Oil Prices Today, 18 May 2026: Latest Prices for Gasoline-Diesel Per Liter at Various Stations

Update on oil prices today, 18 May 2026 GMT+7 Check prices for all types of oil including gasoline, gasohol, and diesel from PTT, Bangchak, PT, Caltex, Susco, and Shell stations. Latest price per liter updates.

Reporter provides the latest update. Oil prices today, 18 May 2026 GMT+7 Latest prices for gasoline, gasohol, and diesel from the websites of Bangchak Corporation Public Company Limited, PTT Oil and Retail Business Public Company Limited, Shell Company of Thailand Limited, PTG Energy Public Company Limited, Susco Public Company Limited, and Chevron (Thailand) Limited are as follows.

Update on oil prices today, 18 May 2026 GMT+7

Bangchak oil prices on 18 May 2026 GMT+7

• B20 diesel is priced at 34.45 baht per liter.
• High diesel S costs 41.45 baht per liter.
• High premium diesel S is 61.25 baht per liter.
• High premium 98 costs 55.09 baht per liter.
• GSH E85S EVO is priced at 32.99 baht per liter.
• GSH E20S EVO costs 37.05 baht per liter.
• GSH91S EVO is 43.68 baht per liter.
• GSH95S EVO costs 44.05 baht per liter.

PTT oil prices on 18 May 2026 GMT+7

• B20 diesel is 34.45 baht per liter.
• Diesel is priced at 41.45 baht per liter.
• GSH E85S EVO costs 32.99 baht per liter.
• GSH E20S EVO is 37.05 baht per liter.
• GSH91S EVO is priced at 43.68 baht per liter.
• GSH95S EVO costs 44.05 baht per liter.
• Gasoline is 53.64 baht per liter.
• Super power diesel costs 61.25 baht per liter.
• Super power GSH95 is priced at 51.54 baht per liter.

Shell pump oil prices on 18 May 2026 GMT+7

• Shell FuelSave Gasohol E20 is 37.55 baht per liter.
• Shell FuelSave Gasohol 91 costs 44.18 baht per liter.
• Shell FuelSave Gasohol 95 is priced at 44.55 baht per liter.
• Shell V-Power Gasohol 95 costs 49.84 baht per liter.
• Shell FuelSave Diesel is 41.45 baht per liter.
• Shell V-Power Diesel costs 49.84 baht per liter.

PT pump oil prices on 18 May 2026 GMT+7

• Diesel is priced at 41.45 baht per liter.
• B20 diesel costs 34.45 baht per liter.
• Gasohol 95 is 44.05 baht per liter.
• Gasohol 91 costs 43.68 baht per liter.
• Gasoline is priced at 54.14 baht per liter.
• Gasohol E20 costs 37.05 baht per liter.

Susco pump oil prices on 18 May 2026 GMT+7

• Diesel is 41.45 baht per liter.
• B20 diesel costs 34.45 baht per liter.
• Gasoline is priced at 53.79 baht per liter.
• Gasohol 95 costs 44.05 baht per liter.
• Gasohol 91 is 43.68 baht per liter.
• Gasohol E20 costs 37.05 baht per liter.

Caltex pump oil prices on 18 May 2026 GMT+7

• Gold 95 Techron is priced at 55.06 baht per liter.
• Gasohol 95 Techron costs 44.05 baht per liter.
• Gasohol 91 Techron is 43.68 baht per liter.
• Gasohol E20 costs 37.05 baht per liter.
• Diesel Techron is priced at 41.45 baht per liter.
• Power Diesel Techron costs 61.25 baht per liter.

However, the above prices are average prices excluding local maintenance tax, which may vary by area.