The International Energy Agency (IEA) in its World Energy Outlook 2012 is projecting that by 2020 the U.S. will surpas Saudi Arabia as the world's largest oil producer. US oil and gas production, driven by technologies that are unlocking light tight oil and shale gas resources, is rising dramatically. The U.S. is also starting to see the impact of new fuel-efficiency measures in transport. US oil imports continue to fall and the IEA is projecting that North America will become a net oil exporter around 2030. This means that the United States, which currently imports around 20% of its total energy needs, will become just about self-sufficient in net terms.