<TABLE> <S> <C>
<ARTICLE> 5
<RESTATED>
<S> <C> <C> <C>
<PERIOD-TYPE> 12-MOS 12-MOS 12-MOS
<FISCAL-YEAR-END> DEC-31-1999 DEC-31-1998 DEC-31-1997
<PERIOD-END> DEC-31-1999 DEC-31-1998 DEC-31-1997
<CASH> 24,024 15,333 175,953
<SECURITIES> 0 0 0
<RECEIVABLES> 43,198 51,160 117,484
<ALLOWANCES> 303 318 326
<INVENTORY> 5,160 14,488 14,563
<CURRENT-ASSETS> 78,001 94,663 316,265
<PP&E> 2,540,374 2,494,438 2,219,750
<DEPRECIATION> 1,490,076 1,458,742 1,332,724
<TOTAL-ASSETS> 1,163,679 1,163,415 1,273,959
<CURRENT-LIABILITIES> 153,580 244,426 224,426
<BONDS> 379,267 372,767 414,267
0 0 0
0 0 0
<COMMON> 5,386 5,386 5,386
<OTHER-SE> 379,788 335,896 406,619
<TOTAL-LIABILITY-AND-EQUITY> 1,163,679 1,163,415 1,273,959
<SALES> 894,356 720,260 810,744
<TOTAL-REVENUES> 894,356 720,260 810,744
<CGS> 0 0 0
<TOTAL-COSTS> 726,395 719,683 696,748
<OTHER-EXPENSES> 31,464 24,129 21,362
<LOSS-PROVISION> 0 0 0
<INTEREST-EXPENSE> 34,499 34,572 26,733
<INCOME-PRETAX> 101,998 (58,124) 65,901
<INCOME-TAX> 34,664 (25,270) 21,610
<INCOME-CONTINUING> 67,334 (32,854) 44,291
<DISCONTINUED> 0 3,250 (58,515)
<EXTRAORDINARY> 0 0 (13,250)
<CHANGES> 0 0 0
<NET-INCOME> 67,334 (29,604) (27,474)
<EPS-BASIC> 1.37 (.67) (.54)
<EPS-DILUTED> 1.37 (.67) (.54)
</TABLE>