Secretary of the Interior Ryan Zinke discusses the energy output in the U.S.: Secretary of the Interior Ryan Zinke on the Trump administration's push for a border wall and America's growing energy dominance. Oil production in the U.S. could soar to 11 million barrels per day bpd by the end of 2018, especially if the Trump administration puts the necessary infrastructure – pipelines, refineries, export facilities – in place, according to Secretary of the Interior Ryan Zinke. “There’s no reason why we can’t produce over 11 barrels a day,” he told FOX Business’ Stuart Varney during an interview on Thursday.