Petroleum Act B.E.2514,Petroleum Act (No.2)B.E.2516,Petroleum Act (No.3)B.E.2511, Petroleum Act(No.4)B.E.2532 / Mineral Fuels Division,Department of Mineral Resources,Ministry of Justice
includings Petroleum Income Tax Act B.E.2514,Petroleum Income Tax Act(No.2)B.E.2516,Petroleum Income Tax Act (No.3)B.E.2522,Petroleum Income Tax Act (No.4)B.E.2532