| 715825 | May 17, 2011 | May 17, 2011 | Discovery Operating, Inc. | Midland | JW 9 #10 | 10,500 | 32937306 |
| 713695 | Apr 18, 2011 | Apr 18, 2011 | Discovery Operating, Inc. | Andrews | Carbright 23 #2 | 9,215 | 00341207 |
| 711714 | Mar 21, 2011 | Mar 21, 2011 | Discovery Operating, Inc. | Martin | Dakota #1 | 10,600 | 31736739 |
| 708056 | Jan 14, 2011 | Jan 14, 2011 | Discovery Operating, Inc. | Martin | Jamie #2 | 10,600 | 31736565 |
| 708090 | Jan 13, 2011 | Jan 13, 2011 | Discovery Operating, Inc. | Martin | Mildred #2 | 10,600 | 31736566 |
| 702959 | Nov 1, 2010 | Nov 1, 2010 | Discovery Operating, Inc. | Upton | Holzgraf 34 #9 | 10,600 | 46137019 |
| 702904 | Nov 1, 2010 | Nov 1, 2010 | Discovery Operating, Inc. | Upton | CT 39 #8 | 10,600 | 46137018 |
| 704358 | Oct 29, 2010 | Oct 29, 2010 | Discovery Operating, Inc. | Andrews | Andrews 1115 #4 | 7,999 | 00342186 |
| 704227 | Oct 29, 2010 | Oct 29, 2010 | Discovery Operating, Inc. | Andrews | University 11A #8 | 7,999 | 00342185 |
| 698211 | Jul 30, 2010 | Jul 30, 2010 | Discovery Operating, Inc. | Midland | JW 16 #7 | 10,500 | 32936695 |
| 697615 | Jul 22, 2010 | Jul 22, 2010 | Discovery Operating, Inc. | Midland | JW 7 #9 | 10,500 | 32936680 |
| 697588 | Jul 14, 2010 | Jul 14, 2010 | Discovery Operating, Inc. | Midland | JW 8 #5 | 10,500 | 32936678 |
| 696855 | Jun 7, 2010 | Jun 7, 2010 | Discovery Operating, Inc. | Andrews | Carbright 23 #1 | 10,000 | 00341741 |
| 695358 | May 7, 2010 | May 7, 2010 | Discovery Operating, Inc. | Andrews | University 11 #8 | 7,999 | 00341665 |
| 695330 | May 6, 2010 | May 6, 2010 | Discovery Operating, Inc. | Andrews | University 11A #7 | 7,999 | 00341658 |
| 695249 | May 5, 2010 | May 5, 2010 | Discovery Operating, Inc. | Martin | Mildred #1 | 10,600 | 31735998 |
| 693939 | Apr 9, 2010 | Apr 9, 2010 | Discovery Operating, Inc. | Martin | Jamie #1 | 10,600 | 31735956 |
| 692983 | Mar 25, 2010 | Mar 25, 2010 | Discovery Operating, Inc. | Midland | Windham 42 #6 | 10,600 | 32936576 |
| 691600 | Mar 23, 2010 | Mar 23, 2010 | Discovery Operating, Inc. | Midland | Windham 42 #5 | 10,600 | 32936544 |
| 691340 | Feb 24, 2010 | Feb 24, 2010 | Discovery Operating, Inc. | Midland | Holzgraf 22 #9 | 10,600 | 32936540 |
| 691267 | Feb 16, 2010 | Feb 16, 2010 | Discovery Operating, Inc. | Midland | Txlv 43 #5 | 10,600 | 32936513 |
| 690981 | Feb 12, 2010 | Feb 12, 2010 | Discovery Operating, Inc. | Midland | Geronimo 15 #7 | 10,600 | 32936507 |
| 689197 | Jan 13, 2010 | Jan 13, 2010 | Discovery Operating, Inc. | Midland | JW 9 #8 | 11,800 | 32936465 |
| 689066 | Dec 29, 2009 | Dec 29, 2009 | Discovery Operating, Inc. | Midland | JW 9 #6 | 11,800 | 32936460 |
| 686705 | Nov 2, 2009 | Nov 2, 2009 | Discovery Operating, Inc. | Upton | Geronimo 27 #8 | 10,300 | 46136446 |
