Gas and oil reserves

Gazprom holds the world’s largest natural gas reserves, with a share in the global and Russian reserves amounting to 17 and 72 per cent respectively. As of December 31, 2016, the Group’s domestic A+B1+C1 hydrocarbon reserves (under Russian standards) amounted to 36,443.9 billion cubic meters of gas, 1,534.9 million tons of gas condensate, and 2,078.5 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.

Gazprom Group’s explored hydrocarbon reserves in Russian regions

Gazprom Group’s explored hydrocarbon reserves in Russian regions

Reserves of affiliates

In 2016, the A+B1+C1 reserves of affiliates within the share of the Gazprom Group stood at 999.1 billion cubic meters of gas, 104.5 million tons of gas condensate, and 571.5 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 2015, the Group’s proven and probable hydrocarbon reserves included 23,855.1 billion cubic meters of gas, 1,018.9 million tons of gas condensate, and 1,378.7 million tons of oil.

The audit covered 94 per cent of gas, 92.2 per cent of condensate, and 92.4 per cent of oil reserves in the A+B+C1 categories.

Gazprom Group’s reserves under PRMS standards

 

As of 31 December, 2015 As of 31 December, 2016

Natural gas, billion cubic meters

23,705.0

23,855.1

Gas condensate, million tons

933.3

1,018.9

Oil, million tons

1,355.4

1,378.7

Total, billion barrels of oil equivalent

157.2

173,260.1

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.

In 2016, the reserves replacement ratio was 1.10 for gas and 0.98 for gas condensate and oil.

Gazprom operates in almost all of Russia’s oil- and gas-bearing regions. In 2016, the Group allocated a total of RUB 179 billion for the geological exploration of domestic hydrocarbons.

Throughout 2016, the additions in hydrocarbon reserves as a result of geological exploration in Russia amounted to:

  • 457.4 billion cubic meters of natural gas;
  • 38.0 million tons of gas condensate;
  • 19.3 million tons of oil.

2016 saw the discovery of two oil fields (the Zapadno-Chatylkinskoye field in the Yamal-Nenets Autonomous Area and the Novosamarskoye field in the Orenburg Region) and 15 new deposits within the already known fields in the Yamal-Nenets Autonomous Area, the Khanty-Mansi Autonomous Area – Yugra, and the Tomsk and Orenburg Regions. In addition, two deposits in the Khanty-Mansi Autonomous Area – Yugra and one deposit in the Tomsk Region were discovered by the companies investments wherein are classified as joint operations.

Hydrocarbon exploration by Gazprom Group in Russia

 

For the year ended December 31

 

2012 2013 2014 2015 2016

Exploratory drilling, thousand meters

126.4 146.4 165.4 143.6 111.6

Number of constructed exploratory wells

54 53 41 43 40

including producing wells

46 37 31 38 34

2D seismic survey, thousand linear kilometers

1.9 1.4 6.6 0.3 1.1

3D seismic survey, thousand square kilometers

8.4 13.3 12.6 20.0 20.6
 
Hydrocarbon exploration by Gazprom Group in Russia

Hydrocarbon exploration by Gazprom Group in Russia

Licenses

In 2016, the Gazprom Group’s hydrocarbon reserves increased by the following amounts thanks to geological exploration under licenses:

  • 257.5 billion cubic meters of natural gas;
  • 10.9 million tons of gas condensate;
  • 15.0 million tons of oil.

Hydrocarbon development beyond Russia

In line with the existing contractual obligations, the Gazprom Group continues to implement its ongoing projects in foreign countries. The amount of funds invested in geological exploration projects abroad totaled RUB 12.7 billion in 2016.

Hydrocarbon exploration by Gazprom Group abroad
  As of December 31
  2012 2013 2014 2015 2016
Exploratory drilling, thousand meters 24.0 18.1 17.6 28.3 9.7
Number of constructed exploratory wells 7 4 5 4 8
including producing wells 1 1 4 2 7
2D seismic survey, thousand linear kilometers 0.7 0.4 1.5
3D seismic survey, thousand square kilometers 0.4 1.4 1.7 1.4 0.8

The Gazprom Group is engaged in field prospecting, exploration and development across the CIS, Europe, Southeast Asia, Africa, Middle East, and Latin America.

Within the scope of the geological exploration projects in which the Group serves as the operator, exploratory drilling was performed in Algeria, Vietnam, and Serbia, with 2D and 3D seismic surveys carried out in Kyrgyzstan, Algeria, Iraq (Kurdistan), and Serbia. As a result of exploratory drilling, the Idos-Sever field containing 0.4 million tons of oil was discovered in Serbia.

Drilling rig at Badra field in Iraq

Drilling rig at Badra field in Iraq

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 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.