• Citi warns a 1970s-style oil shock could materialize if the Strait of Hormuz remains closed into early 2027, with oil prices potentially hitting $130/barrel.
  • The Strait has been effectively shut since February 28, 2026, following U.S. military strikes on Iran, causing the largest oil market disruption in history.
  • Despite the severity, markets have shown surprising resilience, though Citi notes global growth has been trimmed and inflation expectations raised.

Citi has issued a stark warning that a rerun of the 1970s oil shock is possible if the Strait of Hormuz remains closed into early 2027. In an April 2026 research report, the bank's analysts said oil prices could surge to $130 per barrel under a severe scenario, echoing the energy crises of the 1970s. The Strait has been effectively closed since February 28, following U.S. military strikes on Iran that reignited Middle East conflict.

The disruption has already triggered the largest oil market shock in history, with global oil supply crashing by 10.1 million barrels per day in March 2026. Brent prices surged 65% month-on-month, a record monthly rise, adding $46 per barrel. Citi forecasts that if the blockade continues for another month, oil could reach $110 per barrel, with further upside to $130 by end of June.

“Without a deal, the Strait could remain closed into early 2027, and that would recreate the conditions of the 1970s oil shock,” the report said, according to people familiar with the matter. The bank had previously warned in June 2025 that a prolonged closure was unlikely, a forecast now proven wrong.

The economic fallout is already being felt. Citi trimmed its 2026 global growth forecast to 2.7%, from 2.9%, and raised inflation expectations. However, the bank noted that the global economy now has “more ways to absorb shock than in past oil disruptions,” pointing to greater efficiency and diversification. Still, the loss of global crude and product inventories could reach 1.3 billion barrels if the Strait remains blocked for four more weeks.

“Markets are shrugging off the oil shock,” one analyst noted, highlighting a paradox where equity markets have shown resilience rather than panic. But industry experts warn that a structural shift in global oil and gas supply chains is underway, exposing vulnerabilities of maritime chokepoint dependence.

The World Bank has confirmed the disruption sent oil prices surging in its latest Commodity Markets Outlook. Energy analysts are bracing for a potential 1970s-style crisis, with $100-plus oil becoming the new normal if the Strait stays closed.

Citi attempted to reach out for comment but did not respond. The projections remain provisional and subject to revision based on geopolitical developments.