Exhibit 99.3


               U. S. Steel Group



          Index to 1999 Financial Statements and Supplementary Data



                                                                           Page
                                                                           ----
                                                                        
          Management's Report............................................  S-1

          Audited Financial Statements:

            Report of Independent Accountants............................  S-1

            Statement of Operations......................................  S-2

            Balance Sheet................................................  S-3

            Statement of Cash Flows......................................  S-4

            Notes to Financial Statements................................  S-5

          Selected Quarterly Financial Data..............................  S-21

          Principal Unconsolidated Affiliates............................  S-22

          Supplementary Information......................................  S-22



          U.S. Steel Group


               Explanatory Note Regarding Financial Information


               Although the financial statements of the U. S. Steel Group and
               the Marathon Group separately report the assets, liabilities
               (including contingent liabilities) and stockholders' equity of
               USX attributed to each such Group, such attribution does not
               affect legal title to such assets and responsibility for such
               liabilities. Holders of USX - U. S. Steel Group Common Stock and
               USX - Marathon Group Common Stock are holders of common stock of
               USX and continue to be subject to all the risks associated with
               an investment in USX and all of its businesses and liabilities.
               Financial impacts arising from one Group that affect the overall
               cost of USX's capital could affect the results of operations and
               financial condition of the other Group. In addition, net losses
               of either Group, as well as dividends or distributions on any
               class of USX Common Stock or series of Preferred Stock and
               repurchases of any class of USX Common Stock or series of
               Preferred Stock, will reduce the funds of USX legally available
               for payment of dividends on both classes of USX Common Stock.
               Accordingly, the USX consolidated financial information should be
               read in connection with the U. S. Steel Group financial
               information.


          Management's Report

          The accompanying financial statements of the U. S. Steel Group are the
          responsibility of and have been prepared by USX Corporation (USX) in
          conformity with accounting principles generally accepted in the United
          States. They necessarily include some amounts that are based on best
          judgments and estimates. The U. S. Steel Group financial information
          displayed in other sections of this report is consistent with these
          financial statements.

               USX seeks to assure the objectivity and integrity of its
          financial records by careful selection of its managers, by
          organizational arrangements that provide an appropriate division of
          responsibility and by communications programs aimed at assuring that
          its policies and methods are understood throughout the organization.

               USX has a comprehensive formalized system of internal accounting
          controls designed to provide reasonable assurance that assets are
          safeguarded and that financial records are reliable. Appropriate
          management monitors the system for compliance, and the internal
          auditors independently measure its effectiveness and recommend
          possible improvements thereto. In addition, as part of their audit of
          the financial statements, USX's independent accountants, who are
          elected by the stockholders, review and test the internal accounting
          controls selectively to establish a basis of reliance thereon in
          determining the nature, extent and timing of audit tests to be
          applied.

               The Board of Directors pursues its oversight role in the area of
          financial reporting and internal accounting control through its Audit
          Committee. This Committee, composed solely of nonmanagement directors,
          regularly meets (jointly and separately) with the independent
          accountants, management and internal auditors to monitor the proper
          discharge by each of its responsibilities relative to internal
          accounting controls and the consolidated and group financial
          statements.


                                                                     
          Thomas J. Usher                    Robert M. Hernandez           Kenneth L. Matheny
          Chairman, Board of Directors       Vice Chairman                 Vice President
          & Chief Executive Officer          & Chief Financial Officer     & Comptroller


          Report of Independent Accountants

          To the Stockholders of USX Corporation:

          In our opinion, the accompanying financial statements appearing on
          pages S-2 through S-20 present fairly, in all material respects, the
          financial position of the U. S. Steel Group at December 31, 1999 and
          1998, and the results of its operations and its cash flows for each of
          the three years in the period ended December 31, 1999, in conformity
          with accounting principles generally accepted in the United States.
          These financial statements are the responsibility of USX's management;
          our responsibility is to express an opinion on these financial
          statements based on our audits. We conducted our audits of these
          statements in accordance with auditing standards generally accepted in
          the United States, which require that we plan and perform the audit to
          obtain reasonable assurance about whether the financial statements are
          free of material misstatement. An audit includes examining, on a test
          basis, evidence supporting the amounts and disclosures in the
          financial statements, assessing the accounting principles used and
          significant estimates made by management, and evaluating the overall
          financial statement presentation. We believe that our audits provide a
          reasonable basis for the opinion expressed above.

               The U. S. Steel Group is a business unit of USX Corporation (as
          described in Note 1, page S-5); accordingly, the financial statements
          of the U. S. Steel Group should be read in connection with the
          consolidated financial statements of USX Corporation.



          PricewaterhouseCoopers LLP
          600 Grant Street, Pittsburgh, Pennsylvania 15219-2794
          February 8, 2000

                                                                             S-1


          Statement of Operations



          (Dollars in millions)                                                       1999          1998          1997
          ------------------------------------------------------------------------------------------------------------
                                                                                                       
          Revenues:
           Sales                                                                    $5,380        $6,184        $6,814
           Income (loss) from affiliates                                               (89)           46            69
           Net gains on disposal of assets                                              21            54            57
           Other income (loss)                                                           2            (1)            1
                                                                                    ------        ------        ------
              Total revenues                                                         5,314         6,283         6,941
                                                                                    ------        ------        ------
          Costs and expenses:
           Cost of sales (excludes items shown below)                                4,928         5,410         5,762
           Selling, general and administrative expenses (credits) (Note 11)           (283)         (201)         (137)
           Depreciation, depletion and amortization                                    304           283           303
           Taxes other than income taxes                                               215           212           240
                                                                                    ------        ------        ------
              Total costs and expenses                                               5,164         5,704         6,168
                                                                                    ------        ------        ------
          Income from operations                                                       150           579           773
          Net interest and other financial costs (Note 6)                               74            42            87
                                                                                    ------        ------        ------
          Income before income taxes and extraordinary losses                           76           537           686
          Provision for estimated income taxes (Note 14)                                25           173           234
                                                                                    ------        ------        ------
          Income before extraordinary losses                                            51           364           452
          Extraordinary losses (Note 5)                                                  7             -             -
                                                                                    ------        ------        ------
          Net income                                                                    44           364           452
          Noncash credit from exchange of preferred stock (Note 18)                      -             -            10
          Dividends on preferred stock                                                  (9)           (9)          (13)
                                                                                    ------        ------        ------
          Net income applicable to Steel Stock                                      $   35        $  355        $  449
          ------------------------------------------------------------------------------------------------------------


          Income Per Common Share Applicable to Steel Stock



                                                                                      1999          1998          1997
          ------------------------------------------------------------------------------------------------------------
                                                                                                       
          Basic:
           Income before extraordinary losses                                       $  .48        $ 4.05        $ 5.24
           Extraordinary losses                                                        .08             -             -
                                                                                    ------        ------        ------
           Net income                                                               $  .40        $ 4.05        $ 5.24
          Diluted:
           Income before extraordinary losses                                       $  .48        $ 3.92        $ 4.88
           Extraordinary losses                                                        .08             -             -
                                                                                    ------        ------        ------
           Net income                                                               $  .40        $ 3.92        $ 4.88
          ------------------------------------------------------------------------------------------------------------

          See Note 21, for a description and computation of income per common
          share.
          The accompanying notes are an integral part of these financial
          statements.

S-2


          Balance Sheet



          (Dollars in millions)                                                   December 31         1999         1998
          -------------------------------------------------------------------------------------------------------------
                                                                                                        
          Assets

          Current assets:
           Cash and cash equivalents                                                                $   22       $    9
           Receivables, less allowance for doubtful accounts
            of $10 and $9                                                                              838          392
           Income taxes receivable (Note 12)                                                            97            -
           Inventories (Note 13)                                                                       743          698
           Deferred income tax benefits (Note 14)                                                      281          176
                                                                                                    ------       ------
              Total current assets                                                                   1,981        1,275

          Investments and long-term receivables,
           less reserves of $3 and $10 (Notes 12 and 15)                                               572          743
          Property, plant and equipment - net (Note 17)                                              2,516        2,500
          Prepaid pensions (Note 11)                                                                 2,404        2,172
          Other noncurrent assets                                                                       52           59
                                                                                                    ------       ------
              Total assets                                                                          $7,525       $6,749
          -------------------------------------------------------------------------------------------------------------
          Liabilities

          Current liabilities:
           Notes payable                                                                            $    -       $   13
           Accounts payable                                                                            739          501
           Payroll and benefits payable                                                                322          330
           Accrued taxes                                                                               177          150
           Accrued interest                                                                             15           10
           Long-term debt due within one year (Note 10)                                                 13           12
                                                                                                    ------       ------
              Total current liabilities                                                              1,266        1,016

          Long-term debt (Note 10)                                                                     902          464
          Deferred income taxes (Note 14)                                                              348          129
          Employee benefits (Note 11)                                                                2,245        2,315
          Deferred credits and other liabilities                                                       459          484
          Preferred stock of subsidiary (Note 9)                                                        66           66
          USX obligated mandatorily redeemable convertible preferred
           securities of a subsidiary trust holding solely junior subordinated
           convertible debentures of USX (Note 18)                                                     183          182

          Stockholders' Equity (Note 19)

          Preferred stock                                                                                3            3
          Common stockholders' equity                                                                2,053        2,090
                                                                                                    ------       ------
              Total stockholders' equity                                                             2,056        2,093
                                                                                                    ------       ------
              Total liabilities and stockholders' equity                                            $7,525       $6,749
          -------------------------------------------------------------------------------------------------------------

          The accompanying notes are an integral part of these financial
          statements.

