| 605961 | Sep 8, 2005 | Sep 8, 2005 | Stroud Energy, Ltd. | Robinson-Moniz Unit #1HH | 8,300 | 25130526 |
| 605954 | Sep 8, 2005 | Sep 8, 2005 | EOG Resources, Inc. | Scottie Dog #2HH | 9,200 | 25130529 |
| 605954Amendment | Sep 8, 2005 | Sep 8, 2005 | EOG Resources, Inc. | Scottie Dog #2HH | 9,200 | 25130529 |
| 605950 | Sep 8, 2005 | Sep 8, 2005 | EOG Resources, Inc. | Watkins #1HH | 8,800 | 25130528 |
| 605890 | Sep 8, 2005 | Sep 8, 2005 | XTO Energy Inc. | Kimbrough Dunlap #1HH | 11,000 | 25130524 |
| 605890Amendment | Sep 8, 2005 | Sep 8, 2005 | XTO Energy Inc. | Kimbrough Dunlap #1HH | 11,000 | 25130524 |
| 605960 | Sep 7, 2005 | Sep 7, 2005 | EOG Resources, Inc. | Geren #9HH | 7,700 | 25130525 |
| 605827 | Sep 2, 2005 | Sep 2, 2005 | Devon Energy Production Co, L.P. | McCarver, Jeff #1H | 9,000 | 25130522 |
| 605825 | Sep 2, 2005 | Sep 2, 2005 | EOG Resources, Inc. | Teich "C" Unit #3HH | 7,700 | 25130523 |
| 605720 | Sep 2, 2005 | Sep 2, 2005 | Stroud Energy, Ltd. | Turkey Creek #2HH | 8,500 | 25130519 |
| 605720Amendment | Sep 2, 2005 | Sep 2, 2005 | Range Production Company | Turkey Creek #2HH | 8,500 | 25130519 |
| 605762 | Sep 1, 2005 | Sep 1, 2005 | EOG Resources, Inc. | Teich "C" Unit #4HH | 7,700 | 25130521 |
| 605729 | Sep 1, 2005 | Sep 1, 2005 | J-W Operating Co. | Brownlee #1HH | 13,000 | 25130520 |
| 605729Amendment | Sep 1, 2005 | Sep 1, 2005 | J-W Operating Co. | Brownlee #1HH | 13,000 | 25130520 |
| 605665 | Aug 31, 2005 | Aug 31, 2005 | Adexco Operating Company | Welborn Gas Unit #1HH | 6,500 | 25130518 |
| 605601 | Aug 30, 2005 | Aug 30, 2005 | Chesapeake Operating, Inc. | Buffalo Ridge #6HH | 9,000 | 25130517 |
| 605555 | Aug 29, 2005 | Aug 29, 2005 | Chesapeake Operating, Inc. | Daphney #2HH | 13,000 | 25130516 |
| 605495 | Aug 26, 2005 | Aug 26, 2005 | EOG Resources, Inc. | Kimbrough Unit #2HH | 9,000 | 25130515 |
| 605495Amendment | Aug 26, 2005 | Aug 26, 2005 | EOG Resources, Inc. | Kimbrough Unit #2HH | 9,000 | 25130515 |
| 605485 | Aug 26, 2005 | Aug 26, 2005 | EOG Resources, Inc. | Kimbrough Unit #1HH | 9,000 | 25130514 |
| 605485Amendment | Aug 26, 2005 | Aug 26, 2005 | EOG Resources, Inc. | Kimbrough Unit #1HH | 9,000 | 25130514 |
| 605479 | Aug 25, 2005 | Aug 25, 2005 | Chesapeake Operating, Inc. | Buffalo Ridge #4HH | 10,000 | 25130513 |
| 605467 | Aug 25, 2005 | Aug 25, 2005 | North Texas Llano Operating Corp | Adams #1H | 8,900 | 25130512 |
| 605277 | Aug 22, 2005 | Aug 22, 2005 | Reichmann Petroleum Corp. | Parker-Betzel Unit #1HH | 10,000 | 25130511 |
| 605277Amendment | Aug 22, 2005 | Aug 22, 2005 | Reichmann Petroleum Corp. | Parker-Betzel Unit #1HH | 11,500 | 25130511 |
