G7 Finance Ministers to Meet Amid Warning of Economic Consequences of Prolonged Strait of Hormuz Closure

Why It Matters

The Hormuz bottleneck is pushing energy costs higher, tightening inflation and forcing borrowing costs up across the G7, prompting coordinated fiscal and monetary action to stabilize markets.

Key Takeaways

• G7 ministers convene in Paris to address Hormuz‑related market volatility
• 30‑year US Treasury yield hit 5.12%, a one‑year high
• Brent crude sits at $109 per barrel, up 74% YTD
• Japan’s bond yields spike as energy‑import costs rise sharply
• IEA warns shrinking oil inventories could trigger further price spikes

Pulse Analysis

The Strait of Hormuz, a chokepoint through which roughly a fifth of global oil passes, has become a flashpoint for market instability. A prolonged closure, driven by the ongoing Iran conflict, has squeezed supply, sending Brent crude to $109 a barrel and lifting prices 74% year‑to‑date. Energy‑dependent economies, especially Japan and the United Kingdom, feel the pressure acutely, prompting the G7 to prioritize diplomatic and economic strategies aimed at reopening the waterway and mitigating broader macroeconomic fallout.

Financial markets have reacted swiftly to the supply shock. U.S. 30‑year Treasury yields surged to 5.12%, their highest level since May 2025, while British gilts reached multi‑decade peaks. Japan’s long‑term yields have also climbed sharply, reflecting heightened inflation expectations in a country heavily reliant on imported energy. The spike in borrowing costs underscores investors’ fears that persistent supply constraints could embed higher inflation into the economy, forcing central banks to consider tighter monetary stances.

Looking ahead, the International Energy Agency warns that dwindling oil inventories could trigger further price spikes as summer demand peaks. Policymakers at the Paris G7 summit are likely to discuss coordinated fiscal measures, strategic petroleum reserves releases, and diplomatic outreach to de‑escalate the Hormuz standoff. Their actions will be pivotal in shaping the trajectory of global inflation, energy security, and financial stability in the months to come.