                                                                             S-3


          Statement of Cash Flows



          (Dollars in millions)                                                                   1999          1998          1997
          ------------------------------------------------------------------------------------------------------------------------
                                                                                                                    
          Increase (decrease) in cash and cash equivalents

          Operating activities:

          Net income                                                                             $  44         $ 364         $ 452
          Adjustments to reconcile to net cash provided  from (used in) operating  activities:
            Extraordinary losses                                                                     7             -             -
            Depreciation, depletion and amortization                                               304           283           303
            Pensions and other postretirement benefits                                            (256)         (215)         (349)
            Deferred income taxes                                                                  107           158           193
            Net gains on disposal of assets                                                        (21)          (54)          (57)
            Changes in: Current receivables - sold                                                (320)          (30)            -
                                            - operating turnover                                  (242)          232           (24)
                              Inventories                                                          (14)            7           (57)
                              Current accounts payable and accrued expenses                        239          (285)           61
            All other - net                                                                         72           (80)          (46)
                                                                                                 -----         -----         -----
              Net cash provided from (used in) operating activities                                (80)          380           476
                                                                                                 -----         -----         -----
          Investing activities:

          Capital expenditures                                                                    (287)         (310)         (261)
          Disposal of assets                                                                        10            21           420
          Restricted cash - withdrawals                                                             15            35             -
                          - deposits                                                               (17)          (35)            -
          Affiliates - investments                                                                 (15)          (73)          (26)
                     - loans and advances                                                            -            (1)            -
                     - repayments of loans and advances                                              -             -             2
          All other - net                                                                            -            14            (1)
                                                                                                 -----         -----         -----
              Net cash provided from (used in) investing activities                               (294)         (349)          134
                                                                                                 -----         -----         -----
          Financing activities (Note 9):

          Increase (decrease) in U. S. Steel Group's portion of
           USX consolidated debt                                                                   147            13          (561)
          Specifically attributed debt:
            Borrowings                                                                             350             -             -
            Repayments                                                                             (11)           (4)           (6)
          Steel Stock issued                                                                         -            55            48
          Preferred stock repurchased                                                               (2)           (8)            -
          Dividends paid                                                                           (97)          (96)          (96)
                                                                                                 -----         -----         -----
              Net cash provided from (used in) financing activities                                387           (40)         (615)
                                                                                                 -----         -----         -----
          Net increase (decrease) in cash and cash equivalents                                      13            (9)           (5)

          Cash and cash equivalents at beginning of year                                             9            18            23
                                                                                                 -----         -----         -----
          Cash and cash equivalents at end of year                                               $  22         $   9         $  18
          ------------------------------------------------------------------------------------------------------------------------

          See Note 8, for supplemental cash flow information.
          The accompanying notes are an integral part of these financial
          statements.

S-4


                         Notes to Financial Statements

1. Basis of Presentation

               After the redemption of the USX - Delhi Group stock on January
               26, 1998, USX Corporation (USX) has two classes of common stock:
               USX - U. S. Steel Group Common Stock (Steel Stock) and USX -
               Marathon Group Common Stock (Marathon Stock), which are intended
               to reflect the performance of the U. S. Steel Group and the
               Marathon Group, respectively.
                    The financial statements of the U. S. Steel Group include
               the financial position, results of operations and cash flows for
               all businesses of USX other than the businesses, assets and
               liabilities included in the Marathon Group, and a portion of the
               corporate assets and liabilities and related transactions which
               are not separately identified with ongoing operating units of
               USX. The U. S. Steel Group financial statements are prepared
               using the amounts included in the USX consolidated financial
               statements. For a description of the U. S. Steel Group's
               operating segment, see Note 7.
                    Although the financial statements of the U. S. Steel Group
               and the Marathon Group separately report the assets, liabilities
               (including contingent liabilities) and stockholders' equity of
               USX attributed to each such Group, such attribution of assets,
               liabilities (including contingent liabilities) and stockholders'
               equity between the U. S. Steel Group and the Marathon 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 Steel Stock and Marathon Stock are
               holders of common stock of USX, and continue to be subject to all
               the risks associated with an investment in USX and all of its
               businesses and liabilities. Financial impacts arising from one
               Group that affect the overall cost of USX's capital could affect
               the results of operations and financial condition of the other
               Group. In addition, net losses of either Group, as well as
               dividends and distributions on any class of USX Common Stock or
               series of preferred stock and repurchases of any class of USX
               Common Stock or series of preferred stock at prices in excess of
               par or stated value, will reduce the funds of USX legally
               available for payment of dividends on both classes of Common
               Stock. Accordingly, the USX consolidated financial information
               should be read in connection with the U. S. Steel Group financial
               information.

- -------------------------------------------------------------------------------
2. Summary of Principal Accounting Policies

               Principles applied in consolidation - These financial statements
               include the accounts of the U. S. Steel Group. The U. S. Steel
               Group and the Marathon Group financial statements, taken
               together, comprise all of the accounts included in the USX
               consolidated financial statements.
                    Investments in entities over which the U. S. Steel Group has
               significant influence are accounted for using the equity method
               of accounting and are carried at the U. S. Steel Group's share of
               net assets plus loans and advances.
                    Investments in companies whose stock is publicly traded are
               carried at market value. The difference between the cost of these
               investments and market value is recorded in other comprehensive
               income (net of tax). Investments in companies whose stock has no
               readily determinable fair value are carried at cost.

               Use of estimates - Generally accepted accounting principles
               require management to make estimates and assumptions that affect
               the reported amounts of assets and liabilities, the disclosure of
               contingent assets and liabilities at year-end and the reported
               amounts of revenues and expenses during the year. Significant
               items subject to such estimates and assumptions include the
               carrying value of long-lived assets; valuation allowances for
               receivables, inventories and deferred income tax assets;
               environmental liabilities; liabilities for potential tax
               deficiencies and potential litigation claims and settlements; and
               assets and obligations related to employee benefits.
               Additionally, certain estimated liabilities are recorded when
               management commits to a plan to close an operating facility or to
               exit a business activity. Actual results could differ from the
               estimates and assumptions used.

               Revenue recognition - Revenues principally include sales,
               dividend and affiliate income, gains or losses on the disposal of
               assets and gains or losses from changes in ownership interests.
                    Sales are recognized when products are shipped or services
               are provided to customers. Income from affiliates includes the U.
               S. Steel Group's proportionate share of income from equity method
               investments.
                    When long-lived assets depreciated on an individual basis
               are sold or otherwise disposed of, any gains or losses are
               reflected in income. Gains on disposal of long-lived assets are
               recognized when earned, which is generally at the time of
               closing. If a loss on disposal is expected, such losses are
               recognized when long-lived assets are reclassified as assets held
               for sale. Proceeds from disposal of long-lived assets depreciated
               on a group basis are credited to accumulated depreciation,
               depletion and amortization with no immediate effect on income.
                    Gains or losses from a change in ownership of an
               unconsolidated affiliate are recognized in revenues in the period
               of change.

                                                                             S-5


                Cash and cash equivalents - Cash and cash equivalents include
                cash on hand and on deposit and highly liquid debt instruments
                with maturities generally of three months or less.

                Inventories - Inventories are carried at lower of cost or
                market. Cost of inventories is determined primarily under the
                last-in, first-out (LIFO) method.

                Derivative instruments - The U. S. Steel Group uses commodity-
                based derivative instruments to manage its exposure to price
                risk. Management is authorized to use futures, forwards, swaps
                and options related to the purchase of natural gas, refined
                products and nonferrous metals used in steel operations. For
                transactions that qualify for hedge accounting, the resulting
                gains or losses are deferred and subsequently recognized in
                income from operations, as a component of sales or cost of
                sales, in the same period as the underlying physical
                transaction. To qualify for hedge accounting, derivative
                positions cannot remain open if the underlying physical market
                risk has been removed. Recorded deferred gains or losses are
                reflected within other current and noncurrent assets or accounts
                payable and deferred credits and other liabilities, as
                appropriate.

                Long-lived assets - Depreciation is generally computed using a
                modified straight-line method based upon estimated lives of
                assets and production levels. The modification factors range
                from a minimum of 85% at a production level below 81% of
                capability, to a maximum of 105% for a 100% production level. No
                modification is made at the 95% production level, considered the
                normal long-range level.
                    Depletion of mineral properties is based on rates which are
                expected to amortize cost over the estimated tonnage of minerals
                to be removed.
                    U. S. Steel Group evaluates impairment of its long-lived
                assets on an individual asset basis or by logical groupings of
                assets. Assets deemed to be impaired are written down to their
                fair value, including any related goodwill, using discounted
                future cash flows and, if available, comparable market values.

                Environmental remediation - The U. S. Steel Group provides for
                remediation costs and penalties when the responsibility to
                remediate is probable and the amount of associated costs is
                reasonably determinable. Generally, the timing of remediation
                accruals coincides with completion of a feasibility study or the
                commitment to a formal plan of action. Remediation liabilities
                are accrued based on estimates of known environmental exposure
                and are discounted in certain instances.

                Postemployment benefits - The U. S. Steel Group recognizes an
                obligation to provide postemployment benefits, primarily for
                disability-related claims covering indemnity and medical
                payments. The obligation for these claims and the related
                periodic costs are measured using actuarial techniques and
                assumptions, including an appropriate discount rate, analogous
                to the required methodology for measuring pension and other
                postretirement benefit obligations. Actuarial gains and losses
                are deferred and amortized over future periods.

                Insurance - The U. S. Steel Group is insured for catastrophic
                casualty and certain property and business interruption
                exposures, as well as those risks required to be insured by law
                or contract. Costs resulting from noninsured losses are charged
                against income upon occurrence.

                Reclassifications - Certain reclassifications of prior years'
                data have been made to conform to 1999 classifications.

