| 543147 | Mar 12, 2004 | Mar 12, 2004 | Caprock Operating, Inc. | Reed SA #100339230 | 4,900 |
| 542878 | Mar 5, 2004 | Mar 5, 2004 | Westport Oil and Gas Company, LP | Andrews Unit #120100339228 | 9,600 |
| 542757 | Mar 4, 2004 | Mar 4, 2004 | Giebel Petroleum Ltd. | Cox "A" #200339227 | 8,000 |
| 542509 | Mar 3, 2004 | Mar 3, 2004 | Fasken Oil and Ranch, Ltd. | Fasken #10200339216 | 5,100 |
| 542509Amendment | Mar 3, 2004 | Mar 3, 2004 | Fasken Oil and Ranch, Ltd. | Fasken #10200339216 | 5,100 |
| 542655 | Mar 2, 2004 | Mar 2, 2004 | XTO Energy Inc. | University Block 9/Penn/Unit #7700336923 | 9,350 |
| 542566 | Mar 1, 2004 | Mar 1, 2004 | BP America Production Company | University 11 Sec. 11 F #300335106 | 7,100 |
| 542521 | Feb 27, 2004 | Feb 27, 2004 | Fasken Oil and Ranch, Ltd. | David Fasken "28" #1000339226 | 5,100 |
| 542520 | Feb 27, 2004 | Feb 27, 2004 | Fasken Oil and Ranch, Ltd. | David Fasken "28" #11000339225 | 5,100 |
| 542519 | Feb 27, 2004 | Feb 27, 2004 | Fasken Oil and Ranch, Ltd. | David Fasken "28" #10800339224 | 5,100 |
| 542518 | Feb 27, 2004 | Feb 27, 2004 | Fasken Oil and Ranch, Ltd. | David Fasken "28" #10700339223 | 5,100 |
| 542517 | Feb 27, 2004 | Feb 27, 2004 | Fasken Oil and Ranch, Ltd. | Fee "Y" #11100339222 | 5,100 |
| 542516 | Feb 27, 2004 | Feb 27, 2004 | Fasken Oil and Ranch, Ltd. | Fee "Y" #10600339221 | 5,100 |
| 542515 | Feb 27, 2004 | Feb 27, 2004 | Fasken Oil and Ranch, Ltd. | Fee "Y" #10500339220 | 5,100 |
| 542514 | Feb 27, 2004 | Feb 27, 2004 | Fasken Oil and Ranch, Ltd. | Fee "Y" #10400339219 | 5,100 |
| 542513 | Feb 27, 2004 | Feb 27, 2004 | Fasken Oil and Ranch, Ltd. | Fee "Y" #10100339218 | 5,100 |
| 542512 | Feb 27, 2004 | Feb 27, 2004 | Fasken Oil and Ranch, Ltd. | Fasken #10300339217 | 5,100 |
| 541591 | Feb 25, 2004 | Feb 25, 2004 | Range Production Company | West Fuhrman-Mascho Unit #25400339214 | 4,900 |
| 542177 | Feb 18, 2004 | Feb 18, 2004 | Apache Corporation | Three Bar Unit #83HH00339215 | 9,500 |
| 541592 | Feb 18, 2004 | Feb 18, 2004 | Range Production Company | West Fuhrman-Mascho Unit #18600339213 | 4,900 |
| 541994 | Feb 13, 2004 | Feb 13, 2004 | Encore Operating, L.P. | Fort, W.T. -B- #1200336163 | 9,360 |
| 541994Amendment | Feb 13, 2004 | Feb 13, 2004 | Encore Operating, L.P. | Fort, W.T. -B- #1200336163 | 9,360 |
| 541795 | Feb 12, 2004 | Feb 12, 2004 | Caprock Operating, Inc. | North Means Queen Sand Unit #240100300462 | 4,222 |
| 541412 | Feb 11, 2004 | Feb 11, 2004 | Thompson, J. Cleo | Lockhart & Brown #800339209 | 5,000 |
| 541411 | Feb 11, 2004 | Feb 11, 2004 | Thompson, J. Cleo | Lockhart & Brown #900339208 | 5,000 |
