| 671917 | Oct 17, 2008 | Oct 17, 2008 | OXY USA Inc. | Mitchell "31" #5 | 12,500 | 44331311 |
| 672939 | Oct 16, 2008 | Oct 16, 2008 | Fasken Oil and Ranch, Ltd. | Mobley/Brown State #7H | 13,000 | 44331309 |
| 672363 | Oct 11, 2008 | Oct 11, 2008 | Encore Operating, L.P. | Brown Bassett #12 | 6,400 | 44331308 |
| 671771 | Oct 4, 2008 | Oct 4, 2008 | OXY USA Inc. | Mitchell "8" #11 | 12,500 | 44331305 |
| 671765 | Oct 4, 2008 | Oct 4, 2008 | OXY USA Inc. | Mitchell "2" #19 | 12,500 | 44331304 |
| 669287 | Oct 2, 2008 | Oct 2, 2008 | Encore Operating, L.P. | Brotherton #4 | 6,300 | 44331301 |
| 670938 | Sep 29, 2008 | Sep 29, 2008 | Encore Operating, L.P. | Banner Estate #84 | 6,000 | 44331303 |
| 669880 | Sep 15, 2008 | Sep 15, 2008 | Encore Operating, L.P. | Goode Estate Unit #17HH | 12,400 | 44331302 |
| 667568 | Aug 11, 2008 | Aug 11, 2008 | Piedra Operating, LLC | Mitchell 15 #1 | 12,500 | 44331300 |
| 664937 | Aug 8, 2008 | Aug 8, 2008 | Encore Operating, L.P. | Banner Estate #96HH | 12,500 | 44331291 |
| 666636 | Aug 2, 2008 | Aug 2, 2008 | Conocophillips Company | University 4 #9 | 13,000 | 44331299 |
| 666636Amendment | Aug 2, 2008 | Aug 2, 2008 | Conocophillips Company | University 4 #9 | 13,000 | 44331299 |
| 666636Amendment | Aug 2, 2008 | Aug 2, 2008 | Conocophillips Company | University 4 #9 | 13,000 | 44331299 |
| 666518 | Jul 31, 2008 | Jul 31, 2008 | Sandridge Energy, Inc. | Sapp-Weaver #3304 | 14,000 | 44331298 |
| 666427 | Jul 30, 2008 | Jul 30, 2008 | Sandridge Energy, Inc. | Brown #3204 | 14,000 | 44331297 |
| 665821 | Jul 22, 2008 | Jul 22, 2008 | Fasken Oil and Ranch, Ltd. | Brown SE "227" #89 | 7,800 | 44331293 |
| 665817 | Jul 22, 2008 | Jul 22, 2008 | Fasken Oil and Ranch, Ltd. | Brown SE "226" #87 | 7,800 | 44331296 |
| 665816 | Jul 22, 2008 | Jul 22, 2008 | Fasken Oil and Ranch, Ltd. | Brown SE "225" #86 | 7,800 | 44331295 |
| 665815 | Jul 22, 2008 | Jul 22, 2008 | Fasken Oil and Ranch, Ltd. | Brown NE "225" #88 | 7,800 | 44331294 |
| 665812 | Jul 22, 2008 | Jul 22, 2008 | Fasken Oil and Ranch, Ltd. | Brown SE "222" #85 | 7,800 | 44331292 |
| 662927 | Jul 11, 2008 | Jul 11, 2008 | Encore Operating, L.P. | Banner Estate #99R | 15,000 | 44331283 |
| 664001 | Jun 26, 2008 | Jun 26, 2008 | Fasken Oil and Ranch, Ltd. | Brown NE "212" #78 | 7,800 | 44331285 |
| 664006 | Jun 25, 2008 | Jun 25, 2008 | Fasken Oil and Ranch, Ltd. | Brown SW "220" #83 | 7,800 | 44331290 |
| 664005 | Jun 25, 2008 | Jun 25, 2008 | Fasken Oil and Ranch, Ltd. | Brown NW "213" #82 | 7,800 | 44331289 |
| 664004 | Jun 25, 2008 | Jun 25, 2008 | Fasken Oil and Ranch, Ltd. | Brown NW "213" #81 | 7,800 | 44331288 |
