Dominion Energy is looking for a new buyer of its Questar Pipelines after a deal to sell the Rockies natural gas transmission and storage assets to an affiliate of Berkshire Hathaway Inc. was scuttled.


Dominion and Berkshire Hathaway Energy jointly announced the decision to terminate the deal on Monday, citing the “ongoing uncertainty associated with achieving clearance from the Federal Trade Commission under the Hart-Scott-Rodino Antitrust Improvements Act of 1976.”

The Questar system originally was included in the $9.7 billion transaction the two companies announced a year ago. The decision, they said, has no impact on that sale, which was completed in November 2020 and represented about 80% of the original transaction value.

Dominion’s existing financial guidance...