| Old O-3-652 | Elliott Oil Company, L.P. only | Chocolate Bayou ( Alibel) | Brazoria | 2 | 617K | 750K | by Jan 1993 – Jun 2025 |
| Black Stone Ivory G-3-228848 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou (11050) | Brazoria | 1 | 588K | 3.85M | May 2007 – Jun 2026 |
| Houston "M" O-3-23056 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou, N. (Schenck) | Brazoria | 1 | 232K | 460K | Jun 1996 – Jan 2025 |
| Borsodi O-3-11004 | Elliott Oil Company, L.P. only | Chocolate Bayou ( Frio Upper) | Brazoria | 1 | 232K | 57.1K | by Jan 1993 – Oct 2025 |
| Smith, T. L. O-3-1124 | Deguello Operating LLC only | Damon Mound, East (FLT BLK 1) | Brazoria | 20 | 218K | 76 | by Jan 1993 – Dec 2023 |
| Lewellyn, Nellie O-3-10394 | Denbury Onshore, LLC only | Manvel (F.B. II, Oligocene) | Brazoria | 2 | 213K | 133K | by Jan 1993 – Aug 2015 |
| Cozby G-3-251302 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou ( Ho.fms. UP) | Brazoria | 1 | 143K | 393K | Nov 2008 – Jun 2024 |
| Farms, I. P. O-3-21014 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou, S. (10700 Frio) | Brazoria | 2 | 132K | 491K | by Jan 1993 – Jun 2024 |
| IP Farms "PG" G-3-142923 | Elliott Oil & Gas Operating Co. only | Pegasus Gulf Coast (Big Gas Sd.) | Brazoria | 1 | 116K | 1.31M | by Jan 1993 – May 2021 |
| McKelvy O-3-21726 | Elliott Oil Company, L.P. only | Chocolate Bayou ( Frio Upper) | Brazoria | 1 | 107K | 149K | by Jan 1993 – Dec 2024 |
| Blackstone Hlavinka G-3-282220 | Elliott Oil & Gas Operating Co. only | Persimmon Bayou (Grubbs) | Brazoria | 1 | 107K | 1.03M | Dec 2016 – Apr 2024 |
| I. P. Farms 366 Ac. Gas Unit G-3-167011 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou, S. (LHF-Frio) | Brazoria | 1 | 102K | 4.48M | Dec 1997 – Aug 2002 |
| I. P. Farms 366 Ac. Gas Unit G-3-204713 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou, S. (Frio 9900) | Brazoria | 1 | 102K | 259K | Apr 2004 – Jan 2025 |
| Price, J. E. O-3-24473 | Elliott Oil & Gas Operating Co. only | Arcola | Brazoria | 1 | 101K | 231K | Nov 2003 – Mar 2021 |
| Harris, W.C. et Al O-3-102 | Elliott Oil & Gas Operating Co. only | Arcola | Brazoria | 1 | 99.7K | 77.8K | by Jan 1993 – Jun 2024 |
| Thess O-3-25706 | Elliott Oil Company, L.P. only | Chocolate Bayou ( Frio Upper) | Brazoria | 1 | 98K | 66.5K | May 2010 – Jan 2025 |
| Black Stone Ivory G-3-283536 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou (11050) | Brazoria | 1 | 97.5K | 1.02M | Aug 2017 – Jan 2025 |
| Blackstone Hlavinka G-3-282213 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou (11050) | Brazoria | 1 | 80.2K | 612K | Dec 2016 – Aug 2026 |
| Farms, I. P. G-3-181539 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou, N. (10400) | Brazoria | 1 | 79.2K | 1.96M | Dec 2000 – Oct 2023 |
| Farms, I. P. PG O-3-23813 | Elliott Oil & Gas Operating Co. only | Pegasus Gulf Coast (Grubbs) | Brazoria | 1 | 76.3K | 596K | Apr 2000 – Apr 2025 |
| Schenck G-3-283765 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou (Frio, First) | Brazoria | 1 | 73K | 147K | Feb 2018 – May 2026 |
| Grubbs O-3-22686 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou (Frio, First) | Brazoria | 1 | 71.6K | 48.7K | Apr 1995 – Jul 2024 |
| Blackstone Hlavinka G-3-282363 | Elliott Oil & Gas Operating Co. only | Persimmon Bayou (Grubbs) | Brazoria | 1 | 67.3K | 676K | Jun 2017 – Jul 2026 |
| Black Stone Ivory G-3-206987 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou,n.(andrau Stray) | Brazoria | 1 | 61.3K | 887K | Dec 2004 – May 2026 |
| Tri-Wallinder O-3-25598 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou ( Frio Upper) | Brazoria | 1 | 60.4K | 37.3K | Oct 2007 – Jul 2026 |
