20250822Notice_of_Application_Order_No_36735.pdf

Office of the Secretary
Service Date
August 22,2025
BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
IN THE MATTER OF INTERMOUNTAIN ) CASE NO. INT-G-25-04
GAS COMPANY'S APPLICATION FOR )
AUTHORITY TO CHANGE ITS PRICES ) NOTICE OF APPLICATION
NOTICE OF MODIFIED
PROCEDURE
ORDER NO. 36735
On August 7,2025, Intermountain Gas Company("Company") applied to the Idaho Public
Utilities Commission ("Commission") requesting authority to implement new rate schedules,
effective October 1, 2025, which will increase its annualized revenues by $303,638, due to
increases in the Company's gas related costs ("Application"). If approved, the typical residential
customer's monthly bill would decrease by $0.06, or 0.03 percent. On average, large volume and
transport customers would see their bills increase between $435.10 and $649.24, or 5.06-11.3
percent, depending on their rate schedule.
With this Order,the Commission provides notice of the Company's Application and orders
that the Application be processed under Modified Procedure.
BACKGROUND
The Company's rates include a base-rate component and a gas-related cost,Purchased Gas
Cost Adjustment ("PGA"), component. The base-rate component is intended to cover the
Company's fixed costs to serve its customers and rarely change. The Company's PGA is a
Commission-approved mechanism that adjusts rates up or down to reflect changes in the
Company's costs to buy natural gas from suppliers—including changes in transportation, storage,
and other related costs. The Company defers these costs into its PGA account and then passes them
on to customers through an increase or decrease in rates.
In Order No. 26109, the Commission approved the Company's use of temporary pricing
for certain rate schedules to be determined by a PGA based on gas-related costs. The Company's
current temporary prices related to the cost of gas were approved in Order No. 36338 and are
effective from October 1, 2024, through September 30, 2025.
NOTICE OF APPLICATION
NOTICE OF MODIFIED PROCEDURE
ORDER NO. 36735 1

NOTICE OF APPLICATION
YOU ARE HEREBY NOTIFIED that the Company requests authority to pass through to
each of its customer classes: (1)costs incurred by the Company from firm transportation providers;
(2) increases in the Company's Weighted Average Cost of Gas; (3) newly determined customer
allocation of gas-related costs under the Company's PGA provision; (4) one year temporary
surcharges and credits related to natural gas purchases and interstate transportation expenses from
the Company's deferred gas cost accounts; (5) benefits from the Company's management of
storage and firm capacity rights on various pipeline systems; and(6)benefits related to the sale of
liquefied natural gas from the Company's Nampa, Idaho facility. Application at 4.
YOU ARE FURTHER NOTIFIED that the Company seeks authority to remove the
temporary surcharges and credits related to the cost of gas from the Company's present prices.Id.
YOU ARE FURTHER NOTIFIED that the Company represents the proposed changes to
its gas-related costs would result in a price decrease for the Company's RS, GS-I, IS-R, and IS-C
customer classes. Id.
YOU ARE FURTHER NOTIFIED that the Company represents the proposed changes to
its gas-related costs would result in a price increase for the Company's LV-1, T-3, and T-4
customer classes. Id.
YOU ARE FURTHER NOTIFIED that the Company requests that the filing requirement
for the Deferred Gas Cost Balance, Liquefied Natural Gas Sales Cost Benefit Analysis, and
Weighted Average Cost of Gas reports be maintained at a quarterly frequency.Id. at 12.
YOU ARE FURTHER NOTIFIED that the Application is available for public inspection
during regular business hours at the Commission's office. The Application is also available on the
Commission's website at www.puc.idaho.gov. Click on the"NATURAL GAS"icon, select"Open
Cases," and click on the case number as shown on the front of this document.
YOU ARE FURTHER NOTIFIED that all proceedings in this case will be held pursuant
to the Commission's jurisdiction under Title 61 of the Idaho Code, and that all proceedings in this
matter will be conducted pursuant to the Commission's Rules of Procedure, IDAPA 31.01.01.000
et seq.
NOTICE OF APPLICATION
NOTICE OF MODIFIED PROCEDURE
ORDER NO. 36735 2