| 557226 | Feb 9, 2004 | Feb 9, 2004 | Range Production Company | West Fuhrman-Mascho Unit #24700339462 | 4,900 |
| 541859 | Feb 9, 2004 | Feb 9, 2004 | Westport Oil and Gas Company, LP | Andrews Unit #30700339212 | 9,750 |
| 541827 | Feb 9, 2004 | Feb 9, 2004 | OXY USA WTP LP | North Dollarhide #35800339211 | 8,300 |
| 541827Amendment | Feb 9, 2004 | Feb 9, 2004 | OXY USA WTP LP | North Dollarhide Unit #35800339211 | 8,300 |
| 541827Amendment | Feb 9, 2004 | Feb 9, 2004 | OXY USA WTP LP | North Dollarhide Unit #35800339211 | 8,700 |
| 541806 | Feb 9, 2004 | Feb 9, 2004 | Occidental Permian Ltd. | Midland Farms -AG- #1000335326 | 11,700 |
| 541762 | Feb 6, 2004 | Feb 6, 2004 | Conocophillips Company | University Andrews #4500304769 | 8,015 |
| 541725 | Feb 6, 2004 | Feb 6, 2004 | Pogo Producing Co. | Clampett, Jed D #400339210 | 4,900 |
| 541547 | Feb 4, 2004 | Feb 4, 2004 | Occidental Permian Ltd. | Midland Farms Deep Unit #300305781 | 12,995 |
| 541346 | Feb 3, 2004 | Feb 3, 2004 | XTO Energy Inc. | University Block 9/Wolfcamp Unit #219800305401 | 9,020 |
| 541422 | Feb 2, 2004 | Feb 2, 2004 | Range Production Company | West Fuhrman-Mascho Unit #181R00339207 | 4,900 |
| 541423 | Jan 30, 2004 | Jan 30, 2004 | OXY USA WTP LP | North Dollarhide Unit #50600339206 | 8,300 |
| 541423Amendment | Jan 30, 2004 | Jan 30, 2004 | OXY USA WTP LP | North Dollarhide Unit #50600339206 | 7,100 |
| 541423Amendment | Jan 30, 2004 | Jan 30, 2004 | OXY USA WTP LP | North Dollarhide Unit #50600339206 | 8,900 |
| 541359 | Jan 29, 2004 | Jan 29, 2004 | Zinke & Trumbo, Inc. | University 35 #100339205 | 14,500 |
| 541359Amendment | Jan 29, 2004 | Jan 29, 2004 | Zinke & Trumbo, Inc. | University 35 #100339205 | 14,500 |
| 541359Amendment | Jan 29, 2004 | Jan 29, 2004 | Zinke & Trumbo, Inc. | University 35 #10500339205 | 12,691 |
| 541219 | Jan 29, 2004 | Jan 29, 2004 | XTO Energy Inc. | University Block 9/Wolfcamp/Unit #1H00300443 | 9,065 |
| 541218 | Jan 29, 2004 | Jan 29, 2004 | XTO Energy Inc. | University Block 9/Wolfcamp/Unit #2SA00305160 | 8,539 |
| 541040 | Jan 21, 2004 | Jan 21, 2004 | Merit Energy Company | Mabee Mercury #200339204 | 6,000 |
| 540907 | Jan 20, 2004 | Jan 20, 2004 | Pure Resources, L.P. | Parker Unit #2618E00337820 | 9,870 |
| 540350 | Jan 8, 2004 | Jan 8, 2004 | Range Production Company | West Fuhrman-Mascho Unit #23600339202 | 4,900 |
| 540170 | Jan 7, 2004 | Jan 7, 2004 | Amerind Oil Company, Ltd. | Cowden "F" #200332949 | 8,161 |
| 540270 | Jan 4, 2004 | Jan 4, 2004 | Pogo Producing Co. | Clampett, Jed "F" #200338960 | 4,900 |
| 539812 | Jan 2, 2004 | Jan 2, 2004 | Range Production Company | West Fuhrman-Mascho Unit #17900339183 | 4,900 |
| 540243 | Dec 31, 2003 | Dec 31, 2003 | Pogo Producing Co. | Clampett, Jed #1800339201 | 4,900 |
