Exhibit 12 SOUTH JERSEY GAS COMPANY Calculation of Ratio of Earnings from Continuing Operations To Fixed Charges Plus Preferred Security Dividend Requirements (In Thousands) Fiscal Year Ended December 31, -------------------------------------------------------------------- 12 Months Ended June 30, 2002 2001 2000 1999 1998 1997 -------------------- --------------------------------------------------------------------- Net Income * $ 21,864 $ 21,527 $ 21,855 $ 20,367 $ 14,884 $ 19,929 Federal and State Income Taxes 15,799 15,693 16,703 15,445 12,299 11,581 Fixed Charges ** 19,113 20,347 21,181 20,949 19,235 18,103 Preferred Securities - Dividends 3,058 3,062 3,074 3,084 3,088 2,102 ---------------------------------------------------------------------------------------- Sub-Total 22,171 23,409 24,255 24,033 22,323 20,205 ---------------------------------------------------------------------------------------- Capitalized Interest (353) (221) (24) (390) (167) (107) ---------------------------------------------------------------------------------------- Total Available for Coverage $ 59,481 $ 60,408 $ 62,789 $ 59,455 $ 49,339 $ 51,608 ======================================================================================== Total Available 2.7x 2.6x 2.6x 2.5x 2.2x 2.6x - ---------------------------------------- Fixed Charges and Preferred Security Dividends <FN> * Net Income before Discontinued Operations ** Fixed charges consist of interest charges (rentals are not material). </FN>