S-6


- ------------------------------------------------------------------------------
3. New Accounting Standards

               Effective January 1, 1997, USX adopted American Institute of
               Certified Public Accountants Statement of Position No. 96-1,
               "Environmental Remediation Liabilities" (SOP 96-1), which
               provides additional interpretation of existing accounting
               standards related to recognition, measurement and disclosure of
               environmental remediation liabilities. As a result of adopting
               SOP 96-1, the U. S. Steel Group identified additional
               environmental remediation liabilities of $35 million, of which
               $28 million was discounted to a present value of $13 million and
               $7 million was not discounted. Assumptions used in the
               calculation of the present value amount included an inflation
               factor of 2% and an interest rate of 7% over a range of 22 to 30
               years. The net unfavorable effect of adoption on the U. S. Steel
               Group's income from operations at January 1, 1997, was $20
               million.
                    In June 1998, the Financial Accounting Standards Board
               issued Statement of Financial Accounting Standards No. 133,
               "Accounting for Derivative Instruments and Hedging Activities"
               (SFAS No. 133). This new Standard requires recognition of all
               derivatives as either assets or liabilities at fair value. SFAS
               No. 133 may result in additional volatility in both current
               period earnings and other comprehensive income as a result of
               recording recognized and unrecognized gains and losses resulting
               from changes in the fair value of derivative instruments. The
               transition adjustment resulting from adoption of SFAS No. 133
               will be reported as a cumulative effect of a change in accounting
               principle.
                    Under the new Standard, USX may elect not to designate
               certain derivative instruments as hedges even if the strategy
               qualifies for hedge accounting treatment. This approach would
               eliminate the administrative effort needed to measure
               effectiveness and monitor such instruments; however, this
               approach also may result in additional volatility in current
               period earnings.
                    USX cannot reasonably estimate the effect of adoption on
               either the financial position or results of operations. It is not
               possible to estimate what effect this Statement will have on
               future results of operations, although greater period-to-period
               volatility is likely. USX plans to adopt the Standard effective
               January 1, 2001.

- --------------------------------------------------------------------------------
4. Corporate Activities

               Financial activities - As a matter of policy, USX manages most
               financial activities on a centralized, consolidated basis. Such
               financial activities include the investment of surplus cash; the
               issuance, repayment and repurchase of short-term and long-term
               debt; the issuance, repurchase and redemption of preferred stock;
               and the issuance and repurchase of common stock. Transactions
               related primarily to invested cash, short-term and long-term debt
               (including convertible debt), related net interest and other
               financial costs, and preferred stock and related dividends are
               attributed to the U. S. Steel Group, the Marathon Group and,
               prior to November 1, 1997, the Delhi Group based upon the cash
               flows of each group for the periods presented and the initial
               capital structure of each group. Most financing transactions are
               attributed to and reflected in the financial statements of the
               groups. See Note 9, for the U. S. Steel Group's portion of USX's
               financial activities attributed to the groups. However,
               transactions such as leases, certain collateralized financings,
               certain indexed debt instruments, financial activities of
               consolidated entities which are less than wholly owned by USX and
               transactions related to securities convertible solely into any
               one class of common stock are or will be specifically attributed
               to and reflected in their entirety in the financial statements of
               the group to which they relate.

               Corporate general and administrative costs - Corporate general
               and administrative costs are allocated to the U. S. Steel Group,
               the Marathon Group and, prior to November 1, 1997, the Delhi
               Group based upon utilization or other methods management believes
               to be reasonable and which consider certain measures of business
               activities, such as employment, investments and sales. The costs
               allocated to the U. S. Steel Group were $17 million in 1999, $24
               million in 1998 and $33 million in 1997, and primarily consist of
               employment costs including pension effects, professional
               services, facilities and other related costs associated with
               corporate activities.

               Income taxes - All members of the USX affiliated group are
               included in the consolidated United States federal income tax
               return filed by USX. Accordingly, the provision for federal
               income taxes and the related payments or refunds of tax are
               determined on a consolidated basis. The consolidated provision
               and the related tax payments or refunds have been reflected in
               the U. S. Steel Group, the Marathon Group and, prior to November
               1, 1997, the Delhi Group financial statements in accordance

                                                                             S-7


               with USX's tax allocation policy. In general, such policy
               provides that the consolidated tax provision and related tax
               payments or refunds are allocated among the U. S. Steel Group,
               Marathon Group and, prior to November 1, 1997, the Delhi Group,
               for group financial statement purposes, based principally upon
               the financial income, taxable income, credits, preferences and
               other amounts directly related to the respective groups.
                    For tax provision and settlement purposes, tax benefits
               resulting from attributes (principally net operating losses and
               various tax credits), which cannot be utilized by one of the
               groups on a separate return basis but which can be utilized on a
               consolidated basis in that year or in a carryback year, are
               allocated to the group that generated the attributes. To the
               extent that one of the groups is allocated a consolidated tax
               attribute which, as a result of expiration or otherwise, is not
               ultimately utilized on the consolidated tax return, the prior
               years' allocation of such attribute is adjusted such that the
               effect of the expiration is borne by the group that generated the
               attribute. Also, if a tax attribute cannot be utilized on a
               consolidated basis in the year generated or in a carryback year,
               the prior years' allocation of such consolidated tax effects is
               adjusted in a subsequent year to the extent necessary to allocate
               the tax benefits to the group that would have realized the tax
               benefits on a separate return basis. As a result, the allocated
               group amounts of taxes payable or refundable are not necessarily
               comparable to those that would have resulted if the groups had
               filed separate tax returns.

- -------------------------------------------------------------------------------
5. Extraordinary Losses

               In 1999, USX irrevocably deposited with a trustee the entire 5.5
               million common shares it owned in RTI International Metals, Inc.
               (RTI). The deposit of the shares resulted in the satisfaction of
               USX's obligation under its 6 3/4/% Exchangeable Notes (indexed
               debt) due February 1, 2000. Under the terms of the indenture, the
               trustee exchanged one RTI share for each note at maturity. All
               shares were required for satisfaction of the indexed debt;
               therefore, none reverted back to USX.
                    As a result of the above transaction, USX recorded in 1999
               an extraordinary loss of $5 million, net of a $3 million income
               tax benefit, representing prepaid interest expense and the write-
               off of unamortized debt issue costs, and a pretax charge of $22
               million, representing the difference between the carrying value
               of the investment in RTI and the carrying value of the indexed
               debt, which is included in net gains on disposal of assets.
                    In December 1996, USX had issued $117 million of notes
               indexed to the common share price of RTI. At maturity, USX would
               have been required to exchange the notes for shares of RTI common
               stock, or redeem the notes for the equivalent amount of cash.
               Since USX's investment in RTI was attributed to the U. S. Steel
               Group, the indexed debt was also attributed to the U. S. Steel
               Group. USX had a 26% investment in RTI and accounted for its
               investment using the equity method of accounting.
                    Republic Technologies International, LLC, an equity method
               affiliate of USX, recorded in 1999 an extraordinary loss related
               to the early extinguishment of debt. As a result, the U. S. Steel
               Group recorded an extraordinary loss of $2 million, net of a $1
               million income tax benefit, representing its share of the
               extraordinary loss.

- --------------------------------------------------------------------------------
6. Net Interest and Other Financial Costs



               (In millions)                                               1999       1998       1997
               ----------------------------------------------------------------------------------------
                                                                                        

               Interest and other financial income/(a)/-
                 Interest income                                            $   1      $   5      $   4
                                                                            -----      -----      -----
               Interest and other financial costs/(a)/:
                 Interest incurred                                             45         40         57
                 Less interest capitalized                                      6          6          7
                                                                            -----      -----      -----
                   Net interest                                                39         34         50
               Interest on tax issues                                          15         16         13
               Financial costs on trust preferred securities                   13         13         10
               Financial costs on preferred stock of subsidiary                 5          5          5
               Amortization of discounts                                        1          2          2
               Expenses on sales of accounts receivable                        15         21         21
               Adjustment to settlement value of indexed debt                 (13)       (44)       (10)
                                                                            -----      -----      -----
                    Total                                                      75         47         91
                                                                            -----      -----      -----
               Net interest and other financial costs/(a)/                  $  74      $  42      $  87
               ----------------------------------------------------------------------------------------

               /(a)/ See Note 4, for discussion of USX net interest and other
               financial costs attributable to the U. S. Steel Group.

S-8


- --------------------------------------------------------------------------------
7. Segment Information

                    The U. S. Steel Group consists of one operating segment, U.
                    S. Steel. U. S. Steel is engaged in the production and sale
                    of steel mill products, coke and taconite pellets. U. S.
                    Steel also engages in the following related business
                    activities: the management of mineral resources, domestic
                    coal mining, engineering and consulting services, and real
                    estate development and management.
                         Segment income represents income from operations
                    allocable to U. S. Steel and does not include net interest
                    and other financial costs and provisions for estimated
                    income taxes. Additionally, the following items are not
                    allocated to operating segments:

                         .  Pension credits associated with pension plan assets
                            and liabilities allocated to pre-1987 retirees and
                            former businesses

                         .  Certain costs related to former U. S. Steel Group
                            business activities

                         .  USX corporate general and administrative costs.
                            These costs primarily consist of employment costs
                            including pension effects, professional services,
                            facilities and other related costs associated with
                            corporate activities.

