EXHIBIT 11 McDERMOTT INTERNATIONAL, INC. STATEMENT RE COMPUTATION OF PER SHARE EARNINGS (LOSS) FOR THE THREE FISCAL YEARS ENDED MARCH 31, 1997 (In thousands, except shares and per share amounts) PRIMARY AND FULLY DILUTED 1997 1996 1995 ------------ ------------ ------------ Income (loss) before cumulative effect of accounting change $ (206,105) $ 20,625 $ 10,876 Less dividend requirements of preferred stock, Series C (8,266) (8,266) (8,266) - ---------------------------------------------------------------------------------------------- Income (loss) applicable to common stock (214,371) 12,359 2,610 Cumulative effect of accounting change - - (1,765) - ---------------------------------------------------------------------------------------------- Net income (loss) for primary computation $ (214,371) $ 12,359 $ 845 ============================================================================================== Weighted average number of common shares outstanding during the year 54,706,394 54,223,051 53,645,256 Common stock equivalents of stock options and stock appreciation rights based on "treasury stock" method - 149,033 103,133 - ---------------------------------------------------------------------------------------------- Weighted average number of common and common equivalent shares outstanding during the year for primary computation 54,706,394 54,372,084 53,748,389 ============================================================================================== Earnings (loss) per common and common equivalent share: (1) Income before cumulative effect of accounting change $ (3.92) $ 0.23 $ 0.05 Accounting change - - (0.03) - ---------------------------------------------------------------------------------------------- Net income (loss) $ (3.92) $ 0.23 $ 0.02 ============================================================================================== (1) Earnings (loss) per common and common equivalent share assuming full dilution are the same for the fiscal years presented.