| Btlt G-4-242083 | Merit Energy Company | Javelina (Vicksburg Cons.) | 1 | 46.5K | 2.67M | Oct 2008 – Aug 2026 |
| Judd Estate-State G-4-195623 | Merit Energy Company | La Copita (Vicksburg Cons.) | 1 | 46.4K | 2.26M | Jun 2003 – Aug 2026 |
| Bentsen-Whittington GU1 G-4-182355 | Merit Energy Company | Alvarado (Vicksburg) | 1 | 46.3K | 5.82M | Mar 2001 – Aug 2026 |
| Garcia, J. A. G-4-126437 | Mountain V Texas, LLC | Flores (Vicksburg, Lower) | 1 | 46.1K | 3.77M | by Jan 1993 – Aug 2026 |
| Eloy O-4-12915 | Valley Petrochemicals, LLC | Kelsey (Frio Consol.) | 3 | 46.1K | 58.6K | Feb 2000 – Jun 2025 |
| De Garcia, B.G. G-4-149020 | Mountain V Texas, LLC | Rincon (Vicksburg Cons.) | 1 | 46K | 1.13M | Mar 1994 – Feb 1997 |
| Bentsen Bros. - State G-4-11360 | Merit Energy Company | La Copita (Vicksburg Cons.) | 1 | 45.9K | 2.73M | by Jan 1993 – Aug 2026 |
| Garcia Heirs G-4-255541 | Mueller Exploration, Inc. | La Coyota (Queen City) | 1 | 45.6K | 4.77M | Jan 2010 – Aug 2026 |
| Brannan G-4-179274 | Wagner Oil Company | La Copita (Vicksburg Cons.) | 1 | 45.3K | 3.84M | Sep 2000 – Aug 2026 |
| Echols G-4-163760 | White Oak Operating Company LLC | Cowboy (Vksbg 9500) | 1 | 45.2K | 2M | Jul 1997 – Jan 2019 |
| Urschel, C. F. G-4-136618 | OXY USA Inc. | Rincon (Vicksburg Cons.) | 1 | 45.1K | 1.07M | by Jan 1993 – May 2011 |
| Slick, T. B. Estate "B" 536 G-4-241069 | Hilcorp Energy Company | Rincon (Vicksburg Cons.) | 1 | 45K | 2.9M | Mar 2008 – Aug 2026 |
| Alvarez-Hinojosa Gas Unit G-4-163149 | Kerr-McGee Oil & Gas Onshore LLC | Frost, North (Vicksburg 7100) | 1 | 44.6K | 717K | Apr 1997 – Jun 2000 |
| Bentsen Bros. - State G-4-152686 | Merit Energy Company | La Copita (Vicksburg Cons.) | 1 | 44.5K | 3.64M | Jan 1995 – Apr 2002 |
| Villarreal G-4-194613 | Merit Energy Company | Alvarado (Vicksburg) | 1 | 44.2K | 4.28M | Apr 2003 – Aug 2026 |
| Slick, T. B. Estate G-4-268853 | Merit Energy Company | Hinde (Vicksburg Consolidated) | 1 | 44.1K | 1.9M | Sep 2012 – Aug 2026 |
| Slick, T.B. Estate a 527 O-4-14147 | Hilcorp Energy Company | Rincon (Vicksburg Cons.) | 1 | 44.1K | 184K | Nov 2016 – Aug 2026 |
| Slick, T. B. Estate G-4-264144 | Merit Energy Company | Hinde (Vicksburg Consolidated) | 1 | 44K | 1.71M | Jul 2011 – Aug 2026 |
| Gonzales O-4-12900 | Texas Independent Explor Ltd. | La Reforma (G-2) | 1 | 43.8K | 142K | Dec 1999 – Dec 2007 |
| Bentsen Bros. - State G-4-214065 | Merit Energy Company | La Copita (Vicksburg Cons.) | 1 | 43.7K | 2.49M | Oct 2005 – Aug 2026 |
| Murch, B. L. G-4-194832 | BZG E&P LLC | Samano (Massive 7200) | 1 | 43.6K | 2.36M | Jan 2003 – Sep 2021 |
| Slick, T. B. Estate G-4-254154 | Merit Energy Company | Hinde (Vicksburg Consolidated) | 1 | 43.6K | 2.47M | Nov 2009 – Aug 2026 |
| De Garcia, B. G. G-4-164147 | Mountain V Texas, LLC | Rincon (Vicksburg Cons.) | 1 | 43.3K | 228K | Jul 1997 – Jun 2026 |
| Starr Produce Co. GU G-4-248177 | Wagner Oil Company | Garcias Ridge (Queen City) | 1 | 43.2K | 613K | Mar 2009 – Aug 2026 |
| Slick-State G-4-157444 | Hilcorp Energy Company | Flores, W. (Vksbrg, Geopressure) | 1 | 43.1K | 2.21M | Dec 1995 – Dec 2023 |
