| 651053 | Dec 15, 2007 | Dec 15, 2007 | Legend Natural Gas III, LP | Galvan Ranch P6 #1 | 8,000 | 47940052 |
| 651052 | Dec 15, 2007 | Dec 15, 2007 | Legend Natural Gas III, LP | Galvan Ranch P13 #1 | 8,000 | 47940050 |
| 651051 | Dec 15, 2007 | Dec 15, 2007 | Legend Natural Gas III, LP | Galvan Ranch P12 #1 | 8,000 | 47940049 |
| 651051Amendment | Dec 15, 2007 | Dec 15, 2007 | Legend Natural Gas III, LP | Galvan Ranch P12 #1 | 8,000 | 47940049 |
| 651050 | Dec 15, 2007 | Dec 15, 2007 | Legend Natural Gas III, LP | Galvan Ranch P11 #1 | 8,000 | 47940048 |
| 651049 | Dec 15, 2007 | Dec 15, 2007 | Legend Natural Gas III, LP | Galvan Ranch P7 #1 | 8,000 | 47940047 |
| 651048 | Dec 15, 2007 | Dec 15, 2007 | Legend Natural Gas III, LP | Galvan Ranch P10 #1 | 8,000 | 47940046 |
| 651047 | Dec 15, 2007 | Dec 15, 2007 | Legend Natural Gas III, LP | Galvan Ranch P3 #1 | 8,000 | 47940045 |
| 651046 | Dec 15, 2007 | Dec 15, 2007 | Legend Natural Gas III, LP | Galvan Ranch P2 #1 | 8,000 | 47940044 |
| 651045 | Dec 15, 2007 | Dec 15, 2007 | Legend Natural Gas III, LP | Galvan Ranch P1 #1 | 8,000 | 47940043 |
| 651045Amendment | Dec 15, 2007 | Dec 15, 2007 | Legend Natural Gas III, LP | Galvan Ranch P1 #1 | 8,000 | 47940043 |
| 651044 | Dec 15, 2007 | Dec 15, 2007 | Virtex Petroleum Company, Inc. | Manry-State of Texas 1138 #5 | 7,900 | 47940041 |
| 651043 | Dec 15, 2007 | Dec 15, 2007 | Legend Natural Gas III, LP | Galvan Ranch N10 #1 | 8,000 | 47940042 |
| 648944 | Dec 13, 2007 | Dec 13, 2007 | Killam Oil Co., Ltd. | Bruni-Leyendecker #5 | 5,400 | 47932822 |
| 650702 | Dec 12, 2007 | Dec 12, 2007 | Rosetta Resources Operating LP | South Callaghan Ranch #286 | 8,850 | 47940040 |
| 650660 | Dec 12, 2007 | Dec 12, 2007 | Rosetta Resources Operating LP | South Callaghan Ranch #287 | 7,950 | 47940038 |
| 650566 | Dec 11, 2007 | Dec 11, 2007 | Conocophillips Company | Benavides, Rosa V. E5 #113 | 9,600 | 47940035 |
| 650571 | Dec 8, 2007 | Dec 8, 2007 | Conocophillips Company | B.M.T. C #9 | 10,200 | 47940036 |
| 650569 | Dec 8, 2007 | Dec 8, 2007 | Conocophillips Company | Vaquillas Ranch A #231 | 13,370 | 47940037 |
| 650518 | Dec 8, 2007 | Dec 8, 2007 | Rosetta Resources Operating LP | South Callaghan Ranch #288 | 7,630 | 47940034 |
| 650466 | Dec 8, 2007 | Dec 8, 2007 | Lewis Petro Properties, Inc. | Palafox Exploration Co. 2292 #20 | 7,200 | 47940033 |
| 650460 | Dec 7, 2007 | Dec 7, 2007 | Lewis Petro Properties, Inc. | Palafox Exploration Co. 876 #17 | 7,200 | 47940032 |
| 650456 | Dec 7, 2007 | Dec 7, 2007 | Lewis Petro Properties, Inc. | Palafox Exploration Co. 2182 #54 | 7,200 | 47940031 |
| 650446 | Dec 7, 2007 | Dec 7, 2007 | St. Mary Land & Exploration Co. | Gates Ranch "E" #705A | 5,850 | 47940030 |
| 650340 | Dec 7, 2007 | Dec 7, 2007 | St. Mary Land & Exploration Co. | Gates Ranch "E" #805A | 6,900 | 47940029 |
