Midwest distillate inventories increased rapidly in June and early July due to increased regional refinery production and limitations on moving distillate and other products outside the region. Distillate fuel oil includes products such as diesel fuel and heating oil. In the five weeks between June 9 and July 14, regional distillate inventories increased 18% (4.7 million barrels). Prior to June, Midwest regional inventories had been trending near or below the bottom of the previous five-year (2018–22) range.