Northwestern Energy Group, Inc. · NASDAQ:NWE

Northwestern Energy — Debt Investor Presentation (April 2006)

8 slides from Northwestern Energy's debt investor presentation, Apr 6, 2006

  1. Slide 1: Pollution Control Bond Refinancing Investor Presentation

    Western Pollution Control Bond Refinancing Investor Presentation April 2006 NEW STRENGTH. N NEW ENERGY

  2. Slide 2: Michael Hanson, President & CEO

    Michael Hanson President & CEO

  3. Slide 3: NorthWestern Energy Today

    NorthWestern Energy Today Utility Service Territ 628,500 customers = NWEC electric: 375,000 + NWEC gas: 253,500 Approximately 123,000 square miles of service territory in South Dakota, Montana and Nebraska Total Assets: “” $2,400 MIM Total Capitalization: (2 $1,480 MIM Total Employees: (111,353

  4. Slide 4: Business Overview

    Business Overview Regulated Operations Unregulated Operations | Northwestern Energy * Electric - Primarily consists ofa lease of + One ofthe largest providers of electrcty and natural gas 30% of Colstrip Unit 4, a 740 MW coal-fired inthe Upper Midwest and Northwest, serving | lant in Montana approxi

  5. Slide 5: Significant Accomplishments in 2005

    Significant Accomplishments in 2005 Operational Achievements ¢ Maintained high reliability service + Received ServiceOne Award for second consecutive year Financial Achievements * Gross margin ineresoel Ey 10.3% to $524 million during 2005 over 2004 reflecting gro’ in all four operating segments + O

  6. Slide 6: Significant Accomplishments in 2005

    Significant Accomplishments in 2005 Resolution of Significant Litigation ¢ Bankruptcy case has almost all unsecured claims resolved except Magten matters ¢ Settled prior shareholder securities class action and derivative cases within policy limits ¢ Netexit plan of reorganization confirmed resulting

  7. Slide 7: Purpose of the Refinancing

    Purpose of the Refinancing Reduction in interest costs

  8. Slide 8: Pollution Control Bond Financing

    [L OGO] Pollution Control Bond Financing Investor Presentation April 2006 [GRAPHIC] NEW STRENGTH. NEW STRATEGY. NEW ENERGY. Mi chael Hanson President & CEO No rthWestern Energy Today Utility Service Territory [GRAPHIC] • 628,500 customers • NWEC electric: 375,000 • NWEC gas: 253,500 • Approximately

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