Ukraine added 1.608 billion cubic meters (bcm) of gas to underground storage in May 2017, according to operational data from Ukrtransgaz.

Inventories increased by 24%, to 10.043 bcm as of the end of May, up from 8.100 bcm on March 22, when the heating season ended.

The total was 9.6% more than the 9.163 bcm in storage as of May 31, 2016, but 1.5% less than 10.201 bcm at the end of May 2015.

As reported, Ukraine withdrew 8.391 bcm of gas from storage in 2016, 2 bcm more gas than the 6.389 bcm it injected.

Ukrtransgaz, a wholly owned subsidiary of Naftogaz Ukrainy, operates the country's gas pipelines and 12 underground gas storage facilities with a total capacity of 31 bcm.