| Ohio-Sun Unit G-3-174200 | Marathon Oil Company only | Markham N.-Bay City, N (Braman) | Matagorda | 1 | 840 | 38.3K | Sep 1999 – Oct 2000 |
| McDonald, E. L. G-3-179553 | EOG Resources, Inc. only | Markham, N. (Anomalina B Lower) | Matagorda | 1 | 795 | 67.1K | Jul 2000 – Nov 2000 |
| Ohio Sun Unit G-3-147912 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay City, N (7150) | Matagorda | 1 | 626 | 66.3K | Dec 1993 – May 1994 |
| Ohio-Sun Unit O-3-10525 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay City,n (7150-A) | Matagorda | 4 | 602 | 1.46K | Aug 2020 – Dec 2020 |
| Ohio-Sun Unit G-3-157290 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay City, N (W. 1 UP) | Matagorda | 1 | 545 | 224K | Dec 1995 – Feb 2000 |
| Ohio-Sun Unit G-3-293605 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay City, N (Braman) | Matagorda | 1 | 404 | 95.2K | Oct 2022 – Aug 2026 |
| Ohio-Sun Unit G-3-177417 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay CITY,N(MARK.7900) | Matagorda | 1 | 374 | 182K | May 2000 – Aug 2026 |
| Ohio-Sun Unit G-3-150259 | Premier Natural Resources, LLC only | Markham N.-Bay City, N (League) | Matagorda | 1 | 340 | 7.85K | Jun 1994 – Jun 1995 |
| Ohio-Sun Unit G-3-151974 | Comstock Oil & Gas, Inc. only | Markham N.-Bay CITY,N(MARK.7900) | Matagorda | 1 | 334 | 70.8K | Nov 1994 – Aug 1997 |
| Sisk, R. J. Etal 10 Acres O-3-2993 | Pace Oil and Gas Company only | Markham | Matagorda | 1 | 324 | 9 | by Jan 1993 – Sep 1993 |
| Ohio - Sun Unit G-3-162957 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay City, N (Ross) | Matagorda | 1 | 147 | 21.4K | Apr 1997 – Dec 1997 |
| Ohio Sun Unit G-3-186480 | Marathon Oil Company only | Markham N-Bay CITY,N(CHOATE7100) | Matagorda | 1 | 87 | 981 | Apr 2001 – Jun 2001 |
| Ohio-Sun Unit G-3-100771 | Comstock Oil & Gas, Inc. only | Markham N.-Bay City,n (McDonald) | Matagorda | 1 | 84 | 38.2K | Jun 1994 – Oct 2002 |
| Ohio-Sun Unit G-3-171403 | Marathon Oil Company only | Markham N.-Bay City, N (Braman) | Matagorda | 1 | 78 | 96.1K | Dec 1998 – Apr 2000 |
| Ohio Sun Unit G-3-182598 | Remora Management, LLC only | Markham N.-Bay City,n (McDonald) | Matagorda | 1 | 76 | 23.4K | Apr 2001 – Jun 2002 |
| Trull-Meyers O-3-28032 | KZ Global Energy, LLC only | Markham | Matagorda | 2 | 74 | 0 | Jun 2024 – Jul 2026 |
| Meyers -D- O-3-2989 | HLS Producing, Inc. only | Markham | Matagorda | 7 | 18 | 2 | by Jan 1993 – Mar 1993 |
| South Texas Land L.P. O-3-22731 | Pace Oil and Gas Company only | Markham | Matagorda | 1 | 14 | 0 | Jul 1995 – Oct 1995 |
| Ohio-Sun Unit O-3-10611 | Goldking Minerals Mgmt, L.L.C. only | Markham,n.-Bay City,n (7500 A) | Matagorda | 7 | 13 | 0 | Sep 2012 – Sep 2012 |
| Ohio-Sun Unit G-3-199351 | Remora Management, LLC only | Markham N.-Bay City, N (W. 3 UP) | Matagorda | 1 | 9 | 493K | Jan 2004 – Jun 2011 |
| Coastal Texas Mineral Venture G-3-179575 | Suemaur Expl. & Prod., LLC only | Markham | Matagorda | 1 | 2 | 1.05M | Jun 2000 – Apr 2014 |
| Ohio-Sun Unit G-3-176904 | Marathon Oil Company only | Markham N.-Bay City, N (W. 2 UP) | Matagorda | 1 | 1 | 82.3K | Apr 2000 – Feb 2001 |
| Meyers, N. R., -B- G-3-7256 | H Oil Company, Inc. only | Markham (2000) | Matagorda | 1 | 0 | 0 | — |
