| 661898Amendment | Aug 28, 2008 | Aug 28, 2008 | Devon Energy Production Co, L.P. | Bruno Czajkowski #6HH | 9,000 | 25132946 |
| 668498 | Aug 27, 2008 | Aug 27, 2008 | Chesapeake Operating, Inc. | Una Hyral #4HH | 9,000 | 25133232 |
| 668536 | Aug 26, 2008 | Aug 26, 2008 | Devon Energy Production Co, L.P. | Atlas, J. J. #3RH | 9,000 | 25133230 |
| 668494 | Aug 26, 2008 | Aug 26, 2008 | Chesapeake Operating, Inc. | Una Hyral #2HH | 9,000 | 25133231 |
| 668494Amendment | Aug 26, 2008 | Aug 26, 2008 | Chesapeake Operating, Inc. | Una Hyral #2HH | 9,000 | 25133231 |
| 668488 | Aug 26, 2008 | Aug 26, 2008 | Chesapeake Operating, Inc. | Kenah #4HH | 9,000 | 25133229 |
| 668487 | Aug 26, 2008 | Aug 26, 2008 | Chesapeake Operating, Inc. | Kenah #2HH | 9,000 | 25133225 |
| 668480 | Aug 26, 2008 | Aug 26, 2008 | EOG Resources, Inc. | Hudgins Unit #2HH | 10,000 | 25133236 |
| 668476 | Aug 26, 2008 | Aug 26, 2008 | EOG Resources, Inc. | Hudgins Unit #1HH | 10,000 | 25133224 |
| 668476Amendment | Aug 26, 2008 | Aug 26, 2008 | EOG Resources, Inc. | Hudgins Unit #1HH | 10,000 | 25133224 |
| 668473 | Aug 26, 2008 | Aug 26, 2008 | Chesapeake Operating, Inc. | Serena Beth #3HH | 9,000 | 25133221 |
| 668469 | Aug 26, 2008 | Aug 26, 2008 | EOG Resources, Inc. | Bransom Unit #4HH | 10,000 | 25133222 |
| 668467 | Aug 26, 2008 | Aug 26, 2008 | EOG Resources, Inc. | Bransom Unit #3HH | 10,000 | 25133220 |
| 668464 | Aug 26, 2008 | Aug 26, 2008 | Chesapeake Operating, Inc. | West Lake #9HH | 9,000 | 25133219 |
| 668462 | Aug 26, 2008 | Aug 26, 2008 | Chesapeake Operating, Inc. | Smith, Lowell Jr. #4HH | 9,000 | 25133218 |
| 668460 | Aug 26, 2008 | Aug 26, 2008 | Chesapeake Operating, Inc. | Smith, Lowell Jr. #2HH | 9,000 | 25133217 |
| 668456 | Aug 25, 2008 | Aug 25, 2008 | Western Chief Operating, L.L.C. | Green Unit #1 HH | 7,700 | 25133223 |
| 668302 | Aug 21, 2008 | Aug 21, 2008 | Sullivan, Hollis R. Inc. | Marti #2HH | 8,900 | 25133214 |
| 668302Amendment | Aug 21, 2008 | Aug 21, 2008 | XTO Energy Inc. | Marti #2HH | 8,900 | 25133214 |
| 668302Amendment | Aug 21, 2008 | Aug 21, 2008 | XTO Energy Inc. | Marti #2HH | 9,500 | 25133214 |
| 667888 | Aug 20, 2008 | Aug 20, 2008 | Sullivan, Hollis R. Inc. | Smith B #2HH | 8,900 | 25133199 |
| 667888Amendment | Aug 20, 2008 | Aug 20, 2008 | XTO Energy Inc. | Smith Unit #B 2HH | 10,500 | 25133199 |
| 667888Amendment | Aug 20, 2008 | Aug 20, 2008 | XTO Energy Inc. | Gery Smith Unit #B 2HH | 10,500 | 25133199 |
| 667888Amendment | Aug 20, 2008 | Aug 20, 2008 | XTO Energy Inc. | Gery Smith Unit #B 2HH | 10,500 | 25133199 |
| 663243 | Aug 20, 2008 | Aug 20, 2008 | Devon Energy Production Co, L.P. | A. D. Jackson "A" #1H | 9,000 | 25133024 |
