U.S.-based Commonwealth LNG has received a 20-year authorization from the Department of Energy to export liquefied natural gas from its proposed Louisiana facility to countries without free trade agreements with the United States.

The company has also received an approval for a period of 25 years for exports to FTA nations.

The authorizations will become effective either when the facility starts exporting commercially or seven years from the date the permission was granted.

Commonwealth has been attempting to build the country's first integrated LNG export facility, where its major shareholder Kimmeridge will supply gas from its Eagle Ford shale production to the plant.

It has also signed supply agreements with EQT, Glencore, Japan's biggest power generator JERA, Malaysia's Petronas and Australia's Woodside Energy.

Commonwealth has so far sold 5 MMtpy of planned capacity, but is still short of selling out the total 9.5 MMtpy that would come online upon completion.

LNG developers typically reach a final investment decision on projects once they have secured enough supply deals to obtain the necessary financing for construction.

The company had secured final non-FTA export authorization from the energy department for its export facility in September last year.

Its Louisiana facility is designed to produce 9.5 MMtpy of LNG, and had received approval from the Federal Energy Regulatory Commission in 2025.