| 105929 | Facilities | 1425723 | Letter from Colorado Interstate Gas to COGCC | 14235 | 8/22/1978 | Download |
| 105929 | Facilities | 1425724 | Letter from COGCC to Colorado Interstate Gas | 34363 | 8/10/1978 | Download |
| 105929 | Facilities | 846131 | Analytical Data | 40011 | 9/29/1954 | Download |