USX CORP
S-3, 1994-03-31
STEEL WORKS, BLAST FURNACES & ROLLING MILLS (COKE OVENS)
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<PAGE>   1
 
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MARCH 31, 1994
 
                                                      REGISTRATION NO.
================================================================================
                      
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                             ----------------------
 
                                    FORM S-3
                             REGISTRATION STATEMENT
 
                                     UNDER
 
                           THE SECURITIES ACT OF 1933
                           --------------------------
 
                                USX CORPORATION
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                               <C>
                   DELAWARE                                         25-0996816
        (STATE OR OTHER JURISDICTION OF                (I.R.S. EMPLOYER IDENTIFICATION NO.)
        INCORPORATION OR ORGANIZATION)
</TABLE>
 
                                600 GRANT STREET
                         PITTSBURGH, PENNSYLVANIA 15230
                                 (412) 433-1121
   (ADDRESS, INCLUDING ZIP CODE AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF
                   REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
 
                                 DAN D. SANDMAN
                         GENERAL COUNSEL AND SECRETARY
                                600 GRANT STREET
                         PITTSBURGH, PENNSYLVANIA 15230
                                 (412) 433-1121
 (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                             OF AGENT FOR SERVICE)
 
APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO PUBLIC: From time to time
after the effective date of this Registration Statement.
 
   If the only securities being registered on this Form are being offered 
pursuant to dividend or interest reinvestment plans, please check the 
following box. [ ]
   If any of the securities being registered on this Form are to be offered on a
delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, please check the following box. [X]
                                
                      CALCULATION OF REGISTRATION FEE
=============================================================================== 
<TABLE>
<CAPTION>
                                                                   
  TITLE OF EACH CLASS OF         AMOUNT        PROPOSED MAXIMUM    PROPOSED MAXIMUM        AMOUNT OF
SECURITIES TO BE REGISTERED      TO BE          OFFERING PRICE        AGGREGATE           REGISTRATION
                               REGISTERED         PER UNIT(1)      OFFERING PRICE (1)         FEE
<S>                           <C>                <C>                 <C>                      <C>
- ------------------------------------------------------------------------------------------------------
Debt Securities...........    $750,000,000(2)        100%           $750,000,000(2)(3)      $258,621
======================================================================================================
</TABLE>
 
     (1) Estimated solely for the purpose of calculating the registration fee in
accordance with Rule 457 under the Securities Act of 1933.
 
     (2) If any securities are issued at an original issue discount, the
principal amount of securities to be registered will be increased to an amount
sufficient to result in a maximum aggregate offering price of $750,000,000.
 
     (3) Foreign currency denominated securities are included on a U.S. dollar
basis.
 
     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933 OR UNTIL THIS REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.
===============================================================================

<PAGE>   2
 
                                  $750,000,000
 
                                USX CORPORATION
 
                                DEBT SECURITIES
                            -----------------------
 
     USX Corporation ("USX") proposes to issue and offer from time to time
unsecured debt securities (the "Debt Securities") in an aggregate principal
amount or initial public offering price of up to $750,000,000 or the equivalent
thereof in foreign denominated currency (or units based on or related thereto),
which may be issued in one or more separate series on terms to be determined at
the time of sale.
 
     The specific terms of the Debt Securities, including the designation of
each separate series and the aggregate principal amount, maturity, interest
rate, if any, whether fixed or variable (or the manner of calculation thereof),
redemption and sinking fund provisions or other repayment obligations, currency
in which denominated, amounts determined by reference to an index, purchase
price and any listing on a securities exchange, in each case with respect to
each series, will be set forth in the accompanying Prospectus Supplement.
 
     The Debt Securities may be sold by USX to or through underwriters or
directly to other purchasers or through agents or through and to brokers or
dealers acting as underwriters who will be named in the accompanying Prospectus
Supplement along with terms of the public offering, including the offering
price, the principal amounts, if any, to be purchased by underwriters, the
commission or discount to the underwriters and the amount of other expenses
attributable to the issuance and distribution of the Debt Securities.


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


THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE
   SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
      COMMISSION NOR HAS THE SECURITIES AND EXCHANGE COMMISSION
        OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
          ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRE-
               SENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.


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


                 THE DATE OF THIS PROSPECTUS IS MARCH 31, 1994.
<PAGE>   3
 
                             AVAILABLE INFORMATION
 
     USX Corporation ("USX") is subject to the informational requirements of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and, in
accordance therewith, files reports, proxy statements and other information with
the Securities and Exchange Commission (the "Commission"). Such reports, proxy
statements and other information filed by USX can be inspected and copied at the
Public Reference Room of the Commission at Judiciary Plaza, 450 Fifth Street,
N.W., Washington, D.C. 20549, and at the public reference facilities maintained
by the Commission at 7 World Trade Center, Suite 1300, New York, New York 10048,
and Northwestern Atrium Center, 500 West Madison Street, Suite 1400, Chicago,
Illinois 60661. Documents filed by USX can also be inspected at the offices of
the New York Stock Exchange, Inc., the Chicago Stock Exchange and the Pacific
Stock Exchange.
 
     USX has filed a Registration Statement on Form S-3 (the "Registration
Statement") with the Commission pursuant to the Securities Act of 1933, as
amended (the "Securities Act"), covering a maximum of $750,000,000 in aggregate
principal amount or initial public offering price of Debt Securities. This
Prospectus does not contain all the information set forth in the Registration
Statement and the exhibits thereto, to which reference is hereby made.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
     The following documents heretofore filed by USX with the Commission (file
no. 1-5153) are incorporated herein by reference:
 
          (a) Annual Report on Form 10-K for the year ended December 31, 1993.
 
          (b) Current Reports on Form 8-K dated January 21, January 24, February
     2, February 4 and February 14, 1994.
 
     All reports and other documents filed by USX pursuant to Section 13(a),
13(c), 14 or 15(d) of the Exchange Act subsequent to the date of this Prospectus
and prior to the termination of the offering of the Debt Securities shall be
deemed to be incorporated by reference herein. Any statement contained in a
document incorporated or deemed to be incorporated by reference herein shall be
deemed to be modified or superseded for purposes of this Prospectus to the
extent that a statement contained herein or in any other subsequently filed
document which also is incorporated or deemed to be incorporated by reference
herein modifies or supersedes such statement. Any such statement so modified or
superseded shall not be deemed, except as so modified or superseded, to
constitute a part of this Prospectus.
 
     USX undertakes to provide without charge to each person to whom a
Prospectus is delivered, on the written or oral request of such person, a copy
of any or all of the information incorporated by reference in this Prospectus,
other than exhibits to such information (unless such exhibits are specifically
incorporated by reference into the information that this Prospectus
incorporates). Requests for such copies should be directed to the Office of the
Corporate Secretary, USX Corporation, 600 Grant Street, Pittsburgh, Pennsylvania
15219-4776 (telephone: 412-433-2885).
 
                                USX CORPORATION
 
     USX is a diversified company which is principally engaged in the energy
business through its Marathon Group, in the steel business through its U.S.
Steel Group and in the gas gathering and processing business through its Delhi
Group.
 
     USX has three classes of common stock, USX--Marathon Group Common Stock
("Marathon Stock"), USX--U.S. Steel Group Common Stock ("Steel Stock") and
USX--Delhi Group Common Stock ("Delhi Stock"). Each class of common stock is
intended to provide the stockholders of such class with a separate security
reflecting the performance of the related group.
 
     The Marathon Group is engaged in worldwide exploration, production,
transportation and marketing of crude oil and natural gas; and domestic
refining, marketing and transportation of petroleum products.
 
                                        2
<PAGE>   4
 
     The U.S. Steel Group includes U.S. Steel, one of the largest integrated
steel producers in the United States, which is primarily engaged in the
production and sale of a wide range of steel mill products, coke, and taconite
pellets. The U.S. Steel Group also includes the management of mineral resources,
domestic coal mining, engineering and consulting services and technology
licensing. Other businesses that are part of the U.S. Steel Group include real
estate development and management, fencing products, leasing and financing
activities, and a majority interest in a titanium metal products company.
 
     The Delhi Group is engaged in the purchasing, gathering, processing,
transporting and marketing of natural gas. Data with respect to the Delhi Group
for periods prior to October 2, 1992, represent the historical financial data of
the businesses included in the Delhi Group. Such data for periods prior to that
date are included in the Marathon Group.
 
GROUP HIGHLIGHTS
 
     The following is a three-year summary of financial highlights for the
groups:
 
<TABLE>
<CAPTION>
                                                                     OPERATING
                                                                      INCOME         ASSETS
                                                           SALES     (LOSS)(A)    (AT YEAR-END)
                                                          -------    ---------    -------------
                                                                       (MILLIONS)
         <S>                                              <C>        <C>          <C>
         Marathon Group (b)
             1993......................................   $11,962       $ 169        $10,806
             1992......................................    12,782         304         11,141
             1991......................................    13,975         358         11,644
         U.S. Steel Group
             1993......................................   $ 5,612       $(149)       $ 6,616
             1992......................................     4,919        (241)         6,251
             1991......................................     4,864        (617)         5,627
         Delhi Group (c)
             1993......................................   $   535       $  36        $   580
             1992......................................       458          33            565
             1991......................................       423          31            584
         Eliminations
             1993......................................   $   (45)      $  --        $  (628)
             1992......................................      (346)        (26)          (705)
             1991......................................      (437)        (31)          (816)
         Total USX Corporation
             1993......................................   $18,064       $  56        $17,374
             1992......................................    17,813          70         17,252
             1991......................................    18,825        (259)        17,039
</TABLE>
 
- ---------
 
(a) Includes the following: a $342 million charge related to the Lower Lake Erie
    Iron Ore Antitrust Litigation against a former USX subsidiary, the Bessemer
    & Lake Erie Railroad, for the U.S. Steel Group in 1993; restructuring
    charges of $42 million, $10 million and $402 million for the U.S. Steel
    Group in 1993, 1992 and 1991, respectively; restructuring charges of $115
    million and $24 million for the Marathon Group in 1992 and 1991,
    respectively; and inventory market valuation charges (credits) for the
    Marathon Group of $241 million, $(62) million and $260 million in 1993, 1992
    and 1991, respectively.
 
(b) Includes sales and operating income for the businesses comprising the Delhi
    Group for periods prior to October 2, 1992, and assets related to the
    businesses comprising the Delhi Group at year-end 1991.
 
(c) Includes historic sales, operating income and assets for the businesses
    included in the Delhi Group which, prior to October 2, 1992, were included
    in the Marathon Group.
 
     USX continues to include consolidated financial information in its periodic
reports required by the Exchange Act, in its annual shareholder reports and in
other financial communications. The consolidated financial statements are
supplemented with separate financial statements of the Marathon Group, the U.S.
 
                                        3
<PAGE>   5
 
Steel Group and the Delhi Group, together with the related Management's
Discussion and Analyses, descriptions of business and other financial and
business information to the extent such information is required to be presented
in the report being filed. The financial information of the Marathon Group, the
U.S. Steel Group and the Delhi Group, taken together, includes all accounts
which comprise the corresponding consolidated financial information of USX.
 
     For consolidated financial reporting purposes, USX's reportable industry
segments correspond with its three groups. The attribution of assets,
liabilities (including contingent liabilities) and stockholders' equity among
the Marathon Group, the U.S. Steel Group and the Delhi Group for the purpose of
preparing their respective financial statements does not affect legal title to
such assets or responsibility for such liabilities. Holders of Marathon Stock,
Steel Stock and Delhi Stock are holders of common stock of USX and continue to
be subject to all of the risks associated with an investment in USX and all of
its businesses and liabilities. Financial impacts arising from any of the groups
which affect the overall cost of USX's capital could affect the results of
operations and financial condition of all groups. Accordingly, the USX
consolidated financial information should be read in connection with the
Marathon Group, the U.S. Steel Group and the Delhi Group financial information.
 
     USX was incorporated in 1901 and is a Delaware corporation. Its executive
offices are located at 600 Grant St., Pittsburgh, PA 15219-4776 (tel: (412)
433-1121). The term "USX" when used herein refers to USX Corporation or USX
Corporation and its subsidiaries, as required by the context.
 
                       RATIO OF EARNINGS TO FIXED CHARGES
 
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                 YEAR ENDED DECEMBER 31,
                                                           ------------------------------------
                                                           1993    1992    1991    1990    1989
                                                           ----    ----    ----    ----    ----
    <S>                                                    <C>     <C>     <C>     <C>     <C>
    Ratio of earnings to fixed charges..................   (a)     (a)     (a)     2.80    2.57
                                                           ===     ===     ===     ====    ====
                                                           
</TABLE>
 
- ---------
 
(a) Earnings did not cover fixed charges by $281 million for 1993, by $197
    million for 1992 and by $681 million for 1991.
 
                                USE OF PROCEEDS
 
     USX intends to use the net proceeds from the sale of the Debt Securities
for general corporate purposes, the refunding of outstanding long-term
indebtedness and other financial obligations, rate management and leveling of
its debt maturity schedule.
 
                       DESCRIPTION OF THE DEBT SECURITIES
 
     The Debt Securities will be general unsecured obligations of USX and will
rank pari passu with the other general unsecured obligations of USX. The Debt
Securities will be issued under an Indenture dated March 15, 1993 between PNC
Bank, National Association (the "Trustee") and USX (the "Indenture"). A copy of
the Indenture is filed as an exhibit to the Registration Statement. The
following summaries of certain provisions of the Indenture do not purport to be
complete and are qualified in their entirety by reference to the provisions of
the Indenture, which are incorporated by reference herein. Certain capitalized
terms used herein are defined in the Indenture. The Section numbers referred to
in the following summaries are references to relevant sections of the Indenture.
 
GENERAL
 
     The Indenture does not limit the principal amount of Debt Securities or
other indebtedness which may be issued by USX.
 
                                        4
<PAGE>   6
 
     The Debt Securities of any Series may be issued in definitive form or, if
provided in the Prospectus Supplement relating thereto, may be represented in
whole or in part by a Global Security or Securities, registered in the name of a
Depositary designated by USX. Each Debt Security represented by a Global
Security is referred to herein as a "Book-Entry Security."
 
     Debt Securities may be issued from time to time in an aggregate principal
amount or initial public offering price of up to $750,000,000 or the equivalent
thereof in foreign denominated currency or units based on or relating to foreign
denominated currencies, including European Currency Units ("ECU"), and will be
offered independently or together on terms determined by market conditions at
the time of sale. The Debt Securities may be issued in one or more series with
the same or various maturities and may be sold at par, a premium or an original
issue discount. Debt Securities sold at an original issue discount may bear no
interest or interest at a rate which is below market rates.
 
     Reference is made to the Prospectus Supplement for the specific terms of
the Debt Securities offered hereby, including the following (to the extent
applicable to a particular series of Debt Securities): (i) designation,
aggregate principal amount, purchase price (expressed as a percentage of the
principal amount thereof), and denomination; (ii) date of maturity; (iii) if
other than currency of the United States, the currency or units based on or
relating to currencies for which Debt Securities may be purchased and in which
principal and any premium or interest will or may be payable; (iv) interest rate
or rates (or the manner of calculation thereof), if any; (v) the times at which
any such interest will be payable; (vi) the place or places where principal and
any premium and interest will be payable; (vii) any redemption or sinking fund
provisions or other repayment obligations and any remarketing arrangements
related thereto; (viii) any index used to determine the amount of payment of
principal of and any premium and interest on the Debt Securities; (ix) the
application, if any, of the defeasance provisions to the Debt Securities; (x) if
other than the principal amount thereof, the portion of the principal amount of
the Debt Securities which shall be payable upon declaration of acceleration of
the maturity thereof; (xi) if other than 100% of the principal amount thereof
plus accrued interest, the Change in Control Purchase Price or Prices applicable
to purchases of Debt Securities upon the occurrence of a Change in Control;
(xii) whether the Debt Securities will be issued in whole or in part in the form
of one or more Global Securities and, in such case, the Depositary for such
Global Securities; and (xiii) any other specific terms of the Debt Securities,
including any terms which may be required by or advisable under United States
laws or regulations.
 
