| Fazzino Unit O-3-20993 | Giddings (Austin Chalk-3) | Brazos | 1 | 157K | 464K | Jan 1993 – Jul 2026 |
| Noah Unit O-3-17496 | Giddings (Austin Chalk-3) | Brazos | 1 | 140K | 456K | Jan 1993 – Jul 2026 |
| Scamardo, P.J. O-3-22837 | Giddings (Austin Chalk-3) | Burleson | 1 | 102K | 622K | Sep 1995 – Jul 2026 |
| Maresh LT O-3-26641 | Giddings (Austin Chalk-3) | Burleson | 1 | 84.2K | 0 | Nov 2013 – Jul 2026 |
| Dix Unit O-3-23926 | Giddings (Buda) | Brazos | 1 | 70.5K | 669K | Dec 2000 – Jul 2026 |
| Walsh-Englemann Unit O-3-13091 | Caldwell (Austin Chalk) | Burleson | 1 | 48.6K | 201K | Jan 1993 – Jul 2026 |
| Ellisor Ranch O-3-17771 | Giddings (Austin Chalk-3) | Fayette | 1 | 41.2K | 217K | Jan 1993 – Jul 2026 |
| Victorick O-3-25626 | Giddings (Buda) | Burleson | 1 | 39.5K | 9.57K | Sep 2010 – Jul 2026 |
| Krueger Unit O-3-13970 | Caldwell (Austin Chalk) | Burleson | 1 | 37.5K | 60.7K | Jan 1993 – Jul 2026 |
| Walsh O-3-13427 | Caldwell (Austin Chalk) | Burleson | 1 | 31.9K | 207K | Jan 1993 – Jul 2026 |
| Howard-Tyler Unit O-3-12999 | Caldwell (Austin Chalk) | Burleson | 1 | 31.7K | 112K | Jan 1993 – Jul 2026 |
| Callas, J.P. O-3-14445 | Caldwell (Austin Chalk) | Burleson | 1 | 29.4K | 90.8K | Jan 1993 – Jul 2026 |
| Elsik-Sebesta Unit O-3-22294 | Giddings (Austin Chalk-3) | Burleson | 1 | 26.7K | 394K | Dec 1993 – Jul 2026 |
| Pinter O-3-13530 | Tunis, East (Austin Chalk) | Burleson | 1 | 25.2K | 115K | Jan 1993 – Jul 2026 |
| Wade Unit O-3-17399 | Caldwell (Austin Chalk) | Burleson | 1 | 25.2K | 89K | Jan 1993 – Jul 2026 |
| Porter, Holland -A- O-3-14307 | Caldwell (Austin Chalk) | Burleson | 1 | 24.6K | 103K | Jan 1993 – Jul 2026 |
| Patterson "C" O-3-13663 | Stone City (Austin Chalk) | Burleson | 1 | 23.7K | 74.6K | Jan 1993 – Jul 2026 |
| Curtis Unit O-3-18263 | Giddings (Austin Chalk-3) | Burleson | 2 | 23.2K | 11.1K | Jan 1993 – Jul 2026 |
| Teague-Rodgers Unit O-3-13874 | Caldwell (Austin Chalk) | Burleson | 1 | 22.3K | 183 | Jan 1993 – Jul 2026 |
| Chmelar, George "A" O-3-19430 | Giddings (Austin Chalk-3) | Burleson | 1 | 22.1K | 97.2K | Jan 1993 – Jul 2026 |
| Calvin, T.L. O-3-14356 | Giddings (Austin Chalk-3) | Burleson | 3 | 22.1K | 151K | Jan 1993 – Jul 2026 |
| Smith O-3-14870 | Caldwell (Austin Chalk) | Burleson | 1 | 21.5K | 153K | Jan 1993 – Jul 2026 |
| Tatum-Tatum Unit O-3-20822 | Giddings (Austin Chalk-3) | Burleson | 1 | 19.8K | 233K | Jan 1993 – Jul 2026 |
| Plemper-Walsh Unit O-3-12553 | Caldwell (Austin Chalk) | Burleson | 1 | 19K | 106K | Jan 1993 – Jul 2026 |
| Cook, L.D. O-3-16273 | Giddings (Austin Chalk-3) | Burleson | 1 | 18.1K | 255 | Jan 1993 – Jul 2026 |
| Jerkins O-3-14237 | Caldwell (Austin Chalk) | Burleson | 1 | 16.3K | 47.2K | Jan 1993 – Jul 2026 |
| Gold Pertl #1 O-3-23524 | Caldwell (Austin Chalk) | Burleson | 1 | 14.9K | 215K | Sep 1997 – Jul 2026 |
| Hein, Alvin O-3-12723 | Caldwell (Austin Chalk) | Burleson | 3 | 14.4K | 122K | Jan 1993 – Jul 2026 |
| Kostelka O-3-15816 | Giddings (Austin Chalk-3) | Burleson | 2 | 13.8K | 3.76K | Jan 1993 – Jul 2026 |
| Chmelar, Lenora O-3-17463 | Caldwell (Austin Chalk) | Burleson | 2 | 13.3K | 99.6K | Jan 1993 – Jul 2026 |
| Machan, Robert and Machan, O-3-21052 | Giddings (Austin Chalk-3) | Burleson | 1 | 12.2K | 196 | Jan 1993 – Jul 2026 |
| Hein, Leo O-3-16332 | Giddings (Austin Chalk-3) | Burleson | 1 | 11.8K | 69.8K | Jan 1993 – Jul 2026 |
| Skopik, D. M. O-3-13226 | Giddings (Austin Chalk-3) | Burleson | 1 | 11.4K | 106K | Jan 1993 – Jul 2026 |
| Tom Unit O-3-14522 | Giddings (Austin Chalk-3) | Burleson | 2 | 9.32K | 275 | Jan 1993 – Jul 2026 |
| Teague-Haddox Robbins Unit O-3-14175 | Caldwell (Austin Chalk) | Burleson | 1 | 5.37K | 179 | Jan 1993 – Jul 2026 |
| Pecan Valley O-3-25017 | Giddings (Buda) | Burleson | 1 | 5.32K | 10.9K | Aug 2007 – Jul 2026 |
| Kate Unit O-3-15170 | Giddings (Austin Chalk-3) | Burleson | 1 | 5.13K | 33.4K | Jan 1993 – Jul 2026 |
| Luck O-3-16791 | Giddings (Austin Chalk-3) | Fayette | 1 | 4.59K | 14.2K | Jan 1993 – Jul 2026 |
| Frankie #2 O-3-20516 | Caldwell (Austin Chalk) | Burleson | 1 | 2.28K | 3.67K | Jan 1993 – Jul 2026 |
| Rauch Unit G-3-214791 | Giddings (Austin Chalk, Gas) | Fayette | 1 | 0 | 102K | Feb 2006 – Jul 2026 |
| Frankie G-3-170127 | Giddings (Austin Chalk, Gas) | Burleson | 1 | 0 | 215K | Sep 1998 – Jul 2026 |
| Waltman G-3-232226 | Giddings (Buda) | Brazos | 1 | 0 | 34.7K | Sep 2007 – Jul 2026 |
| Suzanne Unit O-3-16574 | Giddings (Austin Chalk-3) | — | 0 | 72 | 2.45K | Jan 1993 – Mar 2008 |
| Lindy "I" O-3-17361 | Melinda (Wilcox B) | Washington | 1 | 3.27K | 5.45K | Jan 1993 – Oct 2007 |