| Hixon Properties, Inc. O-1-9000 | MDF Oil Company | Monksfield (350 Sand) | 164 | 110K | 21 | Jan 1993 – Jul 2026 |
| Mauerman O-1-7329 | South Sam Operating Company, LLC | Monksfield (350 Sand) | 226 | 109K | 143 | Jan 1993 – Jul 2026 |
| Mauerman -A- O-1-8545 | South Sam Operating Company, LLC | Monksfield (350 Sand) | 289 | 94.5K | 142 | Jan 1993 – Jul 2026 |
| Long O-1-11972 | Old Chief Oil, LLC | Somerset | 13 | 76.1K | 70 | Jan 1993 – Jul 2026 |
| Stanfield O-1-3389 | Koko Skadi, LLC | Somerset | 30 | 75.9K | 21 | Jan 1993 – Jul 2026 |
| Eastwood, E. -B- O-1-2011 | Koko Skadi, LLC | Somerset | 24 | 71.5K | 21 | Jan 1993 – Jul 2026 |
| Ernst, Katie L. O-1-3113 | Petrosaurus, Inc. | Somerset | 23 | 63.9K | 21 | Jan 1993 – Jul 2026 |
| Pyron O-1-17019 | Red Chalk Resources LLC | Chicon Lake | 33 | 61.3K | 0 | Jun 2013 – Jul 2026 |
| Ernst O-1-11233 | Koko Skadi, LLC | Somerset | 24 | 60.3K | 21 | Jan 1993 – Jul 2026 |
| Schmidt O-1-11223 | Koko Skadi, LLC | Somerset | 28 | 59.3K | 21 | Jan 1993 – Jul 2026 |
| Baker, E.M. "A" O-1-11899 | Paisano Production, Inc. | Somerset | 15 | 53.3K | 73 | Jan 1993 – Jul 2026 |
| Hoffman, Herman O-1-3197 | Drachen Energy Co. | Somerset | 13 | 51.3K | 21 | Jan 1993 – Jul 2026 |
| James, Wm. O-1-2697 | Koko Skadi, LLC | Somerset | 13 | 50.7K | 21 | Jan 1993 – Jul 2026 |
| Lubel Unit #1 O-1-12132 | Petro-Tex Energy & Expl.co.,inc. | Somerset | 8 | 47.9K | 25 | Jan 1993 – Jul 2026 |
| Gerhardt, Haidee O-1-3365 | Petrosaurus, Inc. | Somerset | 14 | 43.2K | 21 | Jan 1993 – Jul 2026 |
| Mauermann -B- O-1-8119 | South Sam Operating Company, LLC | Monksfield (350 Sand) | 151 | 42.7K | 141 | Jan 1993 – Jul 2026 |
| James, Mary L. Etal O-1-1628 | Koko Skadi, LLC | Somerset | 6 | 41.5K | 19 | Jan 1993 – Jul 2026 |
| Metzger, H.L. O-1-9643 | Sorto, Peters God | Monksfield (350 Sand) | 81 | 41.4K | 104 | Jan 1993 – Jul 2026 |
| Mauermann O-1-4530 | South Sam Operating Company, LLC | Monksfield (350 Sand) | 141 | 41.1K | 132 | Jan 1993 – Jul 2026 |
| Jasik, S. O-1-8507 | Aaronmark Services, LLC | Leming (2934 Sand) | 6 | 40.7K | 30 | Jan 1993 – Jul 2026 |
| Gilbert O-1-11623 | Red Chalk Resources LLC | Fairfield | 35 | 39.6K | 22 | Jan 1993 – Jul 2026 |
| LA Grange, Ethel, Est. OF O-1-3191 | Drachen Oil Company | Somerset | 15 | 36.9K | 21 | Jan 1993 – Jul 2026 |
| McKean, M. O-1-8403 | South Sam Operating Company, LLC | Monksfield (350 Sand) | 90 | 35.6K | 138 | Jan 1993 – Jul 2026 |
| Baker O-1-11442 | Old Chief Oil, LLC | Somerset | 10 | 35.2K | 70 | Jan 1993 – Jul 2026 |
| Gastring, R. E. O-1-2456 | Seeker Oil Company, Incorporated | Eckert | 31 | 34.6K | 73 | Jan 1993 – Oct 2018 |
