Brent crude rose 6.3% to $107.63 a barrel on the 10th and WTI gained 6.7% to $102.48 as renewed U.S.-Iran hostilities, attacks on Saudi energy infrastructure and shipping disruptions around the Strait of Hormuz and Bab el-Mandeb intensified supply concerns. South Korea’s KOSPI fell 1.76% to 6,909.91 on the 11th after opening down 3.29%, while the KOSDAQ declined 1.95% to 820.64, Samsung Electronics fell 3.53% and semiconductor equipment stocks suffered larger losses. Saudi crude exports fell to 3.2 million barrels per day from roughly 7 million before the war, and Hormuz flows dropped below 2 million from 8 million to 9 million. Higher oil prices, strong Singapore refining margins and prolonged damage to refining capacity may benefit SK Innovation, GS Caltex and S-Oil by reducing reverse-lagging risk, although rate pressures, market volatility and possible short-term corrections remain.