| A Mueller a-Koehler SW D O-2-11810 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | De Witt | 1 | 794K | 2.07M | May 2019 – Aug 2026 |
| A Mueller a-Koehler SW C O-2-11808 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | De Witt | 1 | 577K | 1.43M | May 2019 – Aug 2026 |
| A Mueller a-Koehler SW A O-2-11835 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | De Witt | 1 | 556K | 1.76M | May 2019 – Aug 2026 |
| A Mueller A-Koehler a Usw F O-2-12887 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | De Witt | 1 | 539K | 1.51M | Jun 2024 – Aug 2026 |
| Koehler Unit A O-2-10213 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | De Witt | 1 | 506K | 1.27M | Oct 2012 – Aug 2026 |
| A Mueller A-Koehler a Usw G O-2-12888 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | De Witt | 1 | 421K | 1.24M | Jun 2024 – Aug 2026 |
| A Mueller A-Koehler a Usw H O-2-12884 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | De Witt | 1 | 415K | 1.16M | Jun 2024 – Aug 2026 |
| A Mueller a-Koehler SW B O-2-11807 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | De Witt | 1 | 378K | 1.13M | May 2019 – Aug 2026 |
| A Mueller A-Koehler a Usw E O-2-12913 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | De Witt | 1 | 374K | 1.15M | Jun 2024 – Aug 2026 |
| Koehler, F. E. Fee NCT-1 O-3-2398 | Chevron U. S. A. Inc. only | Humble | Harris | 56 | 370K | 158K | by Jan 1993 – Jun 2018 |
| A Mueller a-Koehler SW O-2-11814 | Burlington Resources O & G Co LP only | Sugarkane (Austin Chalk) | De Witt | 1 | 277K | 979K | May 2019 – Aug 2026 |
| Koehler Unit O-3-13802 | Redbud E & P, Inc. only | Giddings (Austin Chalk-3) | Lee | 2 | 201K | 508K | by Jan 1993 – Aug 2026 |
| Koehler O-3-21227 | Akg Operating Company only | Giddings (Austin Chalk-3) | Burleson | 1 | 83.2K | 603K | by Jan 1993 – Oct 2025 |
| Brown, C. S. O-4-7832 | Sun Exploration, Inc. only | Charlie Brown (Koehler, 2ND) | San Patricio | 3 | 70.1K | 20.4K | by Jan 1993 – Aug 2026 |
| Koehler-Mahlman Unit O-3-22511 | San Dia Producing Company only | Giddings (Austin Chalk-3) | Burleson | 1 | 58.3K | 624K | Mar 1994 – Mar 2025 |
| Koehler O-11-62701 | Hibernia Resources IV, LLC only | Tex-Hamon (Dean) | Dawson | 1 | 48.5K | 70.1K | by Jan 1993 – Aug 2026 |
| Koehler "82" O-11-64084 | Hibernia Resources IV, LLC only | Tex-Hamon (Dean) | Dawson | 1 | 31.3K | 75.3K | by Jan 1993 – Oct 2015 |
| Koehler, Frank O-1-2685 | Castillo Oil Company LLC only | Luling-Branyon | Caldwell | 2 | 25.7K | 15 | Jan 1994 – Jul 2026 |
| Koehler, Frank -C- O-1-3531 | Castillo Oil Company LLC only | Luling-Branyon | Caldwell | 4 | 19.4K | 29 | by Jan 1993 – Jul 2026 |
| Koehler O-1-11114 | K2 Petroleum, Inc. only | Somerset | Bexar | 9 | 10.1K | 167 | by Jan 1993 – Aug 2026 |
| Koehler, Frank -B- O-1-2519 | Castillo Oil Company LLC only | Luling-Branyon | Caldwell | 1 | 9.59K | 23 | by Jan 1993 – Jul 2026 |
| Koehler, Frank -A- O-1-996 | Castillo Oil Company LLC only | Luling-Branyon | Caldwell | 2 | 8.9K | 28 | by Jan 1993 – Jul 2026 |
| Koehler O-1-11140 | Mojave Resources, LLC only | Somerset | Bexar | 5 | 6.53K | 19 | by Jan 1993 – Aug 2026 |
