Protecting the Western Arctic from Oil and Gas Drilling

Earthjustice fought for years to protect special places in the northwestern corner of Alaska.

Regional Office / Program

Case Overview

Outside the industrialized oil fields of Prudhoe Bay, vast areas of relatively untouched wildlife habitat remain in Alaska’s Western Arctic.

This region includes the 23-million acre National Petroleum Reserve-Alaska, the largest unprotected block of land in the federal land system. The Reserve consists of varied ecosystems and habitats, from coastal lagoons to Arctic tundra and rugged mountains, supporting large populations of caribou, polar and grizzly bears, wolves, fish, and migratory birds.

It is also home for Teshekpuk Lake, one of the most important and sensitive wetland complexes in the circumpolar Arctic, and often referred to as the biological heart of the Western Arctic.

Earthjustice and our allies have worked hard to protect the unique wildlife and other resources of the Western Arctic.

Since 1998, Earthjustice has gone to court multiple times to protect this region from oil and gas leasing and its harmful effects on sensitive areas, including calving and insect-relief habitats for caribou, molting and nesting areas for various birds, and subsistence hunting and fishing grounds for local people. (See related case: “Challenging the Willow Oil & Gas Project in Alaska’s Arctic”)

The Reserve and the surrounding areas continue to be central to Earthjustice and our allies’ interests in Alaska. Oil and gas leasing and exploration activities are intensifying not only in certain parts of the Reserve but also on adjacent offshore areas in the Beaufort and Chukchi Seas. Meanwhile, the Arctic is undergoing significant changes due to warming climate, which is threatening sensitive Arctic species, habitats, ecosystems, and Alaska Native cultures.

Teshekpuk Lake.
Teshekpuk Lake is one of the most important and sensitive wetland complexes in the circumpolar Arctic. (Florian Schulz / visionsofthewild.com)

Case Updates

Two caribou with small antlers walk together on a snowy plain.
March 18, 2026 Press Release

Western Arctic Lease Sale Auctions Off More than a Million Acres of Ecologically Sensitive Lands for Oil and Gas Drilling

Vast natural areas, long protected from extraction, were included in 187 tracts that oil and gas companies bid on for oil development

Photos of Caribou taken in the Western Arctic in and around the Teshekpuk Lake area for Earthjustice. (Kiliii Yuyan for Earthjustice)
February 17, 2026 Press Release

Lawsuit Challenges Massive Oil and Gas Sale Over Harms to Western Arctic Public Lands and the Climate

Vast natural areas long protected from extraction will now be offered to oil companies for drilling

February 17, 2026 document

Western Arctic: Amended and Supplemented Complaint

The Center for Biological Diversity and Friends of the Earth U.S., represented by Earthjustice, are challenging the lease sale and the underlying management plan, or Integrated Activity Plan, that opens 18.5 million acres within the 23-million-acre Reserve to potential oil and gas drilling and infrastructure. The groups filed an amended and supplemented complaint in Alaska’s federal court that restarts a paused 2020 lawsuit from the first Trump administration.