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 Santanna Energy Services
Indiana Direct Energy Panhandle Eastern Pipe Line Vectrennipsco Santanna Energy Services 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 Santanna Energy Services 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 Santanna Energy Services 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