| 649836 | Nov 27, 2007 | Nov 27, 2007 | T - C Oil Company | WLP #52 | 6,000 | 39132795 |
| 649581 | Nov 26, 2007 | Nov 26, 2007 | T - C Oil Company | WLP #53 | 6,000 | 39132793 |
| 649697 | Nov 21, 2007 | Nov 21, 2007 | Hilcorp Energy Company | M. F. Lambert #214 | 9,000 | 39132794 |
| 647734 | Nov 20, 2007 | Nov 20, 2007 | Hilcorp Energy Company | Williams, Maude et al "A" #76 | 4,500 | 39100465 |
| 649506 | Nov 17, 2007 | Nov 17, 2007 | T - C Oil Company | Duke Ranch-L- #1 | 5,250 | 39132664 |
| 649402 | Nov 16, 2007 | Nov 16, 2007 | Hilcorp Energy Company | Heard, Clement #19 | 7,778 | 39130163 |
| 649067 | Nov 14, 2007 | Nov 14, 2007 | Hilcorp Energy Company | Thomas Oconnor "C" #36 | 5,925 | 39101150 |
| 649053 | Nov 14, 2007 | Nov 14, 2007 | Hilcorp Energy Company | Lambert, M. F. #51 | 5,913 | 39101429 |
| 648870 | Nov 14, 2007 | Nov 14, 2007 | Acock/Anaqua Operating Co., LP | Scanio, Miguelita #18 | 7,200 | 39132792 |
| 648870Amendment | Nov 14, 2007 | Nov 14, 2007 | Acock/Anaqua Operating Co., LP | Scanio, Miguelita #18 | 7,400 | 39132792 |
| 649040 | Nov 12, 2007 | Nov 12, 2007 | Hilcorp Energy Company | Thomas Oconnor "A" #5 | 5,846 | 39101498 |
| 649038 | Nov 12, 2007 | Nov 12, 2007 | Hilcorp Energy Company | Heard, Fannie V. W., Mrs. #93 | 4,500 | 39130060 |
| 649005 | Nov 9, 2007 | Nov 9, 2007 | Salida Exploration, LLC | Roche #3 | 8,000 | 39132791 |
| 648904 | Nov 9, 2007 | Nov 9, 2007 | Hilcorp Energy Company | O'Connor, Thomas "C" #19 | 5,925 | 39101129 |
| 648901 | Nov 9, 2007 | Nov 9, 2007 | Hilcorp Energy Company | Tom O'CONNOR(5800 Sd)fld Unit #Q403G | 5,980 | 39100556 |
| 644824 | Oct 29, 2007 | Oct 29, 2007 | Hilcorp Energy Company | Williams, Maude et al "C" #6 | 6,139 | 39132221 |
| 647737 | Oct 18, 2007 | Oct 18, 2007 | Hilcorp Energy Company | Williams, Maude et al "A" #D 81 | 4,650 | 39130336 |
| 647736 | Oct 18, 2007 | Oct 18, 2007 | Hilcorp Energy Company | O'Connor, Thomas 'A' #65 | 5,969 | 39101479 |
| 647735 | Oct 18, 2007 | Oct 18, 2007 | Hilcorp Energy Company | Heard, Claude E. et Al #34 | 6,290 | 39100662 |
| 646995 | Oct 4, 2007 | Oct 4, 2007 | Kebo Oil & Gas, Inc. | Thelma Heard #5 | 6,900 | 39132789 |
| 645291 | Oct 4, 2007 | Oct 4, 2007 | American Energy Partners, Inc. | Kathryn Dunnam #1 | 3,500 | 39132790 |
| 646936 | Oct 3, 2007 | Oct 3, 2007 | T - C Oil Company | O'Connor #76X | 2,515 | 39132058 |
| 646896 | Oct 3, 2007 | Oct 3, 2007 | T - C Oil Company | Martin O'Connor-K- #1 | 10,000 | 39132788 |
| 646889 | Oct 3, 2007 | Oct 3, 2007 | T - C Oil Company | T-C Oil Co.-O'Connor #58 | 4,500 | 39130383 |
| 646771 | Oct 2, 2007 | Oct 2, 2007 | Hilcorp Energy Company | Bauer, Mary Claire et Vir #10 | 6,688 | 39130128 |
| 646770 | Oct 1, 2007 | Oct 1, 2007 | Hilcorp Energy Company | Heard, Claude E. et Al #8 | 5,925 | 39100669 |
