New lawsuits challenge Gulf Coast LNG terminals

By Niina H. Farah | 12/19/2025 06:39 AM EST

Environmental groups are suing to block reauthorizations of Commonwealth LNG in Louisiana and Rio Grande LNG in Texas.

A rendering of the Commonwealth LNG project.

A rendering of the Commonwealth LNG project is shown. Commonwealth LNG

Environmental and Indigenous groups are heading back to the courtroom to oppose reissued state and federal approvals for planned liquefied natural gas export terminals in Louisiana and Texas.

The two new legal challenges claim state and federal officials failed to comply with court orders instructing them to do a more thorough review of the environmental risks the projects pose to vulnerable local communities.

The latest challenge came on Thursday when the Sierra Club, Louisiana Bucket Brigade and Turtle Island Restoration Network filed a state court challenge opposing a newly reissued coastal use permit from the Louisiana Department of Conservation and Energy’s Office of Coastal Management for Commonwealth LNG.

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Eric Huber, a managing attorney at the Sierra Club, said Louisiana officials did not change the terms of the permit or mitigation measures after a state court struck it down. The earlier ruling prevented the project’s developer from beginning construction in Cameron Parish.

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