"A panel of federal judges last night tossed a lower court ruling that had frozen progress on the Keystone XL pipeline, giving a green light for construction to begin on the embattled project.
In light of a new presidential permit for the oil transport project, the 9th U.S. Circuit Court of Appeals vacated a November ruling and injunction issued by U.S. District Court for the District of Montana Judge Brian Morris. The lower court ruling was tied to the earlier State Department permit.
Keystone XL developer TransCanada Corp. — now TC Energy — and the federal government appealed Morris' decision in the 9th Circuit. They later asked the court to drop the case and thaw the construction freeze after President Trump issued a fresh permit for the pipeline.
The 9th Circuit last night granted their request to resume work on the pipeline, which would connect Albertan oil fields to oil refineries along the Gulf coast."
