عنوان مقاله [English]
Iran as second gas and third oil world power, has a good capacity to absorb international investment but its legislation hasn’t took a fixed policy for investment in petroleum. International investment in recent decades take account as an acceptable method in petroleum however, it was forbidden by some particular laws in oil and gas field. In parallel with normal laws, there are some temporary laws, which are performed in specified period. In performance period of these kind of laws (which are nominated as development acts), any contrary law don’t be execute. In this article firstly, it is tried to distinguish between available investment methods in up-stream and down-stream. Secondly, it is in attempt to find appropriate legal way to contracting and finally, some suggestion to Iranian parliament have be presented in order to take some easier approach for petroleum investors.