| 543087Amendment | Mar 17, 2004 | Mar 17, 2004 | Brown, Tom Inc. | Reliant Energy Unit #5 | 14,100 | 28931401 |
| 542987 | Mar 15, 2004 | Mar 15, 2004 | Brown, Tom Inc. | Reliant Energy Unit #4 | 13,800 | 28931400 |
| 542792 | Mar 8, 2004 | Mar 8, 2004 | XTO Energy Inc. | Gail King #6 | 15,000 | 28931399 |
| 541578 | Feb 27, 2004 | Feb 27, 2004 | Hunt Petroleum Corporation | McAshan #6 | 10,400 | 28931396 |
| 542046 | Feb 13, 2004 | Feb 13, 2004 | Lpes, Inc. | Macie #1H | 7,000 | 28931398 |
| 540376 | Feb 12, 2004 | Feb 12, 2004 | Miller Energy, Inc. | Harrington #4 | 7,000 | 28931392 |
| 541622 | Feb 4, 2004 | Feb 4, 2004 | Spicer Oil Company, Inc. | Champion Ranch #1 | 6,809 | 28931280 |
| 541580 | Feb 3, 2004 | Feb 3, 2004 | Hunt Petroleum Corporation | McAshan #7 | 10,300 | 28931397 |
| 540959 | Jan 23, 2004 | Jan 23, 2004 | Brown, Tom Inc. | Goostree #1 | 16,000 | 28931395 |
| 540599 | Jan 15, 2004 | Jan 15, 2004 | XTO Energy Inc. | King, Gail #5 | 15,500 | 28931394 |
| 540443 | Jan 9, 2004 | Jan 9, 2004 | Valence Operating Company | Grizzly #1 | 15,500 | 28931393 |
| 540090 | Dec 30, 2003 | Dec 30, 2003 | XTO Energy Inc. | Holmes "S" #4 | 15,500 | 28931391 |
| 539996 | Dec 19, 2003 | Dec 19, 2003 | Hunt Petroleum Corporation | Varibus #6 | 10,500 | 28931390 |
| 538757 | Nov 19, 2003 | Nov 19, 2003 | Anadarko Petroleum Corp. | Hodges "A" #2 | 14,500 | 28931389 |
| 538392 | Nov 7, 2003 | Nov 7, 2003 | Whiting Petroleum Corporation | Noey Gas Unit #1 | 15,500 | 28931236 |
| 538392Amendment | Nov 7, 2003 | Nov 7, 2003 | Whiting Oil and Gas Corporation | Noey Gas Unit #1 | 15,500 | 28931236 |
| 537508 | Oct 16, 2003 | Oct 16, 2003 | Miller Energy, Inc. | Harrington #3 | 7,000 | 28931388 |
| 537495 | Oct 15, 2003 | Oct 15, 2003 | Brown, Tom Inc. | Reliant Energy Unit #2 | 14,200 | 28931387 |
| 536537 | Sep 17, 2003 | Sep 17, 2003 | Anadarko Petroleum Corp. | M. G. Burleson "A" #1 | 14,000 | 28931386 |
| 536537Amendment | Sep 17, 2003 | Sep 17, 2003 | Anadarko Petroleum Corp. | M. G. Burleson "A" #1 | 15,000 | 28931386 |
| 536227 | Sep 11, 2003 | Sep 11, 2003 | Calto Operating Company, Inc. | Helmcamp #3 | 10,500 | 28931385 |
| 536196 | Sep 8, 2003 | Sep 8, 2003 | First Source Texas, Inc. | Fridkin Kaufman, Ltd. #1 | 19,000 | 28931384 |
| 536196Amendment | Sep 8, 2003 | Sep 8, 2003 | First Source Texas, Inc. | Gastar Fidkin Kaufman Ltd. #1 | 21,000 | 28931384 |
| 536196Amendment | Sep 8, 2003 | Sep 8, 2003 | First Source Texas, Inc. | Gastar Fidkin Kaufman Ltd. #1 | 21,000 | 28931384 |
| 536121 | Sep 5, 2003 | Sep 5, 2003 | Bryant - Chase Energy Corp. | Metz #1 | 6,000 | 28931383 |
| 536068 | Sep 4, 2003 | Sep 4, 2003 | Wortham Realty | Harrison-Hornsby #1 | 7,500 | 28900411 |
