Europe relies on Russian gas for around 40% of its supply, with some member states more dependent on those fuel supplies than others.
Europe's opposition to Vladimir Putin's invasion of Ukraine earlier this year prompted wholesale gas prices to skyrocket, with households in the Netherlands seeing hikes of 167%, 122% in Austria and 118% in Italy, according to the BBC.
The Russian leader then cut off gas supplies to Poland, Bulgaria, Finland, Denmark and Netherlands after they failed to pay for the fuel in rubles.
Then, concerns mounted that 10 days of scheduled maintenance to the Nord Stream 1 pipeline, Russia's biggest, would lead to a reduced supply or, even worse, would not be restarted.