How the Iran‑Israel war is reshaping the world’s energy supply

When the war between Iran and Israel erupted, most of us thought the headlines would stay on the battlefield. Yet the real story has been playing out in tanker lanes, refinery pipelines and the very electricity that powers our homes.

Fossil fuels still dominate the global energy mix – about 81 % of what we consume every day. Oil leads the pack at roughly 31 % of total energy use, followed closely by coal at 26 % and natural gas at 24 %. The rest comes from nuclear, renewables and traditional biomass, which together scrape together the remaining two‑thirds of a percent.

That concentration matters because production isn’t spread evenly across the planet. The Middle East remains the world’s biggest oil‑producing region, while North America commands most of the natural‑gas output. Russia and Central Asia also punch above their weight in both sectors.

Geography compounds the problem. Three narrow waterways – the Strait of Hormuz, the Bab al‑Mandeb and the Suez Canal – act as the highways that move the bulk of that oil and gas to markets far beyond the Gulf. Before the war, roughly 27 % of global seaborne oil and nearly 20 % of liquefied natural gas (LNG) slipped through Hormuz alone.

Since hostilities spilled into the Red Sea and the Yemeni civil war intensified, traffic through Hormuz and the Suez has shrunk. Ships are being forced to sail around the Cape of Good Hope, a detour that adds weeks and costs millions of dollars in fuel. As Richard Matthews of Gibson Shipbrokers put it, “we’re seeing a major constriction of a chokepoint that simply has no viable alternative.”

The fallout is already being felt on the other side of the world. Countries that lean heavily on Gulf oil – Eritrea and Madagascar, both pulling in about 90 % of their supplies from the region, followed by Pakistan, Japan and Kenya – are seeing prices climb and shipments delayed. Those same nations are scrambling for new suppliers, a process that inevitably pushes costs up the supply chain.

Natural gas is proving even trickier to replace. The bulk of LNG from Qatar and the United Arab Emirates still sails through Hormuz, so any hiccup there reverberates hardest in Asia. South Korea, India, Pakistan and Taiwan now face tighter markets and higher bills for electricity and heating.

In theory, strategic oil reserves should act as a safety net. In practice, they’re fast running dry. The United States’ Strategic Petroleum Reserve is at its lowest point since the early 1980s, and Western countries collectively hold less than 6 billion barrels that are truly “available” for a quick release. The International Energy Agency managed a record release of 400 million barrels in March and is preparing another 100 million‑barrel drop to try to tame soaring diesel prices.

China still boasts the largest emergency stockpile – an estimated 1.4 billion barrels – but even that cushion is under pressure as global demand stays stubbornly high. Meanwhile, a recent storm in the Gulf of Mexico and fresh attacks on Saudi facilities threaten to tighten the market once more, keeping oil prices perched above the $100‑a‑barrel mark.

All of this underscores a simple, unsettling truth: when a single region’s pipelines or shipping lanes are disrupted, the ripple reaches every continent. Energy security, once a distant policy buzzword, has become an immediate concern for households, factories and governments alike.