<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FORM 10-Q
FOR THE QUARTERLY PERIOD ENDED JUNE 30, 1999 OF CONOCO INC. AND CONSOLIDATED
SUBSIDIARIES. THIS SCHEDULE IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIALS STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                             252
<SECURITIES>                                         0
<RECEIVABLES>                                    1,210
<ALLOWANCES>                                         0
<INVENTORY>                                        858
<CURRENT-ASSETS>                                 2,602
<PP&E>                                          22,240
<DEPRECIATION>                                  11,043
<TOTAL-ASSETS>                                  15,891
<CURRENT-LIABILITIES>                            3,360
<BONDS>                                          4,086
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             6
<OTHER-SE>                                       4,325
<TOTAL-LIABILITY-AND-EQUITY>                    15,891
<SALES>                                         11,563
<TOTAL-REVENUES>                                11,664
<CGS>                                            6,887<F1>
<TOTAL-COSTS>                                   11,220<F2>
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 150
<INCOME-PRETAX>                                    294
<INCOME-TAX>                                        97
<INCOME-CONTINUING>                                197
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       197
<EPS-BASIC>                                        .31
<EPS-DILUTED>                                      .31
<FN>
<F1>INCLUDES OTHER EXPENSES
<F2>COST OF GOODS SOLD AND OTHER OPERATING EXPENSES; SELLING, GENERAL AND
ADMINISTRATIVE; EXPLORATION EXPENSE; DEPRECIATION, DEPLETION AND AMORTIZATION;
AND TAXES OTHER THAN ON INCOME.
</FN>