| Parker Fee -A- O-14-2294 | O.G.P. Operating, Inc. only | Panhandle Gray County Field | Gray | 37 | 876K | 614K | Jan 1993 – Apr 2026 |
| Graystone Unit 39-26 O-10-62685 | Surge Operating, LLC only | Spraberry (Trend Area) | Howard | 6 | 823K | 1.53M | Nov 2024 – Mar 2026 |
| Triple-N /Grayburg/ Cons. O-10-21159 | Ring Energy, Inc. only | Triple-N (Grayburg) | Andrews | 80 | 811K | 340K | Jan 1993 – Apr 2026 |
| Raymond Stallcup 33-37 O-10-44051 | Jetta Operating Company, Inc. only | Two Georges (Bone Spring) | Ward | 2 | 790K | 4.01M | Feb 2013 – Apr 2026 |
| Williams, S.P. O-14-586 | Large Operating LLC only | Panhandle Gray County Field | Gray | 16 | 782K | 285K | Jan 1993 – Apr 2026 |
| Raybank 1-44 O-10-41589 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Loving | 2 | 725K | 1.43M | Jul 2011 – Apr 2026 |
| Wright, J. E. O-14-656 | Large Operating LLC only | Panhandle Gray County Field | Gray | 14 | 723K | 199K | Jan 1993 – Apr 2026 |
| Burkes, Jack D. O-10-27765 | Fasken Oil and Ranch, Ltd. only | Germania (Grayburg) | Midland | 11 | 718K | 185K | Jan 1993 – Apr 2026 |
| Raymond Unit O-3-27683 | Wildfire Energy Operating LLC only | Giddings (Eagleford) | Burleson | 4 | 699K | 249K | Nov 2019 – Mar 2026 |
| Ray 3427 B O-10-48294 | Diamondback E&P LLC only | Spraberry (Trend Area) | Glasscock | 1 | 696K | 2.01M | Nov 2016 – Apr 2026 |
| Traylor West Zav C O-1-15993 | Exco Operating Company, LP only | Briscoe Ranch (Eagleford) | Zavala | 8 | 695K | 423K | Jun 2012 – Apr 2026 |
| Traylor Unit Zav L O-1-18230 | Exco Operating Company, LP only | Briscoe Ranch (Eagleford) | Zavala | 4 | 691K | 565K | Mar 2015 – Apr 2026 |
| Davis, J. W. -B- O-10-2902 | Grayrock Energy II, LLC only | Iatan, East Howard | Howard | 17 | 691K | 24.9K | Jan 1993 – Apr 2026 |
| Gething, E. E. NCT-2 O-14-1536 | Diamond S Energy Company only | Panhandle Gray County Field | Gray | 17 | 642K | 192K | Jan 1993 – Apr 2026 |
| Rayes B - Geffert a SA O-2-11192 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 631K | 1.39M | Jan 2017 – Apr 2026 |
| Rayburn-Baumann W16I O-10-52353 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 624K | 1.25M | Apr 2019 – Apr 2026 |
| Edith Gray - Schendel Usw E O-2-11920 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Karnes | 1 | 622K | 2.15M | Sep 2019 – Apr 2026 |
| Von Blucher G-4-129375 | Urban Oil & Gas Group, LLC only | Brayton, N. (Vicksburg 11100) | Nueces | 1 | 611K | 8M | Jan 1993 – Dec 2003 |
| Faulkner, S. O-14-638 | Large Operating LLC only | Panhandle Gray County Field | Gray | 21 | 599K | 413K | Jan 1993 – Apr 2026 |
| Rayburn-Baumann W16P O-10-50662 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 598K | 1.72M | May 2018 – Apr 2026 |
| Rayburn-Baumann W16G O-10-52331 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 598K | 956K | Apr 2019 – Apr 2026 |
| Rayburn-Baumann W16H O-10-52351 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 593K | 1.25M | Apr 2019 – Apr 2026 |
| Pfluger, Walter & Raymond "C" O-9-13365 | Sundown Oil Operating, LLC only | Pipe Dream (King Sand) | Concho | 6 | 591K | 68.3K | Jan 1993 – Apr 2026 |
| Edwards Field Grayburg Unit O-10-20424 | AD Astra Resources, LLC only | Edwards | Ector | 84 | 585K | 120K | Jan 1993 – Apr 2026 |
