Even now being a part of the European Union, Estonia, Latvia and Lithuania are still considered as the most vulnerable EU member states in the energy sphere. Due to their Soviet past, Baltic states have several gas pipelines on their territories coming from Russia. Moreover, several routes of oil delivery also have been sustained from Soviet times: These are ports in Ventspils, Butinge and Tallinn. Therefore, Estonia, Latvia and Lithuania play a significant role not only in consuming, but also in distribution of Russian energy fuels extracting transaction fees. So, the overall EU dependence on the Russia's energy supplies from the one hand and the need of Baltic states to import energy fuels from their closer hydrocarbon-rich neighbor creates a tension that could jeopardize the energy security of Estonia, Latvia and Lithuania.