| 527977 | Feb 5, 2003 | Feb 5, 2003 | XTO Energy Inc. | Carpenter Gas Unit No. 1 #3 | 13,900 | 29331493 |
| 527977Amendment | Feb 5, 2003 | Feb 5, 2003 | XTO Energy Inc. | Carpenter Gas Unit II #1 | 13,900 | 29331493 |
| 527873 | Feb 3, 2003 | Feb 3, 2003 | XTO Energy Inc. | Reed Gas Unit No. 1 #3 | 13,900 | 29331492 |
| 527873Amendment | Feb 3, 2003 | Feb 3, 2003 | XTO Energy Inc. | Reed Gas Unit No. 1 #3 | 13,900 | 29331492 |
| 527872 | Feb 3, 2003 | Feb 3, 2003 | XTO Energy Inc. | Jacoby-Harris Gas Unit No. 1 #9 | 13,700 | 29331491 |
| 527134 | Jan 15, 2003 | Jan 15, 2003 | XTO Energy Inc. | Jocoby-Harris Gas Unit No. 1 #4 | 13,370 | 29331490 |
| 526948 | Jan 9, 2003 | Jan 9, 2003 | XTO Energy Inc. | Perlitz Gas Unit No. 1 #6 | 13,300 | 29331489 |
| 526948Amendment | Jan 9, 2003 | Jan 9, 2003 | XTO Energy Inc. | Perlitz Gas Unit No. 1 #6 | 13,300 | 29331489 |
| 526698 | Dec 31, 2002 | Dec 31, 2002 | CH4 Energy, LLC | Barnett, C. G. #1 | 7,900 | 29331488 |
| 526705 | Dec 30, 2002 | Dec 30, 2002 | XTO Energy Inc. | Parker, G. B. & Sons #2 | 13,600 | 29331486 |
| 526705Amendment | Dec 30, 2002 | Dec 30, 2002 | XTO Energy Inc. | Parker, G. B. & Sons #2 | 13,600 | 29331486 |
| 526705Amendment | Dec 30, 2002 | Dec 30, 2002 | XTO Energy Inc. | Parker, G. B. & Sons #2 | 13,900 | 29331486 |
| 526639 | Dec 30, 2002 | Dec 30, 2002 | XTO Energy Inc. | Beachcomber Gas Unit No. 2 #3 | 13,700 | 29331487 |
| 526639Amendment | Dec 30, 2002 | Dec 30, 2002 | XTO Energy Inc. | Beachcomber Gas Unit No. 2 #3 | 13,700 | 29331487 |
| 526229 | Dec 12, 2002 | Dec 12, 2002 | XTO Energy Inc. | Triple H Ranch Gas Unit No. 1 #10 | 13,500 | 29331485 |
| 526229Amendment | Dec 12, 2002 | Dec 12, 2002 | XTO Energy Inc. | Triple H Ranch Gas Unit No. 1 #10 | 13,600 | 29331485 |
| 526130 | Dec 6, 2002 | Dec 6, 2002 | Spence Energy Company | Kennedy #1 | 6,000 | 29331484 |
| 525940 | Dec 4, 2002 | Dec 4, 2002 | XTO Energy Inc. | Chandler Gas Unit No. 1 #5 | 13,700 | 29331483 |
| 525940Amendment | Dec 4, 2002 | Dec 4, 2002 | XTO Energy Inc. | Chandler Gas Unit No. 1 #5 | 13,700 | 29331483 |
| 525798 | Dec 2, 2002 | Dec 2, 2002 | XTO Energy Inc. | B. W. Thompson Gas Unit No. 1 #9 | 13,500 | 29331479 |
| 525798Amendment | Dec 2, 2002 | Dec 2, 2002 | XTO Energy Inc. | B. W. Thompson Gas Unit No. 1 #9 | 13,500 | 29331479 |
| 525796 | Dec 2, 2002 | Dec 2, 2002 | XTO Energy Inc. | B. W. Thompson Gas Unit No. 1 #4 | 14,200 | 29331478 |
| 525885 | Nov 27, 2002 | Nov 27, 2002 | XTO Energy Inc. | W. O. Stone Gas Unt No. 1 #7 | 13,200 | 29331482 |
| 525885Amendment | Nov 27, 2002 | Nov 27, 2002 | XTO Energy Inc. | W. O. Stone Gas Unt No. 1 #7 | 13,200 | 29331482 |
| 525884 | Nov 27, 2002 | Nov 27, 2002 | XTO Energy Inc. | W. O. Stone Gas Unit No. 1 #8 | 13,200 | 29331481 |
