National Iranian Oil Refining and Distribution operates the Arak refinery, which is located in Markazi, Iran. It is an integrated refinery owned by National Iranian Oil Refining and Distribution. The refinery, which started operations in 1993, has an NCI of 9.38.

Key processes of the refinery

Crude Distillation Unit (mbd): 250
Vacuum Distillation (mbd): 71
Catalytic Cracker (mbd): 90
Hydrocracker (mbd): 25
Reformer (mbd): 22
Hydrotreater (mbd): 262
Isomerization (mbd): 9

The capacity of the refinery is expected to remain the same as 250mbd by 2030.

During the period 2021-2025, the Arak refinery is expected to witness an estimated capex of $300m.

Maintenance activities at Arak refinery

The Arak refinery witnessed two incidents during the period 2015-2020.

Upcoming expansion project at Arak refinery

Coke Unit

About National Iranian Oil Refining and Distribution

National Iranian Oil Refining and Distribution Company (NIORDC), is an oil and gas company. It offers refinery processing solutions. The company’s products include petroleum products, refined products, fuels, oils, gasoline, gas oil, fuel oil, kerosene, LPG and others. It offers services such as refining, importing and exporting, crude oil transfer, oil production, oil processing, oil distribution, discharging and transportation, telecommunication, implementation and management services. It offers its implementation and management to pipelines, refineries, and telecommunication network projects. NIORDC provides discharging and transporting the imported petroleum products to the consumption centers. The company provides internal and remote telecommunication systems for the oil industry in Iran. NIORDC is headquartered in Tehran, Iran.


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.