     Except with respect to Book-Entry Securities, Debt Securities may be
presented for exchange or registration of transfer, in the manner, at the places
and subject to the restrictions set forth in the Debt Securities and the
Prospectus Supplement. Such services will be provided without charge, other than
any tax or other governmental charge payable in connection therewith, but
subject to the limitations provided in the Indenture. For a description of
payments of principal of and any premium and interest on, and transfer of,
Book-Entry Securities, and exchanges of Global Securities representing
Book-Entry Securities, see "Book-Entry Securities."
 
CERTAIN COVENANTS OF USX
 
  Creation of Certain Liens
 
     If USX or any Subsidiary of USX shall mortgage, pledge, encumber or subject
to a lien, (hereinafter to "Mortgage" or a "Mortgage," as the context may
require) as security for any indebtedness for money borrowed (i) any blast
furnace facility or raw steel producing facility, or rolling mills which are a
part of a plant which includes such a facility, or (ii) any property capable of
producing oil or gas; and which, in either case, is located in the United States
and is determined to be a principal property by the Board of Directors of USX in
its discretion, USX will secure or will cause such Subsidiary to secure each
Series of the Debt Securities equally and ratably with all indebtedness or
obligations secured by the Mortgage then being given and with any other
indebtedness of USX or such Subsidiary then entitled thereto; provided, however,
that this covenant shall not apply in the case of: (a) any Mortgage existing on
the date of the Indenture (whether or not such Mortgage includes an
after-acquired property provision); (b) any Mortgage, including a purchase money
Mortgage, incurred in connection with the acquisition of any property (any
Mortgage incurred within 180 days
 
                                        5
<PAGE>   7
 
after such acquisition or the completion of construction shall be deemed to be
in connection with such acquisition), the assumption of any Mortgage previously
existing on such acquired property or any Mortgage existing on the property of
any corporation when it becomes a Subsidiary of USX; (c) any Mortgage on such
property in favor of the United States, or any State, or instrumentality of
either, to secure partial, progress or advance payments to USX or any Subsidiary
of USX pursuant to the provisions of any contract or any statute; (d) any
Mortgage on such property in favor of the United States, any State, or
instrumentality of either, to secure borrowings for the purchase or construction
of the property Mortgaged; (e) any Mortgage in connection with a sale or other
transfer of oil or gas in place for a period of time or in an amount such that
the purchaser will realize therefrom a specified amount of money or specified
amount of minerals or any interest in property of the character commonly
referred to as an "oil payment" or "production payment"; (f) any Mortgage on any
property arising in connection with or to secure all or any part of the cost of
the repair, construction, improvement, alteration, exploration, development or
drilling of such property or any portion thereof; (g) any Mortgage on any
pipeline, gathering system, pumping or compressor station, pipeline storage
facility, other pipeline facility, drilling equipment, drilling platform,
drilling barge, any movable railway, marine or automotive equipment, gas plant,
office building, storage tank, or warehouse facility, any of which is located on
any property included under clause (ii) above; (h) any Mortgage on any equipment
or other personal property used in connection with any property included under
clause (ii) above; (i) any Mortgage on any property included under clause (ii)
above arising in connection with the sale of accounts receivable resulting from
the sale of oil or gas at the wellhead; or (j) any renewal of or substitution
for any Mortgage permitted under the preceding clauses. Notwithstanding the
foregoing, USX may and may permit its Subsidiaries to grant Mortgages or incur
liens on property covered by the restriction described above so long as the net
book value of the property so encumbered, together with all property subject to
the restriction on certain sale and leasebacks described below, does not at the
time such Mortgage or lien is granted exceed five percent (5%) of Consolidated
Net Tangible Assets, (as such term is defined in the Indenture). (Section 4.03)
 
     "Consolidated Net Tangible Assets" means the aggregate value of all assets
of USX and its subsidiaries after deducting therefrom (a) all current
liabilities (excluding all long-term debt due within one year), (b) all
investments in unconsolidated subsidiaries and all investments accounted for on
the equity basis and (c) all goodwill, patent and trademarks, unamortized debt
discount and other similar intangibles (all determined in conformity with
generally accepted accounting principles and calculated on a basis consistent
with USX's most recent audited consolidated financial statements). (Section
1.01)
 
     As of the date of this Prospectus, neither USX nor any subsidiary of USX
has any property referred to in either clause (i) or (ii) above and under
"Limitations on Certain Sales and Leasebacks" below that has been determined by
the Board of Directors of USX to be a principal property.
 
  Limitations on Certain Sale and Leasebacks
 
     USX will not, nor will it permit any Subsidiary to, sell or transfer (i)
any blast furnace facility or raw steel producing facility, or rolling mills
which are a part of a plant which includes such a facility or (ii) any property
capable of producing oil or gas; and which, in either case, is located in the
United States, and is determined to be a principal property by the Board of
Directors of USX in its discretion with the intention of taking back a lease,
thereof, provided, however, this covenant shall not apply if (a) the lease is to
a Subsidiary (or to USX in the case of a Subsidiary); (b) the lease is for a
temporary period by the end of which it is intended that the use of the property
by the lessee will be discontinued; (c) USX or a Subsidiary could, in accordance
with Section 4.03, described above, Mortgage such property without equally and
ratably securing the Debt Securities; (d) the transfer is incident to or
necessary to effect any operating, farm out, farm in, unitization, acreage
exchange, acreage contributions, bottom hole or dry hole arrangements or pooling
agreement or any other agreement of the same general nature relating to the
acquisition, exploration, maintenance, development and operation of oil and gas
properties in the ordinary course of business or as required by regulatory
agencies having jurisdiction over the property; or (e) USX promptly informs the
Trustee of such sale, the net proceeds of such sale are at least equal to the
fair value (as determined by resolution adopted by the Board of Directors of
USX) of such property and USX within 180 days after such sale applies an amount
equal to such net proceeds (subject to reduction by reason of credits to which
USX is entitled, under the conditions specified in
 
                                        6
<PAGE>   8
 
the Indenture) to the retirement or in substance defeasance of funded debt of
USX or a Subsidiary. (Section 4.04)
 
  Merger and Consolidation
 
     USX will not merge or consolidate with any other corporation or sell or
convey all or substantially all of its assets to any person, firm or
corporation, except that USX may merge or consolidate with, or sell or convey
all or substantially all of its assets to, any other corporation, provided that
(i) USX shall be the continuing corporation or the successor corporation (if
other than USX, as the case may be) shall be a corporation organized and
existing under the laws of the United States of America or a State thereof and
such corporation shall expressly assume the due and punctual payment of the
principal of and any premium and interest on all the Debt Securities, according
to their tenor, and the due and punctual performance and observance of all of
the covenants and conditions of the Indenture to be performed by USX and (ii)
USX or such successor corporation, as the case may be, shall not, immediately
after such merger, consolidation, sale or conveyance, be in default in the
performance of any such covenant or condition and no event which with the lapse
of time, the giving of notice or both would constitute an Event of Default shall
have occurred and be continuing. (Section 11.01)
 
     If upon any consolidation or merger of USX with or into any other
corporation, or upon any sale or conveyance of substantially all of the
properties of USX, or upon any acquisition by USX of all or any part of the
property of another corporation, any property owned immediately prior thereto
would thereupon become subject to any mortgage, lien, pledge, charge or
encumbrance, USX, prior to such event, will secure the Debt Securities (equally
and ratably with any other indebtedness of USX secured thereby) by a lien on all
of such property of USX, prior to all liens, charges and encumbrances other than
any theretofore existing thereon. (Section 11.03)
 
PURCHASE OF DEBT SECURITIES UPON A CHANGE IN CONTROL
 
     In the event of any Change in Control (as defined below) of USX, each
holder of Debt Securities will have the right, at that holder's option, subject
to the terms and conditions of the Indenture, to require USX to become obligated
to purchase all of that holder's Debt Securities on the date that is 35 Business
Days after the occurrence of such Change in Control (the "Change in Control
Purchase Date") at a cash price equal to (i) unless otherwise specified in the
terms of such Debt Securities, 100% of the principal amount thereof, together
with accrued interest to such Change in Control Purchase Date (except that
interest installments due prior to such Change in Control Purchase Date will be
payable to the holders of such Debt Securities of record at the close of
business on the relevant record dates according to their terms and the
provisions of the Indenture), or (ii) such other price or prices as may be
specified in the terms of such Debt Securities (the "Change in Control Purchase
Price"). (Section 4.07)
 
     Within 15 Business Days after a Change in Control, USX is obligated to mail
to the Trustee and to all holders of Debt Securities of any Series at their
addresses shown in the Debt Security register (and to beneficial owners as
required by applicable law) a notice regarding the Change in Control, stating,
among other things: (i) the last date on which the Change in Control purchase
right may be exercised, (ii) the Change in Control Purchase Price, (iii) the
Change in Control Purchase Date, (iv) the name and address of the Paying Agent,
and (v) the procedures that holders must follow to exercise these rights. USX
will cause a copy of such notice to be published in a daily newspaper of
national circulation. (Section 4.07)
 
     To exercise this right, a holder of Debt Securities of any Series must
deliver a Change in Control Purchase Notice to the Paying Agent for that Series
at its address set forth in USX's notice regarding the Change in Control at any
time prior to the close of business on the Change in Control Purchase Date. The
Change in Control Purchase Notice shall state (i) the certificate numbers of the
Debt Securities to be delivered by the holder thereof for purchase by USX and
(ii) that such Debt Securities are to be purchased by USX pursuant to the
applicable provisions of the Debt Securities and USX's notice regarding the
Change in Control. (Section 4.07)
 
                                        7
<PAGE>   9
 
     Upon receipt by USX of the Change in Control Purchase Notice, the holder of
the Debt Security in respect of which such notice was given shall (unless such
notice is withdrawn as specified in the Indenture) thereafter be entitled to
receive solely the Change in Control Purchase Price with respect to such Debt
Security. Any Change in Control Purchase Notice may be withdrawn by the holder
of Debt Securities of any Series by a written notice of withdrawal delivered to
the Paying Agent for that Series at any time prior to the close of business on
the Change in Control Purchase Date. The notice of withdrawal shall state the
certificate numbers of the Debt Securities as to which the withdrawal notice
relates. (Section 4.08)
 
     Payment of the Change in Control Purchase Price for a Debt Security of any
Series for which a Change in Control Purchase Notice has been delivered and not
withdrawn is conditioned upon delivery of such Debt Security (together with
necessary endorsements) to the Paying Agent for that Series at its address set
forth in USX's notice regarding the Change in Control, at any time (whether
prior to, on or after the Change in Control Purchase Date) after the delivery of
such Change in Control Purchase Notice. (Section 4.07) Payment of the Change in
Control Purchase Price for such Debt Security will be made promptly following
the later of the Change in Control Purchase Date or the time of delivery of such
Debt Security. (Section 4.08)
 
     Under the Indenture, a "Change in Control" of USX is deemed to have
occurred at such time as (i) any "person" or "group" of persons (excluding USX,
any Subsidiary, any employee stock ownership plan or any other employee benefit
plan of USX) shall have acquired "beneficial ownership" (within the meaning of
Section 13(d) or 14(d) of the Exchange Act and the applicable rules and
regulations thereunder) of shares of Voting Stock representing at least 35% of
the outstanding Voting Power of USX, (ii) during any period of twenty-five
consecutive months, commencing before or after the date of the Indenture,
individuals who at the beginning of such twenty-five month period were directors
of USX (together with any replacement or additional directors whose election was
recommended by incumbent management of USX or who were elected by a majority of
directors then in office) cease to constitute a majority of the board of
directors of USX, or (iii) any person or group of related persons shall acquire
all or substantially all of the assets of USX; provided, that a Change in
Control shall not be deemed to have occurred pursuant to clause (iii) above if
USX shall have merged or consolidated with or transferred all or substantially
all of its assets to another corporation in compliance with the provisions of
Section 11.01 of the Indenture (relating to when USX may merge or transfer
assets) and the surviving or successor or transferee corporation is no more
leveraged than was USX immediately prior to such event. For purposes of this
definition, the term "leveraged" when used with respect to any corporation shall
mean the percentage represented by the total assets of that corporation divided
by its stockholders' equity, in each case determined and as would be shown in a
consolidated balance sheet of such corporation prepared in accordance with
generally accepted accounting principles in the United States of America. The
term "substantially all" in clause (iii) above has not been quantified for
purposes of defining Change in Control and, depending upon the factual
circumstances, there may be uncertainty as to when a Change in Control has
occurred for purposes of determining the rights of holders of Debt Securities
pursuant to this provision.
 
     Notwithstanding the foregoing, a Change in Control will not be deemed to
have occurred by virtue of (i) USX, any Subsidiary of USX, any employee stock
ownership plan or any other employee benefit plan of USX or any such Subsidiary,
or any Person holding Voting Stock for or pursuant to the terms of any such
employee benefit plan, acquiring beneficial ownership of shares of Voting Stock,
whether representing 35% or more of the outstanding Voting Power of USX or
otherwise or (ii) any Person whose ownership of shares of Voting Stock
representing 35% or more of the outstanding Voting Power of USX results solely
from USX's calculation from time to time of the relative voting rights of
Marathon Stock, Steel Stock and Delhi Stock.
 
     "Voting Stock" means stock of USX of any class or classes (however
designated) having ordinary voting power for the election of the directors of
USX, other than stock having such power only by reason of the happening of a
contingency. "Voting Power" means the total voting power represented by all
outstanding shares of all classes of Voting Stock. (Section 4.07)
 
     In the event a Change in Control occurs, USX intends to comply with any
applicable securities laws or regulations, including any applicable requirements
of Rule 14e-1 under the Exchange Act. The Change in Control purchase feature of
the Debt Securities may in certain circumstances make more difficult or
 
                                        8
<PAGE>   10
 
discourage a takeover of USX. The Change in Control purchase feature, however,
is not the result of management's knowledge of any specific effort to accumulate
shares of Common Stock or to obtain control of USX by means of a merger, tender
offer, solicitation or otherwise, or part of a plan by management to adopt a
series of anti-takeover provisions. The Change in Control purchase feature is
similar to that contained in other debt offerings of USX as a result of
negotiations between USX and the underwriters thereof.
 
     Except as described above, the Change in Control purchase feature does not
afford holders of the Debt Securities protection against possible adverse
effects of a reorganization, restructuring, merger or similar transaction
involving USX.
 
     Although USX's existing indebtedness does not limit USX's ability to
purchase Debt Securities, USX's ability to purchase Debt Securities in the
future may be limited by the terms of any then existing borrowing arrangements
and by its financial resources.
 
