Many countries seek economic growth by means of more energy use from energy imports. Because such imports entail risk as they are controlled by energy exporters, this research establishes a model for energy resilience estimation in order to understand energy risk. The samples in this study are 27 member countries of the European Union (EU), and we divide them into 8 Baltic Sea region (BSR) countries and 19 non-Baltic Sea region (NBSR) countries. The findings are as follows. (i) During the data period, BSR and NBSR exhibit the phenomenon of energy vulnerability. (ii) BSR presents stronger energy resilience than NBSR. (iii) Denmark and Sweden in BSR and Ireland and Luxembourg in NBSR have the best energy resilience. (iv) Strong energy resilience needs high marginal product of energy, high output efficiency, and low energy dependency growth rate for support.