| 650223 | Dec 5, 2007 | Dec 5, 2007 | Virtex Petroleum Company, Inc. | Manry 2292 #16 | 7,800 | 47940026 |
| 650227 | Dec 4, 2007 | Dec 4, 2007 | Virtex Petroleum Company, Inc. | Manry 2292 #17 | 7,800 | 47940028 |
| 650224 | Dec 4, 2007 | Dec 4, 2007 | Laredo Energy | Barrera-Leyendecker G.U. No. 1 #4 | 10,500 | 47940027 |
| 650190 | Dec 3, 2007 | Dec 3, 2007 | Lewis Petro Properties, Inc. | Palafox Exploration Co. 2292 #22 | 7,200 | 47940025 |
| 650181 | Dec 3, 2007 | Dec 3, 2007 | Lewis Petro Properties, Inc. | Palafox Exploration Co. 110 #13 | 7,200 | 47940024 |
| 650081 | Nov 30, 2007 | Nov 30, 2007 | Rosetta Resources Operating LP | South Callaghan Ranch #284 | 8,520 | 47940023 |
| 650050 | Nov 30, 2007 | Nov 30, 2007 | St. Mary Land & Exploration Co. | Briscoe "C" #1127 | 5,850 | 47940022 |
| 650040 | Nov 30, 2007 | Nov 30, 2007 | Killam Oil Co., Ltd. | Killam, O. W. #10 | 1,600 | 47940020 |
| 650012 | Nov 30, 2007 | Nov 30, 2007 | St. Mary Land & Exploration Co. | Briscoe "B" #1166 | 6,000 | 47940016 |
| 650042 | Nov 29, 2007 | Nov 29, 2007 | Killam Oil Co., Ltd. | O.W. Killam #12 | 1,600 | 47940021 |
| 650041 | Nov 29, 2007 | Nov 29, 2007 | Killam Oil Co., Ltd. | O.W. Killam #11 | 1,600 | 47940019 |
| 650039 | Nov 29, 2007 | Nov 29, 2007 | Killam Oil Co., Ltd. | K & H Fee 942 #5R | 8,000 | 47940018 |
| 650037 | Nov 29, 2007 | Nov 29, 2007 | St. Mary Land & Exploration Co. | Briscoe "G" #1044 | 6,050 | 47940017 |
| 650037Amendment | Nov 29, 2007 | Nov 29, 2007 | St. Mary Land & Exploration Co. | Briscoe "G" #1044 | 6,050 | 47940017 |
| 649920 | Nov 28, 2007 | Nov 28, 2007 | Rosetta Resources Operating LP | South Callaghan Ranch #285 | 7,750 | 47940015 |
| 649376 | Nov 28, 2007 | Nov 28, 2007 | St. Mary Land & Exploration Co. | Briscoe "E" #1086 | 5,000 | 47939989 |
| 649369 | Nov 27, 2007 | Nov 27, 2007 | St. Mary Land & Exploration Co. | Briscoe "E" #1076 | 5,000 | 47939988 |
| 649829 | Nov 26, 2007 | Nov 26, 2007 | EOG Resources, Inc. | Slator Ranch #Z 2 | 11,000 | 47940014 |
| 649683 | Nov 26, 2007 | Nov 26, 2007 | Conocophillips Company | V & W Ranch #1 | 11,700 | 47940013 |
| 649365 | Nov 26, 2007 | Nov 26, 2007 | St. Mary Land & Exploration Co. | Briscoe "E" #1066 | 5,000 | 47939987 |
| 649628 | Nov 21, 2007 | Nov 21, 2007 | Lewis Petro Properties, Inc. | Leyendecker-Kone 1377 E #22 | 7,800 | 47940011 |
| 648085 | Nov 21, 2007 | Nov 21, 2007 | Rosetta Resources Operating LP | South Callaghan Ranch #280 | 9,150 | 47939964 |
| 649561 | Nov 19, 2007 | Nov 19, 2007 | Legend Natural Gas III, LP | Galvan Ranch N11 #1 | 8,000 | 47940009 |
| 649556 | Nov 19, 2007 | Nov 19, 2007 | Legend Natural Gas III, LP | Galvan Ranch N9 #1 | 8,000 | 47940010 |
