribute out of its accumulated
                          earnings and profits to a Participant's Regular
                          Account an amount equal to $75 dollars for each
                          Retail Employee on April 1 and October 1,
                          respectively, of each year for which an Employee is a
                          Retail Employee as of the last day of February and
                          the last day of August, respectively, of such year.
                          Such contributions shall be paid to the Trustee on
                          April 1 and October 1, or the first business day
                          thereafter, respectively.

         B.      Additional Conoco Contributions

                 This is a profit sharing plan.  Conoco may from time to time
                 voluntarily make additional contributions out of its
                 accumulated earnings and profits subject to the following
                 provisions, conditions, and limitations:

                 1.       No such additional contribution shall be made unless
                          the same is specifically authorized by the Board
                          within two months of the date on which such
                          additional contribution is to be made.

                 2.       No such additional contribution shall be applicable
                          to the employees of any Affiliated Company
                          participating in the Plan unless such applicability
                          to such employees is authorized by the board of
                          directors of such Affiliated Company.

                 3.       The aggregate amount of any such additional
                          contribution made in any one calendar year shall not
                          exceed 2 percent of the consolidated net income of
                          Conoco and its consolidated subsidiaries for the last
                          preceding calendar year.

                 4.       Each such additional contribution shall be paid to
                          the Trustee and shall thereupon be distributed by the
                          Trustee among the Employee Accounts of all Plan
                          Participants to whom such additional contribution is
                          applicable in proportion to the respective Basic
                          Deposits which such Participants deposited in their
                          Employee Accounts pursuant to the provisions of
                          Article IV.  during the six calendar months
                          immediately preceding the month in which such
                          additional contribution is authorized by the Board.





                                     V - 1
<PAGE>   32
         C.      Transfer of Funds to Trustee

                 The Trustee shall hold Conoco's contributions for Participants
                 in their respective Employee Accounts, subject to the
                 provisions of the Plan; and no part of those contributions
                 shall be recoverable by Conoco, nor shall they (except as
                 hereinafter provided in Articles VI.A.2., VIII.A.2.,
                 VIII.A.3., VIII.A.4., VIII.A.5., X.B.2.f., X.B.5., and
                 X.C.1.c(1)) be used for or diverted to any other purpose.
                 Notwithstanding the preceding sentence, nothing in this
                 Article V.C. shall prohibit or preclude the use of Plan Assets
                 from being used for the payment of the reasonable expenses of
                 administering the Plan, as provided in Article XIV.H.





                                     V - 2
<PAGE>   33
VI.      LIMITATION ON ANNUAL ADDITIONS

         A.      Anything to the contrary notwithstanding:

                 1.       The maximum Annual Additions deposited to a
                          Participant's Employee Account in any year either
                          solely under the Plan or under an aggregation of the
                          Plan with all other Defined Contribution Plans of the
                          Corporate Employer may not exceed the lesser of
                          $30,000 (or such greater amount as may be allowable
                          in accordance with regulations, rulings or other
                          official announcements issued by the Secretary of the
                          Treasury or his delegate) or 25% of the Employee's
                          Defined Compensation for the year; nor,

                 2.       When the Annual Additions are viewed in conjunction
                          with a Participant's interest in all other Defined
                          Benefit and Defined Contribution Plans of the
                          Corporate Employer, including any interest of the
                          Participant that has been assigned to an alternate
                          payee pursuant to a Qualified Domestic Relations
                          Order, the sum of the Defined Benefit Plan Fraction
                          and the Defined Contribution Plan Fraction for any
                          year shall not exceed 1.0. Sections 235(b)(3) and (4)
                          of the Tax Equity and Fiscal Responsibility Act of
                          1982 shall be applied when computing the limitation
                          under this Article VI.A.2.  If the limitation in
                          Article VI.A.1. would be exceeded but for the
                          language set out in this Article, the Annual
                          Additions deposited under the Plan must be reduced
                          and, or a Participant's Employee Deposits returned
                          and, Corporate Employer Contributions removed from
                          the Participant's Employee Account and applied to
                          reduce the subsequent contribution of Conoco under
                          the Plan, to the extent necessary, as determined by
                          the Benefit Board.  If the limitation in Article
                          VI.A.2. would be exceeded but for the language set
                          out in this Article, the benefits under the Defined
                          Benefit Plans of the Corporate Employer shall be
                          reduced to the extent necessary to avoid exceeding
                          the limitation.





                                     VI - 1
<PAGE>   34
VII.     INVESTMENT PROVISIONS

         A.      Investment Direction

                 A Participant in the Plan shall instruct the Trustee in the
                 form prescribed by the Benefit Board as to the Investment
                 Direction for future deposits, contributions and income to his
                 Employee Account, except that dividends on Du Pont stock
                 payable to a Participant's Employee Account on and after
                 January 1, 1993, shall be invested in Du Pont stock for the
                 Participant's Employee Account if, on the date the dividend is
                 payable into the Participant's Employee Account, any portion
                 of the Participant's Employee Account is invested in Du Pont
                 stock.

                 1.       Such direction shall be to invest in any one or more
                          of the Plan Investment Options pursuant to Article
                          VII. C., in multiples of 1 percent totaling 100
                          percent for the Participant's Regular Account and for
                          the Participant's Before Tax Account, separately.

                 2.       Each Investment Direction shall be deemed a
                          continuing direction unless changed by the
                          Participant.

                 3.       A Participant may change his Investment Direction in
                          the manner prescribed by the Benefit Board.

         B.      Fund Transfer(s)

                 Any Plan Member, except a Non-Spouse Beneficiary, may instruct
                 the Trustee in the manner prescribed by the Benefit Board to
                 sell, redeem, or liquidate any investments in his Employee
                 Account and to transfer the proceeds to another Investment
                 Option.  Such Fund Transfers shall specify the number of units
                 or shares of stock in an Investment Option Fund, as provided
                 for in Article VII.C, within the Member's Regular or Before
                 Tax Account that is to be transferred to another Investment
                 Option Fund within the same Account.  Such transfer shall be
                 made only in the Account from which the proceeds originated.
                 A Member may not transfer proceeds from his Regular Account to
                 his Before Tax Account or vice-versa.

         C.      Investment Option Funds

                 The Trustee shall provide for the following Investment Option
                 Funds for Plan Members.





                                    VII - 1
<PAGE>   35
                 1.       Option A: Employer Stock Fund

                          a.      DuPont Stock Fund

                                  The purchase of shares of Du Pont common
                                  stock.  Such purchases may be made in the
                                  open market or from Du Pont if it shall have
                                  made treasury or authorized but unissued
                                  shares available for such purchases, in which
                                  event the purchase price shall be the closing
                                  price of such stock as reported on the New
                                  York Stock Exchange--Composite Transactions
                                  on the last trading day preceding the date of
                                  such purchase from Du Pont.


                          b.      Conoco Stock Fund

                                  The purchase of shares of Class A Conoco
                                  common stock.  Such purchases may be made in
                                  the open market or from Conoco if it shall
                                  have made treasury or authorized but unissued
                                  shares available for such purchases, in which
                                  event the purchase price shall be the closing
                                  price of such stock as reported on the New
                                  York Stock Exchange--Composite Transactions
                                  on the last trading day preceding the date of
                                  such purchase price from Conoco.

                 2.       Option B: Stable Value Fund

                          The purchase of units of participation in the Stable
                          Value Fund.  The term "Stable Value" or "Stable Value
                          Fund" shall mean arrangements with one or more
                          entities, including but not limited to insurance
                          companies, banks, and other financial organizations
                          as may from time to time be designated by the Benefit
                          Board or, if not so designated, as selected by the
                          Trustee in its discretion, the objective of which is
                          to preserve principal and provide for a stable rate
                          of return.  Short-term obligations of the United
                          States Government, commercial paper or other
                          investments of a short-term nature may be purchased
                          and held pending the deposit of funds, as applicable
                          with such entities.  In addition, a portion of the
                          Stable Value Fund shall be invested in short term
                          funds to provide a cash buffer so as to provide
                          sufficient liquidity to accommodate daily trading
                          activity.  All deposits to the Stable Value Fund
                          shall be expressed as units of participation in the
                          Stable Value Fund, which shall consist of all
                          deposits to the Stable Value Fund and all interest
                          credited or accrued (less costs) to such deposits
                          pursuant to such arrangements.  No Member shall have
                          any ownership in any particular asset in the Stable
                          Value Fund.  The Stable Value Fund shall be operated
                          in accordance with the provisions established by the
                          Benefit Board, which shall be equally applicable to
                          all Members; provided, however, that the requirements
                          set forth in any Stable Value Fund agreement for use
                          under the Plan shall be obligatory and binding upon
                          all





                                    VII - 2
<PAGE>   36
                          concerned with the same force and effect as though
                          such requirements were set forth at length in and
                          constituted part of this Plan.

                 3.       Option C: Mutual Funds and Other Equity Investment
                          Vehicles

                          The purchase of shares in one or more mutual funds or
                          other equity investment vehicles contained in a
                          family of mutual funds or other equity investment
                          vehicles designated by the Trustee with the advice
                          and consent of the Benefit Board, as directed by
                          Members.   The Mutual Funds and Other Equity
                          Investment Vehicles designated pursuant to this
                          Article VII.C.3 shall be listed in Appendix A.

                 4.       Option D: Asset Allocation Funds

                          1.      The purchase of units of participation in a
                                  three way allocation fund consisting of a
                                  portfolio diversified among the stock, bond
                                  and cash sectors of the securities
                                  marketplace.  Assets invested pursuant to
                                  this fund shall be transferred among these
                                  sectors in a manner and to such extent as the
                                  Trustee or designated Investment Manager
                                  shall elect.

                          2.      The purchase of units in one or more asset
                                  allocation portfolios diversified among the
                                  Plan's Fixed Income Fund and one or more
                                  equity investment vehicles offered under
                                  Option C: Mutual Funds and other Equity
                                  Investment Vehicles.  The allocation among
                                  such portfolios will be according to a
                                  formula specified by the Plan Administrator
                                  and the allocation will be adjusted
                                  ("rebalanced") periodically according to that
                                  formula or any successor formula specified by
                                  the Plan Administrator.

                 5.       Option E: Loan Account Fund

                          The unpaid principal of a loan granted in accordance
                          with Article XI. of the Plan.  This option shall be
                          designated the Loan Account Fund.

         D.      Uninvested Funds

                 Any funds in the hands of the Trustee not invested pursuant to
                 Fund Transfers or Investment Directions of the Member as above
                 provided, shall be held by the Trustee in the Fixed Income
                 Fund.

         E.      Trustee Action

                 The Trustee will comply with Investment Directions and Fund
                 Transfers of a Member as soon as practicable after receipt
                 thereof.





                                    VII - 3
<PAGE>   37
                 In the event an Investment Option, or any mutual fund
                 designated under Option C. is discontinued under the Plan,
                 notice to such effect shall be given to all Members and such
                 Members shall be given the opportunity to issue a new
                 Investment Direction affecting future deposits and income
                 subject to such discontinued Option or fund and a Fund
                 Transfer directing the sale of units or shares in the
                 discontinued Option or fund and the transfer of such proceeds
                 to any other Option or fund provided pursuant to Article
                 VII.C.  Such notice shall also provide that the failure of a
                 Member to issue a new Investment Direction or a Fund Transfer
                 shall be deemed to be an Investment Direction or a Fund
                 Transfer specifying investment in an Option or fund as
                 specified in the notice.

                 If a Member fails to issue a new Investment Direction or a
                 Fund Transfer with respect to future deposits and income or
                 units or shares invested in or directed to be invested in a
                 discontinued Option or fund, the Trustee shall sell such units
                 or shares and invest the proceeds and any future deposits and
                 income as specified in the notice provided to all Members.

                 The Trustee may, in accordance with regulations to be
                 prescribed by the Benefit Board, for the purpose of reducing
                 brokerage commissions and other expenses, defer the execution
                 of instructions to purchase or sell securities pursuant to
                 Option A. until the Trustee has accumulated instructions to
                 purchase or sell the quantities prescribed in such
                 regulations.

                 The Trustee in its discretion, may limit the daily volume of
                 its purchases or sales of Du Pont stock to the extent that
                 such action is deemed by the Trustee to be in the best
                 interest of the Members from whom it has received instructions
                 for such purchases or sales.

         F.      Trustee--Maintenance of Plan Assets

                 All cash and securities in Employee Accounts shall, until
                 disposed of pursuant to the provisions of the Plan, be held in
                 the possession of the Trustee or its designated agent.
                 Transferable securities may be registered in the name of the
                 Trustee or in the name of its nominee.  Nontransferable
                 government bonds shall be issued in such name or names as the
                 Trustee may elect, subject to any applicable laws or
                 regulations at the time in effect with respect thereto.  In
                 the sole discretion of the Trustee, investments in a
                 particular security issue made at the instruction of more than
                 one Member may be represented by a single bond or a single
                 stock certificate, as the case may be.

                 1.       Shares of stock of Du Pont and shares of Conoco stock
                          included in the Employee Account of a Member as of
                          the record date shall be voted or caused to be voted
                          at meetings of the stockholders of the Company or any
                          adjournment thereof in accordance with written
                          instructions given by such Member to the Trustee in
                          such form as prescribed by the Benefit Board.  The
                          Trustee shall not have the voting rights with respect
                          to any shares of





                                    VII - 4
<PAGE>   38
                          stock of Du Pont held in trust pursuant to the terms
                          of the Plan for which voting instructions for a
                          particular stockholder's meeting are not received.

                 2.       In the event of any distribution to all stockholders
                          of Du Pont or Conoco of any rights to purchase any
                          securities, such rights pertaining to the shares of
                          stock held under the Plan shall be dealt with and
                          disposed of by the Trustee in accordance with the
                          following provisions, conditions, and limitations:

                          a.      The Trustee shall notify each Member whose
                                  Employee Account includes shares of Du Pont
                                  or Conoco stock to which the purchase rights
                                  pertain concerning the distribution of such
                                  rights.  Such notice shall specify a period
                                  of time (as prescribed by the Benefit Board)
                                  within which the  Member may elect that such
                                  rights pertaining to any share of stock held
                                  in his Employee Account should be allowed to
                                  expire by its own terms.

                          b.      If the Member elects that such purchase
                                  rights should be allowed to expire, he shall
                                  notify the Trustee to that effect within such
                                  period of time and in such form and manner
                                  and subject to such other regulations as the
                                  Benefit Board may prescribe.

                          c.      After the expiration of the period of time
                                  prescribed as aforesaid, the Trustee shall
                                  endeavor to sell all of the purchase rights
                                  with regard to which the said Trustee did not
                                  receive an instruction from the Member to
                                  which such rights were applicable.

