| 618815 | May 15, 2006 | May 15, 2006 | Escondido Resources GP, LLC | La Salle | Appling #4 | 8,000 | 28331944 |
| 618813 | May 15, 2006 | May 15, 2006 | Escondido Resources GP, LLC | La Salle | Appling #5 | 8,000 | 28331943 |
| 619087 | May 12, 2006 | May 12, 2006 | Escondido Resources GP, LLC | Webb | Briscoe #28 | 6,000 | 47939512 |
| 619085 | May 11, 2006 | May 11, 2006 | Escondido Resources GP, LLC | Dimmit | Briscoe #26 | 6,000 | 12733346 |
| 618548 | May 2, 2006 | May 2, 2006 | Escondido Resources GP, LLC | La Salle | Appling #3B | 9,000 | 28331941 |
| 618455 | May 1, 2006 | May 1, 2006 | Escondido Resources GP, LLC | Dimmit | Briscoe #23 | 6,000 | 12733340 |
| 618449 | May 1, 2006 | May 1, 2006 | Escondido Resources GP, LLC | La Salle | Foster #24 | 8,000 | 28331940 |
| 616662 | Mar 29, 2006 | Mar 29, 2006 | Escondido Resources GP, LLC | Webb | Fasken #31 | 7,000 | 47939473 |
| 615752 | Mar 16, 2006 | Mar 16, 2006 | Escondido Resources GP, LLC | Webb | Fasken #30 | 7,000 | 47939459 |
| 615111 | Mar 8, 2006 | Mar 8, 2006 | Escondido Resources GP, LLC | Dimmit | Briscoe #36 | 5,800 | 12733325 |
| 615096 | Mar 8, 2006 | Mar 8, 2006 | Escondido Resources GP, LLC | Dimmit | Briscoe #29 | 5,800 | 12733327 |
| 615093 | Mar 8, 2006 | Mar 8, 2006 | Escondido Resources GP, LLC | Dimmit | Briscoe #25 | 5,800 | 12733318 |
| 614875 | Mar 6, 2006 | Mar 6, 2006 | Escondido Resources GP, LLC | La Salle | Foster, J. Estate #22 | 8,000 | 28331934 |
| 615229 | Mar 3, 2006 | Mar 3, 2006 | Escondido Resources GP, LLC | La Salle | Stockton "A" #1 | 8,000 | 28331536 |
| 615225 | Mar 3, 2006 | Mar 3, 2006 | Escondido Resources GP, LLC | La Salle | Gutierrez #2 | 8,000 | 28331521 |
| 613687 | Feb 15, 2006 | Feb 15, 2006 | Escondido Resources GP, LLC | Dimmit | Briscoe #22 | 5,800 | 12733317 |
| 613683 | Feb 15, 2006 | Feb 15, 2006 | Escondido Resources GP, LLC | Dimmit | Briscoe #24 | 5,800 | 12733315 |
| 613683Amendment | Feb 15, 2006 | Feb 15, 2006 | Escondido Resources GP, LLC | Dimmit | Briscoe #24 | 5,800 | 12733315 |
| 613686 | Feb 14, 2006 | Feb 14, 2006 | Escondido Resources GP, LLC | Dimmit | Briscoe #21 | 5,800 | 12733316 |
| 610625 | Feb 13, 2006 | Feb 13, 2006 | Escondido Resources GP, LLC | La Salle | Martin, J. C. #14 | 8,000 | 28331917 |
| 612790 | Jan 26, 2006 | Jan 26, 2006 | Escondido Resources GP, LLC | La Salle | Foster, J Estate #23 | 8,000 | 28331927 |
| 612803 | Jan 23, 2006 | Jan 23, 2006 | Escondido Resources GP, LLC | La Salle | Pryor #2 | 9,000 | 28331926 |
| 612372 | Jan 18, 2006 | Jan 18, 2006 | Escondido Resources GP, LLC | La Salle | Appling 1 #2 | 8,000 | 28331924 |
| 612372Amendment | Jan 18, 2006 | Jan 18, 2006 | Escondido Resources GP, LLC | La Salle | Appling #2 | 8,000 | 28331924 |
| 612371 | Jan 18, 2006 | Jan 18, 2006 | Escondido Resources GP, LLC | La Salle | Appling 1 #1 | 8,000 | 28331923 |
| 612386 | Jan 13, 2006 | Jan 13, 2006 | Escondido Resources GP, LLC | La Salle | Chato #3 | 9,000 | 28331922 |
| 612058 | Jan 12, 2006 | Jan 12, 2006 | Escondido Resources GP, LLC | Dimmit | Briscoe #19 | 5,800 | 12733311 |
| 612056 | Jan 12, 2006 | Jan 12, 2006 | Escondido Resources GP, LLC | Dimmit | Briscoe #20 | 5,800 | 12733310 |
| 612024 | Jan 6, 2006 | Jan 6, 2006 | Escondido Resources GP, LLC | Webb | Briscoe #18 | 5,800 | 47939381 |
| 611902 | Jan 5, 2006 | Jan 5, 2006 | Escondido Resources GP, LLC | La Salle | Winslow, O.H. #17 | 8,000 | 28331921 |
| 611263 | Dec 29, 2005 | Dec 29, 2005 | Escondido Resources GP, LLC | La Salle | Chato #2 | 7,800 | 28331920 |
| 611687 | Dec 28, 2005 | Dec 28, 2005 | Escondido Resources GP, LLC | Webb | Briscoe #17 | 8,000 | 47939369 |
| 611104 | Dec 15, 2005 | Dec 15, 2005 | Escondido Resources GP, LLC | La Salle | Chato #1 | 9,000 | 28331919 |
