Energy Policy

Volume 38, Issue 8, August 2010, Pages 4743-4749

Forum
The status of conventional world oil reserves—Hype or cause for concern?

Abstract

The status of world oil reserves is a contentious issue, polarised between advocates of peak oil who believe production will soon decline, and major oil companies that say there is enough oil to last for decades.

In reality, much of the disagreement can be resolved through clear definition of the grade, type, and reporting framework used to estimate oil reserve volumes. While there is certainly vast amounts of fossil fuel resources left in the ground, the volume of oil that can be commercially exploited at prices the global economy has become accustomed to is limited and will soon decline. The result is that oil may soon shift from a demand-led market to a supply constrained market.

The capacity to meet the services provided by future liquid fuel demand is contingent upon the rapid and immediate diversification of the liquid fuel mix, the transition to alternative energy carriers where appropriate, and demand side measures such as behavioural change and adaptation. The successful transition to a poly-fuel economy will also be judged on the adequate mitigation of environmental and social costs.

Keywords

Liquid fuels
Peak oil
Conventional oil

Select terms and abbreviations

API
American petroleum institute gravity (141.5/specific gravity—131.5)
BPSR
BP statistical review
Conventional oil
Oil that is less dense than water (above 10° API)
Gb
giga barrel (one billion barrels)
Giant oil field
contains 0.5 Gb of 2P conventional oil reserves
IEA
international energy outlook
Information agencies
organisations that republish data from reporting agencies (some times with small amendments)
NGL
natural gas liquids, the liquid or liquefied hydrocarbons produced in the manufacture, purification and stabilisation of natural gas
OGJ
oil and gas journal
OPEC
organisation of the petroleum exporting countries
Reporting agencies
organisations that gather oil reserve data from producers
Reserves
commercially exploitable oil that is in-situ
Super-giant oil field
contains 5 Gb of 2P conventional oil reserves
Unconventional oil
oil that is below 10° API
Ultimate recoverable reserves (URR)
The total volume of reserves expected to be recovered, past and present
WEO 2008
world energy outlook 2008
WO
world oil
1P
‘proven reserves+P90’
2P
‘proven+probable reserves’=P50
3P
‘proven+probable+possible’=P10
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