In numerous definitions of energy security, an approach, which emphasises the importance of continuity of supply dominates. It takes into account the need for diversification and signals the necessity to protect the environment and keep energy costs under control. Noticeably, energy security is not only an issue of the state in strategic dimension, but it also embraces the management issues that can be comprehensively described through a classical, multi-level management approach using: strategic and operational levels. Furthermore, security in the dimension of needs is a response to threats. Therefore, the taxonomy of threats concerning the energy sector facilities may be useful in defining energy security in terms of management. This arti...