| 623525 | Aug 4, 2006 | Aug 4, 2006 | Range Production Company | West Fuhrman-Mascho Unit #20700339912 | 4,900 |
| 623523 | Aug 4, 2006 | Aug 4, 2006 | Range Production Company | West Fuhrman-Mascho Unit #20600339911 | 4,900 |
| 623522 | Aug 4, 2006 | Aug 4, 2006 | Range Production Company | West Fuhrman-Mascho Unit #20500339910 | 4,900 |
| 623691 | Aug 2, 2006 | Aug 2, 2006 | XTO Energy Inc. | Texas L #7HH00338716 | 10,600 |
| 623622 | Aug 1, 2006 | Aug 1, 2006 | XTO Energy Inc. | University 9B #7HH00338290 | 10,550 |
| 623194 | Jul 25, 2006 | Jul 25, 2006 | Nadel and Gussman Permian,l.l.c. | Hardrock University #100339909 | 10,200 |
| 622642 | Jul 20, 2006 | Jul 20, 2006 | XTO Energy Inc. | University 9A #3HH00305161 | 10,600 |
| 622715 | Jul 18, 2006 | Jul 18, 2006 | XTO Energy Inc. | State University AO #12HH00338320 | 10,500 |
| 622715Amendment | Jul 18, 2006 | Jul 18, 2006 | XTO Energy Inc. | State University AO #12HH00338320 | 10,500 |
| 622473 | Jul 17, 2006 | Jul 17, 2006 | XTO Energy Inc. | State University At #1100339907 | 5,000 |
| 617563 | Jul 17, 2006 | Jul 17, 2006 | Thompson, J. Cleo | University 8-11 #100339850 | 13,000 |
| 622634 | Jul 14, 2006 | Jul 14, 2006 | Parallel Petroleum Corporation | Perkins #100339908 | 5,000 |
| 622328 | Jul 14, 2006 | Jul 14, 2006 | XTO Energy Inc. | Universtiy 9 C 6H #2H00338203 | 11,000 |
| 622250 | Jul 10, 2006 | Jul 10, 2006 | XTO Energy Inc. | Texas "Q" #1100339646 | 10,900 |
| 622250Amendment | Jul 10, 2006 | Jul 10, 2006 | XTO Energy Inc. | Texas "Q" #1100339646 | 10,900 |
| 619971 | Jul 7, 2006 | Jul 7, 2006 | Burleson, Lewis B. Inc. | Argo B #200339883 | 4,700 |
| 621811 | Jul 6, 2006 | Jul 6, 2006 | Range Production Company | West Fuhrman-Mascho Unit #20000339903 | 4,900 |
| 621810 | Jul 6, 2006 | Jul 6, 2006 | Range Production Company | West Fuhrman-Mascho Unit #19800339902 | 4,900 |
| 620970 | Jul 6, 2006 | Jul 6, 2006 | Range Production Company | West Fuhrman-Mascho Unit #40400339893 | 4,900 |
| 620969 | Jul 6, 2006 | Jul 6, 2006 | Range Production Company | West Fuhrman-Mascho Unit #40300339894 | 4,900 |
| 620968 | Jul 6, 2006 | Jul 6, 2006 | Range Production Company | West Fuhrman-Mascho Unit #40200339892 | 4,900 |
| 621813 | Jul 5, 2006 | Jul 5, 2006 | Range Production Company | West Fuhrman-Mascho Unit #22000339905 | 4,900 |
| 621812 | Jul 5, 2006 | Jul 5, 2006 | Range Production Company | West Fuhrman-Mascho Unit #21000339904 | 4,900 |
| 621812Amendment | Jul 5, 2006 | Jul 5, 2006 | Range Production Company | West Fuhrman-Mascho Unit #21000339904 | 4,900 |
| 621888 | Jun 30, 2006 | Jun 30, 2006 | Pacesetter Energy, Inc. | Savage #100330129 | 11,800 |
