USX CORP
DEF 14A, 2000-03-13
PETROLEUM REFINING
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<PAGE>
                            SCHEDULE 14A INFORMATION

                  Proxy Statement Pursuant to Section 14(a) of
            the Securities Exchange Act of 1934 (Amendment No.    )

    Filed by the Registrant /X/
    Filed by a party other than the Registrant / /

    Check the appropriate box:
    / /  Preliminary Proxy Statement
    / /  Confidential, for Use of the Commission Only (as permitted by Rule
         14a-6(e)(2))
    /X/  Definitive Proxy Statement
    / /  Definitive Additional Materials
    / /  Soliciting Material Pursuant to Section 240.14a-11(c) or Section
         240.14a-12
                               USX Corporation
- --------------------------------------------------------------------------------
                (Name of Registrant as Specified In Its Charter)

- --------------------------------------------------------------------------------
    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

/X /  No fee required

/ /  Fee computed on table below per Exchange Act Rules 14a-6(i)(1)
     and 0-11

    (1) Title of each class of securities to which transaction applies:

        ------------------------------------------------------------------------
    (2) Aggregate number of securities to which transaction applies:

        ------------------------------------------------------------------------
    (3) Per unit price or other underlying value of transaction computed
        pursuant to Exchange Act Rule 0-11 (set forth the amount on which the
        filing fee is calculated and state how it was determined):

        ------------------------------------------------------------------------
    (4) Proposed maximum aggregate value of transaction:

        ------------------------------------------------------------------------
    (5) Total fee paid:

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

/ / Fee paid previously with preliminary materials.

/ / Check box if any part of the fee is offset as provided by Exchange Act Rule
    0-11(a)(2) and identify the filing for which the offsetting fee was paid
    previously. Identify the previous filing by registration statement number,
    or the Form or Schedule and the date of its filing.

    (1) Amount Previously Paid:

        ------------------------------------------------------------------------
    (2) Form, Schedule or Registration Statement No.:

        ------------------------------------------------------------------------
    (3) Filing Party:

        ------------------------------------------------------------------------
    (4) Date Filed:

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


<PAGE>
                   USX Corporation

[LOGO]             NOTICE OF ANNUAL MEETING OF STOCKHOLDERS
                   AND PROXY STATEMENT

                   2000

                   Marathon Group Common Stock
                   U.S. Steel Group Common Stock









                   TUESDAY, APRIL 25, 2000
                   10:00 A.M., CENTRAL DAYLIGHT TIME




                   Wynfrey Ballroom
                   The Wynfrey Hotel at Riverchase Galleria
                   1000 Riverchase Galleria
                   Birmingham, Alabama 35244



                   PLEASE VOTE PROMPTLY EITHER BY:
                   - telephone,
                   - the Internet, or
                   - marking, signing and returning your proxy card.


<PAGE>

                                  [LETTERHEAD]


March 13, 2000


Dear USX Stockholder,

We will hold our 2000 annual meeting of stockholders in the Wynfrey Ballroom of
The Wynfrey Hotel at Riverchase Galleria, 1000 Riverchase Galleria, Birmingham,
Alabama, on Tuesday, April 25, 2000 at 10:00 A.M., Central Daylight Time.

We will elect directors and independent accountants at the meeting.
The board of directors has nominated five of our 15 directors for re-election
this year. They are all Class I directors, which means their terms will
expire at the 2003 annual meeting. You can read about them, and about the
other directors who will continue in office, on pages 12-17 of the proxy
statement. All the nominees except one have been previously elected by the
stockholders.

We hope you will vote either by telephone or over the Internet or by marking,
signing and returning your proxy card as soon as possible, whether or not you
plan to attend the meeting.

Sincerely,

/s/ Thomas J. Usher





                       Marathon Group - U. S. Steel Group
<PAGE>


TABLE OF CONTENTS

<TABLE>
<S>                                                                    <C>
Notice of Annual Meeting of Stockholders..............................  4

Proxy Statement.......................................................  5

  Questions and Answers...............................................  5

  The Board of Directors..............................................  7

  Proposals of the Board

    PROPOSAL NO. 1
    ELECTION OF DIRECTORS............................................. 11
    Nominees for Director............................................. 12
    Continuing Directors.............................................. 14

    PROPOSAL NO. 2
    ELECTION OF INDEPENDENT ACCOUNTANTS............................... 17

Security Ownership.................................................... 18

Executive Compensation and Other Information.......................... 20

</TABLE>


                                                                               3
<PAGE>

     NOTICE OF ANNUAL MEETING OF STOCKHOLDERS
     on April 25, 2000




     We will hold our 2000 annual meeting of stockholders in the Wynfrey
     Ballroom of The Wynfrey Hotel at Riverchase Galleria, 1000 Riverchase
     Galleria, Birmingham, Alabama 35244 on Tuesday, April 25, 2000 at
     10:00A.M., Central Daylight Time, in order to:

     - elect five Class I directors,
     - elect independent accountants for 2000, and
     - transact any other business that properly comes before the meeting.

     You are entitled to vote at the meeting if you were an owner of record of
     either USX-Marathon Group or USX-U. S. Steel Group common stock at the
     close of business on February 25, 2000. If your ownership is through a
     broker or other intermediary, you will need to have proof of your
     stockholdings in order to be admitted to the meeting. A recent account
     statement, letter or proxy from your broker will suffice.

     By order of the Board of Directors,

     Dan D. Sandman
     Secretary




     Dated: March 13, 2000











     USX Corporation
     600 Grant Street
4    Pittsburgh, PA 15219-4776
<PAGE>


PROXY STATEMENT




WE HAVE SENT YOU THIS PROXY STATEMENT BECAUSE THE BOARD OF DIRECTORS IS ASKING
YOU TO GIVE YOUR PROXY (THAT IS, THE AUTHORITY TO VOTE YOUR SHARES) TO OUR PROXY
COMMITTEE SO THEY MAY VOTE YOUR SHARES ON YOUR BEHALF AT OUR ANNUAL MEETING OF
STOCKHOLDERS. The members of the proxy committee are Thomas J. Usher, Paul J.
Wilhelm and Robert M. Hernandez. They will vote your shares as you instruct.

We will hold the meeting on April 25, 2000 in the Wynfrey Ballroom of The
Wynfrey Hotel at Riverchase Galleria, 1000 Riverchase Galleria, Birmingham,
Alabama. The proxy statement contains information about the matters being voted
on and other information that may be helpful to you.

We began the mailing of the proxy statement, the proxy card and the 1999 annual
reports on or about March 13, 2000.

QUESTIONS AND ANSWERS
- -------------------------------------------------------------------------------
- - WHO MAY VOTE?

You may vote if you were a holder of either USX-Marathon Group or USX- U.S.
Steel Group common stock at the close of business on February 25, 2000.

- - WHAT MAY I VOTE ON?
You may vote on:
     -    the election of five nominees to serve as Class I directors and
     -    the election of PricewaterhouseCoopers LLP as our independent
          accountants.

- - HOW DOES THE BOARD RECOMMEND I VOTE?
The board recommends that you vote:
     -    FOR each of the nominees for director and
     -    FOR the election of PricewaterhouseCoopers LLP as independent
          accountants for 2000.

- - HOW DO I VOTE?
You may vote by telephone or over the Internet by following the instructions on
the enclosed proxy card (or, if you own your shares through a broker or other
intermediary, the enclosed voting instruction card). You may also vote by
marking, signing and dating the enclosed proxy card or voting instruction card,
and returning it in the prepaid envelope. The proxy committee will vote your
shares in accordance with your directions. If you return a proxy card but do not
mark the boxes showing how you wish to vote, the proxy committee will vote your
shares FOR each proposal, but only if you have signed and dated the card.
Unsigned proxy cards will not be voted at all. If you are a stockholder of
record (that is, if you are registered on our books), you may also vote in
person by attending the meeting.

- - MAY I CHANGE MY VOTE?
If you are a stockholder of record, you may change your vote or revoke your
proxy at any time before your shares are voted at the meeting by:
     -    voting again by telephone or over the Internet,
     -    sending us a proxy card dated later than your last vote,
     -    notifying the Secretary of USX in writing, or
     -    voting at the meeting.

- - WHAT IS THE VOTING RELATIONSHIP BETWEEN THE TWO CLASSES OF STOCK?
Both classes of USX common stock _ USX-Marathon Group Common Stock and
USX-U.S. Steel Group Common Stock _ will be voted together as a single class
on all matters voted on at the meeting. Each share of Marathon stock will be
entitled to one vote and each share of U.S. Steel stock will be entitled to
1.005 votes. We calculated the number of votes to which a share of U.S. Steel
stock is entitled by using a formula described


                                                                               5
<PAGE>

in USX's Restated Certificate of Incorporation. It is based on the ratio of the
market value of one share of U.S. Steel stock to one share of Marathon stock
over the 20 business-day period ending on February 18, 2000.

- - HOW MANY OUTSTANDING SHARES ARE THERE?
At the close of business on February 25, 2000, which is the record date for
the meeting, there were 311,767,687 shares of Marathon stock (representing
311,767,687 votes) and 88,398,085 shares of U.S. Steel stock (representing
88,840,075 votes) outstanding.

- - HOW BIG A VOTE DO THE PROPOSALS NEED IN ORDER TO BE ADOPTED?
Directors are elected by a plurality of the votes of the shares present in
person at the meeting or represented by proxy and entitled to vote; that is,
those receiving the most votes are elected, even with less than a majority.
Independent accountants are elected by a majority of the votes of the shares
present in person at the meeting or represented by proxy and entitled to
vote. Abstentions are counted as votes present and entitled to vote and have
the same effect as votes against a proposal. Broker non-votes are not counted
as either votes for or votes against a proposal. Both abstentions and broker
non-votes are counted in determining that a quorum is present for the meeting.

- - WHAT ARE BROKER NON-VOTES?
The New York Stock Exchange permits brokers to vote their customers' shares
on routine matters when the brokers have not received voting instructions
from their customers. The election of directors and the election of
independent accountants are examples of routine matters on which brokers may
vote in this way. Brokers may not vote their customers' shares on non-routine
matters such as mergers and contested proposals unless they have received
voting instructions from their customers. Non-voted shares on non-routine
matters are broker non-votes.

- - WHAT CONSTITUTES A QUORUM?
Under our by-laws, a quorum is one-third of the voting power of the
outstanding shares of stock entitled to vote.

- - WILL MY VOTE BE CONFIDENTIAL?
All voting records which identify stockholders are kept permanently
confidential except as necessary to meet legal requirements and in other
limited circumstances such as proxy contests. The vote tabulators, who are
USX employees, and the inspector of election, who is independent, are
required to execute confidentiality agreements.

- - HOW WILL VOTING BE CONDUCTED ON OTHER MATTERS RAISED AT THE MEETING?
If any matters are presented at the meeting other than the proposals on the
proxy card, the proxy committee will vote on them using their best judgment.
Your signed proxy card, or your telephone or Internet vote, gives them the
authority to do this. Under our by-laws, notice of any matter to be presented
by a stockholder for a vote at the meeting must have been received by our
corporate secretary on or after December 24, 1999 and no later than January
23, 2000, and it must have been accompanied by certain information about the
stockholder presenting it. We have not received notice of any matter to be
presented other than those on the proxy card.

- - WHEN MUST SHAREHOLDER PROPOSALS BE SUBMITTED FOR THE 2001 ANNUAL MEETING?
Shareholder proposals submitted for inclusion in our 2001 proxy statement
must be received in writing by our corporate secretary no later than 5:00
P.M. Eastern Time on November 13, 2000. Shareholder proposals submitted
outside the process for inclusion in the proxy statement must be received
from stockholders of record on or after December 28, 2000 and no later than
January 27, 2001 and must be accompanied by certain information about the
stockholders making the proposals, in accordance with our by-laws.


6
<PAGE>

                   THE BOARD OF DIRECTORS




                   Under our by-laws and the laws of Delaware, USX's state of
                   incorporation, the business and affairs of USX are managed
                   under the direction of the board of directors. The board met
                   eight times in 1999. The directors spend considerable
                   time preparing for board and committee meetings, and they
                   attend as many meetings as possible. In 1999, their
                   attendance averaged 93 percent. The board has five principal
                   committees, all the members of which are non-employee
                   directors. The table below shows the current committee
                   memberships of each director and the number of meetings that
                   each committee held in 1999.


