| 651110 | Jan 3, 2008 | Jan 3, 2008 | Sandhawk Energy, LLC | Wesley West #9ST | 12,000 | 37330941 |
| 651567 | Dec 21, 2007 | Dec 21, 2007 | Meridian Resource & Expl Llc,the | Davis A-388 #1H | 19,000 | 37331112 |
| 651346 | Dec 18, 2007 | Dec 18, 2007 | Samson Lone Star, LLC | Bsmc #2 | 15,015 | 37331040 |
| 650389 | Dec 10, 2007 | Dec 10, 2007 | Devon Energy Production Co, L.P. | Harris A-1070 #1HH | 13,000 | 37331111 |
| 649649 | Nov 26, 2007 | Nov 26, 2007 | Famcor Oil, Inc. | Blackstone Minerals "G" #7 | 5,100 | 37331109 |
| 649741 | Nov 21, 2007 | Nov 21, 2007 | Famcor Oil, Inc. | Granbury #102 | 4,500 | 37331110 |
| 649528 | Nov 17, 2007 | Nov 17, 2007 | Unit Petroleum Company | Quinn #2 | 12,000 | 37331108 |
| 649090 | Nov 12, 2007 | Nov 12, 2007 | Famcor Oil, Inc. | Matthews #1 | 5,500 | 37331106 |
| 649002 | Nov 12, 2007 | Nov 12, 2007 | Unit Petroleum Company | Kyser Gas Unit #2 | 12,700 | 37331107 |
| 647602 | Oct 17, 2007 | Oct 17, 2007 | BBX Operating, L.L.C. | Bear Creek Southeast Unit #1HH | 14,000 | 37331105 |
| 647602Amendment | Oct 17, 2007 | Oct 17, 2007 | BBX Operating, L.L.C. | Bear Creek Southeast Unit #1HH | 14,000 | 37331105 |
| 647439 | Oct 15, 2007 | Oct 15, 2007 | Samson Lone Star, LLC | Dick & Faling #1 | 6,016 | 37330608 |
| 645054 | Oct 8, 2007 | Oct 8, 2007 | Pogo Producing Company | Black Stone-Allen A-1 #2H | 13,500 | 37331101 |
| 646191 | Oct 4, 2007 | Oct 4, 2007 | Barrow-Shaver Resources Co. | Bergman Atchley #2 | 8,000 | 37331104 |
| 645146 | Oct 1, 2007 | Oct 1, 2007 | Famcor Oil, Inc. | Santa FE #b #2R | 8,000 | 37331102 |
| 643079Amendment | Sep 21, 2007 | Sep 21, 2007 | Meridian Resource & Expl Llc,the | Freeman #1H | 19,700 | 37331098 |
| 643079Amendment | Sep 21, 2007 | Sep 21, 2007 | Meridian Resource & Expl Llc,the | Freeman #1H | 19,700 | 37331098 |
| 645433 | Sep 5, 2007 | Sep 5, 2007 | Delta Exploration Company, Inc. | Best-Kenesson Willsource Unit #2HH | 15,000 | 37331103 |
| 645433Amendment | Sep 5, 2007 | Sep 5, 2007 | Delta Exploration Company, Inc. | Best-Kenesson Willsource Unit #2HH | 15,000 | 37331103 |
| 645433Amendment | Sep 5, 2007 | Sep 5, 2007 | Delta Exploration Company, Inc. | Best-Kenesson Willsource Unit #2HH | 15,000 | 37331103 |
| 644564 | Aug 20, 2007 | Aug 20, 2007 | Famcor Oil, Inc. | Blackstone Minerals "G" #6 | 5,100 | 37331100 |
| 643763 | Aug 10, 2007 | Aug 10, 2007 | Delta Exploration Company, Inc. | Baxter A-141 #1HH | 14,500 | 37331099 |
| 643763Amendment | Aug 10, 2007 | Aug 10, 2007 | Delta Exploration Company, Inc. | Baxter A-141 #1HH | 14,500 | 37331099 |
| 643763Amendment | Aug 10, 2007 | Aug 10, 2007 | Delta Exploration Company, Inc. | Baxter A-141 #1HH | 14,500 | 37331099 |
| 643079 | Aug 3, 2007 | Aug 3, 2007 | Meridian Resource & Expl Llc,the | Freeman #1H | 19,700 | 37331098 |
