BP 2010 Annual Report Download - page 244

Supplementaryinformationonoilandnaturalgas(unaudited)
Supplementaryinformationonoilandnaturalgas(unaudited)continued
Movements in estimated net proved reserves continued
billioncubicfeet
Natural gasa      2008
Europe North South Africa Asia Australasia  Total
  America America    
    Restof     
  Restof  North    Restof 
 UK Europe US America   Russia Asia 
Subsidiaries
At1January2008
 Developed 2,049 63 10,670 608 3,075 990 – 1,270 1,135 19,860
 Undeveloped 553 410 4,705 421 7,973 1,410 – 1,269 4,529 21,270
    2,602 473 15,375 1,029 11,048 2,400 – 2,539 5,664 41,130
Changesattributableto
 Revisionsofpreviousestimates 23 (8) (2,063) 51 (456) 142 – – 361 (1,950)
 Improvedrecovery 77 9 1,322 16 159 6 – 108 2 1,699
 Purchasesofreserves-in-place – – 183 – – – – – – 183
 Discoveriesandextensions – – 549 125 948 82 – 37 – 1,741
 Productionb (298) (11) (834) (94) (946) (198) – (274) (140) (2,795)
 Salesofreserves-in-place – – – – (3) – – – – (3)
    (198) (10) (843) 98 (298) 32 – (129) 223 (1,125)
At31December2008c
 Developed 1,822 61 9,059 659 3,316 1,050 – 1,102 1,887 18,956
 Undeveloped 582 402 5,473 468 7,434 1,382 – 1,308 4,000 21,049
    2,404 463 14,532 1,127 10,750 2,432 – 2,410 5,887 40,005

Equity-accountedentities(BPshare)e
At1January2008
 Developed – – – – 1,478 – 808 187 – 2,473
 Undeveloped – – – – 831 – 353 113 – 1,297
    – – – – 2,309 – 1,161 300 – 3,770
Changesattributableto
 Revisionsofpreviousestimates – – – – (96) 182 1,273 (2) – 1,357
 Improvedrecovery – – – – 301 – – 11 – 312
 Purchasesofreserves-in-place – – – – 3 – – – – 3
 Discoveriesandextensions – – – – 192 – – – – 192
 Productionb – – – – (188) – (221) (22) – (431)
 Salesofreserves-in-place – – – – – – – – – –
    – – – – 212 182 1,052 (13) – 1,433
At31December2008d
 Developed – – – – 1,498 – 1,560 176 – 3,234
 Undeveloped – – – – 1,023 182 653 111 – 1,969
    – – – – 2,521 182 2,213 287 – 5,203

Totalsubsidiariesandequity-accountedentities(BPshare)
At1January2008
 Developed 2,049 63 10,670 608 4,553 990 808 1,457 1,135 22,333
 Undeveloped 553 410 4,705 421 8,804 1,410 353 1,382 4,529 22,567
    2,602 473 15,375 1,029 13,357 2,400 1,161 2,839 5,664 44,900
At31December2008
 Developed 1,822 61 9,059 659 4,814 1,050 1,560 1,278 1,887 22,190
 Undeveloped 582 402 5,473 468 8,457 1,564 653 1,419 4,000 23,018
    2,404 463 14,532 1,127 13,271 2,614 2,213 2,697 5,887 45,208

a
Proved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

Includes193billioncubicfeetofnaturalgasconsumedinoperations,149billioncubicfeetinsubsidiaries,44billioncubicfeetinequity-accountedentitiesandexcludes17billioncubicfeetofproduced
non-hydrocarboncomponentswhichmeetregulatoryrequirementsforsales.
c
Includes
3,108billioncubicfeetofnaturalgasinrespectofthe30%minorityinterestinBPTrinidadandTobagoLLC.
dIncludes131billioncubicfeetofnaturalgasinrespectofthe5.92%minorityinterestinTNK-BP.
e
Volumesofequity-accountedentitiesincludevolumesofequity-accountedinvestmentsofthoseentities.
242BPAnnualReportandForm20-F2010