<ARTICLE> 5
<LEGEND>
This  schedule  contains  summary  financial   information  extracted  from  the
consolidated  statement of earnings and the  consolidated  balance sheets and is
qualified in its entirety by reference to such financial statements.
</LEGEND>
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               MAR-31-2000
<EXCHANGE-RATE>                                      1
<CASH>                                          31,722
<SECURITIES>                                         0
<RECEIVABLES>                                  215,480
<ALLOWANCES>                                    21,272
<INVENTORY>                                     39,326
<CURRENT-ASSETS>                               295,325
<PP&E>                                       2,202,855
<DEPRECIATION>                                 929,594
<TOTAL-ASSETS>                               1,970,923
<CURRENT-LIABILITIES>                          249,197
<BONDS>                                        513,997
<COMMON>                                        27,164
<PREFERRED-MANDATORY>                           26,462
<PREFERRED>                                          0
<OTHER-SE>                                     757,682
<TOTAL-LIABILITY-AND-EQUITY>                 1,970,923
<SALES>                                        355,782
<TOTAL-REVENUES>                               433,695
<CGS>                                          246,279
<TOTAL-COSTS>                                  315,916
<OTHER-EXPENSES>                                31,798
<LOSS-PROVISION>                                 3,028
<INTEREST-EXPENSE>                              12,124
<INCOME-PRETAX>                                 70,829
<INCOME-TAX>                                    29,790
<INCOME-CONTINUING>                             41,039
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    41,039
<EPS-BASIC>                                     1.51<F1>
<EPS-DILUTED>                                     1.50<F2>
<FN>
<F1>   EPS - Primary is EPS Basic per SFAS 128
<F2>   EPS - Fully Diluted is EPS - Diluted per SFAS 128
</FN>