| Walters A O-2-10255 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 11 | 5.05M | 9.62M | Apr 2012 – Apr 2026 |
| Pfluger, Walter & Raymond O-9-13321 | Sundown Oil Operating, LLC only | Pipe Dream (King Sand) | Concho | 25 | 2.74M | 378K | by Jan 1993 – Apr 2026 |
| CLS Walton O-10-48276 | Team Operating, L.L.C. only | Kermit | Winkler | 97 | 2.38M | 3.13M | Nov 2016 – Apr 2026 |
| Walter Unit O-2-10900 | EOG Resources, Inc. only | Eagleville (Eagle Ford-2) | Karnes | 4 | 1.7M | 2.28M | Jul 2014 – Apr 2026 |
| Walters, Mittie O-10-32425 | Basa Resources, Inc. only | Buckwheat (Siluro-Devonian) | Howard | 5 | 1.44M | 68.3K | by Jan 1993 – Apr 2026 |
| Walton, J. B. O-10-3375 | Hilcorp Energy Company only | Keystone (Ellenburger) | Winkler | 22 | 1.13M | 24M | by Jan 1993 – Jun 2020 |
| Robb Walter Unit O-10-47664 | OXY USA Inc. only | Spraberry (Trend Area) | Howard | 3 | 967K | 1.16M | Feb 2016 – Apr 2026 |
| Walton, J. B. a/C 2 O-10-3287 | Formentera Operations LLC only | Keystone (Colby) | Winkler | 56 | 771K | 747K | by Jan 1993 – Apr 2026 |
| Roberson, Walter O-7-7200 | Linder, John Operating Co., LLC only | East Texas | Rusk | 22 | 629K | 70.8K | by Jan 1993 – Apr 2026 |
| Martin, Walter O-11-13774 | Rusk Co. Well Service Co., Inc. only | Sharon Ridge (Clear Fork) | Scurry | 20 | 622K | 20 | by Jan 1993 – Mar 2026 |
| Walton, J. B., -C- O-10-15164 | Hilcorp Energy Company only | Keystone (San Andres) | Winkler | 13 | 610K | 1.25M | by Jan 1993 – Apr 2026 |
| Pfluger, Walter & Raymond "C" O-9-13365 | Sundown Oil Operating, LLC only | Pipe Dream (King Sand) | Concho | 6 | 591K | 68.3K | by Jan 1993 – Apr 2026 |
| Pure-Walton O-10-3361 | Hilcorp Energy Company only | Keystone (Ellenburger) | Winkler | 22 | 406K | 7.7M | by Jan 1993 – Apr 2021 |
| Smith, Walter Unit O-8-28573 | L.C.S. Production Company only | Mengel, E. (Canyon Sand) | Stonewall | 19 | 369K | 66.8K | Dec 1998 – Apr 2026 |
| Walton, J. B. -A- O-10-3380 | XTO Energy Inc. only | Keystone (Ellenburger) | Winkler | 7 | 340K | 7.41M | by Jan 1993 – Jul 2019 |
| State Walton -E- O-10-3264 | Formentera Operations LLC only | Kermit (Ellenburger) | Winkler | 3 | 332K | 6.88M | by Jan 1993 – Apr 2026 |
| Walter Co. G-3-260140 | Hilcorp Energy Company only | Constitution (Westbury) | Jefferson | 1 | 317K | 2.11M | Jan 2011 – Apr 2026 |
| Walter Co. G-3-271201 | Hilcorp Energy Company only | Constitution (Westbury) | Jefferson | 1 | 305K | 3.08M | Sep 2013 – Mar 2025 |
| Walter Company "D" G-3-221521 | Ballard Exploration Company,inc. only | China (Yegua Cons.) | Jefferson | 1 | 292K | 2.53M | May 2006 – Nov 2014 |
| Walton Unit O-1-18283 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | La Salle | 1 | 280K | 730K | Jan 2015 – Apr 2026 |
| Walther-Hempel Unit O-3-21126 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Fayette | 1 | 268K | 2M | by Jan 1993 – Apr 2026 |
| State-Walton a/C 2 O-10-3286 | Formentera Operations LLC only | Keystone (Colby) | Winkler | 28 | 258K | 629K | by Jan 1993 – Apr 2026 |
| Walton, J. B. O-10-3218 | Formentera Operations LLC only | Kermit | Winkler | 43 | 257K | 402K | by Jan 1993 – Apr 2026 |
| Mahlmann-Walther Unit G-3-141715 | Union Pacific Resources Company only | Giddings (Austin Chalk, Gas) | Fayette | 1 | 252K | 2.3M | by Jan 1993 – Aug 1999 |
