This paper presents an overview of the liquefied natural gas (LNG) facilities development in the Baltic Sea. The value of the paper lies in its seek to demonstrate how the process of interaction between the shipping and energy networks unfolds through infrastructural developments of ports. The analysis is based on mapping, cartographic and spatial contextual methods. The mapping of gas supply networks, LNG facilities and traffic patterns establish the originality of this research. It shows that factors motivating the development of LNG terminals in the Baltic ports come from areas of energy and maritime policy. Moreover, in future, the emerging LNG infrastructure may have an effect on port competition in the Baltic Sea Region.