Marathon Petroleum operates the Carson refinery, which is located in California, the US. It is a non integrated refinery owned by Marathon Petroleum. The refinery, which started operations in 1922, has an NCI of 13.57.

Key processes of the refinery

Crude Distillation Unit (mbd): 363
Vacuum Distillation (mbd): 205
Coking (mbd): 109
Catalytic Cracker (mbd): 103
Hydrocracker (mbd): 92
Reformer (mbd): 80
Hydrotreater (mbd): 302
Alkylation (mbd): 29
Isomerization (mbd): 41

The capacity of the refinery is expected to remain the same as 363mbd by 2030.

During the period 2021-2025, the Carson refinery is expected to witness an estimated capex of $33.75m.

Maintenance activities at Carson refinery

The Carson refinery witnessed seven incidents during the period 2015-2020.

Upcoming expansion project at Carson refinery

Other Hydrocracker (LARIC)

About Marathon Petroleum

Marathon Petroleum Corp (MPC) is a downstream energy company that refines, markets and transports petroleum products. The company owns and operates refineries in the Gulf Coast and Midwest regions in the US. It also owns common carrier pipeline systems that transport crude oil and refined products to the company’s refineries, terminals, and other pipeline systems. MPC sells gasoline and a range of merchandise through several convenience stores. An integrated system provides crude oil, feedstock, and petroleum-related products through a distribution network in the Midwest, East Coast, Southeast and Gulf Coast regions in the US. The company also has interests in gas processing plants, natural gas liquid (NGL) fractionation facilities and a condensate stabilization facility. MPC is headquartered in Findlay, Ohio, the US.


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.