| Robertson, W. T. O-3-8172 | Oak Energy, LLC only | Sugar Valley (Talcott) | Matagorda | 3 | 3.5K | 9.53K | by Jan 1993 – Feb 1994 |
| Keller, A. L. G-3-148752 | Red Wolf Oil Company, Inc. only | Nance (Frio 9600) | Matagorda | 1 | 3.5K | 411K | Feb 1994 – Feb 2009 |
| Doss, W. G-3-138399 | Union Pacific Resources Company only | Wadsworth (I-Sand) | Matagorda | 1 | 3.46K | 199K | by Jan 1993 – Jan 1995 |
| Ohio-Sun Unit G-3-161072 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay CITY,N(MARK.7900) | Matagorda | 1 | 3.45K | 182K | Dec 1996 – Mar 2000 |
| Ohio Sun Unit G-3-148229 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay City, N (W. 1 UP) | Matagorda | 1 | 3.44K | 1.58M | Feb 1994 – Oct 2008 |
| Nelsen, G. A. et al - State G.U. G-3-147663 | Unit Petroleum Company only | Collegeport, North (C-2 Sand) | Matagorda | 1 | 3.44K | 272K | Sep 1993 – Oct 1997 |
| Trull, R.B. et Al G-3-250660 | Deep Rock Resources, Inc. only | Ashby (8550 Sand) | Matagorda | 1 | 3.42K | 134K | Mar 2009 – Jan 2018 |
| Sisk 40 Acres O-3-2994 | KZ Global Energy, LLC only | Markham | Matagorda | 5 | 3.38K | 0 | Jun 1995 – Jul 2026 |
| Collins O-3-26215 | North Lake Resources LLC only | Pheasant (Eberstein) | Matagorda | 1 | 3.38K | 0 | Dec 2012 – Dec 2015 |
| Harriman, W. H. O-3-24229 | Sue-Ann Operating, L.C. only | Pheasant (F-18) | Matagorda | 1 | 3.34K | 0 | Jun 2002 – Feb 2006 |
| Ohio-Sun Unit G-3-151973 | Marathon Oil Company only | Markham N.-Bay City, N (Everett) | Matagorda | 1 | 3.34K | 435K | Nov 1994 – Jan 1998 |
| Holsworth, H.M. O-3-19525 | Apache Corporation only | Collegeport (8A, South) | Matagorda | 1 | 3.32K | 17.6K | by Jan 1993 – Nov 1993 |
| Buckeye G-3-57730 | Gaither Petroleum Corporation only | Wilson Creek (Frio 10400) | Matagorda | 1 | 3.29K | 77.2K | by Jan 1993 – Feb 2009 |
| Robertson, W. T. G-3-153021 | Houston Hydrocarbons, Inc. (A) only | Sugar Valley (Boutte 8550) | Matagorda | 1 | 3.28K | 182K | Feb 1995 – Jun 1997 |
| Wendt Gas Unit G-3-181003 | EOG Resources, Inc. only | Jennings Lake (Truitt C) | Matagorda | 1 | 3.23K | 90.2K | Jan 2001 – Apr 2001 |
| Blessing Pierce O-3-6304 | Hugoton Operating Company, Inc. only | Blessing (F-12) | Matagorda | 3 | 3.17K | 33.6K | by Jan 1993 – Aug 1993 |
| Harrison, L.S. O-3-17250 | Unit Petroleum Company only | Palacios (C-2) | Matagorda | 1 | 3.16K | 27.4K | by Jan 1993 – Feb 1996 |
| Norris G-3-295268 | Ponderosa Oil & Gas, LLC only | Nance (Tex-Miss # 3) | Matagorda | 1 | 3.13K | 470K | Jun 2023 – Aug 2026 |
| Moore Unit G-3-168782 | Gel Petroleum, Inc. only | Bay City, East (10300 Frio) | Matagorda | 1 | 3.12K | 858K | Apr 1998 – Aug 2006 |
| Rehak G-3-257522 | Atlas Operating LLC only | Silverspoon (Tex SA1 Sand) | Matagorda | 1 | 3.12K | 361K | Jun 2010 – May 2022 |
| Metzger Gas Unit G-3-5129 | Atlas Operating LLC only | Bay City, East ( 9900 B) | Matagorda | 1 | 3.06K | 1.16M | by Jan 1993 – Aug 2023 |
| Cobb, F. G. -B- O-3-23431 | Apache Corporation only | Bay City (7200 Frio) | Matagorda | 1 | 3.04K | 19.2K | Mar 1998 – Jun 1998 |
| Ohio-Sun Unit G-3-152813 | Marathon Oil Company only | Markham N.-Bay City, N (Braman) | Matagorda | 1 | 2.98K | 192K | Jan 1995 – Dec 1998 |
| Rehak G-3-219892 | Linn Operating, Inc. only | Silverspoon (Tex SA1 Sand) | Matagorda | 1 | 2.96K | 1.54M | Feb 2006 – Nov 2011 |
| Cornelius, L. G-3-294633 | Rumble Energy LLC only | Wadsworth, S. (Savage 10,100) | Matagorda | 1 | 2.96K | 57.2K | Nov 2022 – Jan 2024 |
