USX CORP
8-K, 1999-01-22
PETROLEUM REFINING
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                                        
                             Washington, D.C.  20549
                                        
                                        
                             -----------------------
                                        
                                    FORM 8-K
                                        
                                 CURRENT REPORT
                                        
                       Pursuant to Section 13 or 15(d) of
                       The Securities Exchange Act of 1934
                                        
                             -----------------------
                                        
                Date of Report (Date of earliest event reported):
                                January 22, 1999
                                        
                                        
                                 USX Corporation
- --------------------------------------------------------------------------------
                                      ----
             (Exact name of registrant as specified in its charter)


           Delaware             1-5153            25-0996816
       ---------------       ------------    -------------------
       (State or other       (Commission        (IRS Employer
       jurisdiction of       File Number)    Identification No.)
        incorporation)

600 Grant Street, Pittsburgh, PA                            15219-4776
- ---------------------------------------                     ----------
(Address of principal executive offices)                    (Zip Code)

                                 (412) 433-1121
                         ------------------------------
                                        
                         (Registrant's telephone number,
                              including area code)
<PAGE> 2

Item 5.  Other Events

On January 22, 1999, USX Corporation announced fourth quarter and 1998
earnings for the Marathon Group and the U. S. Steel Group.  Copies of the
earnings announcement are attached.

Item 7.  Financial Statements and Exhibits

     (c)  Exhibits

       99.1.        Marathon Group Earnings Release.
       99.2.        U. S. Steel Group Earnings Release.




                                    SIGNATURE

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

USX CORPORATION


By   /s/ Kenneth L. Matheny
     -----------------------
     Kenneth L. Matheny
     Vice President and Comptroller



Dated:  January 22, 1999



                             


                                Contact:William E.Keslar
                                        Don H. Herring
                                        (412) 433-6870


FOR IMMEDIATE RELEASE
<TABLE>
<CAPTION>
                              
    USX CORPORATION REPORTS LOWER FOURTH QUARTER AND 1998
  MARATHON GROUP RESULTS REFLECTING LOWER COMMODITY PRICES

                     Earnings Highlights
          (Dollars in millions except per diluted share data)
                                 4Q      4Q                
                                1998    1997    1998     1997
                                                        
<S>                           <C>     <C>     <C>      <C>
Net income adjusted for                                    
special  items                  $13     $131    $321     $635
         - per diluted share  $0.04   $0.45    $1.09    $2.20
                                                        
Net income (loss)              ($86)    $38     $310     $456
                                                        
Net income (loss) per diluted
 share                       ($0.29)  $0.13    $1.05    $1.58
                                                    
Revenues                      $5,353  $3,920  $22,075  $15,754
</TABLE>
     PITTSBURGH, January 22, 1999 -- USX-Marathon Group's

(NYSE:MRO) net income adjusted for special items was $13

million, or 4 cents per diluted share, in fourth quarter

1998, compared with $131 million, or 45 cents per diluted

share, in fourth quarter 1997.

     Primarily due to lower commodity prices, the Marathon

Group recorded a fourth quarter 1998 net loss of $86 million,

or 29 cents per diluted share.  As a result of lower crude

oil, natural gas and refined product prices, Marathon

recorded an unfavorable inventory market valuation ("IMV")

reserve adjustment (see note 3 to the attached Marathon Group

Statement of Operations) and wrote-off several exploratory

wells which had encountered hydrocarbons, but had been

suspended pending further evaluation.  In addition, Marathon

recorded favorable income tax accrual adjustments relating to

foreign operations.  The net unfavorable aftertax effect of

these special items was $99 million.  Net income in fourth

quarter 1997 was $38 million, or 13 cents per diluted share,

including a $93 million unfavorable aftertax IMV reserve

adjustment.

     The Marathon Group reported 1998 net income adjusted for

special items of $321 million, or $1.09 per diluted share,

compared to 1997 adjusted net income of $635 million, or

$2.20 per diluted share.

     For the year 1998, the Marathon Group recorded net

income of $310 million, or $1.05 per diluted share.  In

addition to the fourth quarter special items discussed above,

net income for the year included impairment of certain

international investments, a change in interest gain and one-

time transition charges relating to the formation of Marathon

Ashland Petroleum LLC ("MAP"), and a natural gas contract

settlement gain.  The net unfavorable aftertax effect of 1998

special items was $11 million.  Net income for the year 1997

was $456 million, or $1.58 per diluted share, including a

$179 million unfavorable aftertax IMV reserve adjustment.

     Commenting on 1998 performance, USX Corporation Board

Chairman Thomas J. Usher said, "The Marathon Group's earnings

were significantly impacted by lower worldwide liquid

hydrocarbon and natural gas prices.  Nevertheless, 1998 saw

us gain momentum in growing and improving the business.

Marathon's upstream operations achieved nearly a 20 percent

growth in worldwide liquids production.  Downstream, MAP had

a very successful first year of operations, achieving annual

repeatable operating efficiencies of approximately $150

million in 1998 and targeting an additional $100 million in

1999."

     For 1998, financial measures such as revenues, income

from operations and capital expenditures include 100 percent

of MAP and are not comparable to prior period amounts (see

Note 2 to the attached Marathon Group Statement of

Operations).  Marathon Group revenues were $5.4 billion in

fourth quarter 1998 and $22.1 billion for the year, compared

with $3.9 billion and $15.8 billion in the same periods of

1997.

     Income for Marathon's reportable operating segments,

which include 100 percent of MAP, was $178 million in fourth

quarter 1998 and $1,207 million for the year 1998, compared

with $275 million and $1,384 million in the same periods of

1997.

     Exploration and production (upstream) operating segment

income totaled $21 million in fourth quarter 1998 and $278

million for the year, compared with $178 million and $773

million in the same periods of 1997.

     Excluding dispositions, Marathon replaced 242 percent of

its 1998 worldwide oil and gas production on a barrel of oil

equivalent (BOE) basis resulting in a five-year reserve

replacement average of 135 percent.

     Domestic upstream income was $31 million in fourth

quarter 1998 and $190 million for the year, compared with

$124 million and $500 million in the same periods of 1997.

The decreases in domestic upstream income for both the fourth

quarter and the year were mainly due to significantly lower

liquid hydrocarbon and natural gas prices compared to 1997.

Liquid prices declined 41 percent in the fourth quarter and

38 percent for the year.  Natural gas prices declined 28

percent and 19 percent respectively in the quarter and year.

These price decreases were partially offset by increased

liquid hydrocarbon and natural gas production.  Domestic

liquid hydrocarbon production, which averaged 134,500 barrels

per day (bpd) in 1998, increased 19,700 bpd, or 17 percent,

over 1997 levels, primarily due to new production in the Gulf

of Mexico.

