| 764104 | Jun 12, 2013 | Jun 12, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 9 Dim #O 3HH | 9,000 | 12735582 |
| 764104Amendment | Jun 12, 2013 | Jun 12, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 9 Dim #O 3HH | 9,000 | 12735582 |
| 764104Amendment | Jun 12, 2013 | Jun 12, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 9 Dim #O 3HH | 9,000 | 12735582 |
| 764103 | Jun 12, 2013 | Jun 12, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 8 Dim #O 6HH | 9,000 | 12735579 |
| 764103Amendment | Jun 12, 2013 | Jun 12, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 8 Dim #O 6HH | 9,000 | 12735579 |
| 764103Amendment | Jun 12, 2013 | Jun 12, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 8 Dim #O 6HH | 9,000 | 12735579 |
| 764100 | Jun 12, 2013 | Jun 12, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 8 Dim #O 5HH | 9,000 | 12735581 |
| 764100Amendment | Jun 12, 2013 | Jun 12, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 8 Dim #O 5HH | 9,000 | 12735581 |
| 764100Amendment | Jun 12, 2013 | Jun 12, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 8 Dim #O 5HH | 9,000 | 12735581 |
| 764061 | Jun 11, 2013 | Jun 11, 2013 | Rosetta Resources Operating LP | Briscoe Ranch EF #39H | 8,000 | 12735578 |
| 764061Amendment | Jun 11, 2013 | Jun 11, 2013 | Rosetta Resources Operating LP | Briscoe Ranch EF #39H | 8,000 | 12735578 |
| 764052 | Jun 11, 2013 | Jun 11, 2013 | Rosetta Resources Operating LP | Briscoe Ranch EF #38H | 8,000 | 12735577 |
| 764052Amendment | Jun 11, 2013 | Jun 11, 2013 | Rosetta Resources Operating LP | Briscoe Ranch EF #38H | 8,000 | 12735577 |
| 764047 | Jun 11, 2013 | Jun 11, 2013 | Rosetta Resources Operating LP | Briscoe Ranch EF #37H | 8,000 | 12735584 |
| 764043 | Jun 11, 2013 | Jun 11, 2013 | Rosetta Resources Operating LP | Briscoe Ranch EF #36H | 8,000 | 12735576 |
| 764043Amendment | Jun 11, 2013 | Jun 11, 2013 | Rosetta Resources Operating LP | Briscoe Ranch EF #36H | 8,000 | 12735576 |
| 763901 | Jun 7, 2013 | Jun 7, 2013 | Blackbrush O & G, LLC | La Bandera Ranch #145HH | 4,000 | 12735571 |
| 763899 | Jun 7, 2013 | Jun 7, 2013 | Chesapeake Operating, Inc. | Faith San Pedro BB Unit #I 1HH | 9,000 | 12735570 |
| 763895 | Jun 7, 2013 | Jun 7, 2013 | Chesapeake Operating, Inc. | Faith San Pedro CC Unit #I 1HH | 9,000 | 12735569 |
| 763892 | Jun 7, 2013 | Jun 7, 2013 | Chesapeake Operating, Inc. | Faith San Pedro G Unit #I 1HH | 9,000 | 12735568 |
| 763815 | Jun 6, 2013 | Jun 6, 2013 | Newfield Exploration Company | Cmww A #4202HH | 7,500 | 12735567 |
| 763193 | Jun 6, 2013 | Jun 6, 2013 | Chesapeake Operating, Inc. | Cmww D Dim (Allocation) #4HH | 9,000 | 12735545 |
| 763767 | Jun 5, 2013 | Jun 5, 2013 | Murphy Expl. & Prod. Co. - USA | Helmcamp King Unit B #2HH | 7,954 | 12735566 |
| 763746 | Jun 5, 2013 | Jun 5, 2013 | Murphy Expl. & Prod. Co. - USA | Helmcamp King Unit B #1HH | 7,954 | 12735565 |
