natural decline rate

the base production decline rate of an oil or gas field without intervention to enhance production.

natural gas liquids

the liquid or liquefied hydrocarbons produced in the manufacture, purification and stabilisation of natural gas. These are those portions of natural gas which are recovered as liquids in separators, field facilities, or gas processing plants. NGLs include but are not limited to ethane, propane, butane, pentane, natural gasoline and condensates.

non-energy use

fuels used for chemical feedstocks and non-energy products. Examples of non-energy products include lubricants, paraffin waxes, coal tars, and oils used as timber preservatives.

non-binding target

allows a country to sell allowances if its emissions are below the target, but does not oblige it to buy allowances if emissions are above.

nuclear

the primary heat equivalent of the electricity produced by a nuclear plant with an average thermal efficiency of 33%.