Intermountain Gas Company files increase in prices as part of annual PGA

BOISE, ID – August 6, 2021 – Intermountain Gas Company filed its annual purchased gas cost adjustment (PGA) application with the Idaho Public Utilities Commission to change its prices by an average increase of 9.6% or approximately $24.2 million. If approved, the increase would be effective Oct. 1, 2021.

The primary reason for the proposed increase is a forecasted increase in gas commodity costs for the upcoming year. Demand has rebounded more quickly than supply from the pandemic. Because the price of natural gas is a pass-through charge directly to its customers, Intermountain’s earnings will not increase because of the proposed change in prices and revenues.

If approved, residential customers would see an increase of $3.63, or 9.0%, per month based on average weather and usage. Commercial customers, on average, would see an increase of $20.56, or 12%, per month.

“The economic rebound, coupled with the increased demand by natural gas fired electric generation because of higher summer temperatures, is increasing the commodity price,” said Scott Madison, executive vice president, business development and gas supply.

Intermountain Gas urges all customers to use energy wisely. For more information about the company’s energy efficiency program and available rebates for installing high efficiency equipment, visit Conservation tips, information on government payment energy assistance and programs to help consumers level out their energy bills over the year can be found on the company’s website

The PGA application is filed each year to ensure the costs Intermountain incurs on behalf of its customers are reflected in its sales prices. The request is a proposal and is subject to public review and approval by the PUC. A copy of the application is available for review at the commission, its homepage, as well as the company’s website Written comments regarding the application may be filed with the commission. Customers may also subscribe to the commission’s RSS feed to review periodic updates via email.

Intermountain Gas Company is a natural gas distribution company serving approximately 391,000 residential, commercial and industrial customers in 76 communities in southern Idaho. Intermountain is a subsidiary of MDU Resources Group, Inc., a Fortune 500 company and member of the S&P MidCap 400 and the S&P HighYield Dividend Aristocrats indices, and is Building a Strong America® by providing essential products and services through its regulated energy delivery and construction materials and services businesses. For more information about MDU Resources, see the company’s website at For more information about Intermountain, visit

Media Contact: Mark Hanson at 701-530-1093 or [email protected].