| 605234 | Aug 19, 2005 | Aug 19, 2005 | Chesapeake Operating, Inc. | Buffalo Ridge #3HH | 9,000 | 25130510 |
| 605222 | Aug 19, 2005 | Aug 19, 2005 | Winston Land & Cattle I, Ltd. | Johnson Salty SWD #1 | 7,000 | 25130509 |
| 605222Amendment | Aug 19, 2005 | Aug 19, 2005 | Winston Land & Cattle I, Ltd. | Johnson Salty SWD #1 | 10,000 | 25130509 |
| 605206 | Aug 19, 2005 | Aug 19, 2005 | EOG Resources, Inc. | Scottie Dog #1HH | 9,200 | 25130508 |
| 605191 | Aug 19, 2005 | Aug 19, 2005 | EOG Resources, Inc. | Eagle Ford "a" Unit #1HH | 9,200 | 25130507 |
| 605191Amendment | Aug 19, 2005 | Aug 19, 2005 | EOG Resources, Inc. | Eagle Ford "a" Unit #1HH | 8,900 | 25130507 |
| 605191Amendment | Aug 19, 2005 | Aug 19, 2005 | EOG Resources, Inc. | Eagle Ford "a" Unit #1HH | 8,900 | 25130507 |
| 605173 | Aug 19, 2005 | Aug 19, 2005 | Chesapeake Operating, Inc. | Martin #4HH | 9,000 | 25130506 |
| 605092 | Aug 18, 2005 | Aug 18, 2005 | EOG Resources, Inc. | Eagle Ford B Unit #3HH | 9,200 | 25130505 |
| 605063 | Aug 18, 2005 | Aug 18, 2005 | EOG Resources, Inc. | Eagle Ford "B" Unit #1HH | 9,000 | 25130504 |
| 605063Amendment | Aug 18, 2005 | Aug 18, 2005 | EOG Resources, Inc. | Eagle Ford "C" Unit #2HH | 8,800 | 25130504 |
| 605075 | Aug 17, 2005 | Aug 17, 2005 | Chesapeake Operating, Inc. | Martin #3HH | 9,000 | 25130502 |
| 605062 | Aug 17, 2005 | Aug 17, 2005 | EOG Resources, Inc. | Eagle Ford "B" Unit #2HH | 9,000 | 25130503 |
| 605062Amendment | Aug 17, 2005 | Aug 17, 2005 | EOG Resources, Inc. | Eagle Ford "B" Unit #2HH | 9,000 | 25130503 |
| 604882 | Aug 15, 2005 | Aug 15, 2005 | Devon Energy Production Co, L.P. | Matthews, Don #1H | 9,000 | 25130501 |
| 604883 | Aug 12, 2005 | Aug 12, 2005 | Burlington Resources O & G Co LP | Dear Ranch #3HH | 9,000 | 25130500 |
| 604871 | Aug 12, 2005 | Aug 12, 2005 | Devon Energy Production Co, L.P. | Halbert #1H | 9,000 | 25130499 |
| 604871Amendment | Aug 12, 2005 | Aug 12, 2005 | Devon Energy Production Co, L.P. | Halbert #1H | 9,000 | 25130499 |
| 604830 | Aug 11, 2005 | Aug 11, 2005 | Western Chief Oil & Gas Company | McCutchin #2HH | 7,500 | 25130498 |
| 604774 | Aug 10, 2005 | Aug 10, 2005 | Chief Oil & Gas LLC | Reagan Unit #1HH | 8,900 | 25130497 |
| 604751 | Aug 10, 2005 | Aug 10, 2005 | Stroud Energy, Ltd. | Turkey Creek #1HH | 8,500 | 25130496 |
| 604654 | Aug 9, 2005 | Aug 9, 2005 | Chesapeake Operating, Inc. | Cates #3HH | 9,000 | 25130495 |
| 604632 | Aug 9, 2005 | Aug 9, 2005 | Chief Oil & Gas LLC | Gist Unit #1HH | 8,900 | 25130494 |
| 604570 | Aug 8, 2005 | Aug 8, 2005 | Devon Energy Production Co, L.P. | McCarver, J. L. #1H | 9,000 | 25130493 |
| 604462 | Aug 5, 2005 | Aug 5, 2005 | EOG Resources, Inc. | Pressley Unit #1HH | 12,200 | 25130492 |
