What drove oil above $100 a barrel?

How the Middle East conflict pushed crude to triple digits

A sharp spike in crude prices was driven by the widening military campaign in and around Iran. Attacks on oil infrastructure, closures and threats to shipping routes in the Persian Gulf, and coordinated strikes on fuel depots prompted traders to re‑price the global supply outlook, sending Brent and U.S. futures past the $100‑a‑barrel threshold.

Key factors behind the rise

• Damage to Iranian oil depots and reports of strikes on regional refinery and desalination infrastructure reduced visible inventories and raised fears of longer outages.
• Interruptions or perceived threats in the Strait of Hormuz, a critical chokepoint for global seaborne oil, sharply increased the premium investors demand for risk exposure in the region.
• Major Middle Eastern producers trimmed output in response to the uncertainty, further tightening available supply.

Immediate effects and spillovers

• Financial markets: Equity futures and stock indexes tumbled as investors priced in higher inflation and slower growth from the shock to energy costs. Emerging‑market and regional bourses were especially hard hit.
• Consumers: Retail gasoline prices rose quickly. In the short term, motorists and businesses in import‑dependent countries face higher bills at the pump and for shipping and logistics.
• Policy and geopolitics: Governments discussed strategic options — from releasing emergency reserves to diplomatic efforts to de‑escalate — while central banks and markets reevaluated expectations for interest‑rate decisions.

Broader risks

A protracted conflict would extend the disruption: sustained high oil prices can feed into higher inflation, slower economic growth, and tighter financial conditions worldwide. Policymakers face trade‑offs between emergency measures to stabilize supplies and the diplomatic and security risks of deeper involvement in the crisis.