| Exxon #5 O-3-18354 | Fort Apache Energy, Inc. | Double Bayou (Frio A) | 2 | 43.8K | 154K | by Jan 1993 – Mar 2011 |
| Miller, A.L. "B" O-3-22378 | Green Exploration Company | Alligator Bayou (12-D) | 1 | 43.2K | 43.9K | Apr 1994 – Aug 2015 |
| State Tract 6-7A O-3-26773 | Galveston Bay Operating Co LLC | Perelandra (Frio 13) | 1 | 43.2K | 45.8K | Dec 2014 – Jun 2021 |
| State Tract 199 G-3-253434 | Davis Petroleum Corp. | Red Fish Reef (Frio 15, Seg. C) | 1 | 42.8K | 670K | Sep 2009 – Dec 2012 |
| Rggs Land & Minerals G-3-206777 | Yuma E & P Company, Inc. | Beach City (Vksbg Gyro K) | 1 | 42.6K | 519K | Nov 2004 – Oct 2005 |
| Edmonds G-3-180714 | Samedan Oil Corporation | Double Bayou (Nodosaria) | 1 | 42.5K | 585K | Dec 2000 – Feb 2002 |
| Turner G-3-180545 | Samedan Oil Corporation | Double Bayou (8800) | 1 | 41.6K | 731K | Dec 2000 – May 2001 |
| Usx Hematite Unit #1 G-3-184008 | Carrizo Oil & Gas, Inc. | Hematite Sand (Vicksburg) | 1 | 40.8K | 916K | Jul 2001 – Mar 2003 |
| E.C. Kerley O-3-26070 | Sandpoint Texas LLC | Barbers Hill | 2 | 40.6K | 0 | May 2012 – Aug 2026 |
| South Mayes Oil Unit 3 O-3-23475 | Magnum Producing, LP | Mayes, South (Frio 15) | 2 | 40K | 162K | Feb 1998 – May 2001 |
| Broussard-Hebert a/C #1 O-3-18396 | Exxon Mobil Corporation | Anahuac (FB D-1, East, Frio 13) | 1 | 39.8K | 67.9K | by Jan 1993 – Jun 2000 |
| State Tract 37-A G-3-210780 | St. Mary Energy Company | Turtle Beach (Vicksburg) | 1 | 39.7K | 745K | Dec 2004 – Aug 2006 |
| Atkinson Island Unit G-3-213676 | Torrent Oil LLC | Atkinson Island (Cons.) | 1 | 39.4K | 980K | Nov 2005 – Mar 2014 |
| Hankamer Unit O-3-23737 | Bagley, Roy | Stowell (Miocene 6430) | 1 | 39.2K | 0 | Oct 1999 – Mar 2006 |
| State Tract 75 G-3-169708 | Vintage Petroleum, Inc. | Umbrella Point, SE. (F-18) | 1 | 39.1K | 4.6M | Jun 1998 – Sep 1999 |
| Weaver O-3-25370 | Gaither Petroleum Corporation | Hankamer | 1 | 39K | 0 | Jan 2009 – May 2014 |
| Wilburn "E" O-3-163 | Sandpoint Texas LLC | Barbers Hill | 5 | 38.9K | 20 | by Jan 1993 – Apr 2016 |
| Trinity Bay State Unit No. 1 O-3-8003 | Galveston Bay Operating Co LLC | Trinity Bay (Frio 5, East) | 4 | 38.9K | 72.2K | Feb 1994 – Feb 2002 |
| State Tract 132 Unit G-3-246895 | Davis Petroleum Corp. | Umbrella Point (F-18 Anomalina) | 1 | 38.6K | 1.38M | Feb 2009 – Jun 2010 |
| Jackson G-3-279195 | Hilcorp Energy Company | Willow Slough (13300) | 1 | 38.4K | 2.62M | Feb 2015 – Nov 2021 |
| State Tract 127 G-3-202095 | Erg Resources, L.L.C. | Atkinson Island (Frio) | 1 | 38.2K | 480K | Jun 2004 – Aug 2007 |
| Hebert & Broussard G-3-186758 | Kerr-McGee Oil & Gas Onshore LLC | Willow Slough (Nod. B-3) | 1 | 37.9K | 2.95M | Oct 2001 – Jul 2002 |
| State Tract 206 G-3-216134 | Layton Energy Inc. | Red Fish Reef, North (Frio 7920 | 1 | 37.9K | 511K | Mar 2005 – Nov 2010 |
| Boyles Unit O-3-24995 | Puls Operating Company | Seabreeze | 1 | 37.2K | 35 | May 2007 – Jul 2019 |
| Elm Bayou O-3-26785 | Hilcorp Energy Company | Wolfpack (Nod 3) | 1 | 37.2K | 106K | Oct 2014 – May 2020 |
