| 610885 | Dec 14, 2005 | Dec 14, 2005 | EOG Resources, Inc. | Palmer #1HH | 7,300 | 25130685 |
| 610966 | Dec 13, 2005 | Dec 13, 2005 | Burlington Resources O & G Co LP | Georges Creek Ranch #12HH | 9,000 | 25130683 |
| 610841 | Dec 12, 2005 | Dec 12, 2005 | XTO Energy Inc. | Kasal #1HH | 11,000 | 25130680 |
| 610841Amendment | Dec 12, 2005 | Dec 12, 2005 | XTO Energy Inc. | Kasal #1HH | 11,000 | 25130680 |
| 610750 | Dec 12, 2005 | Dec 12, 2005 | EOG Resources, Inc. | Massey Unit #4HH | 7,000 | 25130682 |
| 610749 | Dec 12, 2005 | Dec 12, 2005 | EOG Resources, Inc. | Massey Unit #3HH | 7,000 | 25130681 |
| 610779 | Dec 9, 2005 | Dec 9, 2005 | Chesapeake Operating, Inc. | Tech Chemical #1HH | 9,000 | 25130679 |
| 610769 | Dec 9, 2005 | Dec 9, 2005 | Williams Prod. Gulf Coast, L.P. | Ball Heirs Joint Venture #3 #3H | 7,200 | 25130678 |
| 610758 | Dec 9, 2005 | Dec 9, 2005 | Burnett Oil Co., Inc. | Lintner #1HH | 9,000 | 25130677 |
| 610758Amendment | Dec 9, 2005 | Dec 9, 2005 | Burnett Oil Co., Inc. | Lintner West #1HH | 8,500 | 25130677 |
| 610658 | Dec 9, 2005 | Dec 9, 2005 | EOG Resources, Inc. | Railhead Unit #1HH | 7,000 | 25130676 |
| 610658Amendment | Dec 9, 2005 | Dec 9, 2005 | EOG Resources, Inc. | Railhead Unit #1HH | 7,000 | 25130676 |
| 610632 | Dec 9, 2005 | Dec 9, 2005 | EOG Resources, Inc. | Stevenson "a" Unit #1HH | 7,000 | 25130673 |
| 610531 | Dec 9, 2005 | Dec 9, 2005 | EOG Resources, Inc. | Shaw Unit #4HH | 7,000 | 25130669 |
| 610637 | Dec 8, 2005 | Dec 8, 2005 | EOG Resources, Inc. | Stevenson "a" Unit #2HH | 7,000 | 25130674 |
| 610703 | Dec 7, 2005 | Dec 7, 2005 | North Texas Llano Operating Corp | New #1H | 10,000 | 25130675 |
| 610686 | Dec 7, 2005 | Dec 7, 2005 | Devon Energy Production Co, L.P. | Hickey, Billy #1H | 9,000 | 25130672 |
| 610683 | Dec 7, 2005 | Dec 7, 2005 | Devon Energy Production Co, L.P. | Muzyka, Louis #1H | 9,000 | 25130671 |
| 610683Amendment | Dec 7, 2005 | Dec 7, 2005 | Devon Energy Production Co, L.P. | Muzyka, Louis #1H | 9,000 | 25130671 |
| 610678 | Dec 7, 2005 | Dec 7, 2005 | Chesapeake Operating, Inc. | Dorothy #1HH | 9,000 | 25130670 |
| 610506 | Dec 5, 2005 | Dec 5, 2005 | Four Sevens Operating Co., Ltd. | Panchasarp #1H | 9,000 | 25130668 |
| 610426 | Dec 5, 2005 | Dec 5, 2005 | XTO Energy Inc. | Hadley #1HH | 11,000 | 25130667 |
| 610426Amendment | Dec 5, 2005 | Dec 5, 2005 | XTO Energy Inc. | Hadley Unit #1HH | 11,000 | 25130667 |
| 610298 | Dec 5, 2005 | Dec 5, 2005 | EOG Resources, Inc. | Wilshire Unit #3HH | 7,700 | 25130664 |
| 610294 | Dec 5, 2005 | Dec 5, 2005 | EOG Resources, Inc. | Ferguson Foundation Unit #6HH | 9,000 | 25130663 |
| 610395 | Dec 2, 2005 | Dec 2, 2005 | Chesapeake Operating, Inc. | Cooper #5HH | 9,000 | 25130666 |