EVENTS OF DEFAULT
 
     An Event of Default with respect to Debt Securities of any Series is
defined in the Indenture as being: (i) default in the payment of the principal
of or premium, if any, on any of the Debt Securities of such Series when due and
payable; (ii) default in the payment of interest on the Debt Securities of such
Series when due, continuing for 30 days; (iii) default in the payment of the
Change in Control Purchase Price of any of the Debt Securities of such Series as
and when the same shall become due and payable; (iv) default in the deposit of
any sinking fund payment with respect to any Debt Security of such Series when
due; (v) failure by USX in the performance of any other covenant or agreement in
the Debt Securities of such Series or in the Indenture continued for a period of
90 days after notice of such failure as provided in the Indenture; (vi) certain
events of bankruptcy, insolvency, or reorganization with respect to USX; or
(vii) any other Event of Default provided with respect to Debt Securities of
that Series. (Section 6.01)
 
     USX is required annually to deliver to the Trustee officers' certificates
stating whether or not the signers have any knowledge of any default in the
performance by USX of certain covenants. (Section 4.06)
 
     In case an Event of Default shall occur and be continuing with respect to
any Series, the Trustee or the holders of not less than 25% in principal amount
of the Debt Securities of such Series then outstanding may declare the Debt
Securities of such Series to be due and payable. (Section 6.01) The Trustee is
required to give holders of the Debt Securities of any Series written notice of
a default with respect to such Series as and to the extent provided by the Trust
Indenture Act. (Section 6.07)
 
     If, however, at any time after the Debt Securities of such Series have been
declared due and payable, and before any judgment or decree for the moneys due
has been obtained or entered, USX shall pay or deposit with the Trustee amounts
sufficient to pay all matured installments of interest upon the Debt Securities
of such Series and the principal of all Debt Securities of such Series which
shall have become due, otherwise than by acceleration, together with interest on
such principal and, to the extent legally enforceable, on such overdue
installments of interest and all other amounts due under the Indenture shall
have been paid, and any and all defaults with respect to such Series under the
Indenture shall have been remedied, then the holders of a majority in aggregate
principal amount of the Debt Securities of such Series then outstanding, by
written notice to USX and the Trustee, may waive all defaults with respect to
such Series and rescind and annul the declaration that the Debt Securities of
such Series are due and payable. (Section 6.01) In addition, prior to any such
declaration that the Debt Securities of such Series are due and payable, the
holders of a majority in aggregate principal amount of the Debt Securities of
such Series may waive any past default and its consequences with respect to such
Series, except a default in the payment of the principal of or any premium or
interest on any Debt Securities of such Series. (Section 6.06)
 
     The Trustee is under no obligation to exercise any of the rights or powers
under the Indenture at the request, order or direction of any of the holders of
Debt Securities, unless such holders shall have offered to the Trustee
reasonable security or indemnity. (Section 7.02) Subject to such provisions for
the indemnification of the Trustee and certain limitations contained in the
Indenture, the holders of a majority in aggregate principal amount of the Debt
Securities of each Series at the time outstanding shall have the right to direct
the
 
                                        9
<PAGE>   11
 
time, method and place of conducting any proceeding for any remedy available to
the Trustee, or exercising any trust or power conferred on the Trustee, with
respect to the Debt Securities of such Series. (Section 6.06)
 
MODIFICATION OF THE INDENTURE
 
     The Indenture contains provisions permitting USX and the Trustee to modify
the Indenture or enter into or modify any supplemental indenture without the
consent of the holders of the Debt Securities in regard to matters as shall not
adversely affect the interests of the holders of the Debt Securities, including,
without limitation, the following: (a) to evidence the succession of another
corporation to USX; (b) to add to the covenants of USX further covenants,
restrictions, conditions or provisions for the benefit or protection of the
holders of any or all Series of Debt Securities or to surrender any right or
power conferred upon USX by the Indenture; (c) to cure any ambiguity or to
correct or supplement any provision of the Indenture (or supplements) which may
be defective or inconsistent with any other provision in the Indenture (or
supplements); to convey, transfer, assign, mortgage or pledge any property to or
with the Trustee; or to make such other provisions in regard to matters or
questions arising under the Indenture as shall not adversely affect the
interests of the holders of the Debt Securities then outstanding; (d) to add to,
change or eliminate any of the provisions of the Indenture in respect of one or
more Series of Debt Securities thereunder, under certain conditions specified
therein; (e) to evidence the appointment of a successor trustee and to add to or
change provisions of the Indenture necessary to provide for or facilitate the
administration of the trusts under the Indenture by more than one trustee; (f)
to set forth the form and any terms of any Series of Debt Securities which USX
and the Trustee deem necessary or desirable to include in a supplemental
indenture; and (g) to add to or change any of the provisions of the Indenture to
such extent as shall be necessary or desirable to permit or facilitate the
issuance of Debt Securities in bearer form, registrable or not registrable as to
principal, and with or without interest coupons. USX and the Trustee may
otherwise modify the Indenture or any supplemental indenture with the consent of
the holders of not less than 66 2/3% in aggregate principal amount of each
Series of Debt Securities affected thereby at the time outstanding, except that
no such modifications shall (i) extend the fixed maturity of any Debt
Securities, or reduce the principal amount thereof or reduce the rate or extend
the time of payment of any premium or interest thereon, or change the currency
in which the Debt Securities are payable, without the consent of the holder of
each Debt Security so affected, or (ii) reduce the aforesaid percentage of Debt
Securities of any Series, the consent of the holders of which is required for
any such modifications or supplemental indenture, without the consent of the
holders of all Debt Securities affected thereby then outstanding. (Article Ten)
 
SATISFACTION AND DISCHARGE; DEFEASANCE AND COVENANT DEFEASANCE
 
     The Indenture shall be satisfied and discharged if (i) USX shall deliver to
the Trustee all Debt Securities then outstanding for cancellation or (ii) all
Debt Securities shall have become due and payable or are to become due and
payable within one year and USX shall deposit an amount sufficient to pay the
principal, premium, if any, and interest to the date of maturity, provided that
in either case USX shall have paid all other sums payable under the Indenture.
(Section 12.01)
 
     The Indenture provides, if such provision is made applicable to the Debt
Securities of a Series, that USX may elect either (A) to defease and be
discharged from any and all obligations with respect to any Debt Security of
such Series (except for the obligations to register the transfer or exchange of
such Debt Security, to replace temporary or mutilated, destroyed, lost or stolen
Debt Securities, to maintain an office or agency in respect of the Debt
Securities and to hold moneys for payment in trust) ("defeasance") or (B) to be
released from its obligations with respect to such Debt Security under Sections
4.03, 4.04, 4.07, 4.09, 11.01 and 11.03 of the Indenture (being the restrictions
described above under "Certain Covenants of USX" and USX's obligations described
under "Purchase of Debt Securities upon a Change in Control") and (ii) that
Sections 6.01(d), 6.01(e) (as to Sections 4.03, 4,04, 4.07, 4.09, 11.01 and
11.03) and 6.01(h), as described in clauses (iv), (v) and (vii) under "Events of
Default" above, shall not be deemed to be Events of Default under the Indenture
with respect to such Series ("covenant defeasance"), upon the deposit with the
Trustee (or other qualifying trustee), in trust for such purpose, of money
and/or Government Obligations (as defined) which through the payment of
principal and interest in accordance with their terms will provide money, in an
 
                                       10
<PAGE>   12
 
amount sufficient to pay the principal of (and premium, if any) and interest on
such Debt Security, on the scheduled due dates therefor. In the case of
defeasance, the holders of such Debt Securities are entitled to receive payments
in respect of such Debt Securities solely from such Trust. Such a trust may only
be established if, among other things, USX has delivered to the Trustee an
Opinion of Counsel (as specified in the Indenture) to the effect that the
holders of the Debt Securities affected thereby will not recognize income, gain
or loss for Federal income tax purposes as a result of such defeasance or
covenant defeasance and will be subject to Federal income tax on the same
amounts, in the same manner and at the same times as would have been the case if
such defeasance or covenant defeasance had not occurred. Such Opinion of
Counsel, in the case of defeasance under clause (A) above, must refer to and be
based upon a ruling of the Internal Revenue Service or a change in applicable
Federal income tax law occurring after the date of the Indenture. (Section
12.02)
 
RECORD DATES
 
     The Indenture provides that in certain circumstances USX or the Trustee may
establish a record date for determining the holders of outstanding Debt
Securities of a Series entitled to join in the giving of notice or the taking of
other action under the Indenture by the holders of the Debt Securities of such
Series.
 
BOOK-ENTRY SECURITIES
 
     The following description of Book-Entry Securities will apply to any Series
of Debt Securities issued in whole or in part in the form of a Global Security
or Securities except as otherwise provided in the Prospectus Supplement relating
thereto.
 
     Upon issuance, all Book-Entry Securities of like tenor and having the same
date of original issue will be represented by a single Global Security. Each
Global Security representing Book-Entry Securities will be deposited with, or on
behalf of, the Depositary, which will be a clearing agent registered under the
Exchange Act. The Global Security will be registered in the name of the
Depositary or a nominee of the Depositary.
 
     Ownership of beneficial interest in a Global Security representing
Book-Entry Securities will be limited to institutions that have accounts with
the Depositary or its nominee ("participants") or persons that may hold
interests through participants. In addition, ownership of beneficial interests
by participants in such a Global Security will only be evidenced by, and the
transfer of that ownership interest will only be effected through, records
maintained by the Depositary or its nominee for such Global Security. Ownership
of beneficial interest in such a Global Security by persons that hold through
participants will only be evidenced by, and the transfer of that ownership
interest within such participant will only be effected through, records
maintained by such participant. The laws of some jurisdictions require that
certain purchasers of securities take physical delivery of such securities in
definitive form. Such laws may impair this ability to transfer beneficial
interests in such a Global Security.
 
     Payment of principal of and any premium and interest on Book-Entry
Securities represented by any Global Security registered in the name of or held
by the Depositary or its nominee will be made to the Depositary or its nominee,
as the case may be, as the registered owners and holder of the Global Security
representing such Book-Entry Securities. None of USX, the Trustee or any agent
of USX or the Trustee will have any responsibility or liability for any aspect
of the Depositary's records or any participant's records relating to or payments
made on account of beneficial ownership interests in a Global Security
representing such Book-Entry Securities or for maintaining, supervising or
reviewing any of the Depositary's records or any participant's records relating
to such beneficial ownership interests. Payments by participants to owners of
beneficial interests in a Global Security held through such participants will be
governed by the Depositary's procedures, as is now the case with securities held
for the accounts of customers registered in "street name," and will be the sole
responsibility of such participants.
 
     No Global Security may be transferred except as a whole by the Depositary
for such Global Security to a nominee of the Depositary or by a nominee of the
Depositary to the Depositary or another nominee of the Depositary.
 
                                       11
<PAGE>   13
 
     A Global Security representing Book-Entry Securities of any Series is
exchangeable for definitive Debt Securities of such Series in registered form,
of like tenor and of an equal aggregate principal amount, only if (a) the
Depositary notifies USX that it is unwilling or unable to continue as Depositary
for such Global Security or the Depositary ceases to be a clearing agency
registered under the Exchange Act, (b) USX in its sole discretion determines
that such Global Security shall be exchangeable for definitive Debt Securities
in registered form, or (c) there shall have occurred and be continuing an Event
of Default with respect to the Debt Securities of that Series. Any Global
Security that is exchangeable pursuant to the preceding sentence shall be
exchangeable in whole for definitive Debt Securities in registered form, of like
tenor and of an equal aggregate principal amount, and in the authorized
denominations for that Series. Such definitive Debt Securities shall be
registered in the name or names of such person or persons as the Depositary
shall instruct the Trustee. It is expected that such instructions may be based
upon directions received by the Depositary from its participants with respect to
ownership of beneficial interests in such Global Security.
 
     Except as provided above, owners of beneficial interests in such Global
Security will not be entitled to receive physical delivery of Debt Securities in
definitive form and will not be considered the holders thereof for any purpose
under the Indenture, and no Global Security representing Book-Entry Securities
shall be exchangeable, except for another Global Security of like denomination
and tenor to be registered in the name of the Depositary or its nominee.
Accordingly, each person owning a beneficial interest in such Global Security
must rely on the procedures of the Depositary and, if such person is not a
participant, on the procedures of the participant through which such person owns
its interest, to exercise any rights of a holder under the Indenture. USX
understands that under existing industry practices, in the event that USX
requests any action of holders or an owner of a beneficial interest in such
Global Security desires to give or take any action that a holder is entitled to
give or take under the Indenture, the Depositary would authorize the
participants holding the relevant beneficial interests to give or take such
action, and such participants would authorize beneficial owners owning through
such participant to give or take such action or would otherwise act upon the
instructions of beneficial owners owning through them.
 
CONCERNING THE TRUSTEE
 
     PNC Bank, National Association is also trustee for Marathon Oil Company's
9 3/4% Guaranteed Notes due 1999 and 7% Monthly Interest Guaranteed Noted due
2002, both of which are guaranteed by USX, for eighteen series of obligations
issued by various governmental authorities relating to environmental projects at
various Company facilities and for an aggregate principal amount of
$2,550,000,000 of debt securities issued by USX under Indentures between USX and
the Trustee dated July 1, 1991 and March 15, 1993. USX and its subsidiaries
maintain ordinary banking relationships, including loans and deposit accounts,
with PNC Bank, National Association and anticipate that they will continue to do
so.
 
                              PLAN OF DISTRIBUTION
 
     USX may sell the Debt Securities to or through underwriters or directly to
purchasers, agents or dealers or through brokers.
 
     Offers to purchase Debt Securities may be solicited directly by USX or
brokers or dealers designated by USX from time to time. Any such broker or
dealer may be deemed to be an underwriter as that term is defined in the
Securities Act, and will be named in the Prospectus Supplement, together with
the compensation payable thereto by USX in connection with the sale of the Debt
Securities.
 
     Underwriters, agents, brokers and dealers may be entitled under agreements
which may be entered into with USX to indemnification by USX against certain
civil liabilities, including liabilities under the Securities Act. Such
underwriters, agents, brokers and dealers may engage in transactions with, or
perform services for, USX in the ordinary course of business.
 
     The place and time of delivery for the Debt Securities in respect of which
this Prospectus is delivered will be set forth in the accompanying Prospectus
Supplement.
 
                                       12
<PAGE>   14
 
                             VALIDITY OF SECURITIES
 
     The validity of the issuance of the Debt Securities will be passed upon for
USX by D. D. Sandman, Esq., General Counsel and Secretary of USX or by Mr. J. A.
Hammerschmidt, Assistant General Counsel and Assistant Secretary of USX. Messrs.
Sandman and Hammerschmidt, in their capacities as General Counsel and Secretary
and Assistant General Counsel and Assistant Secretary, are paid salaries by USX
and participate in various employee benefit plans offered to officers of USX
generally.
 
                                    EXPERTS
 
     The consolidated financial statements of USX, the financial statements of
the Marathon Group, the financial statements of the U.S. Steel Group and the
financial statements of the Delhi Group as of December 31, 1993 and 1992 and for
each of the three years in the period ended December 31, 1993, incorporated in
this Prospectus by reference to the Annual Report on Form 10-K for the year
ended December 31, 1993, have been so incorporated in reliance on the reports
(the report pertaining to the U.S. Steel Group financial statements contains an
explanatory paragraph referring to the U.S. Steel Group's involvement in certain
contingencies as described in Note 26 to the U.S. Steel Group financial
statements) of Price Waterhouse, independent accountants, given on the authority
of such firm as experts in auditing and accounting.
 
                                       13
<PAGE>   15
 

================================================================================
  
   NO PERSON IS AUTHORIZED TO GIVE INFORMATION OR TO MAKE ANY REPRESENTATIONS
OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS, AND, IF GIVEN OR MADE, SUCH
INFORMATION OR REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED.
THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL OR A SOLICITATION OF AN
OFFER TO BUY ANY SECURITIES OTHER THAN THE SECURITIES TO WHICH IT RELATES OR AN
OFFER TO SELL OR A SOLICITATION OF AN OFFER TO BUY ANY SECURITIES IN ANY
CIRCUMSTANCES IN WHICH SUCH AN OFFER OR SOLICITATION IS UNLAWFUL. NEITHER THE
DELIVERY OF THIS PROSPECTUS NOR ANY SALE MADE HEREUNDER SHALL, UNDER ANY
CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THERE HAS BEEN NO CHANGE IN THE
AFFAIRS OF USX SINCE THE DATE OF THIS PROSPECTUS OR THAT THE INFORMATION
CONTAINED OR INCORPORATED BY REFERENCE HEREIN IS CORRECT AS OF ANY TIME SINCE
THE DATE OF SUCH INFORMATION.
                               ------------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                        PAGE
                                        ----
<S>                                     <C>
Available Information................     2
Incorporation of Certain Documents by
  Reference..........................     2
USX Corporation......................     2
Ratio of Earnings to Fixed Charges...     4
Use of Proceeds......................     4
Description of the Debt Securities...     4
Plan of Distribution.................    12
Validity of Securities...............    13
Experts..............................    13
</TABLE>
 
====================================================== 

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

                                      
                                     
                                     USX
                                  
                                 $750,000,000
                                
                                DEBT SECURITIES
                         
           
                         ------------------------------
                                   PROSPECTUS
                         ------------------------------
 


=======================================================
<PAGE>   16
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
<TABLE>
        <S>                                                                  <C>
        Securities and Exchange Commission filing fee.....................   $258,621
        Costs of printing and engraving...................................      5,000
        Accounting fees and expenses......................................     10,000
        Miscellaneous expenses............................................     26,379
                                                                             --------
             Total........................................................   $300,000
                                                                             ========
                                                                             
</TABLE>
 
- ---------
 
All of the foregoing expenses are estimated except for the Securities and
Exchange Commission filing fee.
 
ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
     Article V of USX's By Laws provides that USX shall indemnify to the fullest
extent permitted by law any person who is made or is threatened to be made a
party or is involved in any action, suit, or proceeding whether civil, criminal,
administrative or investigative by reason of the fact that he is or was a
director, officer, employee or agent of USX or was serving at the request of USX
as an officer, director, employee or agent of another corporation, partnership,
joint venture, enterprise, or nonprofit entity.
 
     USX is empowered by Section 145 of the Delaware General Corporation Law,
subject to the procedures and limitations stated therein, to indemnify any
person who was or is a party or is threatened to be made a party to any
threatened, pending or completed action, suit or proceeding, whether civil,
criminal, administrative or investigative (other than an action by or in the
right of USX) by reason of the fact that such person is or was an officer,
employee, agent or director of USX, or is or was serving at the request of USX
as a director, officer, employee or agent of another corporation, partnership,
joint venture, trust or other enterprise against expenses (including attorneys'
fees), judgments, fines and amounts paid in settlement actually and reasonably
incurred by such person in connection with such action, suit or proceeding if he
acted in good faith and in a manner he reasonably believed to be in or not
opposed to the best interests of USX, and, with respect to any criminal action
or proceeding, had no reasonable cause to believe his conduct was unlawful. USX
may indemnify any such person against expenses (including attorneys' fees) in an
action by or in the right of USX under the same conditions, except that no
indemnification is permitted without judicial approval if such person is
adjudged to be liable to USX. To the extent such person is successful on the
merits or otherwise in the defense of any action referred to above, USX must
indemnify him against the expenses which he actually and reasonably incurred in
connection therewith.
 
     Policies of insurance are maintained by USX under which directors and
officers of USX are insured, within the limits and subject to the limitations of
the policies, against certain expenses in connection with the defense of
actions, suits or proceedings, and certain liabilities which might be imposed as
a result of such actions, suits or proceedings, to which they are parties by
reason of being or having been such directors or officers.
 
     USX's Certificate of Incorporation provides that no director shall be
personally liable to USX or its stockholders for monetary damages for any breach
of fiduciary duty by such director as a director, except (i) for breach of the
director's duty of loyalty to USX or its stockholders, (ii) for acts or
omissions not in good faith or which involve intentional misconduct or a knowing
violation of law, (iii) pursuant to Section 174 of the Delaware General
Corporation Law, or (iv) for any transaction from which the director derived an
improper personal benefit.
 
ITEM 16.  LIST OF EXHIBITS.
 
     See Index to Exhibits.
 
                                      II-1
<PAGE>   17
 
ITEM 17.  UNDERTAKINGS.
 
     (a) The undersigned registrant hereby undertakes:
 
          (1) To file, during any period in which offers or sales are being
     made, a post-effective amendment to this registration statement:
 
             (i) To include any prospectus required by Section 10(a)(3) of the
        Securities Act of 1933;
 
             (ii) To reflect in the prospectus any facts or events arising after
        the effective date of the registration statement (or the most recent
        post-effective amendment thereof) which, individually or in the
        aggregate, represent a fundamental change in the information set forth
        in the registration statement;
 
             (iii) To include any material information with respect to the plan
        of distribution not previously disclosed in the registration statement
        or any material change to such information in the registration
        statement;
 
             Provided however; that paragraphs (a)(1)(i) and (a)(1)(ii) do not
        apply if the information required to be included in a post-effective
        amendment by those paragraphs is contained in periodic reports filed by
        the registrant pursuant to Section 13 or Section 15(d) of the Securities
        Exchange Act of 1934 that are incorporated by reference herein.
 
          (2) That, for the purpose of determining any liability under the
     Securities Act of 1933, each such post-effective amendment shall be deemed
     to be a new registration statement relating to the securities offered
     therein, and the offering of such securities at that time shall be deemed
     to be the initial bona fide offering thereof.
 
          (3) To remove from registration by means of post-effective amendment
     any of the securities being registered which remain unsold at the
     termination of the offering.
 
     (b) USX hereby undertakes that, for purposes of determining any liability
under the Securities Act of 1933, each filing of USX's annual report pursuant to
Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 that is
incorporated by reference in the Registration Statement shall be deemed to be a
new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.
 
     (c) Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
USX pursuant to the foregoing provisions or otherwise, USX has been advised that
in the opinion of the Securities and Exchange Commission such indemnification is
against public policy as expressed in the Securities Act of 1933 and is,
therefore, unenforceable. In the event that a claim for indemnification against
such liabilities (other than the payment by USX of expenses incurred or paid by
a director, officer or controlling person of USX in the successful defense of
any action, suit or proceeding) is asserted by such director, officer or
controlling person in connection with the securities being registered, USX will,
unless in the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the
Securities Act of 1933 and will be governed by the final adjudication of such
issue.
 
                                      II-2
<PAGE>   18
 
                                   SIGNATURES
 
     PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THE REGISTRANT
CERTIFIES THAT IT HAS REASONABLE GROUNDS TO BELIEVE THAT IT MEETS ALL OF THE
REQUIREMENTS FOR FILING ON FORM S-3 AND HAS DULY CAUSED THIS REGISTRATION
STATEMENT TO BE SIGNED ON ITS BEHALF BY THE UNDERSIGNED, THEREUNTO DULY
AUTHORIZED, IN THE CITY OF PITTSBURGH, COMMONWEALTH OF PENNSYLVANIA, ON MARCH
31, 1994.
 
                                             USX CORPORATION
                                             (REGISTRANT)
 
                                                     /S/ LEWIS B. JONES
                                             By: ...............................
 
                                                        Lewis B. Jones,
                                                 Vice President & Comptroller
 
PITTSBURGH, PENNSYLVANIA
 
     PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT, THIS REGISTRATION
STATEMENT HAS BEEN SIGNED BY THE FOLLOWING PERSONS IN THE CAPACITIES INDICATED
ON MARCH 31, 1994.
 
<TABLE>
<CAPTION>
                  SIGNATURE                                         TITLE
                  ---------                                         -----
                   <S>                                               <C>
              *CHARLES A. CORRY                      Chairman of the Board of Directors,
    ....................................
                 C. A. Corry                        Chief Executive Officer and Director
                                                        (Principal Executive Officer)
            *ROBERT M. HERNANDEZ                   Executive Vice President--Accounting &
    ....................................
               R. M. Hernandez                      Finance & Chief Financial Officer and
                                                                   Director
                                                        (Principal Financial Officer)
             /S/ LEWIS B. JONES                         Vice President & Comptroller
    ....................................
               Lewis B. Jones                          (Principal Accounting Officer)
             
            *NEIL A. ARMSTRONG                                    Director
    ....................................
              Neil A. Armstrong
             
             *VICTOR G. BEGHINI                                   Director
    ....................................
              Victor G. Beghini
             
             *JEANETTE G. BROWN                                   Director
    ....................................
          Jeanette Grasselli Brown
                                                                  Director
    ....................................
                John H. Filer
             
             *JAMES A. D. GEIER                                   Director
    ....................................
              James A. D. Geier
               
               *CHARLES R. LEE                                    Director
    ....................................
               Charles R. Lee
</TABLE>
 
                                      II-3
<PAGE>   19
 
<TABLE>
<CAPTION>
                  SIGNATURE                                         TITLE
                  ---------                                         -----
                     <S>                                            <C>
                *PAUL E. LEGO                                     Director
    ....................................
                Paul E. Lego
            
            *JOHN F. MCGILLICUDDY                                 Director
    ....................................
            John F. McGillicuddy
              
              *JOHN M. RICHMAN                                    Director
    ....................................
               John M. Richman
             
             *DAVID M. RODERICK                                   Director
    ....................................
              David M. Roderick
              
              *THOMAS J. USHER                                    Director
    ....................................
               Thomas J. Usher
              
              *DAVID R. WHITWAM                                   Director
    ....................................
              David R. Whitwam
             
             *DOUGLAS C. YEARLEY                                  Director
    ....................................
             Douglas C. Yearley
             
              /S/ LEWIS B. JONES
    *By: ................................
         Lewis B. Jones, Attorney-in-Fact
</TABLE>
 
                                      II-4
<PAGE>   20
 
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
EXHIBIT
NUMBER
- ------
<S>       <C>                                                              <C>
 1.       Form of Underwriting Agreement.
 4.       Indenture dated March 15, 1993 for Debt Securities with Form of
          Debt Securities. (Incorporated by reference to Exhibit 4.1 to
          Registration Statement No. 33-60142.)
 5.       Opinion and consent of D. D. Sandman, Esq.
12.       Computation of Ratio of Earnings to Fixed Charges.
23.1      Consent of Price Waterhouse.
23.2      Consent of D. D. Sandman, Esq. (Included in Exhibit 5.)
24.       Powers of Attorney.
25.       Statement of eligibility of Trustee. (Incorporated by reference
          to Exhibit 25 to Registration Statement No. 33-60142.)
</TABLE>

<PAGE>   1
 
                                                                       EXHIBIT 1
 
                                USX CORPORATION
 
                                DEBT SECURITIES
                            
                            ------------------------
 
                             UNDERWRITING AGREEMENT
 
                                                          DRAFT OF MARCH  , 1994
[Name(s) and
address(es) of
Representative(s)]
                                                                           , 199
 
Dear Sirs:
 
     From time to time USX Corporation, a Delaware corporation (the "Company"),
proposes to enter into one or more Pricing Agreements (each a "Pricing
Agreement") in the form of Annex I hereto, with such additions and deletions as
the parties thereto may determine, and, subject to the terms and conditions
stated herein and therein, to issue and sell to the firms named in Schedule I to
the applicable Pricing Agreement (such firms constituting the "Underwriters"
with respect to such Pricing Agreement and the securities specified therein)
certain of its debt securities (the "Securities") specified in Schedule II to
such Pricing Agreement (with respect to such Pricing Agreement, the "Designated
Securities").
 
     The terms and rights of any particular issuance of Designated Securities
shall be as specified in the Pricing Agreement relating thereto and in or
pursuant to the indenture (the "Indenture") identified in such Pricing
Agreement.
 
     1. Particular sales of Designated Securities may be made from time to time
to the Underwriters of such Securities, for whom the firms designated as
representatives of the Underwriters of such Securities in the Pricing Agreement
relating thereto will act as representatives (the "Representatives"). The term
"Representatives" also refers to a single firm acting as sole representative of
the Underwriters and to Underwriters who act without any firm being designated
as their representative. This Underwriting Agreement shall not be construed as
an obligation of the Company to sell any of the Securities or as an obligation
of any of the Underwriters to purchase the Securities. The obligation of the
Company to issue and sell any of the Securities and the obligation of any of the
Underwriters to purchase any of the Securities shall be evidenced by the Pricing
Agreement with respect to the Designated Securities specified therein. Each
Pricing Agreement shall specify the aggregate principal amount of such
Designated Securities, the initial public offering price of such Designated
Securities, the purchase price to the Underwriters of such Designated
Securities, the names of the Underwriters of such Designated Securities, the
names of the Representatives of such Underwriter and the principal amount of
such Designated Securities to be purchased by each Underwriter and shall set
forth the date, time and manner of delivery of such Designated Securities and
payment therefor. The Pricing Agreement shall also specify (to the extent not
set forth in the Indenture and the registration statement and prospectus with
respect thereto) the terms of such Designated Securities. A Pricing Agreement
shall be in the form of an executed writing (which may be in counterparts), and
may be evidenced by an exchange of telegraphic communications or any other rapid
transmission device designed to produce a written record of communications
transmitted. The obligations of the Underwriters under this Agreement and each
Pricing Agreement shall be several and not joint.
 
          2. The Company represents and warrants to, and agrees with, each of
     the Underwriters that:
 
          (a) A registration statement in respect of the Securities has been
     filed with the Securities and Exchange Commission (the "Commission"); such
     registration statement and any post-effective amendment thereto, each in
     the form heretofore delivered or to be delivered to the Representatives
     and, excluding exhibits to such registration statement, but including all
     documents incorporated by reference
<PAGE>   2
 
     in the prospectus contained therein, to the Representatives for each of the
     other Underwriters, have been declared effective by the Commission in such
     form; no other document with respect to such registration statement and no
     other document required to be incorporated by reference therein has
     heretofore been filed or transmitted for filing with the Commission; and no
     stop order suspending the effectiveness of such registration statement has
     been issued and no proceeding for that purpose has been initiated or
     threatened by the Commission (any preliminary prospectus included in such
     registration statement or filed with the Commission pursuant to Rule 424(a)
     of the rules and regulations of the Commission under the Securities Act of
     1933, as amended (the "Act"), being hereinafter called a "Preliminary
     Prospectus"; the various parts of such registration statement, including
     all exhibits thereto and the documents incorporated by reference in the
     prospectus contained in the registration statement at the time such part of
     the registration statement became effective but excluding Form T-1, each as
     amended at the time such part of the registration statement became
     effective, being hereinafter called the "Registration Statement"; the
     prospectus relating to the Securities, in the form in which it has most
     recently been filed, or transmitted for filing, with the Commission on or
     prior to the date of this Agreement, being hereinafter called the
     "Prospectus"; any reference herein to any Preliminary Prospectus or the
     Prospectus shall be deemed to refer to and include the documents
     incorporated by reference therein pursuant to the applicable form under the
     Act, as of the date of such Preliminary Prospectus or Prospectus, as the
     case may be; any reference to any amendment or supplement to any
     Preliminary Prospectus or the Prospectus shall be deemed to refer to and
     include any documents filed after the date of such Preliminary Prospectus
     or Prospectus, as the case may be, under the Securities Exchange Act of
     1934, as amended (the "Exchange Act"), and incorporated by reference in
     such Preliminary Prospectus or Prospectus, as the case may be; any
     reference to any amendment to the Registration Statement shall be deemed to
     refer to and include any annual report of the Company filed pursuant to
     Section 13(a) or 15(d) of the Exchange Act after the effective date of the
     Registration Statement that is incorporated by reference in the
     Registration Statement; and any reference to the Prospectus as amended or
     supplemented shall be deemed to refer to the Prospectus as amended or
     supplemented in relation to the applicable Designated Securities in the
     form in which it is filed with the Commission pursuant to Rule 424(b) under
     the Act in accordance with Section 5(a) hereof, including any documents
     incorporated by reference therein as of the date of such filing);
 
          (b) The documents incorporated by reference in the Prospectus, when
     they became effective or were filed with the Commission, as the case may
     be, conformed in all material respects to the requirements of the Act or
     the Exchange Act, as applicable, and the rules and regulations of the
     Commission thereunder, and none of such documents contained an untrue
     statement of a material fact or omitted to state a material fact required
     to be stated therein or necessary to make the statements therein not
     misleading; and any further documents so filed and incorporated by
     reference in the Prospectus or any further amendment or supplement thereto,
     when such documents become effective or are filed with the Commission, as
     the case may be, will conform in all material respects to the requirements
     of the Act or the Exchange Act, as applicable, and the rules and
     regulations of the Commission thereunder and will not contain an untrue
     statement of a material fact or omit to state a material fact required to
     be stated therein or necessary to make the statements therein not
     misleading; provided, however, that this representation and warranty shall
     not apply to any statements or omissions made in reliance upon and in
     conformity with information furnished in writing to the Company by an
     Underwriter of Designated Securities through the Representatives expressly
     for use in the Prospectus as amended or supplemented relating to such
     Securities;
 
          (c) The Registration Statement and the Prospectus conform, and any
     further amendments or supplements to the Registration Statement or the
     Prospectus will conform, in all material respects to the requirements of
     the Act and the Trust Indenture Act of 1939, as amended (the "Trust
     Indenture Act"), and the rules and regulations of the Commission thereunder
     and do not and will not, as of the applicable effective date as to the
     Registration Statement and any amendment thereto and as of the applicable
     filing date as to the Prospectus and any amendment or supplement thereto,
     contain an untrue statement of a material fact or omit to state a material
     fact required to be stated therein or necessary to make the statements
     therein not misleading; provided, however, that this representation and
     warranty shall not
 
                                        2
<PAGE>   3
 
     apply to any statements or omissions made in reliance upon and in
     conformity with information furnished in writing to the Company by an
     Underwriter of Designated Securities through the Representatives expressly
     for use in the Prospectus as amended or supplemented relating to such
     Securities;
 
