SK Energy operates the Ulsan coking refinery, which is located in Ulsan, South Korea. According to GlobalData, who tracks and profiles more than 1,400 refineries worldwide, it is an integrated coking owned by SK Innovation. The refinery started operations in 1964 and has a Nelson Complexity Index (NCI) of 7.25. Buy the profile here.

Key refinery processes

Crude Distillation Unit (mbd): 840
Vacuum Distillation (mbd): 94
Coking (mbd): 60
Catalytic Cracker (mbd): 127
Hydrocracker (mbd): 45
Reformer (mbd): 45
Hydrotreater (mbd): 582
Alkylation (mbd): 40

The capacity of the Ulsan refinery is expected to remain the same as 840mbd by 2030.

Maintenance activities at Ulsan coking refinery

The Ulsan refinery coking witnessed five incidents during the period 2017-2022.

About SK Energy

SK Energy Co Ltd (SK Energy) is a company that produce, exports and distributes petroleum products. The company is headquartered in Republic of Korea (South Korea).

For more details on the Ulsan coking refinery, buy the profile here.


GlobalData, the leading provider of industry intelligence, provided the underlying research used to produce this article.

This information is drawn from GlobalData’s Oil & Gas Intelligence Center, which provides detailed profiles of 34,000+ oil and gas fields, 400,000+ exploration blocks, 1,100+ LNG terminals, 3,400+ gas processing plants, 5,000+ storage terminals, and 8,000+ pipelines, 1,400+ refineries and 13,000+ petrochemical plants worldwide.