| Britt-Rathjen O-14-9212 | Unbridled Resources, LLC only | Mills Ranch (Granite Wash Cons.) | Wheeler | 3 | 779K | 3.65M | May 2014 – Apr 2026 |
| Brittany 43-07 O-10-54096 | Ike Operating, LLC only | Spraberry (Trend Area) | Dawson | 2 | 502K | 530K | Oct 2019 – Apr 2026 |
| Hurry-Britt Unit O-3-21542 | Proline Energy Resources Inc only | Caldwell (Austin Chalk) | Burleson | 3 | 418K | 1.06M | Jan 1993 – Jan 2026 |
| Brittain, Wm. O-7-6224 | Basa Resources, Inc. only | East Texas | Rusk | 4 | 339K | 53.5K | Jan 1993 – Apr 2026 |
| Britt O-14-8520 | Unbridled Resources, LLC only | Mills Ranch (Granite Wash Cons.) | Wheeler | 3 | 323K | 1.3M | Apr 2012 – Apr 2026 |
| Britt Ranch Unit G-14-267478 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 244K | 2.12M | Jan 2012 – Apr 2026 |
| Britt Ranch E 8SL G-14-259632 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 235K | 7.22M | Aug 2010 – Apr 2026 |
| Britt Ranch I 4SL G-14-267290 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 209K | 7.96M | Jun 2011 – Apr 2026 |
| Britt Caldwell O-14-8509 | Unbridled Resources, LLC only | Mills Ranch (Granite Wash Cons.) | Wheeler | 2 | 203K | 556K | Apr 2012 – Apr 2026 |
| Britt "65" O-11-62365 | Walkabout Operating, LLC only | Welch | Dawson | 5 | 202K | 34 | Jan 1993 – Apr 2026 |
| Elmore 21 G-14-265116 | Unbridled Resources, LLC only | Allison-Britt (12350) | Wheeler | 1 | 199K | 5.44M | Mar 2012 – Apr 2026 |
| Britten-Siegert Unit O-3-21606 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 2 | 199K | 422K | Jan 1993 – May 2024 |
| Britt "131" O-11-62537 | Walkabout Operating, LLC only | Welch | Dawson | 5 | 197K | 34 | Jan 1993 – Apr 2026 |
| Britt Ranch Unit G-14-267497 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 148K | 2.21M | Jan 2012 – Apr 2026 |
| Britt Ranch Unit G-14-259433 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 133K | 6.99M | Jul 2010 – Nov 2025 |
| Britt Ranch Unit G-14-269237 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 124K | 1.52M | Feb 2012 – Apr 2026 |
| Britten Unit O-3-22147 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 2 | 122K | 200K | Aug 1993 – Mar 2026 |
| Britt Ranch Unit G-14-269041 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 114K | 1.02M | Jan 2012 – Apr 2026 |
| Britt-Rathjen O-14-9629 | Unbridled Resources, LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 110K | 914K | Jun 2017 – May 2021 |
| Britt Ranch Unit G-14-266437 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 108K | 1.73M | Jul 2011 – Apr 2026 |
| McMahan 22 G-14-258544 | Unbridled Resources, LLC only | Allison-Britt (12350) | Wheeler | 1 | 107K | 2.65M | May 2010 – Apr 2026 |
| Grayson 22 G-14-257931 | Unbridled Resources, LLC only | Allison-Britt (12350) | Wheeler | 1 | 105K | 4.41M | Sep 2010 – Apr 2026 |
| Britt Ranch Unit G-14-265368 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 104K | 3.53M | Mar 2011 – Apr 2026 |
| D. Britt 4 G-14-267877 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 101K | 3.2M | Feb 2012 – Apr 2026 |
| Britta G-3-154478 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Fayette | 1 | 101K | 3.74M | Apr 1995 – Apr 2026 |
