| 631528 | Jan 26, 2007 | Jan 26, 2007 | Chisholm Operating, Inc. | Bartley #112531077 | 5,500 |
| 631519 | Jan 26, 2007 | Jan 26, 2007 | Chisholm Operating, Inc. | Maben #612531076 | 5,900 |
| 627651 | Dec 20, 2006 | Dec 20, 2006 | Gunn Oil Company | Swenson Unit #112531062 | 5,500 |
| 627814 | Dec 19, 2006 | Dec 19, 2006 | Sullivan, Hollis R. Inc. | Key-Carlisle Unit #112531063 | 7,200 |
| 630592 | Dec 15, 2006 | Dec 15, 2006 | Gunn Oil Company | Randall #112531075 | 5,500 |
| 629730 | Nov 30, 2006 | Nov 30, 2006 | Gunn Oil Company | Conner #212531074 | 5,500 |
| 629600 | Nov 29, 2006 | Nov 29, 2006 | Cholla Petroleum, Inc. | Matthews #112531073 | 4,999 |
| 629599 | Nov 29, 2006 | Nov 29, 2006 | Alliance Ogo, LP | Pitchfork #1B12531072 | 4,700 |
| 629545 | Nov 28, 2006 | Nov 28, 2006 | Alliance Ogo, LP | Pitchfork #2A12531071 | 4,700 |
| 629305 | Nov 21, 2006 | Nov 21, 2006 | Cholla Petroleum, Inc. | Gilbert Heirs #112531069 | 4,999 |
| 629032 | Nov 21, 2006 | Nov 21, 2006 | Chisholm Operating, Inc. | Arnold #1A12531070 | 5,800 |
| 628908 | Nov 13, 2006 | Nov 13, 2006 | Cholla Petroleum, Inc. | Old Dobbins #212531193 | 4,999 |
| 628908Amendment | Nov 13, 2006 | Nov 13, 2006 | Cholla Petroleum, Inc. | Rose, D. G. #112531193 | 4,999 |
| 628734 | Nov 9, 2006 | Nov 9, 2006 | Schalk Oil Company, Inc. | Wyatt Unit #112531067 | 5,300 |
| 628316 | Nov 1, 2006 | Nov 1, 2006 | Alliance Ogo, LP | Pitchfork #1A12531065 | 5,500 |
| 628328 | Oct 31, 2006 | Oct 31, 2006 | Cholla Petroleum, Inc. | Old Dobbins #112531066 | 4,999 |
| 628078 | Oct 26, 2006 | Oct 26, 2006 | Chisholm Operating, Inc. | Arnold #2A12531064 | 5,800 |
| 626995 | Oct 4, 2006 | Oct 4, 2006 | Schalk Oil Company, Inc. | Long #112531061 | 5,200 |
| 626901 | Oct 3, 2006 | Oct 3, 2006 | Medders Oil Company, Inc. | Pitchfork Cccc #212531060 | 4,200 |
| 626901Amendment | Oct 3, 2006 | Oct 3, 2006 | Medders Oil Company, Inc. | Pitchfork Cccc #212531060 | 4,200 |
| 625963 | Sep 22, 2006 | Sep 22, 2006 | Chisholm Operating, Inc. | Belt #212531059 | 5,500 |
| 625782 | Sep 22, 2006 | Sep 22, 2006 | Chisholm Operating, Inc. | Arnold #412531058 | 5,200 |
| 624846 | Aug 25, 2006 | Aug 25, 2006 | Schalk Oil Company, Inc. | Pitchfork #2A12531056 | 4,300 |
| 624896 | Aug 24, 2006 | Aug 24, 2006 | Crego Exploration | McWilliams #212531057 | 4,800 |
| 624569 | Aug 18, 2006 | Aug 18, 2006 | TKP Petroleum, Inc. | Smithey-Rackley "a" Unit #112531055 | 4,900 |
| 622539 | Aug 8, 2006 | Aug 8, 2006 | Henderson & Erickson, Inc. | Thomason #112531049 | 6,000 |
