The natural gas market in the Republic of Croatia has undergone significant changes starting from the implementation of the First Energy Package to the full liberalization of the market, which begins on April 1, 2021. During this period, there was a significant reform of the gas market in such a way that gas market participants were clearly defined their rights and obligations. The company Plinacro d.o.o. was founded for gas transport, and the distribution and supply of natural gas became energy activities. Natural gas prices have a declining trend in recent years, and at the end of 2019. there was an increase in gas prices for households who also have the right to freely choose suppliers according to market conditions or they can stay as customers in the public service. The process of consolidating distribution systems has been initiated in order to optimize the costs of maintaining the gas infrastructure, which ensures a reliable and secure supply to end customers. An important event for the Croatian gas market took place in January 1, 2021. by opening an LNG terminal on Krk, which gave Croatia a new supply route and the possibility of diversifying supply and reducing gas prices. The significant role of natural gas in the energy mix of the Republic of Croatia was further confirmed in early 2020. when Croatia adopted the “Energy Development Strategy of the Republic of Croatia until 2030 with a view to 2050” in which natural gas is recognized as an energy source that can contribute to decarbonisation through carbon capture and storage technologies. The year 2020. was a turning point for natural gas because not only the European Union, but also all the world's leading economies have confirmed their orientation towards decarbonisation. Although natural gas is the fossil fuel with the lowest greenhouse gas emissions, the ambitious decarbonisation agenda by 2050. does not leave much room for fossil fuels. Therefore, this paper discusses the synergy of natural gas and hydrogen, as well as CCS and CCUS technologies that can ensure decarbonization of natural gas. Croatia is recognized as one of the eight EU countries that has the potential to store carbon dioxide through EOR projects, and the extensive gas infrastructure enables transport from the place of accommodation to the place of carbon dioxide injection. Although the situation is changing rapidly, green hydrogen production technology is still not a cost-competitive to blue hydrogen production technology, which, along with decreasing natural gas prices due to global pandemics, has further strengthened the position of natural gas in the energy mix. Blue hydrogen can be mixed with natural gas in certain percentages and transported by gas pipelines, but additional pipe protection measures are required to ensure the safety of the gas system. Significant funds have been invested in gas infrastructure to ensure the diversification of supply routes, and that fact can be considered as a indicator that natural gas will have a future in Croatia after 2030. Natural gas should be a complementary solution to renewable sources in order to achieve climate neutrality of the Republic of Croatia.