The Alaska Department of Natural Resources, Division of Oil and Gas (Division) received an
Easement Amendment application on December 18, 2025, from Hilcorp Alaska, LLC (Hilcorp)
requesting authorization to incorporate the Middle Ground Shoal (MGS) Facility Outfall Pipeline
Easement (ADL 228012) into the MGS Consolidated Easement (ADL 234256). The proposed
project will be adjudicated under AS 38.05.850. The Division is providing public notice and an
opportunity to comment.

Applicant: Hilcorp (see application for contact information)
Project ID: ADL 234256 and ADL 228012
Location: Former MGS Unit within Cook Inlet waters near Nikiski on the Kenai Peninsula (see
application for MTRS)

Project Description:
The MGS Unit was voluntarily terminated effective June 30, 2023.
Infrastructure associated with the three remaining oil and gas leases (ADLs 18756, 18754, and
17595) is currently managed through ADL 234256. The proposed amendment to ADL 234256
would consolidate all remaining MGS infrastructure into one easement by incorporating the MGS
Facility Outfall Pipeline into the MGS Consolidated Easement. The outfall pipeline, ADL
228012, is a private, non-exclusive easement for a 6-inch pipeline, approximately 50 feet wide
and 796 feet long, which was previously used to transport produced water from the MGS onshore
facility to Cook Inlet. The application does not propose any new construction. The purpose of the
amendment would be to provide continued access to the MGS area, establish a new term and
updated stipulations to protect the State’s interests, and allow the existing aging infrastructure to
remain in place while Hilcorp evaluates future plans for use or dismantlement, removal, and
remediation.

The application package is available for review at the Division’s Permitting Section, 550 West 7th
Avenue, Suite 1100, Anchorage, AK 99501, or online at http://dog.dnr.alaska.gov/Newsroom.
Please send comments to dog.permitting@alaska.gov or to the Division address above. All
comments must be in writing. A copy of the final decision will be sent to any person who
provides written comments. An eligible person affected by this decision may appeal or request the
commissioner’s reconsideration in accordance with 11 AAC 02.

All comments must be received by the comment deadline: 4:30 pm, Alaska Daylight Time,
March 23, 2026.

The Department of Natural Resources complies with Title II of the Americans with Disabilities
Act of 1990. This notice will be made available in alternative communication formats upon
request. Individuals with disabilities who may need auxiliary aids, services, or special
modifications to participate may contact the address above or call 907-269-8411.