Why Does the Strait of Malacca Matter More Than Almost Any Place on Earth?

The Strait of Malacca is 900 kilometres long and barely 2.7 kilometres wide at its narrowest point. In the first half of 2025, 23.2 million barrels of oil passed through it every day — more than through any other single maritime passage on earth, according to EIA data. That is 29% of all oil traded by sea, moving through a gap you could swim across in under an hour.

The strategic weight of Malacca goes beyond oil volumes. China receives approximately 80% of its oil imports through this strait — a dependency so alarming to Chinese strategic planners that it has a name: the “Malacca Dilemma.” If a hostile power or natural disaster closed the strait, China’s energy supply would be severed within weeks. India faces the same structural vulnerability on a smaller scale. In 1H2025, China alone accounted for 48% of all import volumes transiting Malacca, with Persian Gulf OPEC producers supplying roughly 60% of the crude flowing through.

Singapore — sitting directly at the eastern mouth of the strait — hosts the world’s second-busiest container port partly because of this geography. Every ship passing between the Indian and Pacific Oceans funnels past its docks. The strait also carries a rapidly growing volume of LNG: 9.2 billion cubic feet per day in 1H2025, up from 7.4 Bcf/d in 2020, as Asian economies expand their gas imports. Piracy has risen alongside: 80 incidents were reported in the Malacca and Singapore straits in the first half of 2025 — the highest rate since 2015, according to the International Maritime Bureau — though none were categorized as serious.

What Makes the Strait of Hormuz the World’s Most Critical Energy Chokepoint?

The Strait of Hormuz is not the largest chokepoint by oil volume — Malacca is. But it is the most critical by consequence, for one reason: there is no viable alternative. The strait is the only sea exit for five of the world’s top ten oil producers — Saudi Arabia, Iraq, the UAE, Kuwait, and Iran. It also carries approximately 20% of all global LNG trade, primarily from Qatar (93% of whose LNG exports transit here) and the UAE (96%). A sustained closure would not merely raise oil prices — it would strand the majority of the world’s spare production capacity, most of which sits in Saudi Arabia.

Pipeline alternatives exist but are wholly inadequate. Saudi Arabia’s East-West pipeline and the UAE’s Abu Dhabi pipeline together provide roughly 4.7 mb/d of bypass capacity — versus 20 mb/d of normal Hormuz flow. In the current 2026 crisis, Saudi Arabia has diverted crude through the East-West pipeline to its Red Sea port at Yanbu, but the combined pipeline capacity covers less than a quarter of what normally flows through the strait.

In 2024, oil flow through Hormuz averaged 20.7 mb/d — equivalent to roughly 20% of all global petroleum consumption and one-quarter of all seaborne oil trade, according to EIA. 84% of that crude was destined for Asian markets, with China, India, Japan, and South Korea collectively receiving 74% of total Hormuz crude exports. In Q1 2026, Iranian action cut flows to approximately 14.6 mb/d — a decline of nearly 6 mb/d — pushing Brent crude above 45% higher than pre-conflict levels, according to EIA’s Q1 2026 Global Energy Security report.

How Did Houthi Attacks Halve Red Sea Trade — and What Went Around Africa Instead?

In November 2023, Yemen’s Houthi movement began attacking commercial vessels in the Red Sea in solidarity with Gaza. By 2024, the consequences were quantifiable and severe. Oil flows through Bab el-Mandeb — the southern gateway to the Red Sea — fell from 9.3 million barrels per day in 2023 to 4.1 million b/d in 2024, a 56% collapse. Suez Canal and SUMED pipeline flows fell from 8.8 mb/d to 4.8 mb/d over the same period. Container traffic through the Suez Canal fell from over 26,000 vessels in 2023 to approximately 13,000 in 2024 — a 50% drop.

The cargo that stopped going through Suez went around Africa instead. Oil flows through the Cape of Good Hope rose from 6.2 mb/d in 2023 to 9.3 mb/d in 2024 — a 50% increase in a single year. The Cape route adds 10 to 15 days to journeys between Asia and Europe, requires thousands of additional nautical miles, burns more fuel, and commands higher insurance premiums. War-risk insurance premiums for Red Sea transits rose to 4–5 times their previous level. The Bab el-Mandeb disruption effectively added a permanent surcharge to Europe-Asia trade for the duration of the crisis.

LNG was hit even harder than oil. LNG flows through the Suez Canal fell from 4.1 billion cubic feet per day in 2023 to just 0.5 Bcf/d in 2024 — a 90% collapse. LNG via Bab el-Mandeb fell to near zero. European buyers had to source LNG from alternative markets or reroute existing contracts around Africa, adding to European energy costs at a time when the continent was already managing the aftermath of Russian gas cutoffs.

