This research is concentrated on the regional ivestigation over the energy field in Bulgaria aiming to present and evaluate the current situation in the country as well as to provide some comparison and conclusions. Energy sector is very important and key for each country’s economy and overall stability. Bulgarian limited energy resources is major factor for the oppeness of the country behind its borders. Collaboration in the energy sector can be found among other Balkan countries and countries from Eastern Europe. That is why, Bulgaria deals with a lot of current challenges and future perspectives.