① The United States is currently approaching the peak diesel demand season. Diesel demand in the country exhibits clear seasonality: late summer/fall agricultural harvest → increased use of agricultural machinery → rise in diesel demand; followed by winter → increased heating oil demand → further rise in distillate fuel demand. However, inventories are currently at the lowest levels for this time of year in history. This creates a combination of: low inventory levels + the upcoming peak season. As a result, the diesel market is more sensitive to supply disruptions. ② The average retail price of highway diesel in the U.S. reached approximately $5.65 per gallon on August 24, up about $1.94 per gallon compared to a year ago, an increase of over 50%. It is already very close to the historical high seen in 2022. Therefore, this is no longer simply a matter of "poor inventory data," but rather: tight inventory levels are now starting to be reflected in end-user prices. ③ The truly dangerous aspect of U.S. diesel inventory data is not just "low inventory," but rather: U.S. refineries are already operating near full capacity, yet inventories remain at their lowest levels for this time of year since the 1980s, while agricultural harvest and winter heating demand are about to increase. Adding to this are disruptions at Middle Eastern refineries, attacks on Russian refineries, and transportation disturbances in the Strait of Hormuz. The current situation resembles a global refined oil supply shortage rather than merely a U.S. inventory issue. This will have cascading effects on diesel prices, refining stocks, oil prices, U.S. inflation, and even Federal Reserve policy in the coming period.