| 612936 | Jan 24, 2006 | Jan 24, 2006 | Apache Corporation | University BQ #900339761 | 7,000 |
| 612651 | Jan 24, 2006 | Jan 24, 2006 | Minihan Oil & Gas Ltd. | Phillips University 15-11 #300339753 | 8,000 |
| 612651Amendment | Jan 24, 2006 | Jan 24, 2006 | Forest Oil Corporation | Phillips University 15-11 #300339753 | 7,900 |
| 612716 | Jan 23, 2006 | Jan 23, 2006 | Latigo Petroleum Texas, LP | Sam #100339752 | 4,500 |
| 612716Amendment | Jan 23, 2006 | Jan 23, 2006 | Latigo Petroleum Texas, LP | Sam #100339752 | 4,500 |
| 612659 | Jan 23, 2006 | Jan 23, 2006 | Minihan Oil & Gas Ltd. | Phillips University P #900339758 | 8,000 |
| 612659Amendment | Jan 23, 2006 | Jan 23, 2006 | Forest Oil Corporation | Phillips University P #900339758 | 7,900 |
| 612658 | Jan 23, 2006 | Jan 23, 2006 | Minihan Oil & Gas Ltd. | Phillips University P #1000339757 | 8,000 |
| 612658Amendment | Jan 23, 2006 | Jan 23, 2006 | Forest Oil Corporation | Phillips University P #1000339757 | 7,900 |
| 612656 | Jan 23, 2006 | Jan 23, 2006 | Minihan Oil & Gas Ltd. | Phillips University P #1100339756 | 8,000 |
| 612656Amendment | Jan 23, 2006 | Jan 23, 2006 | Forest Oil Corporation | Phillips University P #1100339756 | 7,900 |
| 612654 | Jan 23, 2006 | Jan 23, 2006 | Minihan Oil & Gas Ltd. | Phillips University P #1200339755 | 8,000 |
| 612650 | Jan 23, 2006 | Jan 23, 2006 | Minihan Oil & Gas Ltd. | Phillips University T #1000339750 | 8,000 |
| 612650Amendment | Jan 23, 2006 | Jan 23, 2006 | Forest Oil Corporation | Phillips University T #1000339750 | 7,900 |
| 612684 | Jan 19, 2006 | Jan 19, 2006 | Whiting Oil and Gas Corporation | University -2- #20600339751 | 8,100 |
| 612310 | Jan 18, 2006 | Jan 18, 2006 | Conocophillips Company | Embar -B- #5200339749 | 6,650 |
| 612038 | Jan 12, 2006 | Jan 12, 2006 | Occidental Permian Ltd. | Midland Farms Unit #217A00339745 | 4,900 |
| 611924 | Jan 5, 2006 | Jan 5, 2006 | Whiting Oil and Gas Corporation | University 3 #31000339744 | 8,100 |
| 611920 | Jan 5, 2006 | Jan 5, 2006 | Whiting Oil and Gas Corporation | University 2 #20700339743 | 8,100 |
| 611920Amendment | Jan 5, 2006 | Jan 5, 2006 | Whiting Oil and Gas Corporation | University 2 #20700339743 | 8,100 |
| 611895 | Jan 5, 2006 | Jan 5, 2006 | Conocophillips Company | University -UA- #200339742 | 7,800 |
| 610283 | Jan 3, 2006 | Jan 3, 2006 | Encore Operating, L.P. | Gray, Columbus et Al #213600339714 | 4,800 |
| 609806 | Dec 21, 2005 | Dec 21, 2005 | Range Production Company | West Fuhrman-Mascho Unit #30900339708 | 4,900 |
| 611071 | Dec 19, 2005 | Dec 19, 2005 | Range Production Company | Northeast Fuhrman-Mascho Unit #11400339741 | 4,900 |
