8-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of report (Date of earliest event reported): June 30, 2005

OTTER TAIL CORPORATION

(Exact name of registrant as specified in its charter)

Minnesota	0-00368	41-0462685
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)
215 South Cascade Street, P.O. Box 496, Fergus Falls, MN		56538-0496
(Address of principal executive offices)		(Zip Code)
Registrant’s telephone number, including area code: (866) 410-8780

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

TABLE OF CONTENTS

	Item 7.01 Regulation FD Disclosure
	Item 9.01 Financial Statement and Exhibits
Signature
EXHIBIT INDEX
Press Release

Item 7.01 Regulation FD Disclosure

     On June 30, 2005 Otter Tail Corporation completed the sale of its subsidiary Midwest Information Systems, Inc. to Arvig Enterprises, Inc. Arvig Enterprises, Inc. is a full-service telecommunications company headquartered in Perham, MN, serving communities in West Central and Central Minnesota. A press release issued on July 1, 2005 related to this sale is furnished herewith as Exhibit 99.1.

Item 9.01 Financial Statement and Exhibits

     (c)  Exhibits

     99.1       Press Release issued July 1, 2005

Signature

     Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	OTTER TAIL CORPORATION
Date: July 5, 2005	By /s/ George A. Koeck
	George A. Koeck
	Corporate Secretary and General Counsel

2

EXHIBIT INDEX

Exhibit	Description of Exhibit
99.1	Press release, dated July 1, 2005

3

EX-99.1

Exhibit 99.1

NEWS RELEASE

Otter Tail Corporation Contacts:
Amy Richardson/Communications, (701) 451-3580 or Loren Hanson/Shareholder Services, (218) 739-8481
Arvig Communication Systems Contact: Carmen McCullough, (218) 346-8161

For Immediate Release: July 1, 2005 Dateline: Fergus Falls, Minnesota

Sale of Midwest Information Systems Completed

Officials at Otter Tail Corporation announced today the completed sale of its telecommunications business, Midwest Information Systems, to Arvig Enterprises, Inc. in a cash-for-stock transaction. Otter Tail Corporation expects the sale of Midwest Information Systems will result in an after-tax gain estimated to be in the range of $.37 to $.42 per share. The closing of the transaction followed approval of the sale by the Minnesota Public Utilities Commission. Robert W. Baird & Co. acted as the financial advisor in the marketing process of the sale. Midwest Information Systems is based in Parkers Prairie, Minnesota, and includes Midwest Telephone Company and Data Video Systems in Parkers Prairie, Osakis Telephone Company in Osakis and Peoples Telephone Company in Bigfork.

Arvig Enterprises, Inc. is the parent company of Arvig Communication Systems (ACS), a full-service telecommunications provider based in Perham, Minnesota. In addition to providing voice, video and data services, ACS also offers cellular phones and service, business phone systems, web development services and more. For information on the company, visit www.arvig.com.

Otter Tail Corporation has interests in diversified operations that include an electric utility, plastics, manufacturing, health services, food ingredient processing and other businesses. Otter Tail Corporation stock trades on NASDAQ under the symbol OTTR. The latest investor and corporate information is available at www.ottertail.com. Corporate offices are located in Fergus Falls, Minnesota, and Fargo, North Dakota.

Forward-looking Statements
Forward-looking statements in this news release are made under the Safe Harbor provisions of the Private Securities Litigation Reform Act of 1995. These statements are based on management’s current expectations and are subject to uncertainty and changes in circumstances. Actual results may differ materially from these expectations due to a number of factors including, but not limited to, the corporation’s ongoing involvement in diversification efforts, the timing and scope of deregulation and open competition, market valuations of forward energy contracts, growth of electric revenues, impact of the investment performance of the utility’s pension plan, changes in the economy, governmental and regulatory action, including investigations commenced by one or more agencies, weather conditions, fuel and purchased power costs, environmental issues, resin prices, the availability of off-grade potatoes due to poor growing conditions, a loss of key potato growers and other factors discussed from time to time in reports the corporation files with the Securities and Exchange Commission.