| Brown, Leslie O-8-9545 | Karper Oil & Gas Corporation | Bissett, E. (Strawn Sand) | Stonewall | 1 | 223K | 531 | Jan 1993 – May 2017 |
| Duda O-8-25476 | Karper Oil & Gas Corporation | Mullen Ranch (Bend) | Stonewall | 2 | 203K | 57.7K | Jan 1993 – Jun 2011 |
| Duval County Ranch Company -J- O-4-3480 | Karper Oil & Gas Corporation | Dejay (Chernosky) | Duval | 1 | 114K | 21 | Jan 1993 – Feb 2026 |
| Harris O-13-20200 | Karper Oil & Gas Corporation | Ratcliff (Strawn 4575) | Clay | 1 | 98.4K | 41 | Jan 1993 – Feb 2026 |
| Holcomb O-13-28599 | Karper Oil & Gas Corporation | Karran, North (Marble Falls) | Young | 1 | 84.2K | 1.07M | Jul 1993 – Aug 2020 |
| Taylor, W. H., Estate O-13-20594 | Karper Oil & Gas Corporation | Mitchell (Strawn) | Archer | 1 | 75.6K | 65 | Jan 1993 – Feb 2026 |
| Senkel-Hawkins O-13-22924 | Karper Oil & Gas Corporation | Langston-Kleiner (Strawn) | Young | 4 | 68.9K | 35.3K | Jan 1993 – Feb 2026 |
| Ran-Mag Unit O-13-11793 | Karper Oil & Gas Corporation | Lupton-McLester | Young | 17 | 68.3K | 52.9K | Jan 1993 – Feb 2026 |
| Clark Estate "B" 6 O-13-28978 | Karper Oil & Gas Corporation | Karran, North (Marble Falls) | Young | 1 | 65.6K | 772K | Jun 1995 – Feb 2026 |
| Holcomb Heirs O-13-30037 | Karper Oil & Gas Corporation | Karran, North (Chappel) | Young | 1 | 55K | 0 | Jun 2002 – Jul 2015 |
| Senkel O-13-23651 | Karper Oil & Gas Corporation | Langston-Kleiner (Strawn) | Young | 3 | 45.9K | 5.21K | Jun 1995 – Feb 2026 |
| Baber, Wilber O-2-5150 | Karper Oil & Gas Corporation | Provident City (Wilcox 9050) | Lavaca | 1 | 42.1K | 1.72M | Jan 1993 – Nov 2020 |
| Holcomb State O-13-30786 | Karper Oil & Gas Corporation | Karran, North (Chappel) | Young | 1 | 41.9K | 36K | May 2007 – Aug 2016 |
| Dixon, Loma G-3-154800 | Karper Oil & Gas Corporation | Ramsey ( 9300 Wilcox) | Colorado | 1 | 30.3K | 797K | Apr 1995 – Feb 2026 |
| Downey, Mary Clark O-13-28547 | Karper Oil & Gas Corporation | Heather Conglomerate | Young | 1 | 29.9K | 341K | Jan 1993 – Jun 2016 |
| Daws, Nan "1677" O-13-31416 | Karper Oil & Gas Corporation | Daws (Strawn 3500) | Young | 2 | 21.5K | 2.45K | Jul 2009 – Jan 2026 |
| Vance, H. E., et Al O-13-14221 | Karper Oil & Gas Corporation | Young County Regular | Young | 1 | 21.4K | 33.8K | Jan 1993 – Feb 2026 |
| E.M. Jones O-8-30241 | Karper Oil & Gas Corporation | Dry Bones (Strawn) | Stonewall | 1 | 15.8K | 0 | Oct 2008 – May 2019 |
| Vines, W. C. O-8-9829 | Karper Oil & Gas Corporation | Shackelford County Regular | Shackelford | 1 | 10.8K | 185K | Jan 1993 – Jan 2012 |
| Downey, Mary Clark O-13-29887 | Karper Oil & Gas Corporation | Karran, North (Marble Falls) | Young | 1 | 10.5K | 3.11K | Apr 2001 – Dec 2014 |
| Allar O-13-15756 | Karper Oil & Gas Corporation | Kendall, N. (Strawn Sd.) | Young | 1 | 9.77K | 193 | Jan 1993 – Sep 2018 |
| Salters, Amanda B. G-13-147136 | Karper Oil & Gas Corporation | Wizard Wells (Atoka Congl., Up.) | Jack | 1 | 8.07K | 905K | Sep 1993 – Feb 2026 |
| Buckler Trust O-8-12367 | Karper Oil & Gas Corporation | Walker-Davis (Congl. 3850) | Stephens | 2 | 7.95K | 696K | Jan 1993 – Jun 2006 |