     International upstream reported a loss of $10 million in

fourth quarter 1998 and income of $88 million for the year,

compared with income of $54 million and $273 million in the

same periods of 1997.  These results also reflect

significantly lower liquid hydrocarbon prices, partially

offset by significantly increased liquid hydrocarbon volumes

reflecting liftings from acquired production in Canada and

new operations in Gabon.

     On August 11, 1998, Marathon completed its acquisition

of Tarragon Oil and Gas Limited, a Canadian oil and gas

exploration and production company (see note 2 to the

attached Marathon Group Statement of Operations).  Current

daily production from Tarragon properties is 160 mmcf of

natural gas and 17,000 barrels of liquids.

     Usher commented, "Tarragon fits well into our growth

strategy and provides Marathon core production in one of

North America's most attractive gas basins.  This acquisition

increased our worldwide reserves by 20 percent and  provides

Marathon numerous growth opportunities in Canada."

     Refining, marketing and transportation (downstream)

segment income, which includes 100 percent of the results of

MAP, was $147 million in fourth quarter 1998 and $896 million

for the year.  On a pro forma basis, segment income for the

combined downstream operations of Marathon and Ashland would

have been $140 million for the fourth quarter 1997 and $869

million for the year 1997 (see note 2 to the attached

Marathon Group Statement of Operations).  Usher noted that,

"During 1998, MAP was able to overcome significant decreases

in refining crack spreads through the realization of

operating efficiencies, a strong performance by its asphalt

and retail operations, and lower energy costs."

     Administrative expenses were $22 million in fourth

quarter 1998 and $106 million for the year 1998, compared

with $34 million and $168 million in the same periods of

1997.  These decreases were primarily due to certain

administrative costs now reported in MAP results and lower

accruals for employee benefit plans and litigation.



                            *****

This release contains forward-looking information concerning
the realization of MAP operating efficiencies.  Factors that
could cause the realization of operating efficiencies at MAP to be less than
anticipated include the costs to implement shared technology
and delays in leveraging volume procurement advantages.
In accordance with the "safe harbor" provisions of the Private
Securities Litigation Reform Act of 1995, USX has included in Form 10-K
for the year ended December 31, 1997 and in its Form 10-Q for the
first, second and third quarter of 1998, cautionary
statements identifying important factors, but not necessarily
all factors, that could cause actual results to differ
materially from those set forth in the forward-looking
statements.

     Statements of Operations and Supplemental Statistics for
the Marathon Group and a consolidated Statement of Operations
for USX Corporation are attached.

     For more information on USX Corporation and Marathon
Group, visit our websites at www.usx.com or www.marathon.com.

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

                            -o0o-
<TABLE>
                   MARATHON GROUP OF USX CORPORATION
                  STATEMENT OF OPERATIONS (Unaudited)
                  -----------------------------------
<CAPTION>
                                                Fourth Quarter       Year
                                                    Ended           Ended
                                                 December 31     December 31
(Dollars in millions, except per share amounts)  1998    1997    1998     1997
- -------------------------------------------------------------------------------
<S>                                            <C>     <C>     <C>      <C>
REVENUES:
Sales                                          $5,327  $3,895  $21,726 $15,668
Dividend and affiliate income                      13      14       50      36
Gain on disposal of assets                          9       8       28      37
Gain on ownership change in Marathon Ashland
                        Petroleum LLC               -       -      245       -
Other income                                        4       3       26      13
                                                ------  ------  ------  ------
   Total revenues                                5,353   3,920  22,075  15,754
                                                ------  ------  ------  ------

COSTS AND EXPENSES:
 Cost of sales (excludes items shown below)      3,750   2,632  15,325   10,392
 Selling, general and administrative expenses      122      92     505      355
 Depreciation, depletion and amortization          240     167     941      664
 Taxes other than income taxes                   1,018     728   3,786    2,938
 Exploration expenses                              110      60     313      189
 Inventory market valuation charges                245     147     267      284
                                                ------  ------  ------   ------
   Total costs and expenses                      5,485   3,826  21,137   14,822
                                                ------  ------  ------   ------
INCOME (LOSS) FROM OPERATIONS                     (132)     94     938      932
Net interest and other financial costs              71      58     237      260
Minority interest in income (loss) of Marathon
 Ashland Petroleum LLC                             (33)      -     249        -
                                                ------  ------  ------   ------
INCOME (LOSS) BEFORE INCOME TAXES                 (170)     36     452      672
Provision (credit) for estimated income taxes      (84)     (2)    142      216
                                                ------  ------  ------   ------
NET INCOME (LOSS)                                 $(86)    $38    $310     $456
                                                ======  ======  ======   ======
MARATHON STOCK DATA:
 Net income (loss) per share
   - Basic                                       $(.29)   $.14   $1.06    $1.59
   - Diluted                                      (.29)    .13    1.05     1.58

 Dividends paid per share                          .21     .19     .84      .76

 Weighted average shares, in thousands
   - Basic                                     301,624 288,566 292,876  288,038
   - Diluted                                   301,624 289,275 293,435  290,520






<FN>
The following notes are an integral part of this financial statement.
</TABLE>
                   MARATHON GROUP OF USX CORPORATION
                 SELECTED NOTES TO FINANCIAL STATEMENT
                 -------------------------------------


1.The statement of operations of the Marathon Group includes the
  results of operations for the businesses of Marathon Oil Company
  (Marathon) and certain other subsidiaries of USX and a portion of
  USX's net financial costs, general and administrative costs and
  income taxes attributed to the groups in accordance with USX's
  accounting and tax allocation policies.  This statement should be
  read in connection with the consolidated statement of operations of
  USX.

2.In August 1998, Marathon acquired Tarragon Oil and Gas Limited
  (Tarragon), a Canadian oil and gas exploration and production
  company, for $1.1 billion.  Securityholders of Tarragon received,
  at their election, Cdn$14.25 for each Tarragon share, or the
  economic equivalent in Exchangeable Shares of an indirect Canadian
  subsidiary of Marathon, which are exchangeable solely on a one-for-
  one basis into USX-Marathon Group Common Stock.  The purchase price
  included cash payments of $686 million, issuance of approximately
  878,000 Exchangeable Shares valued at $29 million and the
  assumption of $345 million in debt.  Marathon accounted for the
  acquisition using the purchase method of accounting.  Results of
  operations include the operations of Marathon Canada Limited,
  formerly known as Tarragon, commencing August 12, 1998.

  During 1997, Marathon and Ashland Inc. (Ashland) agreed to combine
  the major elements of their refining, marketing and transportation
  (RM&T) operations.  On January 1, 1998, Marathon transferred
  certain RM&T net assets to Marathon Ashland Petroleum LLC (MAP), a
  new consolidated subsidiary.  Also on January 1, 1998, Marathon
  acquired certain RM&T net assets from Ashland in exchange for a 38%
  interest in MAP.  The acquisition was accounted for under the
  purchase method of accounting.  The purchase price was determined
  to be $1.9 billion, based upon an external valuation.  The change
  in Marathon's ownership interest in MAP resulted in a gain of $245
  million, which is included in 1998 revenues.

