| Davis, Tom O-13-19291 | Jay Management Company, LLC only | Marina-Mag (Conglomerate) | Jack | 1 | 2.06K | 103K | by Jan 1993 – Jan 2003 |
| Briscoe Ranch G-1-68477 | Rosetta Resources Operating LP only | Catarina, SW. (Olmos) | Dimmit | 1 | 2.06K | 201K | by Jan 1993 – Jan 2014 |
| Boening O-1-17896 | First Light Operating, LLC only | Marcelina Creek (Buda) | Wilson | 1 | 2.05K | 0 | Jan 2014 – Feb 2014 |
| Petty "A-1" G-1-127033 | Rosetta Resources Operating LP only | Catarina, SW. (Olmos) | Webb | 1 | 2.03K | 147K | by Jan 1993 – Aug 2012 |
| McAllen Fieldwide Unit G-4-43386 | Fina Oil & Chemical Company only | McAllen (Hansen) | Hidalgo | 1 | 2.03K | 443K | by Jan 1993 – Jun 1997 |
| Cresswell O-8-22993 | R R Operation Inc only | Kachina (Gray) | Coleman | 2 | 2.03K | 16.1K | by Jan 1993 – May 1996 |
| Salinas, Juan G-4-268971 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 2.03K | 986K | Mar 2012 – Aug 2026 |
| McDaniel, Hunter O-1-10452 | Schroeder Oil Properties only | Marcelina Creek (Austin Chalk) | Wilson | 1 | 2.03K | 21 | by Jan 1993 – Apr 1996 |
| Broussard-Hebert G-3-210192 | Square Mile Energy, L.L.C. only | La Belle (Marginulina 8200) | Jefferson | 1 | 2.03K | 615K | May 2005 – Jun 2008 |
| Jackson Estate G-2-178462 | Miner, R. C. Inc. only | Sandy Creek (Marginulina) | Jackson | 1 | 2.02K | 18.4K | May 2000 – Feb 2001 |
| Huebner O-3-25766 | Magnum Producing, LP only | Lucky (Anomalina 10300) | Matagorda | 2 | 2.02K | 4 | Feb 2011 – Jul 2012 |
| Bagby, J.H. O-1-12490 | Sabinal Resources, Inc. only | Pearsall (Austin Chalk) | Dimmit | 1 | 2.01K | 3 | Jul 1994 – Jun 2007 |
| Koehler-Zook Unit O-1-18613 | Kaler Energy Corp. only | Marcelina Creek (Buda) | Wilson | 1 | 2K | 0 | Nov 2014 – Jan 2015 |
| Salinas G.G. G-4-236533 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 1.97K | 241K | Mar 2008 – Oct 2025 |
| Finch Family Trust GU O-3-27408 | Hilcorp Energy Company only | Angelina (10,800) | Chambers | 1 | 1.97K | 1.9K | Jan 2018 – Jun 2020 |
| Kallina G-3-184162 | Walter Oil & Gas Corporation only | Easter, S. (Yegua Kallina) | Colorado | 1 | 1.96K | 184K | Feb 2001 – Jun 2001 |
| Briscoe "A" G-1-64036 | SM Energy Company only | Catarina, SW. (Olmos) | Webb | 1 | 1.96K | 88.7K | by Jan 1993 – Jul 2013 |
| Keirn, Pearl, Unit G-4-11901 | Fina Oil & Chemical Company only | McAllen (Keirn 6100) | Hidalgo | 1 | 1.96K | 311K | by Jan 1993 – May 1999 |
| Brainard Lease 13 O-14-9714 | BE Anadarko II, LLC only | John Creek (Kansas City) | Hutchinson | 1 | 1.96K | 4.57K | Sep 2019 – Aug 2026 |
| Octavio Salinas Gas Unit G-4-149407 | Fran Investments, Inc. only | La Perla (Lobo Cons.) | Zapata | 1 | 1.95K | 389K | Mar 1994 – Jun 2013 |
| Reithmeyer, E. Gas Unit G-4-82229 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 1.95K | 453K | by Jan 1993 – Aug 2026 |
| Winans Living Trust O-1-10800 | Calfas Cattle & Oil, LLC only | Somerset | Atascosa | 7 | 1.94K | 46 | by Jan 1993 – Aug 2026 |
| Petty, O. S. G-1-94556 | Blackbrush O & G, Inc. only | Catarina, SW. (San Miguel-Gas) | Webb | 1 | 1.93K | 173K | by Jan 1993 – Aug 2004 |
| Brainard G-14-64115 | Bracken Operating, L.L.C. only | Hansford (Morrow, Lower) | Roberts | 1 | 1.92K | 902K | by Jan 1993 – Aug 2026 |
| De Tijerina, H.C. G-4-81498 | Chesapeake Operating, Inc. only | T.-C.-B. (Upper Frio Cons.) | Jim Wells | 1 | 1.92K | 343K | by Jan 1993 – Mar 1999 |
