| 618131Amendment | May 2, 2006 | May 2, 2006 | EOG Resources, Inc. | Cameron Minerals Trust #1HH | 7,000 | 14331131 |
| 614116 | Apr 26, 2006 | Apr 26, 2006 | Majestic Consulting, LC | Hamilton SWD #1 | 10,000 | 14331106 |
| 618121 | Apr 25, 2006 | Apr 25, 2006 | Infinity Oil & Gas of TX, Inc. | Hester #1HH | 4,300 | 14331130 |
| 618103 | Apr 25, 2006 | Apr 25, 2006 | Infinity Oil & Gas of TX, Inc. | Yardley-Brown #1HH | 4,300 | 14331129 |
| 618095 | Apr 25, 2006 | Apr 25, 2006 | Infinity Oil & Gas of TX, Inc. | Crumley-Boucher #1HH | 4,300 | 14331128 |
| 618095Amendment | Apr 25, 2006 | Apr 25, 2006 | Infinity Oil & Gas of TX, Inc. | Crumley-Boucher #1HH | 4,300 | 14331128 |
| 617784 | Apr 25, 2006 | Apr 25, 2006 | Denbury Onshore, LLC | Schmidt #1HH | 7,100 | 14331124 |
| 617771 | Apr 25, 2006 | Apr 25, 2006 | Denbury Onshore, LLC | Schmidt #1P | 5,000 | 14331126 |
| 617768 | Apr 25, 2006 | Apr 25, 2006 | Denbury Onshore, LLC | Hogan #1HH | 7,100 | 14331125 |
| 617737 | Apr 25, 2006 | Apr 25, 2006 | Denbury Onshore, LLC | Hogan #1P | 5,000 | 14331123 |
| 617737Amendment | Apr 25, 2006 | Apr 25, 2006 | Rimrock Energy, LLC | Hogan #1P | 4,480 | 14331123 |
| 618039 | Apr 24, 2006 | Apr 24, 2006 | Infinity Oil & Gas of TX, Inc. | Boucher-Murray #1HH | 4,300 | 14331127 |
| 618039Amendment | Apr 24, 2006 | Apr 24, 2006 | Infinity Oil & Gas of TX, Inc. | Boucher-Murray #1HH | 4,300 | 14331127 |
| 617882 | Apr 20, 2006 | Apr 20, 2006 | EOG Resources, Inc. | Houston Ranch #10HH | 5,500 | 14331122 |
| 617877 | Apr 19, 2006 | Apr 19, 2006 | EOG Resources, Inc. | Houston Ranch #9HH | 5,500 | 14331121 |
| 617642 | Apr 14, 2006 | Apr 14, 2006 | Terax Energy, Inc. | Mitchell #7HH | 4,500 | 14331120 |
| 617618 | Apr 14, 2006 | Apr 14, 2006 | Infinity Oil & Gas of TX, Inc. | Gaskey-Murray #2HH | 4,300 | 14331119 |
| 617259 | Apr 14, 2006 | Apr 14, 2006 | EOG Resources, Inc. | Good Living Trust #1HH | 5,500 | 14331117 |
| 617440 | Apr 12, 2006 | Apr 12, 2006 | Infinity Oil & Gas of TX, Inc. | Horton-Miertschin #2HH | 4,300 | 14331118 |
| 616614 | Mar 31, 2006 | Mar 31, 2006 | EOG Resources, Inc. | Houston Ranch #5HH | 5,500 | 14331116 |
| 616613 | Mar 31, 2006 | Mar 31, 2006 | EOG Resources, Inc. | Houston Ranch #4HH | 5,500 | 14331115 |
| 616480 | Mar 27, 2006 | Mar 27, 2006 | Denbury Onshore, LLC | Koonsman #1HH | 4,950 | 14331114 |
| 616475 | Mar 27, 2006 | Mar 27, 2006 | Denbury Onshore, LLC | Koonsman #1P | 4,999 | 14331113 |
| 616226 | Mar 22, 2006 | Mar 22, 2006 | Quicksilver Resources Inc. | Alfalfa #1HH | 6,600 | 14331112 |
| 566001 | Mar 16, 2006 | Mar 16, 2006 | EOG Resources, Inc. | Lesley Ranch #1HH | 5,100 | 14331111 |