| 604411 | Aug 4, 2005 | Aug 4, 2005 | Chesapeake Operating, Inc. | Armstrong #2HH | 10,000 | 25130491 |
| 604376 | Aug 4, 2005 | Aug 4, 2005 | Chesapeake Operating, Inc. | Vivian #2HH | 9,000 | 25130488 |
| 604373 | Aug 4, 2005 | Aug 4, 2005 | Calame Oil Co. | Cresson SWD Facility #1SW | 10,000 | 25130489 |
| 604407 | Aug 3, 2005 | Aug 3, 2005 | Devon Energy Production Co, L.P. | Quattlebaum #1H | 9,000 | 25130490 |
| 604262 | Aug 3, 2005 | Aug 3, 2005 | EOG Resources, Inc. | Stevenson "B" Unit #4HH | 7,700 | 25130487 |
| 602288 | Aug 3, 2005 | Aug 3, 2005 | EOG Resources, Inc. | Christofferson Unit #2HH | 7,400 | 25130439 |
| 604323 | Aug 2, 2005 | Aug 2, 2005 | Devon Energy Production Co, L.P. | West, Ronald Lynn #1H | 9,000 | 25130486 |
| 604315 | Aug 2, 2005 | Aug 2, 2005 | Devon Energy Production Co, L.P. | Key #1H | 9,000 | 25130485 |
| 604214 | Aug 1, 2005 | Aug 1, 2005 | Encana Oil & Gas(usa) Inc. | Lore Levin #101HH | 9,000 | 25130484 |
| 604173 | Aug 1, 2005 | Aug 1, 2005 | Chief Oil & Gas LLC | Linville West Unit #1HH | 8,900 | 25130483 |
| 604079 | Jul 29, 2005 | Jul 29, 2005 | EOG Resources, Inc. | Todd Unit #1HH | 7,000 | 25130482 |
| 604092 | Jul 28, 2005 | Jul 28, 2005 | Devon Energy Production Co, L.P. | Johnson County SWD #1 | 11,200 | 25130481 |
| 604078 | Jul 28, 2005 | Jul 28, 2005 | EOG Resources, Inc. | Robert A. King Unit #1HH | 7,700 | 25130480 |
| 603956 | Jul 28, 2005 | Jul 28, 2005 | EOG Resources, Inc. | Wilshire Unit #1HH | 7,700 | 25130478 |
| 603956Amendment | Jul 28, 2005 | Jul 28, 2005 | EOG Resources, Inc. | Wilshire Unit #1HH | 7,700 | 25130478 |
| 603939 | Jul 28, 2005 | Jul 28, 2005 | EOG Resources, Inc. | Stevenson "B" Unit #3HH | 7,700 | 25130475 |
| 603923 | Jul 28, 2005 | Jul 28, 2005 | EOG Resources, Inc. | Stevenson "B" Unit #2HH | 7,700 | 25130477 |
| 604069 | Jul 27, 2005 | Jul 27, 2005 | Reichmann Petroleum Corp. | Robinson #1HH | 11,500 | 25130479 |
| 604015 | Jul 27, 2005 | Jul 27, 2005 | Chesapeake Operating, Inc. | East Godley #3HH | 12,000 | 25130476 |
| 603977 | Jul 26, 2005 | Jul 26, 2005 | Chesapeake Operating, Inc. | Joseph #2HH | 12,000 | 25130474 |
| 603962 | Jul 26, 2005 | Jul 26, 2005 | EOG Resources, Inc. | Marchbanks Unit #1HH | 7,000 | 25130473 |
| 603877 | Jul 25, 2005 | Jul 25, 2005 | EOG Resources, Inc. | Campbell Unit #1HH | 12,200 | 25130472 |
| 603876 | Jul 25, 2005 | Jul 25, 2005 | EOG Resources, Inc. | Set/Back B Unit #4HH | 8,900 | 25130471 |
| 603876Amendment | Jul 25, 2005 | Jul 25, 2005 | EOG Resources, Inc. | Casstevens Unit #4HH | 8,900 | 25130471 |
| 603705 | Jul 20, 2005 | Jul 20, 2005 | EOG Resources, Inc. | Set/Back 'a' Unit #2HH | 8,800 | 25130470 |
