"Energy security is becoming an issue of increasing importance to the United States and its European allies, as some energy producers are showing a tendency to use oil and gas for political leverage. Although most European allies believe that a market solution exists to ensure security of energy supplies, NATO has begun to discuss the issue as an allied concern. This report will be updated periodically. See also CRS Report RL33636, 'The European Union's Energy Security Challenges', by Vincent Morelli."
CRS Report for Congress, RS22409