| Storey Estate G-1-135629 | Virtex Operating Company, Inc. | White Kitchen (Edwards Lime) | La Salle | 1 | 647 | 1.05M | by Jan 1993 – Jun 2014 |
| Burkholder, Alice W. G-1-44895 | Virtex Operating Company, Inc. | Encinal (5800) | La Salle | 1 | 613 | 189K | by Jan 1993 – Aug 2002 |
| Harlan, R. K. G-1-244941 | Virtex Operating Company, Inc. | Doering Ranch (Edwards) | Frio | 1 | 599 | 123K | Nov 2008 – Oct 2009 |
| VT Coleman Heirs 503 G-1-233686 | Virtex Operating Company, Inc. | Sun T S H (Olmos) | La Salle | 1 | 598 | 62K | Jul 2008 – Jul 2016 |
| Floerke, Roy G-4-181238 | Virtex Operating Company, Inc. | Midway (Douglas 6630) | San Patricio | 1 | 584 | 36.8K | Feb 2001 – Jun 2001 |
| Krause, A.L. Estate G-4-98796 | Virtex Operating Company, Inc. | Tom Walsh (Olmos) | La Salle | 1 | 433 | 332K | by Jan 1993 – Dec 2017 |
| Mullins O-1-9909 | Virtex Operating Company, Inc. | Bear Creek | Medina | 1 | 407 | 20 | by Jan 1993 – Oct 1997 |
| Harlan, R. K. G-1-244790 | Virtex Operating Company, Inc. | Doering Ranch (Georgetown) | Frio | 1 | 337 | 272K | Dec 2008 – Feb 2018 |
| Burkholder, A. W. Estate G-4-56300 | Virtex Operating Company, Inc. | Tom Walsh (Olmos) | Webb | 1 | 294 | 71.8K | by Jan 1993 – Jul 2010 |
| Harlan, R. K. G-1-74309 | Virtex Operating Company, Inc. | Doering Ranch (Georgetown) | Frio | 1 | 257 | 293K | May 1995 – Apr 2009 |
| Dawson G-4-97531 | Virtex Operating Company, Inc. | Tom Walsh (Olmos) | Webb | 1 | 235 | 237K | by Jan 1993 – Aug 2017 |
| Pechal-Sirny G-1-220879 | Virtex Operating Company, Inc. | Doering Ranch (Edwards) | Frio | 1 | 221 | 192K | Aug 2006 – Nov 2008 |
| Hunter, Larry T. et Al G-4-118529 | Virtex Operating Company, Inc. | Tom Walsh (Escondido) | Webb | 1 | 206 | 96.7K | by Jan 1993 – Jan 2001 |
| Hunter, Larry T. et Al G-4-122117 | Virtex Operating Company, Inc. | Tom Walsh (Escondido) | Webb | 1 | 203 | 105K | by Jan 1993 – Jan 2001 |
| Mullins O-1-3015 | Virtex Operating Company, Inc. | Bear Creek | Medina | 2 | 169 | 19 | by Jan 1993 – Apr 1996 |
| Lowry G-1-243840 | Virtex Operating Company, Inc. | Tri Bar (Olmos) | La Salle | 1 | 157 | 18.6K | Nov 2008 – Nov 2020 |
| Garner G-4-74911 | Virtex Operating Company, Inc. | Tom Walsh (Olmos) | Webb | 1 | 111 | 138K | by Jan 1993 – Sep 2013 |
| Stokes, I.C. G-4-59368 | Virtex Operating Company, Inc. | Tom Walsh (Olmos) | Webb | 1 | 80 | 79.8K | by Jan 1993 – Mar 2010 |
| Garner G-4-74910 | Virtex Operating Company, Inc. | Tom Walsh (Olmos) | Webb | 1 | 65 | 76.8K | by Jan 1993 – Mar 2001 |
| Benavides G-4-67260 | Virtex Operating Company, Inc. | Mesquite (Escondido) | Webb | 1 | 59 | 116K | by Jan 1993 – Oct 2013 |
| Harlan, R. K. G-1-225023 | Virtex Operating Company, Inc. | Doering Ranch (Georgetown) | Frio | 1 | 34 | 27.2K | Jan 2007 – Feb 2008 |
| Benavides-CNR G-4-93417 | Virtex Operating Company, Inc. | Mesquite (Escondido) | Webb | 1 | 32 | 56.5K | Feb 1993 – Aug 2016 |
| Benavides G-4-72714 | Virtex Operating Company, Inc. | Mesquite (Escondido) | Webb | 1 | 31 | 61.2K | by Jan 1993 – Aug 2016 |
| Harlan, R. K. G-1-220856 | Virtex Operating Company, Inc. | Doering Ranch (Edwards) | Frio | 1 | 29 | 140K | Jul 2006 – Apr 2009 |
| James G-4-95612 | Virtex Operating Company, Inc. | Tom Walsh (Olmos) | Webb | 1 | 27 | 212K | by Jan 1993 – Mar 2019 |
