EXHIBIT 11 CROWN CENTRAL PETROLEUM CORPORATION AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE (thousands of dollars except per share amounts) Three Months Ended Six Months Ended June 30 June 30 1997 1996 1997 1996 Primary and Fully Diluted Earnings Per Share Net income (loss) applicable to $ 7,907 $3,012 $8,631 $ common shares (9,998 ) Shares outstanding as reported at the beginning of the period 9,901,4 9,924, 9,983, 80 250 180 9,952,950 Restricted shares held by the Company at the beginning or the period (168,000 (277,500 (249,700 ) ) ) (255,300 ) Weighted average effect of 1,000 shares of common stock issued in June 1997 333 167 Weighted average effect of 7,300 shares of common stock issued in March 1996 4,867 Weighted average effect of 13,559 shares of common stock issued in April 1996 13,559 6,780 Weighted average effect of 4,730 share of common stock issued in May 1996 3,153 1,576 Weighted average effect of 1,000 shares of common stock issued in June 1996 333 167 Weighted average number of common shares outstanding, at period end 9,733,8 9,663, 9,733, 13 795 647 9,711,040 Net income (loss) per common $ .82 $ .31 $ .89 $ share (1.03 )