Reserve - Revision history

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energy>Luisa at 18:35, 20 September 2021

2021-09-20T18:35:32Z

← Older revision		Revision as of 18:35, 20 September 2021
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	[[category:371 topics]][[Category:Done 2018-12-10]]		[[category:371 topics]][[Category:Done 2018-12-10]] [[Category:Translated to French]]
			[[fr:Réserve]]
			[[Category:Translated to Spanish]]
			[[es:Reserva]]
	<onlyinclude>'''Reserves''' are deposits of natural resources like [[fuel]]s, [[element]]s, and [[mineral]]s that are known to exist with a reasonable level of certainty based on geological and engineering studies. These reserves are also recoverable economically with technologies that currently exist.</onlyinclude><ref name="RE1">Richard Wolfson. (May 29, 2015). ''Energy, Environment, and Climate'', 2nd ed. New York, NY, U.S.A: 2012.</ref>		<onlyinclude>'''Reserves''' are deposits of natural resources like [[fuel]]s, [[element]]s, and [[mineral]]s that are known to exist with a reasonable level of certainty based on geological and engineering studies. These reserves are also recoverable economically with technologies that currently exist.</onlyinclude><ref name="RE1">Richard Wolfson. (May 29, 2015). ''Energy, Environment, and Climate'', 2nd ed. New York, NY, U.S.A: 2012.</ref>

Jmdonev at 22:28, 24 February 2019

2019-02-24T22:28:16Z

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	<iframe width="560" height="315" src="https://www.youtube.com/embed/TrtoKGSA5dc" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>		<iframe width="560" height="315" src="https://www.youtube.com/embed/TrtoKGSA5dc" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
	<html>		</html>

	==Types of Reserves==		==Types of Reserves==

Jmdonev at 22:26, 24 February 2019

2019-02-24T22:26:44Z

← Older revision		Revision as of 22:26, 24 February 2019
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	:: [[reserve vs occurrence\|''main page'']]		:: [[reserve vs occurrence\|''main page'']]
	Although both occurrence and reserves refer to some amount of a [[resource]], they are not the same thing and should not be confused as they are very [[reserve vs occurrence\|different]]. This difference can be explored using a [[McKelvey box\|McKelvey diagram]]. McKelvey diagrams portray information about how a resource can turn into a reserve over time.		Although both occurrence and reserves refer to some amount of a [[resource]], they are not the same thing and should not be confused as they are very [[reserve vs occurrence\|different]]. This difference can be explored using a [[McKelvey box\|McKelvey diagram]]. McKelvey diagrams portray information about how a resource can turn into a reserve over time.

			<html>
			<iframe width="560" height="315" src="https://www.youtube.com/embed/TrtoKGSA5dc" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
			<html>

	==Types of Reserves==		==Types of Reserves==

Jmdonev: 1 revision imported

2019-01-04T18:15:00Z

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2dev>Jmdonev at 07:24, 17 November 2018

2018-11-17T07:24:08Z

← Older revision		Revision as of 07:24, 17 November 2018
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	[[category:371 topics]]		[[category:371 topics]][[Category:Done 2018-12-10]]
	[[Category:Done ~~2015~~-06-11]]		<onlyinclude>'''Reserves''' are deposits of natural resources like [[fuel]]s, [[element]]s, and [[mineral]]s that are known to exist with a reasonable level of certainty based on geological and engineering studies. These reserves are also recoverable economically with technologies that currently exist.</onlyinclude><ref name="RE1">Richard Wolfson. (May 29, 2015). ''Energy, Environment, and Climate'', 2nd ed. New York, NY, U.S.A: 2012.</ref>
	<onlyinclude>'''Reserves''' are deposits of [[~~fossil~~ fuel]]s that are known to exist with a reasonable level of certainty based on geological and engineering studies. These reserves are also recoverable economically with ~~the~~ technologies that ~~already~~ exist.</onlyinclude><ref name="RE1">Richard Wolfson. (May 29, 2015). ''Energy, Environment, and Climate'', 2nd ed. New York, NY, U.S.A: 2012.</ref>

