Industry
Industrial Goods & Services Oil & Gas
Keywords
electricity natural gas energy efficiency customer service clean energy supply
NorthWestern Corporation owns NorthWestern Energy, a utility company that serves South Dakota, Nebraska, and Montana that is based in Sioux Falls. As of December 31, 2007, the company serves approximately 650,000 customers. read more
NorthWestern Corporation owns NorthWestern Energy, a utility company that serves South Dakota, Nebraska, and Montana that is based in Sioux Falls. As of December 31, 2007, the company serves approximately 650,000 customers. read more

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