​​​​​Utility Territories Served​​

Serving 32 States and Growing​​​

Toll Free: 800-495-9880
E-mail: CES_Communications@CenterPointEnergy.com​ ​

​​
Alabama:

​North Alabama Gas

Arizona: ​​Unisource Energy Services
Southwest Gas Corporation
Arkansas: ​

​Arkansas Oklahoma Gas 
​​Black Hills Energy
CenterPoint Energy (Arkla)

California: ​Pacific Gas & Electric (PG&E)
Southern California Gas Company (SoCalgas)
San Diego Gas & Electric
Colorado: Atmos Energy-Colorado
​Xcel Energy (PSCO)
Black Hills Energy
Rocky Mountain Natural Gas LLC
Colorado Natural Gas (Summit Utilities, Inc.)
Colorado Springs Utilities
​Georgia:​Liberty Energy
Illinois: 

Ameren (CIPS, CILCO, IP)                  
Jo Carroll
Nicor  

North Shore  
Peoples Gas Light & Coke
Rock Energy

Indiana:Citizen's Gas
NIPSCO  
Ohio Valley Gas  
Sycamore Gas Company (Lawrenceburg Gas Company)                      
Vectren North  
Vectren South 
Iowa: Alliant  
Black Hills Energy  
MidAmerican Energy
Liberty Utility
Kansas:Atmos Energy- Kansas  
Kansas Gas Service 
Black Hills
Midwest Energy
Kentucky: Atmos Energy-Kentucky
Columbia Gas of Kentucky  
Louisville Gas & Electric 
Duke Energy-Kentucky
Louisiana: 

CenterPoint Energy (Arkla)
CenterPoint Energy (Entex) 

Michigan: 

Consumers Energy  
DTE Energy (MichCon)  
Michigan Gas Utilities
SEMCO Energy Gas Company
Citizen's Gas Fuel Company

Minnesota: CenterPoint Energy  (MN Gas)
Minnesota Energy Resources  
Xcel Energy
Great Plains Natural Gas
Mississippi: Atmos Energy 
CenterPoint Energy (Entex)
Missouri: ​Liberty Utilities
Atmos Energy 
Ameren UE
Laclede Gas Company
Southern MO Natural Gas
Missouri Gas Energy (Laclede Group)
​Montana:​Northwestern Energy
Nebraska: Black Hills Energy  
Metropolitan Utilities District  
Northwestern Energy  
Sourcegas Distribution LLC
MidAmerican Energy
Nevada:Southwest Gas
New Mexico:​El Paso Natural Gas Company
New Mexico Gas Company 
​North Carolina:​Piedmont Natural Gas Company
Ohio: 

​Vectren Energy
Columbia Gas of Ohio (A NiSource Company)
Duke Energy-Ohio
Dominion-East Ohio
Dominion-West Ohio

Oklahoma:CenterPoint Energy  (Arkla)
Oklahoma Natural Gas (ONG)
​​South Carolina:​Piedmont Natural Gas Company
South Dakota: Mid American Energy
Northwestern Energy
Tennessee:​Atmos Energy
Chattanooga Gas Company
East Tennessee Natural Gas
Memphis, Light, Gas & Water
Nashville Gas Company
Texas: 

CenterPoint Energy (Entex)
Texas Gas Services
Westex
Atmos Energy
El Paso Natural Gas

Utah:Questar Gas 
Virginia:   ​Atmos Energy
East Tennessee Natural Gas
Roanoke Gas Company
West Virginia: Mountaineer Gas 
Wisconsin Alliant (Wisconsin Power & Light)
Antigo City Gas Co.
Madison Gas & Electric 

Midwest Natural Gas
St. Croix Gas
Superior Water, Light & Power
Wisconsin Public Service 

WE-Energies (WEC & WGC)
Xcel Energy
Wyoming: ​Black Hills Energy