Natural Gas

NorthWestern Energy's natural gas energy business includes production, storage, transmission and distribution in Montana, South Dakota and Nebraska.

Natural Gas Transmission & Storage

Our Service Territory

A map showing NorthWestern Energy's service territory in Montana, Nebraska and South Dakota.

Our Service Territory

NorthWestern Energy provides natural gas service to customers in Montana, South Dakota and Nebraska.

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Distribution

NorthWestern Energy has more than 7,800 miles of distribution pipeline serving 308,000 customers in Montana, Nebraska and South Dakota.
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Storage

NorthWestern Energy owns and operates natural gas storage fields and contracts with a firm natural gas storage service.
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South Dakota Natural Gas Expansion

NorthWestern Energy is excited to bring commercial and residential natural gas service to the quickly developing areas of South Sioux Falls - the Tea and Harrisburg areas.
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