| 557266 | Feb 4, 2005 | Feb 4, 2005 | Fasken Oil and Ranch, Ltd. | Fee "AM" #100339468 | 5,700 |
| 557239 | Feb 4, 2005 | Feb 4, 2005 | Occidental Permian Ltd. | Midland Farms -AK- A #20700330725 | 12,680 |
| 557053 | Feb 3, 2005 | Feb 3, 2005 | Sage Energy Company | Biles, J. D. #6 A00337149 | 7,550 |
| 557166 | Feb 2, 2005 | Feb 2, 2005 | Stephens & Johnson Operating Co. | University "C-16" #300339456 | 7,500 |
| 556538 | Jan 31, 2005 | Jan 31, 2005 | COG Operating LLC | Bitler Lowe Clearfork Unit #2000339443 | 7,300 |
| 556537 | Jan 31, 2005 | Jan 31, 2005 | COG Operating LLC | Bitler Lowe Clearfork Unit #1800339448 | 7,300 |
| 556534 | Jan 31, 2005 | Jan 31, 2005 | COG Operating LLC | Bitler Lowe Clearfork Unit #1700339446 | 7,300 |
| 556533 | Jan 31, 2005 | Jan 31, 2005 | COG Operating LLC | Bitler Lowe Clearfork Unit #1900339445 | 7,300 |
| 556327Amendment | Jan 31, 2005 | Jan 31, 2005 | Conocophillips Company | University Andrews #13000339441 | 6,550 |
| 556715 | Jan 28, 2005 | Jan 28, 2005 | Conocophillips Company | University Andrews #13200339454 | 6,550 |
| 556820 | Jan 27, 2005 | Jan 27, 2005 | Westport Oil and Gas Company, LP | Fisher #100339455 | 9,700 |
| 556820Amendment | Jan 27, 2005 | Jan 27, 2005 | Westport Oil and Gas Company, LP | Fisher #100339455 | 9,700 |
| 556623 | Jan 26, 2005 | Jan 26, 2005 | Conocophillips Company | University Andrews #13300339450 | 6,550 |
| 556700 | Jan 25, 2005 | Jan 25, 2005 | XTO Energy Inc. | State University 9 BA #1300339452 | 5,000 |
| 556699 | Jan 25, 2005 | Jan 25, 2005 | XTO Energy Inc. | State University At #1000339453 | 5,000 |
| 556688 | Jan 25, 2005 | Jan 25, 2005 | XTO Energy Inc. | State University 9 BA #1200339451 | 5,000 |
| 554702 | Jan 25, 2005 | Jan 25, 2005 | XTO Energy Inc. | University Block 9 Wolfcamp Unit #7N00338715 | 10,700 |
| 556626 | Jan 24, 2005 | Jan 24, 2005 | Pogo Producing Company | Clampett, Jed "D" #8 W00339449 | 4,900 |
| 556536 | Jan 24, 2005 | Jan 24, 2005 | COG Operating LLC | Bitler Lowe Clearfork Unit #1600339447 | 7,300 |
| 556532 | Jan 24, 2005 | Jan 24, 2005 | COG Operating LLC | Bitler Lowe Clearfork Unit #1500339444 | 7,300 |
| 556377 | Jan 20, 2005 | Jan 20, 2005 | Apache Corporation | University CF #1100337217 | 9,800 |
| 556327 | Jan 20, 2005 | Jan 20, 2005 | Conocophillips Company | University Andrews #13000339441 | 6,250 |
| 556298 | Jan 20, 2005 | Jan 20, 2005 | Conocophillips Company | University Andrews #13100339442 | 6,550 |
| 556239 | Jan 14, 2005 | Jan 14, 2005 | Pogo Producing Co. | Clampett, Jed "A" #8W00339440 | 4,900 |
| 556239Amendment | Jan 14, 2005 | Jan 14, 2005 | Pogo Producing Co. | Clampett, Jed "A" #8 W00339440 | 4,900 |
