| Lopez G-2-245443 | Kaler Energy Corp. | Rudman (9300) | 1 | 584 | 72.7K | Dec 2007 – Jun 2013 |
| Bridge, S. R. G-2-40469 | Prime Operating Company | Normanna (Consolidated) | 1 | 583 | 105K | Feb 1997 – May 2002 |
| Jimmy McDonald O-2-12487 | Paloma Operating, LLC | Tynan, East (Frio 3420) | 1 | 581 | 0 | Mar 2022 – Jun 2024 |
| Staples, J. Jr. G-2-194719 | Saxum Oil & Gas, LLC | Tuleta (4400) | 1 | 575 | 113K | Feb 2002 – Nov 2005 |
| Anderson G-2-188510 | C & E Operating, Inc. | Papalote, West (3950) | 1 | 558 | 543K | Jun 2001 – Jun 2011 |
| Page, C. S. O-2-7228 | Dartex Energy Corporation | Cosden, W. (Hockley Lower) | 1 | 556 | 5 | Oct 1995 – Apr 2016 |
| N.P.U. (Scarborough 4) G-2-233563 | Paleo Oil Company LLC | Tulsita-Wilcox ( Slick) | 1 | 555 | 950K | Mar 2008 – Aug 2021 |
| Knight, Jack et Al O-2-7593 | J.W. Oil Company | Goree (Vicksburg) | 1 | 551 | 0 | Jan 2001 – Nov 2006 |
| Handy-Roark Unit G-2-257901 | T-C Oil Company, LLC | Berclair, SW. (3300) | 1 | 545 | 1.62M | Sep 2010 – Dec 2024 |
| Basinger, C. W. O-2-2942 | Dartex Energy Corporation | Dirks (Hockley 2700) | 1 | 543 | 5.79K | by Jan 1993 – Sep 2008 |
| Crown G-2-167057 | Great Texas Crude Inc. | Tynan, East (Frio 4800) | 1 | 543 | 247K | Jan 1998 – Jun 1999 |
| Heard, C. E. "B" G-2-236033 | Lakeshore Operating, LLC | Heard Ranch (3650) | 1 | 538 | 939K | Sep 2006 – May 2023 |
| Fox, J. E. et Al G-2-184610 | Rincon Petroleum Corporation | Caesar, South (5650) | 1 | 537 | 133K | Jun 2001 – Jun 2013 |
| Krause G-2-272581 | Paleo Oil Company LLC | Yougeen (Hockley 4500) | 1 | 529 | 150K | Feb 2014 – Jul 2026 |
| Carpenter O-2-12231 | Central Gulf Petroleum Inc | Theis, South(slick First) | 2 | 520 | 1.98K | Aug 2021 – Aug 2025 |
| Eberstadt G-2-239795 | Anderson Oil Ltd. | Caesar, South (5650) | 1 | 520 | 72.9K | Aug 2008 – Jun 2019 |
| Johnston G-2-195889 | Hughes, Dan A. Company | Fortitude (CK MTN 4650) | 1 | 519 | 52.2K | Jun 2003 – Apr 2004 |
| Dougherty Properties -B- O-2-8796 | Hughes, Dan A. Company | Dougherty Ranch (10350) | 1 | 517 | 879 | May 2003 – Aug 2004 |
| Carpenter G-2-283598 | Trailblazer Oil & Gas LLC | Beeville, North (Yegua 4900) | 1 | 515 | 3.87K | Dec 2017 – May 2019 |
| O'Brien G-2-240501 | Anderson Oil Ltd. | Blanconia (4450) | 1 | 515 | 184K | Sep 2008 – Feb 2022 |
| Ray, George A. O-2-9248 | XTO Energy Inc. | Tulsita (Wilcox) | 1 | 510 | 2 | May 2008 – Jan 2010 |
| Carlyon Gas Unit 1 G-2-258598 | Repsol Oil & Gas USA, LLC | Sugarkane (Eagle Ford) | 1 | 510 | 319K | Jul 2010 – Aug 2024 |
| Basinger, C. W. O-2-411 | Dartex Energy Corporation | Dirks | 3 | 507 | 3.15K | Feb 1993 – Aug 2008 |
| Collier G-2-257064 | Trailblazer Oil & Gas LLC | Beeville, North (Hockley) | 1 | 507 | 282K | May 2010 – Jan 2025 |
| Midway G-2-170268 | Great Texas Crude Inc. | Tynan, East (Frio 4800) | 1 | 500 | 583K | Jul 1998 – Sep 2010 |
| Davis, Nellie S. et Al G-2-190799 | Staples, James W. Prod. Co. | San Domingo (Pettus) | 1 | 491 | 139K | Jun 2002 – Apr 2005 |
