Brent crude prices climb above $90 per barrel as renewed U.S.-Iran hostilities in the Middle East raise concerns about disruptions to oil flows through the Strait of Hormuz. Multiple reports say U.S. and Iran exchange strikes, with additional attacks affecting maritime activity and increasing worries over shipping security. Brent futures rise to around $90.19–$90.63 during Monday trading, with one outlet citing a move of about 2% higher on the day and the contract reaching its highest level since mid-June. Several sources also highlight broader market momentum: Brent gains roughly 15.9% over the prior week, its biggest weekly advance since April, reflecting investor expectations of tighter supply conditions. Alongside Brent, West Texas Intermediate (WTI) also increases, with at least one report putting the front-month U.S. contract near the mid-$80s earlier in the week and another citing WTI around $90. Related reporting references attacks that involve or impact tankers and notes that Hormuz handles about one-fifth of global oil trade. Analysts quoted by outlets warn that if escalation continues, inventories could be pressured and prices may rise further.