| 602167Amendment | Jun 17, 2005 | Jun 17, 2005 | J-W Operating Co. | Carter Gas Unit #2 | 14,000 | 42331967 |
| 601968 | Jun 14, 2005 | Jun 14, 2005 | Southwestern Energy Prod. Co. | Milton Anderson Gas Unit 1 #12 | 12,200 | 42331966 |
| 560575 | Jun 8, 2005 | Jun 8, 2005 | Southwestern Energy Prod. Co. | Jerry Cross Gas Unit 1 #14 | 12,200 | 42331938 |
| 601541 | Jun 3, 2005 | Jun 3, 2005 | J-W Operating Co. | Williams #1 | 13,000 | 42331965 |
| 601472 | Jun 3, 2005 | Jun 3, 2005 | Valence Operating Company | Poole #2 | 12,600 | 42331964 |
| 560574 | Jun 1, 2005 | Jun 1, 2005 | Southwestern Energy Prod. Co. | Milton Anderson Gas Unit 1 #14 | 12,100 | 42331939 |
| 601254 | May 26, 2005 | May 26, 2005 | Carrizo Oil & Gas, Inc. | Chisum #1 | 9,500 | 42331963 |
| 601254Amendment | May 26, 2005 | May 26, 2005 | Carrizo Oil & Gas, Inc. | Chisum #1 | 14,000 | 42331963 |
| 601254Amendment | May 26, 2005 | May 26, 2005 | Carrizo Oil & Gas, Inc. | Chisum #1 | 17,000 | 42331963 |
| 601254Amendment | May 26, 2005 | May 26, 2005 | Carrizo Oil & Gas, Inc. | Chisum #1 | 17,000 | 42331963 |
| 600990 | May 20, 2005 | May 20, 2005 | Craton Energy Corporation | Lowe #1 | 7,000 | 42331962 |
| 600840 | May 19, 2005 | May 19, 2005 | Southwestern Energy Prod. Co. | Carrie Matlock Gas Unit 1 #14 | 12,250 | 42331960 |
| 600838 | May 19, 2005 | May 19, 2005 | Southwestern Energy Prod. Co. | Carrie Matlock Gas Unit 1 #16 | 12,400 | 42331959 |
| 600860 | May 18, 2005 | May 18, 2005 | J-W Operating Co. | Littlejohn #5 | 13,000 | 42331961 |
| 600805 | May 18, 2005 | May 18, 2005 | Palmer Petroleum Inc. | Myers #2 | 11,600 | 42331958 |
| 561133 | May 17, 2005 | May 17, 2005 | C. W. Resources, Inc. | Wilson, B.J. #1 | 12,200 | 42331952 |
| 600585 | May 13, 2005 | May 13, 2005 | Southwestern Energy Prod. Co. | Bright Gas Unit 1 #16 | 12,400 | 42331957 |
| 600539 | May 12, 2005 | May 12, 2005 | Southwestern Energy Prod. Co. | Morby Unit 1 #10 | 12,200 | 42331956 |
| 600350 | May 6, 2005 | May 6, 2005 | Southwestern Energy Prod. Co. | Vernon B. Wilson Gas Unit 1 #13 | 12,200 | 42331955 |
| 600021 | May 2, 2005 | May 2, 2005 | Encore Operating, L.P. | Swann, M.C. #6 | 12,000 | 42331954 |
| 561108 | Apr 28, 2005 | Apr 28, 2005 | Antero Resources II, LP | Echard Heirs #16 | 12,100 | 42331953 |
| 561084 | Apr 28, 2005 | Apr 28, 2005 | Encore Operating, L.P. | Lintner #6 | 12,000 | 42331951 |
| 561084Amendment | Apr 28, 2005 | Apr 28, 2005 | Encore Operating, L.P. | Lintner #6 | 12,000 | 42331951 |
| 561042 | Apr 28, 2005 | Apr 28, 2005 | Encore Operating, L.P. | Swann, M.C. #11 | 12,000 | 42331950 |
| 561043 | Apr 26, 2005 | Apr 26, 2005 | Encore Operating, L.P. | Swann, M.C. #12 | 12,000 | 42331949 |
