Prudhoe Bay Unit (Borealis) is a producing conventional oil field located onshore the US and is operated by Hilcorp North Slope. The field is located in block ADL 28238, ADL 28240, ADL 28245, ADL 28239, ADL 28241, ADL 28262, ADL 47446, ADL 47450, and ADL 47447.

Field participation details

The field is owned by Exxon Mobil, ConocoPhillips, Chevron and Hilcorp Energy.

Production from Prudhoe Bay Unit (Borealis)

The Prudhoe Bay Unit (Borealis) conventional oil field recovered 76.86% of its total recoverable reserves, with peak production in 2003. The peak production was approximately 32.3 thousand bpd of crude oil and condensate. Based on economic assumptions, production will continue until the field reaches its economic limit in 2038.

Remaining recoverable reserves

The field is expected to recover 28.22 Mmboe, comprised of 28.22 Mmbbl of crude oil & condensate. Prudhoe Bay Unit (Borealis) conventional oil field reserves accounts 0.01% of total remaining reserves of producing conventional oil fields globally.

About Hilcorp North Slope

Hilcorp North Slope LLC (Hilcorp North Slope) is engaged in oil and natural gas exploration and production related activities. The company is headquartered in Texas, the US.


Information on the field is sourced from GlobalData’s fields database that provides detailed information on all producing, announced and planned oil and gas fields globally. Not all companies mentioned in the article may be currently existing due to their merger or acquisition or business closure.