| State Com 1625 #20130-015-34365 | Opal Operating Company LLC | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,452 | Sep 30, 2005 | 0 | 4,106 |
| Messina BHN Com #00130-025-37468 | Opal Operating Company LLC | LeaRanger Lake; Morrow, South (Gas) | ActiveGas | 13,232 | Sep 28, 2005 | 0 | 3,055 |
| Willie BNW State #00430-025-37469 | Opal Operating Company LLC | LeaRanger Lake; Atoka, North (Gas) | ActiveGas | 12,830 | Sep 28, 2005 | 0 | 0 |
| Federal Com 1725 #06130-015-34340 | Opal Operating Company LLC | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,618 | Sep 14, 2005 | 0 | 4,408 |
| 1625 Federal Com #311H30-015-34313 | Opal Operating Company LLC | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,725 | Aug 24, 2005 | 0 | 7,713 |
| Lacy J Boc State Com #00530-025-37422 | Opal Operating Company LLC | LeaBagley; Morrow, East (Gas) | ActiveGas | 12,414 | Aug 19, 2005 | 0 | 66 |
| Kincaid 1724 #11130-015-34248 | Opal Operating Company LLC | EddyCollins Ranch; Wolfcamp (Gas) | ActiveGas | 8,979 | Jul 29, 2005 | 0 | 23,894 |
| State Com 1625 #28130-015-34249 | Opal Operating Company LLC | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,755 | Jul 29, 2005 | 0 | 10,203 |
| Werner 1625 #23130-015-34156 | Opal Operating Company LLC | EddyCottonwood Creek; WC, East (Gas) | ActiveGas | 8,808 | Jun 20, 2005 | 0 | 4,279 |
| State 1625 #22130-015-34155 | Opal Operating Company LLC | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,838 | Jun 14, 2005 | 0 | 3,271 |
| Sand Springs Asu State #00530-025-37265 | Opal Operating Company LLC | LeaSand Springs; Atoka-Morrow (Gas) | ActiveGas | 12,460 | May 31, 2005 | 0 | 600 |
| Fed-Com 1625 #27130-015-34195 | Opal Operating Company LLC | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveOil | 9,212 | May 3, 2005 | 0 | 4,149 |
| Lacy J Biz State #00330-025-37115 | Opal Operating Company LLC | LeaBagley; Morrow, East (Gas) | ActiveGas | 12,520 | Mar 7, 2005 | 0 | 2,586 |
| Limbaugh Ayo State #00230-025-37111 | Opal Operating Company LLC | LeaRanger Lake; Atoka, North (Gas) | ActiveGas | 12,774 | Mar 3, 2005 | 11 | 6,871 |
| Lacy Ble State Com #00430-025-37112 | Opal Operating Company LLC | LeaBagley; Morrow, East (Gas) | ActiveGas | 12,550 | Mar 3, 2005 | 0 | 1,459 |
| Gosden Bgi State #00130-025-37077 | Opal Operating Company LLC | LeaX-4 Ranch; Morrow, West (Gas) | ActiveGas | 11,942 | Feb 2, 2005 | 0 | 0 |
| Faron Bpo State Com #00130-025-37075 | Opal Operating Company LLC | LeaButton Mesa; Strawn (Gas) | ActiveGas | 11,377 | Feb 1, 2005 | 0 | 5,239 |
| Mescalero Arl State #00230-025-37039 | Opal Operating Company LLC | LeaMescalero; Upper Penn, North | ActiveGas | 10,470 | Jan 12, 2005 | 2,915 | 15,686 |
| Boots Boo State Com #00130-025-36940 | Opal Operating Company LLC | LeaSand Springs; Atoka-Morrow (Gas) | ActiveGas | 12,960 | Nov 15, 2004 | 0 | 0 |
| Azure Bne State Com #00130-025-36916 | Opal Operating Company LLC | LeaRanger Lake; Atoka, North (Gas) | ActiveGas | 12,828 | Oct 18, 2004 | 0 | 2,281 |
| Empanada 31 State #00130-025-36842 | Opal Operating Company LLC | LeaRanger Lake; LWR Miss Lime, South (G | ActiveGas | 13,750 | Sep 2, 2004 | 53 | 12,259 |
| Empanada 6 Federal Com #00130-025-36919 | Opal Operating Company LLC | LeaRanger Lake; Austin, South (Gas) | ActiveOil | 13,200 | Aug 23, 2004 | 117 | 36,711 |
| State 1625 #291HHZ30-015-33567 | Opal Operating Company LLC | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 4,907 | Aug 20, 2004 | 0 | 596 |
| Orbison Bom State Com #00130-025-36816 | Opal Operating Company LLC | LeaFour Lakes; Austin, South (Gas) | ActiveGas | 12,550 | Aug 12, 2004 | 0 | 3,514 |
| 1625 Federal Com #32130-015-33614 | Opal Operating Company LLC | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,285 | Aug 6, 2004 | 0 | 2,107 |