          (d) Neither the Company nor any of its subsidiaries has sustained
     since the date of the latest audited financial statements included or
     incorporated by reference in the Prospectus any material loss or
     interference with its business from fire, explosion, flood or other
     calamity, whether or not covered by insurance, or from any labor dispute or
     court or governmental action, order or decree, otherwise than as set forth
     in or contemplated by the Prospectus; and, since the respective dates as of
     which information is given in the Registration Statement and the
     Prospectus, there has not been any material change in the capital stock or
     long-term debt of the Company or any of its subsidiaries or any material
     adverse change, or any development likely to result in a prospective
     material adverse change, in or affecting the general affairs, management,
     financial position, stockholders' equity or results of Operations of the
     Company and its subsidiaries, otherwise than as set forth in or
     contemplated by the Prospectus;
 
          (e) The Company has been duly incorporated and is validly existing as
     a corporation in good standing under the laws of Delaware, with all
     corporate power and authority to own its properties and conduct its
     business as described in the Prospectus;
 
          (f) The Company has an authorized capitalization as set forth in the
     Prospectus, and all of the issued shares of capital stock of the Company
     have been duly and validly authorized and issued and are fully paid and
     non-assessable;
 
          (g) The Securities have been duly authorized, and, when Designated
     Securities are issued and delivered pursuant to this Agreement and the
     Pricing Agreement with respect to such Designated Securities, such
     Designated Securities will have been duly executed, authenticated, issued
     and delivered and will constitute valid and legally binding obligations of
     the Company entitled to the benefits provided by the Indenture, which will
     be substantially in the form filed as an exhibit to the Registration
     Statement; the Indenture has been duly authorized and duly qualified under
     the Trust Indenture Act and, at the Time of Delivery for such Designated
     Securities (as defined in Section 4 hereof), the Indenture will constitute
     a valid and legally binding instrument, enforceable in accordance with its
     terms, subject, as to enforcement, to bankruptcy, insolvency,
     reorganization and other laws of general applicability relating to or
     affecting creditors' rights and to general equity principles; and the
     Indenture conforms, and the Designated Securities will conform, to the
     descriptions thereof contained in the Prospectus as amended or supplemented
     with respect to such Designated Securities;
 
          (h) The issue and sale of the Securities and the compliance by the
     Company with all of the provisions of the Securities, the Indenture, this
     Agreement and any Pricing Agreement, and the consummation of the
     transactions herein and therein contemplated will not conflict with or
     result in a breach or violation of any of the terms or provisions of, or
     constitute a default under any indenture, mortgage, deed of trust, loan
     agreement or other agreement or instrument to which the Company is a party
     or by which the Company is bound or to which any of the property or assets
     of the Company is subject, nor will such action result in any violation of
     the provisions of the Certificate of Incorporation or By-laws of the
     Company or any statute or any order, rule or regulation of any court or
     governmental agency or body having jurisdiction over the Company or any of
     its properties; and no consent, approval, authorization, order,
     registration or qualification of or with any such court or governmental
     agency or body is required for the issue and sale of the Securities or the
     consummation by the Company of the transactions contemplated by this
     Agreement or any Pricing Agreement or the Indenture, except such as have
     been, or will have been prior to the Time of Delivery, obtained under the
     Act and the Trust Indenture Act and such consents, approvals,
     authorizations, registrations or qualifications as may be required under
     state securities or Blue Sky laws in connection with the purchase and
     distribution of the Securities by the Underwriters; and
 
          (i) Other than as set forth in the Prospectus, there are no legal or
     governmental proceedings pending to which the Company or any of its
     subsidiaries is a party or of which any property of the Company or any of
     its subsidiaries is the subject which, if determined adversely to the
     Company or any of
 
                                        3
<PAGE>   4
 
     its subsidiaries, would have a material adverse effect on the consolidated
     financial position, stockholders' equity or results of operations of the
     Company and its subsidiaries; and, to the best of the Company's knowledge,
     no such proceedings are threatened by governmental authorities or by
     others.
 
     3. Upon the execution of the Pricing Agreement applicable to any Designated
Securities and authorization by the Representatives of the release of such
Designated Securities, the several Underwriters propose to offer such Designated
Securities for sale upon the terms and conditions set forth in the Prospectus as
amended or supplemented.
 
     4. Designated Securities to be purchased by each Underwriter pursuant to
the Pricing Agreement relating thereto, in definitive form to the extent
practicable, and in such authorized denominations and registered in such names
as the Representatives may request upon at least forty-eight hours prior notice
to the Company, shall be delivered by or on behalf of the Company to the
Representatives for the account of such Underwriter, against payment by such
Underwriter or on its behalf of the purchase price therefor by certified or
official bank check or checks, payable to the order of the Company in the funds
specified in such Pricing Agreement, all at the place and time and date
specified in such Pricing Agreement or at such other place and time and date as
the Representatives and the Company may agree upon in writing, such time and
date being herein called the "Time of Delivery" for such Securities.
 
     5. The Company agrees with each of the Underwriters of any Designated
Securities:
 
          (a) To prepare the Prospectus as amended and supplemented in relation
     to the applicable Designated Securities in a form approved by the
     Representatives and to file such Prospectus pursuant to Rule 424(b) under
     the Act not later than the Commission's close of business on the second
     business day following the execution and delivery of the Pricing Agreement
     relating to the applicable Designated Securities or, if applicable, such
     earlier time as may be required by Rule 424(b); to make no further
     amendment or any supplement to the Registration Statement or Prospectus as
     amended or supplemented after the date of the Pricing Agreement relating to
     such Securities and prior to the Time of Delivery for such Securities which
     shall be disapproved by the Representatives for such Securities promptly
     after reasonable notice thereof, to advise the Representatives promptly of
     any such amendment or supplement after such Time of Delivery and furnish
     the Representatives with copies thereof; to file promptly all reports and
     any definitive proxy or information statements required to be filed by the
     Company with the Commission pursuant to Section 13(a), 13(c), 14, or 15(d)
     of the Exchange Act for so long as the delivery of a prospectus is required
     in connection with the offering or sale of such Securities, and during such
     same period to advise the Representatives, promptly after it receives
     notice thereof, of the time when any amendment to the Registration
     Statement has been filed or becomes effective or any supplement to the
     Prospectus or any amended Prospectus has been filed with the Commission, of
     the issuance by the Commission of any stop order or of any order preventing
     or suspending the use of any prospectus relating to the Securities, of the
     suspension of the qualification of such Securities for offering or sale in
     any jurisdiction, of the initiation or threatening of any proceeding for
     any such purpose, or of any request by the Commission for the amending or
     supplementing of the Registration Statement or Prospectus or for additional
     information; and, in the event of the issuance of any such stop order or of
     any such order preventing or suspending the use of any prospectus relating
     to the Securities or suspending any such qualification, to use promptly its
     best efforts to obtain its withdrawal;
 
          (b) Promptly from time to time to take such action as the
     Representatives may reasonably request to qualify such Securities for
     offering and sale under the securities laws of such jurisdictions as the
     Representatives may request and to comply with such laws so as to permit
     the continuance of sales and dealings therein in such jurisdictions for as
     long as may be necessary to complete the distribution of such Securities,
     provided that in connection therewith the Company shall not be required to
     qualify as a foreign corporation or to file a general consent to service of
     process in any jurisdiction;
 
          (c) To furnish the Underwriters with copies of the Prospectus as
     amended or supplemented in such quantities as the Representatives may from
     time to time reasonably request, and, if the delivery of a prospectus is
     required at any time in connection with the offering or sale of the
     Securities and if at such time any event shall have occurred as a result of
     which the Prospectus as then amended or supplemented
 
                                        4
<PAGE>   5
 
     would include an untrue statement of a material fact or omit to state any
     material fact necessary in order to make the statements therein, in the
     light of the circumstances under which they were made when such Prospectus
     is delivered, not misleading, or, if for any other reason it shall be
     necessary during such same period to amend or supplement the Prospectus or
     to file under the Exchange Act any document incorporated by reference in
     the Prospectus in order to comply with the Act, the Exchange Act or the
     Trust Indenture Act, to notify the Representatives and to file such
     document and to prepare and furnish without charge to each Underwriter and
     to any dealer in securities as many copies as the Representatives may from
     time to time reasonably request of an amended Prospectus or a supplement to
     the Prospectus which will correct such statement or omission or effect such
     compliance;
 
          (d) To make generally available to its security holders as soon as
     practicable, but in any event not later than eighteen months after the
     effective date of the Registration Statement (as defined in Rule 158 (c)),
     an earning statement of the Company and its subsidiaries (which need not be
     audited) complying with Section 11(a) of the Act and the rules and
     regulations of the Commission thereunder (including at the option of the
     Company Rule 158); and
 
          (e) During the period beginning from the date of the Pricing Agreement
     for such Designated Securities and continuing to and including the earlier
     of (i) the termination of trading restrictions for such Designated
     Securities, as notified to the Company by the Representatives, and (ii) the
     Time of Delivery for such Designated Securities, not to offer, sell,
     contract to sell or otherwise dispose of any debt securities of the Company
     which mature more than one year after such Time of Delivery and which are
     substantially similar to such Designated Securities, without the prior
     written consent of the Representatives.
 
     6. The Company covenants and agrees with the several Underwriters that the
Company will pay or cause to be paid the following: (i) the fees, disbursements
and expenses of the Company's counsel and accountants in connection with the
registration of the Securities under the Act and all other expenses in
connection with the preparation, printing and filing of the Registration
Statement, any Preliminary Prospectus and the Prospectus and amendments and
supplements thereto and the mailing and delivering of copies thereof to the
Underwriters and dealers; (ii) the cost of printing or producing any Agreement
among Underwriters, this Agreement, any Pricing Agreement, any Indenture, any
Blue Sky and Legal Investment Memoranda and any other documents in connection
with the offering, purchase, sale and delivery of the Securities; (iii) all
expenses in connection with the qualification of the Securities for offering and
sale under state securities laws as provided in Section 5(b) hereof, including
the reasonable fees and disbursements of counsel for the Underwriters in
connection with such qualification and in connection with the Blue Sky and legal
investment surveys; (iv) any fees charged by securities rating services for
rating the Securities; (v) any filing fees incident to any required review by
the National Association of Securities Dealers, Inc. of the terms of the sale of
the Securities; (vi) the cost of preparing the Securities; (vii) the fees and
expenses of any Trustee and any agent of any Trustee and the fees and
disbursements of counsel for any Trustee in connection with any Indenture and
the Securities; and (viii) all other costs and expenses incident to the
performance of its obligations hereunder which are not otherwise specifically
provided for in this Section. It is understood, however, that, except as
otherwise agreed by the Company and the Underwriters and except as provided in
this Section, Section 8 and Section 11 hereof, the Underwriters will pay all of
their own costs and expenses, including the fees of their counsel, transfer
taxes on resale of any of the Securities by them, and any advertising expenses
connected with any offers they may make.
 
     7. The obligations of the Underwriters of any Designated Securities under
the Pricing Agreement relating to such Designated Securities shall be subject,
in the discretion of the Representatives, to the condition that all
representations and warranties and other statements of the Company in or
incorporated by reference in the Pricing Agreement relating to such Designated
Securities are, at and as of the Time of Delivery for such Designated
Securities, true and correct, the condition that the Company shall have
performed all of its obligations hereunder theretofore to be performed, and the
following additional conditions:
 
          (a) The Prospectus as amended or supplemented in relation to the
     applicable Designated Securities shall have been filed with the Commission
     pursuant to Rule 424(b) within the applicable time period
 
                                        5
<PAGE>   6
 
     prescribed for such filing by the rules and regulations under the Act and
     in accordance with Section 5(a) hereof, no stop order suspending the
     effectiveness of the Registration Statement or any part thereof shall have
     been issued and no proceeding for that purpose shall have been initiated or
     threatened by the Commission; and all requests for additional information
     on the part of the Commission shall have been complied with to the
     Representatives' reasonable satisfaction;
 
          (b) Counsel for the Underwriters shall have furnished to the
     Representatives such opinion or opinions, dated the Time of Delivery for
     such Designated Securities, with respect to the incorporation of the
     Company, the validity of the Indenture, the Designated Securities, the
     Registration Statement, the Prospectus as amended or supplemented and other
     related matters as the Representatives may reasonably request, and such
     counsel shall have received such papers and information as they may
     reasonably request to enable them to pass upon such matters;
 
          (c) The General Counsel or Assistant General Counsel for the Company
     shall have furnished to the Representatives his written opinion, dated the
     Time of Delivery for such Designated Securities, in form and substance
     satisfactory to the Representatives, to the effect that:
 
             (i) The Company has been duly incorporated and is validly existing
        as a corporation in good standing under the laws of Delaware, with all
        corporate power and authority to own its properties and conduct its
        business as described in the Prospectus as amended or supplemented;
 
             (ii) The Company has an authorized capitalization as set forth in
        the Prospectus as amended or supplemented and all of the issued shares
        of capital stock of the Company have been duly and validly authorized
        and issued and are fully paid and non-assessable;
 
             (iii) To the best of such counsel's knowledge, there are no legal
        or governmental proceedings pending to which the Company or any of its
        subsidiaries is a party or of which any property of the Company or any
        of its subsidiaries is the subject, other than as set forth in the
        Prospectus which, if determined adversely to the Company or any of its
        subsidiaries, would have a material adverse effect on the consolidated
        financial position, stockholders' equity or results of operations of the
        Company and its subsidiaries; and, to the best of such counsel's
        knowledge, no such proceedings are threatened by governmental
        authorities or by others;
 
             (iv) This Agreement and the Pricing Agreement with respect to the
        Designated Securities have been duly authorized, executed and delivered
        by the Company;
 
             (v) The Designated Securities have been duly authorized, executed,
        authenticated, issued and delivered and constitute valid and legally
        binding obligations of the Company, subject, as to enforcement, to
        bankruptcy, insolvency, reorganization and other laws of general
        applicability relating to or affecting creditors' rights and to general
        equity principles, entitled to the benefits provided by the Indenture;
        and the Designated Securities and the Indenture conform in all material
        respects to the descriptions thereof in the Prospectus as amended or
        supplemented;
 
             (vi) The Indenture has been duly authorized, executed and delivered
        by the parties thereto and constitutes a valid and legally binding
        instrument, enforceable in accordance with its terms, subject, as to
        enforcement, to bankruptcy, insolvency, reorganization and other laws of
        general applicability relating to or affecting creditors' rights and to
        general equity principles; and the Indenture has been duly qualified
        under the Trust Indenture Act;
 
             (vii) The issue and sale of the Designated Securities and the
        compliance by the Company with all of the provisions of the Designated
        Securities, the Indenture, this Agreement and the Pricing Agreement with
        respect to the Designated Securities and the consummation of the
        transactions herein and therein contemplated will not conflict with or
        result in a breach or violation of any of the terms or provisions of, or
        constitute a default under, any indenture, mortgage, deed of trust, loan
        agreement or other agreement or instrument known to such counsel to
        which the Company is a party or by which the Company is bound or to
        which any of the property or assets of the Company is subject, nor will
        such actions result in any violation of the provisions of the
        Certificate of
 
                                        6
<PAGE>   7
 
        Incorporation or By-laws of the Company or any statute or any order,
        rule or regulation known to such counsel of any court or governmental
        agency or body having jurisdiction over the Company or any of its
        properties;
 
             (viii) No consent, approval, authorization, order, registration or
        qualification of or with any such court or governmental agency or body
        is required for the issue and sale of the Designated Securities of the
        consummation by the Company of the transactions contemplated by this
        Agreement or such Pricing Agreement or the Indenture, except such as
        have been obtained under the Act and the Trust Indenture Act and such
        consents, approvals, authorizations, registrations or qualifications as
        may be required under state securities or Blue Sky laws in connection
        with the purchase and distribution of the Designated Securities by the
        Underwriters;
 
             (ix) The documents incorporated by reference in the Prospectus as
        amended or supplemented (other than the financial statements and related
        schedules therein, as to which such counsel need express no opinion),
        when they became effective or were filed with the Commission, as the
        case may be, complied as to form in all material respects with the
        requirements of the Act or the Exchange Act, as applicable, and the
        rules and regulations of the Commission thereunder; and he has no reason
        to believe that any of such documents, when they became effective or
        were so filed, as the case may be, contained, in the case of a
        registration statement which became effective under the Act, an untrue
        statement of a material fact or omitted to state a material fact
        required to be stated therein or necessary to make the statements
        therein not misleading or, in the case of other documents which were
        filed under the Act or the Exchange Act with the Commission, an untrue
        statement of a material fact or omitted to state a material fact
        necessary in order to make the statements therein, in the light of the
        circumstances under which they were made when such documents were so
        filed, not misleading; and
 
