Countries most dependent on Hormuz oil

The popular framing of Hormuz dependency — "China is the biggest customer" — is both true and misleading. The country with the most absolute exposure is not the country with the most structural exposure. Volume buys you headlines; dependency share is what determines the depth of a crisis.

The dependency ranking, by import share.

The single cleanest measure of Hormuz exposure is the share of an economy's total crude imports that transit the strait. By that measure, the order is unambiguous:

• Japan — about 88% of crude imports.
• South Korea — about 72% of crude imports.
• India — about 62% of crude imports.
• China — about 46% of crude imports.
• Southeast Asia — about 38% of crude imports.
• Australia — about 24% of crude imports.
• European Union — about 14% of crude imports.
• United States — about 7% of crude imports.

Why Japan tops the list.

Japan is structurally pinned. It is an island nation with no overland pipeline alternatives, no domestic crude production of any meaningful scale, and a refining base concentrated on the Pacific coast. The country has spent five decades hedging the same vulnerability — building the world's largest national strategic reserve in days-of-supply terms (about 240 days of net imports), restarting nuclear capacity after Fukushima, and diversifying LNG supply across three continents. None of those hedges remove the underlying exposure: 88% of crude still arrives through the same chokepoint.

South Korea's exposure runs both ways.

Korea is not just a buyer of Gulf crude but the world's largest exporter of refined products from that crude. Ulsan and Yeosu function as regional clearing houses for diesel, jet, and naphtha. A Hormuz disruption hits both the import side (72% of crude) and the export franchise downstream. US shale crude is now a material minority share, and long-term LNG contracts span three continents — but the structure of refining-led growth means a closure tightens both ends of the value chain at once.

India's exposure has changed shape, not size.

Russian Urals — bought at discount through the Cape and Suez — now displace Gulf barrels in India's import mix, but the absolute volumes still flowing through Hormuz remain large. The LNG side is more concentrated than crude. The strategic reserve is the smallest of any major importer at roughly 75 days, with expansion under way at Padur and Chandikhol. The country's downstream exposure is the more interesting story: Jamnagar and Vadinar refine that crude into the diesel and jet that, since 2022, increasingly land in Europe.

China is the largest absolute buyer with the lowest dependency.

At roughly 46% of imports, China's Hormuz share is the lowest of any major Asian importer because of the ESPO and Kazakh-China pipelines. Strategic reserves are the largest in absolute volume terms after the United States — western estimates cluster around 850 million barrels — but small in days-of-supply terms against demand that keeps stretching the denominator. The structural risk is concentrated in the Iranian portion of the import mix: sanctioned cargoes that move through ship-to-ship transfers are uniquely sensitive to maritime enforcement during a crisis.

The European Union is the LNG story, not the oil story.

EU crude exposure to Hormuz is structurally low — Norway, the United States, and West Africa carry most of the import mix. The larger exposure is on LNG: roughly 38% of EU gas imports originate in Qatar. A Hormuz closure therefore lands on Europe primarily as a gas-price shock and only secondarily as an oil-price shock. The post-2022 Russian gas cut-off taught Europe how to manage exactly this kind of disruption — storage management, US LNG redirection, demand response — and the same toolkit applies again.

The United States is the outlier.

Roughly 7% of US crude imports come from Hormuz, mostly Saudi and Iraqi heavy grades for Gulf Coast refineries configured for them. The principal US exposure is not direct: it is the global Brent price shock, plus the foreign-policy weight of allied Asian economies suddenly facing 88% (Japan) or 72% (Korea) Hormuz exposure. The Fifth Fleet, headquartered in Bahrain, is the standing tool of first resort.

The producers depend on the strait too.

The often-overlooked point in dependency rankings is that the producers also depend on the strait being open. Iran ships almost all of its sanctioned crude through Hormuz. Qatar has no alternative for any of its LNG. Iraq, Kuwait, and Bahrain are materially exposed to a closure they could not unilaterally end. Saudi Arabia and the UAE have partial bypass but lose most of their export capacity in a closure they did not start. That mutuality is what makes the closure threat credible as a coercive lever and unsustainable as an actual posture.

For full per-country profiles, see /regions.