S-Oil
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
S-Oil refines crude oil into everyday fuels, such as gasoline, diesel, and jet fuel, as well as petrochemical feedstocks and lubricants used by drivers, airlines, manufacturers, and industrial customers.
It supplies these products to domestic and international buyers across the energy and chemicals supply chain. Listed on KOSPI, Korea's main stock exchange, S-Oil operates across three broad segments: refining, petrochemicals, and lubricants.
Summary is AI-generated and may contain errors · figures from DART filings
S-Oil in five facts
What does S-Oil do?
S-Oil refines crude oil into everyday fuels, such as gasoline, diesel, and jet fuel, as well as petrochemical feedstocks and lubricants used by drivers, airlines, manufacturers, and industrial customers.
Where is S-Oil listed and in which sector?
S-Oil (Korean name: S-Oil) trades under KRX code 010950 on KOSPI, the main board of the Korea Exchange. It is classified in the Energy sector, Oil & Gas.
How large is S-Oil?
Its market capitalisation was US$12.6B on 2026-10-21, which puts it in this site's large-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were S-Oil's latest annual revenue and operating profit?
For fiscal year 2025, S-Oil reported revenue of US$25.8B, operating profit of US$177.8M and net income of US$133.6M, per its annual report on DART (data retrieved from DART on 2026-09-08). Revenue was down 6.5% on the previous year.
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-09-08
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, converted from won at 1 USD ≈ ₩1,325 (2026-10-21 close)
- Company data updated
- 2026-10-21
- Company summary
- AI-generated from filings; may contain errors. Information only, not investment advice.
- Supply contract signed
S-Oil disclosed a supply contract with a company, worth US$873M, about 3.4% of its recent annual revenue, running through Sep 2027.
Supply contract · Oct 20 - [Amended] Supply contract signed
S-Oil updated a previously disclosed supply contract with a company, now worth US$1.31B, about 4.8% of its recent annual revenue, running through Sep 2026.
Supply contract · Oct 19 - [Amended] Supply contract signed
S-Oil updated a previously disclosed supply contract with a company, now worth US$966M, about 3.5% of its recent annual revenue, running through Sep 2026.
Supply contract · Oct 19 - Report on securities held by executives/major shareholdersOct 15
- Report on securities held by executives/major shareholdersOct 6
- Report on securities held by executives/major shareholdersOct 2
- Report on large shareholdings (5% rule) (standard)Oct 2
- Report on securities held by executives/major shareholdersOct 2
- Report on large shareholdings (5% rule) (standard)Oct 2
- Change in shares held by the largest shareholderOct 1
- Change of largest shareholder
S-Oil disclosed a change of largest shareholder from Aramco Overseas Company B.V. (AOCBV) to Aramco Downstream Asia Pte. Ltd. (ADA), both affiliates of Saudi Arabian Oil Company, as part of an intragroup transfer of all 71,387,560 common and 351,502 preferred S-Oil shares held by AOCBV, with aggregate ownership unchanged at 63.43%.
Ownership change · Oct 1 - Report on securities held by executives/major shareholdersSep 14
- Supply contract signed
S-Oil disclosed a supply contract, worth US$3.05B, about 12% of its recent annual revenue, running through Sep 2027.
Supply contract · Sep 10 - [Amended] Cash/in-kind dividend decision
S-Oil updated its declared cash dividend of US$0.57 per share, equal to about 0.6% of the recent share price.
Dividend · Aug 11 - Cash/in-kind dividend decision
S-Oil declared a cash dividend of US$0.56 per share, equal to about 0.6% of the recent share price.
Dividend · Aug 10 - Operating results (consolidated) (preliminary) (fair disclosure)
S-Oil filed provisional (unaudited) consolidated results for Q2 2026: revenue of US$7.94B (+40.9% year on year), operating profit of US$676M (from a loss a year earlier) and net income of US$360M (from a loss a year earlier).
Earnings · Aug 3 - Operating results (consolidated) (preliminary) (fair disclosure)
S-Oil filed provisional (unaudited) consolidated results for Q1 2026: revenue of US$6.07B (−0.5% year on year), operating profit of US$835M (from a loss a year earlier) and net income of US$489M (from a loss a year earlier).
Earnings · May 11 - [Amended] Supply contract signed
S-Oil updated a previously disclosed supply contract with Aramco Trading Singapore PTE. LTD., now worth US$624M, about 2.5% of its recent annual revenue, running through Mar 2026.
Supply contract · Apr 20 - Cash/in-kind dividend decision
S-Oil declared a cash dividend of US$0.23 per share.
Dividend · Feb 13 - [Amended] Change of 30% or more in revenue or profit/loss structure (15% for large companies)
S-Oil updated its previously filed consolidated results for FY2025: revenue of US$23.8B (−6.5% year on year), operating profit of US$164M (−44.2% year on year) and net income of US$123M (from a loss a year earlier).
Earnings · Feb 13 - Supply contract signed
S-Oil disclosed a supply contract with Saudi Basic Industries Corporation (SABIC), worth US$3.77B, about 15% of its recent annual revenue, running through Dec 2030.
Supply contract · Feb 9 - Operating results (consolidated) (preliminary) (fair disclosure)Earnings · Jan 26
- Change of 30% or more in revenue or profit/loss structure (15% for large companies)Earnings · Jan 26
- [Amended] Supply contract signedSupply contract · Jan 14
- [Amended] Supply contract signedSupply contract · Jan 14
- [Amended] Supply contract signedSupply contract · Jan 14