| 566001Amendment | Mar 16, 2006 | Mar 16, 2006 | EOG Resources, Inc. | Lesley Ranch #1HH | 5,500 | 14331111 |
| 566001Amendment | Mar 16, 2006 | Mar 16, 2006 | EOG Resources, Inc. | Lesley Ranch #1HH | 5,500 | 14331111 |
| 615376 | Mar 7, 2006 | Mar 7, 2006 | Terax Energy, Inc. | Mitchell #6HH | 5,000 | 14331110 |
| 615279 | Mar 6, 2006 | Mar 6, 2006 | Terax Energy, Inc. | Mitchell #5HH | 5,000 | 14331109 |
| 614705 | Feb 28, 2006 | Feb 28, 2006 | Miller Operating Company LLC | C. W. Mauldin Gas Unit #1 | 4,085 | 14300140 |
| 614474 | Feb 27, 2006 | Feb 27, 2006 | Miller Operating Company LLC | W.B. Pipes Gas Unit #2 | 4,300 | 14330616 |
| 614473 | Feb 27, 2006 | Feb 27, 2006 | Miller Operating Company LLC | A.V. Alexander Gas Unit #2 | 4,100 | 14330703 |
| 611540 | Feb 27, 2006 | Feb 27, 2006 | Infinity Oil & Gas of TX, Inc. | Horton #4HH | 4,300 | 14331087 |
| 611540Amendment | Feb 27, 2006 | Feb 27, 2006 | Infinity Oil & Gas of TX, Inc. | Horton #4HH | 4,300 | 14331087 |
| 614703 | Feb 24, 2006 | Feb 24, 2006 | Miller Operating Company LLC | McInroe, Carroll #2 | 4,320 | 14330622 |
| 614492 | Feb 22, 2006 | Feb 22, 2006 | Denbury Onshore, LLC | Davis #1HH | 4,900 | 14331108 |
| 614486 | Feb 21, 2006 | Feb 21, 2006 | Miller Operating Company LLC | C.W. Mauldin Gas Unit #3 | 3,400 | 14330962 |
| 614486Amendment | Feb 21, 2006 | Feb 21, 2006 | Miller Operating Company LLC | C.W. Mauldin Gas Unit #3 | 3,400 | 14330962 |
| 613731 | Feb 21, 2006 | Feb 21, 2006 | Infinity Oil & Gas of TX, Inc. | Horton-Miertschin #1H | 4,300 | 14331107 |
| 614394 | Feb 17, 2006 | Feb 17, 2006 | Miller Operating Company LLC | A.H. Blackwell Gas Unit #2 | 4,300 | 14330705 |
| 614394Amendment | Feb 17, 2006 | Feb 17, 2006 | Miller Operating Company LLC | A. H. Blackwell Gas Unit #2 | 4,300 | 14330705 |
| 613980 | Feb 16, 2006 | Feb 16, 2006 | EOG Resources, Inc. | Lietz #1HH | 5,500 | 14331105 |
| 613943 | Feb 16, 2006 | Feb 16, 2006 | EOG Resources, Inc. | French Ranch #4HH | 5,200 | 14331104 |
| 613937 | Feb 16, 2006 | Feb 16, 2006 | EOG Resources, Inc. | French Ranch #3HH | 5,200 | 14331103 |
| 613930 | Feb 16, 2006 | Feb 16, 2006 | EOG Resources, Inc. | French Ranch #2HH | 5,200 | 14331102 |
| 613910 | Feb 16, 2006 | Feb 16, 2006 | EOG Resources, Inc. | French Ranch #1HH | 5,200 | 14331101 |
| 614107 | Feb 14, 2006 | Feb 14, 2006 | Miller Operating Company LLC | Dillingham/Fulfer #2 | 4,200 | 14330675 |
| 614006 | Feb 13, 2006 | Feb 13, 2006 | Miller Operating Company LLC | Russell, C.C. #1 | 4,202 | 14300245 |
| 613559 | Feb 8, 2006 | Feb 8, 2006 | Denbury Onshore, LLC | Davis #1P | 7,700 | 14331100 |
