<ARTICLE>                     5
<LEGEND>
This schedule contains summary financial information extracted from the December
31, 1999 financial statements and is qualified in its entirety by reference to
such financial statements.
</LEGEND>
<MULTIPLIER>                                     1,000

                             
<PERIOD-TYPE>                                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               DEC-31-1999
<CASH>                                         144,400
<SECURITIES>                                    20,900
<RECEIVABLES>                                   58,700
<ALLOWANCES>                                     4,400
<INVENTORY>                                      5,100
<CURRENT-ASSETS>                               272,800
<PP&E>                                       2,077,500
<DEPRECIATION>                                 500,400
<TOTAL-ASSETS>                               1,978,000
<CURRENT-LIABILITIES>                          134,800
<BONDS>                                        371,200
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        15,600
<OTHER-SE>                                   1,225,400
<TOTAL-LIABILITY-AND-EQUITY>                 1,978,000
<SALES>                                              0
<TOTAL-REVENUES>                               363,700
<CGS>                                                0
<TOTAL-COSTS>                                  250,800
<OTHER-EXPENSES>                               109,400
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              19,300
<INCOME-PRETAX>                                  5,200
<INCOME-TAX>                                    (2,900)
<INCOME-CONTINUING>                              6,700
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     6,700
<EPS-BASIC>                                        .05
<EPS-DILUTED>                                      .05