<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MCDERMOTT
INTERNATIONAL'S MARCH 31, 1998 FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
       
                                                                             
<PERIOD-TYPE>                                              12-MOS                  12-MOS
<FISCAL-YEAR-END>                                     MAR-31-1997             MAR-31-1996
<PERIOD-END>                                          MAR-31-1997             MAR-31-1996
<CASH>                                                    257,783                 238,663
<SECURITIES>                                               75,946                       0
<RECEIVABLES>                                             654,065                 555,912
<ALLOWANCES>                                              106,983                  98,863
<INVENTORY>                                               392,834                 534,857
<CURRENT-ASSETS>                                        1,834,327               1,724,538
<PP&E>                                                  1,764,300               1,890,103
<DEPRECIATION>                                          1,164,555               1,199,416
<TOTAL-ASSETS>                                          4,599,482               4,387,251
<CURRENT-LIABILITIES>                                   1,608,756               1,392,552
<BONDS>                                                   667,174                 576,256
<PREFERRED-MANDATORY>                                           0                       0
<PREFERRED>                                                 2,875                   2,875
<COMMON>                                                   54,937                  54,436
<OTHER-SE>                                                379,189                 627,209
<TOTAL-LIABILITY-AND-EQUITY>                            4,599,482               4,387,251
<SALES>                                                 3,150,850               3,244,318
<TOTAL-REVENUES>                                        3,150,850               3,244,318
<CGS>                                                   3,293,471               3,249,020
<TOTAL-COSTS>                                           3,293,471               3,249,020
<OTHER-EXPENSES>                                                0                       0
<LOSS-PROVISION>                                                0                       0
<INTEREST-EXPENSE>                                         95,100                  84,312
<INCOME-PRETAX>                                         (220,697)                  21,704
<INCOME-TAX>                                             (14,592)                   1,079
<INCOME-CONTINUING>                                     (206,105)                  20,625
<DISCONTINUED>                                                  0                       0
<EXTRAORDINARY>                                                 0                       0
<CHANGES>                                                       0                       0
<NET-INCOME>                                            (206,105)                  20,625
<EPS-PRIMARY>                                              (3.95)                    0.23
<EPS-DILUTED>                                              (3.95)                    0.23