The popular fuel RON95 dropped 2.47% to VND21,310 (US$0.85) per liter.
Biofuel E5 RON92 declined by 2.20% to VND20,420.
Diesel went down 2.20% to VND19,140.
In the last seven days, fuel prices were influenced by ceasefire talks in the Middle East, declining U.S. crude oil inventory, and the possibility of the Federal Reserve cutting its rates, regulators said.
Gasolines dropped 2.6-2.7% and fuels fell 2.2-3.3% in the period. RON95 is now at around $88.5 per barrel, and diesel at $90.5.