Showa Yokkaichi Sekiyu operates the Yokkaichi II refinery, which is located in Mie, Japan. It is a non integrated refinery owned by Idemitsu Kosan, Mitsubishi, and others. The refinery, which started operations in 1958, has an NCI of 9.36.

Key processes of the refinery

Crude Distillation Unit (mbd): 255
Vacuum Distillation (mbd): 105
Catalytic Cracker (mbd): 61
Reformer (mbd): 61
Hydrotreater (mbd): 279
Alkylation (mbd): 17
Isomerization (mbd): 10

The capacity of the refinery is expected to remain the same as 255mbd by 2030.

Maintenance activities at Yokkaichi II refinery

The Yokkaichi II refinery witnessed one incidents during the period 2015-2020.


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.