| Adams, Lucy O-10-18552 | Sundown Energy LP only | Estes Block 34 (Penn.) | Ward | 13 | 855K | 3.94M | Jan 1993 – Mar 2026 |
| Richter, Louis O-10-36052 | Crescent Energy Operating, LLC only | Estes Block 34 (Penn.) | Ward | 9 | 314K | 3.26M | Jul 1999 – Apr 2026 |
| Estes, E. W. O-10-28816 | Two P Partners, LLC only | Estes Block-34 (Holt) | Ward | 9 | 272K | 875K | Jan 1993 – Apr 2026 |
| University "18-13B" O-10-36422 | WTG Exploration only | Block 17, Southeast (Delaware) | Ward | 3 | 257K | 539K | Oct 2000 – Apr 2026 |
| Estes, E. W. O-10-11619 | Sundown Energy LP only | Estes Block 34 (Penn.) | Ward | 21 | 250K | 1.99M | Jan 1993 – Mar 2026 |
| Hutchings Stock Assn. O-10-17212 | Sundown Energy LP only | Estes Block 34 (Penn.) | Ward | 13 | 228K | 895K | Jan 1993 – Mar 2026 |
| University 10-18 'A' O-10-33451 | Continental Resources, Inc. only | Block 18 (Cherry Canyon) | Ward | 4 | 216K | 1.59M | Jan 1993 – May 2023 |
| Soft Tail O-10-36537 | McGee Drilling Corporation only | Block 17, Southeast (Delaware) | Ward | 3 | 209K | 330K | Dec 2000 – Sep 2025 |
| State "XV" O-10-25051 | Kerr-McGee Oil & Gas Onshore LP only | Block 17, Southeast (Delaware) | Ward | 4 | 202K | 547K | Jan 1993 – Apr 2015 |
| University 11-18 'A' O-10-35111 | Continental Resources, Inc. only | Block 18 (Cherry Canyon) | Ward | 3 | 202K | 2.43M | Aug 1996 – May 2023 |
| Fat Boy O-10-37217 | McGee Drilling Corporation only | Block 17 (Cherry Canyon) | Ward | 3 | 197K | 474K | Nov 2003 – Apr 2026 |
| American National Life Ins. Co O-10-31768 | Crescent Energy Operating, LLC only | Estes Block 34 (Wolfcamp, Gas) | Ward | 8 | 178K | 2.97M | Jan 1993 – Apr 2026 |
| University "18-5A" O-10-36332 | WTG Exploration only | Block 17, Southeast (Delaware) | Ward | 3 | 174K | 302K | Jun 2000 – Apr 2026 |
| University 7 O-10-34368 | TS Oil, LLC only | Block 18 (Cherry Canyon) | Ward | 1 | 162K | 2.27M | Nov 1994 – Nov 2017 |
| Fat Boy O-10-36536 | McGee Drilling Corporation only | Block 17, Southeast (Delaware) | Ward | 1 | 159K | 191K | Aug 2000 – Apr 2026 |
| University "18-13A" O-10-36682 | WTG Exploration only | Block 17, Southeast (Delaware) | Ward | 3 | 132K | 402K | Aug 2001 – Apr 2026 |
| Richter, Louis O-10-36293 | Crescent Energy Operating, LLC only | Estes Block-34 (Holt) | Ward | 5 | 130K | 1.07M | Mar 2000 – Mar 2026 |
| U-Tex -S- O-10-18233 | WTG Exploration only | Block 17 (Lamar Lime) | Ward | 3 | 128K | 272K | Jan 1993 – Nov 2025 |
| University 1018 -B- O-10-30033 | Continental Resources, Inc. only | Block 18 (Cherry Canyon) | Ward | 4 | 124K | 422K | Jan 1993 – May 2023 |
| Richter, Louis O-10-39735 | Crescent Energy Operating, LLC only | Estes Block 34 (Wolfcamp, Gas) | Ward | 5 | 119K | 1.26M | Sep 2009 – Apr 2026 |
| University "8" O-10-34583 | TS Oil, LLC only | Block 18 (Cherry Canyon) | Ward | 1 | 118K | 1.4M | Aug 1995 – Dec 2022 |
| Hall, G. T. 31 G-10-126348 | Abraxas Petroleum Corporation only | Block 16 (Ellen.) | Ward | 1 | 112K | 15.3M | Jan 1993 – Apr 2026 |
| Thornton, Bluford "A" O-10-35826 | Upp Operating, LLC only | Block 16 (Atoka) | Ward | 1 | 109K | 306K | Sep 1997 – Apr 2026 |
| Campbell Estate, et Al G-10-54039 | XTO Energy Inc. only | Block 16 (Ellen.) | Ward | 1 | 97.4K | 15M | Jan 1993 – Mar 2026 |
| Lowe, Ralph Estate G-10-160226 | Amtex Energy, Inc. only | Block 16 (Atoka) | Ward | 1 | 97.1K | 623K | Jul 1996 – Apr 2026 |
