| 723380 | Sep 2, 2011 | Sep 2, 2011 | Lewis Petro Properties, Inc. | Booth Unocal H #64UH | 17,000 | 47941472 |
| 723380Amendment | Sep 2, 2011 | Sep 2, 2011 | Lewis Petro Properties, Inc. | Booth Unocal H #64UH | 17,000 | 47941472 |
| 723193 | Sep 2, 2011 | Sep 2, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR1 #D 5HH | 9,000 | 47941470 |
| 723193Amendment | Sep 2, 2011 | Sep 2, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR1 #D 5HH | 9,000 | 47941470 |
| 723193Amendment | Sep 2, 2011 | Sep 2, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR1 #D 5HH | 9,000 | 47941470 |
| 722984 | Sep 1, 2011 | Sep 1, 2011 | SM Energy Company | Briscoe G GU4 State #18HH | 10,000 | 47941463 |
| 722984Amendment | Sep 1, 2011 | Sep 1, 2011 | SM Energy Company | Briscoe G GU4 State #18HH | 10,000 | 47941463 |
| 723207 | Aug 31, 2011 | Aug 31, 2011 | Killam Oil Co., Ltd. | Garcia #4702 | 2,100 | 47941466 |
| 723191 | Aug 31, 2011 | Aug 31, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #F 4HH | 9,000 | 47941468 |
| 723191Amendment | Aug 31, 2011 | Aug 31, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #F 4HH | 9,000 | 47941468 |
| 723190 | Aug 31, 2011 | Aug 31, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #F 3HH | 9,000 | 47941467 |
| 723190Amendment | Aug 31, 2011 | Aug 31, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #F 3HH | 9,000 | 47941467 |
| 723089 | Aug 29, 2011 | Aug 29, 2011 | Lewis Petro Properties, Inc. | Cotulla #6HH | 17,000 | 47941465 |
| 723089Amendment | Aug 29, 2011 | Aug 29, 2011 | Lewis Petro Properties, Inc. | Cotulla #6HH | 17,000 | 47941465 |
| 723088 | Aug 29, 2011 | Aug 29, 2011 | Lewis Petro Properties, Inc. | Huisache Cattle Co. B #5HH | 12,500 | 47941464 |
| 722950 | Aug 26, 2011 | Aug 26, 2011 | Columbus Energy, LLC | BMT #20QC | 2,200 | 47941456 |
| 722895 | Aug 26, 2011 | Aug 26, 2011 | Shell Western E&P | Piloncillo #D 10HLH | 15,000 | 47941461 |
| 722895Amendment | Aug 26, 2011 | Aug 26, 2011 | Shell Western E&P | Piloncillo #D 10HLH | 18,000 | 47941461 |
| 722895Amendment | Aug 26, 2011 | Aug 26, 2011 | Shell Western E&P | Piloncillo #D 10HLH | 18,000 | 47941461 |
| 722851 | Aug 25, 2011 | Aug 25, 2011 | Rosetta Resources Operating LP | Gates 05D #502H | 7,200 | 47941460 |
| 722848 | Aug 25, 2011 | Aug 25, 2011 | Rosetta Resources Operating LP | Gates 05D #402H | 7,200 | 47941459 |
| 722841 | Aug 25, 2011 | Aug 25, 2011 | Rosetta Resources Operating LP | Gates 05D #302H | 7,200 | 47941458 |
| 722683 | Aug 25, 2011 | Aug 25, 2011 | Shell Western E&P | Piloncillo #D 10HCH | 15,000 | 47941454 |
| 722683Amendment | Aug 25, 2011 | Aug 25, 2011 | Shell Western E&P | Piloncillo #D 10HCH | 18,000 | 47941454 |
