| Fox Creek O-1-15332 | Ineos USA Oil & Gas LLC only | Eagleville (Eagle Ford-1) | McMullen | 6 | 1.24M | 731K | Dec 2010 – Jul 2026 |
| Fox Unit O-2-9546 | Devon Energy Production Co, L.P. only | Eagleville (Eagle Ford-2) | Karnes | 6 | 935K | 1M | Dec 2010 – Jul 2026 |
| Fox Creek Ranch Unit A O-1-15413 | Gulftex Energy, LLC only | Eagleville (Eagle Ford-1) | McMullen | 5 | 716K | 817K | Dec 2010 – Jul 2026 |
| Akin-Foxfire Unit O-3-22405 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk-3) | Brazos | 1 | 526K | 3.6M | Apr 1994 – Apr 2015 |
| Foxtrot NS 30-31 02 O-10-50592 | Hannathon Petroleum II, LLC only | Spraberry (Trend Area) | Glasscock | 2 | 352K | 3.05M | Mar 2018 – Jul 2026 |
| Foxtrot NS 30-31 01 O-10-50578 | Hannathon Petroleum II, LLC only | Spraberry (Trend Area) | Glasscock | 2 | 351K | 2.9M | Mar 2018 – Jul 2026 |
| Fox EF Unit O-3-27592 | Wildfire Energy Operating LLC only | Giddings (Eagleford) | Burleson | 1 | 313K | 32.9K | Nov 2018 – Jul 2026 |
| Fox E 170-144 UB O-9-22254 | RP Operating, L.L.C. only | Spraberry (Trend Area) | Reagan | 1 | 255K | 769K | Sep 2023 – Jul 2026 |
| Greenfox /Pettit B/ Unit O-6-5264 | RFE Operating, LLC only | Green Fox (Pettit) | Marion | 15 | 247K | 585K | Jan 1993 – Jul 2026 |
| Fox C 170-144 UB O-9-22253 | RP Operating, L.L.C. only | Spraberry (Trend Area) | Reagan | 1 | 237K | 733K | Sep 2023 – Jul 2026 |
| Foxtrot NS 30-31 05 O-10-49855 | Hannathon Petroleum II, LLC only | Spraberry (Trend Area) | Glasscock | 1 | 236K | 1.37M | Nov 2017 – Jul 2026 |
| Foxfire Unit EB O-3-26610 | Wildfire Energy Operating LLC only | Madisonville, W. (Woodbine -A-) | Brazos | 2 | 234K | 131K | Jan 2015 – Jul 2026 |
| Fox Dr 170-144 LB O-9-22244 | RP Operating, L.L.C. only | Spraberry (Trend Area) | Reagan | 1 | 230K | 720K | Sep 2023 – Jul 2026 |
| Fox a 170-144 UB O-9-22307 | RP Operating, L.L.C. only | Spraberry (Trend Area) | Reagan | 1 | 229K | 557K | Sep 2023 – Jul 2026 |
| Fox - Stoeltje B O-2-12565 | Devon Energy Production Co, L.P. only | Eagleville (Eagle Ford-2) | Karnes | 1 | 218K | 152K | Feb 2023 – Jul 2026 |
| Fox - Stoeltje A O-2-12587 | Devon Energy Production Co, L.P. only | Eagleville (Eagle Ford-2) | Karnes | 1 | 214K | 159K | Mar 2023 – Jul 2026 |
| Fox Edwards HC1 O-1-21309 | Ineos USA Oil & Gas LLC only | Eagleville (Eagle Ford-1) | McMullen | 1 | 205K | 145K | Oct 2023 – Jul 2026 |
| Fox B 170-144 LB O-9-22252 | RP Operating, L.L.C. only | Spraberry (Trend Area) | Reagan | 1 | 198K | 652K | Sep 2023 – Jul 2026 |
| Fox Creek Unit G O-1-15890 | Ineos USA Oil & Gas LLC only | Eagleville (Eagle Ford-1) | McMullen | 1 | 186K | 140K | Feb 2012 – Jul 2026 |
| Foxtrot O-10-53288 | Extex Operating Company only | Garden City, S. (Wolfcamp) | Nolan | 1 | 169K | 372K | Nov 2019 – Jul 2026 |
| Foxtrot O-10-56954 | Strawn Petroleum Operating, LLC only | Garden City, S. (Wolfcamp) | Scurry | 1 | 163K | 526K | Jan 2022 – Jul 2026 |
| Foxtrot NS 30-31 O-10-50629 | Hannathon Petroleum II, LLC only | Spraberry (Trend Area) | Glasscock | 1 | 154K | 868K | Mar 2018 – Jul 2026 |
| Foxx O-14-468 | Borger Resources 2 LLC only | Panhandle Gray County Field | Gray | 11 | 150K | 598K | Jan 1993 – Jul 2026 |
| Miguelita Scanio O-2-8991 | Digital Operating Company LLC only | Refugio-Fox (6400) | Refugio | 1 | 143K | 144K | Aug 2005 – Jul 2026 |