                         .  Certain other items not allocated to operating
                            segments for business performance reporting purposes
                            (see reconcilement schedule below)

                    The following table represents the operations of U. S.
             Steel:



          (In millions)                                                    1999       1998       1997
          --------------------------------------------------------------------------------------------
                                                                                       
           Revenues:
           Customer                                                      $5,363      $6,180     $6,812
           Intergroup/(a)/                                                   17           2          2
           Equity in earnings (losses) of unconsolidated affiliates         (43)         46         69
           Other                                                             46          55         58
                                                                         ------      ------     ------
                Total revenues                                           $5,383      $6,283     $6,941
                                                                         ======      ======     ======
          Segment income (loss)                                          $ (128)     $  330     $  618
          Significant noncash items included in segment income:
           Depreciation, depletion and amortization                         304         283        303
           Pension expenses/(b)/                                            219         187        169
          Capital expenditures/(c)/                                         286         305        256
          Affiliates - investments/(c)/                                      15          71         26

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

          /(a)/ Intergroup sales and transfers were conducted under terms
                comparable to those with unrelated parties.
          /(b)/ Differences between segment total and group total represent
                unallocated pension credits and amounts included in
                administrative expenses.
          /(c)/ Differences between segment total and group total represent
                amounts related to corporate administrative activities.

                 The following schedule reconciles segment revenues and income
          to amounts reported in the U. S. Steel Group's financial statements:



          (In millions)                                                    1999       1998       1997
          --------------------------------------------------------------------------------------------
                                                                                       
          Revenues:
            Revenues of reportable segment                               $5,383      $6,283     $6,941
            Items not allocated to segment:
             Impairment and other costs related to an
              investment in an equity affiliate                             (47)          -          -
             Loss on investment in RTI stock used
              to satisfy indexed debt obligations                           (22)          -          -
                                                                         ------      ------     ------
                Total Group revenues                                     $5,314      $6,283     $6,941
                                                                         ======      ======     ======
          Income:
           Income (loss) for reportable segment                          $ (128)     $  330     $  618
           Items not allocated to segment:
            Impairment and other costs related to an
             investment in an equity affiliate                              (47)          -          -
            Loss on investment in RTI stock used
             to satisfy indexed debt obligations                            (22)          -          -
            Administrative expenses                                         (17)        (24)       (33)
            Pension credits                                                 447         373        313
            Costs related to former businesses activities                   (83)       (100)      (125)
                                                                         ------      ------     ------
                Total Group income from operations                       $  150      $  579     $  773
          --------------------------------------------------------------------------------------------


                                                                             S-9


Geographic Area:
     The information below summarizes the operations in different geographic
areas.



                                               Revenues
                                  -------------------------------
                                    Within     Between
                                  Geographic  Geographic
(In millions)             Year      Areas       Areas      Total    Assets/(a)/
- --------------------------------------------------------------------------------
                                                     
United States             1999      $5,296      $ -      $ $5,296       $2,889
                          1998       6,266        -         6,266        3,043
                          1997       6,926        -         6,926        3,023

Foreign Countries         1999          18        -            18           63
                          1998          17        -            17           69
                          1997          15        -            15            1

   Total                  1999      $5,314      $ -        $5,314       $2,952
                          1998       6,283        -         6,283        3,112
                          1997       6,941        -         6,941        3,024
- --------------------------------------------------------------------------------

/(a)/  Includes property, plant and equipment and investments in affiliates.


Sales by Product:

(In millions)                                      1999       1998       1997
- --------------------------------------------------------------------------------
Sheet and semi-finished steel products            $3,345     $3,501     $3,820
Tubular, plate and tin mill products               1,118      1,513      1,754
Raw materials (coal, coke and iron ore)              505        679        724
Other/(a)/                                           414        490        517
- --------------------------------------------------------------------------------
/(a)/ Includes revenue from the sale of steel production by-products,
      engineering and consulting services, real estate development and resource
      management.

- --------------------------------------------------------------------------------
8. Supplemental Cash Flow Information



             (In millions)                                                          1999          1998          1997
             -----------------------------------------------------------------------------------------------------------
                                                                                                     
             Cash used in operating activities included:
              Interest and other financial costs paid
               (net of amount capitalized)                                         $   (77)     $    (76)     $    (99)
              Income taxes (paid) refunded, including
               settlements with other groups                                             3           (29)          (48)
             -----------------------------------------------------------------------------------------------------------
             USX debt attributed to all groups - net:
              Commercial paper:
               Issued                                                              $ 6,282      $      -      $      -
               Repayments                                                           (6,117)            -             -
              Credit agreements:
               Borrowings                                                            5,529        17,486        10,454
               Repayments                                                           (5,980)      (16,817)      (10,449)
              Other credit arrangements - net                                          (95)           55            36
              Other debt:
               Borrowings                                                              319           671            10
               Repayments                                                              (87)       (1,053)         (741)
                                                                                   -------      --------      --------
                 Total                                                             $  (149)     $    342      $   (690)
              -----------------------------------------------------------------------------------------------------------
              U. S. Steel Group activity                                           $   147      $     13      $   (561)
              Marathon Group activity                                                 (296)          329            97
              Delhi Group activity                                                       -             -          (226)
                                                                                   -------      --------      --------
                 Total                                                             $  (149)     $    342      $   (690)
             -----------------------------------------------------------------------------------------------------------
             Noncash investing and financing activities:
              Steel Stock issued for dividend reinvestment and
               employee stock plans                                                $     2      $      2      $      5
              Trust preferred securities exchanged for preferred stock                   -             -           182
              Disposal of assets:
               Deposit of RTI common shares in satisfaction of indexed debt             56             -             -
               Interest in USS/Kobe contributed to Republic                             40             -             -
               Other disposals of assets - notes or common stock received                1             2             -
              Business combinations:
               Liabilities assumed                                                      26             -             -
               Affiliate liabilities consolidated in step acquisition                   26             -             -
             -----------------------------------------------------------------------------------------------------------


S-10


- --------------------------------------------------------------------------------
9.   Financial Activities Attributed to Groups

             The following is the portion of USX financial activities attributed
             to the U. S. Steel Group. These amounts exclude amounts
             specifically attributed to the U. S. Steel Group.



                                                                               U. S. Steel Group      Consolidated USX/(a)/
                                                                              --------------------    ----------------------
             (In millions)                                  December 31        1999         1998       1999         1998
             ---------------------------------------------------------------------------------------------------------------
                                                                                                     
             Cash and cash equivalents                                        $   1         $   -      $    9       $    4
             Other noncurrent assets                                              1             1           8            8
                                                                              -----         -----       -----       ------
               Total assets                                                   $   2         $   1      $   17       $   12
             -------------------------------------------------------------------------------------------------------------
             Notes payable                                                    $   -         $  13      $    -       $  145
             Accrued interest                                                    13             8          95           88
             Long-term debt due within one year (Note 10)                         7             7          54           66
             Long-term debt (Note 10)                                           466           306       3,771        3,762
             Preferred stock of subsidiary                                       66            66         250          250
                                                                              -----         -----      ------       ------
               Total liabilities                                              $ 552         $ 400      $4,170       $4,311
             -------------------------------------------------------------------------------------------------------------




             ----------------------------------------------------------------------------------------------------------------
                                                                      U. S. Steel Group/(b)/            Consolidated USX
                                                                    -------------------------     ---------------------------
             (In millions)                                          1999       1998     1997       1999     1998      1997
             ----------------------------------------------------------------------------------------------------------------
                                                                                                   
             Net interest and other financial costs (Note 6)        $  39      $  29    $  46     $ 334     $ 324    $  309
             ----------------------------------------------------------------------------------------------------------------

             /(a)/  For details of USX long-term debt and preferred stock of
                    subsidiary, see Notes 16 and 23, respectively, to the USX
                    consolidated financial statements.
             /(b)/  The U. S. Steel Group's net interest and other financial
                    costs reflect weighted average effects of all financial
                    activities attributed to all groups.

- --------------------------------------------------------------------------------
10.  Long-Term Debt

             The U. S. Steel Group's portion of USX's consolidated long-term
             debt is as follows:



                                                                                 U. S. Steel Group    Consolidated USX/(a)/
                                                                                 -----------------    --------------------
             (In millions)                                    December 31        1999        1998         1999       1998
             -------------------------------------------------------------------------------------------------------------
                                                                                                      
             Specifically attributed debt/(b)/:
              Receivables facility                                               $ 350       $   -       $  350      $   -
              Sale-leaseback financing and capital leases                           92          95          107         95
              Indexed debt less unamortized discount                                 -          68            -         68
              Other                                                                  -           -            1          -
                                                                                 -----       -----       ------     ------
               Total                                                               442         163          458        163
              Less amount due within one year                                        6           5            7          5
                                                                                 -----       -----       ------     ------
               Total specifically attributed long-term debt                      $ 436       $ 158       $  451     $  158
             -------------------------------------------------------------------------------------------------------------
             Debt attributed to groups/(c)/                                      $ 477       $ 316       $3,852     $3,853
              Less unamortized discount                                              4           3           27         25
              Less amount due within one year                                        7           7           54         66
                                                                                 -----       -----       ------     ------
               Total long-term debt attributed to groups                         $ 466       $ 306       $3,771     $3,762
             -------------------------------------------------------------------------------------------------------------
             Total long-term debt due within one year                            $  13       $  12       $   61     $   71
             Total long-term debt due after one year                               902         464        4,222      3,920
             -------------------------------------------------------------------------------------------------------------

             /(a)/  See Note 16, to the USX consolidated financial statements
                    for details of interest rates, maturities and other terms of
                    long-term debt.
             /(b)/  As described in Note 4, certain financial activities are
                    specifically attributed only to the U. S. Steel Group and
                    the Marathon Group.
             /(c)/  Most long-term debt activities of USX Corporation and its
                    wholly owned subsidiaries are attributed to all groups (in
                    total, but not with respect to specific debt issues) based
                    on their respective cash flows (Notes 4, 8 and 9).

