Central Region Core Research Center Administration
| Township: | 40S | Range: | 22E | Section: | 21 | 
| Quarter: | CNWNE | County: | SAN JUAN | State: | UT | 
| API Number: | 4303711003 | Operator: | SAND OIL | Well Name: | 1 MARK | 
| Latitude: | 37.3003 | Longitude: | -109.50053 | Coordinate Source: | FROM STATE RECORDS | 
| Minimum Depth: | 500 | Maximum Depth: | 5750 | Security Flag: |