On September 11, 2026, at 7:30 PM, global oil prices saw a significant decrease. The price of West Texas Intermediate (WTI) crude oil fell to $99.26 per barrel, down by $3.22, which is a decline of 3.14%. Similarly, Brent crude oil dropped to $104.38 per barrel, decreasing by $3.25 or 3.02%.

This decline in oil prices comes amid escalating tensions between the United States and Iran, as well as threats to oil supply routes in the Strait of Hormuz and the Red Sea. These geopolitical factors have raised concerns about potential disruptions in oil supply, contributing to the volatility in the market.

According to the Ministry of Industry and Trade, the fluctuations in global oil prices are influenced by several factors, including the ongoing conflict between the U.S. and Iran, attacks by Houthi forces on oil facilities in Saudi Arabia, and developments in peace negotiations between Russia and Ukraine. These elements have caused varying trends in oil prices, with an overall tendency towards increases in recent days.

In Vietnam, the retail prices of commonly used petroleum products as of September 11 are as follows:

• E5 RON92 gasoline: capped at 23,744 VND per liter, which is 495 VND lower than E10 RON95-III.
• E10 RON95-III gasoline: capped at 24,239 VND per liter.
• Diesel 0.05S: capped at 28,485 VND per liter.
• 180CST 3.5S mazut: capped at 18,157 VND per kilogram.

Comparatively, the prices of gasoline and diesel in neighboring countries as of September 10, 2026, are as follows:

• Thailand: Gasoline at 30,003 VND per liter (government subsidized); Diesel at 30,669 VND per liter (government subsidized).
• Cambodia: Gasoline at 28,337 VND per liter (government subsidized); Diesel at 33,218 VND per liter.
• Laos: Gasoline at 48,216 VND per liter; Diesel at 40,176 VND per liter.
• China: Gasoline at 32,879 VND per liter (government controlled); Diesel at 29,824 VND per liter (government controlled).
• Vietnam: Gasoline at 24,239 VND per liter; Diesel at 28,485 VND per liter.

Currently, Vietnam's gasoline and diesel prices are relatively lower compared to its neighboring countries, indicating a competitive pricing strategy in the region.