| 560487 | Apr 14, 2005 | Apr 14, 2005 | Southwestern Energy Prod. Co. | Marion | Brevard #1 | 11,550 | 31530915 |
| 560487Amendment | Apr 14, 2005 | Apr 14, 2005 | Southwestern Energy Prod. Co. | Marion | J. M. Watts Gas Unit 1 #1 | 11,550 | 31530915 |
| 560339 | Apr 12, 2005 | Apr 12, 2005 | Southwestern Energy Prod. Co. | Smith | Bright Gas Unit 1 #13 | 12,400 | 42331937 |
| 560053 | Apr 6, 2005 | Apr 6, 2005 | Southwestern Energy Prod. Co. | Shelby | Beckham Gas Unit 1 #3 | 11,400 | 41931006 |
| 558095 | Apr 1, 2005 | Apr 1, 2005 | Southwestern Energy Prod. Co. | Smith | Shaw Gas Unit 1 #8 | 12,200 | 42331922 |
| 557737 | Mar 25, 2005 | Mar 25, 2005 | Southwestern Energy Prod. Co. | Smith | Shaw Gas Unit 1 #7 | 12,200 | 42331917 |
| 557600 | Mar 18, 2005 | Mar 18, 2005 | Southwestern Energy Prod. Co. | Smith | Bright Gas Unit 1 #10 | 12,200 | 42331911 |
| 559169 | Mar 17, 2005 | Mar 17, 2005 | Southwestern Energy Prod. Co. | Smith | Bright Gas Unit 1 #15 | 12,200 | 42331931 |
| 559109 | Mar 16, 2005 | Mar 16, 2005 | Southwestern Energy Prod. Co. | Nacogdoches | Griffith Heirs #1 | 11,800 | 34732023 |
| 559108 | Mar 16, 2005 | Mar 16, 2005 | Southwestern Energy Prod. Co. | Smith | Arnold Gas Unit 1 #9 | 12,000 | 42331927 |
| 559106 | Mar 16, 2005 | Mar 16, 2005 | Southwestern Energy Prod. Co. | Smith | McMoyle Unit 1 #6 | 12,400 | 42331928 |
| 557643 | Feb 14, 2005 | Feb 14, 2005 | Southwestern Energy Prod. Co. | Cherokee | Sessions Heirs #1 | 11,900 | 07331125 |
| 557642 | Feb 14, 2005 | Feb 14, 2005 | Southwestern Energy Prod. Co. | Smith | Jasper Wilson Gas Unit 1 #16 | 12,300 | 42331912 |
| 557641 | Feb 14, 2005 | Feb 14, 2005 | Southwestern Energy Prod. Co. | Smith | Bright Gas Unit 1 #11 | 12,300 | 42331913 |
| 557640 | Feb 14, 2005 | Feb 14, 2005 | Southwestern Energy Prod. Co. | Smith | J.F. Ware Gas Unit 1 #9 | 12,200 | 42331914 |
| 557639 | Feb 14, 2005 | Feb 14, 2005 | Southwestern Energy Prod. Co. | Smith | Waldrop Gas Unit 1 #6 | 12,400 | 42331915 |
| 557639Amendment | Feb 14, 2005 | Feb 14, 2005 | Southwestern Energy Prod. Co. | Smith | Waldrop Gas Unit 1 #6 | 12,400 | 42331915 |
| 555223 | Jan 18, 2005 | Jan 18, 2005 | Southwestern Energy Prod. Co. | Smith | Milton Anderson Gas Unit 1 #15 | 12,000 | 42331885 |
| 555223Amendment | Jan 18, 2005 | Jan 18, 2005 | Southwestern Energy Prod. Co. | Smith | Milton Anderson Gas Unit 1 #15 | 12,200 | 42331885 |
| 556088 | Jan 12, 2005 | Jan 12, 2005 | Southwestern Energy Prod. Co. | Smith | Frank M. Burke Jr. Gas Unit 1 #14 | 12,350 | 42331903 |
