| River Ranch -a-/Williams State U O-2-9301 | T-C Oil Company, LLC only | Anaqua (3100) | Refugio | 12 | 2M | 533K | Nov 2008 – Aug 2026 |
| River Ranch -B- State Unit O-2-9357 | T-C Oil Company, LLC only | Anaqua (3100) | Refugio | 6 | 701K | 104K | Nov 2009 – Mar 2021 |
| Roche O-2-8604 | Finaly Resources LLC only | Cactus (Frio Massive) | Refugio | 4 | 330K | 355K | Jun 2000 – Aug 2026 |
| Wood River Ranch 'B' O-2-10906 | Kebo Oil & Gas, Inc. only | Woodsboro, South (8100) | Refugio | 1 | 142K | 0 | Jun 2014 – Aug 2026 |
| Wood River Ranch 'B' O-2-10563 | Kebo Oil & Gas, Inc. only | Woodsboro (6300 Sand) | Refugio | 1 | 53.2K | 21.2K | May 2013 – Feb 2020 |
| Coastal Roche O-2-9852 | Finaly Resources LLC only | Cactus (Frio Massive) | Refugio | 1 | 40.6K | 57.1K | Jul 2011 – Sep 2021 |
| Shelton, J. Isabella -C- O-2-1080 | High Plains Gas Systems, Inc. only | Mission River | Refugio | 1 | 40.1K | 10.4K | by Jan 1993 – Jun 2004 |
| Scanio/Shelton O-2-8976 | High Plains Gas Systems, Inc. only | Mission River (6000) | Refugio | 1 | 32.5K | 27.7K | Feb 2005 – Sep 2015 |
| Scanio/Shelton G-2-241967 | High Plains Gas Systems, Inc. only | Mission River (8300 Vksbg) | Refugio | 1 | 30.2K | 611K | Aug 2008 – Dec 2014 |
| Scanio Shelton O-2-8937 | Acock/Anaqua Operating Co., LP only | Mission River | Refugio | 1 | 24.4K | 98.4K | Jan 2005 – Apr 2009 |
| O'Connor, Martin -B- O-2-9009 | T - C Oil Company only | Lower River Pasture (7800) | Refugio | 1 | 22.1K | 88.6K | Sep 2005 – Aug 2007 |
| Scanio/Shelton G-2-212390 | Acock/Anaqua Operating Co., LP only | Mission River | Refugio | 1 | 20.4K | 196K | Apr 2005 – Apr 2015 |
| Roche O-2-9265 | Salida Exploration, LLC only | Cactus (Frio Massive) | Refugio | 3 | 19.9K | 275K | Jun 2008 – Jun 2010 |
| Scanio Shelton G-2-252998 | Paloma Operating, LLC only | Mission River (6100) | Refugio | 1 | 18.7K | 57.8K | May 2009 – Jun 2023 |
| Roche G-2-175282 | Wiser Oil Company, The only | Cactus (Frio Massive) | Refugio | 1 | 18.2K | 319K | Jun 1999 – Jun 2001 |
| Scanio Shelton O-2-9224 | Acock/Anaqua Operating Co., LP only | Mission River (6400) | Refugio | 1 | 17.8K | 32.8K | Apr 2008 – Feb 2015 |
| Scanio / Shelton G-2-223050 | High Plains Gas Systems, Inc. only | Mission River (8300 Vksbg) | Refugio | 1 | 13.7K | 874K | Mar 2006 – Nov 2010 |
| O'Connor, M.V. Estate O-2-6472 | Freeman, James C. only | Greta (Massive Catahoula) | Refugio | 1 | 12.8K | 10K | by Jan 1993 – Apr 2000 |
| Wood River Ranch 'B' O-2-10234 | Kebo Oil & Gas, Inc. only | Woodsboro (6500) | Refugio | 1 | 12.5K | 6.79K | May 2012 – Mar 2016 |
| Mitchell, John N. O-2-3246 | High Plains Gas Systems, Inc. only | Mission River | Refugio | 1 | 11.6K | 10.5K | by Jan 1993 – Mar 2000 |
| Rea, W. L. O-2-1369 | Mission River Systems, Inc. only | Refugio Heard (Area) | Refugio | 7 | 11.4K | 3.79K | Mar 1993 – Aug 2009 |
| Roche G-2-258523 | Salida Exploration, LLC only | Cactus (Frio Massive) | Refugio | 1 | 10.6K | 631K | May 2010 – Nov 2015 |
| O'Connor, Martin -D- O-2-9013 | T - C Oil Company only | Lower River Pasture (6300) | Refugio | 1 | 8.32K | 100K | Oct 2005 – Sep 2006 |
| Scanio/Shelton G-2-234544 | High Plains Gas Systems, Inc. only | Mission River (8400) | Refugio | 1 | 7.32K | 268K | Jan 2008 – Nov 2010 |
| Scanio/Shelton G-2-221611 | High Plains Gas Systems, Inc. only | Mission River (8400) | Refugio | 1 | 6.3K | 210K | Aug 2006 – Feb 2008 |
