| Carracas 30B #013RHZ30-039-30602 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 7,460 | Apr 1, 2009 | 0 | 1,010 |
| Carracas 31B #016HHZ30-039-30701 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 7,867 | Apr 1, 2009 | 0 | 52,378 |
| Carracas 15A #011HZ30-039-30469 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 8,202 | Mar 20, 2009 | 0 | 40,765 |
| Carracas 18 B #003HZ30-039-30606 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 7,882 | Mar 20, 2009 | 0 | 70,910 |
| Arboles 20 a #010HZ30-039-30291 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 9,100 | Mar 9, 2009 | 0 | 53,021 |
| Carracas 16B #001HZ30-039-30465 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 6,947 | Mar 9, 2009 | 0 | 55,834 |
| Carson #408HHZ30-039-30555 | MorningStar Operating LLC | Rio ArribaBlanco Pictured Cliffs, East (Gas) | ActiveGas | 9,633 | Mar 9, 2009 | 67 | 303,996 |
| Navajo 1 #001M30-045-34919 | MorningStar Operating LLC | San JuanBlanco-Mesaverde (Prorated Gas) | ActiveGas | 6,836 | Mar 9, 2009 | 386 | 13,509 |
| Carracas 17B #003HZ30-039-30467 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 8,263 | Jan 8, 2009 | 0 | 76,368 |
| Bloomfield #003RHZ30-045-34812 | MorningStar Operating LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,111 | Nov 18, 2008 | 0 | 45,024 |
| Carracas 18 B #001HZ30-039-30483 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 7,856 | Oct 24, 2008 | 0 | 100,904 |
| Carracas 32B #007HHZ30-039-30528 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 8,019 | Oct 24, 2008 | 0 | 26,946 |
| Quintana Mesa Com #100RHZ30-039-30552 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 8,088 | Sep 3, 2008 | 0 | 71,878 |
| Carracas 21A #001HZ30-039-30167 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 7,080 | Aug 28, 2008 | 0 | 113,170 |
| Carracas 21B #001HZ30-039-30473 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 8,119 | Aug 28, 2008 | 0 | 54,553 |
| Carracas Unit 33B #002HZ30-039-30550 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 7,465 | Aug 28, 2008 | 0 | 49,869 |
| San Juan 32 5 Unit NP #021HZ30-039-30534 | MorningStar Operating LLC | Rio ArribaBlanco-Mesaverde (Prorated Gas) | ActiveGas | 9,869 | Aug 12, 2008 | 0 | 17,461 |
| San Juan 32 5 Unit #110SHZ30-039-30558 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 6,667 | Aug 5, 2008 | 0 | 59,430 |
| Carracas Unit #016HZ30-039-30468 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 7,420 | Aug 1, 2008 | 0 | 39,928 |
| Atlantic a #211R30-045-34707 | MorningStar Operating LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,955 | Jul 17, 2008 | 0 | 16,001 |
| Carracas 21B #016HZ30-039-30466 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 7,190 | Jul 2, 2008 | 0 | 25,966 |
| Carracas 22A #004HZ30-039-30482 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 6,706 | Jul 2, 2008 | 0 | 1,698 |
| San Juan 32 5 Unit Com #115HZ30-039-30546 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 9,634 | Jul 2, 2008 | 0 | 94,888 |
| Carracas 35A #016HZ30-039-30138 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 6,076 | Jun 3, 2008 | 0 | 36,881 |
| Phillips #003F30-045-34666 | MorningStar Operating LLC | San JuanBasin Dakota (Prorated Gas) | ActiveGas | 9,830 | Apr 25, 2008 | 67 | 3,656 |
| Central Vacuum Unit #23830-025-38849 | MorningStar Operating LLC | LeaVacuum; Grayburg-San Andres | ActiveInjection | 5,210 | Apr 14, 2008 | 0 | 0 |
