| 629334 | Nov 20, 2006 | Nov 20, 2006 | American Energy Partners, Inc. | Rooke #2 | 8,500 | 39132753 |
| 629167 | Nov 20, 2006 | Nov 20, 2006 | Hilcorp Energy Company | Williams, Maude et al "A" #D162 | 4,800 | 39132115 |
| 628296 | Nov 20, 2006 | Nov 20, 2006 | Hilcorp Energy Company | Maude Williams et al "A" #D110H | 5,851 | 39103783 |
| 628294 | Nov 16, 2006 | Nov 16, 2006 | Hilcorp Energy Company | Lambert, M. F. #70 | 5,918 | 39101326 |
| 628817 | Nov 10, 2006 | Nov 10, 2006 | Genesis Producing Company | State Tract 58 #1 | 11,000 | 39132752 |
| 628797 | Nov 9, 2006 | Nov 9, 2006 | Charro Operating, L.L.C. | O'Connor, M. V. Estate #1A | 6,200 | 39132751 |
| 626738 | Oct 31, 2006 | Oct 31, 2006 | Hilcorp Energy Company | Fox, W. J. "A" #48 | 8,172 | 39132702 |
| 627905 | Oct 27, 2006 | Oct 27, 2006 | Hilcorp Energy Company | Lambert Gas Unit #120 | 5,840 | 39101399 |
| 627897 | Oct 27, 2006 | Oct 27, 2006 | Hilcorp Energy Company | Heard, Fannie V. W., Mrs. #87 | 4,500 | 39130047 |
| 627741 | Oct 25, 2006 | Oct 25, 2006 | Acock/Anaqua Operating Co., LP | Heard #1 | 7,200 | 39132750 |
| 627924 | Oct 24, 2006 | Oct 24, 2006 | T - C Oil Company | O'Connor, Dennis et al -L- #L 75 | 4,475 | 39132542 |
| 627403 | Oct 23, 2006 | Oct 23, 2006 | Hilcorp Energy Company | Tom O'CONNOR(5600 Foot Sand)unit #W403GB | 5,980 | 39100556 |
| 627403Amendment | Oct 23, 2006 | Oct 23, 2006 | Hilcorp Energy Company | Heard, Claude E. et Al #3G | 5,980 | 39100556 |
| 601729 | Oct 23, 2006 | Oct 23, 2006 | T - C Oil Company | Duke Ranch -U- #1 | 6,500 | 39132677 |
| 627722 | Oct 18, 2006 | Oct 18, 2006 | Acock/Anaqua Operating Co., LP | Scanio Shelton #7 | 9,000 | 39132749 |
| 627722Amendment | Oct 18, 2006 | Oct 18, 2006 | Acock/Anaqua Operating Co., LP | Scanio Shelton #7 | 9,000 | 39132749 |
| 627514 | Oct 13, 2006 | Oct 13, 2006 | Acock/Anaqua Operating Co., LP | Scanio Shelton #6 | 7,300 | 39132748 |
| 627414 | Oct 12, 2006 | Oct 12, 2006 | Charro Operating, L.L.C. | Mercy Hosptal-Huff Unit #1 | 6,200 | 39132747 |
| 621956 | Oct 12, 2006 | Oct 12, 2006 | Hilcorp Energy Company | O'Connor, Thomas "C" #52 | 5,905 | 39101144 |
| 621956Amendment | Oct 12, 2006 | Oct 12, 2006 | Hilcorp Energy Company | Tom O'Connor (5600 Foot Sand) UN #W252B | 5,905 | 39101144 |
| 626746 | Oct 6, 2006 | Oct 6, 2006 | Hilcorp Energy Company | Lambert, M. F. #60 | 5,915 | 39101433 |
| 626746Amendment | Oct 6, 2006 | Oct 6, 2006 | Hilcorp Energy Company | Lambert, M. F. #60 | 5,915 | 39101433 |
| 626746Amendment | Oct 6, 2006 | Oct 6, 2006 | Hilcorp Energy Company | Lambert Gas Unit #60 | 5,915 | 39101433 |
| 626745 | Oct 6, 2006 | Oct 6, 2006 | Hilcorp Energy Company | Lambert Gas Unit #125 | 5,840 | 39101447 |
