SK Energy Ulsan
A 840,000 barrels per calendar day petroleum refinery in Ulsan, KR, operated by SK Innovation. Nelson Complexity 13.
Record
- Rated capacity
- 840,000 bpd (atmospheric crude distillation, calendar day)
- Nelson Complexity Index
- 13
- Status
- Operator
- SK Innovation
- Parent
- SK Innovation Co. Ltd. (KRX:096770)
- Supplier graph
- bomforge.com/companies/sk-innovation
- Coordinates
- 35.5100, 129.3600
Notes
January 7, 2026 news confirms FCCU restart at Ulsan refinery after maintenance, indicating return to operational status. The March 12 announcement of planned crude unit maintenance represents a future transition, not current status. Current state is operational post-FCCU restart.
What coverage reports
SK weighs Ulsan cracker shutdown as S.Korea’s petrochemical shakeout deepens
2025-12-16 · 1 publisher filed it
incident 5 · operations 1
These are counts of what publishers filed about this plant, not an operating status. A quiet month means nobody named this facility that month, which is a fact about coverage and not about the plant. Where this site states how a refinery is running it says so in the facts table above, from the curated dataset, and cites it there.
Wire
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General LowGreater Metropolitan Transportation Committee Chairman Checks Asphalt Supply at SK Energy Ulsan Plant Amid Middle East Instability아시아경제 · matched ulsan
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General LowThe toll on Ulsan Bridge, which connects the Korea Petrochemical Corporation in Nam-gu, Ulsan and th..매일경제 · matched ulsan
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Maintenance LowKorea petrochemical overhaul stalls as Ulsan, Yeosu fail to reach dealChosunbiz + 1 other outlet · matched ulsan
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Maintenance MediumSK Energy plans crude unit maintenance at Ulsan refineryQuantum Commodity Intelligence · matched ulsan
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Maintenance HighSK Energy restarts FCCU at Ulsan refinery after maintenanceQuantum Commodity Intelligence · matched ulsan
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Operations CriticalSK weighs Ulsan cracker shutdown as S.Korea’s petrochemical shakeout deepensKED Global · matched ulsan
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General LowSK Ulsan Complex, home to Korea’s largest refinery and chemical plants, transforms with AI and digital transformationAsk Inno · matched ulsan
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Incident CriticalHydrogen Blast at SK Energy’s Ulsan Refinery Prompts Major Safety OverhaulChemAnalyst · matched ulsan
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Incident CriticalSK Energy pledges overhaul after fatal hydrogen explosion at Ulsan refinerygasworld + 1 other outlet · matched ulsan
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Incident CriticalLabor ministry launches inspection into SK Energy after Ulsan plant explosionkills one, injures fiveChosunbiz · matched ulsan
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Incident HighSK Energy Apologizes for Ulsan Plant Fire, Vows Measures to Prevent Recurrence아시아경제 · matched ulsan
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Incident CriticalLabor minister Kim Young-hoon orders full response to SK Energy Ulsan plant explosionChosunbiz · matched ulsan
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Incident HighSK Energy Ulsan plant fire injures five but hydrogen supply remains stableChosunbiz + 3 other outlets · matched ulsan
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Maintenance CriticalSK Energy shuts Ulsan refinery CDU for 2-week maintenanceQuantum Commodity Intelligence · matched ulsan
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Incident HighFire breaks out at SK Energy's Ulsan plant; no casualties reportedThe Korea Herald · matched ulsan
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Incident Critical(3rd LD) S-Oil CEO apologizes over Ulsan refinery blastYonhap News Agency · matched ulsan
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Incident CriticalS-Oil’s Ulsan refinery explosion leaves one dead, nine injuredThe Korea Herald · matched ulsan
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Incident HighEight injured in S. Korea’s S-Oil Ulsan refineryArab News · matched ulsan
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General LowSK Innovation Ulsan refinery starts VLSFO bunker fuel production from mid-MarchManifold Times · matched ulsan
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Expansion LowSK Energy adds new unit at Ulsan refining complexOil & Gas Journal · matched ulsan
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Incident HighOil leak at S-Oil's Ulsan refinery extends three daysYonhap News Agency · matched ulsan
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Maintenance MediumSK Energy Prepares for May Turnaround At Ulsan Refineryindustrialinfo.com · matched ulsan
Every item names this facility by city or plant name in its headline or summary. Operator-only mentions never attribute. Headlines and links belong to the publishers named.