The Chokepoint War: Iran's Strait of Hormuz Blockade Sends Oil Markets Into Crisis as Three More Ships Are Hit

Three more merchant vessels were struck by projectiles in the Persian Gulf on March 11, bringing the total number of ships attacked since the start of the 2026 Iran war to at least 14 [1][3]. In the same breath, Iran's military spokesperson Ebrahim Zolfaqari issued a stark warning: "Get ready for oil to be $200 a barrel, because the oil price depends on regional security, which you have destabilized" [2].

The attacks and the threat mark a dramatic escalation of what has become the most significant disruption to global energy supplies since the 1970s oil crises — a blockade of the Strait of Hormuz, the narrow waterway through which roughly 20% of the world's oil and gas flows daily [5].

The Attacks

The day's violence was spread across the Gulf. A container ship was struck by an unknown projectile approximately 35 nautical miles north of Jebel Ali, a major port near Dubai in the United Arab Emirates, according to the United Kingdom Maritime Trade Operations center [1]. Separately, two foreign oil tankers were left ablaze in Iraqi waters after being hit near the port of Umm Qasr, close to Basra. At least one crew member was killed, and 38 were rescued, Iraqi port officials said [1][3].

The attacks were not isolated. Japan-based Ocean Network Express confirmed that its 6,700-TEU container vessel ONE Majesty was hit while anchored in the port of Sharjah, UAE [3]. A Thailand-flagged bulk carrier, the Mayuree Naree, was struck just north of Oman in the strait itself [3]. Iran also targeted Dubai International Airport and oil infrastructure across the region in a broader campaign that military analysts described as one of the heaviest single days of attacks since the war began on February 28 [9].

How the Strait Was Shut Down

The crisis traces back to February 28, 2026, when the United States and Israel launched joint airstrikes on Iranian military and nuclear facilities — strikes that also killed Iran's supreme leader Ali Khamenei [5]. Iran's retaliation was swift and far-reaching. The Islamic Revolutionary Guard Corps fired missiles and drones at U.S. military bases, Israeli cities, and Gulf state capitals including Abu Dhabi, Riyadh, and Manama [9].

But the most consequential response was at sea. The IRGC declared the Strait of Hormuz closed and warned that "the heroes of the Revolutionary Guard and the regular navy will set those ships ablaze" if any attempted to pass [2]. That was not an idle threat. In the first week of March, tanker traffic through the strait collapsed by more than 90%, with over 150 ships anchoring outside the waterway to avoid the risk [5][11]. Major container lines — Maersk, CMA CGM, and Hapag-Lloyd — suspended all transits [11].

Today, the strait is effectively shut. The only vessels still moving through are so-called "shadow fleet" tankers — vessels that operate outside international regulations, ignore sanctions, and do not carry standard insurance [12].

Source: FRED / U.S. Energy Information Administration

Data as of Mar 11, 2026CSV

The Oil Price Shock

The market response has been historic. In the first week after the strikes, WTI crude posted its largest weekly gain in the history of futures trading dating back to 1983, surging 35.6% [6]. Brent crude briefly touched $119 per barrel before pulling back to around $100 — still roughly 38% higher than where it stood before the war began [5][6].

The scale of the disruption is staggering. Approximately 20 million barrels of crude oil and petroleum products transit the Strait of Hormuz each day [11]. Iraq and Kuwait have already cut output by 70% and declared force majeure as onshore storage fills up with oil that cannot be exported [5]. Qatar halted all liquefied natural gas production after an Iranian drone attack, sending European gas prices nearly doubling [11].

Zolfaqari's warning of $200 oil, while treated skeptically by some analysts, reflects a plausible worst-case scenario. If the strait remains closed for months rather than weeks, global supply losses of roughly 15 million barrels per day would far outstrip the capacity of any strategic reserve to compensate [8]. Analysts at J.P. Morgan had previously modeled that a full Hormuz closure could push Brent above $150 within weeks [5].

The Insurance Crisis

Beyond the physical attacks, a parallel crisis has emerged in the maritime insurance market. Leading global insurers — including NorthStandard, the London P&I Club, and the American Club — have suspended war risk coverage for vessels operating in the Persian Gulf [7]. Without war risk insurance, no major shipping line will enter the waterway, regardless of whether the physical threat recedes.

