| Puckett "A" O-6-11537 | Blackwell Exp & Development, LLC only | Neuhoff (Woodbine) | Wood | 2 | 976K | 648K | Jan 1993 – Jun 2017 |
| Blackwell O-9-17165 | COG Operating LLC only | Pegasus (Consolidated) | Upton | 8 | 377K | 1.61M | May 2010 – Apr 2026 |
| Blackwell A G-2-263809 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 310K | 2.33M | Oct 2011 – Feb 2026 |
| Blackwell A G-2-281943 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 309K | 2.25M | Jun 2014 – Feb 2026 |
| Blackwell A G-2-281939 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 290K | 2.11M | Jun 2014 – Jan 2026 |
| Blackwell A G-2-281904 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 283K | 1.53M | Sep 2013 – Feb 2026 |
| Whiteaker, C.M. O-8-26548 | Unit Petroleum Company only | Blackwell, North (Ellenburger) | Nolan | 6 | 283K | 86.6K | Jan 1993 – Oct 2005 |
| Blackwell A G-2-281908 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 278K | 1.8M | Feb 2014 – Apr 2026 |
| Blackwell A-Oehlke a SA 3 G-2-298451 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 274K | 2.19M | Feb 2025 – Apr 2026 |
| WA Blackwell-MCC-BLK 2 (SA) B7 G-2-295523 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 265K | 2.31M | Feb 2024 – Apr 2026 |
| Blackwell A G-2-282035 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 261K | 1.55M | Sep 2013 – Feb 2026 |
| Vickery, W. N. O-6-10853 | Blackwell Exp & Development, LLC only | Neuhoff (Woodbine) | Wood | 1 | 256K | 209K | Jan 1993 – Mar 2020 |
| Blackwell-E-R-E (SA) F4 G-2-295758 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 246K | 2.33M | May 2023 – Apr 2026 |
| Blackwell Gas Unit 2 G-2-268459 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 242K | 2.27M | Jul 2012 – Sep 2024 |
| WA Blackwell-MCC-Keach (SA) B11 G-2-295465 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 242K | 2.92M | Feb 2024 – Apr 2026 |
| Blackwell-E-R-E (SA) F5 G-2-295759 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 239K | 3.57M | May 2023 – Apr 2026 |
| WA Blackwell-MCC (SA) B10 G-2-295416 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 237K | 2.03M | Feb 2024 – Apr 2026 |
| Blackwell A G-2-281910 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 237K | 1.65M | Jun 2014 – Jan 2026 |
| Blackwell Gas Unit 1 G-2-268219 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 235K | 3.08M | May 2012 – Apr 2026 |
| McClanahan-Blackwell 2 (SA) B4 G-2-287126 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 226K | 3.53M | Jan 2019 – Apr 2026 |
| Blackwell Gas Unit 1 G-2-268541 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 224K | 3.09M | May 2012 – Feb 2023 |
| WA Blackwell-MCC-Keach (SA) B12 G-2-295468 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 220K | 2.48M | Feb 2024 – Apr 2026 |
| Blackwell Gas Unit 2 G-2-274904 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 209K | 2.52M | Apr 2014 – Apr 2026 |
| Blackwell-Eyhorn-Ruppert (SA) F1 G-2-295564 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 208K | 2.03M | May 2023 – Apr 2026 |
| Blackwell O-9-15647 | COG Operating LLC only | Spraberry (Trend Area) | Upton | 5 | 207K | 728K | Dec 2004 – Apr 2010 |
| Blackwell A G-2-282080 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 205K | 1.29M | Sep 2013 – Feb 2026 |
| Blackwell-E-R-E (SA) F3 G-2-295757 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 202K | 3.47M | May 2023 – Apr 2026 |
| Blackwell A-Oehlke a SA 2 G-2-298450 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 198K | 1.76M | Feb 2025 – Apr 2026 |
| Blackwell-Eyhorn-Ruppert (SA) F2 G-2-295938 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 194K | 3.69M | May 2023 – Apr 2026 |
| WA Blackwell Gas Unit 1 G-2-266169 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 194K | 1.55M | May 2012 – Apr 2026 |
| McClanahan-Blackwell 2 (SA) B5 G-2-287081 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 193K | 2.33M | Dec 2018 – Apr 2026 |
| Blackwell Gas Unit 2 G-2-272516 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 190K | 1.81M | Apr 2014 – Apr 2026 |
| WA Blackwell-MCC-BLK 2 (SA) B8 G-2-295396 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 178K | 2.02M | Feb 2024 – Apr 2026 |
| McClanahan-Blackwell 2 (SA) B6 G-2-286599 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 173K | 3.21M | Dec 2018 – Apr 2026 |
| Blackwell Gas Unit 2 G-2-265486 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 160K | 1.95M | Aug 2011 – Jan 2022 |
| WA Blackwell Gas Unit 1 G-2-273093 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 146K | 1.29M | Jun 2014 – Apr 2026 |
| Big Mineral Creek (UV Sand) Unit O-13-30897 | Blackwell BMC, LLC only | Big Mineral Creek (Consolidated) | Grayson | 21 | 127K | 315K | Jan 2008 – Sep 2010 |
| Blackwell A-Oehlke a SA 4 G-2-300856 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 120K | 1.05M | Jan 2026 – Apr 2026 |
| Blackwell A-Dlugosch a SA 7 G-2-301222 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 109K | 927K | Jan 2026 – Apr 2026 |
| Blackwell A-Dlugosch a SA 8 G-2-301127 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 108K | 996K | Jan 2026 – Apr 2026 |
| Blackwell A-Dlugosch a SA 9 G-2-301244 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 106K | 1.09M | Jan 2026 – Apr 2026 |
| Blackwell, S. M. O-1-4847 | Bastrop Energy Group only | Luling-Branyon | Caldwell | 28 | 101K | 73.7K | Jan 1993 – Apr 2026 |
| Blackwell-Eyhorn (SA) B8 G-2-283974 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 99.6K | 1.06M | Jul 2017 – Oct 2023 |
| Blackwell-Texaco O-8-27010 | Sojourner Drilling Corporation only | El Rey (Flippen) | Taylor | 3 | 98.7K | 13 | Sep 1993 – Apr 2026 |
| Blackwell Trust Gas Unit G-2-217905 | Mosley Oil &gas Inc only | Friar Ranch, S. (Consolidated) | De Witt | 1 | 98.6K | 2.58M | Nov 2005 – Mar 2019 |
| Craig, Floyd Estate O-8-17944 | Cholla Petroleum, Inc. only | Blackwell, N. (Jenn. Lime) | Nolan | 2 | 95.7K | 333K | Jan 1993 – Aug 2015 |
| Blackwell O-6-12972 | Cinron Energy, LLC only | Fulton-Forgotson (Pettit) | Smith | 1 | 95K | 415K | Jan 1993 – Apr 2026 |
| Blackwell A-Oehlke a SA 5 G-2-300928 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 93.1K | 879K | Jan 2026 – Apr 2026 |
| Blackwell-Eyhorn (SA) B7 G-2-284087 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 86.9K | 899K | Jul 2017 – Mar 2025 |
| Moore '30' O-8-29254 | Vanco Oil & Gas Corp. only | Blackwell, North (Ellenburger) | Nolan | 3 | 86.1K | 0 | May 2003 – May 2017 |