| 611070 | Dec 19, 2005 | Dec 19, 2005 | Range Production Company | Northeast Fuhrman-Mascho Unit #11900339740 | 4,900 |
| 611068 | Dec 19, 2005 | Dec 19, 2005 | Range Production Company | Northeast Fuhrman-Mascho Unit #12000339739 | 4,900 |
| 611066 | Dec 19, 2005 | Dec 19, 2005 | Range Production Company | Northeast Fuhrman-Mascho Unit #12100339738 | 4,900 |
| 611096 | Dec 16, 2005 | Dec 16, 2005 | Rising Star Energy, L.L.C. | Mabee #700339737 | 11,000 |
| 611096Amendment | Dec 16, 2005 | Dec 16, 2005 | Rising Star Energy, L.L.C. | Mabee #700339737 | 11,000 |
| 610807 | Dec 14, 2005 | Dec 14, 2005 | Chevron U. S. A. Inc. | Mabee Unit #396HH00330723 | 8,000 |
| 610760 | Dec 9, 2005 | Dec 9, 2005 | Hunt Oil Company | J.M. White "A" #9W00339736 | 5,000 |
| 609054 | Dec 9, 2005 | Dec 9, 2005 | Brown, H.L. Operating, L.L.C. | Norman #100307863 | 13,010 |
| 610736 | Dec 8, 2005 | Dec 8, 2005 | Hunt Oil Company | Deford White Oil Unit 2 #11W00339735 | 5,000 |
| 610652 | Dec 8, 2005 | Dec 8, 2005 | OK Arena Operating Company | Seidel #900339734 | 4,800 |
| 610652Amendment | Dec 8, 2005 | Dec 8, 2005 | OK Arena Operating Company | Seidel #900339734 | 4,800 |
| 610638 | Dec 8, 2005 | Dec 8, 2005 | OK Arena Operating Company | Lockhart & Brown A #200339733 | 4,800 |
| 609620 | Dec 8, 2005 | Dec 8, 2005 | Conocophillips Company | University Andrews #14300339704 | 6,700 |
| 610653 | Dec 7, 2005 | Dec 7, 2005 | Parallel Petroleum Corporation | Iverson #100339730 | 8,000 |
| 610592 | Dec 7, 2005 | Dec 7, 2005 | OK Arena Operating Company | Olsen #300339732 | 4,800 |
| 610577 | Dec 7, 2005 | Dec 7, 2005 | OK Arena Operating Company | Bassel #800339731 | 4,800 |
| 610561 | Dec 7, 2005 | Dec 7, 2005 | OK Arena Operating Company | Ernesteen #700339729 | 4,800 |
| 610512 | Dec 7, 2005 | Dec 7, 2005 | OK Arena Operating Company | Ernesteen #600339728 | 4,800 |
| 610482 | Dec 7, 2005 | Dec 7, 2005 | OK Arena Operating Company | Fuhrman B #400339726 | 4,800 |
| 610474 | Dec 7, 2005 | Dec 7, 2005 | OK Arena Operating Company | M.A. Thornberry Cons. III #900339727 | 4,800 |
| 610471 | Dec 7, 2005 | Dec 7, 2005 | OK Arena Operating Company | Thornberry 7 #400339724 | 4,800 |
| 610470 | Dec 7, 2005 | Dec 7, 2005 | OK Arena Operating Company | Thornberry 7 #300339725 | 4,800 |
| 610469 | Dec 7, 2005 | Dec 7, 2005 | OK Arena Operating Company | Boyd #400339723 | 4,800 |
| 610465 | Dec 7, 2005 | Dec 7, 2005 | OK Arena Operating Company | Thornberry 7N #500339721 | 4,800 |
| 610428 | Dec 6, 2005 | Dec 6, 2005 | OK Arena Operating Company | Anita #700339720 | 4,800 |
| 610418 | Dec 6, 2005 | Dec 6, 2005 | OK Arena Operating Company | Munger Nix 1 #300306769 | 4,650 |
