EXHIBIT 99.1 (WPS RESOURCES CORPORATION LETTERHEAD) FOR RELEASE: July 22, 1998 For additional information, see attached table or contact: Ralph G. Baeten, Treasurer, WPS Resources Corporation (920) 433-1449 WPS RESOURCES CORPORATION ------------------------- ANNOUNCES SECOND QUARTER FINANCIAL RESULTS ------------------------------------------ Green Bay, WI -- Second quarter basic and diluted earnings per average share of common stock of WPS Resources Corporation ("WPSR") for the three months ended June 30, 1998, were $0.41 compared with $0.40 for the corresponding period in 1997, an increase of 2.5%. Net income for the three months ended June 30, 1998 and 1997, was $9.9 million and $9.6 million, respectively. Earnings on common stock at Wisconsin Public Service Corporation ("WPSC"), WPSR's principal subsidiary, were $11.4 million for the three months ended June 30, 1998, and $11.2 million for the same period in 1997. "Warmer than normal weather contributed to higher electric sales and increased earnings at WPSR for the second quarter of 1998," stated Dan P. Bittner, Vice President and Chief Financial Officer of WPSR. //MORE// Financial Results Page 2 July 22, 1998 WPSR operating revenues were $219.6 million in the second quarter of 1998 compared with $191.4 million in the second quarter of 1997, an increase of 14.8%. Electric utility revenues at WPSC increased $6.8 million due primarily to increased energy prices paid by wholesale and interruptible buy-through customers during a period of abnormally warm weather in the latter part of the second quarter of 1998. Also included in 1998 second quarter electric revenues are $3.8 million of surcharge revenues related to recovery of the deferred costs of the 1997 steam generator repairs at the Kewaunee Nuclear Power Plant ("Kewaunee") which were offset by a charge to nuclear maintenance expense. WPSC is the operator and 41.2% owner of Kewaunee. Partially offsetting the increase in revenue was a $1.0 million refund as the result of a Federal Energy Regulatory Commission settlement related to open access transmission tariff rates. Gas utility revenues decreased $14.9 million as a result of reduced sales and mild weather in the first half of the second quarter of 1998. Also contributing to the decrease in gas utility revenues was a $7.5 million refund from ANR Pipeline Company which WPSC passed on to its gas customers. This refund was also credited to gas purchases. Nonregulated energy revenues increased $36.4 million due primarily to increased gas sales at WPS Energy Services, Inc. ("ESI"), WPSR's energy marketing subsidiary. //MORE// Financial Results Page 3 July 22, 1998 Explanation of WPSR Earnings Per Share Changes Between Quarters Ended June 30, 1998 and June 30, 1997 DOLLAR IMPACT IN EARNINGS PER MILLIONS SHARE IMPACT (Before Tax) (After Tax) Increase in Electric Utility Margin $7.4 $0.19 Decrease in Gas Utility Margin (1.9) (0.05) Net Increase in Nonregulated Margins 0.4 0.01 Increase in Maintenance Expenses (2.2) (0.06) Decrease in Other Income (4.0) (0.10) Change in Other Items 0.8 0.02 Total Earnings Per Share Impact $0.01 The primary reasons for the increase in WPSR earnings in the second quarter of 1998 were higher electric utility margins due to a 137.1% increase in cooling degree days and higher nonregulated gas and electric margins as a result of increased sales. Partially offsetting these increases in earnings were lower gas utility margins due to less sales, and an increase in nuclear maintenance expenses due to recognition of the 1997 deferred expenses for Kewaunee steam generator