| Koehler, Leroy -a- Unit O-3-14539 | Seguro Well Service, Inc. only | Giddings (Austin Chalk-3) | Burleson | 1 | 5.59K | 116K | by Jan 1993 – Jan 2008 |
| Koehler, J South O-1-11627 | Petrosaurus, Inc. only | Somerset | Bexar | 5 | 3.97K | 21 | by Jan 1993 – Aug 2021 |
| J. Koehler, North O-1-10655 | Petrosaurus, Inc. only | Somerset | Bexar | 6 | 3.8K | 20 | by Jan 1993 – Feb 2003 |
| Koehler, A. -A-3- O-1-11018 | Transamerica Energy Corp. only | Somerset | Bexar | 6 | 2.88K | 18 | by Jan 1993 – Mar 2002 |
| Koehler-Zook Unit O-1-18613 | Kaler Energy Corp. only | Marcelina Creek (Buda) | Wilson | 1 | 2K | 0 | Nov 2014 – Jan 2015 |
| Koehler, Frank -A- O-1-1113 | Eagle Ford Oil Co., Inc. only | Luling-Branyon | Caldwell | 1 | 1.56K | 21 | by Jan 1993 – Dec 2013 |
| Koehler O-1-12278 | Petro Lions, LLC only | Chicon Lake | Medina | 6 | 1.51K | 2 | Apr 1993 – Aug 2026 |
| Koehler O-1-11243 | Seagull Operating Co., Inc. only | Somerset | Bexar | 3 | 1.34K | 21 | by Jan 1993 – May 2019 |
| Koehler, Frank "A" O-1-5893 | Eagle Ford Oil Co., Inc. only | Luling-Branyon | Caldwell | 2 | 1.1K | 19 | by Jan 1993 – Jul 2014 |
| Koehler, Frank O-1-5887 | Eagle Ford Oil Co., Inc. only | Luling-Branyon | Caldwell | 2 | 1.09K | 34 | by Jan 1993 – Dec 2013 |
| Koehler O-1-1144 | Austin Operating, LLC. only | Luling-Branyon | Caldwell | 4 | 1.08K | 20 | by Jan 1993 – Oct 1998 |
| Koehler, Arthur J. O-1-10963 | Great Plains Resources, Inc. only | Somerset | Bexar | 9 | 887 | 2 | by Jan 1993 – Apr 1998 |
| Koehler O-1-1029 | Ginco Operating Co. only | Luling-Branyon | Caldwell | 8 | 489 | 2.09K | by Jan 1993 – Oct 1995 |
| Koehler O-1-11305 | Great Plains Resources, Inc. only | Somerset | Bexar | 4 | 452 | 88 | by Jan 1993 – Feb 2007 |
| Koehler -A-2- O-1-11019 | Transamerica Energy Corp. only | Somerset | Bexar | 1 | 218 | 17 | by Jan 1993 – Sep 1994 |
| Koehler, A&v O-1-6993 | Great Plains Resources, Inc. only | Somerset | Bexar | 1 | 204 | 14 | May 1993 – Dec 1995 |
| Koehler, A. -B- O-1-11017 | Aminex USA, Inc. only | Somerset | Bexar | 2 | 199 | 6 | by Jan 1993 – Oct 1998 |
| Koehler, Otillie O-1-6994 | Great Plains Resources, Inc. only | Somerset | Bexar | 1 | 188 | 22 | by Jan 1993 – Oct 1995 |
| Koehler, Otillie O-1-11016 | Aminex USA, Inc. only | Somerset | Bexar | 3 | 151 | 14 | by Jan 1993 – Sep 1994 |
| Koehler, J. O-1-1631 | Ginco Operating Co. only | Somerset | Bexar | 1 | 118 | 12 | Apr 1993 – Oct 1995 |
| Koehler, A. -a 1- O-1-11310 | Transamerica Energy Corp. only | Somerset | Bexar | 4 | 94 | 18 | by Jan 1993 – Sep 1994 |
| Koehler, O.L. O-1-10961 | Great Plains Resources, Inc. only | Somerset | Bexar | 1 | 59 | 2 | by Jan 1993 – Oct 1995 |
| Koehler, F.W. O-1-5792 | Moerbe, Stanley only | Jerry House (Escondido) | Zavala | 1 | 4 | 6 | by Jan 1993 – Apr 1994 |
| Koehler, H & W O-1-1630 | Ernst Enterprises only | Somerset | Bexar | 1 | 1 | 11 | Feb 1995 – Dec 1995 |
| Koehler, J. II O-1-11628 | Caspen Operating Company only | Somerset | Bexar | 15 | 0 | 0 | — |
| Koehler, C. O-11-17970 | Apache Corporation only | Tex-Hamon (Fusselman) | Dawson | 1 | 0 | 0 | — |
| Koehler O-10-27842 | Permian West Pipe, Inc. only | Breedlove, East (Spraberry) | Martin | 1 | 0 | 259 | by Jan 1993 – Jan 1993 |