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Edwards Aquifer Authority v. Day

The Texas Supreme Court held that landowners have an ownership interest in the water beneath their property that cannot be taken for public use without adequate compensation under the Texas Constitution. The Texas courts have long held that landowners have ownership in oil and gas beneath their ...

PPL Montana, LLC v. Montana

The U.S. Supreme Court reversed a state court decision that Montana may charge rent from an electric company that owns dams on the Missouri, Madison, and Clark Fork rivers. The Montana Supreme Court held that title to the riverbeds passed to Montana when it became a state in 1889 and awarded alm...

Exxon Mobil Corp. v. United States

The Court of Federal Claims held that the U.S. government is liable for costs an oil company incurred cleaning up contamination stemming from the production of aviation gasoline at its Baytown, Texas, and Baton Rouge, Louisiana, refineries during World War II. In the early 1940s, the company's prede...

American Trucking Ass'n v. EPA

The court holds that the U.S. Environmental Protection Agency's (EPA's) construction of the Clean Air Act (CAA) in promulgating the revised national ambient air quality standards (NAAQS) for ozone and particulate matter (PM) effects an unconstitutional delegation of legislative power and remands the...