Gazprom's reserves growth in 2021 was 523 billion cubic meters, which is 1.6% higher than the production volume of 514.8 billion cubic meters. The main result was obtained due to the resource base of the Yamal gas production center, which includes the Leningradskoye field on the Priyamalsky shelf of the Kara Sea, as well as the Tambeyskoye field onshore on the Yamal Peninsula.