Oil prices experienced a significant surge following renewed military actions by the United States against Iran. This escalation has heightened concerns about the stability of Middle East oil supplies, particularly given Iran's declaration that it has closed the Strait of Hormuz, a critical chokepoint for global oil trade. Brent crude, the international benchmark, immediately jumped 8% from $71.32 per barrel on February 27, 2026, to $77.24 per barrel on March 2, 2026, after the initial US and Israeli military operations began. As the conflict has continued, prices have climbed much higher, at one point breaking the $100 per barrel mark.
The Strait of Hormuz is a vital conduit for approximately 27% of the world's maritime trade in crude oil and petroleum products, and 20% of global liquefied natural gas (LNG) trade. The ongoing conflict, which intensified with Iranian forces threatening and carrying out attacks on ships attempting to transit the Strait since March 4, 2026, has led to a considerable decrease in shipping traffic. President Donald Trump has indicated the possibility of US actions to reestablish free transit, and the prospect of the US Navy escorting commercial vessels.
A prolonged disruption of Middle East oil trade could lead to unprecedented market conditions and significant upward pressure on oil prices globally, impacting crude oil, gasoline, and diesel fuel prices in the United States. While US natural gas prices have seen a more modest increase of 7% between February 27 and March 2, prices in Asia and Europe have surged almost 54% and 63% respectively over the week before military operations. The uncertainty surrounding the duration of any potential Strait closure and its impact on the confidence of oil tankers and insurance providers highlights the volatility in the energy market. The International Energy Agency (IEA) estimates there is approximately 4.4 million barrels per day of global spare crude oil production capacity, with over 75% concentrated in the Middle East, potentially limiting its effectiveness if the region is the source of the disruption. Additionally, IEA member countries hold over 1.2 billion barrels in government-controlled oil stocks, including 415 million barrels in the U.S. Strategic Petroleum Reserve, which could be drawn down at a maximum rate of 25 million barrels per day for two months, though this could be exhausted in about six months.
