| 670922 | Sep 26, 2008 | Sep 26, 2008 | North Texas Llano Operating Corp | Tarrant | Blue Mound #1HH | 9,000 | 43933772 |
| 670125 | Sep 16, 2008 | Sep 16, 2008 | North Texas Llano Operating Corp | Denton | L.I.S.D. #1HH | 9,000 | 12133581 |
| 666011 | Aug 28, 2008 | Aug 28, 2008 | North Texas Llano Operating Corp | Dallas | Isaminger #1HH | 9,000 | 11330157 |
| 667439 | Aug 9, 2008 | Aug 9, 2008 | North Texas Llano Operating Corp | Dallas | Witt #1HH | 9,000 | 11330161 |
| 666025 | Jul 24, 2008 | Jul 24, 2008 | North Texas Llano Operating Corp | Dallas | Isaminger #3HH | 9,000 | 11330153 |
| 666019 | Jul 24, 2008 | Jul 24, 2008 | North Texas Llano Operating Corp | Dallas | Isaminger #2HH | 9,000 | 11330154 |
| 664119 | Jun 26, 2008 | Jun 26, 2008 | North Texas Llano Operating Corp | Johnson | Alvarado Isd #1HH | 9,000 | 25133053 |
| 663897 | Jun 25, 2008 | Jun 25, 2008 | North Texas Llano Operating Corp | Johnson | Hogan Acres #1HH | 9,000 | 25133041 |
| 660882 | May 20, 2008 | May 20, 2008 | North Texas Llano Operating Corp | Johnson | Keene #1HH | 9,000 | 25132913 |
| 659758 | May 9, 2008 | May 9, 2008 | North Texas Llano Operating Corp | Dallas | Gregory #1HH | 9,000 | 11330146 |
| 660028 | May 1, 2008 | May 1, 2008 | North Texas Llano Operating Corp | Tarrant | Rocky Top #1HH | 9,000 | 43933333 |
| 659718 | Apr 30, 2008 | Apr 30, 2008 | North Texas Llano Operating Corp | Dallas | Turbeville #1HH | 9,000 | 11330145 |
| 659286 | Apr 25, 2008 | Apr 25, 2008 | North Texas Llano Operating Corp | Johnson | Sanderford #1HH | 9,000 | 25132859 |
| 653394 | Jan 28, 2008 | Jan 28, 2008 | North Texas Llano Operating Corp | Johnson | Lintner East #1HH | 9,000 | 25132544 |
| 653210 | Jan 23, 2008 | Jan 23, 2008 | North Texas Llano Operating Corp | Johnson | Spring Valley #1HH | 9,000 | 25132531 |
| 650311 | Dec 11, 2007 | Dec 11, 2007 | North Texas Llano Operating Corp | Tarrant | Great SW Golf Course Unit #1HH | 9,000 | 43932899 |
| 649615 | Nov 20, 2007 | Nov 20, 2007 | North Texas Llano Operating Corp | Tarrant | Cook #4HH | 9,000 | 43932853 |
| 649580 | Nov 19, 2007 | Nov 19, 2007 | North Texas Llano Operating Corp | Tarrant | Cook #3HH | 9,000 | 43932852 |
| 647343 | Oct 16, 2007 | Oct 16, 2007 | North Texas Llano Operating Corp | Parker | City of Mineral Wells #1HH | 9,000 | 36734569 |
| 640875 | Jun 27, 2007 | Jun 27, 2007 | North Texas Llano Operating Corp | Johnson | Brewer #1HH | 9,000 | 25131929 |
| 639755 | Jun 6, 2007 | Jun 6, 2007 | North Texas Llano Operating Corp | Johnson | Savage #1H | 9,000 | 25131885 |
| 637756 | May 24, 2007 | May 24, 2007 | North Texas Llano Operating Corp | Dallas | May #1HH | 9,000 | 11330113 |
| 637756Amendment | May 24, 2007 | May 24, 2007 | North Texas Llano Operating Corp | Dallas | May Unit #1HH | 9,000 | 11330113 |
| 637756Amendment | May 24, 2007 | May 24, 2007 | North Texas Llano Operating Corp | Dallas | May Unit #1HH | 9,000 | 11330113 |
| 637995 | May 8, 2007 | May 8, 2007 | North Texas Llano Operating Corp | Tarrant | Bear Creek #1HH | 9,000 | 43932194 |
