Exhibit 12 SOUTH JERSEY INDUSTRIES, INC. Calculation of Ratio of Earnings from Continuing Operations to Fixed Charges (Before Income Taxes) (IN THOUSANDS) Fiscal Year Ended December 31, -------------------------------------------------------- 2002 2001 2000 1999 1998 -------------------------------------------------------- Net Income* $ 29,412 $ 26,869 $ 24,741 $ 21,962 $ 13,506 Income Taxes 20,404 19,295 18,711 16,418 11,703 Fixed Charges** 22,675 24,101 24,392 24,300 22,436 Capitalized Interest (1,941) (500) (26) (390) (167) -------------------------------------------------------- Total Available $ 70,550 $ 69,765 $ 67,818 $ 62,290 $ 47,478 ======================================================== Total Available - ------------------- 3.1x 2.9x 2.8x 2.6x 2.1x Fixed Charges * Net Income before Discontinued Operations. ** Includes interest and preferred securities dividend requirements of a subsidiary.