Natural Gas Stocks Injection in Spain increased to 96.07 GWh/d on Sunday May 24 from 76.29 in the previous day. Natural Gas Stocks Injection in Spain averaged 26.39 GWh/d from 2011 until 2026, reaching an all time high of 142.57 GWh/d in April of 2026 and a record low of 0.00 GWh/d in January of 2011.