| 610395Amendment | Dec 2, 2005 | Dec 2, 2005 | Chesapeake Operating, Inc. | Cooper #5HH | 9,000 | 25130666 |
| 610356 | Dec 2, 2005 | Dec 2, 2005 | Devon Energy Production Co, L.P. | Camp McMullen #1H | 9,000 | 25130665 |
| 610219 | Dec 1, 2005 | Dec 1, 2005 | EOG Resources, Inc. | Ferguson Foundation Unit #5HH | 9,000 | 25130662 |
| 610191 | Dec 1, 2005 | Dec 1, 2005 | EOG Resources, Inc. | Ferguson Foundation Unit #4HH | 9,000 | 25130659 |
| 610184 | Dec 1, 2005 | Dec 1, 2005 | EOG Resources, Inc. | Ferguson Foundation Unit #3HH | 9,000 | 25130658 |
| 610184Amendment | Dec 1, 2005 | Dec 1, 2005 | EOG Resources, Inc. | Ferguson Foundation Unit #3HH | 9,000 | 25130658 |
| 610169 | Dec 1, 2005 | Dec 1, 2005 | EOG Resources, Inc. | Ferguson Foundation Unit #2HH | 9,000 | 25130657 |
| 610169Amendment | Dec 1, 2005 | Dec 1, 2005 | EOG Resources, Inc. | Ferguson Foundation Unit #2HH | 9,000 | 25130657 |
| 610229 | Nov 30, 2005 | Nov 30, 2005 | Chesapeake Operating, Inc. | Dixie Ruth #6HH | 9,000 | 25130661 |
| 610227 | Nov 30, 2005 | Nov 30, 2005 | Chesapeake Operating, Inc. | Dixie Ruth #5HH | 9,000 | 25130660 |
| 610135 | Nov 30, 2005 | Nov 30, 2005 | EOG Resources, Inc. | Campbell Unit #4HH | 9,000 | 25130656 |
| 610133 | Nov 30, 2005 | Nov 30, 2005 | EOG Resources, Inc. | Campbell Unit #3HH | 9,000 | 25130655 |
| 610146 | Nov 29, 2005 | Nov 29, 2005 | EOG Resources, Inc. | Ferguson Foundation Unit #1HH | 8,900 | 25130654 |
| 610146Amendment | Nov 29, 2005 | Nov 29, 2005 | EOG Resources, Inc. | Ferguson Foundation Unit #1HH | 12,000 | 25130654 |
| 610058 | Nov 29, 2005 | Nov 29, 2005 | EOG Resources, Inc. | Sweeney Unit #2HH | 9,000 | 25130653 |
| 610058Amendment | Nov 29, 2005 | Nov 29, 2005 | EOG Resources, Inc. | Sweeney Unit #2HH | 8,999 | 25130653 |
| 610040 | Nov 29, 2005 | Nov 29, 2005 | EOG Resources, Inc. | Teich "C" Unit #6HH | 7,000 | 25130652 |
| 610040Amendment | Nov 29, 2005 | Nov 29, 2005 | EOG Resources, Inc. | Teich "C" Unit #6HH | 10,000 | 25130652 |
| 610056 | Nov 28, 2005 | Nov 28, 2005 | XTO Energy Inc. | Jones #1HH | 11,000 | 25130650 |
| 610056Amendment | Nov 28, 2005 | Nov 28, 2005 | XTO Energy Inc. | Jones #1HH | 11,000 | 25130650 |
| 610054 | Nov 28, 2005 | Nov 28, 2005 | XTO Energy Inc. | Puff #1HH | 11,000 | 25130649 |
| 610054Amendment | Nov 28, 2005 | Nov 28, 2005 | XTO Energy Inc. | Puff #1HH | 11,000 | 25130649 |
| 609924 | Nov 28, 2005 | Nov 28, 2005 | EOG Resources, Inc. | Burkett #1HH | 7,000 | 25130651 |
| 609924Amendment | Nov 28, 2005 | Nov 28, 2005 | EOG Resources, Inc. | Burkett #1HH | 7,200 | 25130651 |
| 609994 | Nov 23, 2005 | Nov 23, 2005 | Chesapeake Operating, Inc. | Parnell Unit #5HH | 9,000 | 25130648 |
