• Natural gas supplies of the EU come from various EU Members and, more and more, from neighbour countries. Russia is the most important one. Nevertheless, its importance should not be over estimated for several reasons. The European Union imports gas from other countries (Norway, Algeria, and Nigeria). Russia is the first supplier for only half of the Member States (Central Europe, Germany, Greece, Finland, etc.) which are often small or medium countries on the demographic and economic point of view. The other Members States can rely on their own reserves (Denmark, Netherlands) or on other suppliers such as Algeria and Norway (Spain, France, Belgium).
References: Clarisse Didelon, Claude Grasland, Yann Richard, Atlas de l’Europe dans le monde, La Documentation française, 2009. See part « Réseaux », le chapter 14 « flux énergétiques ».