| 659215 | Apr 24, 2008 | Apr 24, 2008 | Acock/Anaqua Operating Co., LP | Scanio, Miguelita #19 | 7,600 | 39132843 |
| 659215Amendment | Apr 24, 2008 | Apr 24, 2008 | Acock/Anaqua Operating Co., LP | Scanio, Miguelita #19 | 7,600 | 39132843 |
| 659780 | Apr 23, 2008 | Apr 23, 2008 | T - C Oil Company | Baumgartner -A- #3 | 8,000 | 39132844 |
| 659014 | Apr 23, 2008 | Apr 23, 2008 | Hilcorp Energy Company | Lambert Gas Unit #G 17 | 8,500 | 39132841 |
| 658766 | Apr 15, 2008 | Apr 15, 2008 | Charro Operating, L.L.C. | Vidauri "D" #8 | 8,000 | 39132840 |
| 658766Amendment | Apr 15, 2008 | Apr 15, 2008 | Charro Operating, L.L.C. | Vidauri "D" #8 | 8,000 | 39132840 |
| 658766Amendment | Apr 15, 2008 | Apr 15, 2008 | Charro Operating, L.L.C. | Vidauri "D" #8 | 8,000 | 39132840 |
| 651256 | Apr 15, 2008 | Apr 15, 2008 | Hilcorp Energy Company | Fox, W. J. "A" #47 | 8,200 | 39132651 |
| 658531 | Apr 12, 2008 | Apr 12, 2008 | Charro Operating, L.L.C. | Vidauri "F" #10 | 8,000 | 39132839 |
| 658531Amendment | Apr 12, 2008 | Apr 12, 2008 | Charro Operating, L.L.C. | Vidauri "F" #10 | 8,000 | 39132839 |
| 658420 | Apr 12, 2008 | Apr 12, 2008 | McDonald & Johnson Resources,llc | Fagan #4 | 5,654 | 39100154 |
| 658205 | Apr 10, 2008 | Apr 10, 2008 | Hilcorp Energy Company | Claude E. Heard et Al #7 | 5,925 | 39100668 |
| 654968 | Apr 10, 2008 | Apr 10, 2008 | Cambrian Management, Ltd. | O'Brien, J.M. #107 | 3,501 | 39130324 |
| 658016 | Apr 7, 2008 | Apr 7, 2008 | Hilcorp Energy Company | W. J. Fox "A" #49 | 7,004 | 39132797 |
| 658016Amendment | Apr 7, 2008 | Apr 7, 2008 | Hilcorp Energy Company | W. J. Fox "A" #49 | 7,004 | 39132797 |
| 657881 | Apr 3, 2008 | Apr 3, 2008 | Charro Operating, L.L.C. | Vidauri "G" #22 | 4,000 | 39132837 |
| 657816 | Apr 3, 2008 | Apr 3, 2008 | T - C Oil Company | Big Bottom #3 | 5,000 | 39132836 |
| 657816Amendment | Apr 3, 2008 | Apr 3, 2008 | T - C Oil Company | Big Bottom #3 | 5,000 | 39132836 |
| 658323 | Apr 2, 2008 | Apr 2, 2008 | Charro Operating, L.L.C. | Vidauri "F" #24 | 8,000 | 39132838 |
| 657641 | Mar 28, 2008 | Mar 28, 2008 | T - C Oil Company | Baumgartner -D- #2 | 8,000 | 39132835 |
| 657591 | Mar 28, 2008 | Mar 28, 2008 | T - C Oil Company | Baumgartner -D- #1 | 8,000 | 39132834 |
| 657444 | Mar 26, 2008 | Mar 26, 2008 | Hilcorp Energy Company | Williams, Maude et al "A" #D125 | 5,990 | 39131775 |
| 657429 | Mar 26, 2008 | Mar 26, 2008 | Hilcorp Energy Company | Tom O'Connor (4150 Ft. Sd.) Unit #W377A | 4,515 | 39103794 |
| 657595 | Mar 25, 2008 | Mar 25, 2008 | T - C Oil Company | Baumgartner -F- #1 | 8,000 | 39132833 |
| 657595Amendment | Mar 25, 2008 | Mar 25, 2008 | T - C Oil Company | Baumgartner -F- #1 | 8,000 | 39132833 |