	==Reserve vs~~. Resource~~==		==Reserve vs Occurrence ==
	:: [[reserve vs ~~resource~~\|''main page'']]		:: [[reserve vs occurrence\|''main page'']]
	Although both ~~[[resource]]s~~ and reserves refer to some amount of a ~~mineral or~~ [[~~fuel~~]], they are not the same thing and should not be confused as they are very [[reserve vs ~~resource~~\|different]]. This difference can be explored using a [[McKelvey box\|McKelvey diagram]]. McKelvey diagrams portray information about how a resource can turn into a reserve over time ~~with effort~~.		Although both occurrence and reserves refer to some amount of a [[resource]], they are not the same thing and should not be confused as they are very [[reserve vs occurrence\|different]]. This difference can be explored using a [[McKelvey box\|McKelvey diagram]]. McKelvey diagrams portray information about how a resource can turn into a reserve over time.

	==Types of Reserves==		==Types of Reserves==
	There are ~~different~~ reserves ~~for all fossil fuels which~~ are distributed around the globe in different areas ~~and~~ different amounts. Although these numbers may seem precise, they are still a rough estimate of what exactly we know to exist and have the ability to extract economically. One way to determine the size of reserves is known as the [[reserves/production ratio]] or R/P. This number represents the number of years that the reserves would last if production and use was continued at the current rate.<ref name=boyle/>		There are fossil reserves vary and are distributed around the globe in different areas with different amounts. Although these numbers may seem precise, they are still a rough estimate of what exactly we know to exist and have the ability to extract economically. One way to determine the size of reserves is known as the [[reserves/production ratio]] or R/P. This number represents the number of years that the reserves would last if production and use was continued at the current rate.<ref name=boyle/>

	===Oil Reserves===		===Oil Reserves===
	[[Oil]] is one of the most vital fossil fuels, and the distribution of the reserves worldwide is not even. The Middle East holds around 64% of the worlds [[crude oil]] reserves, with Saudi Arabia alone accounting for nearly a quarter of all reserves worldwide.<ref name=boyle>G.Boyle, B.Everett, S.Peake, J.Ramage. (June 2, 2015). ''Energy Systems and Sustainability: Power for a Sustainable Future'', 2nd Ed. Oxford, UK: Oxford University Press, 2012</ref> Conversely, the largest oil ~~consumer - the~~ United ~~States - has~~ less than 2% of the worlds reserves while contributing to more than one-fifth of the total consumption of oil worldwide. Estimates put the worlds oil reserves in the range of 1.2 to 1.4 trillion [[BOE\|barrels]]. This is equal to around 6000 [[joule\|EJ]], or 6000 [[quad]]s.<ref name="RE1"/> Advances in drilling technologies have resulted in more oil becoming "reserve oil" as it becomes economical to extract. Below is a chart showing where the world's oil reserves are located.		:: [[oil reserve\|''main page'']]
			[[Oil]] is one of the most vital fossil fuels, and the distribution of the reserves worldwide is not even. The Middle East holds around 64% of the worlds [[crude oil]] reserves, with Saudi Arabia alone accounting for nearly a quarter of all reserves worldwide.<ref name=boyle>G.Boyle, B.Everett, S.Peake, J.Ramage. (June 2, 2015). ''Energy Systems and Sustainability: Power for a Sustainable Future'', 2nd Ed. Oxford, UK: Oxford University Press, 2012</ref> Conversely, the largest oil consumer—the United States—has less than 2% of the worlds reserves while contributing to more than one-fifth of the total consumption of oil worldwide. Estimates put the worlds oil reserves in the range of 1.2 to 1.4 trillion [[BOE\|barrels]]. This is equal to around 6000 [[joule\|EJ]], or 6000 [[quad]]s.<ref name="RE1"/> Advances in drilling technologies have resulted in more oil becoming "reserve oil" as it becomes economical to extract. Below is a chart showing where the world's oil reserves are located.

