| Sheppard, M. O. O-7-6846 | Basa Resources, Inc. only | East Texas | Gregg | 69 | 1.64M | 743K | Jan 1993 – Apr 2026 |
| Sheppard A G-2-293720 | Devon Energy Production Co, L.P. only | Eagleville (Eagle Ford-2) | De Witt | 1 | 180K | 1.75M | Nov 2022 – Apr 2026 |
| Sheppard, J. H. O-7-7812 | Basa Resources, Inc. only | East Texas | Upshur | 2 | 122K | 2.93K | Jan 1993 – Apr 2026 |
| Sheppard-Anne O-6-13734 | Buffco Production Inc. only | Blocker (Richardson Sand) | Harrison | 1 | 114K | 147K | Sep 1997 – Apr 2026 |
| Sheppard O-7-6613 | Linder, John Operating Co., LLC only | East Texas | Gregg | 8 | 88.1K | 75.4K | Jan 1993 – Apr 2026 |
| Sheppard Gas Unit G-2-148430 | Blackbrush O & G, LLC only | Buchel (Edwards) | De Witt | 1 | 66.1K | 2.63M | Jan 1994 – Apr 2026 |
| Sheppard A G-2-264158 | Devon Energy Production Co, L.P. only | Eagleville (Eagle Ford-2) | De Witt | 1 | 65.4K | 672K | Nov 2011 – Apr 2025 |
| Sheppard, M. O. O-7-6026 | 4-Sight Operating Company, Ltd. only | East Texas | Gregg | 4 | 63.3K | 53.1K | Jan 1993 – Apr 2026 |
| Sheppard, M. O. O-7-7992 | Basa Resources, Inc. only | East Texas | Gregg | 3 | 44.3K | 29.9K | Jan 1993 – Apr 2026 |
| Sheppard Gas Unit G-2-77031 | Pioneer Natural Res. USA, Inc. only | Buchel (Edwards) | De Witt | 1 | 42.8K | 1.95M | Jan 1993 – Aug 2012 |
| Sheppard 'C' O-13-33364 | Scout Energy Management LLC only | Risch, East (Caddo Congl.) | Jack | 3 | 36.9K | 97.6K | Jan 2015 – Apr 2026 |
| Sheppard-Whatley Unit O-6-874 | Southwest Operating, Inc.-Tyler only | Manziel (Sub-Clarksville) | Wood | 2 | 35.6K | 48 | Jan 1993 – Apr 2026 |
| Sheppard "C" O-13-29356 | Scout Energy Management LLC only | Morris (Consolidated Congl.) | Jack | 1 | 35.2K | 254K | Jul 1997 – Feb 2015 |
| Sheppard Unit O-1-12942 | U.S.A. Plugging Company only | Pearsall (Austin Chalk) | Frio | 1 | 31.9K | 57K | Jan 1993 – Oct 1998 |
| Sheppard, B. Gas Unit 2 O-6-15941 | TGNR East Texas LLC only | Carthage (Travis Peak) | Rusk | 1 | 16.2K | 5.01K | Jul 2022 – Aug 2025 |
| Sheppard O-5-2748 | Green River Resources Inc. only | Trinidad, S. (Rodessa) | Henderson | 2 | 13.7K | 16.5K | Jan 1993 – May 2006 |
| Sheppard, B. et Al G-6-142169 | Eqv Operating LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 8.48K | 1.98M | Jan 1993 – Apr 2026 |
| Sheppard "C" O-6-13566 | Fair Oil, Ltd. only | Manziel, SE. (Gloyd) | Wood | 1 | 8.17K | 64.3K | Jun 1995 – Nov 2001 |
| Sheppard "CI" O-13-29613 | Chief Oil & Gas LLC * only | Morris (Consolidated Congl.) | Jack | 1 | 6.93K | 486K | Dec 1998 – Oct 2003 |
| Sheppard, B. et Al G-6-140401 | Eqv Operating LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 6.86K | 2.38M | Jan 1993 – Apr 2026 |
| Sheppard, B. et Al G-6-142170 | Eqv Operating LLC only | Oak Hill (Cotton Valley) | Panola | 1 | 6.51K | 1.23M | Feb 1993 – Apr 2026 |
| Sheppard "C" G-6-186585 | Southwest Operating, Inc.-Tyler only | Manziel, SE. (Gloyd) | Wood | 1 | 6.45K | 497K | Dec 2001 – Apr 2026 |
| Sheppard "C" G-6-147098 | Marathon Oil Company only | Manziel, SE. (Gloyd) | Wood | 1 | 5.87K | 326K | Sep 1993 – Apr 1995 |
| Sheppard Unit O-3-13525 | Union Pacific Resources Company only | Giddings (Austin Chalk-3) | Lee | 1 | 5.73K | 118K | Jan 1993 – Jul 1999 |
| Sheppard, B. et Al G-6-180540 | Eqv Operating LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 5.52K | 1.34M | Oct 2000 – Apr 2026 |
