| 560588 | Apr 15, 2005 | Apr 15, 2005 | Devon Energy Production Co, L.P. | Buckner #1H | 9,000 | 25130378 |
| 560580 | Apr 15, 2005 | Apr 15, 2005 | Burnett Oil Co., Inc. | Lintner Bruce #1HH | 8,500 | 25130377 |
| 560417 | Apr 13, 2005 | Apr 13, 2005 | Devon Energy Production Co, L.P. | Harris, William #1H | 9,000 | 25130376 |
| 560417Amendment | Apr 13, 2005 | Apr 13, 2005 | Devon Energy Production Co, L.P. | Burford, Tindell #1H | 9,000 | 25130376 |
| 560417Amendment | Apr 13, 2005 | Apr 13, 2005 | Devon Energy Production Co, L.P. | Tindle, Buford #1H | 9,000 | 25130376 |
| 559071Amendment | Apr 13, 2005 | Apr 13, 2005 | EOG Resources, Inc. | Stevenson C Unit #1 HH | 8,300 | 25130360 |
| 560286 | Apr 11, 2005 | Apr 11, 2005 | Chief Oil & Gas LLC | Isbell #2 HH | 8,900 | 25130375 |
| 560051 | Apr 6, 2005 | Apr 6, 2005 | Devon Energy Production Co, L.P. | Brandenburg, Kenneth #1H | 9,000 | 25130374 |
| 560051Amendment | Apr 6, 2005 | Apr 6, 2005 | Devon Energy Production Co, L.P. | Brandenburg, Kenneth #1H | 9,000 | 25130374 |
| 560029 | Apr 6, 2005 | Apr 6, 2005 | XTO Energy Inc. | Harper Cattle "B" #3AHH | 10,000 | 25130373 |
| 560029Amendment | Apr 6, 2005 | Apr 6, 2005 | XTO Energy Inc. | Harper Cattle B #3HH | 10,000 | 25130373 |
| 559928 | Apr 6, 2005 | Apr 6, 2005 | EOG Resources, Inc. | Massey Unit #1H | 7,600 | 25130372 |
| 559849 | Apr 1, 2005 | Apr 1, 2005 | Stroud Energy, Ltd. | Carl Flores Unit #1H | 10,000 | 25130371 |
| 559841 | Apr 1, 2005 | Apr 1, 2005 | Chesapeake Operating, Inc. | Martin Unit #5H | 10,000 | 25130369 |
| 559837 | Apr 1, 2005 | Apr 1, 2005 | Chesapeake Operating, Inc. | Falvel #4H | 13,000 | 25130370 |
| 558611 | Mar 25, 2005 | Mar 25, 2005 | Chesapeake Operating, Inc. | East Godley #5H | 9,000 | 25130343 |
| 558611Amendment | Mar 25, 2005 | Mar 25, 2005 | Chesapeake Operating, Inc. | East Godley #5HH | 9,000 | 25130343 |
| 559462 | Mar 24, 2005 | Mar 24, 2005 | Republic Energy Inc. | Dear Ranch #2H | 8,000 | 25130367 |
| 559416 | Mar 23, 2005 | Mar 23, 2005 | Quicksilver Resources Inc. | John J. Miles, Jr. Gas Unit #4 | 6,300 | 25130368 |
| 559399 | Mar 23, 2005 | Mar 23, 2005 | Chesapeake Operating, Inc. | East Godley #4 HH | 11,000 | 25130366 |
| 559315 | Mar 22, 2005 | Mar 22, 2005 | Chesapeake Operating, Inc. | Bethaney #2 HH | 9,000 | 25130365 |
| 559198 | Mar 21, 2005 | Mar 21, 2005 | EOG Resources, Inc. | Stevenson B Unit #1 HH | 7,700 | 25130361 |
| 559198Amendment | Mar 21, 2005 | Mar 21, 2005 | EOG Resources, Inc. | Stevenson B Unit #1 HH | 7,700 | 25130361 |
| 559208 | Mar 18, 2005 | Mar 18, 2005 | Four Sevens Operating Co., Ltd. | Hyder #1H | 8,000 | 25130363 |
