A synthesis of Magna Bureau’s thirteen chokepoint pages — the passages the world economy cannot do without, and who sits on them.
Last updated: October 2026
A chokepoint is a narrow strait, canal, or sea lane through which a large share of world trade or energy must pass — and which can therefore be blocked. Magna Bureau tracks thirteen of them, from the Strait of Hormuz and the Suez Canal to the Panama Canal and the Strait of Malacca, and rates each one weekly for disruption risk. This report synthesises the Bureau’s thirteen chokepoint pages into a single picture. It adds no new figures: every number below is taken from those pages, and where a page gives no figure, this report says so rather than filling the gap.
Three passages carry the world economy’s heaviest loads. The Strait of Hormuz carries roughly a fifth of global oil and about a third of seaborne liquefied natural gas. The Suez Canal carries about 12 percent of world trade. The Panama Canal carries roughly 5 percent of world trade — its own page also cites approximately 6 percent — including a large share of United States container traffic and liquefied natural gas. A fourth passage, the Taiwan Strait, carries about half the world’s container fleet and roughly 90 percent of advanced chips, making it the semiconductor lifeline. The remaining nine passages matter for different reasons: some are the only way in or out of a sea, some are the fallback when a canal closes, and some carry the exports of a single region that the world cannot replace quickly.
The thirteen passages are held, in the Bureau’s framing, by the countries that border them. Five passages sit on a single country’s ground. Eight are shared by two, three, or five bordering countries. The most consequential single-holder passage is the Taiwan Strait, where the listed bordering country, China, carries a national power score of 88.03 out of 100. The most crowded passage is the Bab el-Mandeb and Red Sea corridor, with five bordering countries led by Saudi Arabia at 72.16. The report’s central finding is that chokepoint risk is not one risk but several kinds: energy blockade, canal closure, strait politics, climate rationing, and war at the gate — and each kind behaves differently when it fails.
The Strait of Hormuz is the world’s most consequential energy chokepoint. It is the narrow waterway between Iran and the Arabian Peninsula, connecting the Persian Gulf to the Gulf of Oman and the Arabian Sea. Roughly a fifth of global oil — approximately 21 percent of global petroleum liquids, about 20.9 million barrels per day, according to the United States Energy Information Administration’s World Oil Transit Chokepoints (2025), as cited on the Bureau’s page — and about a third of seaborne liquefied natural gas pass through it. Three countries sit on the passage: the United Arab Emirates, Iran, and Oman. The highest-scored of the three on the Bureau’s national power board is the United Arab Emirates at 68.28 out of 100. The Bureau’s standing watch on Hormuz is the arithmetic of closure: every closure threat reprices crude within hours, and a full closure would strand Gulf oil and gas exports and reroute global energy flows.
The Bab el-Mandeb is Hormuz’s southern counterpart and the gate to the Red Sea. The strait itself, between Djibouti and Yemen, connects the Red Sea to the Gulf of Aden and the Indian Ocean; the Bureau tracks it twice, once as the strait and once as the wider Bab el-Mandeb and Red Sea corridor leading to the Suez Canal. The strait page lists three bordering countries — Eritrea, Yemen, and Djibouti — with Eritrea the highest-scored at 37.0 out of 100. The wider corridor page lists five — Saudi Arabia, Egypt, Eritrea, Yemen, and Djibouti — with Saudi Arabia the highest-scored at 72.16. The distinction matters: the strait is a narrow gate, but the corridor is the whole southern approach to Suez, and attacks on shipping there reroute Asia–Europe trade around the Cape of Good Hope and reprice everything. The Bureau’s page for the strait gives no single oil-volume figure, and this report does not invent one: the strait’s importance is positional — every Asia–Europe sailing not using the Cape passes here.
The Turkish Straits — the Bosphorus and the Dardanelles — connect the Black Sea to the Mediterranean through Istanbul and the Sea of Marmara. They are governed by the Montreux Convention of 1936, which controls naval access to the Black Sea, and they carry a large share of Russian and Ukrainian grain and energy exports. Three countries are listed as sitting on the passage: Russia, Turkey, and Ukraine, with Russia the highest-scored at 84.29 out of 100. Here the chokepoint is a legal instrument as much as a waterway: whoever administers the Montreux rules administers the only warm-water exit for Black Sea grain, oil, and navies.
