| Coachwhip 25 O-10-49191 | Formentera Operations LLC only | Keystone (Wolfcamp) | Winkler | 2 | 552K | 652K | Jan 2017 – Apr 2026 |
| Brook Y-6D O-9-19286 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) R 40 Exc | Upton | 1 | 552K | 1.6M | May 2016 – Apr 2026 |
| UL Lead King 344035-16 H O-10-52278 | WPX Energy Permian, LLC only | Phantom (Wolfcamp) | Ward | 1 | 552K | 1.16M | Jul 2019 – Mar 2026 |
| West Pena a Unit O-1-18138 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 6 | 552K | 1.44M | Jan 2015 – Mar 2026 |
| Powell, LFT-A O-9-2220 | Unitex Oil & Gas, L.L.C. only | World | Crockett | 21 | 552K | 42 | Jan 1993 – Apr 2026 |
| State Tract 322 O-4-10610 | Lamar Oil & Gas, Inc. only | Stedman Island (8120 Frio) | Nueces | 3 | 552K | 755K | Jan 1993 – Oct 2007 |
| Ranger C4-6-15 O-10-52057 | VTX Energy Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 552K | 1.51M | Mar 2018 – Apr 2026 |
| Coble "B" O-11-60439 | Extex Operating Company only | Levelland | Hockley | 38 | 552K | 98K | Jan 1993 – Apr 2026 |
| Rio Concho 34-46 D O-10-54697 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 1 | 552K | 1.37M | Feb 2020 – Apr 2026 |
| Commerce Unit Zav B O-1-19916 | Exco Operating Company, LP only | Briscoe Ranch (Eagleford) | Zavala | 4 | 551K | 486K | Dec 2019 – Apr 2026 |
| Sugg "214" O-9-16219 | Compass Energy Operating, LLC only | Andrew a (Wolfcamp) | Irion | 3 | 551K | 680K | Apr 2007 – Mar 2021 |
| Thunder Valley 236 Unit O-10-55334 | Three Span Oil & Gas, Inc. only | Garden City, S. (Wolfcamp) | Scurry | 3 | 551K | 1.19M | Sep 2020 – Apr 2026 |
| A Mueller a-Koehler SW A O-2-11835 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | De Witt | 1 | 551K | 1.74M | May 2019 – Apr 2026 |
| Lenorah 1-21 O-10-52042 | XTO Energy Inc. only | Spraberry (Trend Area) | Martin | 2 | 551K | 3.83M | Dec 2018 – Apr 2026 |
| Zion 55-1-17 Unit G-10-291596 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Loving | 1 | 551K | 2.82M | May 2021 – Apr 2026 |
| Womac 7557 Alloc. A G-10-299994 | Apache Corporation only | Phantom (Wolfcamp) | Reeves | 1 | 551K | 3.13M | Jan 2018 – Apr 2026 |
| Wilkinson Ranch 34-1-A O-10-51941 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Howard | 1 | 551K | 885K | Sep 2018 – Apr 2026 |
| Thunderbolt C21-9 Unit O-10-46765 | Coterra Energy Operating Co. only | Phantom (Wolfcamp) | Reeves | 1 | 551K | 2.92M | Jul 2015 – Apr 2026 |
| State Creek 17-8 Unit G-10-286413 | EOG Resources, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 551K | 3.61M | Aug 2018 – Apr 2026 |
| UL Cottonflat E O-10-55110 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 1 | 551K | 730K | Jan 2021 – Apr 2026 |
| Schenecker A4 O-10-60400 | COG Operating LLC only | Spraberry (Trend Area) | Martin | 1 | 551K | 713K | Sep 2023 – Apr 2026 |
| Leopard Unit 5A5 O-10-49957 | VTX Energy Operating, LLC only | Wolfbone (Trend Area) | Reeves | 1 | 551K | 813K | Feb 2018 – Apr 2026 |
| Texas Tech O-11-62524 | Socorro Exploration, Inc. only | Idalou, North (Clearfork, LO) | Lubbock | 6 | 551K | 1.52K | Jan 1993 – Apr 2026 |
| Sherrod 16-0901 O-9-20077 | XTO Energy Inc. only | Spraberry (Trend Area) R 40 Exc | Reagan | 1 | 551K | 2.27M | Apr 2019 – Apr 2026 |
| Parks Field Unit #2 O-10-28207 | XTO Energy Inc. only | Parks (Fusselman-Montoya) | Midland | 10 | 551K | 2.02M | Jan 1993 – Apr 2026 |
