| N. Harold Hunt G-3-266215 | Ibarra Oil LLC only | Turtle Creek | Matagorda | 1 | 11.2K | 633K | Dec 2010 – Aug 2026 |
| Stovall O-3-22379 | Sue-Ann Production Company only | Midfields | Matagorda | 1 | 11.1K | 23K | May 1994 – Feb 1996 |
| Old Ocean Unit G-3-31351 | Amoco Production Company only | Old Ocean (Larsen) | Matagorda | 1 | 11.1K | 253K | by Jan 1993 – Nov 1995 |
| Lewis G-3-185153 | Tri-C Resources Partners I, LLC only | Bucks Bayou (Frio Tex 2) | Matagorda | 1 | 11K | 4.65M | Sep 2001 – Aug 2026 |
| McWilliams Oil Unit O-3-25759 | Atlas Operating LLC only | Hamman | Matagorda | 1 | 11K | 115K | Feb 2011 – Dec 2015 |
| Trull G-3-219031 | Hilcorp Energy Company only | Potthast (Middle Tex Miss) | Matagorda | 1 | 11K | 153K | Jul 2006 – Jul 2010 |
| Trull, R. B. G-3-77956 | Pace Oil and Gas Company only | Trull (Tex-Miss 2-a, N) | Matagorda | 1 | 11K | 446K | by Jan 1993 – Oct 1999 |
| Baer-Franklin G-3-285078 | Hilcorp Energy Company only | Baer Ranch (Tex-Miss Cons) | Matagorda | 1 | 11K | 2.07M | Jun 2018 – Mar 2019 |
| Richers, E. O-3-23404 | Rosenthal, Stanley H. Estate Of only | Hamman (-P- Sand) | Matagorda | 1 | 10.8K | 0 | Apr 1997 – Jun 2013 |
| Cobb, F. G. -A- O-3-9482 | Apache Corporation only | Bay City (7900 Frio) | Matagorda | 1 | 10.8K | 12.7K | by Jan 1993 – Apr 1995 |
| Weinheimer G-3-115249 | Sue-Ann Operating, L.C. only | El Maton, South (Frio 9440) | Matagorda | 1 | 10.7K | 901K | by Jan 1993 – Jan 2004 |
| Trull, R. B. O-3-6826 | KD Energy, LLC only | Pheasant, SW. (Frio A) | Matagorda | 3 | 10.7K | 11.2K | by Jan 1993 – Nov 1999 |
| Huebner Trusts O-3-25859 | Red Wolf Oil Company, Inc. only | Hamman (9500 Frio) | Matagorda | 1 | 10.7K | 69.3K | Mar 2011 – Aug 2013 |
| Buffaloe O-3-24734 | Trinidad Energy, LLC only | Palacios (Frio -C-) | Matagorda | 1 | 10.7K | 96 | Jul 2005 – Jul 2026 |
| Huebner G O-3-27256 | Kebo Oil & Gas, Inc. only | Huebner (10,300) | Matagorda | 1 | 10.5K | 0 | Apr 2017 – Feb 2022 |
| Blessing Pierce O-3-6245 | Hugoton Operating Company, Inc. only | Blessing, North (F-6 Sand) | Matagorda | 2 | 10.4K | 49.4K | by Jan 1993 – Feb 1996 |
| Braman -C- O-3-8154 | Oak Energy, LLC only | Sugar Valley, N. (Robertson) | Matagorda | 2 | 10.4K | 7.82K | by Jan 1993 – Feb 2023 |
| Huebner, Pauline A-382 O-3-27148 | Nupower Energy, LLC only | Provedence (Frio) | Matagorda | 1 | 10.4K | 285 | Aug 2016 – Aug 2026 |
| Northern Ranch O-3-6482 | Apache Corporation only | Northern Ranch (Carlson Sand) | Matagorda | 3 | 10.3K | 21.7K | by Jan 1993 – Oct 1996 |
| Pierce, J.P. Estate O-3-19457 | Unit Petroleum Company only | Palacios (Frio -A-) | Matagorda | 1 | 10.3K | 15K | by Jan 1993 – Jun 1998 |
| Badouh, E. M. Heirs G-3-177130 | Tri-C Resources Partners I, LLC only | Bucks Bayou (Frio Tex 2) | Matagorda | 1 | 10.3K | 3.2M | Jan 2000 – Aug 2026 |
| Cornelius Cattle Company O-3-24938 | Resaca Resources, L.L.C. only | Lucky, NW. (Frio 9730) | Matagorda | 1 | 10.3K | 62.6K | Aug 2006 – Apr 2009 |
| Trull G-3-205597 | Remora Operating, LLC only | Potthast (Middle Tex Miss) | Matagorda | 1 | 10.3K | 238K | Dec 2004 – Aug 2026 |
| Sutherland-Ottis Gas Unit G-3-211973 | Samson Lone Star, LLC only | Abbey's Point (1ST Discorbis) | Matagorda | 1 | 10.3K | 1.22M | Sep 2005 – Aug 2007 |
| Cobb, F. G. -B- O-3-20998 | Apache Corporation only | Bay City (7450, E.) | Matagorda | 1 | 10.2K | 47.1K | by Jan 1993 – Mar 1998 |
