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Greater Mooses Tooth Unit Proposed Development Project 

 Read: Record of Decision for the Greater Mooses Tooth Unit 1

On July 22, 2013, ConocoPhillips Alaska, Inc. (CPAI) submitted an application with BLM for issuance of a right-of-way grant and related authorizations to construct, operate, and maintain a drill site, access road, pipelines, and ancillary facilities to support development of petroleum resources in the Greater Mooses Tooth Unit 1. The proposed drill site location and majority of the infield roads and pipeline route are on BLM-managed lands.

A Supplemental Environmental Impact Statement (SEIS) was prepared to supplement the Alpine Satellite Development Plan (ASDP) Final EIS, dated September 2004, which analyzed the establishment of satellite oil production pads and associated infrastructure within the Alpine field. The SEIS tiers to the ASDP Final EIS, and the National Petroleum Reserve in Alaska (NPR-A) Final Integrated Activity Plan/EIS, finalized in November 2012.

The Greater Mooses Tooth Unit 1 (GMT1) project would facilitate the first production of oil from federal lands in the NPR-A.

A Federal Register Notice of Availability for the Draft Supplemental Environmental Impact Statement published on February 21, 2014. BLM held a 60-day public comment period, which ended on April 22, 2014.

The Draft SEIS contained four action alternatives, including: Alternative A, CPAI’s proposed action; Alternative B, which avoids placing infrastructure in the setback surrounding Fish Creek; Alternative C, which uses Nuiqsut as a hub; and Alternative D, which does not provide road access to the GMT1 site. The BLM did not analyze a seasonal (winter-only) drilling program as part of any of the alternatives, as this issue was not raised during scoping. Seasonal drilling was included as Alternative D-2 in the Final SEIS.

The Environmental Protection Agency (EPA) published a Federal Register Notice announcing the availability of the Final Supplemental EIS on November 7, 2014.

 The BLM published a Record of Decision on February 13, 2015.


Location: The proposed GMT1 drilling and production pad is approximately 14 miles west of the ConocoPhillips-operated Alpine Central Facility (CD-1). The GMT1 drill site would be operated and maintained by Alpine staff and supported by existing CD1 infrastructure. 

Greater Moose's Tooth Unit site  location map

Stay Informed

For more information, contact the Project Lead, Bridget Psarianos (907) 271-4208.


Record of Decision-

  -Notification of Final SEIS

Publication of Final SEIS-

  -Public Comment Period 
(Closes on April 22, 2014)

Notice of Availability of Draft SEIS-

  -Notice of Intent


The Draft and Final Supplemental EIS, and Record of Decision documents for the GMT 1 development were developed using the BLM's ePlanning system. GMT1 information on the planning process, as well as GMT1 documents, reports, and maps are hosted by the Greater Mooses Tooth Unit 1 ePlanning site.