| 513456 | Sep 10, 2001 | Sep 10, 2001 | Occidental Permian Ltd. | Andrews | Fullerton Clearfork Unit #276400338879 | 7,600 |
| 513455 | Sep 10, 2001 | Sep 10, 2001 | Occidental Permian Ltd. | Andrews | Fullerton Clearfork Unit #271500338880 | 7,600 |
| 513454 | Sep 10, 2001 | Sep 10, 2001 | Occidental Permian Ltd. | Andrews | Fullerton Clearfork Unit #256200338881 | 7,600 |
| 513105 | Sep 10, 2001 | Sep 10, 2001 | Occidental Permian Ltd. | Ector | Cowden, J. M. RA B #127H13535004 | 5,800 |
| 513349 | Sep 5, 2001 | Sep 5, 2001 | Occidental Permian Ltd. | Andrews | Fullerton Clearfork Unit #256400338875 | 7,600 |
| 513348 | Sep 5, 2001 | Sep 5, 2001 | Occidental Permian Ltd. | Andrews | Fullerton Clearfork Unit #261300338876 | 7,600 |
| 513235 | Aug 31, 2001 | Aug 31, 2001 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #110850134633 | 7,500 |
| 513029 | Aug 31, 2001 | Aug 31, 2001 | Occidental Permian Ltd. | Hale | Snead "B" #218930444 | 7,500 |
| 513160 | Aug 30, 2001 | Aug 30, 2001 | Occidental Permian Ltd. | Ector | South Foster Unit #20913538165 | 4,600 |
| 513159 | Aug 30, 2001 | Aug 30, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. 7 #813538152 | 4,600 |
| 513158 | Aug 30, 2001 | Aug 30, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. 7 #913538153 | 4,600 |
| 513157 | Aug 30, 2001 | Aug 30, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. 7 #1013538154 | 4,600 |
| 513156 | Aug 30, 2001 | Aug 30, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. 7 #1113538155 | 4,600 |
| 513155 | Aug 30, 2001 | Aug 30, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. 7 #1213538156 | 4,600 |
| 513154 | Aug 30, 2001 | Aug 30, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. 7 #1313538157 | 4,600 |
| 513153 | Aug 30, 2001 | Aug 30, 2001 | Occidental Permian Ltd. | Ector | Witcher J. E. 7 #1413538159 | 4,600 |
| 513153Amendment | Aug 30, 2001 | Aug 30, 2001 | Occidental Permian Ltd. | Ector | Witcher J. E. 7 #1413538159 | 4,600 |
| 513152 | Aug 30, 2001 | Aug 30, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. 7 #1513538158 | 4,600 |
| 513080 | Aug 30, 2001 | Aug 30, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Consolidated #32021936623 | 8,600 |
| 513078 | Aug 30, 2001 | Aug 30, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Consolidated #32121936622 | 8,600 |
| 513078Amendment | Aug 30, 2001 | Aug 30, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Consolidated #32121936622 | 8,600 |
| 512661 | Aug 30, 2001 | Aug 30, 2001 | Occidental Permian Ltd. | Yoakum | Wasson Odc Unit #69950134628 | 5,400 |
| 513058 | Aug 28, 2001 | Aug 28, 2001 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #250550134630 | 7,500 |
| 513058Amendment | Aug 28, 2001 | Aug 28, 2001 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #250550134630 | 7,500 |
| 513057 | Aug 28, 2001 | Aug 28, 2001 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #90550134631 | 7,500 |
| 513055 | Aug 28, 2001 | Aug 28, 2001 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #120250134632 | 7,500 |
| 513055Amendment | Aug 28, 2001 | Aug 28, 2001 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #120250134632 | 7,500 |
| 512922 | Aug 24, 2001 | Aug 24, 2001 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #250250134629 | 7,500 |
| 512882 | Aug 23, 2001 | Aug 23, 2001 | Occidental Permian Ltd. | Gaines | Denver Unit #661216500574 | 5,600 |
| 512881 | Aug 23, 2001 | Aug 23, 2001 | Occidental Permian Ltd. | Gaines | Denver Unit #660816500578 | 5,600 |
| 512880 | Aug 23, 2001 | Aug 23, 2001 | Occidental Permian Ltd. | Gaines | Denver Unit #771816532080 | 5,600 |
| 512879 | Aug 23, 2001 | Aug 23, 2001 | Occidental Permian Ltd. | Gaines | Denver Unit #762916530354 | 5,600 |
| 512878 | Aug 23, 2001 | Aug 23, 2001 | Occidental Permian Ltd. | Gaines | Denver Unit #680916500841 | 5,600 |
