Under the Russian classification of reserves:
- Gazprom’s natural gas reserves 33.1 tcm
- gas condensate reserves 1.3 bln t
- oil reserves 1.6 bln t





Gazprom possesses the world’s richest natural gas resources, with its share in the overall global and Russian proven gas reserves accounting for some 17% and 70%, respectively.
Gazprom Group’s А+В+С1 gas reserves totaled 33.1 trillion m3 as of December 31, 2008. Due to a bigger scope of geological exploration and obtained upstream licenses, gas reserves grew by 11.2% versus the previous year.
Gazprom annually audits new fields and adjusts the reserve volume and value of deposits audited earlier, taking account of the reserve dynamics (accumulated production and growth) as well as changes in gas production costs, taxes and prices.
As of December 31, 2008 an independent audit was performed under the PRMS international standards on Gazprom’s A+B+C1 88% of natural gas, 85% of gas condensate and 92% of oil reserves.
According to DeGolyer & MacNaughton’s appraisal, Gazprom Group’s proven and probable hydrocarbon reserves are estimated at 27.3 billion t of fuel equivalent and priced at USD 230.1 billion.
A major outcome is determined by the fact that in the past three years the replenishment of Gazprom’s gas reserves has been exceeding the level of its gas production. In 2008, thanks to geological exploration operations the Company accrued 581.6 billion m3 of gas, which is 5.5% up on its production level. Only in the past three years Gazprom’s subsidiaries discovered seven new hydrocarbon fields: Chikanskoye in the Irkutsk Oblast, Akobinskoye and Zapadno-Rozhdestvenskoye in the Orenburg Oblast, Karmalinovskoye in the Stavropol Krai, Kamovskoye in Evenkia, Zapadno-Pestsovoye in YaNAO and small sized Valyntoyskoye in Western Siberia. 28 deposits were found in the fields discovered earlier and the explored reserves were built up in the Shtokman field. Furthermore, in 2008 OOO TsentrCaspneftegaz (50% owned by OAO Gazprom) discovered a new field – Tsentralnoye – in the Caspian Sea. The C1+C2 hydrocarbon reserves of the field – 169.2 million t of fuel equivalent.
In 2008, pursuant to the directives of the Russian Federation Government, OAO Gazprom obtained 10 exploration and development licenses for subsurface blocks (fields) of federal significance on the Yamal and Gydan Peninsulas, in the continental shelf of the Sea of Okhotsk and in the Republic of Sakha (Yakutia), with their A+B+C1 reserves estimated at 3.3 trillion m3 of natural gas and 143.2 million t of liquid hydrocarbons as of December 31, 2008.
Thus, as of year-end 2008 Gazprom Group held 262 licenses to search for, explore and produce hydrocarbons in Russia and 19 similar licenses abroad.
Gazprom’s strategic challenge in relation to its resource base is to maintain a parity between the reserves growth and production as well as to provide for the expanded reserves replenishment in the long run.
A fundamental document determining the OAO Gazprom mineral resource base replenishment strategy is the Program for the Gas Industry’s Mineral Resource Base Development up to 2030. The Program aims at securing stable performance of the Company and expanded replenishment of hydrocarbons.
Under the Program, the period till 2030 is planned to see an at least 23.5 trillion m3 of gas increase through geological exploration, with liquid hydrocarbon reserves to grow 3.4 billion t.
Up to 2010 the major prospecting targets will be the West Siberian, Timan-Pechora and Pre-Caspian regions, with more intensive work to be performed in the Ob and Taz Bays of the Kara Sea and the Pechora Sea offshore.
In 2011-2020 the Arctic offshore, Sea of Okhotsk, Krasnoyarsk Krai, Irkutsk Oblast, Sakha (Yakutia) and Sakhalin Island offshore will also be the principal exploration areas contributing to the mineral resource base replenishment.
In a longer perspective a priority will still be given to the Arctic regions of Western Siberia, Eastern Siberia and the Arctic offshore. There are also plans to launch prospecting activities in new, so far unexplored areas of the Siberian and Far Eastern Federal Districts (northern Evenkia, Sakha (Yakutia), Chukotka, Kamchatka).