As an important production factor, energy is among the most important growth factors in societies. Energy plays an effective role in the political and economic behavior of the governments and their security policies. In addition, the business of the forms of energy has a distinctive role in the global trade and the international financial resources turnover. Energy has transformed from a transnational notion to a global notion. This concept can influence the national security of the countries (including the consumers and suppliers) in the military, cultural, political, and environmental respects. Energy is, in fact, serving the security of the nations as a political instrument.
Following the industrial revolution and the shift from coal consumption to petroleum consumption, the importance of energy increased. Therefore, the supply of energy has been the top priority of the state policies and plans in the past decades. Countries have a strong unbreakable bond with the notion of energy security, and in the 21st century we are challenged by a new energy paradigm. Hence, energy security is the main geopolitical dispute in this century. This notion is focused on reducing the geopolitical, economic, and environmental threats and diminishing the risks to the international energy markets.