| 646723 | Sep 28, 2007 | Sep 28, 2007 | Hilcorp Energy Company | Tom O'Connor (5800 Sd)fld Unit #P039 | 5,904 | 39101380 |
| 646754 | Sep 26, 2007 | Sep 26, 2007 | Laroco LLP | La Rosa Unit #56 | 6,750 | 39130554 |
| 646504 | Sep 26, 2007 | Sep 26, 2007 | Maran Oil Company | Mary Alice Anderson et Al-D- #7 | 5,500 | 39132742 |
| 646504Amendment | Sep 26, 2007 | Sep 26, 2007 | Maran Oil Company | Anderson, Mary Alice et al -D- #7 | 5,500 | 39132742 |
| 646229 | Sep 21, 2007 | Sep 21, 2007 | T - C Oil Company | Twin Mott -B- #1 | 7,750 | 39132735 |
| 645527 | Sep 18, 2007 | Sep 18, 2007 | Hilcorp Energy Company | Williams, Maude et al "A" #31 | 5,925 | 39100439 |
| 644608 | Sep 14, 2007 | Sep 14, 2007 | Genesis Producing Company | State Tract 50 #1 | 12,500 | 39132781 |
| 645513 | Sep 12, 2007 | Sep 12, 2007 | Beckham Resources, Inc. | Joshua #1 | 4,000 | 39132785 |
| 645664 | Sep 11, 2007 | Sep 11, 2007 | McDonald & Johnson Resources,llc | Marberry #16 | 4,800 | 39132786 |
| 645278 | Sep 5, 2007 | Sep 5, 2007 | McDonald & Johnson Resources,llc | Fagan C #C 12 | 4,800 | 39132784 |
| 645298 | Sep 4, 2007 | Sep 4, 2007 | High Plains Gas Systems, Inc. | Scanio/Shelton #8 | 7,800 | 39132782 |
| 645298Amendment | Sep 4, 2007 | Sep 4, 2007 | High Plains Gas Systems, Inc. | Scanio/Shelton #8 | 8,800 | 39132782 |
| 645139 | Aug 30, 2007 | Aug 30, 2007 | Hilcorp Energy Company | O'Connor, Thomas "C" #52 | 5,905 | 39101144 |
| 644507 | Aug 30, 2007 | Aug 30, 2007 | Hilcorp Energy Company | Heard, Claude E. et Al #13 | 5,925 | 39100551 |
| 644507Amendment | Aug 30, 2007 | Aug 30, 2007 | Hilcorp Energy Company | Heard, Claude E. et Al #13 | 5,925 | 39100551 |
| 644803 | Aug 27, 2007 | Aug 27, 2007 | Hilcorp Energy Company | Heard, Fannie V. W., Mrs. #1 | 5,968 | 39100671 |
| 644823 | Aug 23, 2007 | Aug 23, 2007 | Hilcorp Energy Company | Maude Williams et al "C" #7 | 6,250 | 39132627 |
| 644822 | Aug 23, 2007 | Aug 23, 2007 | Hilcorp Energy Company | Mrs Fannie V W Heard #68 | 4,500 | 39103793 |
| 644812 | Aug 23, 2007 | Aug 23, 2007 | Hilcorp Energy Company | O'Connor, Thomas "A" #102 | 5,904 | 39101558 |
| 644811 | Aug 23, 2007 | Aug 23, 2007 | Hilcorp Energy Company | Maude Williams et al "A" #D 41 | 4,646 | 39130174 |
| 644808 | Aug 23, 2007 | Aug 23, 2007 | Hilcorp Energy Company | Maude Williams et al "A" #D 46 | 4,650 | 39130173 |
| 644267 | Aug 22, 2007 | Aug 22, 2007 | High Plains Gas Systems, Inc. | Scanio/ Shelton #7 | 8,544 | 39132745 |
| 644519 | Aug 21, 2007 | Aug 21, 2007 | Hilcorp Energy Company | Reilly, Annie et Vir #14 | 6,745 | 39130190 |
| 644074 | Aug 16, 2007 | Aug 16, 2007 | T - C Oil Company | WLP #2 | 4,586 | 39132219 |
