| Yturria Cattle Co. #5042-489-31289 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara (5300) | Shut inOil | 5,650 | Mar 24, 2023 | — | — |
| Thomas Unit #142-489-31141 | Dewbre Petroleum Corporation only | Willacy, TXRiggan (8900) | ActiveInjection | 12,200 | Jul 14, 2021 | — | — |
| Thomas Unit #242-489-31176 | Dewbre Petroleum Corporation only | Willacy, TXRiggan (8900) | ActiveGas | 10,500 | Aug 18, 2020 | — | — |
| Yturria #942-489-31191 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara NE. (7550) | Shut inOil | 10,600 | Jun 4, 2020 | — | — |
| Cantu #142-489-31218 | Cal-Tex Exploratn & Prod Co LLC only | Willacy, TXLa Sara (No. 10 Sand) | Shut inOil | 10,200 | Jun 30, 2017 | — | — |
| Yturria #3342-489-31133 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara NE. (7550) | Shut inOil | 7,931 | Aug 2, 2016 | — | — |
| Yturria #28D42-489-31249 | Texas Oil and Gas Operating LLC only | Willacy, TXWildcat | Temporarily abandonedGas | 2,400 | Feb 11, 2016 | — | — |
| Yturria #29D42-489-31265 | Texas Oil and Gas Operating LLC only | Willacy, TXWildcat | Shut inOil | 4,000 | Feb 5, 2016 | — | — |
| Thomas Oil Unit #342-489-31277 | Dewbre Petroleum Corporation only | Willacy, TXRiggan (F-8) | ActiveOil | 9,075 | Aug 17, 2015 | — | — |
| Yturria #1042-489-31203 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara (3850) | ActiveOil | 10,110 | Jan 23, 2015 | — | — |
| Yturria #742-489-31259 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara (31-a Sand) | Shut inOil | 7,000 | Jan 15, 2015 | — | — |
| Yturria #4442-489-31278 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara (4300) | Shut inOil | 4,990 | Jul 23, 2014 | — | — |
| Yturria #4142-489-31276 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara (4300) | Shut inOil | 6,720 | Feb 20, 2014 | — | — |
| Lefner et al Gas Unit #642-489-31274 | Dewbre Petroleum Corporation only | Willacy, TXChile Vieja (Frio) | ActiveGas | 11,450 | Nov 20, 2013 | — | — |
| Yturria RR #26RR42-489-31243 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara (3850) | Shut inOil | 3,875 | Nov 9, 2013 | — | — |
| Coleman Unit #142-489-31194 | Dewbre Petroleum Corporation only | Willacy, TXRiggan (8600) | PluggedGas | 11,750 | Sep 26, 2013 | — | — |
| Petru V. A. #3ST42-489-31086 | Petrovybe Opco LLC only | Willacy, TXLa Sal Vieja (Frio L) | ActiveGas | 14,850 | Apr 29, 2013 | — | — |
| Yturria Fausto Jr. #142-489-31170 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sal Vieja (Deep) | Temporarily abandonedGas | 12,983 | Apr 25, 2013 | — | — |
| Yturria RR #22RR42-489-31271 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara (3830) | Shut inOil | 4,010 | Apr 17, 2013 | — | — |
| Yturria #2242-489-31268 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara (No. 40 Sand) | Shut inOil | 9,700 | Nov 15, 2012 | — | — |
| Yturria #31RR42-489-31267 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara E. (8200) | Shut inGas | 9,505 | Jul 27, 2012 | — | — |
| EP Garcia Ranch #142-489-31208 | XTO Energy Inc. only | Willacy, TXI. Y. Garcia (M-30) | PluggedGas | 19,500 | Jun 15, 2012 | — | — |
| Yturria #1C42-489-31264 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara N.E. (6070) | Shut inOil | 6,158 | Jan 31, 2012 | — | — |
| Yturria #2042-489-31263 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara (No. 40 Sand) | ActiveGas | 10,000 | Dec 29, 2011 | — | — |
| Hargill Gas Unit B #142-489-31262 | Dallas Petroleum Group LLC only | Willacy, TXWildcat | ActiveGas | 14,000 | Dec 10, 2011 | — | — |
