| M Winfree Heirs O-3-26171 | Sandpoint Texas LLC only | Barbers Hill | Chambers | 2 | 112K | 0 | Feb 2013 – Jul 2026 |
| LO Free 38 O-10-50050 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 2 | 111K | 206K | Feb 2018 – Aug 2026 |
| Freeman '1' O-10-44197 | Rock Fish Operating LLC only | Spraberry (Trend Area) | Dawson | 2 | 110K | 42.4K | Jul 2013 – Aug 2026 |
| Free Ride AW O-1-21893 | Trailblazer Energy Resources,llc only | Eagleville (Eagle Ford-1) | Atascosa | 1 | 109K | 43.9K | Oct 2025 – Aug 2026 |
| Freeman, G. M. O-8-3067 | Scout Energy Management LLC only | White Flat | Nolan | 4 | 101K | 49.5K | by Jan 1993 – Aug 2026 |
| Freeman, C. N. O-2-8330 | Edge Petroleum Oper. Co., Inc. only | Freeman (Hockley 4145) | Live Oak | 1 | 94.4K | 86.8K | May 1997 – Apr 2002 |
| Rogers, U. E. O-9-3548 | Free Rein Operating LLC only | Tuckmar, South (3700 Sand) | Menard | 1 | 88K | 22 | by Jan 1993 – Aug 2026 |
| Freewilly 41 O-10-43787 | Apache Corporation only | Spraberry (Trend Area) | Glasscock | 2 | 83.8K | 593K | Jan 2013 – Aug 2026 |
| Freeman-Freeman Unit O-1-12998 | P1 Energy, LLC only | Christian (6800) | Gonzales | 1 | 79.1K | 25.3K | by Jan 1993 – Aug 2026 |
| Welsh, Katherine O-10-29455 | Free Rein Operating LLC only | Moore | Howard | 14 | 76.4K | 3.24K | by Jan 1993 – Aug 2026 |
| Free, J. W. O-7-8128 | John P. Bogdanich Operating, LLC only | East Texas | Upshur | 8 | 72.4K | 20 | by Jan 1993 – Aug 2026 |
| Pan AM Fee O-10-20111 | Free Rein Operating LLC only | Bar-Mar (Tubb) | Crane | 1 | 67.6K | 1.4K | by Jan 1993 – Aug 2026 |
| Freeman "B" O-13-27854 | Grayson Petroleum Company only | Southmayd (Oil Creek) | Grayson | 1 | 67.1K | 21 | by Jan 1993 – Aug 2026 |
| Free, L. O. O-10-22715 | Finley Resources, Inc. only | Spraberry (Trend Area) | Martin | 3 | 65.6K | 167K | by Jan 1993 – Sep 2016 |
| Winfree, O. K. O-3-200 | Lone Star NGL Mont Belvieu LP only | Barbers Hill | Chambers | 2 | 64.1K | 14.8K | by Jan 1993 – May 2004 |
| Gilbert-Freeman G-3-236240 | Sandel Operating Company only | Cypress Eagle (Wilcox) | Wharton | 1 | 62.3K | 2.66M | Apr 2008 – May 2025 |
| Freeman, G. D. O-13-10277 | Gilbreath Tank Trucks, Inc. only | Sandusky (3750) | Grayson | 1 | 62.3K | 21 | by Jan 1993 – Aug 2026 |
| Freeman, C. T. "A" O-13-27281 | Grayson Petroleum Company only | Southmayd (Strawn 4700) | Grayson | 3 | 61.5K | 21 | by Jan 1993 – Aug 2026 |
| Killam Freer Ranch 196 O-4-12909 | Killam Oil Co., Ltd. only | Freer Ranch (6TH Queen City) | Duval | 3 | 60.9K | 39.4K | Oct 1999 – Apr 2010 |
| Free-B O-7-6672 | Basa Resources, Inc. only | East Texas | Upshur | 2 | 58.3K | 0 | May 2006 – Aug 2026 |
| Freeman-Creagor Unit O-3-22324 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk-3) | Brazos | 1 | 58.3K | 944K | Feb 1994 – Dec 2012 |
| Fred, I. O-10-18183 | Freedom Energy, Inc. only | Miller Block B-29 (Penn.) | Ward | 2 | 56.5K | 1.34M | by Jan 1993 – Aug 2026 |
| Freeman B Unit G-13-273348 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Cooke | 1 | 52.2K | 1.38M | Jun 2011 – Aug 2026 |
| Hatch O-10-25496 | Free Rein Operating LLC only | Moore | Howard | 6 | 52.2K | 21 | by Jan 1993 – Aug 2026 |
| Gulf Wm. Winfree Fee O-3-3260 | Orangefield Operating Corporatio only | Orange | Orange | 6 | 51.4K | 29 | by Jan 1993 – Aug 2023 |