| 561027 | Apr 25, 2005 | Apr 25, 2005 | Southwestern Energy Prod. Co. | Sallie M. Warren Hrs. Gas Unit 1 #7 | 12,500 | 42331948 |
| 560962 | Apr 22, 2005 | Apr 22, 2005 | J-W Operating Co. | Swinney #2 | 13,000 | 42331947 |
| 560942 | Apr 22, 2005 | Apr 22, 2005 | Map Production Co., Inc. | GB Wilson GU 1 #11 | 12,300 | 42331945 |
| 560938 | Apr 22, 2005 | Apr 22, 2005 | Encore Operating, L.P. | Swann, M.C. #10 | 12,000 | 42331946 |
| 560915 | Apr 22, 2005 | Apr 22, 2005 | Encore Operating, L.P. | Lintner #5 | 12,000 | 42331944 |
| 560806 | Apr 22, 2005 | Apr 22, 2005 | 3-T Exploration, Inc. | Boucher Unit #2 | 6,800 | 42331943 |
| 560665 | Apr 18, 2005 | Apr 18, 2005 | Southwestern Energy Prod. Co. | Sallie M. Warren Hrs. Gas Unit 1 #5 | 12,450 | 42331942 |
| 560664 | Apr 18, 2005 | Apr 18, 2005 | Southwestern Energy Prod. Co. | Bright Gas Unit 1 #12 | 12,300 | 42331941 |
| 560663 | Apr 18, 2005 | Apr 18, 2005 | Southwestern Energy Prod. Co. | Waldrop Gas Unit 1 #5 | 12,450 | 42331940 |
| 560504 | Apr 14, 2005 | Apr 14, 2005 | Samson Lone Star LP | Clarke Estate #1 | 8,240 | 42330671 |
| 560339 | Apr 12, 2005 | Apr 12, 2005 | Southwestern Energy Prod. Co. | Bright Gas Unit 1 #13 | 12,400 | 42331937 |
| 559854 | Apr 1, 2005 | Apr 1, 2005 | 3-T Exploration, Inc. | Jones, Nollie #2 | 7,450 | 42331936 |
| 558095 | Apr 1, 2005 | Apr 1, 2005 | Southwestern Energy Prod. Co. | Shaw Gas Unit 1 #8 | 12,200 | 42331922 |
| 559822 | Mar 31, 2005 | Mar 31, 2005 | C. W. Resources, Inc. | Viola Swinney Gas Unit #1 | 12,200 | 42331935 |
| 559822Amendment | Mar 31, 2005 | Mar 31, 2005 | C. W. Resources, Inc. | Viola Swinney Gas Unit #1 | 12,100 | 42331935 |
| 559571 | Mar 30, 2005 | Mar 30, 2005 | C. W. Resources, Inc. | McDonald #1 | 12,200 | 42331933 |
| 559571Amendment | Mar 30, 2005 | Mar 30, 2005 | C. W. Resources, Inc. | McDonald #1 | 12,100 | 42331933 |
| 559563 | Mar 30, 2005 | Mar 30, 2005 | C. W. Resources, Inc. | McGill #3 | 12,200 | 42331934 |
| 559079Amendment | Mar 29, 2005 | Mar 29, 2005 | Antero Resources I, LP | Green Bay #13 | 12,100 | 42331929 |
| 557737 | Mar 25, 2005 | Mar 25, 2005 | Southwestern Energy Prod. Co. | Shaw Gas Unit 1 #7 | 12,200 | 42331917 |
| 553996 | Mar 25, 2005 | Mar 25, 2005 | Wagner & Brown, Ltd. | Davis, Sharon #1 | 12,500 | 42331873 |
| 559488 | Mar 24, 2005 | Mar 24, 2005 | Samson Lone Star LP | Johnson, O. B. #1 D | 12,500 | 42331932 |
| 559079 | Mar 18, 2005 | Mar 18, 2005 | Antero Resources II, LP | Green Bay #13 | 12,100 | 42331929 |
| 557600 | Mar 18, 2005 | Mar 18, 2005 | Southwestern Energy Prod. Co. | Bright Gas Unit 1 #10 | 12,200 | 42331911 |
| 559169 | Mar 17, 2005 | Mar 17, 2005 | Southwestern Energy Prod. Co. | Bright Gas Unit 1 #15 | 12,200 | 42331931 |
| 559166 | Mar 17, 2005 | Mar 17, 2005 | J-W Operating Co. | Maynard, A. #3 HH | 13,000 | 42331930 |
