Mobin Energy Persian Gulf Company, as one of the largest centralized utility units in the world, with an area of ​​over 88 hectares in Phase One of the South Pars Special Economic Zone in Assaluyeh, plays a key role in providing energy and infrastructure services for petrochemical complexes.

Tabriz Oil Refinery, one of the most important refining centers in Iran, plays a key role in supplying the liquid fuel needed by northwest Iran by providing about 7 percent of the country's crude oil refining capacity.

Parsian Oil and Gas Petrochemical Holding is one of the major players in the country's petrochemical industry, which, with about 20 percent of Iran's production capacity and complexes such as Pardis and Zagros, has earned the title of the country's largest urea producer and one of the most important methanol producers in the Middle East.