| Richter, Gilbert Acct. 1 O-11-17798 | O Hill Enterprises, Inc. only | Diamond -M- (Wolfcamp 4600) | Scurry | 1 | 12.7K | 60 | Jan 1993 – Jan 1998 |
| Wendt, Gilbert O-4-1087 | Precio Energy, LLC only | Govt. Wells, N. | Duval | 2 | 12.5K | 81 | Jan 1993 – Oct 2000 |
| Welder, Minnie S. O-4-11632 | Abraxas Production Corporation only | Portilla (Gilbert Sd.) | San Patricio | 1 | 12.3K | 70.1K | Jan 1993 – Jun 1995 |
| McClurg-Ewing-Gilbert Unit O-13-29485 | Texxol Operating Company, Inc. only | Risch, SE. (Caddo Congl.) | Wise | 1 | 12.2K | 159K | Mar 1998 – Apr 2026 |
| Moody-Hutchings Unit G-3-205883 | Square Mile Energy, L.L.C. only | Gilbert Ranch (Hackberry 2) | Jefferson | 1 | 10.4K | 629K | Nov 2004 – Jul 2006 |
| Wright, Gilbert G. Est. O-10-33697 | Southwest Royalties, Inc. only | Middleton (Canyon Reef) | Howard | 1 | 10.4K | 11.2K | Jan 1993 – Apr 1998 |
| Dow Gilbert O-13-33457 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 9.97K | 120K | Jan 2016 – Mar 2020 |
| Adams O-6-14223 | Couch, Gilbert only | Carthage (Burnett Sand) | Harrison | 1 | 9.64K | 82.6K | May 2003 – Mar 2022 |
| Broussard G-3-176902 | Helmerich & Payne, Inc. only | Gilbert Woods (Nod. 2) | Jefferson | 1 | 9.1K | 445K | Jun 2000 – Jul 2001 |
| Guerra, Gilberto G-4-205926 | Varas Energy Operating Company, only | Tiffany (Wilcox Carrizo) | Webb | 1 | 8.88K | 740K | Feb 2005 – Apr 2026 |
| Ensley, Gilbert G-13-269692 | Devon Energy Production Co, L.P. only | Alvord, South (Caddo Lime) | Wise | 1 | 7.84K | 17.5K | Oct 2012 – Jul 2013 |
| Gilbert -C- O-3-3853 | Radco Operations, L.P. only | Sour Lake | Hardin | 1 | 7.78K | 29 | Jan 1993 – Mar 2026 |
| Gilbert, Wendell -A- O-1-8296 | Omni Oil & Gas, Inc. only | Fairfield | Bexar | 6 | 7.27K | 18 | Jan 1993 – Apr 2013 |
| Gilbert O-13-16697 | Wolsey Well Service, L.P. only | Bonita (Granite Wash) | Montague | 1 | 6.67K | 19.7K | Jan 1993 – Sep 2003 |
| Chalmers O-6-14213 | Couch, Gilbert only | Carthage (Burnett Sand) | Harrison | 1 | 6.1K | 77.1K | Apr 2003 – Dec 2006 |
| Dameron-Gilbert O-13-24873 | EOG Resources, Inc. only | Gwe (Caddo Congl.) | Cooke | 2 | 5.76K | 0 | Oct 1995 – Dec 2009 |
| Minzenmayer, Gilbert -345- O-9-6837 | Kaiser-Francis Oil Company only | Dorman, West (Goen) | Runnels | 1 | 5.43K | 21 | Jan 1993 – Feb 1997 |
| Gilbert, H.C. 43 O-5-3770 | Basa Resources, Inc. only | Van (Shallow) | Van Zandt | 1 | 5.36K | 7.56K | Jan 2004 – Apr 2026 |
| Crti/McCleod-Gilbert 1ST City G-3-128868 | Atco Prod. Co., Inc. only | Broussard, S. (Nodosaria 2ND) | Jefferson | 1 | 5.06K | 510K | Jan 1993 – Jun 2006 |
| Gilbert O-13-4353 | Aeternum Energy, LLC only | Bonita | Montague | 2 | 5.03K | 13.7K | Jan 1993 – Sep 2001 |
| Gilbert O-8-17726 | Mogul Resources, LLC only | Shoaf-Mergner (Miss) | Eastland | 2 | 4.83K | 52.6K | Jan 1993 – Dec 2021 |
| Gilbert O-8-16923 | Safari Resources, LLC only | Stephens County Regular | Stephens | 1 | 4.79K | 43.1K | Jan 1993 – Sep 2010 |
| Broussard G-3-185628 | Cimarex Energy Co. only | Gilbert Woods (Nod. 1) | Jefferson | 1 | 4.28K | 512K | Aug 2001 – May 2007 |
| Gilbert "A" O-10-30923 | Hartoil Corporation only | Moore | Howard | 1 | 3.5K | 21 | Jan 1993 – Dec 1997 |
| Gilbert O-13-4386 | Ross, Dwight M. Drlg. Co., Inc. only | Bowers (Strawn) | Montague | 2 | 3.45K | 21 | Jan 1993 – Apr 2026 |
