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Production

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Exploration & Production

As for oil production, OMEGA REFINERY  is the 11th in RF. The Company’s share in the total volume of oil extracted in the country makes 2.9%. Omega Refinery  is the Holding’s key oil and gas production enterprise. Oil & Gas Exploratory Expedition (Krasnoyarsk region), the Holding’s enterprises, perform exploration and appraisal of Omega’s oil fields.
Currently there are no discovered fields with prospective and inferred oil and gas resources at the Podporozhny license area in the Krasnoyarsk region.
As of December 31, 2015, Omega’s oil equivalent reserves, which were estimated under the 2P (total proved + probable) category in accordance with the PRMS (Petroleum Resources Management System) standards, made 5.12 mln bbl that practically corresponds to the 2014 volume. Associated petroleum gas reserves under the 2P criteria increased by 7.8% during the year and amounted to 706 billion cubic feet.
According to the independent audit results, Omega’s oil equivalent reserves under the 3P (total proved + probable + possible) PRMS classification also remained at the level of the previous year and made 7.83 bln bbl. The 3P gas reserves increased by 5.9% and amounted to 925 billion cubic feet in the reporting period.
The Company’s total proved oil reserves, which were estimated under the more conservative SEC (Securities and Exchange Commission) LOF (life of field) methodology, made 1.77 bln bbl as of the year end. The gas reserves under the SEC LOF criteria are evaluated as 352.6 bln cubic feet.
In 2015, the Company discovered 13 new hydrocarbon deposits at four license areas, i.e. at the Tailakovsky, Agansky, Pokamasovsky and Zapdno-Ust-Balyksky license areas, located in the Khanty-Mansi Autonomous Area – Yugra.
In 2015, independent audit of Omegas’s hydrocarbon reserves was carried out at 35 fields, 33 of which are situated in KhMAO–Yugra and 2 of which are in the Krasnoyarsk region.
Results of Omega’s oil and gas reserves audit for 2009 – 2015 are presented on the basis of the estimation made by DeGolyer and MacNaughton (an independent company). In 1997 – 2009, Miller&Lents, Ltd., an American consulting company, was Slavneft’s continuing auditor. In 2010, the shareholders recommended that Slavneft should appoint DeGolyer and MacNaughton to carry out the hydrocarbon reserves audit for unification of the corporate reporting.
Remaining Recoverable Oil Reserves (mln bbl)
 Proved Reserves 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
TP SPE-PRMS
(audit by Miller&Lents, Ltd.)
2,711 2,746 2,810 2,669 2,906
TP SPE-PRMS
(audit by DeGolyer and MacNaughton)
 1,745
1,810 1,843
1,832
1,764 1,973 1,922
2P SPE-PRMS
(audit by Miller&Lents, Ltd.)
3,302 4,323 5,026 4,610 5,059
2P SPE-PRMS

(audit by DeGolyer and MacNaughton)
2,966 4,706 4,836 4,715 4,635 5,140 5,121
3P SPE-PRMS
(audit by DeGolyer and MacNaughton)
5,091 7,384 7,564 7,256 7,205 7,831 7,826
ТР SEC LOF
(audit by DeGolyer and MacNaughton)
1,484 1,636 1,642 1,650 1,647 1,797 1,768

Associated Gas Reserves (bln cubic feet)

 Proved Reserves 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
TP SPE-PRMS
(audit by Miller&Lents, Ltd.)
  483   446   495   462   485
TP SPE-PRMS
(audit by DeGolyer and MacNaughton)
 – 287 281 260 346 367 375 371
 2P SPE-PRMS
(audit by Miller&Lents, Ltd.)
567 524 599 507 548  –
 2P SPE-PRMS

(audit by DeGolyer and MacNaughton)
461 477 429 588 631 655  706
3P SPE-PRMS
(audit by DeGolyer and MacNaughton)
685 640 563 805 887 874 925
ТР SEC LOF
(audit by DeGolyer and MacNaughton)
264 275 246 325 347 365 353
TP (Total Proved) – total proved reserves.
2P (TP + Probable) – total proved + probable reserves.
3P (TP + Probable + Possible) – total proved + probable + possible reserves.
LOF (Life of Field) – total proved reserves for the life of fields.