Cook Inlet Natural Gas Storage Alaska is asking state regulators to permanently change its rates for customers who store natural gas at its facilities near Anchorage. The Regulatory Commission of Alaska is accepting public comments on the proposal through 5 p.m. April 28.

The company, known as CINGSA, wants to adjust what it charges for firm storage service and interruptible storage service starting June 1, 2026. Some rates would go up while others would go down under the proposal.

For customers using the original storage capacity, most rates would decrease slightly. The firm storage reservation rate would drop from $5.26 per thousand cubic feet to $5.12. But for customers using the newer 2023 expansion capacity, most rates would increase. The firm storage reservation rate for that capacity would rise from $6.27 to $6.51 per thousand cubic feet.

CINGSA operates underground natural gas storage facilities that help ensure reliable energy supplies for Southcentral Alaska. The company is required to file annual rate adjustments based on its operating costs and revenue requirements.

To comment on the rate proposal, submit written comments by April 28 to the Regulatory Commission at 701 West Eighth Avenue, Suite 300, Anchorage, or online at rca.alaska.gov. Reference case number TA64-733 and send a copy to CINGSA at P.O. Box 190989, Anchorage 99519.

The commission will review all comments before deciding whether to approve, modify or reject the proposed rates.