New York, November 05, 2014 -- Moody's Investors Service, ("Moody's") affirmed the ratings of NorthWestern Corp. (NWE), following its regulatory approvals to complete the acquisition of certain hydro generating facilities. The ratings affirmed include NWE's A1 first mortgage bonds, A1 industrial revenue bonds, A3 senior unsecured bank credit facility, and P-2 commercial paper rating. The rating outlook for NWE is stable.

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