| Robertson State Unit 2-7 G-10-290703 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 400K | 1.14M | Dec 2015 – Aug 2026 |
| Robertson G-2-192291 | Merit Energy Company only | Speaks (16250 Wilcox) | Lavaca | 1 | 79.8K | 4.25M | Nov 2002 – Aug 2026 |
| Robertson, Joe G-13-187396 | BKM Production only | Sherman (Ordivician 9,450) | Grayson | 1 | 65.4K | 1.28M | Dec 2001 – Aug 2026 |
| Robertson G-2-191230 | Merit Energy Company only | Speaks (12700 Wilcox) | Lavaca | 1 | 59K | 4.09M | Feb 2002 – Oct 2022 |
| Robertson Hill Ranch C G-13-275758 | Willowbend Investments, Inc. only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 54K | 916K | Jul 2008 – Mar 2022 |
| Robertson Hill Ranch B G-13-277362 | Willowbend Investments, Inc. only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 42.9K | 993K | Oct 2008 – Jun 2015 |
| Robertson, George G-6-282410 | Valence Operating Company only | Beckville (Cotton Valley) | Harrison | 1 | 36K | 4.22M | Feb 2017 – Aug 2026 |
| Robertson, George G-6-263910 | Valence Operating Company only | Carthage (Haynesville Shale) | Harrison | 1 | 35.4K | 3.06M | Apr 2011 – Aug 2026 |
| Robertson Hill Ranch C G-13-277372 | Willowbend Investments, Inc. only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 33.5K | 750K | Jul 2008 – Mar 2022 |
| Robertson Hill Ranch B G-13-277388 | Willowbend Investments, Inc. only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 30K | 1.19M | Oct 2008 – Mar 2022 |
| Robertson G-3-258148 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 27.4K | 71.6K | Aug 2010 – Oct 2025 |
| Robertson Hill Ranch B G-13-277358 | Willowbend Investments, Inc. only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 26.8K | 413K | Oct 2008 – Mar 2022 |
| Robertson Hill Ranch G-13-238820 | Willowbend Investments, Inc. only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 26.4K | 1.08M | May 2008 – Mar 2022 |
| Robertson G-4-223633 | Reef Exploration, L.P. only | Agua Dulce (Vicksburg Consl.) | Nueces | 1 | 24.9K | 1.16M | Feb 2007 – Jun 2013 |
| Robertson Hill Ranch G-13-275635 | Willowbend Investments, Inc. only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 24.9K | 248K | Oct 2008 – Aug 2017 |
| Robertson Hill Ranch G-13-275632 | Willowbend Investments, Inc. only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 15.2K | 238K | Mar 2008 – Mar 2022 |
| Cities Service et Al G-10-124211 | Robertson Resources, Inc. only | Putnam (Wichita-Albany) | Pecos | 1 | 13K | 2.88M | by Jan 1993 – Jun 2026 |
| Robertson Gas Unit G-4-200691 | Dewbre Petroleum Corporation only | Shepherd (L-2) | Hidalgo | 1 | 9.83K | 1.39M | Mar 2004 – Sep 2008 |
| Robertson, Omie Gas Unit 1 G-6-182876 | Valence Operating Company only | Oak Hill (Cotton Valley) | Rusk | 1 | 7.38K | 1.19M | Apr 2001 – Aug 2026 |
| Robertson, W. B. Jr. G-9-180923 | Red Stag Operating, LLC only | Ozona (Canyon Sand) | Crockett | 1 | 7.36K | 1.34M | Dec 2000 – Aug 2026 |
| Robertson-Deats G-13-192208 | Great American Resources Inc. only | Lost Valley (Marble Falls) | Jack | 1 | 7.15K | 54.2K | Sep 2002 – May 2017 |
| Cities Service et Al G-10-79902 | Robertson Resources, Inc. only | Putnam (Wolfcamp) | Pecos | 1 | 6.73K | 2.94M | by Jan 1993 – Jun 2026 |
| Robertson, Omie Gas Unit 1 G-6-206236 | Valence Operating Company only | Oak Hill (Cotton Valley) | Rusk | 1 | 6.37K | 841K | Nov 2004 – Aug 2026 |
| Robertson "5A" G-9-210019 | Scout Energy Management LLC only | Ozona (Canyon Sand) | Crockett | 1 | 6.04K | 166K | Apr 2005 – Aug 2026 |
| Robertson, W. B. Jr. G-9-183951 | Red Stag Operating, LLC only | Ozona (Canyon Sand) | Crockett | 1 | 5.36K | 766K | Jun 2001 – Aug 2026 |
