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Diesel: the peak has passed. The risk has not.

Risk Management
Small Business Energy Fuel Costs Risk Management North East

A UK service forecourt at dawn, one white van parked at the diesel pump, wet tarmac reflecting the low light

At the start of the month the framing for a piece like this was easy. Crude is high, diesel is high, winter is coming, expect a squeeze. That framing is now out of date, and it is out of date in the opposite direction to the one people were braced for.

This is the other version: the peak is behind, here is how to work with that, and here is what could still break it.

What actually changed this week

The front of the oil curve fell hard. ICE Brent January 2027 settled at $94.62 on 4 November, against $103.60 the day before and $104.77 on 2 November. February 2027 settled at $92.17 and March 2027 at $90.05.

That is most of the argument. Not a spike. A slide. And it is a slide across the front of the curve, not just the near month, which matters if you buy fuel rather than trade it.

Every oil price here is a dated settlement print, not a live quote. Settlements are the record, and the record is what a firm should budget against.

What the UK forecourt is doing

DESNZ weekly road fuel prices, week ending 2 November 2026: UK diesel 198.58p/l, petrol 172.78p/l. Diesel is on its fifth consecutive weekly fall, easing away from the 200.04p/l high of 12 October.

Do not confuse easing with cheap. UK diesel is still roughly 17% above its own 52-week average of 169.75p/l. The number landing on your own costs has come down a little and remains well above the average of the past year. That gap is the thing to hold in your head.

The United States shows the same shape about two weeks behind, on a separate supply chain with its own prices. The EIA weekly for 2 November put the US on-highway diesel national average at $6.292/gal, down 6.0 cents on the week but up $2.539/gal on the year. Regular gasoline was $4.153/gal. The gap between diesel and petrol was $2.139/gal, and it widened, because petrol fell faster.

Treat the US figure as context, not as a forecast for your forecourt.

How the price got made

The reason the peak has passed is policy and barrels, in that order.

The G7 and the IEA agreed a coordinated release of 100 million barrels on 2 October, front-loaded towards diesel and phased over four months. It is still releasing.

Then the Russian diesel arrangement agreed between Trump and Putin, announced on 9 October: more than 300,000 tonnes of diesel headed for the US market. The first cargo, Agioi Fanendes, loaded at Primorsk on 22 October, arriving in the United States around 7 November. Russian refiners are lifting diesel output towards 180,000 tonnes a day under export quotas.

So the honest mechanism is barrels that were released and barrels that are sailing. Not hidden oil. Not a mystery about where the oil went.

The midterms are worth one paragraph because people will assume otherwise. There has been no change to US energy policy. The market read the Democratic sweep as an AI-regulation trade, not an energy trade. No new reserve release decision, no diesel tax action, no sanctions package announced as a consequence of the result. A winter forecast built on the midterms rests on a variable that has not moved.

A short aside about storage

The US Strategic Petroleum Reserve stood at 282.6 million barrels for the week ending 23 October, around a 40-year low. It also shows "transfers to crude oil supply" running at about 540 thousand barrels a day in the latest week and about 463 thousand a day over four weeks.

It is not what set this week's price. The G7 barrels and the Russian cargoes did, and I would rather say that plainly than build a mystery.

What this means for a firm like yours right now

Four practical moves. None needs a terminal, a forecast or an opinion about December.

Put a fuel clause in the customer contract. A surcharge tied to the published weekly diesel average, reviewed at a fixed interval, so a rise gets passed on within a month rather than absorbed for two quarters. One clause, one review date, one published series. It is not sophisticated and it works.

Buy in weekly lots, not one big block. A rolling weekly purchase means you never take the whole move at once. When the price is falling, weekly buying captures the fall. When it rises, you have already taken part of the hit and you are not scrambling. The discipline is one line in a spreadsheet and a standing reminder.

If you run vans, check what the vans are running. In the UK, diesel at 198.58p against petrol at 172.78p is a gap of 25.8p a litre. Light commercial vehicles on petrol remain materially cheaper per litre, and whether diesel is right for a van is a decision about the vehicle.

