| 760898 | Apr 24, 2013 | Apr 24, 2013 | Killam Oil Co., Ltd. | K & H Fee '574' #3 | 7,910 | 47936586 |
| 760897 | Apr 24, 2013 | Apr 24, 2013 | Killam Oil Co., Ltd. | Killam and Hurd Fee 2005 #1 | 6,211 | 47940833 |
| 761129 | Apr 23, 2013 | Apr 23, 2013 | Rosetta Resources Operating LP | Gates 09 Rose B #5018H | 8,900 | 47942413 |
| 761129Amendment | Apr 23, 2013 | Apr 23, 2013 | Rosetta Resources Operating LP | Gates 09 Rose B #5018H | 8,900 | 47942413 |
| 761108 | Apr 23, 2013 | Apr 23, 2013 | Rosetta Resources Operating LP | Gates 09 Rose B #1018H | 8,900 | 47942412 |
| 760938 | Apr 22, 2013 | Apr 22, 2013 | SM Energy Company | Briscoe R #17HH | 10,000 | 47942411 |
| 760928 | Apr 19, 2013 | Apr 19, 2013 | SM Energy Company | Briscoe R #16HH | 10,000 | 47942408 |
| 760925 | Apr 19, 2013 | Apr 19, 2013 | SM Energy Company | Briscoe R #15HH | 10,000 | 47942407 |
| 760920 | Apr 19, 2013 | Apr 19, 2013 | SM Energy Company | Briscoe R #5HH | 10,000 | 47942406 |
| 760836 | Apr 19, 2013 | Apr 19, 2013 | Laredo Energy | Rosa V. Benavides #36HH | 6,000 | 47942410 |
| 760811 | Apr 19, 2013 | Apr 19, 2013 | Laredo Energy | Rosa V. Benavides #35HH | 6,000 | 47942409 |
| 760769 | Apr 18, 2013 | Apr 18, 2013 | SM Energy Company | Galvan Ranch #B313HH | 12,000 | 47942405 |
| 760768 | Apr 18, 2013 | Apr 18, 2013 | SM Energy Company | Galvan Ranch #B312HH | 12,000 | 47942404 |
| 760764 | Apr 18, 2013 | Apr 18, 2013 | SM Energy Company | Galvan Ranch #B311HH | 12,000 | 47942403 |
| 760527 | Apr 18, 2013 | Apr 18, 2013 | Lewis Petro Properties, Inc. | Gates 11-Dr #131HH | 9,000 | 47942390 |
| 760659 | Apr 17, 2013 | Apr 17, 2013 | Lewis Petro Properties, Inc. | Gates 11-Dr #133HH | 9,000 | 47942400 |
| 760655 | Apr 17, 2013 | Apr 17, 2013 | Lewis Petro Properties, Inc. | Gates 11-Dr #132HH | 9,000 | 47942402 |
| 760655Amendment | Apr 17, 2013 | Apr 17, 2013 | Lewis Petro Properties, Inc. | Gates 11-Dr #132HH | 9,000 | 47942402 |
| 760660 | Apr 15, 2013 | Apr 15, 2013 | Lewis Petro Properties, Inc. | Trost #2HH | 9,000 | 47942401 |
| 760575 | Apr 15, 2013 | Apr 15, 2013 | SM Energy Company | Galvan Ranch #B321HH | 12,000 | 47942396 |
| 760573 | Apr 15, 2013 | Apr 15, 2013 | SM Energy Company | Galvan Ranch #B319HH | 12,000 | 47942395 |
| 760569 | Apr 15, 2013 | Apr 15, 2013 | SM Energy Company | Galvan Ranch #B317HH | 12,000 | 47942394 |
| 760557 | Apr 15, 2013 | Apr 15, 2013 | SM Energy Company | Galvan Ranch #B326HH | 12,000 | 47942393 |
| 760557Amendment | Apr 15, 2013 | Apr 15, 2013 | SM Energy Company | Galvan Ranch #B326HH | 12,000 | 47942393 |
| 760552 | Apr 15, 2013 | Apr 15, 2013 | SM Energy Company | Galvan Ranch #B324HH | 12,000 | 47942392 |
