| Parker J. E. #95W42-003-34282 | Hilcorp Energy Company only | AndrewsMartin (Second Simpson Sd.) | Shut inOil | 8,900 | Oct 10, 2014 | 2 | May 2014 |
| Halley S. #1142-495-05503 | Permex Petroleum Corporation only | WinklerEmperor (Devonian) | Temporarily abandonedGas | 11,514 | Sep 22, 2014 | 2 | Oct 2019 |
| Obrien G. W. Etal #1218D42-475-32214 | Two P Partners LLC only | WardWard-Estes North (Holt) | ActiveInjection | 15,850 | Jun 14, 2013 | 5 | Aug 2026 |
| Waymobetta #242-483-20000 | Blue Dolphin Production LLCpermitted by · no operator of record | WheelerCarman (Simpson) | Plugged | 12,810 | Sep 3, 2010 | 2 | — |
| Johnson 20 State #142-371-38448 | Earnest Producing Corporation only | PecosClarey Connell (Simpson) Sand | Shut inOil | 5,600 | Oct 3, 2008 | 1 | May 2017 |
| Migl-Quinn #442-285-32574 | Fowler Oil & Gas LLC only | LavacaSpeaks SW. (Simpson) | Temporarily abandonedGas | 17,500 | Apr 18, 2008 | 4 | Apr 2008 |
| Hoover #212842-357-31623 | Unbridled Resources LLC only | OchiltreeTwitchell (Chester) | Temporarily abandonedGas | 10,950 | Jun 21, 2007 | 2 | Aug 2020 |
| Simpson W. M. #142-321-31941 | Sue-Ann Operating L.C. only | MatagordaPheasant (F-20) | PluggedGas | 9,300 | Sep 28, 2006 | 2 | Nov 2006 |
| Turkey Track #121642-233-33073 | Latigo Petroleum Texas, LPpermitted by · no operator of record | HutchinsonShire (Simpson) | Plugged | 9,800 | Apr 3, 2006 | 1 | — |
| University 11 Sec 1 #2A42-003-00290 | OXY USA EOR LLC only | AndrewsMartin (Second Simpson Sd.) | PluggedOil | 8,923 | Nov 23, 2005 | 6 | Aug 2026 |
| Univ. 11 Sec. -1- #1A42-003-00433 | Hilcorp Energy Company only | AndrewsMartin (Consolidated) | Shut inOil | 9,060 | Nov 23, 2005 | 4 | Aug 2026 |
| Migl-Mitchell #342-285-32580 | Fowler Oil & Gas LLC only | LavacaSpeaks SW. (Simpson) | ActiveGas | 17,500 | Apr 30, 2005 | 3 | Aug 2026 |
| Thomas #142-321-31856 | Noble Energy Inc only | MatagordaPheasant (Simpson) | PluggedGas | 9,500 | Feb 3, 2003 | 5 | Mar 2003 |
| Freeman #942-285-32811 | Fowler Oil & Gas LLC only | LavacaSpeaks SW. (Rainbow) | ActiveGas | 14,871 | Jul 29, 2002 | 3 | Aug 2026 |
| Pierce #142-321-31831 | Dallas Production Inc. only | MatagordaBlessing (F-14) | PluggedOil | 10,400 | Jul 22, 2002 | 5 | Feb 2004 |
| Maxwell 18 #342-495-32904 | Permex Petroleum Corporation only | WinklerEmperor (Simpson) | ActiveGas | 11,597 | Jun 27, 2002 | 1 | Dec 2025 |
| McIntyre #142-371-10798 | Chisos Operating Inc. only | PecosOates NE. (Devonian) | PluggedGas | 17,000 | Nov 5, 2001 | 4 | Mar 2019 |
| Pilgreen #942-285-32800 | Fowler Oil & Gas LLC only | LavacaSpeaks SW. (Rainbow) | Temporarily abandonedGas | 14,607 | Oct 15, 2001 | 2 | Sep 2009 |
| Halley S. M. #1301HZ42-495-32786 | Permex Petroleum Corporation only | WinklerWeiner (McKee) | ActiveGas | 11,630 | Feb 16, 2001 | 5 | Sep 2023 |
| Halley S. #1242-495-32673 | Permex Petroleum Corporation only | WinklerWeiner (McKee) | ActiveGas | 11,428 | Sep 7, 2000 | 2 | Oct 2023 |
| Freeman #842-285-32802 | Fowler Oil & Gas LLC only | LavacaSpeaks SW. (Simpson) | ActiveGas | 14,780 | Jun 28, 2000 | 3 | Jul 2026 |
| Halley S. M. #60142-495-32801 | Permex Petroleum Corporation only | WinklerEmperor (Simpson) | ActiveGas | 11,074 | Jun 19, 2000 | 2 | Nov 2025 |
| Freeman #542-285-32775 | Fowler Oil & Gas LLC only | LavacaSpeaks SW. (Simpson) | ActiveGas | 15,203 | Feb 14, 2000 | 1 | Aug 2026 |
| Halley S. #1342-495-32692 | Basin Oil & Gas Operating LLC only | WinklerEmperor (Simpson) | ActiveGas | 11,400 | Dec 6, 1999 | 3 | Nov 2025 |
| Freeman #142-285-32687 | Fowler Oil & Gas LLC only | LavacaSpeaks SW. (Simpson) | ActiveGas | 14,720 | Feb 24, 1999 | 3 | Aug 2026 |