| 610407 | Dec 6, 2005 | Dec 6, 2005 | OK Arena Operating Company | Zeismer #200332243 | 4,800 |
| 610404 | Dec 6, 2005 | Dec 6, 2005 | OK Arena Operating Company | Zeismer #100332206 | 4,800 |
| 610396 | Dec 6, 2005 | Dec 6, 2005 | OK Arena Operating Company | Seidel #400331867 | 4,770 |
| 610388 | Dec 6, 2005 | Dec 6, 2005 | Occidental Permian Ltd. | Midland Farms Unit #72800339719 | 4,900 |
| 610386 | Dec 6, 2005 | Dec 6, 2005 | Occidental Permian Ltd. | Midland Farms Unit #72700339718 | 4,900 |
| 610385 | Dec 6, 2005 | Dec 6, 2005 | Occidental Permian Ltd. | Midland Farms Unit #72600339717 | 4,900 |
| 610431 | Dec 5, 2005 | Dec 5, 2005 | COG Operating LLC | Southland Royalty "D" #400339716 | 10,000 |
| 610421 | Dec 5, 2005 | Dec 5, 2005 | COG Operating LLC | Perkins, Shell #1000339715 | 10,000 |
| 610198 | Nov 30, 2005 | Nov 30, 2005 | Pure Resources, L.P. | Dollarhide Unit #3515S00339711 | 10,000 |
| 610198Amendment | Nov 30, 2005 | Nov 30, 2005 | Pure Resources, L.P. | Dollarhide Unit #3515S00339711 | 10,000 |
| 610195 | Nov 30, 2005 | Nov 30, 2005 | Pure Resources, L.P. | Dollarhide Unit #256S00339713 | 10,000 |
| 610192 | Nov 30, 2005 | Nov 30, 2005 | Pure Resources, L.P. | Dollarhide Unit #255S00339712 | 10,000 |
| 610178 | Nov 30, 2005 | Nov 30, 2005 | Pure Resources, L.P. | Dollarhide Unit #394S00339710 | 10,000 |
| 609629 | Nov 29, 2005 | Nov 29, 2005 | Conocophillips Company | University Andrews #14200339705 | 6,720 |
| 609840 | Nov 28, 2005 | Nov 28, 2005 | Chevron U. S. A. Inc. | Mabee Unit #356HH00330537 | 8,000 |
| 609837 | Nov 28, 2005 | Nov 28, 2005 | Chevron U. S. A. Inc. | Mabee Unit #111HH00306954 | 8,000 |
| 609834 | Nov 28, 2005 | Nov 28, 2005 | Encore Operating, L.P. | Gray, Columbus #1914R00339709 | 4,800 |
| 609095 | Nov 23, 2005 | Nov 23, 2005 | BP America Production Company | University 11 Sec 1 #2A00300290 | 8,923 |
| 609095Amendment | Nov 23, 2005 | Nov 23, 2005 | BP America Production Company | University 11 Sec 1 #2A00300290 | 8,923 |
| 609092 | Nov 23, 2005 | Nov 23, 2005 | BP America Production Company | University 11 Sec. 1 #1A00300433 | 9,060 |
| 609627 | Nov 21, 2005 | Nov 21, 2005 | Chevron U. S. A. Inc. | Mabee Unit #632HH00336703 | 8,000 |
| 609625 | Nov 21, 2005 | Nov 21, 2005 | Chevron U. S. A. Inc. | Mabee Unit #617HH00336671 | 8,000 |
| 609379 | Nov 18, 2005 | Nov 18, 2005 | Encore Operating, L.P. | Gray, Columbus #2213R00339706 | 4,800 |
| 609366 | Nov 14, 2005 | Nov 14, 2005 | Encore Operating, L.P. | Gray, Columbus #2212R00339703 | 4,800 |
| 609361 | Nov 14, 2005 | Nov 14, 2005 | Encore Operating, L.P. | Gray, Columbus #2202R00339702 | 4,800 |
