1 EXHIBIT 11(a) NATIONAL CONVENIENCE STORES INCORPORATED AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE Three Months Ended March 31, ------------------------------- 1995 1994 ----------- ----------- Primary Earnings (Loss) Per Share - --------------------------------- Net Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ (596,000) $(1,527,000) =========== =========== Average Common and Common Stock Equivalents: Average shares outstanding . . . . . . . . . . . . . . . . . . . 6,050,000 6,011,000 Common stock equivalents - assumed exercise of options (1) . . . - - ----------- ----------- Average Common and Common Stock Equivalents . . . . . . . . . 6,050,000 6,011,000 =========== =========== Primary Loss Per Share . . . . . . . . . . . . . . . . . . . . . . . $ (0.10) $ (0.25) =========== =========== Fully Diluted Earnings (Loss) Per Share - --------------------------------------- Net Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ (596,000) $(1,527,000) =========== =========== Average Common and Common Stock Equivalents: Average shares outstanding . . . . . . . . . . . . . . . . . . . 6,050,000 6,011,000 Common stock equivalents - assumed exercise of options (1) . . . . - - ----------- ----------- Average Common and Common Stock Equivalents . . . . . . . . . . 6,050,000 6,011,000 =========== =========== Fully Diluted Loss Per Share . . . . . . . . . . . . . . . . . . . . $ (0.10) $ (0.25) =========== =========== (1) Common stock equivalents were antidilutive for the three month periods ended March 31, 1995 and 1994. 29