Intermountain Gas Company
Intermountain Gas Company is a regulated natural gas distribution utility, privately held and a subsidiary of MDU Resources Group, serving more than 432,000 residential, commercial, and industrial customers across 74+ communities in southern Idaho under IPUC jurisdiction.
- Company typePrivate
- Founded1950
- HeadquartersBoise, United States
- Headcount101–250
- GTM typeB2B and B2C
- OfferingServices
What Intermountain Gas Company does
Intermountain Gas Company is a privately held, regulated natural gas distribution utility headquartered in Boise, Idaho, and a wholly-owned subsidiary of MDU Resources Group, Inc. (NYSE: MDU). Founded around 1950, the company distributes natural gas to more than 432,000 residential, commercial, and industrial customers across 74+ communities in southern Idaho, including the Boise/Treasure Valley and Snake River Plain regions. The franchise territory is regulated by the Idaho Public Utilities Commission (IPUC), which approves rate schedules and tariffs across residential (RS), general service (GS-1), and industrial/large-volume (LV-1, T-4) rate classes.
The company's revenue model is usage-based: customers pay a fixed Customer Charge plus a Per Therm Charge that recovers pass-through Cost of Gas (no margin) plus Distribution Costs. Cost of Gas flows through the utility, so gross margin and earnings are driven primarily by regulated distribution rates, customer additions, and weather-driven volume. Supporting the core distribution service, Intermountain Gas operates an Automated Meter Reading (AMR) system using ERT-equipped meters, and in December 2025 deployed Picarro's parts-per-billion methane leak detection technology across its vehicle fleet. Complementary offerings include an Energy Efficiency Rebate Program (since 2017, $3.3 million issued across roughly 6,000 applications and ~675,000 therms saved), Renewable Natural Gas Access Service for third-party RNG producers, Natural Gas Vehicles service, and customer-facing portals (customer.intgas.com, property portal, new installation requests). Customer support extends to Level Pay budgeting, LIHEAP, Project Share, and other low-income assistance programs.
Intermountain Gas has held the #1 J.D. Power customer satisfaction ranking among midsize Western U.S. residential natural gas utilities for three consecutive years (2023–2025), scoring 590 versus an industry average of 543. To sustain growth into the next decade, the company in May 2026 signed a precedent agreement with Williams Northwest Pipeline to secure 100,000 dekatherms per day of firm transportation capacity on the proposed Rockies Columbia Connector pipeline (in service early 2030). The company is governed as part of MDU Resources' utility portfolio under IPUC oversight, with 190 dedicated employees and an executive leadership team led by Chief Utility Officer Garret Senger.
Intermountain Gas Company firmographics
Firmographics- Name
- Intermountain Gas Company
- Legal name
- Intermountain Gas Company
- Website
- https://intgas.com
- Company type
- Private
- Founded year
- 1950
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Intermountain Gas Company is a regulated natural gas distribution utility, privately held and a subsidiary of MDU Resources Group, serving more than 432,000 residential, commercial, and industrial customers across 74+ communities in southern Idaho under IPUC jurisdiction.
- Ownership category
- akta.pro rank
Intermountain Gas Company industry classification
Industry- Product category
- Natural Gas Distribution
- NAICS
- Natural Gas Distribution (221210), Natural Gas Distribution (22121)
- SIC
- Natural Gas Transmisison & Distribution (4923), Gas & Other Services Combined (4932)
- akta.pro primary industry
- Regulated Natural Gas Utility (LDC) Customer Acquisition & Switching (EUAAADAA)
- akta.pro secondary industries
- Integrity Management Programs & Compliance (IMP, Risk Assessment, Regulatory Reporting) (TLAGALAE), Service Line Maintenance & Repair (Customer Laterals) (EUAJAMAC)
Keywords
Where Intermountain Gas Company is headquartered
LocationHeadquarters
- HQ city
- Boise
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Intermountain Gas Company business model
Business model- GTM type
- B2B and B2C
- Offering type
- Services
- Cost components
- Supply Chain, Infrastructure, Personnel, Operations, Others, Marketing or Sales
Revenue model
- Natural Gas Distribution Services: Intermountain Gas Company operates as a regulated utility generating revenue through the distribution and delivery of natural gas to residential, commercial, and industrial customers. Revenue is based on therms consumed with rates approved by the Idaho Public Utilities Commission (IPUC). Rates include a Customer Charge and Per Therm Charge covering Cost of Gas and Distribution Costs. The Cost of Gas is a pass-through to customers with no profit margin for the company.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Usage-based | Monthly | Residential Service (RS) - For customers using natural gas for residential purposes |
| Usage-based | Monthly | General Service (GS-1) - For commercial customers with requirements not exceeding 2,000 therms per day |
| Usage-based | Monthly | Industrial/Large Volume Service - For customers consuming at least 200,000 therms in a 12-month period |
| Other | Pay-as-you-go | Residential Appliance Rebates - Energy efficiency incentives for qualifying equipment |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels6 records
Intermountain Gas Company product offering
Product offeringCore offering
Intermountain Gas Company is a regulated natural gas utility that distributes and delivers natural gas to residential, commercial, and industrial customers across 74+ communities in southern Idaho, serving more than 432,000 customers. The company operates company-owned pipeline infrastructure with usage-based rates approved by the Idaho Public Utilities Commission, complemented by energy efficiency rebate programs, online account management, and customer assistance programs.
