U.S. operable atmospheric crude oil distillation capacity increased 0.9% during 2019, reaching a record of 19.0 million barrels per calendar day (b/cd), up 0.2 million b/cd from the previous record of 18.8 million b/cd the year before. According to the U.S. Energy Information Administration’s (EIA) annual Refinery Capacity Report, U.S. operable crude oil distillation unit (CDU) capacity has increased slightly in seven of the past eight years.