Natural Gas Stocks Injection in Poland decreased to 16.28 GWh/d on Thursday April 2 from 28.91 in the previous day. Natural Gas Stocks Injection in Poland averaged 51.49 GWh/d from 2011 until 2026, reaching an all time high of 1852.66 GWh/d in September of 2014 and a record low of 0.00 GWh/d in January of 2011.