             (x) The Registration Statement and the Prospectus as amended or
        supplemented and any further amendments and supplements thereto made by
        the Company prior to the Time of Delivery for the Designated Securities
        (other than the financial statements and related schedules therein, as
        to which such counsel need express no opinion) comply as to form in all
        material respects with the requirements of the Act and the Trust
        Indenture Act and the rules and regulations thereunder; he has no reason
        to believe that, as of its effective date, the Registration Statement or
        any further amendment thereto made by the Company prior to the Time of
        Delivery (other than the financial statements and related schedules
        therein, as to which such counsel need express no opinion) contained an
        untrue statement of a material fact or omitted to state a material fact
        required to be stated therein or necessary to make the statements
        therein not misleading or that, as of its date, the Prospectus as
        amended or supplemented or any further amendment or supplement thereto
        made by the Company prior to the Time of Delivery (other than the
        financial statements and related schedules therein, as to which such
        counsel need express no opinion) contained an untrue statement of a
        material fact or omitted to state a material fact necessary in order to
        make the statements therein, in light of the circumstances in which they
        were made, not misleading or that, as of the Time of Delivery, either
        the Registration Statement or the Prospectus as amended or supplemented
        or any further amendment or supplement thereto made by the Company prior
        to the Time of Delivery (other than the financial statements and related
        schedules therein, as to which such counsel need express no opinion)
        contains an untrue statement of a material fact or omits to state a
        material fact necessary in order to make the statements therein, in
        light of the circumstances in which they were made, not misleading; and
        they do not know of any amendment to the Registration Statement required
        to be filed or any contracts or other documents of a character required
        to be filed as an exhibit to the Registration Statement or required to
        be incorporated by reference into the Prospectus as amended or
        supplemented or required to be described in the Registration Statement
        or the Prospectus as amended or supplemented which are not filed or
        incorporated by reference or described as required;
 
          (d) On the date of the Pricing Agreement for such Designated
     Securities and at the Time of Delivery for such Designated Securities, the
     independent accountants of the Company who have certified
 
                                        7
<PAGE>   8
 
     the financial statements of the Company and its subsidiaries included or
     incorporated by reference in the Registration Statement shall have
     furnished to the Representatives a letter, dated the effective date of the
     Registration Statement or the date of the most recent report filed with the
     Commission containing financial statements and incorporated by reference in
     the Registration Statement, if the date of such report is later than such
     effective date, and a letter dated such Time of Delivery, respectively, to
     the effect set forth in Annex II hereto, and with respect to such letter
     dated such Time of Delivery, as to such other matters as the
     Representatives may reasonably request and in form and substance
     satisfactory to the Representatives;
 
          (e) (i) Neither the Company nor any of its subsidiaries shall have
     sustained since the date of the latest audited financial statements
     included or incorporated by reference in the Prospectus as amended or
     supplemented any loss or interference with its business from fire,
     explosion, flood or other calamity, whether or not covered by insurance, or
     from any labor dispute or court or governmental action, order to decree,
     otherwise than as set forth in or contemplated by the Prospectus as amended
     or supplemented, and (ii) since the respective dates as of which
     information is given in the Prospectus as amended or supplemented there
     shall not have been any change in the capital stock or long-term debt of
     the Company or any of its subsidiaries or any change, or any development
     likely to result in a prospective change, in or affecting the general
     affairs, management, financial position, stockholders' equity or results of
     operations of the Company and its subsidiaries, otherwise than as set forth
     in or contemplated by the Prospectus as amended or supplemented, the effect
     of which, in any such case described in Clause (i) or (ii) is in the
     reasonable judgment of the Representatives so material and adverse as to
     make it impracticable or inadvisable to proceed with the public offering or
     the delivery of the Designated Securities on the terms and in the manner
     contemplated by the Prospectus as amended or supplemented;
 
          (f) On or after the date of the Pricing Agreement relating to the
     Designated Securities (i) no downgrading shall have occurred in the rating
     accorded the Company's debt securities by any "nationally recognized
     statistical rating organization,"as that term is defined by the Commission
     for purposes of Rule 436(g)(2) under the Act, and (ii) no such organization
     shall have publicly announced that it has under surveillance or review,
     with possible negative implications, its rating of any of the Company's
     debt securities;
 
          (g) On or after the date of the Pricing Agreement relating to the
     Designated Securities there shall not have occurred any of the following:
     (i) a suspension or material limitation in trading in securities generally
     on the New York Stock Exchange; (ii) a general moratorium on commercial
     banking activities in New York declared by either Federal or New York State
     authorities; or (iii) the outbreak or escalation of hostilities involving
     the United States or the declaration by the United States of a national
     emergency or war, if the effect of any such event specified in this clause
     in the judgment of the Representatives makes it impracticable or
     inadvisable to proceed with the public offering or the delivery of the
     Designated Securities on the terms and in the manner contemplated by the
     Prospectus as amended and supplemented; and
 
          (h) The Company shall have furnished or caused to be furnished to the
     Representatives at the Time of Delivery for the Designated Securities a
     certificate or certificates of officers of the Company satisfactory to the
     Representatives as to the accuracy of the representations and warranties of
     the Company herein at and as of such Time of Delivery, as to the
     performance by the Company of all of its obligations hereunder to be
     performed at or prior to such Time of Delivery, as to the matters set forth
     in subsections (a) and (e) of this Section and as to such other matters as
     the Representatives may reasonably request.
 
     8. (a) The Company will indemnify and hold harmless each Underwriter
against any losses, claims, damages or liabilities, joint or several, to which
such Underwriter may become subject, under the Act or otherwise, insofar as such
losses, claims, damages or liabilities (or actions in respect thereof) arise out
of or are based upon an untrue statement or alleged untrue statement of a
material fact contained in any Preliminary Prospectus, any preliminary
prospectus supplement, the Registration Statement, the Prospectus as amended or
supplemented and any other prospectus relating to the Securities, or any
amendment or
 
                                        8
<PAGE>   9
 
supplement thereto, or arise out of or are based upon the omission or alleged
omission to state therein a material fact required to be stated therein or
necessary to make the statements therein not misleading, and will reimburse each
Underwriter for any legal or other expenses reasonably incurred by such
Underwriter in connection with investigating or defending any such action or
claim as such expenses are incurred; provided, however, that the Company shall
not be liable in any such case to the extent that any such loss, claim, damage
or liability arises out of or is based upon an untrue statement or alleged
untrue statement or omission or alleged omission made in any Preliminary
Prospectus, any preliminary prospectus supplement, the Registration Statement,
the Prospectus as amended or supplemented and any other prospectus relating to
the Securities, or any such amendment or supplement in reliance upon and in
conformity with written information furnished to the Company by any Underwriter
of Designated Securities through the Representatives expressly for use in the
Prospectus as amended or supplemented relating to such Securities.
 
     (b) Each Underwriter will indemnify and hold harmless the Company and each
director, officer and controlling person of the Company against any losses,
claims, damages or liabilities to which the Company may become subject, under
the Act or otherwise, insofar as such losses, claims, damages or liabilities (or
actions in respect thereof) arise out of or are based upon an untrue statement
or alleged untrue statement of a material fact contained in any Preliminary
Prospectus, any preliminary prospectus supplement, the Registration Statement,
the Prospectus as amended or supplemented and any other prospectus relating to
the Securities, or any amendment or supplement thereto, or arise out of or are
based upon the omission or alleged omission to state therein a material fact
required to be stated therein or necessary to make the statements therein not
misleading, in each case to the extent, but only to the extent, that such untrue
statement or alleged untrue statement or omission or alleged omission was made
in any Preliminary Prospectus, any preliminary prospectus supplement, the
Registration Statement, the Prospectus as amended or supplemented and any other
prospectus relating to the Securities, or any such amendment or supplement in
reliance upon and in conformity with written information furnished to the
Company by such Underwriter through the Representatives expressly for use
therein; and will reimburse the Company for any legal or other expenses
reasonably incurred by the Company in connection with investigating or defending
any such action or claim as such expenses are incurred.
 
     (c) Promptly after receipt by an indemnified party under subsection (a) or
(b) above of notice of the commencement of any action, such indemnified party
shall, if a claim in respect thereof is to be made against the indemnifying
party under such subsection, notify the indemnifying party in writing of the
commencement thereof: but the failure as to notify the indemnifying party shall
not relieve it from any liability which it may have to any indemnified party
otherwise than under such subsection. In case any such action shall be brought
against any indemnified party and it shall notify the indemnifying party of the
commencement thereof, the indemnifying party shall be entitled to participate
therein and, to the extent that it shall wish, jointly with any other
indemnifying party similarly notified, to assume the defense thereof, with
counsel satisfactory to such indemnified party (who shall not, except with the
consent of the indemnified party, be counsel to the indemnifying party), and,
after notice from the indemnifying party to such indemnified party of its
election so to assume the defense thereof, the indemnifying party shall not be
liable to such indemnified party under such subsection for any legal expenses of
other counsel or any other expenses, in each ease subsequently incurred by such
indemnified party, in connection with the defense thereof other than reasonable
costs of investigation. No indemnifying party shall, in connection with any one
action or separate but substantially similar or related actions in the same
jurisdiction arising out of the same general allegations or circumstances, be
liable for the reasonable fees and expenses of more than one separate firm of
attorneys at any time for all indemnified parties, which firm shall be
designated in writing by the Representatives if the indemnified parties under
this Section 8 consist of any Underwriter or any of their respective controlling
persons, or by the Company, if the indemnified parties under this Section 8
consist of the Company or any of the Company's directors, officers or
controlling persons. No indemnifying party shall, without the prior written
consent of the indemnified party, effect any settlement of any pending or
threatened proceeding in respect of which any indemnified party is or could have
been a party and indemnity could have been sought hereunder by such indemnified
party, unless such settlement includes an unconditional release of such
indemnified party from all liability on claims that are the subject matter of
such proceeding.
 
                                        9
<PAGE>   10
 
     (d) If the indemnification provided for in this Section 8 is unavailable to
or insufficient to hold harmless an indemnified party under subsection (a) or
(b) above in respect of any losses, claims, damages or liabilities (or actions
in respect thereof) referred to therein, then each indemnifying party shall
contribute to the amount paid or payable by such indemnified party as a result
of such losses, claims, damages or liabilities (or actions in respect thereof)
in such proportion as is appropriate to reflect the relative benefits received
by the Company on the one hand and the Underwriters of the Designated Securities
on the other from the offering of the Designated Securities to which such loss,
claim, damage or liability (or action in respect thereof) relates. If, however,
the allocation provided by the immediately preceding sentence is not permitted
by applicable law or if the indemnified party failed to give the notice required
under subsection (c) above, then each indemnifying party shall contribute to
such amount paid or payable by such indemnified party in such proportion as is
appropriate to reflect not only such relative benefits but also the relative
fault of the Company on the one hand and the Underwriters of the Designated
Securities on the other in connection with the statements or omissions which
resulted in such losses, claims, damages or liabilities (or actions in respect
thereof), as well as any other relevant equitable considerations. The relative
benefits received by the Company on the one hand and such Underwriters on the
other shall be deemed to be in the same proportion as the total net proceeds
from such offering (before deducting expenses) received by the Company bear to
the total underwriting discounts and commissions received by such Underwriters.
The relative fault shall be determined be reference to, among other things.
whether the untrue or alleged untrue statement of a material fact or the
omission or alleged omission to state a material fact relates to information
supplied by the Company on the one hand or such Underwriters on the other and
the parties' relative intent, knowledge, access to information and opportunity
to correct or prevent such statement or omission. The Company and the
Underwriters agree that it would not be just and equitable if contribution
pursuant to this subsection (d) were determined by pro rata allocation (even if
the Underwriters were treated as one entity for such purpose) or by any other
method of allocation which does not take account of the equitable considerations
referred to above in this subsection (d). The amount paid or payable by an
indemnified party as a result of the losses, claims, damages or liabilities (or
actions in respect thereof) referred to above in this subsection (d) shall be
deemed to include any legal or other expenses reasonably incurred by such
indemnified party in connection with investigating or defending any such action
or claim. Notwithstanding the provisions of this subsection (d), no Underwriter
shall be required to contribute any amount in excess of the amount by which the
total price at which the applicable Designated Securities underwritten by it and
distributed to the public were offered to the public exceeds the amount of any
damages which such Underwriter has otherwise been required to pay be reason of
such untrue or alleged untrue statement or omission or alleged omission. No
person guilty of fraudulent misrepresentation (within the meaning of Section
11(f) of the Act) shall be entitled to contribution from any person who was not
guilty of such fraudulent misrepresentation. The obligations of the Underwriters
of Designated Securities in this subsection (d) to contribute are several in
proportion to their respective underwriting obligations with respect to such
Securities and not joint.
 
     (e) The obligations of the Company under this Section 8 shall be in
addition to any liability which the Company may otherwise have and shall extend,
upon the same terms and conditions, to each person, if any, who controls any
Underwriter within the meaning of the Act; and the obligations of the
Underwriters under this Section 8 shall be in addition to any liability which
the respective Underwriters may otherwise have and shall extend, upon the same
terms and conditions, to each officer and director of the Company and to each
person, if any, who controls the Company within the meaning of the Act.
 
     9. (a) If any Underwriter shall default in its obligation to purchase the
Designated Securities which it has agreed to purchase under the Pricing
Agreement relating to such Designated Securities, the Representatives may in
their discretion arrange for themselves or another party or other parties
reasonably satisfactory to the Company to purchase such Designated Securities on
the terms contained herein. If within thirty-six hours after such default by any
Underwriter the Representatives do not arrange for the purchase of such
Designated Securities, then the Company shall be entitled to a further period of
thirty-six hours within which to procure another party or other parties
reasonably satisfactory to the Representatives to purchase such Designated
Securities on such terms. In the event that, within the respective prescribed
period, the Representatives notify the Company that they have so arranged for
the purchase of such Designated Securities, or the Company notifies the
representatives that it has so arranged for the purchase of such Designated
Securities, the
 
                                       10
<PAGE>   11
 
Representatives or the Company shall have the right to postpone the Time of
Delivery for such Designated Securities for a period of not more than seven
days, in order to effect whatever changes may thereby be made necessary in the
Registration Statement or the Prospectus as amended or supplemented, or in any
other documents or arrangements, and the Company agrees to file promptly any
amendments or supplements to the Registration Statement or the Prospectus which
in the opinion of the Representatives may thereby be made necessary. The term
"Underwriter" as used in this Agreement shall include any person substituted
under this Section with like effect as if such person had originally been a
party to the Pricing Agreement with respect to such Designated Securities.
 
     (b) If, after giving effect to any arrangements for the purchase of the
Designated Securities of a defaulting Underwriter or Underwriters by the
Representatives and the Company as provided in subsection (a) above, the
aggregate principal amount of such Designated Securities which remains
unpurchased does not exceed one-eleventh of the aggregate principal amount of
the Designated Securities, then the Company shall have the right to require each
non-defaulting Underwriter to purchase the principal amount of Designated
Securities which such Underwriter agreed to purchase under the Pricing Agreement
relating to such Designated Securities and, in addition, to require each
non-defaulting Underwriter to purchase its pro rata share (based on the
principal amount of Designated Securities which such Underwriter agreed to
purchase under such Pricing Agreement) of the Designated Securities of such
defaulting Underwriter or Underwriters for which such arrangements have not been
made; but nothing herein shall relieve a defaulting Underwriter from liability
for its default.
 
