The Supreme Court appeared likely Tuesday to somewhat narrow the scope of environmental reviews required for major infrastructure projects nationwide as it weighed the construction of a Utah rail line that would carry billions of gallons of oil.

A proposed Utah railway would quadruple the Uinta Basin’s oil production if built. Colorado and environmentalists have fought the project, arguing its impacts would extend far beyond Utah’s own borders.

The history of the Supreme Court is not merely a catalogue of momentous decisions, but encompasses the politics and personalities behind the cases.

The U.S. Supreme Court is set on Tuesday to examine the extent to which federal agencies must review the environmental impact of projects they regulate in a dispute over a proposed railway in Utah that was challenged by environmental groups and a Colorado county.

The U.S. Supreme Court appeared inclined on Tuesday to limit the extent to which federal agencies must review the environmental impact of projects they regulate in a dispute over a proposed railway in Utah meant to carry crude oil that was challenged by environmental groups and a Colorado county.

A proposed western railroad expansion aimed at boosting crude oil production in Utah is coming before the Supreme Court in a case that could have wider effects on federal environmental regulation

A proposed railroad expansion that could quadruple crude oil production in rural eastern Utah is coming before the Supreme Court Tuesday.