| 610572 | Dec 9, 2005 | Dec 9, 2005 | Encore Operating, L.P. | Wilson, David G. #14 | 12,000 | 42332051 |
| 610571 | Dec 9, 2005 | Dec 9, 2005 | Encore Operating, L.P. | Wilson, David G. #10 | 12,000 | 42332052 |
| 610516 | Dec 5, 2005 | Dec 5, 2005 | Chesapeake Operating, Inc. | Overton Gas Unit #20 #5 | 12,500 | 42332050 |
| 610514 | Dec 5, 2005 | Dec 5, 2005 | Chesapeake Operating, Inc. | Overton Gas Unit #20 #4 | 12,500 | 42332049 |
| 610513 | Dec 5, 2005 | Dec 5, 2005 | Chesapeake Operating, Inc. | Overton Gas Unit #20 #3 | 12,500 | 42332047 |
| 609914 | Dec 2, 2005 | Dec 2, 2005 | Griffin Operating, Inc. | Davenport, D. L. et Al #1 | 7,900 | 42332044 |
| 610255 | Nov 30, 2005 | Nov 30, 2005 | J-W Operating Co. | Wilson, Maxie #1 | 13,000 | 42332045 |
| 608230 | Nov 28, 2005 | Nov 28, 2005 | Southwestern Energy Prod. Co. | Arnold Gas Unit 2 #9 | 12,000 | 42332028 |
| 609613 | Nov 17, 2005 | Nov 17, 2005 | Southwestern Energy Prod. Co. | Kickapoo Creek Gas Unit 1 #12 | 12,100 | 42332041 |
| 609613Amendment | Nov 17, 2005 | Nov 17, 2005 | Southwestern Energy Prod. Co. | Kickapoo Creek Gas Unit 1 #12 | 12,100 | 42332041 |
| 609616 | Nov 16, 2005 | Nov 16, 2005 | Southwestern Energy Prod. Co. | Vernon B. Wilson Gas Unit 1 #12 | 12,050 | 42332042 |
| 609616Amendment | Nov 16, 2005 | Nov 16, 2005 | Southwestern Energy Prod. Co. | Vernon B. Wilson Gas Unit 1 #12 | 12,050 | 42332042 |
| 609603 | Nov 16, 2005 | Nov 16, 2005 | Southwestern Energy Prod. Co. | Jesse Randolph Odom Gas Unit 1 #4 | 12,500 | 42332040 |
| 609158 | Nov 9, 2005 | Nov 9, 2005 | Encore Operating, L.P. | Harmon #8 | 11,800 | 42332038 |
| 609144 | Nov 8, 2005 | Nov 8, 2005 | Encore Operating, L.P. | Wilson, David G. 2 #1 | 11,800 | 42332037 |
| 608928 | Nov 3, 2005 | Nov 3, 2005 | Southwestern Energy Prod. Co. | Milton Anderson Gas Unit 1 #16 | 12,000 | 42332036 |
| 608927 | Nov 3, 2005 | Nov 3, 2005 | Southwestern Energy Prod. Co. | Waldrop Gas Unit 1 #10 | 12,200 | 42332035 |
| 608926 | Nov 3, 2005 | Nov 3, 2005 | Southwestern Energy Prod. Co. | Grady Wilson Gas Unit 1 #16 | 12,250 | 42332034 |
| 608925 | Nov 3, 2005 | Nov 3, 2005 | Southwestern Energy Prod. Co. | Arnold Gas Unit 1 #15 | 11,900 | 42332033 |
| 608898 | Nov 3, 2005 | Nov 3, 2005 | Schlachter Operating Corporation | Rayford, H. #1 | 8,617 | 42330637 |
| 608809 | Nov 1, 2005 | Nov 1, 2005 | Chesapeake Operating, Inc. | Overton Gas Unit #16 #4 | 13,000 | 42332032 |
| 608808 | Nov 1, 2005 | Nov 1, 2005 | Chesapeake Operating, Inc. | Overton Gas Unit #16 #3 | 13,000 | 42332031 |
| 608807 | Nov 1, 2005 | Nov 1, 2005 | Chesapeake Operating, Inc. | Overton Gas Unit #16 #2 | 13,000 | 42332030 |
| 608377 | Oct 24, 2005 | Oct 24, 2005 | Valence Operating Company | Hitts Lake Unit #1029 | 10,457 | 42331898 |