| Quirey G-3-150465 | Karper Oil & Gas Corporation | Bernard, East (7700) | Wharton | 1 | 6.92K | 687K | Jul 1994 – Jan 2019 |
| Walton, Will O-6-11088 | Karper Oil & Gas Corporation | Chapel Hill, NE. (Travis Peak) | Smith | 2 | 5.77K | 95.8K | Jan 1993 – Feb 1998 |
| Fitzgerald -A- O-13-19779 | Karper Oil & Gas Corporation | Young County Regular | Young | 1 | 5.66K | 21 | Jan 1993 – Sep 2015 |
| Buckler Trust G-8-137863 | Karper Oil & Gas Corporation | Walker-Davis (Duffer Lime) | Stephens | 1 | 5.24K | 217K | Jan 1993 – Apr 2009 |
| Davis, S. R. O-8-29439 | Karper Oil & Gas Corporation | Throckmorton County Regular | Throckmorton | 2 | 3.89K | 0 | Oct 2004 – Aug 2011 |
| Morris-Walker G-13-147834 | Karper Oil & Gas Corporation | Boonsville (Bend Congl., Gas) | Wise | 1 | 3.05K | 169K | Jan 1994 – Aug 2019 |
| Salters, Amanda B. G-13-140338 | Karper Oil & Gas Corporation | Wizard Wells (Atoka Congl., Up.) | Jack | 1 | 1.42K | 746K | Jan 1993 – Feb 2026 |
| Cherryhomes, T. H. Line Well G-13-155340 | Karper Oil & Gas Corporation | Jupiter (Conglomerate 3RD) | Jack | 1 | 989 | 690K | Oct 1995 – Feb 2026 |
| Dixon, Loma G/U G-3-113334 | Karper Oil & Gas Corporation | Ramsey ( 9500) | Colorado | 1 | 774 | 42.5K | Jan 1993 – Oct 1994 |
| Coffield-Daniels O-13-29886 | Karper Oil & Gas Corporation | Karran, North (Marble Falls) | Young | 1 | 758 | 16.1K | Apr 2001 – Mar 2011 |
| Hockaday Ranch O-13-28726 | Karper Oil & Gas Corporation | Victoria (3100) | Young | 1 | 589 | 92.6K | Apr 1993 – Apr 2006 |
| Clark O-13-29740 | Karper Oil & Gas Corporation | Young County Regular | Young | 1 | 489 | 0 | Jan 2000 – Aug 2001 |
| Fitzgerald "B" O-13-21506 | Karper Oil & Gas Corporation | Young County Regular | Young | 1 | 417 | 0 | Jul 1998 – Feb 2007 |
| Isbell, Minnie G-13-29169 | Karper Oil & Gas Corporation | Boonsville (Bend Congl., Gas) | Wise | 1 | 164 | 308K | Jan 1993 – Apr 2009 |
| Senkel O-13-25341 | Karper Oil & Gas Corporation | Young County Regular | Young | 1 | 109 | 0 | Feb 1999 – Nov 2002 |
| Walton, Will G-6-184416 | Karper Oil & Gas Corporation | Chapel Hill (Rodessa) | Smith | 1 | 83 | 3.84K | Jun 2001 – Dec 2002 |
| Buckler Trust Gas Unit 2 G-8-59457 | Karper Oil & Gas Corporation | Walker-Davis (Duffer Lime) | Stephens | 1 | 82 | 117K | Mar 1996 – May 2008 |
| Hockaday Ranch O-13-7579 | Karper Oil & Gas Corporation | Young County Regular | Young | 1 | 80 | 7.19K | Jan 1993 – Mar 1993 |
| Migl-Quinn G-2-254732 | Karper Oil & Gas Corporation | Speaks, SW. (Simpson) | Lavaca | 1 | 72 | 532K | Nov 2008 – Nov 2019 |
| Walton, J. G-6-154836 | Karper Oil & Gas Corporation | Chapel Hill, NE. (Travis Peak) | Smith | 1 | 30 | 6.92K | Mar 1995 – Jun 1997 |
| Allar G-13-42051 | Karper Oil & Gas Corporation | Young County Regular (Gas) | Young | 1 | 15 | 392K | Jan 1993 – Jul 2017 |
| Isbell, Minnie G-13-199291 | Karper Oil & Gas Corporation | Boonsville (Bend Congl., Gas) | Wise | 1 | 2 | 82.3K | Jan 2004 – Mar 2016 |
| Durham, W. J. G-13-29150 | Karper Oil & Gas Corporation | Boonsville (Bend Congl., Gas) | Jack | 1 | 1 | 123K | Jan 1993 – Jan 2004 |
| Paluxy Gas Unit G-6-226470 | Karper Oil & Gas Corporation | Chapel Hill (Paluxy) | Smith | 1 | 0 | 167 | Feb 2007 – Mar 2007 |