| 657335 | Mar 25, 2008 | Mar 25, 2008 | T - C Oil Company | Baumgartner -C- #1 | 8,000 | 39132832 |
| 657330 | Mar 25, 2008 | Mar 25, 2008 | T - C Oil Company | Baumgartner -B- #1 | 8,000 | 39132831 |
| 657147 | Mar 25, 2008 | Mar 25, 2008 | Hilcorp Energy Company | O'Connor, Thomas "C" #19 | 5,925 | 39101129 |
| 657192 | Mar 24, 2008 | Mar 24, 2008 | Hilcorp Energy Company | M. F. Lambert #23 | 5,852 | 39101211 |
| 656925 | Mar 19, 2008 | Mar 19, 2008 | Hilcorp Energy Company | Clement Heard #36 | 6,200 | 39132533 |
| 657339 | Mar 14, 2008 | Mar 14, 2008 | T - C Oil Company | Baumgartner -E- #1 | 8,000 | 39132830 |
| 656748 | Mar 14, 2008 | Mar 14, 2008 | Charro Operating, L.L.C. | Vidauri 2 #1 | 4,000 | 39132829 |
| 656748Amendment | Mar 14, 2008 | Mar 14, 2008 | Charro Operating, L.L.C. | Vidauri "G" #11 | 4,000 | 39132829 |
| 656374 | Mar 12, 2008 | Mar 12, 2008 | High Plains Gas Systems, Inc. | Scanio/Shelton #11 | 8,800 | 39132828 |
| 656190 | Mar 7, 2008 | Mar 7, 2008 | Hilcorp Energy Company | Williams, Maude et al "A" #D128 | 4,644 | 39131776 |
| 656175 | Mar 6, 2008 | Mar 6, 2008 | Hilcorp Energy Company | Maude Williams et al "A" #D154 | 4,655 | 39131963 |
| 656140 | Mar 6, 2008 | Mar 6, 2008 | Hilcorp Energy Company | Maude Williams et al "A" #D 72 | 7,758 | 39130287 |
| 656138 | Mar 6, 2008 | Mar 6, 2008 | Hilcorp Energy Company | Tom O'Connor (5600 FT SD) Unit #W809B | 5,925 | 39100423 |
| 655899 | Mar 6, 2008 | Mar 6, 2008 | T - C Oil Company | Baumgartner -A- #2 | 5,000 | 39132826 |
| 655897 | Mar 6, 2008 | Mar 6, 2008 | T - C Oil Company | Baumgartner -A- #1 | 5,000 | 39132825 |
| 656373 | Mar 4, 2008 | Mar 4, 2008 | High Plains Gas Systems, Inc. | Scanio/Shelton #10 | 8,800 | 39132827 |
| 655798 | Feb 28, 2008 | Feb 28, 2008 | Hilcorp Energy Company | Thomas O'Connor "C" #87 | 6,152 | 39131839 |
| 655150 | Feb 28, 2008 | Feb 28, 2008 | Hilcorp Energy Company | Lambert, M. F. #101 | 5,250 | 39101442 |
| 655276 | Feb 22, 2008 | Feb 22, 2008 | Hilcorp Energy Company | Lambert Gas Unit #126 | 5,845 | 39101359 |
| 655231 | Feb 22, 2008 | Feb 22, 2008 | Hilcorp Energy Company | Heard, Claude et Al #24 | 5,923 | 39100654 |
| 655231Amendment | Feb 22, 2008 | Feb 22, 2008 | Hilcorp Energy Company | Heard, Claude E. et Al #24 | 5,923 | 39100654 |
| 655114 | Feb 21, 2008 | Feb 21, 2008 | Salida Exploration, LLC | Roche #4 | 7,900 | 39132824 |
| 655114Amendment | Feb 21, 2008 | Feb 21, 2008 | Salida Exploration, LLC | Roche #4 | 7,900 | 39132824 |
| 655077 | Feb 21, 2008 | Feb 21, 2008 | Hilcorp Energy Company | Thomas O'Connor "C" #50 | 5,895 | 39101573 |
| 654806 | Feb 15, 2008 | Feb 15, 2008 | T - C Oil Company | Big Bottom #2 | 5,000 | 39132823 |
