download - BG Group

Exploration and Production: Estimated net
proved reserves of natural gas
The allocation of the countries within these areas is:
Atlantic Basin – Canada, Egypt, Nigeria, Trinidad and Tobago and the USA
Asia and the Middle East – Australia, China, India, Areas of Palestinian Authority and Israel, Kazakhstan, Oman and Thailand
Rest of the world – Algeria, Bolivia, Brazil, Italy, Libya, Madagascar, Mauritania, Norway, Spain and Tunisia.
UK
bcf
Atlantic
Basin
bcf
Asia and
Middle East
bcf
As at 31 December 2005 1 124 4 547 2 630 1 366 9 667 (1)
Movement during the year:
Revisions of previous estimates (2) 80 583 145 20 828
Extensions, discoveries and reclassifications 87 – – – 87
Production (223) (515) (170) (92) (1 000)
Purchase of reserves-in-place – – – – –
Sale of reserves-in-place – – – – –
Rest of
world
bcf
Total
bcf
(56) 68 (25) (72) (85)
As at 31 December 2006 1 068 4 615 2 605 1 294 9 582 (1)
Movement during the year:
Revisions of previous estimates (2) 122 469 (192) 25 424
Extensions, discoveries and reclassifications 5 – 159 – 164
Production (192) (465) (191) (90) (938)
Purchase of reserves-in-place 21 – – – 21
Sale of reserves-in-place – (57) – – (57)
(44) (53) (224) (65) (386)
As at 31 December 2007 1 024 4 562 2 381 1 229 9 196 (1)
Movement during the year:
Revisions of previous estimates (2) 174 59 947 57 1 237
Extensions, discoveries and reclassifications 4 – 183 102 289
Production (182) (486) (210) (87) (965)
Purchase of reserves-in-place – – 866 – 866
Sale of reserves-in-place – – – – –
(4) (427) 1 786 72 1 427
As at 31 December 2008 1 020 4 135 4 167 1 301 10 623
Proved developed reserves of natural gas:
As at 31 December 2005 937 2 267 2 139 929 6 272
As at 31 December 2006 846 2 232 2 006 844 5 928
As at 31 December 2007 807 1 897 2 046 822 5 572
As at 31 December 2008 813 1 915 3 040 1 001 6 769
(1) Estimates of proved natural gas reserves at 31 December 2008 include fuel gas of 668 bcf (31 December 2007 632 bcf; 31 December 2006 640 bcf;
31 December 2005 534 bcf).
(2) Includes effect of oil and gas price changes on PSCs.
BG Group Data Book 2009
45
STATISTICAL SUPPLEMENT