| 626745Amendment | Oct 6, 2006 | Oct 6, 2006 | Hilcorp Energy Company | Lambert, M. F. #125 | 5,840 | 39101447 |
| 626744 | Oct 6, 2006 | Oct 6, 2006 | Hilcorp Energy Company | Lambert Gas Unit #15 | 6,507 | 39101210 |
| 627068 | Oct 5, 2006 | Oct 5, 2006 | T - C Oil Company | T-C Oil Co.-O'Connor #84 | 4,500 | 39131997 |
| 627067 | Oct 5, 2006 | Oct 5, 2006 | T - C Oil Company | O'Connor, Dennis et al -L- #L 5 | 2,100 | 39100197 |
| 627066 | Oct 5, 2006 | Oct 5, 2006 | T - C Oil Company | O'Connor, Dennis et al -L- #L 56 | 4,510 | 39131665 |
| 626774 | Sep 29, 2006 | Sep 29, 2006 | T - C Oil Company | O'Connor, Dennis et al -L- #L 8 | 2,301 | 39100335 |
| 626773 | Sep 29, 2006 | Sep 29, 2006 | T - C Oil Company | O'Connor, Dennis et al -L- #L 37 | 4,500 | 39130169 |
| 626734 | Sep 29, 2006 | Sep 29, 2006 | Hilcorp Energy Company | Williams, Maude et al "A" #D135 | 4,628 | 39131786 |
| 626055 | Sep 22, 2006 | Sep 22, 2006 | Cummins & Walker Oil Co., Inc. | O'Brien-Harkins #2 | 5,900 | 39132669 |
| 625745 | Sep 19, 2006 | Sep 19, 2006 | Hilcorp Energy Company | Heard, Mrs. Fannie V. W. #81 | 4,515 | 39103791 |
| 625887 | Sep 13, 2006 | Sep 13, 2006 | High Plains Gas Systems, Inc. | Scanio/Shelton #7 | 8,544 | 39132745 |
| 625413 | Sep 6, 2006 | Sep 6, 2006 | Forest Oil Corporation | Welder "G" #21 | 5,400 | 39132164 |
| 625337 | Sep 6, 2006 | Sep 6, 2006 | Hilcorp Energy Company | Williams, Maude et al "A" #D 12A | 5,760 | 39100277 |
| 624985 | Aug 30, 2006 | Aug 30, 2006 | Hilcorp Energy Company | Lambert Gas Unit #118 | 5,835 | 39101494 |
| 624974 | Aug 30, 2006 | Aug 30, 2006 | Hilcorp Energy Company | Heard, Clement #13 | 6,000 | 39100850 |
| 624958 | Aug 30, 2006 | Aug 30, 2006 | Hilcorp Energy Company | Williams, Maude et al "A" #D 6 | 5,780 | 39100272 |
| 624958Amendment | Aug 30, 2006 | Aug 30, 2006 | Hilcorp Energy Company | Williams, Maude et al "A" #D 6 | 5,780 | 39100272 |
| 624908 | Aug 29, 2006 | Aug 29, 2006 | Hilcorp Energy Company | Williams, Maude et al "A" #D107D | 6,100 | 39100296 |
| 624906 | Aug 29, 2006 | Aug 29, 2006 | Hilcorp Energy Company | Lake Pasture (FT-569) Field Unit #1196 | 6,224 | 39132679 |
| 624909 | Aug 25, 2006 | Aug 25, 2006 | Hilcorp Energy Company | Williams, Maude et al "A" #D 11 | 5,825 | 39100276 |
| 624733 | Aug 22, 2006 | Aug 22, 2006 | Emerald Oil & Gas LC | O'Connor, Mary Ellen #A 8 | 6,028 | 39101895 |
| 624659 | Aug 21, 2006 | Aug 21, 2006 | T - C Oil Company | O'Connor-D- #D 3 | 4,500 | 39100224 |
| 624613 | Aug 21, 2006 | Aug 21, 2006 | Acock/Anaqua Operating Co., LP | Miguelita Scanio #15 | 7,500 | 39132744 |
| 624608 | Aug 18, 2006 | Aug 18, 2006 | Modern Exploration, Inc. | Little, Lou #1R | 5,450 | 39132743 |
| 624278 | Aug 16, 2006 | Aug 16, 2006 | High Plains Gas Systems, Inc. | Scanio/Shelton #4 | 6,500 | 39132604 |
