Back 27 Feb 2018 IEA head Birol: US to be world's top oil producer by 2019 - Reuters Fatih Birol, head of the International Energy Agency, with comments regarding US oil output levels, from Reuters. Key points: The US to be the single largest producer of oil by 2019, if not sooner. The US is set to outpace world's current largest producer, Russia. Total oil output from the US expected to top 11 million barrels per day by late 2018.