Ukraine's state-run energy firm Naftogaz has lodged a case with the Stockholm arbitration tribunal to review a 2009 gas transit contract with Russia's Gazprom, a Naftogaz official said on Oct. 14, days before the countries' presidents meet.
Ukraine's Energy Challenge
Reuters: Ukraine lodges case with Stockholm tribunal over Russian gas transit
Russia's gas giant Gazprom headquarters rises in Moscow, on June 28, 2013.