| 626374 | Sep 25, 2006 | Sep 25, 2006 | Shell Western E&P | Slick, T. B. Estate #2D | 8,579 | 42734041 |
| 626108 | Sep 19, 2006 | Sep 19, 2006 | Kerr-McGee Oil & Gas Onshore LP | Chapotal Land Co. -A- #30 | 7,900 | 42734040 |
| 621536 | Sep 19, 2006 | Sep 19, 2006 | Wagner Oil Company | Garcia BA #15 | 8,350 | 42733992 |
| 621535 | Sep 19, 2006 | Sep 19, 2006 | Wagner Oil Company | Garcia BB #14 | 8,350 | 42733993 |
| 615670Amendment | Sep 19, 2006 | Sep 19, 2006 | Wagner Oil Company | Garcia BA #13 | 8,350 | 42733949 |
| 625923 | Sep 15, 2006 | Sep 15, 2006 | Houston Exploration Company, The | T. B. Slick Estate "B" 536 #213 | 7,500 | 42734039 |
| 625689 | Sep 11, 2006 | Sep 11, 2006 | Houston Exploration Company, The | T. B. Slick Estate 528-485 Unit #218 | 7,500 | 42734038 |
| 625630 | Sep 8, 2006 | Sep 8, 2006 | Kerr-McGee Oil & Gas Onshore LP | Frost National Bank -A- #11 | 10,500 | 42734037 |
| 625630Amendment | Sep 8, 2006 | Sep 8, 2006 | Kerr-McGee Oil & Gas Onshore LP | Frost National Bank -A- #11 | 10,500 | 42734037 |
| 625629 | Sep 8, 2006 | Sep 8, 2006 | Kerr-McGee Oil & Gas Onshore LP | Montalvo, I. V. -B- #15 | 7,800 | 42734036 |
| 625628 | Sep 8, 2006 | Sep 8, 2006 | Kerr-McGee Oil & Gas Onshore LP | De Garcia, B. G. #69 | 8,300 | 42734035 |
| 625480 | Sep 6, 2006 | Sep 6, 2006 | Petrohawk Operating Company | Cleopatra #7 | 12,500 | 42734034 |
| 625410 | Sep 6, 2006 | Sep 6, 2006 | Shell Western E&P | Slick, T.B. Estate #172 | 13,500 | 42734033 |
| 625365 | Sep 5, 2006 | Sep 5, 2006 | Kerr-McGee Oil & Gas Onshore LP | McKinney, Amanda #37 | 9,500 | 42734032 |
| 625364 | Sep 5, 2006 | Sep 5, 2006 | Kerr-McGee Oil & Gas Onshore LP | McKinney, Amanda #34 | 7,000 | 42734031 |
| 625364Amendment | Sep 5, 2006 | Sep 5, 2006 | Kerr-McGee Oil & Gas Onshore LP | McKinney, Amanda #34 | 7,000 | 42734031 |
| 625343 | Sep 1, 2006 | Sep 1, 2006 | Metano Energy, LP | Black Stone Minerals #1 | 8,000 | 42734030 |
| 625266 | Aug 31, 2006 | Aug 31, 2006 | Kerr-McGee Oil & Gas Onshore LP | Montalvo, N. R. #16 | 8,000 | 42734029 |
| 625265 | Aug 31, 2006 | Aug 31, 2006 | Kerr-McGee Oil & Gas Onshore LP | Hall, J. F. State #28 | 7,800 | 42734028 |
| 625265Amendment | Aug 31, 2006 | Aug 31, 2006 | Kerr-McGee Oil & Gas Onshore LP | Hall, J. F. State #28 | 7,800 | 42734028 |
| 625265Amendment | Aug 31, 2006 | Aug 31, 2006 | Kerr-McGee Oil & Gas Onshore LP | Hall, J. F. State #28 | 7,800 | 42734028 |
| 625232 | Aug 31, 2006 | Aug 31, 2006 | EOG Resources, Inc. | Ramey #1 | 9,500 | 42734027 |
| 625232Amendment | Aug 31, 2006 | Aug 31, 2006 | EOG Resources, Inc. | Ramey #1 | 9,500 | 42734027 |
| 621533 | Aug 29, 2006 | Aug 29, 2006 | Wagner Oil Company | Garcia BB #12 | 8,350 | 42733991 |
| 624983 | Aug 28, 2006 | Aug 28, 2006 | Kerr-McGee Oil & Gas Onshore LP | Hermann, E #10 | 6,882 | 42733966 |
