| 665063 | Jul 11, 2008 | Jul 11, 2008 | Quicksilver Resources Inc. | Wiggum, Ralph #14HH | 9,000 | 25133084 |
| 665061 | Jul 11, 2008 | Jul 11, 2008 | Quicksilver Resources Inc. | Wiggum, Ralph #13HH | 9,000 | 25133083 |
| 665042 | Jul 11, 2008 | Jul 11, 2008 | XTO Energy Inc. | Willie Lee Russell Unit #B 1HH | 12,000 | 25133082 |
| 665042Amendment | Jul 11, 2008 | Jul 11, 2008 | XTO Energy Inc. | Willie Lee Russell Unit #B 1HH | 12,000 | 25133082 |
| 664970 | Jul 11, 2008 | Jul 11, 2008 | Range Production Company | Jackson Deaver Unit #2HH | 9,000 | 25133081 |
| 664924 | Jul 11, 2008 | Jul 11, 2008 | Chesapeake Operating, Inc. | Skaggs #3HH | 9,000 | 25133079 |
| 664923 | Jul 11, 2008 | Jul 11, 2008 | Chesapeake Operating, Inc. | Skaggs #2HH | 9,000 | 25133078 |
| 662473 | Jul 11, 2008 | Jul 11, 2008 | Chesapeake Operating, Inc. | Quail Hollow #2HH | 9,000 | 25132989 |
| 664887 | Jul 10, 2008 | Jul 10, 2008 | Chesapeake Operating, Inc. | Airport #2HH | 9,000 | 25133076 |
| 664886 | Jul 10, 2008 | Jul 10, 2008 | Chesapeake Operating, Inc. | Airport #1HH | 9,000 | 25133075 |
| 664830 | Jul 10, 2008 | Jul 10, 2008 | EOG Resources, Inc. | Oaks Unit #1HH | 10,000 | 25133072 |
| 664869 | Jul 9, 2008 | Jul 9, 2008 | EOG Resources, Inc. | Raam Unit #4HH | 10,000 | 25133074 |
| 664841 | Jul 9, 2008 | Jul 9, 2008 | EOG Resources, Inc. | Oaks Unit #2HH | 10,000 | 25133073 |
| 664759 | Jul 9, 2008 | Jul 9, 2008 | Chesapeake Operating, Inc. | Upchurch #4HH | 9,000 | 25133070 |
| 664759Amendment | Jul 9, 2008 | Jul 9, 2008 | Chesapeake Operating, Inc. | Upchurch #4HH | 9,000 | 25133070 |
| 664729 | Jul 9, 2008 | Jul 9, 2008 | Chesapeake Operating, Inc. | Falvel #16HH | 9,000 | 25133066 |
| 664646 | Jul 9, 2008 | Jul 9, 2008 | Chesapeake Operating, Inc. | Little Hoss 5 #K 1HH | 9,000 | 25133064 |
| 664788 | Jul 8, 2008 | Jul 8, 2008 | Chesapeake Operating, Inc. | Davenport, Billy #7HH | 9,000 | 25133071 |
| 664756 | Jul 8, 2008 | Jul 8, 2008 | Chesapeake Operating, Inc. | Upchurch #1HH | 9,000 | 25133069 |
| 664583 | Jul 8, 2008 | Jul 8, 2008 | EOG Resources, Inc. | Brindley Unit #4HH | 10,000 | 25133061 |
| 662342 | Jul 8, 2008 | Jul 8, 2008 | Chief Oil & Gas LLC | Springwood Unit #2HH | 8,900 | 25132980 |
| 662321 | Jul 8, 2008 | Jul 8, 2008 | Chief Oil & Gas LLC | Springwood Unit #3HH | 8,900 | 25132979 |
| 664738 | Jul 7, 2008 | Jul 7, 2008 | Chesapeake Operating, Inc. | Allenco #3HH | 9,000 | 25133068 |
| 664737 | Jul 7, 2008 | Jul 7, 2008 | Chesapeake Operating, Inc. | Allenco #2HH | 9,000 | 25133067 |
| 664578 | Jul 7, 2008 | Jul 7, 2008 | EOG Resources, Inc. | Brindley Unit #3HH | 10,000 | 25133060 |
| 664564 | Jul 7, 2008 | Jul 7, 2008 | Chesapeake Operating, Inc. | Shada #3HH | 9,000 | 25133059 |
