A district court vacated the the U.S. Forest Service's approval of an open-pit copper mining operation in the Coronado National Forest that included the dumping of approximately 1.9 billion tons of mine waste across over 2,000 acres of the forest. Environmental groups and tribes argued the Service m...

A state high court reversed a summary judgment for a natural gas producer in a challenge to the interpretation of leases it entered into with North Dakota. Before the lower court, the producer challenged the North Dakota Department of Trust Lands' conclusion that the producer had improperly calculat...

A state high court affirmed a partial summary judgment for landowners in a challenge to an oil company's use of their land to extract natural gas from neighboring properties. The landowners argued that the company's lease did not allow it to use their land to extract oil and gas from neighboring min...

The D.C. Circuit vacated the Mine Safety and Health Administration's (MSHA's) 2018 amendment to a 2017 safety standard that required mine operators to examine areas before miners began work and record any conditions that could adversely affect workers' safety and health. Union groups argued the amen...

A district court denied the Pipeline and Hazardous Materials Safety Administration's (PHMSA's) motion to dismiss a challenge to the agency's pipeline inspection regulations. An environmental group argued that PHMSA's existing regulations did not encompass all oil and gas pipelines that crossed feder...