| Adams, C. T. Oil Unit #2 O-3-10826 | Ft. Trinidad,s.(ottos Sand) | Houston | 2 | 286K | 31 | Jan 1993 – Jul 2026 |
| Adams, C. T. Oil Unit NO 1 O-3-10797 | Ft. Trinidad,s.(ottos Sand) | — | 1 | 131K | 339 | Jan 1993 – Jul 2026 |
| W-B Ranch O-13-32009 | Newark, East (Barnett Shale) | Shackelford | 3 | 45.2K | 94.5K | Aug 2010 – Jul 2026 |
| Walker-Buckler (Campbell) O-8-25589 | Bramlett (Miss.) | Throckmorton | 1 | 21.7K | 52 | Jan 1993 – Jul 2026 |
| Walker-Buckler Trust 2B O-8-27808 | Bs&t (Miss.) | Shackelford | 1 | 18.3K | 20.3K | Dec 1995 – Jul 2026 |
| Chase "A" O-8-29276 | Fort Griffin, NE. (Miss) | Shackelford | 1 | 11.4K | 17.8K | May 2003 – Jul 2026 |
| Arco No. 1 O-6-14906 | Stockman (Travis Peak) | Shelby | 1 | 6.51K | 18.7K | Nov 2007 – Jul 2026 |
| Clayton O-8-29319 | Korah (Caddo, Lower) | Shackelford | 2 | 6.23K | 115K | Sep 2003 – Jul 2026 |
| Walker-Buckler BF Reynolds O-8-19497 | Fort Griffin, NE. (Miss) | Shackelford | 2 | 5.24K | 83 | Jan 1993 – Jul 2026 |
| Walker - Buckler "A" O-8-28008 | Bs&t (Miss.) | Shackelford | 1 | 4.92K | 10.3K | Jun 1996 – Jul 2026 |
| Hilltex River Ranch 233 #4A O-8-28491 | Bramlett (Caddo) | Throckmorton | 1 | 4.63K | 23 | Jul 1998 – Jul 2026 |
| Hilltex River Ranch 233 #1 O-8-24221 | Throckmorton County Regular | Throckmorton | 3 | 3.36K | 79 | Jan 1993 – Jul 2026 |
| Walker-Buckler Trust/TR 40A/ O-8-26294 | Fort Griffin, E. (Caddo) | Shackelford | 2 | 2.59K | 6.18K | Jan 1993 – Jul 2026 |
| Walker-Buckler Trust/TR 40A/Roco O-8-27382 | Fort Griffin, E. (Strawn) | Shackelford | 1 | 1.31K | 10.2K | Nov 1994 – Jul 2026 |
| Walker-Buckler Trust/TR 40A/SWD O-8-9385 | Fort Griffin, E. (Miss) | Shackelford | 3 | 1.14K | 1.55K | Jan 1993 – Jul 2026 |
| Walker-Buckler Bramlette-26 Unit O-8-25438 | Bramlett (Miss.) | Throckmorton | 1 | 286 | 19 | Jan 1993 – Jul 2026 |
| W-B Ranch 522 O-8-31623 | Hillview (Caddo) | Shackelford | 1 | 27 | 1.57K | Aug 2013 – Jul 2026 |
| Yzaguirre, D. Heirs G-4-154296 | Bob West, Northwest (L-12-18) | Zapata | 1 | 0 | 1.87M | Mar 1995 – Jul 2026 |
| Yzaguirre, J. G-4-151740 | Bob West (L-12, 13, 14, 15) | Zapata | 1 | 0 | 360K | Jul 1994 – Jul 2026 |
| Ramirez-Yzaguirre Gas Unit G-4-149151 | Bob West (L-18, 20, 21, 22) | Zapata | 1 | 0 | 1.11M | Mar 1994 – Jul 2026 |
| Yzaguirre, J. G-4-151471 | Bob West (L-18, 20, 21, 22) | Zapata | 1 | 0 | 262K | Sep 1994 – Jul 2026 |
| Salinas "A" G-4-157439 | Bob West, North (L2, L3) | Zapata | 1 | 0 | 1.79M | Dec 1995 – Jul 2026 |
| Perez, F.R. G-4-157376 | Bob West, North (L2, L3) | Zapata | 1 | 0 | 3.17M | Sep 1995 – Jul 2026 |
| Yzaguirre, J. G-4-151267 | Bob West (L-18, 20, 21, 22) | Zapata | 1 | 0 | 153K | Jul 1994 – Jul 2026 |