| Ohio Sun Unit G-3-7273 | Premier Natural Resources, LLC only | Markham N.-Bay City, N (Braman) | Matagorda | 1 | 0 | 0 | — |
| Ohio Sun Unit G-3-7294 | Premier Natural Resources, LLC only | Markham N.-Bay City, N (W. 1 UP) | Matagorda | 1 | 0 | 0 | — |
| Ohio-Sun Unit G-3-41446 | Premier Natural Resources, LLC only | Markham N.-Bay City,n (McDonald) | Matagorda | 1 | 0 | 0 | — |
| Sisk, R. J. et al 10 Acre G-3-65718 | Pace Oil and Gas Company only | Markham (Frio) | Matagorda | 1 | 0 | 0 | — |
| Rycade G-3-70590 | H Oil Company, Inc. only | Markham (Frio) | Matagorda | 1 | 0 | 0 | — |
| Ohio Sun Unit G-3-104148 | Marathon Oil Company only | Markham N.-Bay CITY,N(MARK.7900) | Matagorda | 1 | 0 | 0 | — |
| McFarland, Robert et Al G-3-106542 | Pennzoil Exploration & Prod. Co. only | Pledger (Markham 7700) | Brazoria | 1 | 0 | 0 | — |
| Ohio Sun Unit G-3-128520 | Marathon Oil Company only | Markham N.-Bay CITY,N(MARK.7900) | Matagorda | 1 | 0 | 0 | — |
| Markham-Daley G-3-131319 | Mojac Energy Corp. only | Magnet Withers (Miocene 2600) | Wharton | 1 | 0 | 0 | — |
| Ohio-Sun Unit G-3-176261 | Premier Natural Resources, LLC only | Markham N.-Bay City, N (League) | Matagorda | 1 | 0 | 8.22K | Feb 2000 – May 2001 |
| Ohio-Sun Unit G-3-205763 | Comstock Oil & Gas, LP only | Markham N.-Bay CITY,N(MARK.7900) | Matagorda | 1 | 0 | 7.64K | Dec 2004 – Feb 2005 |
| Ohio-Sun Unit G-3-207866 | Comstock Oil & Gas, LP only | Markham N.-Bay City, N (Braman) | Matagorda | 1 | 0 | 0 | — |
| Pena G-3-215063 | Gemarmi Inc. only | Markham | Matagorda | 1 | 0 | 64.8K | Apr 2006 – May 2007 |
| Ohio-Sun G-3-255512 | Premier Natural Resources, LLC only | Markham N.-Bay City, N (Cayce) | Matagorda | 1 | 0 | 0 | — |
| Ohio-Sun Unit G-3-272915 | Remora Management, LLC only | Markham N.-Bay City, N (W. 1 UP) | Matagorda | 1 | 0 | 220K | Feb 2012 – Dec 2014 |
| Ohio-Sun Unit G-3-283848 | Allegiant Resources, LLC only | Markham N.-Bay City,n(cornelius) | Matagorda | 1 | 0 | 260K | Sep 2017 – Jul 2020 |
| Markham G-8-99028 | Morris Operating Co only | Trickham (Crosscut, Lo.) | Coleman | 1 | 0 | 0 | — |
| Markham, Jack Fee G-11-127838 | Plains Petroleum Operating Co. only | Tex-Mex | Gaines | 1 | 0 | 0 | — |
| Markham G-14-117791 | G E Operating, Inc. only | Allison Parks (Morrow, Up.) | Hemphill | 1 | 0 | 334 | May 1993 – May 1994 |
| Turner, A. B., Fee NCT-1 O-3-4964 | Lagarto Company, The only | Markham | Matagorda | 2 | 0 | 0 | — |
| McDonald, E. L., a/C 2 O-3-8125 | Marathon Oil Company only | Markham N.-Bay City, N (Bay) | Matagorda | 1 | 0 | 0 | — |
| Ohio-Sun Unit O-3-10416 | Marathon Oil Company only | Markham, N.-Bay City, N. (7550) | Matagorda | 2 | 0 | 0 | — |
| Ohio-Sun Unit O-3-10563 | Marathon Oil Company only | Markham,n.-Bay City, N (6700) | Matagorda | 1 | 0 | 0 | — |
| Ohio-Sun Unit O-3-10812 | Marathon Oil Company only | Markham N.-Bay CITY,N(7300) | Matagorda | 1 | 0 | 0 | — |
| Ohio-Sun Unit O-3-11248 | Marathon Oil Company only | Markham, N.-Bay City, N. (7100) | Matagorda | 1 | 0 | 0 | — |
| Meyers et al "C" O-3-16837 | Lagarto Company, The only | Markham | Matagorda | 1 | 0 | 0 | — |
| Camp et Al O-3-21349 | Hamman Oil & Refining Company only | Markham, East (6900) | Matagorda | 1 | 0 | 0 | — |