Gas prices in Europe hit a record high in the past few weeks, sparking concern for the cold months ahead.
Gas that flows into Europe from outside pipelines is stored in regional hubs and then distributed across the continent.
However, some experts fear there won’t be enough gas going around come winter.
Fatih Birol, executive director of the Paris-based International Energy Agency, has said Russia could supply an additional 15 percent of gas to meet Europe’s demand.
Mr Birol has also warned the transition towards green energy is far too slow and has contributed to the energy crunch.