| Denman -a- #4STHZ42-187-33496 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,706 | Jan 24, 2013 | 2 | Aug 2026 |
| Knobloch a #7STHZ42-187-33553 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,508 | Aug 21, 2012 | 4 | Aug 2026 |
| Wilson Dallas 1H #1STHZ42-187-33523 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,623 | Aug 17, 2012 | 2 | Aug 2026 |
| Moore Maggie #1STHZ42-055-34549 | Texas Petroleum Investment Co. | CaldwellLuling-Branyon | ActiveOil | 2,078 | Aug 4, 2012 | 2 | Aug 2026 |
| Stair O. F. #2STHZ42-055-34648 | Texas Petroleum Investment Co. | CaldwellLuling-Branyon | ActiveOil | 2,132 | Aug 4, 2012 | 4 | Aug 2026 |
| K. Hardcastle #1HHZ42-187-33583 | Texas Petroleum Investment Co. | GuadalupeGuadalupe Bend (Austin Chalk) | PluggedOil | 3,000 | Mar 15, 2012 | 2 | — |
| Golden McKean 1H #1STHZ42-187-33516 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | ActiveOil | 2,122 | Feb 23, 2012 | 2 | Aug 2026 |
| Dix & McKean C #2STHZ42-187-33512 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,612 | Feb 2, 2012 | 2 | Aug 2026 |
| Middleton A. D. a/C #4 #11842-071-32445 | Texas Petroleum Investment Co. | ChambersDevillier (Lox B) | Temporarily abandonedGas | 11,385 | Dec 21, 2011 | 2 | May 2015 |
| Pledger Gas Field Unit #5142-039-30812 | Texas Petroleum Investment Co. | BrazoriaPledger (Frio 6500-6800) | Temporarily abandonedGas | 9,000 | Sep 16, 2011 | 7 | Jun 2014 |
| Allen J. E. -B- #3STHZ42-187-33415 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | ActiveOil | 2,919 | Aug 23, 2011 | 2 | Aug 2026 |
| Baker A. J. #3STHZ42-187-33388 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | ActiveOil | 2,035 | Aug 16, 2011 | 2 | Aug 2026 |
| Dix Thomas C #3STHZ42-187-33430 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | PluggedOil | 2,800 | Aug 16, 2011 | 3 | Aug 2026 |
| Dix-McKean B Unit #4STHZ42-187-33524 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,555 | Aug 16, 2011 | 2 | Aug 2026 |
| McKean A. J. & J. M. #4STHZ42-187-33405 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | ActiveOil | 2,096 | Aug 5, 2011 | 3 | Aug 2026 |
| McKean A. J. & J. M. #10HHZ42-187-33563 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | Shut inOil | 2,188 | Dec 9, 2010 | 1 | Aug 2026 |
| Denman -a- #2STHZ42-187-33453 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,613 | Dec 6, 2010 | 2 | Aug 2026 |
| Allen J. E. -B- #9HHZ42-187-33562 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | ActiveOil | 2,141 | Sep 13, 2010 | 1 | Aug 2026 |
| Baker A. J. #17HHZ42-187-33555 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | Shut inOil | 2,139 | Jan 21, 2010 | 1 | Aug 2026 |
| McKean A. J. & J. M. #9HHZ42-187-33550 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | Shut inOil | 2,143 | Jun 16, 2009 | 2 | Aug 2026 |
| Denman -a- #6HHZ42-187-33547 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,663 | May 15, 2009 | 1 | Aug 2026 |
| Willie H. 3-H #3HHZ42-187-33543 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,591 | Nov 7, 2008 | 1 | Oct 2011 |
| Tabor W. H. #9STHZ42-055-34829 | Texas Petroleum Investment Co. | CaldwellLuling-Branyon | ActiveOil | 2,184 | Oct 30, 2008 | 2 | Aug 2026 |
| Dix-McKean B Unit #6HHZ42-187-33538 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 4,385 | Apr 11, 2008 | 1 | Aug 2026 |
| Tiller W. J. #3HHZ42-055-34888 | Texas Petroleum Investment Co. | CaldwellLuling-Branyon | Shut inOil | 2,152 | Apr 8, 2008 | 1 | Aug 2026 |
| H. Willie 2-H #2HHZ42-187-33537 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,644 | Apr 8, 2008 | 1 | Aug 2026 |
