| Seeligson Unit O-4-6280 | Sue-Ann Operating, L.C. | Seeligson (Combined Zones) | 200 | 1.3M | 6.67M | Jan 1993 – Jul 2026 |
| Wardner, G.P. O-4-12618 | Urban Oil & Gas Group, LLC | Stratton (Consolidated) | 52 | 855K | 6.61M | May 1996 – Jul 2026 |
| King Ranch Alazan O-4-12745 | EOG Resources, Inc. | Alazan (Frio Cons.) | 18 | 810K | 1.2M | Jul 1997 – Mar 2025 |
| Borregos, K. R. & Seeligson O-4-6544 | EOG Resources, Inc. | Borregos (Combined Zones) | 197 | 550K | 3.47M | Jan 1993 – Jul 2026 |
| Canales, A.T. O-4-12215 | Remora Operating, LLC | T-C-B (H-61 West) | 6 | 491K | 1.53M | Jun 1993 – Jul 2026 |
| King Ranch Alazan O-4-12743 | EOG Resources, Inc. | Alazan, North (Frio Cons.) | 42 | 340K | 620K | Jul 1997 – Sep 2025 |
| King Ranch Seeligson O-4-11545 | EOG Resources, Inc. | T-C-B, E. (20-I-4, NE, 2 Seg.) | 4 | 292K | 334K | Jan 1993 – May 2026 |
| King Ranch Los Sauces O-4-9733 | EOG Resources, Inc. | Bishop, E. (H-71) | 1 | 287K | 158K | Jan 1993 – Dec 2024 |
| King Ranch Alazan O-4-6999 | Exxon Corp. | Alazan, North (All Zones) | 128 | 256K | 118K | Jan 1993 – Jun 1998 |
| King Ranch Big Caesar O-4-13783 | EOG Resources, Inc. | Big Caesar, SE. (Seg C Manning) | 2 | 256K | 2.28K | Mar 2013 – Mar 2025 |
| State Tract 169 O-4-12128 | Totalfinaelf E&P USA Inc | Bird Island (10-a Seg A) | 2 | 225K | 287K | Jan 1993 – Jan 2002 |
| King Ranch Lobo O-4-13652 | EOG Resources, Inc. | Alazan, North (Frio Cons.) | 1 | 224K | 189K | Feb 2011 – Nov 2024 |
| Yaklin 7400' Oil Unit O-4-12235 | Tejas Petroleum Resources, LLC | Yeary (7400 Sand) | 1 | 149K | 55.2K | Jun 1993 – Jul 2026 |
| Wenner - State Tract 82 O-4-12172 | Tejas Petroleum Resources, LLC | Yeary (7400 Sand) | 1 | 123K | 72.5K | Jan 1993 – Jul 2026 |
| King Ranch Tijerina O-4-13658 | EOG Resources, Inc. | T-C-B, E (20-I-4) | 3 | 120K | 1.85M | Jan 2011 – Jul 2026 |
| King Ranch Tijerina-Laguna Larga O-4-8935 | EOG Resources, Inc. | T-C-B, E. (20-I-3) | 12 | 118K | 244K | Jan 1993 – Sep 2017 |
| King Ranch Alazan O-4-6998 | Exxon Corp. | Alazan (All Zones) | 34 | 116K | 129K | Jan 1993 – Jun 1998 |
| Fimble 7400' Oil Unit O-4-12280 | Tejas Petroleum Resources, LLC | Yeary (7400 Sand) | 1 | 115K | 52K | Aug 1993 – Jul 2026 |
| King Ranch Borregos O-4-14153 | EOG Resources, Inc. | Krb\zuni-NC (Vxbg) | 1 | 94.8K | 482K | Sep 2018 – Jul 2026 |
| King Ranch Borregos O-4-8950 | EOG Resources, Inc. | Escondido Creek (20-I-1) | 4 | 85.7K | 102K | Jan 1993 – Sep 2025 |
| King Ranch Tijerina O-4-13734 | EOG Resources, Inc. | T-C-B, E (20-I-4, N) | 1 | 81.7K | 471K | Mar 2012 – May 2025 |
| King Ranch Seeligson O-4-13674 | EOG Resources, Inc. | T-C-B, E (20-I-4) | 1 | 77.8K | 455K | May 2011 – May 2026 |
| Canales, A. T. O-4-13947 | Remora Operating, LLC | Tijerina-Canales-Blucher ( H-58) | 1 | 68.8K | 54.9K | Jun 2014 – Jul 2026 |
| King Ranch Stratton O-4-8200 | EOG Resources, Inc. | Stratton (Austin, Upper,sw) | 2 | 55.3K | 60.2K | Jan 1993 – Apr 2024 |
| King Ranch Seeligson O-4-13684 | EOG Resources, Inc. | T.-C.-B. 21 (B-1) North | 3 | 53.7K | 150K | May 2011 – Dec 2025 |
