What was sold with NIS, how much the use of domestic reserves has been accelerated in the last five years? Who, how and why in direct negotiations, away from the public eye, agreed to the documents that was coming out to meet the Russian side? As revealed by Insider, the sale of the Serbian Oil Industry for 400 million euros with an obligation to invest 500 million euros meant, among other things, the sale of the right to use domestic oil and gas reserves.