| Yturria RR #a 2RR42-489-31207 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara (3460 Sand) | Shut inOil | 3,291 | Sep 13, 2011 | — | — |
| Hargill Gas Unit a #242-489-31258 | Dallas Petroleum Group LLC only | Willacy, TXHargill (Frio Cons.) | ActiveGas | 13,337 | Jul 6, 2011 | — | — |
| Luitjen #142-489-31257 | Wagner Oil Company only | Willacy, TXWildcat | PluggedGas | 11,950 | Jun 3, 2011 | — | — |
| Yturria #1442-489-31256 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara E. (8200) | Shut inOil | 8,745 | Feb 22, 2011 | — | — |
| Pinnell H. P. #142-489-31255 | Lighthouse Operating Inc. only | Willacy, TXArroyo Colorado North (E-4) | PluggedGas | 4,500 | Jan 10, 2011 | — | — |
| Yturria #31D42-489-31254 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara (No. 8 Sand) | Temporarily abandonedGas | 2,400 | Dec 14, 2010 | — | — |
| Kleberg R J Jr TR Stillman #50342-489-31248 | EOG Resources Inc. only | Willacy, TXTordilla (Deep Cons.) | PluggedGas | 16,000 | Nov 23, 2010 | — | — |
| Hargill Gas Unit a #142-489-31253 | Dallas Petroleum Group LLC only | Willacy, TXHargill (Frio Cons.) | ActiveGas | 13,400 | Oct 27, 2010 | — | — |
| Captain Fraser #1 Unit #142-489-31250 | Panther Bayou Energy LLC only | Willacy, TXWildcat | PluggedGas | 11,500 | Sep 2, 2010 | — | — |
| Morrow #142-489-31197 | Wagner Oil Company only | Willacy, TXWildcat | PluggedGas | 11,200 | May 24, 2010 | — | — |
| Kleberg R J Jr TR Stillman #50242-489-31247 | EOG Resources Inc. only | Willacy, TXTordilla (Deep Cons.) | PluggedGas | 16,000 | Apr 28, 2010 | — | — |
| Kleberg R J Jr TR Stillman #50142-489-31246 | EOG Resources Inc. only | Willacy, TXTordilla (Deep Cons.) | Not on scheduleGas | 16,000 | Apr 27, 2010 | — | — |
| Wrightsman et al GU #242-489-31244 | Dewbre Petroleum Corporation only | Willacy, TXChile Vieja (Frio) | ActiveGas | 11,600 | Mar 15, 2010 | — | — |
| Yturria #4242-489-31240 | Texas Oil and Gas Operating LLC only | Willacy, TXLa Sara NE. (7590) | Shut inOil | 10,125 | Jan 14, 2010 | — | — |
| Palousek et al GU #242-489-31239 | Suemaur Expl. & Prod. LLC only | Willacy, TXWildcat | PluggedGas | 11,700 | Dec 30, 2009 | — | — |
| Cox B. F. #1442-489-31237 | Wagner Oil Company only | Willacy, TXLa Sal Vieja (Frio Cons) | ActiveGas | 11,209 | Oct 16, 2009 | — | — |
| Cox B. F. #1542-489-31238 | Wagner Oil Company only | Willacy, TXLa Sal Vieja (Frio Cons) | ActiveGas | 11,200 | Oct 16, 2009 | — | — |
| SNP et al GU #142-489-31236 | Dewbre Petroleum Corporation only | Willacy, TXChile Vieja (Frio) | PluggedGas | 11,800 | Oct 14, 2009 | — | — |
| Cox B. F. #1242-489-31235 | Wagner Oil Company only | Willacy, TXLa Sal Vieja (Frio Cons) | ActiveGas | 11,356 | Sep 2, 2009 | — | — |
| Kendrick #1__42-489-31233 | Thorp Petroleum Corporationpermitted by · no operator of record | Willacy, TX | Plugged | 7,500 | Aug 12, 2009 | — | — |
| Wrightsman et al GU #142-489-31232 | Dewbre Petroleum Corporation only | Willacy, TXChile Vieja (Frio) | ActiveGas | 11,500 | Jul 8, 2009 | — | — |
| Cox B. F. #1142-489-31231 | Wagner Oil Company only | Willacy, TXLa Sal Vieja (Frio Cons) | ActiveGas | 11,591 | Jun 22, 2009 | — | — |
| Cox B. F. #1042-489-31230 | Wagner Oil Company only | Willacy, TXLa Sal Vieja (Frio Cons) | ActiveGas | 11,337 | Jun 17, 2009 | — | — |
| Cox B. F. #942-489-31228 | Wagner Oil Company only | Willacy, TXLa Sal Vieja (Frio Cons) | ActiveGas | 11,500 | Apr 24, 2009 | — | — |
| Yturria #242-489-31082 | Texas Oil and Gas Operating LLC only | Willacy, TXWildcat | ActiveGas | 8,398 | Apr 21, 2009 | — | — |