This is a list of natural gas companies in the United States.

States

Alabama

  • Spire

Alaska

  • Enstar Natural Gas
  • Fairbanks Natural Gas

Arizona

  • Southwest Gas Corporation
  • Transwestern Pipeline

Arkansas

  • CenterPoint Energy Gas Transmission
  • Kinder Morgan, Inc.
  • Mississippi River Transmission
  • SourceGas Arkansas Inc.
  • Spectra Energy, Inc.
  • Summit Utilities, Inc.
  • Arkansas Oklahoma Gas Corporation
  • Black Hills Energy

California

  • City of Long Beach Gas & Oil Department
  • City of Palo Alto Gas Department
  • Pacific Gas & Electric
  • San Diego Gas & Electric
  • Southern California Gas
  • Sierra Pacific - Nevada & California, Southwest Gas Corporation
  • Vernon Light & Power Department
  • Clean Energy

Colorado

  • Atmos Energy
  • Colorado Natural Gas
  • El Paso Natural Gas
  • Patara Oil & Gas
  • SourceGas Distribution, LLC
  • Transwestern Pipeline
  • Xcel Energy
  • Murex Petroleum
  • Black Hills Energy

Connecticut

  • City of Norwich Department of Public Utilities
  • Eversource Energy (via Yankee Gas)
  • UIL Holdings Corp (via Connecticut Natural Gas and Southern Connecticut Gas),

Delaware

  • Chesapeake Utilities
  • Delmarva Power

Florida

  • Florida Gas Transmission Company
  • Mirabito Gas
  • TECO Peoples Gas
  • Florida Public Utilities
  • Lake Apopka Natural Gas

Georgia

  • Southern Company Gas
  • Gas South
  • Liberty Utilities

Hawaii

  • Hawai'i Gas

Kansas

  • Atmos Energy
  • Kansas Gas Service
  • Panhandle Eastern Pipe Line
  • Xcel Energy
  • Black Hills Energy

Kentucky

  • Atmos Energy
  • EQT Corporation
  • Columbia Gas
  • People's Gas

Louisiana

  • Atmos Energy
  • Florida Gas Transmission Company
  • Gulf South Pipe Line
  • Trunkline Gas Company
  • Entergy

Idaho

  • Avista Utilities
  • Intermountain Gas Company

Illinois

  • Direct Energy
  • Ameren Illinois Company
  • Hudson Energy
  • Illinois Gas Transmission
  • Nicor Gas
  • Panhandle Eastern Pipe Line
  • Peoples Gas
  • North Shore Gas
  • Integrys

Indiana

  • Direct Energy
  • Panhandle Eastern Pipe Line
  • Vectrennipsco

Iowa

  • MidAmerican Energy Company
  • Black Hills Energy

Maine

  • Unitil Corp.
  • Bangor Gas
  • Maine Natural Gas
  • Summit Natural Gas

Maryland

  • Columbia Gas of Maryland - Baltimore Gas & Electric
  • Chesapeake Utilities
  • Direct Energy
  • Easton Utilities
  • Northeast Utilities
  • Sandpiper Energy
  • UGI
  • Washington Gas

Massachusetts

  • Berkshire Gas
  • Blackstone Gas Company
  • Colonial Gas
  • Columbia Gas of Massachusetts
  • Eversource Energy
  • Holyoke Gas and Electric
  • Liberty Utilities
  • Middleboro Municipal Gas and Electric Department
  • National Grid
  • Unitil Corporation
  • Wakefield Municipal Gas and Light Department
  • Westfield Gas and Electric Department

Michigan

  • Consumers Energy
  • Direct Energy
  • DTE Energy
  • Semco Energy
  • TransCanada
  • We Energies

Mississippi

  • Atmos Energy

Missouri

  • Missouri Gas Energy
  • Summit Natural Gas
  • City Utilities of Springfield
  • Laclede Gas
  • Spire Inc

Minnesota

  • Xcel Energy
  • CenterPoint Energy

Montana

  • Northwestern Corporation
  • MDU Resources
  • Energy West Montana
  • Cut Bank Gas Company

Nebraska

  • Metropolitan Utilities District
  • SourceGas Distribution, LLC
  • Northwestern Corporation
  • Black Hills Energy

