A subsidiary of Marathon Petroleum has received a three-year extension from the US Federal Energy Regulatory Commission (FERC) to build a planned liquefied natural gas export facility in Alaska that remains in the formative stages.

The Kenai LNG cool down project, owned by Marathon subsidiary Trans-Foreland pipeline, was scheduled to be completed and available for service by 17 December.

Marathon, which plans to convert an LNG export plant into an import facility, said that, “despite good faith efforts”, that deadline will not be met by Trans-Foreland.