  See attached supplemental unaudited pro forma data relating to the
  inclusion of Tarragon and MAP operations.

3.When USX acquired Marathon in March 1982, crude oil and refined
  product prices were at historically high levels.  USX established a
  new LIFO cost basis for Marathon's inventories by reference to
  these prices.

  Generally accepted accounting principles require that inventories
  be reported at the lower of recorded cost or current market value.
  Marathon has established an inventory market valuation (IMV)
  reserve to reduce the cost basis of its inventories to current
  market value.  Quarterly adjustments to the IMV reserve result in
  noncash charges or credits to income from operations.  Decreases in
  market prices below the cost basis result in charges to income from
  operations.  Once a reserve has been established, subsequent
  increases in prices (up to the cost basis) result in credits to
  income from operations.

  The charges or credits to income resulting from IMV reserve
  adjustments affect the comparability of financial results from
  period to period.  They also affect comparisons with other energy
  companies, many of which do not have such adjustments.  Therefore,
  USX reports separately the effects of IMV reserve adjustments on
  financial results.  In management's opinion, the effects of such
  adjustments should be considered separately when evaluating
  operating performance.
                   MARATHON GROUP OF USX CORPORATION
           SELECTED NOTES TO FINANCIAL STATEMENT (Continued)
           -------------------------------------------------


3.(Continued)

  When USX acquired the crude oil and refined product inventories
  associated with Ashland's RM&T operations in January 1998, a new
  cost basis was established for those inventories.  The acquisition
  cost of these inventories lowered the overall average cost of the
  combined RM&T inventories; as a result, the price threshold at
  which an IMV reserve will be recorded has also been lowered.  This
  acquisition resulted in a one-time reduction in the IMV reserve,
  yielding a net favorable IMV reserve adjustment in the first
  quarter of 1998.
<TABLE>
<CAPTION>
                   MARATHON GROUP OF USX CORPORATION
                  SUPPLEMENTAL STATISTICS (Unaudited)
                  -----------------------------------
                                                Fourth Quarter       Year
                                                    Ended           Ended
                                                 December 31     December 31
(Dollars in millions)                              1998  1997   1998    1997
- -------------------------------------------------------------------------------
<S>                                            <C>     <C>     <C>      <C>
INCOME (LOSS) FROM OPERATIONS
 Exploration & Production ("E&P")
   Domestic                                       $31    $124    $190     $500
   International                                  (10)     54      88      273
                                               ------  ------  ------   ------
     Income For E&P Reportable Segment             21     178     278      773
 Refining, Marketing & Transportation(a)          147      88     896      563
 Other Energy Related Businesses(b)                10       9      33       48
                                               ------  ------  ------   ------
       Income For Reportable Segments            $178    $275  $1,207   $1,384

 Items Not Allocated To Reportable Segments:
   Administrative Expenses                       $(22)   $(34)  $(106)   $(168)
   Inventory Market Val. Res. Adjustment.        (245)   (147)   (267)    (284)
   Gain on Ownership Change
     & Transition Charges-MAP                       -       -     223        -
   E&P Int'l Property Impairments, Suspended Expl.
     Well Write-offs & Gas Contract Settlement    (43)      -    (119)       -
                                               ------  ------  ------   ------
       Marathon Group Income From Operations    $(132)    $94    $938     $932

CAPITAL EXPENDITURES (a)                         $435    $386  $1,270   $1,038
INVESTMENTS IN EQUITY AFFILIATES-NET               23      36      75      233

OPERATING STATISTICS

Net Liquid Hydrocarbon Production (c):
 Domestic                                       137.0   117.4   134.5    114.8
 International (Liftings)                        67.5    45.8    61.3     49.4
                                               ------  ------  ------   ------
   Worldwide                                    204.5   163.2   195.8    164.2

Net Natural Gas Production (d):
 Domestic                                       775.0   737.4   743.8    721.9
 International - Equity                         524.0   415.5   441.2    423.1
 International - Other (e)                       19.6    27.9    22.7     31.7
                                              ------- ------- -------  -------
   Total Consolidated                          1318.6  1180.8  1207.7   1176.7 
Equity Affiliate                                 30.7    41.7    33.2     42.3
                                              ------- ------- -------  -------
   Worldwide                                   1349.3  1222.5  1240.9   1219.0

Average Equity Sales Prices (f):
 Liquid Hydrocarbons (per Bbl)
   Domestic                                     $9.57  $16.25  $10.42   $16.88
   International                                11.31   18.37   12.24    18.77
 Natural Gas (per Mcf)
   Domestic                                     $1.72   $2.38   $1.79    $2.20
   International                                 1.72    1.99    1.94     2.00
Natural Gas Sales (d) (g):
 Domestic                                      1208.4  1106.4  1143.8   1136.9
 International                                  543.7   443.4   463.9    454.8
                                              ------- ------- -------  -------
   Total Consolidated                          1752.1  1549.8  1607.7   1591.7
 Equity Affiliate                                30.7    41.7    33.2     42.3
                                              ------- ------- -------  -------
   Worldwide                                   1782.8  1591.5  1640.9   1634.0

Crude Oil Refined (a) (c)                       862.1   558.6   883.9    524.6
Refined Products Sold (a) (c)                  1238.8   824.6  1197.6    775.4
Matching buy/sell volumes included in refined
 products sold (a) (c)........................   40.7    58.8     39.0    51.0
- --------------
<FN>
      (a)  In 1998, income from operations, capital expenditures,
      refined products sold, crude oil refined and matching buy/sell
      volumes include 100 percent of MAP and are not comparable to
      prior periods.  For further discussion of MAP, see Note 2 to
      the Marathon Group Statement Of Operations.
      (b)  Includes domestic natural gas and crude oil marketing and
      transportation, and power generation
      (c)  Thousands of barrels per day
      (d)  Millions of cubic feet per day
      (e)  Represents gas acquired for injection and subsequent
      resale
      (f)  Prices exclude gains and losses from hedging activities
      (g)  Represents equity, royalty and resale volumes
</TABLE>

                   MARATHON GROUP OF USX CORPORATION
            SUPPLEMENTAL STATISTICS (Continued) (Unaudited)
                  -----------------------------------

