This is a list of natural gas companies in the United States.
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List
- Alabama -
- Spire
- Alaska -
- Enstar Natural Gas,
- Fairbanks Natural Gas
- Arizona –
- Southwest Gas Corporation
- Transwestern Pipeline
- Arkansas -
- Chesapeake Operating Inc
- CenterPoint Energy Gas Transmission
- Kinder Morgan, Inc.
- Mississippi River Transmission
- SourceGas Arkansas Inc.
- Spectra Energy, 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
- 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
- District of Columbia –
- Washington Gas
- Florida – metl
- Florida Gas Transmission Company,
- Mirabito Gas
- TECO Peoples Gas
- Florida Public Utilities
- Lake Apopka Natural Gas
- Georgia –
- Southern Company Gas,
- Gas South
- Hawaii -
- Hawai'i Gas
- Kansas –
- Aquila, Inc.
- Atmos Energy
- Kansas Gas Service
- Panhandle Eastern Pipe Line
- Xcel Energy
- Black Hills Energy
- Kentucky –
- Atmos Energy
- EQT Corporation
- Columbia Gas
- People's Gas
- Chesapeake Energy
- 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
- Vectren nipsco
- 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
- 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 Corporation
- 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
- 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 –
- Chesapeake Energy
- Oklahoma Gas & Electric
- Oklahoma Natural Gas
- ONEOK
- Xcel Energy
- Arkansas Oklahoma Gas Corporation
- Oregon –
- Avista Utilities
- Northwest Natural Gas
- Cascade Natural Gas
- Pennsylvania –
- CNX Resources
- Direct Energy
- EQT Corporation
- National Fuel Gas
- PECO Energy Company
- Peoples Natural Gas
- Philadelphia Gas Works
- UGI
- Rhode Island –
- National Grid USA - Columbia Gas of Pennsylvania
- 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
- SiEnerg
- Oro Negro
- Lewis Energy
- CenterPoint Energy Florida Gas Transmission Company
- ConocoPhillips
- CoServ Gas
- Direct Energy
- Gulf South Pipe Line
- Patara Oil & Gas LLC
- 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.