| Mayer Ranch 41 #142-435-39018 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,495 | Jun 26, 2008 | — | — |
| Sawyer 129 #1942-435-39019 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 7,192 | Jun 26, 2008 | — | — |
| Jones 119 #642-435-39014 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,367 | Jun 25, 2008 | — | — |
| Mayer, Edwin S. Jr. "D" #10242-435-39017 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 8,775 | Jun 25, 2008 | — | — |
| Deberry a #9942-435-39013 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,563 | Jun 21, 2008 | — | — |
| Hill-Mayer Edwin S. Jr. BB #642-435-39009 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,223 | Jun 20, 2008 | — | — |
| Sawyer-Jones #160842-435-39012 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 8,916 | Jun 18, 2008 | — | — |
| Canyon Ranch #2165S42-435-39011 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,028 | Jun 16, 2008 | — | — |
| Canyon Ranch 207 #24S42-435-39007 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,808 | Jun 13, 2008 | — | — |
| Canyon Ranch 207 #26S42-435-39008 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,788 | Jun 13, 2008 | — | — |
| Canyon Ranch #2162S42-435-39010 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 7,003 | Jun 13, 2008 | — | — |
| Simmons 72 #1542-435-39006 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,300 | Jun 12, 2008 | — | — |
| Simmons 3 #842-435-39002 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,086 | Jun 11, 2008 | — | — |
| Simmons 71 #1442-435-39003 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,214 | Jun 11, 2008 | — | — |
| Richardson 4 #1442-435-39005 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,507 | Jun 11, 2008 | — | — |
| Richardson 138 #1842-435-38999 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,514 | Jun 10, 2008 | — | — |
| Mayer Ranch G #70342-435-39001 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,384 | Jun 10, 2008 | — | — |
| Weitz #40142-435-38996 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 10,150 | Jun 6, 2008 | — | — |
| Mayfield 41 #13H42-435-38997 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 7,300 | Jun 6, 2008 | — | — |
| Lancaster 185 #242-435-39000 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,001 | Jun 6, 2008 | — | — |
| Valliant #1642-435-38976 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,616 | Jun 3, 2008 | — | — |
| Hill-Mayer Edwin S. Jr. y #342-435-38995 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,178 | Jun 2, 2008 | — | — |
| Sarah Buss Hicks #142-435-38994 | Lone Star Oil & Gaspermitted by · no operator of record | Sutton, TXSawyer (Canyon) | Not on schedule | 4,800 | May 30, 2008 | — | — |
| Ward 127 #2442-435-38992 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 7,914 | May 23, 2008 | — | — |
| Ward 127 #2242-435-38993 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 7,915 | May 23, 2008 | — | — |
| Simmons 73 #1242-435-38988 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,166 | May 21, 2008 | — | — |
| Canyon Ranch 207 #11S42-435-38523 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,815 | May 20, 2008 | — | — |
| Simmons 72 #1242-435-38763 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,125 | May 20, 2008 | — | — |
| Simmons 3 #942-435-38984 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,300 | May 20, 2008 | — | — |
| Hill-Mayer Minnie H. B #642-435-38985 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 7,880 | May 20, 2008 | — | — |
| Stewart #20542-435-38989 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,502 | May 20, 2008 | — | — |
| Mayer 38 #942-435-38990 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 8,425 | May 20, 2008 | — | — |
| Genini #312842-435-38964 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,030 | May 19, 2008 | — | — |
| Genini #312742-435-38966 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,362 | May 19, 2008 | — | — |
| Patterson Floyd #342-435-38986 | Fraley Resources LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 4,720 | May 19, 2008 | — | — |
| Sawyer 113 #2042-435-38987 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,686 | May 19, 2008 | — | — |
| Genini #313242-435-38961 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,450 | May 16, 2008 | — | — |
| Ward 114 #2142-435-38980 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,050 | May 16, 2008 | — | — |
| Ward 114 #2242-435-38981 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,880 | May 16, 2008 | — | — |
| Ward 114 #2642-435-38983 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Plugged | 8,300 | May 16, 2008 | — | — |
| Genini #312942-435-38956 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,955 | May 15, 2008 | — | — |
| Genini #313042-435-38957 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,329 | May 15, 2008 | — | — |
| Genini #313142-435-38958 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,940 | May 15, 2008 | — | — |
| Cusenbary 58 #942-435-38979 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,922 | May 8, 2008 | — | — |
| Mayer Edwin S. Jr. B 38 #642-435-38977 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,540 | May 6, 2008 | — | — |
| Sawyer 113 #1942-435-38978 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,825 | May 6, 2008 | — | — |
| Whitehead 9 #542-435-38975 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 8,975 | May 2, 2008 | — | — |
| Canyon Ranch #117S42-435-38971 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,401 | Apr 30, 2008 | — | — |
| Jones 119 #1842-435-38973 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,464 | Apr 30, 2008 | — | — |
| Genini #371442-435-38974 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,710 | Apr 30, 2008 | — | — |