| 641773 | Jul 13, 2007 | Jul 13, 2007 | Unit Petroleum Company | BP Fee #3 | 12,500 | 37331097 |
| 641335 | Jul 10, 2007 | Jul 10, 2007 | Devon Energy Production Co, L.P. | Blackstone Minerals A-917 #1HH | 12,500 | 37331095 |
| 641335Amendment | Jul 10, 2007 | Jul 10, 2007 | Devon Energy Production Co, L.P. | Blackstone Minerals A-917 #1HH | 12,500 | 37331095 |
| 641335Amendment | Jul 10, 2007 | Jul 10, 2007 | Devon Energy Production Co, L.P. | Blackstone Minerals A-917 #1HH | 12,500 | 37331095 |
| 641369 | Jul 6, 2007 | Jul 6, 2007 | Indexgeo & Associates, Inc. | Baker #1 | 3,000 | 37331096 |
| 640973 | Jun 28, 2007 | Jun 28, 2007 | Unit Petroleum Company | Wing #1 | 14,500 | 37331094 |
| 640402 | Jun 18, 2007 | Jun 18, 2007 | Pogo Producing Company | Black Stone Gilleland Unit #1H | 14,000 | 37331093 |
| 639747 | Jun 8, 2007 | Jun 8, 2007 | BBX Operating, L.L.C. | Bear Creek North Unit #1HH | 13,350 | 37331092 |
| 639625 | Jun 7, 2007 | Jun 7, 2007 | Meridian Resource & Expl Llc,the | Black Stone Minerals #5H | 18,000 | 37331091 |
| 637074 | Jun 7, 2007 | Jun 7, 2007 | Prime Operating Company | Stephens #1 | 2,680 | 37330975 |
| 638867 | May 22, 2007 | May 22, 2007 | Devon Energy Production Co, L.P. | SPM A-2 #1HH | 13,000 | 37331090 |
| 637792 | May 3, 2007 | May 3, 2007 | Sanchez Oil & Gas Corporation | Lcsl a 390 #1 | 17,200 | 37331089 |
| 637373 | Apr 30, 2007 | Apr 30, 2007 | Meridian Resource & Expl Llc,the | Black Stone Minerals #2H | 18,000 | 37331052 |
| 636364 | Apr 13, 2007 | Apr 13, 2007 | Meridian Resource & Expl Llc,the | Black Stone Minerals #04H | 18,000 | 37331088 |
| 636364Amendment | Apr 13, 2007 | Apr 13, 2007 | Meridian Resource & Expl Llc,the | Black Stone Minerals #04H | 18,492 | 37331088 |
| 635204 | Apr 12, 2007 | Apr 12, 2007 | BBX Operating, L.L.C. | Black Stone McDonnold #1HH | 13,728 | 37331086 |
| 635204Amendment | Apr 12, 2007 | Apr 12, 2007 | BBX Operating, L.L.C. | Black Stone McDonnold #1HH | 13,728 | 37331086 |
| 635350 | Mar 27, 2007 | Mar 27, 2007 | Pogo Producing Company | Black Stone-Carter #1H | 13,500 | 37331087 |
| 635350Amendment | Mar 27, 2007 | Mar 27, 2007 | Pogo Producing Company | Black Stone-Carter #1H | 14,000 | 37331087 |
| 635350Amendment | Mar 27, 2007 | Mar 27, 2007 | Pogo Producing Company LLC | Black Stone-Carter #1H | 14,000 | 37331087 |
| 633553 | Mar 9, 2007 | Mar 9, 2007 | Prime Operating Company | Blackstone Unit #1 | 3,000 | 37331031 |
| 634074 | Mar 1, 2007 | Mar 1, 2007 | Delta Exploration Company, Inc. | Dickens A-214 #1HH | 14,500 | 37331085 |
| 634074Amendment | Mar 1, 2007 | Mar 1, 2007 | Delta Exploration Company, Inc. | Dickens A-214 #1HH | 14,500 | 37331085 |
| 631870 | Jan 18, 2007 | Jan 18, 2007 | Unit Petroleum Company | Marsh Gas Unit #2 | 12,300 | 37331084 |
