Global energy markets experienced significant fluctuations during the week of May 25, 2026, as tentative progress toward a U.S.–Iran peace deal was countered by renewed military hostilities near the Strait of Hormuz. The outcome of these high-stakes negotiations remains the primary driver of international market price assessments as the conflict enters its fourth month.
Market pricing during the five-day period reflected a fragile equilibrium between diplomatic hope and military reality. Brent crude futures fell 6% to $97.43 on Monday, May 25, the lowest level in two weeks, following reports that mediators from Pakistan and Qatar were nearing an outline agreement in Tehran. However, the benchmark quickly rebounded above the $100 threshold on Tuesday after the U.S. Central Command conducted what it termed “self-defense strikes” against Iranian missile launchers and mine-laying vessels. By Friday, prices corrected once again, with Brent trading at approximately $92 per barrel, marking a 19% drop for the month of May as investors weighed the circulation of a draft 60-day memorandum of understanding.
The week’s diplomatic activity centered on Doha, where Iranian parliamentary speaker and chief negotiator Mohammad Bagher Ghalibaf sought the release of $12 billion in frozen assets as a core condition for reopening the waterway. Secretary of State Marco Rubio and his Pakistani counterpart, Mohammad Ishaq Dar, held consultations in Washington to bridge gaps in a proposal that envisions a return to pre-war shipping volumes within 30 days of a finalized agreement. However, geopolitical complexity intensified as President Trump issued a “mandatory” request for regional powers like Saudi Arabia and Qatar to join the Abraham Accords, a move that analysts described as a “non-sequitur” that baffled Middle Eastern diplomats.
The physical disruption to global supply remains the most acute structural challenge for the industry. The effective closure of the Strait of Hormuz has removed approximately 14.4 million barrels of daily supply — roughly 20% of global production — since the conflict began on February 28. While record releases from emergency stockpiles have provided a 2-million-barrel daily buffer, these measures are expected to expire by July, leaving global inventories at “critically low” levels. Saudi Aramco has warned that even an immediate reopening would not solve the crisis, as damaged infrastructure in the Gulf, including Qatari natural gas facilities hit in March, could take three to five years and $20 billion to fully repair.
The energy shock continues to exert profound pressure on major economies and their respective central banks. In the United Kingdom, petrol prices reached a peak of 159.43p per liter this week, while the domestic energy price cap is forecast to rise by 13% in July. In the United States, average gasoline prices sat at $4.43 per gallon on Thursday, nearly 50% higher than pre-war averages. These inflationary headwinds have fundamentally altered the monetary outlook; Federal Reserve Chair Kevin Warsh, who assumed office on May 22, must now manage a resurgent inflation rate that hit a three-year high of 3.8% in April, effectively removing the possibility of near-term interest rate cuts.
Looking ahead, analysts remain cautious regarding the durability of any potential truce. Fatih Birol, head of the International Energy Agency, has warned that the global market could enter a “red zone” in July and August as seasonal demand peaks while production capacity remains restricted. Experts at Barclays maintain an average Brent price forecast of $100 for the remainder of 2026, citing the prolonged erosion of global fuel stockpiles. With Oxford Economics suggesting that inflation risks for 2027 are now “skewed to the upside,” the global energy sector appears to have transitioned into a period of structural instability that will persist long after the current tactical hostilities cease.