Ukraine currently needs 10 billion cubic meters of gas, and half of that volume could be purchased from Russia.
Ukraine's Energy Challenge
Ukrinform: Kobolev says Naftogaz can purchase almost half of needed gas from Russia
A picture taken at the 'East Poltava' gas booster compressor station not far from Ukrainian city of Poltava shows a manometer of the gas pressure and a valve on June 27, 2014.
