+Crude oil is a naturally occurring [Fossil Fuel](/wiki/fossil_fuel) and a type of [Petroleum](/wiki/petroleum), formed from the remains of ancient organisms over millions of years. This valuable liquid is refined into various products, fueling transportation and forming the base for countless materials.
+## See also
+- [Oil Refining](/wiki/oil_refining)
+- [Energy](/wiki/energy)
+- [Hydrocarbon](/wiki/hydrocarbon)
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