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 The Act repealed Pennsylvania’s Oil and Gas Act and replaced it with a codified statutory framework regulating oil and gas operations in the Commonwealth. Among ot...

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 be pumped onto the owner's land. Although the agency is immune from suit, valid inverse condemnation acti...

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 a nuclear power plant that is the sole entity taxed under the scheme, which imposes a charge on electricity produc...

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 (BART) for the Navajo Generating Station, a coal-fired power plant in northern Arizona near the Grand Canyon. ...

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 requirements of the Regional Haze Rule. A lower court held that it lacked jurisdiction to hear the objection...