| 621842 | Jun 30, 2006 | Jun 30, 2006 | Phoenix Petrocorp, Inc. | South Fuhrman-Mascho Unit #91700339901 | 5,000 |
| 618987 | Jun 27, 2006 | Jun 27, 2006 | Phoenix Petrocorp, Inc. | South Fuhrman-Mascho Unit #91800339860 | 5,000 |
| 621180 | Jun 23, 2006 | Jun 23, 2006 | OK Arena Operating Company | Ashton Nora B #400339897 | 4,800 |
| 621188 | Jun 22, 2006 | Jun 22, 2006 | OK Arena Operating Company | Jones, R. C. #800339900 | 4,800 |
| 621187 | Jun 22, 2006 | Jun 22, 2006 | OK Arena Operating Company | Jones, R. C. #700339899 | 4,800 |
| 621186 | Jun 22, 2006 | Jun 22, 2006 | OK Arena Operating Company | Jones, R. C. #600339898 | 4,800 |
| 620994 | Jun 21, 2006 | Jun 21, 2006 | Range Production Company | Northeast Fuhrman-Mascho Unit #12200339896 | 4,900 |
| 620971 | Jun 21, 2006 | Jun 21, 2006 | Range Production Company | Northeast Fuhrman-Mascho #13600339895 | 4,900 |
| 620708 | Jun 14, 2006 | Jun 14, 2006 | Nadel and Gussman Permian,l.l.c. | Antelope University #200336814 | 9,966 |
| 620687 | Jun 13, 2006 | Jun 13, 2006 | Stephens & Johnson Operating Co. | University "A" #1400339891 | 7,500 |
| 620682 | Jun 13, 2006 | Jun 13, 2006 | Stephens & Johnson Operating Co. | University "A" #1300339890 | 7,500 |
| 620239 | Jun 9, 2006 | Jun 9, 2006 | Minihan Oil & Gas Ltd. | University 11A #600338812 | 8,100 |
| 620384 | Jun 6, 2006 | Jun 6, 2006 | Minihan Oil & Gas Ltd. | University Atp #700338831 | 8,100 |
| 620238 | Jun 6, 2006 | Jun 6, 2006 | Minihan Oil & Gas Ltd. | University -T- #300336638 | 8,200 |
| 620318 | Jun 5, 2006 | Jun 5, 2006 | Thompson, J. Cleo | University 9-8 #100339888 | 4,700 |
| 620317 | Jun 5, 2006 | Jun 5, 2006 | Thompson, J. Cleo | University 9-18 #200339889 | 4,700 |
| 620316 | Jun 5, 2006 | Jun 5, 2006 | Thompson, J. Cleo | University 9-17 #100339887 | 4,700 |
| 620216 | Jun 5, 2006 | Jun 5, 2006 | Thompson, J. Cleo | University 10-12 #200339886 | 4,700 |
| 620214 | Jun 5, 2006 | Jun 5, 2006 | Thompson, J. Cleo | University 10-12 #100339885 | 4,700 |
| 620109 | Jun 5, 2006 | Jun 5, 2006 | Minihan Oil & Gas Ltd. | Phillips University 11A #500310307 | 8,151 |
| 618634 | Jun 5, 2006 | Jun 5, 2006 | Minihan Oil & Gas Ltd. | University Atp #600338806 | 8,100 |
| 620081 | Jun 2, 2006 | Jun 2, 2006 | Thompson, J. Cleo | University 9-7 #400339884 | 4,700 |
| 619559 | Jun 2, 2006 | Jun 2, 2006 | OK Arena Operating Company | Thornberry, M. A. Cons. I #1400339880 | 4,800 |
| 619559Amendment | Jun 2, 2006 | Jun 2, 2006 | OK Arena Operating Company | Thornberry, M. A. Cons. I #1400339880 | 4,800 |
| 619521 | Jun 2, 2006 | Jun 2, 2006 | OK Arena Operating Company | Thornberry, M. A. Cons. III #1100339872 | 4,800 |
| 618638 | Jun 1, 2006 | Jun 1, 2006 | Minihan Oil & Gas Ltd. | University T #100304573 | 6,906 |
