| Rincon Unit #108P30-039-27245 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,514 | Mar 27, 2003 | 38 | 26,097 |
| Rincon Unit #126R30-039-27314 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,600 | Mar 27, 2003 | 65 | 26,914 |
| Rincon Unit #136P30-039-27326 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,577 | Mar 18, 2003 | 108 | 24,604 |
| Rincon Unit #156P30-039-27319 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,748 | Feb 19, 2003 | 32 | 16,586 |
| Rincon Unit #166P30-039-27320 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,563 | Feb 19, 2003 | 25 | 25,656 |
| Freeman 11 #00430-045-31596 | Enduring Resources, LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,205 | Jan 1, 2003 | 0 | 28,640 |
| Rincon Unit #183R30-039-26997 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,559 | Dec 6, 2002 | 53 | 19,785 |
| Rincon Unit #161R30-039-27080 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,712 | Nov 8, 2002 | 9 | 8,512 |
| Rincon Unit #133R30-039-27075 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,700 | Nov 5, 2002 | 26 | 13,946 |
| Rincon Unit #180R30-039-27067 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,704 | Oct 18, 2002 | 0 | 10,305 |
| USA 23 #00230-045-31150 | Enduring Resources, LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 1,695 | Sep 6, 2002 | 0 | 8,744 |
| Rincon Unit #127R30-039-26825 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,641 | Jul 29, 2002 | 145 | 20,720 |
| Rincon Unit #174R30-039-27008 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,604 | Jun 18, 2002 | 6 | 12,989 |
| Rincon Unit #125R30-039-27003 | Enduring Resources, LLC | Rio ArribaBlanco-Mesaverde (Prorated Gas) | ActiveGas | 7,734 | Jun 17, 2002 | 15 | 14,863 |
| Rincon Unit #186R30-039-27007 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,438 | Jun 17, 2002 | 404 | 11,966 |
| Rincon Unit #125P30-039-27010 | Enduring Resources, LLC | Rio ArribaBlanco-Mesaverde (Prorated Gas) | ActiveGas | 7,707 | Jun 17, 2002 | 6 | 10,112 |
| Rincon Unit #177R30-039-26977 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,770 | Jun 10, 2002 | 1 | 14,377 |
| Rincon Unit #134R30-039-26982 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,351 | Jun 10, 2002 | 226 | 32,305 |
| Rincon Unit Com #203M30-039-26988 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,473 | Jun 10, 2002 | 135 | 11,456 |
| Rincon Unit #182R30-039-27009 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,734 | Jun 7, 2002 | 26 | 13,439 |
| USA 23 #00130-045-31110 | Enduring Resources, LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 1,935 | Jun 7, 2002 | 0 | 10,701 |
| Rincon Unit #159R30-039-26998 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,703 | Jun 5, 2002 | 2 | 6,380 |
| Rincon Unit #164R30-039-26996 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,317 | May 7, 2002 | 114 | 15,451 |
| Navajo E 12 #00930-045-30934 | Enduring Resources, LLC | San JuanBasin Dakota (Prorated Gas) | ActiveGas | 6,141 | Dec 13, 2001 | 0 | 1,954 |
| Rincon Unit #156R30-039-26836 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,718 | Oct 12, 2001 | 34 | 10,972 |
| Keys Com #00230-045-30782 | Enduring Resources, LLC | San JuanOtero Chacra (Gas) | ActiveGas | 3,200 | Aug 22, 2001 | 0 | 5,184 |
| Keys Com #00330-045-30783 | Enduring Resources, LLC | San JuanOtero Chacra (Gas) | ActiveGas | 3,150 | Aug 22, 2001 | 0 | 4,796 |
| Rincon Unit #231R30-039-26691 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,264 | Aug 10, 2001 | 174 | 16,624 |
| Blanco #004B30-045-30605 | Enduring Resources, LLC | San JuanBlanco-Mesaverde (Prorated Gas) | PluggedGas | 4,600 | Jul 23, 2001 | 0 | 0 |
| John Charles #006C30-045-30604 | Enduring Resources, LLC | San JuanBlanco-Mesaverde (Prorated Gas) | ActiveGas | 4,540 | Jul 19, 2001 | 23 | 6,236 |
| Nellie Platero #005C30-045-30568 | Enduring Resources, LLC | San JuanBlanco-Mesaverde (Prorated Gas) | ActiveGas | 4,650 | Jul 11, 2001 | 118 | 18,470 |
| Blanco #001B30-045-30603 | Enduring Resources, LLC | San JuanBlanco-Mesaverde (Prorated Gas) | ActiveGas | 6,400 | Jul 11, 2001 | 18 | 12,580 |
| Rincon Unit #303M30-039-26744 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,695 | Jun 18, 2001 | 98 | 15,922 |
| Rincon Unit #227M30-039-26761 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,493 | Jun 8, 2001 | 109 | 13,004 |
| New Mexico State 36 #00230-045-30664 | Enduring Resources, LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,553 | May 31, 2001 | 0 | 76,168 |
| New Mexico State 32 #00230-045-30666 | Enduring Resources, LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,310 | May 10, 2001 | 0 | 28,571 |
| New Mexico Com M #001A30-045-30667 | Enduring Resources, LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 5,075 | May 10, 2001 | 0 | 41,903 |
| Rincon Unit #165M30-039-26678 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,590 | May 9, 2001 | 52 | 19,006 |
| Rincon Unit #302M30-039-26689 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,228 | Apr 26, 2001 | 26 | 12,997 |
| Rincon Unit #306M30-039-26677 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,570 | Apr 20, 2001 | 127 | 18,517 |
| Rincon Unit #229M30-039-26682 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,588 | Apr 16, 2001 | 8 | 17,183 |
| Rincon Unit #185R30-039-26690 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,533 | Apr 10, 2001 | 84 | 16,632 |
| Rincon Unit #201M30-039-26725 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,413 | Mar 29, 2001 | 104 | 15,325 |
| Rincon Unit #168R30-039-26726 | Enduring Resources, LLC | Rio ArribaBasin Dakota (Prorated Gas) | ActiveGas | 7,400 | Mar 29, 2001 | 27 | 19,699 |
| L M Barton #001C30-045-30567 | Enduring Resources, LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 4,750 | Feb 23, 2001 | 0 | 325 |
| New Mexico State Com DY #001A30-045-30556 | Enduring Resources, LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 4,966 | Feb 8, 2001 | 0 | 17,350 |
| Blanco Com #005B30-045-30505 | Enduring Resources, LLC | San JuanBlanco-Mesaverde (Prorated Gas) | ActiveGas | 4,771 | Feb 5, 2001 | 0 | 422 |
| LM Barton #001B30-045-30540 | Enduring Resources, LLC | San JuanBlanco-Mesaverde (Prorated Gas) | ActiveGas | 4,823 | Feb 1, 2001 | 0 | 24,418 |
| Burroughs Com B #004B30-045-30541 | Enduring Resources, LLC | San JuanBlanco-Mesaverde (Prorated Gas) | ActiveGas | 4,771 | Feb 1, 2001 | 0 | 4,412 |
| New Mexico Com #001B30-045-30542 | Enduring Resources, LLC | San JuanBlanco-Mesaverde (Prorated Gas) | ActiveGas | 4,810 | Feb 1, 2001 | 93 | 10,022 |