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

February 5, 2026 document

60-Day Notice of Intent to Sue: Endangered Species Act Violations Related to the Integrated Activity Plan for the National Petroleum Reserve-Alaska

Conservation groups represented by Earthjustice issued a letter to the Bureau of Land Management and to Secretary of the Interior Doug Burgum providing the required 60-day notice of the groups’ intent to sue federal agencies for violating the Endangered Species Act. The letter alerts agencies that the groups plan to sue to protect threatened polar bears from oil and gas leasing and extraction in the Western Arctic.

A petroleum drill site operates in Alaska’s Western Arctic, near Lake Teshekpuk.
January 28, 2026 Press Release

Court Denies Request to Halt Western Arctic Oil Exploration

The ruling allows ConocoPhillips to proceed with its plans for winter exploration program

January 27, 2026 document

Court Order Denying Request for Western Arctic Exploration Preliminary Injunction

A federal court ruling allows ConocoPhillips to continue its winter seismic and exploration drilling program in the Western Arctic despite concerns about the harm it would cause to wildlife, sensitive habitats and the subsistence and cultural values of local Alaska Native people and other Arctic residents.