| R. L. Schaefer O-1-15688 | FW Eagle Ford I, LLC only | Eagleville (Eagle Ford-1) | Gonzales | 3 | 536K | 566K | Jan 2012 – Jul 2026 |
| D Schaefer OU 15-47 (Alloc-E) O-9-19385 | Crescent Energy Operating, LLC only | Spraberry (Trend Area) | Glasscock | 2 | 510K | 4.52M | Jun 2016 – Jul 2026 |
| Schaefer, Annie S. O-3-5618 | Denbury Onshore, LLC only | Hastings, East | — | 1 | 297K | 88.3K | Jan 1993 – Jul 2026 |
| Schaefer, E. C. O-2-394 | Magnum Producing, LP only | Cottonwood Creek, South | — | 4 | 224K | 46.7K | Jan 1993 – Jul 2026 |
| Schaefer, Roy A O-9-13572 | F&H Operating Company LLC only | Busher (Morris) | Runnels | 6 | 123K | 287K | Jan 1994 – Jul 2026 |
| L. Schaefer Oil Unit O-9-17567 | Crescent Energy Operating, LLC only | Spraberry (Trend Area) | Reagan | 3 | 121K | 1.22M | Jul 2011 – Jul 2026 |
| D Schaefer Oil Unit O-9-17791 | Crescent Energy Operating, LLC only | Spraberry (Trend Area) | Reagan | 2 | 96.6K | 767K | Feb 2012 – Jul 2026 |
| Schaefer, Roy O-9-13384 | F&H Operating Company LLC only | Busher (Morris) | Runnels | 3 | 81.9K | 50.4K | Jan 1993 – Jul 2026 |
| Schaefer, C. E. Sr. O-9-6172 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Reagan | 3 | 54.2K | 542K | Jan 1993 – Oct 2021 |
| Schaefer-A- O-9-15368 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Reagan | 2 | 52.4K | 466K | Mar 2003 – Jul 2026 |
| Schaefer O-8-16644 | Interstate Explorations LLC only | Nimrod,e. (Patio) | Eastland | 9 | 48.9K | 40 | Jan 1993 – Jul 2026 |
| Schaefer O-9-14844 | Hopewell Operating, Inc. only | Norton, N. (Capps) | Runnels | 2 | 41.9K | 173K | Nov 1998 – Jul 2026 |
| Schaefer, E.C. O-2-5033 | Chaparral Energy, L.L.C. only | Holly (Yegua 4500) | — | 1 | 39.9K | 35 | Jan 1993 – Jul 2014 |
| Schaefer Oil Unit O-3-21799 | Al-TX Operating Inc. only | Giddings (Austin Chalk-3) | Fayette | 1 | 38.9K | 73.6K | Jan 1993 – Aug 1995 |
| Schaefer-Manford Unit O-1-12982 | Burlington Resources Oil&gas Co. only | First Shot (Austin Chalk) | Gonzales | 1 | 19.5K | 11 | Jan 1993 – Nov 1996 |
| Kempner, H. O-13-20005 | Schaefer, Gary L. only | Archer County Regular | Archer | 2 | 16.8K | 21 | Jan 1993 – Oct 2010 |
| Schaefer -A- O-10-27260 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 14.3K | 139K | Jan 1993 – Aug 2010 |
| Schaefer-Hooks O-3-19439 | Old Timers Oil No. 2 Inc. only | Batson New | Hardin | 2 | 8.54K | 19 | Jan 1993 – Jul 2026 |
| Schaefer "A" O-8-28830 | Callarman, David only | Arledge (Lake Sand) | Eastland | 1 | 7K | 7.44K | Jul 2000 – Jul 2026 |
| Schaefer, O. "K" O-8-17758 | Eddie's Royalties, Inc. only | Green Show (Upper Caddo) | Eastland | 3 | 5.47K | 30.7K | Jan 1993 – Jul 2026 |
| Schaefer O-10-33966 | Caroil, LLC only | Brown & Thorp (Clear Fork) | Pecos | 1 | 4.78K | 13 | Aug 1993 – Jul 2026 |
| Schaefer O-8-22259 | Callarman, David only | Katlaco-Cook (Miss) | Eastland | 1 | 3.18K | 20.9K | Jan 1993 – Jul 2026 |
| Schaefer O-10-25999 | Nadel and Gussman Permian,l.l.c. only | Spraberry (Trend Area) | Glasscock | 1 | 2.47K | 53.1K | Jan 1993 – Jun 2002 |
| Schaefer O-2-6621 | Nelson, James L. only | Cottonwood Creek, S. (Yegua 4970 | De Witt | 1 | 2.4K | 23 | Jan 1993 – Aug 2009 |
| Schaefer, O. O-8-8238 | Hoffmann Oil Company only | Eastland County Regular | — | 2 | 1.46K | 22.4K | Jan 1993 – Jul 2026 |
