| Argos #1HHZ42-495-34208 | Hilcorp Energy Company only | WinklerEmperor (Simpson) | Shut inOil | 16,000 | Aug 14, 2018 | 3 | Jul 2026 |
| Halley S. M. -B- #5842-495-33943 | Basin Oil & Gas Operating LLC only | WinklerEmperor (Simpson) | Temporarily abandonedGas | 11,600 | Oct 18, 2017 | 1 | Jul 2026 |
| Harvey Renger Gas Unit #442-285-33248 | Merit Energy Company only | LavacaSpeaks SW. (Simpson) | ActiveGas | 17,000 | Feb 10, 2014 | 2 | Jul 2026 |
| Freeman #1342-285-33424 | XTO Energy Inc. only | LavacaSpeaks SW. (Simpson) | Not on scheduleGas | 15,200 | Apr 30, 2013 | 2 | Jul 2026 |
| Waymobetta #142-483-32506 | Heritage Petroleum Inc. only | WheelerCarman (Simpson) | Not on scheduleGas | 13,000 | Feb 9, 2011 | 2 | Jul 2026 |
| Brooks #142-181-31464 | Atoka Operating Inc. only | GraysonBig Mineral Creek (Simpson) | PluggedOil | 10,614 | May 13, 2010 | 2 | May 2021 |
| Migl-Quinn #942-285-33478 | Karper Oil & Gas Corporation only | LavacaSpeaks SW. (Simpson) | Temporarily abandonedGas | 15,500 | May 14, 2009 | 2 | Jul 2026 |
| Johnson 20 State #242-371-38531 | Earnest Producing Corporation only | PecosClarey Connell (Simpson) Sand | Shut inOil | 6,000 | May 11, 2009 | 1 | Jul 2026 |
| Emperor 12 #1HHZ42-495-33316 | EOG Resources Inc. only | WinklerEmperor (Simpson) | ActiveOil | 12,200 | Nov 25, 2008 | 1 | Jul 2026 |
| Johnson 20 State #142-371-38448 | Earnest Producing Corporation only | PecosClarey Connell (Simpson) Sand | Shut inOil | 6,000 | Oct 3, 2008 | 1 | Jul 2026 |
| Ryser #142-147-30113 | Kim Recovery Enterprises LLC only | FanninHoney Grove (Simpson Sand) | PluggedOil | 10,500 | Mar 5, 2008 | 1 | Jul 2026 |
| Hoover #212842-357-31623 | Plains Exploration & Prod. Co. only | OchiltreeAlpar-Falcon (Simpson) | Not on scheduleGas | 10,950 | Jun 21, 2007 | 2 | Jul 2026 |
| Pure #260142-495-33242 | Permex Petroleum Corporation only | WinklerEmperor (Simpson) | ActiveGas | 11,300 | Feb 26, 2007 | 1 | Jul 2026 |
| Freeman #1242-285-33367 | Remora Management LLC only | LavacaSpeaks SW. (Simpson) | Temporarily abandonedGas | 15,300 | Jan 30, 2007 | 1 | Jul 2026 |
| Ricker State #142-389-30230 | Thompson J. Cleo only | ReevesGolden Corral (Simpson) | PluggedOil | 11,500 | Oct 31, 2006 | 1 | Nov 2008 |
| Simpson W. M. #142-321-31941 | Sue-Ann Operating L.C. only | MatagordaPheasant (Simpson) | PluggedGas | 9,300 | Sep 28, 2006 | 2 | Sep 2009 |
| Emperor 24 #142-495-32939 | Permex Petroleum Corporation only | WinklerEmperor (Simpson) | ActiveGas | 12,000 | Mar 16, 2004 | 1 | Jul 2026 |
| Zalman #442-285-33052 | Crescent Energy Operating LLC only | LavacaSpeaks SW. (Simpson) | Temporarily abandonedGas | 19,000 | Dec 9, 2003 | 2 | Jul 2026 |
| Coble 64 #142-233-32983 | Palo Duro Resources LLC only | HutchinsonShire (Simpson) | Shut inOil | 10,000 | Nov 24, 2003 | 1 | Jul 2026 |
| Thomas #142-321-31856 | Noble Energy Inc only | MatagordaPheasant (Simpson) | PluggedGas | 9,500 | Feb 3, 2003 | 5 | Oct 2003 |
| Maxwell 13 #142-495-05207 | Chevron U. S. A. Inc. only | WinklerEmperor (Simpson) | PluggedGas | 11,727 | Jan 7, 2003 | 2 | Nov 2021 |
| Maxwell 14 #142-495-32914 | Chevron U. S. A. Inc. only | WinklerEmperor (Simpson) | Not on scheduleOil | 11,700 | Jan 7, 2003 | 3 | Jul 2026 |
| Gill #106242-393-31498 | Huber J. M. Corporation only | RobertsMiami Bluffs (Simpson) | Not on scheduleGas | 14,200 | Sep 18, 2002 | 2 | Jul 2026 |
| Freeman #942-285-32811 | Dominion Oklahoma Texas E&P Inc only | LavacaSpeaks SW. (Simpson) | Not on scheduleGas | 15,100 | Jul 29, 2002 | 3 | Jul 2026 |
