| Dix & McKean C #4342-187-30514 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,510 | Oct 2, 2000 | 1 | Aug 2026 |
| Knobloch B - #3442-187-30242 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | PluggedOil | 2,650 | Sep 13, 2000 | 1 | Aug 2026 |
| Knobloch B - #3542-187-30243 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,500 | Sep 13, 2000 | 1 | Aug 2026 |
| Knobloch B - #3142-187-30245 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | PluggedOil | 2,650 | Sep 13, 2000 | 1 | Aug 2026 |
| Knobloch B - #3842-187-30317 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,476 | Sep 13, 2000 | 1 | Aug 2026 |
| Knobloch B - #3942-187-30356 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,522 | Sep 13, 2000 | 1 | Aug 2026 |
| Knobloch B - #4042-187-30367 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,492 | Sep 13, 2000 | 1 | Aug 2026 |
| Knobloch C. -B- #41B42-187-30368 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Buda) | Shut inOil | 2,479 | Sep 13, 2000 | 1 | Aug 2026 |
| Knobloch B - #4642-187-30835 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | PluggedOil | 3,460 | Sep 13, 2000 | 3 | Aug 2026 |
| Knobloch B - #4742-187-30836 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,575 | Sep 13, 2000 | 2 | Aug 2026 |
| Trammell H. S. #1HHZ42-055-34795 | Texas Petroleum Investment Co. | CaldwellLuling-Branyon | ActiveOil | 4,290 | Aug 5, 2000 | 1 | Aug 2026 |
| Tabor W. H. #5HHZ42-055-34794 | Texas Petroleum Investment Co. | CaldwellLuling-Branyon | Shut inOil | 5,119 | Aug 3, 2000 | 1 | Aug 2026 |
| Anderson C. (Chevron) #1442-187-30509 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | PluggedOil | 2,650 | Jul 6, 2000 | 1 | May 2024 |
| Knobloch B - #3242-187-30244 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,572 | Jun 9, 2000 | 1 | Aug 2026 |
| Knobloch B - #3642-187-30316 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,535 | Jun 9, 2000 | 1 | Aug 2026 |
| Knobloch B - #3742-187-30318 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,437 | Jun 9, 2000 | 1 | Aug 2026 |
| Knobloch B - #4442-187-30831 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,425 | Jun 9, 2000 | 2 | Aug 2026 |
| Knobloch C. -B- #4942-187-30841 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Buda) | Shut inOil | 2,470 | Jun 9, 2000 | 2 | Aug 2026 |
| Knobloch B - #5042-187-30847 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,542 | Jun 9, 2000 | 2 | Aug 2026 |
| Knobloch Oil (Empire) #842-187-00928 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | PluggedOil | 2,716 | May 19, 2000 | 1 | Jan 2010 |
| Knobloch B - #4342-187-30832 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,450 | Apr 13, 2000 | 2 | Aug 2026 |
| Knobloch C. #3442-187-00962 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Buda) | ActiveOil | 2,580 | Feb 24, 2000 | 1 | Aug 2026 |
| Tyrrell W. C. Trust #1642-071-01429 | Texas Petroleum Investment Co. | ChambersAnahuac W. (Marginulina a ) | PluggedGas | 6,938 | Nov 2, 1999 | 1 | Jun 2026 |
| Tyrrell W. C. Tr. #4442-071-31588 | Texas Petroleum Investment Co. | ChambersAnahuac W. (Marginulina) | PluggedGas | 7,550 | Nov 2, 1999 | 2 | Jun 2026 |
| Duval County Ranch Co -K- #6842-131-38353 | Texas Petroleum Investment Co. | DuvalCharamousca West (Jackson) | Temporarily abandonedGas | 930 | Oct 18, 1999 | 2 | Oct 2000 |
