en2015-08-18 18:07 PM CESThttp://inspire.ec.europa.eu/codelist/CommodityCodeValue/oil:1http://inspire.ec.europa.eu/codelist/CommodityCodeValue/oilOil or petroleum consists of hydrocarbons of various molecular weights such as alkanes (pentane, hexane, heptane, octane) and other liquid organic compounds, typically recovered from drilling of underground reservoirs. http://en.wikipedia.org/wiki/Petroleum