| 722681 | Aug 25, 2011 | Aug 25, 2011 | Shell Western E&P | Piloncillo #D 10HBH | 15,000 | 47941453 |
| 722681Amendment | Aug 25, 2011 | Aug 25, 2011 | Shell Western E&P | Piloncillo #D 10HBH | 18,000 | 47941453 |
| 722755 | Aug 24, 2011 | Aug 24, 2011 | Killam Oil Co., Ltd. | Lenore #4 | 10,000 | 47941455 |
| 722703 | Aug 24, 2011 | Aug 24, 2011 | Lewis Petro Properties, Inc. | Slaughter #3HH | 12,500 | 47941457 |
| 722677 | Aug 24, 2011 | Aug 24, 2011 | Shell Western E&P | Piloncillo #D 10HAH | 15,000 | 47941452 |
| 722677Amendment | Aug 24, 2011 | Aug 24, 2011 | Shell Western E&P | Piloncillo #D 10HAH | 18,000 | 47941452 |
| 722371 | Aug 23, 2011 | Aug 23, 2011 | Shell Western E&P | Piloncillo #F 3HBH | 15,000 | 47941451 |
| 722343 | Aug 22, 2011 | Aug 22, 2011 | Escondido Resources II, LLC | Cerrito-Sanchez State Unit #19HH | 14,000 | 47941446 |
| 722343Amendment | Aug 22, 2011 | Aug 22, 2011 | Escondido Resources II, LLC | Cerrito-Sanchez State Unit #19HH | 14,000 | 47941446 |
| 722343Amendment | Aug 22, 2011 | Aug 22, 2011 | Escondido Resources II, LLC | Cerrito-Sanchez State Unit #19HH | 14,000 | 47941446 |
| 722376 | Aug 19, 2011 | Aug 19, 2011 | Shell Western E&P | Piloncillo #F 3HZH | 15,000 | 47941450 |
| 722375 | Aug 19, 2011 | Aug 19, 2011 | Shell Western E&P | Piloncillo #F 3HLH | 15,000 | 47941449 |
| 722369 | Aug 19, 2011 | Aug 19, 2011 | Shell Western E&P | Piloncillo #F 3HAH | 15,000 | 47941448 |
| 722363 | Aug 17, 2011 | Aug 17, 2011 | Lewis Petro Properties, Inc. | Zimmerhanzel #1HH | 17,000 | 47941447 |
| 722334 | Aug 17, 2011 | Aug 17, 2011 | Lewis Petro Properties, Inc. | Fasken-State 1559 #12HH | 17,000 | 47941445 |
| 722333 | Aug 17, 2011 | Aug 17, 2011 | Lewis Petro Properties, Inc. | Jackson Vestal #2HH | 12,500 | 47941443 |
| 722332 | Aug 17, 2011 | Aug 17, 2011 | Lewis Petro Properties, Inc. | Martin, R.J. #1 | 12,500 | 47941444 |
| 722221 | Aug 16, 2011 | Aug 16, 2011 | Laredo Energy | Lopez Gas Unit #1 | 11,000 | 47941442 |
| 722221Amendment | Aug 16, 2011 | Aug 16, 2011 | Laredo Energy | Lopez Gas Unit #1 | 11,000 | 47941442 |
| 721705 | Aug 15, 2011 | Aug 15, 2011 | Killam Oil Co., Ltd. | Puig 'C' #5 | 8,882 | 47939857 |
| 722115 | Aug 12, 2011 | Aug 12, 2011 | Killam Oil Co., Ltd. | Kha S3 #1 | 8,000 | 47941441 |
| 722037 | Aug 12, 2011 | Aug 12, 2011 | SM Energy Company | Neel #1HH | 12,000 | 47941440 |
| 722000 | Aug 12, 2011 | Aug 12, 2011 | Mohican Operating, L.L.C. | Bhe #2 | 9,600 | 47941439 |
| 721921 | Aug 12, 2011 | Aug 12, 2011 | Laredo Energy | Reuthinger #3HH | 8,700 | 47941438 |
| 721921Amendment | Aug 12, 2011 | Aug 12, 2011 | Laredo Energy | Reuthinger #3HH | 9,000 | 47941438 |
| 721656 | Aug 8, 2011 | Aug 8, 2011 | Anadarko E&P Company LP | Stanley Ranch #9HH | 9,750 | 47941437 |
