| Williams, Maude, Etal -A- O-2-2533 | Hilcorp Energy Company only | Lake Pasture (H-440 Sand) | Refugio | 176 | 11.1M | 179M | Jan 1993 – Apr 2026 |
| River Ranch -a-/Williams State U O-2-9301 | T-C Oil Company, LLC only | Anaqua (3100) | Refugio | 12 | 1.99M | 509K | Nov 2008 – Apr 2026 |
| Williams, Maude, Etal -A- O-2-820 | Hilcorp Energy Company only | Lake Pasture (FS-527) | Refugio | 15 | 466K | 1.27M | Jan 1993 – Apr 2026 |
| Williams, Maude, et al -A- O-2-2878 | Hilcorp Energy Company only | Tom Oconnor (5900 Sand) | Refugio | 10 | 441K | 369K | Jan 1993 – Jun 2024 |
| Williams, Maude, Etal -A- O-2-2527 | Hilcorp Energy Company only | Lake Pasture (FS-523) | Refugio | 12 | 379K | 658K | Jan 1993 – Jan 2017 |
| Williams, Maude, Etal, -A- O-2-2589 | Hilcorp Energy Company only | Tom Oconnor (5500 Sand) | Refugio | 9 | 323K | 573K | Jan 1993 – Apr 2025 |
| Williams, Maude, et al -A- O-2-2906 | Hilcorp Energy Company only | Tom Oconnor (5450 Sand) | Refugio | 15 | 314K | 643K | Jan 1993 – Mar 2026 |
| Williams, Maude et al "A" O-2-8842 | Hilcorp Energy Company only | Lake Pasture (FT-759) | Refugio | 3 | 255K | 432K | Mar 2004 – Sep 2018 |
| Maude Williams et al 'A' O-2-11339 | Hilcorp Energy Company only | Lake Pasture (FS-503) | Refugio | 2 | 183K | 400K | Mar 2017 – Apr 2026 |
| Williams, Maude, Etal -A- O-2-1548 | Hilcorp Energy Company only | Tom Oconnor | Refugio | 25 | 160K | 372K | Jan 1993 – Oct 2016 |
| Williams, Maude et al -A- O-2-5125 | Hilcorp Energy Company only | Lake Pasture (FT-730) | Refugio | 4 | 131K | 365K | Jan 1993 – Feb 2006 |
| Williams, Maude, Etal -A- O-2-2526 | Hilcorp Energy Company only | Lake Pasture (FT-560) | Refugio | 4 | 89.7K | 207K | Jan 1993 – Aug 2020 |
| Williams, Maude Etal -B- O-2-5559 | Hilcorp Energy Company only | Tom Oconnor (5650' Sand) | Refugio | 8 | 73.5K | 156K | Jun 1993 – Jul 2015 |
| Williams, Maude et al -C- O-2-1547 | Hilcorp Energy Company only | Tom Oconnor | Refugio | 7 | 68K | 70.6K | Jan 1993 – Oct 2005 |
| Williams, Maude, Etal -B- O-2-1546 | Hilcorp Energy Company only | Tom Oconnor | Refugio | 10 | 67.9K | 115K | Jan 1993 – Feb 2024 |
| Maude Williams et al "C" O-2-9440 | Hilcorp Energy Company only | Tom Oconnor (5800) | Refugio | 1 | 64.8K | 38.3K | Jun 2010 – Jul 2016 |
| Williams, Maude et al "A" O-2-7891 | Hilcorp Energy Company only | Lake Pasture (FS-541) | Refugio | 2 | 58.3K | 199K | Jul 1993 – Jul 2001 |
| Williams, Maude et al "A" O-2-7940 | Quintana Pet. Corp. only | Lake Pasture (FT-750) | Refugio | 1 | 46.3K | 64.3K | Jan 1994 – Oct 1996 |
| Williams, Maude et al -A- O-2-5098 | Quintana Pet. Corp. only | Lake Pasture (FT-585) | Refugio | 5 | 41.6K | 93.8K | Jan 1993 – Sep 1996 |
| Williams, Maude et al "B" O-2-7714 | Hilcorp Energy Company only | Tom Oconnor (5900 Sand) | Refugio | 5 | 40.8K | 109K | Jan 1993 – Mar 2005 |
| Maude Williams et al 'A' O-2-11337 | Hilcorp Energy Company only | Tom O'Connor (5350 Sand) | Refugio | 2 | 35.9K | 2.18K | Jul 2016 – Jun 2023 |
| Williams, Maude, et al -B- O-2-4890 | Hilcorp Energy Company only | Tom Oconnor (5450 Sand) | Refugio | 4 | 35.4K | 78K | Jan 1993 – Nov 2024 |
| Williams, Maude et al "B" O-2-8177 | Hilcorp Energy Company only | Tom Oconnor (5425 Sand) | Refugio | 1 | 34.4K | 101K | Jun 1996 – Feb 2011 |
| Williams, Maude, Etal -A- O-2-2534 | Hilcorp Energy Company only | Lake Pasture (FS-538) | Refugio | 3 | 31.5K | 237K | Jan 1993 – Mar 2004 |
| Williams, Maude et al "A" O-2-7539 | Hilcorp Energy Company only | Lake Pasture (FS-540) | Refugio | 1 | 29.8K | 120K | Jan 1993 – Sep 2003 |