<TABLE>
<CAPTION>

                                                                      ORGANIZATION
                                                                      AND CORPORATE
BOARD COMMITTEE                          AUDIT       COMPENSATION      GOVERNANCE           PUBLIC POLICY      COMMITTEE ON
MEMBERSHIPS        DIRECTOR            COMMITTEE       COMMITTEE       COMMITTEE              COMMITTEE      FINANCIAL POLICY
<S>                <C>                 <C>           <C>              <C>                   <C>              <C>
                   ----------------------------------------------------------------------------------------------------------
                   Neil A. Armstrong                       X                                       X                 X
                   Jeanette G. Brown       X                                X                      X*
                   ----------------------------------------------------------------------------------------------------------
                   J. Gary Cooper          X                                                       X                 X
                   Charles A. Corry                                         X                      X                 X
                   ----------------------------------------------------------------------------------------------------------
                   Charles R. Lee                          X                X                                        X*
                   Paul E. Lego            X                                X                                        X
                   ----------------------------------------------------------------------------------------------------------
                   Ray Marshall            X                                                       X                 X
                   John F. McGillicuddy    X                                X                                        X
                   ----------------------------------------------------------------------------------------------------------
                   Seth E. Schofield                       X*               X                      X
                   John W. Snow            X*              X                                                         X
                   Douglas C. Yearley      X               X                X*
                   ----------------------------------------------------------------------------------------------------------
                   Number of Meetings
                   in 1999                 5               5                5                      4                 4
                   ----------------------------------------------------------------------------------------------------------
</TABLE>
                   * Chairman

- -------------------------------------------------------------------------------
AUDIT COMMITTEE    The Audit Committee is, among other things, responsible for:
                   - ensuring the integrity of our financial reports,
                   - recommending to the board the independent accountants to be
                     nominated for election by the stockholders,
                   - reviewing the independence of the independent accountants,
                   - reviewing the scope of the audit activities of the
                     independent accountants and our internal auditors,
                   - providing direction to the internal audit staff and the
                     independent accountants,
                   - approving the independent accountants' audit fee,
                   - reviewing audit results,
                   - reviewing and approving the annual financial statements,
                     the annual reports to stockholders, and the Annual Report
                     on Form 10-K filed with the Securities and Exchange
                     Commission,
                   - determining that appropriate controls are in place to
                     ensure that we operate in accordance with our procedures
                     and codes of conduct,
                   - reviewing compliance with our business conduct policies,
                   - reviewing significant accounting, auditing and Securities
                     and Exchange Commission pronouncements,
                   - reviewing:
                     -- matters pertaining to potentially divergent interests,
                        if any, between the holders of the two classes of common
                        stock,


                                                                               7
<PAGE>

                     -- our policies and practices with respect to the two
                        business groups, and
                     -- the board's performance of its fiduciary duties to both
                        classes of stockholders, and
                   - reporting annually to the board on the adequacy of the
                     committee's charter.

- -------------------------------------------------------------------------------
COMPENSATION       The Compensation Committee is responsible for:
COMMITTEE          - making recommendations to the board on all matters of
                     policy and procedures relating to executive compensation,
                   - approving the salaries of officers (other than the
                     officer-directors, whose salaries are approved by the
                     board),
                   - administering the Annual Incentive Compensation Plan and
                     the Senior Executive Officer Annual Incentive Compensation
                     Plan, and
                   - administering the plans under which long-term incentives
                     are granted and approving grants of options, stock
                     appreciation rights and restricted stock under those plans.
                   The committee is also authorized to:
                   - adopt and amend employee benefit plans,
                   - review the activities of United States Steel and Carnegie
                     Pension Fund as administrator of certain benefit plans, and
                   - make recommendations to the board concerning policy matters
                     relating to employee benefits.
- -------------------------------------------------------------------------------
ORGANIZATION AND   The Organization and Corporate Governance Committee:
CORPORATE          - makes recommendations to the board concerning the
GOVERNANCE           appropriate size and composition of the board, including
COMMITTEE            -- candidates for election as directors,
                     -- the composition and functions of board committees,
                     -- the compensation of non-employee directors, and
                     -- all matters relating to the development and effective
                        functioning of the board,
                   - confers with management concerning plans for succession to
                     executive management positions,
                   - assesses and makes recommendations concerning overall
                     corporate governance to the extent specific matters are not
                     the assigned responsibility of other board committees, and
                   - considers nominees recommended by stockholders for election
                     as directors.

                   In recommending candidates for election as directors, the
                   committee, among other considerations, studies the
                   composition of the board and tries to identify candidates
                   with broad knowledge and experience in business and society
                   in general. Recommendations of candidates by stockholders of
                   record should be sent, together with the nominee's
                   qualifications and consent to be considered as a nominee, to
                   the Secretary of USX for presentation to the committee.


8
<PAGE>


PUBLIC POLICY      The Public Policy Committee reviews and makes recommendations
COMMITTEE          to the board concerning corporate policy related to:
                   - community and governmental relations,
                   - codes of conduct,
                   - environmental, safety and health matters,
                   - investor relations,
                   - trade matters, and
                   - other broad social, political and public issues.

- -------------------------------------------------------------------------------
COMMITTEE ON       The Committee on Financial Policy provides oversight with
FINANCIAL POLICY   respect to the appropriate capital structure and financial
                   policies of USX. Its key responsibility in that role is to
                   make recommendations to the board concerning dividends. The
                   board has also delegated to the committee the authority to:
                   - approve financings by USX (except financings which involve
                     the issuance of common stock), including the recommendation
                     of action to subsidiaries, partnerships and joint ventures,
                   - authorize loans to outside entities, guarantees by USX of
                     the credit of others, and other uses of USX credit, and
                   - approve USX's funding policy for its pension and other
                     post-employment benefit plans.

                   In addition, the committee is responsible for reviewing the
                   performance of United States Steel and Carnegie Pension Fund
                   as investment manager and/or trustee of our employee benefit
                   plans. It also receives reports and makes recommendations to
                   the board on various financial matters.


                                                                               9

<PAGE>

                   COMPENSATION OF DIRECTORS

                   Our by-laws require that each non-employee director be
                   paid allowances and attendance fees as the board may from
                   time to time determine. Directors who are employees of
                   USX receive no compensation for their service on the
                   board. We pay our non-employee directors as follows:

<TABLE>
<S>                                               <C>
Annual Retainer                                   $60,000

Committee Membership Fee                          $ 5,000 ($6,000 for committee chairmen)

Meeting Fee (for each board or committee meeting) $ 1,600
- -----------------------------------------------------------------------------------------
</TABLE>

                   Under our Deferred Compensation Plan for Non-Employee
                   Directors, directors may defer some or all of their
                   annual retainers in the form of Common Stock Units or
                   cash. Each of our directors has elected to defer at least
                   half of his or her retainer in the form of Common Stock
                   Units, and some have deferred their entire retainers in
                   this way. All new directors are required to defer at
                   least half of their retainers as Common Stock Units. A
                   Common Stock Unit is what is sometimes referred to as
                   "phantom stock" because initially no stock is actually
                   issued. Instead, we keep a book entry account for each
                   director that shows how many Common Stock Units he or she
                   has. Then, when a director leaves the board, he or she
                   must take actual shares of common stock corresponding to
                   the number of Common Stock Units in his or her account.
                   We believe this is an effective way to increase the
                   directors' equity holdings in USX and thereby further
                   align their interest with that of the stockholders.

                   Every January, we credit each non-employee director's
                   deferred stock account with both Marathon Common Stock
                   Units and U. S. Steel Common Stock Units in the same
                   ratio that the outstanding shares of each class of stock
                   on a fully diluted basis had to each other on the last
                   trading day of the previous year. "Fully diluted" means
                   that we assume the exercise of all currently outstanding
                   stock options and the conversion to common stock of all
                   convertible securities if the exercise or conversion
                   would result in lower earnings per share. The ongoing
                   value of each Common Stock Unit equals the market price
                   of the corresponding class of stock (Marathon or U. S.
                   Steel). When dividends are paid on the common stock, we
                   credit each account with equivalent amounts in additional
                   Common Stock Units.

                   Directors may also defer portions of their annual
                   retainers in the form of cash, which may be invested in
                   certain investment options. When a director leaves the
                   board, he or she receives the deferred cash either in a
                   lump sum or in installments over ten years.

                   If USX were to undergo a change in control resulting in
                   the removal of a non-employee director from the board,
                   that director would receive a cash payment equal to the
                   value of his or her deferred stock and deferred cash
                   accounts.

                   Under our Non-Employee Director Stock Plan, each
                   non-employee director may receive a grant of up to 500
                   shares of each class of common stock. In order to
                   qualify, a director must first purchase an equivalent
                   number of shares in the open market during the 60 days
                   following his or her initial election to the board. The
                   shares granted under this plan may not be sold until the
                   director leaves the board.

                   Our retirement policy for directors requires non-employee
                   directors to retire at the end of the month in which they
                   turn 72, even if their terms have not expired. Employee
                   directors must retire from the board when they retire as
                   employees, except that the chief executive officer may
                   remain on the board, at the board's request, through the
                   month in which he or she turns 70. Our policy also
                   provides that directors who undergo a significant change
                   in their business or professional careers should
                   volunteer to resign from the board.

10

<PAGE>

                   PROPOSALS OF THE BOARD
                   The board will present the following proposals at the
                   meeting:


PROPOSAL NO. 1     ELECTION OF DIRECTORS

                   USX's Certificate of Incorporation divides the directors
                   into three classes: Class I, Class II and Class III. Each
                   class must consist, as nearly as possible, of one-third
                   of the directors. Once elected, directors serve for a
                   term of three years and until their successors are duly
                   elected and qualified. At each annual meeting, directors
                   who are elected to succeed directors whose terms have
                   expired are identified as being of the same class as
                   those they succeed. A director elected to fill a vacancy
                   is elected to the same class as the director he or she
                   succeeds, and a director elected to fill a newly created
                   directorship holds office until the next election of the
                   class to which he or she is elected.

                   Our by-laws require the board to fix the number of
                   directors, and the board has set the maximum number of
                   directors at 16. The current five Class I directors are
                   nominees for election this year for a three-year term
                   that will expire at the 2003 annual meeting. All five of
                   them except Mr. Cazalot (who was elected by the Board
                   effective March 3, 2000), and all of the continuing Class
                   II and Class III directors except Mr.Cooper (who was
                   elected by the Board effective May 1, 1999), have
                   previously been elected by the stockholders. Of the 15
                   current directors, four are officers of USX, one is a
                   retired officer of USX, six have top executive experience
                   with a wide variety of businesses, one was with the
                   National Aeronautics and Space Administration and served
                   as a university professor before entering business, one
                   had a career as a distinguished chemist before becoming
                   an educator, one has a distinguished career in education
                   in addition to service as a member of the President's
                   Cabinet, and one had a distinguished career in the
                   military and the diplomatic corps before entering
                   business. A brief statement about the background of each
                   nominee and each continuing director is given on the
                   following pages. If any nominee for whom you have voted
                   becomes unable to serve, your proxy may be voted for
                   another person designated by the board.

                   Our by-laws describe the procedures that must be used in
                   order for someone nominated by a stockholder of record to
                   be eligible for election as a director. They require that
                   notice be received by the Secretary at least 45 days, but
                   not more than 75 days, before the first anniversary of
                   the date on which we first mailed our proxy materials for
                   the preceding year's annual meeting of stockholders. The
                   notice must contain certain information about the
                   nominee, including his or her age, address, occupation
                   and share ownership, as well as the name, address and
                   share ownership of the stockholder giving the notice.

                                                                              11

<PAGE>

                   NOMINEES FOR CLASS I DIRECTOR
                   TERMS EXPIRE 2003

[PHOTO]            NEIL A. ARMSTRONG       DIRECTOR SINCE 1984           AGE 69
                   ------------------------------------------------------------
                   CHAIRMAN, AIL SYSTEMS INC. (DEFENSE ELECTRONICS COMPANY)

                   Mr. Armstrong received a BS degree in aeronautical
                   engineering from Purdue University and an MS degree in
                   aerospace engineering from the University of Southern
                   California. For 17 years he served with the National
                   Aeronautics and Space Administration and its predecessor
                   agency as engineer, test pilot, astronaut and
                   administrator. From 1971 to 1979 he was professor of
                   aerospace engineering at the University of Cincinnati. In
                   1982 he became Chairman of CTA, Inc. and retired from
                   that position in 1992. He has served as Chairman of AIL
                   Systems Inc. since June 1989. He is a director of Cinergy
                   Corp., Milacron Inc., Cordant Technologies, Inc. and RTI
                   International Metals, Inc. and is a member of the
                   National Academy of Engineering.

