| 607853 | Oct 17, 2005 | Oct 17, 2005 | Stroud Petroleum, Inc. | Thorne #2 | 10,200 | 45931285 |
| 607952 | Oct 14, 2005 | Oct 14, 2005 | El Paso Production Company | Chout 1 #3 | 12,500 | 45931286 |
| 607672 | Oct 12, 2005 | Oct 12, 2005 | Oneok Texas Energy Resources, LP | J. D. Fenton GU "A" #9 | 11,300 | 45931284 |
| 607619 | Oct 12, 2005 | Oct 12, 2005 | Valence Operating Company | Orr, J.B. #2 | 12,150 | 45931283 |
| 605918 | Oct 11, 2005 | Oct 11, 2005 | Oneok Texas Energy Resources, LP | Gladewater GU 9 #9 | 11,300 | 45931277 |
| 607058 | Sep 29, 2005 | Sep 29, 2005 | Sulphur River Exploration, Inc. | Indian Rock Gas Unit No. 6 #7 | 13,000 | 45931086 |
| 606655 | Sep 21, 2005 | Sep 21, 2005 | McBee Operating Company, L.L.C. | Barbee Gas Unit No. 1 #5 | 11,000 | 45931282 |
| 606175 | Sep 21, 2005 | Sep 21, 2005 | Oneok Texas Energy Resources, LP | T. Collins GU #4 | 11,300 | 45931280 |
| 606585 | Sep 20, 2005 | Sep 20, 2005 | Oneok Texas Energy Resources, LP | J.D. Fenton GU #5 | 11,300 | 45931281 |
| 606112 | Sep 16, 2005 | Sep 16, 2005 | Vintage Petroleum, Inc. | Wheeler Gas Unit #5 | 13,000 | 45931279 |
| 605978 | Sep 16, 2005 | Sep 16, 2005 | Sojourner Drilling Corporation | McCollum Gas Unit #6 | 12,000 | 45931278 |
| 605978Amendment | Sep 16, 2005 | Sep 16, 2005 | Sojourner Drilling Corporation | McCollum Gas Unit #6 | 12,000 | 45931278 |
| 605900 | Sep 6, 2005 | Sep 6, 2005 | Oneok Texas Energy Resources, LP | J.D. Fenton GU #10 | 11,300 | 45931276 |
| 605883 | Sep 6, 2005 | Sep 6, 2005 | Oneok Texas Energy Resources, LP | Tommie Mason GU #2 | 11,300 | 45931275 |
| 605547 | Sep 2, 2005 | Sep 2, 2005 | Matador Production Company | Janie K. #1 | 11,500 | 45931274 |
| 605229 | Aug 19, 2005 | Aug 19, 2005 | Medicine Bow Operating Company | Chout #3 #1 | 12,500 | 45931273 |
| 604898 | Aug 15, 2005 | Aug 15, 2005 | Oneok Texas Energy Resources, LP | Tommie Mason GU #3 | 11,300 | 45931272 |
| 604447 | Aug 10, 2005 | Aug 10, 2005 | Sulphur River Exploration, Inc. | Arrington-Clemens Gas Unit #2 | 12,100 | 45931270 |
| 604506 | Aug 8, 2005 | Aug 8, 2005 | Vintage Petroleum, Inc. | Johnson, James L. #4 | 13,000 | 45931271 |
| 604506Amendment | Aug 8, 2005 | Aug 8, 2005 | Vintage Petroleum, Inc. | Johnson, James L. #4 | 13,000 | 45931271 |
| 604412 | Aug 4, 2005 | Aug 4, 2005 | Apache Corporation | Wright "A" #2 | 14,000 | 45931269 |
| 604284 | Aug 2, 2005 | Aug 2, 2005 | Burk Royalty Co., Ltd. | Johnson Unit #1 | 13,000 | 45931268 |
| 604179 | Jul 29, 2005 | Jul 29, 2005 | Valence Operating Company | Orr, J. B. #1 | 12,006 | 45930478 |
| 604004 | Jul 29, 2005 | Jul 29, 2005 | Encana Oil & Gas(usa) Inc. | Roberts Unit #1 | 11,750 | 45931132 |
| 603094 | Jul 26, 2005 | Jul 26, 2005 | Apache Corporation | Johnson Gas Unit #2 | 14,000 | 45931266 |
