UK Fuel Prices Surge: Why Are They Rising Again?

Fuel prices in the United Kingdom have resumed their upward trajectory, driven by volatility in global oil markets. As of July 2026, both petrol and diesel prices have seen significant increases, notably after Brent crude oil surpassed the $100 per barrel threshold. This resurgence is placing considerable cost pressure on households and businesses across the nation.

The primary catalyst for this price hike is the escalating geopolitical tensions in the Middle East. Ongoing conflicts involving the US and Iran, coupled with concerns or actual disruptions in vital maritime chokepoints such as the Strait of Hormuz and the Bab el-Mandeb Strait, are threatening global oil supplies. Given that the Strait of Hormuz alone accounts for approximately one-fifth of the world's oil supply, any instability in these regions directly impacts crude oil prices.

Since March 2026, average petrol prices in the UK have fluctuated between 151.0p and 156.19p per litre, while diesel prices have climbed to between 167.1p and 173.15p per litre. According to RAC data, oil prices have surged from the low $70s earlier in July to above $100. Record-high refinery margins and exchange rate fluctuations are also contributing factors to the increases observed at the pumps.

The rising cost of fuel is having widespread implications for the UK economy. Increased transportation expenses are exacerbating cost-push inflation throughout supply chains, which is then passed on to consumers through higher prices for goods and services. This reduces household disposable incomes and burdens businesses with elevated operational costs, potentially dampening overall consumer demand and negatively impacting economic growth.

Analysts anticipate that oil prices will remain elevated in the near term, provided tensions in the Middle East persist. Bank of America projects Brent crude to average around $100 per barrel for the remainder of 2026, though institutions like Goldman Sachs and J.P. Morgan maintain fourth-quarter forecasts closer to $80, they warn prices could exceed $120 if disruptions in the Strait of Hormuz continue. Furthermore, the UK government's planned incremental increases in fuel duty, set to begin in September 2026, will exert additional upward pressure on pump prices.