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        No. 24-813 · October Term 2025

        Chevron USA Inc. v. Plaquemines Parish

        Decided April 17, 2026, 8–0 · From the United States Court of Appeals for the Fifth Circuit

        Question

        Can an oil company being sued in state court for its World War II-era oil production move its case to federal court simply because the oil was produced to meet federal government contracts for wartime fuel—even if the contract did not specifically direct how to produce the oil?

        Facts of the case

        Beginning in 2013, several Louisiana coastal parishes—including Plaquemines Parish and Cameron Parish—filed lawsuits in state court against a consortium of oil and gas companies such as BP America Production Company, Chevron U.S.A. Inc., Shell Oil Company, and others. The parishes, joined by Louisiana state agencies and officials, alleged the companies had violated Louisiana’s State and Local Coastal Resources Management Act of 1978 (SLCRMA), which requires certain activities within the state’s designated “coastal zone” to comply with an environmental permitting system. Specifically, the parishes claimed the companies engaged in oil and gas exploration, production, and transportation in various “Operational Areas” along the Louisiana coast without securing the proper permits or by violating the conditions of the permits they did have. The complaints further alleged that pre-1980 activities (before SLCRMA’s effective date) were not “lawfully commenced,” and thus not exempt under the Act’s grandfather clause. The parishes seek wide-ranging remedies, including damages and restoration of affected coastal lands. The events at issue span decades, with the oil companies’ challenged…

        From Oyez.

        The Court's vote 8–0

        Majority: Clarence Thomas, John G. Roberts, Sonia Sotomayor, Elena Kagan, Neil M. Gorsuch, Brett M. Kavanaugh, Amy Coney Barrett, Ketanji Brown Jackson