| 747853 | Sep 18, 2012 | Sep 18, 2012 | Chesapeake Operating, Inc. | Gringita Unit I Dim #D 2HH | 9,000 | 12735068 |
| 747853Amendment | Sep 18, 2012 | Sep 18, 2012 | Chesapeake Operating, Inc. | Gringita Unit I Dim #D 2HH | 9,000 | 12735068 |
| 747853Amendment | Sep 18, 2012 | Sep 18, 2012 | Chesapeake Operating, Inc. | Gringita Unit I Dim #D 2HH | 9,000 | 12735068 |
| 747743 | Sep 18, 2012 | Sep 18, 2012 | Blackbrush O & G, LLC | San Pedro Ranch #509HH | 4,000 | 12735065 |
| 747800 | Sep 17, 2012 | Sep 17, 2012 | Chesapeake Operating, Inc. | Faith Sandy Dim #J 4HH | 9,000 | 12735067 |
| 747800Amendment | Sep 17, 2012 | Sep 17, 2012 | Chesapeake Operating, Inc. | Faith Sandy Dim #J 4HH | 9,000 | 12735067 |
| 747762 | Sep 14, 2012 | Sep 14, 2012 | Anadarko E&P Company LP | Briscoe Catarina North #34HH | 8,600 | 12735066 |
| 747728 | Sep 14, 2012 | Sep 14, 2012 | Anadarko E&P Company LP | Briscoe Catarina North #33HH | 8,600 | 12735070 |
| 747720 | Sep 14, 2012 | Sep 14, 2012 | Anadarko E&P Company LP | Briscoe Catarina North #32HH | 8,600 | 12735064 |
| 747715 | Sep 14, 2012 | Sep 14, 2012 | Anadarko E&P Company LP | Briscoe Catarina North #19HH | 8,600 | 12735063 |
| 747608 | Sep 13, 2012 | Sep 13, 2012 | Chesapeake Operating, Inc. | Gibson Unit a Dim #1HH | 9,000 | 12735062 |
| 747533 | Sep 13, 2012 | Sep 13, 2012 | Chesapeake Operating, Inc. | Grandberry Unit a Dim #1HH | 9,000 | 12735061 |
| 747533Amendment | Sep 13, 2012 | Sep 13, 2012 | Chesapeake Operating, Inc. | Grandberry Unit a Dim #1HH | 9,000 | 12735061 |
| 747533Amendment | Sep 13, 2012 | Sep 13, 2012 | Chesapeake Operating, Inc. | Grandberry Unit a Dim #1HH | 9,000 | 12735061 |
| 747533Amendment | Sep 13, 2012 | Sep 13, 2012 | Chesapeake Operating, Inc. | Grandberry Unit a Dim #1HH | 9,000 | 12735061 |
| 747497 | Sep 12, 2012 | Sep 12, 2012 | Chesapeake Operating, Inc. | Steubing Unit D Dim #1HH | 9,000 | 12735059 |
| 747495 | Sep 12, 2012 | Sep 12, 2012 | Chesapeake Operating, Inc. | Steubing Unit C Dim #1HH | 9,000 | 12735060 |
| 747381 | Sep 10, 2012 | Sep 10, 2012 | Anadarko E&P Company LP | Diamond H Ranch #11HH | 8,500 | 12735057 |
| 747253 | Sep 6, 2012 | Sep 6, 2012 | Blackbrush O & G, LLC | San Pedro Ranch #609HH | 4,000 | 12735056 |
| 747253Amendment | Sep 6, 2012 | Sep 6, 2012 | Blackbrush O & G, LLC | SPR Unit A #609HH | 4,000 | 12735056 |
| 747253Amendment | Sep 6, 2012 | Sep 6, 2012 | Blackbrush O & G, LLC | SPR Unit A #609HH | 4,000 | 12735056 |
| 747218 | Sep 6, 2012 | Sep 6, 2012 | Chesapeake Operating, Inc. | Faith Sandy Dim #J 1HH | 9,000 | 12735055 |
| 747218Amendment | Sep 6, 2012 | Sep 6, 2012 | Chesapeake Operating, Inc. | Faith Sandy Dim #J 1HH | 9,000 | 12735055 |
| 747162 | Sep 6, 2012 | Sep 6, 2012 | Chesapeake Operating, Inc. | Stuebing Unit B Dim #1HH | 9,000 | 12735053 |
