<ARTICLE> 5
<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>                                         124,437
<SECURITIES>                                         0
<RECEIVABLES>                                  200,355
<ALLOWANCES>                                     2,315
<INVENTORY>                                     46,805
<CURRENT-ASSETS>                               446,753
<PP&E>                                       1,117,768
<DEPRECIATION>                                 398,704
<TOTAL-ASSETS>                               1,602,270
<CURRENT-LIABILITIES>                          585,802
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           499
<OTHER-SE>                                     731,322
<TOTAL-LIABILITY-AND-EQUITY>                 1,602,270
<SALES>                                              0
<TOTAL-REVENUES>                               562,892
<CGS>                                                0
<TOTAL-COSTS>                                  551,862
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                   825
<INTEREST-EXPENSE>                               3,993
<INCOME-PRETAX>                                 26,031
<INCOME-TAX>                                    11,402
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    14,629
<EPS-BASIC>                                       0.40<F1>
<EPS-DILUTED>                                     0.40
<FN>
<F1>EPS Primary represents basic net income per share.
</FN>