| 763746Amendment | Jun 5, 2013 | Jun 5, 2013 | Murphy Expl. & Prod. Co. - USA | Helmcamp King Unit B #1HH | 7,954 | 12735565 |
| 763736 | Jun 4, 2013 | Jun 4, 2013 | Murphy Expl. & Prod. Co. - USA | Helmcamp King Unit A #2HH | 7,954 | 12735564 |
| 763733 | Jun 4, 2013 | Jun 4, 2013 | Murphy Expl. & Prod. Co. - USA | Helmcamp King Unit A #1HH | 7,954 | 12735559 |
| 763639 | Jun 4, 2013 | Jun 4, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 11 Dim #P 3HH | 9,000 | 12735560 |
| 763639Amendment | Jun 4, 2013 | Jun 4, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 11 Dim #P 3HH | 9,000 | 12735560 |
| 763639Amendment | Jun 4, 2013 | Jun 4, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 11 Dim #P 3HH | 9,000 | 12735560 |
| 763661 | Jun 3, 2013 | Jun 3, 2013 | Anadarko E&P Onshore LLC | La Bandera Ranch Unit A #6HH | 7,000 | 12735558 |
| 763655 | Jun 3, 2013 | Jun 3, 2013 | Anadarko E&P Onshore LLC | La Bandera Ranch Unit A #5HH | 6,500 | 12735556 |
| 763637 | Jun 3, 2013 | Jun 3, 2013 | Anadarko E&P Onshore LLC | La Bandera Ranch Unit A #4HH | 6,500 | 12735555 |
| 763591 | Jun 3, 2013 | Jun 3, 2013 | Anadarko E&P Onshore LLC | Maund Ranch 19 Unit #6HH | 7,000 | 12735554 |
| 763586 | Jun 3, 2013 | Jun 3, 2013 | Anadarko E&P Onshore LLC | Maund Ranch 19 Unit #5HH | 7,000 | 12735553 |
| 763544 | May 31, 2013 | May 31, 2013 | Anadarko E&P Onshore LLC | Briscoe Cochina West Ranch #51HH | 8,615 | 12735552 |
| 763522 | May 31, 2013 | May 31, 2013 | Anadarko E&P Onshore LLC | Briscoe Cochina West Ranch #50HH | 8,615 | 12735551 |
| 763516 | May 31, 2013 | May 31, 2013 | Anadarko E&P Onshore LLC | Briscoe Cochina West Ranch #49HH | 8,615 | 12735550 |
| 763511 | May 31, 2013 | May 31, 2013 | Anadarko E&P Onshore LLC | Briscoe Cochina West Ranch #48HH | 8,615 | 12735549 |
| 763510 | May 31, 2013 | May 31, 2013 | Anadarko E&P Onshore LLC | Briscoe Cochina West Ranch #47HH | 8,615 | 12735548 |
| 763496 | May 31, 2013 | May 31, 2013 | Lewis Petro Properties, Inc. | Cotulla #76HH | 9,000 | 12735547 |
| 763495 | May 31, 2013 | May 31, 2013 | Lewis Petro Properties, Inc. | Cotulla #75HH | 9,000 | 12735546 |
| 763179 | May 28, 2013 | May 28, 2013 | Chesapeake Operating, Inc. | Cmww B Dim (Allocation) #2HH | 9,000 | 12735544 |
| 763095 | May 28, 2013 | May 28, 2013 | Chesapeake Operating, Inc. | Cmww a Dim (Allocation) #1HH | 9,000 | 12735531 |
| 763200 | May 24, 2013 | May 24, 2013 | Anadarko E&P Onshore LLC | Stumberg Ranch Unit A #7HH | 8,500 | 12735543 |
| 763197 | May 24, 2013 | May 24, 2013 | Anadarko E&P Onshore LLC | Stumberg Ranch Unit A #6HH | 8,500 | 12735542 |
| 763188 | May 24, 2013 | May 24, 2013 | Anadarko E&P Onshore LLC | Stumberg Ranch Unit A #5HH | 8,500 | 12735541 |
| 763181 | May 24, 2013 | May 24, 2013 | Anadarko E&P Onshore LLC | Stumberg Ranch Unit A #4HH | 8,500 | 12735540 |
| 763157 | May 24, 2013 | May 24, 2013 | Stonegate Production Company,llc | Hatch Dim #E 3HH | 9,000 | 12735539 |