| 747161 | Sep 6, 2012 | Sep 6, 2012 | Chesapeake Operating, Inc. | Thornhill Unit a Dim #1HH | 9,000 | 12735054 |
| 747161Amendment | Sep 6, 2012 | Sep 6, 2012 | Chesapeake Operating, Inc. | Thornhill Unit a Dim #1HH | 9,000 | 12735054 |
| 747161Amendment | Sep 6, 2012 | Sep 6, 2012 | Chesapeake Operating, Inc. | Thornhill Unit a Dim #1HH | 9,000 | 12735054 |
| 747046 | Sep 6, 2012 | Sep 6, 2012 | Chesapeake Operating, Inc. | Faith Sandy Dim #H 1HH | 9,000 | 12735045 |
| 747142 | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Faith Sandy Dim #J 3HH | 9,000 | 12735052 |
| 747098 | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 8HH | 9,000 | 12735047 |
| 747098Amendment | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 8HH | 9,000 | 12735047 |
| 747098Amendment | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 8HH | 9,000 | 12735047 |
| 747094 | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 7HH | 9,000 | 12735048 |
| 747094Amendment | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 7HH | 9,000 | 12735048 |
| 747094Amendment | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 7HH | 9,000 | 12735048 |
| 747092 | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 2HH | 9,000 | 12735051 |
| 747092Amendment | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 2HH | 9,000 | 12735051 |
| 747092Amendment | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 2HH | 9,000 | 12735051 |
| 747091 | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 5HH | 9,000 | 12735049 |
| 747091Amendment | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 5HH | 9,000 | 12735049 |
| 747091Amendment | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 5HH | 9,000 | 12735049 |
| 747085 | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 1HH | 9,000 | 12735050 |
| 747085Amendment | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 1HH | 9,000 | 12735050 |
| 747085Amendment | Sep 5, 2012 | Sep 5, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 1HH | 9,000 | 12735050 |
| 746381 | Sep 5, 2012 | Sep 5, 2012 | Anadarko E&P Company LP | Beinhorn Ranch #34HH | 9,000 | 12735033 |
| 747053 | Sep 4, 2012 | Sep 4, 2012 | Chesapeake Operating, Inc. | Faith Sandy Dim #J 2HH | 9,000 | 12735046 |
| 746951 | Aug 31, 2012 | Aug 31, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 6HH | 9,000 | 12735044 |
| 746951Amendment | Aug 31, 2012 | Aug 31, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 6HH | 9,000 | 12735044 |
| 746951Amendment | Aug 31, 2012 | Aug 31, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 6HH | 9,000 | 12735044 |
| 746948 | Aug 30, 2012 | Aug 30, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 4HH | 9,000 | 12735043 |
| 746948Amendment | Aug 30, 2012 | Aug 30, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 4HH | 9,000 | 12735043 |
