INA – Industrija nafte d.d. (INA) is a Croatian integrated energy company focused on oil and gas exploration and production, refining, and the wholesale and retail distribution of petroleum products. Headquartered in Zagreb, INA operates the Rijeka Refinery on the Adriatic coast and supplies fuels, LPG, jet fuel, asphalt/bitumen, lubricants, and other petroleum derivatives to domestic and regional markets. The company maintains logistics and storage assets and provides petrochemical feedstocks to industrial customers.
INA holds upstream assets primarily in Croatia and has interests abroad, and it operates a large service-station network across Croatia and neighboring countries. The company is significantly owned by MOL Group alongside the Republic of Croatia. In recent years, INA has invested in refinery modernization and operational efficiency and is developing projects aligned with lower-carbon energy and circular-economy objectives.