| 721503 | Aug 5, 2011 | Aug 5, 2011 | Anadarko E&P Company LP | Stanley Ranch #8HH | 9,750 | 47941436 |
| 721503Amendment | Aug 5, 2011 | Aug 5, 2011 | Anadarko E&P Company LP | Stanley Ranch #8HH | 9,750 | 47941436 |
| 721503Amendment | Aug 5, 2011 | Aug 5, 2011 | Anadarko E&P Onshore LLC | Stanley Ranch #8HH | 9,750 | 47941436 |
| 721497 | Aug 5, 2011 | Aug 5, 2011 | Anadarko E&P Company LP | Stanley Ranch #7HH | 9,750 | 47941435 |
| 721466 | Aug 5, 2011 | Aug 5, 2011 | Anadarko E&P Company LP | Stanley Ranch #16HH | 17,000 | 47941434 |
| 721462 | Aug 5, 2011 | Aug 5, 2011 | Anadarko E&P Company LP | Stanley Ranch #15HH | 17,000 | 47941433 |
| 721458 | Aug 5, 2011 | Aug 5, 2011 | Anadarko E&P Company LP | Stanley Ranch #14HH | 17,000 | 47941432 |
| 721458Amendment | Aug 5, 2011 | Aug 5, 2011 | Anadarko E&P Company LP | Stanley Ranch #14HH | 17,000 | 47941432 |
| 721420 | Aug 4, 2011 | Aug 4, 2011 | Anadarko E&P Company LP | Stanley Ranch #13HH | 9,750 | 47941431 |
| 721417 | Aug 4, 2011 | Aug 4, 2011 | Anadarko E&P Company LP | Stanley Ranch #12HH | 9,750 | 47941430 |
| 721413 | Aug 4, 2011 | Aug 4, 2011 | Anadarko E&P Company LP | Stanley Ranch #11HH | 9,750 | 47941429 |
| 721411 | Aug 4, 2011 | Aug 4, 2011 | Anadarko E&P Company LP | Stanley Ranch #10HH | 9,750 | 47941428 |
| 721389 | Aug 3, 2011 | Aug 3, 2011 | Anadarko E&P Company LP | Stanley Ranch #20HH | 17,000 | 47941426 |
| 721386 | Aug 3, 2011 | Aug 3, 2011 | Anadarko E&P Company LP | Stanley Ranch #19HH | 17,000 | 47941423 |
| 721386Amendment | Aug 3, 2011 | Aug 3, 2011 | Anadarko E&P Company LP | Stanley Ranch #19HH | 17,000 | 47941423 |
| 721380 | Aug 3, 2011 | Aug 3, 2011 | Anadarko E&P Company LP | Stanley Ranch #18HH | 17,000 | 47941424 |
| 721380Amendment | Aug 3, 2011 | Aug 3, 2011 | Anadarko E&P Company LP | Stanley Ranch #18HH | 17,000 | 47941424 |
| 721371 | Aug 3, 2011 | Aug 3, 2011 | Anadarko E&P Company LP | Stanley Ranch #17HH | 17,000 | 47941422 |
| 721368 | Aug 3, 2011 | Aug 3, 2011 | Anadarko E&P Company LP | Stanley Ranch #6HH | 15,000 | 47941421 |
| 721352 | Aug 3, 2011 | Aug 3, 2011 | Swift Energy Operating, LLC | Fasken 'B' EF #8HH | 12,500 | 47941425 |
| 721351 | Aug 3, 2011 | Aug 3, 2011 | Swift Energy Operating, LLC | Fasken 'B' EF #7HH | 12,500 | 47941420 |
| 721201 | Aug 3, 2011 | Aug 3, 2011 | XTO Energy Inc. | Las Raices Ranch #18HH | 17,000 | 47941427 |
| 721064 | Aug 2, 2011 | Aug 2, 2011 | Shell Western E&P | Piloncillo #D 9HBH | 15,000 | 47941413 |
| 721066 | Aug 1, 2011 | Aug 1, 2011 | Shell Western E&P | Piloncillo #D 9HDH | 15,000 | 47941419 |
| 721112 | Jul 29, 2011 | Jul 29, 2011 | SM Energy Company | Galvan Ranch #B103HH | 12,000 | 47941416 |
