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Global Bond Yields Surge as Iran Conflict and Strait of Hormuz Closure Drive Oil Above $100

2026-05-17

The BareStory

Global government bond yields are climbing as an ongoing war in Iran and the closure of the Strait of Hormuz disrupt international energy supplies. The conflict has pushed global oil prices well above $100 per barrel, fueling inflation concerns and driving sell-offs of long-term government debt in the United States, the United Kingdom, and Japan.

Finance ministers and central bankers from the Group of Seven are scheduled to meet in Paris on Monday and Tuesday to address the economic fallout. The supply constraints drove Brent crude to close at $109.26 a barrel on Friday. The International Energy Agency recently warned that rapidly shrinking global oil inventories could trigger further price spikes ahead of peak summer demand. According to Eurogroup President Kyriakos Pierrakakis, reopening the strait is essential to mitigating the widespread economic impact.

In the United States, inflation fears have sharply increased long-term borrowing costs. On Friday, the yield on the U.S. 10-year Treasury note neared 4.6 percent, while the 30-year bond jumped to 5.121 percent. These financial shifts coincide with market adjustments under newly confirmed Federal Reserve Chair Kevin Warsh. Similar yield increases are occurring in the U.K. and Japan, driven by high energy costs and shifting investor confidence.

Daleep Singh, chief global economist at PGIM and a former U.S. deputy national security adviser, projected that overlapping supply shocks could soon push the 10-year Treasury yield to 5 percent. Singh estimated the Strait of Hormuz shortfall at up to 100 million barrels a week, noting that alternative production cannot cover the deficit. If yields reach 5 percent, Singh predicted the U.S. government may intervene with measures to artificially suppress interest rates.

Left Perspective

  • Shielding Against Regressive Shocks
  • Misplaced Global Institutional Focus
  • Threat of Artificial Market Rescues

Right Perspective

  • Pricing Rational Systemic Risk
  • Physical Supply Dictates Stability
  • Hazard of Yield Manipulation

How it may affect me

As a U.S. reader:

• In the short term, you will likely face immediate price spikes at the gas pump as global oil prices surge past $100 a barrel ahead of peak summer demand.

• Your everyday borrowing costs will increase, potentially pricing you out of housing and essential credit as long-term U.S. bond yields rise sharply.

• The sustained disruption in global energy supplies will drive broader inflation, acting as a regressive tax that increases your general cost of living.

• In the long term, if the government intervenes to artificially cap rising interest rates, you could experience crippling stagflation or an uncontrollable inflationary spiral.

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