| Portland Gas Unit "D" G-4-233979 | Sulphur River Exploration, Inc. | Portland, N. (Commonwealth Serie | San Patricio | 1 | 205K | 3.42M | Mar 2008 – Aug 2026 |
| Ashford, H. Gas Unit G-6-72957 | Sulphur River Exploration, Inc. | Carbondale, N. (Smackover) | Bowie | 1 | 178K | 1M | by Jan 1993 – Aug 2026 |
| Indian Rock Gas Unit No. 8 G-6-142336 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 124K | 7.9M | by Jan 1993 – Aug 2026 |
| Indian Rock Gas Unit No. 1 G-6-141271 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 109K | 8.51M | by Jan 1993 – Mar 2026 |
| Portland Gas Unit "D" G-4-177359 | Sulphur River Exploration, Inc. | Portland, W. (F-6) | San Patricio | 1 | 106K | 987K | Apr 2000 – Aug 2026 |
| Indian Rock Gas Unit #7 G-6-142295 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 95.2K | 7.59M | by Jan 1993 – Aug 2026 |
| Indian Rock Gas Unit #5 G-6-142654 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 89.6K | 7.3M | by Jan 1993 – Feb 2026 |
| Indian Rock Gas Unit #5 G-6-141719 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 88K | 6.61M | by Jan 1993 – Mar 2021 |
| Indian Rock Gas Unit #5 G-6-143430 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 87.2K | 6.08M | by Jan 1993 – Aug 2026 |
| Indian Rock Gas Unit No. 8 G-6-144730 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 79.3K | 6.64M | Mar 1993 – May 2024 |
| Indian Rock Gas Unit 3 G-6-140964 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 78.4K | 7.06M | by Jan 1993 – Aug 2026 |
| Indian Rock Gas Unit 6 G-6-145050 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 71.7K | 5.78M | Mar 1993 – Aug 2026 |
| Indian Rock Gas Unit 3 G-6-145068 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 68.6K | 4.64M | Mar 1993 – Aug 2026 |
| Indian Rock Gas Unit #7 G-6-160980 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 66.4K | 6.98M | Nov 1996 – Aug 2026 |
| Indian Rock Gas Unit 6 G-6-160168 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 64.8K | 4.44M | Sep 1996 – Aug 2026 |
| Indian Rock Gas Unit #7 G-6-144870 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 64.8K | 6.3M | Mar 1993 – Aug 2026 |
| Indian Rock Gas Unit No. 1 G-6-144091 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 63.8K | 4.64M | by Jan 1993 – Aug 2026 |
| Indian Rock Gas Unit 3 G-6-144599 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 62.9K | 4.74M | Feb 1993 – May 2004 |
| Indian Rock Gas Unit No. 8 G-6-47471 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 62.3K | 4.97M | by Jan 1993 – Aug 2026 |
| Indian Rock Gas Unit No. 8 G-6-159473 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 59.2K | 3.77M | Jul 1996 – Aug 2026 |
| Indian Rock Gas Unit #9 G-6-180628 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 55.5K | 2.19M | Nov 2000 – Aug 2026 |
| Indian Rock Gas Unit #9 G-6-166914 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 54.9K | 3.74M | Jan 1998 – Aug 2026 |
| Indian Rock Gas Unit #5 G-6-43146 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 54.9K | 4.83M | by Jan 1993 – Aug 2026 |
| Indian Rock Gas Unit #9 G-6-144260 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 47.9K | 3.46M | Feb 1993 – Jun 2003 |
| Indian Rock Gas Unit 6 G-6-44249 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 47.5K | 3.46M | by Jan 1993 – Sep 2022 |
| Indian Rock Gas Unit 6 G-6-179633 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 40.5K | 2.41M | Sep 2000 – Aug 2026 |
| H. J. Trammell Gas Unit G-6-278322 | Sulphur River Exploration, Inc. | Gilmer (Cotton Valley Sands) | Upshur | 1 | 38.5K | 1.32M | Mar 2015 – Aug 2026 |
| Indian Rock Gas Unit #11 G-6-59218 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 38.1K | 3.91M | by Jan 1993 – Aug 2026 |
| Arrington Gas Unit G-6-145371 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 36.7K | 3.39M | Apr 1993 – Aug 2026 |
| Indian Rock Gas Unit #9 G-6-49799 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 35.8K | 5.12M | by Jan 1993 – Aug 2026 |
| Indian Rock Gas Unit #7 G-6-45755 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 35.6K | 3.01M | by Jan 1993 – Aug 2026 |
| Indian Rock Gas Unit No. 8 G-6-189334 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 34.7K | 3.01M | Apr 2002 – Aug 2026 |
| Indian Rock Gas Unit 1 G-6-37072 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 33.9K | 3.06M | by Jan 1993 – Aug 2026 |
| Indian Rock Gas Unit 8 G-6-274207 | Sulphur River Exploration, Inc. | Gilmer (Cotton Valley Sands) | Upshur | 1 | 33K | 1.86M | Apr 2014 – Aug 2026 |
| Indian Rock Gas Unit #5 G-6-179159 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 32.6K | 2.54M | Aug 2000 – Aug 2026 |
| Indian Rock Gas Unit 3 G-6-38801 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 32.5K | 2.87M | by Jan 1993 – Dec 2001 |
| Indian Rock Gas Unit 1 G-6-143353 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 31.4K | 2.8M | by Jan 1993 – Aug 2026 |
| Portland Gas Unit 'A' G-4-281783 | Sulphur River Exploration, Inc. | Portland, W. (F-13) | San Patricio | 1 | 30.4K | 1.78M | Nov 2016 – Aug 2026 |
| Indian Rock Gas Unit #7 G-6-180680 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 29.2K | 1.83M | Nov 2000 – Aug 2026 |
| Arrington Gas Unit G-6-76134 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 28.4K | 2.65M | by Jan 1993 – Jul 2024 |
| Indian Rock Gas Unit No. 9 G-6-204547 | Sulphur River Exploration, Inc. | Gilmer (Cotton Valley Sands) | Upshur | 1 | 27.4K | 2.29M | Jun 2003 – Aug 2026 |
| Indian Rock Gas Unit No. 8 G-6-189722 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 27.1K | 1.82M | May 2002 – Aug 2026 |
| Arrington-Clemens Gas Unit G-6-169282 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 25.5K | 2.18M | Jul 1998 – Aug 2026 |
| Indian Rock Gas Unit #9 G-6-211098 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 24.4K | 674K | Feb 2005 – Aug 2026 |
| Indian Rock Gas Unit 3 G-6-184695 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 23.2K | 1.87M | Jul 2001 – Aug 2026 |
| Indian Rock Gas Unit NO 2 G-6-145317 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 22.9K | 2.42M | Apr 1993 – Jul 2026 |
| Indian Rock Gas Unit 3 G-6-187292 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 22.9K | 1.37M | Jan 2002 – Aug 2026 |
| Portland Gas Unit - B G-4-147374 | Sulphur River Exploration, Inc. | Portland, W. (F-9) | San Patricio | 1 | 22.8K | 2.5M | Nov 1993 – Aug 2026 |
| Indian Rock Gas Unit #7 G-6-181914 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 22.3K | 2.6M | Feb 2001 – Aug 2026 |
| Indian Rock Gas Unit No. 1 G-6-184679 | Sulphur River Exploration, Inc. | Gilmer(jurassic) | Upshur | 1 | 21.8K | 1.79M | May 2001 – Aug 2025 |