| 556087 | Jan 12, 2005 | Jan 12, 2005 | Southwestern Energy Prod. Co. | Smith | Jasper Wilson Gas Unit 1 #15 | 12,200 | 42331902 |
| 556086 | Jan 12, 2005 | Jan 12, 2005 | Southwestern Energy Prod. Co. | Smith | Woolf Gas Unit 1 #14 | 11,900 | 42331901 |
| 556084 | Jan 12, 2005 | Jan 12, 2005 | Southwestern Energy Prod. Co. | Smith | Kickapoo Creek Gas Unit 1 #11 | 12,200 | 42331900 |
| 556014 | Jan 11, 2005 | Jan 11, 2005 | Southwestern Energy Prod. Co. | Shelby | Stephenson "A" #1 | 8,500 | 41930715 |
| 556013 | Jan 11, 2005 | Jan 11, 2005 | Southwestern Energy Prod. Co. | Nacogdoches | Jopling Gas Unit 1 #3 | 10,500 | 34732000 |
| 556012 | Jan 11, 2005 | Jan 11, 2005 | Southwestern Energy Prod. Co. | Smith | Grady Wilson Gas Unit 1 #9 | 12,400 | 42331895 |
| 556012Amendment | Jan 11, 2005 | Jan 11, 2005 | Southwestern Energy Prod. Co. | Smith | Grady Wilson Gas Unit 1 #9 | 12,600 | 42331895 |
| 552985 | Jan 11, 2005 | Jan 11, 2005 | Southwestern Energy Prod. Co. | Smith | Jackson Gas Unit 1 #8 | 11,950 | 42331865 |
| 555878 | Jan 7, 2005 | Jan 7, 2005 | Southwestern Energy Prod. Co. | Smith | McRimmon Unit 1 #16 | 12,200 | 42331893 |
| 555519 | Dec 30, 2004 | Dec 30, 2004 | Southwestern Energy Prod. Co. | Smith | Allred Gas Unit 1 #13 | 12,300 | 42331890 |
| 555519Amendment | Dec 30, 2004 | Dec 30, 2004 | Southwestern Energy Prod. Co. | Smith | Allred Gas Unit 1 #13 | 12,300 | 42331890 |
| 555517 | Dec 30, 2004 | Dec 30, 2004 | Southwestern Energy Prod. Co. | Smith | Vernon B. Wilson Gas Unit 1 #11 | 12,000 | 42331889 |
| 555516 | Dec 30, 2004 | Dec 30, 2004 | Southwestern Energy Prod. Co. | Smith | Frank M. Burke, Jr. Gas Unit 1 #13 | 12,200 | 42331888 |
| 555515 | Dec 30, 2004 | Dec 30, 2004 | Southwestern Energy Prod. Co. | Smith | Woolf Gas Unit 1 #11 | 11,900 | 42331887 |
| 555515Amendment | Dec 30, 2004 | Dec 30, 2004 | Southwestern Energy Prod. Co. | Smith | Woolf Gas Unit 1 #11 | 11,900 | 42331887 |
| 552285 | Nov 29, 2004 | Nov 29, 2004 | Southwestern Energy Prod. Co. | Smith | Jackson Gas Unit 1 #9 | 11,900 | 42331856 |
| 553647 | Nov 16, 2004 | Nov 16, 2004 | Southwestern Energy Prod. Co. | Smith | McRimmon Unit 1 #15 | 12,200 | 42331869 |
| 552880 | Oct 27, 2004 | Oct 27, 2004 | Southwestern Energy Prod. Co. | Smith | Morby Unit 1 #6 | 12,200 | 42331863 |
| 552880Amendment | Oct 27, 2004 | Oct 27, 2004 | Southwestern Energy Prod. Co. | Smith | Morby Unit 1 #6 | 12,200 | 42331863 |
| 552350 | Oct 15, 2004 | Oct 15, 2004 | Southwestern Energy Prod. Co. | Shelby | Beckham #1 | 10,339 | 41930888 |
| 552257 | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | Smith | J. F. Ware Gas Unit 1 #10 | 12,200 | 42331851 |
