States and industry groups had asked the Supreme Court to pause the EPA's rule that aims to curb emissions of methane from new and existing oil and gas facilities.

The Supreme Court on Friday let stand Biden administration rules that would cut emissions of the planet-warming gas methane as well as mercury in a rare win for an environmental regulation pending before the conservative high court.

The U.S. Supreme Court declined on Friday to put on hold new federal air pollution rules from President Joe Biden's administration to tighten limits on mercury and methane, acting in challenges brought by a group of states - most of them Republican-led - and industry groups.