| Braman -C- O-3-8163 | Oak Energy, LLC only | Sugar Valley, N. (Union) | Matagorda | 9 | 8.92K | 8.7K | by Jan 1993 – Jun 2008 |
| Hudson, J. A. O-3-25623 | Olenox Corp. only | Markham | Matagorda | 3 | 8.85K | 0 | Aug 2010 – Sep 2020 |
| Pierce Estate G-3-224241 | Cypress Production, Inc. only | Sugar Valley (Frio 9,000) | Matagorda | 1 | 8.81K | 1.31M | Dec 2006 – Oct 2012 |
| Middlebrook Gas Unit G-3-223720 | Samson Exploration, LLC only | Green Bay (Frio 10830) | Matagorda | 1 | 8.79K | 890K | Oct 2006 – Sep 2011 |
| Kirby-Holy Cross G-3-213394 | Basa Resources, Inc. only | Wadsworth, S. (Discorbis 14390) | Matagorda | 1 | 8.59K | 1.01M | Jun 2005 – Oct 2010 |
| Bunk G-3-297798 | Ponderosa Oil & Gas, LLC only | Nance (Tex-Miss # 5) | Matagorda | 1 | 8.58K | 178K | Feb 2024 – Apr 2025 |
| Johnson, Oscar G-3-98881 | Quintana Pet. Corp. only | Tidehaven (11,000 Sand) | Matagorda | 1 | 8.58K | 1.83M | by Jan 1993 – Jun 1998 |
| Nevada Blessing Unit O-3-25034 | GTG Operating, LLC only | Pheasant (Nelson) | Matagorda | 1 | 8.55K | 1.27K | Apr 2007 – Jun 2020 |
| Kountze, Charles O-3-6941 | Pace Oil and Gas Company only | Markham | Matagorda | 6 | 8.53K | 19 | by Jan 1993 – Dec 1997 |
| Southeast Blessing Unit G-3-236028 | GTG Operating, LLC only | Pheasant, SW. (Frio 10500) | Matagorda | 1 | 8.35K | 268K | Apr 2008 – Dec 2025 |
| Trull, R. B. Unit II G-3-129553 | Intercoastal Energy, Inc. only | Pheasant, S W (Melbourne LO) | Matagorda | 1 | 8.22K | 572K | by Jan 1993 – Jan 2001 |
| Cornelius, L. G-3-226260 | Agp Energy Services LLC only | Wadsworth, S. (Savage 10,100) | Matagorda | 1 | 8.2K | 390K | Oct 2006 – Jan 2024 |
| Bass GU G-3-245439 | Tri-C Resources Partners I, LLC only | Bucks Bayou (Frio Tex 2) | Matagorda | 1 | 8.19K | 1.68M | Oct 2008 – Aug 2026 |
| Larson G-3-163278 | Trinidad Energy, LLC only | Palacios (Frio -A-) | Matagorda | 1 | 8.17K | 1.42M | Jun 1997 – Jul 2026 |
| Hansen, E. O. et al Unit G-3-84291 | Hilcorp Energy Company only | Rugeley, S.W. (13100) | Matagorda | 1 | 8.1K | 151K | by Jan 1993 – Aug 1997 |
| Crooker "A" O-3-13313 | Rusk Energy Operating LLC only | Hamman | Matagorda | 1 | 8.09K | 41 | by Jan 1993 – Mar 2021 |
| Badouh, E. M. Heirs G-3-188124 | Tri-C Resources Partners I, LLC only | Bucks Bayou (Frio Tex 2) | Matagorda | 1 | 8.09K | 3.08M | Mar 2002 – Aug 2026 |
| Trull, R. B. et Al G-3-170085 | Deep Rock Resources, Inc. only | Ashby (Simpson) | Matagorda | 1 | 8.01K | 110K | Jul 1998 – Jul 2002 |
| J. C. Lewis O-3-24940 | Atlas Operating LLC only | Duncan Slough (Frio Cons.) | Matagorda | 3 | 8K | 121K | Jan 2007 – Aug 2026 |
| Old Ocean Unit O-3-3213 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 32 | 7.96K | 222K | by Jan 1993 – Feb 2008 |
| Stovall O-3-27057 | Sue-Ann Operating, L.C. only | Midfields (Betts, L.) | Matagorda | 1 | 7.81K | 0 | Jan 2015 – Oct 2015 |
| Cornelius G-3-176685 | EOG Resources, Inc. only | Wadsworth (Lewis 9900) | Matagorda | 1 | 7.79K | 807K | Mar 2000 – Apr 2002 |
| Hardy Gas Unit G-3-212831 | Devon Energy Production Co, L.P. only | Wadsworth, S. (Discorbis 14390) | Matagorda | 1 | 7.78K | 4.81M | May 2005 – Mar 2012 |
| Summers, E.L. Unit O-3-21303 | Penn Virginia Oil & Gas Corp. only | Rugeley, SW. (12100, N) | Matagorda | 1 | 7.59K | 36.2K | by Jan 1993 – Aug 2000 |
| Ohio Sun Unit G-3-149259 | Comstock Oil & Gas, Inc. only | Markham N.-Bay City, N (Braman) | Matagorda | 1 | 7.57K | 507K | Apr 1994 – May 1998 |
