| 641631 | Aug 8, 2007 | Aug 8, 2007 | Houston Exploration Company, The | Zapata | Haynes #31 | 15,000 | 50535918 |
| 640693 | Jun 22, 2007 | Jun 22, 2007 | Houston Exploration Company, The | Kleberg | Canales, A. T. #104 | 11,600 | 27332490 |
| 640399 | Jun 18, 2007 | Jun 18, 2007 | Houston Exploration Company, The | Kleberg | Canales, A. T. #103 | 11,600 | 27332489 |
| 638814 | Jun 18, 2007 | Jun 18, 2007 | Houston Exploration Company, The | Zapata | Bernardo Gas Unit #17 | 14,400 | 50535878 |
| 640329 | Jun 15, 2007 | Jun 15, 2007 | Houston Exploration Company, The | Rusk | Rusk County Airport Gas Unit 1 #11 | 11,200 | 40134360 |
| 638882 | Jun 15, 2007 | Jun 15, 2007 | Houston Exploration Company, The | Rusk | Dollar Gas Unit No. 1 #8 | 11,200 | 40134326 |
| 638816 | Jun 14, 2007 | Jun 14, 2007 | Houston Exploration Company, The | Zapata | Yzaguirre-Leo Gas Unit #16 | 11,900 | 50535877 |
| 640199 | Jun 13, 2007 | Jun 13, 2007 | Houston Exploration Company, The | Rusk | White, Galan 1A #1 | 11,200 | 40134357 |
| 638866 | May 18, 2007 | May 18, 2007 | Houston Exploration Company, The | Rusk | Alexander Heirs #1 | 11,300 | 40134325 |
| 638793 | May 17, 2007 | May 17, 2007 | Houston Exploration Company, The | Zapata | Yzaguirre-Leo Gas Unit #17 | 12,000 | 50535876 |
| 638211 | May 15, 2007 | May 15, 2007 | Houston Exploration Company, The | Zapata | Amando Garza Trust #3 | 10,500 | 50535869 |
| 638391 | May 14, 2007 | May 14, 2007 | Houston Exploration Company, The | Kleberg | Canales, E. G. #41 | 12,000 | 27332486 |
| 638264 | May 11, 2007 | May 11, 2007 | Houston Exploration Company, The | Zapata | Cuellar, Maria #20 | 10,000 | 50535871 |
| 637914 | May 11, 2007 | May 11, 2007 | Houston Exploration Company, The | Zapata | Haynes "D" #2 | 14,300 | 50533279 |
| 637900 | May 10, 2007 | May 10, 2007 | Houston Exploration Company, The | Zapata | Haynes "B" #5 | 14,500 | 50533086 |
| 637475 | Apr 27, 2007 | Apr 27, 2007 | Houston Exploration Company, The | Rusk | White, Galan #1 | 11,200 | 40134306 |
| 636412 | Apr 10, 2007 | Apr 10, 2007 | Houston Exploration Company, The | Starr | Slick, T. B. Estate "a" 529 #237 | 9,000 | 42734109 |
| 636409 | Apr 10, 2007 | Apr 10, 2007 | Houston Exploration Company, The | Kleberg | Canales, A. T. #102 | 11,900 | 27332482 |
| 636409Amendment | Apr 10, 2007 | Apr 10, 2007 | Houston Exploration Company, The | Kleberg | Canales, A. T. #102 | 12,000 | 27332482 |
| 636215 | Apr 5, 2007 | Apr 5, 2007 | Houston Exploration Company, The | Starr | Slick, T. B. Estate "B" 536 #236 | 9,000 | 42734108 |
| 635856 | Mar 30, 2007 | Mar 30, 2007 | Houston Exploration Company, The | Rusk | Dollar Gas Unit No. 1 #6 | 11,200 | 40134276 |
| 635840 | Mar 30, 2007 | Mar 30, 2007 | Houston Exploration Company, The | Harrison | Wheeler Gas Unit #8 | 10,300 | 20333882 |
| 633499 | Mar 23, 2007 | Mar 23, 2007 | Houston Exploration Company, The | Zapata | Haynes #32 | 15,000 | 50535814 |
| 633493 | Mar 14, 2007 | Mar 14, 2007 | Houston Exploration Company, The | Zapata | Haynes #33 | 15,000 | 50535813 |
| 633488 | Mar 14, 2007 | Mar 14, 2007 | Houston Exploration Company, The | Zapata | Haynes #28 | 12,400 | 50535812 |