                                                                            S-11


- --------------------------------------------------------------------------------
11.  Pensions and Other Postretirement Benefits

             The U. S. Steel Group has noncontributory defined benefit pension
             plans covering substantially all employees. Benefits under these
             plans are based upon years of service and final average pensionable
             earnings, or a minimum benefit based upon years of service,
             whichever is greater. In addition, pension benefits are also
             provided to most salaried employees based upon a percent of total
             career pensionable earnings. Certain of these plans provide
             benefits to USX corporate employees, and the related costs or
             credits for such employees are allocated to all groups (Note 4).
             The U. S. Steel Group also participates in multiemployer plans,
             most of which are defined benefit plans associated with coal
             operations.

                 The U. S. Steel Group also has defined benefit retiree health
             and life insurance plans (other benefits) covering most employees
             upon their retirement. Health benefits are provided through
             comprehensive hospital, surgical and major medical benefit
             provisions or through health maintenance organizations, both
             subject to various cost sharing features. Life insurance benefits
             are provided to nonunion retiree beneficiaries primarily based on
             employees' annual base salary at retirement. These plans provide
             benefits to USX corporate employees, and the related costs for such
             employees are allocated to all groups (Note 4). For union retirees,
             benefits are provided for the most part based on fixed amounts
             negotiated in labor contracts with the appropriate unions. Except
             for certain life insurance benefits paid from reserves held by
             insurance carriers and benefits required to be funded by union
             contracts, most other benefits have not been prefunded.



                                                                           Pension Benefits                  Other Benefits
                                                                        ---------------------            ----------------------
             (In millions)                                                1999           1998              1999        1998
             ------------------------------------------------------------------------------------------------------------------
                                                                                                         
             Change in benefit obligations
             Benefit obligations at January 1                           $  7,549       $  7,314          $ 2,113     $  2,070
             Service cost                                                     87             71               15           15
             Interest cost                                                   473            487              133          141
             Plan amendments                                                 381 /(a)/        8               14            -
             Actuarial (gains) losses                                       (822)           516             (225)          23
             Plan merger and acquisition                                      42              -                7            -
             Settlements, curtailments and termination benefits             (207)            10                -            7
             Benefits paid                                                  (787)          (857)            (161)        (143)
                                                                        --------       --------          -------     --------
             Benefit obligations at December 31                         $  6,716       $  7,549          $ 1,896     $  2,113
             ------------------------------------------------------------------------------------------------------------------
             Change in plan assets
             Fair value of plan assets at January 1                     $ 10,243       $  9,775          $   265     $    258
             Actual return on plan assets                                    729          1,308               20           31
             Acquisition                                                      26              -                1            -
             Employer contributions                                            -              -               34            -
             Trustee distributions/(b)/                                      (14)             -                -            -
             Settlements paid                                               (207)             -                -            -
             Benefits paid from plan assets                                 (782)          (840)             (39)         (24)
                                                                        --------       --------          -------     --------
             Fair value of plan assets at December 31                   $  9,995       $ 10,243          $   281     $    265
             ------------------------------------------------------------------------------------------------------------------
             Funded status of plans at December 31                      $  3,279 /(c)/ $  2,694  /(c)/   $(1,615)    $ (1,848)
             Unrecognized net gain from transition                           (69)          (140)               -            -
             Unrecognized prior service cost                                 817            518                19           7
             Unrecognized actuarial gains                                 (1,639)          (905)             (526)       (292)
             Additional minimum liability/(d)/                               (16)           (57)                -           -
                                                                        --------       --------          -------     --------
             Prepaid (accrued) benefit cost                             $  2,372       $  2,110          $ (2,122)   $ (2,133)
             ------------------------------------------------------------------------------------------------------------------
             /(a)/  Results primarily from a new five-year labor contract with
                    the United Steelworkers of America ratified in August 1999.
             /(b)/  Represents transfers of excess pension assets to fund
                    retiree health care benefits accounts under Section 420 of
                    the Internal Revenue Code.
             /(c)/  Includes several plans that have accumulated benefit
                    obligations in excess of plan assets:
                       Aggregate accumulated benefit obligations        $    (29)      $    (62)
                       Aggregate projected benefit obligations               (39)           (68)
                       Aggregate plan assets                                   -              -
             /(d)/  Additional minimum liability recorded was offset
                    by the following:
                       Intangible asset                                 $      6       $     16
                                                                        --------       --------
                        Accumulated other comprehensive income
                        (losses):
                          Beginning of year                             $    (27)      $    (25)
                          Change during year (net of tax)                     20             (2)
                                                                        --------       --------
                          Balance at end of year                        $     (7)      $    (27)

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


S-12




                                                                  Pension Benefits                      Other Benefits
                                                         -----------------------------------   -----------------------------------
               (In millions)                                1999          1998        1997       1999          1998        1997
               -------------------------------------------------------------------------------------------------------------------
                                                                                                       
               Components of net periodic
                 benefit cost (credit)
               Service cost                                $  87         $  71      $  65      $   15       $   15       $  15
               Interest cost                                 473           487        517         133          141         153
               Expected return on plan assets               (781)         (769)      (743)        (21)         (21)        (11)
               Amortization  -  net transition gain          (67)          (69)       (69)          -            -           -
                             -  prior service costs           83            72         72           4            4           4
                             -  actuarial (gains) losses       6             6          3         (12)         (16)        (13)
             Multiemployer and other plans                     -             1          2           7/(a)/      13/(a)/     15/(a)/
             Settlement and termination (gains) losses       (35)/(b)/      10/(b)/     4           -            -           -
                                                           -----         -----      -----      ------       ------       -----
             Net periodic benefit cost (credit)            $(234)        $(191)     $(149)     $  126       $  136       $ 163
             --------------------------------------------------------------------------------------------------------------------

             /(a)/ Represents payments to a multiemployer health care benefit
                   plan created by the Coal Industry Retiree Health Benefit Act
                   of 1992 based on assigned beneficiaries receiving benefits.
                   The present value of this unrecognized obligation is broadly
                   estimated to be $90 million, including the effects of future
                   medical inflation, and this amount could increase if
                   additional beneficiaries are assigned.
             /(b)/ Relates primarily to the 1998 voluntary early retirement
                   program.



                                                                                 Pension Benefits           Other Benefits
                                                                              ----------------------     --------------------
               (In millions)                                                    1999          1998         1999         1998
               --------------------------------------------------------------------------------------------------------------
                                                                                                            
               Weighted average actuarial assumptions
                at December 31:
               Discount rate                                                    8.0%          6.5%          8.0%         6.5%
               Expected annual return on plan assets                            8.5%          9.0%          8.5%         9.0%
               Increase in compensation rate                                    4.0%          4.0%          4.0%         4.0%
               --------------------------------------------------------------------------------------------------------------


                    For measurement purposes, a 7.5% annual rate of increase in
               the per capita cost of covered health care benefits was assumed
               for 2000. The rate was assumed to decrease gradually to 5% for
               2005 and remain at that level thereafter.

                    A one-percentage-point change in assumed health care cost
               trend rates would have the following effects:



                                                                                       1-Percentage-       1-Percentage-
               (In millions)                                                           Point Increase      Point Decrease
               --------------------------------------------------------------------------------------------------------------
                                                                                                     
               Effect on total of service and interest cost components                      $ 14                $ (12)
               Effect on other postretirement benefit obligations                            149                 (127)
               --------------------------------------------------------------------------------------------------------------


- --------------------------------------------------------------------------------
12. Intergroup Transactions

               Sales and purchases - U. S. Steel Group sales to the Marathon
               Group totaled $17 million in 1999 and $2 million in 1998. U. S.
               Steel Group purchases from the Marathon Group totaled $41
               million, $21 million and $29 million in 1999, 1998 and 1997,
               respectively. At December 31, 1999 and 1998, U. S. Steel Group
               accounts payable included $5 million and $3 million,
               respectively, related to transactions with the Marathon Group.
               These transactions were conducted under terms comparable to those
               with unrelated parties.

               Income taxes receivable from/payable to the Marathon Group - At
               December 31, 1999 and 1998, amounts receivable or payable for
               income taxes were included in the balance sheet as follows:



               (In millions)                                          December 31     1999       1998
               ---------------------------------------------------------------------------------------
                                                                                          
               Current:
                Income tax receivable                                                $  97      $   -
               Accounts payable                                                          1          2
                Noncurrent:
               Investments and long-term receivables                                    97         97
               ---------------------------------------------------------------------------------------


                    These amounts have been determined in accordance with the
               tax allocation policy described in Note 4. Amounts classified as
               current are settled in cash in the year succeeding that in which
               such amounts are accrued. Noncurrent amounts represent estimates
               of intergroup tax effects of certain issues for years that are
               still under various stages of audit and administrative review.
               Such tax effects are not settled between the groups until the
               audit of those respective tax years is closed. The amounts
               ultimately settled for open tax years will be different than
               recorded noncurrent amounts based on the final resolution of all
               of the audit issues for those years.

                                                                            S-13


- --------------------------------------------------------------------------------
13.  Inventories



               (In millions)                                   December 31        1999         1998
               ----------------------------------------------------------------------------------------
                                                                                         
               Raw materials                                                       $ 101        $ 185
               Semi-finished products                                                392          282
               Finished products                                                     193          182
               Supplies and sundry items                                              57           49
                                                                                   -----        -----
                    Total                                                          $ 743        $ 698
               ----------------------------------------------------------------------------------------


                    At December 31, 1999 and 1998, respectively, the LIFO method
               accounted for 93% and 94% of total inventory value. Current
               acquisition costs were estimated to exceed the above inventory
               values at December 31 by approximately $370 million and $310
               million in 1999 and 1998, respectively.

