| Langley AH1 G-13-294718 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 48.8K | 1.74M | Sep 2022 – Apr 2026 |
| Sumner Trust Unit O-3-24834 | Triangle Three Resources L.L.C. only | Brookshire | Waller | 2 | 47.8K | 62.6K | Mar 2006 – Jun 2020 |
| Bojangles 133 O-14-7980 | Holmes Exploration, LLC only | Ellis Ranch (Cleveland) | Ochiltree | 1 | 46.9K | 67.9K | Mar 2009 – Apr 2011 |
| Howard No. 1 GU G-3-152680 | Timberwolf Energy, Inc. only | Angleton, S. (F-4 FB-AZ) | Brazoria | 1 | 46.6K | 5.38M | Dec 1994 – Mar 2026 |
| Danglemeyer 'C' O-13-33905 | HWH Production, LLC only | Cooke County Regular | Cooke | 8 | 46K | 0 | Sep 2019 – Apr 2026 |
| Golden Triangle Unit O-3-21666 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk-3) | Brazos | 1 | 44.8K | 160K | Jan 1993 – Jul 2001 |
| Burnett-Triangle G-11-162180 | Wagner Oil Company only | Moon Camp (Palo Pinto Reef, LO) | Cottle | 1 | 42.3K | 4.27M | Jan 1997 – Apr 2026 |
| Williamson, et Al G-3-193463 | Timberwolf Energy, Inc. only | Angleton, South (12,100 Frio) | Brazoria | 1 | 38K | 1.16M | Nov 2002 – Mar 2026 |
| Langley 41 O-10-45122 | SMC Oil & Gas, Inc. only | Garden City, S. (Wolfcamp) | Howard | 1 | 37.3K | 87.1K | Mar 2014 – Mar 2026 |
| Bains Montgomery Unit #2 O-3-27183 | Triangle Three Resources L.L.C. only | Brookshire | Waller | 1 | 36.8K | 0 | Sep 2016 – Jul 2025 |
| Danglemeyer A O-13-33674 | HWH Production, LLC only | Cooke County Regular | Cooke | 6 | 32.6K | 0 | Oct 2017 – Apr 2026 |
| Howard No. 2 GU G-3-154623 | Timberwolf Energy, Inc. only | Angleton, S. (F-4 FB-AZ) | Brazoria | 1 | 30.8K | 4.11M | May 1995 – Mar 2026 |
| Langley 41B O-10-44728 | SMC Oil & Gas, Inc. only | Garden City, S. (Wolfcamp) | Howard | 1 | 30.5K | 98.3K | Sep 2013 – Mar 2026 |
| Wyatt, Eddie O-1-893 | Tanglehead Operating, LLC only | La Vernia | Guadalupe | 22 | 29.9K | 0 | May 1995 – Aug 2022 |
| Sumner Trust O-3-24809 | Triangle Three Resources L.L.C. only | Brookshire | Waller | 1 | 29.3K | 33.7K | Jan 2006 – Jun 2020 |
| Smith G-3-201403 | Noble Energy Inc only | Angleton, South (12,100 Frio) | Brazoria | 1 | 29.2K | 1.52M | Mar 2004 – Aug 2010 |
| Intercoastal Farms Unit O-1-13185 | Langley, Carl A. only | Pearsall (Austin Chalk) | Dimmit | 1 | 28K | 68.2K | Jan 1993 – Oct 1994 |
| Holy Comforter Unit G-3-131533 | Wing Corporation only | Angleton, S. (F-4 FB-AZ) | Brazoria | 1 | 26.9K | 2.34M | Jan 1993 – Apr 1999 |
| Williamson-Retrieve Unit No. 1 G-3-130811 | Wing Corporation only | Angleton, S. (F-4 FB-AZ) | Brazoria | 1 | 23.8K | 2.02M | Jan 1993 – Feb 1999 |
| Langley "a" Unit G-13-209004 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 23.4K | 851K | Apr 2005 – Apr 2026 |
| Harrison Partners O-3-25732 | Slawson Exploration Company, Inc only | Angleton, South (12,600) | Brazoria | 1 | 23.2K | 196K | May 2011 – Jun 2014 |
| Williamson G-3-94897 | Wing Corporation only | Angleton, S. (Frio 13 FB-B) | Brazoria | 1 | 21.6K | 934K | Jan 1993 – Nov 1999 |
| Langley AH2 G-13-294631 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 21.2K | 1.21M | Sep 2022 – Apr 2026 |
| Langley "a" Unit G-13-208511 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 20.9K | 719K | Mar 2005 – Apr 2026 |
| Sanders Triangle O-10-45766 | Oxyrock Operating, LLC only | Spraberry (Trend Area) | Glasscock | 1 | 20.4K | 81.3K | Jul 2014 – Mar 2026 |
