EXHIBIT 11-1 PENNSYLVANIA ENTERPRISES, INC. Statement Re Computation of Per Share Earnings for the Three and Six Month Periods Ended June 30, 1997 and 1996 Three Months Ended Six Months Ended 1997 1996 1997 1996 Income (loss) before subsidiary's preferred stock dividends $ 469,000 $ (93,000) $ 8,874,000 $ 7,516,000 Subsidiary's preferred stock dividends 318,000 383,000 671,000 1,020,000 Net income (loss) $ 151,000 $ (476,000) $ 8,203,000 $ 6,496,000 Earnings (loss) per share of common stock $ .02 $ (.05) $ .85 $ .60 Computations of additional common shares outstanding Average shares of common stock 9,643,642 10,088,268 9,629,606 10,825,160 Incremental common shares applicable to options, based on the daily average market price 58,349 17,102 51,908 15,306 Average common shares as adjusted 9,701,991 10,105,370 9,681,514 10,840,466 Average shares of common stock 9,643,642 10,088,268 9,629,606 10,825,160 Incremental common shares applicable to options, based on the more dilutive of daily average or ending market price 62,827 18,996 50,341 16,578 Average common shares fully diluted 9,706,469 10,107,264 9,679,947 10,841,738 Earnings (loss) per share of common stock Average common shares as adjusted $ .02 $ (.05) $ .85 $ .60 Average common shares fully diluted $ .02 $ (.05) $ .85 $ .60