| Baten-Williams O-3-24249 | Shoco Production LLC | Stowell (Crawford U-1) | 1 | 37K | 9.68K | Oct 2002 – Jul 2026 |
| State Tract 251 Unit O-3-26064 | Davis Petroleum Corp. | Vinceburg (Box Lox) | 1 | 36.1K | 160K | Aug 2012 – Nov 2012 |
| Acom, O. H. O-3-22946 | Gcows Operating LLC | Seabreeze | 1 | 36.1K | 132K | Apr 1996 – Aug 2024 |
| Middleton, Archie G-3-161451 | Denbury Onshore, LLC | Oyster Bayou | 1 | 36.1K | 1.58M | Dec 1996 – Jun 2010 |
| State Tract 251 Unit O-3-24177 | Davis Petroleum Corp. | Vinceburg (Vicksburg) | 1 | 35.5K | 422K | Mar 2001 – Dec 2002 |
| Barber, E. W., -D- O-3-181 | Sandpoint Texas LLC | Barbers Hill | 3 | 35.4K | 35 | by Jan 1993 – Jul 2026 |
| Rearwin, L. W. G-3-173995 | Aspect Resources LLC | Anahuac (Frio 8800) | 1 | 35K | 1.6M | Jun 1999 – Sep 2000 |
| State Tract 288 O-3-21644 | Shoreham Oil & Gas Company, Inc. | Red Fish Reef, SW. (F-15-D Sd.) | 1 | 34.2K | 99.4K | by Jan 1993 – Jun 2005 |
| Castro Unit No. 1 O-3-21395 | CBN Operating Corp. | Double Bayou (Frio A) | 2 | 34.1K | 42.7K | by Jan 1993 – Oct 1993 |
| Flewellen, E. H. O-3-9709 | Titan Rock E&P, LLC | Cotton Lake | 1 | 33.9K | 152 | by Jan 1993 – Sep 2020 |
| Rearwin, L. W. G-3-174087 | Aspect Resources LLC | Anahuac (Frio 8800) | 1 | 32.8K | 2.39M | Jul 1999 – Feb 2001 |
| Tytex Well No. 1 Gas Unit O-3-27921 | S & S Operating Company, Inc. | Double Bayou (Frio 14) | 1 | 32.3K | 2.05K | Sep 2019 – Aug 2026 |
| Trinity Bay State Unit No. 1 O-3-19317 | Galveston Bay Operating Co LLC | Trinity Bay, East (Frio 15) | 1 | 31.9K | 75.5K | by Jan 1993 – Dec 1998 |
| White, R. M. O-3-97 | Texas Petroleum Investment Co. | Anahuac | 12 | 31.8K | 36.8K | by Jan 1993 – Sep 2021 |
| HSR E. Cooper G-3-163152 | Elliott Oil Company, L.P. | Devillier (Vicksburg) | 1 | 31.2K | 1.17M | Apr 1997 – May 2002 |
| Willcox, G. C. O-3-21064 | Finley Resources, Inc. | Hankamer, SE. (Seg B Frio) | 1 | 31.2K | 17.3K | by Jan 1993 – Jun 2001 |
| White, William C. et Al G-3-150126 | Rutherford Oil Corporation | Willow Slough,n.(nodosaria 9500) | 1 | 29.9K | 819K | May 1994 – Nov 1999 |
| Crawford "A" G-3-180119 | EOG Resources, Inc. | Angelina (11,200) | 1 | 29.6K | 698K | Sep 2000 – Sep 2001 |
| Sterling Unit G-3-201106 | Carrizo Oil & Gas, Inc. | Hematite Sand (Vicksburg) | 1 | 29.1K | 587K | Apr 2004 – Jul 2007 |
| Miller, A.L. 'B' O-3-21548 | Wagner, Duer & Co. | Alligator Bayou (13-A) | 2 | 29K | 35K | by Jan 1993 – May 1995 |
| Hankamer, E. C. O-3-21187 | Puls, W. L. | Stowell (Miocene 6430) | 1 | 28.8K | 6.83K | by Jan 1993 – Sep 1998 |
| State Tract 75 G-3-163386 | Vintage Petroleum, Inc. | Umbrella Point (F-28) | 1 | 28.7K | 2.29M | Dec 1996 – May 1998 |
| Seabreeze Land Company G-3-169375 | Gcows Operating LLC | Seabreeze, N (Nodosaria Greater) | 1 | 28.4K | 2.56M | Jun 1998 – Aug 2024 |
| Colby-Claypool G-3-84495 | Kerr-McGee Oil & Gas Onshore LLC | Elwood (Vicksburg) | 1 | 28.2K | 2.36M | by Jan 1993 – Jul 2003 |
| RFR Frio 15 GU G-3-96910 | Galveston Bay Operating Co LLC | Red Fish Reef S. (Frio 15) | 1 | 27.9K | 473K | by Jan 1993 – Jun 2021 |