The Trump Administration, in the person of Interior Secretary Zinke, tried to eliminate Obama-era limitations on greenhouse gas emissions from the petroleum industry. The Administration tried to use the "Administrative Procedure Act to turn off provisions intended to reduce how much natural gas petroleum drillers could vent or burn on public or tribal lands. This would have been administered via the BLM. The federal government was sued by California, New Mexico, and various environmental groups, and yesterday, the court ruled in favor of the environment.
This is the second loss for Trump and Zinke in the same courtroom.
A third loss came in a Washington court where Trump tried to side step related methane emission restrictions using the EPA. A federal judge also nixed taht.