
<TABLE> <S> <C>

<ARTICLE> 5
<MULTIPLIER> 1000

<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               SEP-30-1999
<CASH>                                          14,726
<SECURITIES>                                        66
<RECEIVABLES>                                  246,372
<ALLOWANCES>                                    11,358
<INVENTORY>                                     15,387
<CURRENT-ASSETS>                               443,678
<PP&E>                                         940,944
<DEPRECIATION>                                 458,508
<TOTAL-ASSETS>                               2,481,270
<CURRENT-LIABILITIES>                          554,890
<BONDS>                                        501,869
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           782
<OTHER-SE>                                   1,141,687
<TOTAL-LIABILITY-AND-EQUITY>                 2,481,270
<SALES>                                              0
<TOTAL-REVENUES>                             1,131,635
<CGS>                                                0
<TOTAL-COSTS>                                        0
<OTHER-EXPENSES>                               916,650
<LOSS-PROVISION>                                 7,557
<INTEREST-EXPENSE>                              33,378
<INCOME-PRETAX>                                176,790
<INCOME-TAX>                                    72,442
<INCOME-CONTINUING>                            101,125
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   101,125
<EPS-BASIC>                                      $1.30
<EPS-DILUTED>                                    $1.28


</TABLE>
