Oil Surges as Strait of Hormuz Enters 'Full Conflict Conditions'

Renewed tensions and attacks on tankers in the Strait of Hormuz have triggered a significant surge in global oil markets. Following President Donald Trump's announcement that the ceasefire deal between the United States and Iran was over, the critical waterway has effectively returned to "full conflict conditions," amplifying uncertainty across energy markets.

Allegations of Iran attacking at least three tankers transiting the Strait of Hormuz within the last 48 hours were met with retaliatory U.S. strikes against Iranian targets. These developments led to the disintegration of a fragile ceasefire previously established. Brent crude oil jumped by nearly 6% to over $80 a barrel, while U.S. West Texas Intermediate (WTI) crude also saw a similar rise, trading around $74.50 a barrel. International Maritime Organization (IMO) Secretary-General Arsenio Dominguez condemned the "reckless attacks" on vessels, and United Nations (UN) Secretary-General António Guterres warned of "catastrophic consequences" for the region and the global economy.

This escalation marks the breakdown of a fragile truce agreed upon last month between the U.S. and Iran, which had allowed for a partial normalization of commercial shipping through the Strait of Hormuz after months of disruption. Analysts from Rystad Energy and Windward Maritime confirmed that tanker traffic has essentially stopped, and the strait is operating under "full conflict conditions." This situation has generated significant concerns for global supply chains and energy security. UK short-dated bonds experienced their worst day since late March, with expectations rising for a Bank of England rate hike to counter renewed inflationary pressures. While the FTSE 100 index fell by approximately 1.7%, energy giants like BP and Shell saw their shares rise amidst the oil price surge.

The Strait of Hormuz is a vital choke point, through which roughly one-fifth of the world's seaborne oil and a significant volume of liquefied natural gas (LNG) flows daily. The International Energy Agency (IEA) previously characterized the closure of the strait during the 2026 Iran war as the "largest supply disruption in the history of the global oil market." Oil prices, which had previously soared above $110 a barrel before easing with the ceasefire, are now reigniting concerns about stagflation and recession risks in the global economy.

Market analysts anticipate that even without sustained physical disruption, the uncertainty surrounding vessel safety, insurance costs, potential delays, and the risk of further retaliation will keep volatility elevated in the near term. UN economists have warned that price and supply volatility could worsen in the coming months. Although the global market has shown more resilience than initially feared, expectations for a diplomatic resolution have diminished, and markets will continue to closely monitor the trajectory of tensions in the region.