| Northeast Blanco Unit #400R30-045-28271 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,564 | Sep 24, 1990 | 0 | 27,367 |
| Northeast Blanco Unit #404R30-045-28320 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,753 | Sep 24, 1990 | 0 | 49,652 |
| Gallegos Canyon Unit #50530-045-28235 | Simcoe LLC | San JuanKutz Pictured Cliffs, West (Gas) | ActiveGas | 1,815 | Sep 14, 1990 | 0 | 19,296 |
| State Gas Com AA #00130-045-28219 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,883 | Sep 11, 1990 | 0 | 92,404 |
| Northeast Blanco Unit #46130-045-28222 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,850 | Sep 11, 1990 | 0 | 10,727 |
| Tank Mountain B #00130-045-28226 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,558 | Sep 11, 1990 | 0 | 32,058 |
| Arnaud a #00130-045-28182 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,727 | Aug 29, 1990 | 0 | 52,426 |
| Arnaud a #00230-045-28183 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,440 | Aug 29, 1990 | 0 | 39,522 |
| Arnaud a #00330-045-28184 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,648 | Aug 29, 1990 | 0 | 46,915 |
| Isabel a #00130-045-28185 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,432 | Aug 29, 1990 | 0 | 33,503 |
| Fields a #02330-045-28186 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,080 | Aug 29, 1990 | 0 | 23,522 |
| McEwen Gas Com D #00130-045-28172 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,631 | Aug 23, 1990 | 0 | 45,764 |
| Gallegos Canyon Unit #38830-045-28153 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 1,782 | Aug 21, 1990 | 0 | 6,082 |
| Gallegos Canyon Unit #38930-045-28154 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | Temporarily abandonedGas | 1,740 | Aug 21, 1990 | 0 | 1,118 |
| Gallegos Canyon Unit #50430-045-28155 | Simcoe LLC | San JuanKutz Pictured Cliffs, West (Gas) | Temporarily abandonedGas | 1,709 | Aug 21, 1990 | 0 | 0 |
| Gallegos Canyon Unit #51730-045-28156 | Simcoe LLC | San JuanKutz Pictured Cliffs, West (Gas) | ActiveGas | 1,692 | Aug 21, 1990 | 0 | 12,016 |
| Trigg Federal Gas Com C #00130-045-28157 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,839 | Aug 21, 1990 | 0 | 39,311 |
| Northeast Blanco Unit #429R30-039-24878 | Simcoe LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 3,167 | Aug 13, 1990 | 0 | 29,500 |
| Gallegos Canyon Unit #39730-045-28118 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 1,448 | Aug 13, 1990 | 0 | 8,729 |
| Gallegos Canyon Unit #50230-045-28119 | Simcoe LLC | San JuanKutz Pictured Cliffs, West (Gas) | ActiveGas | 1,595 | Aug 13, 1990 | 0 | 14,898 |
| Gallegos Canyon Unit #39530-045-28234 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 1,336 | Aug 13, 1990 | 0 | 13,783 |
| Gallegos Canyon Unit #51530-045-28065 | Simcoe LLC | San JuanKutz Pictured Cliffs, West (Gas) | ActiveGas | 1,485 | Aug 6, 1990 | 0 | 13,654 |
| Gallegos Canyon Unit #39130-045-28066 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | PluggedGas | 1,370 | Aug 6, 1990 | 0 | 0 |
| Gallegos Canyon Unit #50630-045-28067 | Simcoe LLC | San JuanKutz Pictured Cliffs, West (Gas) | ActiveGas | 1,745 | Aug 3, 1990 | 0 | 60 |
| Gallegos Canyon Unit #51430-045-28069 | Simcoe LLC | San JuanKutz Pictured Cliffs, West (Gas) | PluggedGas | 1,500 | Aug 3, 1990 | 0 | 0 |
| Van Hook Gas Com a #00130-045-28083 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,110 | Aug 3, 1990 | 0 | 42,756 |
| Gallegos Canyon Unit #50130-045-28052 | Simcoe LLC | San JuanKutz Pictured Cliffs, West (Gas) | ActiveGas | 1,447 | Aug 2, 1990 | 0 | 18,696 |
| Gallegos Canyon Unit #51630-045-28063 | Simcoe LLC | San JuanKutz Pictured Cliffs, West (Gas) | PluggedGas | 1,520 | Aug 1, 1990 | 0 | 0 |
| Florance Z #00330-045-28051 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,855 | Jul 31, 1990 | 0 | 120,957 |
| Mudge a #05530-045-28004 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,825 | Jul 23, 1990 | 0 | 9,973 |
| Mudge a #05830-045-28005 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,950 | Jul 23, 1990 | 0 | 10,699 |
| Neil a #02430-045-28006 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,029 | Jul 23, 1990 | 0 | 15,230 |
| Neil a #02330-045-28007 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,082 | Jul 23, 1990 | 0 | 10,539 |
| Florance y #00330-045-27988 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,880 | Jul 9, 1990 | 0 | 12,760 |
| Patterson Gas Com C #00130-045-27989 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,739 | Jul 9, 1990 | 0 | 86,145 |
| Northeast Blanco Unit #50430-045-27991 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,416 | Jul 5, 1990 | 0 | 16,217 |
| Smyers Gas Com B #00130-045-27939 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,747 | Jul 2, 1990 | 2 | 46,277 |
| Mudge Gas Com C #00130-045-27940 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,877 | Jul 2, 1990 | 0 | 11,247 |
| Riddle B #00330-045-27938 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,380 | Jun 29, 1990 | 0 | 47,796 |
| Fields a #02230-045-27941 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,476 | Jun 29, 1990 | 0 | 9,319 |
| Barrett a #01630-045-27924 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,341 | Jun 26, 1990 | 0 | 22,502 |
| Horton Gas Com B #00330-045-27906 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,400 | Jun 25, 1990 | 0 | 14,794 |
| Hubbard Gas Com a #00130-045-27907 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,393 | Jun 25, 1990 | 0 | 8,265 |
| Northeast Blanco Unit #427R30-039-24795 | Simcoe LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 3,148 | Jun 19, 1990 | 0 | 34,682 |
| Storey Gas Com B #00130-045-27888 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,304 | Jun 19, 1990 | 0 | 10,357 |
| Florance AC #00430-045-27891 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,800 | Jun 19, 1990 | 0 | 10,336 |
| Florance Gas Com K #00330-045-27882 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,028 | Jun 18, 1990 | 0 | 15,315 |
| Florance #011R30-045-27890 | Simcoe LLC | San JuanBlanco-Mesaverde (Prorated Gas) | ActiveGas | 5,085 | Jun 18, 1990 | 107 | 30,592 |
| Fields Gas Com a #00130-045-27881 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,374 | Jun 15, 1990 | 0 | 6,654 |
| Fields a #01930-045-27893 | Simcoe LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 3,202 | Jun 15, 1990 | 0 | 13,506 |