Iranian petroleum industry is a large and vastly developed industry with highly rated and valuable resources and capabilities as evidenced by a review of the following data and general information: NIOC controls huge deposits of crude oil from which over 130.798 billion barrels can be exploited in the form of primary and secondary recoveries. The huge reserves of natural gas put Iran in the second place, in terms of the natural gas reserve quantity, among other countries, only next to the Russian Federation, with an estimate of proven reserve quantity close to 23 bcm. There are, at present, eight (8) refineries and one (1) refinery complex in the country with a total refining capacity of over 1,5 mb/d. Abundance of basic material, like natural gas, in the country provide favorable conditions for development and expansion of petrochemical plants. Thus NPC has succeeded in the recent years in producing a wide range of petrochemicals and increasing its production, in terms of quantity, to a new level. Concurrent with the expansion of petroleum industry and the need for some changes in its organizational structure, certain radical and noteworthy reforms were made, in the recent years, in the organizational structure of Iranian petroleum industry. More ..... National Iranian Oil Company (NIOC) NIOC, the world's second largest oil and gas company in terms of domain of activities, has successfully discovered twice the amount of depleted oil and natural gas reserves so far. According to international figures, the total reserves of crude oil in the Middle East are 741.6 billion barrels, of which Iran possesses 18.4 percent More ..... National Petrochemical Company(NPC) The National Petrochemical Company (NPC) , a subsidiary to the Iranian Petroleum Ministry,is owned by the government of the Islamic Republic of Iran . It is responsible for the development and operation of the country's petrochemical sector.Founded in 1964,NPC began its activities by operating a small fertilizer plant.Today,NPC is the second largest producer and exporter of petrochemicals in the Middle East .Over these years,it has not only expanded the range and volume of its products, but it has also taken steps in areas such as Research and Technology to achieve more self-sufficiency More ..... National Iranian Gas Company(NIGC) National Iranian Gas Company ( NIGC) was established in 1965 as one of the four principle companies affiliated to the Ministry of Petroleum of Islamic Republic of Iran . This Company from the beginning of establishment up to now , appropriate to socioeconomical development growth and utilizing natural gas as one of the important sources in supplying fuel and energy production and obtaining some part of the required exchange , has gradually achieved various capabilities , competences , resources and possibilities including specialized and efficient man power with theoretical and actual insight and knowledge as well as numerous advanced workshops , machinery equipment and tools to arrange companies operations More ..... National Iranian Oil Refining and Distribution Company(NIORDC) National Iranian Oil Products Refining &Distribution Company has been formed more than one decade ago and started its activities in a new framework and structure. Nevertheless, this company can be truly known as the inheritor of 90 years experiences in Iran oil industry in the fields of refining, oil products transportation and distribution and oil establishments engineering and construction.After being formed from March 8, 1991 , this company has performed National Iranian Oil Company�s duties in the area of all activities related to crude oil transfer to the refineries and export jetties, processing, production and distribution of numerous oil main products and byproducts throughout Iran, marketing and exporting special products surplus, construction of refineries, marine platforms, pipelines and communication networks, ensuring internal and long distance, industrial and official headquarters of Oil Ministry communication with extreme capability. More .....