| Burris O-2-8501 | Coastline Exploration, Inc. only | Gottschalt, W. | Goliad | 1 | 21.2K | 28K | Dec 1999 – Nov 2002 |
| Coline -A- O-3-8550 | C.F.O., Inc. only | Batson New | Hardin | 3 | 21.1K | 3.75K | by Jan 1993 – Aug 2026 |
| Shell E G-4-268961 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 21K | 293K | Oct 2012 – Aug 2026 |
| Johnson, W. D., Jr. -B- O-10-12566 | Incline Energy only | Grice (Delaware) | Loving | 2 | 21K | 76.7K | by Jan 1993 – Mar 2012 |
| Caroline Pielop G-1-271422 | BPX Operating Company only | Hawkville (Eagleford Shale) | La Salle | 1 | 21K | 1.38M | Jun 2013 – Aug 2026 |
| Berryman et al Gas Unit G-4-182213 | Proline Energy Resources Inc only | Agua Dulce (Vicksburg Consl.) | Nueces | 1 | 20.9K | 1.95M | Feb 2001 – Jun 2026 |
| Olmitos Ranch G-4-109373 | Proline Energy Resources Inc only | Vaquillas Ranch (Lobo Cons.) | Webb | 1 | 20.9K | 800K | by Jan 1993 – Dec 2025 |
| Shell G-4-243618 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 20.7K | 602K | Aug 2008 – Dec 2025 |
| Jones, Gary O-8-26141 | DMV Pipeline LLC only | Blind Hog (Adams Branch) | Brown | 6 | 20.5K | 6.42K | by Jan 1993 – Aug 2019 |
| Hinojosa " a " G-4-194259 | Proline Energy Resources Inc only | McAllen Ranch (Vicksburg K Cons) | Hidalgo | 1 | 20.4K | 1.47M | Feb 2003 – Jul 2026 |
| Cochran G-3-253384 | Proline Energy Resources Inc only | Panza (13,900 Sand) | Colorado | 1 | 20.3K | 1.2M | Dec 2008 – Mar 2016 |
| Beaurline, A. W. G-4-159331 | Gn&j LLC only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 20.1K | 4.21M | Jul 1996 – Dec 2022 |
| Tait, M., -A- G-3-4917 | Proline Energy Resources Inc only | Altair (Wilcox 10,100) | Colorado | 1 | 20K | 1.69M | by Jan 1993 – Aug 2024 |
| Robinson Ranch 78 G-8-246682 | Tarpon Oil & Gas Co. only | Brad, SW. (Big Saline Congl.) | Palo Pinto | 1 | 20K | 377K | Jan 2009 – Jan 2022 |
| Franke O-2-8366 | Coastline Exploration, Inc. only | Brandt, S. (Cook Mt. 5200) | Goliad | 1 | 20K | 88.5K | Mar 1998 – Mar 2002 |
| Osborne O-14-2844 | Red Line Company, Ltd. only | Panhandle Gray County Field | Gray | 2 | 19.9K | 56.7K | by Jan 1993 – Aug 2026 |
| Vela, A. G-4-122547 | Proline Energy Resources Inc only | Roleta (Wilcox Consolidated) | Zapata | 1 | 19.4K | 3.08M | by Jan 1993 – May 2021 |
| Sailor, Martha O-14-322 | Red Line Company, Ltd. only | Panhandle Gray County Field | Gray | 6 | 19.4K | 168K | by Jan 1993 – Aug 2026 |
| Hollan O-1-14964 | Outline Oil Company LLC only | Buck Wheat (Wales) | McMullen | 1 | 19.2K | 0 | Jul 2008 – Aug 2016 |
| Lineberry(san Andres CF Unit) O-10-43223 | Texland Petroleum, L.P. only | Fullerton | Andrews | 1 | 19.2K | 804 | Sep 2012 – Aug 2026 |
| Tait, Alice G-3-132040 | Proline Energy Resources Inc only | Tait (Wilcox 9,900) | Colorado | 1 | 19.1K | 1.37M | by Jan 1993 – Jun 2019 |
| Treadwell, John H. 70 O-9-8624 | Ridgeline Energy Inc. only | Fort McKavitt, N. (Canyon Lo.) | Schleicher | 2 | 19.1K | 114K | by Jan 1993 – Apr 2006 |
| Slator -C- O-10-15412 | Incline Energy only | Slator (San Andres) | Ector | 2 | 19.1K | 6.94K | by Jan 1993 – Feb 2018 |
| Beaurline. A. W. G-4-196242 | Mueller Exploration, Inc. only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 19K | 2.81M | Jun 2003 – Jun 2026 |
| Meider Gas Unit G-2-115245 | Proline Energy Resources Inc only | Coquat (Meider a, Deep) | Live Oak | 1 | 18.8K | 1.02M | Nov 2004 – Apr 2014 |
