A U.S. Appeals Court on Friday struck down a critical approval for a railroad project that would have allowed oil businesses in eastern Utah to significantly expand fossil fuel production and exports. The ruling is the latest development in the fight over the proposed Uinta Basin Railway, an 88-mile (142-kilometer) railroad line that would connect oil and gas producers in rural Utah to the broader rail network, allowing them to access larger markets and ultimately sell to refineries near the Gulf of Mexico. The Washington, D.C.-based appeals court ruled that a 2021 environmental impact state...