| Baldwin, J. C. O-4-9441 | Proline Energy Resources Inc only | Baldwin S. (Sanders) | Nueces | 3 | 34.8K | 29 | by Jan 1993 – Jul 2019 |
| Reed & Bitner -G- O-6-1953 | Layline Petroleum I, LLC only | Woodlawn | Marion | 1 | 34.4K | 137 | by Jan 1993 – Aug 2007 |
| Caroline -H- A O-10-25931 | Seaboard Operating Co. only | Quito, West (Cherry Canyon) | Ward | 1 | 34.1K | 137K | by Jan 1993 – Nov 2022 |
| B Gallagher 1GU G-4-201653 | Proline Energy Resources Inc only | Baldwin (7400) | Nueces | 1 | 33.9K | 103K | Apr 2004 – Aug 2026 |
| Cooley M. E. G-2-174766 | Proline Energy Resources Inc only | Mission Valley, W.(wilcox 10600) | Victoria | 1 | 33.9K | 3.2M | Jul 1999 – Jul 2026 |
| Huebner, Pauline O-3-24429 | Callon (Eagle Ford) LLC only | Faith-Mag (Disc 3) | Matagorda | 1 | 33.8K | 91.6K | Aug 2003 – Sep 2004 |
| Hill-Barnhart Unit O-4-9825 | Proline Energy Resources Inc only | 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 only | La Sal Vieja (Frio Cons) | Willacy | 1 | 33.3K | 2.43M | Nov 2008 – Apr 2026 |
| Beaurline, A. W. G-4-167989 | Merit Energy Company only | McAllen Ranch (Vicksburg S, E.) | Hidalgo | 1 | 32.9K | 734K | Mar 1998 – Aug 2026 |
| Beaurline G-4-225759 | Dewbre Petroleum Corporation only | McAllen Ranch (Vksbg W-Y) | Hidalgo | 1 | 32.2K | 1.31M | Sep 2006 – Aug 2026 |
| Caroline Pielop Unit 7 G-1-272348 | BPX Operating Company only | Hawkville (Eagleford Shale) | La Salle | 1 | 32K | 2.77M | Dec 2013 – Aug 2026 |
| Block, B. F. O-14-80 | Red Line Company, Ltd. only | Panhandle Carson County Field | Carson | 15 | 31.9K | 131K | by Jan 1993 – Aug 2026 |
| Jackson Trust O-13-27000 | Borderline Operating Corp. only | Bryson, East | Jack | 2 | 31.8K | 20 | by Jan 1993 – Nov 2005 |
| Sailor O-14-3355 | Red Line Company, Ltd. only | Panhandle Carson County Field | Carson | 7 | 31.7K | 160K | by Jan 1993 – Aug 2026 |
| Moren, Wade O-13-17585 | Borderline Operating Corp. only | Young County Regular | Young | 1 | 30.8K | 6.39K | by Jan 1993 – Aug 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 |
| Boyd, C. F. O-13-21844 | Borderline Operating Corp. only | Bowie, NE. (Conglomerate) | Montague | 1 | 30.4K | 54.2K | by Jan 1993 – Mar 2015 |
| Carter O-9-18499 | Geosurveys, Inc. only | Draw the Line (Canyon) | Concho | 2 | 30.3K | 0 | Mar 2014 – Jul 2026 |
| Kaffie Gas Unit G-2-127417 | McCombs Energy LLC only | Charline (Forney) | Live Oak | 1 | 30.3K | 991K | by Jan 1993 – Oct 1996 |
| Beaurline, A. W. G-4-168906 | OXY USA Inc. only | McAllen Ranch (Vicksburg y, E.) | Hidalgo | 1 | 29.9K | 1.17M | Feb 1998 – Jul 2000 |
| South Unit G-3-84970 | Proline Energy Resources Inc only | Bonus, South (Wilcox, Lower) | Wharton | 1 | 29.7K | 821K | by Jan 1993 – Aug 2026 |
| Swift O-3-26646 | Proline Energy Resources Inc only | Fort Trinidad, W. (Glen Rose B) | Leon | 1 | 29.6K | 6.95K | Sep 2014 – Jun 2024 |
| Burnett, Susan O-13-10466 | Borderline Operating Corp. only | Young County Regular | Young | 4 | 29.6K | 296 | by Jan 1993 – Jan 2024 |
| Jacob G-2-178817 | Proline Energy Resources Inc only | Mission Valley, W (Wilcox 10200) | Goliad | 1 | 29.4K | 4.89M | Jun 2000 – May 2026 |
| Cline O-10-33891 | Smith Pipe of Abilene only | Knott, SE. (Wolfcamp) | Howard | 1 | 29.3K | 46.5K | Jul 1993 – Dec 2002 |
| Beaurline, A.W. G-4-163873 | Shell Western E&P only | McAllen Ranch (Vicksburg y, E.) | Hidalgo | 1 | 29.3K | 1.61M | Jul 1997 – May 2000 |