                                  The total net proceeds realized from such
                                  sales shall be credited pro rata to the
                                  Employee Accounts of the Members entitled
                                  thereto (i.e., in proportion to the number of
                                  such purchase rights pertaining to the shares
                                  of Du Pont or Conoco stock held in respect of
                                  the Employee Accounts of such  Members but
                                  not including those shares in the Employee
                                  Accounts of Members who elected to allow the
                                  rights allocated to their Employee Accounts
                                  to expire).  The amounts so credited to the
                                  Employee Accounts of Members shall for all
                                  purposes of the Plan be treated as income.

                          d.      In no event may the Trustee exercise for the
                                  Employee Account of any Member any purchase
                                  rights pertaining to the shares of stock held
                                  under the Plan.

                 3.       The assets of the Fixed Income Fund and the Three-Way
                          Asset Allocation Fund under this Plan may be held by
                          the Trustee in trust in common with funds of the same
                          name under the Investment Plan for Salaried Employees
                          of Consol Inc. and the Sentinel Transportation
                          Company Thrift Plan. In such case, the Trustee shall
                          be under no duty to earmark or keep separate





                                    VII - 5
<PAGE>   39
                          the assets of such commingled funds and a
                          determination on the valuation date of the value of
                          such funds under this Plan shall be determined in
                          conjunction with the corresponding determinations
                          made under Options B. and D. of Article VII.C. of the
                          Investment Plan for Salaried Employees of Consol Inc.
                          and the Sentinel Transportation Company Thrift Plan
                          as though such funds under this Plan and the
                          corresponding funds under the Investment Plan for
                          Salaried Employees of Consol Inc. and the Sentinel
                          Transportation Company Thrift Plan were one fund for
                          this purpose.  The Trustee shall, however, maintain a
                          separate account reflecting the equitable share in
                          the assets of the Fixed Income Fund and the Three-Way
                          Asset Allocation Fund under this Plan and the
                          corresponding funds under the Investment Plan for
                          Salaried Employees of Consol Inc. and the Sentinel
                          Transportation Company Thrift Plan.  Conoco may, at
                          any time, direct the Trustee to segregate and
                          withdraw the equitable share in such assets of the
                          Fixed Income Fund and the Three-Way Asset Allocation
                          Fund of this Plan.  The Trustee's valuation of assets
                          for the purpose of such withdrawals shall be
                          conclusive.





                                    VII - 6
<PAGE>   40
VIII.    CREDITS AND CHARGES TO EMPLOYEE ACCOUNTS

         A.      Allocation of Income and Costs on Investments

                 1.       All interest, dividends, and other income received by
                          the Trustee and all gains or losses upon the sale or
                          redemption of investments in the Member's Regular or
                          Before Tax Account, as determined by the Trustee,
                          shall be credited or charged to such Member's
                          Employee Account.

                 2.       The share value of securities in a Member's Employee
                          Account purchased pursuant to Option A.  shall be
                          based on the closing price of such securities as
                          calculated and provided to the Trustee by the New
                          York Stock Exchange ("NYSE") at the end of each NYSE
                          business day.

                          The cost to a Member's Employee's Account of
                          securities purchased under Option A. shall be the
                          daily average weighted purchase price of all
                          securities purchased by the Trustee on the same day
                          at the direction of Members.  The proceeds credited
                          to a Member's Employee Account upon the sale or
                          redemption of such securities shall be based on the
                          daily average weighted sale price received by the
                          Trustee for all securities sold by Trustee on the
                          same day at the direction of Members.

                          Brokerage commissions, transfer taxes, and other
                          charges and expenses in connection with the purchase
                          or sale of securities shall be added to the cost of
                          such securities or deducted from the proceeds
                          thereof, as the case may be.  Taxes, if any, on any
                          assets held by the Trustee or income therefrom which
                          are payable by the Trustee shall be charged against
                          the Members' Employee Accounts as the Trustee shall
                          determine.

                 3.       The unit value of units of participation purchased
                          pursuant to Option B. shall be based on the accrued
                          value, which shall include principal value plus
                          accrued interest, of all investment vehicles within
                          the fund divided by the total outstanding units
                          within the Plan as of the close of the previous
                          business day.  The unit value of units of
                          participation shall include all costs and charges
                          used to establish the unit value of the units of
                          participation.  The cost to a Member's Employee
                          Account of units of participation purchased pursuant
                          to Option B. and the proceeds credited to a Member's
                          Employee Account upon the sale of units of
                          participation in Option B. shall be based on the unit
                          value as of the close of the previous business day.

                 4.       The share value of any mutual fund or equity
                          investment vehicle purchased under Option C. shall be
                          the Net Asset Value calculated by the offering
                          company, and shall be calculated once each day the
                          New York Stock Exchange is open for trading.  Such
                          Net Value shall include all costs and charges used by
                          the offering company to establish the Net Asset
                          Value.





                                    VIII - 1
<PAGE>   41
                          The share price of the Fidelity Megellan Fund
                          purchased pursuant to Option C. shall be the Net
                          Asset Value as determined by Fidelity Service Co. on
                          each New York Stock Exchange Business Day.  Such Net
                          Asset Value shall include all costs and charges used
                          by Fidelity Service Co. to establish the Net Asset
                          Value.

                 5.       The unit value of units purchased under Option D. 1.
                          shall be calculated by Barclay's Global Investors
                          each business day.  Such unit value shall include all
                          costs and charges used by Barclay's Global Investors
                          to establish the unit value, except that for the
                          period of time commencing on January 1, 1993 and
                          ending on April 30, 1993, the unit value shall not be
                          reduced by the management/administrative fee used to
                          calculate the unit value.

                          The unit value of units purchased under Option D.2
                          shall be calculated by Merrill Lynch each business
                          day.  Such unit value shall include all costs and
                          charges used by Merrill Lynch Asset Management to
                          establish that value.





                                    VIII - 2
<PAGE>   42
IX.      SUSPENSION OF DEPOSITS

         A.      Involuntary Suspension of Employee Contributions and Matching
                 Employer Contributions

                 If a Participant is absent from the performance of his duties
                 for Conoco, and, as a consequence of such absence, his
                 Compensation for any calendar month is sixty percent, or less,
                 of his normal Compensation for such month, all deposits to his
                 Employee Account of Employee Contributions and Matching
                 Employer Contributions with respect to such month shall be
                 automatically suspended; subject, however to the following
                 limitations and conditions:

                 1.       If a Participant is absent pursuant to a Company
                          approved leave of absence, the automatic suspension
                          of such deposits may continue only for the duration
                          of such leave of absence.  If the Participant is
                          absent for any other reason, the automatic suspension
                          of deposits may not continue without interruption for
                          longer than 12 months.

                 2.       If a Participant is absent pursuant to a Company
                          approved leave of absence, or because of his sickness
                          or other disability, the period of automatic
                          suspension of deposits shall be included in
                          determining the length of such Participant's years of
                          participation in the Plan.

                 3.       If a Participant is absent pursuant to
                          company-approved leave of absence under Conoco's
                          military leave policy or serving the government in a
                          nonmilitary capacity, or because of sickness or other
                          disability, then, in any such event, Company
                          Contributions made pursuant to V.A.2 shall not be
                          suspended, and he may elect, in the manner prescribed
                          by the Benefit Board, to continue to make deposits of
                          Employee Contributions to his Regular Account (and
                          thus avoid automatic suspension thereof).  A
                          Participant making such an election may not change
                          his rate of deposit during such absence.  In the
                          event of such election, the  Participant's deposits
                          may, in accordance with regulations prescribed by the
                          Benefit Board, either be deducted from any
                          Compensation or other regular payments which such
                          Participant may be entitled to receive from Conoco,
                          or may be paid currently in cash by the Participant
                          to the Trustee.  Failure of a Participant to make
                          such cash deposit on the date when it becomes payable
                          shall be treated as an election by him to permit his
                          deposits to be automatically suspended, as herein
                          above provided in this Article IX.A. from and after
                          the date of his last previous deposit of Employee
                          Contributions.





                                     IX - 1
<PAGE>   43
         B.      Voluntary Suspension of Employee Contributions and Matching
                 Employer Contributions

                 A Participant, by direction to the Benefit Board in the manner
                 prescribed by the Benefit Board, or by electing not to make a
                 direct cash payment in accordance with Article IV.D., may
                 voluntarily elect to suspend all monthly Basic and
                 Supplemental Deposits under the Plan, subject, however, to the
                 following limitations:

                 1.       A voluntary suspension of Employee Contributions by
                          direction or failure to elect or to make a direct
                          remittance will be applicable to all deposits to the
                          Plan of Employee Contributions and Matching Employer
                          Contributions;

                 2.       A voluntary suspension of Employee Contributions will
                          remain in effect until the Participant revokes such
                          election by making an election pursuant to Article
                          IV.B.

                 3.       The right of a Participant to make cash Supplemental
                          Deposits to his Regular Account shall not be affected
                          by a voluntary suspension;

                 4.       The nonreceipt of a direct remittance from a
                          temporary Employee, in accordance with Article IV.E.
                          within 30 days of the mailing of notification of such
                          right, will be deemed to be a voluntary suspension;

         C.      Company Contributions During Suspension

                 During the period or periods of automatic and/or voluntary
                 suspension of monthly deposits of Employee Contributions as
                 provided in Article IX.A. and B., Company Contributions
                 pursuant to Article V.A.1 to the Employee Account of such
                 Participant will be automatically and correspondingly
                 suspended.  Company Contributions not made during any such
                 period of suspension shall not be accumulated or carried
                 forward for later payment.  Company contributions to an
                 Employee Account pursuant to Article V.A.2 shall be made
                 during periods of suspension under this Article IX.





                                     IX - 2
<PAGE>   44
X.       WITHDRAWALS

         A.      Full Withdrawals--Retirement

                 1.       A Participant or Transferred Member shall be entitled
                          to his entire Employee Account in the event of a
                          normal, early, or incapacity retirement from the
                          Retirement Plan or separation from service with 10
                          years of service after attaining age 50.  At any time
                          prior to such retirement or separation from service
                          with 10 years of service after attaining age 50, a
                          Participant or Transferred Member may, by written
                          direction to the Trustee in the manner prescribed by
                          the Benefit Board, make an election to receive his
                          Employee Account pursuant to the options set forth in
                          Article X.

                 2.       Defer to Age 70 1/2

                          Any Plan Participant or Transferred Member who is
                          entitled to normal, early, or incapacity retirement
                          under the Retirement Plan or who separates from
                          service with 10 years of service after attaining age
                          50 may, prior to such retirement or separation from
                          service with 10 years of service after attaining age
                          50, by direction to the Trustee in the manner
                          prescribed by the Benefit Board, make an election to
                          defer the withdrawal of his Employee Account.  In the
                          event that a Participant or a Transferred Member
                          makes such an election:

                          a.      No further Basic Deposits pursuant to Article
                                  IV., Supplemental Deposits or contributions
                                  pursuant to Article V. shall be made to his
                                  Employee Account after the date of his
                                  retirement or separation from service;

                          b.      During the period of time following his
                                  retirement, such  Retired Member (or, in a
                                  proper case, his legal representative or
                                  designated beneficiary) shall be entitled to
                                  withdraw his entire Employee Account, under
                                  the same terms applicable to withdrawals
                                  pursuant to Article X.B., or make one or more
                                  partial withdrawals pursuant to terms of
                                  Article X.C; and

                          c.      Payments in the form of a Lifetime Periodic
                                  Payment calculated on the actuarial life of
                                  the Member will commence no later than April
                                  1 of the calendar year following the calendar
                                  year in which a Retired Member attains age 70
                                  1/2, if such Retired Member (or, in a proper
                                  case, his legal representative or designated
                                  beneficiary) has not withdrawn his entire
                                  Employee Account then held by the Trustee or
                                  made an election pursuant to Article X.A.3.
                                  as provided by Article X.A.2.d.





                                     X - 1
<PAGE>   45
                          d.      Prior to attaining age 70 1/2, such Retired
                                  Member may elect to receive his Employee
                                  Account pursuant to Article X.A.3.

                 3.       Periodic Payment Options

                          If a Retired Member receiving payments pursuant to
                          one of the options listed in paragraphs a., b., c.,
                          d. e. or f. below is reemployed in a temporary
                          position by Conoco, payments shall cease or continue
                          at the election of the rehired employee at the time
                          such Retired Member is rehired.  If payments cease,
                          the Retired Member, upon his subsequent separation
                          from service, may designate any form of distribution
                          of the balance of his Employee Account permitted
                          under Article X.A. of the Plan.  The balance of his
                          Employee Account shall include contributions, if any,
                          made after reemployment and earnings on those
                          contributions.  If, at the election of the rehired
                          Member, payments do not cease, no contributions may
                          be made under either Article IV. or Article V.

                          a.      Periodic Payment Option--Lifetime

                                  A Participant or Transferred Member, prior to
                                  his effective retirement date or his
                                  separation from service with 10 years of
                                  service after attaining age 50, or a Retired
                                  Member pursuant to an election made in
                                  accordance with Article X.A.2.d. shall, in
                                  the manner designated by the Benefit Board,
                                  elect to have the Lifetime Periodic Payment
                                  Option calculated based on his actuarial life
                                  or on his and his beneficiary's actuarial
                                  lives.  The electing Member's Employee
                                  Account shall be valued as of the effective
                                  date of the Periodic Payment Option election
                                  and thereafter, on December 31 of each year.
                                  In the event of an election to receive annual
                                  payments pursuant to this Option, the amount
                                  of each such annual payment shall be
                                  calculated by dividing the value of the
                                  Member's Employee Account on the effective
                                  date of the Periodic Payment Option election
                                  (or the December 31 next preceding such
                                  payment, as the case may be) by the number of
                                  years then remaining in the  electing
                                  Member's actuarial life (or if the Member so
                                  elects, in the actuarial lives of the Member
                                  and the beneficiary designated at the time of
                                  the Periodic Payment Option election).

                                  In the event an election is made to receive
                                  monthly payments pursuant to this Option, the
                                  amount of such monthly payments shall be
                                  calculated by dividing the annual payment
                                  that would be received, calculated as
                                  provided in this Article X.A.3.a, by 12.

                                  If an election is made to receive either
                                  monthly or annual payments pursuant to this
                                  Option, the assets in the electing Member's
                                  Before





                                     X - 2
<PAGE>   46
                                  Tax and Regular Accounts shall be liquidated
                                  on a pro rata basis, based on the value of
                                  each investment in his Before Tax and Regular
                                  Accounts to the extent necessary to make such
                                  payments.  The assets in the Before Tax and
                                  Regular Accounts shall be distributed on a
                                  pro rata basis based on the value the Before
                                  Tax Account and the Regular Account has to
                                  the Member's entire Employee Account to the
                                  extent necessary to make such payments.

