| Holman-Fagan G-1-169643 | Texakoma E & P, LLC | Frances Hill (Penn, Lower) | 1 | 8.26K | 3.1M | Jun 1998 – Mar 2026 |
| Holman-Fagan G-1-178562 | Texakoma E & P, LLC | Frances Hill (Penn, Lower) | 1 | 6.8K | 5.77M | Mar 2000 – Mar 2026 |
| University Lands 45 G-1-167364 | Texakoma E & P, LLC | Frances Hill (Penn, Lower) | 1 | 5.17K | 6.32M | Feb 1998 – Mar 2026 |
| Hill G-1-158328 | Marshall & Winston, Inc. | Frances Hill (Penn, Lower) | 1 | 3.8K | 1.58M | Jun 1996 – Oct 2001 |
| Turney G-1-159577 | Texakoma E & P, LLC | Frances Hill (Penn, Lower) | 1 | 2.9K | 1.67M | Aug 1996 – Oct 2024 |
| Hill, Frances -66- G-1-160065 | Henry Petroleum LLC | Frances Hill (Penn, Lower) | 1 | 2.83K | 1.61M | Aug 1996 – Mar 2026 |
| University Lands 45 G-1-169644 | Texakoma E & P, LLC | Frances Hill (Penn, Lower) | 1 | 2.71K | 3.17M | Jun 1998 – Mar 2026 |
| Hill G-1-159863 | Texakoma E & P, LLC | Frances Hill (Penn, Lower) | 1 | 2.65K | 1.23M | Aug 1996 – Mar 2026 |
| Spirit "A" G-1-171315 | Marshall & Winston, Inc. | Frances Hill (Penn, Lower) | 1 | 2.46K | 2.4M | Nov 1998 – Jul 2011 |
| Texas A&m "62" G-1-133654 | Johnson & Lindley, LLC | Frances Hill (Penn) | 1 | 2.26K | 2.46M | Jan 1993 – Feb 2026 |
| Hill, Frances -67- G-1-159920 | Henry Petroleum LLC | Frances Hill (Penn, Lower) | 1 | 2.17K | 955K | Aug 1996 – Dec 2025 |
| University Lands 64 G-1-161127 | Texakoma E & P, LLC | Frances Hill (Penn, Lower) | 1 | 1.98K | 1.77M | Dec 1996 – Jul 2022 |
| University Lands 45 G-1-167366 | Texakoma E & P, LLC | Frances Hill (Penn, Lower) | 1 | 1.54K | 2.53M | Feb 1998 – Mar 2026 |
| Texas a & M -69- G-1-53097 | Johnson & Lindley, LLC | Frances Hill (Penn) | 1 | 1.49K | 1.62M | Jan 1993 – Feb 2026 |
| Hill, Grady Mrs. G-1-85255 | Now Development Co., Inc. | Frances Hill (Penn, Lower) | 1 | 1.34K | 530K | Jan 1993 – Nov 2007 |
| Canyon Ranch G-1-138627 | Upp Operating, LLC | Jack Rabbit (Holman) | 1 | 1.18K | 694K | Jan 1993 – Jan 2009 |
| Holman-Fagan G-1-171726 | Texakoma E & P, LLC | Frances Hill (Penn, Lower) | 1 | 953 | 926K | Jan 1999 – Feb 2025 |
| Carpenter G-1-222339 | Texakoma E & P, LLC | Jack Mann (Penn) | 1 | 860 | 920K | Sep 2006 – Mar 2026 |
| Texas a & M -63- G-1-53243 | Johnson & Lindley, LLC | Frances Hill (Penn) | 1 | 736 | 857K | Jan 1993 – Feb 2026 |
| Hill, Frances -85- G-1-52528 | Johnson & Lindley, LLC | Frances Hill (Penn) | 1 | 732 | 607K | Jan 1993 – Feb 2026 |
| Cox -84- G-1-53095 | Johnson & Lindley, LLC | Frances Hill (Penn) | 1 | 626 | 586K | Jan 1993 – Feb 2026 |
| Mayfield SB G-9-258606 | Upp Operating, LLC | Sawyer (Canyon) | 1 | 543 | 411K | Apr 2010 – Apr 2026 |
| Canyon Ranch G-1-126129 | Upp Operating, LLC | Frances Hill (Penn) | 1 | 521 | 466K | Jan 1993 – Apr 2026 |
| Canyon Ranch G-1-136556 | Upp Operating, LLC | Kelley (Ellenburger) | 1 | 506 | 2.1M | Jan 1993 – Feb 2026 |
