| Symbol | Name | Country | Exchange |
|---|---|---|---|
| NGG | National Grid Transco, PLC | US | NYSE |
| NEWEN | New England Pwr 6.00 | US | OTC |
| NGGTF | National Grid Transc | US | OTC |
| NG | National Grid plc | UK | LSE |
| NNGF | National Grid PLC | DE | F |
| BHI | Black Hills Corp | DE | F |
| NNGD | National Grid plc | DE | F |
| PWC | Pinnacle West Capital Corporation | DE | F |