| 603845 | Jul 25, 2005 | Jul 25, 2005 | Vintage Petroleum, Inc. | Wheeler, O.N. #3 | 11,900 | 45930871 |
| 603363 | Jul 13, 2005 | Jul 13, 2005 | Medicine Bow Operating Company | Sabine River #1 | 12,500 | 45931267 |
| 603363Amendment | Jul 13, 2005 | Jul 13, 2005 | El Paso Production Company | Sabine River #1 | 12,500 | 45931267 |
| 556380Amendment | Jul 11, 2005 | Jul 11, 2005 | Oneok Texas Energy Resources, LP | S. P. Victory GU #5 | 11,300 | 45931240 |
| 602495 | Jun 23, 2005 | Jun 23, 2005 | Oneok Texas Energy Resources, LP | Willis Gas Unit #4 | 11,000 | 45931265 |
| 602488 | Jun 23, 2005 | Jun 23, 2005 | Vintage Petroleum, Inc. | Coyle, N. L. #3 | 12,500 | 45931264 |
| 602374 | Jun 21, 2005 | Jun 21, 2005 | Oneok Texas Energy Resources, LP | Lester Gas Unit #3 | 11,100 | 45931263 |
| 601565 | Jun 6, 2005 | Jun 6, 2005 | BP America Production Company | J. W. Medlin Estate Gas Unit #6 | 11,000 | 45931262 |
| 601564 | Jun 3, 2005 | Jun 3, 2005 | Basa Resources, Inc. | Sanders, A.J. #51 | 5,000 | 45931261 |
| 601239 | Jun 1, 2005 | Jun 1, 2005 | Apache Corporation | Jones, Jack Gas Unit #9 | 14,000 | 45931260 |
| 601239Amendment | Jun 1, 2005 | Jun 1, 2005 | Apache Corporation | Jack Jones Gas Unit #9 | 14,000 | 45931260 |
| 601158 | May 26, 2005 | May 26, 2005 | Vintage Petroleum, Inc. | Wheeler, O.N. #4 | 13,000 | 45931258 |
| 601158Amendment | May 26, 2005 | May 26, 2005 | Vintage Petroleum, Inc. | Wheeler, O. N. #4 | 13,000 | 45931258 |
| 601201 | May 25, 2005 | May 25, 2005 | Medicine Bow Operating Company | Hunter, J.L. #2 | 12,500 | 45931259 |
| 601201Amendment | May 25, 2005 | May 25, 2005 | El Paso Production Company | Hunter, J. L. #2 | 12,500 | 45931259 |
| 600465 | May 12, 2005 | May 12, 2005 | BP America Production Company | O'Byrne Heirs Gas Unit "A" #6 | 11,500 | 45931257 |
| 600457 | May 11, 2005 | May 11, 2005 | Burk Royalty Co., Ltd. | T.M.T.C. #3 | 13,000 | 45931256 |
| 600206 | May 6, 2005 | May 6, 2005 | Basa Resources, Inc. | A.j.sanders #52 | 5,000 | 45931255 |
| 600147 | May 5, 2005 | May 5, 2005 | Encana Oil & Gas(usa) Inc. | Cedar Springs Gas Unit #3 #9 | 11,700 | 45931119 |
| 600105 | May 3, 2005 | May 3, 2005 | Burk Royalty Co., Ltd. | Fowler #1 | 13,000 | 45931254 |
| 600105Amendment | May 3, 2005 | May 3, 2005 | Burk Royalty Co., Ltd. | Smith, D. F. #1 | 11,247 | 45931254 |
| 559605 | Apr 26, 2005 | Apr 26, 2005 | Oneok Texas Energy Resources, LP | South Brawley GU #9 | 11,300 | 45931249 |
| 560729 | Apr 25, 2005 | Apr 25, 2005 | Oneok Texas Energy Resources, LP | Petty GU #4 | 11,300 | 45931253 |
| 560082 | Apr 8, 2005 | Apr 8, 2005 | Medicine Bow Operating Company | Martin "L" #4 | 12,100 | 45931176 |
| 559784 | Apr 8, 2005 | Apr 8, 2005 | Vintage Petroleum, Inc. | Landers Unit #7 | 13,000 | 45931251 |
