Dominion Energy has completed the sale of its US natural gas utility Questar Gas and its associated company Wexpro to Enbridge for approximately $4.3bn.

The deal consideration includes the assumption of debt and customary closing adjustments.

The transaction was signed in September 2023. It forms part of a $14bn agreement signed between Enbridge and Dominion involving two other natural gas distribution companies.

Questar Gas' infrastructure includes more than 33,500km of natural gas distribution and transmission pipelines, and a liquefied natural gas (LNG) storage facility to enhance system reliability.

Wexpro supplies natural gas to Questar Gas under a cost-of-service agreement.

Enbridge said that Questar Gas will operate in Utah under the name Enbridge Gas Utah, in Idaho as Enbridge Gas Idaho and in Wyoming as Enbridge Gas Wyoming.

Enbridge closed the acquisition of Ohio natural gas utility East Ohio Gas for $6.6bn in March 2024.

The acquisition of the Public Service Company of North Carolina by Enbridge is expected to close later this year subject to receipt of the required regulatory approvals.

Enbridge gas distribution and storage executive vice-president and president Michele Harradence said: “We are excited to welcome another strong gas utility to Enbridge. Questar Gas and Wexpro enhance the scale and breadth of our existing low-risk utility business model and support our long-term dividend growth profile by providing stable, predictable cash flows.

“We welcome Questar Gas and Wexpro employees into the Enbridge family of companies and look forward to building long-term productive relationships with all of their stakeholders in Utah, Wyoming and Idaho.”