| Flanagan Unit O-11-66166 | Occidental Permian EOR, LLC only | Flanagan (Clearfork, Cons.) | Gaines | 220 | 15.9M | 5.02M | Jan 1993 – Apr 2026 |
| Flanagan 14-Lloyd B O-10-46618 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 6 | 2.46M | 3.95M | Jan 2014 – Apr 2026 |
| Flanagan 14-Lloyd A O-10-46623 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 6 | 1.95M | 2.81M | Dec 2013 – Apr 2026 |
| Flanagan "B" O-11-66162 | Hilcorp Energy Company only | Flanagan (Clearfork, Cons.) | Gaines | 7 | 962K | 250K | Nov 1995 – Apr 2026 |
| Flanagan O-11-66161 | Hilcorp Energy Company only | Flanagan (Clearfork, Cons.) | Gaines | 9 | 959K | 313K | Jan 1993 – Apr 2026 |
| Hawkins, W. L. O-11-1384 | Hilcorp Energy Company only | Flanagan (Devonian) | Gaines | 4 | 774K | 14.5K | Jan 1993 – Apr 2026 |
| Flanagan O-11-2478 | OXY USA WTP EOR, LLC only | Harris | Gaines | 7 | 623K | 57.2K | Jan 1993 – Mar 2016 |
| Flanagan, A. V. O-6-1633 | IV Standard, LLC only | Talco | Titus | 9 | 596K | 1.45K | Jan 1993 – Apr 2026 |
| Flanagan O-11-66160 | Walsh & Watts, Inc. only | Flanagan (Clearfork, Cons.) | Gaines | 6 | 425K | 96.8K | Jan 1993 – Apr 2026 |
| Kathleen-Flanagan 10J O-10-63717 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 367K | 445K | Aug 2025 – Apr 2026 |
| Kathleen-Flanagan 10C O-10-63708 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 330K | 592K | Aug 2025 – Apr 2026 |
| Kathleen-Flanagan 10E O-10-63803 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 320K | 502K | Aug 2025 – Apr 2026 |
| Kathleen-Flanagan 10G O-10-63729 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 308K | 194K | Aug 2025 – Apr 2026 |
| Modern Flanagan 13-24 Unit O-10-50864 | Highpeak Energy Holdings, LLC only | Spraberry (Trend Area) | Howard | 1 | 282K | 224K | Apr 2018 – Apr 2026 |
| Kathleen-Flanagan 10K O-10-63918 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 267K | 296K | Aug 2025 – Apr 2026 |
| Kathleen-Flanagan 10H O-10-63652 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 263K | 281K | Aug 2025 – Apr 2026 |
| Flanagan "14" O-10-37829 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 8 | 231K | 390K | Aug 2005 – Jul 2020 |
| Blocker-Flanagan 10G O-10-63800 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 222K | 383K | Jul 2025 – Apr 2026 |
| Blocker-Flanagan 10H O-10-63650 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 187K | 199K | Jul 2025 – Apr 2026 |
| Flanagan 13 O-10-47650 | Highpeak Energy Holdings, LLC only | Spraberry (Trend Area) | Howard | 4 | 185K | 1.27M | Apr 2016 – Apr 2026 |
| Blocker-Flanagan 10B O-10-63769 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 182K | 313K | Jul 2025 – Apr 2026 |
| Kathleen-Flanagan 10B O-10-63704 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 177K | 252K | Aug 2025 – Apr 2026 |
| Blocker-Flanagan 10J O-10-63912 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 173K | 225K | Jul 2025 – Apr 2026 |
| Blocker-Flanagan 10A O-10-63669 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 157K | 109K | Jul 2025 – Apr 2026 |
| Kathleen-Flanagan 10A O-10-63728 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 156K | 192K | Aug 2025 – Apr 2026 |
| Blocker-Flanagan 10E O-10-63702 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 147K | 168K | Jul 2025 – Apr 2026 |
