SIOUX FALLS, S.D., Jan. 25, 2012 /PRNewswire/ -- NorthWestern Corporation, d/b/a NorthWestern Energy, (NYSE: NWE) today announced that it will host an investor conference call on Thursday, Feb. 16, 2012, at 2:00 p.m. Eastern Time (1:00 p.m. Central Time) to review its financial results for the year ended December 31, 2011. The Company also plans to issue a news release detailing its 2011 financial results the morning of Feb. 16, 2012, before the market opens.

The conference call will be webcast live on the Internet at http://www.northwesternenergy.com under the "Investor Information" heading. To listen, go to the site at least 10 minutes in advance of the call to register. An archived webcast will be available shortly after the call.

A telephonic replay of the call will be available beginning at 6:00 p.m. ET on Feb. 16, 2012, through March 16, 2012, at 800-475-6701, access code 235153.

About NorthWestern Energy

NorthWestern Energy is one of the largest providers of electricity and natural gas in the Upper Midwest and Northwest, serving approximately 665,000 customers in Montana, South Dakota and Nebraska. More information on NorthWestern Energy is available on the Company's website at www.northwesternenergy.com.

SOURCE NorthWestern Corporation