# Dominion Questar

> Dominion Questar was the Salt Lake City-based natural gas group acquired by Dominion in 2016. Its businesses combined retail gas distribution, interstate transportation and storage, and Wexpro gas production. The former pipeline business passed to Williams in 2023; Enbridge acquired Questar Gas and Wexpro in 2024. This profile distinguishes the historical company from its operating successors.

- **Founded:** 1984
- **Headquarters:** Salt Lake City, United States
- **Products:** Questar Gas, Wexpro, Questar Pipeline, Magna LNG storage
- **Notable:** Wyoming-to-Utah gas pipeline completed in 1929 by predecessor operations., Established the Questar holding company in 1984., Completed the QEP separation in June 2010 while retaining Wexpro.

## Products & services

- **Questar Gas** — Regulated retail natural gas distribution in Utah, southwestern Wyoming and southeastern Idaho; acquired by Enbridge in 2024 and operated under state-specific Enbridge Gas brands.
- **Wexpro** — Gas reserve development and production for the utility under cost-of-service agreements; retained in the 2010 QEP separation and sold with Questar Gas in 2024.
- **Questar Pipeline** — Historical interstate gas transportation and storage business; sold to Southwest Gas in 2021, renamed MountainWest and acquired by Williams in 2023.
- **Magna LNG storage** — Successor utility facility operating since fall 2022, designed for 15 million gallons of LNG storage and 150,000 dekatherms per day of regasification.

## Achievements

- Wyoming-to-Utah gas pipeline completed in 1929 by predecessor operations.
- Established the Questar holding company in 1984.
- Completed the QEP separation in June 2010 while retaining Wexpro.
- 2012 headquarters received LEED Gold certification.
- Questar Gas served approximately 1.2 million customers with over 21,000 system miles at its 2024 acquisition.

## Latest updates

- **2026-10** — Utah docket 26-057-16 remained active, with October testimony and intervention filings concerning Enbridge Gas Utah’s application to include Piceance III properties as Wexpro II property. No final approval is asserted.
- **2024-06** — Dominion and Enbridge announced completion of the approximately US$4.3 billion Questar Gas and Wexpro sale; Enbridge filings place closing on May 31, 2024.
- **2023-02** — Williams completed its US$1.5 billion enterprise-value acquisition of MountainWest from Southwest Gas.

## Links

- Website: https://questar.com
- LinkedIn: https://www.linkedin.com/company/questar

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Profile page: https://yespress.io/dominion-questar
Published by YesPress — https://yespress.io
Last updated: 2026-10-23