| Four Mile Draw 21 State Com #001H30-015-37482 | Mewbourne Oil Co only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,173 | Jan 11, 2010 | 0 | 27,347 |
| Canadian Fed Com #001C30-015-36881 | EOG Resources Inc only | EddyFour Mile Draw; Wolfcamp(g) | CanceledGas | 8,505 | Dec 31, 2008 | 0 | 0 |
| Pembina B 33 Federal Com #002H30-015-36502 | Extex Operating Company only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,400 | Aug 4, 2008 | 0 | 10,673 |
| Bulldog 19 State #002H30-015-36303 | Extex Operating Company only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,680 | Apr 29, 2008 | 0 | 12,097 |
| Bow River 28 State #002H30-015-36243 | EOG Resources Inc only | EddyFour Mile Draw; Wolfcamp(g) | CanceledGas | 4,500 | Mar 31, 2008 | 0 | 0 |
| Bow River 28 State #001H30-015-36244 | EOG Resources Inc only | EddyFour Mile Draw; Wolfcamp(g) | CanceledGas | 4,500 | Mar 31, 2008 | 0 | 0 |
| Pembina a 33 State #002C30-015-36166 | Legacy Reserves Operating, LP only | EddyFour Mile Draw; Wolfcamp(g) | CanceledGas | 5,100 | Mar 14, 2008 | 0 | 0 |
| Pembina B 33 State Com #001I30-015-36189 | Legacy Reserves Operating, LP only | EddyFour Mile Draw; Wolfcamp(g) | CanceledGas | 5,200 | Mar 14, 2008 | 0 | 0 |
| Snake 31 State #002M30-015-36190 | Legacy Reserves Operating, LP only | EddyFour Mile Draw; Wolfcamp(g) | CanceledGas | 5,200 | Mar 14, 2008 | 0 | 0 |
| Snake 31 State #003N30-015-36191 | Legacy Reserves Operating, LP only | EddyFour Mile Draw; Wolfcamp(g) | CanceledGas | 5,200 | Mar 14, 2008 | 0 | 0 |
| Souris 29 State #002A30-015-36128 | Legacy Reserves Operating, LP only | EddyFour Mile Draw; Wolfcamp(g) | CanceledGas | 5,100 | Feb 20, 2008 | 0 | 0 |
| Pembina a 33 State #001H30-015-36129 | Extex Operating Company only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,267 | Feb 20, 2008 | 0 | 13,397 |
| Salmon a 32 State Com #001H30-015-35910 | Extex Operating Company only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,072 | Nov 9, 2007 | 0 | 14,019 |
| Salmon a 32 State Com #002C30-015-35911 | EOG Resources Inc only | EddyFour Mile Draw; Wolfcamp(g) | CanceledGas | 5,000 | Nov 9, 2007 | 0 | 0 |
| Salmon B 32 State #002H30-015-35912 | Extex Operating Company only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,115 | Nov 9, 2007 | 0 | 19,007 |
| Salmon B 32 State #001H30-015-35862 | Extex Operating Company only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,072 | Oct 15, 2007 | 0 | 10,607 |
| Big Dog State Unit #16230-015-35775 | Opal Operating Company LLC only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,289 | Aug 28, 2007 | 0 | 3,418 |
| Souris 29 State #001H30-015-35751 | Extex Operating Company only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,089 | Aug 6, 2007 | 0 | 15,378 |
| Big Dog State Unit #211C30-015-35486 | Endeavor Energy Resources, LP only | EddyFour Mile Draw; Wolfcamp(g) | CanceledGas | 8,727 | Mar 27, 2007 | 0 | 0 |
| Big Dog State Unit #20230-015-35278 | Opal Operating Company LLC only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,199 | Dec 15, 2006 | 0 | 4,179 |
| Big Dog State Unit #20130-015-35279 | Opal Operating Company LLC only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,123 | Dec 15, 2006 | 0 | 5,149 |
| 1823 Federal Com #181HZ30-015-35227 | Opal Operating Company LLC only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 7,976 | Nov 3, 2006 | 0 | 3,275 |
| Nino State #00130-015-35128 | Mack Energy Corp only | EddyFour Mile Draw; Wolfcamp(g) | CanceledGas | 8,200 | Aug 31, 2006 | 0 | 0 |
| Tank State #001C30-015-35061 | Mack Energy Corp only | EddyFour Mile Draw; Wolfcamp(g) | CanceledGas | 8,200 | Aug 4, 2006 | 0 | 0 |
| Chief State #001HZ30-015-35011 | Mack Energy Corp only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,266 | Jul 19, 2006 | 0 | 20,729 |
| Fuzzy State #00130-015-34933 | Mack Energy Corp only | EddyFour Mile Draw; Wolfcamp, SW (G) | ActiveGas | 8,126 | Jun 13, 2006 | 0 | 14,230 |
| State 1823 #30130-015-34923 | Opal Operating Company LLC only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,246 | Jun 12, 2006 | 0 | 4,403 |
| Snake State #002C30-015-34932 | EOG Resources Inc only | EddyFour Mile Draw; Wolfcamp(g) | CanceledGas | 8,139 | Jun 12, 2006 | 0 | 0 |
| Chatter Box 1823-19 State Com #00130-015-34917 | Amalgamated Sludge NM, LLC only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,865 | Jun 8, 2006 | 0 | 0 |
| State 1823 #29130-015-34911 | Opal Operating Company LLC only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,230 | Jun 7, 2006 | 0 | 3,723 |
| Ice Box 1823-30 St Com #00130-015-34885 | Amalgamated Sludge NM, LLC only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,500 | May 19, 2006 | 0 | 0 |
| Hackberry State #00130-015-34803 | 3R Operating, LLC only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,110 | Apr 21, 2006 | 0 | 7,973 |
| Walrus State #00130-015-33508 | Extex Operating Company only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 6,560 | Jul 16, 2004 | 0 | 396 |
| Bow Federal Com #001HHZ30-015-20590 | Extex Operating Company only | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,330 | — | 0 | 8,760 |