| Zimmer John #1242-469-34418 | Petra Oleum Corp. | Victoria, TXColetto Creek (2800) | ActiveOil | 2,903 | Dec 31, 2018 | — | — |
| Rutherford W. Z. #342-433-00227 | Petra Oleum Corp. | Stonewall, TXFlowers W. (Canyon Sand) | PluggedOil | 4,427 | Jan 9, 2015 | — | — |
| Terrell -B- #1242-469-34306 | Petra Oleum Corp. | Victoria, TXColetto Creek (2800) | ActiveOil | 2,880 | Jun 6, 2014 | — | — |
| Terrell -B- #1142-469-34305 | Petra Oleum Corp. | Victoria, TXColetto Creek (2800) | ActiveOil | 2,893 | May 28, 2014 | — | — |
| Terrell -B- #1042-469-31692 | Petra Oleum Corp. | Victoria, TXColetto Creek (2350) | ActiveGas | 2,941 | May 20, 2014 | — | — |
| Terrell Etta E #1642-469-33973 | Petra Oleum Corp. | Victoria, TXColetto Creek (4550) | Temporarily abandonedGas | 4,846 | Oct 11, 2013 | — | — |
| Mueller #142-469-34258 | Petra Oleum Corp. | Victoria, TXColetto Creek (2100) | ActiveGas | 2,939 | Aug 6, 2012 | — | — |
| Zimmer J. #242-469-01275 | Petra Oleum Corp. | Victoria, TXColetto Creek (2100) | PluggedGas | 2,400 | Mar 8, 2012 | — | — |
| Pribyl #1242-469-32009 | Petra Oleum Corp. | Victoria, TXColetto Creek (2300) | ActiveGas | 3,800 | Aug 6, 2010 | — | — |
| Pribyl #942-469-03087 | Petra Oleum Corp. | Victoria, TXColetto Creek (2760) | PluggedOil | 2,920 | Jul 9, 2010 | — | — |
| Zimmer #4 E42-469-01277 | Petra Oleum Corp. | Victoria, TXColetto Creek (2300) | PluggedGas | 3,049 | May 6, 2010 | — | — |
| Borchers William #5 L42-285-30226 | Petra Oleum Corp. | Lavaca, TXBorchers (1500) | PluggedGas | 4,377 | Nov 24, 2009 | — | — |
| Borchers William #142-285-00430 | Petra Oleum Corp. | Lavaca, TXBorchers (5700 Yegua) | Temporarily abandonedGas | 11,614 | Jun 18, 2009 | — | — |
| Borchers William #942-285-30244 | Petra Oleum Corp. | Lavaca, TXBorchers (3100) | PluggedGas | 4,455 | Oct 3, 2008 | — | — |
| Zimmer John #742-469-01279 | Petra Oleum Corp. | Victoria, TXColetto Creek (2350) | PluggedOil | 3,600 | Mar 26, 2008 | — | — |
| Gordon #242-285-33456 | Petra Oleum Corp. | Lavaca, TXMorales North (Yegua 6400) | PluggedOil | 6,400 | Feb 9, 2008 | — | — |
| Terrell D Unit #1142-469-33975 | Petra Oleum Corp. | Victoria, TXColetto Creek (2800) | Shut inOil | 4,850 | Oct 2, 2007 | — | — |
| Borchers William #242-285-00437 | Petra Oleum Corp. | Lavaca, TXMorales North (2300) | PluggedGas | 6,500 | Sep 14, 2006 | — | — |
| Zimmer John #142-469-01307 | Petra Oleum Corp. | Victoria, TXColetto Creek (2300) | PluggedOil | 2,360 | Aug 30, 2006 | — | — |
| Zimmer John #642-469-01278 | Petra Oleum Corp. | Victoria, TXColetto Creek (2800) | PluggedOil | 2,800 | Nov 1, 2005 | — | — |
| Terrell C #342-469-01249 | Petra Oleum Corp. | Victoria, TXColetto Creek (2800) | Shut inOil | 4,713 | Apr 5, 2005 | — | — |
| Zimmer John #242-469-01332 | Petra Oleum Corp. | Victoria, TXColetto Creek (2800) | PluggedOil | 2,657 | Sep 30, 2003 | — | — |
| Pribyl #1042-469-30344 | Petra Oleum Corp. | Victoria, TXColetto Creek (2350) | ActiveGas | 2,965 | Sep 3, 2003 | — | — |
| Terrell Etta C. #442-469-01250 | Petra Oleum Corp. | Victoria, TXColetto Creek (2300) | Temporarily abandonedGas | 4,686 | Mar 10, 2003 | — | — |
| Borchers Wm. #342-285-00431 | Petra Oleum Corp. | Lavaca, TXMorales North (Wilcox -H-) | PluggedGas | 4,000 | Feb 19, 2003 | — | — |