| 619558 | May 31, 2006 | May 31, 2006 | OK Arena Operating Company | Thornberry Cons. I #1300339879 | 4,800 |
| 619558Amendment | May 31, 2006 | May 31, 2006 | OK Arena Operating Company | Thornberry Cons. I #1300339879 | 4,800 |
| 617562 | May 31, 2006 | May 31, 2006 | Thompson, J. Cleo | University 8-11 #200339849 | 13,000 |
| 619614 | May 24, 2006 | May 24, 2006 | OK Arena Operating Company | Thornberry Cons. I #1500339882 | 4,800 |
| 619555 | May 24, 2006 | May 24, 2006 | OK Arena Operating Company | Seidel #1000339881 | 4,800 |
| 617999 | May 24, 2006 | May 24, 2006 | Minihan Oil & Gas Ltd. | Phillips University 15-11 #200339032 | 8,122 |
| 617999Amendment | May 24, 2006 | May 24, 2006 | Sandridge Expl. and Prod., LLC | Phillips University 15-11 #200339032 | 8,122 |
| 619557 | May 23, 2006 | May 23, 2006 | OK Arena Operating Company | Thornberry, M. A. Cons. I #1200339878 | 4,800 |
| 619556 | May 23, 2006 | May 23, 2006 | OK Arena Operating Company | Thornberry, M. A. Cons I #1100339877 | 4,800 |
| 619530 | May 23, 2006 | May 23, 2006 | OK Arena Operating Company | Thornberry, M. A. Cons. III #1500339876 | 4,800 |
| 619525 | May 23, 2006 | May 23, 2006 | OK Arena Operating Company | Thornberry, M. A. Cons. III #1400339875 | 4,800 |
| 619524 | May 23, 2006 | May 23, 2006 | OK Arena Operating Company | Thornberry, M. A. Cons III #1300339874 | 4,800 |
| 619522 | May 23, 2006 | May 23, 2006 | OK Arena Operating Company | Thornberry, M. A. Cons. III #1200339873 | 4,800 |
| 618637 | May 23, 2006 | May 23, 2006 | Minihan Oil & Gas Ltd. | University 15-11 #100338668 | 8,715 |
| 618983 | May 16, 2006 | May 16, 2006 | Phoenix Petrocorp, Inc. | South Fuhrman-Mascho Unit #96400339871 | 5,000 |
| 618960 | May 16, 2006 | May 16, 2006 | Range Production Company | West Fuhrman-Mascho Unit #81R00339870 | 4,900 |
| 618959 | May 16, 2006 | May 16, 2006 | Range Production Company | West Fuhrman-Mascho Unit #34200339869 | 4,900 |
| 618454 | May 16, 2006 | May 16, 2006 | Thompson, J. Cleo | Willis W #200339856 | 11,400 |
| 618988 | May 15, 2006 | May 15, 2006 | Phoenix Petrocorp, Inc. | South Fuhrman-Mascho Unit #95400339862 | 5,000 |
| 618636 | May 15, 2006 | May 15, 2006 | Minihan Oil & Gas Ltd. | University T #200304643 | 5,823 |
| 619187 | May 12, 2006 | May 12, 2006 | Oilfield Management, Inc. (A) | University 6-47 #100339868 | 12,800 |
| 619187Amendment | May 12, 2006 | May 12, 2006 | Oilfield Management, Inc. (A) | University 6-47 #100339868 | 12,800 |
| 618993 | May 12, 2006 | May 12, 2006 | Phoenix Petrocorp, Inc. | South Fuhrman-Mascho Unit #97400339864 | 5,000 |
| 618991 | May 12, 2006 | May 12, 2006 | Phoenix Petrocorp, Inc. | South Fuhrman-Mascho Unit #92800339867 | 5,000 |