                          b.      Periodic Payment Option--Variable

                                  A Participant or a Transferred Member, prior
                                  to his effective retirement date or his
                                  separation from service with 10 years of
                                  service after attaining age 50, or a Retired
                                  Member pursuant to an election made in
                                  accordance with Article X.A.2.d., shall, in
                                  the manner designated by the Benefit Board,
                                  designate the number of years over which he
                                  elects to receive payments, provided however,
                                  that such number of years shall not be less
                                  than two years nor more than a period which
                                  would pay the account balance during the
                                  electing Member's actuarial life or if the
                                  electing Member has designated a beneficiary,
                                  over the actuarial lives of the electing
                                  Member and his beneficiary.  The electing
                                  Member's Employee Account shall be valued as
                                  of the effective date of the Periodic Payment
                                  Option election and on December 31 of each
                                  year following such election.  In the event
                                  an election is made to receive monthly
                                  payments pursuant to this Option, the amount
                                  of each such monthly payment shall be
                                  calculated by dividing the value of the
                                  electing Member's Employee Account on:

                                  (i)      the effective date of his Periodic
                                           Payment Option election by the
                                           number of months under which he has
                                           elected to receive monthly
                                           payments; and

                                  (ii)     on January 1 of each year subsequent
                                           to the effective date of his
                                           Periodic Payment Option election by
                                           the number of months under which he
                                           elected to receive payments less the
                                           number of months since the effective
                                           date of his Periodic Payment Option
                                           election.

                                  In the event an election is made to receive
                                  annual payments pursuant to the terms of this
                                  Option, the amount of such annual payment
                                  shall be calculated by dividing the value of
                                  the electing Member's Employee Account as of:





                                     X - 3
<PAGE>   47
                                  (i)      the effective date of his Periodic
                                           Payment Option election by the
                                           number of years under which he has
                                           elected to receive annual  payments;
                                           and

                                  (ii)     on January 1 of each year subsequent
                                           to the effective date of his
                                           Periodic Payment Option by the
                                           number of years under which he
                                           elected to receive annual payments
                                           less the number of years since the
                                           effective date of his Periodic
                                           Payment Option election.

                          c.      Periodic Payment Option--Fixed

                                  A Participant or a Transferred Member, prior
                                  to his effective retirement date or his
                                  separation from service with 10 years of
                                  service after attaining age 50, or a Retired
                                  Member, pursuant to an election made in
                                  accordance with X.A.2.d., shall in the manner
                                  designated by the Benefits Board, elect to
                                  have the Fixed Periodic Payment Option
                                  calculated on the basis of an annual or
                                  monthly amount designated by the electing
                                  Member.  The designated amount shall be paid
                                  on an annual or monthly basis to the electing
                                  Member until such time as his Employee
                                  Account balance is zero.

                          d.      Periodic Payment Option--Level

                                  A Participant or Transferred Member, prior to
                                  his effective retirement date or his
                                  separation from service with 10 years of
                                  service after attaining age 50, or a Retired
                                  Member, pursuant to an election made in
                                  accordance with Article X.A.2.d., shall in
                                  the manner designated by the Benefit Board,
                                  elect to have the Level Periodic Payment
                                  Option calculated by amortizing the electing
                                  Member's Employee Account balance over the
                                  actuarial life of the electing Member at an
                                  interest rate that approximates the expected
                                  rate of return for the Fixed Income Fund as
                                  of the month payments under this Article
                                  X.A.3.d. commence.

                                  If the actual interest rate earned over the
                                  duration of the payments is greater than the
                                  established rate of return, any remaining
                                  account balance will be included in the final
                                  payment.  If the actual interest rate earned
                                  over the duration of the payments is less
                                  than the established rate of return, payments
                                  shall only be made until the account balance
                                  is zero.

                                  In the event an election is made to receive
                                  monthly periodic payment under this Option,
                                  the amount of such monthly payments shall be
                                  calculated by dividing the annual periodic
                                  payment that would be received, calculated as
                                  provided in this Article X.A.3.d., by 12.





                                     X - 4
<PAGE>   48
         B.      Full Withdrawal--Other Than Upon Retirement

                 1.       Plan Mandated Withdrawals

                          Payment of the vested portion of an Employee Account
                          shall be paid as soon as is practical to a Terminated
                          Member after his separation from service from Conoco
                          and as soon as is practical to an Alternate Payee, or
                          a Non-Spouse Beneficiary Member upon the Trustee's
                          receipt of a request for a lump sum payment, but no
                          later than 12 months following the event of the
                          death of the Member whose Employee Account is to be
                          distributed to the Non-Spouse Beneficiary.

                          Provided, however, that a lump-sum payment of the
                          amount in an Employee Account to which a Terminated
                          Member or an Alternate Payee is entitled, which has a
                          vested balance that exceeds $5,000, shall not be made
                          during the lifetime of the Terminated Member or
                          Alternate Payee unless the Terminated Member or
                          Alternate Payee, consents in writing to the
                          distribution or until April 1 of the year following
                          the year in which the Terminated Member or the Member
                          from whom the Alternate Payee received his Employee
                          Account reaches age 70 1/2.

                          A Terminated Member who has no vested interest in any
                          portion of his or her Employee Account shall be
                          deemed to have received a complete distribution of
                          his or her vested interest on the day he or she
                          separates from service.

                          The amount of any loan balance in any Member's
                          Employee Account shall be included in determining
                          whether an Employee Account has a vested balance of
                          $5,000 or less, but any distribution of a Loan
                          Balance shall be treated as a Deemed Withdrawal and
                          no further cash or distribution in kind shall be
                          made.

                 2.       Member Initiated Regular Account Withdrawals

                          Any Member, by written direction to the Trustee in
                          the manner prescribed by the Benefit Board, shall be
                          entitled to withdraw his Regular Account as follows:

                          a.      If he is vested, he may withdraw his entire
                                  Regular Account.

                          b.      If he is not vested, he may withdraw the
                                  greater of either:





                                     X - 5
<PAGE>   49
                                  (1)      An amount equal to the sum of his
                                           total, deposits to the date of
                                           withdrawal and all income added to
                                           his Regular Account attributable to
                                           his Employee Contributions (but not
                                           more than his entire Regular
                                           Account).

                                  (2)      The value of his entire Regular
                                           Account less an amount equal to the
                                           total of Conoco's contributions and
                                           all income attributable to company
                                           contributions to his Regular Account
                                           to the date of withdrawal.

                                  (3)      Any Company contributions and income
                                           attributable to such contributions
                                           remaining in the Member's Employee
                                           Account shall be forfeited.

                          c.      Conditions of Withdrawal from Regular Account

                                  Withdrawals by a Participant from his
                                  Employee Account shall be subject to the
                                  following conditions:

                                  (1)      The withdrawing Participant shall be
                                           ineligible to make Basic Deposits to
                                           the Plan for a period of six months
                                           from the date of withdrawal.
                                           Suspensions under this Article
                                           X.B.2. and suspensions under X.B.3.
                                           and X.C. shall run concurrently.

                                  (2)      If subsequent to a withdrawal
                                           described in Article X.B.2.b. and
                                           within the limits of subparagraphs
                                           (i) and (ii) below, such withdrawing
                                           Participant redeposits to his
                                           Regular Account the amount specified
                                           in subparagraph (i) below, then in
                                           such event, Conoco shall contribute
                                           to the Regular Account of the
                                           Participant an amount equal to the
                                           amount of Company Contributions
                                           forfeited on the date of withdrawal.

                                        (i)       Any Member who made a complete
                                                  withdrawal after termination
                                                  of employment and any
                                                  Participant who terminated
                                                  participation in the Plan at
                                                  the time he made the
                                                  withdrawal, must redeposit
                                                  the full amount of the
                                                  withdrawal, valued as of the
                                                  date of withdrawal.  If the
                                                  Participant did not terminate
                                                  participation in the Plan at
                                                  the time of withdrawal, he
                                                  must redeposit either the
                                                  total amount of Basic
                                                  Deposits withdrawn or the
                                                  total amount of the
                                                  withdrawal valued as of the
                                                  date of withdrawal.





                                     X - 6
<PAGE>   50
                                        (ii)      Only a Participant or an
                                                  employee of an Affiliated
                                                  Company who has an Employee
                                                  Account, which does not
                                                  consist exclusively of funds
                                                  received by the Trustee under
                                                  Article XXIII.,  in the Plan
                                                  is entitled to make the
                                                  redeposit described above and
                                                  the redeposit must be made no
                                                  later than the close of the
                                                  first period of five
                                                  consecutive One-Year
                                                  Breaks-in-Service commencing
                                                  after the withdrawal.

                          d.      Upon termination or partial termination of
                                  the Plan by Conoco Inc. or any affiliate
                                  which has adopted the Plan, or upon complete
                                  discontinuance of all Company Contributions
                                  under the Plan or complete discontinuance of
                                  contributions thereunder by any affiliate of
                                  Conoco Inc., the rights of Participants
                                  affected by such termination, partial
                                  termination, or complete discontinuance of
                                  contributions, to their respective Regular
                                  Account balances shall become nonforfeitable
                                  and such Participants shall be entitled to
                                  withdraw their entire Regular Accounts.

                          e.      If a Member terminates employment with Conoco
                                  at a time when he is not entitled to withdraw
                                  his entire Regular Account, he immediately
                                  shall forfeit that part of his Regular
                                  Account that is the difference between the
                                  full value of his Regular Account on the date
                                  the forfeiture occurs and the amount he is
                                  entitled to withdraw under the provisions of
                                  Article X.B.2.b. on the date the forfeiture
                                  occurs if he has received a distribution of
                                  his entire account pursuant to X.B.1 or if he
                                  has not received a distribution pursuant to
                                  X.B.1, such forfeiture shall occur after five
                                  One-Year- Breaks-in-Service.

                          f.      Any former Participant who had no vested
                                  interest in any portions of his Employee
                                  Account when he separated from service who
                                  was deemed to have received a complete
                                  distribution of his or her vested interest on
                                  the day he or she separated from service
                                  shall be deemed to have redeposited the full
                                  amount of such distribution pursuant Article
                                  X.B.2.d.(i) above, at such time he again
                                  becomes a Participant in this Plan or the
                                  Thrift Plan for Employees of Conoco Inc., and
                                  Conoco shall contribute an amount equal to
                                  the amount of Company Contributions and
                                  income attributable to such Company
                                  contributions forfeited on the date of such
                                  distribution, if such former Participant
                                  becomes a Participant of this Plan or the
                                  Thrift Plan for Employees of Conoco Inc.
                                  prior to one-year Breaks-in-Service.





                                     X - 7
<PAGE>   51
                 3.       Member Initiated Before Tax Account Withdrawals.

                          Any Member, by written direction to the Trustee in
                          the manner prescribed by the Benefit Board shall be
                          entitled to withdraw his Before Tax Account upon
                          retirement, separation from service, or upon
                          attaining the age of 59 1/2.  Any Member, by written
                          direction to the Trustee in a form prescribed by the
                          Benefit Board, shall be entitled to withdraw his
                          Before Tax Account upon the disposition by Conoco of
                          substantially all of the assets (within the meaning
                          of Code section 409(d)(2)) used by Conoco in a trade
                          or business of Conoco or upon the disposition by
                          Conoco of its interest in a subsidiary (within the
                          meaning of Code section 409(d)(3)), provided,
                          however, that the Member continues employment with
                          the corporation acquiring such assets or with the
                          subsidiary, and provided that the distribution is in
                          the form of a lump sum as defined in section
                          401(k)(10)(B)(ii) of the Code.  In the event of the
                          death of a Member, his designated beneficiary shall
                          be entitled to withdraw the Member's Before Tax
                          Account.  Prior to age 59 1/2 and while employed by
                          Conoco, a Participant may not make a withdrawal from
                          his Before Tax Account except upon prior approval of
                          the Benefit Board, or one to whom the Benefit Board
                          has specifically delegated the authority to determine
                          Hardship, who shall grant a full withdrawal from his
                          Before Tax Account only upon proof of Hardship
                          requiring the entire sum of his Before Tax Account.
                          A Hardship withdrawal of an amount less than the
                          entire Employee Account shall be made pursuant to
                          Article X.C.2.  A Participant who is making a
                          complete withdrawal for reason of Hardship shall be
                          required to first withdraw funds from his Regular
                          Account as provided to meet the definition of
                          Hardship in Article II.W.  A Participant shall not be
                          granted a withdrawal under this Article X.B.3. unless
                          he proves he meets the definition of Hardship set
                          forth in Article II.W.  The Benefit Board, or its
                          delegee will determine whether the definition of
                          Hardship has been met.

                          If the withdrawing Member is also a Participant in
                          the Plan, he shall be ineligible to participate in
                          the Plan for a period of six full months from the
                          date of his withdrawal, except that if the
                          withdrawing Participant has a Regular Account
                          subsequent to the withdrawal, deposits to his
                          Employee Account may continue during this six month
                          period, except as otherwise provided in Article
                          II.W.B.2.  Suspensions under Articles X.B.2., X.B.3.
                          and X.C. shall run concurrently.

                 4.       Special Provisions Applicable to Transferred
                          Employees

                          Withdrawals pursuant to the provisions of this
                          Article X.B.4. shall be subject to the following
                          conditions:





                                     X - 8
<PAGE>   52
                          a.      A transfer of employment from Conoco to an
                                  Affiliated Company or a corporation which has
                                  adopted a profit sharing plan administered by
                                  an Affiliated Company, or between Affiliated
                                  Companies or corporations which have adopted
                                  a profit sharing plan administered by an
                                  Affiliated Company, shall not be considered
                                  as a termination of or separation from
                                  employment.

                          b.      If a Member is transferred at the request or
                                  with the consent of Conoco to the employ of
                                  an employer not participating in the Plan or
                                  to otherwise noneligible employment, such
                                  Member may continue his Employee Account
                                  during the period of such employment but with
                                  no further deposits or contributions during
                                  such period, except as provided for in
                                  Article X.B.4.d.  If such transfer is to the
                                  employ of an Affiliated Company or
                                  corporation which has adopted a profit
                                  sharing plan administered by an Affiliated
                                  Company, participation in the profit sharing
                                  plan of such corporation shall be included in
                                  determining the Member's years of
                                  participation and years of service in this
                                  Plan.  If such transfer is to the employ of
                                  an employer which does not permit
                                  participation in the profit sharing plan of
                                  an Affiliated Company, the period of
                                  employment with such employer shall be
                                  included in determining years of
                                  participation and years of service in this
                                  Plan.

                          c.      A Member who is or has been transferred at
                                  the request or with the consent of Conoco,
                                  from Conoco to an Affiliated Company or a
                                  corporation which has adopted a profit-
                                  sharing plan administered by an Affiliated
                                  Company, may request the Trustee, in the
                                  manner prescribed by the Benefit Board, to
                                  transfer his entire Employee Account in the
                                  Plan to the profit-sharing plan maintained by
                                  his employer.  The transfer of an Employee
                                  Account will not be considered a withdrawal
                                  from this Plan.  The Benefit Board shall
                                  determine whether the transfer of an Employee
                                  Account shall be in cash or in kind on the
                                  basis of uniform rules applicable to all
                                  Members on the same basis.