| 746948Amendment | Aug 30, 2012 | Aug 30, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 4HH | 9,000 | 12735043 |
| 746947 | Aug 30, 2012 | Aug 30, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 3HH | 9,000 | 12735058 |
| 746947Amendment | Aug 30, 2012 | Aug 30, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 3HH | 9,000 | 12735058 |
| 746947Amendment | Aug 30, 2012 | Aug 30, 2012 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #C 3HH | 9,000 | 12735058 |
| 746888 | Aug 30, 2012 | Aug 30, 2012 | Anadarko E&P Company LP | Briscoe Cochina West Ranch #45HH | 8,800 | 12735042 |
| 746834 | Aug 29, 2012 | Aug 29, 2012 | Anadarko E&P Company LP | Briscoe Cochina West Ranch #38HH | 8,800 | 12735041 |
| 746535 | Aug 28, 2012 | Aug 28, 2012 | Blackbrush O & G, LLC | San Pedro Ranch #1060HH | 4,000 | 12735037 |
| 746535Amendment | Aug 28, 2012 | Aug 28, 2012 | Blackbrush O & G, LLC | San Pedro Ranch #1060HH | 4,000 | 12735037 |
| 746704 | Aug 27, 2012 | Aug 27, 2012 | Chesapeake Operating, Inc. | Walk a Jam Unit F Dim #3HH | 9,000 | 12735040 |
| 746576Amendment | Aug 24, 2012 | Aug 24, 2012 | Lewis Petro Properties, Inc. | Cotulla #29HH | 17,000 | 12735372 |
| 746566 | Aug 24, 2012 | Aug 24, 2012 | Anadarko E&P Company LP | Briscoe Cochina West Ranch #37HH | 8,800 | 12735039 |
| 746526Amendment | Aug 24, 2012 | Aug 24, 2012 | Lewis Petro Properties, Inc. | Cotulla #28HH | 17,000 | 12735338 |
| 746543 | Aug 23, 2012 | Aug 23, 2012 | Anadarko E&P Company LP | Briscoe Cochina West Ranch #36HH | 8,800 | 12735038 |
| 746404 | Aug 23, 2012 | Aug 23, 2012 | Newfield Exploration Company | Cmww A #4501HH | 8,000 | 12735036 |
| 745417 | Aug 23, 2012 | Aug 23, 2012 | Chesapeake Operating, Inc. | Berdoll Unit a Dim #1HH | 9,000 | 12735005 |
| 745417Amendment | Aug 23, 2012 | Aug 23, 2012 | Chesapeake Operating, Inc. | Berdoll Unit a Dim #1HH | 9,000 | 12735005 |
| 746384 | Aug 22, 2012 | Aug 22, 2012 | Anadarko E&P Company LP | Beinhorn Ranch #36HH | 9,000 | 12735034 |
| 746383 | Aug 22, 2012 | Aug 22, 2012 | Anadarko E&P Company LP | Beinhorn Ranch #35HH | 9,000 | 12735035 |
| 746383Amendment | Aug 22, 2012 | Aug 22, 2012 | Anadarko E&P Onshore LLC | Beinhorn Ranch #35HH | 9,000 | 12735035 |
| 746379 | Aug 22, 2012 | Aug 22, 2012 | Anadarko E&P Company LP | Beinhorn Ranch #33HH | 9,000 | 12735032 |
| 746359 | Aug 21, 2012 | Aug 21, 2012 | Chesapeake Operating, Inc. | Limmer Unit B Dim #2HH | 9,000 | 12735031 |
| 746129 | Aug 17, 2012 | Aug 17, 2012 | Shell Western E&P | Piloncillo #A 12HCH | 18,000 | 12735023 |
| 746132 | Aug 16, 2012 | Aug 16, 2012 | Shell Western E&P | Piloncillo #A 12HZH | 18,000 | 12735029 |
| 746131 | Aug 16, 2012 | Aug 16, 2012 | Shell Western E&P | Piloncillo #A 12HYH | 18,000 | 12735026 |
