<ARTICLE> 5
<LEGEND>
THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET AND THE CONSOLIDATED STATEMENTS OF OPERATIONS AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1994
<PERIOD-START>                             JAN-01-1994
<PERIOD-END>                               SEP-30-1994
<CASH>                                          25,478
<SECURITIES>                                    43,609
<RECEIVABLES>                                   34,192
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                               138,825
<PP&E>                                         450,511
<DEPRECIATION>                                  83,768
<TOTAL-ASSETS>                                 630,422
<CURRENT-LIABILITIES>                           48,447
<BONDS>                                        151,959
<COMMON>                                         2,401
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                     392,885
<TOTAL-LIABILITY-AND-EQUITY>                   630,422
<SALES>                                        124,086
<TOTAL-REVENUES>                               146,104
<CGS>                                                0
<TOTAL-COSTS>                                   41,208
<OTHER-EXPENSES>                                27,719
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               9,262
<INCOME-PRETAX>                                 67,915
<INCOME-TAX>                                    21,072
<INCOME-CONTINUING>                             46,843
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    46,843
<EPS-PRIMARY>                                     1.95
<EPS-DILUTED>                                     1.95