| 609332 | Nov 14, 2005 | Nov 14, 2005 | Encore Operating, L.P. | Gray, Columbus #193600339701 | 4,800 |
| 609326 | Nov 14, 2005 | Nov 14, 2005 | Chevron U. S. A. Inc. | Mabee Unit #397HH00330722 | 8,500 |
| 609258 | Nov 10, 2005 | Nov 10, 2005 | Conocophillips Company | University Andrews #14500339700 | 6,700 |
| 609218 | Nov 10, 2005 | Nov 10, 2005 | Conocophillips Company | University Andrews #14400339699 | 6,700 |
| 608519 | Nov 10, 2005 | Nov 10, 2005 | Texland Petroleum, L.P. | Scarborough Unit #208500339698 | 4,800 |
| 609093 | Nov 8, 2005 | Nov 8, 2005 | BP America Production Company | University 11 Sec 1 #1D00300451 | 8,950 |
| 608725 | Nov 1, 2005 | Nov 1, 2005 | Chevron U. S. A. Inc. | Mabee Unit #611HH00336634 | 9,000 |
| 608517 | Oct 28, 2005 | Oct 28, 2005 | Andector Exploration Company | Cowden -F- #300333037 | 7,800 |
| 608214 | Oct 21, 2005 | Oct 21, 2005 | Chevron U. S. A. Inc. | Mabee Unit #51HH00306913 | 8,000 |
| 608212 | Oct 21, 2005 | Oct 21, 2005 | Chevron U. S. A. Inc. | Mabee Unit #318HH00307256 | 8,000 |
| 608208 | Oct 21, 2005 | Oct 21, 2005 | Naumann Oil & Gas, Inc. | State FH #300339697 | 5,900 |
| 608207 | Oct 21, 2005 | Oct 21, 2005 | Naumann Oil & Gas, Inc. | State FY #700339696 | 5,900 |
| 607633 | Oct 20, 2005 | Oct 20, 2005 | Range Production Company | West Fuhrman-Mascho Unit #36400339688 | 4,900 |
| 607631 | Oct 20, 2005 | Oct 20, 2005 | Range Production Company | West Fuhrman-Mascho Unit #36500339686 | 4,900 |
| 608002 | Oct 19, 2005 | Oct 19, 2005 | Sage Energy Company | Scarborough #1000339695 | 4,800 |
| 607997 | Oct 19, 2005 | Oct 19, 2005 | Parish, John R. | Park #6R00339694 | 4,800 |
| 607636 | Oct 19, 2005 | Oct 19, 2005 | Range Production Company | West Fuhrman-Mascho Unit #29400339691 | 4,900 |
| 607626 | Oct 19, 2005 | Oct 19, 2005 | Range Production Company | West Fuhrman-Mascho Unit #28700339682 | 4,900 |
| 607625 | Oct 14, 2005 | Oct 14, 2005 | Range Production Company | West Fuhrman-Mascho Unit #28900339681 | 4,900 |
| 607635 | Oct 13, 2005 | Oct 13, 2005 | Range Production Company | West Fuhrman-Mascho Unit #29500339690 | 4,900 |
| 607630 | Oct 13, 2005 | Oct 13, 2005 | Range Production Company | West Fuhrman-Mascho Unit #36600339689 | 4,900 |
| 607629 | Oct 13, 2005 | Oct 13, 2005 | Range Production Company | West Fuhrman-Mascho Unit #36700339685 | 4,900 |
| 607628 | Oct 13, 2005 | Oct 13, 2005 | Range Production Company | West Fuhrman-Mascho Unit #36800339687 | 4,900 |
| 607627 | Oct 13, 2005 | Oct 13, 2005 | Range Production Company | West Fuhrman-Mascho Unit #36900339684 | 4,900 |
| 607436 | Oct 13, 2005 | Oct 13, 2005 | XTO Energy Inc. | University "9" C #5HH00338160 | 11,300 |