| Symbol | Name | Country | Exchange |
|---|---|---|---|
| DDH | DDH 1 Drilling Pty Ltd | AU | ASX |
| DDHLF | Ddh1 Ltd | US | OTC |
| HGHAF | High Arctic Energy Services Inc | US | OTC |
| SBOEY | Schoeller-Bleckmann Oilfield Equipment Ag [Austr | US | OTC |
| WFTUF | Weatherford International Plc Warrants[13/12/202 | US | OTC |