| 624827 | Aug 23, 2006 | Aug 23, 2006 | EOG Resources, Inc. | Billups #1 | 8,500 | 42734026 |
| 624275 | Aug 21, 2006 | Aug 21, 2006 | El Paso E & P Company, L. P. | USA #307 | 9,530 | 42732593 |
| 623214 | Aug 18, 2006 | Aug 18, 2006 | Houston Exploration Company, The | Slick, T. B. Estate "B" 536 #225 | 8,100 | 42734014 |
| 623211 | Aug 18, 2006 | Aug 18, 2006 | Houston Exploration Company, The | Slick, T. B. Estate "B" 536 #224 | 8,100 | 42734013 |
| 623188 | Aug 18, 2006 | Aug 18, 2006 | Houston Exploration Company, The | Slick, T. B. Estate "B" 222 #221 | 6,700 | 42734010 |
| 624363 | Aug 15, 2006 | Aug 15, 2006 | EOG Resources, Inc. | Canales Family Trust #1 | 10,000 | 42734025 |
| 624095 | Aug 10, 2006 | Aug 10, 2006 | Kerr-McGee Oil & Gas Onshore LP | Hermann, E. #12 | 9,500 | 42734024 |
| 624095Amendment | Aug 10, 2006 | Aug 10, 2006 | Kerr-McGee Oil & Gas Onshore LP | Hermann, E. #12 | 9,500 | 42734024 |
| 623919 | Aug 7, 2006 | Aug 7, 2006 | Newgulf Petroleum, LLC | Margo #10 | 5,000 | 42734022 |
| 623888 | Aug 4, 2006 | Aug 4, 2006 | Houston Exploration Company, The | T.B. Slick Estate "B" 536 #227 | 8,000 | 42734021 |
| 623797 | Aug 3, 2006 | Aug 3, 2006 | Kerr-McGee Oil & Gas Onshore LP | De Garcia, B.G. #59 | 6,810 | 42733910 |
| 623619 | Aug 1, 2006 | Aug 1, 2006 | Metano Energy, LP | Semmes #1 | 9,000 | 42734020 |
| 623503 | Aug 1, 2006 | Aug 1, 2006 | EOG Resources, Inc. | Valdez, Etica #2 | 10,000 | 42734019 |
| 623352 | Jul 27, 2006 | Jul 27, 2006 | Petrohawk Operating Company | Cleopatra #6 | 12,500 | 42734017 |
| 623352Amendment | Jul 27, 2006 | Jul 27, 2006 | Petrohawk Operating Company | Cleopatra #6 | 12,500 | 42734017 |
| 623351 | Jul 27, 2006 | Jul 27, 2006 | Petrohawk Operating Company | Cleopatra #5 | 12,500 | 42734016 |
| 623351Amendment | Jul 27, 2006 | Jul 27, 2006 | Petrohawk Operating Company | Cleopatra #5 | 12,500 | 42734016 |
| 623349 | Jul 27, 2006 | Jul 27, 2006 | Shell Western E&P | Slick, T.B. Estate #171 | 13,000 | 42734018 |
| 623308 | Jul 27, 2006 | Jul 27, 2006 | Houston Exploration Company, The | Slick, T. B. Estate "a" 527 #226 | 9,000 | 42734015 |
| 622895 | Jul 27, 2006 | Jul 27, 2006 | El Paso Production Oil & Gas Co. | USA #2014 | 12,700 | 42733278 |
| 622895Amendment | Jul 27, 2006 | Jul 27, 2006 | El Paso E & P Company, L. P. | USA #2014 | 12,700 | 42733278 |
| 623200 | Jul 26, 2006 | Jul 26, 2006 | Houston Exploration Company, The | Slick, T. B. Estate "C" 221 #215 | 6,300 | 42734011 |
| 623200Amendment | Jul 26, 2006 | Jul 26, 2006 | Houston Exploration Company, The | Slick, T. B. Estate "C" 221 #215 | 6,300 | 42734011 |
| 622810 | Jul 26, 2006 | Jul 26, 2006 | Samson Lone Star LP | Bentsen IV #3 | 9,500 | 42734006 |
| 623207 | Jul 25, 2006 | Jul 25, 2006 | Kerr-McGee Oil & Gas Onshore LP | Alvarez-Hinojosa Gas Unit #8 | 9,900 | 42734012 |
| 623102 | Jul 25, 2006 | Jul 25, 2006 | Newgulf Petroleum, LLC | Margo #9 | 5,000 | 42734009 |