| Rice Institute #142-457-30290 | Petra Oleum Corp. | Tyler, TXHillister East (Wilcox 7300) | PluggedGas | 9,950 | Jan 24, 2002 | — | — |
| Urban -a- #242-469-30666 | Petra Oleum Corp. | Victoria, TXPridham Lake (4100) | PluggedGas | 5,350 | Jan 10, 2002 | — | — |
| Terrell a #842-469-01260 | Petra Oleum Corp. | Victoria, TXColeto Creek (4050) | PluggedGas | 4,924 | Dec 7, 2001 | — | — |
| Duson #142-481-33323 | Petra Oleum Corp. | Wharton, TXWharco Shilling (Frio 4200) | PluggedGas | 4,900 | May 23, 2001 | — | — |
| Zimmer John #542-469-01273 | Petra Oleum Corp. | Victoria, TXColetto Creek (2300) | PluggedOil | 2,819 | Feb 23, 2000 | — | — |
| Ramirez -B- #342-025-32191 | Petra Oleum Corp. | Bee, TXTynan East (2160) | PluggedGas | 4,400 | Feb 4, 2000 | — | — |
| Terrell a #242-469-01244 | Petra Oleum Corp. | Victoria, TXColetto Creek (1400 Miocene) | PluggedGas | 2,730 | Jan 26, 2000 | — | — |
| Zimmer #542-469-03169 | Petra Oleum Corp. | Victoria, TXColetto Creek (2800) | PluggedOil | 2,730 | Jan 26, 2000 | — | — |
| Zimmer #642-469-03176 | Petra Oleum Corp. | Victoria, TXColetto Creek (2760) | Shut inOil | 3,030 | Jan 26, 2000 | — | — |
| Duson #442-481-33535 | Petra Oleum Corp. | Wharton, TXNorris (Miocene) | PluggedGas | 5,200 | Oct 11, 1999 | — | — |
| Averill Terrell Etta #4 C42-469-33417 | Petra Oleum Corp. | Victoria, TXColetto Creek (2800) | PluggedOil | 2,950 | Jul 2, 1999 | — | — |
| Zimmer John #842-469-30578 | Petra Oleum Corp. | Victoria, TXColetto Creek (1450) | ActiveInjection | 4,513 | Nov 17, 1997 | — | — |
| Averill Terrell Etta #4B42-469-01263 | Petra Oleum Corp. | Victoria, TXColetto Creek (2600) | Shut inOil | 2,900 | Nov 7, 1997 | — | — |
| Borchers William #1442-285-30399 | Petra Oleum Corp. | Lavaca, TXBorchers (1370) | PluggedGas | 4,395 | Aug 25, 1997 | — | — |
| Averill Terrell Etta #2 B42-469-33242 | Petra Oleum Corp. | Victoria, TXColetto Creek (2800) | ActiveOil | 2,956 | Jul 18, 1997 | — | — |
| Paisano Ranch -13- #142-311-33405 | Petra Oleum Corp. | McMullen, TXA.W.P. (Olmos) | PluggedOil | 12,000 | Apr 21, 1997 | — | — |
| Paisano Ranch #160142-311-33384 | Petra Oleum Corp. | McMullen, TXA.W.P. (Olmos) | PluggedOil | 12,500 | Mar 26, 1997 | — | — |
| Paisano Ranch -1- #142-311-33373 | Petra Oleum Corp. | McMullen, TXA.W.P. (Wilcox) | PluggedGas | 11,000 | Mar 17, 1997 | — | — |
| Paisano Ranch #60142-311-33359 | Petra Oleum Corp. | McMullen, TXA.W.P. (Olmos) | PluggedOil | 11,000 | Feb 19, 1997 | — | — |
| Paisano Ranch #70142-311-33342 | Petra Oleum Corp. | McMullen, TXA.W.P. (Olmos) | PluggedOil | 11,500 | Feb 4, 1997 | — | — |
| Terrell Averill Etta #5B42-469-01262 | Petra Oleum Corp. | Victoria, TXColetto Creek (2250 Stray) | PluggedGas | 2,800 | Oct 18, 1994 | — | — |
| Ewers Pinkie #342-285-31249 | Petra Oleum Corp. | Lavaca, TXHope (Miocene 1550) | PluggedGas | 3,800 | Aug 31, 1994 | — | — |
| Terrell B #5RR42-469-32907 | Petra Oleum Corp. | Victoria, TXColetto Creek (2100) | PluggedGas | 3,000 | Sep 14, 1993 | — | — |
| Books 21 #142-173-32343 | Petra Oleum Corp. | Glasscock, TXPatterson Lake (Wolfcamp) | PluggedGas | 9,000 | Jul 13, 1993 | — | — |
| Terrell B #5R42-469-30422 | Petra Oleum Corp. | Victoria, TXColetto Creek (1400 Miocene) | PluggedGas | 2,912 | Apr 28, 1993 | — | — |