Article investigates the issue of terms of trade in energy products. The goal of this paper is to check how the terms of trade in energy fluctuate. The analysis is carried out on the example of Poland as a country which offers an interesting energy imports and exports structure. The time horizon covers the period from 2005–2015 and is extended to give the broader picture of the phenomenon wherever possible. In the research, the author uses the barter terms of trade concept. The paper has been organized in four sections. The study opens with introductory remarks presenting Polish energy situation, which is followed by a description of the terms of trade concept on the grounds of international economics. The results of the research are discussed in section three which ends with a summary and conclusions. The last part includes an additional description of study constraints and suggestions the next research steps. The statistical data used in the paper comes from national databases of the Polish Central Statistical Office and international sources such as the Organisation for Economic Cooperation and Development. Additional information on energy prices was derived from recognized branch sources such as BP Statistical Review of World Energy.