<ARTICLE> 5
<MULTIPLIER> 1,000
       
                                          
<PERIOD-TYPE>                                      6-MOS
<PERIOD-START>                               JAN-01-1997
<FISCAL-YEAR-END>                            DEC-31-1997
<PERIOD-END>                                 JUN-30-1997
<CASH>                                            22,200
<SECURITIES>                                           0
<RECEIVABLES>                                     30,500
<ALLOWANCES>                                           0
<INVENTORY>                                       60,400
<CURRENT-ASSETS>                                 132,800
<PP&E>                                         1,117,000
<DEPRECIATION>                                   359,100
<TOTAL-ASSETS>                                   920,100
<CURRENT-LIABILITIES>                            221,000
<BONDS>                                          383,400
<PREFERRED-MANDATORY>                                  0
<PREFERRED>                                        1,800
<COMMON>                                           1,100
<OTHER-SE>                                       296,000
<TOTAL-LIABILITY-AND-EQUITY>                     920,100
<SALES>                                          111,700
<TOTAL-REVENUES>                                 111,700
<CGS>                                             68,400
<TOTAL-COSTS>                                    111,100
<OTHER-EXPENSES>                                   1,200
<LOSS-PROVISION>                                       0
<INTEREST-EXPENSE>                                14,600<F1>
<INCOME-PRETAX>                                 (15,200)
<INCOME-TAX>                                         100
<INCOME-CONTINUING>                             (15,300)
<DISCONTINUED>                                         0
<EXTRAORDINARY>                                        0
<CHANGES>                                          4,500
<NET-INCOME>                                    (10,800)
<EPS-PRIMARY>                                      (.14)
<EPS-DILUTED>                                      (.14)
<FN>
<F1>Net of interest income of $0.9 million and capitalized interest of $4.2
million.
</FN>