The repercussions of the Strait of Hormuz blockade on the Iranian economy
Amid escalating geopolitical tensions in the Middle East, the profound economic repercussions of any military action or naval blockade are being discussed. A potential US naval blockade of the Strait of Hormuz would deliver a devastating and direct blow to the Iranian economy. Daily losses are estimated at approximately $435 million, comprised of $276 million in lost export revenue and $159 million in disruptions to essential imports. These figures translate to monthly losses of roughly $13 billion. These estimates were reported by Mayad Maleki, a fellow at the Foundation for Defense of Democracies in Washington and former associate director at the US Treasury Department’s Office of Foreign Assets Control, as published by Al Arabiya.net.
The strategic and historical importance of the Strait of Hormuz
The Strait of Hormuz is one of the world's most strategically important waterways, connecting the Persian Gulf to the Gulf of Oman and the Arabian Sea. Historically, this strait has been a vital artery for the global economy, with approximately one-fifth of the world's oil consumption passing through it. For Iran, it is not merely a waterway, but the primary gateway connecting it to global markets. Any closure or restriction of navigation through it would not only signify a local crisis, but could also trigger a global energy crisis, potentially leading to sharp fluctuations in oil prices and directly impacting energy-importing countries, particularly in Asia, which is the largest importer of Iranian oil.
Complete paralysis of foreign trade
The real danger of these figures lies in Tehran's dependence on this waterway. Economic data indicates that over 90% of Iran's foreign trade, totaling approximately $109.7 billion annually, passes through the Persian Gulf. The Iranian economy is structurally dependent on the oil and gas sectors, which provide about 80% of government export revenues and constitute roughly 23.7% of the country's GDP. Consequently, any disruption to this route would lead to a near-total paralysis of the domestic economic cycle and a halt to supply chains.
Oil exports and complex banking restrictions
Before discussing any potential blockade, it's important to note that Iran already faces significant economic challenges due to international sanctions. Tehran used to export approximately 1.5 million barrels of crude oil per day, generating revenues of around $139 million daily (at an average price of approximately $87 per barrel). However, a substantial portion of these revenues does not actually reach the Iranian treasury due to strict banking restrictions and sanctions imposed on the Iranian financial system.
However, in the event of a naval blockade, these revenues would immediately plummet to zero. This is because 92% of Iran's crude oil exports are shipped via the strategic Kharg Island terminal in the Persian Gulf. Without any viable land routes or alternative pipelines, Tehran's daily oil revenues of $139 million would vanish instantly.
Petrochemical sector: additional heavy losses
The anticipated losses are not limited to crude oil; they extend to the vital petrochemical sector, a major source of hard currency. Statistics indicate that Iran exported $19.7 billion worth of petrochemical products in just the first nine months of the 2024/2025 fiscal year, equivalent to approximately $54 million per day.
Almost all of these products are shipped through major ports such as Asaluyeh Port, Imam Khomeini Port, and Shahid Rajaee Port. The major problem is that all of these ports lie entirely within the geographical scope of any potential blockade. Given the impossibility of transporting these massive quantities of products overland to alternative markets, the sector's revenues would be completely wiped out, exacerbating the economic disaster.
