| Nevada Axn State #00230-005-63362 | IACX Production LLC only | ChavesFoor Ranch; Pre Permian (Gas) | ActiveGas | 6,150 | Mar 31, 2001 | 0 | 15,218 |
| Quiniela Axq State #00130-005-63363 | EOG y Resources, Inc. only | ChavesFoor Ranch; Pre Permian (Gas) | PluggedGas | 5,950 | Mar 31, 2001 | 0 | 0 |
| Quiniela Axq State #00230-005-63364 | EOG Resources Inc only | ChavesFoor Ranch; Wolfcamp (Gas) | PluggedGas | 5,975 | Mar 31, 2001 | 0 | 0 |
| Handicapper Awi State #00230-005-63359 | EOG Resources Inc only | ChavesPecos Slope; Abo (Gas) | PluggedGas | 6,100 | Mar 21, 2001 | 0 | 0 |
| Keno Awk State #00130-005-63360 | IACX Production LLC only | ChavesPecos Slope; Abo (Gas) | ActiveGas | 6,300 | Mar 21, 2001 | 0 | 468 |
| State SE #00430-005-63342 | IACX Production LLC only | ChavesWildcat Foor Ranch; Penn | ActiveGas | 6,375 | Feb 26, 2001 | 0 | 5,207 |
| SK State #00130-005-63343 | Armstrong Energy Corp only | ChavesFoor Ranch; Pre Permian (Gas) | PluggedGas | 6,520 | Feb 26, 2001 | 0 | 0 |
| Sunfish State #00130-005-62781 | Armstrong Energy Corp only | ChavesFoor Ranch; Pre Permian (Gas) | PluggedGas | 6,782 | Jan 23, 2001 | 0 | 0 |
| Leontodon Ash Federal Com #00130-005-63324 | EOG Resources Inc only | ChavesFoor Ranch; Pre Permian (Gas) | PluggedOil | 6,508 | Dec 20, 2000 | 0 | 0 |
| Horizon Awh State #00130-005-63316 | EOG Resources Inc only | ChavesPecos Slope; Abo (Gas) | PluggedGas | 6,380 | Nov 27, 2000 | 0 | 0 |
| Jokers Awj State #00130-005-63317 | EOG y Resources, Inc. only | ChavesFoor Ranch; Pre Permian (Gas) | PluggedGas | 40 | Nov 27, 2000 | 0 | 0 |
| Keno Awk State #00230-005-63318 | IACX Production LLC only | ChavesPecos Slope; Abo (Gas) | ActiveGas | 5,050 | Nov 27, 2000 | 0 | 4,981 |
| Wager Awg State #00430-005-63306 | IACX Production LLC only | ChavesPecos Slope; Abo (Gas) | ActiveGas | 6,340 | Oct 30, 2000 | 0 | 9,448 |
| Hard AS Nails Amd State Com #00130-005-62553 | EOG y Resources, Inc. only | ChavesFoor Ranch; Wolfcamp (Gas) | PluggedGas | 5,100 | Oct 17, 2000 | 0 | 0 |
| Wager Awg State #001C30-005-63295 | EOG y Resources, Inc. only | ChavesWC D3; Pre-Cambrian | CanceledGas | 6,200 | Oct 16, 2000 | 0 | 0 |
| Wager Awg State Com #00330-005-63297 | IACX Production LLC only | ChavesFoor Ranch; Pre Permian (Gas) | ActiveGas | 6,225 | Oct 16, 2000 | 0 | 2,724 |
| Allied Aus State Com #00230-005-63287 | IACX Production LLC only | ChavesFoor Ranch; Pre Permian (Gas) | ActiveGas | 6,231 | Oct 3, 2000 | 0 | 5,533 |
| Getty PS 18 Federal #00430-005-63289 | Solis Partners, L.L.C. only | ChavesPecos Slope; Abo (Gas) | ActiveGas | 5,530 | Oct 2, 2000 | 0 | 7,843 |
| Ultra UA State Com #00230-005-63283 | IACX Production LLC only | ChavesFoor Ranch; Pre Permian (Gas) | ActiveGas | 6,210 | Sep 29, 2000 | 0 | 64,671 |
| Sandlewood Aew State #00230-005-63281 | IACX Production LLC only | ChavesPecos Slope; Abo (Gas) | ActiveGas | 6,920 | Sep 22, 2000 | 0 | 2,839 |
| McConkey HX #00430-005-62589 | IACX Production LLC only | ChavesFoor Ranch; Wolfcamp, Northwest | ActiveGas | 6,480 | Sep 20, 2000 | 0 | 7,808 |
| Witz VN State #005C30-005-63274 | EOG y Resources, Inc. only | ChavesFoor Ranch; Pre Permian (Gas) | CanceledGas | 6,650 | Aug 28, 2000 | 0 | 0 |
| Percentage Apr #00130-005-63269 | IACX Production LLC only | ChavesFoor Ranch; Pre-Permian, N. (G) | ActiveGas | 5,850 | Jul 25, 2000 | 0 | 16,321 |
| Vegas Avt State Com #00130-005-62539 | IACX Production LLC only | ChavesFoor Ranch; Pre Permian (Gas) | ActiveGas | 6,320 | Jul 11, 2000 | 0 | 3,156 |
| Vista Avs State #00130-005-63261 | EOG y Resources, Inc. only | ChavesFoor Ranch; Wolfcamp (Gas) | PluggedOil | 9,840 | Jul 11, 2000 | 0 | 0 |