| Walter Co. Unit O-3-24724 | Serco Operating LLC only | Green Gully (Nod Blanpedi) | Jefferson | 1 | 252K | 176K | Apr 2005 – Apr 2026 |
| Walton, J. B. O-10-3249 | Petx Operating LLC only | Kermit | Winkler | 20 | 250K | 219K | by Jan 1993 – Apr 2026 |
| Green, Walter Unit O-3-18934 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 4 | 242K | 1.31M | by Jan 1993 – Apr 2026 |
| Walther OL Unit O-3-21905 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk-3) | Fayette | 1 | 239K | 811K | by Jan 1993 – Sep 2011 |
| Waltman G-3-154083 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 239K | 2.34M | Mar 1995 – Feb 2017 |
| Walter Fister 71-TTT-B01 WF O-10-50488 | Matador Production Company only | Phantom (Wolfcamp) | Loving | 1 | 236K | 928K | Feb 2018 – Apr 2026 |
| BSM A-471 G-6-292313 | Walter Oil & Gas Corporation only | Brookeland (Austin Chalk, 8800) | Polk | 1 | 227K | 1.59M | Feb 2022 – May 2025 |
| Schulze, Walter J. O-1-13170 | Trinity Operating (Usg), LLC only | Pearsall (Austin Chalk) | La Salle | 1 | 212K | 58.4K | by Jan 1993 – Apr 2026 |
| Walther-Keck Unit O-3-21688 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Fayette | 1 | 211K | 1.77M | by Jan 1993 – Apr 2026 |
| Davis, Walter R. "44" O-10-36183 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 4 | 210K | 356K | Sep 1999 – Apr 2025 |
| CLS Walton State O-10-49435 | Team Operating, L.L.C. only | Kermit | Winkler | 7 | 206K | 294K | Dec 2017 – Apr 2026 |
| Lightsey, Walter O-3-14048 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 3 | 196K | 573K | by Jan 1993 – Mar 2026 |
| Gibbs, Walter Jr. O-3-20684 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 1 | 170K | 355K | by Jan 1993 – Mar 2026 |
| Walters, Ralph J. O-6-12202 | HD Operating Co, LLC only | Laura la Velle, S. (1600) | Houston | 8 | 157K | 27 | by Jan 1993 – Feb 2026 |
| Strand -A- O-8-2777 | Walton Producing Inc. only | Strand | Haskell | 4 | 154K | 22 | by Jan 1993 – Dec 2020 |
| Waggoner -F- O-13-14322 | Walton Producing Inc. only | Wilbarger County Regular | Wilbarger | 10 | 151K | 22 | by Jan 1993 – Oct 2024 |
| Walter Co. O-3-23974 | Cimarex Energy Co. only | Fannett, N. (Hackberry) | Jefferson | 1 | 150K | 508K | Mar 2001 – Mar 2007 |
| Mahlmann-Walther Unit O-3-23765 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Fayette | 1 | 150K | 1.54M | Sep 1999 – Apr 2026 |
| Walton, John B., -D- O-10-18571 | BCP Resources, LLC only | Keystone (Colby) | Winkler | 14 | 145K | 173K | by Jan 1993 – Apr 2026 |
| Walton, J. C. "A" O-3-24703 | Enhanced Energy Partners Corp only | Raccoon Bend (Wilson) | Austin | 2 | 143K | 160 | May 2005 – Apr 2026 |
| Solomon-Walters O-13-27365 | Mountain Creek Oil Company, Inc. only | Cooke County Regular | Cooke | 15 | 138K | 21 | by Jan 1993 – Apr 2026 |
| Walter Kelly "19" O-10-41970 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 3 | 131K | 209K | Jan 2012 – Apr 2025 |
| Walton a/C 118 O-10-3207 | Saxet Oil Corporation only | Kermit | Winkler | 5 | 127K | 16.5K | by Jan 1993 – Apr 2026 |
| Walter 24 G-14-280850 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 125K | 1.83M | Apr 2016 – Apr 2026 |
| Bishop Unit O-8-15451 | Walton Producing Inc. only | Stephens County Regular | Stephens | 1 | 120K | 1.35K | by Jan 1993 – Feb 2026 |
| Sun-Walton O-10-2531 | Q Natural Resources, LLC only | Henderson | Winkler | 11 | 117K | 108K | by Jan 1993 – Dec 2023 |