<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FORM 10-Q
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS
</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>                                         1157535
<SECURITIES>                                         0
<RECEIVABLES>                                  2147255
<ALLOWANCES>                                   (46586)
<INVENTORY>                                     914117
<CURRENT-ASSETS>                               4379460
<PP&E>                                         9315445
<DEPRECIATION>                               (6157159)
<TOTAL-ASSETS>                                 9207136
<CURRENT-LIABILITIES>                          2839599
<BONDS>                                              0
<PREFERRED-MANDATORY>                           763120
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                     4468804
<TOTAL-LIABILITY-AND-EQUITY>                   9207136
<SALES>                                        1189322
<TOTAL-REVENUES>                               4212055
<CGS>                                           817640
<TOTAL-COSTS>                                  2363960
<OTHER-EXPENSES>                                548005
<LOSS-PROVISION>                                  7922
<INTEREST-EXPENSE>                               35463
<INCOME-PRETAX>                                 446987
<INCOME-TAX>                                     79402
<INCOME-CONTINUING>                             367585
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    367585
<EPS-PRIMARY>                                     1.50
<EPS-DILUTED>                                     1.50