There has also been severe damage across Iran’s petrochemical and defense sectors, which together have cost an estimated 100,000 jobs.By Ailin Vilches Arguello, The AlgemeinerAs Iran struggles to rebuild damaged military and energy infrastructure amid the current ceasefire, Israel estimates that a US naval blockade of Iranian ports will slash the regime’s oil exports by roughly 80 percent, nearly severing one of Tehran’s last remaining economic lifelines.According to Israeli security assessments, the US closure of the Strait of Hormuz — a critical global energy chokepoint through which about one-fifth of the world’s oil supply passes — triggered an immediate and dramatic collapse in Iran’s revenue that will lead to a loss of more than $1 billion a month, Walla reported.US President Donald Trump has claimed the regime is losing about $500 million a day as a result of the blockade.Some experts, such as Miad Maleki of the Foundation for Defense of Democracies think tank, have put the figure at roughly $450 million lost in daily economic activity for Iran.Regardless of the specific amount, given that energy exports remain the backbone of the regime’s economy, what is left of oil revenues now amounts to little more than a fragile lifeline keeping Tehran temporarily afloat as financial pressure continues to mount.Even with the naval blockade in place, Iranian authorities have managed to maintain a limited flow of exports by transporting oil from inland production fields to the Gulf of Oman through the multi-billion-dollar Gura–Jask pipeline, an overland route that moves roughly 300,000 barrels per day to global markets.Israeli officials assess that the blockade and resultant shortfall for Tehran could set off a chain reaction of disruptions, including the shutdown of entire segments of the oil industry.They also point to severe damage across Iran’s petrochemical and defense sectors, which together have cost an estimated 100,000 jobs at multiple levels, arguing that the cumulative impact is pushing the Iranian regime into a corner.After repeated efforts to bring Iran back to the negotiating table, the Trump administration escalated pressure on Tehran earlier this month by imposing a naval blockade on vessels entering or leaving Iranian ports through the Strait of Hormuz, aiming to force a deal that would bring an end to the conflict.Since the start of the war earlier this year, Iran has used control over the Strait of Hormuz as a major source of leverage, militarizing the waterway and sharply restricting maritime traffic through one of the world’s most critical shipping corridors.Iran has also signaled it intends to maintain control over the strategic shipping lane even after the war ends, potentially imposing transit fees framed as compensation for wartime damage.After Trump extended the ceasefire indefinitely on Tuesday to allow for renewed diplomatic efforts, it now remains to be seen whether Iran will agree to return to negotiations, as questions persist over whether both sides can bridge widening differences to restart talks.According to The New York Times, US officials previously proposed a 20-year halt to Iranian uranium enrichment, which Iranian negotiators countered with a five-year suspension that Washington rejected.The White House has also reportedly insisted that Iran dismantle major enrichment sites and surrender more than 400 kilograms of highly enriched uranium.Even as the regime faces one of its most severe economic crises in decades, Iranian authorities have continued pouring billions into rebuilding military and nuclear infrastructure and supporting regional proxy forces, prioritizing strategic confrontation with Israel over urgent domestic needs such as the country’s worsening water crisis.The regime has spent billions of dollars supporting its terrorist proxies across the Middle East and operations abroad, with the Quds Force, Iran’s elite paramilitary unit, funneling funds to the Lebanese group Hezbollah, in defiance of international sanctions.According to the US Treasury Department, Iran provided more than $100 million per month to Hezbollah in 2025, with $1 billion representing only a portion of Tehran’s overall support for the terrorist group, using a “shadow financial system” to transfer funds to Lebanon.The post Israel estimates US blockade of Strait of Hormuz to slash Iran oil exports by 80% appeared first on World Israel News.