| 649553 | Nov 19, 2007 | Nov 19, 2007 | Legend Natural Gas III, LP | Galvan Ranch N8 #1 | 8,000 | 47940008 |
| 649553Amendment | Nov 19, 2007 | Nov 19, 2007 | Legend Natural Gas III, LP | Galvan Ranch N8 #1 | 8,000 | 47940008 |
| 649549 | Nov 19, 2007 | Nov 19, 2007 | Legend Natural Gas III, LP | Galvan Ranch N5 #1 | 8,000 | 47940005 |
| 649523 | Nov 19, 2007 | Nov 19, 2007 | Lewis Petro Properties, Inc. | Beasley Welhausen State 105 #77 | 7,200 | 47940012 |
| 649552 | Nov 17, 2007 | Nov 17, 2007 | Legend Natural Gas III, LP | Galvan Ranch N7 #1 | 8,000 | 47940007 |
| 649551 | Nov 17, 2007 | Nov 17, 2007 | Legend Natural Gas III, LP | Galvan Ranch N6 #1 | 8,000 | 47940006 |
| 649547 | Nov 17, 2007 | Nov 17, 2007 | Legend Natural Gas III, LP | Galvan Ranch N4 #1 | 8,000 | 47940004 |
| 649545 | Nov 17, 2007 | Nov 17, 2007 | Legend Natural Gas III, LP | Galvan Ranch N3 #1 | 8,000 | 47940003 |
| 649543 | Nov 17, 2007 | Nov 17, 2007 | Legend Natural Gas III, LP | Galvan Ranch N2 #1 | 8,000 | 47940002 |
| 649542 | Nov 17, 2007 | Nov 17, 2007 | Legend Natural Gas III, LP | Galvan Ranch N1 #1 | 8,000 | 47940001 |
| 649493 | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | F.J. Gill #29 | 10,700 | 47939998 |
| 649484 | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | F.J. Gill #26 | 10,700 | 47939997 |
| 649458 | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | F.J. Gill #24 | 10,700 | 47939994 |
| 649451 | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | F.J. Gill #23 | 10,700 | 47939993 |
| 649450 | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | Gill, F. J. #22 | 10,700 | 47939992 |
| 649450Amendment | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | Gill, F. J. #22 | 10,700 | 47939992 |
| 649444 | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | Gill, F. J. #21 | 10,700 | 47939996 |
| 649444Amendment | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | Gill, F. J. #21 | 11,300 | 47939996 |
| 649395 | Nov 16, 2007 | Nov 16, 2007 | Conocophillips Company | Carr #149 | 10,650 | 47939991 |
| 649389 | Nov 16, 2007 | Nov 16, 2007 | Blackbrush O & G, Inc. | Gates 05D #4012 | 10,500 | 47939990 |
| 649345 | Nov 16, 2007 | Nov 16, 2007 | St. Mary Land & Exploration Co. | Briscoe "E" #1067 | 5,000 | 47939986 |
| 649345Amendment | Nov 16, 2007 | Nov 16, 2007 | St. Mary Land & Exploration Co. | Briscoe "E" #1067 | 5,010 | 47939986 |
| 649337 | Nov 15, 2007 | Nov 15, 2007 | Virtex Petroleum Company, Inc. | Manry-State of Texas 1138 #3 | 7,900 | 47939985 |
| 649335 | Nov 15, 2007 | Nov 15, 2007 | Virtex Petroleum Company, Inc. | Manry-State of Texas 1138 #2 | 7,900 | 47939984 |
| 649153 | Nov 15, 2007 | Nov 15, 2007 | EOG Resources, Inc. | Moreno GU #2HH | 13,000 | 47939982 |
| 649101 | Nov 13, 2007 | Nov 13, 2007 | Lewis Petro Properties, Inc. | Palafox Exploration Co. 2182 #70 | 7,200 | 47939983 |