                          d.      A Member who is or has been transferred from
                                  Conoco to an Affiliated Company, which is a
                                  member of the Du Pont controlled group or a
                                  corporation which has adopted a profit-
                                  sharing plan administered by an Affiliated
                                  Company, which is a member of the Du Pont
                                  controlled group and who continues his
                                  Employee Account pursuant to X.B.4.b., may
                                  make the maximum amount of Supplemental
                                  Deposits allowable under Article II.RR. to
                                  his Employee Account.





                                     X - 9
<PAGE>   53
                 5.       Loss of Part of Regular Account on Withdrawal

                          In case any Member shall, by reason of any withdrawal
                          under any provision of this Article X., lose his
                          interests and rights in any part of his Employee
                          Account, the amount so lost shall be applied to
                          reduce the subsequent contributions of Conoco under
                          the Plan, or if the Plan shall be terminated, the
                          Trustee shall credit any amount not so applied
                          ratably to the Employee Accounts of all other
                          Participants in the Plan at the time of termination.
                          To the extent required for such purposes, the Trustee
                          shall sell or turn in for redemption any security
                          purchased at the direction of the withdrawing Member.

                 6.       Method of Payment

                          Upon any withdrawal under the provisions of this
                          Article X. except pursuant to Article X.A.3., the
                          Trustee shall determine whether to make payment in
                          cash or in kind, or both, and for the purpose of any
                          such payment in cash, the Trustee may sell or turn in
                          for redemption any security that shall have been
                          purchased at the direction of the withdrawing Member.
                          To the extent practicable, the Trustee will make
                          payment in kind only if the withdrawing Member shall
                          so request.  For the purpose of valuing an Employee
                          Account in connection with any withdrawal under the
                          provisions of this Article X. or Article XIX.B. and
                          for the purpose of any distribution in kind,
                          securities shall be valued pursuant to uniform
                          regulations to be issued and published by the Benefit
                          Board or as otherwise set out in the Plan.

         C.      Partial Withdrawals

                 1.       Member Initiated Regular Account Withdrawals.

                          By written direction to the Trustee in the manner
                          prescribed by the Benefit Board, any Member, except a
                          Non-spouse Beneficiary, may make a maximum of three
                          partial withdrawals from his Regular Account each
                          calendar year.  Notwithstanding the preceding
                          sentence, at no time may:

                                  (i)      a Member withdraw more than the
                                           remaining credit to his Regular
                                           Account, exclusive of any loan
                                           balance;

                                  (ii)     a Member withdraw his entire Regular
                                           Account under this Article X.C.1.,
                                           unless such Member also has a
                                           Before Tax Account;

                                  (iii)    nonvested Member withdraw an amount
                                           that is not reduced by the amount of
                                           Company Contributions and any income





                                     X - 10
<PAGE>   54
                                           attributable to such Company
                                           Contributions that must remain in
                                           his Employee Account to ensure that
                                           he does not receive an amount
                                           greater than the amount to which he
                                           would be entitled if he were making
                                           a withdrawal pursuant to Article
                                           X.B.2.b.

                          Partial withdrawals shall be subject to the
                          suspension provisions of Article X.C.1.b.

                          a.      Sequence of Withdrawal of Funds.

                                  For the purpose of determining whether a
                                  withdrawal subject to a suspension as
                                  described in Article X.C.1.b. has occurred,
                                  all partial withdrawals shall be made in the
                                  following sequence from a Participant's
                                  Regular Account.  If the Participant is not
                                  entitled to withdraw Company Contributions,
                                  the sequence of withdrawal shall be as stated
                                  below but omitting the items referring to
                                  Company Contributions.

                                  (1)      Supplemental Deposits;

                                  (2)      Rollover Assets;

                                  (3)      Earnings (including profit and
                                           loss);

                                  (4)      Basic Deposits in the Regular
                                           account more than 24 months;

                                  (5)      Company Contributions in the Regular
                                           Account more than 24 months;

                                  (6)      Basic Deposits in the regular
                                           Account 24 months or less; and

                                  (7)      Company Contributions in the Regular
                                           Account 24 months or less;

                          b.      Suspensions Due to Partial Withdrawal.

                                  In the case of any partial withdrawal under
                                  Article X.C.1. or XVI.B.4., of the type of
                                  funds described in X.C.1.a(5), (6) or (7)
                                  [[X.C.1.a(6) or (7)]], a Member, who is a
                                  Participant may not make any Basic Deposits
                                  to his Employee Account for a period of six
                                  months following his most recent withdrawal.
                                  If a Participant makes a partial withdrawal
                                  during the time he is precluded from making
                                  Basic Deposits pursuant to this Article
                                  X.C.1.b., the six-month period imposed for
                                  any previous withdrawal shall run





                                     X - 11
<PAGE>   55
                                  concurrently with the six-month period
                                  following his most recent withdrawal.  This
                                  period shall be included in determining the
                                  Participant's years of participation under
                                  the Plan and shall not be deemed to be a
                                  suspension for the purpose of Article IX of
                                  the Plan.

                                  During the period of suspension provided for
                                  in this Article X.C.1.b., a Participant who
                                  is making Supplemental Deposits will continue
                                  making such deposits until he voluntarily
                                  elects to suspend such deposits in accordance
                                  with Article IX.B.

                          c.      Redeposits and Interests Remaining upon
                                  Partial Withdrawals.

                                  Upon any withdrawal pursuant to this Article
                                  X.C.1.:

                                  (1)      A nonvested Member forfeits the
                                           matching Company Contributions and
                                           income attributable to such Company
                                           Contributions attributable to the
                                           Basic Deposits he withdraws,
                                           provided, however, that if a
                                           nonvested Member who is a
                                           Participant redeposits the total
                                           amount of Basic Deposits which he
                                           withdrew or the total amount of the
                                           withdrawal, valued as of the date of
                                           withdrawal, then in such event,
                                           Conoco shall contribute to the
                                           Employee Account of the Participant
                                           an amount equal to the amount of
                                           Company Contributions and income
                                           attributable to such Company
                                           Contributions forfeited under this
                                           paragraph.  Only an Employee, who is
                                           a Participant, or an employee of an
                                           Affiliated Company who has an
                                           Employee Account in the Plan is
                                           entitled to make such a redeposit
                                           and the redeposit must be made no
                                           later than the close of the first
                                           period of five consecutive One-Year
                                           Breaks-in-Service commencing after
                                           the withdrawal.

                                  (2)      A vested Member shall not lose his
                                           interest in or his rights in respect
                                           to the balance of his Employee
                                           Account.

                 2.       Applicable to A Member's Before Tax Account

                          a.      Eligibility to Make Withdrawal

                                  A Member, if not employed by Conoco, by
                                  written direction to the Trustee in the
                                  manner prescribed by the Benefit Board, shall
                                  be entitled to make a partial withdrawal from
                                  his Before Tax Account upon his retirement or
                                  upon separation from service.  A Participant,
                                  by direction to the Trustee, in the manner
                                  prescribed by the Benefit Board, shall be
                                  entitled to make a partial withdrawal from
                                  his Before





                                     X - 12
<PAGE>   56
                                  Tax Account upon attaining the age of 59 1/2
                                  (subject to procedures implemented by the
                                  Benefit Board to implement Code Section
                                  72(e)(8)(1)) or upon proof of Hardship.  A
                                  Participant may not make a Hardship
                                  withdrawal except by prior approval of the
                                  Benefit Board or its delegee, unless the
                                  Participant certifies that the need for the
                                  withdrawal is a result of medical expense,
                                  college education expense, or the purchase of
                                  a principal residence for the Participant or
                                  his dependent.  The amount of a partial
                                  Hardship withdrawal will be limited to the
                                  amount of immediate financial need
                                  demonstrated by the Participant to the
                                  Benefit Board, or its delagee.

                          b.      Conditions of Partial Withdrawal of Before
                                  Tax Account.

                                  (1)      A Participant shall not be granted a
                                           withdrawal under Article X.C.2
                                           unless he proves he has attained age
                                           59 1/2 or that he meets the
                                           definition of Hardship set forth in
                                           Article II.W. The Benefit Board or
                                           its delegee will determine whether
                                           the definition of Hardship has been
                                           met.

                                  (2)      A nonvested Member forfeits the
                                           matching Company Contributions and
                                           income attributable to such Company
                                           Contributions attributable to the
                                           Basic Deposits he withdraws from his
                                           Before Tax Account, unless such
                                           nonvested Member is a Participant
                                           who subsequently redeposits the
                                           total amount of such withdrawal to
                                           his Regular Account pursuant to
                                           Article X.B.2.d(2) and subsequently
                                           vests in such Company Contributions.
                                           The amount of Basic Deposits that
                                           may be withdrawn by a nonvested
                                           Member will be reduced by the amount
                                           of Company Contributions and income
                                           attributable to such Company
                                           Contributions which must remain in
                                           the Member's Regular Account to
                                           insure that he would receive the
                                           amounts to which he would be
                                           entitled if he were making a full
                                           withdrawal of his Employee Account.

                                  3)       A Member who makes a partial
                                           withdrawal from his Before Tax
                                           Account shall make such withdrawals
                                           of Basic Deposits and Earnings in
                                           his Before Tax Account in the same
                                           order and under the same terms and
                                           conditions relating to suspension
                                           from participation in the Plan and
                                           frequency of withdrawals as would
                                           apply to his Regular Account
                                           pursuant to Article X.C.1. but
                                           subject to the limitations on
                                           withdrawal of this Article X.C.2.,
                                           except that if such withdrawal shall
                                           be by a Participant for reason of
                                           Hardship it shall not be counted as
                                           one of the three partial withdrawals
                                           allowable during a calendar year.





                                     X - 13
<PAGE>   57
                 3.       If, at any time pursuant to the provisions of Article
                          X.C., a Member withdraws the entire amount credited
                          to his Employee Account, he shall be deemed to have
                          made a full withdrawal pursuant to Article X.B.

         D.      Separation from service during or after the year in which a
                 Participant attains age 55 shall be considered to be on
                 account of early retirement under this Plan solely for the
                 purpose of enabling the Member to qualify for an exemption
                 under Section 72(t)(2)(A)(v) of the Internal Revenue Code.

         E.      Compliance with Minimum Distribution Rules

                 1.       General Rule

                          Notwithstanding any other provision of this Plan, a
                          Member, Beneficiary, Terminated Member, Retired
                          Member, or Alternate Payee shall receive Minimum
                          Distributions.  "Minimum Distributions" shall mean
                          distributions in such amounts as are required to
                          satisfy section 401(a)(9) of the Code, the incidental
                          death benefit rule of section 401(a)(9)(G) of the
                          Code, and regulations under both of those Code
                          sections, and which are made no later than required
                          to satisfy section 401(a)(9) of the Code and
                          regulations thereunder.  Except as provided in
                          Article X.E.2., 3. and 4. below, a Member,
                          Beneficiary, Terminated Member, Retired Member, or
                          Alternate Payee shall receive his Minimum
                          Distributions on or before his Required Beginning
                          Date in the form of a lump sum payment of his entire
                          Vested Account.  In the case of a Member, Terminated
                          Member or Retired Member, the Required Beginning Date
                          is April 1 of the year following the year in which
                          such individual turned age 70 1/2.  In the case of a
                          Beneficiary or Alternate Payee, the Required
                          Beginning Date is December 31 of the year in which
                          the Member to whom the benefit relates turns or would
                          have turned age 70 1/2.

                 2.       Active Employees

                          If, prior to January 1, 2000, a Member has not
                          terminated employment with Conoco on or before April
                          1 of the calendar year following the calendar year in
                          which he attained age 70 1/2, Deemed Minimum
                          Distribution payments, in such amounts as would be
                          required to satisfy code section 401(a)(g), if such
                          Member had terminated his employment, will begin no
                          later than that date in the form elected by the
                          Member pursuant to Article X.A.2, or if the Member
                          has not made such election, in the form of a Lifetime
                          Periodic Payment calculated on the actuarial life of
                          the Member.





                                     X - 14
<PAGE>   58
                 3.       Retired Members

                          If a Retired Member makes an election under Article
                          X.A.3. of the Plan to receive a Periodic Payment
                          Option and the payments begin before his Required
                          Beginning Date, the payments will be adjusted no
                          later than his Required Beginning Date, as necessary,
                          to ensure that the Retired Member receives Minimum
                          Distributions.  If the Retired Member has made such
                          an election but the payments do not begin before his
                          Required Beginning Date, Minimum Distributions will
                          begin no later than that date, in the form elected by
                          the Retired Member, adjusted as necessary to ensure
                          that the Retired Member receives Minimum
                          Distributions.  If a Retired Member, who has made an
                          election under Article X.A.2. has not withdrawn his
                          entire Employee Account or made an election pursuant
                          to Article X.A.3., Minimum Distributions will begin
                          no later than his Required Beginning Date in the form
                          of a Lifetime Periodic Payment calculated on the
                          actuarial life of the Retired Member, adjusted as
                          necessary to ensure that the Retired Member receives
                          Minimum Distributions.

                 4.       Spouse Beneficiaries

                          Payments to a spouse beneficiary must be made
                          according to the following rules.

                          a.      If the Member died before his Required
                                  Beginning Date, payments to the spouse
                                  beneficiary must begin no later than the
                                  Beneficiary's Required Beginning Date and
                                  must be over the life expectancy of the
                                  spouse beneficiary, or a period certain which
                                  is no longer than that life expectancy (or 5
                                  years if that is greater than the life
                                  expectancy).

                          b.      If the Member died on or after his Required
                                  Beginning Date, payments to the spouse
                                  beneficiary must begin immediately and must
                                  be made at least as rapidly as the method in
                                  effect at the Member's death.

         F.      Waiver of Notice

                 Notwithstanding any other provision of the Plan:

                 If a distribution is one to which sections 401(a)(11) and 417
                 of the Internal Revenue Code do not apply, such distribution
                 may commence less than 30 days after the notice required under
                 section 1.411(a)-11(c) of the Income Tax regulations is given,
                 provided that:





                                     X - 15
<PAGE>   59
                          (1)     the Plan Administrator clearly informs the
                                  Participant that the Participant has a right
                                  to a period of a least 30 days after
                                  receiving the notice to consider the decision
                                  of whether or not to elect a distribution
                                  (and, if applicable, a particular
                                  distribution option), and

                          (2)     the Participant, after receiving the notice
                                  affirmatively elects a distribution.

                 The term "Participant" as used in this Article X. F. shall
                 have the same meaning as used in Revenue Procedure 93-47, as
                 released on November 30, 1993, and not the meaning set forth
                 in Article II. HH.

         G.      Twenty Percent Withholding

                 Any distribution made under this Article X. and any "Deemed
                 Withdrawal" under Article XI. that is an Eligible Rollover
                 Distribution within the meaning of Article XXIII. B. 2. a. and
                 which a Member does not elect to have paid directly to an
                 Eligible Retirement Plan specified by the Distributee in the
                 form of a Direct Rollover shall be subject to the 20 percent
                 withholding specified in Code section 3405.





