South Korea imposes fuel price cap as oil tops $100 amid U.S.-Iran tensions
South Korea on March 13 began enforcing a petroleum price ceiling to curb fuel costs as international oil markets surged following rising tensions in the Middle East. Brent crude briefly crossed the $100 per barrel threshold for the first time since August 2022, with markets reacting to developments tied to the US–Iran conflict.
Under the new policy, government-set ceilings cap key fuels: regular gasoline at 1,724 won per liter, automotive diesel at 1,713 won per liter, and kerosene at 1,320 won per liter. The government said the ceilings would be reassessed every two weeks in response to changing Middle East dynamics and global oil prices.
Oil prices had spiked earlier in the week with news flows surrounding US–Iran tensions. On the ICE, May Brent futures closed at $100.46 per barrel, up about 9.2% from the previous session, marking the first close above $100 in roughly three and a half years.
Locally, price-tracking data from the Korea National Oil Corporation’s OPINET system showed the nationwide average gasoline price at 1,893.3 won per liter at 2 a.m., down 5.5 won from the day before. Diesel stood at 1,911.1 won per liter, down 7.9 won, indicating a pullback from recent peaks.
In Seoul, the market showed similar easing: average gasoline price at 1,918.9 won per liter, down 8.1 won, and diesel at 1,922.7 won per liter, down 13.5 won. Diesel remained more expensive than gasoline, a common domestic pattern.
Officials note that changes in overseas oil markets generally feed into domestic fuel prices with a lag of about two to three weeks, meaning the full effect of the price ceiling and ongoing geopolitical developments may unfold over the near term.
Why this matters for the United States: Korea is a major energy importer and pivotal in Northeast Asian supply chains. A government price cap helps stabilize consumer costs and business planning in Korea, potentially influencing regional energy markets, inflation, and trade dynamics that U.S. companies and policymakers monitor closely. The move also underscores how global oil volatility can prompt domestic interventions in allied economies and affect the broader energy-security conversation in the United States.