The consequences are measured in dollars. Tankers valued at $200–$300 million now face insurance premiums of approximately $7.5 million per voyage — up from roughly $625,000 before the conflict, an increase of more than 1,000% [7]. The benchmark freight rate for Very Large Crude Carriers hit an all-time high of $423,736 per day [7].

In response, the Trump administration announced a $20 billion government-backed reinsurance program, with Chubb as lead underwriter, working through the U.S. International Development Finance Corporation [14]. The program is designed to incentivize tankers to resume Hormuz transits under U.S. Navy escort — but as of March 12, no commercial vessel has tested the arrangement.

The Emergency Reserve Response

On March 11, the International Energy Agency announced the largest coordinated drawdown of strategic petroleum reserves in its 52-year history. All 32 IEA member countries unanimously agreed to release 400 million barrels — more than double the 182.7 million barrels released in 2022 following Russia's invasion of Ukraine [4].

The United States separately committed to tapping 172 million barrels from its Strategic Petroleum Reserve as part of the effort [13]. IEA Executive Director Fatih Birol called it "a major action aiming to alleviate the immediate impacts of the disruption in markets" [4].

But analysts immediately questioned whether it would be enough. At a loss rate of roughly 15 million barrels per day from the Hormuz closure, the 400-million-barrel release covers less than a month of the shortfall [8]. "Strategic reserves can buy time," said one commodity strategist quoted by Fortune. "They cannot replace the Strait of Hormuz" [8].

Source: GDELT Project

Data as of Mar 12, 2026CSV

Trump's Dilemma

President Trump has oscillated between declaring the war "very complete" and threatening further escalation. On March 8, he said the United States was "considering taking over the Strait of Hormuz" to ensure oil flows resume [10]. He subsequently threatened Iran with consequences "at a level never seen before" if the blockade continued [10].

But military analysts describe Trump's options as limited. Forcibly reopening the strait would require sustained minesweeping operations, suppression of Iranian coastal missile batteries along the 21-mile-wide waterway, and continuous naval escort — a mission that could take weeks to establish and would risk further Iranian escalation [10]. An IRGC commander declared on March 4 that Iran maintains "complete control" of the strait [10].

The Pentagon has been weighing what it has internally dubbed "Operation Epic Escort" — a plan to use U.S. Navy warships to shepherd commercial tankers through the strait — but logistics and the risk of direct confrontation with Iranian forces have slowed implementation [3].

Global Fallout

The ripple effects extend far beyond oil. UNCTAD warned that roughly one-third of global fertilizer trade transits the Strait of Hormuz, threatening food production worldwide [15]. China, which imports 40% of its oil and 30% of its LNG through the strait, faces acute supply pressure [15]. Fuel shortages and rationing have already been reported in parts of Asia [11].

For American consumers, the impact is arriving at the gas pump. U.S. gasoline prices have climbed above $4 per gallon, the highest since late 2023 [13]. If oil approaches the $200 mark Iran has threatened, analysts project gasoline could surpass $5 per gallon [13]. Beyond fuel, disrupted supply chains are expected to raise prices for packaging, automotive components, and consumer goods that depend on petrochemical inputs [11].

The Gulf monarchies themselves are caught in the crossfire. The Carnegie Endowment described their position as "between Iran's desperation and the U.S.'s recklessness" — targeted by Iranian missiles for their alliance with Washington while simultaneously watching their economies hemorrhage from the loss of export capacity [9].

What Comes Next

The situation remains acutely unstable. Iran has shown no indication of easing its blockade, instead escalating with each passing day. The IEA reserve release buys weeks, not months. The U.S. reinsurance program has yet to put a single tanker back in the water. And with Brent crude hovering near $100 and the IRGC promising $200, the global economy is confronting an energy shock of a magnitude not seen in half a century.

The 14 ships attacked so far — with three struck in a single day — represent more than maritime casualties. They are the physical manifestation of a strategic calculation by Tehran: that the world's dependence on a 21-mile-wide waterway gives Iran leverage that no amount of airstrikes can eliminate. Whether that calculation holds, or whether it provokes a military response that widens the war further still, is the question on which the global economy now turns.