The popular fuel RON95 dropped 1.27% to VND24,910 ($0.98) per tael. Biofuel E5 RON92 dipped 1.28% to VND23,910.
Diesel plummeted 3.4% to VND20,710, the lowest since March 28.
Global fuel prices fluctuated in the last seven days amid tension between Israel and Iran, declining inventory of crude oil in the U.S., and ongoing Russia-Ukraine conflict, according to regulators.
Gasoline dropped 2.4% to $105 per barrel while diesel declined by 4.8% to $101.