Thailand's fuel sales in May 2026 were 148.39 million litres/day, down 4.2% year on year but up 4.3% from April. E20 sales rose 27% to 6.45 million litres/day, helped by a 5-baht price gap versus Gasohol 95. B20 diesel reached 3.68 million litres/day across 802 stations. NGV fell 8.8% and now has 257 stations. Fuel imports rose 25.7%, and the ministry says it is diversifying away from the Middle East. For fleet or logistics owners, the gap favours E20 for compatible vehicles. Airlines are cutting some routes in the low season, so plan around fewer flights.