Iran’s Blockade of Strait of Hormuz Halts 20% of Global Energy Flow and Spikes Oil Prices 36%

The Strait of Hormuz, through which roughly 20% of the world's oil and nearly 20% of global liquefied natural gas (LNG) flow, has effectively become impassable, triggering what energy experts are describing as an unprecedented crisis for global energy markets. The waterway that once saw as many as 90 tankers per day now sits nearly empty, with only a handful of Iran-linked vessels moving through the narrow passage. This dramatic collapse in shipping traffic follows weeks of military tensions, Iranian attacks on commercial vessels, and what appears to be a deliberate blockade strategy that has halted international commerce through one of the planet's most critical chokepoints.

The immediate trigger for the crisis was Iran's military response to what sources describe as a U.S.-Israeli war, which prompted Tehran to target ships and infrastructure in the Strait of Hormuz. Commercial vessels have been attacked with drones, and the threat of weaponized Iranian speedboats remains acute. War-risk insurance premiums have skyrocketed, making transit prohibitively expensive for most operators. The result is a de facto closure that has forced the world's largest oil producers to slash output dramatically. Iraq has cut production by 60%, dropping from approximately 4.3 million barrels a day to between 1.7 and 1.8 million barrels daily. Kuwait and the United Arab Emirates have also reduced output as storage facilities reached capacity.

Energy prices have responded with stunning volatility. Crude oil prices surged 36% in a single week, while spot prices for LNG in Asia—which relies heavily on energy imports through the strait—have nearly doubled since the conflict began. European natural gas prices have climbed about 50%. According to Daniel Yergin, S&P Global Vice Chairman and a leading authority on energy history, the current situation represents "the biggest energy disruption we've ever seen," despite oil prices remaining in the $90 range and falling short of inflation-adjusted historical highs. Yergin emphasized that the disruption extends far beyond oil, affecting global supplies of fertilizer, helium, aluminum, and petrochemicals, with Asia bearing the brunt as approximately 80% of regional oil supplies and 90% of LNG shipments flow through the Strait.

So far, the world's wealthier nations have managed to absorb the shock by drawing down strategic reserves and paying premium prices to secure alternative supplies, preventing immediate demand destruction. However, traders and analysts are warning that this buffer is temporary. A harsh adjustment appears imminent, particularly for developing regions and Asia, where shortages and rationing are already emerging. The divergence between resilient financial markets and the real-world energy scarcity facing billions of people underscores the fragility of the current situation. The critical question facing global energy markets now is the duration of this conflict and whether diplomatic efforts can restore shipping through the Strait of Hormuz.