Behnam Behniai - Founder of the International Institute for Arbitration and Legal Consulting Behnam Behniai (IAB) Doctorate in Oil and Gas Strategy and Management.
Niloofar Heidarpoor - LLM. in International Trade and Economic Law from Tehran University

In the process of contractual interpretation, the in-text and also out-text categories are required to determine the intention of contract parties, including semantic dimensions and terms supplied in text, through multiple readings. To interpret a contract, the fundamental is being conformity of the will of parties and not necessity of declaring and conveying it in special form, in international contract law and also Iranian law. To resolve the contractual ambiguity and to find the contract parties common intention, the purpose of this paper is explaining most important principles governing the interpretation of international commercial contracts with an Emphasis on the Energy Industry and the manner of adaption and entering these principles in the Iranian law system.

The Interpretation Principles, A Good Faith Principle, The Validity Principle, Interpretation of Contract as a whole, Contra Proferentem Rule