| Valley G-4-206475 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 243K | 4.69M | Nov 2004 – Aug 2026 |
| Apex GU G-4-199536 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 195K | 5.01M | Nov 2003 – Aug 2026 |
| Baines, W. M. O-4-10357 | Proline Energy Resources Inc only | Midway, S. (Dubose) | San Patricio | 3 | 191K | 1.87M | by Jan 1993 – Mar 2025 |
| Valley G-4-200931 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 165K | 1.36M | Mar 2004 – Dec 2025 |
| Crites A G-4-212182 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 158K | 3.48M | Jun 2005 – Dec 2025 |
| Smith L G-4-205634 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 129K | 3.39M | Oct 2004 – Jun 2026 |
| Priday Unit G-4-164809 | Proline Energy Resources Inc only | Geronimo (Frio Lower) | San Patricio | 1 | 110K | 1.22M | Sep 1997 – Jun 2026 |
| Knipe Gas Unit G-4-135931 | Proline Energy Resources Inc only | Midway, East (10700) | San Patricio | 1 | 107K | 6.09M | by Jan 1993 – Aug 2024 |
| Crites G.U. G-4-269762 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 107K | 1.19M | Dec 2012 – Dec 2019 |
| Shell "C" G-4-209899 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 104K | 1.72M | May 2005 – Aug 2026 |
| Welder, J.F. Heirs O-4-12778 | Proline Energy Resources Inc only | Angelita New (Frio) | San Patricio | 2 | 79.5K | 907K | Mar 1998 – Jul 2026 |
| Bell Farms G-4-204937 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 72.7K | 1.14M | Sep 2004 – Jun 2025 |
| Campbell, J. Est GU G-4-97772 | Proline Energy Resources Inc only | Commonwealth (Dubose A) | San Patricio | 1 | 67.9K | 1.6M | by Jan 1993 – Apr 2023 |
| Smith L G-4-266020 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 67.3K | 543K | Oct 2012 – Oct 2025 |
| Smith L G-4-214800 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 66.3K | 1.65M | Nov 2005 – May 2025 |
| Valley G-4-226861 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 64.2K | 747K | Mar 2007 – Aug 2026 |
| Hunt, Jeffery Davis O-4-13504 | Proline Energy Resources Inc only | Geronimo, N. (N-2 10300) | San Patricio | 1 | 54.7K | 276K | Sep 2008 – Jun 2024 |
| Jones Estate G-4-226744 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 53.3K | 4.25M | Apr 2007 – Jul 2026 |
| Knipe G-4-68164 | Proline Energy Resources Inc only | Midway, East (10700) | San Patricio | 1 | 50.2K | 1.52M | by Jan 1993 – Aug 2024 |
| Bell Farms G-4-216716 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 43K | 2.32M | Jan 2006 – Aug 2026 |
| Apex GU G-4-224307 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 37.8K | 1.49M | Jan 2007 – Jun 2015 |
| Jones Estate G-4-216031 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 34.9K | 2.62M | Feb 2006 – Apr 2026 |
| Smith "L" G-4-108840 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 30.7K | 1.14M | by Jan 1993 – Aug 2024 |
| Welch G-4-191862 | American Shoreline, Inc. only | White Point E. DP (Commonwealth) | San Patricio | 1 | 29K | 545K | Aug 2002 – Jul 2004 |
| Crites A G-4-219672 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 25.1K | 972K | Jan 2006 – Dec 2025 |
| Shell E G-4-268961 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 21K | 293K | Oct 2012 – Aug 2026 |
