Strait of Hormuz Closure and Kharg Island Strikes Threaten Global Oil Supply, Prices Surge
Takeaway
The 50% increase in Brent crude reflects a major supply chain disruption, not a seasonal spike. Energy traders should monitor tanker traffic near Kharg Island and statements from NIOC. A prolonged closure of the Strait of Hormuz may create opportunities for North American and West African producers to increase exports to Asia.
The ongoing conflict between the United States, Israel, and Iran has severely disrupted global energy markets, with the Strait of Hormuz effectively closed to commercial shipping since late February 2026. This closure, coupled with reported U.S. airstrikes on Iran's Kharg Island, a critical oil export hub, has sent Brent crude prices soaring to nearly $120 per barrel. The United Nations has warned that the Strait of Hormuz closure could have a "huge impact" on humanitarian operations.
The Strait of Hormuz is a vital waterway through which approximately one-fifth of the world's oil and liquefied natural gas (LNG) transits. Its closure threatens shortages of crude oil, gas, and petroleum products, particularly in the Asia-Pacific region, which relies heavily on Middle Eastern energy imports. The International Energy Agency (IEA) estimates that approximately 16 million barrels per day of oil flows are at risk due to the closure, even with full utilization of available pipeline bypasses. The current crisis echoes the Iran-Iraq War in the 1980s, when Iraqi forces repeatedly targeted Kharg Island to cripple Iran's oil exports.
Kharg Island, located 25 kilometers (16 miles) off the Iranian coast, is the primary terminal for nearly all of Iran's oil exports, handling approximately 90% of the nation's total. The island has a loading capacity of about seven million barrels per day and can load 10 supertankers simultaneously. It is connected to offshore oilfields such as Aboozar, Forouzan, and Dorood, as well as major mainland oilfields, via a network of pipelines. While Iranian media claims that oil infrastructure on Kharg Island was not damaged in recent U.S. strikes, a *New York Times* report cited an Iranian official stating that the attack halted a significant portion of Iran's oil exports.
The closure of the Strait of Hormuz and potential damage to Iranian oil infrastructure have significant implications for global trade and development. Asian economies, including China, India, Japan, and South Korea, are particularly vulnerable due to their reliance on Middle Eastern oil and LNG. The disruption has already forced Middle Eastern producers, including Saudi Arabia, Iraq, and Kuwait, to reduce output. The IEA has announced a coordinated release of 400 million barrels from global emergency oil stockpiles to mitigate the impact of the disruption.
Energy analysts predict that global crude oil prices could surge to as high as $150 per barrel if the Strait of Hormuz remains closed for the next four to eight weeks. The situation is further complicated by Iran's threat to attack American and Israeli banks in retaliation for strikes. Investors should closely monitor upcoming statements from the Iranian government regarding export disruptions, as well as any potential resolutions to the conflict that could reopen the Strait of Hormuz and stabilize global energy markets.