| Fox-Fitch (SA) A O-2-12673 | Devon Energy Production Co, L.P. only | Eagleville (Eagle Ford-2) | Karnes | 1 | 122K | 54.7K | Aug 2023 – Jul 2026 |
| Shelton, Ben O-2-8558 | Digital Operating Company LLC only | Refugio-Fox (6400) | Refugio | 1 | 112K | 105K | Aug 2000 – Jul 2026 |
| Fox Unit O-3-11747 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 2 | 110K | 793K | Jan 1993 – Jul 2026 |
| Miller "B" O-4-12185 | Silver Fox Oil & Gas LLC only | Riverside, East (6200) | Nueces | 2 | 107K | 180K | Apr 1993 – Jul 2026 |
| Scanio, Miguelita O-2-8611 | Digital Operating Company LLC only | Refugio-Fox (6500) | Refugio | 1 | 101K | 199K | Apr 2001 – Jul 2026 |
| Fox O-11-69969 | Seaboard Operating Co. only | Smyer, SE. (Clear Fork) | Lubbock | 2 | 98.2K | 0 | Oct 2012 – Jul 2026 |
| Gallant Fox Unit O-3-27567 | EOG Resources, Inc. only | Southern Bay (Eagle Ford) | Lee | 1 | 95.9K | 49.1K | Nov 2018 – Jul 2026 |
| Cowherd O-6-14038 | Fair Oil, Ltd. only | Green Fox (Page) | Marion | 1 | 93.7K | 77.3K | Jul 2000 – Jul 2026 |
| Evans, Allred Heirs O-13-19919 | Buffco Production Inc. only | Fox (Chappell Dolo) | Hardeman | 3 | 91.9K | 61.4K | Jan 1993 – Jul 2026 |
| Miguelita Scanio O-2-9060 | Acock/Anaqua Operating Co., LP only | Refugio-Fox (6750) | Refugio | 2 | 89.3K | 142K | Jun 2006 – Sep 2013 |
| Fox O-3-25229 | Trans-Tex Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 1 | 77.1K | 276K | Jun 2008 – Jul 2026 |
| Fox O-2-12384 | Tidal Petroleum, Inc. only | Sugarkane (Austin Chalk) | Karnes | 2 | 73.3K | 65.3K | Apr 2022 – Jul 2026 |
| Pool, G. C. O-5-3529 | Ellis Exploration, Inc. only | Ham Fox (Rodessa) | Henderson | 1 | 67K | 261K | Aug 1996 – Jul 2026 |
| W. J. Fox 'A' O-2-10474 | Hilcorp Energy Company only | Hynes Ranch (F- 6) | Refugio | 1 | 59.3K | 251K | Jul 2012 – Jul 2026 |
| Miguelita Scanio O-2-9399 | Digital Operating Company LLC only | Refugio-Fox (6850) | Refugio | 1 | 55.5K | 94K | Feb 2010 – Jul 2026 |
| Fox O-8-28970 | Golden Oil and Ranch, LLC only | Estaban (Strawn Reef) | Nolan | 2 | 54.5K | 88.5K | May 2001 – Jul 2026 |
| Miguelita Scanio O-2-9074 | Digital Operating Company LLC only | Refugio-Fox (6500) | Refugio | 1 | 54.3K | 68.7K | Oct 2006 – Jul 2026 |
| Green Fox /Smith Zone/ Unit O-6-5443 | RFE Operating, LLC only | Green Fox (Smith) | Marion | 6 | 51.6K | 223K | Jan 1993 – Jul 2026 |
| Foxtrot 31 O-10-45196 | Apache Corporation only | Spraberry (Trend Area) | Glasscock | 1 | 49.2K | 605K | Dec 2013 – Jul 2026 |
| Guaranty Title & Trust Co. Unit O-4-9778 | Fox, Hewitt B., Inc. only | Saxet, Deep (6200) | Nueces | 1 | 46.9K | 20 | Jan 1993 – Jul 2026 |
| Roche O-5-3197 | Southwest Operating, Inc.-Tyler only | Ham Fox (Rodessa) | Henderson | 1 | 44.9K | 6.13K | Jan 1993 – Jul 2026 |
| Scanio, Miguelita O-2-8889 | Digital Operating Company LLC only | Refugio-Fox (6400) | Refugio | 3 | 44.1K | 437K | Jun 2004 – Jul 2026 |
| Fox, J. H. O-13-2576 | Felderhoff Production Company only | Woodbine | — | 1 | 43.7K | 21 | Jan 1993 – Jul 2026 |
| Miguelita Scanio O-2-10904 | Acock/Anaqua Operating Co., LP only | Refugio-Fox (6550) | Refugio | 1 | 42.7K | 35.9K | Feb 2014 – Jul 2021 |
| Fox, W. J. O-2-7887 | Hilcorp Energy Company only | Refugio-Fox (5850) | Refugio | 1 | 42K | 34.2K | Jun 1993 – Mar 2008 |
| Hooper, E. S. O-6-13397 | King Operating Corporation only | Green Fox, E. (Pettit Lower -B-) | Marion | 1 | 38.6K | 25.6K | Jan 1995 – Jul 2026 |