| 610956 | Dec 13, 2005 | Dec 13, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #16 | 6,000 | 12733307 |
| 610956Amendment | Dec 13, 2005 | Dec 13, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #16 | 5,800 | 12733307 |
| 610954 | Dec 13, 2005 | Dec 13, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #15 | 6,000 | 12733306 |
| 610954Amendment | Dec 13, 2005 | Dec 13, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #15 | 5,800 | 12733306 |
| 610943 | Dec 13, 2005 | Dec 13, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #14 | 6,000 | 12733305 |
| 610943Amendment | Dec 13, 2005 | Dec 13, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #14 | 6,000 | 12733305 |
| 610124 | Nov 28, 2005 | Nov 28, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #13 | 7,000 | 12733304 |
| 610120 | Nov 28, 2005 | Nov 28, 2005 | Escondido Resources GP, LLC | Webb | Briscoe #12 | 7,000 | 12733347 |
| 610120Amendment | Nov 28, 2005 | Nov 28, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #12 | 7,000 | 12733347 |
| 609571 | Nov 22, 2005 | Nov 22, 2005 | Escondido Resources GP, LLC | La Salle | Foster, J. Estate #21 | 8,000 | 28331912 |
| 609570 | Nov 21, 2005 | Nov 21, 2005 | Escondido Resources GP, LLC | La Salle | Foster, J. Estate #20 | 8,000 | 28331910 |
| 609718 | Nov 17, 2005 | Nov 17, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #11 | 5,800 | 12733303 |
| 609121 | Nov 9, 2005 | Nov 9, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #9 | 6,000 | 12733301 |
| 609121Amendment | Nov 9, 2005 | Nov 9, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #9 | 6,000 | 12733301 |
| 609080 | Nov 8, 2005 | Nov 8, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #10 | 6,000 | 12733300 |
| 609051 | Nov 8, 2005 | Nov 8, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #8 | 6,000 | 12733299 |
| 608570 | Oct 27, 2005 | Oct 27, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #7 | 6,000 | 12733296 |
| 607693 | Oct 14, 2005 | Oct 14, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #5 | 6,000 | 12733294 |
| 607689 | Oct 13, 2005 | Oct 13, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #6 | 6,000 | 12733293 |
| 607689Amendment | Oct 13, 2005 | Oct 13, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #6 | 6,000 | 12733293 |
| 607567 | Oct 13, 2005 | Oct 13, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #27 | 7,000 | 47939314 |
| 607566 | Oct 13, 2005 | Oct 13, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #23 | 7,000 | 47939300 |
| 607581 | Oct 11, 2005 | Oct 11, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #25 | 7,000 | 47939308 |
| 607579 | Oct 11, 2005 | Oct 11, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #24 | 7,000 | 47939307 |
| 607568 | Oct 11, 2005 | Oct 11, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #28 | 7,000 | 47939304 |
| 607564 | Oct 11, 2005 | Oct 11, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #22 | 7,000 | 47939301 |
| 607563 | Oct 11, 2005 | Oct 11, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #21 | 7,000 | 47939306 |
| 607555 | Oct 11, 2005 | Oct 11, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #20 | 7,000 | 47939303 |
| 607554 | Oct 11, 2005 | Oct 11, 2005 | Escondido Resources GP, LLC | Webb | Fasken, S. #26 | 7,000 | 47939302 |
| 607553 | Oct 11, 2005 | Oct 11, 2005 | Escondido Resources GP, LLC | Webb | Fasken #29 | 7,000 | 47939305 |
| 605362 | Aug 24, 2005 | Aug 24, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #4 | 6,000 | 12733289 |
| 602969 | Jul 6, 2005 | Jul 6, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #16 | 7,000 | 47939196 |
| 602967 | Jul 6, 2005 | Jul 6, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #15 | 7,000 | 47939195 |
| 602966 | Jul 6, 2005 | Jul 6, 2005 | Escondido Resources GP, LLC | Webb | Fasken #11 | 7,000 | 47939194 |
