
<TABLE> <S> <C>

<ARTICLE> 5
<MULTIPLIER> 1000

<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                          12,386
<SECURITIES>                                       385
<RECEIVABLES>                                  250,440
<ALLOWANCES>                                    10,721
<INVENTORY>                                     14,086
<CURRENT-ASSETS>                               423,120
<PP&E>                                         922,954
<DEPRECIATION>                                 444,448
<TOTAL-ASSETS>                               2,391,385
<CURRENT-LIABILITIES>                          524,127
<BONDS>                                        503,295
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           781
<OTHER-SE>                                   1,107,479
<TOTAL-LIABILITY-AND-EQUITY>                 2,391,385
<SALES>                                              0
<TOTAL-REVENUES>                               761,736
<CGS>                                                0
<TOTAL-COSTS>                                        0
<OTHER-EXPENSES>                               604,807
<LOSS-PROVISION>                                 4,918
<INTEREST-EXPENSE>                              22,099
<INCOME-PRETAX>                                132,866
<INCOME-TAX>                                    54,488
<INCOME-CONTINUING>                             76,232
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    76,232
<EPS-BASIC>                                       $.98
<EPS-DILUTED>                                     $.96


</TABLE>
