| Bolling, Marjorie G-2-150626 | Kerr-McGee Oil & Gas Onshore LP | Sneezy (Yegua) | 1 | 20.6K | 1.69M | Jul 1994 – May 2002 |
| Ashley Ann O-2-10413 | Hilcorp Energy Company | West Ranch (Frio 6380) | 1 | 20.3K | 79.5K | Jun 2012 – May 2016 |
| Zetka, Josef O-2-3426 | Union Oil Company of California | Ganado, West (4700 Zone) | 3 | 19.7K | 38.5K | by Jan 1993 – Feb 1996 |
| Maurbro Field / A. Gayle O-2-8887 | KD Energy, LLC | Maurbro | 2 | 19.3K | 44.2K | May 2004 – Feb 2016 |
| Scherer, L. P. O-2-8715 | Atlas Operating LLC | El Toro Max, W. (EY-1) | 1 | 19.3K | 236K | Mar 2002 – Apr 2009 |
| Pressly, Edmonia O-2-11211 | Cordele Development Corporation | Cordele (M-2) | 1 | 19.2K | 0 | May 2015 – Jul 2026 |
| Schomburg-Navidad River Unit O-2-9182 | Progenies Operating LLC | Westhoff (Combined Associated) | 2 | 19.1K | 733K | Mar 2008 – Oct 2015 |
| Hudgins, T. J. O-2-1448 | Headington Oil Company | Sandy Creek | 2 | 18.9K | 2.92K | by Jan 1993 – Jun 1997 |
| Spacek, Frank O-2-7903 | Union Oil Company of California | Ganado, West (5250) | 1 | 18.9K | 17.9K | Sep 1993 – Aug 1994 |
| West Ranch Glasscock Sand Unit O-2-4196 | Hilcorp Energy Company | West Ranch (Glasscock) | 11 | 18.4K | 54K | by Jan 1993 – Jun 2000 |
| Anders G-2-157612 | Samson Contour Energy E&P, LLC | El Torito (Yegua 9000) | 1 | 18.4K | 1.71M | Oct 1995 – Aug 2007 |
| Srubar O-2-6101 | United Operating, LLC | Ganado, East (Frio Lower) | 1 | 18.4K | 21 | by Jan 1993 – Dec 2011 |
| Webernick G.U. G-2-124054 | Petro-Smith Operating LLC | Brushy Creek (Wilcox Cons.) | 1 | 18.2K | 767K | by Jan 1993 – Jul 2014 |
| Vincik, Adolph O-2-4746 | Bison Energy Partners, Inc. | El Toro, SW. (6500) | 1 | 18.1K | 20.3K | by Jan 1993 – Jan 2000 |
| Porche G-2-177660 | Decker Operating Co., L.L.C. | Bright Falcon (Yegua 9600) | 1 | 18.1K | 8.05M | Jun 2000 – Oct 2021 |
| Toney, Mrs. M.H. O-2-10183 | Hilcorp Energy Company | West Ranch (98-A) | 1 | 18.1K | 17.2K | Jan 2012 – Jan 2015 |
| Menefee G-2-195335 | Sequoia Fossil Fuels, Inc. | Texana, North (Menefee A-1) | 1 | 18K | 156K | May 2003 – Oct 2009 |
| Traylor, Gene C. et Al O-2-7353 | Fredco | Laura (7450) | 1 | 18K | 2.7K | by Jan 1993 – Mar 2010 |
| Ella Unit G-2-176070 | Ken Petroleum Corporation | Lonken (7030) | 1 | 17.9K | 1.06M | Jan 2000 – Dec 2006 |
| Tittizer, Louis Gas Unit No. 1 G-2-114004 | Dune Operating Company | Toro Grande (8700 SD) | 1 | 17.8K | 990K | by Jan 1993 – Mar 2011 |
| Chappell, Naomi Clarke O-2-3119 | Goldston Oil Corporation | Gabrysch (6300) | 1 | 17.7K | 3.53K | by Jan 1993 – May 1996 |
| Appling, F. E., -B- Unit O-2-3675 | Magnum Producing & Operating Co. | Appling (SEG.12 Frankson) | 1 | 17.6K | 40.1K | by Jan 1993 – May 2002 |
| Rose G-2-264916 | Atinum Operating, Inc. | El Toro Max, South (Yegua AY-3) | 1 | 17.5K | 144K | Dec 2010 – Mar 2012 |
| Hess O-2-12755 | Mamerow Energy Corp | Mayo | 1 | 17.4K | 275 | Apr 2024 – Aug 2026 |
| Niebuhr-Eversberg O-2-11824 | Angel Operating LLC | Ganado, West (4700 Zone) | 1 | 16.8K | 30.8K | Aug 2018 – Sep 2021 |
