| Hill-Mayer Eeee #142-435-33408 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,434 | Aug 13, 1991 | — | — |
| Mayer Ranch FFF #9842-435-33288 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,330 | Aug 8, 1991 | — | — |
| Mayer Ranch KKK #14142-435-33329 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,410 | Aug 8, 1991 | — | — |
| Deberry Heirs Unit #342-435-33816 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,700 | Aug 6, 1991 | — | — |
| Wilson Duke #189642-435-33820 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,725 | Jul 25, 1991 | — | — |
| Canyon Ranch #0935S42-435-33817 | Meridian Oil Inc. | Sutton, TXSawyer (Canyon) | Not on schedule | 5,400 | Jul 17, 1991 | — | — |
| Canyon Ranch #0923S42-435-33818 | Meridian Oil Inc. | Sutton, TXSawyer (Canyon) | Not on schedule | 5,400 | Jul 17, 1991 | — | — |
| Canyon Ranch #1154S42-435-33819 | Meridian Oil Inc. | Sutton, TXSawyer (Canyon) | Not on schedule | 5,400 | Jul 17, 1991 | — | — |
| Deberry "a" #3742-435-33815 | Meridian Oil Inc. | Sutton, TXSonora (Canyon Upper) | Not on schedule | 6,700 | Jul 11, 1991 | — | — |
| Deberry-Halbert Unit #742-435-33812 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,700 | Jul 5, 1991 | — | — |
| Deberry-Halbert Unit #842-435-33813 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,800 | Jul 5, 1991 | — | — |
| Deberry a #3942-435-33814 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | Temporarily abandonedGas | 6,700 | Jul 5, 1991 | — | — |
| Simmons Ranch #1042-435-33808 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | Temporarily abandonedGas | 7,350 | Jun 28, 1991 | — | — |
| Deberry-Meckel Unit #642-435-33810 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,400 | Jun 27, 1991 | — | — |
| Mayfield 40 #442-435-33747 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,172 | Jun 14, 1991 | — | — |
| Canyon Ranch #0021S42-435-33807 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,812 | Jun 11, 1991 | — | — |
| Berger #1342-435-33787 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,300 | May 30, 1991 | — | — |
| Vanderstucken 69 #442-435-33804 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,300 | May 29, 1991 | — | — |
| Dunbar Ned #2242-435-33805 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,300 | May 29, 1991 | — | — |
| Collier Shurley #642-435-33806 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,300 | May 29, 1991 | — | — |
| Canyon Ranch #1047S42-435-33803 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 5,400 | May 28, 1991 | — | — |
| Askew/Glimp 42 #442-435-33802 | American Exploration Company | Sutton, TXSawyer (Canyon) | Not on schedule | 6,435 | May 21, 1991 | — | — |
| Dunbar Ned #2142-435-33800 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,368 | May 17, 1991 | — | — |
| Fields 21 #542-435-33801 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,100 | May 17, 1991 | — | — |
| Miers a #151242-435-33788 | Robert C. Brower LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,050 | May 14, 1991 | — | — |
| Miers a #151442-435-33789 | Robert C. Brower LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 5,812 | May 14, 1991 | — | — |
| Sawyer 146 #542-435-33790 | Robert C. Brower LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,150 | May 10, 1991 | — | — |
| Sawyer 145 #642-435-33791 | Robert C. Brower LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,125 | May 10, 1991 | — | — |
| Sawyer a 144 #842-435-33792 | Robert C. Brower LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,025 | May 10, 1991 | — | — |
| Sawyer 143 #842-435-33793 | Robert C. Brower LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,920 | May 10, 1991 | — | — |
| Sawyer 113 #842-435-33794 | Robert C. Brower LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,850 | May 10, 1991 | — | — |
| Sawyer 113 #742-435-33795 | Robert C. Brower LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,960 | May 10, 1991 | — | — |
| Jones 122 #742-435-33796 | Robert C. Brower LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,500 | May 10, 1991 | — | — |
| Shurley Collier #542-435-33797 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,300 | May 10, 1991 | — | — |
| Shurley B 97 #742-435-33798 | Robert C. Brower LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,580 | May 10, 1991 | — | — |
| Shurley B 97 #842-435-33799 | Robert C. Brower LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,580 | May 10, 1991 | — | — |
| Shurley a 99 #742-435-33778 | Robert C. Brower LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,377 | May 3, 1991 | — | — |
| Jones 122 #842-435-33786 | Robert C. Brower LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,517 | May 2, 1991 | — | — |
| Jones 97 #742-435-33783 | Robert C. Brower LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,450 | May 1, 1991 | — | — |
| Steen #2742-435-33784 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,000 | May 1, 1991 | — | — |
| Halbert #742-435-33785 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 7,300 | May 1, 1991 | — | — |
| Wilson Duke #185742-435-33779 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,950 | Apr 29, 1991 | — | — |
| Deberry a #3542-435-33781 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,700 | Apr 26, 1991 | — | — |
| Steen #2842-435-33782 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 5,800 | Apr 26, 1991 | — | — |
| Jones 97 #642-435-33780 | Robert C. Brower LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,450 | Apr 25, 1991 | — | — |
| Deberry Heirs Unit #442-435-33776 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | Temporarily abandonedGas | 6,807 | Apr 18, 1991 | — | — |
| Deberry a #3342-435-33777 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | Temporarily abandonedGas | 6,700 | Apr 18, 1991 | — | — |
| Cauthorn Mack 129 #129842-435-33775 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,000 | Apr 15, 1991 | — | — |
| Shurley 98 #842-435-33769 | Robert C. Brower LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,383 | Apr 12, 1991 | — | — |
| Shurley B 97 #642-435-33770 | Robert C. Brower LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,580 | Apr 12, 1991 | — | — |