This paper focuses on the shift in Turkey's energy policy and analyzes the development of energy mix, investments plans and pipelines. The paper indicates how energy security, which was originally conceived as an input of development, became a strategic tool for Turkey's regional and foreign relations. It elaborates Turkey's actual energy strategy, which has recently been introduced by the state ... [Show full abstract] authorities. The article addresses investment opportunities and restraints with a particular focus on pipeline politics. It ends by identifying Turkey's assumptions about the future. The conclusion points out the consistencies and contradictions between Turkey's energy security and its aspiration to benefit from pipeline politics.