Nevada

  • NV Energy
  • Southwest Gas

New Jersey

  • Direct Energy
  • Elizabethtown Gas
  • New Jersey Resources
  • New Jersey Natural
  • Public Service Enterprise Group
  • South Jersey Industries
  • Public Service Electric and Gas (PSE&G)

New Hampshire

  • Eversource Energy
  • Unitil Corporation
  • Liberty Utilities

New Mexico

  • Transwestern Pipeline
  • Xcel Energy
  • New Mexico Gas (NMG)

New York

  • Central Hudson Gas & Electric
  • Corning Natural Gas
  • Direct Energy
  • National Fuel Gas
  • National Grid USA
  • Consolidated Edison
  • Rochester Gas & Electric (RG&E)
  • New York State Electric & Gas (NYSEG)
  • St. Lawrence Gas

North Carolina

  • Duke Energy
  • Piedmont Natural Gas
  • XOOM Energy
  • Public Service of North Carolina (PSNC)
  • Frontier Natural Gas,

North Dakota

  • Xcel Energy
  • MDU Resources

Ohio

  • Direct Energy
  • East Ohio Gas
  • Duke Energy
  • Nisource
  • Columbia Gas of Ohio
  • Dominion Energy
  • Northeast Ohio Natural Gas
  • Orwell Natural Gas

Oklahoma

  • Expand Energy
  • Summit Utilities, Inc.
  • Oklahoma Gas & Electric
  • Oklahoma Natural Gas
  • ONEOK
  • Williams Companies
  • Xcel Energy
  • Arkansas Oklahoma Gas Corporation

Oregon

  • Avista Utilities
  • Northwest Natural Gas
  • Cascade Natural Gas

New Hampshire

  • Liberty Utilities

Pennsylvania

  • CNX Resources
  • Columbia Gas
  • Direct Energy
  • EQT Corporation
  • National Fuel Gas
  • PECO Energy Company
  • Peoples Natural Gas
  • Philadelphia Gas Works
  • UGI

Rhode Island

  • Providence Gas Company (National Grid plc)
  • Rhode Island Energy

South Carolina

  • Piedmont Natural Gas
  • SCANA Corporation
  • Lancaster County Natural Gas Authority
  • Patriots Energy Group
  • York County Gas Authority
  • Chester County Gas Authority
  • Fountain Inn Natural Gas
  • SCE&G
  • Dominion Carolina Gas Transmission
  • Fort Hill Natural Gas Authority

South Dakota

  • Xcel Energy
  • Northwestern Corporation
  • MDU Resources

Tennessee

  • Atmos Energy
  • Piedmont Natural Gas

Texas

  • Atmos Energy
  • Texas Gas Service
  • Summit Utilities, Inc.
  • SiEnerg
  • Oro Negro
  • Lewis Energy
  • CenterPoint Energy
  • ConocoPhillips
  • CoServ Gas
  • Direct Energy
  • Gulf South Pipeline
  • Patara Oil & Gas
  • Texas Natural Gas
  • Transwestern Pipeline
  • J-W Operating Company
  • Xcel Energy
  • Talos Energy

Utah

  • Dominion Energy

Vermont

  • Énergir

Virginia

  • Atmos Energy
  • EQT Corporation
  • Washington Gas
  • Virginia Natural Gas
  • Columbia Gas of Virginia
  • Dominion Energy
  • Columbia Gas Transmission
  • Appalachian Natural Gas Distribution Company
  • Roanoke Gas Company
  • Carroll County Natural Gas
  • CNX Resources
  • Richmond Gas Works

Washington

  • Avista Utilities
  • Puget Sound Energy
  • Cascade Natural Gas
  • Northwest Natural Gas - City of Ellensburg

West Virginia

  • EQT Corporation
  • NiSource
  • Bluefield Natural Gas
  • Mountaineer Gas Company

Wisconsin

  • We Energies
  • Xcel Energy
  • Madison Gas & Electric

Wyoming

  • SourceGas Distribution, LLC
  • Dominion Energy
  • MDU Resources
  • Black Hills Energy

Territories

District of Columbia

  • Washington Gas

Puerto Rico

  • EcoEléctrica

See also

  • Lists of public utilities