[PHOTO]            CLARENCE P. CAZALOT, JR. DIRECTOR SINCE MARCH 3, 2000 AGE 49
                   ------------------------------------------------------------
                   VICE CHAIRMAN-USX CORPORATION AND PRESIDENT-MARATHON
                   OIL COMPANY

                   Mr. Cazalot graduated from Louisiana State University in
                   1972 with a BS degree in geology and joined Texaco Inc.
                   that same year as a geophysicist. After holding a number
                   of management positions, Mr. Cazalot was elected a Vice
                   President of Texaco Inc. and President of Texaco's Latin
                   America/West Africa Division in 1992. In 1994 he was
                   named President of Texaco Exploration and Production
                   Inc., and in 1997 he was named President of International
                   Marketing and Manufacturing. Mr. Cazalot was named
                   President-International Production and Chairman of
                   London-based Texaco Ltd. in 1998. He was named Vice
                   President of Texaco Inc. and President-Production
                   Operations in 1999. Mr. Cazalot was elected Vice
                   Chairman-USX Corporation and President-Marathon Oil
                   Company effective March 3, 2000.

[PHOTO]            ROBERT M. HERNANDEZ       DIRECTOR SINCE 1991         AGE 55
                   ------------------------------------------------------------
                   VICE CHAIRMAN & CHIEF FINANCIAL OFFICER, USX CORPORATION

                   Mr. Hernandez graduated from the University of Pittsburgh
                   with a Bachelor's degree in economics and mathematics and
                   received an MBA from the Wharton Graduate School of
                   Finance and Commerce at the University of Pennsylvania.
                   He joined USX in 1968 and held various finance and
                   accounting positions until 1980 when he was appointed
                   Assistant Corporate Comptroller. He was elected Vice
                   President and Treasurer in 1984 and Senior Vice President
                   and Comptroller in 1987. In 1989, he was appointed
                   President of the U.S. Diversified Group and in 1990
                   elected Senior Vice President-Finance & Treasurer. He was
                   elected director and Executive Vice President-Accounting
                   & Finance & Chief Financial Officer in 1991 and Vice
                   Chairman & Chief Financial Officer in 1994. Mr. Hernandez
                   is a director and Chairman of RTI International Metals,
                   Inc.; a director of Transtar, Inc., and a director and
                   Chairman of the Executive Committee of ACE Limited; a
                   trustee of BlackRock Funds; a director of the
                   Pennsylvania Chamber of Business and Industry; and a
                   member of the Pennsylvania Business Roundtable.

12

<PAGE>

[PHOTO]            JOHN F. MCGILLICUDDY       DIRECTOR SINCE 1984        AGE 69
                   ------------------------------------------------------------
                   RETIRED CHAIRMAN OF THE BOARD, CHEMICAL BANKING CORPORATION

                   Mr. McGillicuddy graduated from Princeton University in
                   1952 and received an LLB degree from Harvard Law School
                   in 1955. He joined Manufacturers Hanover Trust Company in
                   1958, became Vice President in 1962, Senior Vice
                   President in 1966 and Executive Vice President and
                   Assistant to the Chairman in 1969. In 1970 he was elected
                   Vice Chairman and a director of Manufacturers Hanover
                   Corporation and Manufacturers Hanover Trust Company, and
                   he became President of each in 1971. Mr. McGillicuddy was
                   named Chairman and Chief Executive Officer of each
                   company in 1979. Following the merger of Manufacturers
                   Hanover Corporation and Chemical Banking Corporation on
                   January 1, 1992, Mr. McGillicuddy became Chairman of the
                   Board and Chief Executive Officer of the new Chemical
                   Banking Corporation and retired in January 1994. He is a
                   director of Southern Peru Copper Corporation, Young &
                   Rubicam Inc. and UAL Corporation. He is Chairman of New
                   York-Presbyterian Hospital, a member of The Business
                   Council and a Trustee Emeritus of Princeton University.

[PHOTO]            JOHN W. SNOW           DIRECTOR SINCE 1995            AGE 60
                   ------------------------------------------------------------
                   CHAIRMAN, PRESIDENT AND CHIEF EXECUTIVE OFFICER,
                   CSX CORPORATION (A MAJOR TRANSPORTATION COMPANY)

                   Mr. Snow did undergraduate work at Kenyon College and the
                   University of Toledo, received a Ph.D. in economics from
                   the University of Virginia and earned a law degree from
                   George Washington University Law School. Following an
                   academic career as an economics and law professor and
                   several high-level presidential appointments with the
                   U.S. Department of Transportation and the National
                   Highway Traffic Safety Administration, Mr. Snow joined
                   CSX in 1977 as Vice President-Government Affairs for
                   Chessie System Inc. After a number of other senior
                   management assignments, he was elected President and
                   Chief Operating Officer of CSX in 1988, President and
                   Chief Executive Officer in 1989 and Chairman, President
                   and Chief Executive Officer in 1991. Mr. Snow is a
                   director of Circuit City Stores, Inc., GTE Corporation
                   and Johnson & Johnson. He is also Chairman of the Board
                   of the Association of American Railroads, a member of the
                   boards of trustees of The Johns Hopkins University and of
                   the University of Virginia Darden School Foundation; a
                   member of the Policy Committee of the Business Roundtable
                   and of the Executive Committee of The Business Council;
                   and Chairman of the Ron Brown Award for Corporate
                   Citizenship.

                                                                              13

<PAGE>

                   CONTINUING CLASS II DIRECTORS
                   TERMS EXPIRE 2001

[PHOTO]            J. GARY COOPER         DIRECTOR SINCE 1999            AGE 63
                   ------------------------------------------------------------
                   CHAIRMAN AND CHIEF EXECUTIVE OFFICER, COMMONWEALTH NATIONAL
                   BANK (COMMERCIAL BANK)

                   Ambassador Cooper graduated from the University of Notre
                   Dame with a BS degree in finance and attended Harvard
                   University's Senior Managers in Government program. He
                   was awarded an honorary doctor of law degree from Troy
                   University. A retired major general in the U.S. Marine
                   Corps, Ambassador Cooper was twice elected to the Alabama
                   legislature, was commissioner of the Alabama Department
                   of Human Resources and was appointed Assistant Secretary
                   of the Air Force during the Bush administration. He was
                   the United States Ambassador to Jamaica from 1994 to
                   1997. Ambassador Cooper is a director of GenCorp Inc. and
                   Protective Life Corporation.

[PHOTO]            CHARLES R. LEE         DIRECTOR SINCE 1991            AGE 60
                   ------------------------------------------------------------
                   CHAIRMAN OF THE BOARD AND CHIEF EXECUTIVE OFFICER, GTE
                   CORPORATION (TELECOMMUNICATIONS COMPANY)

                   Mr. Lee received a Bachelor's degree in metallurgical
                   engineering from Cornell University and an MBA with
                   distinction from the Harvard Graduate School of Business.
                   He served in various financial and management positions
                   before becoming Senior Vice President-Finance for Penn
                   Central Corp. and then Columbia Pictures Industries Inc.
                   In 1983 he joined GTE as Senior Vice President of Finance
                   and in 1986 was named Senior Vice President of Finance
                   and Planning. He was elected President, Chief Operating
                   Officer and director in December 1988 and elected to his
                   present position in May 1992. Mr. Lee is a director of
                   The Procter & Gamble Company, United Technologies
                   Corporation, the Stamford Hospital Foundation, and the
                   New American Schools Development Corporation. He is a
                   member of The Business Council, the Business Roundtable,
                   The Conference Board and the New American Realities
                   Committee of the National Planning Association. He is
                   also a Trustee Emeritus and Presidential Councillor of
                   Cornell University.

[PHOTO]            RAY MARSHALL         DIRECTOR SINCE 1994              AGE 71
                   ------------------------------------------------------------
                   PROFESSOR, UNIVERSITY OF TEXAS

                   Dr. Marshall graduated from Millsaps College in 1949 with
                   a BA degree and received an MA in economics from the
                   Louisiana State University in 1950 and a Ph.D. in
                   economics from the University of California at Berkeley
                   in 1954. From 1962 to 1967, Dr. Marshall was a professor
                   of economics at the University of Texas at Austin. He was
                   Chairman of the Department of Economics and held the
                   chair of Alumni Professor of Economics at the University
                   of Kentucky from 1967 to 1969. He returned to the
                   University of Texas as Chairman of the Department of
                   Economics and Director of the Center for the Study of
                   Human Resources in 1969. In 1977 Dr. Marshall became the
                   U.S. Secretary of Labor under the Carter Administration.
                   Dr. Marshall currently holds the Audre and Bernard
                   Rapoport Centennial Chair in Economics and Public Affairs
                   at the University of Texas at Austin.

14

<PAGE>

[PHOTO]            THOMAS J. USHER         DIRECTOR SINCE 1991           AGE 57
                   ------------------------------------------------------------
                   CHAIRMAN OF THE BOARD & CHIEF EXECUTIVE OFFICER,
                   USX CORPORATION

                   Mr. Usher graduated from the University of Pittsburgh
                   with a BS degree in industrial engineering, an MS degree
                   in operations research and a Ph.D. in systems
                   engineering. He joined USX in 1965 and held various
                   positions in industrial engineering. From 1975 through
                   1979, he held a number of management positions at USX's
                   South and Gary Works. He was elected Executive Vice
                   President-Heavy Products in 1986, President-U.S. Steel
                   Group and director of USX in 1991, President & Chief
                   Operating Officer of USX in 1994 and Chairman of the
                   Board & Chief Executive Officer effective July 1, 1995.
                   He is a director of PNC Bank, N.A., PPG Industries, Inc.,
                   Transtar, Inc., and the U.S.-Japan Business Council; Vice
                   Chairman of the International Iron and Steel Institute; a
                   member of the Policy Committee of the Business
                   Roundtable; Director and Chairman of the U.S.-Korea
                   Business Council; a director of the American Petroleum
                   Institute; and a member of the Board of Trustees of the
                   University of Pittsburgh and of the Board of the Extra
                   Mile Education Foundation.




[PHOTO]            PAUL J. WILHELM           DIRECTOR SINCE 1995         AGE 58
                   ------------------------------------------------------------
                   VICE CHAIRMAN-USX CORPORATION AND PRESIDENT-U. S. STEEL GROUP

                   Mr. Wilhelm received a BS degree in mechanical
                   engineering from Carnegie-Mellon University in 1964 and
                   joined USX following graduation. After holding a number
                   of management positions, Mr.Wilhelm in 1992 was elected
                   Vice President-Technology & Management Services for the
                   U.S. Steel Group. In 1993 he was named President of
                   USS/Kobe Steel Company, a joint venture between
                   subsidiaries of USX and Kobe Steel Ltd. Mr. Wilhelm was
                   elected Vice President-Operations of the U.S. Steel Group
                   in 1994, President-U.S. Steel Group the same year, and
                   director of USX in 1995. He was named Vice Chairman-USX
                   Corporation effective March 1, 2000. Mr. Wilhelm is a
                   director of Union Carbide Corporation, a member of the
                   Association of Iron and Steel Engineers, Vice Chairman of
                   the American Iron and Steel Institute, Chairman of the
                   Japan-America Society of Pennsylvania and a member of the
                   Board of Trustees of Carnegie Mellon University.

                                                                             15

<PAGE>

                   CONTINUING CLASS III DIRECTORS
                   TERMS EXPIRE 2002

[PHOTO]            JEANETTE G. BROWN        DIRECTOR SINCE 1993          AGE 71
                   ------------------------------------------------------------
                   RETIRED DIRECTOR OF CORPORATE RESEARCH, BP AMERICA

                   Dr. Brown graduated from Ohio University in 1950 with a
                   BS degree and received an MS degree from Western Reserve
                   University in 1958. She holds eight D.Sc. (hon.) degrees.
                   Dr. Brown completed the Executive Management School,
                   University of California, Berkeley. From 1950 to 1988 she
                   was employed by BP America (formerly The Standard Oil
                   Company) in various research positions. She retired as
                   Director of Corporate Research, Environmental and
                   Analytical Sciences. She is a director of AGA Gas, Inc.
                   Dr. Brown is a trustee of the Ohio University Foundation
                   and was Distinguished Visiting Professor and Director,
                   Research Enhancement there from 1989-1995. She was
                   appointed to the Ohio Boards of Regents in 1995, and is
                   Chair of the Board of Trustees of The Cleveland
                   Scholarship Programs, Inc. and a trustee of the Cleveland
                   Orchestra. She also serves on the White House Joint High
                   Level Advisory Panel on US/Japan Science and Technology
                   Agreements.




