Companies listed on the Toronto Stock Exchange (O)
# Companies listed on the Toronto Stock Exchange (O)

## O

| Stock Name orosur | Symbol omi |
| - | - |
| Obsidian Energy Ltd. | OBE |
| OceanaGold Corporation | OGC |
| Olympia Financial Group Inc. | OLY |
| Oncolytics Biotech Inc. | ONC |
| Onex Corporation | OCX |
| Open Text Corporation | OTC |
| Opsens Inc. | OPS |
| Optiva Inc. | OPT |
| Orbit Garant Drilling Inc. | OGD |
| Orea Mining Corp. | OREA |
| Organigram Holdings Inc. | OGI |
| Orla Mining Ltd | OLA |
| Orocobre Limited | ORL |
| Orosur Mining Inc. | OMI |
| Orvana Minerals Corp. | ORV |
| Oryx Petroleum Corporation Limited | OXC |
| Osisko Gold Royalties Ltd | OR |
| Osisko Mining Inc. | OSK |
| Ovintiv Inc. | OVV |
