The United States (US) and Israel attacked Iran on February 28, 2026, amid allegations that Iran was developing a nuclear program.
Iran then launched a counter-attack on Israel and US military bases across the Middle East, and the mutual attacks have continued to this day.
The US-Israel war against Iran triggered a rise in global crude oil prices, especially after Iran blocked the Strait of Hormuz, a major oil export route from the Middle East.
This had an impact on fuel prices in many countries. According to Global Petrol Prices, the most affected country was Vietnam.
After a week of war (March 9, 2026), the price of gasoline in Vietnam was recorded to have risen by 50% compared to the week before the war (February 23, 2026).
In a similar period, significant increases in gasoline prices were also recorded in Nigeria, Laos, Pakistan, Cambodia, Maldives, Australia, the US, Singapore, and other countries, as shown in the chart.
According to Global Petrol Prices, the rise in global oil prices has had varying impacts on different countries, depending on their respective government policies.
"Prices in countries with liberalized fuel markets adjust more rapidly," said Global Petrol Prices on its website, quoted March 13, 2026.
"Governments in countries with regulated prices often wait several weeks to determine whether the oil price change is permanent before adjusting retail prices. If the shock is large, governments may also intervene to suppress a price increase," they said.
As for Indonesia, as one of the countries with government-regulated fuel prices, it had a relatively low percentage of gasoline price increases during the period from February 23 to March 9, 2026, which was only 2.8%.
Global Petrol Prices collects these fuel prices data from government ministries/agencies, international oil companies, and mass media reports in each country.