| H. Blackstone O-3-28084 | Cimarron Engineering, LLC | Chocolate Bayou ( Alibel) | Brazoria | 1 | 1.9K | 41.7K | Apr 2023 – Dec 2023 |
| Bazan O-4-13936 | Cimarron Engineering, LLC | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 1.78K | 0 | Dec 2014 – Feb 2019 |
| Hinze G-4-280865 | Cimarron Engineering, LLC | Quinto Creek | Jim Wells | 1 | 1.74K | 6.74K | Jul 2016 – Jan 2017 |
| Baptist Foundation G-4-288968 | Cimarron Engineering, LLC | Alice (4800 Frio) | Jim Wells | 1 | 1.68K | 233K | Mar 2020 – Mar 2023 |
| Sherwood, Ollie O-2-1069 | Cimarron Engineering, LLC | Mineral, West (Forney Sand) | Bee | 1 | 1.65K | 635 | by Jan 1993 – Feb 2017 |
| English G-3-297809 | Cimarron Engineering, LLC | Matthews, SE (Yegua 6900) | Wharton | 1 | 1K | 101K | Apr 2024 – Aug 2026 |
| Luby G-4-298113 | Cimarron Engineering, LLC | Miller & Fox (Hockley 4875) | Jim Wells | 1 | 709 | 93.8K | Jun 2024 – Aug 2025 |
| Parham G-4-226188 | Cimarron Engineering, LLC | Willamar (4500) | Willacy | 1 | 586 | 87.6K | Jun 2006 – Nov 2009 |
| De Perez, Guadalupe M. G-4-261605 | Cimarron Engineering, LLC | Alice, North (4800) | Jim Wells | 1 | 557 | 366K | Apr 2005 – Oct 2019 |
| Klatt Heirs O-4-14118 | Cimarron Engineering, LLC | Quinto Creek (3800) | Jim Wells | 1 | 548 | 0 | Jul 2019 – Sep 2019 |
| Reynolds, Mary A. G-2-182543 | Cimarron Engineering, LLC | Ramirena, Sw(yegua 4, Seg. C) | Live Oak | 1 | 511 | 73K | Oct 2000 – Dec 2017 |
| Herrmann G-4-284803 | Cimarron Engineering, LLC | Agua Dulce (Lockhart) | Nueces | 1 | 504 | 24.1K | Apr 2018 – Sep 2019 |
| Seidel O-4-14086 | Cimarron Engineering, LLC | Wade City (Alice) | Jim Wells | 1 | 363 | 141K | Jul 2018 – Feb 2021 |
| Marek-Whitley O-2-11924 | Cimarron Engineering, LLC | Circle -B- (5000) | Goliad | 1 | 352 | 0 | Jan 2020 – Mar 2020 |
| Dos Pesos Ranch G-2-283529 | Cimarron Engineering, LLC | Ramirena (4900) | Live Oak | 1 | 334 | 37.1K | Feb 2017 – Dec 2017 |
| Zengerle O-2-12674 | Cimarron Engineering, LLC | Arneckeville (Yegua 4910) | De Witt | 1 | 321 | 0 | May 2023 – May 2024 |
| Lehman "A" O-4-12833 | Cimarron Engineering, LLC | London Gin, N. (4730 Sand) | Nueces | 2 | 290 | 0 | Dec 1997 – Oct 2001 |
| Rose O-4-14266 | Cimarron Engineering, LLC | Magnolia City, N. (Seg a E-89) | Jim Wells | 1 | 288 | 0 | Mar 2025 – Oct 2025 |
| Labbe Heirs O-4-14087 | Cimarron Engineering, LLC | Labbe | Duval | 1 | 252 | 0 | May 2018 – Sep 2018 |
| Klatt O-4-14161 | Cimarron Engineering, LLC | San Patricio (Vicksburg 6100) | San Patricio | 1 | 227 | 0 | Sep 2021 – Nov 2021 |
| Orange Grove Farms O-4-14072 | Cimarron Engineering, LLC | Richard King (Frio Cons.) | Nueces | 1 | 166 | 0 | Nov 2017 – Nov 2017 |
| Crane O-4-14231 | Cimarron Engineering, LLC | Agua Dulce (Consolidated Frio) | Nueces | 1 | 53 | 0 | Dec 2023 – Apr 2024 |
| Rovast O-4-14272 | Cimarron Engineering, LLC | Alice, SE. (Scheel) | Jim Wells | 1 | 0 | 0 | — |