| 552256 | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | Smith | Allred Gas Unit 1 #12 | 12,200 | 42331853 |
| 552255 | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | Smith | Morby Unit 1 #5 | 12,200 | 42331855 |
| 552255Amendment | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | Smith | Morby Unit 1 #5 | 12,200 | 42331855 |
| 552254 | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | Smith | Frank M. Burke, Jr. Gas Unit 1 #15 | 12,300 | 42331850 |
| 552254Amendment | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | Smith | Frank M. Burke, Jr. Gas Unit 1 #15 | 12,300 | 42331850 |
| 552253 | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | Smith | Waldrop Gas Unit 1 #4 | 12,350 | 42331854 |
| 552252 | Oct 13, 2004 | Oct 13, 2004 | Southwestern Energy Prod. Co. | Smith | Bright Gas Unit 1 #9 | 12,200 | 42331852 |
| 551283 | Oct 12, 2004 | Oct 12, 2004 | Southwestern Energy Prod. Co. | Smith | Jerry Cross Gas Unit 1 #8 | 12,300 | 42331841 |
| 551283Amendment | Oct 12, 2004 | Oct 12, 2004 | Southwestern Energy Prod. Co. | Smith | Jerry Cross Gas Unit 1 #8 | 12,300 | 42331841 |
| 550827 | Oct 8, 2004 | Oct 8, 2004 | Southwestern Energy Prod. Co. | Smith | Wright Gas Unit 1 #8 | 11,900 | 42331838 |
| 551989 | Oct 6, 2004 | Oct 6, 2004 | Southwestern Energy Prod. Co. | Nacogdoches | Reavley #1 | 11,650 | 34731978 |
| 551625 | Sep 28, 2004 | Sep 28, 2004 | Southwestern Energy Prod. Co. | Smith | P M Wilson Heirs Unit 1 #6 | 11,900 | 42331844 |
| 551299 | Sep 24, 2004 | Sep 24, 2004 | Southwestern Energy Prod. Co. | Smith | Frank M. Burke, Jr. Gas Unit 1 #11 | 12,200 | 42331843 |
| 551299Amendment | Sep 24, 2004 | Sep 24, 2004 | Southwestern Energy Prod. Co. | Smith | Frank M. Burke, Jr. Gas Unit 1 #11 | 12,300 | 42331843 |
| 551211 | Sep 20, 2004 | Sep 20, 2004 | Southwestern Energy Prod. Co. | Smith | Morby Unit 1 #4 | 12,350 | 42331840 |
| 551211Amendment | Sep 20, 2004 | Sep 20, 2004 | Southwestern Energy Prod. Co. | Smith | Morby Unit 1 #4 | 12,350 | 42331840 |
| 550817 | Sep 10, 2004 | Sep 10, 2004 | Southwestern Energy Prod. Co. | Smith | Grady Wilson Gas Unit 1 #7 | 12,300 | 42331837 |
| 550816 | Sep 10, 2004 | Sep 10, 2004 | Southwestern Energy Prod. Co. | Smith | Frank M Burke, Jr Gas Unit 1 #12 | 12,300 | 42331836 |
| 550816Amendment | Sep 10, 2004 | Sep 10, 2004 | Southwestern Energy Prod. Co. | Smith | Frank M Burke, Jr Gas Unit 1 #12 | 12,300 | 42331836 |
| 550674 | Sep 8, 2004 | Sep 8, 2004 | Southwestern Energy Prod. Co. | Smith | Jerry Cross Gas Unit 1 #11 | 12,300 | 42331835 |