| 643947 | Aug 15, 2007 | Aug 15, 2007 | Hilcorp Energy Company | Bauer, Mary C. #3 | 5,918 | 39100752 |
| 643949 | Aug 11, 2007 | Aug 11, 2007 | Hilcorp Energy Company | Tom O'Connor (4150 Ft.sd.) #W305G | 5,400 | 39100726 |
| 619280Amendment | Aug 11, 2007 | Aug 11, 2007 | Hilcorp Energy Company | Tom O'Connor (4150 Ft.sd.) Unit #W721A | 4,669 | 39132630 |
| 643361 | Aug 7, 2007 | Aug 7, 2007 | T - C Oil Company | T-C Oil Co-O'Connor #59 | 5,200 | 39130394 |
| 643361Amendment | Aug 7, 2007 | Aug 7, 2007 | T - C Oil Company | T-C Oil Co-O'Connor #59 | 5,200 | 39130394 |
| 643322 | Aug 6, 2007 | Aug 6, 2007 | Hilcorp Energy Company | Tom O'Connor (4150 FT SD) Unit #W710A | 6,000 | 39100771 |
| 643143 | Aug 3, 2007 | Aug 3, 2007 | Hilcorp Energy Company | Williams, Maude et al "A" #D128 | 4,644 | 39131776 |
| 643142 | Aug 3, 2007 | Aug 3, 2007 | Hilcorp Energy Company | O'Connor, Thomas "A" #18 | 5,890 | 39101510 |
| 643139 | Aug 3, 2007 | Aug 3, 2007 | Hilcorp Energy Company | O'Connor, Thomas "C" #6G | 5,928 | 39101142 |
| 643138 | Aug 3, 2007 | Aug 3, 2007 | Hilcorp Energy Company | Heard, Mrs. Fannie V. W. #41 | 5,925 | 39100700 |
| 643138Amendment | Aug 3, 2007 | Aug 3, 2007 | Hilcorp Energy Company | Heard, Mrs. Fannie V. W. #41 | 5,925 | 39100700 |
| 643135 | Aug 3, 2007 | Aug 3, 2007 | Hilcorp Energy Company | Lambert, M. F. #155 | 6,200 | 39132623 |
| 643133 | Aug 3, 2007 | Aug 3, 2007 | Hilcorp Energy Company | Williams, Maude et al "A" #D 88 | 8,000 | 39130424 |
| 642880 | Jul 31, 2007 | Jul 31, 2007 | American Energy Partners, Inc. | Junie Johnstone #1 | 7,700 | 39132780 |
| 639075 | Jul 31, 2007 | Jul 31, 2007 | Hilcorp Energy Company | Oconnor, Thomas "D" #13 | 6,000 | 39101818 |
| 642603 | Jul 30, 2007 | Jul 30, 2007 | Hilcorp Energy Company | Tom O'Connor (5730 Ft. Sd.) Unit #B 6 | 5,924 | 39100505 |
| 642601 | Jul 27, 2007 | Jul 27, 2007 | Hilcorp Energy Company | Lambert, M. F. #127 | 4,463 | 39103897 |
| 642425 | Jul 26, 2007 | Jul 26, 2007 | Hilcorp Energy Company | Bauer, Mary Claire et Vir #9 | 6,000 | 39100758 |
| 642425Amendment | Jul 26, 2007 | Jul 26, 2007 | Hilcorp Energy Company | Tom O'Connor (4150 Ft. Sd.) Unit #W609A | 6,000 | 39100758 |
| 641793 | Jul 14, 2007 | Jul 14, 2007 | Hilcorp Energy Company | O'Connor, Thomas "C" #18 | 5,911 | 39101168 |
| 641352 | Jul 6, 2007 | Jul 6, 2007 | Hilcorp Energy Company | Tom O'Connor (5730 Ft.sd.) Unit #B 15 | 5,918 | 39100517 |
| 641219 | Jul 6, 2007 | Jul 6, 2007 | T - C Oil Company | Willow Creek -B- #3 | 10,000 | 39132778 |
| 641223 | Jul 5, 2007 | Jul 5, 2007 | T - C Oil Company | Willow Dreek -B- #2 | 10,000 | 39132779 |
| 639870 | Jul 5, 2007 | Jul 5, 2007 | Hilcorp Energy Company | Heard, Clement #32 | 6,400 | 39132472 |
