President Donald Trump moved on his first day in office to increase U.S. oil and gas production, but the country's oil industry is actually starting to think about cutting output and jobs due to a double whammy of higher crude output from OPEC and on-again, off-again tariffs that have dented demand. The U.S. is the world's largest oil producer, pumping some 13.55 million barrels per day, employing millions of workers and generating trillions of dollars annually. Trump campaigned on the motto of "drill baby drill," and the national energy emergency he declared on his first day of office was designed to make it easier for companies to increase production, while he instructed officials to do everything they could to bolster the industry.