| 535445 | Aug 26, 2003 | Aug 26, 2003 | Miller Energy, Inc. | Harrington #2 | 7,000 | 28931382 |
| 534575 | Aug 19, 2003 | Aug 19, 2003 | El Paso Production Company | McAshan #3 | 14,900 | 28931000 |
| 534575Amendment | Aug 19, 2003 | Aug 19, 2003 | Finley Resources, Inc. | McAshan #3 | 14,600 | 28931000 |
| 534513 | Aug 18, 2003 | Aug 18, 2003 | El Paso Production Company | Hunter Gas Unit #6 | 15,000 | 28931229 |
| 534840 | Jul 31, 2003 | Jul 31, 2003 | Valence Operating Company | Lewis "B" #3 | 15,500 | 28931380 |
| 534839 | Jul 31, 2003 | Jul 31, 2003 | Valence Operating Company | Lewis "B" #5 | 15,500 | 28931381 |
| 533885 | Jul 11, 2003 | Jul 11, 2003 | XTO Energy Inc. | Jimmy Beddingfield Gas Unit NO.1 #2 | 15,200 | 28931379 |
| 533759 | Jul 9, 2003 | Jul 9, 2003 | Matador Operating Company | Reliant Energy Unit #3 | 15,400 | 28931377 |
| 533782 | Jul 8, 2003 | Jul 8, 2003 | Valence Operating Company | Lewis "B" #4 | 15,500 | 28931378 |
| 532263 | May 23, 2003 | May 23, 2003 | Roberts & Hammack, Inc. | Allbritton, E. R. #3 | 5,900 | 28931376 |
| 531457 | May 6, 2003 | May 6, 2003 | Machin & Associates, Inc. | Peters #2 | 8,500 | 28931374 |
| 530957 | Apr 30, 2003 | Apr 30, 2003 | Calto Operating Company, Inc. | Guinn Gas Unit #2 | 10,516 | 28931295 |
| 530947 | Apr 28, 2003 | Apr 28, 2003 | Miller Energy, Inc. | Harrington #1 | 6,900 | 28931372 |
| 529336 | Apr 23, 2003 | Apr 23, 2003 | Carr Resources, Inc. | T-Bar-X Bedsole #1 | 16,270 | 28931283 |
| 529336Amendment | Apr 23, 2003 | Apr 23, 2003 | Carr Resources, Inc. | T-Bar-X Bedsole #1 | 16,270 | 28931283 |
| 530980 | Apr 21, 2003 | Apr 21, 2003 | Wildco Resources, Inc. | Walker Gas Unit 1 #3 | 11,000 | 28931373 |
| 528181 | Feb 10, 2003 | Feb 10, 2003 | Carr Resources, Inc. | Tick, D. #1HH | 8,800 | 28931364 |
| 527741 | Jan 27, 2003 | Jan 27, 2003 | Bryant - Chase Energy Corp. | Haley Heirs #1 | 6,000 | 28931371 |
| 527140 | Jan 9, 2003 | Jan 9, 2003 | First Source Texas, Inc. | Belin Trust "A" #1 | 21,000 | 28931359 |
| 526646 | Dec 30, 2002 | Dec 30, 2002 | C. W. Resources, Inc. | Corby Unit #3 | 9,000 | 28931370 |
| 526517 | Dec 18, 2002 | Dec 18, 2002 | Union Operating Company | Hill, Jimmy #1 | 9,600 | 28931231 |
| 525851 | Nov 26, 2002 | Nov 26, 2002 | Pioneer Natural Res. USA, Inc. | Cook, Louise #A 2 | 10,500 | 28931369 |
| 525850 | Nov 26, 2002 | Nov 26, 2002 | Pioneer Natural Res. USA, Inc. | Cook, Louise #A 3 | 10,500 | 28931368 |
| 524546 | Oct 14, 2002 | Oct 14, 2002 | Whiting Petroleum Corporation | Vann Unit #3H | 15,425 | 28931247 |
| 524546Amendment | Oct 14, 2002 | Oct 14, 2002 | Whiting Oil and Gas Corporation | Vann Unit #3 | 15,425 | 28931247 |