| 629684 | Dec 14, 2006 | Dec 14, 2006 | Finch-Crestmont | Kirby Lumber Co. #5 | 4,230 | 37330030 |
| 629031 | Dec 1, 2006 | Dec 1, 2006 | Black Stone Energy Company, LLC | Black Stone Woods A-82 #1HH | 14,300 | 37331083 |
| 629031Amendment | Dec 1, 2006 | Dec 1, 2006 | Delta Exploration Company, Inc. | Woods A-82 #1HH | 14,300 | 37331083 |
| 629031Amendment | Dec 1, 2006 | Dec 1, 2006 | Delta Exploration Company, Inc. | Woods A-82 #1HH | 14,300 | 37331083 |
| 628682 | Nov 7, 2006 | Nov 7, 2006 | Unit Petroleum Company | Quinn #1 | 12,300 | 37331082 |
| 621477 | Oct 16, 2006 | Oct 16, 2006 | Comstock Oil & Gas, LP | Alabama Coushatta Unit 5 #9 | 14,500 | 37331072 |
| 626423 | Sep 26, 2006 | Sep 26, 2006 | Pogo Producing Company | Black Stone-Batson Unit #1H | 13,500 | 37331081 |
| 624828 | Aug 25, 2006 | Aug 25, 2006 | Newfield Exploration Company | Davis, Wirt #1 | 16,000 | 37331080 |
| 624798 | Aug 23, 2006 | Aug 23, 2006 | Unit Petroleum Company | BP "F" Gas Unit #1 | 12,200 | 37331079 |
| 624063 | Aug 17, 2006 | Aug 17, 2006 | Famcor Oil, Inc. | Black Stone Minerals "G" #5 | 5,300 | 37331078 |
| 623690 | Aug 2, 2006 | Aug 2, 2006 | Delta Exploration Company, Inc. | Simmons a-70 2H Unit #1H | 15,000 | 37331077 |
| 623690Amendment | Aug 2, 2006 | Aug 2, 2006 | Delta Exploration Company, Inc. | Simmons a-70 2H Unit #1H | 15,000 | 37331077 |
| 623690Amendment | Aug 2, 2006 | Aug 2, 2006 | Delta Exploration Company, Inc. | Simmons A-70 #2HH | 15,000 | 37331077 |
| 621483 | Aug 2, 2006 | Aug 2, 2006 | Comstock Oil & Gas, LP | Alabama Coushatta Unit 6 #10 | 14,500 | 37331073 |
| 621483Amendment | Aug 2, 2006 | Aug 2, 2006 | Comstock Oil & Gas, LP | Alabama Coushatta Unit 6 #10 | 14,500 | 37331073 |
| 622466 | Jul 13, 2006 | Jul 13, 2006 | Gordy Oil Company | Rogge, Mildred #1 | 3,000 | 37331076 |
| 622363 | Jul 12, 2006 | Jul 12, 2006 | Unit Petroleum Company | BP "D" #2 | 13,200 | 37331075 |
| 621746 | Jun 29, 2006 | Jun 29, 2006 | Ballard Exploration Company,inc. | Parrish #1 | 14,500 | 37331074 |
| 621746Amendment | Jun 29, 2006 | Jun 29, 2006 | BBX Operating, L.L.C. | Parrish #1REH | 14,500 | 37331074 |
| 621512 | Jun 26, 2006 | Jun 26, 2006 | Pogo Producing Company | Black Stone-Allen A-1 #1H | 13,500 | 37331071 |
| 621512Amendment | Jun 26, 2006 | Jun 26, 2006 | Pogo Producing Company | Black Stone-Allen A-1 #1H | 13,500 | 37331071 |
| 621512Amendment | Jun 26, 2006 | Jun 26, 2006 | Pogo Producing Company | Black Stone-Allen A-1 #1H | 13,500 | 37331071 |
| 621438 | Jun 22, 2006 | Jun 22, 2006 | Prime Operating Company | Wing, Sarah F. #78 | 8,260 | 37330683 |
| 621137 | Jun 16, 2006 | Jun 16, 2006 | Unit Petroleum Company | BP "E" #1 | 12,200 | 37331070 |
| 620141 | May 31, 2006 | May 31, 2006 | Devon Energy Production Co, L.P. | Sutton #1 | 13,000 | 37331069 |
| 619170 | May 12, 2006 | May 12, 2006 | Unit Petroleum Company | BP Fee #2 | 12,200 | 37331068 |
