| Davis, Nona Berry O-2-1738 | Welderxp Ltd. | Yougeen | 43 | 889K | 2.97M | Jan 1993 – Apr 2026 |
| Murphy, John O-2-4166 | Bridwell Oil Co. | Papalote, E. (3200 Stringer) | 6 | 370K | 21 | Jan 1993 – Apr 2026 |
| Ray, George A. O-2-8260 | Atlas Operating LLC | Pettus | 19 | 367K | 19K | Mar 1997 – Mar 2026 |
| Curlee, D. M. -A- O-2-4647 | McGowan Working Partners, Inc. | Berkow (Kohler) | 2 | 306K | 61.2K | Jan 1993 – Apr 2026 |
| Murphy, John -A- O-2-3512 | Bridwell Oil Co. | Papalote, E. (3250) | 5 | 266K | 21 | Jan 1993 – Apr 2026 |
| Normanna Townsite O-2-8128 | Cimarron Engineering, LLC | Normanna (Hockley 3525) | 1 | 258K | 3.95K | Nov 1995 – Apr 2026 |
| Hughes, J.W. FLP O-2-8412 | C & E Operating, Inc. | Heard Ranch (4800) | 1 | 252K | 381 | Nov 1998 – Feb 2012 |
| Hamilton, Diane Welder O-2-6598 | Bridwell Oil Co. | Papalote, E. (3250 -B-) | 7 | 222K | 21 | Jan 1993 – Apr 2026 |
| Murphy, John -A- O-2-3597 | Bridwell Oil Co. | Papalote, E. (3250 -B-) | 6 | 192K | 21 | Jan 1993 – Apr 2026 |
| Murphy, Willie O-2-3593 | Bridwell Oil Co. | Papalote, E. (3250 -B-) | 5 | 184K | 21 | Jan 1993 – Apr 2026 |
| Pogue O-2-6397 | Aurora Resources Corporation | Pawnee, S. (Lulling) | 2 | 169K | 43.3K | Jan 1993 – Apr 2026 |
| Murphy, John O-2-3601 | Bridwell Oil Co. | Papalote, E. (3250 -B-) | 9 | 165K | 21 | Jan 1993 – Sep 2017 |
| Mengers O-2-8125 | Kingfish Gathering LLC | Tynan, East (Frio 3420) | 1 | 155K | 189K | Oct 1995 – Jun 2020 |
| Yoward, H. E. O-2-1749 | SRS Properties, LLC | Yoward | 6 | 148K | 724K | Jan 1993 – Nov 2024 |
| Norwell O-2-8414 | Tidal Petroleum, Inc. | Tuleta | 3 | 137K | 117K | Oct 1998 – Feb 2004 |
| Lehrmann-Mengers O-2-8143 | Kingfish Gathering LLC | Tynan, East (Frio 3420) | 1 | 128K | 47.6K | Feb 1996 – Apr 2026 |
| McFall-Kerbey O-2-8844 | Serco Operating LLC | Rudman, West (Jackson Sand) | 1 | 117K | 3.06K | Mar 2004 – Apr 2026 |
| Curlee-Winsauer UP Kohler Unit O-2-4688 | Meeker & Company | Berkow (Kohler) | 4 | 109K | 38.8K | Jan 1993 – May 2005 |
| Hiller O-2-11351 | Dynamic Production, Inc. | Blanconia, South | 1 | 104K | 79.9K | May 2017 – Apr 2025 |
| O'Neil-Dobbs O-2-10935 | Paleo Oil Company LLC | Yougeen (Hockley 4500) | 2 | 98.1K | 299K | Jul 2014 – Mar 2026 |
| Hiller Unit O-2-11748 | Dynamic Production, Inc. | Blanconia, South (Chamberlain) | 1 | 97.1K | 111K | Sep 2018 – Apr 2026 |
| Barrow, Laura T. "B"-88 O-2-7800 | Durango Resources Corp. | Laura Thomson (5600 #3) | 3 | 96.2K | 49.7K | Jan 1993 – Jan 2010 |
| Hynes, James Agnes O-2-7536 | Formation Resour Field Svcs, LLC | Papalote, E. (3250) | 3 | 93K | 29.5K | Jan 1993 – Nov 2016 |
| M.K. O'Brien Unit O-2-11498 | Dynamic Production, Inc. | Blanconia, South | 1 | 92.9K | 6.57K | Aug 2017 – Apr 2026 |
| Holzmark -C- O-2-731 | Chandler Oil & Gas, LLC | Holzmark | 16 | 91.9K | 225 | Jan 1993 – Sep 2022 |
