| Columbus Field Unit G-3-207033 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 55.3K | 110K | Dec 2004 – Aug 2026 |
| Columbus Field Unit G-3-169484 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 54.1K | 914K | Jul 1998 – Aug 2024 |
| Columbus Field Unit G-3-171273 | Devon Energy Production Co, L.P. only | Columbus (Consolidated) | Colorado | 1 | 29.5K | 1.09M | Oct 1998 – Feb 2006 |
| Columbus Field Unit G-3-129021 | Mitchell Energy Company L.P. only | Columbus | Colorado | 1 | 20.5K | 1.8M | by Jan 1993 – Aug 2001 |
| Columbus Field Unit G-3-171256 | Devon Energy Production Co, L.P. only | Columbus (Consolidated) | Colorado | 1 | 19.9K | 745K | Sep 1998 – Sep 2006 |
| Columbus Field Unit G-3-164037 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 19.6K | 823K | Aug 1997 – Oct 2004 |
| Columbus Field Unit G-3-138600 | OXY USA Inc. only | Columbus (11-D) | Colorado | 1 | 17K | 652K | by Jan 1993 – Feb 1997 |
| Columbus Field Unit G-3-170788 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 14.5K | 831K | Sep 1998 – Aug 2013 |
| Columbus Field Unit G-3-127433 | Mitchell Energy Corporation only | Columbus (11-A) | Colorado | 1 | 13.6K | 252K | by Jan 1993 – Jul 1998 |
| Columbus Field Unit G-3-169593 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 10.3K | 788K | Aug 1998 – Aug 2026 |
| Columbus Field Unit G-3-147736 | OXY USA Inc. only | Columbus ( 8-A) | Colorado | 1 | 10.3K | 281K | Nov 1993 – Oct 1994 |
| Columbus Field Unit G-3-179446 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 7.59K | 976K | Jul 2000 – Aug 2026 |
| Columbus Field Unit G-3-174913 | Devon Energy Production Co, L.P. only | Columbus (Consolidated) | Colorado | 1 | 7.21K | 275K | Sep 1999 – Sep 2006 |
| Columbus Field Unit G-3-5816 | Devon Energy Production Co, L.P. only | Columbus (Consolidated) | Colorado | 1 | 7.02K | 445K | by Jan 1993 – Apr 2005 |
| Columbus Field Unit G-3-129342 | Mitchell Energy Corporation only | Columbus ( 7-E) | Colorado | 1 | 5.83K | 438K | by Jan 1993 – Mar 1999 |
| Columbus Field Unit G-3-129078 | Mitchell Energy Company L.P. only | Columbus ( 6-C, South) | Colorado | 1 | 5.72K | 446K | Jul 1994 – Aug 2001 |
| Columbus Field Unit G-3-179740 | Devon Energy Operating Co., L.P. only | Columbus (Consolidated) | Colorado | 1 | 5.49K | 94.4K | Aug 2000 – Apr 2002 |
| Columbus Field Unit G-3-175650 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 4.92K | 345K | Jan 2000 – Aug 2026 |
| Columbus Field Unit G-3-173112 | Daylight Petroleum LLC only | Columbus (Consolidated) | Colorado | 1 | 4.76K | 252K | Apr 1999 – Sep 2019 |
| Columbus Field Unit G-3-174793 | Devon Energy Production Co, L.P. only | Columbus (Consolidated) | Colorado | 1 | 4.5K | 123K | Aug 1999 – Dec 2004 |
| Columbus Field Unit G-3-173562 | Devon Energy Operating Co., L.P. only | Columbus (Consolidated) | Colorado | 1 | 4.3K | 311K | May 1999 – Jul 2002 |
| Columbus Field Unit G-3-171940 | Devon Energy Production Co, L.P. only | Columbus (Consolidated) | Colorado | 1 | 4.26K | 343K | Dec 1998 – May 2005 |
| Columbus Field Unit G-3-40541 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 3.35K | 188K | by Jan 1993 – Nov 2020 |
| Columbus Field Unit G-3-162908 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 3.1K | 678K | Apr 1997 – Nov 2020 |
| Columbus Field Unit G-3-162283 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 2.97K | 267K | Feb 1997 – Sep 2005 |
