Iran War Chokes Global Shipping as Oil Tops $80

Traffic through the Strait of Hormuz, the narrow waterway linking the Persian Gulf to the Gulf of Oman and the Indian Ocean, has almost completely stopped since Iran escalated its threats against commercial shipping. The strait handles approximately one-fifth of the world's daily oil consumption, making its closure one of the most significant supply disruptions since the 2022 Russian invasion of Ukraine. For a detailed analysis of how the conflict has reshaped energy and defense markets, see our [Iran-Israel military escalation analysis](/posts/2026-02-28/analysis-iran-israel-military-escalation-how-operation-epic-fury-is-reshaping-oil-defense-and-safe-haven-markets).

U.S. crude oil prices topped $80 per barrel on Thursday, building on a surge from around $65 in late February to $71.13 by March 2 according to FRED data on West Texas Intermediate. The speed of the move underscores how dependent global energy markets remain on Middle Eastern supply routes, despite years of U.S. shale production growth and diversification efforts.

Insurance premiums on vessels flagged or associated with American, British, or Israeli interests have risen sharply, further constricting the flow of goods. According to data from the London Stock Exchange Group, supertanker charter rates from the Middle East to China hit an all-time record above $400,000 per day — nearly double the cost from a week earlier. Consulting firm AlixPartners estimates that a prolonged closure of the strait would add 10 to 14 days to transit times for rerouted shipments.

The oil price shock is translating rapidly into higher costs for consumers on both sides of the Atlantic. In the United States, average retail gasoline prices jumped approximately 23 cents per gallon in a single week, while diesel rose roughly 41 cents per gallon over the same period, according to motorist group AAA. United Airlines CEO Scott Kirby warned that higher airfares could follow the fuel price spike, signalling broader transport cost increases ahead. Airlines have already been hit hard, as [oil nears $80 while airline stocks crash](/posts/2026-03-02/oil-nears-80-as-airlines-crash-on-iran-fallout).

In the UK, the impact on natural gas prices has been particularly severe. The benchmark UK gas price rose above 165 pence per therm on Tuesday — a level not seen since a year after the start of the Ukraine war — before settling back to 127p on Wednesday. While UK consumers are temporarily shielded by the energy price cap through July, analysts warn that sustained high gas prices would translate to a significantly higher cap for the summer period.

UK petrol now costs an average of 132.14p per litre, with diesel at 142.15p per litre. The RAC reports that prices rose 3p per litre for petrol and 5p per litre for diesel between Saturday and Thursday alone. These increases remain well below the 43p per litre surge seen in the months after Russia's Ukraine invasion, but the trajectory has analysts on alert.

While the immediate impact on energy prices has been dramatic, supply chain experts warn that the broader economic effects of the shipping disruption will build gradually over the coming months. The vast majority of the world's traded goods travel by sea, and the International Monetary Fund has identified shipping costs as an "important driver of inflation" — though the fund cautioned this week that it is "too early" to fully assess the economic impact.

Sanne Manders, president of logistics technology platform Flexport, said carriers are likely to raise rates globally, not just on Middle East routes, as transport costs increase across the board. The IMF's own 2022 analysis found that while shipping cost increases affect import prices at the dock within a few months, the impact on consumer prices "builds up more gradually, hitting its peak after 12 months."

Fertiliser markets are already feeling the strain. QatarEnergy, one of the world's largest exporters of natural gas and a major producer of urea for fertiliser, has halted production following military attacks on its facilities. The U.S. futures price of urea reached $567 per tonne on Wednesday, up 21% in a single week according to Bloomberg data. Agricultural experts say it remains too early to determine whether fertiliser price increases will translate to higher food prices at supermarkets, but the direction of travel is clear. Our [deep dive on how geopolitical risk affects financial markets](/posts/2026-02-26/deep-dive-how-geopolitical-risk-affects-financial-markets-safe-havens-defense-spending-and-oil-price-shocks) explores the mechanisms through which such shocks propagate.

The conflict's economic tentacles are reaching into manufacturing sectors far removed from the Middle East. Analysis by Bernstein identified Toyota, Hyundai, and Chinese automakers including Chery as facing the greatest potential impact among non-domestic manufacturers. These three international automakers account for roughly a third of vehicle sales in the Middle East, led by Toyota at 17%, Hyundai at 10%, and Chery at 5%.

The disruption extends beyond lost regional sales. The Middle East accounted for approximately 17% of China's passenger vehicle exports in 2025, making it a critical growth market for Chinese automakers expanding globally. Bernstein analyst Eunice Lee noted that "a prolonged conflict and closure of the strait would hurt sales, increase logistics costs, and delay deliveries" across the industry.

Among European automakers, Stellantis appears most exposed. The Chrysler and Jeep parent company's stock has slumped 11% since last Friday, with analysts noting that its recent strategic pivot toward large gasoline-powered engines — including HEMI V8s — while walking back electrification efforts looks "particularly inauspiciously timed" as pump prices surge.

Perhaps the most consequential long-term effect of the crisis is its potential to derail the global disinflationary trend that had built momentum through late 2025 and early 2026. UK inflation fell to 3% in February, and the Bank of England had signalled it believed the 2% target could be reached as soon as April. In the U.S., inflation eased to 2.4% in January, just above the Federal Reserve's 2% target.

Those trajectories now face serious headwinds. If energy and shipping cost increases feed through to broader consumer prices, central banks may delay or reduce the pace of expected interest rate cuts. Some UK analysts are now speculating that rate cuts could be fewer than expected this year, with a minority predicting a potential increase — a scenario that seemed remote just weeks ago. The [ISM services PMI already flashed stagflation signals](/posts/2026-03-06/ism-services-pmi-stagflation-signals-flash-red) this week.

For borrowers, the implications are immediate. UK mortgage lenders have already begun lifting rates in response to the crisis, adding pressure to a housing market that was just beginning to show signs of recovery. Tracker mortgage holders face direct exposure to any Bank of England rate changes, while those seeking new fixed-rate deals are finding less favourable terms. The silver lining, if there is one, is that savers could benefit from higher deposit rates if the interest rate environment tightens.