| 746130 | Aug 16, 2012 | Aug 16, 2012 | Shell Western E&P | Piloncillo #A 12HXH | 18,000 | 12735025 |
| 746128 | Aug 16, 2012 | Aug 16, 2012 | Shell Western E&P | Piloncillo #A 12HBH | 18,000 | 12735021 |
| 746127 | Aug 16, 2012 | Aug 16, 2012 | Shell Western E&P | Piloncillo #A 12HAH | 18,000 | 12735024 |
| 746053 | Aug 15, 2012 | Aug 15, 2012 | Anadarko E&P Company LP | Beinhorn Ranch #32HH | 9,000 | 12735022 |
| 746053Amendment | Aug 15, 2012 | Aug 15, 2012 | Anadarko E&P Onshore LLC | Beinhorn Ranch #32HH | 9,000 | 12735022 |
| 746052 | Aug 15, 2012 | Aug 15, 2012 | Anadarko E&P Company LP | Beinhorn Ranch #31HH | 9,000 | 12735019 |
| 746051 | Aug 15, 2012 | Aug 15, 2012 | Anadarko E&P Company LP | Beinhorn Ranch #30HH | 9,000 | 12735020 |
| 746050 | Aug 15, 2012 | Aug 15, 2012 | Anadarko E&P Company LP | Beinhorn Ranch #29HH | 9,000 | 12735018 |
| 746039 | Aug 15, 2012 | Aug 15, 2012 | Chesapeake Operating, Inc. | Cmww Unit B Dim #2HH | 9,000 | 12735028 |
| 745990 | Aug 15, 2012 | Aug 15, 2012 | Chesapeake Operating, Inc. | Faith San Pedro J Unit #B 1HH | 9,000 | 12735017 |
| 745932 | Aug 14, 2012 | Aug 14, 2012 | Chesapeake Operating, Inc. | Faith San Pedro X Unit #B 1HH | 9,000 | 12735015 |
| 745921 | Aug 14, 2012 | Aug 14, 2012 | Chesapeake Operating, Inc. | Faith-San Pedro #B 3HH | 9,000 | 12735014 |
| 745827 | Aug 14, 2012 | Aug 14, 2012 | Lewis Petro Properties, Inc. | Cotulla #30HH | 9,000 | 12735016 |
| 745827Amendment | Aug 14, 2012 | Aug 14, 2012 | Lewis Petro Properties, Inc. | Cotulla #30HH | 9,000 | 12735016 |
| 745873 | Aug 13, 2012 | Aug 13, 2012 | Chesapeake Operating, Inc. | Faith-San Pedro #B 4HH | 9,000 | 12735012 |
| 745819 | Aug 13, 2012 | Aug 13, 2012 | Chesapeake Operating, Inc. | TLW Ranch Dim` #A 1HH | 9,000 | 12735011 |
| 745867 | Aug 11, 2012 | Aug 11, 2012 | Texas American Resources Company | Bowman 6 #1HH | 7,435 | 12735013 |
| 745721 | Aug 10, 2012 | Aug 10, 2012 | Chesapeake Operating, Inc. | Walk a Jam Unit E Dim #4HH | 9,000 | 12735010 |
| 745721Amendment | Aug 10, 2012 | Aug 10, 2012 | Chesapeake Operating, Inc. | Walk a Jam Unit E Dim #4HH | 9,000 | 12735010 |
| 745686 | Aug 10, 2012 | Aug 10, 2012 | Blackbrush O & G, LLC | San Pedro Ranch #960HH | 4,000 | 12735009 |
| 745686Amendment | Aug 10, 2012 | Aug 10, 2012 | Blackbrush O & G, LLC | San Pedro Ranch #960HH | 4,000 | 12735009 |
| 744421 | Aug 10, 2012 | Aug 10, 2012 | Lewis Petro Properties, Inc. | Cotulla #25HH | 17,000 | 47942083 |
| 744420 | Aug 10, 2012 | Aug 10, 2012 | Lewis Petro Properties, Inc. | Cotulla #24HH | 17,000 | 47942084 |
| 744415 | Aug 10, 2012 | Aug 10, 2012 | Lewis Petro Properties, Inc. | Cotulla #23HH | 17,000 | 47942082 |
| 745592 | Aug 9, 2012 | Aug 9, 2012 | Chesapeake Operating, Inc. | Cmww Unit D Dim #1HH | 9,000 | 12735008 |