| 619170Amendment | May 12, 2006 | May 12, 2006 | Unit Petroleum Company | BP Fee #2 | 12,200 | 37331068 |
| 619167 | May 12, 2006 | May 12, 2006 | Unit Petroleum Company | Gilchrease Gas Unit #4 | 13,200 | 37331067 |
| 619124 | May 12, 2006 | May 12, 2006 | Rodessa Operating Company | I. P. #1 | 12,900 | 37331020 |
| 617566 | Apr 13, 2006 | Apr 13, 2006 | Black Stone Energy Company, LLC | Black Stone Simmons A-70 #1 | 13,900 | 37331065 |
| 617566Amendment | Apr 13, 2006 | Apr 13, 2006 | Black Stone Energy Company, LLC | Black Stone Simmons A-70 #1HH | 13,900 | 37331065 |
| 616962 | Apr 4, 2006 | Apr 4, 2006 | Devon Energy Production Co, L.P. | Blackstone A-917 #1 | 12,700 | 37331064 |
| 616116 | Mar 22, 2006 | Mar 22, 2006 | Unit Petroleum Company | BP 'D' #1 | 13,300 | 37331063 |
| 615648 | Mar 13, 2006 | Mar 13, 2006 | Sundown Energy LP | Harrell, David C. #1 | 2,500 | 37331062 |
| 615648Amendment | Mar 13, 2006 | Mar 13, 2006 | Sundown Energy LP | Harrell, David C. #1 | 2,500 | 37331062 |
| 615212 | Mar 3, 2006 | Mar 3, 2006 | Sundown Energy LP | Davis, Wirt #1 | 2,500 | 37331061 |
| 614753 | Feb 23, 2006 | Feb 23, 2006 | Unit Petroleum Company | Gilchrease Gas Unit #3 | 13,300 | 37331060 |
| 614482 | Feb 21, 2006 | Feb 21, 2006 | Gulf South Pipeline Company, LP | Rectifier #5159 | 450 | 37331059 |
| 614149 | Feb 21, 2006 | Feb 21, 2006 | Famcor Oil, Inc. | Sodak "SWD" #7 | 5,550 | 37300156 |
| 614049 | Feb 21, 2006 | Feb 21, 2006 | Famcor Oil, Inc | Webb #1 | 5,200 | 37331058 |
| 614049Amendment | Feb 21, 2006 | Feb 21, 2006 | Famcor Oil, Inc | Webb #1 | 5,600 | 37331058 |
| 613253 | Jan 31, 2006 | Jan 31, 2006 | Meridian Resource & Expl Llc,the | Katherine Leary #1 | 18,000 | 37331057 |
| 613253Amendment | Jan 31, 2006 | Jan 31, 2006 | Meridian Resource & Expl Llc,the | Katherine Leary #1H | 18,000 | 37331057 |
| 613253Amendment | Jan 31, 2006 | Jan 31, 2006 | Meridian Resource & Expl Llc,the | Leary, Katherine #1H | 18,000 | 37331057 |
| 613253Amendment | Jan 31, 2006 | Jan 31, 2006 | Meridian Resource & Expl Llc,the | Leary, Katherine #1H | 19,137 | 37331057 |
| 612368 | Jan 13, 2006 | Jan 13, 2006 | Delta Exploration Company, Inc. | BP America Delta #1H | 15,000 | 37331056 |
| 612368Amendment | Jan 13, 2006 | Jan 13, 2006 | Delta Exploration Company, Inc. | BP America Delta #1H | 15,000 | 37331056 |
| 612235 | Jan 11, 2006 | Jan 11, 2006 | Samson Lone Star LP | Dick & Faling #15 | 2,900 | 37331024 |
| 611910 | Jan 5, 2006 | Jan 5, 2006 | Pogo Producing Company | Cowart-Priest, et al Unit #1 | 14,000 | 37331055 |
| 611608 | Dec 28, 2005 | Dec 28, 2005 | Walter Oil & Gas Corporation | BP America 791 #1 | 10,500 | 37331054 |
| 611117 | Dec 15, 2005 | Dec 15, 2005 | Dominion Expl. & Prod., Inc. | Depi Bsmc #5 | 15,025 | 37331053 |