vocabulary:
  name: Southwestern Energy Vocabulary
  description: >-
    Domain vocabulary for Southwestern Energy Company (SWN), covering natural gas
    exploration, production, reservoir engineering, shale operations, and energy
    sector financial terminology. Following the 2024 merger, SWN operates as part
    of Expand Energy Corporation, focused on the Marcellus and Haynesville shale plays.
  tags:
    - Natural Gas
    - Oil And Gas
    - Energy
    - Fortune 500
  terms:
    - term: E&P (Exploration and Production)
      definition: >-
        The upstream segment of the natural gas industry involving the search for
        hydrocarbon deposits and their extraction from subsurface reservoirs.
      category: Operations
    - term: Marcellus Shale
      definition: >-
        A sedimentary rock formation spanning West Virginia, Pennsylvania, and New York
        that is one of the primary natural gas producing formations in the United States
        and a major area of SWN's operations.
      category: Geology
    - term: Haynesville Shale
      definition: >-
        A natural gas-rich shale formation in northwestern Louisiana and eastern Texas
        that represents a key producing area for Southwestern Energy's operations.
      category: Geology
    - term: Proved Reserves
      definition: >-
        Quantities of natural gas estimated with reasonable certainty to be commercially
        recoverable from known reservoirs under existing economic conditions, as reported
        in SEC filings.
      category: Reserves
    - term: Bcf (Billion Cubic Feet)
      definition: >-
        A unit of volume for natural gas equal to one billion cubic feet, used to
        measure production volumes and reserve estimates.
      category: Measurement
    - term: Tcf (Trillion Cubic Feet)
      definition: >-
        A unit of volume for natural gas equal to one trillion cubic feet, typically
        used to express total reserve estimates.
      category: Measurement
    - term: Horizontal Drilling
      definition: >-
        A well drilling technique that deviates from vertical to horizontal to
        maximize the wellbore contact with a thin horizontal shale layer, increasing
        production efficiency.
      category: Operations
    - term: Hydraulic Fracturing
      definition: >-
        A stimulation technique that pumps fluid at high pressure into a rock formation
        to create fractures, enabling natural gas to flow more freely to the wellbore.
      category: Operations
    - term: Well Pad
      definition: >-
        A prepared surface site from which multiple horizontal wells are drilled,
        reducing land surface disturbance and operational costs.
      category: Infrastructure
    - term: NGL (Natural Gas Liquids)
      definition: >-
        Hydrocarbon components that can be separated from natural gas in a processing
        plant, including ethane, propane, butane, and natural gasoline.
      category: Commodities
    - term: Production Rate
      definition: >-
        The volume of natural gas produced per unit of time from a well or field,
        typically measured in Mcfe/d (thousand cubic feet equivalent per day).
      category: Operations
    - term: Expand Energy
      definition: >-
        The combined company formed from the October 2024 merger of Chesapeake Energy
        and Southwestern Energy, one of the largest natural gas producers in the US.
      category: Corporate
    - term: Hedging
      definition: >-
        Financial instruments used by SWN to reduce exposure to commodity price
        volatility, locking in revenue on a portion of future production.
      category: Finance
    - term: Royalty Interest
      definition: >-
        A non-operating interest in an oil and gas lease entitling the holder to a
        percentage of production revenue without bearing drilling or operating costs.
      category: Legal
    - term: Completion
      definition: >-
        The process of making a drilled well ready for production, including casing,
        cementing, perforating, and hydraulic fracturing operations.
      category: Operations