A Pennsylvania court dismissed developers' lawsuit against environmental activists and township residents for alleged tortious interference with contract with respect to a series of oil and gas leases.

The Ninth Circuit held that BLM’s approval of a wind-energy development project in southeastern Oregon failed to adequately address impacts to the greater sage grouse in violation of NEPA.

The Fifth Circuit vacated and remanded a lower court decision that imposed no penalties against an oil company for alleged CAA permit violations at its industrial complex in Baytown, Texas.

The Vermont Supreme Court affirmed a lower court decision dismissing as untimely the state's claims against a number of companies for generalized injury to state waters due to groundwater contamination from methyl tertiary butyl ether, a gasoline additive.

The U.S. Supreme Court held that a U.S. Army Corps of Engineers jurisdictional determination (JD) is a final agency action subject to judicial review under the APA. The case arose in connection with the permitting process for a peat mine.

The Texas Supreme Court held that the common-law "accommodation doctrine," which gives an oil-and-gas lessee an implied right to use the land as reasonably necessary to produce and remove the minerals as long as it exercises that right with due regard for the landowner's rights, al