Natural Gas Stocks Injection in Croatia remained unchanged at 0 GWh/d on Thursday April 2. Natural Gas Stocks Injection in Croatia averaged 10.69 GWh/d from 2014 until 2026, reaching an all time high of 44.26 GWh/d in June of 2017 and a record low of 0.00 GWh/d in April of 2014.