| Berryman, et al Unit G-4-175748 | Proline Energy Resources Inc | Agua Dulce (Vicksburg Consl.) | Nueces | 1 | 60K | 1.91M | Jan 2000 – Dec 2000 |
| Young O-6-5592 | Proline Energy Resources Inc | Carthage (Hill, Southwest) | Panola | 1 | 59.4K | 259K | by Jan 1993 – Aug 2026 |
| Foster Farms Deep G-3-226909 | Proline Energy Resources Inc | Fulshear, S. (Cons.) | Fort Bend | 1 | 59.3K | 2.37M | Feb 2007 – Aug 2026 |
| Worrell-Northrup O-3-21103 | Proline Energy Resources Inc | Chenango, North (Frio 10500) | Brazoria | 1 | 58.9K | 12.2K | by Jan 1993 – Dec 2019 |
| Clarence O'Berg Gas Unit G-4-143190 | Proline Energy Resources Inc | La Sal Vieja (Frio Cons) | Willacy | 1 | 56.5K | 1.62M | by Jan 1993 – Mar 2025 |
| Talley, E. H. O-1-4103 | Proline Energy Resources Inc | Dale-McBride | Caldwell | 10 | 55.6K | 61 | by Jan 1993 – Dec 2025 |
| Hunt, Jeffery Davis O-4-13504 | Proline Energy Resources Inc | Geronimo, N. (N-2 10300) | San Patricio | 1 | 54.7K | 276K | Sep 2008 – Jun 2024 |
| Jones Estate G-4-226744 | Proline Energy Resources Inc | Midway, South (Consolidated) | San Patricio | 1 | 53.3K | 4.25M | Apr 2007 – Jul 2026 |
| Worley O-2-8773 | Proline Energy Resources Inc | Brandt (Cook Mountain) | Goliad | 1 | 52.8K | 12.7K | Jan 2003 – Jul 2017 |
| Kelly O-3-20255 | Proline Energy Resources Inc | Chenango (9100) | Brazoria | 1 | 52.2K | 36.4K | by Jan 1993 – Dec 2017 |
| Kocurek Heirs G-4-183105 | Proline Energy Resources Inc | Agua Dulce (Vicksburg Consl.) | Nueces | 1 | 50.9K | 1.95M | May 2001 – Dec 2025 |
| Knipe G-4-68164 | Proline Energy Resources Inc | Midway, East (10700) | San Patricio | 1 | 50.2K | 1.52M | by Jan 1993 – Aug 2024 |
| Sanders "A" O-4-4049 | Proline Energy Resources Inc | Baldwin (3800) | Nueces | 1 | 50K | 434 | by Jan 1993 – Aug 2026 |
| Cory O-3-26768 | Proline Energy Resources Inc | Ft. Trinidad, E. (Glen Rose, UP) | Houston | 1 | 48.5K | 19.4K | Nov 2014 – Aug 2023 |
| Hamon Heirs O-2-532 | Proline Energy Resources Inc | Ganado, West | Jackson | 3 | 48K | 103 | by Jan 1993 – Mar 2025 |
| Kampfhenkel Gas Unit G-4-186186 | Proline Energy Resources Inc | Agua Dulce (Vicksburg Consl.) | Nueces | 1 | 47.6K | 1.78M | Apr 2001 – Dec 2025 |
| Vastar-Temple Inland G-3-179985 | Proline Energy Resources Inc | Bessmay (Wilcox Cons) | Jasper | 1 | 47.4K | 269K | May 2000 – Aug 2026 |
| Swanson-Meek Gas Unit G-3-161300 | Proline Energy Resources Inc | Phase Four (10540 Yegua) | Wharton | 1 | 45.1K | 2.9M | Jul 1996 – Jul 2025 |
| Talley, Lee A G-3-123583 | Proline Energy Resources Inc | Orchard, North (Wilcox) | Fort Bend | 1 | 44.1K | 2.22M | by Jan 1993 – Apr 2019 |
| Glasscock Ranch G-3-47834 | Proline Energy Resources Inc | Glasscock (Wilcox 10,500) | Colorado | 1 | 43.1K | 1.92M | by Jan 1993 – Oct 2019 |
| Bell Farms G-4-216716 | Proline Energy Resources Inc | Midway, South (Consolidated) | San Patricio | 1 | 43K | 2.32M | Jan 2006 – Aug 2026 |
| Worrell, R. J., Comm. O-3-8341 | Proline Energy Resources Inc | Chenango (8500 -B- Sd.) | Brazoria | 1 | 41.9K | 10.8K | by Jan 1993 – Dec 2018 |
| Duncan, F. B. G-3-5248 | Proline Energy Resources Inc | Bernard, W. (Clodine) | Wharton | 1 | 40.8K | 4.2M | by Jan 1993 – Mar 2021 |
| La Blanca Gas Unit G-4-167196 | Proline Energy Resources Inc | La Blanca (Frio 11300) | Hidalgo | 1 | 39.5K | 2.43M | Feb 1998 – Apr 2002 |
| Lackey O-1-12027 | Proline Energy Resources Inc | Dale-McBride | Caldwell | 4 | 38.3K | 7.1K | by Jan 1993 – Dec 2025 |