| Ganado Vacuum O-2-7882 | Basic Energy Services, L.P. | La Salle, NE. (6800) | 1 | 16.8K | 5.95K | Jun 1993 – Jan 1997 |
| Toney, M. H., Mrs. G-2-181523 | Vintage Petroleum, Inc. | West Ranch (6850) | 1 | 16.6K | 148K | Jul 2000 – Dec 2001 |
| Clements, George S. O-2-12294 | Cyber Enviro-Tech Inc | Texana (6620 Frio) | 1 | 16.5K | 0 | Jan 2022 – Aug 2026 |
| Rose & Sample O-2-1491 | Engelke, R. H. | Stewart | 4 | 16.5K | 6.09K | by Jan 1993 – Aug 1996 |
| West Ranch "A" O-2-7828 | Burlington Resources Oil&gas Co. | West Ranch (Cooper) | 2 | 16.4K | 24.5K | Dec 1993 – Apr 1996 |
| Ross Gas Unit (AT4) G-2-219615 | KD Energy, LLC | Ganado (F- 4-C Seg 2) | 1 | 16.3K | 96.8K | Oct 2005 – Sep 2014 |
| D. Rose et al Unit G-2-257479 | Zachry Exploration, LLC | Lonken (7030) | 1 | 16.3K | 538K | Jun 2010 – May 2018 |
| West Ranch State Oil & Gas UNIT1 O-2-12066 | Hilcorp Energy Company | West Ranch, S. (6470 Sand) | 1 | 16.2K | 10.7K | Sep 2020 – Jan 2021 |
| Hasdorff "A" G-2-203210 | Proline Energy Resources Inc | Westhoff (Combined Associated) | 1 | 16.2K | 230K | Apr 2004 – Dec 2017 |
| West Ranch "A" O-2-7568 | Burlington Resources Oil&gas Co. | West Ranch (Frio 6400) | 1 | 16.2K | 66.1K | by Jan 1993 – Apr 1996 |
| Yendrey Fee G-2-170255 | Allegro Investments, Inc. | Big 12 (11,100) | 1 | 16.1K | 99.1K | Aug 1998 – Jan 2002 |
| Schuech, Irma -B- O-2-6818 | Engelke, R. H. | TW (Frio 6680) | 1 | 16.1K | 31.4K | by Jan 1993 – Jan 1995 |
| Cravens, J. R. O-2-12516 | Aldine Oil and Gas, LP | Ganado, West (5400 Zone) | 1 | 16K | 8.41K | Jan 2023 – Aug 2026 |
| Moody Ranch O-2-4600 | Good Earth Services LLC | Moody Ranch (7500) | 1 | 16K | 18.3K | by Jan 1993 – Jul 2026 |
| West Ranch Unit 1 O-2-8059 | Burlington Resources Oil&gas Co. | West Ranch (Frio 7500) | 1 | 15.9K | 17.7K | Mar 1995 – Jun 1996 |
| Simicek, B. O-2-1045 | Sue-Ann Operating, L.C. | Mayo | 1 | 15.8K | 14.8K | by Jan 1993 – Mar 2000 |
| Ganado Vacuum O-2-7980 | Basic Energy Services, L.P. | La Ward, NE. (6640) | 1 | 15.7K | 32.2K | Jul 1994 – Jul 1997 |
| Schuech, Irma "B" O-2-8026 | Engelke, R. H. | TW (Frio 6850) | 2 | 15.7K | 32K | Dec 1994 – Nov 1996 |
| Brooking, G. T. O-2-7172 | Chilton Energy | Swan Lake (6500) | 2 | 15.3K | 63.3K | by Jan 1993 – Mar 2003 |
| Pressly, Edmonia, Estate O-2-2386 | Cordele Development Corporation | Cordele, SE. (C-3 Sand) | 1 | 15.3K | 16 | Feb 1993 – Feb 2009 |
| Germer-Sample O-2-7997 | Cox & Perkins Exploration, Inc. | Bright Falcon (Yegua 10,800) | 1 | 15.3K | 22.5K | Jul 1994 – Jan 1995 |
| Tunison, F. V., NCT-1 O-2-4027 | KD Energy, LLC | Ganado | 4 | 15.2K | 96.3K | Oct 1999 – Mar 2013 |
| Drummond, J.H. O-2-11747 | Hilcorp Energy Company | West Ranch (Vanderbilt Sand) | 2 | 15.1K | 1.96K | Feb 2018 – Dec 2023 |
| West Ranch Unit 1 O-2-7740 | Vintage Petroleum, LLC | West Ranch (Frio 7600) | 1 | 15K | 62.1K | by Jan 1993 – Oct 1994 |
| 3M O-2-10414 | Hilcorp Energy Company | West Ranch (Frio 7650) | 1 | 15K | 14.3K | Nov 2012 – Jul 2015 |