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  2. Proven reserves - Wikipedia

    en.wikipedia.org/wiki/Proven_reserves

    Proven reserves (also called measured reserves, 1P, and reserves) is a measure of fossil fuel energy reserves, such as oil and gas reserves and coal reserves. It is defined as the "quantity of energy sources estimated with reasonable certainty, from the analysis of geologic and engineering data, to be recoverable from well established or known ...

  3. List of countries by proven oil reserves - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Because proven reserves include oil recoverable under current economic conditions, nations may see large increases in proven reserves when known, but previously uneconomic deposits become economic to develop. In this way, Canada's proven reserves increased suddenly in 2003 when the oil sands of Alberta were seen to

  4. Oil and gas reserves and resource quantification - Wikipedia

    en.wikipedia.org/wiki/Oil_and_gas_reserves_and...

    Probable additional reserves are attributed to known accumulations and the probabilistic, cumulative sum of proven and probable reserves (with a probability of P50), also referred to in the industry as "2P" (Proven plus Probable) [13] The P50 designation means that there should be at least a 50% chance that the actual volumes recovered will be ...

  5. List of countries by natural gas proven reserves - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Trends in the five countries with largest proven reserves of natural gas, according to the US Energy Information Administration Countries by natural gas proven reserves (2014), based on data from CIA The World Factbook Countries by natural gas and oil proven reserves (2015) World natural gas proven reserves 1960–2012 (OPEC)

  6. Natural gas by country - Wikipedia

    en.wikipedia.org/wiki/Natural_gas_by_country

    Countries by natural gas proven reserves (2014), based on data from The World Factbook. This article includes a chart representing proven reserves, production, consumption, exports and imports of natural gas by country. Below the numbers there is specified which position a country holds by the corresponding parameter.

  7. World energy resources - Wikipedia

    en.wikipedia.org/wiki/World_energy_resources

    Countries by natural gas proven reserves (2014), based on data from The World Factbook. Natural gas is a widely available fossil fuel with estimated 850 000 km 3 in recoverable reserves and at least that much more using enhanced methods to release shale gas. Improvements in technology and wide exploration led to a major increase in recoverable ...

  8. Category:Oil reserves by country - Wikipedia

    en.wikipedia.org/wiki/Category:Oil_reserves_by...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file

  9. Talk:List of countries by proven oil reserves - Wikipedia

    en.wikipedia.org/wiki/Talk:List_of_countries_by...

    The independent nation Republic of Ireland is in fact listed in the World Factbook January 2010 Oil reserves report with 0 proven reserves. The wikipedia contributor who copied the CIA Oil Reserves report into this article included only the 97 entities with proven reserves, and omitted the remaining 169 entities (CIA lingo for countries ...