| Hilmer Koopmann a 274 G-2-291965 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 794K | 3.29M | Apr 2022 – Apr 2026 |
| Hilmer Koopmann a 274 G-2-291898 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 736K | 3.48M | Mar 2021 – Apr 2026 |
| Hilmer Koopmann a 274 G-2-291956 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 707K | 3.1M | Apr 2022 – Apr 2026 |
| Hilmer Koopmann a 274 G-2-280750 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 698K | 2.6M | Jul 2016 – Feb 2021 |
| Hilmer Koopmann a 274 G-2-259552 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 669K | 2.67M | Aug 2010 – Apr 2026 |
| Hilmer Koopmann a 274 G-2-280714 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 607K | 2.38M | Jun 2016 – Apr 2026 |
| Hilmer Koopmann a 274 G-2-280856 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 605K | 2.46M | Jun 2016 – Oct 2020 |
| Hilmer Koopmann a 274 G-2-280713 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 580K | 2.2M | Jun 2016 – Oct 2020 |
| Constantan 34-174 (N) G-10-291057 | U.S. Energy Development Corp only | Phantom (Wolfcamp) | Ward | 1 | 563K | 2.94M | Jun 2015 – Apr 2026 |
| State Tract 690/746 & 750 GU G-4-260767 | Orx Resources, L.L.C. only | Tule Lake (Frio Consolidated) | Nueces | 1 | 523K | 2.64M | Mar 2011 – Apr 2026 |
| Chihuahua 2629-74 W G-10-293464 | WPX Energy Permian, LLC only | Phantom (Wolfcamp) | Winkler | 1 | 504K | 1.5M | Nov 2019 – Mar 2026 |
| Hilmer Koopmann a 274 G-2-278316 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 466K | 2.16M | Jul 2015 – Apr 2026 |
| Rainbow Trail 2710-74 E G-10-293468 | WPX Energy Permian, LLC only | Phantom (Wolfcamp) | Winkler | 1 | 460K | 1.43M | Nov 2019 – Mar 2026 |
| Mosquito 1108-74 W G-10-293466 | WPX Energy Permian, LLC only | Phantom (Wolfcamp) | Winkler | 1 | 449K | 1.52M | Nov 2019 – Mar 2026 |
| Rainbow Trail 2710-74 W G-10-293465 | WPX Energy Permian, LLC only | Phantom (Wolfcamp) | Winkler | 1 | 421K | 1.08M | Oct 2019 – Mar 2026 |
| Sugarloaf 74 G-10-283490 | PDC Permian, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 416K | 1.23M | May 2016 – Apr 2026 |
| Hilmer Koopmann a 274 G-2-291964 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 359K | 1.38M | Apr 2022 – Apr 2026 |
| Utl 3748 37A G-10-298514 | Continental Resources, Inc. only | Ruppel (Woodford) | Winkler | 1 | 346K | 8.46M | Mar 2023 – Apr 2026 |
| Sugarloaf 7475 6U G-10-294934 | PDC Permian, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 293K | 1.25M | Oct 2023 – Apr 2026 |
| Sugarloaf 7475 8U G-10-295608 | PDC Permian, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 292K | 1.28M | Oct 2023 – Apr 2026 |
| Sugarloaf 7475 2U G-10-289093 | PDC Permian, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 265K | 1.14M | Mar 2019 – Apr 2026 |
| Sugarloaf 7475 4U G-10-294668 | PDC Permian, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 263K | 987K | Oct 2023 – Apr 2026 |
| Sugarloaf 7475 1U G-10-289118 | PDC Permian, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 262K | 1.11M | Mar 2019 – Apr 2026 |
| State Tract 746A/750A GU G-4-260038 | Orx Resources, L.L.C. only | Tule Lake (Frio Consolidated) | Nueces | 1 | 258K | 1.41M | Nov 2010 – Apr 2026 |
| Sugarloaf 7475 7U G-10-295149 | PDC Permian, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 241K | 988K | Oct 2023 – Apr 2026 |
| Sugarloaf 7475 9U G-10-295216 | PDC Permian, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 237K | 1.31M | Oct 2023 – Apr 2026 |