| Pyote Gas Unit No. 7 G-10-48613 | XTO Energy Inc. only | Block 16 (Ellen.) | Ward | 1 | 93K | 13.8M | Jan 1993 – Apr 2026 |
| Richter, Louis O-10-35449 | Crescent Energy Operating, LLC only | Estes Block 34 (San Andres) | Ward | 4 | 84.9K | 138K | Jul 1997 – Oct 2025 |
| Richter "D" O-10-36764 | Walsh & Watts, Inc. only | Estes Block-34 (Holt) | Ward | 2 | 77.4K | 228K | Sep 2001 – Apr 2026 |
| UL Cochise O-10-44176 | Jagged Peak Energy LLC only | Block 17 (Cherry Canyon) | Ward | 1 | 77.2K | 72.7K | Jan 2013 – Apr 2020 |
| Pathomack 55 G-10-173889 | XTO Energy Inc. only | Block 16 (Montoya) | Ward | 1 | 76.9K | 18.2M | Jun 1999 – Apr 2026 |
| University 9-18 'B' O-10-36057 | Continental Resources, Inc. only | Block 18 (Cherry Canyon) | Ward | 1 | 76.7K | 386K | Jan 1999 – Dec 2022 |
| Adams Lucy O-10-55575 | Sundown Energy LP only | Estes Block 34 (Penn.) | Ward | 4 | 74.3K | 321K | Jan 2021 – Mar 2026 |
| State "XU" O-10-35590 | Kerr-McGee Oil & Gas Onshore LP only | Block 17, Southeast (Delaware) | Ward | 1 | 74K | 179K | Nov 1997 – Apr 2015 |
| Cooper -43- G-10-55978 | XTO Energy Inc. only | Block 16 (Ellen.) | Ward | 1 | 71.2K | 13.9M | Jan 1993 – Apr 2026 |
| Martin, W.H. "A" O-10-24626 | N & B Oil and Gas LLC only | Estes Block 34 (Penn.) | Ward | 6 | 70.8K | 2.55M | Jan 1993 – Apr 2026 |
| Dobbins, W. T. G-10-55817 | XTO Energy Inc. only | Block 16 (Ellen.) | Ward | 1 | 70.4K | 13.6M | Jan 1993 – Apr 2026 |
| Richter, Louis O-10-34133 | Eagle Rock Operating Company,llc only | Estes Block 34 (Wich.-Alb., L.) | Ward | 3 | 67.3K | 1.56M | Apr 1994 – Oct 2009 |
| State of Texas "14" O-10-38779 | Crescent Energy Operating, LLC only | Estes Block 34 (Wich.-Alb., L.) | Ward | 1 | 60.3K | 104K | Dec 2007 – Apr 2026 |
| Watson, L. A., et Al G-10-48903 | XTO Energy Inc. only | Block 16 (Ellen.) | Ward | 1 | 57.6K | 13.3M | Jan 1993 – Mar 2026 |
| University 9-18 'A' O-10-34850 | Continental Resources, Inc. only | Block 18 (Cherry Canyon) | Ward | 1 | 57.3K | 509K | Feb 1996 – Jan 2020 |
| Fred, I. O-10-18183 | Freedom Energy, Inc. only | Miller Block B-29 (Penn.) | Ward | 2 | 56.2K | 1.33M | Jan 1993 – Apr 2026 |
| Fortson Gas Unit G-10-58600 | XTO Energy Inc. only | Block 16 (Ellen.) | Ward | 1 | 55K | 12M | Jan 1993 – Apr 2026 |
| University 18-12A O-10-45897 | WTG Exploration only | Block 17, Southeast (Delaware) | Ward | 1 | 54.1K | 53.3K | Jan 2015 – Apr 2026 |
| State "OC" O-10-24215 | Cimarex Energy Co. of Colorado only | Block 17, Southeast (Delaware) | Ward | 3 | 52.7K | 261K | Jan 1993 – May 2016 |
| U-Tex-B- O-10-21340 | WTG Exploration only | Block 17, Southeast (Delaware) | Ward | 3 | 52.6K | 122K | Jan 1993 – Nov 2025 |
| Cooper 49 G-10-56791 | XTO Energy Inc. only | Block 16 (Ellen.) | Ward | 1 | 49.1K | 7.24M | Jan 1993 – Nov 2010 |
| Soft Tail G-10-175680 | McGee Drilling Corporation only | Block 17, Southeast (Delaware) | Ward | 1 | 48.7K | 919K | Nov 1999 – Jan 2025 |
| Estes, E. W. O-10-55576 | Two P Partners, LLC only | Estes Block 34 (Penn.) | Ward | 8 | 47.6K | 105K | Jan 2021 – Apr 2026 |
| Watson, L. A. G-10-178573 | XTO Energy Inc. only | Block 16 (Montoya) | Ward | 1 | 47.4K | 10.6M | Jan 2000 – Apr 2026 |
| Martin, W. H. O-10-24091 | N & B Oil and Gas LLC only | Estes Block 34 (Penn.) | Ward | 2 | 47.2K | 785K | Jan 1993 – Apr 2026 |