NorthWestern, once a holding company for several energy-related businesses, is now blowing in one direction only -- providing power and gas through regulated utilites. Through its NorthWestern Energy subsidiary, the company provides electricity and natural gas to about 661,000 customers in Montana, Nebraska, and South Dakota. In Montana it delivers electricity to approximately 335,000 customers in 187 communities and surrounding rural areas, 15 rural electric cooperatives, and in Wyoming to the Yellowstone National Park. NorthWestern delivers gas to 180,100 Montana customers. In Nebraska and South Dakota it sells natural gas to 85,5100 customers.