| 609916 | Nov 22, 2005 | Nov 22, 2005 | Devon Energy Production Co, L.P. | Odis McGee Gas Unit #1H | 9,000 | 25130646 |
| 609913 | Nov 22, 2005 | Nov 22, 2005 | Chesapeake Operating, Inc. | Bennett #2HH | 12,000 | 25130647 |
| 609716 | Nov 21, 2005 | Nov 21, 2005 | EOG Resources, Inc. | Lowrance B Unit #1HH | 9,000 | 25130645 |
| 609777 | Nov 18, 2005 | Nov 18, 2005 | J-W Operating Co. | Rayburn #1HH | 13,000 | 25130644 |
| 609714 | Nov 18, 2005 | Nov 18, 2005 | Chesapeake Operating, Inc. | Johns Manville #1HH | 12,000 | 25130643 |
| 609576 | Nov 18, 2005 | Nov 18, 2005 | EOG Resources, Inc. | Shaw Unit #3HH | 7,000 | 25130639 |
| 609575 | Nov 18, 2005 | Nov 18, 2005 | EOG Resources, Inc. | Shaw Unit #2HH | 7,000 | 25130638 |
| 609703 | Nov 17, 2005 | Nov 17, 2005 | Devon Energy Production Co, L.P. | Otis Robinson #1H | 9,000 | 25130642 |
| 609693 | Nov 17, 2005 | Nov 17, 2005 | Devon Energy Production Co, L.P. | Alvarado Willow Springs Rnch GU1 #1H | 9,000 | 25130641 |
| 609659 | Nov 17, 2005 | Nov 17, 2005 | Chesapeake Operating, Inc. | Neaves #1HH | 12,000 | 25130640 |
| 609632 | Nov 16, 2005 | Nov 16, 2005 | Sullivan, Hollis R. Inc. | Angus #1HH | 8,995 | 25130637 |
| 609562 | Nov 16, 2005 | Nov 16, 2005 | Arrington,david H. Oil & Gas,inc | Green Nolan Muddler #1HH | 7,400 | 25130635 |
| 609427 | Nov 16, 2005 | Nov 16, 2005 | Burlington Resources O & G Co LP | Georges Creek Ranch #11HH | 9,000 | 25130636 |
| 609524 | Nov 15, 2005 | Nov 15, 2005 | Carrizo Oil & Gas, Inc. | 4H Ranch #1HH | 7,500 | 25130633 |
| 609392 | Nov 15, 2005 | Nov 15, 2005 | EOG Resources, Inc. | Harry Unit #1HH | 7,000 | 25130634 |
| 609413 | Nov 14, 2005 | Nov 14, 2005 | Chief Oil & Gas LLC | Porterfield #1HH | 8,900 | 25130632 |
| 609298 | Nov 14, 2005 | Nov 14, 2005 | EOG Resources, Inc. | Christofferson Unit #3HH | 7,000 | 25130631 |
| 609313 | Nov 10, 2005 | Nov 10, 2005 | Devon Energy Production Co, L.P. | W. H. Wyatt #1H | 9,000 | 25130630 |
| 609312 | Nov 10, 2005 | Nov 10, 2005 | Williams Prod. Gulf Coast, L.P. | Russell #2HH | 8,100 | 25130629 |
| 609312Amendment | Nov 10, 2005 | Nov 10, 2005 | Williams Prod. Gulf Coast, L.P. | Russell #2HH | 8,100 | 25130629 |
| 609301 | Nov 10, 2005 | Nov 10, 2005 | Devon Energy Production Co, L.P. | Alvarado Willow Springs Rnch GU2 #1H | 9,000 | 25130628 |
| 609229 | Nov 9, 2005 | Nov 9, 2005 | XTO Energy Inc. | Riddle #A 1HH | 11,000 | 25130627 |
| 609208 | Nov 8, 2005 | Nov 8, 2005 | Devon Energy Production Co, L.P. | McKinney Children's Trust #1HH | 9,000 | 25130626 |
| 609174 | Nov 8, 2005 | Nov 8, 2005 | Devon Energy Production Co, L.P. | Homer Allen #1H | 9,000 | 25130625 |
