| Foster Unit #1 & 2 O-6-228 | Glori Energy Holdings Inc. only | Coke | Wood | 2 | 2.29M | 334K | Jan 1993 – Aug 2015 |
| Maurbro Field /Marg./ Unit #1 O-2-4778 | KD Energy, LLC only | Maurbro | Jackson | 52 | 1.81M | 1.67M | Jan 1993 – Apr 2026 |
| Waterflood Unit #1 O-3-8909 | Enhanced Energy Partners Corp only | Raccoon Bend (Jackson) | Austin | 77 | 1.6M | 242K | Jan 1993 – Apr 2026 |
| Fitzgerald, L. E. Unit #1 O-3-191 | Sandpoint Texas LLC only | Barbers Hill | Chambers | 10 | 694K | 61 | Jan 1993 – Apr 2026 |
| Frost, Berry et al Unit #1 O-6-12014 | Sulphur River Exploration, Inc. only | Frost (Smackover) | Cass | 1 | 596K | 353K | Jan 1993 – Apr 2026 |
| Bethany NE. Waterflood Unit #1 O-6-4941 | Hopewell Operating, Inc. only | Bethany, NE. (Lime 3850) | Panola | 41 | 504K | 102K | Jan 1993 – Jan 2026 |
| Fishers Reef Field Unit #1 O-3-6384 | Galveston Bay Operating Co LLC only | Fishers Reef | Chambers | 6 | 300K | 768K | Jan 1993 – Jun 2021 |
| Trinity Bay State Unit #1 O-3-16366 | Galveston Bay Operating Co LLC only | Trinity Bay, West (Frio 7) | Chambers | 8 | 287K | 289K | Jan 1993 – Oct 2018 |
| Rayburn Unit #12 O-6-13603 | Radius Operating, LLC only | Brookeland (Austin Chalk, 8800) | Angelina | 1 | 286K | 485K | Nov 1996 – Aug 2012 |
| Hoeldtke-Zetzsche Unit #1 O-13-27054 | Ingram, J. Oil & Gas, Inc. only | Bowie (Viola Limestone) | Montague | 5 | 274K | 655K | Jan 1993 – Apr 2026 |
| Brushy Creek Unit #1 O-6-14173 | Linder, John Operating Co., LLC only | Purt, West (Rodessa 11,500) | Anderson | 1 | 243K | 206K | Jan 2002 – Apr 2026 |
| Hitchcock "a" Unit #1 O-3-18515 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 2 | 228K | 1.2M | Jan 1993 – Apr 2026 |
| Huffman Unit #1RE O-1-13065 | Crescent Energy Operating, LLC only | Pearsall (Austin Chalk) | Dimmit | 2 | 217K | 187K | Jan 1993 – Apr 2026 |
| Thompson-Provazek Unit #1-H O-3-15638 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 2 | 197K | 702K | Jan 1993 – Apr 2026 |
| Imn-Irvin Unit #1 O-1-21198 | XTO Energy Inc. only | Eagleville (Eagle Ford-1) | La Salle | 1 | 196K | 214K | Mar 2024 – Apr 2026 |
| Tomball Gas Unit #18 O-3-23647 | Galloway Lone Star, L.L.C. only | Tomball (Kobs) | Harris | 1 | 190K | 611K | Mar 1999 – Apr 2026 |
| Toombs-Feagins Unit #1 O-8-28881 | HGN Operating I, LLC only | Jones County Regular | Jones | 1 | 174K | 1.96K | Oct 2000 – Apr 2026 |
| McDuffie Unit #1 O-3-22148 | CML Exploration, LLC only | Iola (Georgetown) | Grimes | 1 | 129K | 368K | May 1993 – Apr 2026 |
| Sugarberry-Black St.oil Unit #1 O-3-25589 | Neches Transport Inc. only | Shoal Creek, North (Gracen Sand) | Tyler | 1 | 128K | 283K | Jun 2010 – Apr 2026 |
| Allen Oil Unit #1 O-2-7121 | Capital Star Oil & Gas, Inc. only | Hallettsville (Burns 9600) | Lavaca | 1 | 115K | 365K | Jan 1993 – Aug 2025 |
| Mayo, Joe Unit #1 O-13-21222 | Cobra Oil & Gas Corporation only | Joy, N.W. (Marble Falls) | Clay | 1 | 99.2K | 37.7K | Jan 1993 – Apr 2026 |
| Cochran Oil Unit #1 O-3-17178 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 1 | 98.6K | 222K | Jan 1993 – Oct 2018 |
| Quitman Waterflood Unit #1 O-6-5445 | Atlas Operating LLC only | Quitman (Eagle Ford) | Wood | 9 | 96.3K | 5.53K | Jan 1993 – Mar 2026 |
| Rayburn Unit #11 O-6-13595 | Radius Operating, LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 93.4K | 438K | Aug 1996 – Sep 2012 |
| Hankamer,i. J., Etal Oil Unit #1 O-3-1882 | Home Petroleum Corp. only | Hankamer, South | Chambers | 2 | 92.8K | 357K | Feb 1993 – Feb 2026 |