| 637994 | May 8, 2007 | May 8, 2007 | North Texas Llano Operating Corp | Tarrant | Bear Creek #2HH | 9,000 | 43932193 |
| 637935 | May 7, 2007 | May 7, 2007 | North Texas Llano Operating Corp | Johnson | Babbitt #1HH | 9,000 | 25131754 |
| 637935Amendment | May 7, 2007 | May 7, 2007 | North Texas Llano Operating Corp | Johnson | Babbitt #1HH | 9,000 | 25131754 |
| 636164 | Apr 4, 2007 | Apr 4, 2007 | North Texas Llano Operating Corp | Dallas | Nelson Sage #1HH | 9,000 | 11330108 |
| 636164Amendment | Apr 4, 2007 | Apr 4, 2007 | North Texas Llano Operating Corp | Dallas | Nelson Sage Unit #1HH | 9,000 | 11330108 |
| 636164Amendment | Apr 4, 2007 | Apr 4, 2007 | North Texas Llano Operating Corp | Dallas | Nelson Sage Unit #1HH | 9,000 | 11330108 |
| 634120 | Mar 1, 2007 | Mar 1, 2007 | North Texas Llano Operating Corp | Johnson | Petty #1HH | 8,000 | 25131544 |
| 634120Amendment | Mar 1, 2007 | Mar 1, 2007 | North Texas Llano Operating Corp | Johnson | Petty #1HH | 8,000 | 25131544 |
| 634048 | Feb 28, 2007 | Feb 28, 2007 | North Texas Llano Operating Corp | Johnson | Saldena #1H | 8,000 | 25131543 |
| 634048Amendment | Feb 28, 2007 | Feb 28, 2007 | North Texas Llano Operating Corp | Johnson | Saldena #1H | 12,000 | 25131543 |
| 630864 | Dec 21, 2006 | Dec 21, 2006 | North Texas Llano Operating Corp | Johnson | Franklin #1H | 9,000 | 25131394 |
| 630306 | Dec 12, 2006 | Dec 12, 2006 | North Texas Llano Operating Corp | Johnson | Cook Hills #2 HH | 8,200 | 25131369 |
| 626160 | Sep 19, 2006 | Sep 19, 2006 | North Texas Llano Operating Corp | Parker | Walden #1HH | 9,000 | 36734178 |
| 625696 | Sep 11, 2006 | Sep 11, 2006 | North Texas Llano Operating Corp | Tarrant | Harrington #1HH | 9,000 | 43931759 |
| 625347 | Sep 1, 2006 | Sep 1, 2006 | North Texas Llano Operating Corp | Denton | Patsy #1H | 9,000 | 12132951 |
| 625347Amendment | Sep 1, 2006 | Sep 1, 2006 | North Texas Llano Operating Corp | Denton | Smith, Patsy #1H | 9,000 | 12132951 |
| 625271 | Aug 31, 2006 | Aug 31, 2006 | North Texas Llano Operating Corp | Denton | Cummings #1H | 9,000 | 12132949 |
| 622902 | Jul 20, 2006 | Jul 20, 2006 | North Texas Llano Operating Corp | Johnson | Burleson "917" #1HH | 9,000 | 25131080 |
| 622021 | Jul 5, 2006 | Jul 5, 2006 | North Texas Llano Operating Corp | Johnson | Bednarz #1HH | 9,000 | 25131055 |
| 622021Amendment | Jul 5, 2006 | Jul 5, 2006 | North Texas Llano Operating Corp | Johnson | Bednarz #1HH | 9,000 | 25131055 |
| 620779 | Jun 12, 2006 | Jun 12, 2006 | North Texas Llano Operating Corp | Tarrant | Ervin #1H | 9,000 | 43931650 |
| 620779Amendment | Jun 12, 2006 | Jun 12, 2006 | North Texas Llano Operating Corp | Tarrant | Ervin #1H | 9,000 | 43931650 |
| 620159 | May 31, 2006 | May 31, 2006 | North Texas Llano Operating Corp | Parker | Outback #1HH | 9,000 | 36734032 |
| 619013 | May 10, 2006 | May 10, 2006 | North Texas Llano Operating Corp | Johnson | Clark #1H | 9,000 | 25130979 |
| 618673 | May 4, 2006 | May 4, 2006 | North Texas Llano Operating Corp | Johnson | Basden #1H | 9,000 | 25130972 |