| 559181 | Mar 18, 2005 | Mar 18, 2005 | Tsar Operating Company | Mustang Creek #1H | 7,150 | 25130364 |
| 559071 | Mar 18, 2005 | Mar 18, 2005 | EOG Resources, Inc. | Stevenson C Unit #1H | 8,300 | 25130360 |
| 559069 | Mar 18, 2005 | Mar 18, 2005 | EOG Resources, Inc. | 720 JV #1H | 9,300 | 25130359 |
| 559016 | Mar 16, 2005 | Mar 16, 2005 | EOG Resources, Inc. | Rice University Unit #4HH | 7,500 | 25130358 |
| 559014 | Mar 16, 2005 | Mar 16, 2005 | EOG Resources, Inc. | Rice University Unit #3H | 7,500 | 25130357 |
| 557592 | Mar 15, 2005 | Mar 15, 2005 | Quicksilver Resources Inc. | Freeland Unit #2 HH | 6,400 | 25130330 |
| 558969 | Mar 14, 2005 | Mar 14, 2005 | Devon Energy Production Co, L.P. | Wilfong #1H | 9,000 | 25130356 |
| 558965 | Mar 14, 2005 | Mar 14, 2005 | J-W Operating Co. | Beard #1 HH | 13,000 | 25130355 |
| 558965Amendment | Mar 14, 2005 | Mar 14, 2005 | J-W Operating Co. | Beard #1 HH | 13,000 | 25130355 |
| 558938 | Mar 14, 2005 | Mar 14, 2005 | XTO Energy Inc. | Harper Cattle "A" #2HH | 10,000 | 25130354 |
| 558836 | Mar 10, 2005 | Mar 10, 2005 | Chief Oil & Gas LLC | Altaras Unit #1 HH | 8,900 | 25130353 |
| 558803 | Mar 10, 2005 | Mar 10, 2005 | Stroud Energy, Ltd. | Mary Shaw Unit #1HH | 10,000 | 25130352 |
| 558650 | Mar 10, 2005 | Mar 10, 2005 | EOG Resources, Inc. | Rice University Unit #2HH | 7,500 | 25130351 |
| 558760 | Mar 9, 2005 | Mar 9, 2005 | XTO Energy Inc. | White A #1 HH | 10,000 | 25130350 |
| 558640 | Mar 9, 2005 | Mar 9, 2005 | EOG Resources, Inc. | Rice University Unit #1 | 7,500 | 25130345 |
| 558726 | Mar 8, 2005 | Mar 8, 2005 | J-W Operating Co. | Atlas #2H | 13,000 | 25130349 |
| 558716 | Mar 8, 2005 | Mar 8, 2005 | Sundance Resources, Inc. | Carr #1 HH | 7,000 | 25130348 |
| 558715 | Mar 8, 2005 | Mar 8, 2005 | Sundance Resources, Inc. | Carr #2H | 7,000 | 25130347 |
| 558688 | Mar 8, 2005 | Mar 8, 2005 | XTO Energy Inc. | Harper B #2 HH | 10,000 | 25130346 |
| 558542 | Mar 8, 2005 | Mar 8, 2005 | Hallwood Petroleum, LLC. | Meadows #8HH | 7,100 | 25130342 |
| 558540 | Mar 8, 2005 | Mar 8, 2005 | Hallwood Petroleum, LLC. | Meadows #7H | 7,100 | 25130341 |
| 558540Amendment | Mar 8, 2005 | Mar 8, 2005 | Chesapeake Operating, Inc. | Meadows #7HH | 9,000 | 25130341 |
| 558539 | Mar 8, 2005 | Mar 8, 2005 | Hallwood Petroleum, LLC. | Meadows #4HH | 7,100 | 25130340 |
| 555066Amendment | Mar 8, 2005 | Mar 8, 2005 | Hallwood Petroleum, LLC. | Meadows #6 HH | 7,100 | 25130301 |
| 558612 | Mar 7, 2005 | Mar 7, 2005 | Chesapeake Operating, Inc. | Bethaney #4 HH | 9,000 | 25130344 |
| 558577 | Mar 4, 2005 | Mar 4, 2005 | Sullivan, Hollis R. Inc. | Masters #1 HH | 8,900 | 25130339 |
| 558455 | Mar 4, 2005 | Mar 4, 2005 | Hallwood Petroleum, LLC. | Kasal - Godfrey #1 HH | 7,100 | 25130338 |
