<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THESE AMOUNTS HAVE BEEN RESTATED FOR THE ACQUISITION OF MAPCO INC., WHICH WAS
ACCOUNTED FOR AS A POOLING OF INTERESTS.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000,000
       
<S>                             <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996             DEC-31-1996             DEC-31-1996
<PERIOD-START>                             JAN-01-1996             JAN-01-1996             JAN-01-1996
<PERIOD-END>                               MAR-31-1996             JUN-30-1996             SEP-30-1996
<CASH>                                              59                      59                      85
<SECURITIES>                                         0                       0                       0
<RECEIVABLES>                                      880                     855                     872
<ALLOWANCES>                                        15                      16                      17
<INVENTORY>                                        211                     255                     241
<CURRENT-ASSETS>                                 1,706                   1,670                   1,489
<PP&E>                                           5,017                   5,113                   5,297
<DEPRECIATION>                                   1,424                   1,471                   1,514
<TOTAL-ASSETS>                                   6,764                   6,632                   6,628
<CURRENT-LIABILITIES>                            1,474                   1,258                   1,272
<BONDS>                                          1,257                   1,305                   1,235
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                             0                       0                       0
<OTHER-SE>                                       2,958                   2,975                   3,018
<TOTAL-LIABILITY-AND-EQUITY>                     6,764                   6,632                   6,628
<SALES>                                              0                       0                       0
<TOTAL-REVENUES>                                 1,164                   2,356                   3,585
<CGS>                                                0                       0                       0
<TOTAL-COSTS>                                    1,003                   2,072                   3,173
<OTHER-EXPENSES>                                     0                       0                       0
<LOSS-PROVISION>                                     1                       1                       1
<INTEREST-EXPENSE>                                  22                      44                      69
<INCOME-PRETAX>                                    157                     255                     363
<INCOME-TAX>                                        57                      87                     121
<INCOME-CONTINUING>                                100                     169                     242
<DISCONTINUED>                                       8                    (31)                    (33)
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                       108                     138                     210
<EPS-PRIMARY>                                     0.00                    0.00                    0.00
<EPS-DILUTED>                                     0.00                    0.00                    0.00
        

</TABLE>