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Wyoming

Western Watersheds Project v. Michael

A district court held that environmental and animal rights groups may challenge the constitutionality of two trespass statutes passed by the Wyoming legislature in 2015. Under the statutes—one imposing criminal liability and the other...

Powder River Basin Resource Council v. Wyoming Oil & Gas Conservation Commission

The Supreme Court of Wyoming reversed and remanded a lower court decision affirming the Wyoming Oil and Gas Conservation Commission's denial of a request for public records documenting the identities of chemicals used in hydraulic...

Powder River Basin Resource Council v. Wyoming Oil & Gas Conservation Commission

A district court held that individual ingredients of hydraulic fracturing formulas are trade secrets and do not need to be publicly disclosed. The Wyoming Public Records Act does not define trade secrets, but the Wyoming oil and gas...

Montana v. Wyoming

The U.S. Supreme Court held that Wyoming did not violate the Yellowstone River Compact by allowing its pre-1950 water appropriators...

Sierra Club v. Wyoming Department of Environmental Quality

The Wyoming Supreme Court upheld a state-issued air quality permit authorizing a power plant's construction of a proposed coal-to-liquid facility and an associated underground coal mine. The court rejected an environmental group's...

Powder River Basin Resource Council v. Wyoming Dep't of Envtl. Quality

A district court denied the United States’ motion to dismiss a complaint, brought pursuant to the Federal Tort Claims Act (FTCA), in which plaintiff alleged that exposure to contaminants in the water supply at Camp Lejeune caused...

Exxon Mobil Corp. v. State

The Wyoming Supreme Court reversed the state's calculation of severance taxes owed by a company that operates a large natural gas well facility in the Bridger-Teton National Forest. State law provides that the fair market value of...

Wyoming v. Livingston

The court upholds the dismissal of state misdemeanor trespass and littering claims against a federal officer and contractor involved in the federal reintroduction of wolves in Wyoming. The officer and contractor were charged with the...

Wyoming v. Department of the Interior

The court upholds the dismissal of Wyoming's constitutional, Adminstrative Procedure Act (APA), Endangered Species Act, and National Environmental Policy Act claims against the U.S. Department of the Interior for failing to initiate...

Schutz v. Thorne

The court dismissed a Florida resident's claims that three Wyoming statutes unconstitutionally limit hunting opportunities for nonresidents. The individual lacks standing to challenge the "guide statute" that creates two classes of...