| Carracas 27B #001H30-039-30906 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | PermittedGas | 9,975 | Jun 11, 2010 | 0 | 0 |
| Carracas 36A #016H30-039-30843 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | PermittedGas | 8,156 | May 14, 2010 | 0 | 0 |
| Carracas 31B #012HHZ30-039-30823 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 10,034 | May 13, 2010 | 0 | 100,476 |
| Carracas 14B #002HHZ30-039-30962 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | PluggedGas | 6,004 | May 13, 2010 | 0 | 0 |
| San Juan 32 5 Unit #012HHZ30-039-30553 | MorningStar Operating LLC | Rio ArribaBlanco-Mesaverde (Prorated Gas) | ActiveGas | 9,375 | Apr 30, 2010 | 0 | 6,113 |
| Carracas 25A #007H30-039-30852 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | PermittedGas | 11,270 | Apr 5, 2010 | 0 | 0 |
| Carracas 30B #006HHZ30-039-30905 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 10,167 | Apr 5, 2010 | 0 | 70,664 |
| Carracas Unit FR #119HZ30-039-30844 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 8,346 | Mar 3, 2010 | 0 | 76,850 |
| San Juan 30 4 Unit #058HHZ30-039-30681 | MorningStar Operating LLC | Rio ArribaBlanco Pictured Cliffs, East (Gas) | ActiveGas | 8,507 | Feb 25, 2010 | 0 | 65,168 |
| Carracas 16A #001HHZ30-039-30824 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 7,530 | Feb 12, 2010 | 0 | 153,821 |
| Carracas 12A #001HHZ30-039-30825 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 7,940 | Feb 12, 2010 | 0 | 80,792 |
| Carracas 12A #002HHZ30-039-30826 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 9,161 | Feb 12, 2010 | 0 | 103,751 |
| Carracas 15A #004H30-039-30846 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 8,200 | Feb 12, 2010 | 0 | 147,093 |
| Carracas 16A #002HHZ30-039-30822 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 9,382 | Dec 7, 2009 | 0 | 34,671 |
| Carracas 10B #014HHZ30-039-30840 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 6,530 | Nov 13, 2009 | 0 | 37,636 |
| Federal 29 9 28 #00430-045-34995 | MorningStar Operating LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,402 | Nov 13, 2009 | 0 | 23,622 |
| Carracas 9B #016HHZ30-039-30821 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 7,037 | Oct 27, 2009 | 0 | 73,191 |
| Federal 29 9 28 #005HZ30-045-34998 | MorningStar Operating LLC | San JuanBasin Fruitland Coal (Gas) | ActiveGas | 2,525 | Aug 14, 2009 | 0 | 32,075 |
| Carracas 16B #01530-039-30464 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | PermittedGas | 6,393 | Jun 10, 2009 | 0 | 0 |
| San Juan 32 5 Unit #112SHZ30-039-30616 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 9,783 | Apr 24, 2009 | 0 | 129,772 |
| Carracas 36A #013HZ30-039-30674 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | ActiveGas | 6,486 | Apr 16, 2009 | 0 | 40,340 |
| Carson #30130-039-30676 | MorningStar Operating LLC | Rio ArribaBasin Fruitland Coal (Gas) | PermittedGas | 9,058 | Apr 16, 2009 | 0 | 0 |
| 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 JuanBasin Dakota (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 |