The escalating Iran conflict in 2026 is pushing global oil prices up, and UK motorists are feeling the impact at the pump. The RAC and AA have warned of further rises as Brent crude has spiked due to geopolitical tensions and the risk of supply disruptions through the Strait of Hormuz.
What Is Happening With Iran and Why Does It Affect Oil Prices?
Overview of the 2026 Iran Situation
In 2026, escalating tensions between Iran and its adversaries have reached a critical point. The US and Israel have launched military strikes in response to alleged Iranian nuclear activities and support for regional proxies. These actions have raised concerns over stability in the Persian Gulf region, particularly around the Strait of Hormuz, which is crucial for global oil trade.
Risk to Oil Supply Through the Strait of Hormuz
Approximately 20% of the world's crude oil passes through the strategically vital Strait of Hormuz each day. Any disruption here would severely impact international shipping routes and lead to significant increases in global oil prices. This situation has already caused Brent crude prices to rise, affecting fuel costs across the UK.
Oil Supply Chain Impact
The supply chain from Iran’s oil fields through to British petrol pumps involves several stages: extraction of crude oil by OPEC member countries, transportation via tankers and pipelines, refining at UK facilities, and finally distribution to petrol stations. As tensions escalate, this entire process is being threatened, leading to higher fuel prices for consumers.
How Much Have UK Fuel Prices Risen?
According to DESNZ weekly fuel price data, the average UK petrol price has seen a substantial increase of around 20-25% since the beginning of 2026.
[Diesel prices](https://mlj.org.uk/tools/fuel-finder) have also climbed sharply, reflecting the broader impact of rising global oil prices.
Regional Variation and Supermarket Pricing
Fuel prices vary significantly across different regions in the UK. Rural areas and motorway services tend to be more expensive by approximately 10-15p per litre compared to urban areas. supermarket fuel stations are generally cheaper than branded chains, typically offering discounts of 3-6p per litre.
You can use our free
Fuel Price Finder to check live petrol and diesel prices near any UK postcode. This tool allows you to search by location, find the nearest fuel stations sorted by distance, and compare prices between supermarket, branded, and independent outlets.
Tips for Finding Cheap Fuel
- Fill up at supermarkets when possible, as they often offer competitive pricing.
- Avoid filling your tank at motorway service stations, where prices tend to be higher.
- Utilise loyalty cards from retailers like Tesco Clubcard or Nectar to save on fuel purchases.
- Consider refuelling mid-week, as prices are typically lower during this period.
The Impact on UK Motorists and Car Finance
Household Budget Strain
The rise in fuel costs is squeezing household budgets, especially for those with car finance agreements such as
Personal Contract Purchase (PCP) or
Hire Purchase (HP). With increased monthly payments, many motorists may struggle to maintain their financial commitments.
Potential Mis-selling of Car Finance Agreements
If you're having difficulty meeting your car finance payments, there's a chance you might have been mis-sold your agreement. The FCA estimates that 12.1 million eligible agreements (FCA, March 2026) could be affected by
discretionary commission arrangements (DCAs). On average, those who were overcharged might receive compensation of £829 per agreement.
Taking Action Against Mis-selling
You can
complain to your lender directly for free without the need for a
claims management company. You do not need a claims management company - this is something you can do yourself at no cost. The affected period covers from 6 April 2007 to 1 November 2024, so if you believe your car finance agreement was mis-sold during this timeframe, it's worth investigating further.
What Happens If Oil Hits $150 a Barrel?
Potential Scenarios and Impacts
Should Brent crude reach $150 per barrel (from around $85-90 pre-conflict), the cost of petrol in the UK could exceed 180p per litre, with diesel prices potentially surpassing 190p. Such dramatic increases would not only affect motorists but also impact sectors such as haulage and agriculture, driving up food costs and overall living expenses.
Government Response Options
In response to a severe oil price spike, the government might consider measures like reducing fuel duty or introducing additional energy support schemes to cushion the blow for consumers and businesses.
How to Reduce Your Fuel Costs Right Now
- Maintain Tyre Pressure: Under-inflated tyres increase fuel consumption by about 3%.
- Remove Roof Racks and Heavy Items: Lighten your vehicle load to improve fuel efficiency.
- Drive at 60mph Instead of 70mph: Slower speeds save around 9% in fuel.
- Use Cruise Control on Motorways: This helps maintain a steady speed, reducing unnecessary acceleration.
- Check Car Finance Terms: Ensure you're not paying more than necessary for your car finance agreement. If there's any overcharging due to DCAs, this could lead to significant savings.
Additional Tips
Consider planning journeys to avoid peak traffic times and use our
free fuel finder tool to compare prices before filling up.
Will Fuel Prices Come Down?
Factors Influencing Future Trends
Whether fuel prices will decrease depends on several factors, including geopolitical resolution, OPEC production decisions, and any potential interventions by the UK government. Historical precedent from previous conflicts, such as the 2022 Ukraine situation, indicates that price spikes can take 6-9 months to normalise.
Long-Term Trends
Looking further ahead, there is a growing trend towards electric vehicles (EVs) which could reduce demand pressures on oil prices in the long run. However, this transition will not happen overnight and may not immediately alleviate current high costs.
Sources and References
- DESNZ weekly fuel price data
- RAC warnings on rising UK petrol prices
- AA analysis of global oil market trends
- FCA estimates on motor finance agreements affected by DCAs (12.1 million)
- Financial Ombudsman Service guidance on consumer complaints regarding car finance
Key FCA Figures
The FCA confirmed on 30 March 2026: 12.1 million eligible agreements, £829 average compensation per agreement, £7.5 billion total redress at 75% consumer uptake, and £9.1 billion total cost to firms. The scheme covers agreements from 6 April 2007 to 1 November 2024. Two deadlines apply: 30 June 2026 for post-2014 agreements and 31 August 2026 for pre-2014. Final complaint deadline: 31 August 2027.
You can complain to your lender directly for free. You do not need a claims management company.
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MLJ.org.uk (mlj.org.uk) is a free, independent information service. We are not a claims management company, solicitor, law firm, or financial adviser. We do not handle complaints, process claims, charge fees, or accept any percentage of compensation. This information does not constitute legal or financial advice. You can complain to your lender directly for free. You do not need a claims management company. If your lender rejects your complaint, you can escalate to the Financial Ombudsman Service at no cost. For personalised legal or financial advice, consult a qualified professional.