| Robertson Hill Ranch C G-13-277371 | Willowbend Investments, Inc. only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 5.11K | 143K | Jul 2008 – Mar 2022 |
| Robertson, W. B. Jr. G-9-185147 | Red Stag Operating, LLC only | Ozona (Canyon Sand) | Crockett | 1 | 4.27K | 733K | Jul 2001 – Aug 2026 |
| Robertson "5" G-9-129481 | Scout Energy Management LLC only | Ozona (Canyon Sand) | Crockett | 1 | 3.96K | 406K | by Jan 1993 – Aug 2026 |
| Robertson, Pearl G-8-198911 | Seely Oil Company only | Wilena (Duffer | Stephens | 1 | 3.84K | 403K | Dec 2002 – Jan 2024 |
| Robertson, Omie Gas Unit 1 G-6-243191 | Valence Operating Company only | Oak Hill (Cotton Valley) | Rusk | 1 | 3.84K | 1.16M | Aug 2008 – Aug 2026 |
| Robertson, W. B. Jr. G-9-183949 | Red Stag Operating, LLC only | Ozona (Canyon Sand) | Crockett | 1 | 3.82K | 770K | Jun 2001 – Aug 2026 |
| Robertson, George G-6-214329 | Valence Operating Company only | Beckville (Cotton Valley) | Harrison | 1 | 3.6K | 331K | Jul 2005 – Jul 2022 |
| Robertson "4" G-9-197144 | Scout Energy Management LLC only | Ozona (Canyon Sand) | Crockett | 1 | 3.54K | 183K | Jun 2003 – Aug 2026 |
| Robertson, Omie Gas Unit 1 G-6-242623 | Valence Operating Company only | Oak Hill (Cotton Valley) | Rusk | 1 | 3.48K | 790K | Aug 2008 – Aug 2026 |
| Robertson, W. T. G-3-153021 | Houston Hydrocarbons, Inc. (A) only | Sugar Valley (Boutte 8550) | Matagorda | 1 | 3.28K | 182K | Feb 1995 – Jun 1997 |
| Robertson, Omie Gas Unit 1 G-6-242972 | Valence Operating Company only | Oak Hill (Cotton Valley) | Rusk | 1 | 3.18K | 1.02M | Jul 2008 – Aug 2026 |
| Robertson, Odessa G-13-114601 | Arrowhead Productions, LP only | Jack County Regular (Gas) | Jack | 1 | 3.11K | 91.8K | Feb 1993 – Aug 2015 |
| Robertson G-2-239493 | Gapp Oil & Gas, LLC only | Speaks, NW. (Wilcox 12,800) | Lavaca | 1 | 3.06K | 550K | May 2008 – Oct 2016 |
| Robertson, J. D. C G-9-145908 | Compass Operating, L.L.C. only | Susan Peak (Strawn, Upper Gas) | Tom Green | 1 | 2.81K | 99.8K | Jun 1993 – Nov 2012 |
| Robertson, Omie Gas Unit 1 G-6-92755 | Valence Operating Company only | Oak Hill (Cotton Valley) | Rusk | 1 | 2.57K | 487K | by Jan 1993 – Feb 2023 |
| Sansone-Robertson (SA) G-13-265918 | Formentera Operations LLC only | Newark, East (Barnett Shale) | Parker | 1 | 2.5K | 2.97M | Apr 2012 – Aug 2026 |
| Robertson, W. B. Jr. G-9-183947 | DJH Oil & Gas LLC only | Ozona (Canyon Sand) | Crockett | 1 | 2.32K | 471K | May 2001 – Jul 2022 |
| Robertson G-2-192506 | El Paso E & P Company, L. P. only | Speaks (12700 Wilcox) | Lavaca | 1 | 2.24K | 450K | Apr 2002 – Apr 2007 |
| Robertson, W. T. G-3-149656 | Houston Hydrocarbons, Inc. (A) only | Sugar Valley (Ammo 8590) | Matagorda | 1 | 2.21K | 46.6K | May 1994 – Apr 1995 |
| Robertson, Byrdie G-6-183207 | Texas, Les & Co. only | Wolf Creek (Pettit) | Anderson | 1 | 2.16K | 131K | Apr 2001 – Jul 2016 |
| Robertson, George G-6-87532 | Valence Operating Company only | Beckville (Cotton Valley) | Harrison | 1 | 2.16K | 209K | by Jan 1993 – Dec 2016 |
| Robertson Hill Ranch B G-13-277370 | Willowbend Investments, Inc. only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 2.03K | 42.4K | Oct 2008 – Jan 2016 |
| Robertson -F- G-2-164665 | XTO Energy Inc. only | Speaks, S.W. (5800) | Lavaca | 1 | 1.73K | 289K | Jul 1997 – Oct 2009 |
| Robertson "5" G-9-114089 | Scout Energy Management LLC only | Ozona (Canyon Sand) | Crockett | 1 | 1.49K | 170K | by Jan 1993 – Aug 2026 |
| Robertson G-2-185705 | Merit Energy Company only | Speaks (12700 Wilcox) | Lavaca | 1 | 1.46K | 3.92M | Jun 2001 – Mar 2016 |