The current thesis will represent a mapping of the Gas industry in Italy, with a focus on the liberalization process of the industry that has changed the course of the internal market. It is fundamental to understand that the Gas industry is a part of a major Industry: “The Utilities Industry”. The processes of liberalization of the industry began in May the 23rd of 2000 with the “Decreto Letta” (Enrico Letta: Ministro dell’industria, del commercio e dell’artigianato), the Law decree 164/2000 has established that the following activities are completely liberalized in the Gas industry in Italy: -??Gas Import; -??Transportation and dispatching; -??Storage; -??Distribution; -??Sale of Gas.