| Lowe 74 Unit G-10-292870 | Alchemist Energy, LLC only | Phantom (Wolfcamp) | Loving | 1 | 234K | 4.22M | Jan 2022 – Apr 2026 |
| Sugarloaf 7475 5U G-10-295440 | PDC Permian, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 224K | 1.2M | Oct 2023 – Apr 2026 |
| Sutton A-574 G-3-265201 | Zarvona Energy LLC only | Double a Wells, N (Austin Chalk) | Polk | 1 | 214K | 1.48M | Dec 2008 – Apr 2026 |
| Lowe 74 Unit G-10-292869 | Alchemist Energy, LLC only | Phantom (Wolfcamp) | Loving | 1 | 200K | 3.5M | Jan 2022 – Apr 2026 |
| Malinda 745 G-14-288241 | Highmark Energy Operating, LLC only | Allen-Parker (Marmaton) | Ochiltree | 1 | 194K | 1.06M | Nov 2018 – Apr 2026 |
| State Tract 690/746 & 750 GU G-4-264784 | Orx Resources, L.L.C. only | Tule Lake (Frio Consolidated) | Nueces | 1 | 190K | 1.01M | Oct 2011 – Jul 2025 |
| State Tract 690/746&750 GU G-4-248014 | Orx Resources, L.L.C. only | Nueces Bay Deep Consolidated | San Patricio | 1 | 188K | 5.26M | Nov 2008 – Apr 2026 |
| State Tract 690 746 & 750 GU G-4-241023 | Energy Twenty Operating LLC only | Nueces Bay Deep Consolidated | San Patricio | 1 | 181K | 4.85M | Jun 2008 – Sep 2012 |
| Sugarloaf 7475 10U G-10-294104 | PDC Permian, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 179K | 996K | Oct 2023 – Apr 2026 |
| State Tract 690/746 & 750 GU G-4-261952 | Orx Resources, L.L.C. only | Nueces Bay Deep Consolidated | San Patricio | 1 | 171K | 2.46M | Jul 2011 – Feb 2024 |
| State Tract 690/746 & 750 GU G-4-249323 | Energy Twenty Operating LLC only | Tule Lake (Frio Consolidated) | Nueces | 1 | 120K | 401K | Jun 2009 – Jan 2017 |
| Utl 3748 37B G-10-298515 | Continental Resources, Inc. only | Ruppel (Woodford) | Winkler | 1 | 113K | 1.92M | Mar 2023 – Apr 2026 |
| Lowe 74 Unit G-10-292924 | Alchemist Energy, LLC only | Phantom (Wolfcamp) | Loving | 1 | 108K | 2.57M | Jan 2022 – Apr 2026 |
| State Tract 74 G-3-169064 | Fieldwood SD Offshore LLC only | Umbrella Point, NE (Price Sand) | Chambers | 1 | 108K | 13.2M | Jan 1998 – Mar 2004 |
| State Tract 690/746 & 750 GU G-4-275285 | Orx Resources, L.L.C. only | Tule Lake (Frio Consolidated) | Nueces | 1 | 106K | 1.05M | May 2014 – Apr 2026 |
| State Tract 690/746 & 750 GU G-4-256726 | Energy Twenty Operating LLC only | Nueces Bay Deep Consolidated | San Patricio | 1 | 100K | 1.04M | Jun 2010 – Feb 2014 |
| State Tract 746-L G-4-127705 | TR Offshore, LLC only | Mstg Isl 746-L (Marg Tex 10) | Mustang IS-LB | 1 | 91.4K | 30.3M | Jan 1993 – May 2025 |
| Sanders 74 G-14-259493 | Bce-Mach II LLC only | Meg (Granite Wash) | Hemphill | 1 | 79.9K | 3.44M | Oct 2010 – Apr 2026 |
| Fritzlen-William 179/174 A G-14-298949 | Mewbourne Oil Company only | Lipscomb (Cherokee Shale) | Lipscomb | 1 | 76.9K | 550K | Aug 2024 – Apr 2026 |
| State Tract 974 G-4-281626 | Mego Resources, LLC only | Nueces Bay Deep Consolidated | San Patricio | 1 | 66.1K | 1.47M | Jul 2016 – Apr 2026 |
| State Tract 746A/750A GU G-4-258758 | Energy Twenty Operating LLC only | Tule Lake (Frio Consolidated) | Nueces | 1 | 64K | 426K | Oct 2010 – Mar 2016 |
| S.T. 747-L SE/4 G-4-192472 | TR Offshore, LLC only | Mustang Island 747-L (13,600 SD) | Mustang IS-LB | 1 | 60.3K | 7.57M | Dec 2002 – Mar 2025 |
| Sanders Unit 74 G-14-264920 | Bce-Mach II LLC only | Meg (Granite Wash) | Hemphill | 1 | 48.7K | 2.67M | Nov 2011 – Apr 2026 |
| Bpa 740 G-3-257141 | Panther Bayou Energy, LLC only | Timber Lake (Wilcox 9900 Sand) | Tyler | 1 | 47.8K | 1.67M | Sep 2010 – Nov 2017 |