CHESAPEAKE UTILITIES CORPORATION AND SUBSIDIARIES EXHIBIT 11 COMPUTATION OF PRIMARY AND FULLY DILUTED EARNINGS PER SHARE For the Quarter Ended March 31, ------------------------ 1996 1995 ---- ---- Primary earnings per share calculation: Weighted average number of shares assuming primary dilution 3,760,378 3,672,036 ======================== Consolidated net income $4,649,009 $3,658,431 ======================== Total primary earnings per share $1.24 $1.00 ======================== Fully diluted earings per share calculation: Weighted average number of shares assuming primary dilution 3,760,378 3,672,036 Contingent shares 248,084 252,993 ------------------------ Weighted average number of shares assuming full dilution 4,008,462 3,925,029 ======================== Consolidated net income $4,649,009 $3,658,431 Interest on convertible debt 85,856 87,551 Less: Applicable federal income taxes 33,484 34,145 ------------------------ Adjusted net income $4,701,381 $3,711,837 ======================== Fully diluted earnings per share $1.17 $0.95 ========================