| TXL-Smith O-10-19175 | Incline Energy only | TXL (San Andres) | Ector | 2 | 29.3K | 36.1K | by Jan 1993 – Feb 2018 |
| Troxel, Pauline O-3-12018 | Dominion Oklahoma Texas E&P, Inc only | Giddings (Austin Chalk-3) | Lee | 1 | 29.3K | 355K | by Jan 1993 – Jan 2007 |
| Welch G-4-191862 | American Shoreline, Inc. only | White Point E. DP (Commonwealth) | San Patricio | 1 | 29K | 545K | Aug 2002 – Jul 2004 |
| Murphy, Vivian O-13-30322 | Borderline Operating Corp. only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 29K | 158K | Jul 2004 – Jan 2014 |
| Richter O-2-8882 | Proline Energy Resources Inc only | George West, E. (Queen City -B-) | Live Oak | 1 | 28.9K | 188K | Jun 2004 – Apr 2025 |
| Zapp Estate et al -D- O-3-13607 | Houston Pipe Line Company only | Bammel (6200 Cockfield) | Harris | 4 | 28.8K | 8 | by Jan 1993 – Jan 1998 |
| County Line West 34-22 B O-10-65429 | Diamondback E&P LLC only | Spraberry (Trend Area) | Glasscock | 2 | 28.5K | 29.2K | Aug 2026 – Aug 2026 |
| Harrington O-8-22345 | Borderline Operating Corp. only | Manning-Harrington (Strawn) | Throckmorton | 3 | 28.4K | 35 | by Jan 1993 – Sep 2002 |
| Wilpitz, Ernest A. O-3-24118 | Layline Petroleum I, LLC only | Brookshire | Waller | 3 | 28.3K | 32.8K | Oct 2001 – Sep 2008 |
| Loving Estate O-13-14425 | Borderline Operating Corp. only | Jack County Regular | Jack | 2 | 27.8K | 23 | by Jan 1993 – Oct 2002 |
| Mosley Ranch O-3-26767 | Proline Energy Resources Inc only | Fort Trinidad (Glen Rose -D-) | Houston | 1 | 27.7K | 46.7K | Mar 2015 – Jul 2026 |
| Mellinger O-3-20439 | Sideline Oil & Gas, L.P. only | Danbury Dome, N. (Marg Frio) | Brazoria | 1 | 27.6K | 20 | by Jan 1993 – May 2016 |
| Harrison, G. G-3-197609 | Proline Energy Resources Inc only | Pheasant, SW. (Frio K) | Matagorda | 1 | 27.2K | 781K | Mar 2003 – Apr 2014 |
| BRP "D" O-11-67734 | OXY USA Inc. only | Skyline (Strawn) | King | 1 | 27.1K | 0 | Jun 1997 – Nov 2007 |
| McCullough O-13-29616 | Borderline Operating Corp. only | Antelope,s.e. (Marble Falls) | Jack | 1 | 27K | 140K | Jan 1999 – Aug 2009 |
| Moore, J. W. O-14-802 | Red Line Company, Ltd. only | Panhandle Hutchinson County Fld. | Hutchinson | 5 | 27K | 19.7K | by Jan 1993 – Aug 2026 |
| Countiss, Sam G-4-187848 | Proline Energy Resources Inc only | Baldwin (9300) | Nueces | 1 | 27K | 820K | Jan 2002 – Dec 2025 |
| City of Abilene -B- O-8-4536 | MHM Pipeline Co., Inc. only | Caldwell Ranch | Taylor | 4 | 26.8K | 21 | by Jan 1993 – Jun 2026 |
| Berryman et al, Gas Unit G-4-182611 | Proline Energy Resources Inc only | Agua Dulce (Vicksburg Consl.) | Nueces | 1 | 26.7K | 744K | Feb 2001 – Jul 2026 |
| Caroline Pielop Unit 2 G-1-254449 | BPX Operating Company only | Hawkville (Eagleford Shale) | La Salle | 1 | 26.7K | 2.78M | Jan 2010 – Aug 2026 |
| Geis Harvey O-4-13142 | Proline Energy Resources Inc only | La Sal Vieja | Willacy | 1 | 26.6K | 193K | Feb 2003 – Jul 2017 |
| Lone Star O-14-1120 | Red Line Company, Ltd. only | Panhandle Hutchinson County Fld. | Hutchinson | 3 | 26.3K | 29.8K | by Jan 1993 – Aug 2026 |
| Tait, R. E., Jr. G-3-137430 | Proline Energy Resources Inc only | Tait (Wilcox 9,900) | Colorado | 1 | 26.1K | 1.81M | by Jan 1993 – Jul 2021 |
| Connell, A. B. O-10-15073 | Incline Energy only | Metz (Wichita-Albany) | Ector | 1 | 26.1K | 21 | by Jan 1993 – Apr 2001 |