| 624276 | Aug 16, 2006 | Aug 16, 2006 | High Plains Gas Systems, Inc. | Scanio/Shelton #3 | 6,800 | 39132609 |
| 623864 | Aug 11, 2006 | Aug 11, 2006 | Hilcorp Energy Company | Lambert, M. F. #83 | 5,930 | 39101188 |
| 623864Amendment | Aug 11, 2006 | Aug 11, 2006 | Hilcorp Energy Company | Lambert Gas Unit #83 | 5,930 | 39101188 |
| 624146 | Aug 10, 2006 | Aug 10, 2006 | T - C Oil Company | O'Connor-D- #D 26 | 4,350 | 39130422 |
| 623277 | Aug 2, 2006 | Aug 2, 2006 | Hilcorp Energy Company | Heard, Fannie V. W., Mrs. #45 | 5,925 | 39100567 |
| 623275 | Aug 2, 2006 | Aug 2, 2006 | Hilcorp Energy Company | Annie Riley et Vir #22 | 6,799 | 39132709 |
| 623145 | Aug 1, 2006 | Aug 1, 2006 | Hilcorp Energy Company | Tom O'Connor (5800 SD) FLD Unit #P201 | 6,200 | 39131888 |
| 623123 | Aug 1, 2006 | Aug 1, 2006 | Hilcorp Energy Company | Williams, Maude et al "A" #D 87 | 5,860 | 39130423 |
| 618118 | Aug 1, 2006 | Aug 1, 2006 | Hilcorp Energy Company | Lambert Gas Unit #127 | 4,463 | 39103897 |
| 616191 | Aug 1, 2006 | Aug 1, 2006 | Hilcorp Energy Company | O'Connor, Thomas "A" #42 | 5,925 | 39101517 |
| 623483 | Jul 31, 2006 | Jul 31, 2006 | T - C Oil Company | O'Connor -D- #D 15 | 4,525 | 39100261 |
| 623481 | Jul 31, 2006 | Jul 31, 2006 | T - C Oil Company | L.A. Nordan-Thomas O'Connor Esta #8 | 5,775 | 39101714 |
| 623481Amendment | Jul 31, 2006 | Jul 31, 2006 | T - C Oil Company | Mellon Oil Unit #28 | 5,775 | 39101714 |
| 623479 | Jul 31, 2006 | Jul 31, 2006 | T - C Oil Company | Anderson, Mary Alice et al -D- #7 | 7,000 | 39132742 |
| 623115 | Jul 31, 2006 | Jul 31, 2006 | Hilcorp Energy Company | Lambert, M. F. #202 | 6,000 | 39132066 |
| 623262 | Jul 26, 2006 | Jul 26, 2006 | T - C Oil Company | O'Connor -D- #D 22 | 4,500 | 39130167 |
| 623219 | Jul 25, 2006 | Jul 25, 2006 | Laroco LLP | Rooke, B. D. #C 14 | 7,500 | 39132741 |
| 623122 | Jul 25, 2006 | Jul 25, 2006 | Hilcorp Energy Company | Lambert, M. F. #110 | 5,850 | 39101354 |
| 623114 | Jul 25, 2006 | Jul 25, 2006 | Hilcorp Energy Company | Lambert, M. F. #140 | 6,025 | 39130395 |
| 623114Amendment | Jul 25, 2006 | Jul 25, 2006 | Hilcorp Energy Company | Lambert, M. F. #140 | 6,025 | 39130395 |
| 622735 | Jul 20, 2006 | Jul 20, 2006 | Hilcorp Energy Company | Maude Williams et al "A" #D 27 | 7,800 | 39130175 |
| 622757 | Jul 18, 2006 | Jul 18, 2006 | Laroco LLP | La Rosa Unit #54 | 8,350 | 39132255 |
| 622449 | Jul 18, 2006 | Jul 18, 2006 | Crimson Exploration Oper., Inc. | Huff GU 1 #5 | 6,996 | 39100237 |
| 621957 | Jul 14, 2006 | Jul 14, 2006 | Hilcorp Energy Company | Williams, Maude et al "A" #D 34D | 5,400 | 39100287 |
| 622516 | Jul 13, 2006 | Jul 13, 2006 | T - C Oil Company | Nixon #1 | 7,500 | 39132740 |
