| University 3-310 PU O-9-19544 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Upton | 6 | 2.62M | 5.07M | Mar 2017 – Apr 2026 |
| River Ranch -a-/Williams State U O-2-9301 | T-C Oil Company, LLC only | Anaqua (3100) | Refugio | 12 | 1.99M | 509K | Nov 2008 – Apr 2026 |
| Comancheros 19-31 3103 O-10-51898 | XTO Energy Inc. only | Spraberry (Trend Area) R 40 Exc | Midland | 3 | 1.63M | 5.32M | Jan 2019 – Apr 2026 |
| Comancheros 19-31 3101 O-10-51885 | XTO Energy Inc. only | Spraberry (Trend Area) R 40 Exc | Midland | 3 | 1.62M | 4.49M | Jan 2019 – Apr 2026 |
| Comancheros 19-31 3104 O-10-51899 | XTO Energy Inc. only | Spraberry (Trend Area) R 40 Exc | Midland | 2 | 1.18M | 3.56M | Jan 2019 – Apr 2026 |
| O'Connor -H- O-2-9321 | T-C Oil Company, LLC only | Anaqua (3100) | Refugio | 7 | 987K | 280K | May 2009 – Apr 2026 |
| Comancheros 19-31 3102 O-10-51837 | XTO Energy Inc. only | Spraberry (Trend Area) R 40 Exc | Midland | 3 | 965K | 4.3M | Jan 2019 – Apr 2026 |
| Tatia 0310 I O-10-54778 | Diamondback E&P LLC only | Spraberry (Trend Area) | Ector | 3 | 852K | 774K | Jan 2020 – Apr 2026 |
| River Ranch -B- State Unit O-2-9357 | T-C Oil Company, LLC only | Anaqua (3100) | Refugio | 6 | 701K | 104K | Nov 2009 – Mar 2021 |
| Sixteen Penny Nail 310 O-10-49967 | Oxyrock Operating, LLC only | Spraberry (Trend Area) | Martin | 3 | 694K | 1.89M | Nov 2017 – Apr 2026 |
| Tatia 0310 A O-10-57266 | Diamondback E&P LLC only | Spraberry (Trend Area) | Ector | 3 | 640K | 1.02M | Apr 2022 – Apr 2026 |
| Sixteen Penny Nail 310C O-10-49986 | Oxyrock Operating, LLC only | Spraberry (Trend Area) | Martin | 3 | 638K | 2.09M | Nov 2017 – Apr 2026 |
| Sixteen Penny Nail 310B O-10-49959 | Oxyrock Operating, LLC only | Spraberry (Trend Area) | Martin | 3 | 480K | 1.89M | Dec 2017 – Apr 2026 |
| Lopez O-4-13295 | Atlas Operating LLC only | Encinitas (Frio 7310) | Brooks | 2 | 378K | 347K | Feb 2005 – Mar 2026 |
| TSL 33100/TR 48/ G-4-180005 | White Marlin Operating Co, LLC only | Encinal Channel (FB-2A, M-4) | Nueces | 1 | 368K | 10.8M | Sep 2000 – Oct 2022 |
| Tatia 0310 D O-10-57512 | Diamondback E&P LLC only | Spraberry (Trend Area) | Ector | 1 | 344K | 421K | Apr 2022 – Apr 2026 |
| Schorp 310 O-1-20791 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 299K | 158K | May 2022 – Mar 2026 |
| Sixteen Penny Nail 310A O-10-49958 | Oxyrock Operating, LLC only | Spraberry (Trend Area) | Martin | 2 | 295K | 1.41M | Dec 2017 – Apr 2026 |
| Big Bertha 0310 C O-9-22959 | Firebird Energy II LLC only | Spraberry (Trend Area) | Upton | 2 | 274K | 438K | Mar 2025 – Apr 2026 |
| Comancheros 19-31 3100 O-10-57631 | XTO Energy Inc. only | Spraberry (Trend Area) | Midland | 1 | 249K | 1.14M | Aug 2022 – Apr 2026 |
| Crawford, Leta D. O-9-11259 | Hilcorp Energy Company only | Sixty Seven (Clear Fork 3100) | Irion | 8 | 248K | 300K | Jan 1993 – Nov 2021 |
| Big Bertha 0310 A O-9-22939 | Firebird Energy II LLC only | Spraberry (Trend Area) | Upton | 2 | 238K | 433K | Mar 2025 – Apr 2026 |
| Oconnor, Dennis Etal -D- O-2-4401 | T-C Oil Company, LLC only | Terrell Point (3100) | Goliad | 2 | 237K | 116K | Jan 1993 – Apr 2020 |
| Tatia 0310 C O-10-57237 | Diamondback E&P LLC only | Spraberry (Trend Area) | Ector | 1 | 210K | 297K | May 2022 – Apr 2026 |
| Clay Pasture -B- State Unit O-2-9332 | T-C Oil Company, LLC only | Anaqua (3100) | Refugio | 3 | 207K | 76.4K | Jul 2009 – Apr 2026 |
