Mining, Quarrying
Oil,Gas Extraction


      The Mining sector comprises establishments that extract naturally
occurring mineral solids, such as coal and ores; liquid minerals, such as
crude petroleum; and gases, such as natural gas. The term mining is used in
the broad sense to include quarrying, well operations, beneficiating (e.g.,
crushing, screening, washing, and flotation), and other preparation
customarily performed at the mine site, or as a part of mining activity.
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Mining, Quarrying Oil, Gass Extraction