| 550673 | Sep 8, 2004 | Sep 8, 2004 | Southwestern Energy Prod. Co. | Smith | Sallie M Warren Hrs. Gas Unit 1 #4 | 12,300 | 42331834 |
| 550672 | Sep 8, 2004 | Sep 8, 2004 | Southwestern Energy Prod. Co. | Smith | Frank M Burke, Jr Gas Unit 1 #4 | 12,300 | 42331833 |
| 550672Amendment | Sep 8, 2004 | Sep 8, 2004 | Southwestern Energy Prod. Co. | Smith | Frank M Burke, Jr Gas Unit 1 #4 | 12,115 | 42331833 |
| 550545 | Sep 7, 2004 | Sep 7, 2004 | Southwestern Energy Prod. Co. | Smith | Vernon B Wilson Gas Unit 1 #14 | 12,200 | 42331832 |
| 550545Amendment | Sep 7, 2004 | Sep 7, 2004 | Southwestern Energy Prod. Co. | Smith | Vernon B Wilson Gas Unit 1 #14 | 12,200 | 42331832 |
| 548950 | Sep 3, 2004 | Sep 3, 2004 | Southwestern Energy Prod. Co. | Smith | Jerry Cross Gas Unit 1 #9 | 12,200 | 42331813 |
| 549481 | Aug 27, 2004 | Aug 27, 2004 | Southwestern Energy Prod. Co. | Smith | Bright Gas Unit 1 #7 | 12,200 | 42331818 |
| 548631 | Aug 24, 2004 | Aug 24, 2004 | Southwestern Energy Prod. Co. | Smith | Jerry Cross Gas Unit 1 #7 | 12,200 | 42331809 |
| 549676 | Aug 20, 2004 | Aug 20, 2004 | Southwestern Energy Prod. Co. | Smith | Carrie Matlock Gas Unit 1 #15 | 12,200 | 42331824 |
| 549687 | Aug 17, 2004 | Aug 17, 2004 | Southwestern Energy Prod. Co. | Smith | Frank M. Burke, Jr. Gas Unit I #16 | 12,250 | 42331823 |
| 549687Amendment | Aug 17, 2004 | Aug 17, 2004 | Southwestern Energy Prod. Co. | Smith | Frank M. Burke, Jr. Gas Unit I #16 | 12,250 | 42331823 |
| 549295 | Aug 13, 2004 | Aug 13, 2004 | Southwestern Energy Prod. Co. | Smith | Wright Gas Unit I #7 | 11,900 | 42331816 |
| 548995 | Aug 4, 2004 | Aug 4, 2004 | Southwestern Energy Prod. Co. | Smith | Carrie Matlock Gas Unit 1 #8 | 12,200 | 42331814 |
| 548835 | Jul 28, 2004 | Jul 28, 2004 | Southwestern Energy Prod. Co. | Smith | Carrie Matlock Gas Unit 1 #11 | 12,200 | 42331811 |
| 548717 | Jul 27, 2004 | Jul 27, 2004 | Southwestern Energy Prod. Co. | Nueces | State Tract 433 Gas Unit #2 | 8,800 | 35533651 |
| 548363 | Jul 21, 2004 | Jul 21, 2004 | Southwestern Energy Prod. Co. | Smith | Frank M. Burke, Jr. Gas Unit 1 #9 | 12,200 | 42331805 |
| 548482 | Jul 20, 2004 | Jul 20, 2004 | Southwestern Energy Prod. Co. | Smith | Bright Gas Unit 1 #8 | 12,200 | 42331807 |
| 548481 | Jul 20, 2004 | Jul 20, 2004 | Southwestern Energy Prod. Co. | Smith | Jasper Wilson Gas Unit 1 #10 | 12,250 | 42331806 |
| 548374 | Jul 16, 2004 | Jul 16, 2004 | Southwestern Energy Prod. Co. | Smith | Frank M. Burke Jr. Gas Unit 1 #8 | 12,200 | 42331803 |
