I. Introduction This blogpost is going to discuss the implications of the EEZs of Croatia and Italy in the Adriatic with regard to the interests of and open issues with third States, hydrocarbon exploration and exploitation, maritime transport, fishing, and opportunities for offshore renewable energies. The Adriatic Sea, a sub-sea of the Mediterranean, as a semi-enclosed sea previously accounted for three riparian States: Albania, Italy, and Yugoslavia. The dissolution of the Socialist Federal Republic of Yugoslavia (SFRY) in the early 1990s has led to the establishment of four new littoral States: Croatia, Bosnia-Herzegovina, Montenegro, and Slovenia. Generally, the Adriatic’s eco-system is particularly vulnerable as its waters are shallow and the exchange or renewal of waters with the Ionian Sea through the relatively narrow Strait of Otranto is limited (Vidas 2013: 353; Blake and Topalović 1996: 4; see also Gačić et al 2001).