| 555519 | Dec 30, 2004 | Dec 30, 2004 | Southwestern Energy Prod. Co. | Allred Gas Unit 1 #13 | 12,300 | 42331890 |
| 555519Amendment | Dec 30, 2004 | Dec 30, 2004 | Southwestern Energy Prod. Co. | Allred Gas Unit 1 #13 | 12,300 | 42331890 |
| 555517 | Dec 30, 2004 | Dec 30, 2004 | Southwestern Energy Prod. Co. | Vernon B. Wilson Gas Unit 1 #11 | 12,000 | 42331889 |
| 555516 | Dec 30, 2004 | Dec 30, 2004 | Southwestern Energy Prod. Co. | Frank M. Burke, Jr. Gas Unit 1 #13 | 12,200 | 42331888 |
| 555515 | Dec 30, 2004 | Dec 30, 2004 | Southwestern Energy Prod. Co. | Woolf Gas Unit 1 #11 | 11,900 | 42331887 |
| 555515Amendment | Dec 30, 2004 | Dec 30, 2004 | Southwestern Energy Prod. Co. | Woolf Gas Unit 1 #11 | 11,900 | 42331887 |
| 555092 | Dec 23, 2004 | Dec 23, 2004 | C. W. Resources, Inc. | Morby #8 | 12,200 | 42331884 |
| 553964 | Dec 21, 2004 | Dec 21, 2004 | Barrow-Shaver Resources Co. | Shiels Unit #1 | 10,000 | 42331872 |
| 555010 | Dec 17, 2004 | Dec 17, 2004 | J-W Operating Co. | Cowan GU #3 | 11,850 | 42331883 |
| 554879 | Dec 17, 2004 | Dec 17, 2004 | Encore Operating, L.P. | Lintner #17 | 12,000 | 42331882 |
| 554472 | Dec 7, 2004 | Dec 7, 2004 | Encore Operating, L.P. | McElroy #10 | 12,000 | 42331881 |
| 554420 | Dec 6, 2004 | Dec 6, 2004 | J-W Operating Co. | Shofner, V.L. GU 1 #3 | 13,000 | 42331880 |
| 554271 | Dec 6, 2004 | Dec 6, 2004 | Encore Operating, L.P. | McElroy #13 | 12,000 | 42331878 |
| 554265 | Dec 6, 2004 | Dec 6, 2004 | Encore Operating, L.P. | McElroy #8 | 12,000 | 42331877 |
| 554369 | Dec 3, 2004 | Dec 3, 2004 | J-W Operating Co. | Swinney #1 | 13,000 | 42331879 |
| 554030 | Nov 30, 2004 | Nov 30, 2004 | Antero Resources II, LP | Anderson Unit #1 | 12,037 | 42331875 |
| 554030Amendment | Nov 30, 2004 | Nov 30, 2004 | Antero Resources II, LP | Anderson Unit #1 | 12,037 | 42331875 |
| 554126 | Nov 29, 2004 | Nov 29, 2004 | C. W. Resources, Inc. | Stewart #1 | 12,300 | 42331876 |
| 553987 | Nov 29, 2004 | Nov 29, 2004 | Classic Energy Incorporated | Overton Gas Unit 3 #7 | 11,700 | 42331874 |
| 552285 | Nov 29, 2004 | Nov 29, 2004 | Southwestern Energy Prod. Co. | Jackson Gas Unit 1 #9 | 11,900 | 42331856 |
| 553869 | Nov 23, 2004 | Nov 23, 2004 | Encore Operating, L.P. | McElroy #5 | 12,100 | 42331871 |
| 553639 | Nov 22, 2004 | Nov 22, 2004 | C. W. Resources, Inc. | Morby #7 | 12,500 | 42331868 |
| 553917 | Nov 19, 2004 | Nov 19, 2004 | Adexco Operating Company | Cassidy #1 | 7,700 | 42331870 |
| 553647 | Nov 16, 2004 | Nov 16, 2004 | Southwestern Energy Prod. Co. | McRimmon Unit 1 #15 | 12,200 | 42331869 |
| 553510 | Nov 16, 2004 | Nov 16, 2004 | Encore Operating, L.P. | Wilson, David G #5 | 12,000 | 42331867 |
| 553003 | Nov 15, 2004 | Nov 15, 2004 | C. W. Resources, Inc. | McMoyle #4H | 12,300 | 42331866 |
