KIEV: An employee inspects a gas installation during a training exercise for handling emergencies at a gas-pumping station on the gas pipeline in the small town Boyarka on April 22, 2015 in the Kyiv Oblast.
Ukraine in May 2015 imported natural gas from Europe at an average price of $278.7 per 1,000 cubic meters, which is 0.1 percent less than in April 2015 ($278.9).