An Illinois appellate court set aside the Illinois Commerce Commission's decision to allow the Dakota Access oil pipeline to double its capacity by adding more pumping stations. Environmental groups argued the Commission, in its assessment of the public need for the stations, misinterpreted a prior ...

A district court halted construction of a proposed high-voltage transmission line through the Upper Mississippi River National Wildlife and Fish Refuge. Environmental groups challenged FWS' original compatibility determination for the transmission line, which granted utility companies a right-of-way...

A district court granted environmental groups' motion for summary judgment in a challenge to FWS' 2019 determination that listing the Yellowstone bison as endangered or threatened under the ESA was not warranted. The groups argued the determination, among other things, failed to properly consider wh...

The D.C. Circuit remanded FERC orders rejecting an Oklahoma city's complaint that a hydroelectric dam overseen by the Commission caused periodic flooding. The city argued that the dam operator violated Article 5 of its license, which FERC had issued under the Federal Power Act, and sought to require...

The D.C. Circuit remanded DOE's 2020 rule that set more stringent energy efficiency standards than those of the American Society of Heating, Refrigerating and Air-Conditioning Engineers for commercial packaged boilers. Industry groups argued, among other things, that the Department inflated the econ...

A district court vacated EPA's denial of an environmental group's petition to issue new and revised water quality standards for the state of Washington. The group argued that EPA acted arbitrarily and capriciously in denying its petition, and sought to have the denial vacated and the petition remand...

A district court dismissed as moot a lawsuit seeking to reinstate a permit for the Keystone XL oil pipeline to cross the U.S.-Canada border. Twenty-three states challenged the president's authority to revoke the permit, arguing the permitting decision concerned only international and interstate comm...

A district court granted environmental groups' motion to preliminarily enjoin wildfire logging projects in the Willamette National Forest. The groups argued the Forest Service violated NEPA by failing to perform supplemental analysis for the previously approved projects to account for the effects of...

A district court denied Oklahoma's motion for preliminary injunction in a lawsuit concerning OSM's decision to strip the state of its regulatory authority over surface mining on the Muscogee (Creek) Nation's reservation. Oklahoma sought to enjoin OSM from enforcing its decision, arguing that the sta...

A district court granted Delaware's motion to remand to state court its climate liability lawsuit against fossil fuel companies. Delaware argued it had suffered, and would continue to suffer, damages from climate impacts caused by the companies' denial of and disinformation about the existence, caus...