| 553003Amendment | Nov 15, 2004 | Nov 15, 2004 | C. W. Resources, Inc. | McMoyle #4 | 12,300 | 42331866 |
| 553467 | Nov 10, 2004 | Nov 10, 2004 | Will-Drill Production Co., Inc. | Green Bay #7 | 12,100 | 42331734 |
| 553257 | Nov 5, 2004 | Nov 5, 2004 | Map Production Co., Inc. | Roberts #1 | 8,500 | 42301005 |
| 552949 | Nov 1, 2004 | Nov 1, 2004 | Thomas Operating Ltd. Co. | Butler, L. A. #3 | 8,700 | 42331481 |
| 552944 | Oct 28, 2004 | Oct 28, 2004 | Adexco Operating Company | Chelsea #1 | 7,700 | 42331864 |
| 552880 | Oct 27, 2004 | Oct 27, 2004 | Southwestern Energy Prod. Co. | Morby Unit 1 #6 | 12,200 | 42331863 |
| 552880Amendment | Oct 27, 2004 | Oct 27, 2004 | Southwestern Energy Prod. Co. | Morby Unit 1 #6 | 12,200 | 42331863 |
| 552629 | Oct 22, 2004 | Oct 22, 2004 | Antero Resources II, LP | Echard Heirs #13 | 11,950 | 42331862 |
| 552623 | Oct 22, 2004 | Oct 22, 2004 | Antero Resources II, LP | Green Bay #15 | 12,000 | 42331861 |
| 552572 | Oct 20, 2004 | Oct 20, 2004 | J-W Operating Co. | Littlejohn #1 | 13,000 | 42331860 |
| 552477 | Oct 19, 2004 | Oct 19, 2004 | 3-T Exploration, Inc. | Byars Unit #1 | 7,500 | 42331859 |
| 552373 | Oct 19, 2004 | Oct 19, 2004 | C. W. Resources, Inc. | Burkett #2 | 12,300 | 42331858 |
| 552203 | Oct 19, 2004 | Oct 19, 2004 | WSF, Inc. | Askew #1 | 9,000 | 42331849 |
| 552203Amendment | Oct 19, 2004 | Oct 19, 2004 | WSF, Inc. | Askew #1 | 9,000 | 42331849 |
| 552374 | Oct 18, 2004 | Oct 18, 2004 | C. W. Resources, Inc. | Mc Moyle #5 | 12,300 | 42331857 |
| 552257 | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | J. F. Ware Gas Unit 1 #10 | 12,200 | 42331851 |
| 552256 | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | Allred Gas Unit 1 #12 | 12,200 | 42331853 |
| 552255 | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | Morby Unit 1 #5 | 12,200 | 42331855 |
| 552255Amendment | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | Morby Unit 1 #5 | 12,200 | 42331855 |
| 552254 | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | Frank M. Burke, Jr. Gas Unit 1 #15 | 12,300 | 42331850 |
| 552254Amendment | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | Frank M. Burke, Jr. Gas Unit 1 #15 | 12,300 | 42331850 |
| 552253 | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | Waldrop Gas Unit 1 #4 | 12,350 | 42331854 |
| 552252 | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | Bright Gas Unit 1 #9 | 12,200 | 42331852 |
| 551283 | Oct 12, 2004 | Oct 12, 2004 | Southwestern Energy Prod. Co. | Jerry Cross Gas Unit 1 #8 | 12,300 | 42331841 |
| 551283Amendment | Oct 12, 2004 | Oct 12, 2004 | Southwestern Energy Prod. Co. | Jerry Cross Gas Unit 1 #8 | 12,300 | 42331841 |
| 550827 | Oct 8, 2004 | Oct 8, 2004 | Southwestern Energy Prod. Co. | Wright Gas Unit 1 #8 | 11,900 | 42331838 |