| 760550 | Apr 15, 2013 | Apr 15, 2013 | SM Energy Company | Galvan Ranch #B322HH | 12,000 | 47942391 |
| 760550Amendment | Apr 15, 2013 | Apr 15, 2013 | SM Energy Company | Galvan Ranch #B322HH | 12,000 | 47942391 |
| 760509 | Apr 15, 2013 | Apr 15, 2013 | Shell Western E&P | Piloncillo #D 25HFH | 20,000 | 47942389 |
| 760508 | Apr 15, 2013 | Apr 15, 2013 | Shell Western E&P | Piloncillo #D 25HEH | 20,000 | 47942398 |
| 760507 | Apr 15, 2013 | Apr 15, 2013 | Shell Western E&P | Piloncillo #D 25HDH | 20,000 | 47942388 |
| 760507Amendment | Apr 15, 2013 | Apr 15, 2013 | SN Operating, LLC | Piloncillo #D 25HDH | 20,100 | 47942388 |
| 760506 | Apr 15, 2013 | Apr 15, 2013 | Shell Western E&P | Piloncillo #D 25HCH | 20,000 | 47942397 |
| 760506Amendment | Apr 15, 2013 | Apr 15, 2013 | SN Operating, LLC | Piloncillo #D 25HCH | 20,100 | 47942397 |
| 760505 | Apr 15, 2013 | Apr 15, 2013 | Shell Western E&P | Piloncillo #D 25HBH | 20,000 | 47942399 |
| 760505Amendment | Apr 15, 2013 | Apr 15, 2013 | SN Operating, LLC | Piloncillo #D 25HBH | 20,100 | 47942399 |
| 760504 | Apr 15, 2013 | Apr 15, 2013 | Shell Western E&P | Piloncillo #D 25HAH | 20,000 | 47942387 |
| 760504Amendment | Apr 15, 2013 | Apr 15, 2013 | SN Operating, LLC | Piloncillo #D 25HAH | 20,100 | 47942387 |
| 760452 | Apr 12, 2013 | Apr 12, 2013 | SM Energy Company | Briscoe G GU10 State #10HH | 10,000 | 47942386 |
| 760437 | Apr 12, 2013 | Apr 12, 2013 | Laredo Energy | G.B. Minerals #3HH | 10,500 | 47942385 |
| 760286 | Apr 11, 2013 | Apr 11, 2013 | Anadarko E&P Onshore LLC | Stanley Ranch #27HH | 9,835 | 47942384 |
| 760275 | Apr 11, 2013 | Apr 11, 2013 | Anadarko E&P Onshore LLC | Stanley Ranch #26HH | 9,835 | 47942383 |
| 760274 | Apr 11, 2013 | Apr 11, 2013 | Sanchez Oil & Gas Corporation | Billings #5 | 2,700 | 47942382 |
| 760230 | Apr 9, 2013 | Apr 9, 2013 | SM Energy Company | Galvan Ranch #B310HH | 12,000 | 47942381 |
| 760225 | Apr 9, 2013 | Apr 9, 2013 | SM Energy Company | Galvan Ranch #B308HH | 12,000 | 47942380 |
| 760224 | Apr 9, 2013 | Apr 9, 2013 | SM Energy Company | Galvan Ranch #B307HH | 12,000 | 47942379 |
| 760001 | Apr 4, 2013 | Apr 4, 2013 | Sanchez Oil & Gas Corporation | Lopez #7 | 2,700 | 47942377 |
| 760001Amendment | Apr 4, 2013 | Apr 4, 2013 | Sanchez Oil & Gas Corporation | Lopez Unit #7 | 2,700 | 47942377 |
| 759924 | Apr 4, 2013 | Apr 4, 2013 | Lewis Petro Properties, Inc. | Gates 10-Dr TR1 #105HH | 9,000 | 47942376 |
| 759919 | Apr 4, 2013 | Apr 4, 2013 | Lewis Petro Properties, Inc. | Gates 10-Dr TR1 #104HH | 9,000 | 47942375 |
| 759656 | Apr 1, 2013 | Apr 1, 2013 | Lewis Petro Properties, Inc. | Cotulla #72HH | 9,000 | 47942374 |