- --------------------------------------------------------------------------------
14.  Income Taxes

               Income tax provisions and related assets and liabilities
               attributed to the U. S. Steel Group are determined in accordance
               with the USX group tax allocation policy (Note 4).

                    Provisions (credits) for estimated income taxes were:



                                                  1999                            1998                               1997
                                     -----------------------------   ----------------------------     -----------------------------
               (In millions)          Current   Deferred    Total     Current   Deferred   Total       Current   Deferred   Total
               --------------------------------------------------------------------------------------------------------------------
                                                                                                 
               Federal                 $(84)     $  99       $15        $19      $ 149      $ 168        $  37      $ 168    $  205
               State and local            1          8         9          3          9         12            4         25        29
               Foreign                    1          -         1         (7)         -         (7)           -          -         -
                                       ----      -----       ---        ---      -----      -----        -----      -----     -----
                 Total                 $(82)     $ 107       $25        $15      $ 158      $ 173        $  41      $ 193     $ 234
               --------------------------------------------------------------------------------------------------------------------


                    A reconciliation of federal statutory tax rate (35%) to
               total provisions follows:



                              (In millions)                                                  1999       1998         1997
               ------------------------------------------------------------------------------------------------------------
                                                                                                           
               Statutory rate applied to income before income taxes                          $  27      $  188      $  240
               Excess percentage depletion                                                      (7)        (11)        (10)
               Effects of foreign operations, including foreign tax
                credits                                                                         (2)        (11)         (3)
               State and local income taxes after federal income tax effects                     6           8          19
               Credits other than foreign tax credits                                           (3)         (3)        (15)
               Effects of partially owned companies                                              -           -          (3)
               Adjustment of prior years' federal income taxes                                   -           -           6
               Adjustment of valuation allowances                                                -           -          (1)
               Other                                                                             4           2           1
                                                                                             -----      ------      ------
                  Total provisions                                                           $  25      $  173      $  234
               ------------------------------------------------------------------------------------------------------------


                    Deferred tax assets and liabilities resulted from the
following:




               (In millions)                                                         December 31       1999        1998
               -----------------------------------------------------------------------------------------------------------
                                                                                                            
               Deferred tax assets:
                Minimum tax credit carryforwards                                                      $  131      $   185
                State tax loss carryforwards (expiring in 2000 through 2019)                              65           64
                Employee benefits                                                                        998          969
                Receivables, payables and debt                                                            68           52
                Contingency and other accruals                                                            52           48
                Other                                                                                     11           12
                Valuation allowances - state                                                             (41)         (44)
                                                                                                      ------      -------
                  Total deferred tax assets/(a)/                                                       1,284        1,286
                                                                                                      ------      -------
               Deferred tax liabilities:
                Property, plant and equipment                                                            274          272
                Prepaid pensions                                                                         921          792
                Inventory                                                                                 16           16
                Investments in subsidiaries and affiliates                                                96          116
                Federal effect of state deferred tax assets                                                -            3
                Other                                                                                     44           40
                                                                                                      ------      -------
                  Total deferred tax liabilities                                                       1,351        1,239
                                                                                                      ------      -------
                   Net deferred tax assets (liabilities)                                              $  (67)     $    47
               -----------------------------------------------------------------------------------------------------------


               /(a)/ USX expects to generate sufficient future taxable income to
                     realize the benefit of the U. S. Steel Group's deferred tax
                     assets.

                    The consolidated tax returns of USX for the years 1990
               through 1997 are under various stages of audit and administrative
               review by the IRS. USX believes it has made adequate provision
               for income taxes and interest which may become payable for years
               not yet settled.

S-14


- --------------------------------------------------------------------------------
15.  Investments and Long-Term Receivables



               (In millions)                                                          December 31      1999         1998
               -----------------------------------------------------------------------------------------------------------
                                                                                                             
               Equity method investments                                                               $  397       $  564
               Other investments                                                                           39           48
               Receivables due after one year                                                              11           10
               Income taxes receivable                                                                     97           97
               Deposits of restricted cash                                                                  2            -
               Other                                                                                       26           24
                                                                                                       ------       ------
                 Total                                                                                 $  572       $  743
               -----------------------------------------------------------------------------------------------------------


                    Summarized financial information of affiliates accounted for
               by the equity method of accounting follows:



               (In millions)                                                              1999          1998         1997
               ----------------------------------------------------------------------------------------------------------
                                                                                                          
               Income data - year:
                Revenues                                                                $3,027        $3,163       $3,143
                Operating income (loss)                                                    (57)          193          228
                Net income (loss)                                                         (193)           97          139
               ----------------------------------------------------------------------------------------------------------
               Balance sheet data - December 31:
                Current assets                                                          $  995        $1,028
                Noncurrent assets                                                        2,402         2,149
                Current liabilities                                                      1,181           631
                Noncurrent liabilities                                                   1,251           883
               ----------------------------------------------------------------------------------------------------------


                    In 1999, USX and Kobe Steel, Ltd. (Kobe Steel) completed a
               transaction that combined the steelmaking and bar producing
               assets of USS/Kobe Steel Company (USS/Kobe) with companies
               controlled by Blackstone Capital Partners II. The combined entity
               was named Republic Technologies International, LLC (Republic). In
               addition, USX made a $15 million equity investment in Republic.
               USX owned 50% of USS/Kobe and now owns 16% of Republic. USX
               accounts for its investment in Republic under the equity method
               of accounting. Income (loss) from affiliates in 1999 includes $47
               million in charges related to the impairment of the carrying
               value of USX's investment in USS/Kobe and costs related to the
               formation of Republic. The seamless pipe business of USS/Kobe was
               excluded from this transaction. That business, now known as
               Lorain Tubular Company, LLC, became a wholly owned subsidiary of
               USX at the close of business on December 31, 1999.

                    Dividends and partnership distributions received from equity
               affiliates were $2 million in 1999, $19 million in 1998 and $13
               million in 1997.

                    U. S. Steel Group purchases of transportation services and
               semi-finished steel from equity affiliates totaled $361 million,
               $331 million and $424 million in 1999, 1998 and 1997,
               respectively. At December 31, 1999 and 1998, U. S. Steel Group
               payables to these affiliates totaled $22 million and $15 million,
               respectively. U. S. Steel Group sales of steel and raw materials
               to equity affiliates totaled $831 million, $725 million and $802
               million in 1999, 1998 and 1997, respectively. At December 31,
               1999 and 1998, U. S. Steel Group receivables from these
               affiliates were $177 million. Generally, these transactions were
               conducted under long-term, market-based contractual arrangements.

- --------------------------------------------------------------------------------
16.  Leases

               Future minimum commitments for capital leases (including sale-
               leasebacks accounted for as financings) and for operating leases
               having remaining noncancelable lease terms in excess of one year
               are as follows:



                                                                        Capital         Operating
               (In millions)                                            Leases           Leases
               ----------------------------------------------------------------------------------
                                                                                    

               2000                                                          $ 11            $104
               2001                                                            11             122
               2002                                                            11              51
               2003                                                            11              36
               2004                                                            11              32
               Later years                                                    105              80
               Sublease rentals                                                 -             (69)
                                                                             ----            ----
                   Total minimum lease payments                               160            $356
                                                                             ----            ====
               Less imputed interest costs                                    (68)
                                                                             ----
                   Present value of net minimum lease payments
                    included in long-term debt                               $ 92
               ----------------------------------------------------------------------------------


                                                                            S-15




              Operating lease rental expense:
          (In millions)                    1999          1998          1997
          --------------------------------------------------------------------
                                                             
          Minimum rental                  $ 124         $ 131         $ 130
          Contingent rental                  18            19            15
          Sublease rentals                   (6)           (7)           (7)
                                          -----         -----         -----
              Net rental expense          $ 136         $ 143         $ 138
          --------------------------------------------------------------------


               The U. S. Steel Group leases a wide variety of facilities and
          equipment under operating leases, including land and building space,
          office equipment, production facilities and transportation equipment.
          Most long-term leases include renewal options and, in certain leases,
          purchase options. In the event of a change in control of USX, as
          defined in the agreements, or certain other circumstances, lease
          obligations totaling $1 million may be declared immediately due and
          payable.
- -------------------------------------------------------------------------------
17.  Property, Plant and Equipment



          (In millions)                                            December 31           1999          1998
          --------------------------------------------------------------------------------------------------
                                                                                               
          Land and depletable property                                                   $  152       $  151
          Buildings                                                                         484          469
          Machinery and equipment                                                         8,007        7,711
          Leased assets                                                                     105          108
                                                                                         ------  -----------
              Total                                                                       8,748        8,439
          Less accumulated depreciation, depletion and amortization                       6,232        5,939
                                                                                         ------  -----------
              Net                                                                        $2,516       $2,500
          --------------------------------------------------------------------------------------------------


               Amounts in accumulated depreciation, depletion and amortization
          for assets acquired under capital leases (including sale-leasebacks
          accounted for as financings) were $81 million and $77 million at
          December 31, 1999 and 1998, respectively.
- -------------------------------------------------------------------------------
18.  Trust Preferred Securities

          In 1997, USX exchanged approximately 3.9 million 6.75% Convertible
          Quarterly Income Preferred Securities (Trust Preferred Securities) of
          USX Capital Trust I, a Delaware statutory business trust (Trust), for
          an equivalent number of shares of its 6.50% Cumulative Convertible
          Preferred Stock (6.50% Preferred Stock) (Exchange). The Exchange
          resulted in the recording of Trust Preferred Securities at a fair
          value of $182 million and a noncash credit to Retained Earnings of $10
          million.

