| Andrew Arnquist Estate #00530-015-41894 | Extex Operating Company | EddyPenasco Draw; SA-Yeso (Assoc) | ActiveOil | 3,005 | Dec 19, 2013 | 0 | 0 |
| Pembina B 33 Federal Com #002H30-015-36502 | Extex Operating Company | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,400 | Aug 4, 2008 | 0 | 10,673 |
| Bulldog 19 State #002H30-015-36303 | Extex Operating Company | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,680 | Apr 29, 2008 | 0 | 12,097 |
| Pembina a 33 State #001H30-015-36129 | Extex Operating Company | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,267 | Feb 20, 2008 | 0 | 13,397 |
| Llano 1 Federal #001H30-015-36059 | Extex Operating Company | EddyRio Penasco; Wolfcamp (G) | ActiveGas | 8,440 | Jan 18, 2008 | 0 | 4,925 |
| Llano 1 Federal #002H30-015-36060 | Extex Operating Company | EddyRio Penasco; Wolfcamp (G) | ActiveGas | 8,742 | Jan 18, 2008 | 0 | 6,144 |
| Salmon a 32 State Com #001H30-015-35910 | Extex Operating Company | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,072 | Nov 9, 2007 | 0 | 14,019 |
| Salmon B 32 State #002H30-015-35912 | Extex Operating Company | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,115 | Nov 9, 2007 | 0 | 19,007 |
| Yellowstone 23 State Com #002H30-015-35884 | Extex Operating Company | EddyFour Mile Draw; Wolfcamp, SW (G) | ActiveGas | 7,600 | Oct 26, 2007 | 0 | 1,398 |
| Salmon B 32 State #001H30-015-35862 | Extex Operating Company | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,072 | Oct 15, 2007 | 0 | 10,607 |
| Klamath a 26 State Com #001H30-015-35825 | Extex Operating Company | EddyFour Mile Draw; Wolfcamp, SW (G) | ActiveGas | 8,277 | Sep 21, 2007 | 0 | 6,712 |
| Souris 29 State #001H30-015-35751 | Extex Operating Company | EddyFour Mile Draw; Wolfcamp(g) | ActiveGas | 8,089 | Aug 6, 2007 | 0 | 15,378 |
| Trinity B 28 State #001H30-015-35683 | Extex Operating Company | EddyCollins Ranch; Wolfcamp (Gas) | ActiveGas | 8,455 | Jun 26, 2007 | 0 | 1,552 |
| Trinity B 28 State #002H30-015-35684 | Extex Operating Company | EddyCollins Ranch; Wolfcamp (Gas) | ActiveGas | 8,570 | Jun 26, 2007 | 0 | 16,537 |
| Trinity a 28 State #001H30-015-35680 | Extex Operating Company | EddyCollins Ranch; Wolfcamp (Gas) | ActiveGas | 8,550 | Jun 20, 2007 | 0 | 7,324 |
| Yangtze C 3 Fee #001H30-015-35667 | Extex Operating Company | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,995 | Jun 18, 2007 | 0 | 1,832 |
| Trinity a 28 State #002H30-015-35659 | Extex Operating Company | EddyCollins Ranch; Wolfcamp (Gas) | ActiveGas | 8,500 | Jun 8, 2007 | 0 | 6,384 |
| PO B 1 Fee #01HY30-015-35650 | Extex Operating Company | EddyCottonwood Creek; WC, West (Gas) | ActiveGas | 8,234 | Jun 7, 2007 | 0 | 1 |
| Seine B 6 Fee #001H30-015-35611 | Extex Operating Company | EddyCottonwood Creek; WC, West (Gas) | ActiveGas | 8,622 | May 16, 2007 | 0 | 1,004 |
| Seine B 6 Fee #002H30-015-35612 | Extex Operating Company | EddyCottonwood Creek; WC, West (Gas) | ActiveGas | 7,703 | May 16, 2007 | 0 | 3,433 |
| Midnight Matador a #00230-015-35619 | Extex Operating Company | EddyRed Lake; Queen-Grayburg-SA | ActiveOil | 2,505 | May 14, 2007 | 600 | 10,816 |
| Midnight Matador a #00530-015-35620 | Extex Operating Company | EddyRed Lake; Queen-Grayburg-SA | ActiveOil | 2,510 | May 14, 2007 | 0 | 3 |
| Midnight Matador a #3 #00330-015-35697 | Extex Operating Company | EddyRed Lake; Queen-Grayburg-SA | ActiveOil | 2,500 | May 14, 2007 | 0 | 3 |
| Midnight Matador #00930-015-35713 | Extex Operating Company | EddyRed Lake; Queen-Grayburg-SA | ActiveOil | 2,530 | May 14, 2007 | 0 | 3 |
| Ganges B 2 Fee #001H30-015-35488 | Extex Operating Company | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,460 | Mar 23, 2007 | 0 | 563 |
