| 705937Amendment | Nov 30, 2010 | Nov 30, 2010 | Abraxas Petroleum Corporation | Atascosa | Grass Farm Unit #1HH | 7,900 | 01334329 |
| 705937Amendment | Nov 30, 2010 | Nov 30, 2010 | Abraxas Petroleum Corporation | Atascosa | Grass Farm Unit #1HH | 7,900 | 01334329 |
| 705393 | Nov 18, 2010 | Nov 18, 2010 | Abraxas Petroleum Corporation | San Patricio | Minnie S. Welder #88 | 7,600 | 40932935 |
| 703663 | Oct 20, 2010 | Oct 20, 2010 | Abraxas Petroleum Corporation | De Witt | T Bird #1HH | 14,200 | 12332366 |
| 701699 | Sep 7, 2010 | Sep 7, 2010 | Abraxas Petroleum Corporation | Nolan | Spires Ranch #1261HH | 7,500 | 35333160 |
| 701699Amendment | Sep 7, 2010 | Sep 7, 2010 | Abraxas Petroleum Corporation | Nolan | Spires Ranch #1261HH | 7,700 | 35333160 |
| 700666 | Aug 26, 2010 | Aug 26, 2010 | Abraxas Petroleum Corporation | De Witt | Dlugosch #1HH | 10,400 | 12332354 |
| 695695 | May 12, 2010 | May 12, 2010 | Abraxas Petroleum Corporation | Nolan | Spires Ranch #1491 | 7,800 | 35333140 |
| 695695Amendment | May 12, 2010 | May 12, 2010 | Abraxas Petroleum Corporation | Nolan | Spires Ranch #1491HH | 7,800 | 35333140 |
| 683248 | Jul 29, 2009 | Jul 29, 2009 | Abraxas Petroleum Corporation | Bee | Bradford #1 | 10,300 | 02533670 |
| 683154 | Jul 17, 2009 | Jul 17, 2009 | Abraxas Petroleum Corporation | Nolan | Spires Ranch 202 #1 | 7,500 | 35333104 |
| 681976 | Jun 17, 2009 | Jun 17, 2009 | Abraxas Petroleum Corporation | Coke | Millican Reef Unit #6P | 6,070 | 08131766 |
| 681978 | Jun 10, 2009 | Jun 10, 2009 | Abraxas Petroleum Corporation | Midland | Coleman, Beulah #13 | 11,419 | 32935856 |
| 681978Amendment | Jun 10, 2009 | Jun 10, 2009 | Abraxas Petroleum Corporation | Midland | Coleman, Beulah #13 | 11,419 | 32935856 |
| 677352 | Jan 16, 2009 | Jan 16, 2009 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S #19 | 9,200 | 40901656 |
| 675271 | Nov 25, 2008 | Nov 25, 2008 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S #87 | 9,300 | 40932902 |
| 675257 | Nov 25, 2008 | Nov 25, 2008 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S #86 | 9,200 | 40932901 |
| 673262 | Oct 24, 2008 | Oct 24, 2008 | Abraxas Petroleum Corporation | Coke | Millican Reef Unit #1A | 6,900 | 08131937 |
| 673306 | Oct 22, 2008 | Oct 22, 2008 | Abraxas Petroleum Corporation | Coke | Millican Reef Unit #3A | 6,900 | 08131936 |
| 673296 | Oct 21, 2008 | Oct 21, 2008 | Abraxas Petroleum Corporation | Coke | Millican Reef Unit #2A | 6,900 | 08131935 |
| 672330 | Oct 16, 2008 | Oct 16, 2008 | Abraxas Petroleum Corporation | Karnes | Jones Gas Unit #1 | 12,300 | 25531602 |
| 667214 | Aug 7, 2008 | Aug 7, 2008 | Abraxas Petroleum Corporation | Bee | Sutherland #1 | 10,500 | 02533510 |
| 667214Amendment | Aug 7, 2008 | Aug 7, 2008 | Abraxas Petroleum Corporation | Bee | Sutherland #1 | 10,500 | 02533510 |
| 666959 | Aug 6, 2008 | Aug 6, 2008 | Abraxas Petroleum Corporation | Bee | Muckelroy #1 | 8,950 | 02501022 |
| 666959Amendment | Aug 6, 2008 | Aug 6, 2008 | Abraxas Petroleum Corporation | Bee | Muckelroy #1 | 9,620 | 02501022 |
