| Ramirez-Malakoff Unit G-4-74960 | Hilcorp Energy Company only | Laredo (Lobo) | Webb | 1 | 4.28K | 2.37M | Jan 1993 – Apr 2026 |
| Ramirez, Julian R., Est. -A- O-4-7715 | Finaly Resources LLC only | Edlasater, W. (Cole 950) | Zapata | 2 | 3.6K | 21 | Jan 1993 – Aug 2003 |
| Singer A G-4-163236 | Black Bear Oil Corporation only | Ramirez (Wilcox 8100) | Zapata | 1 | 3.51K | 802K | Apr 1997 – Mar 2005 |
| Ramirez, M. Gas Unit G-4-64507 | Hilcorp Energy Company only | Ramireno (Wilcox) | Zapata | 1 | 3.47K | 1.51M | Jan 1993 – Mar 2025 |
| Ramirez, J. Est. G-4-169065 | Dominion Expl. & Prod., Inc. only | Bob West, North (LZ-5) | Zapata | 1 | 3.28K | 1.2M | Mar 1998 – Mar 2001 |
| Francisco Ramirez et al Gas Unit G-4-165858 | Hilcorp Energy Company only | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 3.12K | 5.05M | Jul 1997 – Apr 2026 |
| Tate-Ramirez C G-1-285780 | Trinity Operating (Usg), LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 3.08K | 5.06M | Jul 2018 – Apr 2026 |
| Ramirez, R.A. GU G-4-142491 | EOG Resources, Inc. only | J J & J (Wilcox 9000) | Zapata | 1 | 2.87K | 751K | Jan 1993 – Aug 2011 |
| Ramirez, L. O. G-4-146882 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 2.83K | 4.6M | Oct 1993 – Apr 2026 |
| Ramirez, M. Gas Unit G-4-114784 | Black Gold Operating Co, LLC only | Starr Brite, W. (7080 Yegua) | Duval | 1 | 2.8K | 346K | Jan 1993 – Jan 2016 |
| Ramirez, Abel G-4-196927 | Hilcorp Energy Company only | Flores, W. (Perdido) | Zapata | 1 | 2.74K | 1.8M | Jul 2003 – Apr 2026 |
| Ramirez, M.&m. Gas Unit G-4-154126 | Arete Operating Company III, LLC only | Barrera (Lobo 6) | Webb | 1 | 2.66K | 313K | Jan 1995 – Apr 2026 |
| Ramirez, J. Est G-4-166763 | Vantage Operating II, LLC only | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 2.39K | 901K | Feb 1998 – Sep 2024 |
| Ramirez G-4-222125 | Hilcorp Energy Company only | Lopeno ( Reklaw B) | Zapata | 1 | 2.32K | 1.32M | Aug 2006 – Oct 2018 |
| Salinas-Ramirez Gas Unit G-4-156453 | Beehive Operating, LLC only | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 2.32K | 2.88M | Aug 1995 – Aug 2024 |
| Ramirez, J. Est. G-4-169069 | Dominion Expl. & Prod., Inc. only | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 2.22K | 837K | Mar 1998 – Jun 2003 |
| Ramirez, L.O. A G-4-164553 | Conocophillips Company only | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 2.13K | 466K | Jan 1997 – Oct 1997 |
| Ramirez, M.&m. Gas Unit G-4-78644 | Arete Operating Company III, LLC only | M.G.R. (Wilcox) | Webb | 1 | 2K | 652K | Jan 1993 – Aug 1997 |
| Ramirez, C. H. Minerals, Ltd. G-4-248394 | Lucky Lad Energy, LLC only | Barrera (Lobo 6) | Webb | 1 | 1.93K | 1.28M | Aug 2008 – Feb 2026 |
| Derly Ramirez G-4-214699 | Hilcorp Energy Company only | Exsun (Lobo Cons.) | Zapata | 1 | 1.88K | 1.67M | Aug 2005 – Apr 2026 |
| Ramirez G-4-218456 | Hilcorp Energy Company only | Lopeno ( Reklaw B) | Zapata | 1 | 1.85K | 1.38M | Apr 2006 – Jun 2016 |
| Ramirez, L.O. A G-4-161597 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 1.84K | 962K | Dec 1996 – Apr 2026 |
| RMT G-4-179524 | Hilcorp Energy Company only | Ramirez (Lobo) | Zapata | 1 | 1.82K | 1.84M | Sep 2000 – Aug 2002 |
| Ramirez, J. Estate G-4-166990 | Dominion Expl. & Prod., Inc. only | Bob West, North (LZ-5) | Zapata | 1 | 1.82K | 583K | Feb 1998 – May 2001 |
| Ramirez, L. O. A G-4-170414 | Hilcorp Energy Company only | Roleta (7483) | Zapata | 1 | 1.75K | 3.89M | Aug 1998 – Apr 2026 |