| 559784Amendment | Apr 8, 2005 | Apr 8, 2005 | Vintage Petroleum, Inc. | Landers Unit #7 | 13,000 | 45931251 |
| 560050 | Apr 6, 2005 | Apr 6, 2005 | Medicine Bow Operating Company | Martin "L" #7 | 12,100 | 45931186 |
| 560049 | Apr 6, 2005 | Apr 6, 2005 | Medicine Bow Operating Company | Inman "A" #5 | 12,100 | 45931165 |
| 560048 | Apr 6, 2005 | Apr 6, 2005 | Medicine Bow Operating Company | Williams "T" #2 | 12,100 | 45931063 |
| 559929 | Apr 4, 2005 | Apr 4, 2005 | Oneok Texas Energy Resources, LP | Petty GU #3 | 11,300 | 45931252 |
| 559688 | Mar 30, 2005 | Mar 30, 2005 | Lebus Oilfield Service Co. | Simmons #1 | 4,000 | 45931250 |
| 559313 | Mar 28, 2005 | Mar 28, 2005 | Valence Operating Company | Brown "B" Unit #2 | 12,150 | 45931248 |
| 559313Amendment | Mar 28, 2005 | Mar 28, 2005 | Valence Operating Company | Brown "B" Unit #2 | 12,150 | 45931248 |
| 558983 | Mar 17, 2005 | Mar 17, 2005 | Oneok Texas Energy Resources, LP | Gladewater GU 6 #6 | 11,300 | 45931247 |
| 558951 | Mar 14, 2005 | Mar 14, 2005 | McBee Operating Company, L.L.C. | Ray Gas Unit #2 #7 | 11,500 | 45931246 |
| 558384 | Mar 3, 2005 | Mar 3, 2005 | Oneok Texas Energy Resources, LP | Rubey Estate GU #6 | 11,300 | 45931245 |
| 558384Amendment | Mar 3, 2005 | Mar 3, 2005 | Oneok Texas Energy Resources, LP | Rubey Estate GU #6 | 11,300 | 45931245 |
| 557188 | Mar 1, 2005 | Mar 1, 2005 | Nadel and Gussman, L.L.C. | Tillery, John D. #2 | 12,100 | 45931243 |
| 557599 | Feb 15, 2005 | Feb 15, 2005 | Vintage Petroleum, Inc. | Landers Unit #6 | 13,000 | 45931244 |
| 557599Amendment | Feb 15, 2005 | Feb 15, 2005 | Vintage Petroleum, Inc. | Landers Unit #6 | 13,000 | 45931244 |
| 556380 | Jan 24, 2005 | Jan 24, 2005 | Oneok Texas Energy Resources, LP | S. P. Victory GU #5 | 11,300 | 45931240 |
| 556552 | Jan 21, 2005 | Jan 21, 2005 | Apache Corporation | James Jackson Gas Unit #10 | 15,000 | 45931242 |
| 556551 | Jan 21, 2005 | Jan 21, 2005 | Apache Corporation | James Jackson Gas Unit #9 | 15,000 | 45931241 |
| 556222 | Jan 19, 2005 | Jan 19, 2005 | Encana Oil & Gas(usa) Inc. | Cedar Springs Gas Unit #6 #1 | 11,700 | 45930082 |
| 556227 | Jan 14, 2005 | Jan 14, 2005 | Vintage Petroleum, Inc. | Johnson, James L. #3 | 12,500 | 45931239 |
| 556227Amendment | Jan 14, 2005 | Jan 14, 2005 | Vintage Petroleum, Inc. | Johnson, James L. #3 | 12,500 | 45931239 |
| 555873 | Jan 7, 2005 | Jan 7, 2005 | Peak Energy Corporation | Willieford, Lewis Gas Unit 1 #3 | 12,023 | 45931164 |
| 555567 | Jan 4, 2005 | Jan 4, 2005 | Encana Oil & Gas(usa) Inc. | Hancock #1 | 12,100 | 45931237 |
| 555567Amendment | Jan 4, 2005 | Jan 4, 2005 | Encana Oil & Gas(usa) Inc. | Hancock #1 | 12,100 | 45931237 |
| 555591 | Jan 3, 2005 | Jan 3, 2005 | Medicine Bow Operating Company | South Gilmer Gas Unit #1 #2 | 12,500 | 45931238 |
