Central Region Core Research Center Administration
| Township: | 30N | Range: | 57E | Section: | 23 | 
| Quarter: | E2NWSW | County: | ROOSEVELT | State: | MT | 
| API Number: | 2508521483 | Operator: | HARPER OIL CO. | Well Name: | 12-23 SUNDVOLD | 
| Latitude: | 48.3368289 | Longitude: | -104.2768848 | Coordinate Source: | FROM STATE RECORDS | 
| Minimum Depth: | 4000 | Maximum Depth: | 8925 | Security Flag: |