| 664003 | Jun 25, 2008 | Jun 25, 2008 | Fasken Oil and Ranch, Ltd. | Brown SW "213" #80 | 7,800 | 44331286 |
| 664002 | Jun 25, 2008 | Jun 25, 2008 | Fasken Oil and Ranch, Ltd. | Brown NE "212" #79 | 7,800 | 44331287 |
| 663996 | Jun 25, 2008 | Jun 25, 2008 | Fasken Oil and Ranch, Ltd. | Brown SW "220" #84 | 7,800 | 44331284 |
| 662730 | Jun 11, 2008 | Jun 11, 2008 | Encore Operating, L.P. | Banner Estate #92HH | 12,250 | 44331282 |
| 662730Amendment | Jun 11, 2008 | Jun 11, 2008 | Encore Operating, L.P. | Banner Estate #92HH | 12,250 | 44331282 |
| 662549 | Jun 9, 2008 | Jun 9, 2008 | Piedra Operating, LLC | Mitchell State 10 #1 | 12,500 | 44331281 |
| 662214 | Jun 6, 2008 | Jun 6, 2008 | Occidental Permian Ltd. | Mitchell 328 #1 | 6,500 | 44331280 |
| 661632 | May 28, 2008 | May 28, 2008 | Newfield Exploration Company | Poulter 37 #2 | 12,000 | 44331279 |
| 660967 | May 20, 2008 | May 20, 2008 | Conocophillips Company | Culbertson 17 #5 | 12,500 | 44331278 |
| 660689 | May 16, 2008 | May 16, 2008 | Conocophillips Company | Creek Ranch 10 #3 | 13,000 | 44331276 |
| 660732 | May 15, 2008 | May 15, 2008 | Conocophillips Company | Acu 46 #3 | 12,500 | 44331277 |
| 660442 | May 12, 2008 | May 12, 2008 | Sandridge Energy, Inc. | Big Canyon B #9001 | 20,000 | 44331275 |
| 660023 | May 1, 2008 | May 1, 2008 | Newfield Exploration Company | Poulter 27 #5 | 12,000 | 44331274 |
| 658106 | Apr 11, 2008 | Apr 11, 2008 | Encana Oil & Gas(usa) Inc. | Acu 48 #4 | 11,300 | 44331061 |
| 656497 | Apr 9, 2008 | Apr 9, 2008 | Encore Operating, L.P. | Banner Estate #99 | 15,000 | 44331273 |
| 657409 | Mar 26, 2008 | Mar 26, 2008 | Conocophillips Company | Culbertson 16 #1 | 11,592 | 44330484 |
| 656499 | Mar 14, 2008 | Mar 14, 2008 | Fasken Oil and Ranch, Ltd. | Brown SE "185" #77H | 7,800 | 44331271 |
| 656553 | Mar 12, 2008 | Mar 12, 2008 | Fasken Oil and Ranch, Ltd. | Brown NE "201" #75H | 7,800 | 44331272 |
| 656553Amendment | Mar 12, 2008 | Mar 12, 2008 | Fasken Oil and Ranch, Ltd. | Brown NE "201" #75H | 7,800 | 44331272 |
| 656427 | Mar 10, 2008 | Mar 10, 2008 | Fasken Oil and Ranch, Ltd. | Brown NE "184" #76H | 7,800 | 44331270 |
| 654627 | Mar 5, 2008 | Mar 5, 2008 | Conocophillips Company | Acu 49 #7 | 12,500 | 44331269 |
| 654627Amendment | Mar 5, 2008 | Mar 5, 2008 | Conocophillips Company | Acu 49 #7 | 12,500 | 44331269 |
| 653701 | Jan 30, 2008 | Jan 30, 2008 | Conocophillips Company | Culbertson 17 #4 | 12,000 | 44331268 |
| 653429 | Jan 28, 2008 | Jan 28, 2008 | Newfield Exploration Company | Poulter 27 #4 | 12,000 | 44331267 |
| 651356 | Jan 22, 2008 | Jan 22, 2008 | Encore Operating, L.P. | Bassett Goode #17 | 6,600 | 44331263 |