| 659187 | Aug 6, 2008 | Aug 6, 2008 | Abraxas Petroleum Corporation | De Witt | Nordheim Gas Unit #1HH | 14,000 | 12332212 |
| 666449 | Aug 4, 2008 | Aug 4, 2008 | Abraxas Petroleum Corporation | Scurry | Huddleston F #7 | 3,500 | 41534450 |
| 666450 | Aug 2, 2008 | Aug 2, 2008 | Abraxas Petroleum Corporation | Scurry | Huddleston F #6 | 3,500 | 41534449 |
| 666348 | Jul 30, 2008 | Jul 30, 2008 | Abraxas Petroleum Corporation | Scurry | Huddleston "F" #8 | 3,500 | 41534448 |
| 666343 | Jul 29, 2008 | Jul 29, 2008 | Abraxas Petroleum Corporation | Scurry | Huddleston "E" #9 | 3,500 | 41534447 |
| 666340 | Jul 29, 2008 | Jul 29, 2008 | Abraxas Petroleum Corporation | Scurry | Huddleston "E" #8 | 3,500 | 41534446 |
| 665869 | Jul 22, 2008 | Jul 22, 2008 | Abraxas Petroleum Corporation | Bee | Beck #2 | 10,500 | 02533602 |
| 665867 | Jul 22, 2008 | Jul 22, 2008 | Abraxas Petroleum Corporation | Bee | Beck #1 | 10,500 | 02533601 |
| 661912 | Jun 4, 2008 | Jun 4, 2008 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S #16 | 9,110 | 40901653 |
| 659056 | Apr 28, 2008 | Apr 28, 2008 | Abraxas Petroleum Corporation | De Witt | Nordheim Gas Unit #2HH | 14,000 | 12332207 |
| 659056Amendment | Apr 28, 2008 | Apr 28, 2008 | Abraxas Petroleum Corporation | De Witt | Nordheim Gas Unit #2HH | 14,000 | 12332207 |
| 654057 | Mar 4, 2008 | Mar 4, 2008 | Abraxas Petroleum Corporation | Midland | Coleman, Beulah #13 | 11,700 | 32935856 |
| 651767 | Jan 4, 2008 | Jan 4, 2008 | Abraxas Petroleum Corporation | Lavaca | Henson Gas Unit #3HH | 14,200 | 28533451 |
| 651173 | Dec 19, 2007 | Dec 19, 2007 | Abraxas Petroleum Corporation | Lavaca | Henson Gas Unit #4HH | 14,200 | 28533448 |
| 649391 | Nov 26, 2007 | Nov 26, 2007 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #13 | 9,000 | 40901650 |
| 648323 | Oct 29, 2007 | Oct 29, 2007 | Abraxas Petroleum Corporation | Karnes | Gisler Gas Unit #1 | 12,700 | 25531566 |
| 648323Amendment | Oct 29, 2007 | Oct 29, 2007 | Abraxas Petroleum Corporation | Karnes | Gisler Gas Unit #1 | 12,700 | 25531566 |
| 646130 | Sep 19, 2007 | Sep 19, 2007 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #69 | 7,150 | 40932057 |
| 642776 | Jul 31, 2007 | Jul 31, 2007 | Abraxas Petroleum Corporation | Ward | Howe Gas Unit No. 6 #1 | 12,920 | 47530669 |
| 642726 | Jul 31, 2007 | Jul 31, 2007 | Abraxas Petroleum Corporation | Ward | Caprito 99 #1 | 13,000 | 47530091 |
| 642100 | Jul 17, 2007 | Jul 17, 2007 | Abraxas Petroleum Corporation | Bee | Sutherland #1 | 10,500 | 02533510 |
| 640151 | Jun 13, 2007 | Jun 13, 2007 | Abraxas Petroleum Corporation | Pecos | Townsend SWD #1 | 5,500 | 37130271 |
| 639632 | Jun 7, 2007 | Jun 7, 2007 | Abraxas Petroleum Corporation | San Patricio | Minnie S. Welder #85 | 8,600 | 40932867 |
| 632356 | Feb 2, 2007 | Feb 2, 2007 | Abraxas Petroleum Corporation | Ward | Caprito 83 #14 | 7,200 | 47535195 |
| 632355 | Jan 25, 2007 | Jan 25, 2007 | Abraxas Petroleum Corporation | Ward | Caprito 83 #13 | 7,200 | 47535194 |
