Thai Oil Public Co. Ltd. is engages in the production of petroleum products for domestic distribution. It is also involved in petroleum refining, pipeline transportation, and carbon black and par xylene production. The firm operates through the following segments: Oil Refinery, Lube Base Oil Refinery, Petrochemical, Power Generation, Marine Transportation Services, Solvent, Ethanol and Other. The company was founded in 1961 and is headquartered in Bangkok, Thailand.