| 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 |
| Usx Hematite Unit #1 G-3-177684 | Carrizo Oil & Gas, Inc. only | Hematite Sand (Vicksburg) | Chambers | 1 | 192K | 6.39M | Nov 1999 – Dec 2005 |
| 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 |
| Taylor-Carrico Unit #1 G-1-297217 | Trinity Operating (Usg), LLC only | Briscoe Ranch (Eagleford) | Frio | 1 | 137K | 488K | Jan 2022 – 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 |
| Taylor-Carrico Unit #1 G-1-296950 | Trinity Operating (Usg), LLC only | Briscoe Ranch (Eagleford) | Frio | 1 | 116K | 519K | Jan 2022 – 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 |
| Sweeney Gas Unit #1 G-3-35629 | Daylight Petroleum LLC only | Milton, N. (13000) | Harris | 1 | 106K | 10.1M | Jan 1993 – Apr 2026 |
| 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 |
| Hamill Gas Unit #1 G-3-149628 | Petrotx Operating, LLC only | Milton, N. (13000) | Harris | 1 | 84.5K | 2.41M | Nov 1993 – Apr 2026 |
| Eagle Lake Gas Unit #1 G-3-279146 | Mag Exploration LLC only | Eagle Lake (Wilcox A-2) | Colorado | 1 | 81K | 2.18M | Jul 2015 – Feb 2020 |
| 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 |
| Durkee Gas Unit #1 G-6-17052 | T W Clemons Operating Co., LLC only | Woodlawn (Pettit) | Harrison | 1 | 78.6K | 661K | Aug 1994 – 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 |
| Graves Estate(wilcox)gas Unit #1 G-3-154137 | EOG Resources, Inc. only | Milton, N. (13000) | Harris | 1 | 73.1K | 2.12M | Oct 1994 – Aug 2003 |
| Hamill Gas Unit #1 G-3-39890 | Petrotx Operating, LLC only | Milton, N. (13000) | Harris | 1 | 72.5K | 1.89M | Jan 1993 – Apr 2026 |
| Durkee Gas Unit #1 G-6-227604 | T W Clemons Operating Co., LLC only | Woodlawn (Pettit) | Harrison | 1 | 70.5K | 452K | Feb 2007 – Apr 2026 |
| 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 |
| Pena Gas Unit #1 G-4-121046 | Bordertown Energy Resources, LLC only | Mestena Grande (Queen City Cons) | Jim Hogg | 1 | 68.4K | 4.1M | Jan 1993 – Dec 2023 |
| Briggs Ranch G Unit #1 G-1-272163 | Verdun Oil & Gas LLC only | Hawkville (Eagleford Shale) | La Salle | 1 | 68.2K | 617K | Mar 2014 – Sep 2025 |
| 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 |
| Lake Tejas Unit #1 G-3-281186 | Zarvona Energy LLC only | Magnolia Springs (Austin Chalk) | Tyler | 1 | 52.4K | 995K | Nov 2014 – Mar 2026 |
| Usx Hematite Unit #1 G-3-180387 | Carrizo Oil & Gas, Inc. only | Hematite Sand (Vicksburg) | Chambers | 1 | 48.8K | 830K | Sep 2000 – Jul 2003 |
| 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 |
| Graves Estate(wilcox)gas Unit #1 G-3-153354 | Cathexis Oil & Gas, LLC only | Milton, N. (9800 Wilcox) | Harris | 1 | 46.9K | 6.95M | Dec 1994 – Feb 2011 |
| Quitman Waterflood Unit #1 O-6-5446 | Atlas Operating LLC only | Quitman (Sub-Clarksville) | Wood | 6 | 46.9K | 1.94K | Jan 1993 – Mar 2026 |