| 631509 | Jan 9, 2007 | Jan 9, 2007 | Abraxas Petroleum Corporation | Ward | Caprito 82 #12 | 7,200 | 47535189 |
| 627099 | Oct 6, 2006 | Oct 6, 2006 | Abraxas Petroleum Corporation | Pecos | Manzanita State #1 | 17,042 | 37133181 |
| 627099Amendment | Oct 6, 2006 | Oct 6, 2006 | Abraxas Petroleum Corporation | Pecos | Manzanita #1HH | 17,042 | 37133181 |
| 627099Amendment | Oct 6, 2006 | Oct 6, 2006 | Abraxas Petroleum Corporation | Pecos | Manzanita #1HH | 17,042 | 37133181 |
| 617407 | Apr 12, 2006 | Apr 12, 2006 | Abraxas Petroleum Corporation | Pecos | La Escalera #501 | 12,500 | 37137709 |
| 616194 | Mar 28, 2006 | Mar 28, 2006 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #27 | 8,200 | 40901663 |
| 616190 | Mar 27, 2006 | Mar 27, 2006 | Abraxas Petroleum Corporation | Pecos | La Escalera #2 | 14,000 | 37131197 |
| 616190Amendment | Mar 27, 2006 | Mar 27, 2006 | Abraxas Petroleum Corporation | Pecos | La Escalera #2 | 14,000 | 37131197 |
| 614282 | Feb 15, 2006 | Feb 15, 2006 | Abraxas Petroleum Corporation | Goliad | Dimon Gas Unit #1 | 9,050 | 17533311 |
| 613022 | Jan 25, 2006 | Jan 25, 2006 | Abraxas Petroleum Corporation | Ward | Hall, G.T. 32 #1 | 13,000 | 47530393 |
| 612382 | Jan 13, 2006 | Jan 13, 2006 | Abraxas Petroleum Corporation | Pecos | Hudgins 37 #1 | 14,100 | 37134498 |
| 612382Amendment | Jan 13, 2006 | Jan 13, 2006 | Abraxas Petroleum Corporation | Pecos | Hudgins 37 #1H | 14,100 | 37134498 |
| 611781 | Jan 5, 2006 | Jan 5, 2006 | Abraxas Petroleum Corporation | De Witt | Simek-Cook Unit #1 | 8,900 | 12332076 |
| 611193 | Dec 16, 2005 | Dec 16, 2005 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #27 | 8,970 | 40901663 |
| 606693 | Sep 21, 2005 | Sep 21, 2005 | Abraxas Petroleum Corporation | Ward | Caprito 82 #1 | 10,500 | 47511126 |
| 606693Amendment | Sep 21, 2005 | Sep 21, 2005 | Abraxas Petroleum Corporation | Ward | Caprito 82 #1 | 11,820 | 47511126 |
| 606177 | Sep 12, 2005 | Sep 12, 2005 | Abraxas Petroleum Corporation | Pecos | Hudgins 11 #1 | 14,362 | 37132950 |
| 556909Amendment | Jun 17, 2005 | Jun 17, 2005 | Abraxas Petroleum Corporation | Howard | Williams Oil Unit #1 | 10,868 | 22731706 |
| 600451 | May 10, 2005 | May 10, 2005 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #72 | 8,100 | 40932166 |
| 600450 | May 10, 2005 | May 10, 2005 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #71 | 7,050 | 40932119 |
| 557943 | Feb 22, 2005 | Feb 22, 2005 | Abraxas Petroleum Corporation | Pecos | La Escalera #1AHH | 14,400 | 37137537 |
| 557162 | Feb 11, 2005 | Feb 11, 2005 | Abraxas Petroleum Corporation | De Witt | Wagner Gas Unit #2 HH | 14,200 | 12332014 |
| 556909 | Jan 31, 2005 | Jan 31, 2005 | Abraxas Petroleum Corporation | Howard | Williams #1 | 10,868 | 22731706 |
| 554840 | Dec 16, 2004 | Dec 16, 2004 | Abraxas Petroleum Corporation | Pecos | La Escalera #2 | 14,000 | 37131197 |
| 554621 | Dec 9, 2004 | Dec 9, 2004 | Abraxas Petroleum Corporation | Dawson | Kent CSL 7 #2 | 9,100 | 11533132 |