     (c) If, after giving effect to any arrangements for the purchase of the
Designated Securities of a defaulting Underwriter or Underwriters by the
Representatives and the Company as provided in subsection (a) above, the
aggregate principal amount of Designated Securities which remains unpurchased
exceeds one-eleventh of the aggregate principal amount of the Designated
Securities, as referred to in subsection (b) above, or if the Company shall not
exercise the right described in subsection (b) above to require non-defaulting
Underwriters to purchase Designated Securities of a defaulting Underwriter or
Underwriters, then the Pricing Agreement relating to such Designated Securities
shall thereupon terminate, without liability on the part of any nondefaulting
Underwriter or Company, except for the expenses to be borne by the Company and
the Underwriters as provided in Section 6 hereof and the indemnity and
contribution agreements in Section 8 hereof; but nothing herein shall relieve a
defaulting Underwriter from liability for its default.
 
     10. The respective indemnities, agreements, representations, warranties and
other statements of the Company and the several Underwriters, as set forth in
this Agreement or made by or on behalf of them, respectively, pursuant to this
Agreement, shall remain in full force and effect, regardless of any
investigation (or any statement as to the results thereof) made by or on behalf
of any Underwriter or any controlling person of any Underwriter, or the Company,
or any officer or director or controlling person of the Company, and shall
survive delivery of and payment for the Securities.
 
     11. If any Pricing Agreement shall be terminated pursuant to Section 9
hereof, the Company shall not then be under any liability to any Underwriter
with respect to the Designated Securities covered by such pricing Agreement
except as provided in Section 6 and Section 8 hereof, but, if for any other
reason Designated Securities are not delivered by or on behalf of the Company as
provided herein, the Company will reimburse the Underwriters through the
Representatives for all out-of-pocket expenses approved in writing by the
Representatives, including fees and disbursements of counsel, reasonably
incurred by the Underwriters in making preparations for the purchase, sale and
delivery of such Designated Securities, but the Company shall then be under no
further liability to any Underwriter with respect to such Designated Securities
except as provided in Section 6 and Section 8 hereof.
 
     12. In all dealings hereunder, the Representatives of the Underwriters of
Designated Securities shall act on behalf of each of such Underwriters, and the
parties hereto shall be entitled to act and rely upon any statement, request,
notice or agreement on behalf of any Underwriter made or given by such
Representatives jointly or by such of the Representatives, if any, as may be
designated for such purpose in the Pricing Agreement.
 
                                       11
<PAGE>   12
 
     All statements, requests, notices and agreements hereunder shall be in
writing, and if to the Underwriters shall be delivered or sent by mail, telex or
facsimile transmission to the address of the Representatives as set forth in the
Pricing Agreement; and if to the Company shall be delivered or sent by mail,
telex or facsimile transmission to the address of the Company set forth in the
Registration Statement: Attention: Secretary; provided, however, that any notice
to an Underwriter pursuant to Section 8(c) hereof shall be delivered or sent by
mail, telex or facsimile transmission to such Underwriter at its address set
forth in its Underwriters' Questionnaire, or telex constituting such
Questionnaire, which address will be supplied to the Company by the
Representatives upon request. Any such statements, requests, notices or
agreements shall take effect upon receipt thereof
 
     13. This Agreement and each Pricing Agreement shall be binding upon, and
inure solely to the benefit of, the Underwriters, the Company and, to the extent
provided in Section 8 and Section 10 hereof, the officers and directors of the
Company and each person who controls the Company or any Underwriter, and their
respective heirs, executors, administrators, successors and assigns, and no
other person shall acquire or have any right under or by virtue of this
Agreement or any such Pricing Agreement. No purchaser of any of the Securities
from any Underwriter shall be deemed a successor or assign by reason merely of
such purchase.
 
     14. Time shall be of the essence of each Pricing Agreement. As used herein,
"business day" shall mean any day when the Commission's office in Washington,
D.C. is open for business.
 
     15. This Agreement and each Pricing Agreement shall be governed by and
construed in accordance with the laws of the State of New York.
 
     16. This Agreement and each Pricing Agreement may be executed by any one or
more of the parties hereto and thereto in any number of counterparts, each of
which shall be deemed to be an original, but all such respective counterparts
shall together constitute one and the same instrument.
 
     If the foregoing is in accordance with your understanding, please sign and
return to us three counterparts hereof.
 
                                            Very truly yours,
 
                                            USX Corporation
                                            
                                            By: 
                                               --------------------------------
                                               Name:
                                               Title:
Accepted as of the date hereof:
 
  
   By:
       ------------------------
       Name:
       Title:
 
                                       12
<PAGE>   13
 
                                                         DRAFT OF MARCH   , 1994
                                                                         ANNEX I
 
                               PRICING AGREEMENT
                                                                           , 199
 
[Names(s) and Address(es)
of Representative(s)]
 
As Representatives of the several
Underwriters named in Schedule I hereto,
 
Dear Sirs:
 
     USX Corporation, a Delaware corporation (the "Company"), proposes, subject
to the terms and conditions stated herein and in the Underwriting Agreement,
dated               , 199 (the "Underwriting Agreement"), between the Company on
the one hand and [Name(s) of Representative(s)] on the other hand, to issue and
sell to the Underwriters named in Schedule I hereto (the "Underwriters") the
Securities specified in Schedule II hereto (the "Designated Securities"). Each
of the provisions of the Underwriting Agreement is incorporated herein by
reference in its entirety, and shall be deemed to be a part of this Agreement to
the same extent as if such provisions had been set forth in full herein; and
each of the representatives and warranties set forth therein shall be deemed to
have been made at and as of the date of this Pricing Agreement, except that each
representation and warranty which refers to the Prospectus in Section 2 of the
Underwriting Agreement shall be deemed to be a representation or warranty as of
the date of the Underwriting Agreement in relation to the Prospectus (as therein
defined), and also a representation and warranty as of the date of this Pricing
Agreement in relation to the Prospectus as amended or supplemented relating to
the Designated Securities which are the subject of this Pricing Agreement. Each
reference to the Representatives herein and in the provisions of the
Underwriting Agreement so incorporated by reference shall be deemed to refer to
you. Unless otherwise defined herein, terms defined in the Underwriting
Agreement are used herein as therein defined. The Representatives designated to
act on behalf of the Representatives and on behalf of each of the Underwriters
of the Designated Securities pursuant to Section 12 of the Underwriting
Agreement and the address of the Representatives referred to in such Section 12
are set forth at the end of Schedule II hereto.
 
     An amendment to the Registration Statement, or a supplement to the
Prospectus, as the case may be, relating to the Designated Securities, in the
form heretofore delivered to you is now proposed to be filed with the
Commission.
 
     Subject to the terms and conditions set forth herein and in the
Underwriting Agreement incorporated herein by reference, the Company agrees to
issue and sell to each of the Underwriters and each of the Underwriters agrees,
severally and not jointly, to purchase from the Company, at the time and place
and at the purchase price to the Underwriters set forth in Schedule II hereto,
the principal amount of Designated Securities set forth opposite the name of
such Underwriter in Schedule I hereto.
 
     If the foregoing is in accordance with your understanding, please sign and
return to us five counterparts hereof, and upon acceptance hereof by you, on
behalf of each of the Underwriters, this letter and such acceptance hereof,
including the provisions of the Underwriting Agreement incorporated herein by
reference, shall constitute a binding agreement between each of the Underwriters
and the Company. It is understood that your acceptance of this letter on behalf
of each of the Underwriters is or will be pursuant to the authority set forth in
a form of Agreement among Underwriters, the form of which shall be submitted to
the Company for examination upon request, but without warranty on the part of
the Representatives as to the authority of the signers thereof.
 
                                            Very truly yours,
 
                                            USX Corporation
                                                                            
                                            By /s/
                                               --------------------------------
                                               Name:
                                               Title:
 
[Name(s) and Signature(s)
of Representative(s)]
<PAGE>   14
 
DRAFT OF MARCH   , 1994
 
                                   SCHEDULE I
 
<TABLE>
<CAPTION>
                                                                                    PRINCIPAL
                                                                                    AMOUNT OF
                                                                                   DESIGNATED
                                                                                   SECURITIES
     UNDERWRITER                                                                TO BE PURCHASED
     -----------                                                                ---------------
<S>                                                                                 <C>
[Names of Underwriters].......................................................
                                                                        

         
     
                                                                                  -----------
      Total....................................................................
                                                                                  ===========                  
</TABLE>
<PAGE>   15
 
DRAFT OF MARCH   , 1994
 
                                  SCHEDULE II
 
TITLE OF DESIGNATED SECURITIES:
 
     Aggregate principal amount
 
PRICE TO PUBLIC:
 
       % of the principal amount of the Designated Securities, plus accrued
interest from                                                                 to
[and accrued amortization, if any, from                     to                 ]
SPECIFIED FUNDS FOR PAYMENT OF PURCHASE PRICE:
 
INDENTURE:
 
     Indenture dated March 15, 1993, between the Company and PNC Bank, National
Association, as Trustee
 
MATURITY:
 


INTEREST RATE:
 
                    %


 
INTEREST PAYMENT DATES:



REDEMPTION PROVISIONS:



SINKING FUND PROVISIONS:



DEFEASANCE PROVISIONS:



TIME OF DELIVERY:



CLOSING LOCATION:
 


NAMES AND ADDRESSES OF REPRESENTATIVES:
 


     DESIGNATED REPRESENTATIVES:
 


     ADDRESS FOR NOTICES, ETC.:
<PAGE>   16
 
                                                         DRAFT OF MARCH   , 1994
 
                                                                        ANNEX II
 
     Pursuant to Section 7(d) of the Underwriting Agreement, the accountants
shall furnish letters to the Underwriters to the effect that:
 
          (i) They are independent certified public accountants with respect to
     the Company and its subsidiaries within the meaning of the Act and the
     applicable published rules and regulations thereunder;
 
          (ii) In their opinion, the financial statements and any supplementary
     financial information and schedules audited (and, if applicable,
     prospective financial statements and/or pro forma financial information
     examined) by them and included or incorporated by reference in the
     Registration Statement or the Prospectus comply as to form in all material
     respects with the applicable accounting requirements of the Act or the
     Exchange Act, as applicable, and the related published rules and
     regulations thereunder ; and, if applicable, they have made a review in
     accordance with standards established by the American Institute of
     Certified Public Accountants of the consolidated interim financial
     statements, selected financial data, pro forma financial information,
     prospective financial statements and/or condensed financial statements
     derived from audited financial statements of the Company for the periods
     specified in such letter, as indicated in their reports thereon, copies of
     which have been furnished to the representatives of the Underwriters (the
     "Representatives");
 
          (iii) The unaudited selected financial information with respect to the
     consolidated results of operations and financial position of the Company
     for the five most recent fiscal years included in the Prospectus and
     included or incorporated by reference in Item 6 of the Company's Annual
     Report on Form 10-K for the most recent fiscal year agrees with the
     corresponding amounts (after restatement where applicable) in the audited
     consolidated financial statements for five such fiscal years which were
     included or incorporated by reference in the Company's Annual Reports on
     Form 10-K for such fiscal years;
 
          (iv) On the basis of limited procedures, not constituting an audit in
     accordance with generally accepted auditing standards, consisting of a
     reading of the unaudited financial statements and other information
     referred to below, a reading of the latest available interim financial
     statements of the Company and its subsidiaries, inspection of the minute
     books of the Company and its subsidiaries since the date of the latest
     audited financial statements included or incorporated by reference in the
     Prospectus, inquiries of officials of the Company and its subsidiaries
     responsible for financial and accounting matters and such other inquiries
     and procedures as may be specified in such letter, nothing came to their
     attention that caused them to believe that:
 
             (A) the unaudited condensed consolidated statements of income,
        consolidated balance sheets and consolidated statements of cash flows
        included or incorporated by reference in the Company's Quarterly Reports
        on Form 10-Q incorporated by reference in the Prospectus do not comply
        as to form in all material respects with the applicable accounting
        requirements of the Exchange Act as it applies to Form 10-Q and the
        related published rules and regulations thereunder or are not stated on
        a basis substantially consistent with the audited consolidated
        statements of income, consolidated balance sheets and consolidated
        statements of cash flows included or incorporated by reference in the
        Company's Annual Report on Form 10-K for the most recent fiscal year;
 
             (B) any other unaudited income statement data and balance sheet
        items included in the Prospectus do not agree with the corresponding
        items in the unaudited consolidated financial statements from which such
        data and items were derived, and any such unaudited data and items were
        not determined on a basis substantially consistent with the basis for
        the corresponding amounts in the audited consolidated financial
        statements included or incorporated by reference in the Company's Annual
        Report on Form 10-K for the most recent fiscal year;
 
             (C) the unaudited financial statements which were not included in
        the Prospectus but from which were derived the unaudited condensed
        financial statements referred to in clause (A) and any
 
                                        1
<PAGE>   17
 
        unaudited income statement data and balance sheet items included in the
        Prospectus and referred to in Clause (B) were not determined on a basis
        substantially consistent with the basis for the audited financial
        statements included or incorporated by reference in the Company's Annual
        Report on Form 10-K for the most recent fiscal year;
 
             (D) as of a specified date not more than five days prior to the
        date of such letter, there have been any changes in the consolidated
        capital stock (other than issuance of capital stock in connection with
        employee benefit plans, dividend reinvestment plans, and upon exercise 
        of options and stock appreciation rights, upon earn-outs of performance
        shares and upon conversions of convertible securities, in each case
        which were outstanding on the date of the latest balance sheet included
        or incorporated by reference in the Prospectus) or any increase in the
        consolidated long-term debt of the Company and its subsidiaries or any
        increases in any items specified by the Representatives, in each case as
        compared with amounts shown in the latest balance sheet included or
        incorporated by reference in the Prospectus, except in each case for
        changes, increases or decreases which the Prospectus discloses have
        occurred or may occur or which are described in such letter; and
 
             (E) for the period from the date of the latest financial statements
        included or incorporated by reference in the Prospectus to the specified
        date referred to in Clause (D) there were any decreases in consolidated
        net revenue or other items specified by the Representatives, or any
        increases in any items specified by the Representatives, in each cases
        as compared with the comparable period of the preceding year and with
        any other period of corresponding length specified by the
        Representatives, except in each case for increases or decreases which
        the Prospectus discloses have occurred or may occur or which are
        described in such letter; and
 
          (v) In addition to the audit referred to in their report(s) included
     or incorporated by reference in the Prospectus and the limited procedures,
     inspection of minute books, inquiries and other procedures referred to in
     paragraphs (iii) and (iv) above, they have carried out certain specified
     procedures, not constituting an audit in accordance with generally accepted
     auditing standards, with respect to certain amounts, percentages and
     financial information specified by the Representatives which are derived
     from the general accounting records of the Company and its subsidiaries,
     which appear in the Prospectus (excluding documents incorporated by
     reference), or in Part II of, or in exhibits and schedules to, the
     Registration Statements specified by the Representatives or in documents
     incorporated by reference in the Prospectus specified by the
     Representatives, and have compared certain of such amounts, percentages and
     financial information with the accounting records of the Company and its
     subsidiaries and have found them to be in agreement.
 
     All references in this Annex II to the Prospectus shall be deemed to refer
to the Prospectus (including the documents incorporated by reference therein) as
defined in the Underwriting Agreement as of the date of the letter delivered on
the date of the Pricing Agreement for purposes of such letter and to the
Prospectus as amended or supplemented (including the documents incorporated by
reference therein) in relation to the applicable Designated Securities for
purposes of the letter delivered at the Time of Delivery for such Designated
Securities.
 
                                        2

<PAGE>   1
 
<TABLE>
                <S>                              <C>                 <C>
                USX Corporation                  Dan D. Sandman                                EXHIBIT 5
                600 Grant Street                 General Counsel
                Pittsburgh, PA 15219-4776        and Secretary
                412 433 1117
                Telecopier 412 433 2015
</TABLE>
 
                                                                  March 30, 1994
 
              Securities and Exchange Commission
              450 Fifth Street, N.W.
              Washington, D.C. 20549
 
              Gentlemen:
 
              I am General Counsel and Secretary of USX Corporation, a Delaware
              corporation (hereinafter the "Corporation"), and have served as
              counsel to the Corporation in connection with the registration
              statement on Form S-3 (hereinafter the "Registration Statement")
              for the proposed issuance of up to an aggregate of $750,000,000
              principal amount of the Corporation's Debt Securities (the "Debt
              Securities").
 
