BP 2010 Annual Report Download - page 236

Supplementaryinformationonoilandnaturalgas(unaudited)
Supplementaryinformationonoilandnaturalgas(unaudited)continued
Movements in estimated net proved reserves
millionbarrels
Crude oila 2010
Europe North South Africa Asia Australasia Total
America America
Rest of
Rest of North Rest of
UK Europe USe America Russia Asia

Subsidiaries
At1January2010
 Developed 403 83 1,862 11 49 422 – 182 58 3,070
 Undeveloped 291 184 1,211 1 56 454 – 334 57 2,588
 694 267 3,073 12 105 876 – 516 115 5,658
Changesattributableto
 Revisionsofpreviousestimates 20 3 (45) 1 (1) (62) – (62) – (146)
 Improvedrecovery 100 9 133 – 17 14 – 145 3 421
 Purchasesofreserves-in-place – 33 6 – – – – 38 – 77
 Discoveriesandextensions 31 1 80 – – 19 – – – 131
 Productionbj(50) (15) (211) (2) (19) (87) – (43) (12) (439)
 Salesofreserves-in-place – – (117) (11) – (15) – – – (143)
 101 31 (154) (12) (3) (131) – 78 (9) (99)
At31December2010cg
 Developed 364 77 1,729 – 44 371 – 269 48 2,902
 Undeveloped 431 221 1,190 – 58 374 – 325 58 2,657
 795 298 2,919 – 102 745 – 594 106 5,559

Equity-accountedentities(BPshare)f
At1January2010
 Developed – – – – 407 – 2,351 363 – 3,121
 Undeveloped – – – – 405 9 1,198 120 – 1,732
 – – – – 812 9 3,549 483 – 4,853
Changesattributableto
 Revisionsofpreviousestimates – – – – 4 3 248 (20) – 235
 Improvedrecovery – – – – 33 – 269 – – 302
 Purchasesofreserves-in-place – – – – – – – – – –
 Discoveriesandextensions – – – – 1 – – – – 1
 Production – – – – (35)i k – (313) (69) – (417)
 Salesofreserves-in-place – – – – – – (3) – – (3)
 – – – – 3 3 201 (89) – 118
At31December2010d
 Developed – – – – 408 – 2,388 370 – 3,166
 Undeveloped – – – – 407 12 1,362 24 – 1,805
 – – – – 815h 12 3,750 394 – 4,971

Totalsubsidiariesandequity-accountedentities(BPshare)
At1January2010
 Developed 403 83 1,862 11 456 422 2,351 545 58 6,191
 Undeveloped 291 184 1,211 1 461 463 1,198 454 57 4,320
 694 267 3,073 12 917 885 3,549 999 115 10,511
At31December2010
 Developed 364 77 1,729 – 452 371 2,388 639 48 6,068
 Undeveloped 431 221 1,190 – 465 386 1,362 349 58 4,462
 795 298 2,919 – 917 757 3,750 988 106 10,530

aC rudeoilincludesNGLsandcondensate.Provedreservesexcluderoyaltiesduetoothers,whetherpayableincashorinkind,wheretheroyaltyownerhasadirectinterestintheunderlyingproductionand
theoptionandabilitytomakeliftingandsalesarrangementsindependently.
bEx
cludesNGLsfromprocessingplantsinwhichaninterestisheldof29thousandbarrelsaday.
cIncludes643millionbarrelsofNGLs.Alsoincludes22millionbarrelsofcrudeoilinrespectofthe30%minorityinterestinBPTrinidadandTobagoLLC.
dIncludes18millionbarrelsofNGLs.Alsoincludes254millionbarrelsofcrudeoilinrespectofthe7.03%minorityinterestinTNK-BP.
eProvedreservesinthePrudhoeBayeldinAlaskaincludeanestimated78millionbarrelsuponwhichanetprotsroyaltywillbepayableoverthelifeoftheeldunderthetermsoftheBPPrudhoeBay
RoyaltyTrust.
fV
olumesofequity-accountedentitiesincludevolumesofequity-accountedinvestmentsofthoseentities.
gIncludes70millionbarrelsrelatingtoassetsheldforsaleat31December2010.Amountsbyregionare:6millionbarrelsinUS;30millionbarrelsinSouthAmerica;and34millionbarrelsinRestofAsia.
hIncludes801millionbarrelsrelatingtoassetsheldforsaleat31December2010.
iIncludes4millionbarrelsofcrudeoilsoldrelatingtoproductionsinceclassicationofequity-accountedentitiesasheldforsale.
jIncludes15millionbarrelsofcrudeoilsoldrelatingtoproductionfromassetsheldforsaleat31December2010.Amountsbyregionare:2millionbarrelsinUS;6millionbarrelsinSouthAmerica;
and7millionbarrelsinRestofAsia.
kIncludes
35millionbarrelsofcrudeoilsoldrelatingtoproductionfromassetsheldforsaleat31December2010.
234BPAnnualReportandForm20-F2010