Oil surge causes brutal Black Monday in Seoul

by Yoo Na-hyun · Kim Yeon-jae Posted : March 9, 2026, 17:29Updated : March 9, 2026, 17:29
The Korean won–US dollar exchange rate is displayed on an electronic board at the dealing room of Hana Bank headquarters in Seoul’s Jung-gu district on March 9 2026 AJP Yoo Na-hyun 20260309
The Korean won–U.S. dollar exchange rate is displayed on an electronic board at the dealing room of Hana Bank headquarters in Seoul’s Jung-gu district on March 9 2026. AJP Yoo Na-hyun. 2026.03.09

SEOUL, March 09 (AJP) - The global energy market plunged into turmoil Monday as fears of a prolonged Middle East conflict sent crude prices soaring.

Brent crude had surged 25 percent from the previous session to $116 per barrel, while U.S. benchmark West Texas Intermediate (WTI) jumped 27 percent to $115.

Dubai crude — the benchmark most relevant for Asian importers — also breached the $100 mark after the March 6 close, marking its sharpest rise in more than two and a half years since the early months of the Russia-Ukraine war in 2022.

The shockwave quickly reached Seoul, where financial markets and daily life began absorbing the impact. 

 
The Korean won–US dollar exchange rate and the KOSPI index are displayed on an electronic board at the dealing room of Hana Bank headquarters in Seoul’s Jung-gu district on March 9 2026 AJP Yoo Na-hyun 20260309
The Korean won–U.S. dollar exchange rate and the KOSPI index are displayed on an electronic board at the dealing room of Hana Bank headquarters in Seoul’s Jung-gu district on March 9 2026. AJP Yoo Na-hyun. 2026.03.09
 

The main bourse was repeatedly interrupted as the sell-off gathered pace. South Korea’s benchmark KOSPI closed at 5,251.9, down 6 percent, after plunging more than 8 percent during the session and briefly touching 5,096.2. 

The plunge triggered a Level-1 circuit breaker, halting trading for 20 minutes.

The Korean won–US dollar exchange rate is displayed on an electronic board at the dealing room of Hana Bank headquarters in Seoul’s Jung-gu district on March 9 2026 AJP Yoo Na-hyun 20260309
The Korean won–U.S. dollar exchange rate is displayed on an electronic board at the dealing room of Hana Bank headquarters in Seoul’s Jung-gu district on March 9. 2026. AJP Yoo Na-hyun. 2026.03.09
Foreign selling of over 3 trillion won ($2 billion) on the main bourse fanned the won's weakening, pushing the Korean currency value against the U.S. dollar to its lowest since the global financial crisis wake in March 2009, hovering close to 1,500 won, a level largely deemed as a government defense line. 
 
Fuel prices are displayed at a gas station in Seoul on March 9 2026 AJP Yoo Na-hyun 20260309
Fuel prices are displayed at a gas station in Seoul on March 9. 2026. AJP Yoo Na-hyun. 2026.03.09
 
Fuel prices are displayed at a gas station in Seoul on March 9 2026 AJP Yoo Na-hyun 20260309
Fuel prices are displayed at a gas station in Seoul on March 9. 2026. AJP Yoo Na-hyun. 2026.03.09
Drivers grappled with sudden spike in gasoline prices over the weekend.  As of Sunday, the average gasoline price reached 1,945.73 won ($1.35) per liter, while diesel climbed to 1,967.19 won.

Since Feb. 28, gasoline prices have risen about 11 percent and diesel roughly 18 percent.

The surge in marine fuel costs and demand for maritime logistics pushed diesel prices above gasoline — the first such reversal since February 2023, when sanctions on Russian refined oil disrupted global fuel markets.
 
The Korean won–US dollar selling rate is displayed at a currency exchange shop in Myeong-dong Jung-gu Seoul on March 9 The won has been approaching the 1500-per-dollar level amid rising global oil prices which have surpassed 100 per barrel AJP Yoo Na-hyun 20260309
The Korean won–U.S. dollar selling rate is displayed at a currency exchange shop in Myeong-dong, Jung-gu, Seoul, on March 9. The won has been approaching the 1,500-per-dollar level amid rising global oil prices, which have surpassed $100 per barrel. AJP Yoo Na-hyun. 2026.03.09
 
The Korean won–US dollar selling rate is displayed at a currency exchange shop in Myeong-dong Jung-gu Seoul on March 9 The won has been approaching the 1500-per-dollar level amid rising global oil prices which have surpassed 100 per barrel AJP Yoo Na-hyun 20260309
The Korean won–U.S. dollar selling rate is displayed at a currency exchange shop in Myeong-dong, Jung-gu, Seoul, on March 9. The won has been approaching the 1,500-per-dollar level amid rising global oil prices, which have surpassed $100 per barrel. AJP Yoo Na-hyun. 2026.03.09
 

Authorities moved quickly to stabilize markets. 

The Bank of Korea convened an emergency Middle East Situation Task Force chaired by Senior Deputy Governor Ryoo Sang-dai. 

Verbal intervention from the central bank helped trim some of the currency’s losses, pulling the won back toward the 1,495 level. 

Still, the measures struggled to anchor sentiment as market anxiety continued to dominate trading.