A district court dismissed as time-barred Puerto Rico's lawsuit against two gasoline suppliers for groundwater contamination. The commonwealth had sufficient knowledge of both the alleged…

The North Dakota Supreme Court held that the state owns the mineral interests under the shore zone of the Missouri River, which cuts through the oil-rich Bakken Shale region. Under the equal…

Pennsylvania's highest court struck down Act 13, which pertains to oil and gas operations in the Marcellus Shale, as unconstitutional. The Act repealed Pennsylvania’s Oil and Gas Act and…

A federal bankruptcy court held that a petroleum company and its subsidiaries may be held liable for at least $5 billion—and perhaps up to $14 billion—in environmental response costs and tort…

The D.C. Circuit dismissed Arizona's objection to a consent decree that established a timeline for EPA to approve a SIP, or promulgate a federal implementation plan (FIP), that would meet the…

A California appellate court, in an unpublished opinion, upheld San Francisco's ban on the use of plastic "checkout bags" by retail establishments in the city and county. A group of…

The Second Circuit held that it lacks jurisdiction to review an electric company's suit challenging the constitutionality of Vermont's Electrical Energy Generating Tax. The company owns…

The Alabama Supreme Court held that a property owner may go forward with its inverse condemnation claim against the director of the state transportation agency for allowing contaminated water to…

The Federal Circuit, on remand from the U.S. Supreme Court, held that the U.S. Army Corps of Engineers' temporary deviations from the water release rates set forth in an operating plan for…

A district court dismissed Native American and environmental groups' CAA citizen suit asking the court to order EPA to issue a final rule that establishes best available retrofit technology (…