| Texas State Lease 41338 G-4-271199 | White Marlin Operating Co, LLC only | Mstg Isl BLK889(MARG TEXUP11000) | Mustang IS-SB | 1 | 111K | 1.1M | Aug 2013 – Dec 2017 |
| TSL 41338 G-4-256537 | White Marlin Operating Co, LLC only | Mstg Isl BLK889(MARG TEXLO11000) | Mustang IS-SB | 1 | 76.2K | 3.83M | Mar 2010 – Apr 2013 |
| Savage, H.S. et Al G-3-90149 | Hilcorp Energy Company only | Rugeley, SW (13300 Fault BLK B) | Matagorda | 1 | 69.7K | 2.43M | Jan 1993 – Apr 2026 |
| TSL 41338 G-4-217015 | White Marlin Operating Co, LLC only | Mstg. Isl. BLK 889 (Frio 12400) | Mustang IS-SB | 1 | 62.6K | 4.61M | May 2006 – Feb 2010 |
| Highlander Gas Unit 2 G-3-175390 | Sanchez Oil & Gas Corporation only | De Zavala (Yegua 11330) | Harris | 1 | 61.8K | 11.1M | Sep 1999 – Oct 2003 |
| Texas State Lease 41338 G-4-53798 | White Marlin Operating Co, LLC only | Mstg. Isl. BLK 889(MARG Frio,lo) | Mustang IS-SB | 1 | 59.4K | 3.25M | Sep 1995 – Jul 2014 |
| S/L 41338 G-4-149417 | White Marlin Operating Co, LLC only | Mstg. Isl. BLK 889 (Frio 12400) | Mustang IS-SB | 1 | 48K | 507K | May 1994 – Feb 1998 |
| Jackson G-3-279195 | Hilcorp Energy Company only | Willow Slough (13300) | Chambers | 1 | 38.4K | 2.62M | Feb 2015 – Nov 2021 |
| Texas State Lease 41338 G-4-144507 | White Marlin Operating Co, LLC only | Mstg. Isl. BLK 889 (Frio N) | Mustang IS-SB | 1 | 37.2K | 1.74M | Jan 1993 – Mar 2009 |
| Mathers 133 G-14-276063 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 32.1K | 624K | Jul 2014 – Mar 2026 |
| Shelby 133 HMH G-14-270966 | Unbridled Resources, LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 27.4K | 318K | Jun 2013 – Apr 2026 |
| Highlander Gas Unit 2 G-3-184846 | Sanchez Oil & Gas Corporation only | De Zavala (Yegua 11330) | Harris | 1 | 20.6K | 3.9M | Jul 2001 – Aug 2003 |
| Mathers 133 G-14-276188 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 15.7K | 267K | Jul 2014 – May 2025 |
| Wood, Valda G-3-179457 | Enpower Resources Inc. only | Dean Lake (Wilcox 13300) | Montgomery | 1 | 12.4K | 836K | Jan 1999 – Aug 2025 |
| S/L 41338 G-4-147696 | White Marlin Operating Co, LLC only | Mstg. Isl. BLK 883-S (11700) | Mustang IS-SB | 1 | 8.51K | 76.5K | Dec 1993 – Apr 1994 |
| Owen Briscoe 1133 G-4-269033 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 7.16K | 1.68M | May 2012 – Apr 2026 |
| Palafox-State 1335 G-4-272995 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 7.06K | 1.44M | Aug 2013 – Apr 2026 |
| Owen Briscoe 1133 G-4-268178 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 6.93K | 1.41M | Apr 2013 – Apr 2026 |
| Palafox 1335 G-4-274257 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 4.41K | 794K | Oct 2012 – Apr 2026 |
| Gibbs G-3-157755 | Gaither Petroleum Corporation only | Dean Lake (Wilcox 13300) | Montgomery | 1 | 3.62K | 313K | Feb 1996 – Feb 2016 |
| Bratton G-4-174671 | Rodessa Operating Company only | Oso Deep (Frio 13300) | Nueces | 1 | 3.3K | 144K | Mar 1999 – Jul 2003 |
| Kurk 1330 Unit G-13-133829 | Stovall Operating Co. only | Young County Regular (Gas) | Young | 1 | 3.29K | 473K | Jan 1993 – Apr 2026 |
| Hale 133 G-14-181570 | Highmark Energy Operating, LLC only | Hansford (Morrow, Upper) | Hansford | 1 | 3.24K | 976K | Jan 2001 – Apr 2026 |
| Smith-Mumme G.U. G-2-142235 | Hanson Production Company only | Segunda Chanca (13300) | Karnes | 1 | 1.16K | 1.17M | Jan 1993 – Aug 1995 |