| Zappe Marie #1342-071-01520 | Texas Petroleum Investment Co. | ChambersAnahuac | PluggedGas | 6,624 | Sep 29, 1999 | 1 | Apr 2003 |
| Duval County Ranch Co. -K- #15D42-131-20098 | Texas Petroleum Investment Co. | DuvalCharamousca West (Jackson) | Temporarily abandonedGas | 5,600 | Jul 13, 1999 | 1 | Apr 2026 |
| Duval County Ranch Co. -K- #5142-131-37026 | Texas Petroleum Investment Co. | DuvalCharamousca West (Jackson) | Temporarily abandonedGas | 3,750 | Jul 13, 1999 | 3 | Aug 2026 |
| Duval County Ranch Co. -K- #5442-131-37111 | Texas Petroleum Investment Co. | DuvalCharamousca West (Jackson) | ActiveGas | 3,550 | Apr 1, 1999 | 4 | Aug 2026 |
| Knobloch a #3842-187-30845 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,518 | Aug 19, 1998 | 2 | Aug 2026 |
| Stair O. F. #3HHZ42-055-34789 | Texas Petroleum Investment Co. | CaldwellLuling-Branyon | PluggedOil | 2,200 | Aug 6, 1998 | 2 | Aug 2026 |
| Knobloch C. -B- #4242-187-30369 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Buda) | ActiveOil | 2,398 | Jul 10, 1998 | 2 | Aug 2026 |
| Knobloch B - #4542-187-30834 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | PluggedOil | 3,445 | Jul 10, 1998 | 2 | Aug 2026 |
| Anderson L. #1942-187-30325 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,454 | Jun 30, 1998 | 1 | Aug 2026 |
| Wille H. #2542-187-30328 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Buda) | PluggedOil | 2,600 | Jun 30, 1998 | 1 | Jun 2019 |
| Anderson L. #2142-187-30360 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,529 | Jun 30, 1998 | 1 | Aug 2026 |
| Anderson L. #2242-187-30361 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,568 | Jun 19, 1998 | 2 | Aug 2026 |
| Knobloch a #4242-187-30876 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,455 | Jun 19, 1998 | 3 | Aug 2026 |
| Moore Maggie #6HHZ42-055-34781 | Texas Petroleum Investment Co. | CaldwellLuling-Branyon | Shut inOil | 3,990 | Jun 16, 1998 | 1 | Aug 2026 |
| Knobloch B - #3342-187-30246 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,518 | Jun 11, 1998 | 1 | Aug 2026 |
| Knobloch C. #5242-187-30366 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | Shut inOil | 2,559 | Jun 5, 1998 | 1 | Aug 2026 |
| Knobloch C. #5342-187-30365 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | PluggedOil | 2,540 | May 27, 1998 | 1 | Aug 2026 |
| Mercer Mills #1HHZ42-055-34784 | Texas Petroleum Investment Co. | CaldwellLuling-Branyon | ActiveOil | 4,586 | May 19, 1998 | 1 | Aug 2026 |
| Moore Maggie #3242-055-34301 | Texas Petroleum Investment Co. | CaldwellLuling-Branyon | ActiveInjection | 2,650 | May 13, 1998 | 2 | Aug 2026 |
| Knobloch a #4142-187-30877 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | PluggedOil | 3,450 | May 7, 1998 | 2 | Aug 2026 |
| Knobloch a #3642-187-30371 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,505 | Apr 29, 1998 | 1 | Aug 2026 |
| Knobloch a #3942-187-30846 | Texas Petroleum Investment Co. | GuadalupeDarst Creek (Edwards) | ActiveOil | 2,450 | Apr 22, 1998 | 2 | Aug 2026 |
| Moore Maggie #3342-055-34778 | Texas Petroleum Investment Co. | CaldwellLuling-Branyon | ActiveOil | 2,474 | Apr 13, 1998 | 1 | Aug 2026 |
| Marines L. #2HHZ42-187-33473 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | ActiveOil | 2,086 | Mar 3, 1998 | 1 | Aug 2026 |
| McKean A. J. & J. M. #7 HHZ42-187-33469 | Texas Petroleum Investment Co. | GuadalupeLuling-Branyon | Shut inOil | 2,098 | Feb 10, 1998 | 1 | Aug 2026 |