BP 2011 Annual Report Download - page 278

276 BP Annual Report and Form 20-F 2011
Supplementary information on oil and natural gas (unaudited)
Movements in estimated net proved reserves continued
million barrels of oil equivalent
Total hydrocrabonsa2009
Europe North
America
South
America
Africa Asia Australasia Total
UK
Rest of
Europe USe
Rest of
North
America Russia
Rest of
Asia
Subsidiaries
At 1 January 2009
Developed 724 91 3,279 126 617 645 –385 382 6,249
Undeveloped 219 264 2,217 81 1,337 734 –714 747 6,313
943 355 5,496 207 1,954 1,379 –1,099 1,129 12,562
Changes attributable to
Revisions of previous estimates (13) (2) 260 974 (74) –(168) 793
Improved recovery 48 7177 163 40 –45 15 396
Purchases of reserves-in-place 28 ––––––6–34
Discoveries and extensions 210 –158 17 18 124 – – 98 625
Productionb f (102) (16) (393) (20) (182) (152) –(86) (44) (995)
Sales of reserves-in-place (28) –(1) ––––(65) –(94)
143 (11) 201 7(27) (62) –(268) 76 59
At 31 December 2009c
Developed 680 91 3,514 135 596 613 –455 612 6,696
Undeveloped 406 253 2,183 79 1,331 704 –376 593 5,925
1,086 344 5,697 214 1,927 1,317 –831 1,205 12,621
Equity-accounted entities (BP share)g
At 1 January 2009
Developed ––––658 –2,495 529 –3,682
Undeveloped ––––586 42 1,057 218 –1,903
––––1,244 42 3,552 747 –5,585
Changes attributable to
Revisions of previous estimates ––––(2) (5) 625 (32) –586
Improved recovery ––––104 – 8 1 – 113
Purchases of reserves-in-place ––––––––––
Discoveries and extensions ––––4–92 – – 96
Productionb f ––––(66) –(345) (75) –(486)
Sales of reserves-in-place ––––(81) – – (142) –(223)
––––(41) (5) 380 (248) –86
At 31 December 2009d
Developed ––––623 –2,645 377 –3,645
Undeveloped ––––580 37 1,287 122 –2,026
––––1,203 37 3,932 499 –5,671
Total subsidiaries and equity-accounted entities (BP share)
At 1 January 2009
Developed 724 91 3,279 126 1,275 645 2,495 914 382 9,931
Undeveloped 219 264 2,217 81 1,923 776 1,057 932 747 8,216
943 355 5,496 207 3,198 1,421 3,552 1,846 1,129 18,147
At 31 December 2009
Developed 680 91 3,514 135 1,219 613 2,645 832 612 10,341
Undeveloped 406 253 2,183 79 1,911 741 1,287 498 593 7,951
1,086 344 5,697 214 3,130 1,354 3,932 1,330 1,205 18,292
a 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 Excludes NGLs from processing plants in which an interest is held of 26 thousand barrels of oil equivalent per day.
c Includes 819 million barrels of NGLs. Also includes 552 million barrels of oil equivalent in respect of the 30% minority interest in BP Trinidad and Tobago LLC.
d Includes 20 million barrels of NGLs. Also includes 266 million barrels of oil equivalent in respect of the minority interest in TNK-BP.
e Proved reserves in the Prudhoe Bay field in Alaska include an estimated 68 million barrels of oil equivalent upon which a net profits royalty will be payable.
f Includes 34 million barrels of oil equivalent of natural gas consumed in operations, 29 million barrels of oil equivalent in subsidiaries, 5 million barrels of oil equivalent in equity-accounted entities and
excludes 3 million barrels of oil equivalent of produced non-hydrocarbon components which meet regulatory requirements for sales.
g Volumes of equity-accounted entities include volumes of equity-accounted investments of those entities.