               USX owns all of the common securities of the Trust, which was
          formed for the purpose of the Exchange. (The Trust Common Securities
          and the Trust Preferred Securities are together referred to as the
          Trust Securities.) The Trust Securities represent undivided beneficial
          ownership interests in the assets of the Trust, which consist solely
          of USX 6.75% Convertible Junior Subordinated Debentures maturing March
          31, 2037 (Debentures), having an aggregate principal amount equal to
          the aggregate initial liquidation amount ($50.00 per security and $203
          million in total) of the Trust Securities issued by the Trust.
          Interest and principal payments on the Debentures will be used to make
          quarterly distributions and to pay redemption and liquidation amounts
          on the Trust Preferred Securities. The quarterly distributions, which
          accumulate at the rate of 6.75% per annum on the Trust Preferred
          Securities and the accretion from fair value to the initial
          liquidation amount, are charged to income and included in net interest
          and other financial costs.

               Under the terms of the Debentures, USX has the right to defer
          payment of interest for up to 20 consecutive quarters and, as a
          consequence, monthly distributions on the Trust Preferred Securities
          will be deferred during such period. If USX exercises this right,
          then, subject to limited exceptions, it may not pay any dividend or
          make any distribution with respect to any shares of its capital stock.


S-16


               The Trust Preferred Securities are convertible at any time prior
          to the close of business on March 31, 2037 (unless such right is
          terminated earlier under certain circumstances) at the option of the
          holder, into shares of Steel Stock at a conversion price of $46.25 per
          share of Steel Stock (equivalent to a conversion ratio of 1.081 shares
          of Steel Stock for each Trust Preferred Security), subject to
          adjustment in certain circumstances.

               The Trust Preferred Securities may be redeemed at any time at the
          option of USX, at a premium of 102.60% of the initial liquidation
          amount through March 31, 2000, and thereafter, declining annually to
          the initial liquidation amount on April 1, 2003, and thereafter. They
          are mandatorily redeemable at March 31, 2037, or earlier under certain
          circumstances.

               Payments related to quarterly distributions and to the payment of
          redemption and liquidation amounts on the Trust Preferred Securities
          by the Trust are guaranteed by USX on a subordinated basis. In
          addition, USX unconditionally guarantees the Trust's Debentures. The
          obligations of USX under the Debentures, and the related indenture,
          trust agreement and guarantee constitute a full and unconditional
          guarantee by USX of the Trust's obligations under the Trust Preferred
          Securities.

- --------------------------------------------------------------------------------
19.  Stockholders' Equity



          (In millions, except per share data)                             1999          1998          1997
          --------------------------------------------------------------------------------------------------
                                                                                             
          Preferred stock:
           Balance at beginning of year                                   $    3        $    3        $    7
           Exchanged for trust preferred securities                            -             -            (4)
                                                                          ------        ------        ------
           Balance at end of year                                         $    3        $    3        $    3
          --------------------------------------------------------------------------------------------------
          Common stockholders' equity:
           Balance at beginning of year                                   $2,090        $1,779        $1,559
           Net income                                                         44           364           452
           6.50% preferred stock:
            Repurchased                                                       (2)           (8)            -
            Exchanged for trust preferred securities (Note 18)                 -             -          (188)
           Steel Stock issued                                                  2            59            53
           Dividends on preferred stock                                       (9)           (9)          (13)
           Dividends on Steel Stock (per share $1.00)                        (88)          (88)          (86)
           Deferred compensation                                               1             -             -
           Accumulated other comprehensive income (loss)/(a)/:
            Foreign currency translation adjustments                          (5)           (5)            -
            Minimum pension liability adjustments (Note 11)                   20            (2)           (8)
           Other                                                               -             -            10
                                                                          ------        ------        ------
           Balance at end of year                                         $2,053        $2,090        $1,779
          --------------------------------------------------------------------------------------------------
          Total stockholders' equity                                      $2,056        $2,093        $1,782
          --------------------------------------------------------------------------------------------------


          /(a)/ See page U-7 of the USX consolidated financial statements
                relative to the annual activity of these adjustments. Total
                comprehensive income for the U. S. Steel Group for the years
                1999, 1998 and 1997 was $59 million, $357 million and $444
                million, respectively.

- --------------------------------------------------------------------------------
20.  Dividends

          In accordance with the USX Restated Certificate of Incorporation,
          dividends on the Steel Stock and Marathon Stock are limited to the
          legally available funds of USX. Net losses of either Group, as well as
          dividends and distributions on any class of USX Common Stock or series
          of preferred stock and repurchases of any class of USX Common Stock or
          series of preferred stock at prices in excess of par or stated value,
          will reduce the funds of USX legally available for payment of
          dividends on both classes of Common Stock. Subject to this limitation,
          the Board of Directors intends to declare and pay dividends on the
          Steel Stock based on the financial condition and results of operations
          of the U. S. Steel Group, although it has no obligation under Delaware
          law to do so. In making its dividend decisions with respect to Steel
          Stock, the Board of Directors considers, among other things, the long-
          term earnings and cash flow capabilities of the U. S. Steel Group as
          well as the dividend policies of similar publicly traded steel
          companies.

               Dividends on the Steel Stock are further limited to the Available
          Steel Dividend Amount. At December 31, 1999, the Available Steel
          Dividend Amount was at least $3,300 million. The Available Steel
          Dividend Amount will be increased or decreased, as appropriate, to
          reflect U. S. Steel Group net income, dividends, repurchases or
          issuances with respect to the Steel Stock and preferred stock
          attributed to the U. S. Steel Group and certain other items.

                                                                            S-17


- --------------------------------------------------------------------------------
21.  Income Per Common Share

               The method of calculating net income per share for the Steel
               Stock, the Marathon Stock and, prior to November 1, 1997, the
               Delhi Stock reflects the USX Board of Directors' intent that the
               separately reported earnings and surplus of the U. S. Steel
               Group, the Marathon Group and the Delhi Group, as determined
               consistent with the USX Restated Certificate of Incorporation,
               are available for payment of dividends to the respective classes
               of stock, although legally available funds and liquidation
               preferences of these classes of stock do not necessarily
               correspond with these amounts.

                    Basic net income per share is calculated by adjusting net
               income for dividend requirements of preferred stock and, in 1997,
               the noncash credit on exchange of preferred stock and is based on
               the weighted average number of common shares outstanding.

                    Diluted net income per share assumes conversion of
               convertible securities for the applicable periods outstanding and
               assumes exercise of stock options, provided in each case, the
               effect is not antidilutive.



                                                                        1999                1998               1997
                                                                 ------------------  -----------------  -----------------
                                                                  Basic    Diluted    Basic    Diluted   Basic    Diluted
                                                                 --------  --------  --------  -------  --------  -------
                                                                                                
          Computation of Income Per Share
          -------------------------------
          Net income (millions):
           Income before extraordinary losses                    $    51   $    51   $   364   $   364  $   452   $   452
           Dividends on preferred stock                               (9)       (9)       (9)        -      (13)        -
           Noncash credit from exchange of preferred stock             -         -         -         -       10         -
           Extraordinary losses                                       (7)       (7)        -         -        -         -
                                                                 -------   -------   -------   -------  -------   -------
           Net income applicable to Steel Stock                       35        35       355       364      449       452
           Effect of dilutive securities:
            Trust preferred securities                                 -         -         -         8        -         6
            Convertible debentures                                     -         -         -         -        -         2
                                                                 -------   -------   -------   -------  -------   -------
              Net income assuming conversions                    $    35   $    35   $   355   $   372  $   449   $   460
                                                                 =======   =======   =======   =======  =======   =======
          Shares of common stock outstanding (thousands):
           Average number of common shares outstanding            88,392    88,392    87,508    87,508   85,672    85,672
           Effect of dilutive securities:
            Trust preferred securities                                 -         -         -     4,256        -     2,660
            Preferred stock                                            -         -         -     3,143        -     4,811
            Convertible debentures                                     -         -         -         -        -     1,025
            Stock options                                              -         4         -        36        -        35
                                                                 -------   -------   -------   -------  -------   -------
              Average common shares and dilutive effect           88,392    88,396    87,508    94,943   85,672    94,203
                                                                 =======   =======   =======   =======  =======   =======
          Per share:
           Income before extraordinary losses                    $   .48   $   .48   $  4.05   $  3.92  $  5.24   $  4.88
           Extraordinary losses                                      .08       .08         -         -        -         -
                                                                 -------   -------   -------   -------  -------   -------
           Net income                                            $   .40   $   .40   $  4.05   $  3.92  $  5.24   $  4.88
                                                                 =======   =======   =======   =======  =======   =======


- --------------------------------------------------------------------------------
22.  Stock-Based Compensation Plans and Stockholder Rights Plan

               USX Stock-Based Compensation Plans and Stockholder Rights
               Plan are discussed in Note 19, and Note 21, respectively, to the
               USX consolidated financial statements.

                    The U. S. Steel Group's actual stock-based compensation
               expense was $1 million in 1999, none in 1998 and $8 million in
               1997. Incremental compensation expense, as determined under a
               fair value model, was not material ($.02 or less per share for
               all years presented). Therefore, pro forma net income and
               earnings per share data have been omitted.

S-18


- --------------------------------------------------------------------------------
23.  Derivative Instruments

          The U. S. Steel Group remains at risk for possible changes in the
          market value of the derivative instrument; however, such risk should
          be mitigated by price changes in the underlying hedged item. The U. S.
          Steel Group is also exposed to credit risk in the event of
          nonperformance by counterparties. The credit worthiness of
          counterparties is subject to continuing review, including the use of
          master netting agreements to the extent practical, and full
          performance is anticipated.

