| Snell, Gayle O-3-22474 | Giddings (Austin Chalk-3) | Fayette | 1 | 368K | 412K | May 1994 – Jul 2026 |
| Durrenberger Unit O-3-22699 | Giddings (Austin Chalk-3) | Lee | 1 | 367K | 1.09M | Mar 1995 – Jul 2026 |
| Rightmer-Seale Unit O-3-22525 | Giddings (Austin Chalk-3) | Fayette | 1 | 367K | 364K | Sep 1994 – Jul 2026 |
| Lindbergh-O.L. Unit O-3-22208 | Giddings (Austin Chalk-3) | Fayette | 1 | 325K | 641K | Sep 1993 – Jul 2026 |
| Svec OL Unit O-3-22104 | Giddings (Austin Chalk-3) | Fayette | 4 | 319K | 1.46M | Jul 1993 – Jul 2026 |
| Taylor-Brown Unit O-3-22180 | Giddings (Austin Chalk-3) | Fayette | 2 | 310K | 1.4M | Aug 1993 – Jul 2026 |
| Niemeyer Oil Unit O-3-21805 | Giddings (Austin Chalk-3) | Fayette | 1 | 303K | 3.1M | Jan 1993 – Jul 2026 |
| Robbins OL Unit O-3-22012 | Giddings (Austin Chalk-3) | Fayette | 1 | 253K | 2.47M | Apr 1993 – Jul 2026 |
| Willmann OL Unit O-3-20179 | Giddings (Austin Chalk-3) | Fayette | 1 | 250K | 931K | Jan 1993 – Jul 2026 |
| Crawford OL Unit O-3-22116 | Giddings (Austin Chalk-3) | Fayette | 1 | 243K | 546K | Jul 1993 – Jul 2026 |
| Scott Morgan Oil Unit O-3-21629 | Giddings (Austin Chalk-3) | Fayette | 1 | 206K | 1.35M | Jan 1993 – Jul 2026 |
| Italian Stallion OL Unit O-3-22409 | Giddings (Austin Chalk-3) | Fayette | 1 | 203K | 961K | Feb 1994 – Jul 2026 |
| Srubar Oil Unit O-3-21923 | Giddings (Austin Chalk-3) | Fayette | 2 | 202K | 852K | Feb 1993 – Jul 2026 |
| Koehler Unit O-3-13802 | Giddings (Austin Chalk-3) | Lee | 2 | 201K | 508K | Jan 1993 – Jul 2026 |
| Chief Unit O-3-23070 | Giddings (Austin Chalk-3) | Fayette | 1 | 193K | 430K | Sep 1996 – Jul 2026 |
| Morgan, Clay O-3-21375 | Giddings (Austin Chalk-3) | Fayette | 1 | 186K | 1.1M | Jan 1993 – Jul 2026 |
| Machala-Kovar Unit O-3-22091 | Giddings (Austin Chalk-3) | Fayette | 1 | 167K | 274K | May 1993 – Jul 2026 |
| Townsite O-3-22470 | Giddings (Austin Chalk-3) | Fayette | 1 | 164K | 1.43M | May 1994 – Jul 2026 |
| Brahman O-5-4110 | Aguila Vado (Eagleford) | Brazos | 1 | 164K | 123K | Mar 2014 – Jul 2026 |
| Wildner O-3-22127 | Giddings (Austin Chalk-3) | Fayette | 1 | 162K | 1.01M | Jun 1993 – Jul 2026 |
| Brothers Oil Unit O-3-22207 | Giddings (Austin Chalk-3) | Fayette | 1 | 162K | 1.79M | Nov 1993 – Jul 2026 |
| Gaulke Oil Unit O-3-21764 | Giddings (Austin Chalk-3) | Fayette | 2 | 159K | 1.15M | Jan 1993 – Jul 2026 |
| Morgan-Morgan Unit O-3-21565 | Giddings (Austin Chalk-3) | Fayette | 1 | 153K | 442K | Jan 1993 – Jul 2026 |
| Hrbacek-Hrbacek Unit O-3-21743 | Giddings (Austin Chalk-3) | Fayette | 1 | 150K | 643K | Jan 1993 – Jul 2026 |
| Pecan Creek O-3-22641 | Giddings (Austin Chalk-3) | Fayette | 2 | 145K | 1.46M | Jan 1995 – Jul 2026 |
