<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE CONSOLIDATED BALANCE SHEET AND THE CONSOLIDATED STATEMENT OF INCOME
FILED AS PART OF THE FORM 10-Q AND IN QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FORM 10-Q.
</LEGEND>
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          SEP-30-1998
<PERIOD-START>                             OCT-01-1997
<PERIOD-END>                               MAR-31-1998
<CASH>                                              85
<SECURITIES>                                         0
<RECEIVABLES>                                      887
<ALLOWANCES>                                        22
<INVENTORY>                                        407
<CURRENT-ASSETS>                                 1,610
<PP&E>                                           8,996
<DEPRECIATION>                                   4,461
<TOTAL-ASSETS>                                   4,535
<CURRENT-LIABILITIES>                            1,120
<BONDS>                                          2,254
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           125
<OTHER-SE>                                       2,476
<TOTAL-LIABILITY-AND-EQUITY>                     7,160
<SALES>                                          2,443
<TOTAL-REVENUES>                                 2,443
<CGS>                                            1,423
<TOTAL-COSTS>                                    1,423
<OTHER-EXPENSES>                                    53
<LOSS-PROVISION>                                     3
<INTEREST-EXPENSE>                                  79
<INCOME-PRETAX>                                    428
<INCOME-TAX>                                       147
<INCOME-CONTINUING>                                281
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       281
<EPS-PRIMARY>                                     2.59
<EPS-DILUTED>                                     2.53