The Oil Fund committee (กบน.) approved retail increases effective 2 September 2026 at 05.00: diesel +0.75 baht/litre (B7 now 39.14 baht) and benzine/gasohol +0.60 baht/litre (Gasohol 95 now 38.29 baht). The rise follows Singapore diesel reaching about US$164/bbl on 1 September amid US-Iran tensions, and the Oil Fund is paying about 357 million baht a day in subsidies. Premium grades were unchanged at major stations. Transport and delivery businesses should update fuel cost assumptions and quotes now, and expect pressure on freight and input prices to follow.