South Korea
East Asian export economy heavily dependent on Gulf oil imports via the Strait of Hormuz.
Last refreshed: 3 April 2026
How vulnerable is South Korea to a Hormuz oil disruption?
Latest on South Korea
- How dependent is South Korea on Gulf oil?
- South Korea imports roughly 70% of its crude oil from the Middle East, with most transiting the Strait of Hormuz, making it acutely vulnerable to any Hormuz disruption.Source: lowdown
- How is South Korea affected by the Iran-Israel war?
- The war threatens Hormuz transit, tightening the global oil market. Brent hit .80 in early April 2026, squeezing Korean industry and consumer energy costs.Source: lowdown
- Will South Korea cut a bilateral deal with Iran?
- Seoul is watching the Philippines, which became the first US ally to secure a bilateral Hormuz passage deal. South Korea faces competing pressures from its US alliance and energy needs.Source: lowdown
- How dependent is South Korea on Gulf oil?
- Roughly 70% of crude imports come from the Middle East, making it highly exposed to Hormuz disruption.Source: IEA
Background
South Korea is a high-income, export-oriented economy and the world's 12th largest by GDP. Its industrial base — anchored by semiconductors, petrochemicals, shipbuilding, and steel — is extraordinarily energy-intensive. South Korea imports roughly 70% of its crude oil from the Middle East, with the vast majority transiting the Strait of Hormuz. Any sustained closure or choking of Hormuz carries direct, severe consequences for South Korean refining capacity, industrial output, and consumer energy costs.
The 2026 Iran-Israel war placed Hormuz under implicit threat for the first time since the tanker wars of the 1980s. South Korea, alongside Taiwan and Japan, moved quickly to assess reserve cover and diversify spot purchases, but the global spot market tightened sharply as all major Asian importers competed simultaneously. The Philippines became the first US ally to cut a bilateral Hormuz passage deal with Tehran, signalling a possible template that Seoul would watch closely, particularly as Brent Crude hit .80 in early April 2026.
South Korea faces a structural dilemma: as a US treaty ally and major buyer of US weapons and LNG, it cannot openly defy Washington's collective posture on Iran. Yet its industrial economy cannot absorb prolonged Gulf oil disruption without significant political and economic damage. The tension between alliance obligations and energy security will define Seoul's diplomacy for the duration of the conflict.