| Ramirez, Maria V. G-4-191415 | Beehive Operating, LLC only | Bob West, North (LZ-5) | Zapata | 1 | 1.61K | 1.42M | May 2002 – Apr 2026 |
| Ramirez G-4-228845 | Rlu Operating, LLC only | T Patch (Reklaw Oso) | Jim Hogg | 1 | 1.53K | 32.4K | Nov 2006 – Jul 2008 |
| G. & F. Ramirez Gas Unit G-4-189806 | Arete Operating Company III, LLC only | Fausto (Lobo) | Webb | 1 | 1.4K | 344K | Apr 2002 – Apr 2026 |
| Ramirez, J. E. "A" G-4-210768 | Columbus Energy, LLC only | Hereford (Lobo) | Webb | 1 | 1.32K | 599K | Feb 2005 – Apr 2026 |
| Ramirez, Abel G-4-170260 | Hilcorp Energy Company only | Flores, W. (Perdido) | Zapata | 1 | 1.31K | 1.64M | Sep 1998 – Apr 2026 |
| C.H. Ramirez Minerals, Ltd. G-4-222207 | Lucky Lad Energy, LLC only | Hereford (Lobo) | Webb | 1 | 1.26K | 738K | Jun 2006 – Feb 2026 |
| Alonzo Ramirez et al Gas Unit G-4-171526 | Hilcorp Energy Company only | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 1.24K | 2M | Sep 1998 – Apr 2026 |
| Ramirez, M. Gas Unit G-4-112914 | Hunter Petroleum Inc. only | Starr Brite, W. (7080 Yegua) | Duval | 1 | 1.23K | 211K | Jan 1993 – Jul 1995 |
| Ramirez, A G-4-233162 | Hilcorp Energy Company only | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 1.23K | 1.54M | Aug 2007 – Apr 2026 |
| Ramirez, J. A. O-4-13031 | Prime Operating Company only | El Mesquite (3000) | Duval | 1 | 1.09K | 9.89K | Jun 2001 – Feb 2006 |
| Ramirez, Maria V. G-4-193191 | Beehive Operating, LLC only | Bob West, North (LZ-5) | Zapata | 1 | 1.03K | 953K | Jun 2002 – Apr 2026 |
| Ramirez, J. Est. G-4-166051 | Dominion Expl. & Prod., Inc. only | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 1K | 359K | Feb 1998 – Aug 2003 |
| Ramirez, Maria V. G-4-164862 | El Paso Production Oil & Gas Co. only | Bob West, Northwest (L-12-18) | Zapata | 1 | 931 | 257K | Jun 1997 – May 2002 |
| Ramirez, C. H. Minerals, Ltd B G-4-256304 | Lucky Lad Energy, LLC only | Hereford (Lobo) | Webb | 1 | 926 | 259K | Mar 2010 – Feb 2026 |
| Ramirez "A" G-4-156997 | Transtexas Gas Corporation only | Bob West (L-12, 13, 14, 15) | Zapata | 1 | 918 | 272K | Nov 1995 – Apr 2000 |
| Ramirez Mineral Trust A G-4-184435 | Hilcorp Energy Company only | Flores, W. (Perdido) | Zapata | 1 | 916 | 671K | May 2001 – Apr 2026 |
| M. Ramirez Gas Unit G-4-158932 | Black Gold Operating Co, LLC only | Starr Brite, W. (5380) | Duval | 1 | 899 | 245K | Mar 1996 – Oct 2021 |
| Ramirez, R. G-4-165895 | Hilcorp Energy Company only | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 879 | 725K | Nov 1997 – Apr 2026 |
| Ramirez, Maria V. G-4-164018 | Beehive Operating, LLC only | Bob West (L-1-4) | Zapata | 1 | 832 | 374K | Aug 1997 – Sep 2024 |
| Ramirez, L.O. G-4-119002 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 818 | 582K | Jan 1993 – Apr 2026 |
| Ramirez, M. & M. Gas Unit G-4-151263 | Michael Petroleum Corporation only | Barrera (Lobo) | Webb | 1 | 790 | 94.8K | Sep 1994 – Jun 1995 |
| Ramirez, J.A. G-4-132085 | Prime Operating Company only | El Mesquite (5200) | Duval | 1 | 772 | 143K | Jan 1993 – Jan 1998 |
| VT Ramirez G-4-217329 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 705 | 195K | Mar 2006 – Sep 2022 |
| Vielmann-Ramirez "A" G-4-235728 | Hilcorp Energy Company only | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 699 | 978K | Oct 2007 – Apr 2026 |
| Ramirez, Abel G-4-222160 | Hilcorp Energy Company only | Flores, W. (Perdido) | Zapata | 1 | 673 | 771K | Jul 2006 – Apr 2026 |