| 608961 | Nov 3, 2005 | Nov 3, 2005 | Arrington,david H. Oil & Gas,inc | Green Drake Wulff #1HH | 7,400 | 25130624 |
| 608961Amendment | Nov 3, 2005 | Nov 3, 2005 | Chesapeake Operating, Inc. | Green Drake Wulff #1HH | 9,000 | 25130624 |
| 608883 | Nov 3, 2005 | Nov 3, 2005 | Chesapeake Operating, Inc. | Murray #1HH | 11,000 | 25130623 |
| 608883Amendment | Nov 3, 2005 | Nov 3, 2005 | Chesapeake Operating, Inc. | Murray #1HH | 11,000 | 25130623 |
| 608802 | Nov 2, 2005 | Nov 2, 2005 | Devon Energy Production Co, L.P. | Lee #1HH | 9,000 | 25130622 |
| 608782 | Nov 1, 2005 | Nov 1, 2005 | Sundance Resources, Inc. | Basham #1HH | 7,800 | 25130621 |
| 608782Amendment | Nov 1, 2005 | Nov 1, 2005 | Sundance Resources, Inc. | Basham #1HH | 9,000 | 25130621 |
| 608009 | Nov 1, 2005 | Nov 1, 2005 | Western Assets Management, Inc. | G-2622 "A" #1 | 8,999 | 25130605 |
| 608679 | Oct 31, 2005 | Oct 31, 2005 | XTO Energy Inc. | Harper Cattle B #5AHH | 11,000 | 25130620 |
| 608679Amendment | Oct 31, 2005 | Oct 31, 2005 | XTO Energy Inc. | Harper Cattle B #5AHH | 11,000 | 25130620 |
| 608585 | Oct 31, 2005 | Oct 31, 2005 | Burlington Resources O & G Co LP | Dear Ranch #5HH | 9,000 | 25130619 |
| 608382 | Oct 27, 2005 | Oct 27, 2005 | EOG Resources, Inc. | Godley Minerals Unit #2RHH | 7,550 | 25130615 |
| 608506 | Oct 26, 2005 | Oct 26, 2005 | J-W Operating Co. | Martin, J.L. #2HH | 13,000 | 25130618 |
| 608506Amendment | Oct 26, 2005 | Oct 26, 2005 | J-W Operating Co. | Martin, J.L. #2HH | 13,000 | 25130618 |
| 608506Amendment | Oct 26, 2005 | Oct 26, 2005 | J-W Operating Co. | Martin, J.L. #2HH | 13,000 | 25130618 |
| 608429 | Oct 26, 2005 | Oct 26, 2005 | Chesapeake Operating, Inc. | Bayless #2HH | 9,000 | 25130617 |
| 608364 | Oct 26, 2005 | Oct 26, 2005 | J-W Operating Co. | Martin, J. L. #1HH | 13,000 | 25130613 |
| 608364Amendment | Oct 26, 2005 | Oct 26, 2005 | J-W Operating Co. | Martin, J. L. #1HH | 13,000 | 25130613 |
| 608371 | Oct 24, 2005 | Oct 24, 2005 | XTO Energy Inc. | Harper Nej #1HH | 11,000 | 25130614 |
| 608192 | Oct 21, 2005 | Oct 21, 2005 | EOG Resources, Inc. | Schultz "a" Unit #2HH | 7,000 | 25130612 |
| 608190 | Oct 21, 2005 | Oct 21, 2005 | EOG Resources, Inc. | Crider #2HH | 7,000 | 25130611 |
| 608187 | Oct 21, 2005 | Oct 21, 2005 | EOG Resources, Inc. | City of Godley Unit #1HH | 7,000 | 25130610 |
| 608187Amendment | Oct 21, 2005 | Oct 21, 2005 | EOG Resources, Inc. | City of Godley Unit #1HH | 7,000 | 25130610 |
| 608218 | Oct 20, 2005 | Oct 20, 2005 | Devon Energy Production Co, L.P. | Knowles, Dorothy #1HH | 9,000 | 25130609 |
| 608218Amendment | Oct 20, 2005 | Oct 20, 2005 | Devon Energy Production Co, L.P. | Knowles, Dorothy #1HH | 9,000 | 25130609 |