| 685824 | Oct 8, 2009 | Oct 8, 2009 | Discovery Operating, Inc. | Andrews | Carbright 23 #2 | 10,000 | 00341207 |
| 685636 | Oct 1, 2009 | Oct 1, 2009 | Discovery Operating, Inc. | Midland | Txlv 39 #8 | 10,400 | 32936372 |
| 685617 | Sep 29, 2009 | Sep 29, 2009 | Discovery Operating, Inc. | Midland | Txlv 39 #7 | 10,400 | 32936371 |
| 685250 | Sep 23, 2009 | Sep 23, 2009 | Discovery Operating, Inc. | Andrews | University 11B #3 | 8,000 | 00341183 |
| 682090 | Jun 24, 2009 | Jun 24, 2009 | Discovery Operating, Inc. | Midland | JW 9 #5 | 11,800 | 32936320 |
| 682080 | Jun 24, 2009 | Jun 24, 2009 | Discovery Operating, Inc. | Midland | JW 9 #7 | 11,800 | 32936321 |
| 680900 | May 11, 2009 | May 11, 2009 | Discovery Operating, Inc. | Midland | JW 7 #8 | 10,500 | 32936300 |
| 680885 | May 7, 2009 | May 7, 2009 | Discovery Operating, Inc. | Midland | JW 7 #7 | 10,500 | 32936294 |
| 667392 | Oct 2, 2008 | Oct 2, 2008 | Discovery Operating, Inc. | Midland | Windham 40 #9 | 10,600 | 32936090 |
| 667713 | Sep 19, 2008 | Sep 19, 2008 | Discovery Operating, Inc. | Upton | Firefly A #5 | 10,600 | 46136091 |
| 669109 | Sep 17, 2008 | Sep 17, 2008 | Discovery Operating, Inc. | Midland | JW 9 #4 | 11,800 | 32936089 |
| 666273 | Sep 5, 2008 | Sep 5, 2008 | Discovery Operating, Inc. | Upton | Firefly A #4 | 10,600 | 46136063 |
| 666189 | Jul 28, 2008 | Jul 28, 2008 | Discovery Operating, Inc. | Midland | Txlv 39 #6 | 10,400 | 32936020 |
| 666181 | Jul 28, 2008 | Jul 28, 2008 | Discovery Operating, Inc. | Midland | Txlv 39 #5 | 10,400 | 32936019 |
| 660407 | Jun 27, 2008 | Jun 27, 2008 | Discovery Operating, Inc. | Midland | JW 7 #6 | 10,500 | 32935992 |
| 659106 | Apr 25, 2008 | Apr 25, 2008 | Discovery Operating, Inc. | Martin | Vogler #2 | 10,700 | 31735239 |
| 659125 | Apr 23, 2008 | Apr 23, 2008 | Discovery Operating, Inc. | Martin | Queen #2 | 10,700 | 31735240 |
| 651508 | Dec 20, 2007 | Dec 20, 2007 | Discovery Operating, Inc. | Upton | Firefly A #3 | 10,600 | 46135615 |
| 646158 | Oct 23, 2007 | Oct 23, 2007 | Discovery Operating, Inc. | Midland | JW 7 #5 | 10,500 | 32935813 |
| 646156 | Oct 23, 2007 | Oct 23, 2007 | Discovery Operating, Inc. | Midland | JW 16 #5 | 10,500 | 32935812 |
| 646153 | Sep 19, 2007 | Sep 19, 2007 | Discovery Operating, Inc. | Midland | JW 16 #4 | 10,500 | 32935799 |
| 645598 | Sep 6, 2007 | Sep 6, 2007 | Discovery Operating, Inc. | Midland | JW 16 #6 | 10,500 | 32935796 |
| 639069 | May 19, 2007 | May 19, 2007 | Discovery Operating, Inc. | Pecos | Comanche Creek 13 #1 | 5,200 | 37137947 |
| 635272 | Apr 16, 2007 | Apr 16, 2007 | Discovery Operating, Inc. | Midland | JW 7 #4 | 10,500 | 32935712 |
| 635740 | Apr 14, 2007 | Apr 14, 2007 | Discovery Operating, Inc. | Midland | JW 16 #3 | 10,500 | 32935714 |
