1 EXHIBIT 11 2 EXHIBIT 11 Statement Re Computation of Per Share Earnings OHM CORPORATION COMPUTATION OF PER SHARE EARNINGS (In Thousands, Except Per Share Data) Three Months Ended March 31, ---------------------- 1997 1996 --------- --------- PRIMARY: Average Shares Outstanding 27,044 26,686 Net effect of dilutive stock options and warrants-- based on the treasury stock method 46 9 ------ ------ Total 27,090 26,695 ====== ====== Net Income $1,438 $1,330 ====== ====== Per Share Amount $ 0.05 $ 0.05 ====== ====== FULLY DILUTED: (1) Average Shares Outstanding 27,044 26,686 Net effect of dilutive stock options and warrants-- based on the treasury stock method 46 9 ------ ------ Total 27,090 26,695 ====== ====== Net Income $1,438 $1,330 ====== ====== Per Share Amount $ 0.05 $ 0.05 ====== ====== (1) Fully dilutive effect of stock options and warrants on per share amounts for the three months ended March 31, 1997 and 1996, has not been presented in the statement of operations since any reduction of less than 3% in the aggregate need not be considered as dilution.