                                     X - 16
<PAGE>   60
XI.      LOANS

         A.      Eligibility for a Loan

                 1.       The Loan Administrator (as provided for in Article
                          XI.K.1. may grant a loan to any Plan Member who at
                          the time of loan closure is eligible to make Basic
                          Deposits pursuant to Article IV., or who would be
                          eligible to make Basic Deposits but for the
                          suspension provisions of Articles IX.B. or X.C. and
                          to any Plan Member with an Employee Account who is a
                          participant of the Thrift Plan for Employees of
                          Conoco Inc. (the "Thrift Plan") entitled to make
                          Basic Deposits under Article IV. of the Thrift Plan,
                          or who would be eligible to make Basic Deposits, but
                          for the Suspension provisions of Articles IX.B., X.B.
                          or X.C. of the Investment Plan.  The Loan
                          Administrator may also grant a loan to any
                          "party-in-interest" (as defined in 29 U.S.C. Section
                          1002(14)) with an Employee Account or to any person
                          who has a vested Employee Account under the Plan and
                          who is employed by a Corporate Affiliate.  A loan may
                          not be granted to those Members eligible to make
                          Basic Deposits pursuant to Article IX.A.3.  For the
                          purpose of this Article XI., a person to whom a loan
                          is granted shall be referred to as a "Borrowing
                          Participant."  For the purpose of this Article XI.,
                          Corporate Affiliate shall mean a corporation that has
                          adopted the Plan or any other profit sharing plan and
                          is a member of the controlled group of corporations
                          (within the meaning of Section 1563(a) of the
                          Internal Revenue Code, determined without regard to
                          Section 1563(a)(4) and Section 1563(3)(3)(C)) of
                          which Du Pont is parent, and any corporation which is
                          not a member of said controlled group of corporations
                          but has adopted any profit sharing plan administered
                          by a plan administrator appointed by any member of
                          said controlled group.

                 2.       The Loan Administrator may grant up to five loans,
                          but never more than one loan on any day, from such
                          Borrowing Participant's vested Employee Account,
                          provided, however, that no loans may be granted on
                          the basis of a Borrowing Participant's Employee
                          Account to which he has not contributed Basic
                          Deposits, and may direct the Trustee to disburse
                          trust funds to such Borrowing Participant, provided
                          that such loans are available to all persons
                          described in Article XI.A.1. on a reasonably
                          equivalent basis and the terms and conditions of such
                          loans comply with this Article XI. and such other
                          terms and conditions as the Benefit Board may from
                          time to time prescribe.

                 3.       Application for a loan shall be in the manner
                          prescribed by the Benefit Board.  Each loan shall be
                          evidenced by a promissory note which shall set forth
                          the principal amount of the loan, the rate of
                          interest, the repayment schedule, identification of
                          any security interest or collateral, and such other
                          items as may be determined by the Benefit Board.





                                     XI - 1
<PAGE>   61
                 4.       Notwithstanding anything to the contrary, a loan
                          shall not be granted if it would adversely affect
                          either the status of the Plan as one which qualifies
                          as a profit sharing plan pursuant to Section 401 of
                          the Internal Revenue Code of 1954, as amended, or
                          which would adversely affect the trust maintained
                          pursuant to Article XIV.A. as a trust which is exempt
                          from Federal Income Tax pursuant to Section 501 of
                          the Internal Revenue Code of 1954, as amended.

         B.      Obtaining Funds For a Loan

                 Upon approval of the Loan Administrator of the loan
                 application, such Borrowing Participant shall direct the
                 Trustee to sell, turn in for redemption, or liquidate, as may
                 be appropriate, any investments in his Employee Account under
                 any one or more of Options A., B., C., or D. as is necessary
                 to make funds available for the loan granted to such Borrowing
                 Participant and direct the Trustee to disburse such funds to
                 the Borrowing Participant, provided such loan shall not be
                 prohibited by any law including, but not limited to, Section
                 4975 of the Code of 1954, as amended, or Section 406 of the
                 Employee Retirement Income Security Act, as amended.

                 1.       Such sale, redemption, or liquidation shall be by
                          Fund Transfer Order or such other direction or form
                          as prescribed by the Benefit Board, however, to the
                          extent the funds are available for the loan amount in
                          a Borrowing Participant's Regular Account, such sale
                          will be made from any one or more of Options A., B.,
                          C., or D. of said Regular Account.

                 2.       Any funds disbursed as a loan to a Borrowing
                          Participant shall be deemed invested in Option E.
                          (Loan Account).

         C.      Maximum Amount of Loan

                 The amount of any loan from the Plan, determined by
                 aggregating the outstanding balances of loans from the Plan,
                 the Thrift Plan, and loans from profit sharing plans adopted
                 by any Corporate Affiliate, shall not be less than $1,000.00
                 nor greater than the lesser of (i) $50,000.00 reduced by the
                 excess, if any, of (1) the highest outstanding balance of
                 loans from the Plan during the one-year period ending on the
                 day before the date on which such loan was made over (2) the
                 outstanding balance of loans from the Plan on the date on
                 which such loan was made; or (ii) 50 percent of the vested
                 portion of the Borrowing Participant's Employee Account.  The
                 value of the Borrowing Participant's Employee Account for the
                 purpose of this Article XI.C. shall be determined by the Loan
                 Administrator from the most recent valuation information that
                 is available at the time of receipt of the loan application,
                 as adjusted by any contributions or withdrawals made after
                 receipt of the loan application and prior to loan closure,
                 subject to the following additional provisions:





                                     XI - 2
<PAGE>   62
                 1.       Solely for the purpose of determining whether the
                          amount of any loan made under the Plan as adopted by
                          any corporation which is a member of the controlled
                          group of corporations (within the meaning of Section
                          1563(a) of the Internal Revenue Code, determined
                          without regard to Section 1563(a)(4) and Section
                          1563(e)(3)(C)) of which Du Pont is parent, exceeds 50
                          percent of the value of the vested portion of the
                          Borrowing Participant's Employee Account, the Loan
                          Administrator shall include the vested portion of the
                          Borrowing Participant's Employee Account in the Plan,
                          the Thrift Plan, and the Du Pont Savings and
                          Investment Plan, exclusive of the Borrowing
                          Participant's Employee Account in the Plan, the
                          Thrift Plan,. and the Du Pont Savings and Investment
                          Plan as such plans have been adopted by corporations
                          which are not members of said controlled group of
                          corporations.

                 2.       The maximum amount of any loan shall in no event
                          exceed 50 percent of the vested portion of the
                          Borrowing Participant's Employee Account, exclusive
                          of any Employee Account established pursuant to a
                          QDRO or to which the Borrowing Participant is
                          entitled as a beneficiary under Article XII., as
                          determined from the most recent valuation information
                          that is available at the time of loan closure.  For
                          purposes of the preceding sentence, when loans are
                          made simultaneously to a Borrowing Participant under
                          the Plan, as adopted by Corporate Affiliates which
                          are members of the control group and as adopted by
                          members which are not members of the controlled group
                          (within the meaning of Section 1563(a) of the
                          Internal Revenue Code, determined without regard to
                          Section 1563(a)(4) and Section 1563(e)(3)(C)), no
                          such loan shall be considered to exceed 50 percent of
                          value of the vested portion of the Borrowing
                          Participant's Employee Account if the aggregate
                          amount of said loans does not exceed 50 percent of
                          the sum of the Borrowing Participant's Employee
                          Accounts under the Plan, as adopted by said
                          corporations.

         D.      Loan Payment Period

                 The period of any loan shall be as requested by the Borrowing
                 Participant and as agreed to by the Loan Administrator,
                 provided that the minimum period of any loan shall be 12
                 months, with additional monthly increments, through a maximum
                 loan period of 60 months, provided, however, that such maximum
                 loan period may be greater than 60 months and not more than
                 120 months for a loan granted to a Borrowing Participant who
                 has furnished evidence satisfactory to the Benefit Board that
                 the loan will be used to acquire any dwelling unit which,
                 within a reasonable time, is to be used (determined at the
                 time the loan is made) as the principal residence of the
                 Participant.





                                     XI - 3
<PAGE>   63
         E.      Rate of Interest

                 1.       The rate of interest that shall be charged for a loan
                          granted pursuant to Article XI. shall be determined
                          on the last work day of the calendar month preceding
                          the receipt of the loan application, or any other
                          date as designated from time to time by the Benefit
                          Board, and shall be the average rate for secured
                          personal loans (rounded to the next lower one-quarter
                          percent) than in effect at a group of financial
                          institutions, as designated from time to time by the
                          Benefit Board, provided, however, that the interest
                          rate shall not exceed the maximum amount allowed by
                          law.

                 2.       The rate of interest, with respect to any loan, shall
                          be constant throughout the term of the loan and shall
                          not exceed the rate of interest permitted under
                          applicable law.  Each Borrowing Participant shall
                          receive from the Loan Administrator, at the time of
                          loan closure, a statement regarding the amount of the
                          loan, the annual percentage rate, the amount of
                          interest, and total repayment schedule of the loan,
                          and any additional information required by applicable
                          law.

         F.      Frequency of Loans

                 A loan shall not be granted more frequently than once during
                 any 24-consecutive-hour period.

         G.      Method of Loan Repayment

                 Unless otherwise provided in this Article XI., repayment of
                 the outstanding principal and accrued interest on any loan
                 shall be accomplished through the deduction of equal amounts
                 (or nearly equal amounts) from the monthly Compensation of the
                 Borrowing Participant during the term of the loan.  The
                 repayment amount representing principal shall be credited
                 first to a Borrowing Participant's Before Tax Account until or
                 unless the loan account balance of such Before Tax Account is
                 equal to zero.  The repayment amount representing interest
                 shall be credited to earnings in the Borrowing Participant's
                 Regular or Before Tax Account as applicable.  The loan
                 repayment amounts shall be invested pursuant to the Borrowing
                 Participant's current Investment Direction as provided for in
                 Article VII.  If the monthly Compensation of a Borrowing
                 Participant is not sufficient to obtain or the Borrowing
                 Participant does not authorize the scheduled principal and
                 interest payment which becomes due and payable ("Loan
                 Payment"), unless the Loan Payment or interest payment is
                 being made by direct remittance as provided for in Article
                 XI.H., a default will be declared pursuant to Article XI.J.1.





                                     XI - 4
<PAGE>   64
         H.      Exceptions to Normal Method of Repayment

                 1.       A Borrowing Participant who is on an authorized leave
                          of absence or an absence due to layoff or strike and
                          is not paid his Compensation nor entitled to such
                          Compensation because of such absence shall be
                          permitted for a period not to exceed 12 consecutive
                          months, to remit directly to the Loan Administrator
                          the amount of any scheduled Loan Payment.  The
                          payment of less than the scheduled Loan Payment will
                          be declared a default pursuant to Article XI.J.1.
                          If, at the conclusion of a 12-consecutive-month
                          period of absence, the Borrowing Participant has not
                          returned, the amount of the Loan Account shall be
                          cancelled pursuant to Article XI.J.2.

                 2.       If it is determined by the Loan Administrator that
                          the procedure of payroll deduction as a method of
                          Loan Payment is not feasible with respect to a
                          Borrowing Participant, such Borrowing Participant
                          shall remit directly to the Loan Administrator the
                          amount of any scheduled Loan Payment.  The payment of
                          less than the scheduled Loan Payment will be declared
                          a default pursuant to Article XI.J.1.

                 3.       Notwithstanding a declaration of a default pursuant
                          to Article XI.J.1., due to a Borrowing Participant's
                          termination of employment, a Borrowing Participant
                          who has elected early, normal, or incapacity
                          retirement and has elected to defer withdrawal of his
                          Employee Account pursuant to Article X.A.2. may, for
                          such period of deferral, remit directly to the Loan
                          Administrator the amount of any scheduled Loan
                          Payment for any loan obtained from the Thrift Plan
                          for Employees of Conoco Inc. prior to January 1,
                          1999.  The payment of less than the scheduled Loan
                          Payment will be declared a default pursuant to
                          Article XI.J.1.

                 4.       In the event that any Borrowing Participant fails to
                          make direct remittance as provided under this Article
                          XI.H. of any scheduled principal and interest payment
                          under Article XI.H.1. 2, and 3 by the 45th day after
                          such payment is due, a default will be declared
                          pursuant to Article XI.J.1.

                 5.       Notwithstanding anything to the contrary, no
                          provision of this Article XI.H. shall extend the
                          approved term of the loan.

         I.      Prepayment of Loan Balance

                 Notwithstanding any other provisions of this Article XI., a
                 Borrowing Participant shall retain the right to repay, at any
                 time prior to the end of the loan period, without penalty, the
                 full amount of any loan granted pursuant to this Article XI.
                 Such payment shall be made in cash, a certified or cashier's
                 check, or such other form of guaranteed payment as permitted
                 by the Loan Administrator, or by an election on





                                     XI - 5
<PAGE>   65
                 the part of the Borrowing Participant to incur a Deemed
                 Withdrawal from such Borrowing Participant's Employee Account
                 pursuant to the terms of Article XI.J.4.

         J.      Loan Defaults

                 1.       While any portion of a loan in a Member's Employee
                          Account is outstanding, a default will be declared as
                          described in Article XI.G., XI.H.1, 2, 3, or 4 or
                          upon the termination of employment of any Borrowing
                          Participant, such termination including, but not
                          limited to, retirement, death, disability, or
                          resignation but excluding any transfer of employment
                          to any Corporate Affiliate and any transfer of
                          employment as stated in Article X.B.4. (Declaration
                          of Default).  Except as provided in Article XI.J.3.,
                          a notice (Notice of Default) will be issued upon a
                          Declaration of Default.

                 2.       A Deemed Withdrawal pursuant to Article XI.J.4. will
                          be made from the Borrowing Participant's Employee
                          Account without the issuance of a Notice of Default
                          at the end of any direct remittance period provided
                          in Article XI.H.1.  A Deemed Withdrawal will be made
                          for loans upon the occurrence of a Declaration of
                          Default with respect to the loan for which the
                          Declaration of Default was issued, for the Loan
                          Balance of a loan granted pursuant to this Article
                          XI. if all Loan Payments are not made prior to 45
                          days after the first Loan Payment was not made by the
                          Borrowing Participant.

                 3.       If the Loan Administrator does not receive payment of
                          any unpaid scheduled Loan Payment or payments due
                          pursuant to Article XI.H.4. within 30 days of the
                          issuance of a Notice of Default, the Loan Account and
                          accrued interest (Loan Balance) shall be deemed
                          withdrawn (Deemed Withdrawal) as follows:

                          a.      If the Loan Account is in a Member's Regular
                                  Account only, a Deemed Withdrawal shall be
                                  made from the Borrowing Participant's Regular
                                  Account for the amount of the Loan Balance.

                          b.      If the Loan Account is in a Member's Before
                                  Tax Account and the Borrowing Participant is
                                  not age 50 1/2 or over, a Deemed Withdrawal
                                  shall be made consistent with the provisions
                                  of Article XI.J.4.d.

