A federal judge in California has sided with the federal government in a closely watched fight over the Santa Ynez pipeline system, rejecting the state’s attempt to block an order requiring Sable Offshore to keep the system operating under the Defense Production Act. The decision gives the Trump administration an early win in a dispute that sits at the intersection of emergency federal power, energy infrastructure, and state environmental oversight.

At the center of the controversy is whether California regulators can effectively countermand a federal directive issued in the name of energy security.