Thai Oil Public Company Limited (OTCMKTS: TOIPY) is Thailand’s largest integrated oil refinery and petrochemical company. A subsidiary of state-controlled energy giant PTT Public Company Limited, Thai Oil operates a fully integrated complex in Sriracha, Chonburi Province, combining crude oil refining with downstream petrochemical and aromatics production. The company’s core activities include the refining of a broad slate of crude oils into transportation fuels such as gasoline, diesel, jet fuel and marine fuels, as well as production of petrochemical feedstocks including benzene, toluene, xylene and paraxylene.
In addition to its refining operations, Thai Oil manages a network of terminals and logistics assets to distribute products domestically and to export markets across Southeast and East Asia. Its integrated utilities and power generation facilities help support plant operations, while a dedicated research and technology center focuses on process optimization, environmental performance and product innovation. The company also produces base oils and specialty lubricants, serving automotive, industrial and marine customers with a range of high-quality petrochemical derivatives.
Headquartered in Bangkok and originally established in the early 1960s to develop Thailand’s domestic refining capacity, Thai Oil was later listed on the Stock Exchange of Thailand and participates in regional energy and petrochemical industry initiatives. As part of the PTT Group, the company is governed by a Board of Directors appointed in line with Thai corporate governance standards, and it maintains strategic partnerships and joint ventures to expand its feedstock access and product portfolio. Thai Oil continues to focus on operational reliability, environmental stewardship and the development of higher-value refinery and petrochemical products to serve growing markets in the Asia-Pacific region.
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