| Glasscock, C. G. O-3-23107 | Proline Energy Resources Inc only | Glasscock (Wilcox 9,400) | Colorado | 2 | 62.9K | 151K | Aug 1996 – Nov 2015 |
| Koster-Vastar O-3-24435 | Hilcorp Energy Company only | Red Line (Hartburg, Upper) | Orange | 1 | 62K | 30.2K | Sep 2003 – Dec 2019 |
| Cooley, M.E. G-2-180502 | Proline Energy Resources Inc only | Mission Valley, W.(wilcox 10600) | Victoria | 1 | 61.6K | 8.66M | Jan 2000 – May 2026 |
| Arline O-14-8294 | Unbridled Resources, LLC only | Feldman (Tonkawa) | Lipscomb | 1 | 60.2K | 246K | Oct 2010 – Oct 2025 |
| Berryman, et al Unit G-4-175748 | Proline Energy Resources Inc only | Agua Dulce (Vicksburg Consl.) | Nueces | 1 | 60K | 1.91M | Jan 2000 – Dec 2000 |
| Young O-6-5592 | Proline Energy Resources Inc only | Carthage (Hill, Southwest) | Panola | 1 | 59.4K | 259K | by Jan 1993 – Aug 2026 |
| Foster Farms Deep G-3-226909 | Proline Energy Resources Inc only | Fulshear, S. (Cons.) | Fort Bend | 1 | 59.3K | 2.37M | Feb 2007 – Aug 2026 |
| County Line O-3-27028 | Wildfire Energy Operating LLC only | Madisonville, W. (Woodbine -A-) | Madison | 1 | 59.1K | 637K | Mar 2015 – Jul 2026 |
| Waer, Calvin et Al O-2-7901 | Coastline Exploration, Inc. only | Gottschalt (Mackhank 7700) | Goliad | 2 | 59.1K | 169K | Aug 1993 – Jul 2003 |
| Worrell-Northrup O-3-21103 | Proline Energy Resources Inc only | Chenango, North (Frio 10500) | Brazoria | 1 | 58.9K | 12.2K | by Jan 1993 – Dec 2019 |
| Caroline Pielop Unit 7 G-1-260232 | BPX Operating Company only | Hawkville (Eagleford Shale) | La Salle | 1 | 58.4K | 2.54M | Jul 2011 – Feb 2026 |
| Lovett O-14-327 | Red Line Company, Ltd. only | Panhandle Gray County Field | Gray | 8 | 57.5K | 42.7K | by Jan 1993 – Aug 2026 |
| Clarence O'Berg Gas Unit G-4-143190 | Proline Energy Resources Inc only | La Sal Vieja (Frio Cons) | Willacy | 1 | 56.5K | 1.62M | by Jan 1993 – Mar 2025 |
| Briscoe, Trap 56 Acres O-1-1466 | Flint Pipeline Company only | Salt Flat | Caldwell | 12 | 56.5K | 14.1K | by Jan 1993 – Aug 2026 |
| Linebery -E- O-10-30825 | Hard Rock O&G only | Scarborough | Winkler | 4 | 56.4K | 44.3K | by Jan 1993 – Nov 2023 |
| Escondido Creek-Evangeline (SA) G-2-271700 | Falcon Production LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 56K | 1.33M | Jul 2013 – Sep 2019 |
| Canon Ranch O-10-37666 | Incline Energy only | Sheffield (Ellenburger) | Pecos | 1 | 55.8K | 118K | Oct 2005 – Jun 2025 |
| Talley, E. H. O-1-4103 | Proline Energy Resources Inc only | Dale-McBride | Caldwell | 10 | 55.6K | 61 | by Jan 1993 – Dec 2025 |
| Ware, R. C. O-14-78 | Red Line Company, Ltd. only | Panhandle Carson County Field | Carson | 20 | 55.2K | 197K | by Jan 1993 – Aug 2026 |
| Lineberry -D- O-10-14034 | Escondido Bay Corporation only | Union | Andrews | 3 | 55.2K | 270 | by Jan 1993 – 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 |
| Worthington O-13-23906 | MHM Pipeline Co., Inc. only | Crooked Creek (Weir) | Jack | 4 | 54.6K | 21 | by Jan 1993 – Jun 2026 |
| Smith, A. B. O-6-14870 | Flint Pipeline Company only | Ann McKnight (Paluxy D) | Smith | 1 | 53.8K | 0 | Apr 2009 – Aug 2026 |
| Jones Estate G-4-226744 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 53.3K | 4.25M | Apr 2007 – Jul 2026 |
| Worley O-2-8773 | Proline Energy Resources Inc only | Brandt (Cook Mountain) | Goliad | 1 | 52.8K | 12.7K | Jan 2003 – Jul 2017 |
