| Mudd Unit A O-1-16825 | Ensign Natural Resources II LLC only | Eagleville (Eagle Ford-1) | Gonzales | 3 | 1.11M | 2.25M | Jun 2013 – Sep 2025 |
| Muddy River Unit EB O-3-26605 | Wildfire Energy Operating LLC only | Madisonville, W. (Woodbine -A-) | Burleson | 3 | 277K | 110K | Jul 2014 – Jul 2026 |
| Mudd a Steen a Ulw O-2-12736 | Ensign Natural Resources II LLC only | Eagleville (Eagle Ford-2) | De Witt | 1 | 264K | 754K | Dec 2023 – Aug 2026 |
| Kinky Muddler O-5-4124 | Wildfire Energy Operating LLC only | Aguila Vado (Eagleford) | Burleson | 1 | 235K | 375K | Jan 2015 – Jul 2026 |
| State Muddy Waters Unit G-10-279407 | EOG Resources, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 203K | 2.77M | Dec 2015 – Aug 2026 |
| State Muddy Waters Unit G-10-292946 | EOG Resources, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 189K | 3.4M | Aug 2023 – Aug 2026 |
| Mudd a Steen a Ulw G-2-295642 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | De Witt | 1 | 174K | 261K | Jul 2023 – Nov 2023 |
| Mudduck Unit O-10-64323 | Carr Resources, Inc. only | Garden City, S. (Wolfcamp) | Scurry | 2 | 155K | 174K | Apr 2022 – Sep 2025 |
| State Muddy Waters Unit G-10-292947 | EOG Resources, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 118K | 1.46M | Aug 2023 – Aug 2026 |
| State Muddy Waters Unit G-10-292945 | EOG Resources, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 96.6K | 1.8M | Aug 2023 – Aug 2026 |
| State Muddy Waters Unit G-10-292939 | EOG Resources, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 76.1K | 702K | Aug 2023 – Aug 2026 |
| State Muddy Waters Unit G-10-292948 | EOG Resources, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 61.4K | 3.68M | Aug 2023 – Aug 2026 |
| UL 19 Muddler G O-10-63112 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 61.2K | 113K | May 2024 – Aug 2026 |
| UL 19 Muddler C O-10-63108 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 59.9K | 186K | May 2024 – Aug 2026 |
| UL 19 Muddler D O-10-63109 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 59.1K | 74.6K | May 2024 – Aug 2026 |
| UL 19 Muddler A O-10-63540 | Pdeh LLC only | Two Georges (Bone Spring) | Loving | 1 | 45.7K | 75.2K | May 2024 – Aug 2026 |
| UL 19 Muddler E O-10-63110 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 36K | 17.3K | May 2024 – Aug 2026 |
| Arnold O-10-27233 | Muddy River Petroleum, LLC only | Olds (Delaware) | Reeves | 6 | 33.5K | 71K | by Jan 1993 – Jul 2009 |
| UL 19 Muddler K O-10-65556 | Pdeh LLC only | Two Georges (Bone Spring) | Loving | 1 | 32.1K | 35.5K | Aug 2026 – Aug 2026 |
| UL 19 Muddler I O-10-65446 | Pdeh LLC only | Two Georges (Bone Spring) | Loving | 1 | 31.7K | 33.2K | Aug 2026 – Aug 2026 |
| UL 19 Muddler H O-10-63113 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 31K | 13.7K | May 2024 – Aug 2026 |
| UL 19 Muddler B O-10-63107 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 28.6K | 24.4K | May 2024 – Aug 2026 |
| UL 19 Muddler F O-10-63111 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 26K | 52.3K | May 2024 – Aug 2026 |
| UL 19 Muddler J O-10-65447 | Pdeh LLC only | Two Georges (Bone Spring) | Loving | 1 | 17.8K | 20.4K | Aug 2026 – Aug 2026 |
| Mudd Ranch O-1-12894 | JB Oil & Gas Well Service only | Pearsall (Austin Chalk) | Frio | 1 | 16.5K | 16.6K | by Jan 1993 – Jun 1997 |
