A district court upheld in part and vacated in part a 2016 rule of the Office of Natural Resources Revenue (ONNR), which effectively changed how royalties owed to the federal government are calculated on oil, gas, and coal produced from federal land and offshore leases as well as coal produced from ...

A district court denied summary judgment for the state of Missouri in a challenge to the Bureau of Reclamation's approval of a water supply project in North Dakota. Missouri argued the Bureau violated NEPA by failing to prepare an EIS, failing to take a "hard look" at the effectiveness of mitigation...

The Ninth Circuit granted in part and denied in part a petition to review EPA's final rule approving California's SIP for meeting the air quality standard for ozone in the San Joaquin Valley. An environmental group argued the SIP's contingency measure was inadequate because it provided only a nomina...

The D.C. Circuit denied a challenge to EPA's 2015 rule updating the standards under which the Agency audits wood-burning heaters' compliance with CAA emissions limits. An industry group argued the rule was invalid because, unlike the 1988 rule, it authorized testing at other labs and neither account...

A district court granted in part and denied in part summary judgment for an environmental group and U.S. congressman in a lawsuit concerning enforcement activity along the U.S.-Mexico border. The plaintiffs argued the Department of Homeland Security (DHS) violated NEPA by failing to issue a suppleme...