| Columbus Field Unit G-3-129343 | Mitchell Energy Corporation only | Columbus (11-D & 11-F-S) | Colorado | 1 | 2.95K | 140K | Jun 1993 – May 2000 |
| Columbus Field Unit G-3-137355 | OXY USA Inc. only | Columbus (11-D) | Colorado | 1 | 2.6K | 179K | by Jan 1993 – Apr 1997 |
| Columbus Field Unit G-3-136062 | Mitchell Energy Corporation only | Columbus (12-F) | Colorado | 1 | 2.4K | 90.6K | by Jan 1993 – Jun 1998 |
| Columbus Field Unit G-3-140408 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 2.37K | 90.5K | by Jan 1993 – May 2011 |
| Columbus Field Unit G-3-174920 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 2.28K | 189K | Oct 1999 – Nov 2020 |
| Columbus Field Unit G-3-129401 | Mitchell Energy Company L.P. only | Columbus ( 6-D Wilcox) | Colorado | 1 | 2.24K | 265K | Aug 1993 – Mar 1998 |
| Columbus Field Unit G-3-128976 | Mitchell Energy Company L.P. only | Columbus (5-E Wilcox) | Colorado | 1 | 2.05K | 315K | by Jan 1993 – Dec 1999 |
| Columbus Field Unit G-3-140831 | Mitchell Energy Corporation only | Columbus (11-D) | Colorado | 1 | 1.95K | 45.2K | by Jan 1993 – Sep 1994 |
| Columbus Field Unit G-3-160046 | Mitchell Energy Corporation only | Columbus ( 6-J) | Colorado | 1 | 1.68K | 42.3K | Aug 1996 – May 1999 |
| Columbus Field Unit G-3-41095 | Mitchell Energy Corporation only | Columbus (11-D) | Colorado | 1 | 1.51K | 181K | by Jan 1993 – Jun 2000 |
| Columbus Field Unit G-3-152696 | OXY USA Inc. only | Columbus (10-E Wilcox) | Colorado | 1 | 1.5K | 32.8K | Dec 1994 – Jan 1997 |
| Columbus Field Unit G-3-173531 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 1.41K | 429K | Jun 1999 – Aug 2026 |
| Columbus Field Unit G-3-171332 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 1.3K | 496K | Nov 1998 – Nov 2020 |
| Columbus Field Unit G-3-186919 | Devon Energy Operating Co., L.P. only | Columbus (Consolidated) | Colorado | 1 | 1.16K | 2.77K | Oct 2001 – May 2002 |
| Columbus Field Unit G-3-158731 | Mitchell Energy Corporation only | Columbus ( 7-E) | Colorado | 1 | 1.11K | 72.7K | Apr 1996 – Jul 1998 |
| Columbus Field Unit G-3-290228 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 988 | 144K | Nov 2020 – Aug 2024 |
| Columbus Field Unit G-3-170584 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 915 | 57.1K | Aug 1998 – Apr 2019 |
| Columbus Field Unit G-3-175846 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 827 | 4.21K | Dec 1999 – Oct 2020 |
| Columbus Field Unit G-3-129841 | Mitchell Energy Corporation only | Columbus ( 5-H Wilcox) | Colorado | 1 | 757 | 39.9K | by Jan 1993 – Mar 1995 |
| Columbus Field Unit G-3-41114 | Mitchell Energy Corporation only | Columbus (11-F-N) | Colorado | 1 | 738 | 61.5K | Aug 1993 – Mar 1997 |
| Columbus Field Unit G-3-5791 | Mitchell Energy Corporation only | Columbus ( 7-E) | Colorado | 1 | 556 | 18.2K | Oct 1993 – Aug 1998 |
| Columbus Field Unit G-3-55787 | Mitchell Energy Corporation only | Columbus ( 6-H) | Colorado | 1 | 526 | 75.6K | by Jan 1993 – Jan 1997 |
| Columbus Field Unit G-3-57591 | Mitchell Energy Corporation only | Columbus (6-B Wilcox) | Colorado | 1 | 407 | 51.2K | by Jan 1993 – Mar 1997 |
| Columbus Field Unit G-3-179154 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 362 | 11.6K | Jun 2000 – Feb 2009 |
| Columbus Field Unit G-3-176830 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 232 | 161K | Mar 2000 – Jul 2013 |