The Strait of Hormuz: How One Waterway Became the World’s Most Dangerous Economic Chokepoint

Expert Comment — Middle East Programme

3 April 2026

In March 2026, the Strait of Hormuz — a narrow 33-kilometre waterway connecting the Persian Gulf to the open ocean — experienced the most severe disruption in its history. Traffic through the strait plummeted by more than 95 per cent following Iranian threats and attacks on commercial shipping. The global economy is still reeling from the shock, and the consequences are likely to reshape energy markets, shipping routes and geopolitical alignments for years to come.

The Strait of Hormuz is not just any shipping lane. It is the single most important energy chokepoint on the planet. Roughly one-fifth of the world’s total oil consumption passes through these waters every day. In 2025, before the current crisis, an average of 17 million barrels of crude oil and refined petroleum products transited the strait daily, along with massive quantities of liquefied natural gas from Qatar. The countries that depend on this passage include not only the Gulf producers — Saudi Arabia, Iraq, Kuwait, Qatar, the UAE and Iran itself — but also the major consuming nations of Asia. Japan, South Korea, India and China all rely on the strait for a substantial portion of their energy imports. For Japan, nearly 90 per cent of oil imports pass through Hormuz. For China, the figure is approximately 40 per cent, as noted by the US Energy Information Administration.

The crisis escalated rapidly in early 2026 against a backdrop of heightened US-Iran tensions that had been building since the collapse of nuclear talks in late 2025. In February, a series of incidents involving Iranian Revolutionary Guard Corps patrol boats and commercial shipping led to sharp increases in maritime insurance premiums for vessels transiting the strait. By early March, following an Iranian missile strike on a US airbase in Kuwait — described by Tehran as retaliation for a US strike on Iranian positions in Syria — the situation deteriorated dramatically. On 9 March, the IRGC announced the seizure of a container ship in the strait, accusing it of violating Iranian territorial waters. Within 48 hours, multiple shipping lines had suspended operations, rerouting vessels around the southern tip of Africa at enormous additional cost.

By mid-March, the World Bank reported that global oil prices had surged from $72 per barrel to $118 per barrel — the largest single-month increase in history. The bank’s Commodity Markets Outlook for April 2026 projected that global energy prices would rise by 24 per cent for the year as a whole, the highest since 2022. The impact on food prices has been equally severe, as energy costs feed directly into fertiliser, transportation and processing costs for agricultural commodities. The World Bank has warned that developing countries will be the primary victims, with inflation in emerging markets potentially rising to between 5.1 and 5.8 per cent.

The closure of the Strait of Hormuz represents the single biggest disruption to global energy markets since the 1973 oil embargo. The economic consequences are still unfolding, and the secondary effects on food prices, shipping costs and supply chains will be felt for years.

Container shipping rates from Asia to Europe have more than tripled compared to early 2025. Ports in the region — Jeddah, Salalah and Khor Fakkan — have emerged as critical bypass hubs, but their capacity is severely limited. The cost of rerouting a single large container ship from the Persian Gulf to East Asia has increased by an estimated $1.5 million in fuel and time costs alone. Global supply chains, already fragile after years of disruption from the pandemic, war in Ukraine and Red Sea tensions, are being tested to their limits. The insurance industry has responded by sharply increasing premiums for war risk coverage in the Gulf region, adding further costs to any shipping that continues to transit the area.

Gulf producers have been forced to seek alternative export routes. Saudi Arabia has activated its East-West pipeline, which bypasses the strait entirely, but its capacity is far below what would be needed to replace strait transit. Iran, paradoxically, has been one of the least affected countries, having developed alternative export channels under years of sanctions. In late April 2026, reports emerged that the US and Iran had reached a preliminary 60-day ceasefire and nuclear talks framework. The situation remains fluid, with the global economy watching closely. The crisis has already accelerated investment in renewable energy as countries seek to reduce their dependence on fossil fuels that must travel through vulnerable maritime chokepoints.

---

The Strait of Hormuz crisis of 2026 may prove to be a turning point for global energy security. The vulnerability of the strait has been known for decades, but the current crisis has made its strategic importance undeniable. The strait will remain vital for decades to come, but the economic and geopolitical cost of that dependence has never been clearer. The world is now confronting a question it has long avoided: how much longer can the global economy afford to rely on a single, vulnerable waterway for one-fifth of its oil supply?

---

References

• World Bank, “Commodity Markets Outlook”, April 2026.
• US Energy Information Administration, “World Oil Transit Chokepoints”.
• CSIS Energy Security Program, “Strait of Hormuz: Risks and Responses”.
• International Energy Agency, “Oil Market Report”, March 2026.
• Reuters, “Timeline: Strait of Hormuz Crisis”, March 2026.
• Lloyd’s List, “Shipping Insurance in the Gulf Region”, Q1 2026.