| 538999 | Dec 30, 2003 | Dec 30, 2003 | Encore Operating, L.P. | Gray, Columbus et Al #2126HH00333085 | 4,625 |
| 538995 | Dec 30, 2003 | Dec 30, 2003 | Encore Operating, L.P. | Gray, Columbus et Al #2216HH00310770 | 4,500 |
| 538969 | Dec 30, 2003 | Dec 30, 2003 | Encore Operating, L.P. | Gray, Columbus et Al #1929HH00339099 | 4,400 |
| 540112 | Dec 23, 2003 | Dec 23, 2003 | Encore Operating, L.P. | Gray, Columbus et Al #213800339200 | 9,400 |
| 540084 | Dec 23, 2003 | Dec 23, 2003 | Encore Operating, L.P. | Ford, W.T. #8400339199 | 9,400 |
| 540082 | Dec 23, 2003 | Dec 23, 2003 | Encore Operating, L.P. | Ford, W.T. #8200339198 | 9,400 |
| 540078 | Dec 23, 2003 | Dec 23, 2003 | Encore Operating, L.P. | Ford, W.T. #8300339197 | 9,400 |
| 540068 | Dec 22, 2003 | Dec 22, 2003 | Encore Operating, L.P. | Ford, W.T. "A" #1500339196 | 9,400 |
| 539832 | Dec 22, 2003 | Dec 22, 2003 | Range Production Company | West Fuhrman-Mascho Unit #22900339187 | 4,900 |
| 539830 | Dec 22, 2003 | Dec 22, 2003 | Range Production Company | West Fuhrman-Mascho Unit #24000339189 | 4,900 |
| 539818 | Dec 22, 2003 | Dec 22, 2003 | Range Production Company | West Fuhrman-Mascho Unit #14100339195 | 4,900 |
| 539817 | Dec 22, 2003 | Dec 22, 2003 | Range Production Company | West Fuhrman-Mascho Unit #14200339190 | 4,900 |
| 539817Amendment | Dec 22, 2003 | Dec 22, 2003 | Range Production Company | West Fuhrman-Mascho Unit #14200339190 | 4,900 |
| 539798 | Dec 22, 2003 | Dec 22, 2003 | Range Production Company | West Fuhrman-Mascho Unit #17300339191 | 4,900 |
| 539877 | Dec 19, 2003 | Dec 19, 2003 | Encore Operating, L.P. | Ford, W.T. "B" #110100330370 | 9,876 |
| 539797 | Dec 19, 2003 | Dec 19, 2003 | Range Production Company | West Fuhrman-Mascho Unit #17400339192 | 4,900 |
| 539796 | Dec 19, 2003 | Dec 19, 2003 | Range Production Company | West Fuhrman-Mascho Unit #17500339193 | 4,900 |
| 539795 | Dec 19, 2003 | Dec 19, 2003 | Range Production Company | West Fuhrman-Mascho Unit #17600339194 | 4,900 |
| 539833 | Dec 18, 2003 | Dec 18, 2003 | Range Production Company | West Fuhrman-Mascho Unit #18200339188 | 4,900 |
| 539831 | Dec 18, 2003 | Dec 18, 2003 | Range Production Company | West Fuhrman-Mascho Unit #23400339186 | 4,900 |
| 539816 | Dec 18, 2003 | Dec 18, 2003 | Range Production Company | West Fuhrman-Mascho Unit #18100339184 | 4,900 |
| 539815 | Dec 18, 2003 | Dec 18, 2003 | Range Production Company | West Fuhrman-Mascho Unit #15200339181 | 4,900 |
| 539814 | Dec 18, 2003 | Dec 18, 2003 | Range Production Company | West Fuhrman-Mascho Unit #15300339182 | 4,900 |
| 539814Amendment | Dec 18, 2003 | Dec 18, 2003 | Range Production Company | West Fuhrman-Mascho Unit #15300339182 | 4,900 |