| Avenue Avu State #00130-005-63259 | IACX Production LLC only | ChavesFoor Ranch; Wolfcamp, North (Gas) | ActiveGas | 6,187 | Jul 10, 2000 | 0 | 6,093 |
| Filaree Ael Federal #00430-005-63252 | IACX Production LLC only | ChavesFoor Ranch; Pre-Permian, NW (G) | ActiveGas | 6,500 | May 18, 2000 | 0 | 11,047 |
| Engwall RL Federal #00330-005-63244 | IACX Production LLC only | ChavesFoor Ranch; Pre Permian (Gas) | ActiveGas | 6,510 | Apr 4, 2000 | 0 | 0 |
| Dallas Aue State Com #00130-005-63237 | IACX Production LLC only | ChavesFoor Ranch; Wolfcamp (Gas) | ActiveGas | 6,450 | Feb 24, 2000 | 0 | 62,713 |
| Aurora Aur State #00130-005-63236 | IACX Production LLC only | ChavesFoor Ranch; Wolfcamp (Gas) | ActiveGas | 6,047 | Feb 22, 2000 | 0 | 3,948 |
| Witz VN State #00430-005-63234 | EOG y Resources, Inc. only | ChavesFoor Ranch; Pre Permian (Gas) | PluggedGas | 6,676 | Feb 10, 2000 | 0 | 0 |
| Jan State #00330-005-63178 | Onshore Royalties, LLC only | ChavesFoor Ranch; Pre Permian (Gas) | ActiveGas | 6,365 | Oct 9, 1998 | 0 | 1,681 |
| Jan State #00230-005-63090 | Onshore Royalties, LLC only | ChavesFoor Ranch; Pre Permian (Gas) | ActiveGas | 6,270 | May 24, 1996 | 0 | 161 |
| Smith Jr State Com #00130-005-60505 | IACX Production LLC only | ChavesFoor Ranch; Wolfcamp (Gas) | ActiveGas | 6,457 | May 1, 1993 | 0 | 9,301 |
| Rolla TC #00230-005-62822 | IACX Production LLC only | ChavesFoor Ranch; Pre Permian (Gas) | ActiveGas | 6,125 | Jun 1, 1992 | 0 | 3,214 |
| Jan State #00130-005-62763 | Armstrong Energy Corp only | ChavesFoor Ranch; Pre Permian (Gas) | PluggedGas | — | Jun 1, 1991 | 0 | 0 |
| Bittersweet Aoz State Com #00130-005-62756 | IACX Production LLC only | ChavesFoor Ranch; Wolfcamp, North (Gas) | ActiveGas | 6,158 | Nov 1, 1990 | 0 | 8,110 |
| South Dallas #00230-005-62746 | IACX Production LLC only | ChavesFoor Ranch; Wolfcamp (Gas) | ActiveGas | 6,200 | Dec 6, 1989 | 0 | 2,860 |
| Terra 35 State #00130-005-62653 | IACX Production LLC only | ChavesFoor Ranch; Pre Permian (Gas) | ActiveGas | 6,453 | Aug 1, 1989 | 0 | 58,690 |
| Eastland State #00430-005-62686 | M E W Enterprise only | ChavesFoor Ranch; Wolfcamp (Gas) | PluggedGas | 5,399 | Aug 1, 1989 | 0 | 0 |
| Sunny Side Ams St Com #00230-005-62683 | EOG y Resources, Inc. only | ChavesFoor Ranch; Wolfcamp (Gas) | PluggedGas | 6,570 | Jun 1, 1989 | 0 | 0 |
| Campbell Station Unit #00630-005-62680 | Onshore Royalties, LLC only | ChavesFoor Ranch; Pre Permian (Gas) | ActiveGas | 6,595 | May 1, 1989 | 0 | 6,970 |
| Energy Afy State #00130-005-62663 | EOG y Resources, Inc. only | ChavesFoor Ranch; Pre Permian (Gas) | PluggedGas | 6,086 | Apr 1, 1989 | 0 | 0 |
| Energy Afy State #00230-005-62668 | EOG Resources Inc only | ChavesFoor Ranch; Pre Permian (Gas) | PluggedGas | 6,450 | Apr 1, 1989 | 0 | 0 |
| WR State #00430-005-62652 | IACX Production LLC only | ChavesFoor Ranch; Pre Permian (Gas) | ActiveGas | — | Jan 1, 1989 | 0 | 22,029 |
| Ibis XU State Comm #00330-005-62642 | EOG y Resources, Inc. only | ChavesFoor Ranch; Pre Permian (Gas) | PluggedGas | 6,232 | Dec 1, 1988 | 0 | 0 |
| Desert Rose Als State #00330-005-62591 | IACX Production LLC only | ChavesFoor Ranch; Pre Permian (Gas) | ActiveGas | 6,200 | Oct 1, 1988 | 0 | 8,874 |
| Enron Aey State #00130-005-62595 | IACX Production LLC only | ChavesFoor Ranch; Wolfcamp (Gas) | ActiveGas | 6,300 | Oct 1, 1988 | 0 | 4,621 |
| Witz VN State #00330-005-62626 | IACX Production LLC only | ChavesFoor Ranch; Wolfcamp (Gas) | ActiveGas | 6,410 | Sep 1, 1988 | 0 | 473 |
| East Wind Ame State Com #00130-005-62554 | EOG y Resources, Inc. only | ChavesFoor Ranch; Pre Permian (Gas) | PluggedGas | 6,530 | Jun 1, 1988 | 0 | 0 |