The Danish Straits — the Øresund, the Great Belt, and the Little Belt — connect the Baltic Sea to the North Sea through Danish waters. They are the only natural outlet for Baltic shipping, carrying Russian oil, grain, and container traffic between Baltic ports and the wider world. Two countries border them, Denmark and Sweden, with Denmark the highest-scored at 64.67 out of 100. Like the Turkish Straits, the Danish Straits are a single-exit problem: there is no alternative route for the traffic that uses them, only longer and costlier ones.
The Suez Canal is an artificial waterway in Egypt connecting the Mediterranean Sea to the Red Sea, cutting the voyage between Europe and Asia by roughly ten days compared with rounding Africa. About 12 percent of world trade, on the United Nations Conference on Trade and Development figures cited by the Bureau, plus a large share of container traffic, passes through it. One country sits on it: Egypt, scored 64.86 out of 100. One stuck ship in 2021 taught the lesson the Bureau’s page repeats: closure reroutes global shipping, and the watch never closed. Suez is the purest case of a single-holder chokepoint — one country, one ditch, an eighth of world trade.
The Panama Canal is an artificial waterway across the Isthmus of Panama connecting the Atlantic and Pacific Oceans. It carries roughly 5 percent of world trade — the Bureau’s page also cites approximately 6 percent, from Panama Canal Authority figures — including a large share of United States container traffic and liquefied natural gas. One country sits on it: Panama, scored 57.15 out of 100. Panama’s distinctive risk is not politics but climate: transit capacity depends on freshwater from Gatun Lake, and drought now rations transits. The Bureau’s phrasing is that climate acts as a toll collector on the Americas’ shortcut. A closure would force shipping around South America; drought already imposes a slower version of the same cost.
The Strait of Malacca is the narrow waterway between the Malay Peninsula and Sumatra, connecting the Indian Ocean to the South China Sea and the Pacific. It is one of the world’s busiest shipping lanes — the Bureau’s page calls it the busiest shipping lane on Earth — carrying a large share of Asia’s oil imports and container traffic between East Asia and Europe. Three countries border it: Indonesia, Malaysia, and Singapore, with Indonesia the highest-scored at 73.44 out of 100. Malacca is also the home of the “Malacca dilemma”: the reason, in the Bureau’s account, for pipelines, ports, and the maritime half of the Belt and Road — the search for routes that do not all pass through one strait.
The Lombok and Sunda Straits are Indonesian waterways connecting the Indian Ocean to the Java Sea and the South China Sea. They are the deep-water alternatives to Malacca, carrying large vessels — including supertankers too deep for Malacca — between the Indian and Pacific Oceans. One country borders them: Indonesia, scored 73.44 out of 100. Their role is redundancy: Malacca’s relief valves, and the reason a Malacca closure would be expensive rather than total.
The Taiwan Strait is the waterway between Taiwan and mainland China, connecting the East China Sea to the South China Sea. It is one of the world’s busiest shipping lanes and a central geopolitical flashpoint, carrying a large share of global semiconductor supply-chain traffic. The Bureau’s page lists one bordering country, China, scored 88.03 out of 100, and states the stakes plainly: about half the world’s container fleet and roughly 90 percent of advanced chips pass through what it calls the world’s most dangerous waterway. It is not primarily an oil chokepoint. Its cargo is the world’s computing power.
The Cape of Good Hope is the sea route around southern Africa and the fallback when the Suez Canal is blocked. Ships rerouted here add roughly ten days and thousands of miles to Asia–Europe voyages, raising freight costs and delaying supply chains across the world. One country is listed as sitting on it: South Africa, scored 61.47 out of 100. The Cape is not an oil transit chokepoint in itself; it is where oil and container traffic go when the normal route fails, and its traffic rises sharply during disruptions. Every other chokepoint in this report has a Cape-shaped shadow: the cost of going around.
