1 EXHIBIT 11 Statement Re Computation of Per Share Earnings OHM CORPORATION COMPUTATION OF PER SHARE EARNINGS (In Thousands, Except Per Share Data) Years Ended December 31, 1994 1993 1992 ---- ---- ---- PRIMARY: Average Shares Outstanding 15,582 12,261 12,051 Net effect of dilutive stock options and warrants-- based on the treasury stock method - 245 - --------- --------- --------- Total 15,582 12,506 12,051 ======= ====== ======= Net Income (loss) ($7,616) $4,407 ($4,269) ======= ====== ======= Per Share Amount $ (0.49) $ 0.35 $ (0.35) ======== ======= ======== FULLY DILUTED: Average Shares Outstanding 15,582 12,261 12,051 Net effect of dilutive stock options and warrants-- based on the treasury stock method - (1) 426 (2) - (1) ---------- --------- --------- Total 15,582 12,687 12,051 ====== ====== ====== Net Income (loss) ($7,616) $4,407 ($4,269) ======= ====== ======= Per Share Amount $ (0.49) $ 0.35 $ (0.35) ======== ======= ======== <FN> (1) Fully dilutive effect of stock options and warrants on per share amounts for the year ended December 31, 1994 and 1992 were antidilutive. Accordingly, fully diluted per share amounts were not presented in the Company's consolidated statements of operations. (2) Fully dilutive effect of stock options and warrants on per share amounts for the year ended December 31, 1993 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.