| 618292 | Apr 27, 2006 | Apr 27, 2006 | North Texas Llano Operating Corp | Parker | Koonsman #2H | 9,000 | 36733995 |
| 617726 | Apr 18, 2006 | Apr 18, 2006 | North Texas Llano Operating Corp | Johnson | Johnston #1H | 9,000 | 25130933 |
| 616617 | Mar 29, 2006 | Mar 29, 2006 | North Texas Llano Operating Corp | Tarrant | Smith, Beverly #1H | 9,000 | 43931566 |
| 616397 | Mar 24, 2006 | Mar 24, 2006 | North Texas Llano Operating Corp | Johnson | Cook Hills #1HH | 8,900 | 25130869 |
| 615144 | Mar 3, 2006 | Mar 3, 2006 | North Texas Llano Operating Corp | Johnson | Smith #1HH | 8,900 | 25130823 |
| 614668 | Feb 22, 2006 | Feb 22, 2006 | North Texas Llano Operating Corp | Johnson | Owens #1H | 8,900 | 25130812 |
| 614668Amendment | Feb 22, 2006 | Feb 22, 2006 | North Texas Llano Operating Corp | Johnson | Owens #1H | 8,900 | 25130812 |
| 611590 | Dec 28, 2005 | Dec 28, 2005 | North Texas Llano Operating Corp | Johnson | Espinosa #1H | 8,900 | 25130712 |
| 611590Amendment | Dec 28, 2005 | Dec 28, 2005 | North Texas Llano Operating Corp | Johnson | Espinosa #1H | 8,900 | 25130712 |
| 610703 | Dec 7, 2005 | Dec 7, 2005 | North Texas Llano Operating Corp | Johnson | New #1H | 10,000 | 25130675 |
| 609165 | Nov 8, 2005 | Nov 8, 2005 | North Texas Llano Operating Corp | Parker | Lindsay #1H | 9,500 | 36733829 |
| 607831 | Oct 13, 2005 | Oct 13, 2005 | North Texas Llano Operating Corp | Parker | Koonsman #1HH | 8,900 | 36733806 |
| 607829 | Oct 13, 2005 | Oct 13, 2005 | North Texas Llano Operating Corp | Johnson | Campbell-Caudle #1HH | 8,900 | 25130590 |
| 605676 | Aug 31, 2005 | Aug 31, 2005 | North Texas Llano Operating Corp | Parker | RNR #1H | 7,500 | 36733777 |
| 605467 | Aug 25, 2005 | Aug 25, 2005 | North Texas Llano Operating Corp | Johnson | Adams #1H | 8,900 | 25130512 |
| 603976 | Jul 26, 2005 | Jul 26, 2005 | North Texas Llano Operating Corp | Tarrant | Cook #1 | 7,861 | 43930178 |
| 603964 | Jul 26, 2005 | Jul 26, 2005 | North Texas Llano Operating Corp | Tarrant | Cook #2H | 8,100 | 43930179 |
| 602524 | Jun 24, 2005 | Jun 24, 2005 | North Texas Llano Operating Corp | Tarrant | Reaves #1H | 8,800 | 43931292 |
| 601512 | Jun 2, 2005 | Jun 2, 2005 | North Texas Llano Operating Corp | Parker | Thomason #1H | 7,000 | 36733731 |
| 561256 | May 3, 2005 | May 3, 2005 | North Texas Llano Operating Corp | Johnson | Threemont #1H | 8,900 | 25130391 |
| 557018 | Jan 31, 2005 | Jan 31, 2005 | North Texas Llano Operating Corp | Johnson | Kelly-Rayburn #1H | 8,900 | 25130320 |
| 556000 | Jan 11, 2005 | Jan 11, 2005 | North Texas Llano Operating Corp | Denton | Wilson, Sam #2H | 8,900 | 12132515 |
| 555999 | Jan 11, 2005 | Jan 11, 2005 | North Texas Llano Operating Corp | Denton | Wilson, Sam #1H | 8,900 | 12132514 |
| 554869 | Dec 16, 2004 | Dec 16, 2004 | North Texas Llano Operating Corp | Johnson | Wilson #1H | 9,500 | 25130298 |
| 554869Amendment | Dec 16, 2004 | Dec 16, 2004 | North Texas Llano Operating Corp | Johnson | Wilson #1H | 9,500 | 25130298 |
