Trump weighs a temporary diesel export ban as diesel prices hit record highs
California pump prices aside, the story US operators need to watch is in Washington: Trump said he is "very seriously" considering a temporary ban on diesel exports as the global supply crunch worsens. Reports put the pause at 90 days. For jobbers and haulers, a federal move to keep US diesel at home would change margins and refinery run rates, and it would shift where crude flows. The direction isn't as simple as lower prices.
The export ban
Goldman Sachs ran the numbers on a 90-day ban and the near-term read is lower diesel. The bank estimates the move could cut diesel prices by about $0.25 a gallon every week once in effect. That holds only until storage fills. Diesel that can't leave the country fills up domestic tanks, and once they're full the price relief stops. After that the mechanics turn.
RBN Energy walked through the downside and it lands in the same place. Refiners who can't export the diesel they make will cut run rates rather than produce into a wall. Lower runs mean less of everything that comes off the same barrel, gasoline included. A diesel ban would pull gasoline output down with it. The crude market reacted to the reports along those lines.
WTI actually sold off on the ban reports while Brent climbed. WTI was $94.10 against Brent at $107.24. The logic: if US refiners cut runs, they buy less domestic crude, so more of it sits available at home. A ban meant to hold down one product pushed the domestic crude benchmark down and left the global one up. The gap between the two shows US crude backing up at home.
Record diesel
Diesel is already at record highs and the people who buy it in bulk are feeling it first. New Jersey school bus contractors and districts have watched diesel costs double. One district managed to hold transportation costs steady, but that is a district with a hedge or a contract, not the norm. Europe is worse off, with diesel surging on Ukraine refinery strikes plus tighter global flows, and that pull on the barrel is part of why US diesel may not ease on its own.
Sky News reported diesel has further to go. Take that as a market view, not a lock, but the direction of pressure is real. Distillate storage is thin worldwide. Refineries are down. And diesel buyers can't easily switch to another fuel. For haulers, the practical point is that surcharges based on last month's DOE average will lag a fast move, so the squeeze shows up in your own cash before it shows up in the pass-through.
Refinery restarts
The relief that exists comes from refineries restarting, not from policy. Nevada's only oil refinery restarted operations. A refinery restart drove gas price drops in the Green Bay area. Where a local refinery comes back online, the regional rack loosens and pump prices follow within days.
The pump picture is regional and split. One Chattanooga tracker had local gas down just over 16 cents a gallon on the week. Gainesville went the other way, up nearly 20 cents in a week. Same country, opposite moves, because gasoline is a local product set by the nearest refining and logistics, not a single national number. If your customers are asking why the station down the road is 20 cents off yours, that's the answer.
Crude and war
Crude opened the week higher on war fears after Trump rejected a peace deal proposal that Iran put on the table at the UN General Assembly. Brent traded over 3% up intraday. The impasse in US-Iran talks kept a risk premium in the barrel through the week.
For US operators this is the part to hold loosely. War-headline crude moves are real on the day and often gone by the next. What matters for your cost of goods is whether the impasse actually interrupts the flow of oil. Until it does, treat the crude bump as sentiment. The diesel export question is the one with a concrete mechanism behind it.
Biodiesel imports
One foreign item matters to US sellers. Britain declined to impose protective duties on subsidized US biodiesel imports, rejecting tariffs that an official assessment said could top £250 per tonne. The UK government's own math drove it: about £3 million a year in benefit to domestic producers against roughly £46 million in added cost to downstream users and consumers. UK producers are furious. For US biodiesel exporters, the read is simpler. A key export market just chose to keep the door open, which supports demand for US product at a moment when domestic RIN economics need every outlet they can get. The ethanol-mandate stories abroad this week are domestic-policy pieces and don't move the US rack.
What to watch
Whether the diesel export ban goes from "very seriously considering" to an actual order, and if it does, the length and any carve-outs. A 90-day pause with no exemptions for Jones Act moves or Northeast supply would hit East Coast diesel differently than the Gulf.
Run rates. If refiners start guiding to lower utilization ahead of any ban, that means less gasoline coming, and it would show up at the rack before the ban itself does.
Distillate storage. Goldman's whole timeline hinges on how fast tanks fill. Watch the weekly EIA distillate build once, or if, a ban starts, because once tanks tighten, the price relief goes with it.
The US-Iran track. Not the daily crude wiggle. Watch for any sign the impasse moves real barrels. Absent that, keep pricing off the diesel supply story, because that is where the mechanism, and the risk to your margin, actually sits.