20240927Annual Fee Update 2024.pdf

RECEIVED
Friday, September 27, 2024
IDAHO PUBLIC
AINTERMOUNTAIN" UTILITIES COMMISSION
GAS COMPANY
A Subsidiary of MDU Resources Group,Inc.
In the Community to Serve®
September 27, 2024
Ms. Monica Barrios-Sanchez
Commission Secretary
Idaho Public Utilities Commission
P.O. Box 83720
Boise, ID 83720-0074
RE: Case No. INT-G-23-03 Annual Maintenance Fee Update
Dear Ms. Barrios-Sanchez:
This letter provides the annual update to the Maintenance Fee assessed to RNG producers. As outlined in Case
No. INT-G-23-03, Order No. 35891, Intermountain Gas Company("Intermountain"or"Company")proposed
an annual update to the Maintenance Fee as part of its Renewable Natural Gas ("RNG") Facilitation Plan
("RNG Facilitation Plan")that will be collected from non-utility RNG producers.
The updated Maintenance Fee Intermountain will charge non-utility RNG producers is $3,445 per month,
effective October 1, 2024, through September 30, 2025. As outlined in the RNG Facilitation Plan,
Intermountain will track actual expenses incurred and compare them to the revenue generated by the
Maintenance Fee. The applicable difference, if any,will be applied to next year's Maintenance Fee.
The existing Export Facilities Maintenance Fee ("EFMF") of$5,400 included in the Company's request to
update its RNG Facilitation Plan in Case No. INT-G-23-03 will remain unchanged. The Company will update
the EFMF in its next annual maintenance fee update when actual Operation and Maintenance ("O&M") costs
for a compressor station and other export facilities are available.
There are currently four RNG producers. Three legacy producers are reimbursing the Company for actual O&M
costs incurred, as outlined in their contracts. Intermountain will update the Commission once these three
contracts have been revised. The newest RNG producer's contract conforms with the Company's RNG
Facilitation Plan and all subsequent RNG producers requesting access to the Company's utility system will
enter into a contract to comply with the RNG Facilitation Plan.

INTERMOUNTAIN'
GAS COMPANY
A Subsidiary of MDU Resources Group,Inc.
In the Community to Serve®
If you should have any questions regarding this update, please don't hesitate to contact me at(208) 377-6015.
Sincerely,
Is/Lori A. Blattner
Lori A. Blattner
Director, Regulatory Affairs
Intermountain Gas Company
cc: Mark Chiles
Preston Carter