| Schaefer O-8-22764 | Red Gap Oil & Gas LLC only | Eastland County Regular | Eastland | 6 | 809 | 65.2K | Jan 1993 – Jul 2026 |
| Schaefer, O. "B" O-8-21042 | Momentum Oil Company only | Nimrod,e. (Patio) | Eastland | 5 | 662 | 57 | Jan 1993 – Nov 2001 |
| Schaefer G-2-222952 | Big Shell Oil & Gas, Inc. only | Cottonwood Creek, S. (Yegua 4500 | De Witt | 1 | 0 | 1.35K | Jul 2006 – Feb 2007 |
| Schaefer G-8-287536 | Red Gap Oil & Gas LLC only | Eastland County Regular | Eastland | 1 | 0 | 1.35K | Jul 2019 – Jul 2026 |
| Johnson, A. H. O-8-19480 | Schaefer, Charlene J. only | Midkiff (Adams Branch) | Eastland | 3 | 0 | 0 | Jan 1993 – Oct 1999 |
| Schaefer G-9-164042 | Hopewell Operating, Inc. only | Norton, N. (Capps) | Runnels | 1 | 0 | 93.9K | Jul 1997 – Feb 1999 |
| Schaefer, O. "C" O-8-23043 | Arnot, W. G., Jr. only | Nimrod (Cross Cut) | Eastland | 1 | 0 | 0 | Jan 1993 – Apr 2007 |
| Schaefer A O-8-25607 | Callarman, David only | Katlaco-Cook (Strawn) | Eastland | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| Schaefer O-8-26816 | Standard American Oil Co. only | Wildcat | Eastland | 1 | 0 | 0 | Feb 1993 – Nov 1993 |
| Schaefer, Roy A G-9-279522 | F&H Operating Company LLC only | Busher (Morris) | Runnels | 1 | 0 | 0 | Oct 2015 – Jul 2026 |
| Schaefer-Buckner - HSL G-2-159524 | Allegro Investments, Inc. only | McDaniel (4100) | Jackson | 1 | 0 | 174K | Apr 1996 – Aug 2003 |
| Schaefer-Buckner - HSL G-2-159520 | Allegro Investments, Inc. only | McDaniel (3460) | Jackson | 1 | 0 | 38.7K | Apr 1996 – Aug 2003 |
| Schaefer-Buckner-HSL G-2-158333 | Allegro Investments, Inc. only | McDaniel, East (2170) | Jackson | 1 | 0 | 85.4K | Apr 1996 – Aug 1999 |
| Schaefer O-9-14594 | Ladd Operating Company only | Rowena, South (Ellenburger) | Runnels | 1 | 0 | 0 | May 1997 – Aug 1998 |
| Schaefer-Buckner-HSL G-2-155160 | Allegro Investments, Inc. only | McDaniel (3750) | Jackson | 1 | 0 | 378K | Jul 1995 – Jul 2000 |
| Schaefer, E. C. G-2-145447 | Magnum Producing, LP only | Cottonwood Creek, S (Frio 2800) | De Witt | 1 | 0 | 55.3K | Mar 1993 – Jul 2026 |
| Schaefer, E.C. G-2-135252 | Magnum Producing & Operating Co. only | Cottonwood Creek, S. (Frio 3050) | De Witt | 1 | 0 | 0 | Jan 1993 – Mar 1993 |
| Schaefer, E.C. G-2-132549 | Hydrocarbon Operating, Inc. only | Cottonwood Creek, S. (Frio 2300) | De Witt | 1 | 0 | 0 | Jan 1993 – Feb 1994 |
| Zengerle Unit G-2-76385 | Stuart-Schaefer Co. only | Thomaston (Yegua 4900) | De Witt | 1 | 0 | 0 | Jan 1993 – Aug 1993 |
| Schaefer, Roy A G-9-279521 | F&H Operating Company LLC only | Busher (Morris) | Runnels | 1 | 0 | 1.07K | Oct 2015 – Jul 2026 |
| Schaefer, Roy A G-9-279520 | F&H Operating Company LLC only | Busher (Morris) | Runnels | 1 | 0 | 1.43K | Oct 2015 – Jul 2026 |
| Schaefer G-3-158239 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk, Gas) | Grimes | 1 | 0 | 6.19M | Mar 1996 – Jul 2026 |
| Schaefer, Roy A G-9-279518 | F&H Operating Company LLC only | Busher (Morris) | Runnels | 1 | 0 | 1.07K | Oct 2015 – Jul 2026 |
| Schaefer-Brice G-3-125421 | Old Timers Oil only | Batson Old | Hardin | 1 | 0 | 51 | Jan 1993 – Sep 2012 |
| Schaefer "A" G-8-121385 | Callarman, David only | Arledge (Lake Sand) | Eastland | 1 | 0 | 3.99K | Jan 1993 – Oct 2000 |