| 624856 | Aug 25, 2006 | Aug 25, 2006 | Texland Petroleum, L.P. | Muldrow #16 | 5,500 | 44532139 |
| 624854 | Aug 25, 2006 | Aug 25, 2006 | Texland Petroleum, L.P. | Muldrow #15 | 5,500 | 44532138 |
| 622263 | Aug 8, 2006 | Aug 8, 2006 | Chevron U. S. A. Inc. | Mallet Land & Cattle Co. #47HH | 11,500 | 44530176 |
| 621966 | Aug 4, 2006 | Aug 4, 2006 | Occidental Permian Ltd. | Devitt, Christine "B" #12 | 5,200 | 44532134 |
| 622782 | Jul 26, 2006 | Jul 26, 2006 | Petrosource Production Co. L.P. | Wellman Unit #46 | 7,902 | 44500088 |
| 623083 | Jul 24, 2006 | Jul 24, 2006 | Manhattan Petroleum, Inc. | SB-A #9106 | 10,500 | 44500668 |
| 622701 | Jul 17, 2006 | Jul 17, 2006 | Nearburg Producing Company | Pusey 39 #2 | 9,000 | 44532137 |
| 622701Amendment | Jul 17, 2006 | Jul 17, 2006 | Nearburg Producing Company | Pusey 39 #2 | 9,000 | 44532137 |
| 622391 | Jul 14, 2006 | Jul 14, 2006 | Chevron U. S. A. Inc. | Investors Royalty Co. "A" #49HH | 11,000 | 44531941 |
| 622391Amendment | Jul 14, 2006 | Jul 14, 2006 | Chevron U. S. A. Inc. | Investors Royalty Co. "A" #49HH | 11,000 | 44531941 |
| 622380 | Jul 14, 2006 | Jul 14, 2006 | Chevron U. S. A. Inc. | Investors Royalty Co. "A" #40HH | 11,000 | 44531875 |
| 622380Amendment | Jul 14, 2006 | Jul 14, 2006 | Chevron U. S. A. Inc. | Investors Royalty Co. "A" #40HH | 11,000 | 44531875 |
| 622326 | Jul 14, 2006 | Jul 14, 2006 | Chevron U. S. A. Inc. | Investors Royalty Co. "A" #43HH | 11,000 | 44531898 |
| 622290 | Jul 14, 2006 | Jul 14, 2006 | Texland Petroleum, L.P. | Wellman, SW San Andres Unit #40 HH | 5,500 | 44532136 |
| 622243 | Jul 14, 2006 | Jul 14, 2006 | Chevron U. S. A. Inc. | Investors Royalty Co. "A" #34HH | 10,100 | 44531701 |
| 622362 | Jul 12, 2006 | Jul 12, 2006 | Manhattan Petroleum, Inc. | SB-D #7205 | 10,500 | 44500352 |
| 622108 | Jul 10, 2006 | Jul 10, 2006 | Cambrian Management Ltd | Royal #1 | 13,272 | 44531163 |
| 622158 | Jul 7, 2006 | Jul 7, 2006 | Manhattan Petroleum, Inc. | SB-A #9109 | 10,500 | 44532135 |
| 621651 | Jun 27, 2006 | Jun 27, 2006 | Manhattan Petroleum, Inc. | SB-C #7201D | 10,500 | 44500678 |
| 620883 | Jun 13, 2006 | Jun 13, 2006 | BP America Production Company | Beck, G. L. #9 | 8,700 | 44532132 |
| 620719 | Jun 9, 2006 | Jun 9, 2006 | Manhattan Petroleum, Inc. | SB-B #9108 | 10,500 | 44500680 |
| 620718 | Jun 9, 2006 | Jun 9, 2006 | Manhattan Petroleum, Inc. | SB-A #9107 | 10,500 | 44532131 |
| 620641 | Jun 9, 2006 | Jun 9, 2006 | Manhattan Petroleum, Inc. | SB-A #9103 | 10,500 | 44500132 |
| 620517 | Jun 8, 2006 | Jun 8, 2006 | Manhattan Petroleum, Inc. | SB-C #7201A | 10,500 | 44530897 |
