| Moursund, A. N. O-1-4509 | Virtex Operating Company, Inc. | Jourdanton | Atascosa | 1 | 85.5K | 182K | Jan 1993 – Sep 2011 |
| Schorsch, Henry O-1-741 | Virtex Operating Company, Inc. | Jourdanton | Atascosa | 2 | 81.5K | 296K | Jan 1993 – Apr 2012 |
| Tocquigny, R.O. O-1-12739 | Virtex Operating Company, Inc. | Pearsall (Austin Chalk) | Dimmit | 1 | 68.3K | 9.71K | Jan 1993 – Sep 2016 |
| Fisher et al Unit O-1-17532 | Virtex Operating Company, Inc. | Jourdanton (Buda) | Atascosa | 1 | 63.4K | 70.1K | Jul 2013 – Jun 2017 |
| Burleson O-1-17569 | Virtex Operating Company, Inc. | Doering Ranch (Georgetown) | Frio | 1 | 59.7K | 347K | Oct 2012 – Feb 2018 |
| Storey, H.D. O-1-12238 | Virtex Operating Company, Inc. | Storey (4000) | La Salle | 2 | 49.4K | 11.8K | Jan 1993 – May 2011 |
| Prewett, Marshall G-2-125785 | Virtex Operating Company, Inc. | Yorktown, South (Wilcox 9930) | De Witt | 1 | 46.5K | 506K | Jan 1993 – Jul 2013 |
| Labus O-1-10634 | Virtex Operating Company, Inc. | Marcelina Creek (Austin Chalk) | Wilson | 1 | 42.6K | 319 | Jan 1993 – Dec 2017 |
| Pryor-Pickens O-1-6462 | Virtex Operating Company, Inc. | Lillie Marie (San Miguel) | Zavala | 1 | 30.7K | 992 | Jan 1993 – May 2015 |
| Oso-Sandia Unit O-2-8175 | Virtex Operating Company, Inc. | Kenedy, E. (Luling) | Karnes | 1 | 26.5K | 292K | May 1996 – Oct 2012 |
| Garrison Gas Unit No. 1 G-6-222670 | Virtex Operating Company, Inc. | Garrison (Travis Peak) | Nacogdoches | 1 | 23.3K | 913K | Sep 2006 – Mar 2023 |
| Walton, W. W. O-4-2527 | Virtex Operating Company, Inc. | Saxet | Nueces | 6 | 21.6K | 19 | Jan 1993 – Aug 2014 |
| Floerke, Roy O-4-12979 | Virtex Operating Company, Inc. | Midway | San Patricio | 3 | 18.3K | 13.8K | Sep 2000 – Oct 2006 |
| Sandeen, John G-1-129294 | Virtex Operating Company, Inc. | Jourdanton | Atascosa | 1 | 18.1K | 2.47M | Jan 1993 – Jul 2009 |
| Fite, L. E. O-4-12972 | Virtex Operating Company, Inc. | Triple -a- (Frio 7100) | San Patricio | 1 | 17.8K | 8.29K | Nov 2000 – Jan 2015 |
| Pearlstone, Claire G-1-74324 | Virtex Operating Company, Inc. | Jourdanton | Atascosa | 1 | 17.3K | 3.35M | Jan 1993 – Aug 2011 |
| Fansler, Lorraine O-1-10394 | Virtex Operating Company, Inc. | Tri Bar, North (Olmos) | La Salle | 8 | 17.1K | 988K | Jan 1993 – Mar 2013 |
| Stafford-Kercho O-1-18322 | Virtex Operating Company, Inc. | Eagleville (Eagle Ford-1) | Atascosa | 1 | 12.3K | 60.4K | Jan 2015 – Nov 2015 |
| Wallace, J. C. G-1-144910 | Virtex Operating Company, Inc. | Jourdanton | Atascosa | 1 | 12.3K | 2.05M | Mar 1993 – Nov 1997 |
| Killam G-1-170313 | Virtex Operating Company, Inc. | Atlee (Olmos) | La Salle | 1 | 9.81K | 441K | Aug 1998 – Nov 2010 |
| Longoria G-4-166094 | Virtex Operating Company, Inc. | McAllen Ranch (Vicksburg N) | Hidalgo | 1 | 8.97K | 514K | Oct 1997 – Oct 2010 |
| Destino 565 O-4-13414 | Virtex Operating Company, Inc. | Rowden, N. (Govt. Wells, Lower) | Duval | 1 | 8.93K | 13.1K | Dec 2006 – Nov 2016 |
| Tisdale, Josephine O-9-8657 | Virtex Operating Company, Inc. | Fort McKavitt (Canyon) | Schleicher | 1 | 8.28K | 179K | Jan 1993 – Dec 2009 |
| Fite, L.E. G-4-174421 | Virtex Operating Company, Inc. | Triple -a- (Frio 7300 Sd.) | San Patricio | 1 | 8.19K | 215K | Sep 1999 – Nov 2000 |
| Pryor, Ike T. III et Al O-1-10321 | Virtex Operating Company, Inc. | Lillie Marie (San Miguel) | Zavala | 2 | 7.02K | 1.02K | Jan 1993 – Jan 1999 |
