Diesel hits record $6.18 a gallon as Saudi pipeline shutdown pushes Brent to $108
Saudi Arabia shut its East-West pipeline after drone attacks launched from Iraqi territory near the Iranian border, and the US diesel average went to a record $6.183 a gallon, up 31.6 cents in a week. Brent touched $108 before easing to $107.22. WTI ran to about $103. The pipeline moves crude from the eastern fields to the Red Sea port of Yanbu and exists specifically to bypass the Strait of Hormuz, so losing it takes out the workaround at the same time the chokepoint itself is barely moving. Saudi Arabia called the shutdown a precautionary measure and did not say when it restarts.
For a US jobber, the mechanism is simple. Up to 4% of global supply is in question, the futures curve repriced in an afternoon, and rack cost followed within a day or two.
The Saudi shutdown
Vessel traffic through Hormuz collapsed to 14 crossings over the weekend, single digits per day against a 10-day average of 14 per day. With Hormuz thin and the East-West line down, there is no clean second route for Gulf crude right now, which is why the bid held even after prices came off the intraday high. A meeting between Gulf states and Iran was postponed, so the diplomatic path that could take risk out of the price is not producing anything yet.
The rate side matters here too. About 90% of traders surveyed by CME expect the Fed to raise 25 basis points this week, after the ECB moved the same amount last week, and they are pointing at Middle East oil as the inflation driver. Higher crude feeding a rate hike is the kind of loop that raises your cost of carry on inventory while your product cost is already climbing.
Pump prices
Retail is moving fast and unevenly. Columbus gasoline averaged $4.21 Monday, up 27.3 cents in a week, with the cheapest station at $3.83 and the priciest at $4.31. Statewide the spread ran from $3.49 to $5.69. Akron and Cleveland each jumped more than 26 cents. Diesel is the sharper story: a record national average and a 31.6-cent weekly move, which lands directly on anyone hauling.
Worth keeping the gasoline number in perspective. Columbus gas is still 19.8 cents below a month ago even after the spike, though it is $1.30 over last year. Crude could ease if Hormuz traffic recovers and the pipeline restarts. Neither has happened as of this writing.
Diesel margins
High crack spreads are not pulling more diesel out of US refiners, and that is the squeeze. RBN Energy's read is that US plants are already running hard, so a fat margin does not automatically buy more barrels of product. When a disruption hits somewhere else, it drains US inventories instead of drawing down a cushion that is not there. The record diesel price reflects that squeeze, and it is not obviously easing.
For operators, the takeaway is that the diesel premium may stick even if crude softens, because the constraint is refinery throughput and low stocks, not the crude price alone. Watch distillate inventories more than the flat price over the next few weeks.
The HVO ruling
US renewable diesel exporters dodged a duty this week. The UK Trade Remedies Authority found on September 10 that US hydrotreated vegetable oil biodiesel was subsidized and had hurt UK producers, and recommended countervailing duties of £258.10 to £266.68 per tonne, roughly €302 to €312. The UK government declined to impose them, ruling it was not in the UK's economic interest. For a US HVO producer, that keeps an export market open that a duty of that size would have closed. Volumes that stay pointed at Britain are volumes not landing back in the domestic pool, which is a small but real factor for anyone tracking renewable diesel supply on this side.
Dangote's listing
Aliko Dangote said a secondary listing of his Nigerian refinery could land in the US. The plant is the largest in Africa and is opening to public ownership, and a US listing would put a major new Atlantic Basin refiner in front of American capital markets. It does not change your rack tomorrow. It is worth filing, because a fully ramped Dangote changes product flows in the Atlantic Basin, and where that refinery sells gasoline and diesel affects the arb into US East Coast markets over time.
Rail surcharges
Railroad fuel surcharges on US grain shipments hit 48 cents a mile per rail car in the second week of September, up 153% from the weighted average a year earlier, per USDA data. Surcharges made up 11% of the freight bill. The diesel spike is showing up in the farm belt during harvest, stacked on top of already higher production costs. Minnesota growers riding strong crop prices are watching fuel-driven freight eat into the margin. For a fuel supplier serving ag and rail-adjacent accounts, this is where demand and price stress meet: customers who need the diesel and are getting squeezed by what it costs to move everything else.
C-store wellness
Away from the price screen, C-Store Dive reports convenience stores leaning harder into health and wellness products as those buys become routine for more shoppers. For operators watching fuel margins get volatile, the inside-the-box basket is the steadier line, and wellness SKUs are one more reason to treat the store as the profit center and the pumps as traffic. Nothing here forces a move this week. It is a reminder of where the reliable margin has been sitting while crude does what it is doing.
What to watch
Whether Saudi Arabia restarts the East-West line, and whether it gives a date. Hormuz vessel counts: a rebound off single digits would take risk premium out of crude. The Fed decision this week, since a hike tied to oil inflation raises the cost of holding inventory. US distillate stocks, which will tell you whether the diesel squeeze is easing or getting worse regardless of the flat price. And any word on the postponed Gulf-Iran meeting, the one path that could pull the geopolitical bid back out.