| Shawna Wiatrek-Schiffers West B O-1-21717 | Warwick-Artemis, LLC only | Eagleville (Eagle Ford-1) | Wilson | 1 | 203K | 78.8K | Feb 2025 – Aug 2026 |
| Shawna Wiatrek-Schiffers West A O-1-21693 | Warwick-Artemis, LLC only | Eagleville (Eagle Ford-1) | Wilson | 1 | 201K | 83.8K | Jan 2025 – Aug 2026 |
| Schiffers O-1-14383 | First Light Operating, LLC only | Marcelina Creek (Austin Chalk) | Wilson | 5 | 137K | 39.4K | Oct 2001 – Jul 2026 |
| LVF Schiffers O-1-11969 | First Light Operating, LLC only | Marcelina Creek (Austin Chalk) | Wilson | 5 | 125K | 17.2K | by Jan 1993 – Jul 2026 |
| Bright & Schiff Hamman Gas Unit G-4-148684 | Merit Energy Company only | Monte Christo (Vksbg-Brown) | Hidalgo | 1 | 69.1K | 3.75M | Mar 1994 – Aug 2026 |
| Schiffers Ranch O-1-12316 | First Rock, Inc. only | Marcelina Creek (Buda) | Wilson | 6 | 16.9K | 3.99K | by Jan 1993 – Nov 1999 |
| Schiffers, Moberley O-1-14172 | First Rock, Inc. only | Sutil (Austin) | Wilson | 1 | 14.2K | 0 | Sep 1997 – Jul 2001 |
| Bright & Schiff Hamman Gas Unit G-4-173045 | Merit Energy Company only | Monte Christo (VX-Eckart-EE CNS) | Hidalgo | 1 | 13K | 3.57M | Feb 1999 – Aug 2026 |
| Schiffers Ranch O-1-13375 | Pedeco, Inc. only | Marcelina Creek (Austin Chalk) | Wilson | 2 | 8.42K | 1.88K | Oct 1997 – Jun 1999 |
| Bright & Schiff Hamman Gas Unit G-4-174261 | Merit Energy Company only | Monte Christo (Vksbg O-15) | Hidalgo | 1 | 6.81K | 682K | Aug 1998 – Apr 2003 |
| Bright & Schiff Hamman Gas Unit G-4-145933 | Merit Energy Company only | Monte Christo (Vksbg O-15) | Hidalgo | 1 | 4.06K | 281K | Jul 1993 – Feb 1994 |
| Bright & Schiff Hamman Gas Unit G-4-121424 | Merit Energy Company only | Monte Christo (43-57 Cons.) | Hidalgo | 1 | 3.47K | 842K | by Jan 1993 – Mar 2016 |
| Bright & Schiff Hamman Gas Unit G-4-223692 | Merit Energy Company only | Monte Christo (VX-Eckart-EE CNS) | Hidalgo | 1 | 2.51K | 920K | Mar 2006 – Aug 2026 |
| Bright & Schiff Hamman Gas Unit G-4-223264 | Merit Energy Company only | Monte Christo (VX-Eckart-EE CNS) | Hidalgo | 1 | 2.31K | 1.11M | Sep 2006 – Aug 2026 |
| Bright & Schiff Hamman Gas Unit G-4-195172 | Merit Energy Company only | Monte Christo (VX-Eckart-EE CNS) | Hidalgo | 1 | 2.26K | 1.65M | May 2003 – Aug 2026 |
| Bright & Schiff Hamman Gas Unit G-4-226751 | Merit Energy Company only | Monte Christo (VX-Eckart-EE CNS) | Hidalgo | 1 | 2.19K | 1.68M | Apr 2006 – Aug 2026 |
| Bright & Schiff Hamman Gas Unit G-4-223568 | Merit Energy Company only | Monte Christo (VX-Eckart-EE CNS) | Hidalgo | 1 | 1.94K | 921K | Jan 2006 – Aug 2026 |
| Bright & Schiff Hamman Gas Unit G-4-113956 | El Paso E & P Company, L. P. only | Monte Christo (43-57 Cons.) | Hidalgo | 1 | 1.62K | 331K | by Jan 1993 – Mar 1997 |
| Bright & Schiff Hamman Gas Unit G-4-226019 | Merit Energy Company only | Monte Christo (VX-Eckart-EE CNS) | Hidalgo | 1 | 1.05K | 439K | Mar 2007 – Aug 2026 |
| Schiffers Ranch -A- O-1-12110 | First Rock, Inc. only | Marcelina Creek (Buda) | Wilson | 1 | 1.04K | 740 | by Jan 1993 – Apr 1993 |
| Schiff G-14-22143 | Latigo Petroleum, LLC only | Hansford, North (Tonkawa) | Hansford | 1 | 805 | 1.71M | by Jan 1993 – Aug 2026 |
| Bright & Schiff Hamman Gas Unit G-4-111447 | Merit Energy Company only | Monte Christo (43-57 Cons.) | Hidalgo | 1 | 691 | 199K | by Jan 1993 – Oct 2008 |
| Bright & Schiff Hamman G.U. G-4-92150 | El Paso E & P Company, L. P. only | Monte Christo (VX-Eckart-EE CNS) | Hidalgo | 1 | 545 | 94.5K | by Jan 1993 – Dec 2007 |
| Exxon/Schiff O-3-23185 | Noble Oil Company, Inc. only | Highbaugh (Wilcox Odom Sand) | Tyler | 1 | 319 | 1.22K | Jul 1996 – Feb 1998 |
