| Bracken et Al O-1-8288 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 54 | 1.4M | 13.6M | Jan 1993 – Apr 2026 |
| Amarilla, Rosa G-4-169717 | Varas Energy Operating Company, | Santa Ana (Marks) | Hidalgo | 1 | 944K | 17.6M | Jul 1998 – Apr 2026 |
| Whitehurst O-1-14138 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 12 | 615K | 4.93M | Nov 1997 – Apr 2026 |
| Santa Ana G-4-169296 | Varas Energy Operating Company, | Santa Ana (Marks) | Hidalgo | 1 | 582K | 9.97M | Jun 1998 – Apr 2026 |
| Guerra, Raul O-4-10703 | Varas Energy Operating Company, | Lopeno ( Queen City Oil) | Zapata | 3 | 206K | 485K | Jan 1993 – Apr 2026 |
| SBR O-1-14305 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 10 | 196K | 2.72M | Aug 2000 – Apr 2026 |
| WR "A" O-1-14216 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 10 | 169K | 419K | Sep 1998 – Apr 2026 |
| Eia Properties G-4-215176 | Varas Energy Operating Company, | T Patch (Reklaw Oso) | Starr | 1 | 163K | 8.54M | Jan 2006 – Apr 2026 |
| Garcia 1 G-4-143177 | Varas Energy Operating Company, | Alta Mesa, East (7760 Vicksburg) | Brooks | 1 | 158K | 10.3M | Jan 1993 – Mar 2026 |
| Southwest Texas Corp "A" G-4-208309 | Varas Energy Operating Company, | T Patch (Reklaw Oso) | Starr | 1 | 148K | 8.22M | Dec 2004 – Apr 2026 |
| Sullivan, D.J. -B- O-4-12804 | Varas Energy Operating Company, | Pita (Frio Consolidated) | Brooks | 20 | 139K | 534K | Aug 1998 – Mar 2026 |
| Garcia 1 O-4-111 | Varas Energy Operating Company, | Alta Mesa (Garcia Sand) | Brooks | 7 | 137K | 394 | Jan 1993 – Apr 2026 |
| Bracken "I" O-1-12182 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 5 | 101K | 446K | Jan 1993 – Apr 2026 |
| WR "K" O-1-14125 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 5 | 93.1K | 547K | Sep 1997 – Apr 2026 |
| McClaugherty, L.S. -A- O-1-8405 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 11 | 92.9K | 3.2M | Jan 1993 – Apr 2026 |
| Cooper Foundation G-4-212176 | Varas Energy Operating Company, | T Patch (Reklaw Oso) | Jim Hogg | 1 | 88.6K | 3.21M | Aug 2005 – Apr 2026 |
| WR "L" Unit O-1-14126 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 3 | 87.2K | 593K | Sep 1997 – Apr 2026 |
| Southwest Texas Corp "C" G-4-208781 | Varas Energy Operating Company, | T Patch (Reklaw Oso) | Starr | 1 | 85.6K | 4.64M | Mar 2005 – Apr 2026 |
| Gonzales O-1-15042 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 2 | 82.7K | 31.9K | Apr 2009 – Apr 2026 |
| Anthony Forest Products O-1-17056 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 2 | 81.2K | 518K | Sep 2011 – Apr 2026 |
| Ramirez, Blas O-4-7946 | Varas Energy Operating Company, | Lopeno ( Queen City Oil) | Zapata | 1 | 78.4K | 158K | Jan 1993 – May 2020 |
| Anthony Forest Products G-1-263066 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 1 | 76.9K | 1.02M | Mar 2011 – Apr 2026 |
| ZR Unit "D" O-1-14217 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 2 | 72.6K | 413K | Sep 1998 – Apr 2026 |
| Villarreal G-4-181118 | Varas Energy Operating Company, | Pok - a - Dot (8600) | Webb | 1 | 72.6K | 3.14M | Jan 2001 – Apr 2025 |
| Cooper Foundation G-4-209900 | Varas Energy Operating Company, | T Patch (Reklaw Oso) | Starr | 1 | 71.1K | 4.24M | Jun 2005 – Apr 2026 |