[PHOTO]            CHARLES A. CORRY         DIRECTOR SINCE 1988          AGE 68
                   ------------------------------------------------------------
                   RETIRED CHAIRMAN OF THE BOARD & CHIEF EXECUTIVE OFFICER,
                   USX CORPORATION

                   Mr. Corry graduated from the University of Cincinnati in
                   1955 with a BA degree and received a JD degree from the
                   University of Cincinnati Law School. After serving in the
                   U.S. Air Force, he joined USX in 1959, holding various
                   finance and accounting positions prior to being named
                   Vice President-Corporate Planning in 1979. Mr. Corry was
                   elected Senior Vice President and Comptroller in 1982 and
                   President of the U. S. Diversified Group of USX in 1987.
                   He was elected President of USX in 1988 and elected
                   Chairman of the Board & Chief Executive Officer in 1989,
                   the position he held until his retirement on June 30,
                   1995. He is a director of Mellon Financial Corp. and
                   Omnova Solutions Inc., a member of the Federal Judicial
                   Nominating Commission and a member of The Business
                   Council.


[PHOTO]            PAUL E. LEGO          DIRECTOR SINCE 1988             AGE 69
                   ------------------------------------------------------------
                   RETIRED CHAIRMAN, WESTINGHOUSE ELECTRIC CORPORATION

                   Mr. Lego graduated from the University of Pittsburgh with
                   BS and MS degrees in electrical engineering after service
                   in the U.S. Army. He joined Westinghouse in 1956 at the
                   East Pittsburgh plant and held a number of engineering
                   and management positions prior to being named a Vice
                   President in 1979, Executive Vice President in 1980 and
                   Senior Executive Vice President, Corporate Resources in
                   1985. In 1988 Mr. Lego was elected a director and
                   President and Chief Operating Officer of Westinghouse
                   and, in 1990, Chairman and Chief Executive Officer. Mr.
                   Lego retired in January 1993. He is Chairman of the Board
                   of Commonwealth Industries, Inc. and a director of
                   Dominion Resources Inc., Lincoln Electric Company and
                   Orlimar Golf Company; a trustee of the University of
                   Pittsburgh; and a member of The Business Council.

16

<PAGE>

[PHOTO]            SETH E. SCHOFIELD         DIRECTOR SINCE 1994         AGE 60
                   ------------------------------------------------------------
                   RETIRED CHAIRMAN AND CHIEF EXECUTIVE OFFICER, USAIR GROUP

                   Mr. Schofield graduated from the Harvard Business School
                   Program for Management Development in 1975. He served in
                   various corporate staff positions after joining USAir in
                   1957 and became Executive Vice President-Operations in
                   1981. Mr. Schofield served as President and Chief
                   Operating Officer from 1990 until 1991. He was elected
                   President and Chief Executive Officer in 1991 and became
                   Chairman of the boards of USAir Group and USAir, Inc. in
                   1992. He retired in January 1996. Mr. Schofield is a
                   director of Calgon Carbon Corp.




[PHOTO]            DOUGLAS C. YEARLEY        DIRECTOR SINCE 1992         AGE 64
                   ------------------------------------------------------------
                   CHAIRMAN OF THE BOARD, PHELPS DODGE CORPORATION
                   (A MAJOR INTERNATIONAL MINING AND MANUFACTURING CONCERN)

                   Mr. Yearley graduated from Cornell University with a
                   Bachelor's degree in metallurgical engineering and
                   attended the Program for Management Development at
                   Harvard Business School. He joined Phelps Dodge in 1960
                   as Director of Research. He held several key positions
                   before being elected Executive Vice President and a
                   director in 1987, Chief Executive Officer in 1989 and
                   President in 1991. He is a director of Lockheed Martin
                   Corporation, J. P. Morgan & Co. Incorporated and Morgan
                   Guaranty Trust Company, and Southern Peru Copper
                   Corporation; a member of the Business Council and the
                   Copper Development Association; and a director of the
                   International Copper Association, the National Mining
                   Association, the Phoenix Symphony and the Center for
                   Compatible Economic Development.


- --------------------------------------------------------------------------------
PROPOSAL NO. 2     ELECTION OF INDEPENDENT ACCOUNTANTS

                   PricewaterhouseCoopers LLP ("PricewaterhouseCoopers") has
                   served as independent accountants of USX for many years.
                   We believe that their knowledge of USX's business and its
                   organization gained through this period of service is
                   very valuable. In accordance with the established policy
                   of the firm, partners and employees of
                   PricewaterhouseCoopers assigned to the USX engagement are
                   periodically rotated, thus giving USX the benefit of new
                   thinking and approaches in the audit area. We expect
                   representatives of PricewaterhouseCoopers to be present
                   at the meeting with an opportunity to make a statement if
                   they desire to do so and to be available to respond to
                   appropriate questions.

                   For the year 1999, PricewaterhouseCoopers performed
                   professional services principally in connection with
                   audits of the consolidated financial statements of USX
                   and the financial statements of the Marathon Group and
                   the U.S. Steel Group, certain subsidiaries and certain
                   pension and other employee benefit plans. They also
                   reviewed quarterly reports and other filings with the
                   Securities and Exchange Commission and other agencies.

                                                                           17

<PAGE>

                   SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS

                   The following table furnishes information concerning all
                   persons known to USX to beneficially own five percent or
                   more of any class of the voting stock of USX:

<TABLE>
<CAPTION>

                                  Name and Address                 Amount and Nature of           Percent of
   Class                        of Beneficial Owner                Beneficial Ownership              Class
- ---------------------------------------------------------------------------------------------------------------
<S>                       <C>                                      <C>                            <C>
Marathon Stock            FMR Corp., Edward C. Johnson 3d and         23,669,301 (1)               7.617 (1)
                          Abigail P. Johnson
                          82 Devonshire Street
                          Boston, MA 02109

Marathon Stock            Capital Research and Management Company     16,300,000 (2)                 5.3 (2)
                          333 South Hope Street
                          55th Floor
                          Los Angeles, CA 90071

Marathon Stock            Wellington Management Company, LLP          15,422,800 (3)                 5.00 (3)
                          75 State Street
                          Boston, MA 02109

Steel Stock               Merrill Lynch & Co., Inc.                    7,459,970 (4)                 8.44 (4)
                          (on behalf of Merrill Lynch Asset
                          Management Group)
                          World Financial Center, North Tower
                          250 Vesey Street
                          New York, NY 10381

Steel Stock               The Prudential Insurance Company            5,269,642 (5)                  5.94 (5)
                          of America
                          751 Broad Street
                          Newark, NJ 07102
- -------------------------------------------------------------------------------
</TABLE>
(1) Based on Schedule 13G dated February 14, 2000 which indicates that FMR Corp.
    had sole voting power over 4,390,089 shares, shared voting power over no
    shares, sole dispositive power over 23,669,301 shares and shared
    dispositive power over no shares. According to such Schedule 13G,
    Fidelity Management & Research Company ("Fidelity"), a wholly-owned
    subsidiary of FMR Corp., is the beneficial owner of 18,140,412 shares;
    Edward C. Johnson 3d, FMR Corp., through its control of Fidelity and the
    various investment companies to which Fidelity acts as investment adviser
    (the "Funds"), each has sole power to dispose of the 18,140,412 shares
    owned by the Funds; neither FMR Corp., nor Edward C. Johnson 3d has the
    sole power to vote or direct the voting of the shares held by the Funds;
    Fidelity Management Trust Company, a wholly-owned subsidiary of FMR
    Corp., is the beneficial owner of 3,753,247 shares; Edward C. Johnson 3d
    and FMR Corp., through its control of Fidelity Management Trust Company,
    each has sole dispositive power over 3,753,247 shares and sole power to
    vote or to direct the voting of 2,898,147 shares and no power to vote or
    to direct the voting of 855,100 shares; Fidelity International Limited
    ("FIL"), once a majority-owned subsidiary of Fidelity but now operating
    as an independent entity, is the beneficial owner of 1,775,642 shares;
    and FIL has sole dispositive power over 1,775,642 shares owned by various
    international funds for which it acts as an investment advisor, sole
    power to vote or direct the voting of 1,491,942 such shares, and no power
    to vote or direct the voting of 283,700 such shares. FMR Corp. and FIL
    are of the view that they are not acting as a "group" for purposes of
    Section 13(d) of the Securities Exchange Act of 1934.

(2) Based on Schedule 13G dated February 10, 2000 which indicates that
    Capital Research and Management Company had sole voting power over no
    shares, shared voting power over no shares, sole dispositive power over
    16,300,000 shares and shared dispositive power over no shares.

(3) Based on Schedule 13G dated February 9, 2000 which indicates that
    Wellington Management Company, LLP had sole voting power over no shares,
    shared voting power over 679,100 shares, sole dispositive power over no
    shares and shared dispositive power over 15,422,800 shares.

(4) Based on Schedule 13G dated February 4, 2000 which indicates that
    Merrill Lynch & Co., Inc. had sole voting power over no shares, shared
    voting power over 7,459,970 shares, sole dispositive power over no shares
    and shared dispositive power over 7,459,970 shares. Merrill Lynch & Co.,
    Inc. disclaims beneficial ownership of the shares shown above.

(5) Based on Schedule 13G dated February 7, 2000 which indicates that The
    Prudential Insurance Company of America ("Prudential") had sole voting
    power over 383,073 shares, shared voting power over 4,531,660 shares,
    sole dispositive power over 383,073 shares and shared dispositive power
    over 4,562,282 shares. Prudential does not admit beneficial ownership of
    the shares shown above. Included in the total number of shares are
    299,960 convertible preferred shares which are convertible into Steel
    Stock at a ratio of 1.0811 Steel Stock share for each preferred share.

18

<PAGE>


                   SECURITY OWNERSHIP OF DIRECTORS
                   AND EXECUTIVE OFFICERS

                   The following table sets forth the number of shares of
                   each class of USX common stock beneficially owned as of
                   January 31, 2000 (except as noted) by each director, by
                   each executive officer named in the Summary Compensation
                   Table and by all directors and executive officers as a
                   group. No director or executive officer beneficially
                   owned, as of the applicable date, any equity securities
                   of USX other than those shown.

<TABLE>
<CAPTION>
                                  Marathon Stock                 Steel Stock
Name                                 Shares                         Shares
- ---------------------------------------------------------------------------------------
<S>                               <C>                            <C>
Neil A. Armstrong (1) ................    12,713                       4,150
Victor G. Beghini (2)(3)..............   615,468                     138,224
Jeanette G. Brown (1) ................     6,463                       2,823
Clarence P. Cazalot, Jr.(2)(3)........   300,000                           0
J. Gary Cooper (1)....................     2,461                       1,376
Charles A. Corry (1)(2)(3)............    62,926                      80,932
Charles C. Gedeon (2)(3)..............     7,609                     124,866
Carl P. Giardini (2)(3)...............   205,917                      12,680
Robert M. Hernandez (2)(3)(4).........   445,154                     188,426
Charles R. Lee (1)....................    11,605                       4,399
Paul E. Lego (1)......................     9,801                       3,134
Ray Marshall (1)......................     9,223                       3,636
John F. McGillicuddy (1)..............    12,008                       3,850
Dan D. Sandman (2)(3).................   131,993                      88,676
Seth E. Schofield (1).................     6,795                       2,854
John W. Snow (1)......................     3,926                       1,932
Thomas J. Usher (2)(3)................   704,538                     501,225
Paul J. Wilhelm (2)(3)................    96,869                     240,680
Douglas C. Yearley (1)................     7,117                       3,067
All Directors and Executive Officers
  as a group.......................... 3,467,227                   2,130,960
(38 persons) (1)(2)(3)(5)
- ---------------------------------------------------------------------------------------
(1) Includes Common Stock Units
    credited under the USX
    Corporation Deferred
    Compensation Plan for
    Non-Employee Directors              Marathon Stock             Steel Stock
    as follows:                       Common Stock Units         Common Stock Units
- ---------------------------------------------------------------------------------------
Neil A. Armstrong.....................    11,214                       3,850
Jeanette G. Brown.....................     5,389                       1,736
J. Gary Cooper........................     1,454                         367
Charles A. Corry......................     2,927                         932
Charles R. Lee........................     9,606                       3,199
Paul E. Lego..........................     8,227                       2,817
Ray Marshall..........................     8,137                       2,540
John F. McGillicuddy..................    10,009                       3,450
Seth E. Schofield.....................     5,704                       1,754
John W. Snow..........................     2,927                         933
Douglas C. Yearley....................     6,118                       2,067
- ---------------------------------------------------------------------------------------
</TABLE>
(2) Includes shares held under the USX Savings Fund Plan, the Marathon Thrift
    Plan, the USX Dividend Reinvestment and Direct Stock Purchase Plans and the
    1990 Stock Plan.