| 654806Amendment | Feb 15, 2008 | Feb 15, 2008 | T - C Oil Company | Clay Pasture -B- State Unit #12 | 5,000 | 39132823 |
| 654622 | Feb 13, 2008 | Feb 13, 2008 | Maran Oil Company | Mary Alice Anderson et Al-A- #A 10 | 2,430 | 39130223 |
| 654622Amendment | Feb 13, 2008 | Feb 13, 2008 | Maran Oil Company | Mary Alice Anderson et Al-A- #A 10 | 2,430 | 39130223 |
| 654536 | Feb 11, 2008 | Feb 11, 2008 | T - C Oil Company | Mellon Oil Unit #29 | 5,400 | 39101591 |
| 654463 | Feb 8, 2008 | Feb 8, 2008 | T - C Oil Company | Big Bottom #1 | 5,000 | 39132822 |
| 654243 | Feb 8, 2008 | Feb 8, 2008 | Kebo Oil & Gas, Inc. | Thelma Heard #6 | 6,500 | 39132821 |
| 653607 | Feb 7, 2008 | Feb 7, 2008 | Hilcorp Energy Company | Lambert, Mary F. "EA" #A 8 | 5,950 | 39130315 |
| 653591 | Feb 7, 2008 | Feb 7, 2008 | Hilcorp Energy Company | Tom O'CONNOR(5600 Foot Sand)unit #W723B | 6,800 | 39132706 |
| 653503 | Feb 2, 2008 | Feb 2, 2008 | T - C Oil Company | Nordan & Morris,o'connor,thomas #14 | 7,900 | 39131178 |
| 653683 | Jan 31, 2008 | Jan 31, 2008 | Hilcorp Energy Company | Tom O'Connor (4150 Ft. Sd.) Unit #W909A | 5,925 | 39100515 |
| 653495 | Jan 29, 2008 | Jan 29, 2008 | T - C Oil Company | Strip #1 | 3,000 | 39132405 |
| 653397 | Jan 28, 2008 | Jan 28, 2008 | Hilcorp Energy Company | O'Connor, Thomas "C" #55 | 6,000 | 39101145 |
| 652523 | Jan 24, 2008 | Jan 24, 2008 | McDonald & Johnson Resources,llc | Fagan "C" #13 | 4,800 | 39132812 |
| 652625 | Jan 17, 2008 | Jan 17, 2008 | McDonald & Johnson Resources,llc | Fagan "C" #14 | 4,800 | 39132820 |
| 652620 | Jan 16, 2008 | Jan 16, 2008 | McDonald & Johnson Resources,llc | Fagan #15 | 4,800 | 39132816 |
| 652623 | Jan 15, 2008 | Jan 15, 2008 | McDonald & Johnson Resources,llc | Fagan "A" #A 5 | 4,800 | 39132818 |
| 652622 | Jan 15, 2008 | Jan 15, 2008 | McDonald & Johnson Resources,llc | Fagan "A" #A 4 | 4,800 | 39132817 |
| 652619 | Jan 15, 2008 | Jan 15, 2008 | McDonald & Johnson Resources,llc | Fagan #14 | 4,800 | 39132815 |
| 652616 | Jan 15, 2008 | Jan 15, 2008 | McDonald & Johnson Resources,llc | Marberry #20 | 4,800 | 39132819 |
| 652583 | Jan 15, 2008 | Jan 15, 2008 | Hilcorp Energy Company | Fox, W. J. #A 42 | 7,514 | 39130545 |
| 652541 | Jan 15, 2008 | Jan 15, 2008 | McDonald & Johnson Resources,llc | Marberry #19 | 4,800 | 39132813 |
| 652547 | Jan 14, 2008 | Jan 14, 2008 | McDonald & Johnson Resources,llc | Fagan #13 | 4,800 | 39132814 |
| 652515 | Jan 14, 2008 | Jan 14, 2008 | McDonald & Johnson Resources,llc | Fagan #12 | 4,800 | 39132811 |
| 652513 | Jan 14, 2008 | Jan 14, 2008 | McDonald & Johnson Resources,llc | Fagan #11 | 4,800 | 39132810 |
| 652500 | Jan 14, 2008 | Jan 14, 2008 | T - C Oil Company | T-C Oil Co.-O'Connor #27 | 2,765 | 39100270 |
