Annual average U.S. crude oil production grew by 463,000 barrels per day (b/d) in 2017 to 9.3 million b/d after declining by 551,000 b/d in 2016. In November 2017, monthly U.S. crude oil production grew 1.2 million b/d year-over-year and reached the highest level of production in U.S. history, surpassing 10 million b/d, a level last reached in 1970 (Figure 1). U.S. crude oil production has increased significantly over the past 10 years, driven mainly by production from tight rock formations using horizontal drilling and hydraulic fracturing. EIA projects that U.S. crude oil production will continue growing in 2018 and 2019, averaging 10.7 million b/d and 11.3 million b/d, respectively. …