Central Region Core Research Center Administration
| Township: | 1S | Range: | 3W | Section: | 20 |
| Quarter: | NWNE | County: | DUCHESNE | State: | UT |
| API Number: | 4301330193 | Operator: | MAPCO INC | Well Name: | 1-20 MARSHALL |
| Latitude: | 40.38688 | Longitude: | -110.24295 | Coordinate Source: | FROM STATE RECORDS |
| Minimum Depth: | 3010 | Maximum Depth: | 15320 | Security Flag: |