| Roth, J. E. O-2-412 | Britanco, L.L.C. | Dirks | 4 | 89.5K | 120 | Jan 1993 – Apr 2026 |
| Murphy, Willie O-2-7548 | Bridwell Oil Co. | Papalote, E. (3200 B Stringer) | 2 | 87K | 21 | Jan 1993 – Apr 2026 |
| Arc - Thomson - Barrow O-2-10695 | Aurora Resources Corporation | Laura Thomson (4850) | 1 | 86.2K | 0 | Sep 2013 – Apr 2026 |
| Toogood O-2-12154 | Trailblazer Oil & Gas LLC | Norbee S. (Yegua 4800) | 1 | 85.2K | 53.1K | Mar 2021 – Sep 2025 |
| Murphy, W. C. O-2-6670 | Paloma Operating, LLC | Papalote, E. (3250 -B-) | 2 | 80.3K | 68 | Jan 1993 – Apr 2026 |
| Hoco Fee Blks. 35 & 23 O-2-1126 | Miner, R. C. Oil, Inc. | Pettus | 2 | 79.1K | 98 | Jan 1993 – Apr 2026 |
| Bear Creek Ranch O-2-8095 | Tare Resources, LLC | Singleton, E. (Hockley) | 1 | 77.4K | 323 | Jun 1995 – Apr 2026 |
| Murphy, John -A- O-2-9092 | Bridwell Oil Co. | Papalote, E. (3200 Stringer) | 1 | 76.8K | 0 | Sep 2006 – Apr 2026 |
| Lopez O-2-12505 | Field Petroleum Corp. | Pawnee, S. (Lulling) | 1 | 75.7K | 19.7K | Mar 2022 – Apr 2026 |
| May O-2-8523 | Apex Energy, Inc. | May Ranch (Hockley) | 1 | 74.9K | 11.2K | Sep 1999 – Mar 2014 |
| Tom O-2-6580 | CHP Oil & Gas Company, L.C. | Steinmeyer (4160) | 1 | 72.4K | 21 | Jan 1993 – Apr 2026 |
| Green, A. O. O-2-343 | Nog Production & Operating LLC | Cosden, West | 3 | 71.9K | 21 | Jan 1993 – Mar 2026 |
| Goree, G. W. O-2-2381 | Britanco, L.L.C. | Goree | 2 | 68.2K | 9.26K | Jan 1993 – Apr 2026 |
| Malone Unit O-2-9221 | Trailblazer Oil & Gas LLC | Beeville, W. (Hockley) | 1 | 65.2K | 80.4K | Jun 2008 – Apr 2025 |
| Bridge Unit O-2-7983 | Ramsower Minerals Corporation | Normanna (Hockley 3525) | 1 | 63.9K | 129K | Aug 1994 – Jul 2006 |
| Olson O-2-8576 | Chandler Oil & Gas, LLC | Tuleta (Yegua 4060) | 1 | 62.5K | 74K | Sep 2000 – Nov 2016 |
| Holzmark, Emma O-2-2143 | Eldon Oil Co. | Macdon (Hockley) | 3 | 62.5K | 21 | Jan 1993 – Apr 2026 |
| Brown O-2-9699 | Headwaters Energy Partners, LLC | Fred Long (Hockley 3850) | 2 | 62.2K | 81.2K | Apr 2011 – Aug 2018 |
| Murphy, John O-2-9083 | Bridwell Oil Co. | Papalote, E. (3250) | 1 | 60.6K | 0 | Sep 2006 – Apr 2026 |
| Hollis Unit O-2-10937 | Trailblazer Oil & Gas LLC | Fred Long (Hockley 3850) | 1 | 60.1K | 88.2K | Sep 2014 – Mar 2021 |
| May A O-2-8618 | Apex Energy, Inc. | May Ranch (Hockley) | 1 | 60K | 22.6K | May 1999 – Nov 2013 |
| Malone O-2-9318 | Enco Exploration Company | Beeville, W. (Hockley) | 1 | 59.4K | 54.6K | May 2009 – Nov 2017 |
| Ray, George A. O-2-1131 | Devon Energy Production Co, L.P. | Pettus | 23 | 59.1K | 11.5K | Jan 1993 – Feb 1997 |
| Suffel O-2-8336 | Tidal Petroleum, Inc. | Tuleta | 1 | 59.1K | 41.6K | Jan 1998 – May 2001 |
| Stauss, Ida O-2-7184 | CLR Gauging Corp. | Mudhill (Hockley) | 1 | 58.8K | 3.99K | Jan 1993 – Apr 2026 |