A federal court delivered a serious blow to the Environmental Protection Agency’s renewable fuel agenda, ruling that the agency exceeded its authority by mandating refiners use cellulosic biofuels, which isn’t commercially available. The court sided with the country’s chief oil and gas lobby, the American Petroleum Institute, in striking down the 2012 EPA mandate that would have forced refineries to purchase more than $8 million in credits for 8.65 million of gallons of the cellulosic biofuel. However, none of the biofuel is commercially available. “[W]e agree with API that EPA’s 2012 projection of cellulosic biofuel production was in excess of...