              As General Counsel and Secretary, I am familiar with the
              Corporation's Certificate of Incorporation and its By-laws. I have
              also examined, or caused those acting under my supervision to have
              examined, the Registration Statement, the Indenture between the
              Corporation and PNC Bank, N.A. pursuant to which the Debt
              Securities will be issued (the "Indenture"), and such other
              records and documents, including certificates of government
              officials and corporate officers, that I have deemed necessary or
              desirable in rendering the opinion set forth below. In rendering
              such opinion I have presumed the genuineness of all documents
              examined and the accuracy of all statements of fact contained
              therein.
 
              Based upon the foregoing, I am of the opinion that when the Debt
              Securities have been duly authorized and are executed and
              authenticated in accordance with the terms of the Indenture and
              delivered to holders against receipt of payment, the Debt
              Securities will be legal, valid and binding obligations of the
              Corporation enforceable against it in accordance with the terms
              thereof. The foregoing opinion is qualified to the extent that
              enforceability may be limited by any bankruptcy, insolvency,
              reorganization, moratorium or other similar law affecting
              creditors rights generally and by general equitable principles.
 
              I hereby consent to the filing of this opinion as an exhibit to
              the Registration Statement.
 
              Very truly yours,


              /s/ Dan D. Sandman
              _______________________
              Dan D. Sandman

<PAGE>   1
 
                                                                      EXHIBIT 12
 
                                USX CORPORATION
               COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
                       TOTAL ENTERPRISE BASIS--UNAUDITED
                             (DOLLARS IN MILLIONS)
 
<TABLE>
<CAPTION>
                                                                     YEAR ENDED DECEMBER 31
                                                            ----------------------------------------
                                                            1993    1992    1991     1990      1989
                                                            ----    ----    ----    ------    ------
<S>                                                         <C>     <C>     <C>     <C>       <C>
Portion of rentals representing interest.................   $ 84    $ 87    $ 91    $   88    $   79
Capitalized interest.....................................    105      78      63        50        42
Other interest and fixed charges.........................    372     408     474       554       761
                                                            ----    ----    ----    ------    ------
Total fixed charges (A)..................................   $561    $573    $628    $  692    $  882
                                                            ====    ====    ====    ======    ======
                                                            
Earnings--pretax income (loss) with
  applicable adjustments (B).............................   $280    $376    $(53)   $1,935    $2,271
                                                            ====    ====    =====   ======    ======
                                                            
Ratio of (B) to (A)......................................    (a)     (a)     (a)      2.80      2.57
                                                            ====    ====    =====   ======    ======
                                                            
</TABLE>
 
- -----------------
 
(a) Earnings did not cover fixed charges by $281 million for 1993, by $197
    million for 1992 and by $681 million for 1991.

<PAGE>   1
 
                                                                    EXHIBIT 23.1
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
     We hereby consent to the incorporation by reference in the Prospectus
constituting part of this Registration Statement on Form S-3 of our reports
dated February 8, 1994, relating to the consolidated financial statements of USX
Corporation, the financial statements of the Marathon Group, the financial
statements of the U.S. Steel Group, and the financial statements of the Delhi
Group, appearing on pages U-3, M-3, S-3, and D-3, respectively, of the Annual
Report on Form 10-K of USX Corporation for the year ended December 31, 1993. We
also consent to the reference to us under the heading "Experts" in such
Prospectus.
 
PRICE WATERHOUSE
Pittsburgh, Pennsylvania
March 30, 1994

<PAGE>   1
 
                                                                      EXHIBIT 24
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS:
 
     That the undersigned does hereby make, constitute and appoint Robert M.
Hernandez, Gretchen R. Haggerty and Lewis B. Jones, or any one of them, my true
and lawful attorneys-in-fact to sign and execute for me and on my behalf a
registration statement on Form S-3 to be filed with the Securities and Exchange
Commission in connection with the issuance of $1.0 billion debt securities, and
any and all amendments to such registration statement to be filed with the
Securities and Exchange Commission pursuant to the Securities Act of 1933, as
amended, in such form as they or any one or more of them may approve, and to do
any and all other acts which said attorneys-in-fact may deem necessary or
desirable to enable USX Corporation to comply with said Act and the rules and
regulations thereunder.
 
     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 29th day of
March, 1994.
 
                                                   /s/ NEIL A. ARMSTRONG
                                            ------------------------------------
                                                     Neil A. Armstrong
<PAGE>   2
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS:
 
     That the undersigned does hereby make, constitute and appoint Robert M.
Hernandez, Gretchen R. Haggerty and Lewis B. Jones, or any one of them, my true
and lawful attorneys-in-fact to sign and execute for me and on my behalf a
registration statement on Form S-3 to be filed with the Securities and Exchange
Commission in connection with the issuance of $1.0 billion debt securities, and
any and all amendments to such registration statement to be filed with the
Securities and Exchange Commission pursuant to the Securities Act of 1933, as
amended, in such form as they or any one or more of them may approve, and to do
any and all other acts which said attorneys-in-fact may deem necessary or
desirable to enable USX Corporation to comply with said Act and the rules and
regulations thereunder.
 
     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 29th day of
March, 1994.
 
                                                     /s/ V. G. BEGHINI
                                            ------------------------------------
                                                       V. G. Beghini
<PAGE>   3
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS:
 
     That the undersigned does hereby make, constitute and appoint Robert M.
Hernandez, Gretchen R. Haggerty and Lewis B. Jones, or any one of them, my true
and lawful attorneys-in-fact to sign and execute for me and on my behalf a
registration statement on Form S-3 to be filed with the Securities and Exchange
Commission in connection with the issuance of $1.0 billion debt securities, and
any and all amendments to such registration statement to be filed with the
Securities and Exchange Commission pursuant to the Securities Act of 1933, as
amended, in such form as they or any one or more of them may approve, and to do
any and all other acts which said attorneys-in-fact may deem necessary or
desirable to enable USX Corporation to comply with said Act and the rules and
regulations thereunder.
 
     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 29th day of
March, 1994.
 
                                                /s/ JEANETTE GRASSELLI BROWN
                                            ------------------------------------
                                                  Jeanette Grasselli Brown
<PAGE>   4
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS:
 
     That the undersigned does hereby make, constitute and appoint Robert M.
Hernandez, Gretchen R. Haggerty and Lewis B. Jones, or any one of them, my true
and lawful attorneys-in-fact to sign and execute for me and on my behalf a
registration statement on Form S-3 to be filed with the Securities and Exchange
Commission in connection with the issuance of $1.0 billion debt securities, and
any and all amendments to such registration statement to be filed with the
Securities and Exchange Commission pursuant to the Securities Act of 1933, as
amended, in such form as they or any one or more of them may approve, and to do
any and all other acts which said attorneys-in-fact may deem necessary or
desirable to enable USX Corporation to comply with said Act and the rules and
regulations thereunder.
 
     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 29th day of
March, 1994.
 
                                                      /s/ C. A. CORRY
                                            ------------------------------------
                                                        C. A. Corry
<PAGE>   5
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS:
 
     That the undersigned does hereby make, constitute and appoint Robert M.
Hernandez, Gretchen R. Haggerty and Lewis B. Jones, or any one of them, my true
and lawful attorneys-in-fact to sign and execute for me and on my behalf a
registration statement on Form S-3 to be filed with the Securities and Exchange
Commission in connection with the issuance of $1.0 billion debt securities, and
any and all amendments to such registration statement to be filed with the
Securities and Exchange Commission pursuant to the Securities Act of 1933, as
amended, in such form as they or any one or more of them may approve, and to do
any and all other acts which said attorneys-in-fact may deem necessary or
desirable to enable USX Corporation to comply with said Act and the rules and
regulations thereunder.
 
     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 29th day of
March, 1994.
 
                                                   /s/ JAMES A. D. GEIER
                                            ------------------------------------
                                                     James A. D. Geier
<PAGE>   6
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS:
 
     That the undersigned does hereby make, constitute and appoint Robert M.
Hernandez, Gretchen R. Haggerty and Lewis B. Jones, or any one of them, my true
and lawful attorneys-in-fact to sign and execute for me and on my behalf a
registration statement on Form S-3 to be filed with the Securities and Exchange
Commission in connection with the issuance of $1.0 billion debt securities, and
any and all amendments to such registration statement to be filed with the
Securities and Exchange Commission pursuant to the Securities Act of 1933, as
amended, in such form as they or any one or more of them may approve, and to do
any and all other acts which said attorneys-in-fact may deem necessary or
desirable to enable USX Corporation to comply with said Act and the rules and
regulations thereunder.
 
     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 29th day of
March, 1994.
 
                                                  /s/ ROBERT M. HERNANDEZ
                                            ------------------------------------
                                                    Robert M. Hernandez
<PAGE>   7
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS:
 
     That the undersigned does hereby make, constitute and appoint Robert M.
Hernandez, Gretchen R. Haggerty and Lewis B. Jones, or any one of them, my true
and lawful attorneys-in-fact to sign and execute for me and on my behalf a
registration statement on Form S-3 to be filed with the Securities and Exchange
Commission in connection with the issuance of $1.0 billion debt securities, and
any and all amendments to such registration statement to be filed with the
Securities and Exchange Commission pursuant to the Securities Act of 1933, as
amended, in such form as they or any one or more of them may approve, and to do
any and all other acts which said attorneys-in-fact may deem necessary or
desirable to enable USX Corporation to comply with said Act and the rules and
regulations thereunder.
 
     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 29th day of
March, 1994.
 
                                                     /s/ LEWIS B. JONES
                                            ------------------------------------
                                                       Lewis B. Jones
<PAGE>   8
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS:
 
     That the undersigned does hereby make, constitute and appoint Robert M.
Hernandez, Gretchen R. Haggerty and Lewis B. Jones, or any one of them, my true
and lawful attorneys-in-fact to sign and execute for me and on my behalf a
registration statement on Form S-3 to be filed with the Securities and Exchange
Commission in connection with the issuance of $1.0 billion debt securities, and
any and all amendments to such registration statement to be filed with the
Securities and Exchange Commission pursuant to the Securities Act of 1933, as
amended, in such form as they or any one or more of them may approve, and to do
any and all other acts which said attorneys-in-fact may deem necessary or
desirable to enable USX Corporation to comply with said Act and the rules and
regulations thereunder.
 
     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 29th day of
March, 1994.
 
                                                     /s/ CHARLES R. LEE
                                            ------------------------------------
                                                       Charles R. Lee
<PAGE>   9
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS:
 
     That the undersigned does hereby make, constitute and appoint Robert M.
Hernandez, Gretchen R. Haggerty and Lewis B. Jones, or any one of them, my true
and lawful attorneys-in-fact to sign and execute for me and on my behalf a
registration statement on Form S-3 to be filed with the Securities and Exchange
Commission in connection with the issuance of $1.0 billion debt securities, and
any and all amendments to such registration statement to be filed with the
Securities and Exchange Commission pursuant to the Securities Act of 1933, as
amended, in such form as they or any one or more of them may approve, and to do
any and all other acts which said attorneys-in-fact may deem necessary or
desirable to enable USX Corporation to comply with said Act and the rules and
regulations thereunder.
 
     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 29th day of
March, 1994.
 
                                                      /s/ PAUL E. LEGO
                                            ------------------------------------
                                                        Paul E. Lego
<PAGE>   10
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS:
 
     That the undersigned does hereby make, constitute and appoint Robert M.
Hernandez, Gretchen R. Haggerty and Lewis B. Jones, or any one of them, my true
and lawful attorneys-in-fact to sign and execute for me and on my behalf a
registration statement on Form S-3 to be filed with the Securities and Exchange
Commission in connection with the issuance of $1.0 billion debt securities, and
any and all amendments to such registration statement to be filed with the
Securities and Exchange Commission pursuant to the Securities Act of 1933, as
amended, in such form as they or any one or more of them may approve, and to do
any and all other acts which said attorneys-in-fact may deem necessary or
desirable to enable USX Corporation to comply with said Act and the rules and
regulations thereunder.
 
     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 29th day of
March, 1994.
 
                                                  /s/ JOHN F. MCGILLICUDDY
                                            ------------------------------------
                                                    John F. McGillicuddy
<PAGE>   11
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS:
 
     That the undersigned does hereby make, constitute and appoint Robert M.
Hernandez, Gretchen R. Haggerty and Lewis B. Jones, or any one of them, my true
and lawful attorneys-in-fact to sign and execute for me and on my behalf a
registration statement on Form S-3 to be filed with the Securities and Exchange
Commission in connection with the issuance of $1.0 billion debt securities, and
any and all amendments to such registration statement to be filed with the
Securities and Exchange Commission pursuant to the Securities Act of 1933, as
amended, in such form as they or any one or more of them may approve, and to do
any and all other acts which said attorneys-in-fact may deem necessary or
desirable to enable USX Corporation to comply with said Act and the rules and
regulations thereunder.
 
     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 29th day of
March, 1994.
 
                                                    /s/ JOHN M. RICHMAN
                                            ------------------------------------
                                                      John M. Richman
<PAGE>   12
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS:
 
     That the undersigned does hereby make, constitute and appoint Robert M.
Hernandez, Gretchen R. Haggerty and Lewis B. Jones, or any one of them, my true
and lawful attorneys-in-fact to sign and execute for me and on my behalf a
registration statement on Form S-3 to be filed with the Securities and Exchange
Commission in connection with the issuance of $1.0 billion debt securities, and
any and all amendments to such registration statement to be filed with the
Securities and Exchange Commission pursuant to the Securities Act of 1933, as
amended, in such form as they or any one or more of them may approve, and to do
any and all other acts which said attorneys-in-fact may deem necessary or
desirable to enable USX Corporation to comply with said Act and the rules and
regulations thereunder.
 
     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 29th day of
March, 1994.
 
                                                     /s/ D. M. RODERICK
                                            ------------------------------------
                                                       D. M. Roderick
<PAGE>   13
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS:
 
     That the undersigned does hereby make, constitute and appoint Robert M.
Hernandez, Gretchen R. Haggerty and Lewis B. Jones, or any one of them, my true
and lawful attorneys-in-fact to sign and execute for me and on my behalf a
registration statement on Form S-3 to be filed with the Securities and Exchange
Commission in connection with the issuance of $1.0 billion debt securities, and
any and all amendments to such registration statement to be filed with the
Securities and Exchange Commission pursuant to the Securities Act of 1933, as
amended, in such form as they or any one or more of them may approve, and to do
any and all other acts which said attorneys-in-fact may deem necessary or
desirable to enable USX Corporation to comply with said Act and the rules and
regulations thereunder.
 
     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 29th day of
March, 1994.
 
                                                      /s/ T. J. USHER
                                            ------------------------------------
                                                        T. J. Usher
<PAGE>   14
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS:
 
     That the undersigned does hereby make, constitute and appoint Robert M.
Hernandez, Gretchen R. Haggerty and Lewis B. Jones, or any one of them, my true
and lawful attorneys-in-fact to sign and execute for me and on my behalf a
registration statement on Form S-3 to be filed with the Securities and Exchange
Commission in connection with the issuance of $1.0 billion debt securities, and
any and all amendments to such registration statement to be filed with the
Securities and Exchange Commission pursuant to the Securities Act of 1933, as
amended, in such form as they or any one or more of them may approve, and to do
any and all other acts which said attorneys-in-fact may deem necessary or
desirable to enable USX Corporation to comply with said Act and the rules and
regulations thereunder.
 
     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 29th day of
March, 1994.
 
                                                    /s/ DAVID R. WHITWAM
                                            ------------------------------------
                                                      David R. Whitwam
<PAGE>   15
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS:
 
     That the undersigned does hereby make, constitute and appoint Robert M.
Hernandez, Gretchen R. Haggerty and Lewis B. Jones, or any one of them, my true
and lawful attorneys-in-fact to sign and execute for me and on my behalf a
registration statement on Form S-3 to be filed with the Securities and Exchange
Commission in connection with the issuance of $1.0 billion debt securities, and
any and all amendments to such registration statement to be filed with the
Securities and Exchange Commission pursuant to the Securities Act of 1933, as
amended, in such form as they or any one or more of them may approve, and to do
any and all other acts which said attorneys-in-fact may deem necessary or
desirable to enable USX Corporation to comply with said Act and the rules and
regulations thereunder.
 
     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 29th day of
March, 1994.
 
                                                     /s/ D. C. YEARLEY
                                            ------------------------------------
                                                       D. C. Yearley


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