| Barrera, F. - State G-4-56420 | Merit Energy Company | La Copita (Vicksburg Cons.) | 1 | 43.1K | 3.91M | by Jan 1993 – Aug 2026 |
| Garza, A.M.-State O-4-11514 | OXY USA Inc. | Rincon, N. (Vicksburg 6300) | 1 | 43K | 228K | Sep 1999 – Sep 2000 |
| Slick Estate G-4-294819 | Royal Production Company, Inc. | Rincon, N. (Vicksburg Cons.) | 1 | 42.9K | 1.53M | Feb 2023 – Aug 2026 |
| Montalvo, N. R. O-4-12729 | Reh Energy, Inc. | Sun (H-1 M-P) | 1 | 42.8K | 293K | Sep 1997 – Apr 2000 |
| Coates SS G-4-191392 | Petrovybe Opco LLC | Samano, E. (Fourth Massive) | 1 | 42.8K | 3.73M | Jul 2002 – Aug 2026 |
| Garza, A. M. State G-4-181470 | Merit Energy Company | Rincon, N. (Vicksburg Cons.) | 1 | 42.7K | 2.35M | Mar 2001 – Mar 2021 |
| Coates 553 G-4-185477 | Merit Energy Company | Rincon, N. (Vicksburg Cons.) | 1 | 42.6K | 1.33M | Jun 2001 – Aug 2026 |
| Guerra, F.B., Estate -B- G-4-131964 | Orx Resources, L.L.C. | La Reforma (O) | 1 | 42.5K | 569K | by Jan 1993 – Aug 2026 |
| Slick, T. B. Estate G-4-191583 | Shell Western E&P | El Ebanito (Yegua) | 1 | 42.5K | 2.38M | Aug 2001 – Jan 2011 |
| Cameron, W.I. 138 O-4-12379 | Forest Oil Corporation | Cameron (L, Middle) | 1 | 42.4K | 133K | Aug 1994 – Mar 2003 |
| Neblett, G.E. et al Gas Unit G-4-205373 | Merit Energy Company | La Copita (Vicksburg Cons.) | 1 | 42.4K | 2.42M | Sep 2004 – Aug 2026 |
| Brock, J. D. -A- O-4-3494 | Southern Tejas Asset Group LLC | La Union (Ross Sand) | 2 | 42.3K | 128 | by Jan 1993 – Jun 2026 |
| Villarreal G-4-193695 | Merit Energy Company | Alvarado (Vicksburg) | 1 | 42.3K | 3.57M | Feb 2003 – Nov 2022 |
| Share 91 O-4-13005 | Southern Tejas Asset Group LLC | Roma | 1 | 42.2K | 285K | Dec 2000 – Jul 2026 |
| Sheerin Gas Unit G-4-254152 | Wagner Oil Company | Garcias Ridge (Queen City) | 1 | 41.8K | 1.23M | Sep 2009 – Aug 2026 |
| Slick, T. B. Estate G-4-227037 | Merit Energy Company | Hinde (Vicksburg Consolidated) | 1 | 41.7K | 1.38M | Mar 2007 – Aug 2026 |
| De Garcia, B. G. G-4-250432 | Mountain V Texas, LLC | Rincon (Vicksburg Cons.) | 1 | 41.6K | 1.07M | Jul 2009 – Sep 2016 |
| Chapotal Land Co. -A- O-4-12830 | Smith Production Inc. | Yturria (4590 Stray) | 1 | 41.6K | 53.2K | Apr 1999 – Aug 2014 |
| Slick, T.B. Estate G-4-142819 | Fina Oil & Chemical Company | Hinde (Vicksburg 20) | 1 | 41.5K | 1.47M | by Jan 1993 – Feb 1999 |
| Slick, T. B. Estate G-4-144308 | Merit Energy Company | Hinde (Vicksburg Consolidated) | 1 | 41.5K | 1.53M | by Jan 1993 – Aug 2026 |
| Reynolds Unit G-4-250187 | Petrovybe Opco LLC | La Grulla (Yegua 7100) | 1 | 41.2K | 2.83M | Jun 2009 – Aug 2026 |
| Howell, J.J. G-4-98150 | OXY USA Inc. | La Copita (Vicksburg Cons.) | 1 | 41.2K | 3.11M | by Jan 1993 – Nov 2011 |
| Barrera, F. - State G-4-87686 | Merit Energy Company | La Copita (Vicksburg Cons.) | 1 | 41.1K | 2.39M | by Jan 1993 – Aug 2026 |
| Walker, Billy L. G-4-153063 | Mortimer Production Company | Arroyo Los Olmos (Yegua 25) | 1 | 41K | 3.77M | Jan 1995 – Aug 2026 |
| Miller B-C Sand Unit O-4-6006 | Kerr-McGee Oil & Gas Onshore LLC | Garcia (Miller -B- VI) | 1 | 41K | 30.1K | by Jan 1993 – Nov 2002 |