WPS Resources Corporation Increases Dividend on Common Stock

GREEN BAY, Wis., July 13 /PRNewswire-FirstCall/ -- The Board of Directors of WPS Resources Corporation today declared a quarterly dividend of $0.575 per share on common stock, payable on September 20, 2006, to shareholders of record August 31, 2006. This is an increase of one cent per share over the preceding quarter and is the 48th consecutive year the dividend has been increased. WPS Resources has paid dividends for 66 consecutive years.

WPS Resources Corporation:

WPS Resources Corporation is a holding company headquartered in Green Bay, Wisconsin. Its largest subsidiary is Wisconsin Public Service Corporation, a regulated electric and natural gas utility that generates and distributes energy in northeastern Wisconsin and an adjacent portion of Upper Michigan. Other major subsidiaries include Upper Peninsula Power Company, a regulated electric utility operating in the northern half of Michigan's Upper Peninsula; Michigan Gas Utilities Corporation, a regulated natural gas utility operating in lower Michigan; Minnesota Energy Resources Corporation, a regulated natural gas utility operating in Minnesota; and a nonregulated energy marketing subsidiary, WPS Energy Services, Inc. For more information, visit the company's web site at http://www.wpsr.com/ .