| 633485 | Mar 14, 2007 | Mar 14, 2007 | Houston Exploration Company, The | Zapata | Haynes #30 | 15,000 | 50535811 |
| 634734 | Mar 13, 2007 | Mar 13, 2007 | Houston Exploration Company, The | Kleberg | Canales, A. T. #101 | 11,600 | 27332480 |
| 634700 | Mar 13, 2007 | Mar 13, 2007 | Houston Exploration Company, The | Starr | T. B. Slick Estate "B" 534 Dr #235 | 9,500 | 42734095 |
| 632681 | Feb 28, 2007 | Feb 28, 2007 | Houston Exploration Company, The | Zapata | De Los Santos Gas Unit 1 #10 | 14,700 | 50535805 |
| 633862 | Feb 23, 2007 | Feb 23, 2007 | Houston Exploration Company, The | Harrison | Furrh Gas Unit #5 | 10,300 | 20333850 |
| 633682 | Feb 22, 2007 | Feb 22, 2007 | Houston Exploration Company, The | Rusk | Hinson Gas Unit No. 1 #5 | 11,200 | 40134233 |
| 633682Amendment | Feb 22, 2007 | Feb 22, 2007 | Houston Exploration Company, The | Rusk | Hinson Gas Unit No. 1 #5 | 11,200 | 40134233 |
| 633644 | Feb 20, 2007 | Feb 20, 2007 | Houston Exploration Company, The | Rusk | Hinson Gas Unit No. 1 #14 | 11,200 | 40134230 |
| 633644Amendment | Feb 20, 2007 | Feb 20, 2007 | Houston Exploration Company, The | Rusk | Hinson Gas Unit No. 1 #14 | 11,200 | 40134230 |
| 633636 | Feb 20, 2007 | Feb 20, 2007 | Houston Exploration Company, The | Rusk | Hinson Gas Unit No. 1 #6 | 11,200 | 40134229 |
| 633636Amendment | Feb 20, 2007 | Feb 20, 2007 | Houston Exploration Company, The | Rusk | Hinson Gas Unit No. 1 #6 | 11,200 | 40134229 |
| 633595 | Feb 20, 2007 | Feb 20, 2007 | Houston Exploration Company, The | Zapata | Bustamante Gas Unit 1 #16 | 14,800 | 50535817 |
| 633589 | Feb 20, 2007 | Feb 20, 2007 | Houston Exploration Company, The | Zapata | Bustamante Gas Unit 1 #15 | 15,000 | 50535816 |
| 633586 | Feb 20, 2007 | Feb 20, 2007 | Houston Exploration Company, The | Zapata | Bustamante Gas Unit 1 #13 | 14,760 | 50535815 |
| 632808 | Feb 5, 2007 | Feb 5, 2007 | Houston Exploration Company, The | Hidalgo | Santa Cruz Farms #21 | 9,500 | 21533589 |
| 632808Amendment | Feb 5, 2007 | Feb 5, 2007 | Houston Exploration Company, The | Hidalgo | Santa Cruz Farms #21 | 9,500 | 21533589 |
| 632788 | Feb 5, 2007 | Feb 5, 2007 | Houston Exploration Company, The | Kleberg | A. T. Canales #100 | 11,600 | 27332477 |
| 632680 | Jan 31, 2007 | Jan 31, 2007 | Houston Exploration Company, The | Hidalgo | Santa Cruz Farms #20 | 9,500 | 21533588 |
| 632612 | Jan 30, 2007 | Jan 30, 2007 | Houston Exploration Company, The | Zapata | De Los Santos Gas Unit 1 #8 | 14,700 | 50535803 |
| 632489 | Jan 26, 2007 | Jan 26, 2007 | Houston Exploration Company, The | Zapata | Yzaguirre-Leo Gas Unit #15 | 12,000 | 50535796 |
| 632488 | Jan 26, 2007 | Jan 26, 2007 | Houston Exploration Company, The | Starr | Slick, T. B. Estate "B" 536 #206 | 9,600 | 42734085 |
| 631934 | Jan 18, 2007 | Jan 18, 2007 | Houston Exploration Company, The | Hidalgo | Santa Cruz Farms #19 | 9,100 | 21533577 |
| 631899 | Jan 18, 2007 | Jan 18, 2007 | Houston Exploration Company, The | Starr | T. B. Slick Estate "B" 536 #233 | 9,000 | 42734082 |
| 631898 | Jan 18, 2007 | Jan 18, 2007 | Houston Exploration Company, The | Zapata | Haynes #29 | 15,000 | 50535787 |
| 631898Amendment | Jan 18, 2007 | Jan 18, 2007 | Houston Exploration Company, The | Zapata | Haynes #29 | 15,000 | 50535787 |
