NorthWestern Energy Group, Inc. engages in the provision of electricity and natural gas to customers in Montana, South Dakota, Nebraska, and Yellowstone National Park. The company is headquartered in Sioux Falls, South Dakota and currently employs 1,585 full-time employees. The company went IPO on 2004-11-02. The firm operates through two segments: electric utility operations and natural gas utility operations. The electric utility operations segment includes the generation, purchase, transmission and distribution of electricity. The natural gas utility operations segment includes the production, purchase, transmission, storage, and distribution of natural gas. The company provides electricity and/or natural gas to approximately 787,000 customers in Montana, South Dakota, Nebraska, and Yellowstone National Park. Its operations in Montana and Yellowstone National Park are conducted through its subsidiary, NorthWestern Corporation, and its operations in South Dakota and Nebraska are conducted through its subsidiary, NorthWestern Energy Public Service Corporation. Its customer base consists of a mix of residential, commercial, and diversified industrial customers.