| 603705Amendment | Jul 20, 2005 | Jul 20, 2005 | EOG Resources, Inc. | Set/Back 'a' Unit #2HH | 8,800 | 25130470 |
| 603689 | Jul 20, 2005 | Jul 20, 2005 | Chesapeake Operating, Inc. | Joseph #1HH | 12,000 | 25130469 |
| 603596 | Jul 18, 2005 | Jul 18, 2005 | Sundance Resources, Inc. | Blanton #1HH | 7,350 | 25130466 |
| 603594 | Jul 18, 2005 | Jul 18, 2005 | Sundance Resources, Inc. | Pride #1HH | 7,400 | 25130468 |
| 603592 | Jul 18, 2005 | Jul 18, 2005 | Sundance Resources, Inc. | Blanton #2HH | 7,350 | 25130467 |
| 603539 | Jul 18, 2005 | Jul 18, 2005 | EOG Resources, Inc. | Adams Unit #1HH | 7,800 | 25130465 |
| 603539Amendment | Jul 18, 2005 | Jul 18, 2005 | EOG Resources, Inc. | Adams Unit #1HH | 7,800 | 25130465 |
| 603539Amendment | Jul 18, 2005 | Jul 18, 2005 | EOG Resources, Inc. | Adams Unit #1HH | 7,800 | 25130465 |
| 603462 | Jul 15, 2005 | Jul 15, 2005 | EOG Resources, Inc. | Massey Unit #2HH | 7,700 | 25130464 |
| 603385 | Jul 14, 2005 | Jul 14, 2005 | Williams Prod. Gulf Coast, L.P. | Paxton #1H | 7,950 | 25130463 |
| 603345 | Jul 13, 2005 | Jul 13, 2005 | Chief Oil & Gas LLC | Scott Unit #1HH | 8,900 | 25130462 |
| 603331 | Jul 12, 2005 | Jul 12, 2005 | Arrington,david H. Oil & Gas,inc | Chipshot #1HH | 7,400 | 25130461 |
| 603331Amendment | Jul 12, 2005 | Jul 12, 2005 | Chesapeake Operating, Inc. | Chipshot #1HH | 7,400 | 25130461 |
| 602710 | Jul 12, 2005 | Jul 12, 2005 | Mesa Chica Corp. | Rose #1H | 8,500 | 25130460 |
| 603166 | Jul 8, 2005 | Jul 8, 2005 | EOG Resources, Inc. | Godley Minerals Unit #2HH | 7,550 | 25130458 |
| 603166Amendment | Jul 8, 2005 | Jul 8, 2005 | EOG Resources, Inc. | Godley Minerals Unit #2RHH | 7,550 | 25130458 |
| 603150 | Jul 8, 2005 | Jul 8, 2005 | Tsar Operating Company | Mustang Creek #6HH | 6,550 | 25130456 |
| 603149 | Jul 8, 2005 | Jul 8, 2005 | Tsar Operating Company | Mustang Creek #5HH | 6,550 | 25130455 |
| 603056 | Jul 8, 2005 | Jul 8, 2005 | Chesapeake Operating, Inc. | Dixie Ruth #3HH | 10,000 | 25130457 |
| 603089 | Jul 6, 2005 | Jul 6, 2005 | XTO Energy Inc. | McCarley #C 1HH | 10,000 | 25130453 |
| 603052 | Jul 6, 2005 | Jul 6, 2005 | Chesapeake Operating, Inc. | Daphney #1HH | 12,000 | 25130452 |
| 602973 | Jul 5, 2005 | Jul 5, 2005 | Hallwood Petroleum, LLC. | Colmer #2HH | 7,100 | 25130451 |
| 602936 | Jul 5, 2005 | Jul 5, 2005 | Devon Energy Production Co, L.P. | Mahaffey, Sue #1H | 9,000 | 25130450 |
| 602934 | Jul 5, 2005 | Jul 5, 2005 | Devon Energy Production Co, L.P. | Guthrie, Thomas #1H | 9,000 | 25130449 |
| 602886 | Jul 1, 2005 | Jul 1, 2005 | XTO Energy Inc. | Wilson Hancock #C 1HH | 10,000 | 25130448 |