| 608329 | Oct 24, 2005 | Oct 24, 2005 | Southwestern Energy Prod. Co. | Morby Unit 1 #13 | 12,400 | 42332029 |
| 608231 | Oct 21, 2005 | Oct 21, 2005 | Southwestern Energy Prod. Co. | J. F. Ware Gas Unit 1 #16 | 12,200 | 42332027 |
| 608229 | Oct 21, 2005 | Oct 21, 2005 | Southwestern Energy Prod. Co. | Waldrop Gas Unit 1 #9 | 12,300 | 42332026 |
| 608222 | Oct 21, 2005 | Oct 21, 2005 | Southwestern Energy Prod. Co. | Grady Wilson Gas Unit 1 #13 | 12,400 | 42332025 |
| 607970 | Oct 17, 2005 | Oct 17, 2005 | 3-T Exploration, Inc. | Edwards Unit #4 | 6,600 | 42332024 |
| 607840 | Oct 14, 2005 | Oct 14, 2005 | 3-T Exploration, Inc. | Cagle Unit #2 | 6,300 | 42332023 |
| 607840Amendment | Oct 14, 2005 | Oct 14, 2005 | 3-T Exploration, Inc. | Cagle Unit #2 | 6,600 | 42332023 |
| 607404 | Oct 6, 2005 | Oct 6, 2005 | Southwestern Energy Prod. Co. | Jackson Gas Unit 1 #11 | 11,900 | 42332022 |
| 607287 | Oct 5, 2005 | Oct 5, 2005 | Goodrich Petroleum Company | Paluxy B Sand Unit #1A | 7,600 | 42331839 |
| 607279 | Oct 4, 2005 | Oct 4, 2005 | Goodrich Petroleum Company | Paluxy B Sand Unit #3 | 7,689 | 42331438 |
| 607149 | Sep 30, 2005 | Sep 30, 2005 | C. W. Resources, Inc. | Dyer #3HH | 12,200 | 42332020 |
| 607135 | Sep 30, 2005 | Sep 30, 2005 | Encore Operating, L.P. | Wilson, David G. #12 | 12,000 | 42332019 |
| 606991 | Sep 30, 2005 | Sep 30, 2005 | Encore Operating, L.P. | McElroy #06 | 12,000 | 42332021 |
| 606972 | Sep 28, 2005 | Sep 28, 2005 | Encore Operating, L.P. | Moore #6 | 12,000 | 42332018 |
| 604707 | Sep 27, 2005 | Sep 27, 2005 | C. W. Resources, Inc. | Mud Creek GU #2HH | 15,000 | 42331992 |
| 606835 | Sep 23, 2005 | Sep 23, 2005 | Encore Operating, L.P. | McElroy #11 | 12,000 | 42332017 |
| 606822 | Sep 23, 2005 | Sep 23, 2005 | Encore Operating, L.P. | Wilson, David G. #9 | 12,000 | 42332016 |
| 606778 | Sep 23, 2005 | Sep 23, 2005 | Encore Operating, L.P. | Wilson, David G. #13 | 12,000 | 42332015 |
| 606710 | Sep 23, 2005 | Sep 23, 2005 | Encore Operating, L.P. | Wilson, David G. #8R | 12,000 | 42332014 |
| 606746 | Sep 21, 2005 | Sep 21, 2005 | J-W Operating Co. | Slayton Unit #3 | 13,000 | 42332013 |
| 606633 | Sep 21, 2005 | Sep 21, 2005 | Southwestern Energy Prod. Co. | Arnold Gas Unit 2 #10 | 12,100 | 42332012 |
| 606627 | Sep 21, 2005 | Sep 21, 2005 | Southwestern Energy Prod. Co. | Grady Wilson Gas Unit 1 #10 | 12,200 | 42332010 |
| 606625 | Sep 21, 2005 | Sep 21, 2005 | Southwestern Energy Prod. Co. | Grady Wilson Gas Unit 1 #12 | 12,400 | 42332011 |
| 606272 | Sep 15, 2005 | Sep 15, 2005 | Encore Operating, L.P. | Wilson, David G. #2TP | 8,700 | 42331663 |
| 606255 | Sep 14, 2005 | Sep 14, 2005 | Petro-Hunt, L.L.C. | Mann et Al #1 | 13,300 | 42332008 |
| 606264 | Sep 13, 2005 | Sep 13, 2005 | J-W Operating Co. | Maynard, A. #5HH | 13,000 | 42332009 |
