​​​​​Utility Territories Served​​

Serving 20 states and growing​​​

​​
Arkansas: ​​Arkansas Oklahoma Gas 
​​Arkansas​ Western Gas  
CenterPoint Energy
Colorado: ​Xcel Energy (PSCO)
Atmos Energy 
Illinois: AmerenIL                    
Nicor  
North Shore  
Peoples Gas Light & Coke
Indiana:Citizens  
Fountaintown Gas  
NIPSCO  
Ohio Valley Gas  
Sycamore Gas Company                        
Vectren North  
Vectren South 
Iowa: Alliant  
Black Hills Energy  
MidAmerican Energy
Kansas:Atmos Energy  
Kansas Gas Service 
Black Hills Energy 
Kentucky: Atmos Energy  
Columbia Gas of Kentucky  
Louisville Gas & Electric 
Louisiana: CenterPoint Energy 
Michigan: Consumers Energy  
DTE MichCon  
Michigan Gas Utilities
Minnesota: CenterPoint Energy  
Minnesota Energy Resources  
Xcel Energy
Mississippi: Atmos Energy 
CenterPoint Energy
Missouri: Atmos Energy 
AmerenMO
Laclede Gas Company
Nebraska: Black Hills Energy  
Metropolitan Utility District  
Northwestern Energy  
SourceGas 
Ohio: (direct pipeline connections) 
Oklahoma:CenterPoint Energy  
Oklahoma Natural Gas 
South Dakota: Northwestern Energy
Texas: Atmos Energy  
CenterPoint Energy
West Virginia: Mountaineer Gas 
Wisconsin Alliant 
Madison Gas & Electric 
Wisconsin Public Service 
WE Energies
Wyoming: SourceGas ​​​