| Slone, L.M. O-3-23324 | Rusk Energy Operating LLC only | Hamman (8900) | Matagorda | 1 | 10.2K | 0 | Apr 1997 – Mar 2021 |
| Blessing Unit F-3 O/A O-3-24188 | Sue-Ann Operating, L.C. only | Blessing, North (F-3) | Matagorda | 1 | 10.2K | 117K | May 2002 – Feb 2009 |
| Harriman G-3-197614 | Progenies Operating LLC only | Pheasant, South ( 9,200 Frio) | Matagorda | 1 | 10.1K | 885K | Sep 2003 – May 2004 |
| Doss, W. G-3-203163 | Samson Lone Star, LLC only | Wadsworth, S. (Tex-Miss A) | Matagorda | 1 | 10.1K | 439K | Jun 2004 – Jan 2009 |
| Pierce Estates G-3-51155 | Bushmaster Production Comp, LLC only | Duncan Slough, SE. (Frio Lo.) | Matagorda | 1 | 10K | 696K | by Jan 1993 – Mar 2026 |
| J. L. Evans Ranch O-3-26965 | Ponderosa Oil & Gas, LLC only | Sugar Valley (Talcott) | Matagorda | 1 | 10K | 3.51K | Oct 2014 – Jul 2016 |
| Trull SWP G-3-296218 | Kebo Oil & Gas, Inc. only | Pheasant, SW. (Frio E-3) | Matagorda | 1 | 9.96K | 652K | Jun 2023 – Aug 2026 |
| Savage O-3-24986 | Bluefin Resources LLC only | Wadsworth (Lewis 9900) | Matagorda | 1 | 9.87K | 596K | Oct 2005 – May 2019 |
| Santos-Lewis GU G-3-188108 | Gaither Petroleum Corporation only | Duncan Slough (Frio Cons.) | Matagorda | 1 | 9.83K | 249K | Feb 2002 – Sep 2005 |
| Frick, Otto G-3-51102 | Trinidad Energy, LLC only | Palacios (Frio -D-) | Matagorda | 1 | 9.74K | 252K | by Jan 1993 – Jul 2026 |
| Heffelfinger, Pierce Unit No. 2 G-3-91811 | Kebo Oil & Gas, Inc. only | Tidehaven (10500) | Matagorda | 1 | 9.71K | 2.5M | by Jan 1993 – Dec 2004 |
| Milberger Gas Unit G-3-276868 | Rap Operating, L.L.C. only | Hamman, East (10,700 Frio) | Matagorda | 1 | 9.57K | 451K | May 2013 – Jan 2023 |
| Hunter, Cathy Unit G-3-213852 | Noble Energy Inc only | Potthast (Middle Tex Miss) | Matagorda | 1 | 9.54K | 292K | Nov 2005 – Feb 2010 |
| Ohio-Sun Unit G-3-145585 | Marathon Oil Company only | Markham N.-Bay City, N (Braman) | Matagorda | 1 | 9.49K | 820K | May 1993 – May 1998 |
| Blessing -S- G-3-129850 | Sue-Ann Operating, L.C. only | Blessing (8300 Blessing) | Matagorda | 1 | 9.48K | 1.87M | by Jan 1993 – Jan 2007 |
| Langham, M. G. G-3-138963 | Red Wolf Oil Company, Inc. only | Nance (Tex-Miss # 5) | Matagorda | 1 | 9.36K | 1.84M | by Jan 1993 – Apr 2007 |
| Sittel GU G-3-210879 | EOG Resources, Inc. only | Nance (Tex-Miss # 5) | Matagorda | 1 | 9.28K | 1.83M | Jul 2005 – Apr 2010 |
| Harriman G-3-202606 | Hemco Development, LLC only | Pheasant (McDonald) | Matagorda | 1 | 9.23K | 580K | May 2004 – Jan 2015 |
| Sittel GU G-3-189735 | EOG Resources, Inc. only | Nance (AB-20) | Matagorda | 1 | 9.21K | 874K | May 2002 – Nov 2004 |
| Hunt, Harold N. G-3-205475 | Hunt Oil Company only | Turtle Creek (9200 Sand) | Matagorda | 1 | 9.2K | 381K | Oct 2004 – Dec 2010 |
| State Tract 110 G-3-110845 | Cameron, Paul E., Jr., Inc. only | Turtle Point (1ST Text. Miss SD) | Matagorda | 1 | 9.19K | 32.1K | by Jan 1993 – Apr 1999 |
| Regnier Unit G-3-208770 | Cyber Enviro-Tech Inc only | Palacios (Melbourn E-3 Seg C) | Matagorda | 1 | 9.12K | 2.99M | Mar 2005 – Oct 2025 |
| Burke, Frances P. et Al G-3-70715 | CLR Secondary Recovery, LLC only | Mellon (10500) | Matagorda | 1 | 9.11K | 874K | by Jan 1993 – Apr 2019 |
| Wolf, Louis G-3-157017 | Richman Petroleum Corp. only | Lucky, West ( Wolf) | Matagorda | 1 | 9.04K | 238K | Jul 1995 – Apr 1996 |
| Huebner-Conklin G-3-242052 | Welderxp Ltd. only | Lucky, South (Frio TM-8) | Matagorda | 1 | 8.97K | 185K | Oct 2006 – Aug 2008 |