| Schiff "6" G-14-192276 | Mewbourne Oil Company only | Hansford (Morrow, Lower) | Hansford | 1 | 292 | 643K | Dec 2002 – Aug 2026 |
| Schiff "6" G-14-173521 | Mewbourne Oil Company only | Hansford (Morrow, Middle) | Hansford | 1 | 284 | 348K | Apr 1999 – Aug 2026 |
| Schiff-Lawrence GU G-14-28457 | Mountainside Energy Operating, L only | Hansford (Morrow, Lower) | Hansford | 1 | 248 | 953K | by Jan 1993 – Jun 2026 |
| Schiff "6" G-14-196576 | Mewbourne Oil Company only | Hansford (Morrow, Upper) | Hansford | 1 | 104 | 365K | Aug 2003 – Aug 2026 |
| Bright a Schiff Hamman G.U. G-4-100126 | Cantera Operating, LLC only | Monte Christo (VX-Eckart-EE CNS) | Hidalgo | 1 | 78 | 71.9K | Aug 1996 – Dec 1997 |
| Bright & Schiff Hamman G. U. G-4-100945 | El Paso E & P Company, L. P. only | Monte Christo (VX-Eckart-EE CNS) | Hidalgo | 1 | 65 | 189K | Sep 1996 – Feb 2007 |
| Schiff "6" G-14-194442 | Mewbourne Oil Company only | Hansford (Morrow, Lower) | Hansford | 1 | 47 | 70.4K | Mar 2003 – Jul 2003 |
| Schiff-Lawrence G-14-140810 | Mountainside Energy Operating, L only | Hansford, North (Wolfcamp) | Hansford | 1 | 13 | 292K | by Jan 1993 – Nov 2012 |
| Bright & Schiff Hamman Gas Unit G-4-242193 | Merit Energy Company only | Monte Christo (43-57 Cons.) | Hidalgo | 1 | 5 | 81.1K | Sep 2008 – May 2016 |
| Bright & Schiff Hamman Gas Unit G-4-175567 | Merit Energy Company only | Monte Christo (VX-Eckart-EE CNS) | Hidalgo | 1 | 2 | 746K | Dec 1999 – Sep 2009 |
| Bright & Schiff Hamman Gas Unit G-4-175507 | Merit Energy Company only | Monte Christo (VX-Eckart-EE CNS) | Hidalgo | 1 | 0 | 194K | Nov 1999 – Dec 2009 |
| Bright & Schiff Hamman G.U. G-4-93764 | Shell Western E&P Inc. only | Monte Christo (Vksbg-Eckart) | Hidalgo | 1 | 0 | 0 | — |
| Bright & Schiff Hamman Gas Unit G-4-104355 | Shell Western E&P Inc. only | Monte Christo (Vicksburg 15300) | Hidalgo | 1 | 0 | 0 | — |
| Bright & Schiff Hamman Gas Unit G-4-112993 | Bright & Co. only | Monte Christo (50-B, South) | Hidalgo | 1 | 0 | 0 | — |
| Bright & Schiff Hamman Gas Unit G-4-121008 | El Paso E & P Company, L. P. only | Monte Christo (VX-Eckart-EE CNS) | Hidalgo | 1 | 0 | 23K | Oct 1996 – Jan 1999 |
| Bright & Schiff Hamman Gas Unit G-4-148835 | Coastal Oil & Gas Corporation only | Monte Christo (50-B, South) | Hidalgo | 1 | 0 | 331 | Sep 1996 – Sep 1996 |
| Bright & Schiff Hamman Gas Unit G-4-175999 | El Paso E & P Company, L. P. only | Monte Christo (43-57 Cons.) | Hidalgo | 1 | 0 | 0 | — |
| Bright & Schiff Hamman Gas Unit G-4-222945 | EP Energy E&P Company, L.P. only | Monte Christo (43-57 Cons.) | Hidalgo | 1 | 0 | 1.91K | Oct 2007 – Jan 2010 |
| Bright & Schiff Hamman Gas Unit G-4-228858 | Cantera Operating, LLC only | Monte Christo (43-57 Cons.) | Hidalgo | 1 | 0 | 0 | — |
| Schiff G-14-227981 | Strat Land Exploration Company only | Wildcat | Hansford | 1 | 0 | 0 | — |
| Schiffers Ranch O-1-11522 | Loma Vista Farms only | Marcelina Creek (Buda) | Wilson | 4 | 0 | 0 | — |
| Schiffers Ranch O-1-14181 | First Rock, Inc. only | Wildcat | Wilson | 1 | 0 | 0 | — |
| Bright & Schiff Hamman Gas Unit G-4-175489 | Merit Energy Company only | Monte Christo (VX-Eckart-EE CNS) | Hidalgo | 1 | 0 | 367K | Dec 1999 – Mar 2010 |
| Bright & Schiff Hamman Gas Unit G-4-175546 | Merit Energy Company only | Monte Christo (VX-Eckart-EE CNS) | Hidalgo | 1 | 0 | 578K | Dec 1999 – Jul 2009 |
| Schiff G-14-78046 | New Arch Energy, LLC only | Hansford (Morrow, Lower) | Hansford | 1 | 0 | 457K | Feb 1993 – Aug 2026 |
| Bright & Schiff Hamman Gas Unit G-4-170893 | Merit Energy Company only | Monte Christo (Vksbg PP) | Hidalgo | 1 | 0 | 0 | — |