| 635733 | Apr 14, 2007 | Apr 14, 2007 | Discovery Operating, Inc. | Midland | JW 16 #2 | 10,500 | 32935713 |
| 632037 | Feb 1, 2007 | Feb 1, 2007 | Discovery Operating, Inc. | Pecos | Comanche Creek 25 #2 | 5,200 | 37137852 |
| 624106 | Aug 16, 2006 | Aug 16, 2006 | Discovery Operating, Inc. | Pecos | Comanche Creek 25 #1 | 5,200 | 37137776 |
| 623899 | Aug 11, 2006 | Aug 11, 2006 | Discovery Operating, Inc. | Pecos | Comanche Creek 35 #1 | 5,500 | 37137774 |
| 623897 | Aug 11, 2006 | Aug 11, 2006 | Discovery Operating, Inc. | Pecos | Comanche Creek 58 #1 | 5,500 | 37137775 |
| 619620 | Jun 16, 2006 | Jun 16, 2006 | Discovery Operating, Inc. | Midland | JW 8 #4 | 10,500 | 32935539 |
| 618590 | May 11, 2006 | May 11, 2006 | Discovery Operating, Inc. | Midland | JW 7 #2 | 10,500 | 32935533 |
| 618587 | May 11, 2006 | May 11, 2006 | Discovery Operating, Inc. | Midland | JW 7 #3 | 10,500 | 32935532 |
| 616442 | Mar 29, 2006 | Mar 29, 2006 | Discovery Operating, Inc. | Midland | JW 9 #3 | 11,800 | 32935500 |
| 616008 | Mar 23, 2006 | Mar 23, 2006 | Discovery Operating, Inc. | Midland | JW 16 #1 | 10,500 | 32935497 |
| 612472 | Jan 20, 2006 | Jan 20, 2006 | Discovery Operating, Inc. | Midland | Jacwil #2SW | 7,640 | 32931068 |
| 611830 | Jan 9, 2006 | Jan 9, 2006 | Discovery Operating, Inc. | Schleicher | Lin CZ #1 | 7,400 | 41332334 |
| 610550 | Dec 7, 2005 | Dec 7, 2005 | Discovery Operating, Inc. | Schleicher | R. L. Henderson A #2 | 7,000 | 41332325 |
| 610436 | Dec 7, 2005 | Dec 7, 2005 | Discovery Operating, Inc. | Schleicher | BR #1 | 6,900 | 41332326 |
| 610373 | Dec 5, 2005 | Dec 5, 2005 | Discovery Operating, Inc. | Midland | Windham 42 #4 | 10,600 | 32935420 |
| 609083 | Nov 8, 2005 | Nov 8, 2005 | Discovery Operating, Inc. | Midland | JW 8 #3 | 10,900 | 32935400 |
| 608859 | Nov 3, 2005 | Nov 3, 2005 | Discovery Operating, Inc. | Midland | JW 8 #2 | 10,900 | 32935399 |
| 608664 | Nov 1, 2005 | Nov 1, 2005 | Discovery Operating, Inc. | Schleicher | Ruth C #2 | 7,100 | 41332311 |
| 605935 | Sep 8, 2005 | Sep 8, 2005 | Discovery Operating, Inc. | Midland | Windham 38 #8 | 10,600 | 32935357 |
| 604763 | Aug 11, 2005 | Aug 11, 2005 | Discovery Operating, Inc. | Midland | JW 9 #2 | 11,800 | 32935345 |
| 604543 | Aug 8, 2005 | Aug 8, 2005 | Discovery Operating, Inc. | Midland | JW 7 #1 | 11,800 | 32935337 |
| 602130 | Jun 16, 2005 | Jun 16, 2005 | Discovery Operating, Inc. | Upton | CT 35 #2 | 10,600 | 46134870 |
| 602130Amendment | Jun 16, 2005 | Jun 16, 2005 | Discovery Operating, Inc. | Upton | CT 35 #2 | 10,600 | 46134870 |
| 602121 | Jun 16, 2005 | Jun 16, 2005 | Discovery Operating, Inc. | Upton | CT 35 #1 | 10,600 | 46134868 |
| 600713 | May 17, 2005 | May 17, 2005 | Discovery Operating, Inc. | Winkler | Cochise #4 | 9,900 | 49532924 |
