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Iran Economy Crisis: US Maritime Blockade Disrupts Oil Exports — AI-generated representative image. An oil tanker sits in the Strait of Hormuz amid ongoing US maritime blockade disrupting Iran's oil exports.

Editorial Team

Strait of Hormuz blockade, Houthi Red Sea attacks, and Caspian strikes compound Iran's inflation and sanctions crisis.

Iran and the United States have returned to mediated talks with military action temporarily suspended, but the war continues to disrupt international maritime corridors beyond the Strait of Hormuz while deepening domestic economic turmoil in Iran. The near-total closure of the strategic waterway, Houthi-led disruptions in the Red Sea, and a Ukrainian strike on an Iranian vessel in the Caspian Sea have kept tensions high across multiple fronts.

The expanding scope of the conflict threatens Iran's oil-dependent economy at a time when the country is already grappling with chronic inflation, fuel shortages, rolling electricity cuts, and rising poverty. With the US military enforcing a second naval blockade of Iran's southern ports since mid-July, Tehran faces mounting pressure on its export revenues and difficult policy choices, including a potential fuel price hike that carries risks of social unrest.

Maritime Disruptions Across Three Waterways

The US military's Central Command (CENTCOM) said that as of Saturday, soldiers had redirected 12 commercial vessels attempting to run the blockade imposed since mid-July, disabled two that did not comply, and boarded two others "to ensure total compliance." CENTCOM released footage of heavily armed soldiers rappelling from a helicopter onto the deck of the Charminar, an Iran-linked oil tanker under US sanctions since last year for alleged involvement in the Shamkhani network of shadow fleet operations.

Iran has continued redirecting multiple ships daily to keep the Strait of Hormuz closed, with its armed forces vowing not to bow to pressure. On Sunday, Iranian media reported that a vessel exploded after striking a naval mine in the strait.

Meanwhile, the Houthis in Yemen declared a blockade against Saudi Arabia last week, turning back or striking vessels transiting near the Bab al-Mandeb strait and bombing Saudi oil facilities. Saudi authorities have responded with major air attacks across Yemen.

In the Caspian Sea, Ukraine confirmed it struck a vessel, with President Volodymyr Zelenskyy alleging it carried Iran-linked military cargo. Iran said it was a commercial vessel importing iron from Russia, bound for Bandar Anzali, and reported one sailor killed and three wounded. Tehran summoned Kyiv's charge d'affaires to deliver a strong protest and a warning that "the act will not go unanswered."

Background and Escalation Timeline

The US and Israel launched a war against Iran in late February. The first US naval blockade was imposed on April 13 and lasted a little over two months, during which Iranian authorities reported near-zero crude exports. The signing of a memorandum of understanding (MoU) on June 17 led to the partial reopening of the Strait of Hormuz and the lifting of the blockade, allowing Iran to export oil stored on supertankers waiting in its territorial waters.

That reprieve proved temporary. The US reimposed the blockade in mid-July, and CENTCOM has now stopped extensive bombing strikes against Iran for two nights, with US Ambassador to the United Nations Mike Waltz saying President Donald Trump is giving talks "some space." Iran has also halted retaliatory attacks across the region, and Foreign Ministry spokesman Esmaeil Baghaei said discussions with Oman on reopening the Strait of Hormuz have been productive.

Iran's infrastructure suffered significant damage during the conflict. The government reported last month that about 230 million cubic metres per day of Iran's pre-war natural gas output of roughly 650 million cubic metres was lost due to US and Israeli bombing, worsening electricity and petrochemical shortages.

Economic Impact and Official Data

Iran's Ministry of Petroleum said on Saturday that the country sold $11.5 billion of crude oil during the war and $6.5 billion during the period of the now-suspended MoU, with the combined figure representing 60 percent of the full-year oil revenue target in the budget. The ministry said increased oil prices generated about $3 billion in additional value in the first half of the year, and $11 billion from the yields has been transferred to government coffers despite US embargoes.

A prolonged second blockade risks further reducing export revenues and piling pressure on Kharg Island, through which about 90 percent of Iran's crude oil exports pass. Iran faces a petrol deficit of more than 20 million litres per day, managed through limited imports, blending fuel components, and drawing on pre-war inventories. The government is seriously considering doubling the price of a third tier of monthly petrol quotas allocated to individuals.

Non-oil trade with China, Iran's largest trading partner, has fallen by 75 percent in March and June compared with the previous year, according to Chinese customs data. A report by the Saba Pension Strategies Institute found that while slightly more than 30 percent of Iranians lived below the poverty line five years ago, that rate was projected to reach 45 percent this year and was still rising.

What Lies Ahead

Sekhavat Asadi, managing director of the Pars Special Economic Energy Zone, said on Sunday that Iran expects to restore more than 100 million cubic metres per day of lost gas production capacity within the coming months. The Petroleum Ministry has warned that tighter monthly fuel consumption caps may be imposed if the petrol imbalance persists.

President Masoud Pezeshkian has ordered that industries not be cut off from electricity until late September to protect the jobs market. The government's potential fuel price hike comes against a backdrop of deadly protests triggered by similar increases in December and November 2019, raising the stakes for any new policy decision. The Caspian Sea incident has raised concerns that the waterway, previously used safely for trade, could become the scene of further military confrontations.