The energy strategy of European Union is an item of utmost political concern, since it tightly intertwined with controversial commercial relationship with Russia and the US.In spite of the fact that energy had always played a leading role in the European Union, it was not included or since the beginning of the European Community within the common policies in the same.Things began to change in the following twenty years, when oil became more and more important for the world economy, replacing coal as the main energy source.This ebook provides a general legal basis on the subject, focusing on the matters related to the ownership and management of the network, which is a key topic when delaing with natural monopolies, such as electricity.This work is helpful for understanding the background fo present-day discussion about Europe Energy Strategy ant the antitrust aspects of the ongoing mergers in the European market of energy equipment