| Mahler 107 G-14-275458 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 227K | 3.28M | Nov 2013 – Aug 2026 |
| Mahler "B" G-14-267530 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 217K | 2.31M | Jan 2012 – Aug 2026 |
| Mahler G-14-267606 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 201K | 2.35M | Feb 2012 – Aug 2026 |
| Mahler 106 G-14-276528 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 184K | 3.22M | Sep 2014 – Aug 2026 |
| Mahler, Fields O-14-5811 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash, SW.) | Roberts | 9 | 177K | 3.14M | by Jan 1993 – Aug 2026 |
| Mahler G-14-276591 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 165K | 2.12M | Jun 2014 – Aug 2026 |
| Mahler 106 G-14-276489 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 142K | 1.5M | Aug 2014 – Aug 2026 |
| Mahler 108 G-14-278402 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 131K | 3.34M | Jun 2015 – Aug 2026 |
| Mahler O-14-5257 | Unit Petroleum Company only | Mendota, NW. (Granite Wash, SW.) | Roberts | 8 | 119K | 2.5M | by Jan 1993 – May 2012 |
| Mahler G-14-271285 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 118K | 3.87M | Feb 2013 – Aug 2026 |
| Mahler 107 O-14-9274 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 83.2K | 976K | Sep 2014 – Mar 2023 |
| Kunkel O-13-22486 | Kelly Mahler Operating, LLC only | Young County Regular | Young | 13 | 60.1K | 27 | by Jan 1993 – Aug 2026 |
| Mahler G-14-269798 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 54K | 2.1M | Apr 2013 – Aug 2026 |
| Mahler G-14-267979 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Hemphill | 1 | 50.7K | 623K | Mar 2012 – Aug 2026 |
| Mahler G-14-268643 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Hemphill | 1 | 49.4K | 595K | Oct 2012 – Aug 2026 |
| Mahler "A" G-14-265522 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 46.4K | 1.18M | Feb 2011 – Aug 2026 |
| Prideaux, Nellie O-13-7642 | Kelly Mahler Operating, LLC only | Young County Regular | Young | 15 | 44.4K | 21 | by Jan 1993 – Aug 2026 |
| Prideaux, R.O. Unit O-13-28721 | Kelly Mahler Operating, LLC only | Young County Regular | Young | 10 | 41.1K | 9 | Jan 1994 – Aug 2026 |
| Mahler "A" O-14-7977 | Unit Petroleum Company only | Canadian, West (Morrow, Upper "A | Roberts | 2 | 38.9K | 1.23M | Nov 2007 – Aug 2026 |
| Mahler G-14-280072 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 35.8K | 543K | Aug 2015 – Aug 2026 |
| Mahler "D" G-14-267605 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 33.6K | 807K | Dec 2011 – Aug 2026 |
| Mahler "D" G-14-264796 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 32.2K | 783K | Dec 2010 – Dec 2017 |
| Mahler, Fields G-14-268644 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 30.2K | 956K | Apr 2012 – Aug 2026 |
| Justice Heirs O-13-30591 | Kelly Mahler Operating, LLC only | Archer County Regular | Archer | 6 | 30K | 0 | Oct 2006 – Aug 2026 |
| Mahler "B" O-14-7844 | Unit Petroleum Company only | Mendota, NW. (Granite Wash, SW.) | Roberts | 2 | 29.1K | 228K | Feb 2008 – May 2010 |
| Mahler O-14-4536 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 2 | 28.2K | 382K | by Jan 1993 – Jun 2019 |
| Mahler -A- G-14-153298 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 27.4K | 496K | Dec 1994 – Dec 2015 |
| Mahler O-14-7406 | Brighton Energy, L.L.C. only | Parsell, South (Morrow Upper) | Roberts | 1 | 25.8K | 1.31M | Dec 2001 – Jan 2003 |
| Mahler "D" G-14-254558 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 24.2K | 280K | Oct 2009 – Aug 2026 |
| Mahler 'A' O-14-4995 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash, SW.) | Roberts | 2 | 19.2K | 331K | by Jan 1993 – Feb 2023 |
| Mahler G-14-256360 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 18.9K | 815K | Mar 2010 – Aug 2026 |
| Justice Heirs -A- O-13-30593 | Kelly Mahler Operating, LLC only | Archer County Regular | Archer | 10 | 18.5K | 0 | Mar 2006 – Aug 2026 |
| Mahler G-14-234070 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 18.4K | 709K | Jan 2008 – Aug 2026 |
| Wes Lease O-13-25416 | Kelly Mahler Operating, LLC only | Young County Regular | Young | 1 | 18.2K | 17 | by Jan 1993 – Aug 2026 |
| Mahler, Fields G-14-74945 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 17.7K | 1.01M | by Jan 1993 – Aug 2026 |
| Justice Heirs -C- O-13-11122 | Kelly Mahler Operating, LLC only | Archer County Regular | Archer | 7 | 16.3K | 94 | by Jan 1993 – Aug 2026 |
| Mahler, Fields G-14-87995 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 16.2K | 1.38M | by Jan 1993 – Aug 2026 |
| Mahler "C" O-14-7909 | Unit Petroleum Company only | Mendota, NW. (Granite Wash, SW.) | Roberts | 2 | 16.2K | 185K | Jun 2008 – May 2010 |
| Mahler G-14-262462 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 16.1K | 583K | Nov 2010 – May 2013 |
| Mahler G-14-258216 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 15.8K | 391K | May 2010 – Nov 2025 |
| Mahler 27 O-14-8610 | Presidio Petroleum LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 14.5K | 306K | Aug 2010 – Aug 2026 |
| Mahler G-14-104338 | Bracken Operating, L.L.C. only | Parsell (Morrow, Upper) | Hemphill | 1 | 13.8K | 986K | by Jan 1993 – Mar 2016 |
| Justice, W. M. -B- O-13-30592 | Kelly Mahler Operating, LLC only | Archer County Regular | Archer | 5 | 13.1K | 0 | Mar 2006 – Aug 2026 |
| Mahler "A" O-13-26491 | Rbe Jack Archer, LLC only | Mahler (Caddo) | Archer | 1 | 11.4K | 5 | Feb 1993 – Aug 2015 |
| Mahler G-14-278454 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 9.74K | 411K | Jun 2015 – Aug 2026 |
| Mahler "B" G-14-258224 | Unit Petroleum Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 9.62K | 95.1K | May 2010 – Oct 2016 |
| Whittenton O-13-16462 | Kelly Mahler Operating, LLC only | A. V. C. (Strawn) | Archer | 3 | 7.02K | 21 | by Jan 1993 – Aug 2002 |
| Menton Prideaux O-13-32607 | Kelly Mahler Operating, LLC only | Young County Regular | Young | 1 | 6.91K | 0 | Jul 2013 – Aug 2026 |
| Mahler G-14-199376 | Unit Petroleum Company only | Parsell, South (Morrow Upper) | Roberts | 1 | 6.86K | 1.51M | Feb 2003 – Dec 2005 |
| Mahler & Scott Unit O-13-25835 | Mash Oilfield Services, LP only | Swink, East (Mississippian) | Young | 1 | 6.64K | 21 | by Jan 1993 – Sep 2019 |