The following unaudited pro forma data for the Marathon Group includes
the pro forma results of operations of Tarragon for the years 1998 and
1997 and fourth quarter 1997; and the Ashland RM&T net assets for
1997, giving effect to the acquisitions as if they had been
consummated at the beginning of the years presented.  The pro forma
data is based on historical information and does not necessarily
reflect the actual results that would have occurred, nor is it
necessarily indicative of future results of operations.  See Note 2 to
the Marathon Group Statement Of Operations for additional information.
<TABLE>
<CAPTION>
                                                Fourth Quarter       Year
                                                    Ended           Ended
                                                 December 31     December 31
(Dollars in millions, except per share amounts)  1998    1997    1998     1997
- -------------------------------------------------------------------------------
<S>                                            <C>      <C>    <C>      <C>
Marathon Group:
 Revenues                                      $5,353   $5,736 $22,169  $23,333
 Income for reportable segments (a)               178      335   1,199    1,728
 Net income (loss)(b)                             (86)      47     279      457
 Net income (loss) per common share:
  Basic                                           (.29)    .16     .95     1.58
  Diluted                                         (.29)    .16     .95     1.58

      RM&T Operations (c) (d):
 Income for reportable segment (a)                $147    $140    $896     $869
 Thousands of barrels per day:
  Crude oil refined                              862.1   909.6   883.9    869.3
  Refined products sold                         1238.8  1234.6  1197.6   1186.9
  Matching buy/sell volumes include in refined
   products sold                                  40.7    67.5    39.0     68.6
<FN>
      (a)  Excludes the inventory market valuation reserve
      adjustments, administrative expenses and items not allocated to
      reportable segments.

      (b)  Excluding the inventory market valuation reserve
      adjustment, pro forma net income would have been $383 million
      for 1998 and $132 million and $619 million for the 1997 fourth
      quarter and twelve months, respectively.

      (c)  Pro forma data is based on results of operations from RM&T
      assets contributed to MAP by Marathon and Ashland, purchase
      accounting effects and other pro forma adjustments and
      reclassifications.

      (d)  Results for 1998 are actuals.  There are no pro forma
      effects in 1998, since MAP commenced operations January 1,
      1998.
</TABLE>
<TABLE>
<CAPTION>
                    USX CORPORATION AND SUBSIDIARY COMPANIES
                CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited)
                ------------------------------------------------

                                                Fourth Quarter       Year
                                                    Ended           Ended
                                                 December 31     December 31
(Dollars in millions)                            1998    1997    1998     1997
- --------------------------------------------------------------------------------
<S>                                            <C>     <C>     <C>     <C>
REVENUES:
Sales                                          $6,659  $5,650  $27,887 $22,375
Dividend and affiliate income                      13      44       96     105
Gain on disposal of assets                         24      37       82      94
Gain on ownership change in Marathon Ashland
                  Petroleum LLC                     -       -      245       -
Other income                                        4       3       25       14
                                               ------  ------   ------   ------
   Total revenues                               6,700   5,734   28,335   22,588
                                                ------  ------  ------   ------

COSTS AND EXPENSES:
 Cost of sales (excludes items shown below)      4,947   4,095  20,712   16,047
 Selling, general and administrative expenses       71      55     304      218
 Depreciation, depletion and amortization          303     245   1,224      967
 Taxes other than income taxes                   1,061     786   3,998    3,178
 Exploration expenses                              110      60     313      189
 Inventory market valuation charges                245     147     267      284
                                                ------  ------  ------   ------
   Total costs and expenses                      6,737   5,388  26,818   20,883
                                                ------  ------  ------   ------
INCOME (LOSS) FROM OPERATIONS                      (37)    346   1,517    1,705
Net interest and other financial costs              53      75     279      347
Minority interest in income (loss) of Marathon
 Ashland Petroleum LLC                             (33)      -     249        -
                                                ------  ------  ------   ------
INCOME (LOSS) FROM CONTINUING OPERATIONS
 BEFORE INCOME TAXES                               (57)    271     989    1,358
Provision (credit) for estimated income taxes      (47)     81     315      450
                                                ------  ------  ------   ------
INCOME (LOSS) FROM CONTINUING OPERATIONS           (10)    190     674      908
                                                ------  ------  ------   ------
DISCONTINUED OPERATIONS:
 Loss from operations (net of income tax)            -       -       -       (1)
 Gain on disposal (net of income tax)                -      81       -       81
                                                ------  ------  ------   ------
INCOME FROM DISCONTINUED OPERATIONS                  -      81       -       80
                                                ------  ------  ------   ------
NET INCOME (LOSS)                                  (10)    271     674      988
Noncash credit from exchange of preferred stock      -       -       -       10
Dividends on preferred stock                        (2)     (3)     (9)     (13)
                                                ------  ------  ------   ------
NET INCOME (LOSS) APPLICABLE TO COMMON STOCKS     $(12)   $268    $665     $985
                                                ======  ======  ======   ======
</TABLE>
<TABLE>
<CAPTION>
                    USX CORPORATION AND SUBSIDIARY COMPANIES
          CONSOLIDATED STATEMENT OF OPERATIONS (Continued) (Unaudited)
                             INCOME PER COMMON SHARE
          ------------------------------------------------------------

                                                Fourth Quarter       Year
                                                    Ended           Ended
                                                 December 31     December 31
(Dollars in millions, except per share amounts)  1998    1997    1998     1997
- --------------------------------------------------------------------------------
<S>                                            <C>     <C>     <C>      <C>
APPLICABLE TO MARATHON STOCK:

 Net income (loss)                                $(86)    $38    $310     $456
   - Per share - basic                            (.29)    .14    1.06     1.59
            - diluted                             (.29)    .13    1.05     1.58

 Dividends paid per share                          .21     .19     .84      .76

 Weighted average shares, in thousands
   - Basic                                     301,624 288,566 292,876  288,038
   - Diluted                                   301,624 289,275 293,435  290,520

APPLICABLE TO STEEL STOCK:

 Net income                                        $74    $149    $355     $449
   - Per share - basic                             .83    1.74    4.05     5.24
            - diluted                              .81    1.64    3.92     4.88

 Dividends paid per share                          .25     .25    1.00     1.00

 Weighted average shares, in thousands
   - Basic                                      88,354  86,285  87,508   85,672
   - Diluted                                    95,613  94,274  94,943   94,203























<FN>
The following notes are an integral part of this financial statement.
</TABLE>
                    USX CORPORATION AND SUBSIDIARY COMPANIES
                      SELECTED NOTES TO FINANCIAL STATEMENT
                    ----------------------------------------
1. In August 1998, Marathon Oil Company (Marathon) acquired Tarragon Oil and
   Gas Limited (Tarragon), a Canadian oil and gas exploration and production
   company, for $1.1 billion.  Securityholders of Tarragon received, at their
   election, Cdn$14.25 for each Tarragon share, or the economic equivalent in
   Exchangeable Shares of an indirect Canadian subsidiary of Marathon, which
   are exchangeable solely on a one-for-one basis into USX-Marathon Group
   Common Stock.  The purchase price included cash payments of $686 million,
   issuance of approximately 878,000 Exchangeable Shares valued at $29 million
   and the assumption of $345 million in debt.  USX accounted for the
   acquisition using the purchase method of accounting.  Results of operations
   include the operations of Marathon Canada Limited, formerly known as
   Tarragon, commencing August 12, 1998.