(3) Includes shares which may be acquired upon exercise of outstanding
    options as follows (all options other than those granted on May 25, 1999 and
    on March 3, 2000 are currently exercisable): Mr. Usher: Marathon Stock
    648,600, Steel Stock 466,400; Mr. Corry: Marathon Stock 60,000, Steel Stock
    80,000; Mr.Beghini: Marathon Stock 481,250, Steel Stock 112,750; Mr.
    Cazalot: Marathon Stock 300,000 (granted March 3, 2000), Steel Stock none;
    Mr. Wilhelm: Marathon Stock 85,500, Steel Stock 219,750; Mr. Hernandez:
    Marathon Stock 400,450, Steel Stock 164,500; Mr.Sandman: Marathon Stock
    105,400, Steel Stock 79,325; Mr. Giardini: Marathon Stock 133,420, Steel
    Stock 12,680; Mr. Gedeon: Marathon Stock none, Steel Stock 112,500; and
    all directors and executive officers as a group: Marathon Stock 2,821,010,
    Steel Stock 1,878,660.

(4) As of January 31, 2000 United States Steel and Carnegie Pension Fund,
    trustee of the United States Steel Corporation Plan for Employee Pension
    Benefits and the United States Steel Corporation Plan for Non-Union Employee
    Pension Benefits, owned 587,680 shares of Marathon Stock. This stock was
    received in exchange for common stock of Texas Oil & Gas Corp. Mr. Hernandez
    is chairman and one of seven members of the Investment Committee of the
    trustee. The board of directors of the trustee has by formal resolution
    delegated sole power to vote and dispose of such stock to a subcommittee of
    the Investment Committee which is composed of members who are not officers
    or employees of USX. Mr. Hernandez disclaims beneficial ownership of such
    stock.

(5) Total shares beneficially owned in each case constitute less than one
    percent of the outstanding shares of each class except that all directors
    and executive officers as a group, including Mr. Beghini and Mr. Giardini
    (who have retired), own 1.11 percent of the Marathon Stock and 2.41 percent
    of the Steel Stock.

                                                                          19
<PAGE>

EXECUTIVE COMPENSATION AND OTHER INFORMATION

The following table sets forth certain information concerning the
compensation awarded to, earned by or paid to (a) Mr. Usher, (b) the other
four most highly compensated executive officers of USX who were serving as
executive officers at the end of 1999, and (c) Mr. Beghini and Mr. Giardini,
each of whom would have been among the other four most highly compensated
executive officers if he had been serving as an executive officer at the end
of 1999, for services rendered in all capacities during 1999, 1998 and 1997:

<TABLE>
<CAPTION>

SUMMARY COMPENSATION TABLE
========================================================================================================================
                                                                                       LONG-TERM
                                         ANNUAL COMPENSATION                        COMPENSATION(4)
                              ----------------------------------------------   -------------------------
  NAME                                              SALARY AND     OTHER       RESTRICTED                       ALL
  AND                                                 BONUS        ANNUAL         STOCK         OPTIONS/       OTHER
PRINCIPAL                       SALARY      BONUS     TOTAL     COMPENSATION     AWARD(S)         SARS     COMPENSATION
POSITION             YEAR         ($)        ($)       ($)          ($)           ($)(1)         (#)(2)       ($)(3)
- ------------------------------------------------------------------------------------------------------------------------
<S>                 <C>       <C>        <C>        <C>         <C>            <C>              <C>        <C>
T. J. Usher         1999      1,241,667  1,400,000  2,641,667     13,660         291,151        324,000      119,108
Chairman            1998      1,097,917  1,320,000  2,417,917     11,549         354,840        270,000      126,805
& Chief             1997        981,250  1,420,000  2,401,250     16,820          89,199        200,000      136,079
Executive Officer
- ------------------------------------------------------------------------------------------------------------------------
V. G. Beghini       1999        687,500  1,000,000  1,687,500      3,724               0              0      104,364
Vice Chairman-      1998        775,000    900,000  1,675,000          0               0        120,000      123,543
Marathon Group      1997        723,333  1,050,000  1,773,333          0               0         90,000      116,084
and President-
Marathon Oil
Company (RETIRED OCTOBER 31, 1999)
- ------------------------------------------------------------------------------------------------------------------------
P. J. Wilhelm       1999        604,167    600,000  1,204,167      7,496         119,490        120,000       49,329
Vice Chairman-      1998        535,833    600,000  1,135,833      8,426         217,817        100,000       49,593
USX Corporation     1997        407,500    611,000  1,018,500      7,874          30,599         75,000       47,698
and President-
U. S. Steel Group
- ------------------------------------------------------------------------------------------------------------------------
R. M. Hernandez     1999        573,750    600,000  1,173,750      7,535          94,153        120,000       55,435
Vice Chairman       1998        542,500    650,000  1,192,500      7,876          53,841        100,000       58,180
& Chief             1997        522,500    750,000  1,272,500      6,954          29,733         75,000       62,434
Financial Officer
- ------------------------------------------------------------------------------------------------------------------------
D. D. Sandman       1999        425,000    425,000    850,000      4,251          75,323         60,000       47,852
General Counsel,    1998        397,917    450,000    847,917      4,852          66,079         56,000       46,196
Secretary and       1997        354,583    530,000    884,583      2,986          21,812         40,000       39,077
Senior Vice
President-
Human Resources
& Public Affairs
- ------------------------------------------------------------------------------------------------------------------------
C. P. Giardini      1999        314,167    280,000    594,167      5,927          61,688              0       48,182
Executive Vice      1998        357,000    350,000    707,000      1,463          30,600         32,500       56,720
President-          1997        335,500    450,000    785,500      1,463          17,625         25,000       54,065
Exploration &
Production, Marathon
Oil Company (RETIRED OCTOBER 31, 1999)
- ------------------------------------------------------------------------------------------------------------------------
C. C. Gedeon        1999        336,000    230,000    566,000      1,677          31,041         35,000       28,725
Executive Vice      1998        322,667    330,000    652,667      1,841          22,369         32,500       31,278
President-          1997        305,000    400,000    705,000      1,841          12,800         25,000       35,018
Raw Materials &
Diversified Businesses,
U. S. Steel Group
- ------------------------------------------------------------------------------------------------------------------------
</TABLE>

(1) Grants of restricted stock under the USX 1990 Stock Plan. Grants are
    subject to conditions including continued employment and achievement of
    business performance standards. Dividends are paid on restricted stock.
    Shown below is the vesting schedule for restricted stock scheduled to
    vest less than three years from the date of grant, together with the
    number and value, as of December 31, 1999, of the aggregate holdings of
    restricted stock for each of the executive officers named in the Summary
    Compensation Table. Vesting shown assumes achievement of business
    performance at peer-group standard (as described in the Compensation
    Committee Report which begins on page 25).

20

<PAGE>

<TABLE>
<CAPTION>

                                                                              UNVESTED RESTRICTED SHARES
                                    VESTING SCHEDULE                              AGGREGATE HOLDINGS
                    ---------------------------------------------      ------------------------------------------
                                                                                                    VALUE AS OF
                                         CLASS OF        MAY 2000       CLASS OF                DECEMBER 31, 1999
                      DATE GRANTED        STOCK          (SHARES)        STOCK       SHARES             ($)
- -----------------------------------------------------------------------------------------------------------------
<S>                  <C>                 <C>             <C>            <C>          <C>        <C>

T. J. Usher          May 26, 1998        Marathon         6,500         Marathon     13,162           328,227
                                         Steel            3,570         Steel         7,088           229,253
                                                                                                  ---------------
                     May 25, 1999        Marathon         3,120                                       557,480
                                         Steel            1,680
- -----------------------------------------------------------------------------------------------------------------
V. G. Beghini             -                -                -
- -----------------------------------------------------------------------------------------------------------------
P. J. Wilhelm        May 26, 1998        Marathon         1,200         Marathon      2,205            54,987
                                         Steel            2,535         Steel         5,895           190,667
                                                                                                  ---------------
                     May 25, 1999        Marathon             0                                       245,654
                                         Steel            2,265
- -----------------------------------------------------------------------------------------------------------------
R. M. Hernandez      May 26, 1998        Marathon           975         Marathon      4,387           109,401
                                         Steel              555         Steel         2,363            76,428
                                                                                                  ---------------
                     May 25, 1999        Marathon           975                                       185,829
                                         Steel              525
- -----------------------------------------------------------------------------------------------------------------
D. D. Sandman        May 26, 1998        Marathon         1,222         Marathon      3,510            87,531
                                         Steel              658         Steel         1,890            61,130
                                                                                                  ---------------
                     May 25, 1999        Marathon           780                                       148,661
                                         Steel              420
- -----------------------------------------------------------------------------------------------------------------
C. P. Giardini            -                -                 -          Marathon      4,050           100,997
- -----------------------------------------------------------------------------------------------------------------
C. C. Gedeon         May 26, 1998        Steel              600         Steel         2,700            87,328
                     May 25, 1999        Steel              400
- -----------------------------------------------------------------------------------------------------------------
</TABLE>

(2) All option shares listed were granted with tandem stock appreciation
    rights ("SARs").

(3) This column includes amounts contributed by USX under the USX Savings
    Fund Plan or the Marathon Thrift Plan and the related supplemental
    savings plans. Such amounts for 1999 are $62,083 for Mr. Usher, $99,597
    for Mr. Beghini, $30,208 for Mr. Wilhelm, $28,687 for Mr. Hernandez,
    $21,250 for Mr. Sandman, $41,961 for Mr. Giardini and $15,120 for Mr.
    Gedeon. Also included are amounts attributable to split-dollar life
    insurance provided by USX. (Marathon Oil Company does not provide
    split-dollar life insurance.) For 1999, these amounts are $32,513 for Mr.
    Usher, $8,527 for Mr. Wilhelm, $ 17,244 for Mr. Hernandez, $18,599 for
    Mr. Sandman and $8,255 for Mr. Gedeon. Also included are amounts
    attributable to a mandatory tax compliance program. For 1999, these
    amounts were $2,000 for each of Messrs. Usher, Wilhelm, Hernandez,
    Sandman, Giardini and Gedeon. Also included are dividends paid on
    restricted stock. For 1999, these amounts were $22,512 for Mr. Usher,
    $4,767 for Mr. Beghini, $8,594 for Mr. Wilhelm, $7,504 for Mr. Hernandez,
    $6,003 for Mr. Sandman, $4,221 for Mr.Giardini and $3,350 for Mr. Gedeon.


