| Cornfield Unit G-1-291245 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | Gonzales | 1 | 157K | 440K | Apr 2017 – Aug 2026 |
| Cornfield Unit G-1-297547 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | Gonzales | 1 | 149K | 432K | Oct 2016 – Aug 2026 |
| Cornfield Unit G-1-291238 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | Gonzales | 1 | 148K | 481K | Apr 2017 – Oct 2025 |
| Cozy Corner Unit O-3-22312 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Fayette | 1 | 147K | 363K | Jan 1994 – Aug 2026 |
| Cornfield Unit G-1-297548 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | Gonzales | 1 | 144K | 481K | Oct 2016 – Aug 2026 |
| Four Corners TXL Fee 'A' O-9-18378 | Diamondback E&P LLC only | Spraberry (Trend Area) | Upton | 4 | 137K | 369K | Oct 2013 – Dec 2024 |
| Cornagie, Faye O-10-20992 | P.o.&g. Operating, LLC only | Ward, South | Ward | 11 | 130K | 63.6K | by Jan 1993 – Aug 2026 |
| Corningstone State G-10-300884 | Tog Operating, LLC only | Sandbar (Bone Spring) | Reeves | 1 | 119K | 504K | Oct 2025 – Aug 2026 |
| Cornelious, L. G-3-104080 | Erskine Energy, LLC only | Wadsworth, S. (11100, Res.-B | Matagorda | 1 | 89.6K | 5.46M | by Jan 1993 – Sep 2008 |
| Anna Lee O-14-7638 | Brown & Borelli, Inc. only | Barton Corners (Cleveland, Up.) | Lipscomb | 1 | 86.4K | 806K | Jun 2005 – Aug 2026 |
| Smith Heirs Unit G-3-232250 | Bluestem Natural Gas LLC only | Four Corners (Frio F-28) | Brazoria | 1 | 84.4K | 1.97M | Sep 2007 – Aug 2026 |
| White & Baker -L- O-10-8055 | Acorn Oil & Gas, LLC only | White & Baker | Pecos | 16 | 81.8K | 128K | by Jan 1993 – Aug 2026 |
| Corningstone State G-10-300883 | Tog Operating, LLC only | Sandbar (Bone Spring) | Reeves | 1 | 74.7K | 333K | Oct 2025 – Aug 2026 |
| Corningstone State G-10-300880 | Tog Operating, LLC only | Sandbar (Bone Spring) | Reeves | 1 | 72.7K | 343K | Oct 2025 – Aug 2026 |
| Cornelia O-3-24054 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Fayette | 1 | 71.3K | 311K | Feb 2001 – Jun 2026 |
| Cornegie, Faye, -C- O-10-21106 | P.o.&g. Operating, LLC only | Ward, South | Ward | 10 | 70.8K | 31.6K | by Jan 1993 – Aug 2026 |
| Cornelius, L. O-3-24381 | Rumble Energy LLC only | Wadsworth, S. (Savage 10,100) | Matagorda | 2 | 69.6K | 484K | Jun 2003 – Dec 2023 |
| Devon Cornett O-11-69282 | White Rock Oil & Gas, LLC only | Dust Devil (San Andres) | Gaines | 1 | 65.9K | 13.1K | Sep 2008 – Aug 2026 |
| Cornerstone Unit O-3-19389 | Gaither Petroleum Corporation only | Cornerstone (Clodine) | Fort Bend | 2 | 64.9K | 4.37K | by Jan 1993 – Jun 2005 |
| O'Leary Unit G-3-210096 | Bluestem Natural Gas LLC only | Four Corners (Helmuth A) | Brazoria | 1 | 63K | 1.12M | Apr 2004 – Jul 2020 |
| Corning 29 O-10-43813 | New Height Energy, LLC only | Spraberry (Trend Area) | Howard | 2 | 59.3K | 621K | Feb 2013 – Jun 2026 |
| Dad's Corner O-13-27675 | Cholla Petroleum, Inc. only | Hull-Silk-Sikes (4000) | Archer | 2 | 59.1K | 40 | by Jan 1993 – Jul 1998 |
| Cornelius, L. G-3-147703 | Wagner & Brown, Ltd. only | Wadsworth, S. (11100) | Matagorda | 1 | 54.4K | 3.58M | Oct 1993 – May 2003 |
| Cornersville/Pittsburg Sand/Unit O-6-4103 | Valence Operating Company only | Cornersville (Pittsburg SD) | Franklin | 2 | 54.3K | 74 | by Jan 1993 – Aug 2026 |
| Crump O-11-68753 | Cornerstone Petroleum, LLC only | Rocker -a-, South (Glorieta) | Garza | 7 | 52.5K | 0 | Mar 2005 – Jan 2026 |
