British drivers spent an extra 10 billion pounds because of the war against Iran British drivers paid an extra 10 billion pounds at gas stations due to the increase in fuel prices that arose as a result of the war in Iran. Over the past 8 months, the ongoing war against Iran has cost British drivers an average of £42 million a day in fuel costs. Meanwhile, amid fears of a new escalation in the conflict in West Asia, global oil prices reached their highest level in more than 6 months this week.