| AWR | American States Water |
| HE | Hawaiian Electric Industries |
| CTRI | Centuri |
| ELPC | Companhia Paranaense de Energia |
| NWN | Northwest Natural |
| CWT | California Water Service Group |
| WTTR | Select Water Solutions |
| SPH | Suburban Propane Partners |
| EDN | Empresa Distribuidora y Comercializadora Norte Sociedad Anónima |