| Symbol | Name | Country | Exchange |
|---|---|---|---|
| APD | Air Products and Chemicals, Inc. | US | NYSE |
| CNX | CONSOL Energy Inc. | US | NYSE |
| FCEL | FuelCell Energy, Inc. | US | NASDAQ |
| FF | FutureFuel Corp. | US | NYSE |
| FTK | Flotek Industries, Inc. | US | NYSE |
| HCC | Warrior Met Coal, Inc. | US | NYSE |
| MEOH | Methanex Corporation | US | NASDAQ |
| MNTK | Montauk Renewables, Inc. | US | NASDAQ |
| NGS | Natural Gas Services Group, Inc. | US | NYSE |
| SSL | Sasol Ltd. | US | NYSE |
| WM | Waste Management, Inc. | US | NYSE |
| BTE | Botala Energy Limited | AU | ASX |
| CRM | Carbon Minerals Limited | AU | ASX |
| EDE | Eden Innovations Ltd | AU | ASX |
| KKO | Kinetiko Energy Ltd | AU | ASX |
| LGI | LGI Limited | AU | ASX |
| MSV | Mitchell Services Ltd | AU | ASX |
| NGY | Nuenergy Gas Ltd | AU | ASX |
| STO | Santos Ltd | AU | ASX |
| TOU | TLOU Energy Ltd | AU | ASX |