International Energy Law:With particular reference to public contracts and some of their economic consequences

In this paper the definition of Energy International Law; moreover the efforts and policies to create a legal system for energy in the regional and international level have been investigated.However, the intention of these efforts and measures was known to establish balance between the interest of foreign investors and host countries and less developed investment receipt, but as this paper has shown the original and ultimate goal, to comply with W.T.O principles, was strengthening and supplying the interests of investors instead of weakening the sovereignty of investment receptive countries. Legal nature of oil and gas contracts and attempts at international level to adjust and to change their terms foreign investors has been paid, the efforts in which the first part of this paper has been studying. However, despite the bureaucracy, lack of efficient management of exploration operations, production and exploitation of oil sources and the need for financial capital and technology of investment receptive and the ways to overcome obstacles and problems can be worked. The other important issues that review their second and third parts from the article.