Our Natural Gas and Electric Service
NorthWestern Energy serves 341 communities in Montana, South Dakota and Yellowstone National Park with safe and reliable electricity. We serve natural gas to 202 communities in Montana, South Dakota and Nebraska.
Our Company
For more than 100 years, NorthWestern Energy has been committed to delivering safe, reliable and innovative energy solutions.
We serve gas and electric to customers in the western two-thirds of Montana and eastern South Dakota. We also have gas service in Nebraska and serve electricity to Yellowstone National Park.
NorthWestern owns and operates a diverse generation fleet of wind, water, natural gas and coal-fired resources and the high-voltage electric transmission system and distribution system. We also own and operate natural gas production, transmission and distribution systems.
We serve gas and electric to customers in the western two-thirds of Montana and eastern South Dakota. We also have gas service in Nebraska and serve electricity to Yellowstone National Park.
NorthWestern owns and operates a diverse generation fleet of wind, water, natural gas and coal-fired resources and the high-voltage electric transmission system and distribution system. We also own and operate natural gas production, transmission and distribution systems.
Enriching Lives Through a Safe, Sustainable Energy Future
Enriching Lives Through a Safe, Sustainable Energy Future
NorthWestern Energy has provided reliable and affordable electricity and natural gas to customers in Montana, South Dakota and Nebraska for more than 100 years.
Our Commitment to Sustainability
Sustainability means meeting today’s needs while planning for tomorrow’s as well.
NorthWestern Energy at a glance
787,000
customers served across Montana, South Dakota, Nebraska and Yellowstone National Park
1,585
employees working across our service territory
58%
carbon-free electric generation
Our vision
Enriching lives through a safe sustainable energy future.
Our mission
Working together to provide safe, reliable and innovative energy solutions that create value for customers, communities, employees, and investors.
Our values
SERVICE: Safety, Excellence, Respect, Value, Integrity, Community, Environment
Our Hydro Facilities
Our carbon-free hydro system is the foundation of our energy generation portfolio in Montana. In 2024, nearly 34% of our electricity for Montana customers came from our hydro facilities.
Giving Back to Our Communities
NorthWestern Energy is committed to being a good corporate citizen of all the communities we serve. In 2024, we gave $2.3 million in charitable donations and community support.
Where Does Your Energy Come From?
We provide safe, reliable energy through a balanced mix of clean energy and traditional resources.
NorthWestern Energy welcoming Energy West employees and customers
Date: Jun 30, 2025
TYPE: News
FOR IMMEDIATE RELEASE:
Butte, Mont. – June 30, 2025 – NorthWestern Energy is proud to welcome 33,000 Energy West customers and 43 valued employees, more than half of these new team members are represented by NorthWestern’s labor union partners.
“We are excited to welcome the Energy West employees to the NorthWestern family,” said NorthWestern Energy President & CEO Brian Bird. “They will join various departments, including Customer Care, Operations, Technology, Finance, Safety, and Warehousing. In addition to welcoming new employees, we are also looking forward to serving Energy West and Cut Bank Gas customers.”
NorthWestern Energy announced the intent to acquire the assets of Energy West and Cut Bank Gas on July 30, 2024. Energy West and Cut Bank Gas customers will transition to NorthWestern Energy customers effective July 1, 2025. Existing Energy West and Cut Bank Gas rates will remain in place. Impacted Energy West and Cut Bank Gas customers have been sent notifications about the transition to NorthWestern Energy. Of the 33,000 Energy West and Cut Bank Gas customers who will become NorthWestern Energy customers, approximately 30,000 are existing NorthWestern Energy customers who will now receive a combined electric and gas bill from NorthWestern Energy. The remaining gas customers who are not NorthWestern Energy electric customers will receive a gas-only bill from NorthWestern.
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Visit Energy West Montana for more information.
NorthWestern Energy - Delivering a Bright Future
NorthWestern Energy, provides essential energy infrastructure and valuable services that enrich lives and empower communities while serving as long-term partners to our customers and communities. We work to deliver safe, reliable, and innovative energy solutions that create value for customers, communities, employees, and investors. We do this by providing low-cost and reliable service performed by highly-adaptable and skilled employees. We provide electricity and / or natural gas to approximately 787,000 customers in Montana, South Dakota, Nebraska, and Yellowstone National Park. Our operations in Montana and Yellowstone National Park are conducted through our subsidiary, NW Corp, and our operations in South Dakota and Nebraska are conducted through our subsidiary, NWE Public Service. We have provided service in South Dakota and Nebraska since 1923 and in Montana since 2002.
Media Contacts:
Brandy Powers
866-622-8081