| 622232 | Jul 10, 2006 | Jul 10, 2006 | T - C Oil Company | O'Connor, Joe -A- #1 | 7,500 | 39132739 |
| 621955 | Jul 10, 2006 | Jul 10, 2006 | Hilcorp Energy Company | O'Connor, Thomas "A" #32 | 5,960 | 39101459 |
| 621953 | Jul 10, 2006 | Jul 10, 2006 | Hilcorp Energy Company | Heard, Fannie V. W., Mrs. #39 | 5,925 | 39100698 |
| 621953Amendment | Jul 10, 2006 | Jul 10, 2006 | Hilcorp Energy Company | Heard, Fannie V. W., Mrs. #39 | 5,925 | 39100698 |
| 622154 | Jul 7, 2006 | Jul 7, 2006 | Kebo Oil & Gas, Inc. | Shelton #2 | 7,700 | 39132737 |
| 622151 | Jul 7, 2006 | Jul 7, 2006 | Kebo Oil & Gas, Inc. | Shelton #3 | 8,000 | 39132738 |
| 622045 | Jul 6, 2006 | Jul 6, 2006 | Forest Oil Corporation | Welder 'C' #19 | 6,110 | 39132160 |
| 622020 | Jul 5, 2006 | Jul 5, 2006 | T - C Oil Company | Copano Gas Unit #36 | 5,325 | 39101630 |
| 622018 | Jul 5, 2006 | Jul 5, 2006 | T - C Oil Company | O'Connor, Thomas -E- #E 17 | 5,730 | 39101640 |
| 621496 | Jun 23, 2006 | Jun 23, 2006 | T - C Oil Company | Vincent #1 | 7,500 | 39132736 |
| 621324 | Jun 23, 2006 | Jun 23, 2006 | Hilcorp Energy Company | Reilly, Annie et Vir #23 | 6,800 | 39132706 |
| 621279 | Jun 21, 2006 | Jun 21, 2006 | Forest Oil Corporation | Welder 'C' #19 | 6,200 | 39132160 |
| 621249 | Jun 19, 2006 | Jun 19, 2006 | Hilcorp Energy Company | Williams, Maude et al "A" #D200 | 8,200 | 39132597 |
| 620711 | Jun 9, 2006 | Jun 9, 2006 | Forest Oil Corporation | Welder "C" #23 | 5,030 | 39132166 |
| 618003 | Jun 8, 2006 | Jun 8, 2006 | Hilcorp Energy Company | Williams, Maude et al "B" #26 | 5,980 | 39100539 |
| 620458 | Jun 7, 2006 | Jun 7, 2006 | Hilcorp Energy Company | Lambert, M. F. #159 | 6,215 | 39132700 |
| 620427 | Jun 7, 2006 | Jun 7, 2006 | Hilcorp Energy Company | O'Connor, Tom (5800 SD) FLD Unit #Q532 | 6,400 | 39132472 |
| 620425 | Jun 6, 2006 | Jun 6, 2006 | Hilcorp Energy Company | Williams, Maude et al "A" #D107D | 6,100 | 39100296 |
| 620151 | Jun 5, 2006 | Jun 5, 2006 | Hilcorp Energy Company | O'Connor "C", Thomas #51 | 5,915 | 39101143 |
| 620334 | Jun 2, 2006 | Jun 2, 2006 | T - C Oil Company | Twin Mott-B- #1 | 10,000 | 39132735 |
| 620332 | Jun 2, 2006 | Jun 2, 2006 | T - C Oil Company | Twin Mott-A- #1 | 11,000 | 39132733 |
| 620328 | Jun 2, 2006 | Jun 2, 2006 | T - C Oil Company | Twin Mott-C- #1 | 10,000 | 39132734 |
| 620325 | Jun 2, 2006 | Jun 2, 2006 | T - C Oil Company | Martin O'Connor-E- #1 | 7,500 | 39132732 |
| 620325Amendment | Jun 2, 2006 | Jun 2, 2006 | T - C Oil Company | Martin O'Connor-E- #1 | 7,500 | 39132732 |
| 619425 | May 31, 2006 | May 31, 2006 | Hilcorp Energy Company | Lambert, M. F. #103 | 5,840 | 39101444 |
| 619425Amendment | May 31, 2006 | May 31, 2006 | Hilcorp Energy Company | Lambert, M. F. #103 | 5,840 | 39101444 |