| 602963 | Jul 6, 2005 | Jul 6, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #9 | 7,000 | 47939193 |
| 602968 | Jul 5, 2005 | Jul 5, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #17 | 7,000 | 47939186 |
| 602961 | Jul 5, 2005 | Jul 5, 2005 | Escondido Resources GP, LLC | Webb | Fasken #8 | 7,000 | 47939191 |
| 602960 | Jul 5, 2005 | Jul 5, 2005 | Escondido Resources GP, LLC | Webb | Fasken #10 | 7,000 | 47939189 |
| 602958 | Jul 5, 2005 | Jul 5, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #6 | 7,000 | 47939192 |
| 602951 | Jul 5, 2005 | Jul 5, 2005 | Escondido Resources GP, LLC | Webb | Fasken #7 | 7,000 | 47939187 |
| 602909 | Jul 5, 2005 | Jul 5, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #14 | 7,000 | 47939184 |
| 602906 | Jul 1, 2005 | Jul 1, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #13 | 7,000 | 47939185 |
| 602905 | Jul 1, 2005 | Jul 1, 2005 | Escondido Resources GP, LLC | Webb | Fasken #12 | 7,000 | 47939183 |
| 602903 | Jul 1, 2005 | Jul 1, 2005 | Escondido Resources GP, LLC | Webb | Fasken B #19 | 7,000 | 47939182 |
| 602902 | Jul 1, 2005 | Jul 1, 2005 | Escondido Resources GP, LLC | Webb | Fasken #18 | 7,000 | 47939181 |
| 602346 | Jun 21, 2005 | Jun 21, 2005 | Escondido Resources GP, LLC | La Salle | Martin, J. C. #13 | 8,000 | 28331892 |
| 602310 | Jun 20, 2005 | Jun 20, 2005 | Escondido Resources GP, LLC | La Salle | Foster, J. Estate #8 | 8,012 | 28331833 |
| 601713 | Jun 13, 2005 | Jun 13, 2005 | Escondido Resources GP, LLC | Webb | Fasken #5 | 7,000 | 47939146 |
| 601900 | Jun 10, 2005 | Jun 10, 2005 | Escondido Resources GP, LLC | La Salle | Pryor #1 | 8,000 | 28331891 |
| 601821 | Jun 9, 2005 | Jun 9, 2005 | Escondido Resources GP, LLC | Webb | Fasken #2A | 7,000 | 47930625 |
| 601714 | Jun 7, 2005 | Jun 7, 2005 | Escondido Resources GP, LLC | La Salle | Stockton A #3 | 8,000 | 28331890 |
| 601437 | Jun 1, 2005 | Jun 1, 2005 | Escondido Resources GP, LLC | Webb | Fasken #4 | 7,000 | 47939141 |
| 601435 | Jun 1, 2005 | Jun 1, 2005 | Escondido Resources GP, LLC | Webb | Fasken #3 | 7,000 | 47939140 |
| 561118 | May 31, 2005 | May 31, 2005 | Escondido Resources GP, LLC | La Salle | Foster, J Estate #19 | 8,000 | 28331883 |
| 561115 | May 23, 2005 | May 23, 2005 | Escondido Resources GP, LLC | La Salle | Winslow, O. H. #15 | 8,000 | 28331881 |
| 600738 | May 18, 2005 | May 18, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #3 | 6,000 | 12733278 |
| 600494 | May 10, 2005 | May 10, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #2 | 7,000 | 12733275 |
| 600494Amendment | May 10, 2005 | May 10, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #2 | 7,000 | 12733275 |
| 561122 | Apr 27, 2005 | Apr 27, 2005 | Escondido Resources GP, LLC | La Salle | Winslow, O. H. #13 | 8,000 | 28331879 |
| 561117 | Apr 27, 2005 | Apr 27, 2005 | Escondido Resources GP, LLC | La Salle | Winslow, O. H. #12 | 8,000 | 28331882 |
| 561116 | Apr 27, 2005 | Apr 27, 2005 | Escondido Resources GP, LLC | La Salle | Winslow, O. H. #16 | 8,000 | 28331880 |
| 560724 | Apr 19, 2005 | Apr 19, 2005 | Escondido Resources GP, LLC | La Salle | Martin, J.C. #12 | 8,000 | 28331877 |
| 560723 | Apr 19, 2005 | Apr 19, 2005 | Escondido Resources GP, LLC | La Salle | Winslow, OH #14 | 8,000 | 28331876 |
| 560723Amendment | Apr 19, 2005 | Apr 19, 2005 | Escondido Resources GP, LLC | La Salle | Winslow, OH #14 | 8,000 | 28331876 |
| 560312 | Apr 13, 2005 | Apr 13, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #1 | 6,000 | 12733273 |
| 560312Amendment | Apr 13, 2005 | Apr 13, 2005 | Escondido Resources GP, LLC | Dimmit | Briscoe #1 | 6,000 | 12733273 |
| 559608 | Mar 30, 2005 | Mar 30, 2005 | Escondido Resources GP, LLC | La Salle | Foster, J Estate #6 | 8,000 | 28331812 |