                          c.      If the Loan Account is in a Member's Before
                                  Tax Account and the Borrowing Participant is
                                  eligible to make a withdrawal from such
                                  account, then a Deemed Withdrawal shall be
                                  made from the Borrowing Participant's Before
                                  Tax Account unless the Member elects
                                  otherwise.





                                     XI - 6
<PAGE>   66
                          d.      Notwithstanding the preceding, no Deemed
                                  Withdrawal shall occur if such withdrawal
                                  would adversely affect the status of the Plan
                                  under Section 401(a) or 401(k) of the Code of
                                  1954, as amended.  In that event, the Plan
                                  Administrator may take such other action as
                                  it deems necessary to ensure repayment of
                                  loans made under this Article and in
                                  compliance with applicable law.  If a Deemed
                                  Withdrawal under Article XI.J.4. would
                                  adversely affect the status of the Plan under
                                  Section 401(a) or 401(k) of the Code:

                 1.       The Member's entire Regular Account shall be
                          distributed to the Member, subject to Article
                          X.B.2.a. and b. in accordance with the previously
                          given consent of the Member.

                 2.       If the Member is a Participant in the Plan, he shall
                          be suspended from making Supplemental Deposits
                          during the period beginning 45 days from the date the
                          first payment is missed and ending with the last day
                          of the month in which all Past Due Loan Payments are
                          made; and

                 3.       If the Member is a Participant in the Plan, he shall
                          be suspended from making Basic Deposits and from
                          receiving matching Company Contributions pursuant to
                          Article V.A.1. during the period beginning 45 days
                          from the date the first payment is missed and ending
                          with the last day of the month in which all the Past
                          Due Loan Payments are made or the expiration of six
                          months whichever is later.

                 4.       The amount of any Deemed Withdrawal shall be
                          considered to have been distributed from the
                          Borrowing Participant's Employee Account pursuant to
                          the sequence of withdrawals specified in Article X.C.
                          and shall be subject to the suspensions thereof, but
                          such Deemed Withdrawal will not be considered as one
                          of the three partial withdrawals allowable in a
                          calendar year.

                 5.       A Deemed Withdrawal may be initiated by the Loan
                          Administrator pursuant to conditions described in
                          this Article XI.J.

         K.      Loan Administrator's Authority/Responsibility

                 1.       Subject to the direction of the Board, the Benefit
                          Board shall have overall responsibility for the
                          administration and operation of the loan procedure
                          under this Article XI., which responsibility it shall
                          in part discharge by the appointment of a Loan
                          Administrator.

                 2.       The Loan Administrator shall be one or more persons
                          appointed by the Benefit Board.  In the absence of
                          such appointment, the Benefit Board shall be the Loan
                          Administrator.





                                     XI - 7
<PAGE>   67
                          Each person serving as the Loan Administrator shall
                          remain in office at the will of the Benefit Board,
                          and the Benefit Board may from time to time remove
                          any person serving as the Loan Administrator with or
                          without cause and shall appoint his successor.  The
                          Loan Administrator shall have the general
                          responsibility for the administration of loans to
                          Borrowing Participants under the Plan.

                 3.       Each person, upon being appointed Loan Administrator,
                          shall file an acceptance thereof in writing with the
                          Benefit Board.  Any person serving as Loan
                          Administrator may resign by delivering his written
                          resignation to the Benefit Board, and such
                          resignation shall become effective upon the date
                          specified therein.  In the event more than one person
                          is serving as Loan Administrator, the remaining
                          persons serving as Loan Administrator shall
                          constitute the Loan Administrator with full power to
                          act until said vacancy is filled.

                 4.       The Loan Administrator shall administer loans to
                          Borrowing Participants in accordance with the terms
                          of the Plan and shall have all powers necessary to
                          accomplish that purpose, including, but not limited
                          to, the following:

                          a.      To process, approve, or disapprove
                                  applications for loans to Borrowing
                                  Participants, based upon objective criteria
                                  applied consistently;

                          b.      To decide all questions arising in the
                                  administration of loans, including those
                                  relating to eligibility for a loan, the terms
                                  and conditions for such loan, and the
                                  repayment of such loan;

                          c.      The authorize the Trustee to make payment of
                                  funds to the Borrowing Participant.  Further,
                                  to submit to the Trustee amounts received in
                                  repayment of principal and interest and
                                  advise the Trustee of the Plan options such
                                  funds are to be invested in;

                          d.      To execute on behalf of the Benefit Board, as
                                  creditor, any note, security agreement, or
                                  other evidence of credit or security
                                  arrangement created pursuant to the
                                  provisions of this Article;

                          e.      To communicate to Participants any changes
                                  regarding the terms and conditions upon which
                                  a loan shall be granted, including the
                                  applicable rate of interest charged with
                                  respect to a loan, and the effective date
                                  with respect to any such changes.

                 5.       The Loan Administrator shall have authority to
                          delegate, from time to time, all or any part of its
                          responsibilities under the Plan to such person or
                          persons as it may deem advisable and in the same
                          manner revoke any such





                                     XI - 8
<PAGE>   68
                          delegation of responsibility.  Any action of the
                          delegate shall have the same force and effect for all
                          persons hereunder as if such action had been taken by
                          the Loan Administrator.

         L.      Suspension of Loans

                 The Benefit Board may from time to time suspend the granting
                 of loans under the Plan for such purposes as the Benefit Board
                 may determine, including, but not limited to, the proper
                 discharge of its fiduciary duties under law.





                                     XI - 9
<PAGE>   69
XII.     BENEFICIARIES, TERMINATED EMPLOYEES, AND ALTERNATE PAYEES

         A.      Beneficiary Designation

                 Any Member, except an Alternate Payee or a Non-spouse
                 Beneficiary,  may file with the Trustee a written designation,
                 in the form prescribed by the Benefit Board, of the
                 beneficiary or beneficiaries to receive all or part of his
                 Employee Account upon his death.  If however, a Member is
                 married, such Member may not designate anyone other than his
                 spouse as beneficiary under the Plan, unless the Member's
                 spouse consents in writing (such consent being duly notarized)
                 to the designation of any other beneficiary.  A Member who is
                 single, or a married Member with spousal consent may from time
                 to time change or cancel the existing beneficiary designation.
                 The last such designation received by the Trustee shall be
                 controlling over any testamentary or other disposition;
                 provided, however, that no designation, or change or
                 cancellation thereof, under this Plan shall be effective
                 unless received by the Trustee prior to the Member's death,
                 and in no event shall it be effective as of a date prior to
                 such receipt.

                 Notwithstanding the preceding sentence, if a beneficiary or
                 beneficiaries disclaims Plan assets to which he is entitled as
                 a properly designated beneficiary under this Article XII.A.,
                 the benefits will be paid to the contingent beneficiary or
                 beneficiaries designated by the deceased Member. If there is
                 no properly designated contingent beneficiary or the
                 contingent beneficiary disclaims the Plan assets to which he
                 is entitled as a properly designated beneficiary under this
                 Article XII.A., then the deceased Member's Employee Account
                 shall be paid as set forth in Article XII.B., below.  Any such
                 disclaimer shall be:

                 1.       a qualified disclaimer, as defined in the Internal
                          Revenue Code Section 2518, and

                 2.       received by the Plan no later than 9 months after the
                          death of the Employee.

         B.      Payment to Beneficiary(s)

                 Upon the death of a Member, his entire Employee Account shall
                 be paid or distributed in lump sum to his spouse, if any,
                 unless his spouse has consented to the designation of a
                 beneficiary or beneficiaries, as set forth in Article XII.A
                 above, then to the beneficiary or beneficiaries designated by
                 him as provided in Article XII.A. or, in the absence of such
                 designation to the beneficiary or beneficiaries entitled
                 thereto under his last will and testament; or, in the absence
                 of such will and testament, to the beneficiary or
                 beneficiaries entitled thereto under the intestacy laws
                 governing the disposition of his estate.  If the Trustee shall
                 be in doubt as to the right of any beneficiary, the Trustee
                 may pay the amount in question to the estate of the deceased
                 Member, in which event the Trustee, Conoco, and the Benefit





                                    XII - 1
<PAGE>   70
                 Board shall not be under any further liability to anyone.
                 Such payment shall be made no later than the end of the Plan
                 year in which such Member dies.

         C.      Payment to Terminated Employees (Terminated Members)

                 Payment to former Employees who terminated employment with
                 Conoco other than by Normal, Early or Incapacity Retirement
                 under the Retirement Plan or other than after attaining age 50
                 with 10 years of service shall be according to the provisions
                 of Articles X.B.1. and X.B.2.f.

         D.      Qualified Domestic Relations Order

                 The Plan will make payment from a Member's, Terminated
                 Member's or Retired Member's Regular and/or Before-Tax Account
                 as required by a qualified domestic relations order, as
                 defined under section 414(p) of the Code.  Any amounts awarded
                 to an Alternate Payee, prior to the death of the Member,
                 Terminated Member or Retired Member pursuant to a domestic
                 relations order determined by the Plan Administrator to be
                 qualified shall be distributed within 90 days of such
                 determination, unless the qualified domestic relations order
                 specifies that the Alternate Payee shall have an account in
                 the Plan.  No Loan, Withdrawal, or other action otherwise
                 permissible pursuant to any provision of the Plan shall be
                 taken which, in the opinion of the Plan Administrator, may be
                 inconsistent with the provisions of a qualified domestic
                 relations order.

         E.      Sale of Business or Facility

                 1.       An Employee or former Employee who has an Employee
                          Account and whose employment with Conoco or an
                          Affiliated Company is to be terminated in connection
                          with the sale by Conoco or an Affiliated Company of
                          any business or facility (such Employee or former
                          Employee is hereinafter referred to as
                          "Sale-Terminee") may, at any time prior to
                          termination of employment, make an irrevocable
                          election to have the balance of his Employee Account
                          paid directly to the trustee of a qualified defined
                          contribution plan maintained by the purchaser of the
                          business or facility, if such plan will accept the
                          transfer of assets.  If he so elects, the following
                          provisions will apply, notwithstanding anything else
                          to the contrary in the Plan.

                          a.      On or after the valuation date occurring as
                                  soon as is practicable pursuant to procedures
                                  established by the Benefit Board, after
                                  termination of the Sale-Terminee's employment
                                  with Conoco or an Affiliated Company, the
                                  balance of his Employee Account shall, upon
                                  approval by the Benefit Board, be liquidated
                                  and transferred in cash.





                                    XII - 2
<PAGE>   71
                          b.      If the receiving plan will permit transfer of
                                  loans and the purchaser of the business or
                                  facility agrees to make deductions from
                                  monthly compensation of the Sale-Terminee for
                                  loan payments, the Sale-Terminee's
                                  termination of employment with Conoco or an
                                  Affiliated Company shall not cause a
                                  Declaration of Default to occur.  Except as
                                  provided in this paragraph b., the provisions
                                  of Section XI.J., "Loan Default", will apply
                                  to such loan prior to its transfer to the
                                  receiving plan and for the purpose of
                                  applying Section XI.J., termination of
                                  employment or retirement from the purchaser
                                  of the business or facility shall be
                                  considered a termination of employment or
                                  retirement from Conoco.

                          c.      Payment to the trustee of the receiving plan
                                  will be made after Conoco receives
                                  satisfactory proof that the requirements of
                                  Section 414(l) of the Code will be satisfied
                                  in the transfer of assets.  Payment will be
                                  based on the value of the Employee Account as
                                  of the valuation date occurring after Conoco
                                  receives such proof, pursuant to procedures
                                  established by the Benefit Board, and will be
                                  made in cash and/or promissory notes.

                          d.      When the Sale-Terminee's Employee Account is
                                  transferred to the trustee of the receiving
                                  plan, the entire Employee Account shall be
                                  transferred whether or not the Sale-Terminee
                                  was entitled to withdraw his entire Employee
                                  Account at the time of termination of
                                  employment with Conoco or an Affiliated
                                  Company.

                          e.      After the Sale-Terminee has elected to
                                  transfer his Employee Account and has
                                  terminated employment with Conoco or an
                                  Affiliated Company and prior to the transfer
                                  of his Employee Account to the receiving plan
                                  the following rules shall apply:

                                  If the Sale-Terminee terminates employment
                                  with the purchaser of the business or
                                  facility, he or his beneficiary will be
                                  entitled to his entire Employee Account.

                 2.       If prior to his scheduled termination of employment
                          with Conoco or an Affiliated Company in connection
                          with the sale of a business or facility the
                          Sale-Terminee terminates employment for any reason
                          other than death or disability, Article XII.E.1. and
                          2. shall not apply and the Sale-Terminee election to
                          transfer assets shall be void.





                                    XII - 3
<PAGE>   72
XIII.    RESERVED





                                    XIII - 1
<PAGE>   73
XIV.     ADMINISTRATION

         A.      Trustee

                 Conoco and Merrill Lynch Trust Company of America, a New
                 Jersey Corporation, have entered into a Trust Agreement
                 pursuant to which said trust company is to act as Trustee
                 under the Plan.  Conoco may, without further reference to or
                 action by a Member, an Employee or any affiliate of Conoco
                 participating in the Plan:

                 1.       from time to time enter into such further agreements
                          with the Trustee or other parties and make such
                          amendments to said Trust Agreement or such further
                          agreements, as Conoco Inc. may deem necessary or
                          desirable to carry out the Plan;

                 2.       from time to time designate successor Trustees which
                          in each case shall be a bank or trust company having
                          capital and surplus of not less than $10,000,000;

                 3.       from time to time take such other steps and execute
                          such other instruments as Conoco may deem necessary
                          or desirable to put the Plan into effect or to carry
                          it out.  The Board shall determine the manner in
                          which Conoco shall take any such action; and

                 4.       from time to time by action of its Board of Directors
                          designate or appoint such Investment Managers as the
                          Board deems necessary to manage and invest any
                          portion or all of the Plan assets and by action of an
                          officer of the Company who is a member of the Benefit
                          Board remove such Investment Managers.

         B.      Employee Benefit Plans Board

                 The Board shall create a committee of at least three members,
                 which shall be known as the Employee Benefit Plans Board (Plan
                 Administrator).  The Board shall from time to time designate
                 the members of the Benefit Board, and for each of such
                 members, an alternate, who shall have the full power to act
                 due to the absence or inability to act of such member.  The
                 Benefit Board shall act by a majority of its members, and the
                 action of a majority of the Benefit Board, with or without a
                 meeting, shall be the action of the Benefit Board.  No bond or
                 other security shall be required of any member of the Benefit
                 Board, or alternate, as such other than as may be required by
                 law.  The general administration of the Plan and the
                 responsibility for carrying out the provisions of the Plan
                 shall be placed in the Benefit Board.  The Benefit Board is
                 authorized to allocate such of its fiduciary responsibilities
                 and to designate persons or groups of persons, whether
                 employed by the Company or otherwise, to carry out fiduciary
                 responsibilities under the Plan.  The Trustee shall be subject
                 to the directions of the Benefit Board, and shall comply with
                 such





                                    XIV - 1
<PAGE>   74
                 directions, except with regard to the custody of the assets,
                 the voting with respect to shares held by the Trustee, and the
                 purchase and sale or redemption of securities which shall be
                 Trustee responsibilities.