| Big Bertha 0310 B O-9-22951 | Firebird Energy II LLC only | Spraberry (Trend Area) | Upton | 2 | 200K | 356K | Mar 2025 – Apr 2026 |
| Terrell "A" O-2-8207 | Rincon Petroleum Corporation only | Terrell Point (3100) | Goliad | 2 | 143K | 17.4K | Sep 1996 – Mar 2026 |
| Jethro 19-31 3106 O-9-22645 | XTO Energy Inc. only | Spraberry (Trend Area) | Upton | 1 | 137K | 418K | Jun 2025 – Apr 2026 |
| Amoco Fee O-3-23105 | EP Energy E&P Company, LLC only | Port Arthur (6310 Miocene) | Jefferson | 2 | 134K | 229K | Jul 1996 – May 2002 |
| Big Bertha 0310 O-9-22938 | Firebird Energy II LLC only | Spraberry (Trend Area) | Upton | 1 | 131K | 226K | Mar 2025 – Apr 2026 |
| Big Bertha 0310 E O-9-23528 | Firebird Energy II LLC only | Spraberry (Trend Area) | Upton | 2 | 130K | 145K | Jan 2026 – Apr 2026 |
| Big Bertha 0310 G O-9-23527 | Firebird Energy II LLC only | Spraberry (Trend Area) | Upton | 2 | 127K | 144K | Jan 2026 – Apr 2026 |
| TSL 33105/TR 53/ G-4-195078 | Sabco Operating Company only | Encinal Channel (FB-1A, M-4) | Nueces | 1 | 123K | 5.93M | Feb 2003 – Mar 2010 |
| TSL 33105/TR 53/ G-4-175246 | White Marlin Operating Co, LLC only | Encinal Channel (FB-a, M-4) | Nueces | 1 | 99.9K | 4.06M | Aug 1999 – Dec 2022 |
| State of Texas O-2-8270 | Rincon Petroleum Corporation only | Terrell Point (3100) | Goliad | 1 | 99.7K | 505 | Mar 1997 – Mar 2026 |
| TSL 33100/TR 48/ G-4-180008 | White Marlin Operating Co, LLC only | Encinal Channel (FB-2A, M-3) | Nueces | 1 | 85.2K | 4.06M | Sep 2000 – Nov 2022 |
| TSL 33100 /TR 48/ G-4-196325 | White Marlin Operating Co, LLC only | Encinal Channel (FB-2A, M-4) | Nueces | 1 | 80.4K | 3.16M | Jul 2003 – Aug 2014 |
| TSL 33100/ TR 49/ G-4-200108 | White Marlin Operating Co, LLC only | Encinal Channel (FB-3B, M-4) | Nueces | 1 | 79.2K | 5.02M | Jan 2004 – Apr 2006 |
| Big Bertha 0310 F O-9-23547 | Firebird Energy II LLC only | Spraberry (Trend Area) | Upton | 2 | 77.4K | 113K | Jan 2026 – Apr 2026 |
| Terrell, Etta -A- O-2-6482 | Rincon Petroleum Corporation only | Terrell Point (3100) | Goliad | 1 | 75.3K | 14.2K | Jan 1993 – Jul 2004 |
| TSL 33105/ TR 53/ G-4-187453 | White Marlin Operating Co, LLC only | Encinal Channel (FB-a, M-5) | Nueces | 1 | 72.3K | 5.21M | Oct 2001 – Jul 2022 |
| Mordecai O-13-29191 | Felderhoff Production Company only | McElreath (Strawn 3100) | Grayson | 2 | 69.6K | 0 | Aug 1996 – Apr 2026 |
| Watson, F M, Trust et al "B" G-3-94134 | Atlas Operating LLC only | Rugeley, N. (13100) | Matagorda | 1 | 68.1K | 1.13M | Jan 1993 – Mar 2026 |
| Varley, S. O-13-2829 | Felderhoff Production Company only | McElreath (Strawn 3100) | Grayson | 2 | 67.8K | 19 | Jan 1993 – Apr 2026 |
| P & T Unit O-13-26688 | Felderhoff Production Company only | Tepco (3100 Ellenburger) | Cooke | 1 | 67K | 32 | Jan 1993 – Apr 2026 |
| Braman, P.H. O-13-27443 | Peba Oil & Gas, Inc. only | Bowers (Strawn 3100) | Montague | 5 | 61.2K | 39 | Jan 1993 – Apr 2026 |
| Big Bertha 0310 D O-9-23626 | Firebird Energy II LLC only | Spraberry (Trend Area) | Upton | 1 | 56.7K | 63.3K | Jan 2026 – Apr 2026 |
| Elliott, Laura O-13-2828 | Felderhoff Production Company only | McElreath (Strawn 3100) | Grayson | 2 | 54.9K | 21 | Jan 1993 – Apr 2026 |
| Mayse "A" O-9-11631 | Toc Energy Resources, LLC only | Sixty Seven (Clear Fork 3100) | Irion | 2 | 53.9K | 115K | Jan 1993 – Apr 2026 |
| Farms, I. P. G-3-162899 | Rutherford Oil Corporation only | Chocolate Bayou, S. (13100 Frio) | Brazoria | 1 | 51.4K | 1M | Dec 1996 – Feb 1998 |