| 539813 | Dec 18, 2003 | Dec 18, 2003 | Range Production Company | West Fuhrman-Mascho Unit #24500339185 | 4,900 |
| 539299 | Dec 17, 2003 | Dec 17, 2003 | Texland Petroleum, L.P. | Logsdon D #2700337775 | 7,204 |
| 539457 | Dec 9, 2003 | Dec 9, 2003 | OXY USA WTP LP | North Dollarhide Unit #13000339180 | 8,300 |
| 539456 | Dec 9, 2003 | Dec 9, 2003 | OXY USA WTP LP | North Dollarhide Unit #35600339179 | 8,300 |
| 539455 | Dec 9, 2003 | Dec 9, 2003 | OXY USA WTP LP | North Dollarhide Unit #35700339178 | 8,300 |
| 539398 | Dec 9, 2003 | Dec 9, 2003 | Pogo Producing Co. | Clampett, Jed D #300338900 | 4,900 |
| 539348 | Dec 5, 2003 | Dec 5, 2003 | Energen Resources Corporation | University "14-A" #300339177 | 9,000 |
| 539053 | Nov 25, 2003 | Nov 25, 2003 | Zinke & Trumbo, Inc. | University 22 #100339176 | 14,300 |
| 539016 | Nov 25, 2003 | Nov 25, 2003 | Energen Resources Corporation | University "14-A" #400339175 | 9,000 |
| 539007 | Nov 25, 2003 | Nov 25, 2003 | Encore Operating, L.P. | Gray, Columbus et Al #2125HH00333098 | 4,600 |
| 538938 | Nov 24, 2003 | Nov 24, 2003 | Encore Operating, L.P. | Gray, Columbus et Al #193000339174 | 10,400 |
| 538938Amendment | Nov 24, 2003 | Nov 24, 2003 | Encore Operating, L.P. | Gray, Columbus et Al #193000339174 | 10,400 |
| 538669 | Nov 20, 2003 | Nov 20, 2003 | Minihan Oil & Gas Corporation | University 15 - 11 #300339164 | 7,800 |
| 538667 | Nov 20, 2003 | Nov 20, 2003 | Minihan Oil & Gas Corporation | Phillips University 11 - A #900339166 | 7,800 |
| 538666 | Nov 20, 2003 | Nov 20, 2003 | Minihan Oil & Gas Corporation | Phillips University 11 #300339167 | 7,800 |
| 538665 | Nov 20, 2003 | Nov 20, 2003 | Minihan Oil & Gas Corporation | Phillips University P #400339168 | 7,800 |
| 538765 | Nov 19, 2003 | Nov 19, 2003 | Pogo Producing Co. | Clampett, Jed #1600339172 | 4,900 |
| 538764 | Nov 19, 2003 | Nov 19, 2003 | Pogo Producing Co. | Clampett, Jed #1500339171 | 4,900 |
| 538763 | Nov 19, 2003 | Nov 19, 2003 | Pogo Producing Co. | Clampett, Jed #1700339173 | 4,900 |
| 538762 | Nov 19, 2003 | Nov 19, 2003 | Pogo Producing Co. | Waggoner #1X00339170 | 4,900 |
| 538761 | Nov 19, 2003 | Nov 19, 2003 | Pogo Producing Co. | Elly May #100339169 | 4,900 |
| 537688 | Oct 23, 2003 | Oct 23, 2003 | Qualia, C. F. Operating Inc. | Andrews, Selma "A" #100338818 | 4,745 |
| 537434 | Oct 14, 2003 | Oct 14, 2003 | Encore Operating, L.P. | Ford, W.T. "A" #1400339100 | 6,000 |
| 537305 | Oct 10, 2003 | Oct 10, 2003 | Sloan Petroleum Inc. | Linaka "A" #200301011 | 12,600 |
| 535950 | Oct 3, 2003 | Oct 3, 2003 | BTA Oil Producers | 8802 JV-P Fuhrman -D- #300337046 | 7,200 |