| S.P.J.S.T. Lodge G-1-210848 | Virtex Operating Company, Inc. | Jourdanton | Atascosa | 1 | 5.94K | 1.1M | Jul 2005 – Aug 2015 |
| Werner, C. G-4-145919 | Virtex Operating Company, Inc. | Whitted (6900) | Hidalgo | 1 | 5.89K | 1.95M | Mar 1993 – Dec 2014 |
| Marie Dueser Gas Unit G-2-115111 | Virtex Operating Company, Inc. | Henze, E. (10,400 Sand) | De Witt | 1 | 5.47K | 111K | Jan 1993 – Feb 2011 |
| Garrison Gas Unit 7 G-6-96111 | Virtex Operating Company, Inc. | Garrison (Travis Peak) | Nacogdoches | 1 | 5.02K | 160K | Jan 1993 – Mar 2012 |
| Bacak O-1-10733 | Virtex Operating Company, Inc. | Jourdanton, N. (Austin Chalk) | Atascosa | 1 | 4.55K | 521 | Jan 1993 – Aug 2010 |
| Harlan, R. K. G-1-137655 | Virtex Operating Company, Inc. | Doering Ranch (Georgetown) | Frio | 1 | 4.19K | 181K | Jan 1996 – Sep 2007 |
| Longoria G-4-171795 | Virtex Operating Company, Inc. | San Ramon (8300) | Hidalgo | 1 | 3.98K | 271K | Jan 1999 – Jun 2011 |
| Wilson, F. C. G-1-118866 | Virtex Operating Company, Inc. | Jourdanton | Atascosa | 1 | 3.66K | 410K | Jan 1993 – Sep 1995 |
| Hare, K. T. G-3-123437 | Virtex Operating Company, Inc. | Iola (Woodbine 9700) | Grimes | 1 | 3.66K | 325K | Jan 1993 – Oct 2016 |
| Fair O-1-17147 | Virtex Operating Company, Inc. | Jourdanton | Atascosa | 1 | 2.93K | 2.41K | Jan 2013 – Jun 2013 |
| Uno Mas -A- O-1-9629 | Virtex Operating Company, Inc. | Strickhausen (Olmos Tri-Bar) | La Salle | 5 | 2.83K | 372K | Jan 1993 – Apr 2004 |
| Longoria G-4-155347 | Virtex Operating Company, Inc. | San Ramon (9500) | Hidalgo | 1 | 2.29K | 144K | Jul 1995 – Dec 2001 |
| Alamo National Bank Trustee G-1-66892 | Virtex Operating Company, Inc. | Green Branch (Wilcox 2-D) | McMullen | 1 | 2.04K | 675K | Jan 1993 – Apr 2016 |
| Lenert, George E. O-1-15118 | Virtex Operating Company, Inc. | Jourdanton (Buda) | Atascosa | 1 | 1.99K | 12.7K | Oct 2009 – Jun 2014 |
| Burkholder, Alice W. G-1-125987 | Virtex Operating Company, Inc. | Encinal (5800) | La Salle | 1 | 1.77K | 471K | Jan 1993 – Feb 2011 |
| Beever Farms Inc C G-1-260313 | Virtex Operating Company, Inc. | Doering Ranch (Georgetown) | Frio | 1 | 1.62K | 69.2K | Feb 2011 – Nov 2012 |
| Mullins -A- O-1-3045 | Virtex Operating Company, Inc. | Bear Creek | Medina | 2 | 1.54K | 19 | Jan 1993 – Mar 2009 |
| Johns, E. S. Estate O-4-13465 | Virtex Operating Company, Inc. | Tom Walsh (Olmos) | Webb | 1 | 1.39K | 18K | Oct 2007 – Dec 2008 |
| Storey, H.D. O-1-9896 | Virtex Operating Company, Inc. | Storey (5150) | La Salle | 1 | 1.33K | 7.55K | Feb 1993 – Jan 2001 |
| McWilliams Heirs A O-1-15416 | Virtex Operating Company, Inc. | Pearsall (Austin Chalk) | Frio | 1 | 1.32K | 1.68K | May 2011 – Sep 2011 |
| Marrs McLean a/C Unit O-1-16498 | Virtex Operating Company, Inc. | Pearsall (Austin Chalk) | Frio | 1 | 1.32K | 22 | Oct 2011 – Aug 2012 |
| Gutierrez, Robert O-1-10418 | Virtex Operating Company, Inc. | Tri Bar, North (Olmos) | La Salle | 1 | 946 | 12K | Jan 1993 – Mar 2013 |
| Spjst Lodge G-1-278609 | Virtex Operating Company, Inc. | Jourdanton (Georgetown) | Atascosa | 1 | 796 | 96K | Sep 2015 – Apr 2022 |
| Coleman Heirs 507 A G-1-243048 | Virtex Operating Company, Inc. | Sun T S H (Olmos) | La Salle | 1 | 716 | 42.7K | Aug 2008 – Jul 2016 |
| Lenert, George E. O-1-14704 | Virtex Operating Company, Inc. | Jourdanton (Georgetown) | Atascosa | 1 | 698 | 4.7K | Apr 2006 – Sep 2009 |