| 1 | OAKLAND | Mountrail County, ND | Oil & Gas Property | Jan 2026 |
| 2 | OASIS MEIERS 5692 | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 3 | ODDIE 44-7 | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 4 | OGDEN | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 5 | OJA 1 | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 6 | OLD BEAR USA 11-17H | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 7 | OLIVE MAE 7-8-9H | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 8 | OLIVE USA 34-33TFH | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 9 | OLSON 1-12H | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 10 | OLSON 11-14TFH | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 11 | OLSON 12-1H | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 12 | OPPEBOEN | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 13 | ORCA FEDERAL | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 14 | OREN USA 31-6TFH | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 15 | ORION FEDERAL 5792 42-20H | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 16 | ORVIN 31-13TFH | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 17 | OSAGE 5693 43-35T | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 18 | OSCAR THORSON USA 41-8TFH-2B | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 19 | OSPREY FEDERAL | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 20 | OSTLUND 11-14 | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 21 | OVERAL 5892 11-30T | Mountrail County, ND | Oil & Gas Property | Dec 2025 |