| Burda Collins Unit O-2-10105 | Devon Energy Production Co, L.P. only | Eagleville (Eagle Ford-2) | Karnes | 20 | 5.64M | 7.62M | Jul 2012 – Jul 2026 |
| Collins O-10-44205 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 2 | 935K | 1.54M | Jun 2013 – Jul 2026 |
| Degan Sand Unit O-13-15475 | BLS Production Co., Inc. only | Collinsville, SE. (4100 Degan) | Grayson | 16 | 596K | 21 | Jan 1993 – Jul 2026 |
| Burda Collins Unit O-2-11702 | Devon Energy Production Co, L.P. only | Sugarkane (Austin Chalk) | Karnes | 2 | 473K | 878K | Oct 2018 – Jul 2026 |
| Collins EF Unit O-3-27545 | Wildfire Energy Operating LLC only | Giddings (Eagleford) | Burleson | 1 | 279K | 61.1K | Mar 2019 – Jul 2026 |
| Collins State A O-10-62849 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 264K | 390K | Dec 2024 – Jul 2026 |
| Collins Unit O-1-17906 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | Gonzales | 1 | 240K | 117K | Jun 2014 – Jul 2026 |
| Collins State B O-10-62856 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 194K | 336K | Nov 2024 – Jul 2026 |
| Collins Survey O-6-5883 | Tex-OK Energy, Ltd Partnership only | Trace,north (Woodbine) | Harrison | 6 | 190K | 83 | Jan 1993 – Jul 2026 |
| Grandjean-Collins Unit O-3-22781 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 1 | 173K | 1.31M | Jun 1995 – Jul 2026 |
| Collins, Sallie Unit O-3-23936 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 1 | 151K | 131K | Jan 2001 – Jul 2026 |
| Collins -D- O-10-32529 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 3 | 118K | 343K | Jan 1993 – Oct 2023 |
| Collins Oil Unit O-6-14187 | Diversified Production LLC only | Carthage (Hill, Southwest) | Panola | 1 | 102K | 148K | Oct 2002 – Jul 2026 |
| Collins 8 O-10-29887 | McClure Oil Company, Inc. only | Korman (Canyon Reef) | Howard | 1 | 93.6K | 32.7K | Jan 1993 – Jul 2026 |
| P. H. Collins Unit O-8-27555 | Proco Operating Co., Inc. only | Wagnon (Strawn Granny Sd.) | Palo Pinto | 12 | 80K | 37.5K | Apr 1995 – Jul 2026 |
| Christopher, Lena B. O-13-22384 | BLS Production Co., Inc. only | Collinsville, SE. (3795 Sand) | Grayson | 1 | 78.2K | 21 | Jan 1993 – Jul 2026 |
| FJH Unit O-8-26320 | Arnot, W. G., Jr. only | Collins (Miss.) | Eastland | 2 | 74.5K | 85.7K | Jan 1993 – Sep 2013 |
| Collins, RR - B O-7-8679 | Cali Crude LLC only | East Texas | Gregg | 2 | 73.8K | 21 | Jan 1993 – Jul 2026 |
| Collins O-10-33402 | Kstone Energy, LLC only | U S M (Queen) | Pecos | 3 | 62K | 123K | Jan 1993 – Jul 2026 |
| Collins, Myrtle Unit O-3-13601 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 2 | 60.8K | 861K | Jan 1993 – May 2025 |
| Collins O-10-27710 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 59.9K | 318K | Jan 1993 – Sep 2023 |
| Collins Creek South Unit O-8-27319 | Jacobs, C. E., Co. only | Fort Griffin, N. (Miss) | Shackelford | 1 | 59.7K | 109K | Oct 1994 – Oct 2014 |
| Kavanaugh & Collins O-3-2765 | Texas Operating Partners LLC only | Livingston (Sparta) | — | 1 | 58.7K | 133 | Jan 1993 – Jul 2026 |
| Woodall, C. L. O-13-23707 | H.L. Clark Oil Company LLC only | Collinsville, SE. (4100 Degan) | Grayson | 2 | 55.1K | 24 | Jan 1993 – Jul 2026 |
| Eckert, W. E. O-13-10862 | Grayson Petroleum Company only | Collinsville, East (Strawn 3600) | — | 1 | 53.6K | 21 | Jan 1993 – Jul 2026 |