| 619916 | May 25, 2006 | May 25, 2006 | Manhattan Petroleum, Inc. | Cot #1 | 10,500 | 44500504 |
| 619218 | May 18, 2006 | May 18, 2006 | Manhattan Petroleum, Inc. | Cotten Zephyr #1 | 10,500 | 44531209 |
| 618033 | May 2, 2006 | May 2, 2006 | Texland Petroleum, L.P. | Pool-Hannes "36" #17 | 5,500 | 44500401 |
| 617994 | Apr 28, 2006 | Apr 28, 2006 | Texland Petroleum, L.P. | Pool-Hannes "36" #10 | 5,500 | 44532128 |
| 618306 | Apr 27, 2006 | Apr 27, 2006 | Gruy Petroleum Management Co. | Granbury #4 | 8,500 | 44532130 |
| 618305 | Apr 27, 2006 | Apr 27, 2006 | Gruy Petroleum Management Co. | Granbury #3 | 8,500 | 44532129 |
| 618305Amendment | Apr 27, 2006 | Apr 27, 2006 | Cimarex Energy Co. of Colorado | Granbury #3 | 8,500 | 44532129 |
| 615619 | Apr 21, 2006 | Apr 21, 2006 | XTO Energy Inc. | Prentice Northeast Unit #277 | 7,600 | 44532119 |
| 617918 | Apr 20, 2006 | Apr 20, 2006 | XTO Energy Inc. | Prentice Northeast Unit #113B | 6,500 | 44500217 |
| 617612 | Apr 17, 2006 | Apr 17, 2006 | Nearburg Producing Company | Tudor 38 #1 R | 13,542 | 44530879 |
| 617160 | Apr 14, 2006 | Apr 14, 2006 | Texland Petroleum, L.P. | Pool "37" #1 | 5,500 | 44532126 |
| 617163 | Apr 12, 2006 | Apr 12, 2006 | Texland Petroleum, L.P. | Pool "37" #2 | 5,500 | 44532125 |
| 617210 | Apr 7, 2006 | Apr 7, 2006 | C & F Petroleum, Inc. | Brownfield #1 | 5,000 | 44532124 |
| 617104 | Apr 6, 2006 | Apr 6, 2006 | Henry Petroleum LP | KATHY36 #1 | 12,000 | 44532123 |
| 616879 | Apr 6, 2006 | Apr 6, 2006 | Henry Petroleum LP | GEORGIE44 #1 | 12,000 | 44532122 |
| 614650 | Mar 30, 2006 | Mar 30, 2006 | Merit Energy Company | Mallet Land & Cattle Co. #40H | 5,048 | 44530061 |
| 616468 | Mar 28, 2006 | Mar 28, 2006 | C & F Petroleum, Inc. | Denison #2 | 5,000 | 44532121 |
| 615819 | Mar 23, 2006 | Mar 23, 2006 | XTO Energy Inc. | Prentice Northeast Unit #617 | 7,600 | 44532120 |
| 615331 | Mar 14, 2006 | Mar 14, 2006 | Texland Petroleum, L.P. | Muldrow 19 #2XHH | 5,500 | 44532098 |
| 615573 | Mar 9, 2006 | Mar 9, 2006 | XTO Energy Inc. | Prentice Northeast Unit #609 | 7,600 | 44532118 |
| 612914 | Feb 23, 2006 | Feb 23, 2006 | R K Petroleum Corp. | Pusey #1R | 10,200 | 44500565 |
| 613851 | Feb 16, 2006 | Feb 16, 2006 | XTO Energy Inc. | Prentice Northeast Unit #802 | 7,600 | 44532115 |
| 613827 | Feb 16, 2006 | Feb 16, 2006 | XTO Energy Inc. | Prentice Northeast Unit #588 | 7,600 | 44532114 |
| 613822 | Feb 16, 2006 | Feb 16, 2006 | XTO Energy Inc. | Prentice Northeast Unit #520 | 7,400 | 44532117 |
| 613793 | Feb 15, 2006 | Feb 15, 2006 | Texland Petroleum, L.P. | SW Wellman Unit #39 HH | 5,600 | 44532116 |
| 614010 | Feb 13, 2006 | Feb 13, 2006 | Gruy Petroleum Management Co. | Lilly #1 | 8,300 | 44531873 |
