<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from SEC Form
10-Q/A for quarter ending June 30, 1998 and is qualified in its entirety by
reference to such financial statements.
</LEGEND>
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                          12,431
<SECURITIES>                                         0
<RECEIVABLES>                                   36,607
<ALLOWANCES>                                     1,371
<INVENTORY>                                      6,641
<CURRENT-ASSETS>                                63,209
<PP&E>                                         517,889
<DEPRECIATION>                                  85,867
<TOTAL-ASSETS>                                 588,004
<CURRENT-LIABILITIES>                           57,953
<BONDS>                                        320,173
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           124
<OTHER-SE>                                     150,137
<TOTAL-LIABILITY-AND-EQUITY>                   588,004
<SALES>                                        125,706
<TOTAL-REVENUES>                               125,706
<CGS>                                           86,410
<TOTAL-COSTS>                                  107,628
<OTHER-EXPENSES>                                 1,575
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               6,968
<INCOME-PRETAX>                                  9,535
<INCOME-TAX>                                     4,100
<INCOME-CONTINUING>                              5,435
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                  (299)
<CHANGES>                                            0
<NET-INCOME>                                     5,136
<EPS-PRIMARY>                                      .42
<EPS-DILUTED>                                      .42