| Rugeley, E. F. O-3-24376 | Rodessa Operating Company only | Lucky ( Gola) | Matagorda | 1 | 7.53K | 1.07K | Jun 2003 – Apr 2007 |
| Braman -C- O-3-8141 | Oak Energy, LLC only | Sugar Valley, N. (Hurlock) | Matagorda | 4 | 7.51K | 7.95K | by Jan 1993 – Jan 1998 |
| Savage G-3-167687 | Enron Oil & Gas Company only | Wadsworth (11,200 Frio) | Matagorda | 1 | 7.5K | 118K | May 1998 – May 1998 |
| Doss, W. G-3-208020 | Samson Lone Star, LLC only | Wadsworth, South (Tex-Miss) | Matagorda | 1 | 7.45K | 900K | Dec 2004 – Jan 2009 |
| Robeson G-3-284977 | Magnum Producing, LP only | Palacios (Frio a, FB-1) | Matagorda | 1 | 7.41K | 1.03M | Apr 2018 – Jul 2026 |
| Thomasson, Sadie O-3-14561 | Lamay Corporation only | Sugar Valley, N. (Robertson) | Matagorda | 2 | 7.38K | 24.2K | by Jan 1993 – Apr 1995 |
| Pounds Gas Unit G-3-224424 | Samson Lone Star, LLC only | Green Bay (Frio 10830) | Matagorda | 1 | 7.34K | 291K | Nov 2006 – Jan 2008 |
| Johnson Foundation O-3-24454 | EOG Resources, Inc. only | Old Ocean (Armstrong) | Matagorda | 1 | 7.34K | 47.5K | Sep 2003 – Apr 2005 |
| Ladner, A. L. O-3-9744 | Northridge Oil Company only | Midfields, N. W. (8850) | Matagorda | 1 | 7.32K | 20 | by Jan 1993 – Oct 1995 |
| Lewis, J. C. G-3-214657 | Atlas Operating LLC only | Duncan Slough (Frio Cons.) | Matagorda | 1 | 7.25K | 168K | Nov 2005 – Aug 2026 |
| Strnadel G-3-160834 | Sue-Ann Production Company only | Midfields (Frio 8575) | Matagorda | 1 | 7.19K | 68.3K | Sep 1996 – Jan 1998 |
| Bouldin, FV -B- O-3-25578 | Oak Energy, LLC only | Sugar Valley (Truitt) | Matagorda | 1 | 7.14K | 119K | Dec 2008 – Oct 2022 |
| Brewster G-3-235007 | Square Mile Energy, L.L.C. only | Tidehaven, Deep (Frio 11300) | Matagorda | 1 | 7.11K | 711K | Feb 2008 – Nov 2010 |
| Sisson, H. H. G-3-211958 | Rawhide Operating, Inc. only | Blessing (F-14-B) | Matagorda | 1 | 7.1K | 93.9K | Jul 2005 – Sep 2011 |
| Cornelius G-3-186895 | San Isidro Development Co, L. C. only | Elliott Slough (Frio, Lower) | Matagorda | 1 | 7.04K | 79.7K | Jun 2001 – Nov 2008 |
| Huebner, M. D. O-3-22045 | Global XRC Corp only | Hamman ( 9,800) | Matagorda | 1 | 7.04K | 290 | May 1993 – Jun 2019 |
| Taylor G-3-194312 | EOG Resources, Inc. only | Sugar Valley, S. (AB-20) | Matagorda | 1 | 7.03K | 818K | Mar 2003 – Oct 2004 |
| Old Ocean Unit G-3-124841 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Matagorda | 1 | 7.02K | 1.37M | by Jan 1993 – Feb 2004 |
| Southeast Blessing Unit G-3-229804 | Baseline Oil & Gas Corp. only | Pheasant, SW. (Frio 11000) | Matagorda | 1 | 6.98K | 71.6K | May 2007 – Dec 2007 |
| Ohio-Sun Unit O-3-8049 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay City, N (Pietz) | Matagorda | 3 | 6.93K | 1.85K | Mar 2000 – Aug 2008 |
| Braman -C- G-3-145251 | Oak Energy, LLC only | Sugar Valley (Frio 8,500) | Matagorda | 1 | 6.91K | 825K | Mar 1993 – Apr 2021 |
| Trull, R. B. G-3-228433 | Deep Rock Resources, Inc. only | Ashby (Eberstein, Up.) | Matagorda | 1 | 6.88K | 288K | Jun 2007 – Jan 2009 |
| Bass GU G-3-249824 | Tri-C Resources Partners I, LLC only | Bucks Bayou (Frio Tex 2) | Matagorda | 1 | 6.85K | 3.84M | Nov 2008 – Aug 2026 |
| Silva Gas Unit G-3-180728 | Unit Petroleum Company only | Nance (Tex-Miss #10) | Matagorda | 1 | 6.84K | 579K | Oct 2000 – Nov 2001 |
| Batchelder et Al G-3-212150 | Kirkpatrick, John Oil LLC only | Turtle Creek (Charlton Sand) | Matagorda | 1 | 6.82K | 435K | Aug 2005 – Sep 2009 |