| South Texas Childrens Home G-2-138926 | Wofford, C. J. | Mineral, North (9850) | 1 | 839 | 61.8K | by Jan 1993 – Nov 2013 |
| Beck O-2-10894 | Enco Exploration Company | Norbee S. (Yegua 4800) | 1 | 832 | 13.1K | Jul 2014 – Feb 2016 |
| Culli G-2-173186 | Edge Petroleum Oper. Co., Inc. | Singleton, E. (Pettus) | 1 | 832 | 72.8K | Oct 1998 – Feb 2000 |
| Algea G-2-165204 | Magnum Engineering Company | Malcomb (3608 Hockley) | 1 | 830 | 35.6K | Aug 1997 – Jan 1998 |
| Evans G-2-262233 | Welderxp Ltd. | Yougeen (5500) | 1 | 826 | 150K | Aug 2011 – Apr 2013 |
| Carpenter O-2-10889 | Enco Exploration Company | Norbee S. (Yegua 4800) | 1 | 820 | 301 | Jun 2014 – Mar 2017 |
| Harrell, E. L. O-2-2552 | Hardin Energy Co., Inc. | Tuleta, South (Hockley) | 2 | 818 | 49 | by Jan 1993 – Apr 1997 |
| Brooks Trust G-2-232236 | Dirks Petroleum Company | Cadiz (2ND Slick Wilcox) | 1 | 805 | 72.7K | Oct 2007 – Dec 2008 |
| Green Miller Unit G-2-147120 | Harper Hefte, Inc. | Papalote (4680) | 1 | 782 | 51.7K | Oct 1993 – Aug 1995 |
| Ray, George A. G-2-198673 | Devon Energy Production Co, L.P. | Kerr (7950) | 1 | 778 | 80.4K | Aug 2003 – May 2004 |
| Trial G-2-257813 | Trailblazer Oil & Gas LLC | Norbee (Hockley 3700) | 1 | 770 | 223K | Aug 2010 – Jul 2020 |
| Npu (Ray -12 ) G-2-139059 | Paleo Oil Company LLC | Tulsita-Wilcox ( 6800 Reklaw) | 1 | 763 | 352K | by Jan 1993 – Oct 2013 |
| Wtu Robinson G-2-220802 | West Tuleta Operating Corp. | Tuleta, West (Slick-Wilcox 7900) | 1 | 763 | 48.2K | Apr 2006 – Oct 2010 |
| Stouss Estate O-2-1107 | Staples, James W. | Mudhill (Hockley) | 2 | 759 | 145 | by Jan 1993 – Nov 1999 |
| Thomson-Barrow Corp.c G-2-166405 | C & E Operating, Inc. | Laura Thomson (4850) | 1 | 756 | 302K | Dec 1997 – Feb 2006 |
| Nichols, J. T. Gas Unit 1 G-2-265493 | Falcon Production LLC | Sugarkane (Eagle Ford) | 1 | 755 | 481K | Oct 2011 – Jun 2026 |
| McKinney G-2-145860 | Deason Oil & Gas Interests | Tuleta, North (Slick) | 1 | 755 | 20.2K | Apr 1993 – Jan 1994 |
| Edler, J.B. G-2-259886 | Welderxp Ltd. | Yougeen (Hockley 4500) | 1 | 749 | 327K | Jun 2009 – Aug 2026 |
| Green, Helen G-2-222200 | Vision Oil and Gas LLC | Causey (11,100) | 1 | 740 | 47.8K | Sep 2006 – Sep 2019 |
| Gill Ranch G-2-269523 | SV Energy Company, LLC | Beeville, SW. (Pettus, Lo.) | 1 | 733 | 16.3K | Apr 2013 – Oct 2014 |
| Ray G-2-262921 | Trinity River Energy Oper, LLC | Kerr (8200) | 1 | 711 | 100K | Oct 2010 – Apr 2012 |
| Harkins, Janie G-2-133406 | Lundberg Operating Corporation | Forked Creek (Frio 5050) | 1 | 710 | 167K | by Jan 1993 – Jul 1999 |
| Carpenter G-2-270942 | Enco Exploration Company | Norbee S. (Yegua 4800) | 1 | 710 | 41K | Aug 2013 – May 2014 |
| Eberstadt G-2-218338 | Anderson Oil Ltd. | Caesar, South (5650) | 1 | 696 | 204K | Jan 2006 – Mar 2010 |