| 641006 | Jun 29, 2007 | Jun 29, 2007 | Hilcorp Energy Company | Lake Pasture (FT-569) Field Unit #1083 | 7,563 | 39130347 |
| 641000 | Jun 29, 2007 | Jun 29, 2007 | Hilcorp Energy Company | Williams, Maude et al "A" #D 83 | 7,563 | 39130347 |
| 640994 | Jun 29, 2007 | Jun 29, 2007 | Hilcorp Energy Company | Heard, Clement #19 | 7,778 | 39130163 |
| 640854 | Jun 28, 2007 | Jun 28, 2007 | Hilcorp Energy Company | Lambert, M. F. "A" #A 4 | 6,500 | 39101771 |
| 640852 | Jun 28, 2007 | Jun 28, 2007 | Hilcorp Energy Company | Heard, Claude E., et Al #28 | 6,500 | 39100642 |
| 640441 | Jun 18, 2007 | Jun 18, 2007 | Hilcorp Energy Company | O'Connor, Thomas "C" #5G | 5,425 | 39101141 |
| 640331 | Jun 15, 2007 | Jun 15, 2007 | Christopher Oil & Gas Inc | Schirmer Buck Unit #2 | 6,500 | 39132777 |
| 640298 | Jun 15, 2007 | Jun 15, 2007 | Republic Resources, LLC. | Rooke #1 | 8,400 | 39132705 |
| 640004 | Jun 12, 2007 | Jun 12, 2007 | T - C Oil Company | T-C Oil Co.-O'Connor #35 | 4,500 | 39100311 |
| 639793 | Jun 6, 2007 | Jun 6, 2007 | Kebo Oil & Gas, Inc. | Heard, Thelma #2 | 4,100 | 39132776 |
| 639793Amendment | Jun 6, 2007 | Jun 6, 2007 | Kebo Oil & Gas, Inc. | Heard, Thelma #2 | 4,100 | 39132776 |
| 639728 | Jun 4, 2007 | Jun 4, 2007 | T - C Oil Company | Martin O'Connor-B- #1 | 8,149 | 39132681 |
| 639726 | Jun 4, 2007 | Jun 4, 2007 | T - C Oil Company | Vincent #1 | 5,997 | 39132736 |
| 639563 | May 30, 2007 | May 30, 2007 | Acock/Anaqua Operating Co., LP | Miguelita Scanio #17 | 7,200 | 39132775 |
| 639563Amendment | May 30, 2007 | May 30, 2007 | Acock/Anaqua Operating Co., LP | Miguelita Scanio #17 | 7,200 | 39132775 |
| 639548 | May 29, 2007 | May 29, 2007 | Aurora Resources Corporation | Heard Heirs #1 | 5,000 | 39132774 |
| 639548Amendment | May 29, 2007 | May 29, 2007 | Aurora Resources Corporation | Heard Heirs #1 | 5,000 | 39132774 |
| 639449 | May 25, 2007 | May 25, 2007 | Hilcorp Energy Company | Fox, W. J. "B" #30 | 6,081 | 39101111 |
| 639447 | May 25, 2007 | May 25, 2007 | Hilcorp Energy Company | Williams, Maude, Etal "A" #D 40 | 5,800 | 39104014 |
| 639438 | May 25, 2007 | May 25, 2007 | Charro Operating, L.L.C. | Vidauri #9 | 6,200 | 39132773 |
| 639428 | May 25, 2007 | May 25, 2007 | McDonald & Johnson Resources,llc | Fagan C #5 | 4,500 | 39100158 |
| 639208 | May 22, 2007 | May 22, 2007 | Kebo Oil & Gas, Inc. | Shelton #5 | 7,600 | 39132772 |
| 639208Amendment | May 22, 2007 | May 22, 2007 | Kebo Oil & Gas, Inc. | Shelton #5 | 7,600 | 39132772 |
| 639207 | May 22, 2007 | May 22, 2007 | Kebo Oil & Gas, Inc. | Welder Heirs #1 | 7,600 | 39132771 |
| 639207Amendment | May 22, 2007 | May 22, 2007 | Kebo Oil & Gas, Inc. | Welder Heirs #1 | 7,600 | 39132771 |
| 639175 | May 21, 2007 | May 21, 2007 | Charro Operating, L.L.C. | Vidauri #7 | 6,200 | 39132770 |