| Wardner O-4-11428 | Union Pacific Resources Company | Stratton (F-39-11) | 4 | 51K | 255K | Jan 1993 – Mar 1997 |
| King Ranch Headquarters O-4-10420 | Exxon Mobil Corporation | Big Caesar, West (H-37) | 1 | 40.8K | 7.16K | Jan 1993 – Aug 2005 |
| Wardner, G. P. O-4-12397 | Apache Corporation | Stratton (F-31) | 2 | 39.9K | 109K | Oct 1994 – Mar 2008 |
| Schonefeld -B- O-4-5987 | Dewbre Petroleum Corporation | May (5 Sand, Middle) | 1 | 38.7K | 99.2K | Jan 1993 – Mar 2008 |
| King Ranch Seeligson O-4-11377 | Exxon Mobil Corporation | T-C-B, E. (20-I-4, NE,3 ) | 5 | 37.4K | 54.8K | Jan 1993 – Jul 2012 |
| Baffin Bay State Tract 83 O-4-13150 | Tejas Petroleum Resources, LLC | Del Grullo (9100 Sand) | 1 | 33.2K | 13.2K | Jan 2003 – Jul 2026 |
| King Ranch Borregos O-4-14127 | EOG Resources, Inc. | Borregos (Combined Zones) | 2 | 31.1K | 47.8K | Sep 2018 – Jul 2026 |
| King Ranch Tijerina O-4-8453 | EOG Resources, Inc. | T.-C.-B. 21 (B-1) North | 16 | 30.5K | 428K | Jan 1993 – Nov 2021 |
| King Ranch Laguna Larga O-4-13745 | EOG Resources, Inc. | Tijerina-Canales-Blucher ( H-63) | 2 | 28.6K | 15.4K | Jun 2012 – Mar 2020 |
| King Ranch Seeligson O-4-8455 | Logas Energy, LLC | Zone 21-B Trend (Oil) | 18 | 27K | 14K | Jan 1993 – Jul 2026 |
| King Ranch Borregos O-4-10522 | Exxon Mobil Corporation | Escondido Creek (20-I-1, SW) | 1 | 25.5K | 56.8K | Jan 1993 – Apr 2010 |
| King Ranch Stratton O-4-8402 | Exxon Mobil Corporation | Stratton (7100, T-5) | 2 | 23.3K | 6.99K | Jan 1993 – Feb 2012 |
| King Ranch Stratton O-4-12617 | EOG Resources, Inc. | Stratton (Consolidated) | 13 | 22K | 98.5K | Nov 1996 – May 2025 |
| King Ranch West Borregos O-4-7875 | Exxon Mobil Corporation | Borregos, West (Seg C F-82) | 1 | 19.4K | 26.5K | Jan 1993 – May 2011 |
| King Ranch Stratton O-4-9776 | Exxon Mobil Corporation | Stratton (Sellers 4, SW) | 2 | 18.6K | 11.4K | Jan 1993 – Jun 2007 |
| King Ranch Morgan O-4-10707 | Exxon Mobil Corporation | Magnolia City (F-77) | 1 | 18.4K | 23.4K | Jan 1993 – Jul 2010 |
| Flato O-4-13959 | Dewbre Petroleum Corporation | Ricardo, E. (5100) | 1 | 18K | 0 | Jan 2015 – Jul 2026 |
| King Ranch Canelo O-4-13659 | EOG Resources, Inc. | Canelo (Frio H-I Sand) | 1 | 17.4K | 155K | Dec 2010 – Jan 2020 |
| King Ranch Stratton O-4-7820 | Exxon Mobil Corporation | Stratton (Wardner West, C.) | 5 | 17.1K | 46.4K | Jan 1993 – Apr 2006 |
| King Ranch Alazan O-4-12457 | Exxon Mobil Corporation | Hinojosa, N. (F-25) | 1 | 16.7K | 25.9K | Apr 1995 – Nov 2004 |
| Wardner, G.P. O-4-11469 | Urban Oil & Gas Group, LLC | Stratton (F-37-1) | 1 | 16.4K | 95.7K | Jan 1993 – Jul 2026 |
| Wayne Jones Gas Unit O-4-12163 | W&S Oilfield SVC & Equipment Inc | Padre, North (8750) | 1 | 16.3K | 2.94K | Jan 1993 – Mar 1998 |
| Batot O-4-9587 | Pickens Company, Inc., The | Ricardo, NE (5800) | 1 | 15.7K | 14.3K | Jan 1993 – Mar 1996 |
| King Ranch Tijerina O-4-8938 | Exxon Corp. | T-C-B, E (20-I-4) | 14 | 15.5K | 28.5K | Jan 1993 – Nov 1996 |
| King Ranch Tijerina-Seeligson O-4-9104 | Exxon Mobil Corporation | T-C-B, E (20-I-4, N) | 8 | 15.4K | 25.7K | Jan 1993 – Aug 2011 |