<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-END> DEC-31-1998 <CASH> 2,200 <SECURITIES> 0 <RECEIVABLES> 56,273 <ALLOWANCES> (474) <INVENTORY> 9,312 <CURRENT-ASSETS> 71,115 <PP&E> 1,110,556 <DEPRECIATION> (480,648) <TOTAL-ASSETS> 704,160 <CURRENT-LIABILITIES> 99,034 <BONDS> 343,000 <COMMON> 193,598 <PREFERRED-MANDATORY> 0 <PREFERRED> 56,700 <OTHER-SE> (67,630) <TOTAL-LIABILITY-AND-EQUITY> 704,160 <SALES> 152,936 <TOTAL-REVENUES> 159,606 <CGS> 132,676 <TOTAL-COSTS> 132,676 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 18,598 <INCOME-PRETAX> 8,805 <INCOME-TAX> 3,501 <INCOME-CONTINUING> 1,902 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 1,902 <EPS-PRIMARY> 0.08 <EPS-DILUTED> 0.08