| 551676 | Sep 29, 2004 | Sep 29, 2004 | Ensight Energy Management, LLC | L C Ray Gas Unit NO 1 #2 | 11,800 | 42331848 |
| 551603 | Sep 29, 2004 | Sep 29, 2004 | Encore Operating, L.P. | Cameron #4 | 12,000 | 42331847 |
| 551600 | Sep 29, 2004 | Sep 29, 2004 | Encore Operating, L.P. | McElroy #4 | 12,000 | 42331845 |
| 551643 | Sep 28, 2004 | Sep 28, 2004 | J-W Operating Co. | Johnston #1 | 12,000 | 42331846 |
| 551625 | Sep 28, 2004 | Sep 28, 2004 | Southwestern Energy Prod. Co. | P M Wilson Heirs Unit 1 #6 | 11,900 | 42331844 |
| 551299 | Sep 24, 2004 | Sep 24, 2004 | Southwestern Energy Prod. Co. | Frank M. Burke, Jr. Gas Unit 1 #11 | 12,200 | 42331843 |
| 551299Amendment | Sep 24, 2004 | Sep 24, 2004 | Southwestern Energy Prod. Co. | Frank M. Burke, Jr. Gas Unit 1 #11 | 12,300 | 42331843 |
| 551332 | Sep 22, 2004 | Sep 22, 2004 | Antero Resources II, LP | Green Bay #14 | 12,000 | 42331842 |
| 551211 | Sep 20, 2004 | Sep 20, 2004 | Southwestern Energy Prod. Co. | Morby Unit 1 #4 | 12,350 | 42331840 |
| 551211Amendment | Sep 20, 2004 | Sep 20, 2004 | Southwestern Energy Prod. Co. | Morby Unit 1 #4 | 12,350 | 42331840 |
| 551045 | Sep 15, 2004 | Sep 15, 2004 | Goodrich Petroleum Company | Palauxy "B" Sand Unit #1A | 7,600 | 42331839 |
| 550817 | Sep 10, 2004 | Sep 10, 2004 | Southwestern Energy Prod. Co. | Grady Wilson Gas Unit 1 #7 | 12,300 | 42331837 |
| 550816 | Sep 10, 2004 | Sep 10, 2004 | Southwestern Energy Prod. Co. | Frank M Burke, Jr Gas Unit 1 #12 | 12,300 | 42331836 |
| 550816Amendment | Sep 10, 2004 | Sep 10, 2004 | Southwestern Energy Prod. Co. | Frank M Burke, Jr Gas Unit 1 #12 | 12,300 | 42331836 |
| 550674 | Sep 8, 2004 | Sep 8, 2004 | Southwestern Energy Prod. Co. | Jerry Cross Gas Unit 1 #11 | 12,300 | 42331835 |
| 550673 | Sep 8, 2004 | Sep 8, 2004 | Southwestern Energy Prod. Co. | Sallie M Warren Hrs. Gas Unit 1 #4 | 12,300 | 42331834 |
| 550672 | Sep 8, 2004 | Sep 8, 2004 | Southwestern Energy Prod. Co. | Frank M Burke, Jr Gas Unit 1 #4 | 12,300 | 42331833 |
| 550672Amendment | Sep 8, 2004 | Sep 8, 2004 | Southwestern Energy Prod. Co. | Frank M Burke, Jr Gas Unit 1 #4 | 12,115 | 42331833 |
| 550545 | Sep 7, 2004 | Sep 7, 2004 | Southwestern Energy Prod. Co. | Vernon B Wilson Gas Unit 1 #14 | 12,200 | 42331832 |
| 550545Amendment | Sep 7, 2004 | Sep 7, 2004 | Southwestern Energy Prod. Co. | Vernon B Wilson Gas Unit 1 #14 | 12,200 | 42331832 |
| 550543 | Sep 7, 2004 | Sep 7, 2004 | C. W. Resources, Inc. | Kleuppel Gas Unit #3 | 12,100 | 42331831 |
| 548950 | Sep 3, 2004 | Sep 3, 2004 | Southwestern Energy Prod. Co. | Jerry Cross Gas Unit 1 #9 | 12,200 | 42331813 |
| 550399 | Sep 1, 2004 | Sep 1, 2004 | Antero Resources II, LP | Green Bay Unit #9 | 12,200 | 42331830 |
