Wisconsin Public Service (WSPBP) 10-Q 2004 Q1 Quarterly report

Exhibit 32.1

Written Statement of the Chief Executive Officer and Chief Financial Officer
Pursuant to 18 U.S.C. Section 1350

Solely for the purposes of complying with 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, we, the undersigned Chief Executive Officer and Chief Financial Officer of WPS Resources Corporation (the "Company"), hereby certify, based on their knowledge, that the Quarterly Report on Form 10-Q of the Company for the quarter ended March 31, 2004 (the "Report") fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934 and that information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Larry L. Weyers
Larry L. Weyers
Chairman, President and Chief Executive Officer

/s/ Joseph P. O'Leary ______________
Joseph P. O'Leary
Senior Vice President and Chief Financial Officer

Date: May 6, 2004

This certification accompanies this Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not be deemed filed by WPS Resources Corporation for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.

A signed original of this written statement required by Section 906 has been provided to WPS Resources Corporation and will be retained by WPS Resources Corporation and furnished to the Securities and Exchange Commission or its staff upon request.