| 664657 | Jul 3, 2008 | Jul 3, 2008 | XTO Energy Inc. | Txi #A 2HH | 11,000 | 25133065 |
| 664657Amendment | Jul 3, 2008 | Jul 3, 2008 | XTO Energy Inc. | Txi #A 2HH | 11,000 | 25133065 |
| 664599 | Jul 3, 2008 | Jul 3, 2008 | Range Production Company | Hallman-Holmes Unit #1HH | 9,000 | 25133063 |
| 664584 | Jul 3, 2008 | Jul 3, 2008 | EOG Resources, Inc. | Brindley Unit #5HH | 10,000 | 25133062 |
| 664565 | Jul 3, 2008 | Jul 3, 2008 | Chesapeake Operating, Inc. | Upchurch #3HH | 9,000 | 25133058 |
| 664432 | Jul 1, 2008 | Jul 1, 2008 | XTO Energy Inc. | Freight Train B Unit #1HH | 11,000 | 25133057 |
| 664432Amendment | Jul 1, 2008 | Jul 1, 2008 | XTO Energy Inc. | Freight Train B Unit #1HH | 11,000 | 25133057 |
| 664375 | Jun 30, 2008 | Jun 30, 2008 | Chesapeake Operating, Inc. | Cordelia #1HH | 9,000 | 25133056 |
| 663522 | Jun 30, 2008 | Jun 30, 2008 | Chesapeake Operating, Inc. | Winscott #G 2HH | 9,000 | 25133033 |
| 663522Amendment | Jun 30, 2008 | Jun 30, 2008 | Chesapeake Operating, Inc. | Winscott #G 2HH | 9,000 | 25133033 |
| 642089Amendment | Jun 30, 2008 | Jun 30, 2008 | Chesapeake Operating, Inc. | Shaw #2HH | 9,000 | 25132019 |
| 664155 | Jun 27, 2008 | Jun 27, 2008 | Devon Energy Production Co, L.P. | Czajkowski, Bruno #7HH | 9,000 | 25133055 |
| 664031 | Jun 27, 2008 | Jun 27, 2008 | Chesapeake Operating, Inc. | Little Hoss #N 7HH | 9,000 | 25133047 |
| 663995 | Jun 27, 2008 | Jun 27, 2008 | Chesapeake Operating, Inc. | Little Hoss 6 #K 6HH | 9,000 | 25133044 |
| 664119 | Jun 26, 2008 | Jun 26, 2008 | North Texas Llano Operating Corp | Alvarado Isd #1HH | 9,000 | 25133053 |
| 664119Amendment | Jun 26, 2008 | Jun 26, 2008 | Titan Operating, LLC | Durwood #1HH | 9,000 | 25133053 |
| 663635 | Jun 26, 2008 | Jun 26, 2008 | EOG Resources, Inc. | Eagle Ford B Unit #8HH | 10,000 | 25133054 |
| 664035 | Jun 25, 2008 | Jun 25, 2008 | Chesapeake Operating, Inc. | Little Hoss #I 6HH | 9,000 | 25133049 |
| 664029 | Jun 25, 2008 | Jun 25, 2008 | Chesapeake Operating, Inc. | Little Hoss #N 2HH | 9,000 | 25133046 |
| 663897 | Jun 25, 2008 | Jun 25, 2008 | North Texas Llano Operating Corp | Hogan Acres #1HH | 9,000 | 25133041 |
| 663968 | Jun 24, 2008 | Jun 24, 2008 | Chesapeake Operating, Inc. | Forsberg #2HH | 9,000 | 25133045 |
| 663960 | Jun 24, 2008 | Jun 24, 2008 | EOG Resources, Inc. | Leonard Unit #8 | 10,000 | 25133050 |
| 663960Amendment | Jun 24, 2008 | Jun 24, 2008 | EOG Resources, Inc. | Leonard Unit #8HH | 10,000 | 25133050 |
| 663958 | Jun 24, 2008 | Jun 24, 2008 | EOG Resources, Inc. | Leonard Unit #7 | 10,000 | 25133048 |
| 663958Amendment | Jun 24, 2008 | Jun 24, 2008 | EOG Resources, Inc. | Leonard Unit #7HH | 10,000 | 25133048 |
