Exhibit 11 CASEY'S GENERAL STORES, INC. Computation of Per Share Earnings Three Months Ended January 31, 1998 1997 ---- ---- BASIC EARNINGS PER SHARE Weighted average number of shares outstanding 52,545,746 52,450,412 ---------- ---------- Net income $ 7,362,944 5,536,435 ---------- ---------- Basic earnings per common share $ .14 .11 ---------- ---------- DILUTIVE EARNINGS PER SHARE Weighted average number of common and common equivalent shares: Weighted average number of shares outstanding 52,545,746 52,450,412 ---------- ---------- Shares applicable to stock options 313,176 111,658 --------- ---------- 52,858,922 52,566,070 ---------- ---------- Net Income $ 7,362,944 5,536,435 ---------- ---------- Dilutive earnings per common and common equivalent share $ .14 .11 ---------- ---------- CASEY'S GENERAL STORES, INC. Computation of Per Share Earnings Nine Months Ended January 31, 1998 1997 BASIC EARNINGS PER SHARE Weighted average number of shares outstanding 52,525,046 52,450,412 ---------- ---------- Net income $28,711,540 23,312,272 ---------- ---------- Basic earnings per common share $ .55 .44 --------- ---------- DILUTIVE EARNINGS PER SHARE Weighted average number of common and common equivalent shares: Weighted average number of shares outstanding 52,525,046 52,450,412 Shares applicable to stock options 313,176 123,910 ---------- ---------- 52,838,222 52,574,322 ---------- ---------- Net Income $28,711,540 23,312,272 ---------- ---------- Dilutive earnings per common and common equivalent share $ .54 .44 ---------- ----------