 N.I.O.C National Iranian Oil Co. |
 N.I.G.C National Iranian Gas Co. |
 N.I.P.C National Iranian Petrochemical Co. |
 N.O.R.D.C National Iranian Oil Refining and Distribution Co. |
NIOC SUBSIDIARIES |
NIGC SUBSIDIARIES |
NIPC SUBSIDIARIES |
NIORDC SUBSIDIARIES |
 National Iranian Gas Export Company |
 Iranian Gas Transmission Co. |
 Pars Petrochemical Company |
 National Iranian Oil Products Distribution Co. |
 National Iranian South Oil Company |
 South Pars Gas Co. |
 Shiraz Petrochemical Company |
 Iranian Oil Pipeline and Telecommunication Co. |
 National Iranian Offshore Oil Company |
 Sarkhoon & Qeshm Gas Treating Co. |
 Kharg Petrochemical Company |
 National Iranian Oil Engineering & Construction Co. |
 National Iranian Central Oil Fields Co. |
 Ilam Gas Treating Co, |
 Razi Petrochemical Company |
 Abadan Oil Refining Company |
 Khazar Exploration & Production Co. |
 Parsian Gas Treating Co. |
 Esfahan Petrochemical Company |
 Isfahan Oil Refining Company |
 Petroleum Engineering & Development Co. |
 Fajre Jam Gas Treating Co. |
 Bandar Emam Petrochemical Company |
 Arak Oil Refining Company |
 Pars Oil and Gas Company |
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 Arak Petrochemical Company |
 Bandar Abbas Oil Refining Company |
 Pars Special Economic Energy Zone Co. |
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 Tabriz Petrochemical Company |
 Tehran Oil Refining Company |
 National Iranian Oil Terminals Company |
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 Khorasan Petrochemical Company |
 Tabriz Oil Refining Company |
 National Iranian Drilling Company |
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 Urmia Petrochemical Company |
 Shiraz Oil Refining Company |
 North Drilling Company |
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 Petrochemical Industries Developement Management Co. |
 Kermanshah Oil Refining Company |
 PetroIran Development Company |
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 Iran Petrochemical Commercial Co. |
 Lavan Oil Refining Company |
 Ahwaz Pipe Mills Company |
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 Petrochemical Operation Services Co. |
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 Petropars |
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 Petzon Org. |
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 Fuel Consumption Optimization Co. |
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 International Petrochemical Commercial Co |
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 National Iranian Tanker Co. |
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 Exploration Service Company |
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 Kala Naft London Ltd. |
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 MSP Kala Naft Co. Tehran |
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 Arvandan Oil and Gas Company |
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