Petroleum means the crude oil removed from the earth and the oils derived from tar sands, shale, and coal.
Liquefied petroleum gas means a mixture of light hydrocarbons (predominantly propane, butane) that is gaseous under conditions of ambient temperature and pressure and that is maintained in a liquid state by an increase of pressure or lowering of temperature;
Natural Gas Liquids means those hydrocarbon components that can be recovered from natural gas as a liquid including, but not limited to, ethane, propane, butanes, pentanes plus, and condensates;
Crude Petroleum means the direct product of oil wells or a mixture of the indirect products transportable like the direct products and containing not more than two percent (2%) of sediment, water, and other impurities.