| 759655 | Apr 1, 2013 | Apr 1, 2013 | Lewis Petro Properties, Inc. | Cotulla #71HH | 9,000 | 47942373 |
| 759654 | Apr 1, 2013 | Apr 1, 2013 | Lewis Petro Properties, Inc. | Cotulla #70HH | 9,000 | 47942372 |
| 759653 | Apr 1, 2013 | Apr 1, 2013 | Lewis Petro Properties, Inc. | Cotulla #69HH | 9,000 | 47942371 |
| 759652 | Apr 1, 2013 | Apr 1, 2013 | Lewis Petro Properties, Inc. | Cotulla #68HH | 9,000 | 47942370 |
| 759651 | Apr 1, 2013 | Apr 1, 2013 | Lewis Petro Properties, Inc. | Cotulla #67HH | 9,000 | 47942369 |
| 759650 | Apr 1, 2013 | Apr 1, 2013 | Lewis Petro Properties, Inc. | Cotulla #66HH | 9,000 | 47942368 |
| 759649 | Apr 1, 2013 | Apr 1, 2013 | Lewis Petro Properties, Inc. | Cotulla #65HH | 9,000 | 47942367 |
| 759614 | Apr 1, 2013 | Apr 1, 2013 | Lewis Petro Properties, Inc. | Gates 07-Dr GU Y #94HH | 9,000 | 47942366 |
| 759613 | Apr 1, 2013 | Apr 1, 2013 | Lewis Petro Properties, Inc. | Gates 07-Dr GU X #93HH | 9,000 | 47942365 |
| 759606 | Apr 1, 2013 | Apr 1, 2013 | Lewis Petro Properties, Inc. | Gates 07-Dr GU W #92HH | 9,000 | 47942364 |
| 759605 | Apr 1, 2013 | Apr 1, 2013 | Lewis Petro Properties, Inc. | Gates 07-Dr GU V #91HH | 9,000 | 47942363 |
| 759592 | Mar 29, 2013 | Mar 29, 2013 | SM Energy Company | Galvan State #6HH | 12,000 | 47942362 |
| 759589 | Mar 29, 2013 | Mar 29, 2013 | SM Energy Company | Galvan State #5HH | 12,000 | 47942361 |
| 759521 | Mar 29, 2013 | Mar 29, 2013 | Lewis Petro Properties, Inc. | Gates 07-Dr GU Z #95HH | 9,000 | 47942359 |
| 759509 | Mar 29, 2013 | Mar 29, 2013 | Lewis Petro Properties, Inc. | Gates 07-Dr GU BB #112HH | 9,000 | 47942360 |
| 759497 | Mar 29, 2013 | Mar 29, 2013 | Lewis Petro Properties, Inc. | Gates 07-Dr GU AA #111HH | 9,000 | 47942358 |
| 759480 | Mar 29, 2013 | Mar 29, 2013 | Laredo Energy | Rosa V. Benavides #38HH | 7,000 | 47942357 |
| 759455 | Mar 28, 2013 | Mar 28, 2013 | Escondido Resources II, LLC | Gilpin #3HH | 12,000 | 47942356 |
| 759455Amendment | Mar 28, 2013 | Mar 28, 2013 | Escondido Resources II, LLC | Gilpin #3HH | 12,000 | 47942356 |
| 759448 | Mar 27, 2013 | Mar 27, 2013 | Escondido Resources II, LLC | Gilpin #2HH | 12,000 | 47942355 |
| 759448Amendment | Mar 27, 2013 | Mar 27, 2013 | Escondido Resources II, LLC | Gilpin #2HH | 12,000 | 47942355 |
| 759377 | Mar 27, 2013 | Mar 27, 2013 | SM Energy Company | Briscoe G GU11 State #26HH | 10,000 | 47942354 |
| 759161 | Mar 22, 2013 | Mar 22, 2013 | Rosetta Resources Operating LP | Gates 09 Rose B #1022RH | 8,700 | 47942353 |
| 759161Amendment | Mar 22, 2013 | Mar 22, 2013 | Rosetta Resources Operating LP | Gates 09 Rose B #1022RH | 9,000 | 47942353 |
| 758548 | Mar 15, 2013 | Mar 15, 2013 | Laredo Energy | Rosa V. Benavides #34HH | 7,000 | 47942352 |
