The Prirodni Plin gas supply company, a member of INA Group, has signed a contract with Italy's ENI under which ENI will start supplying it with natural gas on 1 January 2011, INA said in a statement on Thursday.
The contract was signed for a period of three years, with annual deliveries amounting to 750 million cubic metres of natural gas.
The existing contract on gas supply between Prirodni Plin and Russia's Gazprom on the import of Russian gas expires at the end of this year.
Prirodni Plin this year for the first time invited bids for the provision of natural gas.
According to unofficial media reports, the bidders were Gazprom, Germany's E-on and ENI.
The annual consumption of natural gas in Croatia is around three billion cubic metres, of which 60-65 percent is produced in the country, and 35-40 percent is imported.