| Middleton Unit a 47-38 O-10-48795 | Surge Operating, LLC only | Spraberry (Trend Area) | Howard | 7 | 2.35M | 5.24M | Jul 2016 – Mar 2026 |
| Hamlin-Middleton Unit 16-21 O-10-46637 | Surge Operating, LLC only | Spraberry (Trend Area) | Howard | 8 | 2.08M | 4.7M | Feb 2015 – Mar 2026 |
| Middleton Unit B 47-38 O-10-46093 | Surge Operating, LLC only | Spraberry (Trend Area) | Howard | 9 | 1.78M | 3.75M | Jul 2014 – Mar 2026 |
| Wright O-10-33696 | Cobra Oil & Gas Corporation only | Middleton (Canyon Reef) | Howard | 8 | 589K | 435K | Jan 1993 – Aug 2011 |
| Monroe City Ranch O-3-26897 | Hilcorp Energy Company only | Middleton Ranch | Chambers | 1 | 553K | 1.32M | May 2015 – Oct 2018 |
| Adams Unit O-10-33700 | Diamondback E&P LLC only | Middleton (Canyon Reef) | Howard | 1 | 336K | 207K | Feb 1993 – Oct 2025 |
| Middleton, A. D. a/C #1 O-3-82 | Texas Petroleum Investment Co. only | Anahuac | Chambers | 35 | 300K | 3.11M | Jan 1993 – Apr 2026 |
| Middleton, A. D., a/C #1 O-3-6939 | Texas Petroleum Investment Co. only | Anahuac (FB a-2, Frio 13) | Chambers | 4 | 295K | 193K | Jan 1993 – Apr 2026 |
| Clara Adams Unit 37 O-10-34811 | Diamondback E&P LLC only | Middleton (Canyon Reef) | Howard | 1 | 262K | 265K | Jan 1996 – Nov 2018 |
| Middleton -124- O-10-20729 | Apache Corporation only | Rhoda Walker (Canyon 5900) | Ward | 12 | 205K | 948K | Jan 1993 – Feb 2019 |
| Middleton Petroleum O-1-3335 | Burnett Oil Co., Inc. only | Taylor-Ina | Medina | 147 | 159K | 27 | Jan 1993 – Apr 2026 |
| SE Ackerly A O-10-36943 | Surge Operating, LLC only | Middleton (Canyon Reef) | Howard | 1 | 129K | 71.8K | Aug 2002 – Apr 2019 |
| Middleton, A.D. a/C 5 O-3-18119 | Texas Petroleum Investment Co. only | Anahuac | Chambers | 2 | 115K | 172K | Jan 1993 – Apr 2026 |
| Middleton West 35 WB O-10-60239 | Hog Operating LLC only | Spraberry (Trend Area) | Howard | 1 | 107K | 111K | Sep 2023 – Mar 2026 |
| Middleton, Archie O-3-3313 | Denbury Onshore, LLC only | Oyster Bayou | Chambers | 12 | 104K | 1.23M | Jan 1993 – Oct 2003 |
| Middleton-Sachs a Unit O-1-17144 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 2 | 95.2K | 692K | Dec 2013 – Apr 2026 |
| Middleton West 35-WB O-10-60236 | Hog Operating LLC only | Spraberry (Trend Area) | Howard | 1 | 94.2K | 85.7K | Sep 2023 – Mar 2026 |
| Middleton West 35 MS O-10-60238 | Hog Operating LLC only | Spraberry (Trend Area) | Howard | 1 | 85.5K | 253K | Oct 2023 – Mar 2026 |
| Middleton West 35 LS O-10-60237 | Hog Operating LLC only | Spraberry (Trend Area) | Howard | 1 | 78.3K | 105K | Oct 2023 – Mar 2026 |
| Middleton O-11-66335 | Fasken Oil and Ranch, Ltd. only | Aljenda - BLP (Ellenburger) | Garza | 3 | 78K | 40.7K | Oct 1994 – Jun 2012 |
| Middleton West 35-LS O-10-60240 | Hog Operating LLC only | Spraberry (Trend Area) | Howard | 1 | 76.4K | 106K | Oct 2023 – Mar 2026 |
| Middleton, A. D. a/C #4 O-3-85 | Texas Petroleum Investment Co. only | Anahuac | Chambers | 5 | 73.6K | 121K | Jan 1993 – Apr 2026 |
| Phillips Unit O-10-35110 | Cobra Oil & Gas Corporation only | Middleton (Canyon Reef) | Martin | 1 | 62.5K | 82.5K | Nov 1996 – Jul 2006 |
| Bulldog O-10-35216 | Element Petroleum Operating, LLC only | Middleton (Canyon Reef) | Howard | 1 | 62.3K | 59.8K | Feb 1997 – May 2006 |
| Middleton O-10-38237 | Ovintiv USA Inc. only | Spraberry (Trend Area) | Martin | 3 | 55.8K | 47.6K | Mar 2007 – Dec 2025 |