         C.      Thrift Plan for Retail Employees Regulations

                 The Benefit Board may from time to time prescribe regulations
                 for the administration of the Plan, provided that such
                 regulations are consistent with the provisions hereof.
                 Without limiting the generality of the foregoing, the Benefit
                 Board may adopt such regulations with respect to the signature
                 by a Member and/or the spouse of a Member to any directions or
                 other papers to be signed by Employees and similar matters as
                 the Benefit Board shall determine to be necessary or advisable
                 in view of the laws of any state or states.

         D.      Recognition of Agency for A Member

                 The Trustee need not recognize the agency of any party for a
                 Member unless it shall receive documentary evidence thereof
                 satisfactory to it and thereafter from time to time, as the
                 Trustee may determine, additional documentary evidence showing
                 the continuance of such agency.  Until such time as the
                 Trustee shall receive documentary evidence satisfactory to it
                 of the cessation or modification of any agency, the Trustee
                 shall be entitled to rely upon the continuance of such agency
                 and to deal with the agent as if such agent were the Member.

         E.      Thrift Plan for Retail Employees Audit

                 The independent accountants who audit the books and accounts
                 of Conoco Inc. shall annually examine the records of Conoco
                 and the Benefit Board in respect of the Plan and, on the basis
                 of such examination, make such report to the Trustee as it may
                 request, with copies of the report to the Board and the
                 Benefit Board.  The records of the Trustee and (subject to
                 such report by said independent accountant) the records of
                 Conoco and the Benefit Board shall be conclusive in respect of
                 all matters involved in the administration of the Plan.

         F.      Reporting to Plan Members

                 The Trustee shall, annually in or prior to the month of July
                 of each calendar year, mail to each Plan Member a statement as
                 of the end of the previous year, in such form as the Trustee
                 shall determine, setting forth the Employee Account of such
                 Member based on the fair market value of his Employee Account
                 as of that date.  Such statement shall be deemed to have been
                 accepted as correct unless written notice to the contrary is
                 received by the Trustee within 30 days after the mailing of
                 such statement to the Member.





                                    XIV - 2
<PAGE>   75
         G.      Administrative Liability

                 No member of the Benefit Board or alternate and no director,
                 officer, or Employee of Conoco shall be personally liable for
                 any act or omission to act in connection with the operation or
                 administration of the Plan, except for his own willful
                 misconduct or gross negligence or as may otherwise be provided
                 in Section 410 of the Employee Retirement Income Security Act
                 of 1974 (ERISA).

         H.      Administrative Expense

                 Reasonable expenses of administering the Plan, including, but
                 not limited to, the direct expenses of the Benefit Board, the
                 fees and expenses of the Trustees, the fees of Plan counsel,
                 recordkeeping expenses and transactional costs shall be paid
                 as follows:

                 (a)      Brokerage fees, transfer taxes, investment fees, wrap
                          fees, rebalancing fees and other expenses incident to
                          the purchase, sale and operation of securities and
                          other investments and incident to the administration
                          of Options A. B. C., and D, shall be included in the
                          cost of such securities or investments or deducted
                          from the sale proceeds, as the case may be.

                 (b)      All administrative expenses not specified in
                          paragraph (a) above, shall be paid out of rebates of
                          recordkeeping costs and other discounts in connection
                          with investment vehicles available in the Plan.  If
                          such assets or other discounts are paid to the Plan,
                          any excess remaining after the reasonable
                          administrative expenses of the Plan have been paid
                          shall be allocated to the accounts of all Members in
                          the Plan who have an Employee Account balance greater
                          than zero on an allocation date designated by the
                          Plan Administrator.

                 (c)      The balance of any administrative expenses not paid
                          as described above in paragraphs (a) and (b) of this
                          Article XIV.H., shall be ratably shared by Conoco
                          Inc. and its Affiliated Companies participating in
                          the Plan on such basis as shall be mutually agreed
                          upon, or failing such agreement, as shall be
                          determined by the Trustee.

         I.      Claims by Members

                 The Benefit Board or its delegee shall review all claims for
                 benefits under the Plan which are submitted by a Member in the
                 manner prescribed by the Benefit Board, and shall advise such
                 Member in writing of any denial or partial denial of benefits
                 based on such claims and shall set forth the following:





                                    XIV - 3
<PAGE>   76
                 1.       Specific reasons for such denial or partial denial;

                 2.       Reference to pertinent Plan provisions on which the
                          denial or partial denial is based; and

                 3.       Describe any additional material or information
                          required for claimant to perfect his claim.

                 In the event of a denial or partial denial of such claim, the
                 Member may request the Benefit Board to review such denial or
                 partial denial, provided such review request is submitted to
                 the Benefit Board within 60 calendar days after notice of the
                 denial or partial denial is received by the member.  The
                 Benefit Board will render a written decision of such review to
                 the Member within 60 calendar days following receipt of such
                 review request.

                 In carrying out their responsibilities under the Plan, the
                 Board shall have full and exclusive discretionary authority to
                 interpret the terms of the Plan and to determine all issues
                 concerning eligibility for and entitlement to Plan benefits in
                 accordance with the terms of the Plan.





                                    XIV - 4
<PAGE>   77
XV.      NOTICES AND OTHER COMMUNICATIONS

         A.      Plan Communication to Members

                 All notices, reports, and statements given, made, delivered,
                 or transmitted to a Plan Member shall be deemed duly given,
                 made, delivered, or transmitted when mailed, by such class of
                 mail as the Trustee or the Benefit Board may deem appropriate,
                 with postage prepaid and addressed to the Member at the
                 address last appearing on the books of the Trustee.  A Member
                 may change his address from time to time by written notice in
                 the form prescribed by the Benefit Board.

         B.      Member Communications to the Plan

                 Written directions, notices, and other communications, from
                 Plan Members, to Conoco, the Trustee, or the Benefit Board
                 shall be mailed by first-class mail or delivered to such
                 location as shall be specified in regulations or upon the
                 forms or in the manner prescribed by the Benefit Board and
                 shall be deemed to have been given when received at such
                 location.

         C.      Third Party Communication to the Plan

                 Any notice or communication, other than from a Member,
                 intended for Conoco, one of its affiliates participating in
                 the Plan, the Trustee, or the Benefit Board, may be delivered
                 to an officer of the corporation for whom such notice or
                 communication is intended or to a member of the Benefit Board,
                 as the case may be, at the address hereinafter specified of
                 the party intended, or may be mailed by first- class
                 registered mail, with postage prepaid and addressed to such
                 party at such address.  Any such notice so mailed will be
                 deemed to have been given on the day when received.  All such
                 notices and communications shall be addressed,

                 1.       if intended for Conoco Inc. or the Benefit Board, to:

                          Benefits Administration
                          P. O. Box 1267
                          Ponca City, Oklahoma  74603

                 2.       if intended for an affiliate of Conoco Inc.
                          participating in the Plan, to the principal place of
                          business of such affiliate, or;





                                     XV - 1
<PAGE>   78
                 3.       if intended for the Trustee, to:

                          Merrill Lynch Trust Company of America
                          33 West Monroe Street
                          Suite 2550
                          Chicago, Illinois  60603

                 Conoco, its affiliates participating in the Plan, the Trustee,
                 or the Benefit Board may change the address to which notices
                 and other communications intended for it shall be addressed by
                 written notice of such change to the Trustee, in which event
                 the Trustee shall advise all parties concerned of the change
                 in such manner as the Trustee may deem appropriate.





                                     XV - 2
<PAGE>   79
XVI.     NONASSIGNABILITY

         No benefit under the Plan shall be subject in any manner to
         anticipation, alienation, sale, transfer, assignment, pledge,
         encumbrance or charge, and any attempt so to anticipate, alienate,
         sell, transfer, assign, pledge, encumber, of charge the same shall be
         void, nor shall any such benefit be in any manner liable for or
         subject to the debts, contracts, liabilities, engagements, or torts of
         the person entitled to such benefit.





                                    XVI - 1
<PAGE>   80
XVII.    TERMS OF EMPLOYMENT UNAFFECTED

         Participation in the Plan by a Retail Employee shall in no way affect
         any of Conoco's rights to assign such Employee to a different job or
         position; to change his title, authority, duties, or rate of
         compensation; or to terminate his employment.





                                    XVII - 1
<PAGE>   81
XVIII. CONSTRUCTION

         The Plan shall be governed by and construed in accordance with the
         laws of the State of Texas.  Any interpretation of the Plan by the
         Benefit Board shall be conclusive and may be relied upon by the
         Trustee and all parties in interest.





                                   XVIII - 1
<PAGE>   82
XIX.     MODIFICATION AND TERMINATION

         A.      Method of Modification

                 Conoco, by action of its Board, or by action of the Employee
                 Benefit Plans Board as directed by the Board, may modify the
                 Plan at any time and from time to time or may at any time
                 terminate such Plan.  Any such modification or termination
                 shall be effective at such date as the Board may determine but
                 not earlier than the date on which Conoco shall have given
                 notice of such modification or termination to the Trustee and
                 may be effective as to all affiliates of Conoco, or as to one
                 or more of them, and their respective employees.  The Trustee
                 shall promptly give notice of any such modification or
                 termination to all affiliates of Conoco Inc. affected thereby
                 and their respective employees.  A modification which affects
                 the rights or duties of the Trustee may be made only with the
                 consent of the Trustee.  A modification may affect Employees
                 participating in the Plan at the time thereof as well as
                 future participants but may not diminish the account of any
                 Employee as of the effective date of such modification.

                 No amendment to the Plan shall be effective to the extent it
                 has the effect of decreasing a Participant's accrued benefit.
                 For purposes of this paragraph, a Plan amendment which has the
                 effect of decreasing the Participant's account balance or
                 eliminating an optional form of benefit, with respect to the
                 benefits attributable to service before the amendment shall be
                 treated as reducing an accrued benefit.

                 The procedure for amending this Plan shall be by written
                 action adopting the new or amended Plan language, indicating
                 the effective date of the change, and signed by the members of
                 the Board of Directors or its delegee. The procedure for
                 delegation of the authority to amend the Plan shall be by
                 written delegation naming the title(s) of the delegee(s),
                 giving the effective date of the delegation, and signed by the
                 Board of Directors or its delegee(s).

         B.      Rights of Members As A Result of Modification

                 In the event that any modification of the Plan shall adversely
                 affect the rights of any Employee participating therein as to
                 the use of or withdrawal from his account, such Employee, for
                 a period of 90 days after the effective date of such
                 modification, shall have the option, to be exercised by
                 written notice to the Trustee in form prescribed by the
                 Benefit Board (a copy of which form of notice shall accompany
                 the notice of modification), to withdraw his entire vested
                 Employee Account as of the effective date of such
                 modification, in which event, he shall be ineligible for
                 participation in the Plan, as so modified, for a period of 6
                 full months from such effective date.





                                    XIX - 1
<PAGE>   83
         C.      Merger, Transfer or Consolidation of Plan

                 Conoco, by action of its Board, may at any time, and for any
                 reason, merge, consolidate, or transfer assets and liabilities
                 to another plan, provided that if such merger, consolidation
                 or transfer, or assets and liabilities, occurs after September
                 2, 1974, each Participant in the Plan would (if the Plan then
                 terminated) receive a benefit immediately after such merger,
                 consolidation, or transfer of assets and liabilities, which is
                 equal to or greater than the benefit to which he would have
                 been entitled to receive immediately before the merger,
                 consolidation, or transfer (if the Plan had then terminated).





                                    XIX - 2
<PAGE>   84
XX.      EFFECTIVE DATE

         A.      Board of Directors' Approval

                          The Plan shall not go into effect unless the Board or
                          its delegee shall duly adopt such Plan.





                                     XX - 1
<PAGE>   85
XXI.     OPERATION OF THE PLAN AS A TOP-HEAVY PLAN

         If it is determined that the Plan is a top-heavy plan, within the
         meaning of Section 416(g) of the Code, for any Plan Year, this Article
         will apply for such Plan Year, any provisions to the contrary
         notwithstanding.

         A.      Minimum Vesting

                 Each Participant shall have a nonforfeitable right to a
                 percentage of his accrued benefit derived from Company
                 Contributions, as determined in accordance with the following
                 table:

<TABLE>
<CAPTION>
                                      Years of                                   Nonforfeitable
                                       Service                                    0 Percentage
                                  <S>                                                <C>
                                  2 but less than 3                                   20%
                                  3 but less than 4                                   40%
                                  4 but less than 5                                   60%
                                  5 but less than 6                                   80%
                                  6 or more                                          100%
</TABLE>

                 Periods of service disregarded under Article II.VV.2.b shall
                 be disregarded for purposes of the preceding sentence.  This
                 Article XXI.A shall not apply if the Participant's
                 nonforfeitable percentage of accrued benefit derived from
                 Company Contributions would be greater if determined under
                 Article II.VV.  A Participant during any Plan Year in which
                 the Plan is determined to be top-heavy who has completed three
                 years of service, as determined pursuant to applicable
                 Treasury Regulations, may irrevocably elect to have this
                 Article XXI.A apply to all subsequent Plan Years in which the
                 Plan is not top-heavy.

         B.      Minimum Contributions

                 1.       Contributions by Conoco, including Before Tax Savings
                          under the Plan, in aggregation with all Defined
                          Contribution Plans required to be aggregated under
                          Code Section 416(g)(2)(A)(i), on behalf of each
                          Participant who has not separated from service at end
                          of the Plan Year and is a non-key Employee, shall not
                          be less than 3 percent of his Defined Compensation.

                 2.       Notwithstanding Article XXI.B.1, no minimum
                          contribution shall be required for any Participant
                          who receives the minimum benefit under a Defined
                          Benefit Plan of the Corporate Employer that is
                          determined to be top-heavy for a year ending in a
                          Plan Year for which the Plan is determined to be
                          top-heavy.





                                    XXI - 1
<PAGE>   86
         C.      Effect on Limitation on Annual Additions

                 For any Plan Year in which the Plan is top-heavy, the combined
                 limitation described in Article VI.A.2.  shall be applied by
                 substituting "1.0" for "1.25" wherever it appears in Article
                 II.M. and P.

         D.      Definitions - For purposes of these top-heavy provisions, the
                 following definitions shall apply:

                 (a)      Key Employee shall mean any Employee or former
                          Employee (and the beneficiaries of such Employee) who
                          at any time during the determination period was an
                          officer of the employer if such individual's annual
                          compensation exceeds 50 percent of the dollar
                          limitation under section 415(b)(1)(A) of the  Code,
                          an owner (or considered an owner under section 318 of
                          the Code) of one of the ten largest interests in the
                          employer if such individual's compensation exceeds
                          100 percent of the dollar limitation under section
                          415(c)(1)(A) of the Code, a 5 percent owner of the
                          employer, or a 1-percent owner of the employer who
                          has an annual compensation of more than $150,000.
                          Compensation shall mean compensation as defined in
                          section 415(c)(3) of the Code but specifically
                          including amounts contributed by the employer
                          pursuant to a salary reduction agreement.