| Duval County Ranch Co. -K- #4042-131-30771 | Texas Petroleum Investment Co. | DuvalCharamousca W. (Wilcox 4 Lo.) | Shut inOil | 5,382 | Jul 27, 2007 | 3 | Aug 1997 |
| Duval County Ranch Co. -K- #65 F42-131-37941 | Texas Petroleum Investment Co. | DuvalCharamousca W. (Wilcox 1 C) | Shut inGas | 5,700 | Jul 27, 2007 | 4 | Jun 1998 |
| Duval County Ranch Co.-K- #4742-131-32096 | Texas Petroleum Investment Co. | DuvalCharamousca W. (Wilcox 4) | Shut inOil | 5,500 | Jul 2, 2007 | 3 | Aug 2018 |
| Pledger Gas Field Unit #5042-039-32877 | Texas Petroleum Investment Co. | BrazoriaPledger (Frio 6500-6800) | Temporarily abandonedGas | 8,029 | May 25, 2007 | 2 | Nov 2014 |
| Duval County Ranch Co. -K- #4142-131-31035 | Texas Petroleum Investment Co. | DuvalCharamousca W. (Wilcox 2 Seg C) | ActiveInjection | 5,450 | Apr 23, 2007 | 4 | Apr 2026 |
| Duval County Ranch Co. -K- #6642-131-37967 | Texas Petroleum Investment Co. | DuvalCharamousca W. (Wilcox 2 Seg C) | ActiveOil | 5,700 | Apr 18, 2007 | 4 | Apr 2026 |
| Baker A. J. #16HHZ42-187-33535 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | Shut inOil | 3,849 | Apr 17, 2007 | 2 | Aug 2026 |
| Allen J. E. -a- #12HHZ42-187-33534 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | ActiveOil | 2,145 | Mar 28, 2007 | 2 | Aug 2026 |
| Duval County Ranch Co. -K- #4542-131-31512 | Texas Petroleum Investment Co. | DuvalCharamousca W.(wilcox 2) | Shut inOil | 5,500 | Jul 31, 2006 | 3 | May 2026 |
| Rios R. #2HHZ42-055-34830 | Texas Petroleum Investment Co. | CaldwellLuling-Branyon | Shut inOil | 2,135 | Jan 13, 2006 | 1 | Aug 2026 |
| Dix Thomas a #3HHZ42-187-33528 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,667 | Jan 9, 2006 | 1 | Aug 2026 |
| Denman C 3H #3HHZ42-187-33527 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,542 | Dec 22, 2005 | 1 | Jun 2020 |
| Dix-McKean B Unit #5HHZ42-187-33526 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,640 | Dec 12, 2005 | 1 | Aug 2026 |
| Denman C 2H #2HHZ42-187-33522 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,535 | Nov 10, 2005 | 1 | Sep 2017 |
| Allen J. E. -a- #4HHZ42-187-33390 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | ActiveOil | 3,766 | Nov 1, 2005 | 3 | Aug 2026 |
| Allen J. E. -a- #10HHZ42-187-33517 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | Shut inOil | 2,130 | Oct 18, 2005 | 1 | Aug 2026 |
| Tabor W. H. #8HHZ42-055-34824 | Texas Petroleum Investment Co. | CaldwellLuling-Branyon | ActiveOil | 2,208 | Sep 21, 2005 | 1 | Aug 2026 |
| McKean A. J. & J. M. #6STHZ42-187-33463 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | PluggedOil | 2,800 | Aug 23, 2005 | 3 | Aug 2026 |
| Allen J. E. -a- #9HSHZ42-187-33467 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | Shut inOil | 4,142 | Aug 23, 2005 | 3 | Aug 2026 |
| Pledger Gas Field Unit #4742-039-31395 | Texas Petroleum Investment Co. | BrazoriaPledger (Frio 6500-6800) | Temporarily abandonedGas | 7,150 | Aug 8, 2005 | 2 | Nov 2003 |
| Trammell H. S. #3HHZ42-055-34822 | Texas Petroleum Investment Co. | CaldwellLuling-Branyon | Shut inOil | 2,141 | Jul 5, 2005 | 1 | Aug 2026 |
| Allen J. E. -B- #8HHZ42-187-33515 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | Shut inOil | 2,152 | Jul 5, 2005 | 1 | Aug 2026 |
| Dix-McKean B Unit #3HHZ42-187-33514 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,995 | Jun 23, 2005 | 1 | Aug 2026 |
| Denman C 1H #1HHZ42-187-33510 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,550 | May 19, 2005 | 1 | Jul 2017 |