   During 1997, Marathon and Ashland Inc. (Ashland) agreed to combine the major
   elements of their refining, marketing and transportation (RM&T) operations.
   On January 1, 1998, Marathon transferred certain RM&T net assets to Marathon
   Ashland Petroleum LLC (MAP), a new consolidated subsidiary.  Also on January
   1, 1998, Marathon acquired certain RM&T net assets from Ashland in exchange
   for a 38% interest in MAP.  The acquisition was accounted for under the
   purchase method of accounting.  The purchase price was determined to be
   $1.9 billion, based upon an external valuation.  The change in Marathon's
   ownership interest in MAP resulted in a gain of $245 million, which is
   included in 1998 revenues.

2. Effective October 31, 1997, USX sold its stock in Delhi Gas Pipeline
   Corporation and other subsidiaries of USX that comprised all of the Delhi
   Group.  The 1997 financial results of the Delhi Group have been reclassified
   as discontinued operations in the Consolidated Statement of Operations.

3. When USX acquired Marathon in March 1982, crude oil and refined product
   prices were at historically high levels.  USX established a new LIFO cost
   basis for Marathon's inventories by reference to these prices.

   Generally accepted accounting principles require that inventories be
   reported at the lower of recorded cost or current market value.  Marathon
   has established an inventory market valuation (IMV) reserve to reduce the
   cost basis of its inventories to current market value.  Quarterly
   adjustments to the IMV reserve result in noncash charges or credits to
   income from operations.  Decreases in market prices below the cost basis
   result in charges to income from operations.  Once a reserve has been
   established, subsequent increases in prices (up to the cost basis) result in
   credits to income from operations.

   The charges or credits to income resulting from IMV reserve adjustments
   affect the comparability of financial results from period to period.  They
   also affect comparisons with other energy companies, many of which do not
   have such adjustments.  Therefore, USX reports separately the effects of IMV
   reserve adjustments on financial results.  In management's opinion, the
   effects of such adjustments should be considered separately when evaluating
   operating performance.

   When USX acquired the crude oil and refined product inventories associated
   with Ashland's RM&T operations in January 1998, a new cost basis was
   established for those inventories.  The acquisition cost of these
   inventories lowered the overall average cost of the combined RM&T
   inventories; as a result, the price threshold at which an IMV reserve will
   be recorded has also been lowered.  This acquisition resulted in a one-time
   reduction in the IMV reserve, yielding a net favorable IMV reserve
   adjustment in the first quarter of 1998.
                    USX CORPORATION AND SUBSIDIARY COMPANIES
                SELECTED NOTES TO FINANCIAL STATEMENT (Continued)
                -------------------------------------------------


4. In December 1996, USX issued $117 million of debt (notes) indexed to the
   common stock price of RTI International Metals, Inc. (RTI) (formerly RMI
   Titanium Company).  At maturity in February 2000, USX must exchange these
   notes for shares of RTI common stock, or redeem the notes for the equivalent
   amount of cash.  Since USX's investment in RTI is attributed to the U. S.
   Steel Group, the indexed debt is also attributed to the U. S. Steel Group.

   Generally accepted accounting principles require that indexed debt be
   reported at the settlement value.  Quarterly adjustments to the carrying
   value of this indexed debt result in noncash charges or credits to interest
   and other financial costs.

   Net interest and other financial costs included credits of $37 million and
   $4 million in the fourth quarter of 1998 and 1997, respectively, as a result
   of the quarterly adjustments in the carrying value of indexed debt.  For the
   years 1998 and 1997, such adjustments were credits of $44 million and $10
   million, respectively.

   USX holds a 26% interest in RTI and accounts for this investment under the
   equity method of accounting.  Changes in the market value of USX's
   investment in RTI generally offset changes in the settlement value of the
   indexed debt.  However, under the equity method of accounting, USX cannot
   recognize in income these corresponding changes in the market value of its
   investment in RTI.  Such changes will be realized upon disposition of this
   investment.

   The charges or credits to income resulting from indexed debt adjustments
   affect the comparability of financial results from period to period.
   Therefore, USX discusses separately the effects of indexed debt adjustments
   on financial results.  In management's opinion, the effects of such
   adjustments should be considered separately when evaluating financial
   performance.





                           Contact:     W. E. Keslar
                                        Don H. Herring
                                        (412) 433-6870


FOR IMMEDIATE RELEASE

<TABLE>
<CAPTION>
          USX CORPORATION REPORTS DECLINE IN FOURTH QUARTER
      AND 1998 U. S. STEEL GROUP RESULTS DUE TO RECORD IMPORTS
                     Earnings Highlights
         (Dollars in millions except per share data)
                                  4Q       4Q               
                                 1998     1997    1998    1997
<S>                            <C>      <C>     <C>     <C>
Net income adjusted for special                              
items                             $59     $141    $315    $417
 - per diluted share             $.63    $1.52   $3.40   $4.51
Net income                        $76     $152    $364    $452
Net income per diluted share     $.81    $1.64    $3.92  $4.88
                                                         
Revenues                       $1,357   $1,838  $6,283  $6,941

</TABLE>
      PITTSBURGH, January 22, 1999 -- USX-U. S. Steel Group

(NYSE: X) reported fourth quarter 1998 adjusted net income of

$59 million, or 63 cents per diluted share, compared to $141

million, or $1.52 per diluted share in the fourth quarter

1997.  Revenues were $1.4 billion in fourth quarter 1998

compared to $1.8 billion in the same period of 1997.

      U. S. Steel Group recorded fourth quarter 1998 net

income of $76 million, or 81 cents per diluted share.

Results included a $23 million aftertax reduction to interest

expense as a result of adjusting the carrying value of

indexed debt (see note 2 to the attached U. S. Steel Group

statement of operations), partially offset by a $6 million

aftertax charge related to a voluntary early retirement

program.  Fourth quarter 1997 net income of $152 million, or

$1.64 per diluted share, included a gain on the sale of a

plate mill and a reduction to interest expense related to

indexed debt.  The favorable aftertax effect of these special

items was $11 million.

      Fourth quarter 1998 segment income for U. S. Steel

operations was $29 million, or $ 12 per ton, which included a

$10 million pretax charge related to a voluntary early

retirement program.  Fourth quarter 1997 income for U. S.

Steel operations was $208 million, or $70 per ton, which

included a $15 million gain on the sale of a plate mill.

Fourth quarter 1998 results were negatively impacted by the

combined effects of a dramatic increase in imported steel and

the decline in demand for tubular products, resulting in

lower average realized prices and a 21 percent decline in U.

S. Steel's fourth quarter shipments.  Shipments in fourth

quarter 1998 were 2.3 million net tons, compared to 3.0

million net tons in fourth quarter 1997. In response to

market conditions, operating levels were reduced to a less

efficient 76 percent of raw steel capability in fourth

quarter 1998, versus 99 percent in the comparable 1997

quarter.