                 (b)      Top-heavy Ratio:  The Top-heavy Ratio for any
                          Required or Permissive Aggregation Group as
                          appropriate is a fraction, the numerator of which is
                          the sum of the present value of accrued benefits
                          under the aggregate Defined Benefit Plan or plans for
                          all Key Employees, as of the Determination Date(s)
                          (including any part of any accrued benefit
                          distributed in the 5-year period ending on the
                          Determination Date(s)) and the sum of account
                          balances under the aggregated Defined Contribution
                          Plan or plans for all Key Employees as of the
                          Determination Date(s), and the denominator of which
                          is the sum of the present value of accrued benefits
                          under the Defined Benefit Plan or plans for all
                          participants, as of the Determination Date(s)
                          (including any part of any accrued benefit
                          distributed in the 5-year period ending on the
                          Determination Date(s)) and the account balances under
                          the aggregated Defined Contribution Plan or Plans for
                          all participants as of the Determination Date(s), all
                          determined in accordance with section 416 of the Code
                          and the regulations thereunder.  The account balances
                          under a Defined Contribution Plan in both the
                          numerator and denominator of the Top-heavy Ratio are
                          increased for any distribution of an account balance
                          made in the 5-year period ending on the Determination
                          Date.

                          The value of account balances and the present value
                          of accrued benefits will be determined as of the most
                          recent Valuation Date that falls within or ends with
                          the 12-month period ending on the Determination Date,
                          except as provided in section 416 of the Code and the
                          regulations thereunder for the





                                    XXI - 2
<PAGE>   87
                          first and second plan years of a Defined Benefit
                          Plan.  The account balances and accrued benefits of a
                          Participant (1) who is not a Key Employee but who was
                          a Key Employee in a prior year, or (2) who has not
                          been credited with at least one Hour of Service with
                          any employer maintaining the Plan at any time during
                          the 5-year period ending on the Determination Date
                          will be disregarded.  The calculation of the
                          Top-heavy Ratio, and the extent to which
                          distributions, rollovers, and transfers are taken
                          into account will be made in accordance with section
                          416 of the Code and the regulations thereunder.
                          Deductible employee contributions, if any, will not
                          be taken into account for purposes of computing the
                          Top-heavy Ratio.  When aggregating plans the value of
                          account balances and accrued benefits will be
                          calculated with reference to the Determination Dates
                          that fall within the same calendar year.

                          The accrued benefit of a Participant other than a Key
                          Employee shall be determined under (a) the method, if
                          any, that uniformly applies for accrual purposes
                          under all Defined Benefit Plans maintained by the
                          employer, or (b) if there is no such method, as if
                          such benefit accrued not more rapidly than the
                          slowest accrual rate permitted under the fractional
                          rule of section 411(b)(1)(C) of the Code.

                 (c)      Aggregation group:  A Required Aggregation Group is
                          (1) each qualified plan of the employer in which at
                          least one Key Employee participates or participated
                          at any time during the determination period
                          (regardless of whether the plan has terminated), and
                          (2) any other qualified plan of the employer which
                          enables a plan described in (1) to meet the
                          requirements of sections 401(a)(4) or 410 of the
                          Code.  A Permissive Aggregation Group is  the
                          Required Aggregation Group of plans plus any other
                          plan or plans of the employer which, when considered
                          as a group with the Required Aggregation Group, would
                          continue to satisfy the requirements of sections
                          401(a)(4) and 410 of the Code.

                 (d)      Determination Date.  The determination date for any
                          Plan Year shall be December 31 of the preceding Plan
                          Year.

                 (e)      Valuation Date.  The valuation date applicable to the
                          determination date for any Plan Year shall be
                          December 31 of the preceding Plan Year.

                 (f)      Top-heavy Plan.  This Plan is a Top-heavy plan if any
                          of the following conditions exist:

                          (i)     If the Top-heavy Ratio for this Plan exceeds
                                  60 percent and this Plan is not part of any
                                  Required Aggregation Group or Permissive
                                  Aggregation Group of plans.





                                    XXI - 3
<PAGE>   88
                          (ii)    If this Plan is a part of a Required
                                  Aggregation Group of plans but not part of a
                                  Permissive Aggregation Group and the
                                  Top-heavy Ratio for the group of plans
                                  exceeds 60 percent.

                          (iii)   If this Plan is a part of a Required
                                  Aggregation Group and part of a Permissive
                                  Aggregation Group of plans and the Top-heavy
                                  Ratio for the Permissive Aggregation Group
                                  exceeds 60 percent.





                                    XXI - 4
<PAGE>   89
XXIII.   ROLLOVERS AND TRUST TO TRUST TRANSFERS

         A.      Subject to the requirements of the Code, the Plan and the
                 Trustee may accept for:

                 1.       A Member with an Employee Account who, while employed
                          by the Company or an Affiliated Company, has taken
                          normal, early or incapacity retirement pursuant to
                          Section 4 (2)(a), (b), or (c) or Section 23.(4)(a),
                          (b) or (c) of the Retirement Plan of Conoco Inc., or
                          who has separated from service from the Company with
                          10 years of service after attaining age 50, a
                          rollover of assets received from the Retirement Plan
                          of Conoco Inc., or a rollover of assets received from
                          the Conoco Employee Stock Ownership Plan.

                 2.       A Member with an Employee Account who, while employed
                          by the Company or an Affiliated Company, has taken,
                          after December 31, 1987, normal, early or incapacity
                          retirement pursuant to Section 3. (2) (a), (b), or
                          (c) or Section 23. (4) (a), (b) or (c) of the
                          Retirement Plan of Conoco Inc. or who has separated
                          from service from the Company with 10 years of
                          service after attaining age 50, or the Spouse
                          Beneficiary Member of such a deceased Member who has
                          an Employee Account as a result of being named the
                          beneficiary of such deceased Member, a rollover of
                          assets received from the Retirement Plan of Conoco
                          Inc., and/or a defined benefit plan maintained by an
                          affiliated corporation, and a trust-to-trust transfer
                          of assets in or a rollover of assets received from
                          the Conoco Employee Stock Ownership Plan and/or the
                          Du Pont Tax Reform Act Stock Ownership Plan;

                 3.       A Member who, while employed by the Company or an
                          Affiliated Company, has taken, after December 31,
                          1992, normal, early or incapacity retirement pursuant
                          to Section 4. (s) (a), (b), or (c) or Section 23. (4)
                          (a), (b) or (c) of the Retirement Plan or who has
                          separated from service from the Company with 10 years
                          of service after attaining age 50, or a Spouse
                          Beneficiary Member, a Participant and an Employee,
                          who would be eligible to be a Participant, except
                          that he has not yet satisfied the requirements of
                          Article III.A.2., 3.or 4. of the Plan, while employed
                          by the Company, a rollover or trust-to-trust transfer
                          of assets received from a defined contribution or
                          defined benefit plan or assets received from an
                          individual retirement account, as described in Code
                          Section 408 (d) (3) (A) (ii).

                 4.       A Member with an Employee Account who was employed by
                          the Company in connection with the acquisition of a
                          business or facility by the Company, while employed
                          by the Company, a trust- to-trust transfer of assets
                          in cash from the trustees of a qualified defined
                          contribution plan, as provided for in an agreement
                          between the Company, and the Seller of the business
                          or facility maintaining or contributing to the plan
                          from which the assets are to received.  The cash
                          received will be deposited in the Fixed Income
                          Account





                                   XXIII - 1
<PAGE>   90
                          Fund (Option B.) and allocated to each Employee
                          Account based on the value of a unit  on the day in
                          which the transfer takes place.  Any and all assets
                          so transferred will not be eligible for matching
                          Company contributions under Article V.A.

                          Service with the seller by an Employee may be
                          recognized for purposes of eligibility in this Plan;
                          participation in the seller's plan by an Employee who
                          enrolls in this Plan and whose entire account assets
                          are transferred to this Plan, may be recognized for
                          purposes of vesting in future benefits accrued under
                          this Plan.  All assets of an Employee transferred to
                          this Plan pursuant to Article XXIII.4. shall be
                          immediately vested.

                 5.       Any person, a trust-to-trust transfer of assets in Du
                          Pont common stock from the trustee of the Conoco
                          Employee Stock Ownership Plan at the direction of the
                          sponsor of the Conoco Employee Stock Ownership Plan.

                 Any assets transferred or rolled over must be in the form of
                 cash and/or Du Pont or Conoco common stock.  Any assets rolled
                 over must be rolled over as provided in Code Section 402 (a)
                 (b) and must have been received by the Member or a Spouse
                 Beneficiary Member in a qualified distribution from a
                 qualified defined contribution plan, a qualified defined
                 benefit plan or an individual retirement account as described
                 in Code Section 408 (d) (3) (A) (ii).  Only taxable amounts
                 may be rolled over under this Article XXIII.  The cash
                 received will be allocated to the Investment Options set forth
                 in Article VII.C. of the Plan pursuant to the administrative
                 rules adopted by the Plan Administrator.  The Du Pont common
                 stock received will be allocated to Option A. of Article
                 VII.C. of the Plan and shall remain there until it may be
                 transferred to the Investment Options set forth in Article VII
                 of the Plan pursuant to the administrative rules adopted by
                 the Plan Administrator.

         B.      This Article XXIII.B. applies to distributions made on or
                 after January 1, 1993.

                 1.       Notwithstanding any provision of this Plan to the
                          contrary that would otherwise limit a distributee's
                          election under this Article XXIII.B., a distributee
                          may elect, at any time and in the manner prescribed
                          by the Benefit Board, to have any portion of an
                          eligible rollover distribution paid directly to an
                          eligible retirement plan specified by the distributee
                          in a direct rollover.

                 2.       Definitions

                          a.      An eligible rollover distribution is any
                                  distribution of all or any portion of the
                                  balance to the credit of the distributee,
                                  except that an eligible rollover distribution
                                  does not include:





                                   XXIII - 2
<PAGE>   91
                                  i.       any distribution that is one of a
                                           series of substantially equal
                                           periodic payments made (not less
                                           frequently than annually) for the
                                           life (or life expectancy) of the
                                           distributee or the joint lives (or
                                           joint life expectancies) of the
                                           distributee and distributee's
                                           designated beneficiary, or for a
                                           period of ten years or more;

                                  ii.      any distribution to the extent such
                                           distribution is required under
                                           Section 401(a)(9) of the Code; and

                                  iii.     the portion of any distribution that
                                           is not includible in gross income
                                           (determined without regard to the
                                           exclusion for net unrealized
                                           appreciation with respect to
                                           employer securities).

                          b.      An eligible retirement plan is an individual
                                  retirement account described in Section
                                  408(a) of the Code, an annuity plan described
                                  in Section 403(a) of the Code, or a qualified
                                  trust described in Section 401(a) of the Code
                                  that accepts the distributee's eligible
                                  rollover distribution.  However, in the case
                                  of an eligible rollover distribution to the
                                  surviving spouse, an eligible retirement plan
                                  is an individual retirement account or
                                  individual retirement annuity.

                          c.      A distributee includes an employee or a
                                  former employee (who became a Member of the
                                  Plan).  In addition, the employee's or former
                                  employee's surviving spouse and the
                                  employee's or former employee's spouse or
                                  former spouse who is the alternate payee
                                  under a qualified domestic relations order as
                                  defined in Section 414(p) of the Code, are
                                  distributees with regard to the interest of
                                  the spouse or former spouse.

                          d.      A direct rollover is a payment by this Plan
                                  to the eligible retirement plan specified by
                                  the distributee.





                                   XXIII - 3
<PAGE>   92
XXIV.    MISCELLANEOUS

         A.      USERRA Compliance

                 Notwithstanding any provision of the Plan to the contrary,
                 contributions, benefits, Plan loan repayment suspensions and
                 service credit with respect to qualified military service will
                 be provided in accordance with Section 414(u).

         B.      Failure to Qualify Initially

                 If application for initial qualification of the Plan is made
                 by the time prescribed by law for filing the Plan Sponsor's
                 return for the taxable year in which the Plan is adopted (or
                 such later date as the Secretary of the Treasury may
                 prescribe) and it is determined that the Plan or Trust does
                 not initially qualify under Sections  401 or 501, all assets
                 then held under the Plan will be returned to the Participating
                 Employers within one year after such determination or refusal
                 to issue a determination.  Upon such distribution, the Plan
                 will be considered to be rescinded and to be of no force or
                 effect.





                                    XXIV - 1
<PAGE>   93
                                   APPENDIX A


Aim Constellation A
Aim Value A
Fidelity
Fidelity Equity-Income
Fidelity Growth & Income
Fidelity Low-Priced Stock
Fidelity Magellan
Franklin Balance Sheet Investment
Franklin Growth I
Franklin Small Cap Growth
Hotchkis & Wiley International
Janus Enterprise
Janus Mercury
MFS Research
MFS Total Return A
Merrill Lynch Basic Value
Merrill Lynch Capital
Merrill Lynch Global Holdings
Merrill Lynch Growth A
Merrill Lynch International Stock Index Fund
Merrill Lynch Large Company Stock Index Fund
Merrill Lynch Small Company Stock Index Fund
Templeton Foreign I
Templeton Growth I





                                      A-1

<PAGE>   1
                                                                    EXHIBIT 15.1



Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C. 20549

Ladies and Gentlemen:

         We are aware that Conoco Inc., a Delaware corporation ("Conoco"), has
incorporated by reference in this Registration Statement on Form S-8 our report
dated September 28, 1998 (issued pursuant to the provisions of Statement on
Auditing Standards No. 71) included in Conoco's prospectus dated October 21,
1998 as filed with the Securities and Exchange Commission pursuant to Rule
424(b) under the Securities Act of 1933 (the "Prospectus"). In addition, we are
aware that Conoco has incorporated by reference in this Registration Statement
on Form S-8 our report dated October 21, 1998 on the pro forma combined balance
sheet as of June 30, 1998 and the pro forma combined statements of income for
the six-month periods ended June 30, 1997 and 1998 included in the Prospectus.
We are also aware of our responsibilities under the Securities Act of 1933.

Yours very truly,

PRICEWATERHOUSECOOPERS LLP

Houston, Texas
December 16, 1998




<PAGE>   1

                                                                    EXHIBIT 23.1



                       CONSENT OF INDEPENDENT ACCOUNTANTS

We hereby consent to the incorporation by reference in this Registration
Statement on Form S-8 of our reports dated July 24, 1998 and October 21, 1998
relating to the combined financial statements and the pro forma combined
statement of income, respectively, of Conoco, which appear in the prospectus of
Conoco Inc. dated October 21, 1998 as filed with the Securities and Exchange
Commission pursuant to Rule 424(b) under the Securities Act of 1933.


PRICEWATERHOUSECOOPERS LLP

Houston, Texas
December 16, 1998



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