The ongoing conflict in the Middle East, sparked by the Iran war, has significantly impacted global fuel costs, leading to unprecedented rises in petrol prices in various countries, including the UK and Australia. As of late March 2026, petrol prices in the UK have surpassed 150p per litre for the first time since May 2024, while the average price of gasoline in the US has exceeded $4 per gallon, marking the highest levels since August 2022. This escalation in prices was influenced by military actions, particularly Iran's blocking of tankers at the crucial Strait of Hormuz, which has restricted oil flow for the region, disrupting the transportation and production of energy. Additionally, petrol prices in Australia have surged from averages of $1.70 to around $2.50 per litre, prompting the Australian government to introduce temporary measures such as free public transport in certain states to alleviate the impact of rising fuel costs. Other regions like the Philippines have experienced substantial prices increases and protests due to fuel shortages, exacerbated by the conflict. The ramifications of the Iran war have extended beyond immediate fuel prices, affecting household budgets, transportation policies, and even contributing to rationing in countries such as Sri Lanka.