| Ray-Wilcox Unit Campbell G-2-155608 | Wagner Oil Company | Ray-Wilcox (Luling) | 1 | 488 | 27K | Sep 1995 – Aug 1996 |
| Holzmark G-2-231492 | Trident Corporation | Holzmark, E. (Slick) | 1 | 488 | 48.5K | Apr 2007 – Oct 2010 |
| Bridge G-2-144179 | Esenjay Petroleum Corp. | Normanna (Lwr. 1ST Reagan) | 1 | 470 | 283K | by Jan 1993 – Jul 1995 |
| Malone -A- G-2-262028 | T-C Oil Company, LLC | Medio Creek (4100) | 1 | 464 | 1.14M | Aug 2011 – Jan 2026 |
| Edler, J. B. G-2-266742 | Welder Exploration & Prod., Inc. | Yougeen (Yegua 5400) | 1 | 462 | 63.4K | Nov 2011 – Jul 2013 |
| Woods, J.W. O-2-6259 | Staples, Tommy Oil Co. | Five Oaks (3150) | 1 | 458 | 43 | by Jan 1993 – Oct 1995 |
| Barnhart G-2-172735 | Corenergy Operating Group, LLC | Fred Long (Hockley 3850) | 1 | 458 | 16.7K | Oct 1998 – Mar 1999 |
| Dugat, Lena et Al G-2-118079 | Stark Petroleum | Cosden, West (Vicksburg, Upper) | 1 | 457 | 10.9K | by Jan 1993 – Jun 1994 |
| Brooks Trust No. 2 G-2-242784 | Dirks Petroleum Company | Cadiz (Queen City) | 1 | 452 | 33.3K | Apr 2008 – Jun 2013 |
| Wtu Hall G-2-164698 | West Tuleta Operating Corp. | Tuleta, West (Wilcox Mid 9100) | 1 | 446 | 24.9K | Aug 1997 – Apr 1998 |
| Milagros G-2-250430 | Mego Resources, LLC | Medio Creek (4300) | 1 | 440 | 330K | May 2009 – Jun 2013 |
| B. U.-E, Ingram G-2-99741 | Legend Natural Gas II, LP | Burnell (Slick) | 1 | 431 | 60K | by Jan 1993 – Apr 1993 |
| N.P.U.-Ray G-2-137890 | Pennzoil Exploration & Prod. Co. | Tulsita-Wilcox (7490) | 1 | 431 | 39.3K | by Jan 1993 – Jan 1994 |
| Neuhaus-Grissom G-2-230799 | Neuhaus, V. F. Properties, Inc. | Caesar, South (5650) | 1 | 431 | 2.42K | Aug 2007 – Jun 2008 |
| C.E. Heard "B" G-2-230335 | Lakeshore Operating, LLC | Heard Ranch (4400) | 1 | 428 | 569K | Mar 2007 – Feb 2020 |
| Holzmark G-2-279009 | Enco Exploration Company | Holzmark (Pettus 4150) | 1 | 425 | 81.9K | Jan 2015 – May 2016 |
| Edler, J.B. G-2-262719 | Welderxp Ltd. | Yougeen (Hockley 4500) | 1 | 418 | 108K | May 2011 – Aug 2026 |
| Thomson-Barrow Corp. C G-2-166200 | C & E Operating, Inc. | Laura Thomson (4850) | 1 | 417 | 109K | Dec 1997 – Jul 2003 |
| Heard, C. E. "B" G-2-237033 | Milagro Exploration, LLC | Heard Ranch (4400) | 1 | 413 | 654K | Sep 2007 – May 2013 |
| O'Brien Ranch G-2-225504 | Welderxp Ltd. | Murphy Sisters (Frio 3600) | 1 | 411 | 859K | Jul 2007 – Dec 2018 |
| Bast, C. H. - Mineral Unit G-2-70765 | Rincon Petroleum Corporation | Mineral (Mackhank, Lo.) | 1 | 406 | 40.5K | by Jan 1993 – Jan 2006 |
| Brown C O-2-11270 | Headwaters Energy Partners, LLC | Norbee, S.E. (Hockley) | 1 | 404 | 1.17K | Mar 2016 – Feb 2018 |
| Wtu Hall G-2-171876 | West Tuleta Operating Corp. | Tuleta, West (Slick-Wilcox 7500) | 1 | 401 | 138K | Nov 1998 – Jun 2010 |
| Npu (Ray -4 ) G-2-84417 | Paleo Oil Company LLC | Tulsita-Wilcox ( 6800 Reklaw) | 1 | 400 | 105K | by Jan 1993 – Jul 2026 |