Citing a “national energy emergency,” the federal government gave a green light Friday to a long-delayed expansion of Signal Peak Energy’s Bull Mountains coal mine near Billings.

Former President Joe Biden moved to block new federal coal mining leases in a coal-rich region of Montana and Wyoming in May ...

The expansion permits Signal Peak Energy to extract nearly 60 million tons of coal from the Bull Mountains mine north of ...

The Department of the Interior Friday announced approval of a mining plan modification for Bull Mountains coal mine in ...

Environmental groups had opposed expanding a Montana mine previously caught up in allegations of cocaine trafficking and the ...