      For the year 1998, U. S. Steel Group net income

adjusted for special items was $315 million, or $3.40 per

diluted share, compared to $417 million, or $4.51 per diluted

share in 1997.  Revenues in 1998 were $6.3 billion compared

with $6.9 billion in 1997.

      For the year 1998, the U. S. Steel Group recorded net

income of $364 million, or $3.92 per diluted share, which

included the following special items:  favorable effects of

indexed debt adjustments; blast furnace insurance litigation

recoveries; a favorable foreign tax adjustment; and a charge

for the voluntary early retirement program.  The net

favorable aftertax effect of these special items was $49

million.  For the year 1997, the U. S. Steel Group recorded

net income of $452 million, or $4.88 per diluted share, which

included the following special items: blast furnace insurance

recoveries; a gain on the plate mill sale; favorable effects

of indexed debt adjustments; and unfavorable environmental

accrual adjustments.  The net favorable aftertax effect of

these special items was $35 million.

      Segment income for l998 for U. S. Steel operations was

$330 million, or $31 per ton, on shipments of 10.7 million

net tons.  These results included approximately $30 million

for the blast furnace insurance litigation recoveries and a

$10 million charge for the voluntary early retirement

program.  This compares with 1997 income for U. S. Steel

operations of $618 million, or $53 per ton, on shipments of

11.6 million net tons.  These 1997 results included $40

million in blast furnace insurance recoveries, a $15 million

gain on the plate mill sale, and a net charge of $9 million

for environmental accrual adjustments.

      Commenting on the l998 results, USX Board Chairman

Thomas J. Usher said, "During the first half of l998, the U.

S. Steel Group achieved solid financial results comparable to

the record 1997 pace.  However, in mid-l998 imported steel,

including unprecedented volumes at predatory prices, began

flooding U. S. markets.  As a result, the Group's shipments,

average steel prices and operating levels suffered

dramatically throughout the remainder of the year."

      In an attempt to stem the tide of imports, U. S. Steel

joined an industry-labor coalition and filed trade cases for

hot rolled products against Japan, Russia and Brazil in

September.  "As a result of this action," added Usher, "the

U. S. International Trade Commission (ITC), in its

preliminary determination, found the domestic steel industry

was being threatened with material injury as a result of

imports of hot-rolled carbon sheet products from these three

countries.  This preliminary determination of injury is

subject to further investigation by the ITC and U.S.

Department of Commerce.  In addition, the Department of

Commerce is expected to announce its preliminary

determination on anti-dumping duties on February 12, l999."

      In early January 1999, the Clinton Administration sent

a congressionally mandated report to Congress outlining its

plan for responding to the increase in steel imports.  "Unfortunately,

the Administration's Plan was extremely disappointing and fell

far short of what will be required to rectify the import

crisis and the extreme hardship it is imposing on the

domestic steel industry, its workers and their communities,"

said Usher.  "Through the coalition, we will continue to work

with the Administration and Congress in seeking immediate

actions to restore fair trade."

      Added Usher, "The flood of imports caused U. S. Steel

to curtail production to less efficient levels at all

locations in the fourth quarter.  One blast furnace remained

idle at Gary Works.  Raw steel production at the Mon Valley

and Fairfield Works continued at levels well below

capability.  In addition, sections of the plant were idled at

Fairless Works and one of five taconite pellet production

lines in Minnesota was idled."

      To reduce costs, a voluntary early retirement program

was offered to certain nonunion employees in November.  Based

on the acceptance by approximately 400 employees, a $10

million pretax charge was recorded in fourth quarter 1998

results.  Most of the retirements will occur by March 31,

1999.

      Looking ahead, Usher said, "It is uncertain at this

time how soon the import crisis will be resolved.  Steel

consumption in the U.S. remains strong entering 1999.  With

current world conditions, the import problem is far broader

than hot-rolled products from three countries and we continue

to evaluate new trade cases against these and other nations

covering a number of products."

                           ******

      Statements of Operation and Supplemental Statistics for

the U. S. Steel Group and a Consolidated Statement of

Operations for USX Corporation are attached.

      For more information on USX Corporation and U. S. Steel

Group, visit our websites at www.usx.com or www.ussteel.com.

<TABLE>
                              

                 U. S. STEEL GROUP OF USX CORPORATION
                  STATEMENT OF OPERATIONS (Unaudited)
                 ------------------------------------
<CAPTION>
                                                Fourth Quarter       Year
                                                    Ended           Ended
                                                 December 31     December 31
(Dollars in millions, except per share amounts)  1998    1997    1998     1997
- ------------------------------------------------------------------------------
<S>                                             <C>     <C>     <C>      <C>
REVENUES:
 Sales                                          $1,342  $1,779  $6,184   $6,814
 Income from affiliates                              -      30      46       69
 Gain on disposal of assets                         15      29      54       57
 Other income (loss)                                 -       -      (1)       1
                                                ------  ------  ------   ------
   Total revenues                                1,357   1,838   6,283    6,941
                                                ------  ------  ------   ------

COSTS AND EXPENSES:
 Cost of sales (excludes items shown below)      1,207   1,487   5,410    5,762
 Selling, general and administrative
  expenses (credits)                               (51)    (37)   (201)    (137)
 Depreciation, depletion and amortization           63      78     283      303
 Taxes other than income taxes                      43      58     212      240
                                                ------  ------  ------   ------
   Total costs and expenses                      1,262   1,586   5,704    6,168
                                                ------  ------  ------   ------
INCOME FROM OPERATIONS                              95     252     579      773
Net interest and other financial costs             (18)     17      42       87
                                                ------  ------  ------   ------
INCOME BEFORE INCOME TAXES                         113     235     537      686
Provision for estimated income taxes                37      83     173      234
                                                ------  ------  ------   ------
NET INCOME                                          76     152     364      452
Noncash credit from exchange of preferred stock              -       -        - 10
Dividends on preferred stock                        (2)     (3)     (9)     (13)
                                                ------  ------  ------   ------
NET INCOME APPLICABLE TO STEEL STOCK               $74    $149    $355     $449
                                                ======  ======  ======   ======

STEEL STOCK DATA:
 Net income per share
   - Basic                                        $.83   $1.74   $4.05    $5.24
   - Diluted                                       .81    1.64    3.92     4.88

 Dividends paid per share                          .25     .25    1.00     1.00

 Weighted average shares, in thousands
   - Basic                                      88,354  86,285  87,508   85,672
   - Diluted                                    95,613  94,274  94,943   94,203








<FN>
The following notes are an integral part of this financial statement.
</TABLE>
                 U. S. STEEL GROUP OF USX CORPORATION
                 SELECTED NOTES TO FINANCIAL STATEMENT
                --------------------------------------


1.The statement of operations of the U. S. Steel Group includes the
  results of operations for the businesses of USX other than
  businesses included in the Marathon Group and a portion of USX's
  net financial costs, general and administrative costs and income
  taxes attributed to the groups in accordance with USX's accounting
  and tax allocation policies.  This statement should be read in
  connection with the consolidated statement of operations of USX.