| 525884Amendment | Nov 27, 2002 | Nov 27, 2002 | XTO Energy Inc. | W. O. Stone Gas Unit No. 1 #8 | 13,200 | 29331481 |
| 525917 | Nov 26, 2002 | Nov 26, 2002 | Devon Energy Operating Co., L.P. | Crider Gas Unit #1 | 9,300 | 29331105 |
| 525862 | Nov 26, 2002 | Nov 26, 2002 | XTO Energy Inc. | B.W. Thompson Gas Unit No. 1 #8 | 14,200 | 29331480 |
| 525862Amendment | Nov 26, 2002 | Nov 26, 2002 | XTO Energy Inc. | B.W. Thompson Gas Unit No. 1 #8 | 14,200 | 29331480 |
| 525797 | Nov 25, 2002 | Nov 25, 2002 | XTO Energy Inc. | Jeff Thomas Gas Unit No. 1 #5 | 13,700 | 29331477 |
| 525797Amendment | Nov 25, 2002 | Nov 25, 2002 | XTO Energy Inc. | Jeff Thomas Gas Unit No. 1 #5 | 13,700 | 29331477 |
| 525797Amendment | Nov 25, 2002 | Nov 25, 2002 | XTO Energy Inc. | Jeff Thomas Gas Unit No. 1 #5 | 13,700 | 29331477 |
| 525645 | Nov 21, 2002 | Nov 21, 2002 | XTO Energy Inc. | Beachcomber Gas Unit No. 2 #2 | 13,500 | 29331476 |
| 525645Amendment | Nov 21, 2002 | Nov 21, 2002 | XTO Energy Inc. | Beachcomber Gas Unit No. 2 #2 | 13,500 | 29331476 |
| 525645Amendment | Nov 21, 2002 | Nov 21, 2002 | XTO Energy Inc. | Beachcomber Gas Unit No. 2 #2 | 13,500 | 29331476 |
| 525644 | Nov 21, 2002 | Nov 21, 2002 | XTO Energy Inc. | Griffiths Gas Unit No. 1 #5 | 9,725 | 29331170 |
| 525611 | Nov 21, 2002 | Nov 21, 2002 | XTO Energy Inc. | W. O. Stone Gas Unit No. 1 #6 | 14,500 | 29331475 |
| 525522 | Nov 14, 2002 | Nov 14, 2002 | Acock/Anaqua Operating Co., LC | Salgado Gas Unit #1 | 5,850 | 29331474 |
| 525522Amendment | Nov 14, 2002 | Nov 14, 2002 | Acock/Anaqua Operating Co., LC | Salgado Gas Unit #1 | 6,500 | 29331474 |
| 525335 | Nov 14, 2002 | Nov 14, 2002 | O'Benco, Inc. | Bobby Reed Gas Unit #5 | 12,000 | 29331473 |
| 525266 | Nov 7, 2002 | Nov 7, 2002 | XTO Energy Inc. | Barnett Gas Unit #1 | 13,600 | 29331472 |
| 525133 | Nov 4, 2002 | Nov 4, 2002 | XTO Energy Inc. | Hudson "B" Gas Unit #4 | 13,000 | 29331470 |
| 525132 | Nov 4, 2002 | Nov 4, 2002 | XTO Energy Inc. | Gilliam "B" No. 1 Gas Unit #6 | 12,800 | 29331471 |
| 525131 | Nov 4, 2002 | Nov 4, 2002 | XTO Energy Inc. | Hudson "B" Gas Unit #5 | 12,900 | 29331469 |
| 525182 | Nov 1, 2002 | Nov 1, 2002 | Acock/Anaqua Operating Co., LC | Yepez Gas Unit #1A | 6,700 | 29331050 |
| 524135 | Oct 1, 2002 | Oct 1, 2002 | XTO Energy Inc. | Thomas, H. D. et Al #4 | 12,800 | 29331468 |
| 524135Amendment | Oct 1, 2002 | Oct 1, 2002 | XTO Energy Inc. | Thomas, H. D. et Al #4 | 12,800 | 29331468 |
| 524066 | Sep 26, 2002 | Sep 26, 2002 | XTO Energy Inc. | Triple H Ranch Gas Unit No. 1 #6A | 14,500 | 29331467 |
| 523858 | Sep 24, 2002 | Sep 24, 2002 | XTO Energy Inc. | Chandler Gas Unit No. 1 #6 | 14,800 | 29331466 |
