Oil Prices Surge Above $100 as Strait of Hormuz Remains Closed

Brent crude oil climbed above $100 a barrel on March 12, 2026, fueled by concerns over the closure of the Strait of Hormuz and escalating attacks on ships in the Gulf. The disruption to oil transit is raising fears of a significant supply shock and potential economic repercussions.

The Strait of Hormuz: A Critical Chokepoint

The Strait of Hormuz, situated between Oman and Iran, is a strategically vital waterway connecting the Persian Gulf to the Gulf of Oman and the Arabian Sea [1]. It is capable of handling the world’s largest crude oil tankers and serves as one of the most important oil chokepoints globally [1]. Approximately a fifth of the world’s daily oil production passes through this narrow strait [3].

Escalating Tensions and Attacks

The current crisis stems from heightened tensions in the Middle East, including attacks on commercial shipping. On March 12, 2026, a tanker carrying oil was damaged by fire following an attack near Basra, Iraq [2]. Iran’s new leader, Mojtaba Khamenei, warned that the Strait of Hormuz would remain closed as a “tool of pressure” [2], and also threatened further attacks against US military bases in the region [2]. These actions mark an escalation in Iran’s campaign to generate economic pressure on the United States and Israel [3].

Oil Price Surge and Economic Impact

Brent crude, the global oil benchmark, rose 9% to trade just above $100 a barrel on March 12, 2026 [2]. WTI, the US benchmark, experienced a similar increase, trading above $95 a barrel [2]. Sustained oil prices in the $90-$100 range could drive up inflation and slow economic growth in major economies [2].

International Response and Emergency Reserves

In response to the escalating crisis, the International Energy Agency (IEA) warned that oil supply would shrink further if ships did not resume transit through the Strait of Hormuz [2]. The IEA described the situation as creating the largest supply disruption in the history of the global oil market [2]. To mitigate the impact, 32 of the world’s largest economies, including the United States, agreed to release 400 million barrels of oil from emergency reserves – the largest release in history [2]. The US plans to release 172 million barrels from its Strategic Petroleum Reserve [3].

Market Reactions

Asian markets reacted negatively to the news, with Tokyo’s Nikkei 225 losing 1.5 percent, South Korea’s Kospi falling 1 percent, and Hong Kong’s Hang Seng dropping 1.2 percent [3]. The Shanghai Composite index shed 0.5 percent, and Australia’s S&P/ASX 200 dropped 1.6 percent [3].