Crude jumps 6% on Hormuz attacks, pointing higher diesel and fuel surcharges for US carriers

Crude jumped about 6% after Iran struck three commercial vessels off the Omani coast, and diesel buyers should expect the pump to follow within days. Brent is trading at $76.58 a barrel and WTI at $72.74. For haulers, that flows straight into next week's fuel surcharge tables, which reset off the DOE diesel average.

The Hormuz spike

At least four oil and LNG tankers made U-turns from the Strait of Hormuz in the past 12 hours, according to Reuters vessel-tracking data. Iran hit three ships on Tuesday, including an oil tanker and an LNG carrier, and the US answered by canceling its sanction waiver for Iranian crude and trading military strikes.

For a fuel hauler, the strait matters because roughly a fifth of the world's oil moves through it, and when tankers turn around, the market prices in the risk fast. A 6% crude move does not hit retail diesel one-for-one or overnight, but it works through the rack over the next week or two. Carriers running mileage-based surcharge clauses could see their per-mile add climb if crude holds here.

Russian refinery hits

Diesel costs were already grinding higher before Hormuz. Ukraine hit two Russian refineries, shadow-fleet tankers, and an airfield in a single night, and StoneX flags that the steady campaign against Russian refining is quietly tightening diesel. Russia is a large distillate exporter, so every unit knocked offline pulls at the global diesel balance that sets US prices at the margin.

Put the two together and the risk is stacked on the same barrel: tighter crude supply from the Gulf and tighter refined diesel from the Russian outages. Both push the diesel crack wider, and that shows up in surcharge math.

Biodiesel feedstock

Malaysian palm oil futures rose 0.66% to RM4,577 a ton, about $1,123, on El Niño supply worries and biodiesel demand. Palm is a feedstock competitor for the fats and oils that feed US renewable and biodiesel production, so a firmer palm market props up the whole veg-oil complex that blenders draw on. It is a slow lever, not a same-week one, but it argues against cheap biodiesel offsetting the diesel run-up.

Malaysian retail fuel prices held flat for July 9-15, which tells US operators nothing directly and is worth noting only as a reminder that subsidized foreign pump prices don't track the crude tape.

What to watch

Whether the strait stays passable is the whole diesel question this week. Crude could ease if tankers resume steady transit; it could firm further if more vessels turn back or the US-Iran exchange escalates. Watch the DOE diesel print and your carriers' surcharge resets.