| 558343 | Mar 1, 2005 | Mar 1, 2005 | XTO Energy Inc. | Hickman C #1H | 10,000 | 25130336 |
| 558343Amendment | Mar 1, 2005 | Mar 1, 2005 | XTO Energy Inc. | Hickman #C 1HH | 10,000 | 25130336 |
| 558277 | Feb 28, 2005 | Feb 28, 2005 | XTO Energy Inc. | Harper B #1HH | 10,000 | 25130335 |
| 558008 | Feb 22, 2005 | Feb 22, 2005 | J-W Operating Co. | G-View #1HH | 13,000 | 25130334 |
| 554074Amendment | Feb 22, 2005 | Feb 22, 2005 | EOG Resources, Inc. | Richard Crider Unit #1 HH | 7,300 | 25130290 |
| 557815 | Feb 16, 2005 | Feb 16, 2005 | Devon Energy Production Co, L.P. | Peikoff, Mike #1H | 9,000 | 25130333 |
| 557771 | Feb 15, 2005 | Feb 15, 2005 | Chief Oil & Gas LLC | Isbell #1H | 8,900 | 25130332 |
| 557646 | Feb 14, 2005 | Feb 14, 2005 | EOG Resources, Inc. | Hausenfluck #1 HH | 8,500 | 25130331 |
| 557560 | Feb 11, 2005 | Feb 11, 2005 | Chesapeake Operating, Inc. | Vivian #1 HH | 10,000 | 25130328 |
| 557557 | Feb 11, 2005 | Feb 11, 2005 | Hallwood Petroleum, LLC. | Robinson Branch #1H | 11,000 | 25130329 |
| 557557Amendment | Feb 11, 2005 | Feb 11, 2005 | Hallwood Petroleum, LLC. | Robinson Branch #1 HH | 7,100 | 25130329 |
| 557557Amendment | Feb 11, 2005 | Feb 11, 2005 | Hallwood Petroleum, LLC. | Robinson Branch #1 HH | 7,100 | 25130329 |
| 557557Amendment | Feb 11, 2005 | Feb 11, 2005 | Hallwood Petroleum, LLC. | Robinson Branch #1HH | 7,100 | 25130329 |
| 557557Amendment | Feb 11, 2005 | Feb 11, 2005 | Chesapeake Operating, Inc. | Robinson Branch #1HH | 7,100 | 25130329 |
| 557476 | Feb 9, 2005 | Feb 9, 2005 | Devon Energy Production Co, L.P. | Crabtree, Gary #1H | 9,000 | 25130327 |
| 557333 | Feb 7, 2005 | Feb 7, 2005 | Devon Energy Production Co, L.P. | Parnell #1H | 9,000 | 25130325 |
| 557333Amendment | Feb 7, 2005 | Feb 7, 2005 | Devon Energy Production Co, L.P. | Parnell #1H | 9,000 | 25130325 |
| 557323 | Feb 7, 2005 | Feb 7, 2005 | Republic Energy Inc. | Georges Creek Ranch #2 HH | 8,000 | 25130324 |
| 557268 | Feb 7, 2005 | Feb 7, 2005 | Hallwood Petroleum, LLC. | Dunlavey #2HH | 11,000 | 25130326 |
| 557268Amendment | Feb 7, 2005 | Feb 7, 2005 | Hallwood Petroleum, LLC. | Dunlavey #2H | 7,100 | 25130326 |
| 557268Amendment | Feb 7, 2005 | Feb 7, 2005 | Hallwood Petroleum, LLC. | Dunlavey #2HH | 7,300 | 25130326 |
| 557139 | Feb 2, 2005 | Feb 2, 2005 | Devon Energy Production Co, L.P. | Rawdon, Harold T. #1H | 9,000 | 25130323 |
| 557139Amendment | Feb 2, 2005 | Feb 2, 2005 | Devon Energy Production Co, L.P. | Rawdon, Harold T. #1H | 9,000 | 25130323 |
| 557015 | Feb 1, 2005 | Feb 1, 2005 | EOG Resources, Inc. | Set/Back "B" Unit #3 HH | 8,900 | 25130322 |
