Proved Natural Gas Reserves

Countries Continents	at end 1991	at end 2001	at end 2010	Trillion cubic feet
Countries Continents	Trillion cubic metres	Trillion cubic metres	Trillion cubic metres	Trillion cubic feet
US	4,74	5,2	8,2	299,83
Canada	2,72	1,7	1,79	70,02
Mexico	2,01	0,8	0,34	12,5
Total North America	9,47	7,70	10,33	382,35

Argentina	0,65	0,77	0,36	12,03
Bolivia	0,12	0,78	0,29	9,93
Brazil	0,13	0,22	0,42	15,99
Colombia	0,1	0,13	0,16	5,76
Peru	0,35	0,25	0,36	12,47
Trinidad and Tobago	0,24	0,58	0,39	14,17
Venezuela	3,59	4,18	5,46	195,19
Other S. and Cent. America	0,17	0,13	0,07	2,24
Total S. and Cent. America	5,31	7,01	7,47	267,74

Azerbaijan	n/a	1,24	1,28	44,87
Denmark	0,11	0,15	0,06	1,63
Germany	0,17	0,2	0,07	2,2
Italy	0,34	0,17	0,1	3,08
Kazakhstan	n/a	1,78	1,89	66,44
Netherlands	1,77	1,47	1,11	38,89
Norway	1,28	2,19	2,05	73,11
Poland	0,16	0,12	0,13	4,28
Romania	0,49	0,33	0,6	3,85
Russian Federation	n/a	42,36	44,38	1574,98
Turkmenistan	n/a	2,59	13,38	858,81
Ukraine	n/a	1,01	0,94	33,02
United Kingdom	0,55	1,11	0,21	7,14
Uzbekistan	n/a	1,68	1,61	56,59
Other Europe and Eurasia	50,11	0,46	0,29	10,02
Total Europe and Eurasia	54,92	56,78	68	2778,84

Bahrain	0,18	0,11	0,22	12,28
Iran	19,8	26,11	33,1	1168,57
Iraq	3,1	3,11	3,18	126,71
Kuwait	1,52	1,56	1,79	63,01
Oman	0,1	0,95	0,95	33,55
Qatar	6,43	25,79	25,05	884,53
Saudi Arabia	5,23	6,46	8,02	287,83
Syria	0,21	0,25	0,29	10,07
United Arab Emirates	5,8	6,06	6,09	215,07
Yemen	0,4	0,48	0,49	16,92
Other Middle East	⁽²⁾	0,06	0,23	7,81
Total Middle East	42,73	70,9	79,37	2826,29

Algeria	3,63	4,53	4,51	159,06
Egypt	0,4	1,56	2,22	77,34
Libya	1,31	1,32	1,5	52,8
Nigeria	3,41	4,64	5,12	180,46
Other Africa	0,79	1,11	1,21	43,54
Total Africa	9,52	13,14	14,53	513,19

Australia	0,95	2,67	3,67	132,76
Bangladesh	0,73	0,35	0,36	12,51
Brunei	0,4	0,36	0,31	10,18
China	1,01	1,37	2,86	107,75
India	0,74	0,77	1,15	43,83
Indonesia	1,85	2,61	2,97	104,71
Malaysia	1,68	2,49	2,44	86,01
Myanmar	0,28	0,35	0,23	7,81
Pakistan	0,76	0,75	0,82	27,51
Papua New Guinea	0,41	0,43	0,45	15,61
Thailand	0,25	0,38	0,3	9,95
Vietnam	⁽²⁾	0,2	0,62	21,8
Other Asia Pacific	0,32	0,39	0,36	12,13
Total Asia Pacific	9,33	13,06	16,47	592,49

Total World	131,24	168,55	196,14	7360,86
of which.. OECD	15,18	16,09	18,09	660,2
Non-OECD	116,06	152,46	178,05	6700,66
European Union	3,76	3,63	2,33	64,41
Former Soviet Union	49,78	50,88	63,55	2638,54

Countries Continents	at end 2011	Share of total	R/P ratio
Countries Continents	Trillion cubic metres	Share of total	R/P ratio
US	8,49	4,1%	13,04
Canada	1,99	1,0%	12,36
Mexico	0,36	0,2%	6,75
Total North America	10,84	5,3%	12,53