| 613559Amendment | Feb 8, 2006 | Feb 8, 2006 | Denbury Onshore, LLC | Davis #1P | 7,700 | 14331100 |
| 613202 | Feb 1, 2006 | Feb 1, 2006 | EOG Resources, Inc. | Houston Ranch #8HH | 5,500 | 14331099 |
| 613159 | Jan 31, 2006 | Jan 31, 2006 | EOG Resources, Inc. | Houston Ranch #7HH | 5,500 | 14331098 |
| 613154 | Jan 31, 2006 | Jan 31, 2006 | EOG Resources, Inc. | Houston Ranch #6HH | 5,500 | 14331097 |
| 613220 | Jan 30, 2006 | Jan 30, 2006 | Terax Energy, Inc. | Mitchell #4HH | 5,000 | 14331096 |
| 612288 | Jan 12, 2006 | Jan 12, 2006 | Infinity Oil & Gas of TX, Inc. | Ward-Carder #1H | 4,300 | 14331095 |
| 612263 | Jan 12, 2006 | Jan 12, 2006 | Infinity Oil & Gas of TX, Inc. | Henson #1H | 4,300 | 14331094 |
| 612263Amendment | Jan 12, 2006 | Jan 12, 2006 | Infinity Oil & Gas of TX, Inc. | Henson #1HH | 4,300 | 14331094 |
| 612068 | Jan 9, 2006 | Jan 9, 2006 | Infinity Oil & Gas of TX, Inc. | Grimes #1H | 4,300 | 14331093 |
| 612068Amendment | Jan 9, 2006 | Jan 9, 2006 | Infinity Oil & Gas of TX, Inc. | Grimes #1HH | 4,300 | 14331093 |
| 612067 | Jan 9, 2006 | Jan 9, 2006 | Infinity Oil & Gas of TX, Inc. | Pack #1H | 4,300 | 14331091 |
| 612065 | Jan 9, 2006 | Jan 9, 2006 | Infinity Oil & Gas of TX, Inc. | Henson #2H | 4,300 | 14331092 |
| 611779 | Jan 5, 2006 | Jan 5, 2006 | Eig Resources, LLC | Ditmore #1 | 5,000 | 14331090 |
| 611740 | Jan 3, 2006 | Jan 3, 2006 | Eig Resources, LLC | Greenway #1 | 5,000 | 14331089 |
| 611724 | Jan 3, 2006 | Jan 3, 2006 | Eig Resources, LLC | Bragg #1 | 5,000 | 14331088 |
| 611545 | Dec 30, 2005 | Dec 30, 2005 | P. L. O. | Ward #1HH | 4,750 | 14331086 |
| 611539 | Dec 29, 2005 | Dec 29, 2005 | Infinity Oil & Gas of TX, Inc. | Horton #3HH | 4,300 | 14331085 |
| 611539Amendment | Dec 29, 2005 | Dec 29, 2005 | Infinity Oil & Gas of TX, Inc. | Horton #3HH | 4,300 | 14331085 |
| 611539Amendment | Dec 29, 2005 | Dec 29, 2005 | Infinity Oil & Gas of TX, Inc. | Horton #3HH | 4,300 | 14331085 |
| 610564 | Dec 8, 2005 | Dec 8, 2005 | EOG Resources, Inc. | Crum Unit #1HH | 5,500 | 14331084 |
| 610564Amendment | Dec 8, 2005 | Dec 8, 2005 | EOG Resources, Inc. | Crum Unit #1HH | 5,500 | 14331084 |
| 610138 | Nov 29, 2005 | Nov 29, 2005 | Terax Energy, Inc. | Mitchell #3HH | 4,500 | 14331083 |
| 610030 | Nov 23, 2005 | Nov 23, 2005 | Infinity Oil & Gas of TX, Inc. | Horton #2HH | 4,300 | 14331082 |
| 610030Amendment | Nov 23, 2005 | Nov 23, 2005 | Infinity Oil & Gas of TX, Inc. | Horton #2HH | 4,300 | 14331082 |
| 609925 | Nov 22, 2005 | Nov 22, 2005 | Infinity Oil & Gas of TX, Inc. | Ward-Greenway #1 | 4,300 | 14331080 |
| 609923 | Nov 22, 2005 | Nov 22, 2005 | Infinity Oil & Gas of TX, Inc. | Quarles #1HH | 4,300 | 14331081 |
