UT 1,000 U.S.DOLLARS 6-MOS Jan-01-2000 Dec-31-1999 Jun-30-2000 1 PER-BOOK 1,062,675 1,168 170,792 62,393 105,320 1,402,348 95,588 177,876 225,868 499,332 0 51,189 297,219 10,000 0 45,000 0 0 73,414 419 425,775 1,402,348 400,199 20,716 342,391 363,107 37,092 16,718 53,810 13,309 40,501 1,555 38,946 77,000 11,776 110,171 0 0 F1 All of Wisconsin Public Service Corporation ("WPSC") common stock is controlled by WPS Resources Corporation which operates as a holding company. WPSC, as a subsidiary, does not calculate earnings per share. The earnings per share of WPS Resources Corporation for second quarter ended June 30, 2000 were $1.53 for both basic and diluted earnings per share calculations. All of Wisconsin Public Service Corporation ("WPSC") common stock is controlled by WPS Resources Corporation which operates as a holding company. WPSC, as a subsidiary, does not calculate earnings per share. The earnings per share of WPS Resources Corporation for second quarter ended June 30, 2000 were $1.53 for both basic and diluted earnings per share calculations.