| Johns-Stokes Unit G-4-54964 | Virtex Operating Company, Inc. | Tom Walsh (Olmos) | Webb | 1 | 27 | 141K | by Jan 1993 – Jan 2018 |
| Benavides G-4-77924 | Virtex Operating Company, Inc. | Mesquite (Escondido) | Webb | 1 | 25 | 59.1K | by Jan 1993 – Dec 2012 |
| Benavides G-4-74864 | Virtex Operating Company, Inc. | Mesquite (Escondido) | Webb | 1 | 25 | 35.9K | by Jan 1993 – Apr 2005 |
| Alamo National Bank Trustee G-1-122290 | Virtex Operating Company, Inc. | Green Branch (Wilcox 2-D) | McMullen | 1 | 23 | 198K | by Jan 1993 – Apr 2003 |
| Middleton, T. Et.al. -B- G-4-69680 | Virtex Operating Company, Inc. | Booth Ranch (Wilcox 3500) | Webb | 1 | 23 | 42.5K | by Jan 1993 – Mar 2000 |
| Triphene Middleton et al -B- G-4-70882 | Virtex Operating Company, Inc. | Booth Ranch (Wilcox 3500) | Webb | 1 | 17 | 51.1K | by Jan 1993 – Jun 1996 |
| Marrs McLean Unit G-1-272178 | Virtex Operating Company, Inc. | Doering Ranch (Georgetown) | Frio | 1 | 10 | 12.4K | May 2013 – Oct 2013 |
| Harlan, R. K. G-1-69213 | Virtex Operating Company, Inc. | Doering Ranch (Georgetown) | Frio | 1 | 9 | 367K | by Jan 1993 – May 2016 |
| Sandeen, John G-1-255674 | Virtex Operating Company, Inc. | Jourdanton (Georgetown) | Atascosa | 1 | 2 | 238 | Feb 2010 – Jun 2010 |
| Triphene Middleton et al -B- G-4-69908 | Virtex Operating Company, Inc. | Las Tiendas (Olmos) | Webb | 1 | 0 | 20K | Apr 2000 – Aug 2006 |
| Berry, Martha F. G-1-14 | Virtex Operating Company, Inc. | Big Foot, West (Gas) | Frio | 1 | 0 | 198K | by Jan 1993 – Nov 2018 |
| Biedieger, Ferdinand G-1-23 | Virtex Operating Company, Inc. | Big Foot, West (Gas) | Frio | 1 | 0 | 59.4K | by Jan 1993 – Nov 2018 |
| Eckenroth, Ed. H. G-1-30 | Virtex Operating Company, Inc. | Big Foot, West (Gas) | Frio | 1 | 0 | 205K | by Jan 1993 – Feb 2014 |
| Eckenroth, Ed. H. G-1-31 | Virtex Operating Company, Inc. | Big Foot, West (Gas) | Frio | 1 | 0 | 202K | by Jan 1993 – Jun 2007 |
| Lanham, B. C. G-1-36 | Virtex Operating Company, Inc. | Big Foot, West (Gas) | Frio | 1 | 0 | 249K | by Jan 1993 – Sep 2016 |
| Mann-Biediger Gas Unit G-1-39 | Virtex Operating Company, Inc. | Big Foot, West (Gas) | Frio | 1 | 0 | 29.6K | by Jan 1993 – May 2008 |
| Oquinn, Webster, Gas Unit G-1-41 | Virtex Operating Company, Inc. | Big Foot, West (Gas) | Frio | 1 | 0 | 214K | by Jan 1993 – Feb 2017 |
| Tate, G. E. G-1-43 | Virtex Operating Company, Inc. | Big Foot, West (Gas) | Frio | 1 | 0 | 164K | by Jan 1993 – Jan 2005 |
| Tate, G. E. G-1-44 | Virtex Operating Company, Inc. | Big Foot, West (Gas) | Frio | 1 | 0 | 120K | by Jan 1993 – Jun 2006 |
| Tate, Gordon E. G-1-47 | Virtex Operating Company, Inc. | Big Foot, West (Gas) | Frio | 1 | 0 | 101K | by Jan 1993 – Dec 2018 |
| Walden, R. C. G-1-52 | Virtex Operating Company, Inc. | Big Foot, West (Gas) | Frio | 1 | 0 | 59.7K | by Jan 1993 – May 2008 |
| Williams, Geo. M. G-1-54 | Virtex Operating Company, Inc. | Big Foot, West (Gas) | Frio | 1 | 0 | 63.5K | by Jan 1993 – Nov 2007 |
| Williams, Geo. M. G-1-62 | Virtex Operating Company, Inc. | Big Foot, West (Gas) | Frio | 1 | 0 | 77.7K | by Jan 1993 – Feb 2006 |
| Eckenroth, Ed. H. G-1-30442 | Virtex Operating Company, Inc. | Big Foot, West (Gas) | Frio | 1 | 0 | 185K | by Jan 1993 – Mar 2014 |
| Walden, R. C. G-1-30770 | Virtex Operating Company, Inc. | Big Foot, West (Gas) | Frio | 1 | 0 | 82.6K | by Jan 1993 – Feb 2019 |