| Ohio-Sun Unit O-3-2998 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay City,n(cornelius) | Matagorda | 53 | 1.05M | 1.25M | by Jan 1993 – Aug 2026 |
| Ohio-Sun Unit O-3-2997 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay City, N (Cayce) | Matagorda | 27 | 753K | 456K | by Jan 1993 – Aug 2026 |
| Burkhart O-3-24279 | Brigham Oil & Gas, L.P. only | Provedence (Frio) | Matagorda | 1 | 339K | 2.2M | Jul 2002 – Jun 2008 |
| Gresham Gas Unit G-3-265865 | Charolais Energy, LLC only | Trull (8900) | Matagorda | 1 | 236K | 1.33M | Aug 2011 – Jul 2026 |
| Ohio-Sun Unit O-3-2996 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay City, N (Carlson) | Matagorda | 21 | 223K | 362K | by Jan 1993 – Jan 2025 |
| Kasman G-3-222272 | Rap Operating, L.L.C. only | Hamman Deep (Frio 12,000) | Matagorda | 1 | 211K | 5.91M | Apr 2006 – Jan 2019 |
| Smith, Howard, Fee O-3-2969 | Qri Industries, Inc. only | Markham | Matagorda | 34 | 183K | 20 | by Jan 1993 – Aug 2026 |
| Ohio-Sun Unit O-3-11585 | Goldking Minerals Mgmt, L.L.C. only | Markham,n.-Bay City,n (7685) | Matagorda | 9 | 120K | 139K | by Jan 1993 – Jun 2024 |
| Myers, N. R. -B- O-3-2976 | KZ Global Energy, LLC only | Markham | Matagorda | 4 | 93.3K | 50.4K | by Jan 1993 – Jul 2026 |
| Ohio-Sun Unit O-3-2999 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay City,n (McDonald) | Matagorda | 13 | 69.8K | 107K | by Jan 1993 – May 2026 |
| Milberger Gas Unit G-3-210822 | Rap Operating, L.L.C. only | Hamman, East (10,870) | Matagorda | 1 | 66.2K | 1.92M | Jun 2005 – Jan 2023 |
| Milberger Gas Unit G-3-211023 | South Bay Resources, L.L.C. only | Hamman, East (11,200 Frio) | Matagorda | 1 | 62.5K | 1.32M | Aug 2005 – May 2013 |
| Ohio-Sun Unit O-3-12601 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay City, N (Betts) | Matagorda | 12 | 58.3K | 116K | by Jan 1993 – Jun 2022 |
| Slone, L. M. O-3-1856 | Rusk Energy Operating LLC only | Hamman | Matagorda | 3 | 54K | 41 | by Jan 1993 – Aug 2026 |
| Talafuse G-3-212241 | South Bay Resources, L.L.C. only | Hamman, East (11,200 Frio) | Matagorda | 1 | 53.8K | 1.5M | Nov 2005 – Dec 2011 |
| Runnells O-3-27630 | Fairway Operating, Inc. only | Markham N.-Bay City, N (Carlson) | Matagorda | 1 | 53.2K | 46.8K | Sep 2019 – Aug 2026 |
| Milberger, F. J. G-3-222480 | Rap Operating, L.L.C. only | Hamman, East (11,200 Frio) | Matagorda | 1 | 43.2K | 1.51M | Aug 2006 – Jan 2022 |
| Arnold Heirs G-3-223833 | Houston Energy, L.P. only | Hamman, East ( Richer) | Matagorda | 1 | 41.9K | 1.07M | Feb 2007 – Dec 2009 |
| Hudson, T. E., Mrs., O/A O-3-2972 | Reo Operating LLC only | Markham | Matagorda | 2 | 41.7K | 19 | by Jan 1993 – Aug 2026 |
| Goolsbee G-3-234911 | Rap Operating, L.L.C. only | Hamman, East (11,200 Frio) | Matagorda | 1 | 39.5K | 946K | Sep 2007 – Jan 2023 |
| Meyers -F- O-3-2987 | KZ Global Energy, LLC only | Markham | Matagorda | 2 | 37.4K | 20 | by Jan 1993 – Jul 2026 |
| Miller, L. H. Gas Unit G-3-151805 | Hamman Oil & Refining Company only | Jennings Lake (Frio 9500) | Matagorda | 1 | 37.3K | 825K | Dec 1994 – Nov 1997 |
| Talafuse Gas Unit G-3-254779 | Amrwr, LLC only | Hamman, East (11,200 Frio FB B) | Matagorda | 1 | 34.2K | 755K | Jun 2008 – Jan 2023 |
| Cleveland, May O-3-1852 | Rusk Energy Operating LLC only | Hamman | Matagorda | 4 | 33.8K | 41 | by Jan 1993 – Jul 2026 |
