Brent crude breached $90 a barrel after Iran pledged to halt all oil and gas transit through the Strait of Hormuz, coinciding with a ninth consecutive night of US strikes on Iranian targets.
Key facts
- Brent crude prices breached $90 a barrel.
- Iran vowed that not 'a single drop' of oil or gas would transit the Strait of Hormuz.
- American forces began a ninth consecutive night of strikes against Iranian targets.
- The developments were reported by CNBC on July 20, 2026.
Brent crude prices climbed above $90 a barrel, according to CNBC, as tensions between the United States and Iran escalated sharply. The move higher followed an Iranian pledge that not ‘a single drop’ of oil or gas would be permitted to transit the Strait of Hormuz.
The price surge came against the backdrop of continued military action in the region. CNBC reported that American forces had started a ninth consecutive night of strikes against Iranian targets.
The Strait of Hormuz is a critical chokepoint for global energy shipments, and any threat to its use has an immediate effect on oil markets. Iran’s vow to halt transit through the waterway raised the prospect of significant disruption to supply.
As reported by CNBC, the combination of Iran’s threat and the ongoing US strikes contributed to the upward pressure on crude prices, with Brent breaching and hovering near the $90 mark in the reporting window.
The situation remained fluid, with the sustained campaign of nightly strikes signalling continued instability in the region. The full scope and duration of the military action were not detailed in the available reporting.
Why it matters
The Strait of Hormuz is one of the world's most important routes for oil and gas shipments, so any threat to close it can push energy prices higher and ripple through the global economy. Rising crude prices can feed into fuel costs and inflation, affecting consumers and businesses well beyond the region.
Frequently asked questions
How high did oil prices go?
According to CNBC, Brent crude breached $90 a barrel and was hovering near that level in the reporting window.
What did Iran say about the Strait of Hormuz?
Iran vowed that not 'a single drop' of oil or gas would transit the Strait of Hormuz, as reported by CNBC.
What military action is taking place?
CNBC reported that American forces had started a ninth consecutive night of strikes against Iranian targets.