<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from
March 31, 1996 financial statements and is qualified in its entirety
by reference to such financial statements. EPS amounts have been
restated to reflect the Company's adoption of Financial Accounting
Standards No. 128, "Earnings Per Share" as of December 31, 1997.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               MAR-31-1996
<CASH>                                          48,481
<SECURITIES>                                    26,509
<RECEIVABLES>                                   36,168
<ALLOWANCES>                                       810
<INVENTORY>                                      1,793
<CURRENT-ASSETS>                               115,043
<PP&E>                                         632,408
<DEPRECIATION>                                  87,470
<TOTAL-ASSETS>                                 845,446
<CURRENT-LIABILITIES>                           44,267
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                      8,840
<COMMON>                                           361
<OTHER-SE>                                     248,794
<TOTAL-LIABILITY-AND-EQUITY>                   845,446
<SALES>                                         35,781
<TOTAL-REVENUES>                                35,781
<CGS>                                            9,541
<TOTAL-COSTS>                                    9,541
<OTHER-EXPENSES>                                 6,401
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             (5,698)
<INCOME-PRETAX>                                 12,044
<INCOME-TAX>                                       693
<INCOME-CONTINUING>                             11,351
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    11,351
<EPS-PRIMARY>                                     0.30
<EPS-DILUTED>                                     0.29