	Press the play button on the simulation below to see how the oil reserves have changed over the last few decades.		Press the play button on the simulation below to see how the oil reserves have changed over the last few decades.

	<html><iframe height='525px' width='785px' style='border:1px solid #cccccc' src='~~http~~://www.google.com/publicdata/embed?ds=lp1a8c08eee7i_&ctype=c&strail=false&bcs=o&nselm=s&met_y=oil_reserves&scale_y=lin&ind_y=false&idim=region:AFR:APA:EEA:MEA:NOA:SCA&ifdim=region&ind=false&icfg'></iframe></html>		<html><iframe height='525px' width='785px' style='border:1px solid #cccccc' src='https://www.google.com/publicdata/embed?ds=lp1a8c08eee7i_&ctype=c&strail=false&bcs=o&nselm=s&met_y=oil_reserves&scale_y=lin&ind_y=false&idim=region:AFR:APA:EEA:MEA:NOA:SCA&ifdim=region&ind=false&icfg'></iframe></html>

	===Coal Reserves===		===Coal Reserves===
	:: [[coal reserve\| ''main page'']]		:: [[coal reserve\| ''main page'']]
	[[Coal]] is the most abundant of all the fossil fuels, ~~and~~ therefore ~~there is~~ a significant amount of coal in reserves ~~worldwide~~. Although these areas are spread out ~~- with~~ major reserves in the United States, Russia, China, Australia, and India ~~- there is still a significant amount of coal in reserves, around 10<sup>12</sup> [[tonne]]s~~. Coal reserves have the largest R/P ratio of 120 years, meaning that if production rates remain the same the current coal reserves will last 120 years.<ref name=boyle/> Below is a chart showing where the world's coal reserves are located.		[[Coal]] is the most abundant of all the fossil fuels, therefore, a significant amount of coal in reserves still exist worldwide— around 10<sup>12</sup> [[tonne]]s. Although these areas are spread out, major reserves are in the United States, Russia, China, Australia, and India. Coal reserves have the largest R/P ratio of 120 years, meaning that if production rates remain the same the current coal reserves will last 120 years.<ref name=boyle/> Below is a chart showing where the world's coal reserves are located.

	<html><iframe height='525px' width='785px' style='border:1px solid #cccccc' src='~~http~~://www.google.com/publicdata/embed?ds=lp1a8c08eee7i_&ctype=c&bcs=o&nselm=s&met_y=coal_reserves&met_c=default&ifdim=region&idim=region:AFR:APA:EEA:MEA:NOA:SCA'></iframe></html>		<html><iframe height='525px' width='785px' style='border:1px solid #cccccc' src='https://www.google.com/publicdata/embed?ds=lp1a8c08eee7i_&ctype=c&bcs=o&nselm=s&met_y=coal_reserves&met_c=default&ifdim=region&idim=region:AFR:APA:EEA:MEA:NOA:SCA'></iframe></html>

	===Natural Gas Reserves===		===Natural Gas Reserves===
	[[Natural gas]] tends to form with crude oil, although the quantities of oil and gas do not always relate. For example, Saudi Arabia has massive oil reserves but is comparable to the United States in its gas reserves. The world's reserves of natural gas are estimated to be around 6 quadrillion cubic feet, which amounts to 6000 ~~EJ, the~~ same as the world's oil reserves.<ref name="RE1"/> 40% of all conventional natural gas reserves are located in the Middle East, and 30% is in the former Soviet Union.<ref name=boyle/> Below is a chart showing where the world's natural gas reserves are located. Press the play button to see how the natural gas reserves in the world have changed in the past few decades.		[[Natural gas]] tends to form with crude oil, although the quantities of oil and gas do not always relate. For example, Saudi Arabia has massive oil reserves but is comparable to the United States in its gas reserves. The world's reserves of natural gas are estimated to be around 6 quadrillion cubic feet, which amounts to 6000 EJ—the same as the world's oil reserves.<ref name="RE1"/> 40% of all conventional natural gas reserves are located in the Middle East, and 30% is in the former Soviet Union.<ref name=boyle/> Below is a chart showing where the world's natural gas reserves are located. Press the play button to see how the natural gas reserves in the world have changed in the past few decades.

