On 30 April 2018 NIS reported having drilled appraisal well Idos X-7 in the Severni Banat licence during Q1 2018. No additional details are yet available. The permit is situated in northeastern Serbia, in the Vojvodina province.  Idos X-7 is the third well drilled to appraise the Idos X-4 discovery made in late 2016. The first appraisal well â Idos X-5 -Â  was completed in Q1 2017 with oil. The second appraisal well â Idos X-6 - was drilled in late 2017. Discovery well Idos X-4 tested oil at mean rates of 175 b/d from a Neogene reservoir, at depths between 2,268 m and 2,287 m. Commercial reserves are estimates at 3.1 MMbbl of oil.  Interest in the licence is held solely by NIS which is majority owned by Gazprom Neft (56.15%), the oil arm of Russiaâs state-owned natural gas monopoly Gazprom.
Serbia (Banat Sub-basin (Pannonian B.)) Idos X-4