NOTICE OF MODIFIED PROCEDURE
YOU ARE FURTHER NOTIFIED that the Commission has determined that the public
interest may not require a formal hearing in this matter, and that it will proceed under Modified
Procedure pursuant to the Commission's Rules of Procedure 201-204, IDAPA 31.01.01.201-.204.
The Commission notes that Modified Procedure and written comments have proven to be an
effective means for obtaining public input and participation.
YOU ARE FURTHER NOTIFIED that persons desiring to state a position on this
Application may file a written comment explaining why the person supports or opposes the
Application. Persons who would like a hearing must specifically request a hearing in their written
comments and explain why written comments alone are insufficient. Persons interested in filing
written comments, must do so by September 18, 2025. Comments must be filed through the
Commission's website or by e-mail unless computer access is unavailable. To comment
electronically, please access the Commission's website at http://www.puc.idaho.gov/. Click the
"Case Comment Form" and complete the form using the case number as it appears on the front of
this document.
To file by e-mail, persons must e-mail the comments to the Commission Secretary and all
parties at the e-mail addresses listed below. Persons submitting a comment by e-mail must provide
their name, address, and the Case Number under which they are commenting. Persons submitting
a comment by e-mail also acknowledge that submitting a comment in an open case constitutes a
public record under Idaho Code § 74-101(13), and all information provided by such person is
available for public and media inspection.
If computer access is unavailable, then comments may be mailed to the Commission and
the Parties at the addresses below.Persons submitting a comment by mail must provide their name,
address, and the Case Number under which they are commenting. Persons submitting a comment
by mail also acknowledge that submitting a comment in an open case constitutes a public record
under Idaho Code§74-101(13),and all information provided by such person is available for public
and media inspection.
NOTICE OF APPLICATION
NOTICE OF MODIFIED PROCEDURE
ORDER NO. 36735 3

For the Idaho Public Utilities For the Company:
Commission:
Commission Secretary Lori A. Blattner
Idaho Public Utilities Commission Director—Regulatory Affairs
P.O. Box 83720 Intermountain Gas Company
Boise, ID 83720-0074 P.O. Box 7608
secretary&puc.idaho.gov Boise, ID 83707
Lori.Blattner&int-a
Street Address for Express Mail: IGCRe ulatory(a),intgags.com
11331 W. Chinden Blvd. Preston N. Carter
Building 8, Suite 201-A Megann E. Meier
Boise, ID 83714 Givens Pursley LLP
601 W. Bannock St.
Boise, ID 83702
prestoncarter&givenspursle.
mem(agivenspurs ley.com
stephaniewkgivenspursley.com
YOU ARE FURTHER NOTIFIED that the Company must file any reply comments by
September 25, 2025.
YOU ARE FURTHER NOTIFIED that if no written comments or protests are received
within the time limit set, the Commission will consider this matter on its merits and enter its final
order without a formal hearing. If written comments are received within the time limit set, the
Commission will consider them and, in its discretion, may set the same for formal hearing.
ORDER
IT IS HEREBY ORDERED that this Application be processed under Modified Procedure.
Persons interested in submitting written comments must do so by September 18, 2025. The
Company must file any reply comments by September 25, 2025.
IT IS FURTHER ORDERED that parties comply with Order No. 35375, issued April 21,
2022. Generally, all pleadings should be filed with the Commission electronically and will be
deemed timely filed when received by the Commission Secretary.See Rule 14.02. Service between
parties should continue to be accomplished electronically when possible. However, voluminous
discovery-related documents may be filed and served on CD-ROM or a USB flash drive.
NOTICE OF APPLICATION
NOTICE OF MODIFIED PROCEDURE
ORDER NO. 36735 4

DONE by Order of the Idaho Public Utilities Commission at Boise, Idaho this 22°d day of
August 2025.
G
EDWARD LODGE, PRIODENT
1-L gr-"
R. HAMMOND JR., COMMISSIONER
DAYN HA IE, COMMISSIONER
ATTEST:
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NI/bAll'A a o nchez
Commission Secretary
I ALega1\GAS\INTG2504_PGA\orders\INTG2504_ntc_app_modj I.docx
NOTICE OF APPLICATION
NOTICE OF MODIFIED PROCEDURE
ORDER NO. 36735 5