| 523858Amendment | Sep 24, 2002 | Sep 24, 2002 | XTO Energy Inc. | Chandler Gas Unit No. 1 #6 | 14,800 | 29331466 |
| 523857 | Sep 24, 2002 | Sep 24, 2002 | XTO Energy Inc. | Triple H Ranch Gas Unit No. 1 #11 | 14,000 | 29331465 |
| 523761 | Sep 18, 2002 | Sep 18, 2002 | XTO Energy Inc. | Jeff Thomas Gas Unit No. 1 #6 | 15,000 | 29331464 |
| 523761Amendment | Sep 18, 2002 | Sep 18, 2002 | XTO Energy Inc. | Jeff Thomas Gas Unit No. 1 #6 | 15,000 | 29331464 |
| 523646 | Sep 17, 2002 | Sep 17, 2002 | Nadel & Gussman | Chambers. O. W. #3 | 8,200 | 29331463 |
| 523385 | Sep 4, 2002 | Sep 4, 2002 | Devon Energy Production Co, L.P. | Txu Mining Co. #1 | 12,500 | 29331462 |
| 523196 | Aug 28, 2002 | Aug 28, 2002 | Mustang Drilling, Ltd. | Carlson #1 | 8,300 | 29331461 |
| 522960 | Aug 20, 2002 | Aug 20, 2002 | Samson Lone Star LP | Douglas Gas Unit No. 1 #3 | 11,355 | 29331460 |
| 522405 | Aug 5, 2002 | Aug 5, 2002 | XTO Energy Inc. | W. O. Stone Gas Unit No. 1 #5 | 14,000 | 29331618 |
| 522302 | Jul 31, 2002 | Jul 31, 2002 | XTO Energy Inc. | Phillips Gas Unit 'A' #5 | 14,200 | 29331458 |
| 522229 | Jul 31, 2002 | Jul 31, 2002 | XTO Energy Inc. | Beachcomber Gas Unit No. 2 #1 | 14,700 | 29331457 |
| 521648 | Jul 29, 2002 | Jul 29, 2002 | St. Mary Land & Exploration Co. | Keris #9 | 8,350 | 29331455 |
| 521997 | Jul 25, 2002 | Jul 25, 2002 | XTO Energy Inc. | B. W. Thompson Gas Unit No. 1 #7 | 14,200 | 29331456 |
| 521997Amendment | Jul 25, 2002 | Jul 25, 2002 | XTO Energy Inc. | B. W. Thompson Gas Unit No. 1 #7 | 14,200 | 29331456 |
| 521625 | Jul 9, 2002 | Jul 9, 2002 | XTO Energy Inc. | Connell #1 | 12,308 | 29330146 |
| 521311 | Jun 26, 2002 | Jun 26, 2002 | XTO Energy Inc. | Lyons Gas Unit No. 1 #11 | 14,000 | 29331454 |
| 520800 | Jun 17, 2002 | Jun 17, 2002 | XTO Energy Inc. | Lyons Gas Unit No. 1 #16 | 14,000 | 29331453 |
| 520764 | Jun 13, 2002 | Jun 13, 2002 | XTO Energy Inc. | Lyons Gas Unit No. 1 #12 | 14,000 | 29331452 |
| 519900 | Jun 4, 2002 | Jun 4, 2002 | Nadel & Gussman | Chambers, O. W. #2 | 11,000 | 29331214 |
| 520187 | May 20, 2002 | May 20, 2002 | Spence Energy Company | Maddox #1 | 5,100 | 29331077 |
| 519931 | May 17, 2002 | May 17, 2002 | St. Mary Land & Exploration Co. | Nicholas #1 | 8,710 | 29331300 |
| 519844 | May 13, 2002 | May 13, 2002 | XTO Energy Inc. | Standley Gas Unit No. 2 #8 | 14,000 | 29331451 |
| 519765 | May 10, 2002 | May 10, 2002 | XTO Energy Inc. | Jacoby-Harris Gas Unit No. 1 #8 | 14,000 | 29331450 |
| 518650 | Mar 29, 2002 | Mar 29, 2002 | Apache Corporation | Muse, M. #2 | 11,807 | 29331202 |
| 518500 | Mar 22, 2002 | Mar 22, 2002 | Geodominion Petroleum | Tippie Ranch #1 | 7,000 | 29331449 |
