SK Energy operates the Ulsan refinery, which is located in Ulsan, South Korea. It is an integrated refinery owned by SK Innovation. The refinery, which started operations in 1964, has an NCI of 7.25.

Key processes of the refinery

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 refinery is expected to remain the same as 840mbd by 2030.

Maintenance activities at Ulsan refinery

The Ulsan refinery witnessed four incidents during the period 2015-2020.

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).


Information on the refinery is sourced from GlobalData’s refinery database that provides detailed information on all active and upcoming, crude oil refineries and heavy oil upgraders globally. Not all companies mentioned in the article may be currently existing due to their merger or acquisition or business closure.