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Supplementaryinformationonoilandnaturalgas(unaudited)
Financial statements
Supplementaryinformationonoilandnaturalgas(unaudited)continued
Movements in estimated net proved reserves continued
billioncubicfeet
Natural gasa 2009
Europe North South Africa Asia Australasia Total
America America
Restof
Restof North Restof
UK Europe US America Russia Asia
Subsidiaries
At1January2009
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
Changesattributableto
Revisionsofpreviousestimates (114) (8) 549 43 322 270 – (231) 22 853
Improvedrecovery 34 – 550 5 322 49 – 82 75 1,117
Purchasesofreserves-in-place 159 – – – – – – 31 – 190
Discoveriesandextensions 150 – 496 94 105 59 – – 531 1,435
Productionb (243) (9) (907) (100) (929) (249) – (241) (189) (2,867)
Salesofreserves-in-place (118) – (4) – – – – (223) – (345)
(132) (17) 684 42 (180) 129 – (582) 439 383
At31December2009c
Developed 1,602 49 9,583 716 3,177 1,107 – 1,579 3,219 21,032
Undeveloped 670 397 5,633 453 7,393 1,454 – 249 3,107 19,356
2,272 446 15,216 1,169 10,570 2,561 – 1,828 6,326 40,388
Equity-accountedentities(BPshare)e
At1January2009
Developed – – – – 1,498 – 1,560 176 – 3,234
Undeveloped – – – – 1,023 182 653 111 – 1,969
– – – – 2,521 182 2,213 287 – 5,203
Changesattributableto
Revisionsofpreviousestimates – – – – (26) (17) 204 (19) – 142
Improvedrecovery – – – – 314 – 1 4 – 319
Purchasesofreserves-in-place – – – – – – – – – –
Discoveriesandextensions – – – – 6 – 23 – – 29
Productionb – – – – (165) – (219) (25) – (409)
Salesofreserves-in-place – – – – (388) – – (154) – (542)
– – – – (259) (17) 9 (194) – (461)
At31December2009d
Developed – – – – 1,252 – 1,703 80 – 3,035
Undeveloped – – – – 1,010 165 519 13 – 1,707
– – – – 2,262 165 2,222 93 – 4,742
Totalsubsidiariesandequity-accountedentities(BPshare)
At1January2009
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
At31December2009
Developed 1,602 49 9,583 716 4,429 1,107 1,703 1,659 3,219 24,067
Undeveloped 670 397 5,633 453 8,403 1,619 519 262 3,107 21,063
2,272 446 15,216 1,169 12,832 2,726 2,222 1,921 6,326 45,130
a
Provedreservesexcluderoyaltiesduetoothers,whetherpayableincashorinkind,wheretheroyaltyownerhasadirectinterestintheunderlyingproductionandtheoptionandabilitytomakeliftingand
salesarrangementsindependently.
b
I
ncludes195billioncubicfeetofnaturalgasconsumedinoperations,164billioncubicfeetinsubsidiaries,31billioncubicfeetinequity-accountedentitiesandexcludes16billioncubicfeetofproduced
non-hydrocarboncomponentswhichmeetregulatoryrequirementsforsales.
c
Includes
3,068billioncubicfeetofnaturalgasinrespectofthe30%minorityinterestinBPTrinidadandTobagoLLC.
d
Includes131billioncubicfeetofnaturalgasinrespectofthe5.79%minorityinterestinTNK-BP.
e
V olumesofequity-accountedentitiesincludevolumesofequity-accountedinvestmentsofthoseentities.
BPAnnualReportandForm20-F2010 239