Watch one number. UK diesel against its 52-week average of 169.75p/l. At 198.58p you are about 17% above it, and that spread is your buffer. As the spread narrows towards zero, the case for locking a few months of cover gets stronger.

What could still break it

Three things, each with an honest probability of low, not zero.

Hormuz. The Strait has been closed to commercial shipping since late February 2026. That is the baseline, not this week's news. The latest IMF PortWatch data, published for 25 October, records two transits, about 2% of the roughly 85 a day you would normally expect.

What changed is not the strait but the routing around it. Middle East oil export volumes have been sustained above the pre-war level, over 24 million barrels a day by 18 October against 23 million before the war, because exports are being sent around through the UAE and Saudi east-west pipelines and ship-to-ship transfers rather than through the strait. Two series, two bases. Do not add them together.

The reopening track is live. On 2 November Iran signalled it was ready to reopen within about two days if the United States met its conditions. The American reply was called unconvincing, Iran readied a "maximum deterrence" plan, and on 4 November President Trump said he was "locked and loaded" while downplaying any immediate strike. So the closure continues while a conditional reopening is negotiated.

The risk worth planning for is neither an opening nor a fresh shutdown. It is that the closure runs longer than the market is pricing, or that something escalates and the bypass routes are hit as well. Either way the crude figures here become history quickly.

Gas. QatarEnergy's chief executive, Saad al-Kaabi, told Reuters that Iranian attacks knocked out about 17% of Qatar's LNG capacity, potentially for up to five years, with roughly 12.8 million tonnes a year sidelined. That is a gas and freight story first. It reaches a North East firm through heating and process energy, freight rates, and anything with gas in its input chain. It does not reach you through the forecourt.

Freight. Anything bought by tanker or carried in a container carries the Gulf risk in its price. It usually arrives at a small firm as a supplier's increase rather than a fuel invoice, so it is easy to miss.

One more channel, briefly, because it gets confused with fuel. If you buy anything nitrogen-dependent, fertiliser is the line to watch, not diesel. The 2026 spike has largely unwound: urea FOB Middle East peaked around $850 a tonne in April 2026, averaged about $399 in the third quarter and about $420 in October, against a 2025 average of $422.7. Phosphates have stayed high, with DAP around $800 at the US Gulf.

The tail risk sits further out, and it is a crop risk rather than a price risk. Back in May, at a ministerial in Rome, FAO Director-General Qu Dongyu warned that fertiliser scarcity caused by the Hormuz disruption would lead to lower yields and tighter food supplies in the second half of this year and into 2027, because the crop calendar cannot be postponed and a missed application window permanently reduces yield. That warning is six months old and predates the oil collapse, so treat it as the standing shape of the risk rather than news. It is also his assessment, and it is conditional on the disruption running on. I am not writing a food shortage piece, but the channel lands on your input costs whether or not the forecourt moves.

A founder's note

I run a small North East firm, so this is not a macro view from a distance.

What I actually do is fairly boring. There is one number on the card now, diesel against its 52-week average, and I check it alongside the rest of the weekly numbers. There is a fuel clause going into my customer contracts, and I buy in small weekly lots. None of that is clever, and none of it needs a view on where Brent goes in December.

The reason I wanted to write this is that the piece I had in mind was wrong. It was going to be about a winter squeeze. By the time the numbers arrived, crude had settled lower for three sessions running and UK diesel had fallen for five straight weeks. Writing the squeeze piece now would have meant writing the scarier version of a stale argument, and a small firm reading it would have made expensive decisions.

I would rather be right in November than dramatic in October.

What changed since the last version of this argument

The earlier version ran on a crude anchor of roughly $110 to $115 a barrel and a "coming squeeze" framing: diesel high into winter, expect worse. That anchor is stale now, and stale in the worst direction, because it makes people act on a risk that has partly passed. The settlements on 4 November were $94.62 for January 2027, $92.17 for February and $90.05 for March.

