Active Natural Gas Utility Service Areas |
| Canada |
Columbia Gas of Kentucky |
| Alberta |
Maryland |
| AltaGas Utility |
Baltimore Gas & Electric |
| Direct Energy Regulated Services North |
Washington Gas Light - MD |
| Direct Energy Regulated Services South |
Michigan |
| British Columbia |
Consumers Energy Michigan |
| FortisBC-Columbia |
Michigan Consolidated Gas |
| FortisBC-Inland |
New Jersey |
| FortisBC-Lower Mainland |
NJ Natural Gas |
| Manitoba |
NUI Elizabethtown Gas |
| Centra Gas Manitoba |
PSE&G New Jersey |
| Ontario |
South Jersey Gas |
| Enbridge Gas Distribution Inc. |
Ohio |
| Union Gas Eastern Ontario |
Columbia Gas of Ohio |
| Union Gas Northern Ontario |
Dominion East Ohio Gas |
| Union Gas Northwestern Ontario |
Duke Energy (Cincinnati Gas and Electric) |
| Union Gas Southern Ontario |
Vectren Energy Delivery |
| United States |
Pennsylvania |
| Georgia |
Columbia Gas of PA |
| Atlanta Gas Light |
Dominion Peoples |
| Illinois |
PECO |
| Nicor Gas |
UGI Penn Penn Natural Gas |
| North Shore Gas |
Virginia |
| Peoples Gas |
Columbia Gas of Virginia |
| Kentucky |
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