<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-START> JAN-01-1996 <PERIOD-END> SEP-30-1996 <CASH> 17,089 <SECURITIES> 0 <RECEIVABLES> 299,884 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 353,989 <PP&E> 1,994,650 <DEPRECIATION> 1,133,184 <TOTAL-ASSETS> 1,242,038 <CURRENT-LIABILITIES> 382,600 <BONDS> 220,484 <COMMON> 28,858 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 390,740 <TOTAL-LIABILITY-AND-EQUITY> 1,242,038 <SALES> 0 <TOTAL-REVENUES> 2,291,407 <CGS> 0 <TOTAL-COSTS> 2,267,049 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 16,542 <INCOME-PRETAX> 8,044 <INCOME-TAX> 11,337 <INCOME-CONTINUING> (3,293) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (3,293) <EPS-PRIMARY> (.12) <EPS-DILUTED> (.12)