A Petroleum is an oily liquid that can be pumped from the Earth and used to make items like plastic and gasoline.
Other /More definition:
A Petroleum is a generic term applied to oil and oil products in all forms, such as crude oil, lease condensate, unfinished oils, petroleum products, natural gas plant liquids, and non-hydrocarbon compounds blended into finished petroleum products. See crude oil.

-See also:
"Petroleum" is in the NAICS Code "211111"
(Crude Petroleum and Natural Gas ExtractionOil shale mining and/or beneficiating)


"Petroleum" is in the CPC Code "1201"
Petroleum oils and oils obtained from bituminous minerals, crude

"Petroleum" is in the HS Code "2709"
Petroleum Oils And Obtained From Bituminous Minerals, Crude.

"Petroleum" is in the UNSPSC Code "13111060"
Petroleum resins

"Petroleum" is in the ISIC Code "9900"
Extra-territorial organizations and bodies
... operation and Development, the Organization the Petroleum Exporting Countries, the European Communit ...