KIEV, May 30 – Natural gas stocks in underground storage facilities grew by 26% or 2.7 billion cubic meters (bcm), to 13 bcm from April 16 to May 25, Ukrtransgaz, a subsidiary of Naftogaz Ukrayiny, reported.

The company said that natural gas pumping to underground storage facilities is in line with the schedule to provide stable operation in the 2011-2012 autumn and winter period.