| 618999 | May 10, 2006 | May 10, 2006 | Phoenix Petrocorp, Inc. | South Fuhrman-Mascho Unit #84700339865 | 5,000 |
| 618998 | May 10, 2006 | May 10, 2006 | Phoenix Petrocorp, Inc. | South Fuhrman-Mascho Unit #84800339866 | 5,000 |
| 618992 | May 10, 2006 | May 10, 2006 | Phoenix Petrocorp, Inc. | South Fuhrman-Mascho Unit #97700339863 | 5,000 |
| 618990 | May 10, 2006 | May 10, 2006 | Phoenix Petrocorp, Inc. | South Fuhrman-Mascho Unit #98400339861 | 5,000 |
| 618986 | May 9, 2006 | May 9, 2006 | Phoenix Petrocorp, Inc. | South Fuhrman-Mascho Unit #95700339859 | 5,000 |
| 618957 | May 9, 2006 | May 9, 2006 | Range Production Company | West Fuhrman-Mascho Unit #34100339858 | 4,900 |
| 618956 | May 9, 2006 | May 9, 2006 | Range Production Company | West Fuhrman-Mascho #31500339857 | 4,900 |
| 617447 | May 2, 2006 | May 2, 2006 | Range Production Company | West Fuhrman-Mascho Unit #21100339844 | 4,900 |
| 618439 | May 1, 2006 | May 1, 2006 | Range Production Company | West Fuhrman-Mascho Unit #34400339855 | 4,900 |
| 618438 | May 1, 2006 | May 1, 2006 | Range Production Company | West Fuhrman-Mascho Unit #34300339854 | 4,900 |
| 618410 | May 1, 2006 | May 1, 2006 | Triumph Exploration, Inc. | Hillbilly #200338641 | 4,900 |
| 617925 | Apr 27, 2006 | Apr 27, 2006 | Merit Energy Company | Texas -AA- #900336275 | 10,880 |
| 618007 | Apr 24, 2006 | Apr 24, 2006 | COG Operating LLC | Bitler Lowe Clearfork Unit #2100339853 | 7,500 |
| 618005 | Apr 24, 2006 | Apr 24, 2006 | COG Operating LLC | Bitler Lowe B #1200339852 | 7,500 |
| 617516 | Apr 20, 2006 | Apr 20, 2006 | Range Production Company | Findley #100339848 | 4,900 |
| 617445 | Apr 20, 2006 | Apr 20, 2006 | Range Production Company | Berry #100339842 | 4,900 |
| 617444 | Apr 19, 2006 | Apr 19, 2006 | Range Production Company | Cox #100339843 | 4,900 |
| 617465 | Apr 18, 2006 | Apr 18, 2006 | OXY USA WTP LP | Queenbee #200339847 | 10,000 |
| 617450 | Apr 18, 2006 | Apr 18, 2006 | Range Production Company | West Fuhrman-Mascho Unit #20800339845 | 4,900 |
| 617448 | Apr 18, 2006 | Apr 18, 2006 | Range Production Company | West Fuhrman-Mascho Unit #21300339851 | 4,900 |
| 617446 | Apr 18, 2006 | Apr 18, 2006 | Range Production Company | Lockhart & Brown 16 #300339846 | 4,900 |
| 617443 | Apr 18, 2006 | Apr 18, 2006 | Range Production Company | West Fuhrman-Mascho Unit #30800339841 | 4,900 |
| 617333 | Apr 17, 2006 | Apr 17, 2006 | COG Operating LLC | Lowe, M. R. 15 #100339840 | 7,300 |
| 614253 | Apr 17, 2006 | Apr 17, 2006 | Range Production Company | West Fuhrman-Mascho Unit #40000339824 | 4,900 |
| 614255 | Apr 13, 2006 | Apr 13, 2006 | Range Production Company | West Fuhrman-Mascho Unit #36200339828 | 4,900 |