| 763150 | May 24, 2013 | May 24, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #44HH | 8,800 | 12735536 |
| 763145 | May 24, 2013 | May 24, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #43HH | 8,800 | 12735535 |
| 763141 | May 24, 2013 | May 24, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #42HH | 8,800 | 12735534 |
| 763138 | May 24, 2013 | May 24, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #41HH | 8,800 | 12735533 |
| 763133 | May 24, 2013 | May 24, 2013 | Stonegate Production Company,llc | Hatch Dim #C 4HH | 9,000 | 12735538 |
| 763132 | May 24, 2013 | May 24, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #40HH | 8,800 | 12735532 |
| 763129 | May 24, 2013 | May 24, 2013 | Stonegate Production Company,llc | Hatch Dim #D 3HH | 9,000 | 12735537 |
| 762761 | May 23, 2013 | May 23, 2013 | Texas American Resources Company | Robert Price 59 #2HH | 7,000 | 12735528 |
| 762761Amendment | May 23, 2013 | May 23, 2013 | Texas American Resources Company | Robert Price 59 #2HH | 7,000 | 12735528 |
| 762936 | May 22, 2013 | May 22, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 10 Dim #O 4HH | 9,000 | 12735530 |
| 762936Amendment | May 22, 2013 | May 22, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 10 Dim #O 4HH | 9,000 | 12735530 |
| 762933 | May 22, 2013 | May 22, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 11 Dim #O 1HH | 9,000 | 12735529 |
| 762933Amendment | May 22, 2013 | May 22, 2013 | Chesapeake Operating, Inc. | Valley Wells Unit 11 Dim #O 1HH | 9,000 | 12735529 |
| 761481 | May 21, 2013 | May 21, 2013 | Chesapeake Operating, Inc. | Faith-Bonita #A 1HH | 12,000 | 12733867 |
| 761481Amendment | May 21, 2013 | May 21, 2013 | Chesapeake Operating, Inc. | Faith-Bonita #A 1HH | 12,000 | 12733867 |
| 762751 | May 17, 2013 | May 17, 2013 | Texas American Resources Company | Bowman A #2HH | 7,553 | 12735527 |
| 762751Amendment | May 17, 2013 | May 17, 2013 | Texas American Resources Company | Bowman A #2HH | 7,553 | 12735527 |
| 762577 | May 17, 2013 | May 17, 2013 | Anadarko E&P Onshore LLC | Stumberg Ranch Unit A #2HH | 9,000 | 12735520 |
| 762655 | May 16, 2013 | May 16, 2013 | Chesapeake Operating, Inc. | Faith-San Pedro #I 4HH | 9,000 | 12735526 |
| 762654 | May 16, 2013 | May 16, 2013 | Chesapeake Operating, Inc. | Faith-San Pedro #I 3HH | 9,000 | 12735525 |
| 762652 | May 16, 2013 | May 16, 2013 | Chesapeake Operating, Inc. | Faith-San Pedro #I 2HH | 9,000 | 12735524 |
| 762649 | May 16, 2013 | May 16, 2013 | Chesapeake Operating, Inc. | Faith-San Pedro #I 1HH | 9,000 | 12735523 |
| 762603 | May 16, 2013 | May 16, 2013 | Lightning Oil Company | Cutlass West A #2H | 9,000 | 12735522 |
| 762579 | May 15, 2013 | May 15, 2013 | Anadarko E&P Onshore LLC | Stumberg Ranch Unit A #3HH | 9,000 | 12735521 |
| 762575 | May 15, 2013 | May 15, 2013 | Anadarko E&P Onshore LLC | Stumberg Ranch Unit A #1HH | 9,000 | 12735519 |
