| Gilbert Unit O-2-10094 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-2) | Karnes | 8 | 3.17M | 3.27M | Mar 2012 – Jul 2026 |
| Gilbert Unit A O-2-11720 | Murphy Expl. & Prod. Co. - USA only | Sugarkane (Austin Chalk) | Karnes | 4 | 1.28M | 2.35M | Feb 2019 – Jul 2026 |
| Gilbert 25-24 (Alloc-H) O-10-54297 | Crescent Energy Operating, LLC only | Spraberry (Trend Area) | Howard | 3 | 673K | 1.71M | Mar 2020 – Jul 2026 |
| Gilbert 25-24 (Alloc-F) O-10-54231 | Crescent Energy Operating, LLC only | Spraberry (Trend Area) | Howard | 3 | 549K | 1.56M | Mar 2020 – Jul 2026 |
| Jog East-Gilbert Psa A O-2-12561 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-2) | Karnes | 1 | 256K | 516K | Nov 2022 – Jul 2026 |
| Gilbert 25-24 (Alloc-E) O-10-53906 | Crescent Energy Operating, LLC only | Spraberry (Trend Area) | Howard | 1 | 240K | 866K | Feb 2020 – Jul 2026 |
| Gilbert North Unit Las O-1-16886 | Ineos USA Oil & Gas LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 213K | 607K | Mar 2013 – Jul 2026 |
| Gilbert 25-24 (Alloc-G) O-10-54299 | Crescent Energy Operating, LLC only | Spraberry (Trend Area) | Howard | 1 | 198K | 598K | Mar 2020 – Jul 2026 |
| Gilbert-Luna B Unit O-1-17261 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 167K | 1.11M | Aug 2013 – Jul 2026 |
| Gilbert O-10-29450 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 1 | 164K | 272K | Jan 1993 – Jul 2026 |
| Sneed, Gilbert O-3-5619 | Denbury Onshore, LLC only | Hastings, East | Brazoria | 8 | 159K | 187K | Jan 1993 – Jul 2026 |
| Gilbert "A" O-10-32569 | Avra Oil Company only | Scott (Delaware) | Ward | 2 | 153K | 427K | Jan 1993 – Jul 2026 |
| Gilbert-Luna a Unit O-1-17228 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 148K | 1.44M | Aug 2013 – Jul 2026 |
| Gilbert-Morello B Unit O-1-18966 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 125K | 754K | Jan 2017 – Jul 2026 |
| Gilbert Oil Company O-3-3823 | Radco Operations, L.P. only | Sour Lake | Hardin | 17 | 120K | 22 | Jan 1993 – Jul 2026 |
| Isom, Gilbert, Unit O-6-5057 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville -B-) | Camp | 2 | 117K | 21 | Jan 1993 – Jul 2026 |
| Gilbert-Morello a Unit O-1-18958 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 108K | 844K | Jan 2017 – Jul 2026 |
| Gilbert Gresham O-3-26022 | Deguello Operating LLC only | Halliday (Woodbine) | Leon | 1 | 89.5K | 142K | Jul 2012 – Jul 2026 |
| Gilbert O-10-32306 | Avra Oil Company only | Scott (Delaware) | Ward | 2 | 73.8K | 262K | Jan 1993 – Jul 2026 |
| Gilbert Unit O-13-34285 | Quail Ridge Operating LLC only | Newark, East (Barnett Shale) | Montague | 3 | 66.1K | 927K | May 2024 – Jul 2026 |
| Gilbert O-3-3852 | Radco Operations, L.P. only | Sour Lake | Hardin | 4 | 54.7K | 22 | Jan 1993 – Jul 2026 |
| Gilbert, H. C. 43 O-5-3706 | Union Oil Company of California only | Van (Pecan Gap) | Van Zandt | 7 | 54.2K | 64K | Oct 2000 – Sep 2008 |
| Gilbert O-10-30487 | Rein Pusher Operating LLC only | Moore | Howard | 3 | 48K | 21 | Jan 1993 – Jul 2026 |
| Maxwell, W. A., Etal O-7-6835 | Gilbert,a.a.tx Acct/Partnership only | East Texas | — | 1 | 46.9K | 22 | Jan 1993 – Jul 2026 |
| Ramirez, Gilberto O-4-10553 | Vision Oil and Gas LLC only | Rancho Viejo (Hockley 4800) | Jim Hogg | 2 | 44.3K | 14.7K | Jan 1993 – Jul 2026 |
