Exhibit 11.1 Castle Energy Corporation Statement of Computation of Earnings Per Share (Dollars in thousands, except per share amounts) (Unaudited) Three Months Ended December 31, ------------------------------------------------------------------ 2003 2002 ----------------------------- --------------------------- Basic Diluted Basic Diluted ------------ ------------ ----------- ---------- (Restated) (Restated) I. Shares Outstanding, Net of Treasury Stock Purchased and Options Exercised During the Period: Stock, net 6,592,884 6,592,884 6,592,884 6,592,884 ------------ ------------ ----------- ---------- Purchase of treasury stock (weighted) 6,592,884 6,592,884 6,592,884 6,592,884 II. Weighted Equivalent Shares: Assumed options and warrants exercised ------------ ------------ ----------- ---------- III. Weighted Average Shares and Equivalent Shares 6,592,884 6,592,884 6,592,884 6,592,884 ============ ============ =========== ========== IV. Net Income (Loss) ($ 1,248) ($ 1,248) ($ 13) ($ 13) ============ ============ =========== ========== V. Net Income (Loss) Per Share ($ .19) ($ .19) ($ .00) ($ .00) ============ ============ =========== ==========