| Symbol | Name | Country | Exchange |
|---|---|---|---|
| NEXT | NextDecade Corporation | US | NASDAQ |
| NGS | Natural Gas Services Group, Inc. | US | NYSE |
| ESOA | Energy Services Acquisition Corp | US | OTC |
| PSSWF | PSI Software Ag | US | OTC |
| ACPE | ACP Energy Plc | UK | LSE |
| 5TJ | Far East Group Limited | SG | SG |
| PSAN | PSI Software AG | DE | XETRA |
| DURCF | DURCF | US | US |
| 7EX | Enerflex Ltd | DE | F |