State company Nadra Ukrainy on Wednesday named Yuzgas as the winner of the tender.
The Yuzivska Field of 7,800 square kilometers could, according to preliminary estimates, yield about 8-10 billion cubic metres of gas per year.
It is located in the Kharkiv and Donetsk regions in areas bordering territory seized by pro-Russian separatists. Since 2014 the conflict there has claimed more than 9,400 lives.
Shale