| 721112Amendment | Jul 29, 2011 | Jul 29, 2011 | SM Energy Company | Galvan Ranch #B103HH | 12,000 | 47941416 |
| 721112Amendment | Jul 29, 2011 | Jul 29, 2011 | SM Energy Company | Galvan Ranch #B103HH | 12,000 | 47941416 |
| 721111 | Jul 29, 2011 | Jul 29, 2011 | SM Energy Company | Galvan Ranch #B102HH | 12,000 | 47941415 |
| 721111Amendment | Jul 29, 2011 | Jul 29, 2011 | SM Energy Company | Galvan Ranch #B102HH | 12,000 | 47941415 |
| 721111Amendment | Jul 29, 2011 | Jul 29, 2011 | SM Energy Company | Galvan Ranch #B102HH | 12,000 | 47941415 |
| 721108 | Jul 29, 2011 | Jul 29, 2011 | SM Energy Company | Galvan Ranch #B101HH | 12,000 | 47941418 |
| 721108Amendment | Jul 29, 2011 | Jul 29, 2011 | SM Energy Company | Galvan Ranch #B101HH | 12,000 | 47941418 |
| 721108Amendment | Jul 29, 2011 | Jul 29, 2011 | SM Energy Company | Galvan Ranch #B101HH | 12,000 | 47941418 |
| 721065 | Jul 29, 2011 | Jul 29, 2011 | Shell Western E&P | Piloncillo #D 9HCH | 15,000 | 47941414 |
| 721063 | Jul 29, 2011 | Jul 29, 2011 | Shell Western E&P | Piloncillo #D 9HAH | 15,000 | 47941412 |
| 720995 | Jul 28, 2011 | Jul 28, 2011 | SM Energy Company | Briscoe GU1 State AR #2HH | 12,000 | 47941411 |
| 720978 | Jul 28, 2011 | Jul 28, 2011 | Swift Energy Operating, LLC | Fasken "B" EF #4HH | 11,500 | 47941409 |
| 720978Amendment | Jul 28, 2011 | Jul 28, 2011 | Swift Energy Operating, LLC | Fasken 'B' EF #4HH | 11,500 | 47941409 |
| 720978Amendment | Jul 28, 2011 | Jul 28, 2011 | Swift Energy Operating, LLC | Fasken 'B' EF #4HH | 11,500 | 47941409 |
| 720977 | Jul 28, 2011 | Jul 28, 2011 | Swift Energy Operating, LLC | Fasken "B" EF #3HH | 11,500 | 47941410 |
| 720977Amendment | Jul 28, 2011 | Jul 28, 2011 | Swift Energy Operating, LLC | Fasken 'B' EF #3HH | 11,500 | 47941410 |
| 720977Amendment | Jul 28, 2011 | Jul 28, 2011 | Swift Energy Operating, LLC | Fasken C #3HH | 11,500 | 47941410 |
| 720952 | Jul 27, 2011 | Jul 27, 2011 | Lewis Petro Properties, Inc. | De la Garza GU #1HH | 12,500 | 47941407 |
| 720938 | Jul 27, 2011 | Jul 27, 2011 | Conocophillips Company | Carr #158 | 9,500 | 47941408 |
| 720938Amendment | Jul 27, 2011 | Jul 27, 2011 | Conocophillips Company | Carr #158 | 9,260 | 47941408 |
| 720865 | Jul 26, 2011 | Jul 26, 2011 | Swift Energy Operating, LLC | Fasken 'B' EF #6HH | 11,500 | 47941406 |
| 720858 | Jul 26, 2011 | Jul 26, 2011 | Evolution Operating Co., Inc. | J. Lopez, et Al #2 | 3,000 | 47941404 |
| 720857 | Jul 26, 2011 | Jul 26, 2011 | Evolution Operating Co., Inc. | J. Lopez, et Al #1 | 3,000 | 47941403 |
| 720821 | Jul 26, 2011 | Jul 26, 2011 | Mohican Operating, L.L.C. | Winch #5 | 9,800 | 47941405 |
| 720374 | Jul 26, 2011 | Jul 26, 2011 | SM Energy Company | Galvan Ranch LP #1HH | 12,000 | 47941400 |