| ELPC | Companhia Paranaense de Energia |
| HE | Hawaiian Electric Industries |
| CEPU | Central Puerto |
| NWN | Northwest Natural |
| HTO | H2O America |
| WTTR | Select Water Solutions |
| SPH | Suburban Propane Partners |
| EDN | Empresa Distribuidora y Comercializadora Norte Sociedad Anónima |