Slavneft’s audited proved crude oil reserves, which were calculated under the SEC (Securities and Exchange Commission) LOF (life of field) methodology, made 1,797.4 mln bbl as of December 31, 2014. The Company’s proved commercial oil reserves increased by 150.4 mln bbl, or by 9.1% vs. 2013. OAO NGK Slavneft’s gas reserves under SEC LOF achieved 365.2 bln cu ft and exceeded the previous year indicators by 18.3 bln cu ft, or by 5.3%.
The ratio of Holding’s oil reserve replacement, which is estimated as the ratio of recoverable proved oil reserve increment (268.6 mln bbl) to the 2014 oil production volume (118.2 mln bbl), is equal to 2.27 under the SEC LOF standards.
In 2014, the Company discovered 29 new hydrocarbon deposits in the Tailakovsy, Vatinsky, Severo-Ostrovnoi, Severo-Pokursky and Zapadno-Ust-Balyksky license areas of the Khanty-Mansi Autonomous Area-Yugra and in the Tersko-Kamovsky license area of the Kransoyarsk region.
According to the independent audit data, the total proved commercial crude oil reserves of OAO NGK Slavneft under the PRMS (Petroleum Resources Management System) criteria amounted to 1,972.8 mln bbl and exceeded the 2013 indicators by 209.2 mln bbl, or by 11.9%. Gas reserves under PRMS increased by 8.4 bln cu ft (2.3%) and made 375.4 bln cu ft.
The volume of Slavneft’s 2P oil equivalent reserves (total proved plus probable reserves) under PRMS increased by 10.9 % (504.3 mln bbl) against the previous year and achieved 5,139.8 mln bbl by December 31, 2014. 2P gas reserves under PRMS made 654.6 bln cu ft and exceeded the 2013 indicators by 3.8% (23.9 bln cu ft).
In 2014, independent audit of OAO NGK Slavneft’s hydrocarbon reserves was carried out in 35 fields, 33 of which are situated in KhMAO-Yugra and 2 of which are in the Krasnoyarsk region. DeGolyer and MacNaughton, an international company, performed the audit.