<ARTICLE> 5
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                             106
<SECURITIES>                                         0
<RECEIVABLES>                                     1063
<ALLOWANCES>                                         8
<INVENTORY>                                       1888
<CURRENT-ASSETS>                                  3188
<PP&E>                                           25996
<DEPRECIATION>                                   15600
<TOTAL-ASSETS>                                   16955
<CURRENT-LIABILITIES>                             3084
<BONDS>                                           3538
<PREFERRED-MANDATORY>                              182
<PREFERRED>                                          3
<COMMON>                                           383<F1>
<OTHER-SE>                                        4740
<TOTAL-LIABILITY-AND-EQUITY>                     16955
<SALES>                                          11734
<TOTAL-REVENUES>                                 11734
<CGS>                                            10981
<TOTAL-COSTS>                                    10981
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 197
<INCOME-PRETAX>                                    616
<INCOME-TAX>                                       206
<INCOME-CONTINUING>                                410
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       410
<EPS-PRIMARY>                                        0<F2>
<EPS-DILUTED>                                        0<F3>
<FN>
<F1>CONSISTS OF MARATHON STOCK ISSUED, $288; STEEL STOCK ISSUED, $86; DELHI
STOCK ISSUED, $9.
<F2>PRIMARY EARNINGS (LOSS) PER SHARE APPLICABLE TO MARATHON STOCK, $.78; STEEL
STOCK, $2.19; DELHI STOCK $(.01).
<F3>FULLY DILUTED EARNINGS (LOSS) PER SHARE APPLICABLE TO MARATHON STOCK, $.78;
STEEL STOCK, $2.00; DELHI STOCK, $(.01).
</FN>