2.In December 1996, USX issued $117 million of debt (notes) indexed
  to the common stock price of RTI International Metals, Inc. (RTI)
  (formerly RMI Titanium Company).  At maturity in February 2000, USX
  must exchange these notes for shares of RTI common stock, or redeem
  the notes for the equivalent amount of cash.  Since USX's
  investment in RTI is attributed to the U. S. Steel Group, the
  indexed debt is also attributed to the U. S. Steel Group.

  Generally accepted accounting principles require that indexed debt
  be reported at the settlement value.  Quarterly adjustments to the
  carrying value of this indexed debt result in noncash charges or
  credits to interest and other financial costs.

  Net interest and other financial costs included credits of $37
  million and $4 million in the fourth quarter of 1998 and 1997,
  respectively, as a result of the quarterly adjustments in the
  carrying value of indexed debt.  For the years 1998 and 1997, such
  adjustments were credits of $44 million and $10 million,
  respectively.

  USX holds a 26% interest in RTI and accounts for this investment
  under the equity method of accounting.  Changes in the market value
  of USX's investment in RTI generally offset changes in the
  settlement value of the indexed debt.  However, under the equity
  method of accounting, USX cannot recognize in income these
  corresponding changes in the market value of its investment in RTI.
  Such changes will be realized upon disposition of this investment.

  The charges or credits to income resulting from indexed debt
  adjustments affect the comparability of financial results from
  period to period.  Therefore, USX discusses separately the effects
  of indexed debt adjustments on financial results.  In management's
  opinion, the effects of such adjustments should be considered
  separately when evaluating financial performance.
<TABLE>
<CAPTION>
              U.S. STEEL GROUP OF USX CORPORATION
              SUPPLEMENTAL STATISTICS (Unaudited)
              -----------------------------------
                        ($ in Millions)

                                                Fourth Quarter       Year
                                                    Ended           Ended
                                                 December 31     December 31
                                                 1998  1997(e)   1998   1997(e)
                                                ------  ------  ------   ------
<S>                                             <C>     <C>     <C>      <C>
REVENUES                                        $1,357  $1,838  $6,283   $6,941

INCOME FROM OPERATIONS

   U. S. Steel Operations(a)                       $29    $208    $330     $618
   Unallocated:
    Pension credits                                 93      78     373      313
    Administrative expenses                        (4)      (7)    (24)     (33)
    Costs related to former business activities(b)(23)     (27)   (100)    (125)
                                                  ----    ----    ----     ----
 Total U. S. Steel Group                           $95    $252    $579     $773

PENSION COSTS INCLUDED IN U. S. STEEL OPERATIONS   $54     $44     $187    $169

CAPITAL EXPENDITURES                               $82     $85    $310     $261

OPERATING STATISTICS

 Steel Shipments (c)                             2,342   2,973  10,686   11,643
 Raw Steel-Production (c)                        2,440   3,193  11,214   12,350
 Raw Steel-Capability Utilization (d)            75.6%   99.0%   87.6%    96.5%

- ------------
<FN>
      (a)  Includes the production and sale of steel
      products, coke and taconite pellets; domestic coal
      mining; the management of mineral resources;
      engineering and consulting services; and equity income
      from joint ventures and partially-owned companies, such
      as USS/Kobe Steel Company, USS-POSCO Industries, PRO-
      TEC Coating Company, Transtar, Inc., and RTI
      International Metals, Inc. (formerly RMI Titanium
      Company). Also includes results of real estate
      development and management, and leasing and financing
      activities.

      (b)  Includes other postretirement benefit costs and
      certain other expenses principally attributable to
      former business units of the U. S. Steel Group.  1997
      results included charges of $9 million related to
      environmental accruals and the adoption of SOP 96-1.

      (c)  Thousands of net tons.

      (d)  Based on annual raw steel production capability of
      12.8 million tons.

      (e)  Certain 1997 amounts have been reclassified to
      conform to 1998 classifications.
</TABLE>
<TABLE>
<CAPTION>
                    USX CORPORATION AND SUBSIDIARY COMPANIES
                CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited)
                ------------------------------------------------

                                                Fourth Quarter       Year
                                                    Ended           Ended
                                                 December 31     December 31
(Dollars in millions)                            1998    1997    1998     1997
- --------------------------------------------------------------------------------
<S>                                             <C>     <C>     <C>     <C>
REVENUES:
Sales                                           $6,659  $5,650  $27,887 $22,375
Dividend and affiliate income                       13      44       96     105
Gain on disposal of assets                          24      37       82      94
Gain on ownership change in Marathon Ashland
                         Petroleum LLC               -       -      245       -
Other income                                         4       3       25      14
                                                ------  ------  ------   ------
   Total revenues                                6,700   5,734  28,335   22,588
                                                ------  ------  ------   ------

COSTS AND EXPENSES:
 Cost of sales (excludes items shown below)      4,947   4,095  20,712   16,047
 Selling, general and administrative expenses       71      55     304      218
 Depreciation, depletion and amortization          303     245   1,224      967
 Taxes other than income taxes                   1,061     786   3,998    3,178
 Exploration expenses                              110      60     313      189
 Inventory market valuation charges                245     147     267      284
                                                ------  ------  ------   ------
   Total costs and expenses                      6,737   5,388  26,818   20,883
                                                ------  ------  ------   ------
INCOME (LOSS) FROM OPERATIONS                      (37)    346   1,517    1,705
Net interest and other financial costs              53      75     279      347
Minority interest in income (loss) of Marathon
 Ashland Petroleum LLC                             (33)      -     249        -
                                                ------  ------  ------   ------
INCOME (LOSS) FROM CONTINUING OPERATIONS
 BEFORE INCOME TAXES                               (57)    271     989    1,358
Provision (credit) for estimated income taxes      (47)     81     315      450
                                                ------  ------  ------   ------
INCOME (LOSS) FROM CONTINUING OPERATIONS           (10)    190     674      908
                                                ------  ------  ------   ------
DISCONTINUED OPERATIONS:
 Loss from operations (net of income tax)            -       -       -       (1)
 Gain on disposal (net of income tax)                -      81       -       81
                                                ------  ------  ------   ------
INCOME FROM DISCONTINUED OPERATIONS                  -      81       -       80
                                                ------  ------  ------   ------
NET INCOME (LOSS)                                  (10)    271     674      988
Noncash credit from exchange of preferred stock      -       -       -       10
Dividends on preferred stock                        (2)     (3)     (9)     (13)
                                                ------  ------  ------   ------
NET INCOME (LOSS) APPLICABLE TO COMMON STOCKS     $(12)   $268    $665     $985
                                                ======  ======  ======   ======
</TABLE>
<TABLE>
<CAPTION>
                    USX CORPORATION AND SUBSIDIARY COMPANIES
          CONSOLIDATED STATEMENT OF OPERATIONS (Continued) (Unaudited)
                             INCOME PER COMMON SHARE
          ------------------------------------------------------------

