Photo from UNIAN NJSC Naftogaz of Ukraine&nbsp;CEO Andriy Kobolyev has said Ukraine&#39;s revenues from gas transit exceeded its import costs by $500 million in 2018. &quot;When Russians talk about restoring the &#39;balance of interests,&#39; or &#39;zero scenario,&#39; it is useful to keep this picture before our eyes. In fact, Russians are interested in returning to the past, when Ukraine was in complete financial and political dependence. But times have changed. I hope &ndash; irrevocably,&quot; he wrote on Facebook. He recalled gas import costs at the end of 2014 exceeded transit revenues by $4.7 billion. Read also&quot;Actual blackmail&quot;: Naftogaz comments on Russia&#39;s position in gas talks As UNIAN reported earlier, following the tripartite Ukraine-EU-Russia talks that were held in Brussels on January 21, commenting on the proposal of the Russian side to extend the existing contracts, Naftogaz CEO Andriy Kobolyev said that the Ukrainian side was ready to consider future contracts if they fully complied with European energy legislation implemented in Ukraine. According to him, only a contract based on European principles would fully secure Ukraine&#39;s interests and prevent Russia from non-market and non-competitive actions it had repeatedly demonstrated in the past. Kobolyev also says that negotiations on future contracts with Gazprom in no way prevent the implementation of the Stockholm arbitration awards and encourage Gazprom to fully comply with them.