<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MCDERMOTT
INTERNATIONAL'S DECEMBER 31, 1997 FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          MAR-31-1998
<PERIOD-END>                               DEC-31-1997
<CASH>                                         653,622
<SECURITIES>                                       131
<RECEIVABLES>                                  566,902
<ALLOWANCES>                                   107,292
<INVENTORY>                                    340,106
<CURRENT-ASSETS>                             1,971,370
<PP&E>                                       1,746,442
<DEPRECIATION>                               1,191,007
<TOTAL-ASSETS>                               4,572,430
<CURRENT-LIABILITIES>                        1,501,438
<BONDS>                                        623,152
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                      2,875
<COMMON>                                        56,186
<OTHER-SE>                                     601,732
<TOTAL-LIABILITY-AND-EQUITY>                 4,572,430
<SALES>                                      2,749,873
<TOTAL-REVENUES>                             2,749,873
<CGS>                                        2,587,789
<TOTAL-COSTS>                                2,587,789
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              63,121
<INCOME-PRETAX>                                268,212
<INCOME-TAX>                                    69,199
<INCOME-CONTINUING>                            199,013
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   199,013
<EPS-PRIMARY>                                     3.49
<EPS-DILUTED>                                     3.21