National Iranian Oil Refining and Distribution operates the Tehran cracking refinery, which is located in Tehran, Iran. According to GlobalData, who tracks and profiles more than 1,400 refineries worldwide, it is a non integrated cracking owned by National Iranian Oil Refining and Distribution. The refinery started operations in 1969 and has a Nelson Complexity Index (NCI) of 6.4. Buy the profile here.

Key refinery processes

Crude Distillation Unit (mbd): 250
Vacuum Distillation (mbd): 48
Hydrocracker (mbd): 57
Hydrotreater (mbd): 129
Isomerization (mbd): 18

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

During the period 2021-2025, the Tehran refinery cracking is expected to witness an estimated $90.9m of capex.

Maintenance activities at Tehran cracking refinery

The Tehran refinery cracking witnessed seven incidents during the period 2017-2022.

Upcoming expansion project at Tehran cracking refinery

CCR Unit

About National Iranian Oil Refining and Distribution

National Iranian Oil Refining and Distribution Co (NIORDC) is an oil and gas company that provides refinery processing solutions. The company’s products offerings include crude oil, gas and other petroleum products. It offers services such as refining, transportation, export, import and distribution of petroleum and crude oil products. NIORDC also provides engineering and telecommunications services to supply chain companies. The company offers its implementation and management services to pipelines, refineries, and telecommunication network projects. It also provides internal and remote telecommunication systems for the oil industry in Iran. NIORDC is headquartered in Tehran, Iran

For more details on the Tehran cracking 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.