| Freeman, Wynona H. O-8-7183 | Walton Producing Inc. only | Mullen Ranch (Tannehill) | Stonewall | 2 | 51.2K | 22 | by Jan 1993 – May 2018 |
| Gilbert-Freeman G-3-244594 | Sandel Operating Company only | Cypress Eagle (Wilcox) | Wharton | 1 | 50.7K | 810K | Sep 2008 – Jan 2023 |
| Masterson, Ben & Tom O-11-6840 | Freeman Expl. & Prod. Co., Inc. only | Tom B. (Bunger Sand) | King | 6 | 47K | 6.05K | by Jan 1993 – Aug 2011 |
| Freeman a Unit G-13-273704 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Cooke | 1 | 44.1K | 1.22M | Dec 2010 – Aug 2026 |
| Freeman, C. N. -B- O-2-7073 | Sundown Energy LP only | Paisano Creek, E. (3200) | Live Oak | 2 | 42.9K | 11.7K | by Jan 1993 – Jan 2024 |
| Freeman, Eloda et Al G-14-280622 | Latigo Petroleum, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 42.4K | 1.68M | Jan 2016 – Aug 2026 |
| Gilbert-Freeman Unit G-3-263493 | Sandel Operating Company only | Cypress Eagle (Wilcox) | Wharton | 1 | 39.2K | 2.17M | Oct 2011 – Jul 2026 |
| Freeman, C. N. O-2-8329 | Edge Petroleum Oper. Co., Inc. only | Freeman (Yegua 4980) | Live Oak | 1 | 38.3K | 276K | Jul 1997 – Jan 2003 |
| Quinn -H- O-10-30320 | Free Rein Operating LLC only | Moore | Howard | 3 | 37.2K | 545 | by Jan 1993 – Aug 2026 |
| Freeman a Unit G-13-277630 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Cooke | 1 | 37.2K | 372K | Dec 2010 – Oct 2021 |
| Freeman, Hix O-13-15488 | Seitz, J. R. & Adam, Ltd. only | Cooke County Regular | Cooke | 3 | 37.2K | 21 | by Jan 1993 – Oct 2022 |
| Freeman, Odell "A" O-8-18039 | Rust Oil Corp. only | Jay (Strawn) | Jones | 2 | 35.5K | 24.1K | by Jan 1993 – Mar 2010 |
| Wilkinson O-10-25266 | Free Rein Operating LLC only | Moore | Howard | 6 | 34.4K | 20 | by Jan 1993 – Aug 2026 |
| Homan, J.H. Mrs. O-10-29133 | Free Rein Operating LLC only | Moore | Howard | 12 | 33.6K | 22 | by Jan 1993 – Aug 2026 |
| Freeman 27 O-10-41095 | Birch Operations, Inc. only | Spraberry (Trend Area) | Howard | 1 | 33.5K | 90.5K | May 2011 – Oct 2016 |
| Saunders O-10-31132 | Free Rein Operating LLC only | Moore | Howard | 2 | 33.1K | 20 | by Jan 1993 – Aug 2026 |
| Freeman '22' O-10-44268 | Rock Fish Operating LLC only | Spraberry (Trend Area) | Dawson | 1 | 32.8K | 17.4K | Aug 2013 – Aug 2026 |
| Quinn "D" O-10-29384 | Free Rein Operating LLC only | Moore | Howard | 3 | 31.7K | 514 | by Jan 1993 – Aug 2026 |
| Booth-Freeman G-6-29903 | Sydri Operating, LLC only | Carthage (Pettit, Lower Gas) | Rusk | 1 | 30.9K | 672K | by Jan 1993 – Apr 2023 |
| Freeman Farms 262-22 O-11-69390 | Rock Fish Operating LLC only | Patricia (Spraberry) | Dawson | 1 | 30.2K | 10.1K | Apr 2009 – Aug 2026 |
| Freeman, L. V. 208 O-5-1167 | Union Oil Company of California only | Van | Van Zandt | 5 | 29.6K | 7.31K | by Jan 1993 – Oct 2013 |
| Higgin O-10-8781 | Free Rein Operating LLC only | Varel (San Andres) | Howard | 1 | 28.9K | 269 | by Jan 1993 – Aug 2026 |
| Bracewell, Frank O-1-4871 | Freedom Energy, Ltd. only | Pearsall (Austin Chalk) | Frio | 8 | 28.7K | 13.3K | by Jan 1993 – Apr 1998 |
| Mildred Thompson "A" G-5-257531 | Diversified Production LLC only | Freestone (CV-Bossier Cons.) | Limestone | 1 | 28.6K | 3.4M | Apr 2010 – Aug 2026 |
| Freeman, J. O-7-8191 | Elms Oil Company only | East Texas | Gregg | 2 | 27.6K | 20 | by Jan 1993 – Jul 2026 |