S-Oil
- Company typePublic
- Founded1976
- HeadquartersSeoul, South Korea
- Headcount1,001–5,000
- GTM typeB2B
- OfferingHardware or Manufacturing
S-Oil firmographics
Firmographics- Name
- S-Oil
- Legal name
- S-Oil
- Website
- https://s-oil.com
- Company type
- Public
- Founded year
- 1976
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Ownership category
- akta.pro rank
S-Oil industry classification
Industry- Product category
- Petroleum Refining
- NAICS
- Petroleum Refineries (324110), Petroleum and Coal Products Manufacturing (324)
- SIC
- Petroleum Refining (2911)
- akta.pro primary industry
- Oilfield & Refining Specialty Chemicals (IMAEABAI)
- akta.pro secondary industry
- Sulfur & Acid Gas Feedstocks (Sulfur, Sulfuric Acid, Mercaptans) (EUALAHAH)
Keywords
Where S-Oil is headquartered
LocationHeadquarters
- HQ city
- Seoul
- HQ country
- South Korea
- HQ region
- Asia
Markets served
S-Oil business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Infrastructure, Personnel
S-Oil product offering
Product offeringCore offering
S-Oil Corporation is a South Korean petroleum and refinery company that processes crude oil into refined petroleum products including transportation fuels and petrochemical feedstocks. Founded in 1976 and headquartered in Seoul, the company operates refining assets primarily in Ulsan, South Korea, and sells its output to industrial buyers, fuel distributors, and downstream petrochemical markets.
Differentiator
Problem solved
Functional benefit
Products and services
- Refined Petroleum Products
- Petrochemical Feedstocks
Companies that use S-Oil
Customer profileIdeal customer profiles1 record
S-Oil technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
S-Oil partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered minor.
- Ulsan Free Economic Zone AuthorityminorThe Ulsan Free Economic Zone Authority and Ulsan Creative Economy Innovation Center are hosting the '2026 UFEZ Large, Medium, and Small Coexistence Investment Platform Contest' to discover and nurture promising startups and SMEs in strategic industries. S-OIL is one of 13 partner companies participating to provide technology needs and promote open innovation with selected companies.
- Ulsan Creative Economy Innovation CenterminorThe Ulsan Creative Economy Innovation Center is co-organizing the '2026 UFEZ Large, Medium, and Small Coexistence Investment Platform Contest' with the Ulsan Free Economic Zone Authority. S-OIL participates as one of 13 partner companies to support open innovation with selected startups and SMEs in strategic industries including future mobility, hydrogen, and low-carbon energy.
Recent moves3 records
Expansion highlights3 records
S-Oil competitors and assessment
Company assessmentDirect peers
- ENEOS Holdings: Japan's largest refiner with significant petrochemical operations; close functional and geographic peer for S-Oil in the regional refining and chemicals value chain.
- SK Energy: South Korea's largest refiner and operator of the Ulsan complex; directly comparable in crude refining capacity, retail network, and petrochemical integration.
- GS Caltex: Second-largest Korean refiner with integrated refining and petrochemical operations in Yeosu; offers nearly identical product slate and customer base to S-Oil.
- Hyundai Oilbank: Korean refiner with petrochemical and lube base oil operations; comparable in scale and downstream diversification to S-Oil's Onsan complex.
Broad incumbents
- Reliance Industries: Indian integrated energy and petrochemical major; comparable in refining + petrochemical mix and global export orientation, though substantially larger in scale.
- ExxonMobil: Global integrated major; provides valuation and capital-discipline benchmark for integrated refining and petrochemical operators, including S-Oil.
- Saudi Aramco: Majority shareholder of S-Oil and global integrated oil major; upstream + downstream model provides a benchmark for valuation and capital allocation.
- Shell: Global integrated oil major with substantial refining and petrochemical footprint; comparable in product slate and trading sophistication, useful as a profitability benchmark.
Regional players
- Idemitsu Kosan: Japanese refiner with integrated petrochemicals; comparable in scale, product mix, and energy-transition positioning in the East Asian refining cluster.
- Formosa Petrochemical: Taiwanese integrated refiner and petrochemical producer; comparable asset configuration, regional Asian export focus, and exposure to naphtha-based petrochemical margins.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights5 records
Customer concentration
S-Oil financial estimates
Financial estimateRevenue estimate
Valuation estimate
S-Oil leadership team
Management profileNumber of profiles
Profiles1 record
S-Oil funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
S-Oil M&A and investment
M&A and investmentM&A
Investments5 records
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about S-Oil
What does S-Oil do?
S-Oil Corporation is a South Korean petroleum and refinery company that processes crude oil into refined petroleum products including transportation fuels and petrochemical feedstocks. Founded in 1976 and headquartered in Seoul, the company operates refining assets primarily in Ulsan, South Korea, and sells its output to industrial buyers, fuel distributors, and downstream petrochemical markets.
Is S-Oil a public or private company?
S-Oil is a public company. It is classified as public and is currently operating.
When was S-Oil founded?
S-Oil was founded in 1976. It employs 1,001 to 5,000 people.
Where is S-Oil based?
S-Oil is headquartered in Seoul, South Korea, in the Asia region.
Who are S-Oil's main competitors?
Direct peers on record are ENEOS Holdings, SK Energy, GS Caltex and Hyundai Oilbank. Broad incumbents are Reliance Industries, ExxonMobil, Saudi Aramco and Shell. Regional players are Idemitsu Kosan and Formosa Petrochemical.
Does S-Oil have an API?
No public API is recorded for S-Oil.
What industry is S-Oil in?
S-Oil's product category is Petroleum Refining. Its primary akta.pro industry code is IMAEABAI, Oilfield & Refining Specialty Chemicals, with a secondary code of EUALAHAH, Sulfur & Acid Gas Feedstocks (Sulfur, Sulfuric Acid, Mercaptans). Its NAICS code is 324110 and its SIC code is 2911.