Product overview
Intermountain Gas Company is a regulated natural gas utility serving approximately 432,000 customers across 74+ communities in southern Idaho. The company operates as a subsidiary of MDU Resources Group, Inc. Its core offering is natural gas distribution and delivery across three customer segments: Residential (RS rate), Business/Commercial (GS-1 rate up to 2,000 therms/day), and Industrial (LV-1/T-4 for 200,000+ therms annually). Supporting the core distribution service, the company offers complementary products including: an Energy Efficiency Rebate Program (residential and commercial rebates for high-efficiency equipment), Renewable Natural Gas Access Service (for RNG producers), Natural Gas Vehicles service, and online portals for account management, property management, and new installations. Customer assistance programs include Level Pay budgeting, LIHEAP, Project Share, and Third-Party Notification. The utility is regulated by the Idaho Public Utilities Commission and operates under an Integrated Resource Plan for long-term capacity planning.
Differentiator
Problem solved
Functional benefit
Products and services
- Residential Natural Gas Service Natural gas distribution service for residential customers (RS rate schedule) covering heating, water heating, cooking, and appliances, billed via Customer Charge plus Per Therm Charge.
- Business/Commercial Natural Gas Service
Quantifiable outcome
- Customer satisfaction score of 590 vs 543 industry average in J.D. Power 2025 study - ranked #1 among midsize residential natural gas utilities in Western U.S.
- +2 more outcomes
Companies that use Intermountain Gas Company
Customer profileNamed customers3 records
Segments3 records
Ideal customer profiles3 records
Intermountain Gas Company technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration1 record
Feature2 records
Intermountain Gas Company partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core and minor.
- Williams Northwest Pipeline (Rockies Columbia Connector)coreIntermountain Gas Co. (IGC) signed a precedent agreement to secure firm transportation capacity on the proposed Rockies Columbia Connector (RCC) pipeline project. IGC contracted for 100,000 dekatherms per day of natural gas transportation capacity to meet growing energy demand across its Idaho service territory. The RCC project, being developed by Williams Northwest Pipeline, is expected to deliver approximately 275,000 dekatherms per day of natural gas through the Silver Spur Expansion into the Idaho market. Project anticipated in service early 2030.
- PicarrocoreIntermountain Gas installed Picarro's advanced leak detection technology in one of its vehicles, enabling crews to conduct leak surveys more efficiently with higher accuracy. The Picarro system measures methane in parts per billion (1,000 times more sensitive than traditional equipment measuring in parts per million), capable of detecting leaks down to one part per billion in ambient air while reducing false positives from naturally occurring methane.
- Gas Technology Institute (GTI)coreDecades-long membership supporting research efforts for pathways to 'green the gas' with Renewable Natural Gas (RNG) and Hydrogen, optimizing energy efficiency and renewables integration, and reducing methane and other greenhouse gas emissions. GTI delivers new technologies that expand natural gas supply and renewable energy, ensure safe and reliable infrastructure, and advance energy systems innovations.
- North American Natural Gas CollaborativeminorCollaborative of utilities from across North America working with manufacturers, distributors, and contractors to bring efficient new natural gas technologies to market, providing customer choice and access to most efficient new gas technologies such as gas heat pumps and gas heat pump water heaters.
- EPA Natural Gas Star Methane Challenge ProgramcoreFounding partner since March 2016, committed to apply best management practices across operations to mitigate methane emissions from excavation damages.
- Energy Policy InstituteminorSponsor of the Energy Policy Institute's annual Energy Policy Conference, a premier interdisciplinary forum examining energy policy issues including decarbonization, extreme weather and climate change, energy modernization, and energy system resilience.
- United Way of Treasure ValleyminorLong-standing support with employees allocating portions of paychecks. Intermountain Gas is a United Way of Treasure Valley Tenacious 25 Partner. Company raised $57,247 in 2022 campaign plus 605 food items for homeless children. Employees serve in various capacities including Campaign Coordinator and Cabinet Member.