| Williams, Maude et al "B" O-2-7688 | Hilcorp Energy Company only | Tom O'Connor (5350 Sand) | Refugio | 3 | 28.3K | 91.3K | Jan 1993 – May 2010 |
| Maude Williams et al 'A' O-2-10422 | Hilcorp Energy Company only | Lake Pasture (FT-585) | Refugio | 2 | 26.4K | 93.3K | Dec 2012 – Nov 2024 |
| Williams, Maude et al "A" O-2-8974 | Hilcorp Energy Company only | Lake Pasture (FT-570) | Refugio | 1 | 22.7K | 72.6K | May 2005 – Jun 2013 |
| Williams, Maude et al "A" O-2-8825 | Hilcorp Energy Company only | Lake Pasture (FT-750) | Refugio | 1 | 21K | 40.7K | Nov 2003 – Jul 2004 |
| Maude Williams et al 'B' O-2-11161 | Hilcorp Energy Company only | Tom Oconnor (5500 Sand) | Refugio | 3 | 17.1K | 8.96K | Nov 2015 – Nov 2023 |
| Williams, Maude et al "A" O-2-8998 | Hilcorp Energy Company only | Lake Pasture (FT-585) | Refugio | 1 | 17.1K | 89.9K | Sep 2005 – Apr 2010 |
| Williams, Maude Etal -B- O-2-8737 | Hilcorp Energy Company only | Tom Oconnor (8000) | Refugio | 1 | 15.7K | 294K | Aug 2002 – Sep 2022 |
| Williams, Maude et al "A" O-2-9077 | Hilcorp Energy Company only | Lake Pasture (FT-740) | Refugio | 1 | 13.7K | 45.1K | Jun 2006 – Apr 2008 |
| Maude Williams et al 'A' O-2-10857 | Hilcorp Energy Company only | Lake Pasture (FT-750) | Refugio | 1 | 13.1K | 15.9K | Sep 2014 – Aug 2015 |
| Williams, Maude et al "A" O-2-8756 | Hilcorp Energy Company only | Tom O'Connor (4150) | Refugio | 1 | 11.7K | 6.34K | Dec 2002 – May 2004 |
| Williams, Maude et al "A" G-2-205741 | Hilcorp Energy Company only | Lake Pasture (Vicksburg 8100) | Refugio | 1 | 10.5K | 836K | Sep 2004 – Jul 2015 |
| Maude Williams et al -A- O-2-11162 | Hilcorp Energy Company only | Tom Oconnor (5200, East) | Refugio | 1 | 10.2K | 2.91K | Dec 2015 – Apr 2026 |
| Williams, Maude et al 'A' O-2-11406 | Hilcorp Energy Company only | Lake Pasture (FT-740) | Refugio | 2 | 9.34K | 41.7K | Sep 2017 – Feb 2019 |
| Williams, Maude et al "A" O-2-7557 | Hilcorp Energy Company only | Lake Pasture (FT-785) | Refugio | 1 | 9.06K | 78.6K | May 1999 – Aug 2003 |
| Williams, Maude et al "A" O-2-8045 | Hilcorp Energy Company only | Lake Pasture (FS-536) | Refugio | 2 | 8.91K | 41.6K | Feb 1995 – Apr 2003 |
| Williams, Maude Etal -A- O-2-12850 | Hilcorp Energy Company only | Lake Pasture (FT-562) | Refugio | 1 | 7.92K | 0 | Jun 2024 – Oct 2025 |
| Williams, Maude Etal -B- O-2-5525 | Hilcorp Energy Company only | Tom Oconnor (5625 Sand) | Refugio | 6 | 6.9K | 8.95K | May 1993 – Nov 1997 |
| Williams, Maude et al "A" O-2-8655 | Hilcorp Energy Company only | Lake Pasture (FT-566) | Refugio | 3 | 6.67K | 54.2K | Jun 2001 – Jun 2021 |
| Williams, Maude et al "A" G-2-214334 | Hilcorp Energy Company only | Lake Pasture (Vicksburg 8100) | Refugio | 1 | 6.45K | 1.2M | Aug 2005 – Jan 2021 |
| Williams, Maude et al 'A' O-2-8521 | Quintana Pet. Corp. only | Tom O'Connor (5730, East) | Refugio | 11 | 6.26K | 13.4K | Mar 2000 – Aug 2000 |
| Williams Maude et al -A- O-2-8057 | Hilcorp Energy Company only | Tom Oconnor (5400 Sand) | Refugio | 3 | 4.84K | 10.3K | Feb 1997 – Nov 2016 |
| Maude Williams et al 'A' O-2-10985 | Hilcorp Energy Company only | Lake Pasture (FS-550) | Refugio | 2 | 4.26K | 13.7K | Jul 2015 – Jun 2018 |
| Williams, Maude et al "A" O-2-9006 | Hilcorp Energy Company only | Lake Pasture (FS-517) | Refugio | 2 | 4.21K | 7.8K | Nov 2005 – Dec 2007 |
| Williams, Maude et al "C" O-2-8549 | Quintana Pet. Corp. only | Tom O'Connor (5730, East) | Refugio | 2 | 3.79K | 4.04K | Feb 2000 – Aug 2000 |
| Maude Williams et al 'A' O-2-11312 | Hilcorp Energy Company only | Lake Pasture (FT-750) | Refugio | 1 | 3.64K | 16.8K | Oct 2016 – Jul 2017 |