President Donald Trump has threatened to impose what he called the ‘most crushing economic operation ever taken against any country’ on Iran, as Trump Iran economic sanctions rhetoric sent oil markets sharply higher and the two countries remained at odds over control of the Strait of Hormuz.
Trump made the threat in a lengthy post on Truth Social, accusing Tehran of failing to accept a deal and warning of what he described as ‘economic warfare and isolation on an unprecedented scale’. ‘These maniacs are on the ropes,’ he wrote, calling his economic measures ‘historic’ and saying they had the ability to ‘cripple them’. He added that any country providing ‘any type of lifeline’ to Tehran would face ‘tremendous economic consequences’.
Trump also stated there were no talks ‘going on, or scheduled’ with Iran, closing off the immediate prospect of diplomacy. The 60-day ceasefire between the US and Iran came to an end on Monday, and Tehran has since described the prospect of a future agreement as not dead but in a ‘coma’.
Oil prices climb sharply on Hormuz tensions
Oil prices were holding above $91 a barrel as the stand-off continued, with Trump insisting crude must keep flowing through the narrow waterway even as stockpiles have depleted. The market reaction has been pronounced: US crude closed higher by 9.4% at $78.14 per barrel, while international Brent crude jumped 9.6% to $83.30 per barrel, according to NBC News.
Figures from the International Energy Agency published this week showed crude inventories increased by 4.4 million barrels last week. Distillate stocks, however, declined by 1.5 million barrels to their lowest level in more than a month, underscoring the fragility of supply margins if the Hormuz dispute escalates further.
Iranian exports and the Trump Iran economic sanctions pressure
The scale of what Trump Iran economic sanctions could mean in practice is not trivial. Between November 2025 and January 2026, Iranian crude oil exports averaged about 1.5 million barrels per day, according to data from Kpler cited by the Atlantic Council. A sustained squeeze on that volume would remove a substantial flow from global supply at a moment when distillate inventories are already under pressure.
The UAE has moved quickly in the same direction as Washington, announcing a suspension of financial and economic transactions with Iran after accusing Tehran of launching ballistic missiles at its territory. The move signals that regional actors are aligning behind the pressure campaign, potentially narrowing Iran’s options for routing trade and finance through Gulf neighbours.
Trump’s Truth Social post was explicit about third-party consequences. Any government or institution seen as providing support to Tehran, he warned, would face economic retaliation from Washington. That warning extends the reach of the US pressure campaign well beyond bilateral relations and introduces risk for trading partners in Asia, which have historically absorbed a significant share of Iranian crude exports.
Markets are watching the Strait of Hormuz closely. The waterway handles a large portion of global seaborne oil trade, and any disruption to passage there would affect supply chains far beyond the immediate region. Trump has said he expects oil to keep flowing, but the combination of a collapsed ceasefire, no scheduled talks and escalating rhetoric has left traders pricing in a higher risk premium.
Tehran’s characterisation of any future deal as being in a ‘coma’ rather than dead leaves a narrow opening for negotiations to resume, but the sequence of events since Monday (the ceasefire expiry, Trump’s Truth Social post, the UAE’s financial suspension) points in the opposite direction for now. The next test will be whether third-party nations with economic ties to Iran treat Trump’s warning as a credible threat or call his bluff.
