| McKinney G-2-137609 | Deason Oil & Gas Interests | Tuleta, North (Slick) | 1 | 1.66K | 38.8K | by Jan 1993 – Aug 1993 |
| D. Martin Gas Unit G-2-168811 | Edge Petroleum Oper. Co., Inc. | Singleton (Pettus) | 1 | 1.65K | 449K | Apr 1998 – May 2003 |
| Sherwood, Ollie O-2-1069 | Cimarron Engineering, LLC | Mineral, West (Forney Sand) | 1 | 1.65K | 635 | by Jan 1993 – Feb 2017 |
| Npu (Ray 106-T) G-2-200187 | Paleo Oil Company LLC | Tulsita-Wilcox ( 7,700) | 1 | 1.64K | 1.3M | Nov 2003 – Jul 2026 |
| Eberstadt G-2-200528 | Anderson Oil Ltd. | Caesar, South (5650) | 1 | 1.63K | 209K | Mar 2004 – Dec 2017 |
| Mengers, Wilber G-2-160540 | Great Texas Crude Inc. | Tynan, East (Frio 4800) | 1 | 1.62K | 747K | Sep 1996 – May 2001 |
| Sutherland G-2-231589 | Abraxas Petroleum Corporation | Caesar, South (9600) | 1 | 1.61K | 71.2K | Oct 2007 – Feb 2010 |
| Roberson, W. A. G-2-102744 | Syj Oil & Gas, Inc. | Plummer-Wilcox (Recklaw) | 1 | 1.57K | 36K | by Jan 1993 – Mar 2002 |
| Edler, J.B. G-2-227594 | Welder Exploration & Prod., Inc. | Yougeen (Yegua 5400) | 1 | 1.57K | 422K | May 2007 – May 2009 |
| Schauer O-2-8645 | Welder Exploration & Prod., Inc. | Beeville, SW. (Hockley) | 1 | 1.55K | 16.8K | Jun 2001 – Feb 2003 |
| Green "B" O-2-7862 | Nelson, James L. | Cosden, West (Luling 7200) | 1 | 1.54K | 9.98K | Mar 1993 – Feb 1994 |
| J&i Teague G-2-115246 | Nelson, James L. | Friendship Church (Hockley) | 1 | 1.53K | 8.46K | Jun 1994 – Dec 2003 |
| Malone -D- G-2-253345 | T-C Oil Company, LLC | Medio Creek (4100) | 1 | 1.52K | 2.07M | Oct 2009 – Aug 2026 |
| Schrade-Dahl Unit G-2-189912 | Petrovybe Opco LLC | Caesar, South (Wilcox 10450) | 1 | 1.51K | 59.8K | Sep 2001 – Mar 2002 |
| Bear Creek Ranch G-2-157869 | Bellows Operating Co., L. C. | Singleton, E. (Hockley) | 1 | 1.51K | 303K | Feb 1996 – May 1999 |
| Schauer, J.M. O-2-6737 | Saxum Oil & Gas, LLC | Beeville, Sw.(pettus 4525) | 1 | 1.5K | 18 | by Jan 1993 – Oct 2000 |
| E. Whiddon O-2-11352 | Trailblazer Oil & Gas LLC | Beeville, W. (Hockley) | 1 | 1.49K | 390 | Mar 2017 – Aug 2024 |
| Brown G-2-257302 | Enco Exploration Company | Norbee, S (Pettus) | 1 | 1.49K | 137K | Jul 2010 – Feb 2012 |
| Schauer O-2-10360 | Welder Exploration & Prod., Inc. | Fred Long (Hockley 3850) | 1 | 1.48K | 0 | Jul 2012 – Jan 2014 |
| Lewis Ranch O-2-8539 | Welder Exploration & Prod., Inc. | Poesta Creek, NW. (Hockley) | 1 | 1.48K | 39.9K | Nov 1999 – Feb 2002 |
| Riggle O-2-10457 | Welder Exploration & Prod., Inc. | Yougeen (Hockley 4500) | 1 | 1.46K | 17.1K | Feb 2013 – Apr 2014 |
| Lewis Ranch "B" G-2-177530 | Welder Exploration & Prod., Inc. | Poesta Creek, N. (Hockley) | 1 | 1.46K | 179K | Nov 1999 – Jun 2002 |
| Mrs Unit O-2-9173 | Enco Exploration Company | Norbee (Hockley 3700) | 1 | 1.45K | 38.3K | Jan 2008 – Mar 2009 |
| Schauer O-2-9215 | Saxum Oil & Gas, LLC | Beeville, NW. (Hockley) | 1 | 1.44K | 0 | May 2008 – May 2011 |