The Strait of Gibraltar is the narrow passage between Spain and Morocco connecting the Atlantic Ocean to the Mediterranean Sea. It is one of the world’s busiest shipping lanes and a key migration and military corridor, controlled by Spain, Morocco, and the British territory of Gibraltar. Three countries are listed as sitting on it: the United Kingdom, Spain, and Morocco, with the United Kingdom the highest-scored at 82.72 out of 100. Gibraltar is the only passage in the set where migration, gas, and naval posture share one narrow band — a chokepoint that is simultaneously a border, a fuel route, and a base.
The Mozambique Channel is the waterway between Mozambique and Madagascar in the western Indian Ocean. It carries shipping between the Indian Ocean and southern Africa, and its waters hold significant natural gas reserves, with major liquefied natural gas projects on Mozambique’s coast. Two countries border it: Madagascar and Mozambique, with Madagascar the highest-scored at 45.96 out of 100. It is an energy corridor of the future tense — a passage whose importance grows with the gas fields beside it.
Read together, the thirteen pages describe a system with a single point of failure at its centre and redundancy at its edges. The centre is energy: Hormuz for oil and gas, the Red Sea gate for the Suez route, the Turkish and Danish Straits as the only exits of two enclosed seas. The edges are the alternatives: the Cape when Suez closes, Lombok and Sunda when Malacca closes, the long way around South America when Panama closes. The Board’s own framing — that a chokepoint is judged by how many navies can hold it, and by the power of those who border it — explains why the same narrow water can be a shared highway in one decade and a weapon in the next: the geography does not change, but the holders do, and the scores attached to them are the Bureau’s measure of how much weight each holder brings.
| Chokepoint | What passes | Bordering countries (highest-scored) |
|---|---|---|
| Strait of Hormuz | Roughly a fifth of global oil; about a third of seaborne LNG | United Arab Emirates (68.28), Iran, Oman |
| Bab el-Mandeb / Red Sea | Southern gate of the Suez route | Saudi Arabia (72.16), Egypt, Eritrea, Yemen, Djibouti |
| Bab el-Mandeb | Southern gateway to the Suez route | Eritrea (37.0), Yemen, Djibouti |
| Suez Canal | About 12% of world trade | Egypt (64.86) |
| Panama Canal | Roughly 5–6% of world trade | Panama (57.15) |
| Taiwan Strait | About half the world’s container fleet; ~90% of advanced chips | China (88.03) |
| Strait of Malacca | Busiest shipping lane on Earth | Indonesia (73.44), Malaysia, Singapore |
| Lombok & Sunda Straits | Deep-water alternative to Malacca | Indonesia (73.44) |
| Turkish Straits | Black Sea grain, oil, navies (Montreux, 1936) | Russia (84.29), Turkey, Ukraine |
| Danish Straits | Only natural outlet for Baltic shipping | Denmark (64.67), Sweden |
| Strait of Gibraltar | Atlantic–Mediterranean gate | United Kingdom (82.72), Spain, Morocco |
| Cape of Good Hope | Fallback when Suez or the Red Sea closes | South Africa (61.47) |
| Mozambique Channel | LNG corridor off East Africa | Madagascar (45.96), Mozambique |
This report is a synthesis of Magna Bureau’s thirteen chokepoint pages and its chokepoints hub, as published in October 2026. It introduces no new measurements, no new estimates, and no new sources. Scores quoted are the national power scores shown on the chokepoint pages, which draw on the Bureau’s rankings board. The chokepoint pages carry an observation date of 11 October 2026. The Bureau rates each chokepoint on a plain three-step scale — Critical means the flow is disrupted or under direct threat, Tense means it works but pressure is building, Calm means normal operations — with ratings reviewed every week and updated immediately when a crisis hits. This report does not restate individual ratings, because ratings move weekly; the live rating for each passage is on its own page. Where a chokepoint page states that it gives no single figure for a flow, this report says so instead of supplying one. Readers who want the underlying pages will find them in the Sources section below.
