MOSCOW - Russia's Energy Ministry has not yet received an invitation for a trilateral meeting in Berlin on Sept. 20 to discuss the Ukrainian gas crisis, a spokeswoman said on Sept. 11.
Ukraine's Energy Challenge
Reuters: Russia says unaware of Berlin meeting on Ukraine gas crisis
An employee tightens the valve on a pipeline at the Bilche-Volytsko-Uherske underground gas storage facility, the largest in Europe, not far from the village of Bilche village, in the Lviv region of western Ukraine, on May 21, 2014.