| 622539Amendment | Aug 8, 2006 | Aug 8, 2006 | Henderson & Erickson, Inc. | Thomason #112531049 | 6,000 |
| 623934 | Aug 7, 2006 | Aug 7, 2006 | Schalk Oil Company, Inc. | Beggs #112531054 | 4,400 |
| 622765 | Jul 26, 2006 | Jul 26, 2006 | Chisholm Operating, Inc. | Maben #512531050 | 5,500 |
| 623098 | Jul 25, 2006 | Jul 25, 2006 | Woods Operating Co., Inc. | Williams #812531053 | 7,200 |
| 623097 | Jul 25, 2006 | Jul 25, 2006 | Sullivan, Hollis R. Inc. | Spring Creek #112531052 | 7,200 |
| 623097Amendment | Jul 25, 2006 | Jul 25, 2006 | Sullivan, Hollis R. Inc. | Spring Creek #112531052 | 6,000 |
| 623092 | Jul 25, 2006 | Jul 25, 2006 | Sullivan, Hollis R. Inc. | Moore #212531051 | 7,200 |
| 622797 | Jul 18, 2006 | Jul 18, 2006 | Schalk Oil Company, Inc. | Edwards #1A12531048 | 4,800 |
| 621798 | Jun 29, 2006 | Jun 29, 2006 | Schalk Oil Company, Inc. | Thomas Unit 2 #212531047 | 5,100 |
| 621470 | Jun 23, 2006 | Jun 23, 2006 | Chisholm Operating, Inc. | Arnold #312531045 | 5,300 |
| 621480 | Jun 22, 2006 | Jun 22, 2006 | Chisholm Operating, Inc. | Dunlap #112531046 | 5,400 |
| 621364 | Jun 21, 2006 | Jun 21, 2006 | Chisholm Operating, Inc. | Belt #112531044 | 5,200 |
| 621364Amendment | Jun 21, 2006 | Jun 21, 2006 | Chisholm Operating, Inc. | Belt #112531044 | 5,200 |
| 621363 | Jun 21, 2006 | Jun 21, 2006 | Sullivan, Hollis R. Inc. | Swenson #712530998 | 7,200 |
| 621303 | Jun 20, 2006 | Jun 20, 2006 | Medders Oil Company, Inc. | Pitchfork Aaaa #312531043 | 4,000 |
| 620792 | Jun 13, 2006 | Jun 13, 2006 | Sullivan, Hollis R. Inc. | Key #190312531042 | 7,200 |
| 619489 | May 31, 2006 | May 31, 2006 | Chisholm Operating, Inc. | Wyatt #212531041 | 5,500 |
| 619475 | May 18, 2006 | May 18, 2006 | Chisholm Operating, Inc. | Arnold #212531040 | 5,500 |
| 618558 | May 10, 2006 | May 10, 2006 | Trio Consulting & Management,llc | North Pitchfork I-A #210112531039 | 4,300 |
| 618226 | May 3, 2006 | May 3, 2006 | Schalk Oil Company, Inc. | Steele #112530917 | 5,045 |
| 618129 | May 3, 2006 | May 3, 2006 | Trio Consulting & Management,llc | North Pitchfork I-A #10112531038 | 4,300 |
| 617719 | Apr 21, 2006 | Apr 21, 2006 | Chisholm Operating, Inc. | Maben #312531037 | 6,000 |
| 617019 | Apr 5, 2006 | Apr 5, 2006 | Halliburton Operating Company | Matthews #112531036 | 4,700 |
| 616487 | Mar 28, 2006 | Mar 28, 2006 | Schalk Oil Company, Inc. | Rinehart-Long Unit #3A12531035 | 5,200 |
| 616175 | Mar 21, 2006 | Mar 21, 2006 | Sullivan, Hollis R. Inc. | Key #190212531034 | 7,200 |