| County Line South O-8-31031 | R2Q Operating LLC only | Hollins (Penn. Sand) | Nolan | 5 | 52.4K | 230K | Jun 2012 – Aug 2026 |
| Kelly O-3-20255 | Proline Energy Resources Inc only | Chenango (9100) | Brazoria | 1 | 52.2K | 36.4K | by Jan 1993 – Dec 2017 |
| Beaurline, A. W. G-4-138959 | Merit Energy Company only | McAllen Ranch (Guerra) | Hidalgo | 1 | 52.1K | 4.06M | by Jan 1993 – Apr 2002 |
| Beaurline G-4-173667 | Northern Pacific Oil Incorporatd only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 51.3K | 978K | Jan 1999 – May 2020 |
| Beaurline, A. W. G-4-120249 | OXY USA Inc. only | McAllen Ranch (Vicksburg S, E.) | Hidalgo | 1 | 51K | 858K | by Jan 1993 – Nov 2001 |
| Kocurek Heirs G-4-183105 | Proline Energy Resources Inc only | Agua Dulce (Vicksburg Consl.) | Nueces | 1 | 50.9K | 1.95M | May 2001 – Dec 2025 |
| Knipe G-4-68164 | Proline Energy Resources Inc only | Midway, East (10700) | San Patricio | 1 | 50.2K | 1.52M | by Jan 1993 – Aug 2024 |
| Sanders "A" O-4-4049 | Proline Energy Resources Inc only | Baldwin (3800) | Nueces | 1 | 50K | 434 | by Jan 1993 – Aug 2026 |
| BRP - Polk "A" O-11-68586 | Sojourner Drilling Corporation only | Skyline (Strawn) | King | 1 | 49.5K | 0 | Jun 2003 – Jul 2026 |
| Webb -a- Battery #1 O-14-558 | Red Line Company, Ltd. only | Panhandle Gray County Field | Gray | 9 | 49.2K | 83.2K | by Jan 1993 – Aug 2026 |
| Timms O-14-1076 | Red Line Company, Ltd. only | Panhandle Hutchinson County Fld. | Hutchinson | 8 | 48.9K | 131K | by Jan 1993 – Aug 2026 |
| Cory O-3-26768 | Proline Energy Resources Inc only | Ft. Trinidad, E. (Glen Rose, UP) | Houston | 1 | 48.5K | 19.4K | Nov 2014 – Aug 2023 |
| Ware O-14-111 | Red Line Company, Ltd. only | Panhandle Carson County Field | Carson | 18 | 48.1K | 80.8K | by Jan 1993 – Aug 2026 |
| Hamon Heirs O-2-532 | Proline Energy Resources Inc only | Ganado, West | Jackson | 3 | 48K | 103 | by Jan 1993 – Mar 2025 |
| Kampfhenkel Gas Unit G-4-186186 | Proline Energy Resources Inc only | Agua Dulce (Vicksburg Consl.) | Nueces | 1 | 47.6K | 1.78M | Apr 2001 – Dec 2025 |
| Vastar-Temple Inland G-3-179985 | Proline Energy Resources Inc only | Bessmay (Wilcox Cons) | Jasper | 1 | 47.4K | 269K | May 2000 – Aug 2026 |
| Caroline 27 O-10-44098 | Noble Energy Inc only | Wolfbone (Trend Area) | Reeves | 1 | 47.2K | 97.9K | Dec 2012 – Aug 2024 |
| Ballard, Lurline O-1-12063 | QQD Energy, LLC only | Dale-McBride | Caldwell | 8 | 46.9K | 292 | by Jan 1993 – Aug 2026 |
| Ware O-14-1100 | Red Line Company, Ltd. only | Panhandle Hutchinson County Fld. | Hutchinson | 13 | 46.9K | 111K | by Jan 1993 – Aug 2026 |
| Cline -A- O-10-26780 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 46.4K | 13.8K | by Jan 1993 – Aug 2026 |
| Goehring-Krueger O-2-8365 | Coastline Exploration, Inc. only | Bomba (Yegua 2ND) | Goliad | 1 | 46.4K | 63.9K | Mar 1998 – Sep 2004 |
| Pipeline "57" O-9-12985 | Lavanco Energy, Inc. only | Hondo Pipeline (Fusselman) | Irion | 1 | 46K | 50.7K | by Jan 1993 – Feb 2001 |
| Webb -a- Battery #5 O-14-1718 | Red Line Company, Ltd. only | Panhandle Gray County Field | Gray | 6 | 45.8K | 46.9K | by Jan 1993 – Aug 2026 |
| University Caroline O-9-15303 | R2Q Operating LLC only | Spraberry (Trend Area) | Reagan | 1 | 45.7K | 101K | Nov 2002 – Aug 2026 |
| Tri-Cities Gas Storage Unit G-5-22813 | Atmos Pipeline - Texas only | Tri-Cities (Bacon Lime) | Henderson | 1 | 45.2K | 17.5K | by Jan 1993 – Jan 2026 |