| Mika O-2-11478 | Magnolia Oil & Gas Operating LLC only | Sugarkane (Austin Chalk) | Karnes | 2 | 551K | 1.25M | Apr 2017 – Apr 2026 |
| Frank Midkiff 35 Allocation 3808 O-10-48711 | XTO Energy Inc. only | Spraberry (Trend Area) R 40 Exc | Midland | 2 | 551K | 4.01M | May 2017 – Apr 2026 |
| Grose A-Karnes B Usw C O-2-12411 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | Karnes | 1 | 551K | 1.28M | May 2022 – Apr 2026 |
| State Tract 52-S O-3-20881 | High Island Gas LLC only | St. Tr. 60-S, East (G Sand) | High IS-SB | 1 | 551K | 256K | Jan 1993 – Mar 2014 |
| Fasken -19- O-10-32374 | Fasken Oil and Ranch, Ltd. only | Fasken, South (Wolfcamp) | Ector | 1 | 551K | 980K | Jan 1993 – Apr 2026 |
| Davidson 42F O-10-63677 | Ovintiv USA Inc. only | Spraberry (Trend Area) | Midland | 3 | 551K | 2.54M | Mar 2025 – Apr 2026 |
| UL 20 Sunlight O-10-49103 | Apache Corporation only | Phantom (Wolfcamp) | Winkler | 1 | 551K | 560K | Jun 2017 – Jun 2025 |
| Robbins O-2-9316 | Cyber Enviro-Tech Inc only | Westhoff (Combined Associated) | Jackson | 6 | 551K | 963K | Mar 2009 – Nov 2024 |
| Naylor Jones Unit 29 O-1-18485 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | McMullen | 2 | 551K | 1.11M | Jul 2015 – Apr 2026 |
| Black Stone Minerals a-5 East G-6-250004 | Zarvona Energy LLC only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 551K | 2.32M | May 2007 – Apr 2026 |
| University "45-20" O-10-40804 | Energen Resources Corporation only | War-Wink, S. (Wolfcamp) | Ward | 2 | 551K | 560K | Aug 2010 – Apr 2014 |
| WR Soapberry Unit O-10-48780 | Oxyrock Operating, LLC only | Spraberry (Trend Area) | Howard | 2 | 551K | 2.23M | Feb 2017 – Apr 2026 |
| University 6-48C O-10-58724 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Andrews | 1 | 551K | 663K | May 2023 – Apr 2026 |
| Conner 15-10 (Alloc-D) O-10-56813 | Crescent Energy Operating, LLC only | Spraberry (Trend Area) | Howard | 2 | 550K | 1.45M | Mar 2022 – Apr 2026 |
| Babb 25J O-10-52266 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 550K | 1.04M | Jul 2019 – Apr 2026 |
| Huns-Warm-Muel Usw B O-2-13046 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | Karnes | 1 | 550K | 1.06M | Nov 2024 – Apr 2026 |
| Federal NM-A-19772 O-6-14240 | HD Operating Co, LLC only | Laura la Velle, E. (Massive WX) | Houston | 10 | 550K | 0 | Aug 2003 – Apr 2025 |
| Merlin C O-10-51598 | SM Energy Company only | Spraberry (Trend Area) | Howard | 2 | 550K | 3.64M | Feb 2019 – Apr 2026 |
| Latzel 3946 C O-9-19994 | Apache Corporation only | Spraberry (Trend Area) R 40 Exc | Upton | 1 | 550K | 2.34M | Jul 2018 – Apr 2026 |
| Borregos, K. R. & Seeligson O-4-6544 | EOG Resources, Inc. only | Borregos (Combined Zones) | Kleberg | 197 | 550K | 3.47M | Jan 1993 – Feb 2024 |
| JW (SA) J O-10-49834 | Discovery Operating, Inc. only | Spraberry (Trend Area) | Midland | 4 | 550K | 1.35M | Feb 2018 – Apr 2026 |
| Huff Doback SV G-10-295895 | Apache Corporation only | Phantom (Wolfcamp) | Loving | 1 | 550K | 2.23M | Jun 2022 – Apr 2026 |
| Bearkat 599 O-11-70534 | Ring Energy, Inc. only | Platang (San Andres) | Yoakum | 3 | 550K | 654K | Sep 2016 – Apr 2026 |
| Black Stone Hanks a-20 Unit G-6-256414 | Zarvona Energy LLC only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 550K | 6.2M | Mar 2010 – Apr 2026 |
| Badger 709 A O-11-70758 | Ring Energy, Inc. only | Platang (San Andres) | Yoakum | 2 | 550K | 793K | Jul 2017 – Apr 2026 |