| Heard, C. E. "B" G-2-232874 | Lakeshore Operating, LLC | Heard Ranch (3650) | 1 | 687 | 872K | Sep 2007 – Jan 2023 |
| Nse O'Brien G-2-238791 | North Shore Energy, L.L.C. | Blanconia (4450) | 1 | 669 | 250K | Jun 2008 – Jun 2012 |
| Rico G-2-246280 | Gaither Petroleum Corporation | Strauch-Wilcox (Pettus) | 1 | 662 | 250K | Nov 2008 – May 2012 |
| Ray G-2-232139 | Legend Natural Gas II, LP | Tulsita-Wilcox (MWC) | 1 | 657 | 22.9K | Sep 2007 – May 2012 |
| Edler, J. B. G-2-231280 | Welderxp Ltd. | Yougeen (Vicksburg 3700) | 1 | 654 | 80K | Oct 2007 – Aug 2026 |
| Schneider Estate O-2-7130 | Texacal, Inc. | Plummer | 1 | 653 | 43 | by Jan 1993 – Apr 1999 |
| Algea Gas Unit G-2-147028 | Wagner Oil Company | Orangedale (Luling, Lower) | 1 | 648 | 103K | Sep 1993 – Apr 1995 |
| Le Blanc G-2-151030 | S & C Construction, Inc. | Tuleta, South (Slick) | 1 | 638 | 20.4K | Aug 1994 – Nov 1996 |
| O'Brien, J. M. G-2-160772 | C & E Operating, Inc. | Blanconia (3700) | 1 | 636 | 1.9M | Nov 1996 – Jul 2012 |
| Whiddon-Seger Gas Unit G-2-271493 | Poco LLC | Linke (5900) | 1 | 628 | 18.4K | Oct 2013 – Jun 2014 |
| Shirley G-2-293732 | Dahco Operating, LLC | Mineral, East (Hockley) | 1 | 628 | 21.5K | Jul 2022 – Jun 2023 |
| Edler, J.B. G-2-252951 | Welderxp Ltd. | Yougeen (Hockley 4500) | 1 | 627 | 134K | Aug 2009 – Oct 2025 |
| Heard, C. E. "B" G-2-215104 | Lakeshore Operating, LLC | Heard Ranch (3650) | 1 | 620 | 1.15M | Aug 2005 – Aug 2026 |
| Ray G-2-228874 | Paleo Oil Company LLC | Tulsita-Wilcox (MWC) | 1 | 619 | 43.5K | Jun 2007 – Feb 2014 |
| Chandler Gas Unit G-2-197270 | Prime Operating Company | Normanna (Consolidated) | 1 | 616 | 62.2K | Jun 2003 – Aug 2004 |
| Milagros Ranch G-2-266613 | Paleo Oil Company LLC | Heard Ranch (4400) | 1 | 614 | 860K | Mar 2012 – Jul 2026 |
| Brown O-2-11118 | Enco Exploration Company | Norbee (Hockley 3700) | 1 | 614 | 947 | Jul 2015 – Jun 2016 |
| Brown H O-2-10580 | Enco Exploration Company | Norbee, S.E. (Hockley) | 1 | 604 | 16.5K | Jul 2013 – Dec 2013 |
| Rabe O-2-8180 | Hyquest Energy, Inc. | Normanna (Hockley 3525) | 1 | 600 | 0 | Apr 1996 – Nov 1997 |
| Ballard G-2-227236 | Welderxp Ltd. | Rudman (Cannan Sd. 9720) | 1 | 599 | 65.4K | Mar 2007 – Sep 2008 |
| Ray, George A. G-2-221626 | Paleo Oil Company LLC | Tulsita-Wilcox ( Mackhank) | 1 | 595 | 19.9K | Jun 2006 – Jul 2026 |
| Edwards G-2-255115 | T-C Oil Company, LLC | Medio Creek (4300) | 1 | 594 | 1.17M | Jan 2010 – Jul 2023 |
| Dirks O-2-10665 | Inland Ocean, Inc. | Five Oaks (3150) | 1 | 594 | 26.8K | Aug 2013 – Jul 2016 |
| Norwell G-2-172751 | Tidal Petroleum, Inc. | Tuleta (4400) | 1 | 593 | 195K | Feb 1999 – Apr 2002 |
| Special G-2-168112 | Great Texas Crude Inc. | Tynan, East (Frio 4800) | 1 | 590 | 141K | Feb 1998 – Apr 2000 |
| Spielhagen, E. R. G-2-197183 | Hughes, Dan A. Company | Causey (11,100) | 1 | 584 | 38.7K | Jun 2003 – Aug 2004 |