| 523133 | Sep 25, 2002 | Sep 25, 2002 | Matador Operating Company | Reliant Energy Unit #1 | 15,500 | 28931366 |
| 523133Amendment | Sep 25, 2002 | Sep 25, 2002 | Matador Operating Company | Reliant Energy Unit #1 | 15,500 | 28931366 |
| 523287 | Aug 30, 2002 | Aug 30, 2002 | Carr Resources, Inc. | Williams #1 | 9,000 | 28931367 |
| 522984 | Aug 21, 2002 | Aug 21, 2002 | Prime Operating Company | Davis Heirs #1 | 7,500 | 28931365 |
| 522984Amendment | Aug 21, 2002 | Aug 21, 2002 | Prime Operating Company | Davis Heirs #1 | 7,500 | 28931365 |
| 522662 | Aug 9, 2002 | Aug 9, 2002 | Carr Resources, Inc. | Tick, D. #1 | 8,800 | 28931364 |
| 521730 | Jul 11, 2002 | Jul 11, 2002 | C. W. Resources, Inc. | Sanders #1 | 9,800 | 28931363 |
| 521730Amendment | Jul 11, 2002 | Jul 11, 2002 | C. W. Resources, Inc. | Sanders #1H | 9,800 | 28931363 |
| 520606 | Jun 3, 2002 | Jun 3, 2002 | Anadarko Petroleum Corp. | Morris Lazy K #1 | 17,952 | 28931254 |
| 517493 | Feb 25, 2002 | Feb 25, 2002 | Bell & Kinley Company | Pettey-Kahla #1 | 12,406 | 28931297 |
| 517005 | Jan 22, 2002 | Jan 22, 2002 | Hilcorp Energy Company | Herrin-Searcy #6 | 9,597 | 28930910 |
| 515669 | Nov 28, 2001 | Nov 28, 2001 | Pioneer Natural Res. USA, Inc. | Watson #2 | 13,900 | 28931239 |
| 515668 | Nov 28, 2001 | Nov 28, 2001 | Pioneer Natural Res. USA, Inc. | Watson #3 | 14,500 | 28931345 |
| 515667 | Nov 28, 2001 | Nov 28, 2001 | Pioneer Natural Res. USA, Inc. | H. L. & P. Unit #1 | 13,900 | 28931258 |
| 515069 | Nov 9, 2001 | Nov 9, 2001 | Pioneer Natural Res. USA, Inc. | Harrington #1 | 17,650 | 28931286 |
| 514730 | Oct 24, 2001 | Oct 24, 2001 | EOG Resources, Inc. | Johnson 'AB' Gas Unit #2 | 10,500 | 28931327 |
| 514555 | Oct 18, 2001 | Oct 18, 2001 | Palmer Petroleum Inc. | Haley Estate #2 | 6,500 | 28931362 |
| 514087 | Oct 2, 2001 | Oct 2, 2001 | Pioneer Natural Res. USA, Inc. | Watson, Elmore #2 | 10,500 | 28931361 |
| 513352 | Sep 5, 2001 | Sep 5, 2001 | B.W.O.C., Inc. | Welch-Lacey #1 | 7,800 | 28931360 |
| 513352Amendment | Sep 5, 2001 | Sep 5, 2001 | B.W.O.C., Inc. | Welch-Lacey #1 | 7,959 | 28931360 |
| 512117 | Aug 1, 2001 | Aug 1, 2001 | Anadarko Petroleum Corp. | Belin Trust "A" #1 | 20,500 | 28931359 |
| 512117Amendment | Aug 1, 2001 | Aug 1, 2001 | Anadarko Petroleum Corp. | Belin Trust "A" #1 | 25,000 | 28931359 |
| 511920 | Jul 27, 2001 | Jul 27, 2001 | Pioneer Natural Res. USA, Inc. | Cook, Louise #2 | 14,500 | 28931358 |
| 511920Amendment | Jul 27, 2001 | Jul 27, 2001 | Pioneer Natural Res. USA, Inc. | Cook, Louise #2 | 14,500 | 28931358 |
| 511588 | Jul 19, 2001 | Jul 19, 2001 | Odegard Energy, Inc. | Fortson #3 | 6,300 | 28931357 |