| 553706 | Dec 9, 2004 | Dec 9, 2004 | Abraxas Petroleum Corporation | Ward | Caprito 83 #12 | 6,900 | 47534833 |
| 553706Amendment | Dec 9, 2004 | Dec 9, 2004 | Abraxas Petroleum Corporation | Ward | Caprito 83 #12 | 6,900 | 47534833 |
| 553930 | Nov 22, 2004 | Nov 22, 2004 | Abraxas Petroleum Corporation | Pecos | La Escalera #1HH | 14,400 | 37137478 |
| 553704 | Nov 18, 2004 | Nov 18, 2004 | Abraxas Petroleum Corporation | Scurry | Huddleston A #7 | 3,400 | 41534121 |
| 553705 | Nov 17, 2004 | Nov 17, 2004 | Abraxas Petroleum Corporation | Scurry | Huddleston A #6 | 3,400 | 41534122 |
| 553654 | Nov 16, 2004 | Nov 16, 2004 | Abraxas Petroleum Corporation | Martin | Bauer 27 #1 | 9,070 | 31731558 |
| 552523 | Oct 27, 2004 | Oct 27, 2004 | Abraxas Petroleum Corporation | De Witt | Steinmann Gas Unit #2 HH | 14,340 | 12331839 |
| 551230Amendment | Oct 4, 2004 | Oct 4, 2004 | Abraxas Petroleum Corporation | Pecos | La Escalera -A- #701 | 5,000 | 37137456 |
| 549770 | Aug 20, 2004 | Aug 20, 2004 | Abraxas Petroleum Corporation | Pecos | Townsend SWD #1 | 5,500 | 37130271 |
| 544376 | Apr 16, 2004 | Apr 16, 2004 | Abraxas Petroleum Corporation | Dawson | Kent CSL 7 #1 | 9,000 | 11533110 |
| 542489 | Feb 26, 2004 | Feb 26, 2004 | Abraxas Petroleum Corporation | Martin | Green, Rufus J. #1 | 9,000 | 31732034 |
| 538785 | Nov 21, 2003 | Nov 21, 2003 | Abraxas Petroleum Corporation | Dawson | Kent County #1 | 9,000 | 11533102 |
| 535821 | Aug 27, 2003 | Aug 27, 2003 | Abraxas Petroleum Corporation | Dawson | Ozier #1 | 9,000 | 11533101 |
| 535821Amendment | Aug 27, 2003 | Aug 27, 2003 | Abraxas Petroleum Corporation | Dawson | Ozier #1 | 9,000 | 11533101 |
| 533821 | Jul 28, 2003 | Jul 28, 2003 | Abraxas Petroleum Corporation | De Witt | Garrett Gas Unit #2 HH | 14,220 | 12331164 |
| 532644 | Jun 2, 2003 | Jun 2, 2003 | Abraxas Petroleum Corporation | Pecos | P. T. Hudgins 34 #2HH | 13,500 | 37133853 |
| 529823 | Apr 24, 2003 | Apr 24, 2003 | Abraxas Petroleum Corporation | Goliad | Pettus Heirs #5 | 10,000 | 17533501 |
| 529823Amendment | Mar 27, 2003 | Mar 27, 2003 | Abraxas Petroleum Corporation | Goliad | Pettus Heirs #5 | 10,000 | 17533501 |
| 527188 | Feb 4, 2003 | Feb 4, 2003 | Abraxas Petroleum Corporation | Ward | Caprito 82 #11 | 17,500 | 47534771 |
| 525743 | Nov 22, 2002 | Nov 22, 2002 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #72 | 7,100 | 40932166 |
| 524664 | Oct 23, 2002 | Oct 23, 2002 | Abraxas Petroleum Corporation | Goliad | Dimon SWD #1A | 3,500 | 17533468 |
| 517584 | Feb 14, 2002 | Feb 14, 2002 | Abraxas Petroleum Corporation | Ward | Caprito 83 #5 | 2,800 | 47534395 |
| 517100 | Jan 29, 2002 | Jan 29, 2002 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #55 | 9,300 | 40901687 |
| 516870 | Jan 23, 2002 | Jan 23, 2002 | Abraxas Petroleum Corporation | Pecos | Hudgins, P. T. 36 #1SW | 5,100 | 37132504 |
| 516836 | Jan 15, 2002 | Jan 15, 2002 | Abraxas Petroleum Corporation | Goliad | Tipton #2 | 9,200 | 17533253 |