<ARTICLE> 5
<RESTATED>
<MULTIPLIER> 1,000,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               SEP-30-1999
<CASH>                                               3
<SECURITIES>                                         0
<RECEIVABLES>                                      165
<ALLOWANCES>                                        19
<INVENTORY>                                         21
<CURRENT-ASSETS>                                   213
<PP&E>                                           2,011
<DEPRECIATION>                                   1,262
<TOTAL-ASSETS>                                   1,415
<CURRENT-LIABILITIES>                              438
<BONDS>                                            766
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             1
<OTHER-SE>                                          74
<TOTAL-LIABILITY-AND-EQUITY>                     1,415
<SALES>                                              0
<TOTAL-REVENUES>                                   758
<CGS>                                                0
<TOTAL-COSTS>                                      603
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                    19
<INTEREST-EXPENSE>                                  32
<INCOME-PRETAX>                                    124
<INCOME-TAX>                                        45
<INCOME-CONTINUING>                                 79
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                        79
<EPS-BASIC>                                       0.58
<EPS-DILUTED>                                     0.56