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  2. Proven reserves - Wikipedia

    en.wikipedia.org/wiki/Proven_reserves

    Proven reserves are a subset of producible 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 ...

  3. World energy resources - Wikipedia

    en.wikipedia.org/wiki/World_energy_resources

    These are the proven energy reserves; real reserves may be four or more times larger. These numbers are very uncertain. Estimating the remaining fossil fuels on the planet depends on a detailed understanding of Earth's crust. With modern drilling technology, we can drill wells in up to 3 km of water to verify the exact composition of the ...

  4. List of countries by proven oil reserves - Wikipedia

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

    Proven oil reserves are those quantities of petroleum which, by analysis of geological and engineering data, can be estimated, with a high degree of confidence, to be commercially recoverable from a given date forward from known reservoirs and under current economic conditions.

  5. Energy economics - Wikipedia

    en.wikipedia.org/wiki/Energy_economics

    Energy economics is a broad scientific subject area which includes topics related to supply and use of energy in societies. [1] Considering the cost of energy services and associated value gives economic meaning to the efficiency at which energy can be produced. [ 2 ]

  6. Oil and gas reserves and resource quantification - Wikipedia

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

    Flaring a flow test, the first outward indication of a new oil or gas discovery, which has the potential to qualify for reserves assessment. Oil and gas reserves denote discovered quantities of crude oil and natural gas (oil or gas fields) that can be profitably produced/recovered from an approved development. Oil and gas reserves tied to ...

  7. Oil shale reserves - Wikipedia

    en.wikipedia.org/wiki/Oil_shale_reserves

    The kerogen content of oil shale formations differs widely, and the economic feasibility of its extraction is highly dependent on international and local costs of oil. Several methods are used to determine the quantity and quality of the products extracted from shale oil. At their best, these methods give an approximate value to its energy ...

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  9. United Nations Framework Classification for Resources

    en.wikipedia.org/wiki/United_Nations_Framework...

    Classification and management of natural resources such as minerals and petroleum are classified using differing schemes. [4] [5] In 1997, UNECE published the United Nations Framework Classification for Reserves and Resources of Solid Fuels and Mineral Commodities (UNFC-1997) as a unifying international system for classifying solid minerals and fuels. [6]