	<html><iframe height='525px' width='785px' style='border:1px solid #cccccc' src='~~http~~://www.google.com/publicdata/embed?ds=lp1a8c08eee7i_&ctype=c&strail=false&bcs=o&nselm=s&met_y=gas_reserves&scale_y=lin&ind_y=false&idim=region:AFR:APA:EEA:MEA:NOA:SCA&ifdim=region&ind=false&icfg'></iframe></html>		<html><iframe height='525px' width='785px' style='border:1px solid #cccccc' src='https://www.google.com/publicdata/embed?ds=lp1a8c08eee7i_&ctype=c&strail=false&bcs=o&nselm=s&met_y=gas_reserves&scale_y=lin&ind_y=false&idim=region:AFR:APA:EEA:MEA:NOA:SCA&ifdim=region&ind=false&icfg'></iframe></html>

	===Unconventional Fossil Reserves===		===Unconventional Fossil Reserves===
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	Aside from traditional deposits, there are other places that crude oil and natural gas can be gathered from. Generally speaking these deposits are less economical to mine as they require more advanced technology and more effort to extract and process the fuels for use. Nevertheless, as technologies advance the ability to obtain fossil fuels from these deposits becomes more economic, leading to increased reserves (although the [[resource]] is still decreasing).		Aside from traditional deposits, there are other places that crude oil and natural gas can be gathered from. Generally speaking these deposits are less economical to mine as they require more advanced technology and more effort to extract and process the fuels for use. Nevertheless, as technologies advance the ability to obtain fossil fuels from these deposits becomes more economic, leading to increased reserves (although the [[resource]] is still decreasing).

	There are several different types of unconventional oil reserves. The [[oil sands]] are one example of an unconventional resource as bitumen-soaked sand is dug up and the bitumen is extracted and upgraded to yield crude oil. This process is more labour-intensive than obtaining crude oil from wells, but possible. The province of Alberta alone contains around 1.6 trillion barrels of oil in the oil sands, more than the world's reserves of crude oil. However, only 10% is currently economic to extract.<ref name="RE1"/> ~~Additionally~~, [[shale oil]] can be obtained by utilizing [[hydraulic fracturing]] to break apart oil shale. The shale is then put under extreme [[pressure]]s and [[temperature]]s to extract oil. Rough estimates put the amount of oil locked into oil shale at 1 trillion barrels in the United States alone, approximately equal to the proven world reserves of liquid crude oil.<ref name="RE1"/>		There are several different types of unconventional oil reserves. The [[oil sands]] are one example of an unconventional resource as bitumen-soaked sand is dug up and the bitumen is extracted and upgraded to yield crude oil. This process is more labour-intensive than obtaining crude oil from wells, but possible. The province of Alberta alone contains around 1.6 trillion barrels of oil in the oil sands, more than the world's reserves of crude oil. However, only 10% is currently economic to extract.<ref name="RE1"/> In addition, [[shale oil]] can be obtained by utilizing [[hydraulic fracturing]] to break apart oil shale. The shale is then put under extreme [[pressure]]s and [[temperature]]s to extract oil. Rough estimates put the amount of oil locked into oil shale at 1 trillion barrels in the United States alone, approximately equal to the proven world reserves of liquid crude oil.<ref name="RE1"/>

	For natural gas, [[shale gas]], [[tight gas]], and [[coal bed methane]] deposits are all unconventional sources of fossil fuels as they require hydraulic fracturing or water pumping to extract the gas from the deposits.		For natural gas, [[shale gas]], [[tight gas]], and [[coal bed methane]] deposits are all unconventional sources of fossil fuels as they require hydraulic fracturing or water pumping to extract the gas from the deposits.

