| Heard, Mrs. Fannie V. W. G-2-180992 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 10.4K | 2.31M | Dec 2000 – May 2004 |
| M. F. Lambert O-2-9323 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 4 | 8.24K | 10.8K | May 2009 – Mar 2019 |
| Reilly, Annie et Vir G-2-180969 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 6.4K | 1.26M | Dec 2000 – Mar 2001 |
| Heard, Mrs. Fannie V. W. G-2-180968 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 5.45K | 1.37M | Dec 2000 – Jan 2005 |
| Heard, Mrs. Fannie V. W. G-2-180967 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 4.66K | 1.3M | Dec 2000 – Jan 2005 |
| Heard, Mrs. Fannie V. W. G-2-180966 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 1.84K | 513K | Dec 2000 – Feb 2001 |
| Heard, Clement G-2-180998 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 1.69K | 672K | Dec 2000 – Feb 2001 |
| Heard, Mrs. Fannie V. W. G-2-182046 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 1.5K | 675K | Feb 2001 – Dec 2004 |
| Reilly, Annie et Vir G-2-182729 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 1.24K | 438K | Mar 2001 – Jan 2002 |
| Heard, Mrs. Fannie V. W. G-2-182918 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 963 | 207K | Mar 2001 – Apr 2001 |
| Heard, Clement G-2-182090 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 242 | 158K | Feb 2001 – Jan 2004 |
| Heard, Mrs. Fannie V. W. G-2-186369 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 139 | 405K | Apr 2001 – Nov 2004 |
| O'Connor, Thomas 'A' O-2-11489 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 78 | 46 | Aug 2017 – Oct 2017 |
| O'Connor, Thomas 'C' G-2-180970 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 31 | 150K | Dec 2000 – Nov 2004 |
| Reilly, Annie et Vir G-2-188438 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 75K | Dec 2001 – Mar 2003 |
| O'Connor, Thomas 'A' G-2-188900 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 97.3K | Nov 2000 – May 2003 |
| O'Connor, Thomas "A" G-2-189324 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 8.48K | Feb 2002 – May 2003 |
| Heard, Clement G-2-190830 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 33.6K | Jul 2002 – Jan 2004 |
| O'Connor, Thomas "A" G-2-192125 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 21.3K | Jun 2002 – Sep 2003 |
| Heard, Claude E. G-2-194126 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 143K | Mar 2003 – Jan 2007 |
| Lambert, M. F. G-2-194129 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 22.1K | Mar 2003 – Jun 2003 |
| Heard, Fannie V. W. Mrs G-2-194177 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 37.6K | Apr 2003 – Jan 2005 |
| Heard, Ira "A" G-2-194674 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 6.42K | Apr 2003 – Nov 2003 |
| Williams, Maude et al "B" G-2-195374 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 9.68K | Apr 2003 – Nov 2003 |
| O'Connor, Thomas "A" G-2-195711 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 2.42K | Apr 2003 – Sep 2003 |
| Heard, Fannie V. W. Mrs G-2-196720 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 42.9K | May 2003 – Oct 2004 |
| O'Connor, Thomas "A" G-2-196996 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 20.1K | Jul 2002 – Dec 2003 |
| Lambert Gas Unit G-2-234396 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 2.39K | Mar 2008 – Jun 2008 |
| Claude E. Heard et Al G-2-235867 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 0 | — |
| Heard, Claude E. et Al G-2-263639 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 594 | Dec 2011 – Feb 2012 |
| Lambert G-2-4493 | Devon Energy Production Co, L.P. only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 0 | — |
| O'Connor, Thomas "C" O-2-11643 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 0 | — |
| Lambert G-2-4496 | Kovar Operating, LLC only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 0 | — |
| O'Connor, Thomas 'C' G-2-180780 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 189K | Oct 2000 – Jan 2005 |
| O'Connor, Thomas "C" G-2-181089 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 185K | Jan 2001 – Dec 2003 |
| O'Connor, Thomas "C" G-2-181980 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 36.7K | Jan 2001 – Oct 2001 |
| Bauer, Mary Claire et Vir G-2-182018 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 152K | Jan 2001 – Oct 2003 |
| Heard, Mrs. Fannie V. W. G-2-182021 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 140K | Feb 2001 – Jun 2005 |
| Heard, Mrs. Fannie V. W. G-2-182039 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 231K | Jan 2001 – Jan 2005 |
| Heard, Mrs. Fannie V. W. G-2-182084 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 230K | Feb 2001 – Jul 2004 |
| Heard, Clement G-2-182608 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 80.3K | Mar 2001 – Mar 2002 |
| O'Connor, Thomas "C" G-2-182617 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 12.9K | Jan 2001 – Oct 2002 |
| Heard, Mrs. Fannie V. W. G-2-186371 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 138K | Mar 2001 – Feb 2004 |
| O'Connor, Thomas 'C' G-2-186373 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 51.3K | Apr 2001 – May 2003 |
| Heard, Claude E. et Al G-2-186442 | Hilcorp Energy Company only | Tom Oconnor (5300, East) | Refugio | 1 | 0 | 26.7K | Sep 2001 – Jul 2003 |