Supreme Court Rules in Enbridge Line 5 Procedural Case

In a unanimous decision on April 22, 2026, the U.S. Supreme Court held that Enbridge’s Line 5 lawsuit in federal court was improperly removed to federal court, and returned the case to Michigan state court. The ruling in Enbridge Energy, LP v. Nessel (No. 24-783) affirms the Sixth Circuit. The underlying dispute involves Michigan’s efforts to shut down the portion of Enbridge’s Line 5 pipeline crossing the Straits of Mackinac. NPGA has actively supported continued operation of Line 5 for energy reliability and propane supply in the Midwest. This procedural loss for Enbridge does not resolve the merits of the Line 5 dispute, which continues in state court and through separate federal litigation. NPGA remains committed to advocating for safe, reliable energy infrastructure critical to propane delivery.

Questions? Contact Director of Regulatory Affairs and Associate General Counsel Kate Gaziano.