| Kenney, Albert & John O-1-2824 | Petrosaurus, Inc. | Somerset | 12 | 34.2K | 21 | Jan 1993 – Jul 2026 |
| Robertson, Harry O-1-10774 | Koko Skadi, LLC | Somerset | 12 | 34K | 25 | Jan 1993 – Jul 2026 |
| Calk, E. W. O-1-10893 | Calk Operating, LLC | Somerset | 17 | 33.6K | 19 | Jan 1993 – Jul 2026 |
| James, J. W. O-1-1599 | Jamco Oil | Somerset | 9 | 32.4K | 121 | Jan 1993 – Jul 2026 |
| Hayes, Richard O-1-10869 | Drachen Oil Company | Somerset | 3 | 31.9K | 21 | Jan 1993 – Jul 2026 |
| James, J.W. O-1-11202 | Raol Company, The | Somerset | 6 | 31.5K | 133 | Jan 1993 – Jul 2026 |
| Weir-Rambie O-1-9341 | Calfas Oil, LLC | Somerset | 10 | 31.2K | 70 | Jan 1993 – Jul 2026 |
| James, L. M. O-1-1627 | Koko Skadi, LLC | Somerset | 5 | 30.3K | 21 | Jan 1993 – Jul 2026 |
| Franger O-1-9951 | Calfas Oil, LLC | Fairfield | 14 | 29.7K | 22 | Jan 1993 – Jul 2026 |
| Seffel -A- O-1-11217 | Koko Skadi, LLC | Somerset | 13 | 28.7K | 21 | Jan 1993 – Jul 2026 |
| Jasik, Stanley J. O-1-9902 | Aaronmark Services, LLC | Leming (Navarro Sand) | 2 | 28.7K | 24 | Jan 1993 – Jul 2026 |
| Eash, Richard L. O-1-7664 | Koko Skadi, LLC | Somerset | 5 | 26K | 20 | Jan 1993 – Jul 2026 |
| Miller, D. O-1-11361 | Calk Oil Company | Fairfield | 10 | 25K | 20 | Jan 1993 – Jul 2026 |
| Barry -C- O-1-7249 | Mojave Resources, LLC | Fairfield | 18 | 25K | 20 | Jan 1993 – Jul 2026 |
| Williams, Minnie E. O-1-10946 | Petrosaurus, Inc. | Somerset | 19 | 24K | 21 | Jan 1993 – Jul 2026 |
| Cintra I O-1-10788 | Petro Lions, LLC | Somerset | 37 | 23.8K | 18 | Jan 1993 – Jul 2026 |
| Jones-McGlothlin O-1-6911 | Calk, Roger D. | Fairfield | 10 | 23.7K | 19 | Jan 1993 – Jul 2026 |
| Kurz, Bee T., Etal O-1-3219 | Downing Well Service, Inc. | Somerset | 6 | 23.6K | 25 | Jan 1993 – Jul 2026 |
| Mandujano, Alfonzo O-1-11275 | Mandujano, Alfonso, Jr. | Somerset | 5 | 23.5K | 22 | Jan 1993 – Jul 2026 |
| Morris, Beulah -B- O-1-12154 | Seeker Oil Company, Incorporated | Somerset | 9 | 23.4K | 21 | Jan 1993 – Jul 2026 |
| Kuenstler -A- O-1-11775 | Seeker Oil Company, Incorporated | Somerset | 8 | 22.3K | 21 | Jan 1993 – Jul 2026 |
| Klemke, Fred O-1-6498 | Koko Skadi, LLC | Somerset | 10 | 22.2K | 38 | Jan 1993 – Jul 2026 |
| Kenny, William Pyron et UX O-1-11757 | Production Resources, Inc. | Somerset | 9 | 22.2K | 17 | Jan 1993 – Jul 2026 |
| Baker No. 2 O-1-12191 | Downing Well Service, Inc. | Somerset | 7 | 21.7K | 27 | Jan 1993 – Jul 2026 |
| Baker, E.M. -B- O-1-12111 | Petro-Tex Energy & Expl.co.,inc. | Somerset | 5 | 21.6K | 25 | Jan 1993 – Jul 2026 |