| 659103Amendment | Aug 20, 2008 | Aug 20, 2008 | Chesapeake Operating, Inc. | Brown #2HH | 9,000 | 25132839 |
| 659103Amendment | Aug 20, 2008 | Aug 20, 2008 | Chesapeake Operating, Inc. | Brown #2HH | 9,000 | 25132839 |
| 668088 | Aug 19, 2008 | Aug 19, 2008 | Chesapeake Operating, Inc. | Una Hyral #1HH | 9,000 | 25133211 |
| 668074 | Aug 19, 2008 | Aug 19, 2008 | Chesapeake Operating, Inc. | Brown #7HH | 9,000 | 25133205 |
| 668070 | Aug 19, 2008 | Aug 19, 2008 | Chesapeake Operating, Inc. | Brown #6HH | 9,000 | 25133204 |
| 668068 | Aug 19, 2008 | Aug 19, 2008 | Chesapeake Operating, Inc. | Brown #5HH | 9,000 | 25133203 |
| 668066 | Aug 19, 2008 | Aug 19, 2008 | Chesapeake Operating, Inc. | Brown #4HH | 9,000 | 25133202 |
| 668058 | Aug 19, 2008 | Aug 19, 2008 | EOG Resources, Inc. | Falls Creek Unit #2HH | 10,000 | 25133207 |
| 668058Amendment | Aug 19, 2008 | Aug 19, 2008 | EOG Resources, Inc. | Falls Creek Unit #2HH | 8,999 | 25133207 |
| 666194 | Aug 19, 2008 | Aug 19, 2008 | Williams Prod. Gulf Coast, L.P. | Burleson Bible Church #3HH | 7,665 | 25133126 |
| 668085 | Aug 18, 2008 | Aug 18, 2008 | Devon Energy Production Co, L.P. | Vodine Kenny #3HH | 9,000 | 25133213 |
| 668084 | Aug 18, 2008 | Aug 18, 2008 | Devon Energy Production Co, L.P. | Vodine Kenny #2HH | 9,000 | 25133212 |
| 668083 | Aug 18, 2008 | Aug 18, 2008 | Devon Energy Production Co, L.P. | Vodine Kenny #5HH | 9,000 | 25133210 |
| 668081 | Aug 18, 2008 | Aug 18, 2008 | Devon Energy Production Co, L.P. | Vodine Kenny #4HH | 9,000 | 25133208 |
| 668063 | Aug 18, 2008 | Aug 18, 2008 | EOG Resources, Inc. | Falls Creek Unit #3HH | 10,000 | 25133209 |
| 668063Amendment | Aug 18, 2008 | Aug 18, 2008 | EOG Resources, Inc. | Falls Creek Unit #3HH | 8,999 | 25133209 |
| 668063Amendment | Aug 18, 2008 | Aug 18, 2008 | EOG Resources, Inc. | Falls Creek Unit #3HH | 8,999 | 25133209 |
| 668035 | Aug 18, 2008 | Aug 18, 2008 | EOG Resources, Inc. | Gossett Unit #2HH | 10,000 | 25133201 |
| 668033 | Aug 18, 2008 | Aug 18, 2008 | EOG Resources, Inc. | Falls Creek Unit #1HH | 10,000 | 25133206 |
| 668033Amendment | Aug 18, 2008 | Aug 18, 2008 | EOG Resources, Inc. | Falls Creek Unit #1HH | 8,999 | 25133206 |
| 668027 | Aug 18, 2008 | Aug 18, 2008 | EOG Resources, Inc. | Gossett Unit #3HH | 10,000 | 25133200 |
| 667851 | Aug 14, 2008 | Aug 14, 2008 | EOG Resources, Inc. | Core Lab #6HH | 10,000 | 25133197 |
| 667621 | Aug 13, 2008 | Aug 13, 2008 | Chesapeake Operating, Inc. | Mountain Valley #2HH | 9,000 | 25133191 |
| 651627Amendment | Aug 13, 2008 | Aug 13, 2008 | EOG Resources, Inc. | Walking T Ranch Unit #20HH | 10,000 | 25132477 |
| 651624Amendment | Aug 13, 2008 | Aug 13, 2008 | EOG Resources, Inc. | Walking T Ranch Unit #19HH | 10,000 | 25132475 |