| 631897 | Jan 18, 2007 | Jan 18, 2007 | Houston Exploration Company, The | Zapata | Haynes #34 | 15,000 | 50535786 |
| 631718 | Jan 11, 2007 | Jan 11, 2007 | Houston Exploration Company, The | Zapata | De Los Santos Gas Unit 1 #9 | 12,500 | 50535781 |
| 631680 | Jan 11, 2007 | Jan 11, 2007 | Houston Exploration Company, The | Starr | T. B. Slick Estate "B" 536 #234 | 9,000 | 42734080 |
| 629423 | Jan 11, 2007 | Jan 11, 2007 | Houston Exploration Company, The | Rusk | Hurley Gas Unit No. 1 #3 | 11,200 | 40134144 |
| 631031 | Dec 27, 2006 | Dec 27, 2006 | Houston Exploration Company, The | Zapata | Bustamante Gas Unit 1 #14 | 12,300 | 50535775 |
| 630498 | Dec 13, 2006 | Dec 13, 2006 | Houston Exploration Company, The | Hidalgo | Fee 827 Unit #6 | 9,500 | 21533559 |
| 629240 | Dec 13, 2006 | Dec 13, 2006 | Houston Exploration Company, The | Webb | Vaquillas Ranch "1" #4 | 9,600 | 47939702 |
| 629462 | Nov 27, 2006 | Nov 27, 2006 | Houston Exploration Company, The | Hidalgo | Wysong Gas Unit #3 | 9,500 | 21533551 |
| 628243 | Nov 21, 2006 | Nov 21, 2006 | Houston Exploration Company, The | Starr | Slick, T. B. Estate "B-222" #228 | 7,700 | 42734052 |
| 628243Amendment | Nov 21, 2006 | Nov 21, 2006 | Houston Exploration Company, The | Starr | Slick, T. B. Estate "B-222" #228 | 7,700 | 42734052 |
| 628760 | Nov 9, 2006 | Nov 9, 2006 | Houston Exploration Company, The | Zapata | Dominguez #7 | 10,000 | 50535734 |
| 628754 | Nov 9, 2006 | Nov 9, 2006 | Houston Exploration Company, The | Zapata | Dominguez #6 | 10,400 | 50535733 |
| 628754Amendment | Nov 9, 2006 | Nov 9, 2006 | Houston Exploration Company, The | Zapata | Dominguez #6 | 10,400 | 50535733 |
| 628632 | Nov 9, 2006 | Nov 9, 2006 | Houston Exploration Company, The | Starr | T. B. Slick Estate #175 Unit #223 | 8,300 | 42734057 |
| 628686 | Nov 7, 2006 | Nov 7, 2006 | Houston Exploration Company, The | Zapata | Bernardo Gas Unit #16 | 12,000 | 50535732 |
| 628648 | Nov 7, 2006 | Nov 7, 2006 | Houston Exploration Company, The | Starr | T. B. Slick Estate "B-266" #232 | 7,000 | 42734059 |
| 628644 | Nov 7, 2006 | Nov 7, 2006 | Houston Exploration Company, The | Starr | T. B. Slick Estate "B" 536 #231 | 9,000 | 42734058 |
| 626042 | Nov 3, 2006 | Nov 3, 2006 | Houston Exploration Company, The | Zapata | Maria Cuellar #19 | 10,000 | 50535699 |
| 628277 | Oct 31, 2006 | Oct 31, 2006 | Houston Exploration Company, The | Starr | Cameron, W. I. 138 #25 | 6,350 | 42732587 |
| 628242 | Oct 30, 2006 | Oct 30, 2006 | Houston Exploration Company, The | Kleberg | Canales, E. G. #40 | 11,800 | 27332468 |
| 627690 | Oct 17, 2006 | Oct 17, 2006 | Houston Exploration Company, The | Zapata | Bustamante Gas Unit 1 #12 | 15,000 | 50535715 |
| 625164 | Oct 17, 2006 | Oct 17, 2006 | Houston Exploration Company, The | Webb | Vaquillas Ranch "3" #2 | 9,600 | 47939638 |
| 627538 | Oct 16, 2006 | Oct 16, 2006 | Houston Exploration Company, The | Webb | Vaquillas Ranch "4" #1 | 10,400 | 47939681 |
| 625889 | Oct 11, 2006 | Oct 11, 2006 | Houston Exploration Company, The | Zapata | Bernardo Gas Unit #15 | 12,000 | 50535690 |
| 627103 | Oct 5, 2006 | Oct 5, 2006 | Houston Exploration Company, The | Starr | Slick, T. B. Estate "B-222" #229 | 3,900 | 42734045 |