| Gilbert O-1-11623 | Red Chalk Resources LLC only | Fairfield | Bexar | 35 | 39.6K | 22 | Jan 1993 – Jul 2026 |
| Gilbert "B" O-10-32800 | Avra Oil Company only | Scott (Delaware) | Ward | 1 | 38.6K | 105K | Jan 1993 – Jul 2026 |
| Gilbert O-13-16734 | Aeternum Energy, LLC only | Bonita (Granite Wash) | — | 1 | 37.6K | 2.49K | Jan 1993 – Jul 2026 |
| Gilbert O-13-26217 | Flusche Properties, L.L.C. only | Wichita County Regular | Wichita | 1 | 35.2K | 1.7K | Jan 1993 – Nov 2016 |
| Gilbert, H. C. 43 O-5-3275 | Union Oil Company of California only | Van (Austin Chalk) | Van Zandt | 7 | 34.3K | 138K | Jan 1993 – Aug 2018 |
| Spencer O-6-14214 | Couch, Gilbert only | Carthage (Burnett Sand) | Harrison | 1 | 26.7K | 177K | Oct 2002 – Jul 2026 |
| Gilbert O-8-21705 | S.B. Street Operating, Inc. only | Lunsford (Caddo) | Throckmorton | 1 | 23.5K | 163K | Jan 1993 – Jul 2026 |
| Atlantic Richfield (Gilbert) O-3-10484 | Radco Operations, L.P. only | Sour Lake | — | 4 | 23.1K | 19 | Jan 1993 – Jul 2026 |
| Minzenmayer, Gilbert O-9-17358 | Hardrock Resources Inc. only | Dorman, West (Goen) | Runnels | 5 | 18.6K | 12.6K | May 2011 – Jul 2026 |
| Weise, Gilbert O-3-20315 | Trivista Operating LLC only | Serbin (Taylor Sand) | Lee | 1 | 17.3K | 41K | Jan 1993 – Jul 2026 |
| Denman, Gilbert M., Jr., et Al O-1-3907 | Delray Oil, Inc. only | Darst Creek (Buda) | — | 1 | 15.6K | 1.91K | Jan 1993 – Jul 2026 |
| Gilbert O-1-7134 | Skytop Oil & Gas only | Marsha | Bastrop | 2 | 15.4K | 31 | Jan 1993 – Jul 2026 |
| Richter, Gilbert Acct. 1 O-11-17798 | O Hill Enterprises, Inc. only | Diamond -M- (Wolfcamp 4600) | — | 1 | 12.7K | 60 | Jan 1993 – Jul 2001 |
| Wendt, Gilbert O-4-1087 | Precio Energy, LLC only | Govt. Wells, N. | — | 2 | 12.5K | 81 | Jan 1993 – Jul 2026 |
| Welder, Minnie S. O-4-11632 | Abraxas Production Corporation only | Portilla (Gilbert Sd.) | San Patricio | 1 | 12.3K | 70.1K | Jan 1993 – Oct 1995 |
| McClurg-Ewing-Gilbert Unit O-13-29485 | Texxol Operating Company, Inc. only | Risch, SE. (Caddo Congl.) | Wise | 1 | 12.2K | 159K | Mar 1998 – Jul 2026 |
| Wright, Gilbert G. Est. O-10-33697 | Southwest Royalties, Inc. only | Middleton (Canyon Reef) | — | 1 | 10.4K | 11.2K | Jan 1993 – Dec 2000 |
| Dow Gilbert O-13-33457 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 9.97K | 120K | Jan 2016 – Jul 2026 |
| Adams O-6-14223 | Couch, Gilbert only | Carthage (Burnett Sand) | Harrison | 1 | 9.64K | 82.6K | May 2003 – Jul 2026 |
| Gilbert -C- O-3-3853 | Radco Operations, L.P. only | Sour Lake | — | 1 | 7.78K | 29 | Jan 1993 – Jul 2026 |
| Gilbert, Wendell -A- O-1-8296 | Omni Oil & Gas, Inc. only | Fairfield | Bexar | 6 | 7.27K | 18 | Jan 1993 – Jul 2013 |
| Gilbert O-13-16697 | Wolsey Well Service, L.P. only | Bonita (Granite Wash) | — | 1 | 6.67K | 19.7K | Jan 1993 – Apr 2007 |
| Chalmers O-6-14213 | Couch, Gilbert only | Carthage (Burnett Sand) | Harrison | 1 | 6.1K | 77.1K | Apr 2003 – Apr 2012 |
| Dameron-Gilbert O-13-24873 | EOG Resources, Inc. only | Gwe (Caddo Congl.) | Cooke | 2 | 5.76K | 0 | Jan 1993 – Jun 2013 |
| Minzenmayer, Gilbert -345- O-9-6837 | Kaiser-Francis Oil Company only | Dorman, West (Goen) | Runnels | 1 | 5.43K | 21 | Jan 1993 – Jul 1997 |