| Champion Unit 1 O-6-13243 | Brookeland (Austin Chalk, 8800) | Newton | 1 | 274K | 1.34M | Sep 1993 – Jul 2026 |
| Fisher Unit A-522 O-6-13875 | Brookeland (Austin Chalk, 8800) | Jasper | 2 | 54.4K | 640K | Sep 1997 – Jul 2026 |
| Champion Int'l. Unit A-1175 O-6-13922 | Brookeland (Austin Chalk, 8800) | Newton | 1 | 52.2K | 286K | Jan 1999 – Jul 2026 |
| Donner-Brown Unit A-11 O-6-14533 | Brookeland (Austin Chalk, 8800) | Newton | 1 | 13.5K | 198K | Jun 2006 – Jul 2026 |
| Champion Int'l Unit A-143 O-6-13909 | Brookeland (Austin Chalk, 8800) | Newton | 1 | 10.5K | 68.1K | Mar 1999 – Jul 2026 |
| Texaco Fee Unit 5 O-6-13186 | Brookeland (Austin Chalk, 8800) | Newton | 2 | 76.8K | 751K | Jun 1993 – Oct 2025 |
| Stark Unit A-434 O-6-13908 | Brookeland (Austin Chalk, 8800) | Sabine | 1 | 34.4K | 257K | Mar 1999 – Oct 2025 |
| Champion Unit 1 G-6-202451 | Brookeland (Austin Chalk, 8800) | Newton | 1 | 0 | 13.4K | May 2004 – Oct 2025 |
| Champion International Unit A-20 G-6-148222 | Brookeland (Austin Chalk, 8800) | Newton | 1 | 0 | 828K | Dec 1993 – Oct 2025 |
| Arco Fee Unit A-312 G-6-156383 | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 0 | 2.94M | Apr 1995 – Oct 2025 |
| Donner-Brown Unit A-346 G-6-153371 | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 0 | 1.89M | Sep 1994 – Oct 2025 |
| Arco Fee A-246 G-6-181557 | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 0 | 101K | Nov 2000 – Mar 2025 |
| Donner "a" Unit G-6-148972 | Brookeland (Austin Chalk, 8800) | Newton | 1 | 0 | 3.73M | Nov 1993 – Mar 2024 |
| Champion Int'l Unit A-802 O-6-13424 | Brookeland (Austin Chalk, 8800) | Newton | 1 | 126K | 1.05M | Mar 1995 – Feb 2024 |
| Jones, C.S. Unit A-93 G-6-159092 | Brookeland (Austin Chalk, 8800) | Newton | 1 | 0 | 1.15M | Mar 1996 – Nov 2023 |
| Stark Unit A-298 O-6-13483 | Brookeland (Austin Chalk, 8800) | Sabine | 1 | 213K | 774K | Sep 1995 – Mar 2023 |
| Saul Unit A-33 G-6-169139 | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 0 | 2.78M | May 1998 – Jan 2023 |
| Donner-Brown Unit A-639 G-6-164865 | Brookeland (Austin Chalk, 8800) | Newton | 1 | 0 | 0 | Dec 1996 – Nov 2022 |
| Champion International Unit O-6-13900 | Brookeland (Austin Chalk, 8800) | Newton | 2 | 22.1K | 124K | Mar 1999 – Oct 2021 |