| East Cowden (Grayburg) Unit O-10-22927 | Basin Oil & Gas Operating, LLC only | Cowden, North | Ector | 92 | 10.4M | 3.6M | Jan 1993 – Jul 2026 |
| Traylor South Zav O-1-15766 | Exco Operating Company, LP only | Briscoe Ranch (Eagleford) | Zavala | 34 | 8.9M | 6.34M | Nov 2011 – Jul 2026 |
| Westbrook Southwest Unit O-10-21120 | Grayrock Energy II, LLC only | Westbrook | Mitchell | 371 | 8.65M | 21 | Jan 1993 – Jul 2026 |
| Ray Reed 32 O-9-20252 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) R 40 Exc | Upton | 12 | 5.31M | 24.2M | Dec 2018 – Jul 2026 |
| Dodge, Granville M., Est. O-10-2905 | Grayrock Energy II, LLC only | Iatan, East Howard | Howard | 262 | 5.2M | 438K | Jan 1993 – Jul 2026 |
| Traylor North O-1-15412 | Exco Operating Company, LP only | Briscoe Ranch (Eagleford) | Zavala | 28 | 5.09M | 4.07M | Jan 2011 – Jul 2026 |
| Mfe Unit O-10-33264 | Fasken Oil and Ranch, Ltd. only | M.F.E. (Grayburg) | Andrews | 52 | 4.19M | 835K | Jan 1993 – Jul 2026 |
| Lake Trammel Unit O-8-8712 | Grayrock Energy II, LLC only | Lake Trammel, W. (Canyon) | Nolan | 203 | 3.85M | 2.09M | Jan 1993 – Jul 2026 |
| Williams, J. E. O-14-655 | Large Operating LLC only | Panhandle Gray County Field | Gray | 73 | 2.82M | 1.69M | Jan 1993 – Jul 2026 |
| Pfluger, Walter & Raymond O-9-13321 | Sundown Oil Operating, LLC only | Pipe Dream (King Sand) | Concho | 25 | 2.74M | 378K | Jan 1993 – Jul 2026 |
| Rayes B O-2-10374 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 5 | 2.6M | 6.99M | Nov 2011 – Jul 2026 |
| Combs O-14-687 | Petco Energy Corporation only | Panhandle Gray County Field | Gray | 178 | 2.35M | 2.81M | Jan 1993 – Jul 2026 |
| Davis, M. B. O-14-637 | Large Operating LLC only | Panhandle Gray County Field | Gray | 59 | 2.29M | 900K | Jan 1993 – Jul 2026 |
| Sprayberry Field Unit O-11-67425 | Aviator Energy, LLC only | Clayton Ranch, N. (Spraberry) | Borden | 13 | 2.15M | 422K | Aug 1995 – Jul 2026 |
| Glover-Rayes B Unit O-1-15925 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | Atascosa | 8 | 1.98M | 1.88M | Mar 2012 – Jul 2026 |
| Glover-Rayes a Unit O-1-15527 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | Atascosa | 9 | 1.87M | 1.7M | Jul 2011 – Jul 2026 |
| Ellis-Gray Unit O-11-61958 | Unitex Oil & Gas, L.L.C. only | Sharon Ridge (1700) | Scurry | 194 | 1.81M | 238 | Jan 1993 – Jul 2026 |
| Sting Ray A O-1-16983 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | McMullen | 8 | 1.73M | 2.32M | Jun 2013 – Jul 2026 |
| Ray Kinsella O-10-51476 | SM Energy Company only | Spraberry (Trend Area) | Howard | 5 | 1.72M | 3.96M | Feb 2019 – Jul 2026 |
| Gray, Columbus Etal O-10-1719 | Basin Oil & Gas Operating, LLC only | Fuhrman-Mascho | Andrews | 161 | 1.7M | 951K | Jan 1993 – Jul 2026 |
| Stingray 53-2-25 Lov Unit O-10-51384 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 4 | 1.63M | 2.88M | Jan 2018 – Jul 2026 |
| Serio (Grayburg)unit O-10-37270 | Fasken Oil and Ranch, Ltd. only | Serio (Grayburg) | Andrews | 52 | 1.54M | 159K | May 2004 – Jul 2026 |
| Fee -Y- O-10-23655 | Fasken Oil and Ranch, Ltd. only | Serio (Grayburg) | Andrews | 34 | 1.43M | 210K | Jan 1993 – Jul 2026 |
| Hardin-Rayes Unit O-1-15533 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | McMullen | 7 | 1.41M | 1M | Jun 2011 – Jul 2026 |
| Midland Farms NO Grby UT O-10-9893 | Fasken Oil and Ranch, Ltd. only | Midland Farms, North (Grayburg) | Andrews | 71 | 1.38M | 77.1K | Jan 1993 – Oct 2025 |
