President Donald Trump is expected Oct. 9 to lift a federal ban on summer sales of higher-ethanol blends of gasoline, a senior White House official told reporters. The move will be coupled with restrictions on biofuel credit trading sought by merchant refiners like Valero Energy Corp and PBF Energy Inc. Those rules would be aimed at retailers and oil majors accused by merchant refiners of driving up cost of complying with biofuels blending laws. More