| 663970 | Jun 23, 2008 | Jun 23, 2008 | EOG Resources, Inc. | Leonard Unit #9 | 10,000 | 25133043 |
| 663970Amendment | Jun 23, 2008 | Jun 23, 2008 | EOG Resources, Inc. | Leonard Unit #9HH | 10,000 | 25133043 |
| 663946 | Jun 23, 2008 | Jun 23, 2008 | Devon Energy Production Co, L.P. | T. L. Jones #1H | 9,000 | 25133042 |
| 663600 | Jun 21, 2008 | Jun 21, 2008 | Chesapeake Operating, Inc. | Shioleno #3HH | 9,000 | 25133037 |
| 663597 | Jun 21, 2008 | Jun 21, 2008 | Chesapeake Operating, Inc. | Shioleno #2HH | 9,000 | 25133036 |
| 663597Amendment | Jun 21, 2008 | Jun 21, 2008 | Chesapeake Operating, Inc. | Shioleno #2HH | 9,000 | 25133036 |
| 663594 | Jun 21, 2008 | Jun 21, 2008 | Chesapeake Operating, Inc. | Shioleno #1HH | 9,000 | 25133035 |
| 663543 | Jun 21, 2008 | Jun 21, 2008 | Chesapeake Operating, Inc. | South Lake #5HH | 9,000 | 25133038 |
| 663542 | Jun 21, 2008 | Jun 21, 2008 | Chesapeake Operating, Inc. | South Lake #4HH | 9,000 | 25133039 |
| 663523 | Jun 19, 2008 | Jun 19, 2008 | Chesapeake Operating, Inc. | Winscott #G 4HH | 9,000 | 25133032 |
| 663286 | Jun 18, 2008 | Jun 18, 2008 | Devon Energy Production Co, L.P. | A. D. Jackson "A" #3H | 9,000 | 25133028 |
| 663285 | Jun 18, 2008 | Jun 18, 2008 | Devon Energy Production Co, L.P. | A. D. Jackson "A" #2H | 9,000 | 25133027 |
| 663223 | Jun 18, 2008 | Jun 18, 2008 | Devon Energy Production Co, L.P. | Donald Bennett #11HH | 9,000 | 25133026 |
| 663216 | Jun 18, 2008 | Jun 18, 2008 | Devon Energy Production Co, L.P. | Circle R Partnership #22HH | 9,000 | 25133025 |
| 663204 | Jun 18, 2008 | Jun 18, 2008 | Chesapeake Operating, Inc. | Lee, W. R. #3HH | 9,000 | 25133029 |
| 663220 | Jun 17, 2008 | Jun 17, 2008 | Devon Energy Production Co, L.P. | Donald Bennett #10HH | 9,000 | 25133021 |
| 663220Amendment | Jun 17, 2008 | Jun 17, 2008 | Devon Energy Production Co, L.P. | Bennett, Donald #10HH | 9,000 | 25133021 |
| 663218 | Jun 17, 2008 | Jun 17, 2008 | Devon Energy Production Co, L.P. | Donald Bennett #9HH | 9,000 | 25133018 |
| 663215 | Jun 17, 2008 | Jun 17, 2008 | Devon Energy Production Co, L.P. | Circle R Partnership #21HH | 9,000 | 25133020 |
| 663213 | Jun 17, 2008 | Jun 17, 2008 | Devon Energy Production Co, L.P. | Circle R Partnership #20HH | 9,000 | 25133019 |
| 663163 | Jun 17, 2008 | Jun 17, 2008 | XTO Energy Inc. | Peggy Unit #A 2HH | 11,000 | 25133023 |
| 663163Amendment | Jun 17, 2008 | Jun 17, 2008 | XTO Energy Inc. | Peggy Unit #A 1HH | 11,000 | 25133023 |
| 663108 | Jun 17, 2008 | Jun 17, 2008 | Chesapeake Operating, Inc. | I G Kennon #2HH | 9,000 | 25133017 |
| 663086 | Jun 17, 2008 | Jun 17, 2008 | Chesapeake Operating, Inc. | Skaggs #1HH | 9,000 | 25133016 |