| Sheppard, B. et Al G-6-201718 | Eqv Operating LLC only | Oak Hill (Cotton Valley) | Panola | 1 | 4.66K | 816K | Feb 2004 – Apr 2026 |
| Sheppard, B. et Al G-6-150765 | Memorial Production Oper. LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 4.43K | 1.57M | Jun 1994 – Dec 2014 |
| Sheppard, B. et Al G-6-140133 | Eqv Operating LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 4.23K | 1.67M | Jan 1993 – Apr 2026 |
| Sheppard "A" O-13-29521 | Chief Oil & Gas LLC * only | Morris (Consolidated Congl.) | Wise | 1 | 4.02K | 65.9K | Mar 1998 – Jun 2003 |
| Sheppard "B" G-13-164626 | Scout Energy Management LLC only | Boonsville (Bend Congl., Gas) | Jack | 1 | 3.55K | 289K | Jul 1997 – Apr 2026 |
| Sheppard "CI" G-13-168694 | Devon Energy Production Co, L.P. only | Boonsville (Bend Congl., Gas) | Jack | 1 | 3.51K | 255K | Mar 1998 – Feb 2015 |
| Sheppard, B. et Al G-6-115043 | Eqv Operating LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 3.44K | 1.5M | Jan 1993 – Apr 2026 |
| Sheppard Unit G-3-174140 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 1 | 3.3K | 89.4K | Aug 1999 – Oct 2023 |
| Sheppard, B. et Al G-6-93881 | Eqv Operating LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 2.92K | 708K | Jan 1993 – Apr 2026 |
| Sheppard, O. O-13-28533 | Burk Royalty Company only | Risch, East (Caddo Congl.) | Jack | 1 | 2.59K | 1.99K | Mar 1993 – Sep 1994 |
| Sheppard, M. O. G-6-165023 | Diversified Production LLC only | Glenwood (Cotton Valley) | Gregg | 1 | 2.03K | 481K | Aug 1997 – Apr 2026 |
| Sheppard GU 1 G-6-189944 | Faulconer Energy, LLC only | Gladewater (Haynesville) | Gregg | 1 | 1.32K | 4.81M | May 2002 – Apr 2026 |
| Sheppard, O. G-13-99371 | Burk Royalty Company only | Boonsville (Bend Congl., Gas) | Jack | 1 | 650 | 773 | Jan 1993 – Feb 1993 |
| Sheppard, O. "A" O-13-27626 | Anadarko Petroleum Corporation only | Jack County Regular | Jack | 1 | 610 | 570 | Jan 1993 – Sep 1993 |
| Sheppard "C" O-6-12667 | Marathon Oil Company only | Manziel, SE. (Travis Peak) | Wood | 1 | 592 | 13.6K | Jan 1993 – Aug 1993 |
| Sheppard "A" G-13-196330 | Scout Energy Management LLC only | Morris (Consolidated Congl.) | Wise | 1 | 522 | 86.4K | Jul 2003 – May 2023 |
| McClurg-Sheppard O-13-11485 | Burk Royalty Company only | Risch, SE. (Caddo Congl.) | Wise | 2 | 293 | 8.44K | Jan 1993 – Jan 1995 |
| Sheppard O-6-14516 | St. Mary Land & Exploration Co. only | Walkers Chapel (Pettit 8100) | Rusk | 1 | 177 | 0 | Jun 2006 – Jun 2006 |
| Galvez-Sheppard Gas Unit G-6-161969 | Quantum Resources Management,llc only | Glenwood (Cotton Valley) | Gregg | 1 | 101 | 401K | Jan 1997 – Nov 2013 |
| B. Sheppard G-6-283952 | Comstock Oil & Gas, LLC only | Carthage (Haynesville Shale) | Rusk | 1 | 88 | 5.13M | Jun 2017 – Apr 2026 |
| Sheppard, Bailey et Al G-6-82332 | TGNR East Texas LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 56 | 309K | Jan 1993 – Apr 2026 |
| Sheppard "A" G-13-165981 | Scout Energy Management LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 51 | 95.3K | Nov 1997 – Apr 2026 |
| Bailey-Sheppard GU5 G-6-207705 | TGNR East Texas LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 48 | 536K | Dec 2004 – May 2015 |
| Sheppard G-13-58205 | Dallas Production, Inc. only | Gas Finders (Congl.) | Denton | 1 | 0 | 9.26K | Jan 1993 – May 1995 |
| Sheppard, Bailey et Al G-6-150261 | TGNR East Texas LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 0 | 964K | May 1994 – Apr 2026 |