<ARTICLE> 5
<MULTIPLIER> 1000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1994
<PERIOD-START>                             JAN-01-1994
<PERIOD-END>                               DEC-31-1994
<CASH>                                          29,075
<SECURITIES>                                     7,976
<RECEIVABLES>                                  492,560
<ALLOWANCES>                                    16,160
<INVENTORY>                                          0
<CURRENT-ASSETS>                               642,778
<PP&E>                                       2,688,277
<DEPRECIATION>                               1,478,560
<TOTAL-ASSETS>                               1,949,435
<CURRENT-LIABILITIES>                          697,085
<BONDS>                                              0
<COMMON>                                        39,898
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                     975,496
<TOTAL-LIABILITY-AND-EQUITY>                 1,949,435
<SALES>                                              0
<TOTAL-REVENUES>                             4,572,004
<CGS>                                                0
<TOTAL-COSTS>                                4,520,267
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 52,438
<INCOME-TAX>                                    32,878
<INCOME-CONTINUING>                             19,560
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    19,560
<EPS-PRIMARY>                                      .50
<EPS-DILUTED>                                      .50