<TABLE> <S> <C>
<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.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<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
0
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)
</TABLE>