Brent crude futures advanced 69 cents, or 0.8%, to settle at $85.42 a barrel on Friday.
The move reflects growing market anxiety over supply disruptions in the Strait of Hormuz, as reported attacks on shipping infrastructure have intensified.
Traders are pricing in a premium for geopolitical risk as the chokepoint remains a critical vulnerability for global oil flows.
The price action underscores the sensitivity of energy markets to physical security threats in the region.
With the Strait of Hormuz handling a significant portion of global seaborne oil trade, any sustained disruption poses an immediate threat to supply chains.
The modest but firm rise in Brent suggests that while panic buying has not yet taken hold, the risk premium is steadily accumulating.