FILE - This Feb. 9, 2016, file photo shows an ice-covered ConocoPhillips sign at the Colville-Delta 5, or as it's more commonly known, CD5, drilling site on Alaska's North Slope. (AP Photo/Mark Thiessen, File)

ANCHORAGE, Alaska (AP) — A federal appeals court has sided with conservation and Indigenous groups by ordering work to stop at a major oil project on Alaska’s North Slope. The Anchorage Daily News reported that the decision Saturday by the 9th U.S. Circuit Court of Appeals will stop on-the-ground work for the winter at the Willow project operated by ConocoPhillips Co. in the National Petroleum Reserve-Alaska. The move comes in a lawsuit from groups arguing that the Trump administration didn’t follow environmental laws before approving the project. ConocoPhillips didn’t immediately say whether it plans to appeal the work stoppage.