Global oil prices hit $108 per barrel amid supply disruption concerns, impacting bond yields

Global oil prices surged to $108 per barrel on September 10, 2026, driven primarily by escalating geopolitical tensions in the Middle East. Increased shipping attacks around the Strait of Hormuz and an ongoing conflict between the US and Iran have heightened concerns about global oil supply disruptions. Brent crude, the international benchmark, briefly topped $108 per barrel, reaching its highest level since May, as traders reacted to the deteriorating regional stability and renewed fears of energy-driven inflation.

Concurrently, global bond yields have seen a significant increase, with long-dated developed market government bonds reaching levels not seen in over a decade. This surge is partly attributed to the booming artificial intelligence (AI) sector, which is driving substantial corporate debt issuance to fund its rapid expansion. This increased corporate borrowing competes for capital with government debt, contributing to higher yields. Additionally, persistent fiscal challenges in developed markets and worries about inflation, partly fueled by rising energy costs, are pressuring bond markets.

Further contributing to the market's volatility is ongoing tariff uncertainty, which complicates global trade flows and adds to inflation concerns. The combination of these factors — geopolitical instability impacting energy, the capital demands of the AI boom, and trade policy unpredictability — is creating a complex economic environment with significant implications for both commodity and financial markets.