Approved Willow Project Description.

The Department of the Interior, Bureau of Land Management provided this description of the Willow Project in its Record of Decision, issued March 23, 2023:

The Project as approved in this Decision-Alternative E as described in the Final Supplemental EIS, as modified to include only drill sites BT1, BT2, and BT3 and associated infrastructure--will include the Willow Processing Facility (WPF), Willow Operations Center (WOC), airstrip, and three drill sites (BT1, BT2, and BT3). Gravel roads will connect to all Project infrastructure and will extend from the Greater Mooses Tooth 2 (GMT-2) development southwest toward the Project area. As approved in this Decision, the Project will include up to 199 total wells, four valve pads, three pipeline pads, five water source access pads, pipelines to support Project infrastructure, and up to three subsistenceuse boat ramps. BT2 will be located north of Fish Creek to gain access to a portion of the target reservoir. The subsistence-use boat ramps were added to the Project by ConocoPhillips Alaska as mitigation to help offset Project effects on the community of Nuiqsut.

The access road alignment will provide direct gravel-road access from the existing gravel road network in the Greater Mooses Tooth (GMT) Unit and Alpine developments to the Project facilities. The full, all-season gravel road connection to Alpine will allow for additional operational safety and risk reduction by providing redundancies and additional contingencies for each development.

Ice roads will be used during Project construction to support gravel placement and pipeline construction, to access the gravel mine site, and to transport sealift modules from Oliktok Dock to the Project area. Separate ice roads will be used for pipeline construction, gravel placement, and general traffic to address safety considerations. A partially grounded ice bridge across the Colville River near Ocean Point will be used to transport sealift modules to the Willow area. The ice road will originate at the end of the existing Kuparuk road system at Kuparuk drill site 2P (DS2P).

Infield (multiphase) pipelines will connect individual drill sites to the WPF, and export/import pipelines will connect the WPF eastward to existing infrastructure on the North Slope. Diesel fuel will be piped from Kuparuk...