| Milberger Gas Unit G-3-246582 | South Bay Resources, L.L.C. only | Hamman, East (11,200 Frio) | Matagorda | 1 | 27.1K | 303K | Feb 2008 – Jul 2010 |
| Goolsbee G-3-250050 | Rap Operating, L.L.C. only | Hamman, East (11,150) | Matagorda | 1 | 27K | 451K | Jul 2008 – May 2022 |
| Meyers Etal O-3-2985 | Bomco USA, Inc. only | Markham | Matagorda | 2 | 25.4K | 20 | by Jan 1993 – Jul 2013 |
| Rycade O-3-2978 | KZ Global Energy, LLC only | Markham | Matagorda | 2 | 24.6K | 28 | by Jan 1993 – Jul 2026 |
| Grimes GU G-3-216896 | South Bay Resources, L.L.C. only | Hamman, East (11,500) | Matagorda | 1 | 23.4K | 1.1M | Aug 2006 – Aug 2010 |
| Crooker O-3-1853 | Rusk Energy Operating LLC only | Hamman | Matagorda | 2 | 20.3K | 41 | by Jan 1993 – Nov 2021 |
| Slone, L. M., -A- O-3-6277 | Rusk Energy Operating LLC only | Hamman | Matagorda | 1 | 20.2K | 41 | by Jan 1993 – Mar 2021 |
| Grisham G-3-216124 | Hilcorp Energy Company only | Bouldin Lake (Lower Frio) | Matagorda | 1 | 19.5K | 484K | Nov 2005 – Apr 2015 |
| Richers, E. O-3-1855 | Rusk Energy Operating LLC only | Hamman | Matagorda | 1 | 18.9K | 41 | by Jan 1993 – Mar 2020 |
| Milberger G-3-209426 | Rap Operating, L.L.C. only | Hamman, East (11,200 Frio) | Matagorda | 1 | 17.4K | 239K | Dec 2004 – Jul 2010 |
| Myers, N. R. O-3-2977 | KZ Global Energy, LLC only | Markham | Matagorda | 2 | 16.4K | 22 | by Jan 1993 – Jul 2026 |
| Horak Gas Unit G-3-225126 | South Bay Resources, L.L.C. only | Hamman, East (11,200 Frio) | Matagorda | 1 | 15K | 342K | Jan 2007 – Jul 2010 |
| Ohio-Sun Unit G-3-167197 | Remora Management, LLC only | Markham N.-Bay CITY,N(MARK.7900) | Matagorda | 1 | 13.6K | 263K | Feb 1998 – Apr 2002 |
| Ohio-Sun Unit G-3-147825 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay City, N (Braman) | Matagorda | 1 | 12.9K | 865K | Dec 1993 – Feb 2018 |
| Miller, L. H. Gas Unit G-3-118943 | Hamman Oil & Refining Company only | Jennings Lake (Frio 9500) | Matagorda | 1 | 12.6K | 276K | by Jan 1993 – Jan 1996 |
| Talafuse G-3-224009 | South Bay Resources, L.L.C. only | Hamman, East (11,200 Frio) | Matagorda | 1 | 12.1K | 515K | Sep 2006 – Jan 2012 |
| Talafuse Gas Unit G-3-257003 | Rap Operating, L.L.C. only | Hamman, East ( FB A) | Matagorda | 1 | 11.7K | 488K | Sep 2008 – May 2012 |
| Ohio-Sun Unit G-3-173821 | Comstock Oil & Gas, Inc. only | Markham,n.-Bay CITY,N.(7500) | Matagorda | 1 | 11.7K | 390K | Jul 1999 – Dec 2001 |
| McWilliams Oil Unit O-3-25759 | Atlas Operating LLC only | Hamman | Matagorda | 1 | 11K | 115K | Feb 2011 – Dec 2015 |
| Richers, E. O-3-23404 | Rosenthal, Stanley H. Estate Of only | Hamman (-P- Sand) | Matagorda | 1 | 10.8K | 0 | Apr 1997 – Jun 2013 |
| Huebner Trusts O-3-25859 | Red Wolf Oil Company, Inc. only | Hamman (9500 Frio) | Matagorda | 1 | 10.7K | 69.3K | Mar 2011 – Aug 2013 |
| Slone, L.M. O-3-23324 | Rusk Energy Operating LLC only | Hamman (8900) | Matagorda | 1 | 10.2K | 0 | Apr 1997 – Mar 2021 |
| 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 |
| 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 |
| 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 |
| Hudson, J. A. O-3-25623 | Olenox Corp. only | Markham | Matagorda | 3 | 8.85K | 0 | Aug 2010 – Sep 2020 |