Exhibit 11.1A TANKNOLOGY ENVIRONMENTAL, INC. AND SUBSIDIARIES COMPUTATION OF EARNINGS (LOSS) PER COMMON SHARE for the Three Months Ended March 31, 1997 and 1996 (unaudited) 1997 1996 ------------ ------------ Computation of earnings per common share for the three months ended March 31: Net income (loss) applicable to common stock . $ (144,153) $ (343,119) ============ ============ Weighted average number of common shares outstanding .............................. 14,244,012 14,237,012 Common shares issuable under employee stock option plan ........................ -- -- Less shares assumed repurchased with proceeds -- -- ------------ ------------ Weighted average common shares outstanding 14,244,012 14,237,012 ============ ============ Net earnings (loss) per common share . $ (0.01) $ (0.02) ============ ============