			==For Further Reading==
			*[[Reserve vs occurrence]]
			*[[Resource]]
			*[[Oil reserve]]
			*[[Natural gas reserve]]
			*[[McKelvey box]]
			*Or explore a [[Special:Random\|random page]]

	==References==		==References==
	{{reflist}}		{{reflist}}
	[[Category:Uploaded]]		[[Category:Uploaded]]

Jmdonev at 00:30, 23 October 2017

2017-10-23T00:30:40Z

← Older revision		Revision as of 00:30, 23 October 2017
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	Press the play button on the simulation below to see how the oil reserves have changed over the last few decades.		Press the play button on the simulation below to see how the oil reserves have changed over the last few decades.

	<html><iframe height='525px' width='785px' style='border:1px solid #cccccc' src='http://www.google.com/publicdata/embed?ds=~~g5eclhudc0afn_~~&ctype=c&strail=false&bcs=o&nselm=s&met_y=oil_reserves&scale_y=lin&ind_y=false&idim=region:AFR:APA:EEA:MEA:NOA:SCA&ifdim=region&ind=false&icfg'></iframe></html>		<html><iframe height='525px' width='785px' style='border:1px solid #cccccc' src='http://www.google.com/publicdata/embed?ds=lp1a8c08eee7i_&ctype=c&strail=false&bcs=o&nselm=s&met_y=oil_reserves&scale_y=lin&ind_y=false&idim=region:AFR:APA:EEA:MEA:NOA:SCA&ifdim=region&ind=false&icfg'></iframe></html>

	===Coal Reserves===		===Coal Reserves===
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	[[Coal]] is the most abundant of all the fossil fuels, and therefore there is a significant amount of coal in reserves worldwide. Although these areas are spread out - with major reserves in the United States, Russia, China, Australia, and India - there is still a significant amount of coal in reserves, around 10<sup>12</sup> [[tonne]]s. Coal reserves have the largest R/P ratio of 120 years, meaning that if production rates remain the same the current coal reserves will last 120 years.<ref name=boyle/> Below is a chart showing where the world's coal reserves are located.		[[Coal]] is the most abundant of all the fossil fuels, and therefore there is a significant amount of coal in reserves worldwide. Although these areas are spread out - with major reserves in the United States, Russia, China, Australia, and India - there is still a significant amount of coal in reserves, around 10<sup>12</sup> [[tonne]]s. Coal reserves have the largest R/P ratio of 120 years, meaning that if production rates remain the same the current coal reserves will last 120 years.<ref name=boyle/> Below is a chart showing where the world's coal reserves are located.

	<html><iframe height='525px' width='785px' style='border:1px solid #cccccc' src='http://www.google.com/publicdata/embed?ds=~~g5eclhudc0afn_~~&ctype=c&bcs=o&nselm=s&met_y=coal_reserves&met_c=default&ifdim=region&idim=region:AFR:APA:EEA:MEA:NOA:SCA'></iframe></html>		<html><iframe height='525px' width='785px' style='border:1px solid #cccccc' src='http://www.google.com/publicdata/embed?ds=lp1a8c08eee7i_&ctype=c&bcs=o&nselm=s&met_y=coal_reserves&met_c=default&ifdim=region&idim=region:AFR:APA:EEA:MEA:NOA:SCA'></iframe></html>

	===Natural Gas Reserves===		===Natural Gas Reserves===
	[[Natural gas]] tends to form with crude oil, although the quantities of oil and gas do not always relate. For example, Saudi Arabia has massive oil reserves but is comparable to the United States in its gas reserves. The world's reserves of natural gas are estimated to be around 6 quadrillion cubic feet, which amounts to 6000 EJ, the same as the world's oil reserves.<ref name="RE1"/> 40% of all conventional natural gas reserves are located in the Middle East, and 30% is in the former Soviet Union.<ref name=boyle/> Below is a chart showing where the world's natural gas reserves are located. Press the play button to see how the natural gas reserves in the world have changed in the past few decades.		[[Natural gas]] tends to form with crude oil, although the quantities of oil and gas do not always relate. For example, Saudi Arabia has massive oil reserves but is comparable to the United States in its gas reserves. The world's reserves of natural gas are estimated to be around 6 quadrillion cubic feet, which amounts to 6000 EJ, the same as the world's oil reserves.<ref name="RE1"/> 40% of all conventional natural gas reserves are located in the Middle East, and 30% is in the former Soviet Union.<ref name=boyle/> Below is a chart showing where the world's natural gas reserves are located. Press the play button to see how the natural gas reserves in the world have changed in the past few decades.

