Natural Gas Stocks Injection in Slovakia decreased to 93.94 GWh/d on Monday May 4 from 94.64 in the previous day. Natural Gas Stocks Injection in Slovakia averaged 86.77 GWh/d from 2011 until 2026, reaching an all time high of 378.61 GWh/d in May of 2019 and a record low of 0.00 GWh/d in January of 2011.