Gas and oil reserves

Gazprom holds the world’s largest natural gas reserves, with a share in the global and Russian reserves amounting to 16 and 70 per cent respectively. As of December 31, 2020, the Group’s domestic A+B1+C1 hydrocarbon reserves (under Russian standards) amounted to 33,574.5 billion cubic meters of gas, 1,494.4 million tons of gas condensate, and 2,023.8 million tons of oil.

In order to replenish its resource base, the Gazprom Group carries out geological exploration in Russia and abroad, as well as continuously monitors new projects and assets eligible for purchase.

Reserves of associated companies and joint ventures

In 2020, the A+B1+C1 hydrocarbon reserves of associated companies and joint ventures within the share of the Gazprom Group stood at 1,046.2 billion cubic meters of natural and associated gas, 110.1 million tons of gas condensate, and 595.7 million tons of oil.

Reserves audit

The PRMS-based audit of the Gazprom Group’s hydrocarbon reserves carried out by DeGolyer and MacNaughton showed that, as of late 2020, the Group’s proven and probable hydrocarbon reserves included 24,521.0 billion cubic meters of gas, 1,110.2 million tons of gas condensate, and 1,403.2 million tons of oil.

The international audit covered 92.0 per cent of gas, 94.7 per cent of condensate, and 95.8 per cent of oil in the Group’s total reserves in the A+B1+C1 categories.

Gazprom Group’s reserves under PRMS standards

 

As of December 31, 2017 As of December 31, 2018 As of December 31, 2019 As of December 31, 2020
Natural gas, billion cubic meters 24,146.6 24,255.1 24,395.5 24,521.0
Gas condensate, million tons 1,105.7 1,090.2 1,063.2 1,110.2
Oil, million tons 1,360.0 1,335.4 1,374.8 1,403.2

Total, billion barrels of oil equivalent

175.7 176.1 177.1 178.5

Geological exploration

The main objectives of geological exploration performed by the Gazprom Group are to replenish the extracted hydrocarbons with commercial reserves and to prepare the feedstock base in promising regions. The growth rates of the Company’s natural gas reserves have been surpassing the production rates since 2005.

Ekaterina drilling rig performing geological exploration in Yamal Peninsula
Ekaterina drilling rig performing geological exploration in Yamal Peninsula

Ekaterina drilling rig performing geological exploration in Yamal Peninsula

In 2020, the reserves replacement ratio for natural gas was 1.1.

Gazprom operates in almost all of Russia’s oil- and gas-bearing regions. In 2020, the Group allocated a total of RUB 90 billion for the geological exploration of domestic hydrocarbons.

Geological exploration on Arctic shelf
Geological exploration on Arctic shelf

Geological exploration on Arctic shelf

Throughout 2020, the additions in A+B1+C1 hydrocarbon reserves as a result of geological exploration in Russia amounted to:

  • 486.3 billion cubic meters of natural gas;
  • 17.2 million tons of gas condensate;
  • 9.5 million tons of oil.

2020 saw the discovery of three new fields: 75 Years of Victory, a gas field on the Russian continental shelf in the Kara Sea; the Solkhem oil field in the Khanty-Mansi Autonomous Area – Yugra; and the Tsentralno-Uranskoye oil field in the Orenburg Region, as well as 22 new deposits at the fields discovered earlier in the Yamal-Nenets Autonomous Area, the Khanty-Mansi Autonomous Area – Yugra, the Russian continental shelf in the Kara Sea, and the Tomsk Region.

 

Key figures of Gazprom Group’s hydrocarbon exploration (excluding companies investments wherein are classified as joint operations)
  Year ended December 31
2016 2017 2018 2019 2020
Exploratory drilling, thousand meters 111.6 85.9 157.6 201.7 162.0

Number of constructed exploratory wells

40 36 25 41 34

including producing wells

34 31 20 39 27

2D seismic survey, thousand linear kilometers

1.1 5.7 15.0

3D seismic survey, thousand square kilometers

20.6 18.7 9.5 7.9 5.9

Hydrocarbon development beyond Russia

In line with the existing contractual obligations, the Gazprom Group continues to implement its ongoing projects in foreign countries. In 2020, the Group carried out geological and geophysical exploration in the CIS, Europe, Southeast Asia, Africa, Middle East, and South America.

The amount of funds invested in geological exploration projects abroad totaled RUB 3.1 billion in 2020.

Key figures of Gazprom Group’s hydrocarbon exploration abroad
  As of December 31
2016 2017 2018 2019 2020
Exploratory drilling, thousand meters 9.7 18.4 21.9 18.6 8.8
Number of constructed exploratory wells 8 8 10 7 4
including producing wells 7 5 9 7 4
2D seismic survey, thousand linear kilometers 1.5
3D seismic survey, thousand square kilometers 0.8 1.2 1.1 0.7

Within the scope of the geological exploration projects in which the Gazprom Group serves as the operator, the bulk of exploratory works was performed in Serbia.

Exploratory drilling in Serbia
Exploratory drilling in Serbia

Exploratory drilling in Serbia

Mineral resource base development program

The resource base development strategy of the Gazprom Group aims to maintain the balance between reserves growth and hydrocarbon production, as well as to ensure enhanced resource replenishment in the future.

In June 2011, the Gazprom Management Committee approved the Gas Industry Mineral Resource Base (MRB) Development Program until 2035. The Program envisages the enhanced replenishment of the mineral resource base with due consideration of the changes in the reserve structure and the shift of the gas production centers to the new regions: the Yamal Peninsula, Eastern Siberia, the Far East, and the Russian continental shelf. The Program will provide for the addition of about 20 billion tons of fuel equivalent between 2011 and 2035.

The document places great emphasis on research, development and design activities, which will help dramatically improve the efficiency of prospecting and exploration at new hydrocarbon fields and deposits.