| Shell G-4-243618 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 20.7K | 602K | Aug 2008 – Dec 2025 |
| Davis G-4-218885 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 17K | 1.61M | Feb 2006 – Jun 2026 |
| Hoskinson "A" G-4-234897 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 16.9K | 541K | Jan 2008 – Dec 2025 |
| Welder Ranch G-4-199173 | Proline Energy Resources Inc only | Angelita New (Frio) | San Patricio | 1 | 16.3K | 626K | Oct 2003 – Jul 2026 |
| Davis G-4-230034 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 14.9K | 1.42M | Aug 2007 – Jun 2026 |
| Smith, Carl G-4-80110 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 14.8K | 1.75M | by Jan 1993 – Mar 2022 |
| Prochaska Oil Unit O-2-8527 | C & E Operating, Inc. only | Beeline (Tynan Sand) | San Patricio | 1 | 12.7K | 0 | Feb 2000 – Mar 2003 |
| Solar O-4-13362 | American Shoreline, Inc. only | White Point, E. (Heep, LO) | San Patricio | 1 | 12.1K | 8.64K | Mar 2006 – Jun 2008 |
| Welder Ranch O-4-13209 | Proline Energy Resources Inc only | O'Neil (6020) | San Patricio | 1 | 11.1K | 213K | Oct 2003 – Nov 2009 |
| Mauch-Angeline Unit B O-4-14080 | Welderxp Ltd. only | Plymouth (5120) | San Patricio | 1 | 10.4K | 0 | Jun 2018 – Mar 2020 |
| Angeline O-4-14082 | Welderxp Ltd. only | Plymouth, East (4300) | San Patricio | 1 | 8.76K | 0 | Jun 2018 – Jun 2021 |
| Welder Ranch G-4-184917 | Proline Energy Resources Inc only | Angelita New (Frio) | San Patricio | 1 | 8.68K | 204K | Aug 2001 – Jul 2026 |
| Crites 'A' G-4-284800 | Proline Energy Resources Inc only | Midway, S. (Anderson) | San Patricio | 1 | 7.35K | 381K | Feb 2018 – Jun 2026 |
| Solar Ficke O-4-12692 | American Shoreline, Inc. only | White Point, E. (5630) | San Patricio | 1 | 5.26K | 10.7K | Jul 1997 – Aug 1998 |
| Welder Ranch G-4-147511 | Proline Energy Resources Inc only | Oneil (5300) | San Patricio | 1 | 4.9K | 1.92M | Jun 1993 – Jul 2026 |
| Areto-Solar G-4-187670 | American Shoreline, Inc. only | White Point, East (Heep) | San Patricio | 1 | 4.7K | 354K | Feb 2002 – Sep 2003 |
| Welder Ranch G-4-135283 | Proline Energy Resources Inc only | O'Neil (6700) | San Patricio | 1 | 4.42K | 380K | by Jan 1993 – Jul 2026 |
| Welch O-4-13356 | American Shoreline, Inc. only | White Point, E. (5850) | San Patricio | 1 | 4.3K | 44.6K | Feb 2006 – Aug 2007 |
| Thomas O-4-14213 | American Shoreline, Inc. only | Willmann, North (4200 Sand) | San Patricio | 1 | 3.67K | 0 | Feb 2023 – Jul 2026 |
| Welder Ranch G-4-129719 | Proline Energy Resources Inc only | O'Neil (4800) | San Patricio | 1 | 3.59K | 1.11M | by Jan 1993 – Jul 2026 |
| Mauch-Angeline Unit A O-4-14081 | Welderxp Ltd. only | Plymouth (5120) | San Patricio | 1 | 2.59K | 0 | Jun 2018 – Mar 2020 |
| Duprie-French GU G-4-274782 | Proline Energy Resources Inc only | Midway, S. (Morris) | San Patricio | 1 | 2.25K | 156K | Jun 2014 – Oct 2025 |
| Welder Ranch G-4-155705 | Proline Energy Resources Inc only | Oneil (3450) | San Patricio | 1 | 2.25K | 1.06M | May 1995 – Oct 2025 |
| Welch O-4-13455 | American Shoreline, Inc. only | White Point, E. (Greta 4900 W.) | San Patricio | 1 | 1.98K | 20 | Jan 2008 – Mar 2009 |