| 517869 | Feb 27, 2002 | Feb 27, 2002 | XTO Energy Inc. | Triple H Ranch Gas Unit No. 1 #8 | 14,500 | 29331448 |
| 517777 | Feb 21, 2002 | Feb 21, 2002 | Spence, Ralph Oil Company, Inc. | Favors, C. C. "B" #2 | 7,700 | 29331447 |
| 517449 | Feb 8, 2002 | Feb 8, 2002 | Marathon Oil Company | Thomas, H. D. #3 | 12,750 | 29331446 |
| 517140 | Feb 1, 2002 | Feb 1, 2002 | Tahoe Exploration Inc. | Tidwell #1A | 3,500 | 29331445 |
| 516891 | Jan 30, 2002 | Jan 30, 2002 | XTO Energy Inc. | Perlitz Gas Unit No. 1 #5 | 14,500 | 29331444 |
| 517035 | Jan 25, 2002 | Jan 25, 2002 | XTO Energy Inc. | Standley Gas Unit No. 2 #4 | 14,500 | 29331443 |
| 516807 | Jan 14, 2002 | Jan 14, 2002 | Mitchell Energy Company L.P. | Hudson, J. A. et UX #1 | 10,180 | 29330101 |
| 516664 | Jan 14, 2002 | Jan 14, 2002 | XTO Energy Inc. | Triple H Ranch Gas Unit No. 1 #6 | 14,500 | 29331441 |
| 516664Amendment | Jan 14, 2002 | Jan 14, 2002 | XTO Energy Inc. | Triple H Ranch Gas Unit No. 1 #6 | 14,500 | 29331441 |
| 516664Amendment | Jan 14, 2002 | Jan 14, 2002 | XTO Energy Inc. | Triple H Ranch Gas Unit No. 1 #6 | 14,500 | 29331441 |
| 516706 | Jan 11, 2002 | Jan 11, 2002 | XTO Energy Inc. | Triple H Ranch Gas Unit No. 1 #7 | 14,500 | 29331442 |
| 515774 | Dec 6, 2001 | Dec 6, 2001 | Spence Energy Company | Maddox #1 | 6,000 | 29331439 |
| 515767 | Dec 6, 2001 | Dec 6, 2001 | Roosth Production Co. | Mesquite Development #1 | 3,900 | 29331440 |
| 515696 | Nov 29, 2001 | Nov 29, 2001 | Mitchell Energy Company L.P. | Duke, Floyd #4 | 11,800 | 29331438 |
| 515695 | Nov 29, 2001 | Nov 29, 2001 | Mitchell Energy Company L.P. | Muse-Duke #4 | 12,000 | 29331437 |
| 515503 | Nov 21, 2001 | Nov 21, 2001 | Spence Energy Company | Tidwell-Clark #1 | 3,100 | 29330415 |
| 515503Amendment | Nov 21, 2001 | Nov 21, 2001 | Spence Energy Company | Tidwell Clark #1 | 3,100 | 29330415 |
| 514884 | Nov 6, 2001 | Nov 6, 2001 | XTO Energy Inc. | Stone, W. O. #4 | 10,116 | 29331049 |
| 514879 | Nov 5, 2001 | Nov 5, 2001 | Tahoe Exploration Inc. | Tidwell #3 | 3,116 | 29330414 |
| 514800 | Oct 31, 2001 | Oct 31, 2001 | Tahoe Exploration Inc. | Tidwell #1 | 3,048 | 29330401 |
| 514183 | Oct 9, 2001 | Oct 9, 2001 | Mitchell Energy Company L.P. | Clancy, Joe A. #6 | 11,350 | 29331436 |
| 514033 | Oct 3, 2001 | Oct 3, 2001 | XTO Energy Inc. | Crider #1 | 13,200 | 29331435 |
| 514020 | Sep 28, 2001 | Sep 28, 2001 | Royalty Operating, Inc. | Mobil-Flowers #1 #1 | 10,761 | 29330019 |
| 513618 | Sep 19, 2001 | Sep 19, 2001 | XTO Energy Inc. | Lyons Gas Unit No. 1 #6 | 8,822 | 29331297 |
| 513541 | Sep 14, 2001 | Sep 14, 2001 | Texaco E & P Inc. | Georgia Cox Gas Unit #4 | 10,400 | 29331015 |
| 512510 | Aug 31, 2001 | Aug 31, 2001 | St. Mary Land & Exploration Co. | Reagan Estate #2 | 9,400 | 29331434 |