| Engleman Unit #142-051-31308 | SBJ Energy Partners L.L.C. only | BurlesonCaldwell (Austin Chalk) | ActiveOil | 8,100 | Apr 8, 2021 | 2 | Apr 2026 |
| Newberry #4HRHZ42-041-31377 | Wildfire Energy Operating LLC only | BrazosGiddings (Austin Chalk-3) | ActiveOil | 7,071 | Jul 28, 2010 | 6 | Mar 2026 |
| Warren Thomas Unit #142-051-32289 | Wildfire Energy Operating LLC only | BurlesonGiddings (Buda) | ActiveGas | 8,349 | Oct 17, 2008 | 3 | Jan 2024 |
| Willie Lee Tarver Unit C #142-051-31975 | Chesapeake Operating L.L.C. only | BurlesonGiddings (Eagleford) | PluggedOil | 8,450 | Apr 10, 2008 | 3 | Apr 2020 |
| Childers A.B. Jr. #142-051-31848 | Apache Corporation only | BurlesonCaldwell (Austin Chalk) | PluggedOil | 8,450 | Feb 14, 2008 | 2 | Jan 2008 |
| Childers A.B. Jr. #2HZ42-051-32906 | Apache Corporation only | BurlesonCaldwell (Austin Chalk) | PluggedOil | 8,500 | Oct 9, 2007 | 5 | Jan 2008 |
| Box Kelly Unit #142-051-31423 | Wildfire Energy Operating LLC only | BurlesonCooks Point (Woodbine) | Shut inOil | 8,271 | Sep 27, 2007 | 4 | Mar 2026 |
| Tarver Willie Lee #142-051-31960 | Wildfire Energy Operating LLC only | BurlesonCooks Point (Woodbine) | Shut inOil | 8,309 | Sep 10, 2007 | 4 | Mar 2022 |
| Willie Lee Tarver a Unit #142-051-32000 | Wildfire Energy Operating LLC only | BurlesonCooks Point (Woodbine) | PluggedOil | 8,450 | Sep 6, 2007 | 6 | May 2024 |
| Tarver Willie Lee Unit B #1B42-051-32083 | Apache Corporation only | BurlesonCaldwell (Austin Chalk) | PluggedOil | 8,375 | Jul 26, 2007 | 4 | Oct 2003 |
| Leggio-Schubert #1REHZ42-051-31207 | Proline Energy Resources Inc only | BurlesonCaldwell (Austin Chalk) | Shut inOil | 8,430 | Aug 17, 1999 | 3 | May 2022 |
| Varisco Estate #242-041-31204 | Wildfire Energy Operating LLC only | BrazosGiddings (Buda) | Shut inOil | 7,761 | Aug 9, 1999 | 4 | Apr 2002 |
| Crook Unit #3REHZ42-051-33098 | Cox & Perkins Exploration Inc. only | BurlesonCaldwell (Austin Chalk) | PluggedOil | 10,200 | Aug 4, 1999 | 3 | Oct 2003 |
| Newberry #342-041-31361 | Anadarko E&P Company LP only | BrazosCaldwell NE (Georgetown) | PluggedOil | 9,000 | Apr 15, 1999 | 3 | Dec 2002 |
| Suda #2HHZ42-051-31841 | Cago Inc. only | BurlesonDiamond-Bolum (Georgetown) | PluggedGas | 10,000 | Oct 6, 1997 | 4 | Aug 2004 |
| R & L Unit #1 HHZ42-051-30804 | XTO Energy Inc. only | BurlesonGiddings (Austin Chalk-3) | PluggedOil | 12,000 | Jul 2, 1997 | 2 | Aug 2012 |
| Gold Pertl #1 #1HZ42-051-30455 | Kouatli Aiman M. only | BurlesonCaldwell (Austin Chalk) | ActiveOil | 8,009 | Apr 8, 1997 | 4 | Mar 2026 |
| Cecelia-Bedford Unit #1HZ42-051-32823 | Outlaw Oil LLC only | BurlesonGiddings (Austin Chalk Gas) | ActiveGas | 8,700 | Oct 17, 1996 | 3 | Apr 2026 |
| Hurry-Britt Unit #242-051-31037 | Proline Energy Resources Inc only | BurlesonCaldwell (Austin Chalk) | Shut inOil | 8,212 | Aug 7, 1996 | 4 | Jan 2026 |
| Supak Mary #1HZ42-051-32919 | Wildfire Energy Operating LLC only | BurlesonGiddings (Austin Chalk-3) | ActiveOil | 11,935 | Jan 10, 1996 | 2 | Mar 2026 |
| Scarmado P.J. #1 HHZ42-051-31168 | Poff H. Bryan only | BurlesonGiddings (Austin Chalk-3) | PluggedOil | 9,800 | Apr 24, 1995 | 3 | Dec 1997 |
| Baron John L. #1HZ42-051-32215 | Quinoco Petroleum Inc. only | BurlesonCaldwell (Austin Chalk) | PluggedOil | 8,700 | Mar 24, 1995 | 2 | — |
| Hyvl Unit #1HHZ42-051-33443 | Wildfire Energy Operating LLC only | BurlesonCaldwell (Austin Chalk) | Temporarily abandonedGas | 10,619 | Sep 15, 1994 | 2 | Oct 2019 |
| Mahlmann Walter #142-051-30561 | Chesapeake Operating L.L.C. only | BurlesonCaldwell (Austin Chalk) | PluggedOil | 8,200 | Jun 22, 1994 | 3 | Sep 2020 |
| Schrader #142-051-32104 | Cox & Perkins Exploration Inc. only | BurlesonCaldwell (Austin Chalk) | PluggedOil | 9,700 | Feb 7, 1994 | 2 | Jun 1994 |