| State Tract 167 G-4-139188 | Fina Oil & Chemical Company only | Bird Island, SW. (Frio 12-D) | Kleberg | 1 | 1.92K | 338K | Dec 1997 – Nov 1998 |
| Pritchard, T. et al Unit G-6-166934 | Luminant Mining Company LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 1.91K | 465K | Jan 1998 – Apr 2010 |
| McDonald, E. L. G-3-179152 | EOG Resources, Inc. only | Markham, N. (Anomalina B Upper) | Matagorda | 1 | 1.87K | 134K | Aug 2000 – Sep 2002 |
| Briscoe Ranch G-1-90534 | Rosetta Resources Operating LP only | Catarina, SW. (Olmos) | Dimmit | 1 | 1.85K | 248K | by Jan 1993 – Jan 2014 |
| Detijerina, H.C. G-4-104345 | Chesapeake Operating, Inc. only | T.-C.-B. (LWR Frio-UP Vxbg) | Jim Wells | 1 | 1.85K | 245K | Jun 1995 – Jan 2006 |
| Fernandez, Ricardo O-1-6726 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 5 | 1.84K | 21 | by Jan 1993 – Aug 2026 |
| Wimberly Dev. Corp. -A- O-1-6677 | Black Mac Oil, Inc. only | Taylor-Ina | Medina | 13 | 1.84K | 121 | by Jan 1993 – Sep 2023 |
| Keller Unit O-1-7530 | Murphy Expl. & Prod. Co. - USA only | Marcelina Creek (Austin Chalk) | Wilson | 1 | 1.84K | 11 | Nov 1993 – Apr 2009 |
| Wall O-1-15657 | Cei Operating LLC only | Marcelina Creek (Austin Chalk) | Wilson | 1 | 1.83K | 0 | Jul 2011 – Jul 2015 |
| Pharr Fieldwide Unit G-4-168918 | Totalfinaelf E&P USA Inc only | Pharr (Reichert) | Hidalgo | 1 | 1.83K | 988K | Mar 1998 – Dec 2000 |
| TSL 33105 /TR 53/ G-4-46644 | White Marlin Operating Co, LLC only | Encinal Channel (FB-a, K-8) | Nueces | 1 | 1.83K | 50.4K | Apr 1993 – Sep 2000 |
| Christian, Woods G-4-94694 | Fina Oil & Chemical Company only | Guadalupe (Vicksburg, Lo. Siesta | Hidalgo | 1 | 1.82K | 105K | May 1993 – Feb 1996 |
| Petty Ranch G-1-205673 | St. Mary Land & Exploration Co. only | Catarina, SW. (San Miguel-Gas) | Webb | 1 | 1.81K | 125K | Dec 2004 – Mar 2008 |
| Kroll, John C. O-1-9432 | Sylvan Energy, LLC only | Marcelina Creek (Austin Chalk) | Wilson | 1 | 1.81K | 1 | Dec 1994 – Sep 2008 |
| Cherryhomes, Roy "D" G-13-74536 | Great American Resources Inc. only | Marina-Mag(conglomerate Gas) | Jack | 1 | 1.79K | 54.5K | May 2001 – Jul 2026 |
| Lawless G-6-135514 | Totalfinaelf E&P USA Inc only | Bethany (Travis Peak 6200) | Panola | 1 | 1.79K | 547K | by Jan 1993 – Jun 1997 |
| Lewis O-11-65475 | Finaly Resources LLC only | Levelland | Cochran | 1 | 1.78K | 35 | by Jan 1993 – Jan 1998 |
| Adams & Haggarty O-3-18582 | Wayhan Oil Company only | Big Hill (Heterostegina) | Jefferson | 1 | 1.78K | 7.05K | by Jan 1993 – Oct 1995 |
| De Tijerina, H.C. G-4-112767 | Chesapeake Operating, Inc. only | T.-C.-B. (Upper Frio Cons.) | Jim Wells | 1 | 1.77K | 36.3K | by Jan 1993 – Aug 2000 |
| Hagee O-1-11962 | Stoneburner Exploration, Inc. only | Marcelina Creek (Austin Chalk) | Wilson | 1 | 1.77K | 535 | by Jan 1993 – Nov 1994 |
| Brainard, E.S.F. G-14-171655 | Complete Oil & Gas Services, LLC only | Hansford (Morrow, Upper) | Roberts | 1 | 1.77K | 598K | Oct 1998 – Nov 2018 |
| Burkholder, Alice W. G-1-125987 | Virtex Operating Company, Inc. only | Encinal (5800) | La Salle | 1 | 1.77K | 471K | by Jan 1993 – Feb 2011 |
| Brezina O-13-545 | Guidance Oil DEVELOPERS,INC.(1) only | Archer County Regular | Archer | 4 | 1.77K | 22 | by Jan 1993 – Nov 2001 |
| Cantina O-1-14902 | Petrovybe Opco LLC only | Tri Bar (Olmos) | La Salle | 3 | 1.76K | 95.2K | Sep 2007 – Aug 2026 |
| Salinas, M. G-4-275519 | Merit Energy Company only | Jeffress, E. (Vicksburg K) | Hidalgo | 1 | 1.76K | 133K | Oct 2014 – Jan 2018 |