Oil has reached a four-month high amid the escalating confrontation in the Gulf. The move follows a week in which Iran launched missiles at American warships at least three times and US forces continued striking Iranian tankers.

What a four-month high is, and is not

The phrase sounds dramatic and is worth deflating slightly. A four-month high means the price is above where it has been since roughly May. It does not mean a record, or even an unusual level by the standards of the past several years.

Oil prices are volatile by nature, and “highest since” formulations can be constructed for almost any move by choosing the right window. The useful question is not whether a threshold was crossed but what is driving the direction, and how much of it is likely to persist.

Risk premium versus supply

Energy analysts distinguish between two things that both raise prices during a conflict, and they behave very differently.

The first is actual lost supply. Barrels that do not reach the market have to be replaced from somewhere, and if no spare capacity exists the price rises until demand falls to match. This effect is durable while the disruption lasts.

The second is risk premium — the amount buyers pay above the price implied by current supply and demand, to insure against a disruption that has not happened yet. This component can evaporate within hours on news of de-escalation, because it was never based on a physical shortage.

The Gulf currently has both. Traffic through the Strait of Hormuz has fallen substantially since February, which is real lost supply. And the escalation of attacks on warships adds a premium reflecting the possibility of something considerably worse.

The cushion, and how long it lasts

Prices would be higher without two offsetting factors.

Chinese crude imports have fallen to an eight-year low, which we examined earlier this week. A large buyer stepping back frees barrels for everyone else. And the United States has drawn heavily on its Strategic Petroleum Reserve, now at its lowest level since the early 1980s.

Both cushions have limits, and the second has an obvious one. A reserve that has been drawn down cannot be drawn down again at the same rate, and the reason to hold it is precisely for a disruption worse than the current one. Energy economists have been warning that using the buffer during a prolonged conflict reduces the room available if the situation deteriorates.

Who pays

The distributional point is worth restating because it is easily lost in market coverage. Fuel is a larger share of spending for lower-income households, and for anyone who has to drive to work rather than choosing to. Diesel feeds into freight and therefore into food prices, reaching people who never buy a litre of it directly.

The countries whose households absorb most of this are largely not party to the conflict producing it. That is the ordinary arithmetic of a globally priced commodity, and it is the reason a war between two governments in the Gulf shows up in a supermarket in Norway or Ohio.

Sources

• WORLD Radio news summary, 10 September 2026, reporting oil at a four-month high amid Middle East turmoil
• 10 Things Global News briefing, 10 September 2026, on Iranian missile attacks and the Strait of Hormuz stalemate
• Our earlier reporting on Chinese crude import volumes and on record US fuel prices
• Published energy market analysis on risk premium and physical supply effects