| Britt Ranch Unit G-14-262264 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 99.3K | 2.85M | Mar 2011 – Apr 2026 |
| Britt Ranch Unit G-14-267258 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 98.1K | 1.48M | Aug 2011 – Apr 2026 |
| Britt Ranch E8 G-14-266563 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 96.1K | 2.65M | Aug 2011 – Apr 2026 |
| Britt 38 G-14-265295 | Unbridled Resources, LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 95.7K | 4.06M | Sep 2011 – Apr 2026 |
| Hemphill O-11-17054 | Walsh & Watts, Inc. only | Britt (Spraberry) | Dawson | 2 | 95.4K | 18.4K | Jan 1993 – Apr 2026 |
| Britt Ranch Unit G-14-263495 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 94.3K | 4.55M | May 2011 – Apr 2026 |
| Brown-Britten Unit O-3-21205 | Wildfire Energy Operating LLC only | Kurten (Buda) | Brazos | 1 | 91.8K | 158K | Jan 1993 – Aug 2024 |
| Universitybrittany O-10-39063 | OXY USA Inc. only | Saint Wilma (Strawn) | Andrews | 4 | 90.4K | 94.2K | Jan 2008 – Sep 2014 |
| Britt 34 O-14-9025 | Unbridled Resources, LLC only | Mills Ranch (Granite Wash Cons.) | Wheeler | 3 | 89.6K | 575K | Nov 2012 – Apr 2026 |
| Britt Ranch Unit G-14-263141 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 87.6K | 3.46M | May 2011 – Apr 2026 |
| Britt Ranch Unit G-14-263216 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 86.8K | 4.44M | Mar 2011 – Apr 2026 |
| Hayes-Albritton Est. -A- O-3-7973 | New Horizon Resources LLC only | Hankamer, SE. (Seg a Frio) | Chambers | 2 | 84K | 26.6K | Jan 1993 – Jul 2015 |
| Britt Ranch Unit O-14-8853 | Presidio Petroleum LLC only | Mills Ranch (Granite Wash Cons.) | Wheeler | 1 | 83.5K | 257K | Jul 2012 – Apr 2026 |
| D Britt 4 G-14-267990 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 80.6K | 2.79M | Feb 2012 – Apr 2026 |
| Allbritton O-10-40002 | Sabalo II Operating, LLC only | Spraberry (Trend Area) | Andrews | 4 | 79K | 237K | Jan 2010 – Apr 2026 |
| Britt Ranch Unit G-14-267181 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 78.9K | 1.63M | Aug 2011 – Apr 2026 |
| McMahan W 22 G-14-268068 | Unbridled Resources, LLC only | Allison-Britt (12350) | Wheeler | 1 | 75K | 6.12M | Feb 2012 – Apr 2026 |
| Elmore 32 G-14-267006 | Unbridled Resources, LLC only | Allison-Britt (12350) | Wheeler | 1 | 74.5K | 1.9M | May 2012 – Apr 2026 |
| Britt 9 G-14-267993 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 73.6K | 5.23M | May 2012 – Apr 2026 |
| Britt 43 G-14-265864 | Unbridled Resources, LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 73.5K | 3.24M | Nov 2011 – Apr 2026 |
| Britt G-14-262259 | Unbridled Resources, LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 71.7K | 2.18M | Apr 2011 – Apr 2026 |
| Britt G-14-261394 | Unbridled Resources, LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 71.6K | 979K | Mar 2011 – Apr 2026 |
| Britton Oil Unit O-6-13500 | WJH Energy, Inc. only | Carthage, S. (Pettit, Lo.) | Panola | 2 | 68.9K | 279K | Oct 1995 – Sep 2025 |
| Futch, J. C. O-11-67776 | Maverick Operating, LLC only | Britt (Spraberry) | Dawson | 1 | 68.2K | 36.1K | Jul 1997 – Apr 2026 |
| Britt O-11-64907 | Estancia Oil & Gas, LLC only | Britt (Spraberry) | Dawson | 1 | 67.9K | 8.57K | Jan 1993 – Oct 2005 |