| 556238 | Jan 14, 2005 | Jan 14, 2005 | Pogo Producing Co. | Clampett, Jed "A" #9W00339439 | 4,900 |
| 556238Amendment | Jan 14, 2005 | Jan 14, 2005 | Pogo Producing Co. | Clampett, Jed "A" #9 W00339439 | 4,900 |
| 555687 | Jan 12, 2005 | Jan 12, 2005 | Range Production Company | West Fuhrman-Mascho Unit #29800339435 | 4,900 |
| 555727 | Jan 10, 2005 | Jan 10, 2005 | Encore Operating, L.P. | Gray, Columbus et Al #224300339438 | 4,700 |
| 555726 | Jan 10, 2005 | Jan 10, 2005 | Encore Operating, L.P. | Gray, Columbus et Al #224200339437 | 4,700 |
| 555711 | Jan 7, 2005 | Jan 7, 2005 | Encore Operating, L.P. | Gray, Columbus et Al #224100339436 | 4,700 |
| 555705 | Jan 7, 2005 | Jan 7, 2005 | Encore Operating, L.P. | Gray, Columbus et Al #224000339433 | 4,700 |
| 555698 | Jan 7, 2005 | Jan 7, 2005 | Encore Operating, L.P. | Gray, Columbus et Al #223800339434 | 4,700 |
| 554252 | Jan 6, 2005 | Jan 6, 2005 | Pure Resources, L.P. | Dollarhide Unit #1844D00304930 | 7,700 |
| 555505 | Jan 5, 2005 | Jan 5, 2005 | Range Production Company | West Fuhrman-Mascho Unit #22400339432 | 4,900 |
| 555566 | Jan 4, 2005 | Jan 4, 2005 | Conocophillips Company | Embar -B- #600304505 | 11,645 |
| 555379 | Dec 30, 2004 | Dec 30, 2004 | Range Production Company | West Fuhrman-Mascho Unit #22600339427 | 4,900 |
| 554821 | Dec 30, 2004 | Dec 30, 2004 | Range Production Company | West Fuhrman-Mascho Unit #30700339418 | 4,900 |
| 555381 | Dec 29, 2004 | Dec 29, 2004 | Range Production Company | West Fuhrman-Mascho Unit #25500339429 | 4,900 |
| 555384 | Dec 28, 2004 | Dec 28, 2004 | Range Production Company | West Fuhrman-Mascho Unit #30300339431 | 4,900 |
| 555382 | Dec 28, 2004 | Dec 28, 2004 | Range Production Company | West Fuhrman-Mascho Unit #30000339430 | 4,900 |
| 555380 | Dec 28, 2004 | Dec 28, 2004 | Range Production Company | West Fuhrman-Mascho Unit #23200339426 | 4,900 |
| 555378 | Dec 28, 2004 | Dec 28, 2004 | Range Production Company | West Fuhrman-Mascho Unit #22300339428 | 4,900 |
| 555213 | Dec 22, 2004 | Dec 22, 2004 | OXY USA WTP LP | Bumpa Grande #100339425 | 8,700 |
| 555198 | Dec 22, 2004 | Dec 22, 2004 | Apache Corporation | University BQ #600339421 | 6,000 |
| 555198Amendment | Dec 22, 2004 | Dec 22, 2004 | Apache Corporation | University BQ #600339421 | 6,000 |
| 555197 | Dec 22, 2004 | Dec 22, 2004 | Apache Corporation | University BQ #700339422 | 6,000 |
| 555197Amendment | Dec 22, 2004 | Dec 22, 2004 | Apache Corporation | University BQ #700339422 | 6,000 |
| 555196 | Dec 22, 2004 | Dec 22, 2004 | Apache Corporation | University BQ #800339423 | 6,000 |
| 555196Amendment | Dec 22, 2004 | Dec 22, 2004 | Apache Corporation | University BQ #800339423 | 6,000 |
