Exhibit 11 CASEY'S GENERAL STORES, INC. Computation of Per Share Earnings (Dollars in Thousands, Except Share and Per Share Amounts) Three Months Ended October 31, 1999 1998 ---- ---- Basic earnings per share Weighted average number of shares outstanding 52,737,129 52,648,329 ---------- ---------- Net income $ 12,662 12,627 ---------- --------- Basic earnings per common share $ .24 .24 ---------- --------- Diluted earnings per share Weighted average number of common shares: Weighted average number of shares outstanding 52,737,129 52,648,329 Shares applicable to stock options 236,262 210,091 ---------- ---------- 52,973,391 52,858,420 ---------- ---------- Net Income $ 12,662 12,627 ---------- ---------- Diluted earnings per common share $ .24 .24 ----------- ---------- Exhibit 11 CASEY'S GENERAL STORES, INC. Computation of Per Share Earnings (Dollars in Thousands, Except Share and Per Share Amounts) Six Months Ended October 31, 1999 1998 ---- ---- Basic earnings per share Weighted average number of shares outstanding 52,727,645 52,626,587 ---------- ---------- Net income $ 27,313 25,124 ---------- ---------- Basic earnings per common share $ .52 .48 ---------- ---------- Diluted earnings per share Weighted average number of common shares: Weighted average number of shares outstanding 52,727,645 52,626,587 Shares applicable to stock options 248,372 219,544 ---------- ---------- 52,976,017 52,846,131 ---------- ---------- Net Income $ 27,313 25,124 ---------- ---------- Diluted earnings per common share $ .52 .48 ---------- ----------