Effective 19 June 2020, Nafta a.s. was awarded the contract Viedenska panva-sever in the southwestern part of the country. Nafta is the sole operator of the tract, valid until 28 July 2024.  The 800 sq km permit is located some 25 km north of the capital city of Bratislava, along the border with Austria and the Czech Republic. In a geological sense, the area falls within the Vienna Basin.  The Viedenska panva-sever block replaced previously existing areas Bazantnica and Gbely, relinquished in March 2020.
(Vienna b.) Viedenska panva-sever block was awarded to Nafta a.s (100%). Nafta is the sole operator of the tract, valid until 28 July 2024. The 800 sq km permit is located along the border with Austria and the Czech Republic. The Viedenska panva-sever block replaced previously existing areas Bazantnica and Gbely, relinquished in March 2020. 