| 555195 | Dec 22, 2004 | Dec 22, 2004 | Apache Corporation | University BX #1100339424 | 6,000 |
| 555195Amendment | Dec 22, 2004 | Dec 22, 2004 | Apache Corporation | University BX #1100339424 | 6,000 |
| 555038 | Dec 20, 2004 | Dec 20, 2004 | Conocophillips Company | Embar B #4900339420 | 6,550 |
| 554720 | Dec 17, 2004 | Dec 17, 2004 | Encore Operating, L.P. | Ford, W.T. "D" #700339415 | 4,700 |
| 554841 | Dec 16, 2004 | Dec 16, 2004 | Westport Oil and Gas Company, LP | Andrews Unit #80200339419 | 9,700 |
| 554819 | Dec 16, 2004 | Dec 16, 2004 | Range Production Company | West Fuhrman-Mascho Unit #30600339417 | 4,900 |
| 554782 | Dec 15, 2004 | Dec 15, 2004 | Minihan Oil & Gas Ltd. | Phillips University O #200330237 | 4,700 |
| 554729 | Dec 15, 2004 | Dec 15, 2004 | Encore Operating, L.P. | Ford, W.T. "D" #800339416 | 4,700 |
| 554678 | Dec 15, 2004 | Dec 15, 2004 | Range Production Company | West Fuhrman-Mascho Unit #26200339409 | 4,900 |
| 554677 | Dec 15, 2004 | Dec 15, 2004 | Range Production Company | West Fuhrman-Mascho Unit #26300339408 | 4,900 |
| 554675 | Dec 15, 2004 | Dec 15, 2004 | Range Production Company | West Fuhrman-Mascho Unit #26100339407 | 4,900 |
| 554685 | Dec 14, 2004 | Dec 14, 2004 | Range Production Company | West Fuhrman-Mascho Unit #27200339406 | 4,900 |
| 554682 | Dec 14, 2004 | Dec 14, 2004 | Range Production Company | West Fuhrman-Mascho Unit #27400339413 | 4,900 |
| 554679 | Dec 14, 2004 | Dec 14, 2004 | Range Production Company | West Fuhrman-Mascho Unit #27600339410 | 4,900 |
| 554684 | Dec 13, 2004 | Dec 13, 2004 | Range Production Company | West Fuhrman-Mascho Unit #29600339414 | 4,900 |
| 554681 | Dec 13, 2004 | Dec 13, 2004 | Range Production Company | West Fuhrman-Mascho Unit #29300339412 | 4,900 |
| 554680 | Dec 13, 2004 | Dec 13, 2004 | Range Production Company | West Fuhrman-Mascho Unit #28800339411 | 4,900 |
| 554667 | Dec 13, 2004 | Dec 13, 2004 | Occidental Permian Ltd. | Midland Farms Deep Unit #14700335315 | 12,850 |
| 554629 | Dec 10, 2004 | Dec 10, 2004 | Encore Operating, L.P. | Ford, W.T. "B" #151600339405 | 4,700 |
| 554307 | Dec 7, 2004 | Dec 7, 2004 | Latigo Petroleum Texas, LP | University "30" #500339404 | 5,100 |
| 554358 | Dec 3, 2004 | Dec 3, 2004 | Energen Resources Corporation | University "14-A" #200339035 | 9,000 |
| 554262 | Dec 3, 2004 | Dec 3, 2004 | Pure Resources, L.P. | U-Texas 36994 #400310120 | 12,675 |
| 554235 | Dec 3, 2004 | Dec 3, 2004 | Encore Operating, L.P. | Gray, Columbus et Al #223700339403 | 4,700 |
| 554232 | Dec 3, 2004 | Dec 3, 2004 | Encore Operating, L.P. | Gray, Columbus et Al #223600339402 | 4,700 |
| 554229 | Dec 3, 2004 | Dec 3, 2004 | Encore Operating, L.P. | Gray, Columbus et Al #223500339401 | 4,700 |
