(Washington) — Work on the Mountain Valley Pipeline came to a halt over the weekend following an order from the Federal Energy Regulatory Commission. The agency issued the stop work order a week after the Fourth U.S. Circuit Court of Appeals pulled a permit needed for construction in the National Forest.

The 300 miles pipeline is under construction to carry natural gas from Wetzel County, West Virginia to Pittsylvania County, Virginia. FERC ordered a halt to all work with the exception of what it considered measures necessary to land management and stabilization of the right of way and work areas.

A week ago, the federal judges vacated allowance from the U.S. Forest Service and Bureau of Land Management to allow for the pipeline to pass through just over three miles of the Jefferson National Forest.

Developers of the Mountain Valley Pipeline says the decision to halt work is disappointing, but add they are confident the two federal agencies will satisfy court requirements on the permits.