                                                                             21

<PAGE>


(4) Restricted stock and stock options/SAR shares granted by class of stock
    are as follows:

<TABLE>
<CAPTION>

                                                     RESTRICTED
                                   CLASS OF            STOCK               STOCK OPTION/
                                    STOCK               ($)                  SAR SHARES
- --------------------------------------------------------------------------------------------
<S>                           <C>                    <C>                   <C>
T. J. Usher                   1999 Marathon            191,878                 210,600
                                   Steel                99,273                 113,400
                              --------------------------------------------------------------
                              1998 Marathon            221,000                 175,500
                                   Steel               133,840                  94,500
                              --------------------------------------------------------------
                              1997 Marathon             57,281                 130,000
                                   Steel                30,720                  64,000
                                   Delhi                 1,198                   6,000
- --------------------------------------------------------------------------------------------
V. G. Beghini                 1999 Marathon                  0                       0
                                   Steel                     0                       0
                              --------------------------------------------------------------
                              1998 Marathon                  0                  78,000
                                   Steel                     0                  42,000
                              --------------------------------------------------------------
                              1997 Marathon                  0                  58,500
                                   Steel                     0                  31,500
- --------------------------------------------------------------------------------------------
P. J. Wilhelm                 1999 Marathon             24,675                  24,000
                                   Steel                94,815                  96,000
                              --------------------------------------------------------------
                              1998 Marathon             72,420                  35,000
                                   Steel               145,397                  65,000
                              --------------------------------------------------------------
                              1997 Marathon              9,400                  24,000
                                   Steel                20,800                  48,750
                                   Delhi                   399                   2,250
- --------------------------------------------------------------------------------------------
R. M. Hernandez               1999 Marathon             62,040                  78,000
                                   Steel                32,113                  42,000
                              --------------------------------------------------------------
                              1998 Marathon             33,150                  65,000
                                   Steel                20,691                  35,000
                              --------------------------------------------------------------
                              1997 Marathon             19,094                  48,750
                                   Steel                10,240                  24,000
                                   Delhi                   399                   2,250
- --------------------------------------------------------------------------------------------
D. D. Sandman                 1999 Marathon             49,644                  39,000
                                   Steel                25,679                  21,000
                              --------------------------------------------------------------
                              1998 Marathon             41,548                  36,400
                                   Steel                24,531                  19,600
                              --------------------------------------------------------------
                              1997 Marathon             13,748                  26,000
                                   Steel                 8,064                  12,800
                                   Delhi                     0                   1,200
- --------------------------------------------------------------------------------------------
C. P. Giardini                1999 Marathon             61,688                       0
                              1998 Marathon             30,600                  32,500
                              1997 Marathon             17,625                  25,000
- --------------------------------------------------------------------------------------------
C. C. Gedeon                  1999 Steel                31,041                  35,000
                              1998 Steel                22,369                  32,500
                              1997 Steel                12,800                  25,000
- --------------------------------------------------------------------------------------------

</TABLE>


22
<PAGE>

                   1999 OPTION/SAR GRANTS

The following table sets forth certain information concerning options and
stock appreciation rights ("SARs") granted during 1999 to each executive
officer named in the Summary Compensation Table under the USX 1990 Stock Plan:

<TABLE>
<CAPTION>
                                               % of
                                               Total                                           Potential Realizable Value
                                              Options/       Exercise                          at Assumed Annual Rates of
                                Number of       SARs          or Base                           Stock Price Appreciation
                                Options/      Granted to     Price per                           for Option Term ($)(4)
Name or           Class of       SARs         Employees        Share      Expiration      --------------------------------------
Group              Stock        Granted(1)    in 1999(3)        ($)          Date             0%          5%          10%
- --------------------------------------------------------------------------------------------------------------------------------
<S>               <C>           <C>           <C>            <C>          <C>             <C>         <C>         <C>
T. J. Usher        Marathon      210,600 (2)      21.0%        29.3750    May 25, 2009        0       3,890,582        9,859,492
                   Steel         113,400 (2)      17.3%        28.2188    May 25, 2009        0       2,012,476        5,099,995

V. G. Beghini      Marathon            0
                   Steel               0

P. J. Wilhelm      Marathon        24,000 (2)      2.4%        29.3750    May 25, 2009        0         443,371        1,123,589
                   Steel           96,000 (2)     14.6%        28.2188    May 25, 2009        0       1,703,683        4,317,456

R. M. Hernandez    Marathon        78,000 (2)      7.8%        29.3750    May 25, 2009        0       1,440,956        3,651,664
                   Steel           42,000 (2)      6.4%        28.2188    May 25, 2009        0         745,361        1,888,887

D. D. Sandman      Marathon        39,000 (2)      3.9%        29.3750    May 25, 2009        0         720,478        1,825,832
                   Steel           21,000 (2)      3.2%        28.2188    May 25, 2009        0         372,681          944,444

C. P. Giardini     Marathon             0

C. C. Gedeon       Steel           35,000 (2)      5.3%        28.2188    May 25, 2009        0         621,135        1,574,073
- --------------------------------------------------------------------------------------------------------------------------------
All Stockholders   Marathon        N/A              N/A        29.3750       N/A              0   5,759,524,548   14,595,754,699
                   Steel           N/A              N/A        28.2188       N/A              0   1,568,767,711    3,975,554,591
- --------------------------------------------------------------------------------------------------------------------------------
All Optionees      Marathon     1,005,000         100.0%       29.3750    May 25, 2009        0      18,566,169       47,050,281
                   Steel          656,400         100.0%       28.2188    May 25, 2009        0      11,648,934       29,520,605
- --------------------------------------------------------------------------------------------------------------------------------
All Optionees'     Marathon        N/A              N/A        29.3750       N/A              0           0.32%            0.32%
Gain as % of       Steel           N/A              N/A        28.2188       N/A              0           0.74%            0.74%
All Stockholders'
Gain
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE>

(1) All options listed are exercisable on May 25, 2000.

(2) These options were granted with tandem SARs, which have the same date of
    exercisability as the underlying option. Upon the exercise of an SAR, an
    optionee receives an amount, in cash and/or shares, equal to the excess, for
    a specified number of shares, of (a) the fair market value of a share on the
    date the SAR is exercised (except that for any SAR exercised during the
    10-business-day period beginning on the third business day following the
    release of USX's quarterly earnings, the Compensation Committee may, in its
    sole discretion, establish a uniform fair market value of a share for such
    period which shall not be more than the highest daily fair market value and
    shall not be less than the lowest daily fair market value during such
    10-business-day period) over (b) the exercise or base price per share.

(3) Indicates percentage of total options granted in the applicable class of
    stock.

(4) The dollar amounts under these columns are the result of calculations at
    0% and at the 5% and 10% rates set by the Securities and Exchange Commission
    and therefore are not intended to forecast possible future appreciation, if
    any, of the price of the Marathon Stock or the Steel Stock. USX did not use
    an alternative formula for a grant date valuation, as USX is not aware of
    any formula which will determine with reasonable accuracy a present value
    based on future unknown or volatile factors. Amounts shown for All
    Stockholders represent the potential realizable value assuming appreciation
    at the rates indicated based on the exercise or base price per share and the
    expiration date applicable to grants made in 1999 and the number of
    outstanding shares as of December 31, 1999.

                                                                              23
<PAGE>

OPTION EXERCISES AND YEAR-END VALUES

The following table sets forth certain information concerning options to
purchase USX common stock and stock appreciation rights ("SARs") exercised by
each executive officer named in the Summary Compensation Table during 1999
together with the total number of options and SARs outstanding at December
31, 1999 and the value of such options.

                AGGREGATED 1999 OPTION/SAR EXERCISES
               AND DECEMBER 31, 1999 OPTION/SAR VALUES

<TABLE>
<CAPTION>
                                                               Total Value
                                                              of Unexercised
                     No. of     Total Value     No. of         In-The-Money
                     Shares     Realized      Unexercised     Options/SARs at
                   Underlying    for All     Options/SARs at  December 31, 1999
                  Options/SARs  Classes of    December 31,    for All Classes
   Name           Exercised(1)  Stock ($)(1)     1999(1)      of Stock ($)(1)
- -------------------------------------------------------------------------------
<S>               <C>           <C>           <C>            <C>
T. J. Usher          20,000        18,624      1,115,000            817,157
V. G. Beghini             0             0        594,000          1,461,502
P. J. Wilhelm             0             0        305,250            412,760
R. M. Hernandez           0             0        564,950          1,182,878
D. D. Sandman         5,000         4,656        184,725             98,370
C. P. Giardini            0             0        146,100            179,397
C. C. Gedeon              0             0        112,500            152,970
- -------------------------------------------------------------------------------
</TABLE>

Note: All options listed above, except those granted on May 25, 1999, are
      currently exercisable. Except for 2,500 shares granted to Mr. Wilhelm,
      all options listed above were granted with SARs.

(1)   Figures by class of stock are as follows:


<TABLE>
<CAPTION>
                                                                    Total Value of
                                                        No. of        Unexercised
                                                      Unexercised     In-The-Money
                           No. of Shares              Options/SARs    Options/SARs
                            Underlying      Value         at               at
                Class of    Options/SARs   Realized    December 31,   December 31,
                Stock      Exercised         ($)         1999            1999
- -------------------------------------------------------------------------------
<S>             <C>        <C>             <C>        <C>             <C>
T. J. Usher      Marathon     20,000        18,624       648,600         285,250
                 Steel             0             0       466,400         531,907

V. G. Beghini    Marathon          0             0       481,250       1,441,453
                 Steel             0             0       112,750          20,049

P. J. Wilhelm    Marathon          0             0        85,500               0
                 Steel             0             0       219,750         412,760

R. M. Hernandez  Marathon          0             0       400,450         983,406
                 Steel             0             0       164,500         199,472

D. D. Sandman    Marathon      5,000         4,656       105,400               0
                 Steel             0             0        79,325          98,370

C. P. Giardini   Marathon          0             0       133,420         175,803
                 Steel             0             0        12,680           3,594

C. C. Gedeon     Marathon          0             0             0               0
                 Steel             0             0       112,500         152,970
- -------------------------------------------------------------------------------
</TABLE>

24
<PAGE>


COMPENSATION COMMITTEE REPORT
ON EXECUTIVE COMPENSATION




Our Committee sets policies and administers programs on executive
compensation. When we believe that action should be taken on a specific
compensation item, we either make a recommendation to the USX Board or a
subsidiary company board or take action on our own, whichever is appropriate.
We report to the USX Board actions which do not require board approval. The
purpose of this report is to summarize the philosophy, specific program
objectives and other relevant factors considered by the Committee in decision
making with respect to the compensation of USX, Marathon Group and U. S.
Steel Group executive officers, including the officers named in the Summary
Compensation Table.

Compensation programs for USX's executive officers are designed to attract,
retain and motivate employees who will make significant contributions to the
achievement of corporate goals and objectives. The principal elements of our
executive officers' compensation are:
- - Salary
- - Short-term incentive (bonus) awards and
- - Long-term incentive awards (stock options with stock appreciation rights and
  restricted stock).
For each of the above elements of compensation, we exercise our discretion in
the subjective consideration of the factors described below and within the
limitations of the various plans.

SALARY
Salary administration at USX begins with the development, and periodic
adjustment, of salary structures for executive officers employed at the
corporate level and at each major business unit. Each executive officer's
position is assigned a salary grade with an associated salary range. Our two
major objectives in developing salary structures and assigning grades are to
maintain:
1. external competitiveness - the midpoint of the salary range for each
   position is near the average midpoint for similar positions at comparable
   companies, and
2. internal equity - each position's grade in the unit's hierarchy of
   positions accurately reflects its relative "value".

The data used in developing and adjusting salary structures are obtained from
surveys coordinated by independent consultants, with each unit having its own
sources of relevant data.

We make decisions on salary increases and, occasionally - when business
conditions dictate - salary decreases. When we determine salary increases, we
give the highest weighting to performance; but we also consider other
factors, such as experience and time in position. Once an executive officer's
salary has passed the midpoint for the position, increases seldom exceed
amounts necessary to maintain the salary near the midpoint, assuming
performance merits such increases. Therefore, incentive opportunities provide
the primary basis for significant increases in compensation. The salaries
shown for the officers named in the Summary Compensation Table reflect the
results of our salary reviews and related actions.


                                                                              25
<PAGE>


SHORT-TERM INCENTIVE AWARDS
USX's short-term incentive (bonus) opportunities for executive officers are
designed to provide awards near the average of those provided by similar
companies for on-target performance. However, our incentive plans are
designed to provide exceptional rewards for superior performance and lower
rewards for below-average performance. We make bonus awards under the Senior
Executive Officer Annual Incentive Compensation Plan, as well as under other
plans developed for specific business units. The Senior Executive Officer
Annual Incentive Compensation Plan was developed specifically to retain the
corporation's tax deduction for awards made to the officers named in the
Summary Compensation Table and was approved, as amended and restated, by the
stockholders on April 28, 1998.

SENIOR EXECUTIVE OFFICER ANNUAL INCENTIVE COMPENSATION PLAN
This Plan provides for awards based on pre-established performance measures
specifically related to the responsibilities of Plan participants. For each
performance measure, we can award the applicable portion of the bonus only if
performance reaches the minimum, or threshold, level for that measure. While
performance for 1999 varied among USX's business units, performance levels
were reached or exceeded for the following:

<TABLE>

- --------------------------------------------------------------------------------
<S>                    <C>
For Marathon Group     Income from operations, liquid hydrocarbon production,
                       natural gas production, liquid hydrocarbon and natural
                       gas reserve additions, refined product sales, refined
                       product margins, worker safety and environmental
                       emissions improvements
- --------------------------------------------------------------------------------
For U. S. Steel Group  Income from operations, steel shipments, worker safety
                       and stock price performance
- --------------------------------------------------------------------------------
For USX (Corporate)    All the above plus workforce diversity
- --------------------------------------------------------------------------------
</TABLE>

Our Committee certified in writing prior to payment of awards for the year
1999 that the pre-established, applicable performance levels (measured for
incentive compensation purposes) required under the Plan were satisfied.