| Langley "a" Unit G-13-207473 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 20.3K | 849K | Mar 2005 – Apr 2026 |
| Langley 43 O-10-46293 | SM Energy Company only | Garden City, S. (Wolfcamp) | Howard | 2 | 19.2K | 49K | Nov 2014 – Mar 2021 |
| Williamson G-3-158703 | Timberwolf Energy, Inc. only | Angleton, S. (Frio 13 FB-C) | Brazoria | 1 | 18.9K | 913K | Apr 1996 – Sep 2004 |
| Carr G-3-192321 | Hemco Development, LLC only | Angleton (Frio, Consolidated) | Brazoria | 1 | 18.7K | 1.42M | Oct 2002 – Sep 2014 |
| Langley AH3 G-13-294602 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 18.6K | 1.26M | Sep 2022 – Apr 2026 |
| Angle G-3-184757 | XOG Resources, LLC only | Chocolate Bayou ( Frio P) | Brazoria | 1 | 18.3K | 717K | Aug 2001 – Dec 2012 |
| Waiters Pink Sr.,et UX O-1-7742 | Tanglehead Operating, LLC only | La Vernia | Guadalupe | 6 | 18.2K | 95 | Jan 1993 – Aug 2022 |
| Triangle G-3-193497 | Noble Energy Inc only | Chocolate Bayou, NE. (9910) | Brazoria | 1 | 18.2K | 1.7M | Feb 2003 – Oct 2006 |
| Bains Montgomery Unit #7 O-3-27195 | Triangle Three Resources L.L.C. only | Brookshire | Waller | 1 | 17.9K | 0 | Jan 2017 – Jul 2025 |
| Bains Montgomery Unit #5 O-3-27186 | Triangle Three Resources L.L.C. only | Brookshire | Waller | 1 | 17.3K | 0 | Nov 2016 – Jul 2025 |
| Remington Triangle Unit O-10-45767 | Oxyrock Operating, LLC only | Spraberry (Trend Area) | Glasscock | 1 | 17.3K | 83.6K | Aug 2014 – Apr 2026 |
| Langley -A- O-10-20946 | Melrose Operating Company only | Turner-Gregory (Clear Fork) | Mitchell | 3 | 17.2K | 21 | Jan 1993 – Sep 2002 |
| Langley Unit G-13-210625 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 16.9K | 719K | Jul 2005 – Apr 2026 |
| Langley O-10-38979 | SMC Oil & Gas, Inc. only | Spraberry (Trend Area) | Howard | 2 | 16.8K | 35.4K | Oct 2008 – Mar 2026 |
| Burwick, Willie -A- O-8-11647 | Triangle P Development Corp. only | Watts (Gardner Sand) | Nolan | 1 | 16.7K | 128K | Jan 1993 – Aug 2019 |
| Higgins, Patillo Jr. O-1-6224 | Tanglehead Operating, LLC only | Kaye (Navarro) | Wilson | 5 | 16.6K | 21 | Jan 1993 – Aug 2022 |
| Schievelbien, Albert O-1-6012 | Tanglehead Operating, LLC only | La Vernia | Guadalupe | 20 | 16.2K | 95 | Jan 1993 – Aug 2022 |
| Bains Montgomery O-3-27182 | Triangle Three Resources L.L.C. only | Brookshire | Waller | 1 | 15.7K | 0 | Sep 2016 – Jul 2025 |
| Williamson G-3-224124 | Timberwolf Energy, Inc. only | Angleton, S. (F-4 FB-AZ) | Brazoria | 1 | 15.6K | 150K | Jun 2005 – Mar 2026 |
| Bouldin, Clifford O-8-837 | Tanglewood Oil & Gas Co. only | Coleman County Regular | Coleman | 14 | 15.2K | 15 | Jan 1993 – Apr 2026 |
| Chadbourne Ranch -290- O-9-12197 | Triangle P Development Corp. only | Wingate, West (Gray) | Runnels | 4 | 14.9K | 61.4K | Jan 1993 – Mar 1998 |
| Bains Montgomery Unit #10 O-3-27191 | Triangle Three Resources L.L.C. only | Brookshire | Waller | 1 | 14.9K | 0 | Jan 2017 – Jul 2025 |
| Deagen, Bill & Sons Ltd -B- O-1-7302 | Tanglehead Operating, LLC only | Kaye (Navarro) | Wilson | 3 | 14.7K | 21 | Jan 1993 – Aug 2022 |
| Langley "a" Unit G-13-200625 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 14.3K | 549K | Jan 2004 – Apr 2026 |
| Langley "a" Unit G-13-218667 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 14K | 703K | Apr 2006 – Apr 2026 |