UNITED STATES

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):  March 1, 2006

NorthWestern Corporation

(Exact name of registrant as specified in its charter)

Delaware	0-692	46-0172280
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

125 South Dakota Avenue
Sioux Falls, South Dakota	57104
(Address of principal executive offices)	(Zip Code)

(605) 978-2908

(Registrant’s telephone number, including area code)

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 (see General Instruction A.2. below):

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))

Item 2.02               Results of Operations and Financial Condition.

                On March 1, 2006, NorthWestern Corporation d/b/a NorthWestern Energy (NASDAQ: NWEC) (the “Company”) issued a press release discussing results for the year ended December 31, 2005, and reaffirming earnings guidance for fiscal year 2006.  The press release is included as Exhibit 99.1 hereto and is incorporated herein by reference.

                The information in this Current Report on Form 8-K provided under Item 2.02 shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section. The information provided under Item 2.02 in this Current Report shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing.

As discussed therein, the press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and, as such, may involve known and unknown risks, uncertainties and assumptions. These forward-looking statements relate to the Company’s current expectations and are subject to the limitations and qualifications set forth in the press release as well as in the Company’s other documents filed with the SEC, including, without limitation, that actual events and/or results may differ materially from those projected in such forward-looking statements.

Item 9.01.              Financial Statements and Exhibits.

                (c)

Exhibit No.	Description
99.1	Press Release dated March 1, 2006

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SIGNATURES

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 hereunto duly authorized.

NorthWestern Corporation
By:
	Thomas J. Knapp
	Vice President, General Counsel and Corporate Secretary

Date:  March 1, 2006

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Index to Exhibits

Exhibit No.	Description
99.1	Press Release dated March 1, 2006

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