| Reinke Estate G-3-48231 | EOG Resources, Inc. only | Hamman, East (10,100 Frio) | Matagorda | 1 | 2.93K | 223K | by Jan 1993 – Jan 2001 |
| Pierce G-3-198275 | Cyber Enviro-Tech Inc only | Palacios (Melbourn E-3 Seg C) | Matagorda | 1 | 2.88K | 815K | Nov 2003 – Aug 2015 |
| Terry, R.E. Estate G-3-85487 | Brown & Borelli, Inc. only | Blessing, NE. (F-16) | Matagorda | 1 | 2.85K | 395K | by Jan 1993 – Sep 2017 |
| Lewis G-3-249847 | Tri-C Resources Partners I, LLC only | Bucks Bayou (Frio Tex 2) | Matagorda | 1 | 2.84K | 1.68M | May 2009 – Aug 2026 |
| Cornelius B O-3-24351 | Wagner & Brown, Ltd. only | Wadsworth, S. (11100) | Matagorda | 1 | 2.84K | 105K | Nov 2002 – Mar 2003 |
| Cobb, F. G. "B" G-3-173976 | Apache Corporation only | Bay City (8000 Frio) | Matagorda | 1 | 2.84K | 152K | Jul 1999 – Jan 2002 |
| Cornelius, L. G-3-224599 | Bluefin Resources LLC only | Wadsworth, S. (Savage 10,100) | Matagorda | 1 | 2.8K | 109K | Sep 2006 – Jul 2016 |
| Spencer, Angeline O-3-20514 | Umc Petroleum Corporation only | Sugar Valley (Talcott A) | Matagorda | 1 | 2.8K | 2.79K | by Jan 1993 – Apr 1995 |
| Sittel GU G-3-226261 | EOG Resources, Inc. only | Nance (Tex-Miss # 5) | Matagorda | 1 | 2.79K | 426K | Feb 2007 – Feb 2008 |
| Lewis, J. C. G-3-212981 | Atlas Operating LLC only | Duncan Slough (Frio Cons.) | Matagorda | 1 | 2.78K | 137K | Jan 2001 – Jul 2009 |
| Weinheimer G-3-117722 | Costilla Energy, Inc. only | El Maton (Frio 10778) | Matagorda | 1 | 2.78K | 136K | by Jan 1993 – Aug 1997 |
| Runnells Gas Unit G-3-195103 | Wynn-Crosby Operating, Ltd. only | Grand Slam (Claughton) | Matagorda | 1 | 2.76K | 92K | Jun 2002 – Aug 2003 |
| Thomasson, Sadie E. O-3-8149 | Oak Energy, LLC only | Sugar Valley, N. (Laurence) | Matagorda | 2 | 2.76K | 0 | Nov 1997 – Apr 2004 |
| St. Andrew G-3-174467 | Ventex Operating Corp. only | Rusty (14,600) | Matagorda | 1 | 2.74K | 166K | Mar 1999 – Jul 2005 |
| Norris G-3-290857 | Ponderosa Oil & Gas, LLC only | Nance (AB-20) | Matagorda | 1 | 2.72K | 703K | May 2021 – May 2023 |
| Ottis, Matt K. O-3-14570 | Sideline Energy Inc. only | Wadsworth (11380) | Matagorda | 1 | 2.71K | 38 | by Jan 1993 – Apr 1997 |
| Langham G-3-289900 | Ponderosa Oil & Gas, LLC only | Nance (Frio 11,400) | Matagorda | 1 | 2.7K | 599K | Nov 2020 – Oct 2022 |
| Gracey Unit G-3-138138 | Amoco Production Company only | Old Ocean (Armstrong) | Matagorda | 1 | 2.68K | 179K | by Jan 1993 – Dec 1994 |
| Moore Estates G-3-243799 | Texian Operating Company, LLC only | Bay City (8300) | Matagorda | 1 | 2.67K | 95.6K | Jun 2008 – May 2021 |
| Taylor G-3-192726 | EOG Resources, Inc. only | Sugar Valley, S. (Tex-2) | Matagorda | 1 | 2.64K | 556K | Dec 2002 – Jan 2004 |
| Spencer, Angeline O-3-8087 | Devon Energy Production Co, L.P. only | Sugar Valley (Frio 9,195) | Matagorda | 2 | 2.61K | 7.13K | by Jan 1993 – Jan 1997 |
| Simpson, W. M. G-3-196818 | Sue-Ann Operating, L.C. only | Pheasant (Simpson) | Matagorda | 1 | 2.61K | 455K | Aug 2003 – Apr 2006 |
| Norris G-3-294260 | Ponderosa Oil & Gas, LLC only | Nance (Tex-Miss # 5) | Matagorda | 1 | 2.59K | 459K | Aug 2022 – Jul 2024 |
| Nelsen "C" G-3-225932 | Sandel Operating Company only | Palacios, East (Frio 9180 Sand) | Matagorda | 1 | 2.57K | 87.3K | Nov 2006 – May 2012 |
| Goodall-Doss Gas Unit G-3-191857 | EOG Resources, Inc. only | Wadsworth, S. (11100) | Matagorda | 1 | 2.57K | 72.5K | Nov 2002 – Apr 2004 |