| Palafox 1335 G-1-269442 | Lewis Petro Properties, Inc. only | Hawkville (Eagleford Shale) | Webb | 1 | 933 | 2.04M | Mar 2012 – Apr 2026 |
| Jean -133- G-14-120738 | Unbridled Resources, LLC only | Twitchell (Chester) | Ochiltree | 1 | 639 | 1.19M | Jan 1993 – Jul 2005 |
| Barrow Ranch G-3-169411 | Amrwr, LLC only | Willow Slough (13300) | Chambers | 1 | 549 | 59.1K | Dec 1997 – Dec 1997 |
| Courson Ranch 133 G-14-172198 | Latigo Petroleum, Inc. only | Alpar-Lips (Atoka) | Roberts | 1 | 544 | 79K | Jan 1999 – Nov 2004 |
| Jean 133 G-14-206712 | Unbridled Resources, LLC only | Witt Perryton (Morrow Upper) | Ochiltree | 1 | 399 | 501K | Sep 2004 – Sep 2014 |
| Anna Lee GU G-3-282765 | Hilcorp Energy Company only | Willow Slough (13300) | Chambers | 1 | 383 | 7.66K | May 2017 – May 2022 |
| Jean 133 G-14-213274 | Unbridled Resources, LLC only | Twitchell (Morrow) | Ochiltree | 1 | 355 | 540K | Aug 2005 – Nov 2025 |
| Owen Briscoe 1133 G-4-242202 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 339 | 574K | Jul 2008 – Apr 2026 |
| Owen Briscoe 1133 G-4-211544 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 177 | 287K | Jul 2005 – Jul 2024 |
| Owen Briscoe 1133 G-4-233193 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 134 | 180K | Oct 2007 – Apr 2026 |
| Owen Briscoe 1133 G-4-229372 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 104 | 161K | Jun 2007 – Apr 2026 |
| Owen Briscoe 1133 G-4-223754 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 46 | 158K | Oct 2006 – Apr 2026 |
| Owen Briscoe 1133 G-4-214747 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 46 | 263K | Oct 2005 – Nov 2025 |
| Stockton Gas Unit G-2-241167 | Gaither Petroleum Corporation only | Rea-Gol (13300 SD) | Goliad | 1 | 26 | 316K | Jan 2008 – Dec 2022 |
| Courson Ranch 133 G-14-214275 | Latigo Petroleum, LLC only | Alpar-Pearson (Brown Dolomite) | Roberts | 1 | 23 | 11.7K | Oct 2005 – Sep 2017 |
| Greene, C. J. G.U. 1 G-5-110789 | D.J. Oilfield Salvage Inc. only | Dunbar, Se.(smackover 13320) | Rains | 1 | 0 | 27 | Jan 1993 – Jan 1993 |
| Greene, C.J. G.U. 1 G-5-152868 | Continental Operating Co. only | Dunbar, Se.(smackover 13320) | Rains | 1 | 0 | 1.41M | Dec 1994 – Nov 2008 |
| Cauthorn, Dan "133" G-9-115424 | Smith Pipe of Abilene only | Shurley Ranch (Canyon) | Sutton | 1 | 0 | 1.67K | Jan 1993 – Feb 1995 |
| McElroy Ranch "133" G-9-296247 | TS Oil, LLC only | Spraberry (Trend Area) | Upton | 1 | 0 | 2.72K | Oct 2023 – Jun 2025 |
| McElroy Ranch "133" G-9-300812 | TS Oil, LLC only | Spraberry (Trend Area) | Upton | 1 | 0 | 5.8K | Sep 2025 – Apr 2026 |
| Goldston, W.L. et Al G-4-145013 | Wynn-Crosby Energy, Inc. only | Los Indios, W. (MF-133) | Hidalgo | 1 | 0 | 69.8K | Apr 1993 – Oct 1996 |
| Goldston, W.L. G-4-91140 | Dalen Resources Oil & Gas Co. only | Los Indios, W. (MF-133) | Hidalgo | 1 | 0 | 0 | — |
| Texas State Lease 41338 G-4-12261 | White Marlin Operating Co, LLC only | Mstg Isl BLK889(MARG TEXUP11000) | Mustang IS-SB | 1 | 0 | 0 | — |
| Magnolia G-3-228947 | Galloway Lone Star, L.L.C. only | Dean Lake (Wilcox 13300) | Montgomery | 1 | 0 | 0 | — |
| Schafter 133 G-14-197932 | Ricks Exploration, Inc. only | Texas Hugoton | Sherman | 1 | 0 | 0 | — |
| Highlander Gas Unit 4 G-3-198157 | Sanchez Oil & Gas Corporation only | De Zavala (Yegua 11330) | Harris | 1 | 0 | 0 | — |