The Big Sandy Mountaineer -

Butte, Mont. – October 3, 2016 – NorthWestern Energy has filed an application to increase its natural gas delivery service and production rates in Montana. The application, filed with the Montana Public Service Commission, also seeks to permanently place two natural-gas production properties in northcentral Montana into its rate base.

The overall increase in delivery services and production charges is 7.96 percent, or approximately $10.9 million. But the overall impact on customer bills varies by customer type. For a typical residential customer using 100 therms of natural gas, the tota...