| Crump-Lucas Unit #1 O-13-30167 | EOG Resources, Inc. only | St. JO Ridge (Barnett Shale) | Montague | 1 | 85.6K | 461K | May 2003 – Feb 2017 |
| North Wilton /Strawn/ Unit #1 O-13-14369 | B.O.L.D. Oil and Gas, LLC only | Wilton, North (Strawn) | Young | 5 | 79.9K | 373 | Jan 1993 – Apr 2026 |
| Raccoon Bend Miocene Unit #1 O-3-17063 | Enhanced Energy Partners Corp only | Raccoon Bend (Miocene Z) | Austin | 1 | 76.8K | 8.17K | Jan 1993 – Dec 2020 |
| Moore, C. A. Unit #1 O-11-66586 | Walking X Oil Co. only | Mry (Fusselman) | Cochran | 2 | 69.1K | 19.2K | Jan 1993 – Mar 2016 |
| Lucas Unit #1 O-13-30494 | EOG Resources, Inc. only | St. JO Ridge (Barnett Shale) | Montague | 1 | 67.5K | 670K | Aug 2005 – Jan 2022 |
| Brower, G. L., Oil Unit #1 O-5-2022 | Linder, John Operating Co., LLC only | Tundra (Bacon Lime) | Van Zandt | 1 | 58.4K | 21 | Jan 1993 – Apr 2026 |
| Daws, Carmack Unit #1 O-13-22751 | Cooper Oil & Gas, LLC only | Jack's (Mississippian) | Young | 2 | 48.7K | 7.12K | Jan 1993 – Aug 2025 |
| Lubel Unit #1 O-1-12132 | Petro-Tex Energy & Expl.co.,inc. only | Somerset | Bexar | 8 | 47.9K | 25 | Jan 1993 – Jan 2018 |
| Tomball Lewis Oil Unit #1 O-3-16930 | Tandem Energy Corporation only | Tomball (Lewis 5930) | Harris | 2 | 47K | 134K | Jan 1993 – Mar 2021 |
| Quitman Waterflood Unit #1 O-6-5446 | Atlas Operating LLC only | Quitman (Sub-Clarksville) | Wood | 6 | 46.9K | 1.94K | Jan 1993 – Mar 2026 |
| Smith, John-Frost Unit #1 O-6-99 | TGNR East Texas LLC only | Carthage | Panola | 3 | 42.9K | 692K | Jan 1993 – Apr 2026 |
| Bailes-Parmenter-Jones Unit #1A O-8-28153 | S.B. Street Operating, Inc. only | Bailes | Throckmorton | 1 | 38.1K | 28.1K | May 1997 – Apr 2026 |
| Wolf Unit #1 O-3-24538 | Kirkpatrick, John Oil LLC only | Lucky, West ( F- 9) | Matagorda | 1 | 37.7K | 12.4K | Apr 2004 – Jun 2018 |
| Blue Sky Unit #1 O-13-33945 | Texcel Exploration, Inc. only | Southmayd, North (Baker-Viola) | Grayson | 1 | 37.4K | 74.1K | Jul 2019 – Apr 2026 |
| Dorward Oil Unit #14 O-11-60938 | Unitex Oil & Gas, L.L.C. only | Dorward | Garza | 1 | 35.2K | 4.69K | Jan 1993 – Apr 2026 |
| Lynn Horton Oil Unit #1 O-6-14052 | Geo-Vest of Texas, Inc. only | Danville (Travis Peak Cons.) | Gregg | 1 | 34.9K | 341K | Nov 2000 – Jan 2008 |
| Tomball Petrich Sd. Oil Unit #1 O-3-8775 | Tandem Energy Corporation only | Tomball (Petrich) | Harris | 1 | 33.6K | 82.8K | Jan 1993 – Jul 2003 |
| Bell Oil Unit #1 O-6-13879 | Geo-Vest of Texas, Inc. only | Danville (Travis Peak Cons.) | Gregg | 1 | 33.2K | 72.6K | Feb 1999 – Jan 2008 |
| Dorward Oil Unit #13 O-11-60937 | Endeavor Energy Resources L.P. only | Dorward | Garza | 1 | 31.2K | 6.91K | Jan 1993 – Aug 2015 |
| Dorward Oil Unit #1 O-11-10726 | Unitex Oil & Gas, L.L.C. only | Dorward | Garza | 1 | 30.6K | 11.2K | Jan 1993 – Apr 2026 |
| Wolf Unit #1 O-3-24126 | Lindenmuth & Associates, Inc. only | Lucky, W. ( No. 30 Sd.) | Matagorda | 1 | 29.8K | 151K | Dec 2001 – May 2003 |
| Dorward Oil Unit #15 O-11-61056 | Unitex Oil & Gas, L.L.C. only | Dorward | Garza | 1 | 27.7K | 6K | Jan 1993 – Apr 2026 |
| Orchard Oil Unit #11 O/A O-3-11487 | Doggy Oil Corp only | Algoa Orchard (8900) | Galveston | 2 | 27.6K | 23 | Jan 1993 – Apr 2000 |
| Dorward Oil Unit #16 O-11-61055 | Unitex Oil & Gas, L.L.C. only | Dorward | Garza | 1 | 24.2K | 4.91K | Jan 1993 – Apr 2026 |
| Cameron Lumber Company Unit #1 O-6-96 | Lacy Operations, Ltd. only | Carthage | Panola | 1 | 23.3K | 399K | Jan 1993 – Sep 2008 |