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Oil as the most important strategic commodity in Southwest Asian countries has a particular political and economic weight. Prior to the instability in oil prices which began in late 2013, the macroeconomic challenges were managed by the oil states. With the collection of systematic geopolitical rivalries in Southwest Asia, the emergence of alternative oils in the United States of America and turbulence in Geo-economic areas of the Middle East, major challenges in the political economy of oil-producing countries have been created. The Islamic Republic of Iran as one of the oil centers of Southwest Asia has experienced unstable oil prices in line with a set of challenges. Given the strategic importance of oil in Iran's political and economic basket, the present study examines the role of the structure-agency in political economy of oil in Iran. The research approach is based on the Structuration theory. The results indicate that the heterogeneity of structure-agency within the framework of the increased participation of government and interrupter factors with the economic-political background, are among the major challenges in Iran’s political economy of oil. Therefore, systematic management and integration of structure-agency can handle the challenges of Iran's income from oil prices.

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As an important country in West Asia, Turkey has an influential position on Iran's foreign policy, and considering the bilateral and trans-regional relations in the relations between the two countries, it can be very important from a geopolitical point of view. Developments in recent years in Turkey have been mainly related to the foreign policy of that country. Relations between Turkey and Iran have undergone many changes throughout history. The two countries are considered as powerful non-Arab countries in the region that have common geographical and cultural features and do not consider each other as an existential threat. In recent years, political differences between the two countries over Syria and sometimes Iraq have led to political disputes between them. This scientific study examines the impact of Turkey's geopolitical actions in Iraq and Syria on reducing Iran's regional influence. The research method is descriptive-analytical, it is descriptive because it describes Turkey's geopolitical actions in Iraq and Syria and is analytical. This is because it expresses the impact of these actions on reducing Iran's regional influence. The method of collecting information is library, based on the use of relevant letters, reports, information and valid data. The results show that although Turkey's geopolitical actions have caused conflicts between the two countries, the maturity of the two countries' diplomacy and some similarities have led to the stability of relations.