               The following table sets forth quantitative information by class
          of derivative instrument:



                                                                      Fair            Carrying     Recorded
                                                                      Value            Amount      Deferred     Aggregate
                                                                     Assets            Assets       Gain or     Contract
          (In millions)                                        (Liabilities)/(a)/   (Liabilities)   (Loss)    Values /(b)/
          ----------------------------------------------------------------------------------------------------------------
                                                                                                  
          December 31, 1999:
           OTC commodity swaps - other than trading/(c)/             $ 3                $ 3          $ 3       $    37
          ----------------------------------------------------------------------------------------------------------------
          December 31, 1998:
           OTC commodity swaps - other than trading                  $(7)               $(7)         $(7)      $    54
          ----------------------------------------------------------------------------------------------------------------

          /(a)/  The fair value amounts are based on exchange-traded index
                 prices and dealer quotes.
          /(b)/  Contract or notional amounts do not quantify risk exposure,
                 but are used in the calculation of cash settlements under the
                 contracts.
          /(c)/  The OTC swap arrangements vary in duration with certain
                 contracts extending into 2000.

- --------------------------------------------------------------------------------
24.  Fair Value of Financial Instruments

          Fair value of the financial instruments disclosed herein is not
          necessarily representative of the amount that could be realized or
          settled, nor does the fair value amount consider the tax consequences
          of realization or settlement. The following table summarizes financial
          instruments, excluding derivative financial instruments disclosed in
          Note 23, by individual balance sheet account. As described in Note 4,
          the U. S. Steel Group's specifically attributed financial instruments
          and the U. S. Steel Group's portion of USX's financial instruments
          attributed to all groups are as follows:



                                                                                                1999             1998
                                                                                         ----------------- -----------------
                                                                                          Fair   Carrying   Fair   Carrying
          (In millions)                             December 31                           Value    Amount   Value    Amount
          ------------------------------------------------------------------------------------------------------------------
                                                                                                       
          Financial assets:
           Cash and cash equivalents                                                      $   22    $   22  $    9    $    9
           Receivables (including intergroup receivables)                                    935       935     392       392
           Investments and long-term receivables                                             122       122     120       120
                                                                                          ------    ------  ------  --------
               Total financial assets                                                     $1,079    $1,079  $  521    $  521
          ------------------------------------------------------------------------------------------------------------------
          Financial liabilities:
           Notes payable                                                                  $    -    $    -  $   13    $   13
           Accounts payable                                                                  739       739     501       501
           Accrued interest                                                                   15        15      10        10
           Long-term debt (including amounts due within one year)                            835       823     406       381
           Preferred stock of subsidiary and trust
            preferred securities                                                             232       249     231       248
                                                                                          ------    ------  ------  --------
               Total financial liabilities                                                $1,821    $1,826  $1,161    $1,153
          ------------------------------------------------------------------------------------------------------------------


               Fair value of financial instruments classified as current assets
          or liabilities approximates carrying value due to the short-term
          maturity of the instruments. Fair value of investments and long-term
          receivables was based on discounted cash flows or other specific
          instrument analysis. Fair value of preferred stock of subsidiary and
          trust preferred securities was based on market prices. Fair value of
          long-term debt instruments was based on market prices where available
          or current borrowing rates available for financings with similar terms
          and maturities.

               The U. S. Steel Group's unrecognized financial instruments
          consist of receivables sold in 1998 and financial guarantees. It is
          not practicable to estimate the fair value of these forms of financial
          instrument obligations because there are no quoted market prices for
          transactions which are similar in nature. For details relating to
          financial guarantees, see Note 25.

                                                                            S-19


- --------------------------------------------------------------------------------
25.  Contingencies and Commitments

          USX is the subject of, or party to, a number of pending or threatened
          legal actions, contingencies and commitments relating to the U. S.
          Steel Group involving a variety of matters, including laws and
          regulations relating to the environment. Certain of these matters are
          discussed below. The ultimate resolution of these contingencies could,
          individually or in the aggregate, be material to the U. S. Steel Group
          financial statements. However, management believes that USX will
          remain a viable and competitive enterprise even though it is possible
          that these contingencies could be resolved unfavorably to the U. S.
          Steel Group.

          Environmental matters -

               The U. S. Steel Group is subject to federal, state, and local
          laws and regulations relating to the environment. These laws generally
          provide for control of pollutants released into the environment and
          require responsible parties to undertake remediation of hazardous
          waste disposal sites. Penalties may be imposed for noncompliance.
          Accrued liabilities for remediation totaled $101 million and $97
          million at December 31, 1999 and 1998, respectively. It is not
          presently possible to estimate the ultimate amount of all remediation
          costs that might be incurred or the penalties that may be imposed.

               For a number of years, the U. S. Steel Group has made substantial
          capital expenditures to bring existing facilities into compliance with
          various laws relating to the environment. In 1999 and 1998, such
          capital expenditures totaled $32 million and $49 million,
          respectively. The U. S. Steel Group anticipates making additional such
          expenditures in the future; however, the exact amounts and timing of
          such expenditures are uncertain because of the continuing evolution of
          specific regulatory requirements.

          Guarantees -

               Guarantees by USX of the liabilities of affiliated entities of
          the U. S. Steel Group totaled $88 million at December 31, 1999, and
          $81 million at December 31, 1998. In the event that any defaults of
          guaranteed liabilities occur, USX has access to its interest in the
          assets of the affiliates to reduce potential U. S. Steel Group losses
          resulting from these guarantees. As of December 31, 1999, the largest
          guarantee for a single affiliate was $61 million.

          Commitments -

               At December 31, 1999 and 1998, the U. S. Steel Group's contract
          commitments to acquire property, plant and equipment totaled $83
          million and $188 million, respectively.

               USX entered into a 15-year take-or-pay arrangement in 1993, which
          requires the U. S. Steel Group to accept pulverized coal each month or
          pay a minimum monthly charge of approximately $1 million. Charges for
          deliveries of pulverized coal totaled $23 million in both 1999 and
          1998. If USX elects to terminate the contract early, a maximum
          termination payment of $102 million, which declines over the duration
          of the agreement, may be required.

S-20


Selected Quarterly Financial Data (Unaudited)



                                                                                   1999
                                                       -------------------------------------------------------------
(In millions, except per share data)                    4th Qtr.          3rd Qtr.         2nd Qtr.      1st Qtr.
- --------------------------------------------------------------------------------------------------------------------
                                                                                            
Revenues                                                 $1,462       $  1,337  /(a)/   $1,304          $1,211
Income (loss)
 from operations                                             75            (26) /(a)/      103              (2)
Income (loss) before
 extraordinary losses                                        34            (29) /(a)/       55              (9)
Net income (loss)                                            34            (31)             55             (14)
- --------------------------------------------------------------------------------------------------------------------
Steel Stock data:
- ----------------
Income (loss) before
 extraordinary losses
 applicable to Steel Stock                               $   32       $    (31) /(a)/   $   52          $  (11)
 - Per share: basic                                         .35           (.35) /(a)/      .60            (.13)
              diluted                                       .35           (.35) /(a)/      .59            (.13)
Dividends paid per share                                    .25            .25             .25             .25
Price range of Steel Stock/(b)/:
 - Low                                                       21-/3/4/       24-/9/16/       23-/1/2/        22-/1/4/
 - High                                                      33             30-/1/16/       34-/1/4/        29-/1/8/
- --------------------------------------------------------------------------------------------------------------------


                                                                                   1998
                                                       -------------------------------------------------------------
(In millions, except per share data)                     4th Qtr.   3rd Qtr.              2nd Qtr.       1st Qtr.
- --------------------------------------------------------------------------------------------------------------------
                                                                                           
Revenues                                               $1,357       $1,497              $1,733         $1,696
Income (loss)
 from operations                                           95          105                 217            162
Income (loss) before
 extraordinary losses                                      76           65                 136             87
Net income (loss)                                          76           65                 136             87
- --------------------------------------------------------------------------------------------------------------------
Steel Stock data:
- ----------------
Income (loss) before
 extraordinary losses
 applicable to Steel Stock                             $   74       $   63              $  133         $   85
 - Per share: basic                                       .83          .72                1.53            .98
              diluted                                     .81          .71                1.46            .95
Dividends paid per share                                  .25          .25                 .25            .25
Price range of Steel Stock/(b)/:
 - Low                                                     21-/5/8/     20-/7/16/           31             28-/7/16/
 - High                                                    27-/3/4/     33-/1/2/            43-/1/16/      42-/1/8/
- --------------------------------------------------------------------------------------------------------------------

/(a)/ Restated to reflect current classifications.
/(b)/ Composite tape.

                                                                            S-21


Principal Unconsolidated Affiliates (Unaudited)



                                                              December 31, 1999
               Company                         Country            Ownership                Activity
- -----------------------------------------------------------------------------------------------------------
                                                                            
Clairton 1314B Partnership, L.P.            United States           10%              Coke & Coke By-Products
Double Eagle Steel Coating Company          United States           50%              Steel Processing
PRO-TEC Coating Company                     United States           50%              Steel Processing
Republic Technologies International, LLC    United States           16%              Steel Products
Transtar, Inc.                              United States           46%              Transportation
USS-POSCO Industries                        United States           50%              Steel Processing
VSZ U. S. Steel, s. r.o.                    Slovak Republic         50%              Tin Mill Products
Worthington Specialty Processing            United States           50%              Steel Processing
- -----------------------------------------------------------------------------------------------------------


Supplementary Information on Mineral Reserves (Unaudited)

See the USX consolidated financial statements for Supplementary Information on
Mineral Reserves relating to the U. S. Steel Group, page U-30.

S-22