Iran briefly reopened the Strait of Hormuz to commercial shipping on Friday before closing it again after approximately 20 hours, sending oil prices on a volatile ride and highlighting the fragile nature of Middle East ceasefire negotiations. The reversal came after Tehran accused Washington of failing to respect terms of their tentative agreement.
Foreign Minister Abbas Araghchi initially declared the strategic waterway "completely open" for commercial vessels during the remainder of the Lebanon ceasefire, causing Brent crude to plunge from $98 to $88 per barrel within hours. The S&P 500 surged 1.2% to an all-time high, while European markets rallied with Paris and Frankfurt gaining around 2%.
However, the optimism proved short-lived. Iran's parliamentary speaker Mohammad Bagher Ghalibaf warned that "the strait of Hormuz will not remain open" if the US blockade continued, adding that regulations governing the waterway "will be determined by the field, not by social media" in a pointed reference to President Trump's celebratory posts. France 24 reported that Iran closed the strait again after roughly 20 hours, citing US non-compliance with agreement terms.
The Strait of Hormuz carries one-fifth of global oil and liquified natural gas supplies through its narrow waters south of Iran. The waterway has been effectively shut since US and Israeli military strikes on Iran in late February, reducing tanker traffic to a trickle and pushing oil prices from under $70 per barrel to peaks above $119 in March. The closure has also disrupted fertilizer supplies, with a third of key agricultural chemicals typically passing through the strait.
Trump claimed on Truth Social that Iran had agreed "to never close the Strait of Hormuz again" and would suspend its nuclear program indefinitely without receiving frozen US funds. He told Bloomberg that weekend talks to end the broader conflict were "probable" and suggested to Reuters that the US would retrieve Iran's enriched uranium at "a nice leisurely pace." Iranian authorities made no immediate comment on these nuclear claims.
The outlets framed this volatile situation through distinctly different lenses. The Independent led with market euphoria, emphasizing record stock gains and relief for fuel-dependent companies like airlines and cruise operators. The BBC took a more cautious tone, highlighting maritime organizations' warnings about ongoing mine threats and unclear safety conditions. The Guardian focused on the political tensions, prominently featuring Iranian officials' warnings about US blockade policies and questioning the sustainability of any opening.
The timing reveals the precarious nature of Middle East diplomacy. Iran's announcement coincided with a new 10-day Lebanon ceasefire between Israel and Hezbollah, yet Israeli Prime Minister Benjamin Netanyahu simultaneously posted a video declaring Israel was "not done yet" with the militant group. Reports emerged of an Israeli drone strike killing one person in southern Lebanon even as the ceasefire held elsewhere.
This episode illustrates how economic leverage has become central to conflict resolution in the region. Iran's ability to choke global energy supplies through the strait gives Tehran significant bargaining power, while US naval blockades of Iranian ports provide Washington with its own pressure point. The 20-hour opening and closing cycle suggests both sides are testing the boundaries of their respective positions rather than committing to lasting agreements.
The market volatility also demonstrates the global economy's vulnerability to Middle East tensions. Airlines, cruise operators, and homebuilders all surged on hopes of lower fuel costs, while the Federal Reserve faces pressure to adjust interest rate policies based on oil price movements. The International Energy Agency had warned that Europe has "maybe six weeks" of remaining jet fuel supplies, making any sustained closure particularly damaging.
This story was covered by France 24 (centre, French international), The Independent (centre-left, UK), BBC Business (centre, UK public broadcaster), and The Guardian (left-leaning, UK broadsheet).
Watch for weekend negotiations in Islamabad that Trump suggested could produce a broader deal. The sustainability of any Strait of Hormuz reopening will depend on whether Washington agrees to lift its naval blockade of Iranian ports, a concession Trump has so far refused to make. Oil markets will likely remain volatile until both sides clarify their long-term commitments beyond the current Lebanon ceasefire period.
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