Exhibit 12(a) SOUTH JERSEY GAS COMPANY Calculation of Ratio of Earnings To Fixed Charges (IN THOUSANDS) Fiscal Year Ended December 31, -------------------------------------------------- 1998 1997 1996 1995 1994 -------------------------------------------------- Net Income* $17,911 $22,000 $19,389 $15,991 $11,200 Income Taxes, Net 12,256 11,559 10,627 9,278 5,881 Fixed Charges** 19,234 18,103 19,574 19,545 14,648 Capitalized Interest (167) (107) (114) (98) (120) -------------------------------------------------- Total Available for Coverage $49,234 $51,555 $49,476 $44,716 $31,609 ================================================== Total Available - ------------------------------ 2.6x 2.9x 2.5x 2.3x 2.2x Fixed Charges <FN> * Net Income before Dividends on Preferred Securities and a Cumulative Effect of a Change in Accounting Principle. ** Fixed charges consist of interest charges (rentals are not material). </FN> Exhibit 12(b) SOUTH JERSEY GAS COMPANY Calculation of Ratio of Earnings To Fixed Charges Plus Preferred Security Dividend Requirements (IN THOUSANDS) Fiscal Year Ended December 31, -------------------------------------------------- 1998 1997 1996 1995 1994 -------------------------------------------------- Net Income $14,822 $19,898 $19,215 $15,813 $11,017 Income Taxes, Net 12,256 11,559 10,627 9,278 5,881 Fixed Charges* 19,234 18,103 19,574 19,545 14,648 Preferred Securities - Dividends 3,089 2,102 174 178 183 -------------------------------------------------- Sub-Total 22,323 20,205 19,748 19,723 14,831 -------------------------------------------------- Capitalized Interest (167) (107) (114) (98) (120) -------------------------------------------------- Total Available for Coverage $49,234 $51,555 $49,476 $44,716 $31,609 ================================================== Total Available - ----------------------------------- 2.2x 2.6x 2.5x 2.3x 2.1x Fixed Charges <FN> * Fixed charges consist of interest charges (rentals are not material). </FN>