<ARTICLE> 5 <LEGEND> This Schedule Contains Summary Financial Information Extracted From Form 10-Q For The Quarterly Period Ended September 30, 1997, And Is Qualified In Its Entirety By Reference To Such Financial Statements </LEGEND> <MULTIPLIER> 1,000,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> SEP-30-1997 <CASH> 1,485 <SECURITIES> 708 <RECEIVABLES> 5,858<F1> <ALLOWANCES> 0 <INVENTORY> 4,005 <CURRENT-ASSETS> 13,047 <PP&E> 51,615 <DEPRECIATION> 29,621 <TOTAL-ASSETS> 42,352 <CURRENT-LIABILITIES> 13,498 <BONDS> 5,786 <PREFERRED-MANDATORY> 0 <PREFERRED> 237 <COMMON> 347 <OTHER-SE> 11,084 <TOTAL-LIABILITY-AND-EQUITY> 42,352 <SALES> 33,749 <TOTAL-REVENUES> 34,811 <CGS> 25,058<F2> <TOTAL-COSTS> 30,349<F3> <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 459 <INCOME-PRETAX> 4,003 <INCOME-TAX> 1,860 <INCOME-CONTINUING> 2,143 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 2,143 <EPS-PRIMARY> 0 <EPS-DILUTED> 0 <FN> <F1>Includes Other Accounts In Addition To Notes and Accounts Receivable-Trade. <F2>Includes Other Expenses. <F3>Cost of Goods Sold and Other Expenses; Depreciation, Depletion and Amortization; Exploration Expenses, Including Dry Hole Costs and Impairment of Unproved Properties; Selling, General and Administrative Expenses; Purchased In-Process Research and Development; and Write-down of Assets and Related Costs. </FN>