| 649126 | Nov 12, 2007 | Nov 12, 2007 | Lewis Petro Properties, Inc. | Beasley Welhausen State 105 #72 | 7,200 | 47939981 |
| 649123 | Nov 12, 2007 | Nov 12, 2007 | Lewis Petro Properties, Inc. | Beasley Welhausen State 105 #73 | 7,200 | 47939980 |
| 649075 | Nov 12, 2007 | Nov 12, 2007 | Rosetta Resources Operating LP | South Callaghan Ranch #283 | 9,000 | 47939979 |
| 649028 | Nov 12, 2007 | Nov 12, 2007 | Laredo Energy | Villarreal et Al #1 | 13,000 | 47939978 |
| 648986 | Nov 9, 2007 | Nov 9, 2007 | St. Mary Land & Exploration Co. | Gates Ranch FGH #1005 | 5,850 | 47939977 |
| 648893 | Nov 8, 2007 | Nov 8, 2007 | Killam Oil Co., Ltd. | Killam Hurd McLean 121 #8 | 15,000 | 47939976 |
| 648730 | Nov 7, 2007 | Nov 7, 2007 | Lewis Petro Properties, Inc. | Palafox Exploration Co. 876 #15 | 7,200 | 47939974 |
| 648759 | Nov 6, 2007 | Nov 6, 2007 | Lewis Petro Properties, Inc. | Owen #5 | 8,000 | 47939975 |
| 648610 | Nov 6, 2007 | Nov 6, 2007 | Lewis Petro Properties, Inc. | Booth Unocal "H" #12UH | 12,000 | 47939973 |
| 648591 | Nov 5, 2007 | Nov 5, 2007 | Virtex Petroleum Company, Inc. | Manry 2292 #15 | 7,900 | 47939972 |
| 648403 | Nov 1, 2007 | Nov 1, 2007 | St. Mary Land & Exploration Co. | Briscoe "E" #1071 | 4,500 | 47939971 |
| 648347 | Oct 30, 2007 | Oct 30, 2007 | EOG Resources, Inc. | Vaquillas Borrego #28HH | 12,000 | 47939970 |
| 648334 | Oct 30, 2007 | Oct 30, 2007 | Rosetta Resources Operating LP | El Corazon Ranch #14 | 8,008 | 47939788 |
| 648231 | Oct 29, 2007 | Oct 29, 2007 | Conocophillips Company | Lundell #98 | 9,420 | 47939969 |
| 648221 | Oct 26, 2007 | Oct 26, 2007 | Rosetta Resources Operating LP | South Callaghan Ranch #281 | 10,030 | 47939968 |
| 648203 | Oct 25, 2007 | Oct 25, 2007 | Conocophillips Company | Warren, W. K. #3 | 10,105 | 47939967 |
| 648192 | Oct 25, 2007 | Oct 25, 2007 | Conocophillips Company | B.M.T. #197 | 9,000 | 47939966 |
| 648028 | Oct 25, 2007 | Oct 25, 2007 | Rosetta Resources Operating LP | Barnes Estate #6 | 8,180 | 47939965 |
| 648053 | Oct 23, 2007 | Oct 23, 2007 | Lewis Petro Properties, Inc. | Owen 4 #3 | 7,600 | 47939963 |
| 647962 | Oct 19, 2007 | Oct 19, 2007 | Killam Oil Co., Ltd. | K & H Fee 942 #5 | 8,000 | 47939962 |
| 647876 | Oct 19, 2007 | Oct 19, 2007 | Lewis Petro Properties, Inc. | Palafox Exploration Co. 2182 #81 | 7,200 | 47939961 |
| 647806 | Oct 18, 2007 | Oct 18, 2007 | Legend Natural Gas III, LP | Galvan Ranch J2 #1 | 8,000 | 47939959 |
| 647805 | Oct 18, 2007 | Oct 18, 2007 | Legend Natural Gas III, LP | Galvan Ranch J4 #1 | 8,000 | 47939958 |
| 647804 | Oct 18, 2007 | Oct 18, 2007 | Legend Natural Gas III, LP | Galvan Ranch J5 #1 | 8,000 | 47939957 |
| 647804Amendment | Oct 18, 2007 | Oct 18, 2007 | Legend Natural Gas III, LP | Galvan Ranch J5 #1 | 8,000 | 47939957 |