Exhibit 11: OIL-DRI CORPORATION OF AMERICA AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE (IN THOUSANDS EXCEPT FOR PER SHARE AMOUNTS) NINE MONTHS ENDED APRIL 30 --------------------- 2003 2002 -------- -------- Net income available to Stockholders (numerator) $ 2,607 $ 845 ------- ------- Shares Calculation (denominator): 5,599 5,614 Average shares outstanding - basic -- -- Effect of Dilutive Securities: -- -- Potential Common Stock relating to stock options 96 46 ------ ----- Average shares outstanding- assuming dilution 5,695 5,660 ====== ===== Earnings per share-basic $ 0.47 $0.15 ====== ===== Earnings per share-assuming dilution $ 0.46 $0.15 ====== =====