| Price, J.E. O-3-19014 | Elliott Oil & Gas Operating Co. only | Arcola (7400 Frio) | Brazoria | 1 | 60K | 48.3K | by Jan 1993 – May 2021 |
| Worrell-Northrup O-3-21103 | Proline Energy Resources Inc only | Chenango, North (Frio 10500) | Brazoria | 1 | 58.9K | 12.2K | by Jan 1993 – Dec 2019 |
| Marmion O-3-25521 | Well-Co Solutions, LLC only | Old Ocean, NE. (8800 Frio) | Brazoria | 1 | 53.9K | 20.3K | Dec 2006 – Sep 2020 |
| Price, J. O-3-12443 | Elliott Oil & Gas Operating Co. only | Arcola | Brazoria | 2 | 53K | 107K | Apr 1996 – Mar 2021 |
| Kelly O-3-20255 | Proline Energy Resources Inc only | Chenango (9100) | Brazoria | 1 | 52.2K | 36.4K | by Jan 1993 – Dec 2017 |
| Cozby O-3-22408 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou ( Frio Upper) | Brazoria | 1 | 51K | 98.1K | Apr 1994 – Jul 2026 |
| Farms, I.P. "C" G-3-161224 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou,n.(andrau Stray) | Brazoria | 1 | 44.7K | 2.63M | Jun 1996 – Oct 2023 |
| David Young O-3-27872 | Elliott Oil Company, L.P. only | Chocolate Bayou, S. (Frio 9900) | Brazoria | 2 | 42.4K | 0 | Mar 2021 – Aug 2025 |
| Worrell, R. J., Comm. O-3-8341 | Proline Energy Resources Inc only | Chenango (8500 -B- Sd.) | Brazoria | 1 | 41.9K | 10.8K | by Jan 1993 – Dec 2018 |
| Witmer-Price O-3-24735 | Elliott Oil & Gas Operating Co. only | Arcola | Brazoria | 1 | 41.2K | 192K | Feb 2005 – Mar 2021 |
| Andrau O-3-23174 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou ( Ho.fms. UP) | Brazoria | 1 | 40.8K | 13.5K | Feb 1997 – Jun 2004 |
| I. P. Farms PA G-3-158232 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou, N. (Andrau) | Brazoria | 1 | 38.7K | 2.96M | Mar 1996 – Jan 2025 |
| Wisdom, Belle Estate O-3-3136 | Harrison Interests, Ltd. only | Nash Dome | Brazoria | 20 | 34.8K | 19 | by Jan 1993 – Jun 2003 |
| Blackstone-Hlavinka O-3-27927 | Elliott Oil & Gas Operating Co. only | Pegasus Gulf Coast (Grubbs) | Brazoria | 1 | 33.5K | 340K | Apr 2022 – Jul 2026 |
| Houston "A" O-3-25657 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou ( Ho.fms. UP) | Brazoria | 1 | 33K | 20.3K | Jul 2010 – Jan 2025 |
| Benard River Land Development G-3-30584 | Sandel Operating Company only | Old Ocean (Campbell) | Brazoria | 1 | 31.4K | 4.72M | by Jan 1993 – Dec 2021 |
| Mellinger O-3-20439 | Sideline Oil & Gas, L.P. only | Danbury Dome, N. (Marg Frio) | Brazoria | 1 | 27.6K | 20 | by Jan 1993 – May 2016 |
| Old Ocean Unit G-3-214089 | Hilcorp Energy Company only | Old Ocean (Campbell) | Brazoria | 1 | 27K | 2.41M | Jan 2006 – Aug 2015 |
| Huffman, V. S. O-3-23937 | Elliott Oil & Gas Operating Co. only | Arcola (7320) | Brazoria | 1 | 22.5K | 62.6K | Sep 2000 – Sep 2021 |
| Houston "A" G-3-176832 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou ( Frio P) | Brazoria | 1 | 22K | 1.66M | Mar 2000 – Jun 2010 |
| Black Stone Ivory G-3-211194 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou, S. (Schenck) | Brazoria | 1 | 21.6K | 1.44M | Aug 2005 – Jul 2021 |
| Old Ocean Unit G-3-133862 | Hilcorp Energy Company only | Old Ocean (Campbell) | Brazoria | 1 | 21.1K | 2.07M | by Jan 1993 – Jul 2003 |
| Schenck G-3-269946 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou ( Wieting Up.) | Brazoria | 1 | 21K | 1.05M | Jan 2013 – Aug 2026 |
| Tri-Wallinder G-3-140615 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou, N. (Andrau) | Brazoria | 1 | 18.9K | 2.51M | by Jan 1993 – Sep 2007 |
| Price, Witmer O-3-15451 | Elliott Oil & Gas Operating Co. only | Arcola (7400 Frio) | Brazoria | 1 | 18.8K | 12.3K | by Jan 1993 – Feb 1999 |