The company was especially successful in Croatia, where it has a 10% market share in the annual natural gas consumption, according to a press release from Geoplin.

The statement says last year's profit is estimated to have increased by 15% on the year before and surpassed plans by 20%, but no concrete figures were given.

The growth is attributed mainly to expansion to foreign markets. Apart from Croatia and Slovenia, Geoplin is also present in Italy, Hungary and Austria.

An important milestone in Croatia operations was entering a deal to supply natural gas to Vetropack, a leading European packaging glass manufacturer and one of the biggest natural gas consumers in Croatia.

Geoplin plans to increase sales at home and abroad this year to raise revenue by 7%, with the ambition to increase foreign gas sales revenue by 130% on the comparable estimates for 2013, the release reads.