| Wolfe-Cullum O-13-3985 | Borderline Operating Corp. only | Wolfe | Jack | 4 | 18.7K | 5.52K | by Jan 1993 – Oct 2009 |
| La Sal Vieja Gas Unit G-4-173711 | Proline Energy Resources Inc only | La Sal Vieja (Frio Cons) | Willacy | 1 | 18.7K | 2.24M | Jul 1999 – Nov 2014 |
| Beaurline, A. W. G-4-160984 | Merit Energy Company only | McAllen Ranch (Vicksburg y, E.) | Hidalgo | 1 | 18.7K | 1.91M | Nov 1996 – Feb 2003 |
| Scott Foundation 59 #5 Gas Unit G-1-144058 | Proline Energy Resources Inc only | Bonne Terre (10400) | McMullen | 1 | 18.7K | 1.24M | by Jan 1993 – Aug 2025 |
| Clay Farms G-3-202564 | Proline Energy Resources Inc only | Giddings (Austin Chalk, Gas) | Burleson | 1 | 18.6K | 1.34M | Mar 2004 – Aug 2026 |
| Scott, L. B. -E- O-13-7496 | Borderline Operating Corp. only | Young County Regular | Young | 1 | 18.5K | 3.23K | by Jan 1993 – Dec 2008 |
| Knight G-3-278095 | Proline Energy Resources Inc only | Fort Trinidad, East (Buda) | Houston | 1 | 18.5K | 313K | Nov 2012 – Dec 2025 |
| Jacob G-2-187798 | Proline Energy Resources Inc only | Mission Valley, W.(wilcox 10600) | Goliad | 1 | 18.4K | 2.6M | Nov 2001 – May 2023 |
| Cahoon Unit G-3-205362 | Proline Energy Resources Inc only | Hull, South (Yegua 9550) | Liberty | 1 | 18.4K | 3.49M | Nov 2004 – May 2026 |
| Linebery, Evelyn, Etal -A- O-10-11835 | Texland Petroleum, L.P. only | Union | Andrews | 1 | 18.2K | 5.02K | by Jan 1993 – Jun 1996 |
| Rupp G-4-162534 | Maguire Oil Company only | Ann Mag, West (8000 Deline Sd.) | Brooks | 1 | 18.2K | 737K | Jan 1997 – Apr 2002 |
| Beaurline, A. W. G-4-190281 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 18.2K | 1.29M | Aug 2002 – Jan 2015 |
| Scott Foundation G-1-202556 | Proline Energy Resources Inc only | Campana, South (Wilcox 7700) | McMullen | 1 | 18.1K | 1.73M | Jun 2004 – Jun 2026 |
| Ideus O-2-8540 | Coastline Exploration, Inc. only | Gottschalt (Cook Mountain) | Goliad | 1 | 18.1K | 25K | Jan 2000 – Jun 2002 |
| Lone Star O-14-1054 | Red Line Company, Ltd. only | Panhandle Hutchinson County Fld. | Hutchinson | 3 | 18K | 14.3K | by Jan 1993 – Jan 2022 |
| Scott Foundation G-1-193524 | Proline Energy Resources Inc only | Campana, South (Wilcox 7,900) | McMullen | 1 | 18K | 1.5M | Jan 2003 – Oct 2008 |
| Linney, Margaret M O-2-5672 | Outline Oil Company LLC only | Papalote, E. (3250) | Bee | 1 | 18K | 21 | by Jan 1993 – Jul 2023 |
| Mesquite A O-9-17724 | Pioneer Natural Res. USA, Inc. only | Hondo Pipeline (Fusselman) | Reagan | 1 | 17.8K | 9.28K | Dec 2011 – Jul 2014 |
| Moore, J. W., -A- O-14-692 | Red Line Company, Ltd. only | Panhandle Hutchinson County Fld. | Hutchinson | 4 | 17.6K | 22.5K | by Jan 1993 – Aug 2026 |
| Clark, A.D. G-6-124441 | MHM Pipeline Co., Inc. only | Lindale (Rodessa) | Smith | 1 | 17.5K | 620K | by Jan 1993 – Jan 2021 |
| Byrum, B. F. A. -A- O-14-75 | Red Line Company, Ltd. only | Panhandle Carson County Field | Carson | 2 | 17.4K | 119K | by Jan 1993 – Oct 2019 |
| Lovett, Fannie -B- O-14-601 | Red Line Company, Ltd. only | Panhandle Gray County Field | Gray | 7 | 17.4K | 1.02K | by Jan 1993 – Aug 2026 |
| Pielop, Caroline G-1-255733 | BPX Operating Company only | Hawkville (Eagleford Shale) | La Salle | 1 | 17.1K | 6.62M | Nov 2009 – Aug 2026 |
| Bostick, Don Est. O-3-24356 | Layline Petroleum I, LLC only | Brookshire | Waller | 1 | 17.1K | 0 | May 2003 – Nov 2007 |
| Davis G-4-218885 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 17K | 1.61M | Feb 2006 – Jun 2026 |