| 117469 | Facilities | 696324 | Notice of Inspection | 27613 | 11/3/1986 | Download |
| 117469 | Facilities | 696325 | PRODUCTION REPORT | 15398 | 12/31/1989 | Download |
| 117469 | Facilities | 696315 | Water Well Information | 70183 | 6/26/1987 | Download |
| 117469 | Facilities | 696319 | Sundry Notice | 136821 | 4/2/1990 | Download |
| 117469 | Facilities | 696313 | Lease Inspection | 20450 | 11/20/1990 | Download |
| 117469 | Facilities | 696314 | Evaluation Worksheet | 42733 | 6/25/1990 | Download |
| 117469 | Facilities | 696317 | Letter from Heartland to COGCC | 15027 | 4/17/1990 | Download |
| 117469 | Facilities | 696312 | Conditions of Approval | 18451 | 6/25/1990 | Download |
| 117469 | Facilities | 696310 | Earthen Pit Permit | 34360 | 6/25/1990 | Download |
| 117469 | Facilities | 696327 | Lease Inspection | 19464 | 10/18/1989 | Download |
| 117469 | Facilities | 2087481 | Pit Evaluation Form | 1777455 | 6/27/2019 | Download |