| Maxwell 18 #342-495-32904 | Permex Petroleum Corporation only | WinklerEmperor (Simpson) | ActiveGas | 11,700 | Jun 27, 2002 | 1 | Jul 2026 |
| McIntyre #142-371-10798 | Pure Resources L.P. only | PecosOates NE. (Simpson) | PluggedGas | 17,000 | Nov 5, 2001 | 4 | Jan 2021 |
| Cowden #142-495-32883 | Camterra Resources Inc. only | WinklerEmperor (Simpson) | ActiveGas | 12,000 | Aug 3, 2001 | 2 | Jul 2026 |
| Maxwell 23 #342-495-32865 | Permex Petroleum Corporation only | WinklerEmperor (Simpson) | Temporarily abandonedGas | 11,600 | Jun 6, 2001 | 1 | Jul 2026 |
| Freeman #842-285-32802 | Fowler Oil & Gas LLC only | LavacaSpeaks SW. (Simpson) | ActiveGas | 15,000 | Jun 28, 2000 | 3 | Jul 2026 |
| Freeman #542-285-32775 | Fowler Oil & Gas LLC only | LavacaSpeaks SW. (Simpson) | ActiveGas | 15,500 | Feb 14, 2000 | 1 | Jul 2026 |
| Freeman #142-285-32687 | Fowler Oil & Gas LLC only | LavacaSpeaks SW. (Simpson) | ActiveGas | 15,500 | Feb 24, 1999 | 3 | Jul 2026 |
| Maxwell 18 #142-495-32746 | Permex Petroleum Corporation only | WinklerEmperor (Simpson) | ActiveGas | 12,500 | Feb 4, 1999 | 1 | Jul 2026 |
| Pilgreen #142-285-32624 | Dominion Oklahoma Texas E&P Inc only | LavacaSpeaks SW. (Simpson) | PluggedGas | 15,500 | Dec 1, 1998 | 2 | Nov 2003 |
| Trull R. B. et al #142-321-31756 | Deep Rock Resources Inc. only | MatagordaAshby (Simpson) | PluggedGas | 9,600 | Mar 6, 1998 | 2 | Feb 2021 |
| Holt-Eisenhauer a #142-233-32687 | Conocophillips Company only | HutchinsonMunchi (Simpson) | PluggedOil | 8,000 | Sep 12, 1996 | 1 | Mar 2005 |
| Cone Rachel #142-337-32978 | E-Z Disposal Service Inc. only | MontagueCone (Simpson Dolomite) | PluggedOil | 7,300 | Jun 7, 1994 | 1 | Jul 2026 |
| Hoover #112842-357-31581 | Plains Exploration & Prod. Co. only | OchiltreeAlpar-Falcon (Simpson) | Not on scheduleGas | 10,950 | Oct 18, 1990 | 3 | Jul 2026 |
| Big State Ranch D #142-105-35537 | Regal Petroleum Services only | CrockettSimpson | PluggedOil | 2,200 | Aug 8, 1988 | 2 | Oct 1998 |
| Couch Estate #242-105-35534 | Scout Energy Management LLC only | CrockettUniversity 31 (Simpson) | Temporarily abandonedGas | 10,000 | Jul 22, 1988 | 1 | Jul 2026 |
| Hoover -137- #242-357-31705 | Falcon Petroleum Co. only | OchiltreeAlpar-Falcon (Simpson) | Not on scheduleGas | 10,950 | Feb 3, 1988 | 2 | Jul 2026 |
| Big State Ranch 2B #142-105-35474 | Hoover Petroleum Company LLC only | CrockettSimpson | Shut inOil | 2,500 | Dec 11, 1987 | 1 | Jul 2026 |
| Big State 18-2 #142-105-35434 | Hoover Petroleum Company LLC only | CrockettSimpson | ActiveOil | 2,200 | Sep 2, 1987 | 1 | Jul 2026 |
| Big State 7-10 #242-105-35414 | Hoover Petroleum Company LLC only | CrockettSimpson | ActiveOil | 3,500 | 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 | 1,700 | Jun 15, 1987 | 1 | Jul 2026 |
| Big State Ranch 2A #242-105-35379 | Hoover Petroleum Company LLC only | CrockettSimpson | ActiveOil | 2,500 | 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 | Sep 2000 |
| Lockhart #442-003-05241 | Winn Operating LLC only | AndrewsMartin (Second Simpson Sd.) | ActiveOil | 8,857 | Sep 12, 1986 | 1 | Jul 2026 |
| Hoover -128- #342-357-31743 | Unbridled Resources LLC only | OchiltreeAlpar-Falcon (Simpson) | Shut inOil | 10,950 | Aug 13, 1985 | 1 | Jul 2026 |
| Miller #1-127 #142-357-31700 | Falcon Petroleum Co. only | OchiltreeAlpar-Falcon (Simpson) | PluggedOil | 10,950 | Apr 4, 1985 | 1 | — |