
Atlantic Basin medium-range tanker availability is tight, with nine vessels in the seven-day US Gulf Coast window and 10 in Northwest Europe, both below their 90-day averages. USGC earnings are substantially higher, and forecasts point to further gains on the USGC-to-Europe TC14 route, although diesel arbitrage margins from Houston and Barcelona have weakened.
The tight vessel supply and stronger USGC demand are lifting clean-tanker freight costs, while weaker diesel arbitrage economics may constrain transatlantic product flows. Higher freight can raise delivered fuel costs, but the story does not establish a direct feed-commodity price effect.
Not enough comparable past events yet for a historical read.
After 153 past logistics events, ULSD / Diesel moved a median +0.4% over 5 sessions (52% higher; middle half -2.7% to +4.0%), and +0.2% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.