	<html><iframe height='525px' width='785px' style='border:1px solid #cccccc' src='http://www.google.com/publicdata/embed?ds=~~g5eclhudc0afn_~~&ctype=c&strail=false&bcs=o&nselm=s&met_y=gas_reserves&scale_y=lin&ind_y=false&idim=region:AFR:APA:EEA:MEA:NOA:SCA&ifdim=region&ind=false&icfg'></iframe></html>		<html><iframe height='525px' width='785px' style='border:1px solid #cccccc' src='http://www.google.com/publicdata/embed?ds=lp1a8c08eee7i_&ctype=c&strail=false&bcs=o&nselm=s&met_y=gas_reserves&scale_y=lin&ind_y=false&idim=region:AFR:APA:EEA:MEA:NOA:SCA&ifdim=region&ind=false&icfg'></iframe></html>

	===Unconventional Fossil Reserves===		===Unconventional Fossil Reserves===

J.williams: 1 revision imported

2015-08-26T21:31:36Z

1 revision imported

← Older revision	Revision as of 21:31, 26 August 2015
(No difference)

J.williams at 16:58, 12 August 2015

2015-08-12T16:58:52Z

New page

[[category:371 topics]]
[[Category:Done 2015-06-11]]
<onlyinclude>'''Reserves''' are deposits of [[fossil fuel]]s that are known to exist with a reasonable level of certainty based on geological and engineering studies. These reserves are also recoverable economically with the technologies that already exist.</onlyinclude><ref name="RE1">Richard Wolfson. (May 29, 2015). ''Energy, Environment, and Climate'', 2nd ed. New York, NY, U.S.A: 2012.</ref>

==Reserve vs. Resource==
:: [[reserve vs resource|''main page'']]
Although both [[resource]]s and reserves refer to some amount of a mineral or [[fuel]], they are not the same thing and should not be confused as they are very [[reserve vs resource|different]]. This difference can be explored using a [[McKelvey box|McKelvey diagram]]. McKelvey diagrams portray information about how a resource can turn into a reserve over time with effort.

==Types of Reserves==
There are different reserves for all fossil fuels which are distributed around the globe in different areas and different amounts. Although these numbers may seem precise, they are still a rough estimate of what exactly we know to exist and have the ability to extract economically. One way to determine the size of reserves is known as the [[reserves/production ratio]] or R/P. This number represents the number of years that the reserves would last if production and use was continued at the current rate.<ref name=boyle/>

===Oil Reserves===
[[Oil]] is one of the most vital fossil fuels, and the distribution of the reserves worldwide is not even. The Middle East holds around 64% of the worlds [[crude oil]] reserves, with Saudi Arabia alone accounting for nearly a quarter of all reserves worldwide.<ref name=boyle>G.Boyle, B.Everett, S.Peake, J.Ramage. (June 2, 2015). ''Energy Systems and Sustainability: Power for a Sustainable Future'', 2nd Ed. Oxford, UK: Oxford University Press, 2012</ref> Conversely, the largest oil consumer - the United States - has less than 2% of the worlds reserves while contributing to more than one-fifth of the total consumption of oil worldwide. Estimates put the worlds oil reserves in the range of 1.2 to 1.4 trillion [[BOE|barrels]]. This is equal to around 6000 [[joule|EJ]], or 6000 [[quad]]s.<ref name="RE1"/> Advances in drilling technologies have resulted in more oil becoming "reserve oil" as it becomes economical to extract. Below is a chart showing where the world's oil reserves are located.