| Hobbs, B. J. G-2-74573 | Cimarron Engineering, LLC | Speaks N. (Frio Upper) | Lavaca | 1 | 0 | 23.7K | Apr 1994 – Jul 2007 |
| Reynolds, Mary A. G-2-80410 | Cimarron Engineering, LLC | Ramirena, SW. (Yegua #2 Sd.) | Live Oak | 1 | 0 | 116K | by Jan 1993 – Mar 2015 |
| McCaslin, C. L. G-2-147032 | Cimarron Engineering, LLC | Ramirena, SW. (Yegua 7, Seg B-1) | Live Oak | 1 | 0 | 7.62K | Aug 1993 – Sep 1994 |
| Hobbs, Billy Joe G-2-200549 | Cimarron Engineering, LLC | Speaks ( 1800) | Lavaca | 1 | 0 | 373K | Feb 2004 – Apr 2023 |
| Steffens G-2-293318 | Cimarron Engineering, LLC | Terrell Point (4200) | Goliad | 1 | 0 | 39.4K | Jun 2022 – Apr 2023 |
| Baptist Foundation O-4-14207 | Cimarron Engineering, LLC | Alice | Jim Wells | 1 | 0 | 0 | — |
| LJ G-2-288676 | Cimarron Engineering, LLC | Jackson Ranch (Yegua 5300) | Live Oak | 1 | 0 | 13.7K | Feb 2020 – Dec 2020 |
| Means G-2-279696 | Cimarron Engineering, LLC | Balfour (Yegua 5000) | De Witt | 1 | 0 | 40.1K | May 2015 – Oct 2015 |
| Adams G-4-301136 | Cimarron Engineering, LLC | Magnolia City, N. (Seg a 5300) | Jim Wells | 1 | 0 | 327 | Sep 2024 – Sep 2024 |
| Cardwell O-4-14107 | Cimarron Engineering, LLC | Riverside, South (Ocker Sand) | Nueces | 1 | 0 | 0 | — |
| Vickers O-4-14104 | Cimarron Engineering, LLC | Cotton (Frio 7450) | Nueces | 1 | 0 | 0 | — |
| Hobbs, B. J. G-2-74564 | Cimarron Engineering, LLC | Speaks, N. (3185 SD) | Lavaca | 1 | 0 | 510K | Mar 1993 – Feb 2024 |
| Orange Grove Farms O-4-14099 | Cimarron Engineering, LLC | Farenthold | Nueces | 1 | 0 | 0 | — |
| K. McDonald O-2-12592 | Cimarron Engineering, LLC | Berkow (Kohler) | Bee | 1 | 0 | 0 | — |
| Geffert-Hoefling G-2-276760 | Cimarron Engineering, LLC | Holly (Frio 3050) | De Witt | 1 | 0 | 169K | Sep 2014 – Mar 2018 |
| Reynolds, Mary A. G-2-98691 | Cimarron Engineering, LLC | Ramirena, SW. (Yegua #2 Sd.) | Live Oak | 1 | 0 | 315K | Dec 1995 – Dec 2014 |
| Messer, W. H. Jr. et Al G-2-111271 | Cimarron Engineering, LLC | Bonnie View, South (5810) | Refugio | 1 | 0 | 0 | — |
| Hobbs, Billy Joe G-2-75750 | Cimarron Engineering, LLC | Speaks N. (Frio Upper) | Lavaca | 1 | 0 | 0 | — |
| Mattie Sue Cardwell G-4-281457 | Cimarron Engineering, LLC | Calallen (5400) | Nueces | 1 | 0 | 1.08K | Nov 2016 – Dec 2016 |
| Bphoffman G-4-301206 | Cimarron Engineering, LLC | Ben Bolt (4600) | Jim Wells | 1 | 0 | 9.07K | Aug 2025 – Oct 2025 |
| Cook G-4-298081 | Cimarron Engineering, LLC | Alice, Deep (Yegua) | Jim Wells | 1 | 0 | 225 | Sep 2024 – Sep 2024 |
| STV O-3-27942 | Cimarron Engineering, LLC | Cistern | Fayette | 2 | 0 | 0 | — |
| Rosita Creek A G-4-300953 | Cimarron Engineering, LLC | Captain Lucey (4900) | Jim Wells | 1 | 0 | 28.7K | May 2025 – Aug 2026 |
| Jarzombek O-1-21035 | Cimarron Engineering, LLC | Stockdale (Poth A) | Wilson | 1 | 0 | 0 | — |