| 623102Amendment | Jul 25, 2006 | Jul 25, 2006 | Newgulf Petroleum, LLC | Margo #9 | 5,000 | 42734009 |
| 623109 | Jul 24, 2006 | Jul 24, 2006 | Houston Exploration Company, The | Slick, T. B. Estate "a" 229 #214 | 9,000 | 42734008 |
| 622994 | Jul 24, 2006 | Jul 24, 2006 | Kerr-McGee Oil & Gas Onshore LP | De Garcia, B. G. #68 | 8,400 | 42734007 |
| 622943 | Jul 21, 2006 | Jul 21, 2006 | Ascent Operating, LP | Garza-Hitchcock et al G. U. #9 | 10,600 | 42734005 |
| 622941 | Jul 21, 2006 | Jul 21, 2006 | Ascent Operating, LP | Garza-Hitchcock el al G. U. #10 | 10,500 | 42734004 |
| 621658 | Jul 21, 2006 | Jul 21, 2006 | Kerr-McGee Oil & Gas Onshore LP | Alvarez-Hinojosa Gas Unit #6 | 8,600 | 42733996 |
| 622935 | Jul 20, 2006 | Jul 20, 2006 | Kerr-McGee Oil & Gas Onshore LP | Frost National Bank -A- #10 | 10,000 | 42734003 |
| 622643 | Jul 19, 2006 | Jul 19, 2006 | Trap Rock Oil, Ltd. | La Brisa Ranch / State 542-B #6 | 8,000 | 42731262 |
| 622468 | Jul 13, 2006 | Jul 13, 2006 | Metano Energy, LP | Garcia, M. S.T. #1 | 13,500 | 42732978 |
| 622425 | Jul 13, 2006 | Jul 13, 2006 | Wagner Oil Company | Garcia A #11 | 8,250 | 42734002 |
| 621971 | Jul 7, 2006 | Jul 7, 2006 | Trap Rock Oil, Ltd. | La Brisa Ranch / State 542 #17 | 5,350 | 42703612 |
| 622061 | Jul 6, 2006 | Jul 6, 2006 | Kerr-McGee Oil & Gas Onshore LP | Garcia L&L Co. -C- #17 | 9,700 | 42734001 |
| 621894 | Jul 6, 2006 | Jul 6, 2006 | Trap Rock Oil, Ltd. | La Brisa Ranch / State 542 #16 | 5,500 | 42703614 |
| 621978 | Jul 3, 2006 | Jul 3, 2006 | Bommer Engineering Co. | Gutierrez #4 | 7,100 | 42734000 |
| 621978Amendment | Jul 3, 2006 | Jul 3, 2006 | Thorp Petroleum Corporation | Gutierrez #4 | 7,100 | 42734000 |
| 621978Amendment | Jul 3, 2006 | Jul 3, 2006 | Thorp Petroleum Corporation | Gutierrez #4 | 7,100 | 42734000 |
| 621968 | Jul 3, 2006 | Jul 3, 2006 | EOG Resources, Inc. | McClure North #2 | 11,500 | 42733999 |
| 621773 | Jun 29, 2006 | Jun 29, 2006 | EOG Resources, Inc. | Billups #3 | 8,500 | 42733997 |
| 621642 | Jun 29, 2006 | Jun 29, 2006 | Reichmann Petroleum Corp. | Hastings-Lopez #1 | 16,200 | 42733998 |
| 621642Amendment | Jun 29, 2006 | Jun 29, 2006 | Reichmann Petroleum Corp. | Hastings-Lopez #1 | 16,200 | 42733998 |
| 621642Amendment | Jun 29, 2006 | Jun 29, 2006 | Drillmar Operating Company | Hastings-Lopez #1 | 16,200 | 42733998 |
| 621642Amendment | Jun 29, 2006 | Jun 29, 2006 | Drillmar Operating Company | Hastings-Lopez #1 | 16,200 | 42733998 |
| 621630 | Jun 27, 2006 | Jun 27, 2006 | Kerr-McGee Oil & Gas Onshore LP | De Garcia, B. G. #67 | 8,500 | 42733995 |
| 621630Amendment | Jun 27, 2006 | Jun 27, 2006 | Kerr-McGee Oil & Gas Onshore LP | De Garcia, B. G. #67 | 8,500 | 42733995 |
| 621558 | Jun 26, 2006 | Jun 26, 2006 | Kerr-McGee Oil & Gas Onshore LP | De Garcia, B. G. #66 | 8,400 | 42733994 |