| 613795 | Feb 8, 2006 | Feb 8, 2006 | XTO Energy Inc. | Prentice Northeast Unit #731 | 7,600 | 44532113 |
| 612426 | Jan 18, 2006 | Jan 18, 2006 | Texland Petroleum, L.P. | Beasley 48 #4 | 5,500 | 44532112 |
| 612296 | Jan 18, 2006 | Jan 18, 2006 | R K Petroleum Corp. | Acuff #1R | 8,000 | 44531176 |
| 611954 | Jan 6, 2006 | Jan 6, 2006 | Texland Petroleum, L.P. | Muldrow #14 | 5,500 | 44532111 |
| 611949 | Jan 6, 2006 | Jan 6, 2006 | Texland Petroleum, L.P. | Beasley 48 #3 | 5,500 | 44532110 |
| 611221 | Jan 5, 2006 | Jan 5, 2006 | R K Petroleum Corp. | Givan #1X | 8,800 | 44532109 |
| 611119 | Dec 20, 2005 | Dec 20, 2005 | BP America Production Company | G. L. Beck #8 | 8,700 | 44532108 |
| 610574 | Dec 8, 2005 | Dec 8, 2005 | Texland Petroleum, L.P. | Muldrow 50 #1 | 5,500 | 44532107 |
| 610573 | Dec 7, 2005 | Dec 7, 2005 | Texland Petroleum, L.P. | Muldrow 19 #4 | 5,500 | 44532106 |
| 610014 | Nov 28, 2005 | Nov 28, 2005 | Nearburg Producing Company | Pusey 39 #1R | 13,675 | 44531015 |
| 610014Amendment | Nov 28, 2005 | Nov 28, 2005 | Nearburg Producing Company | Pusey 39 #1R | 13,675 | 44531015 |
| 609333 | Nov 14, 2005 | Nov 14, 2005 | Texland Petroleum, L.P. | Muldrow #13 | 5,500 | 44532105 |
| 609329 | Nov 14, 2005 | Nov 14, 2005 | Texland Petroleum, L.P. | Muldrow #11 | 5,500 | 44532104 |
| 608484 | Oct 28, 2005 | Oct 28, 2005 | Texland Petroleum, L.P. | Beasley 48 #2 | 5,500 | 44532103 |
| 608483 | Oct 28, 2005 | Oct 28, 2005 | Texland Petroleum, L.P. | Beasley 48 #1 | 5,500 | 44532102 |
| 608462 | Oct 28, 2005 | Oct 28, 2005 | Texland Petroleum, L.P. | Muldrow #12 | 5,500 | 44532101 |
| 607995 | Oct 19, 2005 | Oct 19, 2005 | Devon Energy Production Co, L.P. | Six Hearts, Ltd., et Al #1H | 5,615 | 44530589 |
| 607337 | Oct 7, 2005 | Oct 7, 2005 | Merit Energy Company | Mallet Land & Cattle Company #1103 | 8,000 | 44532100 |
| 607086 | Sep 29, 2005 | Sep 29, 2005 | Texland Petroleum, L.P. | Muldrow 19 #3 | 5,500 | 44532099 |
| 602932 | Jul 27, 2005 | Jul 27, 2005 | Apache Corporation | Coons, W. A. #78 | 6,000 | 44532097 |
| 602930 | Jul 27, 2005 | Jul 27, 2005 | Apache Corporation | Coons, W. A. #75 | 6,000 | 44532096 |
| 603629 | Jul 19, 2005 | Jul 19, 2005 | R K Petroleum Corp. | Givan #1R | 8,800 | 44510018 |
| 603333 | Jul 14, 2005 | Jul 14, 2005 | Texland Petroleum, L.P. | Muldrow 19 #2X | 5,500 | 44532098 |
| 601206 | Jun 29, 2005 | Jun 29, 2005 | XTO Energy Inc. | Prentice Northeast Unit #160 | 7,450 | 44531180 |
| 602561 | Jun 27, 2005 | Jun 27, 2005 | Trail Mountain, Inc. | Texland #1 | 8,500 | 44532095 |