| 559108 | Mar 16, 2005 | Mar 16, 2005 | Southwestern Energy Prod. Co. | Arnold Gas Unit 1 #9 | 12,000 | 42331927 |
| 559106 | Mar 16, 2005 | Mar 16, 2005 | Southwestern Energy Prod. Co. | McMoyle Unit 1 #6 | 12,400 | 42331928 |
| 558967 | Mar 16, 2005 | Mar 16, 2005 | Encore Operating, L.P. | Cameron #9 | 12,000 | 42331926 |
| 558467 | Mar 7, 2005 | Mar 7, 2005 | Encore Operating, L.P. | Wilson, David G #6 | 12,000 | 42331925 |
| 558000 | Mar 3, 2005 | Mar 3, 2005 | Encore Operating, L.P. | McElroy #9 | 12,000 | 42331924 |
| 558370 | Mar 1, 2005 | Mar 1, 2005 | Samson Lone Star LP | Rudman, I. #1 D | 12,500 | 42331923 |
| 554030Amendment | Feb 25, 2005 | Feb 25, 2005 | Antero Resources II, LP | Anderson Unit #1 | 12,037 | 42331875 |
| 557958 | Feb 18, 2005 | Feb 18, 2005 | J-W Operating Co. | Littlejohn #3 | 13,000 | 42331921 |
| 557776 | Feb 16, 2005 | Feb 16, 2005 | Antero Resources II, LP | NE Overton Unit #11 | 11,980 | 42331920 |
| 557776Amendment | Feb 16, 2005 | Feb 16, 2005 | Antero Resources II, LP | NE Overton Unit #11 | 11,980 | 42331920 |
| 557775 | Feb 16, 2005 | Feb 16, 2005 | Antero Resources II, LP | NE Overton Unit #10 | 11,900 | 42331919 |
| 557775Amendment | Feb 16, 2005 | Feb 16, 2005 | Antero Resources II, LP | NE Overton Unit #10 | 11,900 | 42331919 |
| 557775Amendment | Feb 16, 2005 | Feb 16, 2005 | Antero Resources II, LP | NE Overton Unit #10 | 11,900 | 42331919 |
| 557774 | Feb 16, 2005 | Feb 16, 2005 | Antero Resources II, LP | NE Overton Unit #8 | 11,900 | 42331918 |
| 557774Amendment | Feb 16, 2005 | Feb 16, 2005 | Antero Resources II, LP | NE Overton Unit #8 | 11,900 | 42331918 |
| 557774Amendment | Feb 16, 2005 | Feb 16, 2005 | Exco Resources, Inc. | NE Overton Unit #8 | 12,000 | 42331918 |
| 557642 | Feb 14, 2005 | Feb 14, 2005 | Southwestern Energy Prod. Co. | Jasper Wilson Gas Unit 1 #16 | 12,300 | 42331912 |
| 557641 | Feb 14, 2005 | Feb 14, 2005 | Southwestern Energy Prod. Co. | Bright Gas Unit 1 #11 | 12,300 | 42331913 |
| 557640 | Feb 14, 2005 | Feb 14, 2005 | Southwestern Energy Prod. Co. | J.F. Ware Gas Unit 1 #9 | 12,200 | 42331914 |
| 557639 | Feb 14, 2005 | Feb 14, 2005 | Southwestern Energy Prod. Co. | Waldrop Gas Unit 1 #6 | 12,400 | 42331915 |
| 557639Amendment | Feb 14, 2005 | Feb 14, 2005 | Southwestern Energy Prod. Co. | Waldrop Gas Unit 1 #6 | 12,400 | 42331915 |
| 557539 | Feb 10, 2005 | Feb 10, 2005 | J-W Operating Co. | Littlejohn #4 | 13,000 | 42331910 |
| 557364 | Feb 8, 2005 | Feb 8, 2005 | C. W. Resources, Inc. | Airport #1 | 12,200 | 42331909 |
| 557364Amendment | Feb 8, 2005 | Feb 8, 2005 | C. W. Resources, Inc. | Airport #1 | 12,200 | 42331909 |
| 557277 | Feb 4, 2005 | Feb 4, 2005 | Samson Lone Star LP | Gilliam, I.E. #1 D | 12,500 | 42331907 |
