Natural Gas Stocks Inventory in Belgium decreased to 2.23 TWh on Sunday March 15 from 2.24 in the previous day. Natural Gas Stocks Inventory in Belgium averaged 5.20 TWh from 2011 until 2026, reaching an all time high of 9.10 TWh in November of 2023 and a record low of 0.00 TWh in May of 2020.