A Ministry of Energy or Department of Energy is a government department in some countries that typically oversees the production of fuel and electricity. The person in charge of such a department is usually known as a Minister of Energy or Minister for Energy.

Ministry of Energy and Water (Afghanistan)
Ministry of Energy and Mining (Algeria)
Ministry of Energy Infrastructures and Natural Resources (Armenia)
Australia :
Department of Climate Change and Energy Efficiency (superseded 2013)
Department of the Environment and Energy (from 2016)
Ministry of Energy (Azerbaijan)
Ministry of Energy, Science & Technology and Public Utilities (Belize)
Ministry of Mines and Energy (Brazil)
Ministry of Energy (Energy and Manpower) and Industry (Brunei)
Ministry of Economy, Energy and Tourism (Bulgaria)
Burundi Ministry of Energy and Mines
Ministry of Mines and Energy (Cambodia)
Canada :
Natural Resources Canada
Alberta Energy
Department of Energy and Mines (New Brunswick)
Ministry of Energy (Ontario)
Ministry of Natural Resources and Wildlife (Quebec)
Ministry of Mines and Energy (Colombia)
Ministry of Climate, Energy and Building (Denmark)
Directorate-General for Energy (European Union)
Ministry of Electricity and Renewable Energy (Egypt)
Ministry of Energy of Georgia
Federal Ministry of Economic Affairs and Energy (Germany)
Ministry of Energy and Petroleum (Ghana)
Ministry of Environment and Energy (Greece)
Ministry of Industry, Energy and Tourism (Iceland)
India :
Ministry of New and Renewable Energy
Ministry of Petroleum and Natural Gas
Ministry of Energy and Mineral Resources (Indonesia)
Ministry of Energy (Iran) (Persian: وزارت نیرو‎)
Ministry of Energy (Lithuania) (Lithuanian: Lietuvos Respublikos energetikos ministerija)
Ministry of Energy, Green Technology and Water (Malaysia)
Secretariat of Energy (Mexico)
Ministry of Energy (Myanmar)
Ministry of Energy (Nepal)
Ministry of Petroleum and Energy (Norway)
Ministry of Water and Power (Pakistan)
Ministry of Energy and Mines (Peru)
Department of Energy (Philippines)
Ministry of Energy (Poland)
Ministry of Energy, Industry and Mineral Resources (Saudi Arabia)
Ministry of Mining and Energy (Serbia)
Ministry of Energy & Minerals (Somaliland)
Department of Energy (South Africa)
Ministry of Energy and Electrification (Soviet Union)
Ministry of Power and Renewable Energy (Sri Lanka)
Ministry of the Environment and Energy (Sweden)
Ministry of Energy and Minerals (Tanzania)
Ministry of Energy (Thailand) (Thai: กระทรวงพลังงาน)
Ministry of Mines and Energy (Togo)
Ministry of Energy (Turkmenistan)
Ministry of Energy and Mineral Development (Uganda)
Ministry of Energy and Coal Mining (Ukraine) (Ukrainian: Міністерство палива та енергетики України)
United Kingdom :
Department of Energy (United Kingdom) (superseded 1994)
Department of Energy and Climate Change (superseded 2016)
Department for Business, Energy and Industrial Strategy (from 2016)
United States Department of Energy
Ministry of Energy and Power Development (Zimbabwe)Ministers for Energy:

Minister for the Environment and Energy (Australia)
Minister of Energy (Belgium)
Minister of Energy, Mines and Resources (Canada)
List of Ministers for Energy of Luxembourg
Minister for Energy (Sweden)
Minister for Energy (Western Australia)