| 512877 | Aug 23, 2001 | Aug 23, 2001 | Occidental Permian Ltd. | Gaines | Denver Unit #675116533459 | 5,600 |
| 512876 | Aug 23, 2001 | Aug 23, 2001 | Occidental Permian Ltd. | Gaines | Denver Unit #675016533458 | 5,600 |
| 512875 | Aug 23, 2001 | Aug 23, 2001 | Occidental Permian Ltd. | Gaines | Denver Unit #661616500576 | 5,600 |
| 512874 | Aug 23, 2001 | Aug 23, 2001 | Occidental Permian Ltd. | Gaines | Denver Unit #662816530187 | 5,600 |
| 512873 | Aug 23, 2001 | Aug 23, 2001 | Occidental Permian Ltd. | Gaines | Denver Unit #663616530188 | 5,600 |
| 512872 | Aug 23, 2001 | Aug 23, 2001 | Occidental Permian Ltd. | Gaines | Denver Unit #670916500708 | 5,600 |
| 512871 | Aug 23, 2001 | Aug 23, 2001 | Occidental Permian Ltd. | Gaines | Denver Unit #671816530169 | 5,600 |
| 512870 | Aug 23, 2001 | Aug 23, 2001 | Occidental Permian Ltd. | Gaines | Denver Unit #672816530196 | 5,600 |
| 512791 | Aug 21, 2001 | Aug 21, 2001 | Occidental Permian Ltd. | Ector | South Foster Unit #20313538150 | 4,600 |
| 512790 | Aug 21, 2001 | Aug 21, 2001 | Occidental Permian Ltd. | Ector | South Foster Unit #20113538149 | 4,600 |
| 512789 | Aug 21, 2001 | Aug 21, 2001 | Occidental Permian Ltd. | Ector | South Foster Unit #20213538148 | 4,600 |
| 512660 | Aug 16, 2001 | Aug 16, 2001 | Occidental Permian Ltd. | Yoakum | Bennett Ranch Unit #424150134625 | 5,400 |
| 512659 | Aug 16, 2001 | Aug 16, 2001 | Occidental Permian Ltd. | Yoakum | Denver Unit #492750134627 | 5,500 |
| 512657 | Aug 16, 2001 | Aug 16, 2001 | Occidental Permian Ltd. | Hale | Irish #118930443 | 7,500 |
| 512545 | Aug 14, 2001 | Aug 14, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. PA #1713538147 | 4,600 |
| 512541 | Aug 14, 2001 | Aug 14, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. C #1013538146 | 4,600 |
| 510269 | Aug 9, 2001 | Aug 9, 2001 | Occidental Permian Ltd. | Yoakum | Denver Unit #5522GC50134624 | 5,500 |
| 508790 | Aug 9, 2001 | Aug 9, 2001 | Occidental Permian Ltd. | Gaines | Central Robertson Clearfork Unit #123916535743 | 7,250 |
| 508789 | Aug 9, 2001 | Aug 9, 2001 | Occidental Permian Ltd. | Gaines | Central Robertson Clearfork Unit #123816535740 | 7,250 |
| 512058 | Aug 6, 2001 | Aug 6, 2001 | Occidental Permian Ltd. | Terry | Brownfield Clay #144531969 | 8,100 |
| 512092 | Aug 1, 2001 | Aug 1, 2001 | Occidental Permian Ltd. | Ector | North Cowden Unit #154113538142 | 4,800 |
| 512092Amendment | Aug 1, 2001 | Aug 1, 2001 | Occidental Permian Ltd. | Ector | North Cowden Unit #154113538142 | 4,800 |
| 512091 | Aug 1, 2001 | Aug 1, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. #12513538144 | 4,600 |
| 512090 | Aug 1, 2001 | Aug 1, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. #12413538143 | 4,600 |
| 512032 | Jul 31, 2001 | Jul 31, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. #12313538141 | 4,600 |
| 512031 | Jul 31, 2001 | Jul 31, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. #12213538140 | 4,600 |
| 512030 | Jul 31, 2001 | Jul 31, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. #12113538139 | 4,600 |
| 512029 | Jul 31, 2001 | Jul 31, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. #12013538138 | 4,600 |
| 512028 | Jul 31, 2001 | Jul 31, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. #11913538137 | 4,600 |
| 512027 | Jul 31, 2001 | Jul 31, 2001 | Occidental Permian Ltd. | Ector | Witcher, J. E. #11813538136 | 4,600 |
| 511650 | Jul 31, 2001 | Jul 31, 2001 | Occidental Permian Ltd. | Crockett | Daniel, M. K. #61010538714 | 6,500 |
| 511606 | Jul 25, 2001 | Jul 25, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Estate Unit #214721936616 | 5,400 |
| 511782 | Jul 24, 2001 | Jul 24, 2001 | Occidental Permian Ltd. | Yoakum | Denver Unit #465450134608 | 5,500 |
| 511605 | Jul 24, 2001 | Jul 24, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Estate Unit #49421936615 | 5,400 |