| Npu (Union-Spielhagan-1) G-2-39719 | Paleo Oil Company LLC | Tulsita-Wilcox ( Luling) | 1 | 1.43K | 2.91M | by Jan 1993 – Jul 2026 |
| Edler, J. B. G-2-240437 | Welderxp Ltd. | Yougeen (Hockley 4500) | 1 | 1.43K | 191K | Jul 2008 – Aug 2026 |
| Freeze G-2-167470 | Edge Petroleum Oper. Co., Inc. | Singleton (Pettus) | 1 | 1.43K | 64K | Jan 1998 – Nov 2000 |
| Welder, John J. O-2-4638 | Aurora Resources Corporation | Berkow (Kohler) | 4 | 1.42K | 500 | by Jan 1993 – Jun 1998 |
| Bolland O-2-7953 | Kriken Oil & Gas | Bolland Ranch (Hockley) | 2 | 1.42K | 13 | Dec 1993 – Feb 1995 |
| Mitchell O-2-9378 | Gaither Petroleum Corporation | Mudhill (Hockley) | 1 | 1.42K | 426 | Mar 2008 – Sep 2009 |
| South Texas Children's Home O-2-13198 | Royal Production Company, Inc. | Cosden, W. (3050 Sand) | 1 | 1.4K | 0 | Feb 2026 – Aug 2026 |
| Koenig G-2-269132 | Enco Exploration Company | Norbee S. (Yegua 4800) | 1 | 1.4K | 61.5K | Aug 2012 – Dec 2013 |
| RTC G-2-299379 | Paleo Oil Company LLC | Pawnee (Slick) | 1 | 1.38K | 63.5K | Mar 2024 – Feb 2025 |
| Kircher G-2-157870 | Great Texas Crude Inc. | Tynan, East (Frio 4800) | 1 | 1.38K | 642K | Mar 1996 – Dec 2000 |
| Craft G-2-280521 | Paleo Oil Company LLC | Yougeen (Hockley 4500) | 1 | 1.38K | 48.9K | Aug 2015 – Jul 2026 |
| Whiddon O-2-10348 | Enco Exploration Company | Holzmark (Yegua) | 1 | 1.37K | 27.6K | Aug 2012 – May 2013 |
| Heard, C.E. "B" G-2-215103 | Lakeshore Operating, LLC | Heard Ranch (4500) | 1 | 1.36K | 1.46M | Aug 2005 – Mar 2026 |
| Fain-Beck Gas Unit G-2-4068 | Sydson Energy, Inc. | San Domingo (7700) | 1 | 1.36K | 174K | by Jan 1993 – Jan 2010 |
| Mena O-2-6235 | Carter, Lee S. | Mineral, West (Forney Sand) | 1 | 1.36K | 68 | by Jan 1993 – Mar 1999 |
| Heard, C. E. "B" G-2-230422 | Lakeshore Operating, LLC | Heard Ranch (4600) | 1 | 1.34K | 2.14M | Mar 2007 – Aug 2026 |
| Wolters G-2-139163 | Chisholm Oil & Gas, LC | Sliva, Southwest (4070 Sand) | 1 | 1.33K | 1.44M | by Jan 1993 – Nov 2015 |
| Npu (Ray 109) G-2-220892 | Paleo Oil Company LLC | Tulsita-Wilcox (MWC) | 1 | 1.31K | 2.45M | Apr 2006 – Jul 2026 |
| Holzmark G-2-195114 | Trident Corporation | Holzmark (Pettus) | 1 | 1.3K | 302K | Apr 2003 – Aug 2007 |
| C.E. Heard "B" G-2-230518 | Lakeshore Operating, LLC | Heard Ranch (4400) | 1 | 1.29K | 1.8M | Mar 2007 – Aug 2026 |
| Dirks-Hatch O-2-8995 | Inland Ocean, Inc. | Mudhill (Hockley) | 1 | 1.28K | 543 | Oct 2005 – Nov 2007 |
| Toogood G-2-292500 | Trailblazer Oil & Gas LLC | Beeville, Sw.(pettus 4525) | 1 | 1.25K | 103K | Mar 2022 – May 2026 |
| Murphy, John O-2-3233 | Coker, Jonathan C., Inc. | Papalote, E. (3250) | 4 | 1.23K | 21 | by Jan 1993 – Feb 2002 |
| Turnbow G-2-164433 | Brazos Production Services, Inc. | Rudman (Cannan Sd. 9720) | 1 | 1.22K | 159K | Aug 1997 – Feb 2003 |
| Gill, Claudia P. G-2-188044 | Britanco, L.L.C. | Tuleta, West (Vicksburg G) | 1 | 1.22K | 293K | Apr 2001 – Aug 2026 |
| Ray, George A. G-2-186181 | Devon Energy Production Co, L.P. | Kerr (7950) | 1 | 1.21K | 125K | Jun 2001 – Jun 2002 |