| 651351 | Jan 22, 2008 | Jan 22, 2008 | Encore Operating, L.P. | Bassett Goode #12 | 6,600 | 44331262 |
| 651178 | Jan 4, 2008 | Jan 4, 2008 | Encore Operating, L.P. | Banner Estate #65 | 5,900 | 44331266 |
| 651879 | Dec 31, 2007 | Dec 31, 2007 | Fasken Oil and Ranch, Ltd. | Brown NE "222" #74 | 7,500 | 44331265 |
| 651876 | Dec 31, 2007 | Dec 31, 2007 | Fasken Oil and Ranch, Ltd. | Brown NW "212" #73 | 7,500 | 44331264 |
| 651149 | Dec 20, 2007 | Dec 20, 2007 | Encore Operating, L.P. | Goode Estate Unit #11 | 6,400 | 44331261 |
| 643121Amendment | Dec 18, 2007 | Dec 18, 2007 | Conocophillips Company | Mitchell, Alex 1 #11 | 12,700 | 44331250 |
| 651148 | Dec 17, 2007 | Dec 17, 2007 | Encore Operating, L.P. | Brown Bassett Goode Unit #7 | 6,350 | 44331260 |
| 651148Amendment | Dec 17, 2007 | Dec 17, 2007 | Encore Operating, L.P. | Brown Bassett Goode Unit #7 | 6,350 | 44331260 |
| 649774 | Nov 29, 2007 | Nov 29, 2007 | Rex Energy Operating Corp. | Ingham 6 #2 | 5,200 | 44331259 |
| 650143 | Nov 26, 2007 | Nov 26, 2007 | Fasken Oil and Ranch, Ltd. | Brown SW "212" #29H | 7,750 | 44331051 |
| 648702 | Nov 6, 2007 | Nov 6, 2007 | Encore Operating, L.P. | Banner Estate #81 | 6,000 | 44331258 |
| 647447 | Oct 12, 2007 | Oct 12, 2007 | Newfield Exploration Company | Poulter 27 #3 | 15,000 | 44331257 |
| 646337 | Sep 28, 2007 | Sep 28, 2007 | Conocophillips Company | Mitchell, Alex 1 #1 | 11,616 | 44330509 |
| 646322 | Sep 25, 2007 | Sep 25, 2007 | Conocophillips Company | University 4 #3 | 12,177 | 44330669 |
| 646058 | Sep 18, 2007 | Sep 18, 2007 | Encore Operating, L.P. | Banner Estate #72 | 6,700 | 44331256 |
| 645499 | Sep 11, 2007 | Sep 11, 2007 | Newfield Exploration Company | Poulter 36 #3601 | 15,000 | 44331255 |
| 643877 | Sep 5, 2007 | Sep 5, 2007 | Encore Operating, L.P. | Banner Estate #93 | 6,600 | 44331252 |
| 645274 | Aug 30, 2007 | Aug 30, 2007 | EOG Resources, Inc. | Garner 12 #1 | 8,995 | 44331039 |
| 642827 | Aug 24, 2007 | Aug 24, 2007 | Encore Operating, L.P. | Banner Estate #61 | 6,700 | 44331245 |
| 642488 | Aug 22, 2007 | Aug 22, 2007 | Encore Operating, L.P. | Goode Estate Unit #16 | 6,500 | 44331243 |
| 644240 | Aug 15, 2007 | Aug 15, 2007 | Newfield Exploration Company | Poulter #3405 | 15,000 | 44331253 |
| 644234 | Aug 15, 2007 | Aug 15, 2007 | Encana Oil & Gas(usa) Inc. | Acu "48" #7 | 11,200 | 44331154 |
| 643200 | Aug 4, 2007 | Aug 4, 2007 | Encore Operating, L.P. | Banner Estate #77 | 6,000 | 44331251 |
| 643121 | Aug 3, 2007 | Aug 3, 2007 | Conocophillips Company | Mitchell, Alex 1 #11 | 12,700 | 44331250 |
| 641454 | Aug 3, 2007 | Aug 3, 2007 | Encore Operating, L.P. | Brown Bassett #13 | 6,700 | 44331240 |