| Middleton O-11-66417 | Aviator Energy, LLC only | Aljenda - BLP (Strawn) | Garza | 3 | 47.4K | 31.3K | Jan 1993 – Apr 2026 |
| Lester O-10-33694 | DKL Water Gathering Permian, LLC only | Middleton (Canyon Reef) | Howard | 2 | 44.5K | 40.9K | Jan 1993 – May 2019 |
| Middleton "44" O-10-35092 | Palo Petroleum, Inc. only | Flora (Canyon Congl.) | Howard | 1 | 36.4K | 38K | Aug 1996 – Dec 2001 |
| Middleton, W. F. O-13-26786 | Barnett Energy, Inc. only | Hildreth (Strawn 5500, Lo.) | Montague | 1 | 34.7K | 36 | Jan 1993 – Mar 2026 |
| Middleton, Mary O-13-17945 | Burk Royalty Co., Ltd. only | Lockett, East (Ellen) | Wilbarger | 2 | 31.9K | 21 | Jan 1993 – Oct 2020 |
| Hardy-Middleton Unit O-13-29804 | Texxol Operating Company, Inc. only | Risch, East (Caddo Congl.) | Wise | 2 | 30.8K | 6.43K | Jan 2000 – Apr 2026 |
| Booth-Middleton a Unit O-1-17035 | Carrizo (Eagle Ford) LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 21.7K | 117K | Jul 2014 – Oct 2014 |
| Middleton 21 O-10-45642 | Oxyrock Operating, LLC only | Spraberry (Trend Area) | Howard | 1 | 21K | 170K | Apr 2014 – Apr 2026 |
| Middleton O-10-39510 | Surge Operating, LLC only | Spraberry (Trend Area) | Howard | 1 | 20.5K | 36.1K | Apr 2009 – Mar 2018 |
| Middleton O-11-64286 | MWS Producing, Inc. only | Ackerly (Dean Sand) | Martin | 1 | 19.7K | 13.7K | Jan 1993 – Jan 1998 |
| White -A- O-10-31945 | Anadarko Petroleum Corporation only | Middleton (Canyon Reef) | Howard | 1 | 15.5K | 10.7K | Jan 1993 – Sep 1995 |
| Middleton, W. F. O-13-18801 | Bah-Pepper Operating, LLC only | Arnold Bruner (Jameson) | Montague | 2 | 15.4K | 22 | Jan 1993 – Apr 2026 |
| Middleton 124-D O-10-31781 | Apache Corporation only | Rhoda Walker (Canyon 5900) | Ward | 1 | 13.8K | 243K | Jan 1993 – Apr 2018 |
| Middleton O-11-64030 | Big Star Oil & Gas, LLC only | Ackerly (Dean Sand) | Martin | 1 | 12.3K | 13.6K | Jan 1993 – Mar 2011 |
| Middleton, A. D., a/C #1 O-3-7037 | Exxon Corp. only | Anahuac (FB a-2, Frio 11) | Chambers | 4 | 12.2K | 13.1K | Jan 1993 – Jun 1994 |
| Middleton O-10-33973 | Extex Operating Company only | Nix (Clearfork) | Andrews | 1 | 11.9K | 15K | Oct 1993 – Jul 2002 |
| Middleton Farm O-8-29628 | Walsh Resources, Inc. only | Taylor County Regular | Taylor | 1 | 11.6K | 743 | Sep 2005 – Oct 2018 |
| Middleton, A.D. a/C #1 O-3-22293 | Texas Petroleum Investment Co. only | Anahuac (FB-1 South, Frio 13) | Chambers | 1 | 10.9K | 22.3K | Dec 1993 – Feb 1995 |
| Wright, Gilbert G. Est. O-10-33697 | Southwest Royalties, Inc. only | Middleton (Canyon Reef) | Howard | 1 | 10.4K | 11.2K | Jan 1993 – Apr 1998 |
| SE Ackerly O-10-36918 | Sharp Image Energy, Inc. only | Middleton (Canyon Reef) | Howard | 1 | 9.83K | 4.62K | Jul 2002 – Jun 2004 |
| Middleton "35" O-10-39859 | SMC Oil & Gas, Inc. only | Spraberry (Trend Area) | Howard | 1 | 8.95K | 7.21K | Apr 2010 – Jul 2023 |
| Middleton Petroleum A O-1-14219 | Burnett Oil Co., Inc. only | Taylor-Ina | Medina | 48 | 6.96K | 0 | Oct 1998 – Apr 2026 |
| Middleton O-11-62896 | MJB Production Company, Inc. only | Duffy Peak (Glorieta) | Garza | 1 | 6.22K | 134 | Jan 1993 – Oct 2022 |
| Middleton O-11-69980 | Rogers, S. K. Oil, Inc. only | Ownby, West (San Andres) | Yoakum | 1 | 5.38K | 0 | Aug 2012 – Apr 2019 |
| Adams 38 O-10-35196 | Cobra Oil & Gas Corporation only | Middleton (Canyon Reef) | Martin | 1 | 4.02K | 4.58K | Jan 1997 – Apr 1997 |