| 651621Amendment | Aug 13, 2008 | Aug 13, 2008 | EOG Resources, Inc. | Walking T Ranch Unit #18HH | 10,000 | 25132474 |
| 651618Amendment | Aug 13, 2008 | Aug 13, 2008 | EOG Resources, Inc. | Walking T Ranch Unit #17HH | 10,000 | 25132476 |
| 651617Amendment | Aug 13, 2008 | Aug 13, 2008 | EOG Resources, Inc. | Walking T Ranch Unit #16HH | 10,000 | 25132473 |
| 651135Amendment | Aug 13, 2008 | Aug 13, 2008 | EOG Resources, Inc. | Walking T Ranch Unit #15HH | 10,000 | 25132442 |
| 651131Amendment | Aug 13, 2008 | Aug 13, 2008 | EOG Resources, Inc. | Walking T Ranch Unit #14HH | 10,000 | 25132446 |
| 651129Amendment | Aug 13, 2008 | Aug 13, 2008 | EOG Resources, Inc. | Walking T Ranch Unit #13HH | 10,000 | 25132445 |
| 651128Amendment | Aug 13, 2008 | Aug 13, 2008 | EOG Resources, Inc. | Walking T Ranch Unit #12HH | 10,000 | 25132444 |
| 651126Amendment | Aug 13, 2008 | Aug 13, 2008 | EOG Resources, Inc. | Walking T Ranch Unit #11HH | 10,000 | 25132440 |
| 650631Amendment | Aug 13, 2008 | Aug 13, 2008 | EOG Resources, Inc. | Walking T Ranch Unit #10HH | 10,000 | 25133192 |
| 650630Amendment | Aug 13, 2008 | Aug 13, 2008 | EOG Resources, Inc. | Walking T Ranch Unit #9HH | 10,000 | 25133193 |
| 650629Amendment | Aug 13, 2008 | Aug 13, 2008 | EOG Resources, Inc. | Walking T Ranch Unit #8HH | 10,000 | 25133196 |
| 650628Amendment | Aug 13, 2008 | Aug 13, 2008 | EOG Resources, Inc. | Walking T Ranch Unit #7HH | 10,000 | 25133194 |
| 650627Amendment | Aug 13, 2008 | Aug 13, 2008 | EOG Resources, Inc. | Walking T Ranch Unit #6HH | 10,000 | 25133195 |
| 667644 | Aug 12, 2008 | Aug 12, 2008 | XTO Energy Inc. | Village Creek Unit #1HH | 11,000 | 25133190 |
| 667406 | Aug 12, 2008 | Aug 12, 2008 | Devon Energy Production Co, L.P. | J. J. Fehse GU #2HH | 9,000 | 25133186 |
| 667464 | Aug 11, 2008 | Aug 11, 2008 | Devon Energy Production Co, L.P. | West Johnson SWD #1 | 9,000 | 25133189 |
| 667405 | Aug 11, 2008 | Aug 11, 2008 | Devon Energy Production Co, L.P. | J. J. Fehse GU #1HH | 9,000 | 25133187 |
| 667428 | Aug 9, 2008 | Aug 9, 2008 | Chesapeake Operating, Inc. | Webb #2HH | 9,000 | 25133188 |
| 667428Amendment | Aug 9, 2008 | Aug 9, 2008 | Chesapeake Operating, Inc. | Webb #2HH | 9,000 | 25133188 |
| 667377 | Aug 9, 2008 | Aug 9, 2008 | Chesapeake Operating, Inc. | Burleson Elks #5HH | 9,000 | 25133185 |
| 667377Amendment | Aug 9, 2008 | Aug 9, 2008 | Chesapeake Operating, Inc. | Burleson Elks #5HH | 9,000 | 25133185 |
| 667377Amendment | Aug 9, 2008 | Aug 9, 2008 | Chesapeake Operating, Inc. | Burleson Elks #5HH | 9,000 | 25133185 |
| 667377Amendment | Aug 9, 2008 | Aug 9, 2008 | Chesapeake Operating, Inc. | Burleson Elks #5HH | 9,000 | 25133185 |
| 667376 | Aug 9, 2008 | Aug 9, 2008 | Chesapeake Operating, Inc. | Burleson Elks #3HH | 9,000 | 25133183 |
