20261026Tariff Advice No. INT-TAG-26-04 - Cover Letter.pdf

RECEIVED
October 26, 2026
IDAHO PUBLIC
UTILITIES COMMISSION
AINTERMOUNTAIN
GAS COMPANY
A Subsidiary of MDU Resources Group,Inc.
In the Community to Serve'
October 26, 2026
Monica Barrios-Sanchez
Commission Secretary
Idaho Public Utilities Commission
P.O. Box 83720
Boise, ID 83720-0074
RE: INT-TAG-26-04, Intermountain Gas Company
Dear Ms. Barrios-Sanchez:
Enclosed for filing with this Commission is a copy of Intermountain Gas Company's ("Company")
proposed revisions to Rate Schedule FT.
The proposed revisions to Rate Schedule FT reflect new ordinance numbers for the cities listed in the
table below.The table also provides an overview of the executed agreements, which are attached.
City Ordinance Date Date Start Date End Date Term
No. Approved Approved
by City by
Company
Nampa 4949 10/5/2026 10/21/2026 10/21/2026 10/20/2046 20 Years
Payette 1575 7/7/2026 7/7/2026 7/7/2026 7/6/2036 10 Years
Rupert 26-501 6/9/2026 7/17/2026 7/17/2026 7/16/2046 20 Years
The franchise fee for each city remains unchanged at three percent.
The Company requests that the proposed revisions to Rate Schedule FT become effective December 1,
2026.
If you have any questions, please feel free to contact Arabella Aragon Blomstedt at 701-970-9743.
Sincerely,
/s/Michael Parvinen
Michael Parvinen
Director, Regulatory Affairs
Intermountain Gas Company
555 S. Cole
Boise, Idaho 83709
[e-mail]