The U.S. Supreme Court held that a district court erred in remanding to state court landowners' class action lawsuit seeking compensation for damages they sustained when an energy company allegedly underpaid royalties due under certain oil and gas leases.

The Ninth Circuit upheld a lower court's dismissal of a lawsuit brought under the Alien Tort Statute and California tort law against a petroleum company alleging it should be held liable for war crimes committed by members of the Colombian National Army’s 18th Brigade.

The North Dakota Supreme Court upheld an administrative law judge's (ALJ's) award of benefits in the death of an oil-tank worker.

The D.C. Circuit upheld EPA's denial of a petition filed by 101 environmental groups asking the Agency to regulate spent lead bullets and shot under TSCA.

The Fifth Circuit denied a motion to rehear its earlier decision that the Texas Commission on Environmental Quality (TCEQ) did not cause the unlawful take of endangered whooping cranes in the Aransas National Wildlife Refuge in violation of ESA §9.

The Ninth Circuit affirmed a lower court decision granting summary judgment in favor of the federal government on claims that it violated ESA, NEPA, and National Forest Management Act in connection with its approval of a lumber thinning and fuel reduction project in northern California.

A district court refused to vacate a biological opinion issued by the National Marine Fisheries Service (NMFS) in which it determined that the operation of the Atlantic Sea Scallop Fishery would not jeopardize the continued existence of the Northwest Atlantic population segment of loggerhead sea

A district court, in a 100+-page opinion, vacated an FWS rule removing the western Great Lakes distinct population segment (DPS) of gray wolves from the ESA’s list of protected species and ordered the agency to reinstate immediately the protections for gray wolves in the affected area as these pr

The Ninth Circuit upheld the National Marine Fisheries Service's (NMFS') biological opinion regarding the impact of continuing water extraction in the California Central Valley on certain threatened and endangered salmonid species.

The D.C. Circuit held that EPA's regulations implementing the 2008 NAAQS for ozone exceed the Agency’s authority under the CAA. In 2008, EPA revised and strengthened the standards for ozone pursuant to the CAA.