| Buckman #142-051-32860 | Delaware Ecco Petroleum Inc. only | BurlesonCaldwell (Austin Chalk) | PluggedOil | 8,000 | Nov 22, 1993 | 2 | Jun 1995 |
| Vychopen a #3HHZ42-051-33402 | Mag Exploration LLC only | BurlesonCaldwell (Austin Chalk) | Shut inOil | 12,191 | Oct 12, 1993 | 2 | Nov 2022 |
| Luther Unit #142-041-31252 | Lonestar Pluggers Inc. only | BrazosCaldwell (Austin Chalk) | PluggedOil | 8,100 | Oct 6, 1993 | 2 | Sep 1999 |
| McNeese A. G. #5HZ42-051-33106 | Proline Energy Resources Inc only | BurlesonCaldwell (Austin Chalk) | ActiveOil | 10,556 | Oct 6, 1993 | 4 | Jan 2026 |
| Luther a #142-041-31305 | Wildfire Energy Operating LLC only | BrazosCaldwell (Austin Chalk) | Shut inOil | 7,967 | Jul 16, 1993 | 2 | Nov 2015 |
| Hurry-Britt Unit #1HZ42-051-33314 | Proline Energy Resources Inc only | BurlesonCaldwell (Austin Chalk) | ActiveOil | 10,689 | Jun 24, 1993 | 3 | Jan 2026 |
| Frankie #3HHZ42-051-32897 | Kouatli Aiman M. only | BurlesonGiddings (Austin Chalk Gas) | Temporarily abandonedGas | 10,046 | Jan 20, 1993 | 3 | Mar 2026 |
| Marek Emil #1HZ42-051-32649 | Geosouthern Energy Corporation only | BurlesonGiddings (Austin Chalk Gas) | PluggedGas | 10,900 | Dec 9, 1992 | 3 | Aug 2016 |
| Leggio-Schubert #3HZ42-051-33335 | Proline Energy Resources Inc only | BurlesonCaldwell (Austin Chalk) | Shut inOil | 11,978 | Sep 9, 1992 | 1 | May 2022 |
| Newberry #242-041-31300 | Wildfire Energy Operating LLC only | BrazosCaldwell (Austin Chalk) | Shut inOil | 7,700 | Aug 24, 1992 | 3 | Dec 2002 |
| Varisco Estate #142-041-31203 | Anadarko E&P Company LP only | BrazosCaldwell (Austin Chalk) | PluggedOil | 9,000 | Jun 12, 1992 | 2 | Aug 1995 |
| Morello Buddy #142-041-31210 | Howell Petroleum Corporation only | BrazosCaldwell (Austin Chalk) | PluggedOil | 9,000 | Jun 12, 1992 | 2 | Sep 1999 |
| Bryan Utilities Lake #342-041-31064 | Howell Petroleum Corporation only | BrazosCaldwell (Austin Chalk) | PluggedOil | 9,000 | Apr 29, 1992 | 2 | — |
| Newcomb-Matcek #1 HHZ42-051-33285 | Proline Energy Resources Inc only | BurlesonCaldwell (Austin Chalk) | Shut inOil | 11,509 | Nov 1, 1991 | 1 | Jan 2026 |
| Ratcliffe-Kidd #1HHZ42-051-33275 | Proline Energy Resources Inc only | BurlesonCaldwell (Austin Chalk) | Shut inOil | 11,245 | Sep 16, 1991 | 2 | May 2022 |
| Giesenschlag W.H. #342-051-30991 | Christico Petroleum Company only | BurlesonCaldwell (Austin Chalk) | PluggedOil | 9,500 | Aug 14, 1991 | 2 | — |
| Bird #2HZ42-051-33251 | Proline Energy Resources Inc only | BurlesonCaldwell (Austin Chalk) | Temporarily abandonedGas | 8,092 | Jun 21, 1991 | 1 | Jul 2024 |
| Hodrick #1HZ42-051-30456 | Lometa Petroleum Corporation only | BurlesonCaldwell (Austin Chalk) | PluggedOil | 9,100 | Jun 18, 1991 | 2 | — |
| Gold S. #2HZ42-051-33239 | Warren Production Services only | BurlesonCaldwell (Austin Chalk) | PluggedOil | 10,500 | May 15, 1991 | 1 | Oct 2025 |
| Ratcliffe-Hyvl Unit #1HZ42-051-33199 | Cox & Perkins Exploration Inc. only | BurlesonCaldwell (Austin Chalk) | PluggedOil | 12,100 | Feb 13, 1991 | 1 | Feb 2007 |
| Crook-Hanover Unit #1 HHZ42-051-33175 | Proline Energy Resources Inc only | BurlesonCaldwell (Austin Chalk) | Temporarily abandonedGas | 8,159 | Dec 20, 1990 | 1 | Dec 2024 |
| Schrader-Stonehenge Unit #1HZ42-051-33155 | Cox & Perkins Exploration Inc. only | BurlesonCaldwell (Austin Chalk) | PluggedOil | 13,500 | Nov 20, 1990 | 1 | Nov 2002 |
| McKinney Unit #2HZ42-051-33076 | Proline Energy Resources Inc only | BurlesonCaldwell (Austin Chalk) | ActiveOil | 11,400 | Jul 6, 1990 | 2 | Apr 2026 |
| Lopez Haines Unit #142-051-31728 | Landmark Exploration Inc. only | BurlesonCaldwell (Austin Chalk) | PluggedOil | 7,390 | Jul 2, 1990 | 4 | Apr 1997 |
| Mathis #142-041-31362 | Wildfire Energy Operating LLC only | BrazosCaldwell (Austin Chalk) | ActiveOil | 8,025 | Jun 28, 1990 | 3 | Mar 2026 |