| Collinsworth "40" O-14-7457 | High River Res Operating, LLC only | Share (Des Moines, Upper) | Ochiltree | 1 | 50.9K | 115K | Jun 2003 – Jul 2026 |
| Christopher Hunt Unit O-13-31890 | BLS Production Co., Inc. only | Collinsville, SE. (3960 Sand) | Grayson | 1 | 50.8K | 0 | Jul 2011 – Jul 2026 |
| Graham, J. H. O-13-2739 | Felderhoff Production Company only | Collinsville, East (Strawn 4000) | — | 1 | 50.4K | 21 | Jan 1993 – Jul 2026 |
| Collins O-2-8121 | Salt Creek Production, Inc. only | New Collins (Hockley) | Live Oak | 1 | 48K | 35.7K | Oct 1995 – Jul 2026 |
| Collins -B- O-10-32236 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 47.6K | 204K | Jan 1993 – Sep 2023 |
| Collins O-2-8313 | Edge Petroleum Oper. Co., Inc. only | Rhomac (4300) | Live Oak | 2 | 46.4K | 56.6K | Oct 1996 – Jul 2002 |
| Collins O-3-14640 | Cirrus Production Company only | Giddings (Buda) | Fayette | 1 | 44.6K | 1.63K | Jan 1993 – Dec 2020 |
| Mullins, Clark O-13-25592 | BKM Production only | Collinsville, SE. (3775 Sand) | Grayson | 2 | 44.6K | 21 | Jan 1993 – Jul 2026 |
| Collins, C. F. Est. -A- O-13-6284 | Rusk Production Inc. only | K-M-A | — | 3 | 43.8K | 20 | Jan 1993 – Jul 2026 |
| Collins Creek North Unit O-8-27216 | Jacobs, C. E., Co. only | Fort Griffin, N. (Miss) | Shackelford | 1 | 42.6K | 44.2K | Jun 1994 – Oct 2014 |
| Collins O-8-26328 | Baron Energy Inc. only | Jones County Regular | Jones | 3 | 41.9K | 20 | Jan 1993 – Jul 2026 |
| Collins O-10-39693 | Kek Exploration LLC only | Walter (Wolfcamp) | Sterling | 1 | 41.6K | 77.7K | Aug 2009 – Jul 2026 |
| Collins O-8-25786 | Interstate Explorations LLC only | Collins (Miss.) | Eastland | 1 | 40.7K | 38.3K | Jan 1993 – Jul 2026 |
| Christopher, Lena B. O-13-18193 | BLS Production Co., Inc. only | Collinsville, SE. (3950 Sand) | Grayson | 3 | 40.1K | 21 | Jan 1993 – Jan 2026 |
| Christopher, Lena B. O-13-32730 | BLS Production Co., Inc. only | Collinsville, SE. (3960 Sand) | Grayson | 1 | 39.3K | 0 | Jul 2013 – Jul 2026 |
| Collins O-10-24374 | Kek Exploration LLC only | Triple C (Miss.) | Sterling | 3 | 38.9K | 135 | Jan 1993 – Jul 2026 |
| Collins -A- O-10-28445 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 3 | 38.2K | 165K | Jan 1993 – Jul 2026 |
| Christopher-Hunt Unit O-13-19878 | Snuggs Oil Company only | Collinsville, SE. (3960 Sand) | Grayson | 1 | 36.8K | 21 | Jan 1993 – Jun 2001 |
| Christopher, Lena B. O-13-21888 | BLS Production Co., Inc. only | Collinsville, SE. (3860 Sand) | Grayson | 1 | 35.9K | 21 | Jan 1993 – Jul 2026 |
| Collins, C. E. O-13-27667 | Rowland Tank Truck Company only | Van Alstyne (Oil Creek) | Grayson | 1 | 35.5K | 34 | Jan 1993 – Jul 2026 |
| Collins, R. R. O-7-8432 | Cali Crude LLC only | East Texas | — | 1 | 34.5K | 21 | Jan 1993 – Jul 2026 |
| Collins, C. W. O-8-10055 | JSK Oilfield Service LLC only | Coleman County Regular | Coleman | 15 | 31.8K | 22 | Jan 1993 – Jul 2026 |
| Collins, B. A. O-3-1045 | Geo Engineering, Inc. only | Copeland Creek (3200 Sand) | Polk | 4 | 31K | 200 | Jan 1993 – Mar 2008 |
| Mullins, Clark O-13-25874 | BKM Production only | Collinsville, SE. (3860 Sand) | Grayson | 1 | 30.4K | 21 | Jan 1993 – Jul 2026 |
| Collins O-10-21669 | Endeavor Energy Resources L.P. only | Spraberry (Trend Area) | Martin | 2 | 30K | 73.2K | Jan 1993 – Aug 2024 |