| 616026 | Mar 20, 2006 | Mar 20, 2006 | Sullivan, Hollis R. Inc. | Pitchfork Unit "A" #30112531033 | 7,200 |
| 615561 | Mar 15, 2006 | Mar 15, 2006 | Sullivan, Hollis R. Inc. | Waller "A" #112531032 | 7,200 |
| 615384 | Mar 7, 2006 | Mar 7, 2006 | Schalk Oil Company, Inc. | Pitchfork #1A12531031 | 4,300 |
| 615273 | Mar 6, 2006 | Mar 6, 2006 | Sullivan, Hollis R. Inc. | Pitchfork-Toreador "22" #1212531030 | 7,200 |
| 615270 | Mar 6, 2006 | Mar 6, 2006 | Ross, Dwight M. Drlg. Co., Inc. | Pitchfork Cougar Mound #N 112530358 | 4,231 |
| 615131 | Mar 2, 2006 | Mar 2, 2006 | Crego Exploration | Green-MDJ Unit #112531029 | 4,800 |
| 614583 | Feb 21, 2006 | Feb 21, 2006 | Sullivan, Hollis R. Inc. | Swenson #812531028 | 7,200 |
| 614090 | Feb 15, 2006 | Feb 15, 2006 | Southern Cross Oil & Gas Co | R. W. Redding #112531027 | 6,000 |
| 613728 | Feb 13, 2006 | Feb 13, 2006 | Chisholm Operating, Inc. | Arnold #112531026 | 5,400 |
| 612232 | Jan 17, 2006 | Jan 17, 2006 | Chisholm Operating, Inc. | Maben #412531025 | 6,000 |
| 612153 | Jan 11, 2006 | Jan 11, 2006 | Schalk Oil Company, Inc. | Beggs Unit #112531024 | 4,700 |
| 612086 | Jan 9, 2006 | Jan 9, 2006 | Sullivan, Hollis R. Inc. | McInnes #112531023 | 7,200 |
| 611428 | Dec 29, 2005 | Dec 29, 2005 | Chisholm Operating, Inc. | Maben A #112531022 | 6,000 |
| 611584 | Dec 27, 2005 | Dec 27, 2005 | Sullivan, Hollis R. Inc. | Key #190112531021 | 7,200 |
| 611584Amendment | Dec 27, 2005 | Dec 27, 2005 | Sullivan, Hollis R. Inc. | Key Unit #190112531021 | 7,200 |
| 611189 | Dec 16, 2005 | Dec 16, 2005 | Sullivan, Hollis R. Inc. | Pitchfork Unit #140112531020 | 7,200 |
| 610408 | Dec 5, 2005 | Dec 5, 2005 | Sullivan, Hollis R. Inc. | Arnold #212531019 | 7,200 |
| 609958 | Nov 22, 2005 | Nov 22, 2005 | Schalk Oil Company, Inc. | Long Unit #112531018 | 5,200 |
| 609674 | Nov 21, 2005 | Nov 21, 2005 | Gunn Oil Company | Pitchfork BW #112531017 | 4,500 |
| 609041 | Nov 8, 2005 | Nov 8, 2005 | Ross, Dwight M. Drlg. Co., Inc. | Pitchfork Trinty Trace #112531016 | 4,300 |
| 609040 | Nov 8, 2005 | Nov 8, 2005 | Ross, Dwight M. Drlg. Co., Inc. | Pitchfork Cougar Mound #112531015 | 4,300 |
| 608862 | Nov 2, 2005 | Nov 2, 2005 | Woods Operating Co., Inc. | Williams #712531014 | 7,200 |
| 608714 | Nov 2, 2005 | Nov 2, 2005 | Double A B Oil & Gas Corporation | Lehew-Hindman Unit "285" #112531013 | 5,700 |
| 608644 | Nov 1, 2005 | Nov 1, 2005 | Trio Consulting & Management,llc | Garrett-Garcia #360112531012 | 6,000 |