Argentina	0,35	0,2%	8,78
Bolivia	0,29	0,1%	18,3
Brazil	0,46	0,2%	27,1
Colombia	0,17	0,1%	14,88
Peru	0,36	0,2%	31,07
Trinidad and Tobago	0,41	0,2%	9,87
Venezuela	5,53	2,7%	⁽¹⁾
Other S. and Cent. America	0,07	⁽³⁾	23,71
Total S. and Cent. America	7,59	3,6%	45,22

Azerbaijan	1,28	0,6%	85,79
Denmark	⁽²⁾	⁽³⁾	6,52
Germany	0,07	⁽³⁾	6,22
Italy	0,09	⁽³⁾	11,37
Kazakhstan	1,89	0,9%	97,63
Netherlands	1,11	0,5%	17,16
Norway	2,07	1,0%	20,41
Poland	0,13	0,1%	28,29
Romania	0,11	0,1%	9,91
Russian Federation	44,6	21,4%	73,48
Turkmenistan	24,32	11,7%	⁽¹⁾
Ukraine	0,94	0,4%	51,29
United Kingdom	0,21	0,1%	4,47
Uzbekistan	1,61	0,8%	28,11
Other Europe and Eurasia	0,29	0,1%	29,4
Total Europe and Eurasia	78,69	37,8%	75,93

Bahrain	0,35	0,2%	26,8
Iran	33,1	15,9%	⁽¹⁾
Iraq	3,59	1,7%	⁽¹⁾
Kuwait	1,79	0,9%	⁽¹⁾
Oman	0,95	0,5%	35,83
Qatar	25,05	12,0%	⁽¹⁾
Saudi Arabia	8,16	3,9%	82,14
Syria	0,29	0,1%	34,26
United Arab Emirates	6,09	2,9%	⁽¹⁾
Yemen	0,48	0,2%	50,75
Other Middle East	0,23	0,1%	49,32
Total Middle East	80,04	38,4%	⁽¹⁾

Algeria	4,51	2,2%	57,75
Egypt	2,2	1,1%	35,75
Libya	1,5	0,7%	⁽¹⁾
Nigeria	5,12	2,5%	⁽¹⁾
Other Africa	1,24	0,6%	63,41
Total Africa	14,54	7,0%	71,71

Australia	3,76	1,8%	83,61
Bangladesh	0,36	0,2%	17,81
Brunei	0,29	0,1%	22,51
China	3,06	1,5%	29,76
India	1,25	0,6%	26,9
Indonesia	2,97	1,4%	39,23
Malaysia	2,44	1,2%	39,42
Myanmar	0,23	0,1%	17,82
Pakistan	0,78	0,4%	19,89
Papua New Guinea	0,45	0,2%	⁽¹⁾
Thailand	0,29	0,1%	7,61
Vietnam	0,62	0,3%	72,3
Other Asia Pacific	0,35	0,2%	18,92
Total Asia Pacific	16,78	8,0%	35,02

Total World	208,44	100,0%	63,63
of which.. OECD	18,7	9,0%	16,01
Non-OECD	189,75	91,0%	90,01
European Union	1,83	0,9%	11,77
Former Soviet Union	74,72	35,8%	96,27

Notes..

⁽¹⁾ More than 100 years
⁽²⁾ Less than 0.05
⁽³⁾ Less than 0.05%

Proved reserves of oil - Generally taken to be those quantities that geological and engineering information indicates with reasonable certainty can be recovered in the future from known reservoirs under existing economic and operating conditions.

Reserves-to-production (R/P) ratio - If the reserves remaining at the end of any year are divided by the production in that year, the result is the length of time that those remaining reserves would last if production were to continue at that rate.

Reference(s) of data - The estimates in this table have been compiled using a combination of primary official source and third-party data from Cedigaz and the OPEC Secretariat.

Graphics of global Natural Gas Reserves-to-production (R/P) ratios

World natural gas proved reserves in 2010 were sufficient to meet 58.6 years of global production. R/P ratios declined for each region, driven by rising production. The Middle East once again had the highest regional R/P ratio, while Middle East and Former Siviet Union regions jointly hold 72% of the world's gas reserves.

Reference(s)..

Other Pages

Part 1..
Introduction to fossil fuels

Part 2..
Oil and Gas exploration

Part 3..
Oil & Gas extraction

Part 4..
Transport & Storage of Crude Oil & Natural Gas

Part 5..
Petroleum Refining Processes

Part 6..
Facts from the Oil Industry

Part 7..
Current Crude Oil prices

Part 8..
Proved Global Oil Reserves

Part 9..
Proved Natural Gas Reserves

Part 10..
The End of the Oil Age?