There may be limitations for U.S. crude oil exports to long-distant economies because of limited port access for large-scale carriers, the government said. The United States is on pace to become the largest crude oil producer in the world, passing Russia at some point in the near future. Former President Barack Obama ended a 40-year-old ban on U.S. oil exports during his second term, though exports in 2016, his last year in office, were less than 500,000 barrels per day on average. Last year, exports more than doubled to reach an average of 1.1 million barrels per day. Already this year, total U.S. crude oil exports are at 1.6 million barrels per day […]