| 606039 | Sep 8, 2005 | Sep 8, 2005 | Southwestern Energy Prod. Co. | McMoyle Unit 1 #7 | 12,300 | 42332005 |
| 606036 | Sep 8, 2005 | Sep 8, 2005 | Southwestern Energy Prod. Co. | Arnold Gas Unit 1 #16 | 12,000 | 42332006 |
| 606034 | Sep 8, 2005 | Sep 8, 2005 | Southwestern Energy Prod. Co. | Newsome Unit 1 #6 | 12,200 | 42332004 |
| 606034Amendment | Sep 8, 2005 | Sep 8, 2005 | Southwestern Energy Prod. Co. | Newsome Unit 1 #6 | 12,200 | 42332004 |
| 606023 | Sep 8, 2005 | Sep 8, 2005 | C. W. Resources, Inc. | Lyles #7 | 12,200 | 42332007 |
| 604741 | Sep 7, 2005 | Sep 7, 2005 | Brandon Energy, Inc. | Edwards Unit #1 | 7,000 | 42331993 |
| 604741Amendment | Sep 7, 2005 | Sep 7, 2005 | Brandon Energy, Inc. | Edwards Unit #1H | 7,000 | 42331993 |
| 605578 | Aug 29, 2005 | Aug 29, 2005 | J-W Operating Co. | Maynard, A. #6HH | 13,000 | 42332002 |
| 605576 | Aug 29, 2005 | Aug 29, 2005 | Valence Operating Company | Cole #2 | 12,500 | 42332003 |
| 605553 | Aug 26, 2005 | Aug 26, 2005 | Chesapeake Operating, Inc. | Overton Gas Unit No. 3 #9 | 13,000 | 42332001 |
| 605553Amendment | Aug 26, 2005 | Aug 26, 2005 | Chesapeake Operating, Inc. | Overton Gas Unit No. 3 #9 | 13,000 | 42332001 |
| 603696 | Aug 25, 2005 | Aug 25, 2005 | Southwestern Energy Prod. Co. | Newsome Unit 1 #5 | 12,200 | 42331983 |
| 603637 | Aug 25, 2005 | Aug 25, 2005 | Southwestern Energy Prod. Co. | Sallie M. Warren Hrs. Gas Unit 1 #6 | 12,450 | 42331982 |
| 601254Amendment | Aug 22, 2005 | Aug 22, 2005 | Carrizo Oil & Gas, Inc. | Chisum #1 | 15,000 | 42331963 |
| 605161 | Aug 19, 2005 | Aug 19, 2005 | Southwestern Energy Prod. Co. | Waldrop Gas Unit 1 #7 | 12,300 | 42332000 |
| 605160 | Aug 19, 2005 | Aug 19, 2005 | Southwestern Energy Prod. Co. | McRimmon Unit 1 #14 | 12,200 | 42331999 |
| 605158 | Aug 19, 2005 | Aug 19, 2005 | Southwestern Energy Prod. Co. | Waldrop Gas Unit 1 #8 | 12,350 | 42331998 |
| 605031 | Aug 18, 2005 | Aug 18, 2005 | J-W Operating Co. | Carter Estates #3 | 14,000 | 42331997 |
| 604920 | Aug 15, 2005 | Aug 15, 2005 | Encore Operating, L.P. | Wilson, David G. #8 | 12,000 | 42331996 |
| 604894 | Aug 15, 2005 | Aug 15, 2005 | Encore Operating, L.P. | Swann, M.C. #8 | 12,000 | 42331995 |
| 604859 | Aug 12, 2005 | Aug 12, 2005 | Encore Operating, L.P. | Moore #5 | 12,000 | 42331994 |
| 604283 | Aug 3, 2005 | Aug 3, 2005 | Southwestern Energy Prod. Co. | Kickapoo Creek Gas Unit 1 #17 | 12,200 | 42331991 |
| 604192 | Aug 2, 2005 | Aug 2, 2005 | Encore Operating, L.P. | Moore #4 | 12,000 | 42331990 |
| 602491 | Jul 28, 2005 | Jul 28, 2005 | Goldston Oil Corporation | Sand Flat West (Paluxy a) Unit #2 | 7,600 | 42331968 |
| 602491Amendment | Jul 28, 2005 | Jul 28, 2005 | Goldston Oil Corporation | Sand Flat West (Paluxy a) Unit #2 | 7,600 | 42331968 |
