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Reserves and resources

In 2010, Rosneft confirmed its status as the world’s largest publicly traded oil company by oil and gas condensate reserves.

According to an audit by DeGolyer & MacNaughton, Rosneft’s proved reserves by PRMS classification as of December 31, 2010 were 18,110 mln barrels of oil and 791 bln cubic meters of gas. The proved hydrocarbon reserve replacement ratio in 2010 was 106%. As of the end of 2010, Rosneft had reserve life of 25 years, of which 21 years for oil and 67 years for gas.

Company reserves are located both in traditional oil & gas producing regions (southern part of European Russia, Western Siberia, Central Russia) and in promising new regions (Eastern Siberia, the Far East, Timan-Pechora). About 75% of the Company’s proved oil reserves are concentrated in Western Siberia, mainly in Khanty-Mansiysk Autonomous District, and about 11% are in Eastern Siberia. Western Siberia also contains about 84% of the Company’s proved gas reserves, which are concentrated mainly in the Yamal-Nenets Autonomous District. Most of Rosneft’s hydrocarbon reserves are conventional.

The Company also has large probable and possible reserves, which provide an excellent foundation for further growth of proved reserves. According to DeGolyer & MacNaughton, probable reserves of Rosneft by PRMS classification at the end of 2010 were 9,978 mln barrels of oil and 435 bln cubic meters of gas, while possible reserves were 8,256 mln barrels of oil and 379 bln cubic meters of gas.

Proved reserves of oil under SEC classification were 13,747 mln barrels and gas reserves were 247 bln cubic meters.

Rosneft’s hydrocarbon reserves and resources audited by DeGolyer & MacNaughton, as of December 31

  2008 2009 2010
 
Proved hydrocarbon reserves, mln boe 22,307 22,858 22,764
Proved oil and gas condensate reserves, mln bbl 17,694 18,058 18,110
Proved gas reserves, bcm 784 816 791
Probable hydrocarbon reserves, mln boe 14,003 14,065 12,539
Probable oil and gas condensate reserves, mln bbl 10,854 11,013 9,978
Probable gas reserves, bcm 535 518 435
Possible hydrocarbon reserves, mln boe 12,645 11,069 10,484
Possible oil and gas condensate reserves, mln bbl 9,675 8,420 8,256
Possible gas reserves, bcm 505 450 379
Gross prospective hydrocarbon resources, mln boe 52,750 47,356 50,561
Gross prospective oil and gas condensate resources, mln bbl 37,095 37,443 40,534
Gross prospective gas resources, bcm 2,660 1,684 1,703

SEC (life-of-field)

  2008 2009 2010
 
Proved hydrocarbon reserves, mln boe 14,448 15,146 15,199
Proved oil and gas condensate reserves, mln bbl 13,275 13,931 13,747
Proved gas reserves, bcm 199 207 247

 



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