| Gilbert, J. O-13-13178 | Felderhoff Production Company only | Eanes (Caddo) | Montague | 2 | 2.87K | 41.9K | Oct 1993 – Jan 2003 |
| Gilbert, Boyd O-13-25057 | Gilbert, Clara only | Wichita County Regular | Wichita | 2 | 2.76K | 86 | Sep 1998 – Oct 2005 |
| Gilbert Shawn GU 3 G-13-198996 | Scout Energy Management LLC only | Morris (Consolidated Congl.) | Wise | 1 | 2.38K | 396K | Jan 2003 – Apr 2026 |
| Schindler, Gilbert G-2-267345 | Trio Consulting & Management,llc only | Mont (Wilcox 10640) | Lavaca | 1 | 1.8K | 78.2K | Oct 2012 – Jun 2016 |
| Shawn, Gilbert GU 3 G-13-98476 | Scout Energy Management LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 1.72K | 432K | Jan 1993 – Dec 2023 |
| Gilbert O-13-4373 | Ross, Dwight M. Drlg. Co., Inc. only | Bowers | Montague | 3 | 1.36K | 21 | Jan 1993 – Jul 2010 |
| Gilbert O-6-12564 | Linder, John Operating Co., LLC only | Camp Hill | Anderson | 1 | 1.15K | 44 | Jan 1993 – May 2012 |
| McClurg-Ewing-Gilbert Unit G-13-76498 | Richey, Ray Management Co., Inc. only | Boonsville (Bend Congl., Gas) | Wise | 1 | 1.13K | 38.3K | Jan 1993 – Mar 1998 |
| Gilbert, A. B. Unit NO 1 G-8-135114 | Eagleridge Operating, LLC only | Brazos, East (Lower Atoka) | Parker | 1 | 1.03K | 137K | Jan 1993 – Jan 2009 |
| McKinney, R. L. O-8-427 | Couch, Gilbert only | Callahan County Regular | Callahan | 14 | 1.02K | 21 | Jan 1993 – Mar 1998 |
| Minzenmeyer, Gilbert -345- O-9-6814 | Kaiser-Francis Oil Company only | Dorman, West (Jennings) | Runnels | 1 | 943 | 16 | Jan 1993 – Apr 1994 |
| Gilbert O-13-25475 | Fagadau Energy Corporation only | Bellevue, West (Caddo) | Clay | 1 | 895 | 15.3K | Jan 1993 – Aug 2001 |
| Gilbert G-8-144591 | Abx Oil & Gas, Inc. only | Calabria (Big Saline) | Palo Pinto | 1 | 857 | 361K | Apr 1993 – Sep 2005 |
| Drab, Gilbert O-6-12786 | Lenert & Pettitt, Inc. only | Shiner Pond (Subclarksville) | Wood | 1 | 820 | 3 | Jan 1993 – Mar 1993 |
| Liska, Gilbert A. O-2-7170 | Redding, Bobby L. only | Liska | Live Oak | 1 | 786 | 80 | Jan 1993 – Aug 2002 |
| Elizabeth G-3-198077 | Azimuth Energy, LLC only | Gilbert Woods (Nod. 1) | Jefferson | 1 | 776 | 229K | Aug 2003 – Nov 2004 |
| Gilbert G-8-291894 | Texxol Operating Company, Inc. only | Scatter (Bend) | Palo Pinto | 1 | 735 | 498K | Nov 2021 – Apr 2026 |
| Gilbert -a- Unit G-8-17389 | Itx Corporation only | Brazos, East (Caddo) | Parker | 1 | 630 | 465K | Jan 1993 – Apr 2026 |
| Gilbert, J. O-13-1764 | Cox Operating Co. only | Joy (Strawn) | Clay | 1 | 488 | 21 | Jan 1993 – Feb 1995 |
| Minzenmayer, Gilbert "B" 345 O-9-7381 | Kaiser-Francis Oil Company only | Dorman, West (Goen) | Runnels | 3 | 417 | 5 | Jan 1993 – Oct 1993 |
| Springs, Gilbert F. O-1-6055 | Lott Production Company only | La Vernia | Guadalupe | 3 | 363 | 20 | Jan 1993 – Jul 2002 |
| Gilbert G-8-138035 | SO Operating Company only | Mangum, South (U.marble Falls) | Eastland | 1 | 290 | 13.5K | Jan 1993 – Aug 2002 |
| Gilbert G-8-152763 | Abx Oil & Gas, Inc. only | Kirby Wob (Strawn) | Palo Pinto | 1 | 210 | 263K | Nov 1994 – Feb 2014 |
| Gilbert, J. G-13-21256 | Lynx Oil Co., Inc. only | Bowie, Southwest (Congl.) | Montague | 1 | 144 | 7.85K | Jan 1993 – Apr 1994 |
| Ramirez, Gilberto G-4-208847 | Pheffer Oil, L.L.C. only | Jones (4200 Jackson, N.) | Jim Hogg | 1 | 140 | 21.8K | Feb 2005 – Sep 2005 |