| Tiber a 5 Fee #001H30-015-35467 | Extex Operating Company | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,732 | Mar 7, 2007 | 0 | 7,673 |
| Meramec C 4 Fee #001H30-015-35406 | Extex Operating Company | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,460 | Jan 29, 2007 | 0 | 5,121 |
| Meramec a 4 Fee #001H30-015-35380 | Extex Operating Company | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,240 | Jan 19, 2007 | 0 | 3,097 |
| Meramec B 4 Fee #002H30-015-35381 | Extex Operating Company | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,432 | Jan 19, 2007 | 0 | 474 |
| Meramec B 4 Fee #001H30-015-35382 | Extex Operating Company | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,430 | Jan 19, 2007 | 0 | 7,002 |
| Potomac a 9 Fee #001H30-015-35369 | Extex Operating Company | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,950 | Jan 18, 2007 | 0 | 6,619 |
| Yangtze B 3 Fee #001H30-015-35327 | Extex Operating Company | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,597 | Dec 28, 2006 | 0 | 194 |
| Yangtze C 3 Fee #002H30-015-35328 | Extex Operating Company | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,789 | Dec 28, 2006 | 0 | 676 |
| Zambesi B 12 Fee #001H30-015-35332 | Extex Operating Company | EddyCottonwood Creek; WC, East (Gas) | ActiveGas | 9,026 | Dec 28, 2006 | 0 | 103 |
| Midnight Matador #00730-015-35289 | Extex Operating Company | EddyRed Lake; Queen-Grayburg-SA | ActiveOil | 2,520 | Dec 20, 2006 | 0 | 3 |
| Potomac a 9 Fee #002H30-015-35281 | Extex Operating Company | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,545 | Dec 15, 2006 | 0 | 4,369 |
| Midnight Matador #00530-015-35264 | Extex Operating Company | EddyRed Lake; Queen-Grayburg-SA | ActiveOil | 2,515 | Dec 1, 2006 | 0 | 3 |
| Midnight Matador #00630-015-35240 | Extex Operating Company | EddyRed Lake; Queen-Grayburg-SA | ActiveOil | 2,515 | Nov 9, 2006 | 0 | 3 |
| Meramec C 4 Fee #002H30-015-35161 | Extex Operating Company | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,810 | Sep 26, 2006 | 0 | 7,382 |
| Seine a 6 Fee #00130-015-35106 | Extex Operating Company | EddyCottonwood Creek; WC, West (Gas) | ActiveGas | 8,745 | Aug 22, 2006 | 0 | 10,493 |
| PO a 1 Fee #001H30-015-35107 | Extex Operating Company | EddyCottonwood Creek; WC, West (Gas) | ActiveGas | 7,141 | Aug 22, 2006 | 0 | 6,196 |
| Hudson 15 Federal Com #002H30-015-35015 | Extex Operating Company | EddyCollins Ranch; Wolfcamp (Gas) | ActiveGas | 8,536 | Jul 10, 2006 | 0 | 6,161 |
| Tiber B 5 Fee #001H30-015-34989 | Extex Operating Company | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,802 | Jun 29, 2006 | 0 | 4,924 |
| Tiber B 5 Fee #002H30-015-34990 | Extex Operating Company | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 7,182 | Jun 29, 2006 | 0 | 4,132 |
| New 25 Federal #002HHZ30-015-34895 | Extex Operating Company | EddyCottonwood Creek; WC, West (Gas) | ActiveGas | 8,550 | May 23, 2006 | 0 | 13,471 |
| San Saba B 12 Fee #02HY30-015-34837 | Extex Operating Company | EddyCottonwood Creek; WC, West (Gas) | ActiveGas | 8,812 | May 5, 2006 | 0 | 7,041 |
| New 25 Federal #001H30-015-34842 | Extex Operating Company | EddyCottonwood Creek; WC, West (Gas) | ActiveGas | 8,592 | May 3, 2006 | 0 | 9,190 |
| Seine C 6 Fee #002H30-015-34800 | Extex Operating Company | EddyCottonwood Creek; WC, West (Gas) | ActiveGas | 8,825 | Apr 21, 2006 | 0 | 4,715 |
| Seine C 6 Fee #001H30-015-34801 | Extex Operating Company | EddyCottonwood Creek; WC, West (Gas) | ActiveGas | 8,500 | Apr 21, 2006 | 0 | 4,911 |
| PO B 1 Fee #002H30-015-34752 | Extex Operating Company | EddyCottonwood Creek; WC, West (Gas) | ActiveGas | 8,245 | Mar 30, 2006 | 0 | 85 |