| Blocker-Flanagan 10F O-10-63760 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 146K | 101K | Jul 2025 – Apr 2026 |
| Modern Flanagan O-10-48632 | Highpeak Energy Holdings, LLC only | Spraberry (Trend Area) | Howard | 3 | 142K | 709K | Dec 2016 – Apr 2026 |
| Flanagan Estate Deep O-11-66594 | Hilcorp Energy Company only | Flanagan (Devonian) | Gaines | 1 | 141K | 1.02K | Jan 1993 – Jan 2024 |
| Link O-11-67586 | Zarvona Energy LLC only | Flanagan (Clearfork, Cons.) | Gaines | 1 | 141K | 60.4K | Jun 1996 – Apr 2026 |
| Flanagan O-11-68913 | Hilcorp Energy Company only | Harris (San Andres) | Gaines | 6 | 140K | 41.6K | Oct 2004 – Apr 2026 |
| Blocker-Flanagan 10D O-10-63670 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 135K | 174K | Jul 2025 – Apr 2026 |
| 9807 JV-P Flanagan "A" O-10-36060 | Parsley Energy Operations, LLC only | Blalock Lake,s.(wolfcamp) | Glasscock | 1 | 133K | 252K | Aug 1999 – Jun 2019 |
| Flanagan O-10-39637 | XTO Energy Inc. only | Spraberry (Trend Area) | Martin | 2 | 122K | 486K | Aug 2009 – Apr 2026 |
| Blocker-Flanagan 10I O-10-63709 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 114K | 119K | Jul 2025 – Apr 2026 |
| Hollingsworth O-11-69003 | Kimbell Operating Company only | Flanagan (Clearfork, Cons.) | Gaines | 1 | 114K | 18K | Oct 2006 – Apr 2026 |
| Flanagan Unit O-11-66633 | Hilcorp Energy Company only | Harris | Gaines | 7 | 91.2K | 20.4K | Jan 1993 – Apr 2012 |
| Flanagan -A- O-10-26729 | Highpeak Energy Holdings, LLC only | Red Draw (Fusselman) | Howard | 2 | 88.3K | 201K | Jan 1993 – Mar 2023 |
| Kathleen-Flanagan 10F O-10-63673 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 87.9K | 84.5K | Aug 2025 – Apr 2026 |
| Lawson O-11-66165 | Wishbone Texas Operating Co LLC only | Flanagan (Clearfork, Cons.) | Gaines | 1 | 73.8K | 21 | Jan 1993 – Aug 2016 |
| Annie Flanagan O-10-40303 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 2 | 67.6K | 144K | May 2010 – Mar 2020 |
| Flanagan, Annie Oil Management O-10-16719 | Arya Resources, LLC only | Spraberry (Trend Area) | Martin | 2 | 65.8K | 120K | Jan 1993 – Apr 2026 |
| Flanagan -B- O-10-26937 | Highpeak Energy Holdings, LLC only | Red Draw (Fusselman) | Howard | 2 | 65.5K | 160K | Jan 1993 – Jan 2026 |
| 9807 JV-P Flanagan O-10-36055 | Parsley Energy Operations, LLC only | Blalock Lake,s.(wolfcamp) | Glasscock | 1 | 56.6K | 126K | Jul 1999 – Feb 2019 |
| Flanagan B Unit O-10-48415 | Highpeak Energy Holdings, LLC only | Spraberry (Trend Area) | Howard | 1 | 52.9K | 222K | Sep 2016 – Apr 2026 |
| Flanagan a Unit O-10-48080 | Highpeak Energy Holdings, LLC only | Spraberry (Trend Area) | Howard | 1 | 44.7K | 235K | Sep 2016 – Apr 2026 |
| Kathleen-Flanagan 10I O-10-63830 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 41.4K | 46.6K | Aug 2025 – Apr 2026 |
| Flanagan O-6-12176 | Rockcliff Energy Operating LLC only | Danville (Pettit-A-Oil) | Gregg | 1 | 40.9K | 226K | Jan 1993 – Oct 2023 |
| Flanagan 30 O-10-45263 | Crescent Energy Operating, LLC only | Spraberry (Trend Area) | Glasscock | 2 | 38.9K | 61.9K | May 2014 – Apr 2026 |
| Flanagan O-10-29581 | Pioneer Natural Res. USA, Inc. only | Mid-Mar, East (Strawn) | Martin | 1 | 33.6K | 102K | Jan 1993 – Sep 2023 |