Nigeria and Vietnam have experienced the largest fuel price increases worldwide since the February 28, 2026, escalation of the Iran-US-Israel conflict. The war has disrupted global oil markets, pushing crude prices higher and affecting domestic pump prices.

The Gulf region turmoil has caused interruptions in trade through the Strait of Hormuz and impacted Middle Eastern energy facilities, according to reports from DAILY POST.

Investinsight, a UK-based analytics firm, reported that Vietnam’s gasoline prices rose by 50 percent, while Nigeria saw a 40 percent increase since the war began.

Other countries, including Australia, the US, Singapore, Germany, Spain, Canada, and China, saw smaller fuel price hikes ranging from 10 to 17.2 percent during the same period.

In Nigeria, petrol now costs between N1,261 and N1,330 per liter in Abuja and surrounding areas, up from N875–900 per liter, representing a 44–48 percent increase.

The increase follows Dangote Refinery raising its gantry petrol price to N1,175 per liter from N799 per liter, as crude oil prices surged past $100 per barrel due to Middle East supply constraints.