Even after the shale revolution and the rise of renewables, the Middle East remains the beating heart of the global energy system. Around a third of the world's crude oil and roughly a fifth of its liquefied natural gas passes through a handful of narrow waterways clustered around the Arabian Peninsula. When missiles fly in Gaza, Lebanon, Yemen or the Strait of Hormuz, traders in Singapore, refiners in Rotterdam and drivers in Ohio all pay attention — because the price of everything that moves, heats or is manufactured is priced off the same barrel. Tim Marshall's rule applies here more than anywhere: geography does not care about ideology. The tankers still have to go through the same straits.
At its narrowest, the Strait of Hormuz is only 33 km wide, with shipping lanes squeezed into a channel a few kilometres across. Through it passes roughly 20 million barrels of oil a day — about a fifth of global consumption — plus most of the LNG leaving Qatar and the UAE. Iran sits on the northern shore. It cannot 'close' the strait in a legal sense, but it does not need to: a handful of anti-ship missiles, sea mines or drone swarms are enough to send insurance premiums vertical and force tankers to wait. Every serious oil-price spike of the last forty years has, at some point, been priced against a scenario in which Iran decides Hormuz is worth using as a weapon.
The oil and containers that survive Hormuz still have to reach Europe. That means the Red Sea: through Bab el-Mandeb at its southern mouth (26 km wide, Yemen on one side, Djibouti on the other), up past Saudi Arabia and Egypt, and out through the Suez Canal. Yemen's Houthi movement, armed and coached by Iran, spent 2023–2024 firing missiles and drones at commercial shipping in exactly this corridor. The effect was immediate: major carriers rerouted around the Cape of Good Hope, adding 10–14 days to Asia–Europe voyages, Suez Canal revenues collapsed by more than half, and European importers absorbed higher freight and insurance costs. A war that most Europeans watched on their phones quietly re-priced the shelves in their supermarkets.
For decades Israel and Iran fought through proxies: Hezbollah in Lebanon, Hamas in Gaza, Shia militias in Iraq and Syria, the Houthis in Yemen. After October 2023 that scaffolding began to collapse into direct exchanges of fire — Israeli strikes on Iranian generals in Damascus, Iranian ballistic-missile barrages against Israel, Israeli strikes on Iranian air defences and, in 2025, on nuclear-related sites. Every escalation forces the same question into oil-trading screens: will Iran hit back at Gulf energy infrastructure? The 2019 drone strike on Saudi Arabia's Abqaiq facility, which briefly took out 5% of world oil supply in a single night, is the template everyone remembers. The war is no longer only about Israel and Iran; it is about whether the Gulf's export machine keeps running.
Saudi Arabia, the UAE, Qatar, Kuwait and Bahrain are among the richest energy exporters on Earth, but their infrastructure is extraordinarily concentrated. A handful of processing facilities (Abqaiq, Ras Tanura, Ruwais), a handful of export terminals, a handful of LNG trains at Ras Laffan. Take any one of them offline for a month and the world feels it. That concentration is why the Gulf states have spent the last decade quietly buying Patriot and THAAD batteries, building pipelines that bypass Hormuz overland to the Red Sea (Saudi Arabia's East–West line, the UAE's Fujairah pipeline), and — as covered in the AI and energy modules — hedging into solar, hydrogen and AI compute. They are trying to make themselves less of a single point of failure before somebody decides to test how fragile they really are.
The counter-intuitive fact about a Middle East energy shock is who bears it. The United States is now a net oil and gas exporter; higher prices are a mixed blessing for Washington, hurting motorists but helping Texas and the LNG lobby. Europe rerouted away from Russian gas after 2022 and now imports large volumes of US and Qatari LNG — a Gulf war would hit it hard, but not fatally. The countries with the most to lose are in Asia. China, India, Japan and South Korea together import the bulk of the oil leaving Hormuz. Roughly half of China's crude imports pass through the strait, and its long-term energy security is one reason Beijing brokered the 2023 Saudi–Iran rapprochement — the last thing China needs is its two biggest Gulf suppliers shooting at each other.
The link from a Middle East war to your electricity bill is not mysterious. Oil is priced globally: a barrel of Brent in the North Sea and a barrel of Saudi light in the Gulf trade off the same news. When traders price in a rising probability that some percentage of world supply will be knocked out — 3%, 5%, 10% — futures spike within minutes. Higher oil feeds directly into diesel, jet fuel and petrochemicals, and indirectly into gas prices (because gas competes with oil in power and heating). That flows into freight costs, food prices, fertiliser prices and, with a lag of six to twelve months, into headline inflation and interest-rate decisions. The 1973 oil embargo tipped the West into a decade of stagflation. The 2022 gas crisis did the same to Europe in miniature. A serious Hormuz incident in 2026 could do it again — and central banks know it.
There is one piece of good news. The world of 2026 is structurally less vulnerable to a Middle East energy shock than the world of 1973 or even 2008. US shale can ramp production up or down within months, not decades. Strategic petroleum reserves in the US, China and the IEA countries can cover weeks of lost supply. Every solar panel and EV on the road is a barrel of oil that does not need to be imported. Nuclear, where it exists, is immune to oil politics entirely. None of this makes the Gulf irrelevant — a real war would still push prices to painful levels — but it does mean the global economy has more shock absorbers than it used to. The countries that built those absorbers (the US, China, France, the Nordics) will handle the next crisis; the countries that did not (much of Europe, Japan, most of Africa and South Asia) will feel it in full.
The Middle East is not just where oil comes from. It is where oil, gas and now LNG have to physically travel through a small number of narrow places to reach the customers who need them. As long as that geography holds, a war in Gaza, Lebanon, Yemen or the Iranian coast is never only a regional war. It is a global energy event waiting to be triggered. The countries that understand this — that treat energy diversification, strategic reserves, and control of alternative routes as first-order national-security work — will keep their lights on and their inflation down. The countries that treat it as somebody else's problem will keep being surprised by their electricity bills.