| Scanlan OL Unit O-3-21989 | Giddings (Austin Chalk-3) | Fayette | 1 | 139K | 601K | Mar 1993 – Jul 2026 |
| Elizabeth-Taylor Unit O-3-20277 | Giddings (Austin Chalk-3) | Fayette | 1 | 135K | 2.29M | Jan 1993 – Jul 2026 |
| High Hill Creek Unit O-3-22058 | Giddings (Austin Chalk-3) | Fayette | 2 | 133K | 610K | Apr 1993 – Jul 2026 |
| Bates, Garth No. 2RE Unit O-3-23379 | Giddings (Austin Chalk-3) | Fayette | 1 | 126K | 211K | Sep 1997 – Jul 2026 |
| Peggy Unit O-3-18077 | Giddings (Austin Chalk-3) | Fayette | 2 | 125K | 512K | Jan 1993 – Jul 2026 |
| Cliffhanger OL Unit O-3-22456 | Giddings (Austin Chalk-3) | Fayette | 2 | 122K | 656K | Apr 1994 – Jul 2026 |
| Havemann Unit O-3-21921 | Giddings (Austin Chalk-3) | Fayette | 2 | 119K | 505K | Feb 1993 – Jul 2026 |
| Hoover Unit O-3-22566 | Giddings (Austin Chalk-3) | Fayette | 1 | 114K | 962K | Oct 1994 – Jul 2026 |
| Kallus OL Unit O-3-22239 | Giddings (Austin Chalk-3) | Fayette | 1 | 113K | 185K | Dec 1993 – Jul 2026 |
| Geraint-AC-1 O-3-27859 | Giddings (Austin Chalk-3) | Fayette | 1 | 106K | 232K | Dec 2020 – Jul 2026 |
| Schweinle Oil Unit O-3-21857 | Giddings (Austin Chalk-3) | Fayette | 1 | 102K | 422K | Jan 1993 – Jul 2026 |
| Belota-Karisch Unit O-3-21341 | Giddings (Austin Chalk-3) | Fayette | 1 | 99.8K | 663K | Jan 1993 – Jul 2026 |
| Ransom "B" #1 O-3-16682 | Kurten (Buda) | Brazos | 2 | 97.3K | 18 | Jan 1993 – Jul 2026 |
| Lagrange Townsite O-3-22550 | Giddings (Austin Chalk-3) | Fayette | 2 | 95.4K | 646K | Sep 1994 – Jul 2026 |
| Lampe-McAfee Unit O-3-21378 | Giddings (Austin Chalk-3) | Fayette | 1 | 90K | 1.27M | Jan 1993 – Jul 2026 |
| Hausmann O-3-22253 | Giddings (Austin Chalk-3) | Fayette | 1 | 87.3K | 185K | Nov 1993 – Jul 2026 |
| Roitsch Oil Unit O-3-22051 | Giddings (Austin Chalk-3) | Fayette | 2 | 87.1K | 809K | May 1993 – Jul 2026 |
| Stringfellow Unit O-3-17760 | Kurten (Buda) | Brazos | 2 | 86.1K | 12 | Jan 1993 – Jul 2026 |
| Townsite Unit O-3-23177 | Giddings (Austin Chalk-3) | Fayette | 1 | 83.9K | 1.17M | Nov 1996 – Jul 2026 |
| Becker, Fred O-3-14613 | Giddings (Austin Chalk-3) | Lee | 3 | 69.9K | 21 | Jan 1993 – Jul 2026 |
| R. Kehlenbrink Unit O-3-26797 | Kurten (Buda) | Brazos | 1 | 67.6K | 181K | Oct 2014 – Jul 2026 |
| Machala-Dopslauf Unit O-3-21988 | Giddings (Austin Chalk-3) | Fayette | 1 | 67.4K | 372K | Mar 1993 – Jul 2026 |
| Elias, Victor O-3-14103 | Giddings (Austin Chalk-3) | Fayette | 2 | 67.1K | 30.8K | Jan 1993 – Jul 2026 |
| Brooks O-3-22848 | Giddings (Austin Chalk-3) | Fayette | 1 | 66.9K | 126K | Apr 1995 – Jul 2026 |
| Scholtz-Amarado Unit O-3-22648 | Giddings (Austin Chalk-3) | Fayette | 1 | 66.7K | 410K | Nov 1994 – Jul 2026 |