Press the play button on the simulation below to see how the oil reserves have changed over the last few decades.

<html><iframe height='525px' width='785px' style='border:1px solid #cccccc' src='http://www.google.com/publicdata/embed?ds=g5eclhudc0afn_&ctype=c&strail=false&bcs=o&nselm=s&met_y=oil_reserves&scale_y=lin&ind_y=false&idim=region:AFR:APA:EEA:MEA:NOA:SCA&ifdim=region&ind=false&icfg'></iframe></html>

===Coal Reserves===
:: [[coal reserve| ''main page'']]
[[Coal]] is the most abundant of all the fossil fuels, and therefore there is a significant amount of coal in reserves worldwide. Although these areas are spread out - with major reserves in the United States, Russia, China, Australia, and India - there is still a significant amount of coal in reserves, around 10<sup>12</sup> [[tonne]]s. Coal reserves have the largest R/P ratio of 120 years, meaning that if production rates remain the same the current coal reserves will last 120 years.<ref name=boyle/> Below is a chart showing where the world's coal reserves are located.

<html><iframe height='525px' width='785px' style='border:1px solid #cccccc' src='http://www.google.com/publicdata/embed?ds=g5eclhudc0afn_&ctype=c&bcs=o&nselm=s&met_y=coal_reserves&met_c=default&ifdim=region&idim=region:AFR:APA:EEA:MEA:NOA:SCA'></iframe></html>

===Natural Gas Reserves===
[[Natural gas]] tends to form with crude oil, although the quantities of oil and gas do not always relate. For example, Saudi Arabia has massive oil reserves but is comparable to the United States in its gas reserves. The world's reserves of natural gas are estimated to be around 6 quadrillion cubic feet, which amounts to 6000 EJ, the same as the world's oil reserves.<ref name="RE1"/> 40% of all conventional natural gas reserves are located in the Middle East, and 30% is in the former Soviet Union.<ref name=boyle/> Below is a chart showing where the world's natural gas reserves are located. Press the play button to see how the natural gas reserves in the world have changed in the past few decades.

<html><iframe height='525px' width='785px' style='border:1px solid #cccccc' src='http://www.google.com/publicdata/embed?ds=g5eclhudc0afn_&ctype=c&strail=false&bcs=o&nselm=s&met_y=gas_reserves&scale_y=lin&ind_y=false&idim=region:AFR:APA:EEA:MEA:NOA:SCA&ifdim=region&ind=false&icfg'></iframe></html>

===Unconventional Fossil Reserves===
:: [[unconventional resource| ''main page'']]
Aside from traditional deposits, there are other places that crude oil and natural gas can be gathered from. Generally speaking these deposits are less economical to mine as they require more advanced technology and more effort to extract and process the fuels for use. Nevertheless, as technologies advance the ability to obtain fossil fuels from these deposits becomes more economic, leading to increased reserves (although the [[resource]] is still decreasing).

There are several different types of unconventional oil reserves. The [[oil sands]] are one example of an unconventional resource as bitumen-soaked sand is dug up and the bitumen is extracted and upgraded to yield crude oil. This process is more labour-intensive than obtaining crude oil from wells, but possible. The province of Alberta alone contains around 1.6 trillion barrels of oil in the oil sands, more than the world's reserves of crude oil. However, only 10% is currently economic to extract.<ref name="RE1"/> Additionally, [[shale oil]] can be obtained by utilizing [[hydraulic fracturing]] to break apart oil shale. The shale is then put under extreme [[pressure]]s and [[temperature]]s to extract oil. Rough estimates put the amount of oil locked into oil shale at 1 trillion barrels in the United States alone, approximately equal to the proven world reserves of liquid crude oil.<ref name="RE1"/>

For natural gas, [[shale gas]], [[tight gas]], and [[coal bed methane]] deposits are all unconventional sources of fossil fuels as they require hydraulic fracturing or water pumping to extract the gas from the deposits.

==References==
{{reflist}}
[[Category:Uploaded]]