| 625406 | Oct 2, 2006 | Oct 2, 2006 | Houston Exploration Company, The | Zapata | Leonardo #45 | 11,100 | 50535677 |
| 626808 | Sep 29, 2006 | Sep 29, 2006 | Houston Exploration Company, The | Kleberg | A. T. Canales #99 | 13,000 | 27332467 |
| 626554 | Sep 26, 2006 | Sep 26, 2006 | Houston Exploration Company, The | Rusk | Dollar Gas Unit No. 1 #5 | 11,200 | 40134079 |
| 625181 | Sep 22, 2006 | Sep 22, 2006 | Houston Exploration Company, The | Zapata | Daisy #6 | 12,100 | 50535676 |
| 625923 | Sep 15, 2006 | Sep 15, 2006 | Houston Exploration Company, The | Starr | T. B. Slick Estate "B" 536 #213 | 7,500 | 42734039 |
| 624754 | Sep 15, 2006 | Sep 15, 2006 | Houston Exploration Company, The | Zapata | Ramirez, Abel #12 | 9,500 | 50535666 |
| 625852 | Sep 13, 2006 | Sep 13, 2006 | Houston Exploration Company, The | Kleberg | Canales, A. T. #98 | 12,000 | 27332465 |
| 625837 | Sep 13, 2006 | Sep 13, 2006 | Houston Exploration Company, The | Harrison | Dickard Gas Unit #4 | 10,300 | 20333667 |
| 625805 | Sep 12, 2006 | Sep 12, 2006 | Houston Exploration Company, The | Harrison | Cook Gas Unit #4 | 10,300 | 20333665 |
| 625718 | Sep 11, 2006 | Sep 11, 2006 | Houston Exploration Company, The | Zapata | Amando Garza Trust #2 | 10,500 | 50535688 |
| 625714 | Sep 11, 2006 | Sep 11, 2006 | Houston Exploration Company, The | Zapata | Amando Garza Trust #1 | 10,500 | 50535687 |
| 625689 | Sep 11, 2006 | Sep 11, 2006 | Houston Exploration Company, The | Starr | T. B. Slick Estate 528-485 Unit #218 | 7,500 | 42734038 |
| 625687 | Sep 11, 2006 | Sep 11, 2006 | Houston Exploration Company, The | Webb | Vaquillas Ranch "3" #3 | 9,600 | 47939644 |
| 625677 | Sep 8, 2006 | Sep 8, 2006 | Houston Exploration Company, The | Zapata | Amando #2 | 10,500 | 50535686 |
| 625626 | Sep 8, 2006 | Sep 8, 2006 | Houston Exploration Company, The | Rusk | Dollar Gas Unit No. 1 #7 | 11,200 | 40134059 |
| 624760 | Aug 23, 2006 | Aug 23, 2006 | Houston Exploration Company, The | Zapata | Daisy #7 | 12,100 | 50535667 |
| 624692 | Aug 22, 2006 | Aug 22, 2006 | Houston Exploration Company, The | Rusk | Hurley Gas Unit No. 1 #2 | 11,200 | 40134040 |
| 623226 | Aug 21, 2006 | Aug 21, 2006 | Houston Exploration Company, The | Webb | Vaquillas Ranch "2" #3 | 9,900 | 47939601 |
| 623225 | Aug 21, 2006 | Aug 21, 2006 | Houston Exploration Company, The | Webb | Vaquillas Ranch "2" #4 | 9,900 | 47939600 |
| 624636 | Aug 18, 2006 | Aug 18, 2006 | Houston Exploration Company, The | Rusk | Hinson Gas Unit No. 1 #13 | 11,200 | 40134039 |
| 623214 | Aug 18, 2006 | Aug 18, 2006 | Houston Exploration Company, The | Starr | Slick, T. B. Estate "B" 536 #225 | 8,100 | 42734014 |
| 623211 | Aug 18, 2006 | Aug 18, 2006 | Houston Exploration Company, The | Starr | Slick, T. B. Estate "B" 536 #224 | 8,100 | 42734013 |
| 623188 | Aug 18, 2006 | Aug 18, 2006 | Houston Exploration Company, The | Starr | Slick, T. B. Estate "B" 222 #221 | 6,700 | 42734010 |
| 624485 | Aug 17, 2006 | Aug 17, 2006 | Houston Exploration Company, The | Zapata | Yzaguirre-Leo #14 | 12,000 | 50535662 |
| 622721 | Aug 17, 2006 | Aug 17, 2006 | Houston Exploration Company, The | Zapata | Asche #112 | 13,600 | 50535647 |