What has not changed: the Strait is still closed to commercial shipping, the gas damage in Qatar is real and long, and UK diesel is still about 17% above its own 52-week average.

Facts as at 4 November 2026

Every figure used above, with its date and source.

Oil, ICE Brent front-month settlements

  • January 2027 settlement $94.62 - 4 November 2026
  • January 2027 settlement $103.60 - 3 November 2026
  • January 2027 settlement $104.77 - 2 November 2026
  • February 2027 settlement $92.17 - 4 November 2026
  • March 2027 settlement $90.05 - 4 November 2026

UK pump prices, DESNZ weekly road fuel prices

  • Diesel 198.58p/l - week ending 2 November 2026
  • Petrol 172.78p/l - week ending 2 November 2026
  • Diesel high 200.04p/l - week ending 12 October 2026
  • Diesel 52-week average 169.75p/l - as published for the week ending 2 November 2026
  • Diesel approximately 17% above that 52-week average - as at week ending 2 November 2026

United States, EIA weekly release for 2 November 2026

  • On-highway diesel national average $6.292/gal - down 6.0 cents week on week, up $2.539/gal year on year
  • Regular gasoline $4.153/gal
  • Diesel-to-gasoline gap $2.139/gal, widened

US storage, EIA Weekly Petroleum Status Report

  • Strategic Petroleum Reserve 282.6 million barrels, around a 40-year low - week ending 23 October 2026
  • "Transfers to crude oil supply" about 540 thousand barrels a day in the latest week, about 463 thousand barrels a day four-week average - week ending 23 October 2026

Policy and supply

  • Coordinated release of 100 million barrels, diesel-front-loaded, phased over four months - agreed 2 October 2026, G7 and IEA
  • Russian diesel supply of more than 300,000 tonnes to the US - announced 9 October 2026 by Trump and Putin
  • First cargo Agioi Fanendes loaded at Primorsk - 22 October 2026, LSEG
  • Estimated arrival of that cargo in the US - around 7 November 2026, LSEG
  • Russian refiners lifting diesel output towards 180,000 tonnes a day under export quotas - around 3 November 2026, oilprice.com
  • No change to US energy policy after the midterms, the Democratic sweep read as an AI-regulation trade - 4 November 2026

Hormuz

  • Closed to commercial shipping since late February 2026 - the standing baseline, not a new event
  • Two transits on 25 October, about 2% of the roughly 85 a day normally expected - IMF PortWatch, latest published day 25 October 2026
  • Middle East oil export volumes over 24 million barrels a day by 18 October 2026, against 23 million barrels a day before the war - sustained by rerouting around the strait via UAE and Saudi east-west bypass pipelines and ship-to-ship transfers, not through the strait
  • Iran signalled readiness to reopen within about two days if the United States met its conditions - 2 November 2026
  • The United States reply called unconvincing, Iran readied a "maximum deterrence" plan - 2 to 4 November 2026
  • President Trump said he was "locked and loaded" while downplaying strike plans - 4 November 2026
  • About 17% of Qatar's LNG capacity knocked out, potentially for up to five years, around 12.8 million tonnes a year sidelined - QatarEnergy chief executive Saad al-Kaabi to Reuters

Fertiliser

  • Urea FOB Middle East about $850 a tonne peak in April 2026; World Bank Pink Sheet monthly averages about $399 in Q3 2026 and $420 in October 2026; 2025 average $422.7 - World Bank Pink Sheet, 3 November 2026. (The $442.5 a tonne spot mark sometimes quoted for 3 November is a CBOT urea futures basis, not a physical FOB-ME assessment.)
  • DAP about $800, US Gulf - early November 2026
  • FAO Director-General Qu Dongyu, at the MED9++ ministerial in Rome, warned that fertiliser scarcity caused by the Hormuz disruption will lead to lower yields and tightening food supplies in the latter half of 2026 and into 2027, because the crop calendar cannot be postponed and a missed application window permanently reduces yield - 7 May 2026, standing background rather than new news

This piece offers a way to read a market, not financial advice on any one purchase.