Diesel surcharge benchmark hits record high as diesel cracks top $100 a barrel
The benchmark that sets most fuel surcharges hit an all-time high this week, and the national on-highway diesel average is closing on $5. For carriers and fuel haulers, that number is the one that matters. Surcharge tables key off it, so a record there feeds straight through to what shippers pay and what haulers collect on every load this week.
What's driving it is bigger than the pump number. Diesel cracks pushed above $100 a barrel to a record, meaning refiners are earning more than $100 on every barrel of crude they turn into diesel. Those high cracks are pushing your fuel bill up, and they have not eased yet.
The crack spread
The headline 3-2-1 crack rose 52 cents last week to $66.36 a barrel. Diesel is doing all the work: gasoline is soft heading out of summer, so the distillate side is carrying the barrel, and cracks over $100 have refiners running as much diesel as they can. That pull toward diesel can leave gasoline supply tighter later.
Crude over $100
Crude topped $100 this week as the Iran fighting escalated, and that is the fuel under everything else. Higher crude lifts the floor on diesel, and a supply scare on top of already-tight distillate is why the surcharge benchmark set a record now rather than in a quiet market. If the fighting cools and crude eases, diesel could soften with it. A threat to Gulf supply would hit distillate with no cushion to absorb it.
What haulers are paying
The strain is showing up everywhere fuel gets bought. Diesel at US military stations in Japan and South Korea, priced on a set schedule, looks set to cross $6 a gallon. For a hauler, the read is simpler. Margins on a load are thin when surcharge recovery lags the spot move, and with the benchmark at a record and cracks over $100, the gap between what you pay Monday and what the surcharge pays back can widen before it closes.
What to watch
The diesel crack is the number to track. If it holds above $100, refiners may keep favoring diesel and gasoline supply could tighten into fall. Watch the Iran headlines for the crude direction, and track how fast surcharge tables catch up to the record benchmark. While that catch-up lags, haulers pay the difference out of their own margin.