OEO Ontology

Overview / Open Energy Ontology / Class - crude oil
Label: crude oil
Definition:
Crude oil is a portion of mater of fossil origin comprising a mixture of hydrocarbons and associated impurities, such as sulphur. It exists in the liquid phase under normal surface temperature and pressure and its physical characteristics (density, viscosity, etc.) are highly variable. This category includes field or lease condensate recovered from associated and non-associated gas where it is commingled with the commercial crude oil stream.

Sub classes:
Brent crude
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Definition:
Brent crude is a crude oil that is extracted in the North Sea and traded at ICE London.

Western Texas Intermediate
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Definition:
Western Texas Intermediate (WTI) is a crude oil that is extracted on US territory and traded at NYMEX New York.

Back to the super classes:
portion of matter
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Definition:
A portion of matter is an aggregate of material entities that have a state of matter.

Editor note:
Portions of matter describe mass nouns like e.g. water, air and fuel. Mass nouns are uncountable, but portions of these can be quantified, like 1 glass of water, 1 m³ of air or 1 barrel of fuel. For further explanation please refer to: https://github.com/OpenEnergyPlatform/ontology/wiki/Explanation-on-mass-nouns