<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S CONDENSED CONSOLIDATED FINANCIAL STATEMENTS INCLUDED IN ITS QUARTERLY
REPORT ON FORM 10-Q FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2000 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-END>                               MAR-31-2000
<CASH>                                          20,185
<SECURITIES>                                         0
<RECEIVABLES>                                  461,488<F1>
<ALLOWANCES>                                    64,386<F2>
<INVENTORY>                                     31,787
<CURRENT-ASSETS>                               518,691
<PP&E>                                       1,856,758
<DEPRECIATION>                                 757,469
<TOTAL-ASSETS>                               1,992,795
<CURRENT-LIABILITIES>                          380,041
<BONDS>                                        756,057
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        11,038
<OTHER-SE>                                     631,992
<TOTAL-LIABILITY-AND-EQUITY>                 1,992,795
<SALES>                                        646,102
<TOTAL-REVENUES>                               646,927
<CGS>                                                0
<TOTAL-COSTS>                                  591,875
<OTHER-EXPENSES>                                25,336
<LOSS-PROVISION>                                     0<F3>
<INTEREST-EXPENSE>                              19,618
<INCOME-PRETAX>                                 10,098
<INCOME-TAX>                                     3,837
<INCOME-CONTINUING>                              6,261
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     6,261
<EPS-BASIC>                                       0.06
<EPS-DILUTED>                                     0.06
<FN>
<F1>EXCLUDES $5,942 OF LONG-TERM ACCOUNTS AND NOTES RECEIVABLE.
<F2>EXCLUDES $5,188 OF ALLOWANCE FOR DOUBTFUL LONG-TERM ACCOUNTS AND NOTES
RECEIVABLE.
<F3>INCLUDED IN TOTAL COSTS AND EXPENSES LINE.
</FN>