| Scanio-Shelton G-2-205677 | Acock/Anaqua Operating Co., LP only | Mission River (6300) | Refugio | 1 | 6.07K | 245K | Nov 2004 – Feb 2015 |
| Wood River Ranch 'B' O-2-12404 | Kebo Oil & Gas, Inc. only | Woodsboro (6500) | Refugio | 1 | 5.51K | 0 | Jul 2021 – Jan 2024 |
| Scanio-Shelton O-2-11261 | Paloma Operating, LLC only | Mission River (6300) | Refugio | 1 | 5.08K | 0 | Apr 2015 – Jul 2023 |
| Scanio/Shelton G-2-243787 | High Plains Gas Systems, Inc. only | Mission River (7200) | Refugio | 1 | 4.33K | 65.2K | Jun 2008 – Jun 2015 |
| Martin O'Connor-E- G-2-225443 | T-C Oil Company, LLC only | Tivoli (Greta Second) | Refugio | 1 | 4.14K | 661K | Jan 2007 – Nov 2011 |
| Scanio/Shelton G-2-205433 | High Plains Gas Systems, Inc. only | Mission River (6300) | Refugio | 1 | 3.91K | 135K | Aug 2004 – Oct 2006 |
| Scanio/Shelton G-2-250577 | Paloma Operating, LLC only | Mission River (8400) | Refugio | 1 | 3.82K | 72.5K | Aug 2008 – Feb 2020 |
| Mitchell, John N. Unit O-2-8662 | High Plains Gas Systems, Inc. only | Mission River | Refugio | 2 | 2.62K | 65 | Sep 2001 – Jun 2004 |
| Scanio/Shelton G-2-207036 | High Plains Gas Systems, Inc. only | Mission River (6200) | Refugio | 1 | 2.5K | 136K | Jun 2004 – Dec 2008 |
| Niemann, Emil O-2-178 | Mission River Systems, Inc. only | Bonnie View | Refugio | 6 | 2.39K | 620 | by Jan 1993 – Apr 2008 |
| Scanio/Shelton O-2-8927 | High Plains Gas Systems, Inc. only | Mission River (6400) | Refugio | 1 | 2.3K | 21.6K | Aug 2004 – Aug 2006 |
| Scanio/Shelton G-2-208522 | Paloma Operating, LLC only | Mission River (5800) | Refugio | 1 | 2.29K | 65.9K | Jul 2004 – Mar 2020 |
| Scanio/Shelton G-2-220643 | Mantle Oil & Gas, LLC only | Mission River (6400) | Refugio | 1 | 2.13K | 17.8K | Sep 2006 – Apr 2009 |
| Trevino G-2-177961 | Mission River Systems, Inc. only | Refugio Old (5300) | Refugio | 1 | 2.1K | 379K | Jun 1999 – Apr 2010 |
| Roche G-2-183821 | Wiser Oil Company, The only | Cactus (Frio Massive) | Refugio | 1 | 1.59K | 135K | Feb 2000 – Jan 2001 |
| Scanio-Shelton O-2-11012 | High Plains Gas Systems, Inc. only | Mission River (5800) | Refugio | 1 | 1.51K | 0 | Nov 2013 – Sep 2015 |
| Scanio Shelton G-2-230611 | Acock/Anaqua Operating Co., LP only | Mission River (6400) | Refugio | 1 | 1.38K | 121K | Dec 2006 – Mar 2008 |
| Martin O'Connor -M- O-2-9703 | T-C Oil Company, LLC only | Tivoli (Greta Second) | Refugio | 1 | 1.13K | 117K | Oct 2011 – Jun 2015 |
| O'Connor, Joe -A- G-2-255324 | T - C Oil Company only | River Pasture (5700) | Refugio | 1 | 926 | 178K | Feb 2010 – Mar 2011 |
| Roche G-2-182263 | Wiser Oil Company, The only | Cranell, W. (Frio Massive) | Refugio | 1 | 833 | 236K | Feb 2000 – Feb 2001 |
| Wood River Ranch "D" O-2-10117 | Kebo Oil & Gas, Inc. only | Woodsboro (5750 Sand) | Refugio | 1 | 826 | 3.53K | Jan 2012 – Sep 2012 |
| Scanio/Shelton G-2-226852 | High Plains Gas Systems, Inc. only | Mission River (5800) | Refugio | 1 | 780 | 195K | Dec 2006 – Nov 2009 |
| Scanio/Shelton G-2-205432 | High Plains Gas Systems, Inc. only | Mission River (6300) | Refugio | 1 | 674 | 75.7K | Aug 2004 – Jun 2009 |
| Shelton, F. B. G-2-162263 | Lundberg Operating Corporation only | Mission River (5300) | Refugio | 1 | 639 | 77.7K | Feb 1997 – Mar 1998 |
| Scanio Shelton G-2-222184 | Paloma Operating, LLC only | Mission River (6400) | Refugio | 1 | 593 | 91.9K | Mar 2006 – Feb 2011 |