Nicholas Kamm | AFP | Getty Images
President Donald Trump speaks at a rally on June 21, 2017, in Cedar Rapids, Iowa.
The American Petroleum Institute, the largest U.S. oil group, opposes lifting the ban, which will eat into the industry’s market share of gasoline sales. The move also faces bipartisan opposition in congress.
The U.S. Renewable Fuel Standard requires refiners to blend increasing amounts of biofuels like ethanol into the fuel pool each year, or buy credits from competitors who do. Refining companies that must buy the credits have complained about volatile prices in recent years.
The summer ban was put in place as an anti-smog measure, though studies have since shown its environmental benefits are limited. Trump will direct EPA to write a rule lifting the ban, and it would have to be fast-tracked to have it finalized before the next summer driving season.