- NeighborWorks BoiseminorSponsor for over 35 years. Company fields teams annually for Paint the Town and Rake Up Boise events. Supports through grants. Employees serve as volunteers and Board members.
Scale indicators8 records
Recent moves7 records
Expansion highlights6 records
Intermountain Gas Company competitors and assessment
Company assessmentDirect peers
- ONE Gas, Inc. Pure-play natural gas distribution utility serving Oklahoma, Kansas, and Texas. Closely aligned LDC-only operating model with similar rate-regulated structure and growth-via-rate-base expansion strategy.
- New Jersey Resources: Diversified energy holding company with regulated natural gas distribution subsidiary serving New Jersey customers. Comparable regulated LDC business with similar customer segmentation and clean energy program overlays.
- Spire Inc. Regulated natural gas distribution utility serving customers in Missouri, Alabama, and Mississippi. Comparable mid-size LDC with similar residential/commercial/industrial customer structure and weather-driven volume exposure.
- Chesapeake Utilities Corporation: Regulated natural gas distribution utility serving customers in Florida, Delaware, Maryland, and Pennsylvania. Comparable mid-size LDC with similar residential/commercial/industrial mix and a focus on energy efficiency programs.
- Southwest Gas Corporation: Regulated natural gas distribution utility serving customers in Arizona, Nevada, and California. Comparable as a Western U.S. LDC with similar residential/commercial/industrial mix and growth-driven service territory dynamics.
- Black Hills Energy: Regulated natural gas utility serving customers across multiple Western and Midwestern states. Comparable LDC business model with residential, commercial, and industrial rate classes and similar regulatory dynamics.
- Cascade Natural Gas Corporation: Pacific Northwest regulated natural gas utility serving Washington and Oregon, also a subsidiary of MDU Resources Group. Same parent and similar LDC operating model as Intermountain Gas Company.
- Northwest Natural Gas Company (NW Natural): Pacific Northwest regulated natural gas LDC serving residential, commercial, and industrial customers in Oregon and southwest Washington. Closely comparable in scale, customer mix, and regulatory operating model to Intermountain Gas Company.
Broad incumbents
- Atmos Energy Corporation: Largest natural gas distributor in the U.S. serving customers across the South and Midwest. Comparable regulated LDC business model at much larger scale; useful benchmark for operational practices and rate base economics.
- Avista Utilities: Diversified utility holding company with natural gas distribution operations in the Pacific Northwest (Idaho, Oregon, Washington). Overlaps with Intermountain's geography and gas LDC business but operates across multiple states and energy types.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Intermountain Gas Company social profiles
Digital presenceIntermountain Gas Company financial estimates
Financial estimateRevenue estimate
Valuation estimate
Intermountain Gas Company leadership team
Management profileNumber of profiles
Profiles12 records
Intermountain Gas Company funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Intermountain Gas Company M&A and investment
M&A and investmentM&A1 record
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Intermountain Gas Company
What does Intermountain Gas Company do?
Intermountain Gas Company is a regulated natural gas utility that distributes and delivers natural gas to residential, commercial, and industrial customers across 74+ communities in southern Idaho, serving more than 432,000 customers. The company operates company-owned pipeline infrastructure with usage-based rates approved by the Idaho Public Utilities Commission, complemented by energy efficiency rebate programs, online account management, and customer assistance programs.
Is Intermountain Gas Company a public or private company?
Intermountain Gas Company is a private company. It is classified as corporate owned and is currently operating.
When was Intermountain Gas Company founded?
Intermountain Gas Company was founded in 1950. It employs 101 to 250 people.
Where is Intermountain Gas Company based?
Intermountain Gas Company is headquartered in Boise, United States, in the North America region.
How does Intermountain Gas Company make money?
One revenue line is on record: natural Gas Distribution Services.
Who are Intermountain Gas Company's main competitors?
Direct peers on record are ONE Gas, Inc., New Jersey Resources, Spire Inc., Chesapeake Utilities Corporation, Southwest Gas Corporation, Black Hills Energy, Cascade Natural Gas Corporation and Northwest Natural Gas Company (NW Natural). Broad incumbents are Atmos Energy Corporation and Avista Utilities.
Does Intermountain Gas Company have an API?
No public API is recorded for Intermountain Gas Company.
What industry is Intermountain Gas Company in?
Intermountain Gas Company's product category is Natural Gas Distribution. Its primary akta.pro industry code is EUAAADAA, Regulated Natural Gas Utility (LDC) Customer Acquisition & Switching, with a secondary code of TLAGALAE, Integrity Management Programs & Compliance (IMP, Risk Assessment, Regulatory Reporting). Its NAICS code is 221210 and its SIC code is 4923.