OTHER PLANS
We also administer other bonus plans in which corporate and business unit
executive officers participate. These plans were developed specifically for
corporate, U. S. Steel Group and Marathon Group employees. Our Committee
makes awards based on the degree of achievement of pre-established
objectives, such as income, cash flow and return on capital employed, as
measured for incentive compensation purposes, as well as individual
objectives. In determining awards under these plans, we also give
consideration to changes over the previous year's performance as well as the
absolute levels of income and cash flow. When making awards to executive
officers under these Plans, our Committee gives such weight to the various
factors as we deem appropriate.

Based on consideration of other factors, our Committee may reduce or
eliminate a short-term incentive award that would otherwise be payable under
the above-discussed plans.


26
<PAGE>


LONG-TERM INCENTIVE AWARDS
We consider long-term incentive awards to be of major importance in the mix
of compensation elements because these awards provide the most direct link to
the returns that you, as USX stockholders, receive. The stockholders approved
the 1990 Stock Plan, as amended and restated, on April 28, 1998. We
administer this plan, under which we may grant (1) stock options, with or
without a restoration feature, (2) stock appreciation rights and/or (3)
restricted stock. Our stock options and restricted stock meet the
requirements for deductibility under the tax laws.

STOCK OPTION GRANTS
Our Committee makes stock option grants that we believe to be reasonable and
in line with other compensation. The number of shares we grant generally
reflects the employee's level of responsibility, and the class or classes of
stock granted reflect the specific business unit(s) to which the employee's
responsibilities relate. Following our normal annual grant practice, we
granted stock options in May 1999.

RESTRICTED STOCK GRANTS
Since the inception of the 1990 Stock Plan, our Committee has established,
for each recipient, an annual target level of restricted stock shares, based
on the same factors as we consider in granting stock options. A major grant
is made to cover five years, with the intention that one fifth of the shares
will vest each year if performance is at the target level. We vest restricted
stock at levels higher or lower than annual targets, depending on
performance.

We made our last major grant in 1995, to cover the five-year performance
period ending with 1999, and we made interim grants only to permit vesting at
the target level for the number of years remaining in the period. To
emphasize the long-term nature of the awards, our vesting decisions are based
on three-year average performance, which is compared with three-year
peer-group performance for relevant businesses.

Vesting of restricted stock shares is based on pre-established performance
measures specifically related to the responsibilities of Plan participants.
We can vest a portion of the annual target shares only if performance reaches
the minimum, or threshold, level established for that period.

In May 1999, we compared our three-year (1996-1998) average performance with
that of competitors for the measures shown below. This comparison provides
the primary basis for the determination of vesting levels for restricted
stock. However, vesting levels may be reduced (or eliminated entirely) based
on other factors considered relevant by the Committee.


                                                                              27

<PAGE>

<TABLE>
<CAPTION>

      UNIT                            PERFORMANCE MEASURE
- -------------------------------------------------------------------------------
<S>                     <C>
Marathon Group          Earnings before interest, taxes and depreciation
                           as a percent of total assets
                        Oil and gas reserve replacement ratio
                        Income per barrel of oil equivalent produced
                           (upstream)
                        Operating income per barrel of refinery throughput
                           (downstream)
                        Safety performance
- -------------------------------------------------------------------------------
U. S. Steel Group       Income from operations as a percent of capital employed
                        Income from operations per ton shipped
                        Operating cash flow as a percent of capital employed
                        Safety performance
- -------------------------------------------------------------------------------
USX Headquarters        Weighted Composite
                        (65% Marathon Group/35% U. S. Steel Group)
- -------------------------------------------------------------------------------
</TABLE>

Our Committee certified in writing prior to vesting of restricted stock
shares in the year 1999 that the pre-established applicable performance
levels required under the Plan were satisfied.

The Committee periodically compares data on long-term incentive grants made
at other companies with those made at USX. Our objective in making grants
under the 1990 Stock Plan is to provide opportunities to receive
above-average compensation (compared with that of similar companies) when
performance is above the target level.

Overall, executive compensation at USX is designed to provide total pay that
is above average when both short- and long-term incentive goals are exceeded.

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

In addition to the compensation comparisons described above, our Committee
annually compares the salary, bonus and long-term incentive payouts for the
Chairman, the Chief Financial Officer, and the Presidents of the U. S. Steel
and Marathon Groups with the same elements for similar positions at
comparable companies.

With respect to the compensation comparisons that we make, we believe that
the companies with which USX competes for employees are not necessarily
limited to the companies with which shareholder returns would logically be
compared. The peer groups used in the performance graphs include the Standard
& Poor's 500 Stock Index and those oil and steel companies deemed most
comparable to the Corporation's businesses for measuring stock performance.
The companies used for comparing compensation reflect similarities to USX and
its operating groups in such factors as line of business (when relevant),
size and complexity. Therefore, the compositions of the groups of companies
used for compensation comparisons are not identical to those of the peer
groups shown in the Shareholder Return Performance Presentation.

Mr. Usher's 1999 compensation reflects the same elements and the same factors
as those described above. His leadership and effectiveness in dealing with
major corporate problems and opportunities are also considered in determining
his salary increases. Taking into account these factors, as well as (1) the
comparability of his salary with CEOs of other companies of similar size and
complexity and (2) the position of his salary in the range for his position,
the Committee approved a salary increase for Mr. Usher effective August 1,
1999.

28

<PAGE>

               The Committee made an award to Mr. Usher for 1999 under the
               Senior Executive Officer Annual Incentive Compensation Plan
               taking into consideration the overall performance of the
               Corporation and its business units, specifically the
               performance measures listed in the previous table. The
               Committee also considered Mr. Usher's contributions to
               improving the Corporation's business portfolio through key
               acquisitions and dispositions, ongoing cost reduction
               efforts, including voluntary early retirement programs, the
               timely renegotiation of a competitive labor agreement with
               the United Steelworkers of America and strong environmental
               and safety performances at both business units versus their
               peer groups.

               The Committee considered the additional stock option shares
               granted to Mr. Usher under the 1990 Stock Plan to be at a
               competitive level relative to other CEOs. On the basis of
               the performance shown in the above table, we also vested
               restricted stock for and made an additional grant of
               restricted stock to Mr. Usher.

               Seth E. Schofield
               Neil A. Armstrong
               Charles R. Lee
               John W. Snow
               Douglas C. Yearley

- -------------------------------------------------------------------------------
SECTION 16(a)  We are required to identify any officer or director who
BENEFICIAL     failed to file on a timely basis with the Securities and
OWNERSHIP      Exchange Commission a required report relating to ownership
REPORTING      and change in ownership of USX's equity securities. Three
COMPLIANCE     individuals were late in filing one form each. John T. Mills
               was late in filing his Form 5 for 1998 relating to two
               transactions. Jeanette G. Brown was late in filing her Form
               5 for 1998 in connection with two transactions resulting
               from the automatic conversion of accrued vested benefits
               into Common Stock Units. J. Gary Cooper was late in filing a
               Form 4 relating to two transactions.


                                                                             29


<PAGE>


                   SHAREHOLDER RETURN PERFORMANCE PRESENTATION

The line graphs below compare the yearly change in cumulative total
stockholder return for each class of our common stock with the cumulative
total return of the Standard & Poor's 500 Stock Index. The Marathon graph
also shows a comparison with the Standard & Poor's Domestic Integrated Oil
Index, and the U.S. Steel graph also shows a comparison with a Steel Index
that is defined in a footnote to the graph.

                      COMPARISON OF CUMULATIVE TOTAL RETURN
             ON $100 INVESTED IN MARATHON STOCK ON DECEMBER 31, 1994
                                       VS.
                 S&P 500 AND S&P DOMESTIC INTEGRATED OIL INDEX(1)

                                    [GRAPH]

<TABLE>
           MARATHON
              STOCK       S&P 500      S&P OIL INDEX
<S>        <C>            <C>          <C>
12/31/94        100           100                100
12/31/95        123           138                114
12/31/96        156           169                144
12/31/97        226           226                171
12/31/98        207           290                139
12/31/99        175           351                173
</TABLE>


                       USX-Marathon Group Common Stock
                       S&P 500 Index
                       S&P Domestic Integrated Oil Index






(1)  Total return assumes reinvestment of dividends.



30
<PAGE>

                        COMPARISON OF CUMULATIVE TOTAL RETURN
                  ON $100 INVESTED IN STEEL STOCK ON DECEMBER 31, 1994
                                        VS.
                            S&P 500 AND STEEL INDEX(1)

                                    [GRAPH]

<TABLE>
             STEEL STOCK     S&P 500        STEEL INDEX
<S>            <C>         <C>           <C>
12/31/94         100           100               100
12/31/95          89           138                83
12/31/96          94           169                69
12/31/97          97           226                63
12/31/98          74           290                60
12/31/99         110           351                53
</TABLE>



                       USX-U. S. Steel Group Common Stock
                       S&P 500 Index
                       Steel Index(2)




                (1) Total return assumes reinvestment of dividends.
                (2) The Steel Index consists of the common stocks of AK Steel
                    Corporation, Bethlehem Steel Corporation, LTV Corporation
                    and National Steel Corporation for the period December 31,
                    1994 through December 31, 1999, and Inland Steel Industries
                    for the period December 31, 1994 through December 31, 1997.
                    Inland Steel Industries sold its steelmaking subsidiary,
                    Inland Steel Co., to Ispat International NV in 1998. The
                    resulting company, Ispat Inland Inc., is not publicly
                    traded.


TRANSACTIONS        In the regular course of its business since January 1,
                    1999, USX and its subsidiaries have had transactions
                    with entities with which certain directors were
                    affiliated. Such transactions were in the ordinary
                    course of business and at competitive prices and terms.
                    We do not consider any such director to have a material
                    interest in any such transaction. We anticipate that
                    similar transactions will occur in 2000.


                                                                             31
<PAGE>

PENSION BENEFITS


The United States Steel Corporation Plan for Non-Union Employee Pension
Benefits is comprised of two defined benefits. One is based on final earnings
and the other on career earnings. Directors who have not been employees of
USX do not receive any benefits under the plan. The following table shows the
annual final earnings pension benefits for retirement at age 65 (or earlier
under certain circumstances) for various levels of eligible earnings which
would be payable to employees retiring with the years of service shown. The
benefits are based on a formula of a specified percentage (dependent on years
of service) of average annual eligible earnings in the five consecutive years
of the ten years prior to retirement in which such earnings were highest. As
of January 31, 2000, Mr. Usher had 34 credited years of service, Mr. Wilhelm
35, Mr. Hernandez 31, Mr. Sandman 7 and Mr. Gedeon 13. If Mr. Gedeon retires
with at least 16 credited years of service, USX will pay him an amount
equivalent to a final earnings and a supplemental pension calculated as
though he had an additional 14 years of service.

