BP 2007 Annual Report Download - page 183

BP ANNUAL REPORT AND ACCOUNTS 2007 181
Supplementary information on oil and natural gas continued
Movement in estimated net proved reserves 2005
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Crude oilamillion barrels
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Rest of Rest of Asia
UK Europe US Americas Pacific Africa Russia Other Total
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Subsidiaries
At 1 January 2005
Developed 559 231 2,041 311 65 204 – 62 3,473
Undeveloped 210 109 1,211 299 85 643 – 725 3,282
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
769 340 3,252 610 150 847 – 787 6,755
Changes attributable to
Revisions of previous estimates (31) (8) 103 (21) 21 (190) – (148) (274)
Purchases of reserves-in-place ––2–––––
Discoveries and extensions 11 – 40 3 11 83 – – 148
Improved recovery 32 21 217 1 – 2 – 7 280
Productionb(101) (27) (200) (53) (17) (64) – (34) (496)
Sales of reserves-in-place –(15)(1)(39)––––(
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
(89) (29) 161 (109) 15 (169) – (175) (395)
At 31 December 2005c
Developed 496 225 1,984 215 70 142 – 69 3,201
Undeveloped 184 86 1,429 286 95 536 – 543 3,159
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
680 311 3,413e501 165 678 – 612 6,360
Equity-accounted entities (BP share)
At 1 January 2005
Developed – – – 204 1 – 1,863 592 2,660
Undeveloped – – – 125 – – 294 100 519
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
– – – 329 1 – 2,157 692 3,179
Changes attributable to
Revisions of previous estimates – – – 1 – – 319 119 439
Purchases of reserves-in-place ––––––––
Discoveries and extensions –––2––––
Improved recovery –––25––––
Production – – – (26) – – (333) (57) (416)
Sales of reserves-in-place ––––––(24)–(
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
–––2––(38)62
At 31 December 2005d
Developed – – – 207 1 – 1,688 590 2,486
Undeveloped – – – 124 – – 431 164 719
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
– – – 331 1 – 2,119 754 3,205
aCrude oil includes natural gas liquids (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 to make lifting and sales arrangements independently.
bExcludes NGLs from processing plants in which an interest is held of 58 thousand barrels a day.
cIncludes 818 million barrels of NGLs. Also includes 29 million barrels of crude oil in respect of the 30% minority interest in BP Trinidad and Tobago LLC.
dIncludes 33 million barrels of NGLs. Also includes 95 million barrels of crude oil in respect of the 4.47% minority interest in TNK-BP.
eProved reserves in the Prudhoe Bay field in Alaska include an estimated 85 million barrels upon which a net profits royalty will be payable over the life of the field under the
terms of the BP Prudhoe Bay Royalty Trust.
2
55)
–
2
25
24)
26