| 550260 | Aug 30, 2004 | Aug 30, 2004 | J-W Operating Co. | Hairgrove, B. W. #1 | 11,630 | 42331761 |
| 550257 | Aug 30, 2004 | Aug 30, 2004 | J-W Operating Co. | Cowan Gas Unit #2 | 11,900 | 42331829 |
| 550249 | Aug 30, 2004 | Aug 30, 2004 | C. W. Resources, Inc. | Tucker "G" Gas Unit #4 | 12,400 | 42331828 |
| 550126 | Aug 27, 2004 | Aug 27, 2004 | Encore Operating, L.P. | Guthrie #2 | 12,000 | 42331826 |
| 550126Amendment | Aug 27, 2004 | Aug 27, 2004 | Encore Operating, L.P. | Guthrie #2 | 12,000 | 42331826 |
| 549990 | Aug 27, 2004 | Aug 27, 2004 | Valence Operating Company | Haralson #1 | 13,500 | 42331825 |
| 549990Amendment | Aug 27, 2004 | Aug 27, 2004 | Valence Operating Company | Haralson #1 | 12,500 | 42331825 |
| 549481 | Aug 27, 2004 | Aug 27, 2004 | Southwestern Energy Prod. Co. | Bright Gas Unit 1 #7 | 12,200 | 42331818 |
| 550167 | Aug 26, 2004 | Aug 26, 2004 | Antero Resources II, LP | Green Bay Unit #10 | 12,200 | 42331827 |
| 548631 | Aug 24, 2004 | Aug 24, 2004 | Southwestern Energy Prod. Co. | Jerry Cross Gas Unit 1 #7 | 12,200 | 42331809 |
| 549676 | Aug 20, 2004 | Aug 20, 2004 | Southwestern Energy Prod. Co. | Carrie Matlock Gas Unit 1 #15 | 12,200 | 42331824 |
| 549642 | Aug 20, 2004 | Aug 20, 2004 | Encore Operating, L.P. | Lintner #2 | 11,900 | 42331820 |
| 549658 | Aug 18, 2004 | Aug 18, 2004 | Encore Operating, L.P. | Lintner #3 | 11,900 | 42331822 |
| 549626 | Aug 18, 2004 | Aug 18, 2004 | Samson Lone Star LP | Thompson B #6 | 7,620 | 42331435 |
| 549687 | Aug 17, 2004 | Aug 17, 2004 | Southwestern Energy Prod. Co. | Frank M. Burke, Jr. Gas Unit I #16 | 12,250 | 42331823 |
| 549687Amendment | Aug 17, 2004 | Aug 17, 2004 | Southwestern Energy Prod. Co. | Frank M. Burke, Jr. Gas Unit I #16 | 12,250 | 42331823 |
| 549666 | Aug 17, 2004 | Aug 17, 2004 | C. W. Resources, Inc. | McGill "G" Gas Unit #2 | 12,400 | 42331821 |
| 549295 | Aug 13, 2004 | Aug 13, 2004 | Southwestern Energy Prod. Co. | Wright Gas Unit I #7 | 11,900 | 42331816 |
| 549300 | Aug 9, 2004 | Aug 9, 2004 | J-W Operating Co. | Maynard, A. #2 | 13,000 | 42331817 |
| 547387 | Aug 6, 2004 | Aug 6, 2004 | Ensight Energy Management, LLC | G. L. Smith Gas Unit #1 | 12,300 | 42331793 |
| 549050 | Aug 5, 2004 | Aug 5, 2004 | Antero Resources I, LP | Green Bay #12 | 12,000 | 42331815 |
| 549050Amendment | Aug 5, 2004 | Aug 5, 2004 | Antero Resources II, LP | Green Bay #12 | 12,000 | 42331815 |
| 548995 | Aug 4, 2004 | Aug 4, 2004 | Southwestern Energy Prod. Co. | Carrie Matlock Gas Unit 1 #8 | 12,200 | 42331814 |
| 548914 | Aug 2, 2004 | Aug 2, 2004 | Map Production Co., Inc. | GB Wilson GU 1 #6 | 12,300 | 42331812 |
| 548835 | Jul 28, 2004 | Jul 28, 2004 | Southwestern Energy Prod. Co. | Carrie Matlock Gas Unit 1 #11 | 12,200 | 42331811 |