Exhibit 11 OIL-DRI CORPORATION OF AMERICA Computation of Weighted Average Number of Shares Outstanding Average Shares- (Weighted Number Number of Shares)Number of Shares Weighted of Days Quarter End Period Days Outstanding Shares As Adjusted October 31, 08/01/96 to 55 6,736,451 370,504,805 1996 09/24/96 09/25/96 to 1 6,733,951 6,733,951 09/25/96 09/26/96 to 1 6,717,551 6,717,551 09/26/96 09/27/96 to 3 6,710,451 20,131,353 09/29/96 09/30/96 to 1 6,708,451 6,708,451 09/30/96 10/01/96 to 1 6,705,251 6,705,251 10/01/96 10/02/96 to 1 6,702,251 6,702,251 10/02/96 10/03/96 to 12 6,701,751 80,421,012 10/14/96 10/15/96 to 1 6,698,451 6,698,451 10/15/96 10/16/96 to 1 6,695,751 6,695,751 10/16/96 10/17/96 to 1 6,690,251 6,690,251 10/17/96 10/18/96 to 11 6,678,051 73,458,561 10/28/96 10/29/96 to 3 6,670,051 20,010,153 10/31/96 92 618,177,7 6,719,324 92 Assuming exercise of options reduced by the number of shares which could have been purchased with the proceeds from exercise of such options. 1,380 6,720,704 October 31, 08/01/95 to 8 6,901,322 55,210,576 1995 08/08/95 08/09/95 to 63 6,841,322 431,003,286 10/10/95 10/11/95 to 1 6,814,922 6,814,922 10/11/95 10/12/95 to 20 6,812,922 136,258,440 10/31/95 92 629,287,224 6,840,079 Assuming exercise of options reduced by the number of shares which could have been purchased with the proceeds from exercise of such options. 0 6,840,079