| 621497 | Jun 23, 2006 | Jun 23, 2006 | Kerr-McGee Oil & Gas Onshore LP | Garcia Land & Livestock Co. -A- #16 | 3,400 | 42704043 |
| 621494 | Jun 23, 2006 | Jun 23, 2006 | Kerr-McGee Oil & Gas Onshore LP | Alvarez-Hinojosa Gas Unit #9 | 9,400 | 42733990 |
| 621494Amendment | Jun 23, 2006 | Jun 23, 2006 | Kerr-McGee Oil & Gas Onshore LP | Alvarez-Hinojosa Gas Unit #9 | 9,400 | 42733990 |
| 621423 | Jun 22, 2006 | Jun 22, 2006 | Shell Western E&P | Slick, T. B. Estate #169 | 13,600 | 42733989 |
| 620063 | Jun 22, 2006 | Jun 22, 2006 | Houston Exploration Company, The | T. B. Slick Estate "a" 485 #212 | 8,500 | 42733976 |
| 621105 | Jun 16, 2006 | Jun 16, 2006 | Smith Production Inc. | Slick State "B" #9 | 12,000 | 42733987 |
| 621103 | Jun 16, 2006 | Jun 16, 2006 | Smith Production Inc. | Slick State #3 | 12,000 | 42733988 |
| 621030 | Jun 15, 2006 | Jun 15, 2006 | Houston Exploration Company, The | T. B. Slick Estate "E" 537 #222 | 6,700 | 42733986 |
| 621030Amendment | Jun 15, 2006 | Jun 15, 2006 | Houston Exploration Company, The | T. B. Slick Estate "E" 537 #222 | 7,900 | 42733986 |
| 621030Amendment | Jun 15, 2006 | Jun 15, 2006 | Houston Exploration Company, The | T. B. Slick Estate 537-222 Unit #222 | 7,900 | 42733986 |
| 620996 | Jun 14, 2006 | Jun 14, 2006 | Houston Exploration Company, The | T. B. Slick Estate "B-222" #220 | 6,700 | 42733985 |
| 620758 | Jun 12, 2006 | Jun 12, 2006 | Houston Exploration Company, The | T. B. Slick Estate "E" 537 #216 | 8,300 | 42733984 |
| 620758Amendment | Jun 12, 2006 | Jun 12, 2006 | Houston Exploration Company, The | T. B. Slick Estate "E" 537 #216 | 8,300 | 42733984 |
| 620758Amendment | Jun 12, 2006 | Jun 12, 2006 | Houston Exploration Company, The | Slick, T. B. Estate "E" 537 #216 | 8,300 | 42733984 |
| 620658 | Jun 8, 2006 | Jun 8, 2006 | BPL Exploration, Ltd. | Guerra, NB #1 | 2,500 | 42733983 |
| 620658Amendment | Jun 8, 2006 | Jun 8, 2006 | BPL Exploration, Ltd. | Guerra, NB #1 | 2,500 | 42733983 |
| 620534 | Jun 6, 2006 | Jun 6, 2006 | Metano Energy, LP | Gutierrez Gas Unit #1 | 9,700 | 42733982 |
| 620534Amendment | Jun 6, 2006 | Jun 6, 2006 | Metano Energy, LP | Gutierrez Gas Unit #1 | 9,700 | 42733982 |
| 620496 | Jun 6, 2006 | Jun 6, 2006 | Kerr-McGee Oil & Gas Onshore LP | Alvarez-Hinojosa Gas Unit #7 | 9,000 | 42733981 |
| 620052 | Jun 2, 2006 | Jun 2, 2006 | Houston Exploration Company, The | T. B. Slick Estate "B" 232 #180 | 5,300 | 42732621 |
| 620230 | Jun 1, 2006 | Jun 1, 2006 | Houston Exploration Company, The | Slick, T. B. Estate "a" 529 #219 | 7,000 | 42733980 |
| 620156 | May 31, 2006 | May 31, 2006 | Houston Exploration Company, The | T. B. Slick Estate "a" 231 #217 | 7,500 | 42733979 |
| 620114 | May 31, 2006 | May 31, 2006 | Lighthouse Exploration, Inc. | Edgerton #1 | 9,000 | 42733978 |
| 620102 | May 31, 2006 | May 31, 2006 | Kerr-McGee Oil & Gas Onshore LP | Hermann, E. #11 | 9,100 | 42733977 |