| 603987 | Jul 27, 2005 | Jul 27, 2005 | Southwestern Energy Prod. Co. | Arnold Gas Unit 1 #11 | 12,000 | 42331989 |
| 603987Amendment | Jul 27, 2005 | Jul 27, 2005 | Southwestern Energy Prod. Co. | Arnold Gas Unit 1 #11 | 12,000 | 42331989 |
| 603981 | Jul 27, 2005 | Jul 27, 2005 | Southwestern Energy Prod. Co. | Woolf Gas Unit 1 #13 | 12,000 | 42331987 |
| 603984 | Jul 26, 2005 | Jul 26, 2005 | J-W Operating Co. | Maynard, A. #4 | 13,000 | 42331988 |
| 603785 | Jul 25, 2005 | Jul 25, 2005 | Map Production Co., Inc. | J. R. Odom Gas Unit 1 #3 | 12,400 | 42331986 |
| 603748 | Jul 25, 2005 | Jul 25, 2005 | Antero Resources II, LP | Echard Heirs Unit #4HH | 11,790 | 42331985 |
| 603748Amendment | Jul 25, 2005 | Jul 25, 2005 | Antero Resources II, LP | Echard Heirs Unit #4R | 11,975 | 42331985 |
| 603710 | Jul 21, 2005 | Jul 21, 2005 | J-W Operating Co. | Verner, George P. #1 | 10,000 | 42331984 |
| 603525 | Jul 18, 2005 | Jul 18, 2005 | Southwestern Energy Prod. Co. | Kickapoo Creek Gas Unit 1 #14 | 12,200 | 42331981 |
| 603448 | Jul 15, 2005 | Jul 15, 2005 | Southwestern Energy Prod. Co. | Newsome Unit 1 #4 | 12,200 | 42331979 |
| 603442 | Jul 15, 2005 | Jul 15, 2005 | Southwestern Energy Prod. Co. | J. F. Ware Gas Unit 1 #11 | 12,200 | 42331978 |
| 603449 | Jul 14, 2005 | Jul 14, 2005 | Southwestern Energy Prod. Co. | Vernon B. Wilson Gas Unit 1 #15 | 12,100 | 42331980 |
| 603438 | Jul 14, 2005 | Jul 14, 2005 | Southwestern Energy Prod. Co. | Shaw Gas Unit 1 #9 | 12,200 | 42331977 |
| 603329 | Jul 13, 2005 | Jul 13, 2005 | J-W Operating Co. | Slayton Unit #2 | 13,000 | 42331976 |
| 603329Amendment | Jul 13, 2005 | Jul 13, 2005 | J-W Operating Co. | Slayton Unit #2 | 13,000 | 42331976 |
| 560501 | Jul 8, 2005 | Jul 8, 2005 | Samson Lone Star LP | McFarlin, P. V. #1 | 8,135 | 42330916 |
| 602867 | Jul 1, 2005 | Jul 1, 2005 | J-W Operating Co. | Slayton Unit #1 | 13,000 | 42331974 |
| 602866 | Jul 1, 2005 | Jul 1, 2005 | J-W Operating Co. | Fraizer #1 | 13,000 | 42331975 |
| 602509 | Jun 30, 2005 | Jun 30, 2005 | Encore Operating, L.P. | Swann, M.C. #9 | 12,000 | 42331970 |
| 602690 | Jun 28, 2005 | Jun 28, 2005 | J-W Operating Co. | Cloke #1 | 13,000 | 42331973 |
| 602593 | Jun 28, 2005 | Jun 28, 2005 | Southwestern Energy Prod. Co. | Bright Gas Unit 1 #14 | 12,400 | 42331972 |
| 602592 | Jun 28, 2005 | Jun 28, 2005 | Southwestern Energy Prod. Co. | Morby Unit 1 #9 | 12,150 | 42331971 |
| 602492 | Jun 24, 2005 | Jun 24, 2005 | Goldston Oil Corporation | Sand Flat West (Paluxy a) Unit #2I | 7,600 | 42331969 |
| 602492Amendment | Jun 24, 2005 | Jun 24, 2005 | Goldston Oil Corporation | Sand Flat West (Paluxy a) Unit #2I | 7,600 | 42331969 |
| 602167 | Jun 17, 2005 | Jun 17, 2005 | J-W Operating Co. | Carter Gas Unit #2 | 14,000 | 42331967 |