| 555518 | Dec 30, 2004 | Dec 30, 2004 | Medicine Bow Operating Company | Williams "T" #4 | 12,100 | 45931147 |
| 555377 | Dec 28, 2004 | Dec 28, 2004 | Stroud Petroleum, Inc. | Koen #1 | 10,000 | 45931236 |
| 555222 | Dec 22, 2004 | Dec 22, 2004 | Burk Royalty Co., Ltd. | Jordan #1 | 11,000 | 45931235 |
| 555222Amendment | Dec 22, 2004 | Dec 22, 2004 | Burk Royalty Co., Ltd. | Jordan #1 | 11,300 | 45931235 |
| 555051 | Dec 20, 2004 | Dec 20, 2004 | Oneok Texas Energy Resources, LP | South Brawley GU #6 | 11,300 | 45931234 |
| 554674 | Dec 10, 2004 | Dec 10, 2004 | Sulphur River Exploration, Inc. | Indian Rock Gas Unit NO 12 #1 | 13,000 | 45931233 |
| 554674Amendment | Dec 10, 2004 | Dec 10, 2004 | Sulphur River Exploration, Inc. | Indian Rock Gas Unit NO 12 #1 | 13,000 | 45931233 |
| 554452 | Dec 10, 2004 | Dec 10, 2004 | Oneok Texas Energy Resources, LP | Phillips GU "E" #7 | 11,300 | 45931232 |
| 551887 | Dec 10, 2004 | Dec 10, 2004 | Sulphur River Exploration, Inc. | Indian Rock Gas Unit No. 1 #3 | 12,000 | 45930699 |
| 554620 | Dec 9, 2004 | Dec 9, 2004 | Burk Royalty Co., Ltd. | McClain, Hollie #1 R | 12,000 | 45930448 |
| 554201 | Nov 30, 2004 | Nov 30, 2004 | Medicine Bow Operating Company | Inman "A" #2 | 12,500 | 45931037 |
| 554186 | Nov 30, 2004 | Nov 30, 2004 | McBee Operating Company, L.L.C. | W. E. Ray Gas Unit #1 #6 | 11,500 | 45931231 |
| 554167 | Nov 29, 2004 | Nov 29, 2004 | Vintage Petroleum, Inc. | Craig, W.D. Gas Unit 1 #5 | 13,000 | 45931230 |
| 553979 | Nov 22, 2004 | Nov 22, 2004 | Medicine Bow Operating Company | Chout #2 | 12,500 | 45931229 |
| 553873 | Nov 19, 2004 | Nov 19, 2004 | Apache Corporation | Wright Unit #1 | 15,000 | 45931228 |
| 553084 | Nov 16, 2004 | Nov 16, 2004 | Oneok Texas Energy Resources, LP | Rubey Estate GU #9 | 11,300 | 45931227 |
| 553084Amendment | Nov 16, 2004 | Nov 16, 2004 | Oneok Texas Energy Resources, LP | Rubey Estate GU #9 | 11,300 | 45931227 |
| 552752 | Nov 3, 2004 | Nov 3, 2004 | Oneok Texas Energy Resources, LP | Gladewater GU 14 #9 | 11,300 | 45931226 |
| 552156 | Oct 26, 2004 | Oct 26, 2004 | Oneok Texas Energy Resources, LP | Gladewater GU 14 #6 | 11,300 | 45931222 |
| 552569 | Oct 20, 2004 | Oct 20, 2004 | Peak Energy Corporation | J.V. Craig Gas Unit 1 #4 | 12,100 | 45931225 |
| 552333 | Oct 15, 2004 | Oct 15, 2004 | Medicine Bow Operating Company | Williams "T" #6 | 12,500 | 45931224 |
| 552322 | Oct 15, 2004 | Oct 15, 2004 | Apache Corporation | James Jackson Gas Unit #8 | 13,000 | 45931223 |
| 552322Amendment | Oct 15, 2004 | Oct 15, 2004 | Apache Corporation | James Jackson Gas Unit #8 | 13,000 | 45931223 |
| 552196 | Oct 12, 2004 | Oct 12, 2004 | Medicine Bow Operating Company | Inman "A" #6 | 12,500 | 45931172 |
| 552195 | Oct 12, 2004 | Oct 12, 2004 | Medicine Bow Operating Company | Williams "T" #1 | 12,500 | 45930492 |