| Mudd, O. A. O-2-545 | Abel, M.D. Co. only | Green | Karnes | 2 | 8.46K | 11.3K | by Jan 1993 – May 2000 |
| Mudd O-2-4217 | Arete Operating Company, LLC only | Monson, SW. (6270 Luling) | Karnes | 1 | 6.81K | 4.74K | by Jan 1993 – Apr 1998 |
| Npu ( Mudd, O A -A1) G-2-158906 | Paleo Oil Company LLC only | Tulsita-Wilcox ( 6800 Reklaw) | Goliad | 1 | 6.32K | 1.21M | Jun 1996 – Jul 2026 |
| Mudd, D. L. O-2-8578 | Angel Operating LLC only | West Ranch (Frio 6840) | Jackson | 1 | 6.09K | 10.2K | Nov 2000 – May 2014 |
| UL 19 Muddler L O-10-65532 | Pdeh LLC only | Two Georges (Bone Spring) | Loving | 1 | 5.55K | 9.07K | Aug 2026 – Aug 2026 |
| Mudd, Mary Maude O-2-4575 | One Tec Operating, LLC only | Monson, SW. (6250 Luling) | Karnes | 2 | 5.07K | 4.52K | by Jan 1993 – Apr 1998 |
| Npu (Mudd, O J -1 ) G-2-4525 | Paleo Oil Company LLC only | Tulsita-Wilcox ( 6800 Reklaw) | Goliad | 1 | 4.87K | 580K | by Jan 1993 – Mar 2010 |
| Npu (O.A. Mudd 5-A) G-2-257879 | Paleo Oil Company LLC only | Tulsita-Wilcox (7,900) | Goliad | 1 | 3.42K | 978K | Aug 2010 – Aug 2025 |
| Npu (Mudd, OJ-2) G-2-136127 | Paleo Oil Company LLC only | Tulsita-Wilcox (MWC) | Goliad | 1 | 1.82K | 332K | by Jan 1993 – Feb 2006 |
| Kiwi Muddler G-13-238321 | Arrington Oil&gas Operating LLC only | Newark, East (Barnett Shale) | Hood | 1 | 1.06K | 20.1K | Mar 2008 – Apr 2010 |
| Npu (O a Mudd 7-A) G-2-233790 | Paleo Oil Company LLC only | Tulsita-Wilcox (MWC) | Goliad | 1 | 798 | 2.06M | Dec 2007 – Jul 2026 |
| Npu (O.J. Mudd 3) G-2-257803 | Paleo Oil Company LLC only | Tulsita-Wilcox (8000) | Goliad | 1 | 627 | 961K | Jul 2010 – Oct 2024 |
| Kiwi Muddler G-13-238324 | Arrington Oil&gas Operating LLC only | Newark, East (Barnett Shale) | Hood | 1 | 595 | 251K | Mar 2008 – Mar 2012 |
| Mudd O-1-5049 | U.S.A. Plugging, Inc. only | Pearsall (Austin Chalk) | Frio | 1 | 202 | 3 | Nov 1993 – Mar 1994 |
| Npu (O a Mudd 8A) G-2-253940 | Paleo Oil Company LLC only | Tulsita-Wilcox (MWC) | Goliad | 1 | 126 | 158K | Feb 2009 – Apr 2018 |
| Mudd, O.A. O-2-7929 | Abel, M.D. Co. only | Green (Queen City) | Karnes | 1 | 45 | 15 | Sep 1994 – Jan 1996 |
| Npu (Mudd, O.J. - 2) G-2-219850 | Paleo Oil Company LLC only | Tulsita-Wilcox (7,900) | Goliad | 1 | 2 | 807K | Feb 2006 – Mar 2016 |
| Kiwi Muddler G-13-238320 | Arrington Oil&gas Operating LLC only | Newark, East (Barnett Shale) | Hood | 1 | 1 | 51.1K | Mar 2008 – Jan 2010 |
| Npu (O. A. Mudd 5-A) G-2-232138 | Legend Natural Gas II, LP only | Tulsita-Wilcox (MWC) | Goliad | 1 | 0 | 1.07M | Sep 2007 – Jul 2010 |
| Mudd, D. L. G-2-135272 | Engelke, R. H. only | West Ranch (Frio 6840) | Jackson | 1 | 0 | 0 | — |
| Mudd G-2-122595 | One Tec Operating, LLC only | Monson (Queen City) | Karnes | 1 | 0 | 34K | by Jan 1993 – Sep 1995 |
| Mudd, O. A. G-2-98745 | Staples, Tommy Oil Co. only | Green (Queen City) | Karnes | 1 | 0 | 0 | — |
| Mudd, Mary Maude G-2-59547 | White Oak Operating Company LLC only | Monson (Queen City) | Bee | 1 | 0 | 23.1K | by Jan 1993 – Mar 2014 |
| Npu (Mudd,o a -A2 ) G-2-52663 | Legend Natural Gas II, LP only | Tulsita-Wilcox ( Luling) | Goliad | 1 | 0 | 0 | — |
| Mudd, Mary Maude G-2-40743 | One Tec Operating, LLC only | Monson, SW. (6500 Massive) | Karnes | 1 | 0 | 0 | — |