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010950 on Korean Stock Exchange

S-Oil

Logo: S-OIL, Public domain, via Wikimedia Commons4

South Korean company

S-Oil Corporation (Korean: 에쓰-오일) is a petroleum and refinery company, headquartered in Seoul, South Korea. It was established in 1976 under its original name Iran-Korea petroleum company (Korean: 한이석유). It produces petroleum, petrochemical, and lubricant products.2 It was founded by SsangYong Group.1 It is part of Saudi Aramco.1 Its shares trade on Korean Stock Exchange under the symbol 010950.1 Wikipedia text CC BY-SA 4.0

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Last updated Oct 21, 2026.

Overview

Jan 6, 1976Founded1

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  • Ticker010950 on Korean Stock Exchange1
  • Industrypetroleum industry1
  • HeadquartersSeoul1
  • Websitewww.s-oil.com
  • Legal formjusik hoesa1
  • LEI988400QTUXYDN8W3MZ323
  • StatusActive3
  • LEI statusIssued and current3
  • Registered address서울특별시 마포구 백범로 192 (공덕동), 04196 Seoul, South Korea3
  • Registered withNational Tax Service, 116-81-367433

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S-oil Company
Photo: 95016maphack, CC0, via Wikimedia Commons6

S-Oil Corporation (Korean: 에쓰-오일) is a petroleum and refinery company, headquartered in Seoul, South Korea. It was established in 1976 under its original name Iran-Korea petroleum company (Korean: 한이석유). It produces petroleum, petrochemical, and lubricant products. The company was listed as a Fortune Global 500 company in 2009 (Rank 441).2

Corporate structure

S-Oil is part of a group headed by Saudi Aramco. 62 entities, 13 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Saudi Aramco Adh Dhahran, Saudi Arabia
    • Aramco Chemicals Company 100% · Adh Dhahran, Saudi Arabia
    • Aramco Overseas Company B.V. 100% · 's-Gravenhage, Netherlands
      • S-Oil 63.41% · Seoul, South Korea
    • Aramco Financial Services Company Subsidiary · 100%
    • Arlanxeo Subsidiary · 100% · Maastricht, Netherlands
    • Motiva Enterprises Subsidiary · 100% · Houston, Texas, United States
    • Vela International Marine Subsidiary · 100% · Dubai
    • SABIC Subsidiary · Riyadh
    • Saudi Aramco (United States) Subsidiary · Houston, United States
    • Showa Shell Sekiyu Subsidiary · Minato Ku, Japan
    • Valvoline Subsidiary · Lexington, Kentucky, United States
      • Valvoline Instant Oil Change Subsidiary
      • Funding Corp. I Subsidiary · Delaware, United States
      • NuWash, Inc. Subsidiary · Delaware, United States
      • OCH International, Inc. Subsidiary · Oregon, United States
      • OCI Merger Sub Inc. Subsidiary · Delaware, United States
      • Valvoline Branded Finance, Inc. Subsidiary · Delaware, United States
      • Valvoline Canada Retail Services Corp. Subsidiary · British Columbia, Canada
      • Valvoline Canadian Franchising Corp. Subsidiary · British Columbia, Canada
      • Valvoline Express Care Subsidiary · United States
      • Valvoline HD LLC Subsidiary · Delaware, United States
      • Valvoline Instant Oil Change Franchising, Inc. Subsidiary · Delaware, United States
      • Valvoline Licensing and Intellectual Property LLC Subsidiary · Delaware, United States
      • Valvoline LLC Defined Benefit Trust Subsidiary · Lexington, Kentucky, United States
      • Valvoline Quick Lube Corp. Subsidiary · British Columbia, Canada
      • Valvoline US LLC Subsidiary · Delaware, United States
      • Valvoline US Retail Services LLC Subsidiary · Delaware, United States
      • VIOC Funding, Inc. Subsidiary · Delaware, United States
      • VRS HoldCo LLC Subsidiary · Delaware, United States
    • أرامكو لإمداد الزيت الخام Subsidiary
    • Dussur Stake · 25%
    • National Shipping Company of Saudi Arabia Stake · 20% · Riyadh
    • HD Hyundai Oilbank Stake · 17% · Seosan-si, South Korea
      • 에이치디현대쉘베이스오일 주식회사 Subsidiary · 60% · Seosan-si, South Korea
    • Horse Powetrain Ltd Stake · 10% · London
    • ARAMCO DOWNSTREAM ASIA PTE. LTD. Subsidiary · 100% · Dhahran, Saudi Arabia
    • ESMAX DISTRIBUCION SPA Subsidiary · 100% · Santiago, Chile
    • Saudi Aramco Entrepreneurship Ventures Company Limited Subsidiary · 100% · Adh Dhahran, Saudi Arabia
    • Saudi Petroleum International Subsidiary · 100%
    • Saudi Refining Subsidiary · 100% · Saudi Arabia
    • Johns Hopkins Aramco Healthcare Subsidiary · 80% · Dhahran, Saudi Arabia
    • Yanbu Aramco Sinopec Refining Company (YASREF) Ltd Subsidiary · 62.5% · Yanbu, Saudi Arabia
    • ARAMCO ASIA SINGAPORE PTE. LTD. Subsidiary · Singapore, Singapore
    • Aramco Europe B.V. Subsidiary · S-Gravenhage, Netherlands
    • ARAMCO FUELS POLAND SPOLKA Z OGRANICZONA ODPOWIEDZIALNOSCIA (ARAMCO FUELS POLAND SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ) Subsidiary · Gdańsk, Poland
    • and 14 more

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

The story

Founded by SsangYong Group on Jan 6, 1976.1

S-Oil Corporation was founded in 1976 as the Iran-Korea Petroleum Company reflecting early international collaboration. In 1980 Completion of the Onsan Refinery in Ulsan, South Korea, marking its entry into large scale refining. After Iran Revolution Iran's overseas investments were disrupted, and its stake in the South Korean venture became politically and commercially untenable. In 1980 The company was renamed SsangYoung Oil Refining Company, effectively ending Iran's direct involvement.

From Wikipedia’s article on S-Oil, shared under CC BY-SA 4.0.5

Subsidiaries and ownership

Parent company

Parent company (GLEIF)

Ultimate parent

From Wikidata.1 Ownership links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); each one cites its LEI record.

Timeline

  1. Jan 19, 2015Parent Directly consolidated by Aramco Overseas Company B.V.3
  2. May 8, 1987Went public Listed on Korean Stock Exchange1
  3. Jan 6, 1976Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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