| Traylor Unit Zav M O-1-17867 | Exco Operating Company, LP only | Briscoe Ranch (Eagleford) | Zavala | 6 | 1.32M | 707K | Feb 2014 – Jul 2026 |
| Johnson Ranch Unit O-14-6772 | Bce-Mach III LLC only | Panhandle Gray County Field | Gray | 69 | 1.3M | 286K | Jan 1993 – Jul 2026 |
| Snyder, Susie B. O-10-6197 | Grayrock Energy II, LLC only | Snyder | Howard | 83 | 1.3M | 23.4K | Jan 1993 – Jul 2026 |
| Germania (Grayburg) Unit O-10-25017 | Heifer Production Company LLC only | Germania (Grayburg) | Midland | 34 | 1.26M | 67.3K | Jan 1993 – Jul 2026 |
| Stevie Ray W Unit O-10-58935 | Ovintiv USA Inc. only | Spraberry (Trend Area) | Martin | 5 | 1.26M | 1.93M | Dec 2022 – Jul 2026 |
| Black Stone G O-3-24192 | IV Standard, LLC only | Patricia Ray (1ST Yegua) | Polk | 8 | 1.24M | 432K | May 2002 – Jul 2026 |
| Bowers, J. B., NCT-1 O-14-3269 | Large Operating LLC only | Panhandle Gray County Field | Gray | 24 | 1.23M | 421K | Jan 1993 – Jul 2026 |
| Phoenix Grayburg Unit O-10-31440 | Itx Pipeline Company, LLC only | Phoenix (Grayburg) | Martin | 34 | 1.22M | 7.38K | Jan 1993 – Jul 2026 |
| Edith Gray Schendel Usw A O-2-11438 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Karnes | 1 | 1.21M | 3.26M | May 2017 – Jul 2026 |
| West Flowers Unit O-8-11787 | Grayrock Energy II, LLC only | Flowers, W. (Canyon Sand) | Stonewall | 98 | 1.15M | 600K | Jan 1993 – Jul 2026 |
| Snyder, B. S. -A- O-10-6213 | Grayrock Energy II, LLC only | Snyder | Howard | 28 | 1.14M | 95.3K | Jan 1993 – Jul 2026 |
| Worley O-14-689 | Petco Energy Corporation only | Panhandle Gray County Field | Gray | 56 | 1.08M | 1.85M | Jan 1993 – Jul 2026 |
| Traylor Unit Zav N O-1-17653 | Exco Operating Company, LP only | Briscoe Ranch (Eagleford) | Zavala | 6 | 1.05M | 753K | Feb 2014 – Jul 2026 |
| Traylor, T.P. "B" O-2-7684 | McGowan Working Partners, Inc. only | Heyser (5400 #2) | Victoria | 8 | 1.03M | 509K | Jan 1993 – Jul 2026 |
| Raymore 1-48 Unit O-10-49437 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Loving | 2 | 1.02M | 2.49M | Oct 2017 – Jul 2026 |
| J. Rayes B Unit O-1-15548 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | McMullen | 6 | 1.02M | 1.38M | Sep 2011 – Jul 2026 |
| Jackson, Wm. O-14-311 | Petco Energy Corporation only | Panhandle Gray County Field | Gray | 9 | 1.02M | 216K | Jan 1993 – Jul 2026 |
| Murray, Alberta B. O-11-311 | Citation Oil & Gas Corp. only | Anton-Irish | Lubbock | 11 | 1.01M | 93.1K | Jan 1993 – Jul 2026 |
| Kloh O-10-42224 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 80 | 997K | 0 | Dec 2011 – Jul 2026 |
| Stevie Ray E Unit O-10-56627 | Ovintiv USA Inc. only | Spraberry (Trend Area) | Martin | 3 | 985K | 1.36M | Sep 2021 – Jul 2026 |
| Moss Grayburg-San Andres Unit O-10-20089 | OXY USA Inc. only | Cowden, South | Ector | 39 | 960K | 248K | Jan 1993 – Jul 2026 |
| West Grayburg Unit O-10-20416 | Occidental Permian Ltd. only | Cowden, South | Ector | 41 | 951K | 257K | Jan 1993 – Jul 2026 |
| University/Energen Grayburg Unit O-10-37100 | Libertad Operating LLC only | Block 2 (Grayburg) | Andrews | 33 | 919K | 0 | Apr 2003 – Jul 2026 |
| Edith Gray Schendel Usw C O-2-11395 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Karnes | 1 | 887K | 1.73M | May 2017 – Jul 2026 |
| Parker Fee -A- O-14-2294 | O.G.P. Operating, Inc. only | Panhandle Gray County Field | Gray | 37 | 876K | 614K | Jan 1993 – Jul 2026 |