The Red Sea corridor is also significant for food trade. Before the crisis, according to Chatham House data, the corridor carried approximately 20% of global rice exports and 15% of global wheat exports. The disruption of fertilizer, rice, and wheat shipments worsened food inflation and food insecurity in importing nations in Africa and the Middle East.

Why Did the Panama Canal Drought Shock Global Supply Chains in 2023–2024?

The Panama Canal does not carry large volumes of oil — EIA estimates roughly 3% of global maritime petroleum flows in FY2024. But it carries something arguably more strategically complex: a concentrated stream of high-value manufactured goods, US grain exports, LNG from the US Gulf Coast to Asia, and automobiles. It handles approximately 40% of all US container traffic and is the primary route for US LNG exports to Asian buyers, according to Al Jazeera and EIA data.

In 2023 and 2024, the worst drought on record in the Panama Canal watershed caused water levels in Gatún Lake — the freshwater reservoir that feeds the canal’s lock system — to fall sharply. The Panama Canal Authority restricted vessel numbers and reduced draft limits, cutting daily transits by more than 50% at the peak of the drought. Total vessel transits fell 42% from their 2023 level. The EIA fiscal year data shows oil flows dipped from 2.2 mb/d in FY2023 to 2.0 mb/d in FY2024.

By FY2025, rainfall returned to average and Panama Canal oil flows recovered to 2.3 mb/d. But the drought exposed a structural vulnerability that climate projections suggest will recur. The canal depends entirely on rainfall in a tropical watershed. The IPCC projects increased drought frequency in Central America under most warming scenarios. A canal that periodically loses half its capacity is a different asset than one that operates reliably year-round — and the global supply chains built around it are priced accordingly.

What Is the Taiwan Strait — and Why Is It a Hidden Chokepoint?

The Taiwan Strait is 130 kilometres wide at its narrowest — far broader than Malacca or Hormuz — but it handles more than 20% of global maritime trade by value annually, according to Al Jazeera, and nearly half the global container fleet transits it. Unlike Hormuz (oil) or Malacca (oil and bulk goods), the Taiwan Strait is primarily a container and semiconductor trade chokepoint.

Almost all advanced semiconductors in the world — including every chip manufactured by Taiwan’s TSMC at cutting-edge nodes — pass through this strait on their way to the global supply chain. A military conflict or naval blockade in the Taiwan Strait would not primarily affect oil prices. It would affect the global production of smartphones, cars, aircraft, data centres, and military hardware. The PMC peer-reviewed paper on chokepoint economic risk estimates the Taiwan Strait’s annual economic exposure at $37.3 billion — the highest of any individual chokepoint.

The EIA’s seven-chokepoint analysis does not include the Taiwan Strait because EIA focuses on energy trade. But by the metric of total trade value, the Taiwan Strait rivals or exceeds Hormuz in systemic importance. The difference is that Hormuz’s disruption would cause an immediate, visible price spike in petrol stations around the world within days. Taiwan Strait disruption would manifest more slowly — in production lines that run out of chips, in months-long delays to electronics manufacturing, in a global recession driven not by energy but by the absence of silicon.

What Changed in the Danish and Turkish Straits After the Ukraine War?

Two chokepoints that rarely appear in global headlines have been significantly reshaped by the war in Ukraine: the Danish Straits and the Turkish Straits (Bosphorus and Dardanelles).

The Danish Straits — a series of channels connecting the Baltic Sea to the North Sea — carried 4.9 mb/d of oil in 1H2025, roughly 60% more than in 2021. The surge reflects Russia’s rerouting of Baltic oil exports away from European buyers and toward Asia (primarily India and Turkey), combined with the replacement of Russian pipeline gas with US LNG into Northern and Central Europe. Russia is now the largest single exporter through the Danish Straits. US LNG tankers are the largest supplier of gas to countries east of the straits — a complete reversal of the energy geography that existed before 2022.

The Turkish Straits — the Bosphorus and Dardanelles connecting the Black Sea to the Mediterranean — carried 3.7 mb/d in 1H2025. The Bosphorus is less than a nautical mile wide at its narrowest point, passing directly through the city of Istanbul — one of the world’s most complex navigation environments. Over 45,000 vessels transited in 2024. Turkey, under the 1936 Montreux Convention, controls transit rights, and has restricted warship passage during the Ukraine conflict. Kazakhstan and Russia are the dominant oil exporters through the Turkish Straits; Turkey has become the primary transit hub for Russian oil reaching global markets outside of Europe.