• Natural gas field facility
    A field facility designed to process natural gas produced from more than one lease for the purpose of recovering condensate from a stream of natural gas; however, some field facilities are designed to recover propane, normal butane, pentanes plus, etc., and to control the quality of natural gas to be marketed.

  • Natural gas liquids (NGL)
    Those hydrocarbons in natural gas that are separated from the gas as liquids through the process of absorption, condensation, adsorption, or other methods in gas processing or cycling plants. Generally such liquids consist of propane and heavier hydrocarbons and are commonly referred to as lease condensate, natural gasoline, and liquefied petroleum gases. Natural gas liquids include natural gas plant liquids (primarily ethane, propane, butane, and isobutane; see Natural Gas Plant Liquids) and lease condensate (primarily pentanes produced from natural gas at lease separators and field facilities.

  • Natural gas liquids production
    The volume of natural gas liquids removed from natural gas in lease separators, field facilities, gas processing plants, or cycling plants during the report year.

  • Natural gasoline
    A term used in the gas processing industry to refer to a mixture of liquid hydrocarbons (mostly pentanes and heavier hydrocarbons) extracted from natural gas. It includes isopentane.

  • Nelson, Willie
    Herb-touting, veggie-oil-loving outlaw country legend who in 2005 founded BioWillie to market biodiesel to truck stops around the country.

  • New field discoveries
    The volumes of proved reserves of crude oil, natural gas, and/or natural gas liquids discovered in new fields during the report year.

  • NGL
    Natural Gas Liquids.

  • NGPA
    Natural Gas Policy Act of 1978: Signed into law on November 9, 1978, the NGPA is a framework for the regulation of most facets of the natural gas industry.

  • Nitrogen oxides
    Products of combustion that contribute to the formation of smog and ozone.

  • Nitrogen Rejection Unit (NRU)
    At NRU facilities, the entire gas stream is liquefied to remove impurities then regasified and sent on as pipeline-quality gas.

  • Nodding Donkey
    Pumping unit.