| 652344 | Jan 11, 2008 | Jan 11, 2008 | Remora Management, LLC | Marberry "B" #5 | 5,400 | 39132808 |
| 652364 | Jan 10, 2008 | Jan 10, 2008 | Charro Operating, L.L.C. | Vidauri #12 | 6,200 | 39132809 |
| 652352 | Jan 10, 2008 | Jan 10, 2008 | McDonald & Johnson Resources,llc | Marberry #18 | 4,800 | 39132807 |
| 650242 | Jan 4, 2008 | Jan 4, 2008 | Cambrian Management, Ltd. | O'Brien, J. M. #109 | 3,550 | 39132512 |
| 647176 | Dec 21, 2007 | Dec 21, 2007 | Cambrian Management, Ltd. | O'Conner, Thomas #1 | 6,000 | 39100983 |
| 651270 | Dec 19, 2007 | Dec 19, 2007 | T - C Oil Company | Willow Creek -B- #6 | 10,000 | 39132806 |
| 651268 | Dec 18, 2007 | Dec 18, 2007 | T - C Oil Company | O'Connor, Martin -G- #2 | 10,000 | 39132805 |
| 651259 | Dec 18, 2007 | Dec 18, 2007 | Hilcorp Energy Company | O'Connor, Thomas "C" #78 | 6,750 | 39130220 |
| 651235 | Dec 18, 2007 | Dec 18, 2007 | T - C Oil Company | Willow Creek -B- #4 | 10,000 | 39132804 |
| 651235Amendment | Dec 18, 2007 | Dec 18, 2007 | T - C Oil Company | Willow Creek -B- #4 | 10,000 | 39132804 |
| 651265 | Dec 17, 2007 | Dec 17, 2007 | Hilcorp Energy Company | Tom O'CONNOR(5600 Foot Sand)unit #W506B | 5,925 | 39100843 |
| 651233 | Dec 17, 2007 | Dec 17, 2007 | Hilcorp Energy Company | Reilly, Annie et Vir #9 | 6,000 | 39100770 |
| 651233Amendment | Dec 17, 2007 | Dec 17, 2007 | Hilcorp Energy Company | Reilly, Annie et Vir #9 | 6,000 | 39100770 |
| 651003 | Dec 17, 2007 | Dec 17, 2007 | Emerald Oil & Gas LC | O'Brien, J J #2 | 6,549 | 39102536 |
| 650989 | Dec 15, 2007 | Dec 15, 2007 | Charro Operating, L.L.C. | M.V.O.C.-Baptist Unit #1 | 7,200 | 39132802 |
| 650868 | Dec 13, 2007 | Dec 13, 2007 | T - C Oil Company | O'Connor, Martin -B- #1 | 8,350 | 39132681 |
| 650656 | Dec 11, 2007 | Dec 11, 2007 | Acock/Anaqua Operating Co., LP | Heard #3 | 7,100 | 39132801 |
| 650064 | Dec 7, 2007 | Dec 7, 2007 | Hilcorp Energy Company | Tom O'Connor (5800 SD) Fld. Unit #3109Q | 6,100 | 39131889 |
| 650246 | Dec 6, 2007 | Dec 6, 2007 | Cambrian Management, Ltd. | Heard, Fannie V. W. #34 | 6,058 | 39132478 |
| 649069 | Dec 5, 2007 | Dec 5, 2007 | Hilcorp Energy Company | Fox, W. J. #A 44 | 7,517 | 39131223 |
| 650591 | Dec 3, 2007 | Dec 3, 2007 | McDonald & Johnson Resources,llc | Marberry #17 | 4,800 | 39132800 |
| 650158 | Dec 3, 2007 | Dec 3, 2007 | Drillmar Operating Company | Rooke Ranch #1 | 12,000 | 39132799 |
| 650151 | Nov 30, 2007 | Nov 30, 2007 | Hilcorp Energy Company | Lambert, M. F. #211R | 9,000 | 39132798 |
| 649980 | Nov 29, 2007 | Nov 29, 2007 | Hilcorp Energy Company | W. J. Fox "A" #49 | 9,000 | 39132797 |
| 649902 | Nov 29, 2007 | Nov 29, 2007 | Charro Operating, L.L.C. | Lide #1 | 6,100 | 39132796 |