1 KEY ENERGY GROUP, INC. COMPUTATION OF PER SHARE EARNINGS THREE MONTHS ENDED DECEMBER 31, 1996 AND 1995 Three Months Ended Three Months Ended December 31, 1996 December 31, 1995 --------------------------------------------- Fully- Fully- (Thousands, except per share amounts) Primary Diluted Primary Diluted - ---------------------------------------------------------------------------------------------------- Net Income and Adjusted Earnings: Net Income before income taxes and minority interest ................................... $ 3,022 $ 3,022 $ 1,155 $ 1,155 Effect of interest on debentures ......................... - 975 - - ------- ------- ------- ------- Adjusted net income before income taxes and minority interest ............................... 3,022 3,997 1,155 1,155 ======= ======= ======= ======= Net Income ............................................... $ 2,043 $ 2,043 $ 768 $ 768 Effect of interest on convertible debentures, net of tax effect ....................... - 649 - - ------- ------- ------- ------- Adjusted net income ...................................... 2,043 2,692 768 768 ======= ======= ======= ======= Weighted Average Shares and Share Equivalents Outstanding: Weighted average shares outstanding (as reported) ........ 10,850 10,850 6,914 6,914 Common Share equivalents issuable under stock option plans .................................. 497 525 - - Common share equivalents issuable on assumed conversion of WellTech warrants ..................... 287 319 - - Common share equivalents issuable on assumed conversion of convertible debentures ................ - 5,333 - - Weighted average shares and share equivalents outstanding ............................. 11,634 17,027 6,914 6,914 Earning per Share: Net income before income taxes and minority interest ............................... $ 0.26 $ 0.24 $ 0.17 $ 0.17 Net income ............................................... $ 0.18 $ 0.16 $ 0.11 $ 0.11 2 KEY ENERGY GROUP, INC COMPUTATION OF PER SHARE EARNINGS SIX MONTHS ENDED DECEMBER 31, 1996 AND 1995 Six Months Ended Six Months Ended December 31, 1996 December 31, 1995 ---------------------------------------------- Fully- Fully- (Thousands, except per share amounts) Primary Diluted Primary Diluted - ----------------------------------------------------------------------------------------------------- Net Income and Adjusted Earnings: Net Income before income taxes and minority interest ................................... $ 5,418 $ 5,418 $ 2,224 $ 2,224 Effect of interest on debentures ......................... - 1,950 - - ------- ------- ------- ------- Adjusted net income before income taxes and minority interest ............................... 5,418 7,368 2,224 2,224 ======= ======= ======= ======= Net Income ............................................... $ 3,597 $ 3,597 $ 1,494 $ 1,494 Effect of interest on convertible debentures, net of tax effect ....................... - 1,297 - - ------- ------- ------- ------- Adjusted net income ...................................... 3,597 4,894 1,494 1,494 ======= ======= ======= ======= Weighted Average Shares and Share Equivalents Outstanding: Weighted average shares outstanding (as reported) ........ 10,635 10,635 6,914 6,914 Common Share equivalents issuable under stock option plans .................................. 433 525 - - Common share equivalents issuable on assumed conversion of WellTech warrants ..................... 218 320 - - Common share equivalents issuable on assumed conversion of convertible debentures ................ - 5,333 - - Weighted average shares and share equivalents outstanding ............................. 11,286 16,813 6,914 6,914 Earning per Share: Net income before income taxes and minority interest ............................... $ 0.48 $ 0.44 $ 0.32 $ 0.32 Net income ............................................... $ 0.32 $ 0.29 $ 0.22 $ 0.22