| 602361 | Jun 22, 2005 | Jun 22, 2005 | Texland Petroleum, L.P. | Muldrow #10 | 5,500 | 44532094 |
| 601792 | Jun 9, 2005 | Jun 9, 2005 | Devon Energy Production Co, L.P. | Wellman West Unit #24HH | 5,665 | 44531903 |
| 601792Amendment | Jun 9, 2005 | Jun 9, 2005 | Devon Energy Production Co, L.P. | Wellman West Unit #24HH | 5,665 | 44531903 |
| 601760 | Jun 8, 2005 | Jun 8, 2005 | Devon Energy Production Co, L.P. | Wellman West Unit #9HWH | 5,592 | 44530588 |
| 560833 | Jun 7, 2005 | Jun 7, 2005 | Trail Mountain, Inc. | Christine #2 | 8,500 | 44532090 |
| 601608 | Jun 6, 2005 | Jun 6, 2005 | Devon Energy Production Co, L.P. | Wellman West Unit #21HWH | 5,640 | 44530852 |
| 601608Amendment | Jun 6, 2005 | Jun 6, 2005 | Devon Energy Production Co, L.P. | Wellman West Unit #21HWH | 5,640 | 44530852 |
| 601560 | Jun 6, 2005 | Jun 6, 2005 | Merit Energy Company | Muldrow Unit #14Y | 5,400 | 44532093 |
| 600472 | May 10, 2005 | May 10, 2005 | Texland Petroleum, L.P. | Muldrow #7 | 5,500 | 44532092 |
| 600253 | May 5, 2005 | May 5, 2005 | XTO Energy Inc. | Prentice Northeast Unit #281 | 7,350 | 44532091 |
| 559964 | Apr 6, 2005 | Apr 6, 2005 | Texland Petroleum, L.P. | Muldrow #9 | 5,500 | 44532089 |
| 559961 | Apr 6, 2005 | Apr 6, 2005 | Texland Petroleum, L.P. | Muldrow 19 #2 | 5,500 | 44532088 |
| 559949 | Apr 6, 2005 | Apr 6, 2005 | Texland Petroleum, L.P. | Muldrow #8 | 5,500 | 44532087 |
| 559947 | Apr 5, 2005 | Apr 5, 2005 | Texland Petroleum, L.P. | Muldrow #6 | 5,500 | 44532085 |
| 559945 | Apr 5, 2005 | Apr 5, 2005 | Texland Petroleum, L.P. | Muldrow #5 | 5,500 | 44532086 |
| 558256 | Mar 2, 2005 | Mar 2, 2005 | Texland Petroleum, L.P. | Wellman SW San Andres Unit #37H | 5,500 | 44532033 |
| 558255 | Mar 2, 2005 | Mar 2, 2005 | Texland Petroleum, L.P. | Wellman SW San Andres Unit #34H | 5,550 | 44531661 |
| 558044 | Feb 24, 2005 | Feb 24, 2005 | Texland Petroleum, L.P. | Wellman, SW. (San Andres) #38H | 5,600 | 44532034 |
| 557389 | Feb 11, 2005 | Feb 11, 2005 | Breck Operating Corp. | White #2 R | 4,920 | 44532084 |
| 556418 | Jan 19, 2005 | Jan 19, 2005 | XTO Energy Inc. | Prentice Northeast Unit #8 | 7,400 | 44500098 |
| 556407 | Jan 19, 2005 | Jan 19, 2005 | XTO Energy Inc. | Prentice Northeast Unit #698 | 7,350 | 44532083 |
| 556406 | Jan 19, 2005 | Jan 19, 2005 | XTO Energy Inc. | Prentice Northeast Unit #618 | 7,350 | 44532082 |
| 556405 | Jan 19, 2005 | Jan 19, 2005 | XTO Energy Inc. | Prentice Northeast Unit #566 | 7,350 | 44532081 |
| 556404 | Jan 19, 2005 | Jan 19, 2005 | XTO Energy Inc. | Prentice Northeast Unit #553 | 7,350 | 44532080 |
| 556403 | Jan 19, 2005 | Jan 19, 2005 | XTO Energy Inc. | Prentice Northeast Unit #538 | 7,350 | 44532079 |