| 548373 | Jul 16, 2004 | Jul 16, 2004 | Southwestern Energy Prod. Co. | Smith | Jasper Wilson Gas Unit 1 #14 | 12,200 | 42331804 |
| 548373Amendment | Jul 16, 2004 | Jul 16, 2004 | Southwestern Energy Prod. Co. | Smith | Jasper Wilson Gas Unit 1 #14 | 12,200 | 42331804 |
| 548372 | Jul 16, 2004 | Jul 16, 2004 | Southwestern Energy Prod. Co. | Smith | Allred Gas Unit #14 | 12,200 | 42331801 |
| 548371 | Jul 16, 2004 | Jul 16, 2004 | Southwestern Energy Prod. Co. | Smith | Morby Unit #3 | 12,200 | 42331802 |
| 548290 | Jul 15, 2004 | Jul 15, 2004 | Southwestern Energy Prod. Co. | Smith | Milton Anderson Gas Unit 1 #9 | 11,900 | 42331800 |
| 548289 | Jul 15, 2004 | Jul 15, 2004 | Southwestern Energy Prod. Co. | Smith | Burke, Frank M., Jr Gas Unit 1 #10 | 12,200 | 42331799 |
| 547054 | Jul 9, 2004 | Jul 9, 2004 | Southwestern Energy Prod. Co. | Smith | Milton Anderson Gas Unit 1 #11 | 12,000 | 42331787 |
| 547054Amendment | Jul 9, 2004 | Jul 9, 2004 | Southwestern Energy Prod. Co. | Smith | Milton Anderson Gas Unit 1 #11 | 12,000 | 42331787 |
| 547222 | Jun 21, 2004 | Jun 21, 2004 | Southwestern Energy Prod. Co. | Smith | McRimmon Gas Unit 1 #12 | 12,200 | 42331792 |
| 547220 | Jun 21, 2004 | Jun 21, 2004 | Southwestern Energy Prod. Co. | Smith | Kickapoo Creek Gas Unit 1 #10 | 12,100 | 42331791 |
| 547088 | Jun 17, 2004 | Jun 17, 2004 | Southwestern Energy Prod. Co. | Smith | Bright Gas Unit 1 #6 | 12,200 | 42331789 |
| 547087 | Jun 17, 2004 | Jun 17, 2004 | Southwestern Energy Prod. Co. | Smith | Jerry Cross Gas Unit 1 #6 | 12,000 | 42331788 |
| 547025 | Jun 16, 2004 | Jun 16, 2004 | Southwestern Energy Prod. Co. | Smith | Matlock, Carrie Gas Unit 1 #10 | 12,200 | 42331784 |
| 547024 | Jun 16, 2004 | Jun 16, 2004 | Southwestern Energy Prod. Co. | Smith | Jackson Gas Unit 1 #5 | 11,900 | 42331785 |
| 546014 | Jun 16, 2004 | Jun 16, 2004 | Southwestern Energy Prod. Co. | Smith | Jasper Wilson Gas Unit 1 #12 | 12,200 | 42331779 |
| 546015 | May 21, 2004 | May 21, 2004 | Southwestern Energy Prod. Co. | Smith | McRimmon Gas Unit 1 #13 | 12,200 | 42331780 |
| 546015Amendment | May 21, 2004 | May 21, 2004 | Southwestern Energy Prod. Co. | Smith | McRimmon Gas Unit 1 #13 | 12,200 | 42331780 |
| 546010 | May 21, 2004 | May 21, 2004 | Southwestern Energy Prod. Co. | Smith | Milton Anderson Gas Unit 1 #13 | 11,950 | 42331776 |
| 546009 | May 21, 2004 | May 21, 2004 | Southwestern Energy Prod. Co. | Smith | Jasper Wilson Gas Unit 1 #13 | 12,250 | 42331777 |
| 546008 | May 21, 2004 | May 21, 2004 | Southwestern Energy Prod. Co. | Smith | Perry Gas Unit 1 #5 | 12,200 | 42331778 |