| Gamble O-3-26630 | Proline Energy Resources Inc | Fort Trinidad, East (Buda) | Houston | 1 | 38.1K | 48.4K | May 2013 – Dec 2024 |
| Apex GU G-4-224307 | Proline Energy Resources Inc | Midway, South (Consolidated) | San Patricio | 1 | 37.8K | 1.49M | Jan 2007 – Jun 2015 |
| Cooley, M. E. G-2-194567 | Proline Energy Resources Inc | Mission Valley, West (Massive-1) | Victoria | 1 | 37.5K | 1.89M | Sep 2000 – Apr 2026 |
| Countiss Sam G-4-194242 | Proline Energy Resources Inc | Baldwin (9290) | Nueces | 1 | 37.3K | 1.45M | Oct 2002 – May 2013 |
| Hopkins O-6-5598 | Proline Energy Resources Inc | Carthage (Hill, Southwest) | Panola | 2 | 37K | 33.1K | by Jan 1993 – Apr 2017 |
| BP-Stockstill G-3-254768 | Proline Energy Resources Inc | Bessmay (Wilcox Cons) | Jasper | 1 | 36.6K | 179K | Aug 2009 – Aug 2026 |
| Glasscock, C. G. G-3-150510 | Proline Energy Resources Inc | Glasscock (Wilcox 10630) | Colorado | 1 | 35.8K | 1.38M | Jul 1994 – Jan 2005 |
| Gold-Zapp G-3-180578 | Proline Energy Resources Inc | Phase Four (10500 Yegua) | Wharton | 1 | 35.6K | 1.4M | Dec 2000 – Mar 2026 |
| Hull G-3-126337 | Proline Energy Resources Inc | Hull Airport (Yegua 8660) | Fort Bend | 1 | 35.2K | 3.77M | by Jan 1993 – Nov 2025 |
| Jones Estate G-4-216031 | Proline Energy Resources Inc | Midway, South (Consolidated) | San Patricio | 1 | 34.9K | 2.62M | Feb 2006 – Apr 2026 |
| Baldwin, J. C. O-4-9441 | Proline Energy Resources Inc | Baldwin S. (Sanders) | Nueces | 3 | 34.8K | 29 | by Jan 1993 – Jul 2019 |
| B Gallagher 1GU G-4-201653 | Proline Energy Resources Inc | Baldwin (7400) | Nueces | 1 | 33.9K | 103K | Apr 2004 – Aug 2026 |
| Cooley M. E. G-2-174766 | Proline Energy Resources Inc | Mission Valley, W.(wilcox 10600) | Victoria | 1 | 33.9K | 3.2M | Jul 1999 – Jul 2026 |
| Hill-Barnhart Unit O-4-9825 | Proline Energy Resources Inc | Baldwin W. (3800) | Nueces | 1 | 33.5K | 2.89K | by Jan 1993 – Oct 2019 |
| La Sal Vieja Development G-4-243087 | Proline Energy Resources Inc | La Sal Vieja (Frio Cons) | Willacy | 1 | 33.3K | 2.43M | Nov 2008 – Apr 2026 |
| Smith "L" G-4-108840 | Proline Energy Resources Inc | Midway, South (Consolidated) | San Patricio | 1 | 30.7K | 1.14M | by Jan 1993 – Aug 2024 |
| South Unit G-3-84970 | Proline Energy Resources Inc | Bonus, South (Wilcox, Lower) | Wharton | 1 | 29.7K | 821K | by Jan 1993 – Aug 2026 |
| Swift O-3-26646 | Proline Energy Resources Inc | Fort Trinidad, W. (Glen Rose B) | Leon | 1 | 29.6K | 6.95K | Sep 2014 – Jun 2024 |
| Jacob G-2-178817 | Proline Energy Resources Inc | Mission Valley, W (Wilcox 10200) | Goliad | 1 | 29.4K | 4.89M | Jun 2000 – May 2026 |
| Richter O-2-8882 | Proline Energy Resources Inc | George West, E. (Queen City -B-) | Live Oak | 1 | 28.9K | 188K | Jun 2004 – Apr 2025 |
| Mosley Ranch O-3-26767 | Proline Energy Resources Inc | Fort Trinidad (Glen Rose -D-) | Houston | 1 | 27.7K | 46.7K | Mar 2015 – Jul 2026 |
| Harrison, G. G-3-197609 | Proline Energy Resources Inc | Pheasant, SW. (Frio K) | Matagorda | 1 | 27.2K | 781K | Mar 2003 – Apr 2014 |
| Countiss, Sam G-4-187848 | Proline Energy Resources Inc | Baldwin (9300) | Nueces | 1 | 27K | 820K | Jan 2002 – Dec 2025 |
| Berryman et al, Gas Unit G-4-182611 | Proline Energy Resources Inc | Agua Dulce (Vicksburg Consl.) | Nueces | 1 | 26.7K | 744K | Feb 2001 – Jul 2026 |
| Geis Harvey O-4-13142 | Proline Energy Resources Inc | La Sal Vieja | Willacy | 1 | 26.6K | 193K | Feb 2003 – Jul 2017 |