| 758393 | Mar 14, 2013 | Mar 14, 2013 | SM Energy Company | Galvan Ranch #A517HH | 12,000 | 47942351 |
| 758388 | Mar 14, 2013 | Mar 14, 2013 | SM Energy Company | Galvan Ranch #A516HH | 12,000 | 47942350 |
| 758382 | Mar 14, 2013 | Mar 14, 2013 | SM Energy Company | Galvan Ranch #A515HH | 12,000 | 47942349 |
| 758309 | Mar 12, 2013 | Mar 12, 2013 | Lewis Petro Properties, Inc. | Huisache Cattle Company 'B' #14HH | 9,000 | 47942348 |
| 758289 | Mar 12, 2013 | Mar 12, 2013 | Anadarko E&P Onshore LLC | Worthey Ranch #42HH | 9,500 | 47942346 |
| 758287 | Mar 12, 2013 | Mar 12, 2013 | Anadarko E&P Onshore LLC | Worthey Ranch #41HH | 9,500 | 47942347 |
| 758261 | Mar 12, 2013 | Mar 12, 2013 | Lewis Petro Properties, Inc. | Huisache Cattle Company 'B' #13HH | 9,000 | 47942345 |
| 758213 | Mar 12, 2013 | Mar 12, 2013 | Middleton Oil Company | Triphene Middleton #3001 | 7,100 | 47930588 |
| 758055 | Mar 7, 2013 | Mar 7, 2013 | Anadarko E&P Onshore LLC | Worthey Ranch #32HH | 9,575 | 47942344 |
| 757973 | Mar 7, 2013 | Mar 7, 2013 | Lewis Petro Properties, Inc. | Meador 1451 #4HH | 17,000 | 47942343 |
| 757843 | Mar 6, 2013 | Mar 6, 2013 | Anadarko E&P Onshore LLC | Worthey Ranch #31HH | 9,575 | 47942342 |
| 757842 | Mar 6, 2013 | Mar 6, 2013 | Anadarko E&P Onshore LLC | Worthey Ranch #30HH | 9,575 | 47942341 |
| 757682 | Mar 4, 2013 | Mar 4, 2013 | Anadarko E&P Onshore LLC | Worthey Ranch #40HH | 9,600 | 47942340 |
| 757644 | Mar 4, 2013 | Mar 4, 2013 | Anadarko E&P Onshore LLC | Worthey Ranch #39HH | 9,600 | 47942339 |
| 757632 | Mar 1, 2013 | Mar 1, 2013 | SM Energy Company | Galvan Ranch #B255HH | 12,000 | 47942338 |
| 757627 | Mar 1, 2013 | Mar 1, 2013 | SM Energy Company | Galvan Ranch #B254HH | 12,000 | 47942337 |
| 757626 | Mar 1, 2013 | Mar 1, 2013 | SM Energy Company | Galvan Ranch #B253HH | 12,000 | 47942336 |
| 757597 | Mar 1, 2013 | Mar 1, 2013 | Sanchez Oil & Gas Corporation | Billings #9 | 2,700 | 47942335 |
| 757597Amendment | Mar 1, 2013 | Mar 1, 2013 | Sanchez Oil & Gas Corporation | Billings #9 | 2,700 | 47942335 |
| 757597Amendment | Mar 1, 2013 | Mar 1, 2013 | Sanchez Oil & Gas Corporation | Billings #9 | 2,700 | 47942335 |
| 757597Amendment | Mar 1, 2013 | Mar 1, 2013 | Sanchez Oil & Gas Corporation | Billings #9 | 2,700 | 47942335 |
| 757526 | Feb 28, 2013 | Feb 28, 2013 | Lewis Petro Properties, Inc. | Gates 07-Dr #110HH | 9,000 | 47942334 |
| 757420 | Feb 27, 2013 | Feb 27, 2013 | Lewis Petro Properties, Inc. | Volz 1125 #12HH | 9,000 | 47942333 |
| 757188 | Feb 25, 2013 | Feb 25, 2013 | Laredo Energy | Rosa V. Benavides #33HH | 7,000 | 47942332 |
| 757174 | Feb 25, 2013 | Feb 25, 2013 | Laredo Energy | Rosa V. Benavides #32HH | 7,000 | 47942331 |