| Maxwell 18 #142-495-32746 | Permex Petroleum Corporation only | WinklerEmperor (Simpson) | ActiveGas | 11,779 | Feb 4, 1999 | 1 | Nov 2025 |
| Trull R. B. et al #142-321-31756 | Deep Rock Resources Inc. only | MatagordaAshby (Simpson) | PluggedGas | 9,600 | Mar 6, 1998 | 2 | Jul 2002 |
| Hefley -a- #1 U42-483-80460 | Diversified Production LLC only | WheelerGageby Creek (Hunton) | ActiveGas | 16,408 | Nov 17, 1997 | 1 | Aug 2026 |
| Holt-Eisenhauer a #142-233-32687 | Conocophillips Company only | HutchinsonMunchi (Simpson) | PluggedOil | 8,000 | Sep 12, 1996 | 1 | Feb 2002 |
| McKnight M. B. #12342-103-32469 | Williams Oil Company only | CraneSand Hills (Judkins) | ActiveOil | 6,460 | May 14, 1996 | 5 | Aug 2026 |
| Cone Rachel #142-337-32978 | E-Z Disposal Service Inc. only | MontagueCone (Simpson Dolomite) | PluggedOil | 7,300 | Jun 7, 1994 | 1 | May 2010 |
| Crain & Griffith #1542-215-01100 | Southwest Oil & Land Inc. only | HidalgoMercedes ( Simpson Sand) | PluggedOil | 9,015 | Aug 14, 1991 | 2 | Dec 1994 |
| Hoover #112842-357-31581 | Unbridled Resources LLC only | OchiltreeAlpar-Falcon (Chester) | Temporarily abandonedGas | 10,950 | Oct 18, 1990 | 3 | Jul 2025 |
| Gunter-Sisson Unit #1 U42-321-01907 | Magnum Engineering Company only | MatagordaPheasant (Simpson) | PluggedGas | 9,555 | Jun 20, 1990 | 1 | — |
| Alcorn #142-077-34295 | Fagadau Energy Corporationpermitted by · no operator of record | ClayAlcorn (Simpson Lime) | Not on schedule | 6,300 | Feb 27, 1989 | 2 | — |
| Tany #142-077-00505 | Schlachter David A. only | ClayBryant (Simpson) | Not on scheduleOil | 3,100 | Dec 30, 1988 | 1 | — |
| Big State Ranch D #142-105-35537 | Regal Petroleum Services only | CrockettSimpson | PluggedOil | 2,200 | Aug 8, 1988 | 2 | — |
| Couch Estate #242-105-35534 | Scout Energy Management LLC only | CrockettUniversity 31 (Simpson) | Temporarily abandonedGas | 9,654 | Jul 22, 1988 | 1 | Dec 2015 |
| Falcon H2-127 Miller #242-357-31754 | New London Oil Inc. only | OchiltreeAlpar-Falcon (Simpson) | PluggedOil | 10,950 | Apr 26, 1988 | 2 | — |
| Hoover -137- #242-357-31705 | Batton Oil & Gas LLC only | OchiltreeAlpar-Falcon (Chester) | ActiveGas | 10,950 | Feb 3, 1988 | 2 | Jul 2026 |
| Big State Ranch "2A" #342-105-35486 | DCP, Inc.permitted by · no operator of record | CrockettSimpson | Not on schedule | 2,500 | Dec 31, 1987 | 1 | — |
| Big State Ranch 2B #142-105-35474 | Hoover Petroleum Company LLC only | CrockettSimpson | Shut inOil | 2,225 | Dec 11, 1987 | 1 | Aug 2022 |
| Big State 18-2 #142-105-35434 | Hoover Petroleum Company LLC only | CrockettSimpson | ActiveOil | 2,305 | Sep 2, 1987 | 1 | Jul 2026 |
| Big State 7-10 #242-105-35414 | Hoover Petroleum Company LLC only | CrockettSimpson | ActiveOil | 2,520 | Aug 3, 1987 | 1 | Jul 2026 |
| Big State Ranch -2- #142-105-35378 | Hoover Petroleum Company LLC only | CrockettSimpson | ActiveOil | 2,500 | Jun 15, 1987 | 1 | Jul 2026 |
| Big State Ranch 10-7R #142-105-35384 | Hoover Petroleum Company LLC only | CrockettSimpson | ActiveOil | 1,600 | Jun 15, 1987 | 1 | May 2026 |
| Big State Ranch 2A #242-105-35379 | Hoover Petroleum Company LLC only | CrockettSimpson | ActiveOil | 2,397 | Jun 10, 1987 | 1 | Jul 2026 |
| Lina C #242-357-31853 | Phillips Petroleum Company only | OchiltreeEllis Ranch (Simpson) | PluggedOil | 11,750 | Nov 12, 1986 | 1 | — |
| Lockhart #442-003-05241 | Winn Operating LLC only | AndrewsMartin (Second Simpson Sd.) | ActiveOil | 8,857 | Sep 12, 1986 | 1 | Aug 2026 |
| Abbott S. A. #542-239-02164 | McGowan Working Partners Inc. only | JacksonLolita Deep (Simpson 8500) | Temporarily abandonedGas | 8,804 | Apr 29, 1986 | 2 | May 1997 |