| 608105 | Oct 18, 2005 | Oct 18, 2005 | Gunn Oil Company | Baker #112531011 | 5,500 |
| 608102 | Oct 18, 2005 | Oct 18, 2005 | Gunn Oil Company | Neaves #112531010 | 5,500 |
| 607980 | Oct 17, 2005 | Oct 17, 2005 | Sullivan, Hollis R. Inc. | Proffitt #112531009 | 7,200 |
| 607674 | Oct 11, 2005 | Oct 11, 2005 | Schalk Oil Company, Inc. | Collier #112531008 | 5,000 |
| 607338 | Oct 6, 2005 | Oct 6, 2005 | Chisholm Operating, Inc. | Trifecta Unit #112531007 | 6,000 |
| 606897 | Sep 27, 2005 | Sep 27, 2005 | Chisholm Operating, Inc. | Daugherty-Williams Unit #112531006 | 6,000 |
| 606918 | Sep 26, 2005 | Sep 26, 2005 | Sullivan, Hollis R. Inc. | Stautzenberger #112531005 | 7,200 |
| 606169 | Sep 12, 2005 | Sep 12, 2005 | Sullivan, Hollis R. Inc. | Steele "190" #212531004 | 7,200 |
| 605590 | Aug 29, 2005 | Aug 29, 2005 | Trio Consulting & Management,llc | North Pitchfork III #218112531003 | 4,300 |
| 605348 | Aug 23, 2005 | Aug 23, 2005 | Chisholm Operating, Inc. | Williams-Maben #112531002 | 5,999 |
| 605180 | Aug 19, 2005 | Aug 19, 2005 | TKP Petroleum, Inc. | Smithey #112531001 | 4,900 |
| 605108 | Aug 18, 2005 | Aug 18, 2005 | Chisholm Operating, Inc. | Bird #112531000 | 5,500 |
| 605020 | Aug 16, 2005 | Aug 16, 2005 | Trio Consulting & Management,llc | North Pitchfork I-A #90112530999 | 4,300 |
| 604169 | Jul 29, 2005 | Jul 29, 2005 | Sullivan, Hollis R. Inc. | Swenson #712530998 | 7,200 |
| 604088 | Jul 28, 2005 | Jul 28, 2005 | Chisholm Operating, Inc. | Neal #112530997 | 5,999 |
| 603542 | Jul 15, 2005 | Jul 15, 2005 | Sullivan, Hollis R. Inc. | Moore #112530996 | 7,200 |
| 603454 | Jul 15, 2005 | Jul 15, 2005 | Schalk Oil Company, Inc. | Brown Unit #212530995 | 5,300 |
| 603310 | Jul 12, 2005 | Jul 12, 2005 | Cholla Petroleum, Inc. | Eight Point #612530994 | 4,999 |
| 603023 | Jul 12, 2005 | Jul 12, 2005 | Crego Exploration | McWilliams #112530993 | 4,800 |
| 602730 | Jun 29, 2005 | Jun 29, 2005 | Chisholm Operating, Inc. | Williams #412530992 | 5,999 |
| 602160 | Jun 16, 2005 | Jun 16, 2005 | Sullivan, Hollis R. Inc. | Pitchfork-Toreador '22' #1112530991 | 7,200 |
| 601983 | Jun 15, 2005 | Jun 15, 2005 | Double A B Oil & Gas Corporation | Prairie Pines "286" #112530990 | 5,700 |
| 601747 | Jun 7, 2005 | Jun 7, 2005 | Schalk Oil Company, Inc. | Rinehart a Unit #212530989 | 5,500 |
| 601747Amendment | Jun 7, 2005 | Jun 7, 2005 | Schalk Oil Company, Inc. | Rinehart a Unit #212530989 | 5,500 |
| 601624 | Jun 7, 2005 | Jun 7, 2005 | Chisholm Operating, Inc. | Williams #312530988 | 5,999 |