| Martinez SWD G-4-157452 | Bob West, North (L2, L3) | Zapata | 1 | 0 | 1.13K | Dec 1995 – Jul 2026 |
| Ramirez-Yzaguirre Gas Unit G-4-157555 | Bob West (L-12, 13, 14, 15) | Zapata | 1 | 0 | 1.87M | Dec 1995 – Jul 2026 |
| Ramirez-Yzaguirre Gas Unit G-4-157832 | Bob West, North (L2, L3) | Zapata | 1 | 0 | 22.6K | Mar 1996 – Jul 2026 |
| Salinas "A" G-4-157860 | Bob West, North (L2, L3) | Zapata | 1 | 0 | 1.1M | Mar 1996 – Jul 2026 |
| Salinas-Ramirez Gas Unit G-4-157861 | Bob West, North (L2, L3) | Zapata | 1 | 0 | 581K | Feb 1996 – Jul 2026 |
| Ramirez/Yzaguirre G-4-158032 | Bob West (L-12, 13, 14, 15) | Zapata | 1 | 0 | 265K | Jan 1996 – Jul 2026 |
| Yzaguirre, J. G-4-148508 | Bob West (L-12, 13, 14, 15) | Zapata | 1 | 0 | 1.43M | Feb 1994 – Jul 2026 |
| Yzaguirre, J. G-4-146219 | Bob West (L-18, 20, 21, 22) | Zapata | 1 | 0 | 4.01M | Jul 1993 – Jul 2026 |
| Yzaguirre, J. G-4-157338 | Bob West (L-3) | Zapata | 1 | 0 | 840 | Mar 1994 – Jul 2026 |
| Ramirez-Yzaguirre Gas Unit G-4-157180 | Bob West (L-18, 20, 21, 22) | Zapata | 1 | 0 | 352K | Nov 1995 – Jul 2026 |
| Yzaquirre, J. G-4-151239 | Bob West (L-12, 13, 14, 15) | Zapata | 1 | 0 | 823K | Jul 1994 – Jul 2026 |
| Ramirez/Yzaguirre G-4-156996 | Bob West (L-18, 20, 21, 22) | Zapata | 1 | 0 | 23.2K | Aug 1995 – Jul 2026 |
| Palmyra G-4-161329 | Bob West, North (L2, L3) | Zapata | 1 | 0 | 18.9M | May 1996 – Jul 2026 |
| Ramirez, Maria V. G-4-161240 | Bob West, North (12,900) | Zapata | 1 | 0 | 1.29M | Jan 1996 – Jul 2026 |
| Palmyra G-4-156991 | Bob West, North (L2, L3) | Zapata | 1 | 0 | 3.6M | Sep 1995 – Jul 2026 |
| Yzaguirre, J. G-4-151022 | Bob West (L-15) | Zapata | 1 | 0 | 9.75K | Jul 1994 – Jul 2026 |
| Palmyra G-4-161391 | Bob West, North (L2, L3) | Zapata | 1 | 0 | 5.05M | Aug 1996 – Jul 2026 |
| Alvarez Gas Unit G-4-161582 | Bob West, North (L2, L3) | Zapata | 1 | 0 | 8.06M | Jul 1996 – Jul 2026 |
| Salinas "A" G-4-161625 | Wildcat | Zapata | 1 | 0 | 0 | Oct 1996 – Jul 2026 |
| Esperanza G-4-161709 | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 0 | 4.08M | Dec 1996 – Jul 2026 |
| Falcon Gas Unit G-4-162251 | Bob West, North (L2, L3) | Zapata | 1 | 0 | 5.23M | Nov 1996 – Jul 2026 |
| Ramirez, Maria V. G-4-164018 | Bob West (L-1-4) | Zapata | 1 | 0 | 374K | Jul 1997 – Jul 2026 |
| Salinas "A" G-4-164047 | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 0 | 2.18M | Jan 1997 – Jul 2026 |
| Palmyra G-4-164127 | Bob West, North (L2, L3) | Zapata | 1 | 0 | 4.55M | Nov 1996 – Jul 2026 |
| Palmyra G-4-164858 | Bob West, North (L2, L3) | Zapata | 1 | 0 | 11.6M | Jun 1996 – Jul 2026 |
| Yzaguirre, J. G-4-148128 | Bob West (L-18, 20, 21, 22) | Zapata | 1 | 0 | 2.36M | Nov 1993 – Jul 2026 |