| 557255 | Feb 4, 2005 | Feb 4, 2005 | Encore Operating, L.P. | McElroy #7 | 12,000 | 42331908 |
| 556895 | Jan 28, 2005 | Jan 28, 2005 | J-W Operating Co. | Littlejohn #2 | 13,000 | 42331906 |
| 556052 | Jan 28, 2005 | Jan 28, 2005 | Encore Operating, L.P. | Swann, M.C. #7 | 12,000 | 42331899 |
| 556827 | Jan 27, 2005 | Jan 27, 2005 | Karper Oil & Gas Corporation | Paluxy Gas Unit #1R | 5,325 | 42330712 |
| 556827Amendment | Jan 27, 2005 | Jan 27, 2005 | Karper Oil & Gas Corporation | Paluxy Gas Unit #4 | 8,190 | 42330712 |
| 556015 | Jan 27, 2005 | Jan 27, 2005 | Encore Operating, L.P. | Swann, M.C. #5 | 12,000 | 42331896 |
| 556596 | Jan 26, 2005 | Jan 26, 2005 | Valence Operating Company | Hitts Lake Unit #203 | 10,500 | 42331905 |
| 555984 | Jan 19, 2005 | Jan 19, 2005 | Valence Operating Company | Hitts Lake Unit #1029 | 10,500 | 42331898 |
| 555984Amendment | Jan 19, 2005 | Jan 19, 2005 | Valence Operating Company | Hitts Lake Unit #1029 | 11,000 | 42331898 |
| 555223 | Jan 18, 2005 | Jan 18, 2005 | Southwestern Energy Prod. Co. | Milton Anderson Gas Unit 1 #15 | 12,000 | 42331885 |
| 555223Amendment | Jan 18, 2005 | Jan 18, 2005 | Southwestern Energy Prod. Co. | Milton Anderson Gas Unit 1 #15 | 12,200 | 42331885 |
| 556067 | Jan 14, 2005 | Jan 14, 2005 | Encore Operating, L.P. | Cameron #12 | 11,800 | 42331904 |
| 555998 | Jan 14, 2005 | Jan 14, 2005 | Encore Operating, L.P. | Wilson, David G. #7 | 12,000 | 42331894 |
| 556088 | Jan 12, 2005 | Jan 12, 2005 | Southwestern Energy Prod. Co. | Frank M. Burke Jr. Gas Unit 1 #14 | 12,350 | 42331903 |
| 556087 | Jan 12, 2005 | Jan 12, 2005 | Southwestern Energy Prod. Co. | Jasper Wilson Gas Unit 1 #15 | 12,200 | 42331902 |
| 556086 | Jan 12, 2005 | Jan 12, 2005 | Southwestern Energy Prod. Co. | Woolf Gas Unit 1 #14 | 11,900 | 42331901 |
| 556084 | Jan 12, 2005 | Jan 12, 2005 | Southwestern Energy Prod. Co. | Kickapoo Creek Gas Unit 1 #11 | 12,200 | 42331900 |
| 556012 | Jan 11, 2005 | Jan 11, 2005 | Southwestern Energy Prod. Co. | Grady Wilson Gas Unit 1 #9 | 12,400 | 42331895 |
| 556012Amendment | Jan 11, 2005 | Jan 11, 2005 | Southwestern Energy Prod. Co. | Grady Wilson Gas Unit 1 #9 | 12,600 | 42331895 |
| 552985 | Jan 11, 2005 | Jan 11, 2005 | Southwestern Energy Prod. Co. | Jackson Gas Unit 1 #8 | 11,950 | 42331865 |
| 555878 | Jan 7, 2005 | Jan 7, 2005 | Southwestern Energy Prod. Co. | McRimmon Unit 1 #16 | 12,200 | 42331893 |
| 555636 | Jan 7, 2005 | Jan 7, 2005 | Antero Resources II, LP | NE Overton Unit #9 | 11,950 | 42331892 |
| 555396 | Jan 5, 2005 | Jan 5, 2005 | C. W. Resources, Inc. | Burkett #3 | 12,200 | 42331886 |
| 555581 | Jan 3, 2005 | Jan 3, 2005 | Classic Energy Incorporated | Overton Gas Unit #8 | 11,700 | 42331891 |