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about northwestern energy

NorthWestern Energy Facts:

  • NorthWestern Corporation d/b/a NorthWestern Energy is an investor-owned utility and one of the largest providers of electricity and natural gas in the northwest quadrant of the United States.
  • We serve approximately 650,000 customers ­ 388,000 electric and 262,000 natural gas ­ in Montana, South Dakota and Nebraska.
  • Classified as a "mid-sized" utility by most industry standards, our service territory size is one of the largest in the country.
  • The foundation of NorthWestern´s energy business dates back to 1923, with the start of the utility operations in a few communities in South Dakota and Nebraska.
  • Our electric system serves 297 communities and surrounding rural areas covering two-thirds of Montana, eastern South Dakota, and Yellowstone National Park in Wyoming.
  • Our natural gas system serves 169 communities and surrounding rural areas in Montana, South Dakota and central Nebraska.
  • NorthWestern Energy has approximately 1,350 full-time employees.
  • Our corporate headquarters is in Sioux Falls, S.D., with operational headquarters in Butte, Mont., and Huron, S.D.
  • As of May 1, 2008, NorthWestern Corporation d/b/a NorthWestern Energy (NYSE: NWE) began trading on the New York Stock Exchange.

NorthWestern Energy provides electric and/or natural gas services to 349 cities in the western two-thirds of Montana, eastern South Dakota and central Nebraska. We have offices in the following locations:

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northWestern Energy Service areas