| Mann, Jack "8" G-9-165468 | Henry Petroleum LLC | Sawyer (Canyon) | 1 | 471 | 591K | Oct 1997 – Jan 2018 |
| Reveille G-1-166141 | Marshall & Winston, Inc. | Frances Hill (Penn, Lower) | 1 | 454 | 820K | Nov 1997 – Mar 2012 |
| Canyon Ranch G-1-53098 | Upp Operating, LLC | Frances Hill (Penn) | 1 | 351 | 211K | Jan 1993 – Apr 2026 |
| Canyon Ranch G-1-55132 | Upp Operating, LLC | Frances Hill (Penn) | 1 | 333 | 401K | Jan 1993 – Apr 2026 |
| University Lands 63 G-1-171476 | Texakoma E & P, LLC | Frances Hill (Penn, Lower) | 1 | 326 | 678K | Dec 1998 – Mar 2024 |
| Turney G-1-160548 | Marshall & Winston, Inc. | Frances Hill (Penn, Lower) | 1 | 316 | 253K | Oct 1996 – Aug 2005 |
| Hill -68- G-1-63705 | Petex | Frances Hill (Penn) | 1 | 267 | 859K | Jan 1993 – Feb 2026 |
| Barr 59 G-1-233815 | Comstock Energy, LLC | Geronimo Creek (Ellenburger) | 1 | 252 | 73.9K | Jan 2008 – Oct 2015 |
| Hill, Frances -68- G-1-53096 | Johnson & Lindley, LLC | Frances Hill (Penn) | 1 | 251 | 313K | Jan 1993 – Feb 2026 |
| Canyon Ranch G-1-152134 | Upp Operating, LLC | Kelley (Ellenburger) | 1 | 249 | 3.56M | Aug 1994 – Apr 2026 |
| Texas a & M "69" G-1-177405 | Johnson & Lindley, LLC | Frances Hill (Penn) | 1 | 243 | 871K | Jan 2000 – Feb 2026 |
| Mayfield Ranch "K" G-9-124725 | Upp Operating, LLC | M. M. W. (Canyon) | 1 | 229 | 805K | Jan 1993 – Apr 2026 |
| Hill, Frances "85" G-1-148187 | Johnson & Lindley, LLC | Frances Hill (Penn) | 1 | 190 | 328K | Feb 1994 – Feb 2026 |
| Peterson, H. & C. G-9-76896 | Upp Operating, LLC | Sawyer (Canyon) | 1 | 183 | 244K | Jan 1993 – Apr 2026 |
| Texas a & M -63- G-1-176803 | Johnson & Lindley, LLC | Frances Hill (Penn, Lower) | 1 | 180 | 762K | Jan 2000 – Feb 2026 |
| Turney G-1-160547 | Marshall & Winston, Inc. | Frances Hill (Penn, Lower) | 1 | 179 | 166K | Oct 1996 – Nov 2004 |
| Mayfield SB G-9-264596 | Upp Operating, LLC | Sawyer (Canyon) | 1 | 170 | 192K | Apr 2010 – Apr 2026 |
| Canyon Ranch G-1-157987 | Upp Operating, LLC | Kelley (Ellenburger) | 1 | 169 | 1.05M | Oct 1995 – Feb 2026 |
| Reveille G-1-162870 | Marshall & Winston, Inc. | Frances Hill (Penn, Lower) | 1 | 168 | 123K | May 1997 – Jun 2000 |
| Holman 25 G-1-214576 | Great Western Drilling Company | Frances Hill (Penn, Lower) | 1 | 166 | 187K | Dec 2005 – Jan 2018 |
| Greer G-1-183515 | Rio-Tex, Inc. | Goldman (Canyon) | 1 | 165 | 164K | Jul 2000 – Apr 2020 |
| Canyon Ranch G-1-149395 | Upp Operating, LLC | Kelley (Ellenburger) | 1 | 147 | 2.83M | Mar 1994 – Mar 2026 |
| Canyon Ranch G-1-56701 | Upp Operating, LLC | Frances Hill (Penn) | 1 | 147 | 226K | Jan 1993 – Apr 2026 |
| Mayfield Ranch "A" G-9-115604 | Upp Operating, LLC | M. M. W. (Canyon) | 1 | 124 | 400K | Jan 1993 – Apr 2026 |
| Holman-Fagan G-1-178560 | Texakoma E & P, LLC | Frances Hill (Penn, Lower) | 1 | 122 | 351K | May 2000 – Mar 2026 |
| Mitchell G-9-258562 | Upp Operating, LLC | Sawyer (Canyon) | 1 | 116 | 21.3K | Jul 2010 – Jul 2025 |