Iran to shut the Strait of Hormuz: Why it matters?

In a move that could jolt global energy markets, Iran’s parliament has approved a measure to close the Strait of Hormuz—a critical maritime chokepoint for global oil shipments—following US airstrikes on Iranian nuclear facilities. State-run Press TV reported on Sunday (June 22) that the proposal reflects broad consensus within the Iranian legislature, although the final decision rests with the country’s Supreme National Security Council.The Strait of Hormuz, a narrow channel at the mouth of the Persian Gulf, serves as a conduit for nearly 20% of the world’s daily oil output, transporting exports from major producers including Saudi Arabia, Iraq, and the UAE. For India, the stakes are especially high as about 40% of its crude oil imports and over half of its LNG pass through this route.

Major General Kowsari, a member of the parliamentary National Security Committee, stated the measure reflects Iran’s intent to respond decisively but lawfully to the US assault. If approved, it would signal one of the most direct and economically consequential retaliatory steps in the ongoing confrontation.
Citigroup analysts warned of significant market turbulence if the closure proceeds. “Any closure of the Strait could lead to a sharp price spike,” noted a recent memo, forecasting Brent crude could surge to $90 a barrel under their bullish scenario—even though they view a prolonged halt in shipping as unlikely.
Major energy players are already drawing up fallback plans. “If that artery is blocked, for whatever reason, it has a huge impact on global trade,” Shell CEO Wael Sawan said at the Japan Energy Summit in Tokyo. “We have plans in the eventuality that things deteriorate.”