The main idea of the book refers to energy scenario which is the main concern of the globe. Agriculture as a main sector in the country''s economic, produces some kinds of energy sources like foods, feeds and fodders. However, the energy is degraded through the production processes. The content of the book comprises the energy auditing and optimization in paddy and wheat fields as the more demanded and strategic crops. During the assessing of the energy use pattern, different sources of used energy and consumption pattern for different field operations have been pinpointed. The main objective was to introduce the Data Envelopment Analysis (DEA) as a method for optimizing the energy in agricultural production systems. The subject of the book can be extended to other regions, even to different economic sectors.