| Edith Gray - Schendel Usw F O-2-11921 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Karnes | 1 | 575K | 1.59M | Sep 2019 – Apr 2026 |
| Ray 3427 A O-10-48287 | Diamondback E&P LLC only | Spraberry (Trend Area) | Glasscock | 1 | 574K | 1.46M | Nov 2016 – Apr 2026 |
| Leycomb, A. W. O-14-534 | Petco Energy Corporation only | Panhandle Gray County Field | Gray | 13 | 572K | 790K | Jan 1993 – Apr 2026 |
| Rayes A-Vasbinder a SA 2 G-2-298558 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 569K | 2.17M | Apr 2025 – Apr 2026 |
| Erwin-Murray 45F O-10-58275 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 567K | 646K | Oct 2022 – Apr 2026 |
| Chalk, G. O. O-10-42240 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 40 | 563K | 286 | Dec 2011 – Apr 2026 |
| Ray-Winkleman C43E O-10-61572 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 548K | 1.05M | Jun 2024 – Apr 2026 |
| Ray Reed 33C O-9-21161 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Upton | 1 | 546K | 1.57M | May 2021 – Apr 2026 |
| Ray 3427 H O-10-55293 | Diamondback E&P LLC only | Spraberry (Trend Area) | Glasscock | 1 | 529K | 1.22M | Aug 2019 – Apr 2026 |
| Davis, M. B. O-14-285 | Dunigan Operating Company, Inc. only | Panhandle Gray County Field | Gray | 10 | 528K | 604K | Jan 1993 – Apr 2026 |
| Rayburn-Baumann W16Q O-10-50768 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 527K | 1.77M | May 2018 – Apr 2026 |
| Edith Gray - Schendel Usw D O-2-11903 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Karnes | 1 | 524K | 1.38M | Sep 2019 – Apr 2026 |
| Edith Gray-Schendel Usw B O-2-11414 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Karnes | 1 | 522K | 1.3M | Nov 2017 – Apr 2026 |
| Schenck G-3-141008 | XOG Resources, LLC only | Chocolate Bayou (Andrau Stray) | Brazoria | 1 | 521K | 2.83M | Jan 1993 – Jun 2017 |
| Ray 3427 C O-10-52915 | Diamondback E&P LLC only | Spraberry (Trend Area) | Glasscock | 1 | 509K | 1.29M | May 2019 – Apr 2026 |
| Ray-OXY W43Q O-10-60850 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 502K | 908K | Jun 2024 – Apr 2026 |
| Murray B O-10-2894 | Bce-Mach III LLC only | Iatan, East Howard | Howard | 12 | 501K | 17.1K | Jan 1993 – Apr 2026 |
| Erwin-Murray 45G O-10-58090 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 501K | 646K | Sep 2022 – Apr 2026 |
| Stingray O-10-46593 | Centennial Resource Prod, LLC only | Phantom (Wolfcamp) | Ward | 3 | 492K | 3.06M | Aug 2014 – Oct 2017 |
| Erwin-Murray 45H O-10-58109 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 465K | 536K | Sep 2022 – Apr 2026 |
| Edith Gray-Bord-Schendel Ulw O-2-11422 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Karnes | 1 | 462K | 887K | Nov 2017 – Apr 2026 |
| Raymond Glasscock 5F O-10-48291 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 453K | 625K | Nov 2016 – Apr 2026 |
| Morse, J. S. -D- O-14-440 | Rio Petroleum, Inc. only | Panhandle Gray County Field | Gray | 4 | 453K | 178K | Jan 1993 – Apr 2026 |
| Mead Strawn Unit O-8-9659 | Grayrock Energy II, LLC only | Mead (Strawn) | Jones | 19 | 451K | 241K | Jan 1993 – Apr 2026 |
| Ray 26 O-10-40685 | Discovery Natural Resources LLC only | Spraberry (Trend Area) | Glasscock | 7 | 448K | 3.49M | Dec 2010 – Apr 2026 |
| Ray Reed 33F O-9-21200 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Upton | 1 | 447K | 1.41M | May 2021 – Apr 2026 |