Gas means any mixture of hydrocarbons and noncombustible gases in a gaseous state consisting primarily of methane.
Residue Gas means the residue remaining after raw gas has been subjected to any or all of the following permissible processes:
Greenhouse gas means carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride.
Pipeline means any pipe, pipes, or pipelines used for the intrastate transportation or transmission of any solid, liquid, or gaseous substance, except water.
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;