Thai Oil stock holds on lower crude prices and refinery margins
Published on 08/29/2026 at 09:09 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Thai Oil Public Company Limited (TH0796010013) is trading against a weaker crude backdrop after Brent settled at $89.31 a barrel on August 28, 2026, while the Thailand SET index finished that session at 1,589.08 with a 0.73% decline.
That matters for a refiner like Thai Oil because product spreads and crude input costs often move together, and the latest session still showed oil above the $80 level for WTI at $83.40.
Crude sets the tone
The latest oil move came after Brent fell 0.43% and WTI slipped 0.16% in the August 28, 2026 session, a reminder that Thai Oil's margin backdrop still tracks the regional refining cycle.
For Thai Oil, the clearer comparison is the weekly move in crude: Brent dropped 5.38% and WTI lost 4.20%, a larger swing than the one-day change and a useful signal for input-cost pressure.
Thailand market context
The local market also stayed softer, with the SET ending August 28, 2026 at 1,589.08 after a 0.73% decline and the exchange showing market capitalization of 20,036,351.08 million baht for the broader market. That gives energy names a weaker tape to work with even before company-specific trading flows are considered.
Set against that, the most visible move in the backdrop is still the commodity side: Brent at $89.31 and WTI at $83.40 leave Thai refineries with a mixed cost-revenue setup rather than a clean tailwind.
Representative product
Thai Oil's output is anchored by refined fuels such as diesel and gasoline, which means its earnings sensitivity remains tied to crack spreads, crude prices and domestic fuel demand.
Shares and valuation
Thai Oil stock can be read as a refinery proxy on August 29, 2026, with the broader market context now defined by Brent at $89.31, WTI at $83.40 and the SET at 1,589.08 on the prior session.
Fact box
Company: Thai Oil Public Company Limited
ISIN: TH0796010013
Ticker: TOP
Exchange: SET
Sector / Industry: Energy / Oil and Gas Refining and Marketing
Index membership: SET50
More on Thai Oil stock
Refinery stocks tend to react quickly when crude swings, and Thai Oil's August 29, 2026 context is dominated by the same two numbers that matter most for the sector: Brent at $89.31 and WTI at $83.40.