| 667376Amendment | Aug 9, 2008 | Aug 9, 2008 | Chesapeake Operating, Inc. | Burleson Elks #3HH | 9,000 | 25133183 |
| 667374 | Aug 9, 2008 | Aug 9, 2008 | Chesapeake Operating, Inc. | Burleson Elks #1HH | 9,000 | 25133184 |
| 667362 | Aug 9, 2008 | Aug 9, 2008 | Chesapeake Operating, Inc. | 1ST Baptist Church #3HH | 9,000 | 25133182 |
| 667360 | Aug 9, 2008 | Aug 9, 2008 | Chesapeake Operating, Inc. | 1ST Baptist Church #2HH | 9,000 | 25133181 |
| 667306 | Aug 9, 2008 | Aug 9, 2008 | EOG Resources, Inc. | V.L. Carrell Unit #2HH | 10,000 | 25133180 |
| 667275 | Aug 9, 2008 | Aug 9, 2008 | EOG Resources, Inc. | Maples Unit #14HH | 10,000 | 25133177 |
| 667273 | Aug 9, 2008 | Aug 9, 2008 | EOG Resources, Inc. | Maples Unit #13HH | 10,000 | 25133178 |
| 667273Amendment | Aug 9, 2008 | Aug 9, 2008 | EOG Resources, Inc. | Maples Unit #13HH | 10,000 | 25133178 |
| 667267 | Aug 9, 2008 | Aug 9, 2008 | EOG Resources, Inc. | Maples Unit #12HH | 10,000 | 25133179 |
| 667267Amendment | Aug 9, 2008 | Aug 9, 2008 | EOG Resources, Inc. | Maples Unit #12HH | 10,000 | 25133179 |
| 667260 | Aug 9, 2008 | Aug 9, 2008 | Devon Energy Production Co, L.P. | Hooper #11HH | 9,000 | 25133176 |
| 667220 | Aug 8, 2008 | Aug 8, 2008 | Chesapeake Operating, Inc. | McAnier #13HH | 9,000 | 25133172 |
| 667219 | Aug 8, 2008 | Aug 8, 2008 | Chesapeake Operating, Inc. | McAnier #11HH | 9,000 | 25133171 |
| 667218 | Aug 8, 2008 | Aug 8, 2008 | Chesapeake Operating, Inc. | McAnier #10HH | 9,000 | 25133175 |
| 667198 | Aug 8, 2008 | Aug 8, 2008 | Chesapeake Operating, Inc. | Mann, S. #5HH | 9,000 | 25133169 |
| 667194 | Aug 8, 2008 | Aug 8, 2008 | Chesapeake Operating, Inc. | Mann, S. #13HH | 9,000 | 25133174 |
| 667096 | Aug 8, 2008 | Aug 8, 2008 | Chesapeake Operating, Inc. | Cart Barn #5HH | 9,000 | 25133168 |
| 666895 | Aug 8, 2008 | Aug 8, 2008 | Chesapeake Operating, Inc. | I G Kennon #4HH | 9,000 | 25133159 |
| 664917 | Aug 8, 2008 | Aug 8, 2008 | Chesapeake Operating, Inc. | Barabas #1HH | 9,000 | 25133077 |
| 667222 | Aug 7, 2008 | Aug 7, 2008 | Chesapeake Operating, Inc. | Buffalo Ridge #9HH | 9,000 | 25133173 |
| 667216 | Aug 7, 2008 | Aug 7, 2008 | Chesapeake Operating, Inc. | McAnier #8HH | 9,000 | 25133170 |
| 667098 | Aug 7, 2008 | Aug 7, 2008 | Chesapeake Operating, Inc. | Cart Barn #6HH | 9,000 | 25133166 |
| 667094 | Aug 7, 2008 | Aug 7, 2008 | Chesapeake Operating, Inc. | Cart Barn #4HH | 9,000 | 25133165 |
| 667093 | Aug 7, 2008 | Aug 7, 2008 | Chesapeake Operating, Inc. | Cart Barn #3HH | 9,000 | 25133167 |
| 667078 | Aug 7, 2008 | Aug 7, 2008 | Chesapeake Operating, Inc. | Kenah #6HH | 9,000 | 25133162 |
| 661636Amendment | Aug 7, 2008 | Aug 7, 2008 | Chesapeake Operating, Inc. | East Godley #12HH | 9,000 | 25132956 |