Notes
- Proved reserves are generally taken to be those quantities that geological and engineering information indicates with reasonable certainty can be recovered in the future from known reservoirs/deposits under existing economic and operating conditions.
- Source of data - The estimates in this table have been compiled using a combination of primary official sources, third-party data from the OPEC Secretariat, World Oil, Oil & Gas Journal and an independent estimate of Russian reserves based on information in the public domain. Canadian proved reserves include an official estimate of 22.0 billion barrels for oil sands 'under active development'. Reserves include gas condensate and natural gas liquids (NGLs) as well as crude oil.
- Reserves/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.
- Includes crude oil, shale oil, oil sands and NGLs (the liquid content of natural gas where this is recovered separately). Excludes liquid fuels from other sources such as and biomass and coal derivatives.
- When graphed, the unit of oil production and consumption in million tonnes is shown as Mtoe (million tonnes oil equivalent) to enable charting that combines different sources of primary energy.
- Inland demand plus international aviation and marine bunkers and refinery fuel and loss. Fuel ethanol and biodiesel consumption is also included.
- Source: Platts.
For data whose source is Platts, the redistribution and reproduction of this data is strictly prohibited without prior authorization from Platts: email support@platts.com
- 1972-1985 Arabian Light, 1986-2009 Dubai dated.
- 1976-1983 Forties, 1984-2009 Brent dated.
- 1976-1983 Posted WTI prices, 1985-2009 Spot WTI (Cushing) prices.
- Atmospheric distillation capacity on a calendar-day basis.
- Source: Includes data from Parpinelli Tecnon
- Source: Includes data from Energy Security Analysis. Inc. (ESAI).
- Source of data: The estimates in this table have been compiled using a combination of primary official sources, third-party data from Cedigaz and the OPEC Secretariat.
- Trillion equals one million million (1012). 1 trillion cubic feet of natural gas = 26 million tonnes of oil (approximately).
- Excluding gas flared or recycled.
- As far as possible, the data represents standard volumes (measured at 15oC and 1013 mbar); as it is derived directly from tonnes of oil equivalent using an average conversion factor, it does not necessarily equate with gas volumes expressed in specific national terms.
- cif = cost+insurance+freight (average prices).
- Price is for NBP Day-Ahead Index. Source: Heren Energy Ltd
- Source: Energy Intelligence Group, Natural Gas Week. .
- Commercial solid fuels only, i.e. bituminous coal and anthracite (hard coal), and lignite and brown (sub-bituminous) coal.
- Source: McCloskey Coal Information Service. Prices for 1990-2000 are the average of the monthly marker, 2001-2009 the average of weekly prices.
- Prices are for CAPP 12,500 BTU, 1.2 SO2 coal, fob. Prices for 1990-2000 are by coal price publication date, 2001-2009 by coal price assessment date.
- Source: Platts
- Based on gross generation and not accounting for cross border electricity supply. Converted on the basis of thermal equivalence assuming 38% conversion efficiency in a modern thermal power station.
- Primary energy comprises commercially traded fuels only. Excluded, therefore, are fuels such as wood, peat and animal waste which, though important in many countries, are unreliably documented in terms of consumption statistics. Also excluded are wind, geothermal and solar power generation.
- Input to primary distillation units only
- Based on gross output
- Oil consumption is measured in million tonnes; other fuels in million tonnes of oil equivalent.
- Average German Import price Source: 1984-1990 German Federal Statistical Office 1991-2009 German Federal Office of Economics and Export Control (BAFA).
Statistical Review 2010
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