| 557015Amendment | Feb 1, 2005 | Feb 1, 2005 | EOG Resources, Inc. | Set/Back "D" Unit #1HH | 8,900 | 25130322 |
| 557015Amendment | Feb 1, 2005 | Feb 1, 2005 | EOG Resources, Inc. | Set/Back "D" Unit #1HH | 8,900 | 25130322 |
| 557012 | Feb 1, 2005 | Feb 1, 2005 | EOG Resources, Inc. | Set/Back "C" Unit #1HH | 8,900 | 25130321 |
| 557012Amendment | Feb 1, 2005 | Feb 1, 2005 | EOG Resources, Inc. | Set/Back "C" Unit #1HH | 8,900 | 25130321 |
| 557018 | Jan 31, 2005 | Jan 31, 2005 | North Texas Llano Operating Corp | Kelly-Rayburn #1H | 8,900 | 25130320 |
| 557018Amendment | Jan 31, 2005 | Jan 31, 2005 | Williams Prod. Gulf Coast, L.P. | Kelly-Rayburn #1HH | 8,900 | 25130320 |
| 556856 | Jan 31, 2005 | Jan 31, 2005 | Hallwood Petroleum, LLC. | South Lake #2 | 7,500 | 25130319 |
| 556850 | Jan 31, 2005 | Jan 31, 2005 | EOG Resources, Inc. | Set/Back "B" Unit #2 HH | 8,900 | 25130318 |
| 556850Amendment | Jan 31, 2005 | Jan 31, 2005 | EOG Resources, Inc. | Set/Back "B" Unit #2 HH | 8,900 | 25130318 |
| 556940 | Jan 28, 2005 | Jan 28, 2005 | Chesapeake Operating, Inc. | Childress #4 HH | 11,000 | 25130316 |
| 556940Amendment | Jan 28, 2005 | Jan 28, 2005 | Chesapeake Operating, Inc. | Childress #4 HH | 11,000 | 25130316 |
| 556846 | Jan 28, 2005 | Jan 28, 2005 | EOG Resources, Inc. | Set/Back "B" Unit #1 HH | 8,900 | 25130317 |
| 556846Amendment | Jan 28, 2005 | Jan 28, 2005 | EOG Resources, Inc. | Casstevens Unit #1 HH | 9,100 | 25130317 |
| 556550 | Jan 21, 2005 | Jan 21, 2005 | Chesapeake Operating, Inc. | Falvel, M. J. #3 HH | 15,000 | 25130315 |
| 556387 | Jan 21, 2005 | Jan 21, 2005 | Hallwood Petroleum, LLC. | Welliver #1 HH | 11,000 | 25130314 |
| 556387Amendment | Jan 21, 2005 | Jan 21, 2005 | Hallwood Petroleum, LLC. | Welliver #1 HH | 7,100 | 25130314 |
| 556387Amendment | Jan 21, 2005 | Jan 21, 2005 | Chesapeake Operating, Inc. | Welliver #1 HH | 9,000 | 25130314 |
| 556385 | Jan 21, 2005 | Jan 21, 2005 | Hallwood Petroleum, LLC. | Dunlavey #1HH | 11,000 | 25130313 |
| 556385Amendment | Jan 21, 2005 | Jan 21, 2005 | Hallwood Petroleum, LLC. | Dunlavey #1 HH | 7,100 | 25130313 |
| 556378 | Jan 21, 2005 | Jan 21, 2005 | Hallwood Petroleum, LLC. | Meadows #3 HH | 11,000 | 25130312 |
| 556378Amendment | Jan 21, 2005 | Jan 21, 2005 | Hallwood Petroleum, LLC. | Meadows #3 HH | 7,100 | 25130312 |
| 556368 | Jan 21, 2005 | Jan 21, 2005 | Joint Resources Company | Goodman #1 HH | 9,500 | 25130310 |
| 556455 | Jan 19, 2005 | Jan 19, 2005 | Devon Energy Production Co, L.P. | Sandefur "A" #1H | 9,000 | 25130311 |
| 556340 | Jan 18, 2005 | Jan 18, 2005 | Richey, Ray Management Co., Inc. | HHV Land #1 HH | 7,150 | 25130309 |
| 556325 | Jan 18, 2005 | Jan 18, 2005 | J-W Operating Co. | Atlas #1 HH | 13,000 | 25130308 |