REUTERS CEO of NJSC Naftogaz of Ukraine Andriy Kobolyev says that extending the current gas transit contract with Russia from January 1, 2020, is not interesting. "It&#39;s hard for me to imagine why the new GTS [Gas Transport System] operator, why the Ukrainian side might be interested in extending the old contract. If the Russian side says they want some other conditions, other volumes, then it&#39;s logical for us to take a position, and we take it, that it should be only a new contract, only under European law, only with a new operator," Kobolyev said during the Ukrainian Gas Forum in Kyiv on October 9. Read alsoEurope ready to supply natural gas to Ukraine&#39;s south via Trans-Balkan pipeline He noted that in this regard, it is critical to maintain the trilateral format of the Ukraine-EU-Russia negotiations. The current contract is expiring on December 31, 2019.