| 657651Amendment | Jun 17, 2008 | Jun 17, 2008 | EOG Resources, Inc. | Fry Unit #4HH | 10,000 | 25132756 |
| 662982 | Jun 13, 2008 | Jun 13, 2008 | Citrus Energy Corporation | Russell #2HH | 10,500 | 25133015 |
| 662982Amendment | Jun 13, 2008 | Jun 13, 2008 | Citrus Energy Corporation | Russell #2HH | 10,500 | 25133015 |
| 662941 | Jun 13, 2008 | Jun 13, 2008 | Chesapeake Operating, Inc. | Holland #4HH | 9,000 | 25133014 |
| 662940 | Jun 13, 2008 | Jun 13, 2008 | Chesapeake Operating, Inc. | Holland #3HH | 9,000 | 25133013 |
| 662940Amendment | Jun 13, 2008 | Jun 13, 2008 | Chesapeake Operating, Inc. | Holland #3HH | 9,000 | 25133013 |
| 662857 | Jun 13, 2008 | Jun 13, 2008 | Chesapeake Operating, Inc. | Ryan #4HH | 9,000 | 25133022 |
| 662856 | Jun 13, 2008 | Jun 13, 2008 | Chesapeake Operating, Inc. | Ryan #3HH | 9,000 | 25133012 |
| 662788 | Jun 13, 2008 | Jun 13, 2008 | Chesapeake Operating, Inc. | Holland #2HH | 9,000 | 25133010 |
| 662788Amendment | Jun 13, 2008 | Jun 13, 2008 | Chesapeake Operating, Inc. | Holland #2HH | 9,000 | 25133010 |
| 662788Amendment | Jun 13, 2008 | Jun 13, 2008 | Chesapeake Operating, Inc. | Holland #2HH | 9,000 | 25133010 |
| 662853 | Jun 12, 2008 | Jun 12, 2008 | Chesapeake Operating, Inc. | Ryan #2HH | 9,000 | 25133011 |
| 662786 | Jun 12, 2008 | Jun 12, 2008 | Chesapeake Operating, Inc. | Holland #1HH | 9,000 | 25133009 |
| 662786Amendment | Jun 12, 2008 | Jun 12, 2008 | Chesapeake Operating, Inc. | Holland #1HH | 9,000 | 25133009 |
| 662786Amendment | Jun 12, 2008 | Jun 12, 2008 | Chesapeake Operating, Inc. | Holland #1HH | 9,000 | 25133009 |
| 660551 | Jun 12, 2008 | Jun 12, 2008 | Devon Energy Production Co, L.P. | Armstrong, James #10HH | 9,000 | 25132902 |
| 662754 | Jun 11, 2008 | Jun 11, 2008 | Chesapeake Operating, Inc. | Stainless Steel Midge #6HH | 9,000 | 25133007 |
| 662749 | Jun 11, 2008 | Jun 11, 2008 | Chesapeake Operating, Inc. | Stainless Steel Midge #4HH | 9,000 | 25133008 |
| 662638 | Jun 10, 2008 | Jun 10, 2008 | XTO Energy Inc. | Rafter J Unit #A 1HH | 11,000 | 25133005 |
| 662638Amendment | Jun 10, 2008 | Jun 10, 2008 | XTO Energy Inc. | Rafter J Unit #A 1HH | 11,000 | 25133005 |
| 662609 | Jun 10, 2008 | Jun 10, 2008 | Devon Energy Production Co, L.P. | Arnold Pent #4HH | 9,000 | 25133004 |
| 662606 | Jun 10, 2008 | Jun 10, 2008 | EOG Resources, Inc. | Moran Unit #3HH | 10,000 | 25133003 |
| 662543 | Jun 10, 2008 | Jun 10, 2008 | Chesapeake Operating, Inc. | Bingham, Ann #5HH | 9,000 | 25133000 |
| 662542 | Jun 10, 2008 | Jun 10, 2008 | Chesapeake Operating, Inc. | Bingham, Ann #4HH | 9,000 | 25133001 |
| 662533 | Jun 10, 2008 | Jun 10, 2008 | Chesapeake Operating, Inc. | Trinity Forge #3HH | 9,000 | 25132999 |