| Txi O-3-17122 | Gaither Petroleum Corporation only | Cornerstone, N.E. (Clodine) | Fort Bend | 1 | 50.4K | 2.75K | by Jan 1993 – Mar 2006 |
| Williams, A., Mrs. O-13-7547 | Alcorn, Jerry D. only | Young County Regular | Young | 14 | 50.1K | 23 | by Jan 1993 – Aug 2026 |
| Cornelius North Unit O-8-30814 | Petex only | Just Red Dirt Reef (Palo Pinto) | Haskell | 1 | 49.1K | 10.7K | Oct 2011 – Aug 2026 |
| Alcorn, J. O-13-1621 | DWP Oil & Gas only | Alcorn (Simpson Lime) | Clay | 2 | 44.6K | 35 | by Jan 1993 – Aug 2026 |
| Cornelius, L. G-3-169369 | Erskine Energy, LLC only | Wadsworth, S. (11100) | Matagorda | 1 | 44.6K | 3.06M | May 1998 – Aug 2008 |
| Cornelius O-13-31480 | Olenox Corp. only | Wilbarger County Regular | Wilbarger | 22 | 41.8K | 0 | Dec 2009 – Nov 2023 |
| Cornelius "A" O-3-18715 | Buffco Production Inc. only | Wadsworth (8600) | Matagorda | 1 | 39K | 1.41K | by Jan 1993 – Jun 2006 |
| Wilson, James et al -A- O-1-11877 | Acorn Oil & Gas, LLC only | B B B (Olmos A) | Dimmit | 2 | 38.7K | 2.88K | by Jan 1993 – Mar 2023 |
| Corningstone State G-10-300118 | Tog Operating, LLC only | Sandbar (Bone Spring) | Reeves | 1 | 36.3K | 114K | Jan 2025 – Jul 2026 |
| Cornelius, L. G-3-197613 | Samson Exploration, LLC only | Wadsworth, S. (11100, Res.-B | Matagorda | 1 | 35.7K | 1.54M | Aug 2003 – Nov 2011 |
| Devon Fee G-3-201831 | Bluestem Natural Gas LLC only | Four Corners (13000) | Brazoria | 1 | 33.7K | 4.12M | Feb 2004 – Aug 2026 |
| Cornelius, L. G-3-193858 | Erskine Energy, LLC only | Wadsworth, S. (11100) | Matagorda | 1 | 29.9K | 1.08M | Jan 2003 – Jan 2006 |
| Howett O-1-5226 | Acorn Oil & Gas, LLC only | Dos Arroyos (San Miguel) | Zavala | 4 | 28.3K | 56 | by Jan 1993 – Apr 2024 |
| Baggett, John B. O-1-4280 | Acorn Oil & Gas, LLC only | Big Wells (San Miguel) | Dimmit | 2 | 26.5K | 1.55K | by Jan 1993 – Apr 2024 |
| Myatt Minerals O-3-26502 | Sanchez Oil & Gas Corporation only | Northern Ranch (Cornelius Sand) | Matagorda | 1 | 26.3K | 9.18K | Apr 2014 – Jan 2016 |
| Wilson, C. R. O-11-1911 | Cornerstone Petroleum, LLC only | Garza | Garza | 5 | 25.9K | 106 | by Jan 1993 – Sep 2025 |
| O'Leary Unit G-3-241736 | Davis Gulf Coast, Inc. only | Four Corners (Frio F-23) | Brazoria | 1 | 24.9K | 104K | May 2005 – May 2006 |
| Cornelius, L. G-3-88834 | Erskine Energy, LLC only | Wadsworth, S. (10,200) | Matagorda | 1 | 24.3K | 2.5M | by Jan 1993 – Mar 2005 |
| White & Baker -S- O-10-27013 | Acorn Oil & Gas, LLC only | Walker | Pecos | 3 | 24.1K | 6.86K | by Jan 1993 – Aug 2026 |
| Cozy Corner Unit "A" O-3-22575 | Anadarko E&P Company LP only | Giddings (Austin Chalk-3) | Fayette | 1 | 23.8K | 43.9K | Sep 1994 – Jan 2004 |
| Cornelius, L. G-3-94733 | Rumble Energy LLC only | Wadsworth, S. (11100) | Matagorda | 1 | 23.6K | 1.95M | by Jan 1993 – Feb 2001 |
| Cornelius B G-3-195512 | Rumble Energy LLC only | Wadsworth, S. (10,200) | Matagorda | 1 | 22.4K | 526K | Apr 2003 – May 2005 |
| Gun Barrel Corner A O-13-27559 | CDJ Oil Company, LLC only | A P C (Tannehill) | Knox | 2 | 21.8K | 136 | by Jan 1993 – Jan 2025 |
| Crump O-11-68893 | Cornerstone Petroleum, LLC only | Rocker -a-, South (San Andres) | Garza | 5 | 21.5K | 0 | Feb 2006 – Jan 2026 |
| Cornell O-10-34618 | Pioneer Natural Res. USA, Inc. only | Mid-Mar, East (Strawn) | Midland | 1 | 20.7K | 106K | Sep 1995 – Aug 2023 |