Energy is a fundamental factor for economic development. Although in recent years there is a development in studies on an energy economics they are focused on specific energy sources. In this study natural gas, electricity and oil consumption which are the energy sources that the greatest market share of world and Turkey are investigating. In this investigation multivariate linear regression model is used. MVR model is a system of linear regression equations having the same set of independent variables. In this model within-equation, linear restrictions are testable on an equation-by-equation basis using a standard F test. The aim of the study is estimating demand of these three energy sources which are mentioned above. For this purpose, th...