                          TABLE OF PENSION BENEFITS
                       FINAL EARNINGS PENSION BENEFITS

<TABLE>
<CAPTION>

Average Annual
Eligible Earnings
for Highest Five
Consecutive Years
in Ten-Year Period           ANNUAL BENEFITS FOR YEARS OF SERVICE
Preceding Retirement

          15 Years   20 Years   25 Years   30 Years   35 Years   40 Years   45 Years
- ------------------------------------------------------------------------------------
<S>       <C>        <C>        <C>        <C>        <C>        <C>        <C>
$ 100,000 $ 17,325   $ 23,100   $ 28,875   $ 34,650   $ 40,950   $ 47,250   $ 53,550
  300,000   51,975     69,300     86,625    103,950    122,850    141,750    160,650
  500,000   86,625    115,500    144,375    173,250    204,750    236,250    267,750
  700,000  121,275    161,700    202,125    242,550    286,650    330,750    374,850
  900,000  155,925    207,900    259,875    311,850    368,550    425,250    481,950
1,100,000  190,575    254,100    317,625    381,150    450,450    519,750    589,050
1,300,000  225,225    300,300    375,375    450,450    532,350    614,250    696,150
</TABLE>

Annual career earnings pension benefits are equal to one percent of total
career eligible earnings plus a 30 percent supplement. The estimated annual
career earnings benefits payable at normal retirement age 65, assuming no
increase in annual earnings, will be $246,725 for Mr. Usher, $107,163 for Mr.
Wilhelm, $155,587 for Mr. Hernandez, $104,289 for Mr. Sandman and $68,370 for
Mr. Gedeon. Earnings for the purpose of calculating both the final earnings
and career earnings pensions are limited to base salary for services
performed, allowance for absence covered by sick leave salary continuance and
payment for absence while on regular vacation or holidays. These earnings are
reported in the salary column of the Summary Compensation Table on page 20.
They do not include any awards under the Annual Incentive Compensation Plan
or the Senior Executive Officer Annual Incentive Compensation Plan. Benefits
under both pension provisions are based on a straight life annuity form of
benefit, which is not subject to reduction for Social Security benefits; but
the final earnings pension is subject to offset for a pension provided
outside the plan from a fund to which USX has contributed, and for payments
made by USX pursuant to workers' compensation or similar laws when such
payments are the result of a permanent disability. Benefits may be paid as an
actuarially determined lump sum in lieu of monthly pensions under both the
final earnings and career earnings provisions of the plan.

In addition to the pension benefit described above, members of USX executive
management, including all of the executive officers named in the Summary
Compensation Table except Mr. Beghini and Mr. Giardini, are entitled, upon
retirement after age 60, or before age 60 with USX's consent, to the benefits
shown in the table below based on bonuses paid under the Annual Incentive
Compensation Plan and the Senior Executive Officer Annual Incentive
Compensation Plan. These bonuses are reported in the bonus column of the
Summary Compensation Table on page 20.

32
<PAGE>

                        SUPPLEMENTAL PENSION BENEFITS
<TABLE>
<CAPTION>

Average Annual
Bonus for Three
Highest Years
in Ten-Year Period
Preceding                  ANNUAL BENEFITS FOR YEARS OF SERVICE
Retirement

          15 Years  20 Years  25 Years   30 Years   35 Years   40 Years   45 Years
- ----------------------------------------------------------------------------------
<S>       <C>       <C>       <C>        <C>        <C>        <C>      <C>
$ 100,000 $ 23,100  $ 30,800  $ 38,500   $ 46,200   $ 53,900   $ 61,600 $   69,300
  300,000   69,300    92,400   115,500    138,600    161,700    184,800    207,900
  500,000  115,500   154,000   192,500    231,000    269,500    308,000    346,500
  700,000  161,700   215,600   269,500    323,400    377,300    431,200    485,100
  900,000  207,900   277,200   346,500    415,800    485,100    554,400    623,700
1,100,000  254,100   338,800   423,500    508,200    592,900    677,600    762,300
1,300,000  300,000   400,400   500,500    600,600    700,700    800,800    900,900
1,500,000  346,500   462,200   577,500    693,000    808,500    924,000  1,039,500
- ----------------------------------------------------------------------------------
</TABLE>

Marathon Oil Company provides retirement benefits based on final earnings.
The following table shows the annual pension benefits for retirement at age
65 for various levels of eligible earnings which would be payable to
employees retiring with the years of service shown. The table is based on a
formula of a specified percentage (dependent on years of participation in the
Marathon Oil Company Retirement Plan) of average annual eligible earnings in
the three consecutive years of the ten prior to retirement in which such
earnings were highest.

<TABLE>
<CAPTION>

Final Average
Earnings for Highest
Three Consecutive
Years in Ten-Year
Period Preceding                 Annual Benefits for Years of Service
Retirement

           20 Years   25 Years   30 Years   35 Years  40 Years(1) 45 Years(1)
- -------------------------------------------------------------------------------
<S>        <C>        <C>        <C>        <C>       <C>         <C>
$ 100,000  $ 27,414   $ 34,268   $ 41,122 $   47,975   $   51,402  $   51,402
  300,000    91,414    114,268    137,122    159,975      171,402     171,402
  500,000   155,414    194,268    233,122    271,975      291,402     291,402
  700,000   219,414    274,268    329,122    383,975      411,402     411,402
  900,000   283,414    354,268    425,122    495,975      531,402     531,402
1,100,000   347,414    434,268    521,122    607,975      651,402     651,402
1,300,000   411,414    514,268    617,122    719,975      771,402     771,402
1,500,000   475,414    594,268    713,122    831,975      891,402     891,402
2,000,000   635,414    794,268    953,122  1,111,975    1,191,402   1,191,402
- -------------------------------------------------------------------------------
</TABLE>
(1) Benefits reach their maximum at 37-1/2 years of participation.

Covered earnings include pay for hours worked, pay for allowed hours,
military leave allowance, commissions, 401(k) contributions to the Marathon
Oil Company Thrift Plan and bonuses. These earnings are reported in the
salary and bonus columns of the Summary Compensation Table on page 20. The
benefits reflected above are based upon a straight life annuity form of
benefit and include the applicable Social Security offset as defined by the
Marathon plan. Mr. Beghini and Mr. Giardini retired on October 31, 1999 with
41 years and 42 years of credited participation, respectively. Mr. Sandman
has 20 years of credited participation.

In order to comply with the limitations prescribed by the Internal Revenue
Code, pension benefits will be paid directly by USX or by Marathon when they
exceed the amounts permitted by the Code to be paid from federal income tax
qualified pension plans.

                                                                             33
<PAGE>


CHANGE IN CONTROL ARRANGEMENTS



We believe that if a change in control of USX became possible our key
officers should be encouraged to continue their dedication to their assigned
duties. For that reason, we have entered into agreements with each of the
current officers named in the Summary Compensation Table that provide that,
if an officer's employment is terminated under certain circumstances
following a change in control, the officer will be entitled to the following
severance benefits:

- - a cash payment of up to three times the sum of the officer's current salary
  plus the highest bonus in the three years before the date of termination,
- - a cash payment in settlement of outstanding options,
- - life, disability, accident and health insurance benefits for 24 months after
  termination,
- - a cash payment equal to the actuarial equivalent of the difference between
  amounts receivable by the officer under our pension and welfare benefit plans
  and those which would be payable if (a) the officer had retired as of the
  termination date under conditions entitling a retiree under similar
  circumstances to the highest benefits available under those plans and
  (b) the officer had been absent due to layoff for a year before termination,
- - a cash payment equal to the difference between amounts receivable under our
  savings or thrift plans and amounts which would have been received if the
  officer's savings had been fully vested, and
- - a cash payment of the amount necessary to ensure that the payments listed
  above are not subject to net reduction due to the imposition of federal
  excise taxes.

Each agreement is automatically extended each year unless we notify the
officer that we do not wish it extended. In any event, however, each
agreement continues for two years after a change in control. The severance
benefits are payable if, any time after a change in control, the officer's
employment is terminated for good reason or is terminated for other than
cause or disability. The severance benefits are not payable if termination is
due to the officer's death or disability or occurs after the officer reaches
age 65.

The definition of a change in control for purposes of these agreements is
complex but is summarized as follows. It includes any change in control
required to be reported in response to Item 6 (e) of Schedule 14A under the
Securities Exchange Act of 1934 and provides that a change in control will
have occurred if:

- - any person not affiliated with USX acquires 20 percent or more of the voting
  power of our outstanding securities,
- - the board no longer has a majority made up of (1) individuals who were
  directors on the date of the agreements and (2) new directors (other than
  directors who join the board in connection with an election contest) approved
  by two-thirds of the directors then in office who (a) were directors on the
  date of the agreements or (b) were themselves previously approved by the
  board in this manner,
- - USX merges with another company and USX's stockholders end up with less
  than 50 percent of the voting power of the new entity,
- - our stockholders approve a plan of complete liquidation of USX, or
- - we sell all or substantially all of USX's assets.

34
<PAGE>

SOLICITATION STATEMENT

We will bear the cost of this solicitation of proxies. In addition to
soliciting proxies by mail, our directors, officers and employees may solicit
proxies by telephone, in person or by other means. They will not receive any
extra compensation for this work. We will also make arrangements with
brokerage firms and other custodians, nominees and fiduciaries to forward
proxy solicitation material to the beneficial owners of each class of common
stock, and we will reimburse them for reasonable out-of-pocket expenses that
they incur in connection with forwarding the material.

By order of the Board of Directors,

Dan D. Sandman,
Secretary

March 13, 2000





                                                                             35
<PAGE>

           USX Corporation
           600 Grant Street
           Pittsburgh, PA 15219-4776


[LOGO]




<PAGE>

    USX                                          ATTENDANCE CARD
CORPORATION                             2000 ANNUAL MEETING OF STOCKHOLDERS

You are cordially invited to attend the Annual Meeting of Stockholders on
April 25, 2000.

The Meeting will be held in the Wynfrey Ballroom at the Wynfrey Hotel at
Riverchase Galleria, 1000 Riverchase Galleria, Birmingham, Alabama, 35244 at
10:00 A.M. Central Daylight Time.

Attached is your 2000 Proxy Card. The use of an attendance card is for our
mutual convenience and your right to attend without an attendance card, upon
identification, is not affected.

Dan D. Sandman
SECRETARY

FOR THE PERSONAL USE OF THE NAMED STOCKHOLDER(S) - NOT TRANSFERABLE. PLEASE
PRESENT THIS CARD AT REGISTRATION DESK UPON ARRIVAL.


YOU MAY VOTE BY TOLL-FREE TELEPHONE CALL OR ON THE INTERNET OR BY COMPLETING
   THE ATTACHED PROXY CARD AND RETURNING IT IN THE ACCOMPANYING ENVELOPE

  TO VOTE BY TELEPHONE OR INTERNET USE THE CONTROL NUMBER IN THE BOX BELOW

                           YOUR CONTROL NUMBER

           BY TELEPHONE                           BY INTERNET
                         -----------------------

           TOLL-FREE 1-888-216-1303        www.directvote.com

HAVE YOUR CONTROL NUMBER AVAILABLE WHEN YOU CALL OR VISIT THE INTERNET SITE
AND FOLLOW THE PROMPTS.

VOTING IS AVAILABLE 24 HOURS A DAY, 7 DAYS A WEEK.

DO NOT RETURN THE PROXY CARD IF YOU HAVE VOTED BY TELEPHONE OR INTERNET.

- -----------------------------------------------------------------------------
The undersigned hereby appoint(s) Thomas J. Usher, Robert M. Hernandez and
Paul J. Wilhelm, or any of them, proxies to vote as herein stated on behalf
of the undersigned at the Annual Meeting of Stockholders of USX Corporation
on April 25, 2000 and any adjournment or postponement thereof and upon all
other matters properly coming before the Meeting, including the proposals set
forth in the proxy statement for such Meeting with respect to which the
proxies are instructed to vote as follows:

   Proposals of the Board of Directors--The directors recommend a vote "FOR"

Proposal No. 1--Election of directors--Nominees: (01)Neil R. Armstrong,
(02)Robert M. Hernandez, (03)John F. McGillicuddy, (04)John W. Snow and
(05)Clarence P. Cazalot, Jr.

FOR all nominees                     WITHHOLD AUTHORITY
(except as indicated)     ----       to vote for ALL nominees    ----

   (TO WITHHOLD AUTHORITY TO VOTE FOR ANY INDIVIDUAL NOMINEE STRIKE OUT
                      THAT NOMINEE'S NAME.)

Proposal No. 2--Election of PricewaterhouseCoopers LLP as independent
accountants                  FOR         AGAINST         ABSTAIN
                                 -----           -----           -----
- -----------------------------------------------------------------------------

Signature(s)
            -------------------------------------------------

- -------------------------------------------------------------
                                       Dated             2000
                                             -----------

Please sign exactly as your name appears hereon, including representative
capacity where applicable. Joint owners should both sign.

     I Will Attend The Annual Meeting
- ----

THIS PROXY IS SOLICITED BY THE BOARD OF DIRECTORS AND REPRESENTS YOUR
HOLDINGS OF USX-MARATHON GROUP COMMON STOCK AND/OR USX-U.S. STEEL GROUP
COMMON STOCK. UNLESS OTHERWISE MARKED, PROXIES ARE TO VOTE FOR PROPOSALS 1
AND 2, AND IN THEIR DISCRETION UPON ALL OTHER MATTERS PROPERLY BROUGHT BEFORE
THE MEETING AND ANY ADJOURNMENT OR POSTPONEMENT THEREOF.


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