<ARTICLE> 5
<LEGEND> 
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE JUNE 30,
1996 CONSOLIDATED BALANCE SHEET AND THE CONSOLIDATED STATEMENT OF INCOME FOR THE
SIX-MONTH PERIOD ENDED JUNE 30, 1996, AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS AND THE FOOTNOTES THERETO.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                                DEC-31-1996
<PERIOD-START>                                   JAN-01-1996
<PERIOD-END>                                     JUN-30-1996
<CASH>                                               266,435
<SECURITIES>                                          25,878
<RECEIVABLES>                                      1,997,961
<ALLOWANCES>                                          60,563
<INVENTORY>                                                0
<CURRENT-ASSETS>                                   3,189,125 
<PP&E>                                            14,244,714
<DEPRECIATION>                                     4,315,809
<TOTAL-ASSETS>                                    19,303,837
<CURRENT-LIABILITIES>                              3,080,056
<BONDS>                                            7,123,055
<COMMON>                                             507,098
<PREFERRED-MANDATORY>                                      0
<PREFERRED>                                                0
<OTHER-SE>                                         4,683,608
<TOTAL-LIABILITY-AND-EQUITY>                      19,303,837  
<SALES>                                                    0            
<TOTAL-REVENUES>                                   5,035,316    
<CGS>                                                      0
<TOTAL-COSTS>                                      3,559,567    
<OTHER-EXPENSES>                                           0         
<LOSS-PROVISION>                                      14,896   
<INTEREST-EXPENSE>                                   198,918   
<INCOME-PRETAX>                                      692,890   
<INCOME-TAX>                                         284,670  
<INCOME-CONTINUING>                                  408,220  
<DISCONTINUED>                                             0    
<EXTRAORDINARY>                                            0        
<CHANGES>                                                  0    
<NET-INCOME>                                         408,220
<EPS-PRIMARY>                                           0.83
<EPS-DILUTED>                                           0.00