                                                Fourth Quarter       Year
                                                    Ended           Ended
                                                 December 31     December 31
(Dollars in millions, except per share amounts)  1998    1997    1998     1997
- --------------------------------------------------------------------------------
<S>                                            <C>     <C>     <C>      <C>
APPLICABLE TO MARATHON STOCK:

 Net income (loss)                                $(86)    $38    $310     $456
   - Per share - basic                            (.29)    .14    1.06     1.59
            - diluted                             (.29)    .13    1.05     1.58

 Dividends paid per share                          .21     .19     .84      .76

 Weighted average shares, in thousands
   - Basic                                     301,624 288,566 292,876  288,038
   - Diluted                                   301,624 289,275 293,435  290,520

APPLICABLE TO STEEL STOCK:

 Net income                                        $74    $149    $355     $449
   - Per share - basic                             .83    1.74    4.05     5.24
            - diluted                              .81    1.64    3.92     4.88

 Dividends paid per share                          .25     .25    1.00     1.00

 Weighted average shares, in thousands
   - Basic                                      88,354  86,285  87,508   85,672
   - Diluted                                    95,613  94,274  94,943   94,203























<FN>
The following notes are an integral part of this financial statement.
</TABLE>
                    USX CORPORATION AND SUBSIDIARY COMPANIES
                      SELECTED NOTES TO FINANCIAL STATEMENT
                    ----------------------------------------
1. In August 1998, Marathon Oil Company (Marathon) acquired Tarragon Oil and
   Gas Limited (Tarragon), a Canadian oil and gas exploration and production
   company, for $1.1 billion.  Securityholders of Tarragon received, at their
   election, Cdn$14.25 for each Tarragon share, or the economic equivalent in
   Exchangeable Shares of an indirect Canadian subsidiary of Marathon, which
   are exchangeable solely on a one-for-one basis into USX-Marathon Group
   Common Stock.  The purchase price included cash payments of $686 million,
   issuance of approximately 878,000 Exchangeable Shares valued at $29 million
   and the assumption of $345 million in debt.  USX accounted for the
   acquisition using the purchase method of accounting.  Results of operations
   include the operations of Marathon Canada Limited, formerly known as
   Tarragon, commencing August 12, 1998.

   During 1997, Marathon and Ashland Inc. (Ashland) agreed to combine the major
   elements of their refining, marketing and transportation (RM&T) operations.
   On January 1, 1998, Marathon transferred certain RM&T net assets to Marathon
   Ashland Petroleum LLC (MAP), a new consolidated subsidiary.  Also on January
   1, 1998, Marathon acquired certain RM&T net assets from Ashland in exchange
   for a 38% interest in MAP.  The acquisition was accounted for under the
   purchase method of accounting.  The purchase price was determined to be
   $1.9 billion, based upon an external valuation.  The change in Marathon's
   ownership interest in MAP resulted in a gain of $245 million, which is
   included in 1998 revenues.

2. Effective October 31, 1997, USX sold its stock in Delhi Gas Pipeline
   Corporation and other subsidiaries of USX that comprised all of the Delhi
   Group.  The 1997 financial results of the Delhi Group have been reclassified
   as discontinued operations in the Consolidated Statement of Operations.

3. When USX acquired Marathon in March 1982, crude oil and refined product
   prices were at historically high levels.  USX established a new LIFO cost
   basis for Marathon's inventories by reference to these prices.

   Generally accepted accounting principles require that inventories be
   reported at the lower of recorded cost or current market value.  Marathon
   has established an inventory market valuation (IMV) reserve to reduce the
   cost basis of its inventories to current market value.  Quarterly
   adjustments to the IMV reserve result in noncash charges or credits to
   income from operations.  Decreases in market prices below the cost basis
   result in charges to income from operations.  Once a reserve has been
   established, subsequent increases in prices (up to the cost basis) result in
   credits to income from operations.

   The charges or credits to income resulting from IMV reserve adjustments
   affect the comparability of financial results from period to period.  They
   also affect comparisons with other energy companies, many of which do not
   have such adjustments.  Therefore, USX reports separately the effects of IMV
   reserve adjustments on financial results.  In management's opinion, the
   effects of such adjustments should be considered separately when evaluating
   operating performance.

   When USX acquired the crude oil and refined product inventories associated
   with Ashland's RM&T operations in January 1998, a new cost basis was
   established for those inventories.  The acquisition cost of these
   inventories lowered the overall average cost of the combined RM&T
   inventories; as a result, the price threshold at which an IMV reserve will
   be recorded has also been lowered.  This acquisition resulted in a one-time
   reduction in the IMV reserve, yielding a net favorable IMV reserve
   adjustment in the first quarter of 1998.
                    USX CORPORATION AND SUBSIDIARY COMPANIES
                SELECTED NOTES TO FINANCIAL STATEMENT (Continued)
                -------------------------------------------------


4. In December 1996, USX issued $117 million of debt (notes) indexed to the
   common stock price of RTI International Metals, Inc. (RTI) (formerly RMI
   Titanium Company).  At maturity in February 2000, USX must exchange these
   notes for shares of RTI common stock, or redeem the notes for the equivalent
   amount of cash.  Since USX's investment in RTI is attributed to the U. S.
   Steel Group, the indexed debt is also attributed to the U. S. Steel Group.

   Generally accepted accounting principles require that indexed debt be
   reported at the settlement value.  Quarterly adjustments to the carrying
   value of this indexed debt result in noncash charges or credits to interest
   and other financial costs.

   Net interest and other financial costs included credits of $37 million and
   $4 million in the fourth quarter of 1998 and 1997, respectively, as a result
   of the quarterly adjustments in the carrying value of indexed debt.  For the
   years 1998 and 1997, such adjustments were credits of $44 million and $10
   million, respectively.

   USX holds a 26% interest in RTI and accounts for this investment under the
   equity method of accounting.  Changes in the market value of USX's
   investment in RTI generally offset changes in the settlement value of the
   indexed debt.  However, under the equity method of accounting, USX cannot
   recognize in income these corresponding changes in the market value of its
   investment in RTI.  Such changes will be realized upon disposition of this
   investment.

   The charges or credits to income resulting from indexed debt adjustments
   affect the comparability of financial results from period to period.
   Therefore, USX discusses separately the effects of indexed debt adjustments
   on financial results.  In management's opinion, the effects of such
   adjustments should be considered separately when evaluating financial
   performance.








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