| 600713Amendment | May 17, 2005 | May 17, 2005 | Discovery Operating, Inc. | Winkler | Cochise #4 | 10,550 | 49532924 |
| 559885 | Apr 5, 2005 | Apr 5, 2005 | Discovery Operating, Inc. | Tom Green | Gus #1 | 5,700 | 45132480 |
| 559756 | Apr 4, 2005 | Apr 4, 2005 | Discovery Operating, Inc. | Upton | CT 39 #7 | 10,600 | 46134766 |
| 559755 | Apr 4, 2005 | Apr 4, 2005 | Discovery Operating, Inc. | Upton | CT 39 #6 | 10,600 | 46134765 |
| 559754 | Apr 4, 2005 | Apr 4, 2005 | Discovery Operating, Inc. | Upton | CT 39 #5 | 10,600 | 46134767 |
| 559753 | Apr 4, 2005 | Apr 4, 2005 | Discovery Operating, Inc. | Upton | CT 39 #3 | 10,600 | 46134769 |
| 559752 | Apr 4, 2005 | Apr 4, 2005 | Discovery Operating, Inc. | Upton | CT 39 #4 | 10,600 | 46134768 |
| 559009 | Mar 17, 2005 | Mar 17, 2005 | Discovery Operating, Inc. | Midland | Windham 38 #7 | 10,600 | 32935268 |
| 558597 | Mar 9, 2005 | Mar 9, 2005 | Discovery Operating, Inc. | Mitchell | Morrison 36 #1 | 8,500 | 33534494 |
| 558218 | Feb 28, 2005 | Feb 28, 2005 | Discovery Operating, Inc. | Schleicher | Lin E #2 | 7,250 | 41332266 |
| 557934 | Feb 18, 2005 | Feb 18, 2005 | Discovery Operating, Inc. | Midland | JW 8 #1 | 11,800 | 32935256 |
| 557269 | Feb 4, 2005 | Feb 4, 2005 | Discovery Operating, Inc. | Winkler | Cochise #5 | 11,000 | 49532971 |
| 555738 | Jan 10, 2005 | Jan 10, 2005 | Discovery Operating, Inc. | Upton | CT 39 #1 | 10,600 | 46134708 |
| 555737 | Jan 10, 2005 | Jan 10, 2005 | Discovery Operating, Inc. | Upton | CT 39 #2 | 10,600 | 46134707 |
| 555210 | Dec 27, 2004 | Dec 27, 2004 | Discovery Operating, Inc. | Schleicher | Lin B #2 | 7,250 | 41332245 |
| 554184 | Dec 3, 2004 | Dec 3, 2004 | Discovery Operating, Inc. | Midland | Holzgraf 22 #7 R | 10,600 | 32935206 |
| 553059 | Nov 3, 2004 | Nov 3, 2004 | Discovery Operating, Inc. | Schleicher | Bearce #3 | 7,000 | 41332237 |
| 552724 | Oct 27, 2004 | Oct 27, 2004 | Discovery Operating, Inc. | Schleicher | Kaleb #1 | 7,000 | 41332234 |
| 551008 | Oct 25, 2004 | Oct 25, 2004 | Discovery Operating, Inc. | Midland | JW 9 #1 | 11,800 | 32935178 |
| 552434 | Oct 19, 2004 | Oct 19, 2004 | Discovery Operating, Inc. | Midland | Windham 38 #6 | 10,600 | 32935191 |
| 551335 | Sep 22, 2004 | Sep 22, 2004 | Discovery Operating, Inc. | Schleicher | XRL #5 | 7,000 | 41332230 |
| 550221 | Sep 10, 2004 | Sep 10, 2004 | Discovery Operating, Inc. | Glasscock | Cooper 36 #1 | 8,200 | 17333140 |
| 550045 | Aug 25, 2004 | Aug 25, 2004 | Discovery Operating, Inc. | Glasscock | Cooper 35 #1 | 8,300 | 17333138 |
| 549308 | Aug 11, 2004 | Aug 11, 2004 | Discovery Operating, Inc. | Upton | Geronimo 27 #7 | 10,600 | 46134607 |
| 548723 | Jul 27, 2004 | Jul 27, 2004 | Discovery Operating, Inc. | Midland | Holzgraf 22 #8 | 10,600 | 32935144 |