| 553946 | Nov 29, 2004 | Nov 29, 2004 | Apache Corporation | University AQ #100334426 | 8,386 |
| 553884 | Nov 19, 2004 | Nov 19, 2004 | Occidental Permian Ltd. | Fullerton/San Andres/Unit #11 S00339400 | 1,800 |
| 553720 | Nov 18, 2004 | Nov 18, 2004 | Minihan Oil & Gas Ltd. | Phillips University "O" #600339398 | 7,600 |
| 553770 | Nov 17, 2004 | Nov 17, 2004 | Hunt Oil Company | Carter, Amon #100336289 | 5,900 |
| 553764 | Nov 17, 2004 | Nov 17, 2004 | EOG Resources, Inc. | University 1-26 #1 HH00339399 | 11,500 |
| 553511 | Nov 15, 2004 | Nov 15, 2004 | Pogo Producing Co. | Clampett, Jed #19W00339394 | 4,900 |
| 553509 | Nov 15, 2004 | Nov 15, 2004 | Pogo Producing Co. | Clampett, Jed #6W00339396 | 4,900 |
| 553509Amendment | Nov 15, 2004 | Nov 15, 2004 | Pogo Producing Co. | Clampett, Jed "D" #6 W00339396 | 4,900 |
| 553508 | Nov 15, 2004 | Nov 15, 2004 | Pogo Producing Co. | Clampett, Jed #20W00339395 | 4,900 |
| 553507 | Nov 15, 2004 | Nov 15, 2004 | Pogo Producing Co. | Clampett, Jed #21W00339397 | 4,900 |
| 553282 | Nov 5, 2004 | Nov 5, 2004 | Zinke & Trumbo, Inc. | State of Texas "BV" #100307100 | 7,020 |
| 553240 | Nov 5, 2004 | Nov 5, 2004 | Apache Corporation | University BX #1000339393 | 6,000 |
| 552974 | Nov 3, 2004 | Nov 3, 2004 | Encore Operating, L.P. | Gray, Columbus et Al #193400339392 | 4,700 |
| 550274 | Nov 3, 2004 | Nov 3, 2004 | Apache Corporation | University AD #600339215 | 8,110 |
| 552979 | Nov 1, 2004 | Nov 1, 2004 | Encore Operating, L.P. | Gray, Columbus et Al #223400339391 | 4,700 |
| 552866 | Oct 29, 2004 | Oct 29, 2004 | Encore Operating, L.P. | Gray, Columbus et Al #193300339390 | 4,700 |
| 552863 | Oct 28, 2004 | Oct 28, 2004 | Encore Operating, L.P. | Gray, Columbus et Al #193200339389 | 4,700 |
| 552587 | Oct 21, 2004 | Oct 21, 2004 | Phoenix Petrocorp, Inc. | South Fuhrman Mascho Unit #98900339385 | 5,000 |
| 552586 | Oct 21, 2004 | Oct 21, 2004 | Phoenix Petrocorp, Inc. | South Fuhrman Mascho Unit #96700339386 | 5,000 |
| 552585 | Oct 21, 2004 | Oct 21, 2004 | Phoenix Petrocorp, Inc. | South Fuhrman Mascho Unit #95800339387 | 5,000 |
| 552584 | Oct 21, 2004 | Oct 21, 2004 | Phoenix Petrocorp, Inc. | South Fuhrman Mascho Unit #96900339384 | 5,000 |
| 552480 | Oct 21, 2004 | Oct 21, 2004 | Conocophillips Company | University Andrews #12800339388 | 6,250 |
| 551414 | Oct 21, 2004 | Oct 21, 2004 | Devon Energy Production Co, L.P. | Fullerton San Andres Unit #1200339372 | 4,820 |
| 552500 | Oct 20, 2004 | Oct 20, 2004 | Conocophillips Company | University Andrews #12900339383 | 6,250 |
| 552302 | Oct 14, 2004 | Oct 14, 2004 | Bass Enterprises Production Co. | University "38BQ" #100339382 | 13,000 |