<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MCDERMOTT
INTERNATIONAL'S JUNE 30, 2000 FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH STATEMENTS.

<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-END>                               JUN-30-2000
<CASH>                                          85,842
<SECURITIES>                                    54,679
<RECEIVABLES>                                  239,646
<ALLOWANCES>                                    48,607
<INVENTORY>                                    115,784
<CURRENT-ASSETS>                               562,277
<PP&E>                                       1,262,522
<DEPRECIATION>                                 894,376
<TOTAL-ASSETS>                               1,996,026
<CURRENT-LIABILITIES>                          613,251
<BONDS>                                        318,314
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        62,080
<OTHER-SE>                                     725,050
<TOTAL-LIABILITY-AND-EQUITY>                 1,996,026
<SALES>                                      1,078,999
<TOTAL-REVENUES>                             1,078,999
<CGS>                                        1,057,067
<TOTAL-COSTS>                                1,057,067
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              19,801
<INCOME-PRETAX>                                  7,076
<INCOME-TAX>                                     9,256
<INCOME-CONTINUING>                            (2,180)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (2,180)
<EPS-BASIC>                                     (0.04)
<EPS-DILUTED>                                   (0.04)