How much gas does Europe buy from Russia? Most estimates peg the annual amount to about 155 billion cubic meters. There are 35.3 cubic feet in a cubic meter, and there are 365 days in a year, thus Europe has a 15 bcf/d gap to fill by turning off the Russian spigot [(155 x 35.3)/365 = 15 bcf/d].
https://doomberg.substack.com/p/measure-twice-sizing-europes-natural?s=r