Brent crude oil surged past $100 a barrel on Thursday, marking its highest price since May, driven by escalating military tensions in the Middle East. The benchmark jumped more than 6% in a single session, signaling renewed anxiety about regional stability and potential supply disruptions.

The spike reflects traders' concerns over how Middle Eastern conflict could disrupt global oil flows. Even modest production cuts or shipping delays in the region send ripples through energy markets, where supply remains relatively tight. Geopolitical risk premiums resurface quickly when tensions flare, pushing buyers to lock in barrels at elevated prices.

This price level sits well above the $70-$80 range oil has traded in recently, suggesting the market is pricing in real downside scenarios for output. Major producers like Saudi Arabia and Iraq operate in vulnerable territories, and any escalation that threatens infrastructure or shipping lanes through the Strait of Hormuz could tighten supplies fast.

Higher oil prices translate directly to pain at the pump and upstream pressure on inflation. Airlines, shipping companies, and energy-intensive manufacturers face margin compression when crude runs hot. Consumer goods prices often follow within weeks, complicating central banks' efforts to control inflation without raising rates further.

The move breaks a period of relative stability in oil markets. Since May, prices had settled into a more predictable band as traders balanced demand concerns against OPEC's production cuts. This week's jump signals that geopolitical hazards still dominate fundamentals in energy markets, and that any regional flare-up commands immediate, forceful repricing from investors.