| 511604 | Jul 24, 2001 | Jul 24, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Estate Unit #49521936614 | 5,400 |
| 511603 | Jul 24, 2001 | Jul 24, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Estate Unit #49621936613 | 5,400 |
| 511602 | Jul 24, 2001 | Jul 24, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Estate Unit #49721936612 | 5,400 |
| 511601 | Jul 24, 2001 | Jul 24, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Estate Unit #49821936711 | 5,400 |
| 511600 | Jul 24, 2001 | Jul 24, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Estate Unit #49921936712 | 5,400 |
| 511599 | Jul 24, 2001 | Jul 24, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Estate Unit #410021936713 | 5,400 |
| 511598 | Jul 24, 2001 | Jul 24, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Estate Unit #410121936608 | 5,400 |
| 511597 | Jul 24, 2001 | Jul 24, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Estate Unit #214621936607 | 5,400 |
| 511311 | Jul 20, 2001 | Jul 20, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Consolidated #22121936602 | 8,600 |
| 511309 | Jul 20, 2001 | Jul 20, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Consolidated #22321936600 | 8,600 |
| 511524 | Jul 18, 2001 | Jul 18, 2001 | Occidental Permian Ltd. | Hockley | Central Mallet Unit #38721936605 | 5,400 |
| 511450 | Jul 16, 2001 | Jul 16, 2001 | Occidental Permian Ltd. | Ector | Cowden, W. F. A #2613538121 | 5,800 |
| 511313 | Jul 13, 2001 | Jul 13, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Consolidated #21921936604 | 8,600 |
| 511312 | Jul 13, 2001 | Jul 13, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Consolidated #22021936603 | 8,600 |
| 511310 | Jul 13, 2001 | Jul 13, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Consolidated #22221936601 | 8,600 |
| 511308 | Jul 13, 2001 | Jul 13, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Consolidated #31921936599 | 8,600 |
| 511307 | Jul 13, 2001 | Jul 13, 2001 | Occidental Permian Ltd. | Hockley | Slaughter Consolidated #32221936598 | 8,600 |
| 511264 | Jul 12, 2001 | Jul 12, 2001 | Occidental Permian Ltd. | Hockley | Levelland Unit #115121936597 | 5,200 |
| 511263 | Jul 12, 2001 | Jul 12, 2001 | Occidental Permian Ltd. | Hockley | Levelland Unit #115021936596 | 5,200 |
| 511261 | Jul 11, 2001 | Jul 11, 2001 | Occidental Permian Ltd. | Hockley | Levelland Unit #114921936595 | 5,200 |
| 511260 | Jul 11, 2001 | Jul 11, 2001 | Occidental Permian Ltd. | Hockley | Levelland Unit #114821936594 | 5,200 |
| 511259 | Jul 11, 2001 | Jul 11, 2001 | Occidental Permian Ltd. | Hockley | Levelland Unit #114721936593 | 5,200 |
| 511120 | Jul 10, 2001 | Jul 10, 2001 | Occidental Permian Ltd. | Yoakum | Bennett Ranch Unit #433850134607 | 5,500 |
| 511119 | Jul 10, 2001 | Jul 10, 2001 | Occidental Permian Ltd. | Yoakum | Bennett Ranch Unit #433950134606 | 5,500 |
| 511118 | Jul 10, 2001 | Jul 10, 2001 | Occidental Permian Ltd. | Yoakum | Bennett Ranch Unit #434050134605 | 5,500 |
| 511117 | Jul 10, 2001 | Jul 10, 2001 | Occidental Permian Ltd. | Yoakum | Bennett Ranch Unit #434150134604 | 5,500 |
| 511116 | Jul 10, 2001 | Jul 10, 2001 | Occidental Permian Ltd. | Yoakum | Bennett Ranch Unit #434250134603 | 5,500 |
| 511115 | Jul 10, 2001 | Jul 10, 2001 | Occidental Permian Ltd. | Yoakum | Bennett Ranch Unit #434350134602 | 5,500 |
| 511114 | Jul 10, 2001 | Jul 10, 2001 | Occidental Permian Ltd. | Yoakum | Bennett Ranch Unit #434450134601 | 5,500 |
| 511144 | Jul 9, 2001 | Jul 9, 2001 | Occidental Permian Ltd. | Hale | Snead "B" #118930442 | 7,500 |
| 511144Amendment | Jul 9, 2001 | Jul 9, 2001 | Occidental Permian Ltd. | Hale | Snead "B" #1H18930442 | 7,500 |
| 511143 | Jul 9, 2001 | Jul 9, 2001 | Occidental Permian Ltd. | Hale | Myatt #118930439 | 7,500 |
| 511142 | Jul 9, 2001 | Jul 9, 2001 | Occidental Permian Ltd. | Hale | Myatt #218930440 | 7,500 |