| SWR "B" O-1-14214 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 4 | 68.3K | 569K | Sep 1998 – Apr 2026 |
| Sullivan, D. J. -B- G-4-254899 | Varas Energy Operating Company, | Pita (Frio Consolidated) | Brooks | 1 | 61.5K | 633K | Jan 2009 – Feb 2026 |
| Anthony Forest Products G-1-266725 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 1 | 58.9K | 1.04M | Apr 2012 – Apr 2026 |
| Anthony Forest Products G-1-255265 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 1 | 58.1K | 1.84M | Jan 2010 – Apr 2026 |
| Laurel, A. G-4-164674 | Varas Energy Operating Company, | Cuba Libre (3RD Hinnant) | Webb | 1 | 56.8K | 2.87M | Aug 1997 – Feb 2026 |
| Self Gas Unit G-1-167875 | Varas Energy Operating Company, | Hostetter (Wilcox A) | Duval | 1 | 56.1K | 3M | Mar 1998 – Mar 2026 |
| Whitehurst G-1-271047 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 1 | 55.4K | 1.53M | Apr 2013 – Apr 2026 |
| Bracken et Al G-1-157247 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 1 | 54.1K | 784K | Dec 1995 – Apr 2026 |
| A. G. Long Gas Unit G-4-166564 | Varas Energy Operating Company, | Cuba Libre (3RD Hinnant) | Webb | 1 | 53.8K | 3.17M | Feb 1998 – Apr 2026 |
| Bracken G-1-133674 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 1 | 52.7K | 1.29M | Jan 1993 – Apr 2026 |
| Southwest Texas Corp "B" G-4-208311 | Varas Energy Operating Company, | T Patch (Reklaw Oso) | Starr | 1 | 50.1K | 3.33M | Jan 2005 – Jun 2023 |
| Henry O-1-15184 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 2 | 49.6K | 6.04K | Apr 2010 – Dec 2025 |
| Southwest Texas Corp "D" G-4-209457 | Varas Energy Operating Company, | T Patch (Reklaw Oso) | Starr | 1 | 46.8K | 2.77M | Apr 2005 – Apr 2026 |
| Anthony Forest Products G-1-267253 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 1 | 45.4K | 721K | Jun 2012 – Apr 2026 |
| Deatrick G-4-191420 | Varas Energy Operating Company, | Jeffress, E. (10,400 SD) | Hidalgo | 1 | 44.7K | 4.95M | Aug 2002 – Apr 2026 |
| Sullivan, D. J. "B" G-4-160645 | Varas Energy Operating Company, | Pita (Frio Consolidated) | Brooks | 1 | 44.6K | 476K | Sep 1996 – Feb 2026 |
| Stella Penn O-1-17950 | Varas Energy Operating Company, | Hostetter, N. (Gov't. WELLS,3RD) | McMullen | 1 | 44K | 113K | Jan 2014 – Apr 2026 |
| Gutierrez Heirs 37 G-4-164759 | Varas Energy Operating Company, | Urebeno, South (Wilcox 7000) | Zapata | 1 | 43.8K | 9.21M | Sep 1997 – Nov 2025 |
| Anthony Forest Products G-1-264203 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 1 | 42.7K | 1.52M | Sep 2011 – Apr 2026 |
| Bracken et Al G-1-149486 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 1 | 42.2K | 1.41M | May 1994 – Apr 2026 |
| Villarreal G-4-179280 | Varas Energy Operating Company, | Pok - a - Dot (8600) | Webb | 1 | 41.2K | 2.05M | Sep 2000 – Apr 2025 |
| Eia Properties G-4-213818 | Varas Energy Operating Company, | T Patch (Reklaw Oso) | Starr | 1 | 40.8K | 2.49M | Sep 2005 – Apr 2026 |
| Bracken et Al G-1-144062 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 1 | 40.7K | 1.48M | Jan 1993 – Apr 2026 |
| Whitehurst G-1-260166 | Varas Energy Operating Company, | A.W.P. (Olmos) | McMullen | 1 | 40.6K | 978K | Dec 2010 – Apr 2026 |
| Villarreal G-4-179707 | Varas Energy Operating Company, | Pok - a - Dot (8600) | Webb | 1 | 39.7K | 2.84M | Aug 2000 – Apr 2025 |