<ARTICLE> 5

                                                  
<PERIOD-TYPE>                   3-MOS                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000             DEC-31-2000
<PERIOD-START>                             APR-01-2000             JAN-01-2000
<PERIOD-END>                               JUN-30-2000             JUN-30-2000
<CASH>                                               0                       0
<SECURITIES>                                         0                       0
<RECEIVABLES>                              260,600,000             260,600,000
<ALLOWANCES>                                13,800,000              13,800,000
<INVENTORY>                                          0                       0
<CURRENT-ASSETS>                           339,500,000             339,500,000
<PP&E>                                   2,198,500,000           2,198,500,000
<DEPRECIATION>                             589,700,000             589,700,000
<TOTAL-ASSETS>                           3,375,600,000           3,375,600,000
<CURRENT-LIABILITIES>                      366,800,000             366,800,000
<BONDS>                                  1,103,000,000           1,103,000,000
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                     1,800,000               1,800,000
<OTHER-SE>                               1,611,800,000           1,611,800,000
<TOTAL-LIABILITY-AND-EQUITY>             3,375,600,000           3,375,600,000
<SALES>                                              0                       0
<TOTAL-REVENUES>                           533,500,000           1,035,000,000
<CGS>                                                0                       0
<TOTAL-COSTS>                               320,500,00             626,600,000
<OTHER-EXPENSES>                            97,100,000             190,800,000
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                          20,200,000              40,600,000
<INCOME-PRETAX>                             96,200,000             177,800,000
<INCOME-TAX>                                37,000,000              68,400,000
<INCOME-CONTINUING>                         59,200,000             109,400,000
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                59,200,000             109,400,000
<EPS-BASIC>                                        .34                     .62
<EPS-DILUTED>                                      .34                     .62