| 642877 | Jul 31, 2007 | Jul 31, 2007 | Encore Operating, L.P. | Mayme K. Martin Unit #8 | 6,300 | 44331248 |
| 642836 | Jul 31, 2007 | Jul 31, 2007 | Conocophillips Company | Culbertson 16 #6 | 12,500 | 44331247 |
| 642836Amendment | Jul 31, 2007 | Jul 31, 2007 | Conocophillips Company | Culbertson 16 #6 | 12,500 | 44331247 |
| 642836Amendment | Jul 31, 2007 | Jul 31, 2007 | Conocophillips Company | Culbertson 16 #6 | 12,500 | 44331247 |
| 642836Amendment | Jul 31, 2007 | Jul 31, 2007 | Conocophillips Company | Culbertson 16 #6 | 12,500 | 44331247 |
| 642836Amendment | Jul 31, 2007 | Jul 31, 2007 | Conocophillips Company | Culbertson 16 #6 | 12,500 | 44331247 |
| 642830 | Jul 31, 2007 | Jul 31, 2007 | Conocophillips Company | University 4 #8 | 12,500 | 44331246 |
| 642804 | Jul 31, 2007 | Jul 31, 2007 | Conocophillips Company | Alex Mitchell 1 #10 | 12,500 | 44331244 |
| 641192 | Jul 27, 2007 | Jul 27, 2007 | Encore Operating, L.P. | Brown Bassett #14 | 6,700 | 44331249 |
| 641192Amendment | Jul 27, 2007 | Jul 27, 2007 | Encore Operating, L.P. | Brown Bassett #14 | 6,700 | 44331249 |
| 642126 | Jul 17, 2007 | Jul 17, 2007 | Encore Operating, L.P. | Brown Bassett #16 | 6,700 | 44331242 |
| 642126Amendment | Jul 17, 2007 | Jul 17, 2007 | Encore Operating, L.P. | Brown Bassett #16 | 6,700 | 44331242 |
| 641974 | Jul 16, 2007 | Jul 16, 2007 | Encore Operating, L.P. | Goode Estate Unit #15 | 6,700 | 44331241 |
| 638505 | Jun 1, 2007 | Jun 1, 2007 | EOG Resources, Inc. | Noelke 5 #2 | 9,000 | 44330999 |
| 638012 | Jun 1, 2007 | Jun 1, 2007 | Encore Operating, L.P. | Goode Estate #6 | 15,000 | 44331237 |
| 638012Amendment | Jun 1, 2007 | Jun 1, 2007 | Encore Operating, L.P. | Goode Estate #6 | 15,000 | 44331237 |
| 639325 | May 24, 2007 | May 24, 2007 | Encore Operating, L.P. | Banner Estate #35HH | 12,100 | 44331238 |
| 634444 | Apr 5, 2007 | Apr 5, 2007 | Encore Operating, L.P. | Brown McNinch #20 | 7,000 | 44331229 |
| 630680 | Mar 28, 2007 | Mar 28, 2007 | Encana Oil & Gas(usa) Inc. | Acu 46 #1 | 11,923 | 44330861 |
| 634477 | Mar 27, 2007 | Mar 27, 2007 | Fasken Oil and Ranch, Ltd. | Brown NW "184" #72 | 7,500 | 44331235 |
| 634476 | Mar 27, 2007 | Mar 27, 2007 | Fasken Oil and Ranch, Ltd. | Brown SE "200" #71 | 7,500 | 44331234 |
| 634475 | Mar 27, 2007 | Mar 27, 2007 | Fasken Oil and Ranch, Ltd. | Brown NE "226" #70 | 7,500 | 44331236 |
| 634474 | Mar 27, 2007 | Mar 27, 2007 | Fasken Oil and Ranch, Ltd. | Brown SW "227" #69 | 7,500 | 44331233 |
| 634473 | Mar 27, 2007 | Mar 27, 2007 | Fasken Oil and Ranch, Ltd. | Brown NW "221" #68 | 7,500 | 44331232 |
| 635339 | Mar 23, 2007 | Mar 23, 2007 | WTG Exploration | Aunt Josie "C" #2 | 9,900 | 44331231 |