| 609528 | Nov 15, 2005 | Nov 15, 2005 | Blackwater Oil & Gas Corporation | Hallmark B #2 | 3,875 | 14331044 |
| 608736 | Nov 1, 2005 | Nov 1, 2005 | Terax Energy, Inc. | Mitchell #2HH | 5,000 | 14331079 |
| 608057 | Oct 20, 2005 | Oct 20, 2005 | EOG Resources, Inc. | JLB Ranch #1HH | 7,000 | 14331078 |
| 607594 | Oct 10, 2005 | Oct 10, 2005 | Terax Energy, Inc. | Joe Mitchell #1HH | 4,500 | 14331077 |
| 607594Amendment | Oct 10, 2005 | Oct 10, 2005 | Terax Energy, Inc. | Joe Mitchell #1HH | 5,000 | 14331077 |
| 606785 | Sep 23, 2005 | Sep 23, 2005 | EOG Resources, Inc. | Houston Ranch #2HH | 6,500 | 14331076 |
| 606732 | Sep 23, 2005 | Sep 23, 2005 | Crown Equipment Co. | Huckabee "B" #4 | 6,500 | 14331075 |
| 606729 | Sep 21, 2005 | Sep 21, 2005 | Crown Equipment Co. | Huckabee "B" #3 | 6,500 | 14331074 |
| 606681 | Sep 21, 2005 | Sep 21, 2005 | Crown Equipment Co. | Huckabee "A" #2 | 7,000 | 14331073 |
| 606313 | Sep 14, 2005 | Sep 14, 2005 | Cholla Petroleum, Inc. | Carlton #1 | 4,999 | 14331072 |
| 606066 | Sep 8, 2005 | Sep 8, 2005 | Crown Equipment Co. | Jones #1 | 4,900 | 14331071 |
| 605205 | Aug 19, 2005 | Aug 19, 2005 | EOG Resources, Inc. | Houston Ranch #1HH | 6,000 | 14331070 |
| 603742 | Jul 21, 2005 | Jul 21, 2005 | Infinity Oil & Gas of TX, Inc. | Greenway #2HH | 4,300 | 14331069 |
| 603742Amendment | Jul 21, 2005 | Jul 21, 2005 | Infinity Oil & Gas of TX, Inc. | Ward-Greenway #2HH | 4,300 | 14331069 |
| 603686 | Jul 20, 2005 | Jul 20, 2005 | Infinity Oil & Gas of TX, Inc. | Greenway #3 | 4,300 | 14331068 |
| 601696 | Jun 23, 2005 | Jun 23, 2005 | Infinity Oil & Gas of TX, Inc. | Tackett-Felton #1HH | 4,300 | 14331065 |
| 601696Amendment | Jun 23, 2005 | Jun 23, 2005 | Infinity Oil & Gas of TX, Inc. | Tackett-Felton #1HH | 4,300 | 14331065 |
| 601577 | Jun 16, 2005 | Jun 16, 2005 | Infinity Oil & Gas of TX, Inc. | Gaskey #2HH | 4,400 | 14331063 |
| 601577Amendment | Jun 16, 2005 | Jun 16, 2005 | Infinity Oil & Gas of TX, Inc. | Gaskey #2HH | 4,400 | 14331063 |
| 601796 | Jun 9, 2005 | Jun 9, 2005 | Infinity Oil & Gas of TX, Inc. | Barron-Murray #1HH | 4,500 | 14331067 |
| 601796Amendment | Jun 9, 2005 | Jun 9, 2005 | Infinity Oil & Gas of TX, Inc. | Barron-Murray #1HH | 4,500 | 14331067 |
| 601001 | Jun 8, 2005 | Jun 8, 2005 | Infinity Oil & Gas of TX, Inc. | Winters #1 | 4,500 | 14331056 |
| 601698 | Jun 6, 2005 | Jun 6, 2005 | Infinity Oil & Gas of TX, Inc. | Tackett #1 | 4,300 | 14331066 |
| 601698Amendment | Jun 6, 2005 | Jun 6, 2005 | Infinity Oil & Gas of TX, Inc. | Tackett #1 | 4,300 | 14331066 |
| 601576 | Jun 3, 2005 | Jun 3, 2005 | Infinity Oil & Gas of TX, Inc. | Miller #1HH | 4,300 | 14331062 |