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, --------------------------- 2002 2001 ---- ---- Basic earnings per share - ------------------------ Weighted average number of shares outstanding 49,642,495 49,520,429 ============= ========== Net income $ 13,445 12,392 ============= ========== Basic earnings per common share $ .27 .25 ============= ========== Diluted earnings per share - -------------------------- Weighted average number of shares outstanding 49,642,495 49,520,429 Shares applicable to stock options 80,836 149,215 ------------- ---------- 49,723,331 49,669,644 ============= ========== Net Income $ 13,445 12,392 ============= ========== Diluted earnings per common share $ .27 .25 ============= ========== 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, --------------------------- 2002 2001 ---- ---- Basic earnings per share - ------------------------ Weighted average number of shares outstanding 49,634,279 49,509,795 ============= ========== Net income $ 25,636 25,100 ============= ========== Basic earnings per common share $ .52 .51 ============= ========== Diluted earnings per share - -------------------------- Weighted average number of shares outstanding 49,634,279 49,509,795 Shares applicable to stock options 90,478 141,514 ------------- ---------- 49,724,757 49,651,309 ============= ========== Net Income $ 25,636 25,100 ============= ========== Diluted earnings per common share $ .52 .51 ============= ==========