London, April 14, 2025 – Brent crude surged past $105 per barrel today, marking its highest level since October 2023, as escalating sovereignty disputes in the Strait of Hormuz stoked fears of supply disruptions. The benchmark, which had traded in a narrow $80–$90 range for much of the year, jumped 4.5% in early trading before settling at $105.32, up $4.78. The rally was fuelled by Iran's seizure of a Marshall Islands-flagged tanker and subsequent threats to close the strait, through which approximately 25% of the world's oil passes daily.
The immediate trigger was a series of confrontations between Iran and a coalition led by the United States and the United Kingdom. On April 13, Iranian Revolutionary Guard Corps vessels boarded and redirected the MV Crimson Tide, claiming it was carrying contraband oil to Israel. The US Navy responded by deploying the USS Dwight D. Eisenhower carrier group to the area, while the UK announced the HMS Lancaster would join a joint patrol mission. Tehran countered by warning that it would consider any military presence “a hostile act” and could “impede navigation” if its sovereignty was violated.
For markets, the Strait of Hormuz represents a critical chokepoint. Any sustained disruption would not only remove Iranian supply but also hit exports from Saudi Arabia, Iraq, Kuwait, and the UAE. Analysts at Goldman Sachs estimated that a full closure for two weeks would push oil prices above $130, triggering a global recession. Today’s move, while sharp, still reflects a risk premium that traders expect to be temporary. “The market is pricing in a brief geopolitical scare, not a long-term blockage,” said Sarah Hinton of Eurasia Group. “But if skirmishes become sustained, we could see the rationing of demand through higher prices.”
The dispute has deeper roots. Iran has long contested the US and UK’s legal basis for maritime patrols, arguing that the 1982 UN Convention on the Law of the Sea grants it jurisdiction over the strait. The UK maintains that the strait is an international waterway and that patrolling is necessary to protect free navigation. The latest incident follows a pattern of tit-for-tat seizures since 2019, when the UK detained an Iranian tanker off Gibraltar. The US has also tightened sanctions on Iranian oil exports, pushing Tehran to retaliate.
OPEC+ has so far remained silent, but sources indicate that Saudi Arabia and Russia are monitoring the situation closely. The cartel’s current production cuts, totalling 5.3 million barrels per day, have already tightened the market. Any additional supply loss from Iran would leave spare capacity primarily in Saudi Arabia and the UAE, which could be brought online, but possibly too late to prevent a price spike. The IEA has stated it stands ready to release emergency stocks if necessary.
Market implications extend beyond oil. The rally in crude has strengthened the dollar against emerging-market currencies and lifted energy stocks, with the FTSE 100 gaining 0.8% on the back of oil major Shell and BP. However, Asian and European equities dipped as investors weighed the risk of higher energy costs. Inflation fears resurfaced, with the 10-year UK gilt yield rising 6 basis points to 4.12%. “This is a stagflationary shock,” said John Hardy of Saxo Bank. “Central banks are now facing a headache: do they tighten policy to fight inflation, or ease it to cushion the growth impact? The answer is probably neither, which could lead to a period of elevated volatility.”
Looking ahead, negotiations between Iran and the IAEA are scheduled for next week, but few expect a breakthrough. The US has signalled it is open to a new nuclear deal, yet hardliners in Tehran may see the oil crisis as leverage. If diplomacy fails, the risk of a military confrontation remains. For now, traders are hedging bets, with options markets showing heavy positioning for $120 oil. Brent’s surge to $105 is a warning that the global economy remains dangerously dependent on a narrow waterway, and that the geopolitical stakes are the highest since the start of the Russia-Ukraine war.
