<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CONSOLIDATED
STATEMENTS OF INCOME AND CONSOLIDATED BALANCE SHEETS AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                              14
<SECURITIES>                                         0
<RECEIVABLES>                                      895
<ALLOWANCES>                                         0<F1>
<INVENTORY>                                         45
<CURRENT-ASSETS>                                 1,247
<PP&E>                                           4,398
<DEPRECIATION>                                       0<F1>
<TOTAL-ASSETS>                                   6,141
<CURRENT-LIABILITIES>                            1,769
<BONDS>                                          1,127
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                        497
<COMMON>                                             0
<OTHER-SE>                                         967
<TOTAL-LIABILITY-AND-EQUITY>                     6,141
<SALES>                                              0
<TOTAL-REVENUES>                                 2,383
<CGS>                                                0
<TOTAL-COSTS>                                    2,275
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  70
<INCOME-PRETAX>                                     57
<INCOME-TAX>                                        22
<INCOME-CONTINUING>                                 35
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                        35
<EPS-PRIMARY>                                        0
<EPS-DILUTED>                                        0
<FN>
<F1>NOT SEPARATELY IDENTIFIED IN THE CONSOLIDATED FINANCIAL STATEMENTS OR
ACCOMPANYING NOTES THERETO.
</FN>