| 762391 | May 10, 2013 | May 10, 2013 | Chesapeake Operating, Inc. | Haning Dim #E 3HH | 9,000 | 12735518 |
| 762389 | May 10, 2013 | May 10, 2013 | Chesapeake Operating, Inc. | Haning Dim #E 2HH | 9,000 | 12735517 |
| 762383 | May 10, 2013 | May 10, 2013 | Chesapeake Operating, Inc. | Haning Dim #E 1HH | 9,000 | 12735516 |
| 762140 | May 9, 2013 | May 9, 2013 | Blackbrush O & G, LLC | Hamilton Ranch A #358HH | 4,000 | 12735514 |
| 760487 | May 9, 2013 | May 9, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #29HH | 8,600 | 12735515 |
| 760487Amendment | May 9, 2013 | May 9, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #29HH | 8,600 | 12735515 |
| 761810 | May 8, 2013 | May 8, 2013 | Bellows Operating Co., L. C. | McArty #1 | 8,120 | 12732881 |
| 762046 | May 6, 2013 | May 6, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #38HH | 8,550 | 12735513 |
| 762046Amendment | May 6, 2013 | May 6, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #38HH | 8,550 | 12735513 |
| 762044 | May 6, 2013 | May 6, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #39HH | 8,550 | 12735512 |
| 762044Amendment | May 6, 2013 | May 6, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #39HH | 8,550 | 12735512 |
| 762039 | May 6, 2013 | May 6, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #37HH | 8,550 | 12735511 |
| 762039Amendment | May 6, 2013 | May 6, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #37HH | 8,550 | 12735511 |
| 762038 | May 6, 2013 | May 6, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #36HH | 8,550 | 12735510 |
| 762038Amendment | May 6, 2013 | May 6, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #36HH | 8,550 | 12735510 |
| 761829 | May 3, 2013 | May 3, 2013 | Blackbrush O & G, LLC | Hamilton Ranch A #258HH | 4,000 | 12735506 |
| 761624 | May 3, 2013 | May 3, 2013 | Chesapeake Operating, Inc. | Faith-San Pedro #J 1HH | 9,000 | 12735502 |
| 761630 | May 2, 2013 | May 2, 2013 | Chesapeake Operating, Inc. | Faith-San Pedro #J 2HH | 9,000 | 12735505 |
| 761628 | May 2, 2013 | May 2, 2013 | Chesapeake Operating, Inc. | Faith-San Pedro #J 4HH | 9,000 | 12735504 |
| 761626 | May 2, 2013 | May 2, 2013 | Chesapeake Operating, Inc. | Faith-San Pedro #J 3HH | 9,000 | 12735503 |
| 761633 | May 1, 2013 | May 1, 2013 | Rosetta Resources Operating LP | Light Ranch #8H | 8,200 | 12735499 |
| 761632 | May 1, 2013 | May 1, 2013 | Rosetta Resources Operating LP | Light Ranch #7H | 8,200 | 12735500 |
| 761361 | May 1, 2013 | May 1, 2013 | Anadarko E&P Onshore LLC | Briscoe Cochina West Ranch #46HH | 9,000 | 12735492 |
| 761562 | Apr 30, 2013 | Apr 30, 2013 | Anadarko E&P Onshore LLC | Maund Ranch 23 Unit #12HH | 7,600 | 12735498 |
| 761561 | Apr 30, 2013 | Apr 30, 2013 | Anadarko E&P Onshore LLC | Maund Ranch 23 Unit #11HH | 7,600 | 12735497 |
| 761560 | Apr 30, 2013 | Apr 30, 2013 | Anadarko E&P Onshore LLC | Maund Ranch 23 Unit #10HH | 7,600 | 12735496 |