repairs. Also offsetting the increases in earnings was a reduction in other income in the second quarter of 1998 compared with the second quarter of 1997 which reflected the gain from sales of nonutility property of $2.7 million. Year-to-date basic and diluted earnings per average share of common stock of WPSR were $1.13 compared with $1.16 for the corresponding period in 1997. Operating revenues for the six-month period ending June 30, 1998, were $496.4 million and net //MORE// Financial Results Page 4 July 22, 1998 income for the period was $27.0 million. Operating revenues for the six-month period ending June 30, 1997, were $454.4 million and net income for the period was $27.8 million. Year-to-date earnings on common stock at WPSC were $29.3 million for 1998 and $31.2 million for 1997. The primary reasons for the decrease in earnings at WPSR were a decrease in other income due to the gain from sales of nonutility property which had occurred in the second quarter of 1997 and a decrease in utility gas margins. Partially offsetting these decreases in earnings were increased electric utility margins as a result of increased prices during a period of abnormally warm weather in the latter part of the second quarter of 1998, a decrease in other operating expenses, and an increase in the nonregulated gas margin. //MORE// Financial Results Page 5 July 22, 1998 Explanation of WPSR Earnings Per Share Changes Between Six Months Ended June 30, 1998 and June 30, 1997 DOLLAR IMPACT IN EARNINGS PER MILLIONS SHARE IMPACT (Before Tax) (After Tax) Increase in Electric Utility Margin $4.8 $0.12 Decrease in Gas Utility Margin (2.5) (0.06) Net Increase in Nonregulated Margins 1.4 0.03 Increase in Depreciation and Decommissioning Expenses (2.3) (0.06) Increase in Maintenance Expenses (2.7) (0.07) Decrease in Other Operating Expenses 2.6 0.07 Decrease in Other Income (2.8) (0.07) Change in Other Items 0.4 0.01 Total Earnings Per Share Impact $(0.03) Basic and diluted earnings per average share of common stock of WPSR for the twelve months ended June 30, 1998, were $2.22 compared with $1.76 for the twelve months ended June 30, 1997, an increase of 26.1%. //END// WPS RESOURCES CORPORATION EARNINGS ANALYSIS (THOUSANDS, EXCEPT PER SHARE AMOUNTS) QUARTER ENDED % YEAR-TO-DATE % YEAR ENDED % JUNE 30 CHANGE JUNE 30 CHANGE JUNE 30 CHANGE 1998 1997 1998 1997 1998 1997 REVENUES $219,620 $191,360 14.8% $496,429 $454,373 9.3% $920,396 $879,662 4.6% OPERATING EXPENSES 200,090 175,740 13.9% 445,964 405,483 10.0% 818,732 794,035 3.1% ------- ------- ------- ------- ------- ------- OPERATING INCOME 19,530 15,620 25.0% 50,465 48,890 3.2% 101,664 85,627 18.7% OTHER INCOME/(DEDUCTIONS) 1,641 5,782 -71.6% 4,186 7,246 -42.2% 9,377 5,927 58.2% ------- ------- ------- ------- ------- ------- INCOME BEFORE INTEREST AND TAXES 21,171 21,402 -1.1% 54,651 56,136 -2.6% 111,041 91,554 21.3% INTEREST EXPENSE 6,106 6,187 -1.3% 12,222 12,705 -3.8% 25,920 25,654 1.0% INCOME TAXES 4,408 4,866 -9.4% 13,893 14,069 -1.3% 29,094 20,868 39.4% PREFERRED STOCK DIVIDENDS OF SUBSIDIARY 778 778 0.0% 1,556 1,556 0.0% 3,111 3,111 0.0% ------- ------- ------- ------- ------- ------- NET INCOME $ 9,879 $ 9,571 3.2% $ 26,980 $27,806 -3.0% $ 52,916 $ 41,921 26.2% ======= ======= ======= ======= ======= ======= AVERAGE SHARES OF COMMON STOCK 23,858 23,875 -0.1% 23,860 23,878 -0.1% 23,864 23,882 -0.1% EARNINGS PER SHARE $0.41 $0.40 2.5% $1.13 $1.16 -2.6% $2.22 $1.76 26.1% HEATING DEGREE DAYS 828 1,249 -33.7% 4,069 5,130 -20.7% 7,038 8,370 -15.9% COOLING DEGREE DAYS 166 70 137.1% 166 70 137.1% 351 292 20.2%