The European Union expects Russia to keep gas flowing through Ukraine so long as diplomatic channels are open, the European Commission president said Wednesday. European Commission José Manuel Barroso sent a letter Wednesday to Russian President Vladimir Putin. In it, he said it was important that all parties to a row over gas supplies through Ukraine remain engaged. “As long as the trilateral talks are on-going, gas flows should not be interrupted,” the letter stated. “It therefore continues to be Gazprom’s responsibility to ensure the deliveries of the required volumes as agreed in the supply contracts with European companies.” Gazprom in April sent its Ukrainian counterpart Naftogaz a bill for more than $11 billion for taking on less gas than contracted in 2013. Moscow has called on Kiev to pay in advance for natural gas in order to avoid a similar row in 2009 that […]