Anca Sinea is a researcher in the Political Science Department of the Babei-Bolyai University. She holds a PhD in Political Science. She has a double Bachelor’s degree in International Relations (from the National School for Political and Administrative Studies, Bucharest) and Political Science (Université Paris X) and a Master’s diploma in International Relations from the Diplomatic Academy of Vienna and the University of Vienna. Her subjects of interest include resource politics, energy diplomacy, diplomatic protocol and national security.

• 1 Introduction – theoretical and political relevance General Methodological Considerations Structure 2 Regional Cooperation – A Short Theoretical Perspective Regional Cooperation Region, Regionalism, and Regionalisation Regionalism from a Historical Perspective Actoriality in regionalism The vectors of regionalism Projecting national interest at the level of regional cooperation platforms 3 Platforms of cooperation in the field of energy in Central and South Eastern Europe Cooperation of system operators The cooperation framework of operators in the field of electricity Cooperation for the functioning of the electro-energetic system Cooperation for the purpose of system development Cooperation for the implementation of the free market principles The cooperation frame of the operators from the gas sector Cooperation for operating the gas system Cooperation for implementing the principles of the free market Cooperation for developing the gas system From regional cooperation to political regions in the field of energy Cooperation of the energy market regulating authorities Regional initiatives of ACER and cooperation based on the principles of the Third Energy PackageOther cooperation platforms of the authorities regulating the energy market ERRA CEER EnR 4 Regional cooperation frameworks outside the third energy package The Energy Community Initiatives in the field of energy infrastructure The Western Balkan 6 Initiative or the Berlin Process (WB6) EU4Energy Governance CESEC The Energy Charter Treaty The 16+1 energy cooperation format The Eastern Partnership INOGATE The Three Seas Initiative 5 The regulation of regional energy cooperation in Romania The National Defence Strategy The Energy Strategy The role of the Ministry of Energy as an actor in the regional cooperation process in the field of energy The role of the ANRE as an actor in the process of regional cooperation in the field of energy The role of the Ministry of Foreign Affairs as an actor in the process of regional cooperation in the field of energy Conclusion 6 Conclusions General Conclusions Bibliography Index