| 511585 | Jul 18, 2001 | Jul 18, 2001 | Anadarko Petroleum Corp. | Frank Bell Unit #1 | 17,500 | 28930432 |
| 511132 | Jul 6, 2001 | Jul 6, 2001 | Pioneer Natural Res. USA, Inc. | Cook, Louise #1 | 9,530 | 28931090 |
| 510673 | Jun 25, 2001 | Jun 25, 2001 | Barrow-Shaver Resources Co. | Beeler, John #1 | 6,900 | 28931356 |
| 510250 | Jun 13, 2001 | Jun 13, 2001 | Century Offshore Company | Century-Johnson #1 | 17,000 | 28931355 |
| 509725 | Jun 4, 2001 | Jun 4, 2001 | Pioneer Natural Res. USA, Inc. | Haynie Unit #1 | 15,300 | 28931354 |
| 509677 | May 31, 2001 | May 31, 2001 | Pioneer Natural Res. USA, Inc. | H. L. & P. Unit #1 | 13,900 | 28931258 |
| 509677Amendment | May 31, 2001 | May 31, 2001 | Pioneer Natural Res. USA, Inc. | H. L. & P. Unit #1 | 13,900 | 28931258 |
| 509602 | May 30, 2001 | May 30, 2001 | Mitchell Energy Company L.P. | Afwdu #1502 | 8,800 | 28931353 |
| 509176 | May 21, 2001 | May 21, 2001 | Pioneer Natural Res. USA, Inc. | Watson #5 | 14,200 | 28931352 |
| 509176Amendment | May 21, 2001 | May 21, 2001 | Pioneer Natural Res. USA, Inc. | Elmore Watson Estate Unit #3 | 10,500 | 28931352 |
| 509024 | May 15, 2001 | May 15, 2001 | Anadarko Petroleum Corp. | Rainbolt Ranch "A" #1 | 20,500 | 28931351 |
| 509024Amendment | May 15, 2001 | May 15, 2001 | Anadarko Petroleum Corp. | Rainbolt Ranch "A" #1 | 20,500 | 28931351 |
| 508114 | May 8, 2001 | May 8, 2001 | American Energy Partners, Inc. | LTX #1 | 14,500 | 28931349 |
| 508114Amendment | May 8, 2001 | May 8, 2001 | American Energy Partners, Inc. | LTX #1 | 14,500 | 28931349 |
| 508113 | May 8, 2001 | May 8, 2001 | American Energy Partners, Inc. | LTX #2 | 14,500 | 28931348 |
| 508113Amendment | May 8, 2001 | May 8, 2001 | American Energy Partners, Inc. | LTX #2 | 15,000 | 28931348 |
| 508113Amendment | May 8, 2001 | May 8, 2001 | American Energy Partners, Inc. | LTX #2 | 15,000 | 28931348 |
| 508434 | May 2, 2001 | May 2, 2001 | Williams, Clayton Energy, Inc. | M. P. Walker et al Unit #2 | 14,400 | 28931350 |
| 507814 | Apr 26, 2001 | Apr 26, 2001 | Calto Operating Company, Inc. | J. R. Montgomery Gas Unit #1 | 10,610 | 28930400 |
| 508011 | Apr 20, 2001 | Apr 20, 2001 | Mitchell Energy Company L.P. | Michel, Vincent #1 | 8,600 | 28931347 |
| 507092 | Mar 27, 2001 | Mar 27, 2001 | Odegard Energy, Inc. | Fortson #2 | 6,400 | 28931346 |
| 507092Amendment | Mar 27, 2001 | Mar 27, 2001 | Odegard Energy, Inc. | Fortson #2 | 6,400 | 28931346 |
| 506644 | Mar 20, 2001 | Mar 20, 2001 | Pioneer Natural Res. USA, Inc. | Watson #3 | 14,500 | 28931345 |
| 506464 | Mar 14, 2001 | Mar 14, 2001 | Williams, Clayton Energy, Inc. | Grayson, Darwin B. et al Unit #1 | 14,400 | 28931344 |