| Carracas Unit #013HZ30-039-30141 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 7,792 | Apr 4, 2008 | 0 | 29,355 |
| Carson #203SHZ30-039-30281 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 5,542 | Apr 4, 2008 | 0 | 2,475 |
| Carson #204HZ30-039-30292 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 7,168 | Mar 20, 2008 | 0 | 44,851 |
| Vacuum Grayburg San Andres Unit #40530-025-38783 | MorningStar Operating LLC | LeaVacuum; Grayburg-San Andres | ActiveOil | 999 | Feb 29, 2008 | 10,746 | 33,101 |
| Vacuum Grayburg San Andres Unit #43830-025-38785 | MorningStar Operating LLC | LeaVacuum; Grayburg-San Andres | ActiveInjection | 5,020 | Feb 29, 2008 | 0 | 0 |
| Vacuum Grayburg San Andres Unit #43930-025-38786 | MorningStar Operating LLC | LeaVacuum; Grayburg-San Andres | ActiveInjection | 5,156 | Feb 29, 2008 | 0 | 0 |
| Vacuum Grayburg San Andres Unit #44030-025-38787 | MorningStar Operating LLC | LeaVacuum; Grayburg-San Andres | ActiveInjection | 5,020 | Feb 29, 2008 | 0 | 0 |
| Vacuum Grayburg San Andres Unit #44130-025-38788 | MorningStar Operating LLC | LeaVacuum; Grayburg-San Andres | ActiveInjection | 5,007 | Feb 29, 2008 | 0 | 0 |
| Carracas 17B #001HZ30-039-30472 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 8,556 | Jan 18, 2008 | 0 | 84,961 |
| Burrell 29-9-3 #00230-045-34554 | MorningStar Operating LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,515 | Jan 18, 2008 | 0 | 40,498 |
| Central Vacuum Unit #45530-025-38637 | MorningStar Operating LLC | LeaVacuum; Grayburg-San Andres | ActiveInjection | 5,320 | Dec 12, 2007 | 0 | 0 |
| Central Vacuum Unit #45630-025-38638 | MorningStar Operating LLC | LeaVacuum; Grayburg-San Andres | ActiveInjection | 5,010 | Dec 12, 2007 | 0 | 0 |
| Central Vacuum Unit #45730-025-38639 | MorningStar Operating LLC | LeaVacuum; Grayburg-San Andres | ActiveInjection | 5,026 | Dec 12, 2007 | 0 | 0 |
| Central Vacuum Unit #45830-025-38640 | MorningStar Operating LLC | LeaVacuum; Grayburg-San Andres | ActiveInjection | 5,035 | Dec 12, 2007 | 0 | 0 |
| Central Vacuum Unit #45930-025-38641 | MorningStar Operating LLC | LeaVacuum; Grayburg-San Andres | ActiveInjection | 5,005 | Dec 12, 2007 | 0 | 0 |
| Vacuum Grayburg San Andres Unit #22830-025-38628 | MorningStar Operating LLC | LeaVacuum; Grayburg-San Andres | ActiveOil | 5,013 | Dec 11, 2007 | 1,135 | 9,973 |
| Vacuum Grayburg San Andres Unit #32730-025-38627 | MorningStar Operating LLC | LeaVacuum; Grayburg-San Andres | ActiveOil | 4,866 | Dec 10, 2007 | 5,048 | 120,631 |
| Vacuum Grayburg San Andres Unit #13730-025-38554 | MorningStar Operating LLC | LeaVacuum; Grayburg-San Andres | ActiveOil | 5,030 | Sep 19, 2007 | 2,613 | 685 |
| Vacuum Grayburg San Andres Unit #14530-025-38555 | MorningStar Operating LLC | LeaVacuum; Grayburg-San Andres | ActiveInjection | 5,006 | Sep 19, 2007 | 0 | 0 |
| Carracas 10A #005HZ30-039-30135 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 6,859 | Aug 31, 2007 | 0 | 4,273 |
| Carracas 11A #003HZ30-039-30136 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 8,417 | Aug 31, 2007 | 0 | 68,327 |
| San Juan 32 5 Unit #116SHZ30-039-30337 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 6,414 | Aug 31, 2007 | 0 | 63,314 |
| Carson #201SHZ30-039-30239 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 5,760 | Aug 29, 2007 | 0 | 88,829 |
| Carracas 29B #009HZ30-039-30139 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 6,160 | Aug 28, 2007 | 0 | 22,704 |