| Lacy J Bik State Com #00230-025-36790 | Opal Operating Company LLC | LeaBagley; Morrow, East (Gas) | ActiveGas | 12,660 | Aug 2, 2004 | 0 | 14,405 |
| Lefty Bev State Com #00130-025-36763 | Opal Operating Company LLC | LeaBagley; Morrow, East (Gas) | ActiveGas | 12,443 | Jul 16, 2004 | 0 | 4,406 |
| Oakridge Bil State Com #00230-025-36750 | Opal Operating Company LLC | LeaEight Mile Draw; Morrow NW (Gas) | ActiveGas | 12,650 | Jul 7, 2004 | 0 | 559 |
| Willie BNW State Com #00330-025-36684 | Opal Operating Company LLC | LeaFour Lakes; Morrow (Gas) | ActiveGas | 12,848 | Apr 27, 2004 | 0 | 2,291 |
| Waylon BLX State Com #00430-025-36677 | Opal Operating Company LLC | LeaEight Mile Draw; Morrow NW (Gas) | ActiveGas | 12,626 | Apr 15, 2004 | 0 | 2,619 |
| Lacy J Bib State Com #00130-025-36639 | Opal Operating Company LLC | LeaBagley; Atoka, East (Gas) | ActiveGas | 12,515 | Mar 22, 2004 | 0 | 3,193 |
| Waylon BLZ State Com #00330-025-36580 | Opal Operating Company LLC | LeaEight Mile Draw; Morrow NW (Gas) | ActiveGas | 12,390 | Feb 18, 2004 | 0 | 6,217 |
| Willie BNV State Com #00130-025-36525 | Opal Operating Company LLC | LeaFour Lakes; Morrow (Gas) | ActiveGas | 12,726 | Jan 8, 2004 | 0 | 2,142 |
| Reba BNS State Com #00130-025-36527 | Opal Operating Company LLC | LeaFour Lakes; Mississippian (Gas) | ActiveGas | 12,820 | Jan 8, 2004 | 1 | 6,417 |
| Lagarto Amz State #00230-025-36523 | Opal Operating Company LLC | LeaSand Springs; Atoka-Morrow (Gas) | ActiveGas | 12,700 | Jan 7, 2004 | 0 | 24,075 |
| Thames 31 Federal #00130-015-33139 | Opal Operating Company LLC | EddyCottonwood Creek; Wolfcamp (Gas) | ActiveGas | 8,345 | Dec 10, 2003 | 0 | 8,721 |
| State 1724 #31130-015-33053 | Opal Operating Company LLC | EddyGopher; Wolfcamp (G) | ActiveGas | 4,565 | Oct 17, 2003 | 0 | 5,323 |
| State 1624 #29130-015-33055 | Opal Operating Company LLC | EddyEagle Creek; Wolfcamp Gas | ActiveGas | 7,305 | Oct 17, 2003 | 0 | 3,400 |
| Waylon BLX State Com #00230-025-36320 | Opal Operating Company LLC | LeaEight Mile Draw; Morrow NW (Gas) | ActiveGas | 12,560 | Jul 8, 2003 | 203 | 43,543 |
| Twain BCW State #00130-025-36258 | Opal Operating Company LLC | LeaSand Springs; Atoka-Morrow (Gas) | ActiveGas | 12,590 | Apr 22, 2003 | 0 | 9,605 |
| Cowdrey BBQ State #00130-005-20650 | Opal Operating Company LLC | ChavesWildcat S093111E; Canyon (Gas) | ActiveGas | 10,835 | Jan 30, 2003 | 0 | 176 |
| Ray BBR State #00130-025-02674 | Opal Operating Company LLC | LeaDempster Mill; Atoka (Gas) | ActiveGas | 13,833 | Nov 1, 2002 | 0 | 4,789 |
| Mocha Aql State #00130-025-35761 | Opal Operating Company LLC | LeaRanger Lake; Morrow, South (Gas) | ActiveGas | 13,000 | Nov 16, 2001 | 0 | 3,731 |
| Tres Canal Bal State #00130-005-21162 | Opal Operating Company LLC | ChavesTobac; Upper Penn | ActiveGas | 11,630 | Jul 7, 2000 | 2,424 | 4,904 |
| Indigo BHB State #00130-025-34991 | Opal Operating Company LLC | LeaFour Lakes; Morrow (Gas) | ActiveGas | 13,440 | Mar 27, 2000 | 12 | 677 |
| Blitzen Aub State #00230-025-34859 | Opal Operating Company LLC | LeaEight Mile Draw; Morrow NW (Gas) | ActiveOil | 14,232 | Jan 20, 2000 | 5 | 9,625 |
| Donner Auh State #00130-025-34860 | Opal Operating Company LLC | LeaEight Mile Draw; Abo | ActiveGas | 12,722 | Jan 20, 2000 | 477 | 0 |
| Sand Springs Asu State #00330-025-34861 | Opal Operating Company LLC | LeaSand Springs; Atoka-Morrow (Gas) | ActiveGas | 13,184 | Jan 20, 2000 | 0 | 3,519 |
| East Sand Springs Bfy State #00230-025-34862 | Opal Operating Company LLC | LeaEight Mile Draw; Morrow (Gas) | ActiveGas | 13,196 | Jan 20, 2000 | 0 | 3,612 |
| Sand Springs Asu State #00430-025-34899 | Opal Operating Company LLC | LeaSand Springs; Atoka-Morrow (Gas) | ActiveOil | 14,227 | Jan 14, 2000 | 0 | 7,258 |