<ARTICLE> 5 <MULTIPLIER> 1000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-2000 <PERIOD-END> SEP-30-2000 <CASH> 62,469 <SECURITIES> 0 <RECEIVABLES> 351,815 <ALLOWANCES> (13,075) <INVENTORY> 8,363 <CURRENT-ASSETS> 525,239 <PP&E> 1,104,020 <DEPRECIATION> (752,229) <TOTAL-ASSETS> 943,438 <CURRENT-LIABILITIES> 419,717 <BONDS> 15,100 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 76,717 <OTHER-SE> 181,861 <TOTAL-LIABILITY-AND-EQUITY> 943,438 <SALES> 0 <TOTAL-REVENUES> 1,772,632 <CGS> 0 <TOTAL-COSTS> 1,766,148 <OTHER-EXPENSES> 6,676 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 3,580 <INCOME-PRETAX> (192) <INCOME-TAX> 1,359 <INCOME-CONTINUING> (1,551) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (1,551) <EPS-BASIC> (0.07) <EPS-DILUTED> (0.07)