| 554363 | Dec 3, 2004 | Dec 3, 2004 | North Texas Llano Operating Corp | Denton | Cummings #2H | 9,000 | 12132471 |
| 553328 | Nov 8, 2004 | Nov 8, 2004 | North Texas Llano Operating Corp | Denton | Bunn #2H | 9,500 | 12132460 |
| 553328Amendment | Nov 8, 2004 | Nov 8, 2004 | North Texas Llano Operating Corp | Denton | Bunn #2H | 9,500 | 12132460 |
| 551666 | Sep 29, 2004 | Sep 29, 2004 | North Texas Llano Operating Corp | Denton | Walling #1H | 9,000 | 12132432 |
| 551666Amendment | Sep 29, 2004 | Sep 29, 2004 | North Texas Llano Operating Corp | Denton | Walling #1H | 9,001 | 12132432 |
| 551148 | Sep 17, 2004 | Sep 17, 2004 | North Texas Llano Operating Corp | Johnson | Ball Heirs Joint Venture No. 1 #1 | 8,000 | 25130250 |
| 550247 | Aug 30, 2004 | Aug 30, 2004 | North Texas Llano Operating Corp | Johnson | Ball Heirs Joint Venture #2 | 8,000 | 25130241 |
| 550247Amendment | Aug 30, 2004 | Aug 30, 2004 | North Texas Llano Operating Corp | Johnson | Ball Heirs Joint Venture Unit B #1 | 8,000 | 25130241 |
| 550076 | Aug 27, 2004 | Aug 27, 2004 | North Texas Llano Operating Corp | Parker | Winston Ranch H #1 | 7,500 | 36733589 |
| 549885 | Aug 20, 2004 | Aug 20, 2004 | North Texas Llano Operating Corp | Parker | Winston Ranch I #1 | 7,500 | 36733588 |
| 549885Amendment | Aug 20, 2004 | Aug 20, 2004 | North Texas Llano Operating Corp | Parker | Winston Ranch I #1 | 7,500 | 36733588 |
| 549738 | Aug 18, 2004 | Aug 18, 2004 | North Texas Llano Operating Corp | Parker | Winston Ranch "A" #1 | 7,500 | 36733587 |
| 549552 | Aug 13, 2004 | Aug 13, 2004 | North Texas Llano Operating Corp | Denton | Cummings #1H | 9,500 | 12132395 |
| 549552Amendment | Aug 13, 2004 | Aug 13, 2004 | North Texas Llano Operating Corp | Denton | Cummings #1H | 9,500 | 12132395 |
| 548173 | Jul 15, 2004 | Jul 15, 2004 | North Texas Llano Operating Corp | Parker | Winston C #1 | 7,500 | 36733576 |
| 548173Amendment | Jul 15, 2004 | Jul 15, 2004 | North Texas Llano Operating Corp | Parker | Winston C #1 | 7,500 | 36733576 |
| 547536 | Jun 30, 2004 | Jun 30, 2004 | North Texas Llano Operating Corp | Parker | Winston Ranch G #1 | 7,500 | 36733571 |
| 547535 | Jun 29, 2004 | Jun 29, 2004 | North Texas Llano Operating Corp | Parker | Winston Ranch B #1 | 7,500 | 36733572 |
| 546527 | Jun 4, 2004 | Jun 4, 2004 | North Texas Llano Operating Corp | Johnson | Spencer #1 | 7,500 | 25130208 |
| 545740 | May 17, 2004 | May 17, 2004 | North Texas Llano Operating Corp | Parker | McFarland B #1 | 7,500 | 36733554 |
| 545357 | May 5, 2004 | May 5, 2004 | North Texas Llano Operating Corp | Denton | Bunn #1H | 9,500 | 12132315 |
| 545357Amendment | May 5, 2004 | May 5, 2004 | North Texas Llano Operating Corp | Denton | Bunn #1H | 9,500 | 12132315 |
| 544554 | Apr 16, 2004 | Apr 16, 2004 | North Texas Llano Operating Corp | Parker | McFarland A #1 | 7,500 | 36733537 |
| 544553 | Apr 16, 2004 | Apr 16, 2004 | North Texas Llano Operating Corp | Parker | McFarland "E" #1 | 7,500 | 36733535 |
| 544552 | Apr 16, 2004 | Apr 16, 2004 | North Texas Llano Operating Corp | Parker | McFarland "G" #1 | 7,500 | 36733536 |